SF6 mixed gas intelligent gas supplementing equipment and use method thereof

Abstract

The application discloses a kind of SF6 Mixed gas intelligent air supplement equipment, belong to SF6 Mixed gas air supplement technical field.A kind of SF6 Mixed gas intelligent air supplement equipment includes air supplement equipment machine, buffer device is installed below air supplement equipment machine, organism cover is installed above air supplement equipment machine, handle is fixed on the outer surface of organism cover, machine box is provided in air supplement equipment machine, installation groove is opened in machine box, operating device is installed in installation groove;Panel is provided in operating device, air supplement assembly is provided below panel.The application is connected by its gas cylinder and its inlet and outlet, the operation of internal air supplement assembly is completed under the system operation of liquid crystal screen on panel, so that its gas inlet is connected with the measured volume equipment, then SF6 gas temperature is monitored by built-in temperature module, gas purity is detected by purity detector, finally the demand of fast and accurate filling, air supplement is realized under the cooperation of valve group gas path switching.

Description

Technical Field

[0001] This invention relates to the field of SF6 mixed gas replenishment technology, and in particular to an intelligent SF6 mixed gas replenishment device and its usage method. Background Technology

[0002] SF6 gas is widely used in electrical equipment due to its excellent insulation and arc-quenching properties. However, the greenhouse effect of SF6 gas is more than 23,900 times that of CO2. It can exist stably in the air for more than 3,200 years and is one of the six greenhouse gases that are prohibited from being emitted. In order to cope with global climate change and reduce the use of SF6 gas as a greenhouse gas, people have begun to try to use mixed gases to replace pure SF6 insulating gas.

[0003] However, the existing technology has the following shortcomings: the on-site gas filling method for mixed gas is outdated. Currently, the gas filling of mixed gas equipment mainly adopts the partial pressure filling method, which is difficult to accurately control the filling volume and has large operational errors. At the same time, improper on-site gas replenishment measures for mixed gas will inevitably lead to leakage or seepage during long-term operation of the equipment. In order to ensure the insulation and arc extinguishing performance of the circuit breaker, it is necessary to perform gas replenishment operation. On-site, because there is often no pure N2 gas, only SF6 gas is filled for replenishment, which makes the test data of SF6 content too high. It cannot meet the requirements of rapid and accurate filling and replenishment of mixed gas insulation equipment. In addition, it does not have shock absorption and portability design, making it inconvenient to carry. External vibrations can easily interfere with internal precision components. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an intelligent SF6 mixed gas replenishment device and its usage method. This addresses the problems of existing technologies, such as difficulty in accurately controlling the gas volume, large operational errors, improper on-site gas replenishment measures leading to unavoidable leakage during prolonged operation, and the necessity of gas replenishment to ensure circuit breaker insulation and arc-extinguishing performance. However, due to the lack of pure N2 gas on-site, SF6 gas is often used for replenishment, resulting in inflated SF6 content readings and failing to meet the requirements for rapid and accurate gas replenishment in mixed gas insulation devices.

[0005] The present invention adopts the following technical solution.

[0006] An intelligent SF6 mixed gas replenishment device includes a replenishment unit. A buffer device is installed below the replenishment unit to support it and reduce external interference to the precision components inside. A cover is installed on top of the replenishment unit, and a lifting handle is fixed to the outer surface of the cover for lifting the device. A housing is installed inside the replenishment unit, and an installation slot is provided inside the housing. An operating device is installed in the installation slot to control the operation of the device. The operating device is equipped with a panel, and an air supply component is located below the panel. An LCD screen is embedded in the panel. A USB port is installed on one side of the LCD screen, an indicator light group is located next to the USB port, and a serial port is located next to the indicator light group. A power supply is installed on the other side of the LCD screen. An air inlet and an air outlet are respectively provided on the panel for connecting to the air circuit.

[0007] As an improvement, the gas replenishment assembly is equipped with a double-layer bracket. A main board is mounted on the upper layer of the double-layer bracket, a charging management board is mounted on one side of the main board, and a data acquisition board is mounted above the charging management board. A valve group is mounted on the lower layer of the double-layer bracket, a pressure transmitter is connected to the front of the valve group, a temperature module is located next to the pressure transmitter, a purity detector is located on the side wall of the main board, a mass flow meter runs through the double-layer bracket, a battery is located next to the temperature module, and the gas replenishment assembly also includes an MFC. A pressure reducing valve is connected to the front end of the MFC, and a solenoid valve is connected to the rear end. The pressure reducing valve is connected to the pressure transmitter, and the solenoid valve is connected to the valve group.

[0008] As an improvement, the battery powers the components on the double-layer bracket, the motherboard is connected to the LCD screen, the indicator light group includes a status light, an undervoltage light, and a charging light, the serial port is connected to the motherboard, the temperature module is connected to the air inlet via a pipe, the air outlet is connected to the valve group via a pipe, the temperature module is connected to the valve group via a pipe, the pressure transmitter works with the valve group, the valve group is connected to the purity detector via a pipe, the purity detector is connected to the mass flow meter via a pipe, and the battery is connected to the power harness.

[0009] As an improvement, an even number of side frames are provided on both sides of the chassis, and a connecting block is fixed between each side frame. Multiple pairs of hinge platforms are fixed on the side wall of the chassis, and a swinging leaf is fixed between each pair of hinge platforms. An even number of locking blocks are fixed on the outer wall of the chassis, and a fixing clip is provided next to each locking block.

[0010] As an improvement, the hinge platform is hinged to the body cover via the swinging leaf, the side frame is connected to the buffer device via the connecting block, and the locking block and the fixing clip are both fixed to the body cover, and the locking block and the fixing clip on the body cover correspond to the locking block and the fixing clip on the chassis.

[0011] As an improvement, the buffer device is provided with an outer protective frame, and an integrated inner support frame is fixed inside the outer protective frame. An even number of force springs are fixed on the upper surface of the outer protective frame, and a damping rod is nested inside each of the force springs. A buffer pad is fixed on the inner surface of the inner support frame. An even number of auxiliary grooves are opened on the outer protective frame, and a back load plate is installed in each of the auxiliary grooves.

[0012] As an improvement, the lower surface of the inner support frame is provided with an even number of card slots, the top of the card slots is provided with locking holes, the back load plate is provided with a rotating shaft plate, the top of the rotating shaft plate is installed with an alignment lock, the inner surface of the rotating shaft plate is installed with a stretchable shoulder strap, the surface of the rotating shaft plate is fixed with a reinforcing drum, and an inner reinforcing pull rope is nested inside the reinforcing drum.

[0013] As an improvement, the buffer pad is located directly below the chassis, the top of the damping rod passes through the connecting block, and the chassis is suspended on the buffer device by the damping rod and the force spring.

[0014] A method of using an intelligent SF6 mixed gas replenishment device, based on the intelligent SF6 mixed gas replenishment device according to any one of claims 1-9, is characterized by specifically including the following steps: Step 1: Use the handle to lift the device by hand to move it to the designated position. If the distance is far, the inner fixing rope and the fixing clamp at the front of the chassis will form a fixing force. Finally, with the help of the stretchable shoulder strap, the outer protective frame and the chassis above can be carried on the back. Step 2: During the carrying process, the damping rod and the force spring contract to provide a buffering effect; Step 3: By connecting the gas cylinder supplying the gas to its inlet and outlet, the internal gas replenishment component is operated under the control of the LCD screen system on the panel, so that its air inlet is connected to the device under test. When the internal device under test is judged to have insufficient gas, the MFC triggers compensation, and finally the gas is replenished with the cooperation of the valve group.

[0015] The beneficial effects of this invention are that, compared with the prior art, 1. This invention connects the gas cylinder to its inlet and outlet, and operates the internal gas replenishment component under the control of the LCD screen system on the panel. It connects the gas inlet to the device being measured, and then monitors the SF6 gas temperature with the built-in temperature module and detects the gas purity with the purity detector. Finally, with the cooperation of the valve group's gas path switching, it achieves the need for rapid and accurate filling and replenishment. Compared with the pressure-dividing filling valve, it can more accurately control the filling volume and avoid excessive errors.

[0016] 2. The present invention supports the chassis by means of a damping rod in the buffer device and a force spring, so that it is suspended above the buffer device. This avoids the adverse effects of vibration and impact on the electronic components and connecting pipes inside the chassis during carrying, and also provides preliminary protection for the area around the chassis.

[0017] 3. The present invention utilizes the back load plate inside the outer protective frame. When the installation position is far away and it is inconvenient to carry it by hand for a long time, the pivot plate can be flipped outward and reversed in the auxiliary groove. Furthermore, the internal fixed pull rope and the fixed clamp at the front of the chassis form a fixed pull force. Finally, with the cooperation of the stretchable shoulder strap, the outer protective frame and the chassis above can be carried on the back, making it more convenient and easy to carry for a long time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an intelligent SF6 mixed gas replenishment device according to the present invention; Figure 2 This is a rear view structural schematic diagram of an intelligent SF6 mixed gas replenishment device according to the present invention; Figure 3 This is a schematic diagram of the bottom structure of the buffer device in an intelligent SF6 mixed gas replenishment device of the present invention; Figure 4 This is a three-dimensional structural diagram of the chassis in an intelligent SF6 mixed gas replenishment device of the present invention; Figure 5 This is a three-dimensional structural diagram of the operating device in an intelligent SF6 mixed gas replenishment device of the present invention; Figure 6 This is a three-dimensional structural diagram of the gas replenishment component in an intelligent gas replenishment device for SF6 mixed gas according to the present invention; Figure 7 This is a three-dimensional structural diagram of the buffer device in an intelligent SF6 mixed gas replenishment device of the present invention; Figure 8 This is a bottom view of the outer protective frame structure in an intelligent SF6 mixed gas replenishment device of the present invention; Figure 9 This is a bottom view of the rotating shaft plate in an intelligent SF6 mixed gas replenishment device of the present invention; Figure 10 This is a logical diagram of the gas path in an intelligent SF6 mixed gas replenishment device of the present invention.

[0019] In the diagram: Air supply equipment - 1, Buffer device - 2, Body cover - 3, Lifting handle - 4, Chassis - 11, Side frame - 12, Connecting block - 13, Hinge platform - 14, Swinging blade - 15, Outer protective frame - 21, Inner support frame - 22, Buffer pad - 23, Force spring - 24, Damping rod - 25, Pad block - 26, Auxiliary drive groove - 27, Back load plate - 28, Mounting groove - 111, Operating device - 112, Locking block - 113, Fixing clamp - 114, Card slot - 221, Locking plate hole - 222, Rotating shaft plate - 281, Alignment lock - 282, Stretchable shoulder strap - 283, Reinforced drum - 2 84. Internal retaining rope - 285. Panel - 1121. LCD screen - 1122. Indicator light group - 1123. Serial port - 1124. Air inlet - 1125. Air outlet - 1126. Power supply - 1127. USB port - 1128. Air replenishment component - 1129. Mass flow meter - 11290. Double-layer bracket - 11291. Temperature module - 11292. Pressure transmitter - 11293. Battery - 11294. Data acquisition board - 11295. Charging management board - 11296. Purity detector - 11297. Main board - 11298. Valve group - 11299. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this invention.

[0021] Example 1 An intelligent SF6 mixed gas replenishment device includes a replenishment device 1. A buffer device 2 is installed below the replenishment device 1 to support it and reduce external interference to the precision components inside. An organic cover 3 is installed on top of the replenishment device 1, and a lifting handle 4 is fixed to the outer surface of the cover 3 for lifting the device. A housing 11 is installed inside the replenishment device 1, and an installation slot 111 is provided inside the housing 11. An operating device 112 is installed in the installation slot 111 to control the operation of the device. The operating device 112 includes a panel 1121, with an air supply component 1129 located below it. An LCD screen 1122 is embedded in the panel 1121. A USB port 1128 is installed on one side of the LCD screen 1122, with an indicator light group 1123 next to it and a serial port 1124 next to the indicator light group 1123. A power supply 1127 is installed on the other side of the LCD screen 1122. An air inlet 1125 and an air outlet 1126 are provided on the panel 1121 for connecting to the air path. The LCD screen 1122 is mainly used for displaying the system page. The indicator light group 1123 illuminates accordingly based on the connection status during operation. The panel 1121 consists of an ultra-low power main MCU, a secondary MCU, and circuitry, forming an MCU control system.

