CN116456699A - Cooling explosion-proof device suitable for frequency converter in explosion-proof area of well drilling and control method thereof - Google Patents
Cooling explosion-proof device suitable for frequency converter in explosion-proof area of well drilling and control method thereof Download PDFInfo
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- CN116456699A CN116456699A CN202310594565.6A CN202310594565A CN116456699A CN 116456699 A CN116456699 A CN 116456699A CN 202310594565 A CN202310594565 A CN 202310594565A CN 116456699 A CN116456699 A CN 116456699A
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- 238000001816 cooling Methods 0.000 title claims abstract description 25
- 238000005553 drilling Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 10
- 229920000271 Kevlar® Polymers 0.000 claims description 4
- 239000004761 kevlar Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000004880 explosion Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0004—Casings, cabinets or drawers for electric apparatus comprising several parts forming a closed casing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20945—Thermal management, e.g. inverter temperature control
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a cooling explosion-proof device suitable for a frequency converter in a drilling explosion-proof area and a control method thereof, wherein the device comprises the following components: the device comprises an outer frame, a protective net and an inner box body, wherein the inner box body is arranged in the outer frame, the inner box body is a closed space, exhaust valves are arranged at the top and the side wall of the inner box body, and a temperature sensor and an air pressure detector are arranged in the inner box body; the top of the inner box body is provided with a vortex cooler, the vortex cooler is connected with a plurality of air ducts, and the air ducts extend to the bottom of the inner box body and are connected with porous pipe joints. The invention adopts the vortex cooling technology to inject the cold air into the inner box body, thereby ensuring that the air pressure in the inner box body is always positive pressure, the frequency converter can be cooled by cold air, and compared with an air conditioner, the energy consumption required by the air compressor is lower; the outer frame and the protective net can reduce the explosion impact effect, reduce the impact energy acted on the inner box body, and improve the safety coefficient of the protective frequency converter.
Description
Technical Field
The invention relates to the technical field of frequency converter cooling explosion prevention, in particular to a cooling explosion prevention device suitable for a frequency converter in a drilling explosion prevention area and a control method thereof.
Background
The frequency converter is a power control device which controls the alternating current motor by changing the frequency of a working power supply of the motor by applying a frequency conversion technology and a microelectronic technology. The frequency converter mainly comprises rectification (alternating current-to-direct current), filtering, inversion (direct current-to-alternating current), a braking unit, a driving unit, a detecting unit and a micro-processing unit, and the voltage and frequency of an output power supply are regulated by means of the on-off of an internal IGBT, and the required power supply voltage is provided according to the actual requirement of a motor, so that the purposes of energy conservation and speed regulation are achieved. The frequency converter needs to be provided with an explosion-proof area, so that the safety of equipment is ensured, and explosion-proof measures of the frequency converter mainly comprise an explosion-proof type and a positive pressure type. The explosion-proof type frequency converter is arranged in the explosion-proof box to meet the explosion-proof requirement, and the frequency converter generates a large amount of heat during operation and needs to dissipate heat, so that the volume of the explosion-proof box is large, the heat dissipation efficiency is guaranteed, the explosion-proof box needs to be guaranteed to be free from the explosion impact effect, the strength and the thickness of the explosion-proof box are required to be guaranteed, the occupied area and the manufacturing cost are high, and the frequency converter has the advantages that cooling equipment is not required to be additionally arranged; the positive pressure type explosion-proof is characterized in that an air conditioner is additionally arranged on a small explosion-proof box, the air conditioner is used for cooling, meanwhile, the air pressure in the small explosion-proof box is larger than the air pressure of the outside, when explosion impact acts, the impact can be counteracted due to the high air pressure in the box, and then a frequency converter is protected.
The prior art discloses a control method (publication number: CN 114007382A) of an explosion-proof positive pressure cabinet, in the patent, cold air is injected into the explosion-proof positive pressure cabinet by utilizing an air conditioner to dissipate heat, the air pressure in the explosion-proof positive pressure cabinet is higher than the external air pressure, and when accidents such as explosion and the like occur around, the generated impact can be counteracted by the high air pressure in the explosion-proof positive pressure cabinet, so that a frequency converter is protected; however, in the patent, the air conditioner is used for cooling, so that not only is the energy consumption high, but also the explosion-proof measure only depends on the air pressure in the positive pressure cabinet, so that the risk of explosion impact on the frequency converter exists, and the safety of the frequency converter cannot be completely guaranteed.
Disclosure of Invention
The invention provides a cooling explosion-proof device suitable for a frequency converter in a drilling explosion-proof area and a control method thereof, and overcomes the defects of the explosion-proof mode.
A cooling explosion-proof device suitable for a frequency converter in an explosion-proof area of a well, comprising: the frequency converter comprises an outer frame, a protective net arranged on the outer frame and an inner box body used for installing the frequency converter, wherein the inner box body is arranged in the outer frame;
the inner box body is a closed space, exhaust valves for exhausting air are arranged on the top and the upper side of the side wall of the inner box body, temperature sensors are arranged on the side wall and the bottom of the inner box body, and an air pressure detector is arranged near the frequency converter;
the top of the inner box body is provided with a vortex cooler, the vortex cooler is connected with a plurality of air ducts, and the air ducts extend to the bottom of the inner box body and are connected with porous pipe joints.
Further, the vortex cooler is connected with an air compressor through an air pipe, and a filter and an electromagnetic valve are arranged on the air pipe.
Further, the electromagnetic valve is connected to a power transmission line, the power transmission line is also connected with a temperature control switch, a broadcasting device and a controller, the temperature control switch is arranged on the side wall of the inner box body, and the controller is respectively in communication connection with the electromagnetic valve, the temperature control switch and the broadcasting device.
Further, the power transmission line, the gas transmission pipe and the electromagnetic valve are all arranged in the explosion-proof pipeline.
Further, the outer frame comprises a bottom beam, a vertical beam and a top plate, wherein one end of the vertical beam is connected to the bottom beam, and the other end of the vertical beam is connected with the top plate.
Further, a plurality of air leakage holes and hanging rings are formed in the top plate, and a reinforcing beam is arranged between two adjacent vertical beams.
Further, the air compressor is an explosion-proof air compressor.
Further, the protective net is made of Kevlar material.
The control method of the cooling explosion-proof device suitable for the frequency converter in the explosion-proof area of the drilling well based on the technical scheme comprises the following steps:
s1: starting a frequency converter, and measuring the temperature and the air pressure in the inner box body through a temperature sensor and an air pressure detector;
s2: broadcasting the temperature value and the air pressure value in the inner box body through a broadcasting device;
s3: the temperature in the inner box body is set to be 28-30 ℃ through a temperature control switch, when the temperature in the inner box body exceeds 30 ℃, the temperature sensor transmits temperature information to the controller, the controller controls the electromagnetic valve to be opened, so that compressed air enters the vortex cooler, cold air enters the inner box body through the air duct and the porous pipe joint, and hot air in the inner box body is discharged from the exhaust valve;
s4: the air pressure detector measures the air pressure value in the inner box body, when the air pressure value is higher than a set highest early warning value, the information is transmitted to the controller, the controller controls the electromagnetic valve to be closed, when the air pressure value is lower than a set lowest early warning value, the information is transmitted to the controller, the controller controls the electromagnetic valve to be opened, and cold air is injected into the inner box body in an accelerating mode.
The invention has the following beneficial effects:
(1) According to the invention, the vortex cooling technology is adopted, the compressed air is separated from the cold air through the vortex cooler by the air compressor, and the cold air is injected into the inner box body, so that the air pressure in the inner box body is always positive pressure, the frequency converter can be cooled by the cold air, the explosion-proof and cooling effects of the frequency converter are simultaneously satisfied, and compared with an air conditioner, the energy consumption required by the air compressor is lower.
(2) According to the invention, the outer frame is arranged on the outer side of the inner box body, and the protective net is arranged on the outer frame, so that when explosion impact occurs, the protective net acts on the protective net first, the impact effect can be reduced, the impact energy acting on the inner box body is reduced, and the safety coefficient of protecting the frequency converter is improved; meanwhile, due to the arrangement of the protective net and the outer frame, the volume of the inner box body can be reduced, and then the occupied space and the manufacturing cost of the inner box body are reduced.
(3) The invention has few core components, is easy to maintain and replace, and can ensure that the frequency converter runs safely and reliably in an explosion-proof area.
Drawings
FIG. 1 is a schematic view of the positions of an outer frame and an inner case in the present invention;
FIG. 2 is a schematic cross-sectional view of the inner case of the present invention;
fig. 3 is a schematic structural view of an outer frame according to the present invention.
In the figure: 1-an outer frame; 101-a bottom beam; 102-vertical beams; 103-top plate; 104-hanging rings; 105-reinforcing beams; 106-an air release hole; 2-an inner box body; 201—a temperature sensor; 202-an air pressure detector; 203-exhaust valve; 204-power lines; 205-temperature control switch; 3-frequency converter; 4-vortex coolers; 401-an airway tube; 402-porous pipe joint; 403-gas delivery pipe; 404-a filter; 405-solenoid valve.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Referring to fig. 1 to 3, the present invention provides a cooling explosion-proof apparatus suitable for a frequency converter of an explosion-proof area of a well, comprising: the device comprises an outer frame 1, a protective net arranged on the outer frame 1 and an inner box body 2, wherein the inner box body 2 is arranged inside the outer frame 1;
the inner box body 2 is a closed space, the whole body is in a cabinet shape, the frequency converter 3 is arranged in the inner box body, the function of protecting the frequency converter 3 is achieved, the inner box body 2 can be made of steel plates through welding, and certain strength can be ensured to resist explosion impact energy; the top and the side wall of the inner box body 2 are respectively provided with an exhaust valve 203 at the upper part, and the exhaust valves 203 are communicated with the inside and the outside of the inner box body 2 and are used for exhausting the hot air in the inner box body 2.
The top of the inner box body 2 is provided with a vortex cooler 4, the vortex cooler 4 is connected with a plurality of air ducts 401, the air ducts 401 extend to the bottom of the inner box body 2 and are connected with a porous pipe joint 402, and the air ducts 401 are connected with the inner box body 2 in a sealing way through sealing rings.
The porous pipe joint 402 is cylindrical, the inside is hollow, a plurality of small holes are distributed on the hole wall, when compressed cold air enters the inside of the porous pipe joint 402, the compressed cold air can be sprayed out of the small holes uniformly, so that the middle lower part of the inner box body 2 is filled with the cold air, the equal volume of hot air is extruded and discharged out of the inner box body 2, the phenomenon that a large amount of hot air contacts with the cold air to generate condensed water is avoided, and the air pressure in the inner box body 2 is always positive pressure.
The vortex cooler 4 is connected with an air compressor, preferably an explosion-proof air compressor, through an air compressor, compressed air is supplied to the vortex cooler 4 through the air compressor, the vortex cooler 4 generates cold air and hot air through energy conversion, the cold air is delivered into the inner box 2 through the air duct 401 and the porous pipe joint 402, and the hot air inside is extruded, and the hot air is discharged from the exhaust valve 203 at the top of the inner box 2 and the upper part in the side wall due to the small density of the hot air.
The air pipe 403 is provided with a filter 404 and a solenoid valve 405, the solenoid valve 405 is connected to the power transmission line 204, and the circulation of compressed air in the air pipe 403 is controlled by the solenoid valve 405; a filter 404 is arranged in front of the electromagnetic valve 405, dust, water vapor and other small liquid drops in the compressed air can be absorbed and filtered through the filter 404, and the normal operation of the frequency converter 3 in the inner box body 2 is ensured, and the influence of the dust, the water vapor and the like is avoided.
The power transmission line 204 is connected with many branch lines, and the branch line is connected with temperature detect switch 205, report ware and controller, and temperature detect switch 205 sets up on the lateral wall of box 2 including, and report ware and controller are fixed on the outer wall of box 2 including, and the controller is connected with solenoid valve 405, temperature detect switch 205 and report ware communication respectively.
The power line 204, the gas pipe 403 and the electromagnetic valve 405 are uniformly arranged in the explosion-proof pipeline, and when explosion impact occurs, the explosion-proof pipeline can effectively protect the power line 204, the gas pipe 403 and the electromagnetic valve 405 from being damaged.
The side wall and the bottom of the inner box body 2 are provided with temperature sensors 201, the temperature sensors 201 of the side wall are used for detecting the temperature of the middle position of the inner box body 2, and the temperature sensors of the bottom are used for detecting the temperature of cold air sprayed out of a porous pipe joint 402 at the bottom of the inner box body 2, so that the temperature change of different height positions in the inner box body 2 can be controlled in real time; the air pressure detector 202 is arranged near the frequency converter 3, the air pressure change around the frequency converter 3 can be detected through the air pressure detector 202, and accurate numerical values can be played through the broadcaster, so that the staff can record conveniently.
The outer frame 1 comprises four bottom beams 101, four vertical beams 102 and a top plate 103, wherein the four bottom beams 101 and the four vertical beams 102 are connected into a rectangular structure, one ends of the four vertical beams 102 are vertically connected at four corners of the rectangular structure, and the other ends of the four vertical beams are connected to the top plate 103, so that a frame structure of the cabinet body is integrally formed; a stiffening beam 105 is arranged between two adjacent vertical beams 102 for stiffening the whole outer frame 1 and enhancing the stability and impact resistance of the outer frame 1.
The four sides of the outer frame 1 are respectively hung with a plurality of layers of protective layers, the protective net is made of Kevlar materials to form a multi-layer interlaced dense net, the Kevlar materials are high in strength, good in toughness and resistant to high temperature of 180 ℃, explosion can be effectively prevented, impact energy acting on the inner box body 2 is reduced, and meanwhile heat dissipation of the frequency converter 3 is not affected.
The top plate 103 of the outer frame 1 is provided with a plurality of air leakage holes 106 and hanging rings 104, the air leakage holes 106 facilitate the overflow of hot air exhausted from the inner box body 2, the hanging rings 104 facilitate the lifting and the moving of the outer frame 1 and various parts inside, and the outer frame is not required to be independently disassembled and then moved, so that the working efficiency is high.
The control method of the cooling explosion-proof device suitable for the frequency converter in the explosion-proof area of the drilling well based on the technical scheme comprises the following steps:
s1: starting the frequency converter 3, and measuring the temperature and the air pressure in the inner box body 2 through the temperature sensor 201 and the air pressure detector 202;
s2: broadcasting the temperature value and the air pressure value in the inner box body 2 through a broadcasting device;
s3: the temperature in the inner box body 2 is set to be 28-30 ℃ through the temperature control switch 205, when the temperature in the inner box body 2 exceeds 30 ℃, the temperature sensor 201 transmits temperature information to the controller, the controller controls the electromagnetic valve 405 to be opened, so that compressed air enters the vortex cooler 4, cold air enters the inner box body 2 through the air duct 401 and the porous pipe joint 402, and hot air in the inner box body 2 is discharged from the exhaust valve 203;
s4: the air pressure detector 202 measures the air pressure value in the inner box 2, when the air pressure value is higher than the set highest early warning value, the information is transmitted to the controller, the controller controls the electromagnetic valve 405 to be closed, when the air pressure value is lower than the set lowest early warning value, the information is transmitted to the controller, the controller controls the electromagnetic valve 405 to be opened, and the injection of cold air into the inner box 2 is accelerated.
The foregoing is merely a preferred embodiment of the invention, which is not representative of all possible forms of the invention, and the scope of the invention is not limited to such specific statements and embodiments. Various other modifications and improvements can be made in light of the teachings of the present disclosure without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a cooling explosion-proof equipment suitable for well drilling explosion-proof area converter which characterized in that includes: the device comprises an outer frame (1), a protective net arranged on the outer frame (1) and an inner box body (2) for mounting a frequency converter (3), wherein the inner box body (2) is arranged in the outer frame (1);
the inner box body (2) is a closed space, exhaust valves (203) for exhausting air are arranged on the top and the upper parts of the side walls of the inner box body, temperature sensors (201) are arranged on the side walls and the bottom of the inner box body (2), and an air pressure detector (202) is arranged near the frequency converter (3);
the top of interior box (2) is equipped with vortex cooler (4), vortex cooler (4) are connected with many air ducts (401), air duct (401) extend to the bottom of interior box (2) and are connected with porous pipe joint (402).
2. The cooling explosion-proof device for a frequency converter in an explosion-proof area of a well according to claim 1, wherein: the vortex cooler (4) is connected with an air compressor through an air pipe (403), and a filter (404) and an electromagnetic valve (405) are arranged on the air pipe (403).
3. The cooling explosion-proof device suitable for a frequency converter in an explosion-proof area of a well drilling according to claim 2, wherein: the electromagnetic valve (405) is connected to the power transmission line (204), the power transmission line (204) is also connected with the temperature control switch (205), the broadcasting device and the controller, the temperature control switch (205) is arranged on the side wall of the inner box body (2), and the controller is respectively in communication connection with the electromagnetic valve (405), the temperature control switch (205) and the broadcasting device.
4. A cooling explosion-proof apparatus for a frequency converter for a well explosion-proof area according to claim 3, wherein: the power transmission line (204), the gas transmission pipe (403) and the electromagnetic valve (405) are all arranged in the explosion-proof pipeline.
5. A cooling explosion-proof apparatus for a frequency converter adapted for use in a drilling explosion-proof area according to any one of claims 1 to 4, wherein: the outer frame (1) comprises a bottom beam (101), a vertical beam (102) and a top plate (103), wherein one end of the vertical beam (102) is connected to the bottom beam (101), and the other end of the vertical beam is connected to the top plate (103).
6. The cooling explosion-proof apparatus for a frequency converter in an explosion-proof area of a well according to claim 5, wherein: a plurality of air leakage holes (106) and hanging rings (104) are formed in the top plate (103), and a reinforcing beam (105) is arranged between two adjacent vertical beams (102).
7. The cooling explosion-proof device suitable for a frequency converter in an explosion-proof area of a well drilling according to claim 2, wherein: the air compressor is an explosion-proof air compressor.
8. The cooling explosion-proof device for a frequency converter in an explosion-proof area of a well according to claim 1, wherein: the protective net is made of Kevlar material.
9. A control method of a cooling explosion-proof device suitable for a frequency converter in an explosion-proof area of a well drilling based on the method of claim 4, comprising the following steps:
s1: starting the frequency converter (3), and measuring the temperature and the air pressure in the inner box body (2) through the temperature sensor (201) and the air pressure detector (202);
s2: broadcasting the temperature value and the air pressure value in the inner box body (2) through the broadcasting device;
s3: the temperature in the inner box body (2) is set to be 28-30 ℃ through the temperature control switch (205), when the temperature in the inner box body (2) exceeds 30 ℃, the temperature sensor (201) transmits temperature information to the controller, the controller controls the electromagnetic valve (405) to be opened, compressed air enters the vortex cooler (4), cold air enters the inner box body (2) through the air duct (401) and the porous pipe joint (402), and hot air in the inner box body (2) is discharged from the exhaust valve (203);
s4: the air pressure detector (202) measures the air pressure value in the inner box body (2), when the air pressure value is higher than a set highest early warning value, information is transmitted to the controller, the controller controls the electromagnetic valve (405) to be closed, when the air pressure value is lower than a set lowest early warning value, the information is transmitted to the controller, the controller controls the electromagnetic valve (405) to be opened, and cold air is injected into the inner box body (2) in an accelerating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310594565.6A CN116456699B (en) | 2023-05-24 | 2023-05-24 | Cooling explosion-proof device suitable for frequency converter in explosion-proof area of well drilling and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310594565.6A CN116456699B (en) | 2023-05-24 | 2023-05-24 | Cooling explosion-proof device suitable for frequency converter in explosion-proof area of well drilling and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116456699A true CN116456699A (en) | 2023-07-18 |
| CN116456699B CN116456699B (en) | 2024-05-28 |
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| CN202310594565.6A Active CN116456699B (en) | 2023-05-24 | 2023-05-24 | Cooling explosion-proof device suitable for frequency converter in explosion-proof area of well drilling and control method thereof |
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| CN (1) | CN116456699B (en) |
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| KR101967317B1 (en) * | 2019-03-08 | 2019-04-09 | 안호재 | Portable explosion-proof type transformer |
| CN212086709U (en) * | 2020-06-19 | 2020-12-04 | 山东速达电气有限公司 | Frequency converter with explosion-proof structure |
| CN111818762A (en) * | 2020-07-16 | 2020-10-23 | 四机赛瓦石油钻采设备有限公司 | Explosion-proof converter of intelligence malleation |
| CN112114538A (en) * | 2020-09-10 | 2020-12-22 | 中信重工开诚智能装备有限公司 | Novel explosion-proof frequency converter water-cooling heat dissipation device and control method |
| CN214281208U (en) * | 2021-02-19 | 2021-09-24 | 湖北通泰众恒机电科技有限公司 | Explosion-proof type converter |
| CN215301310U (en) * | 2021-07-19 | 2021-12-24 | 高原(山东)机电设备有限公司 | Explosion-proof frequency converter with controllable heat dissipation |
| WO2023035607A1 (en) * | 2021-09-07 | 2023-03-16 | 南通四方罐式储运设备制造有限公司 | Anti-explosion smart temperature-controlled tank-type container |
| CN114007382A (en) * | 2021-10-26 | 2022-02-01 | 河北冠能石油机械制造有限公司 | Explosion-proof positive pressure cabinet and control method thereof |
| CN217381120U (en) * | 2022-01-20 | 2022-09-06 | 丰源(辽宁)高端装备制造产业有限公司 | Fuel oil calibration system |
| CN217721006U (en) * | 2022-03-28 | 2022-11-01 | 昆明云隼科技有限公司 | Frequency converter control box |
| CN218570088U (en) * | 2022-11-07 | 2023-03-03 | 武汉誉腾电力科技有限公司 | Explosion-proof type high frequency high voltage dc power supply |
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