CN204799417U - Tubular conductive glass wet -type electrostatic precipitator - Google Patents

Abstract

A tubular conductive glass wet electrostatic precipitator is provided, including a shell, an anode tube bundle, a gas distribution device, a corona electrode, an upper beam for the sedimentation electrode, a lower beam for the sedimentation electrode, a cathode suspension frame, an insulation box, a spray device, and a pull tightening device, weight, high-voltage DC power supply, hot air blowing system, etc.; the housing includes an air distribution chamber, a dust removal chamber and a lower air chamber; the air distribution chamber is composed of an air inlet, an air distribution device, and a spray device; the dust removal chamber consists The cathode suspension frame, the upper beam of the sedimentation electrode, the anode tube bundle, the corona electrode, the lower beam of the sedimentation electrode and the cathode tensioning device; It is connected with the chimney; the water collection tank is provided with a discharge port; several FRP anode tube bundles are evenly arranged vertically in the shell, corona electrodes are evenly distributed in the middle of the FRP anode tube bundles, and the spray device is placed above the anode tube bundle; its advantages are: energy saving and emission reduction , corrosion resistance, easy processing, and achieved smoke and dust emission standards.

Description

A tubular conductive glass wet electrostatic precipitator

Technical field:

The utility model relates to the technical field of industrial dust removal equipment, in particular to a tubular conductive glass wet electrostatic precipitator.

Background technique:

At present, the overall deterioration of my country's environmental conditions has not been fundamentally curbed, environmental contradictions have become increasingly prominent, and the pressure on environmental protection has continued to increase. Atmospheric smog is prominent in some regions and cities, and the discharge of major pollutants in many regions exceeds the capacity of the environment. The smoke and dust emitted by various industries is the main source of air pollution. Therefore, the country has put forward stricter requirements _on soot and SO2 emissions. The State Council clearly pointed out in the approval opinion of the "Twelfth Five-Year Plan for the Prevention and Control of Air Pollution in Key Areas" that by 2015, industrial smoke and dust emissions in key areas will drop by 10%; inhalable particulate matter (PM ₁₀ ), fine particulate matter (PM _2.5 ) average annual concentrations decreased by 10% and 5% respectively. Among them, 13 key areas including the Beijing-Tianjin-Hebei region, the Yangtze River Delta, and the Pearl River Delta included PM _2.5 fine particles in the assessment indicators, and the annual average concentration of fine particles dropped by 6%. Photochemical smog pollution will be significantly reduced. In the existing technology, the traditional flue gas absorption device has been unable to meet the increasingly stringent requirements for ultra-low emission concentration of fine particulate matter, and higher requirements have been put forward for the performance and reliability of the dust collector. Electrostatic precipitator is widely used in flue gas treatment in the industrial field because of its advantages of high dust removal efficiency, wide application range, low operating cost, high reliability, convenient use and no secondary pollution. Compared with the dry electrostatic precipitator, the wet electrostatic precipitator has a powerful function of controlling complex pollutants. It is effective against fine, viscous or high specific resistance dust, as well as acid mist and heavy metals (Hg, etc.) in the flue gas. The collection effect is also very ideal. Therefore, wet electrostatic precipitator technology and equipment have emerged one after another at home and abroad and have been successfully applied. However, the domestic application of wet electrostatic precipitators has just started, and there are still a series of problems. Because the treated flue gas is saturated wet flue gas, which is highly corrosive, how to do a good job of anticorrosion of equipment, improve product life, and reduce operating costs is one of the key factors in the design, and the current domestic wet electrostatic precipitator flue gas flow rate is relatively low, accounting for Larger land area and more consumables generally have no effect on newly-built units. For old units that have been put into operation, the space available for renovation is very limited, which seriously restricts the large-scale promotion and application of wet electrostatic precipitators.

Invention content:

The purpose of this utility model is to overcome the shortcomings of existing flue gas pollutant purification equipment, and provide a tubular conductive glass fiber reinforced plastic wet electrostatic precipitator with good electrical conductivity, high demisting efficiency, long service life and compact equipment layout.

