CN207247979U - A kind of deflection element of shell-and-tube heat exchanger - Google Patents
A kind of deflection element of shell-and-tube heat exchanger Download PDFInfo
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- CN207247979U CN207247979U CN201721004394.3U CN201721004394U CN207247979U CN 207247979 U CN207247979 U CN 207247979U CN 201721004394 U CN201721004394 U CN 201721004394U CN 207247979 U CN207247979 U CN 207247979U
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- bellows
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Abstract
It the utility model is related to a kind of deflection element of shell-and-tube heat exchanger, including square hole baffle and casing fixed plate；The square hole baffle is transversely arranged in the housing of shell-and-tube heat exchanger, for fixing bellows；Square hole baffle be with the matched circular orifice of housing inner diameter, be uniformly distributed multiple square through holes thereon；Casing fixed plate is embedded in square through hole, and the wave crest portions of inner side and bellows are tangent.The utility model uses square hole baffle, and casing fixed plate is set in square through hole on it and is used to fix bellows, the heat transfer effect of heat exchanger shell pass can be effectively improved, strengthens the turbulivity of fluid, the vibration of heat exchanger is reduced, solves the wear problem between corrugated tube bundle and baffle plate.
Description
Technical field
It the utility model is related to fluid heat transfer technical field, more particularly to a kind of deflection element of shell-and-tube heat exchanger.
Background technology
Traditional shell-and-tube heat exchanger generally use straight tube heat exchanger tube and segmental baffle coordinate, there are heat exchange efficiency not
The problems such as height, dirt deposition is fast in heat exchanger, dirt difficult cleaning.In recent years, there is the cooperation of bellows and full-circle spray pattern orifice plate
Form, but easily worn between bellows and baffle plate, when installation, need to add pipe sleeve, increase cost；In addition, full-circle spray pattern hole
The structure that plate coordinates with bellows, be easy to cause tube side structural instability, fluid is not easy to reach turbulent flow, and heat transfer effect is bad.
The content of the invention
The utility model provides a kind of deflection element of shell-and-tube heat exchanger, using square hole baffle, and side on it
Casing fixed plate is set in shape through hole to be used to fix bellows, can be effectively improved the heat transfer effect of heat exchanger shell pass, be strengthened fluid
Turbulivity, reduce the vibration of heat exchanger, solve the wear problem between corrugated tube bundle and baffle plate.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of deflection element of shell-and-tube heat exchanger, including square hole baffle and casing fixed plate；The square hole baffle edge is horizontal
To being arranged in the housing of shell-and-tube heat exchanger, for fixing bellows；Square hole baffle is and the matched circle of housing inner diameter
Orifice plate, is uniformly distributed multiple square through holes thereon；Casing fixed plate is embedded in square through hole, inner side and the wave crest section phase of bellows
Cut.
Described sleeve pipe fixed plate be and the matched square frame-shaped structure of square through hole, one of right angle of square frame-shaped structure
Both sides cut off 1/4 length of side respectively.
Described sleeve pipe fixed plate is embedded in shape through hole, is welded and fixed with square baffle.
The thickness of described sleeve pipe fixed plate is 1~2 times of bellows pitch of waves.
Compared with prior art, the beneficial effects of the utility model are：
1) square hole baffle is used, fluid can be avoided directly to hit housing, effectively reduces shell side resistance, it is dead to remove flowing
Area, shell-and-tube heat exchanger are not likely to produce dirt and vibration；
2) casing fixed plate is the square frame-shaped structure of unfilled corner, it is fixed in the square through hole of square hole baffle, makes tube side knot
Structure is more stablized, and forms shell side turbulent element, and the scrambling of enhancing fluid flowing, increases the circulating rate of fluid, improve
The surface coefficient of heat transfer of shell side side；
3) inner side of casing fixed plate and bellows wave crest section are tangent, for fixing bellows, bellows is kept off with square hole
Plate lossless can coordinate, and reduce the abrasion of bellows, simplify the installation of bellows, improve the stability of tube side structure；
4) shell-side fluid accelerates to flow out from the gap of bellows and casing fixed plate, produces shock with adjacent corrugations pipe, breaks
The fluid boundary layer being broken on tube wall, improves overall heat-transfer effect.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of the deflection element of shell-and-tube heat exchanger described in the utility model.
Fig. 2 is the structure diagram of bellows described in the utility model.
Fig. 3 is the structure diagram of casing fixed plate described in the utility model.
In figure：1. 31. straight pipe of square hole baffle 11. square through hole, 2. casing fixed plate, 3. bellows, 32. wave crest section
33. trough section
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of deflection element of shell-and-tube heat exchanger described in the utility model, including square hole baffle 1 and set
Pipe fixed plate 2；The square hole baffle 1 is transversely arranged in the housing of shell-and-tube heat exchanger, for fixing bellows 3；Square hole
Baffle 1 be with the matched circular orifice of housing inner diameter, be uniformly distributed multiple square through holes 11 thereon；Casing fixed plate 2 is embedded in
In square through hole 11, inner side and the wave crest section of bellows 3 are tangent.
As shown in figure 3, described sleeve pipe fixed plate 2 is and the matched square frame-shaped structure of square through hole 11, square frame-shaped structure
One of right angle both sides cut off 1/4 length of side respectively.
Described sleeve pipe fixed plate 2 is embedded in shape through hole 11, is welded and fixed with square baffle 1.
The thickness of described sleeve pipe fixed plate 2 is 1~2 times of 3 pitch of waves of bellows.
A kind of method of work of the deflection element of shell-and-tube heat exchanger, laterally sets multiple sides in shell-and-tube heat exchanger
Hole baffle 1, the longitudinally disposed heat-exchanging tube bundle being made of multiple bellowss 3；The wave crest section 32 of bellows 3 passes through casing fixed plate 2
Fixed with square hole baffle 1；As shown in Fig. 2, bellows 3 is made of smooth straight, centre is multiple wave crest sections 32 alternately connected
With trough section 33, both ends are connected by straight pipe 31 with tube sheet；During heat exchange, shell-side fluid flows transversely through square hole baffle 1 and casing
Fixed plate 2, can remove flow dead zone；Then accelerate to flow out from the gap of casing fixed plate 2 and bellows 3, with adjacent wave
Line pipe 3 is hit, and strengthens the turbulence effects of fluid, breaks the fluid boundary layer in inner walls, improves overall heat-transfer effect；At the same time
Avoid fluid and directly hit housing, reduce the vibration of shell-and-tube heat exchanger.
In the utility model, when casing fixed plate 2 is embedded in square through hole 11, its unfilled corner part is towards the same side.
The above, is only the preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (4)
1. a kind of deflection element of shell-and-tube heat exchanger, it is characterised in that including square hole baffle and casing fixed plate；The square hole
Baffle is transversely arranged in the housing of shell-and-tube heat exchanger, for fixing bellows；Square hole baffle is matched with housing inner diameter
The circular orifice of conjunction, is uniformly distributed multiple square through holes thereon；Casing fixed plate is embedded in square through hole, inner side and bellows
Wave crest section is tangent.
A kind of 2. deflection element of shell-and-tube heat exchanger according to claim 1, it is characterised in that described sleeve pipe fixed plate
To cut off 1/4 length of side respectively with one of right angle both sides of the matched square frame-shaped structure of square through hole, square frame-shaped structure.
A kind of 3. deflection element of shell-and-tube heat exchanger according to claim 1, it is characterised in that described sleeve pipe fixed plate
In shape through hole, it is welded and fixed with square baffle.
A kind of 4. deflection element of shell-and-tube heat exchanger according to claim 1, it is characterised in that described sleeve pipe fixed plate
Thickness be 1~2 times of bellows pitch of waves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721004394.3U CN207247979U (en) | 2017-08-11 | 2017-08-11 | A kind of deflection element of shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721004394.3U CN207247979U (en) | 2017-08-11 | 2017-08-11 | A kind of deflection element of shell-and-tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207247979U true CN207247979U (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721004394.3U Active CN207247979U (en) | 2017-08-11 | 2017-08-11 | A kind of deflection element of shell-and-tube heat exchanger |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255426A (en) * | 2017-08-11 | 2017-10-17 | 中冶焦耐(大连)工程技术有限公司 | The deflection element and its method of work of a kind of shell-and-tube heat exchanger |
-
2017
- 2017-08-11 CN CN201721004394.3U patent/CN207247979U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255426A (en) * | 2017-08-11 | 2017-10-17 | 中冶焦耐(大连)工程技术有限公司 | The deflection element and its method of work of a kind of shell-and-tube heat exchanger |
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