CN217115198U

CN217115198U - Prevent condensation dehumidification switch board

Info

Publication number: CN217115198U
Application number: CN202220774540.5U
Authority: CN
Inventors: 王志强; 姜国强; 李圆
Original assignee: State Grid Corp of China SGCC; Bozhou Power Supply Co of State Grid Anhui Electric Power Co Ltd; Woyang Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Bozhou Power Supply Co of State Grid Anhui Electric Power Co Ltd; Woyang Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-08-02
Anticipated expiration: 2032-04-02

Abstract

The utility model provides an anti-condensation dehumidification power distribution cabinet, including the power distribution cabinet body and the dehumidification device that is located the internal portion of cabinet, the dehumidification device includes the box, the box is internal to be provided with the baffle, the baffle separates the internal portion of box into condensation chamber and heat dissipation chamber, still be provided with the semiconductor refrigeration piece on the baffle, the refrigeration face of semiconductor refrigeration piece is located the condensation chamber, the heat dissipation face of semiconductor refrigeration piece is located the heat dissipation chamber; the partition board is provided with a ventilation opening which enables the condensation cavity to be communicated with the heat dissipation cavity, and the ventilation opening is provided with a fan which is used for blowing condensed gas in the condensation cavity into the heat dissipation cavity. The utility model discloses, through the mode that heaies up after earlier condensation, when reducing the absolute moisture content volume of gas, improve gaseous moisture absorption volume, make get back to the internal gaseous humidity that can be better of cabinet again with the internal humidity of cabinet, the internal humidity of high efficiency's reduction cabinet.

Description

Prevent condensation dehumidification switch board

Technical Field

The utility model relates to a power equipment technical field, concretely relates to prevent condensation dehumidification switch board.

Background

The switch board is comparatively important equipment among the circuit system, receives damp weather or humid environment influence, gathers more moisture easily in the switch board, and serious meeting forms the condensation at cabinet internal wall even, and serious moisture causes switch board inner member to break down easily.

In order to remove moisture in the power distribution cabinet, the prior art generally adopts two modes of heating dehumidification and semiconductor refrigeration piece condensation dehumidification.

The heating dehumidification refers to increasing the temperature in the power distribution cabinet, increasing the moisture absorption amount of gas and improving the dryness of equipment in the box. The relative humidity in the box is reduced at this time, but the absolute moisture content of the gas cannot be reduced, under the condition that the absolute moisture content is not changed, if the moisture body is cooled (day and night temperature difference or heater withdrawal), the relative humidity in the cabinet rises and reaches saturation, the temperature continues to drop, condensation is generated and condensed on the surface of equipment, insulation is damaged, and phenomena of flashover, short circuit or breakdown occur.

The condensation dehumidification means that the semiconductor refrigeration piece is utilized to enable water vapor in gas to contact with a condensation surface of a semiconductor, the water vapor is condensed into liquid water, and then the liquid water is collected and discharged out of the box. However, this method cannot solve the problem of the condensation formed in the box body. Meanwhile, in an initial state, the semiconductor refrigerating sheet conducts low temperature into the power distribution cabinet, and formation of condensation inside the power distribution cabinet is accelerated.

Therefore, how to effectively solve the condensation problem in the electric cabinet is the technical problem that this application will solve.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a can high efficiency solve a condensation problem in the electric cabinet prevent condensation dehumidification switch board.

In order to achieve the above object, the technical solution of the present invention is that: the anti-condensation dehumidification power distribution cabinet comprises a power distribution cabinet body and a dehumidification device located inside the cabinet body, wherein the dehumidification device comprises a box body, a partition board is arranged inside the box body, the partition board divides the inside of the box body into a condensation cavity and a heat dissipation cavity, a semiconductor refrigeration piece is further arranged on the partition board, a refrigeration surface of the semiconductor refrigeration piece is located in the condensation cavity, and a heat dissipation surface of the semiconductor refrigeration piece is located in the heat dissipation cavity;

the partition board is provided with a ventilation opening which enables the condensation cavity to be communicated with the heat dissipation cavity, and the ventilation opening is provided with a fan which is used for blowing condensed gas in the condensation cavity into the heat dissipation cavity.

Further, be provided with the controller on the cabinet body, the inside of the cabinet body is provided with humidity transducer, fan and semiconductor refrigeration piece all are connected with the controller.

Further, the condensation chamber and the heat dissipation chamber are left and right distributed, the semiconductor refrigeration piece is located the upper portion of baffle, the lower part at the baffle is seted up to the vent, be provided with a plurality of radiating fin on the cooling surface of semiconductor refrigeration piece, be provided with a plurality of heat conduction fins on this refrigeration face.

Further, the gas in the cabinet body enters the condensation cavity from the top of the condensation cavity, the heat conduction fins are arranged on the refrigeration surface in an up-and-down inclined mode, the higher ends of the heat conduction fins are connected with the refrigeration surface, and a plurality of through holes are formed in each heat conduction fin.

Further, the edge of each heat conduction fin is hermetically connected with the wall of the condensation cavity.

Furthermore, the radiating fins are vertically arranged on the radiating surface, and one ends of the radiating fins, which are far away from the radiating surface, are hermetically connected with the cavity wall of the radiating cavity.

Furthermore, the bottom of the condensation cavity is set to be inclined, a drain pipe is arranged at the lower position of the bottom of the condensation cavity, and one end of the drain pipe penetrates out of the cabinet body.

Further, an inner lining plate is arranged in the cabinet body along each side wall of the cabinet body, a ventilation cavity is formed between the inner lining plate and the side wall of the cabinet body, a ventilation hole is formed in the position, far away from the condensation cavity, of the ventilation cavity, the ventilation cavity is communicated with the interior of the cabinet body through the ventilation hole, an air outlet is formed in the top of the heat dissipation cavity, and the air outlet is communicated with the ventilation cavity.

Further, the dehumidification device is located the top of the cabinet body, and the ventilation hole sets up the bottom at the cabinet body.

The beneficial effects of the utility model are embodied in:

the utility model discloses, through the mode that heaies up after earlier condensation, when reducing the absolute moisture content volume of gas, improve gaseous moisture absorption volume, make get back to the internal gaseous humidity that can be better of cabinet again with the internal humidity of cabinet, the internal humidity of high efficiency's reduction cabinet. Simultaneously, its temperature of follow dehydrating unit exhaust gas is higher than the gaseous temperature in the cabinet body, consequently can not accelerate the formation of the interior condensation of switch board.

Drawings

In the drawings:

fig. 1 is a schematic view of the overall structure of the condensation-prevention dehumidification power distribution cabinet (the cabinet door is omitted);

fig. 2 is a front view of the condensation-preventing and dehumidifying power distribution cabinet of the present invention;

fig. 3 is a half sectional view of a front view of a dehumidifying apparatus according to the present invention;

fig. 4 is a half sectional view of a left side view of the dehumidifying apparatus according to the present invention.

Description of reference numerals:

1-cabinet body, 11-humidity sensor, 12-inner lining plate, 13-ventilation cavity, 14-ventilation hole, 2-dehumidification device, 21-box body, 22-partition plate, 23-condensation cavity, 24-heat dissipation cavity, 25-ventilation hole, 26-air outlet, 27-water discharge pipe, 3-semiconductor refrigeration piece, 31-refrigeration surface, 32-heat dissipation surface, 33-heat dissipation fin, 34-heat conduction fin, 341-perforation and 4-fan.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples, and it is to be understood that the described examples are only a part of the examples of the present invention, and not all of the examples. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the utility model.

It should be noted that if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, "a plurality" means two or more. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the utility model.

See fig. 1-4.

The utility model provides a prevent condensation dehumidification switch board, include switch board cabinet body 1 and be located the internal portion of cabinet dehydrating unit 2, this dehydrating unit 2 includes box 21, this box 21 is inside to be provided with baffle 22, this baffle 22 divide into two cavitys in condensation chamber 23 and heat dissipation chamber 24 with the inside of box 21, still be provided with semiconductor refrigeration piece 3 on this baffle 22, the refrigeration face 31 of this semiconductor refrigeration piece 3 is located condensation chamber 23, the cooling surface 32 of semiconductor refrigeration piece 3 is located heat dissipation chamber 24, it has the vent 25 that makes condensation chamber 23 and heat dissipation chamber 24 communicate to open on this baffle 22, and be provided with fan 4 in vent 25, this fan 4 is used for insufflating heat dissipation chamber 24 with the air conditioning after the condensation in the condensation chamber 23, dispel the heat for the cooling surface 32 of semiconductor refrigeration piece 3.

In the concrete implementation, open fan 4 and semiconductor refrigeration piece 3, the switch board cabinet body 1 contains the gas of moisture content, get into and condense in the condensation chamber 23, later blow in heat dissipation chamber 24 through fan 4, dispel the heat for the cooling surface 32 of semiconductor refrigeration piece 3, because of the heat that the cooling surface 32 of semiconductor refrigeration piece 3 produced is multiple is greater than the heat that cooling surface 31 reduced usually, consequently, gaseous entering heat dissipation chamber 24 after the condensation back, in the time of for cooling surface 32, gaseous temperature can rise to the temperature that is higher than cabinet body 1 inside rapidly, increase gaseous moisture absorption, later, gaseous after rising temperature is discharged cabinet body 1 again in, form the confined circulation in cabinet body 1.

The utility model discloses, through the mode that heaies up after earlier condensation, when reducing the absolute moisture content volume of gas, improve gaseous moisture absorption volume, make get back to the humidity in the internal gas of cabinet 1 can be better and the internal 1 of cabinet again, high efficiency reduces the internal humidity of cabinet 1. Simultaneously, its temperature of follow dehydrating unit 2 combustion gas is higher than the gaseous temperature in the cabinet body 1, consequently can not accelerate the formation of condensation in the switch board, because of the improvement of temperature, the condensation that has formed can be fallen by the fine absorption of dry gas on the contrary.

In an embodiment, a controller (not shown) is disposed on the cabinet 1, a humidity sensor 11 is disposed inside the cabinet 1, and the humidity sensor 11, the fan 4 and the semiconductor chilling plate 3 are all connected to the controller.

In the specific implementation, a humidity parameter is set in the controller in advance, the humidity sensor 11 transmits real-time monitoring data to the controller, the controller processes the data transmitted by the humidity sensor 11 and compares the data with the preset humidity parameter, when the data exceed the preset humidity parameter, the controller controls the fan 4 and the semiconductor refrigerating sheet 3 to start to dehumidify until the data transmitted by the humidity sensor 11 are lower than the preset humidity parameter.

In one embodiment, the condensation chamber 23 and the cooling chamber 24 are distributed in left and right directions, the semiconductor chilling plate 3 is located on the upper portion of the partition plate 22, the ventilation opening 25 is formed on the lower portion of the partition plate 22, the cooling surface 32 of the semiconductor chilling plate 3 is provided with a plurality of cooling fins 33, and the cooling surface 31 is provided with a plurality of heat-conducting fins 34. Design like this, can make gas by quick cooling and intensification through radiating fin and heat conduction fin, improve drying efficiency.

In an embodiment, the air in the cabinet 1 enters the condensation chamber 23 from the top of the condensation chamber 23, the heat-conducting fins 34 are arranged on the refrigeration surface 31 in an up-down inclined manner, the higher ends of the heat-conducting fins 34 are connected with the refrigeration surface 31, and each heat-conducting fin 34 is provided with a plurality of through holes 341. The design is that the gas entering the condensation cavity from top to bottom can pass through the through holes to contact with the heat conducting fins and condense on the heat conducting fins, and the condensed water drops move to one side far away from the refrigeration surface along the inclination of the heat conducting fins and fall to the bottom of the condensation cavity from the through holes, so that the contact of excessive water and the refrigeration surface is avoided.

In one embodiment, the edges of each heat-conducting fin 34 are hermetically connected with the wall of the condensation chamber 23. By the design, the gas can better penetrate through the through holes to be in contact with the heat conducting fins, so that the gas is fully condensed.

In an embodiment, the heat dissipation fins 33 are vertically arranged on the heat dissipation surface 32, and one end of the heat dissipation fin 33 away from the heat dissipation surface 32 is hermetically connected with the cavity wall of the heat dissipation cavity 24.

In an embodiment, an inner lining plate 12 is disposed along each sidewall of the cabinet 1 inside the cabinet 1, a ventilation cavity 13 is formed between the inner lining plate 12 and the sidewall of the cabinet 1, a ventilation hole 14 is opened at a position of the ventilation cavity 13 away from the condensation cavity 23, the ventilation cavity 13 is communicated with the inside of the cabinet 1 through the ventilation hole 14, an air outlet 26 is disposed at the top of the heat dissipation cavity 24, and the air outlet 26 is communicated with the ventilation cavity 13. By the design, the dry hot air coming out of the dehumidifying device is discharged at a position far away from the condensing cavity through the heat dissipation cavity, and the dry hot air is prevented from being sucked into the condensing cavity again under the condition of not being neutralized with the moisture in the cabinet body. Meanwhile, when dry hot air enters the heat dissipation cavity, the temperature in the heat dissipation cavity can be raised, so that the overall temperature of the cabinet body is uniformly raised, the temperature of the cabinet body is ensured not to be reduced, no condensation is formed in the cabinet body, and the effect of instant effect is achieved.

In one embodiment, the dehumidifying apparatus 2 is located at the top of the cabinet 1, and the ventilation hole 14 is provided at the bottom of the cabinet 1. Design like this, because of the moisture is heavier, can sink to the bottom of the cabinet body, through seting up the bottom at the cabinet body with the ventilation hole, dry steam like this can the at utmost neutralize the moisture, drives away the internal moisture of cabinet fast. Through setting up dehydrating unit at the top of the cabinet body, under the effect that steam rises like this, dry steam can adjust, neutralize its humidity of passing through the position all the way at the in-process that upwards removes, improves the neutralization efficiency of moisture, improve equipment's dehumidification effect.

In one embodiment, the bottom of the condensation chamber 23 is inclined, and a drain pipe 27 is disposed at a lower position of the bottom of the condensation chamber 23, and one end of the drain pipe 27 penetrates out of the cabinet 1. The design is like this, and the comdenstion water of condensation chamber bottom passes through the drain pipe, and the discharge cabinet is external. When in actual use, a water receiving pipe can be externally connected to the drain pipe to intensively discharge the condensed water.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prevent condensation dehumidification switch board, includes the switch board cabinet body (1) and is located the inside dehydrating unit (2) of the cabinet body (1), its characterized in that: the dehumidifying device (2) comprises a box body (21), a partition plate (22) is arranged inside the box body (21), the partition plate (22) divides the inside of the box body (21) into a condensation cavity (23) and a heat dissipation cavity (24), a semiconductor refrigerating sheet (3) is further arranged on the partition plate (22), a refrigerating surface (31) of the semiconductor refrigerating sheet (3) is located in the condensation cavity (23), and a heat dissipation surface (32) of the semiconductor refrigerating sheet (3) is located in the heat dissipation cavity (24);

the partition plate (22) is provided with a vent (25) which enables the condensation cavity (23) to be communicated with the heat dissipation cavity (24), and a fan (4) is arranged at the vent (25) and used for blowing condensed gas in the condensation cavity (23) into the heat dissipation cavity (24).

2. The anti-condensation dehumidification power distribution cabinet according to claim 1, characterized in that: the refrigerator is characterized in that a controller is arranged on the cabinet body (1), a humidity sensor (11) is arranged inside the cabinet body (1), and the humidity sensor (11), the fan (4) and the semiconductor refrigerating sheet (3) are all connected with the controller.

3. The anti-condensation and dehumidification power distribution cabinet according to claim 1 or 2, characterized in that: the condensation chamber (23) and heat dissipation chamber (24) are about the distribution form, semiconductor refrigeration piece (3) are located the upper portion of baffle (22), the lower part at baffle (22) is seted up in vent (25), be provided with a plurality of radiating fin (33) on radiating surface (32) of semiconductor refrigeration piece (3), be provided with a plurality of heat conduction fins (34) on this refrigeration face (31).

4. The anti-condensation and dehumidification power distribution cabinet according to claim 3, characterized in that: gas in the cabinet body (1) enters the condensation cavity (23) from the top of the condensation cavity (23), a plurality of heat conduction fins (34) are obliquely arranged on the refrigerating surface (31) from top to bottom, the higher ends of the heat conduction fins (34) are connected with the refrigerating surface (31), and a plurality of through holes (341) are formed in each heat conduction fin (34).

5. The anti-condensation and dehumidification power distribution cabinet according to claim 4, characterized in that: the edge of each heat conduction fin (34) is connected with the wall of the condensation cavity (23) in a sealing way.

6. The anti-condensation and dehumidification power distribution cabinet according to claim 3, characterized in that: the radiating fins (33) are vertically arranged on the radiating surface (32), and one ends of the radiating fins (33) far away from the radiating surface (32) are connected with the cavity wall of the radiating cavity (24) in a sealing mode.

7. The anti-condensation and dehumidification power distribution cabinet according to claim 1 or 2, characterized in that: the bottom of the condensation cavity (23) is arranged to be inclined, a drain pipe (27) is arranged at the lower position of the bottom of the condensation cavity (23), and one end of the drain pipe (27) penetrates out of the cabinet body (1).

8. The anti-condensation and dehumidification power distribution cabinet according to claim 1 or 2, characterized in that: interior lining plate (12) of setting up along each lateral wall of the cabinet body (1) of the cabinet body, form ventilation chamber (13) between the lateral wall of lining plate (12) and the cabinet body (1), ventilation hole (14) have been seted up to the position department of keeping away from condensation chamber (23) in ventilation chamber (13), ventilation chamber (13) are through ventilation hole (14) and the inside intercommunication of the cabinet body (1), the top in heat dissipation chamber (24) is provided with air outlet (26), air outlet (26) and ventilation chamber (13) intercommunication.

9. The anti-condensation and dehumidification power distribution cabinet according to claim 8, characterized in that: the dehumidification device (2) is positioned at the top of the cabinet body (1), and the ventilation holes (14) are formed in the bottom of the cabinet body (1).