KR20110075750A

KR20110075750A - Alarm valve

Info

Publication number: KR20110075750A
Application number: KR1020090132292A
Authority: KR
Inventors: 장선우
Original assignee: 주식회사 우당기술산업
Priority date: 2009-12-29
Filing date: 2009-12-29
Publication date: 2011-07-06

Abstract

The present invention relates to an alarm valve which is an oil / water detection device constituting a sprinkler system, and more particularly, to an alarm valve that is more compactly configured by integrating a degree valve on a primary side and a switch pin having a rubber packing on a side thereof. will be.

Description

Alarm valve

Wet water detection device (alarm valve) constituting the sprinkler facility has the advantages of simple structure, low construction cost, easy maintenance and relatively short delay time compared to other facilities. On the other hand, the pressurized water is added to the end of the head, and thus the head may be damaged by supplying the pressurized water of high pressure supplied to the building which gradually rises, and the cost of the product and the construction cost are important selection criteria.

Therefore, there is a need for a reliable flow water detector with a more compact size while ensuring the same performance in the alarm valve. In addition, it is required to reduce the installation space and the construction cost when installing and constructing a pressure reducing function that can prevent the damage of the head by appropriately reducing the high pressure pressurized water.

An example of a conventional alarm valve is shown in FIG. The upper figure shows the general state of the alarm valve, and the lower figure shows the state in case of fire.

As shown in the figure, the alarm valve has a main body 10 having a shape in which upper and lower flanges 11 and 12 for pipe coupling are formed and a space through which a firefighter passes. Inside the alarm valve, a disk 20 for sealing the lower primary side and the upper secondary side is provided, and a ball valve 21 is provided in the center of the disk 20. When a fire occurs, the disk 20 is opened by the pressure difference as shown in the figure below, and the fire water flows upward.

The bonnet 40 is installed on the side of the alarm valve for repair and cleaning of the inside of the main body 10, and on the opposite side, various assemblies such as an alarm switch 30 are installed, and the disk 20 as shown below in FIG. When the fire water flows to open a part of the flow will operate the alarm switch 30. The alarm switch 30 has a principle that usually works using the pressure of water.

Such a prior art alarm valve has a complicated structure because the switch operates by pressurized water.

The present invention has been made in order to solve the problems according to the prior art, by assembling the order valve integrally to the lower part of the alarm valve, by installing a switch pin on the side of the rubber packing can perform an accurate alarm operation even in a simple structure The purpose is to provide an alarm valve.

In the alarm valve according to the present invention, one side is connected to the secondary side communicating with the sprinkler and the other side is connected to the primary side, but in the integrated alarm valve having a decompression and order function blocking the passage with a disk therein, A main body having a flow passage formed therein, a butterfly disk serving as a degree valve to open and close the inflow of fire water from a lower end of the main body, and a hinge disk connected to an upper portion of the butterfly disk to open or close the main body 1, An alarm disc that opens or closes the secondary side, a rubber packing installed on the side of the main body to directly contact the firefighter and the outside air, and one end of the alarm disc passes through the rubber packing, and the other end is an alarm outside the rubber packing. Comprising switch pins mounted through rubber packing to press switches It characterized.

Since the alarm valve according to the present invention uses a rubber packing and a switch pin of a simple structure, the structure is very simple and the order valve is integrally formed to provide more compact equipment.

Alarm valve according to the present invention is shown in Figure 2 and 3 is a main body 110 having a hollow space through which the fire water flows. The bonnet 120 is installed on the side of the main body 110 to repair or clean the inside thereof. The front handle lever 240 is used to lock or open the butterfly disk 280 as the order valve. Reference numeral 230 denotes a drain valve assembly for draining fire water in the body 110.

4 to 7, a butterfly disk 280 is installed at a lower portion of the main body 110 by disk pins 260 and 300 at a predetermined height, and may be sealed according to the operation of the butterfly disk 280. The butterfly seat ring 250 is installed on the lower inner surface of the main body. The handle pin 240 is connected to the disk pin 300 so that the butterfly disk 280 can be turned by turning the handle lever 240 from the outside. Therefore, when the butterfly disk 280 is rotated and horizontally closed by the seat ring 250 is made. In the prior art, this is an integral part of the order valve which is normally installed below the main body 110.

The alarm disk 190 is rotatably installed around the hinge pin 170 on the upper portion of the butterfly disk 280. The disc packing 200 is assembled to the alarm disc 190 by bolts 140. In addition, one end of the alarm disk 190 is provided so that the switch pin 180 is in contact, the switch pin 180 is pressed through the rubber packing 181 to press the alarm switch 400. The rubber packing 181 is installed between the firefighter and the outside air and is designed and assembled to withstand the internal pressure. Originally, since the switch pin 180 is installed at right angles to the rubber packing 181, that is, horizontally, as shown in FIG. 4, the switch pin 180 returns to the original state by the rubber elastic force.

Therefore, when the alarm disk 190 is opened, the switch pin 180 is horizontally returned, and the alarm switch 400 held at the end of the switch pin 180 is operated externally. Reference numeral 160 denotes a cover packing.

6 and 7, the operation is more clearly revealed. 6 illustrates a state in which the switch 400 is pressed by the pin 180 while the disk 190 is not open, and FIG. 7 illustrates a state in which the disk 190 is opened and the switch 400 is pressed. The pin 180 is released. Therefore, an alarm sounds and the operation is made.

1 is an operation of the alarm valve according to the prior art,

2 is a front view of the alarm valve according to the present invention;

3 is a side view of the alarm valve according to the present invention;

4 is a cross-sectional view taken along line IV-IV shown in FIG. 2;

FIG. 5 is a cross-sectional view taken along line V-V shown in FIG. 3.

6 and 7 are views showing the operation of the alarm valve according to the present invention.

Claims

In the one side connected to the secondary side which is connected to the sprinkler and the other side is connected to the primary side, in the integrated alarm valve having a decompression and order function that blocks the passage with a disk inside,

A main body having a passage through which the fire water flows, a butterfly disk serving as a water valve to open and close the inflow of the fire water at a predetermined height from a lower end of the main body, and a hinged upper portion of the butterfly disk open or closed. Alarm disks to open or close the primary and secondary sides of the main body, rubber packing installed on the side of the main body to directly contact the firefighter and the outside air, and one end of the rubber disk through the rubber packing and the other end of the rubber An alarm valve comprising a switch pin installed through the rubber packing by pressing the alarm switch outside the packing.

The method of claim 1,

The alarm switch is an alarm valve, characterized in that when the alarm disk is opened, the alarm is generated as the alarm switch that was pressed by the switch pin is released.