KR101160678B1 - System and method for recovering clogging of collecting well - Google Patents

Abstract

The present invention relates to a groundwater intake well clogging water flow recovery facility and method, and to prevent the surrounding water around the wells installed in the riverbanks to be blocked by foreign matter, and even if the blockage is eliminated by forming a stream of groundwater flow smoothly by increasing the intake of groundwater For the purpose of
The groundwater intake well clogging water flow recovery facility according to the present invention includes an injection pressure well (20) buried in the periphery of the well (10) formed in the ground to collect ground water and provided with a hole for the fluid to pass through; Shock wave means installed inside the injection pressure well and impacts the groundwater introduced into the injection pressure well to disperse the soil layer around the injection pressure hole and the water well by the impact wavelength to form a water flow so that the ground water flows into the water well ( 30).

Description

Groundwater intake well clogging water flow recovery facility and method {SYSTEM AND METHOD FOR RECOVERING CLOGGING OF COLLECTING WELL}

The present invention relates to a groundwater intake well clogging water flow recovery facility and method, and more particularly, to prevent the surrounding water around the intake well installed in the river, such as to prevent clogging, even if the blockage occurs to form a water flow flowing smoothly groundwater. It relates to a groundwater intake well clogged water flow recovery facilities and methods.

Recently, the problem of water shortage is emerging as a global problem, not just a specific country, and in Korea, the problem of water shortage is slowly emerging as a challenge. Until now, most of the water required for domestic homes and industrial facilities has been collected / supplied for drift water.

Laws and methods of attracting and supplying water from rivers or lakes have been widely used.

However, the supply of drift water by dam construction suffers from difficult problems such as securing of dam candidates, environmental problems, and the long time required to supply water, which leads to an urgent need for development and distribution of alternative sources. It is a situation.

In addition, due to the rapid economic development, the transition to high industrial society, and the improvement of the standard of living of the people, the amount of various toxic pollutants discharged to the rivers has increased, and the water quality of the rivers is gradually deteriorating with time. In addition, the concentration of population and the creation of indiscriminate industrial complexes further increase the water pollution of rivers and lakes, which are the foundation of the water supply.

have.

Intake method using aquifer has two types of direct intake and indirect intake.

The direct intake method is excavated in a vertical direction to the groundwater flowing in the aquifer, or the surface water is filtered and used as a source of intake, which may be caused by chemicals such as disinfectants and flocculants (especially heavy metal components). As pollution becomes severe, it is practically difficult to use it as a source of intake such as drinking water, and accordingly, an indirect intake method of collecting and collecting water flowing into the aquifer has recently been used.

Recently, the riverside filtration method has attracted attention as an indirect intake method. The riverside filtration method installs a well in an alluvial aquifer widely distributed in the stream, instead of directly ingesting the river water, which has a deteriorated water quality. In order to filter out, a strainer having fine openings is installed. The water passing through the alluvial aquifer is pumped through this strainer. In other words, the contaminated river water is filtered and adsorbed as it passes through the alluvial bed and undergoes biodegradation, and the force forming the alluvial bed is filtered by the strainer to improve the water quality.

In this riverside filtration method, the river water is retained in the aquifer of the river for a long time to remove contaminants and toxins by using the soil's self-cleaning action, and thus water treatment can be reduced in the subsequent water purification process. This is more economical and safer than direct intake and high-purity treatment, and is also beneficial for dealing with accidental water quality incidents.

However, in order to secure a large amount of water intake in conventional groundwater wells or river basin filtration wells, such as radial basin wells or riverside blisters (here, the riverside filtration wells include both vertical wells having a similar structure to groundwater wells and wells having radial wells. In case of developing and using it, a large amount of water can be taken at the beginning of the intake, but as the time goes by, the intake decreases gradually and eventually reaches a closed well.

The reason for this is that the aquifer flowing through the groundwater is generally thin, and in the case of riverside filtrate, the clay or sand granules move along the groundwater as the time passes after the development, thereby blocking the flow of the groundwater.

On the other hand, the blockage of groundwater flow is related to the speed of groundwater or riverside filtrate, and in the case of riverside filtrate or groundwater, the section where water flow is formed rapidly does not generate clay or sand granules or it is very small. The flow of water can be maintained for a long period of time because it takes time, but in the section where the flow of water is slow, the accumulation of clay or sand fine particles occurs, and the flow of water is blocked in a short period of time, which affects the main stream of water. Act as a factor.

This phenomenon is also found in water treatment filter tanks filled with large-capacity filter sand (filter material), and the treated water must be dispersed and distributed evenly in the filter sand, but in the case of pressure filtration, the filter material is compacted and water flow is blocked. Intensive water flows into only a few sections, resulting in a sudden decrease in filtration efficiency.

In order to overcome such blockage of underground water flow, there is a Patent No. 10-689114. However, the conventional patent is only a technique for subsequently cleaning the clogging of the water collecting pipe, which requires a high cost and cumbersome work, and does not fundamentally solve the clogging of the water collecting pipe. Still had.

As another method, a method of causing water flow to be formed again by shaking the slime accumulated between the water veins by instantaneously spraying the high pressure gas to generate pulses to recover the veins. In addition, by rotating the brush while spraying the high-pressure compressed gas to wash the strainer has been using a method to increase the inflow of groundwater flowing into the groundwater wells or riverside sump.

Another method is to remove the scale and scale attached to the strainer by using a brush and inject high pressure compressed air to impact the filtration layer around the intake well to restore the water flow of the groundwater.

Or recovery of the intake water by restoring the groundwater stream through the injection of high pressure compressed water or by recovering the groundwater stream during the freezing and dissolution of the groundwater by the evaporative heat of the liquefied carbon dioxide injected through the injection of liquefied carbon dioxide. There is a way to gain.

In addition, there is a method of restoring the blocked groundwater flow around the well by using the impact obtained by blowing a limited amount of explosives inside the ground well.

Conventional methods as described above have a problem that appears to be a temporary effect only in the formation of the groundwater flow and recovery of the intake water by affecting only a limited area around the water well.

Patent Registration No. 10-0661277 Patent Registration No. 10-1083354

The present invention is to solve the problems as described above, and to prevent the surrounding water intake well installed in the riverside to be blocked by foreign matters, and even if the blockage is eliminated by forming a water flow flowing smoothly to the ground water to increase the intake of ground water The aim is to provide a facility and a method for recovering groundwater intake well clogged water streams.

Groundwater intake well clogged water flow recovery facility according to the present invention, the water well is formed in the ground to collect ground water; An injection pressurizer embedded in a circumference of the water well and provided with a hole to allow fluid to pass therethrough; Shock wave means installed in the injection pressure hole and impacts the groundwater introduced into the injection pressure hole to shake the soil layer around the injection pressure hole and the water well by the impact wavelength to form a water flow so that the ground water flows into the water well Characterized in that it comprises a.

According to the groundwater intake well clogging water flow recovery facilities and methods according to the present invention, it is possible to support the utilization of groundwater resources through the securing of water intake by preventing the blockage around the water well and forming a smooth flow of ground water by eliminating the blockages. It is possible to prevent water intake unusable situation caused by a sharp drop.

1 is a side view showing the configuration of the groundwater intake well clogged water flow recovery facility according to the present invention.
Figure 2 is a plan view showing the configuration of the groundwater intake well clogged water flow recovery facility according to the present invention.
Figure 3 is an enlarged view of the injection pressure well applied to the groundwater intake well clogged water flow recovery facility according to the present invention.
Figure 4 is an illustration of the impact wave means 30 applied to the groundwater intake well clogged water flow recovery facility according to the present invention.
Figure 5 is a block diagram containing a water meter measurement in the groundwater intake well clogged water flow recovery facility according to the present invention.
Figure 6 is another exemplary application of water meter measurement to groundwater intake well clogged water flow recovery facility according to the present invention.
Figure 7 is an exemplary view of the sand layer applied to the groundwater intake well clogged water flow recovery facility according to the present invention.
8 is a view showing a connection state of the controller room and the impact wave means and the injection pressure well of the groundwater intake well clogged water flow recovery facility according to the present invention.

As shown in Fig. 1 and 2, the groundwater intake well clogged water flow recovery facility according to the present invention is formed in the periphery of the intake well 10, the intake well 10 is formed in the ground to collect the ground water, It is composed of an injection pressure pusher 20 for providing a space for injecting fluid and an impact wave means 30 for impacting the soil layer around the intake well 10 to form a channel.

The water well 10 is typically capable of any configuration for watering groundwater, for example, as shown in the drawing, a vertical water well 11 (including a tubular casing separate from the pores), the perimeter of the vertical water well 11 Consists of a plurality of horizontal intake pipe 12 which is radially piped to the part, the submersible pump 13 is mounted inside the vertical intake well 11 to discharge groundwater through the vertical intake well 11 and the horizontal intake pipe 12 Pump. The vertical water well 11 is sealed to be opened and closed through a protective hole or the like at the top.

Injection pressure pusher 20 and the impact wave means 30 is to prevent the sediment layer around the water intake well 10 with various foreign substances flowing with the groundwater to prevent clogging and to form a waterway by eliminating the blockage and the stuck portion, the injection pressure pusher ( 20) is to provide a space for widely spraying high pressure fluid, the shock wave means 30 is to shake the soil layer by the method of impacting the soil layer around the water intake well 10 through the high pressure fluid, etc. To get rid of them and form channels.

Injection pressure pusher 20 is a high-pressure fluid (high pressure fluid may directly impact the soil layer, indirectly through the groundwater can impact the soil layer, where the high pressure fluid includes everything that directly or indirectly impact, Hereinafter will be described taking an indirect impact through the groundwater as an example.

Injection pressurizer 20 may be a porous type formed by a perforation in the ground, it may be made of a separate pressurization well casing inserted into the perforation, it is preferably configured as a pressurization well casing to set the direction of the high-pressure fluid as described below Do. The pressurizing well casing is not limited to the circular tube shown in the drawings, it is also possible to square, etc., the material can be variously selected, such as steel, aluminum, synthetic resin.

Injection pressure pusher 20 should be formed with an opening to enable high-pressure injection of the fluid. The opening may be a perforated hole (ie a perforated tube) in the tube and may be formed through a known strainer.

As shown in FIG. 3, the injection pressure pusher 20 may be configured to have the same diameter as a whole. In this case, an upper space of the groundwater level without filling the groundwater in the upper part of the injection pressure pusher 20 functions as an air chamber and is compressible. This space acts as a cushion when high pressure compressed fluid is injected, thereby halving the operational effects of the shock wave means. Therefore, an injection pipe 21 having a diameter smaller than the diameter of the injection pressure pusher 20 is connected to a portion, for example, the injection pressure pusher 20, into which the high pressure fluid is injected, and the shock wave means 30 is connected to the injection pipe 21. It is desirable to minimize the above ground water level by connecting the () to suppress the air chamber function.

The injection pipe 21 may be a tubular shape of which the upper part is open, and the opening part of the upper part may be connected to the shock wave means 30 or may be sealed through the cap 12a. In the case of the cap 12a method, the cap 12a may be separated to release the pressure inside the injection pressure gauge 20.

The injection pipe 21 is configured to be located at a sufficient depth, for example, below the groundwater level, and the upper portion of the injection pipe 21 is grouted so that the shaking of the injection pressure pusher 20 does not occur when the impact wave means are operated.

The injection pressure pusher 20 is formed with a plurality of holes 22 (where the holes include both holes drilled in the pipe and holes of the strainer) to inject the high pressure fluid into the soil layer at high pressure. Here, when the high-pressure fluid is injected at a high pressure from the top to the bottom or in the transverse direction, a compaction effect of the soil layer may occur and the dispersion effect of the soil layer may be reduced, so that the hole 22 is inclined toward the top (for example, the ground surface is It is desirable to form an angle of 45 degrees).

The shock wave means 30 is capable of generating any physical force capable of dispersing the soil layer, and may be a high pressure fluid such as high pressure water, high pressure air, high pressure gas (liquefied carbon dioxide), an impact force that generates an explosive force, Pulse shock generated by instant injection and pressurization of high pressure compressed gas is possible.

4 shows the shock wave means 30 for injecting a high pressure fluid, the shock wave means 30 is a fluid tank 31, a compression pump 32 for compressing the fluid stored in the fluid tank 31 at high pressure , The injection tube 33 for transporting the high pressure fluid compressed by the compression pump 32 and injected through the injection hole 33a, and the upper and lower ends of the injection hole 33a so that the high pressure fluid can be intensively injected without leakage. And a double packer 34 having a shielding function. The double packer 34 packs the high pressure fluid, etc. injected through the injection pipe 33 to be concentrated in the injection hole 33a. Since the bottom of the injection hole 33 is blocked, a packer may be installed only at the upper part. .

Of course, the high pressure compressed gas, for example, nitrogen gas, etc. in a state filled with a high pressure container, by opening or closing the valve manually or automatically it will be possible to adopt a method of releasing high pressure high pressure gas.

The injection pressure gauge 20 is a periphery of the water well 10, for example, in order to smoothly flow the ground water, for example, when the water well 10 is installed on the riverside to intake the groundwater generated from the river water, between the riverside and the water well 10. It is preferable that a plurality be constructed.

Therefore, the method of connecting the injection pressure pusher 20 and the impact wave means 30 in a 1: 1 manner by injecting high pressure fluid into all the injection pressure pushers 20, two or more injections into one impact wave means 30 It will be possible to connect the tack 20. In the latter case, the plurality of injection pressure pushers 20 are connected to each other through a connection pipe connected to the injection pipe 21 while being formed at a predetermined distance from each other at the circumference of the water extraction well 10, and the connection pipes are shock wave means. Is connected to 30, one shock wave means and a plurality of injection pressure tack is connected.

The shock wave means 30 operates through manual / automatic control, for example, manual operation by a switch operation of an administrator, and automatic operation by intermittent operation or sensing through a certain time.

For example, as shown in Figure 8, the controller room is provided on the ground, the controller 40, the shock wave means 30 is built in the controller room. When two or more fluid tanks 31 are used and two or more injection lines are formed, the fluid tanks 31 are opened through the valve 43, and the fluid regulated through the valve 43 is manifold ( 42) is distributed and supplied to two or more injection lines.

The controller 40 controls the shock wave means 30 to operate for a predetermined time on the basis of the time determined by the manager's selection and a predetermined time period by the timer.

For the control method by sensing, it is necessary to detect the time point for requesting the impact of the soil layer. For example, as shown in FIG. 5, the water meter measurement 50 is constructed in the ground, and the water flow information inside the water meter measurement 50. A water flow sensor 51 for detecting (water level, flow rate, flow rate, etc.) is provided.

The controller 40 compares the value detected by the water flow sensor 51 with a previously stored value (which may vary depending on the conditions of the soil layer), so that the water level inside the water flow meter measurement 50 is lowered or the groundwater flow is not smooth. , And determines that the soil layer is blocked to control the operation of the impact wave means (30).

The water flow may be measured using the injection pressure gauge 20 without separately configuring the water flow meter measurement 50.

In addition, a slime pump 52 for discharging slime may be installed in the water meter measurement 50 to eliminate inaccuracies in sensing due to the water meter measurement 50 itself.

The water flow meter measurement 50 is preferably a plurality of construction for more accurate measurement, may be packaged as one with the injection pressure gauge 20 on the basis of the flow of groundwater.

For example, as shown in FIG. 6, three water flow meter measurements 50-1, 50-2, 50-3 and six shock wave means 30-1, 30-2, 30-3 are constituted. However, by combining two shock wave means (30-1, 30-2, 30-3) in one water flow measurement (50-1, 50-2, 50-3), respectively, to configure three packages, If only the first water meter measurement 50-1 is determined to be clogged, only two first impact wave means 30-1 close to the first water meter measurement 50-1 are operated, and the remaining second and third The second and third impact wavelength means 30-2, 30-3 corresponding to the water flow meter measurements 50-2, 50-3 do not operate.

On the other hand, the high pressure fluid may not be injected into the soil layer outside the injection pressure pusher 20 due to the blockage of the injection pressure pusher 20, and is configured as follows to enable more rapid repair by checking the blockage.

The sensor 41 (pressure sensor and water flow sensor, etc.) for detecting the pressure and the flow of the fluid (flow rate, flow rate, etc.) inside the injection pressure well 20 is mounted inside the injection pressure well 20, and the controller 40 If the detected value is different from the pre-stored value based on the value detected by the sensor, it is determined that the injection pressure gauge 20 is broken (blocking) and the alarm means such as a warning sound or a warning light does not operate without operating the shock wave means 30. Notify your administrator.

In addition, when constructing the injection pressurizer 20, the water intake well 10, etc. of the present invention, a new sand layer, that is, a sand layer 60 (shown in FIG. 7) without clogging by foreign matters, is constructed to more effectively achieve the object of the present invention. It can also be achieved by For example, after the trench for the formation of the sand layer 60, the water intake well 10, the injection pressure pusher 20, and the like, and the sand back to form a sand layer (60). Or in addition to the initial construction, when the sand layer is severely blocked during the use of the present invention can not be formed by the impact wave means 30, the existing sand is discharged after the new sand is laid to form a sand layer (60).

Groundwater intake well clogging water flow recovery method according to the present invention is as follows.

1. Dispersion of soil layers around water wells.

The impact wave means 30 is installed in the injection pressure pusher 20 formed in the ground, and since the injection pressure pusher 20 is porous having a hole 22, the hole 22 in the state where the impact wave means 30 does not operate. Through) the groundwater is introduced into the injection pressure tack (20).

The controller 40 controls the operation of the shock wave means 30 (control is variously implemented according to the control method of the controller 40).

When the shock wave means 30 is operated, for example, a high pressure fluid is injected at a high pressure into the injection pressurizer 20 to generate a large pressure wave inside the injection pressurizer 20, and the pressure inside the injection pressurizer 20 is an injection pressurizer ( Since it is higher than the external pressure of 20), the groundwater in the injection pressure vessel 20 is sprayed to the outside of the injection pressure vessel 20 at a high pressure. Since the hole 22 of the injection pressure pusher 20 is inclined upward, the groundwater will be sprayed upward, so that the action of raising the soil layer to the top will occur, so that the dispersion of the soil layer without compaction occurs.

When the groundwater is injected with high pressure from the inside of the injection pressure well 20 to the outside, the soil around the injection pressure well 20 is dispersed by the pressure of the ground water, that is, even if the soil of the soil layer is stuck and clogged with each other by a foreign substance having a viscosity Dispersed by the pressure of the groundwater, a gap is created between the soil and the groundwater flows through the gap.

The operation of the shock wave means 30 can be made intermittently over a certain time and can also be made through the manual operation of the manager.

2. Control by sensing.

The present invention is also capable of sensing the flow of groundwater in the soil layer and automatically dispersing the soil layer on the basis of the sensing value, first sensing the flow of groundwater in the soil layer.

When the water flow meter measurement 50 is applied, the flow rate, flow rate, and the like of the groundwater introduced into the water flow meter measurement 50 through the water flow sensor 51 are sensed.

The controller 40 compares the value sensed by the water flow sensor 51 with the pre-stored value. If the current sensing value is different from the pre-stored value, for example, the current pressure is lower than the pre-stored pressure or the current level is higher than the pre-stored water level. If low, the shock wave means 30 is activated.

3. Independent control of multiple shock wave means.

When a plurality of shock wave means 30 is applied, a plurality of shock wave means 30 is packaged together with one water meter measurement 50, the groundwater flow is not good among the plurality of water meter measurement 50 Only the water flow meter measurement 50 and the packaged shock wave means 30 are operated. According to this method, an effect that can prevent unnecessary loss of power is derived.

The present invention is configured so that the shock wave means 30, the sensor and the controller 40 to enable the wired / wireless communication, monitoring and remote control in the remote control room.

10: water well, 11: vertical water well
12: horizontal intake pipe, 13: submersible pump
20: injection pressure gauge, 21: injection pipe
22: hole,
30: shock wave means, 31: fluid tank
32: compression pump, 33: injection tube
34: Packer,
40: controller, 41: sensor
50: water meter measurement, 51: water flow sensor
52: slime pump,
60: sand layer,

Claims (12)

A water well (10) formed in the ground to collect ground water;
An injection pressurizer 20 embedded in the periphery of the water well and provided with a hole for the fluid to pass therethrough;
Shock wave means which is installed inside the injection pressure tack and impacts the ground water introduced into the injection pressure tack to disperse the soil layer around the injection pressure pit and the water extraction well by the impact wavelength to form a water flow so that the ground water flows into the water well ( 30) groundwater intake well clogged water flow recovery facility comprising a). A water well (10) formed in the ground to collect ground water;
An injection pressurizer 20 embedded in a periphery of the water extraction well 10 and provided with a hole to allow fluid to pass therethrough;
Shock wave means (30) installed inside the injection pressure well and impacts the groundwater introduced into the injection pressure well to shake the soil layer around the injection pressure well and the water well by the impact wavelength to form a water flow so that the ground water flows into the water well. )and;
A sensor which is inserted into a water meter measurement formed in the ground between the water well and the injection pressure well and detects water flow information including a water level inside the water meter measurement;
And a controller for controlling the operation of the impact wave means on the basis of information including the detected value of the sensor. The groundwater intake well clogging water flow recovery facility according to claim 1 or 2, wherein the injection pressure well is made of a pore type formed in the ground or a pressure well casing inserted into a wall of the pore, and configured to block an open portion of the upper portion. The groundwater intake well clogging water flow recovery facility, characterized in that the injection pipe 21 of the diameter smaller than the diameter of the pores and the pressurization well casing is formed on the top. The groundwater intake well clogging water flow recovery facility, characterized in that the hole is formed inclined toward the top while going to the circumference. The method according to claim 4, The injection pressure tack is connected to each other through a connection pipe which is connected to the injection pipe while a plurality of the plurality is formed at the periphery of each of the water extraction well, the connection pipe is connected to the impact wave means, A groundwater intake well clogged water flow recovery facility, characterized in that one impact wave means and a plurality of injection pressure tack is connected. The groundwater intake well clogging water flow recovery facility according to claim 1 or 2, wherein the impact wave means is any one selected from a high pressure air injector, a high pressure water injector, a high pressure gas injector, and an explosive device. The apparatus of claim 7, further comprising a sensor mounted inside the injection pressure gauge to detect the pressure and the flow of the fluid in the injection pressure well, and determining a failure of the injection pressure gauge based on information detected through the sensor. Groundwater intake well clogging water flow recovery facility, characterized in that. According to claim 7, The shock wave means, Fluid tank, Compression pump for compressing and pumping the fluid stored in the fluid tank, Injection pipe for injecting the high-pressure fluid compressed through the compression pump into the injection pressure gauge Groundwater intake well clogging water flow recovery facility, characterized in that. The groundwater intake well clogged water current recovery facility according to claim 1 or 2, comprising a sand layer (60) filled around the water well and the injection pressure well. A high pressure fluid is formed at the periphery of the water extraction well 10 formed in the ground to collect ground water in the same direction as the water extraction well, and the high pressure fluid is injected into the injection pressure well through the impact wave means 30. And underground water applying a physical impact to the soil layer accumulated at the periphery of the water well, thereby dispersing the soil to form a stream of groundwater flowing between the soil. The sensor of claim 11, wherein the sensor senses information including a level of groundwater flowing into the water well or a level or flow rate of ground water flowing around the water well, and compares the sensed information with previously stored information. A groundwater intake well clogged water flow recovery method characterized in that it is controlled to inject a high pressure fluid to the injection pressure tack.

Images