CN213636731U - Internal environment detection control system for electrical cabinet - Google Patents
Internal environment detection control system for electrical cabinet Download PDFInfo
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- CN213636731U CN213636731U CN202022036961.1U CN202022036961U CN213636731U CN 213636731 U CN213636731 U CN 213636731U CN 202022036961 U CN202022036961 U CN 202022036961U CN 213636731 U CN213636731 U CN 213636731U
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Abstract
The utility model relates to an internal environment detection control system of an electrical cabinet, which is arranged on the electrical cabinet in an overhead or side or backpack manner and is provided with an electrical control box, a condenser, a condensing fan, an evaporator, an evaporating fan and a compressor; the evaporator, the compressor and the condenser form a loop; the condensing fan is arranged corresponding to the condenser; the evaporation fan is arranged corresponding to the evaporator; a central processing unit is arranged in the electric control box; the central processing unit controls the operation of the condenser, the condensing fan, the evaporator, the evaporating fan and the compressor; a gas-liquid separator is connected between the evaporator and the compressor; and a drying filter is connected between the condenser and the evaporator. The utility model discloses main operational mode includes refrigeration mode, dehumidification mode, standby mode, and system automated inspection inside and outside environmental parameter judges the operation logic in real time, automatic switch-over operational mode.
Description
Technical Field
The utility model belongs to the technical field of regulator cubicle equipment accessory is used, in particular to regulator cubicle internal environment detects control system.
Background
To electric power system high-low voltage power distribution cabinet and outdoor looped netowrk cabinet under different operational environment, different seasons and different loads, face following problem:
(1) the heat dissipation requirement is high under the conditions of high load and high environmental temperature, the temperature in the cabinet needs to be controlled, the insulation aging problem caused by overhigh temperature is prevented, and a fire disaster is avoided;
(2) metal parts in the power distribution cabinet are easy to corrode, age the insulation and the like under a high-humidity environment; meanwhile, the high-humidity environment also easily causes condensation inside and outside the power distribution cabinet, and threatens the safe operation of the power distribution cabinet;
(3) lack the continuous monitoring to the operating conditions in the cabinet, including the inside and outside temperature of cabinet, humidity and abnormal discharge phenomenon to and lack in time to deal with and regulate and control unusual operating conditions.
The current market lacks the product of carrying out environmental control to the electric power system switch board, to above problem, needs to develop an environmental control system that lasts detection and control to electric power system high-low voltage power distribution cabinet internal environment urgently.
Disclosure of Invention
The utility model aims at overcoming the defect that prior art exists, providing a regulator cubicle internal environment detects control system that continuously detects and control the high-low voltage distribution cabinet internal environment of electric power system.
Realize the utility model discloses the technical scheme of purpose is: an internal environment detection control system of an electrical cabinet is arranged on the electrical cabinet in a top-mounted or side-mounted or back-pack manner, and is provided with an electrical control box, a condenser, a condensing fan, an evaporator, an evaporating fan and a compressor; the evaporator, the compressor and the condenser form a loop; the condensing fan is arranged corresponding to the condenser; the evaporation fan is arranged corresponding to the evaporator; a central processing unit is arranged in the electric control box; the central processing unit controls the operation of the condenser, the condensing fan, the evaporator, the evaporating fan and the compressor.
In the technical scheme, a gas-liquid separator is connected between the evaporator and the compressor.
In the technical scheme, a drying filter is connected between the condenser and the evaporator.
In the technical scheme, a throttling device is connected between the drying filter and the evaporator.
According to the technical scheme, an evaporation temperature sensor is connected between the evaporation fan and the evaporator.
According to the technical scheme, the central processing unit is connected with the condensation temperature sensor arranged at the position of the condenser.
In the technical scheme, a low-voltage switch is connected between the condensation temperature sensor and the input end of the compressor; the output end of the compressor is connected with the central processing unit through a high-voltage switch and an exhaust temperature sensor which are arranged in parallel.
According to the technical scheme, the central processing unit is further connected with a first temperature sensor and a first humidity sensor which are arranged outside the cabinet, and a second temperature sensor, a second humidity sensor and an ozone concentration sensor which are arranged in the cabinet.
In the technical scheme, an electric heater is correspondingly arranged at the outlet position of the evaporation fan; the electric heater is connected with the central processing unit.
After the technical scheme is adopted, the utility model discloses following positive effect has:
(1) the utility model discloses have the protection of compressor high-low pressure, prevent that compressor suction pressure from crossing low or the exhaust pressure is too high, ensure the operation of compressor safe and reliable, exhaust temperature sensor's setting realizes the too high protection of exhaust temperature, prevents that compressor exhaust temperature is too high, causes the compressor to damage.
(2) When the system detects that the internal temperature of the electric cabinet is higher than the target temperature in the cabinet, the refrigeration mode is started in time to reduce the temperature in the cabinet; under the condition of additionally installing electric heating, the near constant temperature control inside the power distribution cabinet can be realized.
(3) When the utility model detects that the risk of condensation inside the power distribution cabinet is large, the dehumidification mode is started in time to eliminate the risk of condensation inside the power distribution cabinet; comparing the internal environment and the external environment of the cabinet with the set temperature, determining the target temperature in the cabinet, and eliminating the risk of condensation outside the electrical cabinet; when the requirement on the internal humidity of the power distribution cabinet is strict, the forced dehumidification is started in time according to the set control humidity, and the internal humidity is maintained in a proper range;
(4) the utility model discloses install electrical heating additional, can realize nearly constant temperature dehumidification, further reduce the undulant level of environmental parameter in the cabinet.
(5) The utility model discloses detect ozone concentration in the cabinet, judge whether abnormal discharge takes place to in time provide alarm information.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which
Fig. 1 is a schematic diagram of the system of the present invention.
Detailed Description
(example 1)
As shown in fig. 1, the utility model can be installed on an electric cabinet in an overhead or side-mounted or backpack manner, and is provided with an electric control box, a condenser 1, a condensing fan 2, an evaporator 3, an evaporating fan 4 and a compressor 5; the evaporator 3, the compressor 5 and the condenser 1 form a circuit; the condensing fan 2 is arranged corresponding to the condenser 1; the evaporation fan 4 is arranged corresponding to the evaporator 3; a central processing unit 6 is arranged in the electric control box; the central processing unit 6 controls the operation of the condenser 1, the condensing fan 2, the evaporator 3, the evaporating fan 4 and the compressor 5.
A gas-liquid separator 8 is connected between the evaporator 3 and the compressor 5; a drying filter 9 is connected between the condenser 1 and the evaporator 3; a throttling device 10 is connected between the drying filter and the evaporator 3; an evaporation temperature sensor 11 is connected between the evaporation fan 4 and the evaporator 3; the cpu 6 is connected to a condensing temperature sensor 12 provided at the position of the condenser 1.
A low-voltage switch 13 is connected between the condensation temperature sensor 12 and the input end of the compressor 5; the output end of the compressor 5 is connected with the central processing unit 6 through a high-voltage switch 14 and an exhaust temperature sensor 15 which are arranged in parallel; high-low pressure protection of the compressor 5: the air suction pressure of the compressor 5 is prevented from being too low or the exhaust pressure of the compressor 5 is prevented from being too high, the safe and reliable operation of the compressor 5 is ensured, the exhaust temperature sensor 15 is arranged to realize the protection of too high exhaust temperature, and the damage of the compressor 5 caused by too high exhaust temperature of the compressor 5 is prevented.
The central processor 6 is also connected with a first temperature sensor 16 and a first humidity sensor 17 which are arranged outside the cabinet, and a second temperature sensor 18, a second humidity sensor 19 and an ozone concentration sensor 20 which are arranged inside the cabinet.
(example 2)
This example is substantially the same as example 1, and is distinguished by: an electric heater is correspondingly arranged at the outlet of the evaporation fan 4; the electric heater is connected to the central processor 6.
The utility model discloses a theory of operation does:
setting reference parameters, and starting a refrigeration mode in time to reduce the temperature in the cabinet when the system detects that the temperature in the electric cabinet is higher than the target temperature in the cabinet; under the condition of additionally installing electric heating, the near constant temperature control inside the power distribution cabinet can be realized. When the fact that the condensation risk in the power distribution cabinet is large is detected, the dehumidification mode is started in time, and the internal condensation risk is eliminated; comparing the internal environment and the external environment of the cabinet with the set temperature, determining the target temperature in the cabinet, and eliminating the risk of condensation outside the electrical cabinet; when the requirement on the internal humidity of the power distribution cabinet is strict, the forced dehumidification is started in time according to the set control humidity, and the internal humidity is maintained in a proper range; if the electric heating is additionally arranged, the dehumidification at a nearly constant temperature can be realized, and the fluctuation level of the environmental parameters in the cabinet is further reduced. The ozone concentration in the detection cabinet judges whether the abnormal discharge phenomenon occurs or not and provides alarm information in time.
The utility model discloses a RS-485 interface communicates with control center, in time acquires unit running state and switch board inside and outside environmental parameter.
Therefore, the utility model discloses main mode of operation includes refrigeration mode, dehumidification mode, standby mode, and system automated inspection inside and outside environmental parameter judges the operation logic in real time, automatic switch-over mode of operation.
In the standby mode, the inner fan performs corresponding start-stop operation according to the temperature and humidity monitoring data and the operation mode obtained by judgment; if the cabinet is in the standby mode for a long time, the internal fan is started every fixed time through the timer, and the accurate monitoring of the environment in the cabinet is guaranteed.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides an inside environment detection control system of regulator cubicle, overhead or side-set or knapsack formula are installed on the regulator cubicle which characterized in that: the device is provided with an electric control box, a condenser, a condensing fan, an evaporator, an evaporating fan and a compressor; the evaporator, the compressor and the condenser form a loop; the condensing fan is arranged corresponding to the condenser; the evaporation fan is arranged corresponding to the evaporator; a central processing unit is arranged in the electric control box; the central processing unit controls the operation of the condenser, the condensing fan, the evaporator, the evaporating fan and the compressor; a gas-liquid separator is connected between the evaporator and the compressor; and a drying filter is connected between the condenser and the evaporator.
2. The electrical cabinet internal environment detection control system according to claim 1, wherein: a low-voltage switch is connected between the input end of the compressor and the condensation temperature sensor; the output end of the compressor is connected with the central processing unit through a high-voltage switch and an exhaust temperature sensor which are arranged in parallel.
3. The electrical cabinet internal environment detection control system according to claim 2, wherein: and a throttling device is connected between the drying filter and the evaporator.
4. The electrical cabinet internal environment detection control system according to any one of claims 1 to 3, wherein: an evaporation temperature sensor is connected between the evaporation fan and the evaporator.
5. The electrical cabinet internal environment detection control system according to any one of claims 1 to 3, wherein: the central processing unit is connected with a condensation temperature sensor arranged at the position of the condenser.
6. The electrical cabinet internal environment detection control system according to any one of claims 1 to 3, wherein: an electric heater is correspondingly arranged at the outlet of the evaporation fan; the electric heater is connected with the central processing unit.
7. The electrical cabinet internal environment detection control system according to claim 1, wherein: the central processing unit is also connected with a first temperature sensor and a first humidity sensor which are arranged outside the cabinet, and a second temperature sensor, a second humidity sensor and an ozone concentration sensor which are arranged in the cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022036961.1U CN213636731U (en) | 2020-09-15 | 2020-09-15 | Internal environment detection control system for electrical cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022036961.1U CN213636731U (en) | 2020-09-15 | 2020-09-15 | Internal environment detection control system for electrical cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213636731U true CN213636731U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022036961.1U Active CN213636731U (en) | 2020-09-15 | 2020-09-15 | Internal environment detection control system for electrical cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213636731U (en) |
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2020
- 2020-09-15 CN CN202022036961.1U patent/CN213636731U/en active Active
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