Stable high-voltage power distribution equipment monitoring device

Abstract

The utility model relates to the technical field of power distribution equipment monitoring, and discloses a stable high-voltage power distribution equipment monitoring device which comprises a detection module used for detecting gas components in a high-voltage cabinet body and an air extraction mechanism capable of compensating air pressure in the cabinet body when gas in the cabinet body is extracted for detection. The detection module is connected with an air pressure detection unit used for detecting air pressure in the high-pressure cabinet body, the air exhaust mechanism is connected with the detection module through an air delivery pipe, the detection module comprises a controller, and the controller is electrically connected with an air sensor used for detecting and analyzing air components. According to the high-voltage power distribution cabinet, the air pressure detection unit is arranged on the high-voltage power distribution cabinet and is matched with the air exhaust mechanism for use, so that air in the high-voltage power distribution cabinet does not need to be frequently detected, and meanwhile, the problem of unstable pressure caused by air loss in the high-voltage power distribution cabinet can be solved when air exhaust component detection is carried out.

Description

Technical Field

[0001] The present application relates to the technical field of power distribution equipment monitoring, and in particular to a stable high-voltage power distribution equipment monitoring device. Background Art

[0002] In the operation and maintenance of the distribution network, implementing status detection on the equipment is the best way to ensure the safe and stable operation of the equipment and improve the reliability of power supply. The monitoring methods for the distribution network include manual inspection, infrared monitoring, ultraviolet radiation monitoring, gas composition monitoring and other monitoring methods.

[0003] In the prior art, the principle is used that when a high-voltage switch cabinet fails, the gas composition inside it will change accordingly. A vacuum pump is used to extract the gas inside the high-voltage switch cabinet, and the fault of the high-voltage switch cabinet is determined by analyzing the gas composition inside the high-voltage switch cabinet.

[0004] Regarding the above-mentioned related technologies, the inventor believes that in order to monitor the filling in the cabinet in real time, frequent gas detection is required. However, since the high-voltage cabinet is in a sealed state, frequent extraction will not only cause unstable air pressure in the cabinet, but also affect the normal operation of electrical components inside the high-voltage cabinet, and there are certain defects.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to solve the problem that frequent extraction of gas from a high-voltage cabinet for monitoring and testing leads to unstable air pressure inside the cabinet and affects equipment operation, the present application provides a stable high-voltage power distribution equipment monitoring device that can extract gas from the cabinet for component detection while simultaneously delivering an equal volume of external gas into the high-voltage cabinet to maintain stable air pressure.

[0007] The present application provides a stable high-voltage power distribution equipment monitoring device, which adopts the following technical solution: a stable high-voltage power distribution equipment monitoring device, comprising a detection module for detecting gas composition inside a high-voltage cabinet and an exhaust mechanism capable of compensating for the air pressure inside the cabinet when extracting gas from the cabinet for detection, the detection module being connected to an air pressure detection unit for detecting the air pressure inside the high-voltage cabinet, and the exhaust mechanism and the detection module being connected via a gas pipe.

[0008] Preferably, the detection module includes a controller, and a gas sensor for detecting and analyzing gas components is electrically connected to the controller.

[0009] Preferably, the air extraction mechanism includes a shell, an active cavity and two air storage cavities are provided inside the shell, a pushing frame with two pins is provided in the active cavity, a piston is movably provided in each of the two air storage cavities, the two pins of the pushing frame are respectively connected to the corresponding pistons, one end of the two air storage cavities are connected to an air inlet pipe, one side of an air storage cavity is connected to an exhaust pipe 1, the exhaust pipe 1 is connected to the detection module through an air supply pipe, one side of the other air storage cavity is provided with a filter, the filter is connected to the exhaust pipe 2, an electric push rod is provided on the outer wall of one side of the shell, and the output end of the electric push rod is connected to the pushing frame.

