JP2015059419A - Well water utilization system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a well water utilization system which prevents clogging of a well hole and is excellent in filtration performance for improving the efficiency of cooling and heating.SOLUTION: A well water utilization cooling and heating system includes: a water pumping device in which a casing pipe 1, a water pumping pipe 6, and an intake unit 2 are arranged in a drilled hole; a lift pump; a pumping-up changeover electromagnetic valve for a well hole 1 and a well hole 2; a reduction changeover electromagnetic valve; a heat exchanger; and roof sprinkling means. The well holes are configured in an arrangement in which the water pumping pipe and the intake unit capable of splitting wellhole clogging which is a problem of well water utilization can be freely pushed in and pulled up, and in which the water pumping pipe and the intake unit can be simply pulled up, cleaned, and replaced when clogging occurs in the intake unit.

Description

The present invention relates to a cooling / heating device using well water pumped up by a pumping device that can be pushed in or pulled up freely, and a system that performs cooling and heating by replenishing a water storage tank with well water and performing watering on the roof. is there.

In the situation where electricity prices have risen due to soaring crude oil prices and cooling efficiency has deteriorated due to the effects of global warming, the need for inexpensive and energy efficient air conditioning systems is increasing.
Japan has abundant water resources, but the use of well water is not progressing because well clogging prevention technology has not been established. When a well is used for many years, clogging occurs due to the accumulation of fine soil particles and scale on the screen. When clogging occurs in a conventional well, since cleaning and replacement cannot be performed easily, there is no other way but to request well maintenance from a specialized contractor to eliminate clogging of the well, and the maintenance cost is high.

It is a well-known fact that well water can be an effective energy auxiliary means depending on its energy efficiency and use. There is an increasing need for energy efficient systems using well water in factories, warehouses, markets, horticultural houses, barns, etc., where air conditioning efficiency is poor.
Patent document 1 is mentioned as a clogging prevention technique of a well.
When clogging occurs by monitoring the well water level with a liquid level sensor, well clogging is prevented by switching back and forth between pumping and reduction in well 1 and well 2 to prevent clogging of the well and heat exchange with heat from well water. Device. However, there are a problem that the state of the screen part after backwashing cannot be accurately grasped by direct visual observation and a problem that the system becomes complicated and expensive.

At present, there is no well water cooling system that solves the problem of clogging of wells and the problem that cannot be easily cleaned and replaced with a simple system configuration.

Patent publication number 2011-021804

The present invention solves such a problem, and in response to the need for an inexpensive and energy efficient cooling / heating means that is expected to increase in the future, a pump pipe and a pumping pipe and a water intake unit that can be divided into a pumping pump and a borehole are not provided. The purpose of the present invention is to provide a well-utilized well water utilization system that is inexpensive and energy efficient with a pumping device that can be pushed up and pulled up freely in the aquifer.

Claim 1 of the present invention is a pumping device which is arranged to be able to freely push up and pull up a pumping pump and a separable pumping pipe and a water intake unit into an unpressured aquifer. It is a well water utilization system characterized in that it can be easily cleaned and replaced by pulling up a pumping pipe and a water intake unit that can be divided when clogging occurs.

The present invention relates to a pumping device and a pumping device which is arranged so that a casing pipe, a separable pumping pipe and a water intake unit can be freely pushed into and lifted from an unconfined aquifer, and a light-weight pumping pipe is divided. Well water utilization system characterized in that it has a water intake unit filled with porous polymer filter material with excellent filtration performance that can be used semipermanently between two cylinders connected in a possible manner It is.

The second aspect of the present invention is that a cylindrical structure having a large number of small holes and different outer diameters is made into a double structure, and is filled with a porous polymer filter material that is lightweight and semipermanently used and has excellent filtration performance. This is a water intake unit.

According to the present invention, the weight reduction is achieved, and when the intake unit is clogged, the pumping basin and the intake unit can be freely lifted and cleaned and replaced. The water intake unit is characterized in that a filtration layer filled with a porous polymer filter material having excellent filtration performance is provided on the outer periphery of the water intake unit.

In the conventional well, the casing pipe and the screen pipe have the same outer diameter, but in the present invention, the intake unit can be connected to the pumping basin so that the outer diameter of the intake unit can be increased and the intake area can be increased. It is. In order to perform intake, pumping, and reduction at a gentle flow rate that does not destroy the aquifer structure, the intake area of the intake unit is increased and water is taken gently and pumped and reduced to prevent clogging of wells. Is going. The intake unit is characterized in that a large filtration layer is provided on the outer periphery of the intake unit in order to gently intake, pump and reduce water, and a large reservoir layer is provided in the inside.

Claim 3 of the present invention is a pumping device arranged such that a casing pipe, a separable pumping pipe and a water intake unit can be freely pushed into the unconfined aquifer and pulled up into a pumping pump and an excavation hole for seismic piles, The well water utilization system is characterized in that it can be easily cleaned and replaced by pulling up a water pump pipe and a water intake unit that can be divided when the water intake unit is clogged.

The present invention is a pumping device arranged to be able to freely push and lift a casing pipe, a separable pumping pipe and a water intake unit into an unconfined aquifer into a pumping pump and a seismic pile excavation hole. The well water utilization system is characterized in that the construction period can be shortened and the construction cost can be greatly reduced by using the excavated holes for seismic piles.

Claim 4 of the present invention is a water intake unit characterized in that a large number of cylinders with different outer diameters with small holes are made into a double structure and filled with a polymer filter material therebetween,
It is a water intake unit characterized by having a shape that allows the water intake unit to be pushed in and pulled up freely.

The present invention is a water intake unit characterized in that the tip of the water intake unit has a triangular pyramid shape, the connection shape between the pumping trough and the water intake unit is a tapered shape, and can be pushed and pulled up freely.

The fifth aspect of the present invention is the well 1, the well 2, the pump, the well 1 pumping switching solenoid valve, the reduction switching solenoid valve, the well 2 pumping switching solenoid valve, the reduction switching solenoid valve, and the well in which the pumping device of claim 1 is disposed. This is a well water utilization system characterized in that air conditioning equipment using water as a heat exchange medium and well water are supplied to a water storage tank and roof watering is performed.

In the present invention, the backwashing cleaning operation is performed by periodically switching between pumping and reduction by the well 1 pumping switching solenoid valve, the reduction switching solenoid valve, the well 2 pumping switching solenoid valve and the reduction switching solenoid valve, and the intake unit is clogged. This is a well water utilization system characterized by a long maintenance cycle.

Claim 6 of the present invention is a water storage tank using one well, a submersible pump installed in the tank, a liquid level sensor, a well water supply solenoid valve, a watering nozzle, a flow meter for measuring the flow rate of drainage, and an initial stage. A roof watering system characterized by having a drainage discharge unit, a filter for drainage filtration, a temperature sensor for measuring indoor temperature, and a control panel.

The present invention is a system that uses well water and does not require a water supply and has excellent running costs. It is a roof sprinkling system characterized in that roof watering is performed at the roof sprinkling time and roof sprinkling timing according to weather conditions by measuring the control panel and roof sprinkling situation with a flow meter and measuring the indoor temperature with a temperature sensor.

The problems with the well water utilization system are that clogging prevention technology effective for clogging of wells has not been established, and that maintenance costs are high.
In response to the need for an inexpensive and energy efficient cooling and heating system that is expected to increase in the future, the well water utilization system of the present invention is equipped with a pumping pump, a casing pipe, a separable pumping pipe, and a water intake unit in the borehole. A pumping device that can be pushed into the layer freely and pulled up, and when the intake unit is clogged, it can be easily cleaned and replaced by pulling up the separable pumping pipe and intake unit so that wells can be clogged. Well water use system that can prevent and reduce well maintenance costs has been realized.

FIG. 1 is a detailed view of a well.
The connecting portion 4 of the casing pipe 1 and the pumping pipe 6, the support metal 5 of the pumping pipe 6 and the pumping pipe 6 are arranged in the excavation hole, and the water intake unit 2 is attached to the tip thereof. The outer filtration layer 2 </ b> A, the internal water storage tank 2 </ b> B, the tip portion 2 </ b> C of the conical water intake unit 2, the tapered connection portion 2 </ b> D of the water intake unit 2 and the pumping pipe 6, and the earth and sand backfill portion 3 of the casing tube 1.

The intake unit 2 of the present invention can have a large intake area and a large internal reservoir by making the outer diameter larger than that of the pumping trough 6, and with a gentle flow velocity by contacting the aquifer with a large area. The structure is such that clogging is unlikely to occur in the outer filtration layer 2A by taking water, not causing a change in the structure of the aquifer, and suppressing the movement of fine soil particles in the aquifer.

FIG. 7 is a conventional well structure diagram.
The sand 53 and the screen 52 filled in the outer periphery of the screen portion constitute a filtration layer to filter fine soil particles, but in the present invention, a cylinder having a large number of small holes and different outer diameters is made into a double structure, In the meantime, it is set as the water intake unit 2 which comprised the outer periphery filtration layer 2A by filling the porous polymer filter material which was lightweight and excellent in filtration performance.

FIG. 2 is a well diagram of the present invention.
It is a well that pumps up with a pumping device in which a rigid PVC pipe for water supply or an equivalent casing pipe 1, a pumping pipe 6 and a water intake unit 2 are arranged in a drilling hole. The connection part 4 of the pumping pipe 6, the support metal 5 of the pumping pipe 6, and the casing pipe backfill earth and sand part 3.

In the figure, A is a well structure diagram in a shallow unconfined aquifer. Since the space between the upper part of the unconfined aquifer and the lower part of the excavation hole is short, it is possible to easily push the intake unit 2 up to the unconfined aquifer, and it is possible to construct a well with a short construction period and a low price. It is possible to easily push the intake unit 2 up to the unconfined aquifer if a temporary moat is performed even in a hard stratum region.

In the figure, B is a well structure diagram in an unconfined aquifer with a slightly deeper depth. When the space between the upper part of the unconfined aquifer and the lower part of the excavation hole is long, it is possible to construct a well with a short construction period and a low price by pushing the intake unit 2 to the unconfined aquifer together with a temporary moat. . It is possible to easily push the intake unit 2 up to the unconfined aquifer if a temporary moat is performed even in a hard stratum region.

FIG. 3 is an overall view of the well water utilization system.
Well 1 casing pipe 1, well 1 intake unit 2, well 1 earth and sand backfill part 3, pumping pipe connection part 4 of pumping pit 6, pumping pipe support part 5 of pumping pit 6, well 1 pumping pipe 6, pumping pump 7, Air conditioning equipment 8, well 1 pumping switching solenoid valve 9A, well 1 reduction switching solenoid 9B valve, well 2 pumping switching solenoid valve 10A, well 2 reduction switching solenoid valve 10B, well 2 casing pipe 11, well 2 intake unit 12, well 2 Sediment backfill portion 13, pumping pipe connection part 14 of pumping tank 16, pumping pipe support part 15 of pumping tank 16, well 2 pumping pipe 16, water storage tank 21, control panel 22, submersible pump 23, liquid level sensor 24, disk The filter 25, the flow meter 26, the electromagnetic valve 27, the indoor temperature sensor 28, the initial drainage discharge unit 29, and the watering nozzle 32.

FIG. 4 is an operation diagram of a well water utilization system.
When the pumping pump 7 is turned on, the well 1 pumping switching solenoid valve 9A and the well 2 reduction switching solenoid valve 10B are turned on, and the well water is pumped from the well 1 by the pumping pump 7, and is returned to the well 2 through the air conditioning equipment 8.

FIG. 5 is a well water utilization system operation 2 diagram.
When the pumping pump 7 is turned ON, the well 2 pumping switching solenoid valve 10A and the well 1 reduction switching solenoid valve 9B are turned ON, and the well water is pumped from the well 2 by the pumping pump 7, and is returned to the well 1 through the air conditioning equipment 8.

The outer filtration layer 2A of the intake unit 2 of the well 1 and the outer filtration layer of the intake unit 12 of the well 2 by periodically switching the pumping well and the reduction well with the pumping switching solenoid valve and the reduction switching solenoid valve of the well 1 and the well 2 The fine soil particles and scale adhering to 12A are backwashed to prevent clogging of the wells. Maintenance costs can be reduced because of the long maintenance cycle.

In a multiple well use system, it is common to use a plurality of pumps for switching between a pumping well and a reduction well. However, in the air conditioning system of the present invention, one pump 7 and pumping switching solenoid valves 9A, 10A are used. Further, the pumping well and the reduction well are switched by the reduction switching electromagnetic valves 9B and 10B, and the fine soil particles and the scale attached to the water intake unit outer perimeter filtration layers 2 and 12 are washed back.

FIG. 6 is a well water utilization system diagram using a seismic pile excavation hole.
A lot of earthquake-resistant piles are built for foundation work in Japanese buildings with many earthquakes. It is a well water utilization system figure using the excavation hole.

The depth of excavation holes for seismic piles is usually around 5m. By constructing a well using this earthquake-resistant pile excavation hole, the construction period of the well excavation work can be shortened and the excavation work cost can be greatly reduced.

FIG. 7 is a conventional well diagram.
A conventional well has a structure in which a casing pipe 50 is buried by using a well excavation method, and a well 52 taken up by connecting a screen portion 52 to the tip thereof is pumped by an underwater pump 51. The upper portion of the casing tube is filled with backfilling earth and sand 54, and the filter sand 53 is filled around the screen portion 50.

This conventional well structure is a structure that cannot be easily cleaned and replaced, so when well clogging occurs, there is no way to eliminate clogging of wells by requesting well maintenance from a specialist. The well maintenance fee is expensive.

The present invention is a pumping device in which a well clogging, which is a problem in the use of well water, is arranged in a drilling hole with a casing pipe, a separable pumping pipe, and a water intake unit. It is a well water utilization system that can be pulled up for cleaning and replacement. Inexpensive and energy-efficient well water utilization systems can significantly reduce electricity costs, and may be introduced in factories, warehouses, markets, horticultural houses, storage buildings, etc., where air conditioning efficiency is poor. In addition, it is possible to use well water for snow melting equipment with high needs in snowfall areas or as an emergency water well.

Detailed drawing of pumping equipment Well structure diagram of the present invention Overall view of well water utilization system Well water utilization system operation 1 Well water utilization system operation 2 figure Well water utilization system diagram for excavation holes for earthquake resistant piles Conventional well structure

1, well 1 casing tube 2, well 1 pumping device intake unit 2A, intake unit outer perimeter filtration layer 2B, intake unit internal reservoir 2C, intake unit conical tip 2D, intake unit and pumped pipe tapered connection part 3, well 1 earth and sand backfilling part 4, pumping device 1 piping joint 5, pumping device 1 pumping pipe support bracket 6, pumping device 1 pumping pipe 7, pumping pump 8, heat exchange device 9A, well 1 pumping switching solenoid valve 9B, well 2 pumping Switching solenoid valve 10A, well 1 reduction switching solenoid valve 10B, well 2 reduction switching solenoid valve 11, well 2 casing pipe 12, well 2 pumping device intake unit 13, well 2 sediment refilling portion 14, pumping device 2 piping joint 15, Pumping device 2 Pumping pipe support fitting 16, pumping device 2 pumping pipe 21, water storage tank 22, control panel 23, submersible pump 24, liquid level sensor 25, disk filter 26, flow meter 27, solenoid valve 28, temperature sensor 29 in the building, initial drainage unit 30, drainage tank 31, drainage solenoid valve 32, watering nozzle 50, conventional well casing pipe 51, conventional well submersible pump 52 Conventional well screen 53, Conventional well-filled gravel layer 54, Conventional well-sediment backfill layer

Claims (6)

A drilling hole excavated in the ground; a casing pipe insertable into the drilling hole; a pumping pipe insertable into the casing pipe; a water intake unit attached to a tip portion of the pumping pipe; a screen and a well provided in the water intake unit; A well water utilization system comprising a pump for pumping water, wherein the pumping pipe is separable and the water intake unit can be pushed into an unconfined aquifer freely and pulled up. Well water utilization system. The well water utilization system according to claim 1,
The water intake system is characterized in that the water intake unit screen has a double structure of a plurality of cylinders with different outer diameters having small holes, and a porous polymer filter material filled between them. The well water utilization system according to claim 1,
The pumping pump and the excavation hole are arranged so that a casing pipe, a separable pumping pipe and a water intake unit can be freely pushed or pulled up into the unconfined aquifer, and the excavation hole is a seismic pile excavation hole Well water utilization system. The water intake unit according to claim 2,
Well water utilization system characterized by a shape that can be freely pushed into or raised from an unconfined aquifer. The well water utilization system according to claim 1,
Well water use characterized by having a pumping device arranged in well 1 and well 2, pumping solenoid valve for well 1 and well 2, solenoid valve for reduction switching, air conditioning equipment using well water as heat exchange medium, and control panel system. The well water utilization system according to claim 1,
A water tank using one well, a submersible pump installed in the tank, a liquid level sensor, a solenoid valve for well water supply, a water spray nozzle installed on the roof, a flow meter for measuring the flow rate of drainage, and an initial drainage discharge unit A roof watering system characterized by having a filter for drainage filtration, a temperature sensor for measuring indoor temperature, and a control panel.

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