JPS58101399A - Fluid equipment monitor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention is concerned with determining whether fluid equipment such as piping, valves, pressure vessels, etc. is functioning normally, and whether the fluid contained within the equipment is leaking. The present invention relates to a fluid equipment monitoring device for monitoring etc.

Background of the Invention In nuclear reactor plants, chemical plants, etc., it is important to check whether or not the fluid equipment such as piping, valves, pressure vessels, etc. located in the zone are functioning normally. It is necessary to constantly monitor whether or not the fluid contained in the equipment is leaking.

Such monitoring is generally performed remotely at a location away from the monitored unit.

Fig. 1 shows a conventional fluid equipment monitoring system, illustrating a case in which a pipe 2 installed in a nearly horizontal direction within a reactor/runt 1 and nine valves J inserted in the middle are monitored. It is.

A valve stem 4 of the valve 3 protrudes to the outside of the pipe 20, and an operating handle 5 is attached to its tip. (9) The valve shaft 4 is screwed into a mounting seat 6 attached to the wall of the pipe 20, and by rotating the handle I to move the valve shaft 4 up and down, the valve can be opened once. configured to adjust. Piping 1
A switch V support piece 1 is provided on the outer surface of the switch V at a position near the valve SO.

These switches 1. #0 ah lol f.

Both the am and pm face the valve shaft 4, and a striker 10 is provided on a part of the valve shaft 4.

Then, when the valve stem 4 rises and the valve 1 is fully opened, the striker 1# moves upward (ty) The switch 1 is closed and the valve open indicator 2-7" JJ provided outside the gland 1 lights up. Therefore, when the nine-valve shaft 4 descends and valve a is fully closed, fluid aO
When the flow path is disconnected, the striker 1# closes the lower button switch 1 and lights up the external O valve close indicator 11 of the engine.

On the other hand, an imaging device 11 is installed inside S of the nuclear reactor plant 1 so as to take images of the piping 1 and the vicinity of the valve 10. An illumination lamp 14 for illuminating the imaged area is attached below the image pickup device IIO. Furthermore, an image receiver 15 is installed outside the reactor brand 1, and a cable 15 connects the image pickup device 13 and the image receiver it+.

Therefore, the situation of the pipe 2 and the valve 3 is imaged by the imager 73, and the imaged result is displayed as an image on the image receiver 1j. Therefore, the status of the fluid equipment (pipes 1, valves 3) in the reactor brand 1 can be constantly monitored through the image receiver 14.

Problems with the Background Art The conventional monitoring device as described above simply relies on the imaging device IJ.
4. Only the external appearance of the imaged fluid equipment is captured as an image signal through the image receiver 1j, but even if there is an abnormality in the internal mechanism of the valve SO that does not appear on the external appearance, Hitoshi and Hiro work together to find it. ★Pipe wall of pipe 2, valve shaft 4 and installation dust 6
The drawback is that even if a small amount of fluid leaks between the two, it may be overlooked.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a fluid equipment monitoring device that can immediately detect abnormalities in parts that cannot be detected due to mere appearance, and that does not overlook even the slightest leakage.

Summary of the Invention The fluid device monitoring device of the present invention has an external surface of the device that changes color depending on the state of the fluid contained inside (e.g., leakage to the outside). A color change detection section is provided, an image of the color detection section is taken by an image pickup device, and the image pickup result is displayed as an image by a color receiver at a remote location.

For example, if a color change detection part that changes color due to temperature change is installed in a part where the temperature changes depending on the state of the fluid, an abnormality will occur if the color change detection part does not change color when it should. It can be determined that 9. nine,
For example, if a discoloration detection section that changes color due to adhesion of fluid is provided outside the device, it can be determined that fluid leakage has occurred if the discoloration detection section changes color.

Examples of the invention First, the embodiment shown in FIG. 2 will be described.

Fig. 2 shows a pipe 102 arranged almost horizontally inside a nuclear reactor plant 101, and a valve 1 inserted in the middle of the pipe 102.
This shows a monitoring device that monitors the status of pipe 10.
2 and valve 103 are fluid devices to be monitored.

Valve 10.3C) The valve stem 104 protrudes to the outside of the pipe 102, and an operating handle 105 is attached to its tip.

The valve shaft 104 is screwed into a mounting seat 106 attached to the wall of the pipe 102, and the valve shaft 104 is moved up and down by rotating the handle 105t.2. Especially,
It is configured to adjust the opening degree of the valve. Piping JOI
On the outer surface of the jar, there is a switch support piece located near the valve 101.
is attached parallel to the valve shaft 104, and a limit switch Idle 10G is attached above and below this support piece 101. The armatures 108 and 109 of these switches 108 and 109 both face the valve shaft 104, and a striker 110 is provided on a portion of the valve shaft 104.

Then, when the valve shaft 104 rises and the valve 103 is fully opened, the striker 774) closes the upper right switch 108 and lights up the valve open indicator lamp 111 provided outside the f-rant 101. When the valve shaft 104 is lowered and the valve 10B is fully closed, the fluid flow path is cut off, and the striker 110
Close M! 2nd 101 External Valve Closed Display Runno 11
2 is lit.

1+ On the outer surface of the piping 102, there are arrow-shaped discoloration detection sections 113 on the upstream and downstream sides of the valve 103, respectively.
3 mm is provided to indicate the direction of flow of fluid a flowing inside the tube. These discoloration detection units 113m and 11p
B changes color due to temperature changes, and is constructed by pasting temperature-sensitive paper on the outer surface of the pipe 102, for example.

Furthermore, a circular discoloration detection section 114 is provided on the outer surface of the pipe 102 at a position near the mounting seat 10g. There is a rectangular discoloration detection section 116 on the bottom side of the pipe 102.
is provided long in the flow direction of fluid a. These discoloration detection parts 114 and 115 are for detecting leakage of fluid a, and are made by attaching something that easily absorbs fluid a, such as lidmus test paper, to the tube wall and impregnating it with phenolphthalene solution. It is constructed by applying the same paint to the pipe wall. Note that if the fluid a has a color, blotting paper of a different color may be attached to the pipe wall to serve as the discoloration detection parts 114 and 115 so that the device 116 can image the area around the pipe 102 and valve 1030. It is installed on. And this imaging device 11
An illumination lamp 11r is attached below 6 for illuminating the body part to be photographed. In addition, there is a cup outside the reactor runt 101.
A receiver 11# is installed, and the second image pickup device 116 and the color receiver 118 are connected by a cable 11#.

Next, the operation of the fluid device monitoring device configured as above will be explained.

Now, assume that the alkaline fluid 1 at a temperature of 50° C., for example, flows in the pipe 112. Here, when the valve 103 closes,
On the upstream side of the valve 103, the fluid in the pipe 112 does not flow, so the temperature remains at 50°C.
There is no fluid 1 on the downstream side of fluid 3, and the temperature begins to drop.

Therefore, for example, the discoloration detection sections 113 and 113B are
By making the color change to green at temperatures above 50° C. and red at temperatures below 50° C., whether or not the valve 103 is functioning normally can be monitored through the color receiver 111. In other words, if the valve 103 is functioning normally, when the valve 103 is open, both discoloration detection units 1
13m and JJ3m are both green and sandy, and when the valve is closed, the color change detection section 113B on the downstream side should change color to red. However, if the downstream detection unit 113B does not turn red even though the valve stem 104 is in the closed position, the valve 1
It can be determined that an abnormality has occurred in 03.

Furthermore, since the color change detection portions 1131 and 113B are shaped like arrows, there is an effect that the flow direction of the fluid a can be determined at a glance.

Further, when fluid a leaks from between the valve stem 10'4 and the mounting seat 10g, the leaked fluid flows down along the outer surface of the mounting seat 106 and adheres to the discoloration detection section 114. Therefore,
Since the color change detection unit 114Fi is colored, the color receiver 11
By monitoring through 8, even a small amount of leakage can be reliably detected.

In addition, if a crack 120 occurs on the pipe wall of the pipe 101 and the fluid a leaks from the crack 120, the leaked fluid a flows down along the outer surface of the pipe 101, and the discoloration detection unit 1
It attaches to 15.

The color change detection unit 115 will change color due to this, so please do not take care of this.
By monitoring with the receiver 118, even a small amount of leakage can be reliably detected.

Next, another embodiment shown in FIG. 3 will be described.

This embodiment is an example in which a T-shaped pipe 121 and a valve 122 inserted in the middle of the branch pipe 121 of this pipe 121 are monitored.

On the outer surface of the T-shaped pipe 1110, f11. Arrow-shaped discoloration detection sections JJJ, JJ4゜115, lCf-6 on the side and downstream side, and the upstream side and downstream side of the valve 121, respectively.
is provided to indicate the flow direction of the fluid flowing inside the pipe. All of these discoloration detection parts change color due to temperature changes, and for example, temperature sensing paper is connected to piping
It is configured by pasting it on the outer surface of the

Therefore, if valve 122 is functioning normally, valve 1
When the valve 22 is closed, the valve 122 -> downstream detection section 1
Only 2# will change color to indicate low temperature. Therefore, if the detection unit 126 downstream of the valve 121 does not change color even though the valve 121 is apparently in a closed state, it is possible to remotely monitor the detection unit 126 using a color receiver. Abnormalities can be detected immediately.

In the embodiment shown in FIG. 2, the discoloration detecting section is shaped like an arrow, circular, or rectangular, and the embodiment shown in FIG. 3 is also provided with an arrow-shaped discoloration detecting section. The shape is not limited to this. For example, as shown in FIG.
The type of fluid a flowing in the pipe 102 may be displayed as rH, OJ, etc. by another color change detection unit 118, such as VIJ, and the shape of the color change detection unit 121. In this case, one discoloration detection section 12F is connected to the valve 10J.
If the O color change detection unit 111 is provided on the upstream side of the valve 101 and the O color change detection unit 111 is provided on the downstream side of the valve 101, the valve 11
11 abnormalities can be detected. In the embodiment shown in FIG. 4, the same parts as in FIG. 12 are given the same reference numerals.

With such a configuration, in addition to obtaining the same effects as in each of the above-mentioned embodiments, the type of fluid and the location of the monitored equipment can be seen at a glance through the color receiver, allowing for the confirmation of abnormalities in P1 and the measures taken after an abnormality is discovered. This provides an effective mechanism that allows the process to be carried out more quickly.

Effects of the Invention The fluid machine S** device according to the present invention is provided with a color change detection section on the outer surface of the device that changes color according to changes in the state of the fluid contained therein, and the detection section is used for force 2-imaging. The device is configured to take a picture with the machine and display the result of the picture at a remote location using a receiver, so any malfunctions in the machine that cannot be detected from the mere appearance can be detected by discoloration of the detection part. It can be found immediately, and even the slightest leak can be detected, resulting in excellent effects.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing a conventional example of a fluid equipment monitoring device;
Fig. 2 is a schematic configuration diagram of a fluid equipment monitoring device showing one embodiment of the present invention, Fig. 93 is a plan view of piping, valves, and discoloration detection section showing another embodiment, and Fig. 41 is still another embodiment. FIG. 2 is a schematic configuration diagram of a fluid equipment monitoring device. 101... Nuclear reactor Zorant, 1oz, 111-Piping,
101,111・-valve, 113mu, JJJI. 114.115.111,114,116゜116.1
11, JJ#--discoloration detection section, 11--color camera, 118-color receiver, 120--shoes, ri.

Claims (4)

[Claims] (1) A color change detection unit that is provided on the outer surface of a device that comes into contact with a fluid and changes color according to changes in the state of the fluid, a color imager that photographs this color change detection unit, and a color imager that remotely captures the results of the image taken by the O imager. 9. A fluid equipment monitoring device comprising: a receiver for displaying an image at a certain position; (2) Patent requesting scope No. (1) characterized in that the color change detection section changes color due to temperature changes.
Fluid equipment monitoring device as described in Section 1. (3) Claim ff, wherein the color change detection section changes color due to adhesion of fluid
1) The fluid equipment monitoring device described in item 1). (4) The discoloration detection section is formed in a shape having a function related to the device.
Fluid machine I described in section 1)! Monitoring equipment.