JP3242723U - Aggregation state measuring and monitoring device - Google Patents

Abstract

An object of the present invention is to provide an agglomeration state measuring and monitoring device that can be easily cleaned and that can improve maintainability. A cohesion state measuring and monitoring device (10) has a photographing means (11) housed in a housing part (12), and the housing part (12) protrudes downward into an arrangement opening (13A) provided at the bottom of a hollow arrangement member (13). Arranged detachably. The arrangement member 13 supports the storage section 12 and protects the storage section 12 from rainwater and insects. can be cleaned. [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to an aggregation state measuring and monitoring device for monitoring the formation state of flocs.

At a water purification plant, soil and turbidity contained in raw water are formed into small flocs (lumps) by the action of a flocculating agent in a flocculation pond, which is precipitated and removed. The flocculation pond has a mixing pond and a flocculation pond. The resulting small flocs are slowly agitated with a flocculator to form large flocs that are prone to settling. At that time, it is necessary to monitor whether or not flocs are formed to an appropriate size in the flocculation pond.

Conventionally, flocs have been visually monitored several times a day by maintenance managers of water purification plants. However, since the judgment was made empirically by visual observation, there was a problem that the judgment criteria became subjective. In addition, since the maintenance manager had to go to the flocculation pond and monitor it, it was troublesome and it was difficult to increase the number of times of monitoring. For this reason, it is difficult to quickly deal with poor cohesion, and there is a risk that the trouble will become more serious.

Therefore, a coagulation monitoring device was developed in which a photographing means for photographing the state of formation of flocs in the water to be monitored is arranged, and a back screen having squares is arranged opposite to the photographing means (see Patent Document 1). However, in this aggregation monitoring device, the photographing means is arranged inside one end of the pipe, and the one end of the pipe is immersed in the water to be monitored. There was a problem that it took time and effort to clean the inside of the installed pipes and was inferior in maintainability.

In addition, with conventional coagulation monitoring equipment, it is difficult to reliably confirm the collapse of floc formation when the turbidity of raw water before treatment rises sharply. There is also a problem that the timing is delayed and the turbidity of the treated water may increase.

Utility Model Registration No. 3199553

SUMMARY OF THE INVENTION The present invention has been made based on such problems, and a first object thereof is to provide an agglomeration state measuring and monitoring apparatus which can be easily cleaned and which can improve maintainability.

A second object of the present invention is to provide a condensation state measuring and monitoring device capable of suppressing an increase in turbidity of treated water due to fluctuations in turbidity of raw water.

The apparatus for measuring and monitoring the state of agglomeration of the present invention comprises a photographing means for photographing the state of formation of flocs in the water to be monitored, a housing portion for housing the photographing means therein, and a hollow portion protruding downward from the bottom portion of the housing portion. an arranging member that has an opening for detachably arranging the object in the water to be monitored and has an opening in a part of the side part, and for arranging at least a part of the storage part in the water to be monitored; and a back screen having grids formed on the surface facing the photographing means.

According to the present invention, the photographing means is housed in the storage section, and the storage section is detachably arranged in the installation opening provided at the bottom of the hollow placement member, so the storage section is supported by the placement member. It is possible to protect the storage part from rainwater and insects while keeping the storage part. Moreover, the inside of the storage section can be easily cleaned by removing the storage section from the arrangement opening of the arrangement member. Furthermore, since the opening is provided in a part of the side portion of the arrangement member, the storage section can be easily removed through the opening without opening and closing. Therefore, maintainability can be improved.

In addition, the photographing means is arranged downward, and the back screen is arranged below the housing portion by means of a mounting member, and the mounting member comprises a bottom portion and a pair of side portions formed so as to face each other in one direction. With this configuration, the photographing means and the back screen can be easily arranged, and the mounting member has a function as a control plate for slowing down the flow velocity of the water to be monitored flowing between the back screen and the storage section. can have.

Furthermore, by providing a turbidity sensor for detecting the turbidity of the water to be monitored, it is possible to reliably confirm collapse of floc formation, and to quickly and appropriately inject the coagulant. Therefore, it is possible to suppress an increase in turbidity of treated water due to fluctuations in turbidity of raw water.

In addition, by arranging the detection part of the turbidity sensor inside the floc control member, it is possible to suppress the occurrence of measurement errors due to the influence of flocs, and increase the turbidity of the treated water. can be suppressed with high accuracy.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure showing the cross-sectional structure of the aggregation state measurement monitoring apparatus which concerns on one embodiment of this invention. FIG. 2 is a diagram showing a cross-sectional configuration along the II line of the aggregation state measuring and monitoring device shown in FIG. 1; FIG. 2 is a view showing a part of the cross-sectional configuration taken along line II-II of the aggregation state measuring and monitoring device shown in FIG. 1; FIG. 2 is a diagram showing a cross-sectional configuration along line III-III of the aggregation state measuring and monitoring device shown in FIG. 1;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a cross-sectional configuration of an aggregation state measuring and monitoring device 10 according to one embodiment of the present invention. FIG. 2 shows a cross-sectional configuration along line I-1 shown in FIG. FIG. 3 shows a part of the cross-sectional structure taken along the line II-II shown in FIG. 1, and omits the illustration of the washing pipe 17A, which will be described later. FIG. 4 shows a cross-sectional configuration along line III-III shown in FIG.

This flocculation state measuring and monitoring device 10 is used to monitor the formation state of flocs in a water purification plant or the like. The aggregation state measuring and monitoring device 10 includes, for example, a photographing means 11 for photographing the state of formation of flocs in the water to be monitored, a storage section 12 for housing the photographing means 11 therein, and at least a part of the storage section 12 in the water to be monitored. and a back screen 14 arranged opposite to the photographing means 11 in the photographing direction.

The photographing means 11 is preferably configured by, for example, a web camera. This is because high performance can be obtained at low cost. A web camera is a camera that has an interface such as USB, IEEE, or 1394 that can be connected to a computer and can transfer images in real time, or that has a network interface and can be accessed via WWW. . The photographing means 11 is connected to a computer (not shown) by wire or wirelessly, for example.

The photographing unit 11 is arranged, for example, at the bottom of the storage unit 12 so that the photographing direction is downward. The storage section 12 is, for example, a hollow box-shaped body having an opening/closing section 12A on the upper surface, and the side surfaces and the bottom surface are made of a transparent member such as glass. The storage portion 12 is filled with, for example, a cushioning material and a desiccant (not shown) to prevent dew condensation inside the storage portion 12 .

The arranging member 13 is hollow, and has an arranging opening 13A in the bottom portion for detachably arranging the storage portion 12 so as to protrude downward, and an opening portion 13B in a part of the side portion. . The arrangement member 13 is for supporting the storage part 12 and protecting the storage part 12 from rainwater and insects. Specifically, the arrangement member 13 is configured by, for example, a hollow box-like body, one side of which is opened to form an opening 13B, and a bottom corresponding to the size of the storage section 12. 13 A of arrangement|positioning openings which can insert the accommodating part 12 are formed. A projecting portion 12B is formed in the upper portion of the storage portion 12 so as to project laterally beyond the installation opening 13A, for example. As a result, the storage portion 12 can be detachably arranged so as to protrude downward from the installation opening 13A.

The back screen 14 serves as a background when the photographing means 11 photographs the formation state of the flocs. The surface of the back screen 14 facing the photographing means 11 is preferably composed of a color with low brightness, more preferably black, so as to make a clear contrast with the flock, for example. In addition, for example, a grid 14A is formed on the surface of the back screen 14 facing the photographing means 11 . This is because the size and distribution of the flocs can be easily and objectively grasped by comparing them with the size of the grids 14A. The squares 14A are preferably made of, for example, a color with high brightness, and more preferably made of white. The size of the squares 14A is preferably about 5 mm square, for example.

For example, the back screen 14 is arranged on the lower side of the storage section 12 with an interval from the bottom of the storage section 12 by the mounting member 15 . The mounting member 15 has, for example, a bottom portion and a pair of side portions formed to face each other in one direction. 13. The back screen 14 is arranged, for example, on the bottom of the mounting member 15 .

It is preferable that the aggregation state measuring and monitoring apparatus 10 also includes illumination means 16 for illuminating the photographing area of the photographing means 11 . The illumination means 16 is for enabling monitoring even at night, and is preferably composed of an LED lamp. The lighting means 16 is, for example, fixed to the mounting member 15 and arranged near the photographing means 11 .

The aggregation state measuring and monitoring apparatus 10 preferably further includes cleaning means 17 for flowing cleaning water between the photographing means 11 and the back screen 14 . The cleaning means 17 is for cleaning flocs adhering to the back screen 14 or the storage section 12, for example. The cleaning means 17 has, for example, a cleaning pipe 17A for supplying cleaning water, and one end of the cleaning pipe 17A is fixed to the mounting member 15 and arranged near the back screen 14 and the storage section 12. ing.

In addition, the aggregation state measuring and monitoring device 10 is provided with a rectifying plate 19 for photographing that obstructs the flow of the water to be monitored in order to slow down the flow velocity of the water to be monitored flowing between the back screen 14 and the storage section 12. is preferred. The rectifying plate 19 for imaging is arranged, for example, on the upstream side of the storage section 12 in the flow direction of the water to be monitored, and is arranged on the mounting member 15 so as to close the opening side portion on the upstream side of the mounting member 15 . is set. The rectifying plate 19 for imaging is provided with one or a plurality of circulation holes 19A for circulating the water to be monitored toward the storage section 12, for example.

The aggregation state measuring and monitoring device 10 preferably additionally includes a turbidity sensor 18 that detects the turbidity of the monitored water. This is because by combining the photographing means 11 and the turbidity sensor 18, it is possible to reliably confirm the collapse of floc formation, and to quickly and appropriately inject the chemical. The turbidity sensor 18 is preferably arranged near the photographing means 11, for example. Moreover, it is preferable to arrange the detection part of the turbidity sensor 18 inside the floc control member 20 that controls the inflow of floc. This is because, if affected by flocs, the measured value will undulate, resulting in a measurement error. The floc control member 20 has, for example, a multi-layered structure having an outer hollow tube 21, a central hollow tube 22, and an intermediate hollow tube 23. It is arranged inside the hollow tube 22 .

The outer hollow tube 21, the central hollow tube 22, and the intermediate hollow tube 23 are each composed of a hollow tube such as a polyvinyl chloride tube, and both ends thereof are open, for example. The outer hollow tube 21 is arranged at the outermost part, and is provided with an outer inflow hole 21A for allowing monitoring target water to flow from the outside to the inside at one end side in the length direction. The central hollow tube 22 is arranged inside the outer hollow tube 21, and is provided with a central inlet hole 22A at one end side in the longitudinal direction for allowing the water to be monitored to flow from the outside to the inside. there is The intermediate hollow tube 23 is shorter than the outer hollow tube 21 and the central hollow tube 22, and between the outer hollow tube 21 and the central hollow tube 23, the outer inflow hole 21A and the central inflow hole 21A are formed. It is arranged so as to block the gap with the hole 22A. As a result, for example, the water to be monitored enters between the outer hollow tube 21 and the intermediate hollow tube 23 from the outer inflow hole 21A, and flows between the intermediate hollow tube 23 and the central hollow tube 22 and into the center. It is designed to flow into the central hollow tube 22 through the inflow hole 22A. It should be noted that it is preferable that a rectifying plate 24 for sensor is provided at the other end in the length direction of the outer hollow tube 21 and the intermediate hollow tube 23 respectively.

This aggregation state measuring and monitoring device 10 is used, for example, in a water purification plant as follows. First, for example, at least part of the storage unit 12, the floc control member 20, and the turbidity sensor 18 are immersed in water to be monitored in a coagulation pond (for example, a flocculation pond). Next, the photographing means 11 photographs the state of formation of flocs in the water to be monitored, and the turbidity sensor 18 detects the turbidity. The image photographed by the photographing means 11 and the turbidity detected by the turbidity sensor 18 are sent to, for example, a computer and can be viewed on the screen of the computer.

At this time, since the squares 14A are formed on the back screen 14, the flock and the squares 14A are displayed in the image photographed by the photographing means 11.例文帳に追加The maintenance manager can objectively grasp the size and distribution of the flocs by comparing the projected flocs with the size of the squares 14A. For example, if the size of the floc is smaller than the specified size, the maintenance manager should increase the amount of flocculant to be put into the flocculation pond, and if the size of the floc is larger than the specified size, Reduce the amount of flocculant put into the In addition, the maintenance manager observes the turbidity detected by the turbidity sensor 18, increases the amount of flocculant to be put into the flocculation pond when the turbidity rises, and increases the amount of flocculant to be put into the flocculation pond when the turbidity decreases. Reduce quantity. Thereby, the turbidity of the treated water can be stably maintained.

Further, when cleaning the inside of the storage section 12, for example, a hand is put into the inside of the arrangement member 13 through the opening 13B, the storage section 12 is lifted and removed from the arrangement opening 13A of the arrangement member 13, and the opening/closing section 12A is removed. open and clean.

As described above, according to the present embodiment, the photographing means 11 is housed in the housing portion 12, and the housing portion 12 is detachably disposed in the mounting opening 13A provided in the bottom portion of the hollow disposing member 13. Therefore, while supporting the storage portion 12 by the arrangement member 13, the storage portion 12 can be protected from rainwater and insects. Further, by removing the storage portion 12 from the installation opening 13A of the placement member 13, the inside of the storage portion 12 can be easily cleaned. Furthermore, since the opening 13B is provided in a part of the side portion of the arrangement member 13, the storage section 12 can be easily removed through the opening 13B without opening and closing. Therefore, maintainability can be improved.

In addition, the photographing means 11 is arranged downward, the back screen 14 is arranged below the storage portion 12 by means of the mounting member 15, and the mounting member 15 is a pair formed so as to face the bottom portion in one direction. , the photographing means 11 and the back screen 14 can be easily arranged, and the water to be monitored flowing between the back screen 14 and the storage portion 12 can be easily disposed on the mounting member 15. It can have a function as a control plate that slows down the flow velocity.

Furthermore, by providing a turbidity sensor 18 for detecting the turbidity of the water to be monitored, it is possible to reliably confirm the collapse of floc formation, and to quickly and appropriately inject the coagulant. Therefore, it is possible to suppress an increase in turbidity of treated water due to fluctuations in turbidity of raw water.

In addition, if the detection part of the turbidity sensor 18 is arranged inside the floc control member 20, it is possible to suppress the occurrence of measurement errors due to the influence of flocs, and the turbidity of the treated water increases. can be suppressed with high accuracy.

Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above-described embodiments and examples, and various modifications are possible. For example, in the above embodiments, each component was specifically described, but not all components may be included, or other components may be included.

DESCRIPTION OF SYMBOLS 10... Aggregation state measurement monitoring apparatus 11... Photographing means 12... Storage part 12A... Opening/closing part 12B... Protrusion part 13... Arrangement member 13A... Arrangement opening 13B... Opening part 14... Back screen 14A Grid 15 Mounting member 16 Lighting means 17 Washing means 17A Washing pipe 18 Turbidity sensor 19 Rectifying plate for photographing 19A Distribution hole 20 Flock control member 21 Outside Hollow tube 21A Outer inflow hole 22 Central hollow tube 22A Central inflow hole 23 Intermediate hollow tube 24 Straightening plate for sensor

Claims (4)

a photographing means for photographing the state of formation of flocs in the water to be monitored;
a storage unit for storing the photographing means inside;
It has a hollow shape, and has an installation opening in the bottom for detachably arranging the storage section so as to protrude downward, and has an opening in a part of the side section to cover at least a part of the storage section. an arrangement member to be arranged in water to be monitored;
A condensation state measuring and monitoring apparatus comprising: a back screen arranged opposite to the photographing means in the photographing direction, and having grids formed on a surface facing the photographing means. The photographing means is arranged so that the photographing direction faces downward,
The back screen is arranged below the storage portion by a mounting member,
The mounting member has a bottom portion and a pair of side portions formed to face each other in one direction, and is arranged with a gap between the bottom portion and the side portions of the storage portion. The aggregation state measuring and monitoring device according to claim 1. 3. The aggregation state measuring and monitoring apparatus according to claim 1, further comprising a turbidity sensor for detecting turbidity of water to be monitored. The detection unit of the turbidity sensor is arranged inside a floc control member that controls the inflow of flocs,
the flock control member has an outer hollow tube, a central hollow tube and an intermediate hollow tube;
The outer hollow tube is provided with an outer inflow hole for allowing the water to be monitored to flow from the outside to the inside on the side part on one end side,
The central hollow tube is arranged in the outer hollow tube, and is provided with a central inflow hole on one end side portion for allowing the water to be monitored to flow from the outside to the inside,
The intermediate hollow tube has a length shorter than that of the outer hollow tube and the central hollow tube, and the outer inflow hole and the central inflow hole are formed between the outer hollow tube and the central hollow tube. 4. The aggregation state measuring and monitoring apparatus according to claim 3, wherein the detecting portion of the turbidity sensor is arranged inside the central hollow tube.

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