CN104457331B - A kind of twisted tube heat exchanger - Google Patents

A kind of twisted tube heat exchanger Download PDF

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Publication number
CN104457331B
CN104457331B CN201410759370.3A CN201410759370A CN104457331B CN 104457331 B CN104457331 B CN 104457331B CN 201410759370 A CN201410759370 A CN 201410759370A CN 104457331 B CN104457331 B CN 104457331B
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housing
fixed
heat exchanger
bobbin carriage
tube
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CN104457331A (en
Inventor
刘建书
袁成乾
曹洪海
徐泽辉
徐宏
封其冲
朱晓军
袁礼霞
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WUXI CHEMICAL EQUIPMENT CO Ltd
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WUXI CHEMICAL EQUIPMENT CO Ltd
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Abstract

The invention provides a kind of twisted tube heat exchanger, housing is cylinder, and housing includes the first end and the second end, and the first end of housing is fixed with the first bobbin carriage, and the second end of housing is fixed with the second bobbin carriage, is provided with tube bank in housing;Housing is provided with the first material inlet and the first material outlet, and lower housing portion is provided with bearing;First bobbin carriage is provided with drain and discharging hole, and the first bobbin carriage intracavity is fixed with floating head;Second bobbin carriage is provided with the second material inlet and the second material outlet, and the second bobbin carriage intracavity is fixed with dividing plate.One twisted tube heat exchanger of the present invention, replaces tradition heat exchanger tube with twisted tube, changes pipe, the flow direction of shell-side fluid, restrain no baffle plate, with hoop, tube bank is fixing, reduces shell-side pressure drop;There is a lot of self-supporting point between twisted tube, improve the vibration proof ability of heat exchanger, utilize longitudinal baffle and spring leaf sealing strip, in a housing, be divided into two shell sides, increase the flow process of shell-side fluid, reach abundant heat exchange, improve heat exchange efficiency further.

