KR101082471B1 - Heat exchanger - Google Patents

Abstract

The present invention relates to a heat exchanger, and more particularly, by appropriately adjusting the amount of the heat exchange medium supplied to the tube to adjust the heat exchange capacity according to the heating and cooling load, as well as to distribute the heat exchange medium evenly to the heat exchanger to the tube side The present invention relates to a heat exchanger that maintains a constant amount and speed of a flowing heat exchange medium to improve smooth temperature control and a difference in left and right temperatures.

Accordingly, the present invention is a tube 105, the end of which is fixed to the header 101 is disposed; Media distribution means (110) installed in the header (101) for supplying heat exchange media to a particular tube (105); It is installed on the upper portion of the media distribution means 110, the distribution unit 115a having a plurality of distribution passages 190 formed therein, and formed on the upper end of the distribution unit 115a, the media supply pipe 120 on one side thereof. And a tank 115 including a control unit 115b formed with a medium return pipe 125 and a bypass passage 116a having a reduced passage cross-sectional area at one side of the inner passage 116; It is characterized in that it comprises a medium adjusting means 130 is installed in the adjusting unit 115b of the tank 115 and operated in accordance with a control signal.

Heat exchanger, header, tank, tube, return pipe, valve body, distribution channel, supply hole, bypass passage

Description

Heat exchanger {HEAT EXCHANGER}

1 is a perspective view showing a conventional heat exchanger,

2 is a front view showing another conventional heat exchanger,

3 is a perspective view of main parts in FIG. 2;

4 is a perspective view of a heat exchanger according to the present invention;

5 is an exploded perspective view showing a heat exchanger according to the present invention;

6 is a cross-sectional view showing a heat exchanger according to the present invention;

7 is a plan view showing the media distribution means in the heat exchanger according to the present invention;

8 is a perspective view showing a disassembled state of the upper tank and the media distribution means in the heat exchanger according to the present invention;

9 is a cross-sectional view showing a state in which a media distribution means and an upper tank are coupled to an upper header in a heat exchanger according to the present invention;

10 to 12 are views showing the operating state of the heat exchanger according to the present invention.

<Description of the code used in the main part of the drawing>

100: heat exchanger 101: upper header

103: lower header 105: tube                 

110: medium distribution means 115: upper tank

115a: distributor 115b: adjuster

116: internal passage 116a: bypass passage

120: medium supply pipe 125: medium recovery pipe

130: medium adjusting means 135: lower tank

140: return pipe 145: supply hole

150: guide 155: recovery hole

160: partition 165: guide

170: guide hole 175: recovery unit

180: recovery guide hole 185: bypass hole

190: distribution passage 195: valve body

200: auxiliary valve body 205: link

210: rotating body 215: elastic member

220: cover 225: rotating aid

230: sealing member

The present invention relates to a heat exchanger, and more particularly, by appropriately adjusting the amount of the heat exchange medium supplied to the tube to adjust the heat exchange capacity according to the heating and cooling load, as well as to distribute the heat exchange medium evenly to the heat exchanger to the tube side The present invention relates to a heat exchanger that maintains a constant amount and speed of a flowing heat exchange medium to improve smooth temperature control and a difference in left and right temperatures.

As is generally known, an air conditioner includes a cooling system and a heating system. The cooling system is a process in which a heat exchange medium discharged by driving a compressor is circulated back to a compressor through a condenser, a receiver dryer, an expansion valve, and an evaporator. It is configured to cool the interior of the vehicle by heat exchange by the evaporator through, the heating system is configured to heat the interior by introducing heat exchange medium (engine coolant) to the heater core.

The condenser, the evaporator, the heater core, and the like, which heat exchange the heat exchange medium, are heat exchangers, and the heat exchanger receives the heat exchange medium, exchanges heat at an appropriate temperature, and then circulates the heat exchange medium.

As shown in FIG. 1, the conventional heat exchanger includes a plurality of tubes 5 having both ends fixed to upper and lower headers 1 and 3 and spaced apart from each other by a predetermined interval, and the upper and lower headers 1 and 3, respectively. Upper and lower tanks 7 and 9 are coupled to form passages communicating with the ends of the respective tubes 5, and heat dissipation fins 11 are provided between the tubes 5 to increase the heat dissipation surface area.

The conventional heat exchanger configured as described above has one side in which a heat exchange medium supplied to a passage formed by the upper tank 7 and the upper header 1 is partitioned by a baffle while being mounted in an air conditioner, in particular an automobile air conditioner. After performing heat exchange with the air around the heat exchanger while passing through the tubes (5), U-turn in the passage formed by the lower tank (9) and the lower header (3), this time passing through the other tubes (5) again The heat exchange is performed and discharged through a passage formed by the upper tank 7 and the upper header 1.

As a conventional heat exchanger having a heat exchange as described above is provided with a heat exchange medium (cooling water of an automobile) regardless of a heating or cooling load, an additional control means is required to arbitrarily adjust the heat exchange capacity according to the heating or cooling load. For example, in the case of a heat exchanger used as a heater core of an automobile, in order to control the heat exchange capacity of the heat exchanger, a method of controlling the air flow through the heat exchanger by adjusting the number of revolutions of the blower or installing a door in front of the heat exchanger come. As described above, controlling the heat exchange capacity of the heat exchanger by controlling the air volume requires a separate device, so there is a problem in that no reliable control is performed.

Applicants have proposed as shown in Figures 2 and 3 to solve the above problems, the upper and lower headers (1, 3) is fixed at both ends and the tube (5) arranged at equal intervals, and the upper Split supply means (13) connected to the header (1) for supplying heat exchange medium to a specific tube (5), and a lower tank (9) connected to the lower header (3) and in communication with the end of each tube (5). (See Korea Patent Publication No. 170234)

The splitter supply means 13 includes a plurality of connection passages 15 communicating with an upper end of each tube 5 coupled to the upper header 1, and an inlet side of the connection passage 15 is within a predetermined angle range. A main body 17 having a cylindrical heat exchange medium dividing unit 19 formed therein, at least one heat exchange medium supply pipe 21 installed to communicate with the heat exchange medium dividing unit 19 formed on the main body 17, Rotating member rotatably installed in the heat exchange medium dividing unit 19 and a blocking feather 27 for selectively blocking the inlet of the connection passage 15 communicating with the heat exchange medium dividing unit 19 is provided on the rotating shaft 25. And a cover member 29 for supporting the rotary shaft 25 and for blocking the heat exchange medium dividing unit 19.

In order to perform heat exchange with the heat exchange medium using the heat exchanger in the above state, first, the heat transfer medium is supplied through the heat exchange medium supply pipe 21 and the rotating member rotatably installed in the heat exchange medium divider 19 ( 23 is rotated according to the load applied to the heat exchanger, and as the rotational member 23 rotates, the blocking feather 27 selectively opens and closes the inlet of the connecting passage 15 to heat exchange the tube 5. Either the medium is supplied or the heat exchange medium is supplied to the whole tube 5.

When the inlet of the connecting passage 15 is formed on both sides, the blocking feathers 27 provided on both sides of the rotating member 23 open the ends of each tube 5 at the same time to exchange heat with some of the tubes 5. The medium can be supplied, and the heat exchange capacity of the heat exchanger can be arbitrarily adjusted because the supply amount of the heat exchange medium can be adjusted by the rotation of the rotating member 23.

As described above, the heat exchange medium can be selectively flowed through each tube 5 of the heat exchanger, and thus its performance can be arbitrarily adjusted to easily cope with heating or cooling loads.

However, although the heat exchanger has an advantage of selectively adjusting the amount of heat exchange medium, the heat exchange medium guided by the blocking feather 27 of the rotating member 23 is biased in the tube 5 column on one side of the heat exchanger. Not only was the mixing performance of the heat exchange medium deteriorated, but there was a problem that severe left and right temperature differences of the heat exchanger occurred.

An object of the present invention for solving the above problems is to adjust the amount of heat exchange medium supplied to the tube of the heat exchanger appropriately to adjust the heat exchange capacity according to the heating and cooling load and to distribute the heat exchange medium evenly to the heat exchanger It is to provide a heat exchanger that maintains a constant amount and speed of the heat exchange medium flowing to the tube side and smooth temperature control and improved left and right temperature difference.

In order to achieve the above object, the present invention is a tube one end fixed to the header is disposed; Media distribution means installed in the header to supply heat exchange media to a specific tube; A distribution part coupled to the header while disposed above the media distribution means, and having a plurality of distribution flow paths formed therein, and formed at an upper end of the distribution part to form a media supply pipe and a media recovery pipe on one side thereof, One side of the tank including a control unit formed with a bypass passage of the passage cross-sectional area is reduced; A guide part formed to extend an inner passage of the adjusting part and communicating with the medium supply pipe; A plurality of guide holes formed in the guide part and supplying a heat exchange medium introduced into the guide part to the medium distribution means; A valve body installed in the guide part of the control part and opening and closing the guide hole according to a control signal to adjust the amount of heat exchange medium, and connected to the valve body through a link, and the bypass passage formed on one side of the guide part. And a medium adjusting means comprising an auxiliary valve body for opening and closing the valve to adjust the bypass flow rate of the heat exchange medium introduced into the guide part.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is a perspective view showing a heat exchanger according to the present invention, Figure 5 is an exploded perspective view showing a heat exchanger according to the present invention, Figure 6 is a cross-sectional view showing a heat exchanger according to the present invention, Figure 7 is a heat exchanger according to the present invention Figure 8 is a plan view showing a media distribution means, Figure 8 is a perspective view showing a disassembled state of the upper tank and the media distribution means in the heat exchanger according to the invention, Figure 9 is a media distribution means in the upper header in the heat exchanger according to the invention And a cross-sectional view illustrating a state in which the upper tank is coupled, and FIGS. 10 to 12 are views illustrating an operating state of the heat exchanger according to the present invention.

As shown, the heat exchanger 100 according to the present invention includes a tube 105 for fixing both ends of the upper and lower headers 101 and 103 and arranged at equal intervals to move the heat exchange medium, and the upper header 101. Media distribution means 110 for supplying the heat exchange medium to a specific tube 105 or the entire tube 105, the distribution unit is installed on the upper portion of the media distribution means 110 and the distribution passage 190 is formed ( 115a) and an adjusting unit 115b having a medium supply pipe 120 and a medium recovery pipe 125 formed therein, the upper tank 115 for supplying and recovering heat exchange media, and installed inside the upper tank 115. And media adjusting means 130 for specifying the supply amount of the heat exchange medium to the tube 105 side while being automatically operated according to the control signal, and coupled to the lower header 103 to communicate with the end of each tube 105, To move (return) the upper tank 115 Through the turned pipe 140 consists of a lower tank 135 which is connected to the upper tank 115.

First, the medium distribution means 110 is formed with a plurality of supply holes 145 in a proper position to supply the heat exchange medium to each tube 105 without a movement resistance, the upper side is formed in the upper tank 115 A guide guide 150 is formed to seal the open lower end of the distribution channel 190 and guide the heat exchange medium flowing along the distribution channel 190 to each of the supply holes 145, and at one side of the return pipe. The recovery hole 155 communicating with the return pipe 140 is formed so that the heat exchange medium flowing through the 140 flows toward the inner passage 116 of the upper tank 115.

Here, the media distribution means 110 is formed of a rubber (Rubber) material or a synthetic resin material, the upper tank of the heat exchanger 100 to minimize the heat transfer to the tube 105 side when the heat exchange medium is bypassed ( It is provided between the 115 and the upper header 101.