[0022] In a preferred but non-limiting embodiment of the present invention, a double-layer bracket 11291 is provided inside the gas replenishment component 1129. A main board 11298 is mounted on the upper layer of the double-layer bracket 11291. A charging management board 11296 is mounted on one side of the main board 11298. A data acquisition board 11295 is mounted above the charging management board 11296. A valve assembly 11299 is mounted on the lower layer of the double-layer bracket 11291. A pressure transmitter 11293 is connected in front of the valve assembly 11299. A temperature module 11292 is installed next to the main board 11298, a purity detector 11297 is installed on the side wall of the main board 11298, a mass flow meter 11290 runs through the double-layer bracket 11291, a battery 11294 is installed next to the temperature module 11292, and the gas replenishment assembly 1129 also includes an MFC, with a pressure reducing valve connected to the front end of the MFC and a solenoid valve connected to the rear end. The pressure reducing valve is connected to the pressure transmitter 11293, and the solenoid valve is connected to the valve assembly 11299. The valve assembly 11299 adopts a modular design with solenoid valves to facilitate pipeline switching, enabling precise adjustment during gas output or conversion. With the assistance of the mass flow meter 11290, the mass flow rate of the incoming gas can be monitored, and with the cooperation of the purity detector 11297 and the temperature module 11292, intelligent monitoring can be achieved, while temperature and purity compensation can be completed.

[0023] In a preferred but non-limiting embodiment of the present invention, the battery 11294 is used to power the components on the double-layer bracket 11291, the motherboard 11298 is connected to the LCD screen 1122, the indicator light group 1123 has a built-in status light, undervoltage light, and charging light, the serial port 1124 is connected to the motherboard 11298, the temperature module 11292 is connected to the air inlet 1125 through a pipe, the air outlet 1126 is connected to the valve group 11299 through a pipe, the temperature module 11292 is connected to the valve group 11299 through a pipe, the pressure transmitter 11293 cooperates with the valve group 11299, the valve group 11299 is connected to the purity detector 11297 through a pipe, the purity detector 11297 is connected to the mass flow meter 11290 through a pipe, and the battery 11294 is connected to the power supply 1127 wiring harness. The indicator light group 1123 includes a status light, an undervoltage light, and a charging light. The status light indicates the instrument's operating status, the undervoltage light indicates that the instrument is undervoltage and should be charged in time, and the charging light indicates that the instrument is charging. The indicator light is red during the charging process and green when the instrument is fully charged.

[0024] In a preferred but non-limiting embodiment of the present invention, an even number of side brackets 12 are provided on both sides of the chassis 11, and connecting blocks 13 are fixed between each side bracket 12. A hinge platform 14 is fixed to the side wall of the chassis 11, and a swinging flap 15 is fixed between the hinge platforms 14. An even number of locking blocks 113 are fixed to the outer wall of the chassis 11, and fixing clips 114 are provided next to each locking block 113. The side brackets 12 on both sides of the chassis 11 mainly serve to fix the connecting blocks 13, and with the assistance of the connecting blocks 13, the chassis 11 is suspended above the buffer device 2, thus providing a cushioning and shock absorption effect for the chassis 11.

[0025] In a preferred but non-limiting embodiment of the present invention, the hinge platform 14 is hinged to the body cover 3 via the swinging leaf 15, the side connecting frame 12 is connected to the buffer device 2 via the connecting block 13, and the locking block 113 and the fixing clip 114 are both fixed to the collective cover and correspond to the locking block 113 and the fixing clip 114 on the chassis 11. The locking block 113 and the fixing clip 114 on the chassis 11 are mainly used to cooperate with the locking block 113 and the fixing clip 114 on the body cover 3. With the cooperation of the locking block 113, the chassis 11 can be tightly closed, while with the cooperation of the fixing clip 114, the structure on the buffer device 2 can be fixed.

[0026] In a preferred but non-limiting embodiment of the present invention, the buffer device 2 is provided with an outer protective frame 21, four pads 26 are provided at the bottom of the outer protective frame 21, an integrated inner support frame 22 is fixed inside the outer protective frame 21, an even number of force springs 24 are fixed on the upper surface of the outer protective frame 21, each of the force springs 24 has a damping rod 25 nested inside, a buffer pad 23 is fixed on the inner surface of the inner support frame 22, and an even number of auxiliary grooves 27 are provided on the outer protective frame 21, each of the auxiliary grooves 27 has a back load plate 28 installed inside. The buffer pad 23 mainly provides corresponding support to the bottom of the chassis 11 when the amplitude of vibration is too large. Through its own restoring property, it can better protect the chassis 11, so that it will not be impacted by vibration and cause the internal components to shrink.

[0027] In a preferred but non-limiting embodiment of the present invention, the lower surface of the inner support frame 22 is provided with an even number of locking slots 221, and the top of the locking slots 221 is provided with locking holes 222. A rotating shaft plate 281 is provided inside the back load plate 28, and an alignment lock 282 is installed on the top of the rotating shaft plate 281. A stretchable shoulder strap 283 is installed on the inner surface of the rotating shaft plate 281, and a reinforcing drum 284 is fixed to the surface of the rotating shaft plate 281. An inner fixing pull rope 285 is nested inside the reinforcing drum 284. The inner fixing pull rope 285 mainly serves to engage and fix with the fixing clamp 114, and also to generate tension between the rotating shaft plate 281 and the fixing clamp 114, allowing the rotating shaft plate 281 to swing upwards, making it more convenient for users to carry the SF6 mixed gas intelligent gas replenishment equipment.

[0028] In a preferred but non-limiting embodiment of the present invention, the pivot plate 281 is hinged to the auxiliary groove 27, the alignment lock 282 engages with the clamping groove 221, the stretchable shoulder strap 283 located on the inner surface of the pivot plate 281 can be stretched in length, the inner fixing rope 285 inside the reinforcing drum 284 can be stretched in length, and the top of the inner fixing rope 285 is fixed to the fixing clamp 114. The inner fixing rope 285 mainly forms a tension by fixing one end to the surface of the pivot plate 281 and the other end to the fixing clamp 114, so that the pivot plate 281 forms a certain angle, and then, with the assistance of the stretchable shoulder strap 283 in front of the pivot plate 281, it completes the carrying of the buffer device 2 and the air replenishment equipment 1.

[0029] In a preferred but non-limiting embodiment of the present invention, the buffer pad 23 is disposed directly below the chassis 11, the top of the damping rod 25 passes through the connecting block 13, and the chassis 11 is suspended above the buffer device 2 by the damping rod 25 and the force spring 24. The damping rod 25, in conjunction with the force spring 24, mainly works to suspend and fix the chassis 11, preventing adverse effects on the internal electronic components of the chassis 11 due to the bumps and jolting of passing vehicles when it is placed on a moving vehicle.

[0030] Example 2 A method for using an intelligent SF6 mixed gas replenishment device includes the following steps: Step 1: Use the handle 4 to lift the device and move it to the designated position. If the distance is far, flip the rotating plate 281 outward and change direction in the auxiliary groove 27. The inner fixing rope 285 and the fixing clamp 114 at the front of the chassis 11 form a fixing force. Finally, with the cooperation of the stretchable shoulder strap 283, the outer protective frame 21 and the chassis 11 above can be carried on the back. Step 2: The damping rod 25 in the buffer device 2, together with the force spring 24, supports the chassis 11, making it suspended above the buffer device 2. During the carrying process, the contraction of the damping rod 25 and the force spring 24 plays a buffering role. Step 3: By connecting the gas cylinder supplying the gas to its inlet and outlet, the internal gas replenishment component 1129 is operated under the system control of the LCD screen 1122 on the panel 1121. Its inlet 1125 is connected to the device under test. The built-in temperature module 11292 monitors the SF6 gas temperature, and the purity detector 11297 detects gas purity. When the internal device under test is determined to have insufficient gas, the MFC triggers compensation. The MFC is connected to a pressure reducing valve at the front end and a solenoid valve at the rear end, precisely controlling the flow rate during the filling process, testing the mixing ratio, and determining the effective volume. During the compensation process, the temperature module 11292 measures the temperature, the mass flow meter 11290 monitors the flow rate, and the purity detector 11297 monitors the incoming SF6 mixed gas. Finally, with the cooperation of the valve group 11299, the gas is replenished, while excess gas is output to the gas collection bag by the pressure transmitter 11293 through the gas outlet 1126. With the cooperation of the acquisition board 11295 and the main board 11298, the hardware scheme can be viewed in detail, achieving high-precision intelligent compensation of SF6 mixed gas. Finally, with the cooperation of the gas path switching of the valve group 11299, the needs for rapid and accurate filling and replenishment of gas are met.

