KR101748748B1

KR101748748B1 - Pressure container leakage monitoring system of fire-fighting equipment

Info

Publication number: KR101748748B1
Application number: KR1020150142636A
Authority: KR
Inventors: 노고섭
Original assignee: 주식회사 진화이앤씨
Priority date: 2015-10-13
Filing date: 2015-10-13
Publication date: 2017-06-19
Also published as: KR20170043205A

Abstract

The present invention can easily and routinely monitor whether the internal pressure of a high-pressure container storing a fire extinguishing agent (gas) is externally leaked or not, and when the fire occurs, The present invention relates to a pressure leak monitoring device for a fire extinguishing equipment container capable of being picked up by a signal, A check valve for closing the medicine delivery line is formed by a spring having an operating pressure set on the side of the differential pressure type gas valve discharge port of the container filled with the medicine in order to provide a pressure leak monitoring device for a fire extinguishing equipment container, An indicator that is displaced in conjunction with the indicator, Wherein the check valve assembly includes a micro switch that performs switching when the check valve assembly is coupled to the evacuated drug delivery line by a coupler sealingly engaged with the evacuated drug delivery line, And the output of the switch can be picked up as an external signal.

Description

Technical Field [0001] The present invention relates to a pressure container leakage monitoring system for fire-fighting equipment,

The present invention relates to a pressure leak monitoring device for a fire extinguishing equipment container, and more particularly, to a fire extinguishing device capable of easily and routinely monitoring whether the internal pressure of a high pressure container storing a fire extinguishing agent (gas) And more particularly, to a pressure leak monitoring device for a fire extinguishing equipment container capable of picking up a leak and a discharge situation by an electric signal so as to monitor whether or not the discharge is performed by a control panel.

The present invention is applied to a fire extinguishing system having a pressure vessel filled with an inert gas such as HALON as a fire extinguishing agent, and a fire extinguishing apparatus having all the pressure vessels that contain gas extinguishing agents.

Haron gas is used in fire extinguishing facilities and is comparatively expensive equipment such as computer room, substation room, etc., which is mainly installed in facilities where it is difficult to spray water and powder with fire extinguisher.

In order to ensure that such high-priced facilities are normally released at an urgent and appropriate time, such as in the event of a fire, the state of the inside of the pressure vessel should be constantly checked and controlled.

The conventional differential pressure type gas valve structure for evolving the gas to a chemical keeps the pressure of one side pressure chamber in which the needle bar is located equal to the pressure on the side of the vessel. When a fire occurs and operation is started, the rupture disk is pierced to discharge the pressure, and the line for evacuation is opened by the pressure on the container side due to the generation of the pressure difference with the container side, thereby discharging the extinguishing agent.

However, in the case of equipment that can not monitor leakage pressure when managing such pressure of the medicine depending on manpower, it depends on the degree of manual operation to perform bubble test for various screw joint parts, so that monitoring is uncertain and it is difficult there is a problem.

In order to solve the above-mentioned problem, the present applicant has found a "fire extinguishing agent leaking check device for fire extinguishing equipment" of Korean Utility Model Registration No. 447333.

According to the present invention, the micro-switch for detecting the gas leakage is provided with a sensor, and the two paths constituting the evacuant discharge passage are divided into a "Y" A gas rack body is formed and a plunger is built in the path of the sensor side so that the plunger operates the sensor in accordance with the leaking pressure of the plunger to monitor the leakage by energizing the sensor.

Such a plunger has a problem of difficulty in setting the position of the plunger in the initial setting operation, and it is difficult to reflect the design value of the plunger at a certain pressure.

Even if reinstallation is performed after the normal evolution operation, the plunger that has been moved is required to be retreated one by one, so that reuse is troublesome.

In addition, since the sensor is directly connected to the differential pressure gas valve, the sensor wiring is complicated and uneven, thus deteriorating the appearance of the facility.

On the other hand, Korean Patent Registration Nos. 1041581 and 1119122 disclose a device for monitoring leakage as another conventional technique.

It is known that a sealed housing is provided on both sides of a discharge port and leakage is detected in accordance with the introduction of the medicine into the housing.

In the former case, a floater (buoyant sphere) is built in the housing to detect leakage by a sensor constituting an electrical contact in accordance with the rise of the floater. In the latter case, And a sensor is incorporated to detect leakage.

However, forming such a housing separately increases the elements only for leakage, and in the case where the sealing of the housing container is insufficient, leakage can be made through the housing before sensor detection.

Further, in the case of the floater type, there is a structure in which it is difficult to expect the same reaction sensitively when a certain pressure is released, and in the case of sensing by an electrode short-circuit by the above-mentioned medicament, There are disadvantages.

KR 0447333 Y1 KR 1041581 B1 KR 1119122 B1

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above-mentioned problems of the prior art, and it is intended to solve the following problems.

The present invention provides a pressure leak monitoring device for a fire extinguishing equipment container in which a coupler and a check valve case for detecting leakage displacement are formed as a unit part in a conventional high pressure chemical tank without deformation and an additional facility is easily provided in new and existing facilities.

In the present invention, the operating pressure of the check valve for detecting the leakage displacement is designed by designating the spring, and it operates correctly only when a certain pressure or more acts, thereby improving the reliability. Provided is a container pressure leak monitoring device for an extinguishing facility that is easy to reuse after operation.

The present invention provides a pressure leak monitoring device for a fire extinguishing equipment container which is configured to flexibly ensure a linear operation of a check valve that is displaced due to partial leakage while preventing the discharge of the medicine.

The present invention relates to a fire extinguishing equipment container which can be reused by modularizing the parts to achieve the above object and which can separate wiring from the pressure vessel for detecting an electric leakage signal, A pressure leak monitoring device is provided.

According to an aspect of the present invention, there is provided an apparatus for discharging an extinguishing agent through a discharge port of a differential pressure type gas valve, comprising: a drug container filled with an extinguishing agent at a high pressure; A check valve for closing the drug delivery line with a spring having an operating pressure set on the side of the differential pressure type gas valve discharge port of the container filled with the medicine at a high pressure is formed in the check valve, A check valve assembly including an indicator that is displaced in accordance with a flange displacement and includes a micro switch that performs switching by displacement of an indicator is coupled with an evacuated drug delivery line as a coupler that is sealed, Leakage of the drug container when acting on the check valve The detected by being made to pick up the output of the microswitch to an external signal.

According to the present invention, the check valve assembly for detecting the leakage and displacement of the coupler and the leakage displacement of the existing high-pressure chemical tank is formed as a unit part, thereby facilitating the addition and repair of the existing facility. It is designed so that the pressure is defined as the leaking pressure, and it operates only when certain design pressure acts. Therefore, it has a high reliability effect and it is possible to flexibly ensure the linear operation of the check valve which makes displacement due to partial leakage, It is useful for detecting and evolving operation by forming a check valve assembly. It is possible to reuse the parts by modularization. It is possible to separate wires from the pressure vessel to detect electrical leakage signals, And the like.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a partial cross-sectional view of a coupled state showing a check valve assembly and a coupler according to one embodiment of the present invention; Fig.
FIG. 2 is a planar state diagram of the invention of FIG. 1; FIG.
3 is a partially enlarged cross-sectional view of a portion "A"
FIG. 4 is a state of use in which the invention of FIG. 1 is combined with a differential pressure type valve. FIG.
5 is a partial cross-sectional view of a coupled state showing a check valve assembly and a coupler according to another embodiment of the present invention.

Hereinafter, the technical construction of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 will be described.

A pressure gauge valve for discharging the medicine to be fastened to the upper port of the medicine container; and a monitoring device for checking the leakage port side of the extinguishing device for discharging the extinguishing agent through the discharge port of the differential pressure gas valve An elbow coupler 3 made of a piping material and fitted at both ends with adapters 2 and 2a having nuts 3a and 3b sandwiched therebetween, a flange 7a having a tapered circumferential surface, and a guide A check valve 7 having a shaft 7b is hermetically coupled to the valve seat so as to be embedded in the check valve case 6 so as to close the medicinal substance passage and to support the support 13 and the support shaft 13 for supporting the guide shaft 7b, The check valve case 6 has a nut portion 6a connected to an evacuation pipe from one end thereof and a screw portion 6a formed at the other end of the check valve case 6 at the lower end of the valve seat. And a checker 20 interlocked with the flange 7a of the check valve through the side surface of the check valve case 6 so as to engage with the nut 3b of the elbow coupler 3 in a screw- And a check valve assembly 1 for attaching a micro switch 14 to the checker 20 and outputting the micro switch 14 as a checker movement.

The checker 20 has a threaded portion that penetrates through the check valve case 6 and passes through the threaded portion and has an indicator 12 interposed therebetween through an airtight O-ring. The inner end of the checker 12 is connected to the check valve 7, and one end of the outer side is in contact with the rod 11 so as to cover the cover 9.

The support 13 is made up of a radial rib having a guide shaft 7a inserted in the center thereof to maintain the linear operation of the check valve while supporting the guide shaft 7a of the check valve 7 and the extinguishing medium discharge passage It is understood that it is a structure called the name of three-legged.

Sealing is carried out with an O-ring or a packing to block the leakage of the high-pressure extinguishing agent.

The operation of the embodiment of the present invention constituting the above-described configuration will be discussed first, and other embodiments will be described later.

According to the invention shown in Figs. 1 to 4, the gas pressure of the medicine container 80 provided with the conventional differential pressure type gas valve 90 is set in the needle adapter 92 by a fire detection operation (manual or automatic) When a needle (not shown) punctures the rupture disc 93 and lowers the pressure in the pressure chamber 94 closed by the drain nut 95 to atmospheric pressure, the high pressure in the vessel 80 pushes the oscillator sheet packing 96 The hermetically sealed state is released, and the high-pressure medicine is discharged to the discharge port 91. [

At this time, according to the present invention, the check valve 7 is pushed up through the vent hole of the elbow coupler 3 coupled to the discharge port 91 with the nut 3a, and the triple support 13 is fastened to the durability nut portion 6a Along with the evacuation piping, chemical dispensing and spraying is performed in the fire place, so that it works to fire fire.

On the other hand, the present invention effectively works in a normal state before a fire occurs.

That is, when the pressure in the seat packing 96 on the side of the medicine discharge port 91 coupled to the elbow coupler 3 and the pressure chamber 94 for pressing the packing are firmly maintained, the gap between the sheet packing 96 The high pressure gas in the vessel 80 is maintained while preventing leakage.

However, if an abnormality such as a change in the internal pressure of the container or a decrease in the internal pressure of the pressure chamber 94 occurs due to the storage year of the facility or other outside temperature conditions, the medicine in the container 80 may leak into the gap of the sheet packing 96 do.

At this time, when a leaking pressure is transmitted to the flange 7a of the check valve 7 of the check valve assembly 1 coupled to one end of the elbow coupler 3 of the present invention and the pressure of the built-in spring 16 is reached, 7 of the checker 20 is moved to cause the chemical agent to leak out. This chemical agent leakage state is transmitted to the indicator 12 of the checker 20 installed in contact with the moving flange 7a to cause movement of the indicator, The micro switch 14 is actuated so that the leakage state is outputted to the outside as an electrical signal and the output is detected by the control panel to recognize the drug leaking situation.

When the pressure in the elbow coupler 3 is removed after the leakage element is maintained by monitoring the leakage condition, the check valve 7 is returned to come into close contact with the valve seat by the resilient force of the spring 16, The switch returns to the resilient force, which is re-set to enable repeated use by simply removing the pressure inside the piping and then maintaining the piping airtightness again.

The adapters (2, 2a) are interposed to prevent leakage during piping connection.

The support 13 supporting the guide shaft 7a is fixed by a spring 16 in the check valve case 6 so that the check valve 7 is not twisted but linearly operated.

Next, another embodiment of the present invention will be described with reference to FIG.

This embodiment is characterized in that the above-described embodiment is constituted by assembling the check valve and the checker separately by separately constituting a module in which check valves and checkers are assembled on a single part of the check valve assembly 1.

The check valve case 60 having the flange 70a and the guide shaft 70b rising from the flange on the seat of the check valve case 60 joined to the discharge port 91 side of the differential pressure type gas valve 90 with the fastening nut 30a inserted therebetween, A valve 70 is mounted and a spring 160 is interposed between the supporter 130 and the supporter 130 to support the linear motion of the guide shaft and a check valve) The nut portion 32 of the elbow coupler 30 is passed through the side surface of the nut portion 32 and the other end of the elbow pipe 34 welded to the nut portion. And a check valve assembly 10 formed by screwing a checker 200 interlocked with the guide shaft 70b of the check valve and attaching a micro switch 14 to the checker 200 and outputting the micro switch 14 as a checker movement .

The checker 200 has a threaded portion passing through the nut portion 32 and passing through the threaded portion and having an indicator 120 interposed therebetween through a hermetically sealed O-ring. The inner end of the checker 120 is connected to the check valve 7 The tapered guide shaft 70b of the tapered guide shaft 70b of the tapered guide shaft 70b has a tapered end and the outer end of the tapered guide shaft 70b is orthogonal to the rod 110 and is in contact with the cover bolt 190.

The center through hole of the cover bolt 190 is formed of a pin hole for pushing the operated indicator 120 in place.

The operation of the other embodiment of the invention described above is also largely similar to the invention of the embodiment described above.

The check valve 70 and the checker 200 of the check valve assembly 10 are separated and joined to each other so that the elbow coupler 30 does not touch the side of the differential pressure gas valve but is formed on the side of the evacuation pipe .

When the pressure of the container 80 is released via the oscillator sheet packing 96 as described above, if the check valve spring 160 releases a certain pressure or more, the check valve 70 is pushed out, An indicator 120 constituted by abutting on the shaft 70b by a tapered surface moves in conjunction with this movement and the opposite side end pushes the rod 110 touching the microswitch 14 to generate an output of the microswitch 14, And transmits the leak condition.

After the leakage restoration is completed and the pressure in the check valve assembly is removed, a pin is inserted from the outside by a pin hole in the center of the cover bolt 190, and the indicator 120 is pushed back to restore the original value and reuse.

1, 10: Check valve assembly 2, 2a: Adapter
3, 30: elbow coupler 3a, 3b, 30a, 34: nut
6, 60: Check valve case 7, 70: Check valve
9: cover 11, 110: rod
12, 120: Indicators 13, 130: Support
14: Micro switch 20, 200: Checker
90: Gas valve 190: Cover bolt

Claims

A differential pressure type gas valve for discharging the medicine to be fastened to the upper port of the medicine container and a leak port on the discharge port side of the extinguishing equipment for discharging the extinguishing agent through the discharge port of the differential pressure type gas valve are checked The monitoring device comprising:
The pressure leak monitoring device of the fire extinguishing equipment container comprises an elbow coupler (3) which is made of piping material and is connected to both ends with adapters (2, 2a) with nuts (3a, 3b) inserted therebetween, a flange (7a) And a check valve 7 having a guide shaft 7b standing at the center of the flange are hermetically coupled to the valve seat so as to close the medicament passage and the support of the guide shaft 7b and the medicament movement The support (13) is formed by inserting a spring (16)
The check valve case 6 has a nut portion 6a connected to the evacuation pipe at one end and a screw at the lower end of the valve seat at the other end so as to be engaged with the nut 3b of the elbow coupler 3 In addition,
A check valve for closing the drug delivery line with a spring having an operating pressure set on the side of the differential pressure gas valve outlet of the container filled with the medicine at a high pressure,
An indicator interlocking with the check valve flange displacement to make a displacement,
A check valve assembly including a micro switch for switching to a displacement of the integrator,
Wherein the micro switch is coupled to the evacuated drug delivery line as a sealed coupler to detect a leakage of the drug container when the leak pressure or more to be monitored is applied to the check valve and to pick up the output of the micro switch as an external signal Pressure - leak monitoring device for fire - extinguishing equipment containers.

The method according to claim 1,
And a checker 20 interlocked with the flange 7a of the check valve through the side surface of the check valve case 6 is screwed to attach the micro switch 14 to the checker 20, Wherein the check valve assembly (1) comprises a check valve assembly (1).

The method of claim 2,
The checker 20 has a threaded portion that penetrates through the check valve case 6 and passes through the threaded portion and has an indicator 12 interposed therebetween through an airtight O-ring. The inner end of the checker 12 is connected to the check valve 7. The pressure leak monitoring device for a fire extinguishing system container according to claim 1, wherein the cover (9) is in contact with a tapered circumferential surface of the rod (11).

The method according to claim 1,
The support 13 is formed of a radial rib having a guide shaft 7a at its center and a guide shaft 7a at its center so as to maintain the linear operation of the check valve while supporting the guide shaft 7a of the check valve 7 and the extinguishing medium discharge passage A pressure leak monitoring device in a fire extinguishing system container.

The method according to claim 1,
The pressure leak monitoring device of the fire extinguishing equipment container is provided with a flange 70a and a flange 70a which are mounted on a seat of a check valve case 60 fitted with a tightening nut 30a from the discharge port 91 side of the differential pressure gas valve 90 A check valve 70 having a guide shaft 70b is mounted and supported by a support 130 via a spring 160 so as to support a guide shaft linear motion,
An elbow coupler 30 having a nut portion 32 screwed to the outer diameter of the check valve case 60 and supporting the support 130 and a coupling nut 34 coupled to the other end of the elbow pipe welded and fixed to the nut portion, Lt; / RTI >
A checker 200 interlocked with the guide shaft 70b of the check valve through a side of the nut 32 of the elbow coupler 30 is screwed to the checker 200 and a micro switch 14 And a check valve assembly (10) for attaching the check valve assembly and outputting it as a checker movement.

The method of claim 5,
The checker 200 has a threaded portion passing through the nut portion 32 and passing through the threaded portion and having an indicator 120 interposed therebetween through a hermetically sealed O-ring. The inner end of the checker 120 is connected to the check valve 7 And the other end of the cover bolt 190 is in contact with the rod 110 so that the cover bolt 190 is in contact with the rod 110. The cover bolt 190 Through the central through hole of the fire extinguishing vessel.