CN110407655A - A kind of chemic ignition device and method based on low temp fuel - Google Patents
A kind of chemic ignition device and method based on low temp fuel Download PDFInfo
- Publication number
- CN110407655A CN110407655A CN201910667722.5A CN201910667722A CN110407655A CN 110407655 A CN110407655 A CN 110407655A CN 201910667722 A CN201910667722 A CN 201910667722A CN 110407655 A CN110407655 A CN 110407655A
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- CN
- China
- Prior art keywords
- spacer medium
- conduit
- filling
- low temp
- igniting
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Classifications
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C9/00—Chemical contact igniters; Chemical lighters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Feeding And Controlling Fuel (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of chemic ignition device and method based on low temp fuel, it is intended to solve the problems, such as that igniting agent existing in the prior art easily freezes, blocks supply system and lead to loss of ignition.The device includes isolated location；Isolated location includes spacer medium filling conduit, filling duct entry valve and filling conduit outlet valve；Spacer medium filling conduit both ends are separately connected fuel supply unit and igniting unit；The spacer medium container of spacer medium is also housed thereon by filling duct entry valve connection, the freezing point of spacer medium is less than the boiling point of low temp fuel, and boiling point is greater than the freezing point of igniting agent；Transparent pipe of the position higher than spacer medium filling conduit also is connected with by filling conduit outlet valve on spacer medium filling conduit.Based on the device the present invention also provides a kind of chemic ignition method based on low temp fuel, spacer medium is promoted to promote igniting agent by low temp fuel, so that igniting agent contacts simultaneously spontaneous combustion with oxidant, to complete to light a fire.
Description
Technical field
The present invention relates to the ignition methods of rocket engine, and in particular to a kind of chemic ignition device based on low temp fuel
And method.
Background technique
For nonflammable bi propellant rocket engine, chemic ignition is a kind of important sparking mode.In engine start
In the process, igniting agent is squeezed into fuel assembly and completes igniting by fuel, and realizes the gentle relay of igniting agent and fuel, the igniting side
Case is simple, reliable, using maturation on oxygen kerosene engine.
However, for cryogenic propellant engine, due to will cause igniting agent knot when low temp fuel squeezes igniting agent
Ice blocks supply system, causes loss of ignition, therefore the supplying mode for directlying adopt low temp fuel extruding igniting agent is unreliable.
Summary of the invention
The present invention provides a kind of chemic ignition device and method based on low temp fuel, it is intended to which solution is deposited in the prior art
Igniting agent easily freeze, block the problem of supply system leads to loss of ignition.
The technical scheme adopted by the invention is that a kind of chemic ignition device and method based on low temp fuel, including combustion
Expect supply unit and igniting unit；
It is characterized in that further include isolated location；
The isolated location includes spacer medium filling conduit, filling duct entry valve, spacer medium container, fills and lead
Pipe outlet valve and transparent pipe；
The spacer medium filling tube at one end connects fuel supply unit, and the other end connects igniting unit；
It is connect by filling duct entry valve with spacer medium container on the spacer medium filling conduit, the isolation
Spacer medium is filled in media Containers；
The freezing point of the spacer medium is less than the boiling point of low temp fuel, and the boiling point of spacer medium is greater than the freezing point of igniting agent；
Transparent pipe, the position of the transparent pipe are connected by filling conduit outlet valve on the spacer medium filling conduit
Conduit is filled higher than the spacer medium.
Further, the spacer medium is propane.
Further, in order to remove spacer medium filling conduit in impurity, the filling duct entry valve be isolated
It is communicated with blowing interface between media Containers, is additionally provided with blow-off cock on the blowing interface.
Further, automatic valve is also connected on the transparent pipe.
Further, normally transparent pipe resistance to pressure is lower, in order to prevent transparent pipe quick-fried when low temp fuel enters work
Broken, the filling duct entry valve and filling conduit outlet valve are hand-operated valve, and hand-operated valve bearing capacity is strong.
Further, pressure sensor and temperature sensing are additionally provided on the spacer medium filling conduit.
Further, supply road is additionally provided between the fuel supply unit and spacer medium filling conduit to be isolated
Valve, whether for controlling the supply of low temp fuel.
Further, the igniting unit includes igniting conduit, and the igniting tube at one end and the spacer medium fill
Conduit connection, the other end are connect with burner；
Wall temperature measurement point there are two being also set up on the igniting conduit.
