CN102780331A - Intelligent compound control system for thermal keying installation for magnetic yoke of rotor of large hydrogenerator - Google Patents

Intelligent compound control system for thermal keying installation for magnetic yoke of rotor of large hydrogenerator Download PDF

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CN102780331A
CN102780331A CN2010106009622A CN201010600962A CN102780331A CN 102780331 A CN102780331 A CN 102780331A CN 2010106009622 A CN2010106009622 A CN 2010106009622A CN 201010600962 A CN201010600962 A CN 201010600962A CN 102780331 A CN102780331 A CN 102780331A
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magnetic yoke
rtd
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CN102780331B (en
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薛荆岩
刘丽英
邢邵谦
薛畅
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Heilongjiang University
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Heilongjiang University
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Abstract

The invention aims at providing an intelligent compound control system for thermal keying installation for a magnetic yoke of a rotor of a large hydrogenerator, which automatically executes heating process stipulations so as to realize a full-automatic thermal keying installation process. A thermal keying installation device for the magnetic yoke of the rotor of a large hydrogenerator is composed of a heat-insulating shell, a magnetic yoke assembly, a magnetic yoke key and a rotor support arm assembly, wherein the heat-insulating shell is connected with the magnetic yoke assembly, the magnetic yoke assembly is connected with the magnetic yoke key, and the magnetic yoke key is connected with the rotor support arm assembly. The intelligent compound control system for thermal keying installation for the magnetic yoke of the rotor of the large hydrogenerator provided by the invention is composed of an input system, a small DCS (distributed control system), an air heater, a water spray electromagnetic valve and an electric bell, wherein the input system is connected with the small DCS system, and the small DCS system is connected with the air heater, the water spray electromagnetic valve and the electric bell. Under the control of the small DCS system, the 'temperature rise speed' and 'clearance increment' specified by the heating process are automatically executed, thus changing the current situations of manual operation of a heating process and manual measurement using measuring tools, and realizing the full-automatic thermal keying installation process.

Description

The hot keystroke of large-sized water turbine generator rotor yoke is installed the Intelligent Composite control system
(1) technical field
The present invention relates to hydraulic power generation technology, is exactly that the hot keystroke of a kind of large-sized water turbine generator rotor yoke is installed intelligence control system specifically.
(2) background technology
The root diameter of large-sized water turbine generator is bigger, and weight can reach the hundreds of ton.Because of receiving the restriction of transportation condition, large components such as epitrochanterian yoke all need to install in the building site.Yoke is made up of the thick steel disc of several 3--4mm, has concentrated the weight of generator amature more than 2/3, so large-sized water turbine generator is in operation, the centrifugal force that yoke produced is huge, can reach nearly ten thousand tons.So when yoke is installed, adopt the method for rim keying to give yoke and rotor support arm one pretightning force in advance, make the radially swelling amount of yoke and rotor support arm reach the needs that can satisfy unit safety operation.Rim keying is divided into cold keystroke and two steps of hot keystroke.
The cold keystroke of yoke: main purpose is an adjustment yoke circularity, to reduce the rounding workload, can obtain tightly to measure accurately when making hot keystroke; Earlier with surveying the circularity that circle frame and amesdial record the yoke cylindrical; According to yoke circularity record; Squeeze into the magnet yoke key in several zones of radial direction (being recessed into) less than normal earlier,, use the 10kg sledgehammer then evenly, symmetrically all magnet yoke key is urgent so as to the adjustment yoke circularity and the degree of eccentricity; Until continuous three hammers, the key 0.5--1mm that only goes down is qualified.Notice in the urgent process that measuring rotor circularity changes, and adjusts at any time; Depth of drive when each key upper end exposed length can satisfy hot keystroke is drawn a horizontal line in the side of each pairing key with scriber, as the start line of hot keystroke.
The hot keystroke of yoke: the centrifugal force during according to selected separating rate (be generally normal speed 1.4 times), calculate yoke radial deformation increment, thus the temperature difference t of the yoke of calculating and rotor support arm.The heating yoke expands it, on the basis of cold keystroke, under hot state, squeezes into the pretension amount that equates with its radial deformation increment again, so as to offsetting the radial deformation increment of yoke in the unit operation.The temperature difference of the relative rotor support arm of yoke is calculated: Δ t=ζ/r.a, ζ--the one-sided tight amount of-yoke (gap increment ζ), mm; R---yoke radius of gravity center, mm; The a---coefficient of linear expansion.The magnet yoke key depth of drive calculates: L=ζ/j, ζ--the one-sided tight amount of-yoke (gap increment ζ), mm; J---magnet yoke key slope gets 1/200 usually.Heating means have copper loss method, iron loss method and electrothermal way etc.; Be that programming rate is too fast according to experience manual operation in the past heating process on control method, then make yoke internal and external temperature when expanded by heating uneven and produce internal stress, programming rate is slow excessively, then makes the cycle oversize, prolongs job schedule; Be to adopt the measurer hand dipping on the method for measurement clearance increment, error is bigger.
(3) summary of the invention
The object of the present invention is to provide a kind of present situation that automatically performs " programming rate " and " gap increment ", the change manual operation heating process of heating process regulation and adopt the measurer hand dipping, make the hot keystroke of the full-automatic large-sized water turbine generator rotor yoke of hot keystroke installation process that intelligence control system is installed.
The objective of the invention is to realize like this: the hot keystroke of large-sized water turbine generator rotor yoke is installed; Form by insulation shell 8, yoke assembly 30, magnet yoke key 13 and rotor support arm assembly 31; Insulation shell 8 connects yoke assembly 30; Yoke assembly 30 connects magnet yoke key 13, and magnet yoke key 13 connects rotor support arm assembly 31.
The hot keystroke of large-sized water turbine generator rotor yoke of the present invention is installed also has following technical characterictic:
(1) described insulation shell 8 comprises alumina silicate heat-insulation layer 7, industrial furnace thermometric RTD 9, air supply duct 10 and air-heater 11, and alumina silicate heat-insulation layer 7 is positioned at insulation shell 8 inside, and air-heater 11 connects air supply duct 10, and air supply duct 10 connects insulation shell 8.
(2) described yoke assembly 30 comprises yoke 12, laser range finder mounting panel 6 and laser range finder 5, and yoke 12 connects laser range finder mounting panel 6, and laser range finder mounting panel 6 connects laser range finder 5.
(3) described rotor support arm assembly 31 comprises rotor support arm 14, laser-bounce plate 4, rotor support arm thermometric RTD 2, water pipeline 3 and shower nozzle 15; Rotor support arm 14 connects laser-bounce plate 4; Rotor support arm thermometric RTD 2 is arranged on rotor support arm 14 surfaces; Water pipeline 3 connects shower nozzle 15, and water pipeline 3 is arranged on rotor support arm 14 outsides with shower nozzle 15.
The hot keystroke of large-sized water turbine generator rotor yoke of the present invention is installed intelligence control system; It is made up of input system 32, small-sized DCS system 18, air-heater 11, water spray electromagnetically operated valve 16 and electric bell 17; Input system 32 connects small-sized DCS system 18, and small-sized DCS system 18 connects air-heaters 11, water spray electromagnetically operated valve 16 and electric bell 17.
The hot keystroke of large-sized water turbine generator rotor yoke of the present invention is installed intelligence control system and is also had following technical characterictic:
(1) described input system 32 comprises industrial furnace thermometric RTD 9, ambient temperature thermometric RTD 1, rotor support arm thermometric RTD 2 and laser range finder 5, and industrial furnace thermometric RTD 9, ambient temperature thermometric RTD 1, rotor support arm thermometric RTD 2 and laser range finder 5 are connected small-sized DCS system 18 respectively.
(2) described small-sized DCS system (18) is made up of RTD input template (19), special RTD input template (35), analogue input template (21), controller internal fieldbus (20), switching value output template (22), special key amount output template (23), three-phase solid-state relay (24), solid-state relay (25), master controller plate (26), industrial computer (27) and printer (28); RTD input template (19), special RTD input template (35), analogue input template (21) connect controller internal fieldbus (20) respectively; Controller internal fieldbus (20) connects switching value output template (22), special key amount output template (23) and master controller plate (26) respectively; Switching value output template (22) connects three-phase solid-state relay (24); Special key amount output template (23) connects solid-state relay (25); Master controller plate (26) connects industrial computer (27), and industrial computer (27) connects printer (28).
(3) systems soft ware of described small-sized DCS system (18) utilizes systems soft ware can develop special-purpose software by I/O configuration software, control strategy configuration software, alert event configuration software, Report Server Management configuration software, historical data management configuration software, picture and browse configuration software, type C language configuration software etc. and form.
(4) special-purpose software of described small-sized DCS system (18) is by manipulating picture and the Intelligent Composite control algolithm is formed.Manipulating picture comprises: a. setup parameter picture; B. display parameters summary table screen; C. the dynamically main parameter picture of looking; D. dynamically overlook the parameter picture.The Intelligent Composite control algolithm comprises: a. stores heating process, i.e. storage is set " programming rate ", set " gap increment ".B. adopt the three-position type control algolithm that " mean temperature difference " heated up according to the setting " programming rate " of storage heating process.C. adopt two formula control algolithms to make " rotor support arm mean temperature " be constantly equal to " ambient temperature ".D. when " gap increment " was equal to or greater than setting " gap increment ", end-of-job began hot keystroke.
The hot keystroke of large-sized water turbine generator rotor yoke of the present invention is installed intelligence control system; Model and working experience in the past according to various high-rating generators; Store a plurality of heating processes, under the control of small-sized DCS, automatically perform " programming rate " and " gap increment " of heating process regulation; Changed manual operation heating process and the present situation that adopts the measurer hand dipping, made hot keystroke installation process full-automatic.
(4) description of drawings
Fig. 1 is the main scheme of installation of looking of the present invention;
Fig. 2 overlooks scheme of installation for the present invention;
Fig. 3 is small-sized DCS systematic schematic diagram;
Fig. 4 is picture 1 (setup parameter picture) sketch map;
Fig. 5 is picture 2 (display parameters summary table screen) sketch map;
Fig. 6 is picture 3 (the dynamically main parameter picture of a looking) sketch map;
Fig. 7 is picture 4 (dynamically overlooking a parameter picture) sketch map.
(5) embodiment
For example the present invention is described further below in conjunction with accompanying drawing.
Embodiment 1; In conjunction with Fig. 1, Fig. 2, Fig. 3; The hot keystroke of large-sized water turbine generator rotor yoke of the present invention is installed, and is made up of insulation shell (8), yoke assembly (30), magnet yoke key (13) and rotor support arm assembly (31), and insulation shell (8) connects yoke assembly (30); Yoke assembly (30) connects magnet yoke key (13), and magnet yoke key (13) connects rotor support arm assembly (31).
The hot keystroke of large-sized water turbine generator rotor yoke of the present invention is installed, and also has following technical characterictic:
Described insulation shell (8) comprises alumina silicate heat-insulation layer (7), industrial furnace thermometric RTD (9), air supply duct (10) and air-heater (11); Alumina silicate heat-insulation layer (7) is positioned at insulation shell (8) inside; Air-heater (11) connects air supply duct (10), and air supply duct (10) connects insulation shell (8).
Described yoke assembly (30) comprises yoke (12), laser range finder mounting panel (6) and laser range finder (5), and yoke (12) connects laser range finder mounting panel (6), and laser range finder mounting panel (6) connects laser range finder (5).
Described rotor support arm assembly (31) comprises rotor support arm (14), laser-bounce plate (4), rotor support arm thermometric RTD (2), water pipeline (3) and shower nozzle (15); Rotor support arm (14) connects laser-bounce plate (4); Rotor support arm thermometric RTD (2) is arranged on rotor support arm (14) surface; Water pipeline (3) connects shower nozzle (15), and water pipeline (3) and shower nozzle (15) are arranged on rotor support arm (14) outside.
The hot keystroke of large-sized water turbine generator rotor yoke of the present invention is installed intelligence control system; It is made up of input system (32), small-sized DCS system (18), air-heater (11), water spray electromagnetically operated valve (16) and electric bell (17); Input system (32) connects small-sized DCS system (18), and small-sized DCS system (18) connects air-heater (11), water spray electromagnetically operated valve (16) and electric bell (17).
