KR102513121B1 - Rapid cooling heat exchanger using cavitation generators and felt-thermal thermocouples - Google Patents

Abstract

The present invention relates to a rapid cooling heat exchanger using a cavitation generating means and a Peltier thermoelectric element in which cavitation generated by the cavitation generating means is frozen near a peltier and a high-temperature flow path is rapidly cooled by cavitation thawing and cavitation extinction processes. . The present invention, a sealed heat storage tank containing the cooling water to a certain water level; a solid flow pipe through which the high-temperature fluid injected into the heat storage tank and injected into the upper inlet exchanges heat with the cooling water to discharge the low-temperature fluid through the lower outlet; One or a plurality of peltiers provided at regular intervals outside the bottom of the heat storage tank and having one side cooling part attached to the surface of the heat storage tank; a heat sink module attached to the heating part on the other side of the peltier; one or more Venturi tubes provided at equal intervals on the inner surface of the bottom of the heat storage tank, attached to correspond to the position of the Peltier, and arranged vertically so that the inner passage narrows upward; and a cavitation generating means for generating a cavity (bubble) in the cooling water of the heat storage tank through the Venturi tube, wherein the cavitation generating means is located at the bottom of the Venturi tube through a bubble supply pipe from the outside of the heat storage tank. A bubble supplier for generating bubbles through a porous bubble generator by injecting air into the air; An ultrasonic generator provided on the inner bottom of the Venturi tube to change the particle size of bubbles generated by the bubble supply unit; wherein the cavitation inside the Venturi tube is performed by the ultrasonic generator so that the bubble particle size is small. As the specific surface area increases, the crystal nucleus generation rate by the Peltier cooling unit increases.

Description

Rapid cooling heat exchanger using cavitation generators and felt-thermal thermocouples}

The present invention relates to a rapid cooling heat exchanger using a cavitation generating means and a Peltier thermoelectric element, and more particularly, cavitation generated by a cavitation generating means is frozen near a peltier, and a high-temperature flow path is formed by thawing cavitation and cavitation extinction. It relates to a rapid cooling heat exchanger capable of rapid cooling.

Thermoelectric elements (hereinafter referred to as 'Peltier') include elements using the temperature change of electrical resistance by using the thermoelectric effect (thermistor), elements using the phenomenon that electromotive force is generated by the temperature difference (Seebeck effect), and current There is a device (Peltier device) using a phenomenon (Peltier effect) in which heat is absorbed (or generated) by

According to the heat transfer method of the heat exchanger, there are a surface heat exchanger, a regenerative heat exchanger, a liquid connection indirect heat exchanger, and a direct contact heat exchanger. The heat exchanger similar to that of the present invention is a heat storage type, which brings a solid heat storage agent (a medium for storing heat) into contact with a high-temperature fluid to absorb heat from the high-temperature fluid, and then contacts the low-temperature fluid to transfer heat to the low-temperature fluid. As the heat exchanger, there are a rotary regenerative heat exchanger, a valve type annular regenerative heat exchanger, and the like. When a conventional regenerative heat exchanger is used for a high-temperature fluid, it is difficult to complicate and compact the system.

(Patent Document 0001) Republic of Korea Patent Publication 10-2016-0078764 provides a cooling device using ultrasonic waves of a piezoelectric element that cools using ultrasonic waves generated from a piezoelectric element. A cooling device using ultrasonic waves according to an embodiment of the present invention is installed inside a housing containing a compressible working fluid, the housing divides a first space and a second space on both sides, and the first space and the second space are installed. A stack having a channel through which the working fluid vibrates and moves between two spaces, a pair of heat exchangers provided on both sides of the stack inside the housing, and the housing facing any one of the pair of heat exchangers Includes a piezoelectric element provided inside the.
(Patent Document 0002) Korean Patent Publication No. 10-2000-0059898 discloses an automatic ice maker using sonic wave refrigeration and a refrigerator employing the automatic ice maker. The automatic ice maker is a U-shaped resonator that stores inert gas inside, and a speaker that changes the temperature distribution inside the U-shaped resonator by applying negative pressure to the U-shaped resonator to compress and expand the molecules of the inert gas stored in the U-shaped resonator. , a heat exchanger that transmits the internal temperature of the U-shaped resonator to an ice-making container and forms a passage therein, and an electronic control unit that operates a speaker. As such, the wave cooling method converts wave energy into kinetic energy to obtain a cooling effect. For another example, the wave cooling device generates sound waves with a speaker provided on one side of a housing and transfers the wave energy of the sound waves to an internal passage of a stack installed in the housing, wherein a working fluid is provided on both sides of the stack for cold heat exchange. It cools while vibrating and moving between the heat exchanger and the hot heat exchanger.

Republic of Korea Patent Publication No. 10-2016-0078764 (published on July 5, 2016), title of the invention: cooling device using ultrasonic waves of piezoelectric elements. Republic of Korea Patent Publication No. 10-2000-0059898 (published on October 16, 2000), title of invention: automatic ice maker using sonic wave refrigeration and a refrigerator employing the automatic ice maker.

An object of the present invention is to discharge the high-temperature fluid flowing into the heat storage tank into low-temperature fluid by controlling the internal temperature of the heat storage tank in a rapid cooling method using a cavitation phenomenon and a peltier, and to reduce miniaturization and production cost, thereby providing economical rapid cooling heat exchange. is to provide gear.

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In order to achieve the above object, the present invention is a sealed heat storage tank in which the cooling water is contained to a certain water level; a solid flow pipe through which the high-temperature fluid injected into the heat storage tank and injected into the upper inlet exchanges heat with the cooling water to discharge the low-temperature fluid through the lower outlet; One or a plurality of peltiers provided at regular intervals outside the bottom of the heat storage tank and having one side cooling part attached to the surface of the heat storage tank; a heat sink module attached to the heating part on the other side of the peltier; one or more Venturi tubes provided at equal intervals on the inner surface of the bottom of the heat storage tank, attached to correspond to the position of the Peltier, and arranged vertically so that the inner passage narrows upward; and a cavitation generating means for generating a cavity (bubble) in the cooling water of the heat storage tank through the Venturi tube, wherein the cavitation generating means is located at the bottom of the Venturi tube through a bubble supply pipe from the outside of the heat storage tank. A bubble supplier for generating bubbles through a porous bubble generator by injecting air into the air; An ultrasonic generator provided on the inner bottom of the Venturi tube to change the particle size of bubbles generated by the bubble supply unit; wherein the cavitation inside the Venturi tube is performed by the ultrasonic generator so that the bubble particle size is small. As the specific surface area increases, we propose a cavitation generator and a rapid cooling heat exchanger using a Peltier thermoelectric element, characterized in that the rate of crystal nucleation by the Peltier cooling unit increases.
According to the present invention, the solid flow pipe is formed in a zigzag or manifold shape inside the heat storage tank, so that the thermal contact time with the cooling water is extended.
According to the present invention, the solid flow pipe is characterized in that a cooling plate and cooling fins are formed on the surface to increase cooling efficiency.
According to the present invention, it is characterized in that it is configured to further include; a blowing fan for condensing water vapor in the upper layer of the heat storage tank by supplying external air to the inside from one side of the upper part of the heat storage tank.
According to the present invention, the temperature sensor for measuring the cooling water temperature of the heat storage tank; and a control unit for controlling the operation of the peltier and the cavitation generating means by processing the measured value received from the temperature sensor.

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According to an embodiment of the present invention, cavitation is generated by the cavitation generating means, the cavitation passing through the cooling part of the peltier is frozen while moving through the venturi tube, and the frozen cavitation rises while thawing and cavitation disappears. Through the forced circulation of cooling water, there is an effect of rapid cooling.

In addition, the present invention has an effect of increasing the cooling effect by supplying cold wind to the blower fan at the top of the regenerator to condense water vapor to recover heat, and resupplying the condensed liquid to the surface of the cooling water. In addition, it has the effect of rapidly cooling the high-temperature fluid in a minimum size by using a cavitation generating means and a peltier with a simple configuration, and has an economical advantage.

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1 is a view showing a quick cooling heat exchanger according to an embodiment of the present invention.
Figure 2 is a diagram showing the temperature distribution inside the rapid cooling heat exchanger according to an embodiment of the present invention.
3 is a perspective view of a solid flow pipe 170 composed of a manifold.
4A is a diagram showing a cooling plate for increasing the cooling efficiency of the solid flow pipe 170.
4B is a view showing the cooling fin 150 structure surrounding the outside of the cooling plate.
5 is a graph showing the frequency of an ultrasonic transducer and the magnitude of cavitation that occurs.
6 is a diagram showing the structure of the bubble supply pipe 120 including the micro nozzle 181 and the shape installed at the bottom of the venturi pipe 200.
7 is a diagram showing a phase transition graph for cooling water (water).
8 is a diagram showing the operation of cavitation according to ultrasonic sound pressure.
9 is a diagram showing a phenomenon that occurs when cavitation disappears in a fluid.
10 is a diagram showing a rapid cooling process step by step according to an embodiment of the present invention.

The rapid cooling heat exchanger of the present invention includes a sealed heat storage tank 100 in which cooling water is contained to a certain level; a solid flow pipe 170 that is injected into the heat storage tank 100 and heat-exchanges the high-temperature fluid injected through an upper inlet with cooling water to discharge the low-temperature fluid through a lower outlet; One or a plurality of peltiers 130 provided on the outside of the bottom of the heat storage tank 100 at equal intervals and attached to the surface of the heat storage tank 100 with a cooling part on one side; A heat sink module 140 attached to the heating part on the other side of the peltier 130; One or a plurality of venturi tubes 200 provided on the inner surface of the bottom of the heat storage tank 100 at equal intervals, attached to correspond to the position of the peltier 130, and arranged vertically so that the internal passage narrows upward; and a cavitation generating means for generating a cavity (bubble) in the cooling water of the heat storage tank 100 through the venturi tube 200, wherein the cavitation generating means is outside the heat storage tank 100. a bubble supplier 120 for generating bubbles through a porous bubble generator 182 by injecting air into the bottom of the venturi tube 200 through the bubble supply pipe 180; An ultrasonic generator 110 provided on the inner bottom of the venturi tube 200 to change the particle size of bubbles generated in the bubble supplier 120; further comprising, cavitation inside the venturi tube 200 It is characterized in that the generation rate of crystal nuclei by the cooling unit of the Peltier 130 increases as the specific surface area increases as the bubble particle size decreases by the ultrasonic generator 110.
In the rapid cooling heat exchanger of the present invention having the above characteristics, the cavitation generated by the cavitation generating means can be finely frozen by the cooling function of the peltier 130. The cavitation melted inside the heat storage tank 100 warmed by the hot flow path expands while moving upward, and the cooling water inside the heat storage tank 100 is forcibly circulated through the cavitation extinction process, thereby rapidly cooling the inside. In addition, cold wind is supplied to the inside of the heat storage tank 100 by the blower fan 160 at the top, and water vapor generated inside the heat storage tank 100 is rapidly condensed to cool the temperature of the upper part of the heat storage tank 100. In addition, the control unit controls the operation of the cavitation generating means 110, 120, 180, the peltier 130, and the blowing fan 160 with reference to the measured value of the temperature sensor 190, so that the cooled fluid can be discharged at an appropriate temperature.
A quick cooling heat exchanger according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

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The solid flow pipe 170 of FIG. 1 is a passage through which fluid flows, can support high temperature and high pressure, and can be configured as a zigzag horizontal or vertical pipe. In addition, the internal configuration of the horizontal or vertical pipe may be provided in the form of a manifold as shown in FIG. The inlet of the solid flow passage pipe 170 in FIG. 3 into which the high-temperature fluid is injected is separated from the water tank by an insulating material.

As shown in FIG. 1, the heat storage tank 100 includes a solid flow pipe 170 therein; A cooling fin 150 that is attached to the solid flow pipe 170 to increase a heat exchange area; ultrasonic generator 110; cooling water; bubble supply pipe 120; A Venturi tube 200 is provided. A coolant inlet cap outside the heat storage tank 100; Blowing fan 160; bubble supplier 120; temperature sensor 190; Peltier 130 and heat sink module 140; A control unit (not shown) for power driving is provided. In addition, the heat storage tank 100 is sealed except for the solid flow pipe 170 so that high-temperature water vapor is not exposed to the outside.

2 shows the temperature distribution in the heat storage tank 100. The temperature distribution is lower in the lower layer than the upper layer, and the density is higher in the lower layer than in the upper layer. Since the frozen cavitation is thawed as it rises, and the size of the cavitation quickly reaches a critical size in the middle layer and disappears, the temperature distribution according to the height of the heat storage tank 100 has a small temperature change in the upper and lower layers, and a lot of heat exchange in the middle layer It is done.

Although the cooling fin 150 of FIG. 1 can be configured alone as shown in FIG. 4A or 4B, in the embodiment, the cooling fin 150 having the concavo-convex structure of FIG. 4B is provided in the upper and lower parts of the cooling plate of FIG. It is provided to maximize the contact area with the cooling water in the heat storage tank 100.

The cavitation generating means of FIG. 1 is for generating cavitation and is composed of an ultrasonic generator 110, a bubble supplier 120, and a bubble supply pipe 180.

5 shows the particle size of cavitation versus the frequency of the ultrasonic generator 110. In the case of cavitation, the particle size of cavitation is large at low frequencies in the ultrasonic frequency band and becomes smaller at higher frequencies. The frequency selection of the ultrasonic generator 110 is determined in consideration of the size of the peltier 130 and crystal nuclei for freezing. The smaller the cavitation particle size, the larger the specific surface area, and crystal nuclei are easily generated in the cooling part of the peltier 130. However, if the size of cavitation is large, it is difficult to generate crystal nuclei, but the buoyancy is large and it can be effective for cooling. Therefore, considering the specific surface area, crystal nucleus, and buoyancy of the frequency of the ultrasonic generator 110 in FIG. 5 at the same time, an ultrasonic vibration frequency of 50 KHz to 150 KHz is appropriate.

6 shows the progress of cavitation generated by the ultrasonic generator 110 and the sound pressure of ultrasonic waves. On the surface of the ultrasonic generator 110, the negative pressure appears alternately with high pressure and low pressure, and at the low pressure position of the negative pressure, it is lower than the saturated vapor pressure of the liquid to generate cavitation as the liquid evaporates. As the sound wave progresses, cavitation is compressed and expanded. When the cavitation particle size reaches a critical size, it is compressed and exploded and is extinguished. The cavitational explosion pushes the coolant into the upper layer where it is less dense. In addition, low pressure is formed at the point of explosion, which effectively provides a cooling function by attracting the cooling water in the lower layer where the temperature is low.

The method of extinguishing cavitation consists of two methods shown in FIG. The isotropic extinguishing method pushes the antifreeze in an isotropic form while extinguishing by receiving the same compression in all directions, and the anisotropic extinguishing method forms a microjet and strongly pushes the coolant to the upper layer with jet pressure. The bubble supplier 120 may be composed of an air pump for exhausting external air to the bubble supply pipe 180 at a constant pressure or an air pump for cavitation mixed with cooling water. The bubbles generated in the bubble supplier 120 of FIG. 1 are exhausted adjacent to the peltier 130 through the bubble supply pipe 180 and the micro nozzle 181 disposed below the Venturi tube as shown in FIG. 6 .

As shown in FIG. 6 , the bubble supply pipe 180 may be provided with micro nozzles 181 such that bubbles have a radius of 2 μm to 4 μm, similarly to the ultrasonic generator 110 . The bubbles provided from the bubble supply pipe 180 operate in the same way as the cavitation described above by the negative pressure of the ultrasonic generator 110. When the micronozzle 181 of the bubble supply pipe 180 is enlarged to provide a lot of air, the cavitation generated by the ultrasonic generator 110 rises rapidly like the mist of an ultrasonic humidifier, and isotropic or anisotropic in the inside or surface of the cooling water As it disappears, the cooling efficiency is increased.

In the embodiment of the present invention, the ultrasonic generator 110, the bubble supply 120, and the bubble supply pipe 180 are provided at the same time, but the ultrasonic generator 110 or the bubble supply 120 and the bubble supply pipe 180 are selectively provided. can also be provided. At this time, the bubble properties of each device are different. The ultrasonic generator 110 provides negative pressure with high pressure and low pressure alternately so that cavitation repeats compression and expansion, and the bubble supplier 120 has a difference in that it forms simple micro bubbles, but the function of the cooling heat exchanger is the same. are provided As shown in FIGS. 1 and 5, the cavitation generating means 110, 120, and 180 are located at the bottom of the Venturi tube 200, and the peltier 130 and the cavitation generating means 110, 120, 180 are vertically positioned so that cavitation is generated and proceeds toward the upper layer. place in close proximity The flow rate of cavitation increases through the Venturi tube 200 and the pressure inside the Venturi tube 200 decreases, so that ice formation is facilitated.

