CN105402718A - Water supply system of fuming furnace waste heat boiler - Google Patents
Water supply system of fuming furnace waste heat boiler Download PDFInfo
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- CN105402718A CN105402718A CN201510833678.2A CN201510833678A CN105402718A CN 105402718 A CN105402718 A CN 105402718A CN 201510833678 A CN201510833678 A CN 201510833678A CN 105402718 A CN105402718 A CN 105402718A
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- China
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- waste heat
- heat boiler
- water supply
- fuming furnace
- furnace waste
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention relates to a water supply system of a fuming furnace waste heat boiler. The water supply system comprises a fuming furnace waste heat boiler drum, a water inlet pipeline and a water supply pump on the water inlet pipeline, wherein a power supply loop of a motor of the water supply pump is connected with a frequency conversion controller; a water level sensor is mounted in the fuming furnace waste heat boiler drum; water level signals of the water level sensor are connected with a control terminal of the frequency conversion controller through conversion of an A/D (analog-to-digital) module, accordingly, the revolving speed of the motor of the water supply pump is changed according to change of the water level of the fuming furnace waste heat boiler drum, and the water supply flow is adjusted automatically. According to the water supply system of the fuming furnace waste heat boiler, the pump body load can be effectively reduced, the energy consumption is reduced, the pump body vibration is reduced, the service life of the water supply pump is effectively prolonged, the operation is convenient, and the stability of the water level of the fuming furnace waste heat boiler drum can be effectively controlled.
Description
Technical field
The present invention relates to the water system of boiler, particularly a kind of water supply system of fuming furnace waste heat boiler.
Background technology
Its exhaust chimney of the fuming furnace that lead smelt industry uses is equipped with waste heat boiler, plays the effect that flue gas is discharged in cooling.Because the fluctuation of fuming furnace production technology is comparatively large, cause waste heat boiler to be operated in service condition in hot environment unstable, feed pump runs for a long time under low load condition, and water supply pump motor power factor (PF) is very low, causes power consumption higher.And in use, often occur that water pump body vibrations are large, easily cause device damage, serious restriction is produced and is carried out smoothly.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of water supply system of fuming furnace waste heat boiler, can effectively reduce pump housing load, save energy consumption, alleviate pump housing vibrations, effectively extend feed pump service life, easy to operate, effectively can also control the stable of fuming furnace waste heat boiler boiler drum water level.
Technical scheme of the present invention: a kind of water supply system of fuming furnace waste heat boiler, comprises the feed pump on fuming furnace waste heat boiler drum, inlet channel and inlet channel; It is characterized in that: the current supply circuit of described water supply pump motor connects a frequency-variable controller; At fuming furnace waste heat boiler drum built with level sensor, the water level signal of level sensor connects the control end of frequency-variable controller by A/D module converts, make water supply pump motor change rotating speed according to the change of fuming furnace waste heat boiler boiler drum water level, automatically adjust water supply flow.
Major advantage of the present invention is: feed pump type of drive driven by power frequency and change frequency conversion drive into, frequency-variable controller, according to boiler feed water amount reasonable adjusting water supply pump motor rotating speed, meets water requirements, effectively can control the load reducing water supply pump motor.Through actual motion test, the present invention's save electricity per hour is about 30KWh, year power cost saving more than about 100,000 yuan.The present invention uses frequency-variable controller to carry out variable frequency starting to pump motor, and the impact to the pump housing when greatly reducing device start, can effectively reduce pump housing load, alleviates pump housing vibrations, effectively extends feed pump service life, reduces maintenance capacity greatly; Reduce the system stopping production that device damage causes, ensure carrying out smoothly of production; Easy to operate, effectively can control the stable of fuming furnace waste heat boiler boiler drum water level.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, mark is: 1 fuming furnace waste heat boiler drum; 2 inlet channels; 3 feed pumps; 4 frequency-variable controllers; 5 level sensors; 6A/D module.
Detailed description of the invention
Below in conjunction with accompanying drawing specific embodiment, content of the present invention is described.
As shown in Figure 1, a kind of water supply system of fuming furnace waste heat boiler, comprises the feed pump 3 on fuming furnace waste heat boiler drum 1, inlet channel 2 and inlet channel 2; It is characterized in that: the current supply circuit of described feed pump 3 motor connects a frequency-variable controller 4; At fuming furnace waste heat boiler drum 1 built with level sensor 5, the water level signal of level sensor 5 connects the control end of frequency-variable controller 4 by A/D module 6 conversion, make feed pump 3 motor change rotating speed according to the change of fuming furnace waste heat boiler drum 1 water level, automatically adjust water supply flow.
