SF6 mixed gas intelligent gas supplementing equipment and use method thereof

Abstract

The invention discloses intelligent SF6 mixed gas supplementing equipment, and belongs to the technical field of SF6 mixed gas supplementing. The SF6 mixed gas intelligent gas supplementing equipment comprises a gas supplementing equipment machine, a buffer device is installed below the gas supplementing equipment machine, a machine body cover is installed above the gas supplementing equipment machine, a lifting handle is fixed to the outer surface of the machine body cover, a machine box is arranged in the gas supplementing equipment machine, a mounting groove is formed in the machine box, and an operation device is installed in the mounting groove; a panel is arranged in the operation device, and an air supply assembly is arranged below the panel. A gas cylinder is connected with an inlet and an outlet of the gas cylinder, operation of an internal gas supplementing assembly is completed under operation of a liquid crystal screen system on a panel, a gas inlet of the internal gas supplementing assembly is made to be connected with volume equipment to be detected, then the temperature of SF6 gas is monitored through a built-in temperature module, and gas purity is detected through a purity detector; and finally, under mutual cooperation of gas path switching of the valve group, the rapid and accurate gas filling and supplementing requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of SF6 mixed gas replenishment, and in particular to an SF6 mixed gas intelligent replenishment device and a method of using the same. Background Art

[0002] SF6 gas is widely used in electrical equipment due to its excellent insulation and arc-extinguishing 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, attempts have begun to use mixed gases to replace pure SF6 insulating gas.

[0003] However, the existing technology has the following deficiencies: the on-site inflation method of mixed gas is backward. At present, the partial pressure inflation method is mainly used for filling mixed gas equipment. This method is difficult to accurately control the inflation volume and has large operating errors. At the same time, the on-site gas replenishment measures for the mixed gas are improper, and the equipment will inevitably leak or leak during long-term operation. In order to ensure the insulation and arc extinguishing performance of the circuit breaker, it must be replenished. Due to the lack of pure N2 gas on site, only SF6 gas is filled for replenishment, which makes the detection data of most SF6 contents too large, and cannot meet the requirements of fast and accurate filling and replenishment of mixed gas insulation equipment. In addition, it does not have a shock-absorbing and portable design, is not convenient to carry, and external vibrations can easily interfere with internal precision components. Summary of the Invention

[0004] In order to address the deficiencies in the prior art, the present invention provides an SF6 mixed gas intelligent gas replenishment device and a method for using the same to solve the problems in the prior art that it is difficult to accurately control the gas filling volume, the operation error is large, and at the same time, the on-site gas replenishment measures for the mixed gas are improper, and the equipment will inevitably leak or leak during long-term operation. In order to ensure the insulation and arc extinguishing performance of the circuit breaker, it must be replenished. Due to the lack of pure N2 gas on site, only SF6 gas is filled for gas replenishment, resulting in most SF6 content detection data being too large, which cannot meet the technical problems of the rapid and accurate filling and replenishment requirements of the mixed gas insulation equipment.

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

[0006] An intelligent SF6 mixed gas supply device includes a supply device, a buffer device installed below the supply device to support the supply device and reduce external interference with precision components inside the supply device, a body cover installed above the supply device, a handle fixed to the outer surface of the body cover for lifting the device, a chassis provided inside the supply device, a mounting slot provided inside the chassis, and an operating device installed in the mounting slot for controlling the operation of the device; A panel is provided in the operating device, an air supply component is provided 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 provided next to the USB port, a serial port is provided next to the indicator light group, a power supply is installed on the other side of the LCD screen, and an air inlet and an air outlet are respectively provided on the panel for connecting the air circuit.

[0007] As an improvement, a double-layer bracket is provided in the air supply component, and a main board is installed on the upper layer of the double-layer bracket. A charging management board is provided on one side of the main board, and an acquisition board is installed above the charging management board. A valve group is installed 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 provided next to the pressure transmitter, a purity detector is provided on the side wall of the main board, a mass flow meter passes through the double-layer bracket, and a battery is provided next to the temperature module. The air supply component 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, wherein 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 is used to power the components on the double-layer bracket, the main board is connected to the LCD screen, the indicator light group has built-in status light, undervoltage light, and charging light, the serial port is connected to the main board, the temperature module is connected to the air inlet through a pipe, the air outlet is connected to the valve group through a pipe, the temperature module is connected to the valve group through a pipe, the pressure transmitter is coordinated with the valve group, the valve group is connected to the purity detector through a pipe, the purity detector is connected to the mass flowmeter pipe, and the battery is connected to the power harness.

