KR102465769B1 - Apparatus for supplying de aired water - Google Patents

Abstract

A main tank receiving and providing water so that degassed water can be supplied to a sample without contact with air, a degassing unit connected to the main tank to remove air from the supplied water, and a degassing unit connected to the degassing unit and supplied from the degassing unit It provides a degassed water supply device including a supply unit for supplying water to a place of use by applying pressure to the water in a non-contact state with air.

Description

Degassed water supply device {APPARATUS FOR SUPPLYING DE AIRED WATER}

The present disclosure relates to a degassed water supply device for producing and supplying degassed water.

For example, it is important to secure safety for civil structures such as shafts and dams. Various tests are conducted for quality control of building materials. Triaxial testing machines are mainly used to obtain reliable shear strength characteristics, stress strain characteristics, and dynamic properties under cyclic loading conditions for building materials.

The triaxial tester is widely used for strength analysis of soil. The triaxial tester performs the test by applying a static or operating load in the vertical axis direction with hydraulic pressure applied from the side to reproduce the stress state in the ground of the cylindrical specimen.

Degassed water from which air has been removed is used for the test through the triaxial tester. The prepared degassed water is supplied to the tester at high pressure.

However, by using compressed air in the process of supplying the degassed water manufactured by the manufacturing apparatus to the tester in the prior art, there is a problem that the degassed water cannot be supplied to the sample without contacting the air again.

Accordingly, there is a problem in that air enters the degassed water again while in contact with the compressed air, resulting in poorly manufactured degassed water and also reducing the precision of the test.

An object of the present invention is to provide a degassed water supply device capable of supplying degassed water to a tester or sample without air contact.

An object of the present invention is to provide a degassed water supply device capable of producing and supplying degassed water by removing air more effectively.

The supply device of this embodiment includes a main tank receiving and providing water, a degassing unit connected to the main tank to remove air from the supplied water, and non-contacting air to the degassed water connected to the degassing unit and supplied from the degassing unit. It may include a supply unit for supplying to the place of use by applying pressure in the state.

The deaeration unit includes a deaeration tank in which water is deaerated, a supply pipe connected between the deaeration tank and the main tank, and a spray nozzle connected to the supply pipe and disposed inside the deaeration tank to spray water supplied through the supply pipe in a spray form. , a vacuum tube connected to the degassing tank, and a vacuum pump installed in the vacuum tube to apply a vacuum pressure to the inside of the degassing tank to remove air from the water.

The degassing unit may further include a vacuum tank installed between the vacuum tube and the vacuum pump to remove water contained in the air discharged from the vacuum tube.

The supply unit is connected to the degassing tank through a connection pipe to fill a pressure tank filled with degassed water, a discharge pipe installed on one side of the pressure tank to discharge degassed water, and a pressure tank installed inside the pressure tank and expanded to the outside to apply pressure to the degassed water It may include an airbag to apply, and an air supply unit for supplying air into the airbag.

The airbag may be installed in the center of the bottom of the pressure tank, maintain a constant distance from the inner surface of the pressure tank, and may have a structure extending in an axial direction of the pressure tank.

The airbag may have a rectangular cross-sectional structure.

The airbag may have a cylindrical cross-sectional structure.

The airbag may be formed of a rubber or silicone material.

The airbag may have a thickness in the range of 1.5 mm to 3.5 mm.

The air supply unit may include an air tube installed at the bottom of the pressure tank and connected to the inside of the airbag, and a compressor connected to the air tube and supplying high-pressure air through the air tube.

As described above, according to this embodiment, it is possible to completely block the contact between the compressed air for supplying the degassed water and the degassed water, thereby preventing air from entering the degassed water again in the process of supplying the sample.

By spraying water to remove air more effectively, high-quality degassed water can be produced.

By preventing contact with air, it is possible to increase the purity of the degassed water to stably supply high-quality degassed water. Accordingly, it is possible to increase the precision of the test.

1 is a schematic view showing a degassed water supply device according to the present embodiment.
2 and 3 are schematic cross-sectional views showing the expansion tube of the degassed water supply device according to the present embodiment.

Hereinafter, embodiments of the present invention will be described in detail. However, this is presented as an example, and the present invention is not limited thereto, and the present invention is only defined by the scope of the claims to be described later. The embodiments to be described below may be modified in various forms without departing from the concept and scope of the present invention. Wherever possible, identical or similar parts are denoted by the same reference numerals in the drawings.

The terminology used below is for the purpose of referring to specific embodiments only, and is not intended to limit the present invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite. The meaning of "comprising," as used herein, specifies a particular characteristic, region, integer, step, operation, element and/or component, and other specific characteristic, region, integer, step, operation, element, component, and/or group. It does not exclude the existence or addition of

Hereinafter, preferred embodiments of the present invention will be described. However, the following examples are only preferred examples of the present invention, and the present invention is not limited thereto.

1 schematically shows the configuration of a degassed water supply device according to this embodiment.

As shown in Figure 1, the supply device of this embodiment, the main tank 10 for receiving and providing water, a deaeration unit 20 for removing air from the supplied water connected to the main tank 10, degassing It may include a supply unit 30 connected to the base 20 and supplied to a place of use by applying pressure to the degassed water supplied from the degassing unit 20 in a non-contact state with air.

Accordingly, water may be supplied to the degassing unit 20 from the main tank 10 and supplied to the supply unit 30 after degassing, and may be supplied to the tester while maintaining the degassing state without contact with air.

In the main tank 10, an inlet pipe 11 for supplying water and a pneumatic pipe 12 for providing pneumatic pressure for water transport are installed at the upper end. An on/off valve may be installed on one side of the inlet pipe 11 and the pneumatic pipe 12 . Raw water is supplied into the main tank 10 through the inlet pipe 11 .

The pneumatic tube 12 may supply air into the main tank 10 according to, for example, driving of a compressor (not shown) to form a high pressure inside the main tank 10 . A vent pipe 13 for discharging air may be further installed at the upper end of the main tank 10 . The vent pipe 13 discharges the internal air as water is filled into the main tank 10 .

A supply pipe 14 is installed at the lower end of the main tank 10 and is connected to the degassing tank 21 . The internal pressure of the main tank 10 is increased by the air supplied through the pneumatic tube 12 . Accordingly, the water stored in the main tank 10 may be supplied to the degassing unit 20 through the supply pipe 14 .

The degassing unit 20 is connected to the degassing tank 21 and the supply pipe 14 where the water is degassed, and is disposed inside the degassing tank 21 to spray the water supplied through the supply pipe 14 in the form of a spray nozzle. (22), a vacuum tube 23 connected to the degassing tank 21, and a vacuum pump 24 installed in the vacuum tube 23 to apply a vacuum pressure to the inside of the degassing tank 21 to remove air from water. have.

The degassing tank 21 is connected to the main tank 10 through the supply pipe 14 . A supply pipe 14 may be installed at the upper end of the degassing tank 21 . A connection pipe 25 connected to the supply unit 30 to transfer water to the supply unit 30 may be installed at the bottom of the degassing tank 21 .

The injection nozzle 22 connected to the supply pipe 14 is disposed on the inner upper portion of the degassing tank 21 . The spray nozzle 22 may spray water by scattering it in a spray form over a wide area. Water sprayed from the spray nozzle 22 is stored in the degassing tank 21 .

The spray nozzle 22 is applicable to any structural surface that can be sprayed by scattering water in the form of a spray, and can be variously modified.

In this way, water is sprayed in the form of a spray through the injection nozzle 22 and supplied to the degassing tank 21, so that it is possible to further increase the removal efficiency of air from water.

That is, water is supplied to the degassing tank 21 while being scattered in the form of small drops through the spray nozzle 22 . The air contained in the water can be more easily removed by supplying the water in a small size compared to that when the water is supplied in a large amount at one time. Accordingly, it is possible to maximize the degassing efficiency of water.

The degassed water from which air is removed by the vacuum pressure of the degassing tank 21 while being sprayed from the spray nozzle 22 falls to the bottom of the degassing tank 21 and is stored.

A vacuum tube 23 for forming a vacuum pressure may be installed on one side of the upper end of the degassing tank 21 . A vacuum gauge 26 for detecting the vacuum pressure of the degassing tank 21 may be installed on one side of the vacuum tube 23 . As the vacuum pump 24 is driven, air is discharged from the inside of the degassing tank 21 through the vacuum tube 23 , and the inside of the degassing tank 21 can be formed into a vacuum.

As a vacuum pressure is formed in the degassing tank 21 , air is discharged from the water supplied into the degassing tank 21 to produce degassed water. Air discharged from the water is discharged through the vacuum tube (23).

In this embodiment, the degassing unit 20 is connected between the vacuum tube 23 and the vacuum pump 24 to further include a vacuum tank 27 for removing water contained in the air discharged from the vacuum tube 23 . can

Accordingly, only air from which water has been removed is discharged to the vacuum pump 24 to prevent damage to the equipment including the vacuum pump 24 .

The vacuum tank 27 is a tank structure having a space in which water is accommodated, and a vacuum tube 23 connected to the degassing tank 21 and a vacuum tube 23 connected to the vacuum pump 24 may be installed at the upper end. . When the vacuum pump 24 is driven, a vacuum pressure is formed in the vacuum tank 27 . The vacuum pressure of the vacuum tank 27 is applied to the degassing tank 21 through the vacuum tube 23 , so that the air inside the degassing tank 21 is discharged to the vacuum tank 27 . At this time, water contained in the air discharged from the degassing tank 21 is stored at the bottom of the vacuum tank 27 , and only air is sucked into the vacuum pump 24 .

A drain line 28 for discharging the stored water may be further installed at the bottom of the vacuum tank 27 . The water collected in the vacuum tank 27 may be discharged through the drain line 28 .

The degassed water from which air is removed while passing through the degassing tank 21 may be supplied to the supply unit 30 to be supplied to a place of use such as a tester.

The supply unit 30 of this embodiment has a structure in which the degassed water produced through the degassing tank 21 is supplied to the place of use as it is without contact with air. Accordingly, it is possible to fundamentally prevent the air from re-dissolving into the degassed water in the process of supplying the degassed water.

To this end, the supply unit 30 is connected to the degassing tank 21 and the connection pipe 25 through a pressure tank 31 filled with degassed water, and a discharge pipe 32 installed on one side of the pressure tank 31 to discharge degassed water. , an airbag 33 installed inside the pressure tank 31 and expanded to the outside to apply pressure to the degassed water, and an air supply unit for supplying air into the airbag 33 .

The pressure tank 31 is a tank structure having a hole in which degassed water is accommodated, and is connected to the degassing tank 21 through a connecting pipe 25 . The degassed water produced in the degassing tank 21 is supplied to the pressure tank 31 through the connection pipe 25 .

The degassed water is supplied to the place of use through the discharge pipe 32 by the pressure inside the pressure tank 31 . A pressure gauge 34 for detecting the internal pressure of the pressure tank 31 may be installed on one side of the discharge pipe 32 . In addition, a vent pipe 35 for discharging air inside the pressure tank 31 in the process of filling the degassed water may be further installed on one side of the upper end of the pressure tank 31 .

The air supply unit is installed at the bottom of the pressure tank 31 and connected to the air tube 36 connected to the inside of the air bag 33, and the compressor ( 37) may be included.

The air supply unit may supply high-pressure air into the air bag 33 through the air tube 36 . On one side of the air pipe 36, a vent pipe 38 having a valve to vent the air may be branched and installed if necessary.

Accordingly, when the compressor 37 is driven, high-pressure air is supplied to the air tube 36 so that the air tube 36 expands to the outside. Accordingly, the internal pressure of the pressure tank 31 is increased and the degassed water filled in the pressure tank 31 is supplied to the tester through the discharge pipe 32 by the internal pressure of the pressure tank 31 . In addition, by opening the vent pipe 38 to exhaust the air inside the airbag 33, the inflated airbag 33 can be restored to its original state.

In this embodiment, the airbag 33 is installed at the center of the bottom of the pressure tank 31, maintains a constant distance from the inner surface of the pressure tank 31, and may have a structure that extends long along the axial direction of the pressure tank 31. have.

As such, since the airbag 33 is disposed at the center of the pressure tank 31 , it is possible to evenly apply pressure to the entire interior of the pressure tank 31 when the airbag 33 is inflated.

The lower end of the airbag 33 may be firmly fixed to the bottom of the pressure tank 31 while maintaining airtightness. For example, the lower end of the airbag 33 may be fixedly installed in the pressure tank 31 via a pad (not shown) for airtight maintenance.

The airbag 33 has six surfaces including a side surface, a bottom surface, and an upper surface are sealed to form one closed space.

As shown in FIG. 2 , the airbag 33 may have a cylindrical cross-sectional structure.

In this structure, the shape of the airbag 33 is the same as that of the pressure tank 31 having a cylindrical cross-sectional structure, so that the airbag 33 can be uniformly inflated toward the entire inner circumferential surface of the pressure tank 31 . Accordingly, it is possible to evenly apply the inflation pressure of the airbag 33 to the inside of the pressure tank 31 .

Alternatively, the airbag 33 may have a rectangular cross-sectional structure as shown in FIG. 3 .

When the airbag 33 has a rectangular cross-sectional structure, there is an advantage in that it is easy to manufacture compared to a cylindrical structure.

The airbag 33 may be formed of an elastic material that can be elastically deformed by air pressure. For example, the airbag 33 may be formed of rubber, silicone, or the like.

In this embodiment, the airbag 33 may be formed to a thickness of 1.5 mm to 3.5 mm. When the thickness of the airbag 33 is smaller than 1.5 mm, the rigidity against high pressure is not sufficient, and thus the airbag 33 may be damaged during the pressurization of the degassed water. When the thickness of the airbag 33 exceeds 3.5 mm, the airbag 33 is not properly elastically deformed and it is difficult to apply a desired pressure.

With the above structure, the airbag 33 is elastically deformed as the internal pressure of the airbag 33 increases by the high-pressure air supplied from the air supply unit. The airbag 33 is elastically deformed to inflate to the outside. As the airbag 33 expands, the pressure inside the pressure tank 31 increases.

Accordingly, the degassed water filled in the pressure tank 31 may be supplied to the tester through the discharge pipe 32 at high pressure according to the inflation of the airbag 33 .

In this process, the air applying pressure to the inside of the pressure tank 31 is supplied only to the airbag 33 , so that it does not come into direct contact with the degassed water filled in the pressure tank 31 . Accordingly, even if the degassed water is supplied using the compressed air by the compressor 37, air does not enter the degassed water again. Accordingly, the degassed water produced in the degassing tank 21 can be supplied at a high pressure to the tester and the like as it is in the degassed state.

When the conventional compressed air is used to supply degassed water at high pressure, the compressed air supplied to the tank comes into contact with the degassed water and the air enters the degassed water.

As such, the supply device of this embodiment can supply the manufactured degassed water to the tester at high pressure without contact with air, so that high-quality degassed water can be stably supplied to perform a more accurate test.

As described above, although exemplary embodiments of the present invention have been illustrated and described, various modifications and other embodiments may be made by those skilled in the art. All such modifications and other embodiments are intended to be contemplated and included in the appended claims without departing from the true spirit and scope of the present invention.

10: main tank 11: inlet pipe
12: pneumatic pipe 13,35,38: bent pipe
14: supply pipe 20: degassing unit
21: degassing tank 22: injection nozzle
23: vacuum tube 24: vacuum pump
25: connection pipe 27: vacuum tank
28: drain line 30: supply part
31: pressure tank 32: discharge pipe
33: air bag 36: air tube
37: Compressor

Claims (4)

A degassing unit for removing air from the water supplied from the main tank, including a main tank receiving and providing water, a degassing tank connected to the main tank and configured to degas water, and a degassing unit connected to the degassing unit and supplied from the degassing unit It includes a supply part that supplies degassed water to a place of use by applying pressure in a non-contact state with air,
The supply unit is connected to the degassing tank through a connection pipe to fill a pressure tank filled with degassed water, a discharge pipe installed on one side of the pressure tank to discharge degassed water, installed inside the pressure tank and expanded to the outside to apply pressure to the degassed water A degassed water supply device comprising: an airbag to apply; and an air supply unit for supplying air into the airbag to inflate the airbag. The method of claim 1,
The deaeration unit is connected to a supply pipe connected between the deaeration tank and the main tank, a spray nozzle connected to the supply pipe and disposed inside the deaeration tank to spray water supplied through the supply pipe in a spray form, and the deaeration tank. A vacuum tube, a degassed water supply device including a vacuum pump installed in the vacuum tube to remove air from the water by applying a vacuum pressure to the inside of the degassing tank. delete The method of claim 1,
The air supply unit includes an air tube installed at the bottom of the pressure tank and connected to the inside of the airbag, and a compressor connected to the air tube and supplying high-pressure air through the air tube.

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