CN113299173B - Nozzle demonstration oil way flow applied to aerospace - Google Patents
Nozzle demonstration oil way flow applied to aerospace Download PDFInfo
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- CN113299173B CN113299173B CN202110635280.3A CN202110635280A CN113299173B CN 113299173 B CN113299173 B CN 113299173B CN 202110635280 A CN202110635280 A CN 202110635280A CN 113299173 B CN113299173 B CN 113299173B
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Abstract
The invention relates to the technical field of aerospace, in particular to a nozzle demonstration oil way flow applied to aerospace, which realizes a quick, efficient and energy-saving oil supply and return oil way structure. Meanwhile, the effective oil return system can save the waste of oil, and the air-cooled heat exchanger is used for cooling the return oil, so that the oil temperature of the whole system is ensured to be within a normal range, and long-term sustainable operation is realized.
Description
Technical Field
The invention relates to the technical field of aerospace, in particular to a nozzle demonstration oil path flow applied to aerospace.
Background
In the prior art of aerospace technology, due to the requirements of learning, experiments or other examinations, a system structure capable of simulating the actual working condition of a nozzle needs to be designed, and besides the functionality, the system structure needs to have multiple advantages of high safety, low cost, simplicity and convenience in operation and the like so as to meet certain use requirements.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a nozzle demonstration oil path flow applied to aerospace, and the technical problem to be solved is how to design a nozzle simulation experiment oil path flow with multiple advantages of high safety, low cost and the like.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a nozzle demonstration oil path flow applied to aerospace is disclosed, and comprises the following steps:
s1: the oil tank is filled with oil, the oil is filtered by an air filter, and the oil quantity and the oil temperature are monitored by a liquid level liquid thermometer in the oil tank;
s2: starting the motor, pumping oil in the oil tank by the oil supply pump, and flowing to the one-way valve;
s3: the oil flowing through the one-way valve is filtered by the high-pressure filter, part of the oil reaches the oil outlet quick-change connector, and part of the oil is detected by the pressure gauge component and the pressure transmitter;
s4: the oil flowing through the oil outlet quick-change connector reaches the actuating mechanism and is actuated through the servo valve, the reversing valve and the synchronous valve in sequence;
s5: oil which finishes the action of the actuating mechanism enters an oil return pipeline through a servo valve;
s6: the oil entering the oil return pipeline sequentially passes through the oil return quick-change connector and the oil flow indicator, and then returns to the oil tank through the heat exchange of the air-cooled heat exchanger and the filtration of the oil return filter.
Further, in S1, an oil filter vehicle with oil filter precision larger than 20 mu is adopted to fill the oil tank.
Further, before S2, whether oil leakage and oil leakage exist in a joint of the hydraulic system or not and whether the oil suction ball valve is in an open state or not are checked, and then the pressure regulating handle of the pressure regulating valve is screwed to a low-pressure position.
Further, in S3, an electromagnetic overflow valve is connected between the oil tank and the oil outlet quick-change connector.
Further, in S4, the on-off valve is located at the oil supply outlet and used for controlling on-off of the servo valve, the controller feeds back position signals through the displacement sensor and achieves position closed-loop control through the servo valve, two synchronizing valves are respectively arranged at the A/B oil outlets of the servo valve and respectively supply oil to the oil cylinders, and therefore the oil cylinders can synchronously operate.
Further, the oil cylinder comprises an open-loop mode and a closed-loop mode, under the open-loop mode, the given current is input through the valve current to adjust the opening amount of the valve core, the range of the input current is +/-40 mA to-40 mA, under the closed-loop mode, the opening amount of the valve core is automatically adjusted through PID operation through the set position and the inside of the controller, and the input range of the set position is 86.0mm to 99.0mm.
Further, in S1, a liquid level transmitter and a temperature transmitter, and an oil drain ball valve are separately provided in the oil tank.
Furthermore, the filter shell should be removed in time after the pollution alarm occurs, and a new filter element should be replaced.
The beneficial effect that this technical scheme brought is: the invention relates to a nozzle demonstration oil way flow applied to aerospace, which realizes a quick, efficient and energy-saving oil supply and return oil way structure. Meanwhile, the effective oil return system can save the waste of oil, and the air-cooled heat exchanger is used for cooling the return oil, so that the oil temperature of the whole system is ensured to be within a normal range, and long-term sustainable operation is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a hydraulic schematic diagram of a nozzle demonstration oil path flow applied to aerospace in an embodiment of the invention;
FIG. 2 is a flow chart of steps in an embodiment of a nozzle demonstration oil path flow applied to aerospace according to the present invention;
in the figure: 1-oil tank, 2-temperature transmitter, 3-liquid level transmitter, 5-air filter, 6-liquid level liquid thermometer, 7-oil drain ball valve, 8-motor, 10-oil supply pump, 11-one-way valve, 12-high pressure filter, 13-pressure transmitter, 14-pressure gauge component, 15-oil outlet quick-change connector, 16-electromagnetic overflow valve, 17-oil return quick-change connector, 18-oil flow indicator, 19-air cooling heat exchanger, 20-oil return filter, 21-servo valve, 22-reversing valve and 23-synchronous valve.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it should be understood that they are presented herein only to illustrate and explain the present invention and not to limit the present invention.
As shown in fig. 1 and 2, the nozzle demonstration oil path process applied to aerospace specifically comprises the following steps:
s1: the oil tank 1 is filled with oil, the air filter 5 is adopted to filter the oil, and the liquid level liquid thermometer 6 in the oil tank 1 monitors the oil quantity and the oil quantity;
s2: starting the motor 8, pumping the oil in the oil tank 1 by the oil supply pump 10, and flowing to the one-way valve 11;
s3: the oil liquid flowing through the check valve 11 is filtered by a high-pressure filter 12, part of the oil liquid reaches an oil outlet quick-change connector 15, and part of the oil liquid is detected 13 by a pressure gauge component 14 and a pressure transmitter;
s4: the oil liquid flowing through the oil outlet quick-change connector 15 reaches the actuating mechanism and sequentially passes through the servo valve 21, the reversing valve 22 and the synchronous valve 23 to realize actuation;
s5: oil which finishes the action of the actuating mechanism enters an oil return pipeline through a servo valve 21;
s6: the oil entering the oil return line passes through the oil return quick-change connector 17 and the oil flow indicator 18 in sequence, then passes through the heat exchange of the air-cooled heat exchanger 19 and the filtration of the oil return filter 20, and returns to the oil tank 1.
Therefore, the oil supply and return oil way structure which is rapid, efficient and energy-saving is realized, and the oil supply and return oil way structure comprises a plurality of detection processes, is high in safety performance, has an obvious oil supply effect on an actuating mechanism, and is not easy to cause the situation of untimely oil supply. Meanwhile, the effective oil return system can save the waste of oil, and the air-cooled heat exchanger is used for cooling the return oil, so that the oil temperature of the whole system is ensured to be within a normal range, and long-term sustainable operation is realized.
In the embodiment, in S1, an oil filter vehicle with an oil filter precision greater than 20 μ is used to fill the oil tank 1, so that the quality of the oil can be ensured.
In this embodiment, before S2, whether the oil leakage and oil leakage of the joint in the hydraulic system occur or not and whether the oil suction ball valve is in an open state or not are checked, and then the pressure regulating handle of the pressure regulating valve is screwed to a low-pressure position, so that the safety of the whole system in the operation process can be ensured.
In S3, an electromagnetic spill valve 16 is connected between the oil tank 1 and the quick oil outlet joint 15, and can be used for adjusting the pressure in the whole system.
In this embodiment, in S4, the on-off valve is located at the oil supply outlet to control on-off of the servo valve 21, the controller feeds back a position signal through the displacement sensor, and the servo valve 21 implements position closed-loop control, two synchronization valves 23 are respectively disposed at two oil outlets a/B of the servo valve 21, and the synchronization valves 23 respectively supply oil to the plurality of oil cylinders to enable the plurality of oil cylinders to operate synchronously, thereby implementing normal operation of the actuating mechanism and meeting simulated use requirements.
In the embodiment, the oil cylinder comprises an open-loop mode and a closed-loop mode, in the open-loop mode, the given current is input through the valve current to regulate the opening amount of the valve core, the range of the input current is +/-40 mA, in the closed-loop mode, the opening amount of the valve core is automatically regulated through PID operation through the set position and the inside of the controller, and the input range of the set position is 86.0 mm-99.0 mm, so that the regulation of the opening amount of the valve core of the oil cylinder in the open-loop mode and the closed-loop mode is realized respectively.
In the embodiment, in S1, the liquid level transmitter 3 and the temperature transmitter 2 are separately arranged in the oil tank 1, and the oil drain ball valve 7 is used for monitoring the liquid level and the temperature of the oil tank 1, so that the oil drain ball valve 7 is used for draining oil.
In the embodiment, the filter shell should be removed in time after the pollution alarm occurs, and a new filter element is replaced, so that the safety of the system operation can be ensured.
In conclusion, the nozzle demonstration oil path flow applied to aerospace realizes a quick, efficient and energy-saving oil supply and return oil path structure, comprises a plurality of detection flows, is high in safety performance, has an obvious oil supply effect on an actuating mechanism, and is not easy to cause the situation of untimely oil supply. Meanwhile, the effective oil return system can save the waste of oil, and the air-cooled heat exchanger is used for cooling the return oil, so that the oil temperature of the whole system is ensured to be within a normal range, and long-term sustainable operation is realized.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (3)
1. The utility model provides a spout demonstration oil circuit flow for aerospace which characterized in that: the oil path flow is as follows:
s1: an oil filter vehicle with the oil filter precision of more than 20 mu is adopted to fill oil into an oil tank, an air filter is adopted to filter the oil, and a liquid level liquid thermometer in the oil tank monitors the oil quantity and the oil temperature;
s2: checking whether a joint in a hydraulic system has oil leakage or not and whether an oil absorption ball valve is in an open state or not, then screwing a pressure regulating handle of a pressure regulating valve to a low-pressure position, starting a motor, and pumping oil in an oil tank by an oil supply pump to flow to a one-way valve;
s3: the oil passing through the check valve is filtered by the high-pressure filter, part of the oil reaches the oil outlet quick-change connector and is detected by the pressure gauge assembly and the pressure transmitter, and an electromagnetic overflow valve is connected between the oil tank and the oil outlet quick-change connector;
s4: the oil liquid flowing through the oil outlet quick-change connector reaches an actuating mechanism and is actuated sequentially through a servo valve, a reversing valve and a synchronous valve, the on-off valve is positioned at an oil supply outlet and used for controlling the on-off of the servo valve, a controller feeds back a position signal through a displacement sensor and realizes position closed-loop control through the servo valve, two synchronous valves are respectively arranged at two oil outlets A/B of the servo valve and respectively supply oil to a plurality of oil cylinders to enable the plurality of oil cylinders to run synchronously, the oil cylinders comprise an open-loop mode and a closed-loop mode, the opening amount of a given current regulating valve core is input through valve current in the open-loop mode, the range of the input current is +/-40 mA, the range of the input current is +/-86.0 mm-99.0 mA, and the opening amount of the valve core is automatically regulated through PID operation in the set position and the controller in the closed-loop mode;
s5: oil which finishes the action of the actuating mechanism enters an oil return pipeline through a servo valve;
s6: the oil entering the oil return pipeline sequentially passes through the oil return quick-change connector and the oil flow indicator, and then returns to the oil tank through the heat exchange of the air-cooled heat exchanger and the filtration of the oil return filter.
2. A nozzle demonstration oil path process applied to aerospace according to claim 1, wherein: in S1, a liquid level transmitter, a temperature transmitter and an oil drain ball valve are separately arranged in an oil tank.
3. A nozzle demonstration oil path process applied to aerospace according to claim 1, wherein: and after the pollution alarm occurs, the filter shell is timely detached and a new filter element is replaced.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110635280.3A CN113299173B (en) | 2021-06-08 | 2021-06-08 | Nozzle demonstration oil way flow applied to aerospace |
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| CN202110635280.3A CN113299173B (en) | 2021-06-08 | 2021-06-08 | Nozzle demonstration oil way flow applied to aerospace |
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| CN113299173B true CN113299173B (en) | 2023-02-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100523472C (en) * | 2006-02-24 | 2009-08-05 | 同济大学 | Axial symmetric vector spray-pipe A9 action emergency resetting hydraulic system |
| CN101596938B (en) * | 2009-05-31 | 2013-04-17 | 广州飞机维修工程有限公司 | Test system of spoiler power control unit |
| CN202057493U (en) * | 2011-04-12 | 2011-11-30 | 新乡平原航空技术工程有限公司 | Oil source apparatus for detection of fuel oil system of engine |
| CN203081905U (en) * | 2013-01-30 | 2013-07-24 | 上海航新航宇机械技术有限公司 | Test bed of valve actuator cylinder |
| CN103993997B (en) * | 2014-04-16 | 2016-06-15 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of new work engine fuel oil drives equipment |
| CN106089532B (en) * | 2016-06-20 | 2018-12-18 | 上海交通大学 | Direct-injection fuel injector carbon deposit generates experiment porch in automotive engine cylinder |
| CN107843416A (en) * | 2017-09-28 | 2018-03-27 | 中国航发动力股份有限公司 | A kind of Aviation Fuel nozzle string oil detection method |
| CN112179635B (en) * | 2020-09-23 | 2022-08-02 | 中国航发沈阳黎明航空发动机有限责任公司 | Method and device for detecting performance of fuel nozzle of aircraft engine |
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