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Intelligent regulation delivery system and method for rocket motor
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A rocket engine and intelligent adjustment technology, applied in the field of aerospace, can solve the problems of poor accuracy and stability
Active Publication Date: 2021-04-30
BEIHANG UNIV
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[0004] In terms of flow supply, the flow rate of the extrusion delivery system is related to the pressure before the cavitation venturi and the throat area of the cavitation venturi. Due to the poor accuracy and stability of the supply pressure adjustment of the extrusion supply system, Therefore, adjusting the flow rate of the extrusion supply system by adjusting the pressure before the cavitation venturi will also have poor accuracy and stability.
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Embodiment 1
[0050] figure 1 It is a schematic diagram of the intelligent adjustment delivery system of the rocket motor provided by Embodiment 1 of the present invention.
[0051] refer to figure 1 and image 3 , the system includes: flow sensor 3, pressure sensor 2, comparison circuit 4, controller 5, frequency converter 1, servo motor 8, pump 9, overflow safety valve 6, pilot proportional overflow valve 7 and motor 10; frequency conversion The device 1 provides three-phase power to the motor 10, and the motor 10 will drive the pump 9 to rotate;
[0052] The flow sensor 3, the pressure sensor 2, the frequency converter 1, the servo motor 8, the controller 5, the overflow safety valve 6 and the pilot proportional overflow valve 7 are respectively connected with the comparison circuit 4, and the servo motor 8 is connected with the pump 9, The overflow safety valve 6 and the pilot proportional overflow valve 7 are respectively connected with the controller 5;
[0053] The flow sensor 3 ...
Embodiment 2
[0102] Figure 4 It is a structural schematic diagram of another rocket motor intelligent adjustment delivery system provided by Embodiment 2 of the present invention.
[0103] refer to Figure 4 , the system includes: kerosene filling inlet 11, filling hand valve 12, filling filter 13, overflow safety valve 6, kerosene storage tank 14, pre-pump filter 15, servo motor 8, pump 9, motor 10, Pilot-operated proportional relief valve 7, pressure gauge 16, post-valve filter 17, flow sensor 3, pressure sensor 2, flow regulating valve 18, reversing valve 19, solenoid valve 20, one-way valve 21, delivery system outlet 22 and Inverter 1.
[0104] The kerosene filling inlet 11 is threadedly connected with the kerosene tank to realize the filling of kerosene, and the delivery system outlet 22 is connected with the entrance of the thrust chamber of the rocket engine by threads. The kerosene filling inlet 11 adopts the aerospace standard 37-degree ball joint connection mode, thereby matc...
Embodiment 3
[0119] Figure 5 It is a flow chart of the intelligent adjustment and delivery method of the rocket engine provided by Embodiment 3 of the present invention.
[0120] refer to Figure 5 , an intelligent adjustment delivery system applied to a rocket engine, the method includes the following steps:
[0121] Step S101, collecting the current pipeline flow value and the current pipeline pressure value;
[0122] Step S102, when the pump is in a static state, output a voltage signal, and control the inclination angle of the oil distribution plate of the pump according to the voltage signal, so as to adjust the flow of the pipeline;
[0123] Step S103, when the pump is in the rotating state, compare the current pipeline flow value with the preset flow value to obtain a first comparison result, and generate first control instruction information according to the first comparison result;
[0124] Step S104, controlling the flow of the pipeline according to the first control instruct...
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Abstract
The present invention provides an intelligent adjustment conveying system and method for a rocket engine, comprising: a flow sensor collects the current pipeline flow value; a pressure sensor collects the current pipeline pressure value; a comparison circuit outputs a voltage signal when the pump is in a static state; In the rotating state, compare the current pipeline flow value with the preset flow value to obtain the first comparison result, and send the first control instruction information to the inverter; according to the current pipeline pressure value and the preset pressure value, the current difference value is obtained The absolute value of the current difference; compare the absolute value of the current difference with the preset fine-tuning cut-off value to obtain the second comparison result; the servo motor controls the inclination angle of the oil distribution plate of the pump according to the voltage signal to adjust the flow of the pipeline; the frequency converter according to The first control command information controls the flow of the pipeline; the controller controls the opening of the overflow safety valve or the opening of the pilot proportional overflow valve according to the second comparison result, so that the pressure supply and flow adjustment have high accuracy and stability.
Description
technical field [0001] The invention relates to the field of aerospace technology, in particular to an intelligent adjustment delivery system and method for a rocket engine. Background technique [0002] At present, the kerosene delivery system used in the rocket engine ground test usually adopts the extrusion delivery system, that is, the kerosene storage tank filled with kerosene is filled with high-pressure gas, and then the kerosene is supplied to the thrust chamber of the rocket engine at a certain pressure and flow rate. middle. [0003] In terms of pressure supply, the supply pressure range of the extrusion conveying system is limited by the high-pressure gas, that is, the supply pressure cannot be higher than the pressure of the high-pressure gas. Therefore, the supply pressure of the extrusion conveying system is generally low. At the same time, with the continuous consumption of high-pressure gas, the pressure of high-pressure gas continues to decrease. Although a...
Claims
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Application Information
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