KR20140000938A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
KR20140000938A
KR20140000938A KR1020120068751A KR20120068751A KR20140000938A KR 20140000938 A KR20140000938 A KR 20140000938A KR 1020120068751 A KR1020120068751 A KR 1020120068751A KR 20120068751 A KR20120068751 A KR 20120068751A KR 20140000938 A KR20140000938 A KR 20140000938A
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KR
South Korea
Prior art keywords
shell
fluid
baffle
heat exchanger
tube
Prior art date
Application number
KR1020120068751A
Other languages
Korean (ko)
Inventor
황준현
최홍석
조창환
Original Assignee
엘지전자 주식회사
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Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020120068751A priority Critical patent/KR20140000938A/en
Publication of KR20140000938A publication Critical patent/KR20140000938A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements

Abstract

The air conditioner of the present invention is a shell; A first fluid inlet pipe for guiding the first fluid into the shell; A tube through which the second fluid that is heat-exchanged with the first fluid passes and is wound in a plurality of spirals and has a gap formed between the turns; A first fluid discharge pipe through which the first fluid is guided out of the shell; A baffle into which a portion is inserted into the gap; A baffle holding member disposed in the shell and holding the baffle, wherein the baffle has a fixing portion fixed with the baffle fixing member, the fixing portion being located in a space between the shell and the tube, the first fluid through which the baffle holding member passes through the gap. It is possible to stably support the tube with the baffle without disturbing the flow of the, and has the advantage of minimizing the vibration of the tube.

Description

Heat exchanger

The present invention relates to a heat exchanger in which a tube is installed in a shell, and more particularly to a heat exchanger in which a tube is wound in a spiral multiple times.

Generally, a heat exchanger is a device for transferring heat between two fluids and is widely used for cooling, heating, hot water supply, and the like.

The heat exchanger functions as a waste heat recovering heat exchanger for recovering the waste heat or as a cooler for cooling the hot fluid or as a condenser for condensing the vapor or as an evaporator for evaporating the coolant fluid .

Various types of heat exchangers may be used, including a tube through which the first fluid passes, a finned tube heat exchanger with the fin provided on the tube, a shell through which the first fluid passes, and a second fluid through which heat exchange with the first fluid passes A dual tube heat exchanger having an inner tube through which the first fluid passes and a second fluid that undergoes heat exchange with the first fluid and surrounds the inner tube and has an outer tube; And a plate heat exchanger in which the fluid passes through the heat transfer plate.

The heat exchanger may have a straight tube-shaped tube or a tube of spirally wound bundles disposed within the shell, and the second fluid passing through the tube may pass along with the first fluid while passing through the shell after the first fluid enters the shell. Can be heat exchanged.

The heat exchanger may have a reflector installed inside the shell to adjust the airflow of the first fluid, and the heat transfer amount of the first fluid and the second fluid may be increased.

KR 10-0979333 B1 (2010.08.25)

The heat exchanger according to the prior art has a structure for guiding the flow of a fluid by inserting a stainless steel sheet and holding a deflector in the stainless steel sheet between the adjacent adjacent turns of the tube, and the deflector is provided in an inner region of the tube to prevent the axial flow of the fluid. Because of its location, there is a problem that it is difficult to guide the flow between the tube and the casing.

The heat exchanger of the present invention for solving the above problems is a shell; A first fluid inlet pipe guiding a first fluid into the shell; A tube through which the second fluid that is heat-exchanged with the first fluid passes and is wound in a plurality of spirals and has a gap formed between the turns; A first fluid discharge pipe through which the first fluid is guided out of the shell; A baffle into which a portion is inserted into the gap; And a baffle fixing member disposed in the shell to fix the baffle, wherein the baffle has a fixing portion fixed to the baffle fixing member, and the fixing portion is located in a space between the shell and the tube.

The baffles may be arranged in plurality spaced apart.

 The tube may have a vertical center axis, and the plurality of baffles may be disposed orthogonal to the vertical center axis.

The plurality of baffles may be disposed different from each other in height from the bottom of the shell.

The plurality of baffles may be disposed to have a phase difference inside the shell.

The plurality of baffles may be disposed to face partly in the vertical direction.

The plurality of baffles may be arranged to form a spiral swirling flow of the first fluid inside the shell.

The baffle may be spaced apart from the first fluid discharge pipe in the radial direction of the shell.

The baffle may have a radial length of the shell shorter than a separation distance between the shell and the first fluid discharge pipe.

The baffle fixing member may be disposed perpendicular to the inside of the shell.

The baffle fixing member may be located between the tube and the shell.

The baffle fixing member may fix a plurality of singular baffles, and the plurality of baffle fixing members may be supported by the baffle fixing member holder.

The plurality of baffle fixing members may be screwed to the shell, and the baffle fixing member holder may be supported by being in contact with the shell.

The shell may be formed with a position fixing portion for fixing the position of the baffle fixing member holder.

The shell may include a case elongated in a vertical direction, a first cover positioned above the case, and a second cover positioned below the case, and the baffle fixing member may be coupled to the second cover. Can be.

The present invention has the advantage that the discharge fixing member can stably support the tube with the baffle without disturbing the flow of the flow of the first fluid through the gap, and can minimize the vibration of the tube.

 In addition, the baffle combines the function of guiding the fluid and the function of fixing the tube, which has a simple structure.

In addition, the separation and installation of the baffle fixing member and the baffle is simple, there is an advantage that can be easy to clean the heat exchanger.

1 is a block diagram of an air conditioner to which an embodiment of a heat exchanger according to the present invention is applied;
2 is a side view showing an embodiment of a heat exchanger according to the present invention;
3 is a bottom view of the shell shown in FIG.
4 is a view showing the inside of an embodiment of a heat exchanger according to the present invention;
FIG. 5 is a plan view showing the inside of a heat exchanger according to an embodiment of the present invention,
6 is a plan view showing a baffle, a first fluid inlet tube and a first fluid outlet tube of one embodiment of a heat exchanger according to the present invention;
7 is a schematic perspective view of a first fluid flow of one embodiment of a heat exchanger according to the present invention.

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

1 is a configuration diagram of an air conditioner to which an embodiment of a heat exchanger according to the present invention is applied.

The air conditioner shown in Fig. 1 may include a compressor 2, a first heat exchanger 4, an expansion mechanism 6, and a second heat exchanger 8. [ The first heat exchanger 4 may heat exchange the first fluid and the second fluid. The first fluid may function as a cooling fluid that absorbs the heat of the second fluid or as a heating fluid that heats the second fluid. The air conditioner includes a compressor (2) in which the second fluid is compressed, a first heat exchanger (4) in which the second fluid heat exchanges with the first fluid, an expansion mechanism (6) in which the second fluid is expanded, and a second fluid May comprise a second heat exchanger (8) which exchanges heat with air.

The second fluid can pass in the order of the compressor 2, the first heat exchanger 4, the expansion mechanism 6, and the second heat exchanger 8. That is, the second fluid compressed by the compressor 2 is configured to pass through the first heat exchanger 4, the expansion mechanism 6, and the second heat exchanger 8 sequentially, and then be recovered to the compressor 2. Can be. In this case, the first heat exchanger 4 may function as a condenser to condense the second fluid, the second heat exchanger 8 may function as an evaporator to evaporate the second fluid, and the first fluid may be a compressor ( It can be a cooling water absorbing heat of the second fluid compressed in 2).

The second fluid can pass in the order of the compressor 2, the second heat exchanger 8, the expansion mechanism 6, and the first heat exchanger 4. That is, the second fluid compressed by the compressor 2 is configured to pass through the second heat exchanger 8, the expansion mechanism 6, and the first heat exchanger 4 sequentially, and then be recovered to the compressor 2. Can be. In this case, the second heat exchanger 8 may function as a condenser to condense the second fluid, the first heat exchanger 4 may function as an evaporator to evaporate the second fluid, and the first fluid may be the first fluid. It may be heated water that heats the second fluid passing through the heat exchanger 4.

The air conditioner includes a compressor (2) in which the second fluid is compressed, a first heat exchanger (4) in which the second fluid heat exchanges with the first fluid, an expansion mechanism (6) in which the second fluid is expanded, and a second fluid Includes a second heat exchanger (8) in which heat is exchanged with the indoor air, and a flow path switching valve for sending the second fluid compressed by the compressor (2) to the first heat exchanger (4) or the second heat exchanger (8). It is possible to further include). In the air conditioner, the second fluid compressed by the compressor 2 sequentially passes through the flow path switching valve, the first heat exchanger 4, the expansion mechanism 6, the second heat exchanger 8, and the flow path switching valve. And a first circulation circuit which is then returned to the compressor 2. In the air conditioner, the second fluid compressed by the compressor (2) is a flow path switching valve (not shown), a second heat exchanger (8), an expansion mechanism (6), a first heat exchanger (4) and a flow path switching valve. It is possible to have all of the second circulation circuits returned sequentially to the compressor 2 after passing through. The first circulation circuit may be a circuit during a cooling operation in which the room is cooled by the second heat exchanger 8, and the first heat exchanger 4 may function as a condenser for condensing the second fluid. The second heat exchanger 8 may function as an evaporator to evaporate the second fluid. The second circulation circuit may be a circuit during heating operation in which the room is heated by the second heat exchanger 8, and the second heat exchanger 8 may function as a condenser for condensing the second fluid. The first heat exchanger 4 may function as an evaporator to evaporate the second fluid.

 The first fluid may be composed of a liquid fluid such as water or an antifreeze liquid, and the second fluid may be composed of various refrigerants such as a freon-based refrigerant and a carbon dioxide refrigerant that are usually used in an air conditioner.

The compressor 2 may be configured with various compressors for compressing a second fluid as a refrigerant, and may be various compressors such as a rotary compressor, a scroll compressor, a screw compressor, and the like. The compressor (2) may be connected to the first heat exchanger (4) and the compressor outlet flow path (3).

The first heat exchanger (4) may be constituted by a shell tubular heat exchanger. The first heat exchanger 4 may include a shell through which a first fluid, such as water or antifreeze, passes, and a tube through which a second fluid, which is a refrigerant, passes. The first heat exchanger (4) may be connected to the expansion mechanism (6) and the first heat exchanger expansion device connection flow path (5). The first heat exchanger 4 will be described later in detail.

The expansion mechanism 6 may be a capillary tube or an electromagnetic expansion valve into which a second fluid, which is a refrigerant, is expanded. The expansion mechanism (6) may be connected to the second heat exchanger (8) and the expansion mechanism second heat exchanger connecting flow path (7).

The second heat exchanger 8 may be configured as a fin tube type heat exchanger or a coil type heat exchanger through which a second fluid, which is a refrigerant, passes. The second heat exchanger 8 may include a tube in which heat is exchanged with indoor air while a second fluid, which is a refrigerant, passes through. The second heat exchanger 8 may further include a fin that is a heat transfer member coupled to the tube. The second heat exchanger (8) can be connected to the compressor (2) and the compressor suction passage (9).

The air conditioner may include a heat treatment unit (10) connected to the first heat exchanger (4). The heat treatment unit 10 may be configured as a cooler for cooling the first fluid when the first heat exchanger 4 functions as a condenser for condensing the second fluid. The heat treatment unit 10 may be configured as a heater for heating the first fluid when the first heat exchanger 4 functions as an evaporator for evaporating the second fluid. When the heat treatment unit 10 is configured as a cooler, the heat treatment unit 10 may include a cooling tower for cooling the first fluid. The first fluid may be cooling water such as water or antifreeze, and the heat treatment unit 10 may be connected to the first heat exchanger 4 and the water pipes 12 and 14. The first heat exchanger 4 may be connected to the heat treatment unit 10 and the water discharge pipe 12, and the first fluid of the first heat exchanger 4 may be discharged to the heat treatment unit 10 through the water discharge pipe 12. Can be. The first heat exchanger 4 may be connected to the heat treatment unit 10 and the inlet pipe 14, and the first fluid of the heat treatment unit 10 is obtained through the inlet pipe 14 to the first heat exchanger 4. Can be. At least one of the heat treatment unit 10, the water discharge pipe 12, and the water supply pipe 14 may be provided with a circulation mechanism such as a pump for circulating the first fluid to the heat treatment unit 10 and the first heat exchanger 4. have.

The air conditioner may further include an indoor fan (16) for circulating air in the room to the second heat exchanger (8) and then discharging the air to the room again.

The compressor 2, the first heat exchanger 4, the expansion mechanism 6, the second heat exchanger 8, and the indoor fan 16 can be installed in one air conditioning unit, To the second heat exchanger (8), and then discharged back to the room through a duct or the like to cool or heat the room. The heat treatment unit 10 may be installed in addition to one air conditioning unit and may be connected to one air conditioning unit by water pipes 12 and 14. [

The compressor 2, the first heat exchanger 4, the expansion mechanism 6, the second heat exchanger 8 and the indoor fan 16 may be installed in a distributed manner in a plurality of air conditioning units I . The first heat exchanger 4 and the indoor fan 16 can be installed together in the indoor unit I and the compressor 2 and the first heat exchanger 4 can be installed together in the compression unit O Can be installed. The expansion mechanism (6) may be installed in at least one of the indoor unit (I) and the compression unit (O). The expansion mechanism (6) can be provided with one expansion mechanism in the indoor unit (I) or the compression unit (O). It is possible that a plurality of expansion mechanisms 6 may be provided, the first expansion mechanism may be installed in the indoor unit I, and the second expansion mechanism may be installed in the compression unit O. The first expansion mechanism may function as an outdoor expansion mechanism which is installed closer to the first heat exchanger (4) of the first heat exchanger (4) and the second heat exchanger (8). The second expansion mechanism can function as an indoor expansion mechanism that is installed closer to the first heat exchanger (4) and the second heat exchanger (8) of the second heat exchanger (8). The indoor unit I may be installed in a room to be cooled or heated. The compression unit (O) may be installed in a machine room, a basement or the like of a building or on the roof. The compression unit (O) can be connected to the heat treatment unit (10) by the water pipes (12) and (14).

 Hereinafter, the first heat exchanger 4 will be referred to as a heat exchanger.

Figure 2 is a side view of one embodiment of a heat exchanger according to the present invention, Figure 3 is a bottom view of the shell shown in FIG.

The heat exchanger (4) comprises a shell (20); A first fluid inlet pipe (30) for guiding the first fluid into the shell (20); A first fluid discharge pipe 40 through which the first fluid is guided out of the shell 20; And a tube 70 through which a second fluid that exchanges heat with the first fluid passes.

The shell 20 may have a space in which the tube 70 may be accommodated while the first fluid may flow therein. The shell 20 may include a case 21, a first cover 22 that blocks one end of the case 21, and a second cover 23 that blocks the other end of the case 21. The case 21 may be vertically disposed in the vertical direction. The first cover 22 may be a top cover positioned above the case 21. The second cover 23 may be a lower cover positioned below the case 21. The case 21 is not integrally formed with at least one of the first cover 22 and the second cover 23, and is manufactured separately from the first cover 22 and the second cover 23, and then the first cover ( 22) and the second cover 23. When the case 21, the first cover 22, and the second cover 23 are separately configured and combined, the case 21, the inner circumferential surface of the case 21, the bottom surface of the first cover 22, and the second cover 23 may be separated. The top surface can be easily painted. When the case 21 is integrally formed with one of the first cover 22 and the second cover 23, the painting fluid may not easily flow evenly through the entire inner wall of the case 21. On the other hand, when the case 21 is configured separately from the first cover 22 and the second cover 23, the painting fluid may be painted while flowing evenly through the entire inner wall of the case 21. The shell 20 is coated on the inner circumferential surface of the case 21, the bottom surface of the first cover 22, and the top surface of the second cover 23, respectively, and then the case 21, the first cover 22, and the second surface. The cover 23 may be coupled.

The case 21 includes a hollow cylinder 21a having a space formed therein, a first coupling portion 21b coupled to the first cover 22, and a second coupling portion 21c coupled to the second cover 23. ) May be included.

The hollow cylinder 21a may be formed in a hollow cylindrical shape.

The first coupling portion 21b may protrude in a flange shape at the upper end of the hollow cylinder 21a, and a fastening hole may be formed to be fastened by the first cover 22 and the fastening member 22a such as a bolt.

The second coupling part 21c may protrude in a flange shape at the lower end of the hollow cylinder 21a, and a fastening hole may be formed to be fastened by the second cover 23 and the fastening member 23a such as a bolt.

The first cover 22 may be formed of a plate body and may be formed in a disc shape. A fastening hole corresponding to the fastening hole of the first coupling part 21b is formed in the first cover 22, and may be coupled to the first coupling part 21b by a fastening member 22a such as a bolt.

 The second cover 23 may be formed of a plate body and may be formed in a disc shape. A fastening hole corresponding to the fastening hole of the second coupling part 21c is formed in the second cover 23, and may be coupled to the second coupling part 21c by a fastening member 23a such as a bolt.

The shell 20 may have a space formed between the case 21, the first cover 22, and the second cover 23, and the first fluid may flow into the space through the first fluid inlet pipe 30. Can be. The first fluid may be exchanged with the tube 70 while flowing in the space.

The shell 20 may be formed with a first fluid inlet tube through-hole 24 through which the first fluid inlet tube 30 passes. The shell 20 may have a first fluid discharge pipe through hole 25 through which the first fluid discharge pipe 40 passes. The shell 20 may have a tube through hole 26 through which the tube 70 penetrates. The number of tube through holes 26 may be the same as the number of tubes 70.

The first fluid inlet pipe 30 may pass through the shell 20 such that an outlet end of the first fluid from the first fluid discharge pipe 30 is located inside the shell 20. The first fluid introduced into the shell 20 through the first fluid inlet pipe 30 may be filled from the inner bottom of the shell 20. The first fluid inlet pipe 30 may be disposed such that an outlet end from which the first fluid comes out is located at an inner lower portion of the shell 20. The first fluid inlet pipe 30 may be connected to the inlet pipe 14 shown in FIG. 1 at a portion located outside the shell 20.

The first fluid discharge pipe 40 may pass through the shell 20 such that an inlet end through which the first fluid enters the first fluid discharge pipe 40 is located inside the shell 20. The first fluid discharge pipe 40 is not discharged through the first fluid discharge pipe 40, the first fluid located in the inner lower portion of the shell 20, the first fluid located in the upper inside of the shell 20 1 may be disposed to be discharged through the fluid discharge pipe (40). The first fluid discharge pipe 40 may be disposed such that an inlet end through which the first fluid enters is located above the inner side of the shell 20. The first fluid discharge pipe 40 may be connected to the water discharge pipe 12 shown in FIG. 1 at a portion located outside the shell 20.

The first fluid inlet pipe 30 and the first fluid discharge pipe 40 may be disposed to penetrate through one of the case 21, the first cover 22, and the second cover 23. The tube 70 may be disposed to penetrate through one of the case 21, the first cover 22, and the second cover 23. When the first fluid inlet pipe 30, the first fluid discharge pipe 40, and the tube 70 are disposed to penetrate through the second cover 23, cleaning of the heat exchanger 4 may be facilitated. The heat exchanger 4 has a first cover 22 having a case 21 in a state in which the first fluid inlet pipe 30, the first fluid discharge pipe 40, and the tube 70 are fixed to the second cover 23. The case 21 may be separated from the second cover 23. When the first cover 2 and the case 21 are separated and the first fluid inlet pipe 30, the first fluid discharge pipe 40, and the tube 70 are fixed to the second cover 23, the operator The heat exchanger 4 can be cleaned easily. In consideration of the cleanability of the heat exchanger (4), it is preferable that the first fluid inlet pipe (30), the first fluid discharge pipe (40) and the tube (70) are disposed to penetrate the second cover (23).

The heat exchanger 4 may comprise a pedestal 50 supporting the shell 20. The pedestal 50 may include a fastening portion 52 to which the shell 20 is fastened. The fastening part 52 may be formed in a plate shape and may be disposed horizontally. The shell 20 may be mounted on the fastening part 52, and may be coupled to the fastening part 52 and a fastening member 23a such as a bolt. The pedestal 50 may include a support for supporting the fastening part 52. The support portion may include a plurality of legs 57 and 58 that support the fastening portion 52. When the heat exchanger 4 is mounted on the fastening part 52, a part of the first fluid inlet pipe 30, a part of the first fluid discharge pipe 40, and a part of the tube 70 are connected to the fastening plate 52. It may be located on the lower side. In the heat exchanger 4, both the first fluid discharge pipe 30, the second fluid discharge pipe 40, and the tube 70 may extend below the shell 20.

Figure 4 is a view showing the inside of one embodiment of the heat exchanger according to the present invention, Figure 5 is a plan view showing the inside of one embodiment of the heat exchanger according to the present invention, Figure 6 is a heat exchanger of one embodiment according to the present invention A baffle, a first fluid inlet tube and a first fluid outlet tube are shown in plan view, and FIG. 7 is a schematic perspective view of a first fluid flow in one embodiment of a heat exchanger according to the present invention.

The tube 70 is wound helically a plurality of times and a gap 73 may be formed between the turns 71 and the turns 72. The tube 70 may be made of a spiral tube having a coil shape.

The tube 70 may include a helix tube portion 74 having a plurality of turns 71, 72. The tube 70 may be installed to have a plurality of turns 71 and 72 having a vertical central axis VX. The plurality of turns 71 and 72 may have the same distance L1 from the vertical central axis VX. The helix tube portion 74 may have at least 10 turns. The spiral tube portion 74 may be wound continuously in a clockwise direction or wound continuously in a counterclockwise direction. The plurality of turns 71 and 72 may be wound to be spaced apart in the vertical direction, and a gap 73 may be formed between each of the plurality of turns 71 and 72. The first fluid flows through the gap 73 in the space between the shell 20 and the spiral pipe portion 74 and flows into the space inside the spiral pipe portion 74, or passes through the gap 73 in the space inside the spiral pipe portion 74. It can flow to the space between the shell 20 and the spiral tube portion 74.

The tube 70 may include a straight pipe portion 75 extending from the spiral pipe portion 74 and formed in a straight pipe shape. The straight pipe portion 75 may be formed by bending at a turn located at the lowermost side of the spiral pipe portion 74. The straight pipe portion 75 may be formed by bending at a turn located at the uppermost side of the spiral pipe portion 74. The straight pipe portion 74 may be disposed parallel to the vertical central axis VX.

The number of tubes 70 may be installed in the shell 20, and as shown in FIG. 5, the plurality of tubes 70 may be installed in the shell 20 together.

When the number of tubes 70 is installed in the shell 20, the first straight pipe portion may be formed at one end of the spiral pipe portion 74 to guide the second fluid to the spiral pipe portion 74, and the spiral pipe portion 74 may be formed. A second straight pipe portion may be formed at the other end of the second fluid passing through the spiral pipe portion 74 to the outside of the shell 20.

When the plurality of tubes 70 are installed in the shell 20, the plurality of tubes 70A and 70B may be disposed to have the same vertical central axis VX. The tube 70 may be connected in series with a pair of tubes 70A and 70B having different distances from the vertical central axis VX. The tube 70 may be connected to the connection tube 70C by a pair of tubes 70A and 70B having different distances from the vertical central axis VX. The connection tube 70C may be formed in a U shape. The pair of tubes 70A, 70B and the connection tube 70C may constitute one heat transfer tube P. FIG. The second fluid is sequentially passed through the straight tube portion 75 and the spiral tube portion 74 of any one of the pair of tubes 70A and 70B, then flows to the connecting tube 70C, and then the pair After passing sequentially through the spiral tube portion 74 and the straight tube portion 75 of the other 70B of the tube 70A (70B) of the can be flow out of the shell 20. The second fluid is heat exchanged with the first fluid while passing through any one 70A of the pair of tubes 70A, 70B and then with the first fluid while passing through the connecting tube 70C, and thereafter the pair of tubes It is possible to heat exchange with the first fluid while passing through the other 70B of 70A and 70B. The tube 70 may be provided with a plurality of pairs of tubes 70A and 70B which are different in distance from the vertical central axis VX and connected in series.

When a plurality of tubes 70 are installed, the tube closest to the first fluid discharge pipe 40 may be in contact with the first fluid discharge pipe 40 and may be fixed to the first fluid discharge pipe 40, and the shell 20 may be fixed. The tube closest to the can be in contact with the shell 20. When a plurality of tubes 70 are installed, the innermost tube may be disposed to surround the first fluid discharge tube 40, may be in contact with the first fluid discharge tube 40, and the first fluid discharge tube 40 may be disposed. It can be fixed by). When a plurality of tubes 70 are installed, the tubes located at the outermost side may be spaced apart from the inner surface of the shell 20.

Heat exchanger 4 may include baffles 92, 94, 96 that are inserted into gap 73 between turns 71 and turn 72. Baffles 92, 94, 96 may be partly located between turn 71 and turn 72, and the remainder may be located in the space between shell 20 and tube 40. The baffles 92, 94 and 96 may function as deflectors to regulate the flow of the first fluid. The baffles 92, 94 and 96 may fix the tube 70 to minimize the shaking of the tube 70 by the flow or vibration of the first fluid. The baffles 92, 94, 96 may be in contact with at least one of the turns 71, 72. That is, the baffles 92, 94, 96 can function as a tube holder.

 A plurality of baffles 92, 94 and 96 may be installed. The plurality of baffles 92, 94, 96 may be spaced apart from the shell 20.

The plurality of baffles 92, 94, 96 may be disposed to be orthogonal to the vertical center axis VX. The plurality of baffles 92, 94, 96 may be disposed horizontally inside the shell 20.

 When the outlet end of the first fluid inlet pipe 30 is located at the inner bottom of the shell 20, and the inlet end of the first fluid outlet pipe 40 is located at the inner top of the shell 20, the first fluid inlet The first fluid introduced into the inner bottom of the shell 20 through the pipe 30 may be formed to flow upwardly. The first fluid may hit the baffles 92, 94 and 96 while flowing upward, and then the flow direction may be switched in a horizontal direction, in particular, a direction orthogonal to the vertical central axis VX. The first fluid inside the heat exchanger 4 flows in three dimensions by the position of each of the plurality of baffles 92, 94, 96 and the height difference between the plurality of baffles 92, 94, 96. Heat exchange with 70.

The plurality of baffles 92, 94, and 96 may have different heights H1, H2, and H3 from the bottom of the shell 20. Each time the first fluid encounters a plurality of baffles 92, 94, 96, the flow direction may be reversed. When the plurality of baffles 92, 94, 96 have different installation heights, The first fluid may be reversed in flow direction at multiple heights inside the shell 20.

The plurality of baffles 92, 94, 96 may be disposed to have a phase difference θ in the shell 20. The plurality of baffles 92, 94, 96 may be disposed with the same phase difference with each other, and some may be disposed with different phase differences. For example, when three plural baffles 92, 94 and 96 are installed, the centerline of each of the plural baffles 92, 94 and 96 is approximately 120 ° in the circumferential direction of the shell 20. It may have a phase difference of. As another example, when four plural baffles 92, 94, 96 are installed, the center lines of each of the plural baffles may have a phase difference of approximately 90 ° in the circumferential direction of the shell 20.

The plurality of baffles 92, 94, 96 may be disposed to face a portion in the vertical direction. The first fluid may collide with at least one of the plurality of baffles 92, 94, 96 while being raised, and ascend upwards without colliding with the plurality of baffles 92, 94, 96. The flow of fluid can be minimized.

A plurality of baffles 92, 94, 96 may be arranged to form a spiral swirl flow F of the first fluid within the shell 20. For example, the second baffle 94 may be disposed to have a phase difference of 120 ° counterclockwise with the first baffle 92 while having a higher installation height than the first baffle 92. The third baffle 96 may be disposed to have a phase difference of 240 ° in the counterclockwise direction with the first baffle 92 while having a height higher than that of the second baffle 94. Inside the shell 20, a counterclockwise helical swirl flow of the first fluid may be formed by the positions of the first baffle 92, the second baffle 94, and the third baffle 96. In another example, the second baffle 94 has a height higher than that of the first baffle 92 and has a phase difference of 120 ° in the clockwise direction with respect to the first baffle 92. The third baffle 96 may be disposed to have a phase difference of 240 ° in the clockwise direction with the first baffle 92 while having an installation height higher than that of the second baffle 94. Inside the shell 20, the clockwise helical swirl flow of the first fluid may be formed by the positions of the first baffle 92, the second baffle 94, and the third baffle 96. In the present invention, the positions of the plurality of baffles 92, 94 and 96 are not limited to the phase difference of 120 ° as described above, but various implementations such as 60 °, 90 °, 150 ° and the like are possible.

The baffles 92, 94 and 96 may be shaped in a plate shape. The baffles 92, 94 and 96 may be formed to have a rounded portion facing the inner surface of the shell 20. The baffles 92, 94, 96 may be spaced apart from the first fluid discharge pipe 40 in the radial direction of the shell 20. The baffles 92, 94, 96 may have a length L2 in the radial direction of the shell 20 shorter than the separation distance L3 between the shell 20 and the first fluid discharge pipe 40. The baffles 92, 94 and 96 do not interfere with the first fluid discharge pipe 40, and the position of the inlet end of the first fluid discharge pipe 40 is limited by the baffles 92, 94 and 96. May not be, and may be located proximate to the first cover 22. That is, when the baffles 92, 94, 96 are positioned above the first fluid discharge pipe 40 in the vertical direction, at least one of the baffles 92, 94, 96 and the first fluid discharge pipe 40 is provided. One location may be limited, provided that the baffles 92, 94, 96 are spaced apart from the first fluid discharge pipe 40 in the radial direction of the shell 20, the inlet end height of the first fluid discharge pipe 40. Can be set more freely, and the space utilization inside the shell 20 can be increased.

The heat exchanger 4 may further include a baffle fixing member 100 disposed in the shell 20 and fixing the baffles 92, 94, 96. The baffle fixing member 100 is capable of fixing a single number of baffles by a single baffle fixing member, and the plurality of baffle fixing members 100 may fix a single baffle. The baffle fixing member 100 may be formed in a rod shape.

In the heat exchanger 4, a single baffle may be fixed to a plurality of baffle fixing members 100, and a plurality of baffle fixing members 100 may be supported by a single number of baffle fixing member holders 102.

 A plurality of baffles 92, 94, and 96 may be provided with a fixing part 98 fixed to the baffle fixing member 100. The fixing part 98 may be a fixing hole or a fixing groove through which the baffle fixing member 100 penetrates and contacts the outer surface of the baffle fixing member 100. Fixing 98 may be located in the space between shell 20 and tube 70. The plurality of baffles 92, 94, 96 may be partly positioned between the turn 71 and the turn 72 of the tube 70, with the remainder located between the shell 20 and the tube 70. The portion located between the shell 20 and the tube 70 can minimize the flow of the first fluid between the shell 20 and the tube 70, and can guide the flow of the first fluid. have.

 The baffle fixing member 100 may be disposed vertically inside the shell 20. The baffle fixing member 100 may be located between the tube 70 and the shell 20. The baffle fixing member 100 may be disposed to be spaced apart from the tube 70.

The baffle fixing member 100 may be fixed by a plurality of baffle fixing member holders 102. The heat exchanger may allow the baffle fixing member 100 to be fixed to the shell 20, and the baffle fixing member holder 102 may be fixed to the shell 20. The baffle fixing member holder 102 may be formed with an insertion groove into which an upper portion of the baffle fixing member 100 may be inserted. The baffle fixing member holder 102 may support the plurality of baffle fixing members 100, and the plurality of baffle fixing members 100 may be supported together by a single baffle fixing member holder 102. The plurality of baffle fixing members 100 may be supported together by inserting the upper portions into the singular baffle fixing member holders 102. The plurality of baffle fixing members 100 may be screwed to the shell 20. The heat exchanger 4 may have a lower portion of the baffle fixing member 100 screwed to the second cover 23. A male screw may be formed below the baffle fixing member 100, and a female screw to which the male screw is screwed may be formed on the second cover 23.

The baffle fixing member holder 102 may be in contact with and supported by the shell 20. The baffle fixing member holder 102 may be in contact with and supported by the first cover 22. The baffle fixing member holder 102 may have a top surface formed in a flat plate shape. The shell 20 may be provided with a position fixing part for fixing the position of the baffle fixing member holder 102. The position fixation may include ribs 22 'formed in the shell 20. The rib 22 ′ may be formed on the bottom surface of the first cover 22. The rib 22 ′ may be formed in the same shape as the edge of the baffle fixing member holder 102. The rib 22 ′ may protrude downward from the lower surface of the first cover 22. The baffle fixing member holder 102 may be fitted to the rib 22 ′ at an upper portion thereof, and the baffle fixing member holder 102 may be fixed to the first cover 22 while being in contact with the first cover 22. Can be.

In the heat exchanger 4, the tube 70 may be supported by the shell 20 by the baffle 92, 94, 96, the baffle fixing member 100, and the baffle fixing member 102, and the tube 70 may be supported. ), The baffles 92, 94, 96, the baffle fixing member 100, and the baffle fixing member 102 may prevent excessive shaking of the tube 70 while buffering the vibration.

Hereinafter, the operation of the present invention will be described.

First, the second fluid may pass through the tube 70, and may exchange heat with the first fluid while passing through the tube 70. The second fluid may be discharged out of the heat exchanger 4 after sequentially passing through the plurality of tubes 70A and 70B.

The first fluid may be introduced into the inner lower portion of the shell 20 through the first fluid inflow pipe 30, and may flow upward in the shell 20 while being raised inside the shell 20. The first fluid flowing in an upward direction of the shell 20 may collide with at least one of the plurality of baffles 92, 94, 96, and the flow direction thereof may be switched to a horizontal direction or the like. The first fluid is capable of three-dimensional turning flow according to the positions of the plurality of baffles 92, 94 and 96, and the spiral fluid is formed by the phase difference and the height difference of the plurality of baffles 92, 94 and 96. It may be heat exchanged with the tube 70 while forming. The first fluid may be in plural contact with the tube 70 by a plurality of baffles 92, 94, 96 and heat exchange while passing through the gap 73 between the turns 71 and the turns 72 a plurality of times. The heat exchange performance of the group 4 can be improved. The first fluid may be introduced into the first fluid discharge pipe 40 from the inner upper portion of the shell 20, and may be discharged to the outside of the heat exchanger 4 through the first fluid discharge pipe 40. The first fluid passing through the first fluid discharge pipe 40 may heat-exchange the tube contacting the first fluid discharge pipe 40 while contacting the tube contacting the first fluid discharge pipe 40.

In the cleaning operation of the heat exchanger 4, the operator can detach the shell 20. The worker may remove the first cover 22 from the case 21 and the case 21 from the second cover 23. The operator may separate the baffle fixing member holder 102 from the plurality of baffle fixing members 100 and the plurality of baffle fixing members 100 from the second cover 23. When the plurality of baffle fixing members 100 are separated, the plurality of baffle fixing members 100 may be separated from the baffles without interfering with the tubes 70, and then the baffles may be removed from the tubes 70. The operator may wash the tube 70 with a cleaning brush or the like while removing the baffle and the baffle fixing member 100 and the baffle fixing member holder 102, and fix the tube 70 to the second cover 23. You can clean it easily.

4: Heat exchanger 20: Shell
30: first fluid inlet pipe 40: first fluid outlet pipe
70: tube 71, 72: turn
73: gap 92,94,96: baffle
100: baffle fixing member 102: baffle fixing member holder
F: spiral turning flow VX: vertical center axis

Claims (15)

A shell;
A first fluid inlet pipe guiding a first fluid into the shell;
A tube through which the second fluid that is heat-exchanged with the first fluid passes and is wound in a plurality of spirals and has a gap formed between the turns;
A first fluid discharge pipe through which the first fluid is guided out of the shell;
A heat exchanger comprising a baffle into which a portion is inserted into the gap.
A baffle fixing member disposed in the shell and fixing the baffle;
The baffle is formed with a fixing portion fixed to the baffle fixing member,
And the fixing part is located in the space between the shell and the tube. The method of claim 1,
The baffle is a plurality of heat exchanger spaced apart. 3. The method of claim 2,
The tube has a vertical central axis,
And the plurality of baffles are disposed orthogonal to the vertical central axis. 3. The method of claim 2,
And the plurality of baffles are disposed different from each other in height from a bottom of the shell. 3. The method of claim 2,
The plurality of baffles are arranged to have a phase difference inside the shell. 3. The method of claim 2,
The plurality of baffles are heat exchanger is arranged to face a portion in the vertical direction. 3. The method of claim 2,
The plurality of baffles are arranged to form a spiral swirling flow of the first fluid inside the shell. The method of claim 1,
And the baffle is spaced apart from the first fluid discharge line in the radial direction of the shell. The method of claim 1,
And the baffle has a radial length of the shell shorter than a separation distance between the shell and the first fluid discharge conduit. The method of claim 1,
The baffle fixing member is disposed vertically in the shell. 11. The method of claim 10,
The baffle fixing member is located between the tube and the shell. 11. The method of claim 10,
The baffle fixing member is fixed to a plurality of baffles of a plurality,
The plurality of baffle holding member is a heat exchanger supported by the baffle holding member holder. 13. The method of claim 12,
The plurality of baffle fixing members are screwed to the shell,
The baffle fixing member holder is in contact with and supported by the shell. 13. The method of claim 12,
And a shell having a position fixing portion for fixing the position of the baffle fixing member holder. The method of claim 1,
The shell has a long case in the vertical direction,
A first cover positioned above the case;
A second cover located below the case;
The baffle fixing member is coupled to the second cover.
KR1020120068751A 2012-06-26 2012-06-26 Heat exchanger KR20140000938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120068751A KR20140000938A (en) 2012-06-26 2012-06-26 Heat exchanger

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Application Number Priority Date Filing Date Title
KR1020120068751A KR20140000938A (en) 2012-06-26 2012-06-26 Heat exchanger

Publications (1)

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KR20140000938A true KR20140000938A (en) 2014-01-06

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015163667A1 (en) * 2014-04-22 2015-10-29 최영환 Heat exchanger having circulation guide
KR101662532B1 (en) * 2016-07-20 2016-10-14 김수철 Heat exchanger Having Center hole Typed Bulkhead
CN112902703A (en) * 2019-12-03 2021-06-04 山东大学 Shell-and-tube heat exchanger for gas heat exchange
CN112964100A (en) * 2020-03-04 2021-06-15 山东大学 Loop heat pipe heat exchanger capable of switching heat sources according to temperature difference
CN112964098A (en) * 2020-03-04 2021-06-15 山东大学 Loop heat pipe heat exchanger capable of switching heat sources according to speed difference

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015163667A1 (en) * 2014-04-22 2015-10-29 최영환 Heat exchanger having circulation guide
RU2647264C1 (en) * 2014-04-22 2018-03-15 Юнг-хван ЧОИ Heat exchanger with guide circulation
KR101662532B1 (en) * 2016-07-20 2016-10-14 김수철 Heat exchanger Having Center hole Typed Bulkhead
CN112902703A (en) * 2019-12-03 2021-06-04 山东大学 Shell-and-tube heat exchanger for gas heat exchange
CN112902703B (en) * 2019-12-03 2022-02-08 山东大学 Shell-and-tube heat exchanger for gas heat exchange
CN112964100A (en) * 2020-03-04 2021-06-15 山东大学 Loop heat pipe heat exchanger capable of switching heat sources according to temperature difference
CN112964098A (en) * 2020-03-04 2021-06-15 山东大学 Loop heat pipe heat exchanger capable of switching heat sources according to speed difference
CN112964098B (en) * 2020-03-04 2022-03-04 山东大学 Loop heat pipe heat exchanger capable of switching heat sources according to speed difference
CN112964100B (en) * 2020-03-04 2022-03-08 山东大学 Loop heat pipe heat exchanger capable of switching heat sources according to temperature difference

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