In addition, partition walls 160 are formed between supply holes 145 formed in the media distribution means 110, respectively.

The partition wall 160 allows the heat exchange medium supplied through the supply hole 145 to be supplied to the corresponding tube 105 partitioned by the partition wall 160.

Meanwhile, when the position of the distribution channel 190 of the upper tank 115 is changed along with the guide guide 150 and the partition wall 160 of the media distribution means 110, the flows to the specific tubes 105 partitioned. The number of flow paths of the heat exchange medium can be arbitrarily adjusted to improve temperature linearity and to vary.

In addition, the upper tank 115 has a distribution unit 115a having a plurality of distribution passages 190 formed therein, and a heat exchanger integrally formed at an upper side of the distribution unit 115a and supplied to each distribution passage 190. And an adjuster 115b for adjusting or bypassing the amount of media.

The distribution passage 190 formed in the distribution unit 115a is formed at an appropriate interval so as to correspond to the guide guide 150 and the supply hole 145 of the media distribution means 110, the tip of which is described below. Each guide hole 170 of the guide portion 165 to be communicated with the end is formed so as to communicate with the supply hole 145 is extended to the position of the respective supply holes 145.

The distribution channel 190 forms a sealed channel when combined with the guide guide 150, so that the heat exchange medium supplied through the guide hole 170 of the guide portion 165 is supplied to each of the media distribution means 110. The hole 145 will be able to move stably.

The control unit 115b has a passage 116 formed therein, and at one side, a medium supply pipe 120 and a medium recovery pipe 125 are formed at predetermined intervals.

In addition, the adjusting portion 115b is formed with a substantially circular guide portion 165 extending the inner passage 116 in communication with the medium supply pipe 120, the bottom of the guide portion 165, the respective distribution passages A plurality of guide holes 170 are formed at equal intervals in the circumferential direction so as to supply the heat exchange medium to the 190.

In addition, the heat recovery medium and the heat exchange medium that is moved through the return pipe 140 and the recovery hole 155 and the recovery hole 155 of the media distribution means 110 so as to be recovered to the inner passage 116 of the control unit 115b. The recovery part 175 which communicates is formed.

In addition, a bypass passage 116a having a reduced passage cross-sectional area is formed at one side of the inner passage 116 of the adjusting unit 115b.

Here, the bypass passage 116a is preferably formed in a tapered shape and is formed between the medium supply pipe 120 and the medium recovery pipe 125.

In addition, a bypass hole 185 is formed in the bypass passage 116a on one side with the medium return pipe 125 interposed on the inner passage 116 of the adjusting unit 115b, and the inner passage 116 on the other side. The recovery guide hole 180 is formed on the.

Here, the bypass hole 185 is formed at a position where the passage cross-sectional area is the smallest in the bypass passage 116a to directly bypass the heat exchange medium supplied through the medium supply pipe 120 to the medium recovery pipe 125. The recovery guide hole 180 is formed between the recovery part 175 of the upper tank 115 and the medium recovery pipe 125 to return the heat exchange medium through the return pipe 140 to the medium recovery pipe 125. To be discharged through

As such, the bypass passage 116a formed in the tapered shape has a passage cross-sectional area gradually increasing toward the traveling direction of the heat exchange medium bypassed from the position where the bypass hole 185 is formed, so that the medium adjusting means 130 Bypass flow rate can be changed for each temperature control position by adjustment.

That is, when the auxiliary valve body 200 to be described below is gradually opened in a state in which the bypass hole 185 is blocked, the gap between the auxiliary valve body 200 and the bypass passage 116a is gradually increased while the bypass flow rate is increased. It will also gradually increase.

