CN112432525A - Elastic joint straight pipe heat exchanger - Google Patents

Elastic joint straight pipe heat exchanger Download PDF

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Publication number
CN112432525A
CN112432525A CN202011424411.5A CN202011424411A CN112432525A CN 112432525 A CN112432525 A CN 112432525A CN 202011424411 A CN202011424411 A CN 202011424411A CN 112432525 A CN112432525 A CN 112432525A
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CN
China
Prior art keywords
shell
baffle
heat exchanger
casing
elastic joint
Prior art date
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Granted
Application number
CN202011424411.5A
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Chinese (zh)
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CN112432525B (en
Inventor
宿艳彩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qilu University of Technology
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Qilu University of Technology
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Filing date
Publication date
Application filed by Qilu University of Technology filed Critical Qilu University of Technology
Priority to CN202011424411.5A priority Critical patent/CN112432525B/en
Priority to NL2027260A priority patent/NL2027260B1/en
Priority to LU102413A priority patent/LU102413B1/en
Publication of CN112432525A publication Critical patent/CN112432525A/en
Application granted granted Critical
Publication of CN112432525B publication Critical patent/CN112432525B/en
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Classifications

    • 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
    • F28D7/16—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 arranged in parallel spaced relation
    • F28D7/163—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 arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • 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
    • F28D7/16—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 arranged in parallel spaced relation
    • 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
    • F28F13/10—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by imparting a pulsating motion to the flow, e.g. by sonic vibration
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end 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
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/02—Flexible 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
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention belongs to the technical field of heat transfer, and relates to an elastic joint straight pipe heat exchanger which comprises a shell, wherein a pipe bundle assembly is arranged in the shell, the pipe bundle assembly comprises a straight pipe extending along the axis direction of the shell and elastic joints arranged at two ends of the straight pipe, a partition plate is arranged in the shell along the axis direction, the axis of the partition plate is intersected with the axis of the shell, at least one partition plate is provided with a notch, and the shell is provided with a shell side inlet and a shell side outlet in a direction perpendicular to the axis direction. The invention has the advantage of improving the heat exchange strengthening effect on the basis of prolonging the fatigue life of the tube bundle.

Description

Elastic joint straight pipe heat exchanger
Technical Field
The invention belongs to the technical field of heat transfer, and relates to an elastic joint straight pipe heat exchanger.
Background
The elastic tube bundle heat exchanger is a heat exchanger adopting a fluid induced vibration enhanced heat exchange technology, namely, the fluid in the shell side of the heat exchanger is utilized to induce the tube bundle vibration of the heat exchanger so as to achieve the purpose of enhanced heat exchange, and the elastic tube bundle heat exchanger does not need to consume extra energy, thereby becoming a more potential enhanced heat exchange technology. Wherein, it becomes the key to design the elastic tube bundle heat exchanger suitable for shell side fluid induced vibration.
Chinese patent CN106288909A discloses a planar folded elastic reinforced heat exchange tube bundle and a heat exchanger, which comprises a first heat exchange tube and a second heat exchange tube having a different direction from the first heat exchange tube, wherein the first heat exchange tube and the second heat exchange tube are used to form a folded heat exchange tube bundle, the inlet end and the outlet end of the heat exchange tube bundle are fixed, and the other parts are in a floating state, so as to form a suitable transverse vibration frequency and amplitude to reinforce heat transfer.
In addition, chinese patent CN210638549U discloses a small spiral-wound elastic tube heat exchanger, which has an outer tube bank, a middle tube bank and an inner tube bank, wherein the end of each tube bank is fixed on the tube plate, and each tube bank adopts copper tubes and is in a spiral tubular structure, and the spiral directions of the adjacent tube banks are opposite, so as to increase the turbulence characteristic of the shell-side fluid to enhance heat transfer.
However, in the above proposed tube bundle heat exchanger, the connection between the tube bundle and the fluid inlet/outlet pipe is rigid, so that the tube bundle is vibrated by the action of the shell-side fluid to enhance heat transfer, and on the other hand, the two ends of the tube bundle are fixed to the inlet/outlet pipe, and the ends of the tube bundle are subjected to the pulsating force which changes periodically and alternately, so that the fatigue life of the tube bundle is reduced. In addition, in order to satisfy the condition of fluid-induced vibration, the conventional elastic tube bundle heat exchanger is usually designed to have a large tube bundle size. Meanwhile, in the mechanism research of tube bundle vibration, the fact that vortex shedding can be generated when shell-pass fluid flows around the tube bundle in the heat exchanger is found, and the pulsating vortex shedding force is moderate in frequency and strength and is the main reason of tube bundle vibration.
Therefore, how to realize the full utilization of the vortex shedding force to improve the heat transfer enhancement effect of the heat exchanger and improve the fatigue life of the tube bundle becomes the problem to be solved.
Disclosure of Invention
The elastic joint straight pipe heat exchanger provided by the invention can fully utilize the pulsating lift force generated by vortex shedding to excite the vibration of the pipe bundle, improve the heat exchange strengthening effect, and can meet the requirement of fatigue life.
The technical scheme of the invention comprises the following steps: the utility model provides an elastic joint straight tube heat exchanger, includes the casing, install the tube bank subassembly in the casing, the tube bank subassembly includes the straight tube that extends along casing axis direction and installs the elastic joint at the straight tube both ends, it is equipped with the baffle just to be equipped with the baffle along the axis direction in the casing the axis of baffle intersects with the axis of casing, and an at least baffle is equipped with the breach, casing perpendicular to axis direction is equipped with shell side import and shell side export.
The technical scheme of the invention also comprises: the baffle is including being located the first baffle that is close to the casing tip and the second baffle that is located the casing middle part, first baffle and second baffle all are equipped with the baffle connecting hole.
The technical scheme of the invention also comprises: the connecting pipe is installed to the baffle connecting hole, the at least one end of connecting pipe is located outside the baffle connecting hole and can dismantle with elastic joint and be connected.
The technical scheme of the invention also comprises: the connecting pipe is step-shaped, and the connecting pipe includes consecutive first connection face, second connection face and third connection face, second connection face is greater than first connection face and third connection face at radial ascending thickness.
The technical scheme of the invention also comprises: the second baffle is provided with a notch, and the notch is positioned at a position close to the edge of the second baffle.
The technical scheme of the invention also comprises: the number of the second partition plates is at least two, and the gaps of the adjacent second partition plates are arranged in a staggered mode in the direction perpendicular to the axis of the shell.
The technical scheme of the invention also comprises: the elastic joint comprises a flexible joint and a spring arranged on the flexible joint, one end of the flexible joint is detachably connected with the end part of the straight pipe, and the other end of the flexible joint is detachably connected with the connecting pipe.
The technical scheme of the invention also comprises: the shell comprises an upper shell and a lower shell which are fixedly connected through bolts, partition plate grooves are formed in the upper shell and the lower shell, a shell pass inlet is located in the upper shell, and a shell pass outlet is located in the lower shell.
The invention has the following beneficial effects: the heat exchange tube bundle is designed into a tube bundle assembly form consisting of the straight tube and the elastic joint, the elastic joint is utilized to form non-rigid connection between the tube bundle assembly and the fixed mounting parts thereof, so that the reduction of the fatigue life caused by rigid connection between the tube bundle assembly and the fixed mounting parts during vibration-enhanced heat exchange is avoided, the fatigue life of the tube bundle assembly can be prolonged, and the reliability of the whole heat exchanger is further improved. And the heat exchange tube of the tube bundle assembly adopts the design of a straight tube, the straight tube is arranged along the axis direction of the shell, a partition plate is arranged in the shell of the heat exchanger, the inlet and the outlet of the shell pass are designed to be vertical to the axis of the shell, thus the medium entering the shell pass is vertical to the medium in the straight tube, and under the action of the partition plate, shell pass fluid flows around the heat exchange straight tube to generate vortex shedding, and the tube bundle assembly generates three-dimensional periodic vibration under the action of the vortex shedding force to achieve the purpose of strengthening heat exchange.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of the lower case in the embodiment.
FIG. 3 is a schematic view of the tube bundle installation in the example.
FIG. 4 is a schematic view of a link pipe in the embodiment.
Fig. 5 is a schematic view of a first separator in the example.
FIG. 6 is a schematic view of a second separator in the example.
FIG. 7 is a schematic view of a bundle assembly according to an embodiment.
FIG. 8 is an exploded view of the elastic joint in the embodiment.
Wherein: 1. go up the casing, 11, shell side import, 12, tube side import, 2, lower casing, 21, shell side export, 22, tube side export, 23, bolt hole, 24, baffle groove, 3, bolt, 4, tube bank subassembly, 41, straight tube, 42, elastic joint, 421, flexible joint, 422, spring, 5, first baffle, 6, second baffle, 61, straight section, 7, connecting pipe, 71, first connection face, 72, second connection face, 73, third connection face, 8, the baffle connecting hole.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In this document, terms such as "upper, lower, left, right, inner, and outer" are established based on the positional relationship shown in the drawings, and the corresponding positional relationship may vary depending on the drawings, and therefore, the terms are not to be construed as an absolute limitation of the protection scope; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements. In the embodiments of the present invention, "above", "below", and the like include the present numbers.
The elastic joint straight pipe heat exchanger disclosed by the embodiment of the invention can avoid the reduction of the fatigue life caused by rigid connection between the pipe bundle and the fixed mounting part thereof, and can strengthen the heat exchange effect while prolonging the fatigue life of the pipe bundle.
As shown in fig. 1 to 8, the elastic joint straight tube heat exchanger of the present embodiment includes a casing, specifically, the casing includes an upper casing 1 and a lower casing 2, wherein a shell side inlet 11 and a tube side inlet 12 are installed on the upper casing 1, a shell side outlet 21 and a tube side outlet 22 are installed on the lower casing 2, and bolt holes 23 are processed at the connection positions of the upper casing 1 and the lower casing 2, so that the upper casing 1 and the lower casing 2 can be fixedly connected by using bolts 3.
In addition, partition grooves 24 are provided in the upper case 1 and the lower case 2 for installing partitions. Specifically, the partition groove 24 is provided along the axial direction of the housing, which is the longitudinal direction of the housing. Thus, the baffle plate can be installed along the axial direction of the shell, and the axial line of the baffle plate is intersected with the axial line of the shell, for example, the baffle plate can be installed in the shell in a vertical direction, so that the fluid space in the shell is divided into a plurality of sections along the axial direction of the fluid space, the disturbance of shell-side fluid to the tube bundle is increased, and the vortex shedding effect is strengthened.
Specifically, the partition plates include a first partition plate 5 located near the end of the housing and a second partition plate 6 located in the middle of the housing, and both the first partition plate 5 and the second partition plate 6 are provided with a partition plate connecting hole 8, the partition plate connecting hole 8 can be used for installing a connecting pipe 7, and at least one end of the connecting pipe 7 extends out of the partition plate connecting hole 8 for detachable connection with the elastic joint 42.
As shown in fig. 4, the connection pipe 7 is stepped, that is, includes a first connection surface 71, a second connection surface 72 and a third connection surface 73 which are connected in sequence, wherein the thickness of the second connection surface 72 in the radial direction is greater than that of the first connection surface 71 and the third connection surface 73, and the first connection surface 71, the second connection surface 72 and the third connection surface 73 can be all processed with screw threads, so that when mounting, the second connection surface 72 is screwed into the partition mounting holes 8 of the first partition 5 and the second partition 6, and the first connection surface 71 and the third connection surface 73 which extend out of the partition mounting holes 8 are fixed with the elastic structure 42 by screw threads.
A gap is formed in the second partition 6 and is arranged close to the edge of the second partition 6, so that a fluid passage space is formed between the second partition 6 and the housing by means of the gap. Specifically, the notch may be formed by straight sections 61 on the second partition plates 6, at least two second partition plates 6 are installed in the casing, and the notches of adjacent second partition plates 6 are arranged in a staggered manner in a direction perpendicular to the axis of the casing, that is, as shown in fig. 3, when the casing is installed, the straight section 61 of one second partition plate 6 is placed downward, and the straight section 61 of the other second partition plate 6 is placed upward, so that when the shell-side fluid passes through the second partition plates 6, one part passes through the second partition plates 6 below, and the other part passes through the second partition plates 6 above, the flow of the shell-side fluid and the straight pipe 41 can be in a substantially perpendicular state, and the vortex shedding force can be fully utilized.
A bundle assembly 4 is installed in a housing space formed by the upper housing 1 and the lower housing 2, wherein the bundle assembly 4 includes a straight tube 41 extending in the axial direction of the housing and elastic joints 42 installed at both ends of the straight tube 41, and, as shown in fig. 8, the elastic joints 42 include flexible joints 421 and springs 422 installed on the flexible joints 421. During installation, the spring 422 is firstly sleeved on the flexible joint 421, then one end of the flexible joint 421 is connected with the end of the straight pipe 41, specifically, threads can be respectively processed on the flexible joint 421 and the straight pipe 41, so that the flexible joint 421 and the straight pipe are connected by adopting the threads, and meanwhile, the other end of the flexible joint 421 is fixed with the first connecting surface 71 or the third connecting surface 73 of the connecting pipe 7 by the threads. Therefore, the tube bundle assembly 4 can be elastically installed and fixed on the partition plate, then the partition plate is placed in the partition plate groove 24, and the upper shell 1 and the lower shell 2 are connected and fixed by the bolts 3 to complete the assembly of the heat exchanger.
During operation, a shell-side fluid enters from the shell-side inlet 11 and flows into a first channel formed by the first partition plate 5 and the second partition plate 6, the vortex shedding is generated around the heat exchange straight pipe 41, and the tube bundle assembly 4 generates three-dimensional periodic vibration under the action of the vortex shedding force, so that the purpose of heat exchange enhancement is achieved. Meanwhile, the shell-side fluid in the first channel enters a second channel formed by the two second partition plates 6 from the bottom of the shell through the notches of the second partition plates 6, and then enters a third channel formed by the second partition plates 6 and the first partition plates 5 from the top of the shell through the notches of the second partition plates 6, and the shell-side fluid is returned to the shell-side outlet 21. The tube-side fluid flows into the bundle assembly 4 from the tube-side inlet 12, through each of the straight tubes 41, and out the tube-side outlet 22. Finally, the purpose of strengthening heat exchange by vortex-induced vibration is realized, and the requirement on the fatigue life can be met. The heat exchanger of this embodiment can realize the great amplitude of elasticity tube bank to improve heat exchange efficiency greatly, but not influence fatigue life, can improve energy utilization greatly, reduce the heat exchanger cost, have wide economy and application prospect.
In the case that the embodiments are not contradictory, at least some of the technical solutions in the embodiments may be recombined to form the essential technical solution of the present invention, and of course, the embodiments may also be cited or included in each other. Further, it should be noted that modifications and adaptations made by those skilled in the art when recombining technical means described in the respective embodiments will also fall within the scope of the present invention.
The technical principles of the present invention have been described above in connection with specific embodiments, but it should be noted that the above descriptions are only for the purpose of explaining the principles of the present invention, and should not be construed as specifically limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will appreciate that other embodiments of the present invention or equivalents thereof without inventive step, are also within the scope of the present invention.

