CN103437985B - The controlling method of water robbed fast by a kind of electrically driven feedpump - Google Patents
The controlling method of water robbed fast by a kind of electrically driven feedpump Download PDFInfo
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- CN103437985B CN103437985B CN201310325123.8A CN201310325123A CN103437985B CN 103437985 B CN103437985 B CN 103437985B CN 201310325123 A CN201310325123 A CN 201310325123A CN 103437985 B CN103437985 B CN 103437985B
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- driven feedpump
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- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 230000001276 controlling effect Effects 0.000 claims abstract description 7
- 241000404068 Cotula Species 0.000 claims abstract description 4
- 238000011022 operating instruction Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The present invention relates to the controlling method that water robbed fast by a kind of electrically driven feedpump, the step of method mainly comprises: (1) steam feed pump tripping operation, when input robs water button fast, starts electrically driven feedpump for subsequent use; If (2) in 47 seconds, the outlet pressure of electrically driven feedpump reaches the outlet pressure of another process pump, the desired value according to locking is run by electrically driven feedpump, after 47 seconds, is regulated by the Coupler of this pump and drops into automatically; If (3) do not reach another process pump outlet pressure in 47 seconds, then this pump keeps target location 50%, and is dropped into automatically by this pump.The present invention realizes standby equipment and starts intelligent, avoids manually-operable to bring the drawback of various problem, completes complex steps fast and drop into automatic mode.
Description
Technical field
The invention belongs to power station runs to water management techniques field, and particularly the controlling method of water robbed fast by a kind of electrically driven feedpump.
Background technique
The feed water pump of large-scale power station monoblock is generally configured to dual-purpose one for mode, when after emerged in operation 1 Feed Pump Trip, put into operation as stand by pump does not start in time, boiler water level often can be caused too low, cause the accident blowing out or shutdown, for avoiding this massive losses, when a pump breaks down tripping operation, under electric pump drops into prerequisite for subsequent use, electric pump starts with prestissimo, and the instruction of this province is by when exerting oneself so that the water pump in the middle of the arrival of certain speed and another operation is same, meet the demand of the generator set water yield as early as possible, maintain the generation load of existing unit, ensure unit safety, complete " robbing water " function, ensure that generator set safe operation is very necessary.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of electrically driven feedpump to rob the controlling method of water fast.
The present invention solves its technical problem and takes following technological scheme to realize:
A controlling method for water robbed fast by electrically driven feedpump, and the step of the method is as follows:
(1) steam feed pump tripping operation, when input robs water button fast, starts electrically driven feedpump for subsequent use;
(2) by original for steam feed pump operating instruction locking;
(3) the Coupler regulating command of electrically driven feedpump for subsequent use is according to given pace, and this speed is set to 100%/min, is adjusted to target location, and (5) (4) target location determined by step below;
If (4) in 47 seconds, the outlet pressure of electrically driven feedpump reaches the outlet pressure of another process pump, the desired value (2) walking locking according to the is run by electrically driven feedpump, after 47 seconds, is regulated by the Coupler of this pump and drops into automatically;
If (5) do not reach another process pump outlet pressure in 47 seconds, then this pump is using 50% as target location, is then regulated by this pump Coupler and drops into automatically.
And (2) original for steam feed pump operating instruction locking is recorded in steam feed pump tripping operation by described step instantaneously.
And, described step (3) in the speed of given pace specifically 100%/min;
And, described step (3) in target location, there are two kinds of situations, (5) (4) objectives position determined by step, if in 47 seconds, the outlet pressure P3 of electrically driven feedpump reaches the outlet pressure P2 of another process pump, i.e. P3 >=P2, the desired value (2) walking locking according to the is run by electrically driven feedpump, otherwise using 50% as target location, then this pump Coupler is regulated and drop into automatically.
Advantage of the present invention and good effect are
1, the present invention realizes the automatic control of standby equipment start-up course, after namely possessing this automatic control starting condition, automatically can complete relevant startup and walking sequence;
2, the present invention's drawback of avoiding manually-operable to bring, as misoperation, operates the problems such as too fast, excessively slow;
3, the present invention is after completing these complex steps fast, can by this equipment investment automatic mode.
