JP2018178732A - Device and method for monitoring pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pump monitoring device for easily grasping a specified portion in a pump, and a pump monitoring method capable of repeatedly monitoring the same portion easily.SOLUTION: A pump monitoring method includes: detecting a specified portion in an inside of a monitoring target pump; adding positional information indicating the specified portion; and monitoring the specified portion with the positional information as a sign after elapse of a predetermined period.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a pump observation method and a pump observation device.

  A pump such as a vertical shaft pump is installed, for example, at a drainage station and discharges water in a suction water tank to a discharge water tank. If the pump continues to be used, the inside may deteriorate, wear or corrode, so it is necessary to monitor and diagnose the inside periodically. When deterioration or the like is detected, the site may be continuously observed to manage tendency.

JP, 2006-161790, A

  However, because the inside of the pump is dark or dirty, it is difficult to grasp where in the pump is being observed, and it is difficult to observe again the place where wear or deterioration is detected at the next inspection or diagnosis. Sometimes.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a pump observation device for easily grasping a specific site in a pump, and a pump capable of easily observing the same site repeatedly. It is to provide an observation method.

According to one aspect of the present invention, detecting the predetermined part inside the observation target pump, adding position information indicating the predetermined part, and after the predetermined period has elapsed, using the position information as a mark for the predetermined part Providing a pump observation method.
Since the positional information serves as a mark by attaching positional information to a predetermined site, the predetermined site can be easily observed repeatedly.

The position information may be attached by spraying paint.
The paint may be water resistant or fluorescent paint.
By injecting such a paint, position information can be appropriately attached in the pump.

The predetermined site may be a degradation site or a damage site.
As a result, it is possible to repeatedly and easily observe the deteriorated site or the damaged site.

According to another aspect of the present invention, there is provided a pump observation device comprising: an imaging device; and position information giving means in the observation target pump for adding position information to a position associated with the imaging target by the imaging device. Ru.
By attaching position information, the position can be easily observed repeatedly.

The position information giving means may be a paint jetting member for jetting a paint.
By injecting the paint, position information can be appropriately attached in the pump.

FIG. 2 is a schematic view of a vertical shaft pump 1; BRIEF DESCRIPTION OF THE DRAWINGS Schematic of the pump observation apparatus 100 which concerns on one Embodiment. The flowchart which shows an example of a pump observation procedure.

  Hereinafter, embodiments according to the present invention will be specifically described with reference to the drawings. Hereinafter, a vertical axis pump is illustrated as a pump to be observed.

  FIG. 1 is a schematic view of a vertical pump 1. The vertical pump 1 is provided with a pumping pipe 2, and sucks water from a suction port (suction bell mouth) 2a at the lower part thereof. The pumping pipe 2 is provided with a handhole 3. When observing the inside of the vertical pump 1, the hand hole 3 is opened, and the pump observation device is inserted into the water pumping pipe 2 through the hand hole 3. It may be necessary to observe the same site periodically after the site of deterioration or damage is found by observation.

So, in this embodiment, it observes using the following pump observation apparatuses 100. FIG.
FIG. 2 is a schematic view of a pump observation device 100 according to an embodiment. The pump observation device 100 includes an imaging device 11, a holding member 12, and a paint injection member 13.

  The imaging device 11 is a CCD camera or the like, and is held by the tip of the holding member 12 to configure the industrial endoscope 20. A wire connected to the imaging device 11 passes through the holding member 12, and power supply and control of the imaging device 11 are performed from the outside, and image data obtained by the imaging device 11 is transmitted.

  The holding member 12 and the paint jetting member 13 extend in the same direction. Then, the paint injection member 13 is attached to the holding member 12 by the fixing band 14 or the like. That is, the imaging device 11 and the paint injection member 13 are attached to each other through the holding member 12. The holding member 12 and the paint jetting member 13 are longer than the distance from the handhole 3 of FIG. 1 to the desired observation target. Further, it is desirable that the holding member 12 and the paint jetting member 13 be flexible.

  The imaging device 11 captures an image of the front as an observation target. The paint spray member 13 is a special paint in a position associated with the imaging target by the imaging device 11 according to the operation of the observer, in other words, in front of the imaging device 11 or in other words in the vicinity of the observation target in the pumping pipe 2 Inject 30. The paint 30 forms a mark by adhering to the inner surface of the water pumping tube 2. It is desirable that the paint 30 be a fluorescent paint or the like that is easy to view (is easy to be imaged) even if the brightness is high and dark. Moreover, since the paint 30 is injected into the water pumping pipe 2, it is desirable that the paint 30 be water resistant.

  In addition, it is preferable that the paint is not applied to the imaging device 11 by providing an injection port of the paint spraying member 13 forward in the paint jetting direction from the imaging device 11 or the like.

FIG. 3 is a flowchart showing an example of a pump observation procedure.
First, the handhole 3 of the pumping pipe 2 is opened, and the pump observation device 100 is placed inside. Then, the deteriorated part or the damaged part is detected based on the image acquired by the imaging device 11 (step S1). This detection may be performed by image processing such as comparison with a sample image, or may be performed by an observer. The detected site is a site that should be continuously observed and trend managed, and is hereinafter referred to as an observation required site.

  When a site to be observed is detected, the observer operates the pump observation device 100 to spray the paint 30 from the paint jetting member 13 to the same site or its vicinity (step S2). Since the positional information which shows a required observation site | part is attached by this, the coating material injection member 13 can be considered as a positional information provision means.

  After providing the position information, the pump observation device 100 is taken out from the pumping pipe 2, and the pump observation at this point is ended. After that, the site to be observed is observed again according to the timing (time) at the time of periodic inspection and function diagnosis. That is, the hand hole 3 is opened and the imaging device is inserted inside. The imaging apparatus may be the pump observation apparatus 100 itself shown in FIG. 2 or an imaging apparatus such as a normal industrial endoscope. Since a paint with high brightness is attached as position information to the site to be observed, even in the dark water pumping pipe 2, the image information acquired from the image acquired by the imaging device can be easily detected using the position information as a mark. It can be observed again (step S3). The observation site may be identified by image processing of a portion with high luminance, or may be identified while the observer looks at the image.

  As described above, in the present embodiment, a special paint is jetted to the necessary observation site in the pumping pipe 2. Therefore, when observing the inside of the pumping pipe 2 after that, the paint becomes prominent position information, and it is possible to easily grasp the necessary observation site. As a result, the site to be observed can be easily observed repeatedly. In the present embodiment, an example in which marking is performed by paint spraying is described, but position information may be attached by another method.

  The embodiments described above are described for the purpose of enabling one skilled in the art to which the present invention belongs to to practice the present invention. Various modifications of the above-described embodiment can naturally be made by those skilled in the art, and the technical idea of the present invention can also be applied to other embodiments. Therefore, the present invention should not be limited to the described embodiments, but should be the broadest scope in accordance with the technical idea defined by the claims.

1 Vertical pump 2 Pumping pipe 2a Suction port (suction bell mouth)
Reference Signs List 3 handhole 11 imaging device 12 holding member 13 paint injection member 20 industrial endoscope 30 paint 100 pump observation device

Claims (7)

Detecting a predetermined site inside the observation target pump;
Adding position information indicating the predetermined part;
Observing the predetermined part using the position information as a mark after a predetermined period has elapsed.   The pump observation method according to claim 1, wherein the position information is attached by injecting a paint.   The pump observation method according to claim 2, wherein the paint is water resistant.   The pump observation method according to claim 2, wherein the paint is a fluorescent paint.   The pump observation method according to any one of claims 1 to 4, wherein the predetermined site is a degraded site or a damaged site. An imaging device,
A pump observation device comprising position information giving means for giving position information to a position associated with an imaging target by the imaging device in an observation target pump.   The pump observation device according to claim 6, wherein the position information giving unit is a paint spraying member that sprays a paint.