JPH0489566A - Water quality environment monitoring apparatus - Google Patents

Abstract

PURPOSE:To achieve a longer life of a water quality environment measuring sensor by providing a water pump to suck up water as sample and a water quality environment measuring sensor to measure a water quality environment of the water sucked up with the water pump. CONSTITUTION:Among a plurality of suction ports 111a-111e, a valve 112a alone of one suction port 111a is opened while the other valves 111b-111e are closed and a water pump 110 is operated to suck up water W to a sample chamber 120, at which 120 a water quality environment of the water W is measured with a water quality environment measuring sensor 130. Thus, only when the measurement of the water quality environment of water is required, the water is sent to the sample chamber 120 with the water pump 110 to measure the water quality environment with the sensor 130 at the sample chamber 120 thereby achieving a longer life of the sensor 130.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a device for monitoring environments related to water quality such as water pollution in aquaculture cages and the like.

<Prior Art> In the following description, it is assumed that the water quality environment in a fish cage for aquaculture is monitored.

Water quality environment in aquaculture cages, such as pollution, dissolved oxygen,
Water temperature, pH, etc. are factors that affect the growth of farmed fish, so monitoring these is important for fish farmers.

Conventionally, in order to perform such monitoring, a water quality environment measurement sensor that measures the water quality environment such as pollution is immersed underwater.

<Problems to be Solved by the Invention> However, the conventional device as described above has the following problems.

That is, since the water quality environment measurement sensor is constantly immersed in water, its lifespan is shortened. In addition, measurement errors will occur if the water around the water quality environment measurement sensor does not move.Furthermore, multiple water quality environment measurement sensors are required to monitor the water quality environment of multiple aquaculture cages, which increases the cost and maintenance. A problem arises in this regard.

The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a water quality environment monitoring device that can extend the life of a water quality environment measuring sensor, does not cause measurement errors, and is easy to maintain at low cost. It is an object.

<Means for Solving the Problems> A water quality environment monitoring device according to the present invention includes a pump that sucks up sample water, and a water quality environment measurement sensor that measures the water quality environment of the water sucked up by the pump. ing.

A plurality of suction ports that can be opened and closed by valves are connected to the water pump.

The water quality environment measurement sensor is installed in a sample chamber, and an overflow pipe for discharging overflowing water is connected to the sample chamber.

The water quality environment measurement sensor that has completed the water quality environment is either washed with washing water or automatically calibrated using a standard sample for calibration.

<Operation> First, among the plurality of suction ports, only one suction port is opened and the others are closed, and the water pump is activated to draw water into the sample chamber from the open suction port.

In the sample chamber, a water quality environment measurement sensor measures the water quality environment of the sucked up water. At this time, the water pump continues to operate until the measurement is completed, and water exceeding the volume of the sample chamber overflows from the overflow pipe, so the water quality environment measurement sensor always measures the water quality environment of new water.

When the measurement of the water quality environment of this water is completed, the pump is stopped and the water remaining in the sample chamber is discharged. At the same time, cleaning water is supplied to the sample chamber to clean the water quality environment measurement sensor and the sample chamber.

<Example> Hereinafter, an example according to the present invention will be described with reference to the drawings.

FIG. 1 is a schematic diagram of a water quality environment monitoring device according to an embodiment of the present invention.

The water quality environment monitoring device 100 according to the present embodiment includes a pump 110 that sucks water WI, which is a sample, from the aquaculture cages 2008 to 200e, and water quality environment measurement that measures the water quality environment of the water W sucked up by the pump 110. sensor 1
30.

A plurality of (five in the drawing) suction ports 111a to 111e are connected to the pump 110, and these suction ports 111
A to 111e are set one by one for each of the plurality of aquaculture cages 200a to 200e. This suction port 111a
-111e are provided with valves 112a-112e, respectively.

The water W1 sucked up by the pump 110 is transferred to the sample chamber 1.
Sent to 20th. This sample chamber 120 contains water W as a sample.
1 water quality environment, such as pollution level, dissolved oxygen, water temperature, pH 1
A water quality environment measurement sensor 130 is installed to measure the presence or absence of heavy metals.

Further, the sample chamber 120 includes a drain pipe 121,
An overflow pipe 122 is provided. The drain pipe 121 is connected to the bottom of the sample chamber 120, and is used to open the drain valve 121a and drain the water W2 after the measurement. In addition, the overflow pipe 122 is connected above the sample chamber 120, and among the water W sucked up by the pump 110, the sample chamber 1
This is to discharge the water W overflowing from 20. Therefore,
If the water pump 110 continues to operate while measuring the water quality environment, the water quality environment measurement sensor 130 will always come into contact with new water WI.

