JP3267411B2 - Evaporative ice slurry generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an evaporative ice slurry forming apparatus.
More specifically, the cooling water is supplied to the evaporating chamber, and the indoor air pressure of the evaporating chamber is reduced, and the refrigerant water is discharged from the evaporating chamber to cause freezing of the indoor refrigerant water. Exhaust means for generating a slurry in which ice particles are distributed in the evaporation chamber;
The present invention relates to an evaporative ice slurry generating apparatus provided with a slurry outlet for flowing out from the bottom of the evaporating chamber and feeding it to a cold heat consuming system.

[0002]

Te BACKGROUND ART Such evaporative ice slurry generator odor <br/>, conventionally, as refrigerant water is stored in the evaporation chamber, has been supplied to the coolant water to the vaporization chamber at the coolant water supplier . And, by exhausting means, by lowering the indoor pressure of the evaporation chamber and discharging the vapor of the refrigerant water from the evaporation chamber,
In the evaporating chamber, the evaporation from the indoor refrigerant water is continued, and the vaporization heat is taken away by the evaporation to cause freezing in the indoor refrigerant water, whereby a slurry in which ice particles are distributed in the stored refrigerant water stored in the evaporating chamber (hereinafter referred to as slurry) Ice), and the slurry ice was supplied as a cooling medium to the cold heat consuming system from the slurry outlet.

[0003]

However, in the above-mentioned conventional evaporative ice slurry generating apparatus , the refrigerant water is not renewed much on the surface of the stored refrigerant water in the evaporating chamber.
Further, since a portion that becomes a still water surface is generated, the stored refrigerant water freezes on the water surface, and the frozen region may gradually expand. In some cases, the refrigerant water freezes while adhering to the inner surface of the evaporating chamber, and the adhering ice gradually grows and grows larger while adhering to the inner surface of the evaporating chamber. Therefore, if the freezing area on the surface of the stored refrigerant water expands or the amount of ice attached to the inner surface of the evaporating chamber increases, the efficiency of production of the original target product, slurry ice, decreases, or the production becomes impossible. Problems arise.

The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the structure for supplying the coolant water to the evaporating chamber rationally so that the slurry ice can be efficiently and stably formed. In order to be able to generate it.

[0005]

A feature of the invention according to claim 1 is as follows.
The symbols are the evaporation chamber to which the coolant water is supplied and the interior of the evaporation chamber.
While reducing the air pressure, the refrigerant water vapor is
The discharge causes freezing in the indoor refrigerant water,
A slurry in which ice particles are distributed in a medium is produced in the evaporation chamber.
Exhaust means to be formed, and the resulting slurry to the bottom of the evaporation chamber.
Slurry outlet that flows out of the section and is sent to the cold heat consumption system
In evaporative ice slurry generator providing bets, the steam
Watering nozzle for promoting evaporation to spray refrigerant water into the departure room
And transmitting the coolant water to the inner surface of the evaporation chamber.
For flowing down to be supplied to the evaporation chamber so as to flow down.
A coolant water supply means is provided to supply the coolant water for flowing down.
The coolant water supplied by the means is sprayed by the spray nozzle.
Flow down the surface of the evaporation chamber around the
It is in the point that it is configured to reach the section .

The features of the invention according to claim 2 are as follows.
In the embodiment of the invention, the bottom of the evaporation chamber is formed in an inverted cone shape, and the slurry outlet is provided at the top of the inverted cone shape.

[0007] The features of the invention according to claim 3 are as follows.
In the practice of the invention, the evaporating chamber may be moved from the bottom of the evaporating chamber
Pumps the refrigerant water inside, and disperses the pumped refrigerant water
The point is that a circulation pump for supplying to the water nozzle is provided .

[0008]

According to the first aspect of the present invention, the cooling water for flowing down is provided.
The refrigerant water supplied by the medium water supply means is scattered in the evaporation chamber.
Do not travel along the evaporation chamber surface around the sprinkling area formed by the water nozzle.
It flows down to the bottom of the evaporation chamber. And like this
Refrigerant water formed by watering nozzle Evaporation chamber around watering area
In the process of flowing down the surface,
For effective cooling obtained by efficient evaporation of refrigerant water
Freezing occurs in the flowing refrigerant water on the surface of the evaporation chamber, causing slurry
Ice is generated and the slurry ice is cooled from the slurry outlet.
Sent to heat consuming system.

According to the second aspect of the present invention , the refrigerant water is
Smoothly flow down while down along the downward slope of the bottom portion formed in the reverse cone shape of the evaporation chamber, Ri reached a slurry outlet at the bottom of the downward slope, Accordingly, as the
Slurry ice generated in the process of flowing down the inner surface of the evaporation chamber is also smoothly drawn out from the slurry outlet and fed to the cold heat consuming system.

According to the third aspect of the present invention, the bottom of the evaporation chamber is provided.
Refrigerant water pumped from the section is sprayed from the spray nozzle to the interior of the evaporation chamber.
Refrigerant water circulation easily sprays water to the refrigerant water.
It is possible to effectively promote the flow of refrigerant water at the bottom of the evaporation chamber.
it can.

[0011]

According to the first aspect of the present invention, as described above.
The refrigerant water is transmitted to the inner surface of the evaporation chamber and flows to the bottom of the evaporation chamber.
Slurry ice is generated while lowering it.
In other words, the renewal of refrigerant water
Due to lack of stability
That the frozen area of the refrigerant water grows in the evaporation chamber
Or freezing while refrigerant water adheres to the inner surface of the evaporation chamber.
It can be effectively prevented from being lengthened.
Also, the coolant water is sprayed around the watering area formed by the watering nozzle.
The water to the inside of the evaporation chamber
Efficient evaporation of refrigerant water in the water area to effect the refrigerant water flowing down
Cooling to effectively generate slurry ice during the falling process
Can be promoted.
-Ice can be efficiently and stably generated.

According to the second aspect of the present invention, the generated switch
Slurry is smoothly derived from rally ice along with refrigerant water
It can be derived from the mouth, so that the refrigerant
Growth problems can be more effectively prevented.

According to the third aspect of the present invention, the bottom of the evaporation chamber is provided.
Can effectively promote the flow of refrigerant water in the evaporation chamber
More effectively prevent the problem of refrigerant water / ice formation in
Can be

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, reference numeral 1 denotes ice particles a in refrigerant water w.
The evaporative ice slurry generator for producing the slurry ice in which the ice is distributed, the slurry ice produced by the ice slurry generator 1 is supplied to the cold heat consuming system 3 as a cold heat supply medium, and the cold ice consuming system 3 This is a circulation facility for returning the returned refrigerant water w in which the ice component a has been melted due to the cold heat consumption to the ice slurry generating device 1 as ice making raw water again.

Reference numeral 3a denotes a component of the cold heat consuming system 3, which is a heat exchanging means for exchanging heat of a cooling object such as air with the slurry ice and cooling it, such as an air handling unit and a fan coil unit group.

Reference numeral 4 denotes an ice heat storage tank provided in the circulation equipment 2 in the middle of the circulation path.
And stores the slurry ice supplied through the primary side supply passage 2a to the heat exchange means 3a of the cold heat consuming system 3 via the secondary side supply passage 2b. The return refrigerant water w returned from the heat exchange means 3a via the secondary return path 2c is received and stored, and the stored refrigerant water w is returned to the ice slurry generating device 1 via the primary return path 2d.

P1 is a primary circulation pump, and P2 is a secondary circulation pump.

The ice slurry generating apparatus 1 comprises an evaporating chamber 5 for supplying refrigerant water w by a cooling water supply means S for flowing down , and a refrigerant vapor generated in the evaporating chamber 5 to an absorbing liquid m. An absorption chamber 6 that absorbs, a regeneration chamber 7 that evaporates and regenerates refrigerant water by heating the dilute absorption liquid m that has absorbed refrigerant vapor, and a condensing chamber 8 that condenses refrigerant vapor generated in the regeneration chamber 7 Have.

The absorption liquid m may be an aqueous solution of ethylene glycol, an aqueous solution of lithium bromide, an aqueous solution of propylene glycol, an aqueous solution of calcium chloride, a saline solution, or the like, at a temperature higher than the temperature at which crystallization or freezing occurs. Various liquids can be applied as long as they can lower the saturated water vapor pressure at the freezing point of the refrigerant water w in the evaporation chamber 5.

The evaporating chamber 5 contains the above-mentioned refrigerant water for flowing down.
A supply means S is provided, and a watering nozzle 10 for watering the coolant water w into the room is provided. In addition, the evaporating chamber 5 is connected to the primary-side feeding path 2a and the primary-side recirculating path 2d, and a condensed water path 9 for returning the condensed refrigerant water w from the condensing chamber 8.
Is connected. Watering of the coolant water w by the water spray nozzle 10 in the evaporation chamber 5 aims at promoting evaporation of the coolant water w in generating slurry ice in the evaporation chamber 5.

The vapor phase of the evaporating chamber 5 and the vapor phase of the absorbing chamber 6 are communicated via a vapor discharge path 12.
Is guided to the absorption chamber 6 through the vapor discharge path 12.

The absorption chamber 6 contains the concentrated absorption liquid m from the regeneration chamber 7.
Nozzle 14 for spraying water into the gas phase in the room, and heat exchanger 1 for cooling concentrated absorbent m sprayed from spray nozzle 14
6, the regeneration chamber 7 and the spray nozzle 14 are connected to a concentrated liquid path 13 for sending the concentrated absorbent m from the regeneration chamber 7 to the absorption chamber 6.
a, and the liquid reservoir at the lower part of the absorption chamber 6 and the regeneration chamber 7 are connected by a dilute liquid passage 13b for sending the dilute absorption liquid m having absorbed the refrigerant vapor to the regeneration chamber 7.

In the drawing, P4 is a solution pump for sending the dilute absorbing liquid m in the absorption chamber 6 to the regeneration chamber 7, and 17 is a liquid pump for flowing the concentrated absorbing liquid m and the dilute liquid path 13b flowing through the concentrated liquid path 13a. This is a solution heat exchanger that exchanges heat with the diluted absorbing liquid m to cool the concentrated absorbing liquid m and preheats the diluted absorbing liquid m.

The purpose of spraying the absorbing liquid by the spray nozzle 14 in the absorbing chamber 6 is to increase the surface area of the absorbing liquid (in other words, the contact area with the refrigerant vapor) to promote the absorption of the refrigerant vapor.

To the heat exchanger 16 for cooling the absorbing liquid m, cooling water, brine, or refrigerant gas in a refrigeration circuit is supplied as a cooling medium.
In general, the saturated vapor pressure on the absorbent can be made lower than the saturated vapor pressure at the freezing point of the refrigerant water w in the evaporation chamber 5 simply by keeping the temperature of the absorbent m at about room temperature (for example, 20 ° C.). Therefore, a very high temperature cooling medium can be used as the cooling medium to be cooled by the heat exchanger 16, and cooling using the atmosphere or general waste cold heat during the period except summer can be performed.

The regeneration chamber 7 is provided with a regeneration heat exchanger 18 for heating the absorbing liquid m stored in the chamber, and by this heating, the refrigerant water w in the diluted absorbing liquid m is evaporated to concentrate the absorbing liquid m.

The condensing chamber 8 is provided with a condensing heat exchanger 19 using cooling water as a cooling medium. The condensing heat exchanger 19 converts the refrigerant vapor introduced from the regeneration chamber 7 into the condensing chamber 8 through the vapor passage 15.
Condensate by cooling with.

Next, the evaporating chamber 5 will be described with reference to FIGS. The evaporation chamber 5 is formed by a container 51. The container 51 includes a cylindrical body 51A having a bottom and an edge portion 51a at an opening, the opening of which is directed downward, and a cylindrical body 5A provided at the opening of the cylindrical body 51A.
The upper end of a cylindrical body 51B smaller in diameter than 1A is fitted inside, and the lower end of the cylindrical body 51B has an inverted conical bottom 51.
C are formed continuously. Further, in fitting the upper end of the cylindrical body 51B into the opening of the cylindrical body 51A, the upper end of the cylindrical body 51B is protruded inward of the cylindrical body 51A to form a protruding portion 51b. And the cylindrical body 51A
, The edge 51a of the cylindrical body 51A, and the cylindrical body 51B.
The upwardly projecting portion 51b forms an upward annular groove 51D over the entire circumference of the container 51.

Then, the primary side recirculation path 2d and the condensed water path 9 are connected to the groove 51D. Further, a proportional valve V1 for adjusting the flow rate is interposed in the primary side return line 2d, and a sprinkling return line 2e is connected from the primary side return line 2d to the upstream side of the position where the proportional valve V1 is provided. It is branched, and the water return path 2 e is connected to the water spray nozzle 10.

