JPH0247337Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a control panel for an emergency shutoff valve that is placed in water pipes or the like and automatically operates in the event of an abnormality such as a major earthquake.

[Conventional technology]

In recent years, as water sources for water supplies have been forced to be located in areas further away from consumption areas, it has become important to secure precious clean water stored in distribution reservoirs and reservoirs, and to protect water from pipes caused by disasters such as earthquakes and landslides. Emergency shutoff valves play an important role in detecting emergency conditions as quickly as possible and automatically shutting off the pipeline when an abnormality such as a pipeline breakdown occurs.

The above-mentioned emergency shutoff valve is disposed in the middle of a pipe, and a butterfly valve is often used.
No. 136288 "Emergency Shutoff Valve" is provided. The "emergency shutoff valve" of Utility Application No. 57-136288 has an underground butterfly valve structure in which a valve body is rotated around an upright valve shaft by an above-ground opening/closing machine to open and close a pipeline. It is characterized by converting the rotational movement of the output shaft of the opening/closing machine into the rotational movement of the valve shaft using a link mechanism and a cam mechanism.

Most of the above-mentioned emergency shutoff valves are used in combination with a seismometer or the like, and convert the seismic intensity of the seismometer into an electrical signal, which is used as an activation signal for closing the emergency shutoff valve. As mentioned above, the control panel that controls the emergency shutoff valve is installed close to the location where the emergency shutoff valve is installed, and even though the frequency of occurrence of emergency disasters such as earthquakes is extremely low, it is possible to ensure reliable operation in the event of an emergency disaster such as an earthquake. is required.

[Problem that the invention attempts to solve]

The above-mentioned emergency shutoff valves are often installed at important points in water distribution pipes, and they are installed not only in urban areas, but also in mountainous and remote areas such as reservoirs and water distribution ponds. Conventional emergency shutoff valve control panels use commercial power as their power source, but when installing in a location without power distribution equipment, it is necessary to install new power distribution equipment such as utility poles to supply the power source. Ta. Furthermore, even in places where power distribution equipment is available, it is necessary to conduct commercial power lead-in work to the control panel, and the cost for the power lead-in work is large. In addition, running costs (electricity costs) required for power supply after installation were required throughout the year.

This invention was created to solve the above problems, and it eliminates the need for external power supply to the control panel that controls the emergency shutoff valve, thereby eliminating the need for incidental work such as electrical work for power supply. The purpose is to provide a control panel for emergency shutoff valves.

[Means for solving problems]

A specific means for achieving the above purpose is to lock the valve body of the valve device in the open state with a lock device during normal times, and release the lock device to lock the valve in the event of an abnormality such as an earthquake or pipe breakage. In a control panel for an emergency shutoff valve that closes a valve, a solar cell is used as a power source for the control panel, and the control panel is configured to be installed outdoors, and the control panel includes a power section consisting of a solar cell and a storage battery; The present invention uses a control panel for an emergency shutoff valve, characterized in that an abnormality detection section that detects the occurrence of an abnormality and a control section that controls the valve closing operation of the valve body are housed and disposed integrally.

[Effect]

By using the above means, the power source of the control panel that controls the operation of the emergency shutoff valve is supplied by the solar cell, and the installation location can be freely set, and there is no need for electricity costs as running costs.

〔Example〕

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

FIG. 1 shows a front view A and a side view B of an external view of a control panel of an emergency shutoff valve according to an embodiment of the present invention. The control panel 2 is constructed firmly so that it can be installed outdoors, and the door 2a is locked. Inside the control panel 2, there is a base 2b on which a seismograph 3, which is an anomaly detecting section for detecting the occurrence of an anomaly, is solidly constructed on the ground surface of the control panel 2.
is fixed to. Further, a storage battery 4 constituting a power section is installed in the middle of the control panel 2. In this embodiment, a sealed lead acid battery 4 with good charging efficiency is used as the storage battery 4. Lead-acid batteries are known to have better charging efficiency than alkaline batteries when solar cells are used as the charging power source, and lead-acid batteries are also superior in terms of price, shape, size, maintenance, and especially electrolyte management. is advantageous.

A control section 5 that controls the operation of the emergency shutoff valve is configured on the inner wall surface of the control panel 2 . The emergency shutoff valve used in this embodiment uses an electromagnetic solenoid as a driving source for a locking device that releases a valve opening locking device and closes a pipeline. When the seismic intensity detected by the seismograph 3 exceeds a set value, the control section 5 receives a detection signal for operating an emergency shutoff valve, amplifies the signal, and drives a predetermined relay circuit.

A solar cell 1 serving as a power source in the power section is arranged on the roof top surface 2c of the control panel 2. As shown in FIG. 3, the solar cell 1 is constructed by arranging a necessary number of plate-shaped modules to form an array 1a, and in this embodiment, the array 1a is composed of two modules. The array 1a is movably arranged by a pedestal attached to the roof 2c of the control panel 2. As shown in FIG. 2, the above-mentioned pedestal includes a lighting angle adjustment plate 1b that allows the angle of the lighting surface of the array 1a to be adjusted arbitrarily, a fixed plate 1c that pivotally supports the adjustment plate 1b, and a lighting angle adjusting plate 1b that allows the angle of the lighting surface of the array 1a to be adjusted arbitrarily; A lighting direction adjustment shaft 1d that can arbitrarily adjust the rotation of the control panel 2 by inserting the adjustment shaft 1d.
It consists of a fixed shaft 1e that is fixed to.

To explain the above-mentioned frame in detail, an arc-shaped oval slot is bored in the lighting angle adjustment plate 1b, and it is fixed at an arbitrary angle by screwing with a fixing bolt provided on the fixing plate 1c. Ru. Also, lighting direction adjustment axis 1d
It is fixed by screwing a fixing bolt provided on the fixed shaft 1e in a direction in which the maximum amount of light can be obtained by rotating the fixed shaft 1e. The pedestal has been treated to prevent rust and is weather resistant for outdoor use.

The operation of the emergency shutoff valve control panel configured as described above will be explained. 4 and 5 are a block diagram showing the flow of electrical signals and a flow chart showing the relationship between the emergency shutoff valve 6 and the control panel 2 in this embodiment.
In the figure, the above-mentioned butterfly valve is used as the emergency shutoff valve 6, and the electromagnetic solenoid 6a, which is the drive source of the locking device that releases the holding of the valve-opening locking device, is turned off. A lead-acid battery 4 installed inside the control panel 2 is constantly charged by the electromotive force of the solar cell 1, which is placed on the top surface of the roof 2c and set in the direction and angle to receive the maximum amount of light. ing.

When an earthquake occurs while the pipeline is open under normal conditions as described above, the seismometer 3 fixed to the base of the control panel 2 will issue a detection signal if it detects a seismic intensity greater than a set value. . The detection signal is input to the control unit 5, where the signal is amplified, and the electromagnetic solenoid 6a which releases the opening lock device of the emergency shutoff valve 6 is energized to turn the electromagnetic solenoid 6a "ON". When the electromagnetic solenoid 6a is turned ON, the conduit is shut off by closing the emergency shutoff valve, and water flow downstream of the conduit is shut off.

The implementation of the present invention is not limited to the above-mentioned embodiments, and various embodiments may be adopted. For example, the abnormality detection unit in the present invention is not limited to a seismometer, but may also be a flow rate detector that detects abnormalities based on the flow rate in the pipe, or a flow rate detector that detects abnormalities based on the pressure difference between the primary and secondary sides of the orifice. A detector using a differential pressure switch for detection may also be used. Furthermore, when installing a control panel according to the present invention in an urban area, etc., it is a matter of course to attach a protective device to prevent damage to the solar cells.

If the control panel is installed indoors and the solar cells are installed on the roof of an existing building, etc., the control panel can be of a simple type, such as a wall-mounted type. It is natural that this method be applied and implemented.

[Effect of idea]

As explained above, by using the present invention, there is no need for distribution work for a commercial power source to obtain the power source for the control panel of the emergency shutoff valve, and the commercial power source is not installed near the location where the control panel is installed. The cost of power distribution work will be reduced in mountainous and remote areas. As a matter of course, there is no need to pay for electricity, which is a running cost after installation. Furthermore, since the solar cells are installed on the roof of the control panel, there is no need for a special structure for installing the solar cells, and the cost of building such a structure is also eliminated.

Since the angle and direction of the lighting surface of solar cells can be arbitrarily set to obtain the maximum amount of light depending on the installation location, it is possible to maximize utilization efficiency.

As described above, when installing the emergency shutoff valve, a control panel for the emergency shutoff valve is provided that can be installed at a low cost regardless of the installation status of the commercial power source.

[Brief explanation of the drawing]

Figure 1 is an external view of the control panel in one embodiment of the present invention, Figures 2 and 3 are external views of the solar cell and the mount, and Figures 4 and 5 are the emergency shutoff valve and control panel. FIG. 2 is a block diagram showing the flow of electrical signals between the The numbers in the figure indicate the following. 1...
Solar cell (power part), 1a...Array, 1b...
Lighting angle adjustment plate, 1d... Lighting direction adjustment shaft, 2...
...Control panel, 3...Seismometer (abnormality detection section), 4...
Lead-acid battery (power unit), 5...control unit, 6...emergency shutoff valve, 6a...electromagnetic solenoid.

Claims (1)

[Claims for Utility Model Registration] (1) The valve body of the valve device is locked in the open state by a locking device during normal times, and the locking device is released when an abnormality such as an earthquake or pipe breakage occurs. In a control panel for an emergency shutoff valve that closes a valve, a solar cell is used as a power source for the control panel, and the control panel is configured to be installed outdoors, and the control panel includes a power section consisting of a solar cell and a storage battery; 1. A control panel for an emergency shutoff valve, characterized in that an abnormality detection section that detects the occurrence of an abnormality and a control section that controls a valve closing operation of the valve body are housed and disposed integrally. (2) The emergency utility model as set forth in claim 1 of the utility model registration claim, characterized in that a solar cell is attached to the roof of the control panel, and the attachment direction and attachment angle can be arbitrarily adjusted. Shutoff valve control panel.