CN115523060B - Multi-ignition module system, filling method and test post-processing method - Google Patents
Multi-ignition module system, filling method and test post-processing method Download PDFInfo
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- CN115523060B CN115523060B CN202211153881.1A CN202211153881A CN115523060B CN 115523060 B CN115523060 B CN 115523060B CN 202211153881 A CN202211153881 A CN 202211153881A CN 115523060 B CN115523060 B CN 115523060B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 238000012805 post-processing Methods 0.000 title description 2
- 239000007788 liquid Substances 0.000 claims abstract description 105
- 238000007664 blowing Methods 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 88
- 239000007789 gas Substances 0.000 claims description 79
- 239000003350 kerosene Substances 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 17
- 239000012528 membrane Substances 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 4
- 230000037452 priming Effects 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 1
- LALRXNPLTWZJIJ-UHFFFAOYSA-N triethylborane Chemical compound CCB(CC)CC LALRXNPLTWZJIJ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/95—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by starting or ignition means or arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
- F02K9/56—Control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
- F02K9/56—Control
- F02K9/58—Propellant feed valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/60—Constructional parts; Details not otherwise provided for
- F02K9/605—Reservoirs
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model provides a many times ignition module system, filling method and test aftertreatment method, relate to the general field of liquid rocket engine, many times ignition module system includes the ignition agent storage tank, the air cavity of ignition agent storage tank communicates one end of intake pipe, the liquid cavity of ignition agent storage tank communicates one end of drain pipe, the other end of intake pipe and drain pipe all communicates control pipeline; one end of the control pipeline is a control gas inlet, the other end of the control pipeline is communicated with the engine, a stop valve is arranged on the control pipeline and is communicated with the liquid outlet pipe, the pressure of the control gas inlet is increased, the stop valve is opened, and the ignition agent can be input into the engine from the liquid outlet pipe through the stop valve; the pressurized air source inlet is communicated with the air inlet pipe; the liquid filling port and the gas blowing-out port are both communicated with the liquid outlet pipe; the second blowing opening is communicated with the control pipeline and is positioned at the outlet position of the stop valve. The internal and engine cavities of the multi-igniter module can be cleaned after use to remove the refill from the engine for reuse.
Description
Technical Field
The invention relates to a multiple ignition module system and a test post-treatment method, belongs to the field of the overall design of liquid rocket engines, and is particularly suitable for the liquid rocket engines with multiple starting requirements and the use and maintenance after test.
Background
In the field of liquid rocket engines, liquid oxygen kerosene engines are usually ignited by a chemical igniter, wherein the chemical igniter consists of 85% of triethylboron and 15% of triethylaluminum, and is a flammable and explosive dangerous chemical.
In the related art, at present, an igniter (ZL 201020251921.2) is used as a storage container of an igniter and a transport pipeline of fuel, the ignition conduit is a disposable part, and after each test of an engine is finished, a new ignition conduit is needed to be replaced. The engine is repeatedly used, and is complex to install and detach. Repeated use of the liquid rocket engine for a plurality of times provides a scheme of a plurality of ignition modules, and the patent: CN201811522659.8 (a single or multiple ignition suction extrusion half-film ignition module and method of operation and method of ignition agent charging) describes the operation and charging method of multiple ignition modules.
After the ignition agent is filled once, the ignition agent in the storage tank is filled into a corresponding pipeline of the engine according to the requirement, and the pipeline corresponds to the igniter described in the patent ZL 201020251921.2. The ignition agent storage tank can carry the total ignition agent required by multiple uses according to the flight or test requirements. And the multiple ignition module is a reusable piece.
After the repeated test run or the participation of the flight is finished, the repeated ignition module and the residual ignition agent in the engine pipeline are required to be treated completely, the repeated ignition agent module is disassembled, and the repeated ignition module can be refilled with the ignition agent after the disposable part such as the diaphragm valve is replaced, so that the repeated ignition module can be reused. Because of the relatively high activity of the ignition agent, spontaneous combustion occurs when air is encountered, and thus the ignition agent needs to be handled with great care and to avoid encountering air. There is currently no patent or report related to how to treat the multi-ignition module after its use is completed, thereby meeting the requirement of reuse.
Disclosure of Invention
The invention solves the technical problems that: the method for processing the multiple ignition agent modules after trial run is provided, so that the problems that the internal parts and the inner cavities of the engine are completely processed after the multiple ignition agent modules are used are solved, and the multiple ignition agent modules can be removed from the engine for refilling and reuse are solved.
The technical scheme of the invention is as follows:
a multiple ignition module system, comprising:
The ignition agent storage tank is provided with an air cavity and a liquid cavity which are separated by a semi-membrane, the air cavity is communicated with one end of an air inlet pipe, the liquid cavity is communicated with one end of a liquid outlet pipe, and the other ends of the air inlet pipe and the liquid outlet pipe are both communicated with a control pipeline;
one end of the control pipeline is a control gas inlet, the other end of the control pipeline is connected with a stop valve, and the stop valve is communicated with the liquid outlet pipe;
An outlet conduit, one end of which is communicated with the outlet of the stop valve, the other end is communicated with the engine; the pressure of the inlet of the control gas is increased, the stop valve is opened, and the ignition agent can be input into the engine from the liquid outlet pipe through the stop valve and the outlet conduit;
the pressurized air source inlet is communicated with the air inlet pipe;
The liquid filling port and the gas blowing-out port are both communicated with the liquid outlet pipe;
and the second blowing opening is communicated with the outlet position of the stop valve.
The air inlet pipe is provided with a first diaphragm valve, and the first diaphragm valve and the pressurized air source inlet are sequentially arranged at the communication position of the air inlet pipe along the flow direction of the air entering the air cavity; the liquid outlet pipe is provided with a second diaphragm valve, and the communication positions of the gas blowing opening and the liquid filling opening with the liquid outlet pipe and the second diaphragm valve are sequentially arranged along the direction that the ignition agent flows into the engine.
The liquid outlet pipe is provided with a first one-way valve, and an outlet of the first one-way valve is communicated with an inlet of the stop valve;
The outlet conduit is provided with a second one-way valve, and the outlet of the communication stop valve is communicated with the inlet of the second one-way valve.
The air inlet pipe is provided with a gas filling and discharging outlet, and the first diaphragm valve and the gas filling and discharging outlet are sequentially arranged along the flowing direction of the gas entering the air cavity; the liquid outlet pipe is provided with a liquid filling and discharging outlet, and the liquid filling and discharging outlet and the second diaphragm valve are sequentially arranged along the direction of the ignition agent flowing into the engine.
The end part of the control pipeline, which is provided with a control gas inlet, is connected with an electromagnetic valve;
The outlet of the stop valve is communicated with a blowing-off one-way valve, and the outlet of the second blowing-off opening is communicated with the inlet of the blowing-off one-way valve.
A method of priming a multiple ignition module system, comprising:
And high-pressure air is introduced from the control air inlet and acts on a control cavity of the stop valve, so that a valve core of the stop valve is pushed to move to open the stop valve, meanwhile, the high-pressure air acts on the first diaphragm valve, the high-pressure air acts on an air cavity of the storage tank after opening the first diaphragm valve, the air cavity extrudes the ignition agent in the liquid cavity to flow, and the ignition agent flows into the engine through the stop valve and the outlet conduit after opening the second diaphragm valve.
A method of trial aftertreatment of a multiple ignition module system, comprising:
S1, after the test run or the flight of the engine is finished, closing an electromagnetic valve, closing a stop valve, ventilating through a second blowing-out port, enabling gas to enter the outlet side of the stop valve (3) from the second blowing-out port, blowing the gas into the engine from an outlet conduit, and stopping blowing-out until the ignition agent in the engine is discharged from the outlet of the stop valve;
s2, disconnecting the outlet conduit from the engine, installing a drainage pipeline at a port of the outlet conduit connected with the engine for drainage, and inserting an outlet of the drainage pipeline into the solvent;
S3, keeping the control gas inlet closed;
S4, the inlet of the pressurized air source is ventilated, the air pressure of the inlet of the pressurized air source is P1, the P1 can ensure that a stop valve can be opened, and meanwhile, the P1 is not excessively high to damage a semi-membrane in an ignition agent storage tank; the gas blowing-out port is ventilated, the gas pressure of the gas blowing-out port is P2, the gas pressure P2 is less than P1, the stop valve is opened, meanwhile, under the action of P1-P2 pressure difference, the semi-membrane in the ignition agent storage tank is turned over to the liquid side from the gas side, and the residual ignition agent in the storage tank is discharged into kerosene through the liquid outlet pipe, the stop valve, the outlet pipe and the drainage pipeline; blowing off the liquid through a gas blowing-off port, and discharging the ignition agent from a liquid outlet pipe behind a liquid cavity outlet of the ignition agent storage tank;
s5, stopping the gas blowing port to ventilate the gas side of the propellant storage tank after no liquid flows out from the outlet of the drainage pipeline, and stopping ventilating the inlet of the pressurized gas source;
S6, opening a liquid filling port valve, supplying kerosene from the liquid filling port, wherein the pressure of the kerosene is higher than the atmospheric pressure, and the kerosene enters a liquid cavity of an ignition agent storage box through the liquid filling port;
And S7, repeating the steps S4-S6 to ensure that no ignition agent remains in the ignition agent storage tank and the pipeline, and ending the cycle until the step S5.
Repeating the steps S4-S6 for 3-5 times.
The solvent is a medium compatible with the chemical ignition agent and not easy to increase under the atmospheric pressure. Specifically, the solvent includes kerosene.
In the step S5, the pressurized air source inlet ventilation is stopped, and then the air blowing opening ventilation is stopped.
The gas introduced from the control gas inlet, the pressurized gas source inlet and the gas blowing-out port is inert gas.
In summary, the application at least comprises the following beneficial technical effects:
(1) The invention uses the ignition agent storage box to store the ignition agent needed by the engine for multiple ignition, and the air source extrudes the half membrane of the storage box and opens the liquid path stop valve of the storage box, thereby realizing the injection of the ignition agent needed by a single test to the ignition pipeline of the engine. Compared with the existing single-use ignition guide tube scheme, the system has the characteristics of modularized design, capability of being used by filling for multiple times, and the like, and is perfect in setting and strong in operability.
(2) The invention provides a multiple ignition module post-treatment scheme, which utilizes kerosene to repeatedly discharge an ignition agent storage tank, so as to dissolve and clean the ignition agent, and define the treatment principle and the implementation sequence. The processing system is simple and reliable, the contact of the ignition agent and air is avoided in the process, and the use and maintenance level of the ignition module on the engine is improved.
(3) And the processing system and the ignition module are respectively provided with a one-way valve or a control valve on the opposite connection pipeline, so that the mixing of gas and liquid in the blowing-off and filling processes is avoided.
Drawings
FIG. 1 is a schematic diagram of a multiple ignition module system in accordance with an embodiment of the present application.
Reference numerals illustrate: 1. an ignition agent reservoir; 111. an air cavity; 112. a liquid chamber; 2. an electromagnetic valve; 3. a stop valve; 31. a valve core; 4. blowing off the one-way valve; 5. a first one-way valve; 6. a second one-way valve; 7. a first diaphragm valve; 8. a second diaphragm valve;
12. a gas filling and discharging port; 13. a liquid filling and discharging port;
14. A liquid filler; 15. a gas blow-off port; 16. a pressurized air source inlet; 17. a second blow-off port; 18. a control gas inlet;
19. an air inlet pipe; 20. a liquid outlet pipe; 21. a control pipeline; 22. an outlet conduit;
101/102/103/104 are manual control valves, specifically, 101 is a manual control valve of a pressurized air source inlet, 102 is a manual control valve of a gas blowing-out port, 103 is a manual control valve of a liquid filling port, 104 is a manual control valve of a second blowing-out port, and a control switch is used in the post-treatment process.
Detailed Description
The application is described in further detail below with reference to the attached drawings and to specific embodiments:
Referring to fig. 1, a multiple ignition module system includes an ignition agent storage tank 1, an air cavity 111 of the ignition agent storage tank 1 is communicated with one end of an air inlet pipe 19, a liquid cavity 112 of the ignition agent storage tank 1 is communicated with one end of a liquid outlet pipe 20, and the other ends of the air inlet pipe 19 and the liquid outlet pipe 20 are both communicated with a control pipeline 21. One end of the control pipeline 21 is a control gas inlet 18, the other end of the control pipeline is communicated with the stop valve 3, the stop valve 3 is communicated with the liquid outlet pipe 20, one end of the outlet conduit 22 is communicated with the outlet of the stop valve 3, and the other end of the outlet conduit is communicated with the engine. The control gas inlet 18 is pressurized and the shut-off valve 3 is opened, so that the ignition agent can be fed from the liquid outlet pipe 20 to the engine via the shut-off valve 3 and the outlet conduit 22. The control line 21 is provided with a control gas inlet 18, the end of which is connected to the solenoid valve 2.
The air inlet pipe 19 is communicated with a pressurized air source inlet 16; the liquid outlet pipe 20 is communicated with a liquid filling port 14 and a gas blowing-out port 15; the control pipeline 21 is communicated with a second blowing opening 17, the second blowing opening 17 is positioned at the outlet position of the stop valve 3, the control pipeline 21 is communicated with a blowing one-way valve 4, the second blowing opening 17 is communicated with the inlet of the blowing one-way valve 4, and the outlet of the blowing one-way valve 4 is communicated with the control pipeline 21.
The air inlet pipe 19 is provided with a first diaphragm valve 7, and the first diaphragm valve 7 and the pressurized air source inlet 16 are sequentially arranged at the communication position of the air inlet pipe 19 along the flow direction of the air entering the air cavity 111; the liquid outlet pipe 20 is provided with a second diaphragm valve 8, and the positions of communication between the gas blow-off port 15 and the liquid filling port 14 and the liquid outlet pipe 20 and the second diaphragm valve 8 are provided in this order along the direction in which the ignition agent flows into the engine.
The liquid outlet pipe 20 is provided with a first one-way valve 5, the outlet of the first one-way valve 5 is communicated with the inlet of the stop valve 3, the control pipeline 21 is provided with a second one-way valve 6, and the inlet of the second one-way valve 6 is communicated with the outlet of the stop valve 3.
The air inlet pipe 19 is provided with a gas filling and discharging outlet 12, and the first diaphragm valve 7 and the gas filling and discharging outlet 12 are sequentially arranged along the flow direction of the gas entering the air cavity 111; the liquid outlet pipe 20 is provided with a liquid filling and discharging outlet 13, and the liquid filling and discharging outlet 13 and the second diaphragm valve 8 are arranged in sequence along the direction of the ignition agent flowing into the engine.
The control gas inlet 18, the pressurized gas source inlet 16 and the gas blowing-out port 15 are all inert gases, and the inert gases can be nitrogen, helium and the like.
A method of priming a multiple ignition module system, comprising the steps of;
Specifically, when the ignition agent tank 1 inputs an ignition agent to the engine: the inlet of the electromagnetic valve 2 is communicated with high-pressure control gas, the electromagnetic valve 2 is electrified and opened, the high-pressure control gas burst membrane acts on the air cavity 111 of the ignition agent storage tank 11, meanwhile, the high-pressure control gas acts on the valve core of the stop valve 3, the stop valve 3 is opened, the pressure of the air cavity 111 of the ignition agent storage tank 11 is increased, and the ignition agent burst membrane valve sequentially passes through the first one-way valve 5, the stop valve 3, the second one-way valve 6 and the outlet conduit 22 and then enters the inner cavity of the engine.
The ignition dose into the engine is controlled by controlling the operating time of the solenoid valve 2, and the opening and closing of the shut-off valve 3 is controlled by controlling whether the solenoid valve 2 is ventilated or not. The solenoid valve 2 stops ventilation, the shut-off valve 3 closes, and the supply of the ignition agent is shut off.
The first one-way valve 5 is mainly used for plugging the storage tank ignition agent after the storage tank is ruptured by the diaphragm valve for the first time, so that the ignition agent is prevented from flowing reversely. The second non-return valve 6 mainly prevents the fuel in the fuel circuit from entering the ignition agent reservoir 1 when the engine is in operation.
A post-treatment method for a multi-ignition module system is characterized in that the principle of post-treatment is to dissolve and clean the ignition agent by using kerosene on the premise of avoiding the contact of the ignition agent with air.
The inlet of the conduit 18 is connected with a pressurized air source, and the liquid filling port 14 is connected with kerosene. Before the start of the treatment, inert gas replacement needs to be performed on the front pipelines of the liquid filling port 14 and the gas blowing port 15, so that residual air in the valve pipelines of the liquid filling port 14 and the gas blowing port 15 can be prevented from entering the multi-ignition module during the subsequent treatment.
The post-test treatment method comprises the following steps:
s1, after the test run or the flight of the engine is finished, at the moment, the electromagnetic valve 2 is closed, the air is ventilated through the second blowing-out port 17, the air is blown into the valve core outlet side of the stop valve 3 from the second blowing-out port 17 and is blown into the engine from the outlet conduit 22 until the ignition agent in the engine is discharged from the outlet side of the stop valve 3, and the blowing-out is stopped;
s2, disconnecting the outlet conduit 22 from the engine, installing a drainage pipeline at a port of the outlet conduit 22 connected with the engine for drainage, and inserting an outlet of the drainage pipeline into kerosene to prevent the discharged ignition agent from burning with air;
S3, keeping the control gas inlet 18 closed;
S4, the pressurized air source inlet 16 is ventilated, the air pressure of the pressurized air source inlet 16 is P1, the air pressure P1 ensures that the stop valve 3 can be opened, and meanwhile, the air pressure P1 is not excessively high (no more than 2MPa is recommended) to prevent the excessively high pressure from damaging the flexible semi-membrane in the igniter storage tank 1. Simultaneously, the gas blowing opening 15 is ventilated (pressure P2), the gas pressure P2 is less than P1, the pressure of the gas cavity 111 of the ignition agent storage tank 1 is ensured to be larger than that of the liquid cavity 112, the stop valve 3 is opened under the action of the pressure of the pressurized gas source inlet 16, and simultaneously, under the action of the pressure difference (P1-P2) between the gas side and the liquid side, the semi-membrane in the ignition agent storage tank 1 is turned over from the gas side to the liquid side, and the residual ignition agent in the storage tank is discharged into kerosene through the liquid outlet pipe 20, the first one-way valve 5, the stop valve 3, the first one-way valve 6, the outlet conduit 22 and the drainage pipeline; blowing off the ignition agent through a gas blowing-off port 15, and discharging the ignition agent from a liquid outlet pipe 20 after the liquid cavity 112 of the ignition agent storage tank 1 is discharged;
S5, stopping the gas blowing opening 15 to ventilate the gas side of the igniter storage tank 1 after no liquid flows out from the outlet of the drainage pipeline, and stopping ventilating the pressurized gas source inlet 16;
S6, opening a valve of the liquid filling port 14, supplying 0.07MPa (gauge pressure) kerosene from the liquid filling port 14 (the pressure is slightly higher than the atmospheric pressure), enabling the kerosene to enter a liquid cavity 112 of the ignition agent storage tank 1 through the liquid filling port 14, diluting the ignition agent remained in the storage tank and the starting tank by using the kerosene, calculating filling time according to the volume and the filling speed of the storage tank, and then closing the valve of the liquid filling port 14;
And S7, repeating the steps S4-S6 for 3-5 times to ensure that no ignition agent remains in the ignition agent storage tank 1 and the pipeline, and ending the cycle until the step S5.
When the ignition agent is injected into the ignition agent storage tank:
The semi-membrane overturning is realized by adjusting the pressure difference between the two ends of the air cavity and the liquid cavity of the storage tank and controlling the pressure difference between the air cavity and the liquid cavity. Before the ignition agent is filled, the air cavity and the liquid cavity of the storage box are vacuumized and replaced by nitrogen. The external ignition agent filling tool is used for connecting the ignition agent filling storage tank, and the ignition agent is gradually sucked into the liquid cavity of the storage tank by utilizing negative pressure through adjusting the pressure of the air cavity and the liquid cavity. See comparative document CN201811522659.8 for specific steps.
The implementation principle of the application is as follows: the control pipeline 21 is connected in parallel with the ignition agent storage tank 1, and the stop valve 3 is connected between the control pipeline 21 and the liquid outlet pipe 20 to control the opening and closing of the ignition agent injection. And providing a liquid filler port 14, a gas blow-off port 15, a pressurized gas source inlet 16, and a second blow-off port 17 to perform a specific step of post-test treatment on the multiple ignition module system, the multiple ignition module can be cleaned inside and the engine cavity after use, so as to be removed from the engine for refill and reuse.
While the invention has been described in terms of the preferred embodiment, it is not intended to limit the invention, but it will be apparent to those skilled in the art that variations and modifications can be made without departing from the spirit and scope of the invention, and therefore the scope of the invention is defined in the appended claims.
Claims (6)
1. A multiple ignition module system, characterized by: comprising
The ignition agent storage tank (1) is provided with an air cavity (111) and a liquid cavity (112) which are separated by a semi-membrane, the air cavity (111) is communicated with one end of an air inlet pipe (19), the liquid cavity (112) is communicated with one end of a liquid outlet pipe (20), and the other ends of the air inlet pipe (19) and the liquid outlet pipe (20) are both communicated with a control pipeline (21);
one end of the control pipeline (21) is a control gas inlet (18), the other end of the control pipeline is connected with the stop valve (3), and the stop valve (3) is communicated with the liquid outlet pipe (20);
an outlet conduit (22), one end of which is communicated with the outlet of the stop valve (3) and the other end of which is communicated with the engine; the pressure of the control gas inlet (18) is increased, the stop valve (3) is opened, and the ignition agent can be input into the engine from the liquid outlet pipe (20) through the stop valve (3) and the outlet conduit (22);
a pressurized air source inlet (16) communicated with the air inlet pipe (19);
the liquid filling port (14) and the gas blowing-out port (15) are both communicated with the liquid outlet pipe (20);
a second blowing opening (17) communicated with the outlet position of the stop valve (3);
The air inlet pipe (19) is provided with a first diaphragm valve (7), and the first diaphragm valve (7) and the pressurized air source inlet (16) are sequentially arranged at the communication position of the air inlet pipe (19) along the flow direction of the air entering the air cavity (111); the liquid outlet pipe (20) is provided with a second diaphragm valve (8), and the communication positions of the gas blowing opening (15) and the liquid filling opening (14) and the liquid outlet pipe (20) and the second diaphragm valve (8) are sequentially arranged along the direction of the ignition agent flowing into the engine;
The liquid outlet pipe (20) is provided with a first one-way valve (5), and an outlet of the first one-way valve (5) is communicated with an inlet of the stop valve (3);
The outlet conduit (22) is provided with a second one-way valve (6), and the outlet of the communication stop valve (3) is communicated with the inlet of the second one-way valve (6);
The air inlet pipe (19) is provided with a gas filling and discharging outlet (12), and the first diaphragm valve (7) and the gas filling and discharging outlet (12) are sequentially arranged along the flowing direction of the gas entering the air cavity (111); the liquid outlet pipe (20) is provided with a liquid filling and discharging outlet (13), and the liquid filling and discharging outlet (13) and the second diaphragm valve (8) are sequentially arranged along the direction that the ignition agent flows into the engine;
The end part of the control pipeline (21) provided with a control gas inlet (18) is connected with the electromagnetic valve (2);
The outlet of the stop valve (3) is communicated with a blowing-off one-way valve (4), and the outlet of the second blowing-off opening (17) is communicated with the inlet of the blowing-off one-way valve (4).
2. A method of priming a multiple ignition module system as claimed in claim 1, wherein: comprising
High-pressure air is introduced from a control air inlet (18), the high-pressure air acts on a control cavity of the stop valve (3), so that a valve core of the stop valve (3) is pushed to move to open the stop valve (3), meanwhile, the high-pressure air acts on the first diaphragm valve (7), the high-pressure air acts on an air cavity (111) of the storage tank after opening the first diaphragm valve (7), the air cavity (111) extrudes an ignition agent in the liquid cavity (112) to flow, and the ignition agent flows into an engine through the stop valve (3) and an outlet conduit (22) after opening the second diaphragm valve (8).
3. The method of post-test treatment of a multiple ignition module system of claim 1, wherein: comprising
S1, after the test run or the flight of the engine is finished, at the moment, the electromagnetic valve (2) is closed, the stop valve (3) is closed, the air is ventilated through the second blowing-out port (17), the air enters the outlet side of the stop valve (3) from the second blowing-out port (17) and is blown into the engine from the outlet conduit (22), and after the ignition agent in the engine is discharged from the outlet of the stop valve (3), the blowing-out is stopped;
s2, disconnecting the outlet conduit (22) from the engine, installing a drainage pipeline at a port of the outlet conduit (22) connected with the engine for drainage, and inserting an outlet of the drainage pipeline into the solvent;
s3, keeping the control gas inlet (18) closed;
S4, the pressurized air source inlet (16) is ventilated, the air pressure of the pressurized air source inlet (16) is P1, the P1 can ensure that the stop valve (3) can be opened, and meanwhile, the P1 is not excessively high to damage a semi-membrane in the ignition agent storage tank (1); the gas blowing-out port (15) is ventilated, the gas pressure of the gas blowing-out port (15) is P2, the gas pressure P2 is less than P1, the stop valve (3) is opened, meanwhile, under the action of the pressure difference between P1 and P2, the semi-membrane in the ignition agent storage tank (1) is turned over to the liquid side from the gas side, and the residual ignition agent in the storage tank is discharged into kerosene through the liquid outlet pipe (20), the stop valve (3), the outlet pipe (22) and the drainage pipeline; blowing off the liquid through a gas blowing-off port (15), and discharging the ignition agent from a liquid outlet pipe (20) behind the outlet of a liquid cavity (112) of the ignition agent storage tank (1);
S5, stopping ventilation of the gas blowing opening (15) to the gas side of the igniter storage tank (1) and stopping ventilation of the pressurized gas source inlet (16) after no liquid flows out from the outlet of the drainage pipeline;
S6, opening a valve of a liquid filling port (14), and supplying kerosene from the liquid filling port (14), wherein the pressure of the kerosene is higher than the atmospheric pressure, and the kerosene enters a liquid cavity (112) of the ignition agent storage tank (1) through the liquid filling port (14);
And S7, repeating the steps S4-S6 to ensure that no ignition agent remains in the ignition agent storage tank (1) and the pipeline, and ending the cycle until the step S5.
4. A method of post-test treatment of a multiple ignition module system as claimed in claim 3, wherein: repeating the steps S4-S6 for 3-5 times.
5. A method of post-test treatment of a multiple ignition module system as claimed in claim 3, wherein: in the step S5, the ventilation of the pressurized air source inlet (16) is stopped, and then the ventilation of the air blowing opening (15) is stopped.
6. A method of post-test treatment of a multiple ignition module system as claimed in claim 3, wherein: the control gas inlet (18), the pressurized gas source inlet (16) and the gas blowing-out port (15) are all inert gases.
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| CN109630320A (en) * | 2018-10-22 | 2019-04-16 | 陕西蓝箭航天技术有限公司 | Purging system and blowing adapter for cryogenic liquid rocket engine |
| CN110219751A (en) * | 2019-06-28 | 2019-09-10 | 蓝箭航天空间科技股份有限公司 | A kind of multiple starting system and starting method of recyclable liquid-propellant rocket engine |
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| DE1626050B2 (en) * | 1967-02-23 | 1971-12-30 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | DEVICE FOR ADJUSTING A FIXANT FOR HYPERGOL-IGNITED LIQUID ROCKET ENGINES COMBUSTION CHAMBERS |
| DE4415259C1 (en) * | 1994-04-30 | 1995-06-08 | Daimler Benz Aerospace Ag | Thrust generator for military aircraft and rockets |
| CN113530714B (en) * | 2021-09-16 | 2021-12-14 | 西安空天引擎科技有限公司 | Pumping pressure type engine starting ignition method and system based on hydrogen peroxide |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109630320A (en) * | 2018-10-22 | 2019-04-16 | 陕西蓝箭航天技术有限公司 | Purging system and blowing adapter for cryogenic liquid rocket engine |
| CN110219751A (en) * | 2019-06-28 | 2019-09-10 | 蓝箭航天空间科技股份有限公司 | A kind of multiple starting system and starting method of recyclable liquid-propellant rocket engine |
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