Portable sulfur hexafluoride gas humidity detection device

Abstract

The present application relates to gas humidity detection technical field, particularly to a kind of portable sulfur hexafluoride gas humidity detection device, it includes suitcase, detector, fan, cross plate, scissor fork support and gas collection cover.The exhaust hole is provided on suitcase, and guiding pipe is provided in suitcase.The bottom of detector is provided with detection probe plate, and detection probe plate is located in guiding pipe.Fan is arranged in guiding pipe and blows towards exhaust hole.Cross plate is arranged in suitcase, vertical plate is arranged on cross plate, winding assembly is rotatably arranged on vertical plate, and coil spring for driving winding assembly to reverse is arranged on vertical plate.Inlet pipe is communicated with connecting pipe on winding roller, and another end of inlet pipe is inserted into guiding pipe.Scissor fork support is arranged at the bottom of cross plate, and scissor fork support is driven to be connected with bottom plate, and gas collection cover is arranged on bottom plate, and connecting pipe is communicated with gas collection cover.The present application improves the comfort of staff when working on the basis of keeping sampling height fixed.

Description

Technical Field

[0001] This invention relates to the field of gas humidity detection technology, and in particular to a portable sulfur hexafluoride gas humidity detection device. Background Technology

[0002] SF6 is a highly electronegative gas. Its molecules readily adsorb free electrons to form large negative ions, weakening the collisional ionization process in the gas. Therefore, it has very high electrical insulation strength, approximately 2.5 times that of air in a uniform electric field. SF6 is widely used as an insulating medium in high-voltage electrical equipment. However, its electrical strength decreases significantly when the humidity of sulfur hexafluoride increases. Therefore, it is necessary to monitor the humidity of sulfur hexafluoride gas.

[0003] Existing sulfur hexafluoride (SF6) gas monitoring devices include both fixed-installation and portable types. Portable SF6 gas humidity detectors have the advantage of being small and easy to carry. However, the sampling process for existing portable SF6 gas humidity detectors is relatively cumbersome. According to SF6 gas detection standards, sampling needs to be performed at a height of 30-60cm above the ground. This height requires the testing personnel to bend over to work, and repeated large-area sampling will increase the pressure on the lumbar spine of the staff. In addition, manually controlling the height of the detector above the ground is quite difficult. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a portable sulfur hexafluoride gas humidity detection device.

[0005] The technical solution of the present invention: a portable sulfur hexafluoride gas humidity detection device, comprising a carrying case, a detector, a fan, a horizontal plate, a scissor-type bracket, and a gas collection hood;

[0006] The suitcase is equipped with an exhaust vent, and a guide tube is installed inside the suitcase. The guide tube is located inside the suitcase and communicates with the exhaust vent. The detector is installed inside the suitcase, and a detection plate is installed at the bottom of the detector. The detection plate is located inside the guide tube and is perpendicular to the airflow direction inside it. The fan is installed inside the guide tube and faces the exhaust vent.

[0007] A horizontal plate is installed inside the carrying case. Two vertical plates are symmetrically arranged on the horizontal plate. A hollow shaft is rotatably installed between the two vertical plates. A circular groove is set on the vertical plate, and a coil spring is installed in the circular groove. The coil spring covers the outside of the hollow shaft, and the inner end of the coil spring is fixedly connected to the outer wall of the hollow shaft. The outer end of the coil spring is fixedly connected to the inner wall of the circular groove. A take-up roller is set on the hollow shaft, and a connecting tube is wound on the take-up roller. One end of the connecting tube passes through the take-up roller and is inserted into the hollow shaft. An air inlet pipe is rotatably connected to the hollow shaft and communicates with its interior. The other end of the air inlet pipe is inserted into the guide tube, and the opening of the air inlet pipe and the exhaust port are located on both sides of the detection probe plate, respectively.

[0008] A scissor lift bracket is installed at the bottom of the horizontal plate. The scissor lift bracket is connected to the base plate, and a vent pipe is installed on the base plate. The other end of the connecting pipe is inserted into the vent pipe and communicates with its interior. A gas collection hood is installed at the top of the vent pipe and communicates with its interior. Rollers are installed at the bottom of the base plate.

