JP2003139268A - Valve with information storage function and valve operation machine thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a valve with an information storage function storing and holding the information required for closing operation of the valve, and also to provide a valve operation machine thereof. SOLUTION: An RFID tag 7 which reads information in a non-contact manner and stores opening and closing operation direction information and shutoff torque information in advance is mounted in this valve with the information storage function.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve with an information storage function and a valve operating device therefor. It is related to technology.

[0002]

2. Description of the Related Art Conventionally, there are gate valves, butterfly valves and the like as valves buried underground in a water pipe network, and most of them are manually operated.

These valves are premised to be used in a fully closed or fully opened state, and are generally not provided with an opening scale, but the internal screw type sluice valve is in a fully closed or fully opened state. In addition, there are more and more cases in which the one with a position gauge is used because it cannot be judged from the appearance.

By the way, the valves arranged in the water distribution network play an important role in the maintenance of the network or in the event of an emergency disaster, and each valve has its own information such as a valve management number, It has product name, model, nominal diameter, opening / closing direction, shut-off speed, shut-off torque, etc. These pieces of information are written on acrylic, aluminum material, or a laminate-coated tag, and it is attached where it can be seen from the ground.

[0005]

However, according to the method of writing information on the bill, when visually confirming from the operation port on the ground, when dirt is attached due to dirt, or when looking through from a small operation port. Therefore, it is often dark and hard to see, and if the opening and closing direction is mistaken, the operator actually operates in the closing direction while opening the plug. Further, the valve requires a required shutoff torque in order to generate a predetermined seal surface pressure in the fully closed state, but the shutoff torque differs depending on the bore diameter, and the operator himself / herself determines the force depending on the shutoff torque which varies depending on the bore diameter. It is necessary to adjust the insertion condition, and excessive torque is apt to damage the valve when targeting a valve with a small diameter, and insufficient tightening due to insufficient torque when targeting a valve with a large diameter. However, there was a problem that leaks were likely to occur.

The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to provide a valve with an information storage function capable of storing and holding information necessary for the valve closing operation, and a valve operating device thereof.

[0007]

In order to solve the above-mentioned problems, the valve with an information storage function of the present invention according to claim 1 can read out information in a non-contact manner, and opens / closes operation direction information and deadline torque in advance. An RFID tag storing information is attached to a valve.

A valve operating machine according to a second aspect of the present invention is a valve operating machine for opening and closing a valve having an information storage function, wherein
Information reading means for reading the opening / closing operation direction information and shutoff torque information stored in the FID tag, a drive motor having a torque sensor for rotationally driving the shaft part fitted to the operation cap of the valve rod around the axis, and information reading means. And a control device for controlling the drive motor based on the capping operation direction information and the shutoff torque information read out in Step 1.

With the above construction, when opening and closing the valve, the valve operating device is inserted from the ground toward the valve, and the shaft portion is fitted to the operating cap of the valve rod. In this state,
The information reading means reads the opening / closing operation direction information and the deadline torque information recorded in the RFID tag of the valve. The control device controls the drive motor based on the closing operation direction information and the closing torque information read by the information reading means, and fully closes the valve with the specified closing torque.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The valve to be operated is, for example, in FIG.
The screw type sluice valve 1 is buried underground as shown in FIG. 7, and the valve element 3 is moved between the fully open position and the fully closed position by the rotation operation of the valve rod 2.

An opening degree meter 4 is attached to the valve rod 2 of the screw type sluice valve 1. The opening degree meter 4 is arranged so as to penetrate the upper end portion of the valve stem 2, and the screw type sluice valve 1 and the operation cap are provided. It is set by sandwiching it between 5 and. The opening degree meter 4 incorporates a gear train having a predetermined gear ratio inside a gear case 6 fixed to the gate valve main body,
The opening degree is displayed as the operation cap 5 rotates. The gear case 6 is provided with an RFID tag 7. The RFID tag 7 includes an electromagnetic coupling system, an electromagnetic induction system, a microwave system,
Although any method such as an optical method may be used, an electromagnetic induction method is adopted in this embodiment. The RFID tag 7 stores in advance at least opening / closing operation direction information and deadline torque information as data. Further, as the data, it is possible to store an identification number for identifying the screw type sluice valve 1, a name, a model, a caliber, a shutoff rotation speed, and the like.

As shown in FIGS. 1 to 5, the operating device 51 has a main body device 52 provided with an operation handle 53, and the main body device 52 has a built-in motor 54 having a torque sensor (not shown). The shaft 55 of the shaft portion has a boss portion 56 fitted to the operation cap 5 of the valve rod 2 at one end, and the other end of the shaft 55 is connected to the motor 54 of the main body device 52.

