LU102099B1 - Miniature spiral wound elastic tube heat exchanger - Google Patents
Miniature spiral wound elastic tube heat exchanger Download PDFInfo
- Publication number
- LU102099B1 LU102099B1 LU102099A LU102099A LU102099B1 LU 102099 B1 LU102099 B1 LU 102099B1 LU 102099 A LU102099 A LU 102099A LU 102099 A LU102099 A LU 102099A LU 102099 B1 LU102099 B1 LU 102099B1
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- LU
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- Prior art keywords
- tube
- heat exchanger
- discharge tubes
- discharge
- spiral wound
- Prior art date
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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
- F28D7/02—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
- F28D7/024—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 the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
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- 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
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
- F28F2210/10—Particular layout, e.g. for uniform temperature distribution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2230/00—Sealing means
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- 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 present invention relates to a miniature spiral wound elastic tube heat exchanger, including sealing heads, outer discharge tubes, middle discharge tubes, inner discharge tubes, a barrel body, flanges, gaskets, tube plates, and a connecting tube. The inner discharge tubes, the middle discharge tubes, and the outer discharge tubes are uniformly and fixedly connected to the tube plates along a circumferential direction. The barrel body is fixedly connected between a front tube plate and a rear tube plate. A front sealing head and a rear sealing head are respectively and fixedly connected to the front tube plate and the rear tube plate, and a gasket is arranged between each tube plate and the corresponding sealing head. Each discharge tube bundle is made of copper tubes and of a spiral tubular structure. Spiral directions of two adjacent rows of tube bundles are opposite. Quantities of spiral turns of the discharge tube bundles increase sequentially from outside to inside, so that vibration of the tube bundles can be induced with a shell side fluid to enhance heat exchange, reduce scale on a heat transfer surface and noise, and further increase the service life. A single-row/array combined mounting of a plurality of heat exchangers can be implemented by using the flanges arranged on outlets and inlets and the connecting tube thereof, and flexible assembly and disassembly can be performed according to an actual situation.
Description
P100569LU00 1 MINIATURE SPIRAL WOUND ELASTIC TUBE HEAT 10102098
BACKGROUND Technical Field The present invention relates to the field of heat exchanger design technologies, and in particular, to a miniature spiral wound elastic tube heat exchanger. Related Art A heat exchanger is an energy-efficient device for transferring heat between two or more fluids with different temperatures, allowing heat to be transferred from a fluid with a higher temperature to a fluid with a lower temperature, so that a fluid temperature reaches a target specified in a process to meet a requirement of a process condition. In addition, the heat exchanger is also one of major devices for improving an energy utilization rate and is widely used in petroleum, chemical engineering, nuclear power, refrigeration, and other industrial fields.
Using a plurality of stainless steel straight tubes as internal heat transfer elements, a | conventional shell and tube heat exchanger has a large overall structure size and a low assembly flexibility. Using a single stainless steel straight tube as an internal heat transfer element, a conventional double-pipe heat exchanger has a simple structure and low heat exchanging efficiency. Given that fluid-induced vibration of the internal heat transfer element of the heat exchanger leads to fatigue damage, it is not always effective to prevent the vibration and avoid the damage by using a method of increasing strength of a rigid tube bundle. An elastic tube bundle heat exchanger uses an elastic heat transfer element (a red copper tube) instead of a conventional rigid element (a stainless steel tube), makes full use of fluid-induced vibration of the elastic heat transfer element to enhance the heat transfer, and has obvious advantages in preventing tube bundle damage, reducing noise, and automatic descaling. However, a heat transfer enhancement effect of such an elastic tube bundle heat exchanger is not obvious due to limitations of an internal tube bundle arrangement and an overall size, and flexibility of using a plurality of heat exchanger in combinations is low. Based on the above problems, the heat exchanger cannot meet the requirements of high efficiency and flexibility.
SUMMARY To resolve the problems in a practical engineering application of the existing tube heat exchanger, the present invention provides a miniature spiral wound elastic tube heat Ce ————————————
P100569LU00 2 exchanger. LUT02099 The present invention is achieved through the following technical solutions: A miniature spiral wound elastic tube heat exchanger includes sealing heads, outer discharge tubes, middle discharge tubes, inner discharge tubes, a barrel body, flanges, gaskets, tube plates, and a connecting tube. The outer discharge tubes, the middle discharge tubes, and the inner discharge tubes are uniformly and fixedly connected to a front tube plate and a rear tube plate along a circumferential direction. The barrel body is fixedly connected between the front tube plate and the rear tube plate. A front sealing head and a rear sealing head are respectively and fixedly connected to the front tube plate and the rear tube plate, and the gaskets are arranged between the tube plates and the sealing heads. A single-row/array combined mounting of a plurality of heat exchangers may be implemented by using the flanges arranged on outlets and inlets and the connecting tube.