[0009] Preferably, the suitcase has a rotating lid, a clasp, and a locking hook, with the clasp and locking hook engaging.

[0010] Preferably, the bottom of the suitcase has a storage slot located below the horizontal plate; the bottom of the suitcase also has a passageway communicating with the storage slot, allowing the bottom plate to be stored in the storage slot after the scissor-lift bracket is retracted. The horizontal plate has a square hole matching the gas collection hood, allowing the gas collection hood to pass through the square hole and enter the suitcase after the scissor-lift bracket is retracted.

[0011] Preferably, a controller is installed inside the suitcase, and control buttons and adjustment knobs are installed on the top of the suitcase.

[0012] Preferably, the suitcase is provided with an air inlet that communicates with its interior, the air inlet end of the air collection hood matches the air inlet, and dustproof nets are provided inside both the air inlet and the exhaust port.

[0013] Preferably, it also includes a drive assembly and a battery assembly. The drive assembly drives the scissor-type bracket, and the battery assembly is electrically connected to each electrical component.

[0014] Preferably, the height of the gas collection hood above the ground is between 30cm and 60cm.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] By setting up a scissor-type support, the base plate is pushed out, or rather, a suitcase is placed on the base plate, so that the suitcase is at an appropriate height from the ground. The staff can push the device to move during testing. The gas collection hood on the base plate is always kept between 30-60cm from the ground, requiring no manual control, reducing the difficulty of bending over for the staff and improving their work comfort. At the same time, the device is equipped with a take-up roller. The cooperation structure between the coil spring and the take-up roller ensures that the connecting pipe on the take-up roller is always in a taut state and will not be entangled with the scissor-type connecting rod. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0018] Figure 2 This is a diagram of the internal structure of the suitcase;

[0019] Figure 3 This is a diagram of the internal structure of the guide tube;

[0020] Figure 4 This is a diagram showing the connection structure between the air inlet pipe and the take-up roller.

[0021] Reference numerals: 1. Handle; 101. Storage slot; 102. Passage slot; 103. Air inlet; 104. Controller; 2. Lid; 3. Exhaust port; 4. Guide tube; 5. Detector; 6. Detection plate; 7. Fan; 8. Horizontal plate; 9. Vertical plate; 91. Circular groove; 10. Hollow shaft; 11. Coil spring; 12. Take-up roller; 13. Connecting pipe; 14. Air inlet pipe; 15. Scissor bracket; 16. Base plate; 17. Vent pipe; 18. Air collection hood; 19. Roller; 20. Handle. Detailed Implementation

[0022] Example 1

[0023] like Figure 1-4 As shown, the present invention proposes a portable sulfur hexafluoride gas humidity detection device, comprising a carrying case 1, a detector 5 (sulfur hexafluoride gas humidity detector), a fan 7, a horizontal plate 8, a scissor-type bracket 15, and a gas collection hood 18. The carrying case 1 is provided with an exhaust port 3, and a guide tube 4 is provided inside the carrying case 1, located on the inner side of the carrying case 1 and communicating with the exhaust port 3. The detector 5 is located inside the carrying case 1, and a detection probe 6 is provided at the bottom of the detector 5, located inside the guide tube 4 and perpendicular to the airflow direction inside it. The fan 7 is located inside the guide tube 4 and close to the exhaust port 3, and the fan 7 blows air towards the exhaust port 3. A horizontal plate 8 is installed inside the carrying case 1. Two vertical plates 9 are symmetrically arranged on the horizontal plate 8. A hollow shaft 10 is rotatably arranged between the two vertical plates 9. A circular groove 91 is provided on the vertical plate 9. A coil spring 11 is installed in the circular groove 91. The coil spring 11 covers the outside of the hollow shaft 10, and the inner end of the coil spring 11 is fixedly connected to the outer wall of the hollow shaft 10. The outer end of the coil spring (11) is fixedly connected to the inner wall of the circular groove (91). A take-up roller 12 is provided on the hollow shaft 10. A connecting pipe 13 is provided on the take-up roller 12, and one end of the connecting pipe 13 passes through the take-up roller 12 and is inserted into the hollow shaft 10. An air inlet pipe 14 is rotatably arranged at one end of the hollow shaft 10 and communicates with its interior. The other end of the air inlet pipe 14 is inserted into the guide pipe 4, and the opening of the air inlet pipe 14 and the exhaust port 3 are located on both sides of the detection probe 6. A scissor-type bracket 15 is installed at the bottom of the horizontal plate 8. The scissor-type bracket 15 drives the connecting base plate 16. A vent pipe 17 is installed on the base plate 16. The other end of the connecting pipe 13 is inserted into the vent pipe 17 and communicates with its interior. A gas collection hood 18 is installed at the top of the vent pipe 17 and communicates with its interior. Rollers 19 are installed at the bottom of the base plate 16.

[0024] The bottom of the suitcase 1 is provided with a storage slot 101, which is located below the horizontal plate 8. The bottom of the suitcase 1 is provided with a passageway 102 that communicates with the storage slot 101. After the scissor bracket 15 is retracted, the bottom plate 16 can be stored in the storage slot 101 through the passageway 102.

[0025] The horizontal plate 8 has a square hole that matches the gas collection hood 18. After the scissor bracket 15 is retracted, the gas collection hood 18 can pass through the square hole and enter the suitcase 1.

[0026] In this embodiment, in order to facilitate the sampling and testing of various parts of the room by the staff and reduce the burden of the staff's hands, the scissor bracket 15 is activated. The base plate 16 is pushed out to a suitable height from the ground by the scissor bracket 15. At this time, the staff can directly push the device to move and test. The height of the gas collection hood 18 from the ground remains unchanged, which can improve the accuracy and convenience of sampling and testing. As the base plate 16 descends, the connecting pipe 13 is automatically released, while the coil spring 11 continues to release its elastic potential energy. Under the action of the coil spring 11, the connecting pipe 13 remains taut, effectively preventing the connecting pipe 13 from getting tangled with the scissor linkage. Then, the fan 7 is activated, which drives the air in the guide pipe 4 to be discharged and causes the gas near the gas collection hood 18 to enter the guide pipe 4. When the gas contacts the detection probe 6, the detector 5 automatically obtains the humidity of sulfur hexafluoride at the current sampling location. After the detection is completed, the scissor bracket 15 pulls up the base plate 16 to put the base plate into the carrying case 1. At this time, the winding roller 12 automatically reverses and winds up the excess connecting pipe 13 under the drive of the released potential energy of the coil spring 11.

[0027] Example 2

[0028] like Figure 1 and 2 As shown, the portable sulfur hexafluoride gas humidity detection device proposed in this invention, compared with the first embodiment, has an air inlet 103 connected to the inside of the carrying case 1, the air inlet end of the gas collection hood 18 faces the air inlet 103, and dustproof nets are provided inside both the air inlet 103 and the exhaust port 3.

[0029] In this embodiment, when the operator selects the carrying device for operation, the base plate 16 and all its upper components are located inside the carrying case 1. At this time, gas can enter the carrying case through the air inlet 103 and then enter the gas collection hood 18. The dustproof net prevents dust from entering the carrying case 1. This invention can perform detection operations whether the carrying case 1 is raised or retracted.

[0030] Example 3

[0031] like Figure 2As shown, the portable sulfur hexafluoride gas humidity detection device proposed in this invention has a height of 30cm to 60cm above the ground compared to Embodiment 1, and the horizontal plate 8 is provided with a through hole for the passage of the gas collection hood 18.

