CN100395506C - Tube sheet type heat exchanger - Google Patents
Tube sheet type heat exchanger Download PDFInfo
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- CN100395506C CN100395506C CNB2004101015496A CN200410101549A CN100395506C CN 100395506 C CN100395506 C CN 100395506C CN B2004101015496 A CNB2004101015496 A CN B2004101015496A CN 200410101549 A CN200410101549 A CN 200410101549A CN 100395506 C CN100395506 C CN 100395506C
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Abstract
The present invention relates to a shell-and-tube heat exchanger which is composed of a tube bundle, a casing, a tube pass inlet/outlet, a casing inlet/outlet, a front tube box, a back tube box, baffle plates for the tube boxes, a floating inner end socket and a supporting seat, wherein a heat transfer tube of the tube bundle is a flat tube, the flat surface of the flat tube is processed with V-shaped grooves, and the grooves and the tube axis forms an angle of larger than 0 DEG and smaller than 90 DEG, and adjacent grooves are alternatively arranged in a positive direction and in a reverse direction. The shell-and-tube exchanger taking the flat tube as the heat transfer element is widely suitable for places needing two kinds of fluid media to carry out heat exchange, such as petroleum refining, petrochemical industry, and other chemical equipment. Compared with an ordinary shell-and-tube heat exchanger, the present invention has the characteristics that the heat transfer can be obviously improved, and the structure is compact. Compared with a plate-type heat exchanger, the present invention has the characteristics of comparatively high bearing ability and comparatively easy fabrication. The present invention is a novel heat exchanger has high efficiency and a compact structure.
Description
Technical field
The present invention is a kind of shell-and-tube heat-exchange apparatus, is applicable to two kinds of places that fluid media (medium) carries out heat exchange in petroleum refining, petrochemical industry and other chemical plant installations.
Background technology
The heat-transfer pipe of at present used shell-and-tube heat exchanger is circular pipe, and according to national standard, the existing the most frequently used pipe diameter of shell-and-tube heat exchanger is two kinds of 25mm and 19mm.The advantage of this shell-and-tube heat exchanger be firm in structure, elasticity is big, shortcoming is that heat transfer efficiency is low, compactedness is poor, shared space is bigger.Occurred a kind of lamella heat exchanger in recent years, its feature is that higher compactedness and higher heat transfer efficiency are arranged, but that its shortcoming is the welding job amount of plate bundle is big, difficulty height, poor reliability; Its bearing capacity is also poor simultaneously, therefore fails to obtain large-area applying.
By retrieval, the patent documentation comparatively relevant with the present invention has DE2102744A and CN2049751U, wherein discloses the situation of using flat tube in the heat exchanger.But the disclosed heat transfer flat tube of these two pieces of documents is ganoid flat elliptical tube, and the planform of the heat transfer flat tube of announcing below with the present invention has difference in essence; Simultaneously, the structural shape of heat exchanger is also different, thereby effect is also different.Above-mentioned this ganoid flat elliptical tube heat-transfer effect is relatively poor, and bearing capacity is lower; Than being easier to incrustation, will cause that after operation a period of time heat transfer efficiency descends and resistance increases simultaneously.
Summary of the invention
The objective of the invention is to make the flat tube that adopts the specially made structure shape as heat transfer element, the shell-and-tube heat exchanger of the present invention that has the new structure pattern simultaneously, both have the good and general shell-and-tube heat exchanger advantage firm in structure of heat transfer efficiency height, compactedness of plate type heat exchanger concurrently, overcome plate type heat exchanger bearing capacity difference and the general shortcoming that the shell-and-tube heat exchanger heat transfer efficiency is low, structure is huge again.
For achieving the above object, the technical solution used in the present invention is: this shell-and-tube heat exchanger is made up of tube bank, housing, tube side import and tube side outlet, shell side import and shell side outlet, front header, outer skull, bobbin carriage dividing plate, float internal floating head and bearing etc.When between the medium of two kinds of different temperatures, conducting heat, a kind of medium is walked tube side, another kind of medium is walked shell side, finish the heat exchange of two media by the partition heat transfer, the heat-transfer pipe of its tube bank is a flat tube, and the flat horizontal surface of described flat tube is provided with the V-type groove, and groove and tubular axis line are greater than 0 °, less than certain certain angle of 90 °, adjacent grooves is positive and negative to be staggered.V-type groove on the described flat horizontal surface can process by prior art, as technologies such as compactings.Described flat tube is arranged in pipe row by flat direction, places the spacing lath then between pipe row, by the gap of spacing lath set casing journey passage; Between the outside, two ends of the length direction of described flat tube and pipe sealing strip is set, and fills weldering between the outside, make it to flush, whereby tube side and shell side are separated with pipe end at sealing strip, pipe end.
