HJ 2529-2012 (HJ2529-2012) & related versions
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Technical requirement for environmental protection product. Electrostatic-fabric integrated precipitator
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HJ 2529-2012: PDF in English
HJ 2529-2012
Technical requirement for environmental protection product.Electrostatic-fabric integrated precipitator
National Environmental Protection Standard of the People's Republic
Environmental protection product technical requirements electric bag composite dust collector
Technical requirement for environmental protection product
Electrostatic-fabric Integrated Dust Collector
Published on.2012-7-31
2012-11-1 Implementation
Release Ministry
HJ □□□-20□□
Content
Foreword. II
1 Scope.1
2 Normative references.1
3 Terms and Definitions 2
4 Product Name.3
5 basic requirements.3
6 performance requirements.5
7 Test method. 5
8 Inspection rules.6
9 Marking, packaging, transportation and storage..6
Foreword
In order to implement the "Environmental Protection Law of the People's Republic of China", to prevent and control air pollution, to standardize the design, production, manufacture and safety of electric bag composite dust collectors.
This standard is formulated and accepted.
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of the electric bag composite dust collector.
This standard is the first release.
This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection.
This standard was drafted. China Environmental Protection Industry Association, Fujian Longjing Environmental Protection Co., Ltd.
This standard was approved by the Ministry of Environmental Protection on July 31,.2012.
This standard has been implemented since November 1,.2012.
This standard is explained by the Ministry of Environmental Protection.
Environmental protection product technical requirements electric bag composite dust collector
1 Scope of application
This standard specifies the terms and definitions, naming, basic requirements, performance requirements of the electric bag composite dust collector (hereinafter referred to as the dust collector).
Test methods, inspection rules, marking, packaging, transportation and storage.
This standard is applicable to electric bags that are installed in a box with an electric field and a filter bag area.
Composite dust collector.
2 Normative references
This standard refers to the terms of the following documents. For undated references, the valid version applies to this standard.
GB 150 steel pressure vessel
GB 191 packaging storage and transportation icon
GB/T 700 carbon structural steel
GB/T 985.1 Recommended groove for gas welding, electrode arc welding, gas shielded welding and high energy beam welding
GB/T 985.2 recommended groove for submerged arc welding
GB 4053.1 Fixed steel ladders and platforms - Safety requirements - Part 1
GB 4053.2 Fixed steel ladders and platforms - Safety requirements - Part 2
GB 4053.3 Fixed steel ladders and platforms - Safety requirements - Part 3. Industrial protective railings and steel platforms
GB 4053.4 fixed industrial steel platform
GB/T 6388 transport packaging receipt and delivery mark
GB/T 9969 General guidelines for the use of industrial products
GB 12348 Environmental noise emission standards for industrial enterprises
GB/T 13277.1 Compressed air Part 1. Contaminant purification level
GB/T 13306 signage
General technical conditions for GB/T 13384 mechanical and electrical product packaging
GB/T 13931 electrostatic precipitator performance test method
GB 50169 Electrical installation engineering grounding device construction and acceptance specifications
HJ/T 320 Environmental Protection Product Technical Requirements Electrostatic Precipitator High Voltage Rectifier Power Supply
HJ/T 324 environmental protection product technical requirements filter material for bag filter
HJ/T 325 environmental protection product technical requirements bag filter bag frame
HJ/T 326 environmental protection product technical requirements film filter for bag filter
HJ/T 327 environmental protection product technical requirements bag filter bag
HJ/T 328 Environmental Protection Products Technical Requirements Pulse Injection Bag Type Dust Collector
JB/T 4711 Pressure Vessel Coating and Transport Packaging
JB/T 5908 Electrostatic precipitator main parts sampling inspection and packaging transportation storage specifications
Technical requirements for welding parts of JB/T 5911 electrostatic precipitator
JB/T 5917 filter bag frame for bag filter
JB/T 8471 bag filter installation technical requirements and acceptance specifications
JB/T 8532 pulse blowing bag type dust collector
JB/T 8536 electrostatic precipitator mechanical installation technical conditions
Pressure Vessel Safety Technology Supervision Regulations Quality and Technical Supervision Bureau Pot [1999] No. 154
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1 electric bag composite dust collector electrostatic-fabric integrated dust collector
Install an electric field zone and a filter bag zone in a box (the electric field zone and the filter bag zone can have multiple configurations), and the static electricity and the filter are divided.
