CN217882367U - Electric power cabinet dehumidifier based on semiconductor refrigeration technology - Google Patents

Abstract

The utility model relates to a condensation dehumidification technical field specifically is an electric power cabinet dehumidifier based on semiconductor refrigeration technology. The air conditioner comprises a shell, a first partition plate and a second partition plate, wherein the first partition plate and the second partition plate divide the space in the shell into a refrigerating area, a heating area and a drying area from left to right; the semiconductor refrigerator is arranged on the first partition plate and comprises a refrigerating end and a heating end, the refrigerating end is located in the refrigerating area, and the heating end is located in the heating area. The air that humidity is big in the extraction cabinet internal portion of cabinet through the air exhauster carries the casing inside to dehumidify, the air after the dehumidification drying carries the cabinet internal portion once more, and can introduce the new trend, the air that humidity is big and new trend loop through the refrigeration region, heat regional and dry region, make the air that gets into the cabinet internal portion obtain enough drying, thereby guarantee the drying of the cabinet internal portion, make the circulation of air of the cabinet internal portion simultaneously, the dehumidification effect of the cabinet internal portion has been improved greatly.

Description

A power cabinet dehumidifier based on semiconductor refrigeration technology

technical field

The utility model relates to the technical field of condensation dehumidification, in particular to an electric cabinet dehumidifier based on semiconductor refrigeration technology.

Background technique

The semiconductor refrigeration dehumidification technology is based on the thermodynamic principle, that is, the Peltier effect to achieve the dehumidification effect. It can also be called thermoelectric refrigeration technology or Peltier refrigeration technology. Its working principle is to apply a DC voltage at both ends of the P-N junction of the semiconductor refrigeration device, and the two ends of the P-N junction will respectively form a cooling end and a heating end. It is precipitated in the air, so as to achieve the effect of dehumidification.

Power cabinets refer to important power equipment used for on-off, control or protection in power system power generation, transmission, distribution, power conversion and consumption, such as box-type substations, switch cabinets, distribution boxes, and transformer boxes. Or substation etc. Since the power cabinet is generally installed outdoors, the interior of the power cabinet is easily affected by the external environment. If the internal humidity is too high, condensation or even water will occur, which will cause a short circuit inside the power cabinet, thus affecting the normal operation of the power system. operate.

Utility model content

The purpose of the utility model is to provide a power cabinet dehumidifier based on semiconductor refrigeration technology, which can effectively reduce the humidity in the power cabinet, and is suitable for various power cabinets, such as box-type substations, switch cabinets, distribution boxes, Transformer box or substation, etc.

In order to achieve the above purpose, the utility model proposes the following technical solutions: a dehumidifier for power cabinets based on semiconductor refrigeration technology, including a housing, a first partition and a second partition are installed in the housing, and the first The partition board and the second partition board divide the space in the housing from left to right into a cooling area, a heating area and a drying area;

A semiconductor refrigerator is installed on the first partition, and the semiconductor refrigerator includes a cooling end and a heating end, the cooling end is located in the cooling area, and the heating end is located in the heating area;

The housing is connected with an air inlet pipe and an air outlet pipe, the air inlet pipe is provided with an exhaust fan, and the air inlet pipe introduces humid air into the cooling area, and the first partition and the second partition are respectively provided with There are the first air inlet and the second air inlet, and the humid air passes through the cooling end, heating end and drying area in sequence;

A water storage box is communicated with the bottom of the cooling area.

Further, in the utility model, several copper deflectors are fixedly connected to the cooling end and the heating end, and the cooling end reduces the temperature on the copper deflectors, and the heating The end causes the temperature on the copper deflector on it to rise.

Further, in the present utility model, one end of the air inlet pipe communicates with the power cabinet, one end of the air outlet pipe communicates with the power cabinet, and the air inlet pipe is also connected with a fresh air pipe.

Further, in the present utility model, the housing is fixedly connected with a block, and the block can be inserted into the slot of the positioning block, and the positioning block is fixedly arranged on the power cabinet.

Further, in the present utility model, the first air inlet is located at the lower end of the first partition, the second air inlet is located at the upper end of the second partition, and the first air inlet is connected with an air duct, so An air guide nozzle is communicated with the air guide pipe, the air guide nozzle is trumpet-shaped, and the air guide nozzle is located at the bottom of the heating end.

Further, in the present utility model, two sets of support blocks are arranged in the drying area, and the two sets of support blocks are fixedly connected with the housing, and a moisture-absorbing net is placed on the first set of support blocks, and the moisture-absorbing net is set Hygroscopic cotton is provided, and a support net is installed on the second group of support blocks, and a desiccant is arranged on the support net.

Further, in the present utility model, the desiccant is a 4A molecular sieve desiccant.

Further, in the present utility model, the humidity sensor and the controller are included, and the humidity sensor and the semiconductor refrigerator are respectively connected with the controller;

The humidity sensor is used to detect the humidity value in the power cabinet and send the humidity value to the controller; the controller is used to receive the humidity value and output a control signal corresponding to the humidity value to the semiconductor refrigerator; the control signal includes dehumidification signal or standby Signal, the semiconductor refrigerator is used to receive the control signal and perform the operation corresponding to the control signal.

Further, in the utility model, the controller is a single-chip microcomputer, and the single-chip microcomputer receives the humidity value from the humidity sensor, and outputs a control signal corresponding to the humidity value to the semiconductor refrigerator to realize the control of the refrigerator.

Further, in the utility model, the housing is provided with a first opening and closing door and two second opening and closing doors, the first opening and closing door corresponds to the heating area, and the two second opening and closing doors correspond to the cooling area respectively. areas and dry areas.

Beneficial effects, the technical solution of the application has the following technical effects: the utility model extracts the air with high humidity inside the cabinet body through the exhaust fan and transports it to the inside of the housing for dehumidification, and then transports the dehumidified and dried air to the inside of the cabinet body again , and can introduce fresh air, the air with high humidity and fresh air pass through the cooling area, heating area and drying area in turn, so that the air entering the interior of the cabinet body is sufficiently dry, thereby ensuring the drying of the interior of the cabinet body and making the cabinet body The internal air circulation greatly improves the dehumidification effect inside the cabinet body, and effectively avoids the condensation of moisture on the surface of the electrical equipment inside the cabinet body, which reduces the insulation performance of electrical equipment and reduces the safety performance.

It should be understood that all combinations of the foregoing concepts as well as additional concepts described in more detail below may be considered part of the inventive subject matter of the present disclosure, provided such concepts are not mutually inconsistent.

The foregoing and other aspects, embodiments and features of the teachings of the present invention can be more fully understood from the following description when taken in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and/or beneficial effects of the exemplary embodiments, will be apparent from the following description, or learned by practice of specific embodiments according to the teachings of the present invention.

Description of drawings

The figures are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like reference numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of the various aspects of the invention will now be described by way of example with reference to the accompanying drawings, in which:

Fig. 1 is a schematic diagram of a dehumidifier of the present invention installed on a distribution box.

Fig. 2 is a schematic diagram of the dehumidifier of the present invention installed on the distribution box.

Fig. 3 is a schematic side sectional view of the dehumidifier of the present invention installed on the distribution box.

Fig. 4 is a schematic structural view of the dehumidifier of the present invention.

In the figure, the meanings of the reference signs are as follows: 1. shell; 2. air inlet pipe; 3. air outlet pipe; 4. fresh air pipe; 5. water storage box; 6. clamping block; 7. positioning block; 8. Distribution box; 9. First opening and closing door; 10. Second opening and closing door; 11. Exhaust fan; 101. First partition; 102. Second partition; 103. Cooling area; 104. Heating Area; 105, drying area; 106, first air inlet; 107, second air inlet; 108, semiconductor refrigerator; 109, cooling end; 110, heating end; 111, support net; 112, air guide nozzle; 113 , air duct; 114, support block; 115, hygroscopic net.

Detailed ways

In order to better understand the technical content of the utility model, specific embodiments are given and described as follows in conjunction with the accompanying drawings. Aspects of the invention are described in this disclosure with reference to the accompanying drawings, in which a number of illustrated embodiments are shown. Embodiments of the present disclosure are not necessarily defined to include all aspects of the present invention. It should be understood that the various concepts and embodiments described above, as well as those concepts and embodiments described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the present invention are not Not limited to any implementation. In addition, some aspects disclosed in this utility model can be used alone or in any appropriate combination with other aspects disclosed in this utility model.

As shown in Figures 1-4, this implementation provides a power cabinet dehumidifier based on semiconductor refrigeration technology. The power cabinet in this embodiment is a distribution box. Taking the distribution box 8 as an example, the dehumidifier includes a shell 1. A first partition 101 and a second partition 102 are installed in the casing 1, and the first partition 101 and the second partition 102 divide the space in the casing 1 from left to right into a cooling area 103, hot zone 104 and drying zone 105;

A semiconductor cooler 108 is installed on the first partition 101 , the semiconductor cooler 108 includes a cooling end 109 and a heating end 110 , the cooling end 109 is located in the cooling area 103 , and the heating end 110 is located in the heating area 104 . A DC voltage is applied to both ends of the P-N junction of the semiconductor refrigerator, the temperature of one end drops to form a cooling end, and the temperature of the other end rises to form a heating end. When the semiconductor cooler is working, the wet and cold air in the distribution box meets the cooling end 109 of the semiconductor cooler, and the water vapor in the air encounters condensation, resulting in accumulated water, which is discharged out of the distribution box; after that, the condensed air reaches The heating end 110 of the semiconductor refrigerator absorbs heat and discharges it into the distribution box.

In order to increase the efficiency and effect of dehumidification, several copper deflectors are fixedly connected to the cooling end 109 and the heating end 110. The cooling end 109 reduces the temperature on the copper deflectors, and the heating end 110 makes The temperature on the copper deflector on it rises, and the contact area with the air can be increased through the copper deflector, thereby increasing the efficiency and effect of dehumidification.

The housing 1 is connected with an air inlet pipe 2 and an air outlet pipe 3, one end of the air inlet pipe 2 is connected with the power distribution box 8, one end of the air outlet pipe 3 is connected with the power distribution box 8, and the air inlet pipe 2 is also connected with a The fresh air pipe 4, the air inlet pipe 2 is provided with an exhaust fan 11, the air inlet pipe 2 introduces humid air into the cooling area 103, the first partition 101 and the second partition 102 are respectively provided with a first air inlet 106 and a The second air inlet 107, the humid air sequentially passes through the cooling end 109, the heating end 110 and the drying area 105;

The bottom of the cooling area 103 is connected with a water storage box 5 , which is used to store condensed moisture, and the water storage box 5 is provided with a drain pipe to discharge the moisture to the outside of the distribution box 8 .

In order to facilitate installation, a block 6 is fixedly connected to the housing 1. The block 6 can be inserted into the slot of the positioning block 7. The positioning block 7 is fixedly arranged on the distribution box 8. Through the block 6 and the positioning block 7 The casing 1 can be quickly installed on the distribution box 8 .

The first air inlet 106 is located at the lower end of the first partition 101, the second air inlet 107 is located at the upper end of the second partition 102, the first air inlet 106 is connected with the air guide pipe 113, and the air guide pipe 113 is connected with the air guide nozzle 112, the air guide nozzle 112 is trumpet-shaped, and the air guide nozzle 112 is located at the bottom of the heating end 110, and the dehumidified air can be evenly distributed to the heating end 110 through the air guide pipe 113 and the trumpet-shaped air guide nozzle 112.

Two sets of support blocks 114 are arranged in the drying area 105, and the two sets of support blocks 114 are all fixedly connected with the housing 1. The first set of support blocks 114 is placed with a hygroscopic net 115, and the hygroscopic net 115 is provided with hygroscopic cotton. A support net 111 is installed on the support block 114, and a desiccant is arranged on the support net 111. The desiccant is a 4A molecular sieve desiccant. The water vapor in the air can be further removed by the hygroscopic cotton and the desiccant to improve the dehumidification effect.

Also comprise humidity sensor and controller, humidity sensor and semiconductor cooler 108 are connected with controller respectively, and controller is single-chip microcomputer, and single-chip microcomputer receives the humidity value from humidity sensor, and outputs the control signal corresponding to humidity value to semiconductor cooler 108 , to realize the control of the refrigerator;

The humidity sensor is used to detect the humidity value in the distribution box and send the humidity value to the controller; the controller is used to receive the humidity value and output a control signal corresponding to the humidity value to the semiconductor refrigerator 108; the control signal includes a dehumidification signal or For the standby signal, the semiconductor refrigerator 108 is used to receive the control signal and execute the operation corresponding to the control signal.

Further, in the present utility model, the housing 1 is provided with a first opening and closing door 9 and two second opening and closing doors 10, the first opening and closing door 9 corresponds to the heating area 104, and the two second opening and closing doors 10 corresponds to the cooling area 103 and the drying area 105 respectively, and the dehumidifier of this embodiment is convenient to be inspected and repaired through the first opening and closing door 9 and the two second opening and closing doors 10 .

When in use, the humid air and fresh air in the distribution box 8 are pumped into the cooling area by the exhaust fan 11, and pass through the heating area and the drying area in turn. The damp cold air and fresh air in the electrical box meet the low-temperature copper deflector, and the water vapor in the air meets condensation to generate accumulated water, which is discharged into the water storage box 5, and then the condensed air passes through the air guide pipe 113 And the trumpet-shaped air guide nozzle 112 reaches the heating end 110 of the semiconductor refrigerator, absorbs heat, and discharges it into the dry area. The moisture in the air can be further removed through the moisture-absorbing cotton and desiccant to improve the dehumidification effect. Finally, the dry air passes through The air outlet pipe 3 enters the distribution box 8 .

In this embodiment, the air with high humidity inside the distribution box is extracted by the exhaust fan and sent to the inside of the housing for dehumidification, and the dehumidified and dried air is sent to the inside of the distribution box again, and fresh air can be introduced, and the air with high humidity and fresh air are sequentially Through the cooling area, heating area and drying area, the air entering the distribution box is sufficiently dry, so as to ensure the dryness inside the distribution box, and at the same time, the air inside the distribution box is circulated, which greatly improves the air temperature inside the distribution box. The dehumidification effect effectively avoids the condensation of moisture on the surface of the electrical equipment inside the distribution box, which reduces the insulation of the electrical equipment and reduces the safety performance.

The standard parts used in this application document can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt mature bolts, rivets, welding, etc. in the prior art. Conventional means, machinery, parts and equipment all adopt conventional models in the prior art, and the control mode is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art, and belongs to the well-known knowledge in the art. Common sense, and this application is mainly used to protect mechanical devices, so this application will not explain the control method and circuit connection in detail.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the utility model belongs can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present utility model should be defined by the claims.

Claims (10)

1. The utility model provides an electric power cabinet dehumidifier based on semiconductor refrigeration technique, includes casing (1), its characterized in that: a first partition plate (101) and a second partition plate (102) are installed in the shell (1), and the first partition plate (101) and the second partition plate (102) divide the space in the shell (1) into a refrigerating area (103), a heating area (104) and a drying area (105) from left to right;

a semiconductor refrigerator (108) is mounted on the first partition plate (101), the semiconductor refrigerator (108) comprises a refrigerating end (109) and a heating end (110), the refrigerating end (109) is positioned in the refrigerating area (103), and the heating end (110) is positioned in the heating area (104);

an air inlet pipe (2) and an air outlet pipe (3) are communicated with the shell (1), an exhaust fan (11) is arranged in the air inlet pipe (2), wet air is introduced into the refrigerating area (103) through the air inlet pipe (2), a first air inlet (106) and a second air inlet (107) are formed in the first partition plate (101) and the second partition plate (102) respectively, and the wet air sequentially passes through the refrigerating end (109), the heating end (110) and the drying area (105);

the bottom of the refrigeration area (103) is communicated with a water storage box (5).

2. The power cabinet dehumidifier based on the semiconductor refrigeration technology as claimed in claim 1, wherein: the heating and cooling end (109) and the heating end (110) are both fixedly connected with a plurality of copper guide plates, the temperature of the copper guide plates on the heating and cooling end (109) is reduced, and the temperature of the copper guide plates on the heating and cooling end (110) is increased.

3. The power cabinet dehumidifier based on the semiconductor refrigeration technology as claimed in claim 1, wherein: the air conditioner is characterized in that one end of the air inlet pipe (2) is communicated with the electric power cabinet, one end of the air outlet pipe (3) is communicated with the electric power cabinet, and the air inlet pipe (2) is further communicated with a fresh air pipe (4).

4. The power cabinet dehumidifier based on the semiconductor refrigeration technology as claimed in claim 1, wherein: fixedly connected with fixture block (6) on casing (1), in fixture block (6) can insert the draw-in groove of locating piece (7), locating piece (7) are fixed to be set up on the power box cupboard.

5. The power cabinet dehumidifier based on the semiconductor refrigeration technology as claimed in claim 1, wherein: the first air inlet (106) is located at the lower end of the first partition plate (101), the second air inlet (107) is located at the upper end of the second partition plate (102), the first air inlet (106) is communicated with an air guide pipe (113), an air guide nozzle (112) is communicated with the air guide pipe (113), the air guide nozzle (112) is horn-shaped, and the air guide nozzle (112) is located at the bottom of the heating end (110).

6. The power cabinet dehumidifier based on the semiconductor refrigeration technology as claimed in claim 1, wherein: two groups of supporting blocks (114) are arranged in the drying area (105), the two groups of supporting blocks (114) are fixedly connected with the shell (1), a moisture absorption net (115) is placed on the first group of supporting blocks (114), moisture absorption cotton is arranged on the moisture absorption net (115), a supporting net (111) is installed on the second group of supporting blocks (114), and a drying agent is arranged on the supporting net (111).

7. The power cabinet dehumidifier based on the semiconductor refrigeration technology as claimed in claim 6, wherein: the desiccant is a 4A molecular sieve desiccant.

8. The power cabinet dehumidifier based on the semiconductor refrigeration technology as claimed in claim 1, wherein: the refrigerator comprises a humidity sensor and a controller, wherein the humidity sensor and a semiconductor refrigerator (108) are respectively connected with the controller;

the humidity sensor is used for detecting a humidity value in the power cabinet and sending the humidity value to the controller; the controller is used for receiving the humidity value and outputting a control signal corresponding to the humidity value to the semiconductor refrigerator (108); the control signal comprises a dehumidification signal or a standby signal, and the semiconductor refrigerator (108) is used for receiving the control signal and executing the corresponding operation of the control signal.

9. The power cabinet dehumidifier based on the semiconductor refrigeration technology as claimed in claim 8, wherein: the controller is a single chip microcomputer, the single chip microcomputer receives the humidity value from the humidity sensor and outputs a control signal corresponding to the humidity value to the semiconductor refrigerator (108), and the refrigerator is controlled.

10. The power cabinet dehumidifier based on the semiconductor refrigeration technology as claimed in claim 1, wherein: the shell (1) is provided with a first opening and closing door (9) and two second opening and closing doors (10), the first opening and closing door (9) corresponds to the heating area (104), and the two second opening and closing doors (10) correspond to the refrigerating area (103) and the drying area (105) respectively.

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