[0031] The specific working principle is as follows: This invention involves placing the gas replenishment device 1 and its connected buffer device 2 in a designated position. The cover 3 is then opened with the assistance of a swinging flap 15 within the hinged platform 14 of the chassis 11. Simultaneously, the side frame 12, connecting block 13, and their buffer device 2 support the gas replenishment device 1. After opening, the operating device 112 in the mounting slot 111 within the chassis 11 is controlled by the LCD screen 1122 on the panel 1121, activating the system. The air inlet 1125 connects to the device being tested, while the air outlet 1126 connects to the gas collection bag. When the internal device being tested is deemed to have insufficient gas, the MFC (Mechanical Control Center) triggers compensation. The MFC front end... The system connects to a pressure reducing valve and a solenoid valve at the rear end to precisely control the flow rate during the inflation process, mixing ratio testing, and effective volume measurement. Simultaneously, during compensation, temperature module 11292 measures the temperature, mass flow meter 11290 monitors the flow rate, and purity detector 11297 monitors the incoming SF6 mixed gas. Finally, with the cooperation of valve assembly 11299, gas replenishment is completed, while excess gas is output to the gas collection bag through outlet 1126 of pressure transmitter 11293. Furthermore, with the cooperation of acquisition board 11295 and main board 11298, detailed hardware solutions can be viewed, achieving high-precision intelligent compensation of the SF6 mixed gas.

[0032] The present invention provides shock-absorbing support for the bottom of the chassis by setting a buffer pad 23 on the outer protective frame 21 and the internal support frame 22. The force spring 24 and damping rod 25 installed on both sides can suspend the chassis 11, so that the external bumps during the carrying process can be absorbed by the damping rod 25 and the force spring 24, avoiding the interference of external vibrations on the internal precision components.

[0033] This invention installs the rotating shaft plate 281 in the card slot 221, and the locking plate hole 222 cooperates with the positioning lock 282 to limit the rotating shaft plate 281. In use, the rotating shaft plate 281 swings on the damping rod 25, allowing the inner fixing rope 285 in the reinforcing drum 284 to be pulled outward to a certain length and then fixed with the fixing clamp, thus achieving tensile support for the rotating shaft plate 281. Then, the carrier can adjust the stretchable shoulder strap 283 and carry the cushioning device along with the air replenishment device 1. Compared with the existing carrying methods, it is more convenient and easier.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. An intelligent SF6 mixed gas replenishment device, characterized in that: The device includes a gas replenishment equipment (1), with a buffer device (2) installed below the gas replenishment equipment (1) to support it and reduce external interference to the precision components inside the gas replenishment equipment (1). An organic cover (3) is installed on top of the gas replenishment equipment (1), and a lifting handle (4) is fixed on the outer surface of the cover (3) for lifting the device. A housing (11) is installed inside the gas replenishment equipment (1), and even-numbered side brackets (12) are provided on both sides of the housing (11). Connecting blocks (13) are fixed between the side frames (12). Multiple pairs of hinged platforms (14) are fixed to the side wall of the chassis (11). A swinging leaf (15) is provided between each pair of hinged platforms (14). An even number of locking blocks (113) are fixed to the outer wall of the chassis (11). A fixing clip (114) is provided next to each locking block (113). An installation slot (111) is provided inside the chassis (11). An operating device (112) is installed in the installation slot (111) to control the operation of the equipment. The operating device (112) is provided with a panel (1121), and an air supply component (1129) is provided below the panel (1121). An LCD screen (1122) is embedded in the panel (1121). A USB port (1128) is installed on one side of the LCD screen (1122). An indicator light group (1123) is provided next to the USB port (1128). A serial port (1124) is provided next to the indicator light group (1123). A power supply (1127) is installed on the other side of the LCD screen (1122). An air inlet (1125) and an air outlet (1126) are respectively provided on the panel (1121) for connecting to the air circuit. The buffer device (2) is provided with an outer protective frame (21), and an integrated inner support frame (22) is fixed inside the outer protective frame (21). An even number of force springs (24) are fixed on the upper surface of the outer protective frame (21), and a damping rod (25) is nested inside each of the force springs (24). A buffer pad (23) is fixed on the inner surface of the inner support frame (22). An even number of auxiliary grooves (27) are opened on the outer protective frame (21), and a back load plate (28) is installed in each of the auxiliary grooves (27). The lower surface of the inner support frame (22) is provided with an even number of card slots (221), and the top of the card slots (221) is provided with locking holes (222). The back load plate (28) is provided with a rotating shaft plate (281), and the top of the rotating shaft plate (281) is equipped with a positioning lock (282). The inner surface of the rotating shaft plate (281) is equipped with a stretchable shoulder strap (283), and a reinforcing drum (284) is fixed on the surface of the rotating shaft plate (281). An inner reinforcing pull rope (285) is nested inside the reinforcing drum (284). The pivot plate (281) is hinged to the auxiliary groove (27), the alignment lock (282) is engaged with the card slot (221), the stretchable shoulder strap (283) located on the inner surface of the pivot plate (281) can be stretched in length, the inner fixing rope (285) inside the reinforcing drum (284) can be stretched in length, and the top of the inner fixing rope (285) is fixed to the fixing clamp (114).

