JPH02169978A - Falling type ice making machine - Google Patents

Abstract

PURPOSE:To simultaneously make two plate ices by providing an ice making plate having first and second ice making faces on both side lower faces of a bent part, and falling ice making water on the lower face of an ice maker having a refrigerating system to be installed obliquely. CONSTITUTION:When a motor-driven compressor 36 is operated, low temperature liquid refrigerant is circulated to an ice maker 1 through a route of a first evaporation passage 34 a connecting pipe 28 second evaporation passage 25 to cool an ice making plate 21. Simultaneously, when a circulation pump 9 is operated, ice making water of a water storage chamber 4 is fed under pressure to a sprinkler 32 through a flexible hose 34 a joint pipe 35 a flexible hose 33, and scattered from a sprinkling hole 32A to first and second ice making faces 26 and 27. When detection means such as a timer detects the fact that predetermined plate ices 42 are generated on the first and second ice making faces 26 and 27, the circulation pump 9 is stopped, and the circulation of low temperature liquid refrigerant to the ice maker 1 is simultaneously stopped. Instead, high temperature refrigerant gas from the motor-driven compressor 36 is circulated to the ice maker 1 through the route of a hot gas pipe 29 a first evaporation passage 24 a connecting pipe 28 a second evaporation passage 25 to heat the ice making plate 21.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention relates to a falling ice maker which is equipped with a refrigeration system and is installed at an angle, and is configured to flow ice making water down the bottom surface of the ice maker to produce sheet ice. In particular, the present invention relates to an improved configuration of an ice maker that simultaneously produces two ice cubes.

(b) Prior art As a prior art, for example, Japanese Utility Model Publication No. 58-5904 discloses that a cooler is provided on the back side of the ice-making chamber inside the main body, and that the cooler is installed in two stages, upper and lower, in one direction through a predetermined interval. An ice-making apparatus is disclosed that includes a plate-shaped ice-making member that is arranged at an angle and that simultaneously produces two ice sheets.

(c) Problems to be Solved by the Invention In such a conventional ice making device, two independent cutting heaters are required as the ice forming members are installed spaced apart in the vertical direction. It is necessary to install a guide plate, etc. between the cutting heaters and a running water tray that guides the water flowing down the upper ice forming member onto the lower ice making forming member, which increases the number of parts and increases the need for not only the ice making forming member. However, there was a problem in that the entire device became complicated.

In view of the problems of the prior art, the present invention aims to simplify the ice maker that produces two sheets of ice at the same time, and provides a down-flow ice maker that reduces the number of parts. (2) Means for Solving the Problems In order to solve the above-mentioned problems, the present invention is comprised of an ice-making machine that is equipped with a refrigeration system and is installed at an angle, and that allows ice-making water to flow down the bottom surface of the ice-making machine to produce sheet ice. In the down-flow ice maker, the ice maker includes an ice making plate made by bending a stainless steel plate into a V-shape, with lower surfaces on both sides of the bent portion serving as a first ice making surface and a second ice making surface; a first cooling plate fixed to the upper surface of the ice-making plate corresponding to the ice-making surface to form a first evaporation passage between the ice-making plate; and a first cooling plate fixed to the upper surface of the ice-making plate corresponding to the second ice-making surface; a second cooling plate forming a second evaporation passage between the ice-making plate; and a connection connecting the outlet of the first evaporation passage and the entrance of the second evaporation passage on the first and second cooling plate sides. Vibrator and
After traveling around the top surface of the ice-making plate corresponding to the second ice-making surface,
A hot gas pipe runs around the upper surface of the ice-making plate corresponding to the first ice-making surface, is connected to the inlet side of the evaporation passage, and has a portion spaced apart from the ice-making plate near the bent portion of each ice-making plate. This is a down-flow ice maker consisting of:

(E) Function The present invention can simplify the ice maker by integrating the ice maker with the above configuration, and furthermore, this ice maker has the following features:
Two sheets of ice that are not connected to each other can be manufactured at the same time, and by integrating the ice maker, the number of related parts can be reduced.

(F) Example Hereinafter, an example of the present invention will be explained with reference to the drawings. Fig. 1 shows a vertical cross-sectional view of a down-flow ice maker equipped with an ice maker 1 of the present invention, and 2 shows the top surface of the ice maker. It is a water storage tank main body with an insulating structure that defines a water storage chamber 4 with an opening 3 on the other part of the upper surface, and a base 2A with a ridged surface. A drain plug 5 is provided for draining water accordingly, and an overflow pipe 6 is provided at the top. In addition, water storage chamber 4
A float-type water level detection device 8 and a circulation pump 9 are installed to control the water supply from the water supply pipe 7, and these are installed by inserting them into the water storage chamber 4 through an opening formed in the base 2A. is fixed to the stand 2A and configured to be detachable. Reference numeral 10 denotes a water storage body with an insulating structure defining a water storage chamber 11 with an open top surface, and a bottom wall 11A slopes high toward a water outlet 13 covered by a sheet 12 that can be opened and closed, and a water storage chamber is provided at the lowest part. 4 is formed, and an ice conveyance mechanism 15 is further disposed along this bottom wall 11A. The mechanism 15
The lower end of the rotating shaft 15A is supported by a bearing housing 16 embedded in the side wall of the water storage chamber 11 facing the water discharge port 13,
It is connected to a drive device with a speed reducer 7 whose upper end is fixed to the outer wall surface of the side wall of the water storage chamber 11 in which the water discharge port 13 is formed.

18 is an ice making section main body having a heat insulating structure that defines an ice making chamber 19;
The lower and side surfaces are opened, and the side surface opening is provided with an inspection door 20 that can be opened and closed.

Thus, the ice maker 1 of the present invention is disposed in the ice maker 19. As shown in detail in FIGS. 3 to 6, the ice making IS1 is as follows.
A first cooling plate 22 made of stainless steel is fixed, for example, by brazing, to the upper right surface of a rectangular stainless steel plate to be processed as the ice-making plate 21, and a second cooling plate 23 made of stainless steel is similarly fixed to the upper left surface. These first and second cooling plates 22 and 23 have spiral grooves formed in advance from the outside to the inside by press working or the like, and these can be fixed to the upper surface of the ice making plate 21 as described above. As a result, a first evaporation passage 24 is formed between the upper right surface of the ice making plate 21 and the first cooling plate 22, and a second evaporation passage 25 is formed between the upper left surface of the ice making plate 21 and the second cooling plate 23. It is formed. Further, a refrigerant inlet 24A is formed at the outer end of the first cooling plate 22 facing the first evaporation passage 24, and a refrigerant outlet 24B is formed at the inner end thereof, while the refrigerant outlet 24B is formed at the inner end thereof. A refrigerant inlet 25A is formed at the outer end of the second cooling plate 23, and a refrigerant outlet 25B is formed at the inner end.

As described above, the ice making plate 21 with the first and second cooling plates 22 and 23 fixed to the upper surface is bent at the center to form a V-shape, and the ice making plate 21 corresponding to the first cooling plate 22 1 on the bottom of 21
An ice making surface 26 is formed, and a second ice making surface 27 is formed on the lower surface of the ice making plate 21 corresponding to the second cooling plate 23. Furthermore,
A step is formed at the lower end of each ice-making plate 21. Thereafter, the outlet 24B of the first evaporation passage 24 and the inlet 25A of the second evaporation passage 25 are communicated with each other by a communication vibrator 28 spaced apart from the ice-making plate 21. 29 is a hot gas pipe through which high-temperature refrigerant gas passes, and first runs around the upper surface of the ice-making plate 21 corresponding to the second ice-making plate 27, along both side edges and the lower edge of the first cooling plate 22, and then passes through the first ice-making plate 27. It runs around the upper surface of the ice-making plate 21 corresponding to the surface 26, along both side edges and the lower edge of the second cooling plate 23, and is connected to the inlet 24A side of the first evaporation passage 24. At this time, the hot gas pipe 29 is connected to the ice making plate 2.
It has a spaced apart portion that is not in contact with the vicinity of the first bent portion 21A.

The ice making plate 21 is connected to the inner box 18 of the ice making unit main body 18.
A, the ice-making unit main body 1 is formed by foaming urethane on the cooling plate 22.23 side and covering the surface on the cooling plate 22.23 side with a heat insulating material 18B.

Immediately below the ice maker 1 configured as described above, there is an ice maker plate 2.
A V-shaped cutting grid 30 is disposed substantially parallel to the ice-making plate 21, and further, below the lower edge of the ice-making plate 21, there is a cut-off grid 30 for ice-making water that is circulated between the first and second ice-making surfaces 26 and 27. A first gutter 31A and a second gutter 31B that collect frozen water;
A U-shaped water collector 31 consisting of a gutter 31C that connects these rain gutters at the end is arranged along the side wall of the ice making chamber 19. Also, below the bent portion 21A of the ice making plate 21, Water sprinkler 3
2 is arranged. This water sprinkler 32 has a large number of water spray holes 32A formed at predetermined intervals in the longitudinal direction facing the upper portions of the first ice making surface 26 and the second ice making surface 27.

The water sprinkler 32 is constructed by connecting a flexible hose 33 extending from the end of the water sprinkler 32 to a flexible hose 34 extending from the circulation pump 9 through a jointed flat pipe 35. The ice making water inside is circulated. 36.37
is an electric compressor that constitutes a refrigeration cycle together with the ice maker 1;
The condenser is a condenser air-cooling blower 30, which is installed on the ice making section main body 18.

By the way, in order to return the unfrozen water collected in the first and second gutters 31A and 31B to the water storage chamber 4, a drain port 31D is formed on the lower surface of the first 131A. The return passage 38 is located close to and opposite to the upper end opening of the return passage 38 which is formed in advance by penetrating the upper and lower parts of the heat insulating wall 1o.
The lower end opening communicates with the upper opening of the water storage chamber 4. Furthermore, the above-mentioned jointed flat pipe 35, which is fixed in advance to the heat insulating wall and whose upper end projects into the water storage chamber 4, passes through this passage 38.

The joint flat pipe 35 and the flexible hose 34 extending from the circulation pump 9 can be easily connected through the opening 4o that is closed by the opening/closing lid 39. In addition, a flexible hose 3 extending from the upper end of the jointed flat pipe 35 and the water sprinkler 32 is provided.
3 is connected by opening the inspection door 20 of the water storage main body 17.

The water sprinkler 32, cutting heater 30, and water collector 31 are configured to be easily attachable and detachable from the side opening of the ice making chamber 19 by opening the inspection door 2o. That is, the water sprinkler 32 has front and rear partition plates 41A and 41B fixed to the lower surface of the ice-making plate 21 so as to act as a water flow guide.
The water collector 31 has locking flanges 31E and 31F that extend upward from the outer surfaces of the first and second gutters 31A and 31B and are bent inward, and the ice making plate 2]. The cut-lug heater 3o is removably locked on the upper surface of the lower end of each of the first and second gutter 31A, 31.
It is detachably supported on the upper end of the inner surface of B.

In the above configuration, when the electric compressor 36 is operated,
First evaporation passage 24 → communication vibe 28 → second evaporation passage 25
A low-temperature liquid refrigerant is circulated through the ice maker 1 through the path , and cools the ice maker 21 . At the same time, when the circulation pump 9 is operated, the ice-making water in the water storage chamber 4 is force-fed to the water sprinkler 32 through the flexible hose 34 -> jointed flat pipe 35 -> flexible hose 33, and from the water sprinkler hole 32A to the water sprinkler 32. 1 ice making surface 26 and 2nd ice making surface 27
is sprinkled with water. This water gradually freezes as it flows down each ice-making surface 26, 27, and the unfrozen water is collected from both lower ends of the ice-making plate 21 into the first and second gutter 3iA, 31B, and returns from the drain port 310 to the passageway. 38 and returned to the water storage chamber 4, the circulation operation is repeated. By the way, the bent portion 21 of the ice-making plate 21
The parts near both sides of A are the first cooling plate 22 and the second cooling plate 2.
3 and the communication vibrator 28 are non-contact, so the upper parts of the ice sheets 42 do not connect at this part.

When the detection means such as a timer detects that a predetermined sheet ice 42 as shown by the imaginary line in FIG. 6 has been generated on the first ice making surface 26 and the second ice making surface 27, the circulation pump 9 is stopped. At the same time, the circulation of the low-temperature liquid refrigerant to the ice maker l is stopped.

Instead, high-temperature refrigerant gas from the electric compressor 36 is circulated through the ice maker 1 through the hot gas pipe 29 → first evaporation passage 24 → connecting vibe 28 → second evaporation passage 25 to heat the ice making plate 21. do. As a result, the first ice-making surface 26 side, where dehydration tends to be delayed, is efficiently heated, and the first @! Water surface 26 and second ice making surface 27. As a result, the first ice making surface 26
And the deicing of the ice sheets 42 on the second ice-making surface 27 will be completed at approximately the same time.

The sheet ice 42 that has separated from the first and second ice-making surfaces 26,27 falls onto the cutting heater 30 and is received therein, where it is cut into small ice cubes. The cut small ice cubes fall into the water storage chamber 11 of the water storage main body 10 and are stored. The small ice cubes stored in the water storage chamber 11 are transported to the water discharge port 13 by operating the drive device 17 as necessary to rotate the ice transport machine [15] and pushing the sheet 12 to open the water discharge port 13. and is released to the outside.

(G) Effects of the Invention As described above, the present invention can simplify the ice maker by integrating an ice maker that produces two sheets of ice, and furthermore,
The ice maker simultaneously produces two independent sheets of ice that are not connected to each other, and in the de-icing stage, the first and second ice making surfaces are heated approximately evenly, and the two ice sheets from the ice maker are heated approximately evenly. The dehydration of ice sheets can be completed almost simultaneously, and furthermore, by integrating the ice maker, the number of related parts can be reduced, and other great advantages are achieved.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of the down-flow ice maker of the present invention, Fig. 2 is a perspective view showing the internal structure of the ice making unit main body, Fig. 3 is a plan view showing the state in which a cooling plate is fixed to a stainless steel plate, and Fig. Figure 4 is a top view of the ice maker, Figure 5 is a front view of the ice maker, and Figure 6 is the ice maker.
It is an AA[i-plane view of the figure. DESCRIPTION OF SYMBOLS 1... Ice maker, 21... Ice making plate, 22... First cooling plate, 23... Second cooling plate, 24... First evaporation passage, 24A... Inlet, 24B...・Outlet, 25...Second evaporation passage, 25A...Inlet, 25B...Outlet, 2
6...First ice-making surface, 27...Second ice-making surface, 28...
・Connection pipe, 29...Hot gas pipe.

Claims (1)

[Claims] 1. In a down-flow ice maker, which is equipped with a refrigeration system and is installed at an angle, water for ice making flows down onto the bottom surface of the ice maker to generate sheet ice. an ice-making plate having lower surfaces on both sides of the bent portion as a first ice-making surface and a second ice-making surface, and an ice-making plate fixed to the upper surface of the ice-making plate corresponding to the first ice-making surface and interposed between the ice-making plate and the ice-making plate. a first cooling plate forming a first evaporation passage; a second cooling plate fixed to the upper surface of the ice-making plate corresponding to the second ice-making surface and forming a second evaporation passage between the ice-making plate; On the first and second cooling plate sides,
A connecting pipe that communicates the outlet of the first evaporation passage with the entrance of the second evaporation passage and the upper surface of the ice-making plate corresponding to the first ice-making surface after traveling around the upper surface of the ice-making plate corresponding to the second ice-making surface. A down-flow ice making machine comprising a hot gas pipe that runs around the evaporation passageway and is connected to the inlet side of the evaporation passage, and has a portion separated from the ice making plate near the bending part of each ice making plate. .