JP2000054779A - Method and apparatus for pumping hot spring and underground water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable hot spring or underground water to be pumped up to the ground readily at low cost by insetting a pipe in a well for a gush and storage of hot spring and underground water for introducing hot spring or underground water to the ground, and making use of the difference between the inner and outer air-pressure of an introduction pipe caused by forcibly pressing down the outside hydrostatic level with air-pressure. SOLUTION: An air-pressure control tank is connected to the upper part of a well opening flange 2, and an air blow pipe 15 from an air-pressure compressor 9 is joined to the air-pressure control tank 6, then, a pumping pipe 3 is inserted so that the upper end opening is connected to the outer wall of a water storage tank 10 and the lower end opening is situated at a predetermined place within the well underground passing through the air-pressure control tank 6 and well opening flange 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for pumping hot springs and groundwater flowing from an underground stratum by a difference in air pressure.

[0003]

2. Description of the Related Art When underground water is excavated and groundwater or hot springs spring out of the stratum and are stored in a wellbore, if the spring pressure and the stored volume pressure are balanced in the wellbore, the position of the well is maintained. The water level in the borehole is reached. If this balanced position does not exist in the drill well hole, it will spout spontaneously, but in the case of most drill wells, a balanced position exists in the drill well hole. When there is a still water level in the equilibrium position or in the borehole, the groundwater or hot spring cannot be pumped to the ground. Therefore, in order to break this equilibrium state, a submersible pump is inserted into the drilling well hole to pump water, or a water pump and an air inlet pipe are inserted into the drilling well hole, and drilling is performed from the ground via the air inlet pipe. Compressed air is sent to the bottom of the well hole, and the air is mixed with groundwater or hot spring water to reduce the specific gravity and pump water.

[0004]

However, since each of these methods uses a high horsepower motor, the power consumption increases. In addition, in each case, a large amount of cost is required for maintenance and management, which is a major problem in using groundwater or hot springs. In addition, the pumping power is unnecessarily high, which leads to the destruction of underground resources, such as the depletion of groundwater and hot springs. As a solution to such a problem, the present invention provides a hot spring in which pumping can be performed with lower horsepower than conventional pumping methods, which can reduce power consumption, facilitate maintenance management, and suppress the destruction of underground resources. It is an object of the present invention to provide a method and apparatus for pumping groundwater by air pressure.

[0005]

In order to achieve the above object, a method for pumping a hot spring or groundwater according to the present invention is directed to a method of pumping a pumping pipe to a required position in a well bore where a hot spring or groundwater springs and is stored. Inserting, sending compressed air around the outside of the pumping tube in the drilled well hole that has reached the hydrostatic level,
By lowering the water level in the drilling pit deeper than the still water level, and utilizing the balance between the spring pressure of the hot spring or groundwater and the storage volume pressure in the well bore, increasing the air pressure around the pumping pipe, It is characterized in that a hot spring and groundwater are pumped to the ground through the pumping pipe.

According to the present invention, there is provided a hot spring and groundwater pumping apparatus, wherein the casing of the drilling well, the flange at the mouth of the drilling well, the air pressure adjusting tank fixed on the flange at the mouth of the drilling well, and the air pressure adjusting tank are provided. The valve is inserted through a fixed lid or side portion of the upper part of the drilling well hole to a predetermined position in the drilling well hole, fixed at a through hole of the air pressure adjusting tank, and provided with a valve at the upper end capable of adjusting the pumping amount. Pumping pipes, on the ground, the air compressor that feeds compressed air to the air pressure adjusting tank, the water storage tank that stores pumped water, and hot springs or groundwater in the water storage tanks, which are intended to use hot springs or groundwater. It is characterized in that it has the load pump for feeding to a place and the control panel for supplying and controlling power to the air compressor and the load pump. It is set to.

[0007] The air pressure adjusting tank is provided with a removable flange type lid at the upper part, and a mating flange of the mouth flange of the drilling well is provided at the lower part so that it can be fixed with the mouth flange of the drilling well with bolts and nuts. A pressure air intake port for taking compressed air into the air adjustment tank, an instrument for displaying the air pressure inside the air pressure adjustment tank, and a pressure switch for starting and stopping the air compressor on the ground Is provided.

The pumping pipe has a double structure, in which the inner pipe is an inner pipe, the outer pipe is an outer pipe, an air layer is provided between the inner pipe and the outer pipe, and the air layer is confined. In addition, it is possible to reduce the weight of the pumping tube by buoyancy and to keep the hot spring or groundwater flowing in the pumping tube warm.

[0009] The water level monitoring sensor is inserted into the drilled well hole at a predetermined position to monitor the position of the still water level.

[0010] In order to increase the amount of pumped water, the water pipe may be inserted from the ground to the bottom of the borehole.
At this time, the water pipe may be arranged in parallel with the water pipe,
It is also possible to pass through the inside of the pumping pipe, insert the pumping pipe inner pipe and the water supply pipe inside the pumping pipe outer pipe, fix both pipes so as to keep a fixed interval, and place between the outer pipe and both pipes. Alternatively, a structure in which an air layer is provided may be used.

The water pipe is provided with a water outlet at a lower end thereof, and a valve is provided at the water outlet or at a predetermined position inside the water pipe to prevent hot spring or groundwater from flowing back into the water pipe. The water outlet is provided in opposition to the hound's-tooth, a bottom plate is provided at the lowermost end, and lands at the bottom of the drilling well hole. Also,
A valve capable of adjusting the amount of make-up water is provided on the upper end above the ground.

When the pumping pipe and the water pipe are arranged in parallel, they are bound at a predetermined location in the drilling well hole, and the water pipe is provided with a vibration isolating ring near the outlet.

[0013] The removable flange-type lid and side portions of the upper part of the air conditioning tank correspond to the weight of each penetrating pipe, and fix the outer wall of each penetrating pipe. Or, it is fixed by each penetrating pipe and a flange.

On the ground, the air compressor has an air inlet connected to a compressed air intake of the air pressure adjusting tank by an air supply tube or a pressure-resistant tube. A valve is provided to prevent hot springs or groundwater from flowing back into this air or pressure tube. Further, it starts and stops in response to electric signals from the pressure switch and the water level monitoring sensor attached to the air regulating tank. In addition, a cushion tank may be provided between the air compressor and the air pressure adjustment tank to supply more stable compressed air to the air pressure adjustment tank.

On the ground, the water storage tank is connected to the pumping pipe by providing a valve for adjusting the pumping amount and a valve for preventing backflow on the way on the ground, and stores the pumping inside. The upper lid is removable, and the lid is provided with a hole to which an electrode rod for monitoring the water level inside the water storage tank and starting and stopping the load pump can be attached.

In order to increase the amount of pumped water, the water pipe is inserted into the drilling well hole, and a water flow control valve and a valve for preventing backflow are provided on the way above the water pipe with the water pump. Connect and send make-up water into the hole via the water pipe.

[0017]

The method of pumping hot springs and groundwater by air pressure according to the present invention is characterized in that in a drilling well in which hot springs or groundwater springs and is stored, the pumping tube is inserted into the hole, and the outside of the pumping tube, the drilling well. By sending air from the air compressor on the ground to the inside of the casing and pushing down the static water level outside the pumping pipe and inside the casing of the drilling well with compressed air, the air pressure in the pumping pipe is reduced. Because it is open to the atmosphere, hot springs and groundwater are pumped up to the ground via the pumping pipe, and by pumping, the equilibrium between the spring pressure of the hot spring or groundwater and the storage volume pressure in the drilling well hole is broken, and the spring pressure is reduced. Excel. As a result, hot springs and groundwater can be pumped by the difference in air pressure.

The pumping pipe has a double structure inside, the inside of which is an inner pipe and the outside of which is an outer pipe, and an air layer is provided between the inner pipe and the outer pipe. The structure is such that the air layer is confined, the weight of the pumping tube is reduced by buoyancy, and the hot spring or groundwater in the pumping tube can be kept warm.

When the water supply pipe is inserted to the bottom of the drilling well hole, make-up water is supplied by the water supply pump from the upper end located above the ground, and from the water outlet provided at the lower end thereof in a staggered manner. Water can be discharged into the borehole, and the amount of water discharged can be increased. There is a water supply amount adjustment valve at the inlet of the makeup water at the upper end, which can adjust the amount of makeup water, to prevent the hot spring or groundwater from flowing back into the water pipe at the water outlet at the lower end or at a predetermined position in the water pipe. A backflow can be prevented by providing a blocking valve. A bottom plate is provided at the lowermost end, and is configured to land on the bottom of the drilling well hole, so that vibration of the water pipe at the time of water discharge is released by bending the water pipe, and in addition, the water discharge port is opposed to staggered. By doing so, the reaction of the propulsion force at the time of water discharge can be canceled and reduced. Further, by providing an anti-vibration ring near the water outlet, the vibration can be further reduced, and the durability of the water pipe can be lengthened.

[0020] The water supply pipe can be arranged in parallel with the pumping pipe in the drilling well hole, but can also be passed through the pumping pipe inner pipe. Further, a structure may be adopted in which the inner pipe of the pumping pipe and the water supply pipe are passed through the outer pipe of the pumping pipe, and both pipes are kept at a constant interval, and an air layer is provided therebetween. Thereby, even if the inside diameter of the casing of the drilling well is small, the pumping pipe and the water pipe can be passed through the hole.

When the pipes are inserted in parallel in the borehole, the pipes are bound at required places to prevent the pipes from being separated.

[0022]

FIG. 1 shows an embodiment of the apparatus according to the present invention. The drilling well with the casing 1 loaded therein, and the air pressure adjusting tank 6 is fixed to the drilling well mouth base flange 2 with the bolt 7 and the nut 8 by the mating flange 4 at the lower part of the air pressure adjusting tank.

The pumping pipe 3 is inserted through the detachable flange-type lid 5 of the air pressure adjusting tank 6 into the drilled well hole, and the outer wall of the pumping pipe is fixed to the opening.

The pumping pipe 3 has a double internal structure.
As shown, there is an inner tube 30 and an outer tube 31, an air layer 33 is created between the inner tube 30 and the outer tube 31, and the upper and lower ends of the outer tube are fixed to the flange 32, and the upper end of the inner tube 30, The lower end is made to penetrate the flange 32, the outer wall of the inner pipe 30 is fixed to the opening of the flange 32, the air layer 33 is sealed, and the pumping pipes 3 are connected to the flange 32 to connect the pipe to the drilling well premises casing 1. I do.

The air pressure adjusting tank 6 is provided with a compressed air intake 13, a pressure gauge 17 for displaying the internal pressure of the air pressure adjusting tank 6, and a pressure switch 16 for making the internal pressure an electric signal. .

On the ground, an air compressor 9 and an air supply tube or pressure-resistant tube 15 provide a valve 13 for adjusting the amount of air on the way.
And a backflow prevention valve 14 for preventing backflow of air is provided,
It is connected to the compressed air intake 13 of the air pressure adjusting tank 6.

A water storage tank 1 for storing pumped water on the ground
Numeral 0 is connected to the pumping pipe 3 by providing a pumping amount adjusting valve 12 and a valve 19 for preventing backflow in the middle. Also, it can be connected to the load pump 11 and sent to a place where hot spring or groundwater is to be used. Also, for drainage in the water storage tank 10,
A drain valve 22 is provided. A removable flange-type lid 18 is provided on the upper part, and the lid has a hole 21 for inserting an electrode rod for monitoring the water level inside the water storage tank 10.

A control panel 20 is provided which receives all electric signals in the apparatus and controls the operation in the apparatus.

FIG. 2 shows an embodiment in which a water pipe 23 is provided in the embodiment of FIG. The water supply pipe 23 has a structure in which a bottom plate 29 is provided at the lowermost end thereof, lands at the bottom of the well hole, and a water outlet 28 is provided on the side surface of the lower end in opposition to staggered as shown in FIG. The upper end of the water pipe 23 penetrates the removable lid 5 of the air pressure adjusting tank 6, and the outer wall of the water pipe 23 is fixed to the through hole. In the above-ground part, a valve 24 for adjusting the amount of makeup water
And a backflow prevention valve 25 is provided to prevent backflow of hot spring or groundwater in the water supply pipe 23, and is connected to a supply water supply pump 26.

At a place where the water pumping pipe 3 and the water pipe 23 are arranged in parallel in the well hole, they are bound by a binding band 27.

In the vicinity of the water outlet 28 of the water pipe 23, a vibration isolating ring 34 is provided at a required position. As shown in FIG. 5, the vibration-isolating ring 34 has a structure in which an inner ring 42 and an outer ring 40 are fixed with a support 41 so that the inner ring 42 and the outer ring 40 are fixed to each other by tightening with a bolt and nut 43. The diameter of the outer ring 40 is larger than that of the inner ring 42 and smaller than the inner diameter of the casing 1.

FIG. 6 shows an embodiment in which a water supply pipe 23 is provided in the embodiment of FIG. 1. However, unlike FIG. 2, the water supply pipe 23 passes through the inside of the inner pipe 30 of the pumping pipe 3 to form a well hole. Insert to the bottom. In the above-ground part, the water pipe 23 has a structure separated from the water pipe 3.

FIG. 7 is the same as the embodiment of FIG. 6 in that the water pipe 23 passes through the inside of the water pipe 3, but differs from FIG. 7 in that the water pipe 23 is different from the outer pipe 31 and the inner pipe of the water pipe 3. It passes between 30. That is, the outer tube 31 is shared,
The inner pipe 30 of the water pipe 3 and the water pipe 23 are arranged in parallel at a constant interval. The upper and lower ends of the shared outer pipe 31 are fixed to the flange 35, and the inner pipe 30 and the water supply pipe 23 of the pumping pipe 3 penetrate the flange 35, and the outer walls of both pipes are fixed to the through-holes. The air layer 33 is confined in the pipe 31, the two pipes, and the flange 35. By connecting the flange 35, piping is provided in the casing 1 in the borehole.

[0034]

As described above, according to the method and apparatus for pumping hot springs and groundwater by pneumatic pressure according to the present invention, a pumping tube is inserted into a well bore and a difference in air pressure between the outside and the inside of the pumping tube. By maintaining the balance between the pressure of the hot spring or groundwater and the volume pressure in the borehole, the water level in the pumping pipe can be raised to the ground level. The collapse and the higher the spring pressure enable stable pumping. Since high horsepower power is not used as in a conventional pumping device, operation and maintenance costs can be reduced.

In addition, by providing an air layer in the pumping pipe, the weight of the pumping pipe inserted into the drilling well hole can be reduced by buoyancy, and the liquid to be pumped can be kept warm.
Especially when pumping hot springs, the temperature of the hot water can be raised.

Further, if a water supply pipe is provided, water can be discharged to a predetermined position in the drilling well hole, and makeup water can be efficiently fed into the hole, so that the amount of pumped water can be increased by the amount of makeup water. .

Further, since pumping is not performed more than necessary by the power of high horsepower as in the prior art, it is possible to prevent depletion of hot springs and groundwater, thereby protecting underground resources.

[Brief description of the drawings]

FIG. 1 is a system diagram showing a first embodiment of the device of the present invention.

FIG. 2 is a system diagram showing a second embodiment of the device of the present invention.

FIG. 3 is a side view showing an embodiment of a water outlet provided in a water pipe according to the present invention.

FIG. 4 is a cross-sectional view showing one embodiment of the internal structure of the pumping pipe according to the present invention.

FIG. 5 is a view showing one embodiment of a vibration isolating ring attached to a water pipe according to the present invention.

FIG. 6 is a system diagram showing a third embodiment of the device of the present invention.

FIG. 7 is a cross-sectional view showing one embodiment in which a water pipe is inserted into a water pipe according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Well casing 2 Well mouth base flange 3 Pumping pipe 4 Air pressure adjustment tank lower end mating flange 5 Air pressure adjustment tank lid 6 Air pressure adjustment tank body 7 Bolt 8 Nut 9 Air compressor 10 Water storage tank body 11 Load pump 12 Pumping amount adjustment valve 13 Compressed air Volume control valve 14 Check valve 15 Air supply pipe or pressure-resistant tube 16 Pressure switch 17 Pressure gauge 18 Water tank lid 19 Check valve 20 Control panel 21 Electrode hole 22 Drain valve 23 Water pipe 24 Water flow control valve 25 Check valve Reference Signs List 26 Water pump 27 Binding band 28 Outlet 29 Bottom plate 30 Pumping tube inner tube 31 Pumping tube outer tube 32 Flange 33 Air layer 34 Anti-vibration ring 35 Flange 36 Overflow 37 Outer ring 38 Post 39 Inner ring 40 Bolt, nut

Claims (10)

[Claims] 1. A hot spring or groundwater guideway is installed in a hole of a drilling well in which a hot spring or groundwater springs and is stored. A hot spring or groundwater pumping method characterized by pumping a hot spring or groundwater to the ground through a taxiway by lowering the level of groundwater and creating a pressure difference between the inside and outside of the taxiway. 2. In a drilling well, a casing to be inserted into the well, a mouth flange provided at the mouth thereof, an air pressure adjusting tank provided above the mouth flange, the air pressure adjusting tank, a pipe or a pressure-resistant tube. An air compressor that sends air to the air pressure adjustment tank through the pipe or pressure-resistant tube, a water level monitoring sensor that measures the water level in the drilling well pit, and is inserted into the drilling well pit from the ground, A lower end is provided at a required position in the wellbore and serves as a hot water or groundwater inflow port, and a water storage tank installed on the ground and connected to an upper end of the hot water pipe. Features,
Hot spring, groundwater pumping equipment. 3. The pumping pipe has a double structure, an inner pipe inside and an outer pipe outside, and a structure in which an air layer is confined between the inner pipe and the outer pipe. The hot spring and groundwater pumping apparatus according to claim 2, characterized in that: 4. A water supply pipe which is inserted up to the bottom of the borehole in the excavation pit, has a water discharge port in a lower part thereof, and has a water supply pipe whose upper end is connected to a makeup water channel on the ground is arranged in parallel with the hot water supply pipe. The hot spring according to claim 2 or 3, characterized in that:
Groundwater pumping equipment. 5. The air pressure regulator has a cylindrical shape, and has a removable flange-type lid provided on an upper part thereof, and the weight of a hot water pipe inserted into the well or the well of a hot water pipe and a water pipe. It is fixed with a flange according to its own weight, and its lower part is open, and it has a structure provided with an intake port for compressed air from the air compressor, an instrument for displaying the internal air pressure, and a pressure switch. The lower end is provided with a companion flange of the mouth flange, and is fixedly installed on the mouth flange with a bolt and a nut, so that the flange of the lid can be passed through a hot water pipe or a hot water pipe and a water supply pipe. 5. The hot spring and groundwater pumping device according to claim 2, wherein the hole is fixed to the outer wall of each penetrating pipe. 6. The compressed air machine starts and stops according to a pressure switch provided in the air pressure adjusting tank and an electric signal of the water level monitoring sensor. 5. The hot spring and groundwater pumping device according to 5. 7. The water storage tank is covered with a warming material, and is provided with a lid having a removable hole for mounting an electrode rod for adjusting a water level in the water storage tank at an upper portion thereof, with a bolt and a nut. Fixed at the side, provided with a connection port capable of connecting the pumping pipe extending from the inside of the drilling well hole, provided with a connection port for connecting an overflow pipe for draining excess hot spring or groundwater in the water storage tank, A connection port for connecting to a load pump is provided, and a connection port for connecting a drainage pipe for draining hot spring or groundwater stored in the water storage tank is provided at a bottom plate or a lower portion of a side surface of the water storage tank. Item 2, 3, 4, 5 or 6 hot spring,
Groundwater pumping equipment. 8. The water pipe is inserted up to the bottom of the borehole, the bottom plate is provided with a bottom plate that lands on the bottom of the borehole, and a water outlet is provided on the outer wall of the lower end in opposition to the staggered streak. In the middle of the pipe of the water supply pipe, a valve for preventing hot spring or underground water from flowing backward from the water outlet into the water supply pipe is provided, and a valve for adjusting the amount of makeup water is provided at the upper end thereof, and the amount of pumped water is increased. The hot spring according to claim 4, 5, 6, or 7,
Groundwater pumping equipment. 9. The hot spring or groundwater according to claim 4, wherein the water pipe is inserted through the inside of the water pump pipe to the bottom of the hole of the drilling well. Pumping equipment. 10. The pumping pipe inner pipe and the water supply pipe are inserted into the outer pipe of the pumping pipe, and both pipes are fixed so as to keep a constant interval, and an air space is provided between the outer pipe and both the inner pipes. The hot-water and underground water pumping apparatus according to claim 4, characterized in that: