Atomization testing device special for inspirator

Abstract

The utility model discloses an atomization testing device special for an injector. The atomization testing device comprises a cart, a silencer and a testing assembly. The testing assembly has two paths, namely an oxygen path assembly and a combustion path assembly; the oxygen path assembly comprises an oxygen path pressure storage tank, an oxygen path pressure controller, an oxygen path pressure gauge, an oxygen path flowmeter, an oxygen path filter, an oxygen path safety valve and an oxygen path funnel; the combustion path assembly comprises a combustion path pressure storage tank, a combustion path pressure controller, a combustion path pressure gauge, a combustion path flowmeter, a combustion path filter, a combustion path safety valve and a combustion path funnel. Deionized water is used as a propellant working medium, an oxygen path and a combustion path are simulated, the front pressure of the injector is changed by adjusting the pressure controller, the flow of the deionized water passing through the injector is measured through the flow meter, the atomization state is photographed and recorded, and the relation between the flow of the deionized water of the injector and the pressure drop is measured. The pressure drop under the rated deionized water flow is obtained, and the flow, the pressure drop and the atomization effect of the injector are tested and verified at the same time.

Description

Technical Field

[0001] This invention belongs to the field of product testing, specifically relating to a special atomization testing device for injectors. Background Technology

[0002] The working principle of the injector is: oxygen and fuel propulsion.

[0003] The propellant flows into the combustion chamber through the injector at a specific flow rate, achieving good atomization and mixing, thus organizing combustion for high efficiency and enabling the thrust chamber to achieve its predetermined performance. Taking a certain type of injector as an example, such as... Figure 1 As shown, the injector is a single-pair DC mutual-impact type, employing a symmetrical structure design with two injection holes of equal diameter. The two holes, with their centerlines at a 50° angle, serve as the oxygen and combustion paths. Thrust can be adjusted by controlling the flow rate of the oxidizer through the injector. However, when the oxidizer flow rate changes dramatically, the injection pressure drop of the injector increases rapidly, altering the atomization effect. Inadequate atomization hinders stable combustion in the thrust chamber and efficient propellant supply. Therefore, atomization testing is a crucial performance indicator for injector products. Based on past experience, this type of testing equipment is relatively heavy, inconvenient to move, and difficult to control in terms of flow rate and pressure, impacting production efficiency.

[0004] The patent search query (sprayer, atomization test) yielded 2 patent entries, including two patents related to this invention:

[0005] (1) CN106089492A, a performance testing device for an injector, in order to observe whether the tangential holes of the injector cooling ring are blocked and whether the jet is uniform under a given low flow rate, this invention patent ensures that water enters and exits according to the required flow channel through the structural design of the performance testing device, ensuring the flow rate of the flow channel, and simulating the actual working state of a certain type of injector for experimentation. This patent is to observe whether the pressure drop meets the requirements during the process of adjusting the flow rate within a certain range, record the atomization effect after the two media are injected, and determine whether there is pressure oscillation during the working process.

[0006] (2) CN114576039A, A needle-plug injector and injection method capable of multi-dimensional impact atomization, which solves the problem that when the propellant flow rate of the existing needle-plug injector is large, the large nozzle size affects the impact atomization of the propellant, thus affecting the combustion performance. This patent is to test whether the pressure drop meets the requirements during a certain range of flow rate adjustment, record the atomization effect after the two media are injected, and determine whether there is pressure oscillation during the working process.

[0007] Therefore, there is an urgent need for a simple, lightweight, and portable method that can test and verify the flow rate, pressure drop, and atomization effect of the injector, that is, to record the changes in pressure drop and observe the atomization effect of the injector during the flow rate adjustment process, thereby improving the testing efficiency. Summary of the Invention

[0008] To solve the above problems, the technical solution of this utility model is:

[0009] This utility model discloses a special atomization testing device for injectors, which includes a trolley, a silencer, and a testing component; the silencer and the testing component are fixed on the trolley; the testing component has two paths, namely an oxygen path component and a combustion path component;

[0010] The oxygen circuit assembly includes an oxygen circuit pressure storage tank, an oxygen circuit pressure controller, an oxygen circuit pressure gauge, an oxygen circuit flow meter, an oxygen circuit filter, an oxygen circuit safety valve, and an oxygen circuit funnel.