[0032] In this embodiment, sulfur hexafluoride gas molecules have a larger mass than air and are usually located in the lower layer of the space. According to the relevant standards for sulfur hexafluoride gas detection, it is necessary to sample and detect it from a height of 30-60cm above the ground. The gas collection hood 18 is set to a fixed standard structure at the height above the ground, so that the sampling and detection height does not need to be controlled by the staff. Compared with traditional handheld portable gas detectors, it has the advantage of being more convenient for sampling and detection.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A portable sulfur hexafluoride gas humidity detection device, characterized in that, Includes a carrying case (1), a detector (5), a fan (7), a horizontal plate (8), a scissor bracket (15), and a gas collection hood (18); A vent (3) is provided on the suitcase (1), and a guide tube (4) is provided inside the suitcase (1). The guide tube (4) is located inside the suitcase (1) and communicates with the vent (3). A detector (5) is provided inside the suitcase (1), and a detection plate (6) is provided at the bottom of the detector (5). The detection plate (6) is located inside the guide tube (4) and is perpendicular to the airflow direction inside it. A fan (7) is provided inside the guide tube (4) and faces the vent (3). A horizontal plate (8) is set inside the suitcase (1). Two vertical plates (9) are symmetrically arranged on the horizontal plate (8). A hollow shaft (10) is rotatably arranged between the two vertical plates (9). A circular groove (91) is set on the vertical plate (9). A coil spring (11) is set in the circular groove (91). The coil spring (11) covers the outside of the hollow shaft (10), and the inner end of the coil spring (11) is fixedly connected to the outer wall of the hollow shaft (10). The outer end of the coil spring (11) is fixedly connected to the inner wall of the circular groove (91). Connect; a take-up roller (12) is provided on the hollow shaft (10), a connecting pipe (13) is wound on the take-up roller (12), and one end of the connecting pipe (13) passes through the take-up roller (12) and is inserted into the hollow shaft (10); an air inlet pipe (14) is rotatably provided on one end of the hollow shaft (10) and communicates with its interior, and the other end of the air inlet pipe (14) is inserted into the guide pipe (4), and the opening of the air inlet pipe (14) and the exhaust hole (3) are located on both sides of the detection probe (6); A scissor bracket (15) is set at the bottom of the horizontal plate (8). The scissor bracket (15) drives the connecting base plate (16). A vent pipe (17) is set on the base plate (16). The other end of the connecting pipe (13) is inserted into the vent pipe (17) and communicates with its interior. A gas collection hood (18) is set at the top of the vent pipe (17) and communicates with its interior. The bottom of the suitcase (1) is provided with a storage slot (101), which is located below the horizontal plate (8); the bottom of the suitcase (1) is provided with a passage slot (102) that communicates with the storage slot (101), and the bottom plate (16) can be stored in the storage slot (101) through the passage slot (102) after the scissor bracket (15) is folded up; The horizontal plate (8) has a square hole that matches the gas collection hood (18). After the scissor bracket (15) is retracted, the gas collection hood (18) can pass through the square hole and enter the suitcase (1). When the base plate (16) moves downward, the connecting tube (13) is released, the coil spring (11) continues to generate elastic potential energy, and the connecting tube (13) remains taut under the action of the coil spring (11) to prevent the connecting tube (13) from getting tangled with the scissor linkage.

2. The portable sulfur hexafluoride gas humidity detection device according to claim 1, characterized in that, The suitcase (1) is fitted with a rotating lid (2), the suitcase (1) is fitted with a buckle, and the lid (2) is fitted with a locking hook. The buckle and the locking hook work together.

3. The portable sulfur hexafluoride gas humidity detection device according to claim 1, characterized in that, The suitcase (1) is provided with an air inlet (103) that communicates with its interior. The air inlet end of the air collection hood (18) matches the air inlet (103), and dustproof nets are provided inside both the air inlet (103) and the exhaust hole (3).

4. The portable sulfur hexafluoride gas humidity detection device according to claim 1, characterized in that, It also includes a drive assembly and a battery assembly; the drive assembly drives the scissor bracket (15), and the battery assembly is electrically connected to each electrical component.

5. A portable sulfur hexafluoride gas humidity detection device according to claim 1, characterized in that, The height of the gas collection hood (18) above the ground is between 30cm and 60cm.

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