JPH0246871B2 - RYUKASHIKISEIHYOKINOREIKYAKUKI - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention relates to a flow-down ice maker in which ice-making water flows down into a cooler having an ice-making surface to form ice on the ice-making surface, and in particular, the present invention relates to a flow-down ice maker that causes ice-making water to flow down into a cooler having an ice-making surface to form ice on the ice-making surface. This relates to a cooler that constitutes an ice-making surface.

(b) Conventional technology Conventionally, as a falling type ice maker in which ice making surfaces are formed on both sides of the cooling pipe of the refrigeration system,
Publication No. 82765 exists. Such a down-flow ice maker is constructed so that a cooling pipe is directly held between a pair of ice-making molds having ice-making surfaces, and the cooling pipes and the ice-making surfaces are brought into contact with each other in a state of heat exchange.

(c) Problems to be Solved by the Invention In the prior art falling type ice maker, when the cooling pipe is fixed to the ice making mold, the cooling pipe is held between a pair of ice making molds by connecting them to each other. Therefore, there are problems such as the cooling pipe that is simply in contact with the ice-making mold in a heat exchange state being displaced, and the positioning of the cooling pipe with respect to the ice-making surface being difficult.

(d) Means for Solving the Problems In order to solve the problems of the prior art, the present invention installs running water plates substantially vertically on both sides of the cooling pipe of the refrigeration system, facing each other with a gap between them. Each of the flow plates has an ice-making surface exposed substantially flush with the surface of the flow plate on one end surface, and heat conductive buttons having arcuate grooves on the other end surface are arranged at intervals and facing each other. A down-flow ice maker that supports a cooling pipe that runs between the water plates between the grooves of heat conduction buttons arranged on one water plate and the grooves of the heat conduction buttons arranged on the other water plate as the water plates are connected. It is a cooler.

(e) Effect According to the above configuration, by connecting the water plates to each other, the cooling pipe can be connected to the grooves of the heat conduction buttons arranged on one water flow plate and the grooves of the heat conduction buttons arranged on the other water flow plate. The ice-making surface is supported without shifting during the ice-making process, and is positioned corresponding to the ice-making surface.

(F) Embodiment Figure 1 is a system configuration diagram of the down-flow ice maker of the present invention, Figure 2 is a perspective view of the down-flow ice maker, and Figure 3 is a perspective view of the down-flow ice maker.
The figure is a cross-sectional view taken along the line A-A in FIG. 2, FIG. 4 is a perspective view showing the relationship between the cooling pipe and the button, and FIG. The main structure consists of a pair of water flow plates 2A and 2B installed substantially vertically, a cooling pipe 3 of the refrigeration system, and a large number of heat conduction buttons 4A and 4B arranged on both sides of the cooling pipe 3. be done. The cooling pipe 3 has a meandering shape and is connected in an annular manner with an electric compressor 5, a condenser 7 which is forcedly air-cooled by an air blower 6, an expansion valve 8, and the like. The heat conduction buttons 4A and 4B are made of a material with higher thermal conductivity than the flow plates 2A and 2B, and have an arcuate groove 9 on one end surface that is in contact with approximately a semicircumference of the cooling pipe 3.
A and 9B, respectively, and a locking flange 10 in the middle part.
A and 10B, respectively, and have flat round ice making surfaces 11A and 11B on the other end surfaces, respectively, and furthermore, the bottoms of the arcuate grooves 9A and 9B are actively filled with deicing water, which will be described later, along the cooling pipe 3. Water entry grooves 12A and 12B are formed for water to enter the water.
Each of the water flow plates 2A and 2B has a flat plate shape,
In order to fit the heat conduction buttons 4A and 4B,
Openings with burrings 13A and 13B on the inside are formed at equal intervals and facing the cooling pipe 3, and the openings formed in the water flow plates 2A and 2B are shifted in position so as not to overlap with each other. ing.

Therefore, the heat conduction buttons 4A and 4B are connected to the water flow plate 2.
It is fitted into the openings of A and 2B and fixed in advance to the water flow plates 2A and 2B by caulking 11A1 and 11A2. At this time, the flanges 10A and 10 of the buttons 4A and 4B are attached to the ends of the bar rings 13A and 13B.
With B locked, ice making surface 11A of button 4A
The ice-making surfaces 11B of the buttons 4B and 4B are exposed substantially flush with the surfaces of the flowing water plates 2A and 2B, respectively. Furthermore, the water flow plates 2A and 2B can be connected by connecting means, for example, rivets 14, at seat push portions provided at appropriate locations on the water flow plates 2A and 2B.
The cooling pipe 3 is firmly held between the arcuate grooves 9A of the heat conduction buttons 4A fixed to the side and the arcuate grooves 9B of the heat conduction buttons 4B fixed to the flow plate 2B side. , heat conduction buttons 4A and 4B alternately displaced on both sides of the cooling pipe 3
are arranged in a heat exchange manner with the cooling pipe 3. Also,
The openings at the peripheral ends of the water flow plates 2A and 2B are closed by a cover 15 made of rubber or resin, which has extremely poor thermal conductivity. This cover 15 has an upper water guide section 15A and a lower water guide section 15B, both of which are shaped like a steeple at the top and bottom, and a water supply passage 16 is formed in the lower water guide section 15B.

Next, to explain the water system, reference numeral 17 is a water supply and deicing water sprinkler having water sprinkling ports 17A and 17B that spray water toward the upper back surfaces of the water flow plates 2A and 2B. A water supply pipe 18 extending to is connected to a water pipe via a water supply solenoid valve 19. Reference numeral 20 denotes an ice making water sprinkler having water sprinkling ports 20A and 20B facing the upper water guide section 15A, and a water guide pipe 21 extending from the sprinkler 20 collects unfrozen water falling from the lower water guide section 15B. It is connected to a circulation pump 24 disposed in a water storage tank 23 that communicates with the gutter 22 . 23A is an overflow pipe of the water storage tank 23, and 25 is a temperature sensor that detects the end of ice making operation and ice removal operation based on the temperature of ice.

Next, the operation of the present invention will be explained. First, the water supply solenoid valve 19 is opened to start supplying water to the water storage tank 23. In this case, the water sprayed from the water sprinkling ports 17A and 17B of the water supply/deicing water sprinkler 17 via the water supply pipe 18 passes through the water supply passage 16 formed in the lower water guide portion 15B, falls into the gutter 22, and flows into the water storage tank. 23
be led to. When water is supplied to a predetermined water level in the water storage tank 23, the water supply electromagnetic valve 19 closes to end the water supply. Next, the electric compressor 5 operates and the cooling pipe 3
At the same time, the circulation pump 24 circulates low-temperature refrigerant gas to
is activated, the water in the water storage tank 23 is forced to be sent to the ice-making water sprinkler 20 through the water pipe 21, and the water in the water sprinkling port 20 is
The ice-making water sprinkled from A and 20B flows down to the water plates 2A and 2B, respectively, by the upper water guide section 15A.

In this way, the ice-making water flowing down the water plates 2A and 2B is transferred to the ice-making surface 11A of the buttons 4A and 4B, which is cooled by heat conduction from the cooling pipe 3.
The unfrozen ice-making water gradually freezes in water and 11B, and falls from the lower guide part 15B into the gutter 22, is returned to the water storage tank 23, and is again circulated to the upper part of the flow plates 2A and 2B. Therefore, all buttons 4A and 4
As shown in FIG. 3, convex lens-shaped ice 26 eventually freezes on the ice-making surfaces 11A and 11B of B. When the temperature sensor 25 detects the growth of such lens ice 26, the electric compressor 5 stops. to stop the circulation of low-temperature refrigerant to the cooling pipe 3, and at the same time stop the circulation of the low-temperature refrigerant to the cooling pipe 3.
4 is also stopped to end the ice making operation.

When the ice making operation is finished, the water supply solenoid valve 19
opens, and the water sprinkling ports 17A and 1 of the water sprinkler 17 for water supply and deicing are opened through the water supply pipe 18 in the same way as the water supply operation described above.
The water sprinkled from 7B flows down the back side of the water plates 2A and 2B, and uses the heat sensitivity of this water to flow down the water plate 2A.
and 2B and the temperature of buttons 4A and 4B, and the ice making surfaces 11A and 11 of buttons 4A and 4B are increased.
The frozen lens ice 26 is placed on ice-making surfaces 11A and 1
Start de-icing operation to remove from 1B.

When the temperature sensor 25 detects detachment of the lens ice 26, the water supply solenoid valve 19 closes to end the ice removal operation and start the next cycle of ice making operation.

(g) Effects of the Invention As described above, the present invention connects the water plates to each other, thereby creating an arc-shaped groove of a heat conduction button fixed to one water flow plate and a heat conduction button fixed to the other water flow plate. This provides the advantage that the cooling pipe can be reliably held between the arcuate grooves without being displaced, and at the same time the cooling pipe can be positioned corresponding to the ice making surface.

Moreover, since the arcuate groove is in surface contact with the circumference of the cooling pipe, efficient heat conduction from the cooling pipe to the heat conduction button can be expected, and the ice making capacity can be improved.

[Brief explanation of the drawing]

Fig. 1 is a system configuration diagram of the down-flow ice maker of the present invention, and Fig. 2 is a perspective view of the main parts of the down-flow ice maker.
3 is a sectional view taken along the line AA in FIG. 2, FIG. 4 is a perspective view showing the relationship between the cooling pipe and the button, and FIG. 5 is an explanatory diagram of the arrangement of heat conduction buttons with respect to the cooling pipe. 2A, 2B...Water plate, 3...Cooling pipe, 4
A, 4B ... Heat conduction button, 9A, 9B... Arc groove, 11A, 11B... Ice making surface, 14... Rivet.

Claims (1)

[Claims] 1 In a water flow type ice maker, running water plates facing each other with a gap are installed on both sides of the cooling pipe of the refrigeration system approximately vertically, and one end surface of each flowing water plate has a surface approximately parallel to the surface of the water flowing plate. Heat conduction buttons having an ice-making surface exposed in one state and having an arcuate groove on the other end surface are arranged at intervals, and heat conduction buttons arranged on one water flow plate as the opposing water flow plates are connected. A cooler for a down-flow ice maker, characterized in that the cooling pipe running between the flow plates is supported between the groove of the button and the groove of the heat conductive button arranged on the other flow plate.