A protective tube 57 which is arranged so as to cover the shaft 55.
Has a protective cover 58 at one end, and the other end of the protective tube 57 is fixed to the main body device 52. The protective cover 58 is arranged so as to cover the boss portion 56, and has an RFI at the lower end.
An antenna 59 arranged near the D tag 7 is provided.

The main body device 52 has an opening instruction switch 60 for instructing the valve opening operation on the top surface, a closing instruction switch 61 for instructing the valve closing operation, and a liquid crystal display 62. It has an operation unit 63 composed of a keyboard that can be rocked back and forth on the front surface, and performs reading and writing operations of information through an antenna 59 inside and reading and reading the instruction values of the opening instruction switch 60 and the closing instruction switch 61. And a control device 64 that controls the drive of the motor 54 based on the information. The control device 64 includes a read circuit 65 and a motor control circuit 66.

The operation of the above structure will be described below. At the time of operation, the operation device 51 is inserted from the operation port on the ground surface toward the screw-type sluice valve 1, the boss portion 56 is fitted to the operation cap 5 of the valve rod 2, and the antenna 59 is arranged close to the RFID tag 7. Then, the information recorded in the RFID tag 7 is read out to the reading circuit 65 of the main body device 52 through the antenna 59 and the information is displayed on the display 62. The information to be displayed is, for example, a valve management number, a valve name, a model, a diameter, a maker name, an operation direction, a shutoff torque, and the like. As a result, the operator does not need to visually check the opening degree of the valve buried underground, and can check the valve specifications without being obstructed by mud or insufficient lighting.

Next, the operator turns on the opening instruction switch 60 when opening the valve, and turns on the closing instruction switch 61 when closing the valve. Control device 6 of main device 52
Reference numeral 4 denotes an opening instruction switch 60 and a closing instruction switch 61.
Of the motor 54 through the motor control circuit 66
Control the drive of.

For example, at the time of the opening operation, the opening instruction switch 6
When 0 is given and a cap opening instruction is given, the control device 64 rotates the valve rod 2 in the cap opening direction based on the read opening / closing operation direction information, and if there is no new instruction on the way, the torque at the fully open position is obtained. Is detected and the motor 54 is stopped. The control device 64 can stop the motor 54 in response to the OFF signal of the opening instruction switch 60, or can stop the motor 54 after inputting the opening instruction switch 60 by inputting an input from the operation unit 63. is there.

When the closing instruction switch 61 is turned on in the closing operation, the control device 64 of the main body device 52 controls the driving of the motor 54 through the motor control circuit 66 based on the read opening / closing operation direction information and the cut-off torque information, and the closing direction. Rotate the valve rod 2 toward. If there is no new instruction on the way, the control device 64 determines that the time point when the torque of the motor 54 matches the deadline torque is the fully open position and stops the motor 54.

[0019]

As described above, according to the present invention, the control device determines the opening / closing direction based on the read information to perform the operation. Therefore, the operator determines the rotation direction of the valve stem required for the operation. It is possible to fully close the valve with a prescribed shutoff torque that produces a predetermined sealing surface pressure, without the necessity or misidentification.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional front view showing the configuration of an operating device according to an embodiment of the present invention.

FIG. 2 is a side view showing a main body device of the operating device.

FIG. 3 is a plan view of the operating device.

FIG. 4 is an explanatory diagram showing a principle of detection of the operating device.

FIG. 5 is an explanatory diagram showing an operating method according to the embodiment.

FIG. 6 is a front half sectional view showing a screw type sluice valve.

FIG. 7 is a side half sectional view showing a screw type sluice valve.

[Explanation of symbols]

1 screw type sluice valve 2 valve rod 3 valve body 4 Position gauge 5 Operation cap 6 gear case 7 RFID tag 51 control unit 52 Main unit 53 Operation handle 54 motor 55 shaft 56 Boss 57 Protection tube 58 protective cover 59 antenna 60 Opening instruction switch 61 Closing instruction switch 62 indicator 63 Operation part 64 control device 65 readout circuit 66 Motor control circuit

Continued front page    F-term (reference) 3H062 AA03 AA07 BB05 BB09 BB33                       CC01 EE07 FF41 HH03 HH07                 3H065 AA02 AA03 BA05 BB11 BC03

Claims (2)

[Claims] 1. An RFID in which information can be read out without contact, and opening / closing operation direction information and deadline torque information are stored in advance.
A valve with an information storage function characterized in that a tag is attached to the valve. 2. A valve operating machine for performing opening / closing operations of the valve with an information storage function according to claim 1, comprising: an information reading means for reading opening / closing operation direction information and deadline torque information stored in an RFID tag; and a valve rod. A drive motor having a torque sensor for rotationally driving a shaft portion fitted to the operation cap of FIG.
A valve operating machine comprising: a control device that controls a drive motor based on deadline torque information.