CN2577228Y - Pipe-casing type spiral boffle-plate heat-exchanger - Google Patents
Pipe-casing type spiral boffle-plate heat-exchanger Download PDFInfo
- Publication number
- CN2577228Y CN2577228Y CN 02281102 CN02281102U CN2577228Y CN 2577228 Y CN2577228 Y CN 2577228Y CN 02281102 CN02281102 CN 02281102 CN 02281102 U CN02281102 U CN 02281102U CN 2577228 Y CN2577228 Y CN 2577228Y
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- Prior art keywords
- pipe
- heat exchange
- shell
- heat
- fixed
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- Expired - Fee Related
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Abstract
The utility model discloses a pipe shell type spiral baffle plate heat exchanger which comprises a shell, a floating pipe plate, a fixed pipe plate, a heat exchange pipe bundle and a spiral baffle plate. The heat exchange pipe bundle arranged in the shell is fixed between the floating pipe plate and the fixed pipe plate and penetrates through the spiral baffle plate which is coiled on the heat exchange pipe bundle. The utility model is characterized in that space of the periphery of the shell and the heat exchange pipe bundle is additionally provided with a special-shaped heat exchange stage pipe which is fixed between the floating pipe plate and the fixed pipe plate and penetrates through the spiral baffle plate like the heat exchange pipe bundle, and the special-shaped heat exchange stage pipe approaches to the inner wall of the shell. The design is reasonable, the advantages of an existing pipe shell type spiral baffle pipe heat exchanger that pressure is low, and no heat transmission exists are reserved, the short circuit of liquid at the outer side in the shell is prevented, heat exchange area is enlarged, the unstable flow state of the liquid at the surface of the heat exchange pipe is intensified, heat exchange efficiency is improved, and the utility model is an ideal pipe shell type spiral baffle plate heat exchanger.
Description
One, technical field
The utility model belongs to technical field of heat exchange, is specifically related to the shell-and-tube spiral baffle heat exchanger that industries such as a kind of oil, chemical industry, electric power are used.
Two, technical background
The shell-and-tube segmental baffle board heat exchangers is present most popular a kind of heat transmission equipment.Find that in actual use the shell side of shell-and-tube segmental baffle heat exchange has two point defects in heat transfer and pressure drop: 1, in segmental baffle root two sides a subtriangular heat transfer dead band is arranged respectively, fouling is serious, and heat transfer property is descended greatly; When 2, fluid flow through the deflection plate top, flow direction changed suddenly, and by throttling, so produce bigger pressure drop herein.In order to improve heat exchange efficiency, overcome above-mentioned defective, a kind of shell-and-tube spiral baffle heat exchanger is disclosed for ZL99241930.1 number, medium flowed along the spiral road in shell when this heat exchanger moved in heat exchange, the flip-flop of flow direction does not take place, pressure falls very little, and heat exchange efficiency has been improved in the dead band of not conducting heat.But, the spacing of housing (the outermost layer tube bank with) space is bigger because the shell rim of this heat exchanger, the maximum when rate of flow of fluid herein is helical flow, have greatly fluid at this by not participating in heat exchange, formed short circuit, so heat exchange efficiency does not reach optimal effect.
Three, summary of the invention
The purpose of this utility model is that ZL99241930.1 shell-and-tube spiral baffle heat exchanger is improved, further the heat exchange efficiency of enhanced tube shell-type spiral baffle heat exchanger.
The utility model comprises housing, floating tubesheet, fixed tube sheet, heat-exchanging tube bundle and helical baffles.Being loaded on heat-exchanging tube bundle in the housing is fixed between floating tubesheet and the fixed tube sheet and passes the helical baffles that is coiled on the heat-exchanging tube bundle.Be characterized in setting up special-shaped heat exchange shelves pipe in the gap of housing and heat-exchanging tube bundle periphery.Special-shaped heat exchange shelves pipe is the same with heat-exchanging tube bundle, and be fixed between floating tubesheet and the fixed tube sheet, and pass helical baffles, and the inwall of close housing.Like this, though heat exchanger when operation medium in shell when helical duct flows lateral media flow velocity maximum, but because the utility model has been set up the special-shaped heat exchange shelves pipe of a circle, therefore both kept the advantage that little, no heat transfer dead band falls in ZL99241930.1 patent pressure, prevented the short circuit of housing China and foreign countries side liquids again, increased heat exchange area of the present utility model, strengthened fluid, improved heat exchange efficiency greatly at the mobile state of the instability on heat exchanger tube surface.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the I portion structure enlarged drawing among Fig. 1;
Fig. 4 is the II portion structure enlarged drawing among Fig. 2.
Five, the specific embodiment
As can be seen from Figure 1, the utility model is to set up special-shaped heat exchange shelves pipe 3 to constitute on the basis of ZL99241930.1 patent.Special-shaped heat exchange shelves pipe 3 is installed on the clear area of housing 5 and heat-exchanging tube bundle 1 periphery, because this clear area can not the normal arrangement heat exchanger tube, so the caliber of special-shaped heat exchange shelves pipe 3 is less than the caliber of heat exchanger tube.One end of special-shaped heat exchange shelves pipe 3 is done (see figure 3) and the heat-exchanging tube bundle 1 the same helical baffles 4 that passes after the distortion transition, is loaded in the housing 5 after being fixed on the tube bank that forms a whole between floating tubesheet 2 and the fixed tube sheet 6.
The utility model is simple in structure, and is reasonable in design, and pressure falls little, and the no dead band of conducting heat, and heat exchange efficiency increases substantially is an ideal shell-and-tube spiral baffle heat exchanger at present.
Claims (2)
1, a kind of shell-and-tube spiral baffle heat exchanger comprises housing (5), floating tubesheet (2), fixed tube sheet (6), heat-exchanging tube bundle (1) and helical baffles (4); Being loaded on heat-exchanging tube bundle (1) in the housing (5) is fixed between floating tubesheet (2) and the fixed tube sheet (6) and passes and be coiled in helical baffles (4) on the heat-exchanging tube bundle (1); It is characterized in that setting up special-shaped heat exchange shelves pipe (3) in the peripheral gap of housing (5) and heat-exchanging tube bundle (1), special-shaped heat exchange shelves pipes (3) are the same with heat-exchanging tube bundle (1), be fixed between floating tubesheet (2) and the fixed tube sheet (6), and pass helical baffles (4), and near the inwall of housing (5).
2, shell-and-tube spiral baffle heat exchanger according to claim 1, an end that it is characterized in that special-shaped heat exchanger (3) is done the same helical baffles (4) that passes with heat-exchanging tube bundle (1) after the distortion transition, is fixed between floating tubesheet (2) and the fixed tube sheet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02281102 CN2577228Y (en) | 2002-11-12 | 2002-11-12 | Pipe-casing type spiral boffle-plate heat-exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02281102 CN2577228Y (en) | 2002-11-12 | 2002-11-12 | Pipe-casing type spiral boffle-plate heat-exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2577228Y true CN2577228Y (en) | 2003-10-01 |
Family
ID=33743594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02281102 Expired - Fee Related CN2577228Y (en) | 2002-11-12 | 2002-11-12 | Pipe-casing type spiral boffle-plate heat-exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2577228Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111559218A (en) * | 2019-02-14 | 2020-08-21 | 浙江三花汽车零部件有限公司 | Heat exchanger |
| CN111561795A (en) * | 2019-02-14 | 2020-08-21 | 浙江三花汽车零部件有限公司 | Heat exchanger |
-
2002
- 2002-11-12 CN CN 02281102 patent/CN2577228Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111559218A (en) * | 2019-02-14 | 2020-08-21 | 浙江三花汽车零部件有限公司 | Heat exchanger |
| CN111561795A (en) * | 2019-02-14 | 2020-08-21 | 浙江三花汽车零部件有限公司 | Heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |