KR20230107963A - Automatic fire extinguishing system with valve control structure - Google Patents

Abstract

The present invention relates to a small-sized automatic fire extinguishing device, and more particularly, to an automatic fire extinguishing device configured to eject an extinguishing agent in the event of a fire, including a tank body in which compressed extinguishing agent is stored, and fastened to the tank body to guide the extinguishing agent. a hollow guide head, a head connection unit fastened to the guide head, receiving the fire extinguishing agent from the guide head, and ejecting the fire extinguishing agent to the outside; Consisting of a housing fastened to the head connection unit and having an operating space therein, and a driving unit provided in the housing and ejecting the fire extinguishing agent of the tank body to the outside through the ejection pipe by cutting the blocking film in case of fire, By simplifying the structure of the automatic fire extinguishing device by configuring it so that the fire extinguishing agent is ejected by the operation of the solenoid valve, it is possible to effectively improve productivity, reduce cost, and prevent collisions between parts or malfunction in the process of ejecting the fire extinguishing agent in the event of a fire. There is an effect to be.

Description

Small automatic fire extinguishing system {Automatic fire extinguishing system with valve control structure}

The present invention relates to a small-sized automatic fire extinguishing device, and more particularly, by simplifying the structure of the automatic fire extinguishing device, effectively improving productivity, reducing costs, and preventing collisions between parts or malfunction in the process of ejecting an extinguishing agent in the event of a fire. It is about a small automatic fire extinguishing device that can be

In general, fire extinguishing devices that are triggered by thermal trigger elements when the ambient temperature rises above a normal and permissible level and release an extinguishing agent for extinguishing or fire-protection of a fire or The provision of firefighting equipment has been known for a long time. Since such devices have long been known in the form of sprinkler systems for the protection of large areas, in particular in the interior spaces of buildings, such as office spaces, living spaces, covered garages, etc., relatively long ago. There is also an increasing consideration and approach to using corresponding fire extinguishing devices and/or fire fighting equipment for the protection of smaller dimensioned spaces and volumes.

Thus, for example, DE 10 2009 023 422 A1 describes an electric structural component fitted in a housing, which in one embodiment comprises an electric reading light arranged in a vehicle, said electric reading light In the case of , because of the special fire hazard of the electrical component, a miniaturized fire extinguishing device suitable for extinguishing or preventing a fire occurring inside the housing through the release of an extinguishing agent is arranged inside the housing. For triggering the fire extinguishing device, thermal sensors have been proposed, which can be bimetallic or memory metal, for example. Mentioned here as an advantage of the sensor components is the possibility of making it possible to monitor the ambient temperature passively, in particular in a current-free state. However, a more precise description of the type and method of how the small fire extinguishing device described in DE 10 2009 023 422 A1 is constructed is not specified in the above German publication.

A further example of providing a locally concentrated fire extinguishing capability in fire risk areas of densely delineated spaces is described in DE 10 2011 087 608 B3. In this German publication, a laundry dryer with a passive extinguishing system is disclosed. In the case of the passive fire extinguishing system proposed in the German publication, the fire extinguishing agent storage tank is provided in the form of a container disposed in the center, and from this container, extinguishing agent lines are connected to various points that are sensitive and have a fire risk. The agent lines are closed with thermal trigger valves, so that in the event of a fire at any of the sensitive points, the valve at that point is opened and the agent is dispensed from a centrally located container. It can be fed to a possible fire source via a line and discharged to this fire source. For the thermal trigger elements of thermal trigger valves, the German publication exemplifies a so-called thermo-bulb, which is a tubular glass vessel filled with a thermal trigger liquid and closed on both sides, the thermal trigger liquid being , when the preset triggering temperature is reached or exceeded, the pressure formed expands the wall of the glass container in such a way that it bursts, thereby breaking the thermal trigger element and causing the opening of the valve.

As described above, it can be seen that there is an increasing need for a miniaturized fire extinguishing device and / or fire fighting equipment provided in a space that is specifically and correspondingly limited in scope and exposed to increased fire risk so that this space can be protected. .

However, in the conventional miniaturized fire extinguishing device to extinguish a fire, a spring compressed inside operates to cut the barrier of the tank when a fire occurs, thereby ejecting the extinguishing agent in the tank, but the internal structure for ejecting the extinguishing agent is complicated. As a result, there is a problem that cost increases and productivity decreases, and since cutting is performed by a compressed spring, there is a problem that malfunction due to friction or jamming frequently occurs.

The foregoing invention refers to the background art in the technical field to which the present invention belongs, and does not mean the prior art.

Utility Model Publication No. 1997-06853 (Announced on July 9, 1997) Korea Utility Model Registration No. 20-0400018 (2005.11.04. Notice) Korean Patent Publication No. 10-2016-0144977 (published on December 19, 2016)

The present invention has been made to solve the above conventional problems, and an object of the present invention is to simplify the structure of an automatic fire extinguishing device by configuring a fire extinguishing agent to be ejected by driving a solenoid valve, thereby effectively improving productivity and reducing costs. Its purpose is to provide a small-sized automatic fire extinguishing device that can reduce and prevent collisions or malfunctions between parts in the process of ejecting fire extinguishing agents in the event of a fire.

The present invention is an automatic fire extinguishing device configured to eject an extinguishing agent in the event of a fire, comprising: a tank body in which compressed extinguishing agent is stored; a hollow guide head fastened to the tank body to guide the extinguishing agent; and fastened to the guide head. a head connection unit that receives the extinguishing agent from the guide head and ejects it to the outside; a blocking film provided on the top of the guide head to block the ejection of the extinguishing agent; and fastened to the head connection unit and operating space inside. It is characterized in that it consists of a housing provided thereon, and a driving unit disposed in the housing, which cuts the blocking film in case of fire and ejects the fire extinguishing agent of the tank body to the outside through the ejection pipe.

In addition, the head connection unit is characterized in that a guide hole is formed to receive the fire extinguishing agent from the guide head, a locking jaw is provided on the inner surface, and a jet pipe is formed to communicate with the guide hole.

In addition, a head ring is further disposed on the head connection unit so as to be caught on the chin, so as to support the head cutter of the drive unit.

In addition, the drive unit includes a head cutting device disposed inside the housing, one end of which is fitted into the guide head, and cutting the blocking film to eject the fire extinguishing agent from the tank body when a fire occurs, and a driving unit operating the head cutting device. In the head cutter, a cutting shaft is formed to cut the blocking film, and an guiding inclined surface is further formed at an end of the cutting shaft to guide the fire extinguishing agent to the ejection pipe.

In addition, the driving unit is characterized in that it comprises a solenoid valve.

In addition, the housing is provided with a thermal sensor and a control unit, and the control unit receiving a signal from the thermal sensor controls the driving unit so that the fire extinguishing agent of the tank body is ejected through the ejection pipe.

The compact automatic fire extinguishing device of the present invention is configured so that the fire extinguishing agent is ejected by driving the solenoid valve, thereby simplifying the structure of the automatic fire extinguishing device, thereby effectively improving productivity and reducing costs.

In addition, the small-sized automatic fire extinguishing device according to the present invention minimizes obstacles on the path through which the extinguishing agent is ejected in the event of a fire, so that the extinguishing agent can be ejected more efficiently.

In addition, the small-sized automatic fire extinguishing device of the present invention has an effect of being able to prevent collisions between parts or malfunctions in the process of ejecting fire extinguishing agents in the event of a fire.

1 is a cross-sectional view showing a small automatic fire extinguishing device according to the present invention.
2 is a cross-sectional view showing a coupled state of a guide head and a head connection unit of a small automatic fire extinguishing device according to the present invention.
3 is a cross-sectional view showing a coupled state of a guide head, a head connection unit, and a head cutting machine of a small automatic fire extinguishing device according to the present invention.
4 is a cross-sectional view showing a head connection unit of a small automatic fire extinguishing device according to the present invention.
5 is a plan view showing a head connection unit of a small automatic fire extinguishing device according to the present invention.
6 is a conceptual diagram showing a control unit of a small automatic fire extinguishing device according to the present invention.
7 is a cross-sectional view showing an operating state of a small automatic fire extinguishing device according to the present invention.
8 is a partially enlarged cross-sectional view showing an operating state of a small automatic fire extinguishing device according to the present invention.

