Mixed gas filling device capable of improving matching precision

Abstract

The utility model relates to the technical field of gas filling, in particular to a mixed gas filling device capable of improving matching precision, which comprises a support rod, a support frame fixedly connected to the upper end of the support rod, a gas filling pipeline erected at the upper end of the support frame, a master control valve fixedly connected to the rear end of the gas filling pipeline, and a plurality of groups of detection mechanisms arranged on the side surface of the gas filling pipeline. The detection mechanism comprises an electric valve, a gas flow sensor, an equipment box body and a controller, the upper side of the electric valve is fixedly connected with a first gas inlet pipeline, the upper end of the first gas inlet pipeline is fixedly connected with the inflation pipeline, and the right side of the electric valve is fixedly connected with a second gas inlet pipeline; the gas flow sensor is used for monitoring the amount of filled gas in real time, meanwhile, the processor processes data monitored by the gas flow sensor in real time, when the gas flow reaches a set threshold value, the processor closes the electric valve in time through the controller, and then the precision of the gas filling amount is guaranteed; and finally, the gas mixing precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas filling, in particular to a mixed gas filler capable of improving the ratio accuracy. Background Art

[0002] A mixed gas filler is a device used to mix two or more gases in a preset ratio and then charge them into a container. It is widely used in industrial production, laboratory research, and other fields. Through built-in sensors and controllers, mixed gas fillers can automatically adjust the valve opening to achieve automatic gas mixing.

[0003] Among them, announcement number CN211780171U discloses a double-row filling device for mixed gas, including a support frame for the filling and filling row, on which a first main pipe and a second main pipe are fixed by a fixing frame, and a plurality of safety valves are respectively arranged on the main pipes, each of the safety valves is connected to the gas cylinder through a filling hose, the safety valve and the filling hose are connected by the filling clamp, and the filling hose and the gas cylinder are connected by the filling clamp, a panel is arranged on one side of the support frame, a plurality of pressure gauges are arranged on the panel, each of the pressure gauges is connected to a stop valve, the tail of the first main pipe and the second main pipe are both provided with a stop valve, and a recovery hose is installed on the two stop valves, the recovery hose includes a first recovery hose and a second recovery hose, the first recovery hose and the second recovery hose are converged into a gas recovery device, and the gas recovery device includes a bottle body and a bottle cap.

[0004] However, during the filling process, since multiple groups of gas cylinders are inflated at the same time, there is a certain distance between each group of gas cylinders. When the amount of gas inside the gas cylinders reaches the specified amount, each group of valves cannot be closed in time, resulting in a certain error between the amount of gas filled and the specified value, thereby reducing the gas mixing accuracy.

[0005] Therefore, it is necessary to invent a mixed gas filler that improves the ratio accuracy to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a mixed gas filler with improved ratio accuracy, so as to solve the problem in the technology that due to the simultaneous filling of multiple groups of gas cylinders, there is a certain distance between each group of gas cylinders. When the amount of gas inside the gas cylinders reaches a specified amount, each group of valves cannot be closed in time, which leads to a certain error between the amount of gas filled and the specified value, thereby reducing the gas mixing accuracy.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mixed gas inflator for improving the ratio accuracy, comprising a support rod, the upper end of the support rod is fixedly connected to a support frame, the upper end of the support frame is provided with an inflation pipe, the rear end of the inflation pipe is fixedly connected to a master control valve, and multiple groups of detection mechanisms are provided on the side of the inflation pipe, the detection mechanism includes an electric valve, a gas flow sensor, an equipment box body, and a controller, the upper side of the electric valve is fixedly connected to a first air intake pipe, the upper end of the first air intake pipe is fixedly connected to the inflation pipe, the right side of the electric valve is fixedly connected to a second air intake pipe, and a gas storage tank body is provided on the right side of the support rod.

[0008] By adopting the above technical solution, during the process of inflating the gas storage tank, the gas flow sensor monitors the gas filling amount in real time. When the gas amount reaches the specified threshold, the controller closes the electric valve in time, stopping inflation at this time, thereby ensuring the accuracy of the inflation amount.

[0009] Optionally, a safety valve is fixedly connected to the upper end of the gas storage tank body, and the right end of the second air intake pipe is fixedly connected to the safety valve.

[0010] By adopting the above technical solution, the safety valve is opened during the inflation process and is closed after the inflation is completed.

[0011] Optionally, the controller is arranged on the left side of the electric valve, and the controller is electrically connected to the electric valve.

[0012] By adopting the above technical solution, the controller is used to control the opening and closing of the electric valve.

[0013] Optionally, the lower side of the electric valve is fixedly connected to the gas flow sensor, and the lower side of the gas flow sensor is fixedly connected to the device box body.

[0014] By adopting the above technical solution, the gas flow sensor is used to monitor the flow and pressure of the gas in real time.

[0015] Optionally, a processor is provided inside the device box, and the processor is electrically connected to the controller.

[0016] By adopting the above technical solution, thresholds for different gas quantities can be set inside the processor, and the processor processes the data monitored by the gas flow sensor in real time. When the gas flow reaches the specified threshold, the processor transmits a signal to the controller, and the controller closes the electric valve in time, stopping gas supply at this time.

[0017] Optionally, a connecting rod is fixedly connected to the right side surface of the support rod, and the device box body is fixedly connected to the upper surface of the connecting rod.

[0018] By adopting the above technical solution, the connecting rod supports the device box body.

[0019] Optionally, the right end of the connecting rod is rotatably connected to two groups of positioning rings, and the right ends of the two groups of positioning rings are fixedly connected to connecting blocks. The surfaces of the two groups of connecting blocks are provided with card slots, and the inside of the front card slot is rotatably connected to a card block, and the card block is fixed to the rear card slot.

[0020] By adopting the above technical solution, the two sets of positioning rings move closer to the inside to clamp the gas tank body, and the clamping block is rotated toward the rear side and clamped into the clamping slot on the rear side to lock the two sets of positioning rings.

[0021] Optionally, the lower end of the support rod is fixedly connected to a fixed base plate, the right side of the fixed base plate is fixedly connected to a fixed frame, and the lower end of the gas storage tank body is clamped inside the fixed frame.

[0022] By adopting the above technical solution, the fixing frame supports and fixes the gas storage tank body.

[0023] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0024] 1. The utility model uses a gas flow sensor to monitor the amount of gas charged in real time. When the amount of gas reaches a specified threshold, the controller will promptly close the electric valve and stop charging, thus ensuring the accuracy of the charging amount and improving the accuracy of gas mixing. It solves the problem that when multiple groups of gas cylinders are charged at the same time, there is a certain distance between each group of gas cylinders. When the gas volume inside the gas cylinders reaches the specified amount, the valves of each group cannot be closed in time, resulting in a certain error between the charged gas volume and the specified value, thereby reducing the accuracy of gas mixing.

[0025] 2. The utility model clamps the gas tank body above the fixing frame, and then rotates the two sets of positioning rings to clamp the two sets of positioning rings on the outside of the gas tank body, which facilitates the fixation of the gas tank body and improves the stability of the gas tank body during the inflation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the gas storage tank structure of the utility model;

[0028] Figure 3 This is a schematic diagram of the detection mechanism structure of the utility model;

[0029] Figure 4This is a schematic diagram of the support rod structure of the utility model;

[0030] Figure 5 This is a schematic diagram of the positioning ring structure of the utility model.

[0031] Description of reference numerals:

[0032] 1. Support rod; 11. Support frame; 12. Fixed base plate; 13. Fixed frame; 14. Connecting rod; 15. Positioning ring; 16. Connecting block; 17. Slot; 18. Block; 2. Inflation pipe; 21. Master control valve; 22. First air inlet pipe; 23. Electric valve; 24. Gas flow sensor; 25. Equipment box; 26. Controller; 27. Second air inlet pipe; 3. Gas tank body; 31. Safety valve. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] The utility model provides Figures 1 to 3 The mixed gas inflator shown in the figure improves the mixing ratio accuracy, including a support rod 1, the upper end of the support rod 1 is fixedly connected to the support frame 11, the upper end of the support frame 11 is provided with an inflation pipe 2, the rear end of the inflation pipe 2 is fixedly connected to the master control valve 21, and the side of the inflation pipe 2 is provided with multiple groups of detection mechanisms, the detection mechanisms include an electric valve 23, a gas flow sensor 24, a device box 25, and a controller 26. The upper side of the electric valve 23 is fixedly connected to a first air intake pipe 22, the upper end of the first air intake pipe 22 is fixedly connected to the inflation pipe 2, and the electric valve 23 is fixedly connected to the inflation pipe 2. A second air intake pipe 27 is fixedly connected to the right side of the support rod 1, a gas storage tank body 3 is provided on the right side of the support rod 1, a safety valve 31 is fixedly connected to the upper end of the gas storage tank body 3, the right end of the second air intake pipe 27 is fixedly connected to the safety valve 31, the controller 26 is provided on the left side of the electric valve 23, the controller 26 is electrically connected to the electric valve 23, the lower side of the electric valve 23 is fixedly connected to the gas flow sensor 24, the lower side of the gas flow sensor 24 is fixedly connected to the equipment box body 25, a processor is provided inside the equipment box body 25, and the processor is electrically connected to the controller 26.

[0035] Among them, thresholds for different gases are set in the processor inside the device box body 25, and the processor is used to process the data monitored by the gas flow sensor 24 in real time. During the inflation process, the right end of the second air inlet pipe 27 is connected to the safety valve 31 in the gas storage tank body 3, and then the safety valve 31 is opened. At this time, the electric valve 23 is opened to inflate the interior of the gas storage tank body 3. At this time, the gas flow is monitored in real time by the gas flow sensor 24, and the data monitored by the gas flow sensor 24 is processed in real time by the processor. When the gas flow reaches the set threshold, the processor transmits a signal to the controller 26, and the controller 26 closes the electric valve 23 in time to stop inflation, while effectively reducing the workload of the staff.

[0036] See Figure 4 and Figure 5 The right side surface of the support rod 1 is fixedly connected with a connecting rod 14, and the equipment box body 25 is fixedly connected to the upper surface of the connecting rod 14. The right end of the connecting rod 14 is rotatably connected with two sets of positioning rings 15. The right ends of the two sets of positioning rings 15 are fixedly connected with connecting blocks 16. The surfaces of the two sets of connecting blocks 16 are provided with card slots 17. The inside of the front card slot 17 is rotatably connected with a card block 18, and the card block 18 is fixedly engaged with the rear card slot 17. The lower end of the support rod 1 is fixedly connected to the fixed base plate 12, and the right side of the fixed base plate 12 is fixedly connected to the fixed bracket 13. The lower end of the gas tank body 3 is stuck inside the fixed bracket 13.

[0037] At the same time, before inflating the gas tank body 3, the gas tank body 3 is sequentially mounted on top of the fixing frame 13, and then the two sets of positioning rings 15 are rotated backward and clamped on the side of the gas tank body 3. Then, the clamping block 18 is rotated backward and clamped inside the rear card groove 17. At this time, the two sets of positioning rings 15 are locked to fix the gas tank body 3. Then, the second air inlet pipe 27 is connected to the safety valve 31, and the safety valve 31 is opened for inflation. After inflation is completed, the safety valve 31 is closed, and then the gas tank body 3 is removed.

[0038] Working principle of the present invention: In order to improve the accuracy of gas mixing, the amount of gas charged is monitored in real time by using a gas flow sensor 24, and at the same time the processor processes the data monitored by the gas flow sensor 24 in real time. When the gas flow reaches the set threshold, the processor closes the electric valve 23 in time through the controller 26, thereby ensuring the accuracy of the gas charging amount and ultimately improving the accuracy of gas mixing.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention.

Claims

1. A mixed gas filler for improving the mixing ratio accuracy, comprising a support rod (1), characterized in that: The upper end of the support rod (1) is fixedly connected to a support frame (11), and an inflation pipe (2) is mounted on the upper end of the support frame (11). The rear end of the inflation pipe (2) is fixedly connected to a master control valve (21). The side of the inflation pipe (2) is provided with multiple detection mechanisms, which include an electric valve (23), a gas flow sensor (24), a device box (25), and a controller (26). The upper side of the electric valve (23) is fixedly connected to a first air intake pipe (22), the upper end of the first air intake pipe (22) is fixedly connected to the inflation pipe (2), the right side of the electric valve (23) is fixedly connected to a second air intake pipe (27), and a gas storage tank (3) is provided on the right side of the support rod (1).

2. A mixed gas filler with improved ratio accuracy according to claim 1, characterized in that: The upper end of the gas storage tank body (3) is fixedly connected to a safety valve (31), and the right end of the second air intake pipe (27) is fixedly connected to the safety valve (31).

3. The mixed gas filler with improved ratio accuracy according to claim 1, characterized in that: The controller (26) is arranged on the left side of the electric valve (23), and the controller (26) is electrically connected to the electric valve (23).

4. The mixed gas filler with improved ratio accuracy according to claim 1, characterized in that: The lower side of the electric valve (23) is fixedly connected to the gas flow sensor (24), and the lower side of the gas flow sensor (24) is fixedly connected to the device box body (25).

5. The mixed gas filler for improving the mixing ratio accuracy according to claim 4, characterized in that: A processor is provided inside the device box (25), and the processor is electrically connected to the controller (26).

6. The mixed gas filler with improved ratio accuracy according to claim 1, characterized in that: The right side surface of the support rod (1) is fixedly connected to a connecting rod (14), and the device box body (25) is fixedly connected to the upper surface of the connecting rod (14).

7. A mixed gas filler for improving ratio accuracy according to claim 6, characterized in that: The right end of the connecting rod (14) is rotatably connected to two groups of positioning rings (15), and the right ends of the two groups of positioning rings (15) are fixedly connected to connecting blocks (16). The surfaces of the two groups of connecting blocks (16) are provided with clamping grooves (17), and the interior of the front side clamping groove (17) is rotatably connected to a clamping block (18), and the clamping block (18) is clamped and fixed to the rear side clamping groove (17).

8. The mixed gas filler for improving the mixing ratio accuracy according to claim 7, characterized in that: The lower end of the support rod (1) is fixedly connected to a fixed base plate (12), the right side of the fixed base plate (12) is fixedly connected to a fixed frame (13), and the lower end of the gas storage tank body (3) is clamped inside the fixed frame (13).

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