CN214741728U - Isolation control device suitable for attitude and orbit control power system - Google Patents
Isolation control device suitable for attitude and orbit control power system Download PDFInfo
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- CN214741728U CN214741728U CN202023240233.9U CN202023240233U CN214741728U CN 214741728 U CN214741728 U CN 214741728U CN 202023240233 U CN202023240233 U CN 202023240233U CN 214741728 U CN214741728 U CN 214741728U
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Abstract
The utility model provides an isolation control device suitable for attitude and orbit control driving system, which comprises a gas generating device, a gas storage shell, a capillary guide pipe and a gas explosion valve. During storage of the attitude and orbit control power system, the gas explosion valve is in a closed state to play an isolation role; when the attitude and orbit control power system is ready to work and needs to be isolated, the gas generating device is ignited to generate gas, the gas storage shell is used for equalizing the pressure of the generated gas, the gas is conveyed to each gas explosion valve through the capillary guide pipe, and the gas explosion valves are cut open to remove the isolation. The gas storage shell is designed with a certain volume, which not only plays a role of reducing the pressure peak of gas production of the gas production device, but also plays a role of ensuring that the pressure is not too low to influence the opening of other gas explosion valves after the individual gas explosion valve is opened; the capillary guide tube adopts a stainless steel seamless tube or a titanium capillary tube with smaller outer diameter, has better flexibility and is convenient to arrange in an attitude and orbit control power system, and has smaller weight and stronger bearing capacity.
Description
Technical Field
The utility model relates to an isolation control device suitable for attitude and orbit accuse driving system belongs to liquid engine technical field, is applicable to rocket and missile weapon's attitude and orbit accuse driving system, is particularly useful for the novel gas pressure boost driving system who does not have the high-pressure gas cylinder.
Background
During storage of the attitude and orbit control power system, the medium in the storage tank is separated from the pipeline by an isolation valve, before the system works, the isolation valve is opened by the control system, the medium flows into the pipeline, and the isolation valve and the control system jointly form an isolation control device. The existing isolating control device scheme of the attitude and orbit control power system comprises an 'nonelectric transmission system + an electric explosion valve' and a 'gas cylinder high-pressure gas + a gas explosion valve'. Due to the application of the novel gas pressurization system in the attitude and orbit control power system, a high-pressure gas cylinder in the system is cancelled, so that the gas explosion valve scheme cannot be used; the scheme of the non-electric explosion transmission system and the electric explosion valve is high in price and is not suitable for products with strict cost control.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem be: the attitude and orbit control power system isolation control device overcomes the defects of the prior art and solves the problem that a gas explosion valve cannot be used due to the fact that a high-pressure gas cylinder is not used, and the attitude and orbit control power system isolation control device which takes the gas explosion valve as an isolation valve is low in cost, light in weight and convenient to machine and manufacture is provided.
The technical solution of the utility model is that: an isolation control device suitable for an attitude and orbit control power system comprises a gas generating device, a gas storage shell, a capillary guide pipe and a gas explosion valve; the gas explosion valve is in a closed state during the storage period of the attitude and orbit control power system and is used for isolating the propellant in the storage tank of the attitude and orbit control power system and a pipeline at the downstream of the storage tank and preventing the propellant from leaking during the storage period after flowing into the pipeline; the attitude and orbit control power system is prepared to work, when the isolation needs to be removed, the gas production device is detonated to produce gas, the gas storage shell is used for equalizing the pressure of the produced gas, the gas is conveyed to each gas explosion valve through the capillary guide pipe, and the gas explosion valves are cut open to remove the isolation.
The gas storage shell is made of high-temperature alloy materials, such as heat-resistant alloy steel, nickel-based alloy or titanium alloy.
The capillary conduit is made of a stainless steel seamless tube or a titanium capillary tube, and the value range of the outer diameter is not more than 3 mm.
The gas explosion valve has an opening wedging function.
And metal sealing gaskets are adopted between the gas generating device and the gas storage shell and between the gas storage shell and the capillary guide pipe, and end face sealing pricks are formed on the surfaces of the metal sealing gaskets by pressing the metal sealing gaskets to realize sealing.
The number of the gas explosion valves can be adjusted according to the actual isolation requirement in the system, the number is not limited, and one capillary guide pipe is required to be added for gas supply when one gas explosion valve is added.
The propellant is hydrazine, unsym-dimethylhydrazine, methyl hydrazine, dinitrogen tetroxide or DT 3.
Compared with the prior art, the utility model beneficial effect be:
(1) the utility model discloses an adopt the gas drive gas that produces the gas device and explode the valve, replace high-pressure gas in the gas cylinder that uses originally, make the gas explode the valve and can use in the attitude and orbit accuse driving system of no gas cylinder.
(2) Compared with a non-electric transmission explosion system and an electric explosion valve, the capillary guide pipe structure used by the utility model has light weight and low price, and is more beneficial to the weight and cost control of a power system;
(3) the utility model discloses a capillary pipe connects, has good toughness, is convenient for arrange in attitude and orbit accuse driving system, has lighter weight to and stronger bearing capacity under the same wall thickness.
(4) The utility model discloses in only produce gas and be equipped with powder in the device, the security of storing is higher.
(5) The utility model discloses store the certain volume of gas shell design, both played and reduced the effect of producing the gas pressure peak of gas device, played simultaneously again and guaranteed that the individual gas explosion valve opens the back earlier, pressure can not cross the effect that other gas explosion valves were opened that low influences.
(6) The utility model discloses the gas explosion valve has opens the wedging function, prevents because the gas temperature reduces, and pressure drop leads to the gas explosion valve can't maintain the open mode.
Drawings
Fig. 1 is a schematic view of the isolation control device of the present invention.
Fig. 2 is a schematic view of a metal gasket seal.
Detailed Description
In order to make the solution of the present invention more clear, the present invention is further described below with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1, the isolation control device for an attitude and orbit control power system provided by the present invention comprises a gas generating device 1, a gas storage shell 2, a capillary conduit 3 and a gas explosion valve 4; the gas production device 1 is arranged on the gas storage shell 2, and all the gas produced after ignition enters the gas storage shell; one end of the capillary conduit is connected with the gas storage shell, and the other end of the capillary conduit is connected with the gas explosion valve to provide a conveying passage for fuel gas. The gas explosion valve 4 is in a closed state during the storage period of the attitude and orbit control power system and is used for isolating the propellant in the storage tank of the attitude and orbit control power system and a pipeline at the downstream of the storage tank and preventing the propellant from leaking during the storage period after flowing into the pipeline; the attitude and orbit control power system is prepared to work, when the isolation needs to be removed, the gas generating device 1 is detonated to generate gas, the gas storage shell 2 equalizes the pressure of the generated gas, the gas is conveyed to each gas explosion valve 4 through the capillary guide pipe 3, the gas explosion valves 4 are cut open, and the isolation is removed.
Preferably, the gas storage casing 2 is made of a high-temperature alloy material and has a certain volume. The internal volume of the gas production device is calculated according to the gas production capacity of the gas production device 1 and the number of the gas explosion valves, and the gas explosion valves are ensured to be supplied with fuel gas meeting the breaking pressure. The superalloy material may be a heat-resistant alloy steel, a nickel-based alloy, or a titanium alloy.
The volume of the fuel gas generated by the gas generating device is V1Pressure in the chamber of P1The containing cavity of each gas explosion valve is V2The number of the gas explosion valves in the isolation control device is x, the inner diameter of the capillary is about 1mm generally, and the inner cavity of the capillary can be ignored. When the opening pressure of the gas explosion valve is P2If the safe opening coefficient is a, the internal volume of the air reservoir housing can be calculated by the following equation.
V＝P1V1/(aP2)-xV2
The gas storage shell is designed with a certain volume, which not only plays a role of reducing the pressure peak of gas production of the gas production device, but also plays a role of ensuring that the pressure is not too low to influence the opening of other gas explosion valves after the individual gas explosion valve is opened.
Preferably, the capillary tube 3 is made of a stainless steel seamless tube or a titanium capillary tube, and the value range of the outer diameter is not more than 3mm, so that the capillary tube 3 has better bendable performance. The capillary guide pipe has good toughness, is convenient to arrange in an attitude and orbit control power system, and has light weight and strong bearing capacity under the same wall thickness.
Preferably, the gas explosion valve 4 has an opening wedging function. After the gas explosion valve 4 is cut, the cutter cannot be reset due to the fact that the gas pressure is reduced along with the temperature, and the stable opening state cannot be kept.
Preferably, as shown in fig. 2, metal sealing gaskets are adopted between the gas generating device 1 and the gas storage shell 2, and between the gas storage shell 2 and the capillary conduit 3, and end face sealing burrs are formed on the surfaces of the metal sealing gaskets by pressing the metal sealing gaskets to realize sealing, so that reliable sealing can be ensured under a high-temperature condition, and gas leakage caused by high temperature is prevented.
Preferably, the number of the gas explosion valves 4 can be adjusted according to the actual isolation requirement in the system, and no number limitation exists, and a capillary conduit 3 is required to be added for supplying gas for each gas explosion valve 4.
The isolation control device can be used for isolating commonly used propellants of various attitude and orbit control power systems, such as: hydrazine, unsym-dimethylhydrazine, methylhydrazine, dinitrogen tetroxide, DT 3.
The details not described in the present specification are well known to those skilled in the art.
Claims (7)
1. An isolation control device suitable for an attitude and orbit control power system is characterized in that: comprises a gas generating device (1), a gas storage shell (2), a capillary conduit (3) and a gas explosion valve (4); the gas explosion valve (4) is in a closed state during the storage period of the attitude and orbit control power system and is used for isolating the propellant in the storage tank of the attitude and orbit control power system and a pipeline downstream of the storage tank and preventing the propellant from leaking during the storage period after flowing into the pipeline; the attitude and orbit control power system is prepared to work, when the isolation needs to be removed, the gas generating device (1) is detonated to generate gas, the gas storage shell (2) equalizes the pressure of the generated gas, the gas is conveyed to each gas explosion valve (4) through the capillary guide pipe (3), and the gas explosion valves (4) are cut open to remove the isolation.
2. The isolation control device for the attitude and orbit control power system according to claim 1, wherein: the gas storage shell (2) is made of high-temperature alloy materials, such as heat-resistant alloy steel, nickel-based alloy or titanium alloy.
3. The isolation control device for the attitude and orbit control power system according to claim 1, wherein: the capillary guide pipe (3) is made of a stainless steel seamless pipe or a titanium capillary pipe, and the value range of the outer diameter is not more than 3 mm.
4. The isolation control device for the attitude and orbit control power system according to claim 1, wherein: the gas explosion valve (4) has an opening wedging function.
5. The isolation control device for the attitude and orbit control power system according to claim 1, wherein: a metal sealing gasket is adopted between the gas production device (1) and the gas storage shell (2) and between the gas storage shell (2) and the capillary guide pipe (3), and end face sealing pricks are formed on the surface of the metal sealing gasket by pressing the metal sealing gasket to realize sealing.
6. The isolation control device for the attitude and orbit control power system according to claim 1, wherein: the number of the gas explosion valves (4) can be adjusted according to the actual isolation requirement in the system, the number is not limited, and one capillary conduit (3) is required to be added for supplying gas when one gas explosion valve (4) is added.
7. The isolation control device for the attitude and orbit control power system according to claim 1, wherein: the propellant is hydrazine, unsym-dimethylhydrazine, methyl hydrazine, dinitrogen tetroxide or DT 3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023240233.9U CN214741728U (en) | 2020-12-29 | 2020-12-29 | Isolation control device suitable for attitude and orbit control power system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023240233.9U CN214741728U (en) | 2020-12-29 | 2020-12-29 | Isolation control device suitable for attitude and orbit control power system |
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| CN214741728U true CN214741728U (en) | 2021-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682220A (en) * | 2020-12-29 | 2021-04-20 | 西安航天动力研究所 | Isolation control device suitable for attitude and orbit control power system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682220A (en) * | 2020-12-29 | 2021-04-20 | 西安航天动力研究所 | Isolation control device suitable for attitude and orbit control power system |
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