CN209544841U - The dehumidifying condensation proof device of looped network case - Google Patents

Abstract

The utility model discloses a kind of dehumidifying condensation proof devices of looped network case, it is characterized by comprising the first cabinet body, the second cabinet body and Dehumidification controlling casees, the inside of the Dehumidification controlling case is arranged control room, filter chamber, blower and new air compartment, blower and is set between filter chamber and new air compartment.The utility model has double cabinet body structures and the design of unique Dehumidification controlling, can effectively pre- anti-condensation generation, improve the safety of electric equipment operation, energy-saving effect is good, high reliablity.

Description

Dehumidification and anti-condensation device for ring cage

technical field

The utility model relates to the technical field of electric cabinet safety protection, in particular to a dehumidification and anti-condensation device for a ring net box with convenient installation and good use effect.

Background technique

Anti-condensation control is an important part of the safety maintenance of the ring net box. After the high temperature generated by the electrical components in the box and the temperature outside the box reach below the dew point temperature, the liquid water condensed on the inner wall of the box will mix with the dust inside, and corresponding The conductive channel will cause damage to the electrical insulation, reduce the insulation strength, and cause discharge phenomena. Long-term operation can easily cause short-circuit accidents. In severe cases, the entire branch box may be scrapped. Generally speaking, the formation of condensation must include two conditions: one is that the air has relatively high relative humidity; the other is that the temperature of the equipment where condensation occurs is always lower than its ambient temperature. At present, the commonly used decondensation measures are mostly in the following three forms: one is to install a heater in the box, and manually turn on or off the heater according to the situation; the other is to install a condensation sensor in addition to the heater in the box to Control the switching of the heater; the third is to install a drainage type electronic dehumidifier in the box. The above three methods consume a lot of energy, and the cost of equipment use and maintenance is relatively high, so more innovative designs are still needed.

Utility model content

Aiming at the above technical problems, the utility model provides a dehumidification and anti-condensation device for a ring cage, which has a double cabinet structure and a unique dehumidification control design, which can effectively prevent condensation and improve the safety of electrical equipment operation , good energy-saving effect and high reliability.

For realizing above-mentioned technical purpose, the utility model has adopted following technical scheme:

A dehumidification and anti-condensation device for a ring cage, characterized in that it includes a first cabinet, a second cabinet and a dehumidification control box, the first cabinet is arranged inside the second cabinet, and the first cabinet The interior of the cabinet is equipped with electrical equipment, and the dehumidification control box is installed on the outer wall of the second cabinet; the dehumidification control box includes a box body and a box door, and the inside of the box body is provided with a control room, a filter room, a fan and a fresh air room, and the box body The air inlet connected to the filter chamber and the air outlet connected to the fresh air chamber are set on the side wall of the first cabinet. The air outlet of the fresh air chamber is connected to the inside of the first cabinet through a pipeline. Between the filter room and the fresh air room; the control room is provided with a controller, the inside of the first cabinet and the second cabinet are provided with temperature sensors connected to the controller, and the controller is connected to the fan.

Preferably, filter cotton is arranged on the outer wall of the filter chamber.

Preferably, the controller determines the control instruction of the fan according to the temperature difference between the inside and outside of the first cabinet. When the internal temperature of the first cabinet is higher than the external temperature of the first cabinet and higher than the dew point temperature, the fan starts, and the dehumidification The control box sends filtered fresh air to the first cabinet; otherwise, the fan is turned off.

Due to the adoption of the above technical scheme, the utility model has the following technical effects: the utility model has a double cabinet structure and a unique dehumidification control design, which can effectively prevent condensation, improve the safety of electrical equipment operation, and have a good energy-saving effect. High reliability.

Description of drawings

The utility model will be explained by way of example and with reference to the accompanying drawings, wherein:

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a perspective view of the dehumidification control box in Fig. 1;

FIG. 3 is a front view of FIG. 2 .

Detailed ways

All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

A dehumidification and anti-condensation device for a ring cage as shown in Figures 1 to 3 includes a first cabinet 1, a second cabinet 2 and a dehumidification control box 3, and the first cabinet 1 is arranged on the second cabinet 2, the inside of the first cabinet 1 is equipped with electrical equipment, the dehumidification control box 3 is installed on the outer wall of the second cabinet 2, the dehumidification control box 3 includes a box body 31 and a box door 32, and the inside of the box body 31 is set Control chamber 33, filter chamber 34, blower fan 35 and fresh air chamber 36, offer the air inlet that communicates with filter chamber 34, the air outlet that communicates with fresh air chamber 36 on the side wall of casing 31, the air outlet of fresh air chamber 36 is connected to Inside the first cabinet 1, the side wall of the first cabinet 1 is provided with an air outlet, and the fan 35 is arranged between the filter chamber 34 and the fresh air chamber 36; the control room 33 is provided with a controller, and the first cabinet 1 and the second cabinet 2 are provided with temperature sensors connected to the controller, and the controller is connected to the fan 35 . Filter cotton 341 is arranged on the outer wall of the filter chamber 34, and the controller determines the control command of the blower fan 35 according to the temperature difference between the inside and outside of the first cabinet 1, and the internal temperature of the first cabinet 1 is higher than the external temperature of the first cabinet 1 and higher. When the temperature is at the dew point, the fan 35 is started, and the dehumidification control box 3 sends filtered fresh air to the first cabinet 1; otherwise, the fan 35 is turned off.

The setting of the double cabinets of the utility model is particularly in line with the temperature change characteristics of the outdoor environment, that is, the second cabinet is under the action of light conditions, from day to night, the space between the outer wall of the first cabinet and the inner wall of the second cabinet The temperature of the first cabinet rises first and then drops, while the temperature in the first cabinet is mainly affected by the heat generated by the electrical equipment. The temperature change in the first cabinet is more controllable than the single-layer cabinet structure. Specifically, the first cabinet used to install electrical equipment is connected to the air outlet of the fresh air chamber of the dehumidification control box. The temperature in the first cabinet is measured to be higher than that between the outer wall of the first cabinet and the inner wall of the second cabinet. When the temperature in the space is higher than the dew point temperature, the controller will automatically drive the fan to start, and send the filtered fresh air to the first cabinet, and the positive pressure will be maintained in the cabinet to ensure the cleanness of the air in the branch cabinet, and the fresh air will enter the first cabinet. The first cabinet lowers the ambient temperature inside the first cabinet, thereby reducing the temperature difference between the inside and outside of the first cabinet, destroying the condensation condition on the inner wall of the first cabinet, and achieving the effect of dehumidification and anti-condensation, without the need for heating settings, It is not easy to introduce dust, has high safety, and has good energy-saving effect.

The utility model is not limited to the aforementioned specific embodiments. The utility model extends to any new feature or any new combination disclosed in this specification, as well as the steps of any new method or process or any new combination disclosed.

Claims (3)

1. a kind of dehumidifying condensation proof device of looped network case, it is characterised in that: including the first cabinet body (1), the second cabinet body (2) and dehumidifying Control cabinet (3), first cabinet body (1) are set to the inside of the second cabinet body (2), and the inside of the first cabinet body (1), which is equipped with, electrically to be set Standby, Dehumidification controlling case (3) is mounted on the outer wall of the second cabinet body (2)；The Dehumidification controlling case (3) includes cabinet (31) and chamber door (32), inside setting control room (33) of cabinet (31), filter chamber (34), blower (35) and new air compartment (36), cabinet (31) The air inlet of connection filter chamber (34), the air outlet of the new air compartment (36) of connection are opened up on side wall, the air outlet of new air compartment (36) is logical The inside of piping connection to the first cabinet body (1) is crossed, air outlet is set on the side wall of the first cabinet body (1), blower (35) was set to Between filter chamber (34) and new air compartment (36)；Controller, the first cabinet body (1) and the second cabinet body (2) are equipped in the control room (33) Inside be equipped with the temperature sensor for being connected to controller, controller connects blower (35).

2. the dehumidifying condensation proof device of looped network case according to claim 1, it is characterised in that: outside the filter chamber (34) Filter cotton (341) are set on wall.

3. the dehumidifying condensation proof device of looped network case according to claim 1, it is characterised in that: the controller is according to first The inside and outside temperature difference of cabinet body (1) determines the control instruction of blower (35), and the internal temperature of the first cabinet body (1) is higher than the first cabinet body (1) external temperature and when being higher than dew-point temperature, blower (35) starting, the conveying into the first cabinet body (1) from Dehumidification controlling case (3) Filtered fresh air；Otherwise blower (35) is closed.