Description

A kind of twisted tube heat exchanger
Technical field
The present invention relates to field of heat exchangers, particularly relate to twisted tube heat exchanger.
Background technology
Heat exchanger is a kind of to realize between material heat transmission between two or more fluid of different temperatures Energy-saving equipment, be to make heat be passed to, by higher fluid, the fluid that temperature is relatively low, make fluid temperature (F.T.) reach The index of flow specification, to meet the needs of process condition, also improves the main of energy utilization rate simultaneously One of equipment.
Shell-and-tube heat exchanger is the product that an amount is big and various in style, in the urgent need to new wear-resistant, corrosion resistant Erosion, high-strength material.China is non-at development rustless steel copper alloy composite material, almag and carborundum etc. The aspects such as metal material have progress in various degree, especially the most very fast with the development of titanium material.Titanium is to sea water, chlorine Alkali, acetic acid etc. have preferable resistance to corrosion, and such as augmentation of heat transfer again, effect will more preferably, some manufacturers The most preferably grasp the processing and manufacturing technology of titanium material.Spraying to material, China has introduced production from abroad Line.Almag has higher corrosion resistance and heat conductivity, and price is more cheap than titanium material, it should be noted that.State The aspects such as inherent energy efficiency improve heat exchanger performance, improve heat transfer efficiency, reduce heat transfer area and reduce pressure Fall, the research improving the aspects such as device calorific intensity achieves important achievement.The a large amount of of heat exchanger use effectively Improve the utilization rate of the energy, make entreprise cost reduce, benefit improves.
Heat exchanger is widely used in various industrial circle, is the visual plant realizing heat transfer technological requirement.? Frequently with double pipe heat exchanger in the fields such as heat pump, air-conditioning, HVAC.Commonly used in prior art is set Pipe heat exchanger is one or a few light pipe built-in in an outer tube, but the heat transfer efficiency of this heat exchanger is universal Relatively low;The most this kind of heat exchanger, when making coaxial spiral sleeve pipe pattern, needs support member to protect in outer tube Card coaxially and does not damages.
Heat exchanger tube used by currently manufactured heat exchanger is all round tube, supports that heat exchanger tube is not to be exactly with deflection plate With rod baffle or deflecting fence, the pressure drop to shell-side fluid increases, and the energy of consumption is the most, meanwhile, fluid with Advection is main, easily produces stagnant area, and forms dirt, impact on heat exchanger tube and heat exchanger tube support member Heat transfer effect.The present invention uses torsion heat exchange pipe, two media spirality to flow through, and formation is streamed, Reaching enhanced heat exchange effect, meanwhile, tube wall is washed away the deposition that can prevent dirt by fluid.
Having one again is that inner tube uses multi-start helical tubes, and the multi-head spiral shape design of inner tube uniqueness makes fluid exist Form eddy flow between inner and outer pipes in multiple minor spiral passages, the effect of augmentation of heat transfer can be played, and in technique Ensure that inner and outer pipes is coaxial;But owing to passage is little, this kind of heat exchanger often resistance is very big, and owing to its both sides lead to Cross section, road often differs greatly, therefore is only used for the heat exchange of water and cold-producing medium.
Research data shows: oval twisted tube has higher heat transfer system for general shell and tube exchanger Number, and under the same conditions, flow resistance is less, overall performance is preferable, is a kind of product having potentiality to be exploited Product.But due to the relation of production technology, oval twisted tube domestic production producer is less, uses oval twisted tube Coaxial heat exchanger for inner tube does not sees product at present.
Therefore, it is effectively improved the heat transfer efficiency of the coaxial heat exchanger of prior art, expands the application of process fluid Scope, and do not dramatically increase resistance and become the major issue making coaxial heat exchanger.
Summary of the invention
The technical problem to be solved in the present invention is to overcome existing defect, it is provided that a kind of twisted tube heat exchanger, Replace tradition heat exchanger tube with twisted tube, change pipe, the flow direction of shell-side fluid, improve heat exchange efficiency.
In order to solve above-mentioned technical problem, the invention provides following technical scheme:
A kind of twisted tube heat exchanger, including the first bobbin carriage (1), floating head (4), housing (5), tube bank (6) and the Two bobbin carriages (9), described housing (5) is cylinder, and housing (5) includes the first end and the second end, the of housing (5) One end is fixed with the first bobbin carriage (1), and the second end of housing (5) is fixed with the second bobbin carriage (9), in described housing (5) It is provided with tube bank (6);Described housing (5) is provided with the first material inlet (7) and the first material outlet (12), described shell Body (5) bottom is provided with bearing (13);Described first bobbin carriage (1) is provided with drain (2) and discharging hole (3), and described the One bobbin carriage (1) intracavity is fixed with floating head (4);Described second bobbin carriage (9) is provided with the second material inlet (10) and the Two material outlets (11), described second bobbin carriage (9) intracavity is fixed with dividing plate (8).