[0009] As an improvement, an even number of side connecting frames are provided on both sides of the chassis, connecting blocks are fixed between the side connecting frames, multiple pairs of hinged tables are fixed on the side walls of the chassis, swing pages are fixed between each pair of hinged tables, an even number of locking blocks are fixed on the outer wall of the chassis, and fixing clips are provided next to the locking blocks.

[0010] As an improvement, the hinged platform is hingedly connected to the body cover through the swing leaf, the side connecting frame is connected to the buffer device through the connecting block, the locking block and the fixing clip are both fixed to the body cover, and a locking block and a fixing clip are also fixed thereon, 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, an outer protective frame is provided in the buffer device, an inner support frame of an integrated structure is fixed in the outer protective frame, an even number of force springs are fixed on the upper surface of the outer protective frame, damping rods are nested in the force springs, a buffer pad is fixed on the inner surface of the inner support frame, an even number of auxiliary motion grooves are opened on the outer protective frame, and back load plates are installed in the auxiliary motion grooves.

[0012] As an improvement, an even number of card slots are provided on the lower surface of the inner support frame, a lock plate hole is provided on the top of the card slot, a pivot plate is provided in the back load plate, an alignment lock is installed on the top of the pivot plate, a stretchable shoulder strap is installed on the inner surface of the pivot plate, a reinforcement reel is fixed on the surface of the pivot plate, and an internal fixed pull rope is nested in the reinforcement reel.

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

[0014] A method for using an SF6 mixed gas intelligent gas supply device, based on the SF6 mixed gas intelligent gas supply device according to any one of claims 1 to 9, is characterized in that it specifically comprises the following steps: Step 1: Lift the device by hand using the lifting handle to move it to a designated location. If the distance is far, the inner fixed pull rope and the fixing clip on the front of the chassis form a fixed tension, and finally the outer frame and the chassis above can be carried on the back with the cooperation of the stretchable shoulder strap. Step 2, during the carrying process, the damping rod and the force spring contract to play a buffering role; Step 3, by connecting the gas cylinder that supplies gas to its inlet and outlet, the operation of the internal gas supply component is completed under the operation of the LCD screen system on the panel, so that its gas inlet is connected to the measured volume device. When the internal measured volume device is judged to be short of gas, the MFC is triggered to compensate for it, and finally the gas is replenished with the cooperation of the valve group.

[0015] The beneficial effect of the present invention is that, compared with the prior art, 1. The present invention connects the gas cylinder with its inlet and outlet, completes the operation of the internal gas replenishment component under the operation of the LCD system on the panel, connects its gas inlet with the measured volume device, and then uses the built-in temperature module to monitor the SF6 gas temperature and the purity detector to detect the gas purity. Finally, the gas path switching of the valve group cooperates with each other to achieve fast and accurate filling and replenishment needs. Compared with the partial pressure filling valve, it can more accurately control the filling volume and avoid the occurrence of excessive errors.

[0016] 2. The present invention supports the chassis through the damping rod in the buffer device in conjunction with the force spring, so that it is suspended above the buffer device, so that when it is carried, the adverse effects of vibration and impact on the electronic components and connecting pipes inside the chassis during the carrying process can be avoided, and at the same time, preliminary barrier protection can be achieved around the chassis.

[0017] 3. The present invention uses the back load plate inside the outer frame. When the installation position is far away and it is inconvenient to carry it for a long time, the hinge plate can be turned outward and reversed in the auxiliary groove. In addition, the internal fixed rope and the fixed clip in the front of the chassis form a fixed tension. Finally, with the cooperation of the stretchable shoulder strap, the outer frame and the upper chassis can be carried on the back, making long-term carrying more convenient and easy. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure: Air supply equipment 1, buffer device 2, body cover 3, lifting handle 4, chassis 11, side connecting frame 12, connecting block 13, hinged platform 14, swing leaf 15, outer frame 21, inner support frame 22, buffer pad 23, load spring 24, damping rod 25, pad 26, auxiliary 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, reinforcement reel 2 84. Internal drawstring 285, panel 1121, LCD screen 1122, indicator light assembly 1123, serial port 1124, air inlet 1125, air outlet 1126, power supply 1127, USB port 1128, air supply assembly 1129, mass flow meter 11290, double-layer bracket 11291, temperature module 11292, pressure transmitter 11293, battery 11294, acquisition board 11295, charge management board 11296, purity detector 11297, main board 11298, valve block 11299. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described in this application are only part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without making creative efforts are all within the scope of protection of the present invention.

[0021] Example 1 An intelligent SF6 mixed gas supply device includes a supply device 1, a buffer device 2 is installed below the supply device 1 for supporting the supply device 1 and reducing external interference with the precision components inside the supply device 1, a body cover 3 is installed above the supply device 1, a lifting handle 4 is fixed to the outer surface of the body cover 3 for lifting the device, a chassis 11 is provided inside the supply device 1, a mounting slot 111 is provided in the chassis 11, and an operating device 112 is installed in the mounting slot 111 for controlling the operation of the device; The operating device 112 is provided with a panel 1121, and a gas supply component 1129 is provided below the panel 1121. An LCD screen 1122 is embedded on 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 provided on the panel 1121 for connecting the air circuit. The LCD screen 1122 is mainly used for displaying the system page. At the same time, the indicator light group 1123 provided on one side can light up according to the connection status of the light group under corresponding operation. At the same time, the panel 1121 is composed of an ultra-low power main MCU and a sub-MCU, as well as a circuit part, forming an MCU control system.

[0022] In a preferred but non-limiting embodiment of the present invention, a double-layer bracket 11291 is provided in the gas supply component 1129, and a main board 11298 is installed on the upper layer of the double-layer bracket 11291. A charging management board 11296 is installed on one side of the main board 11298. A collection board 11295 is installed above the charging management board 11296. A valve group 11299 is installed on the lower layer of the double-layer bracket 11291. A pressure transmitter 11293 is connected to the front of the valve group 11299. The pressure transmitter 11293 is connected to the pressure transmitter 11293. A temperature module 11292 is installed next to 1293. A purity detector 11297 is installed on the side wall of the mainboard 11298. A mass flowmeter 11290 is inserted through the double-layer bracket 11291. A battery 11294 is installed next to the temperature module 11292. The gas supply assembly 1129 also includes an MFC, with a pressure reducing valve connected to the front end 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 block 11299. The valve block 11299 adopts a modular solenoid valve design to facilitate pipeline switching and precise adjustment during gas output or conversion. With the assistance of the mass flowmeter 11290, it can monitor the mass flow of the incoming gas. In conjunction with the purity detector 11297 and the temperature module 11292, it can achieve intelligent monitoring and simultaneously complete temperature and purity compensation.

[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 main board 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 main board 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 flowmeter 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. Among them, the status light displays the operating status of the instrument, the undervoltage light indicates that the instrument is undervoltage and the light is on to remind you to charge in time, and the charging light serves as a charging indicator. The indicator light is red during the charging process and green when it is fully charged.

[0024] In a preferred but non-limiting embodiment of the present invention, an even number of side connecting frames 12 are provided on both sides of the chassis 11, with connecting blocks 13 fixed between the side connecting frames 12. A hinged platform 14 is fixed to the side wall of the chassis 11, with swinging leaves 15 fixed between the hinged platforms 14. An even number of locking blocks 113 are fixed to the outer wall of the chassis 11, with fixing clips 114 provided next to each locking block 113. The side connecting frames 12 on both sides of the chassis 11 primarily secure the connecting blocks 13, and with the assistance of the connecting blocks 13, the chassis 11 is suspended above the buffer device 2, which, in conjunction with the buffer device 2, provides a cushioning and shock-absorbing effect on the chassis 11.

[0025] In a preferred but non-limiting embodiment of the present invention, the hinged platform 14 is hingedly coupled to the body cover 3 via the swing 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 primarily configured to mate with the locking block 113 and the fixing clip 114 on the body cover 3. The locking block 113 cooperates to securely close the chassis 11, while the fixing clip 114 cooperates to secure the structure on the buffer device 2.

[0026] In a preferred but non-limiting embodiment of the present invention, the buffer device 2 is provided with an outer frame 21, with four pads 26 disposed at the bottom of the outer frame 21. An integrated inner support frame 22 is fixed within the outer frame 21. An even number of force springs 24 are fixed to the upper surface of the outer frame 21, each of which is embedded with a damping rod 25. A buffer pad 23 is fixed to the inner surface of the inner support frame 22. An even number of auxiliary grooves 27 are defined in the outer frame 21, each of which is fitted with a back load plate 28. The buffer pad 23 primarily supports the bottom of the chassis 11 when the vibration amplitude of the chassis 11 is excessive. Its self-resetting properties provide better protection for the chassis 11, preventing the internal components from contracting due to shock.

[0027] In a preferred but non-limiting embodiment of the present invention, an even number of card slots 221 are formed on the lower surface of the inner support frame 22, a locking plate hole 222 is provided at the top of each card slot 221, a pivot plate 281 is provided within the back load plate 28, a positioning lock 282 is mounted on the top of each pivot plate 281, a stretchable shoulder strap 283 is mounted on the inner surface of each pivot plate 281, a reinforcement reel 284 is fixed to the surface of each pivot plate 281, and an inner fixed pull cord 285 is nested within each reinforcement reel 284. The inner fixed pull cord 285 primarily serves to engage and secure the fixed clip 114, and to create tension between the pivot plate 281 and the fixed clip 114, allowing the pivot plate 281 to swing upward, making it more convenient for the user to carry the SF6 mixed gas intelligent gas replenishment device.

[0028] In a preferred but non-limiting embodiment of the present invention, the pivot plate 281 is hingedly engaged with the auxiliary slot 27, the alignment lock 282 engages with the clamping plate slot 221, the stretchable shoulder strap 283 located on the inner surface of the pivot plate 281 is stretchable, and the inner fixed pull rope 285 within the reinforcement reel 284 is stretchable, with the top of the inner fixed pull rope 285 fixed to the fixing clamp 114. The inner fixed pull rope 285 primarily generates tension by having one end fixed to the surface of the pivot plate 281 and the other end connected to the fixing clamp 114, causing the pivot plate 281 to form a certain angle. The cushioning device 2 and the air supply device 1 are then carried with the assistance of the stretchable shoulder strap 283 in front of the pivot plate 281.

[0029] In a preferred but non-limiting embodiment of the present invention, the buffer pad 23 is positioned directly below the chassis 11. The top of the damping rod 25 extends through the connecting block 13. The chassis 11 is suspended above the buffer device 2 via the damping rod 25 and the force spring 24. The damping rod 25 primarily cooperates with the force spring 24 to secure the chassis 11 in the air, preventing the electronic components within the chassis 11 from being adversely affected by the vehicle's jolts when placed on a passing vehicle.

[0030] Example 2 A method for using an SF6 mixed gas intelligent gas replenishing device specifically comprises the following steps: Step 1: Lift the device by hand using the lifting handle 4 to move it to a designated location. If the distance is far, turn the rotating shaft plate 281 outward, change direction in the auxiliary groove 27, and form a fixed tension with the inner fixed rope 285 and the fixing clip 114 in front of the chassis 11. Finally, with the cooperation of the stretchable shoulder strap 283, the outer frame 21 and the chassis 11 above can be carried on the back. Step 2: The damping rod 25 in the buffer device 2 cooperates with the force spring 24 to support the chassis 11 so that it is suspended above the buffer device 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 that supplies gas to its inlet and outlet, the operation of the internal gas supply component 1129 is completed under the system operation of the LCD screen 1122 on the panel 1121, so that the gas inlet 1125 is connected to the measured volume device, and then the built-in temperature module 11292 monitors the SF6 gas temperature, and the purity detector 11297 performs gas purity detection. When the internal measured volume device is judged to be insufficient in gas, the MFC is triggered to compensate for it. The front end of the MFC is connected to the pressure reducing valve, and the rear end is connected to the solenoid valve to accurately control the flow rate during the inflation process, the test mixing ratio and the effective volume. During the compensation process, the temperature module 11292 measures the temperature, the mass flowmeter 11290 monitors the flow, and the purity detector 11297 monitors the incoming SF6 mixed gas. Finally, with the cooperation of the valve group 11299, the gas is replenished, and the excess gas is output to the gas collection bag through the pressure transmitter 11293 to the gas outlet 1126. In addition, with the cooperation of the acquisition board 11295 and the main board 11298, the hardware solution can be viewed in detail to achieve high-precision intelligent compensation of the SF6 mixed gas. Finally, with the cooperation of the gas path switching of the valve group 11299, the needs of fast and accurate filling and replenishing of gas are realized.

[0031] The specific working principle is as follows: The present invention carries the air supply equipment 1 and the buffer device 2 connected below to the specified position, and then assists the opening of the body cover 3 with the cooperation of the swing leaf 15 in the hinged platform 14 of the chassis 11. At the same time, the side connecting frame 12 and the connecting block 13 and its buffer device 2 support the air supply equipment 1. After opening, the operating device 112 in the installation slot 111 in the chassis 11 turns on its system under the control of the LCD screen 1122 on the surface of the panel 1121. The air inlet 1125 is connected to the measured volume device, and the air outlet 1126 is connected to the air collection bag. When the internal measured volume device is judged to be short of gas, the MFC is triggered to compensate for it, and the MFC front end Connect the pressure reducing valve and the solenoid valve at the back end to accurately control the flow rate during the inflation process, test the mixing ratio and the effective volume. At the same time, the temperature module 11292 is used to measure the temperature during the compensation process, the mass flow meter 11290 is used to monitor the flow rate, and the purity detector 11297 is used to monitor the incoming SF6 mixed gas. Finally, the gas is replenished with the cooperation of the valve group 11299, and the excess gas is output to the gas collection bag through the pressure transmitter 11293 box outlet 1126. With the cooperation of the acquisition board 11295 and the main board 11298, the hardware solution can be viewed in detail to achieve high-precision intelligent compensation of SF6 mixed gas.

[0032] The present invention provides a buffer pad 23 on the inner support frame 22 of the outer frame 21 to provide shock support for the lower part of the chassis, and the force springs 24 and damping rods 25 installed on both sides can make the chassis 11 suspended in the air, so that the external bumps during carrying can be absorbed by the damping rods 25 and the force springs 24, thereby avoiding interference of external vibrations on internal precision components.

[0033] The present invention installs the pivot plate 281 in the card slot 221, and the lock plate hole 222 cooperates with the positioning lock 282 to limit the pivot plate 281. When in use, the pivot plate 281 swings on the damping rod 25, allowing the internal fixed pull rope 285 in the reinforcement reel 284 to be pulled outward for a certain length and then fixed to the fixed clamp, thereby achieving tension support for the pivot plate 281. The wearer can then adjust the stretchable shoulder strap 283 and carry the buffer device together with the air replenishing device 1 on their back, which is more convenient and easier than the existing carrying.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. An intelligent gas supply device for SF6 mixed gas, characterized in that: The invention comprises an air supply device (1), wherein a buffer device (2) is installed below the air supply device (1) for supporting the air supply device (1) and reducing interference caused by the outside world to the precision components inside the air supply device (1); a body cover (3) is installed above the air supply device (1); a lifting handle (4) is fixed on the outer surface of the body cover (3) for lifting the device; a case (11) is arranged inside the air supply device (1); a mounting groove (111) is provided inside the case (11); an operating device (112) is installed in the mounting groove (111) for controlling the operation of the device; The operating device (112) is provided with a panel (1121), a gas supply component (1129) is provided below the panel (1121), a liquid crystal screen (1122) is embedded on the panel (1121), a USB port (1128) is installed on one side of the liquid crystal 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 liquid crystal screen (1122), and an air inlet (1125) and an air outlet (1126) are respectively provided on the panel (1121) for connecting an air path.

2. The SF6 mixed gas intelligent gas supply equipment according to claim 1 is characterized in that: A double-layer bracket (11291) is arranged in the air replenishment component (1129), a main board (11298) is installed on the upper layer of the double-layer bracket (11291), a charging management board (11296) is arranged on one side of the main board (11298), a collection board (11295) is installed above the charging management board (11296), a valve group (11299) is installed on the lower layer of the double-layer bracket (11291), a pressure transmitter (11293) is connected to the front of the valve group (11299), and a pressure transmitter (11293) is arranged next to the pressure transmitter (11293). A temperature module (11292) is arranged, a purity detector (11297) is arranged on the side wall of the main board (11298), a mass flow meter (11290) is passed through the double-layer bracket (11291), a battery (11294) is arranged next to the temperature module (11292), the gas replenishing component (1129) also includes an MFC, and the front end of the MFC is connected to a pressure reducing valve, and the rear end is connected to a solenoid valve, wherein the pressure reducing valve is connected to the pressure transmitter (11293), and the solenoid valve is connected to the valve group (11299).

