Self-cleaning insulation device for wet-type electric dust remover

Abstract

The utility model relates to a self-cleaning insulation device for a wet-type electric dust remover, which relates to the technical field of wet-type electric dust remover equipment, and comprises a cylinder body, an air supply pipe connected with a hot-air blower is arranged on the side wall of the cylinder body, a porcelain bushing is arranged in the cylinder body, the porcelain bushing is of a frustum-shaped structure, a ventilation hole is formed in the porcelain bushing, and the ventilation hole is communicated with the air supply pipe. A cathode hanging rod of the wet-type electric dust remover is fixedly installed in the porcelain sleeve, and an air outlet barrel is installed at the bottom of the barrel body and communicated with an inner cavity of the porcelain sleeve. According to the utility model, pure hot air is fed into the cylinder body through the air supply pipe, the hot air flows in from the vent holes, passes through the interior of the porcelain bushing and then flows out from the air outlet cylinder, and dust, scales and condensed water adsorbed by a cathode suspender can be gathered out during hot air circulation, so that the problem that the insulator is damaged due to electrostatic interaction is solved, and the service life of the insulator is prolonged. Creepage and even breakdown phenomena can be effectively avoided, normal operation of an electric field is guaranteed, and therefore it is guaranteed that the wet-type electric precipitator can be normally used.

Description

Technical Field

[0001] The utility model relates to the technical field of wet electric precipitator equipment, and specifically discloses a self-cleaning insulation device for a wet electric precipitator. Background Art

[0002] Wet electrostatic precipitator is a new dust removal equipment used to deal with trace dust and microparticles. It is mainly used to remove dust, acid mist, water droplets, aerosols, odors, PM2.5 and other harmful substances in humid gases. It is an ideal equipment for controlling atmospheric dust pollution.

[0003] The utility model patent with authorization announcement number: CN216631194U discloses an insulating support device for a wet electrostatic precipitator and a wet electrostatic mist precipitator, including an insulating support porcelain bottle with openings at both ends, the upper edge of the insulating support porcelain bottle is used to suspend and install a cathode suspension, the length of the top horizontal part of the cathode suspension is greater than the upper diameter of the insulating support porcelain bottle, so that the top of the cathode suspension is stuck on the upper edge of the insulating support porcelain bottle, and the vertical part of the cathode suspension passes vertically downward through the lower opening of the insulating support porcelain bottle.

[0004] The above patented technology is basically similar to the existing wet electrostatic precipitator in structure and function, and both are equipped with cathode suspension system insulation devices. The existing technology generally uses 50 porcelain or 95 porcelain insulators / insulating porcelain sleeves as insulating parts, and thick steel plates are used as sealing covers on the top. The cathode suspension rod passes through the reserved hole in the middle of the insulator cover, the upper end is fixed by a nut, and the lower end is connected and fixed to the cathode system frame; several groups of electric heaters are generally set around the insulators of wet electrostatic precipitators. Through the operation of the electric heaters, the inner and outer surfaces of the insulators are kept in a dry state, thereby avoiding the phenomenon of dust adhering to the inner wall of the insulator to cause creeping.

[0005] In the actual production process, the wet gas in the flue gas treated by the wet electrostatic precipitator (such as water vapor containing some soluble salts and acids, acidic gases such as SO3 / HF) will accumulate in the closed space surrounded by the insulator cover and the inner wall of the insulator. When this area is in a positive pressure operation state for a long time, the gas will produce condensation, and produce condensed water after contacting the insulator cover (metal or non-metallic material) and the inner wall of the insulator, which will cause it to adhere to dust, scale, and absorb condensed water due to static electricity, resulting in creepage and even breakdown, causing damage to the insulator, so that the electric field where the insulator is located cannot be put into normal operation, thus affecting the normal use of the wet electrostatic precipitator. Utility Model Content

[0006] Aiming at the problem that in current wet electrostatic precipitators, dust particles are easily adsorbed on the inner wall of the insulator due to static electricity, thus causing damage to the insulator, the utility model provides a self-cleaning insulation device for a wet electrostatic precipitator.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A self-cleaning insulating device for a wet electrostatic precipitator comprises a cylinder, an air supply pipe connected to a hot air blower is installed on the side wall of the cylinder, a porcelain sleeve is placed inside the cylinder, the porcelain sleeve is a frustum-shaped structure, ventilation holes are opened on the porcelain sleeve, a cathode hanger of the wet electrostatic precipitator is fixedly installed in the porcelain sleeve, an air outlet cylinder is installed at the bottom of the cylinder, and the air outlet cylinder is communicated with the inner cavity of the porcelain sleeve.

