KR200268357Y1 - Cooling apparatus using night electricity - Google Patents

Abstract

The present invention relates to an ice storage heat-cooling device using a midnight electricity, in the ice storage heat-cooling device for supplying the cooling water by melting the ice frozen in the freezer unit, is fixed to the upper portion of the ice storage heat tank having a cooling water discharge pipe, the gas of the freezer unit A plurality of plate-shaped ice making units connected to a supply line and a gas recovery line to freeze water supplied to the outside by refrigerant gas circulating therein; A plurality of injection pipes installed in a circulation pump and connected to a pumping pipe for pumping cooling water from the bottom side of the ice storage tank to spray water to both sides of each of the plate-shaped ice making units; A pair of icebreaking rollers installed horizontally parallel to directly below the plate-shaped ice making unit, and rotating in a reverse direction with a plurality of grinding blades attached to an outer circumferential surface thereof to crush the plate-shaped ice that is frozen after being frozen in the plate-shaped ice making unit. Wow; A national rod for fixed level installed vertically on one side of the ice storage tank and having a high and low water level sensor and a medium water level sensor for detecting a storage amount of cooling water; The air blower is connected to the air transfer pipe is installed, the invention is characterized in that it comprises a plurality of pipes installed on the bottom of the ice heat storage tank to aeration the cooling water in the tank.

Description

Cooling apparatus using night electricity {Cooling apparatus using night electricity}

The present invention relates to an ice storage heat-cooling device using a night-time electricity to produce a supercooled water close to 0 ℃ from the produced ice after repeated production of ice using a cheap night-time electricity.

In food manufacturing and processing plants, cooling water is used to maintain the freshness of the food. The cooling water is mainly obtained by using a freezer unit.

Since the refrigerator unit is driven by electrical energy, when the power cost is high, the power consumption ratio of the cooling device using the freezer unit becomes high, and when the power ratio is low, the power consumption ratio of the cooling device becomes that much.

Accordingly, ice storage heat-cooling devices that can obtain cooling water by using midnight electricity having low power costs have been proposed.

The conventional ice storage heat-cooling device connects a refrigerant supply pipe and a refrigerant recovery pipe of a refrigerator unit to a spiral pipe coil installed spirally inside a water tank, and then circulates refrigerant through the spiral pipe coil and simultaneously sprays water onto the spiral pipe coil. After the frozen water is frozen by heat exchange with the refrigerant flowing inside the spiral tube coil, the ice is melted to obtain cooling water.

However, the prior art as described above has the following problems.

First, spiral spiral coils installed inside the water tank have to widen the gap between coils in order to allow ice to freeze on the surface, so the surface cross-sectional area of spiral spiral coils per unit area is small. little.

Second, since water must be melted by spraying frozen ice on the outer circumferential surface of the spiral tube coil, the cooling water itself is in a state where the water temperature is raised by the temperature of the water used to melt the ice. When the amount of injection increases and the amount of water injection decreases when it is to be slowly dissolved, the temperature of the cooling water is not constant, there are many changes, and it is difficult to obtain a cooling water close to 0 ° C.

Third, it is pointed out that not only is the yield of ice limited but also the amount of cooling water per day is smaller than that of the water tank because the ice frozen in the spiral tube coil is used during the day by using midnight electricity at night. .

The present invention has been made to solve the problems described in the prior art as described above, the operation of freezing the ice to the thickness set on both sides of the plurality of ice making unit in the plate shape on the inner upper side of the ice storage tank dropping the frozen ice Its purpose is to produce and store a large amount of ice by repetitive operation, and also to obtain subcooled water close to 0 ℃ by crushing the ice dropped from the ice making unit into small size and storing it with water. Another purpose is to reduce the ice-making time by spraying the coolant stored in the ice storage tank to the ice making unit and freezing the ice.In addition, the tank bottom when there are more pieces of ice than the coolant dissolved in the ice storage tank. Aeration of cold air on the side to ensure good thawing On the other hand, one will place a still another object to becomes large the amount of the cooling water stored in the ice thermal storage tank during the day will appear when the shortage of the cooling water to be supplied to the makeup water in the tank quickly obtain a required amount of cooling water invention.

The present invention as a means for achieving the above object,

In the ice storage cooling device for supplying cooling water by freezing water using a refrigerant gas circulating the freezer unit and then melting ice,

A plurality of plate-shaped ice making units fixedly installed on the inner side of the ice storage tank equipped with a cooling water discharge pipe and connected to the gas supply line and the gas recovery line of the refrigerator unit to freeze water supplied by the refrigerant gas circulating inside. Wow;

A plurality of injection pipes installed in a circulation pump and connected to a pumping pipe for pumping cooling water from the bottom side of the ice storage tank to spray water to both sides of each of the plate-shaped ice making units;

A pair of icebreaking rollers installed horizontally parallel to directly below the plate-shaped ice making unit, and rotating in a reverse direction with a plurality of grinding blades attached to an outer circumferential surface thereof to crush the plate-shaped ice that is frozen after being frozen in the plate-shaped ice making unit. Wow;

A national rod for fixed level installed vertically on one side of the ice storage tank and having a high and low water level sensor and a medium water level sensor for detecting a storage amount of cooling water;

A plurality of aeration pipes installed at the bottom of the ice storage tank connected to an air transfer pipe having an air blower installed therein to aeration the cooling water in the tank;

It is characterized by consisting of,

In addition, by installing the solenoid valve on the gas supply line of the freezer unit and connecting the hot gas line installed in the freezer unit to the solenoid valve, after freezing of ice on both sides of the plate-shaped ice making unit, the freezer through the gas recovery line The hot gas recovered to the unit is circulated to the plate ice-making unit, and the plate ice-making unit is heated so that the frozen ice falls while melting by heat.

1 is an overall configuration for explaining the present invention.

2 is an arrangement of the components installed in the ice storage tank of the present invention

Shown perspective view.

3 and 4 is a cross-sectional view taken along line A-A of Figure 1 operating state of the present invention.

5 is a cross-sectional view of the plate-shaped ice making unit of the present invention.

※ Explanation of code for main part of drawing

1: Ice storage tank 2: Refrigerator unit

3: plate-shaped ice-making unit 4a, 4b: a pair of ice-break rollers

5: motor 6: electrode for level detection

7: injection pipe 8: width pipe

9: supplemental water supply pipe 11: coolant reservoir

12: water feed pump 13: discharge pipe

21: gas supply line 22: gas recovery line

23: hot gas line 24: solenoid valve

31: gas circulation pipe 41,42: grinding blade

51: drive shaft 52: drive gear

53: interlocking gear 54: interlocking shaft

61: high water level sensor 62: low water level sensor

63: intermediate level sensor 71: pumping pipe

72: circulation pump 81: air transfer pipe

82: air blower 92: make-up water closing valve

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall configuration diagram for explaining the present invention, Figure 2 is a perspective view showing the arrangement of the components installed in the ice storage tank of the present invention, Figure 3 and Figure 4 is a cross-sectional view of the AA line of FIG. 5 is an operation state diagram of the subject innovation, and FIG.

Reference numeral 1 denotes an ice storage tank and reference numeral 2 denotes a refrigerator unit. The ice storage tank 1 and the refrigerator unit 2 are provided separately.

In the upper portion of the ice storage tank (1), a plurality of plate-shaped ice making units (3) in the form of plates are fixed horizontally at appropriate intervals while being vertically installed, and just below the plate-shaped ice making unit (3) A pair of icebreaking rollers 4a and 4b which are rotated in opposite directions as if the gears are engaged with each other and installed opposite to each other are provided. The lower portion of the icebreaking rollers 4a and 4b consists of a coolant storage chamber 11. have.

The refrigerator unit 2 is a compressor, a condenser, an evaporator, an expansion to compress, condense, and expand the refrigerant to the plate-shaped ice making unit 3 and circulate the same as a conventional refrigeration cycle therein. A valve and the like are installed, and the refrigerator unit 2 and the plate-shaped ice making unit 3 are connected to a pipeline (pipe) for circulating a refrigerant gas, which is a gas supply line 21 and a gas recovery line ( 22).

The gas supply line 21 is connected to supply the refrigerant gas supplied from the freezer unit 2 to the plurality of plate-shaped ice making units 3, and the gas recovery line 22 is the plurality of plate-shaped ice making units 3. It is connected to recover the refrigerant gas circulated inside to the freezer unit (2).

The plurality of plate-shaped ice making units 3 are supplied from the refrigerator unit 2 and sprayed to both sides by a heat exchange action of the refrigerant gas circulated to the gas circulation pipe 31 through the gas supply line 21. It is to act to freeze the ice by cooling the ice, and when the ice is frozen to a predetermined thickness on each side of the plurality of plate-shaped ice making unit (3), hot gas to the gas circulation tube (31) to drop the frozen ice. In this configuration, a bypass line (not shown) is provided inside the refrigerator unit 2 to bypass the hot refrigerant gas recovered by the gas recovery line 22 and to supply the hot refrigerant gas to the hot gas line 23. The end of the hot gas line 23 connected to the refrigerator unit 2 is connected to the solenoid valve 24 installed on the gas supply line 21.

The solenoid valve 24 installed on the gas supply line 21 is a hot gas line when the refrigerant gas is supplied to the gas circulation pipe 31 of the plate-shaped ice making unit 3 through the gas supply line 21. 23) to block the gas supply line 21 to supply hot refrigerant gas through the hot gas line 24 to the gas circulation pipe 31 of the plate-shaped ice making unit (3). As described above, the solenoid valve 24 is configured to be automatically controlled by a control device (not shown).

The pair of icebreaking rollers 4a and 4b are configured to rotate by receiving power from a motor 5 installed on one side of the ice storage tank 1, and the icebreaking roller 4a of one side is driven by the drive shaft 51 of the motor 5. ), And the other side ice-cream roller 4b is installed in the state connected to the interlocking shaft 54 which the interlocking gear 53 meshed with the drive gear 52 fixed to the drive shaft 51 is condensed. Therefore, the pair of ice-breaking rollers 4a and 4b are rotated in opposite directions by the drive gear 51 and the interlocking gear 53 which rotate in the engaged state.

On the outer circumferential surface of each of the pair of icebreaking rollers 4a and 4b, a plurality of rows of grinding blades 41 and 42 for crushing the plate-like ice dropped from the plate-shaped ice making unit 3 are projected radially. Also, the grinding blades 41 and 42 arranged in a plurality of rows in each of the pair of icebreaking rollers 4a and 4b are arranged in a staggered state to finely crush the plate ice.

Between the plurality of plate-shaped ice making units and the pair of ice-making rollers inside the ice heat storage tank 1, an inclined plate 12 which causes the plate-like ice to be dropped after being frozen to a thickness set by the plate-shaped ice-making unit falls into a pair of ice-ice rollers is provided. It is installed.

One side of the coolant storage chamber 11 of the ice storage tank 1 is equipped with a high and low level sensor 61 and 62 for detecting a high and low level of the coolant and a medium level sensor 63 for detecting an intermediate level of the coolant. The electrode 6 is installed vertically, and each of the high and low level sensors 61 and 62 detects the highest and lowest level of the coolant stored in the coolant storage chamber 11 and does not show the signal. And the intermediate level sensor 63 also detects the intermediate level of the coolant stored in the coolant storage chamber 11 and sends a signal to the controller, which is not shown. It is configured to automatically control the ice storage cooling system.

The inner upper part of the ice storage tank (1) is provided with a plurality of injection pipes (7), the injection pipes (7) are to spray the water toward the top of both sides of each of the plurality of plate-shaped ice making unit (3) as a shower A plurality of injection holes are formed, and the injection pipes 7 are connected to the lower side of the ice storage tank 1 by a pumping pipe 71, and the circulation pump 72 installed in the pumping pipe 71. It is configured to inject the coolant stored in the coolant storage chamber 11 by the operation of.

The inner bottom of the ice storage tank (1) is provided with a plurality of rows of width pipes (8), the width of the heat pipes (8) are ice storage heat by the operation of the air blower 82 installed in the air transfer pipe (81) A plurality of through-holes are formed for injecting cold air sucked into the air transfer pipe 81 from the upper part of the tank 1 upward toward the cooling water stored in the cooling water storage chamber 11, and the cold air discharged from the width pipe 8 is formed. Cooling water aerated by the air promotes the release of the pieces of ice so that the cooling water is cooler by the thawed ice water, that is, the temperature close to 0 ℃.

On the other hand, the lower portion of the ice storage tank (1) is provided with a discharge pipe 13 is provided with a water supply pump 12, the cooling water discharged to the discharge pipe 13 is sent to a cooling device for rapid cooling or slow cooling of food A predetermined cooling operation is performed.

In addition, a replenishment water supply pipe 9 for spraying and supplying replenishment water is installed at an upper portion of the cooling water storage chamber 11 of the ice storage tank 1, and the replenishment water supply pipe 9 is installed separately from the ice storage tank 1. Is connected to the water tank 91 is configured to receive the replenishment water.

In addition, the supplemental water supply pipe (9) is provided with a supplemental water opening and closing valve 92 that is controlled to open and close operation by a control device (not shown), the supplementary water opening and closing valve is an intermediate water level level installed in the cooling water storage chamber (11) It is electrically connected to each of the sensor 63 and the low water level sensor 62, and is configured to spray supply the supplemental water to the cooling water storage chamber 11. That is, when the level of the coolant stored in the coolant storage chamber 11 of the ice storage tank 1 is lower than the middle level level sensor 63 and the ice pieces are stacked on the middle level level sensor 63, The supplementary water opening and closing valve 92 is opened for a predetermined time by the intermediate water level sensor 63, and the supplementary water is configured to be supplied to the cooling water storage chamber 11 through the supplemental water supply pipe 9, and also to provide a low water level sensor ( 62) Also, if the coolant level is low and the ice chips are piled high based on the low water level sensor, it is configured to open the refill water open / close valve 92 to supply replenishment water.

The operation of the present invention configured as described above will be described.

When the main switch of the control device (not shown) is turned on at night when the late night electric charge is applied, the circulation pump 72 of the pumping pipe 71 connected to the coolant storage chamber 11 of the ice storage tank 1 is driven to operate the coolant storage chamber. The cooling water stored in (11) is suction pumped and supplied to the plurality of injection pipes 7 installed in the upper portion of the ice storage tank 1, and at the same time, the refrigerator unit 2 is also driven, so that the refrigerant gas is supplied to the gas supply line. The plurality of plate-shaped ice making units 3 are circulated while being supplied to each gas circulation tube 31 to exchange heat, and then the operation to be recovered to the freezer unit 2 through the gas recovery line 22 is repeated.

As described above, each plate-shaped ice-making unit 3 itself freezes water rapidly by the heat exchange action of the refrigerant gas supplied from the refrigerator unit 2 to the plate-shaped ice-making unit 3 through the gas supply line 21. In the process of flowing down from the state in which the coolant injected from each injection pipe (7) is in contact with the upper side of each of the plate-shaped ice making unit (3), the part is frozen, and the uncooled coolant is stored in the coolant storage chamber (11). ) To fall.

By the frosting operation of the plate-shaped ice making unit 3 and the cooling water spraying operation of the spray pipe 7 as described above, ice 30 is set to a thickness (approximately 3 to 10 cm) on both sides of each plate-shaped ice-making unit 3. When the time reaches this time (this time means the time determined by the experiment), the circulation pump 72 is stopped by the control operation of the control device, and at the same time, the solenoid valve installed in the gas supply line 21 24 operates to cut off the gas supply line 21 side and open the hot gas line 23, and the hot gas recovered through the gas recovery line 22 after circulating the plate-shaped ice making unit 3 is a freezer unit. (2) Since the hot gas supplied to the hot gas line 23 is supplied to the hot gas line 23 by a bypass line (not shown) without passing through an internal refrigeration cycle, each plate-shaped ice making unit ( Supply circulation to the gas circulation pipe 31 of 3) The operation is repeatedly performed, and thus hot gas repeatedly circulating through each of the plate-shaped ice making units 3 heats the plate-shaped ice making unit 3 itself in a short time, and thus both sides of each of the plate-shaped ice making units 3 are heated. The ice 30 that has been frozen and adhered to is melted, so that the plate-shaped ice 30 that has been frozen on both sides of each of the plurality of plate ice making units 3 falls down while falling.

As described above, when an operation of melting and dropping the ice 30 frozen in the plurality of plate ice making units 3 and dropping is started, the control device drives the motor 5 to thaw each of the plate ice making units 3. The falling ice 30 falls to the pair of icebreaking rollers 4a and 4b or to the pair of icebreaking rollers 4a and 4b according to the guide of the inclined plate 12, the pair of icebreaking rollers. (4a) (4b) The plate-shaped ice 30 is dropped into the coolant storage chamber 11 while being crushed to a small size by the grinding blades 41 and 42 protruding in the saw blade shape on the outer peripheral surface of each of (4a) and (4b).

As described above, the operation of freezing the ice in the plurality of plate ice making units (3) and the operation of dropping the frozen ice are repeatedly performed during the late night time, even before the late night time in the coolant storage chamber (11). When the level of the stored coolant and the ice piece reaches the highest level, it is detected by the high level level sensor 61. Accordingly, the control unit works to freeze the frozen unit 2 and freezes the ice. It will stop working.

By repeating the operation of freezing and crushing the ice in the ice storage tank (1) during the late night time as described above, the cooling water storage chamber 11 is stored together with the cooling water and ice cubes at all times regardless of the night time Cooling water can be discharged from 1), and as the cooling water is used, the cooling water storage chamber 11 has more pieces of ice than the cooling water. Thus, when the cooling water is discharged from the cooling water storage chamber 11, an air blower ( 82) is activated to aeration cold air inside the ice storage tank (1) through a number of width pipe (8) to increase the contact action between the coolant and the ice cubes to promote the thawing of the ice cubes to increase the amount of cooling water The cooling water melted from the ice pieces by the aeration operation of the aeration pipe 8 has a temperature close to 0 ° C., which is the temperature at which the ice freezes. Cooling water is pumped by the water supply pump 12 is able to be expected to be supplied to a temperature close to 0 ℃.

Also, as the coolant stored in the coolant storage chamber 11 is discharged, the water level is gradually lowered. As a result, when the level of the coolant is lowered below the mid-level level sensor 63, the intermediate level sensor detecting the signal is signaled to the controller. The controller receives the signal to open the refill water open / close valve 92 so that the refill water stored in the refill water tank 91 is injected into the coolant storage chamber 11 through the refill water supply pipe 9. At this time, the replenishment water sprayed from the replenishment water supply pipe 9 is in contact with the ice pieces stored in the cooling water storage chamber 11 so that the ice pieces melt quickly, and at the same time, the air blower 82 also operates. By aeration cold air through the aeration pipe (8) to promote the thawing action of the ice cubes. Therefore, the replenishment water supplied from the replenishment water supply pipe 9 is replenished into the cooling water storage chamber 11 and then cooled to a temperature close to 0 ° C. within a short time by contact with a piece of ice and aeration.

On the other hand, when the coolant stored in the coolant storage chamber 11 is lower than the low water level level sensor 62, the signal is sent to the control device to inform the user of the lack of coolant, while replenishing through the replenishment water supply pipe (9) It will be able to supply the water at the proper level, so it can be prepared for ice production using nighttime electricity at night.

In the above described as an embodiment that the ice storage heat-cooling device of the present invention is automatically operated according to the program input to the control device, in some cases, the operator can be operated by manually switching the control device. Therefore, when the amount of cooling water is used during the day, when the ice produced by using a late night electricity is insufficient, it can be operated manually to produce ice.

According to the present invention as described above, in the ice heat storage cooling device using ice late night electricity, which uses low-cost electricity at low cost, and then uses it as cooling water, the ice is frozen to an appropriate thickness on both sides of the plate-shaped ice making unit. The crushing operation of crushing the crushed ice into small pieces can be repeated several times during the night time to produce a large amount of ice, and also crushed into small chunks so that the ice produced in the plate ice making unit melts well. By storing with the cooling water, the cooling water output is increased and the cooling water close to 0 ℃ can be obtained.The cooling water close to 0 ℃ is also promoted by promoting the thawing of ice chunks by aeration of the cooling water stored with the ice chunk. To increase the production of A useful devised.

Claims (2)

In the ice storage cooling device for supplying cooling water by freezing water using a refrigerant gas circulating the freezer unit and then melting ice, A plurality of plate-shaped ice making units fixedly installed on the inner side of the ice storage tank equipped with a cooling water discharge pipe and connected to the gas supply line and the gas recovery line of the refrigerator unit to freeze water supplied by the refrigerant gas circulating inside. Wow; A plurality of injection pipes installed in a circulation pump and connected to a pumping pipe for pumping cooling water from the bottom side of the ice storage tank to spray water to both sides of each of the plate-shaped ice making units; A pair of icebreaking rollers installed horizontally parallel to directly below the plate-shaped ice making unit, and rotating in a reverse direction with a plurality of grinding blades attached to an outer circumferential surface thereof to crush the plate-shaped ice that is frozen after being frozen in the plate-shaped ice making unit. Wow; A national rod for fixed level installed vertically on one side of the ice storage tank and having a high and low water level sensor and a medium water level sensor for detecting a storage amount of cooling water; A plurality of aeration pipes installed at the bottom of the ice storage tank connected to an air transfer pipe having an air blower installed therein to aeration the cooling water in the tank; Ice storage heat cooling device using a late-night electricity, characterized in that made. The method of claim 1, On the gas supply line of the refrigerator unit, a solenoid valve is installed, and a hot gas line installed separately from the refrigerator unit is connected to the solenoid valve. After ice freezing is completed on both sides of the plate-shaped ice making unit, the freezer unit is installed through a gas recovery line. The ice storage heat-cooling device using a late-night electricity characterized in that the hot gas recovered by the circulated supply ice to the plate ice unit, the plate ice unit is heated so that the frozen ice falls by melting.