JPH06261957A - Automatic extinguishing gas spraying apparatus - Google Patents

Abstract

PURPOSE:To perform two-stage fire extinguishing activities, i.e., a cooling process made by gasification of a liquefied gas jetted and an oxygen eliminating process made by the elimination of oxygen, which is generated by decreasing the oxygen in a room, etc., by putting a carbonic gas or a liquefied gas of nitrogen series in a gas container, breaking the sealing plate of the gas container with an impact needle which has dropped, and thereby allowing the liquefied gas to jet out. CONSTITUTION:A liquefied gas of carbonate series or nitrogen series is in a certain amount put in a gas container 1 equipped at the head with a screw 3 and sealed with a sealing plate 2, and a container receptacle 4 equipped with an impact needle 16 to break the sealing plate is screwed fast on the head of the container, and a temp. sensor mechanism is furnished which is equipped with a spring 30 of a shape memory alloy for falling of the impact needle on the container receptacle.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to the field of automatic fire extinguishing gas injectors.

[0002]

2. Description of the Related Art A conventional fire extinguisher gas injection device is mainly operated by a manual operation using a large cylinder filled with halon gas.
It was a system device that broke the sealing plate of the cylinder and sprayed the halon gas filled in the cylinder to extinguish the gas.

Since conventional gas fire extinguishers spray powder or water-soluble fire extinguishing agents, the fire extinguishing agents adhere to not only fire extinguishing activities but also machinery, clothes, documents, etc. installed indoors, The damage was increasing significantly.

Further, in the case of conventional fire extinguishers that inject fire extinguishing agents, it is decided by international treaties for improving the global environment that the use of halon gas should be stopped, and therefore fire extinguishing without loss of sophisticated electronic equipment and important documents. The development of a substitute for Halongus, which fulfills the above requirements, has been regarded as important internationally.

[0005]

However, according to the present invention,
Fill the cylinder with a predetermined amount of carbonic acid- or nitrogen-based liquid with a high vaporization rate, and seal it with a sealing plate.The cylinder should be peeled off except the head, and the sealing plate should be placed on the head of the cylinder. A cylinder receiver fitted with a shattering hammer is screwed into the cylinder head, and a temperature sensor mechanism such as a shape memory alloy spring and a fixed part are mounted above the cylinder receiver, and a sealing plate is attached. When the liquid gas in the cylinder was automatically jetted by being crushed, a mechanism was created in which a gap was created that did not block the jetting of the liquid gas, and the upper part of the cylinder was screwed to the fixed part, and the gas was jetted from the cylinder. Extinguishing the cooling by utilizing the cooling that the liquid gas vaporizes to an ultra-minus temperature (-30 ° C to -40 ° C), and secondly, the room or the inside of the warehouse due to the explosive expansion of the vaporized gas. Oxygen deficiency extinction The amount of vaporization is 500 times, and 21% of oxygen is reduced to 15% for oxygen deficiency, that is, the amount of vaporization is about one-fourth of the room for extinguishing fire.) Not to pollute various equipments such as indoors, documents, and drawing bones, and fourth, unlike the conventional manual operation of high pressure gas filled in a cylinder, based on the calculation of the indoor volume for extinguishing fire The purpose is to obtain a number of advantages such as the equipment with a fixed number of installations and automatic injection by temperature memory to speed up the function of fire fighting activity.

[0006]

SUMMARY OF THE INVENTION The present invention is a cylinder with a sealing plate, in which a screw is provided on the outer circumference of the head,

Inside the lower end, a screw for screwing with the screw of the cylinder is provided, and an injection hole is provided above the screw, and a step portion having a diameter slightly larger than the injection hole is provided, and the screw of the cylinder is provided. And a hollow portion into which the head with the sealing plate of the cylinder is inserted by screwing a screw provided inside the lower end and a through hole having a diameter slightly smaller than the diameter of the hollow portion are formed to communicate with each other, and the hollow portion A cylinder receiver with a step at the connection with the through hole,

The hollow portion of the cylinder receiver and the through hole are fitted to each other, the lower end portion to be fitted to the hollow portion is formed with a flange portion, and the upper end portion to be fitted to the through hole is provided with a recess for inserting an O-ring. And a shaft body in which a recess for inserting the retainer is formed above the recess, respectively,

A firing pin is projectingly provided at one end of the shaft body, the shaft body is inserted into a cylinder receiver, and a spring is normally compressed between the flange portion and the step portion of the shaft body inserted into the hollow portion. Interpose by inserting it in the shaft body in a little state,

There is a step portion inside and a through hole for inserting a cylinder receiver, a recess is formed on the outer periphery, a screw is provided inside the lower end, and an attachment is inserted into the recess.
A fixing part for preventing the cylinder receiver from falling by catching the step of the cylinder receiver on the step.

A bolt is inserted so that the head of the curved retainer fitted in the recess above the shaft rotates, and screwed into the fixed portion.

A bolt for mounting a safety pin is screwed to a fixing portion below a tapered shaft portion with a tapered portion to be inserted between the leg portions constituting the retainer, and a head of the tapered shaft portion is made of a shape memory alloy. A spring is pressed to press this shaft, and in order to hold the pressing of the spring, the upper and lower connectors are pivotally attached to the pins, and the upper connector is attached to the head of the fixed portion so as to rotate,

An automatic fire extinguisher gas ejector in which a shaft body is fitted in the cylinder receiver, the lower end of the cylinder receiver is screwed to the cylinder, the fixed member is fitted to the cylinder receiver, and the above-mentioned respective components are assembled. At

The cylinder is preliminarily filled with a liquid gas having a very high vaporization rate, which is composed of carbonic acid-based or nitrogen-based synthesis,

The fixed body assembled as described above has a length such that it reaches the head of the cylinder from the lower end thereof, has a hollow portion inside, is provided with a screw on the upper outer peripheral portion, and has an opening portion at the lower portion. Forming a tubular body,

A cylinder is inserted into the hollow portion of the cylindrical body, and the upper screw of the cylindrical body and the screw provided at the lower end of the fixing portion are screwed together to assemble the cylinder, and a predetermined temperature, for example, 70.degree.
The shape memory alloy spring, which has the property of extending at 5 ° C., operates, the retainer that supports the spring is opened, the shaft body falls due to the extension of the spring, and the dropping needle breaks the sealing plate of the cylinder and fills it. An automatic fire extinguisher gas injector characterized by injecting the liquid gas that is present and extinguishing a room or a room in which it is installed by a two-stage fire extinguishing method of cooling fire extinguishing and oxygen deficiency extinguishing.

[0017]

The operation of the present invention will be described below.

The automatic fire extinguishing gas injector of the present invention is used in a computer room, an engine room, a ship, a driving room of a vehicle, a power distribution room, a power source room, a boiler room, a container for a ignited material, an automatic power generation room, a heating equipment room, important items. A shape memory alloy spring installed in a so-called room, inside, or inside a cabinet at a predetermined location, such as a cabinet of a storage, a library, an art store, a pyrotechnic appliance, a gas product, etc., is installed facing forward. To do.

Then, the quantity is appropriately adjusted based on the indoor volume in the room, the interior, and the cabinet.

When a fire occurs in a room equipped with the projectile of the present invention and reaches a predetermined temperature, the shape memory alloy spring is deformed and pressed to press the retainer. The retainer that was being pressed at that time was slightly opened by the taper of the taper shaft, and the shaft with a firing pin that was prevented from jumping out by the retainer was replaced by a spring that is interposed between the cylinder receiver and the shaft. It is lowered by the expansion force. By this drop of the shaft body, the firing pin also suddenly descends downward, and the pointed portion of the tip end forming the firing pin breaks the sealing plate of the cylinder.

By the above steps, the cylinder is broken and the liquid gas filled in the cylinder is jetted. The injected gas fills the inside of the cylinder through the injection hole, and is automatically injected to the periphery of the cylinder from the gap formed between the lower part of the cylinder and the cylinder, rapidly cooling the room temperature and quenching the fire. Is done.

Further, the liquid gas injected from the cylinder is vaporized to become vaporized gas, and the vaporized gas becomes an explosive expansion amount, and the inside of the room or the compartment is made oxygen-deficient. The oxygen deficiency is not just oxygen deficiency, but is calculated in advance so that 21% of oxygen, which is necessary for extinguishing the oxygen deficiency, can be reduced to 15%, which is equivalent to about a quarter of the amount of vaporization in the room for extinguishing purposes. The cylinder is filled with liquid gas. Therefore, the amount of the liquid gas to be filled in the cylinder may be calculated based on the size of the room or the like installed in advance, and a predetermined amount of the liquid gas may be charged, or the present invention may be performed according to the size of the room or the like. The equipment of is increased and installed.

Further, in the liquid gas automatic ejector of the present invention, the time from the break of the sealing plate to the injection of the gas is
Unlike the conventional fire extinguisher mechanism, the speed is extremely high, and the pressure is not reduced, and the gas is immediately injected and vaporized into the installation room, etc. It has the function of creating an oxygen deficiency state and completing fire fighting activities.

Further, in the structure of the present invention, since the portion slightly below the head of the cylinder is a gentle slope, the injected liquid gas is extremely easy to complete the injection downward from the inside of the cylinder. ing. Therefore, it became possible to increase the speed of fire fighting activities.

Further, there is no possibility that various kinds of equipment, important items, documents and the like in the room will be spilled and contaminated by the vaporized gas accompanying the injection of the liquid gas of the present invention.

[0026]

EXAMPLES Examples of the present invention will be described. a is an automatic fire extinguishing gas injector of the present invention.

Reference numeral 1 is a cylinder filled with a liquid gas of carbonic acid type or nitrogen type which is provided with a sealing plate 2 on the upper side thereof and has an extremely minus temperature (-30 ° C to -40 ° C) when opened and vaporized. When this liquid gas is vaporized, it is cooled to the super-minus temperature (−30 ° C. to −40 ° C.) as described above, and the liquefaction c
The amount of vaporization is 500 times the amount of c, and in order to achieve an oxygen-deficient state, the fire should be extinguished by reducing 21% oxygen to 15%. According to the above, calculate so that it will be about 1/4 and carry out the quantity equipment.
Reference numeral 3 is a screw provided on the outer circumference of the head, and the cylinder 1 is configured as described above.

Reference numeral 4 has a hollow portion 5 and a through hole 6 which communicate with each other, and an injection hole 7 for injecting the liquid gas to be injected to the side wall portion.
It is a cylinder receiver with. The head of the cylinder 1 is screwed onto one end of the cylinder receiver 4. The other end of the cylinder receiver 4 has a slightly larger diameter to form a step 8. The relationship between the hollow portion 5 and the through hole 6 is such that the diameter of the hollow portion 5 is larger, and the connecting portion between both portions is the step portion 9.

Reference numeral 10 is fitted into the hollow portion 5 and the through hole 6, and a flange portion 11 is formed at the lower end portion fitted into the hollow portion 5 to form the through hole 6.
The upper end portion to be inserted into
3 is a shaft body in which a recess 15 into which the retainer 14 is fitted is further formed above the recess 13. 16 is a shaft body 1
It is a firing pin projecting at one end of 0. And the shaft 1
The reference numeral 0 indicates that a spring 17 is inserted into the shaft body 10 and interposed between the flange portion 11 and the stepped portion 9 of the shaft body 10 inserted into the cylinder receiver 4 and inserted into the hollow portion 5. The spring 17 is normally inserted in a contracted state.

Reference numeral 18 is a fixed portion having a step portion 19 on the inner side, a through hole 20 into which the cylinder receiver 4 is inserted and a concave portion 21 formed on the outer periphery. One end of the fixed portion 18 is screwed to the tubular body 23 via the packing 22. And the recess 21
The attachment 24 is inserted into the. Further, the stepped portion 8 of the cylinder receiver 4 is caught by the stepped portion 19 of the fixed portion 18 to prevent the cylinder receiver 4 from falling. Then, the bolt 25 is inserted so as to rotate the head of the bent retainer 14 fitted in the recess 15 above the shaft body 10 and screwed to the fixing portion 18. Reference numeral 26 is a tapered shaft portion having a tapered portion 27 inserted between the legs of the retainer 14. A safety pin 28 is located below the tapered shaft portion 26, and a bolt 29 penetrates these members and is screwed to the fixing portion 18.
The temperature of the taper shaft portion 26 is 70 ° C. ± 5
A spring 30 made of a shape memory alloy that extends when the temperature reaches 0 ° C. is applied to press the shaft portion 26. In order to hold the pressing force of the spring 30, the upper and lower connectors 31 and 32 are connected to the pin 33.
Is attached to the head of the fixing portion 18 so that the upper connector 32 is rotated. Reference numeral 34 is a cap put on the head of the automatic fire extinguishing gas injector a.

Further, the tubular body 23 is screwed to one end of the fixed portion 18 via the packing 22, and has a length such that the lower portion reaches the downwardly inclined portion of the head of the cylinder 1, A gap portion 35 is formed between the lower inclined portion and the lower portion of the cylindrical body 23.

[0032]

[Effect] The present invention has the following effects.

According to the present invention, a carbonic or nitrogen liquid gas, which is cooled to an ultra-minus temperature (-30 ° C to -40 ° C) when it is opened and vaporized, is filled in the cylinder, and the head of the cylinder is located above the cylinder. The lower end reaches the lower inclined part, and the cylinder body with the gap between the lower part and the inclined part is attached, and the temperature sensor mechanism is activated by the temperature change of the shape memory alloy spring. , The cylinder sealing plate is smashed with a firing pin, and the liquid gas filled in the cylinder is directly injected into the room, etc., and the injection is made from the gap formed between the cylinder and the inclined part of the cylinder. In addition to being able to cool it smoothly, by utilizing the property of liquid gas that cools to an ultra-minus temperature by vaporization, the high temperature generated in the room etc. was cooled and fire extinguishing activities were carried out. By adopting the two-stage method of cooling and extinguishing the cooling fire, in which the oxygen deficiency state in the room etc. is caused by explosive mass production and the fire extinguishing activity in the room is performed by this oxygen deficiency state, The fire-extinguishing ability can be improved significantly compared to the fire-extinguishing method.

Furthermore, even if the liquid gas filled in the cylinder constituting the automatic fire extinguisher gas injector of the present invention is injected by the occurrence of a fire to become vaporized gas and fills the inside of the chamber to carry out oxygen deficiency fire extinguishing, It has an excellent advantage that the gas does not spill out various equipments, important documents, stored items such as works of art in the room.

The liquid gas used in the present invention has a vaporization amount of cc amount of liquefaction × 500 times, and it is sufficient to reduce 21% oxygen to 15% for oxygen deficiency. The number of fire extinguishing gas injectors to be used may be prepared in advance and installed in a room or the like by preliminarily calculating the widths of the above.

[Brief description of drawings]

FIG. 1 is a partially cutaway vertical front view of an automatic fire-extinguishing gas injector according to the present invention.

FIG. 2 is a plan view of the device.

FIG. 3 is an exploded perspective view of the device before assembly.

[Explanation of symbols]

a ... Automatic fire extinguishing gas injector 1 ... Cylinder 2
・ ・ ・ Seal plate 3 ・ ・ ・ Screw 4 ・ ・ ・ Cylinder receiver 5 ・ ・ ・ Hollow part 6, 20 ・ ・ ・ Through hole 7 ・ ・ ・ Injection hole 8, 9,
Reference numeral 19 ... Step portion 10 ... Shaft body 11 ... Collar portion 12 ... O ring 13, 15, 21 ... Recessed portion 14 ... Retainer 16 ... Shooting needle 17 ... Spring 18. ..Fixed parts 22 ..
..Packing 23 ... Cylinder 24 ... Attachment 2
5, 29 ... Bolt 26 ... Tapered shaft portion 27 ... Tapered portion
28 ... Safety pin 30 ... Spring 31, 32 ... Connector 3
3 ... Pin 34 ... Cap 35 ... Gap

[Procedure amendment]

[Submission date] June 6, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Automatic fire extinguishing gas injector

[Claims]

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an automatic fire extinguishing gas injector.

[0002]

2. Description of the Related Art Various types of fire extinguishers have been made in the past. One of the known examples is a gas fire extinguisher, which uses a cylinder filled with liquefied extinguishing gas such as halon gas or carbon dioxide, and manually breaks the sealing plate of the cylinder to remove the gas as an extinguishing agent. It was a device that spouted. Further, as another known fire extinguisher, there has been one that ejects powder or a water-soluble fire extinguishing agent by gas pressure or the like.

[0003]

In the case of a gas fire extinguisher, these conventional fire extinguishers have a problem that it takes time to extinguish the fire because the gas can be ejected by manual operation. Also,
In particular, for gas fire extinguishers that used halon gas, it was decided to discontinue use of halon gas by an international treaty for improving the global environment, so it is necessary to develop alternatives to halon gas. Also, in the case of a fire extinguisher that sprays powder or water-soluble fire extinguishing agents, the fire extinguishing activity may cause serious damage due to the fire extinguishing agent adhering to machinery, clothes, documents, etc. installed indoors. There was a problem of becoming.

It is an object of the present invention to provide a cooling and extinguishing function due to an extremely low temperature due to latent heat of vaporization when a gas such as carbon dioxide filled in a liquid state is injected and vaporized, and explosive expansion of vaporized gas. Along with this, the two-stage fire extinguishing function, which is an oxygen-deficient fire extinguishing function by making the room or the interior of the room oxygen-deficient, is used to enhance the fire extinguishing ability, and the speed of fire extinguishing activities is increased by automatic injection of gas by temperature memory. An object is to provide an automatic fire extinguishing gas injector that can be realized.

Another object of the present invention is to provide various facilities such as indoors,
An object of the present invention is to provide a high-performance automatic fire extinguisher gas injector that does not contaminate documents, antiques, and the like, and is capable of speedy fire extinguishing activities.

[0006]

An automatic extinguishing gas injector according to the present invention is an extinguishing gas containing at least one of carbon dioxide and nitrogen, which has a cooling extinguishing function associated with latent heat of vaporization and an oxygen deficiency extinguishing function associated with expansion of vaporization. A cylinder filled with liquid in a liquid state and sealed with a sealing plate, a firing mechanism that breaks the sealing plate of the cylinder, a cylinder receiving mechanism that holds the cylinder and supports the firing mechanism, and supports the cylinder receiving mechanism. A locking mechanism, a retainer mechanism that holds the firing pin mechanism in a non-operating state, and a retainer actuation mechanism that activates the firing pin mechanism by opening the retainer mechanism at a predetermined temperature using a shape memory alloy spring. It is a thing.

Preferably, in the automatic fire extinguishing gas injector according to the present invention, the fixing mechanism is provided with a cylindrical body which surrounds the cylinder receiving mechanism and has a gap between the cylinder receiving end and the cylinder. .

Preferably, in the automatic fire extinguishing gas injector according to the present invention, the cylinder has a screw on an outer circumference of a head, and the cylinder receiving mechanism has a screw of the cylinder inside one end. A screw for screwing is provided, an injection hole is provided inside the screw, and a step portion having a slightly larger diameter is provided on the outer periphery on the other end side away from the injection hole. A hollow portion into which the head with a sealing plate of the cylinder can be inserted from one end is provided by screwing with a screw provided inside the end portion of the hollow portion, and the hollow portion is provided on the other end side adjacent to the hollow portion. A through hole having a diameter slightly smaller than the diameter of the portion is provided, the hollow portion and the through hole are made to communicate with each other, and a cylinder receiving body having a step portion at a connecting portion between the hollow portion and the through hole is formed.

