CN204006044U - Station boiler is set up bypass one-phase step-down blow tube construction - Google Patents
Station boiler is set up bypass one-phase step-down blow tube construction Download PDFInfo
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- CN204006044U CN204006044U CN201420409967.0U CN201420409967U CN204006044U CN 204006044 U CN204006044 U CN 204006044U CN 201420409967 U CN201420409967 U CN 201420409967U CN 204006044 U CN204006044 U CN 204006044U
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- reheater
- blow
- bypass
- superheater
- door
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Abstract
The utility model discloses a kind of station boiler and sets up bypass one-phase step-down blow tube construction, comprising that superheater, reheater, adjustment doors and two face blows door, wherein, superheater outlet is provided with two-way pipeline, one road device for cleaning pipeline is crossed first and is faced and blow a connection reheater, and another road device for cleaning pipeline is crossed second and faced to blow and connect an adjustment doors, and the outlet conduit of reheater is connected exhaust apparatus with the output channel of adjustment doors, reheater entrance is provided with granulating device, and first faces and blow door and second and face to blow and be parallel with bypass door.The utility model is carry out research and innovation and propose for the blowpipe problem of station boiler, set up one-level bypass in parallel, also the steam that is superheater outlet is divided into two-way, one tunnel enters reheater, one tunnel enters bypass, so just be equivalent to reduce the resistance of reheater pipeline section, thereby can have improved the blowpipe coefficient of superheater.
Description
Technical field
The utility model relates to station boiler and sets up bypass one-phase step-down blow tube construction.
Background technology
The blowpipe work of Utility Boiler Superheater, reheater and steam pipe system thereof is the important procedure before new-built unit puts into operation, its objective is in order to remove manufacturing, transport, keeping, stayed in installation process, various foreign material in reheater system and jet chimney (for example: sand grains, stone, revolve bits, iron scale etc.), prevent mistake in unit operation, reheater bursting and the damage of steam turbine flow passage component, improve security and the economy of unit, and improve the steam quality of run duration.
The mode of steam-line blowing is generally divided into two kinds of one-phase blowpipe and two-stage blowpipes, and blowpipe method has two kinds of voltage stabilizing blowpipe and step-down blowpipes.Above-mentioned blowpipe methods are all often to adopt in practice.In the time adopting one-phase step-down blowpipe, due to the limitation of equipment itself and temporary system, and the reason such as the control of operational factor, often occur that superheater blowpipe coefficient is on the low side, and the higher phenomenon of reheater blowpipe coefficient causes superheater blowpipe effect undesirable.If further improve blowpipe pressure, although can improve superheater blowpipe coefficient, very easily cause and face the problems such as badge is puckery of blowing.Therefore the blowpipe coefficient of balance superheater and reheater how is the problem that needs solve.
Utility model content
The utility model is in order to address the above problem, propose station boiler and set up bypass one-phase step-down blow tube construction, superheater is exported to temporary pipeline and be divided into two-way, door is blown to reheater through granulating device with facing in one tunnel, another road is connected an adjustment doors through granulating device with facing to blow, and two-way outlet pipeline reconsolidates the interim pipeline in Wei Yi road to exhaust apparatus.
To achieve these goals, the utility model adopts following technical scheme:
A kind of station boiler is set up bypass one-phase step-down blow tube construction, comprising that superheater, reheater, adjustment doors and two face blows door, wherein, superheater outlet is provided with two-way pipeline, one road device for cleaning pipeline is crossed first and is faced and blow a connection reheater, and another road device for cleaning pipeline is crossed second and faced to blow and connect an adjustment doors, and the outlet conduit of reheater is connected exhaust apparatus with the output channel of adjustment doors, reheater entrance is provided with granulating device, and first faces and blow door and second and face to blow and be parallel with bypass door.
Operation principle of the present utility model is: set up one-level bypass in parallel, also the steam that is superheater outlet is divided into two-way, and a road enters reheater, and a road enters bypass, so just be equivalent to reduce the resistance of reheater pipeline section, thereby can have improved the blowpipe coefficient of superheater.
Described first faces and blows door and second and face and blow door and open in the time of blowpipe simultaneously, then by bypass adjustment doors adjusting reject steam flow, the blowpipe coefficient of control superheater and reheater.
The beneficial effects of the utility model are: be conducive to improve superheater blowpipe coefficient, adopt and set up one-level bypass in parallel, superheater outlet is divided into two-way, and downstream passage section increases, and is conducive to improve superheater blowpipe coefficient.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is conventional one-phase step-down blow tube construction schematic diagram.
Wherein, 1, superheater; 2, first faces and blows door; 3, reheater; 4, adjustment doors; 5, exhaust apparatus; 6, bypass door; 7, second faces and blows door.
Detailed description of the invention:
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As shown in Figure 1, a kind of station boiler is set up bypass one-phase step-down blow tube construction, comprising that superheater 1, reheater 3, adjustment doors 4 and two face blows door 2, wherein, superheater 1 is provided with two-way pipeline, a road device for cleaning pipeline cross first face blow door 2 connect reheaters 3, another road device for cleaning pipeline cross second face blow door 7 connect adjustment doors 4, the outlet conduit of reheater 3 is connected exhaust apparatus 5 with the output channel of adjustment doors 4, and reheater entrance is provided with granulating device, faces to blow door and be parallel with bypass door 6.
As shown in Figure 2, if adopt conventional one-phase step-down blowpipe, superheater rate of discharge is limited by reheater circulation area, and blowpipe coefficient is on the low side, and blowpipe effect is poor.For this situation, one-level bypass in parallel is set up in our suggestion, is also that the steam of superheater outlet is divided into two-way, one tunnel enters reheater, one tunnel enters bypass, has so just been equivalent to reduce the resistance of reheater pipeline section, thereby can improve the blowpipe coefficient of superheater.
In concrete blowpipe process, can first close two and face and blow door, standard-sized sheet bypass adjustment doors, in the time that boiler pressure rises to blowpipe pressure, two of standard-sized sheets face and blow door, regulate bypass flow by adjusting bypass adjustment doors aperture, control superheater and reheater blowpipe coefficient.After blowpipe, can substantially determine the reasonable aperture of bypass adjustment doors through starting several times, at this moment can fix bypass adjustment doors aperture, only by two carrying out that face the switching of blowing door and ensure blowpipe.
This blowpipe mode advantage is: can adopt conventional blowpipe pressure, be conducive to improve superheater blowpipe coefficient, improve blowpipe effect.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendments that creative work can make or distortion still in protection domain of the present utility model.
Claims (2)
1. a station boiler is set up bypass one-phase step-down blow tube construction, it is characterized in that: comprising that superheater, reheater, adjustment doors and two face blows door, wherein, superheater outlet is provided with two-way pipeline, one road device for cleaning pipeline is crossed first and is faced and blow a connection reheater, and another road device for cleaning pipeline is crossed second and faced to blow and connect an adjustment doors, and the outlet conduit of reheater is connected exhaust apparatus with the output channel of adjustment doors, reheater entrance is provided with granulating device, and first faces and blow door and second and face to blow and be parallel with bypass door.
2. a kind of station boiler as claimed in claim 1 is set up bypass one-phase step-down blow tube construction, it is characterized in that: described first faces and blow door and second and face to blow and in the time of blowpipe, open simultaneously, regulate reject steam flow by bypass adjustment doors, control the blowpipe coefficient of superheater and reheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409967.0U CN204006044U (en) | 2014-07-23 | 2014-07-23 | Station boiler is set up bypass one-phase step-down blow tube construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409967.0U CN204006044U (en) | 2014-07-23 | 2014-07-23 | Station boiler is set up bypass one-phase step-down blow tube construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204006044U true CN204006044U (en) | 2014-12-10 |
Family
ID=52046041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420409967.0U Expired - Fee Related CN204006044U (en) | 2014-07-23 | 2014-07-23 | Station boiler is set up bypass one-phase step-down blow tube construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204006044U (en) |
-
2014
- 2014-07-23 CN CN201420409967.0U patent/CN204006044U/en not_active Expired - Fee Related
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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: 20141210 Termination date: 20200723 |