Dehumidification system in switch cabinet

Abstract

The utility model belongs to the technical field, and particularly relates to a dehumidification system in a switch cabinet, which comprises a silica gel rotary wheel dehumidifier, a dry air flow collecting distributor, a temperature and humidity detection sensor for monitoring the temperature and humidity of each switch cabinet, and a dehumidification system control center for controlling the dehumidification system, the silica gel rotating wheel dehumidifier is connected with a dry air flow collecting distributor through a dry air main pipeline, the dry air flow collecting distributor is connected with all the switch cabinets through a plurality of dry air branch pipelines, and all the dry air branch pipelines are provided with electromagnetic valves for controlling medium circulation. According to the utility model, the electromagnetic valves controlled by the dehumidification system control center are arranged on the dry air branch pipelines, so that secondary control is carried out, the dehumidification of all switch cabinets can be integrally controlled, and the dehumidification of each switch cabinet can be accurately controlled through the electromagnetic valves; therefore, scientific and reasonable resource utilization is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dehumidification inside a switch cabinet, and in particular relates to a dehumidification system inside a switch cabinet. Background Art

[0002] The dehumidification method currently used in substations is to install ordinary air conditioners indoors and use the cooling function of the air conditioner to dehumidify. However, while the cold air lowers the indoor air temperature, it also lowers the surface temperature of the switch cabinet. The various cabinets configured in the station are basically sealed or semi-sealed, and the dry air that has been dehumidified indoors cannot enter the switch cabinet; in addition, the cable enters the switch cabinet through the cable trench, and the cable trench is connected to the outdoor air. The outdoor cable trench often has water accumulation on rainy days. When the high temperature weather in summer comes after the rain, the water vapor in the cable trench will evaporate a lot. If the cable entry and exit parts at the bottom of the switch cabinet are not sealed in place, a large amount of high-temperature water vapor will enter the switch cabinet, and the cabinet temperature is very low. The high-temperature and humid air will immediately condense into water when it encounters the cold cabinet surface, forming "condensation", which will cause electrical accidents.

[0003] After searching, it was found that the existing Chinese patent (publication number CN106207771A) discloses a dehumidification system in a switch cabinet, including a silica gel rotary dehumidifier, the silica gel rotary dehumidifier is connected to a dry air collector distributor through a dry air main transmission pipeline, and the dry air collector distributor is respectively connected to each switch cabinet in the switch cabinet group through a branch dry air transmission pipeline, the silica gel rotary dehumidifier is connected to the dehumidification system control center through an electrical control line, and the dehumidification system control center is a PLC control system. The invention uses silica gel wheel dehumidification technology, so the dehumidification efficiency is high, and the humid air that quickly gathers in rainy weather can be dynamically dehumidified, and the temperature of the original air in the switch cabinet will not be changed during the dehumidification process, so as to avoid the phenomenon of condensation of humid air caused by a large temperature difference between the inside and outside of the cabinet. The above-mentioned dehumidification system in the switch cabinet detects the temperature and humidity conditions in each switch cabinet through a temperature and humidity detection sensor, and then feeds back to the dehumidification system control center, and the control center controls the silica gel rotary dehumidifier to dehumidify, and transmits dry air to each switch cabinet through a branch dry air transmission pipeline.

[0004] However, in actual applications, the branch dry air transmission pipeline cannot be intelligently controlled independently, resulting in the need for dehumidification of one switch cabinet. All switch cabinets need to be dehumidified or can only be manually controlled, otherwise it will lead to a waste of resources. For this reason, we have made an improved design and provided a dehumidification system in the switch cabinet. Utility Model Content

[0005] In view of the above-mentioned deficiencies existing in the prior art, the utility model provides a dehumidification system in a switch cabinet to solve the above-mentioned problems in the background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A dehumidification system for use in a switch cabinet, comprising a silica gel rotary dehumidifier, a dry air collector and distributor, and a temperature and humidity detection sensor for monitoring the temperature and humidity of each switch cabinet, and also comprising a dehumidification system control center for controlling the dehumidification system, wherein the silica gel rotary dehumidifier is connected to the dry air collector and distributor via a dry air main pipeline, and the dry air collector and distributor is connected to each switch cabinet via a plurality of dry air branch pipelines, and each of the dry air branch pipelines is installed with a solenoid valve for controlling the flow of a medium, and the solenoid valve is electrically connected to the dehumidification system control center.

[0008] Furthermore, the dehumidification system control center is a PLC control system, which is connected to the silica gel rotary dehumidifier and the temperature and humidity detection sensor through electrical control lines.

[0009] Furthermore, the dry air collecting and distributing device is a dry air source distributing device.

[0010] Furthermore, the dry air main duct is a PA corrugated pipe with a radius of 100 mm.

[0011] Furthermore, the dry air branch pipe is a PA corrugated pipe with a radius of 40 mm, and the solenoid valve is installed at the connection between the dry air branch pipe and the dry air collecting and distributing device.

[0012] Furthermore, it also includes a monitoring center, and a signal connection is established between the monitoring center and the dehumidification system control center.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] By installing solenoid valves controlled by the dehumidification system control center on each dry air branch pipe, secondary control can be carried out. It can not only control the dehumidification of all switch cabinets as a whole, but also accurately control the dehumidification of each switch cabinet through the solenoid valve, so as to achieve scientific and rational use of resources and transmit all operation records and all data to the monitoring center so that users can fully understand the dehumidification situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a principle block diagram of a dehumidification system in a switch cabinet of the utility model;

[0016] The reference numerals in the drawings of the specification include:

[0017] Silica gel rotary dehumidifier, dry air main pipeline, dry air collector distributor, dry air branch pipeline, solenoid valve, switch cabinet, temperature and humidity detection sensor, dehumidification system control center, monitoring center. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0020] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Embodiment 1:

[0023] like Figure 1 Specifically, the utility model is applied to a dehumidification system in a switch cabinet, comprising a silica gel rotary dehumidifier 1, a dry air collector and distributor 3, and a temperature and humidity detection sensor 7 for monitoring the temperature and humidity of each switch cabinet 6, and also comprising a dehumidification system control center 8 for controlling the dehumidification system, wherein the silica gel rotary dehumidifier 1 is connected to the dry air collector and distributor 3 through a dry air main pipeline 2, and the dry air collector and distributor 3 is connected to each switch cabinet 6 through a plurality of dry air branch pipelines 4, and each dry air branch pipeline 4 is equipped with a solenoid valve 5 for controlling the flow of a medium, and the solenoid valve 5 is electrically connected to the dehumidification system control center 8.

[0024] In the actual implementation process, by installing a solenoid valve 5 controlled by the dehumidification system control center 8 on each dry air branch pipe 4, a secondary control is performed, which can not only control the dehumidification of all switch cabinets 6 as a whole, but also accurately control the dehumidification of each switch cabinet 6 through the solenoid valve 5, thereby achieving scientific and reasonable utilization of resources.

[0025] The dehumidification system control center 8 is a PLC control system, which is connected to the silica gel rotary dehumidifier 1 and the temperature and humidity detection sensor 7 through electrical control lines.

[0026] The dry air collecting and distributing device 3 is a dry air source distributor.

[0027] The dry air main duct 2 is a PA corrugated pipe with a radius of 100 mm.

[0028] The dry air branch pipe 4 is a PA corrugated pipe with a radius of 40 mm. The solenoid valve 5 is installed at the connection between the dry air branch pipe 4 and the dry air collecting and distributing device 3 .

[0029] It also includes a monitoring center 9, and a signal connection is provided between the monitoring center 9 and the dehumidification system control center 8.

[0030] In the actual implementation process, the temperature and humidity conditions of each switch cabinet 6 are monitored by a number of temperature and humidity detection sensors 7, and the monitoring values ​​are transmitted to the dehumidification system control center 8. When a switch cabinet 6 needs to be dehumidified, the instruction is transmitted to the silica gel rotary dehumidifier 1 for dehumidification. When all switch cabinets 6 need to be dehumidified, each solenoid valve 5 is controlled by the dehumidification system control center 8 to dehumidify all switch cabinets 6. When it is monitored that one or some switch cabinets 6 need to be dehumidified, the solenoid valve 5 is opened accordingly to perform separate dehumidification. In actual applications, all operation records and all data are transmitted to the monitoring center 9 so that users can fully understand the dehumidification situation.

[0031] The above are only embodiments of the utility model. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field to which the utility model belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement the scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for the ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A dehumidification system in a switch cabinet, comprising a silica gel rotary dehumidifier (1), a dry air collector and distributor (3), and a temperature and humidity detection sensor (7) for monitoring the temperature and humidity of each switch cabinet (6), and also comprising a dehumidification system control center (8) for controlling the dehumidification system, wherein the silica gel rotary dehumidifier (1) is connected to the dry air collector and distributor (3) via a dry air main pipeline (2), and the dry air collector and distributor (3) is connected to each switch cabinet (6) via a plurality of dry air branch pipelines (4), characterized in that: Each of the dry air branch pipes (4) is installed with a solenoid valve (5) for controlling the flow of a medium, and the solenoid valve (5) is electrically connected to a dehumidification system control center (8).

2. A dehumidification system in a switch cabinet according to claim 1, characterized in that: The dehumidification system control center (8) is a PLC control system, which is connected to the silica gel rotary dehumidifier (1) and the temperature and humidity detection sensor (7) via electrical control lines.

3. A dehumidification system in a switch cabinet as claimed in claim 2, characterized in that: The dry air collecting and distributing device (3) is a dry air source distributor.

4. A dehumidification system in a switch cabinet according to claim 1, characterized in that: The dry air main duct (2) is a PA corrugated tube with a radius of 100 mm.

5. A dehumidification system in a switch cabinet according to claim 1, characterized in that: The dry air branch pipe (4) is a PA corrugated pipe with a radius of 40 mm. The solenoid valve (5) is installed at the connection between the dry air branch pipe (4) and the dry air collecting and distributing device (3).

6. A dehumidification system in a switch cabinet as claimed in claim 5, characterized in that: It also includes a monitoring center (9), and a signal connection is established between the monitoring center (9) and the dehumidification system control center (8).

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