CN110595233B - Tube box coupling U-shaped heat exchange tube type multi-tube side heat exchanger - Google Patents
Tube box coupling U-shaped heat exchange tube type multi-tube side heat exchanger Download PDFInfo
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- CN110595233B CN110595233B CN201910938711.6A CN201910938711A CN110595233B CN 110595233 B CN110595233 B CN 110595233B CN 201910938711 A CN201910938711 A CN 201910938711A CN 110595233 B CN110595233 B CN 110595233B
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- tube
- heat exchange
- shaped heat
- box
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- 230000008878 coupling Effects 0.000 title claims abstract description 24
- 238000010168 coupling process Methods 0.000 title claims abstract description 24
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 59
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012546 transfer Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
Classifications
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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
- F28D7/08—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 otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—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 otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
-
- 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
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
-
- 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
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- 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
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/226—Transversal partitions
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a tube box coupling U-shaped heat exchange tube type multi-tube side heat exchanger, which comprises a shell, a tube plate, a plurality of groups of U-shaped heat exchange tubes and a coupling tube box, wherein the average tube ends of the plurality of groups of U-shaped heat exchange tubes are all fixed on the tube plate; the coupling tube box comprises a tube box, two groups of tube side connecting tubes, two groups of inlet and outlet fluid distribution cavities, a heat exchange tube relay distribution cavity and a flow guiding device arranged in the heat exchange tube relay distribution cavity, wherein the inlet and outlet fluid distribution cavities are respectively communicated with the flat tube ends of the outermost U-shaped heat exchange tubes to form a total inlet and a total outlet; the remaining flat tube ends of the plurality of U-shaped heat exchange tubes are sequentially communicated through the heat exchange tube relay distribution cavities according to the flow direction, and the flow guiding device divides the heat exchange tube relay distribution cavities into a plurality of equidistant fluid chambers which are communicated with each other. The heat exchanger realizes the installation of the U-shaped heat exchange tubes with three or more tube passes, avoids using expansion joints, reduces fluid disturbance through the heat exchange tube relay distribution cavity and the flow guiding device, and reduces the pressure loss of fluid.
Description
Technical Field
The invention relates to a multi-tube-pass heat exchanger, in particular to a tube-box coupling U-shaped heat exchange tube type multi-tube-pass heat exchanger.
Background
The shell-and-tube heat exchanger is the most widely used heat exchanger in the heat transfer of industrial processes. The shell-and-tube heat exchanger is suitable for a large range of operating temperature and pressure, low in manufacturing cost, convenient to clean, large in treatment capacity and reliable in work, and has accumulated a lot of experience in design, processing and manufacturing for a long time, so that the shell-and-tube heat exchanger is often the most widely applied heat exchanger.
In the design of a traditional shell-and-tube heat exchanger, when the shell-side structure is certain and the tube-side flow is small, a multi-tube-type structure is often adopted to increase the flow speed of fluid in a heat exchange tube bundle, and the U-shaped heat exchange tube heat exchanger is a common mode of a multi-tube-side heat exchanger.
The U-shaped tube type heat exchanger is a heat exchanger with a tube bundle consisting of U-shaped tubes with different bent tube radiuses, and two ends of each tube are fixed on the same tube plate. Because each U-shaped pipe can freely stretch out and draw back, no temperature difference stress can be generated between the pipe bundle and the shell.
If the number of tube passes is three or more, and still adopts U-shaped tube heat exchanger, because the heat exchanger shell side both ends all have the arrangement of U-shaped elbow, traditional bow-shaped baffling board can't install in the middle of the tube bank, leads to can't adopting U-shaped heat transfer tube.
Therefore, when the number of tube passes is three or more, only a common straight heat exchanger can be adopted, and the division plates are arranged in the tube box in a matched manner, so that the fluid flow with multiple tube passes is realized.
In order to solve the above problems, an ideal technical solution is always sought.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides a tube-box coupling U-shaped heat exchange tube type multi-tube-path heat exchanger which can solve the problem of installation of three or more tube passes, avoid using expansion joints, reduce fluid disturbance through a heat exchange tube relay distribution cavity and a flow guiding device and reduce the pressure loss of fluid.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the tube box coupling U-shaped heat exchange tube type multi-tube side heat exchanger comprises a shell, a tube plate, a plurality of groups of U-shaped heat exchange tubes and a coupling tube box, wherein the plurality of groups of U-shaped heat exchange tubes are sequentially arranged in parallel in the shell, the flat tube ends of the plurality of groups of U-shaped heat exchange tubes are all fixed on the tube plate, and the coupling tube box is used for sequentially communicating the plurality of groups of U-shaped heat exchange tubes; the coupling tube box comprises a tube box, two groups of tube side connecting tubes, two groups of inlet and outlet fluid distribution cavities, a heat exchange tube relay distribution cavity and a flow guiding device arranged in the heat exchange tube relay distribution cavity, wherein the two groups of tube side connecting tubes and the two groups of inlet and outlet fluid distribution cavities are respectively positioned at two sides of the heat exchange tube relay distribution cavity, the tube side connecting tubes are communicated with the inlet and outlet fluid distribution cavities, and the inlet and outlet fluid distribution cavities are respectively communicated with the flat tube ends of the outermost U-shaped heat exchange tubes to form a total inlet and a total outlet; the residual flat tube ends of the plurality of U-shaped heat exchange tubes are sequentially communicated with each other through the heat exchange tube relay distribution cavities in the flowing direction, and the flow guiding device divides the heat exchange tube relay distribution cavities into a plurality of equidistant fluid chambers which are communicated with each other.
Based on the above, the heat exchange tube relay distribution cavity comprises at least one relay cavity, adjacent flat tube ends of two adjacent groups of U-shaped heat exchange tubes are connected to the same relay cavity, and the flow guiding device is arranged in the relay cavity.
The above-mentioned flow guiding device is a plurality of flow guiding plates, the arrangement direction of the flow guiding plates is vertical to the arrangement direction of the plurality of groups of U-shaped heat exchange tubes, the flow guiding plates are provided with pressure balance holes, the flow guiding plates divide the relay chamber into the fluid chambers, and the fluid chambers are mutually communicated through the pressure balance holes.
Based on the above, the tube side connecting tube and the inlet and outlet fluid distribution cavities are four in number, and two tube side connecting tubes and the inlet and outlet fluid distribution cavities are arranged on two sides of the relay distribution cavity of the heat exchange tube in a group.
Based on the above, one end of the tube side connecting tube of the tube box is a flat plate or a convex plate.
Based on the above, the pipe box is of a box type structure.
Based on the above, the outer edge of the pipe box is provided with a circle of bolt holes.
The base is characterized by further comprising a guide cylinder structure arranged at the inlet end and the outlet end of the shell.
The guide plate is a rectangular flat plate or a curved plate.
The pressure balance holes are triangular or round-notch-shaped or round or square.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, in particular to a method of arranging a relay distribution cavity of the heat exchange tube on the tube plate, realizing the installation of multiple U-shaped heat exchange tubes with three or more tube passes, retaining the advantages of the U-shaped heat exchange tubes, reducing the stress at the joint of the shell pass and the tube pass tube plate and the heat exchange tubes, avoiding the temperature difference stress between the tube bundle and the shell when the temperature difference in the heat exchanger is large, and avoiding the use of expansion joints.
Furthermore, in order to solve the problem of disturbance of the fluid in the relay distribution cavity of the heat exchange tube, a flow guiding device is arranged in the relay cavity to form a smaller fluid cavity, so that disturbance of the fluid in the whole relay cavity is reduced, and the fluid flows into another U-shaped heat exchange tube under the condition of smaller pressure loss.
Furthermore, in order to prevent the fluid from directly flushing the heat exchange tube bundle and fully utilize the heat exchange of the heat exchange tube in the heat exchanger, a guide cylinder is arranged at the inlet and the outlet of the shell pass of the heat exchanger shell. The direct impact of high-speed fluid at the inlet on the tube bundle can be prevented, and the shell-side fluid can be uniformly distributed, so that the heat transfer area of the tube bundle at the inlet section of the shell side is fully utilized, and the effects of reducing the heat transfer dead zone and preventing the possible fluid vibration at the inlet section are achieved.
Drawings
FIG. 1 is a schematic diagram of a tube box coupled U-shaped heat exchange tube type multi-tube side heat exchanger in the present invention.
Fig. 2 is a schematic structural view of a coupling box according to the present invention.
