Gas chamber structure of environment-friendly gas insulation switch cabinet

Abstract

The utility model relates to the technical field of gas insulated switch cabinets, and discloses a gas chamber structure of an environment-friendly gas insulated switch cabinet, which comprises a cabinet body, a cabinet door is mounted on the front side of the cabinet body, a gas chamber and a nitrogen storage chamber are arranged in the cabinet body, a vacuum pump is mounted in the nitrogen storage chamber, a filter cover is mounted on one side wall of the gas chamber, and the filter cover is mounted on the other side wall of the gas chamber. And a filter element is arranged in the filter cover. The interior of the cabinet body is divided into a gas chamber and a nitrogen storage chamber, nitrogen in the gas chamber is pumped into the nitrogen storage chamber through a vacuum pump, a filter cover is installed on one side of the inner wall of the gas chamber, and a filter element is arranged in the filter cover. The first electromagnetic valve on the inner side of the filter cover and the second electromagnetic valve at the inner end of the gas inlet pipe on one side of the filter cover are opened through the control unit, then the gas sucking pump is started, gas is sucked through the gas inlet pipe and sucked through the gas sucking pump, and in the process that the gas sucking pump sucks out nitrogen, the nitrogen can be adsorbed and filtered through the filter element.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-insulated switch cabinets, in particular to a gas chamber structure of an environmentally friendly gas-insulated switch cabinet. Background Art

[0002] The gas chamber structure of the environmentally friendly gas-insulated switchgear truly embodies the effective use of resources and its friendliness to the environment.

[0003] In environmentally friendly gas-insulated switchgear, the cabinet body serves as the basis of the gas chamber structure and is usually in the shape of a rectangular parallelepiped. It has sufficient strength and sealing to ensure that the internal gas does not leak. The cabinet door is installed in the front of the cabinet body and is connected to the side of the cabinet body by hinges or other means for easy opening and closing for equipment maintenance or inspection. The interior of the cabinet body is divided into different areas by partitions, and the slots are mainly divided into two cavity parts: the air chamber and the nitrogen storage chamber. The air chamber is located in the upper part of the cabinet body and is used to accommodate electrical equipment. It is insulated by a specific gas (such as nitrogen or a mixed gas). The nitrogen storage chamber is located in the lower part of the cabinet body and is used to store nitrogen to ensure that nitrogen can be quickly supplied to the gas chamber when needed.

[0004] However, when the vacuum pump pumps nitrogen from the air chamber to the nitrogen storage room, some nitrogen may remain in the chamber due to factors such as air pressure and residual gas in the pipeline. After the cabinet door is opened, the nitrogen escapes and is absorbed by people, leading to insufficient oxygen intake and symptoms of respiratory distress, such as chest tightness, shortness of breath, and difficulty breathing. In severe cases, mental symptoms such as irritability, excessive excitement, and mental confusion may occur. Therefore, those skilled in the art have provided an air chamber structure for an environmentally friendly gas-insulated switchgear to address the problems raised in the above-mentioned background art. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the deficiencies in the prior art, the utility model provides an air chamber structure for an environmentally friendly gas-insulated switchgear to solve the problem that when a vacuum pump pumps nitrogen in the air chamber to a nitrogen storage chamber, nitrogen will remain in the air chamber due to factors such as air pressure and residual gas in the pipeline. The residual nitrogen will be released and absorbed by people, resulting in insufficient oxygen inhalation, leading to symptoms of shortness of breath, mental confusion, and other problems.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an air chamber structure of an environmentally friendly gas-insulated switchgear, comprising a cabinet body, a cabinet door installed on the front side of the cabinet body, an air chamber and a nitrogen storage chamber inside the cabinet body, a vacuum pump installed in the nitrogen storage chamber, a filter cover installed on one side wall of the air chamber, a filter element provided in the filter cover, a first solenoid valve installed on the inner side of the filter cover, an air pump connected to the outer side of the filter cover, an air inlet pipe provided on the rear side of the filter cover, the air inlet pipe passing through the inner wall of the air chamber, and a second solenoid valve installed on the inner side of the air inlet pipe.

[0009] Preferably, the gas chamber is located on the upper side of the nitrogen storage chamber.

[0010] Preferably, the upper pipe of the vacuum pump passes through the upper side wall of the nitrogen storage chamber, and the nitrogen in the gas chamber is pumped into the nitrogen storage chamber by the vacuum pump.

[0011] Preferably, a nitrogen charging port is installed on the front side wall of the nitrogen storage chamber to replenish nitrogen when the nitrogen storage chamber is insufficient.

[0012] Preferably, a control unit is installed on the upper side of the cabinet, and the control unit is fixedly installed on the upper side wall of the cabinet. The opening and closing of the first solenoid valve and the second solenoid valve can be controlled by the control unit.

[0013] Preferably, an air pressure detection unit is provided on one side of the control unit, and a gas detection unit is provided on one side of the air pressure detection unit, and the detection ends of the gas detection unit and the air pressure detection unit are both inserted into the air chamber, wherein the gas detection unit can detect the nitrogen content in the air chamber, and the air pressure detection unit can detect the air pressure in the air chamber.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the present invention provides an environmentally friendly gas-insulated switchgear air chamber structure, which has the following beneficial effects:

[0016] By design, the cabinet body is divided into an air chamber and a nitrogen storage chamber. Before opening the cabinet door, the nitrogen in the air chamber is pumped into the nitrogen storage chamber by a vacuum pump, and then the nitrogen content in the air chamber is detected by a gas detection unit, and the air pressure in the air chamber is detected by an air pressure detection unit. At the same time, a filter cover is installed on one side of the inner wall of the air chamber, and a filter element is placed in the filter cover. The filter element is made of activated carbon adsorption material. When the gas detection unit detects that there is still nitrogen remaining in the air chamber, the first solenoid valve on the inside of the filter cover and the second solenoid valve at the inner end of the air inlet pipe on one side of the filter cover are opened by the control unit, and then the vacuum pump is started, and air is taken in from the air inlet pipe, and the vacuum pump exhausts air. In the process of the vacuum pump extracting nitrogen, the nitrogen can be adsorbed and filtered through the filter element to avoid emission hazards. The air chamber structure in the device can effectively reduce the hazards caused by residual nitrogen in the air chamber and avoid inhalation hazards caused by leakage of residual nitrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the gas chamber structure of an environmentally friendly gas-insulated switchgear provided in an embodiment of the present application.

[0018] Figure 2 This is a structural schematic diagram of a vacuum pump in a gas chamber structure of an environmentally friendly gas-insulated switchgear provided in an embodiment of the present application.

[0019] Figure 3 This is a structural schematic diagram of an air extraction pump in an air chamber structure of an environmentally friendly gas-insulated switchgear provided in an embodiment of the present application.

[0020] Figure 4 This is a structural schematic diagram of a filter element in an air chamber structure of an environmentally friendly gas-insulated switchgear provided in an embodiment of the present application.

[0021] In the figure: 1. Cabinet body; 2. Cabinet door; 3. Gas detection unit; 4. Air pressure detection unit; 5. Control unit; 6. Air chamber; 7. Nitrogen storage chamber; 8. Vacuum pump; 9. Nitrogen filling port; 10. Filter cover; 11. Filter element; 12. First solenoid valve; 13. Air pump; 14. Inlet pipe; 15. Second solenoid valve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides a technical solution, an air chamber structure of an environmentally friendly gas-insulated switchgear, please refer to Figure 1 、 Figure 2 、 Figure 3 , including a cabinet body 1, a cabinet door 2 is installed on the front side of the cabinet body 1, and the cabinet body 1 includes an air chamber 6 and a nitrogen storage chamber 7. The air chamber 6 is located on the upper side of the nitrogen storage chamber 7, and a vacuum pump 8 is installed in the nitrogen storage chamber 7. The upper pipe of the vacuum pump 8 passes through the upper side wall of the nitrogen storage chamber 7. The nitrogen in the air chamber 6 is pumped into the nitrogen storage chamber 7 by the vacuum pump 8. The front side wall of the nitrogen storage chamber 7 is installed with a nitrogen charging port 9 to replenish the nitrogen in the nitrogen storage chamber 7 when it is insufficient.

[0024] See also Figure 1 、 Figure 2 、 Figure 4 A filter cover 10 is installed on one side wall of the air chamber 6, a filter element 11 is provided in the filter cover 10, a first solenoid valve 12 is installed on the inner side of the filter cover 10, an air pump 13 is connected to the outer side of the filter cover 10, an air intake pipe 14 is provided on the rear side of the filter cover 10, the air intake pipe 14 passes through the inner wall of the air chamber 6, a second solenoid valve 15 is installed on the inner side of the air intake pipe 14, a control unit 5 is installed on the upper side of the cabinet 1, the control unit 5 is fixedly installed on the upper side wall of the cabinet 1, and the opening and closing of the first solenoid valve 12 and the second solenoid valve 15 can be controlled by the control unit 5, an air pressure detection unit 4 is provided on one side of the control unit 5, a gas detection unit 3 is provided on one side of the air pressure detection unit 4, the detection ends of the gas detection unit 3 and the air pressure detection unit 4 are both inserted into the air chamber 6, wherein the gas detection unit 3 can detect the nitrogen content in the air chamber 6, and the air pressure detection unit 4 can detect the air pressure in the air chamber 6, please refer to Figure 2 、 Figure 3 、 Figure 4 When the control unit 5 opens the first solenoid valve 12 inside the filter cover 10 and the second solenoid valve 15 at the inner end of the air inlet pipe 14 on one side of the filter cover 10, the air pump 13 is started, air is taken in from the air inlet pipe 14, and the air pump 13 exhausts air. In the process of the air pump 13 extracting nitrogen, the nitrogen can be adsorbed and filtered through the filter element 11 to avoid emission hazards.

[0025] The environmentally friendly gas-insulated switchgear in the present invention is composed of a cabinet body 1 and a cabinet door 2. The cabinet body 1 is sealed and closed with the cabinet door 2 by a hinge, and the cabinet body 1 is divided into an air chamber 6 and a nitrogen storage chamber 7. A vacuum pump 8 is provided in the nitrogen storage chamber 7. The upper pipe of the vacuum pump 8 passes through the upper side wall of the nitrogen storage chamber 7 and is connected to the air chamber 6. A nitrogen charging port 9 is provided on the front side of the nitrogen storage chamber 7 to replenish the nitrogen in the nitrogen storage chamber 7 when the nitrogen is insufficient.

[0026] Before opening the cabinet door 2, the nitrogen in the air chamber 6 is pumped into the nitrogen storage chamber 7 by the vacuum pump 8, and then the nitrogen content in the air chamber 6 is detected by the gas detection unit 3, and the air pressure in the air chamber 6 is detected by the air pressure detection unit 4. At the same time, a filter cover 10 is installed on one side of the inner wall of the air chamber 6, and a filter element 11 is placed in the filter cover 10. The filter element 11 is made of activated carbon adsorption material. When the gas detection unit 3 detects that there is still nitrogen remaining in the air chamber 6, the first solenoid valve 12 on the inside of the filter cover 10 and the second solenoid valve 15 at the inner end of the air inlet pipe 14 on one side of the filter cover 10 are opened by the control unit 5, and then the air extraction pump 13 is started, and air is introduced from the air inlet pipe 14. The air extraction pump 13 extracts air. In the process of extracting nitrogen by the air extraction pump 13, the nitrogen can be adsorbed and filtered through the filter element 11 to avoid emission hazards;

[0027] In the air chamber structure, the filter cover 10 and the filter element 11 in the air chamber 6 can effectively reduce the harm caused by residual nitrogen in the air chamber 6 and avoid the inhalation harm caused by leakage of residual nitrogen.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0029] In this document, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 elements or the interaction relationship between two elements. Unless otherwise clearly specified, ordinary technicians in this field can understand the specific meanings of the above terms in this utility model according to specific circumstances.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air chamber structure of an environmentally friendly gas-insulated switchgear, comprising a cabinet body (1), characterized in that: The cabinet (1) is provided with a cabinet door (2) on the front side. The cabinet (1) includes an air chamber (6) and a nitrogen storage chamber (7). A vacuum pump (8) is provided in the nitrogen storage chamber (7). A filter cover (10) is provided on one side wall of the air chamber (6). A filter element (11) is provided in the filter cover (10). A first solenoid valve (12) is provided on the inner side of the filter cover (10). An air pump (13) is connected to the outer side of the filter cover (10). An air inlet pipe (14) is provided on the rear side of the filter cover (10). The air inlet pipe (14) passes through the inner wall of the air chamber (6). A second solenoid valve (15) is provided on the inner side of the air inlet pipe (14). A control unit (5) is provided on the upper side of the cabinet (1). An air pressure detection unit (4) is provided on one side of the control unit (5). A gas detection unit (3) is provided on one side of the air pressure detection unit (4).

2. The air chamber structure of an environmentally friendly gas-insulated switchgear according to claim 1, characterized in that: The gas chamber (6) is located on the upper side of the nitrogen storage chamber (7).

3. The air chamber structure of an environmentally friendly gas-insulated switchgear according to claim 1, characterized in that: The upper pipeline of the vacuum pump (8) passes through the upper side wall of the nitrogen storage chamber (7).

4. The air chamber structure of an environmentally friendly gas-insulated switchgear according to claim 1, characterized in that: A nitrogen filling port (9) is installed on the front side wall of the nitrogen storage chamber (7).

5. The air chamber structure of an environmentally friendly gas-insulated switchgear according to claim 1, characterized in that: The control unit (5) is fixedly mounted on the upper side wall of the cabinet (1).

6. The air chamber structure of an environmentally friendly gas-insulated switchgear according to claim 1, characterized in that: The detection ends of the gas detection unit (3) and the air pressure detection unit (4) are both inserted into the air chamber (6).

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