KR100773062B1 - Highly Efficient Fluid Injection Apparatus - Google Patents

Abstract

The present invention relates to a high-performance fluid injector, the high-performance fluid injector according to the present invention, the hydraulic generator is located on the surface, the extension rod is inserted into the soil and extendable and hollow, and the extension rod An expansion portion coupled to communicate with a lower portion of the expansion portion and radially expanded by the hydraulic generator to prevent movement of the fluid moved to the soil to the upper portion; It is formed in a circumferential direction, characterized in that consisting of the injection rod having a plurality of injection portion for discharging the fluid by the high pressure pump.

Accordingly, the present invention is economical by reducing the consumption of fluid for soil restoration and the like, and can increase the efficiency of soil restoration and the like, and can reduce the time required for soil restoration. In addition, the structure is simple and easy to manufacture has the effect of reducing the production cost. In addition, the pressure loss can be prevented during the fluid injection has the advantage that the correct amount of fluid can be put in the correct place.

Soil, restoration, reforming, improvement, groundwater restoration, high performance, fluid injection device, restoration method, chemical

Description

Highly Efficient Fluid Injection Apparatus

1 is a view showing a double well for conventional soil restoration.

Figure 2 is a cross-sectional exploded perspective view showing a high performance fluid injection device according to the present invention.

Figure 3 is a cross-sectional view showing a combined state of the high performance fluid injection device according to the present invention.

4 is a perspective view showing a state in which the injection portion of the injection rod according to the present invention is a slit.

5a to 5g are explanatory views showing a soil restoration method using a high performance fluid injection device according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: extension rod 11: fastening part

12: injection pipe 20: expansion portion

21: fastening part 22: inner part

23: injection hole 24: expansion ring

25: fluid injection pipe 30: injection rod

31: fastening portion 32: injection portion

32a: through hole 32b: slit

40: filling

The present invention relates to a high performance fluid injector, and more particularly, to a high performance fluid injector for injecting fluid into soil for contaminated soil.

Soil is composed of soil particles, pore water, and air, and there is mutual exchange of materials between them. Soil is in a fixed state and is not well mixed, so when various contaminants enter the soil, the self-cleaning ability due to physical, chemical, and biological actions is reduced. When pollutants accumulate in the soil, it contaminates groundwater, pollutes the surface water by long-term outflow, and even harms the human body. This is collectively called soil pollution.

In most cases, the soil is contaminated by descent of air pollutants, wastewater, sewage, waste dumping, pesticides, fertilizer spraying, oil storage leaks, illegal waste, and so on. It may be a source of pollution. Soil pollution is regulated by the Soil Environment Conservation Act (1995.1.5 Law No. 4906). Contamination of crops by heavy metals such as cadmium, mercury, lead, zinc, arsenic, and hexavalent chromium have a significant effect on public health. This is it. DDT pollution in the United States (the incident where deaf chicks were killed by enrichment after spraying three times from 1949 to 1957 to kill mosquitoes on Lake Clear Lake, USA) As a result of the common interest, countries have not only enforced strong regulations such as prohibition of DDT and BHC spraying, but have also been continuously researching technologies to recover soil by treating soil pollutants.

Such soil restoration techniques to treat the pollution caused by oil in the soil pollutants include the soil vapor extraction method of vacuum suction of volatile contaminant gas and the activity of microorganisms present in the soil by forcibly injecting or extracting air into the ground. Biological ventilation to decompose pollutants biologically by increasing the amount, and chemical oxidation to oxidize the pollutants by injecting a powerful oxidant.

Among these methods, dual tablets for soil restoration for biological ventilation have been disclosed in Korean Patent Application Publication No. 2004-58828 (name of the invention: a dual structure restoration for restoration of contaminated soil and groundwater), and double definition for soil restoration. The construction state is shown in FIG.

As shown, the double tablet 100 is a non-saturated zone injection / extraction well 110 for injecting and extracting air into the non-saturated zone, aquifer injection well 120 for injecting air into the aquifer and the non-saturated zone injection A screen 130 for injecting and extracting air into the lower portion of the extraction well 110 and the lower portion of the aquifer injection well 120, and an inner circumferential surface of the air supply pipe 140 and the non-saturation zone injection / extraction well 110. And a blocking block 150 for sealing an outer circumferential surface of the air supply pipe 140.

The configuration as described above is to restore the soil by supplying air through the aquifer injection well 120, the air supplied through the air supply pipe.

In the case of the double tablet (100) is a method of restoring the soil by injecting air into the soil, it is limited to volatile substances and relies only on the action of increasing the separation coefficient between the gas / solid of the volatile material more aggressive than this method Phosphorus chemical oxidation is used.

Conventional chemical oxidation has been used as a method of injecting a hole-type tube in the form of a pipe to a fluid injection device for injecting chemical fluid into the soil, inserting it into the perforated soil, and injecting the liquid at high pressure into the soil. In the case of the fluid injection device, the fluid injected at high pressure is intended to infiltrate the soil, but a large amount of fluid does not penetrate the soil, but has a problem of being moved upwardly along the gap between the perforated pipe and the soil. Accordingly, it takes a lot of chemical fluid for the soil restoration, there is a problem that the efficiency of the soil restoration is reduced because the fluid is not smoothly injected into the soil due to the loss of pressure.

The present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to provide a high-performance fluid injection device that can increase the economic efficiency of the soil recovery by reducing the consumption of fluid for soil restoration. It is.

It is another object of the present invention to provide a high performance fluid injector which prevents the loss of pressure to facilitate fluid injection into the soil.

In order to achieve the above object, the high performance fluid injector of the present invention includes a hydraulic generator positioned on the surface, an extension rod positioned in the upper portion and inserted into the soil, which is hollow, and connected in communication with a lower portion of the extension rod. And an expansion part radially expanded by the hydraulic generating device to prevent the fluid moved to the soil from being moved upward, coupled to the lower part of the expansion part, and formed in a circumferential direction with an extended and vertically spaced interval. Characterized in that the injection rod having a plurality of injection portion for discharging the fluid by the pump.

In order to achieve the above object, the high performance fluid injector of the present invention includes a hydraulic generator positioned on the surface, an extension rod positioned in the upper portion and inserted into the soil, which is hollow, and connected in communication with a lower portion of the extension rod. And an expansion part radially expanded by the hydraulic generator to prevent the fluid moved to the soil from moving upward, and coupled to the lower part of the expansion part and extending in a circumferential direction with a predetermined interval up and down. Characterized in that the injection rod having a plurality of injection portion for discharging the fluid by the pump.

In addition, the injection portion of the injection rod of the present invention is characterized in that the slit or through hole.

In addition, the extension rod and the injection rod of the present invention is characterized in that it is extended by screwing, characterized in that the stainless steel (stainless) material.

In addition, the high pressure pump of the present invention is connected to the upper portion of the extension rod is characterized in that the high-pressure pump of the diaphragm type to inject the fluid into the soil.

The high performance fluid injection device according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional exploded perspective view showing a high performance fluid injection device according to the present invention, Figure 3 is a cross-sectional view showing a combined state of the high performance fluid injection device according to the present invention.

As shown, the high performance fluid injector includes an extension rod 10 positioned at an upper portion, an expansion portion 20 coupled to communicate with a lower portion of the extension rod 10, and a lower portion of the expansion portion 20. It consists of an injection rod 30 that is coupled to allow fluid to be injected into the soil.

The extension rod 10 is located at the top and is a hollow pipe. The extension rod 10 is inserted into the soil and the fastening portion 11 is formed on the upper and lower sides so that the extension rod 10 can be extended according to the position of the contaminated soil. In addition, the extension rod 10 is connected to the hydraulic generator (not shown) located in the ground, the hydraulic generator serves to inflate the fluid by injecting the expansion portion 20.

In the present invention, as the configuration of the extension rod is inserted into the extension rod 10 is coupled to the injection pipe 12 is coupled to the upper portion of the expansion portion 20 is configured, but do not need to use it and the same effect will be given.

The expansion portion 20 is radially expanded to communicate with the lower portion of the extension rod 10 serves to prevent the fluid moved to the soil from moving upward.

The expansion portion 20 is composed of a fastening portion 21, the inner portion 22, the injection hole 23, the expansion ring 24 and the fluid injection pipe (25).

The fastening part 21 is formed at an upper end coupled to the extension rod 10 and a lower end coupled to the injection rod 30, respectively.

The indentation part 22 is located between the fastening part 21 and has a predetermined length, and the expansion ring 24 is coupled to the inlet part 22. The injection hole 23 is installed in the inlet portion 22.

The injection hole 23 is formed to communicate the inside of the fastening portion 21 and the inlet portion 22 with each other, the fluid is injected through the injection hole 23 and the fluid is the expansion ring ( 24) is inflated.

The expansion ring 24 is hollow and coupled to the inlet portion 22, and the material may be expanded by injection of a fluid of rubber or other expanding material. The expansion ring 24 is in communication with the injection hole 23 is to be expanded radially by the injection of a fluid such as air or liquid through the injection hole (23). Due to the expansion of the expansion ring 24, the soil around the expansion ring 24 is densified, so that the bottom of the soil in which the expansion ring 24 is located is sealed. The expansion ring 24 is radially inflated to prevent the fluid injected into the soil from the injection rod 30 to rise without restoring the soil to restore the soil, as well as to reduce the amount of the injected fluid, The soil restoration efficiency can be increased, and the pressure loss can be prevented when the fluid is injected, so that the correct amount of fluid can be put in the correct place.

The fluid injection pipe 25 is inserted into the extension rod 10 and is connected to the injection hole 23 to serve to inject fluid into the expansion ring 24. At this time, the fluid injection pipe 25 is preferably fastened to the injection hole 23 and the screw.

The injection rod 30 is coupled to the lower portion of the expansion portion 20 and is made of a hollow pipe like the extension rod 10. The injection rod 30 is inserted into the soil and the fastening portion 31 is formed in the upper and lower so that it can be extended according to the depth of the contaminated soil. In addition, the injection rod 30 is provided with a plurality of injection portions 32 formed in the circumferential direction at regular intervals up and down. The injection portion 32 of the injection rod 30 may be a through hole 32a or a slit 32b (see FIG. 4). If the injection part 32 is to be a through hole 32a, a plurality of injection parts 32 must be formed, so processing is not easy. However, when the injection part 32 is a slit 32b, processing is facilitated by a cutter or the like. . At this time, the fluid injected through the injection unit 32 may be selected from various kinds of chemicals according to the type of soil pollution. Pressure is generated in the fluid, such as a chemical injected into the injection rod 30, and is discharged to the injection part 32. At this time, a high pressure pump (not shown) is used to inject the fluid into the soil. The high pressure pump is connected to the upper portion of the extension rod 10 and is preferably in a diaphragm manner. This diaphragm-type high pressure pump is most suitable for application to soil because it is possible to prevent backflow due to the load of the soil, unlike the conventional plunger type high pressure pump or hydraulic high pressure pump.

The high performance fluid injector having the above configuration will be used for various purposes such as restoration of contaminated soil, reforming and improving soil, and restoration of groundwater.

5A to 5G are explanatory views showing a soil restoration method using a high performance fluid injection device according to the present invention.

Using the high-performance fluid injector as described above to restore the soil in the following way.

First, the soil is drilled (FIG. 5A). At this time, the high-performance fluid injector is drilled into a diameter of a size that can be inserted. If the diameter is too large at the time of drilling, it is difficult to seal, so it is drilled to a suitable size diameter. At this time, in order to install a high-performance fluid injector in the soil, the drilling equipment may be a conventional auger at the time of soil drilling, but can also be easily drilled with a soil sampler.

Subsequently, the extension rod 10, the expansion part 20, and the injection rod 30 are sequentially connected, and the fluid injection pipe 25 is connected to the injection hole 23 (FIG. 5B). In addition, the injection pipe 12 inserted into the extension rod 10 is coupled to the upper portion of the expansion portion (20). At this time, the injection pipe 12 may be omitted. Subsequently, the injection rod 30 is inserted into the perforated soil to insert the expansion portion 20 up to the upper portion of the contaminated soil (FIG. 5C). Subsequently, fluid is injected through the fluid injection pipe 25 of the expansion part 20 to expand the expansion ring 24 (FIG. 5D). By expanding the expansion ring 24, it is possible to reduce the amount of fluid injected by preventing the fluid injected into the injection part 32 of the injection rod 30 from rising to the soil to restore the soil. In addition, the soil restoration efficiency will be improved. Subsequently, the space between the extension rod 10 and the soil is filled with grout 40 to grout (FIG. 5E). At this time, the filling material 40, but preferably Na-bentonite may be used, such as cement, mortar, concrete. When Na-bentonite contains water, the volume increases by about 10 times or more, thereby increasing the sealing effect between the perforated soil and the extension rod 10. Subsequently, the fluid for soil restoration is injected into the injection rod 30 through the extension rod 10 and the expansion portion 20 at high pressure (FIG. 5F). Since the fluid for restoring the soil, reforming and improving the soil, and restoring the ground water is injected into the injection rod 30 at a high pressure, the fluid is injected into the lower soil of the expansion part through the injection portion 32 of the injection rod 30. Inject (FIG. 5G). At this time, since the expansion ring 24 prevents the fluid injected through the injection part 32 of the injection rod 30 from rising upward, most of the injected fluid is used for soil restoration and so on. Not only can reduce and increase the efficiency of soil restoration, but also reduce the time required for soil restoration.

As described above, the present invention is economical by reducing the consumption of fluid for soil restoration and the like, and can increase the efficiency of soil restoration and the like, and has an effect of reducing the time required for soil restoration. In addition, the structure is simple and easy to manufacture has the effect of reducing the production cost. In addition, the pressure loss can be prevented during the fluid injection has the advantage that the correct amount of fluid can be put in the correct place.

Claims (5)

Hydraulic generator located on the surface; An extension rod positioned at the top and inserted into the soil and extendable and hollow; It is coupled in communication with the lower portion of the extension rod and is radially expanded by the hydraulic generator to prevent the fluid moved to the soil to move to the upper portion, and the upper end so that the injection rod located in the extension rod and the lower portion is fastened A fastening part respectively formed at a lower end, an inlet part positioned between the fastening part, an injection hole for communicating with the inner part of the fastening part, and an inlet part communicating with each other, and having an interior hollow and coupled to the inlet part and communicating with the injection hole An expansion ring is provided to radially expand by fluid injection by the hydraulic generator through the injection hole, the expansion portion is inserted into the extension rod and connected to the injection hole is provided with a fluid injection pipe for injecting fluid ; A plurality of injection coupled to the lower portion of the expansion portion and formed in the circumferential direction with a predetermined interval up and down, connected to the upper portion of the extension rod and discharged by a diaphragm-type high pressure pump to inject the fluid into the soil An injection rod having a portion; High performance fluid injection device, characterized in that consisting of. delete The method of claim 1, High performance fluid injection device, characterized in that the extension rod and the injection rod is screwed to extend. The method of claim 1, The extended rod and the injection rod is a high performance fluid injection device, characterized in that the stainless (stainless) material. delete

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