This standard specifies the product structure type and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of wet tube-type electrostatic precipitators for coal gas. This standard is applicable to mixed tube-type electrostatic precipitators for purifying generator gas, coke oven gas, two-stage furnace gas and vertical furnace gas. JB/T 6409-1992 Wet tube-type electrostatic precipitator for coal gas JB/T6409-1992 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T6409-92
Wet Tube Electrostatic Precipitator for Gas
Published on July 20, 1992
Implementation of the Ministry of Machinery and Electronics Industry of the People's Republic of China on January 1, 1993
People's Republic of China
Mechanical Industry Standard
Wet Tube Electrostatic Precipitator for Gas
JB/T6409-92
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing 100081)
Copyright
Format 880 ×1230
First edition in October 1992
No reproduction
Sheet 5/8
Word count 12000
First printing in October 1992
Print count 0.001-500
Price 1.50 yuan
Mechanical Industry Standard of the People's Republic of China
Wet tubular electrostatic precipitator for coal gas
Subject content and scope of application
JB/T6409-92
This standard specifies the product structure type and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of wet tubular electrostatic precipitator for coal gas. This standard applies to wet tubular electrostatic precipitator for purification of generator gas, coke oven gas, two-stage furnace gas and vertical furnace gas (hereinafter referred to as precipitator).
Referenced standards
GB6222
JB1152
ZBJ88 001.3
ZBJ88001.5
ZBJ88002.3
ZBK46008.1
Steel pressure vessels
Safety regulations for gas in industrial enterprises
Butt welds of boilers and steel pressure vessels
Technical conditions
Electrostatic precipitator
Electrostatic precipitator
Pressure drop test| |tt||Dust collector
Dust removal efficiency test
Silicon rectifier equipment for high-voltage electrostatic dust removal
3 Product structure and basic parameters
3.1 Model representation method
3.2 Structural form
Ultrasonic flaw detection
Effective flow area, m2
Electrostatic precipitator
The product consists of two major parts: mechanical and high-voltage power supply. The mechanical part includes cathode system, anode system, water supply system, cleaning system, shell, etc. See Figure 1 for details. The Gaole power supply part should meet the requirements of 7BK46008.1. 3.3 Basic parameters
3.3.1 Gas processing volume
5000-50000m/h
3.3.2 Anode parameters
Anode parameters are specified in Table 1.
3.3.3 Cathode parameters
Cathode parameters shall be as specified in Table 2.
Approved by the Ministry of Machinery and Electronics Industry on July 20, 1992 and implemented on January 1, 1993
JB/T640992
1-insulator room; 2-power supply lead; 3-explosion-proof hole; 4-nozzle; 5-anode tube; 6--platform; 7-cathode line; 8-manhole; 9-continuous flushing pipe; 10-gas inlet; 11-return water bucket; 12-return water pipe; 13-return oil pipe: 14-intermittent flushing pipe: 15-oil washing pipe; 16-steam cleaning port; 17-gas outlet Table 1
Length mm
Diameter mm
Quantity root
3.3.4 Water supply system
3.3.4.1 Water consumption
Water consumption shall be in accordance with the provisions of Table 3.
155-325 (same as hexagonal type)
44~345
2~3 (stainless steel)
44~345
Water supply method
3.3.4.2 Water supply pressure
Water supply pressure is 0.2~0.3MPa:
High voltage power supply
According to the provisions of ZBK46008.1.
4 Technical requirements
JB/T6409
9—92
Water consumption t/(kmh)
The product shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 4.2 Working conditions
Ambient temperature: -30~45℃.
4.3 Main performance
The main performance of the product is shown in Table 4.
4.4 Materials
Working temperature °C
Dust concentration in population
Dust removal efficiency%
Pressure drop Pa
Working pressure kPa
Air flow distribution 6,
Air leakage rate%
According to Chapter 2 of GB150.
Assembly and manufacturing quality
The roundness tolerance of the cylinder is not greater than 0.3% of the diameter. The verticality tolerance of the cylinder is not greater than 0.2% of the height of the cylinder, electrode device
Electric field inlet <0.25
The verticality tolerance of the central axis of the anode tube during installation is 2mm. The coaxiality tolerance of the anode tube to the cathode line is 2mm. The flatness tolerance of the anode separator is 2mm:
200~300
≤200
Other sections<0.15
The center tolerance of any two holes on the anode separator is 2mm. Each water outlet in each group should be on the same horizontal plane, and its tolerance is intermittent cleaning device
The flatness tolerance of the top surface of the two supporting beams is 1mm:4.5.4
Insulator chamber
The test pressure of the insulation gas jacket of the insulator chamber shall not be less than 4×10°Pa. The pressure of the weld of the insulator chamber shell shall not be less than 4×105Pa. 3
Welding quality
According to Article 10.3 of GB150,
4.7 Safety and protection
According to GB6222.
Test method
Test conditions
On-site industrial test.
5.2 Test conditions
JB/T6409—92
The test is carried out under the on-site operating working conditions, and the temperature and pressure are the actual measured values ​​under the working conditions. 5.3 Main performance test
Carry out according to the provisions of ZBJ88001.5 and ZBJ88002.3. The results should meet the requirements of Table 4 of this standard. 5.4 Assembly accuracy test
5.4.1 Simplified
5.4.1.1 Simplified roundness tolerance
On the horizontal plane of the bottom of the cylinder, the plane of the cylinder mouth and the middle section, use a steel tape measure to measure the mutually perpendicular cylinder diameters of , and : (see Figure 2). Its roundness tolerance should meet the requirements of Article 4.5.1.1 of this standard. Figure 2
5.4.1.2 Verticality tolerance of cylinder
Measurement by plumb bob method As shown in Figure 3, hang a heavy bob at the center of the upper opening of the cylinder, and use a steel tape measure to measure the maximum and minimum values ​​of the distance △ between the bob line and the cylinder. The difference should meet the requirements of Article 4.5.1.2. Heavy bob line
5.4.2 Electrode device
Vertical tolerance of the central axis of the anode tube
JB/T6409~-92
Measurement by plumb bob method, place the anode vertically on the inspection support: hang a heavy bob at the center of the upper opening of the antarctic tube as shown in Figure 4, and then use a steel ruler with an accuracy of 0.5mm to measure the A value between the center of the plumb bob at the lower opening of the anode and the center of the inspection platform. The result should meet the requirements of Article 4.5.2.1. 5.4.2.2 Coaxiality tolerance of anode tube to cathode line The distance between the anode tube and cathode line is measured with a steel ruler with an accuracy of 0.5mm, based on the central axis of the anode tube. It shall meet the requirements of Article 4.5.2.2 of this standard.
5.4.2.3 Flatness tolerance of anode separator
Measure with DS, level and level rod. Select a suitable place to place the leveling level at the measured location, and place the level rod for measurement. The results shall meet the requirements of Article 4.5.2.3.
Inspection center
Forging center
Inspection platform bracket
Inspection platform
5.4.2.4 The center tolerance of any two holes on the anode separator plate and the flatness tolerance of each water outlet shall be carried out according to the method in Article 5.4.2.3 of this standard, and the result shall meet the requirements of Article 4.5.2.4.
5.4.3 The flatness tolerance of the top surface of the two supporting beams of the intermittent cleaning device shall be carried out according to the method in Article 5.4.2.3 of this standard, and the result shall meet the requirements of Article 4.5.3.
Insulator chamber
According to Article 10.9.5 of GB150, the insulator chamber shall be subjected to an air pressure test, and the result shall meet the requirements of Article 4.5.4 of this standard. 5.5 Welding quality
5.5.1 Kerosene leakage test
According to the provisions of Article 10.9.6.2 of GB150, the precipitator cylinder shall be subjected to a kerosene leakage test. 5.5.2 Ultrasonic flaw detection test
According to the provisions of JB1152, 20% ultrasonic flaw detection shall be performed on the precipitator cylinder and high-voltage insulator chamber. 5.6 No-load power-on test
The precipitator is filled with air and then operated for 24 hours according to the provisions of Article 3.3.5 of this standard. There shall be no abnormal phenomena such as spark flashover. 6 Inspection rules
Inspection categories
Product inspection is divided into factory inspection and type inspection. 6.2 Factory inspection
6.2.1 Factory inspection shall be the responsibility of the quality department of the manufacturer. The user may send a representative to participate. The inspection shall be carried out item by item according to the provisions of Articles 4.4 to 4.6 and the test methods of Articles 5.4 to 5.6. bzxz.net
6.2.2 Qualification determination
Those that meet all the test results according to the above requirements are qualified; if there are unqualified items, they should be repaired item by item until they are qualified. If they are still unqualified or cannot be repaired after repair, they should be regarded as unqualified. 5
6.3 Type inspection
6.3.1 Inspection conditions
JB/T6409-92
Products should be subjected to type inspection when they meet any of the following conditions: a.
When small batch trial production of new products is carried out before production;
When there are major changes in design, process and materials used; When production is resumed after suspension for more than one year;
When the national quality supervision agency puts forward type inspection requirements. d.
6.3.2 Inspection items and methods
The inspection items are all technical requirements specified in this standard, and the inspection methods are carried out in accordance with Article 5.3. 6.3.3 Qualification judgment
Inspect according to the above requirements, and those with all qualified results are qualified; if there are unqualified items, the unqualified items should be double-checked. If they are still unqualified, the batch of products is considered unqualified. 7 Marking, packaging, transportation, storage
According to the provisions of Chapters 7 to 9 of ZBJ88001.3.
Additional instructions:
This standard was proposed and coordinated by Zhuji Electrostatic Precipitator Research Institute. This standard was drafted by Anshan Environmental Protection Equipment Industrial Company. The main drafters of this standard are Gao Guochun, Liu Qinglan, Wang Yujie, and Zuo Xiutong. 6
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