Pneumatic supercharging equipment for high-pressure gas cylinder

Abstract

The utility model discloses pneumatic supercharging equipment for a high-pressure gas cylinder, and relates to the technical field of high-pressure gas cylinder filling. The system comprises a driving air source, a pressurizing air source, a pressurizing pump and a pressurizing output interface, the driving air source is connected with the driving end of the pressurizing pump, the pressurizing air source is connected with the pressurizing input end of the pressurizing pump, and the output end of the pressurizing pump is connected with the pressurizing output interface; a driving gas pressure gauge is arranged at the input end of the driving gas regulating valve; the output end of the pressurizing air source is connected with the air source pressure gauge; the output end of the booster pump is connected with the boost pressure gauge. The device can be driven by various gases, and compressed air, nitrogen, water vapor and natural gas can be used as driving gas sources of the supercharging device.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure gas cylinder filling, and more specifically to a pneumatic pressurizing device used for high-pressure gas cylinders. Background Art

[0002] With the continuous development of the aviation industry, high-pressure gas cylinders are used more and more widely in the aviation field, such as high-pressure gas cylinders used in emergency systems, oxygen systems, fire extinguishing systems, etc. The demand for filling high-pressure gas cylinders is also increasing day by day.

[0003] High-pressure gas cylinder filling technology requires the use of high-pressure compressed gas, so there is a certain degree of danger in the filling process; if the operation is improper or the equipment fails, it may cause safety accidents such as gas leakage and bottle explosion.

[0004] Therefore, it is necessary to develop a pneumatic booster device for high-pressure gas cylinders that converts low-pressure gas into high-pressure gas and fills it into high-pressure gas cylinders, which has a long service life, stable pressure, simple operation, convenient maintenance, and safe use. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the above-mentioned background technology and to provide a pneumatic pressurizing device for a high-pressure gas cylinder.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a pneumatic booster device for a high-pressure gas cylinder, characterized in that it includes a driving gas source, a boosting gas source, a boosting pump and a boosting output interface, the driving gas source is connected to the driving end of the boosting pump through a driving gas regulating valve, the boosting gas source is connected to the boosting input end of the boosting pump through an air source input valve, and the output end of the boosting pump is connected to the boosting output interface through a boosting input valve;

[0007] The input end of the driving gas regulating valve is provided with a driving gas pressure gauge;

[0008] The boost gas source output end is connected to a gas source pressure gauge;

[0009] The output end of the boost pump is connected to a boost pressure gauge.

[0010] In the above technical solution, the driving gas regulating valve is connected to the booster pump driving end through a three-position four-way reversing valve, and the three-position four-way reversing valve is connected to the vacuum interface and the vacuum pressure gauge through a vacuum generator.

[0011] In the above technical solution, the three-position four-way reversing valve is connected to the driving end of the booster pump through an oil mist collector.

[0012] In the above technical solution, the air source input valve is connected to the boost input end of the boost pump through an air source filter.

[0013] In the above technical solution, the output end of the boost pump is connected to the air release valve.

[0014] In the above technical solution, the output end of the boost pump is connected to a safety valve.

[0015] In the above technical solution, the boost output interface includes a first boost output interface and a second boost output interface, and the first boost output interface and the second boost output interface are both connected to the output end of the boost pump through a boost input valve.

[0016] In the above technical solution, the air source filter includes a filter air inlet connector, an air source filter housing, and a filter element; one end of the air source filter housing is connected to the filter air inlet connector, and the other end is provided with a filter air outlet connector; the filter element is located in the air source filter housing, and a copper sealing ring is provided between the filter element and the air source filter housing, and between the filter element and the filter air inlet connector.

[0017] In the above technical solution, the safety valve includes a safety valve housing and a safety valve air inlet connector, and the safety valve housing and the safety valve air inlet connector are sequentially provided with an adjusting screw, a first top, a spring, a second top, and a valve core.

[0018] In the above technical solution, the pneumatic booster device is located on the device frame, and two directional wheels and two universal wheels are arranged at the bottom of the device frame. The driving gas regulating valve, three-position four-way reversing valve, gas source input valve, boost input valve, connecting vent valve and safety valve, driving gas pressure gauge, gas source pressure gauge, boost pressure gauge, and vacuum pressure gauge are installed on the control panel at the top of the device frame. The gas source interface is located on the left side of the frame, and the interface of the filled high-pressure gas cylinder is located on the right side of the frame.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] 1) The utility model can be driven by a variety of gases, and compressed air, nitrogen, water vapor, and natural gas can all be used as driving gas sources for the booster device.