The technical solution of the utility model is: provide a tubular conductive glass wet electrostatic precipitator, a tubular conductive glass wet electrostatic precipitator, including a shell connected to each other, a sedimentation pole upper beam, a sedimentation pole lower beam, and a cathode Suspension frame, insulation box without leads, insulation box with leads, air inlet, exhaust outlet, sprinkler device, tensioning device, weight, maintenance manhole, water collection tank, support beam, high voltage DC power supply, Hot air purging system; its features are: it also includes anode tube bundles, gas distribution devices, and corona electrodes; inside the shell, there are air distribution chamber, dust removal chamber and lower air chamber in sequence from top to bottom; the air distribution chamber is composed of air inlet, air flow Distributing device and spraying device; the dust removal chamber forming a non-uniform high-voltage electrostatic field is composed of cathode suspension frame, upper beam of sedimentation pole, anode tube bundle, cathode line, lower beam of sedimentation pole and cathode tensioning device; the lower air chamber is It consists of an exhaust port, a maintenance manhole and a water collection tank. The exhaust port is connected with the flue and the chimney; the water collection tank is provided with a water-ash mixture outlet; a number of FRP anode tube bundles are evenly and vertically arranged in the shell, and the FRP anode tube bundles are evenly distributed in the middle The corona electrode, the spray device is placed above the anode tube bundle; the high-voltage DC power supply is connected to the corona electrode through the insulating box with lead wires; the insulating box with lead wires is connected with the hot air blowing system, and the anode tube bundles can be arranged in a circle or a square or honeycomb. It is also characterized in that: the air inlet end of the air distribution device is provided with an angle-adjustable deflector and a double-layer air flow distribution plate with an adjustable opening ratio; the corona electrode is made of improved high-efficiency corrosion-resistant titanium or Lead-antimony alloy; the anode tube bundle is made of corrosion-resistant FRP composite material, with high-grade corrosion-resistant vinyl resin as the matrix, carbon fiber and glass fiber as reinforcement materials; the cathode system adopts: cathode suspension frame + cathode tensioning device + weight fixing Way.

The beneficial effects of the utility model are: the anode tube bundle is made of corrosion-resistant glass fiber reinforced plastic composite material, with high-grade corrosion-resistant vinyl resin as the matrix, carbon fiber and glass fiber as reinforcement materials, good adhesion resistance, corrosion resistance, and easy processing. The inner diameter of the anode tube is 250-500mm, and the length is 3000-6000mm. It can be arranged in a circular, square or honeycomb shape, which effectively solves the problem of fine particles (SO ₃ acid mist, PM _2.5 , aerosols, and small droplets) caused by existing smoke and dust purification equipment. , heavy metals (Hg, As, Se, Pb, Cr), and organic pollutants cannot be removed in depth. The concentration of smoke and dust emissions can be below 10mg/Nm ³ or even 5mg/Nm ³ , achieving ultra-low emissions and completely solving the problem that chimney emissions are not up to standard The problem. The utility model 1. Wide application range: it can be widely used in coal-fired power plants, steel plants, small boilers, waste incineration, cement building materials, chemical industry and other industries for deep purification of wet flue gas and ultra-low emission. It can remove dust particles and aerosols with a particle size of 0.01 μm to ensure that the dust meets the latest national standards or higher. 2. The new corrosion-resistant composite material makes the layout of the electrostatic precipitator flexible, and can adapt to the current complex renovation site. Due to the increase of the flue gas flow rate, the structure is simple, the layout is compact, and the floor space is small. The secondary transformation project can be installed at the end of the flue gas treatment without changing the existing dust removal facilities, and can run stably for a long time. 3. The flue gas treatment capacity is large. Multiple electric fields or multiple devices can be used in parallel to treat flue gas volume up to 5 million m ³ /h, or even larger. 4. Due to the use of a special pole matching method, the distance between the poles can be adjusted reasonably according to the different flue gas conditions, and the efficiency of dust and fog removal can be improved. The outlet dust can achieve an ultra-low emission of 5mg/Nm ³ , and the removal rate of SO ₃ acid mist 80-98%, the corrosiveness of the wet flue gas discharged through the chimney is greatly reduced, and various pollutants such as heavy metals are also effectively controlled, which can greatly improve the cleanliness of the flue gas emission and reduce the tail feathers of the chimney. 5. The system resistance is small, the investment is small, and the operating cost is low.

Description of drawings:

Fig. 1 is a schematic diagram of a tubular conductive glass wet electrostatic precipitator according to an embodiment of the present invention;

In the attached drawings: 1. Shell; 2. Anode tube bundle; 3. Precipitation pole upper beam; 4. Cathode suspension frame; 5. Gas distribution device; 6. Insulation box without leads; 7. Insulation box with leads ;8. Air inlet; 9. Spraying device; 10. Corona electrode; 11. Tensioning device; 12. Heavy hammer; 13. Exhaust port; 14. Maintenance manhole; .Water collection tank; 17. Support beam; 18. High voltage DC power supply; 19. Hot air purging system

Detailed ways:

The following is a further detailed description of the embodiment of the utility model in conjunction with the accompanying drawings: Figure 1 is a structural diagram of a tubular conductive glass wet electrostatic precipitator. Inside the housing 1 from top to bottom are an air distribution chamber, a dust removal chamber and a lower air chamber, wherein the air distribution chamber is composed of an air inlet 8, an air distribution device 5 and a spray device 9; the air distribution device 5 is composed of Adjustable deflector and air distribution plate; the dust removal chamber is composed of cathode suspension frame 4, sedimentation pole upper beam 3, anode tube bundle 2, cathode wire 10, sedimentation pole lower beam 15 and cathode tensioning device 11, forming a non-uniform The high-voltage electrostatic field is the dust and fog removal area; the lower air chamber is composed of an exhaust port 13, a water collection tank 16, and a maintenance manhole 14, and the treated flue gas enters the flue through the exhaust port 13; the air inlet 8 is located at On the top of the housing, the exhaust port 13 is located on the side of the lower end of the housing 1. It has an adjustable deflector, and the opening ratio of the air distribution plate is adjusted accordingly to make the gas evenly distributed and avoid the problem of reduced dust removal efficiency caused by uneven flue gas. . A number of glass steel pipe bundles 2 are uniformly and vertically arranged in the housing 1 , and cathode lines 10 are evenly distributed in the middle of the glass steel pipe bundles, and the spray device 9 is placed above the anode tube bundles 2 . The high-voltage direct current 18 is connected to the corona electrode 10 through the insulating box 7 with lead wires, and the insulating box 7 with lead wires is insulated and protected by the hot air blowing system 19, and the liquid collected by the electrostatic precipitator and the spray cleaning liquid flow into the water collection tank 16 rows It is discharged from the outlet and recycled after treatment.

Claims (5)

1. A tubular conductive glass wet electrostatic precipitator, comprising a shell (1) connected to each other, an upper beam on the sedimentation pole (3), a lower beam on the sedimentation pole (15), a cathode suspension frame (4), without lead wires insulation box (6), insulation box with leads (7), air inlet (8), exhaust outlet (13), spraying device (9), tensioning device (11), weight (12), Maintenance manhole (14), water collection tank (16), support beam (17), high-voltage DC power supply (18), hot air blowing system (19); it is characterized in that it also includes anode tube bundles (2), gas distribution device ( 5), the corona electrode (10); inside the housing (1) from top to bottom are the air distribution chamber, the dust removal chamber and the lower air chamber; the air distribution chamber consists of an air inlet (8), an air distribution device (5) , spraying device (9); the dust removal chamber forming a non-uniform high-voltage electrostatic field is composed of a cathode suspension frame (4), a beam on the precipitation pole (3), an anode tube bundle (2), a cathode wire (10), a precipitation pole The lower beam (15) and the cathode tensioning device (11) are composed; the lower air chamber is composed of the exhaust port (13), the maintenance manhole (14) and the sump (16). The exhaust port (13) and the flue It is connected with the chimney; the water collection tank (16) is provided with a water-ash mixture outlet; a number of FRP anode tube bundles (2) are evenly and vertically arranged in the casing (1), and corona electrodes (10) are evenly distributed in the middle of the FRP anode tube bundles (2) , the spray device (9) is placed above the anode tube bundle (2); the high-voltage DC power supply (18) is connected to the corona electrode (10) through the insulating box (7) with a lead wire; the insulating box (7) with a lead wire is connected to the The hot air blowing system (19) is connected, and the anode tube bundle (2) can be arranged in a circular, square or honeycomb shape. 2. A kind of tubular conductive glass wet electrostatic precipitator as claimed in claim 1, characterized in that: the air inlet end of the air flow uniform distribution device (5) is provided with an angle-adjustable deflector and the opening ratio can be adjusted. Adjustable double-layer air distribution board. 3. A tubular conductive glass wet electrostatic precipitator as claimed in claim 1, characterized in that: the corona electrode (10) is made of titanium or lead-antimony alloy, which is an improved high-efficiency corrosion-resistant material. 4. A tubular conductive glass wet electrostatic precipitator as claimed in claim 1, characterized in that: the anode tube bundle (2) is made of corrosion-resistant FRP composite material, with high-grade corrosion-resistant vinyl resin as the matrix, carbon fiber, glass Fibers are reinforcing materials. 5. A kind of tubular conductive glass wet electrostatic precipitator as claimed in claim 1, characterized in that: the cathode system adopts: cathode suspension frame (4)+cathode tensioning device (11)+weight (12) a fixed way.