WO2022055051A1

WO2022055051A1 - Continuous circulation-type industrial rapid ice-making system for small-sized ice

Info

Publication number: WO2022055051A1
Application number: PCT/KR2021/001178
Authority: WO
Inventors: 임종호
Original assignee: (주)제이엘피엔지니어링; 주식회사 인포벨리코리아
Priority date: 2020-09-10
Filing date: 2021-01-28
Publication date: 2022-03-17
Also published as: CN114251885A; KR102183632B1

Abstract

The present invention relates to an industrial rapid ice-making system for small-sized ice and, specifically, to a continuous circulation-type industrial rapid ice-making system for small-sized ice, wherein a water tank is divided into multiple stages, and a plurality of heat exchangers and two-stage cascade refrigerators are installed to cool and supply water for ice-making, and primarily and secondarily cool a refrigerant for ice-making and supply same to the respective divided water tank stages so as to maintain the refrigerant at a constant temperature, whereby homogeneous ice is made.

Description

Industrial compact ice rapid manufacturing system with continuous circulation method

The present invention relates to a small industrial ice rapid manufacturing system, and more particularly, a water tank is divided into multiple stages, a plurality of heat exchangers and a dual refrigerator are installed to cool and supply water for ice manufacturing, and a refrigerant for ice manufacturing is provided. , to a small industrial ice rapid manufacturing system of a continuous circulation method, in which the refrigerant is maintained at a constant temperature by secondary cooling and supplied to a divided water tank, respectively, to produce homogeneous ice.

In general, ice is used for various purposes in various industries such as aquatic products and poultry processing and freshness maintenance, food processing, and chemical plants. and prevent corruption.

In this way, ice is widely used in various industrial fields. A large amount of ice is produced by an industrial ice maker, ice is crushed by an industrial ice breaker, and temporarily stored in an industrial high-capacity storage storage, ice storage, for secondary supply to each supplier in need of ice. will do

Such an industrial ice maker injects sterilized water into a large rectangular ice cube in a certain amount and immerses the large ice cube in a cooling solution at 9°C to freeze the water in the ice cube.

Then, inside the large ice cube, the water starts to freeze from the edge, and when it freezes to a certain extent, it is taken out, washed, and then crushed with an ice breaker before packing.

However, it is necessary to install such a large industrial ice maker and a commercial ice breaker, but there are problems in that expensive equipment is required and the investment cost is increased because the installation area is wide.

On the other hand, as the ice making method, air freezing method, contact freezing method, immersion freezing method, liquefied gas freezing method, low temperature osmotic pressure dehydration freezing method, etc. have been disclosed.

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

The apparatus for manufacturing an ice container is an apparatus for manufacturing an ice container as shown in FIG. 1, comprising: a body frame 10 having a plurality of rolling wheels 12 installed as a bottom surface thereof; a moving frame 20 that installs a raw material tank 22 and a circulation tank 24 as an upper portion of the body frame 10 and is fixed by moving cylinders 25 installed on both sides as a lower portion thereof and reciprocates; The guide rods 32 formed on both sides of the lower portion of the moving frame 20 are guided by the guide rods 26 formed on the moving frame 20, and a plurality of spiral shafts each having upper molds 34 formed at the lower end thereof. The upper mold part 30 composed of a fixed frame 38 to which 35 is fastened and elevated 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 that is connected to the raw material tank 22 and the supply pipe on one side in the middle of the body frame 10 and is provided with a drain passage 42 and a drain hole 44 on the upper surface so that a plurality of lower molds 45 are detachable. (40) and; a transfer conveyor unit 50 on which a plurality of transfer rollers 54 driven by a driving motor 52 and a transfer belt 56 are installed toward the cooling tank 40; A circulation pump 60 for circulating water received by connecting the circulation tank 24 and the cooling tank 40 to the lower part of the body frame 10 is installed, and one side thereof is connected to the cooling tank 40 to connect the refrigerant It is composed of a plurality of refrigerators 70 that circulate.

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

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

As shown in FIGS. 2 to 8 , the continuous circulation type industrial small ice rapid manufacturing system 100 includes a main frame F1, a subframe F2, a transport sprocket SP, and a transport tray chain ( 110), an ethanol water tank 120, a hot air fan 130, a discharge chute 140, a water metering dispenser 150, a circulation pump P, a heat exchanger 160, 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 dispenser 150 into the ethanol tank 120 , and the ice mold M cooled in the ethanol tank 120 . A pair of guide rollers (R) are provided at the front and rear ends to raise the .

In addition, 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 driving motor M, and reverses the ice mold M moving along the upper part of the main frame F1 to lower it. It is transferred and reversed when moving from the lower part to the upper part again.

In addition, the transfer tray chain 110 is continuously rotated along the main frame F1 by the 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, has a rectangular tray shape, and both ends are fixed to the transfer tray chain 110 .

Subsequently, the ethanol tank 120 is installed on the upper end of the main frame F1 , and the ice mold M that stores ethanol as a refrigerant therein and moves along the transfer tray chain 110 is immersed therein. At this time, the ethanol tank 120 is provided with a plurality of discharge control valves (V1) and a plurality of supply control valves (V2) on the bottom surface, the ethanol is collected from the discharge control valve (V1), the supply control valve (V2) A plurality of grooves 121 bent downward so as not to interfere with the ice mold M are formed, and a discharge control valve V1 and a supply control valve V2 are installed in the grooves 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).

And, the ethanol tank 120 controls the uniform amount and flow of the ethanol tank 120 through the discharge control valve (V1) and the supply control valve (V2) to smooth the flow of ethanol as a whole, In order to minimize the heat loss of ethanol at 60° C., it is preferable to make it in the form of a box with urethane rigid foam.

Subsequently, the hot air blower 130 is immersed in the ethanol water tank 120 to apply hot air to the ice mold M that has been completely frozen, the primary hot air heater 131 installed at the bottom of the ethanol water tank 120 in the main frame F1. ) 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 primary and secondary

hot air heaters

131 and 133 have a structure that generates heat through a hot wire to discharge hot air to a blower fan, and the secondary hot air heater 133 has a higher temperature than the primary hot air heater 131 . It can also release the hot air of

In addition, the discharge chute 140 is installed at the lower end of the main frame F1 and is dropped from the ice mold M by the hot air generated by the primary and secondary

hot air heaters

131 and 133 of the hot air fan 130 . emits At this time, it is preferable that the discharge chute 140 is formed in the form of a hopper open on one side so that the small ice falls and is discharged while sliding.

In addition, the water dispenser 150 includes a bracket body 151 , a water injection cylinder module 153 , a pressure module 155 , an elevation 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.

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

The pressurization module 155 is installed to move up and down by the vertical rod 156 at the upper portion of the water injection cylinder module 153 to pressurize the water injection cylinder module 153 to thereby pressurize the water injection cylinder module 153 of the water injection cylinder module 153 . (153a) is pressurized to discharge the water inside. The pressurization module 155 has an auxiliary water storage tank (ST3) that receives and stores water from the water storage tank (ST1) to fill water into each water injection cylinder (153a) of the water injection cylinder module 153 on the upper part. provided

The elevating module 157 is a pneumatic, hydraulic cylinder that is vertically connected and installed on the upper surface of the pressurizing module 155 to elevate the pressurizing module 155 .

The sliding module 159 is installed horizontally on the top 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 ethanol heated in the ethanol tank 120 through the discharge line (L1) is supplied to the heat exchanger 160 and discharged to the heat exchanger (160) The cooled ethanol is circulated to the ethanol bath 120 through the supply line L2.

In addition, the heat exchanger 160 is installed in the sub-frame F2, cools the ethanol circulated through the circulation pump P, and supplies it to the ethanol tank 120.

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

In addition, the water storage tank ST1 is installed on the upper end of the sub-frame F2 to supply water to the fixed water dispenser 150 .

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

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

In addition, in the conventional continuous circulation type industrial small rapid ice production system, the ice mold is heated with a hot air blower to drop the ice, and then the ice mold whose temperature has risen is put into the ethanol tank, which causes dew condensation on the ice mold. There is another problem in that the ethanol is diluted and the refrigeration performance is deteriorated.

In addition, in the conventional continuous circulation type industrial small rapid ice production system, since the upper surface of the ethanol tank is exposed to the outside air, heat is discharged to the outside air, thereby lowering the refrigeration efficiency, and thus there is another problem in that a lot of energy is consumed. .

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

(Patent Document 001) Republic of Korea Patent Publication No. 10-2003-0039535

(Patent Document 002) Republic of Korea Patent Publication No. 10-2116881

In order to solve the above problems, the present invention divides the water tank into multiple stages, installs a plurality of heat exchangers and a dual refrigerator to cool and supply water for ice production, and supply refrigerant for ice production in primary and secondary stages. An object of the present invention is to provide a small industrial ice rapid manufacturing system of a continuous circulation method that cools and supplies each of the divided water tanks to maintain the refrigerant at a constant temperature to produce homogeneous ice.

In addition, the present invention provides a continuous method to prevent dew condensation from occurring in the ice mold by heating the ice mold with a hot air blower to drop ice and then cooling the ice mold whose temperature has risen to prevent the ethanol from being diluted and the refrigeration performance from being deteriorated. Another object of the present invention is to provide a small-scale industrial ice rapid manufacturing system of a circulation type.

Another aspect of the present invention is to provide an industrial small ice rapid manufacturing system of a continuous circulation method that can increase energy efficiency by relatively increasing refrigeration efficiency by preventing exposure to outside air by installing an insulating cover on the upper surface of the refrigerant tank. There is a purpose.

Another object of the present invention is to provide a small industrial ice rapid manufacturing system of a continuous circulation method that purifies tap water or groundwater with a water purifier and then stores it in a water storage tank to produce edible ice in an area with poor water quality. there is.

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 driving motor; a transfer tray chain continuously rotated along the main frame by the transfer sprocket and provided with a plurality of ice molds; a refrigerant tank installed at the upper end of the main frame, the first refrigerant as a refrigerant is stored therein, the ice mold moving along the transfer tray chain is immersed, and the refrigerant tank is divided into multiple stages and provided with a plurality of refrigerant storage spaces; a hot air blower installed at the lower end of the main frame to apply hot air to the ice mold immersed in the refrigerant tank to complete freezing; 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 blower; a water dispenser installed at an upper end of the main frame to fill the ice mold with water; a plurality of refrigerant circulation pumps installed in the subframe 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 ethanol circulation pumps and supplying them to the respective refrigerant storage spaces; a plurality of dual refrigerators installed outside to circulate a second refrigerant to each of the cooling heat exchangers so that the first refrigerant exchanges heat with the second refrigerant in the cooling heat exchanger to be cooled; and installed on the main frame, connected to any one of the plurality of dual refrigerators, cooled while circulating the third refrigerant, and then heat exchanged with air to cool the air, and supply the cooled air to the water dispenser It is characterized in that it consists of an air-cooled freezer that cools the ice mold by discharging it to the ice mold with the transfer tray chain.

Here, the continuous circulation type industrial small rapid ice production system includes: 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 water dispenser; a water purifier installed on the sub-frame to purify water supplied to the water storage tank; a water circulation pump installed in the sub-frame to circulate water in the water storage tank; Installed in the sub-frame, water circulated through the water circulation pump is connected to any one of the plurality of dual refrigerators to cool the third refrigerant while circulating, and then heat exchange with water to cool the water to 5° C. , a water cooling heat exchanger for storing the cooled water in the water storage tank; and a refrigerant storage tank installed in the vicinity of the sub-frame to replenish the first refrigerant in each refrigerant storage space of the refrigerant water tank through each of the circulation pumps.

Here also, the refrigerant tank,

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

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

Here, the plurality of cooling heat exchangers are connected to the low-temperature end of the dual refrigerator and heat-exchange the first refrigerant supplied through the refrigerant circulation pump with the second refrigerant, and a primary cooling heat exchanger for primary cooling to -35°C; It is connected to the high-temperature end of the dual refrigerator and the primary cooling heat exchanger, and is configured as a secondary heat exchanger for heat-exchanging the first refrigerant cooled primarily through the primary cooling heat exchanger with the second refrigerant for secondary cooling to -60°C.

Here, the air-cooled refrigerator partitions a space within the heat insulation protective wall so that the cooling air and the outside do not flow out, 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, Any one selected from propane, inorganic compounds, azeotropic refrigerants, and non-azeotropic refrigerants.

According to the present invention, which is a continuous circulation type rapid industrial ice production system configured as described above, the water tank is divided into multiple stages, a plurality of heat exchangers and a dual refrigerator are installed to cool and supply water for ice production, and to produce ice. By cooling the refrigerant for the first and second phases and supplying it to the divided water tanks, the refrigerant is maintained at a constant temperature to produce homogeneous ice, and small ice can be manufactured in a short time.

In addition, according to the present invention, it is possible to prevent dew condensation in the ice mold by heating the ice mold with a hot air blower to drop the ice and then cooling the ice mold whose temperature has risen, thereby preventing the ethanol from being diluted and reducing the freezing performance. there is.

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

In addition, according to the present invention, edible ice can be manufactured in an area 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-layer structure for rapid freezing of foods.

2 to 8 are diagrams illustrating the configuration of a conventional continuous circulation type industrial small-sized rapid ice production system.

9 is a perspective view showing the configuration of a small industrial ice rapid manufacturing system of a continuous circulation method according to an embodiment of the present invention.

FIG. 10 is a front view of FIG. 9 ;

11 is a perspective view illustrating a configuration of a refrigerant tank in a continuous circulation type industrial small rapid ice production system according to an embodiment of the present invention.

12 is a perspective view showing the configuration of a cooling system in a continuous circulation type industrial small ice rapid manufacturing system according to an embodiment of the present invention.

13 is a left side view of FIG. 12 .

14 is a partial front view illustrating the configuration of an air-cooled refrigerator in a continuous circulation type industrial small ice rapid manufacturing system according to an embodiment of the present invention.

FIG. 15 is a right side view of FIG. 14 ;

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

In the following description of the present invention, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

9 is a perspective view showing the configuration of an industrial small rapid ice production system of a continuous circulation method 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. 12 is a perspective view showing the configuration of a refrigerant tank in a small-scale industrial ice rapid manufacturing system according to the present invention, and FIG. 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 a 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 rapid ice production 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 water tank 120 ′, the hot air fan 130 , the discharge chute 140 , the water fixed discharge unit 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, and a water circulation pump P2 , 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) have the same configuration as the conventional continuous circulation type industrial small ice rapid manufacturing system 100 shown in FIGS. 2 to 8 , and a duplicate description thereof will be omitted.

In addition, the refrigerant tank 120 ′ is installed at 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 spaces S are provided, so that each refrigerant storage space The first refrigerant is stored in the portion S and the ice mold M moved along the transfer tray chain 110 is immersed. In this case, the first refrigerant is preferably brine or ethanol-based so that it is harmless to the human body when it comes into contact with ice or food. .

In addition, the refrigerant tank 120' is manufactured in the form of a box with the side and bottom surfaces of the urethane rigid foam in order to minimize the 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, each refrigerant storage space (S) of the refrigerant water tank (120') and the cooling heat exchanger (160') ) installed between the first refrigerants and stored in each refrigerant storage space (S) of the refrigerant tank 120' to the cooling heat exchanger 160', respectively, 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 on the sub frame F2 as shown in FIGS. 12 and 13 , and the first refrigerant circulated through the circulation pump P and the second of the dual refrigerator A1 . The first refrigerant is cooled to -60°C by exchanging the refrigerant and supplied to the refrigerant tank 120'.

At this time, each cooling heat exchanger 160 ′ is connected to the low-temperature stage L of the dual refrigerator A1 to be described below and heat-exchanges the first refrigerant supplied through the refrigerant circulation pump P1 with the second refrigerant. The primary cooling heat exchanger 161 for primary cooling to -35° C. is connected to the high temperature end (H) and the primary cooling heat exchanger of the dual refrigerator (A1) for primary cooling through the primary cooling heat exchanger 161 It is composed of a secondary heat exchanger 163 for secondary cooling to -60 ℃ by heat-exchanging the first refrigerant with the second refrigerant. That is, when two binary refrigerators A1 are provided, the primary cooling heat exchanger 161 and the secondary cooling heat exchanger 163 form a pair and two pairs are installed, and when 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 the same number as the number of refrigerant storage spaces S of the refrigerant tank 120 ′ is provided so that the first refrigerant is The second refrigerant is circulated to 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 of the dual refrigerators (A1) has a low temperature stage (L) for cooling the second refrigerant to a relatively low pressure and high temperature, and a high temperature stage (H) for cooling the second refrigerant to a relatively high pressure and low temperature is composed of At this time, as the second refrigerant, a methane-based refrigerant or a non-azeotropic mixed refrigerant of ethane and methane is 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 , is connected to any one of the plurality of dual refrigerators A1, and is cooled while circulating the third refrigerant. Then, the air is cooled by heat exchange with the air, and the cooled air is discharged to the ice mold M with the transfer tray chain 110 supplied to the fixed water dispenser 150 to cool the ice mold M. At this time, in the air-cooled refrigerator (A2), a space is formed by the insulating protective wall (W) so that the cooling air and the outside do not flow out, and is installed in the space.

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

In addition, the water circulation pump (P2) is installed in the sub-frame (F2) circulates the water in the water storage tank (ST1).

In addition, the water cooling heat exchanger 180 is installed in the sub-frame F2 and connected to any one of the plurality of dual refrigerators A1 for water circulated through the water circulation pump P2, and the third refrigerant After cooling while circulating, heat exchange with water to cool the water to 5° C., and store the cooled water in the water storage tank ST1. In this case, as the third refrigerant, any one selected from brine, methane-based, ethane-based, propane, inorganic compound, azeotropic refrigerant, and non-azeotropic refrigerant is preferably applied.

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

First, when the transfer sprocket SP is rotated to transfer the transfer tray chain 110 , the ice mold M rotates together, and at the same time, the water dispenser 150 fills the ice mold M with a fixed amount of water. . At this time, the water dispenser 150 is filled with water while moving forward and backward according to the movement of the ice mold M. On the other hand, water discharged from the fixed water dispenser 150 is purified and stored in the water storage tank ST1 by the water purifier B, and then is circulated to the water cooling heat exchanger 180 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 transport tray chain 110 and is lowered by the 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, while the ice mold M is immersed in the coolant tank 120 and moved at a speed of about 2M per minute, the water is changed into ice crystals while 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 transport tray chain 110, is raised by the guide roller R located in front of the main frame F1, and then is 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 (the state in which the ice stands vertically to allow free fall). .

In this state, as the ice mold M passes the primary and secondary

hot air heaters

131 and 133 of the hot air blower 130 , the ice surface of the ice mold M is melted by the hot air and discharged from the ice mold M The small ice that falls freely into the chute 140 and falls 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 inverted again at 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 ℃ 1 After secondary cooling, the first refrigerant cooled to -35°C again in the secondary heat exchanger 163 is heat-exchanged with the second refrigerant to be secondarily cooled to -60°C and then supplied to the refrigerant storage space (S). maintain a constant temperature.

On the other hand, the low-pressure stage L of each dual 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 stage H is the second refrigerant. The second refrigerant heated by heat exchange with the first refrigerant is cooled to a relatively high pressure and low temperature.

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

The present invention may be variously modified and may take various forms, and in the detailed description of the invention, only specific embodiments thereof have been described. However, it is to be understood that the present invention is not limited to the particular form recited in the detailed description, but rather, it is to be understood to cover all modifications and equivalents and substitutions falling 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 food.

