Accurate sampling device for sulfur hexafluoride gas detection

Abstract

The utility model belongs to the technical field of sulfur hexafluoride gas detection sampling devices, and particularly relates to an accurate sampling device for sulfur hexafluoride gas detection, which comprises a fixing plate, electrical equipment is fixedly mounted at the top of the fixing plate, and a mounting frame is fixedly mounted in front of the top of the fixing plate. A supporting frame is fixedly installed on the right side of the electrical equipment and sequentially arranged from top to bottom, detection equipment is fixedly installed on the top of a fixing plate, through the arranged sampling assembly, the device can install extraction pipes in different areas of the electrical equipment, a first electric telescopic rod is controlled to drive a connecting block, a sliding rod and a piston to move, and the detection equipment is used for detecting the extraction pipes. According to the sulfur hexafluoride gas sampling device, the piston is arranged, so that gas in electrical equipment can be pumped out after the piston moves, the sulfur hexafluoride gas can be sampled according to the required quantity, the sulfur hexafluoride gas can be discharged into the gas storage box through the transmission pipe after being sampled, the device can sample different areas, and the sampling quantity can be controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfur hexafluoride gas detection sampling devices, in particular to an accurate sampling device for sulfur hexafluoride gas detection. Background Art

[0002] By testing the moisture content, decomposition products, and purity of electrical equipment filled with sulfur hexafluoride gas, monitoring the equipment's operating conditions has become a recognized and effective means of discovering electrical equipment failures and ensuring the safe operation of equipment. At present, the power industry requires that electrical equipment filled with sulfur hexafluoride of 110kV and above be sampled and tested once every three years. After each sampling, the stagnant gas at the gas extraction interface must be exhausted after connecting the instrument. In addition, the gas pressure and flow after passing through the instrument are very small, which takes a long time. If the dead gas is not exhausted, it will have a great impact on the test results, and even mislead production and operation and maintenance personnel, causing equipment accidents and affecting the safety of the power grid;

[0003] The announcement number CN 205981803 U discloses an accurate sampling device for sulfur hexafluoride gas detection, including an electrical device filled with sulfur hexafluoride, a three-way sampling valve, an analysis instrument sampling valve, a sulfur hexafluoride analysis instrument, a gas recovery device air intake pressure reducing valve, a pressure gauge and a gas recovery device;

[0004] When in use, the device can only extract and sample the sulfur hexafluoride gas inside the electrical equipment as a whole, so that the gas has no reference results after sampling. Therefore, we propose an accurate sampling device for sulfur hexafluoride gas detection. Utility Model Content

[0005] The utility model aims to provide an accurate sampling device for sulfur hexafluoride gas detection, which solves the existing problems.

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

[0007] An accurate sampling device for sulfur hexafluoride gas detection comprises a fixed plate, an electrical device is fixedly installed on the top of the fixed plate, a mounting frame is fixedly installed on the front of the top of the fixed plate, a support frame is fixedly installed on the right side of the electrical device, and the devices are arranged in sequence from top to bottom, a detection device is fixedly installed on the top of the fixed plate, a fixed clamping block is fixedly installed on the front side of the support frame, and a fixed sleeve is fixedly installed on the inner side of the fixed clamping block; a sampling component, the sampling component is installed on the mounting frame and the support frame; and a control component is installed on the fixed plate and the detection device.

[0008] As a further improvement of the above scheme, the sampling assembly includes a first electric telescopic rod, a connecting block, a sliding rod, a piston, an extraction tube, a solenoid valve, a transmission tube, a gas storage box and a connecting tube. The first electric telescopic rod is fixedly installed on the right side of the support frame, the connecting block is fixedly installed on the output end of the first electric telescopic rod, the sliding rod is fixedly installed on the left side of the connecting block, the piston is fixedly installed on the left side of the sliding rod, the extraction tube is fixedly installed on one side of a fixed sleeve, the extraction tube is fixedly installed on the inner side of the electrical equipment, the solenoid valve is fixedly installed on the inner side of the extraction tube, the transmission tube is fixedly installed on the outer side of the fixed sleeve, the gas storage box is fixedly installed on one side of the mounting frame, and they are arranged in sequence from top to bottom, and the connecting tube is fixedly installed on the right side of the gas storage box.

[0009] As a further improvement of the above scheme, the control component includes a fixed frame, a motor, a screw, a fixed rod, a slider, a second electric telescopic rod, a mounting plate and a gas detection pipeline, the fixed frame is fixedly installed on the front side of the fixed plate, the motor is fixedly installed on the top of the fixed frame, the screw is fixedly installed on the output end of the motor, the fixed rod is fixedly installed on the inner side of the fixed frame, the slider is threadedly installed on the outer side of the screw, the slider is slidably installed on the outer side of the fixed rod, the second electric telescopic rod is fixedly installed on one side of the slider, the mounting plate is fixedly installed on the output end of the second electric telescopic rod, the gas detection pipeline is fixedly installed on the top of the detection equipment, the gas detection pipeline is slidably installed on the inner side of the slider, and the gas detection pipeline is fixedly installed on the inner side of the mounting plate.

[0010] As a further improvement of the above solution, a slide groove is provided on one side of the slider, a fixing groove is provided on one side of the mounting plate, the outer diameter of the gas detection pipeline is smaller than the inner diameter of the slide groove, and the gas detection pipeline is fixedly installed on the inner side of the fixing groove.

[0011] As a further improvement of the above solution, a threaded hole and a through slot are provided on the top of the sliding block, the screw rod is engaged with the threaded hole, and the outer diameter of the fixing rod is the same as the inner diameter of the through slot.

[0012] As a further improvement of the above solution, a scale bar is provided on the outer side of the fixed sleeve, and the piston is made of rubber.

[0013] As a further improvement of the above solution, an extraction device is provided on the inner side of the gas storage box, and a one-way valve is fixedly installed on the inner side of the connecting pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The utility model is an accurate sampling device for sulfur hexafluoride gas detection. By setting a sampling component, the device can install an extraction tube in different areas of the electrical equipment, control the first electric telescopic rod to drive the connecting block, the sliding rod and the piston to move, so that the piston can extract the gas inside the electrical equipment after moving, and the sulfur hexafluoride gas can be sampled according to the required quantity. After the sampling is completed, it can be discharged into the interior of the gas storage box through the transmission pipe, so that the device can sample different areas and the sampling quantity can be controlled;

[0016] (2) The utility model is an accurate sampling device for sulfur hexafluoride gas detection. By setting a reference component, the motor is controlled to drive the screw rod to rotate, so that the screw rod can drive the slider to move up and down after the rotation, so that the slider can align the gas detection pipeline with different connecting pipes after the lifting and lowering, so that the second electric telescopic rod drives the mounting plate and the gas detection pipeline to enter the interior of the connecting pipe, so that the detection equipment can detect the gas, and the detection results can be compared with reference, so that the results are more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an accurate sampling device for sulfur hexafluoride gas detection proposed by the utility model;

[0019] Figure 2 This is a partial three-dimensional structural schematic diagram of an accurate sampling device for sulfur hexafluoride gas detection proposed by the utility model;

[0020] Figure 3 This is a partial three-dimensional structural schematic diagram of an accurate sampling device for sulfur hexafluoride gas detection proposed by the utility model.

[0021] In the figure: 1. fixing plate; 2. electrical equipment; 3. mounting frame; 4. supporting frame; 5. detection equipment; 6. fixing block; 7. fixing sleeve; 8. first electric telescopic rod; 9. connecting block; 10. sliding rod; 11. piston; 12. extraction tube; 13. solenoid valve; 14. transmission tube; 15. gas storage box; 16. connecting tube; 17. fixing frame; 18. motor; 19. screw rod; 20. fixing rod; 21. sliding block; 22. second electric telescopic rod; 23. mounting plate; 24. gas detection pipeline. DETAILED DESCRIPTION

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

[0023] refer to Figure 1-3 , an accurate sampling device for sulfur hexafluoride gas detection, comprising a fixed plate 1, an electrical device 2 is fixedly installed on the top of the fixed plate 1, a mounting frame 3 is fixedly installed on the front of the top of the fixed plate 1, a support frame 4 is fixedly installed on the right side of the electrical device 2, and they are arranged in sequence from top to bottom, a detection device 5 is fixedly installed on the top of the fixed plate 1, a fixed card block 6 is fixedly installed on the front side of the support frame 4, and a fixed sleeve 7 is fixedly installed on the inner side of the fixed card block 6; a sampling component, the sampling component is installed on the mounting frame 3 and the support frame 4; a control component, the control component is installed on the fixed plate 1 and the detection device 5; as a further improvement of the above scheme, the sampling component includes a first electric telescopic rod 8, a connecting block 9, a sliding rod 10, a piston 11, an extraction tube 12, a solenoid valve 13, a transmission Tube 14, gas storage box 15 and connecting pipe 16, the first electric telescopic rod 8 is fixedly installed on the right side of the support frame 4, the connecting block 9 is fixedly installed on the output end of the first electric telescopic rod 8, the sliding rod 10 is fixedly installed on the left side of the connecting block 9, the piston 11 is fixedly installed on the left side of the sliding rod 10, the extraction pipe 12 is fixedly installed on one side of the fixed sleeve 7, the extraction pipe 12 is fixedly installed on the inner side of the electrical equipment 2, the solenoid valve 13 is fixedly installed on the inner side of the extraction pipe 12, the transmission pipe 14 is fixedly installed on the outer side of the fixed sleeve 7, the gas storage box 15 is fixedly installed on one side of the mounting frame 3, and they are arranged in sequence from top to bottom, and the connecting pipe 16 is fixedly installed on the right side of the gas storage box 15, so that the device can sample different areas of the electrical equipment 2, so that the sampling range is larger.

[0024] As a further improvement of the above scheme, the control assembly includes a fixing frame 17, a motor 18, a screw 19, a fixing rod 20, a slider 21, a second electric telescopic rod 22, a mounting plate 23 and a gas detection pipeline 24, the fixing frame 17 is fixedly mounted on the front side of the fixing plate 1, the motor 18 is fixedly mounted on the top of the fixing frame 17, the screw 19 is fixedly mounted on the output end of the motor 18, the fixing rod 20 is fixedly mounted on the inner side of the fixing frame 17, the slider 21 is threadedly mounted on the outer side of the screw 19, the slider 21 is slidably mounted on the outer side of the fixing rod 20, the second electric telescopic rod 22 is fixedly mounted on one side of the slider 21, the mounting plate 23 is fixedly mounted on the output end of the second electric telescopic rod 22, and the gas detection pipeline 24 is fixedly mounted on At the top of the detection device 5, the gas detection pipe 24 is slidably installed on the inner side of the slider 21, and the gas detection pipe 24 is fixedly installed on the inner side of the mounting plate 23, so that the gas detection pipe 24 can enter the interior of the connecting pipe 16, so that the detection device 5 can detect the gas sampled in different areas, so that the detection result of the device has comparative properties; as a further improvement of the above scheme, a slide groove is opened on one side of the slider 21, and a fixed groove is opened on one side of the mounting plate 23. The outer diameter of the gas detection pipe 24 is smaller than the inner diameter of the slide groove, and the gas detection pipe 24 is fixedly installed on the inner side of the fixed groove, so that the gas detection pipe 24 can slide on the inner side of the slider 21, so that the gas detection pipe 24 is not easily damaged during movement.

[0025] As a further improvement of the above scheme, a threaded hole and a through groove are provided on the top of the slider 21, the screw rod 19 is meshed with the threaded hole, the outer diameter of the fixed rod 20 is the same as the inner diameter of the through groove, and the threaded hole makes it convenient for the screw rod 19 to drive the slider 21 to slide under force through threaded cooperation after rotation; as a further improvement of the above scheme, a scale bar is provided on the outside of the fixed sleeve 7, and the material of the piston 11 is rubber; the scale bar makes it convenient for the staff to control the amount of gas during sampling; as a further improvement of the above scheme, an extraction device is provided on the inner side of the gas storage box 15, and a one-way valve is fixedly installed on the inner side of the connecting pipe 16, so that the gas inside the gas storage box 15 is not easy to leak, so that the connecting pipe 16 can transmit and detect the gas only after being connected to the gas detection pipeline 24.

[0026] The implementation principle of one embodiment of the present application is as follows: the device can install the extraction tube 12 in different areas of the electrical equipment 2, control the first electric telescopic rod 8 to drive the connecting block 9, the sliding rod 10 and the piston 11 to move, so that the piston 11 can extract the gas inside the electrical equipment 2 after moving, and it can sample the sulfur hexafluoride gas according to the required quantity, and after the sampling is completed, it can be discharged into the interior of the gas storage box 15 through the transmission pipe 14, so that the device can sample different areas and control the number of samples; control the motor 18 to drive the screw rod 19 to rotate, so that the screw rod 19 can drive the slider 21 to rise and fall after rotation, so that the slider 21 can align the gas detection pipeline 24 with different connecting pipes 16 after rising and falling, so that the second electric telescopic rod 22 drives the mounting plate 23 and the gas detection pipeline 24 to enter the interior of the connecting pipe 16, so that the detection device 5 can detect the gas, and the detection results are compared with reference, so that the results are more accurate.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The above is a detailed introduction to an accurate sampling device for sulfur hexafluoride gas detection provided by the utility model. This article uses specific embodiments to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An accurate sampling device for sulfur hexafluoride gas detection, characterized in that: include: A fixing plate (1), an electrical device (2) is fixedly mounted on the top of the fixing plate (1), a mounting frame (3) is fixedly mounted in front of the top of the fixing plate (1), a support frame (4) is fixedly mounted on the right side of the electrical device (2), and the fixing plates (1) are arranged in sequence from top to bottom, a detection device (5) is fixedly mounted on the top of the fixing plate (1), a fixed clamping block (6) is fixedly mounted on the front side of the support frame (4), and a fixed sleeve (7) is fixedly mounted on the inner side of the fixed clamping block (6); A sampling assembly, wherein the sampling assembly is mounted on a mounting frame (3) and a supporting frame (4); A control component is mounted on the fixing plate (1) and the detection device (5).

2. An accurate sampling device for sulfur hexafluoride gas detection according to claim 1, characterized in that: The sampling assembly comprises a first electric telescopic rod (8), a connecting block (9), a sliding rod (10), a piston (11), an extraction tube (12), a solenoid valve (13), a transmission tube (14), a gas storage box (15) and a connecting tube (16), wherein the first electric telescopic rod (8) is fixedly mounted on the right side of the support frame (4), the connecting block (9) is fixedly mounted on the output end of the first electric telescopic rod (8), the sliding rod (10) is fixedly mounted on the left side of the connecting block (9), and the piston (11) is fixedly mounted on the On the left side of the slide bar (10), the extraction pipe (12) is fixedly mounted on one side of the fixed sleeve (7), the extraction pipe (12) is fixedly mounted on the inner side of the electrical device (2), the solenoid valve (13) is fixedly mounted on the inner side of the extraction pipe (12), the transmission pipe (14) is fixedly mounted on the outer side of the fixed sleeve (7), the gas storage box (15) is fixedly mounted on one side of the mounting frame (3), and they are arranged in sequence from top to bottom, and the connecting pipe (16) is fixedly mounted on the right side of the gas storage box (15).

3. The accurate sampling device for sulfur hexafluoride gas detection according to claim 1, characterized in that: The control assembly comprises a fixing frame (17), a motor (18), a screw rod (19), a fixing rod (20), a sliding block (21), a second electric telescopic rod (22), a mounting plate (23) and a gas detection pipeline (24), wherein the fixing frame (17) is fixedly mounted on the front side of the fixing plate (1), the motor (18) is fixedly mounted on the top of the fixing frame (17), the screw rod (19) is fixedly mounted on the output end of the motor (18), the fixing rod (20) is fixedly mounted on the inner side of the fixing frame (17), and the sliding block (21) is fixedly mounted on the inner side of the fixing frame (17). ) is threadedly mounted on the outer side of the screw rod (19), the slider (21) is slidably mounted on the outer side of the fixed rod (20), the second electric telescopic rod (22) is fixedly mounted on one side of the slider (21), the mounting plate (23) is fixedly mounted on the output end of the second electric telescopic rod (22), the gas detection pipeline (24) is fixedly mounted on the top of the detection device (5), the gas detection pipeline (24) is slidably mounted on the inner side of the slider (21), and the gas detection pipeline (24) is fixedly mounted on the inner side of the mounting plate (23).

4. The accurate sampling device for sulfur hexafluoride gas detection according to claim 3, characterized in that: A sliding groove is provided on one side of the sliding block (21), a fixing groove is provided on one side of the mounting plate (23), the outer diameter of the gas detection pipeline (24) is smaller than the inner diameter of the sliding groove, and the gas detection pipeline (24) is fixedly mounted on the inner side of the fixing groove.

5. The accurate sampling device for sulfur hexafluoride gas detection according to claim 3, characterized in that: A threaded hole and a through slot are provided on the top of the sliding block (21), the screw rod (19) is meshed with the threaded hole, and the outer diameter of the fixing rod (20) is the same as the inner diameter of the through slot.

6. An accurate sampling device for sulfur hexafluoride gas detection according to claim 2, characterized in that: The outer side of the fixed sleeve (7) is provided with a scale bar, and the piston (11) is made of rubber.

7. An accurate sampling device for sulfur hexafluoride gas detection according to claim 2, characterized in that: An extraction device is provided on the inner side of the gas storage box (15), and a one-way valve is fixedly installed on the inner side of the connecting pipe (16).

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