JPH0545030A - Ice making device - Google Patents

Abstract

PURPOSE:To enable some ice blocks of any sizes to be efficiently manufactured within a short period of time by a method wherein a plurality of heat transfer pipes having their top ends closed are arranged within a water tank to face upwardly through a bottom plate of the water tank and then a distributing pipe communicating with a cooling medium supplying pipe is inserted into each of the heat transfer pipes. CONSTITUTION:A plurality of heat pipes 4 having top ends closed are inserted from a bottom part of a container 1-A vertically into a container and lower ends of these heat transfer pipes 4 are assembled to one collecting pipe 5. A plurality of distributing pipes 7 branched from the cooling medium supplying pipe 6 are passed through a pipe wall of the collecting pipe 5 and inserted into the heat transfer pipes 4 so as to reach the upper parts of the heat transfer pipes 4. Cooling medium 3 is supplied from a cooling medium supplying pipe 6 to the upper parts of the heat transfer pipes 4 through the distributing pipe 7 and circulated between the distributing pipe 7 and the heat transfer pipes 4 into the collecting pipe 5 so as to cool water A stored in the container 1A and the water is changed into ice.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice making device.

[0002]

2. Description of the Related Art FIG. 6 is a vertical sectional view of a conventional ice making device. In the figure, 1 is a container, 2 is a heat transfer tube provided on the outer periphery of the container, 3 is a cooling medium flowing in the heat transfer tube, 1
0 is the water surface, A is water, and B is ice.

In this apparatus, when water A is put in the container 1 and the cooling medium 3 is circulated in the heat transfer tube 2, the water A is gradually changed from the wall surface of the container 1 into ice B, and becomes ice blocks. Eventually, water A
Turns into ice B.

[0004]

In the conventional apparatus, it took a considerable time for all the water in the container to freeze. This is because the heat transfer tube 2 is provided in the peripheral part of the container 1, so that when the ice builds up and the thickness of the ice in the inner peripheral part of the container becomes thick, the convective heat transfer is lost in that part. This is because the cooling of the water A does not proceed.
For this reason, when trying to make ice in a short time, the size of the ice block was limited.

The present invention solves the above-mentioned drawbacks of the prior art,
It is intended to provide an ice making device capable of producing a large ice block in a short time.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a plurality of heat transfer tubes having closed upper ends are arranged in a water tank so as to extend upward through the bottom plate of the water tank. The present invention relates to an ice making device, characterized in that a distribution pipe extending from a lower end of each heat transfer pipe to a cooling medium supply pipe is inserted up to a vicinity of an upper end of each heat transfer pipe.

[0007]

Since the present invention has the above configuration,
When the cooling medium is supplied from the cooling medium supply pipe to each heat transfer pipe,
It grows by freezing, and when it reaches a certain thickness, it is made into ice by joining and integrating with the frozen ice around the adjacent heat transfer tubes.

[0008]

1 is a longitudinal sectional view of a first embodiment of an ice making device of the present invention, FIG. 2 is a sectional view taken along line XX of FIG. 1, and FIG. 3 is a partially enlarged explanatory view of the operation of FIG. In the figure, 1A is a container, 4
Is a plurality of heat transfer tubes vertically inserted into the container from the bottom of the container 1A, and the upper end thereof is closed. Reference numeral 5 is a collecting pipe that collects the lower ends of the heat transfer pipes to form a single pipe, 6 is a cooling medium supply pipe, 7 is a branch from the cooling medium supply pipe, and penetrates the pipe wall of the collecting pipe 5 to It is a distribution pipe leading to the upper part, and its upper end is open. A is water, B is ice, and 3 is a cooling medium. The cooling medium 3 is supplied from the cooling medium supply pipe 6, reaches the upper portion of the heat transfer pipe 4 by obtaining the distribution pipe 7, passes between the distribution pipe 7 and the heat transfer pipe 4, enters the collecting pipe, is discharged, and is shown in the drawing. After being cooled by a cooling device not yet circulated, it circulates through the above path again.

In the above apparatus, when the cooling medium 3 flows from the cooling medium supply pipe 6, the cooling medium passes through the distribution pipe 7 and enters the upper end of the heat transfer pipe 4, cools the wall surface of the heat transfer pipe 4, and collects the pipe. Return to 5. At this time, the water is cooled on the outer circumference of the heat transfer tube 4 and grows by icing on the outer circumference of the heat transfer tube 4, and when it reaches a certain thickness, it joins with the ice of the adjacent heat transfer tube 4 and the ice in the container 1 is integrated. To do. 3 is a state immediately before joining, FIG. 2 is a state immediately after joining,
Reference numeral 8 in FIG. 2 is an ice block joining line. In FIG. 2, the part which is not completely frozen, that is, the part of water remains. If the freezing progresses further, the part of the water left between the ice will also freeze. Since the container itself is not provided with a heat transfer tube, the inner wall surface of the container does not freeze or the freeze is delayed.

When the ice block is taken out of the apparatus, the supply pipe 6
Further, by supplying the temperature of the cooling medium 3 at 0 ° C. or higher, the frozen portion on the outer periphery of the heat transfer tube 4 is melted, so that the heat transfer tube 4 and the ice can be easily separated.

FIG. 4 is a longitudinal sectional view of the second embodiment of the present invention, and FIG. 5 is an explanatory view of the operation of the same embodiment. In the figure, 1B is a container. Unlike the container 1B of the first embodiment, the container 1B is formed in a shape in which a length larger than the length of the heat transfer tube 4 is extended upward to the height. 9 is ice block, 10
Is a water surface, 11 is a hole of a trace of a heat transfer tube, and 12 is a hanging jig. The configuration of the other parts is the same as that of the first embodiment.

In this apparatus, when the ice around the heat transfer tube 4 is joined and integrated, and then the temperature of the cooling medium 3 supplied from the supply tube 6 is set to 0 ° C. or more to melt the ice on the outer circumference of the heat transfer tube, the ice is melted. Is released and the buoyancy of water causes
Ice blocks 9 float on the water surface 10. At this time, the ice block 9 has a hole 11 as a trace of a heat transfer tube, and the hanging jig 1 is placed in this hole 11.
2 can be inserted and taken out easily. Further, the low temperature cooling medium 3 is again provided in the supply pipe 6 after the ice blocks have floated.
The following ice blocks can be produced by pouring.

As described in detail above, the devices of these embodiments have the following features. (1) By arranging the heat transfer tubes vertically and evenly from the bottom of the container, the ice grows evenly from the periphery of the heat transfer tubes and is integrated, so that an ice block of any size can be efficiently manufactured in a short time. (2) Since the heat transfer tube is vertical and the upper end is closed, and the container wall surface does not freeze or delays the freezing, it is easy to remove the ice block just by melting the ice around the heat transfer tube. (3) A large number of holes for heat transfer pipes are formed in the ice block, and a jig can be inserted using these holes to facilitate transportation and subdivision. (4) The capacity at the time of melting is improved by increasing the ice surface.

[0014]

According to the ice making apparatus of the present invention, a plurality of heat transfer tubes whose upper ends are closed are arranged in a water tank so as to penetrate upward through the bottom plate of the water tank, and a cooling medium supply pipe is provided from the lower ends of the heat transfer tubes. Since the distribution pipe connected to the heat transfer pipe is inserted to the vicinity of the upper end of each heat transfer pipe, a large ice block can be manufactured in a short time.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a first embodiment of the present invention.

2 is a sectional view taken along line XX of FIG.

FIG. 3 is an explanatory view of the operation of the same embodiment.

FIG. 4 is a vertical sectional view of a second embodiment of the present invention.

FIG. 5 is an operation explanatory view of the same embodiment.

FIG. 6 is a vertical cross-sectional view of a conventional ice making device.

[Explanation of symbols]

 1, 1A, 1B Container 2 Heat transfer pipe 3 Cooling medium 4 Heat transfer pipe 5 Collecting pipe 6 Cooling medium supply pipe 7 mining pipe 8 Ice block joining line 9 Ice block 10 Water surface 11 Heat transfer pipe hole 12 Suspension jig A Water B Ice

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Chio Shiramatsu 3-chome, Asahi-cho, Nishibiwajima-cho, Nishi-Kasugai-gun, Aichi Prefecture Yoichi Mihara Yoichi Mihara Nishi-bashijima, Nishi-Kasugai-gun, Aichi Prefecture Asahimachi 3-chome, Mitsubishi Heavy Industries, Ltd. Air Conditioning Factory

Claims (1)

[Claims] 1. A plurality of heat transfer tubes having closed upper ends are arranged in a water tank so as to penetrate upward through the bottom plate of the water tank, and the distribution pipes connected from the lower ends of the heat transfer tubes to the cooling medium supply pipe are the same. An ice making device characterized in that the heat transfer pipes are inserted up to near the upper end of each heat transfer pipe.