Integrated test equipment for fuel atomization component of aviation power device

Abstract

The utility model relates to integrated test equipment for a fuel oil atomization component of an aviation power device, which comprises a rack, the top end of the rack is provided with an opening, the opening is connected with a transparent cover, a liquid collecting tank is distributed in the rack, and the transparent cover extends into the liquid collecting tank; an opening is formed in the top end of the transparent cover and is provided with a dial for fixing a test piece, a fan-shaped piece is arranged in the transparent cover, a plurality of fuel oil collecting grooves which are circumferentially distributed around the circle center of the fan-shaped piece are formed in the fan-shaped piece, each fuel oil collecting groove is connected with a first connecting pipe, and the first connecting pipes are correspondingly connected with liquid collecting pipes; the liquid collecting pipes are connected with second connecting pipes, and the tail ends of the second connecting pipes stretch into the transparent cover. According to the utility model, the fuel oil flow, the fuel oil atomization angle and the fuel oil atomization non-uniformity of the fuel oil atomization component are measured at the same time for test measurement.

Description

Technical Field

[0001] The utility model relates to the field of aircraft component testing, in particular to integrated testing equipment for fuel atomization components of aviation power plants. Background Art

[0002] Aviation power plants often use atomizers to atomize the fuel so that the fuel can be fully burned in the combustion chamber, fully utilizing the chemical energy of the fuel and improving the overall economy of the aviation power plant.

[0003] In the past, the fuel atomization components of aviation power units mostly used nozzles of various structural forms. When the high-pressure fuel from the fuel pump passes through the nozzle, the continuous fuel will be atomized and dispersed by the nozzle. The atomized and dispersed fuel burns efficiently in the combustion chamber, converting the chemical energy of the fuel into mechanical energy output to drive the relevant loads to operate. After the entire aviation power unit has been used for a period of time, it is necessary to inspect / overhaul the product in accordance with the relevant use and maintenance regulations of aviation products. The technical performance of the atomization device will become one of the important indicators that need to be verified through tests. These indicators include: 1. The fuel flow rate of the atomization device under a given fuel pressure condition, referred to as the fuel flow test; 2. Whether the fuel atomization angle of the atomization device under a given fuel pressure condition is qualified, referred to as the fuel atomization angle test.

[0004] However, with the continuous updating and iteration of technology and the increasing attention paid by aircraft operators to economy, the economy of aviation power units has become one of the key points of competition among aircraft power unit manufacturers. This has led to the development of aviation power unit fuel atomization components towards precision manufacturing, refined inspection, and meticulous operation and maintenance. More and more new aircraft power unit fuel nozzles have added fuel atomization unevenness tests on the basis of fuel flow tests and fuel atomization angle tests. Some fuel atomization unevenness tests even require multiple tests to take the average value, which makes the original fuel atomization component test equipment unable to meet the test requirements of the new aircraft fuel atomization components, and it is necessary to develop universal test equipment according to the latest test requirements. Summary of the invention

[0005] In order to solve the above technical problems, the utility model proposes an integrated test equipment for fuel atomization components of aviation power plant. The technical problems to be solved by the utility model are achieved by the following technical solutions:

[0006] An integrated test device for fuel atomization components of an aviation power plant comprises a frame, the top of the frame is open and a transparent cover is connected to the opening, a liquid collecting tank is distributed in the frame, and the bottom of the transparent cover extends into the liquid collecting tank;

[0007] The transparent cover has an opening at the top and is provided with a dial for fixing the test piece. A sector-shaped part is provided inside the transparent cover. A plurality of fuel collecting grooves are provided inside the sector-shaped part and are distributed in a circle around the center of the sector-shaped part. Each fuel collecting groove is connected to a No. 1 connecting pipe, and the No. 1 connecting pipe is correspondingly connected to a liquid collecting pipe, and the liquid collecting pipes are all connected to a No. 2 connecting pipe with the end extending into the transparent cover.

[0008] A three-way valve is provided between the liquid collecting pipe and the second connecting pipe.

[0009] The fuel collecting tank is provided with a connecting nozzle, and the connecting nozzle is communicated with a No. 1 connecting pipe.

[0010] The scale plate is rotatably mounted on the transparent cover.

[0011] The liquid collecting tank and the liquid collecting pipe are both made of transparent material and have scales.

[0012] The three-way valve comprises a first interface connected to the liquid collecting pipe, a second interface connected to the second connecting pipe, and a third interface.

[0013] The integrated test method of the fuel atomization components of an aviation power plant comprises the following steps:

[0014] Step 1: Assemble the component to be tested and the adapter and install them on the dial, adjust the nozzle position of the component to be tested to the center of the middle section in the thickness direction of the fan-shaped part, and connect the tail end of the component to be tested to the adjustable fuel pressure station;

[0015] Step 2: Close the No. 2 and No. 3 ports of the three-way valve and set the parameters of the adjustable fuel pressure station to the corresponding test requirements;

[0016] Step 3: Open the pressure station for testing and keep it running, then stop the test and record the test duration;

[0017] Step 4: Record the situation of fuel collected by the fuel collecting grooves in the sector, including recording the angle distribution range of the fuel collecting grooves with fuel on the sector, the distribution angle of the fuel collecting grooves that collect the most fuel on the sector and the reading of the corresponding collecting pipe, and the distribution angle of the fuel collecting grooves that collect the least fuel on the sector and the reading of the corresponding collecting pipe;

[0018] Step 5: Open interface No. 2 and close interface No. 3 to allow the fuel in the collecting pipe to flow into the collecting tank. Collect and weigh the fuel in the collecting tank and record the weight result.

[0019] Step 6: Draw test results based on the data recorded in steps 4 and 5.

[0020] The test types include fuel flow test, fuel atomization angle test, and fuel atomization unevenness test.

[0021] The fuel atomization angle test result is determined by reading the angle distribution range of the fuel collecting groove corresponding to the collecting pipe where the fuel is collected on the fan-shaped member recorded in the fourth step;

[0022] The fuel atomization unevenness test is calculated by the manifold readings corresponding to the fuel collection tanks that collect the most and the least fuel recorded in the fourth step. The calculation formula is (maximum manifold reading - minimum manifold reading) / maximum manifold reading;

[0023] The fuel flow test is calculated by the fifth record of the liquid collecting tank weighing structure;

[0024] The calculation method is: the volume flow rate of the component to be tested is obtained by the ratio of the volume indication on the liquid collecting tank to the test time; the mass flow rate of the component to be tested is obtained by weighing the net weight of the liquid collecting tank and the ratio of the net weight to the test time.

[0025] The beneficial effects of the utility model are as follows: the utility model obtains the fuel flow rate, fuel atomization angle and fuel atomization unevenness test measurement of the fuel atomization component by simultaneously measuring;

[0026] The dial can be rotated to measure the fuel atomization unevenness at different angles, which can meet the precise requirements of multi-point measurement of some atomization components and the average value of fuel atomization unevenness;

[0027] The utility model can calculate the volume reading of the liquid collecting tank and can also weigh and calculate the fuel collected in the liquid collecting tank, thereby realizing a redundant design and increasing the degree of freedom of operation for the tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Figure 1 This is a schematic diagram of the test equipment structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the fan-shaped component structure of the utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the three-way valve of the utility model.

[0032] As shown in the figure: 1. frame; 2. transparent cover; 3. liquid collecting tank; 4. dial; 5. fan-shaped piece; 6. fuel collecting tank; 7. No. 1 connecting pipe; 8. liquid collecting pipe; 9. No. 2 connecting pipe; 10. three-way valve; 11. connecting nozzle; 101. No. 1 interface; 102. No. 2 interface; 103. No. 3 interface. 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 described more clearly and completely below in conjunction with the drawings in the embodiments. Of course, the described embodiments are only a part of the present invention but not all of it. Based on this embodiment, other embodiments obtained by those skilled in the art without creative labor are all within the protection scope of the present invention.

[0034] like Figures 1 to 3 As shown, the integrated test equipment for fuel atomization components of an aviation power plant includes a frame 1, the top of the frame 1 is open and a transparent cover 2 is connected to the opening, a liquid collecting tank 3 is distributed in the frame 1, the bottom of the transparent cover 2 extends into the liquid collecting tank 3, and the bottom of the transparent cover 2 is conical, so that the fuel is collected and enters the liquid collecting tank 3;

[0035] The transparent cover 2 has an opening at the top and is provided with a dial 4 for fixing the test piece. A sector-shaped part 5 is provided inside the transparent cover 2. A plurality of fuel collecting grooves 6 are provided inside the sector-shaped part 5 and are distributed in a circle around the center of the sector-shaped part 5. Each fuel collecting groove 6 is connected to a No. 1 connecting pipe 7. The No. 1 connecting pipe 7 is correspondingly connected to a liquid collecting pipe 8. The liquid collecting pipes 8 are connected to a No. 2 connecting pipe 9 with the end extending into the transparent cover 2.

[0036] A three-way valve 10 is provided between the liquid collecting pipe 8 and the second connecting pipe 9 .

[0037] The fuel collecting tank 6 is provided with a connecting nozzle 11 , and the connecting nozzle 11 is connected to the No. 1 connecting pipe 7 .

[0038] The scale plate 4 is rotatably mounted on the transparent cover 2. The component to be tested is rotated, and the relative posture angle of the component to be tested relative to the sector 5 is adjusted. Multiple tests are performed to obtain the average of the final test results. At the same time, the precise requirements of multi-point measurement of some atomization components and averaging of fuel atomization unevenness can be met.

[0039] The liquid collecting tank 3 and the liquid collecting pipe 8 are both made of transparent material and have scales; the fuel volume in the liquid collecting tank 3 and the liquid collecting pipe 8 can be read through the scales.

[0040] The three-way valve 10 includes a No. 1 interface 101 connected to the collecting pipe 8, a No. 2 interface 102 connected to the No. 2 connecting pipe 9, and a No. 3 interface 103. The No. 3 interface 103 can be used for equipment cleaning or as a reserved port for collecting the test fuel in the collecting pipe using an external container.

[0041] The integrated test method of the fuel atomization components of the aviation power plant comprises the following steps:

[0042] Step 1: Assemble the component to be tested and the adapter and install them on the dial 4, adjust the nozzle position of the component to be tested to the center of the middle section in the thickness direction of the sector 5, and connect the tail end of the component to be tested to the adjustable fuel pressure station;

[0043] Step 2: Close the No. 2 port 102 and the No. 3 port 103 of the three-way valve 10, and set the parameters of the adjustable fuel pressure station to the corresponding test requirements;

[0044] Step 3: Open the pressure station for testing and keep it running, then stop the test and record the test duration;

[0045] Step 4: Record the situation of the fuel collected by the fuel collecting groove 6 in the sector 5, including recording the angle distribution range of the fuel collecting groove 6 with fuel on the sector 5, the distribution angle of the fuel collecting groove 6 collecting the most fuel on the sector and the reading of the corresponding collecting pipe 8, and the distribution angle of the fuel collecting groove 6 collecting the least fuel on the sector 5 and the reading of the corresponding collecting pipe 8;

[0046] Step 5: Open the No. 2 interface 102 and close the No. 3 interface 103, so that the fuel in the collecting pipe 8 flows into the collecting tank 3, collect and weigh the fuel in the collecting tank 3, and record the weight result.

[0047] Step 6: Draw test results based on the data recorded in steps 4 and 5.

[0048] The test types include fuel flow test, fuel atomization angle test, and fuel atomization unevenness test.

[0049] The fuel atomization angle test alone includes the following steps:

[0050] Step 1: Assemble the component to be tested and the adapter and install them on the dial 4, adjust the nozzle position of the component to be tested to the center of the middle section in the thickness direction of the sector 5, and connect the tail end of the component to be tested to the adjustable fuel pressure station;

[0051] Step 2: Adjust the three-way valve 10 so that both the No. 2 interface 102 and the No. 3 interface 103 are closed, and set the parameters of the adjustable fuel pressure station;

[0052] Step 3: Turn on the pressure station, and a part of the fuel atomized by the tested component enters the sector 5 through the fuel collecting groove 6 and the connecting nozzle 11 into the No. 1 connecting pipe 7, and enters the collecting pipe 8 through the No. 1 connecting pipe 7. The other part enters the transparent cover 2 and flows into the collecting tank 3. Check the angle distribution of the fuel collecting groove 6 corresponding to the collecting pipe 8 where the fuel is collected on the sector 5, and obtain the test results according to the angle distribution;

[0053] Step 4: Open the No. 2 interface 102 and close the No. 3 interface 103, so that the fuel in the collecting pipe 8 flows into the collecting tank 3. The experiment is finished.

[0054] The single fuel atomization unevenness test includes the following steps:

[0055] Step 1: Assemble the component to be tested and the adapter and install them on the dial 4, adjust the nozzle position of the component to be tested to the center of the middle section in the thickness direction of the sector 5, and connect the tail end of the component to be tested to the adjustable fuel pressure station;

[0056] Step 2: Adjust the three-way valve 10 so that both the No. 2 interface 102 and the No. 3 interface 103 are closed, and set the parameters of the adjustable fuel pressure station;

[0057] Step 3: Turn on the pressure station, and a part of the fuel atomized by the tested component enters the sector 5 through the fuel collecting tank 6 and the connecting nozzle 11, and enters the No. 1 connecting pipe 7, and enters the collecting pipe 8 through the No. 1 connecting pipe 7. The other part enters the transparent cover 2 and flows into the collecting tank 3. The readings of the collecting pipe 8 where the fuel is collected are recorded, and the maximum and minimum readings are found. The test results are calculated using the (maximum value - minimum value) / maximum value formula;

[0058] Step 4: Open the No. 2 interface 102 and close the No. 3 interface 103, so that the fuel in the collecting pipe 8 flows into the collecting tank 3, and the test is completed.