The bottom 5 of the container 51 has an inverted conical shape.
A slurry outlet 5E for discharging slurry ice is provided at the top of 1C, and the primary feed path 2a is connected to the slurry outlet 5E.

The protrusion 51b of the groove 51D functions as an overflow weir, and the flow rate is adjusted by the proportional valve V1, so that the coolant water w overflows from the overflow weir 51b over the entire circumference of the overflow weir 51b, and the overflow occurs. Refrigerant water w into container 51
Is caused to flow down the inner surface of the container 51 over the entire inner surface to reach the slurry outlet 5E. That is, in this example, the refrigerant water w
The power supplied to the evaporation chamber 5 so as to flow down to the inner surface
The cooling water supply means S for flowing down is controlled by the overflow weir 51b.
The coolant water w (the overflow refrigerant water w)
(Refrigerant water) is vaporized around the watering area formed by the watering nozzle 10.
The evaporating chamber 5 is formed by flowing down the inner surface of the departure chamber (the inner surface of the container 51).
To the bottom.

In the ice slurry generating apparatus 1 having the above-described structure, the vapor from the evaporation chamber 5 is caused by absorbing the refrigerant vapor into the absorption liquid m in the absorption chamber 6 connected to the evaporation chamber 5 through the vapor discharge path 12. Due to the discharge and the decrease in the pressure of the evaporating chamber 5, the vapor pressure of the evaporating chamber 5 is maintained at or below the saturated vapor pressure at the freezing point of the refrigerant water w, whereby the evaporation from the refrigerant water w in the evaporating chamber 5 is continued. Then, the refrigerant water w overflowing from the overflow weir 51b due to the vaporization heat capture by the evaporation causes the evaporation chamber around the watering area formed by the watering nozzle 10.
Refrigerant flowing down the surface while flowing down the surface
Freezing in the water w to produce slurry ice;
It also falls into the coolant water w sprinkled from the sprinkling nozzle 10
In the process, icing is caused to generate slurry ice, and the slurry ice having a higher ice particle ratio reaching the slurry outlet 5E is led out from the slurry outlet 5E to the primary side supply passage 2a. Therefore, the absorption chamber 6 functions as an exhaust unit.

The coolant water w is caused to flow along the inner surface of the evaporating chamber 5 to prevent the ice particles a in the coolant water from aggregating and integrating to grow into a large ice block. Slurry ice in which fine ice particles a are distributed in water is efficiently generated.

In FIG . 1 , reference numeral 20 denotes an initial operation vacuum pump for lowering (evacuating) the pressure in the evaporation chamber 5 to a predetermined pressure or less at the start of the initial operation of the ice slurry producing apparatus 1.

The inner surface of the evaporating chamber 5 is water-repellent, so that the coolant water w can easily flow along the inner surface of the evaporating chamber 5, and the coolant water w Even if there is a place where the fluid does not flow, it hardly freezes in the state where the coolant water w adheres to the place, and even if it freezes in the state where the coolant water w adheres, the adhesive force is weakened, The attached ice is washed away by the coolant water w.

In order to make the inner surface of the evaporation chamber 5 water-repellent, the wall of the evaporation chamber 5 itself is formed of a water-repellent material such as Teflon (trade name) , trifluoroethylene, polypropylene, or polyethylene. Alternatively, a plate or a film of these water repellent materials is stuck on the inner surface of the evaporation chamber 5. Alternatively, a configuration in which kerosene, paraffin, stearic acid, or the like is applied to the inner surface of the evaporation chamber 5 may be employed.

On the other hand, as shown in FIG. 1, the ice heat storage tank 4 is provided with a buffer 21 for colliding the slurry ice supplied from the primary side feed line 2a into the tank. The buffer 21 prevents the stored material in the portion 4a from being disturbed by the force of the supply slurry ice,
In the storage part 4a, the ice particles a are accumulated in the upper layer in a specific gravity separation mode.

The secondary feed line 2b for taking out the slurry ice to the cold heat consuming system 3 side is opened in the upper part of the storage part 4a in the ice heat storage tank 4, so that the ice heat storage tank 4 is Along with the original cold-heat storage function, it also functions as a trap for sending the slurry ice having the highest possible ice particle density to the cold-heat consuming system 3.

The ice particles a of the slurry ice which is supplied from the primary side feed line 2a to the ice heat storage tank 4 and collides with the buffer 21.
Is the storage section 4a in the form of overflowing the buffer 21.
To the upper layer.

When the pressure in the evaporating chamber 5 is reduced (vacuum), the hydrostatic heads of the primary-side feed path 2a and the primary-side recirculation path 2d due to the height difference between the evaporating chamber 5 and the ice heat storage tank 4 are used. In order to keep the water level at a predetermined level, the evaporating chamber 5 is arranged higher than the ice heat storage tank 4 by a height corresponding to the lower pressure, thereby making the ice heat storage tank 4 open to the atmosphere. Can also keep the stored water level at a predetermined appropriate level.

[0042] The shape of the ice particles a shown in FIGS. 1 and 2, the size, for a set density, etc., are schematic form for ease of understanding in the drawings.

Another Embodiment Next, another embodiment will be described.

(A) Refrigerant water w is transmitted to the inner surface of the evaporation chamber 5
The specific configuration of the cooling water supply means S for supply to the evaporating chamber 5 so that the cooling water flows down is not limited to the configuration shown in the above-described embodiment, and may be variously changed. It is possible. Hereinafter, an example of a modified example of the refrigerant water supply means S for traveling down will be described with reference to FIGS. 4 to 6.
In this embodiment, the same components and members as those in the above-described embodiment are denoted by the same reference numerals.

In this embodiment, the evaporation chamber 5 is
2 is formed. The container 52 is formed by disposing a bottomed cylindrical body 52A such that the opening thereof faces downward, and connecting an inverted conical bottom 52B to the opening of the cylindrical body 52A. Further, a cylindrical body 52C having a smaller diameter than the cylindrical body 52A and having a flange portion 52a
In a state in which an annular slit 52D is formed between the inner surface of 2A and the tip of the flange 52a, the annular slit 52D is arranged inside the cylindrical body 52A concentrically with the cylindrical body 52A. And the cylindrical body 52
A, the flange 52a of the cylindrical body 52C, and the cylindrical body 52C.
The peripheral wall of C forms an upward annular groove 52E having an annular slit 52D at the bottom.

Then, approximately 4 in the circumferential direction in the groove 52E are formed.
A water supply header 22 is connected to each of the equally divided portions, and the primary side return path 2 d and the condensed water path 9 are connected to the water supply header 22. Further, a proportional valve V1 for adjusting the flow rate is interposed in the primary side return path 2d, and a sprinkling return path 2e is branched from the primary side return path 2d upstream of the proportional valve V1. The sprinkling return path 2 e is connected to the sprinkling nozzle 10.

The inverted conical bottom 5 of the container 52
A slurry outlet 5E for discharging the slurry ice is provided at the top of 2B, and the primary feed path 2a is connected to the slurry outlet 5E.

By adjusting the flow rate by the proportional valve V1, the coolant water w is stored in the groove 52E.
Coolant water w by outflow from the annular scan <br/> slit 52D over the entire circumference of the annular slit 52D, by flowing down the refrigerant flowing water w in the state that Tsutawa the inner surface of the container 52 over the total internal periphery of the container 52 the slurry The outlet 5E is reached.

That is, in this alternative embodiment, the refrigerant
Evaporate so that water w is transmitted down to the inner surface of evaporation chamber 5
The cooling water supply means S for flowing down to be supplied to the chamber 5 is
The annular slit 5 is formed by the slit 52D.
The supply coolant water w (outflow coolant water) from the 2D is sprayed by the watering nozzle 1
0 inside the evaporation chamber around the sprinkling area (inside of vessel 52)
Surface) to the bottom of the evaporation chamber 5 by flowing down
is there.

[0050] The shape of the ice particles a shown in FIGS. 4 and 5, the size, for a set density, etc., are schematic form for ease of understanding in the drawings.

(B) Another embodiment will be described with reference to FIG. In this embodiment, the same components and members as those in the above-described embodiment are denoted by the same reference numerals. In this embodiment, the evaporation chamber 5 is formed by a container 53. The container 53 is different from the container 51 in the above embodiment in that a flat bottom 53C is provided instead of the inverted conical bottom 51C in the container 51, and a slurry outlet 5E is provided at the center of the flat bottom 53C. The other points are the same as those of the container 51.

The groove 51D is connected to the primary side recirculation passage 2d and the condensed water passage 9, and the bottom of the evaporation chamber 5 is connected to the watering nozzle 10 by the watering circulation passage 11.
In addition, a circulation pump P3 is interposed in the water spray circulation path 11.

That is, the primary side return path 2d and the condensate water path 9
The coolant water w supplied to the groove 51D from the spilled water flows over the entire circumference of the overflow weir 51b and overflows from the overflow weir 51b as the coolant water supply means S for flowing down. Formed by the watering nozzle 10 over the entire inner surface
The slurry is allowed to flow down the inner surface of the container 53 around the water area to reach the slurry outlet 5E. Further, the discharge amount of the circulation pump P3 is adjusted so that the density of the ice particles a in the slurry ice derived from the slurry outlet 5E becomes an appropriate density and the refrigerant water w does not accumulate too much at the bottom of the container 53. Then, the coolant water w is pumped up from the bottom of the container 53 and sprayed from the watering nozzle 10.

Thus, while the bottom of the evaporating chamber 5 is formed in a planar shape, the refrigerant water w always flows at the bottom of the evaporating chamber 5 so that the refrigerant water w does not stay at the bottom of the evaporating chamber 5. It is.

The shape, size, aggregation density and the like of the ice particles a shown in FIG. 7 are schematically illustrated for easy understanding on the drawing.

(C) In the above-described embodiment, the case where the container 51 for forming the evaporation chamber 5 is formed so as to have a circular cross-sectional shape is used.
The container for forming the evaporation chamber 5 may be formed so that the cross-sectional shape thereof is polygonal.

(D) As the exhaust means, various means other than the absorption chamber 6 shown in the above embodiment can be applied, and for example, a vacuum pump can be applied.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an evaporative ice slurry generating apparatus according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of an evaporation chamber.

FIG. 3 is a cross-sectional plan view of the evaporation chamber.

FIG. 4 is an overall configuration diagram of an evaporative ice slurry generating apparatus according to another embodiment.

FIG. 5 is a longitudinal sectional view of an evaporating chamber of an evaporating ice slurry producing apparatus according to another embodiment.

FIG. 6 is a cross-sectional plan view of an evaporating chamber of an evaporating ice slurry producing apparatus according to another embodiment.

FIG. 7 is an overall configuration diagram of an evaporating ice slurry generating apparatus according to another embodiment.

[Explanation of symbols]

3 Cold Heat Consumption System 5 Evaporation Chamber 6 Exhaust Means 10 Spraying Nozzle 5E Slurry Outlet 51b Overflow Weir a Ice Particle w Refrigerant Water P3 Recirculation Pump S Refrigerant water supply means for flowing down

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 5/00

Claims (3)

(57) [Claims] An evaporation chamber (5) to which coolant water (w) is supplied.
And evaporates while lowering the indoor pressure of the evaporation chamber (5).
By discharging the vapor of the refrigerant water (w) from the chamber (5),
Freezing of the indoor refrigerant water (w)
The slurry in which the ice particles (a) are distributed in the evaporation chamber
The exhaust means (6) generated in (5) and the generated slurry flows out from the bottom of the evaporation chamber (5).
Outlet (5) which is fed to the cold heat consuming system (3)
E), wherein the evaporating ice slurry generating apparatus is provided with the evaporating ice slurry generating apparatus, wherein refrigerant water (w) is sprinkled into the evaporating chamber (5).
A watering nozzle (10) for promotion is provided,
(W) is transmitted to the inner surface of the evaporating chamber (5) to flow down.
And the refrigerant water for flowing down to supply to the evaporation chamber (5)
A supply means (S) is provided, and the coolant supplied by the coolant water supply means (S) for flowing down is provided.
The water (w) is in the watering area formed by the watering nozzle (10).
By flowing down the surface of the surrounding evaporating chamber, the evaporating chamber (5)
An evaporative ice slurry generator that reaches the bottom. Wherein said bottom portion of the evaporation chamber (5) formed in the opposite cone shape, evaporative ice slurry of Aru claim 1, wherein provided the slurry outlet of the (5E) on top of the opposite cone-shaped Generator. 3. An evaporation chamber (5) from the bottom of said evaporation chamber (5).
The refrigerant water (w) is pumped, and the pumped refrigerant water (w)
Pump (P3) for supplying water to the watering nozzle (w)
The evaporative ice slurry generator according to claim 1, further comprising: