CN210533692U - Test system for fuel nozzle performance test - Google Patents
Test system for fuel nozzle performance test Download PDFInfo
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- CN210533692U CN210533692U CN201921827953.XU CN201921827953U CN210533692U CN 210533692 U CN210533692 U CN 210533692U CN 201921827953 U CN201921827953 U CN 201921827953U CN 210533692 U CN210533692 U CN 210533692U
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Abstract
The utility model relates to a test system for fuel nozzle capability test, including main fuel feed system, assistance fuel feed system, highly-compressed air feed system, high-pressure nitrogen gas feed system, monitoring display system, experimental section system, the oil tank of assisting in fuel feed system and the main fuel feed system links to each other, assistance fuel feed system and main fuel feed system are connected to experimental section system, highly-compressed air feed system and high-pressure nitrogen gas feed system all are connected to experimental section system, monitoring display system links to each other with main fuel feed system, assistance fuel feed system, highly-compressed air feed system, high-pressure nitrogen gas feed system and experimental section system. Utility model can provide manifold test mode, improve accurate, the effectual test of index, then can be more true, accurate verification fuel nozzle's performance to very big improvement combustion chamber performance.
Description
Technical Field
The utility model belongs to the technical field of gas turbine, especially, relate to a test system for fuel nozzle capability test.
Background
At present, with the improvement of the environmental protection requirement, the emission requirement of a ground gas turbine and an aircraft engine is gradually improved, a combustion chamber is used as a core component of a gas turbine, the overall performance of gas is directly influenced by the indexes such as the operating combustion efficiency, the stable working range, the outlet temperature distribution, the emission performance and the like of the combustion chamber, and the working performance of a core component fuel nozzle of the combustion chamber directly determines the overall performance of the combustion chamber. In order to improve the overall performance of the combustion chamber, various performances of the fuel nozzle need to be tested in detail, and the current domestic fuel nozzle test system is difficult to realize high-precision multifunctional tests, for example, special tests such as tests of fuel spray opening angle, spray radial distribution, circumferential distribution, nozzle pressure resistance, limited nozzle area and the like can be realized in one set of test system, and stable fuel pressure, temperature and flow control are provided. If the accurate and effective test on multiple indexes of the fuel nozzle can be realized, the performance of the fuel nozzle can be verified more truly and accurately, so that the performance of the combustion chamber is greatly improved, and the overall performance of the whole ground combustion engine or aeroengine is promoted.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a test system for fuel nozzle capability test.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a test system for fuel nozzle capability test, includes main fuel feed system, auxiliary fuel feed system, high-pressure air feed system, high-pressure nitrogen gas feed system, control display system, experimental section system, the oil tank in the main fuel feed system links to each other with auxiliary fuel feed system, auxiliary fuel feed system and main fuel feed system are connected to experimental section system, high-pressure air feed system and high-pressure nitrogen gas feed system all are connected to experimental section system, control display system links to each other with main fuel feed system, auxiliary fuel feed system, high-pressure air feed system, high-pressure nitrogen gas feed system and experimental section system.
Preferably, the main fuel supply system comprises a fuel tank, the output end of the fuel tank is connected with the input end of a first shut-off valve, the output end of the first shut-off valve is connected with the input end of a first oil filter, the output end of the first oil filter is connected with the input end of a high-pressure oil pump, the output end of the high-pressure oil pump is connected with the input end of a first pressure reducing valve, the output end of the first pressure reducing valve is connected with the input end of an energy accumulator group, the output end of the energy accumulator group is connected with the input end of an electric heater, the output end of the electric heater is connected with the input end of a heat exchanger, the output end of the heat exchanger is connected with the input end of a high-range flow meter, the output end of the high-range flow meter is connected with the input end of a low-range flow meter shut-off valve, and, and the output end of the low-range flowmeter is connected with the input end of the test section system.
Preferably, the test system for testing the performance of the fuel nozzle is characterized in that the input end of the heat exchanger is connected with the output end of the water pump through a water quantity regulating valve, and the output end of the heat exchanger is communicated with a drainage pipeline.