[0059] The fuel flow test alone consists of the following steps:

[0060] Step 1: Assemble the component to be tested and the adapter and install them on the dial 4, adjust the nozzle position of the component to be tested to the center of the middle section in the thickness direction of the sector 5, and connect the tail end of the component to be tested to the adjustable fuel pressure station;

[0061] Step 2: Adjust the three-way valve 10 so that the second interface 102 is open and the third interface 103 is closed, and set the parameters of the adjustable fuel pressure station;

[0062] Step 3: Open the pressure station, a part of the fuel enters the fan-shaped part 5, passes through the fuel collecting tank 6 and the connecting nozzle 11, enters the No. 1 connecting pipe 7, enters the liquid collecting pipe 8 through the No. 1 connecting pipe 7, and then flows out through the No. 2 interface 102 of the three-way valve 10, enters the No. 2 connecting pipe 9, and then enters the transparent cover 2, enters the liquid collecting tank 3 through the transparent cover 2, and the other part directly enters the liquid collecting tank 3 through the transparent cover 2;

[0063] Step 4: Weigh the fuel collected in the liquid collecting tank 3, and obtain the mass flow rate of the component to be tested by the ratio of the net weight to the test time, and obtain the volume flow rate of the component to be tested by the ratio of the volume indication on the liquid collecting tank 3 to the test time.

[0064] Step 5: Obtain test results based on the recorded mass flow and volume flow.

[0065] The fuel atomization unevenness can also be tested by the following steps:

[0066] Step 1: Assemble the component to be tested and the adapter and install them on the dial 4, adjust the nozzle position of the component to be tested to the center of the middle section in the thickness direction of the sector 5, and connect the tail end of the component to be tested to the adjustable fuel pressure station;

[0067] Step 2: Adjust the three-way valve 10 so that both the No. 2 interface 102 and the No. 3 interface 103 are closed, and set the parameters of the adjustable fuel pressure station;

[0068] Step 3: Open the pressure station, and a part of the fuel atomized by the tested component enters the fan-shaped part 5, passes through the fuel collecting tank 6, the connecting nozzle 11, enters the No. 1 connecting pipe 7, and enters the collecting pipe 8 through the No. 1 connecting pipe 7.

[0069] Step 4: record the readings of the collecting pipe 8 that collects the fuel, find out the maximum and minimum readings, adjust the three-way valve 10 connected to the collecting pipe 8 with the maximum and minimum readings, close the No. 2 interface 102 and open the No. 3 interface 103, collect the fuel in the corresponding collecting pipe 8 and weigh it, obtain the maximum and minimum net weight values ​​of the fuel, and use (maximum value-minimum value) / maximum value to obtain the test result.

[0070] Step 5: Open the No. 2 interface 102 and close the No. 3 interface 103, so that the fuel in the collecting pipe 8 flows into the collecting tank 3. The experiment is finished.

[0071] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. Aviation power plant fuel atomization component integrated test equipment, characterized by: It comprises a frame (1), the top of the frame (1) is open and a transparent cover (2) is connected to the opening, a liquid collecting tank (3) is distributed inside the frame (1), and the bottom of the transparent cover (2) extends into the liquid collecting tank (3); The transparent cover (2) has an open top and is provided with a dial (4) for fixing a test piece. A sector-shaped part (5) is provided inside the transparent cover (2). A plurality of fuel collecting grooves (6) are provided inside the sector-shaped part (5) and are distributed in a circle around the center of the sector-shaped part (5). Each fuel collecting groove (6) is connected to a No. 1 connecting pipe (7). The No. 1 connecting pipe (7) is correspondingly connected to a liquid collecting pipe (8). The liquid collecting pipes (8) are connected to a No. 2 connecting pipe (9) whose ends extend into the transparent cover (2).

2. The integrated test equipment for fuel atomization components of aviation power plant according to claim 1, characterized in that: A three-way valve (10) is provided between the liquid collecting pipe (8) and the second connecting pipe (9).

3. The integrated test equipment for fuel atomization components of aviation power plant according to claim 1, characterized in that: The fuel collecting tank (6) is provided with a connecting nozzle (11), and the connecting nozzle (11) is connected to a No. 1 connecting pipe (7).

4. The integrated test equipment for fuel atomization components of aviation power plant according to claim 1, characterized in that: The scale plate (4) is rotatably mounted on the transparent cover (2).

5. The integrated test equipment for fuel atomization components of aviation power plant according to claim 1, characterized in that: The liquid collecting tank (3) and the liquid collecting pipe (8) are both made of transparent material and have scales.

6. The integrated test equipment for fuel atomization components of aviation power plant according to claim 2, characterized in that: The three-way valve (10) comprises a first interface (101) connected to the liquid collecting pipe (8), a second interface (102) connected to the second connecting pipe (9), and a third interface (103).

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