CN202361847U - Modified structure of shell-and-tube heat exchanger - Google Patents
Modified structure of shell-and-tube heat exchanger Download PDFInfo
- Publication number
- CN202361847U CN202361847U CN201120397276XU CN201120397276U CN202361847U CN 202361847 U CN202361847 U CN 202361847U CN 201120397276X U CN201120397276X U CN 201120397276XU CN 201120397276 U CN201120397276 U CN 201120397276U CN 202361847 U CN202361847 U CN 202361847U
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- heat exchanger
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Abstract
The utility model relates to a modified structure of a shell-and-tube heat exchanger, which comprises a heat exchanger shell. Two ends of the heat exchanger are connected with a cold water inlet flange and a hot water outlet flange through flanges, a water vapor inlet flange and a condensed water outlet flange are radially arranged at two ends of the heat exchanger shell, and the water vapor inlet flange is communicated with the condensed water outlet flange through a heat exchange tube. The modified structure is characterized in that the heat exchange tube is a corrugated tube, the wall thickness of the corrugated tube ranges from 0.6mm to 2.5mm, the wave pitch of the corrugated tube ranges from 20mm to 50mm and is determined according to the outer diameter of the heat exchange tube, and the corrugated tube penetrates through a support mounted in the heat exchanger shell. By the aid of the property of the corrugated tube, the manufactured heat exchanger is high in heat transfer coefficient, small in size, low in flow resistance and high in heat exchange capacity as compared with a traditional light tube heat exchanger, the heat transfer coefficient of the heat exchanger is two to three times higher than that of the traditional light tube heat exchanger, a heat transfer surface is not easy to scale, heat exchange efficiency is lasting and high, the advantages of high temperature resistance and high pressure resistance of the traditional heat exchanger are reserved, the heat exchanger has the function of automatic thermal stress compensation, and the occupied area of the heat exchanger used on a heat exchange unit is smaller than that of the light tube heat exchanger.
Description
Technical field
The utility model belongs to heat exchanger manufacturing technology field, particularly relates to a kind of improvement structure of shell-and-tube heat exchanger.
Background technology
At present, steam attemperator and plate type heat exchanger are used on the heat exchange unit together, because of plate type heat exchanger because its seal gasket heat resisting temperature is limited; Can not the higher steam of adaptive temperature; When the saturation pressure of steam be higher than 0.2MPa, when temperature is higher than 130 ℃, the seal gasket aging speed is accelerated, and is out of shape hardening gradually; Follow the string, cause plate type heat exchanger to reveal.And that the steam attemperator has is high pressure resistant, the performance of high temperature, and steam gets into plate type heat exchanger again behind steam attemperator desuperheat, in conjunction with the advantage of the two.But that shortcoming is a heat exchange efficiency is lower, heavy, floor space big, inconvenient maintenance.
Summary of the invention
The utility model provides a kind of improvement structure of simple in structure, heat transfer coefficient is high, exchange capability of heat is strong, volume is little, safe and reliable shell-and-tube heat exchanger for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of improvement structure of shell-and-tube heat exchanger; Comprise heat exchanger shell; Said heat exchanger device two ends connect cold water water-in flange and hot water outlet flange through flange, and the two ends of said heat exchanger shell radially are provided with steam and get into flange and condensation-water drain flange, and said steam gets into flange and the condensation-water drain flange is communicated with through heat-exchange tube; It is characterized in that: said heat-exchange tube adopts bellows tube; Wall thickness 0.6 ~ the 2.5mm of said bellows tube, the pitch of waves of said bellows tube are 20-50mm, and said bellows tube passes the bracing frame that is installed in the heat exchanger shell.
The utility model can also adopt following technical measures:
Said bellows tube adopts the stainless steel wave pipe joint.
Advantage and the good effect that the utlity model has are: because said structure is adopted in this practicality; This changes bellows tube into to be about to heat exchange; Because the profile of bellows tube concave-convex surface makes fluid in pipe, form stronger turbulent flow, to managing the tangible disturbance of mobile generation of inside and outside medium; The blocking-up boundary layer growth has been strengthened heat transfer property.Utilize bellows tube itself to have the characteristic of expanding with heat and contract with cold, can produce under the medium effect that low frequency is little to shake, less scaling.The special construction shape of bellows tube makes it have the thermal stress automatic compensation function, makes the tube sheet thermal stress little, can not occur that the mouth of pipe breaks and the leakage that causes makes the heat exchanger safety durable, so equipment itself need not to add expansion joint.To sum up the utility model is higher than traditional light pipe heat exchanger heat transfer coefficient, exchange capability of heat is strong, and its heat transfer coefficient than the high 2-3 of traditional light pipe doubly; Heating surface is less scaling, and heat exchange efficiency is lasting, efficient; High temperature resistant, the high voltage bearing characteristics of traditional heat exchangers have been kept; Has the thermal stress function of compensation automatically.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the side view of Fig. 1.
Among the figure: 1, heat exchanger shell; 2, cold water water-in flange; 3, hot water outlet flange; 4, steam gets into flange; 5, condensation-water drain flange; 6, heat-exchange tube; 7, bracing frame.
The specific embodiment
For further understanding summary of the invention, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1 and Fig. 2, a kind of improvement structure of shell-and-tube heat exchanger comprises heat exchanger shell 1; Said heat exchanger device two ends connect cold water water-in flange 2 and hot water outlet flange 3 through flange, and the two ends of said heat exchanger shell 1 radially are provided with steam and get into flange 4 and condensation-water drain flange 5, and said steam gets into flange 4 and is communicated with through heat-exchange tube 6 with condensation-water drain flange 5; Said heat-exchange tube 6 adopts bellows tube, and in order to improve the corrosion resistance of bellows tube, said bellows tube adopts the stainless steel wave pipe joint; Wall thickness 0.6 ~ the 2.5mm of said bellows tube; The pitch of waves of said bellows tube is 20-50mm, and the pitch of waves is decided according to the external diameter of heat exchanger tube, and the thickness of bellows tube is 0.6mm in the present embodiment; The pitch of waves is 20mm, and said bellows tube passes the bracing frame 7 that is installed in the heat exchanger shell.
The utility model utilizes the profile of bellows tube concave-convex surface, makes fluid in pipe, form stronger turbulent flow, and to managing the tangible disturbance of mobile generation of inside and outside medium, the blocking-up boundary layer growth has been strengthened heat transfer property.Utilize bellows tube itself to have the characteristic of expanding with heat and contract with cold, can produce under the medium effect that low frequency is little to shake, less scaling.The special construction shape of bellows tube makes it have the thermal stress automatic compensation function, makes the tube sheet thermal stress little, can not occur that the mouth of pipe breaks and the leakage that causes makes the heat exchanger safety durable, so equipment itself need not to add expansion joint.To sum up the utility model is higher than traditional light pipe heat exchanger heat transfer coefficient, exchange capability of heat is strong, and its heat transfer coefficient than the high 2-3 of traditional light pipe doubly; Heating surface is less scaling, and heat exchange efficiency is lasting, efficient; High temperature resistant, the high voltage bearing characteristics of traditional heat exchangers have been kept; Has the thermal stress function of compensation automatically.
Claims (2)
1. the improvement structure of a shell-and-tube heat exchanger; Comprise heat exchanger shell; Said heat exchanger device two ends connect cold water water-in flange and hot water outlet flange through flange, and the two ends of said heat exchanger shell radially are provided with steam and get into flange and condensation-water drain flange, and said steam gets into flange and the condensation-water drain flange is communicated with through heat-exchange tube; It is characterized in that: said heat-exchange tube adopts bellows tube; Wall thickness 0.6 ~ the 2.5mm of said bellows tube, the pitch of waves of said bellows tube are 20-50mm, and said bellows tube passes the bracing frame that is installed in the heat exchanger shell.
2. the improvement structure of shell-and-tube heat exchanger according to claim 1 is characterized in that, said bellows tube adopts the stainless steel wave pipe joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120397276XU CN202361847U (en) | 2011-10-18 | 2011-10-18 | Modified structure of shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120397276XU CN202361847U (en) | 2011-10-18 | 2011-10-18 | Modified structure of shell-and-tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202361847U true CN202361847U (en) | 2012-08-01 |
Family
ID=46573028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120397276XU Expired - Lifetime CN202361847U (en) | 2011-10-18 | 2011-10-18 | Modified structure of shell-and-tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202361847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804264A (en) * | 2022-04-22 | 2022-07-29 | 东南大学 | Temperature difference energy driven sea water desalting device |
-
2011
- 2011-10-18 CN CN201120397276XU patent/CN202361847U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804264A (en) * | 2022-04-22 | 2022-07-29 | 东南大学 | Temperature difference energy driven sea water desalting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |
|
| CX01 | Expiry of patent term |