Preferably, the test system for testing the performance of the fuel nozzle comprises an auxiliary fuel supply system and a fuel pump, wherein the auxiliary fuel supply system comprises a second shutoff valve, the input end of the second shutoff valve is connected with the auxiliary output end of the fuel tank, the output end of the second shutoff valve is connected with the input end of a second oil filter, the output end of the second oil filter is connected with the input end of the fuel pump, the output end of the fuel pump is connected with the input end of a second pressure reducing valve, and the output end of the second pressure reducing valve is connected with the input end of a test section system through an auxiliary fuel supply flowmeter.
Preferably, the high-pressure air supply system comprises a high-pressure air compressor, an output end of the high-pressure air compressor is connected with an input end of a third shut-off valve, an output end of the third shut-off valve is connected with an input end of a dehumidifier, an output end of the dehumidifier is connected with an input end of a surge tank, an output end of the surge tank is connected with an input end of an air filter, an output end of the air filter is connected with an input end of a third pressure reducing valve, an output end of the third pressure reducing valve is connected with input ends of a sixth shut-off valve, a seventh shut-off valve and an eighth shut-off valve, wherein an output end of the seventh shut-off valve is connected with an input end of a first gas flowmeter, an output end of the first gas flowmeter is connected with an input end of a test section system, and an output end of the eighth shut-off valve is connected with the test system, and the output end of the sixth shut-off valve is connected with the input end of the oil pump.
Preferably, the high-pressure nitrogen supply system comprises a nitrogen cylinder group, the output end of the nitrogen cylinder group is connected with the input end of a fifth reducing valve, the output end of the fifth reducing valve is connected with the input end of a fourth shutoff valve, the output end of the fourth shutoff valve is connected with the input end of a second gas flowmeter, the output end of the second gas flowmeter is connected into the test section system, the output end of the fifth reducing valve is further connected with the input end of the fifth shutoff valve, and the output end of the fifth shutoff valve and the output end of an eighth shutoff valve are connected into the test section system.
Preferably, the monitoring display system comprises a data acquisition facility device, a data acquisition and analysis device, a control device and a computer, wherein the data acquisition facility device is communicated to the main fuel supply system, the auxiliary fuel supply system, the high-pressure air supply system, the high-pressure nitrogen supply system and the test section system, the acquisition end of the data acquisition facility device is connected with the receiving end of the data acquisition and analysis device, the controlled end of the data acquisition facility device is connected with the control end of the control device, and the control device and the data acquisition and analysis device are connected to the computer.
Preferably, the test system for the fuel nozzle performance test comprises an open test area, an optical test area and a circumferential test area, wherein the input end of the open test area is connected with the output ends of an auxiliary fuel supply system, a high-pressure air supply system and a high-pressure nitrogen supply system, the output end of the open test area is connected with the input end of a first oil collecting pad, the input ends of the optical test area and the circumferential test area are respectively connected with the output end of a main fuel supply system through a ninth shut-off valve and a tenth shut-off valve, the output ends of the optical test area and the circumferential test area are respectively connected with the input ends of a second oil collecting pad and a third oil collecting pad, the output ends of the first oil collecting pad, the second oil collecting pad and the third oil collecting pad are commonly connected to an oil collecting tank, and the output end of the oil collecting tank is connected with the input end of a return oil pump through a third oil filter, and the output end of the oil return pump is connected with the oil return end of the oil tank.
Preferably, in the test system for the performance test of the fuel nozzle, the air inlet ends of the first oil collection pad, the second oil collection pad and the third oil collection pad are connected with the output end of a high-pressure air supply system or a high-pressure nitrogen supply system, and the air outlet ends of the first oil collection pad, the second oil collection pad and the third oil collection pad are communicated with the air outlet pipeline through an eleventh closing valve.
Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:
1. the utility model provides a test section contains uncovered test area, optics test area and circumference test area, can satisfy basically and develop the fuel nozzle performance test of all different purposes.
2. The utility model provides a high pressure fuel all can provide the pressure of higher accuracy, all can provide accurate flow at the within range of 0-0.3kg/s at 0 ~ 14MPa within range, all can provide accurate temperature at the 0-60 ℃ within range.
3. The utility model discloses divide into main fuel feed system and assist fuel feed system, can be based on main fuel feed system and emphasize in optical test and circumference experiment, assist fuel feed system and emphasize all the other experiments such as withstand voltage test, can arrange the test equipment of different ranges, different precision in two kinds of systems according to experimental required precision, save the test bench resource, the rational utilization test bench resource.
4. The utility model discloses contain high-pressure air supply system and high-pressure nitrogen gas supply system, can be used for the effective area test of nozzle air volume, also can be used to sweep, can be used for the pneumatic gas of oil pump or valve again to can adopt high-pressure air or high-pressure nitrogen gas to develop the experiment according to the user's demand selection.
5. The utility model provides a control and display system can show the running state of test bench in real time to can carry out automatic setting and adjustment to test bench operational parameter, and carry out the aftertreatment analysis to test data.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic flow diagram of an embodiment of the present invention;
fig. 2 is a schematic flow chart according to a first embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In order to make the technical solution of the present invention better understood, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in fig. 1, a test system for a fuel nozzle performance test comprises a main fuel supply system 100, an auxiliary fuel supply system 101, a high-pressure air supply system 102, a high-pressure nitrogen supply system 103, a monitoring display system 104 and a test section system 105, wherein a fuel tank 1 in the main fuel supply system 100 is connected with the auxiliary fuel supply system 101, the auxiliary fuel supply system 101 and the main fuel supply system 100 are connected to the test section system 105, the pressure air supply system 102 and the high-pressure nitrogen supply system 103 are both connected to the test section system 105, and the monitoring display system 104 is connected with the main fuel supply system 100, the auxiliary fuel supply system 101, the high-pressure air supply system 102, the high-pressure nitrogen supply system 103 and the test section system 105.
On the basis of the embodiment, the main fuel supply system 100 comprises a fuel tank 1, an output end of the fuel tank 1 is connected with an input end of a first shut-off valve 2, an output end of the first shut-off valve 2 is connected with an input end of a first oil filter 3, an output end of the first oil filter 3 is connected with an input end of a high-pressure oil pump 4, an output end of the high-pressure oil pump 4 is connected with an input end of a first pressure reducing valve 5, an output end of the first pressure reducing valve 5 is connected with an input end of an energy storage set 72, an output end of the energy storage set 72 is connected with an input end of an electric heater 6, an output end of the electric heater 6 is connected with an input end of a heat exchanger 7, an output end of the heat exchanger 7 is connected with an input end of a high-range flow meter 8, an output end of the high-range flow meter 8 is connected with an input end of a low-, the output of the low range flow meter 9 is connected to the input of the test section system 105.
On the basis of the embodiment, the input end of the heat exchanger 7 is connected with the output end of the water pump 11 through the water quantity regulating valve 12, and the output end of the heat exchanger 7 is communicated with the drainage pipeline 13.
In the main fuel supply system 100, the volume of the fuel tank 1 is not less than 100 liters, and the fuel tank 1 is provided with a fuel level indicator, a low level safety switch, a fuel filling port and a fuel drain hole. The fuel tank 1 is arranged at a height such that fuel can be supplied to the high-pressure fuel pump 4 by gravity. The first shut-off valve 2 is used to control the opening or closing of the supply of fuel. The first oil filter 3 may be cleaned or replaced and has a relatively fine filter screen for filtering impurities in the fuel oil. The high-pressure oil pump 4 is a gear pump, and supplies an oil pressure of not less than 14MPa at the maximum and supplies a fuel flow of not less than 0.3kg/s at the maximum. The first pressure reducing valve 5 is used to regulate the control supply pressure and the first pressure reducing valve 5 may be operated in the monitoring and display system 104. The accumulator bank 72 is connected directly to the supply line for stabilizing the oil pressure at different fuel supply pressures, minimizing fluctuations in fuel pressure. The electric heater 6 is used to heat the fuel to the temperature required by the user, at least 60 ℃. The heat exchanger 7 can be used to cool the fuel temperature to the temperature required by the user, for example, under the condition that the electric heater is not turned on and the required fuel temperature is not high, the high-pressure oil pump 4 heats the fuel to a certain extent during the operation process itself, and the heat exchanger 7 can be used to cool the fuel temperature to the required low-temperature condition. The cooling medium in the heat exchanger 7 is domestic water, the domestic water is supplied to the heat exchanger 7 through the water pump 11, the drained water is drained to a sewer pipeline through the drainage pipeline 13, the water supply quantity is accurately controlled through the water quantity regulating valve 12 and is used for controlling the heat exchange quantity, so that the accurate control of the oil temperature is realized, and a temperature measuring device such as a thermocouple is further arranged at the outlet of the heat exchanger 7 and is used for monitoring the fuel oil temperature in real time. When the fuel flow is high, the low flow meter shutoff valve 10 is normally opened, the high-range flow meter 8 is adopted to measure the fuel flow, and the high-range flow meter 8 is a Coriolis flow meter, so that the performance is slowly declined, and the precision is high; when the fuel flow is low, the low flow meter shutoff valve 10 is closed, the low-range flow meter 9 is adopted to measure the fuel flow, and high fuel flow testing precision can be ensured in the fuel supply process with high flow or low flow. The fuel, which finally has a certain oil temperature and pressure, is supplied to the optical test zone 31 and the circumferential test zone 32 in the test zone system 105.
On the basis of the embodiment, the auxiliary fuel supply system 101 includes a second shut-off valve 14, an input end of the second shut-off valve 14 is connected with an auxiliary output end of the fuel tank 1, an output end of the second shut-off valve 14 is connected with an input end of a second oil filter 15, an output end of the second oil filter 15 is connected with an input end of an oil pump 16, an output end of the oil pump 16 is connected with an input end of a second pressure reducing valve 17, and an output end of the second pressure reducing valve 17 is connected with an input end of a test section system 105 through an auxiliary fuel supply flow meter 71.
In the above-described sub fuel supply system 101, the second shut-off valve 14 is used to control whether the sub fuel supply system supplies fuel to the test section system 105. The second oil filter 15 may be cleaned or replaced and has a fine filter screen for filtering impurities in the fuel oil. The oil pump 16 is used for supplying fuel with a certain flow rate, pressure and temperature, and the oil pump 16 can be used for supplying high-pressure fuel by using a gear pump, or can be used for supplying high-pressure fuel by using a pneumatic pump and opening the sixth shut-off valve 26 to supply high-pressure compressed air in the high-pressure air supply system 102 into the pneumatic pump. The second pressure reducing valve 17 is used to accurately control the fuel pressure to a value desired by a user. The auxiliary fuel flow meter 71 measures the fuel flow, and may be a coriolis flow meter with high accuracy or a turbine flow meter with slightly low accuracy. The resulting fuel, at a flow rate and pressure, is supplied to the open test zone 30 in the test section system 105.
On the basis of the embodiment, the high-pressure air supply system 102 includes a high-pressure compressor 20, an output end of the high-pressure compressor 20 is connected with an input end of a third shut-off valve 21, an output end of the third shut-off valve 21 is connected with an input end of a dehumidifier 22, an output end of the dehumidifier 22 is connected with an input end of a surge tank 75, an output end of the surge tank 75 is connected with an input end of an air filter 24, an output end of the air filter 24 is connected with an input end of a third pressure reducing valve 25, an output end of the third pressure reducing valve 25 is connected with input ends of a sixth shut-off valve 26, a seventh shut-off valve 27 and an eighth shut-off valve 28, wherein an output end of the seventh shut-off valve 27 is connected with an input end of a first gas flow meter 29, an output end of the first gas flow meter 29 is connected with an input end of a test section system 105, and an output end of the eighth shut-off, and the output of the sixth shut-off valve 26 is connected to the input of the oil pump 16, wherein the surge tank 75 is fitted with the relief valve 23.
In the above-mentioned high-pressure air supply system 102, the high-pressure compressor 20 supplies high-pressure air of not less than 2MPa, the third shut-off valve 21 is used for controlling whether to open the supply of the high-pressure air, the dehumidifier 22 is used for separating out water vapor in the air, the surge tank 75 is used for stabilizing the pressure of the compressed air and ensuring the stable pressure of the output air, the safety valve 23 is used for ensuring pressure relief protection, the air filter 24 is used for filtering impurities in the compressed air, the third pressure reducing valve 25 is used for accurately controlling the pressure of the high-pressure air to be required by a user, the sixth shut-off valve 26 is used for controlling whether to supply the high-pressure air to the oil pump 16, the seventh shut-off valve 27 is used for controlling whether to supply the high-pressure air to the open test area 30 of the test area system 105, the eighth shut-off valve 28 is used for controlling whether to supply the high-pressure air for purging to the test area system 105. Finally, the high pressure air in the high pressure air supply system 102 is supplied to the open test zone 30, either for fuel purging of the test section system 105, or for pneumatic use of the oil pump 16.
On the basis of the embodiment, the high-pressure nitrogen gas supply system 103 comprises a nitrogen gas cylinder group 33, an output end of the nitrogen gas cylinder group 33 is connected with an input end of a fifth reducing valve 34, an output end of the fifth reducing valve 34 is connected with an input end of a fourth shutoff valve 35, an output end of the fourth shutoff valve 35 is connected with an input end of a second gas flowmeter 36, an output end of the second gas flowmeter 36 is connected into the test section system 105, an output end of the fifth reducing valve 34 is further connected with an input end of a fifth shutoff valve 37, and an output end of the fifth shutoff valve 37 is connected into the test section system 105.
In the high-pressure nitrogen supply system 103, the nitrogen cylinder group 33 is a nitrogen gas source formed by connecting N nitrogen cylinders in parallel, N is greater than or equal to 1, the fourth pressure reducing valve 34 is used for controlling the nitrogen pressure to meet the requirement of a user, the fourth shut-off valve 35 is used for controlling whether to supply high-pressure nitrogen to the open test area 30, and the fifth shut-off valve 37 is used for controlling whether to supply nitrogen to the test section system 105 for fuel oil purging. Finally, the high pressure nitrogen in the high pressure nitrogen supply system 103 is supplied to the open test zone 30 or for fuel purge of the test section system 105. The high pressure nitrogen gas provided by the high pressure nitrogen gas supply system 103 may also be used for pneumatic valve supply, among other applications.
On the basis of the embodiment, the monitoring display system 104 comprises a data acquisition facility device 46, a data acquisition and analysis device 47, a control device 48 and a computer 49, wherein the data acquisition facility device 46 is communicated with a main fuel supply system 100, an auxiliary fuel supply system 101, a high-pressure air supply system 102, a high-pressure nitrogen supply system 103 and a test section system 105, an acquisition end of the data acquisition facility device 46 is connected with a receiving end of the data acquisition and analysis device 47, a controlled end of the data acquisition facility device 46 is connected with a control end of the control device 48, and the control device 48 and the data acquisition and analysis device 47 are connected to the computer 49.
In the monitor display system 104 described above, the data collection facility device 46 includes pressure sensors, temperature sensors, and flow meters for oil and water supply arranged in the main fuel supply system 100; a pressure sensor, a temperature sensor, and a flow meter for supplying oil in the auxiliary fuel supply system 101; a pressure sensor, a temperature sensor, and a flow meter in the high-pressure air supply system 102; a pressure sensor, a temperature sensor, and a flow meter in the high-pressure nitrogen gas supply system 103; the test section system 105 includes pressure sensors, temperature sensors, flow meters, electronic scales, optical instruments, and the like.
The test system operating parameters collected by the data collection facility device 46 are transmitted to the data collection and analysis device 47, the data collection and analysis device 47 processes the analog signals, converts the analog signals into digital signals, stores the digital signals in the computer 49, and displays the key parameters in the computer 49 in real time, so that the monitoring and the operation of operators are facilitated. An operator can set test operation parameters such as pressure, flowmeter temperature and the like and the switch of the valve on an operation interface of the computer 49, and parameter setting and pipeline operation management are realized through the control device 48 connected to the computer 49. The computer 49 also includes a data processing program for post-processing and graphical display of the test data.
On the basis of the embodiment, the test section system 105 comprises an open test area 30, an optical test area 31 and a circumferential test area 32, wherein the input end of the open test area 30 is connected with the output ends of the auxiliary fuel supply system 101, the high-pressure air supply system 102 and the high-pressure nitrogen supply system 103, the output end of the open test area 30 is connected with the input end of a first oil collecting pad 38, the input ends of the optical test area 31 and the circumferential test area 32 are respectively connected with the output end of the main fuel supply system 100 through a ninth shut-off valve 18 and a tenth shut-off valve 19, the output ends of the optical test area 31 and the circumferential test area 32 are respectively connected with the input ends of a second oil collecting pad 39 and a third oil collecting pad 40, the output ends of the first oil collecting pad 38, the second oil collecting pad 39 and the third oil collecting pad 40 are commonly connected to an oil collecting tank 43, the output end of the oil collecting tank 43 is connected with the input end of a return oil pump 45 through a third oil filter 44, the output end of the oil return pump 45 is connected with the oil return end of the oil tank 1, wherein the air inlet ends of the first oil collection pad 38, the second oil collection pad 39 and the third oil collection pad 40 are connected with the output end of the high-pressure air supply system 102 or the high-pressure nitrogen supply system 103, and the air outlet ends of the first oil collection pad 38, the second oil collection pad 39 and the third oil collection pad 40 are communicated with the exhaust pipeline 42 through an eleventh closing valve 41.
In the above-mentioned test section system 105, the open test area 30 has an open test chamber, and the test chamber is provided with connection interfaces with the auxiliary fuel supply system 101, the high-pressure air supply system 102 and the high-pressure nitrogen supply system 103, and the fuel introduced into the auxiliary fuel supply system 101 is used for carrying out a high-pressure oil pressure withstand test; the high-pressure air introduced into the high-pressure air supply system 102 or the high-pressure nitrogen introduced into the high-pressure nitrogen supply system 103 is used for a pressure resistance test of the high-pressure gas or a test of the effective area of the nozzle air passage.
Optical measurement equipment is arranged in the optical test area 31, so that the spray opening angle of the fuel nozzle can be photographed, recorded and subjected to image analysis, and the radial distribution of the spray can be photographed, observed, recorded and analyzed.
The circumferential test area 32 can be used for circumferential distribution testing of fuel spray, and is provided with circumferential block fuel collecting devices, and each block fuel collecting device is provided with an electronic scale or a volume measuring container for measuring and analyzing circumferential distribution of the fuel spray.
The open test area 30, the optical test area 31 and the circumferential test area 32 are all provided with tool equipment for fixing, positioning and auxiliary testing of the nozzles, and the tools can be designed and installed according to the requirements of users. The open test zone 30, the optical test zone 31 and the circumferential test zone 32 are all provided with abundant operating spaces for tests or operators to mount and dismount the nozzles and repair, maintain and replace the test equipment.
The ninth shut-off valve 18 and the tenth shut-off valve 19 are used to open or close the optical test zone 31 and the circumferential test zone 32, respectively. The fuel discharged from the open test zone 30, the optical test zone 31 and the circumferential test zone 32 is discharged into the oil collecting tank 43 through the first, second and third oil collecting cushions 38, 39, 40, respectively, wherein the first, second and third oil collecting cushions 38, 39, 40 are used for collecting the discharged oil of the test zone, the oil collecting cushions have an inclination angle from the periphery to the center and have a plurality of holes, the discharged oil is collected and discharged to the oil collecting tank 43, the high-pressure gas from the high-pressure air supply system 102 or the high-pressure nitrogen gas supply system 103 is supplied to the upper end faces of the first, second and third oil collecting cushions 38, 39, 40, the fuel in the oil collecting cushions is purged to avoid the existence of a large amount of accumulated oil in the test zone, and finally the high-pressure exhaust eleventh shutoff valve 41 and the exhaust pipeline 42 are discharged to the atmosphere.
The fuel in the oil collecting tank 43 is filtered by the third oil filter 44 to remove impurities in the fuel, and the discharged oil is returned to the oil tank 1 by the low-pressure oil return pump 45, so that the fuel circulation of the fuel nozzle test is completed.
Example one
On the basis of the above described embodiment, as shown in fig. 2, the heating and cooling means of the main fuel supply system 100 are arranged directly at the fuel tank 1 instead of in the supply line. The electric heater 73 is directly disposed in the oil tank 1 to directly heat the oil in the oil tank 1. In addition, an oil cooler 74 is also disposed directly in the oil tank 1 for cooling the oil in the oil tank 1. When the test system is applied to a region with a lower temperature, because the fuel oil in the oil tank 1 has a lower temperature, the oil temperature may still be lower even though the fuel oil is heated by the high-pressure oil pump 4, and the electric heater 73 can heat the fuel oil in the oil tank and then supply the heated fuel oil to the high-pressure oil pump 4, so that the fuel oil temperature required by a user is realized. When the test system is applied to a region with higher temperature, because the fuel oil in the oil tank 1 has higher temperature, the temperature is possibly too high after the fuel oil is heated by the high-pressure oil pump 4, and the fuel oil in the oil tank can be cooled by the oil cooler 74 and then supplied to the high-pressure oil pump 4, so that the fuel oil temperature required by a user is realized.
The utility model discloses at least, have following advantage:
1. the utility model provides a test section contains uncovered test area, optics test area and circumference test area, can satisfy basically and develop the fuel nozzle performance test of all different purposes.
2. The utility model provides a high pressure fuel all can provide the pressure of higher accuracy, all can provide accurate flow at the within range of 0-0.3kg/s at 0 ~ 14MPa within range, all can provide accurate temperature at the 0-60 ℃ within range.
3. The utility model discloses divide into main fuel feed system and assist fuel feed system, can be based on main fuel feed system and emphasize in optical test and circumference experiment, assist fuel feed system and emphasize all the other experiments such as withstand voltage test, can arrange the test equipment of different ranges, different precision in two kinds of systems according to experimental required precision, save the test bench resource, the rational utilization test bench resource.
4. The utility model discloses contain high-pressure air supply system and high-pressure nitrogen gas supply system, can be used for the effective area test of nozzle air volume, also can be used to sweep, can be used for the pneumatic gas of oil pump or valve again to can adopt high-pressure air or high-pressure nitrogen gas to develop the experiment according to the user's demand selection.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A test system for fuel nozzle performance test, its characterized in that: the fuel tank in the main fuel supply system (100) is connected with the auxiliary fuel supply system (101), the auxiliary fuel supply system (101) and the auxiliary fuel supply system (101) are connected to the auxiliary fuel supply system (105), the high-pressure air supply system (102) and the high-pressure nitrogen supply system (103) are connected to the test section system (105), the monitoring display system (104) is connected with the main fuel supply system (100), the auxiliary fuel supply system (101), the high-pressure air supply system (102), the high-pressure nitrogen supply system (103) and the test section system (105).
2. A test system for fuel injector performance testing as claimed in claim 1, wherein: the main fuel supply system (100) comprises a fuel tank (1), the output end of the fuel tank (1) is connected with the input end of a first shut-off valve (2), the output end of the first shut-off valve (2) is connected with the input end of a first oil filter (3), the output end of the first oil filter (3) is connected with the input end of a high-pressure oil pump (4), the output end of the high-pressure oil pump (4) is connected with the input end of a first pressure reducing valve (5), the output end of the first pressure reducing valve (5) is connected with the input end of an energy storage group (72), the output end of the energy storage group (72) is connected with the input end of an electric heater (6), the output end of the electric heater (6) is connected with the input end of a heat exchanger (7), the output end of the heat exchanger (7) is connected with the input end of a high-range flow meter (8), and the output end of the high-range flow meter (8) is connected with the, and the low-range flowmeter (9) is connected in parallel with the low-range flowmeter shutoff valve (10), and the output end of the low-range flowmeter (9) is connected with the input end of the test section system (105).
3. A test system for fuel injector performance testing as claimed in claim 2, wherein: the input end of the heat exchanger (7) is connected with the output end of the water pump (11) through a water quantity regulating valve (12), and the output end of the heat exchanger (7) is communicated with a drainage pipeline (13).
4. A test system for fuel injector performance testing as claimed in claim 1, wherein: the auxiliary fuel oil supply system (101) comprises a second shut-off valve (14), the input end of the second shut-off valve (14) is connected with the auxiliary output end of the oil tank (1), the output end of the second shut-off valve (14) is connected with the input end of a second oil filter (15), the output end of the second oil filter (15) is connected with the input end of an oil pump (16), the output end of the oil pump (16) is connected with the input end of a second pressure reducing valve (17), and the output end of the second pressure reducing valve (17) is connected with the input end of a test oil supply section system (105) through an auxiliary oil supply flow meter (71).
5. A test system for fuel injector performance testing as claimed in claim 1, wherein: the high-pressure air supply system (102) comprises a high-pressure air compressor (20), the output end of the high-pressure air compressor (20) is connected with the input end of a third shut-off valve (21), the output end of the third shut-off valve (21) is connected with the input end of a dehumidifier (22), the output end of the dehumidifier (22) is connected with the input end of a pressure stabilizing tank (75), the output end of the pressure stabilizing tank (75) is connected with the input end of an air filter (24), the output end of the air filter (24) is connected with the input end of a third pressure reducing valve (25), the output end of the third pressure reducing valve (25) is connected with the input ends of a sixth shut-off valve (26), a seventh shut-off valve (27) and an eighth shut-off valve (28), wherein the output end of the seventh shut-off valve (27) is connected with the input end of a first gas flow meter (29), and the output end of the first gas flow meter (29) is connected with the input end of a test, the output end of the eighth shut-off valve (28) is connected with the input end of the purging module of the test section system (105), and the output end of the sixth shut-off valve (26) is connected with the input end of the oil pump (16).
6. A test system for fuel injector performance testing as claimed in claim 1, wherein: the high-pressure nitrogen gas supply system (103) comprises a nitrogen gas bottle group (33), the output end of the nitrogen gas bottle group (33) is connected with the input end of a fifth reducing valve (34), the output end of the fifth reducing valve (34) is connected with the input end of a fourth shutoff valve (35), the output end of the fourth shutoff valve (35) is connected with the input end of a second gas flowmeter (36), the output end of the second gas flowmeter (36) is connected into the test section system (105), the output end of the fifth reducing valve (34) is also connected with the input end of a fifth shutoff valve (37), and the output end of the fifth shutoff valve (37) is connected into the test section system (105).
7. A test system for fuel injector performance testing as claimed in claim 1, wherein: the monitoring display system (104) comprises a data acquisition facility device (46), a data acquisition and analysis device (47), a control device (48) and a computer (49), wherein the data acquisition facility device (46) is communicated with a main fuel supply system (100), an auxiliary fuel supply system (101), a high-pressure air supply system (102), a high-pressure nitrogen supply system (103) and a test section system (105), an acquisition end of the data acquisition facility device (46) is connected with a receiving end of the data acquisition and analysis device (47), a controlled end of the data acquisition facility device (46) is connected with a control end of the control device (48), and the control device (48) and the data acquisition and analysis device (47) are connected to the computer (49).
8. A test system for fuel injector performance testing as claimed in claim 1, wherein: the test section system (105) comprises an open test area (30), an optical test area (31) and a circumferential test area (32), the input end of the open test area (30) is connected with the output ends of an auxiliary fuel supply system (101), a high-pressure air supply system (102) and a high-pressure nitrogen supply system (103), the output end of the open test area (30) is connected with the input end of a first oil collecting pad (38), the input ends of the optical test area (31) and the circumferential test area (32) are respectively connected with the output end of a main fuel supply system (100) through a ninth shut-off valve (18) and a tenth shut-off valve (19), the output ends of the optical test area (31) and the circumferential test area (32) are respectively connected with the input ends of a second oil collecting pad (39) and a third oil collecting pad (40), and the output ends of the first oil collecting pad (38), the second oil collecting pad (39) and the third oil collecting pad (40) are jointly connected to an oil collecting tank (43), the output end of the oil collecting tank (43) is connected with the input end of the oil return pump (45) through a third oil filter (44), and the output end of the oil return pump (45) is connected with the oil return end of the oil tank (1).
9. A test system for fuel injector performance testing as claimed in claim 8, wherein: and the air inlet ends of the first oil collecting pad (38), the second oil collecting pad (39) and the third oil collecting pad (40) are connected with the output end of a high-pressure air supply system (102) or a high-pressure nitrogen supply system (103), and the air outlet ends of the first oil collecting pad (38), the second oil collecting pad (39) and the third oil collecting pad (40) are communicated with an air outlet pipeline (42) through an eleventh closing valve (41).
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| CN201921827953.XU CN210533692U (en) | 2019-10-29 | 2019-10-29 | Test system for fuel nozzle performance test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595761A (en) * | 2019-10-29 | 2019-12-20 | 楼蓝科技(苏州)有限公司 | Test system for fuel nozzle performance test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110595761A (en) * | 2019-10-29 | 2019-12-20 | 楼蓝科技(苏州)有限公司 | Test system for fuel nozzle performance test |
| CN110595761B (en) * | 2019-10-29 | 2024-02-13 | 楼蓝科技(江苏)有限公司 | Test system for performance test of fuel nozzle |
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