CN218282131U - Protection device for electric dust collector - Google Patents

Abstract

The utility model provides a protection device structure for electrostatic precipitator, protection device includes: the device comprises a hot air pipeline, an insulation can, an insulating porcelain bushing and a heating device; the hot air pipeline is communicated with the heat insulation box; the heat insulation box cover is arranged on the insulating porcelain sleeve, and the interior of the heat insulation box is communicated with the insulating porcelain sleeve; the insulating porcelain bushing is arranged above the flue port and used for fixing a dust removal assembly in the electric dust remover; the heating device is coupled with the insulating porcelain sleeve to gasify acidic impurities attached to the insulating porcelain sleeve; in the running process of the electric dust collector, the hot air pipeline continuously provides high-pressure hot air for the heat insulation box, so that the pressure difference between the inside and the outside of the insulating porcelain sleeve is maintained. The utility model discloses an insulation can and hot-blast pipeline stabilize inside and outside atmospheric pressure difference, heating device of insulating porcelain cover heat the insulating porcelain cover and heat up to make the acidic impurity gasification of insulating porcelain cover surface adhesion and along with in the hot-blast flue of converging of high pressure.

Description

Protection device for electric dust collector

Technical Field

The utility model belongs to the technical field of the electricity removes, especially, relate to a protection device for electrostatic precipitator.

Background

The electric dust collector is a necessary corollary equipment of a thermal power plant, and has the function of removing particle smoke dust in the smoke discharged by a coal-fired boiler, thereby greatly reducing the smoke dust amount discharged into the atmosphere.

When the existing electric dust removal device is used, flue gas discharged by a coal-fired boiler often carries a large amount of acidic impurities to enter the electric dust remover along with a flue opening, and the acidic impurities can be attached to and corrode parts in the electric dust remover. Most of the acidic impurities carried in the moisture are ammonium bisulfate. Ammonium bisulfate has the characteristic of being readily hygroscopic, which further exacerbates the corrosive effects of acidic impurities. These factors cause the components in the electric dust collector to be frequently replaced, and the electric generator set cannot be stopped to replace the components in the electric dust collector under the operation condition, which further affects the normal operation of the whole thermal power plant.

SUMMERY OF THE UTILITY MODEL

In order to solve the background art in the electric dust collector in the insulating insulator need frequently change to influence the problem of the normal work of thermal power factory, the utility model provides a following technical scheme:

a protection device for an electric precipitator, the protection device comprising: the device comprises a hot air pipeline, an insulation can, an insulating porcelain sleeve and a heating device; the hot air pipeline is communicated with the heat preservation box; the insulation box cover is arranged on the insulation porcelain sleeve, and the interior of the insulation box is communicated with the insulation porcelain sleeve; the insulating porcelain bushing is arranged above the flue port and used for fixing a dust removal assembly in the electric dust remover; the heating device is coupled with the insulating porcelain sleeve to gasify acidic impurities attached to the insulating porcelain sleeve; in the running process of the electric dust collector, the hot air pipeline continuously provides high-pressure hot air into the heat insulation box, so that the pressure difference between the inside and the outside of the insulating porcelain sleeve is maintained.

Wherein, the protection device also comprises an electric heater and a fan; the electric heater is coupled with the outer pipe wall of the hot air pipeline and is used for heating the gas in the hot air pipeline; the fan is arranged on the hot air pipe to increase the pressure of the gas flowing into the hot air pipeline.

Furthermore, the hot air pipeline comprises a plurality of air inlet sections, a heating section and a plurality of air outlet sections; each air inlet section is provided with one fan, and each air inlet section is connected with the heating section through the multi-way adapter interface; the peripheral wall of the heating section is coupled with the electric heater; each air outlet section is communicated with the heating section, and each air outlet section is communicated with one heat preservation box.

Furthermore, a baffle plate used for switching each air inlet section and each heating section is arranged in the multi-way switching port.

Further, an air inlet of the fan is provided with a filtering mechanism.

Furthermore, the outer pipe wall of the hot air pipeline is provided with a heat insulation layer.

Furthermore, each air outlet section is internally provided with a control valve for controlling the conduction of the air outlet section.

Has the beneficial effects that: the utility model discloses an inside and outside atmospheric pressure difference, the heating device of insulation porcelain cover are stabilized to insulation porcelain cover by insulation can and hot-blast pipe heats up to make the gasification of the acid impurity of insulation porcelain cover surface adhesion and along with in the high-pressure hot-blast interflow flue.

