JP4537962B2 - Portable wastewater inspection system - Google Patents

Description

  The present invention relates to a portable wastewater inspection apparatus for tap water by draining a water distribution pipe network of waterworks.

Tap water is sterilized with chlorine by adding sodium hypochlorite at the water purification plant. In each water distribution pipe network from the water purification plant to each customer, if tap water stays without being used, chlorine escapes from the staying part of each water tank etc. in the water distribution pipe network. The concentration decreases.

For this reason, in order to secure the necessary residual chlorine concentration, the tap water is discarded at the monitoring point of the predetermined water distribution pipe network or at the end of the pipe of the water distribution pipe network where the tap water is accumulated (hereinafter, The water is made to flow and tap water with a high residual chlorine concentration is circulated to ensure water quality.

There are two types of wastewater: regular wastewater that is always drained with a predetermined amount of wastewater, and regular wastewater that is regularly drained. In either case, it satisfies the water quality standards stipulated by the Water Supply Law. A water quality test is conducted every day.

In this water quality standard, for example, it is stipulated that the free residual chlorine is maintained at 0.1 mg / L or more, and if this standard is not satisfied in the daily inspection, until this value is exceeded. Continue to dispose of water so that it is above the water quality standard.

For example, as shown to Fig.2 (a), the water distribution pipe network 1 is equipped with the branch contact part 3i of many piping from the water purification plant 2 to the terminal of each consumer.

For example, the branch contact part 3 includes a drain pipe 1a and a main pipe part 1b constituting a part of the water distribution pipe network 1, and includes a manual valve 3a1 and a manual valve 3a2, and the manual valve 3a1 is opened. Thus, the tap water always flows, and the manual valve 3a2 is closed in the drainage pipe section 1a so that the tap water is retained.

If the amount of tap water flowing through the main piping part 1b side of the branch contact part 3 is small, the free residual chlorine concentration of the tap water supplied from the main ash trunk part b will also decrease, ensuring water quality standards. An unusable state occurs.

In such a branch contact portion 3, the manual valve 3a2 is operated to open the valve, and the tap water of the staying water distribution pipe portion 1a is periodically drained. Analyze
The water quality standard is inspected.

In order to manage such water quality standards, there is a dechlorinated water supply device that selectively manages chlorine components in a water storage tank such as a water purification plant (for example, see Patent Document 1).

In the dechlorination water supply device provided with the water pump provided in the middle of the water pipe extending from the water tank, the dechlorination device provided in the middle of the water pipe and the dechlorination device bypassed in the middle of the water pipe A dechlorination device bypass pipe, a dechlorination device bypass on / off valve provided on the dechlorination device bypass pipe, a drainage on / off valve connected to the terminal side of the water supply pipe, and a water supply pump. A power storage device for supplying electric power to the drive electric motor, and detecting that the drain valve is closed,
Selectable supply of dechlorinated water or chlorine-containing water that opens the drain valve for a certain period of time when the specified time is reached by accumulating the non-pumping time of tap water supplied through the water pipe. I can do it.
JP 2000-334469 A (first page, FIG. 1)

Depending on the dechlorinated water supply device shown in Patent Document 1, there is a problem of reducing labor related to the management and maintenance of facilities by providing a dechlorinated water supply facility individually for each stagnant water piping section that requires drainage. However, there is a problem in that it is not possible to directly measure all the water quality of the staying tap water piping network that occurs in any place and to perform reliable water quality management.

Conventionally, water quality inspections such as residual chlorine concentration have been conducted at all monitoring points (
In the drainage piping section), wastewater is sampled and regularly inspected.

However, there are many places where water needs to be drained, for example, in a newly constructed building, a facility that is not in use, etc., in water supply pipe networks that are not in use, etc. Therefore, there is a problem that requires a lot of labor for the water quality inspection work.

Conventionally, the amount of water discharged from the water distribution pipe section 1a for this water quality inspection is time management for water draining for a certain period of time, so unnecessary water discharge cannot be avoided, and the water supply corresponding to this time There is also a problem that wasteful drainage of water occurs.

The present invention was made in order to solve the above-mentioned problem, and shortens the water quality inspection and drainage time in the drainage distribution pipe part of the water distribution pipe network to eliminate a wasteful amount of wastewater and to make a large number of water distribution pipes. An object of the present invention is to provide a portable wastewater inspection apparatus capable of efficiently performing a wastewater operation on a net in a short time.

In order to achieve the above-mentioned purpose, a water quality inspection device for tap water to be disposed of at a location where stagnant water is generated in a water distribution pipe network is connected to the drainage piping portion. A tap water pipe for circulating tap water from the drain pipe section, a water quality sensor for inspecting the quality of the tap water circulated from the water intake pipe section, and the tap water from the output of the water quality sensor A tap water control unit that determines whether the water quality is within a reference range, a recording unit that records the output of the water quality sensor, and a water quality determination output of the water control unit that opens and closes the valve to open the tap water. An electromagnetic valve that circulates or shuts off the flow, a water quality sensor, the recording unit, and a power source unit that has a power storage function for supplying the electromagnetic valve, and automatically controls the quality of tap water flowing from the drainage pipe unit It is characterized by inspecting.

In order to achieve the above object, the water quality sensor of the portable wastewater inspection apparatus of the present invention includes a residual chlorine meter capable of measuring at least a free residual salt concentration.

According to the present invention, the quality of tap water circulated from the water intake pipe section and the water intake pipe section connectable to the waste water distribution pipe section where the tap water in the water distribution pipe network is generated with one touch is automatically set. Water quality sensor to detect automatically, a waste water control unit for determining whether the output from the water quality sensor is within a predetermined water quality standard, and the flow of tap water circulated at the output of the water waste control unit And a recording unit for recording the output of the water quality sensor, so that the water quality of the tap water can be automatically inspected in the drainage pipe unit, and Since the water draining is automatically stopped within the predetermined water quality standard, it is possible to inspect the water quality at the water draining pipe portion which can reduce the wasteful water draining amount which is not troublesome.

In addition, since the water quality sensor, the recording unit, and the power source unit having a power storage function for supplying to the electromagnetic valve are provided, charging from a car battery is also possible. It is possible to provide a portable water quality inspection device capable of carrying out inspection of tap water quality at a location in a short time.

Hereinafter, an embodiment of the present invention will be described with reference to FIG. FIG. 1 shows a configuration of a portable water quality inspection apparatus according to the present invention.

The same parts as those shown in FIG. The portable water quality inspection device 5 has a water quality check at a location where tap water stays predicted in advance at a branch contact point 3 _i of each pipe of the water distribution pipe network 1 shown in FIG. 2 or a pipe terminal (not shown). Inspection is performed by circulating tap water from the inspection location, that is, the discarded water distribution pipe section 1a.

And the portable water quality test | inspection apparatus 5 can be easily connected with the waste water piping part 1a, the water intake piping part 5a for distribute | circulating a tap water by flexible piping, and the water discharge port 5 mentioned later from the water intake piping part 5a
The water quality of the tap water which was made to flow from the solenoid valve 5b which opens and closes the piping path to c, the water discharge port 5c for draining from the outlet of the solenoid valve 5 to the predetermined drainage, and the water branched off from the piping And a residual chlorine meter 5d.

Further, the residual concentration at the location where the residual chlorine meter 5d is provided so as to satisfy the water quality standard required at each water supply point at the end of the water distribution pipe network 1 and the free residual chlorine concentration of 0.1 mg / L or more. A waste water control unit 5e for determining whether or not the output of the total 5d is equal to or higher than a preset residual chlorine concentration, a recording unit 5f for recording the output of the residual chlorine meter 5d, and this portable water quality It comprises a power supply unit 5g having a power storage function to be supplied to each unit in the inspection apparatus 5.

Next, the configuration of each unit will be described. The water intake piping part 5a is comprised with a flexible tube provided with the joint part connectable with the waste water piping part 1a by one touch, for example.

Moreover, the connection part of the intake pipe part 5a with the waste water distribution pipe part 1a is set as the structure which can attach the joint part which can be changed into a different diameter so that it may match the various pipe diameters of the waste water pipe part 1a.

By providing such a water intake piping part 5a, tap water can be easily circulated from various drainage points. If this joint portion is provided immediately before the manual valve 3a2, opening / closing scanning of the manual valve 3a2 becomes unnecessary.

Next, the solenoid valve 5b that opens and closes the piping path that takes water from the water intake piping section 5a and distributes the tap water that reaches the water outlet 5c may be any one that matches the diameter of the piping path.

In addition, the residual chlorine meter 5d that measures the concentration of free residual chlorine in tap water taken from this pipe is taken with a measurement range of 0 to 2.0 mg / L and a measurement resolution of 0.1 mg / L. For example, a small, low power consumption residual chlorine meter 5d based on the galvanic cell method is used.

The waste water control unit 5e determines whether or not the output of the residual chlorine meter 5d is 0.1 mg / L or more of the water quality standard, and when it is 0.1 mg / L or more, the control signal for closing the solenoid valve 5b Is output to the electromagnetic valve 5b.

In addition, the power supply unit 5g having a power storage function is configured to be as small and light as possible from the amount of power consumed and the time of use so that the portable water quality inspection device 5 can be easily mounted and moved by one person. .

The power supply unit 5g can also be configured to be able to be charged on the vehicle and used in parallel with the battery of the vehicle to be used.

  Next, operation | movement of the portable water quality inspection apparatus 5 comprised in this way is demonstrated.

Normally, the portable water quality inspection device 5 is mounted on a vehicle and transported to a place where a predetermined drainage pipe section 1a exists.

And the water intake piping part 5a which has twistability is attached to the connection part of the waste water piping part 1a, the electromagnetic valve 5b is opened, the taken tap water is discharged from the water discharge port 5c, and a tap water is distribute | circulated.

And the residual chlorine concentration of this distribute | circulated tap water is measured with the residual chlorine meter 5d. At this time,
When the output of the residual chlorine meter 5d is 0.1 mg / L, a control signal for closing the electromagnetic valve 5b is output from the water discharge control unit 5e, and the valve of the electromagnetic valve 5b is closed and water is discharged from the piping. Cancel.

And the water intake piping part 5a is removed from the connection part of the waste water piping part 1a, and a water quality test | inspection and a water discarding operation | work are complete | finished.

As described above, according to the present invention, it is possible to automatically perform all of the water quality inspection and the drainage control except for the connection / removal to / from the drainage pipe section 1a.

The present invention is not limited to the above-described embodiment, and the water quality sensor for determining the water quality standard is effective for the determination of the water quality standard such as a water temperature meter, a PH meter, and a turbidity meter in addition to the residual chlorine meter 5d. It may be composed of a composite sensor composed of various water quality sensors, and can be implemented with various modifications within a portable range without departing from the gist of the present invention.

1 is a configuration diagram of a portable wastewater inspection apparatus according to the present invention. Explanatory drawing of the conventional waste water test | inspection.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water supply pipe network 1a Waste water pipe part 1b Main pipe part 2 Water purification plant 3 _i branch contact part 3a Manual valve 5 Portable waste water inspection apparatus 5a Intake pipe part 5b Solenoid valve 5c Water outlet 5d Residual chlorine meter 5e Waste water meter Control unit 5f Recording unit 5g Power supply unit

Claims (2)

A water quality inspection device for tap water to be disposed and disposed in a drain pipe section of a place where stagnant water is generated in a water distribution pipe network,
An intake piping section that connects to the waste water piping section and distributes tap water from the waste water piping section,
A water quality sensor for inspecting the quality of the tap water circulated from the intake pipe section;
A wastewater control unit that determines whether or not the tap water is within a predetermined water quality reference range from the output of the water quality sensor,
A recording unit for recording the output of the water quality sensor;
A solenoid valve that circulates or blocks the flow of tap water at the water quality judgment output of the wastewater control unit;
The water quality sensor, the recording unit, and a power supply unit having a power storage function to supply to the electromagnetic valve,
A portable wastewater inspection device that automatically inspects the quality of tap water flowing in from a wastewater piping section. The portable wastewater inspection apparatus according to claim 1, wherein the water quality sensor includes a residual chlorine meter capable of measuring at least a free residual chlorine concentration.

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