110: transfer tray chain 120′: refrigerant tank

130: hot air fan 140: exhaust chute

150: water quantitative discharger 160′: cooling heat exchanger

170: air knife 180: water cooling heat exchanger

A1: Binary chiller A2: Air-cooled chiller

B: Water purifier P1: Water circulation pump

P2: Refrigerant circulation pump ST1: Water storage tank

ST2: Refrigerant storage tank W: Thermal insulation protection wall

Claims

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 driving motor;

a transfer tray chain continuously rotated along the main frame by the transfer sprocket and provided with a plurality of ice molds;

a refrigerant tank installed on the upper end of the main frame, the first refrigerant stored therein, the ice mold moving along the transfer tray chain is immersed, and the refrigerant tank is divided into multiple stages and provided with a plurality of refrigerant storage spaces;

a hot air blower installed at the lower end of the main frame to apply hot air to the ice mold immersed in the refrigerant tank to complete freezing;

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 blower;

a water dispenser installed at an upper end of the main frame to fill the ice mold with water;

a plurality of refrigerant circulation pumps installed in the subframe 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 ethanol circulation pumps and supplying them to the respective refrigerant storage spaces;

a plurality of dual refrigerators installed outside to circulate a second refrigerant to each of the cooling heat exchangers so that the first refrigerant exchanges heat with the second refrigerant in the cooling heat exchanger to be cooled; and

Installed on the main frame, connected to any one of the dual refrigerators among the plurality of dual refrigerators, cooled while circulating the third refrigerant, heat exchanged with air to cool the air, and the cooled air is supplied to the water dispenser and an air-cooled freezer cooling 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 comprises:

an air knife installed in 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 water dispenser;

a water purifier installed on the sub-frame to purify water supplied to the water storage tank;

a water circulation pump installed in the sub-frame to circulate water in the water storage tank;

Installed in the sub-frame, water circulated through the water circulation pump is connected to one of the plurality of dual refrigerators to cool while circulating the third refrigerant, and then heat exchange with water to cool the water to 5 ° C. , a water cooling heat exchanger for storing the cooled water in the water storage tank; and

The continuous circulation type of industrial small ice rapid, characterized in that it further comprises a refrigerant storage tank installed near the sub-frame and replenishing the first refrigerant in each refrigerant storage space of the refrigerant tank through each of the circulation pumps. manufacturing system.
The method of claim 1,

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 the form of a box, and an insulating cover is installed on the upper surface.
The method of claim 1,

Each of the binary refrigerators,

a low-temperature stage for cooling the second refrigerant to a relatively low pressure and high temperature;

A small-scale industrial 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.
5. The method of claim 4,

The plurality of cooling heat exchangers,

a primary cooling heat exchanger connected to the low-temperature end of the dual refrigerator to heat-exchange the first refrigerant supplied through the refrigerant circulation pump with the second refrigerant to primary cooling to -35°C;

It is connected to the high-temperature end of the dual refrigerator and the primary cooling heat exchanger, and is configured as a secondary heat exchanger that heats the first refrigerant cooled primarily through the primary cooling heat exchanger with the second refrigerant to secondary cooling to -60 ° C. Industrial compact ice rapid manufacturing system with continuous circulation method.
4. The method of claim 3,

The air-cooled refrigerator,

A continuous circulation type industrial small ice rapid manufacturing system, characterized in that the space is partitioned within the insulating protective wall so that the cooling air and the outside do not flow out, and the space is installed in the partitioned space.
The method of claim 1,

The first refrigerant is

brine or ethane,

The second refrigerant is

It is a non-azeotropic mixture of methane-based or ethane-based and methane-based refrigerants,

The third refrigerant is

A continuous circulation type industrial small rapid ice production system, characterized in that any one selected from brine, methane-based, ethane-based, propane, inorganic compound, azeotropic refrigerant, and non-azeotropic refrigerant.