Preferably, in the automatic fire-extinguishing gas injector according to the present invention, the firing pin mechanism has a flange portion at one end and a recess into which the O-ring is fitted at the other end. Further, a concave portion for inserting the retainer is formed at a position on the tip end side away from the concave portion, and one end portion having the flange portion formed in the hollow portion of the cylinder receiving mechanism is inserted and inserted into the through hole. A shaft body that is inserted into the cylinder receiving mechanism so that the other end is inserted, a firing needle that projects from one end of the shaft body, and is inserted into the cylinder receiving mechanism and is inserted into the hollow portion. It is composed of a spring interposed in a normally compressed state between the flange portion of the inserted shaft body and the step portion of the connecting portion.

Further, preferably, in the automatic fire extinguishing gas injector according to the present invention, the fixing mechanism is provided with a through hole into which the cylinder receiver is inserted and the stepped portion on the outer periphery of the cylinder receiver is hooked. A fixing portion is provided in which a step portion for preventing the receiver from falling is provided, a concave portion is formed on the outer periphery, an attachment is fitted into the concave portion, and a screw is provided inside one end portion.

Preferably, in the automatic fire extinguisher gas injector according to the present invention, the retainer mechanism has a bent retainer in which a leg portion can be inserted into a recessed portion on the tip side of the shaft body, and a head of the retainer. And a bolt that is rotatably inserted and screwed into the fixed portion.

[0012] Preferably, in the automatic fire extinguishing gas injector according to the present invention, the retainer actuating mechanism includes a taper shaft portion with a taper portion to be inserted between legs forming the retainer, and a lower portion of the taper shaft portion. A safety pin to be disposed on the taper shaft, a bolt that penetrates the taper shaft portion and the safety pin and is screwed to the fixing portion, and a shape memory alloy spring that presses the head portion of the taper shaft portion to press the shaft portion. , A connector for pivotally attaching a pair of connectors to each other so that one connector can be rotated and a bolt for fixing the one connector that is rotatable to hold the pressure against the spring It consists of and.

In one preferred embodiment, the automatic injection gas fire extinguisher according to the present invention has a cylinder with a sealing plate having a screw on the outer periphery of the head, and a screw of the cylinder on the inside of one end. A screw for screwing is provided, an injection hole is provided above the screw, and a step portion having a slightly larger diameter is provided on the outer circumference on the other end side away from the injection hole. A hollow portion into which the head with a sealing plate of the cylinder can be inserted from one end by screwing with a screw provided inside the end portion is provided, and the hollow portion is provided adjacent to the hollow portion on the other end side. A through hole having a diameter slightly smaller than the diameter of the hollow part is provided to connect the hollow part and the through hole to each other, and a cylinder receiver having a connecting part between the hollow part and the through hole as a step part and a flange part at one end part. And a recess for inserting the O-ring is formed at the other end of the recess. A recess for inserting the retainer is formed above, and one end of the cylinder receiver in which the flange is formed is inserted and the other end is inserted into the through hole. A shaft body inserted into the cylinder receiver, a firing pin projecting from one end of the shaft body, a collar portion of the shaft body inserted into the cylinder receiver and inserted into the hollow portion, and the connecting portion. A spring, which is normally interposed between the stepped portion and the stepped portion, and a through hole for inserting the cylinder receiver inside are provided, and the stepped portion on the outer circumference of the cylinder receiver is hooked to prevent the cylinder receiver from falling. A stepped portion is formed, a concave portion is formed on the outer periphery, an attachment is fitted and inserted in the concave portion, and a fixing portion having a screw inside one end portion and a bend fitted and inserted in the concave portion on the tip end side of the shaft body are provided. The retainer having a shape and the head of the retainer are fixed to the fixing portion. A bolt for fixing, a taper shaft portion with a taper portion to be inserted between the leg portions forming the retainer, a safety pin arranged below the taper shaft portion, and the taper shaft portion and the safety pin passing through the safety pin. A bolt that is screwed to the fixed portion, a spring made of a shape memory alloy that presses the head portion of the tapered shaft portion to press the shaft portion, and a pair of connectors is pivotally attached by a pin so that one connector can be rotated. A connector to be mounted on the head of the fixing portion and a bolt for fixing the one connector that is rotatable to hold the pressing force against the spring are provided, and the shaft body is inserted into the cylinder receiver to receive the cylinder receiver. An automatic fire extinguisher gas injector in which the fixing portion is fitted to, and other constituent members are assembled, and one end of the cylinder receiver and the cylinder are screwed to each other. The tank is pre-filled in a liquid state with an extinguishing gas consisting of at least one of carbon dioxide and nitrogen and having a cooling and extinguishing function with latent heat of vaporization and an oxygen deficiency extinguishing function with vaporization expansion, and one of the fixing parts A cylinder having a length that reaches the head of the cylinder from the end, a hollow part formed inside, and a screw provided on the outer periphery of the tip is used as a screw on the tip side of the cylinder and one end of the fixing part. Assembled so as to form an open portion on one end side by screwing with a screw provided on the portion, and screwing one end of the cylinder receiver and the cylinder, and the spring extends when a predetermined temperature is reached. a shape memory alloy spring properties, the tapered shank opening the retainer by said shape memory alloy spring extends, the spring causes the dropping of the shaft extends, seal of the firing pin the cylinder Broke the plate and filled By injecting the above liquid gas to cool the inside of the installed room or chamber and extinguish the oxygen
It was configured to extinguish the fire by a step fire extinguishing method.

