Dustproof device for high-voltage power distribution of thermal power plant
By using dust trapping power grid and suspended cleaning structure in the high-voltage distribution system of thermal power plants, the insulation deterioration and heat dissipation channel blockage caused by dust intrusion are solved, automatic dust cleaning and temperature monitoring are achieved, and the stable operation of the equipment is ensured.
Patent Information
- Application Number
- CN202510561408.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2025-07-22
AI Technical Summary
In the high-voltage distribution system of thermal power plants, dust is prone to intrusion into the surface of the equipment, causing the insulation layering and the blockage of the heat dissipation channel, causing the equipment temperature rise rate to increase and the risk of local overheating insulation breakdown.
The dust capture power grid and suspended cleaning structure are adopted, and the gradient charge adsorption field is constructed using high-voltage ionization technology, which absorbs dust particles, and automatically cleans the dust capture power grid through the suspended cleaning structure, combining temperature sensors and acoustic alarms for real-time monitoring and intervention.
It effectively avoids the risks of insulation deterioration and local overheating caused by dust accumulation, maintains the air-cooled heat dissipation efficiency of the core operating components of the thermal power, reduces the need for manual intervention, and avoids the surge in air resistance and heat dissipation attenuation of traditional filter dust removal.
Smart Images
Figure CN120357294A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of auxiliary equipment in thermal power plants, and in particular to a dust-proof device for high-voltage power distribution in thermal power plants. Background Art
[0002] The high-voltage power distribution system in a thermal power plant is the core hub for power distribution and transmission. Its core mission is to boost the low voltage (6 - 20 kV) at the generator outlet to 35 - 500 kV through a step-up transformer and efficiently and safely transmit the electric energy to the power grid or in-plant loads through high-voltage equipment. This system consists of a step-up transformer, high-voltage switchgear, busbars, instrument transformers, lightning arresters and other precision equipment to form a collaborative network: the step-up transformer reduces long-distance transmission losses through the principle of electromagnetic induction; the switchgear constructs a fault isolation barrier with circuit breakers and disconnectors; the busbars, as the arteries of electric energy, achieve multi-way distribution; the instrument transformers provide accurate monitoring of electrical parameters. However, the high-temperature environment generated by the current thermal effect during the operation of core equipment poses strict requirements on the heat dissipation efficiency. Although the existing air-cooling solutions can achieve air convection cooling, the open structure easily allows dust to invade the surface of the equipment along with the air flow, forming a vicious cycle of insulating layer dust accumulation and heat dissipation channel blockage, increasing the equipment temperature rise rate by 30% - 50%, and even posing a risk of local overheating and insulation breakdown. In response to the above problems, there may already be technical means to solve them in the prior art, but this case wants to provide an alternative or replacement technical solution. Summary of the Invention
[0003] The technical solution of the present invention to achieve the above object is: a dust-proof device for high-voltage power distribution in a thermal power plant, comprising: a device covering shell, core operating components of a thermal power plant, and a pair of winding and unwinding hubs. The pair of winding and unwinding hubs are respectively installed on the device covering shell, the core operating components of the thermal power plant are installed inside the device covering shell, a power distribution equipment heat dissipation and dust collection structure is installed inside the device covering shell, a pair of suspended cleaning structures are respectively installed on the pair of winding and unwinding hubs, and the power distribution equipment heat dissipation and dust collection structure includes: a plurality of air guide shells, a plurality of air guide fans, a pair of dust-proof nets on the shell, a pair of dust collection power grids, and a plurality of net body mounting blocks; The plurality of air guide shells are respectively installed inside the device covering shell, the plurality of air guide fans are respectively installed inside the plurality of air guide shells, the pair of dust-proof nets on the shell are respectively installed on the device covering shell, the pair of dust collection power grids are respectively connected to the plurality of net body mounting blocks, the plurality of net body mounting blocks are respectively installed on the device covering shell, and the plurality of net body mounting blocks are respectively provided with a plurality of power grid swing components; It should be noted that in the above, when the core operating components of thermal power operate inside the device's covering shell, heat will be released. Multiple air guiding fans in multiple air guiding casings operate, causing air to enter the device's covering shell from the dust collection grid and the dust-proof net on the shell on one side. After taking away the heat of the core operating components of thermal power, the air flows out from the dust collection grid and the dust-proof net on the shell on the other side. At the same time, a certain amount of current is applied to the dust collection grid, causing the dust flowing in the air to be adsorbed on the dust collection grid. After accumulation, it is cleaned by the suspended cleaning structure on a pair of winding and releasing hubs, greatly reducing the dust accumulated on the core operating components of thermal power inside the device's covering shell and maintaining the stability of the cooling efficiency. The floating dust can be slightly cleaned by workers entering through the maintenance hatch provided on the device's covering shell. The temperature sensor provided inside the device's covering shell can monitor the temperature inside the device's covering shell. When the temperature is too high, it can alarm to the outside through the sound alarm provided on the device's covering shell, prompting engineers or workers to intervene in a timely manner.
[0004] Preferably, the grid swing assembly includes: an in-block placement groove, a reciprocating traction spring, and a pair of driving displacement electromagnets; The in-block placement groove is formed on the mesh body placement block. The reciprocating traction spring is installed in the in-block placement groove and is connected to the dust collection grid. A pair of driving displacement electromagnets are respectively inserted on the reciprocating traction spring; It should be noted that in the above, when the four reciprocating traction springs installed in the four mesh body placement blocks are fully connected to the dust collection grid, current is applied to the driving displacement electromagnets in the reciprocating traction springs in the in-block placement grooves on one side respectively, causing the corresponding pair of driving displacement electromagnets in the reciprocating traction springs to generate suction or repulsive forces, and then causing the reciprocating traction springs to contract or extend inside the mesh body placement blocks. As a result, the dust collection grid on one side is slowly shaken up and down under the coordinated push of a pair of mesh body placement blocks, enabling the suspended cleaning structure to cooperate with the shaken dust collection grid, fully cleaning the dust accumulated on the dust collection grid and reducing dust residue.
[0005] Preferably, the suspended cleaning structure includes: a suspension cable, a cable placement block, a counterweight ball, and a cleaning component housing; The suspension cable is connected to the winding and releasing hub and is also connected to the cable placement block. The cable placement block is installed on the cleaning component housing. The counterweight ball is installed on the cleaning component housing. A reciprocating driving cleaning component is provided inside the cleaning component housing; It should be noted that in the above, by using the winch provided on the reel release hub, the suspension cable can be wound and released, so that the cleaning component housing after being weighted and increased by the counterweight ball can rely on the cable mounting block and slowly descend along the dust collection grid, and then be lifted and reset again, repeating this cycle.
[0006] Preferably, the reciprocating drive cleaning assembly includes: a cleaning power motor, a transmission rotating shaft, a deflection link, a sliding mounting table, a pair of connecting links, a pair of transmission rack bars, a pair of transmission gears, a pair of reciprocating swing rotating shafts, a pair of reciprocating rotating turntables, and a pair of fitting brushing layers; The cleaning power motor is installed in the cleaning component housing. The transmission rotating shaft is connected to the cleaning power motor, and the transmission rotating shaft is inserted into the sliding mounting table. The deflection link is connected to the transmission rotating shaft. The sliding mounting table is installed on the cleaning component housing. A pair of the connecting links are respectively connected to the deflection link through a rotating shaft. A pair of the transmission rack bars are respectively installed on the sliding mounting table through slide rails, and a pair of the transmission rack bars are respectively connected to a pair of the connecting links through a rotating shaft. A pair of the transmission gears are respectively meshed with a pair of the transmission rack bars. A pair of the reciprocating swing rotating shafts are respectively inserted into the cleaning component housing, and a pair of the reciprocating swing rotating shafts are respectively connected to a pair of the transmission gears. A pair of the reciprocating rotating turntables are respectively installed on a pair of the reciprocating swing rotating shafts. A pair of the fitting brushing layers are respectively installed on a pair of the reciprocating rotating turntables; It should be noted that in the above, the cleaning power motor in the cleaning component housing operates, so that the transmission rotating shaft and the deflection link are driven, and then a pair of connecting links pull a pair of transmission rack bars to slide back and forth on the sliding mounting table. And because the transmission gears are meshed with the transmission rack bars, a pair of the transmission gears will drive a pair of the reciprocating swing rotating shafts to rotate reciprocally, so that a pair of the reciprocating rotating turntables and a pair of the fitting brushing layers thereon rotate reciprocally. The reciprocally rotating fitting brushing layers always adhere to the surface of the dust collection grid, and through the bristles provided on the fitting brushing layers, the surface of the dust collection grid is fully brushed, and the dust on it is brushed off, so as to maintain its dust collection efficiency. The waterproof protective layer provided on the cleaning component housing can enable its internal components to operate safely in rainy or humid environments.
[0007] Preferably, a temperature sensor is provided in the device coating housing; Preferably, a winch is provided on the reel release hub; Preferably, a waterproof protective layer is provided on the cleaning component housing; Preferably, bristles are provided on the fitting brushing layer; Preferably, a maintenance hatch is provided on the outer casing of the device. Preferably, a sound alarm is provided on the outer casing of the device.
[0008] A dust-proof device for high-voltage power distribution in a thermal power plant manufactured by using the technical solution of the present invention, compared with the prior art: through the dust collection structure for the heat dissipation of the power distribution equipment, a gradient charge adsorption field is constructed by using the high-voltage ionization technology. When the dust-containing air flow passes through the dust collection grid, the dust particles are directionally polarized under the action of the electric field force and adsorbed on the surface of the dust collection grid. On the premise of ensuring the standard air duct flux of the core operating components of the thermal power plant, while maintaining the air-cooled heat dissipation efficiency of the core operating components of the thermal power plant under all working conditions, the risks of insulation deterioration and local overheating caused by dust accumulation are avoided. For the problem of saturation of the dust collection grid, the device adopts a suspended cleaning structure, so that the initial efficiency of the dust collection grid can be restored without manual intervention throughout the process, effectively avoiding secondary failures such as a sharp increase in wind resistance and heat dissipation attenuation caused by the blockage of the filter layer in the traditional filter screen type dust removal, and providing a three-in-one operation and maintenance guarantee solution of "active protection - intelligent cleaning - long-term heat dissipation" for the high-voltage power distribution system of the thermal power plant. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a main view sectional structure schematic diagram of a dust-proof device for high-voltage power distribution in a thermal power plant described in the present invention.
[0010] Figure 2 It is a top view structure schematic diagram of a dust-proof device for high-voltage power distribution in a thermal power plant described in the present invention.
[0011] Figure 3 It is a main view sectional structure schematic diagram of the cleaning component housing of a dust-proof device for high-voltage power distribution in a thermal power plant described in the present invention.
[0012] Figure 4 It is a top view sectional structure schematic diagram of the cleaning component housing of a dust-proof device for high-voltage power distribution in a thermal power plant described in the present invention.
[0013] Figure 5 It is Figure 1 a partial enlarged schematic diagram of "A" in
[0014] Figure 6 It is Figure 1 a partial enlarged schematic diagram of "B" in
[0015] Figure 7 It is Figure 2 a partial enlarged schematic diagram of "C" in
[0016] In the figure: 1. Device covering shell; 2. Thermal power core operating component; 3. Rewinding and releasing hub; 4. Air guiding housing; 5. Air guiding fan; 6. Dust-proof net on the shell; 7. Dust collection power grid; 8. Net body placement block; 9. Placement groove inside the block; 10. Reciprocating traction spring; 11. Driving displacement electromagnet; 12. Suspension cable; 13. Cable placement block; 14. Counterweight ball; 15. Cleaning component housing; 16. Cleaning power motor; 17. Transmission rotating shaft; 18. Deflection connecting rod; 19. Sliding placement table; 20. Connecting link; 21. Transmission rack; 22. Transmission gear; 23. Reciprocating swing rotating shaft; 24. Reciprocating rotating turntable; 25. Fitting brushing layer. Detailed implementation mode
[0017] Persons in this field shall connect all the electrical components in this case with their adapted power supplies through wires, and should select a suitable controller according to the actual situation to meet the control requirements. For the specific connection and control sequence, reference should be made to the sequence of the electrical components working successively in the following working principle to complete the electrical connection. The detailed connection means are well-known techniques in this field. The following mainly introduces the working principle and process, and no description of electrical control will be made.
[0018] Embodiment The present novelty will be specifically described below with reference to the attached drawings. As Figure 1-7As shown in the figure, a dust-proof device for high-voltage power distribution in a thermal power plant includes: a device covering shell 1, a thermal power core operating component 2, and a pair of winding and releasing hubs 3. The pair of winding and releasing hubs 3 are respectively installed on the device covering shell 1, and the thermal power core operating component 2 is installed inside the device covering shell 1. A power distribution equipment heat dissipation dust collection structure is installed inside the device covering shell 1. A pair of suspended cleaning structures are respectively installed on the pair of winding and releasing hubs 3. The power distribution equipment heat dissipation dust collection structure includes: a plurality of air guide shells 4, a plurality of air guide fans 5, a pair of dust-proof nets on the shell 6, a pair of dust collection power grids 7, and a plurality of net body placement blocks 8. The plurality of air guide shells 4 are respectively installed inside the device covering shell 1, the plurality of air guide fans 5 are respectively installed inside the plurality of air guide shells 4, the pair of dust-proof nets on the shell 6 are respectively installed on the device covering shell 1, the pair of dust collection power grids 7 are respectively connected to the plurality of net body placement blocks 8, the plurality of net body placement blocks 8 are respectively installed on the device covering shell 1, and the plurality of net body placement blocks 8 are respectively equipped with a plurality of power grid swing components. The power grid swing component includes: an inner block placement groove 9, a reciprocating traction spring 10, and a pair of driving displacement electromagnets 11. The inner block placement groove 9 is formed on the net body placement block 8, the reciprocating traction spring 10 is installed inside the inner block placement groove 9, and the reciprocating traction spring 10 is connected to the dust collection power grid 7. The pair of driving displacement electromagnets 11 are respectively inserted on the reciprocating traction spring 10. The suspended cleaning structure includes: a suspension cable 12, a cable placement block 13, a counterweight ball 14, and a cleaning component shell 15. The suspension cable 12 is connected to the winding and releasing hub 3, and the suspension cable 12 is connected to the cable placement block 13. The cable placement block 13 is installed on the cleaning component shell 15, the counterweight ball 14 is installed on the cleaning component shell 15, and a reciprocating driving cleaning component is arranged inside the cleaning component shell 15. The reciprocating driving cleaning component includes: a cleaning power motor 16, a transmission rotating shaft 17, a deflection connecting rod 18, a sliding placement table 19, a pair of connecting linkages 20, a pair of transmission rack bars 21, a pair of transmission gears 22, a pair of reciprocating swing rotating shafts 23, a pair of reciprocating rotating turntables 24, and a pair of fitting brushing layers 25;The cleaning power motor 16 is installed inside the cleaning component housing 15. The transmission rotating shaft 17 is connected to the cleaning power motor 16, and the transmission rotating shaft 17 is inserted on the sliding placement table 19. The deflection connecting rod 18 is connected to the transmission rotating shaft 17. The sliding placement table 19 is installed on the cleaning component housing 15. A pair of the connecting link rods 20 are respectively connected to the deflection connecting rod 18 through rotating shafts. A pair of the transmission rack bars 21 are respectively installed on the sliding placement table 19 through slide rails, and a pair of the transmission rack bars 21 are respectively connected to a pair of the connecting link rods 20 through rotating shafts. A pair of the transmission gears 22 are respectively meshed with a pair of the transmission rack bars 21. A pair of the reciprocating swing rotating shafts 23 are respectively inserted on the cleaning component housing 15, and a pair of the reciprocating swing rotating shafts 23 are respectively connected to a pair of the transmission gears 22. A pair of the reciprocating rotating turntables 24 are respectively installed on a pair of the reciprocating swing rotating shafts 23. A pair of the fitting scrubbing layers 25 are respectively installed on a pair of the reciprocating rotating turntables 24.;
[0019] According to the attached Figure 1-7It is concluded that when the core operating component 2 of thermal power operates within the device covering housing 1, heat is released, and multiple air guiding fans 5 within multiple air guiding housings 4 operate, causing air to enter the device covering housing 1 from the dust collection power grid 7 and the dust-proof net 6 on the housing on one side. After taking away the heat of the core operating component 2 of thermal power, it flows out from the dust collection power grid 7 and the dust-proof net 6 on the housing on the other side. At the same time, a certain amount of current is applied to the dust collection power grid 7, causing the dust flowing in the air to be adsorbed on the dust collection power grid 7. After accumulation, it is cleaned by the suspended cleaning structure on a pair of winding and releasing hubs 3, greatly reducing the dust accumulated on the core operating component 2 of thermal power within the device covering housing 1 and maintaining the stability of the cooling efficiency. The floating dust can be slightly cleaned by workers entering through the maintenance hatch provided on the device covering housing 1. The temperature sensor provided within the device covering housing 1 can monitor the temperature within the device covering housing 1. When the temperature is too high, it can alarm to the outside through the sound alarm provided on the device covering housing 1, prompting engineers or workers to intervene in a timely manner; when the four reciprocating traction springs 10 installed within the four mesh body mounting blocks 8 are fully connected to the dust collection power grid 7, power is supplied to the drive displacement electromagnets 11 within the reciprocating traction springs 10 within the block inner mounting grooves 9 on one side respectively, causing the corresponding pair of drive displacement electromagnets 11 within the reciprocating traction springs 10 to generate suction or repulsive forces, and then causing the reciprocating traction springs 10 to contract or extend within the mesh body mounting blocks 8, and further causing the dust collection power grid 7 on one side to slowly shake up and down under the coordinated push of a pair of mesh body mounting blocks 8, enabling the suspended cleaning structure to cooperate with the shaking dust collection power grid 7, fully cleaning the dust accumulated on the dust collection power grid 7 and reducing dust residue; through the winch provided on the winding and releasing hub 3, the suspension cable 12 can be wound and released, causing the cleaning component housing 15 with added weight by the counterweight ball 14 to slowly descend along the dust collection power grid 7 relying on the cable mounting block 13, and then be lifted and reset, repeating this cycle;The cleaning power motor 16 inside the cleaning component housing 15 operates, causing the transmission rotating shaft 17 and the deflection connecting rod 18 to be driven. As a result, a pair of connecting linkages 20 pull a pair of transmission racks 21 to slide back and forth on the sliding placement table 19. Since the transmission gears 22 mesh with the transmission racks 21, a pair of transmission gears 22 will drive a pair of reciprocating swing rotating shafts 23 to rotate reciprocally, causing a pair of reciprocating rotating turntables 24 and a pair of fitting scrubbing layers 25 thereon to rotate reciprocally. The reciprocally rotating fitting scrubbing layer 25 always adheres to the surface of the dust collection power grid 7, and through the bristles provided on the fitting scrubbing layer 25, the surface of the dust collection power grid 7 is fully scrubbed to brush off the dust thereon, thereby maintaining its dust collection efficiency. The waterproof protection layer provided on the cleaning component housing 15 enables its internal components to operate safely even in rainy or humid environments.
[0020] The above technical solution only reflects the preferred technical solution of the technical solution of the present invention. Some changes that those skilled in the art of this technology may make to some parts thereof all reflect the principle of the present invention and fall within the protection scope of the present invention.
Claims
1. A dust-proof device for high-voltage power distribution in a thermal power plant, comprising: The device includes a device housing, a thermal power core operating component, and a pair of winding and unwinding hubs. The pair of winding and unwinding hubs are respectively installed on the device housing, the thermal power core operating component is installed inside the device housing, and a power distribution equipment heat dissipation and dust collection structure is installed inside the device housing. A pair of suspended cleaning structures are respectively installed on the pair of winding and unwinding hubs. It is characterized in that the power distribution equipment heat dissipation and dust collection structure includes: a plurality of air guiding casings, a plurality of air guiding fans, a pair of dust-proof nets on the casing, a pair of dust collection electric grids, and a plurality of net body mounting blocks; The plurality of air guiding casings are respectively installed inside the device housing, the plurality of air guiding fans are respectively installed inside the plurality of air guiding casings, the pair of dust-proof nets on the casing are respectively installed on the device housing, the pair of dust collection electric grids are respectively connected to the plurality of net body mounting blocks, the plurality of net body mounting blocks are respectively installed on the device housing, and a plurality of electric grid swing components are respectively installed on the plurality of net body mounting blocks.
2. The dust-proof device for high-voltage power distribution in a thermal power plant according to claim 1, wherein, The electric grid swing component includes: an inner block mounting groove, a reciprocating traction spring, and a pair of driving displacement electromagnets; The inner block mounting groove is formed on the net body mounting block, the reciprocating traction spring is installed in the inner block mounting groove, and the reciprocating traction spring is connected to the dust collection electric grid. The pair of driving displacement electromagnets are respectively inserted on the reciprocating traction spring.
3. The dust-proof device for high-voltage power distribution in a thermal power plant according to claim 2, characterized in that, The suspended cleaning structure includes: a suspension cable, a cable mounting block, a counterweight ball, and a cleaning component housing; The suspension cable is connected to the winding and unwinding hub, and the suspension cable is connected to the cable mounting block. The cable mounting block is installed on the cleaning component housing, the counterweight ball is installed on the cleaning component housing, and a reciprocating driving cleaning component is arranged inside the cleaning component housing.
4. The dust-proof device for high-voltage power distribution in a thermal power plant according to claim 3, wherein, The reciprocating driving cleaning component includes: a cleaning power motor, a transmission rotating shaft, a deflection connecting rod, a sliding mounting table, a pair of connecting linkages, a pair of transmission rack bars, a pair of transmission gears, a pair of reciprocating swing rotating shafts, a pair of reciprocating rotating turntables, and a pair of fitting scrubbing layers; The cleaning power motor is installed inside the cleaning component housing, the transmission rotating shaft is connected to the cleaning power motor, and the transmission rotating shaft is inserted on the sliding mounting table. The deflection connecting rod is connected to the transmission rotating shaft. The sliding mounting table is installed on the cleaning component housing. The pair of connecting linkages are respectively connected to the deflection connecting rod through a rotating shaft. The pair of transmission rack bars are respectively installed on the sliding mounting table through a slide rail, and the pair of transmission rack bars are respectively connected to the pair of connecting linkages through a rotating shaft. The pair of transmission gears are respectively meshed with the pair of transmission rack bars. The pair of reciprocating swing rotating shafts are respectively inserted on the cleaning component housing, and the pair of reciprocating swing rotating shafts are respectively connected to the pair of transmission gears. The pair of reciprocating rotating turntables are respectively installed on the pair of reciprocating swing rotating shafts. The pair of fitting scrubbing layers are respectively installed on the pair of reciprocating rotating turntables.
5. The dust-proof device for high-voltage power distribution in a thermal power plant according to claim 4, wherein, A temperature sensor is provided inside the device's covering housing.
6. The dust-proof device for high-voltage power distribution in a thermal power plant according to claim 5, characterized in that, A winch is provided on the winding and unwinding hub.
7. The dust-proof device for high-voltage power distribution in a thermal power plant according to claim 6, characterized in that, A waterproof protective layer is provided on the housing of the cleaning component.
8. A dust-proof device for high-voltage power distribution in a thermal power plant according to claim 7, characterized in that, Brush bristles are provided on the fitting and brushing layer.
9. The dust-proof device for high-voltage power distribution in a thermal power plant according to claim 8, characterized in that, A maintenance hatch is provided on the device's covering housing.
10. A dust-proof device for high-voltage power distribution in a thermal power plant according to claim 9, characterized in that, An audible alarm is provided on the device's covering housing.