WO2015087569A1

WO2015087569A1 - Liquid rapid cooling device

Info

Publication number: WO2015087569A1
Application number: PCT/JP2014/067338
Authority: WO
Inventors: 洋司細野; 善典佐藤; 小林　隆秀
Original assignee: 日本軽金属株式会社; アサヒビール株式会社; 株式会社テックスイージー
Priority date: 2013-12-10
Filing date: 2014-06-30
Publication date: 2015-06-18
Also published as: JP2015114025A; JP6077985B2; TW201524367A

Abstract

A liquid rapid cooling device (1) is provided with: a cylindrical cooling pipe (31) that is capable of cooling an outer wall; a cylindrical coat pipe (21), which covers the cooling pipe (31), and which is capable of rotating with a rotation axis (Zr) at the center; and a liquid introducing path (73) that is capable of introducing a liquid into a gap (G) between the outer wall of the cooling pipe (31) and an inner wall of the coat pipe (21). Furthermore, a surface temperature of the outer wall of the cooling pipe (31) is reduced to a temperature equal to or lower than a solidifying point of the liquid. The coat pipe (21) has a spiral protruding section (22) on the inner wall.

Description

Liquid quenching equipment

The present invention relates to a liquid quenching apparatus capable of pouring out at least a part of the liquid in a frozen state.

Conventionally, a device that can dispense a predetermined amount in a state where food such as a beverage is frozen is known. For example, Patent Document 1 discloses a frozen dessert making machine having a cooling cylinder that cools food and a spiral stirring blade that scrapes and stirs the frozen food on the surface of the cooling pipe.

JP 2001-37419 A

However, in Patent Document 1, since the frozen food is stored in the tank, there is a possibility that the freshness is lowered at the time when it is poured out from the tank. For this reason, the aroma etc. may have deteriorated at the time of food provision.

This invention is made in view of said subject, Comprising: It aims at providing the liquid quenching apparatus which can pour out the frozen liquid in a fresh state.

In order to achieve the above object, a liquid quenching apparatus according to the present invention includes a cylindrical cooling pipe that can cool an outer wall, and a cylindrical cooling pipe that covers the cooling pipe and can rotate around a rotation axis. And a liquid introduction path capable of introducing a liquid into a gap between the outer wall of the cooling pipe and the inner wall of the cladding pipe, and the surface temperature of the outer wall of the cooling pipe has a freezing point of the liquid Cooled below, the cladding tube has a spiral convex portion on the inner wall.

Thereby, the liquid introduced into the gap comes into contact with the convex portion and can be gently conveyed along the convex portion. The liquid freezes and adheres to the outer wall of the cooling pipe by contacting the cooling pipe while being gently conveyed. Further, since the cladding tube can rotate, the liquid adhering to the outer wall of the cooling tube is scraped off and conveyed by the convex portion. Then, the frozen liquid is poured into the container. In this way, the liquid quenching apparatus can freeze the liquid immediately before pouring into the container. Therefore, the liquid quenching apparatus according to the present invention can dispense the frozen liquid in a fresh state.

As a desirable mode of the present invention, one end of the liquid introduction path is disposed at one end of the gap, and the other end of the gap is disposed below the one end in the vertical direction. It is preferable. Thereby, in addition to the pressing force by a convex part, a weight can be utilized as force for conveying the frozen liquid. Therefore, the liquid quenching apparatus according to the present invention can more efficiently pour the frozen liquid into the container.

As a desirable aspect of the present invention, it is preferable that the convex portion is provided from one end to the other end in the rotation axis direction in a portion of the inner wall of the cladding tube that faces the outer wall of the cooling tube. The portion where the inner wall of the cladding tube and the outer wall of the cooling tube face each other is a portion where the width is relatively narrow and the liquid is likely to freeze. If the convex portion is provided partway along the rotation axis in the portion of the inner wall of the cladding tube that faces the outer wall of the cooling tube, the frozen liquid may remain in the portion where the convex portion is interrupted and may not be discharged. . On the other hand, in the liquid quenching apparatus according to the present invention, the convex portion is provided from one end to the other end of the portion where the inner wall of the cladding tube and the outer wall of the cooling tube face each other. Can be transported to the outside. For this reason, the liquid quenching apparatus according to the present invention can suppress a situation in which the frozen liquid accumulates in the middle of the gap and is not discharged.

As a desirable aspect of the present invention, the cladding tube is preferably transparent or translucent. Thereby, the operator can visually recognize the gap from the outside. For this reason, the liquid quenching apparatus according to the present invention can make it easy to find a location where a failure occurs during an inspection such as when a failure occurs. Further, the operator can visually recognize a series of states in which the liquid is introduced into the gap, freezes, is scraped off by the spiral convex portion, and is conveyed downward. It is highly possible that the liquid is frozen in an instant and transported by the spiral convex portion is unusual for the operator. Therefore, the liquid quenching apparatus according to the present invention can enhance the palatability by showing a state of pouring the liquid.

As a desirable aspect of the present invention, it is preferable to further include a precooling device that can cool the liquid introduced into the gap in advance. Thereby, since the liquid introduced into the gap from the liquid introduction path has a low temperature in advance, the liquid quenching apparatus can shorten the time until the liquid freezes in the gap. Therefore, the liquid quenching apparatus according to the present invention can more reliably freeze the liquid in the gap.

According to the present invention, it is possible to provide a liquid quenching apparatus capable of pouring frozen liquid in a fresh state.

FIG. 1 is a perspective view of a liquid quenching apparatus according to the present embodiment. FIG. 2 is a schematic diagram schematically showing the A-A ′ cross section in FIG. 1. FIG. 3 is an explanatory diagram illustrating a configuration for rotating the cladding tube. FIG. 4 is a cross-sectional view when the cladding tube is cut along a plane including the rotation axis. FIG. 5 is an enlarged view of a gap formed between the outer wall of the cooling pipe and the inner wall of the cladding pipe in FIG. FIG. 6 is a schematic diagram illustrating the configuration of the control unit. FIG. 7 is a flowchart of a method for dispensing frozen liquid using a liquid quenching apparatus. FIG. 8 is a schematic diagram schematically illustrating the configuration of the liquid quenching apparatus according to the first modification. FIG. 9 is a schematic diagram schematically showing a cross section of the liquid quenching apparatus according to the second modification. FIG. 10 is an explanatory diagram illustrating the shape of the inner cylinder according to the second modification.

Embodiments for carrying out the present invention will be described in detail with reference to the drawings. The present invention is not limited by the contents described in the following embodiments. The constituent elements described below include those that can be easily assumed by those skilled in the art and those that are substantially the same. Furthermore, the constituent elements described below can be appropriately combined. Some components may not be used.

(Embodiment)
FIG. 1 is a perspective view of a liquid quenching apparatus according to the present embodiment. FIG. 2 is a schematic diagram schematically showing the AA ′ cross section in FIG. FIG. 3 is an explanatory diagram illustrating a configuration for rotating the cladding tube. FIG. 4 is a cross-sectional view when the cladding tube is cut along a plane including the rotation axis. FIG. 5 is an enlarged view of a gap formed between the outer wall of the cooling pipe and the inner wall of the cladding pipe in FIG. The outline | summary of the liquid quenching apparatus 1 which concerns on this embodiment is demonstrated using FIGS. In the following description, the direction orthogonal to the rotation axis Zr is simply referred to as the radial direction.

(Liquid quenching device)
The liquid quenching apparatus 1 is an apparatus for pouring an alcoholic beverage in a frozen state, for example. The liquid quenching apparatus 1 includes a housing 100 and a container holding unit 101. A container 91 is installed on the upper surface of the container holding unit 101, and an alcoholic beverage in a frozen state is supplied into the container 91. As shown in FIG. 2, the container holding unit 101 has a weight scale 57 inside. The weight scale 57 can measure the weight of the container 91 placed on the upper surface of the container holding unit 101 and the poured alcoholic beverage. The weight scale 57 is a strain gauge, for example. A strain gauge is a sensor that can detect, as an electrical signal, strain generated by deformation when a load is applied. The target to be poured out by the liquid quenching apparatus 1 is not limited to alcoholic drinks, and may be water, non-alcoholic drinks, or liquid foods such as juice for noodle dishes or dressings. May be.

As shown in FIG. 2, the liquid quenching apparatus 1 includes a cooling pipe 31. The cooling pipe 31 is a cylindrical member that can cool the outer wall. For example, the cooling pipe 31 has a cylindrical shape having end surfaces in the vertical direction, that is, a cylindrical shape having an axial direction in the vertical direction. For example, the cooling pipe 31 is made of stainless steel. The cooling pipe 31 has a cap 32 on the upper end surface, and the upper end surface is closed. The cooling pipe 31 has a bottom surface 31b on the lower end surface, and the lower end surface is closed. The cooling pipe 31 is fixed to the housing 100 by, for example, joining a cap 32 to a bracket 36 protruding from the outer wall of the housing 100 with a screw or the like. The cooling pipe 31 includes a temperature sensor 59 on the inner wall, for example. The temperature sensor 59 can measure the surface temperature of the inner wall of the cooling pipe 31. Further, since the cooling pipe 31 is made of stainless steel, which is a metal, the surface temperature of the inner wall of the cooling pipe 31 is substantially equal to or has a predetermined correlation with the surface temperature of the outer wall of the cooling pipe 31. In the following description, the surface temperature of the outer wall of the cooling pipe 31 and the surface temperature of the inner wall of the cooling pipe 31 are appropriately described as the surface temperature of the cooling pipe 31.

As shown in FIG. 2, the liquid quenching apparatus 1 includes a cladding tube 21. The cladding tube 21 is a cylindrical member that covers the cooling tube 31 and can rotate about the rotation axis Zr. For example, the cladding tube 21 has a cylindrical shape having end faces in the vertical direction, that is, a cylindrical shape having an axial direction in the vertical direction. For example, the cladding tube 21 is made of polycarbonate and is transparent. Further, the inner diameter of the cladding tube 21 is larger than the outer diameter of the cooling tube 31. The cladding tube 21 may be formed of a light-transmitting material instead of being transparent, or may be formed of an opaque material such as a metal.

Further, as shown in FIGS. 2 and 4, the cladding tube 21 has a spiral convex portion 22 on the inner wall. For example, as shown in FIG. 4, the convex portion 22 has a spiral shape with a lower right shoulder when viewed from the inside of the cladding tube 21. For example, the convex portion 22 is formed integrally with the inner wall of the cladding tube 21. Further, as shown in FIG. 5, the radial height L2 of the convex portion 22 is smaller than the width L1 of the gap G formed between the outer wall of the cooling pipe 31 and the inner wall of the cladding pipe 21. For example, the radial height L2 of the convex portion 22 is preferably 50% or more and less than 100% of the width L1 of the gap G. Furthermore, the height L2 is more preferably 95% or more and less than 100% of the width L1. More specifically, in the present embodiment, the radial height L2 of the convex portion 22 is 5 mm, and the width L1 of the gap G is 5.1 mm or more and 5, 2 mm or less. Further, as shown in FIG. 2, the convex portion 22 is provided from one end to the other end in the direction of the rotation axis Zr in the portion of the inner wall of the cladding tube 21 that faces the outer wall of the cooling tube 31. A plurality of convex portions 22 may be formed on the inner wall of the cladding tube 21. Further, the convex portion 22 may have a spiral shape with a lower left shoulder when viewed from the inside of the cladding tube 21, and in this case, the rotation direction of the cladding tube 21 described later is reversed.

The cladding tube 21 includes a gear 23 that is fixed to the upper end portion of the outer wall, and a holding ring 24 that is disposed immediately below the gear 23. The gear 23 is an annular member whose inner diameter is substantially equal to the outer diameter of the cladding tube 21, and is fixed to the cladding tube 21 with an adhesive or the like, for example. The holding ring 24 is, for example, an annular member having an inner diameter larger than the outer diameter of the cladding tube 21 and is fixed to the bracket 26 protruding from the outer wall of the housing 100. Thereby, the cladding tube 21 is supported by the housing 100 via the gear 23, the holding ring 24 and the bracket 26. The gear 23 may be formed integrally with the cladding tube 21.

Since the inner diameter of the cladding tube 21 is larger than the outer diameter of the cooling tube 31, a gap G is generated between the outer wall of the cooling tube 31 and the inner wall of the cladding tube 21 as shown in FIG. The first end G1 that is one end of the gap G is closed by the seal member 33. The seal member 33 is, for example, an O-ring, and prevents foreign matter from entering from the first end G1 of the gap G. Further, in the present embodiment, since the cooling pipe 31 and the cladding pipe 21 have a cylindrical shape having an axial direction in the vertical direction, the second end G2 that is the other end of the gap G is more than the first end G1. Is also arranged below the vertical direction. Even if the cooling pipe 31 and the cladding pipe 21 are cylindrical having an axial direction in an angle with respect to the vertical direction, the second end G2 is more vertical than the first end G1. It will be placed below the direction.

