Gas supercharging equipment

Abstract

The utility model discloses gas supercharging equipment, and relates to the technical field of gas supercharging. The gas supercharging equipment comprises a driving gas system and a gas supercharging system, the driving gas system comprises a driving gas inlet pipeline, a pressure reducer and a speed regulating valve, and the pressure reducer and the speed regulating valve are arranged on the driving gas inlet pipeline; the gas pressurization system comprises a low-pressure gas input pipeline, a gas pressurization pump and a high-pressure gas output pipeline; a gas inlet of the gas booster pump is connected with a low-pressure gas input pipeline; a gas outlet is connected with a high-pressure gas output pipeline; a third pressure gauge is arranged on the high-pressure gas output pipeline; and the driving gas inlet pipeline is connected with a driving cylinder of the gas booster pump. The gas supercharging equipment can utilize compressed air as a driving gas source to drive the gas supercharging pump to boost low-pressure gas to required high-pressure gas to be output, so that the low-pressure gas is fully utilized, and the problems that a low-pressure gas cylinder cannot be fully utilized and waste is serious in a liquid rocket engine test are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas supercharging, in particular to the field of aerospace liquid rocket engine testing, and relates to a gas supercharging device. Background Art

[0002] During the development of liquid rocket engines, high-pressure gas is often used to test the airtightness and operation of products or parts. Usually, when the high-pressure gas in the cylinder drops below the pressure required for the test, it can no longer be used. At this time, a new cylinder with a higher pressure needs to be replaced. The replaced cylinder can only be used in tests with lower pressures. However, the demand for low-pressure cylinders in actual use is limited, resulting in an increasing backlog of cylinders. As a result, a large amount of low-pressure gas cannot be effectively utilized, resulting in gas waste. For some expensive rare gases, this will further increase gas costs. Therefore, there is an urgent need to develop a gas boosting device that can boost the low-pressure gas for reuse, so that the gas in the low-pressure cylinder can be fully utilized, reducing gas waste and saving gas costs. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the present utility model is achieved through the following technical solutions: providing a gas boosting device, including a driving gas system and a gas boosting system;

[0004] The driving gas system includes a driving gas inlet pipeline, a pressure reducer and a speed regulating valve, and the pressure reducer and the speed regulating valve are arranged on the driving gas inlet pipeline;

[0005] The gas boosting system includes a low-pressure gas input pipeline, a gas booster pump and a high-pressure gas output pipeline; the gas inlet of the gas booster pump is connected to the low-pressure gas input pipeline, and the gas outlet is connected to the high-pressure gas output pipeline; the high-pressure gas output pipeline is provided with a third pressure gauge;

[0006] The driving gas inlet pipeline is connected to the driving cylinder of the gas booster pump.

[0007] Preferably, a first pressure gauge is provided on the driving gas inlet pipeline.

[0008] Preferably, a first stop valve is provided on the low-pressure gas input pipeline.

[0009] Furthermore, a second stop valve is provided on the high-pressure gas output pipeline, and the third pressure gauge is located on the high-pressure gas output pipeline between the gas booster pump and the second stop valve.

[0010] Furthermore, it also includes an exhaust pipeline; the exhaust pipeline is connected to the high-pressure gas output pipeline between the gas booster pump and the second stop valve; and an exhaust valve is provided on the exhaust pipeline.

[0011] Preferably, a muffler is provided at the air outlet of the exhaust pipe.

[0012] Preferably, the driving air intake pipeline is provided with a first filter.

[0013] Furthermore, a second pressure gauge is provided on the low-pressure gas input pipeline.

[0014] Furthermore, the low-pressure gas input pipeline is provided with a second filter.

[0015] Furthermore, it also includes a gas cylinder and a fourth pressure gauge; the gas cylinder is connected to the high-pressure gas output pipeline between the gas booster pump and the second shut-off valve; the fourth pressure gauge is arranged on the high-pressure gas output pipeline, and the second shut-off valve is located between the third pressure gauge and the fourth pressure gauge.

[0016] The gas boosting equipment of the present invention can use compressed air as a driving gas source. The compressed air is transported to the driving cylinder of the gas booster pump after the pressure and flow are adjusted by the driving gas system. The driving gas booster pump boosts the low-pressure gas to the required high-pressure gas output, so that the low-pressure gas is fully utilized, the gas cost is saved, and the problem of serious waste due to the inability to fully utilize the low-pressure gas cylinders in liquid rocket engine tests is effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0018] Figure 1 This is a schematic diagram of the gas boosting device in Example 1 of the present utility model.

[0019] Figure 2 This is a schematic diagram of the gas boosting equipment of Example 2 of the present utility model.

[0020] Figure 3 This is a schematic diagram of the gas boosting equipment in Example 3 of the present utility model.

[0021] Figure 4 This is a schematic diagram of the gas boosting equipment of Example 4 of the present utility model.

[0022] Figure 5 This is a schematic diagram of the gas boosting device of Example 5 of the present utility model.

[0023] Description of the symbols in the figure:

[0024] 1 - First filter, 2 - Pressure reducer, 3 - First pressure gauge, 4 - Speed control valve, 5 - Second filter, 6 - First stop valve, 7 - Second pressure gauge, 8 - Gas booster pump, 9 - Third pressure gauge, 10 - Exhaust valve, 11 - Silencer, 12 - Second stop valve, 13 - Driving gas inlet pipeline, 14 - Low-pressure gas input pipeline, 15 - High-pressure gas output pipeline, 16 - Exhaust pipeline, 17 - Gas storage cylinder, 18 - Fourth pressure gauge. Detailed implementation mode

[0025] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0026] It should also be understood that the terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in the specification of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0027] Embodiment 1

[0028] Please refer to Figure 1 The gas boosting equipment shown, including a driving gas inlet pipeline 13, a low-pressure gas input pipeline 14, a high-pressure gas output pipeline 15, a first filter 1, a pressure reducer 2, a first pressure gauge 3, a speed control valve 4, a second filter 5, a first stop valve 6, a second pressure gauge 7, a gas booster pump 8, a third pressure gauge 9, an exhaust valve 10, a silencer 11, and a second stop valve 12. This gas boosting equipment uses compressed air as the driving gas source to push the reciprocating gas booster pump 8, and boost the low-pressure gas source input into the gas booster pump 8 to the required high-pressure gas source for output.

[0029] Connection relationship of each component:

[0030] The first filter 1, the pressure reducer 2, the first pressure gauge 3, the speed control valve 4, and the driving gas inlet pipeline 13 form the driving gas system of the gas boosting equipment, using compressed air as the gas source. The first filter 1, the pressure reducer 2, the first pressure gauge 3, and the speed control valve 4 are arranged on the driving gas inlet pipeline 13. Along the conveying direction of the compressed air in the driving gas inlet pipeline 13, the pressure reducer 2 is installed behind the first filter 1, the speed control valve 4 is installed behind the pressure reducer 2, the first pressure gauge 3 is installed between the pressure reducer 2 and the speed control valve 4, and the driving gas inlet pipeline 13 is connected to the driving cylinder of the gas booster pump 8.

[0031] The second filter 5, the first shut-off valve 6, the second pressure gauge 7, the gas booster pump 8, the third pressure gauge 9, the exhaust valve 10, the silencer 11, the second shut-off valve 12, the low-pressure gas input pipeline 14, the high-pressure gas output pipeline 15, and the exhaust pipeline 16 constitute the gas boosting system of the gas boosting equipment. The intake port of the gas booster pump 8 is connected to the low-pressure gas input pipeline 14, and the outlet port of the gas booster pump 8 is connected to the high-pressure gas output pipeline 15. The second filter 5, the first shut-off valve 6, and the second pressure gauge 7 are arranged on the low-pressure gas input pipeline 14. Along the conveying direction of the low-pressure gas in the low-pressure gas input pipeline 14, the second pressure gauge 7 is installed after the second filter 5, and the first shut-off valve 6 is installed between the second filter 5 and the first shut-off valve 6. The third pressure gauge 9 and the second shut-off valve 12 are arranged on the high-pressure gas output pipeline 15, and the third pressure gauge 9 is located between the gas booster pump 8 and the second shut-off valve 12. The exhaust valve 10 is arranged on the exhaust pipeline 16. The intake port of the exhaust pipeline 16 is connected to the high-pressure gas output pipeline 15 between the gas booster pump 8 and the second shut-off valve 12, and the silencer 11 is installed at the outlet port of the exhaust pipeline 16.

