阅读说明：本技术 一种无电非储压式灭火系统 (Electroless non-pressure storage type fire extinguishing system ) 是由 秦沛文 鲁锐华 张全学 郭春亮 黄昌龙 李铁斌 闫立帆 李颖 于 2020-06-10 设计创作，主要内容包括：本发明属于消防技术领域,提供了一种无电非储压式自动灭火系统,它包括感温气源(1)、气动管路(2)、气动启动器(3)、气体发生器(4)、灭火剂储罐(5)和喷淋管路(6)；所述感温气源、气动管路、气动启动器、气体发生器,依次连接；所述气体发生器与灭火剂储罐的第一口部连通,所述喷淋管路与灭火剂储罐的第二口部连通；所述感温气源用于感知环境温度并产生气体；所述气动管路用于将感温气源产生的气体输送至气动启动器并通过输送的气体压力触发动启动器动作；所述气动启动器用于在动作时点燃气体发生器；所述气体发生器用于产生气体驱动灭火剂储罐内的灭火介质经喷淋管路喷出。(The invention belongs to the technical field of fire fighting, and provides a non-electric non-pressure storage type automatic fire extinguishing system which comprises a temperature sensing air source (1), a pneumatic pipeline (2), a pneumatic starter (3), a gas generator (4), a fire extinguishing agent storage tank (5) and a spraying pipeline (6); the temperature sensing gas source, the pneumatic pipeline, the pneumatic starter and the gas generator are sequentially connected; the gas generator is communicated with a first opening of the fire extinguishing agent storage tank, and the spraying pipeline is communicated with a second opening of the fire extinguishing agent storage tank; the temperature sensing gas source is used for sensing the ambient temperature and generating gas; the pneumatic pipeline is used for conveying gas generated by the temperature sensing gas source to the pneumatic starter and triggering the starter to act through the pressure of the conveyed gas; the pneumatic starter is used for igniting the gas generator at the action time point; the gas generator is used for generating gas to drive the fire extinguishing medium in the fire extinguishing agent storage tank to be sprayed out through the spraying pipeline.)

1. The utility model provides a no electricity non-pressure storage formula automatic fire extinguishing system which characterized in that: the fire extinguishing system comprises a temperature sensing gas source (1), a pneumatic pipeline (2), a pneumatic starter (3), a gas generator (4), a fire extinguishing agent storage tank (5) and a spraying pipeline (6);

the temperature sensing gas source (1), the pneumatic pipeline (2), the pneumatic starter (3) and the gas generator (4) are sequentially connected;

the fire suppressant storage tank (5) comprises a first mouth and a second mouth; the gas generator (4) is communicated with a first opening of the fire extinguishing agent storage tank (5), and the spraying pipeline (6) is communicated with a second opening of the fire extinguishing agent storage tank (5);

the temperature sensing gas source (1) is used for sensing the ambient temperature and generating gas;

the pneumatic pipeline (2) is used for conveying gas generated by the temperature sensing gas source (1) to the pneumatic starter (3) and triggering the pneumatic starter (3) to act through the conveyed gas pressure;

the pneumatic starter (3) is used for igniting the gas generator (4) during action;

the gas generator (4) is used for generating gas to drive the fire extinguishing medium in the fire extinguishing agent storage tank (5) to be sprayed out through the spraying pipeline (6).

2. The electroless non-pressure storage type automatic fire extinguishing system according to claim 1, wherein: the temperature-sensing gas source (1) comprises a fire-fighting temperature-sensing glass bulb (11), a first spring (12), a first firing pin (13), a first needle-piercing fire cap (14), a first composite solid propellant (15) and a linkage mechanism (16);

the first composite solid propellant (15) is packaged in the shell, the first composite solid propellant (15) at the bottom of the shell is connected with one end of the first acupuncture cap (14) to be ignited by the first acupuncture cap (14), and the top of the shell is provided with an opening communicated with the pneumatic pipeline (2);

the first firing pin (13) is arranged at the other end of the first needle-puncturing cap (14) and is away from the bottom end of the first needle-puncturing cap (14) by a preset distance, and the first firing pin (13) impacts the first needle-puncturing cap (14) through stroke movement to enable the first needle-puncturing cap (14) to generate flame; the first needle-piercing cap (14) igniting a first composite solid propellant (15) in the housing upon impact by the first firing pin (13);

the linkage mechanism (16) is connected with the first firing pin (13), the fire-fighting temperature-sensing glass bulb (11) and the first spring (12), the linkage mechanism (16) enables the first spring (12) to form a compression force when the fire-fighting temperature-sensing glass bulb (11) is connected in the connecting direction of the fire-fighting temperature-sensing glass bulb (11), when the fire-fighting temperature-sensing glass bulb (11) is subjected to temperature sensing breakage, the pressure of the first spring (12) is released, the linkage mechanism (16) is driven to move, and therefore the linkage mechanism (16) drives the first firing pin (13) connected with the linkage mechanism to move to form an impact force on the first acupuncture cap (14).

3. The electroless non-pressure storage type automatic fire extinguishing system according to claim 2, wherein: the stiffness coefficient of the spring (12) is 2-15N/mm, and the compressed height is 5-20 mm; the nominal starting temperature of the fire-fighting temperature-sensing glass bulb (11) is any one of 93 ℃, 141 ℃ or 182 ℃.

4. The electroless non-pressure storage type automatic fire extinguishing system according to claim 2, wherein: the first composite solid propellant (15) comprises a binder, a curing agent, an oxidizer and a temperature reducer; the adhesive is hydroxyl-terminated polybutadiene and/or carboxyl-terminated polybutadiene, and the content of the adhesive is 10-40% by mass percent; the curing agent is toluene diisocyanate and/or isophorone diisocyanate, and the content is 0.5-5% by mass percent; the oxidant is ammonium perchlorate and/or ammonium nitrate, and the content is 20-60% by mass percent; the cooling agent is azodicarbonamide, and the content of the cooling agent is 20-60% by mass percent.

5. The electroless non-pressure storage type automatic fire extinguishing system according to claim 1, wherein: the pneumatic starter (3) comprises a piston (31), a connecting rod (32), a pulling pin (33), a second spring (34), a second needle puncturing cap (35), a second firing pin (36) and a pressing cap (37);

the moving end face of the piston (31) faces the air outlet of the pneumatic pipeline (2) so as to receive the gas pressure from the pneumatic pipeline (2) and move under the impact of the gas pressure;

one end of the connecting rod (32) is fixedly connected with the piston (31) to move along with the piston, and the other end of the connecting rod is connected with the pull pin (33);

the pulling pin (33) is parallel to the movement direction of the piston (31), one end of the pulling pin is connected with the connecting rod (32), and the other end of the pulling pin is connected with the second firing pin (36);

the second firing pin (36) comprises a base and a spring sleeve rod on the base, the tip end of the firing pin is arranged on the outer side of the base, the inner side of the base is connected with the spring sleeve rod, a transverse through hole is formed in the end part, far away from the base, of the spring sleeve rod and is connected with the pull pin (33), the outer peripheral size of the base is larger than that of the second spring (35), and the outer peripheral size of the spring sleeve rod is smaller than that of the inner periphery of the second spring (35);

the pressing cap (37) is of a hollow structure with two open ends, the outer circumference size of the opening at one end is positioned between the outer circumference size of the second spring (34) and the outer circumference size of the spring sleeve rod, and the outer circumference size of the opening at the other end is larger than the outer circumference size of the base of the second firing pin (36) and is matched with the outer circumference size of the second firing pin cap (35);

the outer side of a spring sleeve rod of the second firing pin (36) is sleeved with a second spring (34), and when the second spring penetrates through the hollow part of the pressing cap (38) to enable a transverse through hole of the second spring to be connected with the pulling pin (33), the second spring (34) is fixed in the pressing cap (37) in a compressed state;

the second needle puncturing cap (35) is fixed at one end, close to the base of the second firing pin (36), of the pressing cap (37), and the distance between the second needle puncturing cap and the needle hitting tip of the base of the second firing pin (36) is not larger than the compressed height of the second spring (34); the ignition end of the second acupuncture cap (35) is connected with the gas generator (4).

6. The electroless non-pressure storage type automatic fire extinguishing system according to claim 5, wherein: the cross-sectional area of the piston (31) is not less than 4 times the cross-sectional ventilation area of the pneumatic pipeline (2).

7. The electroless non-pressure storage type automatic fire extinguishing system according to claim 1, wherein: the gas generator (4) comprises a second composite solid propellant comprising a binder, a curing agent, an oxidizer, a temperature reducing agent and a stabilizer;

the adhesive is one or a combination of polyethylene glycol, polyethylene adipate and polycaprolactone, and the content is 10-40% by mass percent;

the curing agent is toluene diisocyanate and/or isophorone diisocyanate, and the content is 0.5-5% by mass percent;

the oxidant is ammonium perchlorate and/or ammonium nitrate, and the content is 20-60% by mass percent;

the cooling agent is azodicarbonamide and/or dihydroxy glyoxime, and the content is 20-60% by mass percent;

the stabilizer is 2-nitrodiphenylamine and/or 4-nitroaniline, and the content is 0.5-5% by mass percent.

8. The electroless non-pressure storage type automatic fire extinguishing system according to claim 1, wherein: the outer diameter of the pneumatic pipeline (2) is not more than 6mm, the inner diameter of the pneumatic pipeline is not more than 4mm, and the pneumatic pipeline (2) is connected with the temperature sensing air source (1) and/or the pneumatic starter (3) in a clamping sleeve connection and/or welding mode.

9. The electroless non-pressure storage type automatic fire extinguishing system according to claim 1, wherein: the pneumatic starter (3) is arranged on the outer side of the first port of the fire extinguishing agent storage tank (5), and the gas generator (4) is arranged on the inner side of the first port of the fire extinguishing agent storage tank (5).

10. The electroless non-pressure storage type automatic fire extinguishing system according to claim 1, wherein: the pneumatic starter (3) and the gas generator (4) are arranged outside the first port of the fire extinguishing agent storage tank (5), and the port of the gas generator (4) is communicated with the first port of the fire extinguishing agent storage tank (5).

Technical Field

The invention belongs to the field of fire fighting, and particularly relates to a non-electric non-pressure storage type automatic fire extinguishing system.

Background

The feedback link of the existing fire extinguishing system in the fire fighting field needs to be supported by power supply, such as ultraviolet, infrared and smoke sensors, and the fire extinguishing medium is stored by adopting a pressure storage type fire extinguishing agent bottle, such as a heptafluoropropane gas bottle and an inert gas bottle, but some problems of the existing fire extinguishing system are exposed through a large number of application cases, for example:

(1) the electrical feedback system fails in the event of a power outage due to a fire first burning out the power supply.

(2) The heptafluoropropane bottle of the heptafluoropropane fire extinguishing system has the condition of pressure reduction when being stored for a long time, needs to be overhauled and maintained for about 5 years, and the high-pressure gas bottle is a dangerous source.

(3) The fire extinguishing system using the built-in or external carbon dioxide cylinder as the fire extinguishing agent spraying power source has the condition of incapability of working due to phase change in winter at low temperature, and is not suitable for being used in the field at low temperature.

(4) A temperature-sensitive glass bubble-started spraying pipe network system used in an underground parking lot has the problem of insufficient pressure in a pipeline or water leakage.

(5) Fusible alloys such as wood alloy and the like are used as the temperature sensing element, and meanwhile, a spring pull type starting mode is adopted to start a fire extinguishing system of the fire extinguisher, such as a kitchen automatic fire extinguishing system, so that the fire response is slow.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a non-electric non-pressure storage type fire extinguishing system which gets rid of the technical defects of power supply restriction and long transmission distance of feedback signals, can be used in a field low-temperature environment, can be free of maintenance for a long time, and can be widely used for fire extinguishing of warehouses, power equipment, ships, engineering vehicles and the like.

The technical scheme of the invention is as follows: a non-electric non-pressure storage type automatic fire extinguishing system comprises a temperature sensing air source, a pneumatic pipeline, a pneumatic starter, a gas generator, a fire extinguishing agent storage tank and a spraying pipeline; the temperature sensing gas source, the pneumatic pipeline, the pneumatic starter and the gas generator are sequentially connected; the fire extinguishing agent storage tank comprises a first opening and a second opening, the gas generator is communicated with the first opening of the fire extinguishing agent storage tank, and the spraying pipeline is communicated with the second opening of the fire extinguishing agent storage tank; the temperature sensing gas source is used for sensing the ambient temperature and generating gas; the pneumatic pipeline is used for conveying gas generated by the temperature sensing gas source to the pneumatic starter and triggering the pneumatic starter to act through the pressure of the conveyed gas; the pneumatic starter is used for igniting the gas generator at the action time point; the gas generator is used for generating gas to drive the fire extinguishing medium in the fire extinguishing agent storage tank to be sprayed out through the spraying pipeline.

Furthermore, the temperature-sensing gas source comprises a fire-fighting temperature-sensing glass bulb, a first spring, a first firing pin, a first needle-piercing cap, a first composite solid propellant and a linkage mechanism; the first composite solid propellant is packaged in the shell, the first composite solid propellant at the bottom of the shell is connected with one end of the first needle-pricking cap to be ignited by the first needle-pricking cap, and the top of the shell is provided with an opening communicated with the pneumatic pipeline; the first firing pin is arranged at the other end of the first needle-pricking cap and is at a preset distance from the bottom end of the first needle-pricking cap, the first firing pin impacts the first needle-pricking cap through stroke movement to enable the first needle-pricking cap to generate flame, and the first needle-pricking cap ignites a first composite solid propellant in the shell when the first firing pin impacts; the linkage mechanism is connected with the first firing pin, the fire-fighting temperature-sensing glass bulb and the first spring, the linkage mechanism enables the first spring to form a compression force when the fire-fighting temperature-sensing glass bulb is connected in the connecting direction of the linkage mechanism and the fire-fighting temperature-sensing glass bulb, when the fire-fighting temperature-sensing glass bulb is subjected to temperature sensing and breakage, the pressure of the first spring is released, the linkage mechanism is driven to move, and therefore the linkage mechanism drives the first firing pin connected with the linkage mechanism to move to form an impact force on the first acupuncture cap.

The specific scheme of the temperature sensing air source can be preferably realized by the following ways: further comprising a second housing and an end cap; the linkage mechanism is a cross-shaped connecting structure formed by a cross rod and a vertical rod; the first firing pin comprises a top end and a connecting base, and the top end is close to the first firing pin cap; one end of the cross rod vertically penetrates through the connecting base of the first firing pin, and the other end of the cross rod vertically penetrates through the center of the vertical rod to be fixedly connected with the vertical rod to form a connecting part; the second shell is used for connecting the vertical rod, the first spring and the fire-fighting temperature-sensing glass bulb of the linkage mechanism in the direction parallel to the same direction of the first firing pin: one end of the vertical rod, which is in the same direction as the firing pin, is connected with the fire-fighting temperature-sensing glass bulb, and the other end of the fire-fighting temperature-sensing glass bulb is fixed on the second shell; the first spring is sleeved on the other end of the vertical rod, the other end of the second shell is provided with a through hole, and the end cap is fixedly connected with the through hole from the outer side of the second shell so as to arrange the first spring on the vertical rod between the second shell and the connecting part; when the vertical rod, the first spring and the fire-fighting temperature-sensing glass bulb of the linkage mechanism are arranged in the second shell, two ends of the second shell are respectively connected with the fire-fighting temperature-sensing glass bulb and the end cap, and the first spring is in a compressed state; the first spring is compressed to a height greater than a predetermined spacing between the first striker striking end and the first striker cap striking end.

Further, the stiffness coefficient of the spring is 2 to 15N/mm, and the compressed height is 5 to 20 mm; the nominal starting temperature of the fire-fighting temperature-sensing glass bulb is any one of 93 ℃, 141 ℃ or 182 ℃.

Still further, the first composite solid propellant comprises a binder, a curing agent, an oxidant and a temperature reducing agent; the adhesive is hydroxyl-terminated polybutadiene and/or carboxyl-terminated polybutadiene, and the content of the adhesive is 10-40% by mass percent; the curing agent is toluene diisocyanate and/or isophorone diisocyanate, and the content is 0.5-5% by mass percent; the oxidant is ammonium perchlorate and/or ammonium nitrate, and the content is 20-60% by mass percent; the cooling agent is azodicarbonamide, and the content of the cooling agent is 20-60% by mass percent.

Further, the pneumatic starter comprises a piston, a connecting rod, a second acupuncture cap, a pulling pin, a second spring, a second acupuncture cap, a second firing pin and a pressing cap; the moving end face of the piston faces the air outlet of the pneumatic pipeline so as to receive the gas pressure from the pneumatic pipeline and move under the impact of the gas pressure; one end of the connecting rod is fixedly connected with the piston to move along with the piston, and the other end of the connecting rod is connected with the pull pin; the pull pin is parallel to the movement direction of the piston, one end of the pull pin is connected with the connecting rod, and the other end of the pull pin is connected with the second firing pin; the second firing pin comprises a base and a spring loop bar on the base, the tip end of the firing pin is arranged on the outer side of the base, the inner side of the base is connected with the spring loop bar, a transverse through hole is formed in the end, far away from the base, of the spring loop bar so as to be connected with a pull pin, the outer peripheral size of the base is larger than that of the second spring, and the outer peripheral size of the spring loop bar is smaller than that of the inner periphery of the second spring; the pressing cap is of a hollow structure with two open ends, the peripheral size of the opening at one end is positioned between the peripheral size of the second spring and the peripheral size of the spring sleeve rod, and the peripheral size of the opening at the other end is larger than the peripheral size of the second firing pin base and is matched with the peripheral size of the second acupuncture firing cap; when a second spring is sleeved outside a spring sleeve rod of the second firing pin and penetrates through the hollow part of the pressing cap to enable a transverse through hole of the pressing cap to be connected with the pulling pin, the second spring is fixed in the end cap in a compressed state; the second acupuncture fire cap is fixed at one end, close to the second striker base, of the pressing cap, and the distance from the striker tip end of the second striker base is not more than the compressed height of the second spring; the ignition end of the second acupuncture cap is connected with a gas generator; the distance between the second firing pin and the second needle firing cap in the needle point direction is not more than the compressed height of the second spring; when the piston moves under the impact of gas to drive the connecting rod to move so that the pulling pin is pulled out of the transverse through hole in the spring sleeve rod of the second firing pin, the compression of the second spring in the pressing cap is released, so that the second firing pin impacts the second needle-piercing fire cap, and the gas is generated in the gas generator.

Furthermore, the cross-sectional area of the piston is not less than 4 times the cross-sectional area of the air passage of the pneumatic line.

Further, the gas generator comprises a second composite solid propellant, wherein the second composite solid propellant comprises a binder, a curing agent, an oxidizer, a temperature reducing agent and a stabilizer; the adhesive is one or a combination of polyethylene glycol, polyethylene adipate and polycaprolactone, and the content is 10-40% by mass percent; the curing agent is toluene diisocyanate and/or isophorone diisocyanate, and the content is 0.5-5% by mass percent; the oxidant is ammonium perchlorate and/or ammonium nitrate, and the content is 20-60% by mass percent; the cooling agent is azodicarbonamide and/or dihydroxy glyoxime, and the content is 20-60% by mass percent; the stabilizer is 2-nitrodiphenylamine and/or 4-nitroaniline, and the content is 0.5-5% by mass percent.

Furthermore, the outer diameter of the pneumatic pipeline is not more than 6mm, the inner diameter of the pneumatic pipeline is not more than 4mm, and the pneumatic pipeline is connected with the temperature sensing air source and/or the pneumatic starter in a clamping sleeve connection and/or welding mode.

Further, the pneumatic starter is arranged outside the first port of the fire extinguishing agent storage tank, and the gas generator is arranged inside the first port of the fire extinguishing agent storage tank.

Furthermore, the pneumatic starter and the gas generator are both arranged outside the first port of the fire extinguishing agent storage tank, and the port of the gas generator is communicated with the first port of the fire extinguishing agent storage tank.

The principle of the invention is that after the temperature sensing air source is baked by fire, gas with certain pressure is generated and is transmitted to the pneumatic starter through the pneumatic pipeline, the gas pushes a piston in the pneumatic starter to move, the gas generator is started, and after the medicament in the gas generator is ignited, the gas with certain pressure is generated to push the fire extinguishing agent in the fire extinguishing agent storage tank to spray the fire extinguishing agent to the fire point through the spraying pipeline.

It can be seen that the gas generated by the temperature sensing gas source is provided by the first composite solid propellant through chemical reaction, and the main components are 1 or 2 combinations of nitrogen and carbon dioxide; the thermal self-ignition critical temperature of the first composite solid propellant is not lower than 150 ℃; the gas generated by the gas generator is provided by the second composite solid propellant through chemical reaction, and the main components are 1 or more than 2 of nitrogen, carbon dioxide and water vapor.

The pneumatic pipeline is made of one or more than 2 combinations of stainless steel, copper and copper alloy, and the pneumatic pipeline is connected with other parts in a manner of 1 or 2 combinations of cutting sleeve connection or welding.

Compared with the prior art, the invention has the following advantages and beneficial effects:

(1) the whole system does not need to supply power, so that the potential threat of system breakdown caused by burning out a power supply line due to fire is eliminated;

(2) the pneumatic pipeline has long effective transmission distance, can be conveniently bent as required and does not influence the transmission of power gas. The 150m stainless steel pipeline with the length and the inner diameter of 4mm can smoothly start the pneumatic starter at the other end of the pipeline only under the condition that 5g of gas generating agent (gas forming amount is 400L/kg) works at a temperature sensing gas source end.

(3) The maintenance free period is long. The service life of the composite solid propellant in the temperature sensing gas source and the gas generator of the fire extinguishing agent storage tank can reach more than 10 years. The tank body is of a non-pressure storage type, the whole system is not pressurized in advance, and the possibility of fire extinguishing agent leakage basically does not exist in long-term storage under normal conditions.

(4) Can be used in the field in low temperature environment. The system can be used in the field environment at the temperature of minus 40 ℃ by adopting the specific low-temperature resistant composite solid propellant agent and the low-temperature resistant fire extinguishing agent.

Drawings

These and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the following detailed description of the embodiments of the invention, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a non-electric non-pressure storage fire extinguishing system in an embodiment of the present invention;

wherein: 1-temperature sensing air source; 2-a pneumatic pipeline, 3-a pneumatic starter, 4-a gas generator, 5-a fire extinguishing agent storage tank and 6-a spraying pipeline;

FIGS. 2-3 are schematic external views of the fire extinguishing agent storage tank and the pneumatic starter and gas generator of the non-electric non-pressure storage type fire extinguishing system structure according to the embodiment of the present invention;

FIGS. 4-5 are schematic structural diagrams of a temperature-sensitive air source in an embodiment of the present invention;

wherein: 11-fire-fighting temperature-sensing glass bulb; 12-a first spring; 13-a first striker; 14-a first needle-prick fire cap, 15-a first composite solid propellant, 16-a linkage mechanism;

FIGS. 6-7 are schematic structural views of a pneumatic actuator in an embodiment of the present invention;

wherein: 31-piston, 32-connecting rod, 33-pulling pin, 34-second spring, 35-second needle-pricking cap, 36-second firing pin and 37-pressing cap.

Detailed Description

In order that those skilled in the art will better understand the present invention, the following detailed description of the invention is provided in conjunction with the accompanying drawings and the detailed description of the invention.