[0014]

The automatic fire extinguishing gas injector of the present invention is used in a computer room, an engine room, a ship, a driving room of a vehicle, a power distribution room,
Power supply room, boiler room, container of ignition materials, automatic power generation room,
It will be installed in the heating equipment room, the storage of important items, the library, the arts store, the cabinet of pyrotechnic products, gas products, etc., in the so-called room, cabinet, or a predetermined location in the cabinet. The number of the automatic fire extinguishing gas injectors to be installed is appropriately adjusted based on the indoor volume in the room, the inside of the cabinet, and the inside of the cabinet.

When a fire occurs in a room equipped with the automatic fire-extinguishing gas injector of the present invention and reaches a predetermined temperature, the shape memory alloy spring is deformed and presses the retainer, for example, via the tapered shaft portion. At that time, the retainer pressed at this time is slightly opened by, for example, the taper portion of the taper shaft portion, and further, the shaft body with the firing pin, for example, which is prevented from being ejected by the retainer, is interposed between the cylinder receiver and the shaft body, for example. It is lowered by the extension force of the spring. Then, for example, when the shaft is lowered, the firing pin suddenly drops, and the pointed portion of the tip end portion that constitutes the firing pin breaks the sealing plate of the cylinder.

Through the above steps, the cylinder is broken and the extinguishing gas filled in the cylinder is injected. The injected gas fills the inside of the cylinder through, for example, the injection hole, and is automatically injected around the cylinder from the gap formed between the lower portion of the cylinder and the cylinder. At that time, the gas vaporized by the jetting becomes an extremely low temperature, whereby the room temperature is rapidly lowered, and cooling and extinguishing are performed. Further, the vaporized gas explosively expands to make the inside of the room or the chamber oxygen-deficient, thereby extinguishing the oxygen. Further, in the automatic fire extinguisher gas injector according to the present invention, the sealing plate is automatically broken at a predetermined temperature. Therefore, the time until the fire-extinguishing gas is injected is short, and the fire-extinguishing activity is started very quickly. In addition, the fire-extinguishing gas according to the present invention does not cause various facilities, important items, documents, etc. in the room to become wet or dirty.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic fire extinguishing gas injector according to the present invention will be described below with reference to the drawings.

In the figure, a is an automatic fire extinguisher gas injector, which is filled with a gas composed of carbon dioxide, nitrogen or a mixture thereof as a fire extinguishing gas in a liquefied state, and a sealing plate 2
It is equipped with a cylinder 1 that is sealed in. This kind of gas is
When vaporized, it has an extremely low temperature (for example, -30 ° C to -40 ° C), so it has a cooling and extinguishing function, and since it expands explosively (for example, 500 times) with respect to the volume in the liquefied state by vaporization, it has an oxygen deficiency extinguishing function There is. For example, in order to prepare for a fire in a room or the like, the oxygen deficiency fire extinguishing function is exhibited by adjusting the equipment so that the amount of vaporization becomes about one fourth of the size of the room or the like. The effect of oxygen deficiency fire extinguishing is 21% to 15% of indoor oxygen.
It is obtained by reducing it to a certain degree. The cylinder 1 has a mounting screw 3 on the outer circumference of the head.

The automatic fire extinguishing gas injector a also comprises a cylinder receiver 4 for mounting and holding the cylinder 1. The cylinder receiving body 4 has a hollow portion 5 inside and an axial through hole 6 communicating with the hollow portion 5 at the upper end portion.
Have. Further, the cylinder receiving body 4 is provided with a pair of injection holes 7 below the hollow portion 5. These injection holes 7
Is a flange portion 1 above the sealing plate 2 of the mounted cylinder 1 and at a lower end portion of the shaft body 10 when the shaft body 10 described below is lowered.
It is provided above the position 1. Further, the diameter of the upper end portion of the cylinder receiving body 4 is slightly increased, and the outer periphery of the boundary portion is a step portion 8. Further, inside the lower end portion of the cylinder receiving body 4, a screw 3'which is screwed to the screw of the head of the cylinder 1 is provided. Further, in the hollow portion 5 and the through hole 6, the diameter of the hollow portion 5 is larger, and the connecting portion of both portions is a step portion 9.

A shaft body 10 is inserted into the cylinder receiving body 4 from the lower end side through the hollow portion 5 and the through hole 6. The shaft body 10 has a flange portion 11 at a lower end portion inserted into the hollow portion 5, a recess portion 13 into which an O-ring 12 is inserted at an upper end portion inserted into the through hole 6, and further, a recess portion 13 of the recess portion 13. The recessed portion 1 into which the leg portion 14 ′ of the retainer 14 is fitted and inserted above
5 is formed. Then, at one end of the shaft body 10, a firing pin 16 having a hollow structure is provided so as to penetrate the inside in the axial direction. Further, the shaft body 10 is provided with a radial through hole 10 a communicating with the inside of the shooting needle 16. Also, the shaft 1
A spring 17 is fitted and inserted at 0. Then, the shaft body 10 is lifted so that the spring 17 is compressed between the flange portion 11 of the shaft body 10 fitted in the hollow portion 5 and the stepped portion 9 of the cylinder receiver 4, and in that state, The legs 14 ′ of the retainer 14 are fitted into the recesses 13.

The automatic fire extinguishing gas injector a also comprises a fixing portion 18 for supporting the cylinder receiving body 4. The fixing portion 18 has a through hole 20 having a step portion 19 for receiving the step portion 8 on the outer circumference of the cylinder receiver 4. The cylinder receiving body 4 is fitted into the through hole 20 and locked by the step portion 19. Further, a concave portion 21 is formed on the outer periphery of the fixed portion 18. A tubular body 23 is screwed to one end of the fixed portion 18 via a packing 22.

An attachment 24 is fitted into one side of the recess 21 of the fixed portion 18 except for a holder fitting portion.

The retainer 14 has its head fixed by a bolt 25 screwed to the peripheral portion of the upper surface of the fixing portion 18. The retainer 14 is made of a spring material and has a pair of leg portions 1 extending in the same direction from the head.
4'extends and these leg portions 14 'are arranged so as to always sandwich the taper portion 27 of the taper shaft portion 26 provided on the peripheral portion on the opposite side of the upper surface of the fixed portion 18. In this state, the leg portion 14 ′ of the retainer 14 has the concave portion 1 of the shaft body 10.
5 is inserted and prevents the shaft 10 from descending.

The taper shaft portion 26 has the taper shaft portion 26.
It is fixed to the fixing portion 18 by a bolt 29 penetrating through. A safety pin 28 is detachably fitted to the lower surface of the taper portion 27 of the taper shaft portion 26 so as to prevent the taper shaft portion 26 from descending. A shape memory alloy spring 30 having a property of extending when the temperature reaches, for example, 70 ° C. ± 5 ° C. is attached to the head of the tapered shaft portion 26 in a slightly compressed state. A pair of upper and lower connectors 31 and 32 are mounted on the upper surface of the fixed portion 18 so that the upper connector 32 is rotatable, with one end pivotally attached to each other by a pin 33. One end of the shape memory alloy spring 30 is supported by the upper connector 31, and the tapered shaft portion 26 is always slightly pressed.

The cylindrical body 23 has such a length that the lower portion thereof reaches the downwardly inclined portion of the head of the cylinder 1 in a state of being screwed to one end of the fixed portion 18 via the packing 22, and
A predetermined gap 35 is provided between the cylinder 1 and the lower portion of the cylindrical body 23.
Are supposed to be formed.

The injector body is constructed as described above. The automatic fire-extinguishing gas injector a of this embodiment is configured such that the injector body configured as described above is housed in the case 41.

The case 41 includes a mounting plate 42 and the mounting plate 4
2 and a cover 43 attached to be openable and closable.
The mounting plate 42 is formed in a guide rail shape so that the side portion of the cylinder 1 fits shallowly, and the upper portion is fitted into the recess 21 of the fixing portion 18 to hold the injector body. Equipped with a holder.

When a fire occurs in a room equipped with the automatic fire extinguishing gas injector and reaches a predetermined temperature, the shape memory alloy spring 30 is deformed and presses the retainer 14 via the tapered shaft portion 26. At that time, the retainer 14 pressed at this time is opened by the taper portion 27 of the taper shaft portion 26, the shaft body 10 which is prevented from being ejected by the retainer 14 is lowered by the extension force of the spring 17, and the firing pin 16 suddenly descends to cause a cylinder drop. The sealing plate 2 of 1 is broken. And cylinder 1
The fire-extinguishing gas filling the space is injected, and the fire-extinguishing gas passes through the inside of the firing pin 16 and passes through the through hole 10a in the radial direction of the shaft body 10.
Through the injection hole 7 of the cylinder receiver 10 and the cylinder 23
Gushing into the interior of the cylinder, the gap 3 between the cylinder 23 and the cylinder 1
It is injected to the outside from 5.

The present invention is not limited to the above embodiment, but a nozzle is attached to the injection hole of the cylinder receiver, and the extinguishing gas is directly injected from the nozzle to the outside without using a cylinder. Can be carried out in various modes.

[0030]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, when a gas such as carbon dioxide filled in a cylinder in a liquid state is jetted and vaporized, the cooling and extinguishing function is caused by the latent heat of vaporization resulting in an extremely low temperature. With the two-step fire extinguishing function of the oxygen-deficient fire extinguishing function by making the room or the inside of the room oxygen-deficient due to the explosive expansion of vaporized gas, the fire extinguishing ability can be enhanced and the temperature memory It is possible to speed up fire extinguishing activities by automatic injection of gas, and to carry out fire extinguishing activities that do not contaminate various equipment such as indoors, documents, calligraphy and antiques.

[Brief description of drawings]

FIG. 1 is a partially cutaway vertical front view showing an embodiment of an automatic fire extinguishing gas injector according to the present invention;

FIG. 2 is a plan view of the embodiment shown in FIG.

FIG. 3 is an exploded perspective view of the embodiment shown in FIG. 1 before assembly.

[Explanation of Codes] a Automatic fire extinguishing gas injector 1 cylinder 2 sealing plate 3 screw 4 cylinder receiver 5 hollow part 6,20 through hole 7 injection hole 8, 9, 19 step part 10 shaft body 11 collar part 12 O-ring 13, 15, 21 Recess 14 Retainer 16 Shooting needle 17 Spring 18 Fixing part 22 Packing 23 Cylindrical body 24 Attachment 25, 29 Bolt 26 Taper shaft part 27 Taper part 28 Safety pin 30 Spring 31, 32 Connector-33 pin 35 Gap

[Procedure 3]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

Claims (1)

[Claims] 1. A cylinder with a sealing plate having a screw on the outer circumference of the head, a screw for screwing the screw of the cylinder to the inside of the lower end, and an injection hole above the screw, respectively. Also, a hollow part into which the head with a sealing plate of the cylinder is inserted by screwing the step part with a slightly larger diameter upward and the screw of the cylinder and the screw provided inside the lower end, and the diameter of the hollow part A through hole having a slightly smaller diameter is formed so as to communicate with each other, and a cylinder receiver having a connecting portion between the hollow portion and the through hole as a step portion, and a hollow portion of the cylinder receiver and the through hole are fitted and fitted into the hollow portion. A shaft body in which a flange portion is formed at a lower end portion to be inserted, a concave portion for inserting an O-ring is formed at an upper end portion to be inserted into a through hole, and a concave portion for inserting a retainer is further formed above the concave portion; A firing pin was projected on one end of the shaft body, and the shaft body was fitted in a cylinder receiver and fitted in a hollow portion. Between the collar and the step of the body, the spring is inserted in the shaft body in a state where it is normally contracted, and the step is inside and the through hole for inserting the cylinder receiver is provided. , A recess is formed on the outer periphery, a screw is provided inside the lower end, an attachment is fitted in the recess, and a step portion of the cylinder receiver is caught by the step portion and a fixing portion for preventing the cylinder receiver from falling. , A bolt is inserted so that the head of the curved retainer fitted in the recess above the shaft body is rotated, and is screwed into the fixing portion, and is inserted between the leg portions constituting the retainer. A bolt that attaches a safety pin to the lower part of the taper shaft part with a taper part is screwed to the fixed part, and a shape memory alloy spring is applied to the head of the taper shaft part to press this shaft part and press the spring. To hold the upper and lower connectors by pivoting the pins Mounted on the head of the fixed part so that the rotary body rotates, the shaft body is inserted into the cylinder receiver, the lower end of the cylinder receiver and the cylinder are screwed together, and the fixed body is fitted to the cylinder receiver. In the automatic fire extinguisher gas ejector in which each of the constituent members is assembled, the cylinder is pre-filled with a liquid gas having a very high vaporization expansion rate, which is composed of a carbonic acid-based or nitrogen-based composition, and is fixed as assembled as described above. A cylinder having a length from the lower end of the body to reach the head of the cylinder, a hollow inside, a screw provided at the upper outer periphery, and an opening at the lower side is formed. The cylinder is inserted in the hollow part of the cylinder, and the screw above the cylinder and the screw provided at the lower end of the fixing part are screwed together to assemble, and it extends when the temperature reaches a predetermined temperature, for example 70 ° C ± 5 ° C. The shape memory alloy spring is activated to support the spring. The retainer is opened and the shaft is dropped by the extension of the spring, and the firing pin breaks the sealing plate of the cylinder and injects the liquid gas that is filled by the drop, cooling the inside or the inside of the installed room and extinguishing fire and acid. An automatic fire extinguisher gas injector characterized by extinguishing the fire by a two-stage fire extinguishing system with missing fire.