CN211526414U - Excessive pressure head utilization system of air feeder - Google Patents
Excessive pressure head utilization system of air feeder Download PDFInfo
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- CN211526414U CN211526414U CN201922042163.7U CN201922042163U CN211526414U CN 211526414 U CN211526414 U CN 211526414U CN 201922042163 U CN201922042163 U CN 201922042163U CN 211526414 U CN211526414 U CN 211526414U
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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 a blower excess pressure head utilization system, wherein one side of the blower excess pressure head utilization system comprises a primary air pipeline and a secondary air pipeline; a pressure head adjusting pipeline of the air feeder is connected between the unilateral primary air pipeline and the secondary air pipeline, and two ends of the pressure head adjusting pipeline of the air feeder are respectively connected with the outlet end of a primary air suction port of the primary air blower and the outlet end of an electric door of an outlet of the air feeder; the blower pressure head adjusting pipeline is sequentially provided with a blower outlet to a primary air inlet electric door, a blower outlet to a primary air inlet electric adjusting door and a blower outlet to a primary air inlet flowmeter from a secondary air pipeline to a primary air pipeline. The utility model discloses utilize the surplus amount of wind step of forced draught blower, it is big to have solved forced draught blower allowance, and the embarrassment of operation in low efficiency district for a long time can satisfy the requirement that the once amount of wind of burning inferior coal accounts for the increase simultaneously.
Description
Technical Field
The utility model belongs to the technical field of thermal power, especially, relate to an excessive pressure head of forced draught blower utilizes system.
Background
The blower is one of the important production facilities of the power plant. The air blower sends air into the air preheater to be heated, and then the air is used as secondary air to support combustion. In actual production, the air volume should be adjusted in time according to the load size to ensure the air volume required when the pulverized coal is completely combusted. The efficiency of the fan is very high when the fan runs under the designed working condition and nearby, but the air quantity of the fan is too large or too small due to improper type selection or abnormal installation and the like, so that the fan cannot adapt to the field requirement. The air quantity is an important control factor in an air supply system, and the improper air quantity of the air supply machine not only influences the pressure of a hearth, but also causes the smoke discharge loss in a furnace to be increased, so that the efficiency of the boiler is reduced.
When the air feeder is designed and selected, if the allowance is large, the air feeder can operate in a low-efficiency area for a long time, and a large amount of electric energy can be wasted; under the conditions that coal quality of a power plant is worse and moisture content is higher and lower, primary air ratio has to be increased to achieve drying output of inferior coal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an excessive pressure head of forced draught blower utilizes system to solve above-mentioned technical problem.
The utility model provides a system for utilizing excess pressure head of a blower, wherein one side of the system comprises a primary air pipeline and a secondary air pipeline;
the primary air pipeline comprises a primary fan exhaust inlet, a primary fan silencer, a primary fan outlet electric door, an air preheater and a hot primary air outlet electric door which are connected in sequence;
the secondary air pipeline comprises an air feeder air suction opening, an air feeder silencer, an air feeder outlet electric door, an air preheater and a hot secondary air outlet electric door which are connected in sequence;
the outlet end of the electric door at the outlet of the blower of the secondary air pipeline is connected with the outlet end of the electric door at the outlet of the blower of the secondary air pipeline on the opposite side through a secondary air electric connecting air door;
a pressure head adjusting pipeline of the air feeder is connected between the unilateral primary air pipeline and the secondary air pipeline, and two ends of the pressure head adjusting pipeline of the air feeder are respectively connected with the outlet end of a primary air suction port of the primary air blower and the outlet end of an electric door of an outlet of the air feeder;
the blower pressure head adjusting pipeline is sequentially provided with a blower outlet to a primary air inlet electric door, a blower outlet to a primary air inlet electric adjusting door and a blower outlet to a primary air inlet flowmeter from a secondary air pipeline to a primary air pipeline.
By means of the scheme, the excess air quantity of the air feeder is utilized in a gradient mode through the excess pressure head utilization system of the air feeder, the problem that the air feeder is large in allowance and runs in a low-efficiency area for a long time is solved, and meanwhile the requirement for increasing the proportion of the primary air quantity of the poor-quality coal can be met.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of an excess head pressure utilization system for a blower according to the present invention.
