SF6 gas online sensing device for closed space

Abstract

The utility model discloses an SF6 gas on-line sensing device for a closed space, which relates to the technical field of SF6 gas on-line sensing and comprises an SF6 gas transmitter body and an exchange chamber. The dehumidification assembly comprises a first connecting plate and a second connecting plate, the opposite faces of the first connecting plate and the second connecting plate are jointly and rotationally connected with a connecting rod, a plurality of drying chambers are fixedly connected to the outer surface of the connecting rod in an annular array mode, and inner cavities of the drying chambers are filled with drying agents. The controller is used for controlling the motor to run regularly, the motor is used for driving the connecting rod to rotate, and then the drying chambers can be driven to rotate, so that the positions of the drying chambers can be adjusted, and then a new drying chamber can be conveniently rotated to the position adjacent to the exchange chamber; the air conveyed into the inner cavity of the exchange chamber is dehumidified by using the drying agent in the inner cavity of the new drying chamber, so that when the drying agent is replaced, the manual operation can be reduced, the replacement frequency is reduced, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of SF6 gas online sensing, and in particular to an SF6 gas online sensing device for a confined space. Background Art

[0002] The SF6 gas online sensing device is a device specially used to monitor the concentration of sulfur hexafluoride (SF6) gas in a confined space. As an inert gas with high insulation strength and high thermal stability, SF6 gas is widely used in high-voltage electrical equipment in the power industry as an insulating and arc-extinguishing medium. However, if SF6 gas leaks or is improperly handled, it may pollute the environment and pose a potential hazard to human health. Therefore, real-time monitoring of SF6 gas is particularly important.

[0003] During the use of existing SF6 gas online sensing devices, it is usually necessary to use an SF6 gas transmitter to sample the gas. The transmitter actively sucks the gas sample in the enclosed space into the device, and then uses the built-in gas sensor to detect the sampled gas. The working principle of the sensor is based on the electrochemical principle or the infrared principle. It detects the toxic and harmful gases (such as SO2, H2S, etc.) produced by the decomposition of SF6 gas or the infrared absorption characteristics of SF6 gas, and converts them into electrical signal output, thereby realizing real-time monitoring of SF6 gas concentration.

[0004] However, in practical applications, existing SF6 gas online sensing devices face a series of challenges, among which protecting the sensor and improving measurement accuracy are two key issues. Since there are often moisture, dust, and oil mist impurities in confined spaces, these impurities may adhere to the sensor surface during sampling or interfere with the sensor's detection process, resulting in measurement errors or sensor damage.

[0005] Chinese patent document CN219997024U discloses a VOC gas online monitoring device, including a processing device body, a pair of first slide rails, a pair of second slide rails and a pair of third slide rails are provided on the inner side of the two side walls of the processing device body, the pair of first slide rails, the pair of first filter screens and the pair of third slide rails are provided in sequence from bottom to top, a first filter screen is slidably connected to the first slide rail, a mounting box is slidably connected in the second slide rail, a plurality of first through holes are provided on the upper and lower side walls of the mounting box, a placement box is slidably connected in the mounting box, and a desiccant is arranged in the placement box; however, the following defects still exist in the implementation process:

[0006] The device in the above-mentioned document slidingly connects the filter plate for filtering and dust removal of VOC gas in the treatment device to the housing of the treatment device, and slidingly connects the placement box for placing the desiccant to the installation box. When the dust removal and drying effects of the treatment device decrease, the filter plate and the placement box can be slid out for replacement or cleaning to ensure the treatment effect of the treatment device. However, when replacing the desiccant in the device in the above-mentioned document, manual replacement is often required, resulting in low replacement efficiency. In addition, in order to ensure the dehumidification quality of the desiccant for the gas, the desiccant needs to be replaced frequently, which will increase the workload of the staff. Utility Model Content

[0007] The purpose of the utility model is to provide an SF6 gas online sensing device for a confined space to solve the problems raised in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0009] An SF6 gas online sensing device for a confined space comprises an SF6 gas transmitter body and an exchange chamber; the exchange chamber is symmetrically fixedly connected with a connecting block 1, and a dehumidification component is arranged on one side of the two connecting blocks 1 close to the exchange chamber, and the dehumidification component is used to dehumidify the gas transported to the inner cavity of the exchange chamber, and the dehumidification component comprises a connecting plate 1 and a connecting plate 2, and the opposite surfaces of the connecting plate 1 and the connecting plate 2 are connected with a connecting rod for rotation together, and a plurality of drying chambers are fixedly connected with an annular array on the outer surface of the connecting rod, and the inner cavities of the plurality of drying chambers are filled with desiccants, a motor is fixedly connected with the upper end of the connecting plate 1, and the output shaft of the motor passes through the upper end of the connecting plate 1 and extends to the lower part of the connecting plate and is fixedly connected with the connecting rod, a sealing block is clamped on one side of the connecting plate 1, and a dust removal component is arranged on the side of the exchange chamber away from the SF6 gas transmitter body, and the dust removal component is used to filter the gas transported to the inner cavity of the exchange chamber, and a connecting block 3 is fixedly connected with the side of the dust removal component away from the exchange chamber, and a filter plate is fixedly connected with the side of the connecting block 3 away from the dust removal component.

[0010] It is proposed in the background technology that in order to ensure the dehumidification quality of the desiccant for the gas, the desiccant needs to be replaced frequently. In order to reduce the frequency of workers replacing desiccant and reduce the labor intensity of workers, the present application is fixedly connected to the connecting rod by the motor output shaft, and then a plurality of drying chambers are fixedly connected to the annular array on the outer surface of the connecting rod, and the inner cavity of the drying chamber is filled with desiccant. In order to ensure the dehumidification quality of the desiccant for the gas in the inner cavity of the exchange chamber, when the desiccant in the inner cavity of the drying chamber adjacent to the exchange chamber needs to be replaced, the motor is controlled to run regularly by the controller, and the connecting rod is driven to rotate by the motor, and then the plurality of drying chambers can be driven to rotate, so that the positions of the plurality of drying chambers can be adjusted, and then the new drying chamber is conveniently rotated to the position adjacent to the exchange chamber, and the desiccant in the inner cavity of the new drying chamber is used to dehumidify the gas transported to the inner cavity of the exchange chamber, so that when replacing the desiccant, manual operation can be reduced, the replacement frequency can be reduced, and the labor intensity of workers can be reduced. Moreover, through the rotation mechanism, the new desiccant can seamlessly take over the work, avoiding the dehumidification interruption caused by saturation failure of the traditional fixed desiccant, and ensuring the stability of the gas treatment quality.

[0011] A further improvement of the technical solution of the utility model is that a receiving box is slidably connected to the lower part of the connecting block, the connecting block 1 is fixedly connected to the exchange chamber, the connecting plate 1 and the connecting plate 2 are fixedly connected to the connecting block 1, and the drying chamber is rotatably connected to the connecting block 1.

[0012] The above technical solution is adopted. In this solution, the storage box is slidably connected to the connecting block, so that the used desiccant can be collected by the storage box, which is convenient for the staff to handle the used desiccant.

[0013] A further improvement of the technical solution of the utility model is that the dust removal component includes a connecting block 2 fixedly connected to the exchange chamber, a filter box is slidably connected to the inner cavity of the connecting block 2, a limiting plate is symmetrically slidably connected to the lower part of the connecting block 2, and a limiting component is symmetrically arranged at the lower part of the connecting block 2, and the limiting component is used to limit the position of the limiting plate.

[0014] The above technical solution is adopted. In this solution, the filter box is slidably connected to the connecting block 2, so that it is convenient to slide the filter box out of the inner cavity of the connecting block 2, and then it is convenient for the staff to process the dust filtered and collected by the filter box, avoiding excessive dust collected in the inner cavity of the filter box, which may cause blockage of the mesh holes in the inner cavity of the filter box.

[0015] A further improvement of the technical solution of the utility model is that the limiting component includes an outer shell fixedly connected to the second connecting block, a card block is slidably connected to the inner cavity of the outer shell, a spring is provided in the inner cavity of the outer shell, a side of the spring close to the card block is fixedly connected to the card block, a side of the spring away from the card block is fixedly connected to the inner wall of the outer shell, and a card groove for use with the card block is provided on the side of the upper end of the limiting plate close to the card block.

[0016] The above-mentioned technical solution is adopted. In this solution, the elastic force of the spring can be used to drive the spring to stretch, and then push the block to move in the direction of the slot. Then, with the cooperation of the block and the slot, the position of the limit plate can be limited, so that the position of the filter box in the inner cavity of the second connecting block can be limited by the limit plate.

[0017] A further improvement of the technical solution of the utility model is that a dust collecting box is fixedly connected to the lower part of the filter box by bolts.

[0018] The above technical solution is adopted, in which the filter box and the dust collecting box are fixedly connected by bolts, so that it is convenient to separate the dust collecting box from the filter box and then to process the dust in the inner cavity of the dust collecting box.

[0019] A further improvement of the technical solution of the utility model is that an air inlet groove is opened in the middle of the connecting block three, the inner cavity of the air inlet groove is fixedly connected to the connecting plate three, and a fan is arranged at the lower part of the connecting plate three, and the fan is used to transport gas into the device.

[0020] The above technical solution is adopted. In this solution, a fan is provided to facilitate the extraction and transportation of gas around the SF6 gas transmitter body, thereby improving the efficiency of gas transportation.

[0021] A further improvement of the technical solution of the utility model is that: a clamping assembly is symmetrically arranged at the upper end of the connecting block and the lower end of the connecting block, the clamping assembly is used to connect the device to the SF6 gas transmitter body, the clamping assembly includes a support block fixedly connected to the connecting block, a pressure plate is slidably connected to the inner cavity of the support block, a threaded rod is rotatably connected to the middle part of the support block, and the threaded rod is threadedly connected to the pressure plate.

[0022] The above technical solution is adopted. In this solution, by rotating the threaded rod and utilizing the cooperation between the threaded rod and the pressure plate, the pressure plate is driven to move toward the direction of the SF6 gas transmitter body, and then the device can be fixedly connected to the SF6 gas transmitter body by utilizing the cooperation between several pressure plates and the SF6 gas transmitter body.

[0023] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0024] 1. The utility model provides an SF6 gas online sensing device for a confined space. The controller controls the motor to run regularly, and the motor drives the connecting rod to rotate, and then drives a plurality of drying chambers to rotate, so that the positions of the plurality of drying chambers can be adjusted, and then the new drying chamber can be rotated to a position adjacent to the exchange chamber, and the desiccant in the inner cavity of the new drying chamber is used to dehumidify the gas transported to the inner cavity of the exchange chamber, so that when the desiccant is replaced, manual operation can be reduced, the replacement frequency can be reduced, and the labor intensity of the staff can be reduced. Moreover, through the rotation mechanism, the new desiccant can seamlessly take over the work, avoiding the dehumidification interruption caused by saturation failure of the traditional fixed desiccant, and ensuring the stability of the gas treatment quality.

[0025] 2. The utility model provides an SF6 gas online sensing device for a confined space, which is slidably connected to the filter box through the connecting block 2, so that the filter box can be easily slid out of the inner cavity of the connecting block 2, and then the staff can process the dust filtered and collected by the filter box, avoiding excessive dust collected in the inner cavity of the filter box, which may cause blockage of the mesh holes in the inner cavity of the filter box, thereby improving the filtering quality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 The utility model is a schematic diagram of the exchange chamber Figure 1 ;

[0029] Figure 3 This is a schematic diagram of a connection block of the utility model;

