JPH033897B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention is an automated method for quantitatively collecting a small amount of sample liquid over a long period of time for water quality testing. Concerning continuous sampling machine.

[Prior Art] Conventionally, sample liquid collection has been performed using a suction pump.

[Problems to be Solved by the Invention] However, when a suction pump is used to collect a sample liquid, if the size of the sample liquid inlet is set below a certain level, suction becomes impossible. It is difficult to keep the amount below a certain level, and the total amount to be collected becomes large.
It is not appropriate to collect the amount necessary to store it separately and to test changes in water quality depending on the time of day, but also in an amount suitable for carrying by humans.

An object of the present invention is to provide an automatic continuous sample liquid sampling machine capable of quantitatively and continuously collecting a small amount of sample liquid over a long period of time.

[Means for Solving the Problems] In order to achieve the above object, the present invention employs the following configuration.

The quantitative automatic continuous collection machine for sample liquid includes a hollow ring-shaped float equipped with a net on the lower surface, and is arranged on the float so as to rotate at a constant speed at a predetermined speed on a plane perpendicular to the surface of the sample liquid. A rotating body, a plurality of liquid sampling buckets suspended at equidistant positions on a circumference centered on the rotational axis of the rotating body, and at least one liquid sampling bucket provided on the rotating circumference of the liquid sampling bucket. One striking pin, a plurality of reservoirs for storing the sample liquid, and each intake port connected to these reservoirs are arranged vertically at a predetermined level in a bottomed cylindrical body from which the sample liquid is discharged. The sample liquid is pumped up by the liquid sampling bucket and discharged by the striking pin,
and a liquid injection order sorting device for sorting by time zone.

The quantitative automatic continuous sampling device for sample liquid includes a hollow ring-shaped float equipped with a net on the lower surface, and is arranged on the float so as to rotate at a constant speed at a predetermined speed on a plane perpendicular to the surface of the sampled liquid. The rotating body has a shape such as an inverted triangular pyramid, an inverted quadrangular pyramid, or an inverted conical shape formed by a triangular, quadrangular, etc. plane such that the upper part is largely opened and the lower part has a protruding end, and a plurality of liquid sampling buckets suspended at equidistant positions on a circumference centered on the rotational axis of the rotating body; and at least one striking pin provided on the rotational circumference of the liquid sampling bucket; , a plurality of reservoirs that store the sample liquid and are surrounded by a heat insulating material, and respective intake ports connected to these reservoirs are vertically arranged in a bottomed cylindrical body from which the sample liquid is discharged. A liquid injection order sorting device is provided, which is arranged with a step, and sorts the sample liquid pumped up by the liquid sampling bucket and discharged by the striking pin according to time zone.

[Action and effect of invention] The present invention has the following functions and effects.

<Regarding Claim 1> (Function) The liquid sampling bucket sinks under the surface of the collected liquid at the lower position due to the rotation of the rotating body to assemble the sample liquid, and at the upper position it hits the striking pin and tilts to collect the sample liquid. is dripped and discharged into the bottomed cylindrical body.

The sample liquid is divided into time zones (injected sequentially from the reservoir with the lowest intake port) by a liquid injection order sorting device and stored in a plurality of reservoirs.

(Effects) The sample liquid can be collected quantitatively and continuously over a long period of time according to the passage of time, and the sample liquid can be stored in sections according to time periods.

A net attached to the bottom of the float removes large particles and allows sample liquid to be collected.

By floating the sampling device on sampling liquids such as running water or drainage channels, these liquids can be automatically and continuously sampled.

<Regarding Claim 2> The liquid sampling bucket has an inverted triangular pyramid shape, an inverted quadrangular pyramid shape, or an inverted conical shape, which is formed of a triangular, quadrangular, etc. plane, with a large opening at the top and a tip at the bottom. It has a shape such as Therefore, even if the capacity of the liquid sampling bucket is made very small, the bucket can pump up a fixed amount (trace amount) of the sample liquid, regardless of the influence of the surface tension of the liquid to be collected.

Since the reservoir is surrounded by a heat insulating material, it is possible to prevent the collected sample liquid from deteriorating due to changes in liquid temperature.

[Example] Next, the present invention will be explained based on an example shown in the drawings.

Figure 1 is a partially cutaway front view of this embodiment;
The figure is a side view thereof.

1 is a rectangular hollow annular body, that is, a float, and has a circular cross section. On the bottom surface of the float 1,
A net 2 covering the inside of the annular body is attached, and a substrate 4 having a large opening 3 near one side of the center on the upper surface thereof is fixed at a position near one end of the annular body 1. A box body 5 made of a heat insulating material is removably fitted into the opening 3 of the substrate 4 from above. Further, a drive device box 8 with a drive shaft 7 protruding from the other end is attached to the center of the other end side 6 of the opening 3 on the substrate 4, and a power source (rechargeable Ni-Cd) is installed in the drive device box 8. A battery), a motor, and a speed reducer are housed therein, and the drive shaft 7 is configured to rotate at a constant speed at a predetermined slow speed. A disk-shaped rotating body 9 that rotates perpendicularly to the surface of the collected liquid is connected to the drive shaft 7 at a position such that its lower side touches the liquid surface. A plurality of liquid sampling buckets 1 (eight in this embodiment) are arranged at equal intervals on the circumference on the outer circumferential side of the rotating body 9.
0 is rotatably suspended, and a sample tray 12 is attached to the top of the box 8, to which rod-shaped striking pins 11 are attached at equal intervals so as to be perpendicular to the rotational circumference of the liquid sampling bucket 10. is,
A collective discharge port 13 provided at the bottom end of the sample tray 12 is connected to an injection pipe 14 provided at the top of the heat insulating box 5 by a flexible pipe 15.

As shown in FIG. 1, an inlet 16 connected to the inlet pipe 14 is provided inside the heat insulating box 5 at a position on the central axis of the upper side of the cylindrical body 17, and the cylindrical body 5 is installed upright. A plurality of (six in this embodiment) dividing cylindrical intake ports 18 are provided inscribed in the inner wall of the body 17 and have steps at predetermined intervals in the vertical direction.
A plurality of storage containers each having the same predetermined internal capacity are provided at each of the discharge ports 19 of the sorter 20, which is formed by providing a plurality of discharge ports 19 corresponding to the plurality of intake ports 18 on the lower side of the cylindrical body 17. 21 is installed.

Next, the operation of the quantitative automatic continuous sampling machine for sample liquid of this embodiment will be explained along with its functions and effects.

(1) Float the main body above the running water, drainage channel, etc. from which the sample liquid will be collected, and operate the motor.

(2) The fast rotation of the motor becomes a large rotational force with a slow torque generated by the reducer, and the drive shaft 7
The rotating body 9 rotates at a slow constant speed.

(3) When the liquid sampling bucket 10 reaches the lower position due to the rotation of the rotating body 9, it is above the net 2 and submerged below the surface of the sampling liquid from which particles larger than the net 2 have been removed, and the sample is collected. Pump up the liquid.

In the upper position, the striking pin 11 is rotated
The sample liquid is continuously tilted and struck, and all of the sample liquid that has been pumped up is discharged into the sample tray 12.

By performing this operation slowly,
A small amount of sample liquid is collected quantitatively and continuously over a long period of time.

In addition, in this embodiment, since the liquid sampling bucket 10 is used in the shape of an inverted triangular pyramid (or an inverted conical shape) with a wide opening at the top, the liquid sampling bucket 10 is
Even if the capacity of the bucket 10 is made very small, the bucket 10 can pump up a fixed amount of the sample liquid, regardless of the influence of the surface tension of the sample liquid.

(4) Further, the sample liquid enters the cylindrical body 17 from the collective discharge port 13 via the pipe 15, the injection tube 14, and the injection port 16. Note that the area after the outlet of the injection pipe 14 is inside the box 5 made of a heat insulating material. By storing the sample liquid in the insulating box 5 in this way, deterioration due to changes in liquid temperature can be prevented.

(5) Inside the insulating material box 5, the liquid injection order sorting device 22 is installed as described above, so that the reservoir is filled with the sample liquid in order from the one with the lowest intake port, and the sample liquid is It is divided into bands.

In addition, the capacity of the liquid sampling bucket 10 and the storage container 2
If a capacity of 1 is selected, the time period of the sample liquid stored in each reservoir can be determined with high precision.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of an automatic quantitative continuous sample liquid sampling device according to the present invention, and FIG. 2 is a partially cutaway side view thereof. In the figure, 1...Float, 2...Net, 5...Insulating box (insulating material), 9...Rotating body, 10...Liquid sampling bucket, 11...Blowing pin, 17...Cylindrical shape Body (bottomed cylindrical body), 18...Intake port, 21...Storage vessel.

Claims (1)

[Scope of Claims] 1. A float having a hollow annular shape with a net attached to the lower surface; a rotating body disposed on the float so as to rotate at a constant speed at a predetermined speed on a plane perpendicular to the surface of the collected liquid; a plurality of liquid sampling buckets suspended at equidistant positions on a circumference centered on the rotational axis of the rotating body; and at least one impact provided on the rotational circumference of the liquid sampling bucket. A pin, a plurality of reservoirs for storing the sample liquid, and intake ports connected to these reservoirs are arranged with a predetermined step in the vertical direction in a bottomed cylindrical body from which the sample liquid is discharged. and a liquid injection order sorting device for sorting the sample liquid pumped up by the liquid sampling bucket and discharged by the striking pin according to time period. 2. A float having a hollow annular shape with a net attached to the lower surface; a rotating body disposed on the float so as to rotate at a predetermined speed on a plane perpendicular to the surface of the collected liquid; and a large opening at the top; It has a shape such as an inverted triangular pyramid, an inverted quadrangular pyramid, or an inverted conical shape formed by a triangular, quadrangular, etc. plane and has a protruding end at the lower part, and a circle centered on the rotation axis of the rotating body. a plurality of liquid sampling buckets suspended at equidistant positions on the circumference; at least one striking pin provided on the rotational circumference of the liquid sampling bucket; A plurality of reservoirs surrounded by a material and respective intake ports connected to these reservoirs are arranged with a predetermined step in the vertical direction in the bottomed cylindrical body from which the sample liquid is discharged, A quantitative automatic continuous sampling machine for a sample liquid, comprising a liquid injection order sorting device for sorting the sample liquid pumped up by a liquid sampling bucket and discharged by the striking pin according to time period.