KR20120052002A - Apparatus for closeing and opening deluge valve of fire-fighting equipment - Google Patents

Abstract

PURPOSE: An opening-closing apparatus for a deluge valve for a fire extinguishing equipment is provided to improve the reliability of a closing process after using the deluge valve. CONSTITUTION: An opening-closing apparatus for a deluge valve for a fire extinguishing equipment includes a secluding valve(110), a connection line(120), a first opening-closing valve(130), a branch line(140), and a second opening-closing valve(150). The secluding valve is installed on the front side of an inflow chamber for controlling the inflow of fire extinguishing water. A connection line connects the inflow chamber to a diaphragm chamber, and includes a check valve for flowing the fire extinguishing water toward the diaphragm chamber. The first opening-closing valve installed on a discharging line branched from the connection line, and controls the discharge of the fire extinguishing water. The branch line is connected to the connection line after being branched from the tip-end of the secluding valve. The second opening-closing valve is installed on the branch line for controlling the flow of the fire extinguishing water toward the diaphragm chamber.

Description

Opening / closing device for fire valves for fire fighting equipment {APPARATUS FOR CLOSEING AND OPENING DELUGE VALVE OF FIRE-FIGHTING EQUIPMENT}

The present invention relates to an opening and closing device of the firefighting device Deleuze valve, firefighting device is configured to close accurately by causing the pressure difference between the top and bottom of the diaphragm after operation due to the fire or after testing of the firefighting equipment. An opening and closing device of a deleuze valve for a facility.

In general, a fire extinguishing facility is provided with a deluge valve (Deluge valve) to supply fire water in the case of fire, in the case of ships to use the sea water due to the geographic characteristics of the offshore platform as a fire.

Therefore, the diaphragm type is applied to the ship's fire-fighting deluge valve for minimizing the effects of seawater corrosion.

Since the conventional diaphragm type deluge valve is used only in the case of a fire or a test of a fire-fighting system, it should be closed in a general case, and for this purpose, a firefighter is discharged from the inlet chamber of the fire-fighting side into the diaphragm chamber. Is supplied to close the diaphragm by pressing it.

 However, when closing the deleuze valve in the open state, the hydraulic pressure by the firefighter acts equally between the inflow chamber side and the diaphragm chamber side due to the structure of the valve, so that there is no pressure difference between the top and bottom of the diaphragm. There was a problem that often occurs when not closed.

The present invention is to solve the conventional problems as described above, and to improve the reliability of the operation by ensuring that the deluge valve for fire-fighting equipment is correctly closed after the operation due to the fire or after the test of the fire-fighting equipment.

According to an aspect of the present invention for achieving the above object, in the opening and closing device of the fire-fighting equipment Deleuze valve which is provided with an inflow chamber into which the fire water is introduced, and a diaphragm chamber for applying hydraulic pressure to the diaphragm, the front end of the inflow chamber A connection line provided with a shut-off valve installed to open and close the inflow of fire water, a check valve connecting the diaphragm chamber from the inflow chamber, and allowing a fire water flow to the diaphragm chamber side; A first on-off valve for opening and closing the discharge of fire water through the discharge line, a branch line branched from a front end of the shutoff valve and connected to the connection line, and installed at the branch line; Comprising a second open / close valve for opening and closing the flow of fire water supplied to the diaphragm chamber The opening and closing device for fire extinguishing equipment delryujeu valve according to claim is provided.

The first and second on-off valves are operated by air, and the opening and closing operations are opposed to each other.

The first and second on-off valves may be opened when the first on-off valve is closed and the second on-off valve is closed when the air is shut off to open the deluge valve.

The first and second on-off valves are characterized by consisting of one-way valves to allow only the discharge of fire water and the supply of fire water to the diaphragm chamber, respectively.

The branch line is characterized in that one end is connected to the rear end of the check valve in the connection line.

