CN218565449U - Air preheater soot blowing standby steam source system - Google Patents
Air preheater soot blowing standby steam source system Download PDFInfo
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- CN218565449U CN218565449U CN202222915972.6U CN202222915972U CN218565449U CN 218565449 U CN218565449 U CN 218565449U CN 202222915972 U CN202222915972 U CN 202222915972U CN 218565449 U CN218565449 U CN 218565449U
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- soot blowing
- steam source
- air preheater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model relates to an air preheater blows reserve vapour source system of ash. At present, when two unit boilers in a thermal power plant are frequently shut down or run at a low load, the air preheater can not realize soot blowing under normal parameters in the starting and low-load running processes of any boiler. An air preheater soot blowing standby steam source system comprises: high pressure industry supplies female pipe of vapour (12), air preheater blows grey female pipe A (13) and air preheater blows grey female pipe B (14), high pressure industry supplies to draw forth on the female pipe of vapour all the way reserve soot blowing steam source electric heater export to A, B boiler blows grey steam source UNICOM pipeline connecting pipe (3), be connected with A between air preheater soot blowing female pipe A and the air preheater soot blowing female pipe B, B two boiler air preheater steam blows grey steam source UNICOM female way (1), reserve soot blowing steam source electric heater export to A, B boiler blows grey steam source UNICOM pipeline connecting pipe and A, B two boiler air preheater steam blows grey steam source UNICOM female way and is connected. The utility model discloses be applied to air preheater steam soot blowing system.
Description
The technical field is as follows:
the utility model relates to an air preheater blows reserve vapour source system of ash.
Background art:
in recent years, with the increasing new energy ratio of a power grid, the low-load operation and shutdown standby conditions of a thermal power unit caused by deep peak regulation, standby peak regulation, maintenance and the like are more and more frequent, the two 700MW boilers in a Texas power plant are frequently shut down or run at low load at the same time, and the soot blowing of an air preheater cannot be realized in the starting process of any boiler at this time.
The invention content is as follows:
the utility model aims at providing an air preheater blows reserve vapour source system of ash.
The above purpose is realized by the following technical scheme:
a kind of air preheater blows the spare vapour source system of soot blowing, it makes up and includes: the high-pressure industrial steam supply main pipe, the air preheater soot blowing main pipe A and the air preheater soot blowing main pipe B are characterized in that a standby soot blowing steam source electric heater outlet is led out from the high-pressure industrial steam supply main pipe to a boiler soot blowing steam source communicating pipe A and a boiler soot blowing steam source communicating pipe B, and a boiler air preheater steam soot blowing steam source communicating main channel A and a boiler air preheater steam soot blowing steam source communicating main channel B are connected between the air preheater soot blowing main pipe A and the air preheater soot blowing main pipe B: the standby soot blowing steam source electric heater outlet is connected with the boiler soot blowing steam source communicating main pipeline A and the boiler soot blowing steam source communicating main pipeline B;
the spare soot blowing steam source electric heater outlet is connected with the boiler soot blowing steam source communicating pipe connecting pipes of A and B, and is respectively connected with a spare soot blowing steam source electric heater rear pipeline manual door, a spare soot blowing steam source electric heater rear pipeline front movable door, a spare soot blowing steam source to electric heater steam supply manual main door and a spare soot blowing steam source to electric heater steam supply pipeline check door;
and the steam soot blowing steam source of the A and B boiler air pre-heaters is communicated with the main channel and is respectively connected with a manual steam supply door from the air pre-heater standby soot blowing steam source to the A boiler and a manual steam supply door from the air pre-heater standby soot blowing steam source to the A boiler.
The air preheater soot blowing standby steam source system is characterized in that the standby soot blowing steam source electric heater outlets to the boiler soot blowing steam source communicating pipelines of A and B are connected with a standby soot blowing steam source electric heater bypass pipeline through connecting pipes, and a standby soot blowing steam source electric heater bypass pipeline manual door is connected to the standby soot blowing steam source electric heater bypass pipeline.
And the connecting pipe from the outlet of the electric heater of the spare soot blowing steam source to the soot blowing steam source communicating pipes of the boilers A and B is a pipe with the diameter of phi 70 mm.
The utility model has the advantages that:
1. the utility model discloses at the former design air preheater steam of two 700MW boilers and blow the ash vapour source and get from the export of boiler reheater, consider that this boiler reheater parameter is low can't satisfy at unit start-up in-process and blow the ash requirement, blow ash the busipes at two boiler air preheaters and increase phi 70mm diameter intercommunication pipeline all the way, can supply vapour to this stove by adjacent boiler.
2. The utility model discloses supply the female pipe of vapour to draw forth the pipeline of phi 70mm all the way (reserve soot blowing steam source electric heater export to A, B boiler soot blowing steam source communicating pipe) and link to each other with the air preheater soot blowing communicating pipe of two boilers at the power plant high pressure industry, because the power plant high pressure industry supplies the female pipe of vapour to undertake jointly by whole factory #1- #6 unit and supplies vapour, consequently this way steam conduit continuous operation's reliability can be ensured completely, its steam pressure 2.8MPa, temperature 300 ℃, can satisfy the demand that boiler steam blown the ash during the unit starts basically.
3. The utility model discloses steam is supplied the vapour pipeline by whole factory high pressure industry and takes out, and through the preceding by-pass gate, electric heater, back by-pass gate and the air preheater soot blowing pipe connection of two boilers, can supply vapour to arbitrary platform boiler, and electric heater design has the bypass pipeline, when the heater trouble, can accomplish by its bypass and supply vapour work.
4. The utility model discloses the electric heater design promotes high pressure industry steam supply temperature to 350 ℃ by 300 ℃ to improve the superheat degree of steam. When the unit operates at low load, the reheat steam pressure of the unit may not meet the soot blowing requirement of the air preheater, and the unit can also be put into operation of the standby steam source to improve the soot blowing steam parameters of the air preheater. When the air preheater soot blowing steam source originally designed for the furnace has faults, such as the blockage of a manual valve, the faults of an electric valve and the like, the standby steam source can be also used as an emergency steam source.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
1. A, B two boiler air preheater steam blowing steam source UNICOM mother says, 2, the air preheater reserve soot blowing steam source to A boiler steam supply hand-operated gate, 3, reserve soot blowing steam source electric heater export to A, B boiler soot blowing steam source UNICOM pipeline connecting pipe, 4, reserve soot blowing steam source electric heater rear pipeline hand-operated gate, 5, reserve soot blowing steam source electric heater, 6, reserve soot blowing steam source electric heater rear pipeline front-operated gate, 7, reserve soot blowing steam source to electric heater steam supply hand-operated main gate, 8, reserve soot blowing steam source to electric heater steam supply pipeline check valve, 9,
A standby soot blowing steam source electric heater bypass pipeline manual door, a standby soot blowing steam source electric heater bypass pipeline 10, an air preheater standby soot blowing steam source to A boiler steam supply manual door, a high-pressure industrial steam supply main pipe 12, high-pressure industrial steam supply main pipes 13, air preheater soot blowing main pipes A and 14, air preheater soot blowing main pipes B and 15 and a reheater outlet header,
the specific implementation mode is as follows:
example 1:
an air preheater soot blowing standby steam source system comprises: the high-pressure industrial steam supply main pipe 12, the air preheater ash blowing main pipe A13 and the air preheater ash blowing main pipe B14, wherein a spare ash blowing steam source electric heater outlet is led out from the high-pressure industrial steam supply main pipe to a boiler ash blowing steam source communicating pipe connecting pipe 3A and a boiler ash blowing steam source communicating pipe B, and a boiler air preheater steam ash blowing steam source communicating main pipe 1A and a boiler air preheater steam ash blowing steam source communicating main pipe B are connected between the air preheater ash blowing main pipe A and the air preheater ash blowing main pipe B, and the high-pressure industrial steam supply main pipe is characterized in that: the standby soot blowing steam source electric heater outlet is connected with the boiler soot blowing steam source communicating pipelines of the A and B boilers through a communicating pipeline and is connected with the boiler soot blowing steam source communicating main pipelines of the A and B boiler air pre-heaters;
the spare soot blowing steam source electric heater outlet to the boiler soot blowing steam source communicating pipe connecting pipes of A and B are respectively connected with a spare soot blowing steam source electric heater rear pipeline manual door 4, a spare soot blowing steam source electric heater 5, a spare soot blowing steam source electric heater rear pipeline front movable door 6, a spare soot blowing steam source to electric heater steam supply manual main door 7 and a spare soot blowing steam source to electric heater steam supply pipeline check door 8,
and the steam blowing steam source communication main channel of the boiler air pre-heaters A and B is respectively connected with a standby air blowing steam source of the air pre-heaters A to the boiler steam supply manual door 2 and a standby air blowing steam source of the air pre-heaters A to the boiler steam supply manual door 11.
The air preheater soot blowing standby steam source system is characterized in that the standby soot blowing steam source electric heater outlets to the boiler soot blowing steam source communicating pipelines of A and B are connected with a standby soot blowing steam source electric heater bypass pipeline 10 through connecting pipes, and a standby soot blowing steam source electric heater bypass pipeline manual valve 9 is connected to the standby soot blowing steam source electric heater bypass pipeline.
Claims (3)
1. An air preheater soot blowing standby steam source system comprises: the high-pressure industrial steam supply main pipe, the air preheater soot blowing main pipe A and the air preheater soot blowing main pipe B are characterized in that a standby soot blowing steam source electric heater outlet is led out from the high-pressure industrial steam supply main pipe to a boiler soot blowing steam source communicating pipe A and a boiler soot blowing steam source communicating pipe B, and a boiler air preheater steam soot blowing steam source communicating main channel A and a boiler air preheater steam soot blowing steam source communicating main channel B are connected between the air preheater soot blowing main pipe A and the air preheater soot blowing main pipe B: the standby soot blowing steam source electric heater outlet is connected with the boiler soot blowing steam source communicating pipelines of the A and B boilers through a communicating pipeline and is connected with the boiler soot blowing steam source communicating main pipelines of the A and B boiler air pre-heaters;
the spare soot blowing steam source electric heater outlet is connected with the boiler soot blowing steam source communicating pipe connecting pipes of A and B, and is respectively connected with a spare soot blowing steam source electric heater rear pipeline manual door, a spare soot blowing steam source electric heater rear pipeline front movable door, a spare soot blowing steam source to electric heater steam supply manual main door and a spare soot blowing steam source to electric heater steam supply pipeline check door;
and the steam soot blowing steam source of the A and B boiler air pre-heaters is communicated with the main channel and is respectively connected with a manual steam supply door from the air pre-heater standby soot blowing steam source to the A boiler and a manual steam supply door from the air pre-heater standby soot blowing steam source to the A boiler.
2. The air preheater soot blowing standby steam source system as claimed in claim 1, wherein: and the standby soot blowing steam source electric heater bypass pipeline is connected with a standby soot blowing steam source electric heater bypass pipeline manual door.
3. The air preheater soot blowing standby steam source system as set forth in claim 2, wherein: and the connecting pipe from the outlet of the standby soot blowing steam source electric heater to the soot blowing steam source communicating pipes of the boilers A and B is a pipe with the diameter phi of 70 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222915972.6U CN218565449U (en) | 2022-11-03 | 2022-11-03 | Air preheater soot blowing standby steam source system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222915972.6U CN218565449U (en) | 2022-11-03 | 2022-11-03 | Air preheater soot blowing standby steam source system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218565449U true CN218565449U (en) | 2023-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222915972.6U Active CN218565449U (en) | 2022-11-03 | 2022-11-03 | Air preheater soot blowing standby steam source system |
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| Country | Link |
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| CN (1) | CN218565449U (en) |
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2022
- 2022-11-03 CN CN202222915972.6U patent/CN218565449U/en active Active
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