Environment-friendly sealed inflatable switch cabinet

Abstract

The invention discloses an environment-friendly sealed inflatable switch cabinet, which comprises an integrally formed cabinet body and an equipment main body arranged in the cabinet body, the water tank is arranged on one side outside the cabinet body and used for containing water; two cooling mechanisms are arranged between the cabinet bodies, and the two cooling mechanisms are used for cooling the equipment main body in the cabinet body through the water body in the water tank; a first lifter is arranged on the side, facing the water tank, of the cabinet body, is in driving connection with the two cooling mechanisms and is used for driving the two cooling mechanisms to vertically move in the vertical direction; a second lifter and a temperature detector are arranged on the side, facing the cabinet body, of the water tank, the second lifter is in driving connection with the temperature detector, and the second lifter is used for driving the temperature detector to detect temperature data of all preset areas in the cabinet body in the vertical direction. According to the technical scheme, sulfur hexafluoride gas leakage is avoided to the maximum extent from the two aspects of precise cooling and sealing performance improvement.

Description

Technical Field

[0001] The present invention relates to the technical field of gas-filled switch cabinets, and in particular to an environmentally friendly sealed gas-filled switch cabinet. Background Art

[0002] Gas-filled switchgear, with its compact structure, flexible operation, and safety and reliability, is widely used in small secondary substations, switchgear stations, residential areas, and particularly in airports, subways, railways, and other locations with high power requirements. The insulating gas used in gas-filled switchgear is typically sulfur hexafluoride (SF6). Pure SF6 is colorless, odorless, and essentially non-toxic at room temperature. It is chemically stable, exhibits excellent insulation and arc-extinguishing properties, and is widely used in power equipment.

[0003] However, sulfur hexafluoride is one of the six internationally recognized greenhouse gases, with a significant greenhouse effect and a long decay period. Gas leaks from switchgear can have a certain impact on the environment. High concentrations of sulfur hexafluoride can also affect human health. Long-term exposure to high concentrations can cause symptoms such as headaches, difficulty breathing, and nausea. Furthermore, sulfur hexafluoride decomposes at high temperatures to produce toxic substances, such as thionyl fluoride, sulfuryl fluoride, sulfur tetrafluoride, and hydrofluoric acid. These compounds have varying degrees of toxicity. Summary of the Invention

[0004] The main purpose of the present invention is to provide an environmentally friendly sealed gas-filled switch cabinet, aiming to solve the problem of preventing leakage inside the gas-filled switch cabinet.

[0005] To achieve the above object, the technical solution proposed by the present invention is:

[0006] An environmentally friendly sealed and inflatable switchgear comprises an integrally formed cabinet body and an equipment main body arranged in the cabinet body; a water tank is arranged on one side of the cabinet body, and the water tank is used to contain water; two cooling mechanisms are arranged between the cabinet body and the cabinet body, and the two cooling mechanisms are used to cool the equipment main body in the cabinet body through the water in the water tank; a first lifter is arranged on the side of the cabinet body facing the water tank, and the first lifter is respectively driven and connected to the two cooling mechanisms, and the first lifter is used to drive the two cooling mechanisms to move vertically respectively; a second lifter and a thermometer are respectively arranged on the side of the water tank facing the cabinet body, and the second lifter is driven and connected to the thermometer, and the second lifter is used to drive the thermometer vertically to detect temperature data of each preset area in the cabinet body.

[0007] Preferably, the first lifter includes a first slide rail and two first electrically-controlled slides, the first slide rail being vertically arranged on the side of the cabinet facing the water tank; the two first electrically-controlled slides are respectively slidably connected to the first slide rail, one of the first electrically-controlled slides is driven to connect to one of the cooling mechanisms, and the other first electrically-controlled slide is driven to connect to the other cooling mechanism.

[0008] Preferably, the cooling mechanism includes a heat exchange tube, a first pump body and two telescopic hoses, the first pump body is arranged on the heat exchange tube; one end of the two telescopic hoses is respectively connected to the water tank, and the end of one telescopic hose away from the water tank is connected to one end of the heat exchange tube, and the end of the other telescopic hose away from the water tank is connected to the other end of the heat exchange tube; the first electrically controlled slide drives the adjacent heat exchange tubes.

[0009] Preferably, the second lifter includes a second slide rail and a second electrically controlled slide, the second slide rail is vertically arranged on the side of the water tank facing the cabinet; the second electrically controlled slide is slidably connected to the first slide rail, and the second electrically controlled slide is driven and connected to the thermometer; the second electrically controlled slide is used to drive the thermometer to move vertically along the second slide rail, so that the thermometer can detect the temperature data of each area of the cabinet in sequence vertically.

[0010] Preferably, the second slide rail and the second electrically controlled slide seat are both located between the two telescopic hoses.

[0011] Preferably, a circulation mechanism is provided on the top side of the water tank, and the circulation mechanism includes a first circulation pipe, a second circulation pipe, a connecting pipe and a second pump body, the connecting pipe is provided on the top side of the water tank, and the second pump body is provided on the connecting pipe; one end of the first circulation pipe is connected to one end of the connecting pipe, and the first circulation pipe passes through the top side of the water tank away from the end of the connecting pipe, and extends to be provided near the bottom side of the water tank; one end of the second circulation pipe is connected to the other end of the connecting pipe, and the second circulation pipe passes through the top side of the water tank away from the end of the connecting pipe, and extends to be provided near the top side of the water tank; the second pump body is used to drive the water in the water tank to flow back into the water tank through the first circulation pipe, the connecting pipe and the second circulation pipe in sequence.

[0012] Preferably, a cooling mechanism is also provided on the top side of the water tank, and the cooling mechanism includes a liquid storage tank, a cooling pipe, a first electrically controlled valve and a pressure relief mechanism. The liquid storage tank is provided on the top side of the water tank, and the liquid storage tank is used to store liquid nitrogen; the pressure relief mechanism is provided on the side of the water tank facing the cabinet; one end of the cooling pipe is connected to the liquid storage tank through the first electrically controlled valve, and the end of the cooling pipe away from the first electrically controlled valve penetrates into the water tank and is connected to the pressure relief mechanism.

[0013] Preferably, the pressure relief mechanism includes several pressure relief pipes, each of which is arranged vertically in sequence, and each of which has one end away from the cabinet passing through the water tank and connected to the cooling pipe, and each of which has one end away from the cooling pipe being provided with a pressure relief valve.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] The one-piece cabinet can prevent the leakage of sulfur hexafluoride gas; the second lifter adjusts the horizontal height of the temperature detector so that the temperature detector can obtain the temperature data of the cabinet in sequence along the vertical direction; the first lifter adjusts the horizontal height of each cooling mechanism so that each cooling mechanism can cool the designated area, thereby minimizing the leakage of sulfur hexafluoride gas from the two aspects of precise cooling and improved sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 This is a structural diagram of an embodiment of an environmentally friendly sealed gas-filled switchgear according to the present invention;

[0018] Figure 2 It is a structural diagram of the water tank side;

[0019] Figure 3 This is a schematic diagram of the mechanism from the side of the cabinet.

[0020] Description of Figure Numbers:

[0021] 1-cabinet;

[0022] 2-water tank;

[0023] 3-first lifter; 31-first slide rail; 32-first electric control slide;

[0024] 4-cooling mechanism; 41-heat exchange tube; 42-first pump body; 43-telescopic hose;

[0025] 5-second lifter; 51-second slide rail; 52-second electric control slide; 53-temperature detector;

[0026] 6-circulation mechanism; 61-first circulation pipe; 62-second circulation pipe; 63-connecting pipe; 64-second pump body;

[0027] 7-cooling mechanism; 71-liquid storage tank; 72-cooling pipe; 73-first electric control valve; 74-pressure relief pipe; 75-pressure relief valve;

[0028] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0032] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] The present invention provides an environmentally friendly sealed gas-filled switch cabinet.

[0035] like Figures 1 to 3 An environmentally friendly sealed inflatable switchgear shown in the figure includes an integrally formed cabinet body 1 and an equipment main body (not shown in the figure) arranged in the cabinet body 1; a water tank 2 is arranged on one side outside the cabinet body 1, and the water tank 2 is used to contain water; two cooling mechanisms 4 are arranged between the cabinet body 1 and the cabinet body 1, and the two cooling mechanisms 4 are used to cool the equipment main body in the cabinet body 1 through the water in the water tank 2; a first lifter 3 is arranged on the side of the cabinet body 1 facing the water tank 2, and the first lifter 3 drives and connects the two cooling mechanisms 4 respectively, and the first lifter 3 is used to drive the two cooling mechanisms 4 vertically to move vertically respectively; a second lifter 5 and a thermometer 53 are respectively arranged on the side of the water tank 2 facing the cabinet body 1, and the second lifter 5 drives and connects the thermometer 53, and the second lifter 5 is used to drive the thermometer 53 vertically to detect the temperature data of the cabinet body 1.

[0036] The one-piece cabinet 1 can prevent the leakage of sulfur hexafluoride gas; the second lifter 5 adjusts the horizontal height of the thermometer 53 so that the thermometer 53 can obtain the temperature data of the cabinet 1 in sequence along the vertical direction; the first lifter 3 adjusts the horizontal height of each cooling mechanism 4 so that each cooling mechanism 4 can cool the designated area, thereby preventing the leakage of sulfur hexafluoride gas to the greatest extent from the two aspects of precise cooling and improved sealing.

[0037] Specifically, each preset area is located on a side of the cabinet 1 facing the water tank 2, and each preset area is arranged vertically in sequence. Each preset area is manually divided.

[0038] Specifically, the environmentally friendly sealed inflatable switchgear also includes a controller, which is electrically connected to the first lifter 3, the second lifter 5, the temperature detector 53 and the two cooling mechanisms 4 respectively; the controller is used to control the second lifter 5 to drive the temperature detector 53 according to a preset interval, so that the temperature detector 53 obtains the temperature data of each preset area in sequence along the vertical direction; the controller is used to determine whether each temperature data is greater than the operating temperature; when any temperature data is greater than or equal to the operating temperature, the first lifter 3 is controlled to drive the two cooling mechanisms 4 to cool the preset area greater than or equal to the operating temperature; when each temperature data is less than the operating temperature, the two cooling mechanisms 4 are controlled to be closed.

[0039] Specifically, when any temperature data is greater than or equal to the operating temperature, a preset area greater than or equal to the operating temperature is determined as an operating area, and a determination is made as to whether the number of operating areas is greater than one. When the number of operating areas is equal to one, the step of controlling the first lifter 3 to drive the two cooling mechanisms 4 to cool the area greater than the operating temperature is executed. When the number of operating areas is greater than or equal to two, the highest operating area and the lowest operating area are determined, so that the first lifter 3 drives the highest point of the cooling mechanism 4 with a higher level to abut the highest operating area for cooling, and the first lifter 3 drives the lowest point of the cooling mechanism 4 with a lower level to abut the lowest operating area. Due to the size of the cooling mechanism 4 and the cabinet 1, the cooling mechanism 4 can generally cover multiple operating areas for cooling. Therefore, each cooling operation only needs to be close to the highest operating area and the lowest operating area to ensure that most operating areas with temperature data exceeding the operating temperature are covered.

[0040] Specifically, the controller is configured to control the second lifter 5 to drive the temperature detector 53 to detect each preset area at a preset time point. The temperature detector 53 performs fixed-point detection on each preset area, allowing the first lifter 3 to adjust the horizontal height of the two cooling mechanisms 4 in real time to ensure a cooling effect on the cabinet 1.

[0041] Specifically, the preset interval is determined according to the preset area. When the temperature detector 53 is started each time, the temperature detector 53 only detects a preset area once.

[0042] The first lifter 3 includes a first slide rail 31 and two first electrically-controlled slides 32. The first slide rail 31 is vertically arranged on the side of the cabinet 1 facing the water tank 2; the two first electrically-controlled slides 32 are respectively slidably connected to the first slide rail 31, one of the first electrically-controlled slides 32 is driven to connect to one of the cooling mechanisms 4, and the other first electrically-controlled slide 32 is driven to connect to the other cooling mechanism 4.

[0043] The cooling mechanism 4 includes a heat exchange tube 41, a first pump body 42, and two telescopic hoses 43. The first pump body 42 is mounted on the heat exchange tube 41. One end of each telescopic hose 43 is connected to the water tank 2. The end of one telescopic hose 43 facing away from the water tank 2 is connected to one end of the heat exchange tube 41, while the end of the other telescopic hose 43 facing away from the water tank 2 is connected to the other end of the heat exchange tube 41. The first electrically controlled slide 31 drives the adjacent heat exchange tubes 41. Conventional fixed water cooling systems have poor cooling performance in the latter half of the system. This application effectively improves the cooling effect by shortening the length of the heat exchange tube 41 and adjusting its position in real time.

[0044] Specifically, the higher first electrically controlled slide 32 is driven to connect to the highest end of the adjacent heat exchange tube 41, while the lower first electrically controlled slide 32 is driven to connect to the lowest end of the adjacent heat exchange tube 41. The connection positions of the two first electrically controlled slides 32 and the two heat exchange tubes 41 facilitate alignment of the two first electrically controlled slides 32 with the respective work areas.

[0045] Specifically, when both cooling mechanisms 4 are activated, the first electrically controlled slide 32, which is at the higher level, is positioned above the highest working position by a preset distance, while the first electrically controlled slide 32, which is at the lower level, is positioned below the lowest working position by a preset distance. This preset distance is a factory default setting of 10 centimeters and can be modified by the operator via the controller.

[0046] The second lifter 5 includes a second slide rail 51 and a second electrically controlled slide 52. The second slide rail 51 is vertically arranged on the side of the water tank 2 facing the cabinet 1; the second electrically controlled slide 52 is slidably connected to the first slide rail 31, and the second electrically controlled slide 52 is driven to connect to the thermometer 53; the second electrically controlled slide 52 is used to drive the thermometer 53 to move vertically along the second slide rail 51, so that the thermometer 53 detects the temperature data of each area of the cabinet 1 in sequence along the vertical direction.

[0047] The second slide rail 51 and the second electronically controlled slide 52 are both located between the two telescopic hoses 43 .

[0048] Specifically, the telescopic hose 43 is a bellows.

[0049] A circulation mechanism 6 is provided on the top side of the water tank 2. The circulation mechanism 6 includes a first circulation pipe 61, a second circulation pipe 62, a connecting pipe 63, and a second pump body 64. The connecting pipe 63 is provided on the top side of the water tank 2, and the second pump body 64 is provided on the connecting pipe 63. One end of the first circulation pipe 61 is connected to one end of the connecting pipe 63. The end of the first circulation pipe 61 away from the connecting pipe 63 passes through the top side of the water tank 2 and extends to be arranged near the bottom side of the water tank 2. One end of the second circulation pipe 62 is connected to the other end of the connecting pipe 63. The end of the second circulation pipe 62 away from the connecting pipe 63 passes through the top side of the water tank 2 and extends to be arranged near the top side of the water tank 2. The second pump body 64 is used to drive the water in the water tank 2 to flow back into the water tank 2 through the first circulation pipe 61, the connecting pipe 63, and the second circulation pipe 62 in sequence. The provision of the circulation mechanism 6 can effectively increase the flow of water in the water tank 2 and ensure that the water temperature in the water tank 2 remains consistent.

[0050] A cooling mechanism 7 is also provided on the top side of the water tank 2. The cooling mechanism 7 includes a liquid storage tank 71, a cooling pipe 72, a first electrically controlled valve 73, and a pressure relief mechanism. The liquid storage tank 71 is provided on the top side of the water tank 2 and is used to store liquid nitrogen. The pressure relief mechanism is provided on the side of the water tank 2 facing the cabinet 1. One end of the cooling pipe 72 is connected to the liquid storage tank 71 through the first electrically controlled valve 73. The end of the cooling pipe 72 away from the first electrically controlled valve 73 penetrates into the water tank 2 and is connected to the pressure relief mechanism. The liquid nitrogen controls the water temperature in the water tank 2 to ensure that the water cools the cabinet 1 as it passes through the heat exchange tube 41.

[0051] The pressure relief mechanism includes several pressure relief pipes 74, which are arranged vertically in sequence. The end of each pressure relief pipe 74 away from the cabinet 1 passes through the water tank 2 and connects to the cooling pipe 72. Each pressure relief pipe is equipped with a pressure relief valve 75 at the end away from the cooling pipe 72. The vertical arrangement of the pressure relief pipes 74 ensures that the gaseous nitrogen can further cool the cabinet 1, maximizing the utilization rate of the liquid nitrogen.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An environmentally friendly sealed gas-filled switchgear, characterized in that: It includes an integrally formed cabinet body and an equipment main body arranged in the cabinet body; a water tank is arranged on one side of the cabinet body, and the water tank is used to contain water; two cooling mechanisms are arranged between the cabinet body and the cabinet body, and the two cooling mechanisms are used to cool the equipment main body in the cabinet body through the water in the water tank; a first lifter is arranged on the side of the cabinet body facing the water tank, and the first lifter drives and connects the two cooling mechanisms respectively, and the first lifter is used to drive the two cooling mechanisms to move vertically respectively; a second lifter and a thermometer are respectively arranged on the side of the water tank facing the cabinet body, and the second lifter drives and connects the thermometer, and the second lifter is used to drive the thermometer vertically to detect temperature data of each preset area in the cabinet.

2. The environmentally friendly sealed gas-filled switchgear according to claim 1, characterized in that: The first lifter includes a first slide rail and two first electrically-controlled slides, the first slide rail being vertically arranged on the side of the cabinet facing the water tank; the two first electrically-controlled slides are respectively slidably connected to the first slide rail, one of the first electrically-controlled slides is driven to connect to one of the cooling mechanisms, and the other first electrically-controlled slide is driven to connect to the other cooling mechanism.

3. The environmentally friendly sealed gas-filled switchgear according to claim 2, characterized in that: The cooling mechanism includes a heat exchange tube, a first pump body and two telescopic hoses, the first pump body is arranged on the heat exchange tube; one end of the two telescopic hoses is respectively connected to the water tank, one end of the telescopic hose away from the water tank is connected to one end of the heat exchange tube, and the other end of the telescopic hose away from the water tank is connected to the other end of the heat exchange tube; the first electrically controlled slide drives the adjacent heat exchange tubes.

4. The environmentally friendly sealed gas-filled switchgear according to claim 3, characterized in that: The second lifter includes a second slide rail and a second electrically controlled slide, the second slide rail is vertically arranged on the side of the water tank facing the cabinet; the second electrically controlled slide is slidably connected to the first slide rail, and the second electrically controlled slide is driven and connected to the thermometer; the second electrically controlled slide is used to drive the thermometer to move vertically along the second slide rail, so that the thermometer can detect the temperature data of each area of the cabinet in sequence along the vertical direction.

5. The environmentally friendly sealed gas-filled switchgear according to claim 4, characterized in that: The second slide rail and the second electrically controlled slide seat are both located between the two telescopic hoses.

6. An environmentally friendly sealed gas-filled switchgear according to any one of claims 1 to 5, characterized in that: A circulation mechanism is provided on the top side of the water tank, and the circulation mechanism includes a first circulation pipe, a second circulation pipe, a connecting pipe and a second pump body. The connecting pipe is provided on the top side of the water tank, and the second pump body is provided on the connecting pipe; one end of the first circulation pipe is connected to one end of the connecting pipe, and the first circulation pipe passes through the top side of the water tank away from the end of the connecting pipe and extends to be arranged near the bottom side of the water tank; one end of the second circulation pipe is connected to the other end of the connecting pipe, and the second circulation pipe passes through the top side of the water tank away from the end of the connecting pipe and extends to be arranged near the top side of the water tank; the second pump body is used to drive the water in the water tank to flow back into the water tank through the first circulation pipe, the connecting pipe and the second circulation pipe in sequence.

7. An environmentally friendly sealed gas-filled switchgear according to any one of claims 1 to 5, characterized in that: A cooling mechanism is also provided on the top side of the water tank, and the cooling mechanism includes a liquid storage tank, a cooling pipe, a first electrically controlled valve and a pressure relief mechanism. The liquid storage tank is provided on the top side of the water tank and is used to store liquid nitrogen; the pressure relief mechanism is provided on the side of the water tank facing the cabinet; one end of the cooling pipe is connected to the liquid storage tank through the first electrically controlled valve, and the end of the cooling pipe away from the first electrically controlled valve penetrates into the water tank and is connected to the pressure relief mechanism.

8. The environmentally friendly sealed gas-filled switchgear according to claim 7, characterized in that: The pressure relief mechanism includes a plurality of pressure relief pipes, each of which is arranged vertically in sequence. One end of each pressure relief pipe away from the cabinet passes through the water tank and is connected to the cooling pipe. A pressure relief valve is provided at one end of each pressure relief pipe away from the cooling pipe.

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