[0009] Preferably, a cover is installed on the top of the cylinder, a partition is installed on the bottom of the cylinder, the cylinder includes an outer cavity and an inner cavity, the air supply pipe is connected to the inner cavity, and the porcelain sleeve is placed in the inner cavity.

[0010] Preferably, the porcelain sleeve comprises a shell fixedly connected to the partition, a top cover is installed on the top of the shell, and the top cover is fastened to the cathode suspension rod through a nut.

[0011] Preferably, the top cover is threadedly connected to the shell, and a grip is provided on the upper surface of the top cover.

[0012] Preferably, there are at least two ventilation holes evenly distributed on the top cover.

[0013] Preferably, the partition is provided with a through opening, and the through opening is used to connect the porcelain sleeve and the air outlet tube and facilitate the extension of the cathode suspension rod.

[0014] Preferably, a reverse arc portion is provided at the bottom of the air outlet tube.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model delivers pure hot air into the interior of the cylinder through the air supply pipe. The hot air flows into the interior of the porcelain sleeve from the ventilation hole and then flows out from the air outlet. During the circulation of the hot air, dust, scaling and condensed water adsorbed by the cathode suspension rod can be rolled out, thereby solving the problem of damage to the insulator due to static electricity, effectively avoiding the generation of creepage or even breakdown, ensuring the normal operation of the electric field, and thus ensuring the normal use of the wet electrostatic precipitator;

[0017] 2. The utility model sets the internal structure of the cylinder as an outer cavity and an inner cavity, which can effectively reduce the loss rate of the temperature inside the inner cavity, slow down the speed of condensation, and reduce the proportion of dust, scale and condensed water adsorbed by static electricity from the root, thereby enhancing the practicality of the overall device;

[0018] 3. The utility model provides a reverse arc portion at the bottom of the air outlet, which can disperse the hot air flowing out from the lower port of the air outlet, thereby preventing dust, scaling, and adsorbed condensed water mixed in the hot air from being adsorbed onto the cathode hanger again, thereby ensuring the cleaning functionality of the insulating device, and therefore has a very broad application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the utility model, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the overall device structure of the utility model;

[0021] Figure 2 It is a side view of the overall device of the utility model;

[0022] Figure 3 for Figure 2 Middle AA section cutaway view;

[0023] Figure 4 This is a schematic diagram of the installation structure of the cover body and the top cover of the utility model;

[0024] Figure 5 This is a schematic diagram of the ventilation hole structure of the utility model;

[0025] Figure 6 This is a schematic diagram of the port structure of the utility model;

[0026] In the figure: 1. cylinder, 101. outer cavity, 102. inner cavity, 2. air supply pipe, 3. porcelain sleeve, 301. shell, 302. top cover, 303. gripper, 4. ventilation hole, 5. cathode suspension rod, 6. air outlet, 601. anti-arc part, 7. cover, 8. partition, 9. opening. DETAILED DESCRIPTION

[0027] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0028] This specific embodiment provides a self-cleaning insulation device for a wet electrostatic precipitator, such as Figure 1-Figure 6As shown, it includes a cylinder 1, a cover body 7 is installed on the top of the cylinder 1, and the cover body 7 is snap-connected with the outside of the cylinder 1. A handle is provided on the upper surface of the cover body 7, and the operator can use the handle to pull the cover body 7 out of the cylinder 1; a partition 8 is installed at the bottom of the cylinder 1, and the partition 8 can play a role in supporting the cylinder 1; the cylinder 1 includes an outer cavity 101 and an inner cavity 102, and the outer cavity 101 and the inner cavity 102 are non-connected. An air supply pipe 2 connected to a hot air blower is installed on the side wall of the cylinder 1, and the air supply pipe 2 is connected with the inner cavity 102. The hot air blower can continuously supply pure hot air into the inner cavity 102 through the air supply pipe 2, and the outer cavity 101 can play a role in heat insulation, reducing the heat loss rate in the inner cavity 102, thereby avoiding the generation of a large amount of mist water in the inner cavity 102; a porcelain sleeve 3 is placed in the inner cavity 102.

[0029] like Figure 3-Figure 5 As shown, the porcelain sleeve 3 is a frustum-shaped structure with a hollow interior. The porcelain sleeve 3 includes a shell 301. The lower bottom surface of the shell 301 is fixedly connected to the upper surface of the partition 8. A top cover 302 is installed on the top of the shell 301. The top cover 302 is provided with a through ventilation hole 4. The ventilation holes 4 are at least two and evenly distributed on the top cover 302. The pure hot air sent from the air supply pipe 2 can enter the interior of the shell 301 through the ventilation holes 4. The cathode suspension rod 5 of the wet electrostatic precipitator is installed in the top cover 302. The top end of the cathode suspension rod 5 is fixedly connected to the top cover 302 by bolts. The bolts are provided with a plurality of bolts, all of which are threadedly connected to the outer wall of the cathode suspension rod 5, so as to fasten the cathode suspension rod 5 and the porcelain sleeve 3 together. The bottom end of the cathode suspension rod 5 passes through the partition 8.

[0030] Among them, the top cover 302 is threadedly connected to the shell 301, the outer circumferential wall of the top cover 302 is provided with a thread, and the inner circumferential wall of the shell 301 is provided with a thread. The above two threads are a matching structure, so that the top cover 302 is threadedly installed on the top of the shell 301, and a gripper 303 is provided on the upper surface of the top cover 302; the operator can hold the gripper 303 and rotate the top cover 302 to remove the top cover 302 from the shell 301, which is convenient for the operator to operate and brings convenience to subsequent use and maintenance.

[0031] like Figure 6As shown, the partition 8 is provided with a through opening 9, the diameter of which is the same as the diameter of the lower bottom surface of the shell 301, and an air outlet 6 is fixedly installed at the bottom of the partition 8, and the upper port of the air outlet 6 is the same as the diameter of the through opening 9. It can be seen that the through opening 9 is used to connect the porcelain sleeve 3 and the air outlet 6, and facilitate the cathode hanger 5 to extend from the through opening 9; after the above-mentioned pure hot air flows into the shell 301 through the ventilation hole 4, it can flow into the air outlet 6 through the through opening 9 and flow out at the lower port of the air outlet 6. In the process of pure hot air circulation, dust, scale, and condensed water adsorbed by static electricity inside the porcelain sleeve 3 and on the outer wall of the cathode hanger 5 can be taken away, and sent to the outside through the lower port of the air outlet 6, thereby avoiding affecting the porcelain sleeve 3 and the cathode hanger 5.

[0032] In addition, an anti-arc portion 601 is provided at the bottom of the air outlet 6; the anti-arc portion 601 is an arc-shaped structure with the bottom edge extending outward, which can disperse the hot air flowing out from the lower port of the air outlet 6, thereby preventing dust, scale, and adsorbed condensed water mixed in the hot air from being adsorbed onto the cathode hanger 5 again, thereby ensuring the functionality of the insulation device.

[0033] The working principle of the utility model is:

[0034] Pure hot air is introduced into the inner cavity 102 of the cylinder 1 through the air supply pipe 2, and the pure hot air can flow into the interior of the shell 301 through the ventilation hole 4. Since the high-temperature gas in the flue gas treated by the wet electrostatic precipitator will accumulate on the inner wall of the porcelain sleeve 3 and the outer wall of the cathode hanger 5, the dust and scale can be drawn in by the pure hot air, and at the same time, the condensed water formed by condensation inside is blown out through the air outlet 6, thereby ensuring that the cathode hanger 5 is not damaged; and the outer cavity 101 can play a role in maintaining temperature, reducing the rate of temperature loss in the inner cavity 102, and can effectively slow down the speed of condensation.

[0035] Since the porcelain sleeve 3 is designed as a frustum-shaped structure, after the hot air from the air supply pipe 2 enters, it can first sink to the upper surface of the partition 8, and gradually climb upward from the surface of the shell 301, so as to gather above the ventilation hole 4, and finally flow from the ventilation hole 4 to the inside of the porcelain sleeve 3; it can be seen that the design of the porcelain sleeve 3 is in line with fluid mechanics, which can maximize the flowability of hot air, thereby ensuring the self-cleaning function of the insulating device.

[0036] When the operator needs to perform routine cleaning and maintenance on the inner cavity 102, the porcelain sleeve 3 and the cathode hanger 5, the cover body 7 can be removed from the cylinder body 1, and the nut between the cathode hanger 5 and the top cover 302 can be removed, and the top cover 302 can be screwed with the gripper 303 to separate the top cover 302 from the shell 301, thereby facilitating the operator to clean the inner wall of the shell 301 and the outer wall of the cathode hanger 5, thereby ensuring the normal use of the wet electrostatic precipitator.

[0037] Compared with the prior art, the utility model delivers pure hot air into the interior of the cylinder 1 through the air supply pipe 2, and the hot air flows into the interior of the porcelain sleeve 3 from the ventilation hole 4 and then flows out from the air outlet 6. During the circulation of the hot air, dust, scaling and condensed water adsorbed by the cathode suspension rod 5 can be rolled out, thereby solving the problem of damage to the insulator due to static electricity, effectively avoiding the occurrence of creepage or even breakdown, ensuring the normal operation of the electric field, and thus ensuring the normal use of the wet electrostatic precipitator; and the internal structure of the cylinder 1 is set as an outer cavity 101 and an inner cavity 1 02, which can effectively alleviate the temperature loss rate inside the inner cavity 102, slow down the speed of condensation, and reduce the proportion of dust, scale and condensed water adsorbed by static electricity from the source, thereby enhancing the practicality of the overall device; at the same time, a reverse arc portion 601 is arranged at the bottom of the air outlet 6, which can disperse the hot air flowing out from the lower port of the air outlet 6, thereby avoiding the dust, scale and adsorbed condensed water mixed in the hot air from being adsorbed onto the cathode hanger 5 again, thereby ensuring the cleaning functionality of the insulating device, and therefore has a very broad application prospect.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-cleaning insulation device for a wet electrostatic precipitator, comprising a cylinder (1), characterized in that: An air supply pipe (2) connected to a hot air blower is installed on the side wall of the cylinder (1), a porcelain sleeve (3) is placed inside the cylinder (1), the porcelain sleeve (3) is a frustum-shaped structure, a ventilation hole (4) is opened on the porcelain sleeve (3), a cathode suspension rod (5) of a wet electrostatic precipitator is fixedly installed inside the porcelain sleeve (3), and an air outlet cylinder (6) is installed at the bottom of the cylinder (1), and the air outlet cylinder (6) is connected to the inner cavity of the porcelain sleeve (3).

2. A self-cleaning insulation device for a wet electrostatic precipitator according to claim 1, characterized in that: A cover body (7) is installed on the top of the cylinder (1), and a partition plate (8) is installed on the bottom of the cylinder (1). The cylinder (1) comprises an outer cavity (101) and an inner cavity (102). The air supply pipe (2) is connected to the inner cavity (102), and the porcelain sleeve (3) is placed in the inner cavity (102).

3. A self-cleaning insulation device for a wet electrostatic precipitator according to claim 2, characterized in that: The porcelain sleeve (3) comprises a shell (301) fixedly connected to the partition plate (8), a top cover (302) is installed on the top of the shell (301), and the top cover (302) is fastened to the cathode suspension rod (5) via a nut.

4. A self-cleaning insulation device for a wet electrostatic precipitator according to claim 3, characterized in that: The top cover (302) is threadably connected to the housing (301), and a gripper (303) is provided on the upper surface of the top cover (302).

5. A self-cleaning insulation device for a wet electrostatic precipitator according to claim 1, characterized in that: At least two ventilation holes (4) are provided and are evenly distributed on the top cover (302).

6. A self-cleaning insulation device for a wet electrostatic precipitator according to claim 2, characterized in that: The partition plate (8) is provided with a through opening (9), and the through opening (9) is used to connect the porcelain sleeve (3) and the air outlet tube (6) and facilitate the extension of the cathode suspension rod (5).

7. A self-cleaning insulation device for a wet electrostatic precipitator according to claim 1, characterized in that: The bottom of the air outlet cylinder (6) is provided with an anti-arc portion (601).

Images