Transformer oil extraction detection device

Abstract

The utility model provides a transformer oil extraction detection device, which relates to the technical field of transformers and comprises an integral structure and a discharging structure, and the discharging structure is positioned on the outer surface of one side of the integral structure and close to the bottom. The whole structure comprises a transparent sampling bottle, a sealing groove is formed in the center of the top of the transparent sampling bottle, and a first sealing ring is connected to the center of the inner surface wall of the sealing groove in a sliding mode. An oil sample in a transformer oil tank can be pumped into the transparent sampling bottle, a first sealing ring is arranged at the joint of the liquid inlet pipe and the transparent sampling bottle, and the first sealing ring can be in tight contact with the inner wall of a sealing groove through mutual matching of a first bolt and a threaded hole, so that the sealing performance of the joint can be improved, and the sealing effect is improved. The leakage of the oil sample is prevented, and damp gas in the air is prevented from entering the oil sample or the gas in the oil sample is prevented from escaping.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer oil extraction detection device. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core. Its main functions include voltage conversion, current conversion, impedance conversion, isolation, and voltage stabilization.

[0003] During the maintenance of transformers, most of the time, a gas chromatograph is used to analyze the gas and content of the insulating oil sample in the transformer to determine the nature and severity of potential faults inside the transformer. An oil sampling detection device is required in the sampling process. When the existing technology is in operation, the oil sample is exposed to the air for a long time, which causes the humid gas in the air to easily penetrate into the sample, resulting in large errors in the subsequent analysis structure, which is easy to cause misjudgment and affect the safe operation of the equipment. Therefore, we propose a transformer oil sampling detection device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that due to the long-term exposure of oil samples to the air, moist gas in the air can easily penetrate into the sample, which in turn leads to large errors in the subsequent analysis structure, easily causes misjudgment, and affects the safe operation of the equipment. A transformer oil sampling and detection device is proposed to solve the problem in the prior art that due to the long-term exposure of oil samples to the air, moist gas in the air can easily penetrate into the sample, which in turn leads to large errors in the subsequent analysis structure, easily causes misjudgment, and affects the safe operation of the equipment.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a transformer oil extraction and detection device, comprising an overall structure and a discharge structure, wherein the discharge structure is located on one side of the overall structure, near the bottom;

[0006] The overall structure includes a transparent sampling bottle, a sealing groove is opened at the center of the top of the transparent sampling bottle, a first sealing ring is slidably connected to the center of the inner wall of the sealing groove, a liquid inlet pipe is penetrated through the inner surface of the first sealing ring, first bolts are threadedly penetrated at both sides of the top of the transparent sampling bottle, a bracket is slidably connected to one side of the top of the transparent sampling bottle, an electric pump is fixedly installed at the center of the top of the bracket, a connecting pipe is penetrated at the centers of the outer surfaces of both sides of the electric pump, and second bolts are threadedly penetrated at the front and rear positions of the top of the bracket.

[0007] Preferably, a threaded hole is opened on the top of the transparent sampling bottle at the position of the first bolt, the inner wall of the threaded hole is threadedly connected to the outer surface of the first bolt, and the bottom end face thread of the first bolt passes through the sealing groove and the inner surface of the transparent sampling bottle.

[0008] Preferably, a pressure gauge is fixedly mounted on the outer surface of the connecting tube, the interior of the connecting tube is connected to the interior of the liquid inlet tube, and the bottom end surface thread of the second bolt passes through the inner surface of the transparent sampling bottle.

[0009] Preferably, a non-slip pad is fixedly connected to the center of the bottom of the transparent sampling bottle, a handle is fixedly connected to the other side of the outer surface of the transparent sampling bottle, and a scale line is provided at the center of the front outer surface of the transparent sampling bottle.

[0010] Preferably, the inner surface of the connecting pipe is slidably connected to a high-efficiency filter screen, and one side of the outer surface of the high-efficiency filter screen is slidably connected to a rubber hose. A third bolt is threaded through the front and rear outer surfaces of the rubber hose, and a first stop valve is fixedly installed on the outer surface of the rubber hose.

[0011] Preferably, a second sealing ring is fixedly connected to the center of the outer surface of the high-efficiency filter, the outer surface of the second sealing ring is slidably connected to the outer surface of the rubber hose and the connecting pipe, and the outer surface thread of the third bolt passes through the outer surface of the second sealing ring and the connecting pipe.

[0012] Preferably, the discharge structure includes a liquid outlet pipe, a second stop valve is fixedly installed at the top center of the liquid outlet pipe, and the interior of the liquid outlet pipe is connected to the interior of the transparent sampling bottle.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the utility model, the oil sample in the transformer oil tank can be drawn into the transparent sampling bottle by the arrangement of the electric pump, the rubber hose, the liquid inlet pipe and the connecting pipe, and a first sealing ring is provided at the connection between the liquid inlet pipe and the transparent sampling bottle. The first bolt and the threaded hole cooperate with each other to achieve the first sealing ring tightly contacting the inner wall of the sealing groove, thereby improving the sealing performance of the connection, preventing the oil sample from leaking, and ensuring that the gas chromatography detection and analysis results are not affected by the entry of humid gas in the air into the oil sample or the escape of gas in the oil sample, thereby avoiding the detection error caused by sampling, and thus being able to truly reflect whether there is damage in the transformer so that maintenance can be carried out in time.

[0015] 2. In the utility model, the first stop valve and the pressure gauge are provided to control the opening and closing of the oil flow, and the oil pressure during sampling can be monitored to ensure the safety and accuracy of sampling. The high-efficiency filter can be provided to remove impurities in the oil sample and ensure the purity of the sample. The third bolt can be provided to restrict the high-efficiency filter so that it can be stably located in the connecting pipe and the rubber hose. The second sealing ring can increase the sealing performance of the connection between the high-efficiency filter and the connecting pipe and the rubber hose. The transparent sampling bottle is provided to facilitate subsequent observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a three-dimensional structural diagram of a transformer oil extraction and detection device;

[0017] Figure 2 This utility model proposes a transformer oil extraction detection device Figure 1 Schematic diagram of the cross-sectional structure;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the liquid inlet pipe, the first bolt, the first sealing ring and the pressure gauge;

[0019] Figure 4 is a schematic diagram of the three-dimensional structure of the bracket and the second bolt;

[0020] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0021] Legend: 1. Overall structure; 2. Discharge structure; 101. Transparent sampling bottle; 102. Handle; 103. Scale line; 104. Anti-slip pad; 105. Threaded hole; 106. Sealing groove; 107. Connecting pipe; 108. Electric pump; 109. First sealing ring; 110. First bolt; 111. Liquid inlet pipe; 112. Pressure gauge; 113. Bracket; 114. Second bolt; 115. Third bolt; 116. Second sealing ring; 117. HEPA filter; 118. Rubber hose; 119. First stop valve; 201. Liquid outlet pipe; 202. Second stop valve. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1, as Figure 1-Figure 5As shown, a transformer oil extraction and detection device includes an overall structure 1 and a discharge structure 2, and the discharge structure 2 is located on the outer surface of one side of the overall structure 1 near the bottom; the overall structure 1 includes a transparent sampling bottle 101, a sealing groove 106 is opened at the center of the top of the transparent sampling bottle 101, and a first sealing ring 109 is slidably connected to the center of the inner wall of the sealing groove 106, and a liquid inlet pipe 111 is penetrated by the inner surface of the first sealing ring 109, and a first bolt 110 is threadedly penetrated at both sides of the top of the transparent sampling bottle 101, and a bracket 113 is slidably connected to one side of the top of the transparent sampling bottle 101, an electric pump 108 is fixedly installed at the center of the top of the bracket 113, and a connecting pipe 107 is penetrated at the center of the outer surfaces of both sides of the electric pump 108, and a second bolt 114 is threadedly penetrated at the front and rear positions of the top of the bracket 113.

[0025] The effect achieved by the entire embodiment 1 is that, in the subsequent actual use process, through the setting of the sealing groove 106 and the first sealing ring 109, the sealing performance of the connection between the liquid inlet tube 111 and the transparent sampling bottle 101 can be increased, and the first sealing ring 109 utilizes the force of the first bolt 110 being screwed in so that its surface can fit more closely on the inner wall of the sealing groove 106, thereby improving the sealing effect, and through the setting of the first bolt 110 and the threaded hole 105, it is also achieved that most of them are detachable, so that subsequent users can maintain the components.

[0026] Example 2, as Figure 1-Figure 5As shown, a threaded hole 105 is provided on the top of the transparent sampling bottle 101 at the position of the first bolt 110, and the inner wall of the threaded hole 105 is threadedly connected to the outer surface of the first bolt 110, and the bottom end face of the first bolt 110 is threadedly penetrated through the sealing groove 106 and the inner surface of the transparent sampling bottle 101, and a pressure gauge 112 is fixedly installed on the outer surface of the connecting pipe 107. The interior of the connecting pipe 107 is connected to the interior of the liquid inlet pipe 111, and the bottom end face of the second bolt 114 is threadedly penetrated through the inner surface of the transparent sampling bottle 101. A non-slip pad 104 is fixedly connected to the bottom center of the transparent sampling bottle 101, and a handle 102 is fixedly connected to the other side of the outer surface of the transparent sampling bottle 101. A scale line 103 is provided at the center of the front outer surface of the transparent sampling bottle 101, and the inner A high-efficiency filter screen 117 is slidably connected to the surface, and a rubber hose 118 is slidably connected to one side of the outer surface of the high-efficiency filter screen 117. A third bolt 115 is threadedly penetrated through the front and rear outer surfaces of the rubber hose 118. A first stop valve 119 is fixedly installed on the outer surface of the rubber hose 118. A second sealing ring 116 is fixedly connected to the center of the outer surface of the high-efficiency filter screen 117. The outer surface of the second sealing ring 116 is slidably connected to the outer surface of the rubber hose 118 and the connecting pipe 107. The outer surface of the third bolt 115 is threadedly penetrated through the second sealing ring 116 and the outer surface of the connecting pipe 107. The discharge structure 2 includes a liquid outlet pipe 201. A second stop valve 202 is fixedly installed at the top center of the liquid outlet pipe 201. The interior of the liquid outlet pipe 201 is connected to the interior of the transparent sampling bottle 101.

[0027] The effect achieved by the entire embodiment 2 is that when the transparent sampling bottle 101 is placed on the table, its anti-slip pad 104 will contact the table, which can increase friction to prevent the transparent sampling bottle 101 from being displaced. The setting of the handle 102 makes it easy for the user to pick up the entire bottle at any time, which can be portable. The setting of the scale line 103 makes it easy for the user to check the amount of oil inside the transparent sampling bottle 101. The setting of the third bolt 115 allows the rubber hose 118 to be separated from the connecting pipe 107, so that the high-efficiency filter 117 can be removed for the user to clean it to ensure the subsequent filtering effect.

[0028] Working principle: When in use, the user first puts the rubber hose 118 into the oil tank of the transformer. After that, the electric pump 108 starts to operate. Through the mutual cooperation of the rubber hose 118, the connecting pipe 107 and the liquid inlet pipe 111, the oil sample can be drawn into the transparent sampling bottle 101. In this process, the sealing groove 106 and the first sealing ring 109 can be set to improve the sealing performance of the connection between the liquid inlet pipe 111 and the transparent sampling bottle 101, and the entire regional process is fully sealed to prevent the moisture in the air from entering the oil sample or the gas in the oil sample from escaping, thereby affecting the gas chromatography detection and analysis results. In the process of sampling, the pressure gauge 112 can be set to monitor the oil pressure during sampling, and the pressure can be measured by the first cut-off valve. The setting of valve 119 can control the opening and closing of oil flow. Through the setting of high-efficiency filter 117, the oil sample can be filtered to ensure the purity of the sample. Then, when the components need to be maintained or replaced, the user can first unscrew the first bolt 110 and the second bolt 114, and then take out the bracket 113 to separate it from the transparent sampling bottle 101, and then manually rotate the connecting pipe 107 on the liquid inlet pipe 111. At this time, the first sealing ring 109 will be forced to rotate in the sealing groove 106. When it is rotated to the open position, it can be lifted up, and the liquid inlet pipe 111 will be driven by the force, so that the liquid inlet pipe 111 will be separated from the transparent sampling bottle 101, thereby completing the disassembly of the sampling assembly for the user to maintain or replace it.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A transformer oil extraction detection device, characterized in that: include: An overall structure (1) and a discharge structure (2), wherein the discharge structure (2) is located on an outer surface of one side of the overall structure (1) near the bottom; The overall structure (1) includes a transparent sampling bottle (101), a sealing groove (106) is provided at the center of the top of the transparent sampling bottle (101), a first sealing ring (109) is slidably connected to the center of the inner surface wall of the sealing groove (106), a liquid inlet pipe (111) is penetrated through the inner surface of the first sealing ring (109), first bolts (110) are threadedly penetrated at both sides of the top of the transparent sampling bottle (101), a bracket (113) is slidably connected to one side of the top of the transparent sampling bottle (101), an electric pump (108) is fixedly installed at the center of the top of the bracket (113), a connecting pipe (107) is penetrated at the center of the outer surfaces of both sides of the electric pump (108), and second bolts (114) are threadedly penetrated at the front and rear positions of the top of the bracket (113).

2. A transformer oil extraction detection device according to claim 1, characterized in that: A threaded hole (105) is provided at the top of the transparent sampling bottle (101) at the position of the first bolt (110); the inner wall of the threaded hole (105) is threadedly connected to the outer surface of the first bolt (110); and the bottom end surface of the first bolt (110) is threadedly passed through the sealing groove (106) and the inner surface of the transparent sampling bottle (101).

3. The transformer oil extraction detection device according to claim 1, characterized in that: A pressure gauge (112) is fixedly mounted on the outer surface of the connecting tube (107), the interior of the connecting tube (107) is connected to the interior of the liquid inlet tube (111), and the bottom end surface of the second bolt (114) is threadedly passed through the inner surface of the transparent sampling bottle (101).

4. The transformer oil extraction detection device according to claim 1, characterized in that: A non-slip pad (104) is fixedly connected to the center of the bottom of the transparent sampling bottle (101), a handle (102) is fixedly connected to the other side of the outer surface of the transparent sampling bottle (101), and a scale line (103) is provided at the center of the front outer surface of the transparent sampling bottle (101).

5. The transformer oil extraction detection device according to claim 1, characterized in that: The inner surface of the connecting pipe (107) is slidably connected to a high-efficiency filter (117), and one side of the outer surface of the high-efficiency filter (117) is slidably connected to a rubber hose (118). The front and rear outer surfaces of the rubber hose (118) are threadedly penetrated by a third bolt (115), and the outer surface of the rubber hose (118) is fixedly mounted with a first stop valve (119).

6. The transformer oil extraction detection device according to claim 5, characterized in that: A second sealing ring (116) is fixedly connected to the center of the outer surface of the high-efficiency filter (117), and the outer surface of the second sealing ring (116) is slidably connected to the outer surfaces of the rubber hose (118) and the connecting pipe (107). The outer surface of the third bolt (115) is threadedly penetrated through the outer surfaces of the second sealing ring (116) and the connecting pipe (107).

7. The transformer oil extraction detection device according to claim 1, characterized in that: The discharge structure (2) comprises a liquid outlet pipe (201), a second stop valve (202) is fixedly installed at the top center of the liquid outlet pipe (201), and the interior of the liquid outlet pipe (201) is connected to the interior of the transparent sampling bottle (101).

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