[0032] Functions of each component:

[0033] The first filter 1 filters the input compressed air to ensure the cleanliness of the compressed air at the rear end.

[0034] The pressure reducer 2 adjusts the pressure of the input compressed air and controls the magnitude of the driving force of the gas booster pump 8.

[0035] The first pressure gauge 3 displays the magnitude of the pressure of the compressed air in the driving gas inlet pipeline 13.

[0036] The speed control valve 4 adjusts the flow rate of the compressed air and controls the speed of the gas booster pump 8.

[0037] The second filter 5 filters the input low-pressure gas source to ensure the cleanliness of the gas at the rear end.

[0038] The first shut-off valve 6 is the inlet valve of the gas booster pump 8. After the first shut-off valve 6 is opened, the input low-pressure gas source enters the gas booster pump 8.

[0039] The second pressure gauge 7 is used to display the pressure of the input low-pressure gas source in the low-pressure gas input pipeline 14.

[0040] The gas booster pump 8 uses compressed air to drive the reciprocating motion of the booster cylinder, drives the booster pump to move, boosts the low-pressure gas source to the required high-pressure gas source. There is a check valve inside the booster pump, and the gas can only be output from the low-pressure gas source side to the high-pressure gas source side.

[0041] The third pressure gauge 9 is used to display the gas pressure in the high-pressure gas output pipeline 15.

[0042] Exhaust valve 10, used to control the opening and closing of the exhaust pipe 16.

[0043] Silencer 11, used to reduce exhaust noise.

[0044] Second shut-off valve 12, used to cut off / regulate the gas output of the high-pressure gas output pipeline 15.

[0045] Driving gas inlet pipeline 13, used to supply compressed air to the gas booster pump 8.

[0046] Low-pressure gas input pipeline 14, used to supply low-pressure gas source to the gas booster pump 8.

[0047] High-pressure gas output pipeline 15, used for the gas booster pump 8 to output high-pressure gas source.

[0048] Exhaust pipe 16, used for the exhaust of the gas boosting equipment.

[0049] Medium flow direction:

[0050] Along the conveying direction of the driving gas inlet pipeline 13, when the compressed air enters the first filter 1 from the inlet of the first filter 1, after being filtered by the first filter 1, it reaches the pressure reducer 2. After the pressure is adjusted by the pressure reducer 2, it reaches the speed regulator 4. After the flow rate is adjusted by the speed regulator 4, it is supplied to the driving cylinder of the gas booster pump 8 to do work; the first pressure gauge 3 can display the gas pressure after the pressure regulation of the pressure reducer 2.

[0051] Along the conveying direction of the low-pressure gas input pipeline 14, when the low-pressure gas to be boosted enters the second filter 5 from the inlet of the second filter 5, after being filtered by the second filter 5, it reaches the first shut-off valve 6. Open the first shut-off valve 6, and the low-pressure gas reaches the air inlet of the gas booster pump 8. After being boosted by the gas booster pump 8, it forms high-pressure gas and is output along the high-pressure gas output pipeline 15 to the front of the second shut-off valve 12. Open the second shut-off valve 12, and the boosted gas is output to the gas consumption point; the second pressure gauge 7 is used to display the pressure of the input low-pressure gas, and the third pressure gauge 9 is used to display the pressure of the high-pressure gas output by the gas booster pump 8. When the gas boosting equipment stops operating, the exhaust valve 10 can be opened to discharge the high-pressure gas in the system. It can be understood that the exhaust valve 10 needs to be in the closed state when the gas boosting equipment is boosting.

