CN203642217U - Radiant-tube-type heat exchanger - Google Patents
Radiant-tube-type heat exchanger Download PDFInfo
- Publication number
- CN203642217U CN203642217U CN201320719592.3U CN201320719592U CN203642217U CN 203642217 U CN203642217 U CN 203642217U CN 201320719592 U CN201320719592 U CN 201320719592U CN 203642217 U CN203642217 U CN 203642217U
- Authority
- CN
- China
- Prior art keywords
- tube
- heat exchanger
- sleeve
- radiant
- middle sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 10
- 239000003063 flame retardant Substances 0.000 claims description 5
- 239000000779 smoke Substances 0.000 abstract 2
- 239000002912 waste gas Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air Supply (AREA)
Abstract
The utility model relates to a radiant-tube-type heat exchanger. The radiant-tube-type heat exchanger comprises an inner sleeve, a middle sleeve, a heat exchange tube with fins, and an outer sleeve, wherein the middle sleeve is sleeved on the inner sleeve; the outer sleeve is sleeved on the middle sleeve; one end of the heat exchange tube is closed; the other end of the heat exchange tube is connected with the middle sleeve; one end of the middle sleeve far away from the heat exchange tube is closed; a combustion air inlet is formed in one end of the inner sleeve; the other end of the inner sleeve stretches into the heat exchange tube; a connecting structure connected with a radiant tube is arranged at one end of the outer sleeve near the heat exchange tube; the end of the outer sleeve far away from the heat exchange tube is closed; a smoke outlet and a combustion air outlet are formed in the outer sleeve; the smoke outlet is communicated with a gap cavity between the middle sleeve and the outer sleeve; the combustion air outlet penetrates through the gap cavity between the middle sleeve and the outer sleeve and is communicated with the gap cavity between the middle sleeve and the outer sleeve. The radiant-tube-type heat exchanger has the advantages as follows: simple and reasonable structure, high heat exchange efficiency and small combustion air pressure loss.
Description
Technical field
The utility model relates to a kind of radiant tube heat exchanger.
Background technology
The end of the radiant tube in industrial heating furnace is provided with radiant tube heat exchanger, and the waste gas that radiant tube heat exchanger utilizes radiant tube to discharge heats combustion air, mentions the temperature of the combustion air that enters burner, reaches energy-conservation object.
Existing radiant tube heat exchanger complex structure, heat exchange efficiency is low, larger to the resistance of Air Flow, and the crushing of fire-retardant air is obvious.
Utility model content
Technical problem to be solved in the utility model is: a kind of radiant tube heat exchanger is provided, improves heat exchange efficiency, the crushing of combustion air.
The utility model solves the technical scheme that its technical problem adopts: a kind of radiant tube heat exchanger, comprise inner sleeve, middle sleeve, with heat exchanger tube and the outer tube of fin, middle sleeve is enclosed within on inner sleeve, outer tube is enclosed within on middle sleeve, the sealing of heat exchanger tube one end, the other end is connected with middle sleeve, one end away from heat exchanger tube sealing of middle sleeve, one end of inner sleeve is combustion air entrance, the other end of inner sleeve extends in heat exchanger tube, one end of the close heat exchanger tube of outer tube has the syndeton being connected with radiant tube on being, one end away from heat exchanger tube sealing of outer tube, on outer tube, there is exhaust opening and combustion air outlet, exhaust opening communicates with the spatia between middle sleeve and outer tube, the spatia of fire-retardant air outlet slit through middle sleeve and outer tube, and communicate with the spatia between middle sleeve and outer tube.
For ease of being connected and installed, the syndeton that outer tube is connected with radiant tube is flange, in combustion air entrance, exhaust opening, combustion air outlet, has the flange for being connected with pipeline.
On the inner and outer wall of heat exchanger tube, be all provided with fin.
The body portion of heat exchanger tube is spliced by multiple fin rings, and the fin on adjacent fins ring staggers each other.
Heat exchanger tube seals by end cap, on the outer wall of end cap, has fin, between adjacent fins ring, and is welded to connect between fin and end cap.
The beneficial effects of the utility model are: simple in structure, rationally, heat exchange efficiency is high, and fire-retardant air crushing is little.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated;
Fig. 1 is structural representation of the present utility model;
Wherein, 1. inner sleeve, 2. middle sleeve, 3. heat exchanger tube, 3-1. fin ring, 3-2. end cap, 4. outer tube, 5. combustion air entrance, 6. exhaust opening, 7. combustion air outlet.
Detailed description of the invention
As shown in Figure 1, a kind of radiant tube heat exchanger, comprise inner sleeve 1, middle sleeve 2, with heat exchanger tube 3 and the outer tube 4 of fin, middle sleeve 2 is enclosed within on inner sleeve 1, outer tube 4 is enclosed within on middle sleeve 2, heat exchanger tube 3 one end sealings, the other end is connected with middle sleeve 2, one end away from heat exchanger tube 3 sealing of middle sleeve 2, one end of inner sleeve 1 is combustion air entrance 5, the other end of inner sleeve 1 extends in heat exchanger tube 3, one end of the close heat exchanger tube 3 of outer tube 4 has the flange being connected with radiant tube on being, one end away from heat exchanger tube 3 sealing of outer tube 4, on outer tube 4, there is exhaust opening 6 and combustion air outlet 7, exhaust opening 6 communicates with the spatia between middle sleeve 2 and outer tube 4, the spatia of fire-retardant air outlet slit through middle sleeve 2 and outer tube 4, and communicate with the spatia between middle sleeve 2 and outer tube 4.
In combustion air entrance 5, exhaust opening 6, combustion air outlet 7, there is the flange for being connected with pipeline.
On the inner and outer wall of heat exchanger tube 3, be all provided with fin.
The body portion of heat exchanger tube 3 is spliced by multiple fin ring 3-1, and the fin on adjacent fins ring 3-1 staggers each other.On each fin ring, have the circumferential equally distributed fin of two circles, between two circle fins, keep at a certain distance away, the direction of fin is parallel with axis, and axial two adjacent fins are arranged in same axially upper, and the outside one side of fin is carried out chamfering.
Heat exchanger tube 3 seals by end cap 3-2, on the outer wall of end cap 3-2, has fin, between adjacent fins ring 3-1, and is welded to connect between fin and end cap 3-2.
Combustion air enters inner sleeve 1 from the combustion air entrance of inner sleeve 1, and turn back and enter the spatia between inner sleeve 1 and heat exchanger tube 3 at the end of inner sleeve 1, carry out heat exchange with high-temp waste gas, after heat exchange, combustion air exports 7 discharges by combustion air, enter burner, high-temp waste gas enters the spatia between outer tube 4 and middle sleeve 2 along the outer wall of heat exchanger tube 3, and discharges by the exhaust opening 6 on outer tube 4.
Claims (5)
1. a radiant tube heat exchanger, it is characterized in that: comprise inner sleeve (1), middle sleeve (2), with heat exchanger tube (3) and the outer tube (4) of fin, middle sleeve (2) is enclosed within on inner sleeve (1), outer tube (4) is enclosed within on middle sleeve (2), the sealing of heat exchanger tube (3) one end, the other end is connected with middle sleeve (2), one end away from heat exchanger tube (3) sealing of middle sleeve (2), one end of inner sleeve (1) is combustion air entrance (5), the other end of inner sleeve (1) extends in heat exchanger tube (3), one end of the close heat exchanger tube (3) of outer tube (4) has the syndeton being connected with radiant tube on being, one end away from heat exchanger tube (3) sealing of outer tube (4), on outer tube (4), there is exhaust opening (6) and combustion air outlet (7), exhaust opening (6) communicates with the spatia between middle sleeve (2) and outer tube (4), the spatia of fire-retardant air outlet slit through middle sleeve (2) and outer tube (4), and communicate with the spatia between middle sleeve (2) and outer tube (4).
2. radiant tube heat exchanger according to claim 1, it is characterized in that: the syndeton that described outer tube (4) is connected with radiant tube is flange thering is the flange for being connected with pipeline in combustion air entrance (5), exhaust opening (6), combustion air outlet (7).
3. radiant tube heat exchanger according to claim 1, is characterized in that: on the inner and outer wall of described heat exchanger tube (3), be all provided with fin.
4. according to the radiant tube heat exchanger described in claim 1 or 3, it is characterized in that: the body portion of described heat exchanger tube (3) is spliced by multiple fin rings (3-1), and the fin on adjacent fins ring (3-1) staggers each other.
5. radiant tube heat exchanger according to claim 4, it is characterized in that: described heat exchanger tube (3) is by end cap (3-2) sealing, on the outer wall of end cap (3-2), there is fin, between adjacent fins ring (3-1), and be welded to connect between fin and end cap (3-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320719592.3U CN203642217U (en) | 2013-11-14 | 2013-11-14 | Radiant-tube-type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320719592.3U CN203642217U (en) | 2013-11-14 | 2013-11-14 | Radiant-tube-type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203642217U true CN203642217U (en) | 2014-06-11 |
Family
ID=50873458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320719592.3U Expired - Fee Related CN203642217U (en) | 2013-11-14 | 2013-11-14 | Radiant-tube-type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203642217U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644577A (en) * | 2013-11-22 | 2014-03-19 | 江苏东方成套设备制造有限公司 | Radiant tube heat exchanger |
| CN104913625A (en) * | 2015-06-30 | 2015-09-16 | 洛阳锐焱节能科技有限公司 | Novel waste heat recovery system for drying rotating furnace |
| CN105042625A (en) * | 2015-09-11 | 2015-11-11 | 上海宝钢节能环保技术有限公司 | Self-preheating radiant tube type air preheater having long service life |
| CN108167857A (en) * | 2017-12-22 | 2018-06-15 | 东南大学 | A kind of high efficiency sleeve type steam air heater device |
-
2013
- 2013-11-14 CN CN201320719592.3U patent/CN203642217U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644577A (en) * | 2013-11-22 | 2014-03-19 | 江苏东方成套设备制造有限公司 | Radiant tube heat exchanger |
| CN104913625A (en) * | 2015-06-30 | 2015-09-16 | 洛阳锐焱节能科技有限公司 | Novel waste heat recovery system for drying rotating furnace |
| CN105042625A (en) * | 2015-09-11 | 2015-11-11 | 上海宝钢节能环保技术有限公司 | Self-preheating radiant tube type air preheater having long service life |
| CN108167857A (en) * | 2017-12-22 | 2018-06-15 | 东南大学 | A kind of high efficiency sleeve type steam air heater device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214537 Xinqiao Industrial Park, Jingjiang, Jiangsu, Taizhou Patentee after: JIANGSU EASTERN COMPLETE EQUIPMENT MANUFACTURING GROUP CO.,LTD. Address before: 214537 Xinqiao Industrial Park, Jingjiang, Jiangsu, Taizhou Patentee before: JIANGSU DONGFANG WHOLE-SET EQUIPMENT MANUFACTURING Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 |