[0011] The oxygen pressure storage tank is fixed to the base plate of the trolley, with three interfaces at each end: upper A, upper B, and upper C, and lower A, lower B, and lower C. Lower A and lower B outlets have pipes leading out and ball valves installed for drainage. Lower C outlet has a ball valve and an oxygen filter installed via an adapter. The oxygen flow meter is directly clamped to the outer wall of the pipe. Upper A outlet has a ball valve and an oxygen funnel installed, and an oxygen pressure gauge installed via an adapter. Upper B outlet has an oxygen safety valve installed. Upper C outlet has a ball valve and an oxygen pressure controller installed via a tee, connected to a silencer, and a high-pressure resistant hose leading out for connecting to the gas source.

[0012] The gas circuit assembly includes a gas circuit pressure storage tank, a gas circuit pressure controller, a gas circuit pressure gauge, a gas circuit flow meter, a gas circuit filter, a gas circuit safety valve, and a gas circuit funnel;

[0013] The gas pressure storage tank is fixed to the base plate of the trolley, with three interfaces at each end: upper D, upper E, and upper F, and lower D, lower E, and lower F. Lower D and lower E outlets have pipes leading out and ball valves installed for drainage. Lower F outlet has a ball valve and a gas filter installed via an adapter. The gas flow meter is directly clamped to the outer wall of the pipe. Upper D outlet has a ball valve and a gas funnel installed, and a gas pressure gauge installed via an adapter. Upper E outlet has a gas safety valve installed. Upper F outlet has a ball valve and a gas pressure controller installed via a tee, connected to a silencer, and a high-pressure resistant hose leading out for connecting to the gas source.

[0014] Preferably, the test component has two or more channels, designed according to experimental requirements.

[0015] Preferably, the oxygen flow meter is a clamp-type flow meter.

[0016] Preferably, the gas flow meter is a clamp-type flow meter.

[0017] Preferably, the pipeline is a high-pressure resistant pipeline, and multiple pipeline sections are connected by compression fittings.

[0018] Preferably, the ball valve is a manual ball valve.

[0019] Beneficial effects of this invention:

[0020] (1) This invention uses deionized water as the propellant working medium, simulates the oxygen circuit and the combustion circuit, changes the pressure in front of the injector by adjusting the pressure controller, measures the flow rate of deionized water through the injector by a flow meter, records the atomization state by taking pictures, and calculates the pressure drop under the rated deionized water flow rate by measuring the relationship between the deionized water flow rate and the pressure drop of the injector. This invention enables simultaneous testing and verification of the flow rate, pressure drop and atomization effect of the injector.

[0021] (2) The present invention uses deionized water as the propellant working fluid to avoid clogging of pipelines and injectors.

[0022] (3) The reliability of the test system is ensured by the manual ball valve and the clamp flow meter. It ensures that the pressure drop meets the requirements and maintains good atomization and mixing during the flow adjustment process within a certain range, and ensures that it can work reliably without pressure oscillation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a certain type of injector for a special atomization testing device for injectors according to the present invention.

[0025] Figure 2 This is a schematic diagram of the atomization testing device of the present invention, which is a dedicated atomization testing device for injectors.

[0026] Figure 3 This invention relates to a component assembly for an atomization testing device for a dedicated injector;

[0027] Figure 4 This is a partial installation diagram of the atomization testing device for a sprayer according to the present invention. Figure 1 ;

[0028] Figure 5 This is a partial installation diagram of the atomization testing device for a sprayer according to the present invention. Figure 2 ;

[0029] Figure 6 This is a schematic diagram of a pressure storage tank for a dedicated atomization testing device for injectors according to the present invention.

[0030] In the picture:

[0031] 1 is a trolley; 1-2 is an oxygen circuit pressure tank; 1-3 is an oxygen circuit pressure controller; 1-4 is an oxygen circuit pressure gauge; 1-6 is an oxygen circuit flow meter; 1-7 is an oxygen circuit filter; 1-8 is an oxygen circuit safety valve; 1-9 is an oxygen circuit funnel; 2-2 is a fuel circuit pressure tank; 2-3 is a fuel circuit pressure controller; 2-4 is a fuel circuit pressure gauge; 2-6 is a fuel circuit flow meter; 2-7 is a fuel circuit filter; 2-8 is a fuel circuit safety valve. Valve; 2-9 is the combustion funnel; 2 is the silencer; 3 is the high-pressure resistant hose; 1-2-1 is the upper A route; 1-2-2 is the upper B route; 1-2-3 is the upper C route; 1-2-4 is the lower A route; 1-2-5 is the lower B route; 1-2-6 is the lower C route; 2-2-1 is the upper D route; 2-2-2 is the upper E route; 2-2-3 is the upper F route; 2-2-4 is the lower D route; 2-2-5 is the lower E route; 2-2-6 is the lower F route. Detailed Implementation

[0032] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0033] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0034] The specific technical solution of this invention is as follows:

[0035] A dedicated atomization testing device for injectors, such as Figure 2 and Figure 3 As shown, it includes a trolley 1, a silencer 2, and a test assembly; the silencer 2 and the test assembly are fixed on the trolley 1; the test assembly has two paths, namely an oxygen path assembly and a combustion path assembly;

[0036] like Figure 3 and Figure 4 As shown, the oxygen circuit assembly includes an oxygen circuit pressure storage tank 1-2, an oxygen circuit pressure controller 1-3, an oxygen circuit pressure gauge 1-4, an oxygen circuit flow meter 1-6, an oxygen circuit filter 1-7, an oxygen circuit safety valve 1-8, and an oxygen circuit funnel 1-9.

[0037] The oxygen pressure storage tank 1-2 is fixed to the base plate of the trolley 1. Each end has three interfaces: upper A-channel 1-2-1, upper B-channel 1-2-2, upper C-channel 1-2-3, and lower A-channel 1-2-4, lower B-channel 1-2-5, and lower C-channel 1-2-6. Lower A-channel 1-2-4 and lower B-channel 1-2-5 have pipes leading out and ball valves installed for drainage. Lower C-channel 1-2-6 has a ball valve and oxygen filter 1-7 installed via an adapter. The oxygen flow meter 1-6 is directly clamped to the outer wall of the pipe. Upper A-channel 1-2-1 has a ball valve and oxygen funnel 1-9 installed, and an oxygen pressure gauge 1-4 installed via an adapter. Upper B-channel 1-2-2 has an oxygen safety valve 1-8 installed. Upper C-channel 1-2-3 has a ball valve and oxygen pressure controller 1-3 installed via a three-way valve, connected to a silencer 2, and has a high-pressure resistant hose leading out for connecting to a gas source.

[0038] like Figure 3 and Figure 4 As shown, the gas circuit assembly includes a gas circuit pressure storage tank 2-2, a gas circuit pressure controller 2-3, a gas circuit pressure gauge 2-4, a gas circuit flow meter 2-6, a gas circuit filter 2-7, a gas circuit safety valve 2-8, and a gas circuit funnel 2-9;

[0039] The gas pressure storage tank 2-2 is fixed to the bottom plate of the trolley 1, such as... Figure 6 As shown, each end has three interfaces: upper D-channel 2-2-1, upper E-channel 2-2-2, upper F-channel 2-2-3, and lower D-channel 2-2-4, lower E-channel 2-2-5, and lower F-channel 2-2-6. Lower D-channel 2-2-4 and lower E-channel 2-2-5 have pipes leading out and ball valves installed for drainage. Lower F-channel 2-2-6 has a ball valve and a gas filter 2-7 installed via an adapter. The gas flow meter 2-6 is directly clamped to the outer wall of the pipe. Upper D-channel 2-2-1 has a ball valve and a gas funnel 2-9 installed, and a gas pressure gauge 2-4 installed via an adapter. Upper E-channel 2-2-2 has a gas safety valve 2-8 installed. Upper F-channel 2-2-3 has a ball valve and a gas pressure controller 2-3 installed via a three-way valve, connected to a silencer 2, and a high-pressure resistant hose leading out for connecting to a gas source.

[0040] Preferably, the test component has two or more channels, designed according to experimental requirements.

[0041] Preferably, the oxygen flow meters 1-6 are clamp-type flow meters.

[0042] Preferably, the gas flow meters 2-6 are clamp-type flow meters.

[0043] Preferred, such as Figure 5 As shown, the pipeline is a high-pressure resistant pipeline, and multiple pipeline sections are connected by compression fittings.

[0044] Preferably, the ball valve is a manual ball valve.

[0045] The specific operation of the dedicated atomization testing device for the injector is as follows:

[0046] A high-pressure hose is connected to a high-pressure gas cylinder. The oxygen circuit pressure controller 1-3 and the fuel circuit pressure controller 2-3 are adjusted to change the gas source pressure entering the oxygen circuit pressure storage tank 1-2 and the fuel circuit pressure storage tank 2-2. The high-pressure gas cylinder is a high-pressure nitrogen cylinder. The lower C-circuit ball valve 1-2-6 is opened. After the propellant passes through the oxygen circuit filter 1-7 and the oxygen circuit flow meter 1-6, the propellant is introduced into the oxygen circuit of the injector through a special tool. At this time, the pressure and flow rates are recorded, and a photograph is taken to record the jet atomization effect of the propellant after passing through the injector. The lower F-circuit ball valve 2-2-6 is opened. After the propellant passes through the fuel circuit filter 2-7 and the fuel circuit flow meter 2-6, the propellant is introduced into the fuel circuit of the injector through a special tool. At this time, the pressure and flow rates are recorded, and a photograph is taken to record the jet atomization effect of the propellant after passing through the injector. After the test, the lower C-circuit ball valve 1-2-6 and the lower F-circuit ball valve 2-2-6 are closed.

[0047] Preferably, the propellant is deionized water.

[0048] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention based on the above disclosure without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A special atomization testing device for an injector, comprising a trolley (1), a silencer (2), and a testing assembly, wherein the silencer (2) and the testing assembly are fixed on the trolley (1), characterized in that, The test assembly has two paths: an oxygen path assembly and a combustion path assembly. The oxygen circuit assembly includes an oxygen circuit pressure storage tank (1-2), an oxygen circuit pressure controller (1-3), an oxygen circuit pressure gauge (1-4), an oxygen circuit flow meter (1-6), an oxygen circuit filter (1-7), an oxygen circuit safety valve (1-8), and an oxygen circuit funnel (1-9). The oxygen pressure storage tank (1-2) is fixed to the base plate of the trolley (1), with three interfaces at the upper and lower ends respectively: upper A line (1-2-1), upper B line (1-2-2), upper C line (1-2-3) and lower A line (1-2-4), lower B line (1-2-5), and lower C line (1-2-6); lower A line (1-2-4) and lower B line (1-2-5) have pipelines led out and ball valves installed for drainage; lower C line (1-2-6) has ball valves installed through adapters and Oxygen filter (1-7); the oxygen flow meter (1-6) is directly clamped to the outer wall of the pipeline; the upper A line (1-2-1) is equipped with a ball valve and an oxygen funnel (1-9), and an oxygen pressure gauge (1-4) is installed through an adapter; the upper B line (1-2-2) is equipped with an oxygen safety valve (1-8); the upper C line (1-2-3) is equipped with a ball valve and an oxygen pressure controller (1-3) through a three-way valve, connected to a silencer (2), and a high-pressure resistant hose is led out for connecting to a gas source; The gas circuit assembly includes a gas circuit pressure storage tank (2-2), a gas circuit pressure controller (2-3), a gas circuit pressure gauge (2-4), a gas circuit flow meter (2-6), a gas circuit filter (2-7), a gas circuit safety valve (2-8), and a gas circuit funnel (2-9); The gas pressure storage tank (2-2) is fixed to the base plate of the trolley (1). Each end has three interfaces: upper D-channel (2-2-1), upper E-channel (2-2-2), upper F-channel (2-2-3), and lower D-channel (2-2-4), lower E-channel (2-2-5), and lower F-channel (2-2-6). Lower D-channel (2-2-4) and lower E-channel (2-2-5) have pipes leading out and ball valves installed for drainage. Lower F-channel (2-2-6) has a ball valve installed via an adapter. The gas filter (2-7) is installed in the upper D-channel (2-2-1), and the gas flow meter (2-6) is directly clamped to the outer wall of the pipeline. The upper D-channel (2-2-1) is equipped with a ball valve and a gas funnel (2-9), and a gas pressure gauge (2-4) is installed through an adapter. The upper E-channel (2-2-2) is equipped with a gas safety valve (2-8). The upper F-channel (2-2-3) is equipped with a ball valve and a gas pressure controller (2-3) through a three-way valve, connected to the silencer (2), and a high-pressure resistant hose is led out for connecting to the gas source.

2. The atomization testing device for a sprayer as described in claim 1, characterized in that, The test components are 2-channel or more, designed according to experimental requirements.

3. The atomization testing device for a sprayer as described in claim 1, characterized in that, The oxygen flow meters (1-6) are clamp-type flow meters.

4. The atomization testing device for a sprayer as described in claim 1, characterized in that, The gas flow meter (2-6) is a clamp-type flow meter.

5. The atomization testing device for a sprayer as described in claim 1, characterized in that, The pipeline is a high-pressure resistant pipeline, and multiple sections of the pipeline are connected by compression fittings.

6. The atomization testing device for a sprayer as described in claim 1, characterized in that, The ball valve is a manual ball valve.

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