Based on above-mentioned chemic ignition device, the chemic ignition method based on low temp fuel that the present invention also provides a kind of,
It is characterized in that the following steps are included:
Step 1) purges spacer medium and fills conduit:
Open fill duct entry valve, filling conduit outlet valve and automatic valve, close spacer medium container, open
Blow-off cock carries out the blowing of spacer medium filling conduit, and spacer medium filling conduit purging is clean, avoids having impurity in it；
Step 2) loads spacer medium:
Open spacer medium container, close blow-off cock, repeatedly interval open, close filling duct entry valve, to every
Spacer medium filling is carried out from medium charge conduit；
Step 3) monitors spacer medium loading:
Transparent pipe is observed while filling spacer medium, when having spacer medium in transparent pipe and emerge without bubble
When, close filling duct entry valve and filling conduit outlet valve；
Step 4) igniting:
Supply road isolating valve is opened, fuel supply is carried out, the isolation that low temp fuel squeezes in spacer medium filling conduit is situated between
Matter, and then rack igniting conduit, then igniting agent, spacer medium, low temp fuel sequentially enter in burner, igniting agent spontaneous combustion,
Successively ignite spacer medium, low temp fuel, and igniting is completed.
The beneficial effects of the present invention are:
1. the present invention is provided with isolated location among fuel supply unit and igniting unit, isolated location includes isolation
Medium charge conduit, spacer medium fill in conduit and are provided with spacer medium, and the freezing point of the spacer medium is less than the boiling point of fuel,
Its boiling point is greater than the freezing point of igniting agent, so that fuel is not directly contacted with igniting agent, then not will cause igniting agent icing, to keep away
The problem of supply system blocking causes loss of ignition is exempted from.
2. spacer medium filling conduit of the invention is connect by filling duct entry valve with spacer medium container, wherein
Filling duct entry valve not only can control the supply of spacer medium, but also can be prevented in ignition process high pressure fuel enter every
From media Containers.
3. being blown down on interface in the present invention and being provided with blow-off cock, it both ensure that the air pressure in conduit makes spacer medium not
Spacer medium is by blowing down interface outflow when becoming gaseous state, and prevent from loading spacer medium.
4. transparent pipe overlying one end is provided with automatic valve in the present invention, the other end is equipped with filling conduit outlet valve, automatically
Valve fills gas in conduit for emptying spacer medium in spacer medium stowing operation, while can keep pressure at transparent pipe, makes
Spacer medium remains liquid under the pressure, convenient for observation.Filling conduit outlet valve is manually-operated gate, bearing capacity
By force, so when low temp fuel enters work, transparent pipe can be protected not to be crushed.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of chemic ignition device based on low temp fuel of the invention.
In figure, 1- spacer medium fills conduit, and 2- fills duct entry valve, 3- spacer medium container, and 4- fills conduit
Outlet valve, 5- transparent pipe, 6- blow down interface, 61- blow-off cock, and 7- supplies road isolating valve, 8- automatic valve, 9- fuel supply list
Member, 10- igniting unit, 101- igniting conduit, 102- burner, 103- wall temperature measurement point, 11- pressure sensor, 12- temperature pass
Sensor, 13- isolated location.
Specific embodiment
To keep the purpose of the present invention, advantages and features clearer, below in conjunction with the drawings and specific embodiments to the present invention
A kind of chemic ignition device based on low temp fuel of proposition is described in further detail.According to following specific embodiment, originally
The advantages of invention and feature will become apparent from.It should be understood that attached drawing is all made of very simplified form and using non-accurate
Ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention；Secondly, the structure that attached drawing is shown is often
It is a part of practical structures.
Embodiment:
A kind of structure of the chemic ignition device based on low temp fuel of the present invention is as follows:
As shown in Figure 1, including fuel supply unit 9 and igniting unit 10；
It is characterized by also including isolated locations 13；Isolated location includes that spacer medium fills conduit 1, filling conduit enters
Mouth valve 2, spacer medium container 3, filling conduit outlet valve 4 and transparent pipe 5；Spacer medium fills the connection of 1 one end of conduit
Fuel supply unit 9, the other end connect igniting unit 10；Spacer medium fills on conduit 1 also by filling duct entry valve 2
It is connect with spacer medium container 3, is filled with spacer medium in spacer medium container 3；The spacer medium is propane, the freezing point of propane
Less than the boiling point of low temp fuel, boiling point is greater than the freezing point of igniting agent；Also gone out by filling conduit on spacer medium filling conduit 1
Mouth valve 4 connects transparent pipe 5, and the position of transparent pipe 5 is higher than spacer medium and fills conduit 1.
The spacer medium keeps apart low temp fuel and igniting agent as a result, and the two directly contact is avoided to lead to igniting agent knot
Ice, then supply system is blocked, and then lead to loss of ignition.
Preferably, it fills to be communicated between duct entry valve 2 and spacer medium container 3 and blows down interface 6, blow down interface 6
On be provided with blow-off cock 61, thus before loading propane can by blow down interface 6 will spacer medium fill conduit 1 in it is miscellaneous
Matter is blown down completely, and propane is refilled.
Preferably, automatic valve 8 is also connected on transparent pipe 5, automatic valve can bear certain pressure and spacer medium is protected
It holds as liquid, fills situation convenient for observing propane at transparent pipe；
Preferably, filling duct entry valve 2 and filling conduit outlet valve 4 are hand-operated valve, and hand-operated valve bearing capacity is big,
Therefore filling conduit outlet valve 4 can also prevent transparent pipe 5 to be crushed when low temp fuel enters work.
Preferably, it is additionally provided with pressure sensor 11 and temperature sensor 12 on spacer medium filling conduit 1, thus may be used
At any time monitoring spacer medium filling conduit 1 in pressure, in order to avoid pressure it is excessive rack igniting conduit 101, and can monitor at any time every
Guaranteeing it from the propane state in medium charge conduit 1 is liquid.
Preferably, it is additionally provided with supply road isolating valve 7 between fuel supply unit 9 and spacer medium filling conduit 1, for controlling
The work of fuel supply unit 9 processed.
Preferably, igniting unit includes igniting conduit 101, and igniting 101 one end of conduit and spacer medium filling conduit 1 connect
It connects, the other end is connect with burner 102；It also sets up on igniting conduit 101 there are two wall temperature measurement point 103, at any time monitors ignition
Agent does not freeze.
The specific ignition method of the present embodiment is as follows:
Step 1) purges spacer medium and fills conduit:
Open fill duct entry valve 2, filling conduit outlet valve 4 and automatic valve 8, close spacer medium container 3,
The blowing that blow-off cock 61 carries out spacer medium filling conduit 1 is opened, spacer medium filling conduit 1 is purged completely；
Step 2) loads spacer medium:
Spacer medium container 3 is opened, blow-off cock 61 is closed, repeatedly interval is opened, closes filling duct entry valve 2,
Spacer medium filling is carried out to spacer medium filling conduit 1；
Step 3) monitors spacer medium loading:
Transparent pipe 5 is observed while filling spacer medium, when having spacer medium in transparent pipe 5 and emit without bubble
When out, filling duct entry valve 2 and filling conduit outlet valve 4 are closed；
Step 4) igniting:
Supply road isolating valve 7 is opened, fuel supply is carried out, low temp fuel squeezes the isolation in spacer medium filling conduit 1
Medium, and then rack igniting conduit 101, then igniting agent, spacer medium, low temp fuel sequentially enter in burner 102, igniting
Agent spontaneous combustion, successively ignite spacer medium, low temp fuel, and igniting is completed.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (9)
1. a kind of chemic ignition device based on low temp fuel, including fuel supply unit (9) and igniting unit (10)；
It is characterized by also including isolated location (13)；
The isolated location include spacer medium filling conduit (1), filling duct entry valve (2), spacer medium container (3),
Fill conduit outlet valve (4) and transparent pipe (5)；
Spacer medium filling conduit (1) one end connection fuel supply unit (9), the other end connect igniting unit (10)；
It is connect by filling duct entry valve (2) with spacer medium container (3) on spacer medium filling conduit (1), institute
It states in spacer medium container (3) and is filled with spacer medium；
The freezing point of the spacer medium is less than the boiling point of low temp fuel, and the boiling point of spacer medium is greater than the freezing point of igniting agent；
Pass through filling conduit outlet valve (4) connection transparent pipe (5), the transparent pipe on spacer medium filling conduit (1)
(5) position is higher than spacer medium filling conduit (1).
2. a kind of chemic ignition device based on low temp fuel according to claim 1, it is characterised in that: the isolation is situated between
Matter is propane.
3. a kind of chemic ignition device based on low temp fuel according to claim 2, it is characterised in that: the filling is led
It is communicated between tube inlet valve (2) and spacer medium container (3) and blows down interface (6), be provided with and blow on the blowing interface (6)
Except switch (61).
4. a kind of chemic ignition device based on low temp fuel according to claim 3, it is characterised in that: the transparent pipe
(5) automatic valve (8) are also connected on.
5. a kind of chemic ignition device based on low temp fuel according to claim 1 or 2 or 3 or 4, it is characterised in that:
The filling duct entry valve (2) and filling conduit outlet valve (4) are hand-operated valve.
6. a kind of chemic ignition device based on low temp fuel according to claim 5, it is characterised in that: the isolation is situated between
Pressure sensor (11) and temperature sensor (12) are additionally provided in matter filling conduit (1).
7. a kind of chemic ignition device based on low temp fuel according to claim 6, it is characterised in that: the fuel supplies
It answers unit (9) and the spacer medium to fill and is additionally provided with supply road isolating valve (7) between conduit (1).
8. a kind of chemic ignition device based on low temp fuel according to claim 7, it is characterised in that: the igniting is single
First (10) include igniting conduit (101), and the igniting conduit (101) one end is connect with spacer medium filling conduit (1), separately
One end is connect with burner (102)；
There are two being also set up on the igniting conduit (101) wall temperature measurement point (103).
9. a kind of chemic ignition method based on low temp fuel, it is characterised in that:
Step 1) purges spacer medium and fills conduit:
Open fill duct entry valve (2), filling conduit outlet valve (4) and automatic valve (8), close spacer medium container
(3), the blowing that blow-off cock (61) carry out spacer medium filling conduit (1) is opened, spacer medium filling conduit (1) purging is dry
Only；
Step 2) loads spacer medium:
It opens spacer medium container (3), closes blow-off cock (61), repeatedly interval is opened, closes filling duct entry valve
(2), spacer medium filling is carried out to spacer medium filling conduit (1)；
Step 3) monitors spacer medium loading:
Transparent pipe (5) are observed while filling spacer medium, spacer medium is had in the transparent pipe (5) and is emitted without bubble
When out, filling duct entry valve (2) and filling conduit outlet valve (4) are closed；
Step 4) igniting:
Supply road isolating valve (7) is opened, fuel supply is carried out, low temp fuel squeezes the isolation in spacer medium filling conduit (1)
Medium, and then rack igniting conduit (101), then igniting agent, spacer medium, low temp fuel sequentially enter in burner (102),
Igniting agent spontaneous combustion, successively ignite spacer medium, low temp fuel, and igniting is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910667722.5A CN110407655B (en) | 2019-07-23 | 2019-07-23 | Low-temperature fuel-based chemical ignition device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910667722.5A CN110407655B (en) | 2019-07-23 | 2019-07-23 | Low-temperature fuel-based chemical ignition device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110407655A true CN110407655A (en) | 2019-11-05 |
| CN110407655B CN110407655B (en) | 2020-09-15 |
Family
ID=68362596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910667722.5A Active CN110407655B (en) | 2019-07-23 | 2019-07-23 | Low-temperature fuel-based chemical ignition device and method |
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| Country | Link |
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| CN (1) | CN110407655B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594094A (en) * | 2020-12-18 | 2021-04-02 | 西安航天动力研究所 | Engine starting ignition device and ignition method based on preinstalled intermediate medium |
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| RU2016145535A (en) * | 2016-11-21 | 2018-05-21 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-воздушных сил "Военно-воздушная академия имени профессора Н.Е. Жуковского и Ю.А. Гагарина" (г. Воронеж) Министерства обороны Российской Федерации | Pyrotechnic cartridge to stimulate precipitation |
| CN208950727U (en) * | 2018-08-31 | 2019-06-07 | 西安航天动力研究所 | A kind of small-sized plug-in type chemical ignitor |
| CN110030116A (en) * | 2018-12-13 | 2019-07-19 | 西安航天动力研究所 | One kind can single or multiple igniting suction half membrane type ignition modules of extruding and working method and igniting agent charging method |
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2019
- 2019-07-23 CN CN201910667722.5A patent/CN110407655B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119157A (en) * | 1994-05-31 | 1996-03-27 | 莫顿国际股份有限公司 | Fluid fueled air bag inflator |
| US6007097A (en) * | 1998-06-09 | 1999-12-28 | Autoliv Asp, Inc. | Flammable gas initiated pyrotechnic inflator |
| CN106525437A (en) * | 2016-09-09 | 2017-03-22 | 西安航天动力试验技术研究所 | Novel ignition system and ignition method |
| RU2016145535A (en) * | 2016-11-21 | 2018-05-21 | Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-воздушных сил "Военно-воздушная академия имени профессора Н.Е. Жуковского и Ю.А. Гагарина" (г. Воронеж) Министерства обороны Российской Федерации | Pyrotechnic cartridge to stimulate precipitation |
| CN107815330A (en) * | 2017-08-11 | 2018-03-20 | 新疆国利衡清洁能源科技有限公司 | Skid-mounted gas fuel ignition device and ignition method thereof |
| CN208950727U (en) * | 2018-08-31 | 2019-06-07 | 西安航天动力研究所 | A kind of small-sized plug-in type chemical ignitor |
| CN110030116A (en) * | 2018-12-13 | 2019-07-19 | 西安航天动力研究所 | One kind can single or multiple igniting suction half membrane type ignition modules of extruding and working method and igniting agent charging method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594094A (en) * | 2020-12-18 | 2021-04-02 | 西安航天动力研究所 | Engine starting ignition device and ignition method based on preinstalled intermediate medium |
| CN112594094B (en) * | 2020-12-18 | 2022-03-04 | 西安航天动力研究所 | Engine starting ignition device and ignition method based on preinstalled intermediate medium |
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| Publication number | Publication date |
|---|---|
| CN110407655B (en) | 2020-09-15 |
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