3. The SF6 mixed gas intelligent gas replenishing device according to claim 2 is characterized in that: The battery (11294) is used to supply energy to the components on the double-layer bracket (11291); the main board (11298) is connected to the LCD screen (1122); the indicator light group (1123) has a built-in status light, an undervoltage light, and a charging light; the serial port (1124) is connected to the main board (11298); the temperature module (11292) is connected to the air inlet (1125) via a pipeline; the air outlet (1126) is connected to the valve group (1126) via a pipeline. 1299), the temperature module (11292) is connected to the valve group (11299) through a pipeline, the pressure transmitter (11293) cooperates with the valve group (11299), the valve group (11299) is connected to the purity detector (11297) through a pipeline, the purity detector (11297) is connected to the mass flow meter (11290) through a pipeline, and the battery (11294) is connected to the power supply (1127) wiring harness.

4. The SF6 mixed gas intelligent gas replenishing device according to claim 1 is characterized in that: An even number of side connecting frames (12) are arranged on both sides of the chassis (11), and connecting blocks (13) are fixed between the side connecting frames (12). A plurality of pairs of hinged tables (14) are fixed to the side walls of the chassis (11), and a swing leaf (15) is arranged between each pair of hinged tables (14). An even number of locking blocks (113) are fixed to the outer wall of the chassis (11), and fixing clips (114) are arranged next to the locking blocks (113).

5. The SF6 mixed gas intelligent gas replenishing device according to claim 4 is characterized in that: The hinge platform (14) is hingedly connected to the machine body cover (3) via the swing leaf (15); the side connecting frame (12) is connected to the buffer device (2) via the connecting block (13); a locking block (113) and a fixing clip (114) are also fixed to the machine body cover (3); and the locking block (113) and the fixing clip (114) on the machine body cover (3) correspond to the locking block (113) and the fixing clip (114) on the chassis (11).

6. The SF6 mixed gas intelligent gas replenishing device according to claim 5 is characterized in that: An outer protective frame (21) is arranged inside the buffer device (2), an inner support frame (22) of an integrated structure 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), damping rods (25) are embedded in 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).

7. The SF6 mixed gas intelligent gas replenishing device according to claim 6 is characterized in that: An even number of card slots (221) are provided on the lower surface of the inner support frame (22), a locking plate hole (222) is provided on the top of the card slot (221), a rotating shaft plate (281) is provided inside the back load plate (28), a positioning 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), a reinforcement reel (284) is fixed on the surface of the rotating shaft plate (281), and an inner reinforcement pull rope (285) is embedded in the reinforcement reel (284).

8. The SF6 mixed gas intelligent gas replenishing device according to claim 7 is characterized in that: The rotating shaft plate (281) is hingedly matched with the auxiliary groove (27), the alignment lock (282) is matched with the card plate groove (221), the stretchable shoulder strap (283) located on the inner surface of the rotating shaft plate (281) can be stretched in length, the inner fixed pull rope (285) in the reinforcement reel (284) can be stretched in length, and the top of the inner fixed pull rope (285) is fixed on the fixing clamp (114).

9. The SF6 mixed gas intelligent gas replenishing device according to claim 8, characterized in that: The buffer pad (23) is arranged directly below the chassis (11), the top of the damping rod (25) passes through the connecting block (13), and the chassis (11) is suspended on the buffer device (2) through the coordination of the damping rod (25) and the force spring (24).

10. A method for using an SF6 mixed gas intelligent gas replenishment device, based on the SF6 mixed gas intelligent gas replenishment device according to any one of claims 1 to 9, characterized in that: The specific steps include: Step 1, the device is lifted by hand through the lifting handle (4) to move the device to a designated position. If the distance is far, a fixed pulling force is formed by the inner fixed pull rope (285) and the fixing clip (114) in front of the chassis (11), and finally the outer protective frame (21) and the chassis (11) above can be carried with the cooperation of the stretchable shoulder strap (283); Step 2, during the carrying process, the damping rod (25) and the force spring (24) are contracted to provide a buffering effect; Step 3, by connecting the gas cylinder that supplies gas to its inlet and outlet, the operation of the internal gas replenishment component (1129) is completed under the system operation of the LCD screen (1122) on the panel (1121), so that its gas inlet (1125) is connected to the measured volume device. When the internal measured volume device is judged to be short of gas, the MFC is triggered to compensate for it, and finally the gas is replenished with the cooperation of the valve group (11299).

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