Drawings

Fig. 1 is a schematic structural diagram of a protection device for an electric dust collector according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a ventilation duct according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the patent and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be constructed in a particular manner of operation, and are not to be considered limiting of the patent.

Fig. 1 is a schematic structural diagram of a protection device for an electric dust collector according to an embodiment of the present invention.

Referring to fig. 1, a protection device for an electric precipitator according to an embodiment of the present invention includes: a hot air pipeline 1, a heat preservation box 2, an insulating porcelain bushing 3 and a heating device 4. Wherein, the hot air pipeline 1 is communicated with the heat preservation box 2, and high-pressure hot air flows in the hot air pipeline 1. The heat preservation box 2 is covered above the insulating porcelain bushing 3, and the interior of the heat preservation box 2 is communicated with the insulating porcelain bushing 3. Insulating insulator 3 is fixed to be located the flue port mouth top, and insulating insulator 3 internal fixation has dust removal subassembly 5 in the electrostatic precipitator. The heating device 4 is arranged in the cavity of the heat insulation box 2, and the heating device 4 is coupled with the insulating porcelain sleeve 3.

Specifically, the dust removing assembly 5 includes a conductive platen 51, a conductive rod 52, and a cathode frame 53. The insulating porcelain bushing 3 is tubular with an isosceles trapezoid cross section. Wherein, the top of insulating insulator 3 is fixed with electrically conductive pressure disk 51 butt, and the bottom of insulating insulator 3 is fixed to be located the flue opening top. Wherein, the conductive pressure plate 51 is provided with a through hole 511 for conducting the insulating porcelain bushing 3 and the heat preservation box 2. The conductive pressure plate 51 is fixedly connected with one end of the conductive rod 52, and the conductive rod 52 is kept vertical in the cavity of the insulating porcelain sleeve 3. The other end of the conductive rod 52 is fixedly connected to the cathode frame 53, thereby suspending the cathode frame 53 in the flue.

In the operation process of the whole electric dust remover, the dust removing component 5 in the electric dust remover forms an electric field, and dust carried in smoke circulating in the flue is collected in the flue under the action of the electric field force and then is removed. Acid impurities overflowing from the flue are attached to the surface of the insulating porcelain bushing 3 and then heated and gasified by the heating device 4. The hot air pipeline 1 continuously fills high-pressure hot air into the heat insulation box 2, and the high-pressure hot air flows into the flue from the heat insulation box 2 along with the insulating porcelain bushing 3, so that the gasified acid impurities are removed from the surface of the insulating porcelain bushing 3.

Fig. 2 is a schematic structural diagram of a hot air duct according to an embodiment of the present invention.

Referring to fig. 2, specifically, the protection device further includes an electric heater 6 and a fan 7. Wherein the electric heater 6 is coupled to the outer tube wall of the hot air duct 1, thereby increasing the temperature of the gas in the hot air duct 1. The fan 7 is arranged on the hot air pipeline 1, so that the gas pressure of external air entering the heat insulation box 2 through the hot air pipeline 1 is enhanced.

Specifically, the hot air duct 1 includes a plurality of air inlet sections 11, a heating section 12 and a plurality of air outlet sections 13. Wherein, every air inlet section 11 all is equipped with a fan 7 to every air inlet section 11's one end all links to each other with the export of fan 7, thereby inputs the high-pressure gas in every air inlet section 11 in the heating section 12. The outer peripheral wall of the heating section 12 is in contact with the electric heater 6, and the heated high-pressure gas is delivered into each air outlet section 13. One end of each air outlet section 13 is communicated with one heat preservation box 2, so that heated high-pressure hot air is conveyed into each heat preservation box 2. Preferably, each air intake section 11 is communicated with the heating section 12 through a multi-way adapter. Wherein, a baffle plate for switching the conduction relation between the heating section 12 and the air inlet section 11 is arranged in the multi-way adapter. Further, in the present embodiment, a filter mechanism 71 for filtering dust in the air is disposed in the air inlet of the fan 7, and the filter mechanism 71 includes, but is not limited to, a filter screen or a filter plug.

In the process that each air inlet section 11 enters air towards the heating section 12, the baffle in the multi-way adapter controls the conduction condition of each air inlet section 11, so that the gas output by the fan 7 is prevented from leaking through another air inlet section 11, and the pressure in the whole air inlet section 11 is reduced. In this embodiment, the multi-way adapter is a three-way adapter.

In this embodiment, the outer wall of the hot air duct 1 is provided with a heat insulating layer, each air outlet section 13 is provided with a control valve 131 for controlling the conduction between the air outlet section 13 and the heat insulation box 2, and a plug board door 111 is arranged between each air inlet section 11 and the multi-way connector 8. In the process of air intake of each air intake section 11, if a certain air intake section 11 has a fault, the air intake of the certain air intake section 11 is stopped by closing the inserting plate door 111 first. After the air inlet section 11 with the fault stops air inlet, the baffle in the multi-way interface 8 rotates, so that the operation is switched to be continued by another air inlet section 11.

To sum up, the utility model discloses an inside and outside atmospheric pressure difference, the heating device of insulation porcelain cover are stabilized to insulation porcelain cover heats up to make the gasification of the adnexed acid impurity of insulation porcelain cover surface and follow in the hot-blast flue that converges of high pressure. Furthermore, the arrangement of the fan ensures that the high-pressure hot air flowing into the insulation can has certain pressure, so that pressure difference is formed inside and outside the insulating porcelain bushing rapidly.

The foregoing description has described certain embodiments of the invention. Other embodiments are within the scope of the following claims.

The terms "exemplary," "example," and the like, as used throughout this specification, mean "serving as an example, instance, or illustration," and do not mean "preferred" or "advantageous" over other embodiments. The detailed description includes specific details for the purpose of providing an understanding of the described technology. However, the techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described embodiments.

The above describes in detail optional embodiments of the present invention with reference to the drawings, however, the embodiments of the present invention are not limited to the details in the above embodiments, and within the technical concept scope of the embodiments of the present invention, various simple modifications can be performed on the technical solution of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.

The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the description is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A protection device for electrostatic precipitator, its characterized in that, protection device includes: a hot air pipeline (1), an insulation can (2), an insulating porcelain bushing (3) and a heating device (4); the hot air pipeline (1) is communicated with the heat preservation box (2); the heat insulation box (2) is covered on the insulating porcelain sleeve (3), and the interior of the heat insulation box (2) is communicated with the insulating porcelain sleeve (3); the insulating porcelain bushing (3) is arranged above the flue port and used for fixing a dust removal assembly (5) in the electric dust remover; the heating device (4) is coupled with the insulating porcelain bushing (3) to gasify acidic impurities attached to the insulating porcelain bushing (3); in the running process of the electric dust collector, the hot air pipeline (1) continuously provides high-pressure hot air into the heat insulation box (2), so that the pressure difference between the inside and the outside of the insulating porcelain sleeve (3) is maintained.

2. The protection device for electric precipitators according to claim 1 further including an electric heater (6) and a fan (7); the electric heater (6) is coupled with the outer pipe wall of the hot air pipe (1), and the electric heater (6) is used for heating the gas in the hot air pipe (1); the fan (7) is arranged on the hot air pipe to increase the pressure of the gas flowing into the hot air pipeline (1).

3. The protection device for electric dust collectors according to claim 2, wherein the hot air duct (1) comprises a plurality of air inlet sections (11), a heating section (12) and a plurality of air outlet sections (13); each air inlet section (11) is provided with one fan (7), and each air inlet section (11) is connected with the heating section (12) through the multi-way adapter (8); the peripheral wall of the heating section (12) is coupled with the electric heater (6); each air outlet section (13) is communicated with the heating section (12), and each air outlet section (13) is communicated with one heat preservation box (2).

4. The protection device for the electric dust collector as claimed in claim 3, wherein a baffle for switching each air inlet section (11) and the heating section (12) is arranged in the multi-way adapter (8).

5. The protection device for electric precipitators according to claim 2 characterized in that the inlet of the fan (7) is provided with a filter means (71).

6. The protection device for the electric dust collector as claimed in claim 3, wherein the outer pipe wall of the hot air pipeline (1) is provided with an insulating layer.

7. The protection device for the electric dust collector as claimed in claim 3, wherein a control valve (131) for controlling the conduction of the air outlet section (13) is arranged in each air outlet section (13).

8. The protection device for the electric dust collector as claimed in claim 3, wherein each air inlet section (11) is provided with a plugboard door (111) for controlling the conduction of the air inlet section (11).

Images