CN209088361U - Dedusting ventilation distribution box - Google Patents

Abstract

The utility model relates to a kind of dedusting ventilation distribution boxes, rain cover including cabinet body and at the top of cabinet body, air inlet is equipped on cabinet body one side, electrostatic precipitation net is equipped in air inlet, the top of cabinet body is equipped with venthole, the vent passages that entrance is communicated with venthole are equipped in rain cover, blower is successively arranged in vent passages from the bottom up, electric heater and silica-gel desiccant, the closing means that the outlet end of vent passages can be sealed are equipped between the outlet end and silica-gel desiccant of vent passages, it is connected by venthole with vent passages between rain cover and cabinet body.The utility model has heat dissipation ventilation, dust reduction capability, and can reuse desiccant and dehumidify.

Description

Dust removal ventilation distribution box

technical field

The utility model relates to the technical field of distribution boxes, in particular to a dust removal ventilation distribution box.

Background technique

The power distribution cabinet generally assembles switchgear, measuring instruments, protective appliances and auxiliary equipment in a closed or semi-closed metal cabinet according to the electrical wiring requirements to form a low-voltage power distribution cabinet. Based on the consideration of safety and environmental protection, the power distribution cabinet generally adopts a closed structure. The electrical components in the power distribution cabinet will continuously generate heat during the working process. If the heat is not discharged in time, the temperature in the power distribution cabinet will continue to rise. High temperatures can accelerate the aging of insulating materials such as rubber in the power distribution cabinet, resulting in circuit problems such as short circuits in internal electronic components. Ventilation is a commonly used cooling method in power distribution cabinets. Existing power distribution cabinets are generally provided with ventilation windows, and the heat exchange between natural ventilation and the environment is used to discharge the internal heat and reduce the temperature of the power distribution cabinet. The naturally ventilated window easily leads to the entry of dust, which affects the normal operation of the internal electronic components.

In order to solve the problem of ventilation and heat dissipation and prevent dust from entering the power distribution cabinet and affect the normal operation of internal electronic components, the Chinese utility model patent with the authorization announcement number CN207884112U discloses a heat dissipation and dustproof power distribution cabinet. The air inlet on the top side of the power distribution cabinet is provided with an electrostatic precipitator net, and the air outlet on the other side is provided with a fan and a dustproof net. Dust in the air enters the cabinet. In addition, the top of the power distribution cabinet is also provided with a desiccant, which can absorb the moisture in the air in the cabinet, effectively reduce the ambient humidity inside the power distribution cabinet, and avoid the failure of electronic components due to the influence of moisture.

Although the power distribution cabinet has the functions of heat dissipation, ventilation, dust prevention and dehumidification, because the desiccant on the top of the power distribution cabinet is saturated with water, it cannot be reused directly. It needs to be replaced with a new desiccant to enable the power distribution cabinet to have the ability to dehumidify. , so it will be troublesome and inconvenient, and its functions need to be improved.

Utility model content

One of the purposes of the present utility model is to overcome the above-mentioned deficiencies of the prior art, and to provide a dust-removing ventilation distribution box that has the functions of heat dissipation, ventilation, and dust prevention, and can reuse desiccant for dehumidification.

To achieve the above purpose, the embodiments of the present utility model provide the following technical solutions:

Dust removal and ventilation distribution box, including the cabinet body and a rain cover set on the top of the cabinet body, an air inlet is arranged on one side of the cabinet body, an electrostatic dust removal net is arranged in the air inlet, and a ventilation hole is arranged on the top of the cabinet body to prevent The rain cover is provided with a ventilation channel whose inlet is communicated with the ventilation hole. The ventilation channel is provided with a fan, an electric heater and a silica gel desiccant in sequence from bottom to top. A ventilation channel is provided between the outlet end of the ventilation channel and the silica gel desiccant. The outlet end is sealed with a sealing mechanism, and the rain cover and the cabinet are communicated with the ventilation channel through the ventilation hole.

Preferably, the closing mechanism is provided in the rain cover, which includes a telescopic cylinder and a baffle plate disposed above the output end of the piston rod of the telescopic cylinder, and the baffle plate moves upward to seal the outlet end of the ventilation passage.

Preferably, the outlet end of the ventilation channel is provided with a dust filter.

Preferably, a solar panel is provided on the top surface of the rain cover, a battery is provided inside the rain cover, and the solar panel and the battery are electrically connected.

Preferably, the electric heater, the fan and the telescopic cylinder are electrically connected to the battery.

Owing to adopting the above-mentioned technical scheme, compared with the prior art, the utility model has the following beneficial effects:

The rain cover and the cabinet are connected with the ventilation channel through the ventilation hole, and the fan can be started to realize the cooling and ventilation of the cabinet. The electrostatic precipitator at the air inlet of the cabinet can prevent dust particles in the air from entering the cabinet when cooling and ventilating the cabinet.

The outlet end of the ventilation channel is sealed by a sealing mechanism, and the silica gel desiccant can absorb the moisture in the air in the cabinet and reduce the environmental humidity of the cabinet. When the silica gel desiccant is saturated with water, open the outlet end of the ventilation channel, and then start the electric heater and fan, which can dry the silica gel desiccant while realizing the cooling and ventilation of the cabinet, so that the silica gel desiccant can be reused.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Referring to FIG. 1, it includes a cabinet 1 and a rain cover 2 arranged on the top of the cabinet 1. An air inlet 3 is arranged on one side of the cabinet 1, and an electrostatic precipitator 4 is arranged in the air inlet 3. The cabinet 1 The top is provided with ventilation holes 5, the rain cover 2 is provided with a ventilation channel 6 whose inlet is communicated with the ventilation hole 5, and the ventilation channel 6 is provided with a fan 7, an electric heater 8 and a silica gel desiccant 9 in order from bottom to top. Between the outlet end of the channel 6 and the silica gel desiccant 9, there is a sealing mechanism 10 which can seal the outlet end of the ventilation channel 6.

The rain cover 2 is covered on the cabinet body 1 , the inlet end of which is communicated with the ventilation hole 5 , and the outlet end is arranged on the outer side wall of the rain cover 2 . Through the ventilation hole 5 and the ventilation channel 6 , when the fan 7 is activated, the heat in the cabinet 1 can be pumped from the inside of the cabinet 1 to the outside of the cabinet 1 .

The outlet end of the ventilation channel 6 is sealed by the sealing mechanism 10 , and the silica gel desiccant 9 can absorb the moisture in the air in the cabinet 1 and reduce the ambient humidity of the cabinet 1 . When the silica gel desiccant 9 is saturated with water, the outlet end of the ventilation channel 6 is opened, and then the electric heater 8 and the fan 7 are started, and the silica gel desiccant 9 can be dried while the cooling and ventilation of the cabinet 1 is realized, so that the silica gel desiccant 9 can be dried. Can be reused.

The drying temperature of the silica gel desiccant 9 is generally controlled at 100-120 degrees Celsius. Therefore, the electric heater 8 can choose an ordinary constant temperature heater or a temperature-controlled heater, and the difference between the silica gel desiccant 9 and the electric heater 8 can be appropriately adjusted according to the actual situation. distance between. In order to achieve a better drying effect, a temperature sensor can be installed in the silica gel desiccant 9, and the temperature sensor can be used to detect the temperature of the silica gel desiccant 9 during drying. When the drying temperature of the silica gel desiccant 9 is too high, the heater 8 is stopped, so as to avoid that the drying temperature is too high and the performance of the silica gel desiccant 9 is reduced.

When the silica gel desiccant 9 absorbs the air moisture in the cabinet 1 and reduces the ambient humidity in the cabinet, the outlet end of the ventilation channel 6 should be sealed, which can better reduce the ambient humidity in the cabinet. The closing mechanism 10 is provided inside the rain cover 2 , and includes a telescopic cylinder 11 and a baffle 12 . The baffle 12 is connected on the output end of the piston rod of the telescopic cylinder 11 . When the telescopic cylinder 11 is extended, the baffle 12 moves upward to seal the outlet end of the ventilation passage 6 . A rubber sealing ring can be arranged between the baffle 12 and the ventilation channel 6 to enhance the sealing between the two.

When the telescopic cylinder 11 is retracted, the baffle 12 moves downward, and the outlet end of the ventilation passage 6 is connected with the outside of the rain cover 2 . Start the fan, the heat in the cabinet 1 will be discharged from the ventilation channel 6. A dust filter 13 is provided at the outlet end of the ventilation channel 6 to prevent air dust and fine particles from outside the cabinet 1 from entering the cabinet 1 from the ventilation channel 6 .

A solar cell panel 14 is installed on the top surface of the rain cover 2 , and an independent space is provided inside the rain cover 2 , and a battery 15 is installed in the space. By connecting the two through the cable guide, the battery 15 can be charged by the solar energy, so as to play an energy saving effect.

The fan 7 , the electric heater 8 and the telescopic cylinder 11 are connected to the battery 15 by wires, and the battery 15 can be used as the power supply output to drive the fan 7 , the electric heater 8 and the telescopic cylinder 11 to work.

In addition, for the equipment including the fan 7, the electric heater 8, and the telescopic cylinder 11 in the distribution box, their operation and operation can be controlled by a control chip such as a PLC or a single-chip microcomputer. Install temperature sensors, humidity sensors and dust sensors inside the power distribution cabinet to monitor the temperature, humidity and dust concentration of the power distribution cabinet in real time. When the temperature, humidity or dust concentration in the cabinet exceeds the preset alarm value, the control chip is used to control the operation of the fan 7, the electric heater 8 or the telescopic cylinder 11 accordingly, which can improve the automation of the distribution box. degree and safety performance.

The above are all preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all other technical solutions under the idea of the present utility model belong to the protection scope of the present utility model.

Claims (5)

1. dedusting ventilation distribution box, the rain cover including cabinet body and at the top of cabinet body is equipped with air inlet on cabinet body one side, Electrostatic precipitation net is equipped in air inlet, it is characterised in that: the top of the cabinet body is equipped with venthole, be equipped in the rain cover into The vent passages that mouthful end is communicated with venthole are successively arranged blower, electric heater and silica gel in the vent passages from the bottom up Desiccant, the outlet end of vent passages can be sealed by being equipped between the outlet end and silica-gel desiccant of the vent passages Closing means are connected by venthole with vent passages between the rain cover and cabinet body.

2. dedusting ventilation distribution box according to claim 1, it is characterised in that: the closing means be set to rain cover it It is interior comprising telescopic cylinder and the baffle being located on retractable air cylinder piston bar output end, the baffle, which moves up, to incite somebody to action The outlet end of vent passages seals.

3. dedusting ventilation distribution box according to claim 2, it is characterised in that: be the outlet end of vent passages equipped with dust-proof Net.

4. dedusting ventilation distribution box according to claim 3, it is characterised in that: the top surface of the rain cover is equipped with solar energy Solar panel, the rain cover inside are equipped with battery, are electrically connected between the solar panel and battery.

5. dedusting ventilation distribution box according to claim 4, it is characterised in that: the electric heater, blower and flexible gas It is electrically connected between cylinder and the battery.