KR200201248Y1 - Shielding device for water collection by groundwater depth section - Google Patents

Abstract

The present invention is economical and efficient by analyzing the location and inflow of groundwater by depth section of groundwater core wells after excavation of groundwater core wells, and by analyzing the samples collected by the pump. It is an object of the present invention to provide a shield for groundwater deep well collection, which may be able to obtain basic data for groundwater excavation and grouting construction. The upper fastening part and the lower fastening part are formed at the upper and lower part of the pipe part to connect with the pumping pipe to allow pumping of groundwater, and the expansion rubber tube is inserted into the outer peripheral part of the pipe part. Welded socket with female thread Lock and insert the water level sensing line and power cable through the inside of the pipe section and take it out to the outside, insert the rubber o ring, and then process the external thread on the outside, and insert the water level sensing line and the power cable into the center hole. To secure the watertightness by tightening the bushing, the perforation part is formed in the upper and lower parts of the pipe part, and the air breathing pipe is connected and fixed through the inside of the pipe part. The breathing apparatus was configured to penetrate the outer circumferential surface of the part to be connected to the lower groundwater level.

Description

Shielding device for withdrawal by groundwater depth section {.}

In general, in order to collect groundwater, excavate the rock of the surface to the surface layer using a pit of a certain thickness, and then put out the large diameter outcasing to prevent the collapse of the surface layer, and then excavate the rock layer again to penetrate the vein. Insert the in casing pipe and strainer pipe to prevent the inflow of surface water afterwards, and inject the concrete liquid into the space between the casing pipe and the inner wall of the groundwater core and insert the groundwater core pump and pumping pipe inside the casing pipe. It was installed to pump groundwater inside the heart well to the intended place outside.

The groundwater well pump has a ground level well pump which starts and stops according to the groundwater level by the upper level switch and the lower level switch installed in the pipe.

When the surface layer and rock layer are excavated in sequence using a plowing machine, several large and small water veins are met. These veins flow through the topsoil in the surface layer, but in the rock layer, veins are generally formed between the rocky and rocky connections. Will be introduced. In general, the surface water flowing from the veins formed in the topsoil layer is often contaminated, and the groundwater taken from the rock layers is clean enough to drink.

Conventionally, in order to check the amount of groundwater collected, the amount of water pushed up by the power of the compressed air supplied through the landing bit and the rod was measured during the excavation process. It is inevitable to measure a lot by taking water present. For accurate measurement, it is preferable to measure over a long period of continuous pumping period.

In order to do this, however, a normal pumping pipe, a well pump and a flow meter must be installed and grouting to block surface water inflow and a strainer to protect the well pump and the well caused by excessive soil inflow into the well. .

The biggest problem in this process has always been a matter of where and how much groundwater comes from.

In order to solve this problem, the method of pumping the groundwater in the heart well with a simple heart pump pump and then inserting the underwater camera for the heart well and recording it and analyzing it has been used as the most advanced means. Only the upper part can effectively measure the location and amount of water dropping, and it is difficult to collect samples for water quality inspection, as well as a large amount of groundwater inflow into the groundwater well, so that when the underwater camera is submerged, it is simply formed between the rock and the rock. I could only check.

Since it is not possible to know how much groundwater of which water quality is collected at which location, grouting construction has to be made by determining the construction depth and construction method by the contractor's arbitrary judgment. In this case, the sampling for groundwater quality test is performed after the grouting work is completed. When the water quality test resulted in the non-conformity, it was forced to rebuild, and when it was impossible, the excavation occurred again by digging again to make a new feeling. As a result, it was a cause for triggering contamination of the surrounding groundwater.

In addition, when selecting the installation depth of the strainer, it is impossible to know the depth of the groundwater to be collected, so it is not possible to decide which depth to install. When the water was coming in and the installation depth was not matched with the water vein, the amount of water harvested would drop sharply.

In addition, in the process of collecting normal rock water, some geological factors sometimes prevent the quality of spring water from some water quality items. There was no way to confirm the basic solution could not be obtained.

The present invention is designed to solve the above-mentioned problems, and after the excavation of the groundwater wells, the groundwater inflow location and inflow rate by depth section of the groundwater wells, and the analysis of the sample collected by the pump The purpose of this study is to provide a shielding device for the collection of groundwater deep wells, which enables the analysis of each depth section even for the quality of water, which can enable the acquisition of basic data for economical and efficient groundwater excavation and grouting construction.

1 is a schematic view of the heart well installed a shielding device for the water collection according to the depth section of the groundwater of the present invention.

2 is a cross-sectional view of the shielding device of the present invention.

3 is a cross-sectional view showing the installation state of the power cable in the piping of the present invention

Explanation of symbols on the main parts of the drawings

2: pumping pipe 3: shielding device

5: groundwater core 13: expansion tube

14: piping 21: pressurized fluid injection pipe

22: fixed band 29: lock bushing

30: o ring 32: perforation

33: connector

In general, the configuration of the device for collecting groundwater is connected to the groundwater heart pump and the pumping pipe for pumping the groundwater collected by the heart pump to the outside to draw it to the outside, and the power to start the heart pump It consists of a cable, a high level switch, a switch wire connecting a low level switch, and a water level monitoring pipe.

The present invention was designed to be practically partially applied in the field by improving the patent application No. 98-33636 (98.08.19: name of the invention: water collection device and collection method for each groundwater depth section) which the inventors have already selected. It is characterized in that the upper and lower fastening portion and the expansion tube is configured in combination with the pipe to connect between the pump and the pump.

The shielding device is provided with upper and lower fastening parts that can be connected to flanges or flanges or pumped joints located at the top and bottom of the pipe part. Insert the tube but the expansion tube is characterized in that the cylindrical tubular type.

In the upper and lower parts of the pipe, a hole is formed in the body of the pipe, and the socket with the female thread is welded to the hole, and the water level detection line and the power cable are inserted through the inside of the pipe, and the rubber wire is inserted. After inserting, the external thread is machined on the outside and the water level sensing line and the power cable are fastened to the lock bushing to be inserted into the hole formed in the center to secure watertightness.

In addition, a perforation part is formed in the upper and lower parts of the pipe part, and the air breathing pipe is connected and fixed through the inside of the pipe part, and the upper part is equipped with a connector for continuously connecting the air breathing pipe, and the lower side penetrates the outer circumferential surface of the pipe part to lower the groundwater level. Characterized in that the breathing apparatus is configured to be connected to the side.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The heart pump 4 for pumping groundwater is able to pump groundwater to the outside by the connection of the pump pipe 2. In this case, the shielding device 3 is configured by combining the upper and lower fastening portions 9 and 10 and the expansion tube 13 to the pipe portion 14 so as to be connected between the pumping pipe 2 and the pumping pipe 2. The shielding device 3 is fastened between the pumping pipe 2 and the pumping pipe 2 at a predetermined depth, and the upper and lower fastening parts 9 and 10 are usually connected to the flange 8 or the screw connection. Will be used. The pumping pipe 2 connected to the lower part of the shielding device 3 has an upper level sensor 11 and a lower level sensor for starting the cardiac pump 4 according to the lower groundwater level 7 formed below the shielding device 3. (12) is provided.

The shielding device 3 was inserted into a cylindrical tubular type expansion tube 13 to the outer circumferential side of the pipe 14 to fix the upper and lower ends to the fixing band 22.

In the upper and lower parts of the pipe part 14, a perforated part 32 is formed in the body of the pipe part 14, and the socket 31, which has a female thread, is fixed to the perforated part 32, and the inside of the pipe part 14 is fixed. Insert the power cable (17), which allows the level sensor line (27) and the power cable (28) to be embedded in the cylindrical cable body, to be drawn out, and then inserts the rubber o ring (30) to process the male screw on the outside. And the water level detection line 27 and the power cable 28 was fastened to the lock bushing 29 to be inserted into the hole formed in the center to secure the watertightness.

In addition, it is possible to form a perforation part in another upper and lower parts of the pipe part 14 and connect and fix the air breathing pipe 15 through the inside of the pipe part 14, and to continuously connect the air breathing pipe 16 to the upper side. Attached to the connector 33 and the lower side was to penetrate the outer circumferential surface of the pipe 14 to be connected to the lower groundwater level 7 side to configure the breathing port 23.

In addition, the pressurized pump 26 is operated from the outside to inject the fluid pressurized to expand the expansion tube 13, the pressurized fluid injection pipe connected to the expansion tube 13 and connected from the pressure pump 26 ( 21 is formed by drilling a hole in the pipe portion 14 in the position where the expansion tube 13 is mounted through the inside of the pipe portion 14 through another hole formed in the pipe portion 14 to expand the expansion tube ( 13) Pressurized fluid was directly injected into the inner surface.

This invention made in this way

In the usual way, the well pump (4) and the pumping pipe (2) are introduced into the groundwater well (5), and when the predetermined depth zone is reached, the shielding device (3) is connected to the pump (2) and then separately. The water level detection line 27 and the power cable 28, which are connected and connected to the power cable 27, are waterproofed to be connected to each other.

Then, the pump pipe (2) is connected again to insert the shielding device (3). At this time, the air breathing pipe (16) is fastened to the connector (33) of the air breathing pipe (15) to the outside with the pumping pipe (2). To be withdrawn. In addition, the pressurized fluid supply pipe 21 for expanding the expansion tube 13 is also connected to the outside to be connected to the pressurized pump 26. When the shielding device 3 reaches the planned depth, the pumping pipe 2 is stopped and the pumping pipe 2 is fixed from the outside, and the water level detecting line 27 and the power cable 28 are connected to the control box. Allow the heart pump (4) to operate. When the preparation is completed, when the pressurized pump 26 is operated to inject the pressurized fluid into the expansion tube 13 of the shielding device 3, the expansion tube 13 of the shielding device 3 is expanded and the expanded expansion is performed. The outer circumferential surface of the tube 13 is strongly adhered to the inner wall surface of the groundwater core 5 to secure the watertightness. Then, when the switch of the heart pump 4 is turned on, the heart pump 4 is lowered to the groundwater level 7 below the shielding device 3. At this time, the heart pump 4 is provided by the upper and lower level sensors 11 and 12. The estrus is automatically made and the upper groundwater level 6, which is not related to the lower groundwater level 7, is formed on the upper portion of the shielding device 3 due to the shielding of the shielding device 3. If the bottom ground water level (7) increases or decreases the depth of the upper and lower level sensors (11) and (12) sections while the heart pump (4) is operated, the air volume inside the groundwater core (5) changes, and the air volume increases when the water level rises. The narrowed air is discharged to the outside through the air breathing pipe 15 and the air breathing pipe 16 and when the water level is lowered, the outside air is sucked into the groundwater core (5). At this time, in order to shield and pump a closed section, the shielding device 3 is also mounted on the lower part of the cardiac pump 4 to shield and pump the water between the shielding device 13 installed above and the shielding device 13 installed below. Is perfectly watertight.

In this way, the completed installation of the present invention lowers the pump pipe (2) to the intended depth, and when compressed air or pressurized fluid is injected through the pressurized fluid injection pipe (21), the expansion tube (13) of the shielding device (3). The groundwater is pumped by the upper and lower level sensors (11) and (12) by the upper and lower levels of the groundwater core (5), and thus the depth of the groundwater core 5 is completely shielded and disconnected. ) Pumps the groundwater to the outside through the pump pipe (2).

At this time, check the depth where the shielding device (3) is located, check the amount of groundwater pumped out per unit time to the outside, and conduct a water quality test using some of the groundwater as a sample. In addition, it is possible to accurately identify the construction depth and site of grouting, a groundwater contamination prevention facility, which was previously impossible because it is possible to identify and confirm not only the depth of inflow and the amount of groundwater in each depth section, but also the quality of groundwater in the collected section. In addition, it is possible to accurately determine the depth of installation of the strainer, enabling economic and efficient maintenance of groundwater wells.

In addition, in the process of installing the shielding device (3) is to devise the power cable and the water level detection line is located outside the expansion tube 13 to eliminate the incomplete shielding to ensure a more powerful and complete shielding .

.

Claims (5)

In order to connect the shielding device 3 to the pumping pipe 2 or the cardiac pump 4, the coupling parts 9 and 10 are formed, and the expansion part 13 is combined with the piping part 14. Shielding device for withdrawal by groundwater depth section. The method of claim 1, The shielding device (3) is inserted into the expansion tube 13 to the outer peripheral side of the pipe portion 14, the expansion tube 13 is shielding device for the groundwater depth section water collection, characterized in that formed in a cylindrical tubular type. The method of claim 1, In the upper and lower parts of the pipe part 14, a perforated part 32 is formed in the body of the pipe part 14, and the socket 31, which has a female thread, is fixed to the perforated part 32, and the inside of the pipe part 14 is fixed. Insert the water level detection line 27 and the power cable 28 through the outside and insert the o ring 30, and then the external thread is processed to the outside, and the water level detection line 27 and the power cable 28 are centered. Shielding device for the groundwater depth section water collection, characterized in that to secure the watertightness by fastening the lock bushing (29) to be inserted into the hole formed in the hole. The method of claim 1, In addition, a perforation part is formed in the upper and lower parts of the pipe part 14, and the air breathing pipe 15 is connected and fixed through the inside of the pipe part 14, and the air breathing pipe 15 is provided on the upper side of the air breathing pipe 16. And a connector 33 that can be continuously connected to the groundwater, and the lower side has a depth of groundwater that is configured to penetrate the outer circumferential surface of the pipe 14 to be connected to the lower groundwater level 7 side. Shielding device for sectioned water collection. The method of claim 1, The pressurized pump 26 is operated from the outside to inject the fluid pressurized to expand the expansion tube 13. The pressurized fluid injection pipe 21 connected to the expansion tube 13 is connected to the expansion tube 13. The expansion tube 13 is formed by forming a perforation portion in the pipe portion 14 at the position where the expansion tube 13 is mounted through the inside of the pipe portion 14 through another drilling portion formed in the pipe portion 14. Shielding device for the groundwater depth section harvesting, characterized in that the pressurized fluid is injected directly to the inner surface.