CN206192152U - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN206192152U CN206192152U CN201621247038.XU CN201621247038U CN206192152U CN 206192152 U CN206192152 U CN 206192152U CN 201621247038 U CN201621247038 U CN 201621247038U CN 206192152 U CN206192152 U CN 206192152U
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Abstract
The utility model belongs to the technical field of the heat transfer, in particular to heat exchanger, including the casing heat exchanger tube bundles inside with being located the casing, the outside at casing both ends sets up the conical body respectively, the tube sheet is connected in the outside of conical body, the outer terminal surface connecting pipe journey pipe case of tube sheet, tube side inlet tube case and tube side outlet pipe case are drawn together to tube side pipe case and bag, set up the tube side side entrance on the tube side inlet tube case, be equipped with the export of tube side side on the tube side outlet pipe case, all install in the tube sheet at casing both ends at the heat exchanger tube bundles both ends, the heat exchanger tube bundles tip heat exchange tube that wherein lies in tube side inlet tube case end exposes the outer terminal surface of tube sheet, be equipped with shell -side entry and shell -side export on the conical body of casing respectively. The utility model discloses a blind spot and stagnant area be minimizing or elimination by a wide margin to the sacrifice part that heat exchange tube among the inlet region corrodes through providing heat exchange tube length solves, with material still less change, more easily and repair and change the corruption part of heat exchange tube with minimum down -time.
Description
Technical field
The utility model is related to a kind of heat exchanger, belongs to technical field of heat exchange.
Background technology
Heat exchanger had been developed that before decades, and is still exceedingly useful in many applications for needing heat transfer
's.Although the Basic Design of heat exchanging device is made that many improvement in twentieth century, still suffer from existing with heat exchanger
Include associated balance and design problem during use.
One of problem being associated with the use of heat exchanger is the problem of fouling.Fouling refer to as process fluid flowing and
The process of heat transfer is formed in various sediments and coating on the surface of heat exchanger.There is various types of foulings, including corruption
Erosion thing, polymerization, crystallization, coking, sedimentation and biology.For corrosion, as between the material that process fluid and heat exchanger are used
Interaction result, the surface of heat exchanger may be corroded.Because various scaling types may interact so that causing
More foulings, make situation worse.Fouling can cause, and for the additional drag of heat transfer, therefore make on heat transfer
Performance reduction.Fouling also causes the area of passage of fluid passage in heat exchanger to reduce, resistance when causing fluid to flow through equipment
Increase, pressure drop increase.
The heat exchanger commonly used in business process is shell and tube heat exchanger.In this type, a fluid is largely being changed
The internal flow of heat pipe, and another fluid passes through housing, spreads all over the outside of heat exchanger tube.Generally, deflection plate is placed to be changed to support
Heat pipe and force fluid by wriggle in the way of through tube bank.
Fouling can be reduced by using fluid rate higher.In fact, a research is it has been shown that fouling exceedes
50% reduction is probably to be caused by the double of fluid rate.It is known that the use of fluid rate higher can significantly subtract
It is small or even eliminate scale problems.Unfortunately, the sufficiently high fluid rate needed for fouling is greatly decreased is in conventional shell
The shell-side of pipe heat exchanger is usually unapproachable, because the pressure drop caused due to deflection plate in system is excessive.Additionally,
When shell fluid flowing is on different from axially direction, especially when flowing is for two-forty, the heat exchanger tube of flow-induction
Vibration may be changed into a question of substance, because it is probably to be caused by the vibration that various degrees of heat exchanger tube is damaged.
The fluid rate higher associated with tube side mobile phase is likely to cause difficulty.For example, being arranged in conventional shell-tube type
In, the fluid rate higher associated with tube side mobile phase makes the inner surface of heat exchanger tube, is particularly at heat exchange tube inlet and corrodes.In stream
When body speed is such as 2.4m/ seconds, the inner surface of brass tube since entrance, extend to heat exchanger tube in 15cm or more length
May corrode on degree.As fluid rate increases, both speed that the length and corrosion for being just subject to the heat exchanger tube for corroding occur
For, problem becomes grain.
Heat exchanger tube corrosion may finally destroy the integrality of heat exchanger tube and tube sheet joint.In extreme situations, corrode
The perforation of heat exchanger tube may be caused, the perforation ultimately resulted in and mix between the shell fluid of heat exchanger and tube side fluid.
Heat exchanger tube inside corrosion occurs leakage problem in shell and tube exchanger, because once a large amount of corrosion hairs
It is raw, just become necessary to change or repair heat exchanger tube.Because in conventional shell and tube exchanger, by the heat exchange pipe range for corroding
The major part of degree is embedded in the inside of tube sheet, so the repairing of heat exchanger tube and replacing are expensive and time-consuming.For example, it may be possible to
It is necessary the remaining part inside the cutting heat exchanger tube adjacent with the inner surface of two tube sheets, taking-up tube sheet, takes out heat exchanger tube
Center section (between two tube sheets) and then clean surface and new heat exchanger tube is installed.As it is known in the art, this is
Generally result in the hard process of a large amount of process downtimes.
In addition to corrosive pipeline problem discussed above, existing shell and tube exchanger is also damaged in " dead band " and fluid
The fact that stagnant area is present in the shell-side of heat exchanger.These dead bands and stagnant area generally result in fouling excessively and heat transfer efficiency drop
It is low.It is that tube sheet by- shell fluid is changed to be present in one in conventional shell and tube exchanger specific fluid retention area
The region of the discharge connection of hot device.Because hydrodynamic is known, it is intended to be connect with each in the presence of positioned at each tube sheet
Dead band or stagnant area in region between pipe.This region of the fluid flow restrictions of shell-side can draw in the region of tube sheet
Obvious scale problems are played, because the speed in the region is non-existent or low-down.As it is known in the art, with
Above mentioned problem identical problem is existed in the region adjacent with inlet connection.
Utility model content
The technical problems to be solved in the utility model is：A kind of heat exchanger is provided, dead band and stagnant area are significantly minimum
Change or eliminate, and in entrance area heat exchanger tube corrosion solved by providing the sacrificial section of heat exchanger tube length, with more
Few material is changed, more easily and with the erodable section of minimum down time exchange heat pipe is repaired and changed.
Heat exchanger described in the utility model, including housing and the heat-exchanging tube bundle positioned at enclosure interior, outside housing two ends
Side is respectively provided with bullet, and the outside connection tube sheet of bullet, the outer face connection tube side bobbin carriage of tube sheet, tube side bobbin carriage includes pipe
Journey entrance bobbin carriage and tube side outlet bobbin carriage, set tube side side entrance on tube-side inlet bobbin carriage, tube side outlet bobbin carriage is provided with tube side
Side outlet, heat-exchanging tube bundle two ends are installed in the tube sheet at housing two ends, wherein positioned at the heat-exchanging tube bundle of tube-side inlet tube case end
End heat exchanger tube exposes tube sheet outer face, is respectively equipped with shell-side inlet and shell-side outlet on the bullet of housing, shell-side inlet and
Tube side side outlet is located at same one end, and shell-side outlet and tube side side entrance are located at same one end.
Heat-exchanging tube bundle end heat exchanger tube positioned at tube-side inlet tube case end exposes tube sheet outer face, and the part exposed is sacrifice
Section.
Described heat-exchanging tube bundle end heat exchanger tube and the pipe in tube side outlet bobbin carriage positioned at tube side outlet tube case end
Plate outer face is concordant or stretches out 1~5mm.
Heat exchange tube supporting plate is axially distributed with described housing, heat exchange tube supporting plate is fixed on enclosure interior, heat exchanger tube
Correspondence heat-exchanging tube bundle is arranged through hole in supporting plate.
Described tube-side inlet bobbin carriage and tube side outlet bobbin carriage are disposed as circular cylindrical cavity, tube side side entrance and tube side side
Outlet is horizontally disposed with.
Described shell-side inlet is located at the bottom position of bullet, and shell-side outlet is located at the tip position of bullet.
Described bullet is less than the diameter of bullet and tube sheet junction with the diameter of housing junction.
Heat exchanger has the multiple heat exchanger tubes being included in heat exchanger, and wherein each heat exchanger tube extends the outer surface of tube sheet
Outside preset distance.The extension of this mode of heat exchanger tube allows the length being located near heat exchange tube inlet part to be used as sacrificing
Section, sacrifice section can be readily replaced before inside corrosion reaches the moment of problematic level.If additionally, changed
Heat pipe corrosion occurs in section is sacrificed, then from for the angle of operation, the reasons why this is not so important worrying.At this
In heat exchanger, dead band and stagnant area significantly minimize or eliminate, and heat exchanger tube corrosion in entrance area is by carrying
Solved for the sacrificial section of heat exchanger tube length, with less material replacing, more easily and with minimum down time pair
The erodable section of heat exchanger tube is repaired and changed.Because utilizing axle to shell fluid according to preferred embodiment of the present utility model
To flowing, so heat exchange vibration problems are generally eliminated.
Heat exchanger could be formed with housing extension portion point, and the housing extension portion point extends to heat exchanger bullet and encounters housing
Position outside, and shell-side face further towards tube sheet near shell-side outlet extends.The housing extension portion point is used
Flowed to be further minimized in the region near shell-side outlet and shell-side inlet towards tube sheet in shell fluid is forced
, at the surface at tube sheet face center or the dead band around it and low flow of fluid or the region in the absence of flow of fluid.
Housing extension portion point also limits and eliminates shell-side etching problem, because it provides 360 degree of road approach for shell fluid flowing
Footpath, rather than shell fluid directly against the construction of tube bank flowing.
Heat exchanger tube sheet shell-side is formed with conical extension, and the conical extension is with the shell-side face of tube sheet
Centered on the heart.The conical section is used to further reduce and eliminate small stagnant area, and the small stagnant area is by due to foregoing cone
Body section and the directed flow that has separated of housing extension portion and be present in this heat exchanger.
When " ready-made " the heat exchanger module of normal size can be used to maximize the reduction of fouling and cause design
Between can significantly shorten very much.The heat exchanger of several smaller normal sizes can be by parallel or in series or both
In parallel and it is used in series to realize necessary heat transfer demands.
The beneficial effects of the utility model are：
It is simple and reasonable, easily to realize, dead band and stagnant area significantly minimize or eliminate, and entrance area
In heat exchanger tube corrosion solved by providing the sacrificial section of heat exchanger tube length, changed with less material, more easily simultaneously
And repaired and changed with the erodable section of minimum down time exchange heat pipe.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, tube side side entrance；2nd, tube sheet；3rd, shell-side outlet；4th, housing；5th, tube side side outlet；6th, tube side outlet
Case；7th, shell-side inlet；8th, heat exchange tube supporting plate；9th, tube-side inlet bobbin carriage；10th, heat-exchanging tube bundle；11st, section is sacrificed.
Specific embodiment
The utility model is described further below in conjunction with the accompanying drawings：
As shown in figure 1, heat exchanger described in the utility model, including housing 4 and the heat-exchanging tube bundle inside housing 4
10, bullet, the outside connection tube sheet 2 of bullet, the outer face connection tube side of tube sheet 2 are respectively provided with the outside of the two ends of housing 4
Bobbin carriage, tube side bobbin carriage includes tube-side inlet bobbin carriage 9 and tube side outlet bobbin carriage 6, and tube side side entrance 1 is set on tube-side inlet bobbin carriage 9,
Tube side outlet bobbin carriage 6 is provided with tube side side outlet 5, and the two ends of heat-exchanging tube bundle 10 are installed in the tube sheet 2 at the two ends of housing 4, wherein
The end heat exchanger tube of heat-exchanging tube bundle 10 positioned at the end of tube-side inlet bobbin carriage 9 exposes the outer face of tube sheet 2, on the bullet of housing 4 respectively
Shell-side inlet 7 and shell-side outlet 3 are provided with, shell-side inlet 7 and tube side side outlet 5 are located at same one end, and shell-side outlet 3 and tube side side enter
Mouth 1 is located at same one end.Positioned at the end heat exchanger tube of heat-exchanging tube bundle 10 at tube side outlet bobbin carriage 6 end and in tube side outlet bobbin carriage 6
The outer face of tube sheet 2 it is concordant or stretch out 1~5mm.Heat exchange tube supporting plate 8 is axially distributed with housing 4, heat exchange tube supporting plate 8 is consolidated
It is scheduled on inside housing 4, correspondence heat-exchanging tube bundle 10 is arranged through hole on heat exchange tube supporting plate 8.Tube-side inlet bobbin carriage 9 and tube side are exported
Bobbin carriage 6 is disposed as circular cylindrical cavity, and tube side side entrance 1 and tube side side outlet 5 are horizontally disposed with.Shell-side inlet 7 is located at taper
The bottom position of body, shell-side outlet 3 is located at the tip position of bullet.Bullet is less than taper with the diameter of the junction of housing 4
Body and the diameter of the junction of tube sheet 2.
Heat exchanger has the multiple heat exchanger tubes being included in heat exchanger, and wherein each heat exchanger tube extends the appearance of tube sheet 2
Preset distance outside face.It is sacrificial that the extension of this mode of heat exchanger tube allows the length being located near heat exchange tube inlet part to be used as
Domestic animal section 11, sacrifice section 11 can be readily replaced before inside corrosion reaches the moment of problematic level.Additionally,
If heat exchanger tube corrosion occurs in section 11 is sacrificed, from for the angle of operation, this is not so important worrying
Reason.In the heat exchanger, dead band and stagnant area significantly minimize or eliminate, and the heat exchanger tube corruption in entrance area
Erosion is solved by providing the sacrificial section of heat exchanger tube length, is changed with less material, more easily and with minimum stopped
The erodable section of car time exchange heat pipe is repaired and changed.Because according to preferred embodiment of the present utility model to shell-side stream
Body is using axially flowing, so heat exchange vibration problems are generally eliminated.
Claims (6)
1. a kind of heat exchanger, including housing (4) and the heat-exchanging tube bundle (10) positioned at housing (4) inside, it is characterised in that：Housing
(4) bullet is respectively provided with the outside of two ends, the outside of bullet connects tube sheet (2), the outer face connection tube side pipe of tube sheet (2)
Case, tube side bobbin carriage includes that tube-side inlet bobbin carriage (9) and tube side export bobbin carriage (6), tube side side is set on tube-side inlet bobbin carriage (9) and is entered
Mouth (1), tube side exports bobbin carriage (6) and is provided with tube side side outlet (5), and heat-exchanging tube bundle (10) two ends are installed in housing (4) two ends
Tube sheet (2) in, wherein positioned at tube-side inlet bobbin carriage (9) end heat-exchanging tube bundle (10) end heat exchanger tube expose tube sheet (2) outer end
Face, is respectively equipped with shell-side inlet (7) and shell-side outlet (3), shell-side inlet (7) and tube side side outlet on the bullet of housing (4)
(5) positioned at same one end, shell-side outlet (3) and tube side side entrance (1) are positioned at same one end.
2. heat exchanger according to claim 1, it is characterised in that：The heat-exchanging tube bundle at bobbin carriage (6) end is exported positioned at tube side
(10) end heat exchanger tube is concordant with tube sheet (2) outer face exported positioned at tube side in bobbin carriage (6) or stretches out 1~5mm.
3. heat exchanger according to claim 1, it is characterised in that：Housing is axially distributed with heat exchange tube supporting plate in (4)
(8), heat exchange tube supporting plate (8) is fixed on housing (4) inside, and correspondence heat-exchanging tube bundle (10) sets and wears on heat exchange tube supporting plate (8)
Via.
4. heat exchanger according to claim 1, it is characterised in that：Tube-side inlet bobbin carriage (9) and tube side export bobbin carriage (6)
Circular cylindrical cavity is set to, tube side side entrance (1) and tube side side outlet (5) are horizontally disposed with.
5. heat exchanger according to claim 1, it is characterised in that：Shell-side inlet (7) positioned at bullet bottom position, shell
Tip position of the side outlet (3) positioned at bullet.
6. heat exchanger according to claim 1, it is characterised in that：Bullet is less than cone with the diameter of housing (4) junction
Body and the diameter of tube sheet (2) junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621247038.XU CN206192152U (en) | 2016-11-17 | 2016-11-17 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621247038.XU CN206192152U (en) | 2016-11-17 | 2016-11-17 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206192152U true CN206192152U (en) | 2017-05-24 |
Family
ID=58726461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621247038.XU Active CN206192152U (en) | 2016-11-17 | 2016-11-17 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206192152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033194A (en) * | 2020-08-26 | 2020-12-04 | 胡志鹏 | Coke oven waste heat multi-group utilization system |
-
2016
- 2016-11-17 CN CN201621247038.XU patent/CN206192152U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112033194A (en) * | 2020-08-26 | 2020-12-04 | 胡志鹏 | Coke oven waste heat multi-group utilization system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 255400 Hongda Road, Linzi Economic Development Zone, Zibo, Shandong 1909 Patentee after: Shandong double Petrochemical Equipment Co., Ltd. Address before: 255424 Hongda Road, Linzi Economic Development Zone, Zibo, Shandong 1909 Patentee before: Zibo Wanchang Chemical Equipment Co., Ltd. |
|
| CP03 | Change of name, title or address |