Environment monitoring equipment for electric power overhaul operation

Abstract

The invention relates to environment monitoring equipment for electric power overhaul operation, which is applied to the field of electric power overhaul and comprises a stand column, the lower end of the stand column is fixedly connected with a base, the upper end of the stand column is fixedly connected with a negative pressure filter box, and the side wall of one side of the negative pressure filter box is fixedly connected with a telescopic rod. The dust monitor is used for monitoring the maintenance environment in the boiler, when the dust concentration exceeds a safety value, dust is sucked out through the negative pressure effect, the dust is filtered through the dust filter, and therefore life health of maintenance personnel is effectively guaranteed, vibration of the dust filter is achieved by controlling starting and stopping of the negative pressure draught fan, and the maintenance efficiency is improved. The self-cleaning of the dust filter is realized, the dust filtering effect is effectively improved, in addition, light curtains for warning are projected on the two sides of the inlet of the boiler under the light guide effect, so that external personnel are reminded, and the situation that the life safety of internal maintenance personnel is harmed due to misoperation of the external personnel is effectively prevented; therefore, the safety of the maintainer is further effectively improved.

Description

Technical Field

[0001] An environmental monitoring device for power maintenance operations involved in the present invention, particularly an environmental monitoring device for power maintenance operations applied to the field of power maintenance. Background Art

[0002] Equipment failures in thermal power plants have a great impact on power generation efficiency and power quality. The damage of boiler units, especially the main components of the boiler body, is the main reason for affecting the unplanned shutdown of the boiler. Therefore, it is necessary to regularly overhaul the inside of the boiler. Due to the limited space and large amount of dust inside the boiler, when personnel enter for maintenance, they must always pay attention to the environmental quality. Therefore, existing maintenance operations are equipped with environmental monitoring devices.

[0003] To solve the problem of poor maintenance environment, a certain monitoring device in the market adopts the design of setting environmental monitoring sensors and has a certain market share.

[0004] The specification of Chinese Patent CN202120258936.X discloses an environmental monitoring device for the maintenance environment of large power transformers. The monitoring device includes an interface flange connected to the transformer box body, the interface flange is connected to a valve, the valve is connected to a buffer pipe, the buffer pipe is connected to a main measurement pipe, the main measurement pipe is connected to an extension pipe through a solenoid valve, and an overflow valve is provided at the end of the extension pipe; a pressure transmitter is installed on the main measurement pipe, and the extension pipe is used to connect to a gas analyzer. This device is used for environmental monitoring and early warning during the whole process of transformer entry operation, can effectively monitor the oxygen content, gas pressure, dew point and oil mist particle level inside the transformer, and can effectively reduce the risk of operation in confined spaces and the risk of transformer moisture absorption.

[0005] The specification of Chinese Patent CN201610729360.4 discloses a safety protection device for monitoring power equipment maintenance operations. The outer surface of the electrician plastic shell of this device is provided with a solar panel, a lighting device, an oxygen content sensor, a control device, a thermostat, a detection component, a cooling fan, a power storage device, a sulfur hexafluoride sensing module, and a carbon monoxide detection module; the sulfur hexafluoride sensing module is used to sense the sulfur hexafluoride concentration in the environment and transmit the sensed data to the control device; the control device compares the sensed data, and when it exceeds the warning value, it can remind the user that the current environment is in a warning state. At the same time, the control device can transmit the smoke volume, strong light volume, temperature volume, and humidity volume exceeding the preset value to the upper computer through a wireless communication device, so that the management personnel of the upper computer can understand the internal environmental situation information of the power equipment in real time, so as to make correct commands in time and protect the safety of personnel.

[0006] Although existing monitoring devices can monitor the environment where personnel are located, they only remind personnel to leave in time by means of alarms and cannot take effective protective measures in time. Moreover, environmental monitoring only targets the internal environment where maintenance personnel are located. During the maintenance process, interference from external personnel and changes in the external environment will also interfere with the maintenance work. Summary of the Invention

[0007] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to monitor the internal and external environments during the maintenance process so as to improve the operation safety of maintenance personnel.

[0008] To solve the above problems, the present invention provides an environmental monitoring device for power maintenance operations, including a column. The lower end of the column is fixedly connected to a base, and the upper end of the column is fixedly connected to a negative pressure filtration box. One side wall of the negative pressure filtration box is fixedly connected to a telescopic rod, and the end of the telescopic rod away from the negative pressure filtration box is fixedly connected to a dust suction disc. A dust monitor is installed on the side wall of the dust suction disc. A negative pressure chamber is opened on the inner wall of the negative pressure filtration box, and the telescopic rod communicates with the negative pressure chamber. A sealing cover is hermetically connected to the negative pressure filtration box at the opening of the negative pressure chamber. A dust filter is threadedly connected to the inner wall of the negative pressure chamber, and an exhaust pipe communicating with the dust filter is fixedly connected to the side wall of the negative pressure filtration box away from the telescopic rod. A negative pressure fan is installed inside the exhaust pipe. The dust monitor includes an alarm module and an emergency discharge module, and the emergency discharge module is electrically connected to the negative pressure fan through a control processor.

[0009] In the above-mentioned environmental monitoring device for power maintenance operations, by placing the monitoring device at the boiler inlet to monitor the dust concentration inside the boiler and automatically sucking dust outwards after the dust concentration exceeds the safety threshold, the health of maintenance personnel is effectively guaranteed. The monitoring device also plays a warning role at the inlet, effectively preventing external personnel from accidentally operating and endangering the lives of maintenance personnel.

[0010] As a further improvement of the present application, a negative pressure sensor is also installed inside the negative pressure chamber, and the negative pressure sensor is electrically connected to a self-cleaning module. The self-cleaning module is also electrically connected to the negative pressure fan through a control processor. The dust filter includes a buffer pad, and a filter layer is fixedly connected to the outer side wall of the buffer pad. One end of the buffer pad is fixedly connected to a connecting sleeve communicated with the exhaust pipe, and the other end of the buffer pad is fixedly connected to a keel facing the telescopic rod. The filter layer serves to filter dust, the buffer pad serves to support the filter layer and undergo elastic deformation, the connecting sleeve is used to install the dust filter inside the negative pressure filtration box, and the keel is used to buffer the inhaled dust, effectively preventing the dust from directly hitting the filter layer. During the dust suction process, the negative pressure fan sucks out air to create a negative pressure environment inside the negative pressure chamber. The dust inside the boiler is sucked in by the dust suction disc, and the dust enters the negative pressure chamber through the telescopic rod. The filter layer filters out the dust in the air, and the purified air is discharged through the exhaust pipe. The negative pressure sensor continuously monitors the negative pressure value inside the negative pressure chamber. When the filter layer becomes blocked and causes the negative pressure value to decrease, the self-cleaning module is triggered, and then the negative pressure fan is controlled to start and stop intermittently, so that the buffer pad deforms repeatedly, thereby effectively shaking off the dust accumulated on the filter layer.

[0011] As a supplement to the further improvement of the present application, the buffer pad includes a deformable filter cylinder I in the middle, and deformable filter cylinders II are fixedly connected to both ends of the deformable filter cylinder I. A plurality of symmetrically distributed limiting rods are fixedly connected to the side wall of the connecting sleeve, and the length of the limiting rods is less than the distance between the connecting sleeve and the keel. When the filter layer becomes blocked, since the air is blocked at the filter layer, the buffer pad will be flattened under the atmospheric pressure. At this time, the buffer pad starts to deform inward from the deformable filter cylinder I. When the limiting rods abut against the keel, the buffer pad stops deforming. When the negative pressure disappears, the buffer pad will return to its original shape under the action of its own elastic force. In this way, by controlling the start and stop of the negative pressure fan, the buffer pad can be switched back and forth between deformation and recovery, thereby shaking off the dust accumulated on the filter layer.

