DESCRIPTION

Field of the Invention

The present invention relates to a general purpose cold water and cold air generation system and method especially used in vehicles. Background of the Invention

The cold water generators known in the state of the art have complex structures, and also have high volume and weight values. For studies under -20°C with the cold water generators in the state of the art, expensive fluids and expensive system equipment are required. Expensive and complex components are required for the cold water generators known in the technique to realize heating function at the same time. The cold water generators in the state of the art operating with vortex method are inefficient, large part of the cold water which is generated is released to the environment and causes energy loss. Cold water generators with closed pressurized system operating with vortex method and using pressurized air have inefficient method of reusing the air which is higher than atmospheric pressure as a result of expansion. Noise level is high in cooling systems using vortex method.

The Unites States patent document US2009235672, an application in the state of the art, discloses a two-stage cooling system. The said system comprises two vortex tubes. The said vortex tubes give cold air into a cabin.

United States Patent Document no US4333017, another application known in the state of the art, discloses a system and method for closed loop vortex operations. The said system uses two vortex tubes. The hot outlets of the said tubes form one loop, and their cold outlets form another loop. These loops then are connected at an intersection point.

The United States patent document no. US6293108, an application in the state of the art, discloses a regenerative refrigeration system with mixed refrigerants.. The said system comprises two vortex tubes operating in closed loop. In the said system, one of the said vortex tubes is connected to the inlet of the first condenser, and a second vortex tube is connected at the outlet of the said condenser.

Summary of the Invention

The objective of the present invention is to provide a cascade cold water generation system and method which enables more economical cold water generation relative to similar systems with pressurized air.

Another objective of the present invention is to provide a cascade cold water generation system and method which can easily reach temperatures below -20°C. A further objective of the present invention is to provide a cascade cold water generation system and method which has a simple structure, takes small space, and the noise level of which is decreased.

Detailed Description of the Invention A cascade cold water generation system and method which developed to fulfill the objective of the present invention is illustrated in the accompanying figures, in which

Figure 1 is the flowchart of the cold water generation method.

Figure 2 is the schematic view of the cold water generation method.

The steps shown in the figures are individually numbered where the numbers refer to the following: 1. Cold water generation system

2. First cold volume

3. First vortex heat separator

4. Air pressure booster

5. Second cold volume

6. Second vortex heat separator

7. Pump

8. The system through which the water is desired to be circulated

9. Pressure decrease valve

100. Method

The inventive cascade cold water generation system (1) essentially comprises:

at least one first cold volume (2) which has a cooled water and air therein,

at least one first vortex heat separator (3) which separates the air going inside into two as cold and hot,

at least one air pressure booster (4),

at least one second cold volume (5) which has a cooled water and air therein,

at least one second vortex heat separator (6) which separates the air going inside into two as cold and hot,

at least one pump (7) which pumps cold liquid into the first volume (2) in order to create pressure difference between two volumes (2), (5),

at least one system through which the water is desired to be circulated (8),

at least one pressure decrease valve (9) which balances the pressure difference between two volumes (2), (5). The inventive cascade cold water generation method (100) comprises the steps of passing the pressurized air through the first cold volume (101), separating the air passed through the first cold volume into two as hot and cold air by expanding in the first vortex heat separator (vortex tube) (102),

giving the cold air to the first cold volume with douche method (103),

enabling the exit of the cold air which is again entering into the first cold volume as bubble (104),

separating the air exiting the first cold volume into two as hot and cold air by means of the second vortex heat separator by combining with the air exiting the air pressure booster (105), the cold air which goes out of the second vortex heat separator going to the second cold volume (106),

the cold air which goes out of the second cold volume going to the air pressure booster by combining with the hot air going out of the second vortex heat separator and going back to step 105 (107).

In the inventive cascade cold water generation method, after the pressurized air inlet is subjected to pre-cooling by being passed through the first cold volume (2) in which the cooled liquid and cooled air cooled by the vehicle system is present, it is expanded to a pressure value above ambient pressure in the first vortex heat separator (3) (vortex tube) and it is separated as hot and cold air. The cold air given into the liquid inside the first cold volume (2) with douching method and it is enabled to go out as bubble, and the liquid is enabled to be cooled. The air going out of the first cold volume (2) is combined with the air which goes out of the second cold volume (5) and the pressure of which is increased with the air pressure booster (4), and enters into the second vortex heat separator (6) in the same flow rate with the first vortex heat separator (3), and it is separated into two as hot and cold. Since the air cooled in the first cold volume (2) and the hot air going out of the second vortex heat separator (6) are preheated, they are approximately in level of ambient temperature. The cold air going out of the second cold volume (5) and the hot air going out of the second vortex heat separator (6) are combined and their pressure is increased in the pressure booster (4), and combined with the air going out of the second cold volume (2), and given to the second vortex heat separator (6) in this way. The air pressure booster (4) uses hot air going out of the first vortex heat separator (3) as drive air. In this way, twice as much air as the previous technique is circulated in the system. The hot liquid in the second cold volume (5) is pumped to the first cold volume (2) via a pump (7), and the pressure difference between two volumes (2), (5) is formed. In this way, the system (8) through which the cold water is desired to be circulated is connected between the first cold volume (2) and the second cold volume (5), and thus the volume (2,) (5), pressure is balanced with reverse flow. The pressure between two volumes (2), (5) is provided manually or electrically with the pressure decrease valve (9).

It is possible to develop a wide variety of embodiments of the invention. The invention cannot be limited to the examples described herein; it is essentially as defined in the claims.