Further, as shown in FIG. 2, the liquid quenching apparatus 1 has an attachment 21 a on the lower side of the cladding tube 21. The attachment 21 a is a cylindrical member as a whole, and includes an attachment part 211, a throttle part 212, and a rectifying part 213. The attachment portion 211 is, for example, an annular member having an inner diameter larger than the outer diameter of the cladding tube 21 and covers a part of the outer wall of the cladding tube 21. The attachment portion 211 is fixed to the bracket 28 protruding from the outer wall of the housing 100. Thereby, attachment 21a is supported by case 100 so that a crevice may be formed between cladding tubes 21. Thereby, even when the cladding tube 21 rotates, the attachment 21a does not rotate. The throttle part 212 is a cylindrical member whose upper end is joined to the attachment part 211. The inner diameter of the throttle portion 212 decreases from the upper end toward the lower end. The rectifying unit 213 is a cylindrical member whose upper end is joined to the lower end of the throttle unit 212. The rectifying unit 213 has a constant inner diameter, and a lower end thereof opens toward the outside of the liquid quenching apparatus 1.

Note that the attachment 21a may not be fixed to the housing 100, and may be fixed to the cladding tube 21, for example. When the attachment 21 a is fixed to the cladding tube 21, for example, the attachment 21 a has a mounting portion 211, which is a female screw member having a thread groove on the inner wall, on the male screw portion provided at the lower end portion of the outer wall of the cladding tube 21. What is necessary is just to fix to the cladding tube 21 by screwing. Further, when the attachment 21 a is fixed to the cladding tube 21, the attachment portion 211 is formed of synthetic rubber, and the attachment 21 a is fixed to the cladding tube 21 by the frictional force between the inner wall of the attachment portion 211 and the outer wall of the cladding tube 21. May be.

As shown in FIG. 3, the cladding tube 21 can rotate about the rotation axis Zr by the driving force of the motor 41. The motor 41 is fixed inside the housing 100 and has a shaft 42. The shaft 42 is joined to the gear 43. The teeth 43 g provided on the side surface of the gear 43 mesh with the teeth 23 g provided on the side surface of the gear 23. Thus, when the motor 41 is driven, the cladding tube 21 rotates about the rotation axis Zr via the shaft 42, the gear 43 and the gear 23. For example, the cladding tube 21 is rotated counterclockwise as viewed from above in the direction of the rotation axis Zr. Since the cladding tube 21 and the convex portion 22 are integrally formed, the convex portion 22 rotates as the cladding tube 21. The convex portion 22 rotates in the same direction as the rotation direction of the cladding tube 21 and rotates at the same rotation speed as the rotation speed of the cladding tube 21. As shown in FIG. 4, the convex portion 22 has a spiral shape with a lower right shoulder when viewed from the inside of the cladding tube 21. For this reason, when an object is present at an arbitrary position in the gap G, when the cladding tube 21 rotates counterclockwise as viewed from above in the direction of the rotation axis Zr, the object Is pushed downward and gradually conveyed downward. As will be described later, the object in the present embodiment is a liquid frozen by the cooling pipe 31.

Further, as described above, since the inner diameter of the holding ring 24 is larger than the outer diameter of the cladding tube 21, the cladding tube 21 can rotate smoothly. As shown in FIG. 2, the cladding tube 21 has a guide ring 25 at a position below the outer wall. The guide ring 25 is an annular member having an inner diameter substantially equal to the outer diameter of the cladding tube 21 and is fixed to the cladding tube 21 with an adhesive or the like, for example. The guide ring 25 is fitted in a groove formed between the two guide plates 27 protruding from the housing 100. Thereby, the cladding tube 21 can rotate more stably.

As shown in FIG. 3, the liquid quenching apparatus 1 has a refrigerant introduction path 71 and a refrigerant discharge path 72. The refrigerant introduction path 71 is a pipe for supplying the refrigerant to the inside of the cooling pipe 31, and is formed of, for example, stainless steel. The refrigerant discharge path 72 is a pipe for discharging the refrigerant from the inside of the cooling pipe 31 to the outside, and is formed of, for example, stainless steel. The refrigerant in the present embodiment is an aqueous solution with a freezing point lowered, for example, salt water that is an aqueous solution of a natural salt. The refrigerant introduction path 71 passes through the bracket 36 and the cap 32 and reaches the vicinity of the bottom surface 31 b inside the cooling pipe 31. The refrigerant introduction path 71 is connected to the refrigerant discharge path 72 via a connection path 74 near the bottom surface 31 b inside the cooling pipe 31. The refrigerant discharge path 72 passes through the cap 32 and the bracket 36 from the vicinity of the bottom surface 31 b inside the cooling pipe 31 and reaches the outside of the cooling pipe 31. The refrigerant may be a sodium chloride aqueous solution, a potassium chloride aqueous solution, an ammonium chloride aqueous solution, or the like. The refrigerant may be a gas or a liquid other than an aqueous solution of a metal salt.

Further, the refrigerant introduction path 71 and the refrigerant discharge path 72 have a reinforcing member 34 protruding from the outer wall. The end of the reinforcing member 34 is fixed to the inner wall of the cooling pipe 31 by welding or the like, for example. Further, the connecting path 74 has a reinforcing member 35 protruding from the outer wall. The end of the reinforcing member 35 is fixed to the bottom 31b of the cooling pipe 31, for example, by welding or the like. Thereby, since the cooling pipe 31, the refrigerant introduction path 71, the refrigerant discharge path 72, and the connection path 74 are connected via the reinforcing

members

34 and 35, the situation where the cooling pipe 31 vibrates in the radial direction is suppressed.

2 and 3, the liquid quenching apparatus 1 has a cooling device 56 for cooling the refrigerant. The cooling device 56 includes a compressor, for example, and can cool the refrigerant. For example, in the present embodiment, the cooling device 56 can cool the refrigerant in a range of −50 ° C. or higher and −10 ° C. or lower. The temperature of the refrigerant can be changed according to the freezing point of the liquid introduced into the gap G described later. The refrigerant introduction path 71 and the refrigerant discharge path 72 are connected to the cooling device 56. The refrigerant cooled by the cooling device 56 is carried to the inside of the cooling pipe 31 by the refrigerant introduction path 71 and cools the cooling pipe 31 by taking heat of the cooling pipe 31. The refrigerant that has received heat from the cooling pipe 31 is carried to the outside of the cooling pipe 31 by the refrigerant discharge path 72 and returned to the cooling device 56. In this way, the refrigerant circulates through the refrigerant introduction path 71, the refrigerant discharge path 72, and the cooling device 56, whereby the surface temperature of the outer wall of the cooling pipe 31 is cooled below the freezing point of the liquid introduced into the gap G described later. The The cooling device 56 may not necessarily cool the refrigerant using a compressor, may cool the refrigerant using a Peltier element, or may cool the refrigerant using liquid nitrogen. Further, the cooling device 56 may be able to cool the temperature of the refrigerant to a temperature outside the range, not limited to −50 ° C. or more and −10 ° C. or less.

In addition, it is desirable that the refrigerant introduction path 71 and the refrigerant discharge path 72 are covered with a heat insulating material at a portion in contact with the air outside the liquid quenching apparatus 1. By doing in this way, it becomes difficult for the heat which external air has to be transmitted to the refrigerant which passes through refrigerant introduction way 71 and refrigerant discharge way 72. For this reason, since the refrigerant introduction path 71 and the refrigerant discharge path 72 can be carried while maintaining the temperature of the refrigerant, the cooling pipe 31 can be efficiently cooled.

2 and 3, the liquid quenching apparatus 1 includes a liquid tank 53 that stores a liquid and a liquid introduction path 73 that can introduce the liquid into the gap G. In the present embodiment, the liquid tank 53 is disposed outside the housing 100 and stores alcoholic beverages. The liquid introduction path 73 is, for example, a pipe formed of silicone. One end of the liquid introduction path 73 is disposed at a first end G1 that is one end of the gap G. For example, the liquid introduction path 73 is disposed so as to penetrate the bracket 36 and the seal member 33 and have one end positioned at the first end G1. Since the liquid introduced into the gap G from the liquid introduction path 73 comes into contact with the convex portion 22, it gradually falls along the convex portion 22. Further, it is desirable that the end portion on the first end portion G1 side of the liquid introduction path 73 is open toward the inner wall of the cladding tube 21. Thereby, the liquid introduced into the gap G from the liquid introduction path 73 is likely to come into contact with the convex portion 22, and is more likely to descend along the convex portion 22.

Further, the liquid quenching apparatus 1 includes a valve 55, a precooling apparatus 54, and a liquid tank connecting portion 75. The other end of the liquid introduction path 73 is connected to one end of the liquid tank connecting portion 75 via the valve 55 and the precooling device 54. For example, the liquid tank connecting portion 75 is disposed on the outer wall of the housing 100 as shown in FIG. The other end of the liquid tank connecting portion 75 is connected to the liquid tank 53 by a liquid supply path 76. For example, the end of the liquid supply path 76 on the liquid tank 53 side is disposed in the liquid inside the liquid tank 53.

The valve 55 is, for example, a ball valve equipped with a stepping motor, and the flow rate of the liquid can be adjusted by adjusting the valve opening degree by the stepping motor. The pre-cooling device 54 includes, for example, a compressor, and can cool the liquid stored in the liquid tank 53 before sending it to the gap G. The liquid quenching device 1 is preferably provided with the precooling device 54, but may not include the precooling device 54.

As shown in FIG. 2, for example, the liquid tank 53 is connected to a pressure cylinder 58 by a gas supply path 77. For example, the pressurizing cylinder 58 contains carbon dioxide inside at a high pressure, and can send carbon dioxide into the liquid tank 53 via the gas supply path 77. The inside of the liquid tank 53 is a sealed space except for a connection portion with other members. For this reason, when carbon dioxide is fed into the liquid tank 53 from the pressure cylinder 58, the internal pressure of the liquid tank 53 increases. When the internal pressure of the liquid tank 53 increases, the liquid level of the liquid stored in the liquid tank 53 is pushed, so that the liquid is sent out of the liquid tank 53 via the liquid supply path 76. Then, the liquid is sent to the pre-cooling device 54 through the liquid tank connecting portion 75. The liquid is cooled to a predetermined temperature by the precooling device 54 and then introduced into the gap G at a flow rate corresponding to the valve opening degree of the valve 55. The gas built in the pressurizing cylinder 58 may be other gas instead of carbon dioxide. Further, the method of sending the liquid stored in the liquid tank 53 to the outside may not be a method using the pressurizing cylinder 58, for example, a method of pumping up and sending the liquid by a pump connected to the liquid tank 53. Also good.

When the liquid in the liquid tank 53 is introduced into the gap G, the cooling pipe 31 is cooled by the refrigerant, and the cladding pipe 21 is rotated by the motor 41. The surface temperature of the cooling pipe 31 is below the freezing point of the liquid introduced into the gap G. The liquid introduced into the gap G freezes by contacting the outer wall of the cooling pipe 31. For example, in the present embodiment, the liquid introduced into the gap G freezes up to a half position in the entire axial length of the cooling pipe 31. The frozen liquid adheres to the outer wall of the cooling pipe 31. Further, since the cladding tube 21 rotates about the rotation axis Zr, the spiral convex portion 22 provided on the inner wall of the cladding tube 21 rotates. The spiral convex portion 22 scrapes and conveys the liquid adhering to the outer wall of the cooling pipe 31 downward. The liquid transported downward is discharged from the second end G2 of the gap G to the attachment 21a side and is rectified by the attachment 21a. Thereafter, the frozen liquid falls from the lower end of the attachment 21 a and is poured out into the container 91.

If the cooling pipe 31 and the cladding pipe 21 have a cylindrical shape having an axial direction in the direction that makes an angle with respect to the vertical direction or a cylindrical shape having an axial direction in the horizontal direction, the liquid introduced into the gap G is gravity. Therefore, there is a possibility that the gap G is biased to the lower part in the vertical direction. On the other hand, in the present embodiment, the cooling pipe 31 and the cladding pipe 21 have a cylindrical shape having an axial direction in the vertical direction, and the liquid introduced into the gap G gradually moves along the spiral convex portion 22. To descend. This makes it difficult for the liquid introduced into the gap G to partially bias in the gap G. For this reason, the liquid quenching apparatus 1 can freeze the liquid introduced into the gap G quickly and uniformly.

Also, if the attachment 21a rotates together with the cladding tube 21, the frozen liquid may be difficult to drop from the lower end of the attachment 21a by being pressed against the inner wall of the attachment 21a by centrifugal force. On the other hand, in this embodiment, when the cladding tube 21 is rotated by the motor 41, the attachment 21a does not rotate. Thereby, the frozen liquid does not receive a centrifugal force inside the attachment 21a. For this reason, the liquid quenching apparatus 1 can make it easy for the frozen liquid to fall from the lower end of the attachment 21a.

Further, it is desirable that the convex portion 22 can more reliably scrape the liquid adhering to the outer wall of the cooling pipe 31. As described above, the radial height L2 of the convex portion 22 is 5 mm, and the width L1 of the gap G is 5.1 mm or more and 5, 2 mm or less. Thereby, the convex part 22 can scrape most of the liquid frozen on the outer wall of the cooling pipe 31.

Also, the liquid quenching apparatus 1 can change the degree of icing of the liquid by adjusting the valve opening degree of the valve 55 and adjusting the flow rate of the liquid introduced into the gap G. For example, when the valve opening degree of the valve 55 increases, the flow rate of the liquid introduced into the gap G increases, so that the liquid is relatively difficult to freeze. For this reason, the frozen liquid when poured out into the container 91 is in a relatively soft state. On the other hand, when the valve opening degree of the valve 55 becomes small, the flow rate of the liquid introduced into the gap G decreases, so that the liquid is relatively easily frozen. For this reason, the frozen liquid when poured out into the container 91 is in a relatively hard state. The liquid quenching apparatus 1 fixes the flow rate of the liquid introduced into the gap G by keeping the valve opening of the valve 55 constant, and controls the flow rate and temperature of the refrigerant, thereby reducing the degree of icing of the liquid. You may change it. Thus, the degree of icing of the liquid may be adjusted by controlling the flow rate and temperature of the refrigerant circulated through the refrigerant introduction path 71 and the refrigerant discharge path 72. By controlling the flow rate and temperature of the refrigerant, the liquid quenching apparatus 1 can finely adjust the degree of icing of the liquid. Furthermore, the liquid quenching apparatus 1 controls the flow rate of the liquid introduced into the gap G by adjusting the valve opening degree of the valve 55, and controls both the flow rate of the refrigerant and the temperature of the refrigerant. May be changed.

(Control part)
FIG. 6 is a schematic diagram illustrating the configuration of the control unit. As shown in FIG. 2, the liquid quenching apparatus 1 includes a control unit 51. The control unit 51 is, for example, a PLC (Programmable Logic Controller). The PLC is a control device that changes an output signal to be output in accordance with a change in an input signal that is input. As shown in FIG. 6, the control unit 51 includes an input circuit 51a, a central processing unit (CPU) 51b that is a central processing unit, a memory 51c that is a storage device, and an output circuit 51d. Conditions for changing the output signal are stored as a program in the memory 51c. The program stored in the memory 51c is described by a ladder diagram that symbolizes an electric circuit diagram, for example. Further, the memory 51c stores a set value of the valve opening of the valve 55, a set value of the weight of the liquid poured into the container 91 as a threshold value, and a set value of the surface temperature of the cooling pipe 31. be able to. The CPU 51b compares the input signal with the threshold value according to the program stored in the memory 51c, and changes the output signal according to the comparison result. The control unit 51 can change the condition for changing the output signal by changing the program or setting value stored in the memory 51c.

The set value of the valve opening of the valve 55 and the set value of the weight of the liquid dispensed into the container 91 stored in the memory 51c can be adjusted by the valve setting unit 62 and the weight setting unit 63 connected to the control unit 51. It has become. As shown in FIG. 1, the valve setting unit 62 is arranged on the outer wall of the housing 100, and displays a display unit 62a in which the valve opening degree of the valve 55 is displayed in numbers, and two

push buttons

62b and 62c for moving the numbers up and down. And have. The valve setting unit 62 changes the set value of the valve opening of the valve 55 stored in the memory 51c in accordance with the operation of the

push buttons

62b and 62c, and displays the valve opening as a number on the display unit 62a. The operator can be notified of the set value of the valve opening. The weight setting unit 63 is, for example, a dial disposed on the outer wall of the housing 100 as shown in FIG. The weight setting unit 63 can change the set value of the weight of the liquid poured out into the container 91 that is stored in the memory 51c according to the rotation operation. For example, as the weight setting unit 63 is rotated clockwise, the set value of the weight of the liquid to be poured into the container 91 stored in the memory 51c increases, and the weight setting unit 63 is rotated counterclockwise. The set value of the weight of the liquid poured out into the container 91 stored in the memory 51c becomes smaller. The positions and configurations of the valve setting unit 62 and the weight setting unit 63 are not limited to those described above. For example, the valve setting unit 62 and the weight setting unit 63 may be displayed on a liquid crystal display device with a touch panel. When the valve setting unit 62 and the weight setting unit 63 are displayed on a liquid crystal display device with a touch panel, a finger or the like touches or comes close to the displayed valve setting unit 62 and the weight setting unit 63, so that the valve 55 The set value of the opening and the set value of the weight of the liquid poured out into the container 91 are changed.

As shown in FIG. 2, the control unit 51 is connected to a weight scale 57, a temperature sensor 59, a motor 41, a valve 55, and a cooling device 56. The weight scale 57 can send the measured weight to the control unit 51 as an electrical signal. The temperature sensor 59 can send the measured surface temperature of the cooling pipe 31 to the control unit 51 as an electrical signal. The motor 41 can receive an electric signal from the control unit 51 and can start or stop driving in accordance with the electric signal. The valve 55 receives an electrical signal from the control unit 51, and a stepping motor provided in the valve 55 can be driven to perform an opening / closing operation in accordance with the electrical signal. The electrical signal sent from the control unit 51 to the valve 55 changes according to the set value of the valve opening stored in the memory 51c. The valve 55 can increase or decrease the valve opening according to a change in the electrical signal sent from the control unit 51. The cooling device 56 can receive an electrical signal from the control unit 51 and start or stop cooling. For example, the cooling temperature of the cooling device 56 changes according to the set value of the surface temperature of the cooling pipe 31 stored in the memory 51c. The set value of the surface temperature of the cooling pipe 31 stored in the memory 51c can be changed, for example, by changing a program stored in the memory 51c.

Further, as shown in FIG. 1, the liquid quenching apparatus 1 includes a power switch 60 and an operation switch 61. The control unit 51 is connected to the power switch 60 and the operation switch 61. The power switch 60 and the operation switch 61 are, for example, push buttons. The liquid quenching apparatus 1 is connected to a power source, and when the power switch 60 is pressed, the conduction state with the power source is switched. For example, the liquid quenching apparatus 1 operates the cooling device 56 to cool the refrigerant in the cooling device 56 while the electrical connection with the power source is maintained. The liquid quenching apparatus 1 starts the operation of dispensing the liquid when the operation switch 61 is pressed in a state where the electrical connection with the power source is maintained by the operation of the power switch 60.

(Liquid pouring method)
FIG. 7 is a flowchart of a method for dispensing frozen liquid using a liquid quenching apparatus. The liquid pouring method using the liquid quenching apparatus 1 according to the present embodiment includes a step of starting cooling of the cooling pipe 31 (step S1) and a step of measuring the surface temperature of the cooling pipe 31 using the temperature sensor 59. (Step S2), a step of comparing the surface temperature of the cooling pipe 31 and a threshold value (set value of the surface temperature of the cooling pipe 31) (Step S3), and a step of pouring the frozen liquid into the container 91 ( Step S4), the step of measuring the weight of the liquid poured out into the container 91 using the weighing scale 57 (Step S5), the weight of the liquid poured out into the container 91 and the threshold value (poured into the container 91) (Step S6) and a step of stopping the liquid dispensing (step S7). The liquid quenching apparatus 1 can automatically perform steps S1 to S7 when the operation switch 61 is pressed in a state where the electrical connection with the power source is maintained.

First, the liquid quenching apparatus 1 starts cooling the cooling pipe 31 (step S1). Specifically, when the operation switch 61 is pressed, an electrical signal is sent from the control unit 51 to the cooling device 56. Then, the cooling device 56 that has received the electrical signal from the control unit 51 circulates the refrigerant cooled in the cooling device 56 through the refrigerant introduction path 71 and the refrigerant discharge path 72. As the refrigerant circulates, the cooling pipe 31 starts to be cooled.

Next, the surface temperature of the cooling pipe 31 is measured using the temperature sensor 59 (step S2). For example, the temperature sensor 59 measures the surface temperature of the cooling pipe 31 at regular intervals, and sends the surface temperature as an electrical signal to the control unit 51. The electrical signal sent to the control unit 51 is sent to the CPU 51b via the input circuit 51a. The CPU 51b compares the surface temperature of the cooling pipe 31 sent as an electric signal with the set value of the surface temperature of the cooling pipe 31 stored in the memory 51c as a threshold value.

Next, when the surface temperature of the cooling pipe 31 sent as an electrical signal to the CPU 51b is equal to or higher than a threshold value (set value of the surface temperature of the cooling pipe 31) (step S3, No), the process returns to step S2, and the temperature The sensor 59 measures the surface temperature of the cooling pipe 31 again. If the surface temperature of the cooling pipe 31 sent as an electrical signal to the CPU 51b is lower than the threshold value (set value of the surface temperature of the cooling pipe 31) (step S3, Yes), the process proceeds to step S4.

Next, the valve 55 is opened to introduce liquid into the gap G, and then the frozen liquid is poured into the container 91 shown in FIG. 1 (step S4). Specifically, an electric signal is sent from the output circuit 51d of the control unit 51 to the valve 55 and the motor 41, whereby the valve 55 is opened and the motor 41 is driven. When the valve 55 is opened, the liquid stored in the liquid tank 53 is introduced into the gap G through the precooling device 54. The liquid introduced into the gap G freezes to contact the outer wall of the cooling pipe 31 and adheres to the outer wall of the cooling pipe 31. Further, since the motor 41 is driven, the cladding tube 21 rotates about the rotation axis Zr. Thereby, since the helical convex part 22 rotates, the liquid adhering to the outer wall of the cooling pipe 31 is scraped and conveyed below. The liquid transported downward is discharged from the second end G2 of the gap G to the attachment 21a side and is rectified by the attachment 21a. Thereafter, the frozen liquid falls from the lower end of the attachment 21 a and is poured out into the container 91.

Next, the weight of the liquid poured out into the container 91 is measured using the weight scale 57 (step S5). For example, the weight scale 57 measures the weight of only the container 91 in the steps up to step S5 (for example, step S4) and stores the weight in advance in the memory 51c of the control unit 51. In step S5, the weigh scale 57 measures the weight of the container 91 and the liquid poured into the container 91 at regular intervals, for example, and sends the weight to the control unit 51 as an electrical signal. The electrical signal sent to the control unit 51 is sent to the CPU 51b via the input circuit 51a. The CPU 51b calculates the difference between the weight sent as an electrical signal and the weight of only the container 91 stored in advance in the memory 51c. The difference is the weight of the liquid poured out into the container 91.

Next, when the weight of the liquid poured into the container 91 calculated in step S5 does not exceed a threshold value (a set value of the weight of the liquid poured into the container 91) (No in step S6), the process proceeds to step S5. Returning, the weigh scale 57 again measures the combined weight of the container 91 and the poured liquid. If the weight of the liquid poured into the container 91 calculated in step S5 exceeds a threshold value (set value of the weight of the liquid poured into the container 91) (step S6, Yes), the process goes to step S7. move on.

Next, the valve 55 is closed and the discharge of the liquid is stopped by stopping the rotation of the cladding tube 21 (step S7). Specifically, the valve 55 is closed by sending an electric signal from the output circuit 51 d of the control unit 51 to the valve 55. When the valve 55 is closed, the liquid stored in the liquid tank 53 is not introduced into the gap G. Then, after a predetermined time required for discharging the frozen liquid remaining in the gap G to the outside, an electric signal is sent from the output circuit 51d of the control unit 51 to the motor 41, so that the driving of the motor 41 is stopped. Then, the rotation of the cladding tube 21 stops.

As described above, the liquid quenching apparatus 1 according to the present embodiment includes the cylindrical cooling pipe 31 that can cool the outer wall, and the cylinder that covers the cooling pipe 31 and can rotate around the rotation axis Zr. And a liquid introduction path 73 through which liquid can be introduced into the gap G between the outer wall of the cooling pipe 31 and the inner wall of the cladding pipe 21. Further, the surface temperature of the outer wall of the cooling pipe 31 is cooled below the freezing point of the liquid. The cladding tube 21 has a spiral convex portion 22 on the inner wall.

Thereby, since the liquid introduced into the gap G comes into contact with the convex portion 22, it can be gently conveyed along the convex portion 22. The liquid is frozen and adheres to the outer wall of the cooling pipe 31 by contacting the cooling pipe 31 while being gently conveyed. Moreover, since the cladding tube 21 can rotate, the liquid adhering to the outer wall of the cooling tube 31 is scraped by the convex part 22 and conveyed. Then, the frozen liquid is poured out into the container 91. Thus, the liquid quenching apparatus 1 can freeze the liquid immediately before pouring into the container 91. Therefore, the liquid quenching apparatus 1 according to the present embodiment can dispense the frozen liquid in a fresh state.

Further, in the present embodiment, one end of the liquid introduction path 73 is disposed at the first end G1 that is one end of the gap G. The second end G2, which is the other end of the gap G, is disposed below the first end G1 in the vertical direction. Thereby, in addition to the pressing force by the convex part 22, weight can be utilized as force for conveying the frozen liquid. Therefore, the liquid quenching apparatus 1 according to the present embodiment can pour the frozen liquid into the container 91 more efficiently.

Further, in the present embodiment, the convex portion 22 is provided from one end to the other end in the direction of the rotation axis Zr in the portion of the inner wall of the cladding tube 21 that faces the outer wall of the cooling tube 31. The portion where the inner wall of the cladding tube 21 and the outer wall of the cooling tube 31 face each other is a portion where the width is relatively narrow and the liquid is likely to freeze. If the convex portion 22 is provided partway along the rotation axis Zr in the portion of the inner wall of the cladding tube 21 that faces the outer wall of the cooling tube 31, the frozen liquid stays and is discharged at the portion where the convex portion 22 is interrupted. There is a possibility of disappearing. On the other hand, since the convex part 22 is provided over the other end from the one end of the said part, the liquid quenching apparatus 1 can convey the frozen liquid more reliably toward the exterior. For this reason, the liquid quenching apparatus 1 can suppress a situation in which the frozen liquid accumulates in the middle of the gap G and is not discharged.

In this embodiment, the cladding tube 21 is transparent or translucent. Thereby, the operator can visually recognize the gap G from the outside. For this reason, the liquid quenching apparatus 1 can make it easy to find a location where a failure occurs during an inspection such as when a failure occurs. Further, the operator can visually recognize a series of states in which the liquid is introduced into the gap G, freezes, and is scraped off by the spiral convex portion 22 and conveyed downward. It is highly likely that the state in which the liquid freezes instantaneously and is conveyed by the spiral convex portion 22 is unusual for the operator. Therefore, the liquid quenching apparatus 1 can improve palatability by showing a mode that liquid is poured out.

Moreover, the liquid quenching apparatus 1 according to the present embodiment includes a precooling apparatus that can cool the liquid introduced into the gap in advance. Thereby, since the liquid introduced into the gap G from the liquid introduction path 73 has a low temperature in advance, the liquid quenching apparatus 1 can shorten the time until the liquid freezes in the gap G. Therefore, the liquid quenching apparatus 1 can more reliably freeze the liquid in the gap G.

Further, in the conventional technology such as Patent Document 1, since it is difficult to pour out all the frozen food stored in the tank, the food remaining on the bottom of the tank may be wasted. . On the other hand, the liquid quenching apparatus 1 according to the present embodiment can open and close the valve 55 according to information sent from the weighing scale 57 by the control unit 51. For this reason, the liquid quenching apparatus 1 can pour out a necessary amount of frozen liquid. Therefore, the liquid quenching apparatus 1 can suppress the amount of wasted liquid.

The liquid quenching apparatus 1 may include a cylindrical cover that covers the outer wall of the cladding tube 21 and the attachment 21a. By providing the cover, the liquid quenching apparatus 1 can improve heat insulation and can easily maintain the temperature inside the gap G. For example, the cover is preferably formed of a transparent resin such as polycarbonate. When the cover is transparent, the operator can visually recognize the gap G from the outside through the cover and the cladding tube 21.

In the present embodiment, the cooling pipe 31 and the cladding pipe 21 have a cylindrical shape having an axial direction in the vertical direction, but may have a cylindrical shape having an axial direction in a direction inclined with respect to the vertical direction. However, it may be cylindrical with an axial direction in the horizontal direction. However, as described above, in the case where the cooling pipe 31 and the cladding pipe 21 have a cylindrical shape having an axial direction in the vertical direction or a cylindrical shape having an axial direction in a direction inclined with respect to the vertical direction, the frozen liquid It is desirable in that the weight can be used in addition to the pressing force by the convex portion 22 as a force for conveying the sheet.

(Modification 1)
FIG. 8 is a schematic diagram schematically illustrating the configuration of the liquid quenching apparatus according to the first modification. The liquid quenching apparatus 1A according to Modification 1 is characterized in that the shape of the cooling pipe 31A is different from the cooling pipe 31 of the above-described embodiment. Note that the same components as those described in the above-described embodiment are denoted by the same reference numerals, and redundant description is omitted.

As shown in FIG. 8, the liquid quenching apparatus 1A according to Modification 1 includes a cooling pipe 31A. The cooling pipe 31A is a cylindrical member having an end face in the vertical direction. For example, the cooling pipe 31A is made of stainless steel. The cooling pipe 31A has a constricted portion 31s whose outer diameter gradually decreases downward at the lower end. The lower end surface of the throttle portion 31s is closed by the bottom portion 31bA. The outer wall of the throttle part 31s faces the inner wall of the throttle part 212 of the attachment 21a. Thereby, a gap GA is generated between the outer wall of the throttle portion 31s and the inner wall of the throttle portion 212 of the attachment 21a. The upper end of the gap GA is connected to the gap G, and the lower end of the gap GA is connected to the rectifying unit 213. For example, the width of the gap GA is equal to the width of the gap G.

In the above-described embodiment, since the internal space of the attachment 21a is large, there is a possibility that a fixed amount of liquid frozen in the internal space will pass through the rectifying unit 213. On the other hand, since the liquid quenching apparatus 1A according to Modification 1 has the gap GA, the amount of the frozen liquid that passes through the rectifying unit 213 can be further stabilized. As a result, the frozen liquid is easily poured into the container 91 by a certain amount. Therefore, the liquid quenching apparatus 1 </ b> A according to the modified example 1 can allow the frozen liquid to be placed in the container 91 without gaps.

(Modification 2)
FIG. 9 is a schematic diagram schematically showing a cross section of the liquid quenching apparatus according to the second modification. FIG. 10 is an explanatory diagram illustrating the shape of the inner cylinder according to the second modification. The liquid quenching apparatus 1B according to Modification 2 is characterized by having an inner cylinder 80 inside the cooling pipe 31. The inner cylinder 80 is made of polycarbonate, for example, and is provided inside the cooling pipe 31. The inner cylinder 80 has a side part 81, a lid part 82, and a bottom part 83. Note that the same components as those described in the above-described embodiment are denoted by the same reference numerals, and redundant description is omitted.

The side part 81 has a cylindrical shape whose outer diameter is smaller than the inner diameter of the cooling pipe 31, and has a plurality of through holes 81h on the surface. Thereby, a gap GB is generated between the outer wall of the side portion 81 and the cooling pipe 31. The lid portion 82 is a disk-shaped member whose outer diameter is substantially equal to the inner diameter of the cooling pipe 31, and closes the end portion on the upper side in the vertical direction of the side portion 81. The bottom 83 is a disk-shaped member whose outer diameter is substantially equal to the inner diameter of the cooling pipe 31, and closes the end of the side portion 81 on the lower side in the vertical direction. The movement of the inner cylinder 80 in the radial direction is restricted by the lid portion 82 and the bottom portion 83 coming into contact with the inner wall of the cooling pipe 31. A support member 84 is provided on the lower surface of the bottom 83 in the vertical direction. The support member 84 supports the inner cylinder 80 in the axial direction by bringing one end into contact with the bottom 83 and the other end into contact with the bottom surface 31 b of the cooling pipe 31.

The liquid quenching apparatus 1B according to Modification 2 has a refrigerant introduction path 71B and a refrigerant discharge path 72B. The refrigerant introduction path 71B is a pipe for supplying the refrigerant to the inside of the inner cylinder 80, and is formed of, for example, stainless steel. The end portion 71Be of the refrigerant introduction path 71B located inside the inner cylinder 80 is open and reaches the vicinity of the bottom 83 as shown in FIG. The refrigerant discharge path 72B is a pipe for discharging the refrigerant from the inside of the inner cylinder 80 to the outside, and is formed of, for example, stainless steel. An end portion 72Be of the refrigerant discharge path 72B located inside the inner cylinder 80 is open and is located near the lid portion 82 as shown in FIG. Note that the positions of the end 71Be and the end 72Be are not limited to the positions described above.

In the liquid quenching apparatus 1B according to Modification 2, the inside of the cooling pipe 31 including the inside of the inner cylinder 80 is filled with the refrigerant. The refrigerant cooled by the cooling device 56 is supplied into the inner cylinder 80 from the end 71Be of the refrigerant introduction path 71B. The refrigerant supplied into the inner cylinder 80 moves to the gap GB through the through hole 81h. The refrigerant that has reached the gap GB takes the heat of the cooling pipe 31 to cool the cooling pipe 31. The refrigerant that has received heat from the cooling pipe 31 returns to the inside of the inner cylinder 80 through the through hole 81h, is carried to the outside of the cooling pipe 31 from the end 72Be of the refrigerant discharge path 72B, and is returned to the cooling device 56. Thus, the refrigerant circulates through the refrigerant introduction path 71B, the gap GB, the refrigerant discharge path 72B, and the cooling device 56, so that the surface temperature of the outer wall of the cooling pipe 31 is cooled below the freezing point of the liquid introduced into the gap G. Is done.

Since the liquid quenching apparatus 1B directly contacts the refrigerant with the inner wall of the cooling pipe 31, the cooling pipe 31 can be efficiently cooled. Further, since the refrigerant supplied to the inside of the inner cylinder 80 moves to the gap GB through the through hole 81h having a small cross-sectional area, the flow rate of the refrigerant in the gap GB is increased. Thereby, since the heat transfer coefficient in the gap GB is increased, the liquid quenching apparatus 1B can cool the cooling pipe 31 more efficiently.

Also, if the end 71Be of the refrigerant introduction path 71B and the end 72Be of the refrigerant discharge path 72B are at the same position in the axial direction, the end of the refrigerant discharged from the end 71Be before heat exchange with the cooling pipe 31 is completed. The possibility of reaching the portion 72Be and being discharged to the outside of the cooling pipe 31 is increased. On the other hand, in the liquid quenching apparatus 1B, the end 71Be is located near the bottom 83 and the end 72Be is located near the lid 82, so the end 71Be and the end 72Be are separated from each other. . For this reason, the liquid quenching apparatus 1 </ b> B can suppress the possibility that the refrigerant is discharged to the outside of the cooling pipe 31 before exchanging heat with the cooling pipe 31.

1, 1A Liquid quenching device 21 Cladding tube 21a Attachment 211 Attachment portion 212 Restriction portion 213 Rectification portion 22 Convex portion 23 Gear 23g Tooth 24 Holding ring 25 Guide ring 26 Bracket 27

Guide plate

31, 31A Cooling pipe

31b Bottom surface

31s Restriction portion 32 Cap 33

Seal member

34, 35 Reinforcement member 36 Bracket 41 Motor 42 Shaft 43 Gear 43g Teeth 51 Control unit 51a Input circuit 51b CPU

51c Memory

51d Output circuit 53 Liquid tank 54 Precooling device 55 Valve 56 Cooling device 57 Weigh scale 58 Pressure cylinder 59 Temperature sensor 60 Power switch 61 Operation switch 62 Valve setting unit

62a Display unit

62b, 62c Push button 63

Weight setting unit

71, 71B Refrigerant introduction path

71Be End part

72, 72B Refrigerant discharge path 72Be End part 73 Liquid introduction path 74 Connection path 75 Liquid tank connection part 76 Liquid supply path 77 Gas supply path 80 Inner cylinder 81 Side part 81h Through hole 82 Cover part 83 Bottom part 84 Support member 91 Container 100 Case 101 Container holding part G, GA Gap G1 First end G2 Second end Zr Rotating shaft

Claims

A cylindrical cooling pipe capable of cooling the outer wall;
A cylindrical cladding tube covering the cooling tube and capable of rotating around the rotation axis;
A liquid introduction path capable of introducing liquid into the gap between the outer wall of the cooling pipe and the inner wall of the cladding pipe;
With
The surface temperature of the outer wall of the cooling pipe is cooled below the freezing point of the liquid,
The said cladding tube has a spiral convex part in an inner wall. The liquid quenching apparatus characterized by the above-mentioned.
One end of the liquid introduction path is disposed at one end of the gap,
The liquid quenching apparatus according to claim 1, wherein the other end of the gap is disposed below the one end in the vertical direction.
The liquid according to claim 1, wherein the convex portion is provided from one end to the other end in the rotation axis direction in a portion of the inner wall of the cladding tube that faces the outer wall of the cooling tube. Quenching device.
The liquid quenching apparatus according to any one of claims 1 to 3, wherein the cladding tube is transparent or translucent.
The liquid quenching device according to any one of claims 1 to 4, further comprising a precooling device capable of precooling the liquid introduced into the gap.