Start frequency-variable controller 4, feed pump 3 motor obtains electric starting running, the water filling of fuming furnace waste heat boiler drum 1 given by feed pump 3, water level raises, the water of fuming furnace waste heat boiler is through discharging flue gas evaporation, water level reduces again, and when the water injection rate of feed pump 3 equals the water heating evaporation amount of fuming furnace waste heat boiler, fuming furnace waste heat boiler boiler drum water level remains stable.Now feed pump 3 motor maintains certain rotating speed.When fluctuation appears in fuming furnace production technology, cause fuming furnace waste heat boiler boiler drum water level to raise or reduce, level sensor 5 sends water level signal to be reduced or elevated frequencies by A/D module 6 conversion and control frequency-variable controller 4, feed pump 3 adjusts injection flow immediately, achieves and effectively controls the stable of fuming furnace waste heat boiler drum 1 water level.
Claims (1)
1. a water supply system for fuming furnace waste heat boiler, comprises the feed pump (3) on fuming furnace waste heat boiler drum (1), inlet channel (2) and inlet channel (2); It is characterized in that: the current supply circuit of described feed pump (3) motor connects a frequency-variable controller (4); At fuming furnace waste heat boiler drum (1) built with level sensor (5), the water level signal of level sensor (5) connects the control end of frequency-variable controller (4) by A/D module (6) conversion, make feed pump (3) motor change rotating speed according to the change of fuming furnace waste heat boiler drum (1) water level, automatically adjust water supply flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833678.2A CN105402718A (en) | 2015-11-26 | 2015-11-26 | Water supply system of fuming furnace waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833678.2A CN105402718A (en) | 2015-11-26 | 2015-11-26 | Water supply system of fuming furnace waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402718A true CN105402718A (en) | 2016-03-16 |
Family
ID=55468372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510833678.2A Pending CN105402718A (en) | 2015-11-26 | 2015-11-26 | Water supply system of fuming furnace waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402718A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117627905A (en) * | 2023-11-10 | 2024-03-01 | 中国船舶集团有限公司第七一九研究所 | Redundant control system for rotating speed of feed pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005282932A (en) * | 2004-03-29 | 2005-10-13 | Miura Co Ltd | Water feed control method for boiler and its device |
| CN2811759Y (en) * | 2005-04-14 | 2006-08-30 | 王勇 | Automatic frequency conversion and water supplementing control apparatus for steam boiler |
| CN201903047U (en) * | 2011-03-31 | 2011-07-20 | 广州大学城华电新能源有限公司 | Liquid level regulating device of boiler drum |
| CN201964390U (en) * | 2010-12-29 | 2011-09-07 | 苏州汉风科技发展有限公司 | Automatic control device for intelligent power-saving device |
| CN202757113U (en) * | 2012-07-24 | 2013-02-27 | 中钢集团吉林炭素股份有限公司 | Automatic adjusting device of water level of boiler |
| CN103398370A (en) * | 2013-08-17 | 2013-11-20 | 黑龙江宏宇电站设备有限公司 | 2*55MW utility boiler feed water system |
| CN204042854U (en) * | 2014-09-11 | 2014-12-24 | 石狮市酷瑞电气有限责任公司 | A kind of continous way drum water system |
-
2015
- 2015-11-26 CN CN201510833678.2A patent/CN105402718A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005282932A (en) * | 2004-03-29 | 2005-10-13 | Miura Co Ltd | Water feed control method for boiler and its device |
| CN2811759Y (en) * | 2005-04-14 | 2006-08-30 | 王勇 | Automatic frequency conversion and water supplementing control apparatus for steam boiler |
| CN201964390U (en) * | 2010-12-29 | 2011-09-07 | 苏州汉风科技发展有限公司 | Automatic control device for intelligent power-saving device |
| CN201903047U (en) * | 2011-03-31 | 2011-07-20 | 广州大学城华电新能源有限公司 | Liquid level regulating device of boiler drum |
| CN202757113U (en) * | 2012-07-24 | 2013-02-27 | 中钢集团吉林炭素股份有限公司 | Automatic adjusting device of water level of boiler |
| CN103398370A (en) * | 2013-08-17 | 2013-11-20 | 黑龙江宏宇电站设备有限公司 | 2*55MW utility boiler feed water system |
| CN204042854U (en) * | 2014-09-11 | 2014-12-24 | 石狮市酷瑞电气有限责任公司 | A kind of continous way drum water system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117627905A (en) * | 2023-11-10 | 2024-03-01 | 中国船舶集团有限公司第七一九研究所 | Redundant control system for rotating speed of feed pump |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |