CN105003427A - Online efficiency monitoring method of condensate pump of thermal power generating unit - Google Patents
Online efficiency monitoring method of condensate pump of thermal power generating unit Download PDFInfo
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- CN105003427A CN105003427A CN201510376764.5A CN201510376764A CN105003427A CN 105003427 A CN105003427 A CN 105003427A CN 201510376764 A CN201510376764 A CN 201510376764A CN 105003427 A CN105003427 A CN 105003427A
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Abstract
The invention relates to an online efficiency monitoring method of a condensate pump of a thermal power generating unit. The method comprises the following steps: an acquiring module acquires needed real-time operation data of the condensate pump; an acquiring network re-encodes and isolates the received transmission data; a data processing module judges a data range of the data and averages the data; a calculating module calculates the lift of the condensate pump, the effective power of the condensate pump and the efficiency of the condensate pump for the received data; a data storage server receives the data, and classifies and stores the data; and the efficiency of the condensate pump and the history operation data presented in table and curve forms are displayed. The method reflects the efficiency and the history operation data of the condensate pump of the thermal power generating unit in chart and history curve forms, helps operators to master the efficiency of the condensate pump of the thermal power generating unit, and provides the reference for the economic operation of the condensate pump of the thermal power generating unit.
Description
Technical field
The invention belongs to thermal power generation field of energy-saving technology, particularly a kind of fired power generating unit condensate pump efficiency on-line monitoring method.
Background technique
Condensate pump is one of thermal power generation unit major pant item equipment, fired power generating unit condensate pump efficiency can only be obtained by experiment calculation at present, also not having can the method for Real-Time Monitoring fired power generating unit condensate pump efficiency, causes the economical operation of fired power generating unit condensate pump to lack necessary technical support.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, and propose a kind of fired power generating unit condensate pump efficiency on-line monitoring method.
The present invention solves its technical problem and takes following technological scheme to realize:
A kind of fired power generating unit condensate pump efficiency on-line monitoring method, comprises step as follows:
(1) fired power generating unit condensate pump real-time running data acquisition module is from fired power generating unit condensate pump real-time running data needed for operating unit decentralized control system collection of server, and real-time running data is sent to fired power generating unit condensate pump real-time data acquisition net;
(2) fired power generating unit condensate pump real-time data acquisition net carries out recompile to the transmission data received, and isolation contacts with other data transmission network outside, and recompile result is sent to real time data processing module and data storage server;
(3) real time data processing module is judged by the data received fired power generating unit condensate pump raw operational data and processes, the judgement of data area completed successively for data-signal and averages, and processing result being sent to fired power generating unit condensate pump efficiency calculation module;
(4) fired power generating unit condensate pump efficiency calculation module calculates fired power generating unit condensate pump lift and fired power generating unit condensate pump useful horsepower under current operating conditions to reception data, and then calculate fired power generating unit condensate pump efficiency, and result of calculation is sent to fired power generating unit condensate pump efficiency monitoring system main display and data storage server;
(5) data storage server receives the data coming from fired power generating unit condensate pump real-time data acquisition net and fired power generating unit condensate pump efficiency calculation module simultaneously, and complete classification and the storage of data, for user of service's transferring and subsequent treatment historical data;
(6) fired power generating unit condensate pump efficiency monitoring system main display presents fired power generating unit condensate pump efficiency real-time running data and history data with the form of form and curve simultaneously.
And described step (1) middle fired power generating unit condensate pump real-time running data specifically comprises: condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q and condensate pump motor input power P
gr.
And, described step (2) in receive transmission data carry out recompile be will receive condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
grtransmission data are again carried out combination П binary data and are encoded with time data bag.
And, described step (3) in data area completes successively for data-signal judgement concrete steps be:
1. the height limit range ability of often kind of data-signal is set in real time data processing module;
2. often kind of data-signal real time data processing module received limits range ability to compare with height respectively, if in range ability, then judges that data are rationally available, if not in range ability, then judges that data are unreasonable, and carry out alarm;
3. for the data adopting dual or multiple measuring point, after completing data rationality and judging, arithmetic mean is carried out to all measuring point datas, and using the end value of mean value as this measuring point.
And, described step (4) described in the circular of fired power generating unit condensate pump lift be:
1. calculate water of condensation density p by condensing water temperature T, represent with function ρ=f (T);
2. condensate pump inlet pipeline flow velocity V is calculated by condensate pump flow Q
1, V
1=Q/S
1, wherein S
1for condensate pump inlet pipeline sectional area, it is known parameters;
3. condensate pump outlet conduit flow velocity V is calculated by condensate pump flow Q
2, V
2=Q/S
2, wherein S
2for condensate pump outlet conduit sectional area, it is known parameters;
4. fired power generating unit condensate pump lift H=(P
2-P
1)/(ρ × g)+Z
2-Z
1+ (V
2× V
2-V
1× V
1)/(2 × g), wherein g is gravity accleration, is known constant; Z
2for cross section absolute altitude is measured in outlet, it is known parameters; Z
1for cross section absolute altitude is measured in import, it is known parameters.
And, described step (4) in the circular of fired power generating unit condensate pump useful horsepower be:
Fired power generating unit condensate pump useful horsepower P
u=(Q × H × ρ × g)/1000, wherein Q is condensate pump flow, and H is fired power generating unit condensate pump lift, and ρ is water of condensation density, and g is gravity accleration.
The circular of described fired power generating unit condensate pump efficiency is:
Fired power generating unit condensate pump efficiency eta=P
u/ (P
gr× η
gr), wherein P
ufor fired power generating unit condensate pump useful horsepower, P
grfor condensate pump motor input power, η
grfor motor efficiency, it is known parameters.
And, described step (5) in the concrete sorting technique of Data classification be:
1. data are divided into fired power generating unit condensate pump real-time running data and calculation result data, and wherein fired power generating unit condensate pump real-time running data comprises: condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
gr;
2. because fired power generating unit condensate pump real-time running data gathers self-operating unit decentralized control system server, no longer preserve in notebook data storage server, only complete calculation result data and store with time packet synchronisation.
And described step (6) middle form specifically comprises condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
gr; Described curve specifically comprises the time dependent curve of fired power generating unit condensate pump lift, the time dependent curve of fired power generating unit condensate pump useful horsepower and the time dependent curve of fired power generating unit condensate pump efficiency.
Advantage of the present invention and good effect are:
Fired power generating unit condensate pump real-time running data acquisition module, fired power generating unit condensate pump real-time data acquisition net, real time data processing module, fired power generating unit condensate pump efficiency calculation module, data storage server, fired power generating unit condensate pump efficiency monitoring system key frame link together by the present invention, form fired power generating unit condensate pump efficiency on-line monitoring system.This system is by calculating fired power generating unit condensate pump lift, fired power generating unit condensate pump useful horsepower and the fired power generating unit condensate pump efficiency that can reflect fired power generating unit condensate pump running state in real time, and present to operations staff with the form of chart and history curve, operations staff is helped to grasp the overall performance of fired power generating unit condensate pump, for the economical operation of fired power generating unit condensate pump system provides reference.
Accompanying drawing explanation
Fig. 1 is the system connection diagram of fired power generating unit condensate pump efficiency on-line monitoring method of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described: it is emphasized that; embodiment of the present invention is illustrative; instead of it is determinate; therefore the present invention is not limited to the embodiment described in embodiment; every other mode of execution drawn by those skilled in the art's technological scheme according to the present invention, belongs to the scope of protection of the invention equally.
A kind of fired power generating unit condensate pump efficiency on-line monitoring method, as shown in Figure 1, the hardware system that the method uses comprises: fired power generating unit condensate pump real-time running data acquisition module, fired power generating unit condensate pump real-time data acquisition net, real time data processing module, fired power generating unit condensate pump efficiency calculation module, data storage server, fired power generating unit condensate pump efficiency monitoring system main display and operating unit decentralized control system (DCS) server, and the concrete steps of the method are as follows:
(1) fired power generating unit condensate pump service data acquisition module is from fired power generating unit condensate pump real-time running data needed for operating unit decentralized control system (DCS) collection of server, and real-time running data is sent to fired power generating unit condensate pump real-time data acquisition net;
Wherein, fired power generating unit condensate pump real-time running data specifically comprises: condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
gr.
(2) fired power generating unit condensate pump real-time data acquisition net carries out recompile to the transmission data received, and isolation contacts with other data transmission network outside; And recompile result is sent to real time data processing module and data storage server;
Wherein, carrying out recompile to the transmission data received is the condensate pump inlet pressure P that will receive
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
grtransmission data are again carried out combination П binary data and are encoded with time data bag.
(3) real time data processing module is judged by the data received fired power generating unit condensate pump raw operational data and processes, the judgement of data area completed successively for data-signal and averages, and processing result being sent to fired power generating unit condensate pump efficiency calculation module;
(4) fired power generating unit condensate pump efficiency calculation module calculates fired power generating unit condensate pump lift and fired power generating unit condensate pump useful horsepower under current operating conditions to reception data, and then calculate fired power generating unit condensate pump efficiency, and result of calculation is sent to fired power generating unit condensate pump efficiency monitoring system main display and data storage server;
(5) data storage server receives the data coming from fired power generating unit condensate pump real-time data acquisition net and fired power generating unit condensate pump efficiency calculation module simultaneously, and complete classification and the storage of data, for user of service's transferring and subsequent treatment historical data;
(6) fired power generating unit condensate pump efficiency monitoring system main display presents real time data and the historical data of fired power generating unit condensate pump efficiency simultaneously with the form of form and curve.
In specific embodiment of the invention, described step (1) middle fired power generating unit condensate pump real-time running data specifically comprises: condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
gr.
In specific embodiment of the invention, described step (2) in receive transmission data carry out recompile be will receive condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
grtransmission data are again carried out combination П binary data and are encoded with time data bag.
In specific embodiment of the invention, described step (3) in data area completes successively for data-signal judgement concrete steps be:
1. the height limit range ability of often kind of data-signal is set in real time data processing module;
2. often kind of data-signal real time data processing module received limits range ability to compare with height respectively, if in range ability, then judges that data are rationally available, if not in range ability, then judges that data are unreasonable, and carry out alarm;
3. for the data adopting dual or multiple measuring point, after completing data rationality and judging, arithmetic mean is carried out to all measuring point datas, and using the end value of mean value as this measuring point.
In specific embodiment of the invention, described step (4) described in the circular of fired power generating unit condensate pump lift be:
1. calculate water of condensation density p by condensing water temperature T, represent with function ρ=f (T);
2. condensate pump inlet pipeline flow velocity V is calculated by condensate pump flow Q
1, V
1=Q/S
1, wherein S
1for condensate pump inlet pipeline sectional area, it is known parameters;
3. condensate pump outlet conduit flow velocity V is calculated by condensate pump flow Q
2, V
2=Q/S
2, wherein S
2for condensate pump outlet conduit sectional area, it is known parameters;
4. fired power generating unit condensate pump lift H=(P
2-P
1)/(ρ × g)+Z
2-Z
1+ (V
2× V
2-V
1× V
1)/(2 × g), wherein g is gravity accleration, is known constant; Z
2for cross section absolute altitude is measured in outlet, it is known parameters; Z
1for cross section absolute altitude is measured in import, it is known parameters.
In specific embodiment of the invention, described step (4) described in the circular of fired power generating unit condensate pump useful horsepower be:
1. fired power generating unit condensate pump useful horsepower P
u=(Q × H × ρ × g)/1000, wherein Q is condensate pump flow, and H is fired power generating unit condensate pump lift, and ρ is water of condensation density, and g is gravity accleration.
In specific embodiment of the invention, described step (4) described in the circular of fired power generating unit condensate pump efficiency be:
1. fired power generating unit condensate pump efficiency eta=P
u/ (P
gr× η
gr), wherein P
ufor fired power generating unit condensate pump useful horsepower, P
grfor condensate pump motor input power, η
grfor motor efficiency, it is known parameters.
In specific embodiment of the invention, described step (5) described in the concrete sorting technique of Data classification be:
1. data are divided into fired power generating unit condensate pump real-time running data and calculation result data, and wherein fired power generating unit condensate pump real-time running data comprises: condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
gr;
2. because fired power generating unit condensate pump real-time running data gathers self-operating unit decentralized control system (DCS) server, no longer preserve in notebook data storage server, only complete calculation result data and store with time packet synchronisation.
In specific embodiment of the invention, described step (6) described in form specifically comprise condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
gr;
Wherein, described curve specifically comprises:
1. the time dependent curve of fired power generating unit condensate pump lift;
2. the time dependent curve of fired power generating unit condensate pump useful horsepower;
3. the time dependent curve of fired power generating unit condensate pump efficiency.
Claims (8)
1. a fired power generating unit condensate pump efficiency on-line monitoring method, is characterized in that comprising step as follows:
(1) fired power generating unit condensate pump real-time running data acquisition module is from fired power generating unit condensate pump real-time running data needed for operating unit decentralized control system collection of server, and real-time running data is sent to fired power generating unit condensate pump real-time data acquisition net;
(2) fired power generating unit condensate pump real-time data acquisition net carries out recompile to the transmission data received, and isolation contacts with other data transmission network outside, and recompile result is sent to real time data processing module and data storage server;
(3) real time data processing module is judged by the data received fired power generating unit condensate pump raw operational data and processes, the judgement of data area completed successively for data-signal and averages, and processing result being sent to fired power generating unit condensate pump efficiency calculation module;
(4) fired power generating unit condensate pump efficiency calculation module calculates fired power generating unit condensate pump lift and fired power generating unit condensate pump useful horsepower under current operating conditions to reception data, and then calculate fired power generating unit condensate pump efficiency, and result of calculation is sent to fired power generating unit condensate pump efficiency monitoring system main display and data storage server;
(5) data storage server receives the data coming from fired power generating unit condensate pump real-time data acquisition net and fired power generating unit condensate pump efficiency calculation module simultaneously, and complete classification and the storage of data, for user of service's transferring and subsequent treatment historical data;
(6) fired power generating unit condensate pump efficiency monitoring system main display presents fired power generating unit condensate pump efficiency real-time running data and history data with the form of form and curve simultaneously.
2. fired power generating unit condensate pump efficiency on-line monitoring method according to claim 1, is characterized in that: described step (1) middle fired power generating unit condensate pump real-time running data specifically comprises: condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q and condensate pump motor input power P
gr.
3. fired power generating unit condensate pump efficiency on-line monitoring method according to claim 1, is characterized in that: described step (2) in receive transmission data carry out recompile be will receive condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
grtransmission data are again carried out combination П binary data and are encoded with time data bag.
4. fired power generating unit condensate pump efficiency on-line monitoring method according to claim 1, is characterized in that: described step (3) in data area completes successively for data-signal judgement concrete steps be:
1. the height limit range ability of often kind of data-signal is set in real time data processing module;
2. often kind of data-signal real time data processing module received limits range ability to compare with height respectively, if in range ability, then judges that data are rationally available, if not in range ability, then judges that data are unreasonable, and carry out alarm;
3. for the data adopting dual or multiple measuring point, after completing data rationality and judging, arithmetic mean is carried out to all measuring point datas, and using the end value of mean value as this measuring point.
5. fired power generating unit condensate pump efficiency on-line monitoring method according to claim 1, is characterized in that: described step (4) described in the circular of fired power generating unit condensate pump lift be:
1. calculate water of condensation density p by condensing water temperature T, represent with function ρ=f (T);
2. condensate pump inlet pipeline flow velocity V is calculated by condensate pump flow Q
1, V
1=Q/S
1, wherein S
1for condensate pump inlet pipeline sectional area, it is known parameters;
3. condensate pump outlet conduit flow velocity V is calculated by condensate pump flow Q
2, V
2=Q/S
2, wherein S
2for condensate pump outlet conduit sectional area, it is known parameters;
4. fired power generating unit condensate pump lift H=(P
2-P
1)/(ρ × g)+Z
2-Z
1+ (V
2× V
2-V
1× V
1)/(2 × g), wherein g is gravity accleration, is known constant; Z
2for cross section absolute altitude is measured in outlet, it is known parameters; Z
1for cross section absolute altitude is measured in import, it is known parameters.
6. fired power generating unit condensate pump efficiency on-line monitoring method according to claim 1, is characterized in that: described step (4) in the circular of fired power generating unit condensate pump useful horsepower be:
Fired power generating unit condensate pump useful horsepower P
u=(Q × H × ρ × g)/1000, wherein Q is condensate pump flow, and H is fired power generating unit condensate pump lift, and ρ is water of condensation density, and g is gravity accleration.
The circular of described fired power generating unit condensate pump efficiency is:
Fired power generating unit condensate pump efficiency eta=P
u/ (P
gr× η
gr), wherein P
ufor fired power generating unit condensate pump useful horsepower, P
grfor condensate pump motor input power, η
grfor motor efficiency, it is known parameters.
7. fired power generating unit condensate pump efficiency on-line monitoring method according to claim 1, is characterized in that: described step (5) in the concrete sorting technique of Data classification be:
1. data are divided into fired power generating unit condensate pump real-time running data and calculation result data, and wherein fired power generating unit condensate pump real-time running data comprises: condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
gr;
2. because fired power generating unit condensate pump real-time running data gathers self-operating unit decentralized control system server, no longer preserve in notebook data storage server, only complete calculation result data and store with time packet synchronisation.
8. fired power generating unit condensate pump efficiency on-line monitoring method according to claim 1, is characterized in that: described step (6) middle form specifically comprises condensate pump inlet pressure P
1, condensate pump outlet pressure P
2, condensing water temperature T, condensate pump flow Q, condensate pump motor input power P
gr; Described curve specifically comprises the time dependent curve of fired power generating unit condensate pump lift, the time dependent curve of fired power generating unit condensate pump useful horsepower and the time dependent curve of fired power generating unit condensate pump efficiency.
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| CN105889053A (en) * | 2016-04-15 | 2016-08-24 | 国网天津市电力公司 | On-line monitoring method for efficiency of drainage pump of heat supply network of cogeneration unit |
| CN108019344A (en) * | 2017-12-04 | 2018-05-11 | 广西电网有限责任公司电力科学研究院 | A kind of motor-driven feed-water pump set Efficiency test method |
| CN108050053A (en) * | 2017-12-04 | 2018-05-18 | 广西电网有限责任公司电力科学研究院 | A kind of condensate pump Efficiency test method |
| CN110195708A (en) * | 2018-02-24 | 2019-09-03 | 焦作煤业(集团)有限责任公司电冶分公司 | A kind of circulating water pump in thermal power plant efficiency on-line monitoring method |
| CN111535873A (en) * | 2020-04-13 | 2020-08-14 | 浙江浙能技术研究院有限公司 | Method for online monitoring efficiency of steam turbine set of water feed pump based on historical data |
| CN112333021A (en) * | 2020-11-03 | 2021-02-05 | 华能国际电力股份有限公司南通电厂 | Real-time Chinese soft photon tablet alarm and digital display device for thermal power generating unit |
| CN113642199A (en) * | 2021-10-18 | 2021-11-12 | 德仕能源科技集团股份有限公司 | Artificial intelligence-based crude oil coagulation identification method and equipment |
| CN114135478A (en) * | 2021-11-25 | 2022-03-04 | 国网河北能源技术服务有限公司 | Expected energy-saving effect evaluation method for frequency conversion transformation of condensate pump of generator set |
| CN115306693A (en) * | 2022-08-04 | 2022-11-08 | 广州市百福电气设备有限公司 | Control method, device and system for monitoring water pump system |
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|---|---|---|---|---|
| CN105889053A (en) * | 2016-04-15 | 2016-08-24 | 国网天津市电力公司 | On-line monitoring method for efficiency of drainage pump of heat supply network of cogeneration unit |
| CN108019344A (en) * | 2017-12-04 | 2018-05-11 | 广西电网有限责任公司电力科学研究院 | A kind of motor-driven feed-water pump set Efficiency test method |
| CN108050053A (en) * | 2017-12-04 | 2018-05-18 | 广西电网有限责任公司电力科学研究院 | A kind of condensate pump Efficiency test method |
| CN110195708A (en) * | 2018-02-24 | 2019-09-03 | 焦作煤业(集团)有限责任公司电冶分公司 | A kind of circulating water pump in thermal power plant efficiency on-line monitoring method |
| CN111535873A (en) * | 2020-04-13 | 2020-08-14 | 浙江浙能技术研究院有限公司 | Method for online monitoring efficiency of steam turbine set of water feed pump based on historical data |
| CN111535873B (en) * | 2020-04-13 | 2022-03-25 | 浙江浙能技术研究院有限公司 | Method for online monitoring efficiency of steam turbine set of water feed pump based on historical data |
| CN112333021A (en) * | 2020-11-03 | 2021-02-05 | 华能国际电力股份有限公司南通电厂 | Real-time Chinese soft photon tablet alarm and digital display device for thermal power generating unit |
| CN113642199A (en) * | 2021-10-18 | 2021-11-12 | 德仕能源科技集团股份有限公司 | Artificial intelligence-based crude oil coagulation identification method and equipment |
| CN113642199B (en) * | 2021-10-18 | 2022-01-11 | 德仕能源科技集团股份有限公司 | Artificial intelligence-based crude oil coagulation identification method and equipment |
| CN114135478A (en) * | 2021-11-25 | 2022-03-04 | 国网河北能源技术服务有限公司 | Expected energy-saving effect evaluation method for frequency conversion transformation of condensate pump of generator set |
| CN114135478B (en) * | 2021-11-25 | 2024-02-13 | 国网河北能源技术服务有限公司 | Expected energy-saving effect evaluation method for variable frequency transformation of condensate pump of generator set |
| CN115306693A (en) * | 2022-08-04 | 2022-11-08 | 广州市百福电气设备有限公司 | Control method, device and system for monitoring water pump system |
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Application publication date: 20151028 |