JP2586199Y2 - Auger ice machine - Google Patents

Description

[Detailed description of the invention]

[0001]

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

[0002]

2. Description of the Related Art As one type of auger-type ice making machine, a refrigeration circuit is provided at a thinned portion formed by forming a recess at the outer periphery of an intermediate portion of an ice making cylinder into which ice making water is supplied from below. The evaporating pipe, which is a member, is wound, and the ice making cylinder is cooled to a freezing temperature by the evaporating pipe, and the ice formed on the inner surface of the ice making cylinder is peeled upward by rotation of an auger having a spiral ridge formed therearound. To make dense ice, for example,
No. 7 discloses this.

[0003]

In the above-mentioned auger-type ice making machine, a single pipe having a single structure is employed as an evaporating pipe, which is tightly wound around the outer periphery of the ice making cylinder. For this reason, when the ice making cylinder is thick and long, the evaporating pipe becomes long and the pressure loss due to pipe resistance and the like becomes large, so that not only sufficient ice making ability may not be obtained but also the rigidity of the middle part of the ice making cylinder. However, it is difficult to secure the roundness of the ice making cylinder at the time of forming a recess on the outer periphery of the intermediate portion and at the time of ice making operation. Although the above-described increase in the pipe resistance can be eliminated by increasing the inner diameter of the evaporating pipe, in such a case, the number of turns of the evaporating pipe around the ice making cylinder is reduced, the heat exchange efficiency is reduced, and sufficient ice making capacity is obtained. I can't get it. SUMMARY OF THE INVENTION The present invention has been made to address the above-described problems, and has an auger type ice making that can provide sufficient ice making ability even when the ice making cylinder is thick and long, and can sufficiently secure the rigidity of an intermediate portion of the ice making cylinder. The purpose is to provide a machine.

[0004]

To achieve the above object SUMMARY OF THE INVENTION In the present invention, the auger type ice making machine described above, shunting the Re et wrapped middle portion upper portion of the ice making cylinder inlet as the evaporation pipe When connected to the container
Et winding an upper pipe connected to monitor outlet flow combiner to the intermediate portion lower portion of the ice making cylinder Re entrance to the diverter
The outlet is connected to the current collector and the outlet is
Serial adopted <br/> evaporation pipe composed of a lower pipe which is connected in parallel to the upper pipe, also axial smell of the ice making cylinder
A thick portion was provided in the middle of the ice making cylinder located between the upper pipe and the lower pipe. In this case, the
It is also possible to provide a flange on the outer periphery of the thick part formed in the middle part of the ice making cylinder located between the upper pipe and the lower pipe in the axial direction of the ice making cylinder.

[0005]

[Operation and Effect of the Invention] In the auger type ice making machine according to the present invention, since the evaporating pipe wound around the outer periphery of the ice making cylinder is constituted by the upper pipe and the lower pipe connected in parallel, even when the ice making cylinder is thick and long, each of the evaporating pipes can be used. Pipes do not become long, pressure loss in each pipe can be reduced,
Sufficient ice making capacity can be obtained with each pipe. In addition, because a thick portion is provided in the middle part of the ice making cylinder located between the upper pipe and the lower pipe in the axial direction of the ice making cylinder,
The rigidity of the middle part of the ice making cylinder can be sufficiently secured while effectively reducing the ice making efficiency by effectively utilizing the axial gap formed between the upper pipe and the lower pipe. The roundness of the ice making cylinder can be sufficiently ensured during the processing of forming a recess on the outer periphery and during the ice making operation, and the reliability (life) of the ice making cylinder as a product can be greatly improved. . Also, in the axial direction of the ice making cylinder
In the case where a flange is provided on the outer periphery of the thick part formed at the middle part of the ice making cylinder located between the upper pipe and the lower pipe, the rigidity of the middle part of the ice making cylinder can be further improved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 schematically shows an auger type ice maker capable of implementing the present invention. In this auger type ice maker, FIG.
A lower pipe 12a wound around a lower portion of the ice making cylinder 11 with a copper evaporating pipe 12 wound around the outer periphery of the ice making cylinder 11 formed of the heat transfer material;
1 is divided into two upper pipes 12b wound around an upper part of the pipes 12 and connected in parallel.
Upstream of 2b, expansion valves 13a and 13b are provided, respectively. Each of the expansion valves 13a and 13b is a temperature-sensitive expansion valve known per se that operates by sensing the temperature of the outlet side.
Thermosensitive cylinders 13a1 and 13b1 are attached to the outer periphery of the outlet side end of each of the pipes 12a and 12b.

The other configuration of the auger type ice making machine is the same as that of the conventional one, and the inflow sides of the expansion valves 13a and 13b are connected to the condenser 1 via the flow divider 14 and the dryer 15.
6 and the downstream side of both pipes 12a and 12b is connected to the suction side of a compressor 18 via a current collector 17 and both pipes 12a and 12b and both expansion valves 13a and 13b are Dryer 15, condenser 1
6, a compressor 18 and a pressure switch 19 constitute a refrigeration circuit.

Further, ice making water from an ice making water tank 21 is supplied to the inside of the ice making cylinder 11 sequentially from below, and ice formed on the inner surface of the ice making cylinder 11 surrounds a spiral ridge 22a. It is transported upward while being peeled off by the rotation of the formed auger 22, compressed and dehydrated by the pressing head 23, turned into dense ice, and discharged from the ice discharge port 24 to the outside of the machine. The water level L in the ice making water tank 21 is determined by a float switch 25, an overflow pipe 26, and a water supply valve (a valve for controlling water supply from a water supply source (not shown) to the ice making water tank 21) during the ice making operation.
In addition, when the ice making is stopped, the water is drained from the ice making cylinder 11 and the ice making water tank 21 to the drain pan 29 by the drain valve 28 when the ice making is stopped. The auger 22 is driven to rotate by a motor 31 via a gear unit 32.

FIGS. 2 and 3 show an embodiment of an auger type ice making machine according to the present invention. In this embodiment, a recess 11 for attaching a lower pipe is provided on the outer periphery of an intermediate portion of an ice making cylinder 11.
a and a concave portion 11b for mounting the upper pipe are formed by machining, and each portion is made thin, and an ice making cylinder is formed.
11, the lower pipe 12a and the upper pipe 1 in the axial direction.
A thick portion 11c that is not machined is provided at an intermediate portion of the ice making cylinder 11 located between 2b. In this embodiment, after the lower pipe 12a and the upper pipe 12b are wound around the respective recesses 11a and 11b of the ice making cylinder 11, they are fixed at the base end to the ice making cylinder 11 and are bent on the respective pipes and welded. And fixed to the ice making cylinder 11 by solder (not shown) melted from the outer periphery of each pipe. Further, the lower pipe 12a and the upper pipe 12b are covered with a heat insulating material 33 and a cover 34 from the outer periphery.

In the embodiment constructed as described above, the evaporating pipe 1 wound around the outer periphery of the ice making cylinder 11 is used.
2 is divided into two parts, a lower pipe 12a and an upper pipe 12b, which are connected in parallel, and expansion valves 13a, 13b are arranged upstream of these pipes 12a, 12b, respectively, so that even if the ice making cylinder 11 is thick and long, Each pipe 12a, 12b
Can be reduced, the pressure loss in each of the pipes 12a, 12b can be reduced, and the pressure on the inlet side of each of the pipes 12a, 12b can be reduced.
b each expansion valve 13a, 13b arranged upstream of b
The difference between the inlet side pressure and the outlet side pressure of
A sufficient ice making ability can be obtained with each of the pipes 12a and 12b.

Further, since each of the expansion valves 13a and 13b is a temperature-sensitive expansion valve which operates by sensing the temperature of the outlet side, each of the expansion valves 1a and 13b is operated in accordance with the refrigerating load on each of the pipes 12a and 12b.
3a and 13b operate to adjust the flow rate of the refrigerant flowing through the pipes 12a and 12b, so that the ice making cylinder 11 having a different refrigeration load in each part (the lower part has a large refrigeration load because water close to the outside water temperature exists). However, the upper part has a small refrigeration load due to the formation of perfect ice), but is efficiently cooled.

In the present embodiment, the ice making cylinder 11
Lower pipe 12a and upper pipe 12b in the axial direction of
Since the thick portion 11c, which is not machined, is provided in the middle of the ice making cylinder 11 located between the two pipes 12a, 12c.
The rigidity of the middle portion of the ice making cylinder 11 can be sufficiently ensured while the decrease in ice making efficiency is minimized by effectively utilizing the axial gap formed between the cylinders b. The roundness of the ice making cylinder 11 can be sufficiently ensured at the time of forming the recesses 11a and 11b and during the ice making operation, thereby greatly improving the reliability (life) of the ice making cylinder 11 as a product. be able to.

FIG. 4 shows another embodiment of the present invention. In this embodiment, an annular flange 11e is provided on the outer periphery of a thick portion 11c provided on an ice making cylinder 11. Therefore, in this embodiment, the rigidity of the intermediate portion of the ice making cylinder 11 can be further improved as compared with the above embodiment.

In the above embodiment, the present invention was implemented by disposing expansion valves 13a and 13b upstream of the pipes 12a and 12b wound around the outer circumference of the ice making cylinder 11, respectively. It is also possible to implement the present invention by disposing one expansion valve. In this case, a temperature-sensitive cylinder of an expansion valve is attached downstream of the current collector 17 (on the compressor side).

[Brief description of the drawings]

FIG. 1 is a view schematically showing an embodiment of an auger type ice making machine capable of implementing the present invention.

FIG. 2 is an enlarged partial sectional view of a main part of FIG.

FIG. 3 is an enlarged view of the ice making cylinder shown in FIG. 2;

FIG. 4 is an enlarged view showing another embodiment of the ice making cylinder.

[Explanation of symbols]

11: ice-making cylinder, 11a, 11b: recess, 11c: thick part, 11e: flange, 12: evaporation pipe, 12a: lower pipe, 12b: upper pipe, 14: flow divider, 17:
Current collector, 22: auger, 22a: spiral ridge.

Continuation of the front page (56) References JP-A-59-43872 (JP, U) JP-A-59-185577 (JP, U) JP-A 1-24537 (JP, Y2) (58) Fields surveyed (Int) .Cl. ⁶ , DB name) F25C 1/14

Claims (2)

(57) [Scope of request for utility model registration] An evaporating pipe, which is a component of a refrigeration circuit, is wound around a thinned portion formed on the outer periphery of an intermediate portion of an ice making cylinder into which ice making water is supplied from below. The ice making cylinder is cooled to a freezing temperature by the evaporating pipe, and the ice formed on the inner surface of the ice making cylinder is transferred upward while peeling off by rotation of an auger formed around a spiral ridge so that dense ice is formed. in the the auger type ice making machine, Re said et wrapped middle portion upper portion of the ice making cylinder, as the evaporation pipe when connected to the inlet to the shunt together
Exit the the Re winding et inlet to the intermediate section lower portion of the upper pipe and the ice making cylinder which is connected to a flow combiner to said diverter in
Connected and the outlet connected to the current collector
An evaporating pipe comprising a lower pipe connected in parallel with an upper pipe, and the ice making cylinder positioned between the upper pipe and the lower pipe in an axial direction of the ice making cylinder.
An auger-type ice maker characterized in that a thick portion is provided in the middle of the above . 2. A flange is provided on an outer periphery of a thick portion formed at an intermediate portion of the ice making cylinder located between the upper pipe and the lower pipe in the axial direction of the ice making cylinder. The auger ice maker according to claim 1.