CN215178506U

CN215178506U - Small-flow overflowing component liquid flow test bed equipment

Info

Publication number: CN215178506U
Application number: CN202121195926.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Sichuan Xinghe Power Space Technology Co ltd; Beijing Xinghe Power Equipment Technology Co Ltd; Galactic Energy Beijing Space Technology Co Ltd
Current assignee: Sichuan Xinghe Power Space Technology Co ltd; Beijing Xinghe Power Equipment Technology Co Ltd; Galactic Energy Beijing Space Technology Co Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-14
Anticipated expiration: 2031-05-31

Abstract

The liquid flow test bed equipment for the small-flow overflowing component is wide in measurement range and high in measurement and control precision. The pure water system is connected with a high-pressure water pipe in the process system and provides a deionized water test medium for the process system; the gas distribution system is connected with the process system, provides driving gas for a pneumatic valve in the process system and provides front-end test pressure for the process system; the measuring system collects test data; the control system controls the opening and closing of a process system valve; the process system comprises: the system comprises a high-pressure process gas module, a high-pressure pure water module and a process pipeline module; the high-pressure process gas module consists of a high-pressure air compressor and a high-pressure container, wherein the high-pressure air compressor is used for pressurizing air, and the high-pressure container is used for storing high-pressure air; the high-pressure pure water module consists of a high-pressure container, a safety valve and a liquid level meter, wherein the high-pressure container stores test media of deionized water, the safety valve ensures safe operation of the system, and the liquid level meter measures and displays the liquid level position in the container.

Description

Small-flow overflowing component liquid flow test bed equipment

Technical Field

The utility model relates to a rocket control's technical field especially relates to a low discharge overflows component liquid flow test bench and equips, and it is used for carrying out the liquid flow test to the spare part of liquid rocket engine to verify performance parameters such as its flow characteristic, flow resistance characteristic, flow state performance.

Background

In the research, development, design and manufacturing processes of the liquid rocket engine, the design and processing correctness of parts and components such as a thrust chamber product, a valve product, a venturi tube and the like of the rocket engine are verified. Fluid flow tests are required to be carried out on parts of the engine so as to verify performance parameters such as flow characteristics, flow resistance characteristics and flow state performance of the parts. The liquid flow tests are various, the flow and pressure requirements are different, and the structure of parts and the size of a connector are different.

At present, in China, for small liquid flow test beds, water is filled in a pressure tank firstly, then a high-pressure gas extrusion mode is used for providing a test medium, and a control mode of a manual valve is adopted in the aspect of control; in the aspect of data acquisition and measurement, test data acquisition is still carried out by adopting modes such as a mechanical pressure gauge, manual meter reading and recording and the like. The method has the defects of inaccurate data acquisition and recording, untimely control, short test time and the like.

Therefore, a liquid flow test system with comprehensive test function, wide test range and high test precision is needed in the field.

Disclosure of Invention

For overcoming the defects of the prior art, the to-be-solved technical problem of the utility model is to provide a small flow overflows component liquid flow test bench and equips, its measuring range is wide, the measurement and control precision is high.

The technical scheme of the utility model is that: this kind of small flow overflows component liquid flow test bench equipment, it includes: the system comprises a process system, a measurement system, a control system, a gas distribution system and a pure water system;

the pure water system is connected with a high-pressure water pipe in the process system and provides a deionized water test medium for the process system; the gas distribution system is connected with the process system, provides driving gas for a pneumatic valve in the process system and provides front-end test pressure for the process system; the measuring system collects test data; the control system controls the opening and closing of a process system valve;

the process system comprises: the system comprises a high-pressure process gas module, a high-pressure pure water module and a process pipeline module; the high-pressure process gas module consists of a high-pressure air compressor and a high-pressure container, wherein the high-pressure air compressor is used for pressurizing air, and the high-pressure container is used for storing high-pressure air; the high-pressure pure water module consists of a high-pressure container, a safety valve and a liquid level meter, wherein the high-pressure container stores test media of deionized water, the safety valve ensures safe operation of the system, and the liquid level meter measures and displays the liquid level position in the container.

The pure water system of the utility model is connected with a high-pressure water pipe in the process system, and provides a deionized water test medium for the process system; the gas distribution system is connected with the process system, provides driving gas for a pneumatic valve in the process system and provides front-end test pressure for the process system; the measuring system collects test data; the control system controls the opening and closing of a process system valve; the process system comprises: the system comprises a high-pressure process gas module, a high-pressure pure water module and a process pipeline module; the high-pressure process gas module consists of a high-pressure air compressor and a high-pressure container, wherein the high-pressure air compressor is used for pressurizing air, and the high-pressure container is used for storing high-pressure air; the high-pressure pure water module consists of a high-pressure container, a safety valve and a liquid level meter, wherein the high-pressure container stores a test medium of deionized water, the safety valve ensures the safe operation of the system, and the liquid level meter measures and displays the liquid level position in the container; the measurement range is 1-4500 g/s, all liquid flow tests of attitude control engine products can be met, and therefore the measurement range is wide; the measurement and control are carried out through the upper computer, so the measurement and control precision is high.

Drawings

Fig. 1 is a schematic structural diagram of a gas distribution system of a small flow over-current component liquid flow test bed apparatus according to the present invention.

Fig. 2 is a schematic structural diagram of a pure water system of a small flow stream block liquid flow test stand according to the present invention.

Fig. 3 is a schematic structural diagram of a small flow over-current component liquid flow test bed apparatus according to the present invention.