Formation of ice formation will be described through a phase transition graph of water as cooling water in FIG. 7 . The same applies to using antifreeze as a coolant. In FIG. 7, cavitation occurs by the cavitation generating means 110, 120, and 180, and low pressure is formed through the Venturi tube 200, so that the pressure decreases from point A (liquid) to point B (gas), and cooling of the peltier 130 Adjacent to the part, a phase transition occurs from point B (gas) to point C (freezing), and fine crystal nuclei are created, and the crystal nuclei grow into ice.

As shown in FIG. 1, the cooling part of the Peltier 130 is in contact with the heat storage tank 100, and the heating part is disposed outside. In order to maintain the cooling performance of the peltier 130, the heating unit is bonded to the heat sink module 140 to increase the cooling efficiency of the peltier 130.

The temperature sensor 190 of FIG. 1 may be provided on the inner bottom of the heat storage tank 100 to measure the temperature of the cooling water in the lower layer and transmit the detected measured temperature (measured value) to the control unit.
The control unit (not shown) is a means for electronically (electrically) controlling the operation of the device, and processes the measured temperature received from the temperature sensor 190, the peltier 130, the cavitation generating means 110, 120, and 180, and the blowing fan. The operation (driving power) of 160 can be controlled.
The control unit applies a control signal to cool the Peltier 130 by applying a maximum current to the Peltier 130 when the temperature of the lower layer is higher than the set value using the temperature distribution diagram of FIG. 2 and to maximize the occurrence of cavitation. If the temperature is lower than the set value, the power applied to the peltier 130 is cut off, and the occurrence of cavitation is not blocked for forced circulation.

The blowing fan 160 of FIG. 1 condenses hot water vapor evaporating to the upper portion of the heat storage tank 100 and is provided so that the condensed cooling water can be supplied to the heat storage tank 100 again.
10 is a diagram showing a step-by-step cooling process (processor) according to an embodiment of the present invention. Referring to FIG. 10, the rapid cooling heat exchanger according to an embodiment of the present invention initially applies power to the cavitation generating means (110, 120, 180) for rapid cooling (P10); A step of forming a low pressure in the vicinity of the Venturi tube (P20); Driving the peltier 130 (P30); cooling the cooling water near the venturi tube (P40); Reaching the freezing point of the cooling water near the Venturi tube (P50); Formation of cavitation crystal nuclei in the vicinity of the Venturi tube (P60); growing crystal nuclei by freezing (P70); Primary cooling by heat exchange of frozen cavitation (P80); Pushing the coolant to the upper part of the lower density while the cavitation disappears (P90); Forcibly circulating cooling water to a place where cavitation is eliminated (P100); Condensing the water vapor by driving the blowing fan 160 (P110) is sequentially performed to forcibly circulate the cooling water inside the heat storage tank 100 to achieve rapid cooling.

In the step (P10) of applying power to the cavitation generating means (110, 120, 180), the ultrasonic generator 110 applies ultrasonic vibration having an oscillation frequency of 50 to 150 kHz or the bubble supplier 120 is operated. Ultrasonic vibration causes a cavitation phenomenon in the cooling water shown in FIG. 7 .

Cavitation is a phenomenon in which microbubbles are created and destroyed by pressure changes of ultrasonic vibrations when ultrasonic vibrations are propagated in a liquid, and it is accompanied by very high pressure and high temperature. This pressure and high temperature occurs for a short time, on the order of hundreds of seconds to thousands of seconds.

In the step (P20) of forming a low pressure in the vicinity of the venturi tube, when the cavitation generated by the ultrasonic generator 110 or the bubble generator passes through the narrowed tube, the speed increases and the internal pressure decreases.

In step P30 of driving the thermoelectric element of the peltier 130, power is applied to the peltier 130 based on the signal of the temperature sensor 190, and the cooling fan of the heat sink module mounted on the heating unit is driven. In the step of cooling the cooling water near the Venturi tube (P40), the cooling water in the portion of the Venturi tube adjacent to the cooling part of the Peltier 130 cools faster than the surroundings.

Referring to the phase transition graph at the stage where the cooling water reaches a certain point near the Venturi tube (P50), when the pressure in the Venturi tube decreases, the freezing point temperature of the cooling water rises from D->E, and the boiling point temperature goes from F->G It descends and reaches a certain point faster than its surroundings.

In the step of forming cavitation crystal nuclei near the Venturi tube (P60), crystal nuclei having a structure that easily grows into freezing or ice are formed. Due to the nature of crystal nuclei being sprayed at the same rate as the rate at which crystal nuclei are aggregated, aggregates cannot be formed. , a large number of crystal nuclei are produced. In addition, the pressure generated by the cavitation phenomenon when the bubble disappears and the discharge within the bubble trigger the formation of crystal nuclei.

In the step of growing crystal nuclei into freezing (P70), crystal nuclei (micro ice crystals) having a particle diameter of 0.01 to 0.001 mm centered on the crystal nucleus are rapidly grown by the cooling drive of the peltier 130, resulting in freezing. In the step of primary cooling by heat exchange of the frozen cavitation (P80), the frozen cavitation rising through the Venturi tube meets the cooled water warmed in the heat storage tank 100 and exchanges heat to provide a primary cooling function. In step P90 of pushing the cooling water to the upper part with low density as the cavitation disappears, when the cavitation is compressed and exploded, the high temperature and high pressure push the surrounding cooling water out. In the step of forcibly circulating the coolant to the place where the cavitation is eliminated (P100), low pressure is formed at the place where the explosion occurred, and the surrounding coolant is momentarily introduced to the forced circulation.

In the step of condensing the water vapor by driving the blowing fan 160 (P110), outside cold air is supplied into the heat storage tank 100 to condense the water vapor, and cooling water is re-supplied into the heat storage tank 100.

As described above, even if the high-temperature fluid is input to the heat storage tank 100 according to the embodiment of the present invention, the Peltier 130, the Venturi tube, the cavitation generating means 110, 120, and 180, and the blowing fan 160 are provided, so that the inside of the heat storage tank 100 A rapid cooling heat exchanger is provided by primary cooling heat exchange using ice and secondary cooling heat exchange forcibly circulated by cavitation explosion.

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100: heat storage tank
110: ultrasonic generator
120: bubble supplier
130: Peltier
140: Heat sink
150: cooling fan
160: blowing fan
170: solid flow pipe
180: bubble supply pipe
181: Micro nozzle
190: temperature sensor
200: Venturi tube

Claims (8)

A sealed heat storage tank 100 containing cooling water up to a certain level;
a solid flow pipe 170 that is injected into the heat storage tank 100 and heat-exchanges the high-temperature fluid injected through an upper inlet with cooling water to discharge the low-temperature fluid through a lower outlet;
One or a plurality of peltiers 130 provided on the outside of the bottom of the heat storage tank 100 at equal intervals and attached to the surface of the heat storage tank 100 with a cooling part on one side;
A heat sink module 140 attached to the heating part on the other side of the peltier 130;
One or a plurality of venturi tubes 200 provided on the inner surface of the bottom of the heat storage tank 100 at equal intervals, attached to correspond to the position of the peltier 130, and arranged vertically so that the internal passage narrows upward;
A cavitation generating means for generating a cavity (bubble) in the cooling water of the heat storage tank 100 through the venturi tube 200; includes,
The cavitation generating means,
a bubble supplier 120 for generating bubbles through a porous bubble generator 182 by injecting air from the outside of the heat storage tank 100 through the bubble supply pipe 180 to the bottom of the venturi tube 200;
Further including,
Characterized in that the crystal nucleus generation rate by the cooling part of the Peltier 130 increases as the specific surface area of the venturi tube 200 internal cavitation increases as the bubble particle size decreases by the ultrasonic generator 110. A rapid cooling heat exchanger using a cavitation generator and a Peltier thermoelectric element.
According to claim 1,
The solid flow pipe 170 is formed in a zigzag or manifold shape inside the heat storage tank 100 to extend the thermal contact time with the cooling water. A rapid cooling heat exchanger using a cavitation generator and a Peltier thermoelectric element.
According to claim 1,
The solid flow pipe 170 is a rapid cooling heat exchanger using a cavitation generator and a Peltier thermoelectric element, characterized in that a cooling plate and a cooling fin 150 are formed on the surface to increase cooling efficiency.
According to claim 1,
A blower fan (160) for condensing water vapor in the upper layer of the heat storage tank (100) by supplying external air to the inside from one side of the upper part of the heat storage tank (100); Quick cooling heat exchanger.
According to claim 1,
a temperature sensor 190 for measuring the temperature of the cooling water in the heat storage tank 100;
A control unit for controlling the operation of the peltier 130 and the cavitation generating means by processing the measured value received from the temperature sensor 190; rapid cooling heat exchange using a cavitation generator and a peltier thermoelectric element. energy.
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