CN204922963U - Circulating fluidized bed boiler hood structure - Google Patents
Circulating fluidized bed boiler hood structure Download PDFInfo
- Publication number
- CN204922963U CN204922963U CN201520703638.1U CN201520703638U CN204922963U CN 204922963 U CN204922963 U CN 204922963U CN 201520703638 U CN201520703638 U CN 201520703638U CN 204922963 U CN204922963 U CN 204922963U
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- CN
- China
- Prior art keywords
- core pipe
- cap head
- cap
- tube connector
- fluidized bed
- 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
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model relates to a circulating fluidized bed boiler hood structure, it includes cap head, core pipe and connecting pipe, and the perpendicular rigid coupling in bottom of connecting pipe just should communicate with air distribution plate wind pore pair on the air distribution plate, and the connecting pipe internal thread is seted up at the top of connecting pipe, the bottom of core pipe offer with above -mentioned connecting pipe in screw -thread fit's core outside of tubes screw, the cap head spiral -lock that open side down is at the top of core pipe, the top end opening of core pipe and cap head inner chamber intercommunication, a plurality of cap head wind holes are offered at the border interval of cap head, pour into a mould refractory material on the air distribution plate and form the pouring bed of material after the installation of core pipe, the thickness of the pouring bed of material is greater than the height of connecting pipe. The utility model has the advantages of simple structure, convenient, the easy dismouting of realization and structure are firm reliable.
Description
Technical field
The utility model relates to a kind of boiler cloth wind field, specifically a kind of blast cap of circulating fluidized bed boiler structure.
Background technology
CFBB has fuel wide accommodation, desulfuration in furnace efficiency is high, nitrogen oxide emission is little, efficiency of combustion is high, load regulation rate is large and lime-ash such as can to fully utilize at the advantage, has a wide range of applications in the field such as station boiler, Industrial Boiler.
Air-distribution device is one of critical component of CFBB, and it is made up of blast cap and water-cooled distributor, and the blast cap of employing has various ways perhaps, and typical structure has bell-jar, bacterium shape, T-shaped, pig tail type and wind cap etc.Above in several blast cap, bell-type windshield practical effect is best, and new design boiler is substantially all adopt bell-type windshield.This blast cap is generally made up of cap head and core pipe, core pipe is directly welded on air distribution plate, in long-term running, because operating ambient temperature is high, wind speed large, a lot of blast cap is caused to occur the phenomenons such as heavy wear, carbonization, cap head blow off, so often need to carry out blast cap examine and replace, the reasonability of cap structure directly affects the efficiency of maintenance, the prior fluid effect that can affect fluid bed, directly affects the efficiency of combustion of boiler, thus the economic security that have impact on boiler is run.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of structure simple, realize convenient, be easy to dismounting and the reliable blast cap of circulating fluidized bed boiler structure of stabilized structure.
For solving the problems of the technologies described above, blast cap of circulating fluidized bed boiler structure of the present utility model comprises cap head and core pipe, its design feature is that this cap structure also comprises tube connector, the bottom vertical of this tube connector to be fixed on air distribution plate and correspondingly with air distribution plate air holes to be communicated with, and tube connector internal thread is offered at the top of tube connector; The bottom of described core pipe offers the core pipe external screw thread with above-mentioned tube connector screw-internal thread fit, and the cap head spiral-lock that Open Side Down is at the top of core pipe, and the top end opening of core pipe and cap head inner space, the circumferential interval of cap head offers multiple cap head air holes.
On described air distribution plate, after installation of core pipe, pouring fireproof material forms the cast bed of material, and the thickness of the cast bed of material is greater than the height of tube connector.
The middle part of described core pipe outer cylinder arranges annular boss, and the bottom margin seal welding of cap head is tubular into a single integrated structure with core on annular boss.
The middle part of described core pipe outer cylinder arranges annular boss, annular boss is arranged boss external screw thread, and the bottom of cap head offers the cap head internal thread coordinated with above-mentioned boss external screw thread.
The top end face of described cap head offers the polygonal grooves for coordinating with spanner.
The beneficial effects of the utility model are: cap head and core pipe affixed, can not come off during operation, core pipe and tube connector realize detachable installing structure by threaded engagement, can by cap head and the direct integral replacing of core pipe during replacing, and dismounting is very convenient; Thread fiting part between core pipe and tube connector is in below castable, can not be burnt out by high temperature, when needing to change blast cap, only castable need be removed, then change; Cap head and core pipe both can adopt the built-in structure of welded type also can adopt screw connected structure, used more flexible, were applicable to various working environments; Arrange polygonal grooves bolt easy to use core pipe and tube connector are tightened, further facilitate dismounting; Meanwhile, cap structure of the present utility model welding connecting tube on the basis of existing air distribution plate, does not need the structure of changing air distribution plate, reequips simple and convenient.In sum, the utility model have structure simple, realize convenient, be easy to dismounting and the reliable advantage of stabilized structure.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
With reference to accompanying drawing, this blast cap of circulating fluidized bed boiler structure comprises cap head 1, core pipe 2 and tube connector 3, the bottom vertical of tube connector 3 to be fixed on air distribution plate 4 and correspondingly with air distribution plate air holes 41 to be communicated with, can adopt the connected mode of welded type between tube connector 3 and air distribution plate 4, the bottom end opening of tube connector 3 is just to air distribution plate air holes 41.Tube connector internal thread is offered at the top of tube connector 3.The bottom of core pipe 2 offers the core pipe external screw thread with above-mentioned tube connector screw-internal thread fit, and cap head 1 spiral-lock that Open Side Down is at the top of core pipe 2, and the top end opening of core pipe 2 and cap head inner space, the circumferential interval of cap head 1 offers multiple cap head air holes 5.For the connection of core pipe 2 with cap head 1, both can directly be welded as a whole structure in a pre-installation, specifically as shown in the figure, the middle part of core pipe 2 outer cylinder arranges annular boss 7, the bottom margin seal welding of cap head 1 is on annular boss 7 and form integrative-structure with core pipe 2, this integrative-structure can integrated removal or installation, more convenient operation, increases work efficiency.Certainly, for blast cap or the low temperature boiler of low-temperature space, the structure that core pipe 2 and cap head 1 also can adopt screw thread to install, that is: the middle part of core pipe 2 outer cylinder arranges annular boss 7, annular boss 7 is arranged boss external screw thread, the bottom of cap head 1 offers the cap head internal thread coordinated with above-mentioned boss external screw thread.Because screw connection structure is easily by temperatures involved, therefore, in order to ensure fastness, core pipe 2 and cap head 1 preferably adopt the integral connecting structure of welded type.
With reference to accompanying drawing, on air distribution plate 4, after core pipe 2 is installed, pouring fireproof material forms the cast bed of material 6, and the thickness of the cast bed of material 6 is greater than the height of tube connector 3.The cast bed of material is used for heat insulation, and in the utility model, the thread fiting part between core pipe 2 and tube connector 3 is in below castable, can not be burnt out by high temperature, when needing to change blast cap, only castable need be removed, then change.
With reference to accompanying drawing, because the bottom of core pipe and the top of tube connector are for being spirally connected, therefore, the top end face of cap head 1 offers the polygonal grooves 8 for coordinating with spanner.Polygonal grooves 8 can adopt interior hexagonal or interior corner groove, utilizes hexagonal or corner spanner the bottom of core pipe can be tightened in the top of tube connector.
In sum, the utility model is not limited to above-mentioned detailed description of the invention.Those skilled in the art, under the prerequisite not departing from spirit and scope of the present utility model, can do some changes and modification.Protection domain of the present utility model should be as the criterion with claim of the present utility model.
Claims (5)
1. a blast cap of circulating fluidized bed boiler structure, comprise cap head (1) and core pipe (2), it is characterized in that this cap structure also comprises tube connector (3), it is upper and correspondingly with air distribution plate air holes (41) to be communicated with that the bottom vertical of this tube connector (3) is fixed in air distribution plate (4), and tube connector internal thread is offered at the top of tube connector (3); The bottom of described core pipe (2) offers the core pipe external screw thread with above-mentioned tube connector screw-internal thread fit, cap head (1) spiral-lock that Open Side Down is at the top of core pipe (2), the top end opening of core pipe (2) and cap head inner space, the circumferential interval of cap head (1) offers multiple cap head air holes (5).
2. blast cap of circulating fluidized bed boiler structure as claimed in claim 1, it is characterized in that on described air distribution plate (4), pouring fireproof material forms the cast bed of material (6) after core pipe (2) is installed, the thickness of the cast bed of material (6) is greater than the height of tube connector (3).
3. blast cap of circulating fluidized bed boiler structure as claimed in claim 1, it is characterized in that the middle part of described core pipe (2) outer cylinder arranges annular boss (7), the bottom margin seal welding of cap head (1) goes up at annular boss (7) and forms integrative-structure with core pipe (2).
4. blast cap of circulating fluidized bed boiler structure as claimed in claim 1, it is characterized in that the middle part of described core pipe (2) outer cylinder arranges annular boss (7), (7) arrange boss external screw thread to annular boss, and the bottom of cap head (1) offers the cap head internal thread coordinated with above-mentioned boss external screw thread.
5. the blast cap of circulating fluidized bed boiler structure according to any one of claim 1-4, the top end face that it is characterized in that described cap head (1) offers the polygonal grooves (8) for coordinating with spanner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520703638.1U CN204922963U (en) | 2015-09-14 | 2015-09-14 | Circulating fluidized bed boiler hood structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520703638.1U CN204922963U (en) | 2015-09-14 | 2015-09-14 | Circulating fluidized bed boiler hood structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922963U true CN204922963U (en) | 2015-12-30 |
Family
ID=54972086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520703638.1U Expired - Fee Related CN204922963U (en) | 2015-09-14 | 2015-09-14 | Circulating fluidized bed boiler hood structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922963U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424071A (en) * | 2017-08-31 | 2019-03-05 | 上海宝冶集团有限公司 | The connection method of blast cap and wall |
| CN109780538A (en) * | 2019-01-24 | 2019-05-21 | 青岛华晨伟业电力科技工程有限公司 | A kind of circulating fluidized bed combustion coal boiler strong wind cap assembly |
-
2015
- 2015-09-14 CN CN201520703638.1U patent/CN204922963U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424071A (en) * | 2017-08-31 | 2019-03-05 | 上海宝冶集团有限公司 | The connection method of blast cap and wall |
| CN109780538A (en) * | 2019-01-24 | 2019-05-21 | 青岛华晨伟业电力科技工程有限公司 | A kind of circulating fluidized bed combustion coal boiler strong wind cap assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Wu Jia Bao Xi Bao Cun Industrial Park in Huaiyin District of Ji'nan city of Shandong Province, No. 7 250000 Patentee after: Shandong Yongquan energy saving Polytron Technologies Inc Address before: Wu Jia Bao Xi Bao Cun Industrial Park in Huaiyin District of Ji'nan city of Shandong Province, No. 7 250000 Patentee before: JINAN YONGQUAN ENERGY-SAVING ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. |
|
| 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: 20151230 Termination date: 20190914 |