KR102154675B1 - automatic fire extinguishing system for small space with glass bulb hit device - Google Patents

Abstract

The present invention relates to an automatic fire extinguishing system for a small space having a glass bulb breaking device for ejecting a fire extinguishing agent through a barrier membrane without a decrease in the power of a compression spring by one-way rotation of a breaking rod due to expansion of the compression spring while breaking the glass bulb by using the breaking rod.

Description

Automatic fire extinguishing system for small space with glass bulb hit device}

The present invention has a breakage operation device for a glass bulb that blows through the barrier membrane and ejects fire extinguishing agent without weakening the force of the compression spring by one-way rotation of the broken bar due to expansion of the compression spring at the same time by hitting the glass bulb with a break rod. It relates to an automatic fire extinguishing system for small spaces.

As a conventional automatic fire extinguishing device for a small space, for example, what is known in the patent document filed by the present applicant (Korean Publication No. 10-2019-0130862) has been proposed (see FIGS. 10 and 11).

The automatic fire extinguishing device 100 for small spaces of Patent Document 1 (Korean Publication No. 10-2019-0130862) is when fire occurs in a switchboard installed in an electrical room, various equipment, or distribution boxes, substations, refrigerators, server racks, and panels for electricity. The fire extinguishing agent is ejected and extinguished by a blow, and when a fire occurs while installed in a small space, the heat is transferred through the scattering hole 113 of the housing body 111 to the fixture 135 and the glass bulb support 140 The glass bulb 150 installed in between is broken and the compression spring 120 compressed between the inner upper end of the housing body 111 and the striking member 130 is restored, and the striking member 130 in which the fixture 135 is installed is extinguished. Move to the side where (200) is located. At this time, the glass bulb support 140 supported by the fixing pin 160 is moved by the elastic force of the compression spring 120 without moving, and the hitting member 130 is moved, and the hitting pin ( 136) instantaneously strikes the blocking film 210 blocking the entrance of the fire extinguishing container 200 to rupture.

As the blocking film 210 is ruptured, the extinguishing agent stored in a compressed state in the fire extinguishing container 200 is ejected through the ruptured place of the blocking film 210 and scatters while passing through the scattering hole 113.

However, even in the case of the automatic fire extinguishing device of the glass bulb type, it takes a considerable amount of time for the heat to reach a certain temperature when the heat-sensitive liquid reaches a certain temperature to be transferred from the flame, making it difficult to initially extinguish the fire. There is a problem that the suppression is more difficult.

Currently, the operating temperature of the glass bulb is 68℃, but it must be substantially 180~210℃ before it is broken and burned, and then the cow that extinguishes the fire is lost and the barn is fixed.

As another conventional technique for solving such a problem, a known patent document (Korean Publication No. 10-2012-0134353) is proposed (see FIGS. 12 and 13).

The smart head automatic operation device of a firefighting device of Patent Document 2 (Korean Publication No. 10-2012-0134353) is a spring installed in a vertical direction by installing a small solenoid valve 41 on the valve body 21 After installing the solenoid valve shaft 42 to pass through 43, a break rod 44 is installed under the spring 43.

When the solenoid valve 41 is connected to the controller connected to the fire detector and the solenoid valve 41 operates according to a signal from the controller at the moment of fire, the breakage rod 44 breaks the glass bulb 34 and breaks away, the spinneret 213 ), the restraint of the vertical rod 31 that was closing) is released, and the vertical rod 31 pushes the horizontal rod 32 to the inclined surface 31a formed at a 45° angle by the elastic restoring force of the compression spring 23 It rises and the spinneret 213 is opened.

When the spinneret 213 is opened in this way, the compressed gas or powdered medicine of the fire extinguishing container 1 momentarily rises through the siphon tube 11 and is injected to the outside through the spinneret 213 to extinguish the fire at the beginning. do.

However, since the internal pressure of the fire extinguishing container 1 is supported by only one glass bulb 34, there is a high risk of malfunction before the fire occurs due to defects of the glass bulb 34 or the like.

On the other hand, the broken rod 44 of Patent Document 2 can be applied to the fire extinguishing device of Patent Document 1, but the following problems may occur.

Patent Document 2 is a structure in which the broken rod 44 is installed inside the frame 33 to strike the glass bulb 34, so the broken rod 44 of Patent Document 2 is inside the housing body 111 of Patent Document 1 In the case of this arrangement, when the glass bulb is broken and the compression spring 120 is operated, a large impact is applied to the broken rod 44.

Therefore, when the force of the spring applies a significant impact to the broken bar 44 that rises and descends only in the vertical direction, the break bar 44 is bent or broken, but the force of the spring is consumed so that the penetration force of the blocking film is very weak.

If the penetrating power of the barrier membrane is weak, it is difficult to eject sufficient extinguishing agent because the extinguishing agent is not properly ejected from the fire extinguishing container, which may cause a big problem in that initial fire extinguishing cannot be performed.

Korean Publication No. 10-2019-0130862 Korean Publication No. 10-2012-0134353

In order to solve the above-described problem, the present invention allows forcibly hitting the glass bulb with the broken rod, and does not lower the force of the compression spring due to the interference of the broken rod after the hit, and a glass bulb that ejects the fire extinguishing agent with sufficient penetration force of the blocking film. It is to provide an automatic fire extinguishing system for small spaces with a breakage operation device of.

In order to achieve the above object, the automatic fire extinguishing system for small spaces having the glass bulb breakage operation device according to claim 1 of the present invention is installed in a distribution box or the like, and for small spaces including a glass bulb between the striking member and the compression spring. Automatic fire extinguishing system; A breakage operation device that breaks the glass bulb; An automatic fire extinguishing system for a small space including a bracket on which the damage operation device is installed while being supported by the automatic fire extinguishing device for a small space, wherein the damage operation device includes an electromagnetic valve operated from an external control such as a fire, and the electronic Including; a broken actuating rod descending according to the operation of the valve, a broken rod hitting the glass bulb, and a connection part connecting the lower end of the broken actuating rod and the upper end of the broken rod, wherein the connection part is at the lower end of the broken actuating rod A U-shaped concave portion is formed and the upper end of the broken rod is disposed, a hinge pin connecting the concave portion and the broken rod, and when the compression spring is released, the broken rod is pushed out only in a direction hitting the broken rod. And a torsion coil spring that elastically presses the broken rod against the concave portion in a non-rotating direction of the broken rod, and the broken rod rotation allowable portion has an upper end surface of the broken rod being the concave portion. Consists of a rotatable chamfer which is in contact with the upper surface but chamfered on one side.

In the automatic fire extinguishing system for small spaces having the device for operating the breakage of the glass bulb according to claim 2 of the present invention, a positioning chamfer is formed on one side of the outer circumferential surface of the recessed portion to determine the position of the rotational direction of the broken bar, and the bracket A first bracket plate on which one side of the solenoid valve is installed, and a second bracket plate bent in the first bracket plate and supported by the small space automatic fire extinguishing device, wherein the second bracket plate has the positioning surface It is characterized in that it comes into contact with the mounting.

In the automatic fire extinguishing system for small spaces having the device for operating the breakage of the glass bulb according to claim 3 of the present invention, it is preferable that the angled groove in which the torsion coil spring is disposed is further formed in the longitudinal direction of one side of the breakage rod.

In the automatic fire extinguishing system for a small space having a device for operating the breakage of the glass bulb according to claim 4 of the present invention, the automatic fire extinguishing device for the small space includes a fire extinguishing container containing a fire extinguishing agent, a blow nozzle part through which the fire extinguishing agent is ejected , One end of the fire extinguishing container includes an elbow pipe connected to the striking nozzle, and a pressure gauge installed on the elbow pipe, and a blocking film for blocking the fire extinguishing agent is installed at the other end of the elbow pipe.

According to the present invention, there are the following effects.

When the glass bulb is broken, the striking pin is moved by the restoring force of the compression spring, and the fire extinguishing agent is injected through the barrier to quickly extinguish internal fires such as distribution boxes, and when the temperature is reached, the glass bulb is forcibly removed by setting the fire detection temperature. Since the broken rod rotates without lowering the force of the restored compression spring, it maintains the penetrating power of the barrier film and can quickly extinguish the fire with sufficient injection of extinguishing agent.

In addition, by not only forming a rotatable chamfer so that the broken rod rotates in one direction, but also by elastically pressing it in a non-rotating direction with a torsion coil spring, it is possible to accurately strike and damage the glass bulb without being bent.

In addition, a positioning chamfer is formed on one side of the outer circumferential surface of the concave portion of the damaged actuating rod, and the positioning chamfer is disposed in contact with the surface of the bracket, so that it is accurately assembled to the bracket at a position allowing rotation only in one direction of the broken rod.

In addition, since an a-shaped groove is formed in the longitudinal direction of one side of the broken rod, it is not only not interfered with the groove portion when rotating due to the acceptance of the torsion coil spring, and the other end of the torsion coil spring can be stably held.

In addition, since the fire extinguishing container and the hitting nozzle part are connected using an elbow pipe, it is possible to arrange the hitting nozzle part as close as possible to a point where there is a risk of fire, so that fire suppression efficiency can be greatly increased even in low temperature detection.

In addition, by using an elbow pipe, it is possible to install a pressure gauge, so it is possible to visually check and manage the state of the drug inside the fire extinguishing container at all times.

1 is a front view schematically showing an automatic fire extinguishing system for a small space according to a preferred embodiment of the present invention.
2 to 4 are front cross-sectional views showing the operating state of FIG.
5 and 6 are perspective views showing the automatic fire extinguishing device for a small space of FIG. 1, according to the position of the pressure gauge.
7 and 8 are perspective views showing before and after hitting the damaged operating device of FIG.
Figure 9 is a perspective view showing the main part of the breakage operation device separated.
10 and 11 are cross-sectional views showing before and after the operation of a conventional automatic fire extinguishing device for a small space.
12 is a cross-sectional view showing the overall configuration of a smart head automatic operation device of another conventional fire extinguishing device,
13 is a cross-sectional view showing a spinneret in the automatic operation device of the smart head of the fire extinguishing device of FIG. 12;

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, but the same reference numerals are assigned to the same parts as those of the prior art, and detailed descriptions are omitted.

1 is a front view schematically showing an automatic fire extinguishing system for a small space according to a preferred embodiment of the present invention, FIGS. 2 to 4 are front cross-sectional views showing the operating state of FIG. 1, and FIGS. 5 and 6 are A perspective view showing an automatic fire extinguishing device for a small space, which is a perspective view according to the position of a pressure gauge, and FIGS. 7 and 8 are perspective views showing before and after hitting the damage operating device of FIG. 1, and FIG. 9 is It is an isolated perspective view.

The automatic fire extinguishing system for small spaces according to the present embodiment is an artificial intelligent fire extinguishing system that can initially extinguish a fire in a closed box or a fire in an unrecognized space by finding small embers.

At present, the operating temperature of the glass bulb at 68°C must rise from 180 to 210°C to destroy it. An exception would be the case of direct fire detection, but in the event of a fire in an indirect part, it cannot be prevented from a large fire because of the contradiction, since it can only be extinguished by the burnt burnout.

As a creative way to solve such a problem, for example, by setting the fire detection temperature, when the temperature (eg 55℃) is detected, a fire predictive warning (a visual warning light is activated in the field, and the manager is communicated through an app) It can give a signal, so you can prevent a fire in advance.

If high temperature is detected after preliminary low temperature detection (e.g. 85℃), it is judged as a fire and forcibly destroys the glass bulb to extinguish the initial material to prevent a large fire. At this time, other signals (eg ESS power off) can be given to prevent large-scale fires.

This is the early digestion system of a new paradigm that can become a leader in the era of the 4th industrial revolution.

Referring to FIG. 1, the automatic fire extinguishing system for a small space according to the present embodiment includes a small space automatic fire extinguishing device 100 installed inside a sealed box, and a glass bulb 150 of the small space automatic fire extinguishing device 100. It includes a breakage operation device 400 that is forcibly damaged, and a bracket 600 on which the breakage operation device 400 is installed while being supported by the automatic fire extinguishing device 100 for a small space.

Small space automatic fire extinguishing device 100, as shown in Figs. 1, 2, 6, and 7, a striking nozzle unit 170 forming the outer shape, and a fire extinguishing container 200 stored in a compressed state of the fire extinguishing agent Including, but it is preferable that the elbow pipe 180 connecting the hitting nozzle unit 170 and the fire extinguishing container 200 is further included.

The striking nozzle unit 170 includes a housing 110 including a housing body 111 having a scattering hole 113 through which the fire extinguishing agent is scattered and a connection pipe 114 coupled to the housing body 111; A compression spring 120 installed on the inner upper portion of the housing body 111; A hitting member 130 installed inside the housing 110; It includes a glass bulb 150 installed in the striking member 130.

