KR200363612Y1 - Alarm valve of water flow detector for fire extinguishing utility - Google Patents

Abstract

The present invention relates to an alarm valve of the water flow detection device for fire extinguishing equipment, and has a main body having a seat formed with a fluid passage penetrating up and down, and rotatably mounted to the main body via a hinge pin, the upper fluid passage of the seat In the alarm valve of the oil and water detection device for fire extinguishing equipment having a disk holder with a disk to open and close at, and detects the flow of water to start the alarm and pressurized water supply device, the upper surface of the seat (14) is hinged To form the inclined downward toward the pin 17, the foreign matter collection space (S) is formed in the main body 11 of the site where the hinge pin 17 is installed so that foreign matter such as scale is collected, the foreign matter collection space ( The foreign substance discharge hole 18 is formed in the main body 11 so as to discharge foreign substances such as scales collected in S) to the outside. Was discharged to the outside has an effect that a malfunction can be prevented in advance of the passage opening and closing of the fluid.

Description

Alarm valve of water flow detector for fire extinguishing equipment

The present invention relates to an alarm valve of a water flow detection device for a fire extinguishing system, and more particularly, to discharge the foreign matter such as a scale to the outside, thereby preventing the malfunction of opening and closing the passage of a fluid in advance. It relates to an alarm valve.

In general, the oil and water detection device for fire extinguishing equipment is a device that is installed in the pipe of the fire extinguishing equipment to automatically detect the water flow phenomenon in the valve body to generate a signal and alarm.

Such a water flow detection device usually has an alarm valve, and the alarm valve is operated by the pressure difference between the fluid inlet and the fluid outlet. The alarm valve detects water in the pipe and operates the alarm and pressurized water supply device according to the operation of the alarm valve. Activate

1 is a schematic block diagram showing an alarm valve constituting the oil and water detection device for fire extinguishing equipment according to the prior art, a main body (1) having a fluid inlet (2) and a fluid outlet (3), and the main body (1) And a disk (5) rotatably mounted in the interior thereof to open and close the fluid passage (4a) formed to connect the fluid inlet (2) and the fluid outlet (3).

More specifically, the fluid inlet part 2 and the fluid outlet part 3 are formed in the main body 1 so that the flow of the flowing water flows from the lower part to the upper part, and this fluid inlet part 2 and the fluid outlet part 3 are formed. The sheet 4 providing the fluid passage 4a is horizontally formed between the two surfaces.

Then, the fluid passage 4a of the seat 4 is opened and closed by a disk 5 which is installed to be placed on the upper part of the seat 4, and the disk 5 is rotatably mounted to the main body 1. To the fixed disk holder 6.

At this time, the disk 5 is placed on the seat 4 by its own weight when no fluid is introduced through the fluid inlet 2.

Accordingly, when the fluid is introduced through the fluid inlet 2, the disk 5 and the disk holder 6 rotate clockwise by the pressure of the fluid to open the fluid passage 4a of the seat 4, The flow of the flowing water through which the fluid flows is measured by a pressure gauge not shown mounted on the fluid inlet part 2 and the fluid discharge part 3, and the alarm and the start of the pressurized water supply device are performed by the flow phenomenon. will be.

The alarm valve of the above-described configuration may occur when the rotation of the disk 5 is not properly performed when scales, etc., formed in the pipe are accumulated on the fluid discharge part 3, which is the scale 5 and the like. It is understood that the cause is caused by being stuck to the edge portion of the disc holder 6 supporting the disc 5 and hindering the rotation operation of the disc 5 and the disc holder 6.

However, since the conventional alarm valve does not have a configuration for discharging the scale to the outside, it is necessary to periodically check the water flow detection device and to remove the scale. It was a fatal problem to take the damage.

The present invention is to solve the above-mentioned conventional problems, the disk which is operated to open and close the fluid passage of the seat connecting the fluid inlet and the fluid outlet by discharging the scale to the outside so that it can be rotated stably. It is an object of the present invention to provide an alarm valve of a water flow detection device for fire extinguishing equipment.

1 is a schematic configuration diagram showing an alarm valve constituting the water flow detection device for fire extinguishing equipment according to the prior art;

Figure 2 is a schematic block diagram showing an alarm valve constituting the water flow detection device for fire extinguishing equipment according to the present invention;

3 is a cross-sectional view taken along the line A-A of FIG.

Figure 4 is an exemplary pipe showing the overall state of the alarm valve of the present invention is applied to the water flow detection device for fire extinguishing equipment.

※ Explanation of symbols about main part of drawing ※

10: alarm valve 11: body

12: fluid inlet 13: fluid outlet

14 sheet 14a fluid passage

15: disc 16: disc holder

17: hinge pin 18: foreign matter discharge hole

S: Foreign body collecting space 28, 29: Pressure gauge

30: plug

As a technical configuration for achieving the above object, the present invention, the main body having a sheet formed with a fluid passage that penetrates up and down, and rotatably mounted to the main body via a hinge pin, and the top of the fluid passage of the sheet In the alarm valve of the oil and water detection device for fire extinguishing equipment to detect the water flow to perform the alarm and start the pressurized water supply device to open and close at, the upper surface of the seat toward the hinge pin Formed inclined downward, foreign matter collection space is formed in the main body of the portion where the hinge pin is installed to collect foreign matters such as scale, foreign matter on the body to discharge the foreign matters such as scale collected in the foreign matter collection space to the outside By providing an alarm valve of the water flow detection device for fire extinguishing equipment, characterized in that the discharge hole is formed .

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic configuration diagram showing an alarm valve constituting the oil and water detection device for fire extinguishing equipment according to the present invention, the alarm valve 10 is a path of the fluid so that the fluid made of water is generally introduced from the lower portion and discharged through the upper portion It has a main body 11 to provide.

The main body 11 is formed with a fluid inlet 12 that provides a path of the fluid from the bottom to the center portion, and a fluid outlet 13 that provides a path of the fluid from the center to the top.

In addition, a sheet 14 on which the disk 15 is placed on the upper portion of the main body 11 is formed, and the sheet 14 connects the fluid inlet 12 and the fluid outlet 13. A fluid passage 14a is formed.

The seat 14 is fixedly installed on the disc holder 16 rotatably mounted to the main body 11, the disc holder 16 through the hinge pin 17 as shown in more detail in FIG. It is attached to the main body 11 so that rotation is possible.

In the present invention, the position at which the upper surface of the sheet 14 is formed is set higher than the position at which the hinge pin 17 is installed, and the upper surface of the sheet 14 is inclined to have an inclination downward toward the hinge pin 17. This inclination angle is preferably about 15 °.

In addition, the main body 11 is formed with a foreign matter collection space (S) in which foreign matters such as scales accumulated on the fluid discharge portion 13 side are collected, and the foreign matter collection space (S) is collected at the upper portion of the disc holder 16. A foreign substance such as a scale is formed at a portion where the disk holder 16 is gathered along the inclination of the disk holder 16, for example, at a portion where the lower end of the disk holder 16 is located.

In addition, the foreign matter discharge hole 18 is formed in the body 11 of the portion corresponding to the lower portion of the foreign matter collection space (S).

Reference numeral 19 denotes a drain valve mounting hole to which the drain valve is mounted, and reference numeral 20 denotes a plug for opening and closing the foreign matter discharge hole 18.

The operation of the present invention with the above configuration will be described.

Figure 4 is a piping example showing the state in which the alarm valve of the present invention is applied to the water flow detection device for fire extinguishing equipment, the lower side of the alarm valve 10, that is, the side of the fluid inlet 12 side OSY (Out side screw rising stem and yoke) valve 21 is mounted, the fluid inlet pipe 22 is connected to the OSY valve (21). In addition, the fluid discharge pipe 23 is connected to the upper end of the alarm valve 10, that is, the fluid discharge portion (13).

In addition, a drain valve 24 is mounted to the drain valve mounting opening of the alarm valve 10, and the drain valve 24 is provided with a test valve 25 and a drain pipe 26. The pressure switch 27 is installed in a pipe (not shown) connecting the 24 and the fluid discharge part 13 to each other.

In addition, the alarm valve 10 is provided with pressure gauges 28 and 29 at the fluid inlet 12 and the fluid outlet 13, respectively.

The oil / water detection device having the above-described configuration is always filled with pressurized water in the piping system, and the pressurized water is waterproof when the heat-sensitive portion of the sprinkler head is opened due to a fire, and the pressurized water is connected to the alarm valve 10 through the fluid inlet pipe 22. Flows into.

This pressurized water exerts a pressure on the disc 15 of the alarm valve 10, and by this pressure the disc 15 and the disc holder 16 supporting it rotate about the hinge pin 17 so that the seat ( Open the fluid passage 14a of 14).

Therefore, the pressurized water is discharged to the fluid discharge pipe 23 through the fluid discharge portion 13 of the alarm valve 10 after passing through the fluid passage (14a), wherein the fluid inlet 12 and the fluid discharge portion (13) Water flow is detected by the pressure gauges 28 and 29 respectively installed at), and the alarm and the start of the pressurized water supply system are performed by the flow phenomenon.

At this time, the alarm valve 10 of the present invention has a characteristic that the opening operation of the disk 15 and the disk holder 16 is sensitive, which will be described in more detail below.

The force exerted on the disk 15 and the disk holder 16 maintains the disk 15 and the disk holder 16 on the top of the seat 14 by its own weight, as well as the rotated disk 15 and The disc 15 and the disc holder 16 are driven by the force that returns the disc holder 16 to the top of the seat 14 (hereinafter referred to as a 'closing force') and the pressure applied to the bottom surface of the disc 15. Is largely divided into a force that moves away from the upper portion of the sheet 14 (hereinafter referred to as 'opening force').

In addition, the rotational force for rotating the disk 15 and the disk holder 16 is a hinge pin 17 which is a portion where the closing force and the opening force are applied, and a rotation center point of the disk 15 and the disk holder 16, respectively. Perpendicular to the distance between the closing force and the opening force of the closing force and the opening force, and the line connecting the hinge pin 17, which is the center of rotation of the disc 15 and the disc holder 16, respectively. It is related to the size of the component. For convenience, the rotational force by the closing force is called 'closing rotational power', and the rotational force by the opening force is called 'opening rotational power'.

Sensitivity to the opening operation of the disc 15 and the disc holder 16 is such that when the disc 15 and the disc holder 16 are positioned to close the fluid passage 14a of the seat 14, the disc ( 15) and how large the closing rotational force is applied to the disc holder 16, and the smaller the closing rotational force is, the faster the fluid passage 14a of the seat 14 is opened to open the disk 15 and the disk. Sensitivity to the opening operation of the holder 16 is increased.

In the present invention, the position at which the upper surface of the sheet 14 is formed is set higher than the position at which the hinge pin 17 is installed, and the upper surface of the sheet 14 is inclined downward toward the hinge pin 17. Since the disk 15 and the disk holder 16 are positioned on the upper surface of the sheet 14 so as to close the fluid passage 14a of the sheet 14, since the disk 15 and the disk holder 16 are formed to be inclined to have a closing force, The magnitude of the vertical component of the closing force with respect to the losing portion and the line connecting the hinge pin 17, which is the center of rotation of the disk 15 and the disk holder 16, is determined by the inclination angle formed by the upper surface of the sheet 14. It is a cosine value.

Accordingly, the alarm valve of the present invention in which the upper surface of the seat 14 is inclined at an angle with respect to the horizontal plane has a smaller closing rotational force of the seat 14 as compared with a conventional alarm valve in which the upper surface of the seat is parallel to the horizontal plane. Sensitivity to the opening operation of the disc 15 and the disc holder 16 is increased compared to the prior art.

In addition, in the alarm valve of the present invention, when a foreign matter such as a scale formed in the pipe is accumulated on the fluid discharge part 13 side, the upper portion of the disk holder 16 on which most of the foreign matter is accumulated is inclined downward toward the foreign matter collection space S. Since the foreign matter is gathered in the foreign matter collection space (S) along the inclination of the disk holder 16 is discharged to the foreign matter discharge hole (18).

Therefore, the problem that the foreign matter accumulates on the fluid discharge part 13 side and hinders the rotation operation of the disk 15 is solved, which makes the alarm valve of the present invention operate stably at all times.

According to the alarm valve of the oil and water detection device for fire extinguishing equipment according to the present invention as described above, the foreign matter such as scale is discharged to the outside of the alarm valve to solve the problem of preventing the rotation of the disk due to accumulation of the foreign matter Has an effect.

In addition, the sheet is inclined to have a predetermined inclination so that the sensitivity to the opening operation of the disc and the disc holder is improved.

Claims (1)

A main body having a sheet having a fluid passage penetrating up and down, a disk holder rotatably mounted to the main body via a hinge pin and provided with a disk to open and close the fluid passage of the sheet from the top, and detect water flow In the alarm valve of the oil and water detection device for fire extinguishing equipment to perform the alarm and start of the pressurized water supply device, The upper surface of the sheet 14 is inclined to downward toward the hinge pin 17, the foreign matter collection space (S) in the main body 11 of the site where the hinge pin 17 is installed so that foreign matter such as scale is collected. ) Is formed, and the foreign matter discharge hole detection device for a fire extinguishing system, characterized in that the foreign substance discharge hole 18 is formed in the main body 11 to discharge the foreign substances such as scales collected in the foreign substance collection space (S) to the outside. valve.