A dust collector that combines dust technology.
3.2 electric field area electric field area
At the same time, the anode system and the cathode system are installed, and the electrostatic dust removal principle is applied to pre-charge and pre-dust the dust in the dust-containing gas.
region.
3.3 filter field area
A filter bag and a cleaning device are installed to filter the areas of charged dust and uncharged dust that are not trapped by the electric field.
3.4 electric field electric field
An area consisting of a set of anode and cathode systems and a high voltage power supply along the direction of the gas flow.
3.5 channel width passage width
The lateral dimension of the vertical airflow in the channel.
3.6 plate effective area plate projected area
The projected area of the plate on the center plane of the channel. It can be calculated by the formula A=2N×H×L, where A is the effective area of the plate, single
Bit m2; H is the effective height of the electric field. that is, the height of the anode plate with electric field effect; L is the effective length of the electric field. that is, in the direction of the straight line along the airflow
The total length of the plate, in m; N is the number of channels. that is, the gas passage formed by the adjacent two rows of anode plates is called the channel, and the number of channels in the box is called
Number of channels, in units.
3.7 specific collection area
The ratio of the effective area of the plates to the amount of dust-laden gas under working conditions. That is f =
A , where f is the dust collection area, unit
M2/(m3/s); A is the effective area of the plate, the unit is m2; Q is the amount of dusty gas treated by the dust collector, the unit is m3/s.
3.8 high voltage power supply
A high voltage power supply that supplies power to the electric field.
3.9 electric control equipment
Electrical equipment that controls dust cleaning, heating, etc. and has safety alarm and monitoring functions.
3.10 air box air manfold
A compressed air container that is coupled to the blow tube.
3.11 filter bag filter bag
A bag-shaped filter element made of a filter material.
3.12 total filtration area of filter bag area
The sum of the side areas of the filter bags in the filter bag area. That is, S = πd × l × n, where S is the total filter area of the filter bag, the unit is m2; d is the diameter of the filter bag (or
Equivalent diameter), unit m; l is the effective length of the filter bag, the unit is m; n is the total number of filter bags, unit strips.
3.13 air to cloth ratio (surface load)
The ratio of the flow rate of the dust-containing gas to the total area of the filter bag under the working conditions, in m/min.
3.14 Pressure drop Pressure drop
The difference between the average full pressure of the airflow in the inlet section and the outlet section of the dust collector.
3.15 air leakage rate
When the main engine is running at full load, the flow rate of dusty gas at the outlet of the dust collector (standard state, dry basis) and the flow rate of imported dusty gas (standard state, dry basis)
The difference between the difference and the flow rate of imported dusty gas.
3.16 filter bag room filter bag field
A gas passage surrounded by a wall or column in the filter bag area.
4 Product naming
4.1 Product Structure
The electric bag composite dust collector is a box type structure, outdoor type. The electric field area and the filter bag area are installed in the cabinet. There are many types of electric field and filter bag area.
In the form of configuration, a combination of the filter belt areas of the pre-stage electric field area is generally adopted. The dust collector is equipped with a high-voltage power supply and electrical control
Set and cleaning device.
4.2 Product naming
DDFH □ one □
The total filtration area of the filter bag area (in hundred square meters)
Plate effective area (in hundred square meters)
Electric bag composite dust collector
Example.
The electric bag composite dust collector has an effective area of 55.2×102 m2 and a total filtration area of 350×102 m2 in the filter bag area. The product is marked as follows.
DDFH 55.2-350
5 basic requirements
5.1 Manufacturing, processing and assembly
5.1.1 The dust collector shall be manufactured, installed, commissioned, and accepted in accordance with the product drawings and technical documents approved by the prescribed procedures, and conform to JB/T 8532.
And the requirements of this standard. If the user has special requirements, it must be indicated on the order contract or technical agreement.
5.1.2 The basic type and size of welded joints shall comply with the relevant provisions of GB/T 985.1 and GB/T 985.2.
5.1.3 The welder welding parts shall comply with the provisions of JB/T 5911.
5.1.4 The coating quality of the dust collector shall comply with the requirements of HJ/T 328.
5.1.5 On-site installation is performed in accordance with the requirements of JB/T 8536 and JB/T 8471.
5.2 Structure
5.2.1 The channel width of the electric field in the precipitator should be 400 mm.
5.2.2 The dust collection area of the dust collector electric field area should meet the requirements of Table 1.
Table 1 Specific dust collection area of the electric field of the dust collector
Handling the amount of dusty gas Q
(standard; 104m3/h)
Q≤34 34< Q≤68 68< Q≤102 102< Q≤136 Q>136
Handling the amount of dusty gas Q
(conditions 130 ° C; 104 m3/h)
Q≤50 50< Q≤100 100< Q≤150 150< Q≤200 Q>200
Than dust collection area
(m2/(m3/s))
≥20 ≥25 ≥30 ≥35 ≥40
5.2.3 The filter bag area of the dust collector can be divided into several chambers (or units), and the number of chambers (or units) can meet the requirements of Table 2.
Table 2 Number of chambers (or units) in the filter bag area of the dust collector
Handling the amount of dusty gas Q
State; 104m3/h)
Q≤34 34< Q≤68 68< Q≤102 102< Q≤163 163< Q≤244 Q>244
Handling the amount of dusty gas Q
(conditions 130 ° C; 104 m3/h)
Q≤50 50< Q≤100 100< Q≤150 150< Q≤240 240< Q≤360 Q>360
The number of rooms (or units) ≥6 ≥8 ≥12 ≥16 ≥24 ≥28
5.2.4 The heating device should be installed in the incubator of the cathode system. If necessary, a heating device can be installed on the ash wall.
5.2.5 The hopper should be equipped with accessories such as level detection device, cleaning device and ash hole.
5.2.6 The temperature detection device should be installed in the inlet and outlet boxes. If necessary, the ash bucket can be equipped with a temperature detection device.
5.3 Materials
5.3.1 Filter media for filter bags shall comply with HJ/T 324 or HJ/T 326. When using polyphenylene sulfide (PPS) filter material and glass fiber filter
The materials should also comply with the requirements of Table 3.
Table 3 Properties of polyphenylene sulfide (PPS) filter media and glass fiber coated filter media
Filter material
quality
g/m2
thickness
Mm
Air permeability
M3/(m2⋅min)
Strong thermal shrinkage rate
% warp latitude
Polyphenylene sulfide>550 >1.8 2.5 ≥800 N/(5×20)cm2 ≥1 000N/(5×20)cm2 < 1
Glass fiber coating >745 ≥3000N/(2.5×20)cm2 ≥2500N/(2.5×20)cm2 < 1
5.3.2 The cleaning of the filter bag should be compressed air or clean gas (such as nitrogen), and its quality grade should meet the requirements of GB/T 13277.1;
When the ambient temperature is less than or equal to -10 ° C, the quality grade of solid particles, water and oil content is 3, 3, 4; when the ambient temperature is greater than -10 ° C,
The solid particles, water, and oil content have a quality rating of 3, 4, and 4.
5.4 Main components
5.4.1 The processing of major components shall comply with the provisions of JB/T 5908 and JB/T 5917.
5.4.2 The manufacture, testing and acceptance of the gas distribution box shall comply with the provisions of GB 150 and the “Safety Technical Supervision Regulations for Pressure Vessels”.
5.4.3 The flower board should be laser processed and in accordance with HJ/T 328.
5.4.4 The filter bag shall comply with the requirements of HJ/T 327.
5.4.5 The filter bag frame shall comply with the provisions of HJ/T 325 and JB/T 5917, and the mechanical strength of the material shall not be lower than that specified in GB/T 700.
Q235 strength rating requirements.
5.4.6 When the rotary cleaning mechanism is used, the rotary mechanism should be operated smoothly and the rotary shaft should have good sealing performance.
5.5 Supporting electrical appliances
5.5.1 High voltage power supply
The high-voltage power supply should comply with the HJ/T 320 regulations and encourage the use of new high-voltage power supplies.
5.5.2 Electrical control unit
The electric control device should be able to control the process of cathode and anode rapping, incubator heating and ash bucket heating in the electric field, and can control the filter bag area.
The cleaning system has functions such as security protection and alarm.
5.6 Applicable conditions
a) The temperature of the imported dusty gas is ≤250 °C;
b) The dust concentration of the inlet gas in the standard state is ≤1500 g/m3 (standard state, dry basis);
c) Under working conditions, the pressure of the dust-containing gas is in the range of -20.0 kPa to 10.0 kPa (gauge pressure).
6 Performance requirements
6.1 Performance
6.1.1 The dust concentration of the outlet gas of the dust collector shall comply with the national and local emission standards and the limits specified in the contract;
6.1.2 Pressure drop between the inlet and outlet flanges of the dust collector. When the filtered wind speed is ≥1.3 m/min, the pressure drop should be ≤1200 Pa;
6.1.3 The air leakage rate of the dust collector shall be ≤ 3 %;
6.1.4 The service life of the filter bag is not less than 2 years, and the annual damage rate of the filter bag is ≤1% within 2 years.
6.2 Security
6.2.1 Safety technical requirements for stairs, protective railings and platforms shall comply with the provisions of GB 4053.1 to GB 4053.4.
6.2.2 Lighting devices shall be provided at the stairs, the maintenance platform, the platform of the ash discharge device, etc.
6.2.3 The dust collector manhole door and high voltage switch cabinet door shall be safely interlocked with the high voltage power supply.
6.2.4 The dust collector shall be provided with a special grounding grid. The connection between the outer casing and the grounding grid shall not be less than 6 points, and the grounding resistance shall be less than 2Ω.
6.2.5 The noise of the dust collector shall not exceed 85 dB(A).
6.2.6 The compressed air system of the dust collector shall be provided with a pressure relief valve.
6.2.7 The dust collector can work safely under the pressure conditions of dusty gas. When the dust collector is running, ensure that the resistance of the dust-containing gas passage does not occur.
Mutation (pressure rise rate or decline rate is not more than 40 Pa/s) and no airflow blockage.
6.2.8 The dust collector shall be provided with a dust-containing gas over-temperature alarm device at the inlet end.
7 Test methods
7.1 The test method for the dust concentration, pressure drop and air leakage rate of the outlet gas of the dust collector shall be in accordance with GB/T 13931.
7.2 The main parts of the electric dust removal area shall be inspected in accordance with JB/T 5908.
7.3 Inspection of filter bags shall be in accordance with HJ/T 327.
7.4 Inspection of the filter bag frame is in accordance with HJ/T 325.
7.5 Inspection of filter media is as specified in HJ/T 324 or HJ/T 326.
7.6 Grounding resistance is determined in accordance with GB 50169.
7.7 The noise is measured according to GB 12348.
7.8 Other tests
For tools used for geometric dimensional inspection, the accuracy level should not be less than 2 levels.
8 Inspection rules
8.1 Inspection classification
The inspection of the dust collector is divided into factory inspection, installation inspection and type inspection.
8.2 Factory inspection
8.2.1 All the parts and components of each precipitator shall be inspected and qualified by the quality inspection department of the manufacturer.
8.2.2 The inspection items are shown in Table 4.
8.3 Installation inspection
Installation inspection is performed on site and is performed in accordance with JB/T 8536 and JB/T 8471.
8.4 Type test
Type inspection shall be carried out in any of the following circumstances.
a) trial production of new products or production of old products;
b) When there is a major change in product structure, materials, main components, processes, etc., which may affect product performance;
c) in batch production, after regular or after reaching a certain amount of production;
d) The product is discontinued for a long time (more than three years) and needs to be resumed during production;
e) When the factory inspection result is significantly different from the previous type inspection.
8.4.1 Sampling method. random sampling, the number of samples does not exceed 2 units.
8.4.2 The inspection items are shown in Table 4.
Table 4 Inspection items and requirements for electric bag composite dust collector
No. Item Name Requirement Test Method Factory Inspection Type Inspection
1 Structural inspection 4.1～6.2.8 7.2～7.8 √ √
Machining geometry of the part,
Geometric tolerance
5.1～6.2.1 7.2～7.8 √ √
3 Machining and assembly accuracy 5.1～6.2.1 7.2～7.8 √ √
4 Welding quality 5.1～6.2.1 7.2～7.8 √ √
5 Appearance quality 5.1～6.2.1 7.2～7.8 √ √
6 Grounding resistance 6.2.4 7.6 √
7 Dust collector outlet gas dust concentration 6.1.1 7.1 √
8 Dust collector pressure drop 6.1.2 7.1 √
9 Dust collector air leakage rate 6.1.3 7.1 √
Note. Call “√” to indicate the item to be inspected.
8.5 Decision rules
8.5.1 The results of the inspection shall comply with the provisions of Chapters 4, 5 and 6.
8.5.2 Main performance indicators of the precipitator during type inspection When there is an unqualified item in the dust concentration, pressure drop and air leakage rate of the outlet gas, the return is allowed.
Repair inspection until qualified; if any of the other items are unqualified, it shall be doubled and re-examined. If it still does not meet the requirements, it shall be judged as unqualified.
9 Marking, packaging, transportation and storage
9.1 mark
9.1.1 Fix the product nameplate in an appropriate and obvious position, the type and size of which shall comply with the relevant provisions of GB/T 13306.
9.1.2 The packaging mark shall include the receipt and delivery mark, the package storage and transportation icon mark, and shall comply with the provisions of GB 191 and GB/T 6388.
The instruction manual should be prepared in accordance with the requirements of GB/T 9969.
9.2 Packaging, transportation and storage
9.2.1 The main parts of the dust collector body shall comply with the provisions of JB/T 5908 and HJ/T 328, and the gas distribution box shall comply with the provisions of JB/T 4711,
The rest is in accordance with the provisions of GB/T 13384.
9.2.2 The filter bag frame shall be packed in sections and in full boxes. The packaging shall be made of a solid frame such as iron flower blue, and the waterproofing shall be made of materials such as tarpaulin.
9.2.3 Filter bags, filter bag frames, and pulse valves shall be transported in a clean caravan or ship.
9.2.4 The filter bag, filter bag frame and pulse valve should be stored in a dry and ventilated environment that is not exposed to the sun or rain.
......
| Standard ID | HJ 2529-2012 (HJ2529-2012) | | Description (Translated English) | Technical requirement for environmental protection product. Electrostatic-fabric integrated precipitator | | Sector / Industry | Environmental Protection Industry Standard | | Classification of Chinese Standard | N56 | | Classification of International Standard | 13.040.99 | | Word Count Estimation | 12,118 | | Quoted Standard | GB 150.4; GB 191; GB/T 700; GB/T 985.1; GB/T 985.2; GB 4053.1; GB 4053.2; GB 4053.3; GB/T 6388; GB/T 9969; GB 12348; GB/T 13277.1; GB/T 13306; GB.T 13384; GB/T 13931; GB 50169; HJ/T 320; HJ/T 324; HJ/T 325; HJ/T 326; HJ/T 327; HJ/T 328; JB/T 4711; JB/T 59 | | Drafting Organization | China Environmental Protection Industry Association | | Regulation (derived from) | Department of Environmental Protection Notice No. 47 of 2012; | | Summary | This standard specifies the electrical Fabric Filter (hereinafter referred to as ESP) terms and definitions, naming, basic requirements, performance requirements, test methods, inspection rules, marking, packaging, transport and storage. This standard app |
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