CN218583874U - Sealing structure of waste heat boiler tube plate and heat exchange tube - Google Patents
Sealing structure of waste heat boiler tube plate and heat exchange tube Download PDFInfo
- Publication number
- CN218583874U CN218583874U CN202222277761.4U CN202222277761U CN218583874U CN 218583874 U CN218583874 U CN 218583874U CN 202222277761 U CN202222277761 U CN 202222277761U CN 218583874 U CN218583874 U CN 218583874U
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- heat
- tube
- heat exchange
- exchange tube
- waste heat
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
An object of the utility model is to provide a seal structure of waste heat boiler tube sheet and heat exchange tube, including tube sheet, heat exchange tube, insert ceramic sleeve in the heat exchange tube, the tube sheet is located the heat exchange tube outside, adopts intensity welding and pastes the bloated mode of subsides to be connected between tube sheet and the heat exchange tube, and the heat-resisting acid-resistant lining of insulation material is fixed through the grapple in the tube sheet outside. The utility model discloses a connection structure installs acid corrosion resistant's ceramic abrasionproof sleeve pipe in waste heat boiler entrance, has ensured that waste heat boiler entry end disappearance corrodes the phenomenon. The joint of the heat exchange tube and the tube plate adopts a mode of strength welding and sticking expansion, so that the sealing performance of the waste heat boiler is ensured.
Description
Technical Field
The utility model relates to a waste heat boiler, specifically speaking are waste heat boiler seal structure.
Background
The import quantity of the mixed aromatic hydrocarbon is increased year by year, and particularly the import quantity of the sulfur-containing aromatic hydrocarbon is greatly increased. As sulfur-containing tail gas generated in the processing process of aromatic hydrocarbon has great harm, and meanwhile, the product quality is seriously influenced by the presence of sulfur. Therefore, sulfur recovery technology in the aromatic hydrocarbon industry is increasingly important. In the sulfur recovery system, the utility model of the structure of the waste heat boiler and the structural improvement of the key parts have obvious effect on the promotion of the overall index of the waste heat boiler.
Disclosure of Invention
An object of the utility model is to provide a seal structure of exhaust-heat boiler tube sheet and heat exchange tube that can ensure exhaust-heat boiler entry end disappearance corrosion, guarantee exhaust-heat boiler leakproofness.
The purpose of the utility model is realized like this:
the utility model relates to a seal structure of exhaust-heat boiler tube sheet and heat exchange tube, characterized by: the heat-insulating and acid-resisting heat-exchanging tube comprises a tube plate and a heat-exchanging tube, wherein a ceramic sleeve is inserted into the heat-exchanging tube, the tube plate is positioned outside the heat-exchanging tube, the tube plate is connected with the heat-exchanging tube in a strength welding and sticking expansion mode, and a heat-insulating and acid-resisting lining made of a heat-insulating material is fixed on the outer side of the tube plate through a grab nail.
The utility model discloses can also include:
1. between the tube plate and the heat exchange tube, one side close to the heat-resistant and acid-resistant lining of the heat-insulating material is welded in strength, and the rest part is stuck and expanded.
2. The part of the ceramic sleeve inserted into the heat exchange tube is wound with ceramic fiber paper or ceramic fiber cotton.
3. The surface of the tube plate on one side of the heat-resistant and acid-resistant lining of the heat-insulating material is subjected to oil removal and rust removal treatment, and thermal aluminum spraying is carried out.
4. Before the ceramic sleeve is inserted into the heat exchange tube, the heat-resistant and acid-resistant lining of the heat-insulating material is firstly fixed.
The utility model has the advantages that: the utility model discloses a connection structure installs acid-resistant corruption's ceramic abrasionproof sleeve pipe in waste heat boiler entrance, has ensured that waste heat boiler entry end does not appear corrosion. The joint of the heat exchange tube and the tube plate adopts a mode of strength welding and sticking expansion, so that the sealing performance of the waste heat boiler is ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be described in more detail below by way of example with reference to the accompanying drawings:
with reference to fig. 1, the utility model relates to a connection structure between a waste heat boiler tube plate 3 and a heat exchange tube 1, which comprises a waste heat boiler tube plate 3, a waste heat boiler heat exchange tube 1, a ceramic sleeve 2 and a heat-resistant and acid-resistant lining 5 made of heat-insulating materials.
And (3) carrying out oil removal and rust removal treatment on the outer surface of the waste heat boiler tube plate 3, and then carrying out thermal aluminum spraying. The tube plate 3 is welded with the heat exchange tube 1. The joint of the heat exchange tube 1 and the tube plate 3 adopts a mode of strength welding and sticking expansion, and the inner side of the heat exchange tube 1 is close to the sticking expansion, so that the sealing performance of the waste heat boiler can be ensured, and the gap corrosion can be effectively prevented. The outside adopts the strength to weld and can prevent thereby to produce the revealing of clearance emergence flue gas or harmful gas when used heat boiler has great vibration. And the outside of the tube plate 3 is welded with a grab nail 6 for fixing a heat-insulating material heat-resistant acid-resistant lining 5. Before the construction of the heat insulation material, the ceramic anti-abrasion sleeve 2 is put in place, and a layer of ceramic fiber paper or ceramic fiber cotton 4 is wrapped on the part of the ceramic anti-abrasion sleeve 2 inserted into the heat exchange tube 1 of the waste heat boiler, so that the sleeve is firmly fixed and is not damaged.
As shown in fig. 1, a strength welding and stick expansion mode is adopted between the tube plate 3 and the heat exchange tube 1, wherein the width t2 sticks expansion and the width t3 is strength welding. The outer surface of the tube plate 3 is thermally sprayed with aluminum and then welded with the nails. The width t1 is the thickness of the heat insulation material, and before the heat insulation material is constructed, a part of the ceramic abrasion-proof sleeve 2 is inserted into the heat exchange tube 1, and the part inserted into the heat exchange tube 1 of the waste heat boiler is wrapped with a layer of ceramic fiber paper or ceramic fiber cotton 4.
Claims (5)
1. The utility model provides a seal structure of exhaust-heat boiler tube sheet and heat exchange tube which characterized by: the heat-insulating and acid-resisting heat-exchanging tube comprises a tube plate and a heat-exchanging tube, wherein a ceramic sleeve is inserted into the heat-exchanging tube, the tube plate is positioned outside the heat-exchanging tube, the tube plate is connected with the heat-exchanging tube in a strength welding and sticking expansion mode, and a heat-insulating and acid-resisting lining made of a heat-insulating material is fixed on the outer side of the tube plate through a grab nail.
2. A sealing structure for a tube plate and a heat exchange tube of a waste heat boiler as claimed in claim 1, wherein: between the tube plate and the heat exchange tube, one side close to the heat-resistant and acid-resistant lining of the heat-insulating material is welded in strength, and the rest part is attached and expanded.
3. A sealing structure for a tube plate and a heat exchange tube of a waste heat boiler as claimed in claim 1, wherein: the part of the ceramic sleeve inserted into the heat exchange tube is wound with ceramic fiber paper or ceramic fiber cotton.
4. The sealing structure for the tube plate and the heat exchange tube of the waste heat boiler as set forth in claim 1, wherein: the surface of the pipe plate on one side of the heat-resistant and acid-resistant lining of the heat-insulating material is subjected to oil and rust removal treatment, and thermal aluminum spraying is performed.
5. A sealing structure for a tube plate and a heat exchange tube of a waste heat boiler as claimed in claim 1, wherein: before the ceramic sleeve is inserted into the heat exchange tube, the heat-resistant and acid-resistant lining of the heat-insulating material is fixed in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277761.4U CN218583874U (en) | 2022-08-29 | 2022-08-29 | Sealing structure of waste heat boiler tube plate and heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277761.4U CN218583874U (en) | 2022-08-29 | 2022-08-29 | Sealing structure of waste heat boiler tube plate and heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218583874U true CN218583874U (en) | 2023-03-07 |
Family
ID=85363599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222277761.4U Active CN218583874U (en) | 2022-08-29 | 2022-08-29 | Sealing structure of waste heat boiler tube plate and heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218583874U (en) |
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2022
- 2022-08-29 CN CN202222277761.4U patent/CN218583874U/en active Active
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