Further, described second bobbin carriage (9) intracavity is welded with dividing plate (8).
Further, described tube bank (6) includes that the first end and the second end, the first end of tube bank (6) are fixed on first Fixing with floating head (4) in bobbin carriage (1), the second end of tube bank (6) is fixed on the fixing of the second bobbin carriage (9) and housing Place, freely can stretch with variation with temperature, prevent because of torsion heat exchange pipe (602) and housing (5) amount of contraction not Equally make device damage.
Further, described first bobbin carriage (1) and housing (5) are with fixing bolt-connection.
Further, described second bobbin carriage (9) and housing (5) are with fixing bolt-connection.
Further, described tube bank (6) includes floating tubesheet (601), torsion heat exchange pipe (602), longitudinal baffle (603), guide shell (604), hoop (605), securing member (606), spring leaf (607), baffle plate (608), pressing plate (609), fixed tube sheet (610) and support plate (611);Described torsion heat exchange pipe (602) includes the first end and second End, the first end of described torsion heat exchange pipe (602) is connected with floating tubesheet (601), described torsion heat exchange pipe (602) The second end be connected with fixed tube sheet (610);Bolt hole and locating slot, institute has been opened on described longitudinal baffle (603) State longitudinal baffle (603) and include that the first end and the second end, the first end of described longitudinal baffle (603) have square lacking Mouthful, the second end of described longitudinal baffle (603) is connected with fixed tube sheet (610), and described longitudinal baffle (603) is upper solid Surely there is spring leaf (607);The two ends of described baffle plate (608) are inserted in the locating slot of longitudinal baffle (603), described gear Plate (608) welds with guide shell (604);Guide shell (604) includes upper half guide shell and lower half guide shell, and upper half is led Flow cartridge and lower half guide shell both sides all have bolt hole, guide shell (604) parcel torsion heat exchange pipe (602);Described Spring leaf (607) is fixed on longitudinal baffle (603) by pressing plate (609) by securing member (606);Described spring leaf (607) with housing (5) interior side contacts sealing, guide shell (604), housing (5) are divided into by described spring leaf (607) Upper and lower two chambeies;Described floating tubesheet (601) couples with floating head (4) securing member (606);Described support plate (611) bottom of guide shell (604) it is fixed on.
Further, the first end of described torsion heat exchange pipe (602) is swollen with floating tubesheet (601) employing patch adds intensity Weldering connects.
Further, the second end of described torsion heat exchange pipe (602) is swollen with fixed tube sheet (610) employing patch adds intensity Weldering connects.
Further, described torsion heat exchange pipe (602) is fixed on guide shell (604) by the hoop (605) of more than 2 In.
Further, described torsion heat exchange pipe (602) is fixed in guide shell (604) by 5 hoops (605).
Further, the second end of described longitudinal baffle (603) is welded to connect with fixed tube sheet (610).
Further, the upper and lower surfaces of described longitudinal baffle (603) are respectively and fixedly provided with spring leaf (607).
Further, described fixed tube sheet (610) is fixed between the second bobbin carriage (9) and housing (5).
Further, described support plate (611) is fixedly welded on the bottom of guide shell (604).
Material I is flowed into by the first material inlet 7, through guide shell 604 top, longitudinal baffle 603 breach stream To guide shell 604 bottom, then flowed out by the first material outlet 12;Material II is flowed by the second material inlet 10 Enter the second bobbin carriage 9 upper half chamber, flow to floating head (4) through top half torsion heat exchange pipe 602, then by lower half Divide torsion heat exchange pipe 602 to flow back into the second bobbin carriage 9 lower half chamber, the second material outlet 11 flow out, two materials Complete heat by torsion heat exchange pipe 602 to exchange.
One twisted tube heat exchanger of the present invention, replaces tradition heat exchanger tube with twisted tube, changes pipe, shell-side fluid The flow direction, improve heat exchange efficiency.Tube bank no baffle plate, with hoop, tube bank is fixing, greatly reduce shell side pressure Fall, reaches energy-saving effect;There is a lot of self-supporting point between twisted tube, be greatly improved the vibrationproof kinetic energy of heat exchanger Power.Utilize dividing plate and spring leaf sealing strip, in a housing, be divided into two shell sides, increase shell-side fluid Flow process, reaches abundant heat exchange, improves heat exchange efficiency further.
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, with this Bright embodiment is used for explaining the present invention together, is not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the present invention a kind of twisted tube heat exchanger;
Fig. 2 is the structural representation of tube bank 6 in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that described herein Preferred embodiment is merely to illustrate and explains the present invention, is not intended to limit the present invention.
