MX2013001631A

MX2013001631A - Ice storage unit.

Info

Publication number: MX2013001631A
Application number: MX2013001631A
Authority: MX
Inventors: Sven-Olaf Kluee
Original assignee: Heat Transfer Technology Ag
Priority date: 2010-08-11
Filing date: 2011-05-03
Publication date: 2013-10-03
Also published as: BR112013003152A2; RU2013110238A; EP2418441A1; ES2411934T3; CL2013000392A1; WO2012019792A1; EP2418441B1

Abstract

The invention relates to improvements in ice storage units as used in particular in milk cooling systems. The invention relates in particular to a refrigeration module (1) for lowering an ice storage unit into an ice storage reservoir (50) filled with a first fluid medium, comprising a pipe assembly (10) by means of which an inlet opening (11) and an outlet opening (12) for a second fluid medium are connected to each other, a system mounting (20) to which the refrigeration module (1) can be fastened in the ice storage reservoir (50) and to which the pipe assembly (10) is fastened, wherein an inlet opening (25) for the first fluid medium is provided on the system mounting (20) and the system mounting (20) has fluid-connective outflow openings (26) on the lower face (3) of the refrigeration module (1) having the inlet opening (25) for the first fluid medium, wherein said outflow openings are arranged so that the first medium flowing out of the outflow openings (26) is equally distributed over the surface of the refrigeration module (1).

Description

ICE STORAGE UNIT FIELD OF THE INVENTION The invention relates to improvements in ice storage units, as they are used, in particular, in milk cooling installations.

BACKGROUND OF THE INVENTION After milking, the milk should be refrigerated within two hours at 3 to 5 ° C, to ensure a high quality milk. The milk released from the whey can be refrigerated in this case by means of refrigeration in storage or by circulation cooling. In both cooling methods it is known to use cold water for cooling the milk. In the case of circulation cooling, a heat exchanger is used, through one of whose circulation channels milk is conducted, cold water is conducted through the other. An exchange of heat takes place between the warm milk and the cold water, with which the milk is cooled. In the case of refrigeration in storage, the milk is in a tank, cooled by cold water, which then also refrigerates the milk.

In dairy plants, for the cooling of milk is not necessary, in general, a continuous power of high refrigeration. Rather, only high cooling power is needed when a milk freshly released from the whey - and, therefore, tempered - is fed to the dairy facility.

To reduce the cooling power to be installed in the installation, the use of ice storage units is known. These ice storage units can perform the "intermediate storage" of the cold. The ice storage units are "charged" in this case by cold generators with lower power for a certain period of time and can again yield in the short term the accumulated cooling power, which may be above the power of Cooling of the cold generators. In this way, it can be ensured that in the installation for milk cooling, despite the lowest installed cooling power, sufficient accumulated cooling capacity is always available for cooling the milk released from the whey. A corresponding milk cooling installation is published, for example, in DE-A1-103 16 165.

The ice storage units known in the state of the art comprise an ice storage tank filled with water. Tube coils are arranged in the ice storage tank and connected thereto, through which a coolant can flow. By means of an exchange of heat through the walls of the pipe coils between the refrigerant refrigerated through a cold generator at a low temperature and the water in the ice storage tank, the water in the tank is cooled. ice storage. A container for cold water is created, which can be used for cooling milk - for example, through circulation cooling. The water heated after cooling the milk can be returned to the ice storage tank, where it is cooled again. The proportion, in which the cooling power stored in the ice bin can be transferred, is designated as "melt separation power".

The water in the ice storage tank can be cooled to the point that ice is formed, at least partially, in the ice storage bin. However, in order not to interrupt the described cooling circuit of the water from the ice storage tank to the cooling of the milk and vice versa, it must be procured during the formation of ice in the ice storage tank that enters the inlet and the outlet of the water in the ice storage tank is present, in principle, at least one circulation channel.

If only a single circulation channel is present and the ice storage tank is otherwise frozen like a glacier or frozen, then the surface over which the water current overflows, by virtue of the formation of the channel circulation, is small, so that the ice storage unit only has a reduced melt separation capacity. The zones of the ice storage unit, which are located away from the circulation channel, can not, in effect, contribute in the case of freezing like a glacier, to the cooling of the water circulating through the circulation channel.

In known ice storage tanks, the tube coils are galvanized, in general. Corrosion can cause irreparable damage to the pipe coils. In this case, the entire ice storage unit must be replaced together with the tube coils and the ice storage tanks. This is a costly and laborious process.

SUMMARY OF THE INVENTION The invention has the task of creating devices, which allow a simple and economical repair of ice storage units in the case of corrosion and damage. which guarantee a high melting separation capacity in ice storage units.

This task is solved by means of devices according to the independent claims and the dependent claims. Advantageous developments are deduced from the dependent claims.

Accordingly, the invention relates to a cooling module for lowering an ice storage unit into an ice storage tank filled with a first fluid medium, comprising a pipe arrangement, by means of which a Inlet port and an outlet orifice for a second fluid medium are connected to each other, a fixing support for the system, with which the cooling module can be fixed in the ice storage tank and in which the arrangement is fixed of pipes, in which an inlet hole for the first fluid medium is provided in the fastening bracket of the system, and the fastening bracket of the system has flow outlet openings in the lower side of the cooling module connected in communication of fluid with the inlet for the first fluid medium, which are arranged in such a way that the first medium circulates from the orifices The output of the flow is distributed in a uniform manner on the surface of the cooling module, and in which is provided an air blowing device with an air feed hole and with several outlets of the air stream, wherein the outlets of the air stream are disposed on the underside of the cooling module, such that the air circulating from the outlet orifices of the air stream is distributed uniformly over the surface of the cooling module.

The invention further relates to an ice storage unit comprising an ice storage tank filled with a first fluid medium and at least one cooling module according to the invention lowered into the ice storage tank.

The invention also relates to an assembly for the retrofitting of ice storage tanks, comprising at least two cooling modules of the same structure according to the invention, in which the inlet orifice and the exit orifice for the second fluid medium, the air supply orifices as well as the inlet port for the first fluid medium of the cooling modules are connected in parallel.

Furthermore, the invention relates to a set of ice storage units, comprising at least two cooling modules of the same structure according to the invention, which are lowered, respectively, inside an ice storage tank, and the inlet port and the outlet port for the second fluid medium, the air supply ports as well as the inlet port for the first fluid medium of the cooling modules are connected in parallel.

Some concepts used in relation to the invention are explained in detail below: Two orifices, among others, are considered "connected in fluid communication" when both are connected in such a way that a fluid is conducted from the first orifice, so that it can circulate through a defined channel towards the second orifice. A corresponding communication can be achieved, for example, through a pipeline.

Two or more orifices are "connected in parallel" when a fluid feed stream is distributed in a uniform manner over the two or more orifices or fluid streams coming from the two or more orifices are collected. A corresponding distribution of a fluid feed stream or a collection of fluid streams can be realized, for example, through a Y-shaped conduit. The devices are "driven in parallel" when the holes of the same time are connected in parallel in the devices.

The invention is based on the recognition that an economic repair in case of corrosion damage is possible through a modular structure of an ice storage unit.

According to the main claim, for this purpose a cooling module is proposed which comprises a pipe arrangement, which can be lowered into an ice storage tank. If corrosion damage occurs in a cooling module of this type, then only the cooling module has to be replaced, but not the ice storage tank or the entire ice storage unit. In the same way it is possible that in existing ice storage units with corrosion damage in the pipe coil only the damaged pipe coil is removed, while the ice storage tank is maintained. The cooling module according to the invention can then be lowered into the existing ice storage tank, thereby restoring the functional capacity of the ice storage unit.

In addition, according to the invention, it is provided that more than one cooling module is lowered in an existing or newly installed ice storage tank, the individual connections of the at least two cooling modules being connected to each other. way they are driven in parallel. Through the use of several cooling modules connected in parallel it is possible to install an optional cooling power, without the need for special construction and manufacture of a cooling module or a pipe arrangement. Rather, through a unit size of cooling modules, several of which, connected in parallel, can also be lowered into an ice storage bin, it is achieved that an optional multiple of the whole number of the ice can be installed. Cooling power of an individual cooling module as total cooling power. In this way, the cost advantages of series production in the construction and manufacture of the cooling modules can be fully exploited.

If an existing ice storage tank is also damaged or a new ice storage unit must be installed, then a set of ice storage units is provided according to the invention. The set of ice storage units comprises in this case several standardized cooling modules which - as described above - are driven in parallel and lowered, respectively, into an ice storage tank adapted to the size and power of the ice storage tank. Cooling of the cooling modules. Since each cooling module has been lowered into its own ice storage tank, the advantages of series production, as already described for the cooling modules, can also be transferred to the ice storage tanks. Depending on the total desired cooling power, the number of ice storage units with ice storage tanks and the cooling modules lowered inside them are determined which, when operated in parallel, supply the total desired cooling power.

In order to raise the melt separation power of an ice storage unit, it is provided in the cooling module according to the invention that an inlet for the first fluid medium is provided, and the fixing support of the system has holes outlet of the current in the lower side of the cooling module, which are connected in fluid communication with the inlet hole for the first fluid medium and are arranged in such a way that the first medium circulating from the outlet orifices of the current is distributed uniformly on the surface of the cooling module. In the first fluid medium it is the same fluid medium, with which the ice storage tank is filled, preferably, in particular, the hot water that flows from the process.

Through the admission of the first fluid medium on the cooling module according to the invention, the first fluid medium flowing into the ice storage tank is distributed in a uniform manner on the surface of the lower side of the cooling module . Since the admission of the first fluid medium takes place over the entire surface of the lower side of the cooling module, the formation of a single circulation channel is effectively prevented, which would result in a strong lowering of the melt separation power.

Since the supply of the first fluid medium to the ice storage tank is carried out through the cooling module according to the invention, it is also achieved that in existing ice storage tanks, in which the feed of the First fluid medium is carried out punctually, the melt separation power can be clearly raised through the use of a cooling module according to the invention. The first influent fluid medium - for example hot return water - is in fact introduced in a uniform manner between the pipe arrangement of the cooling module. This advantage is also achieved especially in the assembly according to the invention for the retrofitting of ice storage tanks.

To further raise the melt separation power, the cooling module further comprises an air blowing device. In this case, the air-blowing device has an air supply orifice and several outlets for the air flow arranged on the underside of the cooling module, so that the outlet openings of the air stream arranged in such a way that the air circulating from the outlet orifices of the air stream is distributed in a uniform manner on the surface of the cooling module. By means of the insufflation distributed in a uniform manner on the surface of the cooling module, high turbulence is achieved in the ice storage tank, at least in the area of the cooling module. By virtue of the turbulence achieved in this way, the formation of flow channels and, therefore, a lowering of the melt separation power is effectively prevented.

Although the first fluid medium is present exclusively in the liquid phase, an improvement of the ice storage unit is achieved through the blowing of air. Through the blowing of air, all the zones of the ice storage tank are thoroughly mixed, but at least the zone of the cooling module. Through the constant mixing of the first medium which flows from the outlet openings of the cooling module stream with the medium existing in the ice storage tank, a homogeneous distribution of the temperature in the reservoir is achieved. ice storage. In this way the configuration of individual temperature zones inside the. ice storage tank and, therefore, if necessary, temperature fluctuations in the first fluid medium that is extracted from the ice storage tank.

It is preferred that the inlet port and the outlet port for the second fluid medium, the inlet port for the first fluid medium and / or the air supply port are arranged on the upper side of the cooling module.

Furthermore, it is preferred that the fastening support of the system is made, at least partially, in the form of a tube and the inlet hole for the first fluid medium is connected in fluid communication with the outlet orifices of the flow for the first medium Fluid to each other through the tube-shaped parts of the system fixing bracket. The first fluid medium, which flows from the inlet hole towards the orifices of the current outlet, is therefore led through the fixing support of the system.

Furthermore, it is preferred that in the cooling module an outlet orifice and at least one intake hole of the current connected in fluid communication thereto be provided for the first means, the intake hole of the current being disposed between the side upper and lower side of the cooling module and the outlet hole preferably on the upper side of the cooling module. Since in a correspondingly configured cooling module, the first fluid medium can be taken from the ice storage tank through the intake port of the cooling module stream, no inlet or inlet holes need to be provided. output of any type in the ice storage tank, in which a corresponding cooling module is lowered. Accordingly, the ice storage tank can have a very simple configuration. In the case of existing ice storage tanks, the existing inlet and outlet holes can remain unused and can be closed. This offers the advantage that, independently of the inlet and outlet holes provided in an existing ice storage tank, a "normalized" circulation is achieved in the ice storage tank, the cooling power of the cooling unit being foreseeable. storage of ice, regardless of the existing inlet and outlet holes, where appropriate, in ice deposits.

Furthermore, it is preferred that the outlet hole on the upper side of the cooling module and the intake port of the current between the upper side and the lower side of the cooling module are connected in fluid communication with each other through a piece In the form of tube support 'fixing system.

Alternatively, it is also possible, of course, to use existing inputs and outputs in an ice storage bin. It is also possible to provide in ice storage units according to the invention, an outlet of the flow in the ice storage tank. The complexity of the ice storage tank would only rise insignificantly.

The pipe arrangement can preferably be configured as pipe coils. However, it is also possible to provide a plate cooler or an evaporator plate arrangement as an arrangement of manifolds.

It is preferred that the first fluid medium be water and the second fluid medium be a liquid coolant. The pipe arrangement is preferably galvanized or consists of stainless steel.

BRIEF DESCRIPTION OF THE FIGURES In the following, the invention is explained in detail with the aid of exemplary embodiments shown in the drawings. In this case: Figures la-c show a first embodiment of a cooling module according to the invention.

Figures 2a-b show a first embodiment of an ice storage unit according to the invention with a cooling module according to figure 1.

Figure 3 shows a first embodiment of an assembly according to the invention for retrofitting ice storage tanks with cooling modules according to figure 1.

Figure 4 shows a first embodiment of a set of ice storage units with cooling modules according to Figure 1.

Figure 5 shows a first embodiment of an ice storage unit; Y Figure 6 shows a second embodiment of an ice storage unit according to the invention.

DETAILED DESCRIPTION OF THE INVENTION In the figures the a c represents a cooling module 1 according to the invention in three different views, the figure representing the front view, the figures Ib the right side view and the figure the bottom view of the cooling module 1.

The cooling module 1 comprises a pipe arrangement 10 and a fixing support for the system 20.

The pipe arrangement 10 is wound several times, as shown, and connects an inlet 11 with an outlet 12. In the pipe arrangement 10, it is therefore a pipe coil. The second fluid medium, flowing through the inlet orifice 11 in the pipe arrangement 10, flows through the entire pipe arrangement 10, before it flows out again through the outlet opening 12. Inlet orifices 11, 12 are arranged in this case on the upper side 2 of the cooling module 1.

The fixing bracket of the system 20 comprises two U-shaped retaining elements 21, in which a pipe arrangement 10 is fixed. The crosspiece 22, as well as the side pieces 23, 24 of the retaining elements 21 are configured in the form of a tube. At the end, which is located on the upper side 2 of the holding module 1 of one of the side pieces 23 of each retaining element 21, an inlet hole 25 for a first fluid medium is provided in each case. This inlet hole 25 is connected in fluid communication, by virtue of the tube-like configuration of one of the side pieces 23 and of the transverse piece 22, with an outlet hole of the stream 26 provided, respectively, in the crosspiece 22. A first fluid medium, flowing through the inlet 25, flows accordingly through the retainer 21 and flows out through the outlet orifices of the stream 26. The outlet orifices 26 are arranged in this case in such a way that the first medium circulating from the outlet orifices of the stream 26 is distributed in a uniform manner on the surface - that is, the lower side 3 - of the cooling module 1.

In the other side part 24 of each retaining element 21, in the upper area between the upper side and the lower side 2, 3 of the cooling module 1 there is provided an intake hole for the stream 27 for the first medium. This intake hole of the stream 27 is connected in fluid communication through the other tube-shaped side part 24 to the outlet hole 28 for the first fluid medium, which is disposed on the upper side 2 of the cooling module 1. A first fluid medium flowing through the intake port of the stream 27 can therefore carry, through the other tube-shaped side piece 24 towards the outlet orifice 28. To prevent the first medium fluid passing directly from the inlet 25 towards the outlet orifice 28, a direct flow of fluid through the retaining element 21 is prevented by means of a separation wall (not shown) in the zone 29.

The cooling module 20 also has an air blowing device 30. The air blowing device 30 is constituted by a pipe system 31, an air supply port 32 being provided on the upper side 2 of the cooling module 1. The air supply port 32 is connected through the pipe system 31 with a structure 32 of the grid type disposed on the underside 3 of the cooling module 1. In the structure of pipes 32 of the grid type there are provided airflow outlet holes 33, through which the air fed into the pipe system 31 can escape through the orifice of air supply 32. The outlet holes 33 are arranged in this case in such a way that the air stream coming out of them is distributed in a uniform manner on the surface - that is, the lower side 3 - of the cooling module 1.

The fixing bracket of the system 20 also has legs 40, with which the fixing bracket of the system 20 can be fixed in an ice storage tank 50. In this case it is possible that the cooling module 1 is considered as fixed in the sense of this invention exclusively by virtue of its weight and the frictional force resulting therefrom between the legs 40 and the ice storage tank 50. Additionally it is possible that the legs 40 are fixed in the tank storage of ice 50 by means of other measures, for example a connection by spot welding. But it is also possible to provide for other or alternative means of security, with which the cooling module 1 can be fixed, for example, on the side walls of an ice storage tank.

The operation mode of the cooling module 1 of the figures is explained now with the aid of FIGS. 2a, b. In the exemplary embodiment illustrated in FIGS. 2 a, b, it is possible, on the one hand, to treat an ice storage unit according to the invention with a cooling module 1 and an ice storage tank 50. The same way can also be an existing ice storage tank 50, which is retrofitted with a cooling module 1 according to the invention. Therefore, by virtue of the essential coincidence between these two variants, they are treated together in the following explanation in a single exemplary embodiment.

The cooling module 1 of the figures a to c is lowered, as shown in figures 2a, b, inside an ice storage tank 50. The ice storage tank 50 is filled with a first fluid medium. The cooling module 1 is considered as fixed in the sense of this application simply by virtue of its force of weight and the resulting friction between the legs 40 and the ice storage tank 50.

The two inlet holes 25 are connected to each other by means of pipes 60, so that the first fluid medium flowing through the pipes 60 is distributed in a uniform manner over the two inlet holes 25. Therefore, they are connected in parallel. Also the two outlet holes 28 in the retaining elements 21 are connected in parallel, ie they are connected to each other through a system of pipes, in such a way that a first fluid distributed in a uniform manner over the system pipes 61 can be taken through the outlet holes 28 from the ice storage bin 50.

The inlet and outlet holes 11, 12 of the pipe arrangement 10 for the second fluid medium are incorporated through pipes 62, 63 in a refrigeration circuit not shown. This cooling circuit comprises a cold generator (not shown), which cools the second fluid medium at a low temperature, before it flows through the pipe 62 into the inlet 11 of the pipe arrangement 10. While the second fluid medium circulates through the pipe arrangement 10 an exchange of heat occurs through the wall of the pipe arrangement 10 with the first fluid medium found in the ice storage tank 50, thereby the first fluid medium is cooled, while the second fluid medium is heated in the pipe arrangement 10. The second hot fluid medium flows from the outlet orifice 12 through the pipes 63 back to the cold generator, where it is cooled again. In this way, a closed refrigerant circuit for the second fluid medium results.

As already described, the first fluid medium is cooled in the ice storage tank 50 by virtue of the heat exchange with the second fluid medium in the pipe arrangement 10. The first cooled fluid medium can be extracted through the the intake holes of the stream 27, the outlet orifices 28 and the tubes 61 from the ice storage tank 50. The first cooled fluid medium can thus be fed, for example, to a heat exchanger for cooling the milk. In a corresponding heat exchanger the first fluid medium is heated and then fed to the cooling module 1 through the pipes 60.

The first hot fluid flows through the inlet holes 25 and through the retaining elements 21 towards the outlet holes 26 in the crosspiece 22 of the retaining elements 21. The first hot fluid medium exits there and is mixed thoroughly with the first fluid medium which is in the ice storage tank 50. By virtue of the thorough mixing there is a heat exchange between the first coolest fluid medium, which is in the ice storage tank 50, and the first hottest influent fluid medium, thereby cooling the latter.

The outlet orifices of the stream 26 are arranged in such a way that the first fluid medium is distributed in a uniform manner on the surface or on the lower side 3 of the cooling module 1. In this way, it is achieved that in the tank of ice storage 50 do not form zones exclusively with the first fluid medium just introduced, which would then present a high temperature compared to the remaining areas in the ice storage tank. In this way, it is also prevented that, in the case of freezing of the first fluid medium in the ice storage tank 50, a single circulation channel is formed from the entrance to the exit for the first fluid medium, which would have a reduction of the fusion separation power. Rather, through the type according to the invention the feeding of the first fluid medium effectively prevents the formation of a circulation channel.

As additional measures for the homogenization of the first fluid medium that is in the ice storage tank 50 and for the prevention of the configuration of a circulation channel, an air blowing device 30 is provided. The air blowing device 30 it is connected through a pipe 64 with a source of compressed air (not shown). The compressed air flowing through the air supply port 32 to the air blowing device 30 escapes in the region of the lower side 3 of the cooling module 1 through the outlet openings of the air stream 33 provided there. The outlet openings of the air stream 33 are arranged in this case in such a way that the outgoing air stream is uniformly distributed over the surface of the cooling module 1. The air blows out causing turbulence in the air. frozen water tank 50, which lead to homogenization of the first fluid medium found in the ice storage tank 50. Through corresponding turbulences it is further ensured that in the case of freezing of the first fluid medium that is in the ice storage tank 50 a uniform freezing occurs along the pipe arrangement 10 and, in particular, no individual flow channels are produced between individual outlets of the stream 26 and the inlet orifices of the the current 27. The latter would result in an undesired reduction of the melt separation power.

As the first fluid medium, water can preferably be used, while coolant is preferably used as the second fluid medium. The pipe arrangement 10 is preferably galvanized or consists of stainless steel.

As an alternative to a tube coil as a pipe arrangement 10, the second fluid medium can also be conducted through a plate cooler or an evaporator plate arrangement. The technician may prefer without further planning a plate cooler instead of a pipe coil. 3 shows an assembly according to the invention for the retrofitting of an ice storage tank 50. In this embodiment, the ice storage tank is already present and must only be retrofitted with cooling modules 1 of according to the invention (see figures la-c).

In the illustrated embodiment, the ice storage tank 50 is dimensioned in such a way that two cooling modules 1 according to the invention can be lowered into the ice storage tank 50. The individual inlet and outlet orifices or either the feed holes 11, 12, 25, 28, 32 of the cooling modules 1 are connected in parallel through pipes 61 to 64, whereby the cooling modules 1 are driven in parallel.

Therefore, in the assembly according to the invention for the retrofitting of ice storage tanks, it is provided that depending on the size of the ice storage tank 50, the number of cooling modules 1 to be lowered inside is selected. of the ice storage tank 50. The cooling modules 1 of the same structure and which, therefore, can be produced economically in series production, have in this case a certain cooling power, for example 500 k . Since several cooling modules 1 of this type are lowered into an ice storage tank 50, an integral number of the cooling power of a storage module can be obtained as an optional total power, optionally. cold 1 individual. Therefore, in the illustrated embodiment, a total cooling power of 1000 kWh is achieved. But total cooling capacities of 1500 kWh, 2000 kWh, 2500 kWh, etc. are also possible. The assembly according to the invention for the retrofitting of ice storage tanks 50 therefore makes it possible in the case of ice storage units of discretionary size, whose pipe coils can no longer be used under corrosion, but whose ice storage tank is not damaged, easily retrofitted with a cooling module according to the invention or with a plurality of them. In this way, a costly individual manufacture of a pipe coil is suppressed, which should be exactly adapted for the ice storage tank 50 still present.

If in an existing ice storage unit, in addition to the pipe coil, the ice storage tank 50 is damaged, then a set of ice storage units is provided according to the invention, comprising, respectively, an ice storage unit. cooling module 1 according to the invention as well as an ice storage tank 50 adapted to the dimensions of this refligation module 1. The invention has recognized that a discretionary cooling power or a discretionary multiple of one can be achieved cooling power determined by operating in parallel ice storage units according to the invention through pipes 60-64. In Figure 4 a corresponding set of ice storage units is shown with corresponding pipes 60-64. In the set of ice storage units according to the invention, it is therefore possible to resort to a standardized ice storage unit and through the parallel connection of several ice storage units of this type it is possible to achieve a multiple of the whole number of the cooling power of an individual ice storage unit as the total cooling capacity. The set of storage units according to the invention offers the advantage that not only standardized cooling modules 1 can be used, but also standardized ice storage tanks 50, which enables economical serial production.

In the exemplary embodiments according to FIGS. 1 to 4, from the ice storage tank 50, the first fluid medium is withdrawn through circulation channels in the cooling module 1. However, as an alternative thereto, it is also possible that an outlet 51 is provided in the ice storage tank 50. A corresponding alternative ice storage tank 50 with outlet 51 is shown in figure 5.

Figure 6 shows another embodiment of an ice storage unit according to the invention. The ice storage unit according to figure 6 shows broad parallels with the ice storage unit according to figure 2, so it refers to the explanations made there. Only the differences between the embodiments according to FIGS. 2 and 6 are described below.

In the cooling module 1 of the exemplary embodiment according to FIG. 6, the cross-pieces 22 of the retaining elements 21 are configured as U-sections open downwards. Since the cooling module 1 rests with the transverse pieces 22 on the bottom of the ice storage tank 50, flow channels are formed in the transverse parts 22 for the first fluid medium. The transverse pieces 22 are provided with outlet holes 26, through which the first fluid medium is distributed in a uniform manner on the surface of the cooling module 1.

It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims

NOVELTY OF THE INVENTION Having described the present invention as above, it is considered as a novelty and, therefore, the content of the following is claimed as property: CLAIMS

1. - Cooling module (1) for lowering in an ice storage unit inside an ice storage tank (50) filled with a first fluid medium, comprising a pipe arrangement (10), by means of which a inlet hole (11) and an outlet hole (12) for a second fluid medium are connected to each other, a system fixing support (20), with which the cooling module (1) can be fixed in the tank ice storage (50) and in which the pipe arrangement (10) is fixed, in which an entry hole (25) for the first fluid medium is provided in the system fixing support (20), and the fixing support of the system (20) has on the lower side (3) of the cooling module (1) flow outlet holes (26) in fluid communication with the inlet (25) for the first fluid medium , which are arranged in such a way that the first means of The outlet from the flow (26) is distributed in a uniform manner on the surface of the cooling module (1), characterized in that an air blowing device (30) with an air supply orifice ( 32) and with several exit holes. the air stream (33), in which the outlets of the air stream (33) are arranged on the underside (3) of the cooling module (1), in such a way that the air circulating from the outlet orifices of the air stream (33) is distributed in a uniform manner on the surface of the cooling module (1).

2. - Cooling module according to claim 1, characterized in that the inlet hole (11) and the outlet hole (12) for the second fluid medium, the inlet hole .. (25) for the first fluid medium and / or the air supply port (32) are arranged on the upper side (2) of the cooling module (1).

3. Cooling module according to one of claims 1 or 2, characterized in that the fixing support of the system (20) is made, at least partially, in the form of a tube and the inlet (25) for the first fluid medium it is connected to the outlet holes of the stream (26) for the first fluid medium through tube-shaped parts of the system fixing support (20).

4. Cooling module according to one of the preceding claims, characterized in that an outlet orifice (28) and at least one inlet opening of the stream (27) connected in fluid communication are provided in the cooling module (1). with it for the first means, in which the intake hole of the stream (27) is arranged between the upper side and the lower side (2, 3) of the cooling module (1) and the outlet orifice (28) it is preferably provided on the upper side of the cooling module (1).

5. - Cooling module according to claim 4, characterized in that the intake hole of the stream (27) and the outlet orifice (28) for the second fluid medium are connected in fluid communication with each other through a piece in tube shape of the system fixing support (20).

6. Cooling module according to one of the preceding claims, characterized in that the pipe arrangement (10) is made as a pipe coil or plate cooling cone.

7. Cooling module according to one of the preceding claims, characterized in that the first fluid medium is water, the second fluid medium is a liquid coolant.

8. Cooling module according to one of the preceding claims, characterized in that the pipe arrangement (10) is galvanized or consists of stainless steel.

9. - Ice storage unit, comprising an ice storage tank (50) filled with a first fluid medium and at least one cooling module (1) lowered into the ice storage tank (50) according to claim 1.

10. - Ice storage unit according to claim 9, characterized in that the ice storage tank (50) has an outlet (51) for the first fluid medium.

11. - Ice storage unit according to claim 9 or 10, characterized in that the cooling module (1) is developed according to one of claims 2 to 8.

12. - Ice storage unit according to one of claims 9 to 11, characterized in that at least two cooling modules (1) are provided, which are lowered inside the ice storage tank (50), in which the orifice Input inlet (11) and exit orifice (12) for the second fluid medium, the air supply orifices (32) as well as the inlet (25) for the first fluid medium of the refrigeration modules ( 1) are connected in parallel.

13. - Set for the re-equipment of ice storage tanks (50), comprising at least two cooling modules (1) of the same structure according to one of claims 1 to 8, wherein the inlet (11) ) and the outlet orifice (12) for the second fluid medium, the air supply orifices (32) as well as the inlet port (25) for the first fluid medium of the refractive modules (1) are connected in parallel.

14. - Set of ice storage units, comprising at least two cooling modules (1) of the same structure according to one of claims 1 to 8, which are lowered, respectively, into an ice storage tank ( 50), and, the inlet port (11) and the outlet port (12) for the second fluid medium, the air supply ports (32) as well as the inlet port (25) for the first fluid medium of The cooling modules (1) are connected in parallel.