The hot keystroke of large-sized water turbine generator rotor yoke of the present invention is installed intelligence control system, also has following technical characterictic:
Described input system (32) comprises industrial furnace thermometric RTD (9), ambient temperature thermometric RTD (1), rotor support arm thermometric RTD (2) and laser range finder (5), and industrial furnace thermometric RTD (9), ambient temperature thermometric RTD (1), rotor support arm thermometric RTD (2) and laser range finder (5) are connected small-sized DCS system (18) respectively.
Described small-sized DCS system (18) is made up of RTD input template (19), special RTD input template (35), analogue input template (21), controller internal fieldbus (20), switching value output template (22), special key amount output template (23), three-phase solid-state relay (24), solid-state relay (25), master controller plate (26), industrial computer (27) and printer (28); RTD input template (19), special RTD input template (35), analogue input template (21) connect controller internal fieldbus (20) respectively; Controller internal fieldbus (20) connects switching value output template (22), special key amount output template (23) and master controller plate (26) respectively; Switching value output template (22) connects three-phase solid-state relay (24); Special key amount output template (23) connects solid-state relay (25); Master controller plate (26) connects industrial computer (27), and industrial computer (27) connects printer (28).
The systems soft ware of described small-sized DCS system (18) is by I/O configuration software, control strategy configuration software, alert event configuration software, Report Server Management configuration software, historical data management configuration software, picture and browse configuration software, type C language configuration software etc. and form, and utilizes the systemic software development special-purpose software.
The special-purpose software of described small-sized DCS system (18) is by manipulating picture and the Intelligent Composite control algolithm is formed; Manipulating picture comprises: a. setup parameter picture; B. display parameters summary table screen; C. the dynamically main parameter picture of looking; D. dynamically overlook the parameter picture.The Intelligent Composite control algolithm comprises: a. stores heating process, i.e. storage is set " programming rate ", set " gap increment "; B., adopt the three-position type control algolithm that " mean temperature difference " heated up according to the setting " programming rate " of storage heating process; C. adopt two formula control algolithms to make " rotor support arm mean temperature " be constantly equal to " ambient temperature "; D. when " gap increment " was equal to or greater than setting " gap increment ", end-of-job began hot keystroke.
Embodiment 2; In conjunction with Fig. 1-Fig. 7, the present invention is made up of insulation shell (8), alumina silicate heat-insulation layer (7), air-heater (11), air supply duct (10), industrial furnace thermometric RTD (9), rotor support arm thermometric RTD (2), ambient temperature thermometric RTD (1), water spray electromagnetically operated valve (16), water pipeline (3), shower nozzle (15), laser range finder (5), laser range finder mounting panel (6), laser-bounce plate (4), electric bell (17), small-sized DCS system (18) and special-purpose software.The concrete course of work is described below:
1, the course of work of hardware under the special-purpose software effect: form industrial furnace to the closed heating of yoke (12) by insulation shell (8), alumina silicate heat-insulation layer (7), air-heater (11), air supply duct (10); Temperature is recorded by many industrial furnace thermometric RTDs (9) (0-0# to 0-7#, 1-0# to 1-7#..........n-0# are to n-7#) in its stove; Become a plurality of RTDs (Pt100) input templates (19) that the standard resistor signal gets into small-sized DCS system (18) respectively (0#-n#); Under the control of master controller plate (26), become a plurality of digital signaling zeros--400 ℃ (0-0# to 0-7#, 1-0# to 1-7#..........n-0# are to n-7#); With a plurality of digital signaling zeros--400 ℃ (0-0# to 0-7#, 1-0# to 1-7#..........n-0# are to n-7#) average, and calculate " mean temperature in the stove " (representing the yoke temperature).Ambient temperature thermometric RTD (1) and a plurality of rotor support arm thermometric RTDs (2) (1#--4# number) become an independent RTD (Pt 100) input templates (35) that the standard resistor signal gets into small-sized DCS system (18) respectively; Under the control of " master controller plate " (26), become a plurality of digital signaling zeros--400 ℃, i.e. " ambient temperature " and a plurality of " rotor support arm temperature " (1#--4# numbers); A plurality of " rotor support arm temperature " (1#--4# numbers) averaged obtain " rotor support arm mean temperature " (representing rotor support arm temperature)." mean temperature in the stove " deducts " rotor support arm mean temperature " and obtains " mean temperature difference ", represents yoke (12) the temperature difference t between the rotor support arm (14) relatively.Yoke (12) is recorded by laser range finder (5) with the gap of rotor support arm (14); Become independent analogue input template (21) that standard 4--20mA signal gets into small-sized DCS system (18) (4--20mA), under the control of master controller plate (26), become digital signal 50mm--350mm; When start just; Be that the gap that records when temperature is for ambient temperature in the industrial furnace is " ambient temperature gap " ζ 1; The gap that records in the industrial furnace temperature-rise period is " intensification gap " ζ 2; " intensification gap " ζ 2 deducts " ambient temperature gap " ζ 1 and obtains " gap increment " ζ (representing the one-sided tight amount ζ of yoke), both ζ=ζ 2-ζ 1.The a plurality of switching value output templates of master controller plate (26) control (22) (0#--n#) are exported high level or low level; These a plurality of high level or low level are controlled " leading to " or " breaking " of a plurality of three-phase solid-state relays (24) (0-0# to 0-7#, 1-0# to 1-7#..........n-0# are to n-7#); This " leads to " or " breaking " makes three-phase AC 380V power supply connect with a plurality of air-heaters (11) (0-0# to 0-7#, 1-0# to 1-7#..........n-0# are to n-7#) or break off, and both a plurality of " air-heater " (11) (0-0# to 0-7#, 1-0# to 1-7#..........n-0# are to n-7#) moves or stop." master controller plate " (26) the independent switching value output templates of control (23) output high level or low level; " lead to " or " break " of the high level of two passages or low level two solid-state relays of control (25), this two " leading to " or " breaking " controlled the connection or the disconnection of connecting of AC 220V power supply and the electromagnetically operated valve (16) of spraying water or disconnection and electric bell (17).
2, special-purpose software and control algolithm: utilize " I/O configuration software ", " control strategy configuration software ", " alert event configuration software ", " Report Server Management configuration software ", " historical data management configuration software ", " picture and browse configuration software ", " type C language configuration software " to wait the systems soft ware of composition to develop the special-purpose software of the hot keystroke installation of large-sized water turbine generator rotor yoke intelligence control system.At first use " picture and browse configuration software " and work out out " picture 1: set three number picture (Fig. 4) ", " picture 2: display parameters summary table screen (Fig. 5) ", " picture 3: the dynamically main parameter picture (Fig. 6) of looking ", " picture 4: dynamically overlook parameter picture (Fig. 7) ".Use " I/O configuration software " to all RTD Pt100 inputs, 4--20mA input carrying out A/D conversion and be quantified as 0--400 ℃ and 50mm--350mm, the effective or low level of high level is carried out in all switching value output effectively confirm.Using " control strategy configuration software ", " class C language configuration software ", " alert event configuration software ", " Report Server Management configuration software ", " historical data management configuration software " and " picture 1: set three number picture (Fig. 4) ", " picture 2: display parameters summary table screen (Fig. 5) ", " picture 3: dynamically the master looks parameter picture (Fig. 6) ", " picture 4: dynamically overlook parameter picture (Fig. 7) " is linked; Picture 1 is had set three number function, make picture 1, picture 2, picture 3, picture 4 have functions such as various dynamic demonstrations, picture switching and printout then.Application " control strategy configuration software " and " type C language configuration software " are worked out various control algolithms: a. storage heating process, i.e. programming rate, setting gap increment are set in storage; B. adopt the three-position type control algolithm that " mean temperature difference " heated up according to the setting " programming rate " of storage heating process, i.e. all air-heaters 11 half half no power 1/2ON of energising or all air-heaters 11 OFF that all cuts off the power supply that all switches in ON or the air-heater 11; C. adopt two formula control algolithms to make " rotor support arm mean temperature " be constantly equal to " ambient temperature " basically; Promptly " rotor support arm mean temperature " is when being higher than " ambient temperature "; " water spray electromagnetically operated valve " (16) energising ON; Utilize water pipeline (3) and shower nozzle (15) that rotor support arm (14) is carried out cold water cooling, " rotor support arm mean temperature " when being lower than " ambient temperature ", " water spray electromagnetically operated valve " (16) energising OFF; D. when " gap increment " equaled greater than " setting the gap increment ", all " air-heaters " are OFF all, all " water spray electromagnetically operated valve " OFF, and " electric bell " ON, end-of-job begins hot keystroke.