In a preferred technical solution of the present invention, the inner discharge tube, the middle discharge tube, and the outer discharge tube are each of a spiral tubular structure.
In a preferred technical solution of the present invention, the inner discharge tube, the middle discharge tube, and the outer discharge tube are each a red copper tube.
In a preferred technical solution of the present invention, spiral directions of the outer discharge tube and the middle discharge tube are opposite, and spiral directions of the middle discharge tube and the inner discharge tube are opposite, that is, spiral directions of two adjacent rows of tube bundles are opposite.
In a preferred technical solution of the present invention, quantities of spiral turns of the outer discharge tube, the middle discharge tube, and the inner discharge tube increase sequentially.
In a preferred technical solution of the present invention, quantities of the outer discharge tubes, the middle discharge tubes, and the inner discharge tubes distributed in a circumferential direction decrease sequentially.
In a preferred technical solution of the present invention, the miniature spiral wound elastic tube heat exchanger can implement a single-row/array combined mounting of a plurality of heat exchangers in a plane by fixedly connecting the flanges on outlets and inlets.
When used on site, the miniature spiral wound elastic tube heat exchanger needs to | | be subjected to a pressure test and an air tightness test before mounting. During heat exchange, a cooling medium enters from a tube opening of the sealing head and flows in —_"—"——""—"——————
P100569LU00 3 the outer discharge tube, the middle discharge tube, and the inner discharge tube, and this 7102099 path is referred to as a tube side. A heating medium flows in a gap between the barrel body and the outer discharge tube, the middle discharge tube, and the inner discharge tube, and this path is referred to as a shell side. The miniature spiral wound elastic tube heat exchanger is mounted horizontally. According to an actual heat exchange requirement, a single-row/array combined mounting of a plurality of heat exchangers is implemented by fixedly connecting the flanges on outlets and inlets to the connecting tube. During opening, a tube side inlet is opened first, then a tube side outlet is opened, so that the cooling medium fills the tube side. Subsequently, a shell side outlet is opened, and then a shell side inlet is opened, so that the heating medium flows in the shell side, so as to achieve a heat exchange effect. When the heating medium cools down to a certain degree, the shell side inlet, the shell side outlet, the tube side inlet, and the tube side outlet are closed. Compared with the prior art, the present invention has the following beneficial effects: The tube bundles of the present invention are made of red copper tubes. As an elastic material, the red copper tube can enhance heat exchange and reduce noise and scale on a heat transfer surface by inducing vibration of the tube bundles with a shell side fluid, and can further increase a service life. As a spiral tube is used instead of a straight tube, the fluid forms a secondary flow in the spiral tube, thereby enhancing heat transfer. A turbulent characteristic of the shell side fluid is increased by setting two adjacent rows of tube bundles with opposite spiral directions, thereby enhancing heat transfer. Vibration intensity of each row of tube bundles is consistent by setting quantities of spiral turns to increase from outside to inside. A single-row/array combined mounting of a plurality of heat exchangers can be implemented, and flexible assembly and disassembly can be performed according to an actual situation by using the flanges arranged on outlets and inlets and the connecting tube.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural diagram according to the present invention. FIG. 2 is a cross-sectional view along A-A in FIG. 1. FIG. 3 is a schematic structural diagram of a plurality of combined mountings { according to the present invention. In the figures: 1-sealing head, 2-outer discharge tube, 3-middle discharge tube, 4-inner discharge tube, 5-barrel body, 6-flange, 7-gasket, 8-tube plate, 9-connecting tube, 10-miniature spiral wound elastic tube heat exchanger. dd
P100569LU00 4 DETAILED DESCRIPTION 1106009 The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention.
Apparently, the described embodiments are some of rather than all of the embodiments of the present invention.
All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative effects shall fall within the protection scope of the present invention.
Refer to FIG. 1, FIG. 2, and FIG. 3. FIG. 1 is a schematic structural diagram according to the present invention.
FIG. 2 is a cross-sectional view along A-A in FIG. 1. FIG. 3 is a schematic structural diagram of a plurality of combined mountings according to the present invention.
A miniature spiral wound elastic tube heat exchanger includes outer discharge tubes 2, middle discharge tubes 3, and inner discharge tubes 4. Tube openings at two ends of each of the outer discharge tubes 2 are fixedly connected to circumferential holes distributed on an outermost layer of tube plates 8 at two ends uniformly and equidistantly along a circumferential direction.
Tube openings at two ends of each of the middle discharge tube 3 are fixedly connected to circumferential holes distributed on a middle layer of the tube plates 8 at two ends uniformly and equidistantly along the circumferential direction.
Tube openings at two ends of each of the inner discharge tube 4 are fixedly connected to circumferential holes distributed on an innermost layer of the tube plates 8 at two ends uniformly and equidistantly along the circumferential direction.
The tube plate 8 is fixedly connected to a barrel body 5 and a sealing head 1. A sealing gasket 7 is arranged between the tube plate 8 and the sealing head 1, helping improve sealing performance.
During a single-row/array combined mounting of the miniature spiral wound elastic tube heat exchanger, a flange 6 is arranged on each of a tube opening of the sealing head 1 and a tube opening of the barrel body 5 of the miniature spiral wound elastic tube heat exchanger 10. The flange 6 mounted on the tube opening of the sealing head 1 is fixedly connected to a flange 6 mounted on a tube opening at one end of a connecting tube 9. A flange 6 mounted on a tube opening at the other end of the connecting tube 9 is fixedly connected to a flange 6 mounted on a tube opening of a sealing head 1 of another miniature spiral wound elastic tube heat exchanger 10. The flange 6 mounted on the tube opening of the barrel body 5 of the miniature spiral wound elastic tube heat exchanger 10
P100569LU00 is fixedly connected to a flange 6 mounted on a tube opening of a barrel body 5 of another 05999 miniature spiral wound elastic tube heat exchanger 10.
The outer discharge tube 2, the middle discharge tube 3, and the inner discharge tube 4 are each of a spiral tubular structure and a red copper tube.
5 Spiral directions of the outer discharge tube 2 and the middle discharge tube 3 are opposite, and spiral directions of the middle discharge tube 3 and the inner discharge tube 4 are opposite, that is, spiral directions of two adjacent rows of tube bundles are opposite.
Quantities of spiral turns of the outer discharge tube 2, the middle discharge tube 3 and the inner discharge tube 4 increase sequentially and quantities of the outer discharge tubes 2, the middle discharge tubes 3, and the inner discharge tubes 4 distributed in a circumferential direction decrease sequentially.
The miniature spiral wound elastic tube heat exchanger 10 can implement a single-row/array combined mounting of a plurality of heat exchangers in a horizontal plane by fixedly connecting the flanges 6 on outlets and inlets to the connecting tube 9.
When used on site, the miniature spiral wound elastic tube heat exchanger 10 needs to be subjected to a pressure test and an air tightness test before mounting. During heat exchange, a cooling medium enters from a tube opening of the sealing head 1 and flows in the outer discharge tube 2, the middle discharge tube 3, and the inner discharge tube 4, and this path is referred to as a tube side. A heating medium flows in a gap between the barrel body 5 and the outer discharge tube 2, the middle discharge tube 3, and the inner discharge tube 4, and this path is referred to as a shell side. A tube bundle structure used in the present invention can enhance heat exchange, reduce scale on a heat transfer surface and noise, and further increase a service life. The miniature spiral wound elastic tube heat exchanger 10 is mounted horizontally. According to an actual heat exchange requirement, a single-row/array combined mounting of a plurality of heat exchangers is implemented by fixedly connecting the flanges 6 on outlets and inlets to the connecting tube 9. During opening, a tube side inlet is opened first, and then a tube side outlet is opened, so that the cooling medium fills the tube side. Subsequently, a shell side outlet is opened, and then a shell side inlet is opened, so that the heating medium flows in the shell side, so as to achieve a heat exchange effect. When the heating medium cools down to a certain degree, the shell side inlet, the shell side outlet, the tube side inlet, and the tube side outlet are closed.
It is apparent to a person skilled in the art that the present invention is not limited to details in the foregoing exemplary embodiments, and the present invention can be
P100569LU00 6 implemented in another specific form without departing from the spirit or basic features 17106008 of the present invention.
Therefore, the embodiments should be considered to be exemplary in all respects and not limitative.
The scope of the present invention is not defined by the foregoing description but by the appended claims.
The present invention is intended to include all the variations that are equivalent in significance and scope to the claims.
No reference numerals in the claims should be considered as limitations to the related claims.
In addition, it should be understood that, although this specification is described according to each implementation, each implementation may not include only one independent technical solution.
The description manner of this specification is merely for clarity.
This specification should be considered as a whole by a person skilled in the art, and the technical solution in each embodiment may also be properly combined, to form other implementations that can be understood by a person skilled in the art.
Claims (7)
1. À miniature spiral wound elastic tube heat exchanger, comprising: sealing heads (1), outer discharge tubes (2), middle discharge tubes (3), inner discharge tubes (4), a barrel body (5), flanges (6), gaskets (7), tube plates (8), and a connecting tube (9), wherein the outer discharge tubes (2), the middle discharge tubes (3), and the inner discharge tubes (4) are uniformly and fixedly connected to the tube plates (8) along a circumferential direction; the barrel body (5) is fixedly connected between a front tube plate (8) and a rear tube plate (8); a front sealing head (1) and a rear sealing head (1) are respectively and fixedly connected to the front tube plate (8) and the rear tube plate (8), and the gaskets (7) are arranged between the tube plates (8) and the sealing heads (1).
2. The miniature spiral wound elastic tube heat exchanger according to claim 1, wherein the outer discharge tube (2), the middle discharge tube (3), and the inner discharge tube (4) are each of a spiral tubular structure.
3. The miniature spiral wound elastic tube heat exchanger according to claim 1, wherein the outer discharge tube (2), the middle discharge tube (3), and the inner discharge tube (4) are each a red copper tube.
4. The miniature spiral wound clastic tube heat exchanger according to claim 1, wherein spiral directions of the outer discharge tube (2) and the middle discharge tube (3) are opposite, and spiral directions of the middle discharge tube (3) and the inner discharge tube (4) are opposite, that is, spiral directions of two adjacent rows of tube bundles are opposite.
5 The miniature spiral wound elastic tube heat exchanger according to claim 1, wherein quantities of spiral turns of the outer discharge tube (2), the middle discharge tube (3), and the inner discharge tube (4) increase sequentially.
6. The miniature spiral wound clastic tube heat exchanger according to claim 1, wherein quantities of the outer discharge tubes (2), the middle discharge tubes (3), and the inner discharge tubes (4) distributed in the circumferential direction decrease sequentially.
7. The miniature spiral wound elastic tube heat exchanger according to claim 1, wherein a single-row/array combined mounting of a plurality of heat exchangers is implemented by fixedly connecting the flanges (6) mounted on outlets and inlets to the connecting tube (9).
ce ———EEEEEEE
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910963480.4A CN110553520A (en) | 2019-10-11 | 2019-10-11 | Small-size spiral winding elasticity tubular heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU102099B1 true LU102099B1 (en) | 2021-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU102099A LU102099B1 (en) | 2019-10-11 | 2020-10-01 | Miniature spiral wound elastic tube heat exchanger |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110553520A (en) |
| LU (1) | LU102099B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412693B (en) * | 2020-03-30 | 2021-04-09 | 浙江大学 | New energy battery heat pump air conditioner heat exchanger and processing equipment thereof |
| CN113237359A (en) * | 2021-05-31 | 2021-08-10 | 安徽理工大学 | Spiral baffling wound copper pipe heat exchange device |
| CN114353389B (en) * | 2022-01-14 | 2023-08-22 | 安徽理工大学 | Spiral floating evaporator with self-vibration function |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2190276Y (en) * | 1994-04-19 | 1995-02-22 | 刘少怀 | spiral vibration high-efficiency heat exchanger |
| CN103335542B (en) * | 2013-06-18 | 2015-03-11 | 山东豪迈机械制造有限公司 | Helical wound tube half-floating heat exchanger |
| CN203848724U (en) * | 2014-05-29 | 2014-09-24 | 山东诺为工业设备有限公司 | Novel heat exchanger |
| CN210638549U (en) * | 2019-10-11 | 2020-05-29 | 安徽理工大学 | Small-size spiral winding elasticity tubular heat exchanger |
-
2019
- 2019-10-11 CN CN201910963480.4A patent/CN110553520A/en active Pending
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2020
- 2020-10-01 LU LU102099A patent/LU102099B1/en active IP Right Grant
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| Publication number | Publication date |
|---|---|
| CN110553520A (en) | 2019-12-10 |
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| FG | Patent granted |
Effective date: 20210401 |