CN105186333A - Efficient electric power cabinet dehumidification device - Google Patents

Abstract

The invention discloses a high-efficiency power cabinet dehumidification device, which comprises a cabinet body, a heat dissipation chamber is arranged on the back of the cabinet body, and a heat dissipation fan is installed in the inner cavity of the heat dissipation chamber, and the inner wall of the cabinet body is in the same position as the heat dissipation chamber. A drying layer is provided at the corresponding place, and a heating grid is installed in the middle of the drying layer. A plurality of temperature sensors are arranged on the inner wall of the cabinet, and the temperature sensors are electrically connected to the control panel. Through the mutual cooperation of the drying layer and the cooling fan, the humid air in the cabinet can be dried to prevent the humid air from backflowing, and the heating net is set in the middle of the drying layer, so that the desiccant in the drying layer can be used for many times without In case of failure, the non-powered fan on the top of the cabinet and the wind engine on the bottom cooperate with each other to provide power for the electrical appliances throughout the whole process or as a backup power supply. At the same time, the non-powered fan will also exchange the air in the cabinet.

Description

A high-efficiency power cabinet dehumidification device

technical field

The invention relates to the technical field of dehumidification devices, in particular to a high-efficiency power cabinet dehumidification device.

Background technique

The power cabinet is generally made of cold-rolled steel plate or alloy to store computers and related control equipment. It can provide protection for storage equipment, shield electromagnetic interference, and arrange equipment in an orderly and orderly manner to facilitate future maintenance of equipment. In the power system Among them, the air humidity has a great influence on the safe operation of electrical equipment, and the switch cabinet door can only be used for ventilation, heat dissipation and dehumidification according to the situation, the dehumidification effect is poor, and it is greatly affected by the external environment. The company caused immeasurable losses.

Compared with high-efficiency power cabinets, high-temperature evaporation cannot be used for dehumidification. High-temperature environments will cause fires or short circuits in the electronic equipment of the power cabinets. At the same time, ordinary dehumidification equipment uses fans to discharge the humid air inside the power cabinets. Outside the cabinet, this will not effectively dry the humidity in the power cabinet.

Contents of the invention

The purpose of the present invention is to provide a high-efficiency power cabinet dehumidification device to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a high-efficiency power cabinet dehumidification device, including a cabinet, the back of the cabinet is provided with a heat dissipation chamber, and a heat dissipation fan is installed in the inner cavity of the heat dissipation chamber, the cabinet The inner wall of the cabinet is provided with a drying layer corresponding to the position of the heat dissipation chamber, and a heating net is installed in the middle of the drying layer. The inner wall of the cabinet is provided with a plurality of temperature sensors, and the temperature sensors are electrically connected to the control panel. The control panel is electrically connected to the power supply device, and the control panel is respectively electrically connected to the heating network and the cooling fan. The top of the cabinet is equipped with a non-powered fan, and the non-powered fan is inserted into the inner cavity of the cabinet through the ventilation duct.

Preferably, the power supply device includes a wind generator, and the wind generator is installed at the bottom of the inner cavity of the cabinet, and the rotor of the wind generator is inserted into the impeller of the unpowered fan through a shaft.

Preferably, heat dissipation scales are provided at the air outlet of the heat dissipation chamber.

Preferably, the number of the temperature sensors is at least four, and they are arranged on the inner wall of the cabinet sequentially from top to bottom.

Preferably, the desiccant filled in the cavity of the desiccant layer is an active mineral desiccant or a silica gel desiccant.

Preferably, the bottom of the ventilation duct is provided with a Venturi tube, the bottom opening of the ventilation duct is connected to the air inlet of the Venturi tube, the throat of the Venturi tube is provided with a suction hole, and the skirt of the Venturi tube diffuser cavity Diffusion holes are arranged on the side, and a dust collection box is arranged at the bottom of the venturi tube diffusion chamber. The shaft rod is located inside the venturi tube, and its bottom passes through the dust collection box and is connected and fixed with the wind power generator.

Compared with the prior art, the beneficial effects of the present invention are: the high-efficiency power cabinet dehumidification device, 1, through the mutual cooperation of the provided drying layer and the cooling fan, the humid air in the cabinet can be dried first and then discharged, so as to avoid recirculation of moist air;

2. There is a heating net in the middle of the drying layer, so that the desiccant in the drying layer can be used for many times without failure;

3. Through the cooperation of the unpowered fan on the top of the cabinet and the wind engine on the bottom, it can supply power to the electrical appliances throughout the whole process and can also be used as a backup power supply. At the same time, the unpowered fan can also exchange the air in the cabinet.

Description of drawings

Fig. 1 is a schematic structural diagram of the first embodiment.

Fig. 2 is a schematic structural diagram of the second embodiment.

Fig. 3 is a structural schematic diagram of the dustproof device.

In the figure: 1. Cabinet body, 2. Cooling chamber, 3. Temperature sensor, 4. Control panel, 5. Power supply device, 51. Shaft, 52. Wind generator, 6. Drying layer, 7. Heating network, 8 , cooling fan, 9, cooling scales, 10, ventilation duct, 11, unpowered fan, 12, Venturi tube, 13, suction hole, 14, diffusion hole, 15, dust collection box.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

Please refer to Figure 1, the present invention provides a technical solution: a high-efficiency power cabinet dehumidification device, including a cabinet body 1, the back of the cabinet body 1 is provided with a heat dissipation chamber 2, and the air outlet of the heat dissipation chamber 2 is provided with Heat dissipation scales 9, and a heat dissipation fan 8 is installed in the inner cavity of the heat dissipation chamber 2, a drying layer 6 is provided on the inner wall of the cabinet body 1 and corresponding to the position of the heat dissipation chamber 2, and a heating net is installed in the middle of the drying layer 6 7. Through the mutual cooperation of the provided drying layer 6 and the heat dissipation fan 8, the humid air in the cabinet 1 can be dried first and then discharged to prevent the humid air from backflowing. The desiccant filled in the inner cavity of the drying layer 6 It is an active mineral desiccant or a silica gel desiccant. A heating net 7 is provided in the middle of the drying layer 6, and the desiccant in the drying layer 6 can be used for many times without failure. The inner wall of the cabinet 1 is provided with multiple a temperature sensor 3, and the temperature sensor 3 is electrically connected with the control panel 4, the number of the temperature sensors 3 is at least four, and arranged on the inner wall of the cabinet 1 from top to bottom, the control panel 4 and the control panel 4 The power supply device 5 is electrically connected, the power supply device 5 includes a wind generator 52, and the wind generator 52 is installed at the bottom of the inner cavity of the cabinet 1, and the rotor of the wind generator 52 is inserted into the unpowered fan 11 through the shaft 51 on the impeller, and the control panel 4 is electrically connected to the heating grid 7 and the cooling fan 8 respectively, the top of the cabinet 1 is installed with a non-powered fan 11, and the non-powered fan 11 is inserted into the cabinet 1 through the ventilation duct 10 cavity, through the mutual cooperation of the unpowered fan 11 provided on the top of the cabinet 1 and the wind motor 52 provided at the bottom, it can provide power for the electrical appliances throughout the whole process and can also be used as a backup power supply. The air inside is exchanged.

The working principle of this invention: when the temperature sensor 3 senses that the temperature in the cabinet 1 is too high, the control panel 4 controls the rotation of the cooling fan 8 to extract the moist air in the cabinet 1. Due to the balance of air pressure, the unpowered fan 11 will Rotate to drive the shaft 51 to rotate, so that the wind power generator 52 can generate electricity, and the humid air is firstly dried through the drying layer 6 while extracting the humid air. When the desiccant in the drying layer 6 reaches saturation, the heating net 7 is heated. , Evaporate the moisture in the desiccant, so that it can be used for many times, and the humid air in the cabinet 1 can be dried for a long time.

Example 2

In the dehumidification device provided in Example 1, when the external wind force is strong, the external wind will be sucked into the ventilation duct 10 at a high speed while the non-powered fan 11 is rotating at a high speed, and some sand and dust will be sucked in when a large amount of wind enters. Inward, resulting in internal pollution of the power cabinet, causing damage to the power facilities inside the power cabinet. Based on the above technical problems, this embodiment makes further improvements on the basis of the dehumidification device provided in embodiment 1.

As shown in accompanying drawing 2 and accompanying drawing 3, in the present embodiment, a Venturi tube 12 is installed at the bottom of the ventilation duct 10, and the bottom opening of the ventilation duct 10 is connected with the air inlet of the Venturi tube 12. The throat of the tube 10 is provided with a suction hole 13, the skirt of the Venturi tube 12 diffuser chamber is provided with a diffuser hole 14, and at the same time, a dust collection box 15 is provided at the bottom of the Venturi tube diffuser cavity, and the shaft rod 51 is located in the Venturi tube 12, its bottom passes through the dust collection box 15 and is connected and fixed with the wind-driven generator 52.

After the above-mentioned mechanism is set, when the external strong wind enters the air inlet of the Venturi tube 12 from the ventilation passage 10, the wind speed is effectively reduced through the shrinkage of the throat, and the wind force after the speed reduction enters the inside of the diffusion chamber and is diffused by the diffusion holes 14. At the same time, due to the reduction of wind speed inside the diffusion chamber, impurities such as dust can have sufficient time to land, and the dust after landing is collected in the dust collection box 15 to prevent damage to the power facilities in the power cabinet. At the same time, due to the passage of the high-speed airflow at the inlet of the Venturi tube 12, negative pressure is generated at the throat of the Venturi tube 12, and the air in the power cabinet is sucked by the suction hole 13 in the throat, which further intensifies the flow of gas in the power cabinet. The dehumidification effect of the power cabinet is enhanced.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (6)

1. A high-efficiency power cabinet dehumidification device, including a cabinet (1), characterized in that: the back of the cabinet (1) is provided with a cooling chamber (2), and the inner cavity of the cooling chamber (2) is installed with A cooling fan (8), a drying layer (6) is provided on the inner wall of the cabinet (1) corresponding to the position of the cooling chamber (2), and a heating net (7) is installed in the middle of the drying layer (6), The inner wall of the cabinet (1) is provided with a plurality of temperature sensors (3), and the temperature sensors (3) are electrically connected to the control panel (4), and the control panel (4) is electrically connected to the power supply device (5), And the control panel (4) is electrically connected to the heating network (7) and the cooling fan (8) respectively, and the top of the cabinet (1) is installed with an unpowered fan (11), and the unpowered fan (11) passes through the ventilation duct (10) penetrate to the inner cavity of the cabinet body (1). 2. A high-efficiency power cabinet dehumidification device according to claim 1, characterized in that: the power supply device (5) includes a wind generator (52), and the wind generator (52) is installed in the cabinet (1) At the bottom of the inner cavity, the rotor of the wind generator (52) is inserted through the shaft (51) to the impeller of the non-powered fan (11). 3. The high-efficiency power cabinet dehumidification device according to claim 1, characterized in that: the air outlet of the heat dissipation chamber (2) is provided with heat dissipation scales (9). 4. A high-efficiency power cabinet dehumidification device according to claim 1, characterized in that: the number of the temperature sensors (3) is at least four, and they are arranged in sequence from top to bottom in the cabinet body (1). on the inner wall. 5. A high-efficiency power cabinet dehumidification device according to claim 1, characterized in that: the desiccant filled in the inner cavity of the drying layer (6) is an active mineral desiccant or a silica gel desiccant. 6. A dehumidification device for a high-efficiency power cabinet according to claim 1, characterized in that: the bottom of the ventilation duct is provided with a Venturi tube, and the bottom opening of the ventilation duct is connected with the air inlet of the Venturi tube. The throat of the inner tube is provided with suction holes, the skirt of the Venturi tube diffusion chamber is provided with diffusion holes, and the bottom of the Venturi tube diffusion chamber is provided with a dust collection box. The dust collection box is connected and fixed with the wind power generator.