WO2019168295A1

WO2019168295A1 - Valve having system for checking opening/closing thereof

Info

Publication number: WO2019168295A1
Application number: PCT/KR2019/002087
Authority: WO
Inventors: 최정미; 조두혁; 유주현
Original assignee: 최정미
Priority date: 2018-02-27
Filing date: 2019-02-20
Publication date: 2019-09-06
Also published as: KR101894425B1

Abstract

The present disclosure relates to a valve having a system for checking opening/closing thereof, wherein opening/closing of a butterfly valve installed in a pipe through which a fluid flows is detected and displayed on an external portable terminal and the like, so as to allow a user to easily check whether the valve is in an opened or closed state. A valve according to one embodiment of the present disclosure comprises: a valve body; a disk installed inside the valve body so as to open and close a flow channel of the valve body while being rotated over an angle of 90°; a driving means for rotating the disk; a driving shaft connected to the driving means and connected to one side of the disk by a fixing pin; an auxiliary shaft connected to the other side of the disk by an auxiliary fixing pin; a torque sensor installed at one side of the driving shaft so as to measure the torque of the driving shaft; a controller for receiving a measured value from the torque sensor; and a monitor connected to the controller so as to receive the measured value transmitted by the controller.

Description

Valve with opening / closing check system

The present disclosure relates to a valve having an opening / closing check system, and in particular, by detecting whether or not the butterfly valve installed in a fluid flowing tube is displayed on an external portable terminal, so that the user can easily check the opening / closing state of the valve. A valve having an opening / closing confirmation system

Unless otherwise indicated herein, the contents described in this identification are not prior art to the claims of this application and the description in this identification is not admitted to be prior art.

The butterfly valve is a valve in which a disk-shaped disk in the center of the body rotates an axis perpendicular to the flow path by 90 ° with a rotation axis to control the flow rate while opening and closing the flow path. The configuration includes a body of a butterfly valve, a disk for opening and closing a flow path while rotating at an angle of 90 ° inside the body, a driving means for rotating the disk, a driving shaft for connecting the driving means and the disk, and formed on the opposite side of the driving shaft. It consists of a secondary shaft. Here, the drive shaft, the auxiliary shaft and the disk are firmly coupled to each other through a fixing pin.

However, when the disk is rotated to open and close the flow path, even though the fixing pin on the shaft coupled with the disk is worn or broken, the fixing pin is broken even though the driving shaft is rotated through the driving means. It may not rotate together. As a result, even if the drive shaft is rotated by 90 ° to prevent flow, the disc is not rotated by 90 ° and there is a risk of a safety accident if the user who believes that the flow path is closed opens the valve.

In addition, after the valve is installed in the flow path can not check the connection state, there is a disadvantage that it is difficult to confirm until the valve is opened, such as the problem of damage to the fixing pins due to continuous use.

The present invention provides a valve having an opening / closing check system that can check the normal operation of the disk that is responsible for opening and closing the butterfly valve through an external monitoring system without opening the valve.

In addition, the present invention is not limited to the above-described technical problems, and it is apparent that other technical problems may be derived from the following description.

According to an embodiment of the present disclosure, a valve includes: a valve body, a disc installed inside the valve body, opening and closing a flow path of the valve body while rotating at an angle of 90 °, driving means for rotating the disc, A valve connected to the drive means, the drive shaft being connected to one side of the disk by a fixing pin, and an auxiliary shaft connected to the other side of the disk by an auxiliary fixing pin, the valve being installed on one side of the drive shaft, It characterized in that it comprises a torque sensor for measuring the torque of the drive shaft, a control unit for receiving a value measured from the torque sensor, and a monitor unit connected to the control unit for receiving the measured value.

According to a preferred feature of the present disclosure, a valve body, a disk which is provided inside the valve body, opening and closing the flow path of the valve body while rotating at a 90 ° angle, drive means for rotating the disk, and the drive means In the valve comprising a drive shaft connected to one side of the disk by a fixing pin, and an auxiliary shaft connected to the other side of the disk by an auxiliary fixing pin, the inner side of the valve body and the disk in contact with And a rotary sensor installed to measure the rotating angle, a controller configured to receive the measured value from the rotary sensor, and a monitor connected to the controller to receive the measured value.

According to an embodiment of the present disclosure, it is possible to check whether the valve is opened or closed, thereby increasing work efficiency, and monitoring the connection state between the disk and the drive shaft to check whether the defect is in advance, thereby preventing safety accidents. There is an advantage.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a valve having an opening and closing confirmation system according to an embodiment of the present disclosure.

2 is an exploded perspective view of a valve having an opening and closing confirmation system according to an embodiment of the present disclosure.

3 is a cross-sectional view of a valve having an open / close confirmation system according to an embodiment of the present disclosure.

4 is a block diagram of a rotary sensor and a disk installed on a surface of the valve body in contact with the inside of the valve body in the valve having an opening and closing system according to an embodiment of the present disclosure.

FIG. 5A is a state diagram in which a disk is stopped in a valve having an opening / closing confirmation system according to an embodiment of the present disclosure. FIG.

FIG. 5B is a view illustrating an operation state according to rotation of a disk in a valve having a system for checking whether a door is opened or closed according to an embodiment of the present disclosure.

6 is a block diagram of a valve having an opening and closing confirmation system according to an embodiment of the present disclosure.

7 is another block diagram of a valve having an opening / closing confirmation system according to an embodiment of the present disclosure.

Hereinafter, with reference to the accompanying drawings looks at the configuration, operation and effect of the valve having a check whether the opening and closing system according to a preferred embodiment. For reference, in the drawings, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect the actual size. In addition, the same reference numerals throughout the specification refer to the same components and reference numerals for the same components in the individual drawings will be omitted.

1 is a perspective view of a valve having an opening / closing confirmation system according to an embodiment of the present disclosure, FIG. 2 is an exploded perspective view, and FIG. 3 is a sectional view.

The valve 1 according to the exemplary embodiment of the present disclosure is installed inside the valve body 10 and the valve body 10, and opens and closes a flow path of the valve body 10 while rotating at an angle of 90 °. Disk 20, a drive means for rotating the disk 20, and a drive shaft connected to the drive means 30, and connected to one side of the disk 20 by a fixing pin 40 ( 30, and a valve (1) comprising an auxiliary shaft (50) connected to the other side of the disk (20) by an auxiliary fixing pin (51), which is installed on one side of the drive shaft (30), and the drive shaft Torque sensor 60 for measuring the torque of the 30, the control unit 80 for receiving the value measured from the torque sensor 60, the monitor connected to the control unit 80 receives the measured value It characterized in that it comprises a portion (90).

Generally, the valve 1 for controlling opening and closing of a flow path is comprised between piping and piping. The valve 1 has pipes connected to both sides of the valve body 10 so that fluid usually flows, and the disk 20 formed inside the valve body 10 rotates to close the flow path. Will stop the flow of. One side of the disk 20 determines whether to open or close the valve while rotating by 90 ° about the drive shaft 30 inserted into the center. The drive shaft 30 and the disk 20 are coupled to each other through the fixing pin 31 so that the disk 20 rotates together as the drive shaft 30 rotates. One end of the drive shaft 30 is connected to the driving means 40 for rotating the disk 20 to rotate the disk 20 through the driving means 40 to determine the opening and closing of the flow path. In addition, the auxiliary shaft 50 is coupled to each other by the auxiliary pin 51 on the other side of the disk 20.

The drive means 40 has an automatic method of rotating the drive shaft 30 through the drive motor 41 and a manual method of rotating the drive shaft 30 through the handle 45. The shaft rotates by operating the drive motor 41, preferably a stepping motor that rotates only a predetermined angle every time a pulse signal is applied, and the speed is reduced by the speed reducer 43. Here, as shown in Figure 3, the reducer 43 is preferably characterized in that the planetary gear reducer. The planetary gear reducer rotates and rotates the peripheral gears around one sun gear positioned at the center of the planetary gear reducer, thereby reducing the rotation of the driving motor 41 and transmitting it to the driving shaft 30. In addition, the driving means 40 may be used as a combination of the automatic method by the operation of the motor and the manual method of operating the handle while rotating, so that when the problem occurs in the drive motor 41, the motor does not rotate to neutral It is set to, and can rotate the drive shaft 30 manually through the handle 45.

The valve having the opening and closing confirmation system according to an embodiment of the present disclosure, as shown in Figures 2 and 3, the drive shaft 30 is characterized in that it further comprises a torque sensor 60 installed on one side thereof. It is done. The torque sensor 60 is a sensor for detecting the torque required to rotate about the drive shaft 30, the drive shaft 30 is coupled to each other through the disk 20 and the fixing pin 31, the drive The torque required to rotate the drive shaft 30 through the means 40 is measured by the torque sensor 60. However, as mentioned above, when the fixing pin 31 is worn or broken, the disk 20 rotates together with the drive shaft 30 even though the drive shaft 30 is rotated through the drive means 40. It may not be. Accordingly, the value measured by the torque sensor 60 will be smaller than the value measured when the drive shaft 30 rotates with the disk 20, and the data on the measured value is transferred to the controller 80. send.

The controller 80 receives the transmitted data and compares the preset torque value with the measured torque value. Accordingly, if the measured value is not equal to or greater than the preset torque value, it can be expected that the fixing pin 31 connecting the drive shaft 30 and the disk 20 is not worn or broken. The control unit 80 confirms that there is no problem in opening or closing, and transmits a signal through the monitor unit 90 such as a mobile device. Therefore, even if the valve 1 is not opened, it can be confirmed that the valve is normally opened and closed. If the measured value is lower than the preset torque value, the controller 80 transmits an abnormal signal to the monitor unit 90 so that the user can check the fact through the mobile device.

4 is a view illustrating a configuration diagram of a rotary sensor and a disk installed on a surface in which a valve is in contact with an inner side of a valve body in a valve having a system for checking whether an opening or closing is performed according to an exemplary embodiment of the present disclosure, and FIG. In a valve having an opening / closing confirmation system according to an embodiment of the present disclosure, a state diagram in which the disc is stopped, and FIG. 5B illustrates an operation state diagram in accordance with rotation of the disc.

6 and 7 also show block diagrams of valves with open / close confirmation systems in accordance with one embodiment of the present disclosure.

The valve 1 according to another feature of the present disclosure is provided in the valve body 10 and the valve body 10, and opens and closes a flow path of the valve body 10 while rotating at an angle of 90 °. Disk 20, a drive means for rotating the disk 20, and a drive shaft connected to the drive means 30, and connected to one side of the disk 20 by a fixing pin 40 ( 30, and an auxiliary shaft 50 connected to the other side of the disk 20 by an auxiliary fixing pin 51, wherein the valve body 10 is provided with an inner side of the valve body 10 and the disk 20. ) Is installed on the contact surface, the rotary sensor 70 for measuring the rotating angle, the control unit 80 for receiving a value measured from the rotary sensor 70, the control unit 80 is connected to the measurement It characterized in that it comprises a monitor unit 90 for receiving the received value.

The rotary sensor 70 is formed on a surface where the inner surface of the valve body 10 and the disk 20 abut, so that the rotary sensor 70 can detect that the disk 20 is rotated. When the disk 20 is rotated through the driving means 40, the auxiliary shaft 50 coupled through the disk 20 and the auxiliary pin 51 and the driving shaft 30 coupled through the fixing pin 31 are coupled. It rotates with the disk 20, the rotary sensor 70 is installed on the surface in contact with the disk 20 is to measure the angle according to the rotation of the disk (20).

The rotary sensor 70 is preferably composed of a rotary encoder. The rotary encoder is a digital rotation displacement detector for outputting the rotation angle as an electric pulse. As the disc 20 rotates, the rotary encoder outputs the rotation angle as an electric pulse so that the rotation displacement can be measured. As shown in FIG. 4, a rotary sensor 70 is installed on the inner side of the valve body 10, and the disk 20 is positioned to contact the valve body 10, and the disk 20 rotates to measure an angle thereof. It can be.

In general, in order to open or close the valve 1, the disk 20 is rotated by an angle of 90 °, and when the disk 20 is rotated through the driving means 40, a value measured according to the method is controlled. The control unit 80 compares the measured value with a preset value (here 90 °) and connects the auxiliary shaft 50 and the disk 20 to each other when they are the same or similar to each other. It can be expected that the auxiliary pin 31 or the fixing pin 31 connecting the drive shaft 30 and the disk 20 is not worn or broken. The control unit 80 confirms that there is no problem in opening or closing, and transmits a signal through the monitor unit 90 such as a mobile device. Therefore, even if the valve 1 is not opened, it can be confirmed that the valve is normally opened and closed. If the measured value is lower than the preset value, the controller 80 transmits an abnormal signal to the monitor unit 90 so that the user can check the fact through the mobile device.

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, the embodiments described in the specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention and represent all of the technical idea of the present invention. It is to be understood that there may be various equivalents and variations in place of them at the time of the present application. Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the detailed description, and the meaning and scope of the claims and their All changes or modifications derived from an equivalent concept should be construed as being included in the scope of the present invention.

※ Explanation of code

1: valve

10: valve body

20: disk

30: drive shaft

31: fixed pin

40: driving means

41: drive motor

43: reducer

45: handle

50: secondary axis

51: auxiliary pin

60: torque sensor

70: rotary sensor

80: control unit

90: monitor

Claims

Valve body;

A disk installed inside the valve body and opening / closing a flow path of the valve body while rotating at an angle of 90 °;

Drive means for rotating the disk;

A driving shaft connected to the driving means and connected to one side of the disk by a fixing pin;

In the valve comprising: an auxiliary shaft connected to the other side of the disk by an auxiliary fixing pin,

A torque sensor installed at one side of the driving shaft and measuring torque of the driving shaft;

A control unit which receives a value measured from the torque sensor;

And a monitor unit connected to the control unit to receive the measured value.
The method of claim 1,

A rotary sensor installed at an inner side of the valve body and the disk in contact with the disk body and measuring a rotating angle;

A control unit for receiving a value measured from the rotary sensor;

And a monitor unit connected to the control unit to receive the measured value.
Valve body;

A disk installed inside the valve body and opening / closing a flow path of the valve body while rotating at an angle of 90 °;

Drive means for rotating the disk;

A driving shaft connected to the driving means and connected to one side of the disk by a fixing pin;

In the valve comprising: an auxiliary shaft connected to the other side of the disk by an auxiliary fixing pin,

A rotary sensor installed at an inner side of the valve body and the disk in contact with the disk body and measuring a rotating angle;

A control unit for receiving a value measured from the rotary sensor;

And a monitor unit connected to the control unit to receive the measured value.
The method according to claim 2 or 3,

The rotary sensor is a valve, characterized in that consisting of a rotary encoder.