CN220558903U - Control cabinet cooling and dehumidifying control system taking micro-positive pressure into consideration - Google Patents
Control cabinet cooling and dehumidifying control system taking micro-positive pressure into consideration Download PDFInfo
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- CN220558903U CN220558903U CN202322041532.7U CN202322041532U CN220558903U CN 220558903 U CN220558903 U CN 220558903U CN 202322041532 U CN202322041532 U CN 202322041532U CN 220558903 U CN220558903 U CN 220558903U
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- control cabinet
- compressed air
- dehumidifying
- air
- pressure
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- 238000001816 cooling Methods 0.000 title claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model discloses a control cabinet cooling and dehumidifying control system taking micro-positive pressure into consideration, which comprises an air compressor, a control cabinet and a compressed air pipeline, wherein one end of the compressed air pipeline is communicated with a compressed air outlet arranged on the air compressor, the other end of the compressed air pipeline stretches into the control cabinet and is communicated with an air distribution device arranged at the bottom in the control cabinet, an exhaust hole is arranged on the control cabinet, and the air distribution device comprises a plurality of air outlet holes facing the exhaust hole; the compressed air pipeline is provided with a regulating valve, a controller is arranged in the control cabinet, and the controller is connected with the regulating valve. According to the utility model, the control cabinet is cooled and dehumidified by using the dried compressed air, the difference between the temperature of the compressed air and the temperature in the control cabinet is small, and condensation is not easy to generate after the compressed air is dried; the compressed air flow rate is high, and the cooling effect is obvious; and the compressed air is almost dust-free after being filtered, so that the inside of the cabinet can be kept clean, and the low-temperature, dry and clean environment in the control cabinet is beneficial to prolonging the service life of components.
Description
Technical Field
The utility model relates to a control cabinet cooling and dehumidifying control system taking micro-positive pressure into consideration, and belongs to the technical field of control cabinet cooling and dehumidifying.
Background
At present, the cooling and dehumidifying modes of the control cabinet mainly comprise modes of natural ventilation, forced ventilation, cabinet air conditioning and the like. The natural ventilation does not consume electric energy, but is only suitable for a control cabinet with small heating value; the forced-ventilated cooling effect is good, and the forced-ventilated cooling device is applicable to most control cabinets with small and medium heating values, but is easy to suck dust, and has adverse effect on electrical equipment when the environmental humidity is high; the cabinet air-conditioning mode has obvious cooling and dehumidifying effects, but more energy is required to be consumed, and condensation is easy to generate when the temperature difference between cold air of the air-conditioner and the control cabinet is larger.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a cooling and dehumidifying control system of a control cabinet taking micro-positive pressure into consideration.
The technical scheme adopted for solving the technical problems is as follows:
the control cabinet cooling and dehumidifying control system taking account of micro-positive pressure comprises an air compressor, a control cabinet and a compressed air pipeline, wherein one end of the compressed air pipeline is communicated with a compressed air outlet arranged on the air compressor, the other end of the compressed air pipeline stretches into the control cabinet and is communicated with an air distribution device arranged at the bottom in the control cabinet, an exhaust hole is formed in the control cabinet, and the air distribution device comprises a plurality of air outlet holes facing the exhaust hole; the compressed air pipeline is provided with a regulating valve, a controller is arranged in the control cabinet, and the controller is connected with the regulating valve.
In one embodiment of the present utility model, the air distribution device is a hollow cylindrical rod, the plurality of air outlet holes are arranged on the surface of the hollow cylindrical rod and are communicated with the inside of the hollow cylindrical rod, and the end part of the compressed air pipeline is also communicated with the inside of the hollow cylindrical rod.
In one embodiment of the utility model, a temperature and humidity sensor is arranged in the control cabinet, and the temperature and humidity sensor is connected with the controller.
In one embodiment of the utility model, a micro pressure difference sensor is further arranged in the control cabinet, the micro pressure difference sensor is connected with the controller, and is provided with two pressure guiding holes, wherein one pressure guiding hole is communicated with the inside of the control cabinet and is used for detecting the pressure in the control cabinet; the other pressure guiding hole is connected with an air pipe, the air pipe extends out of the control cabinet, and the other pressure guiding hole is used for detecting the pressure outside the control cabinet.
