CN221257081U - Ejector pump performance testing device - Google Patents
Ejector pump performance testing device Download PDFInfo
- Publication number
- CN221257081U CN221257081U CN202322875244.1U CN202322875244U CN221257081U CN 221257081 U CN221257081 U CN 221257081U CN 202322875244 U CN202322875244 U CN 202322875244U CN 221257081 U CN221257081 U CN 221257081U
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- Prior art keywords
- oil tank
- ejector pump
- pump
- pipeline
- testing device
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- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 239000002828 fuel tank Substances 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000011056 performance test Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 abstract description 13
- 230000010354 integration Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 29
- 238000013461 design Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
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- Testing Of Engines (AREA)
Abstract
The utility model relates to the field of aircraft fuel systems, and particularly discloses an ejector pump performance testing device which comprises a main fuel tank and an auxiliary fuel tank; the to-be-tested ejector pump is arranged at the upper end position in the main oil tank, a first inlet of the ejector pump is communicated with the bottom of the auxiliary oil tank through a pipeline, and a second inlet of the ejector pump extends into the lower part of the liquid level of the main oil tank through a pipeline; the outlet of the ejector pump leads the mixed liquid into the auxiliary oil tank through a pipeline. The utility model is a testing device with simple structure and high integration level, which can simulate and test the performance of the ejector pump at different heights and fuel temperatures.
Description
Technical Field
The utility model relates to the field of aircraft fuel systems, in particular to a device which has a simple structure and high integration level and can simulate and test the performance of an ejector pump under different flying heights and fuel temperatures.
Background
Modern aircraft fuel systems often employ open fuel tanks, the tank pressure varying with aircraft flight altitude. Among the already disclosed patents, patent CN108194342a discloses a jet pump testing device and performance testing method, which are mainly cited in jet pump performance test in an automobile fuel tank; in an aircraft fuel system, an ejector pump is generally arranged between a main fuel tank and an auxiliary fuel tank so as to ensure normal supply of fuel; however, in the high-altitude environment, the main and auxiliary fuel tanks usually have negative pressure, and the negative pressure is continuously changed according to the different flying heights, so that the injection performance of the injection pump in the high-altitude environment is required to be tested in the ground environment.
Disclosure of Invention
The purpose of the utility model is that: the ejector pump performance testing device is provided for testing the ejector performance of the ejector pump in the high-altitude environment of the ejector pump in the ground environment.
The technical scheme is as follows: the ejector pump performance testing device comprises a main oil tank and an auxiliary oil tank; the to-be-tested ejector pump is arranged at the upper end position in the main oil tank, a first inlet of the ejector pump is communicated with the bottom of the auxiliary oil tank through a pipeline, and a second inlet of the ejector pump extends into the lower part of the liquid level of the main oil tank through a pipeline; the outlet of the ejector pump leads the mixed liquid into the auxiliary oil tank through a pipeline.
Furthermore, the upper ends of the main oil tank and the auxiliary oil tank are connected with a vacuum pump through pipelines, and vacuum valves are arranged on the pipelines.
Further, a heater is arranged in the main oil tank.
Further, a mixing flowmeter and an outlet valve are arranged on the injection pump outlet pipeline to be tested.
Furthermore, the upper sections of the main oil tank and the auxiliary oil tank are respectively provided with a pressure gauge and a thermometer.
Furthermore, the bottoms of the main oil tank and the auxiliary oil tank are communicated through a pipeline, and a transmission pump and a cut-off valve are arranged on the pipeline.
Further, a movable flow control valve and a movable flow meter are also arranged on the first inlet pipeline of the ejector pump to be tested.
The utility model has the technical effects that:
The utility model provides a testing device with simple structure and high integration level, which can simulate and test the performance of the ejector pump at different heights and fuel temperatures.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings required to be used in the embodiments of the present invention, and it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a jet pump performance test apparatus according to an embodiment of the present invention.
The system comprises a dynamic flow pressure gauge 1, a main oil tank pressure gauge 2, an ejector pump 3, a mixed flow pressure gauge 4, a mixed flow flowmeter 5, an outlet valve 6, a thermometer 7, a vacuum valve 8, a vacuum pump 9, an auxiliary oil tank pressure gauge 10, an auxiliary oil tank 11, a warmer 12, a transfer pump 13, a stop valve 14, a stop valve 15, a main oil tank 16, a power pump 17, a dynamic flow flowmeter 18, a dynamic flow control valve 19 and a thermometer 20.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any inventive effort are intended to fall within the scope of the present invention.
Features and exemplary embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention. The present invention is in no way limited to any particular arrangement and method set forth below, but rather covers any adaptations, alternatives, and modifications of structure, method, and device without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other, and the embodiments may be referred to and cited with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
The invention provides a device which has a simple structure and high integration level and can simulate and test the performance of the ejector pump under different flying heights and fuel temperatures.
FIG. 1 is a schematic diagram of a jet pump performance test apparatus according to an embodiment of the present invention.
Referring to fig. 1, the test device is composed of a dynamic flow pressure gauge 1, a main tank pressure gauge 2, an ejector pump 3, a mixed flow pressure gauge 4, a mixed flow meter 5, an outlet valve 6, a thermometer 7, a vacuum valve 8, a vacuum pump 9, a secondary tank pressure gauge 10, a secondary tank 11, a warmer 12, a transfer pump 13, a stop valve 14, a stop valve 15, a main tank 16, a power pump 17, a dynamic flow meter 18, a dynamic flow control valve 19, and a thermometer 20.
When the device is operated, fuel in the auxiliary fuel tank 11 is transferred to the main fuel tank 16 through the transfer pump 13, the power pump 17 is turned on, the flow pressure is changed by changing the opening of the flow control valve 19, the flow rate is read through the flowmeter 18, the mixed flow pressure is changed by changing the opening of the outlet valve 6, the fuel tank pressures at different heights are simulated through the vacuum pump 9 to obtain different vacuum degrees, and finally the mixed flow rate is read through the flowmeter 5.
When the stop valve 14 and the stop valve 15 are closed, the main oil tank 16 is not communicated with the auxiliary oil tank 11, the fuel in the main oil tank 16 is consumed, and when the readings of the flow meter 18 and the mixed flow meter 5 are equal, the liquid level of the main oil tank 16 and the suction distance S of the jet pump are measured to obtain the maximum oil absorption capacity of the jet pump.
When the warmer 12 is in operation, the main fuel tank can be warmed, the thermometer 20 measures the fuel temperature of the main fuel tank 16, and the testing device can measure the ejector pump performance under different temperatures and vacuum degrees.
The innovative design technical point of the utility model is as follows:
the core innovation design technology points are as follows: the test device has the function of simulating and testing the performance of the ejector pump at different heights and fuel temperatures.
Minor innovative design technical point 1: the power pump is turned on, inlet and outlet pressures are changed through the valve, and the main oil tank is vacuumized through the vacuum pump so as to simulate the atmospheric environment of the oil tank at different heights.
Secondary innovative design technology point 2: after the stop valve is closed, the testing device continues to operate, and when the power flow rate is equal to the mixed flow rate, the height of the liquid level of the main oil tank from the bottom of the ejector pump is measured to obtain the maximum oil absorption capacity of the ejector pump.
Minor innovative design technical point 3: the fuel oil can be heated through the auxiliary fuel tank so as to test the performance of the ejector pump at different temperatures.
Secondary innovative design technical point 4: an infusion pump is arranged between the main oil tank and the auxiliary oil tank for quickly balancing the heights of the two oil tanks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered in the scope of the present invention.
Claims (6)
1. The ejector pump performance testing device is characterized by comprising a main oil tank and an auxiliary oil tank; the to-be-tested ejector pump is arranged at the upper end position in the main oil tank, a first inlet of the ejector pump is communicated with the bottom of the auxiliary oil tank through a pipeline, and a second inlet of the ejector pump extends into the lower part of the liquid level of the main oil tank through a pipeline; the outlet of the ejector pump leads the mixed liquid into the auxiliary oil tank through a pipeline;
The upper ends of the main oil tank and the auxiliary oil tank are connected with a vacuum pump through pipelines, and vacuum valves are arranged on the pipelines.
2. The ejector pump performance testing device according to claim 1, wherein a heater is arranged inside the main oil tank.
3. The ejector pump performance testing device according to claim 1, wherein the upper sections of the main oil tank and the auxiliary oil tank are respectively provided with a pressure gauge and a thermometer.
4. A jet pump performance test device according to claim 3, wherein the bottoms of the main and auxiliary fuel tanks are connected by a pipeline, and a transfer pump and a stop valve are arranged on the pipeline.
5. A jet pump performance test apparatus as claimed in claim 1, wherein the jet pump to be tested is provided with a mixing flow meter and outlet valve on the pipe.
6. A jet pump performance test apparatus as set forth in claim 5, wherein the first inlet line of the jet pump to be tested is further provided with a movable flow control valve and a movable flow meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322875244.1U CN221257081U (en) | 2023-10-25 | 2023-10-25 | Ejector pump performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322875244.1U CN221257081U (en) | 2023-10-25 | 2023-10-25 | Ejector pump performance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221257081U true CN221257081U (en) | 2024-07-02 |
Family
ID=91663590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322875244.1U Active CN221257081U (en) | 2023-10-25 | 2023-10-25 | Ejector pump performance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221257081U (en) |
-
2023
- 2023-10-25 CN CN202322875244.1U patent/CN221257081U/en active Active
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