CN201764490U - Inner sleeve apparatus for attemperator - Google Patents
Inner sleeve apparatus for attemperator Download PDFInfo
- Publication number
- CN201764490U CN201764490U CN2010205147832U CN201020514783U CN201764490U CN 201764490 U CN201764490 U CN 201764490U CN 2010205147832 U CN2010205147832 U CN 2010205147832U CN 201020514783 U CN201020514783 U CN 201020514783U CN 201764490 U CN201764490 U CN 201764490U
- Authority
- CN
- China
- Prior art keywords
- attemperator
- cylindrical shell
- inner sleeve
- neck bush
- plane support
- 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 - Lifetime
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Abstract
The utility model discloses an inner sleeve apparatus for attemperator so disposed that the inner sleeve apparatus comprises an inner sleeve inside a cylindrical shell which has a structure defining a front inclined plane support disposed on the external periphery at one end of the inner sleeve, an inclined plane support being disposed on the external periphery at the other end, the inner wall of the cylindrical shell being provided with retaining blocks and sliding blocks, the retaining block engaging with the front inclined plane support, the sliding blocks engaging with a back inclined plane support. The utility model has the advantages of convenient installation, maintenance and exchanging of inner sleeve, safe cylindrical shell of attemperator and no easy leakage. The inner sleeve apparatus can be mounted after heat treatment on the cylindrical shell of the attemperator, and can be positioned accurately and allows no easy deformation. The structure of the front incline plane support and the back inclined plane support allows screw inner sleeve depending on the actual internal diameter of the cylindrical shell of attemperator, which can adapt to different wall thickness of the cylindrical shell of attemperator caused by purchase error.
Description
Technical field
The utility model relates to a kind of attemperator neck bush device, belongs to the boiler desuperheater component technology field in power plant.
Background technology
Attemperator is to be used for the important device of steam regulation boiler steam temperature.In the thermal power plant,, can make parts damages such as boiler turbine or cause a serious accident if there is not attemperator just the vapor (steam) temperature of boiler export cannot be controlled in the rated range.The adjusting of vapor (steam) temperature can be divided into two big classes: fume side is regulated and steam side is regulated.Direct-contact desuperheater is the main means of steam side steam regulation temperature.Direct-contact desuperheater all is provided with the neck bush of thin-walled, its objective is to avoid atomizing the thermal shock of incomplete desuperheat water droplet to heavy wall header or connecting pipe inwall.When thicker desuperheating water dropped onto on the neck bush, because neck bush accumulation of heat inertia is little, just the temperature difference that can be less gasified water droplet rapidly, and the thermal stress that produces on neck bush is little.
Shown in Figure 1A to Fig. 1 C, be neck bush structural representation commonly used in the direct-contact desuperheater, neck bush 2 is connected with cylindrical shell 1 with set bolt 3 near the nozzle place, and withstand with carrying bolt 4 rear end, set bolt and carrying bolt all need perforates on cylindrical shell 1, and with 1 welding of attemperator cylindrical shell.The shortcoming of said structure is: perforate too much makes weakened on the cylindrical shell, and bolt and stack shell welding quality require high, welds bad easy generation and leaks the manufacturing process complexity.Because traditional direct-contact desuperheater needs carry out bulk heat treatmet after neck bush device and stack shell assembling, usually causes very easily after the heat treatment that neck bush is out of shape, and carrying bolt can not withstand defectives such as neck bush because of thermal deformation, influences the assembly quality of direct-contact desuperheater.
The utility model content
That the purpose of this utility model provides is easy for installation, make simple, well behaved direct-contact desuperheater neck bush device.
In order to achieve the above object, the technical solution of the utility model has provided a kind of attemperator neck bush device, comprise the neck bush of being located in the cylindrical shell, it is characterized in that, on the outer circumference surface of neck bush one end, be provided with the front bevel bearing, on the outer circumference surface of the other end, be provided with the inclined-plane bearing, on the inwall of cylindrical shell, be provided with fixed block and slide block, fixed block and front bevel bearing cooperate, and slide block and back bevel bearing cooperate.
Further, the side at described fixed block and slide block is respectively equipped with block.
Bottom at described fixed block is provided with groove.
Fitting surface between described front bevel bearing and the described fixed block, between described back bevel bearing and the described slide block is the inclined-plane.
The utility model one side adopts the fixed block stationary bushing, opposite side adopts slider support, neck bush can freedom expand backward when moving like this, and has avoided the intensity that the many places perforate causes on cylindrical shell to weaken and the danger of leakage easily, and it is convenient to install and change.
The utility model has the advantages that: it is convenient that the neck bush device is installed, maintenance is changed; The attemperator cylindrical shell is safer, is difficult for leaking; The neck bush device can be joined at the laggard luggage of attemperator cylindrical shell heat treatment, and the neck bush device can accurately be located and be not yielding; Because the architectural feature of front bevel bearing and back bevel bearing can screw the neck bush device according to the actual inner diameter of attemperator cylindrical shell, can adapt to the buying error of attemperator cylindrical shell wall thickness.
Description of drawings
Figure 1A is former attemperator neck bush apparatus structure schematic diagram;
Figure 1B is that the A-A of Figure 1A is to view;
Fig. 1 C is that the B-B of Figure 1A is to view;
A kind of attemperator neck bush apparatus structure schematic diagram that Fig. 2 A provides for the utility model;
Fig. 2 B is that the A-A of Fig. 2 A is to view;
Fig. 2 C is that the B-B of Fig. 2 A is to view;
Fig. 3 fixed block assembling detail drawing;
Fig. 4 slide block assembling detail drawing;
The schematic diagram of Fig. 5 fixed block;
The schematic diagram of Fig. 6 slide block;
The schematic diagram of Fig. 7 front bevel bearing;
Fig. 8 is the schematic diagram of back bevel bearing.
The specific embodiment
Specify the utility model below in conjunction with embodiment.
Embodiment
Shown in Fig. 2 A to Fig. 2 C, a kind of attemperator neck bush device that provides for the utility model, comprise the neck bush of being located in the cylindrical shell 15, on the outer circumference surface of neck bush 5 one ends, be provided with front bevel bearing 6, on the outer circumference surface of the other end, be provided with inclined-plane bearing 10, be provided with fixed block 7 and slide block 9 on the inwall of cylindrical shell 1, fixed block 7 and front bevel bearing 6 cooperate, and slide block 9 and back bevel bearing 10 cooperate.
Do not weld between fixed block 7 and front bevel bearing 6, slide block 9 and the back bevel bearing 10, neck bush 5 stretches in the cylindrical shell 1 during assembling, in a certain direction front bevel bearing 6 is screwed in fixed block 7 then, make it to closely cooperate, no longer rock with hand neck bush once 5, on neck bush 5, install block 8 at last additional, in case when operation neck bush 5 loosening, block 8 is not connected with cylindrical shell 1.
The concrete assembling of fixed block 7 and slide block 9 respectively as shown in Figures 3 and 4, fitting surface is that the benefit on inclined-plane is also can reach and closely cooperate by rotating neck bush 5 when the gap between attemperator cylindrical shell 1 and the neck bush 5 and design load have deviation.Front bevel bearing 6 and back bevel bearing 10 can be made of steel plate, and manufacturing is installed all very convenient, and thermal stress is little, can not cause damage to lining.
Fixed block 7 as shown in Figure 5, slide block 9 as shown in Figure 6, front bevel bearing 6 as shown in Figure 7, back bevel bearing 10 is as shown in Figure 8.Fixed block 7 bottoms are fluted, and the size of groove matches with front bevel bearing 6, play fixation.Slide block 9 bottom surfaces are smooth, after assembling with back bevel bearing 10, can avoid neck bush 5 vibrations, can slide relatively again, guarantee that neck bush 5 one ends can free wxpansion.During maintenance,, just can easily from cylindrical shell 1, take out neck bush 5, can not cause damage cylindrical shell 1 as long as block 8 is sliced off.
Claims (4)
1. attemperator neck bush device, comprise the neck bush of being located in the cylindrical shell (1) (5), it is characterized in that, on the outer circumference surface of neck bush (5) one ends, be provided with front bevel bearing (6), on the outer circumference surface of the other end, be provided with inclined-plane bearing (10), be provided with fixed block (7) and slide block (9) on the inwall of cylindrical shell (1), fixed block (7) and front bevel bearing (6) cooperate, and slide block (9) and back bevel bearing (10) cooperate.
2. a kind of attemperator neck bush device as claimed in claim 1 is characterized in that, is respectively equipped with block (8) at the side of described fixed block (7) and slide block (9).
3. a kind of attemperator neck bush device as claimed in claim 1 is characterized in that, is provided with groove in the bottom of described fixed block (7).
4. a kind of attemperator neck bush device as claimed in claim 1 is characterized in that, the fitting surface between described front bevel bearing (6) and the described fixed block (7), between described back bevel bearing (10) and the described slide block (9) is the inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205147832U CN201764490U (en) | 2010-09-02 | 2010-09-02 | Inner sleeve apparatus for attemperator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205147832U CN201764490U (en) | 2010-09-02 | 2010-09-02 | Inner sleeve apparatus for attemperator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764490U true CN201764490U (en) | 2011-03-16 |
Family
ID=43717098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205147832U Expired - Lifetime CN201764490U (en) | 2010-09-02 | 2010-09-02 | Inner sleeve apparatus for attemperator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764490U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506414A (en) * | 2011-11-02 | 2012-06-20 | 哈尔滨锅炉厂有限责任公司 | Temperature reducer of superheater of boiler of 600MW and temperature reducing method |
| CN102588947A (en) * | 2012-02-29 | 2012-07-18 | 哈尔滨锅炉厂有限责任公司 | Temperature reducer of 350MW tangential firing supercritical boiler reheater and temperature reducing method of temperature reducer |
| CN102818253A (en) * | 2012-06-15 | 2012-12-12 | 南京福昌环保有限公司 | Water-spraying type cooling device of boiler super-heater |
| CN104566335A (en) * | 2014-12-28 | 2015-04-29 | 哈尔滨锅炉厂有限责任公司 | Zero-level super-heater desuperheater and desuperheating method |
| CN110345467A (en) * | 2019-07-31 | 2019-10-18 | 上海锅炉厂有限公司 | A kind of desuperheater internal cover drum supporting device and installation method |
-
2010
- 2010-09-02 CN CN2010205147832U patent/CN201764490U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506414A (en) * | 2011-11-02 | 2012-06-20 | 哈尔滨锅炉厂有限责任公司 | Temperature reducer of superheater of boiler of 600MW and temperature reducing method |
| CN102506414B (en) * | 2011-11-02 | 2015-11-04 | 哈尔滨锅炉厂有限责任公司 | 600MW boiler superheater attemperator and desuperheat method |
| CN102588947A (en) * | 2012-02-29 | 2012-07-18 | 哈尔滨锅炉厂有限责任公司 | Temperature reducer of 350MW tangential firing supercritical boiler reheater and temperature reducing method of temperature reducer |
| CN102588947B (en) * | 2012-02-29 | 2016-02-10 | 哈尔滨锅炉厂有限责任公司 | 350MW tangential firing super critical boiler reheater and desuperheat method |
| CN102818253A (en) * | 2012-06-15 | 2012-12-12 | 南京福昌环保有限公司 | Water-spraying type cooling device of boiler super-heater |
| CN104566335A (en) * | 2014-12-28 | 2015-04-29 | 哈尔滨锅炉厂有限责任公司 | Zero-level super-heater desuperheater and desuperheating method |
| CN110345467A (en) * | 2019-07-31 | 2019-10-18 | 上海锅炉厂有限公司 | A kind of desuperheater internal cover drum supporting device and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |