NB/T 10416-2020 English PDFUS$329.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. NB/T 10416-2020: (Code for installation and acceptance of air source heat pump central heating engineering) Status: Valid
Basic dataStandard ID: NB/T 10416-2020 (NB/T10416-2020)Description (Translated English): (Code for installation and acceptance of air source heat pump central heating engineering) Sector / Industry: Energy Industry Standard (Recommended) Classification of Chinese Standard: P46 Word Count Estimation: 14,147 Date of Issue: 2020-10-23 Date of Implementation: 2021-02-01 Regulation (derived from): National Energy Administration Announcement No. 5 of 2020 Issuing agency(ies): National Energy Administration NB/T 10416-2020: (Code for installation and acceptance of air source heat pump central heating engineering)---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Specification for installation and acceptance of central heating system of air-source heat pump Energy Industry Standards of the People's Republic of China Code for installation and acceptance of air source heat pump central heating engineering 2020-10-23 released 2021-02-01 implementation Issued by the National Energy Administration Table of contentsForeword...II 1 Scope...1 2 Normative references...1 3 Terms and definitions...1 4 General...2 5 Air source heat pump heat source station installation...2 6 Heat medium transmission pipe network installation...4 7 Antifreeze of equipment and pipe network...4 8 Indoor heating system installation...4 9 Electrical and monitoring system installation...5 10 Commissioning and acceptance...5 Appendix A (Informative) Project Quality Acceptance Record of the Sub-division of Air Source Heat Pump Central Heating Project (Installation of Air Source Heat Pump)...9 Appendix B (Informative) Sub-project quality acceptance record of air source heat pump central heating project...10 Appendix C (informative) Completion acceptance report of air source heat pump central heating project...11ForewordThis document starts from the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" grass. This document was proposed by the China Rural Energy Industry Association and the General Station of Agricultural Ecology and Resources Protection of the Ministry of Agriculture and Rural Affairs. This document is under the jurisdiction of the Energy Industry Rural Energy Standardization Technical Committee (NEA/TC8). This document is organized and drafted by the China Energy Conservation Association. Drafting organizations of this document. Zhejiang Zhongguang Electric Co., Ltd., Qingdao Economic and Technological Development Zone Haier Water Heater Co., Ltd., Saddle Mountain Bolang Thermal Energy Technology Co., Ltd., Guangdong Fenix Energy-saving Equipment Co., Ltd., Zhongjiayuan (Beijing) Testing and Certification Co., Ltd., Zhejiang Haowate Energy-saving Technology Co., Ltd., Zhuhai Gree Electric Appliance Co., Ltd., Zhejiang Yangfan Energy-saving Development Co., Ltd., Guangdong Midea HVAC Equipment Co., Ltd., Zhejiang Zhengli Shengneng Technology Co., Ltd., Foshan Nanhai Juteng Environmental Protection Equipment Co., Ltd., Zhejiang Chuangneng New Energy Source Co., Ltd., Hefei Royalstar Solar Co., Ltd., Shengchun New Energy Technology Co., Ltd., International Copper Association (China), Dalian Shengdingxin Industrial Co., Ltd., Hunan Ewa New Energy Technology Co., Ltd., Shanghai Hanzhong Precision Machinery Co., Ltd., Shenzhen McVee Air Conditioning Co., Ltd., Guangdong Juteng Environmental Protection Equipment Co., Ltd., Emerson Environmental Optimization Technology (Suzhou) Co., Ltd., Guizhou Green Card Energy Technology Industrial Co., Ltd., Shandong Alpur Energy-saving Equipment Co., Ltd. The main drafters of this document. Ding Bohui, Yang Lei, Wang Renhang, Lei Pengfei, Zhang Ziqi, Han Xia, He Guojun, Wang Kaifeng, Luo Mingwen, Huang Yuangong, Yang Haitao, Xia Qing, Zhang Huijun, Feng Zhixue, Zhao Hengyi, Hou Jianjun, Zhang Yaning, Deng Zhuang, Tang Jiangcheng, Gui Haiyan, Wang Xin Wen, Tong Guian, Wu Weiping, Cui Tao, Sun Jianliang. Code for installation and acceptance of air source heat pump central heating engineering1 ScopeThis document specifies the installation, commissioning and acceptance requirements for central heating projects using air source heat pumps as heat sources. This document is applicable to new construction and original system transformation of central heating projects using air source heat pumps as heat sources.2 Normative referencesThe contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated reference documents, Only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document file. GB/T 21362 Commercial or industrial and similar heat pump water heaters GB 22337 Noise Emission Standard for Social Living Environment GB/T 25127.1 Low ambient temperature air source heat pump (chiller) unit Part 1.Heat pumps for industrial or commercial use and similar purposes (Cold water) unit GB/T 29044-2012 Water quality of heating and air-conditioning system GB 50242-2002 Code for Acceptance of Construction Quality of Building Water Supply and Drainage and Heating Engineering GB 50243-2016 Ventilation and air-conditioning engineering construction quality acceptance code GB 50738-2011 Ventilation and air conditioning engineering construction code JGJ 142-2012 Radiant heating and cooling technical regulations NB/T 34067-2018 Air source heat pump hot water engineering construction and acceptance specification3 Terms and definitionsThe following terms and definitions defined in GB/T 21362 and GB/T 25127.1 apply to this document. 3.1 Air source heat pump heat source station Use air source heat pump to collect low-grade heat energy in the air, and improve its quality to be used for domestic heating, using water, aqueous solution or other The media is transported to the thermal station on the user side. 3.2 Cold island of installation site The low-temperature air discharged from the heating operation of the air source heat pump is sinking due to the high density or the short circuit of the inlet and outlet air at the installation site causes stagnation and accumulation. A mass of low-temperature cold air that cannot diffuse. 3.3 Circulating flow path With the water pump as the core, an independent circulating water flow path system composed of water pumps, pipes, water equipment and valve components. 3.4 Heat medium distribution The heat supplied by the heat source station is stored in the heat medium and distributed according to the needs of the user through the transmission pipe network, pumps and flow adjustment devices. often The heating medium is hot water or hot water solution. 3.5 Complete heating process The air-source heat pump central heating system runs from start-up until all the hot water participating in the operation in the system is heated to the set temperature and then automatically unloaded. Load the whole process of shutdown or standby.4 General4.1 The construction and acceptance of the air source heat pump central heating project shall comply with the approved design documents and the provisions of the contract. Engineering plan changes should be The design change notice or technical confirmation document of the design unit. 4.2 The construction unit and construction site should meet the requirements of 4.1 in NB/T 34067-2018. 4.3 The main materials and equipment used in the construction should have quality certificates, and the specifications and models should conform to the contract and design documents. The requirements and performance of parts should meet the requirements of national technical standards. The new technologies, new processes, new materials and new equipment adopted shall all have passed the special Documents that prove the acceptance of the technical appraisal. 4.4 All materials and equipment should be checked and accepted when they enter the site, and they should be checked and confirmed by the construction unit. 4.5 The load-bearing capacity of the foundation and foundation used for construction should be greater than 1.5 times the operating weight of the equipment, and the load-bearing capacity of supports, hangers and brackets should be More than 4 times the operating weight of the equipment. The production and construction requirements should meet the requirements of 7.1~7.4 in GB 50738-2011. 4.6 For the partially modified air source heat pump central heating system, the unmodified part should be cleaned and maintained, and the operating parameters and operating conditions should be cleaned and maintained. The matching part is equipped with conversion adjustment measures.5 Installation of air source heat pump heat source station5.1 Air source heat pump installation site 5.1.1 The surrounding environment of the air source heat pump installation site should meet the following requirements. a) No flammable gas leakage or strong corrosive gas circulation; b) No dust, oily smoke and other pollutants that can adsorb and stick to the heat exchanger of the equipment; c) No additional equipment that generates cold air; d) Atmospheric pressure and ambient air temperature meet the operating conditions of the equipment; e) There are no high-voltage power transmission and distribution facilities above; f) No strong magnetic field interference; g) The carrying capacity is greater than 1.5 times the operating weight of the heat source station; h) Within the protection range of lightning protection facilities. 5.1.2 The air circulation volume of the air source heat pump installation site should meet the requirements of the equipment's rated circulating air volume and the air diffusion requirements of the cold island of the installation site. Otherwise, the auxiliary heat source should be added according to the load gap. 5.1.3 The placement distance of air source heat pumps should meet the requirements of unit maintenance space, unit minimum air intake space and heat source station ventilation space. Advance When the wind space is insufficient or installed in a closed place, check whether the indoor supplementary heat meets the design heat load, and install diversion facilities if necessary. 5.1.4 When there are fallen leaves and catkins nearby, a protective net should be set up, and the effective ventilation area of the protective net should meet the air intake requirements. 5.1.5 The impact of heat source station noise on the surrounding environment shall comply with the provisions of GB 22337, and the corresponding seismic isolation and noise reduction measures shall not affect the heat source Ventilation capacity of the station. 5.1.6 Guardrails should be made around the equipment installation site of the heat source station, and eye-catching warning signs should be set on the outside of it. When the heat source station is installed on the ground, the guardrail There should be measures to prevent overturning. The guardrail should not affect the ventilation and routine maintenance of the heat source station. 5.2 Installation of air source heat pump 5.2.1 When the air source heat pump arrives on site, check whether the appearance is complete, whether the interface and the water-side heat exchanger are deformed and corroded. 5.2.2 The foundation or base of the air source heat pump should be a hollow structure or a pre-buried sewage channel, and the height should be greater than the local historical maximum snow thickness 300mm, and not less than 500mm. 5.2.3 When connecting the air source heat pump to the foundation, seismic isolation measures shall be provided, and the materials and construction techniques of the seismic isolation measures shall meet the design requirements. 5.2.4 When multiple air source heat pumps are installed centrally, the distance between the units and between the units and obstacles should meet the equipment maintenance and ventilation requirements. 5.2.5 The inlet and outlet of the air source heat pump and the pipes should be connected with soft joints, and the water outlet pipe of the unit should have a water flow switch and be linked with the unit. A filter with a mesh size of not less than 40 should be installed on the water inlet pipe, and valves of the same diameter should be installed on the inlet and outlet pipes. 5.2.6 The air source heat pump should automatically detect the temperature of the inlet and outlet water or install thermometers at the inlet and outlet. 5.2.7 When the length of the pipe connected to the air source heat pump exceeds 500mm, it shall be fixed separately. 5.2.8 The connection between the condensing and defrosting water drain pan of the air source heat pump and the condensing and defrosting water pipe should be tight and firm, and there should be no leakage in the water filling test. The drop from the bottom of the drain pan to the drain pipe should not be less than 100mm. 5.2.9 When installing the air-source heat pump air guiding system with multiple fans, a fan stop and backflow prevention device should be installed. The installation of the retrofit device should be fastened in place There is no looseness, there are anti-falling or anti-collapse measures, and it should have strong wind resistance and rain and snow resistance. Rain and snow should be automatically removed. 5.2.10 When the highest point of the unit is higher than the lightning protection facility of the building, a lightning protection facility that meets the requirements of 4.1.13 in NB/T 34067-2018 shall be installed. 5.2.11 All pipes, fittings and valves connected to the air source heat pump water system should be reserved for maintenance and operation. In addition to the needs The operating parts should be provided with necessary clearances for activities, and all heat preservation and protection treatments should be carried out. The design and construction of heat preservation and protection should comply with GB 50738-2011 in 13.1~13.3 and 13.5. 5.3 Discharge of condensation and defrosting water 5.3.1 The air source heat pump should be equipped with a condensing and defrosting water collection device, and the drain pan exposed to the air should be protected against dust, debris and freezing. 5.3.2 The condensing and defrosting water drain pipe and the water receiving tray adopt flexible joints, and the pipes are well insulated and heating cables should be installed. The heating tape should be isolated from the water, When installed in a drain pipe, the heating cable should be insulated, and sufficient drainage space should be reserved in the drain pipe. 5.3.3 The condensing and defrosting water pipeline should be laid with a downward flow direction and a slope greater than 1%. A vent pipe should be installed over 5m. The inner diameter of the vent pipe should be Not less than 1/4 of the main diameter of the condensing and defrosting water and not less than 15mm. The vent should be.200mm higher than the maximum snow thickness in local history, and Measures to prevent wind and snow backflow. 5.3.4 Condensation and defrosting water shall not freeze during the entire discharge process from collection to discharge to the designated location, and the pipeline drainage speed shall not be less than the condensation rate The rate of frost formation. 5.3.5 After the condensing and defrosting water pipeline is connected, a drainage test should be done before heat preservation, and then the pipeline heat preservation, corrosion protection and protection should be carried out. Drainage test for. a) Pour a certain amount of clean water into the water receiving pan of the air source heat pump unit within a short period of time, and the amount of water shall not overflow the water receiving device of the heat pump as the standard; b) Observe the drainage speed of the water accumulation device of each equipment, and check the dirty and blockage of the water receiving device; c) During the drainage process, there should be no leakage between the drainage pipe and the equipment interface and the connection of the drainage pipe, the vent hole should not overflow, and the pipeline should not be deformed; d) After the irrigation is stopped, the water in the pipeline can be quickly discharged to the designated location, and there should be no water in the pipeline. 5.4 Heat medium distribution facilities 5.4.1 The heat storage device (such as the water storage tank) should be well insulated and installed firmly, and the circulation loops connected to it should have the ability to shut off or adjust. And can observe parameters such as temperature and pressure. 5.4.2 The pressure gauge, thermometer and visual level gauge of the water storage tank should be installed in a place convenient for observation. The exhaust valve should be installed at the highest point of the water storage tank. The sewage valve should be installed at the lowest and easy-to-operate place of the water storage tank, the water inlet should be equipped with a filter according to the water quality, and the sewage pipe should be connected to the sewage system. 5.4.3 When the water storage tank is open, the water tank should be provided with a manhole, the height of the water tank is more than 1.5m, and a human ladder should be installed on both sides of the inner and outer sides, and the working liquid level of the water tank should be lower than There should be measures to prevent backflow at the highest heating point in the entire system, and measures for gas collection and exhaust should be provided at the highest point of the system. 5.4.4 Each circulation loop connected to the heat storage device should be marked with the purpose and pipeline flow direction. If the heat exchange equipment is used for connection, the installation of the heat exchange equipment should comply with Comply with the provisions of 10.5 in GB 50738-2011. 5.4.5 The distribution device should have the ability to regulate flow, temperature and pressure. When a primary pump is used, if the air source heat pump does not have the ability to adjust, Partial flow adjustment measures such as bypass valves should be installed between the inlet and outlet pipes. 5.4.6 The circulating water pump installed outdoors should be protected from rain, snow and freezing. Open system or backup pump... ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of NB/T 10416-2020_English be delivered?Answer: Upon your order, we will start to translate NB/T 10416-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of NB/T 10416-2020_English with my colleagues?Answer: Yes. The purchased PDF of NB/T 10416-2020_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. |