Fig. 4 is a schematic diagram of a test fixture of a small flow over-current component fluid flow test stand apparatus according to the present invention.

Fig. 5 is an overall block diagram of a small flow over-current component flow bench arrangement according to the present invention.

Detailed Description

As shown in fig. 5, the small flow stream test stand apparatus comprises: the system comprises a process system 1, a measurement system 2, a control system 3, a gas distribution system 4 and a pure water system 5, and can also comprise a test tool (see figure 4);

Preferably, the process piping module comprises: the device comprises a manual stop valve, a pneumatic ball valve and a mass flow meter, wherein the manual stop valve controls the on-off of a pipeline and adjusts the parameters of a test medium, the pneumatic ball valve rapidly controls the on-off of a process pipeline, and the mass flow meter measures the flow of the test medium passing through the process pipeline.

Preferably, the process piping module has a first five-way solenoid valve 11, a second five-way solenoid valve 12; the first five-way solenoid valve controls the air intake and air exhaust of the 1# water tank 61 and the 2# water tank 62; the second five-way solenoid valve controls the water outlet of the No. 1 water tank and the No. 2 water tank.

Preferably, as shown in fig. 2, the pure water system includes: a raw water tank 51, a rough filtration system 52, a centrifugal pump 53, a reverse osmosis filtration system 54, and a pure water tank 55; the pure water system prepares tap water into deionized water, and stores the prepared pure water in a pure water tank.

Preferably, the raw water tank stores tap water to be treated, and the coarse filtration system filters impurities in the water and exchanges other electrolyte ions in the water; the reverse osmosis filtration system filters other electrolyte ions in the water; the pure water tank is used for storing the prepared pure water.

Preferably, as shown in fig. 1, the air distribution system includes: a manual stop valve 41, a pressure reducing valve 42, a pressure gauge 43 and a gas distribution table body; the gas distribution table is used for product valve control, process pneumatic valve control, product blowing and removal and high-pressure container pressurization; the manual stop valve controls a process pipeline to be opened and closed; the pressure reducing valve reduces the pressure of the pressure reducing gas and adjusts the pressure to the pressure required by the test; the pressure gauge displays the current pressure in the pipeline.

Preferably, the small flow stream block test stand apparatus is mounted on a test fixture at a distance from the ground. For example, the pipeline is 300mm from the ground. The design is convenient for the disassembly and the assembly of the test piece. In addition, the test bench well meets the test requirements of the test engine.

Referring to fig. 3, the working principle of the present invention is: during the test, the deionized normal temperature water is extruded out of the high pressure water tank in a high pressure gas extrusion mode, and then the high pressure water passes through the flow passage components such as the manual stop valve, the pneumatic ball valve, the mass flow meter, the manual stop valve and the filter and reaches a product test piece.

And test data are automatically acquired in the whole test process.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and all the technical matters of the present invention are to make any simple modification, equivalent change and modification to the above embodiments, and still belong to the protection scope of the present invention.

Claims

1. The utility model provides a small flow overflows subassembly liquid flow test bench equipment which characterized in that: it includes: the system comprises a process system (1), a measurement system (2), a control system (3), a gas distribution system (4) and a pure water system (5);

2. The small flow fluidic module fluidic test bed apparatus of claim 1, wherein: the process line module comprises: the device comprises a manual stop valve, a pneumatic ball valve and a mass flow meter, wherein the manual stop valve controls the on-off of a pipeline and adjusts the parameters of a test medium, the pneumatic ball valve rapidly controls the on-off of a process pipeline, and the mass flow meter measures the flow of the test medium passing through the process pipeline.

3. The small flow fluidic module fluidic test bed apparatus of claim 2, wherein: the process pipeline module is provided with a first five-way electromagnetic valve (11) and a second five-way electromagnetic valve (12); the first five-way electromagnetic valve controls the air intake and air discharge of the No. 1 water tank (61) and the No. 2 water tank (62); the second five-way solenoid valve controls the water outlet of the No. 1 water tank and the No. 2 water tank.

4. The small flow fluidic module fluidic test bed apparatus of claim 3, wherein: the pure water system includes: a raw water tank (51), a rough filtration system (52), a centrifugal pump (53), a reverse osmosis filtration system (54) and a pure water tank (55); the pure water system prepares tap water into deionized water, and stores the prepared pure water in a pure water tank.

5. The small flow fluidic module fluidic test bed apparatus of claim 4, wherein: the raw water tank stores tap water to be treated, and the rough filtration system filters impurities in the water and exchanges other electrolyte ions in the water; the reverse osmosis filtration system filters other electrolyte ions in the water; the pure water tank is used for storing the prepared pure water.

6. The small flow fluidic module fluidic test bed apparatus of claim 5, wherein: the gas distribution system comprises: the manual stop valve (41), the pressure reducing valve (42), the pressure gauge (43) and the gas distribution table body; the gas distribution table is used for product valve control, process pneumatic valve control, product blowing and removal and high-pressure container pressurization; the manual stop valve controls a process pipeline to be opened and closed; the pressure reducing valve reduces the pressure of the pressure reducing gas and adjusts the pressure to the pressure required by the test; the pressure gauge displays the current pressure in the pipeline.

7. The small flow fluidic module fluidic test bed apparatus of claim 6, wherein: the small-flow overflowing component liquid flow test bed equipment is arranged on a test tool and is away from the ground by a certain distance.