CN220651148U - Temperature and humidity adjusting equipment for GIS - Google Patents
Temperature and humidity adjusting equipment for GIS Download PDFInfo
- Publication number
- CN220651148U CN220651148U CN202321934850.XU CN202321934850U CN220651148U CN 220651148 U CN220651148 U CN 220651148U CN 202321934850 U CN202321934850 U CN 202321934850U CN 220651148 U CN220651148 U CN 220651148U
- Authority
- CN
- China
- Prior art keywords
- rotating wheel
- heat exchanger
- temperature
- gis
- humidity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007791 dehumidification Methods 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 9
- 239000003673 groundwater Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000005485 electric heating Methods 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Drying Of Gases (AREA)
Abstract
The utility model discloses temperature and humidity regulating equipment for a GIS (gas insulated switchgear), which comprises a dehumidification mechanism, a humidifying mechanism, a heat exchanger, a first three-way electromagnetic valve, a second three-way electromagnetic valve and a pipeline fan, wherein the input end of the dehumidification mechanism and the input end of the humidifying mechanism are respectively communicated with a first interface and a second interface of the first three-way electromagnetic valve, the output end of the heat exchanger is communicated with a third interface of the first three-way electromagnetic valve, the output ends of the dehumidification mechanism and the humidifying mechanism are respectively communicated with a first port and a second port of the second three-way electromagnetic valve, and the output end of the pipeline fan is communicated with the input end of the heat exchanger; according to the utility model, the gas at one end inside the GIS equipment is extracted through the pipeline fan, the temperature is kept constant through the heat exchanger, the gas is controlled to enter the humidifying mechanism or the dehumidifying mechanism through the first three-way electromagnetic valve according to the humidity of the gas, and then the gas enters the other end of the GIS equipment after flowing back through the second three-way electromagnetic valve, so that the gas inside the GIS equipment keeps flowing, and meanwhile, the humidity of the gas inside the GIS equipment is regulated in real time.
Description
Technical Field
The utility model relates to the technical field of power equipment, in particular to temperature and humidity adjusting equipment for GIS.
Background
GIS (gas insulated substation) is an english abbreviation of gas-insulated totally enclosed combined electrical apparatus, because of its advantages such as compact structure, area is little, the reliability is high, the configuration is nimble, simple to operate, the security is strong, environmental adaptation ability is strong, maintenance work is little, make it not only in high voltage, the superhigh pressure field is widely used, and also in the superhigh voltage field is widely used, GIS is by the circuit breaker, isolator, earthing switch, mutual-inductor, arrester, generating line, connecting piece and terminal etc. make up, these equipment or parts are all sealed in metal grounding's shell, and the shell is inside to be filled with SF6 insulating gas of certain pressure, there is certain requirement to the temperature and the humidity of internal environment when GIS equipment is used, in prior art, GIS equipment internal environment is airtight, internal gas can not circulate at any time, unable temperature and humidity in the regulation equipment, lead to inside components and parts to break down easily, consequently, prior art has the defect, need to improve.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide temperature and humidity adjusting equipment for GIS so as to solve the problems in the background art. In order to achieve the above purpose, the present utility model adopts the following technical scheme:
this a temperature and humidity regulating equipment for GIS, including dehumidification mechanism, humidification mechanism, heat exchanger, first three way solenoid valve, second three way solenoid valve and pipeline fan, dehumidification mechanism's input with humidification mechanism's input respectively with first interface and the second interface intercommunication of first three way solenoid valve, the output of heat exchanger with the third interface intercommunication of first three way solenoid valve, dehumidification mechanism with humidification mechanism's output respectively with the first port and the second port intercommunication of second three way solenoid valve, the first end of second three way solenoid valve's third port intercommunication GIS equipment, pipeline fan's output with the input intercommunication of heat exchanger, the second end of GIS equipment is connected to its input.
Optionally, the heat exchanger is a shell-and-tube heat exchanger, and shell side fluid of the heat exchanger is communicated with external circulating groundwater.
Optionally, the dehumidification mechanism includes box, moisture absorption runner, drive arrangement and new trend fan, one end is provided with the runner chamber in the box, and the other end is provided with new trend chamber and circulation chamber side by side, moisture absorption runner rotate set up in the runner intracavity, and its first end respectively with new trend chamber with circulation chamber intercommunication, drive arrangement set up in on the box, be used for driving moisture absorption runner rotates, the output of new trend fan with new trend chamber intercommunication, its input and outside air intercommunication, circulation chamber with the first port intercommunication of second three-way solenoid valve, the runner chamber keep away from and correspond the one end intercommunication in new trend chamber has the new trend export, the runner chamber keep away from and correspond the one end in circulation chamber with the first interface intercommunication of first three-way solenoid valve.
