KR102183632B1 - System for rapidly making continuous-circulating small-sized ice for industry - Google Patents

Abstract

The present invention relates to a system for rapidly making small-sized ice for industry, and more specifically, to a system for rapidly making continuous-circulating small-sized ice for industry, wherein a water tank is divided into multiple stages. Moreover, a plurality of heat exchangers and binary freezers are installed to cool and supply water for ice-making, and a refrigerant for ice-making is firstly and secondarily cooled and supplied to the divided water tank to maintain the refrigerant at a constant temperature to make homogeneous ice.

Description

Industrial small ice rapid manufacturing system with continuous circulation method {SYSTEM FOR RAPIDLY MAKING CONTINUOUS-CIRCULATING SMALL-SIZED ICE FOR INDUSTRY}

The present invention relates to an industrial small-sized ice rapid manufacturing system, in detail, by dividing a water tank into multiple stages, installing a plurality of heat exchangers and binary freezers to supply cooling water for ice production, and supplying a refrigerant for ice production 1 , It relates to an industrial small-sized ice rapid manufacturing system of a continuous circulation method in which a refrigerant is maintained at a constant temperature by supplying it to a divided water tank by secondary cooling.

In general, ice is used for various purposes in a variety of industries such as aquatic products, poultry processing and freshness maintenance, food processing, and chemical plants.Especially, aquatic products and poultry can be processed and maintained freshness by supplying ice immediately before packaging when the product is shipped. And prevent corruption.

As such, ice is widely used in a variety of industrial fields, but after producing a large amount of ice with an industrial ice machine, crushing it with an industrial ice machine, temporarily storing it in a storage ice bin, which is an industrial large-capacity storage, and supplying it to each supplier that needs ice. Is done.

This industrial ice maker puts sterilized water into a large rectangular ice cube at a certain volume, and the large ice cube is immersed in a cooling solution of 9°C to freeze the water in the ice cube.

Then, in the large ice cube, the water starts to freeze from the edge, and when it freezes to a certain extent, take it out, and after washing is finished, icebreaking is performed with an icebreaker, and then packing is performed.

However, there is a problem in that such large-sized industrial ice makers and commercial ice makers must be installed, requiring expensive equipment, and increasing investment costs due to a wide installation area.

Meanwhile, as an ice-making method, an air freezing method, contact freezing method, immersion freezing method, liquefied gas freezing method, low-temperature osmotic dehydration freezing method, and the like have been disclosed.

As an example of such an ice making method, an apparatus for manufacturing an ice container of Korean Patent Publication No. 10-2003-0039535 is disclosed.

The apparatus for manufacturing an ice container is an apparatus for manufacturing an ice container as shown in FIG. 1, comprising: a main frame 10 having a plurality of rolling wheels 12 installed on a bottom thereof; A moving frame 20 which is fixed by moving cylinders 25 installed on both sides of the main body frame 10 and installing the raw material tank 22 and the circulation tank 24 on the upper side of the main frame 10 and reciprocating; Guide rods 32 formed on both sides under the moving frame 20 are guided by the guide stand 26 formed in the moving frame 20, and a plurality of spiral shafts each having an upper mold 34 formed at the bottom end An upper mold part (30) consisting of a fixing frame (38) that is fastened and lifted by an elevating cylinder (36) installed as an intermediate moving frame (20) between the raw material tank (22) and the circulation tank (24). )Wow; A cooling tank in which a plurality of lower molds 45 are attached and detached by being connected to the raw material tank 22 and a supply pipe on one side in the middle of the main frame 10 and having a drainage passage 42 and a drain hole 44 formed on the upper surface thereof. (40) and; A transfer conveyor unit 50 in which a plurality of transfer rollers 54 and transfer belts 56 are installed driven by a drive motor 52 toward the cooling tank 40; A circulation pump 60 for circulating received water by connecting the circulation tank 24 and the cooling tank 40 to the lower portion of the main frame 10 is installed, and a refrigerant is connected to the cooling tank 40 to one side thereof. It consists of a plurality of refrigerators 70 to circulate.

However, such a conventional ice container manufacturing apparatus has a problem in that mass production is impossible due to a relatively slow ice manufacturing speed.

In order to solve this problem, the present applicant has developed and registered an industrial small ice rapid manufacturing system of a continuous circulation method, which is Korean Patent Publication No. 10-2116881.

As shown in Figures 2 to 8, the industrial small ice rapid manufacturing system 100 of the continuous circulation method includes a main frame F1, a sub-frame F2, a transfer sprocket SP, and a transfer tray chain ( 110), an ethanol water tank 120, a hot air fan 130, a discharge chute 140, a fixed amount of water discharger 150, a circulation pump P, a heat exchanger 160, and an air knife ( 170), and a water storage tank (ST1) and an ethanol storage tank (ST2).

First, the main frame F1 is formed in a rectangular shape. At this time, the main frame (F1) lowers the ice mold (M) constantly filled with water from the water dispensing device 150 to the ethanol water tank 120, and the ice mold (M) cooled in the ethanol water tank 120 A pair of guide rollers R are provided at each of the front and rear ends so as to raise the.

And, the sub-frame (F2) is separately installed on one side of the main frame (F1).

In addition, the transfer sprocket (SP) is installed at the front and rear ends of the main frame (F1), rotated by the drive motor (M), and reverses the ice mold (M) moving along the top of the main frame (F1) to the bottom. Transfer, and reverse when moving from bottom to top again.

In addition, the transfer tray chain 110 is continuously rotated along the main frame F1 by a transfer sprocket SP, and a plurality of ice molds M are installed. At this time, the ice mold M has excellent thermal conductivity and is made of a metal material such as aluminum that is not damaged at low temperatures and has both ends fixed to the transfer tray chain 110 in a rectangular tray shape.

Subsequently, the ethanol water tank 120 is installed on the upper end of the main frame F1, and an ice mold M, which is moved along the transfer tray chain 110 by storing ethanol as a refrigerant therein, is immersed. At this time, the ethanol water tank 120 is provided with a plurality of discharge control valves (V1) and a plurality of supply control valves (V2) on the bottom, ethanol is collected from the discharge control valve (V1), the supply control valve (V2) A plurality of grooves 121 bent downward so that the ice mold (M) does not interfere with each other is formed, and a discharge control valve (V1) and a supply control valve (V2) are installed in the groove (121), and each discharge control valve (V1) is connected to the circulation pump (P) through the discharge line (L1), each supply control valve (V2) is connected to the heat exchanger 160 through the supply line (L2).

In addition, the ethanol tank 120 controls the amount and flow of the ethanol tank 120 through the discharge control valve V1 and the supply control valve V2 in order to smoothly flow the ethanol as a whole,- In order to minimize the heat loss of ethanol at 60°C, it is preferable to be manufactured in a box shape with urethane rigid foam.

Subsequently, the hot air fan 130 is a primary hot air heater 131 installed at the bottom of the ethanol water tank 120 in the main frame F1 to apply hot air to the ice mold M, which is immersed in the ethanol water tank 120 and frozen. ), and a secondary hot air heater 133 installed at the rear end of the primary hot air heater 131 to apply hot air to the ice mold M. At this time, the first and second hot air heaters 131 and 133 have a structure in which heat is generated through a hot wire to discharge hot air through a blowing fan, and the secondary hot air heater 133 has a higher temperature than the primary hot air heater 131 You can also discharge the hot air.

In addition, the discharge chute 140 is installed at the lower end of the main frame (F1) and falls from the ice mold (M) by the hot air generated from the first and second hot air heaters (131, 133) of the hot air fan (130). Discharge. At this time, the discharge chute 140 is preferably formed in the form of a hopper open on one side so that the small ice slides and is discharged.

In addition, the quantitative water dispenser 150 includes a bracket body 151, a water injection cylinder module 153, a pressure module 155, an elevating module 157, and a sliding module 159.

The bracket body 151 is installed above the movement path of the ice mold M at the rear upper end of the main bracket F1. At this time, the bracket body 151 is installed so as to slide back and forth along the guide rail G in the main frame F1 to adjust the position.

The water injection cylinder module 153 is installed on the upper part of the bracket body 151 by arranging the same number of water injection cylinders 153a as the number of grooves in the ice mold (M), and is filled inside by pressure applied from the upper part. Water is injected into the ice mold (M) through the injection tube (T).

The pressure module 155 is installed so as to be moved up and down by a vertical rod 156 from the top of the water injection cylinder module 153 to pressurize the water injection cylinder module 153 so that the water injection cylinder of the water injection cylinder module 153 While (153a) is pressurized, water is discharged from the inside. The pressurization module 155 includes an auxiliary water storage tank ST3 that receives and stores water from the water storage tank ST1 to fill water into each of the water injection cylinders 153a of the water injection cylinder module 153 at the top. It is equipped.

The elevating module 157 is a pneumatic, hydraulic cylinder and is vertically connected from the upper surface of the pressure module 155 to elevate the pressure module 155.

The sliding module 159 is installed horizontally on the upper portion of the ice mold M inside the bracket body 151, and each injection tube T connected to the water injection cylinder 153a is fixed to the ice mold M. It slides back and forth as it moves, and water is injected into the ice mold (M). At this time, the sliding module 159 slides back and forth along the electric ball screw (B).

In addition, the circulation pump (P) is installed in the sub-frame (F2), receives the heated ethanol from the ethanol tank 120 through the discharge line (L1) and discharges it to the heat exchanger 160 to discharge it from the heat exchanger 160. The cooled ethanol is circulated to the ethanol tank 120 through the supply line L2.

In addition, the heat exchanger 160 is installed in the sub-frame (F2), and cooling the ethanol circulated through the circulation pump (P) is supplied to the ethanol tank 120.

Subsequently, the air knife 170 sprays high-pressure air supplied from a compressor (not shown) to the ice mold M installed on the main frame F1 and discharged from the ethanol tank 120 to remove ethanol. At this time, the air knife 170 is preferably installed to have an inclination at the discharge side of the ethanol tank 120 so that ethanol falling by the high pressure air from the ice mold (M) can fall into the ethanol tank 120.

In addition, the water storage tank ST1 is installed at the upper end of the sub-frame F2 to supply water to the water quantitative discharger 150.

Subsequently, the ethanol storage tank ST2 is separately installed in the vicinity of the sub-frame F2 to replenish the ethanol with the ethanol tank 120 through the circulation pump P.

However, in the conventional continuous circulation type industrial small ice rapid manufacturing system, since ethanol is cooled and supplied by one heat exchanger, that is, a refrigerator, to one ethanol bath, the temperature of ethanol in the ethanol bath is not constant, and water storage Since the water at room temperature stored in the tank is supplied to a quantitative water dispenser, the temperature of ethanol increases during ice production, so it takes a lot of time to manufacture ice, and it is difficult to manufacture ice of a homogeneous material.

In addition, in the conventional continuous circulation type industrial small ice rapid manufacturing system, condensation occurs in the ice mold because the ice mold is dropped by heating the ice mold with a hot fan and then the ice mold with an elevated temperature is introduced into the ethanol tank. There is another problem in that the freezing performance is deteriorated due to the dilution of ethanol.

In addition, the conventional continuous circulation type industrial small ice rapid manufacturing system has another problem that since the upper surface of the ethanol tank is exposed to the outside air, heat is discharged to the outside air, thereby reducing the refrigeration efficiency, which consumes a lot of energy. .

In addition, in the conventional continuous circulation type industrial small ice rapid manufacturing system, tap water or groundwater is directly stored in a water storage tank, but there is another problem in that edible ice cannot be manufactured in areas with poor water quality.

Korean Patent Application Publication No. 10-2003-0039535 Korean Patent Publication No. 10-2116881

The present invention is to solve the above problems, divide the water tank into multiple stages, install a plurality of heat exchangers and binary freezers to cool and supply water for ice production, and supply refrigerants for ice production to the first and second steps. An object thereof is to provide an industrial small ice rapid manufacturing system of a continuous circulation method in which a refrigerant is maintained at a constant temperature by cooling and supplying each to a divided water tank to produce homogeneous ice.

In addition, the present invention prevents condensation from occurring in the ice mold by heating the ice mold by heating the ice mold with a hot air, and then cooling the ice mold with an elevated temperature to prevent deterioration of freezing performance due to diluted ethanol. Another object is to provide a circulating industrial small ice rapid manufacturing system.

In addition, the present invention provides an industrial small ice rapid manufacturing system of a continuous circulation method to increase energy efficiency by relatively increasing refrigeration efficiency by installing an insulating cover on the upper surface of the refrigerant tank to prevent exposure to outside air. There is a purpose.

In addition, another object of the present invention is to provide an industrial small ice rapid manufacturing system of a continuous circulation method in which tap water or groundwater is purified by a water purifier and then stored in a water storage tank, so that edible ice can be manufactured in areas with poor water quality. have.

Features of the present invention for achieving the above object,

A main frame formed in a rectangular shape; A sub-frame installed on one side of the main frame; A transfer sprocket installed at the front and rear ends of the main frame and rotated by a drive motor; A transfer tray chain continuously rotated along the main frame by the transfer sprocket and in which a plurality of ice molds are installed; A refrigerant tank installed at an upper end of the main frame, in which the first refrigerant as a refrigerant is stored therein and the ice mold moved along the transfer tray chain is immersed, divided into multiple stages, and provided with a plurality of refrigerant storage spaces; A hot air fan installed at the lower end of the main frame and immersed in the refrigerant tank to apply hot air to the frozen ice mold; A discharge chute installed at the lower end of the main frame to discharge small ice falling from the ice mold by the hot air of the hot air fan; A water quantitative dispenser installed on one side of the upper end of the main frame to fill the ice mold with water; A plurality of refrigerant circulation pumps installed in the sub-frame and circulating the first refrigerant stored in each refrigerant storage space of the refrigerant tank; A plurality of cooling heat exchangers installed in the sub-frame and cooling the first refrigerant circulated through each of the refrigerant circulation pumps and supplying them to each of the refrigerant storage spaces; A plurality of binary refrigerators installed outside to circulate the second refrigerant to each of the cooling heat exchangers so that the first refrigerant is heat-exchanged with the second refrigerant in the cooling heat exchanger and cooled; And installed in the main frame, connected to any one of the plurality of binary refrigerators, cooled while circulating a third refrigerant, and then heat-exchanged with air to cool the air, and supply the cooled air to the water quantitative discharger. It is characterized in that it comprises an air-cooled refrigerator for cooling the ice mold by discharging to the ice mold with the transfer tray chain.

Here, the continuous circulation type industrial small ice rapid manufacturing system includes an air knife installed on the main frame to remove the first refrigerant by spraying air to the ice mold discharged from the refrigerant tank; A water storage tank installed on the sub-frame and supplying water to the quantitative water dispenser; A water purifier installed on the sub-frame to purify water supplied to the water storage tank; A water circulation pump installed on the sub-frame to circulate water in the water storage tank; The water installed in the sub-frame and circulated through the water circulation pump is connected to any one of the plurality of binary refrigerators to cool while circulating a third refrigerant, and heat exchange with water to cool the water to 5°C. , A water cooling heat exchanger for storing cooled water in the water storage tank; And a refrigerant storage tank installed near the sub-frame to supplement a first refrigerant to each refrigerant storage space of the refrigerant tank through each of the circulation pumps.

Here, also, the refrigerant tank,

In order to minimize the heat loss of the first refrigerant, the side and bottom surfaces are made of urethane rigid foam in a box shape, and an insulating cover is installed on the upper surface.

Here, each of the binary refrigerators includes a low temperature stage for cooling the second refrigerant at a relatively low pressure and a high temperature; It consists of a high temperature stage for cooling the second refrigerant at a relatively high pressure and low temperature.

Here, the plurality of cooling heat exchangers includes: a primary cooling heat exchanger connected to the low temperature end of the binary refrigerator to heat-exchange the first refrigerant supplied through the refrigerant circulation pump with the second refrigerant to cool the first cooling to -35°C; A secondary heat exchanger connected to the high temperature end of the binary refrigerator and a primary cooling heat exchanger to heat-exchange the first refrigerant first cooled through the primary cooling heat exchanger with the second refrigerant to cool it to -60°C.

Here, the air-cooled refrigerator divides a space within the insulating protective wall so that cooling air does not flow out to the outside, and is installed in the partitioned space.

Here, the first refrigerant is brine or ethane, the second refrigerant is a methane-based refrigerant or a non-azeotropic mixed refrigerant in which ethane and methane are mixed, and the third refrigerant is brine, methane, ethane, It is any one selected from propane, an inorganic compound, an azeotropic mixed refrigerant, and a non-azeotropic mixed refrigerant.

According to the present inventors continuous circulation type industrial small ice rapid manufacturing system configured as described above, the water tank is divided into multiple stages, a plurality of heat exchangers and binary freezers are installed to cool and supply water for ice production, and ice production is performed. The refrigerant for the first and second cooling is supplied to the divided water tanks, respectively, to maintain the refrigerant at a constant temperature to produce homogeneous ice, and to manufacture small ice in a short time.

In addition, according to the present invention, it is possible to prevent condensation from occurring in the ice mold by heating the ice mold by heating the ice mold with a hot air to drop the ice and then cooling the ice mold with an elevated temperature, thereby diluting ethanol and reducing freezing performance. have.

In addition, according to the present invention, by installing an insulating cover on the upper surface of the refrigerant tank to prevent exposure to the outside air, it is possible to increase the refrigeration efficiency relatively to increase energy efficiency.

In addition, according to the present invention, edible ice can be manufactured in areas with poor water quality by purifying tap water or groundwater with a water purifier and then storing it in a water storage tank.

1 is a view for explaining a conventional tunnel-type freezing method of a multi-layered structure for rapid freezing of foods.
2 to 8 are views showing the configuration of a conventional continuous circulation type industrial small ice rapid manufacturing system.
9 is a perspective view showing the configuration of a continuous circulation type industrial small ice rapid manufacturing system according to an embodiment of the present invention.
10 is a front view of FIG. 9.
FIG. 11 is a perspective view showing the configuration of a refrigerant tank in a system for rapidly producing industrial small ice in a continuous circulation method according to an embodiment of the present invention.
12 is a perspective view showing the configuration of a cooling system in the industrial small ice rapid manufacturing system of a continuous circulation method according to an embodiment of the present invention.
13 is a left side view of FIG. 12.
FIG. 14 is a partial front view showing the configuration of an air-cooled refrigerator in the continuous circulation type industrial small ice rapid manufacturing system according to an embodiment of the present invention.
15 is a right side view of FIG. 14.

Hereinafter, with reference to the accompanying drawings, the configuration of a continuous circulation type industrial small ice rapid manufacturing system according to an embodiment of the present invention will be described in detail as follows.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary depending on the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout this specification.

9 is a perspective view showing the configuration of a continuous circulation type industrial small ice rapid manufacturing system according to an embodiment of the present invention, FIG. 10 is a front view of FIG. 9, and FIG. 11 is a continuous circulation according to an embodiment of the present invention Fig. 12 is a perspective view showing the configuration of a refrigerant tank in an industrial small ice rapid manufacturing system of the type, and FIG. 12 is a perspective view showing the configuration of a cooling system in an industrial small ice rapid manufacturing system of a continuous circulation method according to an embodiment of the present invention. 13 is a left side view of FIG. 12, and FIG. 14 is a partial front view showing the configuration of an air-cooled refrigerator among the continuous circulation type industrial small ice rapid manufacturing system according to an embodiment of the present invention, and FIG. 15 is a right side view of FIG. .

9 to 15, a continuous circulation type industrial small ice rapid manufacturing system 100' according to an embodiment of the present invention includes a main frame F1, a sub frame F2, and a transfer sprocket SP. ), the transfer tray chain 110, the refrigerant tank 120', the hot air fan 130, the discharge chute 140, the water quantitative discharger 150, the refrigerant circulation pump P1, and the cooling A heat exchanger 160', a binary refrigerator A1, an air-cooled refrigerator A2, an air knife 170, a water storage tank ST1, a water purifier B, a water circulation pump P2, and , A water cooling heat exchanger 180 and a refrigerant storage tank ST2.

First, the main frame (F1), the sub frame (F2), the transfer sprocket (SP), the transfer tray chain 110, the hot air fan 130, the discharge chute 140, the air knife 170, and the water storage tank (ST1) ) And the refrigerant storage tank (ST2) are the same configuration as the conventional continuous circulation type industrial small ice rapid manufacturing system 100 disclosed in FIGS. 2 to 8, and redundant description thereof will be omitted.

In addition, the refrigerant tank 120 ′ is installed on the upper end of the main frame F1 as shown in FIG. 11, and is divided into multiple stages in the longitudinal direction, so that a plurality of refrigerant storage space units S are provided to each refrigerant storage space. The first refrigerant is stored in the unit S and an ice mold M that is moved along the transfer tray chain 110 is immersed. At this time, the first refrigerant is preferably salt water or ethanol to be harmless to the human body when it comes into contact with ice or food. Optionally, different refrigerants may be supplied to the refrigerant storage space S to increase refrigeration efficiency. .

In addition, the refrigerant tank 120 ′ is manufactured in a box shape with urethane hard foam on the side and bottom to minimize heat loss of the first refrigerant at -60°C, and an insulating cover C is installed on the upper surface.

In addition, the refrigerant circulation pump P1 is installed in the sub-frame F2 as shown in FIGS. 12 and 13, and the refrigerant storage space S and the cooling heat exchanger 160 ′ of the refrigerant tank 120 ′ ) Installed between the first refrigerant stored in each refrigerant storage space (S) of the refrigerant water tank (120') to the cooling heat exchanger (160') to exchange heat with the second refrigerant of the cooling heat exchanger (160') The cooled first refrigerant is circulated to each refrigerant storage space S of the refrigerant tank 120 ′.

In addition, the cooling heat exchanger 160 ′ is installed in the sub-frame F2 as shown in FIGS. 12 and 13, and the first refrigerant circulated through the circulation pump P and the second refrigerant of the binary refrigerator A1 The refrigerant is heat-exchanged to cool the first refrigerant to -60°C and supplied to the refrigerant tank 120'.

At this time, each of the cooling heat exchangers 160 ′ is connected to the low temperature stage L of the binary refrigerator A1 to be described below, and exchanges the first refrigerant supplied through the refrigerant circulation pump P1 with the second refrigerant. Primary cooling through a primary cooling heat exchanger 161 connected to the primary cooling heat exchanger 161 for primary cooling to -35℃, the high temperature end (H) and primary cooling heat exchanger of the binary refrigerator (A1) It consists of a secondary heat exchanger 163 that heats the first refrigerant with the second refrigerant and cools it to -60°C. That is, if two binary refrigerators (A1) are provided, the first cooling heat exchanger 161 and the second cooling heat exchanger 163 form a pair and two pairs are installed, and if three binary refrigerators (A1) are provided, 1 The primary cooling heat exchanger 161 and the secondary cooling heat exchanger 163 form a pair, and three pairs are installed.

Subsequently, the binary refrigerator A1 is installed outside the factory as shown in Figs. 12 and 13, and has the same number as the number of refrigerant storage spaces S of the refrigerant tank 120 ′, so that the first refrigerant is The second refrigerant is circulated through each of the cooling heat exchangers 160 ′ to be cooled by heat exchange with the second refrigerant in the cooling heat exchanger 160 ′.

And, each binary refrigerator (A1) has a low temperature stage (L) for cooling the second refrigerant at a relatively low pressure and high temperature, and a high temperature stage (H) for cooling the second refrigerant at a relatively high pressure and low temperature. Consists of At this time, as the second refrigerant, a methane-based refrigerant or a non-azeotropic mixed refrigerant in which an ethane-based and methane-based refrigerant is mixed is preferably applied, and R23 is preferably applied to the low-temperature stage (L) and R404 is applied to the high-temperature stage (H).

Subsequently, the air-cooled refrigerator (A2) is installed on the main frame (F1) as shown in FIGS. 14 and 15 and is connected to any one of the plurality of binary refrigerators (A1) to cool while circulating the third refrigerant. Then, the air is cooled by exchanging heat with air, and the cooled air is discharged to the ice mold M with the transfer tray chain 110 supplied to the water quantitative discharger 150 to cool the ice mold M. At this time, in the air-cooled refrigerator A2, a space is formed by the heat insulating protective wall W so that the cooling air does not leak to the outside, and is installed in the space.

In addition, the water purifier B is installed in the sub-frame F2 to purify water supplied to the water storage tank ST1.

In addition, the water circulation pump P2 is installed in the sub-frame F2 to circulate water in the water storage tank ST1.

In addition, the water cooling heat exchanger 180 is installed in the sub-frame (F2) to connect the water circulated through the water circulation pump (P2) to any one of a plurality of binary refrigerators (A1) to connect a third refrigerant. After cooling while circulating, heat exchange with water to cool water to 5°C, and store the cooled water in a water storage tank (ST1). At this time, the third refrigerant is preferably any one selected from brine, methane, ethane, propane, inorganic compounds, azeotropic mixed refrigerants, and non-azeotropic mixed refrigerants.

Hereinafter, the operation of the continuous circulation type industrial small ice rapid manufacturing system according to the present invention will be described in detail with reference to the accompanying drawings.

First, when the transfer sprocket (SP) is rotated and the transfer tray chain 110 is transferred, the ice mold (M) is rotated together, and at the same time, the ice mold (M) is filled with a quantity of water in the water dispensing machine (150). . At this time, the quantitative water dispenser 150 fills water while moving forward and backward according to the movement of the ice mold M. The water discharged from the water dispensing machine 150 is purified and stored in the water storage tank ST1 by the water purifier B and then circulated to the heat exchanger 180 for cooling water through the water circulation pump P2. It is cooled to 5°C and stored in a water storage tank (ST1).

The ice mold (M) filled with water is advanced along the transfer tray chain 110 and lowered by a guide roller (R) located at the rear of the main frame (F1), and the ice mold (M) is immersed in the refrigerant tank 120 do.

Subsequently, the ice mold M is immersed in the refrigerant tank 120 and moves at a rate of about 2M per minute, and the water changes into ice crystals while being in contact with the first refrigerant at -60°C for 4 to 5 minutes.

The ice mold (M) is advanced from the refrigerant tank 120 along the transfer tray chain 110 and is raised by the guide roller R located in front of the main frame F1, and then located in front of the main frame F1. It is transferred to the transfer sprocket (SP) located at the rear of the main frame (F1) through the lower end of the main frame (F1) in an inverted state along the transfer sprocket (SP) (a state in which ice can be freely dropped). .

In this state, the ice mold (M) is discharged from the ice mold (M) as the ice surface of the ice mold (M) is melted by the hot air while passing through the first and second hot air heaters (131, 133) of the hot air fan (130). Small ice freely falling into the chute 140 and falling again from the discharge chute 140 is moved along a conveyor belt (not shown) and transferred to a packaging line.

Then, the ice mold (M) from which the ice has been removed is cooled by cold air while passing through the space where the air-cooled refrigerator (A2) is installed, and then reversed again in the transfer sprocket (SP) located at the rear of the main frame (F1), and then water In the fixed quantity dispenser 150, the ice mold M is filled with a quantity of water, and the above process is repeated.

At the same time, the first refrigerant stored in each refrigerant storage space (S) of the refrigerant tank 120 is heat-exchanged with the second refrigerant in the primary cooling heat exchanger 161 through the refrigerant circulation pump (P1) to -35°C. After secondary cooling, the first refrigerant cooled to -35℃ in the secondary heat exchanger 163 is heat-exchanged with the second refrigerant, cooled to -60℃, and then supplied to the refrigerant storage space (S). It will maintain a constant temperature.

Meanwhile, the low pressure end (L) of each binary refrigerator (A1) cools the second refrigerant heated by heat exchange with the first refrigerant to a relatively low pressure and high temperature, and the high pressure end (H) is The second refrigerant heated by heat exchange with the first refrigerant is cooled to a relatively high pressure and a low temperature.

And, according to another embodiment of the present invention, a tray (not shown) for mounting frozen food (meat, fish, processed food, etc.) in place of the ice mold M is installed on the transfer tray chain 110, and frozen Food can also be frozen.

The present invention may be variously modified and may take various forms, and in the detailed description of the present invention, only specific embodiments thereof have been described. However, it should be understood that the present invention is not limited to a particular form mentioned in the detailed description, but rather, it is understood to include all modifications, equivalents, and substitutes within the spirit and scope of the present invention as defined by the appended claims. Should be.

The present invention can be applied not only to small ice, but also to freezing of frozen foods.

110: transfer tray chain 120': refrigerant tank
130: hot fan 140: discharge chute
150: quantitative water discharger 160': cooling heat exchanger
170: air knife 180: heat exchanger for water cooling
A1: binary refrigerator A2: air-cooled refrigerator
B: water purifier P1: water circulation pump
P2: refrigerant circulation pump ST1: water storage tank
ST2: Refrigerant storage tank W: Insulation protective wall

Claims (7)

A main frame formed in a rectangular shape;
A sub-frame installed on one side of the main frame;
A transfer sprocket installed at the front and rear ends of the main frame and rotated by a drive motor;
A transfer tray chain continuously rotated along the main frame by the transfer sprocket and in which a plurality of ice molds are installed;
The ice mold is installed on the upper end of the main frame, the first refrigerant is stored therein, and the ice mold moved along the transfer tray chain is immersed, divided into multiple stages, and a plurality of refrigerant storage spaces are provided. A refrigerant tank in which side and bottom surfaces are made of urethane rigid foam in a box shape and an insulating cover is installed on an upper surface to minimize heat loss;
A hot air fan installed at the lower end of the main frame and immersed in the refrigerant tank to apply hot air to the frozen ice mold;
A discharge chute installed at the lower end of the main frame to discharge small ice falling from the ice mold by the hot air of the hot air fan;
A water quantitative dispenser installed on one side of the upper end of the main frame to fill the ice mold with water;
A plurality of refrigerant circulation pumps installed in the sub-frame and circulating the first refrigerant stored in each refrigerant storage space of the refrigerant tank;
A plurality of cooling heat exchangers installed in the sub-frame and cooling the first refrigerant circulated through each of the refrigerant circulation pumps and supplying them to each of the refrigerant storage spaces;
A plurality of binary refrigerators installed outside to circulate the second refrigerant to each of the cooling heat exchangers so that the first refrigerant is heat-exchanged with the second refrigerant in the cooling heat exchanger and cooled; And
It is installed on the main frame, is connected to any one of the plurality of binary refrigerators, cooled while circulating a third refrigerant, and then heat-exchanged with air to cool the air, and the cooled air is supplied to the quantitative water discharger. An industrial small-sized ice rapid manufacturing system of a continuous circulation method, characterized in that comprising an air-cooled refrigerator that cools the ice mold by discharging it to the ice mold with the transfer tray chain. The method of claim 1,
The continuous circulation type industrial small ice rapid manufacturing system,
An air knife installed on the main frame to remove the first refrigerant by spraying air into the ice mold discharged from the refrigerant tank;
A water storage tank installed on the sub-frame and supplying water to the quantitative water dispenser;
A water purifier installed on the sub-frame to purify water supplied to the water storage tank;
A water circulation pump installed on the sub-frame to circulate water in the water storage tank;
The water installed in the sub-frame and circulated through the water circulation pump is connected to any one of the plurality of binary refrigerators to cool while circulating a third refrigerant, and heat exchange with water to cool the water to 5°C. , A water cooling heat exchanger for storing cooled water in the water storage tank; And
It is installed in the vicinity of the sub-frame, and further comprises a refrigerant storage tank for replenishing the first refrigerant in each refrigerant storage space of the refrigerant tank through each of the circulation pumps. Manufacturing system. delete The method of claim 1,
Each of the binary freezers,
A low temperature stage for cooling the second refrigerant at a relatively low pressure and a high temperature;
An industrial small ice rapid manufacturing system of a continuous circulation method, characterized in that it consists of a high temperature stage that cools the second refrigerant at a relatively high pressure and low temperature. The method of claim 4,
The plurality of cooling heat exchangers,
A primary cooling heat exchanger connected to the low temperature end of the binary refrigerator to heat exchange the first refrigerant supplied through the refrigerant circulation pump with the second refrigerant for primary cooling to -35°C;
Consisting of a secondary heat exchanger that is connected to the high temperature end of the binary refrigerator and the primary cooling heat exchanger and heat-exchanges the first refrigerant that has been first cooled through the primary cooling heat exchanger with the second refrigerant to cool it to -60°C. Industrial small ice rapid manufacturing system of continuous circulation method characterized by. The method of claim 1,
The air-cooled refrigerator,
An industrial small ice rapid manufacturing system of a continuous circulation method, characterized in that the space is partitioned within the insulating protective wall so that the cooling air does not leak to the outside, and is installed in the partitioned space. The method of claim 1,
The first refrigerant,
Is brine or ethane,
The second refrigerant,
It is a non-azeotropic mixed refrigerant in which methane-based or ethane-based and methane-based are mixed,
The third refrigerant,
Brine, methane, ethane, propane, inorganic compounds, azeotropic mixed refrigerant, non-azeotropic mixed refrigerant, characterized in that any one selected from a continuous circulation type industrial small ice rapid manufacturing system, characterized in that.

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