In one embodiment of the utility model, a pressure reducing valve is provided on the compressed air line.
In one embodiment of the utility model, a manual valve is also provided on the compressed air line.
In one embodiment of the utility model, the regulating valve is an electric regulating valve or a pneumatic regulating valve.
In one embodiment of the present utility model, a cooler, a dryer and a filter are further arranged on the compressed air pipeline.
The beneficial effects of the utility model are as follows:
the utility model uses dry compressed air to cool and dehumidify the control cabinet. Because the temperature of the compressed air is smaller than the temperature of the air outlet of the air conditioner, and the compressed air is subjected to the drying treatment of the dryer, condensation is not easy to generate; although the temperature of the compressed air used as a cooling source is low without an air outlet of an air conditioner, the flow rate of the compressed air is high, and the cooling effect is quite obvious; and the compressed air is almost dust-free after being filtered by the filter, so that the inside of the cabinet can be kept clean, and the low-temperature, dry and clean environment in the control cabinet is beneficial to prolonging the service life of components. In addition, in the place where the positive pressure is required to be maintained, such as the vicinity of a sewage pool in a corrosive gas environment, components in the control cabinet are extremely easy to corrode, the service life is seriously affected, and at the moment, the surrounding corrosive gas is required to be isolated. The micro-pressure difference sensor is arranged in the control cabinet, one pressure leading hole is used for detecting the pressure in the control cabinet, the other pressure leading hole is connected to the outside of the control cabinet through an air pipe for detecting the pressure outside the control cabinet, and the controller controls the opening of the regulating valve according to the real-time pressure difference value, so that the micro-positive pressure is always maintained in the control cabinet, and components in the control cabinet are protected.
Drawings
Fig. 1 is a schematic structural diagram of a cooling and dehumidifying control system of a control cabinet in an embodiment.
In the figure: 1. an air compressor; 2. a control cabinet; 3. a compressed air conduit; 4. a manual valve; 5. a regulating valve; 6. a gas distribution device; 7. a controller; 8. a temperature and humidity sensor; 9. a micro differential pressure sensor; 10. an exhaust hole; 11. a pressure reducing valve; 12. and an air pipe.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Referring to fig. 1, a control cabinet cooling and dehumidifying control system taking into account micro-positive pressure comprises an air compressor 1, a control cabinet 2 and a compressed air pipeline 3, wherein one end of the compressed air pipeline 3 is communicated with a compressed air outlet arranged on the air compressor 1, the other end of the compressed air pipeline extends into the control cabinet 2 and is communicated with an air distribution device 6 arranged at the bottom in the control cabinet 2, an exhaust hole 10 is formed in the control cabinet 2, and the air distribution device 6 comprises a plurality of air outlet holes facing the exhaust hole 10; the compressed air pipeline 3 is provided with a regulating valve 5, a controller 7 is arranged in the control cabinet 2, and the controller 7 is in data connection with the regulating valve 5.
Optionally, in one embodiment, the air distribution device 6 is a hollow cylindrical rod, a plurality of air outlet holes are disposed on the surface of the hollow cylindrical rod and are communicated with the inside of the hollow cylindrical rod, and the end of the compressed air pipeline 3 is also communicated with the inside of the hollow cylindrical rod. Compressed air generated by the air compressor 1 is discharged into the air distribution device 6 from a compressed air outlet at the upper end of the air compressor and the compressed air pipeline 3, and is uniformly discharged from a plurality of air outlet holes of the air distribution device 6, so that the compressed air uniformly flows through the cabinet body of the whole control cabinet 2, and finally is discharged out of the cabinet through the air outlet holes 10 at the upper part of the control cabinet 2, and the cooling and dehumidifying effects of the control cabinet 2 are achieved.
Optionally, in one embodiment, a temperature and humidity sensor 8 is disposed in the control cabinet 2, the temperature and humidity sensor 8 is located at a middle upper position in the control cabinet 2, the temperature and humidity sensor 8 is in data connection with the controller 7, and the temperature and humidity sensor 8 is used for detecting the temperature and humidity in the control cabinet 2 and uploading the detected data to the controller 7.
Optionally, in one embodiment, a micro pressure difference sensor 9 is further disposed in the control cabinet 2, the micro pressure difference sensor 9 is in data connection with the controller 7, and the micro pressure difference sensor 9 has two pressure guiding holes, wherein one pressure guiding hole is communicated with the inside of the control cabinet 2 and is used for detecting the pressure in the control cabinet 2; the other pressure guiding hole is connected with an air pipe 12, the air pipe 12 extends out of the control cabinet 2, and the other pressure guiding hole is used for detecting the pressure outside the control cabinet 2, so that the detection of the pressure difference inside and outside the control cabinet 2 is realized. In the place where the positive pressure is required to be maintained, such as the vicinity of a sewage pool in a corrosive gas environment, components in the control cabinet 2 are extremely susceptible to corrosion, and the service life is seriously affected, and at this time, the surrounding corrosive gas needs to be isolated. A micro pressure difference sensor 9 is arranged in the control cabinet 2, one pressure leading hole detects the pressure in the control cabinet 2, the other pressure leading hole is connected to the outside of the control cabinet 2 through an air pipe 12 to detect the pressure outside the control cabinet 2, and the controller 7 controls the opening of the regulating valve 5 according to the real-time pressure difference value, so that the micro positive pressure is always maintained in the control cabinet 2, and components in the control cabinet are protected.
Optionally, in one embodiment, a pressure reducing valve 11 is disposed on the compressed air pipe 3, and the pressure reducing valve 11 is used for reducing the pressure of the compressed air pipe 3 to prevent the pressure in the compressed air pipe 3 from being too high.
Optionally, in one embodiment, a manual valve 4 is also provided on the compressed air line 3. When the controller 7 or the regulating valve 5 is not active, the flow rate of the compressed air in the compressed air pipe 3 is adjusted by manually adjusting the manual valve 4.
Optionally, in one embodiment, the compressed air pipeline 3 is further provided with a cooler, a dryer and a filter (not shown in the figure), and the air compressor 1 generates a dry and clean air source after the compressed air passes through the cooler, the dryer and the filter.
Alternatively, in one embodiment, the regulating valve 5 is an electric regulating valve or a pneumatic regulating valve.
The working principle of the utility model is as follows:
the utility model uses dry compressed air to cool and dehumidify the control cabinet 2. Many plants have specialized compressor houses where compressed air from an air compressor 1 is passed through coolers, dryers, filters and then dried and cleaned as a source of air.
The air source is connected with the control cabinet 2 through the compressed air pipeline 3, the pipeline close to the control cabinet 2 is provided with the regulating valve 5 and the pressure reducing valve 11, the air distribution device 6 is arranged at the inner bottom of the control cabinet 2, the temperature and humidity sensor 8 is arranged at the middle upper part of the control cabinet 2, and the temperature and humidity sensor 8 is connected with the controller 7. When the temperature or humidity in the control cabinet 2 exceeds the set value of the controller 7, the controller 7 outputs a signal to automatically open the regulating valve 5, and compressed air flows through the whole cabinet body and is discharged out of the cabinet through the exhaust hole 10 at the upper part of the cabinet body, so that the cooling and dehumidifying effects of the control cabinet 2 are achieved; when the temperature or humidity in the control cabinet 2 is smaller than the set value of the controller 7, the controller 7 outputs a signal to automatically close the regulating valve 5. Because the temperature of the compressed air is smaller than the temperature of the air outlet of the air conditioner, and the temperature difference between the temperature of the compressed air and the temperature in the control cabinet 2 is smaller, and the compressed air is subjected to the drying treatment of the dryer, condensation is not easy to generate; although the temperature of the compressed air used as a cooling source is low without an air outlet of an air conditioner, the flow rate of the compressed air is high, and the cooling effect is quite obvious; and the compressed air is almost dust-free after being filtered by the filter, so that the inside of the cabinet can be kept clean. The low-temperature, dry and clean environment in the control cabinet 2 is beneficial to prolonging the service life of components.
The control cabinet cooling and dehumidifying control system provided by the utility model is suitable for being installed in a control cabinet with a severe field environment, in particular to a factory with large outdoor dust, a corrosive gas environment and a special air-pressure machine room, such as a steel plant, a chemical plant, a sewage treatment plant and the like. If a special air compressor is not arranged on site, a small air compressor air-entrapping triplet can be used for replacing the air-entrapping triplet, wherein the air-entrapping triplet is F.R.L, in the pneumatic technology, three air source treatment elements of an air filter (F), a pressure reducing valve (R) and an oil mist device (L) are assembled together to be called as the air-entrapping triplet, so that air sources entering a pneumatic instrument are purified, filtered and depressurized to the rated air source pressure for the instrument.
The scope of the present utility model is not limited to the above-described embodiments, but is intended to be limited to the appended claims, any modifications, equivalents, improvements and alternatives falling within the spirit and principle of the inventive concept, which can be made by those skilled in the art.
Claims (8)
1. The control cabinet cooling and dehumidifying control system taking account of micro-positive pressure is characterized by comprising an air compressor, a control cabinet and a compressed air pipeline, wherein one end of the compressed air pipeline is communicated with a compressed air outlet arranged on the air compressor, the other end of the compressed air pipeline stretches into the control cabinet and is communicated with an air distribution device arranged at the bottom in the control cabinet, an exhaust hole is formed in the control cabinet, and the air distribution device comprises a plurality of air outlet holes facing the exhaust hole; the compressed air pipeline is provided with a regulating valve, a controller is arranged in the control cabinet, and the controller is connected with the regulating valve.
2. The control cabinet cooling and dehumidifying control system according to claim 1, wherein the air distribution device is a hollow cylindrical rod, a plurality of air outlet holes are formed in the surface of the hollow cylindrical rod and are communicated with the inside of the hollow cylindrical rod, and the end part of the compressed air pipeline is also communicated with the inside of the hollow cylindrical rod.
3. The control cabinet cooling and dehumidifying control system according to claim 2, wherein a temperature and humidity sensor is arranged in the control cabinet and is connected with the controller.
4. The control cabinet cooling and dehumidifying control system according to claim 3, wherein a micro pressure difference sensor is further arranged in the control cabinet and connected with the controller, the micro pressure difference sensor is provided with two pressure guiding holes, one of the pressure guiding holes is communicated with the inside of the control cabinet and used for detecting the pressure in the control cabinet; the other pressure guiding hole is connected with an air pipe, the air pipe extends out of the control cabinet, and the other pressure guiding hole is used for detecting the pressure outside the control cabinet.
5. The control cabinet cooling and dehumidifying control system as claimed in claim 1, wherein a pressure reducing valve is provided on the compressed air pipe.
6. The control cabinet cooling and dehumidifying control system as claimed in claim 1, wherein the compressed air pipe is further provided with a manual valve.
7. The control cabinet cooling and dehumidifying control system as claimed in claim 1, wherein the regulating valve is an electric regulating valve or a pneumatic regulating valve.
8. The control cabinet cooling and dehumidifying control system as claimed in any one of claims 1 to 7, wherein a cooler, a dryer, a filter are further provided on the compressed air pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322041532.7U CN220558903U (en) | 2023-07-31 | 2023-07-31 | Control cabinet cooling and dehumidifying control system taking micro-positive pressure into consideration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322041532.7U CN220558903U (en) | 2023-07-31 | 2023-07-31 | Control cabinet cooling and dehumidifying control system taking micro-positive pressure into consideration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220558903U true CN220558903U (en) | 2024-03-08 |
Family
ID=90091041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322041532.7U Active CN220558903U (en) | 2023-07-31 | 2023-07-31 | Control cabinet cooling and dehumidifying control system taking micro-positive pressure into consideration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220558903U (en) |
-
2023
- 2023-07-31 CN CN202322041532.7U patent/CN220558903U/en active Active
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