[0012] As a supplement to the further improvement of the present application, both the deformable filter cylinder I and the deformable filter cylinders II are made of elastic materials, and the elasticity of the deformable filter cylinder I is greater than that of the deformable filter cylinders II. When the filter layer becomes blocked, the buffer pad first deforms concavely at the deformable filter cylinder I, and then the deformable filter cylinder I drives the deformable filter cylinders II to deform concavely. This can make the entire buffer pad present the maximum degree of deformation, thereby effectively improving the self-cleaning effect.

[0013] As a supplement to the further improvement of this application, a plurality of magnet pads are fixedly inlaid on the inner wall of the deformable filter cartridge I in an equally spaced and circumferentially distributed manner, and the magnetism of the plurality of magnet pads is the same. When the deformable filter cartridge I is deformed concavely, the two opposite magnet pads will generate magnetic repulsive forces with each other. On the one hand, it can prevent the deformable filter cartridge I from being deformed too much and damaging the filter layer. On the other hand, the magnetic repulsive force can be used to increase the speed and strength of the deformable filter cartridge I to restore its deformation, thereby improving the vibration effect and effectively enhancing the self-cleaning effect.

[0014] As a further improvement of this application, installation cavities are provided on both inner walls of the negative pressure filtration box located on both sides of the negative pressure chamber, and a spotlight is installed on the inner wall of the installation cavity. A light beam rod penetrating into the interior of the installation cavity is fixedly connected to the side wall of the negative pressure filtration box facing the spotlight, and a diffuser head is fixedly connected to the end of the light beam rod away from the negative pressure filtration box. After the monitoring device is placed at the inlet of the boiler, the light emitted by the spotlight irradiates on the light beam rod, and the light is then transmitted by the light beam rod to the diffuser head, and the diffuser head diverges the light, thereby projecting two light curtains at the inlet of the boiler. The light curtains play a warning role externally, reminding external personnel to pay attention to the maintenance personnel inside and effectively ensuring the safety of the maintenance personnel.

[0015] As a supplement to the further improvement of this application, the light beam rod includes an outer sheath, and a light guide rod is fixedly inlaid inside the sheath. The light guide rod plays a role in guiding light, guiding the light emitted by the spotlight to the diffuser head, and the sheath plays a role in protecting the light guide rod and blocking light.

[0016] As a further improvement of this application, the diffuser head includes a hemispherical seat, and a plurality of optical fiber guides are fixedly inlaid on the inner wall of the hemispherical seat. The plurality of optical fiber guides are distributed in an up-and-down scattering manner. The hemispherical seat plays a role in blocking light, and the optical fiber guides diverge the light outward, projecting light curtains on both sides of the boiler inlet, thereby playing a warning role.

[0017] As another improvement of this application, the telescopic rod includes a plurality of sleeved tubes, and the end of the previous tube is fixedly connected with a sealing ring that is hermetically slidably connected to the inner wall of the next tube. The length of the telescopic rod is adjusted by moving the tubes, so that the dust monitor can extend into the interior of the boiler for dust monitoring and is also convenient for maintenance personnel to operate and adjust.

[0018] As another improvement of this application, the sealing ring includes a sealing gasket, and an elastic pre-tightening ring is fixedly connected to the inner side of the sealing gasket. The sealing gasket is hermetically slidably connected to the inner wall of the tube, ensuring the sealing performance at the connection between the tubes, thereby maintaining the negative pressure environment, and the elastic pre-tightening ring relies on the elastic force to make the sealing gasket closely fit with the inner wall of the tube.

[0019] In summary, a dust monitor is used to monitor the maintenance environment inside the boiler. When the dust concentration exceeds the safety value, the dust is sucked out by the negative pressure effect, and the dust is filtered by a dust filter, thus effectively protecting the life and health of maintenance personnel. The vibration of the dust filter is realized by controlling the start and stop of the negative pressure fan, so as to realize the self-cleaning of the dust filter, thereby effectively improving the dust filtering effect. In addition, the light guiding effect is used to project a warning light curtain on both sides of the boiler inlet to remind the personnel outside, effectively preventing the external personnel from misoperating and endangering the life safety of the internal maintenance personnel, and further effectively improving the safety of the maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Rear perspective view of the equipment according to the first embodiment of the present application; Figure 2 Front perspective view of the equipment according to the first embodiment of the present application; Figure 3 Top view of the equipment according to the first embodiment of the present application; Figure 4 Stereogram of the dust filter according to the first embodiment of the present application; Figure 5 Front view of the dust filter before deformation according to the first embodiment of the present application; Figure 6 Front view of the dust filter after deformation according to the second embodiment of the present application; Figure 7 Cross-sectional view of the dust filter before deformation according to the second embodiment of the present application; Figure 8 Cross-sectional view of the dust filter after deformation according to the second embodiment of the present application; Figure 9 Cross-sectional view of the diffuser head according to the second embodiment of the present application; Figure 10 Cross-sectional view of the telescopic rod according to the first embodiment of the present application; Figure 11 Cross-sectional view of the sealing ring according to the first embodiment of the present application; Figure 12 Schematic diagram of the positional relationship between the buffer pad and the filter layer according to the second embodiment of the present application.

[0021] Explanation of the reference numerals in the drawings: 1 Column, 101 Base, 2 Negative Pressure Filter Box, 201 Negative Pressure Chamber, 202 Installation Chamber, 3 Telescopic Rod, 301 Sleeve, 302 Sealing Ring, 3021 Sealing Ring, 3022 Elastic Preloading Ring, 4 Dust Suction Disk, 5 Dust Monitor, 6 Sealing Cover, 7 Dust Filter, 701 Buffer Pad, 7011 Deformable Filter Cartridge 1, 7012 Deformable Filter Cartridge 2, 7013 Limit Rod, 7014 Magnetic Pad, 702 Keel, 703 Connecting Sleeve, 704 Filter Layer, 8 Exhaust Pipe, 9 Spotlight, 10 Light Bar, 1001 Sheath, 1002 Light Guide Rod, 11 Diffuser Head, 1101 Hemispherical Seat, 1102 Optical Fiber. Specific Embodiment

[0022] The following describes in detail two embodiments of the present application with reference to the accompanying drawings.

[0023] The First Embodiment: As shown in FIGS. 1, 10 and Figure 11 It can be seen that it includes a column 1, and the lower end of the column 1 is fixedly connected with a base 101, the upper end of the column 1 is fixedly connected with a negative pressure filter box 2, one side wall of the negative pressure filter box 2 is fixedly connected with a telescopic rod 3, the telescopic rod 3 includes a plurality of sleeved sleeves 301, and the end of the previous sleeve 301 is fixedly connected with a sealing ring 302 that is hermetically slidably connected to the inner wall of the next sleeve 301. By moving the sleeve 301, the length of the telescopic rod 3 can be adjusted, so that the dust monitor 5 can extend into the boiler to monitor dust, and it is also convenient for maintenance personnel to operate and adjust. The sealing ring 302 includes a sealing ring 3021 (preferably made of polyurethane elastic material, and other materials can also be selected according to actual needs), and an elastic preloading ring 3022 (preferably made of rubber material, and other materials can also be selected according to actual needs) is fixedly connected to the inner side of the sealing ring 3021. The sealing ring 3021 is hermetically slidably connected to the inner wall of the sleeve 301 to ensure the sealing performance at the connection between the sleeve 301 and the sleeve 301, thereby maintaining a negative pressure environment, and the elastic preloading ring 3022 relies on the elastic force to make the sealing ring 3021 closely fit the inner wall of the sleeve 301; Figure 2 and 3As shown, one end of the telescopic rod 3 far away from the negative pressure filter box 2 is fixedly connected with a dust suction disc 4. A dust monitor 5 (the specific model is selected according to actual needs) is installed on the side wall of the dust suction disc 4. A negative pressure cavity 201 is formed on the inner wall of the negative pressure filter box 2, and the telescopic rod 3 communicates with the negative pressure cavity 201. A sealing cover 6 is hermetically connected to the opening of the negative pressure filter box 2 at the negative pressure cavity 201. A dust filter 7 is threadedly connected to the inner wall of the negative pressure cavity 201, and an exhaust pipe 8 communicating with the dust filter 7 is fixedly connected to the side wall of the negative pressure filter box 2 far away from the telescopic rod 3. A negative pressure fan (the specific model is selected according to actual needs) is installed inside the exhaust pipe 8. The dust monitor 5 includes an alarm module and an emergency discharge module, and the emergency discharge module is electrically connected to the negative pressure fan through a control processor (the specific connection structure and working principle are well-known technologies for those skilled in the relevant art and will not be described in detail here); Figure 2 , 3 As shown, installation cavities 202 are formed on both inner walls of the negative pressure filter box 2 at the negative pressure cavity 201, and a spotlight 9 (the specific model is selected according to actual needs) is installed on the inner wall of the installation cavity 202. A light guide rod 10 penetrating into the interior of the installation cavity 202 is fixedly connected to the side wall of the negative pressure filter box 2 facing the spotlight 9, and a diffuser head 11 is fixedly connected to one end of the light guide rod 10 far away from the negative pressure filter box 2. After the monitoring device is placed at the entrance of the boiler, the light emitted by the spotlight 9 irradiates on the light guide rod 10, and the light is then transmitted by the light guide rod 10 to the diffuser head 11, and the diffuser head 11 diverges the light, thereby projecting two light curtains at the entrance of the boiler. The light curtains play a warning role externally, reminding external personnel to pay attention to the maintenance personnel inside and effectively ensuring the safety of the maintenance personnel; Figure 3 As shown, the light guide rod 10 includes an outer sheath 1001, and a light guide rod 1002 is fixedly embedded inside the sheath 1001. The light guide rod 1002 plays a role in guiding light, guiding the light emitted by the spotlight 9 to the diffuser head 11, and the sheath 1001 plays a role in protecting the light guide rod 1002 and blocking light; Figure 9 As shown, the diffuser head 11 includes a hemispherical seat 1101, and a plurality of optical fibers 1102 are fixedly embedded inside the hemispherical seat 1101. The plurality of optical fibers 1102 are distributed in an up-and-down scattering manner. The hemispherical seat 1101 plays a role in blocking light, and the optical fibers 1102 diverge and emit the light outward, projecting light curtains on both sides of the boiler entrance, thereby playing a warning role.

[0024] The second embodiment: Figure 4 , 12It is shown that a negative pressure sensor (the specific model is selected according to actual requirements) is also installed inside the negative pressure chamber 201, and the negative pressure sensor is electrically connected to a self-cleaning module. The self-cleaning module is also electrically connected to the negative pressure fan through a control processor. The dust filter 7 includes a buffer pad 701, and a filter layer 704 is fixedly connected to the outer side wall of the buffer pad 701. One end of the buffer pad 701 is fixedly connected to a connecting sleeve 703 communicated with the exhaust pipe 8, and the other end of the buffer pad 701 is fixedly connected to a keel 702 facing the telescopic rod 3. The filter layer 704 plays a role in filtering dust, the buffer pad 701 plays a role in supporting the filter layer 704 and elastic deformation, the connecting sleeve 703 is used for installing the dust filter 7 inside the negative pressure filter box 2, and the keel 702 is used for buffering the sucked dust, effectively preventing the dust from directly hitting the filter layer 704. During the dust collection process, the negative pressure fan sucks out air to create a negative pressure environment inside the negative pressure chamber 201. The dust in the boiler is sucked in by the dust suction disc 4, and the dust enters the negative pressure chamber 201 through the telescopic rod 3. The filter layer 704 filters out the dust in the air, and the purified air is discharged through the exhaust pipe 8. The negative pressure sensor monitors the negative pressure value inside the negative pressure chamber 201 in real time. When the filter layer 704 is blocked and the negative pressure value decreases, the self-cleaning module is triggered, and then the negative pressure fan is controlled to start and stop intermittently, so that the buffer pad 701 deforms repeatedly, thereby effectively shaking off the dust accumulated on the filter layer 704; Figure 5 、 6It is shown that the buffer pad 701 includes a deformable filter cartridge 7011 in the middle, and both ends of the deformable filter cartridge 7011 are fixedly connected with deformable filter cartridges 7012. The deformable filter cartridge 7011 and the deformable filter cartridges 7012 are both made of elastic materials (preferably rubber materials, and other materials can also be selected according to actual needs). Moreover, the elasticity of the deformable filter cartridge 7011 is greater than that of the deformable filter cartridges 7012. When the filter layer 704 is blocked, the buffer pad 701 first shows a concave deformation at the deformable filter cartridge 7011, and then the deformable filter cartridge 7011 drives the deformable filter cartridges 7012 to deform concavely, so that the entire buffer pad 701 can present the maximum degree of deformation, thereby effectively improving the self-cleaning effect. The side wall of the connecting sleeve 703 is fixedly connected with a plurality of symmetrically distributed limiting rods 7013, and the length of the limiting rods 7013 is less than the distance between the connecting sleeve 703 and the keel 702. When the filter layer 704 is blocked, since the air is blocked at the filter layer 704, the buffer pad 701 will be flattened under the atmospheric pressure. At this time, the buffer pad 701 starts to deform concavely inward from the deformable filter cartridge 7011. When the limiting rod 7013 abuts against the keel 702, the buffer pad 701 stops deforming. When the negative pressure disappears, the buffer pad 701 will return to its original state under the action of its own elastic force. In this way, by controlling the start and stop of the negative pressure fan, the buffer pad 701 can be switched back and forth between deformation and recovery, so as to shake off the dust accumulated on the filter layer 704; Figure 7 , 8 It is shown that a plurality of magnet pads 7014 evenly distributed in a circumferential direction at equal intervals are also fixedly embedded in the inner wall of the deformable filter cartridge 7011, and the magnetism of the plurality of magnet pads 7014 is the same. When the deformable filter cartridge 7011 deforms concavely, two opposite magnet pads 7014 will generate magnetic repulsive forces with each other. On the one hand, it can prevent the deformable filter cartridge 7011 from deforming too much and damaging the filter layer 704. On the other hand, the magnetic repulsive force can be used to increase the speed and strength of the deformable filter cartridge 7011 to recover its deformation, so as to improve the vibration effect and effectively improve the self-cleaning effect.

[0025] Combined with the current actual needs, the above-mentioned implementation manner adopted in this application, the protection scope is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. An environmental monitoring device for electric power maintenance operations, characterized in that: It includes a vertical column (1), and a base (101) is fixedly connected to the lower end of the vertical column (1). The upper end of the vertical column (1) is fixedly connected to a negative pressure filtration box (2). One side wall of the negative pressure filtration box (2) is fixedly connected to a telescopic rod (3), and the end of the telescopic rod (3) far from the negative pressure filtration box (2) is fixedly connected to a dust suction disc (4). A dust monitor (5) is installed on the side wall of the dust suction disc (4). A negative pressure chamber (201) is formed on the inner wall of the negative pressure filtration box (2), and the telescopic rod (3) communicates with the negative pressure chamber (201). A sealing cover (6) is hermetically connected to the opening of the negative pressure filtration box (2) where the negative pressure chamber (201) is located. A dust filter (7) is threadedly connected to the inner wall of the negative pressure chamber (201), and an exhaust pipe (8) communicating with the dust filter (7) is fixedly connected to the side wall of the negative pressure filtration box (2) far from the telescopic rod (3). A negative pressure fan is installed inside the exhaust pipe (8). The dust monitor (5) includes an alarm module and an emergency discharge module, and the emergency discharge module is electrically connected to the negative pressure fan through a control processor.

2. An environmental monitoring device for electric power maintenance operations according to claim 1, characterized in that: A negative pressure sensor is also installed inside the negative pressure chamber (201), and a self-cleaning module is electrically connected to the negative pressure sensor. The self-cleaning module is also electrically connected to the negative pressure fan through a control processor. The dust filter (7) includes a buffer pad (701), and a filter layer (704) is fixedly connected to the outer side wall of the buffer pad (701). One end of the buffer pad (701) is fixedly connected to a connecting sleeve (703) communicating with the exhaust pipe (8), and the other end of the buffer pad (701) is fixedly connected to a keel (702) facing the telescopic rod (3).

3. An environmental monitoring device for electric power maintenance operations according to claim 2, characterized in that: The buffer pad (701) includes a deformable filter cylinder one (7011) in the middle, and deformable filter cylinders two (7012) are fixedly connected to both ends of the deformable filter cylinder one (7011). A plurality of symmetrically distributed limiting rods (7013) are fixedly connected to the side wall of the connecting sleeve (703), and the length of the limiting rods (7013) is less than the distance between the connecting sleeve (703) and the keel (702).

4. An environmental monitoring device for electric power maintenance operations according to claim 3, characterized in that: Both the deformable filter cylinder one (7011) and the deformable filter cylinders two (7012) are made of elastic materials, and the elasticity of the deformable filter cylinder one (7011) is greater than that of the deformable filter cylinders two (7012).

5. An environmental monitoring device for electric power maintenance operations according to claim 4, characterized in that: A plurality of magnet pads (7014) evenly distributed in a circumferential direction at equal intervals are fixedly embedded in the inner wall of the deformable filter cylinder one (7011), and the magnetism of the plurality of magnet pads (7014) is the same.

6. An environmental monitoring device for electric power maintenance operations according to claim 1, characterized in that: Installation cavities (202) are formed on both inner walls of the negative pressure filtration box (2) where the negative pressure chamber (201) is located, and a spotlight (9) is installed on the inner wall of the installation cavity (202). A light beam rod (10) penetrating into the interior of the installation cavity (202) is fixedly connected to the side wall of the negative pressure filtration box (2) facing the spotlight (9), and a diffuser head (11) is fixedly connected to the end of the light beam rod (10) far from the negative pressure filtration box (2).

7. An environmental monitoring device for electric power maintenance operations according to claim 6, characterized in that: The light beam rod (10) includes an outer sheath (1001), and a light guide rod (1002) is fixedly embedded in the interior of the sheath (1001).

8. An environmental monitoring device for electric power maintenance operations according to claim 6, characterized in that: The diffuser head (11) includes a hemispherical base (1101), and a plurality of optical fibers (1102) are fixedly embedded in the inner wall of the hemispherical base (1101), and the plurality of optical fibers (1102) are distributed in an up-and-down scattering manner.

9. An environmental monitoring device for electric power maintenance operations according to claim 1, characterized in that: The telescopic rod (3) includes a plurality of sleeved tubes (301), and a sealing ring (302) fixedly connected to the end of the previous tube (301) and sealingly slidably connected to the inner wall of the next tube (301) is provided.

10. An environmental monitoring device for electric power maintenance operations according to claim 9, characterized in that: The sealing ring (302) includes a sealing gasket (3021), and an elastic pre-tightening ring (3022) is fixedly connected to the inner side of the sealing gasket (3021).

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