Since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea.

On the other hand, the meaning of terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element.

It should be understood that when an element is referred to as being “connected” to another element, it may be directly connected to the other element, but other elements may exist in the middle. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that no intervening elements exist. Meanwhile, other expressions describing the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to” should be interpreted similarly.

Expressions in the singular number should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to an embodied feature, number, step, operation, component, part, or these. It should be understood that it is intended to indicate that a combination exists, and does not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In each step, the identification code (eg, a, b, c, etc.) is used for convenience of explanation, and the identification code does not describe the order of each step, and each step clearly follows a specific order in context. Unless otherwise specified, it may occur in a different order than specified. That is, each step may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

1 is a cross-sectional view showing a small automatic fire extinguishing device according to the present invention. 2 is a cross-sectional view showing a coupled state of a guide head and a head connection unit of a small automatic fire extinguishing device according to the present invention. 3 is a cross-sectional view showing a coupled state of a guide head, a head connection unit, and a head cutting machine of a small automatic fire extinguishing device according to the present invention. 4 is a cross-sectional view showing a head connection unit of a small automatic fire extinguishing device according to the present invention. 5 is a plan view showing a head connection unit of a small automatic fire extinguishing device according to the present invention. 6 is a conceptual diagram showing a control unit of a small automatic fire extinguishing device according to the present invention. 7 is a cross-sectional view showing an operating state of a small automatic fire extinguishing device according to the present invention. 8 is a partially enlarged cross-sectional view showing an operating state of a small automatic fire extinguishing device according to the present invention.

As shown in the drawing, the small automatic fire extinguishing device 10 of the present invention (hereinafter referred to as an automatic fire extinguishing device for convenience of explanation) is an automatic fire extinguishing device 10 configured to eject an extinguishing agent in case of fire, and thus such an automatic fire extinguishing device 10 The fire extinguishing device 10 is composed of a tank body 20, a guide head 30, a head connection unit 40, a blocking film 50, a housing 60, and a driving unit 70.

The tank body 20 stores the compressed fire extinguishing agent therein.

An inlet of a tubular structure is provided at one end of the tank body 20 so that the fire extinguishing agent can be introduced or taken out, and a screw portion is provided on the outer periphery of the inlet.

As the fire extinguishing agent stored in the tank body 20, pentafluoroethane (HFC-125), hexafluoropropane (HFC-227ea), and NOVEC-1230 may be used. In addition, various fire extinguishing agents can be applied to extinguish the fire.

In addition, as the material of the tank body 20, since the fire extinguishing agent is stored in a pressurized state, steel tubes and steel strips may be used to withstand pressure, and metal or synthetic resin materials capable of withstanding a certain pressure may be used. possible.

The guide head 30 is fastened to the tank body 20 to guide the fire extinguishing agent.

The guide head 30 is formed in a hollow tubular shape, and a threaded portion is formed on the inner periphery of the lower end, and is detachably screwed into and fixed to the threaded portion formed at the inlet of the tank.

The guide head 30 connects the tank body 20 and the head connection unit 40 to each other.

The head connection unit 40 wraps around the upper part of the guide head 30 and inserts and fixes its lower end, and receives fire extinguishing agent from the guide head 30 and ejects it to the outside.

The head connection unit 40 has a guide hole 41 formed to receive the fire extinguishing agent from the guide head 30, a locking jaw 42 is provided on the inner surface, and an outer surface communicates with the guide hole 41. A blowout pipe 43 is formed.

The locking jaw 42 is formed in an annular shape, and the locking jaw 42 and the ejection pipe 43 are integrally formed or welded to the head connection unit 40 to be fixed.

As shown in the drawing, the ejection pipe 43 is formed in the middle of the head connection unit 40, and communicates with the guide hole 41 through the inner surface of the locking jaw 42.

At this time, a head ring 44 is further disposed on the head connection unit 40 so as to be caught on the locking jaw 42 to support the lower part of the head cutting machine 71 moved by the driving unit 70. .

The head ring 44 is formed of a synthetic resin material having elasticity so that the head cutting machine 71 is supported by elasticity when moving, and it is also possible to make it of a metal material or a synthetic resin material.

The head ring 44 is disposed on the upper surface of the locking jaw 42, and may be fixed by bonding to the upper surface of the locking jaw 42.

Here, the upper part of the guide head 30 and the head are connected by inserting and fixing the sealing ring while surrounding the upper part of the guide head 30 and fastening the head connection unit 40 to the guide head 30. It is preferable to place a sealing ring between the lower portions of the units 40 to maintain airtightness and improve bonding strength.

In addition, it is preferable that the inner diameter of the ejection pipe 43 formed in the head connection unit 40 be tapered so as to gradually increase toward the outer side so that the ejection range can be widened.

The blocking film 50 is provided on the top of the guide head 30 to block the ejection of the fire extinguishing agent.

The blocking film 50 is formed of a thin metal or synthetic resin material.

The blocking film 50 may be attached to and fixed to the upper portion of the guide head 30, and may be placed in a compressed state between the lower surface of the locking jaw 42 and the guide head 30.

The blocking film 50 and the upper part of the guide head 30 are caught and fixed to the lower surface of the hooking jaw 42 formed on the head connection unit 40 .

The housing 60 is screwed or attached to the top of the head connection unit 40 to be fixed, and an operating space is provided therein.

A driving unit 70 and a driving unit 72 are disposed in the working space of the housing 60 .

The housing 60 is made of a synthetic resin material, and may be made of a transparent material or an opaque material so that the internal structure and operating state can be checked.

The drive unit 70 is provided in the housing 60, and in the event of a fire, cuts the blocking film 50 to eject the fire extinguishing agent of the tank body 20 to the outside through the ejection pipe 43.

The driving part 70 is disposed inside the housing 60 and has one end inserted into the guide head 30, and cuts the blocking film 50 in case of fire to eject the fire extinguishing agent of the tank body 20. It consists of a head cutting machine 71 and a drive unit 72 for moving the head cutting machine 71, and a cutting shaft 711 is formed in the head cutting machine 71 to cut the blocking film 50, and the cutting An induced inclined surface 712 is further formed at an end of the shaft 711 to guide the fire extinguishing agent to the ejection pipe 43.

The cutting shaft 711 is integrally formed to protrude from the lower part of the head cutting machine 71, and the lower end of the cutting shaft 711 is disposed in a state of being fitted into the locking jaw 42, and the guide slope ( 712) is formed to face the ejection pipe 43 formed in communication with the guide hole 41, so that the drive unit 72 moves the head cutter 71 and the cutting shaft 711 downward when a fire occurs. When a part of the blocking film 50 is cut with the lower end of the cutting shaft 711, the fire extinguishing agent penetrates the blocking film 50 by internal pressure and is guided to the guide slope 712 while the ejection pipe through (43).

The guide slope 712 is inclined toward the ejection pipe 43 as it goes upward in the drawing.

A blade is formed at the lower end of the cutting shaft 711 by the guiding inclined surface 712, so that the blocking film 50 can be effectively cut.

It is also possible to further integrally form a separate cutting blade to perforate or cut the blocking film 50 at the lower end of the cutting shaft 711 .

In addition, as shown in the drawing, the lower part of the head cutter 71 is formed to be tapered in a conical structure, so that a part thereof may be fitted into the head ring 44.

The drive unit 72 is composed of a solenoid valve, which is an electromagnetic valve, and is disposed inside the housing 60.

The head cutting machine 71 is connected to the transfer shaft of the solenoid valve, and the head cutting machine 71 is moved downward by driving the solenoid valve to cut or perforate the blocking film 50 .

Alternatively, by making the driving part 72 consist of a cylinder, screwing the upper end of the head cutting machine 71 to the axis of the cylinder, so that the head cutting machine 71 is moved by driving the cylinder possible.

In addition to the solenoid valve and the cylinder, the drive unit 72 may use a device that drives a shaft by an electric signal.

The housing 60 is provided with a thermal sensor 61 and a controller 62, and when a fire occurs, the thermal sensor 61 detects heat and transmits the detection signal to the controller 62. The control unit 62 transfers a driving signal to the driving unit 72 and controls it to be driven, so that the driving unit 72 moves the head cutter 71 to cut the blocking film 50 so as to cut the tank body 20. The fire extinguishing agent is ejected through the ejection tube (43).

The thermal sensor 61 is fixed to the outer surface of the housing 60 to detect heat generated by a fire.

In addition, in the small-sized automatic fire extinguishing device according to the present invention, the head ring 44 may be configured in the form of a glass bulb. In this case, a spring (not shown) may be installed in the drive unit 70 instead of the solenoid valve 72 . The head ring 44 in the form of a glass bulb may be configured to be damaged by heat in the event of a fire.

As shown in FIG. 2, the head ring 44 may be hollow so that the cutting shaft 711 of the head cutter 71 can be inserted therein, and have a width capable of being supported by the locking jaw 42. can be configured.

That is, in the present invention, the head ring 44 must have a structure that can be supported by the locking jaw 42 while inserting the cutting shaft 711 of the head cutting machine 71, so that the head cutting machine 71 can be removed before a fire occurs. After a fire occurs while supporting it, it is possible to move the head cutting machine 71 downward.

In this configuration, when a fire occurs, the head ring 44 in the form of a glass bulb is broken, and the head cutter 71, which has been pressed by the spring, moves downward to cut the blocking film 50, so that the fire extinguishing agent can be ejected.

In addition, this configuration was introduced in the process of simplifying the structure of a small automatic fire extinguishing device, and with this configuration, obstacles on the extinguishing agent ejection path are minimized in the event of a fire, thereby improving the efficiency of extinguishing agent ejection.

Although the present invention has been described in detail so far, it is clear that the embodiments mentioned in the process are only illustrative and not limiting, and the present invention is the technical spirit or field of the present invention provided by the claims below. Within the range that does not deviate from, it will be said that component changes to the extent that can be equally coped with fall within the scope of the present invention.

10: automatic fire extinguishing device
20: tank body
30: guidance head
40: head connection unit
41: guide hole
42: snag
43: ejection pipe
44 : head ring
50: barrier
60: housing
61: thermal sensor
62: control unit
70: driving unit
71: head cutting machine
711: cutting shaft
712: guide slope
72: solenoid valve

Claims (6)

As an automatic fire extinguishing device designed to eject extinguishing agents in case of fire,
A tank body in which the compressed fire extinguishing agent is stored;
a hollow guide head fastened to the tank body to guide the fire extinguishing agent;
a head connection unit that is fastened to the guide head, receives the fire extinguishing agent from the guide head, and discharges the fire extinguishing agent to the outside;
a blocking film provided on the top of the guide head to block the ejection of the fire extinguishing agent;
a housing fastened to the head connection unit and having an operating space therein; and
A small automatic fire extinguishing device characterized in that it consists of a drive unit provided in the housing and cutting the blocking film to eject the fire extinguishing agent of the tank body to the outside through the ejection pipe when a fire occurs.
According to claim 1,
The small automatic fire extinguishing device, characterized in that the head connection unit has a guide hole formed to receive the fire extinguishing agent from the guide head, a locking jaw is provided on an inner surface, and a jet pipe is formed to communicate with the guide hole.
According to claim 1,
A small automatic fire extinguishing device according to claim 1 , wherein a head ring is further disposed on the head connection unit so as to be caught on the locking jaw to support the head cutting device of the drive unit.
According to claim 1,
The drive unit is disposed inside the housing, one end is inserted into the guide head, and a head cutting device that cuts the blocking film and ejects the fire extinguishing agent of the tank body when a fire occurs;
Includes a driving unit for driving the head cutting machine,
A small automatic fire extinguishing device, characterized in that a cutting shaft is formed in the head cutting machine to cut the blocking film, and an guiding inclined surface is further formed at an end of the cutting shaft to guide the fire extinguishing agent to the ejection pipe.
According to claim 4,
The driving unit is a small automatic fire extinguishing device, characterized in that it comprises a solenoid valve.
According to claim 4,
A small automatic fire extinguishing device characterized in that the housing is provided with a heat sensor and a control unit, and the control unit receiving the signal from the heat sensor controls the driving unit so that the fire extinguishing agent of the tank body is ejected through the ejection pipe. .