Owing to adopt said structure, this shell-and-tube heat exchanger is compared with general shell-and-tube heat exchanger, has the advantages that to significantly improve heat transfer efficiency and compact conformation, is a kind of novel heat exchange equipment of the high-efficiency compact that has wide application prospects.
Below in conjunction with accompanying drawing the present invention is done explanation in further detail.
Description of drawings
Accompanying drawing 1 shell-and-tube heat exchanger structural representation of the present invention;
Accompanying drawing 2 flat tube Pipe bundle structure schematic diagrames;
The planform schematic diagram of accompanying drawing 3 flat tubes;
V-shaped groove schematic diagram on the accompanying drawing 4 flat tube flat horizontal surfaces;
The cross sectional representation of accompanying drawing 5 flat tubes;
Flat tube Pareto diagram in accompanying drawing 6 heat exchangers;
The end connection layout of accompanying drawing 7 flat tubes tube bank;
Tube bank of accompanying drawing 8 flat tubes and tube sheet connection layout.
The specific embodiment
As shown in Figure 1, shell-and-tube heat exchanger of the present invention is made up of tube bank 1, housing 2, tube side import 4 and tube side outlet 7, shell side import 3 and shell side outlet 9, front header 5, outer skull 10, bobbin carriage dividing plate 6, float internal floating head 16 and bearing 8 etc., when between the medium of two kinds of different temperatures, conducting heat, a kind of medium is walked tube side, another kind of medium is walked shell side, conducts heat by partition and finishes the heat exchange of two media.
As Fig. 2, Fig. 3, shown in Figure 4, tube bank 1 is made up of the heat transfer element flat tube 13 of some, has all processed the V-type groove on the flat horizontal surface of every flat tube, and groove and tubular axis line be greater than 0 °, and less than 90 ° a certain angle, adjacent grooves is positive and negative to be staggered.
As shown in Figure 5, the cross section of flat tube is the Long Circle that two ends are circular arc, the cross section two ends arc radius R be 1mm to 5mm.The material of flat tube 13 adopts Fine Steel Casting iron, or high-alloy steel, or non-ferrous metal.Add man-hour when flat tube 13 adopts seamless steel pipe, its width b is by the parameter decision of selected seamless steel pipe, and its parameter area is: nominal diameter Dg is 10mm to 50mm, and wall thickness P is 0.5mm to 5mm.
As Fig. 6 and shown in Figure 2, at first flat tube 13 is arranged in pipe row by flat direction, between pipe row, place spacing lath 19 then, by the fixing gap of shell side passage of spacing lath 19.
As Fig. 7, Fig. 2 and shown in Figure 1, between the outside, flat tube two ends and pipe sealing strip 12 is set, and between the sealing strip 12 and the pipe end outside, fills weldering, make it to flush with pipe end, whereby tube side and shell side are separated.Simultaneously, along the length direction of flat tube, keeping at a certain distance away is provided with peripheral sealing strip 21 and middle spacer bar 14, in order to change the flow direction of shell fluid; The retainer ring 11 of restraining 1 entrance point is connected with shell flange 18 with entrance point flange 17, and tube bank 1 the other end has relocatable connection and colludes circle 15 and be connected with unsteady internal floating head 16; When operation, tube bank 1 can be floated in housing 2; When stopping work, can from the housing 2 of heat exchanger, extract out and keep in repair.
As shown in Figure 8, the connected mode of another kind of tube head is that flat tube length direction two ends head is designed to cross section for circular pipe head, and as common heat exchanger, the pipe head is connected with tube sheet 20 welding or expanded joint.
The housing of this heat exchanger, import and export, front and back bobbin carriage, internal floating head etc. can design according to process conditions, also can adopt existing national standard size, and the latter helps the transformation of existing apparatus.The size of tube bank can design by technological requirement, and its outside size for connection also can design according to existing national standard.
Flat tube heat exchanger of the present invention has good comprehensive performances, and the comparable common tube shell heat exchanger of its heat transfer coefficient improves more than 25% even one times under identical process conditions, and its comb area is Duoed more than 2 times than the common tube shell-type under identical volume.Adopt heat exchanger of the present invention to reduce investment outlay significantly and to take up room, it can bear higher pressure than lamella heat exchanger and make than being easier to, and is a kind of novel heat exchange equipment of the high-efficiency compact that has wide application prospects.
Embodiment:
In the heat transfer process of the deep fat of certain oil refining apparatus and cold oil, the treating capacity of deep fat is 95000kg//h, and temperature is as cold as 65 ℃ from 150 ℃; The temperature of cold oil rises to 119 ℃ from 30 ℃.Thermic load 4966000W.Under same process conditions, adopt the comparative result of two types of heat exchangers as shown in the table:
| Heat exchanger types | Diameter of the housing | The separate unit area | Heat transfer coefficient | Reference area | Required number |
| Unit | mm | m 2 | w/(m 2·k) | 2 m | - |
| The standard pipe shell-type | 600 | 95 | 293 | 514 | 6 |
| The present invention | 600 | 243 | 368 | 410 | 2 |
From above-mentioned calculating as can be known, adopt the heat transfer coefficient of heat exchanger of the present invention can improve 25%, compactedness greatly improves, and is all the heat exchanger of diameter 600mm, and the heat transfer area of shell-and-tube is 95m
2, and the area of heat exchanger of the present invention is 243m
2, employing common tube shell heat exchanger needs 6, adopts the present invention then only to need 2, and hence one can see that adopts heat exchanger of the present invention can save occupation of land space and investment significantly.
Claims (3)
1. shell-and-tube heat exchanger, be made up of tube bank (1), housing (2), tube side import (4) and tube side outlet (7), shell side import (3) and shell side outlet (9), front header (5), outer skull (10), bobbin carriage dividing plate (6), unsteady internal floating head (16) and bearing (8), the heat-transfer pipe of tube bank (1) is flat tube (13); When between the medium of two kinds of different temperatures, conducting heat, a kind of medium is walked tube side, another kind of medium is walked shell side, finish the heat exchange of two media by the partition heat transfer, it is characterized in that: the flat horizontal surface of described flat tube (13) is provided with the V-type groove, groove and tubular axis line are greater than 0 °, and less than 90 ° a certain angle, adjacent grooves is positive and negative to be staggered; Described flat tube (13) is arranged in pipe row by flat direction, places spacing lath (19) then between pipe row, by the fixing gap of shell side passage of spacing lath (19); Between the outside, two ends of the length direction of described flat tube (13) and pipe sealing strip (12) is set, and fills weldering between the outside, make it to flush, whereby tube side and shell side are separated with pipe end at sealing strip, pipe end.
2. shell-and-tube heat exchanger as claimed in claim 1, it is characterized in that keeping at a certain distance away along the length direction of described flat tube (13) is provided with peripheral sealing strip (21) and middle spacer bar (14), in order to change the flow direction of shell fluid.
3. shell-and-tube heat exchanger as claimed in claim 1, it is characterized in that being connected with shell flange (18) with inlet tube end flanges (17) along the retainer ring (11) of the entrance point of described tube bank (1), the other end of tube bank (1) has relocatable connection and colludes circle (15) and be connected with unsteady internal floating head (16); When operation, tube bank (1) can be floated in housing (2); When stopping work, can from the housing (2) of heat exchanger, extract out and keep in repair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101015496A CN100395506C (en) | 2004-12-23 | 2004-12-23 | Tube sheet type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004101015496A CN100395506C (en) | 2004-12-23 | 2004-12-23 | Tube sheet type heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1796917A CN1796917A (en) | 2006-07-05 |
| CN100395506C true CN100395506C (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004101015496A Active CN100395506C (en) | 2004-12-23 | 2004-12-23 | Tube sheet type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100395506C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068173A (en) * | 2019-05-20 | 2019-07-30 | 南京工程学院 | A kind of heat source tower heat pump special efficient flooded evaporator |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033019A (en) * | 1987-09-08 | 1989-05-24 | 挪威海德罗公司 | The manufacture method of radiator and the hollow profile made from this method |
| CN2049751U (en) * | 1989-04-17 | 1989-12-20 | 无锡市通用机械配件厂 | Ellipse tube-arraying type heat exchanger |
| CN1150645A (en) * | 1995-07-14 | 1997-05-28 | 三菱伸铜株式会社 | Heat-transfer pipe with internal groove |
| EP0845646A1 (en) * | 1993-03-26 | 1998-06-03 | Showa Aluminum Corporation | Refrigerant tubes for heat exchangers |
| US5799727A (en) * | 1997-05-29 | 1998-09-01 | Ford Motor Company | Refrigerant tubes for heat exchangers |
| CN2395241Y (en) * | 1999-11-18 | 2000-09-06 | 张文泼 | Floating heat exchanger |
| CN1284646A (en) * | 1999-08-12 | 2001-02-21 | 江苏双良科技有限公司 | Heat exchanger with reducing channel area |
| CN1455220A (en) * | 2003-05-27 | 2003-11-12 | 清华大学 | Tubulation and/or sepcial-section tubulation reforced heat exchange tube |
-
2004
- 2004-12-23 CN CNB2004101015496A patent/CN100395506C/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033019A (en) * | 1987-09-08 | 1989-05-24 | 挪威海德罗公司 | The manufacture method of radiator and the hollow profile made from this method |
| CN2049751U (en) * | 1989-04-17 | 1989-12-20 | 无锡市通用机械配件厂 | Ellipse tube-arraying type heat exchanger |
| EP0845646A1 (en) * | 1993-03-26 | 1998-06-03 | Showa Aluminum Corporation | Refrigerant tubes for heat exchangers |
| CN1150645A (en) * | 1995-07-14 | 1997-05-28 | 三菱伸铜株式会社 | Heat-transfer pipe with internal groove |
| US5799727A (en) * | 1997-05-29 | 1998-09-01 | Ford Motor Company | Refrigerant tubes for heat exchangers |
| CN1284646A (en) * | 1999-08-12 | 2001-02-21 | 江苏双良科技有限公司 | Heat exchanger with reducing channel area |
| CN2395241Y (en) * | 1999-11-18 | 2000-09-06 | 张文泼 | Floating heat exchanger |
| CN1455220A (en) * | 2003-05-27 | 2003-11-12 | 清华大学 | Tubulation and/or sepcial-section tubulation reforced heat exchange tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1796917A (en) | 2006-07-05 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sinopec Consulting Company Assignor: Engrg Construction Co., SINOPEC Contract fulfillment period: 2008.7.10 to 2014.7.10 contract change Contract record no.: 2009110000073 Denomination of invention: Shell-and-tube heat exchanger Granted publication date: 20080618 License type: Exclusive license Record date: 2009.5.7 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.7.10 TO 2014.7.10; CHANGE OF CONTRACT Name of requester: SINOPEC CONSULTING CORPORATION Effective date: 20090507 |
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| C56 | Change in the name or address of the patentee | ||
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Address after: 100029 Beijing City, Chaoyang District Hui Street No. 6 Co-patentee after: Sinopec Engineering Incorporation Patentee after: China Petrochemical Group Corp. Address before: 100029 Beijing City, Chaoyang District Hui Street No. 6 Co-patentee before: Engrg Construction Co., SINOPEC Patentee before: China Petrochemical Group Corp. |
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| ASS | Succession or assignment of patent right |
Owner name: SINOPEC ENGINEERING INCORPORATION Free format text: FORMER OWNER: SINOPEC GROUP Effective date: 20130105 Free format text: FORMER OWNER: SINOPEC ENGINEERING INCORPORATION Effective date: 20130105 |
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Free format text: CORRECT: ADDRESS; FROM: 100029 CHAOYANG, BEIJING TO: 100013 CHAOYANG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130105 Address after: 100013, Beijing Ann Hui North Lane Ann garden, No. 21 Patentee after: Sinopec Engineering Incorporation Address before: 100029 Beijing City, Chaoyang District Hui Street No. 6 Patentee before: China Petrochemical Group Corp. Patentee before: Sinopec Engineering Incorporation |