Fig. 3 is a schematic structural view of a flat-plate coupling tube box according to the present invention.
Fig. 4 is a schematic structural view of a male coupling box according to the present invention.
Fig. 5 is a schematic structural view of a box-type coupling tube box in the present invention.
Fig. 6 and 6-1 are schematic structural views of the guide cylinder of the present invention.
In the figure: 1. a housing; 2. a tube sheet; 3.U-shaped heat exchange tubes; 4. a coupling tube box; 4-1, a pipe box; 4-2, taking over the tube side; 4-3, an inlet and outlet fluid distribution chamber; 4-4, a relay distribution cavity of the heat exchange tube; 4-5, a flow guiding device; 4-6, pressure balance holes; 4-7, a fluid chamber; 10. a guide cylinder.
Detailed Description
The technical scheme of the invention is further described in detail through the following specific embodiments.
1-5, A tube box coupling U-shaped heat exchange tube type multi-tube side heat exchanger comprises a shell 1, a tube plate 2,2 groups of U-shaped heat exchange tubes 3 and a coupling tube box 4, wherein the U-shaped heat exchange tubes 3 of the 2 groups are sequentially arranged in the shell 1 in parallel, the average tube ends of the U-shaped heat exchange tubes 3 of the 2 groups are fixed on the tube plate 2, and the coupling tube box 4 is used for sequentially communicating the U-shaped heat exchange tubes 3 of the plurality of groups; the coupling tube box 4 comprises a tube box 4-1, two groups of tube side connecting tubes 4-2, two groups of inlet and outlet fluid distribution cavities 4-3, a heat exchange tube relay distribution cavity 4-4 and a flow guiding device 4-5 arranged in the heat exchange tube relay distribution cavity, wherein the two groups of tube side connecting tubes 4-2 and the two groups of inlet and outlet fluid distribution cavities 4-3 are respectively positioned at two sides of the heat exchange tube relay distribution cavity 4-4, the tube side connecting tubes 4-2 are communicated with the inlet and outlet fluid distribution cavities 4-3, and the inlet and outlet fluid distribution cavities 4-3 are respectively communicated with flat tube ends of the outermost U-shaped heat exchange tubes to form a total inlet and a total outlet; the remaining flat tube ends of the plurality of U-shaped heat exchange tubes are sequentially communicated with each other in the flow direction through the heat exchange tube relay distribution cavity 4-4, and the flow guiding device 4-5 divides the heat exchange tube relay distribution cavity into a plurality of equidistant fluid chambers which are communicated with each other.
Specifically, as shown in fig. 2, the heat exchange tube relay distribution chamber 4-4 includes a relay chamber, adjacent flat tube ends of two adjacent groups of U-shaped heat exchange tubes are connected to the same relay chamber, the flow guiding device 4-5 is a plurality of flow guiding plates, the flow guiding plates are rectangular flat plates or curved plates, the arrangement direction of the flow guiding plates is perpendicular to the arrangement direction of the plurality of groups of U-shaped heat exchange tubes 4-2, each flow guiding plate is provided with a pressure balancing hole 4-6, the pressure balancing hole is triangular, round or square, each flow guiding plate divides the relay chamber into fluid chambers 4-7, and each fluid chamber is mutually communicated through the pressure balancing holes 4-6.
In other embodiments, when the number of passes exceeds 4, two relay chambers are required, and the two relay chambers are isolated from each other.
Structural principle: the two groups of tube side connecting pipes 4-2 comprise inlet connecting pipes and outlet connecting pipes, tube side fluid enters corresponding inlet and outlet fluid distribution cavities through the inlet connecting pipes, then enters into each heat exchange tube of the U-shaped heat exchange tube bundle, walks to the U-shaped bent tube end to be one tube side number, changes the flow direction through the U-shaped elbow, walks to the inlet end to finish the second tube side, enters into the heat exchange tube relay distribution cavity 4-4 of the tube box, enters into the inlet end of the second U-shaped heat exchanger after being distributed in a relay mode, passes through the U-shaped bent tube of the second U-shaped heat exchanger, walks to the third and fourth tube sides, enters into the inlet and outlet fluid distribution cavities corresponding to the outlet connecting pipes, finally is discharged, walks to the tube side, and realizes the fluid flow of the multi-tube side U-shaped heat exchange tubes.
