JP2014079726A - Method and device of deaerating foam-containing liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and device of deaerating a foam-containing liquid for taking out the liquid content in a deaerated state by: conducting a pressed-pressurized foam-containing liquid through a flow passage formed in a multiple annular tube shape; displacing the foam content in liquid in an expansively opened state by superposing the long and adjacent foam content; separating the liquid content and the gas content by expanding the foam-containing liquid in the horizontal direction to the axial center after coagulating the foam-containing liquid once in the center; and removing the gas content by an exhaust mechanism under atmospheric pressure after discharge.SOLUTION: The method of deaerating the foam-containing liquid includes: a foam-containing liquid pressure feeding process of pressure feeding the foam-containing liquid; a one- or multi-layer annular tube rectifying process of rectifying the pressurized-supplied foam-containing liquid into a thin layer in an annular tube shape; a bending/coagulation process of coagulating and horizontally bending the foam-containing liquid on the downstream side of the central axis of an annular tube flow passage of the pressure-fed foam-containing liquid; a gas-liquid separation process of separating foam from the liquid by collecting-expanding the adjacent foam in the foam-containing liquid by forming the foam-containing liquid in the thin layer and expanding it in a circumferential planar shape; an exhaust process under the atmospheric pressure for taking out the foam in the liquid; and a liquid sampling process of collecting exhaust liquid.

Description

  The present invention includes various foods such as milk, soy milk and fruit juice, health supplements or nutrients, pharmaceuticals such as drinks, cosmetics such as facial liquids and hair washing materials, paints, battery pastes, other polymer resins, etc. The present invention relates to a degassing method and apparatus for a bubble-containing liquid that eliminates bubbles mixed in various liquid materials including a viscous liquid material.

  The technical field of using liquids as final products covers a wide range of products, including food, medicine, and polymer chemicals.

  And since it is a liquid product, the bubble which mixes or generate | occur | produces from a physical property, such as a density | concentration and an accuracy, has many problems on quality essentially, and it is inevitable to eliminate.

  Although it may be performed chemically using an antifoaming agent, it often has an adverse effect on the quality control of liquid products and is not general. Therefore, in many cases, a method and an apparatus for defoaming by a mechanical method are used.

  Specifically, a degassing method and apparatus for a foam-containing liquid called a cyclone or a centrifugal separation method are known (see, for example, Patent Document 1 and Patent Document 2).

  Furthermore, regarding the bubble separation device, the bubble-containing liquid is caused to flow from the gap between the rotation shaft of the rotating tank and the surrounding through hole, and the bubbles in the liquid are taken out by flowing down on the guide member on the upper surface of the rotating tank, Further, it is described that the liquid from which bubbles are removed is recovered (for example, see Patent Document 3).

  Furthermore, regarding a vacuum defoaming apparatus used for a coating apparatus, a foam-containing liquid is discharged from a liquid film forming nozzle whose tip is reduced in diameter, and a liquid film having a circular shape in a plan view is formed after colliding with some member, It is described that bubbles in the liquid are taken out by decompression and the liquid from which the bubbles are removed is recovered (for example, see Patent Document 4).

JP 2006-27012 A JP-A-10-43293 JP 57-197004 A JP 2006-122812 A

  In both of Patent Documents 1 and 2 mentioned above, when introducing the foam-containing liquid into the container, the bubbles are separated by swirling in the circumferential direction and arranging a mesh plate as a closing plate in the swirl flow passage. In addition, a cylindrical filter body provided in the center is installed to separate the bubbles and separate them from the liquid, and the deaeration is controlled simply by the mesh size and the size of the filter body. The problem of being inevitable is inevitable.

  The bubble separation device of Patent Document 3 does not have a configuration in which the liquid that has passed through the gap is bent in the direction of the rotation axis.

  Further, the vacuum defoaming device of Patent Document 4 does not have a configuration in which the liquid flows in an annular shape in the liquid film forming nozzle.

  The present invention has been made by paying attention to the above points, and allows the bubble-containing liquid that has been pressed and pressurized to pass through a circumferential tubular channel formed in one or more multi-annular tubular forms. Disperse the bubbles in the long and adjacent bubbles to the expanded state, and after agglomerating directly or in the center, the liquid is expanded horizontally and circumferentially with respect to the axis center. A bubble-containing liquid that effectively separates the air and air bubbles, and after discharge, removes the gas with an exhaust mechanism under atmospheric pressure without using a vacuum intake mechanism, and allows the degassed liquid to be removed. An object of the present invention is to provide a deaeration method and an apparatus therefor.

  The present invention can solve the above problems by providing the following configuration.

(1) A foam-containing liquid pressurizing and supplying step for supplying foam-containing liquid under pressure,
A single-layer or multi-layer ring rectification process capable of thinly rectifying a bubble-containing liquid supplied under pressure into an annular shape;
A bending agglomeration step for aggregating the foamed liquid downstream of the central axis of the annular flow path of the foamed liquid to be supplied under pressure and bending it in the horizontal direction;
A gas-liquid separation step in which a foam-containing liquid is formed into a thin layer and expanded in a circumferential plane to collect and expand adjacent bubbles in the foam-containing liquid to separate them from the liquid,
An exhaust process under atmospheric pressure to extract bubbles in the liquid,
Liquid collection process for collecting exhaust liquid,
A degassing method for a foam-containing liquid, comprising:

(2) a foam-containing liquid pressurizing and supplying mechanism for supplying foam-containing liquid under pressure;
Tubular expansion liquid of a ring-shaped foam-containing liquid between a cylindrical body wall for introducing a foam-containing liquid to be supplied under pressure and a central bulging body formed through a gap and disposed inside Road mechanism,
A bending and aggregating mechanism for collecting the foam-containing liquid downstream of the central axis of the central bulging body and bending it in the horizontal direction;
A circumferentially expanding diffusion mechanism that expands the agglomerated foamed liquid in a circumferential plane to expand the bubbles in the foamed liquid, and can be separated from the liquid;
An atmospheric pressure exhaust mechanism capable of exhausting air bubbles separated from liquid into the atmosphere;
A mechanism for stationary storage of degassed liquid;
A degassing device for a foam-containing liquid, comprising:

  (3) The degassing of the foam-containing liquid according to (2), wherein the foam-containing liquid storage mechanism for introducing and holding the foam-containing liquid is provided in the introduction section of the tubular expanded liquid path mechanism of the foam-containing liquid. apparatus.

  (4) The size of the flow path of the foam-containing liquid formed in the gap of the tubular expanded liquid path mechanism of the foam-containing liquid is provided with a stepped portion so that the downstream side is smaller than the upstream side and the squeezing action is achieved. The degassing device for a foam-containing liquid according to the above (2), characterized in that it can be increased.

  (5) The foam-containing liquid as described in (2) or (4) above, wherein a single-layer or multi-layer flow path of the foam-containing liquid is formed in the gap of the tubular expanded liquid path mechanism of the foam-containing liquid. Deaeration device.

  According to the present invention, a means for pressurizing and transporting the foam-containing liquid, and the flow path width is narrowed by a single or multi-layered circular tube configuration to expand and expand the bubbles in the liquid in the circumferential plane direction, In addition, since the bubbles directly vaporized under atmospheric pressure can be eliminated by the pressure supply means of the foam-containing liquid without using the vacuum suction means, the structure is simple and the assembly is easy, and the foam-containing liquid with particularly low viscosity is used. The entire configuration can be formed easily and incorporated into a production line that requires defoaming and defoaming.

Cross-sectional explanatory drawing of a defoaming apparatus according to the present invention II-II sectional view of FIG. III-III sectional view of FIG.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to examples.

  An embodiment of the present invention will be described below with reference to the drawings.

  Reference numeral 1 denotes a supply pipe of a foam-containing liquid pressurizing and supplying mechanism 2 that pressurizes and supplies the foam-containing liquid, 3 denotes a foam-containing liquid reservoir for introducing and holding the foam-containing liquid, and 4 denotes an annular tube following the foam-containing liquid reservoir 3. FIG. 2 shows a tubular expanded flow path mechanism for the foam-containing liquid, wherein the foam-containing liquid reservoir 3 is formed in the upper part of the hollow cylindrical body 5, and both ends disposed inside the cylindrical body 5 are fixed to the center. This bubble-containing liquid tubular expansion channel mechanism 4 (channel) is formed in a gap g formed between the outer peripheral surface 6a of the central bulging body 6 and the inner peripheral surface 5a of the cylindrical body 5 with the portion bulging and enlarged. ) Is formed.

  A stepped portion 7 is provided in the middle of the central bulging body 6 forming the tubular expansion flow path mechanism (flow path) 4, and the flow path width m of the flow path 4 is changed to be larger or smaller. The squeezing action of the foam-containing liquid is increased to promote the expansion of the internal bubbles. That is, as compared with the upstream side, the downstream side is narrowed to expand and expand the bubbles.

  Moreover, although not shown in figure, the flow path 4 comprised by the gap | interval g can also be set as the multilayer structure which arrange | positions and distributes two or more concentric annular different diameter pipes, and promotes foam expansion.

  Reference numeral 8 denotes a bending and aggregating mechanism of the foam-containing liquid provided in the lower part of the central bulging body 6, and the foam-containing liquid that has passed through the tubular expansion channel mechanism 4 is downstream of the central axis OO of the central bulging body 6. The bending aggregation mechanism 8 of the foam-containing liquid for concentrating and coagulating is constituted. By this bending and aggregating mechanism 8, the bubble-containing liquid having bubbles that have once expanded can be gathered to maintain a ready state for promoting separation and vaporization after being bent.

  Reference numeral 10 denotes a horizontal, flat and flat circumferential expansion / diffusion mechanism formed in the next stage of the bending and aggregating mechanism 8, which is agglomerated in a horizontal direction perpendicular to the center axis OO. A gas-liquid separation channel 11 is formed by enlarging the bubble-containing liquid in a circumferential shape while maintaining a minute interval n. Specifically, a flange 12 that expands circumferentially from the bending and aggregating mechanism 8 of the cylindrical body 5 and an expansion plate 13 that has an interval n in opposition to the flange 12 are provided to be adjustable, A gas / liquid separation / discharge port 14 can be formed at the open end of the gas-liquid separation channel 11 formed by the flange portion 12 and the expansion plate portion 13.

  A hollow chamber 15 surrounds the cylindrical body 5 and the circumferential expansion / diffusion mechanism 10, and a part of the hollow chamber 15 is provided with an exhaust pipe 16 connected to the atmosphere for eliminating bubbles in the bubble-containing liquid. The other of the hollow chambers 15 is provided with a liquid reservoir 17 that can store and hold the defoamed liquid. In the figure, 18 is an outlet for the liquid reservoir 17, 19 is an adjustment screw for finely adjusting the interval n of the circumferential expansion / diffusion mechanism 10, and 20 is for fixing the inner sleeve 9 at the upper end of the central bulging body 6. It is a screw to do.

  The operation will be described based on the above configuration.

  A desired foam-containing liquid is supplied from the supply pipe 1 to the foam-containing liquid reservoir 3 via the foam-containing liquid pressurizing and supplying mechanism 2. Subsequently, the foam-containing liquid is introduced into the tubular expanded flow path mechanism 4 formed between the cylindrical body 5 and the central bulging body 6 in a layered manner, and bubbles in the liquid are stretched and elongated together with the liquid to bend. It is fed to the aggregation mechanism 8.

  Once expanded, the volume is reduced by accumulating in the bending and aggregating mechanism 8 released from the narrow flow path, but the expansion and contraction operation of the bubble is active because the liquid itself is expanded and contracted. It has become.

  Subsequently, the foam-containing liquid is introduced into the flat gas-liquid separation channel 11 to become a thinner layer, and is subjected to a diffusion expansion action in the circumferential direction. Therefore, the bubbles are subjected to a diffusion and expansion action in the direction of the arrow, and the bubbles are subjected to an expansion and expansion action in the direction of the arrow, and the separation action from the liquid is promoted, and the liquid is completely discharged at the separation outlet 14 at the opening end. The separated gas is vaporized and discharged. The gas is exhausted to the outside by the exhaust pipe 16, and only the degassed liquid is stored in the liquid storage portion 17.

  According to the present invention, for removing bubbles in the foam-containing liquid, simply applying the necessary pressure to the foam-containing liquid and supplying the foam-containing liquid to the tubular channel and the planar enlarged channel into the liquid. Since the contained bubbles can be enlarged and manifested, it is extremely beneficial because it is simple in construction and can be easily incorporated into various devices.

  Although one embodiment of the present invention has been described above, the central axis OO is in the vertical direction in the drawing, but can be implemented in a desired state such as an inclination direction.

  The flow path 4 having the configuration of the tubular expansion flow path is formed by a gap g formed between the cylindrical body 5 and the central bulging body 6, and the flow path width between the upstream side and the downstream side at the stepped portion 7. Although m is changed, the stepped portion 7 can be omitted to make the same flow path width m, or the flow path width m can be gradually reduced.

  The present invention aiming at defoaming with respect to various production apparatuses can be carried out in any process.

DESCRIPTION OF SYMBOLS 1 Supply pipe 2 Foam-containing liquid pressurization supply mechanism 3 Foam-containing liquid storage part 4 Tubular expansion flow path mechanism (flow path)
DESCRIPTION OF SYMBOLS 5 Cylindrical body 5a Inner peripheral surface 6 Central bulging body 6a Outer peripheral surface 7 Step part 8 Bending aggregation mechanism 9 Inner sleeve 10 Circumferential expansion diffusion mechanism 11 Gas-liquid separation flow path 12 Gutter part 13 Expansion board part 14 Separation discharge port 15 Hollow chamber 16 Exhaust pipe 17 Liquid reservoir 18 Outlet 19 Adjustment screw 20 Screw n Interval m Channel width g Gap

  The present invention includes various foods such as milk, soy milk and fruit juice, health supplements or nutrients, pharmaceuticals such as drinks, cosmetics such as facial liquids and hair washing materials, paints, battery pastes, other polymer resins, etc. The present invention relates to a degassing method and apparatus for a bubble-containing liquid that eliminates bubbles mixed in various liquid materials including a viscous liquid material.

  The technical field of using liquids as final products covers a wide range of products, including food, medicine, and polymer chemicals.

  And since it is a liquid product, the bubble which mixes or generate | occur | produces from a physical property, such as a density | concentration and an accuracy, has many problems on quality essentially, and it is inevitable to eliminate.

  Although it may be performed chemically using an antifoaming agent, it often has an adverse effect on the quality control of liquid products and is not general. Therefore, in many cases, a method and an apparatus for defoaming by a mechanical method are used.

  Specifically, a degassing method and apparatus for a foam-containing liquid called a cyclone or a centrifugal separation method are known (see, for example, Patent Document 1 and Patent Document 2).

  Furthermore, regarding the bubble separation device, the bubble-containing liquid is caused to flow from the gap between the rotation shaft of the rotating tank and the surrounding through hole, and the bubbles in the liquid are taken out by flowing down on the guide member on the upper surface of the rotating tank, Further, it is described that the liquid from which bubbles are removed is recovered (for example, see Patent Document 3).

  Furthermore, regarding a vacuum defoaming apparatus used for a coating apparatus, a foam-containing liquid is discharged from a liquid film forming nozzle whose tip is reduced in diameter, and a liquid film having a circular shape in a plan view is formed after colliding with some member, It is described that bubbles in the liquid are taken out by decompression and the liquid from which the bubbles are removed is recovered (for example, see Patent Document 4).

JP 2006-27012 A JP-A-10-43293 JP 57-197004 A JP 2006-122812 A

  In both of Patent Documents 1 and 2 mentioned above, when introducing the foam-containing liquid into the container, the bubbles are separated by swirling in the circumferential direction and arranging a mesh plate as a closing plate in the swirl flow passage. In addition, a cylindrical filter body provided in the center is installed to separate the bubbles and separate them from the liquid, and the deaeration is controlled simply by the mesh size and the size of the filter body. The problem of being inevitable is inevitable.

  The bubble separation device of Patent Document 3 does not have a configuration in which the liquid that has passed through the gap is bent in the direction of the rotation axis.

  Further, the vacuum defoaming device of Patent Document 4 does not have a configuration in which the liquid flows in an annular shape in the liquid film forming nozzle.

  The present invention has been made by paying attention to the above points, and allows the bubble-containing liquid that has been pressed and pressurized to pass through a circumferential tubular channel formed in one or more multi-annular tubular forms. Disperse the bubbles in the long and adjacent bubbles to the expanded state, and after agglomerating directly or in the center, the liquid is expanded horizontally and circumferentially with respect to the axis center. A bubble-containing liquid that effectively separates the air and air bubbles, and after discharge, removes the gas with an exhaust mechanism under atmospheric pressure without using a vacuum intake mechanism, and allows the degassed liquid to be removed. An object of the present invention is to provide a deaeration method and an apparatus therefor.

  The present invention can solve the above problems by providing the following configuration.

(1) A foam-containing liquid pressurizing and supplying step for supplying foam-containing liquid under pressure,
The bubble-containing liquid supplied under pressure is rectified so that it becomes one or more layers in an annular flow path formed between the cylindrical wall of the cylindrical body and the interior member provided inside the cylindrical body. collar rectification step be distributed to,
Bending aggregating step of bending in the horizontal direction together with coagulating foamed liquid downstream of the central axis of the collar passage foamed liquid to be supplied under pressure,
A gas-liquid separation step in which a foam-containing liquid is formed into a thin layer and expanded in a circumferential plane to collect and expand adjacent bubbles in the foam-containing liquid to separate them from the liquid,
An exhaust process under atmospheric pressure to extract bubbles in the liquid,
Liquid collection process for collecting exhaust liquid,
A degassing method for a foam-containing liquid, comprising:

(2) a foam-containing liquid pressurizing and supplying mechanism for supplying foam-containing liquid under pressure;
An annular tubular foam-containing liquid between a cylindrical body wall for introducing a foam-containing liquid to be supplied under pressure and an interior member that is formed through the gap and disposed inside the cylindrical wall . a pipe-like fluid channel mechanism,
A bending and aggregating mechanism for collecting the foam-containing liquid at the lower part of the interior member and bending it in the horizontal direction;
A circumferentially expanding diffusion mechanism that expands the agglomerated foamed liquid in a circumferential plane to expand the bubbles in the foamed liquid, and can be separated from the liquid;
An atmospheric pressure exhaust mechanism capable of exhausting air bubbles separated from liquid into the atmosphere;
A mechanism for stationary storage of degassed liquid;
A degassing device for a foam-containing liquid, comprising:

(3) said that the introduction of the tube-shaped liquid channel mechanism of bubble-containing liquid characterized by comprising providing a foamed liquid reservoir for introducing holding the foamed liquid (2) degassing of the bubble-containing liquid according apparatus.

(4) The size of the flow path of the foamed liquid which is formed at the gap of the tube-shaped liquid channel mechanism of bubble-containing liquid, a narrow squeezing action to reduce the downstream side to the upstream side provided with a stepped portion The degassing device for a foam-containing liquid according to the above (2), characterized in that it can be increased.

(5) The gap between the tube-shaped liquid channel mechanism of bubble-containing liquid, wherein, characterized in that to not more by forming a flow path of a multilayer foamed liquid (2) or (4) foamed liquid according Deaeration device.

According to the present invention, a means for pressurizing and transporting the foam-containing liquid, and the flow path width is narrowed by a single or multi-layered circular tube configuration to expand and expand the bubbles in the liquid in the circumferential plane direction, In addition, since the bubbles directly vaporized under atmospheric pressure can be eliminated by the pressure supply means of the foam-containing liquid without using the vacuum suction means, there is no degassing of flavors such as flavors and cosmetics in food, and the quality is improved. It is easy to assemble and easy to assemble, especially for foaming liquids with low viscosity. Can be incorporated.

Cross-sectional explanatory drawing of a defoaming apparatus according to the present invention II-II sectional view of FIG. III-III sectional view of FIG.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to examples.

  An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a supply pipe of a foam-containing liquid pressurizing and supplying mechanism 2 that pressurizes and supplies the foam-containing liquid, 3 denotes a foam-containing liquid reservoir for introducing and holding the foam-containing liquid, and 4 denotes an annular tube following the foam-containing liquid reservoir 3. shows the foamed liquid in the tube-shaped flow channel mechanism, the upper portion of the hollow cylindrical body 5 the bubble-containing liquid storage portion 3 is formed, the center and both ends fixed to be disposed inside of the cylinder 5 pipe-shaped flow path of the bubble-containing liquid to the gap g formed between the portion and the inner peripheral surface 5a of the outer circumferential surface 6a and the cylindrical body 5 of the central bulging body 6 corresponding to the interior member of the bulging enlarged configuration A mechanism 4 (flow path) is formed.

Then, the provided step portion 7 in the middle of the central bulging body 6, in flowing the flow path width m of the flow path 4 is changed to a magnitude for forming a tube-shaped flow channel mechanism (passage) 4 The squeezing action of the foam-containing liquid is increased to promote the expansion of the internal bubbles. That is, as compared with the upstream side, the downstream side is narrowed to expand and expand the bubbles.

  Moreover, although not shown in figure, the flow path 4 comprised by the gap | interval g can also be set as the multilayer structure which arrange | positions and distributes two or more concentric annular different diameter pipes, and promotes foam expansion.

8 shows a bending aggregation mechanism foamed liquid provided in the lower portion of the central bulge body 6, downstream of the foamed liquid which came through a pipe-shaped flow path mechanism 4 of the center axis O-O of the central bulging body 6 The bending aggregation mechanism 8 of the foam-containing liquid for concentrating and coagulating is constituted. By this bending and aggregating mechanism 8, the bubble-containing liquid having bubbles that have once expanded can be gathered to maintain a ready state for promoting separation and vaporization after being bent.

  Reference numeral 10 denotes a horizontal, flat and flat circumferential expansion / diffusion mechanism formed in the next stage of the bending and aggregating mechanism 8, which is agglomerated in a horizontal direction perpendicular to the center axis OO. A gas-liquid separation channel 11 is formed by enlarging the bubble-containing liquid in a circumferential shape while maintaining a minute interval n. Specifically, a flange 12 that expands circumferentially from the bending and aggregating mechanism 8 of the cylindrical body 5 and an expansion plate 13 that has an interval n in opposition to the flange 12 are provided to be adjustable, A gas / liquid separation / discharge port 14 can be formed at the open end of the gas-liquid separation channel 11 formed by the flange portion 12 and the expansion plate portion 13.

  A hollow chamber 15 surrounds the cylindrical body 5 and the circumferential expansion / diffusion mechanism 10, and a part of the hollow chamber 15 is provided with an exhaust pipe 16 connected to the atmosphere for eliminating bubbles in the bubble-containing liquid. The other of the hollow chambers 15 is provided with a liquid reservoir 17 that can store and hold the defoamed liquid. In the figure, 18 is an outlet for the liquid reservoir 17, 19 is an adjustment screw for finely adjusting the interval n of the circumferential expansion / diffusion mechanism 10, and 20 is for fixing the inner sleeve 9 at the upper end of the central bulging body 6. It is a screw to do.

  The operation will be described based on the above configuration.

A desired foam-containing liquid is supplied from the supply pipe 1 to the foam-containing liquid reservoir 3 via the foam-containing liquid pressurizing and supplying mechanism 2. Then foamed liquid is introduced in layers formed in the tube-shaped flow channel mechanism 4 between the cylinder 5 and the central bulging body 6, the bubble content in the liquid will expand tensile elongated together with the liquid, bent It is fed to the aggregation mechanism 8.

  Once expanded, the volume is reduced by accumulating in the bending and aggregating mechanism 8 released from the narrow flow path, but the expansion and contraction operation of the bubble is active because the liquid itself is expanded and contracted. It has become.

  Subsequently, the foam-containing liquid is introduced into the flat gas-liquid separation channel 11 to become a thinner layer, and is subjected to a diffusion expansion action in the circumferential direction. Therefore, the bubbles are subjected to a diffusion and expansion action in the direction of the arrow, and the bubbles are subjected to an expansion and expansion action in the direction of the arrow, and the separation action from the liquid is promoted, and the liquid is completely discharged at the separation outlet 14 at the opening end. The separated gas is vaporized and discharged. The gas is exhausted to the outside by the exhaust pipe 16, and only the degassed liquid is stored in the liquid storage portion 17.

According to the present invention, for removing bubbles in the foam-containing liquid, simply applying the necessary pressure to the foam-containing liquid and supplying the foam-containing liquid to the tubular channel and the planar enlarged channel into the liquid. Bubbles contained can be enlarged and manifested, and since there is no particular use of suction means, there is no removal of flavors such as flavors and cosmetics in foods, higher quality is expected, the structure is simple, and various devices It can be extremely useful, such as easy integration into

  Although one embodiment of the present invention has been described above, the central axis OO is in the vertical direction in the drawing, but can be implemented in a desired state such as an inclination direction.

A flow path 4 of the configuration of the pipe-shaped flow path is formed in the gap g formed between the cylinder 5 and the central bulging body 6, the channel width of the upstream side and the downstream side step part 7 Although m is changed, the stepped portion 7 can be omitted to make the same flow path width m, or the flow path width m can be gradually reduced.

  The present invention aiming at defoaming with respect to various production apparatuses can be carried out in any process.

1 feed tube 2 foamed liquid pressure supply mechanism 3 foamed liquid storage portion 4 pipe-shaped flow channel mechanism (flow path)
5 Cylindrical body 5a Inner peripheral surface 6 Central bulging body (interior member)
6a Outer peripheral surface 7 Stepped portion 8 Bending and aggregating mechanism 9 Inner sleeve 10 Circumferential expansion and diffusion mechanism 11 Gas-liquid separation flow path 12 Gutter part 13 Expansion plate part 14 Separation discharge port 15 Hollow chamber 16 Exhaust pipe 17 Liquid storage part 18 Outlet port 19 adjusting screw 20 screw n interval m channel width g gap

(1) A foam-containing liquid pressurizing and supplying step for supplying foam-containing liquid under pressure,
The bubble-containing liquid supplied under pressure is rectified so that it becomes one or more layers in an annular flow path formed between the cylindrical wall of the cylindrical body and the interior member provided inside the cylindrical body. Ring rectification process,
A bending agglomeration step of aggregating the foam-containing liquid below the central axis of the annular flow path of the foam-containing liquid to be supplied under pressure and bending it in the horizontal direction;
A gas-liquid separation step in which a foam-containing liquid is formed into a thin layer and expanded in a circumferential plane to collect and expand adjacent bubbles in the foam-containing liquid to separate them from the liquid,
An exhaust process under atmospheric pressure to extract bubbles in the liquid,
Liquid collection process for collecting exhaust liquid,
A degassing method for a foam-containing liquid, comprising:

Reference numeral 8 denotes a bending and aggregating mechanism of the foam-containing liquid provided at the lower part of the central bulging body 6. The foam-containing liquid that has passed through the tubular flow path mechanism 4 is placed below the central axis OO of the central bulging body 6. A bending aggregation mechanism 8 of the foam-containing liquid for concentrated aggregation is configured. By this bending and aggregating mechanism 8, the bubble-containing liquid having bubbles that have once expanded can be gathered to maintain a ready state for promoting separation and vaporization after being bent.

Claims (5)

A foam-containing liquid pressurizing and supplying step for supplying foam-containing liquid under pressure,
A single-layer or multi-layer ring rectification process capable of thinly rectifying a bubble-containing liquid supplied under pressure into an annular shape;
A bending agglomeration step of aggregating the foamed liquid downstream of the central axis of the annular flow path of the foamed liquid supplied under pressure and bending it in the horizontal direction;
A gas-liquid separation step in which a foam-containing liquid is formed into a thin layer and expanded in a circumferential plane to collect and expand adjacent bubbles in the foam-containing liquid to separate them from the liquid,
An exhaust process under atmospheric pressure to extract bubbles in the liquid,
Liquid collection process for collecting exhaust liquid,
A degassing method for a foam-containing liquid, comprising: A foam-containing liquid pressurizing and supplying mechanism for supplying foam-containing liquid under pressure;
Tubular expansion liquid of a ring-shaped foam-containing liquid between a cylindrical body wall for introducing a foam-containing liquid to be supplied under pressure and a central bulging body formed through a gap and disposed inside Road mechanism,
A bending and aggregating mechanism for collecting the foam-containing liquid downstream of the central axis of the central bulging body and bending it in the horizontal direction;
A circumferentially expanding diffusion mechanism that expands the agglomerated foamed liquid in a circumferential plane to expand the bubbles in the foamed liquid, and can be separated from the liquid;
An atmospheric pressure exhaust mechanism capable of exhausting air bubbles separated from liquid into the atmosphere;
A mechanism for stationary storage of degassed liquid;
A degassing device for a foam-containing liquid, comprising:   The degassing device for a foam-containing liquid according to claim 2, wherein a foam-containing liquid reservoir for introducing and holding the foam-containing liquid is provided at the introduction portion of the tubular expanded liquid path mechanism for the foam-containing liquid.   The size of the flow path of the foam-containing liquid formed in the gap of the tubular expanded liquid channel mechanism of the foam-containing liquid can be increased by reducing the downstream side with respect to the upstream side by increasing the squeezing action. The degassing device for a foam-containing liquid according to claim 2, wherein   5. A degassing device for foamed liquid according to claim 2 or 4, wherein a flow path of one or more foamed liquids is formed in the gap of the tubular expanded liquid path mechanism of the foamed liquid.

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