[0010] Preferably, the filter includes a guide sleeve fixedly arranged on one side of the air storage chamber and open at both ends, the guide sleeve is fixed to one side of the outer shell by bolts, one end of the guide sleeve is connected to the second exhaust pipe, and the other end of the guide sleeve is movably provided with a filter screen, the end surface of the filter screen extends into the interior of the air storage chamber, and the surface of one end of the filter screen close to the interior of the air storage chamber is arranged in a slope shape, four return springs are symmetrically arranged on one side of the filter screen, and one end of the four return springs is fixed to the inner wall of the guide sleeve.

[0011] Preferably, one-way valves are provided on the two intake pipes, exhaust pipe one and exhaust pipe two.

[0012] Preferably, the air pressure detection unit comprises a connecting pipe arranged in the high-voltage cabinet and between the detection module, and a pressure gauge is arranged on the connecting pipe.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. By arranging an air pressure detection unit on the high-voltage distribution cabinet and using it in conjunction with an air extraction mechanism, the air pressure detection unit is used to detect the air pressure change inside the high-voltage cabinet. When the air pressure is abnormal, part of the gas inside the high-voltage cabinet is extracted through the air extraction mechanism for gas composition detection to determine whether a fault occurs inside the high-voltage cabinet, and the corresponding volume of gas can be compensated from the outside. Compared with the prior art, there is no need to frequently detect the gas inside the high-voltage cabinet. At the same time, when performing gas extraction component detection, the problem of unstable pressure inside the high-voltage cabinet caused by gas loss can be solved;

[0015] 2. By installing a filter between the second exhaust pipe and the air storage chamber, when the external gas is drawn into the high-pressure cabinet, it can be filtered through the filter to reduce the dust content. At the same time, during the movement of the piston, the filter can be driven to retract by the piston, and when the piston reciprocates, the return spring allows the filter to jump slightly, shaking off the dust on the filter surface and delaying the filter maintenance cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of a cross-sectional structure of a housing of an embodiment of the application;

[0017] Figure 2 It is a schematic diagram of the external structure of an embodiment of the application;

[0018] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the filter in the application embodiment.

[0019] Explanation of the accompanying drawings: 1. Detection module; 101. Controller; 102. Gas sensor; 2. Pumping mechanism; 201. Housing; 202. Active cavity; 203. Gas storage cavity; 204. Push frame; 205. Piston; 206. Inlet pipe; 207. Exhaust pipe 1; 208. Filter; 2081. Guide sleeve; 2082. Filter net; 2083. Reset spring; 209. Exhaust pipe 2; 3. Air pressure detection unit; 4. Gas supply pipe; 5. Electric push rod. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-3 This application is described in further detail.

[0021] The present application embodiment discloses a stable high-voltage power distribution equipment monitoring device. Figure 1-Figure 3 A stable high-voltage power distribution equipment monitoring device includes a detection module 1 for detecting gas composition inside a high-voltage cabinet and an exhaust mechanism 2 that can compensate for the air pressure inside the cabinet when extracting gas from the cabinet for detection. The detection module 1 is connected to an air pressure detection unit 3 for detecting the air pressure inside the high-voltage cabinet. The air pressure detection unit 3 includes a connecting pipe installed between the high-voltage cabinet and the detection module 1, and a pressure gauge is installed on the connecting pipe. The exhaust mechanism 2 is connected to the detection module 1 through a gas pipe 4.

[0022] By adopting the above-mentioned technical scheme, the air pressure detection unit 3 can detect the pressure inside the high-voltage cabinet. When the pressure is abnormal, the exhaust mechanism 2 works to draw part of the gas inside the high-voltage cabinet into the detection module 1 for detection. By detecting the gas composition, it is determined whether there is a fault inside the high-voltage cabinet. In order to avoid a large change in the internal pressure of the cabinet during the extraction of gas inside the high-voltage cabinet, the exhaust mechanism 2 can also draw the same volume of gas from the external purified air into the cabinet for compensation. There is no need to frequently detect the gas inside the high-voltage cabinet. At the same time, when detecting the gas extraction component, the problem of unstable pressure inside the high-voltage cabinet caused by gas loss can be solved.

