JP2004239489A - Ice making machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow easy replacement, repair and maintenance inspection of ice scraping members while making an increasing amount of ice in a compact space. <P>SOLUTION: This ice making machine comprises ice creating members 1 each having a cooling space in which cooling fluid flows and an ice creating surface F formed on the opposite side to the cooling space in the vertical direction, and a rotor 13 having the plurality of ice scraping members 2 each consisting of an ice scraping vane 14 mounted on the rotor 13 and alternately lined up in the horizontal direction for rotation around the axial center in the line-up direction. A pulley 16 is formed on the outer peripheral face of the rotor 13 apart from the rotational axial center and a transmission belt 19 is bridged between the pulley and a main pulley provided on an electric motor so that the ice scraping members 2 are individually driven. The ice scraping members 2 can be inserted in and removed from the adjacent ice creating members 1, 1 in the vertical direction. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides an ice forming member having a cooling space through which a cooling fluid flows and having an ice forming surface oriented vertically in a direction opposite to the cooling space, and ice for scraping ice generated on the ice forming surface. The present invention relates to an ice making machine including a scraping member.
[0002]
[Prior art]
2. Description of the Related Art As an ice maker of this type, the one disclosed in Patent Document 1 is conventionally known.
According to this conventional example, a heat exchanger having a heat exchange surface on the outside is provided in the housing, a disk is provided between the heat exchangers, and the disk has a blade acting on the heat exchange surface. A motor shaft is provided through the center of the circle of the heat exchanger, and a disk is attached to the shaft to drive and rotate the blade.
[0003]
[Patent Document 1]
Patent No. 2811443 [0004]
In the case of the conventional example as described above, by increasing the area of the heat exchange surface of the heat exchanger, there is an advantage that the amount of ice making can be increased in a space-compact state, and the number of heat exchangers and blades is increased. Has the advantage that it can cope with a further increase in the amount of ice making.
[0005]
[Problems to be solved by the invention]
However, as the number of heat exchangers and blades increases, the length of the shaft that drives and rotates the blade increases, and when the blade is damaged and needs to be replaced or repaired or for maintenance and inspection, the shaft must be replaced. Space for pulling out had to be secured, and there was an inconvenience that compactness was lost.
[0006]
In addition, there is a disadvantage in that replacement, repair, and maintenance work are troublesome because the long shaft is pulled out.
Furthermore, since the blade is driven and rotated by one shaft, when a part of the blade is damaged, it is difficult to detect the damage, and it is difficult to identify which blade has been damaged, and to replace or replace the blade. There was a drawback that the repair work required labor.
[0007]
The present invention has been made in view of such circumstances, and the invention according to claim 1 is capable of increasing the amount of ice making in a space-compact state, while exchanging an ice scraping member. The purpose of the present invention is to facilitate repair and maintenance work, and the invention according to claim 2 aims to improve the efficiency of ice making while smoothly taking out an ice-containing fluid. A third object of the present invention is to make it possible to increase the amount of ice making with a small number of assembly points.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 achieves the above object by
An ice forming member having a cooling space through which a cooling fluid flows and having an ice forming surface oriented vertically on the side opposite to the cooling space; and an ice scraper for scraping ice generated on the ice forming surface An ice machine comprising:
The ice scraping member is configured by attaching an ice scraping blade to a rotating body, and a plurality of both members are arranged in a horizontal direction in a state where the ice generating member and the ice scraping member are alternately arranged. And a rotation drive mechanism that is rotatably provided around an axis oriented in the juxtaposed direction, and that acts on an outer peripheral surface of the rotator separated from the rotation axis to individually drive the rotator. In addition, the ice scraping member is provided so as to be vertically insertable / removable between the adjacent ice generating members, and an inlet for supplying a liquid to be cooled is provided between the adjacent ice generating members, and a position separated from the inlet. And an outlet for taking out an ice-containing liquid containing ice.
[0009]
(Action / Effect)
According to the configuration of the ice making machine according to the first aspect of the present invention, the ice scraping member is driven to rotate by individually acting on the outer peripheral surface of the rotating body, and the ice scraping member is rotated. A conventional drive shaft for driving a plurality of rotating bodies integrally through a rotating shaft center of the rotating body is eliminated.
Therefore, the ice scraping member can be individually inserted and removed from between the ice generating members without being disturbed by the conventional drive shaft, and the ice making amount can be increased in a space-compact state. In addition, replacement and repair of the ice scraping member and maintenance and inspection work can be easily performed.
In addition, since the ice scraping members are individually driven to rotate, if the rotation of the ice scraping blades becomes defective due to breakage of the blades, the ice scraping members can be easily identified, and replacement or repair of the ice scraping members can be performed. It can be done easily and quickly.
[0010]
The invention according to claim 2 is to achieve the above object,
The ice making machine according to claim 1,
The ice scraping blade is attached to the rotating body such that the outer circumferential side from the rotating shaft center side is closer to the rear side in the rotating direction of the rotating body, and the ice-containing fluid is transferred to the outer circumferential direction of the rotating body with rotation. To be configured.
[0011]
(Action / Effect)
According to the configuration of the ice making machine of the second aspect of the present invention, the ice generated on the ice generating surface is scraped by the ice scraping blades, and the ice separated from the ice generating surface is transferred to the outer peripheral side of the rotating body. .
Therefore, the ice can be transferred to the outer periphery of the rotating body and can be taken out smoothly from the outer periphery thereof, and ice does not adhere to the ice generating surface, and the heat transfer efficiency from the ice generating surface to the liquid to be cooled is increased. Ice generation can be promoted and ice making efficiency can be improved.
Further, by equalizing the flow rate of the liquid to be cooled divided into a plurality of pieces, it is possible to prevent icing due to the partial increase in the ice content.
[0012]
The invention according to claim 3 achieves the above object by:
The ice making machine according to claim 1 or 2,
The ice generating member is formed by forming vertical surfaces on both sides in the juxtaposition direction on the ice generating surface, and the ice scraping member is provided with ice scraping blades on both sides in the juxtaposition direction of the rotating disk. Configure.
[0013]
(Action / Effect)
According to the configuration of the ice making machine according to the third aspect of the present invention, the ice forming member having both ice forming surfaces and the ice scraping member acting on the two ice forming surfaces can be assembled at once. .
Accordingly, the ice making amount can be increased with a small number of assembling points, and an increase in the capacity of the ice making machine can be easily dealt with.
[0014]
As the configuration of the rotary drive mechanism that drives the ice scraping member, a pulley or sprocket is attached to the outer periphery of the ice scraping member, and the pulley or sprocket and the drive rotation shaft of the drive motor are interlocked via a transmission belt or chain. There are various configurations such as a configuration for connecting (claim 4) and a configuration in which a driven gear is attached to the entire periphery of the ice scraping member and a driven gear driven and rotated by a drive motor is engaged with the driven gear (claim 5). Can be adopted.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
[0016]
FIG. 1 is a partially omitted overall front view of a first embodiment of an ice making machine according to the present invention, wherein ice forming members 1 and ice scraping members 2 are alternately arranged in a horizontal direction, and the ice forming members 1 and the ice scraping members 2 are arranged side by side. The first fixed plate 3 and the second fixed plate 4 are fixed to each other by tightening and fixing the four fixed rods 5 and the fixed nuts 6 from both ends in the installation direction to constitute an ice making machine.
[0017]
The first fixing plate 3 is provided with a first through hole 7 and a supply pipe 8 as an inlet for supplying a liquid to be cooled such as water or an aqueous solution so as to communicate with the first through hole 7. It is attached. A second through hole 9 is formed at the center of the ice forming member 1 so as to be continuous with the first through hole 7, and a brine solution as a liquid to be cooled is supplied to a space between the adjacent ice forming members 1. It is configured to be able to.
[0018]
The ice scraping member 2 is provided with an ice-containing fluid take-out pipe 10 for taking out an ice-containing fluid, and these ice-containing fluid take-out pipes 10 are flange-connected to take out the ice-containing fluid outside the machine. .
[0019]
An inflow pipe 11 for supplying a low-temperature refrigerant such as Freon gas as a cooling fluid is provided at a lower portion of the ice generating member 1, and an outflow pipe 12 for discharging the cooling fluid is provided at an upper portion.
[0020]
As shown in the sectional view of the main part of FIG. 2 and the side view of FIG. 3, the ice scraping member 2 has ice scraping blades 14 attached to both sides of the rotating body 13 in the direction in which the ice scraping member 2 is arranged. It is configured. The rotating body 13 is rotatably supported by the U-shaped support member 15 in a side view, and a portion of the support member 15 that contacts the outer peripheral surface of the rotating body 13 is reduced in frictional force by Teflon (trademark of DuPont). The rotation member 13 is configured to be able to rotate with low sliding resistance between the rotation member 13 and the support member 15.
[0021]
A pulley 16 is formed at the center of the rotating body 13 in the thickness direction. An electric motor 17 as a drive motor is mounted on the upper part of the support member 15, and a transmission belt 19 is wound around a driving pulley 18 and a rotating body 13 mounted on a drive shaft of the electric motor 17. A guide roller 20 is provided above the support member 15 to guide the rotation of the rotating body 13 while preventing the rotating body 13 from moving upward. The structure including the pulley 16, the electric motor 17, the driving pulley 18, and the transmission belt 19 is generally called a rotation drive mechanism. As the drive motor, a hydraulic motor or the like may be used instead of the electric motor 17. Further, the rotation driving mechanism may be configured by using a sprocket and a driving sprocket instead of the pulley 16 and the driving pulley 18 and using a chain instead of the transmission belt 19.
[0022]
The ice scraping blades 14 are attached to the rotating body 13 such that the outer circumferential side from the rotating shaft center P side is closer to the rear side in the rotating direction of the rotating body 13, and the outer periphery of the rotating body 13 is An ice-containing fluid outlet 21 connected to the ice-containing fluid outlet tube 10 is provided so as to be substantially tangential.
[0023]
Accordingly, the ice generated on the ice generating surface F of the ice generating member 1 is scraped by the ice scraping blades 14 with the rotation of the ice scraping member 2, and the ice separated from the ice generating surface F is removed. The ice is transferred to the outer peripheral side of the rotating body 13 and can be taken out smoothly from the outer peripheral portion thereof. Further, ice is not attached to the ice generating surface, and the efficiency of heat transfer from the ice generating surface F to the liquid to be cooled is increased. And promote ice production efficiency. In the figure, reference numeral 22 denotes a communication port for supplying the liquid to be cooled.
[0024]
As shown in the side view of FIG. 4 and the cross-sectional view of FIG. 5 (cross-sectional view taken along the line AA of FIG. 4), the ice generating member 1 is made of an aluminum corrugated plate formed so as to have unevenness in a horizontal direction. 23 are stacked, and a stainless steel clad disk 24 is integrated on both outer surfaces thereof by brazing to form a cooling space S through which a cooling fluid flows. As a result, the ice generating surface F that is oriented vertically is formed on the outer surface side of each of the disks 24, 24 on both surfaces opposite to the cooling space S, and the roughness for forming the ice generating surface F can be easily increased. It can be formed in. Although not shown, a portion of the corrugated plate 23 facing the second through-hole 9 is closed, and a communication hole is formed in the uneven vertical plate portion in the vicinity thereof, so that the refrigerant flows upward smoothly. .
[0025]
The outer periphery of the ice forming member 1 is surrounded by an inflow pipe 11 in a lower semicircle portion and an outflow pipe 12 in an upper semicircle portion, and further, the outer periphery thereof is surrounded by first and second support members 25 and 26. Have been.
[0026]
As shown in FIG. 4, the lower surfaces of the ice generating member 1 and the ice scraping member 2 are supported by the pedestal 27, and the first and second support members 25 on one end side in the direction of juxtaposition with the first fixing plate 3. , 26, the first and second support members 25, 26 and the support member 15, and the contact surfaces of the first and second support members 25, 26 and the second fixing plate 4 on the other end side in the juxtaposition direction. A seal member (not shown) is interposed at the location.
[0027]
With the support rod 27 supported by the pedestal 27, the two upper fixing rods 5 are provided at positions not overlapping with the ice forming member 1 and the ice scraping member 2 in plan view, and the fixing nut 6 is loosened and the ice-containing fluid is removed. The ice generating member 1 and the ice scraping member 2 can be individually inserted and removed upward by releasing the connection of the take-out tube 10.
Although not shown, each of the electric motors is provided with a load detector for detecting an overload, and an alarm device such as an alarm lamp is connected to the load detector. An alarm is generated by turning on (or blinking) a lamp when the load is detected, so that the overloaded ice scraping member 2 can be easily specified.
[0028]
With the above configuration, only the ice scraping member 2 whose overload has been detected by the load detector can be easily extracted for repair or replacement, and the ice generating member 1 and the ice scraping member for maintenance and inspection are provided. 2 can be easily inserted and removed individually.
[0029]
FIG. 6 is a sectional view of a main part of a second embodiment of the ice making machine according to the present invention, and FIG. 7 is a side view of an ice scraping member of the second embodiment. It is as follows.
[0030]
That is, the driven gear 31 is attached to the entire outer periphery of the rotating body 13, while the driven gear 32 is attached to the electric motor 17, the driven gear 32 is engaged with the driven gear 31, and the ice scraping members 2 are individually rotated. A rotary drive mechanism is configured to drive. The other configuration is the same as that of the first embodiment, and the same drawing number is assigned and the description is omitted.
[0031]
FIG. 8 is a sectional view of a main part of a third embodiment of the ice making machine according to the present invention, and the difference from the first embodiment is as follows.
[0032]
That is, the ice generating member 41 is provided with the ice generating surface F only in one side of the juxtaposition direction of the ice generating member 41 and the heat insulating material 42 is provided on the other side, and the ice scraping member 43 is An ice scraping blade 45 is attached to only one side of the blade 44. The other configuration is the same as that of the first embodiment, and the same drawing number is assigned and the description is omitted.
[0033]
According to the third embodiment, the same ice generating member 41 and the ice scraping member 43 are alternately arranged side by side, so that an ice making machine can be configured while coping with an increase in the amount of ice making, which facilitates manufacture. Has the following advantages:
[0034]
In the above embodiment, a low-temperature refrigerant such as Freon gas is supplied into the cooling space S. For example, a low-temperature liquid or gas that does not change phase between gas and liquid may be supplied as the cooling fluid. good.
[0035]
【The invention's effect】
As described above, according to the configuration of the ice making machine of the invention according to the first aspect, the ice scraping member is rotated and driven by acting on the outer peripheral surface of the rotating body and individually driving the rotating body. In order to drive the rotation, the drive shaft for driving the plurality of rotating bodies integrally by penetrating the rotating shaft center portion of the rotating body as in the conventional case is eliminated, so that the conventional drive shaft does not disturb. The ice scraping members can be individually inserted and removed from between the ice generating members, and the amount of ice making can be increased in a compact space. It can be done easily. In addition, since the ice scraping members are individually driven to rotate, if the rotation of the ice scraping blades becomes defective due to breakage of the blades, the ice scraping members can be easily identified, and replacement or repair of the ice scraping members can be performed. It can be done easily and quickly.
[Brief description of the drawings]
FIG. 1 is a partially omitted overall front view of a first embodiment of an ice making machine according to the present invention.
FIG. 2 is a sectional view of a main part.
FIG. 3 is a side view of the ice scraping member.
FIG. 4 is a partially cutaway side view of a main part.
FIG. 5 is a sectional view taken along line AA of FIG. 4;
FIG. 6 is a sectional view of a main part of a second embodiment of the ice making machine according to the present invention.
FIG. 7 is a side view of an ice scraping member according to a second embodiment.
FIG. 8 is a sectional view of a main part of a third embodiment of the ice making machine according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Ice generation member 2 ... Ice scraping member 13 ... Rotating member 14 ... Scraping blade 16 ... Pulley 17 ... Electric motor (drive motor)
18 Drive pulley 19 Transmission belt 21 Outlet 31 Drive gear 32 Drive gear 41 Ice generating member 43 Ice scraping member 44 Rotating body 45 Scraping blade S Cooling space F Ice forming surface

Claims (5)

An ice forming member having a cooling space through which a cooling fluid flows and having an ice forming surface oriented vertically on the side opposite to the cooling space; and an ice scraper for scraping ice generated on the ice forming surface An ice machine comprising:
The ice scraping member is configured by attaching an ice scraping blade to a rotating body, and a plurality of both members are arranged in a horizontal direction in a state where the ice generating member and the ice scraping member are alternately arranged. And a rotation drive mechanism that is rotatably provided around an axis oriented in the juxtaposed direction, and that acts on an outer peripheral surface of the rotator separated from the rotation axis to individually drive the rotator. In addition, the ice scraping member is provided so as to be vertically insertable / removable between the adjacent ice generating members, and an inlet for supplying a liquid to be cooled is provided between the adjacent ice generating members, and a position separated from the inlet. And an outlet for taking out an ice-containing liquid containing ice. The ice making machine according to claim 1,
The ice scraping blade is attached to the rotating body such that the outer circumferential side from the rotating shaft center side is closer to the rear side in the rotating direction of the rotating body, and the ice-containing fluid is transferred to the outer circumferential direction of the rotating body with rotation. The ice machine that is configured in. The ice making machine according to claim 1 or 2,
The ice forming member has vertical surfaces on both sides in the juxtaposing direction formed on the ice generating surface, and the ice scraping member has ice scraping vanes on both sides in the juxtaposing direction of the rotating body. Ice machine that is. The ice making machine according to any one of claims 1, 2, and 3,
An ice maker wherein a rotation drive mechanism is provided with a pulley or a sprocket attached to an outer periphery of an ice scraping member, and the pulley or the sprocket and a drive rotation shaft of a drive motor are interlocked via a transmission belt or a chain. The ice making machine according to any one of claims 1, 2, and 3,
An ice maker wherein a rotation drive mechanism is provided with a driven gear over the entire outer periphery of the ice scraping member, and a driven gear driven and rotated by a drive motor is meshed with the driven gear.

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