Optionally, the driving device comprises a servo motor, a driving gear and a gear ring, wherein the gear ring is arranged on the moisture absorption rotating wheel, the servo motor is arranged on the box body, and the driving gear is arranged at the working end of the servo motor and meshed with the gear ring.
Optionally, an electric heating wire is arranged in the fresh air cavity.
Optionally, the humidification mechanism includes the second box, be provided with a plurality of atomizer in the second box, a plurality of atomizer all is connected with outside ultrasonic atomizer.
Optionally, the moisture absorption runner includes the runner body, the runner body is internal along its axial run-through and interval are provided with a plurality of air current passageway, adjacent two be provided with the moisture absorption medium between the air current passageway.
Optionally, the output end of the heat exchanger is respectively provided with a temperature sensor and a humidity sensor.
Optionally, the moisture absorption medium is silica gel.
Optionally, the heat exchanger is a shell-and-tube heat exchanger.
Compared with the prior art, the method has the beneficial effects that by adopting the scheme, the gas at one end inside the GIS equipment is extracted through the pipeline fan, the temperature is constant through the heat exchanger, the gas is controlled to enter the humidifying mechanism or the dehumidifying mechanism through the first three-way electromagnetic valve according to the humidity of the gas, and then enters the other end of the GIS equipment after flowing back through the second three-way electromagnetic valve, so that the gas inside the GIS equipment keeps flowing, and meanwhile, the humidity of the gas inside the GIS equipment is regulated in real time.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the first and second three-way solenoid valves according to the present utility model;
FIG. 3 is a schematic view of a dehumidifying mechanism according to the present utility model;
FIG. 4 is a schematic view of the structure of the inside of the case of the present utility model;
FIG. 5 is a schematic diagram of a driving apparatus according to the present utility model;
FIG. 6 is a schematic axial cross-sectional view of a desiccant rotor according to the present utility model;
the drawings above show: 1. a dehumidifying mechanism; 2. a humidifying mechanism; 3. a heat exchanger; 4. a first three-way electromagnetic valve; 5. a second three-way electromagnetic valve; 6. a duct fan; 41. a first interface; 42. a second interface; 43. a third interface; 51. a first port; 52. a second port; 53. a third port; 11. a case; 12. a hygroscopic wheel; 13. a driving device; 14. fresh air blower; 15. a rotor cavity; 16. a fresh air cavity; 17. a circulation chamber; 18. a fresh air outlet; 131. a servo motor; 132. a drive gear; 133. a gear ring; 121. an air flow channel; 122. a hygroscopic medium.
Detailed Description
For the purpose of facilitating an understanding of the present application, reference will now be made in greater detail to the present application, examples of which are illustrated in the accompanying drawings; preferred embodiments of the present application are illustrated in the accompanying drawings; this application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete.
It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two elements; the specific meaning of the terms in this application will be understood by those of ordinary skill in the art in the light of the specific circumstances; the terms "vertical", "horizontal", "left", "right", "front", "rear" and the like are used in this specification for illustrative purposes only.
Meanwhile, it is to be noted that the terms "first", "second", and the like in the description and the claims of the present application and the above drawings are used for distinguishing similar objects and not necessarily for describing a particular sequential or chronological order; it is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or otherwise described herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
As shown in fig. 1-2, an embodiment of the present utility model is that the temperature and humidity adjusting device for GIS includes a dehumidifying mechanism 1, a humidifying mechanism 2, a heat exchanger 3, a first three-way electromagnetic valve 4, a second three-way electromagnetic valve 5 and a pipeline fan 6, wherein an input end of the dehumidifying mechanism 1 and an input end of the humidifying mechanism 2 are respectively communicated with a first interface 41 and a second interface 42 of the first three-way electromagnetic valve 4, an output end of the heat exchanger 3 is respectively communicated with a third interface 43 of the first three-way electromagnetic valve 4, an output end of the dehumidifying mechanism 1 and an output end of the humidifying mechanism 2 are respectively communicated with a first port 51 and a second port 52 of the second three-way electromagnetic valve 5, a third port 53 of the second three-way electromagnetic valve 5 is communicated with a first end of the GIS device, an output end of the pipeline fan 6 is communicated with an input end of the heat exchanger 3, and an input end of the pipeline fan is connected with a second end of the GIS device.
In this embodiment, the input end of the dehumidification mechanism 1 is communicated with the first interface 41 of the first three-way electromagnetic valve 4, the input end of the humidification mechanism 2 is communicated with the second interface 42 of the first three-way electromagnetic valve 4, the output end of the heat exchanger 3 is communicated with the third interface 43 of the first three-way electromagnetic valve 4, the output end of the dehumidification mechanism 1 is communicated with the first port 51 of the second three-way electromagnetic valve 5, the output end of the humidification mechanism 2 is communicated with the second port 52 of the second three-way electromagnetic valve 5, the third port 53 of the second three-way electromagnetic valve 5 is communicated with the first end of the GIS device, the output end of the pipeline fan 6 is communicated with the input end of the heat exchanger 3, and the input end of the pipeline fan 6 is connected with the second end of the GIS device.
During operation, gas in one end of the GIS equipment is extracted through the pipeline fan 6, the gas passes through the heat exchanger 3, the temperature of the internal tube side fluid is kept consistent with that of the shell side fluid of the heat exchanger 3, the flow direction of the gas is controlled through the first three-way electromagnetic valve 4, the gas passes through the humidifying mechanism 2 or the dehumidifying mechanism 1 selectively, and then the gas enters the other end of the GIS equipment through the second three-way electromagnetic valve 5.
This application is through the inside one end of pipeline fan 6 extraction GIS equipment's gas, through heat exchanger 3 constant temperature, according to gaseous humidity again, get into humidification mechanism 2 or dehumidification mechanism 1 through the control of first three way solenoid valve 4 gas, get into the GIS equipment other end after the backward flow of second three way solenoid valve 5 again, make the inside gaseous circulation of GIS equipment to the inside gaseous humidity of real-time regulation.
In one embodiment, the shell side fluid of the heat exchanger 3 is in communication with external circulating groundwater.
Specifically, because the temperature of the groundwater is almost constant, in this embodiment, the groundwater is pumped by the water pump to be used as the shell side fluid of the heat exchanger 3, the gas in the GIS equipment is the tube side fluid, and the temperature of the gas in the GIS equipment is kept constant by heat exchange between the shell side fluid and the tube side fluid, so that the components in the GIS equipment are not affected by external temperature difference, and the service life is greatly prolonged.
In one embodiment, the dehumidifying mechanism 1 includes a box 11, a hygroscopic rotating wheel 12, a driving device 13 and a fresh air fan 14, one end in the box 11 is provided with a rotating wheel cavity 15, the other end is provided with a fresh air cavity 16 and a circulating cavity 17 in parallel, the hygroscopic rotating wheel 12 is rotatably arranged in the rotating wheel cavity 15, and a first end of the hygroscopic rotating wheel 12 is respectively communicated with the fresh air cavity 16 and the circulating cavity 17, the driving device 13 is arranged on the box 11 and is used for driving the hygroscopic rotating wheel 12 to rotate, an output end of the fresh air fan 14 is communicated with the fresh air cavity 16, an input end of the fresh air fan is communicated with outside air, the circulating cavity 17 is communicated with a first port 51 of the second three-way electromagnetic valve 5, one end, far away from and corresponding to the fresh air cavity 16, of the rotating wheel cavity 15 is communicated with a fresh air outlet 18, and one end far away from and corresponding to the circulating cavity 17 is communicated with a first interface 41 of the first three-way electromagnetic valve 4.
Specifically, the right-hand member of box 11 sets up runner chamber 15, the left end rear side sets up new trend chamber 16, the front side sets up circulation chamber 17, moisture absorption runner 12 is rotated along controlling direction level and is set up in runner chamber 15, its left end rear side and new trend chamber 16 intercommunication, the front side and circulation chamber 17 intercommunication, drive arrangement 13 sets up in the box 11 outside, be used for driving moisture absorption runner 12 and rotate, the output intercommunication new trend chamber 16 of new trend fan 14, its input and outside air intercommunication, circulation chamber 17 and the first port 51 intercommunication of second three way solenoid valve 5, the right-hand member rear side intercommunication in runner chamber 15 has new trend export 18, the first interface 41 of front side intercommunication first three way solenoid valve 4.
When the device works, GIS internal gas enters the moisture absorption rotating wheel 12 from the front end of the right end of the rotating wheel cavity 15, and enters the second three-way electromagnetic valve 5 through the circulating cavity 17 after being absorbed by the moisture absorption rotating wheel 12, the driving device 13 drives the moisture absorption rotating wheel 12 to rotate, so that the moisture saturation region of the moisture absorption rotating wheel 12 rotates to a position corresponding to the fresh air cavity 16, external dry gas enters the fresh air cavity 16 through the fresh air fan 14 and passes through the moisture absorption rotating wheel 12, and flows out from the fresh air outlet 18, so that the moisture saturation region of the moisture absorption rotating wheel 12 is dried and recycled.
In one embodiment, the driving device 13 includes a servo motor 131, a driving gear 132, and a gear ring 133, where the gear ring 133 is disposed on the moisture absorption wheel 12, the servo motor 131 is disposed on the case 11, and the driving gear 132 is disposed at a working end of the servo motor 131 and is meshed with the gear ring 133.
Specifically, the servo motor 131 is disposed outside the casing 11, the gear ring 133 is disposed outside the moisture absorption rotating wheel 12, the driving gear 132 is disposed at a working end of the servo motor 131 and is meshed with the gear ring 133, and when in operation, the servo motor 131 drives the driving gear 132 to rotate, and the driving gear 132 drives the gear ring 133 to rotate, thereby driving the moisture absorption rotating wheel 12 to rotate.
In one embodiment, an electric heating wire is disposed in the fresh air chamber 16.
Specifically, in order to make the moisture absorption rotating wheel 12 dry faster, an electric heating wire is arranged in the fresh air cavity 16 to heat the air passing through the fresh air cavity 16.
In one embodiment, the humidifying mechanism 2 includes a second box body, and a plurality of atomizing nozzles are arranged in the second box body, and are all connected with an external ultrasonic atomizer.
Specifically, in order to increase the humidity of the gas passing through the second tank, a plurality of atomizing nozzles are arranged in the second tank, and the atomizing nozzles are connected with the output end of the external ultrasonic atomizer.
In one embodiment, the moisture absorbing runner 12 includes a runner body, in which a plurality of airflow channels 121 are penetrated and spaced along an axial direction of the runner body, and a moisture absorbing medium 122 is disposed between two adjacent airflow channels 121.
Specifically, a plurality of gas channels penetrate through the rotor body along the left-right direction and are arranged at intervals, and a moisture absorption medium 122 is arranged between two adjacent gas channels, so that gas passing through the gas channels can fully contact with the moisture absorption medium 122.
In one embodiment, the output end of the heat exchanger 3 is provided with a temperature sensor and a humidity sensor, respectively.
Specifically, the output end of the heat exchanger 3 is communicated with the third interface 43 of the first three-way electromagnetic valve 4 through a pipeline, and the temperature sensor and the humidity sensor are respectively arranged in the pipeline and are used for detecting the temperature and the humidity of the gas passing through the heat exchanger 3 so as to control the flow direction of the gas in the next step through the first three-way electromagnetic valve 4.
In one embodiment, the moisture absorbing medium 122 is a silica gel material.
The silica gel material is used as the moisture absorption medium 122, so that the moisture absorption rotating wheel 12 has the advantages of washability, long service life, acid and alkali resistance, corrosion resistance and high temperature resistance.
In one embodiment, the heat exchanger 3 is a shell-and-tube heat exchanger.
The shell-and-tube heat exchanger has simple structure, low cost, wider flow section, easy cleaning of scale and high temperature and pressure.
The above-described features are continuously combined with each other to form various embodiments not listed above, and are regarded as the scope of the present utility model described in the specification; and, it will be apparent to those skilled in the art from this disclosure that modifications and variations can be made without departing from the scope of the utility model defined in the appended claims.
Claims (9)
1. A temperature and humidity control equipment for GIS, its characterized in that includes dehumidification mechanism, humidification mechanism, heat exchanger, first three way solenoid valve, second three way solenoid valve and pipeline fan, dehumidification mechanism's input with humidification mechanism's input respectively with first interface and the second interface intercommunication of first three way solenoid valve, the output of heat exchanger with the third interface intercommunication of first three way solenoid valve, dehumidification mechanism with humidification mechanism's output respectively with the first port and the second port intercommunication of second three way solenoid valve, the first end of second three way solenoid valve's third port intercommunication GIS equipment, pipeline fan's output with the input intercommunication of heat exchanger, the second end of GIS equipment is connected to its input.
2. The temperature and humidity conditioning apparatus for GIS according to claim 1, wherein the heat exchanger is a shell-and-tube heat exchanger, and wherein shell side fluid of the heat exchanger is in communication with external circulating groundwater.
3. The temperature and humidity adjusting device for a GIS according to claim 1, wherein the dehumidifying mechanism comprises a box body, a moisture absorption rotating wheel, a driving device and a fresh air fan, a rotating wheel cavity is arranged at one end in the box body, a fresh air cavity and a circulating cavity are arranged at the other end in parallel, the moisture absorption rotating wheel is rotatably arranged in the rotating wheel cavity, a first end of the moisture absorption rotating wheel is respectively communicated with the fresh air cavity and the circulating cavity, the driving device is arranged on the box body and is used for driving the moisture absorption rotating wheel to rotate, an output end of the fresh air fan is communicated with the fresh air cavity, an input end of the fresh air fan is communicated with outside air, the circulating cavity is communicated with a first port of the second three-way electromagnetic valve, a fresh air outlet is communicated with one end of the rotating wheel cavity, and one end of the rotating wheel cavity, which is far away from and corresponds to the circulating cavity, is communicated with a first port of the first three-way electromagnetic valve.
4. A temperature and humidity adjusting device for GIS according to claim 3, wherein the driving means comprises a servo motor, a driving gear and a gear ring, the gear ring is disposed on the moisture absorption rotating wheel, the servo motor is disposed on the box, and the driving gear is disposed at a working end of the servo motor and is meshed with the gear ring.
5. A temperature and humidity regulating device for GIS according to claim 3, wherein an electric heating wire is provided in the fresh air chamber.
6. The temperature and humidity adjusting device for a GIS according to claim 1, wherein the humidifying mechanism comprises a second box body, a plurality of atomizing nozzles are arranged in the second box body, and the atomizing nozzles are connected with an external ultrasonic atomizer.
7. A temperature and humidity adjustment device for GIS according to claim 3, wherein the moisture absorption rotating wheel comprises a rotating wheel body, a plurality of air flow channels are arranged in the rotating wheel body along the axial direction of the rotating wheel body at intervals, and a moisture absorption medium is arranged between two adjacent air flow channels.
8. The temperature and humidity adjusting device for a GIS according to claim 1, wherein the output end of the heat exchanger is provided with a temperature sensor and a humidity sensor, respectively.
9. The temperature and humidity conditioning apparatus for GIS according to claim 7, wherein the moisture absorbing medium is silica gel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202321934850.XU CN220651148U (en) | 2023-07-21 | 2023-07-21 | Temperature and humidity adjusting equipment for GIS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202321934850.XU CN220651148U (en) | 2023-07-21 | 2023-07-21 | Temperature and humidity adjusting equipment for GIS |
Publications (1)
Publication Number | Publication Date |
---|---|
CN220651148U true CN220651148U (en) | 2024-03-22 |
Family
ID=90264924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202321934850.XU Active CN220651148U (en) | 2023-07-21 | 2023-07-21 | Temperature and humidity adjusting equipment for GIS |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN220651148U (en) |
-
2023
- 2023-07-21 CN CN202321934850.XU patent/CN220651148U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108767711B (en) | Dehumidifying device | |
CN210838493U (en) | Dustproof high-voltage switch cabinet | |
CN106710807B (en) | Transformer intelligent air-cooling system and its control method | |
CN218334773U (en) | Temperature and humidity regulation and control equipment in transformer substation with prevent condensation structure | |
CN109361163A (en) | A kind of cool-down dehumidification electric power cabinet based on semiconductor chilling plate | |
CN220651148U (en) | Temperature and humidity adjusting equipment for GIS | |
CN109990625B (en) | Intelligent control compact dry-wet combined evaporation type air cooler | |
CN204554999U (en) | Air conditioner | |
CN212959146U (en) | Movable ventilator set with controllable air volume | |
CN210517379U (en) | Cooling equipment for electric power high-voltage switch cabinet | |
CN111884093A (en) | Power distribution cabinet for power engineering | |
CN219268164U (en) | Fixed box-type substation with fire extinguishing function | |
CN108131758B (en) | Cooling and dehumidifying energy-saving device adopting air conditioner and working method | |
CN110716600A (en) | Inside and outside isolation temperature and humidity adjusting system and method capable of achieving flexible configuration | |
JP2010281522A (en) | Ventilation device | |
CN112684822B (en) | Intelligent control system and control method for humidity of closed environment | |
CN216143942U (en) | Air door assembly, air treatment device and fresh air system | |
CN211876266U (en) | Intelligent ventilation system for large space | |
CN214176428U (en) | Micro-positive pressure intelligent dehumidifying device | |
CN203419144U (en) | Auxiliary heating device for urban rail engineering vehicle in machinery room | |
CN210806500U (en) | High-voltage power distribution cabinet with internal circulation heat exchange function | |
CN203278616U (en) | Temperature and humidity control system of cavity of anti-explosion type frequency converter core | |
CN203704204U (en) | Air conditioner for electrical cabinet | |
CN220103337U (en) | Machine room air conditioning system | |
CN218163355U (en) | Group control cabinet of high-efficiency refrigeration machine room |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |