CN105181741A - Multi-pipeline cleanliness online detection device - Google Patents
Multi-pipeline cleanliness online detection device Download PDFInfo
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- CN105181741A CN105181741A CN201510696362.3A CN201510696362A CN105181741A CN 105181741 A CN105181741 A CN 105181741A CN 201510696362 A CN201510696362 A CN 201510696362A CN 105181741 A CN105181741 A CN 105181741A
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- information acquisition
- cleanliness
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Abstract
The invention provides a multi-pipeline cleanliness online detection device. The multi-pipeline cleanliness online detection device comprises an information acquisition system, a DSC (Dynamic Stability Control) central computer system, a data storage system, a data transmission system and an intelligent interface display system, wherein the information acquisition system is connected with the DSC central computer system; the information acquisition system acquires each type of information of a heat exchanger and transmits the information to the DSC central computer system; the output end of the DSC central computer system is connected with the data storage system and the data transmission system; the output ends of the data storage system and the data transmission system are connected to the intelligent interface display system; the information acquisition system comprises a fixed information acquisition device and an online information acquisition device. By virtue of the multi-pipeline cleanliness online detection device provided by the invention, the cleanliness of heat exchanger units can be accurately analyzed and diagnosed in time. The multi-pipeline cleanliness online detection device provides accurate evidences to take measures to keep the heat exchanger units at a clean state for enterprises.
Description
Technical field
The invention belongs to the pick-up unit of multi-pipeline heat transmission equipment, specifically multi-pipeline cleanliness on-line measuring device.
Background technology
Multi-pipeline heat transmission equipment is one of commercial production visual plant, and the quality of heat transfer effect is the key index directly affecting work Business Economic Benefit.The leading indicator evaluating the working condition quality of heat interchanger is the height of its cleanliness factor or cleanliness.
In China, due to the problem of water quality, the phenomenon that incrustation scale and dirt exist in heat interchanger is very general, in order to scale removal needs heat exchanger to carry out manual cleaning or glueballs on-line cleaning (mainly for shell-tube type), generally artificial clean up after steam turbine use after a period of time in start, incrustation scale in heat exchange manifold, dirt will start constantly to thicken, hardening, rate of heat exchange declines rapidly, the operational efficiency of steam turbine declines and energy consumption constantly increases, and is all be in this situation in the steam turbine heat interchanger most of the time.Therefore can the clean condition of Timeliness coverage heat interchanger be very important.For the clean situation in use such as various heat exchangers, heat interchanger, condenser that is industrial and civilian aspect, all qualitatively judge by aspects such as experience, sensation or visions mostly, instead of carry out the result that quantizes, everyone judgement can produce different difference by the impact of many subjective aspect factors.To the heat interchanger adopting glueballs on-line cleaning, because too many absolutely number rubber ball cleaning system all adopts regularly and the method for operation of being interrupted, but its operational effect how, not have the equipment of quantification or instrument to carry out quantitative testing to it.
Summary of the invention
The present invention is multi-pipeline cleanliness on-line measuring devices, it is for moving based on thermodynamics, fluid mechanics, heat the online cleanliness pick-up unit of heat interchanger learned scheduling theory and determine, the cleanliness of heat exchanger can realize Real time displaying, allow user carry out detailed understanding to the operating condition of used equipment, thus provide important reference frame for determining that the optimal clean cycle lays the foundation, for the raising of the security of producing and production efficiency and energy-saving and emission-reduction
The present invention realizes above-mentioned purpose by the following technical solutions:
Multi-pipeline cleanliness on-line measuring device, it comprises information acquisition system, DSC central computer system, data-storage system, data communication system, intelligent interface display system.
Described information acquisition system is connected to DSC central computer system, and the various information of described information acquisition system heat collecting exchanger is also passed to DSC central computer system; The output terminal of described DSC central computer system is connected with data-storage system and data communication system system, described data-storage system and the output terminal of data transmission system are all connected to intelligent interface display system, described DSC central computer system transmits after carrying out analysis and calculation to the information of information acquisition system collection and stores, and is shown in real time by intelligent interface display system.
Described information acquisition system collection comprises fix information harvester and online information harvester; The material of described fix information harvester heat collecting exchanger, the wall thickness of pipe, the length of pipe, heat interchanging area parameter; Described online information harvester comprises cooling medium consumption pick-up unit, coolant temperature pick-up unit, pressure cooling medium pick-up unit, heat eliminating medium power current pick-up unit, cooled rate-of flow pick-up unit, cooled medium temperature pick-up unit, cooled pressure medium pick-up unit, and each device corresponds to the detection of relevant parameter.
In described DSC central computer system, the computing method of cleanliness are as follows:
The computing formula of the coefficient of heat transfer that heat interchanger is total is: K=K
0β
cβ
tβ
m
Can be obtained fom the above equation: β
c=K/(K
0β
tβ
m)
Can obtain: E
c=(β
c/ β
c0) × 100
E
c---current cleanliness %
β
c---current clean system
β
co---the cleanliness factor of design
K---the total heat transfer coefficient of current heat interchanger, W/ (m
2k)
K
0---basic heat transfer coefficient
β
t---cooling medium inlet temperature correction coefficient
β
m---heat exchanger tube pass material wall thickness correction factor
Preferably, described intelligent interface display system can connect printing device, prints the data of Real-Time Monitoring and storage.
In this device the principle of work of each system and mode of operation as follows.
1, information acquisition system
It is wide that information acquisition system of the present invention has information acquisition, information acquisition precision high, the data parameters adopted both to have comprised in system conventional coolant temperature, flow, pressure, power current, also comprise a series of data such as cooled rate-of flow, temperature, pressure, comprehensive data analysis can be carried out for central control system by comprehensive data acquisition and establish solid foundation and Data safeguard.
2, central control system
What central control system of the present invention adopted is that full-automatic DCS controls, can carry out comprehensively mass data data, the analyzing stored of system, modal interface simulation can be carried out, and heat interchanger running status can be monitored in real time by computer display interface, as long as set relevant systematic parameter, the data storing of system, analysis, transport process will complete automatically.
3, intelligent interface display system
Intelligent interface display system of the present invention can the involved series of parameters data of real-time online display heat interchanger, and major function has: the situation of Always Online" display pipeline cleanliness; The flow velocity of Always Online" display pipeline medium and the situation of flow; Show heat transmission equipment inlet and outlet pressure and crushing constantly; Show the change of turnover medium temperature constantly; Show heat eliminating medium power current and voltage condition constantly; Have hold function to the data of display, the holding time was more than 1 year; Aobvious various operating modes can be shown in a graphical form and be preserved; To the floor data run, there is teletransmission and printing function.
The present invention adopts technique scheme to have following beneficial effect:
1) multi-pipeline cleanliness pick-up unit of the present invention can realize analysis promptly and accurately, diagnose out the cleanliness of heat-exchange unit.Accurate foundation is provided for enterprise takes measures to keep heat-exchange unit to be in clean conditions for a long time in time.Avoid heat interchanger clean condition in use to rely on the aspects such as experience, sensation or vision to carry out perception to judge, instead of carry out the result that quantizes, because artificial judgement can produce different difference by the impact of being permitted many factors, the energy dissipation in operational process must be caused;
2) multi-pipeline cleanliness pick-up unit of the present invention adopts the remote information transmitting function module of DSC central control module and networking, and in conjunction with modern computer display interface, a large amount of data analyses and remote data transmission and control can be realized, there is automatic controlling level high, information transmits convenient, the features such as hommization control.
Accompanying drawing explanation
Fig. 1 is structural schematic block diagram of the present invention.
Fig. 2 is the structural schematic block diagram that online information acquisition system connects.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
Multi-pipeline cleanliness on-line measuring device as shown in Figure 1, it comprises information acquisition system, DSC central computer system, data-storage system, data communication system, intelligent interface display system.
Described information acquisition system is connected to DSC central computer system, and the various information of described information acquisition system heat collecting exchanger is also passed to DSC central computer system; The output terminal of described DSC central computer system is connected with data-storage system and data communication system system, described data-storage system and the output terminal of data transmission system are all connected to intelligent interface display system, described DSC central computer system transmits after carrying out analysis and calculation to the information of information acquisition system collection and stores, and is shown in real time by intelligent interface display system.
Information acquisition system collection as shown in Figure 2 comprises fix information harvester and online information harvester; The material of described fix information harvester heat collecting exchanger, the wall thickness of pipe, the length of pipe, heat interchanging area parameter; Described online information harvester comprises cooling medium consumption pick-up unit, coolant temperature pick-up unit, pressure cooling medium pick-up unit, heat eliminating medium power current pick-up unit, cooled rate-of flow pick-up unit, cooled medium temperature pick-up unit, cooled pressure medium pick-up unit, and each device corresponds to the detection of relevant parameter.
In described DSC central computer system, the computing method of cleanliness are as follows:
The computing formula of the coefficient of heat transfer that heat interchanger is total is: K=K
0β
cβ
tβ
m
Can be obtained fom the above equation: β
c=K/(K
0β
tβ
m)
Can obtain: E
c=(β
c/ β
c0) × 100
E
c---current cleanliness %
β
c---current clean system
β
co---the cleanliness factor of design
K---the total heat transfer coefficient of current heat interchanger, W/ (m
2k)
K
0---basic heat transfer coefficient
β
t---cooling medium inlet temperature correction coefficient
β
m---heat exchanger tube pass material wall thickness correction factor
Described intelligent interface display system connects printing device, prints the data of Real-Time Monitoring and storage.
In this device the principle of work of each system and mode of operation as follows.
1, information acquisition system
It is wide that information acquisition system of the present invention has information acquisition, information acquisition precision high, the data parameters adopted both to have comprised in system conventional coolant temperature, flow, pressure, power current, also comprise a series of data such as cooled rate-of flow, temperature, pressure, comprehensive data analysis can be carried out for central control system by comprehensive data acquisition and establish solid foundation and Data safeguard.
2, central control system
What central control system of the present invention adopted is that full-automatic DCS controls, can carry out comprehensively mass data data, the analyzing stored of system, modal interface simulation can be carried out, and heat interchanger running status can be monitored in real time by computer display interface, as long as set relevant systematic parameter, the data storing of system, analysis, transport process will complete automatically.
3, intelligent interface display system
Intelligent interface display system of the present invention can the involved series of parameters data of real-time online display heat interchanger, and major function has: the situation of Always Online" display pipeline cleanliness; The flow velocity of Always Online" display pipeline medium and the situation of flow; Show heat transmission equipment inlet and outlet pressure and crushing constantly; Show the change of turnover medium temperature constantly; Show heat eliminating medium power current and voltage condition constantly; Have hold function to the data of display, the holding time was more than 1 year; Aobvious various operating modes can be shown in a graphical form and be preserved; To the floor data run, there is teletransmission and printing function.
Claims (4)
1. multi-pipeline cleanliness on-line measuring device, it comprises information acquisition system, DSC central computer system, data-storage system, data communication system, intelligent interface display system, it is characterized in that: described information acquisition system is connected to DSC central computer system, the various information of described information acquisition system heat collecting exchanger is also passed to DSC central computer system; The output terminal of described DSC central computer system is connected with data-storage system and data communication system system, described data-storage system and the output terminal of data transmission system are all connected to intelligent interface display system, described DSC central computer system transmits after carrying out analysis and calculation to the information of information acquisition system collection and stores, and is shown in real time by intelligent interface display system.
2. multi-pipeline cleanliness according to claim 1, is characterized in that: described information acquisition system collection comprises fix information harvester and online information harvester; The material of described fix information harvester heat collecting exchanger, the wall thickness of pipe, the length of pipe, heat interchanging area parameter; Described online information harvester comprises cooling medium consumption pick-up unit, coolant temperature pick-up unit, pressure cooling medium pick-up unit, heat eliminating medium power current pick-up unit, cooled rate-of flow pick-up unit, cooled medium temperature pick-up unit, cooled pressure medium pick-up unit, and each device corresponds to the detection of relevant parameter.
3. multi-pipeline cleanliness according to claim 1, is characterized in that: in described DSC central computer system, the computing method of cleanliness are as follows:
The computing formula of the coefficient of heat transfer that heat interchanger is total is: K=K
0β
cβ
tβ
m
Can be obtained fom the above equation: β
c=K/(K
0β
tβ
m)
Can obtain: E
c=(β
c/ β
c0) × 100
E
c---current cleanliness %
β
c---current clean system
β
co---the cleanliness factor of design
K---the total heat transfer coefficient of current heat interchanger, W/ (m
2k)
K
0---basic heat transfer coefficient
β
t---cooling medium inlet temperature correction coefficient
β
m---heat exchanger tube pass material wall thickness correction factor.
4. multi-pipeline cleanliness according to claim 1, is characterized in that: described intelligent interface display system can connect printing device, prints the data of Real-Time Monitoring and storage.
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|---|---|---|---|
| CN201510696362.3A CN105181741A (en) | 2015-10-26 | 2015-10-26 | Multi-pipeline cleanliness online detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510696362.3A CN105181741A (en) | 2015-10-26 | 2015-10-26 | Multi-pipeline cleanliness online detection device |
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|---|---|
| CN105181741A true CN105181741A (en) | 2015-12-23 |
Family
ID=54903968
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|---|---|---|---|
| CN201510696362.3A Pending CN105181741A (en) | 2015-10-26 | 2015-10-26 | Multi-pipeline cleanliness online detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844399A (en) * | 2018-07-17 | 2018-11-20 | 中山嘉明电力有限公司 | Condenser rubber ball cleaning automatic start-stop method based on DCS |
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|---|---|---|---|---|
| JPH04294265A (en) * | 1990-12-03 | 1992-10-19 | Babcock & Wilcox Co:The | Furnace cleanliness monitor for highly reflective ash |
| CN1477368A (en) * | 2003-06-30 | 2004-02-25 | 樊绍胜 | Method for on-line measuring dirty extent of condenser and its device |
| JP2005337523A (en) * | 2004-05-24 | 2005-12-08 | Chubu Electric Power Co Inc | Method and apparatus for identifying air suction site of condenser |
| CN102338568A (en) * | 2011-09-20 | 2012-02-01 | 河北省电力建设调整试验所 | Online monitoring system and method for performance of condenser in power plant based on cleanness coefficient index |
| CN103335537A (en) * | 2013-06-15 | 2013-10-02 | 国家电网公司 | Method for on-line monitoring real-time operation cleanness factor of condenser |
| CN103808625A (en) * | 2014-02-28 | 2014-05-21 | 宁波德业科技集团有限公司 | Heat exchanger cleanliness detection method |
| CN103901068A (en) * | 2014-04-18 | 2014-07-02 | 国家电网公司 | Method for monitoring steam turbine low-pressure cylinder exhaust steam enthalpy value online |
| CN205157477U (en) * | 2015-10-26 | 2016-04-13 | 张伟 | Multitube way cleanliness on -line measuring device |
-
2015
- 2015-10-26 CN CN201510696362.3A patent/CN105181741A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04294265A (en) * | 1990-12-03 | 1992-10-19 | Babcock & Wilcox Co:The | Furnace cleanliness monitor for highly reflective ash |
| CN1477368A (en) * | 2003-06-30 | 2004-02-25 | 樊绍胜 | Method for on-line measuring dirty extent of condenser and its device |
| JP2005337523A (en) * | 2004-05-24 | 2005-12-08 | Chubu Electric Power Co Inc | Method and apparatus for identifying air suction site of condenser |
| CN102338568A (en) * | 2011-09-20 | 2012-02-01 | 河北省电力建设调整试验所 | Online monitoring system and method for performance of condenser in power plant based on cleanness coefficient index |
| CN103335537A (en) * | 2013-06-15 | 2013-10-02 | 国家电网公司 | Method for on-line monitoring real-time operation cleanness factor of condenser |
| CN103808625A (en) * | 2014-02-28 | 2014-05-21 | 宁波德业科技集团有限公司 | Heat exchanger cleanliness detection method |
| CN103901068A (en) * | 2014-04-18 | 2014-07-02 | 国家电网公司 | Method for monitoring steam turbine low-pressure cylinder exhaust steam enthalpy value online |
| CN205157477U (en) * | 2015-10-26 | 2016-04-13 | 张伟 | Multitube way cleanliness on -line measuring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844399A (en) * | 2018-07-17 | 2018-11-20 | 中山嘉明电力有限公司 | Condenser rubber ball cleaning automatic start-stop method based on DCS |
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Application publication date: 20151223 |