CN211656771U - Regulator cubicle cooling system - Google Patents

Abstract

The utility model discloses a regulator cubicle cooling system, including electric cabinet and compressed air refrigerator, the one end of compressed air refrigerator's air conditioning exit linkage cold air duct, the other end of cold air duct is sealed, inside the cold air duct stretched into electric cabinet, electric cabinet inside is fixed with the installing support, the cold air duct penetrates in the installing support, the part that lies in the installing support on the cold air duct is equipped with cold gas pocket, be equipped with exhaust passage on the installing support, be equipped with the condensing fin among the exhaust passage, air conditioning in the installing support flows the installing support through exhaust passage, the installing support is connected with the drainage device who communicates with the electric cabinet outside, with the comdenstion water on the discharging condensing fin. In the electrical cabinet, the condensation fin can be preferred the comdenstion water and through drainage device discharge electrical cabinet, and the steam content in the air in the electrical cabinet can reduce, and the probability of other components contact the condensation behind the air conditioning reduces in the electrical cabinet for the part in the electrical cabinet can dispel the heat safely under the high humidity environment.

Description

Regulator cubicle cooling system

Technical Field

The utility model relates to an electrical equipment technical field, in particular to regulator cubicle cooling system.

Background

In the field of construction machinery, the reliability of electrical systems is affected by a number of factors. Among them, heat is an important factor affecting the lifetime of components and system stability, and the heat dissipation system of the engineering equipment needs to overcome many difficulties due to the special environment (such as high temperature, humidity, and dust) of the equipment.

In a patent document entitled "electric cabinet thermostat", application number cn201620492373.x, a closed-loop temperature control system using a compressed air refrigerator, a temperature controller, a temperature sensor and an electromagnetic valve is disclosed, which can realize thermostatic control in an electric cabinet.

However, the thermostat is only suitable for controlling the temperature of the electric cabinet in a general industrial environment, and when the thermostat is applied to a high-humidity environment, hot and humid air in any position in the cabinet meets the cold air action of suddenly dropping 40 ℃, and condensation can be generated, so that circuit faults are caused.

Therefore, how to provide a safe heat dissipation under high humidity environment is a technical problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an regulator cubicle cooling system can dispel the heat safely under the high humidity environment.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a regulator cubicle cooling system, includes electric cabinet and compressed air refrigerator, the one end of the air conditioning exit linkage cold air duct of compressed air refrigerator, the other end of cold air duct is sealed, the cold air duct stretches into inside the electric cabinet, inside being fixed with the installing support of electric cabinet, the cold air duct penetrates in the installing support, the last position of cold air duct the part in the installing support is equipped with cold gas pocket, be equipped with exhaust passage on the installing support, be equipped with the condensation fin among the exhaust passage, the air conditioning warp in the installing support exhaust passage flows the installing support, the installing support be connected with the drainage device of electric cabinet outside intercommunication, in order to discharge the comdenstion water on the condensation fin.

Preferably, the drain is a one-way drain, and a drain direction thereof is defined as a direction outward from inside the electrical cabinet.

Preferably, the drainage device is a duckbilled check valve made of silica gel, and the check valve is opened when the gas pressure in the electric cabinet is greater than the set pressure.

Preferably, the bottom of the mounting bracket is a water collecting box, and the water collecting box is connected with the drainage device.

Preferably, the outside of the cold air pipe is wrapped with heat insulation cotton.

Preferably, the inner surface of the electric cabinet is covered with heat insulation cotton.

Preferably, the mounting bracket is fixed in on the inside bottom surface of electric cabinet, the mounting bracket includes support main part and top cap, the setting is run through from top to bottom in the support main part, at least two the condensation fin distribute gradually along circumference on the outer peripheral face of support main part, the top cap lid fits in the support main part, the first half of condensation fin accept in inside the top cap, the inner peripheral surface of top cap with constitute between the outer peripheral face of support main part exhaust passage.

Preferably, the compressed air refrigerator is fixed in above the electric cabinet and the cold air outlet extends into in the electric cabinet, the cold air duct extends downwards to be close to extend into after the inside bottom surface of electric cabinet in the installing support, and the part that extends downwards on the cold air duct is fixed in the inside wall of electric cabinet.

Preferably, a temperature sensor is arranged in the electric cabinet, the temperature sensor is electrically connected to a temperature controller, a compressed air source is connected to a gas inlet of the compressed air refrigerator through an air inlet electromagnetic valve, and the air inlet electromagnetic valve is electrically connected to the temperature controller; and the temperature controller is used for controlling the on-off of the air inlet electromagnetic valve according to the detection result of the temperature sensor.

Preferably, the compressed air source is connected to the air inlet solenoid valve through an oil filter and a water filter.

The utility model provides a regulator cubicle cooling system, including electric cabinet and compressed air refrigerator, the one end of compressed air refrigerator's air conditioning exit linkage cold air duct, the other end of cold air duct is sealed, inside the cold air duct stretched into electric cabinet, the inside installing support that is fixed with of electric cabinet, the cold air duct penetrates in the installing support, the part that lies in the installing support on the cold air duct is equipped with cold gas pocket, be equipped with exhaust passage on the installing support, be equipped with the condensation fin among the exhaust passage, air conditioning in the installing support flows the installing support through exhaust passage, the installing support is connected with the drainage device who communicates with the electric cabinet outside, with the comdenstion water on the condensation fin of discharging.

After the compressed air refrigerator is used for refrigerating, cold air enters the cold air pipe, is discharged into the inner space of the mounting bracket through the cold air hole, is discharged out of the mounting bracket through the exhaust channel, and enters the space, positioned outside the mounting bracket, in the electric cabinet for cooling. In the electrical cabinet, the cooling fin contacts earlier behind the air conditioning temperature reduction and is less than other positions in the cabinet, the cooling fin can be preferred the comdenstion water and through drainage device discharge electrical cabinet appearing, thereby adjust the humidity environment of electrical cabinet through the cooling fin, the steam content in the air can reduce gradually in the electrical cabinet, in addition, after air conditioning flows out the installing support, because humidity reduces, the probability of condensation reduces behind the other electrical components contact air conditioning in the electrical cabinet, thereby make the part in the electrical cabinet can be in the high humidity environment safe heat dissipation down.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a front view of an electrical cabinet heat dissipation system in an embodiment of the present invention;

FIG. 2 is a schematic front view of the embodiment of the present invention showing the relationship between the position of the cold air pipe and the mounting bracket, wherein the dotted line part inside the top cover is a perspective part;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a side view of the mounting bracket with the top cover removed in an embodiment of the invention;

fig. 5 is a front view of the check valve in the closed state according to the embodiment of the present invention;

fig. 6 is a side view of the check valve in a closed state according to the embodiment of the present invention;

fig. 7 is a front view of the check valve in an open state according to the embodiment of the present invention;

fig. 8 is a side view of the check valve in an open state according to an embodiment of the present invention.

Reference numerals:

1-electric cabinet, 2-temperature controller, 3-oil filter, 4-water filter, 5-air inlet solenoid valve, 6-compressed air refrigerator, 7-cold air pipe, 8-mounting bracket, 81-top cover, 82-bracket main body, 83-water collecting box, 84-clamping groove, 85-cold air pipe mounting hole, 86-condensation fin, 87-exhaust channel, 9-one-way valve, 10-silencer, 11-steel welding base and 12-compressed air source.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide an electrical cabinet cooling system, can dispel the heat safely under the high humidity environment.

It will be understood that when an element is referred to as being "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The utility model provides an in one embodiment of regulator cubicle cooling system, including electrical cabinet 1 and compressed air refrigerator 6. The electrical cabinet 1 is used for placing electrical equipment. The compressed air refrigerator 6 is used for refrigerating, and specifically, as shown in fig. 1, after the compressed air enters the compressed air refrigerator 6, a path of cold air flow with a cooling amplitude of about 40 ℃ is generated by using a vortex tube refrigeration principle, and the cold air flow flows out from a cold air outlet of the compressed air refrigerator 6. Of course, in other embodiments, the magnitude of the compressed air chiller 6 pull down is not limited to 40 ℃.

As shown in fig. 1, the cold air outlet of the compressed air refrigerator 6 is connected to one end of the cold air duct 7, and the other end of the cold air duct 7 is closed. The cold air pipe 7 extends into the interior of the electrical cabinet 1. The electric cabinet 1 is internally fixed with a mounting bracket 8, a cold air pipe 7 penetrates into the mounting bracket 8, a part of the cold air pipe 7 positioned in the mounting bracket 8 is provided with cold air holes, and cold air discharged by the compressed air refrigerator 6 is discharged out of the cold air pipe 7 through the cold air holes on the cold air pipe 7.

The mounting bracket 8 is provided with an exhaust passage 87, and the exhaust passage 87 is provided with a condensing fin 86 therein. The cool air in the mounting bracket 8 flows out of the mounting bracket 8 through the air discharge passage 87 and further flows into the space outside the mounting bracket 8 in the electrical cabinet 1. The mounting bracket 8 is connected with a drain device communicating with the outside of the electrical cabinet 1 to drain the condensed water on the condensing fins 86.

In this embodiment, after the compressed air refrigerator 6 performs refrigeration, the cold air enters the cold air pipe 7, is discharged into the inner space of the mounting bracket 8 through the cold air hole, is discharged out of the mounting bracket 8 through the exhaust passage 87, and enters the space outside the mounting bracket 8 in the electrical cabinet 1 for cooling. In electric cabinet 1, cooling fin 86 contacts earlier behind the air conditioning temperature reduction and is less than other positions in the cabinet, cooling fin 86 can be preferred to appear the comdenstion water and through drainage arrangement discharge electric cabinet 1, thereby adjust the humidity environment of electric cabinet 1 through cooling fin 86, the steam content in the air can reduce gradually in electric cabinet 1, in addition, after cooling air outflow installing support 8, because humidity reduces, the probability of condensation behind the other electrical components contact air conditioning in electric cabinet 1 reduces, thereby make the part in electric cabinet 1 can dispel the heat safely under the high humidity environment.

Further, the drainage device is a one-way drainage device, and the drainage direction of the drainage device is limited to the direction from the inside to the outside of the electrical cabinet 1, so that the drainage reliability can be ensured, and the backflow of the drained water can be avoided.

Preferably, as shown in fig. 5 to 8, the drainage device is a duckbill check valve 9 made of silicone, and the check valve 9 is opened when the pressure in the electrical cabinet 1 is greater than a set pressure, for example, the set pressure is a small positive pressure value.

At the in-process of the normal work of cooling system, be the pressure-fired in the electrical cabinet 1 for the silica gel mouth of check valve 9 is opened, is used for discharge comdenstion water and balanced cabinet internal pressure, and outside humid air can't get into electrical cabinet 1 inside, so the steam content in the air can reduce to a lower level gradually in the electrical cabinet 1, and the probability of taking place the condensation can reduce greatly. When the electric cabinet is shut down, the silica gel port of the one-way valve 9 is automatically closed, so that the outside damp and hot air is prevented from entering, the basically dry gas environment in the electric cabinet 1 is maintained, the electric fault caused by the condensation on the surface of the component when the heat dissipation system is restarted is avoided, and meanwhile, the IP grade of the protection of the electric cabinet 1 can be ensured. Specifically, electrical cabinet 1 achieves a protection rating of IP55 or above.

This check valve 9 adopts the silica gel material, and its elasticity, toughness are better than general rubber, and non-deformable realizes above-mentioned drainage device's service function more. Simultaneously, this check valve 9 can utilize the automatic control that opens and shuts that realizes of gas pressure in the cabinet, but the comdenstion water of discharging when opening helps maintaining the pressure-fired state in the cabinet, can prevent outside humid air to get into when closing, guarantees the continuation drying of air in electrical cabinet 1.

Of course, the drain is not limited to being provided as the check valve 9 in the present embodiment. In other embodiments, the drain may also be a solenoid valve.

Further, the bottom of the mounting bracket 8 is a water collecting box 83, and the water collecting box 83 is connected with a drainage device. As shown in fig. 1 and 5, the top of the check valve 9 is fixed on the steel welding base 11 at the bottom of the electrical cabinet 1, the mounting bracket 8 is fixed on the bottom surface inside the electrical cabinet 1, and the check valve 9 is matched with the bottom opening of the water collecting box 83 and the bottom opening of the electrical cabinet 1, so as to achieve the purpose of timely discharging condensed water in the water collecting box 83. The water on the condensing fins 86 is firstly concentrated and falls into the water collecting box 83, and then is concentrated and discharged outwards by the water collecting box 83, so that the problem that the water on the condensing fins 86 directly falls on the bottom surface inside the electric cabinet 1 to influence the operation safety can be effectively avoided. Of course, in other embodiments, the mounting bracket 8 may be fixed at other positions of the electrical cabinet 1, for example, on the inner side wall of the electrical cabinet 1, and at this time, the check valve 9 may still be connected to the bottom of the electrical cabinet 1, and the water collection box 83 is connected to the check valve 9 through a water pipe.

Further, the inner surface of the electrical cabinet 1 is covered with heat insulation cotton, wherein, if the inner wall of the electrical cabinet 1 is provided with devices, the corresponding cutting holes are avoided. The thermal-insulated cotton layer of 1 internal surface laying of electrical cabinet can realize blockking outside heat and get into the cabinet in high temperature environment, improves the radiating efficiency, and the temperature of 1 surface of electrical cabinet can not appear probably causing the low temperature of condensation because of the heat-conduction phenomenon of cabinet steel sheet, has consequently avoided the condensation phenomenon of 1 surface of electrical cabinet for this cooling system can be applicable to the heat dissipation under the high temperature environment. Preferably, the heat insulation cotton covered on the inner surface of the electric cabinet 1 is an adhesive-backed rubber-plastic heat insulation cotton plate, the thickness is 5-10mm, the heat conductivity coefficient can reach 0.035W/mK, the flame retardant grade B1 is, the water absorption rate is not more than 10%, and the applicable temperature is-40 ℃ to +110 ℃. Compared with inorganic heat insulation materials, the heat insulation cotton has better flexibility and is more suitable for the application condition needing field cutting construction.

Further, the outside of the air conditioning pipe 7 is coated with heat insulation cotton, specifically, a gum rubber-plastic heat insulation cotton plate or a common heat insulation felt type heat insulation material, so as to avoid the surface condensation of the air conditioning pipe 7.

Further, as shown in fig. 2 to 4, the mounting bracket 8 includes a bracket main body 82 and a top cover 81, the bracket main body 82 is disposed to penetrate from top to bottom, at least two condensation fins 86 are sequentially distributed on the outer circumferential surface of the bracket main body 82 along the circumferential direction, and a diversion trench is formed between the adjacent condensation fins 86. The top cover 81 covers the holder main body 82, the upper half portion of the condensation fin 86 is housed inside the top cover 81, and an exhaust passage 87 is formed between the inner peripheral surface of the top cover 81 and the outer peripheral surface of the holder main body 82.

As shown in fig. 2 to 4, the bracket body 82 is a hollow rectangular cylinder, the top and bottom surfaces are not closed, and the condensing fins 86 are uniformly distributed around the outer wall. The top cover 81 is connected with the bracket main body 82 through a clamping groove 84, and the bottom of the bracket main body 82 is fixedly connected with the water collecting box 83 through a bolt. Circular cold air pipe mounting holes 85 are formed in two sides of the bracket main body 82, the cold air pipe 7 is fixed through the cold air pipe mounting holes 85 and extends into the bracket main body 82, and the inner space of the bracket main body 82 is the inner space of the mounting bracket 8. The water collection box 83 is fixed to the bottom surface of the inside of the electrical cabinet 1 by bolts.

Preferably, the bracket body 82, the top cover 81 and the water collecting box 83 are made of aluminum alloy, and the aluminum alloy has the advantages of light weight, large heat conductivity coefficient, easiness in processing and the like.

When the heat dissipation system works, the cold air pipe 7 in the mounting bracket 8 sprays cold air through the cold air holes, the cold air passes through the top gap between the top cover 81 and the bracket main body 82 and then is discharged downwards through the surrounding gaps, and the flow guide grooves formed between the condensing fins 86 have a flow guide effect. After the air conditioning is diffused and dredged through the exhaust channel 87 and the inner diversion trenches thereof, the airflow direction and the airflow pressure are changed, the air conditioning which is higher than the normal pressure is prevented from directly acting on the components in the box, thus the purpose of integral cooling is achieved, and the circuit fault caused by the direct action of the air conditioning on the components is also avoided, so that the mounting bracket 8 has multiple functions of mounting the air conditioning pipe 7, collecting condensed water, dispersing the air conditioning flow and solving the surface condensation of the components in the box.

Further, referring to fig. 1, the compressed air refrigerator 6 is fixed above the electrical cabinet 1, and the cold air outlet extends into the electrical cabinet 1, the cold air duct 7 extends downward to be close to the bottom surface inside the electrical cabinet 1 and then extends into the mounting bracket 8, and the portion of the cold air duct 7 extending downward is fixed on the inner side wall of the electrical cabinet 1, so as to prevent the cold air duct 7 from shaking freely in the electrical cabinet 1.

Further, a temperature sensor is arranged in the electric cabinet 1 and electrically connected to the temperature controller 2, a compressed air source 12 is connected to a gas inlet of the compressed air refrigerator 6 through an air inlet electromagnetic valve 5, and the air inlet electromagnetic valve 5 is electrically connected to the temperature controller 2. The temperature controller 2 is used for controlling the on-off of the air inlet electromagnetic valve 5 according to the detection result of the temperature sensor, and specifically, the temperature controller 2 controls the on-off of the electromagnetic valve according to whether the temperature detected by the temperature sensor exceeds a set value or not so as to achieve closed-loop control of the temperature.

Further, a compressed air source 12 is connected to the intake solenoid valve 5 via an oil filter 3 and a water filter 4. Further, a muffler 10 is provided on the cold air duct 7.

Specifically, as shown in fig. 1, the heat dissipation system has certain requirements on the pressure, flow rate, temperature and water and oil content of the compressed air, and in order to ensure the cooling effect and the service life of the compressed air refrigerator 6, the compressed air is required to be dry and oil-free, and a water filter 4 and an oil filter 3 are connected in series at the front end of an air inlet to meet the requirements.

In addition, the pressure of the compressed air generally requires 70-150psi (4.8-10.3bar), the pressure value affects the cooling amplitude of the compressed air refrigerator 6, the pressure and the flow rate affect the actual refrigerating capacity, and table 1 lists the corresponding relationship between the pressure, the flow rate and the refrigerating capacity of the compressed air accessed by a certain brand of compressed air refrigerator 6.

TABLE 1

The embodiment provides a closed loop cooling system based on compressed air refrigeration principle, can be applicable to in the high temperature and high humidity environment better, and detailed work flow is:

compressed air is connected to an air inlet interface of a compressed air refrigerator 6 through an oil filter 3, a water filter 4 and an air inlet electromagnetic valve 5, high-pressure air enters a vortex chamber at an inlet along the tangential direction, high-speed vortex air flow similar to tornado is formed in the vortex chamber, cold and hot air flows are generated through the kinetic energy exchange principle, hot air flows are discharged into the air, cold air flows are connected into a cold air pipe 7, and the temperature of the cold air flows is reduced by about 40 ℃ compared with that of the original compressed air. After entering the interior of the electric cabinet 1, the cold air pipes 7 are fixed at multiple points on the side walls and then led to the bottom surface of the cabinet, and the positions and the number of the mounting brackets 8 are determined according to the distribution of heat sources in the cabinet and the specific situation of the available space of the bottom surface. The cold air pipe 7 passes through the mounting bracket 8, and a hole is formed in the cold air pipe 7 at a suitable position at the inner part of the mounting bracket 8, so that cold air is sprayed out of the small hole. The sprayed cold air first lowers the temperature of the mounting bracket 8 and is dispersed into the cabinet under the action of the exhaust channel 87 and the diversion trench around the mounting bracket 8. This installing support 8 is the aluminum alloy material, and its condensing fin 86 all around forms smooth cold surface under the cold air effect, preferentially produces the comdenstion water and makes the comdenstion water along its vertically smooth surface landing to bottom water-collecting box 83, and the electrical cabinet 1 of rethread check valve 9 discharge. In addition, the temperature controller 2 installed at the other end of the electric cabinet 1 can compare the measured temperature value in the electric cabinet 1 with a set temperature value (the set value should be greater than the field dew point temperature to avoid the condensation caused by the over-low integral temperature in the cabinet), if the temperature value exceeds the set temperature value, the air inlet electromagnetic valve 5 is controlled to be opened, the heat dissipation system works, otherwise, the air inlet electromagnetic valve 5 is controlled to be closed, the heat dissipation system stops working, and therefore the use amount of compressed air is saved and the temperature in the cabinet is guaranteed to be at a reasonable level.

The following is a theoretical analytical procedure of an application example:

an existing device is provided with an electrical cabinet 1 with the size of 1000 multiplied by 600 multiplied by 300 (unit mm), the electrical cabinet 1 is arranged below a vehicle body covering part, the internal and external spaces of the electrical cabinet 1 are limited, the field environment temperature of the device is 55 ℃, the relative humidity is 95% (30 ℃), and the heat of components in the cabinet is about 200W, and the solar radiation is not considered.

If no additional heat dissipation is considered, only the housing dissipates heat, and the formula P ═ K · a · Δ T yields Δ T ═ 17 ℃, (K ═ 5.5, and a ═ 2.16), i.e. the cabinet internal temperature is 72 ℃, which exceeds the temperature range in which most devices operate stably, and the actual solar radiation will bring more heat, and the final temperature may be higher. If the fan is adopted for heat dissipation, moist air and dust can be inevitably introduced into the electrical cabinet 1, and circuit failure is easily caused after a long time. The solution of industrial air conditioners is not the best choice due to space limitations and too harsh environment.

The heat dissipation system in the embodiment is applied: the air compressor of the existing equipment can provide one path of maximum pressure of 8bar and flow of 1m³And/min, selecting the compressed air refrigerator 6 with the refrigerating capacity of 440W in the table I according to the field condition of the compressed air with the water and oil contents meeting the condition after filtering. The dew point temperature was estimated to be about 29.1 deg.C based on the local air relative humidity of 95% (30 deg.C). The starting temperature is set to be 38 ℃, when the temperature in the box is higher than 38 ℃, the heat dissipation system starts to work, and the temperature of the outlet gas of the equipment with the air compressor is about 65 ℃. Taking into account the cooling amplitude of the compressed air refrigerator 6 divided by the compressed air refrigeratorThe temperature of the compressed air refrigerator 6 is estimated to be 35 ℃ (generally, the temperature can be reduced by 28-40 ℃), namely, the temperature of cold air discharged by the cold air pipe 7 is 30 ℃, condensation will occur on the mounting bracket 8 of the cold air pipe 7 in the electric cabinet 1, and the condensation will occur if the temperature of the cold air discharged by the cold air port is actually less than 29.1 ℃. If the field environment humidity is too high and the condensation phenomenon is serious, the temperature of the outlet gas of the cooler can be properly adjusted by adjusting the pressure of the inlet gas, and the cold energy is properly sacrificed to offset the negative effect caused by the high humidity.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It is right above the utility model provides an regulator cubicle cooling system has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. The electrical cabinet heat dissipation system is characterized by comprising an electrical cabinet (1) and a compressed air refrigerator (6), wherein a cold air outlet of the compressed air refrigerator (6) is connected with one end of a cold air pipe (7), the other end of the cold air pipe (7) is sealed, the cold air pipe (7) extends into the electrical cabinet (1), a mounting bracket (8) is fixed inside the electrical cabinet (1), the cold air pipe (7) penetrates into the mounting bracket (8), a cold air hole is formed in the part, located in the mounting bracket (8), of the cold air pipe (7), an exhaust channel (87) is formed in the mounting bracket (8), a condensing fin (86) is arranged in the exhaust channel (87), cold air in the mounting bracket (8) flows out of the mounting bracket (8) through the exhaust channel (87), and the mounting bracket (8) is connected with a drainage device communicated with the outer side of the electrical cabinet (1), to drain condensed water on the condensing fins (86).

2. The electrical cabinet heat dissipation system according to claim 1, wherein the drain is a one-way drain, and a drain direction thereof is defined as a direction from inside to outside of the electrical cabinet (1).

3. The regulator cubicle heat dissipation system according to claim 2, wherein the drain is a silica gel duckbill check valve (9), the check valve (9) opens when the gas pressure in the regulator cubicle (1) is greater than a set pressure.

4. The regulator cubicle heat dissipation system of claim 3, wherein the bottom of the mounting bracket (8) is a water collection box (83), the water collection box (83) being connected to the drain.

5. The electrical cabinet heat dissipation system according to any one of claims 1 to 4, wherein the outside of the cold air duct (7) is covered with heat insulation cotton.

6. The electrical cabinet cooling system according to any one of claims 1 to 4, wherein the inner surface of the electrical cabinet (1) is covered with thermal insulation cotton.

7. The electrical cabinet cooling system according to any one of claims 1 to 4, wherein the mounting bracket (8) is fixed to an inner bottom surface of the electrical cabinet (1), the mounting bracket (8) includes a bracket main body (82) and a top cover (81), the bracket main body (82) is vertically arranged in a penetrating manner, at least two condensation fins (86) are sequentially distributed on an outer circumferential surface of the bracket main body (82) along a circumferential direction, the top cover (81) covers the bracket main body (82), upper half portions of the condensation fins (86) are accommodated in the top cover (81), and the exhaust passage (87) is formed between the inner circumferential surface of the top cover (81) and the outer circumferential surface of the bracket main body (82).

8. The electrical cabinet heat dissipation system according to claim 7, wherein the compressed air refrigerator (6) is fixed above the electrical cabinet (1) and the cool air outlet extends into the electrical cabinet (1), the cool air duct (7) extends downward to be close to the inner bottom surface of the electrical cabinet (1) and then extends into the mounting bracket (8), and a portion of the cool air duct (7) extending downward is fixed to the inner side wall of the electrical cabinet (1).

9. The electrical cabinet cooling system according to any one of claims 1 to 4, wherein a temperature sensor is arranged in the electrical cabinet (1), the temperature sensor is electrically connected to a thermostat (2), a compressed air source is connected to a gas inlet of the compressed air refrigerator (6) through an air inlet solenoid valve (5), and the air inlet solenoid valve (5) is electrically connected to the thermostat (2); and the temperature controller (2) is used for controlling the on-off of the air inlet electromagnetic valve (5) according to the detection result of the temperature sensor.

10. The electrical cabinet cooling system according to claim 9, wherein the compressed air source is connected to the air inlet solenoid valve (5) via an oil filter (3) and a water filter (4).

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