The striking member 130 includes a striking member body 131 having a slot-shaped ejection hole 133, a fixture 135 and a striking pin 136 installed in the upper and lower portions of the striking member body 131, and a striking member body It includes a glass bulb support 140 disposed in the 131, and a fixing pin 160 coupled to the connection pipe 114 to receive the glass bulb support 140 while passing through the striking member body 131.

The elbow pipe 180 not only allows the striking nozzle 170 to be placed close to the ignition point as much as possible, but also allows the installation of the pressure gauge 190 so that the manager visually checks the state of the extinguishing agent in the fire extinguishing container 200 Can be managed.

When the elbow tube 180 is used, a blocking film 181 is installed at the other end thereof.

Of course, when the fire extinguishing container 200 is directly connected to the blow nozzle unit 170, the blocking film 210 is installed on the fire extinguishing container 200 as in the prior art, and in this case, a pressure gauge is not installed.

As shown in Figs. 7 to 9, the damage actuating device 400 includes a solenoid valve 410 operated from external control such as a fire, and a broken actuating rod 430 that descends according to the operation of the solenoid valve 410. And, it includes a broken rod 450 hitting the glass bulb 150, and a connection portion 470 connecting the lower end of the damaged rod 430 and the upper end of the broken rod.

The connection part 470 is formed at the lower end of the damaged operation rod 470 to connect the U-shaped groove 471 in which the upper end of the damaged rod 450 is disposed, and the groove 471 and the damaged rod 450 The hinge pin 475 to be released, the damaged rod rotation allowable portion 477 that allows rotation of the damaged rod 450 only in the direction of pushing and pushing the damaged rod 450 when the compression spring 120 is released, and a groove portion It includes a torsion coil spring 479 for elastically pressing the damaged rod 450 against the 471 in the non-rotating direction of the damaged rod.

The concave portion 471 is formed larger than the diameter of the damaged operation rod 430.

The concave groove 471 has a U-shaped opening below and left and right.

The damaged rod rotation allowable portion 477 is made of a rotation allowable chamfer 477 in which the upper surface 451 of the damaged rod 450 abuts the upper surface 472 of the concave groove 471 but one side is chamfered.

Although the rotation allowable chamfer 477 is in the form of a chamber, it exhibits the same effect even when implemented with convex rounding.

If the top surface 451 of the broken rod 450 is rotated toward the side (in the direction in which the compression spring is compressed) in contact with the upper surface 472 of the concave portion 471, it cannot be rotated.

The torsion coil spring 479 is elastically pressed against the direction in which the broken rod 450 is rotated, so that the glass bulb 150 is not bent and accurately strikes the glass bulb 150 while maintaining a linear shape.

On the other hand, as shown in FIG. 9, it is preferable that an a-shaped groove 453 in which the torsion coil spring 479 is disposed is further formed in the longitudinal direction of one side of the broken rod 450.

The a-shaped groove 453 is a space in which the torsion coil spring 479 is accommodated, and prevents interference as much as possible when the broken rod 450 rotates with respect to the concave groove 471.

As shown in FIG. 1, the bracket 600 is formed by first and second bending at the first bracket plate 610 on which one side of the solenoid valve 410 is installed and the first bracket plate 610 It includes a second bracket plate 630 to which the striking nozzle part 170 of the space automatic fire extinguishing device 100 is fitted and supported.

Of course, the bracket 600 is bent at 90 degrees at the third bracket plate 650 and the third bracket plate 650 bent at 90 degrees at the end of the second bracket 630 so that the first and second bracket plates 610 ( It further includes a fourth bracket plate 670 parallel to the 630.

Accordingly, the second and fourth brackets 630 and 670 are fitted to the tip of the striking nozzle part 170, and fixed or loosened by tightening the screw 640 fastened to the third bracket plate 650 may be removed.

The fourth bracket plate 670 is further provided with a temperature sensor TS, so that the temperature sensing inside the sealed box is as close as possible to be transmitted to the controller.

On the other hand, a positioning chamfer 471a is formed on one side of the outer circumferential surface of the concave groove 471 to determine the position of the broken rod 450 in the rotation direction.

The positioning chamfer 471a is assembled to abut the second bracket plate 630 as shown in FIG. 1.

That is, when the solenoid valve 410 is fastened to the first bracket 610, the positioning surface mounting portion 471a is assembled to abut the second bracket plate 630.

Therefore, when the compression spring 120 is restored, the damaged rod 450 is securely positioned only in the direction in which it is rotated along the rotation allowable chamfer 477 to prevent misassembly.

The operation of the automatic fire extinguishing system for a small space according to this embodiment will be described with reference to FIGS. 2 to 3.

First, before the fire occurs, the lower end of the broken rod 450 is disposed at a position as close as possible to the glass bulb 150 through the scattering hole 113 and the ejection hole 133 as shown in FIG. 2.

When a fire occurs in this state, the temperature sensor TS senses the temperature and sends it to the control unit, and the damage operation device 400 operates as shown in FIG. 3.

That is, when the solenoid valve 410 is operated and the damaged operation rod 430 is lowered, the damaged rod 450 strikes the glass bulb 150 and breaks it.

When the glass bulb 150 is broken, the compression spring 120 in a compressed state pushes the striking member 130 downward by the restoring force as shown in FIG. 4.

That is, the glass bulb support 140 does not move by the fixing pin 160, and the hitting member body 131, the fixing body 135, and the hitting pin 136 are pushed by the elastic restoring force.

The elastic restoring force of the compression spring 120 pushes the broken bar 450 together, and thus the broken bar 450 is naturally rotated toward the allowable chamfer 477 with respect to the hinge shaft 475, thereby providing elastic restoring force. In a state that is not weakened, the striking pin 136 penetrates the blocking film 181.

The present invention is not limited to the specific preferred embodiments described above, and any person of ordinary skill in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims can implement various modifications. Of course, it is added that such changes will fall within the scope of the claims description.

100: small space automatic fire extinguishing device 120: compression spring
136: striking pin 150: glass bulb
170: striking nozzle part 180: elbow pipe
190: pressure gauge 200: fire extinguishing container
400: damaged operating device 410: solenoid valve
430: damaged operating rod 450: damaged rod
470: connection portion 471: concave portion
471a: positioning surface mounting 475: hinge pin
477: Damaged rod allowable rotation part (rotation allowable surface mounting)
479: torsion coil spring 600: bracket

Claims (4)

An automatic fire extinguishing device for small spaces installed in the distribution box and the like and including a glass bulb between the striking member and the compression spring; A breakage operation device that breaks the glass bulb; As an automatic fire extinguishing system for a small space comprising a; bracket in which the damage operation device is installed while being supported by the automatic fire extinguishing device for the small space,
The breakage operation device includes a solenoid valve operated from an external control such as a fire, a broken actuating rod descending according to the operation of the solenoid valve, a broken bar hitting the glass bulb, a lower end of the broken actuating rod and an upper end of the broken bar Including;
The connection portion is formed at the lower end of the broken operation rod, a U-shaped recessed portion in which the upper end of the broken rod is disposed, a hinge pin connecting the recessed portion and the broken rod, and the broken rod when the compression spring is released And a torsion coil spring for elastically pressing the damaged rod toward the non-rotating direction of the damaged rod against the concave portion, and a damaged rod rotation allowable portion allowing rotation of the damaged rod only in a direction hitting against and pushing,
The automatic fire extinguishing system for a small space having a breakage operation device of a glass bulb consisting of a rotation allowable chamfer in which the top surface of the broken rod rotation allowable part abuts against the upper surface of the concave groove part and one side of the broken rod is chamfered.
The method according to claim 1,
On one side of the outer circumferential surface of the groove portion, a positioning chamfering portion is formed to determine the position of the broken rod in the rotational direction,
The bracket includes a first bracket plate on which one side of the solenoid valve is installed, and a second bracket plate bent at the first bracket plate and supported by the small space automatic fire extinguishing device,
An automatic fire extinguishing system for a small space having a device for operating a breakage of a glass bulb, characterized in that the second bracket plate is in contact with the positioning chamfer.
The method according to claim 2,
An automatic fire extinguishing system for small spaces having a breakage operation device of a glass bulb in which an angled groove in which the torsion coil spring is disposed is further formed in a longitudinal direction of one side of the breakage rod.
The method according to any one of claims 1 to 3,
The automatic fire extinguishing device for the small space includes a fire extinguishing container containing a fire extinguishing agent, a blow nozzle part through which the fire extinguishing agent is ejected, an elbow pipe connected to the fire extinguishing container and the other end to the striking nozzle, and the elbow pipe. Including a pressure gauge to be installed,
Automatic fire extinguishing system for small spaces having a breakage operation device of a glass bulb in which a blocking film is installed at the other end of the elbow pipe to block the fire extinguishing agent.

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