CN105135914B - Detachable tube bundle type fixed tube-sheet heat exchanger - Google Patents
Detachable tube bundle type fixed tube-sheet heat exchanger Download PDFInfo
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- CN105135914B CN105135914B CN201510514341.5A CN201510514341A CN105135914B CN 105135914 B CN105135914 B CN 105135914B CN 201510514341 A CN201510514341 A CN 201510514341A CN 105135914 B CN105135914 B CN 105135914B
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- Prior art keywords
- flange
- tube
- lug boss
- positive stop
- stop lug
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- 238000007789 sealing Methods 0.000 claims description 26
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 abstract description 2
- 235000015095 lager Nutrition 0.000 abstract 1
- 238000007667 floating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000737 periodic Effects 0.000 description 1
- 230000000452 restraining Effects 0.000 description 1
Abstract
The invention belongs to the technical field of heat exchangers, and provides a detachable tube bundle type fixed tube-sheet heat exchanger. The detachable tube bundle type fixed tube-sheet heat exchanger comprises a front-end tube box (1), a front tube sheet (2), a shell (3), heat exchange tubes (4), baffle plates (5), a rear tube sheet (6) and a rear-end tube box (7). The front-end tube box (1) is of a structure with a tube box flange I (10) at the rear end. The front tube sheet (2) is a round plate with the diameter lager than the inner diameter of the shell (3) and is located between a shell flange I (11) and the tube box flange I (10). A conical face gradually increasing in diameter from left to right is arranged on the rear portion of the inner diameter face of a shell flange II (13) at the rear end of the shell. The rear-end tube box is of a structure with a tube box flange II (14) at the front end. The rear tube sheet (6) is a round plate with the diameter smaller than the inner diameter of the shell and is located between the shell flange II (13) and the tube box flange II (14). The technological requirements for tube bundle cleaning, maintenance and replacement are met.
Description
Technical field
The invention belongs to technical field of heat exchangers, and in particular to a kind of detachable bundled tube fixed tube-sheet exchanger.
Background technology
The heat exchanger commonly used in industry at present has fixed tube-sheet exchanger（Fig. 1）, U-shaped pipe heat exchanger and floating head type
Three kinds of forms of heat exchanger；Fixed tube-sheet exchanger is restrained without U-bend pipeline section for U-shaped pipe heat exchanger, is reduced
Heat exchanger tube stress corrosion causes the probability revealed；It is restrained without the complicated structure in floating head end relative to movable tube sheets heat exchanger；Cause
And fixed tube-sheet exchanger because its dependable performance, simple structure, be easy to manufacture the features such as, become the one kind being most widely used
Heat exchanger.But fixed tube-sheet exchanger there is also certain deficiency relative to U-shaped pipe heat exchanger, movable tube sheets heat exchanger,
Restrain two ends to be fixed on front tube sheet, back tube sheet, it is impossible to from external shell extract tube bundle sections out, it is such as special in some media
Different occasion, needs even change to restraining periodic cleaning and to be safeguarded, fixed tube-sheet exchanger cannot meet such technique
Need；Now will only restrain and housing will all be changed, so be greatly lowered the economy of fixed tube-sheet exchanger.
The content of the invention
To solve above-mentioned technical problem, the purpose of the present invention is to propose to a kind of detachable bundled tube fixed tube sheet type heat exchange
Device.
The present invention is adopted the following technical scheme that to complete above-mentioned purpose：
A kind of detachable bundled tube fixed tube-sheet exchanger, described fixed tube-sheet exchanger includes front tube
Case, front tube sheet, housing, heat exchanger tube, deflection plate, back tube sheet and rear end header；Described housing is that rear and front end has respectively shell
The structure of body flange；There is positive stop lug boss I on the outer face of the shell flange I of housing forward end, described positive stop lug boss I is
Annular, and the internal diameter of the positive stop lug boss I matches somebody with somebody with the external diameter kissing of front tube sheet；Described front-end pipe box has bobbin carriage method for rear end
Blue I structure；There is positive stop lug boss II on the rear end face of the channel flange I, the structure of described positive stop lug boss II with it is spacing
The structure of boss I is identical；Described front tube sheet is the circular slab with diameter greater than housing inner diameter, positioned at shell flange I and bobbin carriage method
Between blue I, and it is carried out by positive stop lug boss I, positive stop lug boss II radially spacing；
Shell flange II positioned at housing rear end is connected with described barrel soldering；After the aperture surface of the shell flange II
Portion is the conical surface in flaring footpath from left to right；Described rear end header has the structure of channel flange II for front end；The bobbin carriage method
There is positive stop lug boss III on blue II front end face；Described positive stop lug boss III for annular, and the internal diameter of the positive stop lug boss III with
The external diameter kissing of back tube sheet is matched somebody with somebody；Described back tube sheet is less than the circular slab of housing inner diameter, the periphery of the back tube sheet for diameter
The upper annular short slot having to install snap ring；Described back tube sheet is located between shell flange II and channel flange II, and by
Positive stop lug boss III carries out radially spacing to it；Described shell flange II is integrated with channel flange II by bolt connection；It is described
Back tube sheet and described shell flange II between by resilient sealing ring sealing；Described elastic sealing ring is and shell flange II
The cone-shaped ring matched somebody with somebody of conical surface kissing；Sealed by seal washer II between described back tube sheet and channel flange II；Described card
Ring is the circulus that cross sectional shape is " L " type, in the annular short slot of back tube sheet periphery, to hold out against described bullet
Property sealing ring.
The expansion joint to carry out axial displacement compensation to housing is provided with described housing；The two ends of the expansion joint
It is connected with housing respectively.
A kind of detachable bundled tube fixed tube-sheet exchanger proposed by the present invention, front tube sheet, back tube sheet are using by managing
Plate flange and the structure of shell flange clamping, have fixed tube-sheet exchanger and restrain the function that can be taken out, and disclosure satisfy that to pipe
Shu Qingli, maintenance and the process requirements changed, housing parts will not be scrapped because tube bank is changed, and can reuse reuse, tool
There is good economic benefit；The thin-walled expansion joint of little rigidity, big displacement is set on described housing to guarantee whole cylinder tool
There are less axial rigidity and axial displacement compensation ability, enough axial displacement compensation manufacture deviations can be produced, it is ensured that
Cylinder front and back ends flange sealing surface can effectively coordinate with forward and backward tube plate sealing face.
Description of the drawings
Fig. 1 is the structural representation that fixed tube-sheet exchanger is commonly used in prior art.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the enlarged drawing of I part in Fig. 2.
Fig. 4 is in Fig. 2 II enlarged drawing.
In figure：1st, front-end pipe box, 2, front tube sheet, 3, housing, 4, heat exchanger tube, 5, deflection plate, 6, back tube sheet, 7, after
End pipe case, 8, saddle, 9, thin-walled expansion joint, 10, channel flange I, 11, shell flange I, 12, gasket seal I, 13, housing method
Blue II, 14, channel flange II, 15, elastic sealing ring, 16, snap ring, 17, gasket seal II, 18, positive stop lug boss I, 19, limit convex
Platform II, 20, positive stop lug boss III, 21, pull bar.
Specific embodiment
The present invention is illustrated with reference to the drawings and specific embodiments：
As shown in Fig. 2 and combining Fig. 3, a kind of detachable bundled tube fixed tube-sheet exchanger, described fixed tube sheet type
Heat exchanger includes front-end pipe box 1, front tube sheet 2, housing 3, heat exchanger tube 4, deflection plate 5, back tube sheet 6 and rear end header 7；Described
Housing 3 is the rear and front end structure with shell flange respectively；Have on the outer face of the shell flange I 11 of housing forward end
Positive stop lug boss I 18, described positive stop lug boss I 18 is annular, and the external diameter kissing of the internal diameter of the positive stop lug boss I 18 and front tube sheet
Match somebody with somebody；Described front-end pipe box 1 has the structure of channel flange I 10 for rear end；There is limit on the rear end face of the channel flange I 10
Position boss II 19, the structure of described positive stop lug boss II 19 is identical with the structure of positive stop lug boss I 18；Described front tube sheet 2 is straight
Footpath more than the internal diameter of housing 3 circular slab, between shell flange I 11 and channel flange I 10, and by positive stop lug boss I 18, spacing
Boss II 19 carries out radially spacing to it；Described shell flange I 11 is integrated with channel flange I 10 by bolt connection, and
