CN201434621Y - Multiple spiral flow shell and tube heat exchanger for fluid outside heat transfer tubes - Google Patents

Multiple spiral flow shell and tube heat exchanger for fluid outside heat transfer tubes Download PDF

Info

Publication number
CN201434621Y
CN201434621Y CN 200920033888 CN200920033888U CN201434621Y CN 201434621 Y CN201434621 Y CN 201434621Y CN 200920033888 CN200920033888 CN 200920033888 CN 200920033888 U CN200920033888 U CN 200920033888U CN 201434621 Y CN201434621 Y CN 201434621Y
Authority
CN
China
Prior art keywords
tube
shell
heat
fin
heat transfer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200920033888
Other languages
Chinese (zh)
Inventor
吴峰
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.)
Xian Shiyou University
Original Assignee
Xian Shiyou University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian Shiyou University filed Critical Xian Shiyou University
Priority to CN 200920033888 priority Critical patent/CN201434621Y/en
Application granted granted Critical
Publication of CN201434621Y publication Critical patent/CN201434621Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model discloses a multiple spiral flow shell and tube heat exchanger for fluid outside heat transfer tubes, which comprises the following components: a shell that is closed through a leftend enclosure and a right end enclosure, a shell-side inlet and a shell-side output provided on the side wall of the shell, two tube plates which are respectively provided at two inner ends of the shell; a tube-side inlet and a tube-side outlet provided on the end enclosures, and a heat transfer tube bundle which is composed of a plurality of heat transfer tubes that are equipped between two tubeplates in parallel, wherein the tube plates are provided with a plurality of through holes for equipping the plurality of heat transfer tubes. Each heat transfer tube comprises an outer tube and an inner tube which are sleeved concentrically, and an inner fin which is provided between the outer tube and the inner tube and is embedded around the tube core. The heat transfer tubes are communicated with the tube-side inlet and the tube-side outlet for forming an inner-tube circulation channel. Longitudinal spiral outer fins are provided outside the heat transfer tubes. The longitudinal spiral outer fins are communicated with the shell-side inlet and the shell-side outlet for forming a plurality of spiral shell-side communication channels. The multiple spiral flow shell and tube heat exchangerfor fluid outside heat transfer tubes provided by the utility model has a simple and rational structure and convenient operation. While the integrated heat transfer performance of the fluid outside and inside the heat transfer tubes is optimized, the flowing resistance and scaling phenomena outside and inside the heat transfer tubes can be effectively reduced.

Description

Multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube
Technical field
The utility model relates to a kind of shell and tube exchanger, especially relates to a kind of multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube.
Background technology
In industry such as oil refining, chemical industry, environmental protection, the energy, electric power, heat exchanger is a kind of important unit, and in the construction in chemical plant, heat exchanger accounts for the 10-20% of gross investment usually; Especially in the construction of oil plant, heat exchanger accounts for the 35-40% of whole technological equipment investment.Wherein, shell-and-tube heat exchanger accounts for 37% of world's heat exchanger market total value again.In shell-and-tube heat exchanger, a kind of fluid flows in pipe, and one other fluid flows at shell-side, and carries out exchange heat by pipe.Simultaneously, shell-side is furnished with deflection plate, and deflection plate is that pipe provides support, also make simultaneously fluid by specific channel flow to improve its heat-transfer character.
There are a lot of problems in tradition bow type deflection plate: 1. bow type deflection plate makes fluid vertical impact shell wall side, causes bigger along the journey pressure drop; 2. deflection plate and shell wall side joint produce the stagnation dead band of flowing, and have reduced heat exchange efficiency, and fouling easily; 3. there is leakage current between deflection plate and the shell wall side and between heat-transfer pipe and the deflection plate, make shell-side exist bigger bypass to flow, and by-pass flow and leakage current reduced the mass flow of effective cross-flow tube bank, so reduced the heat exchange efficiency of shell-side; 4. the high flow rate fluid is horizontal plunders the vibration that heating surface bank can be induced heat-transfer pipe, has shortened the life-span of heat exchanger.
Existing cooperative reinforcing heat transfer theory points out that the main path that obtains high convective heat-transfer coefficient has two kinds: (1) improves the uniformity in fluid velocity field and temperature field; (2) angle of change velocity and hot-fluid vector makes the direction of two vectors consistent as far as possible.Therefore, opposite with hot-fluid direction vector direction and (it is the strongest when direction is opposite to be that fluid is heated degree on unified straight line the time when the velocity direction; Be the strongest when direction is identical) by fluid cooling degree, the convection heat transfer' heat-transfer by convection concertedness of this moment is best, the heat transfer coefficient maximum, promptly in the convection heat transfer' heat-transfer by convection process, fluid vertically washes away in some way or when vertically washing away solid wall surface (managing to make that velocity vector and heat flow density vector are on same straight line), can improve convective heat-transfer coefficient effectively, and extreme example is a jet impulse, have very strong heat-transfer effect, but flow resistance has also reached maximum simultaneously.Based on the collaborative thought in field, can effectively reduce the increase of flow resistance when considering augmentation of heat transfer, should manage to find a kind of type of flow, realize the best results that the convection heat transfer' heat-transfer by convection field is collaborative.The screw movement of fluid can overcome the above problems preferably, realizes flowing and periodically washes away solid wall surface with certain angle, strengthens convection heat transfer' heat-transfer by convection, can effectively reduce the increase of its flow resistance simultaneously again.
The sixties in 20th century, based on the improvement to shell and tube exchanger shell fluid liquid form, existing scholar has proposed the thought of spiral baffle heat exchanger.Spiral baffle heat exchanger is that arrangement of baffles is become approximate helicoid, makes shell fluid in the heat exchanger be continuous helical form and flows, to realize reducing effectively the flow resistance of shell-side and the purpose of augmentation of heat transfer.In addition, it is crucial equally to develop new and effective enhanced heat transfer component in the energy-efficient problem that realizes heat exchanger, and the research of enhanced heat transfer component is the basis that new and effective heat transmission equipment manufactures and designs.Therefore, appropriate design development of new high-performance heat exchanger realizes that simultaneously shell-tube type heat exchange shell-side and pipe side are heat conduction reinforced, can effectively reduce flow resistance and scale formation again, and the whole heat exchange property that improves heat exchanger is for energy-saving and cost-reducing significant.
Yet what existing helical baffles adopted mostly is discontinuous approximate spiral camber.The deflection plate of discontinuous spiral baffle heat exchanger generally is made up of two to four fan-shaped flat boards, the result often greatly differs from each other with real spiral camber, generally there is the trigonum in two segmental baffle lap-joints, serious leakage current problem is arranged, cause heat exchanger shell-side flow resistance to increase, also influence the heat exchange property of heat exchanger.At above problem, existing relevant patent solves, and proposed the Design Conception of continuous helical deflecting plate heat exchanger, but its processing technology has certain degree of difficulty, and the dismounting of monoblock type continuous helical deflecting plate heat exchanger and cleaning have certain degree of difficulty equally.In addition, because the water conservancy diversion of continuous helical deflecting plate, shell fluid is being carried out the monoblock type screw, thereby cause the mutual blending effect of its shell fluid inside not strong, the convection heat transfer' heat-transfer by convection of its shell fluid awaits further to improve, therefore, be necessary to design a kind of novel shell and tube exchanger, on the basis that keeps the motion of shell fluid continuously spiral, make it be easy to disassembly, cleaning, and in order to guarantee to manage the complex heat transfer characteristic that interior outer fluid all possesses efficient low-resistance, tube fluid is necessary also to realize that the longitudinal spiral formula flows.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube is provided, it is simple and reasonable and use easy to operate, in optimizing heat-transfer pipe, in the complex heat transfer performance of outer fluid, can effectively reduce heat-transfer pipe inside and outside flow resistance and scale formation again.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube, comprise the housing that seals by two ends, left and right sides end socket, be arranged on shell side import and shell side outlet on the housing sidewall, lay respectively at the enclosure interior two ends two tube sheets, be arranged on tube side import on the described end socket and tube side outlet and a plurality ofly be installed in parallel in the heating surface bank that two heat-transfer pipes between tube sheet are formed, have a plurality of through holes of installing for heat-transfer pipe on the described tube sheet; Described heat-transfer pipe comprise the outer tube that wears with one heart and core pipe and at the two spaced winding tube core around the inner fin that is embedded, described heat-transfer pipe is communicated with tube side import and tube side outlet and forms circulation passage in the pipe, it is characterized in that: described heat-transfer pipe is outside equipped with the outer fin of longitudinal spiral, and the outer fin of described longitudinal spiral is communicated with shell side import and shell side outlet and forms spiral shell-side circulation passage.
The outer fin of the outer set longitudinal spiral of described a plurality of heat-transfer pipe is over against arranging or being staggered.
Described inner fin is formed by the bending of ripple inner fin plate and it forms a columned longitudinal spiral formula internally finned tube between outer tube and core pipe, is distributed with a plurality of longitudinal spiral formula circulation passages on the described longitudinal spiral formula internally finned tube.
The cross section bellows-shaped of the outer fin of described longitudinal spiral is rectangle, triangle or trapezoidal.
Have a plurality of holes or many seams continuously on the outer fin of described longitudinal spiral.
The lines and the angle between horizontal direction of described ripple inner fin Lamb wave line are α, wherein 15 °≤α≤85 °; The bellows-shaped of described ripple is the consecutive periods function, and its vertical panel height equates with spacing between outer tube and the core pipe;
The dielectric viscosity that is circulated in the described inner fin is big more, and the ripple of described ripple inner fin plate is sparse more, and the wavelength X of described ripple is big more, and the quantity of described longitudinal spiral formula circulation passage is few more, and α is big more.
The ripple of described ripple inner fin plate is zigzag, rectangle or sinusoidal waveform.
The utility model compared with prior art has the following advantages:
1, rational in infrastructure, use easy to operate.
2, heat-transfer pipe adopts the heat-transfer pipe that is provided with inside and outside longitudinal spiral fin, can increase the intraductal heat transfer area effectively, improves the field synergistic fruit of the inside and outside convection heat transfer' heat-transfer by convection of pipe simultaneously, improves its complex heat transfer efficient; And omitted shell-side arc type deflection plate, make the structure of heat exchanger obtain simplification to a certain degree.
3, increase fin outside the longitudinal spiral in the heat-transfer pipe outside, thereby can realize spiral the flowing of multiply of shell fluid by the heating surface bank that inside and outside longitudinal spiral finned tube is formed, mutual blending effect when the enhancing shell fluid flows, make the spiral flush pipe inside and outside wall of mobile property performance period of outer fluid in the heat-transfer pipe, improve the inside and outside convection heat transfer' heat-transfer by convection field of pipe synergy, improve heat transfer efficiency, improve the overall efficiency that shell fluid flows and conducts heat thereby reach; Can effectively reduce simultaneously the increase of flow resistance, the diabatic process of the integral body of heat exchanging device has played certain optimization function; In addition, because heat-transfer pipe self has the outer fin of spiral stream guidance, compare and spiral baffle heat exchanger, complicated processing and mounting process that it has saved helical baffles are easy to dismounting and cleaning simultaneously.Thereby, the utility model is increasing the heat exchange area while of both sides inside and outside the heat-transfer pipe, complex optimum the convection heat transfer' heat-transfer by convection of outer fluid in the heat-transfer pipe, handled the contradiction between augmentation of heat transfer and the drag reduction well, make overall flow and the heat transfer efficiency of shell and tube exchanger reach the state of optimization.
4, relative pressure higher under higher absolute pressure or the malfunction can be born, heat exchanger generation spalling can be effectively prevented.
To sum up, the utility model can effectively increase the inside and outside heat exchange area of heat-transfer pipe, the inside and outside convection heat transfer' heat-transfer by convection of enhanced tube, effectively reduce the increase of flow resistance, have the higher high pressure ability of bearing simultaneously and make simple, advantages such as maintenance and cleaning are convenient and less scaling, particularly: the utility model is by the inside and outside device longitudinal spiral fin at the heat-transfer pipe light pipe, the helical flow of shell fluid is achieved by the guide functions of the outer fin of the longitudinal spiral on the heating surface bank, make shell fluid wash away heating surface bank with the form of multiply spiral flow, make shell fluid realize spiral mobile in, blending mutually again between each strand spiral flow has strengthened the diabatic process of shell fluid effectively.Be compared to traditional shell and tube exchanger, the existence of heat-transfer pipe internal and external screw fin can effectively increase the inside and outside heat transfer area of heat-transfer pipe, the double helix of realizing outer fluid in the heat-transfer pipe simultaneously flows, improve the field synergy of convection heat transfer' heat-transfer by convection, optimize the inside and outside complex heat transfer performance of heat-transfer pipe (heat transfer and flow resistance are taken into account), can effectively reduce the inside and outside scale formation of heat-transfer pipe on the other hand.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is an assembly structure schematic diagram of the present utility model.
Fig. 2 is the internal structure schematic diagram of the utility model heat exchanger core.
Fig. 3 is the utility model heat-transfer pipe external structure schematic diagram.
Fig. 4 adopts the overall structure schematic diagram of ripple inner fin plate for the utility model heat-transfer pipe.
Fig. 5 is the internal structure schematic diagram of the utility model heat-transfer pipe.
Fig. 6 is the heat-transfer pipe external structure schematic diagram of perforate on the outer fin of the utility model longitudinal spiral.
The heat-transfer pipe external structure schematic diagram of Fig. 7 for cracking on the outer fin of the utility model longitudinal spiral.
Description of reference numerals:
The 1-tube sheet; The 2-heat-transfer pipe; The outer fin of 3-longitudinal spiral;
The 4-through hole; The 5-housing; The 6-outer tube;
The 7-inner fin; 8-core pipe; The import of 10-1-tube side;
The outlet of 10-2-tube side; The import of 11-1-shell side; The outlet of 11-2-shell side;
The 12-hole; 13-left side end socket; The right end socket of 14-;
The 15-dividing plate; The 16-seam.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model comprises the housing 5 that seals by two ends, left and right sides end socket, be arranged on shell side import 11-1 and shell side outlet 11-2 on housing 5 sidewalls, lay respectively at housing 5 inner two ends two tube sheets 1, be arranged on the heating surface bank that tube side import 10-1 on the described end socket and tube side outlet 10-2 and a plurality of heat-transfer pipe 2 that is installed in parallel in 1 of two tube sheet form.Have a plurality of through holes 4 on the described tube sheet 1 for heat-transfer pipe 2 installations.Described heat-transfer pipe 2 comprise the outer tube 6 that wears with one heart and core pipe 8 and at the two spaced winding tube core around the inner fin 7 that is embedded, described heat-transfer pipe 2 is communicated with tube side import 10-1 and tube side outlet 10-2 and forms the interior circulation passage of pipe.Described heat-transfer pipe 2 is outside equipped with the outer fin 3 of longitudinal spiral, and the outer fin 3 of described longitudinal spiral is communicated with shell side import 11-1 and shell side outlet 11-2 and forms spiral shell-side circulation passage.Two ends, described left and right sides end socket is left end socket 13 and right end socket 14.
Wherein, shell side import 11-1 and shell side outlet 11-2 lays respectively at the sidewall two ends of housing 5.Correspondingly on the described tube sheet 1 have a plurality of through holes 4 that pass for heat-transfer pipes 2, no seam welding and its parallel tube passage of a plurality of formation between two tube sheets 1 between heat-transfer pipe 2 outer walls and the through hole 4.In addition, housing 5 is columniform shell, seamlessly between the inwall of the periphery of two tube sheets 1 and housing 5 welds together.
In the present embodiment, shell side import 11-1 is positioned at the left end of housing 5 sidewalls, and shell side outlet 11-2 is positioned at the right-hand member of housing 5 sidewalls.In the practical work process, a kind of heat exchanging fluid enters from the shell side import 11-1 in left side, after outside the heat-transfer pipe 2 the spiral circulation passage that fin 3 is formed outside the longitudinal spiral being set, from the shell side outlet 11-2 outflow on right side.
During actual processing and fabricating, the outer fin 3 of described a plurality of heat-transfer pipes 2 outer set longitudinal spirals is for over against arranging or being staggered.The shape of cross section of the outer fin 3 of described a plurality of longitudinal spiral is rectangle, triangle or trapezoidal, during processing and fabricating, can be as required the cross section ripple of the outer fin 3 of longitudinal spiral be made as corresponding shape.In addition, have a plurality of holes 12 or many seams 16 on the outer fin 3 of described longitudinal spiral continuously, see Fig. 6 and Fig. 7 for details.In addition, when circulation dielectric viscosity when bigger, the outer fin 3 of longitudinal spiral adopts single-screw or double-spiral structures; And when the dielectric viscosity of circulation hour, then the outer fin 3 of longitudinal spiral can the many helical structures of corresponding employing.In the present embodiment, the outer fin 3 of longitudinal spiral is a single coil configuration.
In conjunction with Fig. 4, Fig. 5, described heat-transfer pipe 2 comprise the outer tube 6 that wears with one heart and core pipe 8 and at the two spaced winding tube core around the inner fin 7 that is embedded, its inner fin 7 is formed by the bending of ripple inner fin plate and form a columned longitudinal spiral formula internally finned tube between outer tube 6 and core pipe 8, is distributed with a plurality of longitudinal spiral formula circulation passages on the described longitudinal spiral formula internally finned tube.In addition, the lines and the angle between horizontal direction of ripple inner fin Lamb wave line are α, wherein 15 °≤α≤85 °; The bellows-shaped of described ripple is the consecutive periods function, and its vertical panel height equates with spacing between outer tube 6 and the core pipe 8, and adopts soldering to be connected between described inner fin 7 and outer tube 6 and the core pipe 8, and simultaneously, core pipe 8 is a blocked core-tube.In actual application, the dielectric viscosity that is circulated in the inner fin 7 is big more, and the ripple of described ripple inner fin plate is sparse more, and the wavelength X of described ripple is big more, and the quantity of longitudinal spiral formula circulation passage is few more, and α is big more.In the present embodiment, the ripple of ripple inner fin plate is a sinusoidal waveform, in the practice, can be other bellows-shaped such as zigzag or rectangle with the ripple processing and fabricating of ripple inner fin plate also.
In the present embodiment, it is on the right end socket 14 that tube side import 10-1 and tube side outlet 10-2 all are positioned at same end socket, be provided with a dividing plate 15 between the tube sheet 1 on right side and the right end socket 14, dividing plate 15 is horizontally set on the tube sheet 1 on right side and the center between the right end socket 14, and do not have seam welding between the inwall of the tube sheet 1 on dividing plate 15 and right side, right end socket 14 and housing 5, circulation passage was divided into two parts up and down in so corresponding tube side import 10-1 and tube side outlet 10-2 will manage.Wherein, tube side import 10-1 is positioned at a plurality of heat-transfer pipes 2 of the top of right end socket 14 and itself and dividing plate 15 tops and forms the upper tube circulation passages, be that circulation passage communicates with tube side import 10-1 in the upper tube, again because the outer fin 3 of the outer set longitudinal spirals of heat-transfer pipe 2 is spiral from left to right, then the inner fin 7 of a plurality of heat-transfer pipes 2 inside in the circulation passage is spiral from right to left in the upper tube, and itself and shell-side circulation passage are incorgruous spiral; Accordingly, tube side outlet 10-2 is positioned at a plurality of heat-transfer pipes 2 composition lower tube circulation passages of the bottom of right end socket 14 and itself and dividing plate 15 belows, be that circulation passage communicates with tube side outlet 10-2 in the lower tube, thereby the inner fin 7 of a plurality of heat-transfer pipes 2 inside in the circulation passage is spiral from left to right in the lower tube, and itself and shell-side circulation passage are spiral in the same way, to sum up, the interior circulation passage of circulation passage and lower tube is formed an interior circulation passage of two-tube-pass pipe of formula back and forth in its upper tube.In the actual application, another kind of heat exchanging fluid flows into from tube side import 10-1, and behind circulation passage in circulation passage in the upper tube and the lower tube, 10-2 flows out from the tube side outlet.Like this, circulation passage is formed an interior circulation passage of two-tube-pass pipe of formula back and forth in tube side import 10-1 and tube side outlet 10-2 and the upper and lower part pipe.
To sum up, in the present embodiment, heat exchanger is monoshell journey two-tube-pass heat exchanger and its structural design by outer fluid helical flow in the heat-transfer pipe 2, has realized the double helix motion of heat exchanger shell-side and tube fluid.
In the actual processing and making process, also tube side import 10-1 and tube side outlet 10-2 can be laid respectively on two end sockets at two ends, housing 5 left and right sides, specifically be that tube side import 10-1 is positioned on the right end socket 14, tube side outlet 10-2 is positioned on the left end socket 13, can form a monoshell journey single tube pass heat exchanger like this.
Equally, above-mentioned two heat exchangers can be in series, specifically be that the shell side import 11-1 with a heat exchanger is arranged on housing 5 left sides, and its shell side outlet 11-2 is arranged on housing 5 right sides; Accordingly, the shell side import 11-1 of another heat exchanger is arranged on housing 5 right sides, and its shell side outlet 11-2 is arranged on housing 5 left sides.That is to say that the shell side import 11-1 of first heat exchanger is the general import of shell-side heat exchanging fluid, the shell side outlet 11-2 of second heat exchanger is the general export of shell-side heat exchanging fluid; With the shell side import 11-1 of the shell side of first heat exchanger outlet 11-2 and second heat exchanger be connected, form a bivalve journey circulation passage of formula back and forth like this.。
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.

Claims (7)

1. multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube, comprise the housing (5) that seals by two ends, left and right sides end socket, be arranged on shell side import (11-1) and shell side outlet (11-2) on housing (5) sidewall, lay respectively at the inner two ends of housing (5) two tube sheets (1), be arranged on the heating surface bank that tube side import (10-1) on the described end socket and tube side outlet (10-2) and a plurality of heat-transfer pipe (2) that is installed in parallel between two tube sheets (1) are formed, have a plurality of through holes (4) that supply heat-transfer pipe (2) installation on the described tube sheet (1); Described heat-transfer pipe (2) comprise the outer tube (6) that wears with one heart and core pipe (8) and at the two spaced winding tube core around the inner fin that is embedded (7), described heat-transfer pipe (2) is communicated with tube side import (10-1) and tube side outlet (10-2) and forms circulation passage in the pipe, it is characterized in that: described heat-transfer pipe (2) is outside equipped with the outer fin (3) of longitudinal spiral, and the outer fin (3) of described longitudinal spiral is communicated with shell side import (11-1) and shell side outlet (11-2) and forms spiral shell-side circulation passage.
2. according to the described multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube of claim 1, it is characterized in that: the outer fin (3) of the outer set longitudinal spiral of described a plurality of heat-transfer pipes (2) is over against arranging or being staggered.
3. according to claim 1 or 2 described multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube, it is characterized in that: described inner fin (7) is formed by the bending of ripple inner fin plate and it forms a columned longitudinal spiral formula internally finned tube between outer tube (6) and core pipe (8), is distributed with a plurality of longitudinal spiral formula circulation passages on the described longitudinal spiral formula internally finned tube.
4. according to claim 1 or 2 described multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube, it is characterized in that: the shape of cross section of the outer fin (3) of described longitudinal spiral is rectangle, triangle or trapezoidal.
5. according to claim 1 or 2 described multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube, it is characterized in that: have a plurality of holes (12) or many seams (16) continuously on the outer fin (3) of described longitudinal spiral.
6. according to the described multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube of claim 3, it is characterized in that: the lines and the angle between horizontal direction of described ripple inner fin Lamb wave line are α, wherein 15 °≤α≤85 °; The bellows-shaped of described ripple is the consecutive periods function, and its vertical panel height equates with spacing between outer tube (6) and the core pipe (8);
The dielectric viscosity that is circulated in the described inner fin (7) is big more, and the ripple of described ripple inner fin plate is sparse more, and the wavelength X of described ripple is big more, and the quantity of described longitudinal spiral formula circulation passage is few more, and α is big more.
7. according to the described multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube of claim 3, it is characterized in that: the ripple of described ripple inner fin plate is zigzag, rectangle or sinusoidal waveform.
CN 200920033888 2009-07-14 2009-07-14 Multiple spiral flow shell and tube heat exchanger for fluid outside heat transfer tubes Expired - Fee Related CN201434621Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200920033888 CN201434621Y (en) 2009-07-14 2009-07-14 Multiple spiral flow shell and tube heat exchanger for fluid outside heat transfer tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200920033888 CN201434621Y (en) 2009-07-14 2009-07-14 Multiple spiral flow shell and tube heat exchanger for fluid outside heat transfer tubes

Publications (1)

Publication Number Publication Date
CN201434621Y true CN201434621Y (en) 2010-03-31

Family

ID=42053431

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200920033888 Expired - Fee Related CN201434621Y (en) 2009-07-14 2009-07-14 Multiple spiral flow shell and tube heat exchanger for fluid outside heat transfer tubes

Country Status (1)

Country Link
CN (1) CN201434621Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103363821A (en) * 2013-07-20 2013-10-23 太原理工大学 Tubular heat exchanger adopting rotating jet
CN103492821A (en) * 2011-04-21 2014-01-01 开利公司 Condenser/accumulator and systems and operation methods
WO2020048401A1 (en) * 2018-09-05 2020-03-12 上海发电设备成套设计研究院有限责任公司 Compact gas-gas heat exchange tube and manufacturing and use methods therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103492821A (en) * 2011-04-21 2014-01-01 开利公司 Condenser/accumulator and systems and operation methods
CN103492821B (en) * 2011-04-21 2016-05-18 开利公司 Condenser/liquid trap and system and method for operating
CN103363821A (en) * 2013-07-20 2013-10-23 太原理工大学 Tubular heat exchanger adopting rotating jet
WO2020048401A1 (en) * 2018-09-05 2020-03-12 上海发电设备成套设计研究院有限责任公司 Compact gas-gas heat exchange tube and manufacturing and use methods therefor

Similar Documents

Publication Publication Date Title
CN100434858C (en) Combined multi-shell spiral baffle plate shell-and-tube heat exchanger
CN200968787Y (en) Pipe shell type heat-exchanger
CN202018225U (en) Circular plate case type heat exchanger
CN200993548Y (en) U-shape tubular heat exchanger
CN201434621Y (en) Multiple spiral flow shell and tube heat exchanger for fluid outside heat transfer tubes
CN201449202U (en) Heat transferring element of longitudinal spiral fins assembled inside and outside heat transferring pipe
CN102252539B (en) Shell and tube heat exchanger
CN201187959Y (en) External diversion deflector rod type closed circulation water heat exchanger
CN201281561Y (en) Shell-pipe head exchanger by double helix flowing of fluid medium in or out of heat exchange tube
CN201449186U (en) Inner/outer spiral fin type cross-flow heat exchanger of heat transferring pipe
CN102252540B (en) Heat exchanger of Cantor set fractal structure type
CN101435668A (en) Internal and external fin flat tube heat exchanger
WO2011072470A1 (en) Coil and heat exchanger with the same
CN101650140A (en) Multi-strand spiral flow shell and tubular heat exchanger for fluid outside heat transfer tube
CN101363694A (en) Shell-pipe head exchanger by double helix flowing of fluid medium in or out of heat exchange tube
CN1140764C (en) Axial flow-type heat exchanger with convergent-divergent tube, full counterflow and dual shell passes and its heat-exchange method
CN201413066Y (en) Shell-and-tube helix flat tube heat exchanger
CN201382719Y (en) Heat exchanger with helical baffles
CN2901224Y (en) Non-continuous asymmetric corrugated tube heat exchanger
CN202216587U (en) Heat exchanger adopting oval flat spiral heat exchange tube
CN201926341U (en) I-shaped tree-type cross flow heat exchanger
CN201364053Y (en) Specially-shaped tube spiral baffling heat exchanger
CN206037803U (en) Petaloid heat exchange tube and whole circular orifice plate combination formula heat transfer component
CN104180691A (en) Tubular heat exchanger with regular gap twisted strips and ball protrusions
CN202630745U (en) Shell-and-tube type heat exchanger

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100331

Termination date: 20110714