CN105169583A - Fire extinguisher suitable for microgravity environment - Google Patents
Fire extinguisher suitable for microgravity environment Download PDFInfo
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- CN105169583A CN105169583A CN201510466903.3A CN201510466903A CN105169583A CN 105169583 A CN105169583 A CN 105169583A CN 201510466903 A CN201510466903 A CN 201510466903A CN 105169583 A CN105169583 A CN 105169583A
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- fire extinguisher
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Abstract
The invention discloses a fire extinguisher suitable for a microgravity environment. A diaphragm valve, a liquid port check valve, a gas port check valve, a guide rod, a leather bag and a bottleneck connecting piece are arranged. Fire extinguishing agents and extruded gas are stored in a physical isolation manner. When the fire extinguisher is started, the fire extinguishing agents are sprayed out of a spray nozzle under the action of the extruded gas, and the situation that the extruded gas is sprayed out at the same time is avoided. The spray nozzle is of a centrifugal structure, the fire extinguishing agents can be fully atomized through a spiral channel in the spray nozzle, and the fire extinguishing effect is improved.
Description
Technical field
The present invention relates to fire-fighting domain, particularly relate to a kind of fire extinguisher being applicable to microgravity environment.
Background technology
The ground middle extinguishing chemical that sprays fire extinguisher is stored in fire extinguisher storage tank with extruding gas and vapor permeation, and extinguishing chemical sinks to tank bottom under gravity, and when fire extinguisher is opened, extinguishing chemical is sprayed by siphon pipe and nozzle under extruding gas effect, reaches fire-extinguishing function concurrently.But space environment is due to its microgravity feature, if adopt the storing mode of ground fire-putting-out device, extinguishing chemical in storage tank and extruding gas and vapor permeation, liquid-vapor interface position, shape are uncertain, when fire extinguisher is opened, extinguishing chemical will spray from nozzle together with extruding gas, cause extruding gas consumption, cause extinguishing chemical injecting time to extend, reduce agent concentration, extinguishing chemical surplus ratio increases, and cannot reach extinguishing effect.Meanwhile, space sprays fire extinguisher the same with other space products, and require that weight and volume must be little, cause it to carry fire-fighting dose less, therefore, the fire extinguisher used under requiring microgravity environment should have very high fire-fighting efficiency.
Summary of the invention
In view of this, the present invention, for overcoming microgravity environment to extinguishing agent storage and a jet atomization difficult problem, provides a kind of fire extinguisher that efficiency is high, volume is little, quality is light that can use at microgravity environment.
In order to solve the problems of the technologies described above, the present invention is achieved in that
Be applicable to a fire extinguisher for microgravity environment, comprise pressure handle, carrying handle, push rod, nozzle, storage tank, diaphragm valve, liquid mouth check valve, gas port check valve, diversion rod, leather bag (10) and bottleneck connector;
Described leather bag is placed in storage tank, and for splendid attire extinguishing chemical, the outer circumference surface of the openend of leather bag is fixed on the bottleneck inwall of storage tank; Described bottleneck connector is fixed on the bottleneck of storage tank; The centre of bottleneck connector has through hole, and the upper diameter of through hole is less than lower diameter; Described diaphragm valve is sealed in the through hole upper end on described bottleneck connector top; Described liquid mouth check valve is placed in the through hole of bottleneck connector bottom, and the steel ball of liquid mouth check valve is against the through hole lower end on described bottleneck connector top by spring;
It is inner that described diversion rod is placed in described leather bag, and one end is connected with the through hole lower end of described bottleneck connector bottom;
The lower end of described push rod is provided with piston cutter, and the diaphragm of aligning film plate valve;
Described gas port check valve is arranged on storage tank outer wall, as the filling channel of storage tank.
Preferably, the end of described piston cutter has aperture, the periphery of push rod also has the aperture with the aperture UNICOM of piston cutter.
Preferably, the inwall of described nozzle is processed with spiral helicine groove.
Preferably, described diaphragm valve adopts metallic membrane structure.
Preferably, described diversion rod sidewall is processed with pod apertures.
Preferably, described pod apertures is uniform on diversion rod sidewall, and diameter is Φ 2mm.
Preferably, described fire extinguisher opening force is 120N ~ 150N.
Preferably, described storage tank maximum working pressure (MWP) is 1.0MPa.
Preferably, the quality of described leather bag splendid attire extinguishing chemical is 1.10kg ~ 1.15kg.
Preferably, described fire extinguisher gross weight is 2.2kg ± 0.1kg.
The present invention has following beneficial effect:
(1) fire extinguisher being applicable to microgravity environment of the present invention is the fire extinguisher used under the domestic space of development first microgravity environment, without the reference technology under the same terms.Existing ground fire-putting-out device adopts extinguishing chemical and extruding gas and vapor permeation storing mode, and cannot realize gas-liquid separation in micro-gravity conditions, and ground sprays fire extinguisher, nozzle is single flow structure, cannot realize atomization in micro-gravity conditions.Fire extinguisher under the microgravity environment of this invention designs for space microgravity environment feature specially, extinguishing chemical and extruding gas adopt physical isolation mode to store, when fire extinguisher is opened, extinguishing chemical from nozzle ejection, does not have extruding gas and sprays situation simultaneously under the effect of extruding gas.Nozzle adopts centrifugal structure, by the helical duct of nozzle interior, extinguishing chemical is fully atomized, and improves extinguishing effect.
Accompanying drawing explanation
Fig. 1 is the extinguisher structure schematic diagram being applicable to microgravity environment of the present invention.
1-pressure handle, 2-carrying handle, 3-push rod, 31-piston cutter, 4-nozzle, 5-diaphragm valve, 6-liquid mouth check valve, 7-gas port check valve, 8-storage tank, 9-diversion rod, 10-leather bag, 11-extinguishing chemical, 12-extrude gas, 13-bottleneck connector.
Detailed description of the invention
To develop simultaneously embodiment below in conjunction with accompanying drawing, describe the present invention.
As shown in Figure 1, for a kind of fire extinguisher being applicable to microgravity environment of the present invention, by pressure handle 1, carrying handle 2, push rod 3, nozzle 4, diaphragm valve 5, liquid mouth check valve 6, gas port check valve 7, storage tank 8, diversion rod 9, leather bag 10, extinguishing chemical 11 and bottleneck connector 13.
Wherein, the annexation of pressure handle 1, carrying handle 2, push rod 3 and nozzle 4 is identical with existing fire extinguisher, and its operation principle is also consistent.Unlike, the present invention is provided with leather bag 10, is placed in storage tank 8, and for splendid attire extinguishing chemical 11, the openend outer circumference surface of leather bag 10 is fixed on the bottleneck inwall of storage tank 8; Bottleneck connector 13 is fixed on the bottleneck of storage tank 8; The centre of bottleneck connector 13 has through hole, and the upper diameter of through hole is less than lower diameter; Diaphragm valve 5 is sealed in the through hole upper end on top; Liquid mouth check valve 6 is placed in the through hole of bottom, and the steel ball of liquid mouth check valve 6 is against described upper through-hole lower end by spring.It is inner that diversion rod 9 is placed in described leather bag 10, and one end is connected with the through hole lower end of described bottom.The lower end of push rod 3 is provided with piston cutter 31, and the diaphragm of aligning film plate valve 5, after pressing pressure handle 1, described piston cutter 31 punctures the diaphragm of diaphragm valve 5.Gas port check valve 7 is arranged on storage tank 8 outer wall, for inflating storage tank 8.
Existing fire extinguisher, extinguishing chemical 11 flows to nozzle 4 from the surrounding space of push rod 3, in the present invention, the end of piston cutter 31 has aperture, the periphery of push rod 3 also has the aperture with the aperture UNICOM of piston cutter 31, so, extinguishing chemical 11 not only flows to nozzle 4 by the surrounding space of push rod 3, also nozzle 4 can be flowed to by the aperture of UNICOM, can augmented flow, improve fire-fighting efficiency.
In the present invention, diaphragm valve 5 adopts metallic membrane structure.Fire extinguisher opening force is 120N ~ 150N.Storage tank 8 maximum working pressure (MWP) is 1.0MPa.Leather bag 10 can the quality of splendid attire extinguishing chemical 11 be 1.10kg ~ 1.15kg.Fire extinguisher gross weight is (2.2 ± 0.1) kg.
Space between storage tank 8 and leather bag 10 is filled by gas port check valve 7 and is extruded gas 12, leather bag 10 is by extinguishing chemical and extruding gas 12 physical isolation. when pressure pressure handle 1, push rod 3 moves downward, piston cutter 31 punctures diaphragm valve 5, continues to move downward, through the upper through-hole of bottleneck connector 13, after backing down the liquid mouth check valve 6 in lower through-hole, the extinguishing chemical 11 be sealed in leather bag 10 flows to nozzle 4 by diversion rod 9, sprays after the rotary-atomizing of the helical groove of nozzle 4 inwall, implements fire extinguishing.In order to improve the water conservancy diversion effect of diversion rod 9, the present invention has aperture on diversion rod 9 sidewall, and when extruding gas 12 and acting on leather bag, the bottom of diversion rod 9 has and sidewall aperture all can enter extinguishing chemical 11, improves flow further, improves fire-fighting efficiency.The medium and small hole number of the present embodiment is 30, and diameter is Φ 2mm.When extinguishing operation completes, unclamp pressure handle 1, push rod 3 moves upward under the action of the spring, liquid mouth check valve 6 is closed, is sealed in leather bag 10 by remaining extinguishing chemical 11, when fire occurs again, can continue to use this fire extinguisher.
Fire extinguisher adopts bladder propellant tank structure, utilize the leather bag 10 in storage tank 8 that extinguishing chemical 11 and extruding gas 12 are carried out physical isolation, when fire extinguisher is opened, leather bag 10 shrinks under the effect of extruding gas 12 pressure, the extinguishing chemical 11 in leather bag 10 is caused to be discharged by diversion rod 9 and nozzle 4, after guaranteeing that fire extinguisher is opened, what nozzle was discharged is the extinguishing chemical 11 of not entrained gas, course of injection is only single-phase injection, very big difference is there is with the ground injection that sprays fire extinguisher, ground with nozzle 4 spray single-phase liquid time, the jet of nozzle is in " boundling " shape, without being obviously atomized sign, do not reach extinguishment requirement.
The single-phase nozzle 4 that the fire extinguisher that uses under microgravity environment adopts mainly utilizes pressure effect to make liquid by obtaining larger kinetic energy during nozzle, and after jet, liquid film and surrounding air exist very high speed difference, formation severe friction and being torn as particulate.Inner at nozzle 4, be designed with rotating channel, when fire extinguisher is opened, under extinguishing chemical 11 rotates channeling nozzle 4 in, make liquid by time generation rotation to form larger centrifugal action, can atomizing effect be strengthened.
The using method of fire extinguisher is as follows:
(1) hold fire extinguisher carrying handle 2 and pressure handle 1 with one, the forefinger of another hand is pierced into fire extinguisher safety plug finger ring, extract safety plug, then finger is extracted out from safety plug finger ring;
(2) after spacefarer arrives fire position, make fire extinguisher nozzle 4 point to fire position, then press fire extinguisher pressure handle 1, aim at fire position spray fire extinguishing agent;
(3) when fire is extinguished or extinguishing chemical exhausts, spacefarer unclamps fire extinguisher pressure handle 1;
(4) safety plug is inserted pin-and-hole.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. one kind is applicable to the fire extinguisher of microgravity environment, comprise pressure handle (1), carrying handle (2), push rod (3), nozzle (4) and storage tank (8), it is characterized in that, also comprise diaphragm valve (5), liquid mouth check valve (6), gas port check valve (7), diversion rod (9), leather bag (10) and bottleneck connector (13);
Described leather bag (10) is placed in storage tank (8), and for splendid attire extinguishing chemical (11), the outer circumference surface of the openend of leather bag (10) is fixed on the bottleneck inwall of storage tank (8); Described bottleneck connector (13) is fixed on the bottleneck of storage tank (8); The centre of bottleneck connector (13) has through hole, and the upper diameter of through hole is less than lower diameter; Described diaphragm valve (5) is sealed in the through hole upper end on described bottleneck connector (13) top; Described liquid mouth check valve (6) is placed in the through hole of bottleneck connector (13) bottom, and the steel ball of liquid mouth check valve (6) is against the through hole lower end on described bottleneck connector (13) top by spring;
It is inner that described diversion rod (9) is placed in described leather bag (10), and one end is connected with the through hole lower end of described bottleneck connector (13) bottom;
The lower end of described push rod (3) is provided with piston cutter (31), and the diaphragm of aligning film plate valve (5);
Described gas port check valve (7) is arranged on storage tank (8) outer wall, as the filling channel of storage tank (8).
2. a kind of fire extinguisher being applicable to microgravity environment as claimed in claim 1, it is characterized in that, the end of described piston cutter (31) has aperture, the periphery of push rod (3) also has the aperture with the aperture UNICOM of piston cutter (31).
3. a kind of fire extinguisher being applicable to microgravity environment according to claim 1, is characterized in that: the inwall of described nozzle (4) is processed with spiral helicine groove.
4. a kind of fire extinguisher being applicable to microgravity environment according to claim 1, is characterized in that: described diaphragm valve (5) adopts metallic membrane structure.
5. a kind of fire extinguisher being applicable to microgravity environment according to claim 1, is characterized in that: described diversion rod (9) sidewall is processed with pod apertures.
6. a kind of fire extinguisher being applicable to microgravity environment according to claim 5, it is characterized in that: described pod apertures is uniform on diversion rod (9) sidewall, diameter is Φ 2mm.
7. a kind of fire extinguisher being applicable to microgravity environment according to claim 1, is characterized in that: described fire extinguisher opening force is 120N ~ 150N.
8. a kind of fire extinguisher being applicable to microgravity environment according to claim 1, is characterized in that: described storage tank (8) maximum working pressure (MWP) is 1.0MPa.
9. a kind of fire extinguisher being applicable to microgravity environment according to claim 1, is characterized in that: the quality of described leather bag (10) splendid attire extinguishing chemical (11) is 1.10kg ~ 1.15kg.
10. a kind of fire extinguisher being applicable to microgravity environment according to claim 1, is characterized in that: described fire extinguisher gross weight is 2.2kg ± 0.1kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510466903.3A CN105169583A (en) | 2015-08-03 | 2015-08-03 | Fire extinguisher suitable for microgravity environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510466903.3A CN105169583A (en) | 2015-08-03 | 2015-08-03 | Fire extinguisher suitable for microgravity environment |
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| CN105169583A true CN105169583A (en) | 2015-12-23 |
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| CN201510466903.3A Pending CN105169583A (en) | 2015-08-03 | 2015-08-03 | Fire extinguisher suitable for microgravity environment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105966781A (en) * | 2016-07-06 | 2016-09-28 | 中国人民解放军第七五医院 | Semi-automatic mixed two-component spray tank |
| CN106975182A (en) * | 2017-05-03 | 2017-07-25 | 上海金洛海洋工程有限公司 | Automatic security bottle system and its autocontrol method |
| CN110327567A (en) * | 2019-08-02 | 2019-10-15 | 湖北及安盾消防科技有限公司 | Capsule self-pressing liquid medicine fire extinguisher |
| CN112933465A (en) * | 2021-01-25 | 2021-06-11 | 金陵科技学院 | Novel automatic fire extinguishing device for automobile and fire extinguishing method thereof |
| CN113287961A (en) * | 2021-05-31 | 2021-08-24 | 中国船舶重工集团公司第七一九研究所 | Leather bag type toilet storage container |
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| GB2206671B (en) * | 1987-06-26 | 1991-03-13 | Metalrax Group Plc | Valves for fire extinguishers |
| RU2158153C1 (en) * | 1999-07-13 | 2000-10-27 | Открытое акционерное общество "Ракетно-космическая корпорация "Энергия" им. С.П. Королева" | Hand-held fire-suppressor |
| US20050040253A1 (en) * | 2003-08-21 | 2005-02-24 | Thornton David L. | Pressurized accumulator tank for flowable materials |
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| GB2206671B (en) * | 1987-06-26 | 1991-03-13 | Metalrax Group Plc | Valves for fire extinguishers |
| RU2158153C1 (en) * | 1999-07-13 | 2000-10-27 | Открытое акционерное общество "Ракетно-космическая корпорация "Энергия" им. С.П. Королева" | Hand-held fire-suppressor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105966781A (en) * | 2016-07-06 | 2016-09-28 | 中国人民解放军第七五医院 | Semi-automatic mixed two-component spray tank |
| CN106975182A (en) * | 2017-05-03 | 2017-07-25 | 上海金洛海洋工程有限公司 | Automatic security bottle system and its autocontrol method |
| US12005282B2 (en) | 2017-05-03 | 2024-06-11 | Shanghai Kino Safety Equipment Limited | Automatic safeguard bottle system and automatic control method therefor |
| CN110327567A (en) * | 2019-08-02 | 2019-10-15 | 湖北及安盾消防科技有限公司 | Capsule self-pressing liquid medicine fire extinguisher |
| CN112933465A (en) * | 2021-01-25 | 2021-06-11 | 金陵科技学院 | Novel automatic fire extinguishing device for automobile and fire extinguishing method thereof |
| CN113287961A (en) * | 2021-05-31 | 2021-08-24 | 中国船舶重工集团公司第七一九研究所 | Leather bag type toilet storage container |
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Application publication date: 20151223 |
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