CN103437985A - Method for controlling rapid stream capture of electrical water supply pump - Google Patents
Method for controlling rapid stream capture of electrical water supply pump Download PDFInfo
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- CN103437985A CN103437985A CN2013103251238A CN201310325123A CN103437985A CN 103437985 A CN103437985 A CN 103437985A CN 2013103251238 A CN2013103251238 A CN 2013103251238A CN 201310325123 A CN201310325123 A CN 201310325123A CN 103437985 A CN103437985 A CN 103437985A
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- Prior art keywords
- pump
- electrically driven
- water supply
- driven feedpump
- supply pump
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- 238000000034 method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000001276 controlling effect Effects 0.000 claims description 9
- 238000011022 operating instruction Methods 0.000 claims description 6
- 241000404068 Cotula Species 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract 1
- 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 invention relates to a method for controlling the rapid stream capture of an electrical water supply pump. The method comprises the following main steps of (1) when a pneumatic water supply pump trips out and a rapid stream capture button is pressed down, starting up a standby electrical water supply pump; (2) if the outlet pressure of the electrical water supply pump reaches that of another operating pump within 47 seconds, enabling the electrical water supply pump to operate according to a locked target value, switching a coupler of the pump into an automatic mode after 47 seconds; (3) if the outlet pressure of the electrical water supply pump does not reach that of another operating pump within 47 seconds, keeping the pump at 50% of a target position and switching the pump into an automatic mode. The method has the advantages that intelligent starting-up of the standby equipment is realized, the defect that various problems are brought by manual operation can be avoided, complex steps are rapidly completed, and the electrical water supply pump can be rapidly switched into the automatic mode.
Description
Technical field
The invention belongs to power station and move to the water management techniques field, particularly a kind of electrically driven feedpump is robbed the controlling method of water fast.
Background technique
The feed water pump of large-scale power station monoblock generally is configured to dual-purpose one standby mode, after 1 Feed Pump Trip of emerged in operation, as stand by pump does not start and puts into operation in time, often can cause that boiler water level is too low, blowing out or shutdown cause the accident, for avoiding this massive losses, when a pump breaks down tripping operation, at electric pump, drop under standby prerequisite, electric pump starts with prestissimo, and the instruction of this province will with certain speed arrive and another operation in the middle of water pump with exert oneself the time, meet as early as possible the demand of the generator set water yield, maintain the generation load of existing unit, ensure unit safety, complete " robbing water " function, ensure that the 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 fast the controlling method of water.
The present invention solves its technical problem and takes following technological scheme to realize:
A kind of electrically driven feedpump is robbed the controlling method of water fast, and the step of the method is as follows:
(1) steam feed pump tripping operation, when input is robbed the water button fast, start standby electrically driven feedpump;
(2) by the original operating instruction locking of steam feed pump;
(3) the Coupler regulating command of standby electrically driven feedpump 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 following step;
(4), if in 47 seconds, the outlet pressure of electrically driven feedpump reaches the outlet pressure of another process pump, electrically driven feedpump will, according to the (2) desired value operation of step locking, after 47 seconds, be regulated the Coupler of this pump to drop into automatically;
(5), if do not reach another process pump outlet pressure in 47 seconds, this pump, using 50% as target location, is then regulated this pump Coupler to drop into automatically.
And (2) described step is recorded the locking of the original operating instruction of steam feed pump in steam feed pump tripping operation moment.
And the given pace of described step in (3) be the speed of 100%/min specifically;
And, the target location of described step in (3), two kinds of situations are arranged, (5) (4) the 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, electrically driven feedpump will be according to the (2) desired value operation of step locking, otherwise, using 50% as target location, then this pump Coupler is regulated and dropped 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 possessing this automatic control starting condition, can automatically complete the relevant step order that starts;
2, the drawback that the present invention avoids manually-operable to bring, as misoperation, operate too fast, cross and to wait slowly problem;
3, the present invention, can be by this equipment investment automatic mode after completing fast these complex steps.
Embodiment
Below the embodiment of the present invention is further described, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of electrically driven feedpump is robbed the controlling method of water fast, and the step of the method is as follows:
(1) steam feed pump tripping operation, when input is robbed the water button fast, start standby electrically driven feedpump;
(2) by the original operating instruction locking of steam feed pump; Wherein, by the locking of the original operating instruction of steam feed pump, be to carry out in steam feed pump tripping operation moment;
(3) the Coupler regulating command of standby electrically driven feedpump, according to given pace, is adjusted to target location; Wherein, described given pace is the speed of 100%/min specifically, and described target location is determined by following step;
(4), if in 47 seconds, the outlet pressure of electrically driven feedpump reaches the outlet pressure of another process pump, electrically driven feedpump will, according to the (2) desired value operation of step locking, after 47 seconds, must be regulated the Coupler of this pump to drop into automatically;
(5), if do not reach another process pump outlet pressure in 47 seconds, using 50% as target location, arrival is regulated this pump Coupler to drop into automatically behind target location.
Working principle
The inventive method is after the process pump tripping operation, starts rapidly stand by pump, and stand by pump improves constantly service capacity according to given pace after starting, and reaches the goal-selling value, and after completing goal-selling, this equipment will enter automatic adjustment state automatically.
Claims (4)
1. the controlling method that electrically driven feedpump is robbed water fast, it is characterized in that: the step of the method is as follows:
(1) steam feed pump tripping operation, when input is robbed the water button fast, start standby electrically driven feedpump;
(2) by the original operating instruction locking of steam feed pump;
(3) the Coupler regulating command of standby electrically driven feedpump 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 following step;
(4), if in 47 seconds, the outlet pressure of electrically driven feedpump reaches the outlet pressure of another process pump, electrically driven feedpump will, according to the (2) desired value operation of step locking, after 47 seconds, be regulated the Coupler of this pump to drop into automatically;
(5), if do not reach another process pump outlet pressure in 47 seconds, this pump, using 50% as target location, is then regulated this pump Coupler to drop into automatically.
2. electrically driven feedpump according to claim 1 is robbed the controlling method of water fast, it is characterized in that: (2) described step is recorded the locking of the original operating instruction of steam feed pump in steam feed pump tripping operation moment.
3. electrically driven feedpump according to claim 1 is robbed the controlling method of water fast, it is characterized in that: the given pace of described step in (3) be the speed of 100%/min specifically.
4. electrically driven feedpump according to claim 1 is robbed the controlling method of water fast, it is characterized in that: the target location of described step in (3), two kinds of situations are arranged, (5) (4) the 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, electrically driven feedpump will be according to the (2) desired value operation of step locking, otherwise, using 50% as target location, then this pump Coupler is regulated and dropped 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 true CN103437985A (en) | 2013-12-11 |
| CN103437985B CN103437985B (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN103437985B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791485A (en) * | 2014-02-28 | 2014-05-14 | 国家电网公司 | Optimal control method of water supply system of thermal power generating unit |
| WO2017071548A1 (en) * | 2015-10-28 | 2017-05-04 | 广东电网有限责任公司电力科学研究院 | Balance control method and system for abrupt change in device output |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614203B (en) * | 2009-07-27 | 2011-05-25 | 广州粤能电力科技开发有限公司 | Method and system for automatically controlling motor-driven feed-water pump |
-
2013
- 2013-07-30 CN CN201310325123.8A patent/CN103437985B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791485A (en) * | 2014-02-28 | 2014-05-14 | 国家电网公司 | Optimal control method of water supply system of thermal power generating unit |
| 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 |
| WO2017071548A1 (en) * | 2015-10-28 | 2017-05-04 | 广东电网有限责任公司电力科学研究院 | Balance control method and system for abrupt change in device output |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103437985B (en) | 2015-12-09 |
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