JP2806155B2 - Ice making equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice making device used for an air conditioner, etc.
The present invention relates to measures for improving F and improving heat storage recovery efficiency when utilizing heat storage.

[0002]

2. Description of the Related Art This type of ice making apparatus is disclosed in Japanese Patent Application Laid-Open No. 4-386.
As disclosed in Japanese Patent Application Publication No. 7-107, an ice storage tank (21), a water heat exchanger as a supercooling generation cooler, and a supercooling elimination section are sequentially connected by a circulation path to form a cold storage material as water or aqueous solution Is formed in a closed circuit that can be circulated, supercooling the regenerator material with a water heat exchanger, eliminating the supercooled state of the regenerator material in the supercooling elimination section in the circulation path to generate slurry-like iced matter, The regenerative material containing the slurry-like ice is distributed to the ice storage tank and stored in the ice storage tank.

[0003] In the circulation path, an inlet to the ice storage tank is opened in the cold storage material to allow the cold storage material containing icing to flow into the cold storage material, and the cold storage material is supplied from the upper space of the ice storage tank. The upper space can be made smaller than in the case of flowing down, and a large IPF (ratio of ice volume to the total volume of the cold storage material during ice making) can be obtained even with a small capacity ice storage tank.

[0004]

However, in the above ice making device, since the inflow port is opened in the cold storage material of the ice storage tank, the inflow port may be clogged with icing matter unless any measures are taken. is there. In other words, when the IPF that forms an accumulation layer in the liquid is large, the inflow port is likely to be clogged with the ice. However, even when the IPF is small, the slurry-like ice floats in the liquid cold storage material. It is easy to clog because it is easy to enter the inflow port.

[0005] The present invention has been made in view of the above, and has as its object to prevent clogging of an inflow pipe that opens into a cold storage material in an ice storage tank.

[0006]

Means for solving the problems In order to achieve the above object, the means according to the first aspect of the present invention is a cold storage material (W).
An inflow pipe that opens to the inside and generates a jet that forms a storage space for a liquid cold storage material (W) is provided.

More specifically, as shown in FIG. 1, the means adopted by the invention according to claim 1 is an ice storage tank (21) for storing a cold storage material (W) which has been turned into a slurry. If, cooling means for the regenerator material (W) is subcooled (25), accumulating ice
The cooling means (25) is provided between the tank (21) and the cooling means (25).
A supercooling elimination unit (2) for eliminating the supercooled state of the cold storage material (W)
7) is connected to the cold storage material (W) in a circulating manner to form an ice making circuit (Y). It is assumed that an ice making device is stored in the tank (21).

As shown in FIG. 6, the ice storage tank (21) is formed with an inlet (85) through which the cold storage material (W) flows from the ice making circuit (Y), and the ice making tank (21). Outlet (87) for letting out cold storage material (W) into circuit (Y)
Is formed.

[0009] The aforementioned蓄氷tank (21), whereas that will be connected to the inlet (85), the inner bottom portion of the accumulating ice bath (21)
An opening that opens into the cold storage material (W) from near to upward
Part (93), cold storage material (W) iced into slurry
Is discharged from the opening (93) to generate a jet forming a storage space (S) for the liquid cold storage material (W).
1) is provided.

[0010]

According to the first aspect of the present invention,
Subcooled regenerator material in the cooling means (25) (W) is supercooled
The refrigerating material (W) in which the supercooled state is eliminated in the rejection canceling section (27) and iced and iced material is mixed is introduced into the inflow pipe (91) .
The ice flows into the ice storage tank (21) through the opening (93) , and iced matter is stored in the ice storage tank (21).

The inflow pipe (91) generates a jet forming a storage space (liquid space) (S) for the liquid regenerator material (W), so that even if icing matter is present in the inflow area of the jet, the jet is generated. As a result, it is pushed out of the inflow basin, so that the hydrate does not enter the inflow pipe (91) and is clogged.

[0012]

As described above, according to the first aspect of the present invention, since the inflow pipe (91) generates a jet forming the liquid space (S), clogging of the inflow pipe (91) is prevented. Even if the inflow pipe (91) is open in the cold storage material (W), it is possible to always ensure the flow of the iced substance into the ice storage tank (21). Therefore, even when the upper space is made as small as possible with respect to the storage capacity of the predetermined volume to reduce the capacity of the ice storage tank (21), the IP due to the clogging of the inflow pipe (91) can be reduced.
F can be prevented from lowering.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 6 show a first embodiment of the present invention. FIG. 1 shows an overall configuration of an air conditioner (N) including an ice making device (M) according to the present embodiment, and a plurality of indoor units (A), (A), and an outdoor unit (X).
... are connected so-called multi-type air conditioners.

In the outdoor unit (X),
(1) is a first compressor, (11) is a second compressor (11),
(2) is a four-way switching valve that switches in two directions, a solid line and a broken line in the figure, and (3) is an outdoor heat source side air heat exchanger that functions as a condenser during cooling operation and as an evaporator during heating operation. The heat exchanger (4) is an outdoor electric expansion valve that functions as a refrigerant flow control valve during normal cooling operation, and functions as a high heat source side pressure reducing mechanism that depressurizes the refrigerant during heating operation and heat storage cooling operation.

On the other hand, each indoor unit (A), (A),...
Are electrically connected in parallel, and (6) is an indoor electric expansion valve that functions as a use side pressure reducing mechanism during cooling operation and functions as a refrigerant flow control valve during heating operation.
(7) is an indoor heat exchanger as a use side heat exchanger that functions as an evaporator during a cooling operation and as a condenser during a heating operation.

A high heat source side circuit in which the first compressor (1), the four-way switching valve (2), the outdoor heat exchanger (3), and the outdoor electric expansion valve (4) are sequentially connected. (B) and (A) and (A) of each indoor unit from the outdoor electric expansion valve (4) side.
The indoor electric expansion valves (6), (6),... Of (A), and the indoor heat exchangers (7), (7),. The outdoor electric expansion valve (4) side of the high heat source side circuit (B) and the indoor electric expansion valves (6), (6),... Side of the utilization side circuit (C) are connected at the connection part (g). , The indoor heat exchanger (7) of the use side circuit (C),
The (7),... Sides are connected to the four-way switching valve (2), and the main refrigerant circuit (E) has a heat pump function of releasing the heat obtained by reversible circulation of the refrigerant and heat exchange with the outdoor air to the indoor air. ) Is formed.

A low heat source side circuit (H) is connected to the main refrigerant circuit (E) in parallel with the high heat source side circuit (B), that is, the low heat source side circuit (H) has one end. The other end is connected to the suction portion of the first compressor (1) and to the connection portion (g). The low heat source side circuit (H) includes a second compressor (11) from the first compressor (1) side and a low heat source side heat exchanger (13).
And a low heat source side electric expansion valve (14) for adjusting the flow rate during the heat storage cooling operation. First compressor (1)
A check valve (17) between the discharge side of the first compressor and the discharge side of the second compressor (11) for preventing refrigerant from flowing from the first compressor (1) to the second compressor (11); , And a peak cut solenoid valve (19) are connected in parallel. The air conditioner (N) includes an ice making device (M) for performing a heat storage operation for storing cold heat by exchanging heat with a refrigerant and a heat storage cooling operation for performing cooling using the heat storage. Have been.

The ice making device (M) stores an ice storage material (W) which has been iced into a slurry and stores cold heat.
1), a pump (23), and a heat source side heat exchanger (13)
A supercooling-generating heat exchanger (25) as a cooling means according to the invention according to the first aspect, wherein the cold storage material (W) is supercooled by heat exchange with a refrigerant; Supercooling elimination unit (27) for eliminating the supercooled state of material (W)
Are sequentially connected by a circulation path (29) so that the cold storage material (W) can be circulated to form a closed circuit ice making circuit (Y). Water or an aqueous solution is used as the cold storage material (W).

The low heat source side heat exchanger (13) functions as a condenser for preheating the cold storage material (W) during the heat storage operation.
At the time of heat storage cooling operation, it is configured to function as a condenser for recovering cold heat by heat exchange between the refrigerant and the cold storage material (W).

A supercooling generation circuit (F) is connected to the main refrigerant circuit (E) for the purpose of supplying cold heat to the supercooling generation heat exchanger (25) of the ice making circuit (Y). .
The subcooling generation circuit (F) has an inflow end (33a) connected to the connection part (g) of the main refrigerant circuit (E), and branches via a common conduit (35) with the low heat source side circuit (H). The branch (37) branches off from the low heat source side circuit (H), and the outflow end (33b) is connected to the suction side of both compressors (1) and (11), and is connected to the supercooling generation circuit (F). From the part (g) side, a water-side electric expansion valve (39) functioning as a pressure reducing mechanism during the heat storage operation and a supercooling-generation heat exchanger (25) are sequentially provided.

The supercooling heat exchanger (25) is of a liquid-filled type, and the cooling capacity is controlled by adjusting the liquid level of the liquid refrigerant.

The low heat source side heat exchanger (13) and the supercooling heat exchanger (25) constitute a heat exchange section (81), and the heat exchange section (81) is a refrigeration circuit. A supercooling-generating heat exchanger (25), which is connected to the main refrigerant circuit (E) and supercools the cold storage material (W) by heat exchange with the refrigerant during the heat storage operation; It is configured to be switchable to a low-heat-source-side heat exchanger (13) as a condenser that recovers cold energy of the cold storage material (W) by heat exchange.

Further, in the freezing progress preventing section (31), the frost generated by the elimination of the supercooled state in the subcooling elimination section (27) adheres to the pipe wall of the circulation path (29) and freezes. In such a case, the freezing of the supercooled heat exchanger (25) is prevented from progressing.

For the purpose of supplying warming heat to the freezing prevention unit (31), the inflow end (4) is connected to the discharge side of the second compressor (11).
1a) is a water-side electric expansion valve (3) of the supercool generation circuit (F).
9) The outflow ends (41b) are respectively connected to the upstream side to form a first bypass passage (41), and the first bypass passage (41) is provided with a freezing / extension preventing portion (31) from the inflow end (41a) side. ) And an electric expansion valve (43) for cooling the refrigerant.

Further, for the purpose of supplying cold heat to the subcooling elimination section (27), the inflow end (45a) of the first bypass passage (41) is located downstream of the refrigerant cooling electric expansion valve (43).
Is the supercooling generation heat exchanger (2) of the supercooling generation circuit (F).
5) The outflow ends (45b) are connected to the downstream side, respectively, to form a second bypass passage (45), and a subcooling eliminating section (27) is interposed in the second bypass passage (45). .

In the high heat source circuit (B) downstream of the outdoor heat exchanger (3), the outdoor electric expansion valve (4) and the condensed refrigerant from the outdoor heat exchanger (3) are mixed with gas refrigerant and liquid. A gas-liquid separator (61) for separating into a refrigerant is sequentially provided. One end of a gas passage (65) is connected to a gas outlet (63) of the gas-liquid separator (61), and the other end of the gas passage (65) is connected to the second compressor (11) with a low heat source side heat exchanger. The low heat source side circuit (H) is connected to the heat source (13). A check valve (73) for preventing the inflow of high-pressure gas from the second compressor (11) is provided in the gas passage (65).

Further, a point of confluence (g) with the gas-liquid separator (61)
And a capillary tube (7) for allowing the gas passage (65) to release gas during the heat storage cooling operation.
1) is provided. In addition, a check valve (74) is interposed between the high heat source side circuit (H) downstream of the gas-liquid separator (61) and the utilization side circuit (C) near the connection part (g). The check valve (74) bypasses the capillary tube (71) during the heating operation and transfers the refrigerant to the gas-liquid distributor (6).
It is designed to be distributed in 1).

Then, in accordance with the various operation modes, the valves are switched or the opening degree is adjusted to switch the refrigerant circulation path. Next, a circuit configuration and a refrigerant circulation operation in each operation mode of the air conditioner (N) will be described. As shown in FIG. 1, during the normal cooling operation, the four-way switching valve (2) is switched to the solid line side, and the low heat source side electric expansion valve (14), the water side electric expansion valve (39), and the refrigerant cooling electric expansion valve. While the expansion valve (43) and the peak cut solenoid valve (19) are controlled to be closed, the outdoor electric expansion valve (4) and the indoor electric expansion valves (6), (6),. Then, an operation control state is set in which the refrigerant flows only through the main refrigerant circuit (E). The refrigerant discharged from the first compressor (1) and the second compressor (11) is condensed in the outdoor heat exchanger (3),
After being decompressed by the indoor electric expansion valves (6), (6), ..., they are evaporated by the indoor heat exchangers (7), (7), ... and return to the compressors (1), (11).

At the time of heating operation, the four-way switching valve (2) is switched to the broken line side, and the low heat source electric expansion valve (14), the water side electric expansion valve (39), and the refrigerant cooling electric expansion valve (43) are provided. ,
While closing the peak cut solenoid valve (19), the outdoor electric expansion valve (4), the indoor electric expansion valve (6),
(6), ... are controlled to be in an operation control state in which the refrigerant flows only through the main refrigerant circuit (E). Both compressors (1), (1
The refrigerant discharged in 1) is condensed in the indoor heat exchangers (7), (7),..., Decompressed by the outdoor electric expansion valve (4), and then evaporated in the outdoor heat exchanger (3) to compress both refrigerants. Return to machines (1) and (11).

In the heat storage operation, the four-way switching valve (2) is switched to the solid line side, and the outdoor electric expansion valve (4), the low heat source side electric expansion valve (14), the water side electric expansion valve (39), While the refrigerant cooling electric expansion valve (43) is controlled to be open, the indoor electric expansion valves (6), (6),... And the peak cut solenoid valve (19) are controlled to be closed, so that the high heat source side circuit is controlled. (B), the low heat source side circuit (H), the subcooling generation circuit (F), the first bypass path (41), and the second bypass path (45) while the refrigerant is in a state where it can be circulated. Then, the operation control state is set in which the circulation of the refrigerant to the use side circuit (C) is interrupted. Refrigerant discharged from the first compressor (1) is condensed in the outdoor heat exchanger (3), flows into the supercooling generation circuit (F), is depressurized by the water-side electric expansion valve (39), and is then cooled by the supercooling heat. It evaporates in the exchanger (25), flows again into the high heat source side circuit (B), and returns to the first compressor (1).

On the other hand, the refrigerant discharged from the second compressor (11)
It branches to a first bypass path (41) and a low heat source side circuit (H). The refrigerant flowing into the first bypass passage (41) is condensed in the freeze-prevention preventing section (31), and the refrigerant-cooled electric expansion valve (4) is condensed.
After the pressure is reduced in 3) and the refrigerant temperature is cooled to a temperature lower than 0 ° C., a part thereof branches to the second bypass passage (45) and evaporates in the subcooling elimination section (27) to evaporate. ), And returns to the second compressor (11). The remainder of the refrigerant flows through the first bypass path (41) as it is, joins the supercool generation circuit (F), and returns to the second compressor (11) via the supercool elimination section (27).

The refrigerant flowing to the low heat source side circuit (H) is condensed in the low heat source side heat exchanger (13), and is condensed in the branch (3).
At 7), the refrigerant merges with the liquid refrigerant from the high heat source side circuit (B), flows into the supercool generation circuit (F), and returns to the second compressor (11) via the supercool elimination section (27).

In the refrigerant flowing state, the refrigerant preheats the cold storage material (W) in the low heat source side heat exchanger (13), and when the ice material is mixed in the cold storage material (W), the cold storage material The supercooled material (W) flowing through the circulation path (29) is supercooled by the supercooling generation heat exchanger (25),
In 1), the pipe wall of the circulation path (29) is heated to prevent the progress of freezing, and the supercooling elimination section (27) eliminates the supercooled state of the cold storage material (W) to start icing. Produces slurry ice. The iced material is stored in an ice storage tank (21) to store cold heat.

During the heat storage cooling operation, the four-way switching valve (2) is switched to the solid line side, and the water side electric expansion valve (39), the refrigerant cooling electric expansion valve (43), and the peak cut solenoid valve (19) are used. ) And the outdoor electric expansion valve (4)
, The indoor electric expansion valves (6), (6),... And the low heat source side electric expansion valve (14) are opened to control the high heat source side circuit (B).
And the low heat source side circuit (H) is brought into the operation control state in which the refrigerant diverted to the utilization side circuit (C) flows together. Refrigerant discharged from the first compressor (1) in the high heat source side circuit (B) is condensed in the outdoor heat exchanger (3), and the liquid pressure of the low heat source side circuit (H) is passed through the outdoor electric expansion valve (4). While the pressure is reduced to
Refrigerant discharged from the second compressor (11) in the low heat source side circuit (H) is condensed in the low heat source side heat exchanger (13), and both condensed refrigerants are connected in the connection part (g) of the main refrigerant circuit (E). Merge and flow to the use side circuit (C), and the indoor electric expansion valves (6), (6),
, And evaporates in the indoor heat exchangers (7), (7),..., Flows into the high heat source side circuit (B),
Return to (11).

When the capillary tube (71) reduces the pressure of the liquid pipe of the high heat source side circuit (B), the flash gas of the high heat source side circuit (B) is vented through the gas passage (65). The condensing temperature of the low heat source side heat exchanger (13) is maintained at a low temperature set value. In addition, since the gas is vented to the discharge side of the second compressor (11), the cooling operation is performed without reducing the refrigerant circulation amount.

Further, as one mode of the heat storage cooling operation, during the daytime when the electric power consumption reaches a peak, a heat storage only cooling operation using only heat storage is performed. That is, during the thermal storage cooling operation, the outdoor electric expansion valve (4) is controlled to close to shut off the high heat source side circuit (B), while the peak cut solenoid valve (19) is controlled to open to control the first compressor. An operation control state in which the refrigerant from (1) is circulated to the low heat source side circuit (H). Since the refrigerant discharged from both compressors (1) and (11) is condensed only in the low heat source side heat exchanger (13), the capacity of the compressor during the day can be reduced, and the power consumption is reduced. And stable cooling operation becomes possible.

Next, as a feature of the invention according to claim 1,
As shown in FIGS. 2 and 3, the ice storage tank (21) is formed in a container having a square shape in plan view, and an inlet (85) is formed on a side wall and an outlet (87) is formed on a bottom wall.

The circulation port (2) is connected to the inflow port (85).
An inflow pipe (91) connected to 9) is connected, and the inflow pipe (91) extends to the center of the square in the center of the ice storage tank (21), and as shown in FIG. Are formed in an opening (93) which is curved and opened upward. The opening portion (93) is configured to generate a jet forming a storage space (liquid space) (S) for the liquid cold storage material (W).

Next, the operation of the inflow pipe (91) will be described. At the time of heat storage operation, supercool generation heat exchanger (25)
The regenerator material (W) supercooled by the supercooling-generating heat exchanger (25) with the refrigerant circulating through the supercooling generation heat exchanger (25) is freed from the supercooled state and becomes iced. (W)
Flows through the circulation path (29), flows into the ice storage tank (21) from the inflow pipe (91), and iced matter is stored in the ice storage tank (21).

Since the inflow pipe (91) generates a jet forming the liquid space (S) as shown in FIG. 5, even if iced matter accumulates in the inflow area of the jet, it flows out of the inflow area by the jet. It is displaced and iced material does not enter the inflow pipe (91) and clog it.

During the heat storage cooling operation, the refrigerant flows through the low heat source side heat exchanger (13) and functions as a condenser, and the temperature rises due to heat exchange with the refrigerant in the low heat source side heat exchanger (13). The cold storage material (W) flows into the ice storage tank (21). On the other hand, as shown in FIG. 6, since the jet from the inflow pipe (91) forms the liquid space (S), the inflow of the cold storage material is ensured even at the start of operation with a large IPF. In addition, since the warm jet jets onto the accumulation layer of the iced substance in the liquid, melting of the iced substance is promoted by the force of the jet, and efficient heat storage and recovery is performed.

According to the present embodiment, since the inflow pipe (91) generates a jet forming the liquid space (S), the inflow pipe (9) is formed.
1) can be prevented, and even if the inflow pipe (91) is opened in the cold storage material (W), it is possible to always ensure the flow of iced material into the ice storage tank (21). Therefore,
Even when the upper space is made as small as possible with respect to the storage capacity of the predetermined volume to reduce the capacity of the ice storage tank (21), it is possible to prevent a decrease in IPF due to clogging of the inflow pipe (91).

Also, when the ice making circuit (Y) can store and recover heat by the heat exchanging section (81), the inflow pipe (9)
Since the jet from 1) moves the iced substance out of the inflow area and forms a liquid space (S) while melting the iced substance,
Efficient heat storage recovery can be performed.

Since the opening (93) of the inflow pipe (91) is arranged at the center of the square of the ice storage tank (21), as shown in FIG. A space (S) can be formed, which allows smooth movement of the iced material to the outside of the inflow area, promotes melting of the iced material by the jet, and allows the inflow of the cold storage material into a single opening (93). ) Can easily secure the hydraulic pressure for obtaining the jet.

The opening (93) of the inflow pipe (91) is formed so as to open upward, so that the ice storage tank (2) is formed.
The jet can be directly applied to the iced accumulation layer formed from the upper part of 1), and the movement of the iced out of the inflow area and the melting of the iced can be effectively performed.

Next, FIG. 7 shows a second embodiment of the present invention.
In this embodiment, the inflow pipe (91) is formed as a throttle (97) whose opening (93) increases the jet velocity of the cold storage material (W).

Therefore, the liquid space (S) is reliably formed, and the inflow pipe (9) is operated during the heat storage operation and the heat storage cooling operation.
The prevention of clogging of 1) and the promotion of melting of iced products during the heat storage cooling operation can be performed more effectively.