3, manipulate method: all pictures all adopt the touch-sensitive display operation, and when filling in numeral, it is selective to jump out numeric keypad on the screen.After the start, at first get into " picture 1: set three number picture (Fig. 4) ":, store " the setting programming rate " and " setting the gap increment " of a plurality of heating processes (0#--n#) according to the model and the working experience in the past of various high-rating generators; " programming rate " can not be excessive, also can not be too small, and excessive yoke (12) internal and external temperature when expanded by heating that then makes is uneven and produce internal stress, too smallly then makes the cycle oversize, prolongs job schedule; " gap increment " set according to actual needs and got final product; In " selection " hurdle, confirm certain heating process (at every turn can only select); By " beginning " key, promptly begin to carry out confirmed certain heating process; By " time-out " key, stop to carry out confirmed certain heating process; By " returning " key, not only stop to carry out confirmed certain heating process, and can in " selection " hurdle, select once more again and confirm certain heating process (at every turn can only select), promptly change a heating process; By " printing " key, printer output whole " picture 1: set three number picture (Fig. 4) " is in order to staying shelves; By " picture 2 " key, get in " picture 2: display parameters summary table screen (Fig. 5) "; By " picture 3 " key, get into " picture 3: the dynamically main parameter picture (Fig. 6) of looking ", press " picture 4 " key, get in " picture 4: dynamically overlook parameter picture (Fig. 7) ".In " picture 2: display parameters summary table screen (Fig. 5) ": the temperature that shows all industrial furnace thermometric thermal resistances (9) (0-0# to 0-7#, 1-0# to 1-7#..........n-0# are to n-7#); Show " mean temperature in the stove "; The temperature that shows all rotor support arm thermometric thermal resistances (2) (1#--4# number); Show " rotor support arm mean temperature "; Show " ambient temperature "; Show " mean temperature difference " (mean temperature--rotor support arm mean temperature=mean temperature difference in the stove); Show " gap increment "; Show " air-heater state: OF, 1/2ON "; Show " water spray state: OF, ON "; Show " heating process is dynamically schemed "; By " printing " key, printer output whole " picture 2: display parameters summary table screen (Fig. 5) ", in order to staying shelves; By " picture 1 " key, get into " picture 1: set three number picture (Fig. 4) "; By " picture 3 " key, get into " picture 3: the dynamically main parameter picture (Fig. 6) of looking "; By " picture 4 " key, get in " picture 4: dynamically overlook parameter picture (Fig. 7) ".In " picture 3: the dynamically main parameter picture (Fig. 6) of looking ": show " mean temperature in the stove "; Show " rotor support arm mean temperature "; Show " ambient temperature "; Show " air-heater state: OF, 1/2ON, ON "; Show " water spray state: OF, ON "; Show " gap increment "; By " printing " key, printer output whole " picture 3: the dynamically main parameter picture (Fig. 6) of looking " is in order to staying shelves; By " picture 1 " key, get into " picture 1: set three number picture (Fig. 4) "; By " picture 2 " key, get in " picture 2: display parameters summary table screen (Fig. 5) "; By " picture 4 " key, get in " picture 4: dynamically overlook parameter picture (Fig. 7) ".In " picture 4: dynamically overlook parameter picture (Fig. 7) ": the temperature that shows all industrial furnace thermometric thermal resistances (9) (0-0# to 0-7#, 1-0# to 1-7#..........n-0# are to n-7#); Show " air-heater state: OF, 1/2ON, ON "; Show " water spray state: OF, ON "; Show " gap increment "; By " printing " key, printer output whole " picture 4: dynamically overlook parameter picture (Fig. 7) " is in order to staying shelves; By " picture 1 " key, get into " picture 1: set three number picture (Fig. 4) "; By " picture 2 " key, get in " picture 2: display parameters summary table screen (Fig. 5) "; By " picture 3 " key, get into " picture 3: the dynamically main parameter picture (Fig. 6) of looking ".On " picture 1: set three number pictures (Fig. 4) ", " picture 2: display parameters summary table screen (Fig. 5) ", " picture 3: the dynamically main parameter picture (Fig. 6) of looking " and " picture 4: dynamically overlook parameter picture (Fig. 7) ", all show dynamic clock " during xx xx divide xx second " in real time.When " gap increment " equaled greater than " setting the gap increment ", all " air-heaters " are OFF all, all " water spray electromagnetically operated valve " OFF, and " electric bell " ON, end-of-job begins hot keystroke.
In a word,, store a plurality of heating processes (0#--n#), under the control of small-sized DCS, automatically perform " programming rate " and " gap increment " of heating process regulation according to the model and the working experience in the past of various high-rating generators; Changed manual operation heating process and the present situation that adopts the measurer hand dipping, made hot keystroke installation process full-automatic.

Claims (5)

1. the hot keystroke of large-sized water turbine generator rotor yoke is installed the Intelligent Composite control system; It is made up of input system (32), small-sized DCS system (18), air-heater (11), water spray electromagnetically operated valve (16) and electric bell (17); It is characterized in that: input system (32) connects small-sized DCS system (18), and small-sized DCS system (18) connects air-heater (11), water spray electromagnetically operated valve (16) and electric bell (17).
2. the hot keystroke of a kind of large-sized water turbine generator rotor yoke according to claim 1 is installed the Intelligent Composite control system; It is characterized in that: described input system (32) comprises industrial furnace thermometric RTD (9), ambient temperature thermometric RTD (1), rotor support arm thermometric RTD (2) and laser range finder (5), and industrial furnace thermometric RTD (9), ambient temperature thermometric RTD (1), rotor support arm thermometric RTD (2) and laser range finder (5) are connected small-sized DCS system (18) respectively.
3. the hot keystroke of a kind of large-sized water turbine generator rotor yoke according to claim 1 is installed the Intelligent Composite control system; It is characterized in that: described small-sized DCS system (18) is made up of RTD input template (19), special RTD input template (35), analogue input template (21), controller internal fieldbus (20), switching value output template (22), special key amount output template (23), three-phase solid-state relay (24), solid-state relay (25), master controller plate (26), industrial computer (27) and printer (28); RTD input template (19), special RTD input template (35), analogue input template (21) connect controller internal fieldbus (20) respectively; Controller internal fieldbus (20) connects switching value output template (22), special key amount output template (23) and master controller plate (26) respectively; Switching value output template (22) connects three-phase solid-state relay (24); Special key amount output template (23) connects solid-state relay (25); Master controller plate (26) connects industrial computer (27), and industrial computer (27) connects printer (28).
4. the hot keystroke of a kind of large-sized water turbine generator rotor yoke according to claim 1 is installed intelligence control system; It is characterized in that: the systems soft ware of described small-sized DCS system (18) is by I/O configuration software, control strategy configuration software, alert event configuration software, Report Server Management configuration software, historical data management configuration software, picture and browse configuration software, type C language configuration software etc. and form, and utilizes the systemic software development special-purpose software.
5. the hot keystroke of a kind of large-sized water turbine generator rotor yoke according to claim 1 is installed intelligence control system, it is characterized in that: the special-purpose software of described small-sized DCS system (18) is by manipulating picture and the Intelligent Composite control algolithm is formed; Manipulating picture comprises: a. setup parameter picture; B. display parameters summary table screen; C. the dynamically main parameter picture of looking; D. dynamically overlook the parameter picture; The Intelligent Composite control algolithm comprises: a. stores heating process, i.e. storage is set " programming rate ", set " gap increment "; B. adopt the three-position type control algolithm that " mean temperature difference " heated up according to the setting " programming rate " of storage heating process; C. adopt two formula control algolithms to make " rotor support arm mean temperature " be constantly equal to " ambient temperature "; D. when " gap increment " equaled greater than setting " gap increment ", end-of-job began hot keystroke.
CN201010600962.2A 2009-06-05 2009-06-05 Intelligent compound control system for thermal keying installation for magnetic yoke of rotor of large hydrogenerator Expired - Fee Related CN102780331B (en)

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CN105262297A (en) * 2015-11-09 2016-01-20 黑龙江瀚锋电热机电设备制造有限公司 A water turbine rotor magnet yoke heating device and a method employing the device to heat a magnet yoke
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