Claims (8)

1. The utility model provides an elastic joint straight tube heat exchanger, includes the casing, its characterized in that: install the tube bank subassembly in the casing, the tube bank subassembly includes the straight tube that extends along casing axis direction and installs the elastic joint at the straight tube both ends, be equipped with the baffle just along the axis direction in the casing the axis of baffle intersects with the axis of casing, and an at least baffle is equipped with the breach, casing perpendicular to axis direction is equipped with shell side import and shell side export.
2. An elastic joint straight tube heat exchanger as claimed in claim 1, wherein: the baffle is including being located the first baffle that is close to the casing tip and the second baffle that is located the casing middle part, first baffle and second baffle all are equipped with the baffle connecting hole.
3. An elastic joint straight tube heat exchanger as claimed in claim 2, wherein: the connecting pipe is installed to the baffle connecting hole, the at least one end of connecting pipe is located outside the baffle connecting hole and can dismantle with elastic joint and be connected.
4. A flexible joint straight tube heat exchanger as claimed in claim 3, wherein: the connecting pipe is step-shaped, and the connecting pipe includes consecutive first connection face, second connection face and third connection face, second connection face is greater than first connection face and third connection face at radial ascending thickness.
5. An elastic joint straight tube heat exchanger as claimed in claim 2, wherein: the second baffle is provided with a notch, and the notch is positioned at a position close to the edge of the second baffle.
6. An elastic joint straight tube heat exchanger as claimed in claim 5, wherein: the number of the second partition plates is at least two, and the gaps of the adjacent second partition plates are arranged in a staggered mode in the direction perpendicular to the axis of the shell.
7. An elastic joint straight tube heat exchanger as claimed in any one of claims 1 to 6, wherein: the elastic joint comprises a flexible joint and a spring arranged on the flexible joint, one end of the flexible joint is detachably connected with the end part of the straight pipe, and the other end of the flexible joint is detachably connected with the connecting pipe.
8. An elastic joint straight tube heat exchanger as claimed in claim 1, wherein: the shell comprises an upper shell and a lower shell which are fixedly connected through bolts, partition plate grooves are formed in the upper shell and the lower shell, a shell pass inlet is located in the upper shell, and a shell pass outlet is located in the lower shell.
CN202011424411.5A 2020-12-08 2020-12-08 Elastic joint straight pipe heat exchanger Active CN112432525B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202011424411.5A CN112432525B (en) 2020-12-08 2020-12-08 Elastic joint straight pipe heat exchanger
NL2027260A NL2027260B1 (en) 2020-12-08 2021-01-04 Straight tube heat exchanger with elastic joints technical field
LU102413A LU102413B1 (en) 2020-12-08 2021-01-15 Straight tube heat exchanger with elastic joints

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011424411.5A CN112432525B (en) 2020-12-08 2020-12-08 Elastic joint straight pipe heat exchanger

Publications (2)

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CN112432525A true CN112432525A (en) 2021-03-02
CN112432525B CN112432525B (en) 2022-08-09

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CN (1) CN112432525B (en)
LU (1) LU102413B1 (en)
NL (1) NL2027260B1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB154491A (en) * 1920-02-14 1920-12-02 Alfred Edwin Hughes Improvements in or relating to radiator and like tubes
GB350284A (en) * 1930-07-10 1931-06-11 Charles Henry Hughes Improvements in or relating to detachable tubes for radiators and the like
DE3020409A1 (en) * 1979-06-14 1980-12-18 Neotecha Ag Heat exchanger with spiral windings around vertical exchanger tubes - has springs holding tubes down inside spring-loaded outer tubes
CN101266106A (en) * 2008-05-09 2008-09-17 山东大学 Spatially spiral elasticity-intensified heat exchange tube bundle and its supporting device
CN102607302A (en) * 2012-03-31 2012-07-25 邓浩 Anti-extending tube type shell and tube heat exchanger
CN106288874A (en) * 2016-07-29 2017-01-04 科洋环境工程（上海）有限公司 Heat exchanger
CN106288909A (en) * 2016-08-09 2017-01-04 齐鲁工业大学 A kind of plane inflection type elasticity-intensified heat exchange tube bundle and heat exchanger
CN211317040U (en) * 2019-12-06 2020-08-21 无锡市德利达换热器制造有限公司 Spiral finned tube

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB154491A (en) * 1920-02-14 1920-12-02 Alfred Edwin Hughes Improvements in or relating to radiator and like tubes
GB350284A (en) * 1930-07-10 1931-06-11 Charles Henry Hughes Improvements in or relating to detachable tubes for radiators and the like
DE3020409A1 (en) * 1979-06-14 1980-12-18 Neotecha Ag Heat exchanger with spiral windings around vertical exchanger tubes - has springs holding tubes down inside spring-loaded outer tubes
CN101266106A (en) * 2008-05-09 2008-09-17 山东大学 Spatially spiral elasticity-intensified heat exchange tube bundle and its supporting device
CN102607302A (en) * 2012-03-31 2012-07-25 邓浩 Anti-extending tube type shell and tube heat exchanger
CN106288874A (en) * 2016-07-29 2017-01-04 科洋环境工程（上海）有限公司 Heat exchanger
CN106288909A (en) * 2016-08-09 2017-01-04 齐鲁工业大学 A kind of plane inflection type elasticity-intensified heat exchange tube bundle and heat exchanger
CN211317040U (en) * 2019-12-06 2020-08-21 无锡市德利达换热器制造有限公司 Spiral finned tube

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Publication number Publication date
CN112432525B (en) 2022-08-09
LU102413B1 (en) 2021-08-03
NL2027260B1 (en) 2022-07-07

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PB01 Publication
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SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20210302

Assignee: Shandong taineng heating equipment Co.,Ltd.

Assignor: Qilu University of Technology

Contract record no.: X2023370000021

Denomination of invention: A type of elastic joint straight tube heat exchanger

Granted publication date: 20220809

License type: Common License

Record date: 20231129

EE01 Entry into force of recordation of patent licensing contract