Further, the sample chamber 120 is connected to a cleaning section 140 that supplies cleaning water 141 for cleaning the water quality environment measurement sensor 130 after the measurement has been completed.

The measurement results 131 of the water quality environment measurement sensor 130 are as follows:
Output to the monitor section 135 and measurement result recording section 136,
It is now possible to monitor the water quality environment over time.

Measurement of water quality environment using such a water quality environment monitoring device will be explained.

First, among the plurality of suction ports 111a to 111e, only the valve 112a of one suction port 111a is opened, and the other valves 1llb to 111e are closed. In this state, the water pump 110 is operated, and the water W in the aquaculture cage 200a is
is sucked up into the sample chamber 120.

In the sample chamber 120, the water quality environment measurement sensor 130 detects water W,
to measure the water quality environment. At this time, the water pump 110 continues to operate until the measurement is completed, and the volume of the sample chamber 120 is 1! Since the above water W3 overflows from the overflow pipe 122, the water quality environment measurement sensor 130 is constantly exposed to new water W, and the water quality environment of the new water W1 is measured.

The measurement results 131 of the water quality environment measurement sensor 130 are output to the monitor section 135, etc., and are monitored and recorded.

When the measurement of the water quality environment of the water WI in the aquaculture fish tank 200a is completed, the pump 110 is stopped, and the drain pipe 1
21 valve 121a is opened, and the water W3 remaining in the aquaculture cage 200a remaining in the sample chamber 120 is discharged. At the same time, cleaning water 141 is supplied from the cleaning section 140 to clean the water quality environment measurement sensor 130 and the sample chamber 120. The cleaning water 141 after cleaning is sent to the drain pipe 12 together with the water W2.
It is discharged from 1.

The water quality environment of the water Wl in the remaining aquaculture cages 200b to 200e is measured in the same manner as described above.

In addition, the measurement results 131 of the water quality environment measurement sensor 130 are
By outputting not only to the monitor unit 135 and the measurement result recording unit 136 but also to an automatic bait supply device, it is possible to supply bait in an amount and type depending on the water quality environment. For example, if the water temperature is too high, the cultured fish will eat less, so in such a case, the amount of feed supplied can be automatically suppressed.

Further, the cleaning water may be supplied from one suction port without providing a special cleaning section 140. moreover,
Instead of this washing water, a standard sample for calibrating the water quality environment measurement sensor 130 is supplied, and a standard sample for calibrating the water quality environment measurement sensor 130 is supplied.
0 may be automatically calibrated.

In the above-mentioned embodiment, a plurality of suction ports were provided in each of the aquaculture cages, but in another embodiment of the present invention, a plurality of suction ports were provided in one aquaculture cage. They may be installed at different depths to monitor the environment regarding water quality.

<Effects of the Invention> The water quality environment monitoring device according to the present invention sends water to a sample chamber using a pump pump only when it is necessary to measure the water quality environment of the water, and uses a water quality environment measurement sensor in the sample chamber to measure the water quality environment. Therefore, the life of the water quality environment measurement sensor can be extended. Furthermore, since the sample chamber is provided with an overflow pipe, the water quality environment measurement sensor always measures the water quality environment of fresh water, and measurement errors can be minimized. Furthermore, even when measuring water at a plurality of locations, it can be done with one water quality environment measuring sensor, which is more advantageous than conventional systems in terms of cost and maintenance.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a water quality environment monitoring device according to an embodiment of the present invention. 10G... Water quality environment monitoring device, 110... Lifting pump, 120... Sample chamber,... Overflow pipe, 130... Water quality environment measurement sensor.

Claims (4)

[Claims] (1) A water quality environment monitoring device characterized by comprising a lift pump that sucks up sample water, and a water quality environment measurement sensor that measures the water quality environment of the water sucked up by the lift pump. (2) The water quality environment monitoring device according to claim 1, wherein the water pump is connected to a plurality of suction ports that can be opened and closed by valves. (3) The water quality environment monitoring device according to claims 1 and 2, wherein the water quality environment measurement sensor is installed in a sample chamber, and an overflow pipe for discharging overflowing water is connected to the sample chamber. (4) Water quality environment monitoring according to claim 1, 2 or 3, characterized in that the water quality environment measurement sensor that has completed the water quality environment is washed with washing water or automatically calibrated using a standard sample for calibration. Device.