[0030] Figure 4 Schematic diagram of the drying chamber of the utility model Figure 1 ;

[0031] Figure 5 It is a schematic diagram of the connecting rod of the utility model;

[0032] Figure 6 Schematic diagram of the drying chamber of the utility model Figure 2 ;

[0033] Figure 7 The utility model is a schematic diagram of the exchange chamber Figure 2 ;

[0034] Figure 8 The dust removal component of the utility model is shown in FIG. Figure 1 ;

[0035] Fig. 9The dust removal component of the utility model is shown in FIG. Figure 2 ;

[0036] Fig.10 It is a schematic diagram of the limit assembly of the utility model;

[0037] Fig.11 A schematic diagram of a fan of the utility model;

[0038] Fig.12 It is a schematic diagram of the clamping assembly of the utility model.

[0039] In the figure: 1. SF6 gas transmitter body; 2. Dust removal assembly; 21. Connection block 2; 22. Filter box; 221. Dust collection box; 23. Limit assembly; 231. Housing; 232. Block; 233. Spring; 24. Limit plate; 241. Slot; 3. Connection block 1; 31. Storage box; 4. Connection block 3; 41. Air inlet slot; 42. Connection plate 3; 43. Fan; 5. Filter plate; 6. Clamping assembly; 61. Support block; 62. Press plate; 63. Threaded rod; 7. Dehumidification assembly; 71. Connection rod; 72. Drying chamber; 73. Connection plate 1; 74. Connection plate 2; 75. Sealing block; 76. Motor; 8. Exchange chamber. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the embodiments:

[0041] Example 1

[0042] like Figures 1 to 7 As shown, the utility model provides an SF6 gas online sensing device for a confined space, including an SF6 gas transmitter body 1 and an exchange chamber 8; the exchange chamber 8 is symmetrically fixedly connected with a connection block 3, and two connection blocks 3 are provided with a dehumidification component 7 on one side close to the exchange chamber 8. The dehumidification component 7 is used to dehumidify the gas transported to the inner cavity of the exchange chamber 8. The dehumidification component 7 includes a connection plate 1 73 and a connection plate 2 74. The connection plate 1 73 and the connection plate 2 74 are connected to a connecting rod 71 on the opposite surfaces of the connecting rod 71, and a plurality of drying chambers 72 are fixedly connected to the outer surface of the connecting rod 71 in an annular array. If The inner cavity of the drying chamber 72 is filled with desiccant, a motor 76 is fixedly connected to the upper end of the connecting plate 73, and the output shaft of the motor 76 passes through the upper end of the connecting plate 73 and extends to the lower part of the connecting plate 73 and is fixedly connected to the connecting rod 71, a sealing block 75 is clamped on one side of the connecting plate 73, a dust removal component 2 is provided on the side of the exchange chamber 8 away from the SF6 gas transmitter body 1, the dust removal component 2 is used to filter the gas delivered to the inner cavity of the exchange chamber 8, the dust removal component 2 is fixedly connected to the side of the exchange chamber 8 away from the exchange chamber 8 with a connecting block 3 4, and the connecting block 3 4 is fixedly connected to the side of the dust removal component 2 away from the dust removal component 2 with a filter plate 5.

[0043] In this embodiment, the output shaft of the motor 76 is fixedly connected to the connecting rod 71, and then a plurality of drying chambers 72 are fixedly connected to the annular array on the outer surface of the connecting rod 71, and the inner cavities of the drying chambers 72 are filled with desiccant. In order to ensure the dehumidification quality of the gas in the inner cavity of the exchange chamber 8 by the desiccant, when the desiccant in the inner cavity of the drying chamber 72 adjacent to the exchange chamber 8 needs to be replaced, the motor 76 is controlled by the controller to run regularly, and the motor 76 is used to drive the connecting rod 71 to rotate, and then the plurality of drying chambers 72 can be driven to rotate, so that the positions of the plurality of drying chambers 72 can be adjusted, and then the new drying chamber 72 can be rotated to the position adjacent to the exchange chamber 8, and the desiccant in the inner cavity of the new drying chamber 72 is used to dehumidify the gas transported to the inner cavity of the exchange chamber 8, so that when the desiccant is replaced, manual operation can be reduced, the replacement frequency can be reduced, and the labor intensity of the staff can be reduced. Moreover, through the rotation mechanism, the new desiccant can seamlessly take over the work, avoiding the dehumidification interruption caused by saturation failure of the traditional fixed desiccant, and ensuring the stability of the gas treatment quality.

[0044] Example 2

[0045] like Fig.11 and Fig.12 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, an air inlet groove 41 is opened in the middle of the connecting block three 4, and the inner cavity of the air inlet groove 41 is fixedly connected to a connecting plate three 42, and a fan 43 is arranged at the lower part of the connecting plate three 42, and the fan 43 is used to transport the gas into the device, and the upper end of the connecting block one 3 and the lower end of the connecting block one 3 are symmetrically provided with a clamping assembly 6, and the clamping assembly 6 is used to connect the device to the SF6 gas transmitter body 1, and the clamping assembly 6 includes a support block 61 fixedly connected to the connecting block one 3, and the inner cavity of the support block 61 is slidably connected to a pressure plate 62, and the middle part of the support block 61 is rotatably connected to a threaded rod 63, and the threaded rod 63 is threadedly connected to the pressure plate 62.

[0046] In this embodiment, when it is necessary to detect the SF6 gas concentration in a confined space, it is necessary to filter the detected gas to reduce the moisture and dust impurity content in the gas. First, the device needs to be connected to the SF6 gas transmitter body 1. After aligning the air holes on the exchange chamber 8 with the air inlet holes on the SF6 gas transmitter body 1, the threaded rod 63 is rotated to drive the pressure plate 62 to move in the inner cavity of the support block 61 toward the SF6 gas transmitter body 1. Then, with the cooperation of several pressure plates 62, the device and the SF6 gas transmitter body 1 can be fixed together to temporarily form a whole. Then, the controller controls the operation of the fan 43, and the fan 43 is used to extract and transport the gas around the SF6 gas transmitter body 1. Then, these gases will first pass through the filter plate 5, and then use the filter Plate 5 intercepts some larger particle impurities in the gas, and then these gases are transported to the inner cavity of the filter box 22 through the air inlet groove 41, and then the gases are further filtered and intercepted by the filter box 22, which can reduce dust impurities in the gas, and then these gases are transported to the inner cavity of the exchange chamber 8. Since the inner cavity of the exchange chamber 8 is connected with the inner cavity of the connecting block 3, and the inner cavity of the connecting rod 71 adjacent to the exchange chamber 8 is filled with desiccant, the gas transported to the inner cavity of the exchange chamber 8 will contact the desiccant in the inner cavity of the adjacent connecting rod 71, and the desiccant is used to reduce the water vapor in the gas, and then these dehumidified and dust-free gases will be transported to the inner cavity of the SF6 gas transmitter body 1, and then these gases will be detected by the SF6 gas transmitter body 1 to measure the gas concentration of the SF clamping assembly 6 in the confined space.

[0047] Example 3

[0048] like Figure 7 As shown, on the basis of Example 2, the utility model provides a technical solution: preferably, a receiving box 31 is slidably connected to the lower part of the connecting block 3, the connecting block 3 is fixedly connected to the exchange chamber 8, the connecting plate 1 73 and the connecting plate 2 74 are fixedly connected to the connecting block 3, and the drying chamber 72 is rotatably connected to the connecting block 3.

[0049] In this embodiment, when the desiccant needs to be replaced, the controller controls the motor 76 to run regularly, and the output shaft of the motor 76 is used to drive the connecting rod 71 to rotate, and then the plurality of drying chambers 72 can be driven to adjust their positions, and the drying chamber 72 that was previously adjacent to the exchange chamber 8 can be rotated to another position, and then the drying chamber 72 containing unused desiccant will be rotated and adjusted to a position adjacent to the exchange chamber 8, and the used desiccant will be adjusted to above the outlet of the connecting plate 2 74 as the drying chamber 72 rotates, and then under the action of gravity, the used desiccant will fall into the inner cavity of the storage box 31, and be collected by the storage box 31. When the desiccant in the inner cavity of the plurality of drying chambers 72 is After all of them have been used, the staff needs to replenish them all by separating the sealing block 75 from the inner cavity of the motor 76, releasing the seal of the inner cavity of the motor 76, and then filling the new desiccant into the inner cavity of the drying chamber 72 through the inner cavity of the motor 76, and then running the motor 76 to drive the connecting rod 71 and the plurality of drying chambers 72 to rotate, so that the inner cavities of the plurality of drying chambers 72 can be filled with new desiccant, and then the sealing block 75 can be reset, and then the storage box 31 can be separated from the connecting block 3, and then the desiccant collected in the inner cavity of the storage box 31 can be processed, and then the storage box 31 can be reset, thereby reducing the number of times the workers replace the desiccant.

[0050] Example 4

[0051] like Figures 8 to 10 As shown, on the basis of Example 3, the utility model provides a technical solution: preferably, the dust removal component 2 includes a connecting block 21 fixedly connected to the exchange chamber 8, the inner cavity of the connecting block 21 is slidably connected to a filter box 22, the lower part of the connecting block 21 is symmetrically slidably connected to a limit plate 24, the lower part of the connecting block 21 is symmetrically provided with a limit component 23, the limit component 23 is used to limit the position of the limit plate 24, the limit component 23 includes a shell 231 fixedly connected to the connecting block 21, the inner cavity of the shell 231 is slidably connected to a block 232, the inner cavity of the shell 231 is provided with a spring 233, the side of the spring 233 close to the block 232 is fixedly connected to the block 232, the side of the spring 233 away from the block 232 is fixedly connected to the inner wall of the shell 231, the upper end of the limit plate 24 is close to the block 232. A card slot 241 used in conjunction with the block 232 is opened, and the lower part of the filter box 22 is fixedly connected to a dust collecting box 221 by bolts.

[0052] In the present embodiment, when the dust collected in the inner cavity of the dust collecting box 221 needs to be processed, a force is applied to the limit plate 24 to drive the limit plate 24 to move in a direction away from the dust collecting box 221. When the limit plate 24 moves, a force is applied to the block 232 to drive the block 232 to move from the inner cavity of the card slot 241 in the direction of the spring 233, and then the spring 233 is driven to contract, thereby driving the block 232 to enter the inner cavity of the shell 231, releasing the position limit of the limit plate 24, and when the limit plate 24 moves to a suitable position, After the dust box 221 is in the position, the position restriction of the dust box 221 will be released, and the staff can then apply force to the dust box 221 to drive the dust box 221 to move downward, which will then drive the filter box 22 to slide downward in the inner cavity of the connecting block 21. Since the filter box 22 and the dust box 221 are fixedly connected by bolts, the position restriction of the filter box 22 and the dust box 221 can be released by turning the bolts, and then the dust box 221 can be separated from the filter box 22, thereby facilitating the staff to handle the dust in the inner cavity of the dust box 221.

[0053] The following is a detailed description of the working principle of the SF6 gas online sensing device used in confined spaces.

[0054] like Figure 1-Figure 12As shown, when it is necessary to detect the SF6 gas concentration in a confined space, the detected gas needs to be filtered to reduce the moisture and dust impurity content in the gas. First, the device needs to be connected to the SF6 gas transmitter body 1. After aligning the air holes on the exchange chamber 8 with the air inlet holes on the SF6 gas transmitter body 1, the threaded rod 63 is rotated to drive the pressure plate 62 to move in the inner cavity of the support block 61 toward the SF6 gas transmitter body 1. Then, with the cooperation of several pressure plates 62, the device and the SF6 gas transmitter body 1 can be fixed together to temporarily form a whole. Then, the controller controls the operation of the fan 43, and the fan 43 is used to extract and transport the gas around the SF6 gas transmitter body 1. Then, these gases will first pass through the filter plate 5, and the filter plate 5 will be used to filter the gas. Some larger particle impurities in the gas are intercepted, and then these gases are transported to the inner cavity of the filter box 22 through the air inlet groove 41, and then these gases are further filtered and intercepted by the filter box 22, which can reduce dust impurities in the gas, and then these gases are transported to the inner cavity of the exchange chamber 8. Since the inner cavity of the exchange chamber 8 is connected with the inner cavity of the connecting block 3, and the inner cavity of the connecting rod 71 adjacent to the exchange chamber 8 is filled with desiccant, the gas transported to the inner cavity of the exchange chamber 8 will contact the desiccant in the inner cavity of the adjacent connecting rod 71, and the desiccant is used to reduce the water vapor in the gas, and then these dehumidified and dust-free gases will be transported to the inner cavity of the SF6 gas transmitter body 1, and then these gases are detected by the SF6 gas transmitter body 1 to measure the gas concentration of the SF clamping assembly 6 in the confined space;

[0055] When the desiccant needs to be replaced, the controller controls the motor 76 to run regularly, and the output shaft of the motor 76 drives the connecting rod 71 to rotate, and then drives the plurality of drying chambers 72 to adjust their positions, and can rotate the drying chamber 72 that was previously adjacent to the exchange chamber 8 to another position, and then the drying chamber 72 containing unused desiccant will be rotated and adjusted to a position adjacent to the exchange chamber 8, and the used desiccant will be adjusted to above the outlet of the connecting plate 2 74 as the drying chamber 72 rotates, and then under the action of gravity, the used desiccant will fall into the inner cavity of the storage box 31, and be collected by the storage box 31, and when the desiccant in the inner cavities of the plurality of drying chambers 72 has been used, After use, the staff needs to replenish all of them by separating the sealing block 75 from the inner cavity of the motor 76, releasing the seal of the inner cavity of the motor 76, and then filling the inner cavity of the drying chamber 72 with new desiccant through the inner cavity of the motor 76, and then running the motor 76 to drive the connecting rod 71 and the plurality of drying chambers 72 to rotate, so that the inner cavities of the plurality of drying chambers 72 can be filled with new desiccant, and then the sealing block 75 can be reset, and then the storage box 31 can be separated from the connecting block 3, and then the desiccant collected in the inner cavity of the storage box 31 can be processed, and then the storage box 31 can be reset, so as to reduce the number of times the workers replace the desiccant;

[0056] When the dust collected in the inner cavity of the dust box 221 needs to be processed, a force is applied to the limit plate 24 to drive the limit plate 24 to move in a direction away from the dust box 221. When the limit plate 24 moves, a force is applied to the block 232 to drive the block 232 to move from the inner cavity of the card slot 241 toward the direction of the spring 233, and then the spring 233 is driven to contract, thereby driving the block 232 to enter the inner cavity of the shell 231, releasing the position limit of the limit plate 24. After the limit plate 24 moves to a suitable position , the position restriction of the dust box 221 will be released, and then the staff can apply force to the dust box 221 to drive the dust box 221 to move downward, and then drive the filter box 22 to slide downward in the inner cavity of the connecting block 21. Since the filter box 22 and the dust box 221 are fixedly connected by bolts, the position restriction of the filter box 22 and the dust box 221 can be released by turning the bolts, and then the dust box 221 can be separated from the filter box 22, so that the staff can handle the dust in the inner cavity of the dust box 221.

[0057] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An SF6 gas online sensing device for a confined space, comprising an SF6 gas transmitter body (1) and an exchange chamber (8); characterized in that: The exchange chamber (8) is symmetrically fixedly connected to a connection block 1 (3); a dehumidification assembly (7) is provided on one side of the two connection blocks 1 (3) close to the exchange chamber (8); the dehumidification assembly (7) is used to dehumidify the gas transported to the inner cavity of the exchange chamber (8); the dehumidification assembly (7) comprises a connection plate 1 (73) and a connection plate 2 (74); the connection plate 1 (73) and the connection plate 2 (74) are connected to a connection rod (71) at opposite surfaces thereof for rotation together; a plurality of drying chambers (72) are fixedly connected to the outer surface of the connection rod (71) in an annular array; the inner cavities of the plurality of drying chambers (72) are filled with a desiccant; the connection plate 1 (73) is provided with a dehumidification agent. A motor (76) is fixedly connected to the end thereof, and an output shaft of the motor (76) passes through the upper end of the connecting plate one (73) and extends to the lower part of the connecting plate one (73) and is fixedly connected to the connecting rod (71); a sealing block (75) is clamped on one side of the connecting plate one (73); a dust removal component (2) is provided on the side of the exchange chamber (8) away from the SF6 gas transmitter body (1); the dust removal component (2) is used to filter the gas delivered to the inner cavity of the exchange chamber (8); a connecting block three (4) is fixedly connected to the side of the dust removal component (2) away from the exchange chamber (8); and a filter plate (5) is fixedly connected to the side of the connecting block three (4) away from the dust removal component (2).

2. The SF6 gas online sensing device for a confined space according to claim 1, characterized in that: The lower part of the connection block 1 (3) is slidably connected to a storage box (31); the connection block 1 (3) is fixedly connected to the exchange chamber (8); the connection plate 1 (73) and the connection plate 2 (74) are fixedly connected to the connection block 1 (3); and the drying chamber (72) is rotatably connected to the connection block 1 (3).

3. The SF6 gas online sensing device for a confined space according to claim 1, characterized in that: The dust removal component (2) comprises a second connection block (21) fixedly connected to the exchange chamber (8); a filter box (22) is slidably connected to the inner cavity of the second connection block (21); a limit plate (24) is symmetrically slidably connected to the lower portion of the second connection block (21); a limit component (23) is symmetrically arranged at the lower portion of the second connection block (21); the limit component (23) is used to limit the position of the limit plate (24).

4. The SF6 gas online sensing device for a confined space according to claim 3 is characterized in that: The limiting assembly (23) comprises a shell (231) fixedly connected to the second connecting block (21); a block (232) is slidably connected to the inner cavity of the shell (231); a spring (233) is arranged in the inner cavity of the shell (231); a side of the spring (233) close to the block (232) is fixedly connected to the block (232); a side of the spring (233) away from the block (232) is fixedly connected to the inner wall of the shell (231); and a slot (241) for use with the block (232) is provided on a side of the upper end of the limiting plate (24) close to the block (232).

5. The SF6 gas online sensing device for a confined space according to claim 4, characterized in that: The lower part of the filter box (22) is fixedly connected to a dust collecting box (221) via bolts.

6. The SF6 gas online sensing device for a confined space according to claim 1, characterized in that: An air inlet groove (41) is provided in the middle of the connecting block three (4), a connecting plate three (42) is fixedly connected to the inner cavity of the air inlet groove (41), a fan (43) is provided at the lower part of the connecting plate three (42), and the fan (43) is used to transport gas into the device.

7. The SF6 gas online sensing device for a confined space according to claim 2, characterized in that: The upper end of the connection block 1 (3) and the lower end of the connection block 1 (3) are symmetrically provided with a clamping assembly (6), the clamping assembly (6) is used to connect the device to the SF6 gas transmitter body (1), the clamping assembly (6) comprises a support block (61) fixedly connected to the connection block 1 (3), a pressure plate (62) is slidably connected to the inner cavity of the support block (61), a threaded rod (63) is rotatably connected to the middle part of the support block (61), and the threaded rod (63) is threadedly connected to the pressure plate (62).

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