CN114733325A - Intelligent controllable maintenance-free dehumidification device and dehumidification method thereof - Google Patents
Intelligent controllable maintenance-free dehumidification device and dehumidification method thereof Download PDFInfo
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- CN114733325A CN114733325A CN202210268402.4A CN202210268402A CN114733325A CN 114733325 A CN114733325 A CN 114733325A CN 202210268402 A CN202210268402 A CN 202210268402A CN 114733325 A CN114733325 A CN 114733325A
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Abstract
The invention relates to an intelligent controllable maintenance-free dehumidifying device and a dehumidifying method thereof, and belongs to the technical field of power transformation operation and maintenance of power systems. Including installing in the internal device casing of mechanism cabinet, install the dehumidification intake pipe in the device casing, the desorption intake pipe, the desorption blast pipe, the dehumidification blast pipe, communicate each other through the intervalve between dehumidification intake pipe and the dehumidification blast pipe, the adsorbent has been placed in the intervalve, dehumidification intake pipe one end is equipped with dehumidification air inlet and dehumidification admission valve, the dehumidification air inlet extends to the device casing outside, dehumidification blast pipe one end is equipped with dehumidification gas vent and dehumidification discharge valve, the dehumidification gas vent extends to the device casing outside, install the desorption admission valve in the desorption intake pipe, install desorption discharge valve on the desorption blast pipe, the above-mentioned valve all is controlled by the controller. The invention can switch various working modes by setting a control strategy, has various functions of moisture adsorption, desiccant desorption, automatic start-stop and the like, and has small volume, convenient carrying and use at any time.
Description
Technical Field
The invention relates to an intelligent controllable maintenance-free dehumidifying device and a dehumidifying method thereof, which are widely applied to dehumidifying and maintaining processes of narrow and closed spaces such as a terminal box, a mechanism box and a control cabinet in a transformer substation and belong to the technical field of power transformation operation and maintenance of power systems.
Background
At present, a plurality of terminal boxes and mechanism boxes are exposed in outdoor air, when weather conditions such as rain, cold and tide occur, the terminal boxes can cause humidity increase and condensation of air in a cabinet due to untight sealing of cabinet doors, large temperature difference between the inside and the outside of the cabinet and the like, and can possibly cause corrosion of wiring terminals in the cabinet, short circuit of relay contacts and the like, so that normal operation of equipment is influenced.
The interior dehydrating unit of present transformer substation cabinet adopts the heater more, through promoting the interior ambient temperature of cabinet, prevents the steam condensation. However, due to the unsmooth air flow in the cabinet, the humidity in the cabinet cannot be reduced fundamentally by the dehumidification method, and the equipment in the cabinet can still be damaged by high-humidity air. The adsorption dehumidification device is adopted, and the adsorbent needs to be replaced regularly, so that the cost is increased, and the daily maintenance workload of operation and maintenance personnel is increased, therefore, an intelligent controllable maintenance-free dehumidification device needs to be developed, the air moisture in the cabinet can be eliminated fundamentally, the humidity in the cabinet is reduced, and the regular maintenance is not needed.
Therefore, it is desirable to provide an intelligent controllable maintenance-free dehumidification device that can solve the above-mentioned technical problems.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides an intelligent controllable maintenance-free dehumidification device and a dehumidification method thereof.
One of the purposes of the invention is to provide an intelligent controllable maintenance-free dehumidifying device, which is characterized by comprising a casing 16 arranged in a mechanism box body 17, a dehumidifying air inlet pipe 2, a desorbing air inlet pipe 19, a desorbing exhaust pipe 20 and a dehumidifying exhaust pipe 11 arranged in the casing 16, wherein the dehumidifying air inlet pipe 2 and the dehumidifying exhaust pipe 11 are communicated with each other through a middle pipe 22 and are positioned on the same straight line, an exhaust fan 5 is arranged in the middle pipe 22, an adsorbent 8 is locally arranged in the middle pipe 22, the outlet end of the desorbing air inlet pipe 19 is communicated with the middle pipe 22, the inlet end extends to the outside of the mechanism box body 17, the inlet end of the desorbing exhaust pipe 20 is communicated with the middle pipe 22, the outlet end extends to the outside of the mechanism box body 17, one end of the dehumidifying air inlet pipe 2 is provided with a dehumidifying air inlet 1 and a dehumidifying air inlet valve 3, the dehumidifying air inlet 1 extends to the outside of the casing 16, a dehumidification exhaust port 12 and a dehumidification exhaust valve 9 are arranged at one end of the dehumidification exhaust pipe 11, the dehumidification exhaust port 12 extends to the outside of the device shell 16, a desorption air inlet valve 4 is arranged on a desorption air inlet pipe 19, a desorption exhaust valve 10 is arranged on a desorption exhaust pipe 20, the dehumidification air inlet valve 3, the desorption air inlet valve 4, the dehumidification exhaust valve 9 and the desorption exhaust valve 10 are controlled by a controller 14, the controller 14 is arranged outside the device shell 16, and the controller 14 is connected with a humidity sensor 13;
preferably, the adsorbent 8 is placed at the junction of the desorption exhaust pipe 20 and the intermediate pipe 22;
preferably, the outlet end of the desorption air inlet pipe 19 is provided with a desorption air inlet 18, and the outlet end of the desorption air outlet pipe 20 is provided with a desorption air outlet 21;
preferably, the outer surface of the bottom of the middle pipe 22 is provided with a pressure sensor 6 and a heating plate 7, and the hydraulic sensor 6 and the heating plate 7 are positioned below the adsorbent 8;
preferably, the controller 14 is connected to the dehumidification inlet valve 3, the desorption inlet valve 4, the dehumidification outlet valve 9, the desorption outlet valve 10, the pressure sensor 6 and the heating plate 7 through control lines 15.
The invention also provides a dehumidification method of the intelligent controllable maintenance-free dehumidification device, which is characterized by comprising the following steps:
1. dehumidification
The dehumidification air inlet valve 3 and the dehumidification air outlet valve 9 are opened, the desorption air inlet valve 4 and the desorption air outlet valve 10 are closed, the exhaust fan 5 works, air in the mechanism box body 17 can be introduced through the dehumidification air inlet pipe 2, at the moment, after high-humidity air is adsorbed by the adsorbent 8, low-humidity air flows through the dehumidification air outlet pipe 11 and enters the cabinet, and the dehumidification adsorption process is completed;
2. heating desorption
When the device is in a heating desorption mode, the dehumidification air inlet valve 3 and the dehumidification exhaust valve 9 are closed, the desorption air inlet valve 4 and the desorption exhaust valve 10 are opened, the exhaust fan 5 works, the heating plate 7 works, and water vapor desorbed by the adsorbent 8 is driven by the air flow of the fan and is guided out of the cabinet through the desorption exhaust pipe 20;
3. humidity control strategy
The free switching of different working modes is controlled by the controller 14 according to the data collected by the pressure sensor 6 and the air humidity sensor 13 in the cabinet, and the specific control strategy is as follows:
the lower part of the adsorbent 8 is provided with a pressure sensor 6, the read pressure can reflect the water absorption content of the adsorbent 8, so that the saturation and the activity of the adsorbent are indirectly reflected, a humidity sensor 13 is arranged outside the device, and the air humidity in the reaction cabinet is changed;
the pressure in the control strategy is provided with two threshold values, the high value represents saturation pressure, the low value represents initial pressure, the humidity is provided with a threshold value, when the pressure is higher than the high value or the pressure is higher than the low value and the humidity is smaller than the threshold value, the control device enters a heating desorption mode, when the pressure is lower than the high value and the humidity is higher than the threshold value, the control device enters a dehumidification adsorption mode, and when the pressure is lower than the low value and the humidity is lower than the threshold value, the control device enters a stop mode.
Compared with the prior art, the invention has the following positive effects: the invention discloses an intelligent controllable maintenance-free dehumidifying device which can be suitable for dehumidifying work in various small closed cabinets such as a terminal box, a mechanism box and a control cabinet, can be automatically switched according to environmental conditions and set requirements, has an obvious dehumidifying effect, and saves labor and material cost. It has the following components:
1. the dehumidifying adsorbent is arranged in the cabinet, so that water vapor in the cabinet can be actively adsorbed, and the ambient humidity in the cabinet is fundamentally reduced.
2. Built-in air exhauster carries out the air current guide according to the operation demand, can adjust the air exhauster rotational speed simultaneously according to ambient humidity, through the circulation of air adsorbent speed of regulation, and then change adsorption efficiency.
3. The built-in heating desorption device can make the adsorbed water vapor separate from the adsorbent, so that the adsorbent can keep activity for a long time, and the adsorbent is prevented from being replaced regularly.
4. Various sensors are arranged in the device, and the device can freely switch three working modes of moisture absorption, desorption and stop according to set standards through real-time acquisition and comparison of different parameters, so that the device is strong in environmental adaptability and high in intelligent degree.
5. A plurality of built-in controllable valves can guide the airflow in different working modes by starting and stopping the valves, and the working independence of various modes is improved.
6. By adopting the designed control strategy, the working modes can be automatically switched according to the environmental conditions, thereby avoiding manual intervention, saving manpower and being more intelligent.
Drawings
FIG. 1: the invention discloses a structural schematic diagram of an intelligent controllable maintenance-free dehumidifying device;
FIG. 2: the control strategy logic diagram of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An intelligent controllable maintenance-free dehumidification device of the embodiment, refer to fig. 1-2, including a housing 16 installed in a mechanism cabinet 17, a dehumidification inlet pipe 2, a desorption inlet pipe 19, a desorption exhaust pipe 20, and a dehumidification exhaust pipe 11 installed in the housing 16, wherein the dehumidification inlet pipe 2 and the dehumidification exhaust pipe 11 are communicated with each other through an intermediate pipe 22 and are located on the same straight line, an exhaust fan 5 is installed in the intermediate pipe 22 and is partially provided with an adsorbent 8, an outlet end of the desorption inlet pipe 19 is communicated with the intermediate pipe 22, an inlet end of the desorption inlet pipe extends to the outside of the mechanism cabinet 17, an inlet end of the desorption exhaust pipe 20 is communicated with the intermediate pipe 22, an outlet end extends to the outside of the mechanism cabinet 17, one end of the dehumidification inlet pipe 2 is provided with a dehumidification inlet 1 and a dehumidification inlet valve 3, the dehumidification inlet 1 extends to the outside of the housing 16, one end of the dehumidification exhaust pipe 11 is provided with a dehumidification outlet 12 and a dehumidification exhaust valve 9, the dehumidification air outlet 12 extends to the outside of the device shell 16, the desorption air inlet pipe 19 is provided with a desorption air inlet valve 4, the desorption exhaust pipe 20 is provided with a desorption exhaust valve 10, the dehumidification air inlet valve 3, the desorption air inlet valve 4, the dehumidification exhaust valve 9 and the desorption exhaust valve 10 are controlled by a controller 14, the controller 14 is arranged outside the device shell 16, and the controller 14 is connected with a humidity sensor 13.
Wherein, the adsorbent 8 is arranged at the junction of the desorption exhaust pipe 20 and the intermediate pipe 22; the outlet end of the desorption air inlet pipe 19 is provided with a desorption air inlet 18, and the outlet end of the desorption exhaust pipe 20 is provided with a desorption air outlet 21; the outer surface of the bottom of the middle pipe 22 is provided with a pressure sensor 6 and a heating plate 7, and the hydraulic sensor 6 and the heating plate 7 are positioned below the adsorbent 8; the controller 14 is connected with the dehumidification air inlet valve 3, the desorption air inlet valve 4, the dehumidification exhaust valve 9, the desorption exhaust valve 10, the pressure sensor 6 and the heating plate 7 through control lines 15.
The dehumidification method of the intelligent controllable maintenance-free dehumidification device comprises the following steps:
1) the dehumidification air inlet valve 3 and the dehumidification air outlet valve 9 are opened, the desorption air inlet valve 4 and the desorption air outlet valve 10 are closed, the exhaust fan 5 works, air in the mechanism box body 17 can be introduced through the dehumidification air inlet pipe 2, at the moment, after high-humidity air is adsorbed by the adsorbent 8, low-humidity air flows through the dehumidification air outlet pipe 11 and enters the cabinet, and the dehumidification adsorption process is completed;
2) when the device is in a heating desorption mode, the dehumidification air inlet valve 3 and the dehumidification exhaust valve 9 are closed, the desorption air inlet valve 4 and the desorption exhaust valve 10 are opened, the exhaust fan 5 works, the heating plate 7 works, and water vapor desorbed by the adsorbent 8 is driven by the air flow of the fan and is guided out of the cabinet through the desorption exhaust pipe 20;
3) the free switching of different working modes is controlled by the controller 14 according to the data collected by the pressure sensor 6 and the air humidity sensor 13 in the cabinet, and the specific control strategy is as follows:
the lower part of the adsorbent 8 is provided with a pressure sensor 6, the read pressure can reflect the water absorption content of the adsorbent 8, so that the saturation and the activity of the adsorbent are indirectly reflected, a humidity sensor 13 is arranged outside the device, and the air humidity in the reaction cabinet is changed; the pressure in the control strategy is provided with two threshold values, the high value represents saturation pressure, the low value represents initial pressure, the humidity is provided with a threshold value, when the pressure is higher than the high value or the pressure is higher than the low value and the humidity is smaller than the threshold value, the control device enters a heating desorption mode, when the pressure is lower than the high value and the humidity is higher than the threshold value, the control device enters a dehumidification adsorption mode, and when the pressure is lower than the low value and the humidity is lower than the threshold value, the control device enters a stop mode.
The invention relates to an intelligent controllable maintenance-free dehumidifying device which can intelligently finish dehumidifying work in a closed narrow space such as a terminal box, a mechanism box and the like. The device has simple structure, small volume and convenient carrying, and can be placed in the box body when in use. This device is equipped with three kinds of mode of absorption dehumidification mode, heating desorption mode, work stop, can carry out the switching between the mode by oneself according to the environmental aspect in the box, the absorption vigor, the dehumidification standard requirement of dehumidification adsorbent etc.. The dehumidification process comprises two stages of adsorption and desorption, which are carried out in a time-sharing manner, so that the dehumidification efficiency can be improved, and the adsorbent can keep the activity for a long time under the condition of not replacing the adsorbent. The start-stop coordination among the controllable air guide valves also improves the working independence under different modes. The switching of the working modes is carried out according to a control strategy, manual intervention is not needed, the working precision is improved, the labor is saved, and the working efficiency of operation and maintenance personnel is greatly improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An intelligent controllable maintenance-free dehumidifying device is characterized by comprising a device shell arranged in a mechanism cabinet body, wherein a dehumidifying air inlet pipe, a desorbing exhaust pipe and a dehumidifying exhaust pipe are arranged in the device shell, the dehumidifying air inlet pipe and the dehumidifying exhaust pipe are mutually communicated through an intermediate pipe and are positioned on the same straight line, an exhaust fan is arranged in the intermediate pipe, an adsorbent is locally placed in the intermediate pipe, the outlet end of the desorbing air inlet pipe is communicated with the intermediate pipe, the inlet end of the desorbing exhaust pipe is extended to the outside of the mechanism cabinet body, the inlet end of the desorbing exhaust pipe is communicated with the intermediate pipe, the outlet end of the desorbing exhaust pipe is extended to the outside of the mechanism cabinet body, one end of the dehumidifying air inlet pipe is provided with a dehumidifying air inlet and a dehumidifying air inlet valve, the dehumidifying air outlet is extended to the outside of the device shell, the desorption air inlet pipe is provided with a desorption air inlet valve, the desorption exhaust pipe is provided with a desorption exhaust valve, the dehumidification air inlet valve, the desorption air inlet valve, the dehumidification exhaust valve and the desorption exhaust valve are all controlled by a controller, the controller is arranged outside the device shell, and the controller is connected with a humidity sensor.
2. An intelligent controllable maintenance-free dehumidification device as claimed in claim 1, wherein said adsorbent is placed at the junction of the desorption exhaust pipe and the intermediate pipe.
3. The intelligent controllable maintenance-free dehumidification device as claimed in claim 1, wherein the outlet end of the desorption inlet pipe is provided with a desorption inlet, and the outlet end of the desorption exhaust pipe is provided with a desorption outlet.
4. An intelligent controllable maintenance-free dehumidification device as claimed in claim 1, wherein the outer surface of the bottom of the middle pipe is provided with a pressure sensor and a heating plate, and the hydraulic sensor and the heating plate are located below the adsorbent.
5. The intelligent controllable maintenance-free dehumidifying device of claim 4, wherein the controller is connected with the dehumidifying air inlet valve, the desorbing air inlet valve, the dehumidifying air outlet valve, the desorbing air outlet valve, the pressure sensor and the heating plate through control lines.
6. An intelligent controllable maintenance-free dehumidifying device as claimed in any one of claims 1-5, wherein a dehumidifying method of the intelligent controllable maintenance-free dehumidifying device comprises the steps of:
1) dehumidification
The dehumidification air inlet valve and the dehumidification exhaust valve are opened, the desorption air inlet valve and the desorption exhaust valve are closed, the exhaust fan works, air in the cabinet body of the mechanism can be introduced through the dehumidification air inlet pipe, at the moment, after high-humidity air is adsorbed by the adsorbent, low-humidity air flows through the dehumidification exhaust pipe to enter the cabinet, and the dehumidification adsorption process is completed;
2) heating desorption
When the device is in a heating desorption mode, the dehumidification air inlet valve and the dehumidification exhaust valve are closed, the desorption air inlet valve and the desorption exhaust valve are opened, the exhaust fan works, the heating plate works, and water vapor desorbed by the adsorbent is driven by the airflow of the fan and is guided out of the cabinet through the desorption exhaust pipe;
3) humidity control strategy
The free switching of different working modes is controlled by the controller according to the data collected by the pressure sensor and the air humidity sensor in the cabinet, and the specific control strategy is as follows:
the lower part of the adsorbent is provided with a pressure sensor, the read pressure can reflect the water absorption content of the adsorbent, so that the saturation and the activity of the adsorbent are indirectly reflected, the device is externally provided with a humidity sensor, and the air humidity in the reaction cabinet is measured;
the pressure in the control strategy is provided with two threshold values, the high value represents saturation pressure, the low value represents initial pressure, the humidity is provided with a threshold value, when the pressure is higher than the high value or the pressure is higher than the low value and the humidity is smaller than the threshold value, the control device enters a heating desorption mode, when the pressure is lower than the high value and the humidity is higher than the threshold value, the control device enters a dehumidification adsorption mode, and when the pressure is lower than the low value and the humidity is lower than the threshold value, the control device enters a stop mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210268402.4A CN114733325A (en) | 2022-03-18 | 2022-03-18 | Intelligent controllable maintenance-free dehumidification device and dehumidification method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210268402.4A CN114733325A (en) | 2022-03-18 | 2022-03-18 | Intelligent controllable maintenance-free dehumidification device and dehumidification method thereof |
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| CN114733325A true CN114733325A (en) | 2022-07-12 |
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| CN202210268402.4A Pending CN114733325A (en) | 2022-03-18 | 2022-03-18 | Intelligent controllable maintenance-free dehumidification device and dehumidification method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116936828A (en) * | 2023-07-19 | 2023-10-24 | 浙江海盐力源环保科技股份有限公司 | Efficient fuel cell membrane electrode coating device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130239814A1 (en) * | 2010-12-02 | 2013-09-19 | Mitsubishi Electric Corporation | Dehumidifying system |
| CN209461809U (en) * | 2019-03-19 | 2019-10-01 | 国网陕西省电力公司西咸新区供电公司 | A kind of terminal box for dehumidifying, dehumidifying |
-
2022
- 2022-03-18 CN CN202210268402.4A patent/CN114733325A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130239814A1 (en) * | 2010-12-02 | 2013-09-19 | Mitsubishi Electric Corporation | Dehumidifying system |
| CN209461809U (en) * | 2019-03-19 | 2019-10-01 | 国网陕西省电力公司西咸新区供电公司 | A kind of terminal box for dehumidifying, dehumidifying |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116936828A (en) * | 2023-07-19 | 2023-10-24 | 浙江海盐力源环保科技股份有限公司 | Efficient fuel cell membrane electrode coating device |
| CN116936828B (en) * | 2023-07-19 | 2024-04-30 | 浙江海盐力源环保科技股份有限公司 | Efficient fuel cell membrane electrode coating device |
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