KR20140000909A

KR20140000909A - Heat exchanger using thermoelectric device

Info

Publication number: KR20140000909A
Application number: KR1020120068630A
Authority: KR
Inventors: 이환동; 이윤기
Original assignee: 이환동; 이윤기
Priority date: 2012-06-26
Filing date: 2012-06-26
Publication date: 2014-01-06

Abstract

The present invention relates to a heat exchanger for removing moisture contained in a heat transfer medium by using endotherms and heat generation of a thermoelectric element, a cylindrical case; A cooler in which a plurality of cooling fins protrude in a triangular shape toward one side of the base portion of the flat plate shape; A thermoelectric element that is in contact with the rear surface of the cooler in a flat plate shape and is respectively endothermic and generates heat by an applied power source; A heat dissipation bracket having a flat plate shape in contact with the rear surface of the thermoelectric element; A block-shaped radiator coupled to the rear surface of the heat radiating bracket and formed with at least one through hole in a horizontal direction; A cooling pipe installed through the through hole and supplied with cooling water; A power supply for supplying power to the thermoelectric element; A temperature sensor which detects a temperature in the case and outputs the electrical signal; And a controller configured to control the power output from the power supply according to a setting of a temperature input from an outside and a signal detected by the temperature sensor, wherein the cooler, the thermoelectric element, the heat radiating bracket, and the radiator are integrally coupled to each other. Assemblies are combined from all sides, each of the cooling fins of the cooler is integrally coupled so as to face each other, the plurality of assemblies are installed in a plurality of stacked in the case, the moisture contained in the hot and humid heat transfer medium introduced into the case Cooling is removed and discharged to low temperature dry heat transfer medium. According to the present invention, a thermoelectric element is coupled between a radiator and a cooler to absorb heat from the cooler, confine the inside, and dissipate heat from the radiator to the outside. It is discharged to a dry heat transfer medium, and the adjustment of voltage and current applied to the thermoelectric element is not only easy to maintain the set temperature, but also shortens the cooling and heating time of the cooler and the radiator. It is intended to be used for various equipment or devices for.

Description

Heat exchanger using thermoelectric device

The present invention relates to a heat exchanger using a thermoelectric element, and more particularly to a heat exchanger for removing moisture contained in the heat transfer medium by using the heat absorption and heat generation of the thermoelectric element.

Generally, heat exchangers are devices that transfer heat from a high temperature fluid to a low temperature fluid through heat transfer walls. Heat exchangers are commonly used in heaters, coolers, evaporators, condensers and the like. The heat transfer medium used to heat the fluid of interest is called heat, and on the contrary, the heat is used to dissipate heat. The most commonly used type of heat exchanger is metal pipes with heat transfer walls, such as casting type, double tube type, finned tube type and bushing type. The double tube heat exchanger has an inner tube and an outer tube, and heat exchange occurs between the fluid inside the inner tube and the fluid in the annular portion between the tube and the tube. This format is simple in structure, but has a small amount of processing. Larger ones use a bushing type with a large appearance and several small tubes. Heat flowing in the same direction in the flow of high fluid and low fluid is cocurrent type, and flowing in the opposite direction is called counterflow type and crossflow type is called crossflow type. Common heat transfer media used in industry include water, steam, air, flue gas, petroleum, mercury, sodium, potassium, and Dowtherm, a mixture of biphenylether and biphenyl.

In the past, a heat exchanger used a fruit, a refrigerant, or the like, and in particular, there was an environmental problem by using a freon gas or the like as a fruit or a refrigerant. In addition, the heat exchanger has a complicated structure such that the size and shape of the heat exchanger is manufactured in various ways. In addition, there is a problem in that it is difficult to adjust the capacity of the heat exchanger, as well as a long cooling or heating time.

The present invention is to solve the above problems, it is an object to remove the moisture contained in the heat transfer medium used in the heat exchanger using a plurality of assemblies in which the thermoelectric element, the radiator and the cooler are integrally combined.

