CN114341051A - Beverage supply nozzle - Google Patents
Beverage supply nozzle Download PDFInfo
- Publication number
- CN114341051A CN114341051A CN202080059686.5A CN202080059686A CN114341051A CN 114341051 A CN114341051 A CN 114341051A CN 202080059686 A CN202080059686 A CN 202080059686A CN 114341051 A CN114341051 A CN 114341051A
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- China
- Prior art keywords
- carbonated water
- resistance
- tubular body
- resistor
- wall surface
- Prior art date
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- 235000013361 beverage Nutrition 0.000 title claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 156
- 230000002265 prevention Effects 0.000 claims abstract description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 38
- 239000001569 carbon dioxide Substances 0.000 claims description 19
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 19
- 229920003002 synthetic resin Polymers 0.000 claims description 19
- 239000000057 synthetic resin Substances 0.000 claims description 19
- 238000011144 upstream manufacturing Methods 0.000 claims description 14
- 230000003746 surface roughness Effects 0.000 claims description 12
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 10
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 description 17
- 238000000926 separation method Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 235000014171 carbonated beverage Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D1/00—Apparatus or devices for dispensing beverages on draught
- B67D1/08—Details
Landscapes
- Devices For Dispensing Beverages (AREA)
Abstract
A beverage supply Nozzle (NZ) for discharging high-pressure carbonated water after depressurizing the carbonated water by a multi-structure resistance body (2) arranged inside a tubular body (1), wherein in order to prevent the resistance body (2) from moving downward by the high-pressure carbonated water introduced from a carbonated water introducing member (3), a stopper (1a) serving as a drop prevention member for preventing the drop of the resistance body (outer resistance body (21)) is arranged between the hollow tubular body (1) and the resistance body (outer resistance body (21)) positioned on the outermost side in the radial direction among the multi-structure resistance bodies (2), and the drop of the resistance body (2) is prevented by the stopper (1 a).
Description
Technical Field
The present invention relates to a beverage supply nozzle in a beverage supply device such as a beverage dispenser or a cup dispenser, and more particularly to a beverage supply nozzle for ejecting carbonated water generated in the beverage supply device.
Background
For example, in a beverage dispenser that mixes and sells one type of slurry selected from among a plurality of different types of slurries (concentrated liquids) with carbonated water, or with diluted water such as cold water, a carbonator that mixes cold water with carbon dioxide to produce carbonated water is provided inside the beverage dispenser, and the carbonated water produced by the carbonator is injected into a beverage container from a beverage supply nozzle. Fig. 8 shows a conventional example of such a beverage supply nozzle, and fig. 8 is a schematic cross-sectional view showing a flow path system to which the beverage supply nozzle is applied and the beverage nozzle.
As shown in fig. 8, a conventional beverage supply nozzle 100 includes a hollow tubular body 101 and a resistance member 102 inserted into the tubular body 101, and the tubular body 101 and the resistance member 102 are molded articles of synthetic resin. A carbonated water introducing member 103 having a function of a cap member is attached to an upper end of the tubular body 101, and a lower end of the tubular body 101 is formed as an ejection port 104. Further, a cold water introduction passage 105 is formed in the middle region of the tubular body 101 so as to protrude in the radially outer direction, and a mesh 106 as a filter member is disposed inside the tubular body 101. The resistance body 102 is formed as a solid polygonal column made of a polygonal column-shaped body having a polygonal cross section (for example, a dodecagon), and the head of the resistance body 102 is formed to protrude in a conical shape. The resistance body 102 is inserted into the hollow portion of the tubular body 101 so that each edge portion of the polygonal column contacts the inner wall surface of the tubular body 101, and a gap (pressure reducing portion) is formed between the flat surface portion of the resistance body 102 of the polygonal column and the cylindrical inner wall surface of the tubular body 101. In this way, a plurality of gaps as pressure relief portions are formed in the circumferential direction of the cross-sectional circle. The carbonated water produced by mixing cold water and carbon dioxide in carbonator 107 is supplied to carbonated water introducing member 103 via solenoid valve V1, and cold water obtained by cooling tap water from city tap water pipe in a cooling water tank is supplied to cold water introducing passage 105 via solenoid valve V2.
In this configuration, when a beverage selection button of a carbonated beverage system provided on an operation panel of the beverage dispenser is pressed, the solenoid valve V1 is excited at a predetermined timing, and carbonated water produced by mixing cold water and carbon dioxide by the carbonator 107 is pressure-fed to the carbonated water introducing member 103. The carbonated water pressure-fed to the carbonated water introduction member 103 is uniformly dispersed along the conical head of the resistance body 102 and then discharged from the discharge port 104 through a gap formed between the flat surface portion of the resistance body 102 and the inner wall surface of the tubular body 101. When a beverage selection button of a carbonated beverage system provided on an operation panel of the beverage dispenser is pressed, the solenoid valve V2 is excited at a predetermined timing, and cold water is ejected from the ejection port 104 of the tubular body 101 through the cold water introduction passage 105 (for example, patent document 1). According to the invention disclosed in patent document 1, since the carbonated water pressure-fed to the carbonated water introduction member 103 is depressurized when passing through the gap formed between the flat surface portion of the polygonal column of the resistance member 102 and the inner wall surface of the tubular body 101, it is possible to prevent a decrease in the gas amount due to the separation of carbon dioxide, and since the head portion of the resistance member 102 is formed in a conical shape, the carbonated water is guided to the gap (pressure reducing portion) by flowing dispersedly around without generating a vortex when it strikes the head portion of the resistance member 102, so that the separation of carbon dioxide due to the generation of a vortex can be suppressed, which is excellent in the above point.
Further, since the smaller the gap (pressure reducing portion) formed between the flat surface portion of the polygonal column of the resistance member 102 and the inner wall surface of the tubular body 101, the more the decrease in the gas amount due to the separation of carbon dioxide at the time of passing carbonated water can be prevented, the larger the number of the edges of the resistance member 102 made of the polygonal column, the smaller the gap (pressure reducing portion) can be. However, when the gap (pressure reducing portion) is reduced, the speed of passage of carbonated water through the resistive member 102 is reduced. The passage speed is proportional to the discharge time of the carbonated water discharged from the beverage supply nozzle 100, and the lower the passage speed, the longer the discharge time of a predetermined amount of carbonated water discharged from the beverage supply nozzle 100 for sale. To solve this problem, it is known that: the resistance body is divided in a radial direction to have a double structure including an inner resistance body formed in a solid polygonal column and an outer resistance body formed in a hollow tubular shape and having an outer wall formed in a polygonal shape, and the outer wall of the inner resistance body, the inner wall of the outer resistance body into which the inner resistance body is inserted, the outer wall of the outer resistance body, and the inner wall of the tubular body into which the outer resistance body is inserted have slopes whose diameters gradually decrease from an upstream side into which carbonated water is introduced toward a downstream side from which carbonated water is discharged, and a gap formed between the inner wall surface of the tubular body and a flat surface portion of the outer wall of the outer resistance body and a gap formed between the flat surface portion of the inner resistance body and the inner wall surface of the outer resistance body are pressure reducing portions, respectively (for example, patent document 2). According to the invention disclosed in patent document 2, the gap (pressure reducing portion) is reduced by providing the double structure in which the resistive member is divided in the radial direction, and the speed of passage of carbonated water through the gap (pressure reducing portion) is reduced, but the number of gaps (pressure reducing portions) is increased, so that the amount of carbonated water passing through per unit time can be increased, and therefore a desired amount of carbonated water can be discharged within a predetermined discharge time. Further, there is an advantage that the inner resistor, the outer resistor inserted into the inner resistor, and the tubular body inserted into the outer resistor have a slope in which the diameter gradually decreases from the upstream side, into which carbonated water is introduced, toward the downstream side, from which carbonated water is discharged, and thus the assembly can be performed in a nested manner (Japanese patent publication No. れ).
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2012-144272
Patent document 2: japanese patent laid-open publication No. 2016-172580
Disclosure of Invention
Problems to be solved by the invention
The carbonated water pressure-fed to the carbonated water introducing member 103 shown in fig. 8 acts to expand the tubular body 101 and also acts to press the resistance body 102 downward. In this case, in the beverage supply nozzle in which the resistance body and the tubular body are assembled in a nested manner with an inclination as in the invention described in patent document 2, there is a possibility that the expansion of the tubular body and the case where the friction resistance between the resistance body and the tubular body is small due to the resistance body and the tubular body being made of synthetic resin interact with each other, and a problem that the resistance body moves downward with respect to the tubular body may occur. When the range of the slope provided on the inner wall of the tubular body (the vertical dimension) is set to be equal to the vertical dimension of the outer wall of the outer resistor, the downward movement of the resistor reduces the area of the pressure reducing portion, and the downward movement of the resistor means that the carbonated water introduction passage is enlarged, and when the carbonated water introduction passage is enlarged, the pressure of the carbonated water is reduced, and the gas amount is reduced. In order to prevent the resistance member from moving downward, it is conceivable to use a synthetic resin material having a large surface roughness as the synthetic resin material of the tubular body and the resistance member to increase the frictional resistance between the resistance member and the tubular body, but in this case, there is a problem that carbonated water collides with the surface (uneven surface) of the synthetic resin material to separate carbon dioxide.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a beverage supply nozzle that solves the above problems, and that can suppress a decrease in the gas amount in a pressure reducing section and can secure a predetermined discharge time.
Means for solving the problems
In order to achieve the above object, the invention according to claim 1 provides a beverage supply nozzle that depressurizes carbonated water at a high pressure generated by mixing cold water and carbon dioxide and discharges the carbonated water, the beverage supply nozzle comprising: a carbonated water introducing member to which the high-pressure carbonated water is supplied; a hollow tubular body that ejects carbonated water introduced through the carbonated water introduction member from the other end ejection port; and a resistance body disposed inside the tubular body, the resistance body being in a form in which a plurality of gaps as pressure reducing portions are formed in a cross-sectional circumferential direction between an inner wall surface of the tubular body and an outer wall surface of the resistance body radially adjacent to the inner wall surface of the tubular body, a cross section of one of the outer wall surface and the inner wall surface of the tubular body being formed in a polygonal shape, and a cross section of the other of the outer wall surface and the inner wall surface of the tubular body being formed in a circular shape, the resistance body being in a multiple structure divided in the radial direction and being in a form in which a plurality of gaps as pressure reducing portions are formed in a circumferential direction between the radially adjacent inner wall surface and the outer wall surface, a cross section of one of the radially adjacent inner wall surface and the outer wall surface being formed in a polygonal shape, and a cross section of the other of the radially adjacent inner wall surface and the outer wall surface being formed in a circular shape, the hollow tubular body and the multi-structured resistance body each have a slope gradually decreasing in diameter from an upstream side, at which carbonated water is introduced, toward a downstream side, at which carbonated water is discharged, and a falling prevention member for preventing the falling of the resistance body is provided between the hollow tubular body and the resistance body located on the outermost side in the radial direction among the multi-structured resistance bodies.
The invention according to claim 2 is the beverage supply nozzle according to claim 1, wherein the drop preventing member is a stopper provided on an inner wall surface of the hollow tubular body and engaged with a resistance body located on an outermost side in a radial direction among the resistance bodies having a multi-structure to prevent the drop of the resistance body.
The invention according to claim 3 is the beverage supply nozzle according to claim 1, wherein the hollow tubular body and the resistance member are formed of a synthetic resin having a surface roughness of 0.1 μm or less.
The invention according to claim 4 is characterized in that, in the beverage supply nozzle according to claim 3, the synthetic resin constituting the hollow tubular body and the resistance member is ABS resin.
The invention according to claim 5 is the beverage supply nozzle according to claim 1, wherein the carbonated water introduction member is provided with a carbonated water introduction pipe protruding upward, a lower portion of the carbonated water introduction member is formed as an expanded portion expanded in a funnel shape about an axis of the carbonated water introduction pipe, the head portion of the multi-structured resistance member is conical as a whole in accordance with an inclination angle of the expanded portion of the carbonated water introduction member, and the head portion of the resistance member located on an inner side among the multi-structured resistance members is provided with a step in a manner of sinking relative to the head portion of the resistance member located on an outer side.
ADVANTAGEOUS EFFECTS OF INVENTION
According to claim 1 of the present invention, there is provided a beverage supply nozzle for discharging high-pressure carbonated water generated by mixing cold water and carbon dioxide, after the carbonated water is depressurized, the beverage supply nozzle comprising: a carbonated water introducing member to which the high-pressure carbonated water is supplied; a hollow tubular body that ejects carbonated water introduced through the carbonated water introduction member from the other end ejection port; and a resistance body disposed inside the tubular body, the resistance body being in a form in which a plurality of gaps as pressure reducing portions are formed in a cross-sectional circumferential direction between an inner wall surface of the tubular body and an outer wall surface of the resistance body radially adjacent to the inner wall surface of the tubular body, a cross section of one of the outer wall surface and the inner wall surface of the tubular body being formed in a polygonal shape, and a cross section of the other of the outer wall surface and the inner wall surface of the tubular body being formed in a circular shape, the resistance body being in a multiple structure divided in the radial direction and being in a form in which a plurality of gaps as pressure reducing portions are formed in a circumferential direction between the radially adjacent inner wall surface and the outer wall surface, a cross section of one of the radially adjacent inner wall surface and the outer wall surface being formed in a polygonal shape, and a cross section of the other of the radially adjacent inner wall surface and the outer wall surface being formed in a circular shape, the hollow tubular body and the multi-structured resistance member each have a slope with a diameter gradually decreasing from an upstream side, at which carbonated water is introduced, toward a downstream side, at which carbonated water is discharged, and a falling prevention member for preventing the falling of the resistance member is provided between the hollow tubular body and the resistance member located outermost in the radial direction among the multi-structured resistance members in the beverage supply nozzle, for example, a stopper described in claim 2 is provided to be engaged with the resistance member located outermost in the radial direction among the multi-structured resistance members, and thereby the falling of the resistance member can be prevented by the falling prevention member even when the resistance member attempts to move downward by high-pressure carbonated water introduced from the carbonated water introduction member, and therefore, there is provided an effect that the pressure portion can suppress the decrease in the gas amount by which the pressure decreases and can secure the throughput of carbonated water per unit time A beverage delivery nozzle.
Further, according to the beverage supply nozzle of claim 3, in the beverage supply nozzle of claim 1, the hollow tubular body and the resistance member are formed of a synthetic resin having a surface roughness of 0.1 μm or less, for example, an ABS resin as described in claim 4, and thus, a synthetic resin having a surface roughness of 0.1 μm or less, for example, an ABS resin can be used as the synthetic resin material constituting the resistance member and the hollow tubular body, which are prevented from being lowered by the lowering prevention member, and an effect is obtained that a beverage supply nozzle capable of suppressing a decrease in the gas amount of the pressure reducing portion and ensuring the throughput of carbonated water per unit time can be provided.
In the beverage supply nozzle according to claim 5 of the present invention, in the beverage supply nozzle according to claim 1, the carbonated water introduction member is formed with a carbonated water introduction pipe protruding upward, the lower portion of the carbonated water introduction member is formed with an expanded portion expanded in a funnel shape about an axis of the carbonated water introduction pipe, the head portion of the multi-structured resistance member is formed in a conical shape as a whole in accordance with an inclination angle of the expanded portion of the carbonated water introduction member, and the head portion of the resistance member located inside of the multi-structured resistance member is provided with a step in a form in which the head portion of the resistance member located outside is depressed, thereby providing the following effects. That is, in the case of a multi-structure in which only the resistance member having the conical head portion is divided in the radial direction, since the inclined surface on the head portion side of the multi-structure resistance member is in a conical shape as a whole, the inclined surface on the head portion side of the multi-structure resistance member is continuously formed at a constant inclination angle, the inflow of carbonated water introduced through the carbonated water introducing member is interrupted along the conical inclined surface of the head portion of the resistance member, and the pressure is rapidly changed at the initial stage of the introduction of the carbonated water, and the gas amount is decreased due to the separation of carbon dioxide (when the introduction passage is filled with the carbonated water, the carbonated water uniformly flows into the pressure reducing portions (gaps) formed in the circumferential direction of the cross section, and the carbonated water continuously flows into each pressure reducing portion (gap), therefore, a decrease in the amount of gas due to the separation of carbon dioxide does not occur), and on the other hand, the head of the resistance body located on the inner side among the resistance bodies having the multiple structure has a step in a form of sinking relative to the head of the resistance body located on the outer side, and the head of the resistance body having the multiple structure is conical as a whole in accordance with the inclination angle of the extension portion of the carbonated water introduction member, whereby even in the initial stage of the introduction of carbonated water, the carbonated water continuously flows into the pressure reduction portion (gap) in a form of blocking the carbonated water flowing on the conical inclined surface by the step at the pressure reduction portion (gap) on the circumference of the concentric circle on the central axis side of the resistance body, and therefore, a rapid change in pressure can be suppressed, that is, a decrease in the amount of gas due to the separation of carbon dioxide can be suppressed.
Drawings
Fig. 1 shows a beverage supply nozzle according to an embodiment of the present invention, fig. 1 (a) is a side view showing an overall structure of the beverage supply nozzle, and fig. 1 (b) is a cross-sectional view taken along line a-a of fig. 1 (a).
Fig. 2 shows the tubular body of the beverage supply nozzle of fig. 1, wherein fig. 2 (a) is a perspective view of the tubular body viewed obliquely from above, and fig. 2 (b) is a cross-sectional view of the tubular body.
Fig. 3 shows a carbonated water introducing member of the beverage supply nozzle of fig. 1, wherein fig. 3 (a) is a perspective view of the carbonated water introducing member as viewed from obliquely above, and fig. 3 (B) is a cross-sectional view taken along line B-B of fig. 3 (a).
Fig. 4 shows an outer resistor constituting the resistor of the beverage supply nozzle of fig. 1, wherein fig. 4 (a) is a perspective view of the outer resistor as viewed obliquely from below, fig. 4 (b) is a side view of the outer resistor, and fig. 4 (C) is a cross-sectional view taken along line C-C of fig. 4 (b).
Fig. 5 is a side view of an inner resistor constituting the resistor of the beverage supply nozzle of fig. 1.
Fig. 6 is a sectional view showing the resistor of fig. 1.
Fig. 7 shows a modification of the inner resistor constituting the resistor of fig. 5, in which fig. 7 (a) is a perspective view of the inner resistor as viewed obliquely from below, and fig. 7 (b) is a cross-sectional view taken along line D-D of fig. 7 (a).
Fig. 8 is a schematic cross-sectional view showing a flow path system to which a conventional beverage supply nozzle is applied and a beverage nozzle.
Detailed Description
Hereinafter, a beverage supply nozzle in a beverage supply device such as a beverage dispenser according to an embodiment of the present invention will be described in detail with reference to the drawings.
As shown in fig. 1, the beverage supply nozzle NZ includes a hollow tubular body 1, a resistance body 2 inserted into the hollow tubular body 1, and a carbonated water introduction member 3 integrally attached to an upper portion of the hollow tubular body 1.
The hollow tubular body 1 is a synthetic resin molded article formed of an ABS resin having a surface roughness of 0.1 μm or less. The upstream side of the tubular body 1 is formed in a circular shape in cross section, and the upstream side of the tubular body 1 is formed in a relatively large diameter as a housing space of the resistor 2, while the downstream side of the tubular body 1 is formed in a funnel shape and reaches the small-diameter ejection port 11. The upstream side of the relatively large-diameter tubular body 1 includes a connection region SS for the carbonated water introducing member 3 and a resistor housing region RS for housing the resistor 2. The resistance body housing region RS of the tubular body 1 is a portion against which the outer wall of the resistance body 2 housed therein abuts, and the upper side of the resistance body housing region RS is a connection region SS. In the connection region SS, a screw groove 12 (see also fig. 2) that is screwed to a screw groove 331 (see also fig. 3) provided in the outer wall 33 of the carbonated water introducing member 3 is formed.
The resistor housing area RS of the tubular body 1 is formed with a slope such that the diameter of the lower end side (downstream side from which carbonated water is discharged) of the resistor housing area RS is smaller than the diameter of the upper end side (upstream side from which carbonated water is introduced) of the resistor housing area RS. That is, as shown in fig. 2 (b), the inner wall and the outer wall of the tubular body 1 in the resistor housing region RS have a slope (for example, a slope of 3 degrees) that gradually decreases in diameter from the upstream side of the resistor housing region RS toward the downstream side of the resistor housing region RS with respect to the vertical line VL.
As shown in fig. 2 (b), a stopper 1a protruding inward is integrally formed in a lower end region of the resistance body housing region RS in the inner wall surface of the tubular body 1. The stopper 1a constitutes a descent prevention member. The stopper 1a is engaged with a lower edge of a resistance body 2 described later to prevent the resistance body 2 from moving downward. The stoppers 1a are arranged on the inner wall surface of the tubular body 1 in a circumferentially dispersed manner (3 stoppers are arranged at intervals of 120 degrees in this example).
Further, a meniscus-shaped cold water passage 113 partitioned from the carbonated water passage 111 by a partition wall 112 having a meniscus-shaped (japanese: three ケ moon-shaped) cross section is formed on the lower portion side of the tubular body 1, and a cold water introduction passage (not shown) is installed in a form positioned by the positioning protrusion 114 in a form in which cold water is supplied to the cold water passage 113 through an opening formed in the outer wall of the cold water passage 113. In addition, reference numeral 115 is a mounting piece for mounting to the beverage maker.
The carbonated water introducing member 3 functions as a cap that closes the hollow tubular body 1. As shown in fig. 3, the carbonated water introducing member 3 includes an annular housing groove 300 for housing the O-ring 30 (see fig. 1) and a thread groove 331 screwed to the thread groove 12 provided in the tubular body 1. The carbonated water introducing member 3 is integrated with the tubular body 1 by being screwed to the upper portion of the tubular body 1 through an O-ring 30. The carbonated water inlet member 3 is formed with a carbonated water inlet pipe 31 projecting upward, and the lower portion of the carbonated water inlet member 3 is formed with an expanded portion 32 expanding in a funnel shape about the axis of the carbonated water inlet pipe 31. The inclination angle of the funnel-shaped flared portion 32 is matched with the inclination angle of a cone of a conical head portion of the resistance body 2 described later, and the flared portion 32 and the head portion of the resistance body 2 form an introduction passage, and the pressure of carbonated water is constant because the interval between the introduction passages is constant. A high-pressure carbonated water supply line generated by the carbonator 107 shown in fig. 8 is connected to the carbonated water introduction line 31 via the solenoid valve V1. In this embodiment, the carbonated water introducing member 3 is formed in a hollow shape having a space between the carbonated water introducing pipe line 31 and the outer wall 33, but the carbonated water introducing member 3 is not limited to a hollow shape and may be a solid shape.
The resistor 2 is divided into a plurality of segments in the radial direction, and in this embodiment, is divided into an outer resistor 21 and an inner resistor 22 to form a double structure. The outer resistor 21 and the inner resistor 22 are synthetic resin molded articles formed of ABS resin having a surface roughness of 0.1 μm or less.
As shown in fig. 4, the outer resistor 21 is formed in a hollow tubular shape. The cross section of the inner wall of the hollow tubular outer resistor 21 is formed in a circular shape, and the cross section of the outer wall of the hollow tubular outer resistor 21 is formed in a polygonal shape (for example, a regular icosahedron shape). By thus forming the cross section of the outer wall of the outer resistor 21 in a polygonal shape, the outer wall of the outer resistor 21 is provided with a plurality of ridge portions 211 and flat surface portions 212. As shown in fig. 4 (c), the outer wall and the inner wall of the outer resistor 21 have slopes (e.g., slopes of 3 degrees) that gradually decrease in diameter from the upstream side toward the downstream side with respect to the vertical line VL. Here, the diameter of the circle connecting the ridge portions 211 of the upper end portion (head portion) of the outer wall of the outer resistor 21 is set to a diameter that coincides with the diameter of the inner wall of the upper end of the resistor housing area RS of the tubular body 1, and the diameter of the circle connecting the ridge portions 211 of the lower end portion of the outer wall of the outer resistor 21 is set to a diameter that coincides with the diameter of the inner wall of the lower end of the resistor housing area RS of the tubular body 1. A stopper 21a protruding inward is integrally formed on a lower portion of the inner wall of the outer resistor 21. The stopper 21a is engaged with a lower edge of an inner resistor 22 described later to prevent the inner resistor 22 from moving downward. The stoppers 21a are arranged on the inner wall surface of the outer resistor 21 in a circumferentially dispersed manner (3 stoppers are arranged at intervals of 120 degrees in this example). The stopper 21a is not necessarily required to prevent the inner resistor 22 from moving downward even when the outer resistor 21 and the inner resistor 22 are made of a synthetic resin having a surface roughness of 0.1 μm or less, which is made of ABS resin.
The upper end (head) of the outer resistor 21 is formed as an inclined surface 213 that narrows from the outer wall toward the inner wall, and the lower end of the outer resistor 21 is formed as an inclined surface 214 that narrows from the outer wall toward the inner wall. The inclination angle of the inclined surface 213 of the upper end portion (head portion) is configured to be equal to the inclination angle of the inclined surface of the conical head portion 220 of the inner resistor 22 described later. An inclined surface 215 (see fig. 4 c) inclined in the opposite direction to the inclined surface 213 is formed on the inner wall side of the upper end portion (head portion) of the outer resistor 21, and a connection portion between the inclined surface 213 and the inclined surface 215 forms a ridge as a watershed.
As shown in fig. 5, the inner resistor 22 includes a conical head 220. The inclination angle of the conical head 220 is matched with the inclination angle of the funnel-shaped flared portion 32 of the carbonated water inlet member 3. The outer wall of the inner resistor 22 has a polygonal cross section (for example, a regular twenty-first polygon), and the inner resistor 22 is formed as a polygonal column including a plurality of ridge portions 221 and a flat portion 222. The outer wall of the inner resistor 22 has a slope (e.g., a slope of 3 degrees) that gradually decreases in diameter from the upstream side toward the downstream side with respect to the vertical line VL. The diameter of a circle connecting the upper ends of the ridge portions 221 of the outer wall of the inner resistor 22 (in other words, the bottom of the conical head portion 220) is set to be equal to the diameter of the upper end of the inner wall of the outer resistor 21, that is, the diameter of the lower side of the inclined surface 215 forming the peak of the upper end of the outer resistor 21. Therefore, the diameter of the circle connecting the upper ends of the ridge portions 221 of the outer wall of the inner resistor 22 (the bottom of the conical head 220) is set to be slightly smaller than the diameter of the peak of the upper end of the inner wall of the outer resistor 21.
In this embodiment, the inner resistor 22 is formed to be solid, but may be hollow as shown in the modification of fig. 7. The inner resistor 22A shown in fig. 7 is formed as a hollow body with a cross-shaped reinforcing wall 223 remaining therein, and has the same configuration as the inner resistor 22 shown in fig. 5 except for this point. That is, the inner resistor 22A has a conical head 220A and is formed in a polygonal column shape having a plurality of ridge portions 221A and flat surface portions 222B on the outer wall. The outer wall of the inner resistor 22A has a gradient (for example, a gradient of 3 degrees) that gradually decreases in diameter from the upstream side toward the downstream side with respect to the vertical line VL.
As shown in fig. 6, the resistance body 2 is integrated by inserting the inner resistance body 22 from the upper end opening of the outer resistance body 21 having a hollow tubular shape in a nested manner. The inner resistor 22 inserted into the outer resistor 21 is pushed in until the lower edge of the inner resistor 22 abuts against a stopper 21a provided on the inner wall surface of the outer resistor 21 and protruding inward. In this case, in the process of descending until the lower edge of the inner resistor 22 comes into contact with the stopper 21a of the outer resistor 21, the plurality of ridges 221 of the inner resistor 22 gradually come into contact with the inner wall of the outer resistor 21, and at the time when the lower edge of the inner resistor 22 comes into contact with the stopper 21a of the outer resistor 21, the plurality of ridges 221 of the inner resistor 22 come into close contact with the inner wall of the outer resistor 21. In a state where the lower edge of the inner resistor 22 is in contact with the stopper 21a of the outer resistor 21, the inclination angle of the inclined surface of the upper end portion (head portion) of the outer resistor 21 is made to coincide with the inclination angle of the inclined surface of the conical head portion 220 of the inner resistor 22, and therefore, the head portion of the resistor 2 is formed into a conical shape as a whole, and the inclination angle of the conical head portion is made to coincide with the inclination angle of the funnel-shaped enlarged portion 32 of the carbonated water inlet member 3. In this case, since the bottom of the conical head portion 220 of the inner resistor 22 is positioned at the upper end of the inner wall of the outer resistor 21 (the lower side of the inclined surface 215 forming the peak at the upper end of the outer resistor 21), there is a step in which the bottom of the conical head portion 220 of the inner resistor 22 is depressed with respect to the peak at the upper end of the outer resistor 21 (the connection portion between the inclined surface 215 and the inclined surface 213) (see fig. 6).
In the resistance body 2 in which the inner resistance body 22 is inserted into the hollow outer resistance body 21 in a nested manner and integrated as described above, a plurality of gaps (not shown) are formed in the circumferential direction of the cross-sectional circle between all the flat surface portions (outer wall surfaces) 222 of the inner resistance body 22 and the inner wall surface of the outer resistance body 21, and these plurality of gaps formed in the circumferential direction constitute the pressure reducing portion, as described in patent document 2.
The resistance element 2 thus assembled is inserted into the hollow tubular body 1 from the upper end opening of the tubular body 1 in a nested manner, and is attached to the resistance element housing area RS. The resistance body 2 inserted into the hollow tubular body 1 is pushed in until the lower edge of the outer resistance body 21 constituting the resistance body 2 abuts on a stopper 1a provided on the inner wall surface of the hollow tubular body 1 and protruding inward. Here, the position of the stopper 1a provided in the lower end region of the resistance body housing region RS in the inner wall of the tubular body 1 is set to a position where the stopper 1a engages with the lower edge of the outer resistance body 21 constituting the resistance body 2 in a state where the ridge portion of the resistance body 2 (the ridge portion 211 of the outer wall of the outer resistance body 21) is in close contact with the inner wall surface of the tubular body 1 and the resistance body 2 is fixed to the tubular body 1 when the resistance body 2 is inserted into the tubular body 1 in a nested manner. Therefore, in the process of lowering until the lower end of the outer resistor 21 comes into contact with the stopper 1a of the hollow tubular body 1, the plurality of ridge portions 211 of the outer resistor 21 gradually come into contact with the inner wall of the hollow tubular body 1, and the plurality of ridge portions 211 of the outer resistor 21 come into close contact with the inner wall of the hollow tubular body 1 at the time when the lower edge of the outer resistor 21 comes into contact with the stopper 1a of the hollow tubular body 1. When the resistance body 2 is inserted into the tubular body 1 in a nested manner and integrated as described above, a plurality of gaps (not shown) are formed in the circumferential direction of the cross-sectional circle between all the flat surface portions of the resistance body 2 (all the flat surface portions 212 of the outer resistance body 21) and the inner wall surface of the tubular body 1, and these gaps formed in the circumferential direction constitute the pressure reducing portion, as described in patent document 2.
In the beverage supply nozzle NZ having this configuration, the carbonated water pumped to the carbonated water introduction pipe line 31 (see fig. 1) is uniformly dispersed along the conical head 220 of the resistive member 2 (inner resistive member 22), and then discharged from the discharge port 11 through a gap (pressure reducing portion) formed between all the flat surface portions 222 of the inner resistive member 22 and the inner wall surface of the outer resistive member 21 and a gap (pressure reducing portion) formed between all the flat surface portions 212 of the resistive member 2 (outer resistive member 21) and the inner wall surface of the tubular member 1.
Here, it has been found through experiments by the inventors that, although the tubular body 1, the outer resistor 21, and the inner resistor 22 are made of a synthetic resin material and carbonated water impacts the surface (uneven surface) of the synthetic resin material to cause separation of carbon dioxide, the separation of carbon dioxide in the case of being formed of an ABS resin having a surface roughness of 0.1 μm or less is less than the separation of carbon dioxide in the case of a synthetic resin material such as a PA resin, a PPE resin, or a PP resin having a surface roughness of more than 0.1 μm. In addition, in the case of being formed of an ABS resin having a surface roughness of 0.1 μm or less, since the frictional resistance between the tubular body 1 and the outer resistor 21 is small and the frictional resistance between the outer resistor 21 and the inner resistor 22 is small, the downward movement of the outer resistor 21 and the inner resistor 22 is promoted by the pressure applied to the outer resistor 21 and the inner resistor 22 by the carbonated water pumped from the carbonated water introduction pipe 31 and acting on the outer resistor 21 and the inner resistor 22 so as to move the outer resistor 21 and the inner resistor 22 downward, but the downward movement of the outer resistor 21 and the inner resistor 22 is prevented by the stopper 1a provided on the inner wall of the tubular body 1 and the stopper 21a provided on the outer resistor 21. Therefore, ABS resin having a surface roughness of 0.1 μm or less can be used as the synthetic resin material constituting the resistor 2 and the hollow tubular body 1, and a decrease in the gas amount in the pressure reducing portion can be suppressed.
In addition, in the beverage supply nozzle NZ of this embodiment, the head portion of the resistance body 2 has a conical shape corresponding to the inclination angle of the expanded portion of the carbonated water introduction member as a whole, and has a step in a form in which the bottom portion of the conical head portion 220 of the inner resistance body 22 is depressed with respect to the peak of the upper end portion of the outer resistance body 21, so that even in the initial stage of introducing carbonated water from the carbonated water introduction pipe 31, the carbonated water continuously flows into the pressure reducing portion (gap) in a form in which the carbonated water flowing on the conical inclined surface is blocked by the step at the plurality of pressure reducing portions (gaps) formed between the inner resistance body 22 and the outer resistance body 21 in the circumferential direction of the cross-sectional circle, and therefore, a rapid change in pressure can be suppressed, that is, in the case of no step, the inflow of the carbonated water into the pressure reducing portion (gap) becomes interrupted, while the pressure rapidly changes and the gas amount is reduced by the separation of carbon dioxide, since the carbonated water continuously flows into the pressure reducing section (gap), the rapid change in pressure can be suppressed, and the reduction in gas amount by the separation of carbon dioxide can be suppressed.
As described above, in the beverage supply nozzle NZ according to the present embodiment, the carbonated water is depressurized by the resistor 2 and then discharged at a high pressure, the carbonated water being generated by mixing cold water and carbon dioxide, and the beverage supply nozzle NZ includes: a carbonated water introducing member 3 for supplying the high-pressure carbonated water to the carbonated water introducing member 3; a hollow tubular body 1 for ejecting carbonated water introduced through the carbonated water introduction member 3 from the other end ejection port 11; and a resistance body 2 disposed inside the tubular body 1, the resistance body 2 being formed with a plurality of gaps as pressure reducing portions in a circumferential direction between an inner wall surface of the tubular body and an outer wall surface of the resistance body 2 adjacent to the inner wall surface of the tubular body 1 in a radial direction, one of the outer wall surface and the inner wall surface of the tubular body being formed in a polygonal shape in a cross section, and the other of the outer wall surface and the inner wall surface of the tubular body being formed in a circular shape in a cross section, the resistance body 2 being formed with a plurality of gaps as pressure reducing portions in a circumferential direction between a radially adjacent inner wall surface (inner wall surface of the outer resistance body 21) and outer wall surface (outer wall surface of the inner resistance body 22), the radially adjacent inner wall surface (inner wall surface of the outer resistance body 21) and outer wall surface (inner resistance body 22) being formed in a circumferential direction The outer wall surface of the hollow tubular body 1 and the multi-structured resistance body 2 each having a slope in which the diameter gradually decreases from the upstream side, at which carbonated water is introduced, toward the downstream side, at which carbonated water is discharged, in the beverage supply nozzle NZ, a descent prevention member (stopper 1a) for preventing the descent of the resistance body (outer resistance body 21) is provided between the inner wall surface of the hollow tubular body 1 and the resistance body (outer resistance body 21) positioned on the outermost side in the radial direction among the multi-structured resistance bodies 2, whereby the resistance body 2 is intended to move downward even by the high-pressure carbonated water introduced from the carbonated water introduction member 3, since the resistance body 2 can be prevented from descending by the descent preventing member (stopper 1a), the effect of providing the beverage supply nozzle capable of suppressing the decrease in the gas amount of the pressure reducing portion and ensuring the throughput of carbonated water per unit time can be obtained.
In the above embodiment, the stopper 1a provided on the inner wall surface of the hollow tubular body 1 and engaged with the outer resistor 21 located on the outermost side in the radial direction among the resistors 2 of the double structure to prevent the outer resistor 21 from being lowered has been described as a preferred mode of the descent prevention member, but the following configuration may be adopted: a stopper protruding outward is formed on the outer wall of the outer resistor 21, while a groove (groove extending in the vertical direction and becoming deeper downward) for accommodating the stopper of the outer resistor 21 is formed on the inner wall of the tubular body, or a descent preventing member which is formed as a member separate from the hollow tubular body 1, engages with the inner wall surface of the hollow tubular body 1, and prevents the descent of the resistor 2 by being locked in the hollow tubular body 1. In the above embodiment, the resistance body 2 has the double structure including the outer resistance body 21 and the inner resistance body 22, but the resistance body 2 is not limited to the double structure and may have a structure having two or more layers. Further, in the above-described embodiment, the cross section of the inner wall surface of the tubular body is formed in the circular shape, the cross section of the outer wall surface of the outer resistor 21 and the cross section of the outer wall surface of the inner resistor 22 are formed in the polygonal shape, and the cross section of the inner wall surface of the outer resistor 21 is formed in the circular shape, but it is also possible to form the cross section of the inner wall surface of the tubular body in the polygonal shape, the cross section of the outer wall surface of the outer resistor 21 and the cross section of the outer wall surface of the inner resistor 22 in the circular shape, and the cross section of the inner wall surface of the outer resistor 21 in the polygonal shape. Therefore, the beverage supply nozzle of the present invention is not limited to the nozzle described in the embodiment.
Description of the reference numerals
NZ, beverage supply nozzle; 1. a tubular body; 1a, a stopper (anti-descent member); 2. a resistance body; 3. a carbonated water introducing member; 11. an ejection port; 21. an outer resistive body; 21a, a stopper; 22. an inner resistive body; 31. a carbonated water introduction line; 211. 221, a ridge portion; 212. 222, a planar portion.
Claims (5)
1. A beverage supply nozzle which depressurizes carbonated water at high pressure generated by mixing cold water and carbon dioxide and discharges the carbonated water, characterized in that,
the beverage supply nozzle is provided with:
a carbonated water introducing member to which the high-pressure carbonated water is supplied;
a hollow tubular body that ejects carbonated water introduced through the carbonated water introduction member from the other end ejection port; and
a resistance body disposed inside the tubular body, the resistance body being in a form in which a plurality of gaps as pressure reducing portions are formed in a cross-sectional circumferential direction between an inner wall surface of the tubular body and an outer wall surface of the resistance body radially adjacent to the inner wall surface of the tubular body, a cross section of one of the outer wall surface and the inner wall surface of the tubular body being formed in a polygonal shape, and a cross section of the other of the outer wall surface and the inner wall surface of the tubular body being formed in a circular shape,
the resistance body is of a multiple structure divided in a radial direction, and is in a form in which a plurality of gaps as pressure reducing portions are formed in a circumferential direction between inner wall surfaces and outer wall surfaces adjacent in the radial direction, a cross section of one of the inner wall surfaces and the outer wall surfaces adjacent in the radial direction is formed in a polygonal shape, and a cross section of the other of the inner wall surfaces and the outer wall surfaces adjacent in the radial direction is formed in a circular shape,
the hollow tubular body and the multi-structured resistance body each have a slope gradually decreasing in diameter from an upstream side where carbonated water is introduced toward a downstream side where carbonated water is discharged,
a fall prevention member for preventing the fall of the resistance body is provided between the hollow tubular body and the resistance body located on the outermost side in the radial direction among the resistance bodies having a multi-layer structure.
2. The beverage delivery nozzle of claim 1,
the anti-falling component is a stopper which is arranged on the inner wall surface of the hollow tubular body and is engaged with the resistance body which is positioned on the outermost side in the radial direction in the resistance bodies with the multiple structures to stop the falling of the resistance bodies.
3. The beverage delivery nozzle of claim 1,
the hollow tubular body and the resistive element are formed of a synthetic resin having a surface roughness of 0.1 μm or less.
4. The beverage delivery nozzle of claim 3,
the synthetic resin constituting the hollow tubular body and the resistive body is ABS resin.
5. The beverage delivery nozzle of claim 1,
the carbonated water introducing member is provided with a carbonated water introducing pipeline protruding upwards, the lower part of the carbonated water introducing member is formed into an expanding part expanding in a funnel shape with the axis of the carbonated water introducing pipeline as the center, the head part of the resistance body with the multiple structure is in a conical shape with the inclination angle consistent with the expanding part of the carbonated water introducing member on the whole, and the head part of the resistance body positioned at the inner side in the resistance body with the multiple structure sinks relative to the head part of the resistance body positioned at the outer side.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-182784 | 2019-10-03 | ||
| JP2019182784A JP2021059342A (en) | 2019-10-03 | 2019-10-03 | Beverage supply nozzle |
| PCT/JP2020/037007 WO2021065947A1 (en) | 2019-10-03 | 2020-09-29 | Beverage dispensing nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114341051A true CN114341051A (en) | 2022-04-12 |
Family
ID=75336943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080059686.5A Pending CN114341051A (en) | 2019-10-03 | 2020-09-29 | Beverage supply nozzle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2021059342A (en) |
| CN (1) | CN114341051A (en) |
| WO (1) | WO2021065947A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022155900A (en) | 2021-03-31 | 2022-10-14 | 三菱マテリアル株式会社 | Titanium base material, water electrolysis electrode, and solid polymer type water electrolysis device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB803438A (en) * | 1955-12-02 | 1958-10-22 | Gaskell & Chambers Ltd | Improvements in or relating to valves for controlling the delivery of liquids under pressure |
| CN202960140U (en) * | 2012-08-09 | 2013-06-05 | 富士电机株式会社 | Beverage supply device |
| CN105520642A (en) * | 2014-10-16 | 2016-04-27 | 富士电机株式会社 | Multipath valve of beverage supplying device |
| JP2016172580A (en) * | 2015-03-17 | 2016-09-29 | 富士電機株式会社 | Beverage feed nozzle |
| JP2017095162A (en) * | 2015-11-27 | 2017-06-01 | 富士電機株式会社 | Beverage supply nozzle |
| JP2017105478A (en) * | 2015-12-07 | 2017-06-15 | ホシザキ株式会社 | Calcareous water extraction valve |
| JP2018118790A (en) * | 2018-05-07 | 2018-08-02 | 富士電機株式会社 | Beverage supply nozzle |
-
2019
- 2019-10-03 JP JP2019182784A patent/JP2021059342A/en not_active Withdrawn
-
2020
- 2020-09-29 WO PCT/JP2020/037007 patent/WO2021065947A1/en active Application Filing
- 2020-09-29 CN CN202080059686.5A patent/CN114341051A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB803438A (en) * | 1955-12-02 | 1958-10-22 | Gaskell & Chambers Ltd | Improvements in or relating to valves for controlling the delivery of liquids under pressure |
| CN202960140U (en) * | 2012-08-09 | 2013-06-05 | 富士电机株式会社 | Beverage supply device |
| CN105520642A (en) * | 2014-10-16 | 2016-04-27 | 富士电机株式会社 | Multipath valve of beverage supplying device |
| JP2016172580A (en) * | 2015-03-17 | 2016-09-29 | 富士電機株式会社 | Beverage feed nozzle |
| JP2017095162A (en) * | 2015-11-27 | 2017-06-01 | 富士電機株式会社 | Beverage supply nozzle |
| CN106966352A (en) * | 2015-11-27 | 2017-07-21 | 富士电机株式会社 | Beverage supplying mouth |
| JP2017105478A (en) * | 2015-12-07 | 2017-06-15 | ホシザキ株式会社 | Calcareous water extraction valve |
| JP2018118790A (en) * | 2018-05-07 | 2018-08-02 | 富士電機株式会社 | Beverage supply nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021065947A1 (en) | 2021-04-08 |
| JP2021059342A (en) | 2021-04-15 |
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