According to another aspect of the present invention, in the opening and closing device of the fire-fighting equipment Deleuze valve is provided with an inflow chamber into which the fire water is introduced and a diaphragm chamber for applying hydraulic pressure to the diaphragm, opening and closing the inflow of fire water to the front end of the inflow chamber A shut-off valve installed to connect the diaphragm chamber from the inlet chamber, a connecting line to which a check valve is installed, a first on-off valve installed at a discharge line branched from the connecting line, and a front end of the shutoff valve It is provided with an opening and closing device of the fire fighting equipment deluge valve, characterized in that it comprises a second on-off valve that is installed to be supplied to or shut off the fire water of the diaphragm chamber.

According to the present invention, after the operation of the firefighting deleuze valve or after testing of the firefighting equipment, the pressure difference between the upper and lower ends of the diaphragm can be accurately closed to improve the reliability of the operation.

Figure 1 is a block diagram showing the opening and closing device of the deluge valve for fire fighting equipment according to the present invention.

Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following examples can be modified in various forms, and the scope of the present invention is not limited to the following examples.

Figure 1 is a block diagram showing the opening and closing device of the deluge valve for fire fighting equipment according to the present invention.

As shown in FIG. 1, the opening and closing device 100 of a deluge valve for fire fighting equipment according to the present invention includes an inflow chamber 11 through which fire water is introduced and a diaphragm chamber 12 that applies hydraulic pressure to a diaphragm (not shown). (1) is provided with an opening and closing device for the fire-fighting deluge valve (10), a shut-off valve (110) for opening and closing the flow of fire water in front of the inlet chamber (11), and the diaphragm chamber (12) from the inlet chamber (11) In addition to the connection line 120 and the check valve 121 is installed, the first on-off valve 130 is installed in the discharge line 131 branching from the connection line 120 and the shut-off valve 110 And a second on / off valve 150 which is installed to block or prevent the firefighting water of the front end from being supplied to the diaphragm chamber 12.

On the other hand, the deluge valve 10 is provided with an inlet chamber 11 and an outlet chamber 13, respectively, so that the fire water is supplied and discharged, the diaphragm for opening and closing the fire water flow from the inlet chamber 11 to the outlet chamber 13 (Not shown) is provided, and a diaphragm chamber 12 is provided to apply hydraulic pressure to the upper end of the diaphragm.

The shutoff valve 110 is installed in a fire water supply line 111 for supplying fire water to the inflow chamber 11 of the deluge valve 10, and opens and closes the fire water inflow into the inflow chamber 11.

Connection line 120 is connected to the diaphragm chamber 12 from the inlet chamber 11, the check valve 121 for allowing the fire water flow to the diaphragm chamber 12 side and blocking the flow to the reverse side is It is installed, the flow control orifice 122 is installed in front of the check valve 121. In addition, the connection line 120 may be provided with a pressure gauge (PI) for pressure measurement.

The first opening / closing valve 130 is installed in the discharge line 131 branching from the connection line 120, by opening and closing the discharge of the fire water to be supplied to the diaphragm chamber 12 through the discharge line 131 to the deluge valve (10) to open and close. Here, the manual valve 160 for discharging the fire water to the outside in front of the first opening and closing valve 130 may be installed in the discharge line 131.

For example, the second on-off valve 150 may be installed at the branch line 140, where the branch line 140 is branched from the front end of the shutoff valve 110 and connected to the connection line 120. In addition, the branch line 140 is branched from the front end of the shut-off valve 110 may be connected to one end of the rear end of the check valve 121 in the connection line 120.

The second on-off valve 150 is installed in the branch line 140 to open and close the flow of the fire water supplied to the diaphragm chamber 12 from the front end of the shut-off valve 110.

Meanwhile, the first and second on-off valves 130 and 150 operate by air supplied from an instrument air supply (IAS), and operate to open and close to each other, for example, to open the deluge valve 10. In order to shut off the air, the first open / close valve 130 is opened and the second open / close valve 150 is closed.

In addition, the first and second on-off valves 130 and 150 may be configured as one-way valves to allow only fire water discharge and fire water supply to the diaphragm chamber 12, respectively.

As described above, the operation of the opening and closing device of the fire-fighting deluge valve according to the present invention will be described.

As shown in FIG. 1, when the shutoff valve 110 is opened in a state in which the first on-off valve 130 is closed by supply of air, the firewater is connected to the flow control orifice 122 through the connection line 120. The deluge valve 10 is closed by supplying the diaphragm chamber 12 of the deluge valve 10 via the check valve 121 to pressurize the upper end of the diaphragm. In addition, the second on-off valve 150 is opened by the supply of air by the opposite operation with the first on-off valve 130, so that the fire water is supplied to the diaphragm chamber 12 through the branch line 140, and thus, the deluge valve 10. ) Is closed.

On the other hand, when the fire is detected in the state in which the shutoff valve 110 is opened, or to stop the air supply to the first and second on-off valves 130 and 150 for the test of the fire-fighting facility, the first on-off valve 130 is open When the second on / off valve 150 is closed, the supply of the fire water to the diaphragm chamber 12 is interrupted, and the pressure of the fire water that pressed the upper end of the diaphragm is lower than the pressure at the bottom of the diaphragm so that the deluge valve 10 is opened. Thus, the fire water is supplied to the injection nozzle side through the outflow chamber 13.

In addition, in order to close the deluge valve 10, the air is supplied to the first and second on / off valves 130 and 150 so that the first on / off valve 130 is closed and the second on / off valve 150 is When the shutoff valve 110 is closed, the fire water in front of the shutoff valve 110 is supplied to the diaphragm chamber 12 through the branch line 140 to pressurize the upper end of the diaphragm to release the deluge valve 10. When the shutoff valve 110 is opened again to enable the supply of the fireman, the fireman is supplied to the diaphragm chamber 12 through the connection line 120 to further pressurize the upper part of the diaphragm to release the valve. ) To remain closed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention will be.

10: Deleuze Valve 11: Inflow Chamber
12: diaphragm chamber 13: outflow chamber
110: shutoff valve 111: fire water supply line
120: connection line 121: check valve
122: flow control orifice 130: first opening and closing valve
131: discharge line 140: branch line
150: second on-off valve 160: manual valve
PI: Pressure Gauge IAS: Instrument Air Supply

Claims (6)

In the opening and closing device of the fire-fighting equipment Deleuze valve is provided with an inflow chamber into which fire water is introduced and a diaphragm chamber for applying hydraulic pressure to the diaphragm,
A shutoff valve installed to open and close an inflow of fire water at the front end of the inflow chamber;
A connection line connecting the diaphragm chamber to the diaphragm chamber and having a check valve to allow a fire water flow to the diaphragm chamber;
A first opening / closing valve installed at a discharge line branching from the connection line, the first opening / closing valve opening and closing the discharge of fire water through the discharge line;
A branch line branched from a front end of the shutoff valve and connected to the connection line; And
And a second on / off valve installed on the branch line to open and close a flow of fire water supplied to the diaphragm chamber. The method of claim 1, wherein the first and second on-off valve
An opening and closing device of a fire-fighting deluge valve for operating by air, the opening and closing operation opposite to each other. The method according to claim 2, wherein the first and second on-off valve,
When the air is cut off to open the deluge valve, the opening and closing device of the fire-fighting device Deleuze valve, characterized in that the opening of the first on-off valve, the closing of the second on-off valve. The method according to any one of claims 1 to 3, wherein the first and second on-off valve
An opening and closing device of the fire fighting equipment deluge valve, characterized in that consisting of a one-way valve to allow only the discharge of fire water and the supply of fire water to the diaphragm chamber. The method according to claim 1, wherein the branch line
Opening and closing device of the fire-fighting deluge valve, characterized in that one end is connected to the rear end of the check valve in the connection line. In the opening and closing device of the fire-fighting equipment Deleuze valve is provided with an inflow chamber into which fire water is introduced and a diaphragm chamber for applying hydraulic pressure to the diaphragm,
A shutoff valve installed to open and close an inflow of fire water at the front end of the inflow chamber;
A connection line connecting the diaphragm chamber from the inflow chamber and having a check valve installed therein;
A first on-off valve installed at a discharge line branching from the connection line; And
And a second on / off valve installed to allow the fire water in front of the shutoff valve to be supplied to or blocked from the diaphragm chamber.

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