CN107270741B - Multiple flow reduced pipe wound tube heat exchanger - Google Patents

Multiple flow reduced pipe wound tube heat exchanger Download PDF

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Publication number
CN107270741B
CN107270741B CN201710664032.5A CN201710664032A CN107270741B CN 107270741 B CN107270741 B CN 107270741B CN 201710664032 A CN201710664032 A CN 201710664032A CN 107270741 B CN107270741 B CN 107270741B
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China
Prior art keywords
tube
pipe
around
around pipe
shell
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CN201710664032.5A
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Chinese (zh)
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CN107270741A (en
Inventor
吴金星
王蕾
田倩卉
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LUOYANG LONGHUI PETROCHEMICAL ENGINEERING Co.,Ltd.
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Zhengzhou University
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements

Abstract

The present invention discloses a kind of multiple flow reduced pipe wound tube heat exchanger, including shell, bobbin carriage, tube sheet, core cylinder, around pipe, positioning strip, shell side inlet/outlet pipe, tube side inlet/outlet pipe, pass partition and hanging support, it is characterized by: for each layer outside core cylinder around pipe, all being alternately entwined around pipe by least two calibers, axial spacing of the same layer between pipe is positioned with positioning strip, adjacent ectonexine is identical around the helical angle of pipe and winding direction is opposite, all both ends around pipe are divided into two tube banks according to pipe diameter size, two of its every one end restrain two regions for being arranged in same tube sheet, and pass partition is set on tube sheet and in bobbin carriage and separates two regions, two tube banks of its every one end can also be arranged on two pieces of small tube sheets.The present invention realizes tube side a plurality of fluids and exchanges heat simultaneously with shell-side fluid, and by reducing being alternately arranged around pipe, increases the radial clearance between pipe, enhance the synthesis heat transfer effect of shell-side fluid.

Description

Multiple flow reduced pipe wound tube heat exchanger
Technical field
The present invention relates to shell-and-tube heat exchanger technical field, in particular to a kind of multiple flow reduced pipe wound tube heat exchanger.
Background technique
Heat exchanger occupies an important position in the energy, power, chemical industry, petroleum and other many industrial productions.It is changed around tubular type Hot device is a kind of compact-sized, higher shell-and-tube heat exchanger of heat exchange efficiency, mainly include bobbin carriage, tube sheet, shell, core cylinder and around The main parts sizes such as pipe, core cylinder are fixed on the center of both ends tube sheet, and as the support of winding tube bank, multilayer is wrapped in around pipe On the outside of core cylinder.
Existing wound tube heat exchanger has a sub-thread stream and multiple flow two major classes, but no matter which kind of, in wound tube heat exchanger All it is the heat exchanger tube using same caliber, is closely wound outside Guan Xin, whether axial spacing or horizontal spacing are all non- Often small, to cause the flow resistance of shell-side fluid larger, the flow-disturbing effect and heat convection effect of shell-side fluid are reduced.Cause This, has much room for improvement in wound tube heat exchanger around the structure of pipe and arrangement.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of multiple flow reduced pipe wound tube heat exchangers.
The technical solution adopted by the present invention is that: multiple flow reduced pipe wound tube heat exchanger includes shell, bobbin carriage, tube sheet, core Cylinder, around pipe, positioning strip, shell side inlet/outlet pipe, tube side inlet/outlet pipe, pass partition and hanging support, it is characterised in that: for core Each layer is all entwined by two kinds of replacing around pipe for caliber, axial spacing positioning strip of the same layer between pipe cylinder around pipe outside Positioning, adjacent ectonexine is identical around the helical angle of pipe and winding direction is opposite;All both ends around pipe are divided into according to pipe diameter size Two tube banks, there are two types of arrangements for two of every one end tube banks: first is that each section of two tube banks be arranged in it is same Two regions of block tube sheet, and pass partition is set on tube sheet and in bobbin carriage and separates two regions;Second is that every one end Two tube banks are arranged on two pieces of small tube sheets, and bobbin carriage and inlet/outlet pipe is respectively set in two pieces of small tube sheets, pass through end socket and right Claim the 45° angle position for being fixed on end socket;Two kinds of tube bank arrangements constitute the bifilar stream of tube side.
Described to be not limited only to around pipe using two kinds of calibers, when using a variety of calibers around pipe, each layer is around pipe outside core cylinder All being successively entwined around pipe by a variety of calibers, each caliber are used as a tube side, each tube bank difference around pipe tube bank The multiple regions of same tube sheet are arranged in, and is correspondingly arranged pass partition on tube sheet and in bobbin carriage and divides each region It opens, to constitute tube side multiple flow.
It is described around pipe use a variety of calibers when, each caliber around pipe restrain use independent small tube sheet, each tubule Bobbin carriage and inlet/outlet pipe is respectively set in plate, the 45° angle position of end socket across end socket and is symmetrically fixed on, to constitute tube side multiply Stream.
Every kind of pipe diameter size around pipe is depending on the process conditions of tube side fluid each under actual operating mode.
Compared with prior art, the invention has the following advantages: first is that a variety of calibers use one piece of tube sheet around pipe Upper subregion arrangement or multiple small tube sheet arrangements, to constitute tube side fluid multiple flow, the tube side fluid for realizing various working is same When exchange heat with a kind of shell-side fluid, alternative multiple common pipe heat exchangers improve the synthesis heat transfer effect of shell-side fluid;Two Be outside core cylinder each layer all used around pipe a variety of calibers around pipe successively canoe, increase diameter of the ectonexine between pipe To the axial gap of gap and same layer between pipe, it is significantly reduced shell-side fluid flow resistance, enhances the turbulent flow of shell-side fluid Degree and heat convection effect;Third is that compared with double tubesheet structure, tube sheet material consumption can be greatly reduced using four tube plate structures, Mitigate tube sheet weight and heat exchanger total weight, saves manufacturing cost.
Detailed description of the invention
Fig. 1 is the multiple flow reduced pipe wound tube heat exchanger of double tubesheet.
Attached drawing 1 marks: 1- pass partition;2- bobbin carriage;3- path is around pipe tube side outlet;4- shell side inlet tube;5- shell; 6- tube sheet;7- path is around pipe tube side inlet tube;8- major diameter is around pipe tube side inlet tube;9- shell-side outlet pipe;10- path is around pipe;11- Major diameter is around pipe;12- hanging support;13- core cylinder;14- major diameter is around pipe tube side outlet.
Fig. 2 is the multiple flow reduced pipe wound tube heat exchanger of four tube sheets.
Attached drawing 2 marks: 1- shell side inlet tube;2- path exports bobbin carriage around the tube side of pipe;3- end socket;4- tube sheet;5- shell; 6- path is around pipe;Tube side import bobbin carriage of the 7- path around pipe;8- shell-side outlet pipe;Tube side import bobbin carriage of the 9- major diameter around pipe;10- Major diameter is around pipe;11- core cylinder;12- hanging support;13- major diameter exports bobbin carriage around the tube side of pipe.
Specific embodiment
The assembling process of multiple flow reduced pipe wound tube heat exchanger is further illustrated with reference to the accompanying drawing.
By taking the bifilar stream reduced pipe wound tube heat exchanger of double tubesheet as an example, firstly, the Tube-sheet Welding of core cylinder and both ends is consolidated Fixed, then, each layer around pipe according to the helical angle of design around pipe all being successively wrapped in outside core cylinder by a variety of calibers, then, institute Have and be divided into two tube banks according to pipe diameter size around the both ends of pipe, two tube banks of one end respectively penetrate two of same tube sheet Two tube banks in area, the other end respectively penetrate the corresponding area Liang Ge of another piece of tube sheet again.
For the bifilar stream reduced pipe wound tube heat exchanger of four tube sheets, firstly, by the circle of core cylinder tube sheet similar with both ends Frame welding is fixed, and then, each layer is all successively wrapped in core cylinder according to the helical angle of design around pipe by a variety of calibers around pipe Outside, then, all both ends around pipe are divided into two tube banks according to pipe diameter size, and two tube banks of one end are each passed through circular frame Frame and penetrate two pieces of tube sheets, two tube banks of the other end respectively penetrate corresponding other two pieces of tube sheets again.
Axial spacing of the same layer between pipe is positioned with positioning strip, and positioning strip is weldingly fixed in advance on bottom plate item, bottom plate Item is axially arranged along core cylinder, is weldingly fixed on core cylinder;Adjacent ectonexine around pipe winding direction on the contrary, both ends and pipe around pipe Plate junction is all made of first swollen rear weldering mode and fixes;The tube bank around pipe composition of core cylinder and different tube diameters is integrally packed into shell.
For the bifilar stream reduced pipe wound tube heat exchanger of double tubesheet, both ends tube sheet is fixed with case weld, at both ends One piece of pass partition is respectively set in bobbin carriage, the partition two sides of bobbin carriage respectively correspond welding tube side inlet and outlet adapter tube, by band every The both ends bobbin carriage of plate is connect by welding with tube sheet, the inlet and outlet of the top center setting shell side of bobbin carriage end socket at both ends Pipe.
For the bifilar stream reduced pipe wound tube heat exchanger of four tube sheets, the circular frame for restraining both ends is solid with 4-6 root angle steel It is scheduled on surface of cylinder's inboard wall, two pieces of tube sheets for restraining every one end dock two small bobbin carriages, and two small bobbin carriages pass through end socket and weld solid It is scheduled on the 45° angle position of end socket, then connect end socket with shell butt welding, shell side is arranged in the top center of end socket at both ends Inlet/outlet pipe.
When multiple flow reduced pipe wound tube heat exchanger works, shell side heat transferring medium is flowed into from shell-side fluid inlet tube, in shell That different tube diameters are axially washed away in journey carries out heat convection around pipe, while with around pipe, finally flows out from shell side fluid outlet pipe;Pipe Two kinds of heat transferring mediums of journey separately flow into two kinds of calibers around the corresponding tube side fluid inlet tube of pipe, heat transferring medium passes through two kinds of pipes Diameter exchanges heat with shell-side fluid simultaneously around pipe, is finally discharged respectively from two tube side outlets.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (3)

1. multiple flow reduced pipe wound tube heat exchanger, including shell, bobbin carriage, tube sheet, core cylinder, around pipe, positioning strip, shell side inlet and outlet Pipe, tube side inlet/outlet pipe, pass partition and hanging support, it is characterised in that: for each layer outside core cylinder around pipe, all managed by two kinds Diameter is alternately entwined around pipe, and axial spacing of the same layer between pipe is positioned with positioning strip, spiral of the adjacent ectonexine around pipe Angle is identical and winding direction is opposite;All both ends around pipe are divided into two tube banks, two pipes of every one end according to pipe diameter size There are two types of arrangements for beam: first is that two of every one end are restrained two regions for being arranged in same tube sheet, and in tube sheet Pass partition is set in upper and bobbin carriage and separates two regions;Second is that two tube banks of every one end are arranged in two pieces of tubules On plate, bobbin carriage and inlet/outlet pipe is respectively set in two pieces of small tube sheets, across end socket and is symmetrically fixed on the 45° angle position of end socket;Two Kind tube bank arrangement constitutes the bifilar stream of tube side.
2. multiple flow reduced pipe wound tube heat exchanger according to claim 1, it is characterised in that: described to be not limited only to around pipe Using two kinds of calibers, when using a variety of calibers around pipe, each layer around pipe around pipe all successively twining by a variety of calibers outside core cylinder Around forming, each caliber is used as a tube side around pipe tube bank, each to restrain the multiple areas for being arranged in same tube sheet Domain, and on tube sheet and be correspondingly arranged pass partition in bobbin carriage and separate each region, to constitute tube side multiple flow.
3. multiple flow reduced pipe wound tube heat exchanger according to claim 1, it is characterised in that: it is described around pipe using a variety of When caliber, restraining around pipe for each caliber uses independent small tube sheet, and bobbin carriage and inlet/outlet pipe is respectively set in each small tube sheet, It across end socket and is symmetrically fixed on the 45° angle position of end socket, to constitute tube side multiple flow.
CN201710664032.5A 2017-08-06 2017-08-06 Multiple flow reduced pipe wound tube heat exchanger Active CN107270741B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710664032.5A CN107270741B (en) 2017-08-06 2017-08-06 Multiple flow reduced pipe wound tube heat exchanger

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CN201710664032.5A CN107270741B (en) 2017-08-06 2017-08-06 Multiple flow reduced pipe wound tube heat exchanger

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CN107270741B true CN107270741B (en) 2019-08-30

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108800994B (en) * 2018-06-15 2022-03-29 淮阴工学院 Horizontal heat exchanger
CN112539668A (en) * 2020-11-30 2021-03-23 杭州科百特过滤器材有限公司 Heat exchanger and manufacturing method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT251013B (en) * 1964-05-20 1966-12-12 Waagner Biro Ag Heat exchanger
CN204188042U (en) * 2014-09-05 2015-03-04 江西森泰药业有限公司 A kind of tubular heat exchanger
CN104457333A (en) * 2013-09-13 2015-03-25 海安天润机械科技有限公司 Reverse helically-coiled tube type cooler
JP2016003774A (en) * 2014-06-13 2016-01-12 リンナイ株式会社 Heat exchanger and heat pump heating device
CN205679090U (en) * 2016-06-23 2016-11-09 镇海石化建安工程有限公司 There is the Heat Exchangers of different tube diameters
CN207147275U (en) * 2017-08-06 2018-03-27 郑州大学 Multiple flow reduced pipe wound tube heat exchanger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT251013B (en) * 1964-05-20 1966-12-12 Waagner Biro Ag Heat exchanger
CN104457333A (en) * 2013-09-13 2015-03-25 海安天润机械科技有限公司 Reverse helically-coiled tube type cooler
JP2016003774A (en) * 2014-06-13 2016-01-12 リンナイ株式会社 Heat exchanger and heat pump heating device
CN204188042U (en) * 2014-09-05 2015-03-04 江西森泰药业有限公司 A kind of tubular heat exchanger
CN205679090U (en) * 2016-06-23 2016-11-09 镇海石化建安工程有限公司 There is the Heat Exchangers of different tube diameters
CN207147275U (en) * 2017-08-06 2018-03-27 郑州大学 Multiple flow reduced pipe wound tube heat exchanger

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Effective date of registration: 20220418

Address after: 471000 in the yard of Jili District petrochemical plant, Luoyang City, Henan Province

Patentee after: LUOYANG LONGHUI PETROCHEMICAL ENGINEERING Co.,Ltd.

Address before: 450001 No. 100 science Avenue, hi tech Zone, Henan, Zhengzhou

Patentee before: Zhengzhou University

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