[0052] Operating process of the low-pressure gas cylinder:

[0053] (1) Connect the compressed air to the input port of the driving gas inlet pipeline 13, connect the low-pressure gas cylinder to the input port of the low-pressure gas input pipeline 14, and connect the output port of the high-pressure gas output pipeline 15 to the gas consumption point.

[0054] (2) Adjust the pressure reducer 2 to prepare the driving gas for the gas booster pump 8.

[0055] (3) Open the first cut-off valve 6, and the low-pressure gas source is supplied to the inlet of the second cut-off valve 12 through the gas booster pump 8 (the exhaust valve 10 is in the closed state).

[0056] (4) Open the second cut-off valve 12, and the low-pressure gas is supplied to the gas-using point. When the output gas pressure of the gas booster pump 8 is balanced with the input gas pressure, the readings of the second pressure gauge 7 and the third pressure gauge 9 are the same at this time.

[0057] (5) Slowly open the speed control valve 4, and the gas booster pump 8 starts to work, and the output gas pressure of the gas booster pump 8 increases; by adjusting the speed control valve 4, the working speed of the gas booster pump 8 can be adjusted. The third pressure gauge 9 shows the pressure of the gas in the pipeline after boosting. As the gas booster pump 8 works continuously, the input low-pressure gas is boosted into high-pressure gas and continuously output.

[0058] Replace the low-pressure gas cylinder / Equipment shutdown:

[0059] In the gas boosting equipment of this embodiment, in actual use, the gas-using point can generally be understood as a high-pressure container, that is, the high-pressure gas generated by the gas boosting equipment is transported to the high-pressure container for storage.

[0060] As the gas booster pump 8 works, the gas pressure provided by the low-pressure gas cylinder will become lower and lower. At this time, the second cut-off valve 12 needs to be closed to keep the gas pressure at the rear end of the second cut-off valve 12 (to prevent the gas in the high-pressure container from flowing back); then close the valve of the low-pressure gas cylinder. The first cut-off valve 6 is in the open state, open the exhaust valve 10 to discharge the gas in the front section of the second cut-off valve 12. When the value of the second pressure gauge 7 is 0, the low-pressure gas cylinder can be removed and replaced with a gas cylinder with a higher pressure.

[0061] When shutting down the gas boosting equipment, on the basis of removing the low-pressure gas cylinder as above, it is also necessary to adjust the gas pressure at the output end of the second cut-off valve 12 (that is, in the high-pressure gas output pipeline 15 between the second cut-off valve 12 and the high-pressure container). Specifically, close the first cut-off valve 6 and the valve of the high-pressure container. The exhaust valve 10 is in the open state, open the second cut-off valve 12, and at this time, the compressed gas behind the second cut-off valve 12 can be reduced or completely discharged.

[0062] Therefore, the gas boosting equipment of this embodiment can use compressed air as the driving gas source. After the compressed air is adjusted to the required pressure and flow rate by the driving gas system, it is transported to the driving cylinder of the gas booster pump. The gas booster pump boosts the low-pressure gas to the required high-pressure gas for output, making full use of the low-pressure gas, saving the gas consumption cost, and effectively solving the problem of serious waste caused by the incomplete utilization of low-pressure gas cylinders in liquid rocket engine tests.

[0063] Embodiment 2

[0064] Please refer to Figure 2The gas boosting equipment shown. The difference between the gas boosting equipment of this embodiment and that of Embodiment 1 is that the first filter is not provided on the driving gas inlet pipeline 13, and the second filter is not provided on the low-pressure gas input pipeline 14. Other structures are the same as those of the gas boosting equipment in Embodiment 1.

[0065] Embodiment 3

[0066] Please refer to Figure 3 The gas boosting equipment shown. The difference between the gas boosting equipment of this embodiment and that of Embodiment 2 is that the exhaust valve 10, the silencer 11 and the exhaust pipe 16 are not provided. Other structures are the same as those of the gas boosting equipment in Embodiment 2.

[0067] Embodiment 4

[0068] Please refer to Figure 4 The gas boosting equipment shown. The difference between the gas boosting equipment of this embodiment and that of Embodiment 3 is that the first pressure gauge is not provided on the driving gas inlet pipeline 13, and the first pressure gauge is not provided on the low-pressure gas input pipeline 14. Other structures are the same as those of the gas boosting equipment in Embodiment 3.

[0069] Embodiment 5

[0070] Please refer to Figure 5 The gas boosting equipment shown. The difference between the gas boosting equipment of this embodiment and that of Embodiment 1 is that a gas storage cylinder 17 and a fourth pressure gauge 18 are connected to the high-pressure gas output pipeline 15; the gas storage cylinder 17 is connected to the high-pressure gas output pipeline between the gas boosting pump 8 and the second stop valve 12; the fourth pressure gauge 18 is located between the second stop valve 12 and the output port of the high-pressure gas output pipeline (i.e., the second stop valve is located between the third pressure gauge and the fourth pressure gauge). Other structures are the same as those of the gas boosting equipment in Embodiment 1.

[0071] For the gas boosting equipment of this embodiment, when the exhaust valve 10 and the second stop valve 12 are closed, the high-pressure gas generated by the gas boosting pump 8 can be stored in the gas storage cylinder 17 for standby. When high-pressure gas needs to be output, the second stop valve 12 is opened to output the high-pressure gas in the gas storage cylinder 17, and the fourth pressure gauge 18 can display the pressure of the output high-pressure gas.

[0072] It can be understood that in this embodiment, the gas boosting pump 8 can also work to output high-pressure gas while the gas storage cylinder 17 outputs high-pressure gas.

[0073] For this gas boosting equipment, a gas storage cylinder 17 is further provided after the gas boosting pump 8 for buffering and temporarily storing high-pressure gas. During operation, the high-pressure gas can be first filled into the gas storage cylinder 17, and the air pressure can be allowed to be higher than the gas consumption demand, and then it is supplied to the subsequent gas-using equipment after throttling through the second stop valve 12.

[0074] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A gas pressurization device, characterized in that, It includes a driving gas system and a gas boosting system; The driving gas system includes a driving gas inlet pipeline, a pressure reducer and a speed regulator valve, and the pressure reducer and the speed regulator valve are arranged on the driving gas inlet pipeline; The gas boosting system includes a low-pressure gas input pipeline, a gas booster pump and a high-pressure gas output pipeline; the inlet of the gas booster pump is connected to the low-pressure gas input pipeline, and the outlet is connected to the high-pressure gas output pipeline; a third pressure gauge is provided on the high-pressure gas output pipeline; The driving gas inlet pipeline is connected to the driving cylinder of the gas booster pump; A second stop valve is provided on the high-pressure gas output pipeline, and the third pressure gauge is located on the high-pressure gas output pipeline between the gas booster pump and the second stop valve; It also includes an exhaust pipeline; the exhaust pipeline is connected to the high-pressure gas output pipeline between the gas booster pump and the second stop valve; an exhaust valve is provided on the exhaust pipeline; A silencer is provided at the outlet of the exhaust pipeline; It also includes a gas storage cylinder and a fourth pressure gauge; the gas storage cylinder is connected to the high-pressure gas output pipeline between the gas booster pump and the second stop valve; the fourth pressure gauge is arranged on the high-pressure gas output pipeline, and the second stop valve is located between the third pressure gauge and the fourth pressure gauge.

2. The gas pressurization device according to claim 1, characterized in that, A first pressure gauge is provided on the driving gas inlet pipeline.

3. The gas boosting device according to claim 1, characterized in that, A first stop valve is provided on the low-pressure gas input pipeline.

4. The gas pressurization device according to claim 1, characterized in that, A first filter is provided on the driving gas inlet pipeline.

5. The gas boosting device according to claim 1, characterized in that, A second pressure gauge is provided on the low-pressure gas input pipeline.

6. The gas boosting device according to claim 1, wherein, A second filter is provided on the low-pressure gas input pipeline.

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