CN204438865U - A kind of high efficiency composition double spiral tube shell heat exchanger - Google Patents

A kind of high efficiency composition double spiral tube shell heat exchanger Download PDF

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Publication number
CN204438865U
CN204438865U CN201320572385.XU CN201320572385U CN204438865U CN 204438865 U CN204438865 U CN 204438865U CN 201320572385 U CN201320572385 U CN 201320572385U CN 204438865 U CN204438865 U CN 204438865U
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CN
China
Prior art keywords
heat exchanger
tube
cylindrical shell
shell
side fluid
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
CN201320572385.XU
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Chinese (zh)
Inventor
莫纪洪
黄永福
谢飞
姚恒凤
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ZHENJIANG FEIDA EQUIPMENT OF HYDROPOWER STATION CO Ltd
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ZHENJIANG FEIDA EQUIPMENT OF HYDROPOWER STATION CO Ltd
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Priority to CN201320572385.XU priority Critical patent/CN204438865U/en
Application granted granted Critical
Publication of CN204438865U publication Critical patent/CN204438865U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of high efficiency composition double spiral tube shell heat exchanger in technical field of heat exchangers, comprise cylindrical shell, described cylindrical shell two ends are installed with tube sheet, some heat exchanger tubes are provided with in cylindrical shell between described tube sheet, axis in described cylindrical shell is also equidistantly provided with some helical baffles, described helical baffles is provided with some mating holes be convenient to heat exchanger tube and passed, left pipe box and right pipe box is sealedly connected with respectively outside the tube sheet at described cylindrical shell two ends, described left pipe box is provided with tube side fluid import, described right pipe box is provided with tube side fluid outlet, upper end, described cylindrical shell side is provided with shell-side fluid import, cylindrical shell opposite side lower end is provided with shell side fluid outlet, described heat exchanger tube is inside and outside wall spiral cyclone pipe vertically.Heat exchanger structure of the present utility model, can avoid shell-side fluid to there is dead band in cylindrical shell, prevents heat exchanger tube encrustation from blocking, and significantly improves heat exchange efficiency and extends service life of heat exchanger.

Description

A kind of high efficiency composition double spiral tube shell heat exchanger
Technical field
The utility model relates to technical field of heat exchange, particularly a kind of high efficiency composition double spiral tube shell heat exchanger.
Background technology
For realizing the temperature in technical process needed for material, meeting the normal operation of production procedure, cold and hot exchange must be carried out to material.At present, the technology that domestic and international shell-and-tube heat exchanger generally adopts is: adopt the core body of traditional segmental baffle and light pipe combination to make heat exchanger to complete whole heat transfer process.This kind of heat exchanger traverse baffle plane is vertical with the axis of heat exchanger tube, and the flowing of shell side medium between deflection plate is perpendicular to heat exchanger tube substantially.This type of heat exchanger has the advantages such as structure is simple, reliability is high, strong adaptability, operating flexibility are large, but in face of the challenge of equipment enlarging, also have that overall heat-transfer coefficient is low, pressure drop is large, have heat exchange dead band and Flow-induced vibration destruction etc. to be difficult to the shortcoming overcome.
For solving above-mentioned unfavorable factor, spiral baffling plate structure just has proposition as far back as the sixties in 20th century, but due to manufacture difficulty comparatively large, fail to realize suitability for industrialized production always.Within 1986, Czech scientist obtains helical baffles patent, and achieves scale manufacture in 1994 in ABB AB.The nineties in 20th century not, domesticly also discloses helical baffles patent in succession, and obtains application aborning.The birth of helical baffles, eliminate the heat exchange dead band of former segmental baffle board heat exchangers shell side, enhance the convective heat-transfer coefficient of shell-side fluid, reduce shell-side fluid Pressure Drop, also greatly reduce the heat-transfer pipe caused because of shell-side fluid induced vibration to damage simultaneously, but the problem such as the heat-transfer pipe blocking that convective heat-transfer coefficient improves and tube fluid causes because of fouling of tube side fluid is not resolved.
Utility model content
The utility model is for prior art Problems existing, a kind of high efficiency composition double spiral tube shell heat exchanger is provided, to eliminate the heat exchange dead band of heat exchanger shell pass fluid, reduce the Pressure Drop of shell-side fluid, reduce the heat-transfer pipe damage because shell-side fluid induced vibration causes, improve the convection heat transfer' heat-transfer by convection efficiency of heat exchanger tube pass and shell-side fluid, and the heat-transfer pipe blockage problem avoiding tube fluid to cause because of fouling.
The purpose of this utility model realizes like this, a kind of high efficiency composition double spiral tube shell heat exchanger, comprise cylindrical shell, described cylindrical shell two ends are installed with tube sheet, some heat exchanger tubes are provided with in cylindrical shell between described tube sheet, axis in described cylindrical shell is also equidistantly provided with some helical baffles, described helical baffles is provided with some mating holes be convenient to heat exchanger tube and passed, left pipe box and right pipe box is sealedly connected with respectively outside the tube sheet at described cylindrical shell two ends, described left pipe box is provided with tube side fluid import, described right pipe box is provided with tube side fluid outlet, upper end, described cylindrical shell side is provided with shell-side fluid import, cylindrical shell opposite side lower end is provided with shell side fluid outlet, described heat exchanger tube is inside and outside wall spiral cyclone pipe vertically.
The beneficial effects of the utility model are: the shell-side fluid type of flow is the helical flow of continuous and stable by longitudinal direction, reduce shell-side fluid Pressure Drop; On radial section, produce velocity gradient in shell-side fluid spiral advance process, form radial turbulent flow, make heat exchanger tube shell-side fluid thinning in the delay of bottom, improve shell side convective heat-transfer coefficient; Compare with longitudinal flow mode, there is not heat exchange dead band, reduce dirt deposition, heat transfer performance is stablized; The constraint of helical baffles exchange heat pipe is strengthened, and obviously reduces the vibration of flow-induced, can extend the service life of heat exchanger; Tube side fluid is when flowing through cyclone pipe, and the eddy flow groove of tube wall can the flow direction of alter, and when acquiring a certain degree, fluid can be done to rotate centripetal flow, and center stream aggravation, makes the boundary layer of tube wall annex thinning, improve the convective heat-transfer coefficient in pipe; In addition, in cyclone pipe is managed, pipe outer variations in temperature and producing expands with heat and contract with cold, and causes eddy flow groove constantly to change, tube wall incrustation is easily peeled off, meanwhile, helical baffles and cyclone pipe with the use of, form the inside and outside augmentation of heat transfer simultaneously of pipe, further increase the overall heat exchange effect of heat exchanger.
As further improvement of the utility model, the helical baffles of each pitch is made up of fanning strip more than two panels or two panels.
Accompanying drawing explanation
Fig. 1 is high efficiency composition double spiral tube shell heat exchanger structural representation of the present utility model.
Fig. 2 is the structural representation of single spiral shell cabinet helical baffles.
Fig. 3 is the structural representation of change of current pipe.
Wherein, 1 left pipe box; 2 tube sheets; 3 heat exchanger tubes; 4 cylindrical shells; 5 helical baffles; 6 shell-side fluid imports; 7 tube side fluid outlets; 8 right pipe box; 9 tube side fluid imports; 10 shell side fluid outlet.
Detailed description of the invention
As Fig. 1, Fig. 2 and Figure 3 shows that high efficiency composition double spiral tube shell heat exchanger of the present utility model, cylindrical shell 4, cylindrical shell 4 two ends are installed with tube sheet 2, some heat exchanger tubes 3 are provided with in cylindrical shell 4 between tube sheet 2, axis in cylindrical shell 4 is also equidistantly provided with some helical baffles 5, helical baffles 5 is provided with some mating holes be convenient to heat exchanger tube 3 and passed, left pipe box 1 and right pipe box 8 is sealedly connected with respectively outside the tube sheet 2 at cylindrical shell 4 two ends, left pipe box 1 is provided with tube side fluid import 9, right pipe box 8 is provided with tube side fluid outlet 7, upper end, cylindrical shell 4 side is provided with shell-side fluid import 6, cylindrical shell 4 opposite side lower end is provided with shell side fluid outlet 10, heat exchanger tube 3 is inside and outside wall spiral cyclone pipe vertically, the helical baffles 5 of each pitch is made up of fanning strip more than two panels or two panels, in the present embodiment, adopts the sector plate structure of four 90 °.
The utility model is not limited to above-described embodiment; every on the basis of technical scheme disclosed in the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some to some technical characteristics wherein to replace and distortion, these are replaced and are out of shape all in the scope of the utility model protection.

Claims (2)

1. a high efficiency composition double spiral tube shell heat exchanger, comprise cylindrical shell, described cylindrical shell two ends are installed with tube sheet, some heat exchanger tubes are provided with in cylindrical shell between described tube sheet, axis in described cylindrical shell is also equidistantly provided with some helical baffles, described helical baffles is provided with some mating holes be convenient to heat exchanger tube and passed, left pipe box and right pipe box is sealedly connected with respectively outside the tube sheet at described cylindrical shell two ends, described left pipe box is provided with tube side fluid import, described right pipe box is provided with tube side fluid outlet, upper end, described cylindrical shell side is provided with shell-side fluid import, cylindrical shell opposite side lower end is provided with shell side fluid outlet, it is characterized in that, described heat exchanger tube is inside and outside wall spiral cyclone pipe vertically.
2. high efficiency composition double spiral tube shell heat exchanger according to claim 1, is characterized in that, the helical baffles of each pitch is made up of fanning strip more than two panels or two panels.
CN201320572385.XU 2013-09-16 2013-09-16 A kind of high efficiency composition double spiral tube shell heat exchanger Expired - Fee Related CN204438865U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320572385.XU CN204438865U (en) 2013-09-16 2013-09-16 A kind of high efficiency composition double spiral tube shell heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320572385.XU CN204438865U (en) 2013-09-16 2013-09-16 A kind of high efficiency composition double spiral tube shell heat exchanger

Publications (1)

Publication Number Publication Date
CN204438865U true CN204438865U (en) 2015-07-01

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Family Applications (1)

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CN (1) CN204438865U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106440865A (en) * 2016-09-28 2017-02-22 华中科技大学 Shell-and-tube heat exchanger with rotating baffle plates
CN110953715A (en) * 2019-12-25 2020-04-03 青岛海尔新能源电器有限公司 Dynamic descaling control method for heat pump hot water unit
CN111664730A (en) * 2020-06-08 2020-09-15 青岛畅隆电力设备有限公司 Spiral baffle plate heat exchanger with variable-pitch spiral fluted pipe
CN113028863A (en) * 2021-02-04 2021-06-25 淮阴工学院 J-shaped baffle plate heat exchanger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106440865A (en) * 2016-09-28 2017-02-22 华中科技大学 Shell-and-tube heat exchanger with rotating baffle plates
CN110953715A (en) * 2019-12-25 2020-04-03 青岛海尔新能源电器有限公司 Dynamic descaling control method for heat pump hot water unit
CN111664730A (en) * 2020-06-08 2020-09-15 青岛畅隆电力设备有限公司 Spiral baffle plate heat exchanger with variable-pitch spiral fluted pipe
CN111664730B (en) * 2020-06-08 2021-11-30 青岛畅隆电力设备有限公司 Spiral baffle plate heat exchanger with variable-pitch spiral fluted pipe
CN113028863A (en) * 2021-02-04 2021-06-25 淮阴工学院 J-shaped baffle plate heat exchanger

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Legal Events

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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: 20150701

Termination date: 20190916

CF01 Termination of patent right due to non-payment of annual fee