[0021] 2) The utility model can automatically maintain pressure. No matter what the reason for the system pressure drop, the pneumatic booster device can automatically start to replenish the pressure in the system, so that the pressure in the system is kept constant.

[0022] 3) The utility model is safe to operate. The pneumatic booster device is driven by compressed air, and there is no arc or spark generated by the electronic control device. The selected induced vacuum pump is also driven by compressed air, and vacuum is drawn in a clean and oil-free manner, which is suitable for use in flammable and explosive places.

[0023] 4) The utility model is equipped with a safety valve to ensure safe use.

[0024] 5) The driving gas of the utility model is completely isolated from the inflated gas, ensuring that the compressed gas is not contaminated by the driving gas.

[0025] 6) The temperature rise of the utility model is particularly low, which increases safety and ensures that the pressure of the pressurized gas will not drop due to cooling, thereby ensuring work efficiency.

[0026] 7) The utility model is maintenance-free, saving the trouble of replacing lubricating oil and coolant like other products. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model.

[0028] Figure 2 It is the principle diagram of the utility model.

[0029] Figure 3 It is a structural diagram of the safety valve.

[0030] Figure 4 This is a schematic diagram of the structure of the air source filter.

[0031] Among them, 1-driving air source, 11-driving air regulating valve, 12-driving air pressure gauge, 13-three-position four-way reversing valve, 14-oil mist collector, 2-boosting air source, 21-air source input valve, 22-air source pressure gauge, 3-boosting pump, 31-boosting input valve, 32-boosting pressure gauge, 33-air release valve, 4-boosting output interface, 41-first boosting output interface, 42-second boosting output interface, 51-vacuum generator, 52-vacuum Interface, 53-vacuum pressure gauge, 6-air source filter, 61-filter air inlet connector, 62-air source filter housing, 621-filter air outlet connector, 63-filter element, 64-copper sealing ring, 7-safety valve, 71-safety valve housing, 72-safety valve air inlet connector, 73-adjusting screw, 74-first top, 75-spring, 76-second top, 77-valve core, 8-equipment frame, 81-control panel, 82-castors. DETAILED DESCRIPTION

[0032] The following is a detailed description of the implementation of the utility model in conjunction with the accompanying drawings, but they do not constitute a limitation of the utility model and are only used as examples. At the same time, the advantages of the utility model will become clearer and easier to understand through the description.

[0033] Referring to the accompanying drawings, it can be seen that: a pneumatic booster device for a high-pressure gas cylinder, characterized in that: it includes a driving gas source 1, a boosting gas source 2, a boosting pump 3 and a boosting output interface 4, the driving gas source 1 is connected to the driving end of the boosting pump 3 through a driving gas regulating valve 11, the boosting gas source 2 is connected to the boosting input end of the boosting pump 3 through an air source input valve 21, and the output end of the boosting pump 3 is connected to the boosting output interface 4 through a boosting input valve 31;

[0034] The input end of the driving gas regulating valve 11 is provided with a driving gas pressure gauge 12;

[0035] The output end of the boost gas source 2 is connected to a gas source pressure gauge 22;

[0036] The output end of the boost pump 3 is connected to a boost pressure gauge 32 .

[0037] The driving gas regulating valve 11 is connected to the driving end of the booster pump 3 through a three-position four-way reversing valve 13 , and the three-position four-way reversing valve 13 is connected to a vacuum interface 52 and a vacuum pressure gauge 53 through a vacuum generator 51 .

[0038] The three-position four-way reversing valve 13 is connected to the driving end of the booster pump 3 through the oil mist generator 14 .

[0039] The air source input valve 21 is connected to the boost input end of the boost pump 3 through the air source filter 6 .

[0040] The output end of the boost pump 3 is connected to the air release valve 33 .

[0041] The output end of the boost pump 3 is connected to a safety valve 7 .

[0042] The boost output interface 4 includes a first boost output interface 41 and a second boost output interface 42 . The first boost output interface 41 and the second boost output interface 42 are both connected to the output end of the boost pump 3 through the boost input valve 31 .

[0043] The air source filter 6 includes a filter air inlet connector 61, an air source filter housing 62, and a filter element 63; one end of the air source filter housing 62 is connected to the filter air inlet connector 61, and the other end is provided with a filter air outlet connector 621; the filter element 63 is located in the air source filter housing 62, and a copper sealing ring 64 is provided between the filter element 63 and the air source filter housing 62, and between the filter element 63 and the filter air inlet connector 61.

[0044] The safety valve 7 includes a safety valve housing 71 and a safety valve air inlet connector 72 , in which an adjusting screw 73 , a first top 74 , a spring 75 , a second top 76 , and a valve core 77 are sequentially arranged.

[0045] The pneumatic booster device is located on the device frame 8. Two directional wheels and two universal wheels are arranged at the bottom of the device frame 8. The driving gas regulating valve 11, the three-position four-way reversing valve 13, the gas source input valve 21, the boost input valve 31, the connecting vent valve 33 and the safety valve 7, the driving gas pressure gauge 12, the gas source pressure gauge 22, the boost pressure gauge 32, and the vacuum pressure gauge 53 are installed on the control panel 81 at the top of the device frame 8. The gas source interface is located on the left side of the frame, and the interface of the filled high-pressure gas cylinder is located on the right side of the frame.

[0046] In actual use, the utility model supports a variety of gas media, including compressed air, nitrogen, carbon dioxide, etc., and is better suitable for different usage situations.

[0047] The equipment frame 8 is formed by folding a cold-rolled steel plate, and four 6-inch casters 82, two fixed wheels, and two universal wheels are installed at the bottom. The universal wheels are equipped with brakes for easy movement and fixing.

[0048] The utility model uses a high-precision pressure gauge to make the display more intuitive, with an accuracy of up to 0.25%; the safety valve 7 has a large exhaust volume and accurate opening pressure. After opening, it can ensure that even if the equipment continues to operate, the output pressure of the equipment will not continue to rise; the air source filter 6 is used to filter the impurity particles inside the input air source, and its filtering accuracy reaches 10μm.

[0049] The driving gas pressure gauge 12 indicates the driving gas source pressure in the input gas booster pump 3. The oil mist collector 14 can add a proper amount of lubricating oil to the driving system in case of long-term use to ensure working efficiency.

[0050] The gas source pressure gauge 22 indicates the boosting gas source pressure of the gas booster pump 3, the safety valve 7 ensures the safe use of the equipment, and the air release valve 33 is used to discharge the remaining gas in the system after the inflation is completed.

[0051] The pressurized air source is first filtered by the air source filter 6 and then transported to the inlet of the booster pump 3, and the driving air source is input. The driving air source is adjusted to the required appropriate pressure by the driving air regulating valve 11 to provide driving force for the booster pump 3 to start working. If it needs to be used for a long time, a proper amount of lubricating oil can be added to the oil mist collector 14; the pressurized gas is transported to the outlet end, and the safety valve 7 can provide overpressure protection so that the pressurized gas obtains a relatively constant pressure; if a higher purity gas is required, the air in the inflatable bottle can be pre-evacuated by the air-driven vacuum pump on the device before the inflation operation.

[0052] Before inflating, check the environment where the equipment is placed to ensure that the ambient temperature is between 0-35°C and the ambient humidity is ≤90%. Check all parts of the equipment, the gas source bottle, and the inflated bottle to see if they are clean. If oil or stains are found, remove them in time.

[0053] Check the gas pressure of the gas source bottle before use, and replace the gas source bottle with insufficient pressure; check whether the equipment is operating normally before use; check whether the equipment is airtight; if the operation is abnormal or there is a gas leak in the equipment, it is not allowed to start; after checking, empty the remaining gas in the equipment and close all valves on the control panel 81.

[0054] If necessary, the filled container is evacuated first, and the three-position four-way reversing valve 13 is switched to the vacuuming mode; the ejection type vacuum pump starts to work; after the required vacuum degree is reached, the three-position four-way reversing valve 13 is switched to the closed position to stop the vacuum pump.

[0055] Connect the gas source pipe to the gas source bottle, and connect the inflation pipe to the charged bottle; adjust the driving gas source pressure of the booster pump 3; slowly open the gas source bottle valve to observe whether the gas source pressure meets the requirements; if the gas source pressure meets the requirements, slowly open the gas source input valve 21 on the control panel 81, and switch the three-position four-way reversing valve 13 to the boosting mode; open the driving gas regulating valve 11, the equipment starts to boost, and after the pressure value of the boost pressure gauge 32 reaches the required value, slowly open the boost input valve 31 to allow the boosted gas to convect into the charged bottle; observe the gas source pressure gauge 22 and the boost pressure gauge 32. When the pressure values ​​are equal and there is no sound of airflow, the convection ends. Close the gas source valve and the valve of the charged bottle, and open the vent valve 33 to discharge the remaining gas in the equipment.

[0056] Safety valve 7 is a special safety valve designed for pneumatic booster equipment. It has the characteristics of large exhaust volume and accurate opening pressure. After opening, it can ensure that the system pressure will not rise even if the equipment continues to operate.

[0057] An air source filter 6 is installed at the inlet and outlet of the pneumatic booster equipment to filter foreign particles inside the air path system, with a filtering accuracy of up to 10μm; the air source filter housing 62, filter air inlet connector 61, and filter element 63 of the air source filter 6 are all made of 316 stainless steel, and the welding of the filter element 63 adopts the advanced underwater welding process, which fully guarantees the firmness and beauty of the welding.

[0058] Other parts not described belong to the prior art.

Claims

1. A pneumatic booster device for a high-pressure gas cylinder, characterized in that: The invention comprises a driving gas source (1), a boosting gas source (2), a boosting pump (3) and a boosting output interface (4), wherein the driving gas source (1) is connected to the driving end of the boosting pump (3) via a driving gas regulating valve (11), the boosting gas source (2) is connected to the boosting input end of the boosting pump (3) via an air source input valve (21), and the output end of the boosting pump (3) is connected to the boosting output interface (4) via a boosting input valve (31); The input end of the driving gas regulating valve (11) is provided with a driving gas pressure gauge (12); The output end of the pressurized gas source (2) is connected to a gas source pressure gauge (22); The output end of the boost pump (3) is connected to a boost pressure gauge (32).

2. A pneumatic booster device for a high-pressure gas cylinder according to claim 1, characterized in that: The driving gas regulating valve (11) is connected to the driving end of the booster pump (3) via a three-position four-way reversing valve (13), and the three-position four-way reversing valve (13) is connected to a vacuum interface (52) and a vacuum pressure gauge (53) via a vacuum generator (51).

3. A pneumatic booster device for a high-pressure gas cylinder according to claim 2, characterized in that: The three-position four-way reversing valve (13) is connected to the driving end of the booster pump (3) via an oil mist generator (14).

4. A pneumatic booster device for a high-pressure gas cylinder according to claim 2, characterized in that: The air source input valve (21) is connected to the boost input end of the boost pump (3) via the air source filter (6).

5. A pneumatic booster device for a high-pressure gas cylinder according to claim 2, characterized in that: The output end of the booster pump (3) is connected to an air release valve (33).

6. A pneumatic booster device for a high-pressure gas cylinder according to claim 5, characterized in that: The output end of the booster pump (3) is connected to a safety valve (7).

7. A pneumatic booster device for a high-pressure gas cylinder according to claim 1, characterized in that: The boost output interface (4) comprises a first boost output interface (41) and a second boost output interface (42), and the first boost output interface (41) and the second boost output interface (42) are both connected to the output end of the boost pump (3) via a boost input valve (31).

8. A pneumatic booster device for a high-pressure gas cylinder according to claim 4, characterized in that: The air source filter (6) comprises a filter air inlet connector (61), an air source filter housing (62), and a filter element (63); one end of the air source filter housing (62) is connected to the filter air inlet connector (61), and the other end is provided with a filter air outlet connector (621); the filter element (63) is located in the air source filter housing (62), and a copper sealing ring (64) is provided between the filter element (63) and the air source filter housing (62), and between the filter element (63) and the filter air inlet connector (61).

9. A pneumatic booster device for a high-pressure gas cylinder according to claim 6, characterized in that: The safety valve (7) comprises a safety valve housing (71) and a safety valve air inlet connector (72), wherein an adjusting screw (73), a first top (74), a spring (75), a second top (76), and a valve core (77) are sequentially arranged in the safety valve housing (71) and the safety valve air inlet connector (72).

10. A pneumatic booster device for a high-pressure gas cylinder according to claim 6, characterized in that: The pneumatic booster device is located on the device frame (8). Two directional wheels and two universal wheels are arranged at the bottom of the device frame (8). The driving gas regulating valve (11), the three-position four-way reversing valve (13), the gas source input valve (21), the boost input valve (31), the connecting vent valve (33) and the safety valve (7), the driving gas pressure gauge (12), the gas source pressure gauge (22), the boost pressure gauge (32), and the vacuum pressure gauge (53) are installed on the control panel (81) at the top of the device frame (8). The gas source interface is located on the left side of the frame, and the interface of the high-pressure gas cylinder to be filled is located on the right side of the frame.

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