Embodiment
Be further described the embodiment of the present invention below, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A controlling method for water robbed fast by electrically driven feedpump, and the step of the method is as follows:
(1) steam feed pump tripping operation, when input robs water button fast, starts electrically driven feedpump for subsequent use;
(2) by original for steam feed pump operating instruction locking; Wherein, being locked by original for steam feed pump operating instruction is carry out instantaneously in steam feed pump tripping operation;
(3) the Coupler regulating command of electrically driven feedpump for subsequent use is according to given pace, is adjusted to target location; Wherein, the speed of described given pace specifically 100%/min, described target location is determined by step below;
If (4) in 47 seconds, the outlet pressure of electrically driven feedpump reaches the outlet pressure of another process pump, the desired value according to the (2) step locking is run by electrically driven feedpump, after 47 seconds, the Coupler of this pump must be regulated and drop into automatically;
If (5) do not reach another process pump outlet pressure in 47 seconds, then using 50% as target location, arrive this pump Coupler to be regulated behind target location and drop into automatically.
Working principle
The inventive method is after process pump tripping operation, and start stand by pump rapidly, after stand by pump starts, improve constantly service capacity according to given pace, reach predetermined target value, after completing goal-selling, this equipment will enter automatic adjustment state automatically.
Claims (1)
1. a controlling method for water robbed fast by electrically driven feedpump, it is characterized in that: the step of the method is as follows:
(1) steam feed pump tripping operation, when input robs water button fast, starts electrically driven feedpump for subsequent use;
(2) by original for steam feed pump operating instruction locking, and the original operating instruction of locking is recorded instantaneously in steam feed pump tripping operation;
(3) the Coupler regulating command of electrically driven feedpump for subsequent use is according to given pace, and this speed is set to 100%/min, is adjusted to target location, and (5) (4) objectives position determined by step;
If (4) in 47 seconds, the outlet pressure of electrically driven feedpump reaches the outlet pressure of another process pump, the desired value (2) walking locking according to the is run by electrically driven feedpump, after 47 seconds, is regulated by the Coupler of this pump and drops into automatically;
If (5) do not reach another process pump outlet pressure in 47 seconds, then this pump is using 50% as target location, is then regulated by this pump Coupler and drops into automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310325123.8A CN103437985B (en) | 2013-07-30 | 2013-07-30 | The controlling method of water robbed fast by a kind of electrically driven feedpump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310325123.8A CN103437985B (en) | 2013-07-30 | 2013-07-30 | The controlling method of water robbed fast by a kind of electrically driven feedpump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103437985A CN103437985A (en) | 2013-12-11 |
| CN103437985B true CN103437985B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310325123.8A Active CN103437985B (en) | 2013-07-30 | 2013-07-30 | The controlling method of water robbed fast by a kind of electrically driven feedpump |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791485B (en) * | 2014-02-28 | 2015-04-22 | 国家电网公司 | Optimal control method of water supply system of thermal power generating unit |
| CN105242528B (en) * | 2015-10-28 | 2017-11-14 | 广东电网有限责任公司电力科学研究院 | Equipment output mutational equilibrium control method and system |
| CN106704212A (en) * | 2016-12-29 | 2017-05-24 | 中国能源建设集团华北电力试验研究院有限公司 | Undisturbed switching control method for standby pump of electrically-driven feed pumps |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614203A (en) * | 2009-07-27 | 2009-12-30 | 广州粤能电力科技开发有限公司 | A kind of electrically driven feedpump is the method and system of control automatically |
-
2013
- 2013-07-30 CN CN201310325123.8A patent/CN103437985B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614203A (en) * | 2009-07-27 | 2009-12-30 | 广州粤能电力科技开发有限公司 | A kind of electrically driven feedpump is the method and system of control automatically |
Non-Patent Citations (3)
| Title |
|---|
| 330MW循环流化床锅炉电动给水泵抢水逻辑分析及优化;宋继业等;《工业控制计算机》;20110630;第24卷(第6期);第80-84页 * |
| 亚临界机组RB控制逻辑的优化;赵军等;《热力发电》;20101130;第39卷(第11期);第69-72,76页 * |
| 新华XDPS400+控制系统在宁夏某电厂抢水功能中的应用;潘晓峰等;《宁夏电力》;20091231;第195-198页 * |
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| CN103437985A (en) | 2013-12-11 |
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