CN203881183U - Heat exchanger with inclined holes formed in baffle plates - Google Patents

Heat exchanger with inclined holes formed in baffle plates Download PDF

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Publication number
CN203881183U
CN203881183U CN201420206417.9U CN201420206417U CN203881183U CN 203881183 U CN203881183 U CN 203881183U CN 201420206417 U CN201420206417 U CN 201420206417U CN 203881183 U CN203881183 U CN 203881183U
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CN
China
Prior art keywords
shell
heat exchanger
tube
plate
baffle plates
Prior art date
Application number
CN201420206417.9U
Other languages
Chinese (zh)
Inventor
喻九阳
叶萌
郑小涛
林纬
徐成
郑鹏
龚程
Original Assignee
武汉工程大学
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.)
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Application filed by 武汉工程大学 filed Critical 武汉工程大学
Priority to CN201420206417.9U priority Critical patent/CN203881183U/en
Application granted granted Critical
Publication of CN203881183U publication Critical patent/CN203881183U/en

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Abstract

The utility model provides a heat exchanger with inclined holes formed in baffle plates. The heat exchanger comprises a shell. An upper end socket and a lower end socket are arranged at the two ends of the shell. A shell pass inlet, a shell pass outlet, a tube pass inlet and a tube pass outlet are formed in the shell. Heat exchange tubes, an upper tube plate, a lower tube plate and the multiple baffle plates are installed inside the shell. The upper tube plate and the lower tube plate are used for positioning the heat exchange tubes. Each baffle plate is a single arch-shaped baffle plate, and is shaped like a circle with notches. The installation direction of the baffle plates is parallel to the upper tube plate and the lower tube plate. The baffle plates are arranged and extend in the length direction of the heat exchange tubes. Installation positions of the baffle plates are arranged on the two sides of the inner wall of the shell in a staggered mode respectively. The baffle plates are provided with the inclined holes and heat exchange tube holes for the heat exchange tubes to penetrate through. The inclined holes formed in every two vertically adjacent baffle plates are opposite in inclining direction, and are inclined leftwards and rightwards respectively. The heat exchanger with the inclined holes formed in the baffle plates can remarkably reduce shell pass pressure drop and improve comprehensive heat transfer performance, and is good in energy conservation and consumption reduction effect.

Description

A kind of deflection plate is driven the heat exchanger of oblique well format
Technical field
The utility model relates to technical field of heat exchangers, is specifically related to the heat exchanger that a kind of deflection plate that can further strengthen shell side heat transfer and reduction shell-side pressure drop is opened oblique well format.
Background technology
The shell-and-tube heat exchanger of commercial Application often obtains good heat transfer effect by deflection plate is set at shell side at present, but this structure can produce larger flow resistance, power consumption is increased, and shell side there will be and compared with large flow dead, cause local heat transfer coefficient reduction and fouling, corrosion.But adopt the shell-and-tube heat exchanger of single segmental baffle, because of advantages such as it are simple in structure, it is easy to maintenance to manufacture, reliability is high and cheap, therefore in the enterprises such as oil refining, chemical industry, be still widely used at present, segmental baffle improved or optimized and there is Practical significance and economic benefit.
Based on this, thereby should seek deflection plate to improve and obtain new and effective shell-and-tube heat exchanger.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency for above-mentioned existence, provides a kind of and can reduce significantly shell-side pressure drop and improve complex heat transfer performance, and the deflection plate with good energy conservation and consumption reduction effects is driven the heat exchanger of oblique well format.
The utility model solves the technical scheme that its technical problem adopts:
A kind of deflection plate is driven the heat exchanger of oblique well format, include housing, housing two ends are provided with low head, on housing, also having shell side imports and exports, tube side is imported and exported, heat exchanger tube is installed in housing, the upper lower perforated plate that exchange heat pipe plays the role of positioning, a plurality of deflection plates, it is characterized in that, described deflection plate is single segmental baffle, it is shaped as notched circle, its installation direction is parallel with upper lower perforated plate and extend along a plurality of arrangements of heat exchanger tube length direction, its installation site is listed in inner walls both sides for staggered minute, the heat exchange pore that has oblique hole on deflection plate and pass for heat exchanger tube, wherein the incline direction of opening oblique hole of neighbouring two deflection plates is contrary, be respectively left and be tilted to the right.
In such scheme, described shell side is imported and exported and is arranged on housing, and tube side is imported and exported and is arranged on low head.
In such scheme, the number in described oblique hole is less than the number of heat exchange pore.
In such scheme, the area in described oblique hole is less than the area of heat exchange pore.
In such scheme, described housing two ends are fixedly connected with upper lower perforated plate respectively, and upper low head is connected with upper lower perforated plate again, and the two ends up and down of heat exchanger tube are fixed on tube sheet.
The selection principle of opening the perforate size and number of oblique hole deflection plate described in the utility model is: open comprehensive shell side convection transfer rate, shell side heat output, heat exchanger logarithmic mean temperature difference (LMTD), the isoparametric situation of change of shell side heat transfer and flow friction characteristics combination property weighed behind oblique hole, choose the best oblique hole size of opening; The principle of opening oblique hole bore diameter of baffle plate layout is: to deflection plate not the heat exchanger of perforate analyze, find out shell fluid flow dead band, in the perforate of position, flow dead; Follow the best perforate deflection plate that above-mentioned two principles obtain and be conducive to strengthen shell side heat-transfer capability, reduce flow resistance, thereby realize, save energy consumption.
Operation principle of the present utility model is: at the privileged site of deflection plate, open behind the oblique hole of right quantity and diameter, tapping can produce oblique jet, after making fluid leave oblique hole, form very soon turbulent flow, and fluid is around produced to the effect of entrainmenting, thereby shell-side fluid just can reach local turbulence under low reynolds number, reduce or eliminate the viscous flow dead band of shell side; In addition, open the fluid that affects deflection plate Dorsal root part that oblique hole can be larger, make its regional fluid become turbulent flow from laminar condition, simultaneously, open longitudinal circulation area that oblique hole has increased shell-side fluid, the lateral flow that becomes single segmental baffle supporting is the part longitudinal flow perpendicular to heat exchanger tube, thereby reduces shell fluid flow resistance, reduce incrustation and corrosion, and make the heat transfer combination property of shell side obtain raising to a certain extent.
The utility model major advantage is:
1) open the use of oblique hole deflection plate, can play good flow-disturbing interaction energy to Dorsal root segment fluid flow and further strengthen shell side heat transfer, reduce shell fluid flow resistance, reduce incrustation and corrosion;
2) on deflection plate, open rectangular opening simple, cost increase is very micro-, has good feasibility.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the deflection plate surface texture schematic diagram of the utility model embodiment;
Fig. 3 is upper deflection plate cutaway view in Fig. 1;
Fig. 4 is lower deflection plate cutaway view in Fig. 1;
In figure: 1, upper cover, 2, tube side outlet, 3, upper perforated plate, 4, housing, 5, heat exchanger tube, 6, deflection plate, 7, shell side outlet, 8, lower perforated plate, 9, low head, 10, tube side import, 11, shell side import, 12, heat exchange pore, 13, oblique hole.
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is further described:
Deflection plate as shown in Fig. 1 Fig. 2 Fig. 3 Fig. 4 is driven the heat exchanger of oblique well format, include upper cover 1, tube side outlet 2, upper perforated plate 3, housing 4, heat exchanger tube 5, deflection plate 6, shell side outlet 7, lower perforated plate 8, low head 9, tube side import 10, shell side import 11, housing 4 two ends respectively with upper perforated plate 3, lower perforated plate 8 is connected, upper cover 1 is connected with lower perforated plate 8 with upper perforated plate 3 respectively with low head 9 again, the two ends up and down of heat exchanger tube 5 are fixed on upper perforated plate 3 and lower perforated plate 8, deflection plate 6 is fixed on housing 4 inside, deflection plate 6 is single segmental baffle, it is shaped as notched circle, its installation direction is parallel with lower perforated plate 8 with upper perforated plate 3 and extend along a plurality of arrangements of heat exchanger tube 5 length direction, its installation site is listed in housing 4 inwall both sides for staggered minute, the heat exchange pore 12 that has oblique hole 13 on deflection plate 6 and pass for heat exchanger tube 5, wherein the incline direction in the oblique hole 13 of neighbouring two deflection plates is contrary, be respectively left and be tilted to the right, shell side import 11 and shell side outlet 7 are arranged on housing 4, and tube side import 10 and tube side outlet 2 are arranged on upper cover 1 and low head 9.
In the present embodiment, the number in described oblique hole is less than the number of heat exchange pore, and the area in oblique hole is also less than the area of heat exchange pore.
The course of work of the present utility model is: shell-side fluid enters housing 4 from shell side import 11, part fluid produces fluid jet effect through oblique hole 13, after making fluid leave oblique hole 13, form soon turbulent flow, and the fluid of jet produces to fluid around the effect of entrainmenting, under low reynolds number, shell-side fluid just can reach local turbulence, reduces or eliminate the viscous flow dead band of shell fluid flow and heat transfer; In addition, oblique hole 13 can be larger the fluid that affects deflection plate Dorsal root part, make its regional fluid become turbulent flow from laminar condition, simultaneously, increased longitudinal circulation area of shell-side fluid, the lateral flow that becomes single segmental baffle supporting is the part longitudinal flow perpendicular to heat exchanger tube, thereby reduce shell fluid flow resistance, reduce incrustation and corrosion, make the heat transfer combination property of shell side obtain raising to a certain extent, another part fluid is walked around deflection plate 6 and is flowed, and the fluid of shell side flows out via shell side outlet 7.Tube side fluid first enters low head 9 through tube side import 10, enters heat exchanger tube 5 in low head 9, then flows into upper cover 1, then through tube side outlet 2, flows out from upper cover 1.
More than explanation is only Application Example of the present utility model, certainly can not limit with this interest field of the utility model, and the equivalence of therefore doing according to the utility model claim changes, and still belongs to protection domain of the present utility model.

Claims (5)

1. a deflection plate is driven the heat exchanger of oblique well format, include housing, housing two ends are provided with low head, on housing, also having shell side imports and exports, tube side is imported and exported, heat exchanger tube is installed in housing, the upper lower perforated plate that exchange heat pipe plays the role of positioning, a plurality of deflection plates, it is characterized in that, described deflection plate is single segmental baffle, it is shaped as notched circle, its installation direction is parallel with upper lower perforated plate and extend along a plurality of arrangements of heat exchanger tube length direction, its installation site is listed in inner walls both sides for staggered minute, the heat exchange pore that has oblique hole on deflection plate and pass for heat exchanger tube, wherein the incline direction of opening oblique hole of neighbouring two deflection plates is contrary, be respectively left and be tilted to the right.
2. deflection plate as claimed in claim 1 is driven the heat exchanger of oblique well format, it is characterized in that, described shell side is imported and exported and is arranged on housing, and tube side is imported and exported and is arranged on low head.
3. deflection plate as claimed in claim 1 is driven the heat exchanger of oblique well format, it is characterized in that, the number in described oblique hole is less than the number of heat exchange pore.
4. deflection plate as claimed in claim 1 is driven the heat exchanger of oblique well format, it is characterized in that, the area in described oblique hole is less than the area of heat exchange pore.
5. deflection plate as claimed in claim 1 is driven the heat exchanger of oblique well format, it is characterized in that, described housing two ends are fixedly connected with upper lower perforated plate respectively, and upper low head is connected with upper lower perforated plate again, and the two ends up and down of heat exchanger tube are fixed on tube sheet.
CN201420206417.9U 2014-04-25 2014-04-25 Heat exchanger with inclined holes formed in baffle plates CN203881183U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420206417.9U CN203881183U (en) 2014-04-25 2014-04-25 Heat exchanger with inclined holes formed in baffle plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420206417.9U CN203881183U (en) 2014-04-25 2014-04-25 Heat exchanger with inclined holes formed in baffle plates

Publications (1)

Publication Number Publication Date
CN203881183U true CN203881183U (en) 2014-10-15

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Application Number Title Priority Date Filing Date
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105737650A (en) * 2016-03-07 2016-07-06 南京航空航天大学 Spirally slotted hole plate heat exchanger and heat exchange method thereof
CN108895864A (en) * 2018-04-11 2018-11-27 南京师范大学 Baffle plate component and shell-and-tube heat exchanger including this component
CN110631390A (en) * 2019-10-08 2019-12-31 广东纽恩泰新能源科技发展有限公司 Heat exchanger
CN110822779A (en) * 2019-10-08 2020-02-21 浙江省海洋水产研究所 Shelf type quick-freezing device for fish catch on sea catch boat
CN111043897A (en) * 2019-12-31 2020-04-21 华北电力大学 Y-shaped and semi-Y-shaped combined perforated baffle plate heat exchanger

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105737650A (en) * 2016-03-07 2016-07-06 南京航空航天大学 Spirally slotted hole plate heat exchanger and heat exchange method thereof
CN105737650B (en) * 2016-03-07 2017-07-11 南京航空航天大学 Helical groove hole sheet heat exchanger and its heat-exchange method
CN108895864A (en) * 2018-04-11 2018-11-27 南京师范大学 Baffle plate component and shell-and-tube heat exchanger including this component
CN108895864B (en) * 2018-04-11 2020-02-07 南京师范大学 Baffle assembly and shell-and-tube heat exchanger comprising such an assembly
CN110631390A (en) * 2019-10-08 2019-12-31 广东纽恩泰新能源科技发展有限公司 Heat exchanger
CN110822779A (en) * 2019-10-08 2020-02-21 浙江省海洋水产研究所 Shelf type quick-freezing device for fish catch on sea catch boat
CN111043897A (en) * 2019-12-31 2020-04-21 华北电力大学 Y-shaped and semi-Y-shaped combined perforated baffle plate 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: 20141015

Termination date: 20160425