JPH0816639B2 - Water quality monitoring equipment for rivers, drainage channels, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is to investigate whether or not there is a discharge of harmful pollutants or the like into rivers, drainage channels, etc., and if any, what time is it? The present invention relates to a monitoring device for specifying

[Prior Art] The applicant of the present invention has a float 1, a rotating body 2 that rotates orthogonal to the river water surface, a sampling bucket 3 suspended from the rotating body 2, and a sampling bucket 3 of the sampling bucket 3. A striking pin 4 provided on the circumference of rotation, a sampling container 7 for storing a sampling liquid 5,
The collection liquid 5 is poured and the collection container 7
A water quality monitoring device for rivers, drainage channels, and the like, which comprises a partitioning device 8 in which the openings of the intake pipes 6 communicating with each other are arranged at different heights. 58-
No. 223038) (see FIGS. 3 and 4).

[Problems to be Solved by the Invention] However, the conventional monitoring device has a drawback in that the collected liquids 5 that are divided according to the time zone enter and exit through the openings of the intake tubes 6 and are mixed.

An object of the present invention is to provide a water quality monitoring device for rivers, drainage channels, etc., in which mixing of collected liquids classified by time zone is prevented.

[Means for Solving the Problems] In order to achieve the above object, the present invention is configured to rotate a float having a hollow ring shape and a uniform speed at a predetermined speed on a plane orthogonal to a water surface such as a river or a drainage channel. A rotating body disposed on the float, and a plurality of liquid collection buckets suspended at equidistant positions on a circumference centered on a rotation axis of the rotating body,
At least one striking pin provided on the rotation circumference of the liquid sampling bucket, a plurality of sampling containers for accumulating the sampling liquid, the sampling liquid being poured and communicating with the sampling containers. In the water quality monitoring device such as a river, a drainage channel, etc., which is provided with a partitioner having openings of the intake pipes, which are arranged so that the heights thereof are different from each other, a conical communication hole spreading downward is formed in the axial direction, A rubber cap having a recess formed on the bottom surface is arranged at the inlet of the sampling container, and is located between the conical portion narrowing upward, the hollow spherical portion enclosing air, and the conical portion and the hollow spherical portion. A floating valve having a packing part is arranged in the collection container, and when the collection liquid in the collection container becomes substantially full, the conical part fits into the conical communication hole, and the packing part is Adopted a configuration that closes the recess .

[Operation and Effect of Invention] The present invention has the following operation and effect.

(Operation) The collection bucket is submerged in water such as a river or drainage channel at a lower position by the rotation of the rotating body to pump up the collection solution.

When the sample-collecting bucket comes to the upper position, the sample-collecting bucket tends to hit the striking pin and the sample-collecting liquid is discharged and flows into the sorter.

The collection fluid is initially taken from the intake tube which has an opening at the lowest height.

When the first collection container into which the collected liquid first fills is full, the floating valve receives buoyancy and rises, the conical portion of the floating valve fits into the conical communication hole of the rubber cap, and the packing portion closes the recess. Therefore, the collected liquid does not flow into the first collection container any more.

When the flow of the sampled liquid into the partitioner progresses and then the liquid level rises to the opening of the intake pipe arranged at a lower height, the sampled liquid is taken into the second sample container from the intake pipe.

Similarly, when the second collection container is full, the floating valve rises and the inflow of the collection liquid into that collection container is stopped.

In this way, the sampling liquid is sequentially taken in from the sampling container communicating with the intake tube having a low opening position.

(Effect) When the collected liquid in the collection container becomes almost full, the conical part of the floating valve fits into the conical communication hole of the rubber cap and the packing part closes the recess. The collected liquid that has flowed into the container does not mix with the collected liquid in the collection container that is already full. Further, the collected liquids taken into different collecting containers do not mix with each other.

Since the structure that divides the sampled liquid sampled according to time zone into the sampler container (the height of each opening 60 is different) and the structure that prevents the sampled liquids from mixing with each other (the floating valve 9 and the rubber cap 72) is simple, It does not cause a significant increase in the manufacturing cost of the water quality monitoring device.

[Embodiment] Next, the present invention will be described based on an embodiment shown in the drawings.

The water quality monitoring device A includes a float 1, a rotor 2 arranged on the float 1 so as to rotate at a constant speed on a plane orthogonal to the flowing water surface of the drainage channel, and a rotary shaft 21 of the rotor 2. Eight sample-collecting buckets 3 suspended at equidistant positions on the circumference of the circle, four impact pins 4 provided on the rotating circumference of the sample-collecting bucket 3, and the sample-collecting liquid. A total of eight sampling containers 7 for storing 5 and a partitioning device 8 in which the sampling liquid 5 is poured and the openings 60 of the intake pipes 6 communicating with the sampling container 7 are annularly arranged so that the heights thereof are different from each other. And are equipped with. Here, a floating valve 9 for closing the inlet of the collection container 7 from below is arranged in the collection container 7 when the collection liquid 5 in the collection container 7 becomes substantially full.

The float 1 is a hollow annular body filled with air, and a net 11 made of fine synthetic resin is stretched on the lower surface of the annular body. A base 13 for mounting the heat-insulating storage box 12 is arranged on the upper surface of the annular body.

The rotating body 2 has a substantially disc shape, and its center is fixed to the rotating shaft 21. The rotating shaft 21 rotates at a constant speed by decelerating the rotation of a motor (not shown) that rotates with a rechargeable battery.

The liquid sampling bucket 3 has an inverted quadrangular pyramid shape formed by a quadrangular plane so that the upper portion has a large opening and the lower portion has a protruding end. The bucket 3 is suspended by the rotating body 2 at 45 ° intervals.

The striking pin 4 is arranged in the upper opening of the tray 41 having a fan shape.

The collected liquid 5 is drainage collected from a drainage channel in which a harmful pollutant is expected to run off.

The sampling container 7 is formed of a material having excellent heat insulating properties, a circular container inlet 71 is opened in the upper portion, and a rubber cap 72 is fitted into the container inlet 71. The rubber cap 72 has a mortar-like end surface 73, and at the center thereof, a downwardly widening conical communication hole 74 that communicates with the outside with the smallest diameter hole diameter (about 3 mm) that allows the sample liquid 5 to flow into. It is formed in the axial direction. Further, a recess 75 is formed on the bottom surface of the rubber cap 72.

The partitioner 8 is a cylindrical container and has a discharge pipe 42 communicating with the tray 41 arranged at the center position.

The floating valve 9 (made of plastic) is a conical part that narrows upward.
91, a hollow spherical portion 92 filled with air, and a packing portion 94 located between the conical portion 91 and the hollow spherical portion 92. The conical portion 91 has a shape that fits exactly into the conical communication hole 74. The hollow spherical portion 92 has a substantially peanut shape. Packing part
94 is a soft tube 941 that is planted in a bulge
It is a structure that supports 42.

1 (a) shows the collection container 7 as seen from above, FIG. 1 (b) is its BB vertical sectional view, and FIG. 1 (c) is its CC vertical sectional view.

 Next, the operation of the water quality monitoring device A will be described.

The sampling bucket 3 is submerged in the water of the drainage channel at the lower position by the rotation of the rotating body 2 and pumps the sampling solution 5. Here, since the bucket 3 has an inverted quadrangular pyramid shape, the bucket 3 is not affected by surface tension so much (about 0.01cc).
It is possible to pump up the collected liquid 5 of.

When the sample-collecting bucket 3 comes to the upper position, the sample-collecting bucket 5 tends to hit the striking pin 4, and the sample-collecting liquid 5 is spilled and discharged to the tray 41. Here, the impact pin 4 is four, and the bucket 3
Is in the shape of an inverted quadrangular pyramid, the collected liquid 5 is discharged without remaining in the bucket 3.

The discharged collected liquid 5 flows into the partitioner 8 through the discharge pipe 42. It should be noted that the opening 60 of the intake pipe 6 does not come directly below the discharge pipe 42.

The collected liquid 5 collects in the partitioner 8 and is first taken in through the opening 60 of the intake pipe 6 arranged at the lowest height.

As shown in FIG. 2, when the first sampling container 7 into which the sampling liquid 5 is first filled up and the sampling liquid 5 is further accumulated up to the rear end of the intake pipe 6, the floating valve 9 is lifted by buoyancy. Then, the conical portion 91 of the floating valve 9 is inserted through the conical communication hole 74 of the rubber cap 72 from the inside, and the O-ring 942 is fitted in the recess 75, so that the collected liquid 5 is the first collected liquid. It does not flow into the intake pipe 6 communicating with the container 7.

2A shows the collection container 7 as viewed from above, FIG. 2B is its D-D vertical sectional view, and FIG. 2C is its EE vertical sectional view.

When the sampling liquid 5 flows into the partitioning device 8 and the liquid level in the partitioning device 8 rises up to the opening 60 of the intake pipe 6 arranged at the next lower height, the second sampling liquid from the intake pipe 6 is collected. The collected liquid 5 is taken into the container 7.

Similarly, when the second collection container 7 is filled with water, the floating valve 9 also rises and the collection liquid 5 stops flowing into the intake pipe 6.

In this way, the collection liquid 5 is sequentially taken from the collection container 7 that communicates with the intake pipe 6 having a low opening position.

In addition, the inlet of the collection container 7 is blocked, and another intake pipe 6
When the uptake of the sampled liquid 5 shifts to, the sampled liquid 5 in the sorter 8 and the sampled liquid 5 that has been pumped up are mixed with each other, but a problem occurs because the two pumping times are close to each other. Absent.

 Next, the operation and effect of the water quality monitoring device A will be described.

(A) The floating valve 9 closes the inlet of the collection container 7. Therefore, the collected liquid 5 that has been pumped up afterwards and has flowed into the partitioning device 8 does not mix with the collected liquid 5 in the already-collected collecting container 7. Further, the collection liquids 5 taken into different collection containers 7 do not mix with each other.

Here, when the collection container 7 is collected to detect harmful pollutants and the like, the above-mentioned mixing does not occur. Therefore, when the runoff of the harmful pollutants to the drainage channel is detected, the date and time is accurate. In addition to the above, it is possible to extremely accurately calculate the amount of spillage from the detected concentration of the collected liquid 5.

(A) Only the floating valve 9 and the rubber cap 72 prevent the collected liquids 5 from mixing with each other, which does not cause a significant increase in the manufacturing cost of the water quality monitoring device.

Since the end surface 73 of the rubber cap 72 has a mortar shape, the collection liquid 5 can be taken in smoothly.

When the water is full, the conical portion 91 of the floating valve 9 fits into the conical communication hole 74 of the rubber cap 72, and the O-ring 942 fits into the recess 75, thereby providing excellent sealing performance.

(C) Since both the collection container 7 and the storage box 12 are formed of a material having excellent heat insulating properties, the deterioration of the collection liquid 5 due to the temperature change can be prevented more effectively than the conventional one.

 The present invention includes the following embodiments in addition to the above embodiments.

a. The sampling bucket may be in the shape of an inverted triangular pyramid or an inverted cone with a wide upper opening. The size and the number are arbitrary.

b. The shape of the opening of the intake pipe and the floating valve that closes the opening is arbitrary.

c. As the power for rotating the rotating body at a constant speed, a solar cell and a motor, a mainspring, rubber power, or the like may be used.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing the structure of a sampling container and a floating valve of a water quality monitoring device according to the present invention, FIG. 2 is an explanatory diagram showing a collection liquid collected therein, and FIG. 3 is a water quality monitoring according to the present invention. FIG. 4 is a partially cutaway front view of the apparatus, and FIG. 4 is a partially cutaway side view thereof. In the figure, 1 ... Float, 2 ... Rotating body, 3 ... Collecting bucket, 4 ... Hitting pin, 5 ... Collecting liquid, 6 ... Intake tube, 7 ... Collecting container, 8 ... Sorting device , 9 ...... floating valve, 21
…… Rotary axis, 60 …… Opening, 71 …… Container inlet (entrance), 72
...... Rubber cap, 74 ...... Conical communication hole, 75 ...... Recess,
91: conical part, 92: hollow spherical part, 94: packing part, A: water quality monitoring device (water quality monitoring device for rivers, drainage channels, etc.)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-58-223038 (JP, A) JP-A-55-69037 (JP, A) JP-A-56-125644 (JP, A) JP-A-57- 194336 (JP, A)

Claims (1)

[Claims] 1. A float having a hollow ring shape, a rotor provided on the float so as to rotate at a constant speed on a plane orthogonal to the water surface such as a river or a drainage channel, and the rotor. A plurality of liquid sampling buckets suspended at equidistant positions on the circumference around the rotation axis, at least one striking pin provided on the rotation circumference of the liquid sampling bucket, and a liquid collection A plurality of collection containers for accumulating the collection liquid, and a partitioning device in which the collection liquid is poured and the openings of the intake pipes communicating with the plurality of collection containers are arranged so that the heights thereof are different from each other. In a water quality monitoring device for rivers, drainage channels, etc., a conical communication hole that spreads downward is formed in the axial direction, and a rubber cap with a recess on the bottom is installed at the inlet of the sampling container, Conical part, hollow spherical part enclosing air, And, a floating valve having a packing part located between the conical part and the hollow spherical part is arranged in the collection container, and when the collection liquid in the collection container becomes substantially full, the conical part becomes A water quality monitoring device for a river, a drainage channel, etc., characterized in that the packing part closes the recess while fitting into the conical communication hole.