CN203286917U - Steam air pre-heater - Google Patents
Steam air pre-heater Download PDFInfo
- Publication number
- CN203286917U CN203286917U CN2013202162726U CN201320216272U CN203286917U CN 203286917 U CN203286917 U CN 203286917U CN 2013202162726 U CN2013202162726 U CN 2013202162726U CN 201320216272 U CN201320216272 U CN 201320216272U CN 203286917 U CN203286917 U CN 203286917U
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- steam
- outlet
- casing
- heat exchanger
- box body
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Abstract
The utility model discloses a steam air pre-heater which is used for pre-heating air entering a garbage incinerator. The steam air pre-heater comprises a box body and an S-shaped tubular heat exchange tube, the box body is provided with an air inlet and an air outlet, an inlet of the S-shaped tubular heat exchange tube and an outlet of the S-shaped tubular heat exchange tube are connected with a steam inlet outside the box body and a steam outlet outside the box body respectively, straight tubes forming the S-shaped tubular heat exchange tube are located in the box body, the two ends of each straight tube extend out of the box body respectively, U-shaped elbow tubes for connecting the adjacent straight tubes are located outside the box body, and welding seams of the connecting portions of the U-shaped elbow tubes and the straight tubes are also located outside the box body. According to the steam air pre-heater, the U-shaped elbow tubes for forming the S-shaped tubular heat exchange tube and the welding seams of the connecting positions of the U-shaped elbow tubes and the straight tubes are all located outside the box body, if the welding seams leak, maintenance is easy, and maintenance efficiency is improved greatly.
Description
Technical field
The utility model relates to a kind of heat exchanger, enters the steam type airheater of waste incineration furnace air in particular for preheating.
Background technology
The steam type airheater of commonly using at present, comprise: casing, be provided with air inlet and air outlet on casing, be provided with coiled heat exchanger tube or straight pipe type heat exchanger tube in casing, the straight tube that forms the coiled heat exchanger tube all is positioned at casing with the U-bend that is connected adjacent straight tube, form the straight pipe type heat exchanger tube on arrange in a row pipe, vertical tube and under arrange in a row Guan Jun and be arranged in casing, the import of above-mentioned two kinds of heat exchanger tubes and outlet are connected with steam (vapor) outlet with casing steam inlet outward respectively.
The shortcoming that the steam type airheater of said structure exists is: because heat exchanger tube all is arranged in casing, the weld seam that forms while making heat exchanger tube also all is positioned at casing, if weld leakage is difficult to maintenance, overhaul efficiency is very low.
The utility model content
The technical problems to be solved in the utility model is: the steam type airheater that a kind of heat exchanger tube easy access is provided.
For solving the problems of the technologies described above, the utility model has adopted following technical scheme.
A kind of steam type airheater comprises: casing and coiled heat exchanger tube, be provided with air inlet and air outlet on casing, and the import of coiled heat exchanger tube is connected with steam (vapor) outlet with casing steam inlet outward respectively with outlet; Be characterized in: the straight tube that forms the coiled heat exchanger tube is positioned at casing, and the two ends of straight tube stretch out in respectively outside casing, make the U-bend that connects adjacent straight tube be positioned at outside casing, and the weld seam of U-bend and straight tube junction also is positioned at outside casing.
Further, aforesaid a kind of steam type airheater, wherein: the insulation case lid that can cover U-bend is arranged in the casing arranged outside.
Further, aforesaid a kind of steam type airheater, wherein: described coiled heat exchanger tube is divided into high pressure section and low pressure stage two parts, outlet is connected with high steam with the high steam import respectively with outlet in the import of high pressure section coiled heat exchanger tube, and outlet is connected with low-pressure steam with the low-pressure steam import respectively with outlet in the import of low pressure stage coiled heat exchanger tube.
Further, aforesaid a kind of steam type airheater, wherein: be provided with the deflector that air is distributed fast at the air inlet place.
The beneficial effects of the utility model: form the U-bend of coiled heat exchanger tube and the weld seam of U-bend and straight tube junction and all be positioned at outside casing,, if weld leakage is easy to maintenance, greatly improved overhaul efficiency.
Description of drawings
Fig. 1 is the plan structure schematic diagram of a kind of steam type airheater described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, a kind of steam type airheater described in the utility model is further described.
shown in Figure 1, a kind of steam type airheater described in the utility model, comprise: casing 1 and coiled heat exchanger tube, be provided with air inlet 2 and air outlet 3 on casing 1, the import of coiled heat exchanger tube is connected with steam (vapor) outlet with casing 1 steam inlet outward respectively with outlet---and the coiled heat exchanger tube described in the present embodiment is divided into high pressure section and low pressure stage two parts, outlet is connected with high steam with the high steam import respectively with outlet 61 in the import 51 of high pressure section coiled heat exchanger tube 41, outlet is connected with low-pressure steam with the low-pressure steam import respectively with outlet 6 in the import 5 of low pressure stage coiled heat exchanger tube 4, the straight tube that forms low pressure stage coiled heat exchanger tube 4 is positioned at casing 1, and the two ends of straight tube stretch out in respectively outside casing 1, make the U-bend that connects adjacent straight tube be positioned at outside casing 1, and the weld seam of U-bend and straight tube junction also is positioned at outside casing 1, and the insulation case lid 7 and 71 that can cover U-bend is arranged in casing 1 arranged outside, the straight tube that forms high pressure section coiled heat exchanger tube 41 is positioned at casing 1, and the two ends of straight tube stretch out in respectively outside casing 1, make the U-bend that connects adjacent straight tube be positioned at outside casing 1, and the weld seam of U-bend and straight tube junction also is positioned at outside casing 1, the insulation case lid 8 and 81 that can cover U-bend is arranged in casing 1 arranged outside, be provided with the deflector 21 that air is distributed fast at air inlet 2 places.
The operation principle of steam type airheater described in the utility model is as follows: air is entered in casing 1 by air inlet 2, low-pressure steam enters low pressure stage coiled heat exchanger tube 4 by import 5, high steam enters high pressure section coiled heat exchanger tube 41 by import 51, the air in casing 1 is flow through in low pressure stage coiled heat exchanger tube 4 and 41 heating of high pressure section coiled heat exchanger tube, hot-air after heating is sent from air outlet 3, steam in low pressure stage coiled heat exchanger tube 4 is discharged by outlet 6, and the steam in high pressure section coiled heat exchanger tube 41 is discharged by outlet 61.
Steam type airheater described in the utility model, form the U-bend of coiled heat exchanger tube and the weld seam of U-bend and straight tube junction and all be positioned at outside casing,, if weld leakage is easy to maintenance, greatly improved overhaul efficiency.
Claims (4)
1. steam type airheater comprises: casing and coiled heat exchanger tube, be provided with air inlet and air outlet on casing, and the import of coiled heat exchanger tube and outlet are connected with steam (vapor) outlet with the outer steam inlet of casing respectively; It is characterized in that: the straight tube that forms the coiled heat exchanger tube is positioned at casing, and the two ends of straight tube stretch out in respectively outside casing, make the U-bend that connects adjacent straight tube be positioned at outside casing, and the weld seam of U-bend and straight tube junction also is positioned at outside casing.
2. a kind of steam type airheater according to claim 1, is characterized in that: the insulation case lid that can cover U-bend is arranged in the casing arranged outside.
3. a kind of steam type airheater according to claim 1 and 2, it is characterized in that: described coiled heat exchanger tube is divided into high pressure section and low pressure stage two parts, outlet is connected with high steam with the high steam import respectively with outlet in the import of high pressure section coiled heat exchanger tube, and outlet is connected with low-pressure steam with the low-pressure steam import respectively with outlet in the import of low pressure stage coiled heat exchanger tube.
4. a kind of steam type airheater according to claim 1 and 2, is characterized in that: be provided with the deflector that air is distributed fast at the air inlet place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202162726U CN203286917U (en) | 2013-04-26 | 2013-04-26 | Steam air pre-heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202162726U CN203286917U (en) | 2013-04-26 | 2013-04-26 | Steam air pre-heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203286917U true CN203286917U (en) | 2013-11-13 |
Family
ID=49543275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202162726U Expired - Fee Related CN203286917U (en) | 2013-04-26 | 2013-04-26 | Steam air pre-heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203286917U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465797A (en) * | 2015-03-26 | 2016-04-06 | 无锡华光锅炉股份有限公司 | Steam air preheater device of waste incineration boiler |
| CN106439901A (en) * | 2016-09-30 | 2017-02-22 | 上海双木散热器制造有限公司 | Drawer type air preheater |
| CN108019772A (en) * | 2017-12-30 | 2018-05-11 | 上海康恒环境股份有限公司 | A kind of three-stage steam type airheater |
| CN109469909A (en) * | 2018-09-27 | 2019-03-15 | 上海双木散热器制造有限公司 | Control the steam air heater of dioxin concentration |
-
2013
- 2013-04-26 CN CN2013202162726U patent/CN203286917U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465797A (en) * | 2015-03-26 | 2016-04-06 | 无锡华光锅炉股份有限公司 | Steam air preheater device of waste incineration boiler |
| CN106439901A (en) * | 2016-09-30 | 2017-02-22 | 上海双木散热器制造有限公司 | Drawer type air preheater |
| CN106439901B (en) * | 2016-09-30 | 2018-07-10 | 上海双木散热器制造有限公司 | Drawer regenerative air heater |
| CN108019772A (en) * | 2017-12-30 | 2018-05-11 | 上海康恒环境股份有限公司 | A kind of three-stage steam type airheater |
| CN109469909A (en) * | 2018-09-27 | 2019-03-15 | 上海双木散热器制造有限公司 | Control the steam air heater of dioxin concentration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20160426 |