|
US$599.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 29812-2013: [GB/T 29812-2013] Industrial-process control -- Safety of analyser houses
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 29812-2013 | English | 599 |
Add to Cart
|
4 days [Need to translate]
|
[GB/T 29812-2013] Industrial-process control -- Safety of analyser houses
| Valid |
GB 29812-2013
|
PDF similar to GB 29812-2013
Basic data | Standard ID | GB 29812-2013 (GB29812-2013) | | Description (Translated English) | [GB/T 29812-2013] Industrial-process control -- Safety of analyser houses | | Sector / Industry | National Standard | | Classification of Chinese Standard | N53 | | Classification of International Standard | 71.040.01 | | Word Count Estimation | 23,231 | | Quoted Standard | IEC 60079-16-1990 | | Adopted Standard | IEC 61285-2004, IDT | | Regulation (derived from) | National Standards Bulletin No. 22 of 2013 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the installation in the analysis hut (AH) in the process analyzer measurement system requirements for safe operation, in order to guard against fire, explosion and health hazards situations. The expansion of the contents of the IEC | GB 29812-2013: [GB/T 29812-2013] Industrial-process control -- Safety of analyser houses---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.
Industrial-process contro l.Safety of analyser houses
ICS 71.040.01
N53
National Standards of People's Republic of China
Industrial process control security analysis cabins
(IEC 61285.2004, IDT)
Published 2013-11-12
2014-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China issued
Foreword
All technical contents of this standard is mandatory.
This standard was drafted in accordance with rules GB/T 1.1-2009 given.
This standard uses translation method is equivalent to using IEC 61285.2004 "Safety of industrial process control analysis hut."
For ease of use, this standard made the following editorial changes.
--- classification 5.5.4.4 and 5.5.4.5 as 5.5.4.4.1 and 5.5.4.4.2, 5.5.4.4 supplement for the title;
--- the original text of individual editorial errors were corrected.
The standard proposed by China Machinery Industry Federation.
The standard measurement and control of the instruments Standardization Technical Committee Technical Committee (SAC/TC124/by the National Industrial Process
SC6) centralized.
Limited, Sichuan-Chongqing Analytical Instruments Co., Ltd., Shanghai Institute of Measurement and Testing Technology, Shanghai Electronics Co., scientific instruments, poly
Micron Technology (Hangzhou) Co., Ltd., Nanjing Analytical Instrument Factory Co., Ltd., Beijing North sub-Mai Hake Analytical Instruments Co., Ltd., Beijing Analysis
Institute instrument.
The main drafters. Ma Yajuan, Xu Jianping, Fang Peiji, Zhu Minghuai, Zhang Min, Wang Qiaomei, Wang Sen, Liu Hu, Qu Changhong, Lou Xingjun.
Introduction
Process for continuous analyzers and flow characteristics of the process medium is automatically measured, automatically sampling, unattended system design and dimension
Care less.
This standard specifies the minimum safety requirements typical analyzer house (AH) to be met. A variety of situations that may arise, through more stringent
The local grid, industry and enterprise standards requirements.
The measurement results transmitted continuously to the process controller, operating platform or recorded as a file. Process analyzer may be used.
---Environmental Analysis;
--- personnel protection;
--- protective equipment;
--- quality measurement/control;
--- control process (optimization means);
--- saving.
In the simplest case, the sensor is directly mounted in the analyzer test substance, no sample extracted. Other cases are from the primary medium stream
Sampling, then sent to an analyzer. The system may comprise a plurality of functions, for example.
--- sample extraction;
--- sample transfer;
--- sample processing;
--- emissions and/or recovering the sample stream;
--- common auxiliary substances and feed;
--- flow path switching;
--- automatic or manual calibration and verification system;
--- signal processing;
--- performance monitoring and control.
GB/T 19768-2005 given process performance analyzer sample processing system FIG.
Analyzer respective units may be installed in combination may be separately disposed. And a combination of analyzer systems have many advantages, they are integrated in the
One has more advantages. These advantages include.
--- reduce the cost of utilities and install signal cables;
--- protection of personnel and equipment and complex components in harsh environmental conditions;
--- maintenance facilities;
---Safety.
Analyzer can refer to a variety of standard design, and some are flameproof, some of which are intrinsically safe, some suitable areas for 2, some only for non-hazardous
Risk area, not all of the analyzer can meet every requirement.
Process devices typically include all areas. Area 0, Area 1, Area 2, and non-hazardous areas.
Analysis cabin location, the ventilation air source, and the analysis of the cabin area classification analyzer such as economic factors associated with the selection.
These factors include the distance the sampling point to the analysis region of the cabin, in which the cabin analysis, analysis from the cabin air to a non-hazardous gas source
Distance, and the cost of the analyzer adapted to analyze the classification of cabin area.
Industrial process control security analysis cabins
1 Scope
This standard specifies requirements for installation analysis cabin (AH) during the operation of the analyzer measurement system security, in order to take precautions against fire, explosion
And the occurrence of health hazards. The standard IEC 60079-16 expanded content, including an analysis of the cabin area 2, and applies to toxic
Qualitative damage (must follow the national standards related to toxic hazards).
This standard does not apply to the dust explosion-proof occasions.
Chapter 4 of the cabin and its location analysis in the process of connecting the device region.
Chapter 5 of the analyzer house design, construction and layout, not involving measuring system analyzer portion installed in other places, for example,
The sample processing chamber (SCR) or distribution chamber.
Chapter 6 provides for measures to reduce the risk of explosion cabin analysis, allowing the device is switched on and the case open in case of power supply
service.
NOTE. For most liquid, the main limitation is harmful to the human body vapor concentration should be below the explosive (flammable) limit (LEL) (see Chapter 7).
With n-pentane for example, the LEL is 1.4% or 14000 × 10-6, this concentration will immediately endanger human life and health. In 30min
By any person without the escape of any symptoms of injury or irreversible health effects of the maximum concentration of only 0.5%, or 5000 × 10-6.
The interior space is divided into Zone 1 means that the staff are not allowed to enter this area without wearing protective equipment such as respirators device
area. If the district will analyze the hut placed close to 1 means no staff in this area without wearing protective equipment.
Chapter 7 of the protective measures analyzed cabin personnel from substances harmful to health hazards.
2 Normative references
The following documents for the application of this document is essential. For dated references, only applies to the version dated paper
Pieces. For undated references, the latest edition (including any amendments) applies to this document.
IEC 60079-16.1990 Explosive Gas Atmospheres electrical equipment - Part 16. Analysis artificial ventilation hut
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Analyzer cabinet analysercabinet
Mounted analyzer single or multiple small closed cabinet. The door can be opened from the outside when the maintenance.
3.2
Analyzer shed analysershelter
One or more sides of the open structure and air can flow unimpeded nature, can be mounted inside a single or multiple analyzer. Analyzer Dimension
Repair is usually carried out under protection work shed.
3.3
Analysis hut analyserhouse; AH
A closed portion of the building or the building, a single or multiple installation process analyzer and auxiliary equipment. By the qualified personnel
Regular inspection process, usually with natural ventilation or forced ventilation. And maintenance analyzer indoors.
Note. This standard term "AH" range without regard to the configuration of the building structure, regardless of the room, cabinet, or buildings, or whether it is whole, or attached to other
Part of the building.
3.4
Sample processing chamber sampleconditioningroom; SCR
Analysis cabin (AH) spaced a separate room, there are the sample processing device, the sample material or auxiliary discharge apparatus.
3.5
Toxic substances toxicmaterial
Sucked from the ambient atmosphere substances harmful to health, not including the ambient atmosphere through the skin or esophageal adsorption uptake.
3.6
Security personnel safetyback-up care
Keep in touch with personnel in hazardous work environments, can help give extra help or support staff.
3.7
External and internal dangers externalandinternalhazards
There is a difference between the risk of explosion "external" and "internal." When the analysis hut built from the outside in the incoming combustible material, resulting
When analyzing hut flammable gases and vapors hazardous concentrations of place, the presence of external risk of explosion. When the sample analysis or secondary cabin
When the leakage of materials to produce a combustible mixture, there is an internal explosion hazard.
3.8
Lower Explosive Limit lowerexplosivelimit; LEL
Lower flammability limit lowerflammablelimit; LFL
The air concentration of flammable gas or vapor concentration below which, the atmosphere can not be formed explosion or fire.
3.9
Explosive gas atmospheres explosivegasatmosphere
Under atmospheric conditions, a mixture of flammable gas or vapor and air, after ignition, the combustion of unburned mixture rapidly throughout the entire
environment of.
3.10
Hazardous area hazardousarea
Large numbers of explosive gas atmosphere or sufficient quantity expected to occur in claim analyzer structure, installation and use of specialized prevention
Measures region (region including 0, 1 and Zone 2).
3.11
Non-hazardous area non-hazardousarea
The amount of explosive atmosphere is expected to occur is insufficient structural requirements, installation and use of the analyzer to take special precautions in the area.
3.12
Zone 0 zone0
Continuous or prolonged presence of an explosive atmosphere zone.
3.13
District 1 zone1
Under normal operating conditions, explosive atmosphere may be generated region.
3.14
2 zone zone2
Under normal operating conditions, the region not produce explosive atmosphere, or, if generated, is incidental, and there is only a very
Short period of time.
3.15
Flashpoint flashpoint
Under standard conditions, the liquid may be evaporated to produce a certain amount of liquid forming the lowest temperature of the combustible vapor/air mixture.
3.16
Ignition temperature ignitiontemperature (T-rating)
Flammable gas or vapor and air to form a mixture, the lowest temperature under conditions provided by the hot surface ignition.
4 Analysis of connections within the cabin and the position of the process device region
It should be analyzed to determine the location of the hut (AH) to consider the following factors.
4.1 Response Time
It should be estimated from the sampling point to the analyzer line and calculate the necessary flow rate to determine a time lag is generated, the sample flow rate and the loss
No suitable.
4.2 Utilities
It should be estimated for all utilities such as connection length of the air, steam, electrical, circuits and signals of the sample.
4.3 Security
4.3.1 Location
Analysis cabin (AH) to be disposed in the release of toxic or flammable source at a safe distance is not prone to accumulation of these substances
local.
4.3.2 Emergency channel
It should determine the withdrawal route, and kept clear, and towards the emergency channel to avoid the danger zone as much as possible.
4.3.3 Area Classification
Analysis cabin ventilation and air source internal security department or user management area classification process equipment should be determined.
4.3.4 danger Zhou Bian
Taking into account the sampling line analyzer or a possibility of danger in the analysis of any adjacent room or cabin.
4.4 Entrance
Maintenance personnel and supplies are required entrance, analyzer houses should be placed on the ground or the elevator entrance. Consideration should be given to heavy equipment such as
Cylinders and secure mobile analyzer/installation requirements, taking also into account the convenience of process equipment such as heat exchangers, such as maintenance.
5 cabins analysis of design, construction and layout
5.1 General
Depending on the type of the sample and the analyzer, the importance of the application and operating environment, the analyzer and the analyzer sampling systems require different protection
grade. When the building and maintenance requirements for this kind of work environment unfit, should provide analytical lodge such additional protection. Additional protection can be
Meet the instrument performance, and ease of maintenance.
Select a room depends on many factors such as.
--- analyzer classification and/or the region where the sampling system;
--- places range of environmental conditions, including temperature, rainfall, humidity, snow, wind, dust, sand, direct sunlight and corrosive gases;
Reliable, accurate and safe operation of a predetermined environmental conditions --- analyzer user;
During --- maintenance of equipment and personnel protection requirements;
--- system consisting of maintainability and accessibility requirements;
Process --- analysis regions where the cabin/environmental conditions (e.g., chemical or equipment loading, unloading and transport, noise, vibration, chemical
Leakage, etc.).
This chapter describes the analysis of a hazardous area of the cabin and/or placed in cabins Analysis combustible/toxic sample introduction. Those in
Analysis of non-hazardous area and the cabin is not flammable or toxic samples, service, or from a mixture of the calibration of the air introduced hazardous area
Just hut provisions analyzer accurate and reliable operation of the necessary environmental conditions.
5.2 General Requirements
This section specifies general requirements for the safe operation of the analyzer house, without regard to leaks or flammable substances (see Chapter 6) or substances hazardous to health
(See Chapter 7).
5.3 size and layout
Analysis cabin size analyzer and auxiliary equipment depending on the number, size and access requirements. Should consider all ventilation, and drainage system
Systems, spare parts storage, distribution system, on-site records. The minimum recommended space for the length and width of 2.5m, a high 2.3m, barrier-free minimum clear height
2.0m. We recommend leaving 30% of spare space for future supplementary equipment. Avoid ceiling, ducts and air circulation dead.
5.4 structural requirements
5.4.1 Materials of Construction
Construction material should have a refractory and anti-corrosion ability of the substance in contact therewith.
5.4.2 Wall
It should be determined such as antistatic, corrosion-resistant, weatherproof and fire site requirements, and then select the appropriate materials. If the device against a wall, the wall
Require appropriate reinforcement. Penetrate walls should be kept to a minimum, and use comply with the relevant structural and safety requirements (for example, water resistance, fire retardant properties,
Flame retardancy and mechanical strength, etc.) of suitable material sealed.
5.4.3 Ground and foundation
It should be non-porous surface, and having a tolerance of non-slip floor material may spill. Ground to be clean, for example, to consider light
Slight slope and drainage systems. If the surface water drainage system, drainage system should be no hindrance to the analysis hut, the liquid can be completely
discharge. Measures should be taken to prevent the ingress of liquid outside. These include higher ground, or setting it higher than the external stairs at the entrance
Or suitable ramp or bottom of the sealed cabin.
5.4.4 Door
Doors should open outwards and be self-closing. Doors should be installed "emergency escape lock" so that once locked from the inside to open. Need security on the door
Mounted crushing safety glass. If the main door inside and outside the export of obstacles need to be considered in the emergency exit door away from the main gate or the second set, for example, red
Hit escape board.
Note. When analyzing the lodge is part of the building, other security considerations more important.
5.4.5 Window
Unless the cabin is divided sealed and placed in non-hazardous area non-hazardous area, otherwise, all the windows of the cabin analysis should be tightened to prevent analysis
(Dangerous) vapor infiltration.
5.4.6 roof
Suitable roof designed to withstand loads (snow, equipment, people, etc.).
5.5 Equipment
5.5.1 Lighting
Emergency lights or lighting devices should be kept in operation. Minimum illumination shall meet the requirements of the relevant standards or work properly.
5.5.2 Communications
If the analysis can not be detected around the device sent from the security alert the cabin, to be received in the alarm analysis cabin features should be considered
Installation of a telephone to the place was on duty.
5.5.3 piping and valves
Under normal operating conditions, hut Analysis pipes, vessels and equipment, the opening should be avoided to prevent any leakage of dangerous substances to the analysis of small
house. Functional substance and a valve in the conduit should be clearly identified. Shutoff valve should be disposed outside the analyzer house. The exhaust gas should be collected in a closed system
Or delivered to the outside of the cabin analysis facilities. There is a fault in the case, all possible transport large quantities of hazardous substances into the cabin analysis
Line, and analysis from the analysis hut inlet apical cabins should have automatic shut off valve, throttle or restrictor means.
5.5.4 Utilities
5.5.4.1 the amount of dangerous goods
Auxiliary dangerous goods should be limited to the minimum amount needed to operate the analyzer system.
5.5.4.2 Hazards identification
Any place with a fire, explosion or unhealthy should be clearly labeled.
5.5.4.3 choking agents (e.g. nitrogen, carbon dioxide)
5.5.4.3.1 all cabin Analysis asphyxiant line connected analyzer house outside the pipeline should be installed or throttle limiting means limit
To meet the requirements made of the flow rate of the ventilation system.
5.5.4.3.2 cabin when the analysis memory potential risk of hypoxia (for example, backup instrument air with nitrogen), the analysis should Ann hut
Hypoxic air detector means, and a fault alarm safe human duty site and remote locations.
5.5.4.4 auxiliary storage of dangerous goods
5.5.4.4.1 dangerous goods shall be stored in the auxiliary outer cabin analysis.
5.5.4.4.2 If inevitable auxiliary gas reservoir or a high pressure gas cylinder of calibration gas in the analysis of the hut, the isolation should be stored in a continuous ventilation
A cabinet or directly to the station via pressure relief valve and the safety rupture disc is mounted on the cylinder in order to prevent high pressure gas cylinder caused by fire heat
The pressure rise. Be safely released from the safety rupture disc of the gas leaking outside the cabin analysis. Security measures can also be relevant qualifications sector
Shi carried out.
5.5.5 Fire Equipment
Suitable fire-fighting equipment should be placed at the door.
5.5.6 Ventilation
Installation of ventilation equipment for climate control, anti-corrosion, anti-suffocation, explosion-proof (see Chapter 6) and/or personal safety (see Chapter 7).
5.5.6.1 General
All ventilation air changes per hour should be no less than five times. Ventilation air source is preferably provided in the non-hazardous area, if this can not be achieved to
Seeking, in equipment suitable for analysis cabin zone 2 region, or worse, an air zone 2 may be used. Or one or intake port mounted
More combustible gas detector monitors, when the detected value is less than 20% LEL to stop ventilation.
Ventilation should be installed at the inlet of a dust filter.
5.5.6.2 Temperature
To ensure the safety performance monitoring equipment and alarm systems, analysis of the temperature in the cabin should be maintained at the recommended ranges.
5.6 Signage/Description/File
5.6.1 Entrance
Analysis paste at the inlet of the cabin type of marking signs indicate danger, allows only qualified staff access, including signage
Information analysis agency responsibility hut (name, department, phone number, etc.).
5.6.2 Alarm
If needed, where applicable, the analysis hut should produce the following safety-related on-site alarm and Indicators.
a) ventilation failure (purge and/or positive pressure ventilation);
b) the combustible gas (concentration exceeds 20% LEL);
c) toxic gas (concentration exceeds allowable limits);
d) hypoxia;
Note. the oxygen concentration must be maintained at over 18%, or statutory requirements.
e) fire or smoke;
f) releasing automatic fire extinguisher;
g) Gas/fire monitoring equipment malfunction.
Note 1. The relative density is determined hazardous flammable gas installation position and toxic gas detector. When the gas lighter is detected, the detector is placed in the house requires
Near the top, the gas detection heavier, placing the detector near the ground.
Note 2. The gas detector data record provides the basis indoor meets safety requirements.
Should generate an alarm in the following places.
a) Analysis hut conventional sound or visible light (e.g., strobe) alarm;
b) In the process of continuous manned place;
c) the inlet outside the cabin should provide analysis of toxic substances represent, choking agents and alarm lights lower explosive limit, and should be considered
Other alarm.
Note. It is recommended to set non-hazardous state indication signal.
5.6.3 Safety Regulations
Analysis cabin safety procedures as a file is placed in the apparent position of the room, the staff analysis in the cabin should receive adequate training.
5.6.4 Supplementary Data
The following items should be included in the file.
--- analysis and design data cabin ventilation system (eg, ventilation failure alarm set point);
--- gas detection system design information (e.g., measurement range, measurement component, alarm set points and corrective action);
--- All wiring and logic diagram of the alarm system on and off;
--- toxic exhaust system design process and data handling exhaust air pollution and under unstable conditions;
--- provide clear and understandable and accurate operation of the process of writing instructions (for example, filling material for the auxiliary personnel engaged in the daily work of Toxic Substances
Description of the container).
6 Explosion-proof cabin analysis
6.1 General
This chapter sets out the risk analysis of security requirements through the adoption of internal cabin ventilation and explosion protection systems to prevent the use of internal or external. this
In addition, also discussed ways to ensure the safety of the use of natural ventilation. Analyzer should also comply with other protective measures in the non-hazardous area operation, but
They are not included in this standard.
Assisted by the user to use protective measures, where appropriate.
Note. This standard is not supplied to the risk analysis and risk cabin combustibles within the combustion fuel or combustible exhaust conduit means to return, and therefore,
Whether analyzer is installed in the cabin analysis, flame arrester should be placed in the vicinity of the sampling point.
6.2 General requirements
6.2.1 Electrical equipment installed in the cabin of the analysis should meet the classification analysis cabin interior region corresponding explosion.
6.2.2 emergence of a dangerous situation, no explosion-protected electrical equipment should be disconnected, the best automatic or external long-term manned place
Manual switch off. Without proper authorization are not allowed to reopen.
6.2.3 Configure the external disconnector, so that in an emergency, shuts down the entire power analyzer cabin. Without proper authorization, not
Allowed to reopen.
6.3 adopt artificial ventilation of explosion-proof measures
6.3.1 Classification
The risk of explosion from the following sources.
Note. GB 3836.14-2000 gives guidance on hazardous area classification.
6.3.1.1 External explosion hazard (see 6.3.2)
NOTE. When analyzing cabin outlet toward the non-hazardous area, it is considered a hazardous area adjacent to the plant analysis of external cabins there is no danger.
6.3.1.2 due to internal flammable gas or vapor explosion hazard (see 6.3.3).
6.3.1.3 due to an internal explosion hazard of flammable liquids (see 6.3.4).
Any permutation or combination of 6.3.1.3 and 6.3.1.4 6.3.1.1,6.3.1.2.
6.3.2 The presence of an external explosion hazard analysis hut requirements
6.3.2.1 Analysis cabin partition zone 0 and 1 are connected should be distinguished boundary of air.
5.5.6 Analysis cabin by supplying clean air, thus creating a positive pressure to force the ventilation in the room, to prevent externa...
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 29812-2013_English be delivered?Answer: Upon your order, we will start to translate GB 29812-2013_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB 29812-2013_English with my colleagues?Answer: Yes. The purchased PDF of GB 29812-2013_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 [email protected]. 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.
|