Reference numbers in the figures:
1-an air suction inlet of a primary fan; 2-primary fan silencer; 3-a primary air fan; 4-an electric door at the outlet of the primary air fan; 5-an air preheater; 6-hot primary air outlet electric door; 7-hot secondary air outlet electric door; 8, an electric door from the outlet of the air feeder to the inlet of the primary air fan; 9-an electric adjusting door from an outlet of the air feeder to an inlet of the primary air fan; 10-a flow meter from an outlet of a blower to an inlet of a primary air fan; 11-electric door of blower outlet; 12-a blower; 13-blower muffler; 14-air suction inlet of air blower; 15-secondary wind power-driven communication air door.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1, the present embodiment provides an excess head utilization system for a blower, which includes a primary air pipeline and a secondary air pipeline on one side;
the primary air pipeline comprises a primary air fan air suction opening 1, a primary air fan silencer 2, a primary air fan 3, a primary air fan outlet electric door 4, an air preheater 5 and a hot primary air outlet electric door 6 which are connected in sequence;
the secondary air pipeline comprises a blower air suction opening 14, a blower silencer 13, a blower 12, a blower outlet electric door 11, an air preheater 5 and a hot secondary air outlet electric door 7 which are connected in sequence;
the outlet end of a blower outlet electric door 11 of the secondary air pipeline is connected with the outlet end of a blower outlet electric door of the opposite secondary air pipeline through a secondary air electric connecting air door 15;
a pressure head adjusting pipeline of the air feeder is connected between the unilateral primary air pipeline and the secondary air pipeline, and two ends of the pressure head adjusting pipeline of the air feeder are respectively connected with the outlet end of a primary air suction port 1 and the outlet end of an electric door 11 of an outlet of the air feeder;
the blower pressure head adjusting pipeline is sequentially provided with a blower outlet to a primary blower inlet electric door 8, a blower outlet to a primary blower inlet electric adjusting door 9 and a blower outlet to a primary blower inlet flowmeter 10 from a secondary air pipeline to a primary air pipeline.
When the device is operated, the electric door 8 from the outlet of the blower to the inlet of the primary blower can be opened, and the pressure head of the blower is adjusted through the electric adjusting door 9 from the outlet of the blower to the inlet of the primary blower. When the single auxiliary machine operates, the opposite side utilization of the pressure head of the air feeder can be realized by switching the secondary wind electric connection air door 15.
The excess pressure head utilization system of the air feeder is used for gradient utilization of excess air volume of the air feeder, solves the dilemma that the air feeder has large allowance and runs in a low-efficiency area for a long time, and can meet the requirement of increasing the primary air volume ratio of burning inferior coal.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (1)
1. The excess pressure head utilization system of the air feeder is characterized in that one side of the excess pressure head utilization system comprises a primary air pipeline and a secondary air pipeline;
the primary air pipeline comprises a primary fan exhaust inlet, a primary fan silencer, a primary fan outlet electric door, an air preheater and a hot primary air outlet electric door which are connected in sequence;
the secondary air pipeline comprises an air feeder air suction opening, an air feeder silencer, an air feeder outlet electric door, an air preheater and a hot secondary air outlet electric door which are connected in sequence;
the outlet end of the electric door at the outlet of the blower of the secondary air pipeline is connected with the outlet end of the electric door at the outlet of the blower of the secondary air pipeline on the opposite side through a secondary air electric connecting air door;
a pressure head adjusting pipeline of the air feeder is connected between the unilateral primary air pipeline and the secondary air pipeline, and two ends of the pressure head adjusting pipeline of the air feeder are respectively connected with the outlet end of a primary air suction port of the primary air blower and the outlet end of an electric door of an outlet of the air feeder;
the blower pressure head adjusting pipeline is sequentially provided with a blower outlet to a primary air inlet electric door, a blower outlet to a primary air inlet electric adjusting door and a blower outlet to a primary air inlet flowmeter from a secondary air pipeline to a primary air pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922042163.7U CN211526414U (en) | 2019-11-22 | 2019-11-22 | Excessive pressure head utilization system of air feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922042163.7U CN211526414U (en) | 2019-11-22 | 2019-11-22 | Excessive pressure head utilization system of air feeder |
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| CN211526414U true CN211526414U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922042163.7U Active CN211526414U (en) | 2019-11-22 | 2019-11-22 | Excessive pressure head utilization system of air feeder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154368A (en) * | 2021-06-04 | 2021-07-23 | 西安热工研究院有限公司 | Pulverized coal boiler fan arrangement system for reducing noises of air feeder and primary fan |
| CN114593076A (en) * | 2021-12-27 | 2022-06-07 | 余姚风机总厂有限公司 | Low-resistance combustion-promoting secondary fan structure |
-
2019
- 2019-11-22 CN CN201922042163.7U patent/CN211526414U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154368A (en) * | 2021-06-04 | 2021-07-23 | 西安热工研究院有限公司 | Pulverized coal boiler fan arrangement system for reducing noises of air feeder and primary fan |
| CN114593076A (en) * | 2021-12-27 | 2022-06-07 | 余姚风机总厂有限公司 | Low-resistance combustion-promoting secondary fan structure |
| CN114593076B (en) * | 2021-12-27 | 2024-04-02 | 余姚风机总厂有限公司 | Low-resistance combustion-promoting secondary air blower structure |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Xuzhe Inventor after: Yang Lizhi Inventor after: Qu Yaopeng Inventor after: Li Kuan Inventor after: Yu Min Inventor before: Qu Yaopeng Inventor before: Li Kuan Inventor before: Yu Min |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201225 Address after: 136299 Gongnong Township, Longshan District, Liaoyuan City, Jilin Province Patentee after: DATANG LIAOYUAN POWER PLANT Address before: 130012 No. 3195, Wei Shan Road, hi tech Zone, Jilin, Changchun Patentee before: DATANG NORTHEAST ELECTRIC POWER TEST & RESEARCH INSTITUTE Co.,Ltd. |