A kind of twisted tube heat exchanger as shown in Figure 1, including the first bobbin carriage 1, floating head 4, housing 5, tube bank 6 and second bobbin carriage 9, described housing 5 is cylinder, and housing 5 includes the first end and the second end, housing 5 First end is fixed with the first bobbin carriage 1, and the second end of housing 5 is fixed with the second bobbin carriage 9, sets in described housing 5 There is tube bank 6;Described housing 5 is provided with the first material inlet 7 and the first material outlet 12, described housing 5 Bottom is provided with bearing 13;Described first bobbin carriage 1 is provided with drain 2 and discharging hole 3, described first bobbin carriage 1 intracavity is fixed with floating head 4;Described second bobbin carriage 9 is provided with the second material inlet 10 and goes out with the second material Mouth 11, described second bobbin carriage 9 intracavity is fixed with dividing plate 8;Described second bobbin carriage 9 intracavity be welded with every Plate 8;Described tube bank 6 includes the first end and the second end, the first end of tube bank 6 be fixed in the first bobbin carriage 1 with Floating head 4 is fixed, and the second end of tube bank 6 is fixed on the bearing of the second bobbin carriage 9 and housing 5;Described One bobbin carriage 1 and housing 5 are with fixing bolt-connection;Described second bobbin carriage 9 joins with fixing bolt with housing 5 Connect.
As in figure 2 it is shown, described tube bank 6 includes floating tubesheet 601, torsion heat exchange pipe 602, longitudinal baffle 603, guide shell 604, hoop 605, securing member 606, spring leaf 607, baffle plate 608, pressing plate 609, solid Fixed tube plate 610 and support plate 611;Described torsion heat exchange pipe 602 includes the first end and the second end, described torsion First end of bent heat exchanger tube 602 is connected with floating tubesheet 601, the second end of described torsion heat exchange pipe 602 and Fixed tube sheet 610 connects;Bolt hole and locating slot, described longitudinal baffle has been opened on described longitudinal baffle 603 603 include that the first end and the second end, the first end of described longitudinal baffle 603 have square breach, described vertical It is connected with fixed tube sheet 610 to the second end of dividing plate 603, described longitudinal baffle 603 is fixed with spring leaf 607;The two ends of described baffle plate 608 are inserted in the locating slot of longitudinal baffle 603, described baffle plate 608 and water conservancy diversion Cylinder 604 welding;Guide shell 604 includes upper half guide shell and lower half guide shell, and upper half guide shell is led with lower half Flow cartridge both sides all have bolt hole, and guide shell 604 wraps up torsion heat exchange pipe 602;Described pressing plate 609 passes through Spring leaf 607 is fixed on longitudinal baffle 603 by securing member 606;In described spring leaf 607 and housing 5 Side contacts also seals, and guide shell 604, housing 5 are divided into upper and lower two chambeies by described spring leaf 607;Described Floating tubesheet 601 couples with floating head 4 securing member 606;Described support plate 611 is fixed on guide shell 604 Bottom;First end of described torsion heat exchange pipe 602 and floating tubesheet 601 use the swollen intensity that adds of patch to weld even Connect;Second end of described torsion heat exchange pipe 602 and fixed tube sheet 610 use that patch is swollen to be added intensity weldering and be connected;Institute State torsion heat exchange pipe 602 to be fixed in guide shell 604 by the hoop 605 of more than 2;Described distortion heat exchange Pipe 602 is fixed in guide shell 604 by 5 hoops 605;Second end of described longitudinal baffle 603 It is welded to connect with fixed tube sheet 610;The upper and lower surfaces of described dividing plate 603 longitudinal direction are respectively and fixedly provided with spring leaf 607;Described fixed tube sheet 610 is fixed between the second bobbin carriage 9 and housing 5;Described support plate 611 welds It is fixed on the bottom of guide shell 604.
Material I is flowed into by the first material inlet 7, through guide shell 604 top, longitudinal baffle 603 breach stream To guide shell 604 bottom, then flowed out by the first material outlet 12;Material II is flowed by the second material inlet 10 Enter the second bobbin carriage 9 upper half chamber, flow to floating head (4) through top half torsion heat exchange pipe 602, then by lower half Divide torsion heat exchange pipe 602 to flow back into the second bobbin carriage 9 lower half chamber, the second material outlet 11 flow out, two materials Complete heat by torsion heat exchange pipe 602 to exchange.
One twisted tube heat exchanger of the present invention, replaces tradition heat exchanger tube with twisted tube, changes pipe, shell-side fluid The flow direction, improve heat exchange efficiency.Tube bank no baffle plate, with hoop, tube bank is fixing, greatly reduce shell side pressure Fall, reaches energy-saving effect;There is a lot of self-supporting point between twisted tube, be greatly improved the vibrationproof kinetic energy of heat exchanger Power.Utilize dividing plate and spring leaf sealing strip, in a housing, be divided into two shell sides, increase shell-side fluid Flow process, reaches abundant heat exchange, improves heat exchange efficiency further.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to The present invention, although being described in detail the present invention with reference to previous embodiment, for the technology of this area For personnel, the technical scheme described in foregoing embodiments still can be modified by it, or to it Middle part technical characteristic carries out equivalent.All within the spirit and principles in the present invention, that is made any repaiies Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (8)

1. a twisted tube heat exchanger, including the first bobbin carriage (1), floating head (4), housing (5), tube bank (6) and the Two bobbin carriages (9), described housing (5) is cylinder, and housing (5) includes the first end and the second end, the of housing (5) One end is fixed with the first bobbin carriage (1), and the second end of housing (5) is fixed with the second bobbin carriage (9), in described housing (5) It is provided with tube bank (6);Described housing (5) is provided with the first material inlet (7) and the first material outlet (12), described shell Body (5) bottom is provided with bearing (13);Described first bobbin carriage (1) is provided with drain (2) and discharging hole (3), and described the One bobbin carriage (1) intracavity is fixed with floating head (4);Described second bobbin carriage (9) is provided with the second material inlet (10) and the Two material outlets (11), described second bobbin carriage (9) intracavity is fixed with dividing plate (8), it is characterised in that: described tube bank (6) floating tubesheet (601), torsion heat exchange pipe (602), longitudinal baffle (603), guide shell (604), hoop are included (605), securing member (606), spring leaf (607), baffle plate (608), pressing plate (609), fixed tube sheet (610) with Hold plate (611);Described torsion heat exchange pipe (602) includes the first end and the second end, described torsion heat exchange pipe (602) First end is connected with floating tubesheet (601), and the second end of described torsion heat exchange pipe (602) is with fixed tube sheet (610) even Connect;Having driven bolt hole and locating slot on described longitudinal baffle (603), described longitudinal baffle (603) includes the first end With the second end, the first end of described longitudinal baffle (603) has square breach, the of described longitudinal baffle (603) Two ends are connected with fixed tube sheet (610), and described longitudinal baffle (603) is fixed with spring leaf (607);Described baffle plate (608) two ends are inserted in the locating slot of longitudinal baffle (603), and described baffle plate (608) welds with guide shell (604) Connect;Guide shell (604) includes upper half guide shell and lower half guide shell, upper half guide shell and lower half guide shell both sides All have bolt hole, guide shell (604) parcel torsion heat exchange pipe (602);Described pressing plate (609) passes through securing member (606) spring leaf (607) is fixed on longitudinal baffle (603);Described spring leaf (607) and housing (5) interior side joint Touching and seal, guide shell (604), housing (5) are divided into upper and lower two chambeies by described spring leaf (607);Described floating head Tube sheet (601) couples with floating head (4) securing member (606);Described support plate (611) is fixed on guide shell (604) Bottom.
A kind of twisted tube heat exchanger the most according to claim 1, it is characterised in that: described torsion heat exchange pipe (602) the first end and floating tubesheet (601) use that patch is swollen to be added intensity weldering and be connected.
A kind of twisted tube heat exchanger the most according to claim 1, it is characterised in that: described torsion heat exchange pipe (602) the second end and fixed tube sheet (610) use that patch is swollen to be added intensity weldering and be connected.
A kind of twisted tube heat exchanger the most according to claim 1, it is characterised in that: described torsion heat exchange pipe (602) it is fixed in guide shell (604) by the hoop (605) of more than 2.
A kind of twisted tube heat exchanger the most according to claim 1, it is characterised in that: described longitudinal baffle (603) the second end is welded to connect with fixed tube sheet (610).
A kind of twisted tube heat exchanger the most according to claim 1, it is characterised in that: described longitudinal baffle (603) upper and lower surfaces are respectively and fixedly provided with spring leaf (607).
A kind of twisted tube heat exchanger the most according to claim 1, it is characterised in that: described fixed tube sheet (610) it is fixed between the second bobbin carriage (9) and housing (5).
A kind of twisted tube heat exchanger the most according to claim 1, it is characterised in that: described support plate (611) It is fixedly welded on the bottom of guide shell (604).
CN201410759370.3A 2014-12-11 2014-12-11 A kind of twisted tube heat exchanger Active CN104457331B (en)

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CN104457331A CN104457331A (en) 2015-03-25
CN104457331B true CN104457331B (en) 2016-08-17

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691508A (en) * 1950-12-26 1954-10-12 Pure Oil Co Floating head assembly for shell and tube type coolers or heat exchangers
CN201407928Y (en) * 2009-04-21 2010-02-17 卢秉威 High-efficient energy-saving floating-end heat exchanger with examination hole
CN101551207B (en) * 2009-05-15 2010-10-06 营口庆营石化设备总厂 Shell-and-tube heat exchanger with oblate tube
CN201706927U (en) * 2010-07-01 2011-01-12 宁波连通设备制造有限公司 Shell-and-tube exhaust-heat boiler with spiral flat tube
CN204359170U (en) * 2014-12-11 2015-05-27 无锡化工装备股份有限公司 A kind of twisted tube heat exchanger

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