As such, the heat exchange medium bypassed through the bypass passage 116a by the intermittent control of the auxiliary valve body 200 can be changed for each temperature control position of the medium adjusting means 130 without a sudden flow rate change, so that smooth temperature control is possible. The flow rate and speed flowing to the tube 105 side are kept constant to improve the left and right temperature difference.

In addition, even if the bypass hole 185 is initially opened to some extent, the flow rate to be bypassed is small so that the flow rate flowing to the tube 105 is sufficiently secured, thereby improving heat exchange performance.                     

In addition, the medium adjusting means 130 is installed in the guide portion 165 of the upper tank 115, the valve body 195 for opening and closing (partly or whole) the inlet of the guide hole 170 arbitrarily, and the valve body An auxiliary valve body connected to the linkage 205 through the link 205 and selectively opening and closing the recovery induction hole 180 and the bypass hole 185 while moving forward and backward simultaneously with the rotation of the valve body 195 ( 200).

The valve body 195 is rotated while being automatically adjusted by a control switch (not shown), and a polygonal rotary body 210 is installed in the valve body 195 via an elastic member 215. A cover 220 for rotatably supporting the upper side of the rotating body 210 and sealing the control unit 115b of the upper tank 115 to be blocked from the outside is installed.

In addition, the upper portion of the rotating body 210 protruding out of the cover 220 is coupled to the rotating aid 225 connected to the actuator (not shown).

Here, the valve body 195 is preferably made of a Teflon material or a urethane material to improve the heat resistance and the sealing resistance.

In addition, the elastic member 215 is composed of a spring or the like so that the valve body 195 can be in close contact with the guide hole 170, the sealing member 230 between the rotating body 210 and the cover 220 It is installed to maintain the sealing property between the cover 220 and the upper tank 115.

In addition, when the valve body 195 is formed of a synthetic resin material may be coated with a rubber material on the outside thereof, and when the valve body 195 is treated step by step with a synthetic resin and a rubber material, the guide hole ( The sealing property between the 170 and the valve body 195 is improved.

On the other hand, the return pipe 140 is preferably formed in a slot (slot) or a rectangular parallelepiped shape in order to improve the heat transfer efficiency.

As described above, the heat exchanger according to the present invention combines the upper and lower headers 101 and 103 at both ends of the plurality of tubes 105 and the return pipe 140, respectively, and the media distribution means 110 to the upper header 101. And an upper tank 115 on which the medium adjusting means 130 is mounted, and a lower tank 135 is installed on the lower header 103.

Therefore, when the heat exchange medium is supplied to the medium supply pipe 120 of the upper tank 115, the heat exchange medium is bypassed directly to the medium recovery pipe 125 through the bypass passage 116a according to the adjustment of the medium adjusting means 130. Passed through, or flows along the plurality of tubes 105, the heat exchange with the outside air is returned through the return pipe 140 to be discharged to the medium recovery pipe (125). Hereinafter, the circulation process of the heat exchange medium will be described in more detail.

When the rotational auxiliary body 225 is rotated at a specific angle through a control switch in the course of circulating the heat exchange medium, the guide hole 170 of some of the guide holes 170 is opened by the rotation of the valve body 195. The open guide hole 170 communicates with the distribution channel 190 and the supply hole 145, and the supply hole 145 communicates with a specific tube 105 by both side partitions 160.

Accordingly, the heat exchange medium supplied through the medium supply pipe 120 flows along a specific tube 105 communicating with the guide hole 170 opened by the rotation of the valve body 195, thereby actively performing heat exchange with the outside air. After that, the lower tank 135 is moved.

The heat exchange medium moved to the lower tank 135 moves to the upper tank 115 through the return pipe 140, and the heat exchange medium moved to the upper tank 115 passes through the recovery induction hole 180. It is discharged to the recovery pipe (125).

As described above, when the valve body 195 rotates at a specific angle, the auxiliary valve body 200 operated by the link 205 does not completely block the recovery induction hole 180 or the bypass hole 185. Accordingly, when the heat exchange medium returned through the return pipe 140 moves to the medium recovery pipe 125, a part of the heat exchange medium supplied from the guide part 165 to the guide hole 170 passes through the bypass hole 185. It flows to the medium recovery pipe 125.

That is, the more the guide hole 170 is opened by the rotation of the valve body 195, the auxiliary valve body 200 moves toward the bypass hole 185 and bypasses through the bypass hole 185. As the flow rate decreases, and as the guide hole 170 is opened less, the auxiliary valve body 200 moves toward the recovery induction hole 180 and the bypass flow rate increases through the bypass hole 185.

In addition, when the rotating auxiliary body 225 is completely rotated, the entire guide hole 170 is opened by the rotation of the valve body 195, and the guide hole 170 is the distribution passage 190 and the supply hole. Communication with the entire tube 105 is through 145.

Therefore, the heat exchange medium flows along the entire tube 105 through the distribution passage 190 and the supply hole 145 through the guide hole 170 which is entirely open, and performs active heat exchange with the outside air, and then the lower tank. Go to (135).                     

The heat exchange medium moved to the lower tank 135 returns to the upper tank 115 through the return pipe 140, and the heat exchange medium returned to the upper tank 115 is discharged to the medium recovery pipe 125. will be.

When the valve body 195 is completely rotated as described above and the entire guide hole 170 is opened, the auxiliary valve body 200 is supplied through the medium supply pipe 120 by completely blocking the bypass hole 185. All of the heat exchange medium is flowed to the tube 105 side.

On the contrary, when the valve body 195 rotates to block the entire guide hole 170, the auxiliary valve body 200 completely blocks the recovery induction hole 180 to supply the heat exchange medium supplied through the medium supply pipe 120. After all flows to the bypass passage (116a) side is immediately discharged through the medium recovery pipe (125).

Meanwhile, a guide part 165 is formed at the center of the heat exchanger 100, and the distribution passage 190, the guide guide 150, and the supply hole 145 are diffused in both directions around the guide part 165. In this case, the heat exchange medium can be arbitrarily adjusted to the respective tubes 105 during the operation of the valve body 195, thereby improving the mixing performance.

In addition, since the movement path of the heat exchange medium can be freely specified, the temperature linearity is stably adjusted, and each tube is formed by forming the distribution channel 190, the guide guide 150, and the supply hole 145 in various forms. The supply of the heat exchange medium to 105 can be set freely, and the supply amount of the heat exchange medium can be preferentially identified by forming the partition wall 160 at an appropriate position based on the supply hole 145.

 As described above, the present invention, by supplying the heat exchange medium to a specific tube or the entire tube by the operation of the medium adjusting means and by appropriately adjusting the amount of the heat exchange medium, the heat exchange capacity can be easily adjusted according to the heating and cooling load, heat exchange medium Is distributed and circulated through a specific tube or the whole tube without resistance to movement, thereby improving mixing performance and overall heat exchange performance.

In addition, by forming the medium distribution means made of a rubber material or a synthetic resin material, heat transfer between the heat exchange medium flowing to the tube side and the heat exchange medium bypassed is minimized, and the respective distribution passages, guide guides, and supply holes are centered on the guide part. It is formed in such a way that it spreads in both directions, it is possible to constantly supply the heat exchange medium to each tube.

In addition, by forming a tapered bypass passage having a reduced passage cross-sectional area on the inner passage of the upper tank, the amount of heat exchange medium bypassed is different for each temperature control position of the medium adjusting means, so that smooth temperature control is possible. The flow rate and speed flowing to the side are kept constant to improve the left and right temperature difference.

In addition, even if the bypass hole is initially opened to some extent, the flow rate to be bypassed is small so that the flow rate flowing to the tube side can be sufficiently secured, thereby improving heat exchange performance and flow rate control performance.

Claims (16)

A tube 105 having one end fixed to the header 101; Media distribution means (110) installed in the header (101) for supplying heat exchange media to a particular tube (105); It is disposed on the media distribution means 110 and coupled to the header 101, and is formed on the distribution unit 115a and a plurality of distribution passages 190 formed therein, and formed on top of the distribution unit 115a. A tank including a control unit 115b having a medium supply pipe 120 and a medium recovery pipe 125 formed on one side thereof, and a bypass passage 116a having a reduced passage cross-sectional area formed on one side of the inner passage 116 ( 115); A guide part 165 formed to extend the inner passage 116 of the adjusting part 115b and communicating with the medium supply pipe 120; A plurality of guide holes 170 formed in the guide part 165 and supplying the heat exchange medium introduced into the guide part 165 to the medium distribution means 110; The valve body 195 and the valve body 195 which are installed in the guide portion 165 of the adjusting unit 115b and adjust the amount of heat exchange medium by opening and closing the guide hole 170 according to a control signal. The auxiliary valve body connected to the link 205 and controlling the bypass flow rate of the heat exchange medium introduced into the guide part 165 by opening and closing the bypass path 116a formed at one side of the guide part 165. Medium adjusting means (130) consisting of (200); Heat exchanger comprising a. The method of claim 1, A header 103 is coupled to the other end of the tube 105, and the header 103 is connected to the other end of the tube 105 and connected to the tank 115 through a return pipe 140. Tank 135 is combined, The medium distributing means 110 has a plurality of supply holes 145 are formed to supply the heat exchange medium to each tube 105, the upper side seals the open bottom of each of the distribution passages 190 and at the same time A guide guide 150 is formed to guide the heat exchange medium flowing along the distribution channel 190 to the supply holes 145, and a recovery hole 155 is formed at one side to communicate with the return pipe 140. Heat exchanger, characterized in that made. The method of claim 1, The medium distribution means 110 is a heat exchanger, characterized in that made of a rubber material. The method of claim 1, The medium distribution means 110 is a heat exchanger, characterized in that made of a synthetic resin material. The method of claim 2, Heat exchanger, characterized in that the partition wall 160 is formed between each supply hole (145) of the media distribution means (110). The method of claim 2, Heat exchanger, characterized in that the recovery unit 175 is formed on one side of the tank 115 to communicate with the return pipe (140). The method of claim 1, The bypass passage (116a) is a heat exchanger, characterized in that formed in a tapered shape between the medium supply pipe (120) and the medium return pipe (125). The method of claim 1, A bypass hole 185 is formed in the bypass passage 116a on one side with the medium return pipe 125 therebetween, and a recovery induction hole 180 is formed on the inner passage 116 of the other side. Heat exchanger. The method of claim 6, Each of the distribution passages 190 is formed at appropriate intervals to correspond to the guide guide 150 and the supply hole 145 of the media distribution means 110, and the tip of each of the distribution passages 190 of the guide portion 165. Heat exchanger in communication with the end is formed extending to the position of each supply hole (145). delete The method of claim 1, The rotor 210 is installed on the valve body 195 via the elastic member 215 to support the upper side of the rotor 210 and to seal the control unit 115b of the tank 115. The cover 220 is installed, the heat exchanger, characterized in that the upper portion of the rotating body 210 protruding to the outside of the cover 220 is coupled to the rotary auxiliary body 225 connected to the actuator. The method of claim 1, The valve body 195 is a heat exchanger, characterized in that formed of Teflon material. The method of claim 1, The valve body 195 is a heat exchanger, characterized in that formed of a urethane material. The method of claim 1, The valve body 195 is formed of a synthetic resin and heat-exchanging, characterized in that the outer surface is coated with a rubber material. The method of claim 11, The elastic member (215) is characterized in that the valve body (195) is in close contact with the guide hole 170 side. The method of claim 11, Heat exchanger, characterized in that the sealing member 230 is installed between the rotating body 210 and the cover 220.

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