CN209558312U - A kind of blow pipe system of power plant boiler - Google Patents
A kind of blow pipe system of power plant boiler Download PDFInfo
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- CN209558312U CN209558312U CN201920220418.1U CN201920220418U CN209558312U CN 209558312 U CN209558312 U CN 209558312U CN 201920220418 U CN201920220418 U CN 201920220418U CN 209558312 U CN209558312 U CN 209558312U
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- exhauster
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Abstract
The utility model belongs to boiler blow piping systems technology field, more particularly to a kind of blow pipe system of power plant boiler, including high temperature reheater and steam turbine, the high temperature reheater is equipped with safety door exhaust pipe by reheated steam outlet and steam turbine connection, the reheated steam outlet；It further include stifled valve and gland steam exhauster, the stifled valve is arranged on reheated steam outlet, reheated steam outlet is blocked by stifled valve, barrier steam enters steam turbine, respectively with reheated steam outlet and safety door exhaust pipe connection, the steam in reheated steam outlet is discharged by gland steam exhauster and safety door exhaust pipe at the both ends of the gland steam exhauster.The utility model is particularly suitable for later boiler of going into operation, and when needing to carry out blowpipe, the system is simple and reliable, convenient and easy.
Description
Technical field
The utility model belongs to boiler blow piping systems technology field, and in particular to a kind of blow pipe system of power plant boiler.
Background technique
Common fired power generating unit is mainly by water-cooling wall, superheater, turbine bypass system, high side door, low-temperature reheater, height
Warm reheater composition.Boiler blow piping is to carry out steam blowing to jet chimney, is achieved the purpose that completely without dirty operation technique.At me
In state's electric power industry development, steam-line blowing is one of the important test run step before station boiler puts into operation.Just because of this, in steam turbine
The quality of steam for entering steam turbine is required in power generation, if the steam entered has dirt (such as iron rust, welding slag), can be damaged
The impeller of rotation, so in order to guarantee the cleaning of steam it is necessary to jet chimney progress pressure purge.
The step of steam-line blowing is the indispensable link that boiler puts into operation, and each power station will carry out.But power station put into operation with
Afterwards, if boiler heating surface has impurity, there is oxide skin, there is welding slag, how this is handled, it is common practice that, it will in unit starting
The impurity of boiler is carried by steam to condenser, and then manual cleaning condenser, time-consuming and laborious, consumption fund.
It according to traditional blowpipe mode, needs largely to connect temporary pipeline, it is also necessary to which installation, which is faced, blows electrically operated gate.Traditional blows
Pipe mode is all to be suitable for carrying out blowpipe when new-built unit is gone into operation, but for after going into operation and running the boiler of many years and uncomfortable
With put into operation higher cost.
Utility model content
In view of the above technical problems, the utility model provides a kind of blow pipe system of power plant boiler, the blow pipe system
Suitable for the boiler blow piping of operation many years after going into operation, cost is reduced.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows:
A kind of blow pipe system of power plant boiler, including high temperature reheater and steam turbine, the high temperature reheater is by again
Hot steam outlet and steam turbine connection, the reheated steam outlet are equipped with safety door exhaust pipe；It further include stifled valve and row
Steam pipe, the stifled valve are arranged on reheated steam outlet, are blocked by stifled valve to reheated steam outlet, obstruct steam
Into steam turbine, respectively with reheated steam outlet and safety door exhaust pipe connection, reheated steam goes out at the both ends of the gland steam exhauster
Steam in mouth pipe is discharged by gland steam exhauster and safety door exhaust pipe.
The both ends of the gland steam exhauster pass through flange and couple with reheated steam outlet and safety door exhaust pipe.
The gland steam exhauster is equipped with lifting lug.
The gland steam exhauster is equipped with curved support plate, the curved support plate and reheated steam outlet contact connection.
Further include curved roof, the curved roof detachably couples with reheated steam outlet, the curved roof with
Gland steam exhauster contact connection.
The curved roof is coupled by clip with reheated steam outlet.
The utility model compared with prior art, has the beneficial effect that
The utility model is particularly suitable for later boiler of going into operation, and the blow pipe system is simple and reliable, convenient and easy.By by pot
Furnace and steam turbine are thoroughly isolated, and reheated steam outlet is easily transformed, that is, are constituted one and energy-efficient blown
Guard system.Installation of the whole system without a large amount of interim pipelines, time saving and energy saving investment-saving.
Detailed description of the invention
Fig. 1 is the principles of the present invention figure；
Fig. 2 is the planar structure schematic diagram of the utility model；
Fig. 3 is the stereochemical structure signal of the utility model；
Fig. 4 is the structural schematic diagram of the utility model curved support plate；
Fig. 5 is the structural schematic diagram of the utility model curved roof；
Wherein: 1 is reheated steam outlet, and 2 be safety door exhaust pipe, and 3 be stifled valve, and 4 be gland steam exhauster, and 5 be flange, and 6 are
Curved support plate, 7 be curved roof, and 8 be clip, and 9 be lifting lug.
Specific embodiment
As shown in Fig. 1 to 2, a kind of blow pipe system of power plant boiler, high temperature reheater by reheated steam outlet 1 with
Steam turbine connection, reheated steam outlet 1 are equipped with safety door exhaust pipe 2；Further include stifled valve 3 and gland steam exhauster 4, blocks up valve 3 and be arranged
On reheated steam outlet 1, reheated steam outlet 1 is blocked by stifled valve 3, barrier steam enters steam turbine, arranges
Respectively with 2 connection of reheated steam outlet 1 and safety door exhaust pipe, the steam in reheated steam outlet 1 is logical at the both ends of steam pipe 4
It crosses gland steam exhauster 4 and safety door exhaust pipe 2 is discharged.
