Search result: GB 50019-2015 (GB 50019-2003 Older version)
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Design code for heating ventilation and air conditioning of industrial buildings
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| Standard ID | GB 50019-2015 (GB50019-2015) | | Description (Translated English) | Design code for heating ventilation and air conditioning of industrial buildings | | Sector / Industry | National Standard | | Classification of Chinese Standard | P45 | | Classification of International Standard | 91.140.30 | | Word Count Estimation | 330,312 | | Date of Issue | 2015-05-22 | | Date of Implementation | 2016-02-01 | | Older Standard (superseded by this standard) | GB 50019-2003 | | Quoted Standard | GB 50016; GB 50028; GB 50041; GB 50116; GB 50126; GB 50243; GB/T 4200; GB/T 1576; GB/T 8175; GB/T 14294; GB/T 14295; GB 16423; GB 16297; GB 17167; GB/T 18049; GB 19576; GB/T 20841; GB/T 29044; JG/T 286 | | Regulation (derived from) | Ministry of Housing and Urban-Rural Development Announcement No.822 | | Summary | This standard is applicable to the heating, ventilation and air conditioning design of industrial buildings and structures newly built, expanded and remodeled. This standard does not apply to heating, ventilation and air conditioning design of buildings, clean rooms and temporary buildings with special applications, special cleaning and special protection requirements. |
GB 50019-2015 English name.Design code for heating ventilation and air conditioning of industrial buildings
1 General
1.0.1 This specification is formulated for industrial enterprises to improve working conditions, increase labor productivity, ensure product quality and personal safety, adopt advanced technology in heating, ventilation and air conditioning design, rationally utilize and save energy and resources, and protect the environment.
1.0.2 This code is applicable to the heating, ventilation and air conditioning design of new, expanded and reconstructed industrial buildings and structures. This specification does not apply to the heating, ventilation and air conditioning design of buildings with special purposes, special purification and special protection requirements, clean workshops and temporary buildings.
1.0.3 The heating, ventilation and air conditioning design scheme should be based on the requirements of the production process, the purpose and function of the building, the use requirements, the composition characteristics of the cooling and heating loads, the environmental conditions, and the energy status, combined with the current national health, safety, energy saving, and environmental protection. The principles and policies, etc., will be determined through comprehensive technical and economic comparisons in conjunction with relevant majors. New technologies, new processes, new equipment, and new materials should be adopted in the design.
1.0.4 In the design of heating, ventilation and air conditioning, the construction and acceptance requirements and the relevant construction and acceptance specifications that should be implemented should be specified. When there are special requirements for construction and acceptance, it shall be stated in the design documents.
1.0.5 The heating, ventilation and air conditioning design of industrial buildings shall not only comply with this specification, but also comply with the current relevant national standards.
2 terms
2.0.1 Industrial building
A collective term for production plants, warehouses, public auxiliary buildings, and living and administrative auxiliary buildings.
2.0.2 activity area activity area
This code specifically refers to the activity area of people in the building, and generally refers to the space within 3m from the ground, floor or operating platform.
2.0.3 work site work site
Posts or work places where personnel often or regularly stay for professional activities or production management.
2.0.4 Explosive gas atmosphere explosive gas atmosphere
Under atmospheric conditions, a mixture of gas, vapor or mist combustible substances and air, after ignition in the mixture, the combustion will spread throughout the environment of the unburned mixture.
2.0.5 dry-type collection
The collected dust or smoke is in a dry state, and the dust removal method does not increase the moisture content.
2.0.6 wet separation
The dust removal method in which the collected dust or smoke is in the form of mud.
2.0.7 Technological air conditioning industrial air conditioning system
Refers to the air conditioning system that mainly meets the requirements of the production process, supplemented by personnel comfort, and has high requirements for indoor temperature, humidity, and cleanliness.
2.0.8 comfort air conditioning
The air conditioner is set up to meet the needs of people's work and life.
2.0.9 zoning two-pipe water system
According to the load characteristics of the building, the air-conditioning waterway is divided into two two-pipeline systems for cold water and hot and cold water.
2.0.10 Two fluid humidification two fluid humidification
A technology that uses compressed air to atomize water and use fine water mist to humidify the air.
2.0.11 mine air conditioning mine air conditioning
In mines in severe cold and cold areas, in order to prevent freezing of the wellhead in winter or to maintain a certain ambient temperature on the working surface, the technology of heating the mine inlet air; and in hot or deep wells with high original rock temperature, in order to maintain a certain temperature Ambient temperature, artificial refrigeration and air-conditioning cooling technology for mines.
3 basic rules
3.0.1 The thermal comfort evaluation of the indoor environment of a building shall comply with the relevant provisions of the current national standard "Measurement of PMV and PPD Indexes in Moderate Thermal Environments and Regulations on Thermal Comfort Conditions" GB/T 18049, and the estimated average thermal sensation index (PMV) value should be greater than or equal to -1, and should be less than or equal to 1, and the value of the percentage of predicted unsatisfactory (PPD) should be less than or equal to 27%.
3.0.2 Heat insulation and cooling measures should be taken in high-temperature workplaces. High-temperature workplaces should comply with the relevant provisions of the current national standard "Classification of High-temperature Work" GB/T 4200, and the working environment should be classified and evaluated.
3.0.3 Heating, ventilation and air conditioning equipment should be selected according to the design working conditions.
3.0.4 In the design of heating, ventilation and air-conditioning systems, necessary space for installation, operation and maintenance of equipment, pipes and fittings shall be reserved, and holes for installation and maintenance shall be reserved in the building design. For large equipment and pipelines, transportation channels and lifting facilities should be provided.
3.0.5 In the design of heating, ventilation and air conditioning, safety protection measures should be taken for equipment and pipelines that may cause human injury
3.0.6 For projects located in earthquake areas or collapsible loess areas, anti-seismic and anti-subsidence measures should be taken in the design of heating, ventilation and air conditioning as required.
3.0.7 The water quality of the heating and air-conditioning system shall comply with the relevant provisions of the current national standard "Water Quality of Industrial Boilers" GB/T 1576 or "Water Quality of Heating and Air-Conditioning Systems" GB/T 29044.
3.0.8 Ventilation, air-conditioning and refrigeration equipment shall be equipped with backup equipment under the following circumstances.
1 Anti-virus and explosion-proof ventilation equipment, when the equipment stops running will cause safety accidents, or when the equipment is only allowed to stop running for a short time;
2 Ventilation, air-conditioning and refrigeration equipment, if the equipment stops running, it will cause abnormal operation of the process system in the burdened area, and will cause economic losses or even accidents, when the damage is serious.
3.0.9 Steam condensate should be recycled.
3.0.10 When the technical and economic conditions are reasonable for heating, ventilation and air-conditioning systems, waste heat should be recovered.
3.0.11 For heating, ventilation, and air-conditioning water system equipment, pipes and their components, the working pressure shall not exceed the allowable pressure.
4 Indoor and outdoor design calculation parameters
4.1 Design parameters of indoor air
4.1.1 The indoor design temperature in winter shall be adopted according to the purpose of the building, and shall comply with the following regulations.
1 The design temperature of the working places of production plants, warehouses and public auxiliary buildings shall be determined according to the labor intensity, and shall meet the following requirements.
1) 18°C-21°C for light labor, 16°C-18°C for moderate labor, 14°C-16°C for heavy labor, and 12°C-14°C for extremely heavy labor;
2) When the area occupied by each worker is greater than 50㎡, the design temperature of the workplace can be reduced to 10°C for light labor, 7°C for medium labor, and 5°C for heavy labor.
2 The indoor temperature of auxiliary rooms of living and administrative auxiliary buildings, production plants, warehouses and public auxiliary buildings shall meet the following requirements.
1) Bathrooms and changing rooms should not be lower than 25°C;
2) Offices, lounges, and canteens should not be lower than 18°C;
3) Washrooms and toilets should not be lower than 14°C.
3 When the production process has requirements on the temperature and humidity of the plant, the interior design temperature shall be determined according to the process requirements.
4 When radiant heating is used, the indoor design temperature may be 2°C to 3°C lower than the value specified in Clause 1 to Clause 3 of this article.
5 When only indoor anti-freezing is required for production plants, warehouses and public auxiliary buildings in severe cold and cold regions, the indoor anti-freezing design temperature should be 5°C.
4.1.2 For buildings equipped with heating, the average wind speed in the indoor activity area in winter shall meet the following requirements.
1 For production plants, when the indoor heat dissipation is less than 23W/m³, it should not be greater than 0.3m/s; when the indoor heat dissipation is greater than or equal to 23W/m³, it should not be greater than 0.5m/s;
2 Public auxiliary buildings should not exceed 0.3m/s.
4.1.3 The air-conditioning interior design parameters shall meet the following requirements.
1 The temperature and humidity base and its allowable fluctuation range of technological air-conditioning rooms shall be determined according to technological needs and hygienic requirements. The wind speed in the activity area should not be greater than 0.3m/s in winter, and should be 0.2m/s to 0.5m/s in summer; when the indoor temperature is higher than 30°C, it can be greater than 0.5m/s.
2 The indoor design parameters of comfort air conditioning should meet the requirements in Table 4.1.3.
Table 4.1.3 Air Conditioning Interior Design Parameters
4.1.4 When there is no special requirement for the process, the temperature of the working place of the production plant in summer can be designed according to the calculated temperature outside the ventilation room in summer and the allowable maximum temperature difference from the working place, and shall not exceed the provisions in Table 4.1.4.
Table 4.1.4 Temperature of working place in summer (℃)
4.1.5 The upper limit of the air temperature under different relative humidity in the production plant shall comply with the provisions in Table 4.1.5.
Table 4.1.5 Upper limit of air temperature in different relative humidity of production workshop
4.1.6 Heat insulation and cooling measures shall be taken in high temperature and strong heat radiation workplaces, and shall comply with the following regulations.
1 The average surface temperature of the high-temperature ground or high-temperature wall panels where personnel often stay or stay close to should not be greater than 40°C, and the instantaneous maximum temperature should not be greater than 60°C.
2 A rest room should be set up near the high temperature work area. The temperature of the lounge in summer should be 26°C to 30°C.
3 Heat insulation measures shall be taken in the special high-temperature operation area, the heat radiation intensity shall be less than 700W/㎡, and the indoor temperature shall not be greater than 28°C.
4.1.7 When the local air supply system is adopted in the workplace with high heat radiation intensity, the temperature and average wind speed of the workplace shall meet the requirements in Table 4.1.7.
Table 4.1.7 Temperature and average wind speed at the workplace
Note. 1.For light labor, the higher value in the table should be used for temperature, and the lower value for wind speed should be used; for heavy labor, the lower value should be used for temperature, and the higher value for wind speed should be used. For medium labor, the data can be inserted according to law to determine.
2 The temperature of the summer workplace in the table can be increased by 2°C for areas with hot summer and cold winter or hot summer and warm winter, and can be reduced by 2°C for areas where the average temperature of the hottest month over the years is less than 25°C.
4.1.8 The indoor air quality of industrial buildings shall comply with the current national regulations on indoor air quality standards and occupational health standards.
4.1.9 The fresh air volume per person shall be guaranteed not less than 30m³/h in industrial buildings.
4.2 Calculation parameters of outdoor air
4.2.1 The calculated temperature outside the heating area shall adopt the annual average daily temperature which is not guaranteed for 5 days per year.
4.2.2 The calculated outdoor temperature for winter ventilation shall adopt the average value of the average monthly temperature of the coldest month over the years.
4.2.3 The calculated outdoor temperature of air conditioning in winter shall adopt the daily average temperature which is not guaranteed for 1 day every year.
4.2.4 The outdoor relative humidity of air conditioning in winter shall be calculated based on the average relative humidity of the coldest month over the years.
4.2.5 The outdoor dry bulb temperature of air conditioning in summer shall be calculated by using the annual dry bulb temperature which is not guaranteed for 50 hours on average every year.
4.2.6 The outdoor calculation of the wet bulb temperature for air conditioning in summer shall adopt the average wet bulb temperature that is not guaranteed for 50 hours per year over the years.
4.2.7 The calculated outdoor temperature for ventilation in summer shall adopt the average temperature at 14.00 of the hottest month over the years.
4.2.8 The calculation of relative humidity outdoors for ventilation in summer shall adopt the average value of the average relative humidity at 14 o'clock in the hottest month over the years.
4.2.9 The daily average temperature outside the summer air-conditioning unit shall be calculated using the daily average temperature that is not guaranteed for 5 days per year.
4.2.10 The hourly temperature calculated outside the summer air conditioning can be determined according to the following formula.
Hourly temperature calculation formula
In the formula. tsh - outdoor calculation hourly temperature (°C);
twp——calculated daily average temperature outside air conditioning in summer (°C), adopted according to Article 4.2.9 of this code;
β——hourly variation coefficient of outdoor temperature, adopted according to Table 4.2.10;
△tr—the average daily difference in outdoor calculation in summer;
twg——the calculated dry bulb temperature (°C) of the air-conditioning outdoor in summer, adopted according to Article 4.2.5 of this code.
Table 4.2.10 Hourly variation coefficient of outdoor temperature
4.2.11 When the indoor temperature and humidity need to be guaranteed throughout the year, the outdoor calculation parameters of the air conditioning shall be determined separately.
4.2.12 The adoption of outdoor average wind speed shall comply with the following regulations.
1 The average outdoor wind speed in winter shall be the average of the monthly average wind speeds of the coldest three months of the year.
2 The average wind speed of the most wind direction outdoors in winter shall be the average of the monthly average wind speed of the coldest 3 months with the most wind direction (except calm wind).
3 The average outdoor wind speed in summer shall be the average of the average wind speeds of the three hottest months of the year.
4.2.13 The maximum wind direction and its frequency shall meet the following requirements.
1 The maximum wind direction and its frequency in winter shall be the maximum wind direction and its average frequency of the coldest three months of the year;
2 The maximum wind direction and its frequency in summer shall be the maximum wind direction and its average frequency of the hottest 3 months of the year;
The maximum wind direction and its frequency in 3 years shall be the maximum wind direction and its average frequency over the years.
4.2.14 The percentage of sunshine in winter shall be the average value of the average sunshine percentage of each month in the coldest three months of the year.
4.2.15 The use of outdoor atmospheric pressure shall comply with the following regulations.
1 The outdoor atmospheric pressure in winter shall be the average value of the average atmospheric pressure of the coldest three months of the year;
2 The outdoor atmospheric pressure in summer shall be the average of the average atmospheric pressure of the three hottest months of the year.
4.2.16 The number of days of heating period used for design calculation and the selection of heating outdoor critical temperature shall meet the following requirements.
1 The number of days in the heating period for design calculation shall be determined according to the total number of days in which the daily average temperature is stably lower than or equal to the critical temperature outside the heating area;
2 The critical outdoor temperature for heating in industrial buildings should be 5°C.
4.2.17 The extreme maximum temperature shall be the annual extreme maximum temperature.
4.2.18 The extreme minimum temperature shall be the annual extreme minimum temperature.
4.2.19 The average extreme maximum temperature over the years shall be the average value of the extreme maximum temperature over the years.
4.2.20 The average extreme minimum temperature over the years shall be the average value of the extreme minimum temperature over the years.
4.2.21 The minimum daily average temperature over the years shall be the lowest value among the average daily temperatures over the years.
4.2.22 The average relative humidity of the hottest month over the years shall be the average relative humidity of the month with the highest average monthly temperature over the years.
4.2.23 The hourly calculated enthalpy value of outdoor air conditioning in summer can adopt the air enthalpy value that does not guarantee 7h per year on average at 24 time points.
4.2.24 The statistical year of outdoor calculation parameters should be nearly 30 years. If it is less than 30 years, it should be used according to the actual year, but it should not be less than 10 years; if it is less than 10 years, the statistical results should be revised.
4.2.25 The outdoor air calculation parameters for design shall be selected from meteorological stations in Appendix A of this specification that are close to the geographical and climatic conditions of the construction site. When really necessary, the outdoor meteorological parameters should be investigated by themselves, and the outdoor air calculation parameters for design should be formed according to the statistical methods determined in Articles 4.2.1 to 4.2.24 of this code. When the basic observation data does not meet the requirements for use, the outdoor calculation parameters in winter and summer can be determined according to the simplified statistical method listed in Appendix B of this specification.
4.3 Summer solar irradiance
4.3.1 The solar irradiance in summer should be determined according to the solar declination on July 21 according to the local geographic latitude, atmospheric transparency and atmospheric pressure.
4.3.2 The total solar irradiance of buildings facing the vertical and horizontal planes can be adopted according to Appendix C of this code.
4.3.3 The direct solar irradiance and diffuse irradiance through the standard window glass facing the vertical and horizontal planes of the building can be adopted according to Appendix D of this code.
4.3.4 When using Appendix C and Appendix D of this code, the local atmospheric transparency level shall be determined according to Appendix E of this code and summer atmospheric pressure according to Table 4.3.4.
Table 4.3.4 Atmospheric Transparency Grades
5 heating
5.1 General provisions
5.1.1 The choice of heating method should be determined through technical and economic comparison according to the function and scale of the building, the meteorological conditions, energy conditions, energy policies, environmental protection and other requirements of the area.
5.1.2 Central heating should be adopted in areas where the number of days with a stable daily average temperature lower than or equal to 5°C over the years is greater than or equal to 90 days.
5.1.3 In areas that meet one of the following conditions, central heating can be used when waste heat is available or economic conditions permit.
1 The number of days with the daily average temperature stably lower than or equal to 5°C over the years is 60d~89d;
2 The number of days with the daily average temperature stably lower than or equal to 5°C is less than 60 days, but the number of days with the annual average temperature stable lower than or equal to 8°C is greater than or equal to 75 days.
5.1.4 For industrial buildings in severe cold regions and cold regions, when the indoor temperature needs to be kept above 0°C during non-working hours or during periods of interruption of use, and the use of room heat storage cannot meet the requirements, the on-duty heating should be set at 5°C. When the process or conditions of use have special requirements, the indoor temperature to be maintained for on-duty heating can be determined separately as needed.
5.1.5 For industrial buildings located in central heating areas, if the process has no special requirements on indoor temperature, and the building area occupied by each worker exceeds 100 m2, local heating should be installed at the fixed working place, and heating should be installed when the working place is not fixed. room.
5.1.6 For buildings with comprehensive heating except for external windows, balcony doors and skylights, the minimum heat transfer resistance of the envelope structure shall not be less than the value calculated according to the following formula.
Minimum heat transfer resistance calculation formula
In the formula. Ro, min——the minimum heat transfer resistance of the enclosure structure (m²·℃/W);
tn——Indoor calculated temperature in winter (°C), adopted according to Section 4.1 and Table 5.1.6-1 of this code;
te——calculated outdoor temperature of enclosure structure in winter (°C), adopted according to Table 5.1.6-2;
α——Correction coefficient of temperature difference of enclosure structure, adopted according to Table 5.1.6-3;
△ty—the allowable temperature difference between the calculated indoor temperature and the inner surface temperature of the enclosure in winter (℃), adopted according to Table 5.1.6-4;
αn——Heat transfer coefficient of inner surface of enclosure structure [W/(㎡·℃)], adopted according to Table 5.1.6-5;
Rn——heat transfer resistance of the inner surface of the enclosure structure (㎡·℃/W), adopted according to Table 5.1.6-5;
k——Minimum heat transfer resistance correction coefficient, 0.95 for masonry walls, 0.60 for exterior doors, and 1 for others.
Table 5.1.6-1 Calculated indoor temperature in winter
Note. tn is the calculated indoor temperature in winter (°C), td is the temperature under the roof (°C), tg is the temperature at the working place (°C), tnp is the average indoor temperature (°C), and △th is the temperature gradient (°C/m), H is the room height (m).
Table 5.1.6-2 Calculated outdoor temperature te(°C) of enclosure structure in winter
Note. twn and te, min are the calculated temperature outside the heating and the average daily temperature (℃) of the cumulative low volume, respectively.
Table 5.1.6-3 Temperature difference correction coefficient α
Table 5.1.6-4 Allowable temperature difference △ty value (℃)
Note. 1.The distinction between dryness and humidity of indoor air should be determined according to table 5.1.6-6 according to indoor temperature and relative humidity.
2 The allowable temperature difference △ty value of the floor slab communicating with the outdoor air and the floor slab above the non-heated basement can be 2.5℃.
3 tn is the calculated indoor temperature in winter, and t1 is the dew point temperature (°C) under the calculated indoor temperature and relative humidity.
Table 5.1.6-5 Inner surface heat transfer coefficient αn and heat transfer resistance Rn
Note. h is the rib height (m), s is the clear distance between ribs (m).
Table 5.1.6-6 Classification of Indoor Air Dryness and Humidity
5.1.7 The heating medium of the central heating system shall be determined through technical and economical comparison according to the building’s use, heating conditions and local climate characteristics, and shall meet the following requirements.
1 When the factory area only uses heat for heating or mainly uses heat for heating, hot water should be used as the heat medium;
2 When the heat supply in the factory area is mainly steam for technology, steam can be used as heating medium for production plants, warehouses and public auxiliary buildings, and hot water should be used for living and administrative auxiliary buildings;
3 When using waste heat or renewable energy for heating, the heat medium and its parameters can be determined according to specific conditions;
4 The heat medium of the hot water radiant heating system shall meet the requirements in Section 5.4 of this code.
5.2 Heat load
5.2.1 The heat load of the heating and ventilation system in winter shall be determined according to the following heat consumption and heat gain of the building. Infrequent heat dissipation may not be calculated. For frequent and unstable heat dissipation, an hourly average value should be used.
1 Heat consumption of the enclosure structure;
2 Heat consumption of heating the cold air that infiltrates into the room through the gap of doors and windows;
3 Heat consumption for heating cold air intruded by doors, holes and adjacent rooms;
4 Heat consumption of water evaporation;
5 Heat consumption for heating cold materials brought in from the outside and transport vehicles;
6 Ventilation heat consumption;
7 Heat dissipation of process equipment in the minimum load class;
8 Heat dissipation from heat pipes and other hot surfaces;
9 heat dissipation of hot material;
10 Heat lost or gained through other means.
5.2.2 The heat consumption of the enclosure structure shall include basic heat consumption and additional heat consumption.
5.2.3 The basic heat consumption of the enclosure structure shall be calculated according to the following formula.
Calculation formula of basic heat consumption of enclosure structure
In the formula. Q——basic heat consumption of building envelope (W);
α——Correction coefficient of temperature difference of enclosure structure, adopted according to Table 5.1.6-3 of this code;
F——area of enclosure structure (㎡);
K——average heat transfer coefficient of enclosure structure [W/(㎡·℃)], calculated according to the formula (5.2.4) of this code;
tn—calculated temperature in the heating room (°C);
twn——calculated temperature outside heating (℃).
5.2.4 The average heat transfer coefficient of the enclosure structure shall be calculated according to the following formula.
Calculation formula of average heat transfer coefficient of enclosure structure
In the formula. K——average heat transfer coefficient of enclosure structure [W/(㎡·℃)];
αn—the heat transfer coefficient of the inner surface of the enclosure structure [W/(㎡·℃)], adopted according to Table 5.1.6-5 of this code;
αw——Heat transfer coefficient of outer surface of enclosure structure [W/(㎡·℃)), adopted according to Table 5.2.4-1;
δ——The material thickness of each layer of the main section of the enclosure structure (m);
λ——The thermal conductivity of each layer of the main section of the enclosure structure [W/(m·℃)];
αλ——correction coefficient of material thermal conductivity, adopted according to Table 5.2.4-2;
Rk——the thermal resistance of the closed air space of the main section (㎡·℃/W), adopted according to Table 5.2.4-3;
∮——The correction coefficient for the heat transfer coefficient of the main section considering the influence of the thermal bridge.
Table 5.2.4-1 External surface heat transfer coefficient αw and heat transfer resistance Rw values
Table 5.2.4-2 Correction coefficient αλ for material thermal conductivity
Table 5.2.4-3 Thermal resistance value Rk of closed air interlayer (m2·℃/W)
5.2.5 When the temperature difference with the adjacent room is greater than or equal to 5°C, the heat transfer through the partition wall or floor should be calculated. If the temperature difference with the adjacent room is less than 5°C, but the heat transfer through the partition wall and floor is greater than 10% of the heat load of the room, this heat transfer should be included in the heat load of the room.
5.2.6 The additional heat consumption of the enclosure structure shall be determined according to its percentage of the basic heat consumption. The selection of each additional (or correction) percentage should meet the following requirements.
1 The heat consumption orientation correction rate of the enclosure structure should be selected according to the local winter sunshine rate, irradiance, building use and shading, etc., and should meet the following requirements.
1) North, northeast, west...
......
UDC
NATIONAL STANDARD
OF THE PEOPLE'S REPUBLIC OF CIßNA
Code for Design ofHeating Ventilation and
Air Conditioning
Beijing 2003
NOTICE
Preface
111 aιcordance with Notice for Issuing plan of Establishment and Revisron of 1998
Engineering Construction National Standard Ìn [1998] Document No244, Chilia Nonferrous
Engineering and Research Tnstitute had revÎsed Code 岛r dcsign of heating, venti1ation and aír
condition (OB1 19-87) as a revision terun composed with some experts from design and research
ínvestigation and summarizaüon of experience and resea.rch result, and drawn some lessons from
similar content of foreign countries, consulted opiníolls of ex严rts and discussed some specitìc
final definitìon of this st也ldard.
The ∞de consists of9 chapters and 9 appendixes including general introduction , glossaries,
臼lculation parameters of indoors 佣d out d, ∞rs, heatîng, vcntilation air conditioning, heatlcold
source of alr conditioning, monitorìng and control, sound mu汗ling and vibratÌon insulation.
τhe content newly revised and increased in this code is
一 , Newly-added requirement for indoor comforr. air quality and fresh indoors aÌl二
兰, Newly-added regulation for heating areas division,
四, NeWly..added safety requrrement regulation. forwol'k-shop.of ha.τmful叩a'ud toxÏc'spradttCÍ;;
五, Newly~added sectíon of accid圳在ventiLat1on.
ï\ , To 臼ncel fire-fightîng and explosìoll preve以ion added .to other clauses ofventílatioll.
七, Newly侧added requírementfor buildings with cei1tral AC and civil buHdings w地 natural
ventHation.
八, AI1-round revísion forcontent ofaír. cond.itioning 'and.V'MÍable. aÌl'~ volume.system;'low
te-mpt\r聋.tUì'C" V础.tîfilti.Óñ也萨拉rrtr, .翠litTA.@~~u施拉州.ith.'W3X放blefre食堂gernnt 丑聪rh臼lret拟ni暗飞system兰 J 二 . - 一
抽dw位'F Sy$t~lÏl 'of AC were addeq
九, Ov~1l revision fo1' heat and 'cold source of AC with adding of design regulation for
he在ling pUl吨, cold reservation. beat reserv~tîon, he.at exchange device. 在~ew regulatÎon is added
for cooling watet (Û AC.
十, NeWly 且added design requiremeot for direçt垃, ... fitet;l Hthìum brorilide abso.rption water
chHler...(hea阳〉
十一, AutOlllätlc cotrttol i5 chàt)ge注 to MöiÛtòrl.岱rg ànd Control the reqllÌremen.t for
monitoringand control hea.伽恕, v, 四tìlationÁC systém and smog exhausting ..ìs revised and added
十ι兰, N~wly addëd regulatiön for design öf vibtatÎön control and th.e∞ntroJ rëqÛlrement for
outdoor eqliípment nQíse.
十二, Cåncëlëd Outciöbrs C1 Î!n.at告 Parameter Sheeì; 总抗战d, Hea.ting VebtH íl.tlon and Air
Conditioning Climate Jnforma.tion Collection is publi~hed.
Ttte regul就Ians in this code m!liked with black le'tters as a mandatory regula,tiofl must he
implementeð...~
The maridatocy Tegülatrons iri this cOde shål1 be explained by Minìs往y .pfCoris货uctìOll and
China Nonferrøus 1lìdllS'try ltiStit白 wiU be j臼 th;町'ged òftout忧 Wotk曹And . Chiha N ö!1ferrous
Engineerìng anò Rèseatêh InstÎttite' wíIl be teSpönsible for the expfanation ofdetailed techríoloID巳
Declaration By 真1.inistry of Construction PromuJgation of
National Standard forCode for design of hcati l1g, ventì1ation
and air conditioll
在lìs is hcre如Y to sanction Code for désign of h邸ting ventilation and air conditÎon as a
national standard wîth number GB50019-2003, bcing executed from April 1 抖, 2004, and the
4.8 .1 7, 4.9.1, 5小10, 5.1.12, 5.3.3, 5.3 .4(1) (2), 5.3.5, 5.3.6, 5.3 .12. 5.3 .14, 5.4 .6, 5.6.10,
execrttéd strictly. The foñnét Cöde for d路ign 'of heating, venti!ation aiid air cöòdition as a natíonal
standard GBJ 19-87 and No.26 Dedåí'atio'n去001 St拍dard whh PartiaJ Revisionls abolished
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Mi就iStcyofCω.$.tJ'tiéÛnu ;of钱ePeople!sl主~p", blìc~f;q刷刷
N~军昏mb窑t.i'h 2003
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. uring t.he performance of this code, please summarize work experienc巳 and accumulation of
i.nformatìon and 1呻onsc suggestioo to Heating and Ventilatíon Code Execution (ì roup 肘...12,
Fuxing Road , ßeijing Postcode 100038) China Nonferrotts εng i neeri ng and 只esearch J l1 stitute 1"01'
more rcference of tùrther r巳vìsion
丁heηame li sl of editors.
Edìtors. China Nonferrous Engineering and Research lnslilute
Attendcd by (ordcl'c!Ì witlt the chapters sequence).
China Dìsease Preventìon 30d Control C巳nter Envíronment and Healthy
Product Safety lnstitute China Architecrure Design & R巳search Group
China Academy ofMelcorology Scicnce
China Northeasl Building Dωign & Research lnstitute
Middle and Southern Universíty
Harbin Nor01a] University
CHINAAERONAUTICALPROJECT & DESJGN INSTITUTE
North Chìna Power Engineeríng (Beíjing) Co" Ltd
Ton凶 i Unìversity
China Northwest Building Design & Research Institute
East China Architectural Design & Research lnstitute
Guizhou Provincíal Architectural Design &R巳search Institute
Beijing Archìtectural Design &Research Institute ;m.
Shanghai lnstitute OfMechanical & Electrical Engineeríng
Central SQuth Architectural D巳sign Institute
Qinghua University
China Architeclw‘é Dcsign é远只esearch Gr0tlp 1\(" l n百títHI .;
Beìjing Greentech Environment Group
ALAS lnsulation Material (Guangzhou) Co., Ltd
Hangzhou Huadian Envíronment Engineering Company Ltd.
Drafted by(to be ordered with chapter sequence).
Zhang Kesong Zhou Lvjun LuYaoqing Dai Zízhu Zhu Ruizhao
Li乡efei Fang Jia.< ;heng Díng Lixing Dong Chongcheng Zhao Jibao
Wei Zhanhe D∞g Jilin Lí Qiangmin Ma Weìjun Sun Yanxun
Sun Minshcng Zhou Zuyi Cai Lude Zhao Qingzhu Wang Zhizhong
Jiangγi Geng Xiaoyin . Luo Ying
旦'
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.世置?
Contents
1 General principle ..., ...1
2 Glossary ..., ...• ...2
3 CaJc ulalion 0 1' indour and llutdoor pararnet巳r ...a 川..._...4
3. 1 Calculation of indoor ai r parametcr ...‘...4
3.2 Calculation paramet巳r for outdoor air... h ‘... 5
3.3 SUllshine radiation degre巳 in sum l1lcr ..._...7
4 Ileating ... _ ... u..._... , ... -...8
4.1 Gcnerai rcgulation ...8
4.2 Heat load崎... --... 12
4.3 日eatlng with heat radiators ... ‘ ...~ ... r. ~ ..."... ' ...尊 ...‘...~..., ..., . ~...14
4 .4 Radiatìon heating with hot water ...‘..."...~... ‘ 15
4.5 . Gas i nfral它d radiation heatinQ ... 二... 17 e .
4.6 H巳atì口g 飞vith hot aìr and hot air cur1.ain ...‘... 18
4.7 El巳ctrîc heating 山..."...‘... ~ ... 20
4..8 Pipe!ine for heating ...~... ' ~ ' "'' ' ' ' ' ' ' . ~ ... -..."...20
4.9 H巳at gauge for hot water h臼ting for individual residence ...22
5 Ventilation... 24
5.2 Natura1 ventilation ...~...~...岖... 25
5.3 M巳chanical ventilation ...自 ... 27
5.4 Accident ventilatiou ..." ... -...~...‘...~ ...29
5.5 Heat insulation and lowering oftemperature... ‘... 30
5.6 Dedust and purification ofharm负.11 gas ...~... 31
5.7 SeJection of equipment and installation...••.•••• .~...33
5.8 Air-duct and others ...‘..."...‘... ~...'...-0...34
6.1 General r陀eguωi恼ation .. 川..., 川...川...ω...'川...川...川...川...户...‘川...川... 川...川...川...川...-川...川...叫...'" ...川...川...川..., ...37
6.2 Load calculation ...,...0-...,... 39
6.4 Cold and hot water for AC and condensed water system ...45
6.5 Air distribution ...叮叮 ...口 ...47
6.6 Air treatment...湿...AOO...-...‘..., 49
7 Cold and Hot Sourcè for Air Conditioning...-... 51
7.1 General regl.l lation ...-... 51
7.2 Motor-operated cornpressìoJl type cold water unit ... 52
7.3 Heat p...
......
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