The structure effectively solves the problem that the multi-U-shaped heat exchange tube cannot be installed under the condition of 3 or more tube passes.
In the process, in order to stabilize the fluid in the relay distribution cavity 4-4 of the heat exchange tube, a flow guiding device 4-5 is arranged in the relay cavity, and a pressure balance hole 4-6 is formed in the flow guiding device 4-5.
The flow guiding device divides the relay chamber into smaller fluid cavities, so that disturbance of fluid in the whole distribution chamber is reduced, and the fluid flows into another U-shaped heat exchange tube under the condition of smaller pressure loss; the flow guiding device is internally provided with a pressure balancing hole, the pressure balancing hole enables the formed fluid chambers to have the same pressure, the pressure enables the flow of fluid entering the other U-shaped heat exchange tube to be uniform, if the fluid of the last tube pass is non-uniform, the fluid can be corrected after passing through the flow guiding device and becomes uniform, and thus the heat exchange area can be fully utilized.
As shown in fig. 3-5, the type of the pipe box can be a flat plate type, a convex plate type or a box type structure according to requirements, and a circle of bolt holes are formed in the outer edge of the pipe box and used for being fixed with the shell.
As shown in fig. 6 and 6-1, in order to prevent the fluid from directly scouring the heat exchange tube bundle and to fully utilize the heat exchange of the heat exchange tubes in the heat exchanger, a guide cylinder 10 structure is provided at the inlet and outlet ends of the housing. The direct impact of high-speed fluid at the inlet on the tube bundle can be prevented, and the shell-side fluid can be uniformly distributed, so that the heat transfer area of the tube bundle at the inlet section of the shell side is fully utilized, and the effects of reducing the heat transfer dead zone and preventing the possible fluid vibration at the inlet section are achieved. The guide cylinder can be divided into an inner guide cylinder and an outer guide cylinder according to the relative position relation between the installation position and the shell.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present invention and are not limiting; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (6)
1. A tube box coupling U-shaped heat exchange tube type multi-tube side heat exchanger is characterized in that: the device comprises a shell, a tube plate, a plurality of groups of U-shaped heat exchange tubes and a coupling tube box, wherein the plurality of groups of U-shaped heat exchange tubes are sequentially arranged in parallel in the shell, the average tube ends of the plurality of groups of U-shaped heat exchange tubes are all fixed on the tube plate, and the coupling tube box is used for sequentially communicating the plurality of groups of U-shaped heat exchange tubes; the coupling tube box comprises a tube box, two groups of tube side connecting tubes, two groups of inlet and outlet fluid distribution cavities, a heat exchange tube relay distribution cavity and a flow guiding device arranged in the heat exchange tube relay distribution cavity, wherein the two groups of tube side connecting tubes and the two groups of inlet and outlet fluid distribution cavities are respectively positioned at two sides of the heat exchange tube relay distribution cavity, the tube side connecting tubes are communicated with the inlet and outlet fluid distribution cavities, and the inlet and outlet fluid distribution cavities are respectively communicated with the flat tube ends of the outermost U-shaped heat exchange tubes to form a total inlet and a total outlet; the residual flat tube ends of the plurality of U-shaped heat exchange tubes are sequentially communicated through the heat exchange tube relay distribution cavities according to the flow direction, and the flow guiding device divides the heat exchange tube relay distribution cavities into a plurality of equidistant fluid chambers which are communicated with each other; the heat exchange tube relay distribution cavity comprises at least one relay cavity, adjacent flat tube ends of two adjacent groups of U-shaped heat exchange tubes are connected into the same relay cavity, and the flow guiding device is arranged in the relay cavity; the flow guiding device is a plurality of flow guiding plates, the arrangement direction of the flow guiding plates is vertical to the arrangement direction of the plurality of groups of U-shaped heat exchange tubes, pressure balance holes are formed in each flow guiding plate, each flow guiding plate divides the relay chamber into the fluid chambers, and the fluid chambers are mutually communicated through the pressure balance holes; the four tube side connecting tubes and the fluid distribution cavities of the inlet and outlet are arranged on two sides of the relay distribution cavity of the heat exchange tube in a group, and a circle of bolt holes are formed in the outer edge of the tube box.
2. A tube and box coupled U-shaped heat exchange tube type multi-pass heat exchanger as defined in claim 1, wherein: one end of the tube side connecting tube of the tube box is a flat plate or a convex plate.
3. A tube and box coupled U-shaped heat exchange tube type multi-pass heat exchanger as defined in claim 1, wherein: the pipe box is of a box type structure.
4. A tube and box coupled U-shaped heat exchange tube type multi-pass heat exchanger as defined in claim 1, wherein: the device also comprises a guide cylinder structure arranged at the inlet end and the outlet end of the shell.
5. A tube and box coupled U-shaped heat exchange tube type multi-pass heat exchanger as defined in claim 2, wherein: the guide plate is a rectangular flat plate or a curved plate.
6. A tube and box coupled U-shaped heat exchange tube type multi-pass heat exchanger as defined in claim 2, wherein: the pressure balance hole is triangular or round-notch-shaped or round or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910938711.6A CN110595233B (en) | 2019-09-30 | 2019-09-30 | Tube box coupling U-shaped heat exchange tube type multi-tube side heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910938711.6A CN110595233B (en) | 2019-09-30 | 2019-09-30 | Tube box coupling U-shaped heat exchange tube type multi-tube side heat exchanger |
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| Publication Number | Publication Date |
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| CN110595233A CN110595233A (en) | 2019-12-20 |
| CN110595233B true CN110595233B (en) | 2024-09-20 |
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| CN201910938711.6A Active CN110595233B (en) | 2019-09-30 | 2019-09-30 | Tube box coupling U-shaped heat exchange tube type multi-tube side heat exchanger |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210833155U (en) * | 2019-09-30 | 2020-06-23 | 郑州大学 | A tube-box coupled U-shaped heat exchange tube type multi-tube heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089804A (en) * | 1996-09-10 | 1998-04-10 | Sanyo Electric Co Ltd | Out-tube boiling type heat exchanger and absorption refrigerator with this heat exchanger |
| KR20120031156A (en) * | 2009-04-17 | 2012-03-30 | 닛소 엔지니아링 가부시키가이샤 | Tubular flow type reactor |
| CN101706227B (en) * | 2009-11-27 | 2013-01-02 | 北京化工大学 | Shell-and-tube heat exchanger with un-notched traverse baffles |
| CN202057210U (en) * | 2011-03-17 | 2011-11-30 | 向伟 | Novel fluid temperature sensing heat exchanger |
| CN202511658U (en) * | 2011-12-21 | 2012-10-31 | 洛阳双瑞特种装备有限公司 | Spiral baffle heat exchanger for oil refining device |
| CN202582275U (en) * | 2012-04-10 | 2012-12-05 | 甘肃蓝科石化高新装备股份有限公司 | Multi-fluid shell-and-tube heat exchanger |
| CN202582283U (en) * | 2012-04-10 | 2012-12-05 | 甘肃蓝科石化高新装备股份有限公司 | Detachable multi-fluid tube-shell type heat exchanger |
| JP6401291B2 (en) * | 2013-12-26 | 2018-10-10 | バーダス テクノロジーズ プライベート リミテッドＶｅｒｄｕｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｐｔｅ．Ｌｔｄ． | Fluid processing apparatus and method for cooling an air flow by fluid processing apparatus |
| CN103954153B (en) * | 2014-05-14 | 2015-10-28 | 山东北辰机电设备股份有限公司 | The pure reverse stream pipe shell heat exchanger of multipaths |
| CN106855367B (en) * | 2017-02-28 | 2024-01-26 | 郑州大学 | Shell-and-tube heat exchanger with distributed inlets and outlets |
| CN106679467B (en) * | 2017-02-28 | 2019-04-05 | 郑州大学 | Shell-and-tube heat exchanger with external bobbin carriage |
| CN108007243A (en) * | 2017-12-28 | 2018-05-08 | 济南市水处理设备厂有限公司 | Combined type waved tube heat exchanger |
| RU2687549C1 (en) * | 2018-03-15 | 2019-05-14 | Александр Витальевич Барон | Heat exchanger |
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2019
- 2019-09-30 CN CN201910938711.6A patent/CN110595233B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210833155U (en) * | 2019-09-30 | 2020-06-23 | 郑州大学 | A tube-box coupled U-shaped heat exchange tube type multi-tube heat exchanger |
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