CN215951119U - Combustible gas safe supply device - Google Patents
Combustible gas safe supply device Download PDFInfo
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- CN215951119U CN215951119U CN202120428685.5U CN202120428685U CN215951119U CN 215951119 U CN215951119 U CN 215951119U CN 202120428685 U CN202120428685 U CN 202120428685U CN 215951119 U CN215951119 U CN 215951119U
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- combustible gas
- way valve
- supply device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/34—Hydrogen distribution
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Abstract
The utility model discloses a combustible gas safe supply device, wherein an outlet of an inert gas bottle is connected with a first inlet of a three-way valve, and an outlet of the combustible gas bottle is connected with a second inlet of the three-way valve; the sealed tank comprises an end cover, a tank body, an air inlet pipe and an air outlet pipe, wherein the isolated liquid is filled in the tank body, the tank body is connected with the end cover to realize sealing, the air inlet pipe is fixedly arranged on the sealed tank, a first end is connected with an outlet of the three-way valve, a second end is inserted below the liquid level of the isolated liquid, the air outlet pipe is fixedly arranged on the sealed tank, the first end is positioned above the liquid level of the isolated liquid in the tank body, and the second end is communicated with the combustible gas elimination test equipment. The utility model adopts the design of low air inlet, high air outlet and insulating liquid to effectively prevent tempering and avoid explosion; the sealed tank is matched with the inert gas inlet pipeline and the combustible gas inlet pipeline, so that the mixing of combustible gas and air is avoided, the use safety is improved, the development cost is reduced, and the sealed tank is used for simulating a carrier rocket combustible gas discharge system and developing the research of a combustible gas elimination test.
Description
Technical Field
The utility model belongs to a combustible gas safe supply device, and particularly relates to a hydrogen safe supply device.
Background
The large carrier rocket and the space shuttle are launched by mostly adopting a liquid engine, combustible gas with certain concentration is gathered near a launching pad before launching, and the combustible gas is likely to explode to a certain extent, so that the combustible gas becomes a dangerous source when the rocket is launched.
In order to develop the research of the combustible gas elimination test, the research of the combustible gas elimination test by adopting the carrier rocket combustible gas discharge system is no longer practical. Therefore, it is urgently required to design a combustible gas supply device capable of simulating a combustible gas discharge system of a launch vehicle.
The existing combustible gas supply mostly adopts a gas cylinder for direct input, certain safety risk exists, mixed combustible gas is easily formed with oxygen in the air in the starting process, and when the concentration reaches a certain combustible gas explosion limit, explosion is easily caused by naked fire or static electricity and the like; meanwhile, in the process of closing the valve, tempering is easily caused to cause pipeline damage, and the long-time use of the valve brings explosion risks.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and provides a combustible gas safety supply device, which is used for safely simulating a combustible gas discharge system of a carrier rocket so as to develop a combustible gas elimination test research, wherein a gas inlet pipe and a gas outlet pipe of a seal tank are designed and matched with a corresponding inert gas inlet pipeline and a corresponding combustible gas inlet pipeline, so that the mixing of combustible gas and air is avoided, the use safety is improved, and the development cost of a combustible gas elimination device is reduced.
In order to realize the purpose of the utility model, the utility model provides the following technical scheme:
the utility model relates to a combustible gas safe supply device, which is characterized in that: comprises an inert gas bottle, a combustible gas bottle, a three-way valve and a seal pot;
the outlet of the inert gas bottle is connected with a first inlet of the three-way valve, and the outlet of the combustible gas bottle is connected with a second inlet of the three-way valve;
the sealed tank comprises an end cover, a tank body, an air inlet pipe and an air outlet pipe; isolation liquid is filled in the tank body, and the tank body is connected with the end cover to realize sealing; intake pipe fixed mounting is on the seal pot, and first end and three-way valve exit linkage, the second end insert below the isolated liquid level, outlet duct fixed mounting is on the seal pot, and first end is located jar internal portion isolated liquid level above position, and the second end accesss to combustible gas elimination test equipment.
Further, the combustible gas safety supply device also comprises a first pressure reducing valve and a second pressure reducing valve; an outlet of the inert gas bottle is connected with a first inlet of the three-way valve through a first pressure reducing valve and is used for controlling the flow rate of the inert gas; the combustible gas bottle is connected with a second inlet of the three-way valve through a second reducing valve and is used for controlling the flow rate of the combustible gas.
Further, the tank body is connected with the end cover through a bolt and a nut, and the tank body is sealed through a sealing ring.
Furthermore, the air inlet pipe and the air outlet pipe are welded on the end cover.
Further, the inert gas bottle and the first pressure reducing valve are connected through threads, and the combustible gas bottle and the second pressure reducing valve are connected through threads.
Furthermore, the first pressure reducing valve is connected with a first inlet of the three-way valve, the second pressure reducing valve is connected with a second inlet of the three-way valve, and an outlet of the three-way valve is connected with a first end of an air inlet pipe of the seal tank through a hose; the hose includes a rubber hose, a plastic hose or a metal hose.
Furthermore, the height of the isolation liquid is 2/3-3/4 of the height of the seal tank.
Further, the first end of the air inlet pipe is higher than the second end of the air outlet pipe.
Furthermore, a lug interface is designed on the side surface of the bottom of the sealing tank, so that the sealing tank is grounded through the lug and is used for eliminating friction static electricity generated in the combustible gas circulation process in time.
Furthermore, a second end of the gas outlet pipe is provided with a replaceable nozzle for controlling the spraying state of the combustible gas; the nozzle may comprise a single circular orifice type, flat type or multi-orifice type nozzle.
Furthermore, no physical or chemical reaction occurs among the inert gas, the combustible gas and the insulating liquid; the density of the inert gas in the inert gas bottle is greater than the density of the combustible gas in the combustible gas bottle.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the safe combustible gas supply device is safe, reliable and simple in structure. Air in the device is removed by adopting inert gas, and then combustible gas is filled and exhausted, so that the mixing of the combustible gas and the air is effectively avoided, and the safety of a combustible gas elimination test is improved.
(2) In the seal pot of the combustible gas safe supply device, the height of the connecting end of the air inlet pipe and the three-way valve is higher than that of the tail end outlet of the air outlet pipe, and the air inlet pipe and the three-way valve are matched with the isolation liquid, so that the tempering is effectively prevented, and the explosion caused by the tempering is avoided.
(3) The utility model relates to a combustible gas safe supply device, wherein a detachable nozzle is arranged at the outlet of an outlet pipe and used for controlling the spraying state of combustible gas, and the nozzle comprises various nozzles such as a single round hole type nozzle, a flat type nozzle or a porous type nozzle, and can be selected and replaced according to the actual test requirements.
Drawings
FIG. 1 is a schematic view of the working principle of a safe supply device for combustible gas according to the present invention;
fig. 2 is a schematic structural view of a seal pot of a safe combustible gas supply device according to the utility model.
Detailed Description
The features and advantages of the present invention will become more apparent and appreciated from the following detailed description of the utility model.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
A combustible gas safe supply device comprises an inert gas bottle 1, a combustible gas bottle 3, a three-way valve 5 and a seal tank 6;
an outlet of the inert gas bottle 1 is connected with a first inlet of a three-way valve 5, and an outlet of the combustible gas bottle 3 is connected with a second inlet of the three-way valve 5;
the sealed tank 6 comprises an end cover 7, a tank body 8, an air inlet pipe 9 and an air outlet pipe 10; the tank body 8 is internally filled with an isolation liquid 11, and the tank body 8 is connected with the end cover 7 to realize sealing; 9 fixed mounting of intake pipe is on seal pot 6, and first end and 5 exit linkage of three-way valve, the second end insert isolated liquid 11 below the liquid level, 10 fixed mounting of outlet duct are on seal pot 6, and first end is located jar 8 inside isolated liquid 11 above the liquid level position, and the second end accesss to combustible gas elimination test equipment.
Further, the safe combustible gas supply device also comprises a first pressure reducing valve 2 and a second pressure reducing valve 4; an outlet of the inert gas bottle 1 is connected with a first inlet of a three-way valve 5 through a first pressure reducing valve 2 and is used for controlling the flow rate of inert gas; the combustible gas bottle 3 is connected with a second inlet of the three-way valve 5 through a second pressure reducing valve 4 and is used for controlling the flow rate of the combustible gas.
Further, the tank body 8 and the end cover 7 are connected through bolts and nuts, and are sealed through sealing rings.
Further, the air inlet pipe 9 and the air outlet pipe 10 are welded on the end cover 7.
Further, the inert gas bottle 1 and the first pressure reducing valve 2, and the combustible gas bottle 3 and the second pressure reducing valve 4 are connected through threads.
Furthermore, the first pressure reducing valve 2 is connected with a first inlet of the three-way valve 5, the second pressure reducing valve 4 is connected with a second inlet of the three-way valve 5, and an outlet of the three-way valve 5 is connected with an air inlet pipe 9 of the seal tank 6 through hoses; the hose includes a rubber hose, a plastic hose or a metal hose.
Furthermore, the height of the insulating liquid 11 is 2/3-3/4 of the height of the sealing tank 6.
Further, the first end of the inlet pipe 9 is higher than the second end of the outlet pipe 10.
Further, the bottom of the seal tank 6 is grounded through a support lug and is used for eliminating friction static electricity generated by the circulation of combustible gas.
Further, a second end of the gas outlet pipe 10 is provided with a replaceable nozzle for controlling the spraying state of the combustible gas; the nozzle may comprise a single circular orifice type, flat type or multi-orifice type nozzle.
Furthermore, no physical or chemical reaction occurs among the inert gas, the combustible gas and the insulating liquid; the density of the inert gas in the inert gas bottle 1 is greater than that of the combustible gas in the combustible gas bottle 3.
Example 1
The explanation is given by using combustible gas as hydrogen, inert gas as nitrogen and isolation liquid as water.
The combustible gas bottle 3 is connected with a second reducing valve 4 through threads, and then is connected with a second inlet of a three-way valve 5 through a hose; the inert gas bottle 1 is connected with the first pressure reducing valve 2 through threads, and then is connected with the first inlet of the three-way valve 5 through a hose.
The tank body 8 is vertically placed, certain water is poured into the cavity of the tank body 8 to reach the height of 2/3-3/4, and then the end cover 7 is placed on the tank body 8 and connected through screws and nuts. An air inlet pipe 9 of the seal tank 6 is connected with the three-way valve 5 through a hose.
After the equipment finishes, open first relief pressure valve 2, open 5 first entrances of three-way valve, close 5 second entrances of three-way valve, let in nitrogen gas to 8 inner chambers of the jar body, until nitrogen gas escapes from outlet duct 10, after the air of the jar body 8 of row clear, close first relief pressure valve 2, open second relief pressure valve 4 again, open 5 second entrances of three-way valve, close 5 first entrances of three-way valve, let in hydrogen to 8 inner chambers of the jar body, until hydrogen escapes from outlet duct 10, discharge to combustible gas elimination test equipment and test.
After the combustible gas elimination test is finished, the second pressure reducing valve 4 is closed, the first pressure reducing valve 2 is opened, the first inlet of the three-way valve 5 is opened, the second inlet of the three-way valve 5 is closed, nitrogen is introduced into the inner cavity of the tank body 8 until the nitrogen escapes from the air outlet pipe 10, and the first pressure reducing valve 2 is closed after the hydrogen of the tank body 8 is completely discharged.
The utility model has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to be construed in a limiting sense. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present invention and its embodiments without departing from the spirit and scope of the present invention, which fall within the scope of the present invention. The scope of the utility model is defined by the appended claims.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (10)
1. A safe combustible gas supply device is characterized in that: comprises an inert gas bottle (1), a combustible gas bottle (3), a three-way valve (5) and a sealing tank (6);
the outlet of the inert gas bottle (1) is connected with a first inlet of a three-way valve (5), and the outlet of the combustible gas bottle (3) is connected with a second inlet of the three-way valve (5);
the sealed tank (6) comprises an end cover (7), a tank body (8), an air inlet pipe (9) and an air outlet pipe (10); the isolation liquid (11) is filled in the tank body (8), and the tank body (8) is connected with the end cover (7) to realize sealing; intake pipe (9) fixed mounting is on seal pot (6), first end and three-way valve (5) exit linkage, and the second end inserts below isolated liquid (11) liquid level, outlet duct (10) fixed mounting is on seal pot (6), and first end is located jar body (8) inside isolated liquid (11) position above the liquid level, and the second end accesss to combustible gas elimination test equipment.
2. A safety supply device for combustible gas according to claim 1, characterized by further comprising a first pressure reducing valve (2) and a second pressure reducing valve (4); an outlet of the inert gas bottle (1) is connected with a first inlet of a three-way valve (5) through a first reducing valve (2) and is used for controlling the flow rate of inert gas; the combustible gas bottle (3) is connected with a second inlet of the three-way valve (5) through a second reducing valve (4) and is used for controlling the flow rate of the combustible gas.
3. A safe supply device of combustible gas according to claim 1, characterized in that the connection between the tank (8) and the end cap (7) is made by bolts and nuts and sealed by a sealing ring.
4. A safe supply device of combustible gas according to claim 1, characterized in that the inlet pipe (9) and the outlet pipe (10) are welded to the end cap (7).
5. A safe supply device of combustible gas according to claim 2, characterized in that the threaded connections between the inert gas bottle (1) and the first pressure reducing valve (2) and between the combustible gas bottle (3) and the second pressure reducing valve (4).
6. A safe supply device of combustible gas according to claim 2, characterized in that the connection between the first pressure reducing valve (2) and the first inlet of the three-way valve (5), between the second pressure reducing valve (4) and the second inlet of the three-way valve (5), and between the outlet of the three-way valve (5) and the inlet pipe (9) of the seal pot (6) is made by flexible pipes; the hose includes a rubber hose, a plastic hose or a metal hose.
7. The safe combustible gas supply device according to claim 1, wherein the height of the insulating liquid (11) is 2/3-3/4 of the height of the sealed tank (6).
8. A safe supply device of combustible gas according to claim 1, characterized in that the first end of the inlet pipe (9) is higher than the second end of the outlet pipe (10).
9. A safe supply device of combustible gas according to claim 1, characterized in that the bottom of the seal pot (6) is grounded through a lug for eliminating frictional static electricity generated by the circulation of combustible gas.
10. A safe combustible gas supply device according to claim 1, wherein the second end of the gas outlet pipe (10) is provided with a removable nozzle for controlling the injection state of the combustible gas; the nozzle may comprise a single circular orifice type, flat type or multi-orifice type nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120428685.5U CN215951119U (en) | 2021-02-26 | 2021-02-26 | Combustible gas safe supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120428685.5U CN215951119U (en) | 2021-02-26 | 2021-02-26 | Combustible gas safe supply device |
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| Publication Number | Publication Date |
|---|---|
| CN215951119U true CN215951119U (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120428685.5U Active CN215951119U (en) | 2021-02-26 | 2021-02-26 | Combustible gas safe supply device |
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| CN (1) | CN215951119U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114609336A (en) * | 2022-03-09 | 2022-06-10 | 重庆钢铁股份有限公司 | Fire maintenance method for crude benzene tank |
| CN114963002A (en) * | 2022-05-31 | 2022-08-30 | 广东众大智能科技有限公司 | Explosion-proof treatment device for combustible tail gas |
| CN115044742A (en) * | 2022-05-12 | 2022-09-13 | 北京首钢股份有限公司 | RH refining device |
-
2021
- 2021-02-26 CN CN202120428685.5U patent/CN215951119U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114609336A (en) * | 2022-03-09 | 2022-06-10 | 重庆钢铁股份有限公司 | Fire maintenance method for crude benzene tank |
| CN115044742A (en) * | 2022-05-12 | 2022-09-13 | 北京首钢股份有限公司 | RH refining device |
| CN114963002A (en) * | 2022-05-31 | 2022-08-30 | 广东众大智能科技有限公司 | Explosion-proof treatment device for combustible tail gas |
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