CN202734617U - Telescopic corrugated pipe heat exchanger - Google Patents

Telescopic corrugated pipe heat exchanger Download PDF

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Publication number
CN202734617U
CN202734617U CN 201220284576 CN201220284576U CN202734617U CN 202734617 U CN202734617 U CN 202734617U CN 201220284576 CN201220284576 CN 201220284576 CN 201220284576 U CN201220284576 U CN 201220284576U CN 202734617 U CN202734617 U CN 202734617U
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CN
China
Prior art keywords
heat exchanger
pipe
tube
heat exchange
telescopic corrugated
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 201220284576
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Chinese (zh)
Inventor
王通华
郑洪国
汪洋
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YANGZHOU JUREN MACHINERY CO Ltd
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YANGZHOU JUREN MACHINERY CO Ltd
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Priority to CN 201220284576 priority Critical patent/CN202734617U/en
Application granted granted Critical
Publication of CN202734617U publication Critical patent/CN202734617U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a telescopic corrugated pipe heat exchanger and belongs to the technical field of heat exchangers, and the heat exchanger is used for solving the problems that heat exchange area of the heat exchanger is small, the heat exchange efficiency is poor and heat exchange pipes are easy to scale in the prior art. The telescopic corrugated pipe heat exchanger comprises a shell and pipe boxes located on the two ends of the shell, wherein two ends of the shell are respectively connected with the pipe boxes through pipe plates, a plurality of heat exchange pipes are arranged inside the shell and between two pipe plates, two ends of the heat exchange pipes penetrate through the pipe plates and are respectively communicated with the corresponding pipe boxes, the heat exchange pipes are telescopic corrugated pipes, the telescopic corrugated pipes are composed of arc pipe sections and horn pipe sections, and the arc pipe sections and the horn pipe sections are identical in wall thickness and are arranged at intervals. The telescopic corrugated pipe heat exchanger disclosed by the utility model has the advantages of large heat exchange area, high heat transmission coefficient, less scaling possibility, low use cost and maintenance cost and strong practicability and adaptability; and if the telescopic corrugated pipes heat exchanger is put into production, favorable social benefits and economic benefits can be created.

Description

A kind of convergent-divergent corrugated tube heat exchanger
Technical field
The utility model relates to a kind of heat exchanger, particularly a kind of convergent-divergent waved tube heat exchanger.
Background technology
Heat exchanger is a large amount of exchange heat equipment that use of the industries such as heating power, chemical industry, oil, light industry, mainly comprise three kinds of citation forms: storage type, Instant heating type and semi instant heating heat exchanger, and various forms of heat exchanger kinds are a lot, common are plate type heat exchanger and pipe heat exchanger.
Pipe heat exchanger mainly is made of the bobbin carriage that comprises housing, heat exchanger tube and be positioned at the housing two ends, the housing two ends are connected with bobbin carriage respectively through tube sheet, enclosure interior is equipped with some parallel heat exchanger tubes, and the two ends of heat exchanger tube are fixed on the tube sheet and are connected with corresponding bobbin carriage respectively.Carry out two kinds of fluids of heat exchange in pipe heat exchanger, a kind of mobile in pipe, its stroke is called tube side; A kind of mobile outside pipe, its stroke is called shell side.During work, the tube side medium enters bobbin carriage from the tube side import, be injected into afterwards with heat exchanger tube that bobbin carriage is connected in, the shell side medium enters housing by the shell side import, and between heat exchanger tube, flow through with tube side medium generation heat exchange after flowed out by shell side outlet, the tube side medium that heat exchange occured then flows out from the tube side outlet of the housing other end, and is recycling.This shows, the wall of heat exchanger tube is heat-transfer area, so heat exchanger tube is the most important heat exchange element of pipe heat exchanger.In the prior art, the most frequently used heat exchanger tube has two kinds, and a kind of is straight tube, and another kind is bellows.
Straight pipe heat exchanger is the simplest heat exchanger, it be do not do any processing directly with seam welded tube or seamless pipe as heat exchanger.Mainly there are two drawbacks in this heat exchanger tube, and (1) must cause the flexible of heat exchanger tube when heat exchange medium temperature or pressure change, and larger stress will be born in commissure, pipe two ends.When this stress surpasses certain limit or after motion surpasses the weld fatigue limit repeatedly, will cause weld cracking.(2) because the inside and outside tube wall of heat exchanger tube is smooth surface, and when the flow velocity of tube fluid was slower, fluid was laminar condition in pipe, and produced the boundary layer, namely occurred thermograde from the tube hub to the tube wall, the appearance in boundary layer greatly reduces heat-transfer capability.(3) under the equal volume, the heat exchange area of the heat exchange coil of this smooth surface is little, and heat exchange efficiency is poor.
Bellows is a kind of elastic sensing element, and retractable has solved heat exchanger tube because the flexible problem that the variation of temperature or pressure causes, and increased heat exchange area.But because ripple is overstocked, can't cause the state of disturbance of fluid, be difficult to fundamentally solve laminar flow problem.
The utility model content
In order to overcome deficiency of the prior art, the purpose of this utility model provides the convergent-divergent corrugated tube heat exchanger that a kind of heat exchange area is large, heat exchange efficiency is high, less scaling.
The purpose of this utility model is achieved in that a kind of convergent-divergent corrugated tube heat exchanger, comprise housing and be positioned at the bobbin carriage at housing two ends, the housing two ends are connected with described bobbin carriage respectively through tube sheet, in the housing and between two tube sheets, also be provided with some heat exchanger tubes, the two ends of described heat exchanger tube are run through tube sheet and are connected with corresponding bobbin carriage respectively, described heat exchanger tube is the convergent-divergent bellows, and described convergent-divergent bellows consists of by the identical circular arc pipeline section of wall thickness is alternate with the loudspeaker pipeline section.
During the utility model work, the tube side medium enters bobbin carriage from the tube side import, be injected into afterwards with heat exchanger tube that bobbin carriage is connected in, the shell side medium enters housing by the shell side import, and between heat exchanger tube, flow through with tube side medium generation heat exchange after flowed out by shell side outlet, the tube side medium that heat exchange occured then flows out from the tube side outlet of the housing other end, and so circulation is to realize the heat transfer effect of heat exchanger.
As further improvement of the utility model, the diameter of described loudspeaker pipeline section is along MEDIA FLOW in the pipe to diminishing gradually.
As further improvement of the utility model, described circular arc pipeline section is that arc transition is connected with the junction of loudspeaker pipeline section.
Compared with prior art, the beneficial effects of the utility model are: 1. the heat exchanger tube surfaces externally and internally is concavo-convex so that the mobile state of heat transferring medium changes turbulent flow and eddy flow state into by laminar condition, this state has effectively been broken the boundary layer, increase simultaneously the interior flow process of pipe of tube side medium and the heat exchange area of heat exchanger tube, significantly improved the heat transfer effect of heat exchanger; 2. the heat exchanger tube tube wall processes concavo-convex ripple, and its voltage endurance capability improves greatly, and the tube wall of heat exchanger tube is attenuate suitably, has not only saved the heat exchanger tube production cost, and can further improve the heat transfer effect of heat exchanger; 3. produce strong turbulent flow when flowing inside and outside the convergent-divergent bellows owing to medium, the solid in the medium or suspension are difficult to deposition, and be less scaling, reduced the requirement of heat exchanger to water quality, improved its applicability; Even the pipe table forms the dirt layer after long-time the use, because metal bellows is different from the coefficient of expansion of dirt layer, when changing when colding and heat succeed each other, will produce larger pulling-out force between the two, can make the dirt layer break, come off, have stronger self-cleaning action, duration of work needn't cleaning during shutdown, reduces maintenance workload; 4. the circular arc pipeline section adopts arc transition to be connected with the junction of loudspeaker pipeline section, can bear and compensate from the stress that axially reaches radially, avoids induced vibration, stable and reliable operation.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of the utility model convergent-divergent bellows.
Wherein, 1 housing; 2 bobbin carriages; 3 tube sheets; 4 convergent-divergent bellowss; 4a circular arc pipeline section; 4b loudspeaker pipeline section.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the utility model comprises housing 1 and is positioned at the bobbin carriage 2 at housing 1 two ends, housing 1 two ends are connected with bobbin carriage 2 respectively through tube sheet 3, in the housing 1 and between two tube sheets 3, also be provided with some heat exchanger tubes, the two ends of heat exchanger tube are run through tube sheet 3 and are connected with corresponding bobbin carriage 2 respectively, heat exchanger tube is convergent-divergent bellows 4, convergent-divergent bellows 4 consists of by the identical circular arc pipeline section 4a of wall thickness is alternate with loudspeaker pipeline section 4b, the diameter of loudspeaker pipeline section 4b is along MEDIA FLOW is to diminishing gradually in the pipe, and circular arc pipeline section 4a is that arc transition is connected with the junction of loudspeaker pipeline section 4b.For fear of heat transferring medium corrosion convergent-divergent bellows 4, convergent-divergent bellows 4 preferred stainless steel materials.
The utility model is not limited to above-described embodiment; on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection domain of the present utility model.

Claims (3)

1. convergent-divergent corrugated tube heat exchanger, comprise housing and be positioned at the bobbin carriage at housing two ends, the housing two ends are connected with described bobbin carriage respectively through tube sheet, in the housing and between two tube sheets, also be provided with some heat exchanger tubes, the two ends of described heat exchanger tube are run through tube sheet and are connected with corresponding bobbin carriage respectively, it is characterized in that, described heat exchanger tube is the convergent-divergent bellows, and described convergent-divergent bellows consists of by the identical circular arc pipeline section of wall thickness is alternate with the loudspeaker pipeline section.
2. a kind of convergent-divergent corrugated tube heat exchanger according to claim 1 is characterized in that, the diameter of described loudspeaker pipeline section is along MEDIA FLOW in the pipe to diminishing gradually.
3. a kind of convergent-divergent corrugated tube heat exchanger according to claim 1 and 2 is characterized in that, described circular arc pipeline section is that arc transition is connected with the junction of loudspeaker pipeline section.
CN 201220284576 2012-06-18 2012-06-18 Telescopic corrugated pipe heat exchanger Expired - Fee Related CN202734617U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220284576 CN202734617U (en) 2012-06-18 2012-06-18 Telescopic corrugated pipe heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220284576 CN202734617U (en) 2012-06-18 2012-06-18 Telescopic corrugated pipe heat exchanger

Publications (1)

Publication Number Publication Date
CN202734617U true CN202734617U (en) 2013-02-13

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CN 201220284576 Expired - Fee Related CN202734617U (en) 2012-06-18 2012-06-18 Telescopic corrugated pipe heat exchanger

Country Status (1)

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CN (1) CN202734617U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103438727A (en) * 2013-08-22 2013-12-11 华南理工大学 Stainless steel bellow condenser of condensation type gas water heater
CN108225057A (en) * 2018-02-11 2018-06-29 佛山科学技术学院 A kind of concave surface heat exchanger tube double pipe heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103438727A (en) * 2013-08-22 2013-12-11 华南理工大学 Stainless steel bellow condenser of condensation type gas water heater
CN108225057A (en) * 2018-02-11 2018-06-29 佛山科学技术学院 A kind of concave surface heat exchanger tube double pipe heat exchanger

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130213

Termination date: 20140618

EXPY Termination of patent right or utility model