CN103398370A - 2*55MW utility boiler feed water system - Google Patents
2*55MW utility boiler feed water system Download PDFInfo
- Publication number
- CN103398370A CN103398370A CN2013103581562A CN201310358156A CN103398370A CN 103398370 A CN103398370 A CN 103398370A CN 2013103581562 A CN2013103581562 A CN 2013103581562A CN 201310358156 A CN201310358156 A CN 201310358156A CN 103398370 A CN103398370 A CN 103398370A
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- feed water
- water pump
- utility boiler
- flow regulating
- regulating valve
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Abstract
The invention provides a 2*55 utility boiler feed water system. In a thermal power plant, secondary auxiliary machines such as a water pump and a draught fan have the defects of high capacity and high power consumption, and are main current consuming apparatus. A conventional feed water pump mainly operates at power frequency, and the flow amount of the conventional feed water pump is controlled by adjusting a valve, which has the disadvantages of high electric energy consumption, poor real-time adjustment, high noise and high labor intensity. The 2*55 utility boiler feed water system comprises a high voltage inverter (1), wherein the high voltage inverter is connected with a motor (2); the motor is connected with a feed water pump (4); the feed water pump is connected with a throttle valve (3) through a pipeline; the throttle valve is connected with a bypass small flow regulating valve (6) and a main flow regulating valve (5) respectively through pipelines; a steam drum (7) is connected with the bypass small flow regulating valve and the main flow regulating valve respectively through pipelines. The 2* 55 utility boiler feed water system provided by the invention is used for feeding water for a utility boiler.
Description
Technical field:
The present invention relates to a kind of 2 * 55MW Boiler Feedwater System in Power Plant.
Background technology:
In thermal power plant, the capacity of the secondary subsidiary engines such as water pump and blower fan is large, power consumption is many, is main current consuming apparatus.The method of operation of feed pump in the past is mainly power frequency operation, and its uninterrupted is to control by the method for control valve, and the shortcoming of this control mode is that waste of energy is large, and the adjusting real-time is poor, and noise is large, and labor strength is also large.Along with the adjustment on a large scale of generation load, the feed pump flow also often is in a kind of fall-back state because boiler load changes, and most of energy dissipation is on the valve regulated baffle plate.Due to this particularity of electric load allotment, make the long-term operation continuously of these equipment or often be in underload and variable load operation state, rely on merely traditional baffle plate, valve and fluid coupling speed governing to make energy loss huge.
Summary of the invention:
The purpose of this invention is to provide a kind of 2 * 55MW Boiler Feedwater System in Power Plant.
Above-mentioned purpose realizes by following technical scheme:
A kind of 2 * 55MW Boiler Feedwater System in Power Plant, its composition comprises: high voltage converter, described high voltage converter is connected with motor, described motor is connected with feed pump, described feed pump is connected by pipeline with choke valve, described choke valve is connected by pipeline with bypass control valve for small flows, main flow control valve respectively, and drum is connected by pipeline with described bypass control valve for small flows, described main flow control valve respectively.
Beneficial effect:
One aspect of the present invention is saved electric energy loss, has reduced the boiler feedwater cost; The 2nd, increased the system speed adjustable range, along with the control that the frequency converter output frequency changes the pipe network flow is passed through in the variation adjustment of generation load, improved the flexibility of system operation; After the feed pump frequency control, the outlet pressure of the rotating speed of motor, electric current, water pump all obviously descends, the operation conditions of motor and water pump is obviously improved, direct saving power consumption not only, and, due to the soft start function of frequency converter, reduced the impact to motor and electrical network, extend the service life of equipment, reduced the maintenance cost of equipment.
The accompanying drawing explanation:
Accompanying drawing 1 is structural representation of the present invention.
The specific embodiment:
Embodiment 1:
A kind of 2 * 55MW Boiler Feedwater System in Power Plant, its composition comprises: high voltage converter 1, described high voltage converter is connected with motor 2, described motor is connected with feed pump 4, described feed pump is connected by pipeline with choke valve 3, described choke valve is connected by pipeline with bypass control valve for small flows 6, main flow control valve 5 respectively, and drum 7 is connected by pipeline with described bypass control valve for small flows, described main flow control valve respectively.
Claims (1)
1. 2 * 55MW Boiler Feedwater System in Power Plant, its composition comprises: high voltage converter, it is characterized in that: described high voltage converter is connected with motor, described motor is connected with feed pump, described feed pump is connected by pipeline with choke valve, described choke valve is connected by pipeline with bypass control valve for small flows, main flow control valve respectively, and drum is connected by pipeline with described bypass control valve for small flows, described main flow control valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103581562A CN103398370A (en) | 2013-08-17 | 2013-08-17 | 2*55MW utility boiler feed water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103581562A CN103398370A (en) | 2013-08-17 | 2013-08-17 | 2*55MW utility boiler feed water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103398370A true CN103398370A (en) | 2013-11-20 |
Family
ID=49562049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103581562A Withdrawn CN103398370A (en) | 2013-08-17 | 2013-08-17 | 2*55MW utility boiler feed water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103398370A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114939A (en) * | 2015-04-29 | 2015-12-02 | 大唐桂冠合山发电有限公司 | Feedwater regulating system used for boiler in heat-engine plant |
| CN105402718A (en) * | 2015-11-26 | 2016-03-16 | 湖南华信稀贵科技有限公司 | Water supply system of fuming furnace waste heat boiler |
-
2013
- 2013-08-17 CN CN2013103581562A patent/CN103398370A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114939A (en) * | 2015-04-29 | 2015-12-02 | 大唐桂冠合山发电有限公司 | Feedwater regulating system used for boiler in heat-engine plant |
| CN105114939B (en) * | 2015-04-29 | 2017-07-21 | 大唐桂冠合山发电有限公司 | A kind of Feed Water Regulation System for power plant boiler |
| CN105402718A (en) * | 2015-11-26 | 2016-03-16 | 湖南华信稀贵科技有限公司 | Water supply system of fuming furnace waste heat boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20131120 |