[0023] Reference Figure 2 The detection module 1 includes a controller 101, and the controller 101 is electrically connected to a gas sensor 102 for detecting and analyzing gas components.

[0024] By adopting the above technical solution, the gas sensor 102 can detect the components in the gas extracted from the outside of the cabinet and transmit the analysis data to the controller 101 for analysis.

[0025] Reference Figure 1 The air extraction mechanism 2 includes a shell 201, and an active chamber 202 and two air storage chambers 203 are provided inside the shell 201. A push frame 204 with two pins is installed in the active chamber 202. A piston 205 is movably installed in each of the two air storage chambers 203. The two pins of the push frame 204 are respectively connected to the corresponding pistons 205. One end of the two air storage chambers 203 is connected to an air inlet pipe 206. One side of one air storage chamber 203 is connected to an exhaust pipe 207. The exhaust pipe 207 is connected to the detection module 1 through an air supply pipe 4. A filter 208 is installed on one side of the other air storage chamber 203, and an exhaust pipe 209 is connected to the filter 208. An electric push rod 5 is installed on the outer wall of one side of the outer shell 201, and the output end of the electric push rod 5 is connected to the push frame 204. One-way valves are installed on the two air inlet pipes 206, exhaust pipe 1 207 and exhaust pipe 2 209. The conduction direction of the two air inlet pipes 206 is from the outside of the air storage chamber 203 to the inside of the air storage chamber 203, and the conduction direction of the exhaust pipe 1 207 and the exhaust pipe 2 209 is from the inside of the air storage chamber 203 to the outside.

[0026] By adopting the above technical solution, when the air pressure inside the high-voltage cabinet is abnormal, one air intake pipe 206 is connected to the inside of the high-voltage cabinet, and the other air intake pipe 206 is connected to the outside air. The push rod 5 drives the push frame 204 to move, so that the push frame 204 can push the two pistons 205 to move in the air storage chamber 203, so that the air intake pipe 206 connected to the high-voltage cabinet can extract the gas in the high-voltage cabinet and send it to the gas sensor 102 in the detection module 1 for detection. At the same time, the other air intake pipe 206 can draw outside air into the high-voltage cabinet to compensate for the air pressure change, so as to keep the air pressure inside the high-voltage cabinet as stable as possible.

[0027] Reference Figure 1-Figure 3 The filter 208 includes a guide sleeve 2081 fixedly mounted on one side of the air storage chamber 203 and open at both ends. The guide sleeve 2081 is fixedly mounted on one side of the housing 201 by bolts. One end of the guide sleeve 2081 is connected to the exhaust pipe 209. A filter screen 2082 is movably mounted on the other end of the guide sleeve 2081. The end surface of the filter screen 2082 extends into the interior of the air storage chamber 203. The surface of one end of the filter screen 2082 close to the interior of the air storage chamber 203 is mounted in a slope shape. Four return springs 2083 are symmetrically mounted on one side of the filter screen 2082. One end of each of the four return springs 2083 is fixedly connected to the inner wall of the guide sleeve 2081.

[0028] By adopting the above-mentioned technical scheme, during the movement of the piston 205, the end face of the piston 205 will abut against the sloped end face of the filter 2082, so that the filter 2082 moves outward along the guide sleeve 2081, causing the filter 2082 to retract, and the return spring 2083 is compressed. When the piston 205 retracts, the end face limit of the filter 2082 is released. At this time, the return spring 2083 will instantly pop the filter 2082 open, causing the filter 2082 to bounce, thereby shaking off the dust attached to the surface of the filter 2082, thereby extending the maintenance time of the filter 2082.

[0029] The implementation principle of a stable high-voltage power distribution equipment monitoring device in the embodiment of the present application is as follows: the pressure change inside the high-voltage cabinet is detected in real time by a pressure gauge. When the air pressure inside the high-voltage cabinet is abnormal, one air intake pipe 206 is connected to the inside of the high-voltage cabinet, and the other air intake pipe 206 is connected to the outside air. The push frame 204 is driven to move by the electric push rod 5, so that the push frame 204 can push the two pistons 205 to move in the air storage chamber 203, so that the air intake pipe 206 connected to the high-voltage cabinet can extract the gas in the high-voltage cabinet and send it to the gas sensor 102 in the detection module 1 for detection. At the same time, the other air intake pipe 206 can draw outside air into the gas storage chamber 203. The high-pressure cabinet compensates for the air pressure change and keeps the air pressure inside the high-pressure cabinet as stable as possible. During the movement of the piston 205, the end face of the piston 205 will abut against the sloped end face of the filter 2082, causing the filter 2082 to move outward along the guide sleeve 2081, causing the filter 2082 to retract, and the return spring 2083 to be compressed. When the piston 205 retracts, the end face limit of the filter 2082 is released. At this time, the return spring 2083 will instantly pop the filter 2082 open, causing the filter 2082 to bounce, thereby shaking off the dust attached to the surface of the filter 2082 and extending the maintenance time of the filter 2082.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stable high-voltage power distribution equipment monitoring device, characterized in that: It comprises a detection module (1) for detecting gas composition inside a high-voltage cabinet and a gas extraction mechanism (2) capable of compensating the gas pressure inside the cabinet when extracting gas inside the cabinet for detection, the detection module (1) being connected to a gas pressure detection unit (3) for detecting the gas pressure inside the high-voltage cabinet, and the gas extraction mechanism (2) and the detection module (1) being connected via a gas transmission pipe (4); The detection module (1) comprises a controller (101), and the controller (101) is electrically connected to a gas sensor (102) for detecting and analyzing gas components; The air extraction mechanism (2) comprises a shell (201), wherein a movable chamber (202) and two air storage chambers (203) are provided inside the shell (201), a push frame (204) with two pins is provided inside the movable chamber (202), a piston (205) is movably provided inside each of the two air storage chambers (203), the two pins of the push frame (204) are respectively connected to the corresponding pistons (205), and one end of each of the two air storage chambers (203) is connected to an air intake pipe ( 206), one side of an air storage cavity (203) is connected to an exhaust pipe 1 (207), the exhaust pipe 1 (207) is connected to the detection module (1) via an air supply pipe (4), one side of another air storage cavity (203) is provided with a filter (208), the filter (208) is connected to an exhaust pipe 2 (209), an electric push rod (5) is provided on an outer wall of one side of the housing (201), and the output end of the electric push rod (5) is connected to the push frame (204); The filter (208) comprises a guide sleeve (2081) fixedly arranged on one side of the air storage chamber (203) and open at both ends. The guide sleeve (2081) is fixedly arranged on one side of the housing (201) by bolts. One end of the guide sleeve (2081) is connected to the second exhaust pipe (209). The other end of the guide sleeve (2081) is movably provided with a filter screen (2082). The end surface of the filter screen (2082) extends into the interior of the air storage chamber (203). The surface of one end of the filter screen (2082) close to the interior of the air storage chamber (203) is arranged in a slope shape. Four return springs (2083) are symmetrically arranged on one side of the filter screen (2082). One end of each of the four return springs (2083) is fixedly connected to the inner wall of the guide sleeve (2081). The two air inlet pipes (206), the first exhaust pipe (207) and the second exhaust pipe (209) are all provided with a one-way valve; The air pressure detection unit (3) comprises a connecting pipe arranged between the high-voltage cabinet and the detection module (1), and a pressure gauge is arranged on the connecting pipe.

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