2. The intelligent SF6 mixed gas replenishment device according to claim 1, characterized in that: The gas replenishment assembly (1129) is equipped with a double-layer bracket (11291). A main board (11298) is mounted on the upper layer of the double-layer bracket (11291). A charging management board (11296) is mounted on one side of the main board (11298). A data acquisition board (11295) is mounted above the charging management board (11296). A valve assembly (11299) is mounted on the lower layer of the double-layer bracket (11291). A pressure transmitter (11293) is connected in front of the valve assembly (11299). A pressure transmitter (11293) is located next to the pressure transmitter (11293). A temperature module (11292) is provided, a purity detector (11297) is provided on the side wall of the main board (11298), a mass flow meter (11290) is provided through the double-layer bracket (11291), a battery (11294) is provided next to the temperature module (11292), the gas replenishment assembly (1129) also includes an MFC, and a pressure reducing valve is connected to the front end of the MFC and a solenoid valve is connected to the rear end. The pressure reducing valve is connected to the pressure transmitter (11293), and the solenoid valve is connected to the valve group (11299).

3. The intelligent SF6 mixed gas replenishment device according to claim 2, characterized in that: The battery (11294) powers the components on the double-layer bracket (11291). The motherboard (11298) is connected to the LCD screen (1122). The indicator light group (1123) includes a status light, an undervoltage light, and a charging light. The serial port (1124) is connected to the motherboard (11298). The temperature module (11292) is connected to the air inlet (1125) via a pipe. The air outlet (1126) is connected to the valve group (11291) via a pipe. The temperature module (11292) is connected to the valve group (11299) via a pipe. The pressure transmitter (11293) is matched with the valve group (11299). The valve group (11299) is connected to the purity detector (11297) via a pipe. The purity detector (11297) is connected to the mass flow meter (11290) via a pipe. The battery (11294) is connected to the power supply (1127) harness.

4. The intelligent SF6 mixed gas replenishment device according to claim 1, characterized in that: The hinge platform (14) is hinged to the body cover (3) via the swinging page (15). The side frame (12) is connected to the buffer device (2) via the connecting block (13). The body cover (3) is also fixed with a locking block (113) and a fixing clip (114). The locking block (113) and the fixing clip (114) on the body cover (3) correspond to the locking block (113) and the fixing clip (114) on the chassis (11).

5. The intelligent SF6 mixed gas replenishment device according to claim 1, characterized in that: The buffer pad (23) is located directly below the chassis (11), and the top of the damping rod (25) passes through the connecting block (13). The chassis (11) is suspended above the buffer device (2) by the damping rod (25) and the force spring (24).

6. A method of using an intelligent SF6 mixed gas replenishment device, based on any one of claims 2-3, characterized in that, Specifically, the following steps are included: Step 1: Use the handle (4) to lift the device and move it to the designated position. If the distance is far, the inner fixing rope (285) and the fixing clip (114) at the front of the chassis (11) will form a fixing force. Finally, with the cooperation of the stretchable shoulder strap (283), the outer protective frame (21) and the chassis (11) above can be carried on the back. Step 2: During the carrying process, the damping rod (25) and the force spring (24) contract to provide a buffering effect; Step 3: By connecting the gas cylinder supplying the gas to its inlet and outlet, the system operation of the gas replenishment component (1129) is completed under the control of the LCD screen (1122) on the panel (1121), so that its air inlet (1125) is connected to the measured volume device. When the internal measured volume device is judged to be insufficient in gas, the MFC triggers compensation for it, and finally the gas replenishment is completed with the cooperation of the valve group (11299).

Images