CN106524794A - Use method of heat exchanger tubes - Google Patents

Use method of heat exchanger tubes Download PDF

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Publication number
CN106524794A
CN106524794A CN201510573070.0A CN201510573070A CN106524794A CN 106524794 A CN106524794 A CN 106524794A CN 201510573070 A CN201510573070 A CN 201510573070A CN 106524794 A CN106524794 A CN 106524794A
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CN
China
Prior art keywords
tube
heat
pass partition
heat exchanger
cooling medium
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Pending
Application number
CN201510573070.0A
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Chinese (zh)
Inventor
刘海峰
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刘海峰
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Application filed by 刘海峰 filed Critical 刘海峰
Priority to CN201510573070.0A priority Critical patent/CN106524794A/en
Publication of CN106524794A publication Critical patent/CN106524794A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a use method of heat exchanger tubes. The use method comprises the following steps: pass partition plates of tubes are obliquely arranged, so that the strength of impact on the pass partition plates from a cooling medium can be reduced when the cooling medium passes; the inclinations of the pass partition plates range from 15 to 35 degrees, so that the impact strength of the cooling medium can be minimized; T-shaped reinforcing ribs mounted at the bottoms of the pass partition plates can enhance the stability and the impact resistance; grooves formed in the pass partition plates can play a flow guiding role, so that the cooling medium can quickly pass through the tubes to be subjected to heat exchange with a medium incoming from a second liquid inlet pipe; and the grooves are 5-12 mm in depth, so that the flow rate of the cooling medium can be optimal.

Description

A kind of using method of heat exchanger tube
Technical field
The present invention relates to a kind of heat exchanger, specifically refers to a kind of using method of heat exchanger tube.
Background technology
Heat exchanger is that the partial heat of hot fluid is passed to cold flow body, makes fluid temperature (F.T.) reach the heat exchange equipment of technological process set quota, also known as heat exchanger.Heat exchanger is widely used in boiler HVAC field as heat-transfer equipment, and with developing rapidly for power-saving technology, the species of heat exchanger is more and more.Shell-and-tube (also known as shell and tube) heat exchanger is that shell-and-tube heat exchanger is mainly made up of housing, tube bank, tube sheet and envelope first class sections, and how rounded housing is, internal that bundle of parallel tubes or serpentine pipe are housed, and tube bank two ends are fixed on tube sheet.The two kinds of fluids exchanged heat in shell-and-tube heat exchanger, in Bottomhole pressure, its stroke is referred to as tube side to one kind;A kind of to flow outside pipe, its stroke is referred to as shell side, and the wall of tube bank is heat-transfer area;The model of pipe differs, and process is generally diameter 16mm tri- models of 20mm or 25mm, and pipe thickness is generally 1mm, 1.5mm, 2mm and 2.5mm.Inlet heat exchanger, diameter is minimum can to arrive 8mm, and wall thickness is only 0.6mm, substantially increase heat exchange efficiency, and also market was gradually promoted and come at home this year.Shell-and-tube heat exchanger, helical bundle design, can increase turbulence effects to greatest extent, increase the asymmetrical design of heat exchange efficiency, interior shell and tube layer, and maximum can reach 4.6 times;This asymmetrical design, determines its extensive application in vapour-water field of heat exchange, and maximum heat exchange efficiency can reach 14000w/m2.k, greatly improve production efficiency, cost-effective.
Can be divided into by the textural classification of heat exchanger:Movable tube sheets heat exchanger, fixed tube-sheet exchanger, U-tube sheet heat exchanger, plate type heat exchanger etc..Be connected with housing due to restraining in fixed tube-sheet exchanger, U-tube sheet heat exchanger, plate type heat exchanger so that expanded by heating is restrained in heat exchange, when the temperature difference between two media is larger, can produce thermal (temperature difference) stress, and then cause tube bank impaired between tube bank and housing.
The content of the invention
The present invention provides a kind of using method of heat exchanger tube, convenient to improve heat exchange efficiency when heat exchange is processed, and extends the service life of tube bank.
The purpose of the present invention is by the following technical programs reaching:
The present invention pass partition being obliquely installed by tube bank first, impact dynamics of the cooling medium to pass partition can be reduced when cooling medium is flowed through, and the angle of inclination of pass partition is arranged in the range of 15 ~ 35 °, so that the impact dynamics of cooling medium be reduced to it is minimum, in the T-shaped reinforcement that pass partition bottom is installed, its stability and impact resistance can be strengthened;Groove on pass partition can play a part of water conservancy diversion, can make cooling medium quickly through tube bank, and the medium entered with the second feed liquor pipe flow carries out heat exchange process, and the depth of its further groove is 5 ~ 12 so that cooling medium flow velocity reaches optimal;Wherein, the tube bank includes housing and is arranged on the tube bank of enclosure interior, one end of tube bank is fixedly connected on housing, the other end of tube bank is freely arranged in housing, the top of housing is provided with the first feed tube and the second feed tube, and the bottom of housing is provided with the first drain pipe and the second feed tube, is also tiltedly installed with pass partition in shell one end, inclined plane of first feed tube just to pass partition, is additionally provided with T-shaped reinforcement in the bottom of pass partition.
The tube bank includes multiple heat-transfer pipes, fixed tube sheet and floating tubesheet, one end of heat-transfer pipe is arranged on fixed tube sheet, the other end of heat-transfer pipe is connected with floating tubesheet, hook circle and butterfly lid are installed on the floating tubesheet, hook circle is connected by flange with butterfly lid, also including the upper deflection plate and lower deflection plate of multiple arch, the upper deflection plate and lower deflection plate are disposed on multiple heat-transfer pipes, the central angle of upper deflection plate and lower deflection plate is 125 °, and the spacing between the adjacent upper deflection plate and lower deflection plate is 0.12 ~ 0.6m.
The heat-transfer pipe is arranged as equilateral triangle arrangement on floating tubesheet.
Sealing gasket is also equipped between butterfly lid and floating tubesheet.
The hook circle is Type B hook circle.
The thickness of the butterfly lid is 15 ~ 20.
Polymer composite is also coated with the floating tubesheet.
The present invention compared with prior art, had the following advantages that and beneficial effect:
1st, in the present invention, deflection plate and lower deflection plate can not only play a part of to support heat-transfer pipe, enclosure interior can also be separated into the Heat Room of multiple connections, strengthen the turbulent extent that fluid flows between pipe, enhancing heat transfer, heat transfer efficiency is improved, the wherein central angle of deflection plate is 125 °, and the spacing between two adjacent deflection plates is in 0.12 ~ 0.6m, so that the turbulent extent of medium reaches maximum horizontal between pipe, be conducive to improving heat exchange efficiency.
2nd, the polymer composite that the present invention is scribbled not only causes heat-transfer pipe to have stronger impact resistance and corrosion resistance, is also convenient for quick cleaning dirt of the heat-transfer pipe when safeguarding.
Description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes the part of the application, does not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of tube bank;
Fig. 2 is the A of Fig. 1 to sectional view;
Labelling and corresponding parts title in accompanying drawing:
1- heat-transfer pipes, 2- fixed tube sheets, 3- floating tubesheets, 4- hook circles, 5- butterfly lids, 6- deflection plates, 7- housings, 8- flanges, 9- sealing gaskets, the second feed tubes of 10-, the first feed tubes of 11-, the first drain pipes of 12-, the second drain pipes of 13-, 14- overflow baffles, 15- pass partitions.
Specific embodiment
Embodiment 1
As shown in Figure 1, the present invention pass partition being obliquely installed by tube bank first, impact dynamics of the cooling medium to pass partition can be reduced when cooling medium is flowed through, and the angle of inclination of pass partition is arranged in the range of 15 ~ 35 °, so that the impact dynamics of cooling medium be reduced to it is minimum, in the T-shaped reinforcement that pass partition bottom is installed, its stability and impact resistance can be strengthened;Groove on pass partition can play a part of water conservancy diversion, can make cooling medium quickly through tube bank, and the medium entered with the second feed liquor pipe flow carries out heat exchange process, and the depth of its further groove is 5 ~ 12 so that cooling medium flow velocity reaches optimal;Tube bank includes multiple heat-transfer pipes 1, fixed tube sheet 2 and floating tubesheet 3, one end of heat-transfer pipe 1 is arranged on fixed tube sheet 2, the other end of heat-transfer pipe 1 is connected with floating tubesheet 3, hook circle 4 and butterfly lid 5 are installed on the floating tubesheet 3, hook circle 4 is connected by flange 8 with butterfly lid 5, also including the upper deflection plate 6 and lower deflection plate 10 of multiple arch, the upper deflection plate 6 and lower deflection plate 10 are disposed on multiple heat-transfer pipes 1, the central angle of upper deflection plate 6 and lower deflection plate 10 is 125 °, spacing between the adjacent upper deflection plate 6 and lower deflection plate 10 is 0.12 ~ 0.6m;Sealing gasket 9 is also equipped between butterfly lid 5 and floating tubesheet 3;The heat-transfer pipe 1 is arranged as equilateral triangle arrangement on floating tubesheet.The one end restrained in the present invention is fixed with housing 7, and the tube sheet of the other end can be in free floating in the housing 7 of heat exchanger, housing 7 and tube bank are free to thermal expansion, therefore when the temperature difference of two media is larger, thermal (temperature difference) stress will not be produced between tube bank and housing 7, it is to avoid heat-transfer pipe 1 grade part is damaged, and butterfly lid 5 is designed to removable structure, heat-transfer pipe 1 is easily inserted into or is extracted out, improve maintenance and cleaning efficiency;The heat-transfer pipe 1 of equilateral triangle arrangement can cause the outer medium for flowing through of pipe quickly and evenly to flow through tube bank, the heat-transfer pipe 1 near entrance is avoided to be subject to manage the temperature difference increase of the temperature with medium in heat-transfer pipe 1 of outer medium, cause larger temperature stress poor, cause heat-transfer pipe 1 to be damaged;The upper deflection plate 6 and lower deflection plate 10 of multiple arch are set on heat-transfer pipe 1, and upper deflection plate 6 and lower deflection plate 10 interval are inside heat exchanger shell 7, upper deflection plate 6 and lower deflection plate 10 can not only play a part of to support heat-transfer pipe 1, the Heat Room of multiple connections can also will be separated into inside housing 7, strengthen the turbulent extent that fluid flows between pipe, enhancing heat transfer, improve heat transfer efficiency, the central angle for wherein going up deflection plate 6 and lower deflection plate 10 is 125 °, the upper spacing between deflection plate 6 and lower deflection plate 10 of adjacent two is in 0.12 ~ 0.6m, so that the turbulent extent of medium reaches maximum horizontal between pipe, be conducive to improving heat exchange efficiency;Floating tubesheet 3 is gripped by flange 8 by butterfly lid 5 with hook circle 4, ensures the seal of tube bank when the sealing gasket 9 of setting can cause floating tubesheet 3 to fluctuate, and prevents from managing inside and outside medium being mutually mixed, and affects heat exchange efficiency.
Wherein, the thickness of butterfly lid 5 is 15 ~ 20, butterfly lid 5 is used for point journey connection of heat-transfer pipe 1, thickness is arranged in the range of 15 ~ 20, can ensure to restrain stable performance under prolonged use, when thickness is less than 15, for the impact resistance that heat-transfer pipe 1 manages interior medium and corrosion resistance are reduced, and then service life is caused to reduce;When thickness is more than 20 so that the weight of whole tube bank increases, and when there is larger thermal (temperature difference) stress, floating tubesheet 3 fluctuates slowly, the thermal (temperature difference) stress for producing is not offset, and then causes heat-transfer pipe 1 to be damaged.
Above-described specific embodiment; the purpose of the present invention, technical scheme and beneficial effect are further described; it is be should be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc., should be included within the scope of the present invention.

Claims (6)

1. a kind of using method of heat exchanger tube, it is characterised in that:Pass partition being obliquely installed by what is restrained first, impact dynamics of the cooling medium to pass partition can be reduced when cooling medium is flowed through, and the angle of inclination of pass partition is arranged in the range of 15 ~ 35 °, so that the impact dynamics of cooling medium be reduced to it is minimum, in the T-shaped reinforcement that pass partition bottom is installed, its stability and impact resistance can be strengthened;Groove on pass partition can play a part of water conservancy diversion, can make cooling medium quickly through tube bank, and the medium entered with the second feed liquor pipe flow carries out heat exchange process, and the depth of its further groove is 5 ~ 12 so that cooling medium flow velocity reaches optimal;Wherein, the tube bank includes housing(7)Be arranged on housing(7)Internal tube bank, one end of tube bank is fixedly connected on housing(7)On, the other end of tube bank is freely arranged on housing(7)It is interior, housing(7)Top be provided with the first feed tube(11)With the second feed tube(10), housing(7)Bottom be provided with the first drain pipe(11)With the second feed tube(10), in housing(7)One end is also tiltedly installed with pass partition(15), first feed tube(11)Just to pass partition(15)Inclined plane, in pass partition(15)Bottom be additionally provided with T-shaped reinforcement.
2. the using method of a kind of heat exchanger tube according to claim 1, it is characterised in that:The tube bank includes multiple heat-transfer pipes(1), fixed tube sheet(2)And floating tubesheet(3), heat-transfer pipe(1)One end be arranged on fixed tube sheet(2)On, heat-transfer pipe(1)The other end and floating tubesheet(3)Connection, the floating tubesheet(3)On hook circle is installed(4)With butterfly lid(5), hook circle(4)With butterfly lid(5)By flange(8)Connection, also including the deflection plate of multiple arch(6), the deflection plate(6)Misaligned interval is arranged on multiple heat-transfer pipes(1)On, deflection plate(6)Central angle be 125 °, the adjacent baffle(6)Between spacing be 0.12 ~ 0.6m.
3. the using method of a kind of heat exchanger tube according to claim 2, it is characterised in that:In the floating tubesheet(3)On be additionally provided with overflow baffle(14), the overflow baffle(14)For stairstepping.
4. the using method of a kind of heat exchanger tube according to claim 1, it is characterised in that:In butterfly lid(5)With floating tubesheet(3)Between be also equipped with sealing gasket(9).
5. the using method of a kind of heat exchanger tube according to claim 4, it is characterised in that:The butterfly lid(5)Thickness be 15 ~ 20.
6. the using method of a kind of heat exchanger tube according to claim 3, it is characterised in that:In the floating tubesheet(3)On be also coated with polymer composite.
CN201510573070.0A 2015-09-10 2015-09-10 Use method of heat exchanger tubes Pending CN106524794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510573070.0A CN106524794A (en) 2015-09-10 2015-09-10 Use method of heat exchanger tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510573070.0A CN106524794A (en) 2015-09-10 2015-09-10 Use method of heat exchanger tubes

Publications (1)

Publication Number Publication Date
CN106524794A true CN106524794A (en) 2017-03-22

Family

ID=58345762

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510573070.0A Pending CN106524794A (en) 2015-09-10 2015-09-10 Use method of heat exchanger tubes

Country Status (1)

Country Link
CN (1) CN106524794A (en)

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C06 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170322

WD01 Invention patent application deemed withdrawn after publication