CN218570088U - Explosion-proof type high frequency high voltage dc power supply - Google Patents
Explosion-proof type high frequency high voltage dc power supply Download PDFInfo
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- CN218570088U CN218570088U CN202222953924.6U CN202222953924U CN218570088U CN 218570088 U CN218570088 U CN 218570088U CN 202222953924 U CN202222953924 U CN 202222953924U CN 218570088 U CN218570088 U CN 218570088U
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- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000004378 air conditioning Methods 0.000 claims 1
- 238000004880 explosion Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 40
- 230000001681 protective effect Effects 0.000 description 21
- 239000000428 dust Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The application relates to an explosion-proof high-frequency high-voltage direct-current power supply which comprises a cabinet body which is arranged in a sealing manner, wherein an inflation unit and an air pressure balancing unit are arranged on the cabinet body; the input end of the inflation unit is connected to an external protection gas source, and the output end of the inflation unit is communicated to the inside of the cabinet body; the air pressure balancing unit comprises a positive pressure controller, an air inlet electromagnetic valve and an air outlet electromagnetic valve, the positive pressure controller is installed in the cabinet body, the air outlet electromagnetic valve is installed on the cabinet body, and the air inlet electromagnetic valve is connected in series on an air inlet pipeline of the air charging unit. The high-frequency direct-current power supply device is added with an explosion-proof function.
Description
Technical Field
The application relates to the field of high-voltage power supplies, in particular to an explosion-proof high-frequency high-voltage direct-current power supply.
Background
The high-frequency high-voltage direct-current power supply is a new generation of power supply device applied to the fields of electric dust collectors, demisters, wet-type electric dust collectors and the like, can be widely applied to flue gas treatment in industries such as electric power, metallurgy, chemical industry, cement and the like, and can realize the effects of efficient dust removal and environment protection.
A high-frequency high-voltage direct-current power supply device comprises a cabinet body, wherein a plurality of ventilation and heat dissipation grooves are formed in the cabinet body in order to better realize a heat dissipation function; meanwhile, in order to facilitate related technicians to overhaul equipment, one surface of the cabinet body adjacent to the ground is hinged with a split door.
But when high frequency high voltage direct current power supply work in explosive environment such as combustible dust, combustible gas under, because there is the ventilation radiating groove on the cabinet body, when high frequency high voltage direct current power supply produced the spark under special circumstances, can lead to the surrounding environment to explode, cause the injury to property and life safety.
SUMMERY OF THE UTILITY MODEL
In order to realize increasing explosion-proof function for high frequency high voltage direct current power supply, this application provides an explosion-proof type high frequency high voltage direct current power supply.
The application provides an explosion-proof type high frequency high voltage direct current power supply adopts following technical scheme:
an explosion-proof high-frequency high-voltage direct-current power supply comprises a cabinet body which is arranged in a sealing mode, wherein an inflation unit and an air pressure balancing unit are arranged on the cabinet body; the input end of the inflation unit is connected to an external protection gas source, and the output end of the inflation unit is communicated to the inside of the cabinet body; the atmospheric pressure balancing unit includes malleation controller, air inlet solenoid valve and exhaust solenoid valve, the malleation controller is installed the cabinet is internal, exhaust solenoid valve installs on the cabinet body, air inlet solenoid valve establishes ties and is in the intake pipe way of inflating the unit.
Through adopting above-mentioned technical scheme, utilize the unit of aerifing to sealed cabinet internal input protective gas, make the pressure of the internal portion of cabinet be higher than the pressure of external environment to prevent that inflammable matters such as outside combustible gas from getting into the internal portion of cabinet. The air pressure balancing unit is used for controlling the air inlet electromagnetic valve and the air outlet electromagnetic valve according to the air pressure value in the cabinet body, so that the flow of the protective gas is controlled, the air pressure value of the cabinet body is stabilized in a proper range, and the high-frequency high-voltage direct-current power supply has an explosion-proof function.
Preferably, the air inflation unit comprises an air inlet valve, an air inlet of the air inlet valve is connected to an external protection air source, and an air outlet of the air inlet valve is connected to the inside of the cabinet body through an air inlet nozzle.
Through adopting above-mentioned technical scheme, utilize the unit of aerifing to realize the input of protective gas to cabinet internal portion to make cabinet internal portion be the malleation, and admission valve can control protective gas's packing and end.
Preferably, a filter element is arranged between the air inlet valve and the air inlet nozzle.
By adopting the technical scheme, the protective gas filled into the cabinet body is filtered by the filter element, so that the possibility that combustible particles, combustible gas and the like enter the cabinet body along with the protective gas is reduced.
Preferably, the filter element is provided with an air pressure gauge.
By adopting the technical scheme, the barometer is utilized to measure the air pressure value of the air inlet path, so that the protective gas can be normally filled into the cabinet body.
Preferably, the cabinet body comprises a cabinet door, a sealing ring is arranged on the periphery of the cabinet door, an exhaust valve is mounted on the cabinet body, and the exhaust valve is connected to the inside of the cabinet body through an exhaust nozzle.
By adopting the technical scheme, the cabinet door is arranged, when equipment needs to be overhauled, the exhaust valve is opened, so that protective gas is exhausted from the cabinet body, and the cabinet door is opened for overhauling; when the cabinet door is closed, the air tightness of the cabinet body is ensured by utilizing the sealing ring.
Preferably, the cabinet further comprises an explosion-proof air conditioner, wherein an air inlet is formed in the explosion-proof air conditioner, and the air inlet is communicated with the interior of the cabinet body.
Through adopting above-mentioned technical scheme, utilize explosion-proof air conditioner to make equipment can normally work because the heat that work effluvium is discharged from cabinet body inside. Meanwhile, gas inside the cabinet body can not exchange with gas outside the cabinet body, so that protective gas is filled in the cabinet body.
Preferably, a baffle plate is arranged on the outer side wall of the cabinet body corresponding to the upper part of the explosion-proof air conditioner; the baffle is far away from one side of the cabinet body side and faces the explosion-proof air conditioner.
By adopting the technical scheme, the baffle is utilized to provide rain and dust shielding protection for the explosion-proof air conditioner, so that the air conditioner can normally operate, and a high-frequency high-voltage direct-current power supply is protected.
Preferably, the cabinet further comprises an explosion-proof indicator light, and the explosion-proof indicator light is installed on the outer side of the cabinet body.
Through adopting above-mentioned technical scheme, whether the atmospheric pressure value that the explosion-proof pilot lamp was put through to the bright indication cabinet of utilizing is in suitable atmospheric pressure scope, and when the atmospheric pressure value of the internal portion of cabinet was in unusual, explosion-proof pilot lamp can give alarm signal.
In summary, the present application includes at least one of the following beneficial technical effects: protective gas is filled into the cabinet body by the inflation unit, so that the interior of the cabinet body is in positive pressure. The positive pressure controller is used for adjusting the air inlet electromagnetic valve and the air outlet electromagnetic valve, so that the air pressure value in the cabinet body is adjusted. The exhaust valve is used for exhausting protective gas, so that the air pressure value in the cabinet body is reduced, and the cabinet door is opened to facilitate maintenance. When the air pressure value in the cabinet body exceeds a proper range, an explosion-proof indicator lamp is used for giving an alarm. The explosion-proof air conditioner is used for reducing the temperature in the cabinet body so as to ensure the normal work of equipment. The embodiment of the application utilizes the structure to realize the explosion-proof function added to the high-frequency high-voltage direct-current power supply.
Drawings
FIG. 1 is a schematic structural diagram of a cabinet door closed according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of the embodiment of the present application, after a hidden cabinet door is displayed, mainly used for displaying an explosion-proof controller, an air conditioner, a baffle plate and part of the interior of a cabinet body;
FIG. 3 is a schematic structural view of the embodiment of the present application, after the hidden cabinet door is displayed, mainly used for displaying the explosion-proof indicator light, the inflation and a part of the interior of the cabinet body;
fig. 4 is a schematic structural diagram mainly used for showing the charging and intake solenoid valves in the embodiment of the present application.
Reference numerals are as follows: 1. a cabinet body; 101. hoisting a ring; 102. a pulley; 103. a heat dissipating fin; 2. a cabinet door; 3. a baffle plate; 4. a seal ring; 5. an inflation unit; 501. an interface; 502. an intake valve; 503. a filter element; 504. a barometer; 505. an air inlet nozzle; 6. an exhaust valve; 601. an exhaust nozzle; 701. a positive pressure controller; 702. an air inlet solenoid valve; 703. an exhaust solenoid valve; 8. an explosion-proof indicator light; 9. an explosion-proof air conditioner; 901. a fan; 902. and an air inlet.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses an explosion-proof type high frequency high voltage direct current power supply.
Referring to fig. 1, 2 and 3, an explosion-proof high-frequency high-voltage direct-current power supply comprises a cabinet body 1, wherein an explosion-proof function is realized by inputting a proper amount of protective gas into the cabinet body 1, so that the pressure in the cabinet body 1 is higher than the external environment pressure, a micro-positive pressure safety environment is formed, inflammable substances such as combustible gas and the like are prevented from entering a positive pressure cavity in the cabinet body 1, and the safe operation of the high-frequency high-voltage direct-current power supply is ensured.
The cabinet body 1 is wholly cuboid, a hoisting ring 101 is installed at the top end of the cabinet body 1, hoisting is facilitated, and a plurality of pulleys 102 are installed at the bottom of the cabinet body 1, so that the cabinet body 1 can be moved conveniently. The two side surfaces of the cabinet body 1 are provided with the heat radiating fins 103, which are helpful for heat radiation of the cabinet body 1. One of the rest side surfaces of the cabinet body 1 is hinged with a cabinet door 2. In order to ensure the tightness of the cabinet body 1, the cabinet door 2 is provided with a rubber sealing ring 4 along the periphery thereof, and when the cabinet door 2 is closed, the air tightness inside the cabinet body 1 is ensured. In order to further improve the gas tightness of the cabinet body 1, a plurality of fastening screws are installed around the cabinet door 2, and the position of the cabinet body 1 corresponding to the plurality of fastening screws is provided with a fixing hole. After the cabinet door 2 is closed, the cabinet door 2 can be more tightly fixed on the cabinet body 1 by screwing the fastening screw in the fixing hole. In this embodiment, the fastening screw is a triangular screw, and the triangular screw has a low screwing torque and high locking performance, so that the fastening screw is screwed, and the fastening performance of the cabinet door 2 and the cabinet body 1 is improved.
In order to stabilize the air pressure condition in the cabinet at positive pressure, an inflating unit 5 and an air pressure balancing unit are installed on the cabinet body 1. The inflation unit 5 is used for filling protective gas into the cabinet body 1. The air pressure balancing unit is used for controlling the filling and discharging of protective gas according to the air pressure value in the cabinet body 1, so that the inside of the cabinet body 1 is kept at positive pressure in a proper range. Still be equipped with discharge valve 6 on the cabinet body 1, discharge valve 6 is used for when the staff need overhaul equipment, makes the inside protective gas of the cabinet body 1 can discharge to open cabinet door 2 and overhaul.
With reference to fig. 2, 3 and 4, the air-charging unit 5 comprises an air inlet valve 502, the air inlet valve 502 being mounted on the outer side of the cabinet 1 adjacent to the cabinet door 2. The air inlet of admission valve 502 is kept away from 2 directions of cabinet door and is connected with interface 501, and interface 501 is connected to outside protection air supply, and the protection gas is clean compressed air in this embodiment. An air outlet of the air inlet valve 502 is connected with an air inlet nozzle 505 in the direction close to the cabinet door 2, and the air inlet nozzle 505 is positioned at the inner side of the cabinet body 1. Protective gas is input into the cabinet body 1 from an external protective gas source, so that the interior of the cabinet is in positive pressure, and the gas inlet valve 502 is used for controlling the filling and stopping of the protective gas. A filter element 503 is connected between the air inlet valve 502 and the air inlet nozzle 505. The filter element 503 is used for filtering the shielding gas, and reducing the possibility that combustible particles, combustible gas and the like enter the cabinet 1 along with the shielding gas. The filter element 503 is further provided with a barometer 504 for measuring the air pressure value of the air passage of the inflation unit 5, so as to ensure that the protective gas can be normally inflated into the cabinet body 1.
Referring to fig. 2 and 3, the exhaust valve 6 is installed on a side surface of the cabinet 1 opposite to the intake valve 502, and the exhaust valve 6 is connected to an exhaust nozzle 601 for exhausting the shielding gas in the cabinet 1 through a duct to the inside of the cabinet 1. When the exhaust valve 6 is manually opened, the air is rapidly exhausted from the exhaust nozzle 601, and the air pressure inside and outside the cabinet body 1 is balanced. When the maintainer need overhaul equipment, the exhaust valve 6 is opened to the closing equipment power, thereby dismantles fastening screw and opens cabinet door 2 and overhaul work again.
The positive pressure control unit comprises a positive pressure controller 701, and the positive pressure controller 701 is installed on the same face of the cabinet body 1 with the exhaust valve 6 and is installed on one side, close to the cabinet door 2, of the exhaust valve 6. The positive pressure control unit also includes an intake solenoid valve 702 and an exhaust solenoid valve 703. The air inlet solenoid valve 702 is installed between the filter element 503 and the air inlet nozzle 505, and the air outlet solenoid valve 703 is installed on the cabinet 1. The positive pressure controller 701 is configured to adjust the air inlet solenoid valve 702 or the air outlet solenoid valve 703 according to the measured air pressure value, so as to control the flow rate of the shielding gas, and further stabilize the air pressure inside the cabinet 1. Meanwhile, the positive pressure control unit can set the range of the air pressure value when the equipment works normally.
Still be equipped with explosion-proof pilot lamp 8 on the cabinet body 1, and explosion-proof pilot lamp 8 installs and is equipped with the gas filled coplanar at the cabinet body 1, and installs and aerify and be close to hoist and mount ring 101 one side. Whether the air pressure value in the cabinet body 1 is in the set air pressure value range is indicated through the on-off of the explosion-proof indicator lamp 8, so that the feedback of a normal signal and an alarm signal is given.
The cabinet body 1 is also provided with an explosion-proof air conditioner 9, and the explosion-proof air conditioner 9 is installed outside the cabinet body 1 and is installed on one side, close to the ground of the cabinet body 1, of the positive pressure controller 701. The explosion-proof air conditioner 9 extracts the hot air inside from the fan 901, and meanwhile, the air inlet 902 of the explosion-proof air conditioner 9 is located inside the cabinet body 1 and communicated with the inside of the cabinet body. When the equipment begins to work, the explosion-proof air conditioner 9 is always in a starting state, and the purpose is to ensure that the gas inside the cabinet body 1 can not exchange with the gas outside the cabinet body 1, so that the protection gas is filled in the cabinet body 1. Meanwhile, the explosion-proof air conditioner 9 is used for discharging a large amount of heat dissipated by the equipment due to work, so that the equipment can work normally.
A baffle 3 is arranged on the cabinet body 1 between the positive pressure controller 701 and the air conditioner, the baffle 3 is integrally rectangular plate-shaped, and two short side edges of the baffle 3 extend to form a cover plate close to the ground; one of the length direction side edges is fixed at the outer side of the cabinet body 1; and the other length direction inclines to the ground, so that the protection of rain and dust prevention is provided for the explosion-proof air conditioner 9, the air conditioner can normally operate, and the high-frequency high-voltage direct-current power supply is protected.
The implementation principle of an explosion-proof type high frequency high voltage direct current power supply of the embodiment of the application is as follows: the cabinet body 1 is in a sealed environment through a plurality of fastening screws and rubber sealing rings 4, and protective gas is filled into the cabinet body 1 through the inflating unit 5, so that the interior of the cabinet body 1 is in positive pressure. The exhaust valve 6 is used for exhausting protective gas to reduce the pressure value inside the cabinet 1. The positive pressure controller 701 is used for controlling the air pressure value inside the cabinet body 1, and the air pressure value inside the cabinet body 1 is adjusted by adjusting the air inlet electromagnetic valve 702 and the air outlet electromagnetic valve 703; meanwhile, the range of the air pressure value of the cabinet body 1 in the normal working state can be set. When the air pressure value inside the cabinet body 1 is detected to exceed the air pressure value range, the explosion-proof indicator lamp 8 is used for giving an alarm to prompt relevant workers to perform corresponding adjustment. The explosion-proof air conditioner 9 is utilized to cool and radiate the devices in the cabinet body 1, thereby ensuring the normal work of the equipment. The embodiment of the application utilizes the structure to realize that the high-frequency high-voltage direct-current power supply can normally work, and meanwhile, the high-frequency high-voltage direct-current power supply is added with an explosion-proof function, so that the high-frequency high-voltage direct-current power supply can work in an explosive environment.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An explosion-proof type high frequency high voltage DC power supply which characterized in that: the air-conditioning cabinet comprises a cabinet body (1) which is arranged in a sealing way, wherein an inflating unit (5) and an air pressure balancing unit are arranged on the cabinet body (1); the input end of the inflation unit (5) is connected to an external protection air source, and the output end of the inflation unit (5) is communicated to the inside of the cabinet body (1); the air pressure balancing unit comprises a positive pressure controller (701), an air inlet electromagnetic valve (702) and an air outlet electromagnetic valve (703), the positive pressure controller (701) is installed in the cabinet body (1), the air outlet electromagnetic valve (703) is installed on the cabinet body (1), and the air inlet electromagnetic valve (702) is connected in series on an air inlet pipeline of the air charging unit (5).
2. An explosion-proof high frequency high voltage direct current power supply according to claim 1, characterized in that: the air charging unit (5) comprises an air inlet valve (502), an air inlet of the air inlet valve (502) is connected to an external protection air source, and an air outlet of the air inlet valve (502) is connected to the inside of the cabinet body (1) through an air inlet nozzle (505).
3. An explosion-proof high frequency high voltage dc power supply according to claim 2, characterized in that: and a filter element (503) is arranged between the air inlet valve (502) and the air inlet nozzle (505).
4. An explosion-proof high frequency high voltage direct current power supply according to claim 3, characterized in that: and an air pressure meter (504) is arranged on the filter element (503).
5. An explosion-proof high frequency high voltage direct current power supply according to claim 1, characterized in that: the cabinet body (1) includes cabinet door (2), cabinet door (2) are provided with sealing washer (4) along its periphery, install discharge valve (6) on the cabinet body (1), discharge valve (6) are connected to through exhaust nozzle (601) in the cabinet body (1).
6. An explosion-proof type high frequency high voltage direct current power supply of claim 1, characterized in that: still include explosion-proof air conditioner (9), be provided with air intake (902) on explosion-proof air conditioner (9), air intake (902) with cabinet body (1) inside intercommunication.
7. An explosion-proof high frequency high voltage direct current power supply according to claim 6, characterized in that: a baffle (3) is arranged on the outer side wall of the cabinet body (1) corresponding to the upper part of the explosion-proof air conditioner (9); the baffle (3) is far away from one side of the cabinet body (1) and faces the anti-explosion air conditioner (9) in an inclined mode.
8. An explosion-proof high frequency high voltage direct current power supply according to claim 1, characterized in that: still include explosion-proof pilot lamp (8), explosion-proof pilot lamp (8) are installed the cabinet body (1) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222953924.6U CN218570088U (en) | 2022-11-07 | 2022-11-07 | Explosion-proof type high frequency high voltage dc power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222953924.6U CN218570088U (en) | 2022-11-07 | 2022-11-07 | Explosion-proof type high frequency high voltage dc power supply |
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| CN218570088U true CN218570088U (en) | 2023-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222953924.6U Active CN218570088U (en) | 2022-11-07 | 2022-11-07 | Explosion-proof type high frequency high voltage dc power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116456699A (en) * | 2023-05-24 | 2023-07-18 | 四川宏华电气有限责任公司 | Cooling explosion-proof device suitable for frequency converter in explosion-proof area of well drilling and control method thereof |
-
2022
- 2022-11-07 CN CN202222953924.6U patent/CN218570088U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116456699A (en) * | 2023-05-24 | 2023-07-18 | 四川宏华电气有限责任公司 | Cooling explosion-proof device suitable for frequency converter in explosion-proof area of well drilling and control method thereof |
| CN116456699B (en) * | 2023-05-24 | 2024-05-28 | 四川宏华电气有限责任公司 | Cooling explosion-proof device suitable for frequency converter in explosion-proof area of well drilling and control method thereof |
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