CN102121804A - Fixed tube-sheet heat exchanger with grooved parent tube surfaces - Google Patents
Fixed tube-sheet heat exchanger with grooved parent tube surfaces Download PDFInfo
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- CN102121804A CN102121804A CN2011100514355A CN201110051435A CN102121804A CN 102121804 A CN102121804 A CN 102121804A CN 2011100514355 A CN2011100514355 A CN 2011100514355A CN 201110051435 A CN201110051435 A CN 201110051435A CN 102121804 A CN102121804 A CN 102121804A
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Abstract
The invention relates to a fixed tube-sheet heat exchanger with grooved parent tube surfaces, which particularly consists of heat exchange tubes, wherein the inner surface of the heat exchange tube is provided with a sintered layer, and the outer surface of the heat exchange tube is uniformly grooved both radially and axially. The fixed tube-sheet heat exchanger comprises a shell, wherein the left end of the shell is provided with a left channel box, and the right end of the shell is provided with a right channel box; the upper top of one end, adjacent to the left channel box, of the shell is provided with a thermal fluid inlet, and the lower bottom, adjacent to the right channel box, of the shell is provided with a thermal fluid outlet; the upper top of the left channel box is provided with a cold fluid inlet, and the lower bottom of the right channel box is provided with a cold fluid outlet; the heat exchange tubes distributed along the axial length of the shell are arranged in the shell, and each heat exchange tube comprises a parent tube; a porous layer is arranged on the inner peripheral surface of the parent tube, and a grooved layer is arranged on the outer peripheral surface of the parent tube; and the grooved layer comprises a plurality of grooves uniformly distributed along the axial direction and the circumferential direction of the parent tube. The fixed tube-sheet heat exchanger has a simple and compact structure, can improve the heat transfer efficiency of the heat exchanger, reduces the running energy consumption and equipment investment of the heat exchanger, and is safe and reliable.
Description
Technical field
The present invention relates to a kind of heat exchanger, especially a kind of parent tube surface has the fixed tube-sheet exchanger of groove, the parent tube surface that specifically a kind of inner surface has sinter layer, the radial and axial heat exchanger tube of all evenly slotting of outer surface to constitute has the fixed tube-sheet exchanger of groove, be used for the employed shell-and-tube heat exchanger that the phase transformation boiling heat transfer is arranged of oil, chemical industry, metallurgy and Thermal Power Engineering, be a kind of C type fixed tube-sheet exchanger, belong to the technical field of heat exchanger.
Background technology
Heat exchanger is widely used in industrial departments such as chemical industry, chemical fertilizer, oil refining, power, building, food, and wherein shell-and-tube heat exchanger is occupied an leading position in the heat exchanger product of many kinds.This class heat exchanger tube adopts the plain tube of no augmentation of heat transfer effect usually, and heat transfer efficiency is low, power and high material consumption.Therefore research and develop the novel high-efficiency and energy-saving heat exchanger, will produce huge economic benefit and social benefit.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of parent tube surface to have the fixed tube-sheet exchanger of groove, it is simple and compact for structure, can improve the heat transfer efficiency of heat exchanger, reduces the operation energy consumption and the equipment investment of heat exchanger, and is safe and reliable.
According to technical scheme provided by the invention, described parent tube surface has the fixed tube-sheet exchanger of groove, comprises housing, and the left end of described housing is provided with left pipe box, and the right-hand member of housing is provided with right pipe box; Housing is provided with the hot fluid inlet corresponding to the upper top of contiguous left pipe box one end, and housing is provided with the hot fluid outlet corresponding to the lower bottom part of contiguous right pipe box; The upper top of left pipe box is provided with the cold fluid import, and the lower bottom part of right pipe box is provided with the cold fluid outlet; Be provided with in the described housing along the heat exchanger tube of housing shaft to distribution of lengths, described heat exchanger tube comprises parent tube, the inner peripheral surface of described parent tube is provided with porous layer, and the outer peripheral face of parent tube is provided with fluting layer, and described fluting layer comprises that some axially reach circumferential equally distributed groove along parent tube.
Form porous layer by high temperature sintering or pyrolytic coating layer of metal powder on the inner peripheral surface of described parent tube.The external diameter of described heat exchanger tube is Φ 10 ~ Φ 57mm, and porous layer thickness is 0.1 ~ 0.5mm, and the porosity in the porous layer is 30% ~ 60%.
The two ends of described heat exchanger tube are provided with the smooth section of symmetrical distribution.The length of described smooth section is L≤300mm.
Be provided with the left tube sheet that is used to install heat exchanger tube corresponding to joint portion in the described housing, be provided with the right tube sheet that is used to install heat exchanger tube corresponding to joint portion in the housing with right pipe box with left pipe box; The two ends of heat exchanger tube are installed in the housing by left tube sheet and right tube sheet respectively.
Top, bottom in the described housing are provided with the deflection plate that is used to support heat exchanger tube, and described deflection plate is spaced apart in housing, and deflection plate is perpendicular to the heat exchanger tube setting.The lower bottom part of described left pipe box is provided with discharging hole, and described discharging hole is connected with left pipe box is communicated with, housing is interior heat exchanger tube and right pipe box.
The upper top of described right pipe box is provided with exhaust outlet, and described exhaust outlet communicates with right pipe box is communicated with, housing (3) is interior heat exchanger tube and left pipe box.Described housing outer bottom is provided with the bearing that is used for support housing.
Advantage of the present invention: 1, traditional shell-and-tube heat exchanger adopts the smooth tube bank of no augmentation of heat transfer effect usually, and heat transfer efficiency is low.Heat exchanger tube outer wall of the present invention is provided with groove, and inwall is provided with porous layer, and therefore applicable to the occasion that the phase transformation boiling heat transfer is arranged, this heat-exchanging tube bundle is compared with traditional smooth tube bank, and total exchange coefficient of the heat exchanger can improve more than 40%.2, heat exchanger tube of the present invention can be processed to form on the basis of normal straight tube, adds man-hour, at first adopts mechanical means in its outer surface processing grooving, and Surface Machining forms porous layer within it again.3, after heat exchanger tube of the present invention is made, compare, can prolong the flowing time of fluid in pipe, increase the heat transfer outside a tube area simultaneously, reach the effect of abundant heat exchange with traditional light pipe with length.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the cutaway view of heat exchanger tube.
Fig. 3 is the outside drawing of heat exchanger tube.
The specific embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As Fig. 1 ~ shown in Figure 3: left pipe box 1 of the present invention, left tube sheet 2, housing 3, heat exchanger tube 4, deflection plate 5, right tube sheet 6, right pipe box 7, bearing 8, cold fluid import 9, hot fluid inlet 10, exhaust outlet 11, cold fluid outlet 12, hot fluid outlet 13, discharging hole 14, parent tube 15, fluting layer 16, porous layer 17, smooth section 18 and groove 19.
As shown in Figure 1: the left end of described housing 3 is provided with left pipe box 1, and the right-hand member of housing 3 is provided with right pipe box 7, and described right pipe box 7, left pipe box 1 and 3 of housings form the heat exchange cavity.Housing 3 is provided with hot fluid inlet 10 corresponding to the upper top of contiguous left pipe box 1 one ends, and housing 3 is provided with hot fluid outlet 13 corresponding to the lower bottom part of contiguous right pipe box 7 one ends, and described hot fluid outlet 13 is connected with hot fluid inlet 10 by the cavity in the housing 3.The upper top of left pipe box 1 is provided with cold fluid import 9, and the lower bottom part of left pipe box 1 is provided with the discharging hole 14 that is used to overhaul; Described discharging hole 14, cold fluid import 9 is connected with heat exchanger tube and right pipe box 7 in left pipe box 1, the housing 3 simultaneously.The upper top of right pipe box 7 is provided with exhaust outlet 11, and the lower bottom part of right pipe box 7 is provided with cold fluid outlet 12, and described cold fluid outlet 12, exhaust outlet 11 are connected with heat exchanger tube and left pipe box 1 in right pipe box 7, the housing 3 simultaneously.Housing 3 outer lower bottom parts are provided with the bearing 8 that is used to install support housing 3, and described bearing 8 is distributed in the lower bottom part outside the housing 3 symmetrically.Be provided with some heat exchanger tubes 4 that are used for heat exchange in the housing 3, described heat exchanger tube 4 distributes along the axial length of housing 3.For heat exchanger tube 4 is installed, be provided with left tube sheet 2 corresponding to joint portion in the housing 3 with left pipe box 1, be provided with right tube sheet 6 corresponding to joint portion in the housing 3 with right pipe box 7, the two ends of heat exchanger tube 4 are installed in respectively on left tube sheet 2 and the right tube sheet 6, thereby heat exchanger tube 4 is installed in the housing 3 by left tube sheet 2 and right tube sheet 6.In order to ensure the reliability that heat exchanger tube 4 is installed in housing 3, be provided with the deflection plate 5 that distributes perpendicular to heat exchanger tube 4 in the housing 3, described deflection plate 5 is setting spaced apart in housing 3 internal upper parts, bottom, deflection plate 5 semicirculars in shape; Heat exchanger tube 4 is supported on the deflection plate 5, and raising heat exchanger tube 4 is installed in the reliability in the housing 3.During concrete enforcement, one group of deflection plate 5 is positioned at the top of housing 3, another group deflection plate 5 is arranged at the bottom in the housing 3, the deflection plate 5 on top is provided with at interval with the deflection plate of bottom 5, so that fluid passes through, owing to the baffling effect of deflection plate 5, prolonged the mobile distance and the heat exchanger time of fluid, improved heat exchanger effectiveness.
As shown in Figures 2 and 3: described heat exchanger tube 4 comprises parent tube 15, the inner surface of described parent tube 15 is provided with porous layer 17, described porous layer 7 distributes along the inner surface of parent tube 15, by form porous layer 17 by high temperature sintering or pyrolytic coating layer of metal powder on the inner peripheral surface of parent tube 15; The outer peripheral face of parent tube 15 is provided with fluting layer 16, and described fluting layer 16 comprises some along parent tube 15 axial and circumferential equally distributed grooves 19, forms the fixed tube-sheet exchanger that C type parent tube surface has groove.The external diameter of described heat exchanger tube 4 is Φ 10 ~ Φ 57mm, and the thickness of porous layer 17 is 0.1 ~ 0.5mm, and the porosity in the porous layer 17 is 30% ~ 60%.The two ends of described heat exchanger tube 4 are provided with the smooth section 18 of symmetrical distribution, and the length of smooth section 18 is L≤300mm.
The efficient of boiling heat transfer depends on the core number of vaporizing on the heat exchange surface, and heat exchanger tube of the present invention is than more being easy to generate the bubble core on the smooth surface heat exchanger tube heat exchange surface, so but heat exchanger tube efficient hardening boiling heat transfer of the present invention.
The fluting layer 16 of heat exchanger tube 4 outer surfaces directly is processed to form on heat exchanger tube parent tube surface by lathe, the porous layer 17 of heat exchanger tube 4 inner surfaces high temperature sintering or pyrolytic coating layer of metal powder and form on the inner surface of heat exchanger tube 4 parent tubes.The tube bank that described heat exchanger tube 4 is formed is assembled in the circular shell 3, just forms the fixed tube-sheet exchanger that a kind of novel parent tube surface has groove.
As Fig. 1 ~ shown in Figure 3: during use, left pipe box 1, right pipe box 7 are installed in housing 3 corresponding two ends respectively.Housing 3 is installed in the desired position by bearing 8, and cold fluid outlet 12 and hot fluid outlet 13 link to each other with corresponding tube connector respectively.During work, cold fluid enters by the cold fluid import 9 of left pipe box 1 upper top, and hot fluid enters in the housing 3 by the hot fluid inlet 10 of housing 3 upper tops.After cold fluid and hot fluid enter in the housing 3, after the effect by heat exchanger tube 4 and deflection plate 5, can fully heat exchange in housing 3.Cold fluid and hot fluid after the abundant heat exchange, flow out by hot fluid outlet 13 and cold fluid outlet 12 in housing 3, finish heat transfer process.In housing 3 in the heat exchange, if when air pressure is big, the exhaust outlet 11 that can open on the right pipe box 7 discharges air pressure, guarantees the heat exchange safety in the housing 3.When the heat exchanging device overhauls if desired, open the discharging hole 14 of left pipe box 1 end, the liquid in the heat exchanger is all discharged, thereby can conveniently overhaul.
The present invention has following characteristics:
1, this novel parent tube surface has the inner traditional smooth heat-exchanging tube bundle of novel heat exchange pipe tube bank replacement that adopts of fixed tube-sheet exchanger of groove, and novel parent tube surface has the fixed tube-sheet exchanger horizontal positioned of groove.
2, the fluting layer of heat exchanger tube 4 outer surfaces can directly be processed to form on heat exchanger tube parent tube outer surface by lathe; The porous layer of inner surface can be on the inner surface of heat exchanger tube parent tube high temperature sintering or pyrolytic coating layer of metal powder and form.
3, the basepipe materials of heat exchanger tube 4 can be metal materials such as carbon steel, steel alloy, stainless steel and copper alloy, and above-mentioned metal dust can be iron-based powder and Cu-base powder.
4, compare with traditional plain tube bundle heat exchanger, the new type heat exchanger overall heat-transfer coefficient can improve more than 40%.
Claims (10)
- , a kind of parent tube surface has the fixed tube-sheet exchanger of groove, comprises housing (3), the left end of described housing (3) is provided with left pipe box (1), the right-hand member of housing (3) is provided with right pipe box (7); Housing (3) is provided with hot fluid inlet (10) corresponding to the upper top of contiguous left pipe box (1) one end, and housing (3) is provided with hot fluid outlet (13) corresponding to the lower bottom part of contiguous right pipe box (7); The upper top of left pipe box (1) is provided with cold fluid import (9), and the lower bottom part of right pipe box (7) is provided with cold fluid outlet (12); Feature is: be provided with the heat exchanger tube (4) that distributes along housing (3) axial length in the described housing (3), described heat exchanger tube (4) comprises parent tube (15), the inner peripheral surface of described parent tube (15) is provided with porous layer (17), the outer peripheral face of parent tube (15) is provided with fluting layer (16), and described fluting layer (16) comprises that some axially reach circumferential equally distributed groove (19) along parent tube (15).
- 2. have the fixed tube-sheet exchanger of groove according to the described parent tube of claim 1 surface, it is characterized in that: form porous layer (17) by high temperature sintering or pyrolytic coating layer of metal powder on the inner peripheral surface of described parent tube (15).
- 3. the fixed tube-sheet exchanger that has groove according to claim 1 or 2 described parent tube surfaces, it is characterized in that: the external diameter of described heat exchanger tube (4) is Φ 10 ~ Φ 57mm, the thickness of porous layer (17) is 0.1 ~ 0.5mm, and the porosity in the porous layer (17) is 30% ~ 60%.
- 4. have the fixed tube-sheet exchanger of groove according to the described parent tube of claim 1 surface, it is characterized in that: the two ends of described heat exchanger tube (4) are provided with the smooth section (18) of symmetrical distribution.
- 5. have the fixed tube-sheet exchanger of groove according to the described parent tube of claim 4 surface, it is characterized in that: the length of described smooth section (18) is L≤300mm.
- 6. the fixed tube-sheet exchanger that has groove according to the described parent tube of claim 1 surface, it is characterized in that: be provided with the left tube sheet (2) that is used to install heat exchanger tube (4) corresponding to joint portion in the described housing (3), be provided with the right tube sheet (6) that is used to install heat exchanger tube (4) corresponding to joint portion in the housing (3) with right pipe box (7) with left pipe box (1); The two ends of heat exchanger tube (4) are installed in the housing (3) by left tube sheet (2) and right tube sheet (6) respectively.
- 7. the fixed tube-sheet exchanger that has groove according to the described parent tube of claim 1 surface, it is characterized in that: top, bottom in the described housing (3) are provided with the deflection plate (5) that is used to support heat exchanger tube (4), described deflection plate (5) is spaced apart in housing (3), and deflection plate (5) is provided with perpendicular to heat exchanger tube (4).
- 8. parent tube according to claim 1 surface has the fixed tube-sheet exchanger of groove, it is characterized in that: the lower bottom part of described left pipe box (1) is provided with discharging hole (14), and heat exchanger tube and right pipe box (7) in described discharging hole (14) and left pipe box (1), the housing (3) are connected.
- 9. the fixed tube-sheet exchanger that has groove according to the described parent tube of claim 1 surface, it is characterized in that: the upper top of described right pipe box (7) is provided with exhaust outlet (11), and heat exchanger tube and left pipe box (1) in described exhaust outlet (11) and right pipe box (7), the housing (3) are connected.
- 10. have the fixed tube-sheet exchanger of groove according to the described parent tube of claim 1 surface, it is characterized in that: described housing (3) outer bottom is provided with the bearing (8) that is used for support housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100514355A CN102121804A (en) | 2011-03-04 | 2011-03-04 | Fixed tube-sheet heat exchanger with grooved parent tube surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100514355A CN102121804A (en) | 2011-03-04 | 2011-03-04 | Fixed tube-sheet heat exchanger with grooved parent tube surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102121804A true CN102121804A (en) | 2011-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100514355A Pending CN102121804A (en) | 2011-03-04 | 2011-03-04 | Fixed tube-sheet heat exchanger with grooved parent tube surfaces |
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| Country | Link |
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| CN (1) | CN102121804A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671399A (en) * | 2012-05-23 | 2012-09-19 | 中国化学工程第十一建设有限公司 | Reboiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088184C (en) * | 1993-07-07 | 2002-07-24 | 株式会社神户制钢所 | Heat exchanger tube for falling film evaporator |
| CN2798021Y (en) * | 2005-06-02 | 2006-07-19 | 高克联管件(上海)有限公司 | Two surface stengthened falling-film type heat transfer tube |
| CN201251384Y (en) * | 2008-07-09 | 2009-06-03 | 无锡化工装备总厂 | Fixed tube sheet heat exchanger |
| CN201401771Y (en) * | 2009-05-09 | 2010-02-10 | 中国石油化工集团公司 | Waste heat conversion boiler |
| CN201945229U (en) * | 2011-03-04 | 2011-08-24 | 无锡化工装备有限公司（原无锡化工装备总厂) | Fixed-tube-plate heat exchanger with grooves on surfaces of base tubes |
-
2011
- 2011-03-04 CN CN2011100514355A patent/CN102121804A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088184C (en) * | 1993-07-07 | 2002-07-24 | 株式会社神户制钢所 | Heat exchanger tube for falling film evaporator |
| CN2798021Y (en) * | 2005-06-02 | 2006-07-19 | 高克联管件(上海)有限公司 | Two surface stengthened falling-film type heat transfer tube |
| CN201251384Y (en) * | 2008-07-09 | 2009-06-03 | 无锡化工装备总厂 | Fixed tube sheet heat exchanger |
| CN201401771Y (en) * | 2009-05-09 | 2010-02-10 | 中国石油化工集团公司 | Waste heat conversion boiler |
| CN201945229U (en) * | 2011-03-04 | 2011-08-24 | 无锡化工装备有限公司（原无锡化工装备总厂) | Fixed-tube-plate heat exchanger with grooves on surfaces of base tubes |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671399A (en) * | 2012-05-23 | 2012-09-19 | 中国化学工程第十一建设有限公司 | Reboiler |
| CN102671399B (en) * | 2012-05-23 | 2014-07-16 | 中国化学工程第十一建设有限公司 | Reboiler |
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Application publication date: 20110713 |