Gasket seal I 12 is set between shell flange I 11 and front tube sheet 2, front tube sheet 2 and channel flange I 10, is realized after tools for bolts ' pretension close
Envelope and the axially position restrained；
As shown in Fig. 2 and combine Fig. 4, the shell flange II 13 positioned at housing rear end is connected with described barrel soldering；Institute
The rear portion for stating the aperture surface of shell flange II 13 is the conical surface in flaring footpath from left to right, and conical surface length L is according to actual seal request
Depending on；Described rear end header has the structure of channel flange II 14 for front end；Have on the front end face of the channel flange II 14
Limited location boss III 20, described positive stop lug boss III 20 is annular, and the internal diameter of the positive stop lug boss III 20 is outer with back tube sheet 6
Footpath kissing is matched somebody with somebody；Described back tube sheet 6 is circular slab of the diameter less than housing inner diameter, has on the periphery of the back tube sheet 6 and uses
To install the annular short slot of snap ring；Described back tube sheet 6 is located between shell flange II 13 and channel flange II 14, and by spacing
Boss III 20 carries out radially spacing to it；Described shell flange II 13 is integrated with channel flange II 14 by bolt connection；Institute
Sealed by elastic sealing ring 15 between the back tube sheet 6 stated and described shell flange II 13；Described elastic sealing ring 15 be with
The cone-shaped ring that the sealing cone kissing of shell flange II is matched somebody with somebody；By sealing gasket between described back tube sheet 6 and channel flange II 14
Enclose II 17 sealings；Described snap ring 16 is the circulus that cross sectional shape is " L " type, and its side is face ring cylindrical positioned at back tube sheet
In shape short slot, opposite side when the shell flange II is connected as one with channel flange II with the described phase of elastic sealing ring 15
Contact, to hold out against described elastic sealing ring；Back tube sheet promotes snap ring, snap ring to compress elastic sealing ring and be installed after tools for bolts ' pretension
In the taper draw-in groove that shell flange and tube sheet are formed, because elastic sealing ring is made using soft metal, under the thrust of snap ring
Produce micro elastic deformation to be brought into close contact with shell flange, tube plate sealing face.
The expansion joint 9 to carry out axial displacement compensation to housing is provided with described housing 3；The expansion joint 9
Two ends are connected respectively with housing；When needing to change tube bank and gasket seal, the rear header of equipment is removed first, due to wedge shape
Sealing ring is installed in the middle of flange and tube sheet, and sealing ring may be caused to be not easily taken out；Then the pull-rod nut of expansion joint is locked, is made
Expansion joint produces axial compression displacement, and housing axial length reduces, and wedge shape sealing ring can be separated with tube sheet, flange sealing surface,
Now extract the replacement that tube bank, front header gasket seal and rear header cone-shaped sealing ring are realized in tube bank out.
Claims (2)
1. a kind of detachable bundled tube fixed tube-sheet exchanger, described fixed tube-sheet exchanger includes front-end pipe box
（1）, front tube sheet（2）, housing（3）, heat exchanger tube（4）, deflection plate（5）, back tube sheet（6）And rear end header（7）；It is characterized in that：
Described housing（3）There is respectively the structure of shell flange for rear and front end；Positioned at the shell flange I of housing forward end（11）It is outer
There is positive stop lug boss I on end face（18）, described positive stop lug boss I（18）For annular, and the positive stop lug boss I（18）Internal diameter with
The external diameter kissing of front tube sheet is matched somebody with somebody；Described front-end pipe box（1）There is channel flange I for rear end（10）Structure；The bobbin carriage method
Blue I（10）Rear end face on have positive stop lug boss II（19）, described positive stop lug boss II（19）Structure and positive stop lug boss I（18）
Structure it is identical；Described front tube sheet（2）It is with diameter greater than housing（3）The circular slab of internal diameter, positioned at shell flange I（11）With pipe
Case flange I（10）Between, and by positive stop lug boss I（18）, positive stop lug boss II（19）It is carried out radially spacing；
Positioned at the shell flange II of housing rear end（13）It is connected with described case weld；The shell flange II（13）Aperture surface
Rear portion be flaring footpath from left to right the conical surface；Described rear end header has channel flange II for front end（14）Structure；Institute
State channel flange II（14）Front end face on have positive stop lug boss III（20）, described positive stop lug boss III（20）For annular, and institute
State positive stop lug boss III（20）Internal diameter and back tube sheet（6）External diameter kissing match somebody with somebody；Described back tube sheet（6）It is that diameter is less than in housing
The circular slab in footpath, the back tube sheet（6）Periphery on there is annular short slot to install snap ring；Described back tube sheet（6）
Positioned at shell flange II（13）With channel flange II（14）Between, and by positive stop lug boss III（20）It is carried out radially spacing；Institute
The shell flange II stated（13）With channel flange II（14）It is integrated by bolt connection；Described back tube sheet（6）With described shell
Body flange II（13）Between by elastic sealing ring（15）Sealing；Described elastic sealing ring（15）It is the conical surface with shell flange II
The cone-shaped ring that kissing is matched somebody with somebody；Described back tube sheet（6）With channel flange II（14）Between by seal washer II（17）Sealing；It is described
Snap ring be cross sectional shape for " L " type circulus, it is described to hold out against in the annular short slot of back tube sheet periphery
Elastic sealing ring.
2. a kind of detachable bundled tube fixed tube-sheet exchanger as claimed in claim 1, it is characterised in that：Described housing
（3）On be provided with expansion joint to carry out axial displacement compensation to housing（9）；The expansion joint（9）Two ends respectively with shell
Body connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510514341.5A CN105135914B (en) | 2015-08-21 | 2015-08-21 | Detachable tube bundle type fixed tube-sheet heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510514341.5A CN105135914B (en) | 2015-08-21 | 2015-08-21 | Detachable tube bundle type fixed tube-sheet heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105135914A CN105135914A (en) | 2015-12-09 |
| CN105135914B true CN105135914B (en) | 2017-04-12 |
Family
ID=54721357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510514341.5A Active CN105135914B (en) | 2015-08-21 | 2015-08-21 | Detachable tube bundle type fixed tube-sheet heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105135914B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10508843B2 (en) * | 2015-12-21 | 2019-12-17 | Johnson Controls Technology Company | Heat exchanger with water box |
| US20170176066A1 (en) | 2015-12-21 | 2017-06-22 | Johnson Controls Technology Company | Condenser with external subcooler |
| CN106770432A (en) * | 2016-11-16 | 2017-05-31 | 南京工业大学 | A kind of removable pipe array heat transfer performance test device |
| CN109387101B (en) * | 2017-08-02 | 2020-06-05 | 中国石油化工股份有限公司 | Coiled pipe heat exchanger |
| CN112033188B (en) * | 2020-09-09 | 2022-06-28 | 南通昭和机械有限公司 | Tubular heat exchanger |
| CN112161498B (en) * | 2020-10-16 | 2022-01-14 | 惠州忠信化工有限公司 | Chemical industry is with formula shell and tube heat exchanger tube sheet mounting structure that connects soon |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973621A (en) * | 1974-11-27 | 1976-08-10 | Foster Wheeler Energy Corporation | Heat exchanger |
| JPS563898A (en) * | 1979-06-18 | 1981-01-16 | Westinghouse Electric Corp | Heat exchanger of shell and tubes |
| CN201503332U (en) * | 2009-07-29 | 2010-06-09 | 洛阳双瑞特种装备有限公司 | Packing box for hydraulic test on floating tube sheet end of floating head type heat exchanger |
| CN202013122U (en) * | 2010-12-28 | 2011-10-19 | 付占林 | Oil transfer heat conduction equipment in oil field |
| CN205014867U (en) * | 2015-08-21 | 2016-02-03 | 洛阳双瑞特种装备有限公司 | Can dismantle tube bundle fixed tube sheet heat exchanger |
-
2015
- 2015-08-21 CN CN201510514341.5A patent/CN105135914B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973621A (en) * | 1974-11-27 | 1976-08-10 | Foster Wheeler Energy Corporation | Heat exchanger |
| JPS563898A (en) * | 1979-06-18 | 1981-01-16 | Westinghouse Electric Corp | Heat exchanger of shell and tubes |
| CN201503332U (en) * | 2009-07-29 | 2010-06-09 | 洛阳双瑞特种装备有限公司 | Packing box for hydraulic test on floating tube sheet end of floating head type heat exchanger |
| CN202013122U (en) * | 2010-12-28 | 2011-10-19 | 付占林 | Oil transfer heat conduction equipment in oil field |
| CN205014867U (en) * | 2015-08-21 | 2016-02-03 | 洛阳双瑞特种装备有限公司 | Can dismantle tube bundle fixed tube sheet heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105135914A (en) | 2015-12-09 |
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Address after: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: 471000, Binhe Road, hi tech Development Zone, Henan, Luoyang, 32 Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |