CN113922251A - Intelligent safe explosion-proof electrical cabinet and explosion-proof method - Google Patents
Intelligent safe explosion-proof electrical cabinet and explosion-proof method Download PDFInfo
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- CN113922251A CN113922251A CN202111140256.9A CN202111140256A CN113922251A CN 113922251 A CN113922251 A CN 113922251A CN 202111140256 A CN202111140256 A CN 202111140256A CN 113922251 A CN113922251 A CN 113922251A
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- 238000000034 method Methods 0.000 title claims description 11
- 239000002360 explosive Substances 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims description 58
- 238000004590 computer program Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 abstract description 7
- 238000004880 explosion Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses an intelligent safe explosion-proof electrical cabinet, which comprises a cabinet body, wherein the outside of the cabinet body is connected with an outer sensor group of the cabinet, and an air outlet door and an air inlet door which penetrate through the inside of the cabinet body are arranged on the outside of the cabinet body; the bottom surface of the interior of the cabinet body is provided with a compressor, the compressor is communicated with a gas storage tank filled with compressed air, the interior of the cabinet body is also provided with an air outlet fan and an air inlet fan which are respectively and correspondingly connected with the positions of an air outlet door and an air inlet door, the interior of the cabinet body is provided with an in-cabinet sensor group, and the interior of the cabinet body is also provided with an explosion-proof system control module which is respectively and electrically connected with the in-cabinet sensor group, the outside-cabinet sensor group, the compressor, the air outlet door, the air inlet door, the air outlet fan and the air inlet fan; the outside-cabinet sensor group and the inside-cabinet sensor group at least comprise a gas sensor and a temperature sensor. The invention adopts the most economic means to isolate dust and flammable and explosive gas in the environment outside the electric cabinet, and effectively reduces the temperature in the cabinet, thereby ensuring the safe and stable operation of the electric cabinet.
Description
Technical Field
The invention belongs to the field of construction equipment, and particularly relates to an intelligent safe explosion-proof electrical cabinet and an explosion-proof method.
Background
During the construction or operation of some industrial and municipal works, flammable and explosive gases such as natural gas, coal gas and the like, and metal dust which is easy to generate danger and the like are used or generated. Since some accidents may cause flammable gas or dust to leak and spread, which affects the safety of electrical cabinets operating in these areas, these electrical cabinets need an explosion-proof function in order to increase the safety and stability of the operation of the electrical system. There are three main types of explosion-proof cabinets available: one is to strengthen the sealing and block the air circulation inside and outside the cabinet, which is not favorable for heat dissipation and is often used in junction boxes or button boxes without operating electric appliances; one type is positive pressure type, a pipeline needs to be additionally laid, gas is continuously introduced into the cabinet, the pressure in the electric cabinet is kept higher than that outside the cabinet, the cost is increased, long-term positive pressure operation is not beneficial to heat dissipation in the cabinet, and the pressure in the cabinet needs to be removed when the cabinet door is opened during maintenance, so that the maintenance is troublesome; one is that the fire extinguishing device is arranged in the cabinet, so that the loss caused by fire can be reduced, the fire or explosion cannot be prevented, and the cabinet cannot be used in flammable and explosive places. The various explosion-proof cabinets have respective defects when working in flammable and explosive areas, and the problems of explosion prevention and temperature reduction cannot be well solved under economic conditions.
Disclosure of Invention
The invention aims to provide an intelligent safe explosion-proof electrical cabinet and an explosion-proof method, which are used for isolating dust and flammable and explosive gas which are harmful to the electrical cabinet and mainly in the environment outside the electrical cabinet by adopting the most economical means, effectively reducing the temperature in the cabinet and ensuring the safe and stable operation of the electrical cabinet.
In order to solve the technical problems, the technical scheme of the invention is as follows: an intelligent safe explosion-proof electrical cabinet comprises a cabinet body, wherein the outside of the cabinet body is connected with an outside-cabinet sensor group, and an air outlet door and an air inlet door which penetrate through the inside of the cabinet body are arranged on the outside of the cabinet body; the bottom surface of the interior of the cabinet body is provided with a compressor, the compressor is communicated with a gas storage tank filled with compressed air, the interior of the cabinet body is also provided with an air outlet fan and an air inlet fan which are respectively and correspondingly connected with the positions of an air outlet door and an air inlet door, the interior of the cabinet body is provided with an in-cabinet sensor group, and the interior of the cabinet body is also provided with an explosion-proof system control module which is respectively and electrically connected with the in-cabinet sensor group, the outside-cabinet sensor group, the compressor, the air outlet door, the air inlet door, the air outlet fan and the air inlet fan; the outside-cabinet sensor group and the inside-cabinet sensor group at least comprise a gas sensor and a temperature sensor.
The top of the gas storage tank is provided with a pressure gauge and a safety valve.
The air storage tank is arranged outside the cabinet body.
An air outlet filter screen and an air inlet filter screen are respectively sleeved outside the air outlet door and the air inlet door.
The cabinet body is externally hinged with a cabinet door which is opened outwards, and a handle is arranged on the cabinet door.
The explosion-proof method using the intelligent safe explosion-proof electrical cabinet comprises the following steps:
detecting the concentration and temperature of flammable and explosive gases inside and outside the cabinet body;
under the condition that the air inlet door and the air outlet door are both opened, when the temperature inside the cabinet body is higher than the temperature outside the cabinet body and the temperature inside the cabinet body exceeds a preset temperature, the air inlet fan and the air outlet fan continuously run, and the air inlet fan and the air outlet fan are controlled to stop or intermittently run until the temperature inside the cabinet body is lower than the preset temperature; when the concentration of flammable and explosive gas outside the cabinet body exceeds the preset concentration, the air inlet door is closed, if the concentration of flammable and explosive gas in the cabinet is lower than the preset concentration, the air outlet door is closed, otherwise, compressed air in the air storage tank is released, and when the concentration of flammable and explosive gas in the cabinet is lower than the preset concentration, the compressor, the air inlet fan and the air outlet fan stop working;
when the temperature in the cabinet body exceeds the preset temperature under the condition that the air inlet door and the air outlet door are both closed, releasing compressed air in the air storage tank, opening the air outlet door and the air outlet fan to discharge hot air, and stopping the compressor, the air outlet door and the air outlet fan after the temperature in the cabinet body is lower than the preset temperature; when the concentration of flammable and explosive gas outside the cabinet body is lower than the preset concentration, the air inlet door and the air outlet door are opened, and the compressor works until the air storage tank is full of gas.
There is also provided a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method as described above when executing the computer program.
A computer-readable storage medium is also provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method as described above.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the intelligent safe explosion-proof electrical cabinet, the temperature sensor and the gas sensor are respectively arranged inside and outside the cabinet, the collected information is processed through the explosion-proof system control module, and the opening and closing of the air inlet and outlet air doors and the starting and stopping of the air inlet and outlet fans are controlled according to the set safety value, so that the purpose of active explosion prevention is achieved, and the safety and the operation stability of electrical equipment in the cabinet are improved.
(2) The air outlet filter screen and the air inlet filter screen on the outer side of the intelligent safe explosion-proof electrical cabinet can effectively prevent inflammable, explosive and metal dust from entering the cabinet body, improve the reliability and safety of equipment operation in the cabinet, and meanwhile, the filter screens are designed into a pluggable structure, so that the replacement is convenient, and the maintenance efficiency is improved.
(3) The air storage tank is provided with the compressor and the air storage tank, so that clean air in the cabinet can be stored in the air storage tank after being compressed, a compressed air pipeline does not need to be laid, and an air compression station does not need to be equipped, so that the engineering cost is reduced; meanwhile, the gas storage tank can provide clean air when the concentration of flammable and explosive gases in the cabinet exceeds the standard or the temperature exceeds the limit, so that the concentration of the gases in the cabinet is diluted or the temperature in the cabinet is reduced, and the safety and the stability of the operation of electrical equipment in the cabinet are improved.
(4) When the electric cabinet is overhauled, the door can be normally opened to overhaul as the common electric cabinet, additional operation is not needed, and the electric cabinet is convenient to use.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a front view of an embodiment of the present invention;
in the figure, 1-cabinet body, 2-external gas sensor, 3-external temperature sensor, 4-explosion-proof system control module, 5-pressure gauge, 6-safety valve, 7-gas storage tank, 8-micro compressor, 9-air outlet door, 10-air outlet fan, 11-air outlet filter screen, 12-air inlet door, 13-air inlet fan, 14-air inlet filter screen, 15-internal gas sensor, 16-external temperature sensor, and 17-handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and 2, the intelligent safe explosion-proof electrical cabinet of the invention is provided with, besides the cabinet body 1, the following components: the explosion-proof system comprises an explosion-proof system control module 4, a cabinet internal gas sensor 15, a cabinet internal temperature sensor 16, an air inlet fan 13, an air inlet door 12, an air outlet fan 10, an air outlet door 9 and a micro compressor 8. The gas sensor 15 in the cabinet and the temperature sensor 16 in the cabinet are arranged at the top in the cabinet and are used for detecting the concentration of flammable and combustible gas in the cabinet and the ambient temperature in the cabinet and transmitting a gas concentration signal and a temperature signal to the control module 4 of the explosion-proof system; an air inlet fan 13 and an air inlet door 12 are arranged at the lower part of one side in the cabinet body 1 and are used for sucking clean cold air outside the cabinet and opening and closing an air inlet, an air outlet fan 10 and an air outlet door 9 are arranged at the upper part of the same side and are used for exhausting hot air and flammable and explosive gas in the cabinet and opening and closing an air outlet so as to adjust the temperature and the concentration of the flammable and explosive gas in the cabinet; the air inlet door 12 and the air outlet door 9 adopt a plug board type structure and have measures for strengthening the sealing property. The micro compressor 8 is arranged at the bottom in the cabinet, and can compress clean air when the air in the cabinet meets the safety requirement, and then store the compressed air into the air storage tank 7 outside the cabinet; the explosion-proof system control module 4 is arranged at the other side in the cabinet and mainly used for receiving signals of all sensors, setting allowable values of concentration and temperature of gas inside and outside the cabinet and judging real working conditions according to measurement results, so that the opening and closing of the inlet fan and the outlet fan, the opening and closing of the inlet air outlet air door and the opening and closing of the micro compressor 8, the opening and closing of the gas storage tank 7 and the safety valve 6 and the like are controlled.
The invention discloses an intelligent safe explosion-proof electrical cabinet, which is characterized in that besides a cabinet body 1, an outside cabinet gas sensor 2, an outside cabinet temperature sensor 3, an air inlet filter screen 14, an air outlet filter screen 11, an air storage tank 7, a safety valve 6 and a pressure gauge 5 are arranged outside the cabinet. The system comprises an external cabinet gas sensor 2 and an external cabinet temperature sensor 3, wherein the external cabinet gas sensor is used for detecting the concentration of flammable and combustible gas in the external environment of the cabinet and the external cabinet environment temperature and transmitting a gas concentration signal and a temperature signal to an anti-explosion system control module 4; air inlet filter screen 14 and air-out filter screen 11 are installed respectively in the corresponding position of air intake and air outlet for filter the dust in the outer environment of cabinet, prevent that outside is flammable and explosive and metal dust from getting into in the cabinet, but air inlet filter screen 14 and air-out filter screen 11 adopt plug-in structure simultaneously, the quick replacement of being convenient for. The air storage tank 7 is arranged at the other side of the air port, an air inlet is communicated with the micro compressor 8, an air outlet is communicated with the inside of the cabinet through a valve and used for storing compressed air, and meanwhile, the compressed air in the air storage tank 7 is controlled by the explosion-proof system control module 4 to release clean air into the cabinet as necessary so as to adjust the temperature and the concentration of flammable and explosive gases in the cabinet; still install relief valve 6 and manometer 5 of guarantee gas holder 7 safe handling on the gas holder 7, manometer 5 installs at gas holder 7 top, makes things convenient for maintainer to inspect the gas storage pressure of gas holder 7 and judge the operating condition of miniature compressor 8.
The explosion-proof working process of the intelligent safe explosion-proof electrical cabinet comprises the following steps:
1) the intelligent explosion-proof electrical cabinet is installed, after a power supply is switched on and a cabinet door is closed, the explosion-proof system starts to work, the gas sensor and the temperature sensor inside and outside the cabinet respectively detect the concentration and the ambient temperature of flammable and explosive gas inside and outside the cabinet, and signals are input into the explosion-proof system control module 4.
2) The explosion-proof system control module 4 analyzes and judges the concentration of flammable and explosive gases and the ambient temperature in the cabinet, which are detected by the gas sensor 15 in the cabinet, and if the internal and external environments are in a normal state at the moment, the micro compressor 8 works, compressed air is stored in the air storage tank 7, and the system automatically stops after given pressure. Meanwhile, the air inlet door 12 and the air outlet door 9 are opened, the explosion-proof electrical cabinet runs as the same as a common electrical cabinet, and the air inlet fan 13 and the air outlet fan 10 are stopped or intermittently opened according to the setting. The air inlet filter screen 14 and the air outlet filter screen 11 can be plugged and replaced at any time as required without opening the cabinet door.
3) Under the normal operating condition, when detecting that the temperature is higher than the temperature outside the cabinet and when exceeding the setting value in the cabinet, air inlet fan 13 and air outlet fan 10 continuous operation, when the temperature satisfies the safety requirement in the cabinet, air inlet fan 13 and air outlet fan 10 resume normal condition, stop or intermittent operation.
4) When an accident happens and the concentration of flammable and explosive gases outside the cabinet exceeds a set value, the air inlet door 12 is closed, the concentration of flammable and explosive gases inside the cabinet is detected at the same time, and the air outlet door 9 is closed if the concentration is normal; if the concentration of the flammable and explosive gases in the cabinet is normal, the air outlet door 9 is closed, then the gas storage tank 7 is closed, the air inlet fan 13 and the air outlet fan 10 are simultaneously closed, and the explosion-proof cabinet is in closed operation at the moment.
5) During the closed operation, if the temperature in the cabinet exceeds the set value, the compressed air in the air storage tank 7 is released, the air outlet door 9 and the air outlet fan 10 are opened, the hot air is discharged, the air storage tank 7, the air outlet door 9 and the air outlet fan 10 are closed after the temperature is reduced to the allowable value, and the operation is repeated.
6) When the concentration of flammable and explosive gas outside the cabinet is detected to be reduced to a safe range, the air inlet door 12 and the air outlet fan 13 are opened, air is normally exchanged, meanwhile, the micro compressor 8 works to fill the air storage tank 7, and the explosion-proof cabinet is restored to a normal working state.
7) When needs overhaul the interior electrical equipment of cabinet, the maintainer can be the same with ordinary regulator cubicle, and normal cubical switchboard cabinet overhauls, need not extra operation.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. An intelligent safe explosion-proof electrical cabinet is characterized by comprising a cabinet body, wherein the outside of the cabinet body is connected with an outer sensor group of the cabinet, and an air outlet door and an air inlet door which run through the inside of the cabinet body are arranged on the outside of the cabinet body; the bottom surface of the interior of the cabinet body is provided with a compressor, the compressor is communicated with a gas storage tank filled with compressed air, the interior of the cabinet body is also provided with an air outlet fan and an air inlet fan which are respectively and correspondingly connected with the positions of an air outlet door and an air inlet door, the interior of the cabinet body is provided with an in-cabinet sensor group, and the interior of the cabinet body is also provided with an explosion-proof system control module which is respectively and electrically connected with the in-cabinet sensor group, the outside-cabinet sensor group, the compressor, the air outlet door, the air inlet door, the air outlet fan and the air inlet fan; the outside-cabinet sensor group and the inside-cabinet sensor group at least comprise a gas sensor and a temperature sensor.
2. The intelligent safe explosion-proof electrical cabinet as claimed in claim 1, wherein a pressure gauge and a safety valve are arranged on the top of the gas storage tank.
3. An intelligent safety explosion-proof electrical cabinet according to claim 1, wherein the gas storage tank is arranged outside the cabinet body.
4. The intelligent safe explosion-proof electrical cabinet according to claim 1, wherein an air outlet filter screen and an air inlet filter screen are respectively sleeved outside the air outlet door and the air inlet door.
5. An intelligent safety explosion-proof electrical cabinet according to claim 1, wherein a cabinet door which is opened outwards is hinged outside the cabinet body, and a handle is arranged on the cabinet door.
6. An explosion-proof method for an intelligent safety explosion-proof electrical cabinet according to claim 1, which comprises the following steps:
detecting the concentration and temperature of flammable and explosive gases inside and outside the cabinet body;
under the condition that the air inlet door and the air outlet door are both opened, when the temperature inside the cabinet body is higher than the temperature outside the cabinet body and the temperature inside the cabinet body exceeds a preset temperature, the air inlet fan and the air outlet fan continuously run, and the air inlet fan and the air outlet fan are controlled to stop or intermittently run until the temperature inside the cabinet body is lower than the preset temperature; when the concentration of flammable and explosive gas outside the cabinet body exceeds the preset concentration, the air inlet door is closed, if the concentration of flammable and explosive gas in the cabinet is lower than the preset concentration, the air outlet door is closed, otherwise, compressed air in the air storage tank is released, and when the concentration of flammable and explosive gas in the cabinet is lower than the preset concentration, the compressor, the air inlet fan and the air outlet fan stop working;
when the temperature in the cabinet body exceeds the preset temperature under the condition that the air inlet door and the air outlet door are both closed, releasing compressed air in the air storage tank, opening the air outlet door and the air outlet fan to discharge hot air, and stopping the compressor, the air outlet door and the air outlet fan after the temperature in the cabinet body is lower than the preset temperature; when the concentration of flammable and explosive gas outside the cabinet body is lower than the preset concentration, the air inlet door and the air outlet door are opened, and the compressor works until the air storage tank is full of gas.
7. A computer arrangement comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method as claimed in claim 6 are implemented when the processor executes the computer program.
8. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method as claimed in claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111140256.9A CN113922251A (en) | 2021-09-28 | 2021-09-28 | Intelligent safe explosion-proof electrical cabinet and explosion-proof method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111140256.9A CN113922251A (en) | 2021-09-28 | 2021-09-28 | Intelligent safe explosion-proof electrical cabinet and explosion-proof method |
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| Publication Number | Publication Date |
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| CN113922251A true CN113922251A (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111140256.9A Pending CN113922251A (en) | 2021-09-28 | 2021-09-28 | Intelligent safe explosion-proof electrical cabinet and explosion-proof method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930531A (en) * | 2017-11-17 | 2018-04-20 | 汪高华 | A kind of mixing granulation pelletizing machine with firing and explosion prevention |
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| CN106028756A (en) * | 2016-06-30 | 2016-10-12 | 深圳日海通讯技术股份有限公司 | Outdoor cabinet |
| CN206946339U (en) * | 2017-04-06 | 2018-01-30 | 胜狮货柜管理(上海)有限公司 | Explosion-proof malleation container safety control system |
| CN207169758U (en) * | 2017-07-31 | 2018-04-03 | 新昌县七星街道伟畅五金机械厂 | A kind of novel chemical laboratory explosion-protection equipment |
| CN208623187U (en) * | 2018-05-31 | 2019-03-19 | 武琨博 | A kind of automatic temperature-control power distribution cabinet |
| CN212453827U (en) * | 2020-05-29 | 2021-02-02 | 张景凤 | Large-scale explosion-proof cabinet |
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2021
- 2021-09-28 CN CN202111140256.9A patent/CN113922251A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106028756A (en) * | 2016-06-30 | 2016-10-12 | 深圳日海通讯技术股份有限公司 | Outdoor cabinet |
| CN206946339U (en) * | 2017-04-06 | 2018-01-30 | 胜狮货柜管理(上海)有限公司 | Explosion-proof malleation container safety control system |
| CN207169758U (en) * | 2017-07-31 | 2018-04-03 | 新昌县七星街道伟畅五金机械厂 | A kind of novel chemical laboratory explosion-protection equipment |
| CN208623187U (en) * | 2018-05-31 | 2019-03-19 | 武琨博 | A kind of automatic temperature-control power distribution cabinet |
| CN212453827U (en) * | 2020-05-29 | 2021-02-02 | 张景凤 | Large-scale explosion-proof cabinet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930531A (en) * | 2017-11-17 | 2018-04-20 | 汪高华 | A kind of mixing granulation pelletizing machine with firing and explosion prevention |
| CN107930531B (en) * | 2017-11-17 | 2023-10-13 | 汪高华 | Mixed granulating and granulating machine with explosion-proof and flame-proof functions |
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