Usual steam blocks up valve 3 and is made of plug and upper cover, and upper cover is attached with ring flange；In the present solution, not installing
Closure plate upper cover, it is only necessary to installed plug.By one end of gland steam exhauster 4 installation upper cover open-mouth, the bore of gland steam exhauster 4 with it is upper
The bore of lid open-mouth is identical；The other end of gland steam exhauster 4 is fixed on the safety door exhaust pipe 2 of reheated steam outlet 1, mesh
, utilize the muffler of hot arc reheater safety door.
In use, just carrying out boiler startup igniting after the completion of the connection of the system of inspection according to program, normally being risen after ignition of the boiler
Temperature rise pressure, the high other adjustment door of steam turbine is closed state at this time.
When main vapour pressure of boiler reaches certain value, by quickly opening the high other adjustment door of steam turbine, the main vapour of abrupt release
Pressure, the steam flow rate in heating surface tubes in boilers will rise rapidly at this moment, using swiftly flowing steam by boiler heating surface
Interior impurity carries away.
After blowpipe, the closure plate (and installing upper cover) of gland steam exhauster 4, stifled valve 3 is removed；Block safety door exhaust pipe 2 with
Normal system is restored in 4 connection position of gland steam exhauster.
Further, it is possible to realize 4 both ends of gland steam exhauster and reheated steam outlet 1 and safety door exhaust pipe using various structures
2 connection, it is preferred to use the mode that flange 5 connects is respectively equipped with flange 5 at the both ends of gland steam exhauster 4, sets at safety door exhaust pipe 2
There is corresponding flange seat；Remove exhaust pipe 4 after, can by the flange seat at safety door exhaust pipe 2 install blind flange into
Row blocks.
Further, in order to facilitate the installation of, lifting lug 9 is equipped on gland steam exhauster 4.
Further, fixing curved support plate 6 on gland steam exhauster 4 as shown in Fig. 3 to 5, curved support plate 6 goes out with reheated steam
Mouth 1 contact connection of pipe.When installation, curved support plate 6 is placed on reheated steam outlet 1, plays the work of support gland steam exhauster 4
With to facilitate the installation at 4 both ends of gland steam exhauster.
Other than curved support plate 6 can be used to play a supporting role, it can also be replaced by setting curved roof 7.Arc
Top plate 7 detachably couples with reheated steam outlet 1, curved roof 7 and 4 contact connection of gland steam exhauster.When installation, first by arched top
Plate 7 couples with reheated steam outlet 1, and gland steam exhauster 4 is placed on curved roof 7, can also play a supporting role.
Further, curved roof 7 realizes detachable couple with reheated steam outlet 1 by clip 8.
Claims (6)
1. a kind of blow pipe system of power plant boiler, including high temperature reheater and steam turbine, the high temperature reheater pass through reheating
Steam outlet pipe (1) and steam turbine connection, the reheated steam outlet (1) are equipped with safety door exhaust pipe (2)；Its feature exists
In: it further include stifled valve (3) and gland steam exhauster (4), the stifled valve (3) is arranged on reheated steam outlet (1), by blocking up valve (3)
Reheated steam outlet (1) is blocked, barrier steam enters steam turbine, the both ends of the gland steam exhauster (4) respectively with reheating
Steam outlet pipe (1) and safety door exhaust pipe (2) connection, the steam in reheated steam outlet (1) by gland steam exhauster (4) and are pacified
Air cock exhaust pipe (2) discharge.
2. a kind of blow pipe system of power plant boiler according to claim 1, it is characterised in that: the gland steam exhauster (4)
Both ends pass through flange (5) and couple with reheated steam outlet (1) and safety door exhaust pipe (2).
3. a kind of blow pipe system of power plant boiler according to claim 1, it is characterised in that: on the gland steam exhauster (4)
Equipped with lifting lug (9).
4. a kind of blow pipe system of power plant boiler according to claim 1, it is characterised in that: on the gland steam exhauster (4)
Equipped with curved support plate (6), the curved support plate (6) and reheated steam outlet (1) contact connection.
5. a kind of blow pipe system of power plant boiler according to claim 1, it is characterised in that: further include curved roof
(7), the curved roof (7) detachably couples with reheated steam outlet (1), and the curved roof (7) connects with gland steam exhauster (4)
Touching connection.
6. a kind of blow pipe system of power plant boiler according to claim 5, it is characterised in that: the curved roof (7)
Coupled by clip (8) with reheated steam outlet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220418.1U CN209558312U (en) | 2019-02-21 | 2019-02-21 | A kind of blow pipe system of power plant boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220418.1U CN209558312U (en) | 2019-02-21 | 2019-02-21 | A kind of blow pipe system of power plant boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209558312U true CN209558312U (en) | 2019-10-29 |
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ID=68309464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920220418.1U Active CN209558312U (en) | 2019-02-21 | 2019-02-21 | A kind of blow pipe system of power plant boiler |
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| Country | Link |
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| CN (1) | CN209558312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986067A (en) * | 2019-12-06 | 2020-04-10 | 上海电气燃气轮机有限公司 | Blow pipe system for combined cycle power plant boiler and operation method thereof |
-
2019
- 2019-02-21 CN CN201920220418.1U patent/CN209558312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986067A (en) * | 2019-12-06 | 2020-04-10 | 上海电气燃气轮机有限公司 | Blow pipe system for combined cycle power plant boiler and operation method thereof |
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