CN201462896U - Seal device for heat exchange tube of horizontal air preheating device of boiler - Google Patents
Seal device for heat exchange tube of horizontal air preheating device of boiler Download PDFInfo
- Publication number
- CN201462896U CN201462896U CN2009201254739U CN200920125473U CN201462896U CN 201462896 U CN201462896 U CN 201462896U CN 2009201254739 U CN2009201254739 U CN 2009201254739U CN 200920125473 U CN200920125473 U CN 200920125473U CN 201462896 U CN201462896 U CN 201462896U
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- China
- Prior art keywords
- heat exchange
- tube
- exchange tube
- seal
- boiler
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- Expired - Fee Related
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- 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)
Abstract
The utility model discloses a seal device for the heat exchange tube of the horizontal air preheating device of a boiler. The connecting seal device comprises a tube plate (1) of the air preheating device of a boiler, a heat exchange tube (2), a seal loop (3) and a seal filler (4), wherein the seal loop (3) is welded on the tube hole (5) of the tube plate (1), the heat exchange tube (2) is inserted into the tube hole (5) of the tube plate (1), and the seal filler (4) is filled in the seal loop (3). The utility model overcomes the defects of traditional methods. The seal device used for the heat exchange tube of the air preheating device of the boiler has the advantages that when the heat exchange tube is exchanged, the heat exchange tube can be simply exchanged as long as the seal filler of the air preheating device of the boiler and broken heat exchange tube are taken out; the work load for exchanging the heat exchange tube of the air preheating device is obviously reduced, and no maintenance equipment such as welding machines, grinding machines, etc is required; the cost of maintenance is obviously reduced. The utility model is suitable for industrial enterprises having boilers.
Description
Technical field
The present invention is relevant with heat transmission equipment, and is also relevant with Sealing Technology, special relevant with horizontal boiler air preheater heat exchanger tube sealing device.
Background technology
At present for the horizontal boiler air preheater, welded seal is all adopted in the sealing of air preheater heat exchanger tube and tube sheet, this sealing means has its superiority aspect sealing property, but there is following defective in the air preheater of sealing aspect plant maintenance in this way: could take out after 1. more must grinding off weld seam earlier during heat exchanger tube; 2. workload and labour intensity are big.
For this reason, people have proposed some technical schemes, for example No. 99222622.8 " a kind of hot blast heat exchanger ", No. 200420053571.3 " shell and tube enamel heat exchangers " of Chinese patent application part, No. 200810156946.1 " detachable type high-efficiency casing heat exchanger ", No. 200520073246.8 " a kind of solar thermal collectors of replaceable heat exchanger tube " etc.Though the sealing of these heat exchanger junctions is different from conventional art, repair and replacement are still not very convenient.
Summary of the invention
The purpose of this utility model is to provide horizontal boiler air preheater heat exchanger tube sealing device, to overcome the defective of prior art, reaches that heat exchanger tube is easily changed, the purpose of easy-maintaining.
The designer is by observational study, and the boiler air preheater heat exchanger tube that provides connects sealing device and comprises boiler air preheater tube sheet, heat exchanger tube, sealing ring and airtight and watertight padding, and sealing ring is welded on the pore of tube sheet; Heat exchanger tube inserts in the pore of tube sheet, and airtight and watertight padding is contained in the sealing ring.
The internal diameter of above-mentioned sealing ring is consistent with the pore internal diameter of tube sheet.
Above-mentioned airtight and watertight padding is special asbestos seal ring.
Because airtight and watertight padding has softness, can effectively the slit between heat exchanger tube and the tube sheet pore be blocked, the inside and outside heat transferring medium of pipe can not gang up, leak.
Horizontal boiler air preheater heat exchanger tube sealing device of the present utility model can solve the defective of conventional seals method.This device is used in steam power plant of urn good fortune (group) Co., Ltd, after the boiler air preheater heat exchanger tube adopts the sealing device, obtain following effect: when 1. changing heat exchanger tube, only need the boiler air preheater airtight and watertight padding is taken out, take out the heat exchanger tube that damages, can carry out the replacing of heat exchanger tube, operation is simple; 2. obviously reduce the air preheater heat exchanger tube and change workload, do not need repair apparatus such as welding machine, grinding machine; 3. can obviously reduce the cost of overhaul.Be fit to have industrial enterprise's employing of boiler.
Description of drawings
Fig. 1 is a horizontal boiler air preheater heat exchanger tube sealing device schematic diagram, and Fig. 2 is the schematic diagram of the airtight and watertight padding of packing in the sealing ring, and Fig. 3 is that A-A is to view.1 is tube sheet among the figure, and 2 is heat exchanger tube, and 3 is sealing ring, and 4 are airtight and watertight padding, and 5 is pore.
The specific embodiment
Embodiment: it is that the boiler air preheater of Φ 40mm carries out the heat exchanger tube sealing to model for the UG-130/3.82 diameter that steam power plant of urn good fortune (group) Co., Ltd adopts this device, connect sealing device as accompanying drawing 1. and comprise boiler air preheater tube sheet 1, heat exchanger tube 2, sealing ring 3 and airtight and watertight padding 4, sealing ring 3 is welded on the pore 5 of tube sheet 1; Heat exchanger tube 2 inserts in the pore 5 of tube sheet 1, and airtight and watertight padding 4 is contained in the sealing ring 3.
The internal diameter of sealing ring 3 is consistent with pore 5 internal diameters of tube sheet 1, is Φ 50mm, and airtight and watertight padding 4 is an asbestos seal ring; 2 asbestos seal rings of packing in each sealing ring 3.
Claims (3)
1. horizontal boiler air preheater heat exchanger tube sealing device, it is characterized in that the sealing device comprises boiler air preheater tube sheet (1), heat exchanger tube (2), sealing ring (3) and airtight and watertight padding (4), sealing ring (3) is welded on the pore (5) of tube sheet (1); Heat exchanger tube (2) inserts in the pore (5) of tube sheet (1), and airtight and watertight padding (4) is contained in the sealing ring (3).
2. sealing device as claimed in claim 1 is characterized in that the internal diameter of described sealing ring (3) is consistent with pore (5) internal diameter of tube sheet (1).
3. sealing device as claimed in claim 1 is characterized in that described airtight and watertight padding (4) is an asbestos seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201254739U CN201462896U (en) | 2009-06-19 | 2009-06-19 | Seal device for heat exchange tube of horizontal air preheating device of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201254739U CN201462896U (en) | 2009-06-19 | 2009-06-19 | Seal device for heat exchange tube of horizontal air preheating device of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201462896U true CN201462896U (en) | 2010-05-12 |
Family
ID=42390248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201254739U Expired - Fee Related CN201462896U (en) | 2009-06-19 | 2009-06-19 | Seal device for heat exchange tube of horizontal air preheating device of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201462896U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167859A (en) * | 2018-01-31 | 2018-06-15 | 华电电力科学研究院有限公司 | The ball type pulverizer system bituminous coal fired boiler, which is mixed, burns 50% lignite safe explosion-proof device and method |
| CN111637303A (en) * | 2020-06-11 | 2020-09-08 | 安徽江淮松芝空调有限公司 | Universal top steaming and drainage four-way pipe structure |
-
2009
- 2009-06-19 CN CN2009201254739U patent/CN201462896U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167859A (en) * | 2018-01-31 | 2018-06-15 | 华电电力科学研究院有限公司 | The ball type pulverizer system bituminous coal fired boiler, which is mixed, burns 50% lignite safe explosion-proof device and method |
| CN108167859B (en) * | 2018-01-31 | 2023-06-27 | 华电电力科学研究院有限公司 | Safe anti-explosion device and method for 50% lignite blended combustion of bituminous coal boiler of middle-stored pulverizing system |
| CN111637303A (en) * | 2020-06-11 | 2020-09-08 | 安徽江淮松芝空调有限公司 | Universal top steaming and drainage four-way pipe structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20180619 |