KR101291875B1 - Water-cooled heat exchanger - Google Patents

Abstract

The present invention relates to a water-cooled heat exchanger, and arranged side by side in one direction and arranged side by side between the plurality of first fluid tubes and the plurality of first fluid tubes in which the first fluid flows. A heat exchanger core portion comprising a plurality of flowing second fluid tubes; A pair of first fluid header tanks having a first partition formed therein so that the first fluid flows in a zigzag manner in the plurality of first fluid pipes and mounted opposite to each other on a side of the heat exchanger core; A first fluid inlet formed in one of the first fluid header tanks of the pair of first fluid header tanks and a first fluid inlet through which the first fluid is introduced and a first fluid outlet through which the first fluid is discharged; A pair of second fluid header tanks having a second partition formed therein such that a second fluid flows in the zigzag manner in the plurality of second fluid pipes, and mounted to face side surfaces of the heat exchanger core; And a second fluid inlet formed in one of the second fluid header tanks of the pair of second fluid header tanks, and a second fluid inlet through which the second fluid is introduced, and a second fluid outlet through which the second fluid is discharged. It is characterized in that it is coupled to the pair of the second fluid header tank detachable.

Description

Water-cooled heat exchanger

The present invention relates to a heat exchanger, and more particularly, it is possible to reduce the weight of the heat exchanger, the separation of the header tank for supplying water is convenient for maintenance and to prevent damage to the heat exchanger core by freezing of water. To a water-cooled heat exchanger.

Figures 1a and 1b is a view illustrating the outline and operation principle of the heat exchanger registered by the applicant of the patent application (10-2009-0076191). As shown in FIGS. 1A and 1B, a conventional heat exchanger includes a first fluid inlet pipe 10, a first fluid outlet pipe 20, a first fluid header tank 30-1, 30-2, and a second fluid inlet port. The pipe 40, the second fluid outlet pipe 50, the second fluid header tank (60-1, 60-2), the heat exchanger core portion 70, and the partition 80. After each of the fluids introduced into the heat exchanger through the first fluid inlet pipe 10 and the second fluid inlet pipe 40 is heat-exchanged in the heat exchanger core part 70, the first fluid outlet pipe 20 and Discharged through the second fluid outlet pipe (50), respectively. A partition 80 is provided in the header tanks 30-1, 30-2, 60-1, 60-2 of each fluid to induce a perfect crossflow flow in the heat exchanger core portion 70 to improve heat transfer efficiency. .

However, since the existing heat exchanger is manufactured by welding each inlet and outlet pipe, the header tank and the core part, it cannot be disassembled and separated. Therefore, if water is not purified as a coolant, or if it contains water that contains lime, which is difficult to filter even if the water is filtered, foreign substances are deposited in the coolant flow path of the heat exchanger, which reduces heat transfer performance. The flow path may be partially blocked. When the refrigerator is operated while the flow path is blocked or a user's mistake does not operate the coolant pump, the stagnant water inside the heat exchanger freezes and expands in volume to rupture the heat exchanger core. When the heat exchanger core part is ruptured, water is introduced into the refrigerant line, which causes a fatal problem that the refrigeration system is damaged.

Republic of Korea Patent Publication No. 10-0943573 (Registration date 2010.02.12)

The present invention has been proposed to solve the conventional problems as described above, an object of the present invention is to enable the separation of the cooling water flow path from the heat exchanger core portion to clean the cooling water side flow path without having to wash using chemicals It is to provide a water-cooled heat exchanger.

In addition, another object of the present invention is to provide a water-cooled heat exchanger that can reduce the weight of the heat exchanger by using a material other than the metal in the header tank of the cooling water flow path of the heat exchanger.

In addition, another object of the present invention is to provide a water-cooled heat exchanger that can prevent the heat exchanger core portion from rupturing even if water is frozen due to the user's carelessness or product defects in the cooling water stagnation.

In order to achieve the above object, a water-cooled heat exchanger according to an aspect of the present invention, arranged side by side in one direction and between the plurality of first fluid pipe and the plurality of first fluid pipe in which the first fluid flows therein A heat exchanger core unit arranged side by side and including a plurality of second fluid tubes through which a second fluid flows; A pair of first fluid header tanks having a first partition formed therein so that the first fluid flows in a zigzag manner in the plurality of first fluid pipes and mounted opposite to each other on a side of the heat exchanger core; A first fluid inlet formed in one of the first fluid header tanks of the pair of first fluid header tanks and a first fluid inlet through which the first fluid is introduced and a first fluid outlet through which the first fluid is discharged; A pair of second fluid header tanks having a second partition formed therein such that a second fluid flows in the zigzag manner in the plurality of second fluid pipes, and mounted to face side surfaces of the heat exchanger core; And a second fluid inlet formed in one of the second fluid header tanks of the pair of second fluid header tanks, and a second fluid inlet through which the second fluid is introduced, and a second fluid outlet through which the second fluid is discharged. It is characterized in that it is coupled to the pair of the second fluid header tank detachable.

In the water-cooled heat exchanger according to an additional aspect of the present invention, a pair of second fluid header tanks includes a first coupling part including a plurality of first fastening holes to which a first fastener is fastened, and a pair of heat exchanger core parts is provided. A second coupling part including a plurality of second coupling holes to which the first fastener fastened to the coupling hole of the first coupling part is formed to be detachably coupled to the second fluid header tank of the second coupling part.

 The water-cooled heat exchanger according to another additional aspect of the present invention is characterized in that the pair of second fluid header tanks is an injection molding made of plastic.

The water-cooled heat exchanger according to another additional aspect of the present invention is characterized in that the first and second coupling portions are formed with an O-ring insertion groove into which the O-ring is inserted.

The water-cooled heat exchanger according to the present invention enables the separation of the cooling water flow path from the heat exchanger core part, so that the inside of the second fluid tube flowing through the cooling water of the heat exchanger core part can be easily cleaned without using chemicals.

In addition, the water-cooled heat exchanger according to the present invention has a useful effect of reducing the weight of the heat exchanger by using a material other than the metal in the header tank for supplying water.

In addition, the water-cooled heat exchanger according to the present invention has a useful effect of preventing the heat exchanger core portion from rupturing even if water is frozen due to the phenomenon that the coolant is stagnated inside the heat exchanger core portion due to user carelessness or product failure.

Figure 1a, 1b is an exemplary view for explaining the external view and the operating principle of the existing water-cooled heat exchanger.
Figure 2 shows the appearance of the water-cooled heat exchanger according to the present invention,
2a is a perspective view of a water-cooled heat exchanger,
2b is a front view of a water-cooled heat exchanger,
2c is a plan view of a water-cooled heat exchanger,
2d is an exploded view of a water-cooled heat exchanger.
3a shows a second fluid header tank according to the invention.
3B is a cross-sectional view taken along AA of FIG. 4.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.

Figure 2 shows the appearance of a water-cooled heat exchanger according to the present invention, Figure 2a is a perspective view of the water-cooled heat exchanger, Figure 2b is a front view of the water-cooled heat exchanger, Figure 2c is a plan view of the water-cooled heat exchanger, Figure 2d An exploded view of a water-cooled heat exchanger.

As illustrated, the water-cooled heat exchanger of the present invention is a pair of first fluid header tanks 130-1 and 130-mounted to face the heat exchanger core portion 100 and the heat exchanger core portion 100 so as to face each other. 2) and a pair of second fluid header tanks 160-1 and 160-2. In the present specification, the first fluid is a refrigerant, and the second fluid is cooling water.

As illustrated in FIG. 2D, the heat exchanger core part 100 is arranged side by side in one direction and includes a plurality of first fluid tubes 121 and a plurality of first fluid tubes 121 through which a first fluid flows. It includes a plurality of second fluid pipe 141 is arranged side by side between the second fluid flows therein.

In the pair of first fluid header tanks 130-1 and 130-2, a first partition is formed therein so that the first fluid flows in a zigzag manner within the plurality of first fluid pipes 121. The first fluid inlet 110 and the first fluid into which the first fluid flows into the first fluid header tank 130-1 of the pair of first fluid header tanks 130-1 and 130-2 are provided. The first fluid outlet 120 is discharged.

In the pair of second fluid header tanks 160-1 and 160-2, a second partition 180 is formed therein such that the second fluid flows in a zigzag manner in the plurality of second fluid pipes 141. The second fluid inlet 140 and the second fluid into which the second fluid flows into the second fluid header tank 160-1 of the pair of second fluid header tanks 160-1 and 160-2 are provided. A second fluid outlet 150 is discharged.

The pair of second fluid header tanks 160-1 and 160-2 is implemented as an injection molding made of plastic. Here, the plastic material is polyethylene terephthalate (PET), acrylic (Acryl), polycarbonate (PC), urethane acrylate (Urethane Acrylate), polyester (Polyester), epoxy acrylate (Epoxy Acrylate), polyvinyl chloride (PVC) ) Can be implemented. Since the pair of second fluid header tanks 160-1 and 160-2 are manufactured using a plastic material instead of a metal material, it is possible to simultaneously reduce the heat exchanger weight and reduce the material cost.

In a preferred embodiment, the heat exchanger core portion 100 and the pair of second fluid header tanks 160-1 and 160-2 are formed to be detachably coupled. According to this embodiment, as shown in Figures 2a to 2d, the pair of second fluid header tank (160-1, 160-2) is a plurality of first fasteners 170 are fastened respectively First coupling parts 161 and 162 including first fastening holes 175 and 176 are formed, and the heat exchanger core part 100 includes a plurality of second fastening holes 185 to which the first fasteners 170 are fastened. , Second coupling parts 101 and 102 including 186 are formed.

When the heat exchanger core part 100 and the pair of second fluid header tanks 160-1 and 160-2 are fastened, the first fastener 170 is provided with the first fastening holes 175 and 176 and the second fastening holes 170. The fastening holes 185 and 186 are fastened to the second fasteners 172. For example, the first fastener 170 may be a bolt, and the second fastener 172 may be implemented by a nut.

The fastening strength of the first fastener 170, the first coupling parts 161 and 162, and the second coupling parts 101 and 102 may be lower than the burst strength of the heat exchanger core part 100. Accordingly, when freezing occurs in the heat exchanger core part 100, a pair of second fluid header tanks 160-1 and 160-2 from the heat exchanger core part 100 before the heat exchanger core part 100 is damaged. Is separated.

Figure 3a shows a second fluid header tank according to the present invention, Figure 3b is a cross-sectional view A-A of FIG.

As shown in FIGS. 3A and 3B, a plurality of first fastening holes 175 are formed in the first coupling part 162 of the second fluid header tank, and an O-ring 200 having an O-ring 200 inserted therein to prevent leakage. Insertion groove 190 is processed. The second fluid header tank may be coupled to a heat exchanger core part (not shown) using a fastener (not shown) in the plurality of first fastening holes 175. If the internal cleaning of the heat exchanger core portion is required, the fastener (not shown) may be loosened to clean the cooling water flow line.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined only by the appended claims.

100: heat exchanger core
101, 102: second coupling part
110: first fluid inlet 120: first fluid outlet
121: first fluid pipe 141: second fluid pipe
130-1, 130-2: first fluid header tank
140: second fluid inlet 150: second fluid outlet
160-1, 160-2: second fluid header tank
161 and 162: first coupling portion
170: first fastener 172: second fastener
175 and 176: First fastening hole 180: Second partition
185, 186: second fastening hole
190: O-ring insert groove 200: O-ring

Claims (6)

A plurality of first fluid tubes arranged side by side in one direction and having a first fluid flowing therein, and a plurality of second fluid tubes arranged side by side between the plurality of first fluid tubes and having a second fluid flowing therein; A heat exchanger core portion comprising;
A pair of first fluid header tanks having a first partition formed therein such that the first fluid flows in a zigzag manner in the plurality of first fluid pipes, the first fluid header tanks mounted opposite to each other on a side of the heat exchanger core;
A first fluid inlet formed in one of the first fluid header tanks of the pair of first fluid header tanks and a first fluid inlet through which the first fluid is introduced and a first fluid outlet through which the first fluid is discharged;
A pair of second fluid header tanks having a second partition formed therein so that the second fluid flows in the zigzag manner in the plurality of second fluid pipes, and mounted to face the side of the heat exchanger core; And
And a second fluid inlet formed in one of the second fluid header tanks of the pair of second fluid header tanks, into which the second fluid is introduced, and the second fluid outlet from which the second fluid is discharged.
The heat exchanger core portion is detachably coupled to the pair of second fluid header tanks,
In the pair of second fluid header tanks, a first coupling part including a plurality of first fastening holes to which first fasteners are fastened is formed,
The heat exchanger core part includes a plurality of second fastening holes to which the first fastener fastened to the fastening hole of the first coupling part is detachably attached to the pair of second fluid header tanks. 2 joining portions are formed,
The fastening strength of the first fastener, the first coupling part, and the second coupling part is lower than the bursting strength of the heat exchanger core part, and when freezing occurs inside the heat exchanger core part, the heat exchanger core part is damaged before the heat exchanger core part is damaged. And the pair of second fluid header tanks is separated from the water-cooled heat exchanger. delete The method of claim 1,
Wherein the first fluid is a refrigerant and the second fluid is a cooling water. The method of claim 1,
The pair of second fluid header tank is a water-cooled heat exchanger, characterized in that the plastic injection molding. delete The method of claim 1,
The first and second coupling parts are water-cooled heat exchanger, characterized in that the O-ring insertion groove is formed is inserted into the O-ring.

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