Next, FIGS. 8 and 9 show a third embodiment of the present invention. In this embodiment, the ice storage tank (21) is formed in a rectangular container in plan view in which two square sections having the same area as the square of the first embodiment are assembled, and the opening (93) of the inflow pipe (91) is formed. ) Are formed.

Specifically, an inflow pipe (91) extends from the side wall on the short side of the ice storage tank (21) into the ice storage tank (21),
An opening (93) of the inflow pipe (91) is formed at the center of each square.

Therefore, for a container having a rectangular shape in a plan view, it is possible to smoothly move the iced substance out of the inflow area and to promote the melting of the iced substance by the jet flow with the minimum number of openings (93). At the same time, the inflow of cold storage material is
The liquid pressure for obtaining the jet can be easily ensured by the method 3).

Next, FIG. 10 shows a modification of the third embodiment. In this modification, two outflow pipes are arranged in an ice storage tank (21), and an ice storage tank (21) having a rectangular shape in plan view is divided into six square sections having the same area as the square of the first embodiment. Assuming a set, each inflow pipe (91) is configured to have an opening (93) formed at the center of each of three squares.

According to this modification, the same operation and effect as those of the second embodiment can be exhibited.

The heat exchange part (81) of the first embodiment is
One heat exchanger is connected to a refrigeration circuit, and an evaporator for supercooling the cold storage material (W) by heat exchange with the refrigerant during the heat storage operation, and a cold storage material (W) by heat exchange with the refrigerant during the heat storage cooling operation. ) May be configured to be switchable to a condenser for recovering cold heat.

The shape of the ice storage tank (21) may be other than the above-mentioned shape, for example, a circular shape in plan view.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of a piping system of an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a plan view of the ice storage tank according to the first embodiment of the present invention.

FIG. 3 is a sectional view of the ice storage tank according to the first embodiment of the present invention.

FIG. 4 is an enlarged sectional view of an opening of the inflow pipe according to the first embodiment of the present invention.

FIG. 5 is a cross-sectional view of the ice storage tank showing the formation of a liquid space during the heat storage operation in the final stage of heat storage in the first embodiment of the present invention.

FIG. 6 is a cross-sectional view of the ice storage tank showing the formation of the liquid space at the beginning of the thermal storage cooling operation in the first embodiment of the present invention.

FIG. 7 is an enlarged sectional view of a throttle portion of an inflow pipe according to a second embodiment of the present invention.

FIG. 8 is a plan view of an ice storage tank according to a third embodiment of the present invention.

FIG. 9 is a sectional view of an ice storage tank according to a third embodiment of the present invention.

FIG. 10 is a plan view of an ice storage tank according to a modification of the third embodiment of the present invention.

[Explanation of symbols]

 13 Low heat source side heat exchanger (Heat exchange part) 21 Ice storage tank 25 Supercool generation heat exchanger (Cooling means, Heat exchange part) 81 Heat exchange part 85 Inlet 87 Outlet 91 Inlet pipe 93 Opening 97 Narrowing part S Storage space for liquid cold storage material (liquid space) Y Ice making circuit W Cold storage material

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-98095 (JP, A) JP-A-4-3867 (JP, A) JP-A-61-295442 (JP, A) (58) Field (Int. Cl. ⁶ , DB name) F24F 5/00 102

Claims (1)

(57) [Claims] 1. A蓄氷tank for reserving slurry to be Korika the cold accumulating material of (W) and (21), and cooling means for the regenerator material (W) is supercooled (25), accumulating With ice tank (21)
The cold storage material (W) provided between the cooling means (25);
The supercooling elimination section (27) for eliminating the supercooling state of the cooling medium (W) is connected to the cooling medium (W) in a circulating manner to form an ice making circuit (Y). An ice making device for storing iced matter generated by eliminating the above in the ice storage tank (21), wherein the ice storage tank (21) has an inlet through which a cold storage material (W) flows from the ice making circuit (Y). (85) is formed, and an outlet (87) through which the cold storage material (W) flows out of the ice making circuit (Y) is formed. On the other hand, in the ice storage tank (21), the inlet ( while that will be connected to 85), upwardly from the vicinity of the inner bottom portion of the accumulating ice bath (21)
It has an opening (93) that opens into the cold storage material (W).
Then, the cold storage material (W) iced into a slurry is added to the opening (9).
3) Storage space (S) for liquid cool storage material (W) released from
An ice making device characterized by being provided with an inflow pipe (91) for generating a jet forming a jet.