The present invention, in order to achieve the above object, a heat exchanger, the cylindrical case; A cooler in which a plurality of cooling fins protrude in a triangular shape toward one side of the base portion of the flat plate shape; A thermoelectric element that is in contact with the rear surface of the cooler in a flat plate shape and is respectively endothermic and generates heat by an applied power source; A heat dissipation bracket having a flat plate shape in contact with the rear surface of the thermoelectric element; A block-shaped radiator coupled to the rear surface of the heat radiating bracket and formed with at least one through hole in a horizontal direction; A cooling pipe installed through the through hole and supplied with cooling water; A power supply for supplying power to the thermoelectric element; A temperature sensor which detects a temperature in the case and outputs the electrical signal; And a controller configured to control the power output from the power supply according to a setting of a temperature input from an outside and a signal detected by the temperature sensor, wherein the cooler, the thermoelectric element, the heat radiating bracket, and the radiator are integrally coupled to each other. Assemblies are combined from all sides, each of the cooling fins of the cooler is integrally coupled so as to face each other, the plurality of assemblies are installed in a plurality of stacked in the case, the moisture contained in the hot and humid heat transfer medium introduced into the case It is characterized by providing a heat exchanger using a thermoelectric element that is cooled and removed and discharged to a low temperature dry heat transfer medium.

In addition, in the present invention, an inlet through which the heat transfer medium is introduced through the blower fan is provided at the upper part of the case, and an outlet through which the heat transfer medium from which moisture is removed from the case is discharged to the outside, is provided at the bottom of the case. The water condensed from the heat transfer medium is discharged by passing through the cooler and discharged to the heat transfer medium to minimize contact with the heat transfer medium passing through the cooler, a collecting tank for collecting the water discharged from the drainage and the collecting tank A drainage device including a drain valve for discharging the water collected in the outside may be provided.

In addition, in the present invention, the power supply may include a main power supply and a plurality of sub-power supplies for supplying power to thermoelectric elements installed in each radiator.

In addition, in the present invention, the heat insulating material may be coupled between the thermoelectric elements coupled between the radiator and the cooler.

According to the present invention, a thermoelectric element is coupled between a radiator and a cooler to absorb heat from the cooler, confine the inside, and dissipate heat from the radiator to the outside. It is discharged to a dry heat transfer medium, and the adjustment of voltage and current applied to the thermoelectric element is not only easy to maintain the set temperature, but also shortens the cooling and heating time of the cooler and the radiator. There is an advantage that can be used for a variety of equipment or apparatus for.

1 is an exploded perspective view showing a heat exchanger using a thermoelectric device according to an embodiment of the present invention.
2 is a perspective view showing a combination of a radiator and a cooler in a heat exchanger using a thermoelectric device according to the present invention.
3 is a plan view showing the inside of the heat exchanger using a thermoelectric device according to the present invention.
Figure 4 is a side cross-sectional view showing the inside of the heat exchanger using a thermoelectric device according to the present invention.
5 is a structural diagram showing the operation of the heat exchanger using the thermoelectric device according to the present invention.

Hereinafter, an embodiment of a heat exchanger using a thermoelectric device according to the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, the heat exchanger 1 is for discharging the low temperature dry heat transfer medium after removing moisture from the high temperature and high temperature heat transfer medium. The heat exchanger 1 may be usefully applied to a facility or an apparatus for removing moisture contained in the heat transfer medium.

The case 2 is a substantially cylindrical shape in which the upper part and the lower part are sealed. The upper part of the case (2) is provided with an inlet (3) into which the hot and humid heat transfer medium flows. On the side of the case (2), an outlet (5) through which the heat transfer medium cooled to a predetermined temperature after the water is removed is discharged. It is provided. Blower fan (4) is mounted to the inlet (3) is good to allow the heat transfer medium to flow into the case (2).

In FIG. 4, the drainage device 10 is provided below the case 2. The drainage device 10 collects and discharges condensed water from the heat transfer medium while passing through the cooler and minimizes contact with the heat transfer medium passing through the cooler, and collects the water discharged from the drain. Collecting tank 12, and a drain valve 13 for discharging the water collected in the collecting tank to the outside is included. The drain 11 includes a function of blocking water from passing through the condensed water to the case 2 while collecting the condensed water.

Inside the case 2, the assembly 20 to which the cooler 21, the radiator 26, and the thermoelectric element 24 are coupled is integrally coupled in a substantially square pillar shape.

In FIG. 2, the cooler 21 has a plurality of cooling fins 23 protruding in a triangular shape toward one side of the base portion 22 having a flat plate shape. That is, the cooling fins 23 are formed to protrude from the edge of the base portion 22 toward the center at a constant rate. The projecting shape of the cooling fins 23 from the base portion 22 is approximately equal to an isosceles triangle. The spacing between the cooling fins 23 may vary depending on the installation position of the cooler 21.

The thermoelectric element 24 is in contact with the rear surface of the cooler 21 in the shape of a flat plate and coupled to each other by the applied power to endotherm and heat generation respectively. The thermoelectric element 24 is a device using various effects represented by the interaction between heat and electricity. In particular, the Peltier device using the Peltier effect, which is a phenomenon of absorbing or generating heat by electric current, is applied. Therefore, in the Peltier element using the Peltier effect, when two types of metal ends are connected and a current flows therethrough, one terminal absorbs heat and the other terminal generates heat in the current direction. By using semiconductors such as bismuth and tellurium, which have different electric conduction methods, instead of two kinds of metals, a Peltier device having efficient endothermic and exothermic effects can be obtained. It is possible to switch between the endotherm and the exotherm according to the current direction, and the endotherm and the calorific value are adjusted according to the amount of current, so that it is applied to a refrigerator with a small capacity or a precise thermostat near room temperature.

The heat dissipation bracket 25 is flatly contacted to the rear surface of the thermoelectric element 24 to be coupled. Both ends of the heat dissipation bracket 25 are formed. The heat radiating bracket 25 transfers heat generated from the thermoelectric element 24 to the radiator 26.

The radiator 26 is a block shape is coupled to the back surface in contact with the rear surface of the heat radiation bracket 25 and one or more through-holes 27 are formed in the horizontal direction.

The cooling pipe 15 is installed through one or more through holes 27 formed in the radiator 26. The cooling pipe 15 receives coolant at a predetermined temperature and absorbs heat generated from the radiator 26 to cool the cooling pipe 15. Corresponds to the water-cooled chiller to make it possible.

In FIG. 3, a plurality of assemblies 20 in which the cooler 21, the thermoelectric element 24, the heat dissipation bracket 25, and the heat sink 26 are integrally coupled to each other from the inside to the outside of the assembly 20 are provided in all directions. Combined. Since the cooling fins 23 of the cooler 21 are shaped like an isosceles triangle, the cooling fins 23 of the cooler 21 are integrally coupled to each other so as to face each other. The combination of the left and right coolers and the upper and lower coolers in a plane becomes diagonally divided. The plurality of assemblies 20 are stacked up and down in the case 2.

In addition, the heat insulating material 28 is coupled between the heat radiator 26 and the thermoelectric element 24 coupled between the cooler 21. The heat insulator 28 is such that heat generated in the radiator 26 is not absorbed by the cooler 21. In addition, the inner wall or outer wall of the case 2 is preferably provided with a heat insulating material for thermal insulation.

Therefore, the radiator 26 is installed in contact with the outer surface of the thermoelectric element 24 absorbs heat generated by the thermoelectric element 24 through the heat radiation bracket 25 to radiate heat, but the coolant circulated through the cooling pipe 15. The cooler 21 is cooled by the surface, and installed in surface contact with the inside of the thermoelectric element 24 is configured to absorb heat from the heat transfer medium passing from the top to the bottom.

In addition, the power supply 7 for supplying power to the thermoelectric element 24 has a plurality of sub-power supplies 9 for supplying power to the main power supply 8 and the thermoelectric element 24 installed in each radiator 26. Included. The main power supply 8 rectifies and converts the power applied from the outside, so that the regulated power is generated to supply the sub power supply 9 under the control of the controller 6.

The temperature sensor 14 detects the temperature in the case 2 and outputs an electrical signal. The temperature sensor 14 detects the temperature of the heat transfer medium discharged from the case 2 and converts the temperature into an electrical signal.

The controller 6 outputs a signal for controlling the power output from the power supply 7 according to the setting of the temperature input from the outside and the signal detected by the temperature sensor 14. The controller 6 controls the power supply 7 according to the temperature information set by the user and the detection value of the temperature sensor 14 to adjust the temperature of the heat transfer medium discharged from the case 2.

Operation of the heat exchanger using the thermoelectric element of the present invention configured as described above will be described with reference to FIG. 5.

First, when the heat exchanger is operated under the control of the controller 6, the heat exchanger 1 is introduced with a heat transfer medium through the blowing fan 4 of the inlet 3. The heat transfer medium flowing into the inlet (3) is hot and humid. The heat transfer medium flows through the cooler 21 located inside the plurality of stacked assemblies 20 that are integrally coupled to each other. At this time, the heat transfer medium passes through the cooling fins 23 of the cooler 21 and is cooled to a low temperature.

The cooler 21 may be changed in position according to the interval between the cooling fins 23. That is, by placing the cooler having a relatively narrow gap between the cooling fins 23 at the top to increase the cooling efficiency of the heat transfer medium, and placing the cooler having a relatively wide gap between the cooling fins 23 at the bottom to reduce the cooler temperature. By cooling to low temperature, the water contained in the heat transfer medium may be condensed or frozen.

In addition, the current and the voltage applied to the individual subpower supply 9 through the main power supply 8 of the power supply 7 may be changed under the control of the controller 6. This may control the degree of condensation by cooling the water contained in the high temperature and high temperature heat transfer medium passing from the case 2 to the lower portion, or may control the removal rate of water.

Moisture condensed while passing through the cooler 21 drops into water to the drainage device 10 installed in the case 2 lower. The dropped water is collected in the collecting tank 12 via the drain 11. Water collected in the collection tank 12 may be discharged by opening and closing the drain valve 13. The drain valve 13 may be automatically discharged when a predetermined amount of water is filled in the collection tank 12 under the control of the control unit 6.

The heat transfer medium from which moisture is removed while passing through the cooler is raised upward along the space between the radiator 26, that is, the radiator 26 and the case 2, and discharged into the low-temperature dry air through the outlet 5. At this time, the radiator 26 is cooled by the coolant delivered through the cooling pipe 15 to have little effect on the heat transfer medium passing through the cooler 21.

As described above, the heat exchanger using the thermoelectric element is used to cool the hot and humid heat transfer medium to be discharged to the low temperature dry heat transfer medium from which moisture is removed, and can be applied to various heat exchangers, and the size of the heat exchanger can be reduced.

While the invention has been shown and described with respect to the specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who has it will know it easily.

DESCRIPTION OF SYMBOLS 1: Heat exchanger 2: Case 3: Inlet 4: Blowing fan 5: Outlet 6: Control part 7: Power supply 8: Main power supply 9: Sub-power supply 10: Drainage 11: Drainage 12: Collection tank 13: Drain valve DESCRIPTION OF SYMBOLS 14 Temperature sensor 15 Cooling pipe 20 Assembly 21 Cooler 22 Base part 23 Cooling fin 24 Thermoelectric element 25 Heat dissipation bracket 26 Radiator 27 Through-hole 28 Insulation material

Claims

In the heat exchanger,
A cylindrical case;
A cooler in which a plurality of cooling fins protrude in a triangular shape toward one side of the base portion of the flat plate shape;
A thermoelectric element that is in contact with the rear surface of the cooler in a flat plate shape and is respectively endothermic and generates heat by an applied power source;
A heat dissipation bracket having a flat plate shape in contact with the rear surface of the thermoelectric element;
A block-shaped radiator coupled to the rear surface of the heat radiating bracket and formed with at least one through hole in a horizontal direction;
A cooling pipe installed through the through hole and supplied with cooling water;
A power supply for supplying power to the thermoelectric element;
A temperature sensor which detects a temperature in the case and outputs the electrical signal; And
And a control unit controlling power output from the power supply according to a setting of a temperature input from an outside and a signal detected by the temperature sensor.
A plurality of assemblies in which the cooler, the thermoelectric element, the heat dissipation bracket, and the radiator are integrally coupled to each other are coupled in all directions, and are integrally coupled to each other so that the cooling fins of the cooler face each other. A heat exchanger using a thermoelectric element that cools and removes moisture contained in the hot and humid heat transfer medium introduced into the case and discharges it to the low temperature dry heat transfer medium.

According to claim 1, wherein the upper portion of the case is provided with an inlet through which the heat transfer medium flows through the blowing fan, the case side is provided with an outlet for discharging the heat transfer medium from the moisture is removed to the outside, the lower case The water condensed from the heat transfer medium is discharged by passing through the cooler and discharged to the heat transfer medium to minimize contact with the heat transfer medium passing through the cooler, a collecting tank for collecting the water discharged from the drainage and the collecting tank Heat exchanger using a thermoelectric element having a drain device including a drain valve for discharging the water collected in the outside.

The heat exchanger of claim 1, wherein the power supply includes a main power supply and a plurality of subpower supplies for supplying power to thermoelectric elements installed in each radiator.

The heat exchanger of claim 1, wherein a heat insulating material is coupled between the thermoelectric elements coupled between the radiator and the cooler.