KR20170016048A

KR20170016048A - Volume and condition of fluid measuring type swing check valve

Info

Publication number: KR20170016048A
Application number: KR1020150109315A
Authority: KR
Inventors: 김재봉; 김재열; 정경원; 엄태진
Original assignee: 원광밸브주식회사
Priority date: 2015-08-03
Filing date: 2015-08-03
Publication date: 2017-02-13

Abstract

The present invention relates to a swing check valve comprising a disk installed in a pipe and a hinge shaft coupled to a disk for rotating the disk in the direction of the fluid so as to open and close the pipe by a flow rate, And an hour hand is formed at the exposed end; And an angle scale is formed in the hinge bushing on the outside of the pipe so that the disk opening / closing angle can be recognized from the outside.
According to the present invention, there is an advantage that a pipe flow measuring swing check valve is provided which recognizes the disk opening / closing angle inside the swing check valve from the outside or recognizes it as an electrical signal and uses it as a disk flow rate control factor.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing check valve,

The present invention relates to a swing check valve comprising a disk installed in a pipe and a hinge shaft coupled to a disk for rotating the disk in the direction of the fluid so as to open and close the pipe by a flow rate, And an hour hand is formed at the exposed end; And an angle scale is formed in the hinge bushing on the outside of the pipe so that the disk opening / closing angle can be recognized from the outside.

Generally, a swing check valve is installed in a pipe through which a fluid passes to prevent the backward flow of the fluid flowing in the pipe, thereby controlling the flow of the fluid. When the fluid normally flows into the pipe, the swing check valve is opened by the pressure of the fluid Is a valve that automatically closes when the fluid reverses due to a malfunction of the pump or other reasons and blocks back flow of the fluid.

The conventional swing check valve includes a valve body 1 having an inlet and an outlet and a disk 1 which rotates about a hinge shaft 21 inserted through the inside of the valve body 1 and opens and closes the inlet 10 And a torsion coil spring inserted into the outer peripheral surface of the hinge shaft to press the valve opening / closing disc.

In the conventional swing type check valve constructed as described above, when the fluid normally flows into the duct, the valve opening / closing disk is automatically opened by the pressure of the fluid, and if the fluid flows backward due to malfunction of the pump or other reasons The valve opening / closing disk swings in the reverse direction to quickly close the inlet port of the valve body, thereby preventing backflow of the fluid and preventing the water shock phenomenon.

The swing check valve is very useful because it has the effect of preventing back flow compared to the simplicity of its structure. Since the opening and closing of the internal disk is not precisely controlled according to the flow rate, the problem of controlling the internal flow rate is continuously pointed out.

[0004] In order to improve the accuracy of the flow rate according to the metering, the swing check valve has a lot of room for improvement, and the problem is that the opening / closing angle of the inner disk is not accurately detected It is interpreted as the failure.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pipe flow measuring type swing check valve which recognizes the opening / closing angle of the swing check valve inside the swing check valve from the outside or uses it as an electric signal and uses it as a disk flow rate control factor.

In order to accomplish the above object, the present invention provides a swing check valve comprising a disk installed in a pipe and a hinge shaft coupled to a disk for rotating the disk by a fluid direction, Wherein the hinge shaft is exposed to the outside of the pipe and the hour hand is formed at the exposed end; And a hinge bushing on the outside of the pipe is formed with an angle scale so that the disk opening / closing angle can be recognized from the outside.

Wherein the hinge shaft and the hinge bushing of the disk include an angle measuring sensor to sense an opening and closing angle of the disk and to output electric power to calculate the amount of fluid flowing to the pipe. It is preferable to use a valve.

According to the present invention, there is provided a pipe flow measuring swing check valve for recognizing the opening / closing angle of the inside of the swing check valve from outside or recognizing it as an electric signal and utilizing it as a disk flow rate control factor.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side cross-sectional view of a swing check valve according to the present invention in a closed state
Fig. 2 is a side cross-sectional view of the swing check valve of the present invention in an opened state
3 is a cross-sectional structural view of another embodiment of the swing check valve

Hereinafter, the present invention will be described with reference to the drawings. In the following description of the present invention, a detailed description of related arts or configurations will be omitted when it is determined that the gist of the present invention may be unnecessarily obscured will be.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to be exemplary, self-explanatory, allowing for equivalent explanations of the present invention.

FIG. 2 is a sectional side view of the swing check valve according to the present invention, and FIG. 3 is a side view of a swing check valve according to another embodiment of the present invention. FIG. Fig.

As shown in the drawing, the present invention comprises a disc 20, a valve body 1, a hinge shaft 21, an hour hand 220, a hinge bushing 210, and an angle measurement sensor 200.

The swing check valve includes a valve body 1 having an inlet 10 and an outlet 11 and a hinge shaft 21 penetrating the inside of the valve body 1, And a disc 20 for opening and closing the disc 20.

The hinge shaft 21 is connected to the upper end of the disk, and the disk 20 is installed so as to be rotated in a direction for opening and closing the pipe.

The hinge bushing 210 of the present invention refers to a hinge shaft housing in which the hinge shaft 21 is inserted into the valve body 1.

The hinge shaft 21 of the present invention is exposed to the outside of the pipe, and the exposed end is formed with an hour hand.

The hour hand 220 is a display for recognizing rotation of the hinge shaft 21, and can be displayed in various ways such as a straight line or a triangle.

In the hinge bushing 210 of the present invention, an angle scale 22 is formed to recognize the rotation angle of the hour hand 220.

According to the present invention configured as described above, when the disk 20 is opened and closed by the flow rate, the opening and closing angle is displayed from the outside by the hour hand 220 and the angle scale 22. Therefore, To be able to guess.

In the meantime, the angle measuring sensor is installed on the hinge shaft 21 and the hinge bushing 210 of the disc 20.

The angle measurement sensor 200 can be installed by selecting various types of sensors such as a Hall sensor or a rotation angle sensor.

According to the present invention configured as described above, the disk opening / closing angle is sensed and the electric output is outputted to acquire information that can calculate the amount of fluid flowing to the pipe.

Therefore, when the above information is calculated and analyzed by a computer, the flow rate information flowing in the piping can be managed by a computer. Therefore, there is an advantage that a pipe flow measurement type swing check valve capable of managing piping flow rate by simply installing a valve is provided.

It will be apparent to those skilled in the art that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

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 as defined by the appended claims. It is to be understood that the technical spirit of the present invention is to the extent possible.

1: valve body 20: disk
21: Hinge shaft 22: Angle scale
200: angle measuring sensor 210: hinge bushing
220: hour hand

Claims

A swing check valve comprising a disk (20) installed in a pipe and a hinge shaft coupled to a disk rotating the disk (20) by a fluid direction,
The hinge axis coupled to the disc
An hour hand is exposed at the exposed end exposed to the outside of the pipe;
The hinge bushing on the outside of the pipe has an angle scale
And a disk opening / closing angle from the outside can be recognized.

2. The disk drive of claim 1, wherein the hinge axis of the disk and the hinge bushing
Angle measurement sensor
Consists of
And the amount of fluid flowing to the pipe can be calculated by detecting the disk opening / closing angle and electrically outputting the swing check valve.