KR100924787B1 - Apparatus making ice from sea water and fresh water - Google Patents

Abstract

More particularly, the present invention relates to an ice making device for freezing water adhering to the surface of a cooling rotary drum by circulating refrigerant in a rotating cooling rotary drum, A cooling rotary drum that is cooled and rotated; a hollow shaft-shaped rotary shaft which is coupled through the center of the cooling rotary drum and rotates together with the cooling rotary drum; and a cooling- A heat exchange unit provided on the inner surface of the cooling rotary drum so that the refrigerant transferred from the refrigerant injection unit cools the surface of the cooling rotary drum; A water supply unit for spraying seawater or fresh water onto the surface of the cooling rotary drum; And a cutter provided on one side of the cooling rotary drum so as to cool the ice layer formed on the surface of the cooling rotary drum. Thus, since the freezing efficiency of the seawater is very excellent and the icing state is constant, It is manufacturable.

Sea water, fresh water, deicing, cooling, rotary drum, refrigerant, cutter

Description

Technical Field [0001] The present invention relates to an ice making device for a sea water and fresh water,

The present invention relates to an ice maker for seawater and fresh water. More particularly, the present invention relates to an ice maker for ice maker, To an ice making device for both seawater and fresh water, which can make ice by forcibly dissolving.

Generally, freshness and quality of seafood are maintained by non-cryopreservation method which is stored in low temperature water of about 0 ℃ and freeze-drying method which is completely frozen and stored.

The non-frozen storage method is a method for short-term freshness storage, usually by filling ice made with fresh water to store seafood.

In this way, the freshness of the seafood can be maintained, but as the ice melts over time, the quality of the seafood is lowered by fresh water.

So, we used the method of storing seafood in fresh water by adding fresh ice to seawater, but this also has the same problem because the ice melts and lowers the salt concentration of seawater.

In order to solve such a problem, a method of manufacturing seawater ice by freezing the seawater itself has recently been carried out.

For example, a method is known in which seawater is previously pumped into a water tank and a part of the seawater is forcibly frozen to produce seawater ice.

As shown in FIG. 1, a seawater freezing / deicing apparatus (hereinafter referred to as "prior art") of the present applicant's prior art 10-0498735 is disclosed as an ice making apparatus using seawater.

1 is a general process diagram of an apparatus for producing seawater ice.

As shown in the figure, there is installed a refrigerator composed of a rotary drum rotating on the seawater filled with seawater, and the refrigerator is provided with a Freon liquefied gas injection pipe and a Freon gas recovery pipe to which Freon refrigerant is injected.

The freon gas discharged through the freon gas recovery pipe is again compressed into liquid through a compressor and circulated by being returned to the Freon liquefied gas injection pipe by a transfer pump.

2 is a sectional view showing a conventional sea water ice making apparatus.

A rotary drum 4 rotated by a belt pulley 3 is formed on a seawater cylinder 2 in which a seawater 1 is placed and a rotary drum 4 A liquefied gas transfer pipe 7 connected to the Freon liquefied gas injection pipe A and a Freon gas recovery pipe (not shown) connected to the Freon liquefied gas injection pipe A, B and the vaporized gas inlet 8 connected to the vaporized gas inlet 8 are respectively provided to cool the surface of the rotary drum 4 by causing the injected liquefied gas to be vaporized and discharged to the vaporizing gas inlet 8. [

One end of the fixed shaft 5 is coupled to the rotary drum 4 by the bearing 10 and the other end is fixed to the bracket 11 and fixed by the nut 12 and does not rotate.

Accordingly, the surface of the rotating drum is freezed and the sea ice frozen on the surface is squeezed and compression-pressed, thereby producing a seawater ice having a dense crystal structure continuously to obtain a large amount of seawater ice.

However, since the liquefied gas injected from the liquefied gas transfer pipe is injected only to one side of the rotary drum, the entire surface of the rotary drum is not uniformly cooled, and the icing state of the sea ice freezing is not constant.

In addition, if the sea ice produced by this method is mechanically scratched, the size of the sea ice particles is very small and the sizes of the sea ice particles are very different, so that the crystal structure of seawater ice produced by press molding is not dense.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method and apparatus for improving the freezing efficiency of a refrigerant by making coolant uniformly contact with the entire surface of a rotary drum, And an ice making device.

Another object of the present invention is to provide a seawater and a fresh water freezing device capable of producing seawater ice having a dense crystal structure by keeping the size of the sea ice particles used as the seawater constant.

In order to achieve the above object, the present invention provides an ice making device for freezing water adhering to the surface of a cooling rotary drum by circulating refrigerant in a rotating cooling rotary drum, A cooling rotary drum which is cooled down and rotated downward; a hollow shaft-shaped rotary shaft which is coupled through the center of the cooling rotary drum and rotates together with the cooling rotary drum; A plurality of 'A' shaped angles 132 having a coolant circulation hole 134 formed on one side thereof are coupled and attached to the inner surface of the cooling and rotating drum 100, And the coolant circulation holes 134 are arranged in a zigzag manner so that the coolant transferred from the coolant injection unit 120 flows along the flow path in the angle 132, A refrigerant recovery unit provided on the rotary shaft for recovering the gaseous refrigerant that has passed through the heat exchange unit; and a water discharge unit for spraying seawater or fresh water on the surface of the cooling rotary drum, And a cutter provided on one side of the cooling rotary drum for cooling the ice layer formed on the surface of the cooling rotary drum.

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Preferably, the cooling rotary drum is provided with a pair of partition walls at the center thereof to form a refrigerant collecting passage, the angle is attached to both sides of the refrigerant collecting passage with respect to the refrigerant collecting passage, And a coolant outflow hole is formed in the partition wall so as to be discharged to the coolant collecting part.

Preferably, the coolant injection unit includes a coolant injection pipe into which the coolant is injected from the outside and is placed in the rotation axis, and a plurality of coolant injection pipes connecting the angle and the coolant injection pipe such that the coolant injected through the coolant injection pipe is transmitted to one side of the angle And a refrigerant pipe.

Preferably, the refrigerant transfer pipe is protruded in a V shape at one side of the refrigerant injection pipe and is coupled to the angle.

Preferably, the refrigerant recovery unit includes a plurality of refrigerant inlets provided on the outer circumferential surface of the rotating shaft so that the gaseous refrigerant collected in the refrigerant collecting duct is sucked in, and a refrigerant sucked into the suction port, And a return pipe.

Preferably, the water supply unit includes a water supply pipe disposed at a predetermined interval in the longitudinal direction on the outer side of the cooling rotary drum, and a plurality of nozzles arranged along the water supply pipe to spray water.

Preferably, the cutter is disposed in the longitudinal direction of the cooling rotary drum at regular intervals, and the material thereof is S45C.

According to the present invention, since the sea ice freezing efficiency is very excellent and the icing state is constant compared with the conventional sea ice ice maker, a large amount of sea ice can be manufactured quickly.

In addition, since the crystal structure of the sea ice produced by the present invention is dense and does not melt well, there is an excellent effect in cost reduction and freshness of fresh seafood.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a side sectional view showing a seawater and fresh water ice making apparatus according to a preferred embodiment of the present invention, and FIG. 4 is a front sectional view of the present invention shown in FIG.

It is noted that the present invention is capable of producing ice by freezing in the same way as fresh water as well as seawater.

The present invention mainly includes a cooling rotary drum 100, a rotary shaft 110, a refrigerant injection unit 120, a heat exchange unit 130, a refrigerant recovery unit 140, a water supply unit 150, and a cutter 160.

First, the cooling rotary drum 100 will be described.

The cooling rotary drum 100 has a cylindrical container shape and is made of a metal having good thermal conductivity.

As shown, the interior is empty and the center is perforated.

Next, the rotary shaft 110 has a circular hollow tube shape and is coupled through the inner center of the cooling rotary drum 100.

One side is connected to the bearing 170 and the motor 180 to rotate, and the rotary shaft 110 and the cooling rotary drum 100 rotate together.

A plurality of refrigerant inlets 142 to be described later are provided at the center of the rotary shaft 110 so that gaseous refrigerant accumulated in the cooling rotary drum 100 can be sucked into the rotary shaft 110.

Next, the coolant injecting unit 120 will be described.

The refrigerant injector 120 includes a refrigerant inlet pipe 122 and a refrigerant pipe 124, and a refrigerant flows along the internal flow path. The refrigerant is preferably a liquid refrigerant supplied from the outside, It is common.

The refrigerant injection pipe 122 extends along the longitudinal direction of the rotary shaft 110 and has one end extended to the outside of the rotary shaft 110 to inject liquid refrigerant.

The other end of the refrigerant inlet tube 122 extends to the middle of the rotary shaft 110 and a plurality of refrigerant transfer tubes 124 radially extend like a branch from the outer circumferential surface.

Preferably, the refrigerant transfer pipe 124 extends in a 'V' shape so that the refrigerant injected into the refrigerant injection pipe 122 by pressure is uniformly radially distributed through the refrigerant transfer pipe 124, Lt; / RTI >

The refrigerant pipe 124 extends through the side surface of the rotary shaft 110 and is connected to the angle 132a to be described later.

3, the refrigerant transfer pipe 124 may be disposed in two stages on both sides of the refrigerant suction port 142 provided on the rotary shaft 110. As shown in FIG. 4, It is preferable that the feed pipes 124 extend at an angle of 60 ° to each other. This is an embodiment, and therefore, the feed pipes 124 can be four, eight, twelve or the like. However, it is preferable that the refrigerant suction port 142 is disposed between the refrigerant transfer pipes 124.

The heat exchanger 130, which is the core of the present invention, will be described below.

5 is an exploded perspective view showing the heat exchanging part 130 of the present invention.

The heat exchanging unit 130 is disposed on the inner circumferential surface of the cooling rotary drum 100. When the liquid refrigerant transferred from the refrigerant injecting unit 120 flows, heat transfer occurs to the outside, thereby cooling the cooling rotary drum 100 And is a portion where the refrigerant in a liquid state is vaporized.

The heat exchanging unit 130 is formed of a plurality of angles 132a. The angle 132a is a member having an A-shaped cross-section and a part of which is cut at one side to form a refrigerant circulation hole 134 I have.

At this time, the angles 132a are arranged in the longitudinal direction on the inner circumferential surface of the cooling rotary drum 100, and a plurality of the angles 132a are aligned and coupled to each other.

In other words, the angles 132a are coupled to the inner circumferential surface of the cooling rotary drum 100 by welding or the like, and are joined to each other by welding or the like between the angles 132a, It becomes the same shape.

5, when the angle 132a is arranged in order, the refrigerant circulation holes 134 are arranged in a zigzag manner as shown in FIG.

In this case, two partition walls are provided at a predetermined interval in the center of the inner circumferential surface of the cooling rotary drum 100, and a refrigerant collecting passage 104 is formed so that refrigerant is collected between the two partition walls 102.

3, the angle 132a is attached to both sides of the coolant collecting passage 104. One side of the angle 132a is attached to a side surface of the partition wall 102, (100). In this case, as described above, the coolant circulation holes 134 are disposed in a staggered manner. However, in the case of the angle 132b disposed at the end, the angle 132b without the coolant circulation hole 134 is disposed, A refrigerant outlet hole 102a is formed in the case 102 to allow the refrigerant passing through the angle 132a to flow out.

In addition, the refrigerant transfer pipe 124 is connected to one side of the angle 132a, which is initially disposed, and is preferably connected to the partition wall 102 side.

The liquid refrigerant transferred through the refrigerant transfer pipe 124 to the partition wall 102 flows through the inside of the angle 132a and is transferred to the next angle 132a through the refrigerant circulation hole 134 And then flows again to the next angle 132a. As a result, the refrigerant flows in a zigzag manner and is evenly contacted to the inner surface of the cooling rotary drum 100 to maximize the heat transfer area.

In this way, the coolant quickly absorbs external heat, and the whole of the cooling rotary drum 100 is quenched to rapidly cool water adhering to the external surface.

Finally, the gaseous refrigerant having passed through the angles 132a and 132b flows out to the refrigerant outflow hole 102a, is once collected in the refrigerant collecting passage 104 between the partition walls 102, And recovered through the recovery unit 140.

In addition, as described above, since the refrigerant pipe 124 is provided with a plurality of refrigerant pipes, the refrigerant pipe 124 is connected to the angle 132a.

For example, as shown in FIG. 4, if the refrigerant transfer pipe 124 is six, the angle 132a should be divided into six equal parts. Referring to FIG. 4, a total of 36 angles 132a and 132b Six angles 132a and 132b are allocated to each of the refrigerant transport pipes 124 and a sixth angle 132b of the six angles 132a and 132b is allocated to an angle And the coolant outflow hole 102a is formed at a position coinciding with the coolant outflow hole 102a.

Next, the refrigerant recovery unit 140 will be described.

The refrigerant recovery unit 140 includes the refrigerant suction port 142 and the refrigerant return pipe 144 as described above.

The coolant intake port 142 has a pipe shape and is provided at a central portion of the rotary shaft 110 along the outer circumferential surface of the rotary shaft 110. The coolant intake port 142 is installed to face the coolant collection passage 104, Absorbs the gaseous refrigerant collected in the rotary shaft (104) and transfers the refrigerant in the rotary shaft (110).

The refrigerant recovery pipe 144 is formed at the end of the rotary shaft 110 to allow the gaseous refrigerant sucked into the rotary shaft 110 to flow along the rotary shaft 110 and be discharged to the outside.

Since the refrigerant recovery pipe 144 is connected to a compressor (not shown), the refrigerant is sucked and discharged due to a strong suction force, is compressed again by the compressor, and is circulated in the refrigerant injection pipe 122 in a liquid state Repeat.

Next, the water supply unit 150 will be described.

The water supply unit 150 supplies water to the surface of the cooling rotary drum 100 and includes a water supply pipe 152 to which seawater or fresh water is supplied and a nozzle 154 provided on the outer circumferential surface along the water supply pipe 152. [ .

The water supply pipe 152 has a pipe shape and water flows therein. The nozzles 154 are arranged at a predetermined interval in the water supply pipe 152, and water is strongly injected to the outside through the nozzle 154.

The sprayed water is cooled while being in contact with the cooling rotary drum 100, and an ice layer is formed on the surface of the cooling rotary drum 100.

Next, the cutter 160 will be described.

The cutter 160 is disposed at one side of the cooling rotary drum 100 in a longitudinal direction at a predetermined interval and has a knife-like edge at an end thereof.

Since the ice layer formed on the cooling rotary drum 100 needs to be recycled, it is made of a material excellent in shock and abrasion resistance. Preferably, carbon steel having a high mechanical strength is used, and S45C is suitable.

The interval between the cutter 160 and the surface of the cooling rotary drum 100 can be adjusted according to the size of ice particles to be produced.

Hereinafter, the operation state of the present invention will be briefly described.

When the present invention is operated, Freon, which is a liquid refrigerant, flows into the angle 132a through the refrigerant injection pipe 122 and the refrigerant transfer pipe 124. [ The introduced refrigerant flows along the flow path inside the angle 132a. When the refrigerant flows in one direction and reaches the refrigerant circulation hole 134, the refrigerant flows into the next adjacent angle 132a and flows again in the opposite direction This reciprocating flow is repeated to cool the surface of the cooling rotary drum 100 evenly.

Since the six refrigerant transfer tubes 124 are provided, the refrigerant introduced from each of the refrigerant transfer tubes 124 is cooled by 1/6 of the cooling rotary drum 100 and is discharged through the refrigerant outflow hole 102a, And is collected in the refrigerant collecting furnace 104.

The collected refrigerant passes through the angles 132a and 132b to obtain heat and becomes a gaseous state. The refrigerant gas in the gaseous state is sucked through the refrigerant inlet port 142 and flows through the refrigerant return pipe 144).

The recovered refrigerant is circulated again to be in a liquid state and is supplied to the refrigerant inlet pipe 122 again.

When the cooling rotary drum 100 is rapidly cooled by the circulation and the water is sprayed through the nozzle 154 at the same time, water is deposited on the surface of the cooling rotary drum 100 to be instantly cooled to form an ice layer.

Also, since the rotary shaft 110 is rotated by the motor 180, the cooling rotary drum 100 is also rotated, and the ice layer is cut off by the cutter 160 provided at one side.

At this time, since the cutter 160 does not crush ice but scrapes it, the ice particles are small and uniformly formed. When the ice is produced by compressing the ice, the crystal structure is dense.

As described above, according to the present invention, the cooling efficiency is greatly increased by arranging a plurality of angles so that the cooling rotary drum can be rapidly and uniformly cooled as a whole to produce a large quantity of ice having a constant iced state. It can be easily installed on the ship.

Since the foregoing description is only one embodiment of the invention, the true scope of the invention should be determined by the claims.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a general process diagram of an apparatus for producing sea water ice.

2 is a sectional view showing a conventional sea water ice making apparatus.

3 is a side cross-sectional view showing an ice maker and a seawater fresh water tank according to a preferred embodiment of the present invention.

4 is a front cross-sectional view of the present invention shown in Fig.

5 is an exploded perspective view showing the heat exchanger of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

100: cooling rotary drum 102: partition wall

102a: Refrigerant outflow hole 104: Refrigerant collection path

110: rotating shaft 120: refrigerant injecting part

122: refrigerant inlet tube 124: refrigerant tube

130: Heat exchanging part 132a, 132b: Angle

134: refrigerant circulation hole 140: refrigerant recovery unit

142: Refrigerant intake port 144: Refrigerant recovery pipe

150: water supply unit 152: water supply pipe

154: nozzle 160: cutter

170: bearing 180: motor

Claims (8)

delete 1. An ice maker for freezing water adhering to a surface of a cooling rotary drum by a refrigerant circulating in a rotating cooling rotary drum, A cooling rotary drum (100) whose surface is cooled and rotated below the freezing point; A hollow shaft-shaped rotary shaft 110 coupled through the center of the cooling rotary drum 100 and rotated together with the cooling rotary drum 100; A coolant injection unit 120 for injecting a liquid coolant into the rotary shaft 110 and transferring the coolant to the inner surface of the cooling rotary drum 100; A plurality of 'A' -shaped angles 132 having a coolant circulation hole 134 formed on one side thereof are coupled and attached to the inner surface of the cooling and rotating drum 100 to form a flow path therein, and the coolant circulation hole 134, A heat exchanging part 130 for cooling the surface of the cooling rotary drum 100 while the coolant transferred from the coolant injecting part 120 flows along the flow path in the angle 132; A refrigerant recovery unit 140 provided in the rotary shaft 110 to recover gaseous refrigerant that has passed through the heat exchange unit 130; A water supply unit 150 for spraying seawater or fresh water onto the surface of the cooling rotary drum 100; And a cutter (160) provided at one side of the cooling rotary drum (100) for cooling the ice layer that is freezing on the surface of the cooling rotary drum (100). 3. The method of claim 2, A pair of partition walls 102 are provided at the center of the cooling rotary drum 100 to form a refrigerant collecting passage 104. The angle 132 is attached to both sides of the refrigerant collecting passage 104 And a refrigerant outlet hole 102a is formed in the partition wall 102 so that the refrigerant flowing through the flow path in the angle 132 flows out to the refrigerant collecting passage 104 and is recovered to the refrigerant returning section 140 And an ice maker for both fresh water and fresh water. The method of claim 3, The coolant injector 120 may include a coolant inlet port, A coolant inlet pipe 122 through which the coolant injected from the outside and the coolant injected through the coolant inlet pipe 122 is introduced into one side of the angle 132, And a plurality of refrigerant piping (124) connecting the inlet pipe (122). 5. The method of claim 4, The refrigerant transfer pipe (124) V 'shape at one side of the refrigerant inlet pipe (122) and is coupled to the angle (132). The method of claim 3, The refrigerant recovery unit (140) A plurality of refrigerant inlets 142 provided on the outer circumferential surface of the rotary shaft 110 so that the gaseous refrigerant collected in the refrigerant collecting passage 104 is sucked into the rotary shaft 110, And a refrigerant recovery pipe (144) which is moved and recovered to the outside. 7. The method according to any one of claims 2 to 6, The water supply unit 150, A water supply pipe 152 arranged on the outside of the cooling rotary drum 100 at regular intervals in the longitudinal direction and a nozzle 154 arranged in parallel along the water supply pipe 152 for spraying water Features a combined seawater and fresh water ice maker. 7. The method according to any one of claims 2 to 6, The cutter (160) Wherein the cooling rotary drum (100) is arranged in the longitudinal direction with a predetermined interval therebetween, and the material is S45C.

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