CN201891982U - Composite ceramic sleeve for shell and tube type waste heat boiler - Google Patents
Composite ceramic sleeve for shell and tube type waste heat boiler Download PDFInfo
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- CN201891982U CN201891982U CN2010205951265U CN201020595126U CN201891982U CN 201891982 U CN201891982 U CN 201891982U CN 2010205951265 U CN2010205951265 U CN 2010205951265U CN 201020595126 U CN201020595126 U CN 201020595126U CN 201891982 U CN201891982 U CN 201891982U
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- ceramic fiber
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- composite ceramics
- pipe
- sleeve pipe
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Abstract
The utility model belongs to the technical field of industrial boiler equipment, and provides a composite ceramic protecting sleeve for a shell and tube type waste heat boiler, which comprises a composite ceramic sleeve (1), ceramic fiber paper (4) and a ceramic fiber spacer (3). The composite ceramic sleeve (1) is a reducer pipe, the portion, which is inserted into a heat exchange hole of a high-temperature side pipe plate, of the composite ceramic sleeve is a thin pipe portion of the reducer pipe, an annular groove is disposed on the thin pipe portion and provided with the ceramic fiber paper (4) made from aluminum silicate fibers, a reducing position of the reducer pipe is a step structure, the ceramic fiber spacer (3) is sleeved on the thin pipe portion at the reducing position, and the ceramic fiber spacer (3) is an annular spacer with a certain thickness. The composite ceramic sleeve has the advantages of high reliability, low cost and convenience in processing and manufacturing, and takes the measures of the end annular groove, the ceramic fiber paper, the ceramic fiber spacer and the like to realize low breakage during a running cycle.
Description
Technical field
The utility model belongs to industrial boiler device technique field, relates generally to a kind of shell of pipe type waste heat boiler composite ceramics protective casing.
Background technique
In modern industry, waste heat boiler is to reclaim general, the most maximum a kind of technical equipment that heat energy is used in the energy conservation, and its promotion and application play a part very important to the saving of the energy.The tube side high temperature side medium of waste heat boiler mostly is vapor plume, process gas etc., and its temperature is higher, how about 1000 degrees centigrade, have in addition reached 1400 ℃, the heat insulation protection of suction side tube sheet and heat exchanging tube becomes the key problem in technology of waste heat boiler.Because what can under high pressure resist high temperature like this in the current material is rare.Prior art adopts at the heat-resisting heat insulation layer of tube sheet side coated non-metallic more, and inserts a protective casing at the heat exchanging tube entrance point.The protective casing prior art adopts metal or corundum ceramic more, and is at high temperature ceramic in the majority.But the deficiency that the corundum ceramic sleeve pipe in use reflects is also more, and excessive with the temperature difference that it inserts in the heat exchanging tube as porcelain bushing temperature in the nonmetal heat-resisting heat insulation layer that the tube sheet side applies, corundum ceramic thermal shock performance deficiency causes thermal shock cracked; Structural design fails to solve porcelain bushing extruding such as temperature difference stress that the external world passes over and distortion, and the inharmonious problem such as damage that causes of distortion between porcelain bushing, the nonmetal refractory insulating layer of tube sheet side and the tube sheet; Corundum ceramic ceramic fiber paper that twine the end comes off, and causes problems such as tube sheet and heat exchanging tube local overheating.Because protective casing is the key components and parts of this equipment, its usability has a strong impact on device security and working life.
Lasting high along with energy prices, thus more and more higher to the requirement of the Security of waste heat boiler and long-term operation, therefore be starved of better, with low cost, the composite ceramics protective casing that can long-term operation of a kind of performance.
Summary of the invention
The purpose of this utility model is to propose a kind of shell of pipe type waste heat boiler composite ceramics protective casing; the corundum ceramic thermal shock resistance is poor in order to solve, impact resistance deficiency, corundum ceramic nozzle overcoat can't be resisted extraneous temperature difference stress and distortion etc. and be caused problems such as pottery damage, and with low cost.
The utility model is finished the technological scheme that its invention task taked:
A kind of shell of pipe type waste heat boiler composite ceramics protective casing, constitute by composite ceramics sleeve pipe, ceramic fiber paper and ceramic fiber pad, described composite ceramics sleeve pipe is a reducer pipe, the tubule of composite ceramics sleeve pipe partly inserts in the high temperature side plate tube sheet heat exchange hole, tubule partly is provided with annular groove, is provided with the ceramic fiber paper of being made by aluminum silicate fiber in the described annular groove; The thick tube part of composite ceramics sleeve pipe combines with insulated lining, the reducing place of described reducer pipe is a ledge structure, be equipped with the ceramic fiber pad of being made by aluminum silicate fiber on the tubule part at reducing place, described ceramic fiber pad is for having certain thickness annular gasket.
The beneficial effects of the utility model are:
1, operational safety height
Because the utility model adopted composite ceramics, to compare its impact toughness, bending strength, thermal shock resistance with corundum ceramic and all be significantly improved, corundum ceramic fragility is big, and shortcomings such as poor impact toughness are improved, and its operational safety is significantly improved.In addition, be provided with a ceramic fiber pad at special position again, be used to absorb the thermal distortion of composite ceramics sleeve pipe and insulated lining transmission, its operational safety is significantly improved once more.
2, spoilage is low in the operation period
Because the utility model has adopted measures such as end recesses, ceramic fiber paper, ceramic fiber pad, the ceramic cracked generation of having avoided temperature difference stress and thermal shock etc. to cause reduces spoilage.
3, with low cost, convenient processing and manufacture
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, composite ceramics sleeve pipe, 2, insulated lining, 3, the ceramic fiber pad, 4, ceramic fiber paper.
Embodiment
The present invention is further described with embodiment in conjunction with the accompanying drawings:
As shown in Figure 1; a kind of shell of pipe type waste heat boiler composite ceramics protective casing; be made of composite ceramics sleeve pipe 1, ceramic fiber paper 4 and ceramic fiber pad 3, described composite ceramics sleeve pipe 1 one reducer pipes, composite ceramics sleeve pipe 1 are by adding ZrO at original corundum ceramic
2, Cr
2O
3Powder, TiO
2Make Deng composition, composite ceramics sleeve pipe 1 is a reducer pipe, be divided into thick tube part and tubule part, tubule partly inserts in the heat exchange hole of high temperature side plate pipe, tubule partly is provided with annular groove, be coated with one deck ceramic fiber paper 4 in the annular groove, ceramic fiber paper 4 is made by aluminum silicate fiber, possesses good heat-shielding performance and resistance to high temperature ceramic fiber paper 4 and is arranged on and can effectively prevents the heat exchanging tube overtemperature in the annular groove and be difficult for being blown off by tube side gas; An end that combines with insulated lining 2 is the thick tube part of composite ceramics sleeve pipe 1, the reducing place of described reducer pipe is a ledge structure, on the tubule part at reducing place, be equipped with ceramic fiber pad 3, ceramic fiber pad 3 is made by aluminum silicate fiber, and described ceramic fiber pad 3 is for having certain thickness annular gasket.Installation process of the present utility model is: ceramic fiber paper 4 is installed in composite ceramics sleeve pipe 1 annular groove, is put ceramic fiber pad 3 and insert then in the heat exchange pore of tube sheet on high temperature side, guarantee that ceramic fiber pad 3 contacts well with tube sheet and heat exchanging tube end.The construction insulated lining makes insulated lining and composite ceramics thimble joint good, surfacing.
Claims (1)
1. shell of pipe type waste heat boiler composite ceramics sleeve pipe, it is characterized in that: constitute by composite ceramics sleeve pipe (1), ceramic fiber paper (4) and ceramic fiber pad (3), described composite ceramics sleeve pipe (1) is a reducer pipe, the tubule of composite ceramics sleeve pipe (1) partly inserts in the high temperature side plate tube sheet heat exchange hole, tubule partly is provided with annular groove, is provided with the ceramic fiber paper of being made by aluminum silicate fiber (4) in the described annular groove; The thick tube part of composite ceramics sleeve pipe (1) combines with insulated lining (2); The reducing place of described reducer pipe is a ledge structure, is equipped with the ceramic fiber pad of being made by aluminum silicate fiber (3) on the tubule part at reducing place; Described ceramic fiber pad (3) is for having certain thickness annular gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205951265U CN201891982U (en) | 2010-11-08 | 2010-11-08 | Composite ceramic sleeve for shell and tube type waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205951265U CN201891982U (en) | 2010-11-08 | 2010-11-08 | Composite ceramic sleeve for shell and tube type waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891982U true CN201891982U (en) | 2011-07-06 |
Family
ID=44221458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205951265U Expired - Lifetime CN201891982U (en) | 2010-11-08 | 2010-11-08 | Composite ceramic sleeve for shell and tube type waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201891982U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997217A (en) * | 2012-12-12 | 2013-03-27 | 江苏焱鑫科技股份有限公司 | Protective lining structure for flexible tube plate of vertical waste heat boiler |
| CN109253635A (en) * | 2018-09-13 | 2019-01-22 | 茂名重力石化装备股份公司 | A kind of double-jacket tube rapid-cooling heat exchanger |
| CN109579600A (en) * | 2018-12-27 | 2019-04-05 | 苏州海陆重工股份有限公司 | The gas inlet structure of multitubular boiler |
-
2010
- 2010-11-08 CN CN2010205951265U patent/CN201891982U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997217A (en) * | 2012-12-12 | 2013-03-27 | 江苏焱鑫科技股份有限公司 | Protective lining structure for flexible tube plate of vertical waste heat boiler |
| CN102997217B (en) * | 2012-12-12 | 2014-07-09 | 江苏焱鑫科技股份有限公司 | Protective lining structure for flexible tube plate of vertical waste heat boiler |
| CN109253635A (en) * | 2018-09-13 | 2019-01-22 | 茂名重力石化装备股份公司 | A kind of double-jacket tube rapid-cooling heat exchanger |
| CN109579600A (en) * | 2018-12-27 | 2019-04-05 | 苏州海陆重工股份有限公司 | The gas inlet structure of multitubular boiler |
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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 |
Address after: 471003 No. 8, Yan Guang road, high and new technology development zone, Luoyang, Henan Patentee after: Luoyang Ruichang Environmental Engineering Co., Ltd. Address before: 471003 No. 8, Yan Guang road, high and new technology development zone, Luoyang, Henan Patentee before: Luoyang Ruichang Petrochemical Equipment Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110706 |
|
| CX01 | Expiry of patent term |