CN207319079U - Intelligent micro-positive pressure of enclosed busbar control system - Google Patents
Intelligent micro-positive pressure of enclosed busbar control system Download PDFInfo
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- CN207319079U CN207319079U CN201721360831.5U CN201721360831U CN207319079U CN 207319079 U CN207319079 U CN 207319079U CN 201721360831 U CN201721360831 U CN 201721360831U CN 207319079 U CN207319079 U CN 207319079U
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Abstract
Electric power power transmission and transformation electric power system is the utility model is related to, i.e., intelligent micro-positive pressure of enclosed busbar control system.It includes three-phase enclosed busbar A, B, C and is connected thereto the dry gas pipeline communicated, and dry gas pipeline is equipped with air source inlet and exhaust outlet, including control system, it is characterised in that has data collector respectively per phase enclosed busbar both sides；Cooling driers, filter, dryer system are connected with turn on dry gas pipeline airintake direction；The dryer system is to be connected with air-heater, absorption type dryer, OMD film driers a kind of or combination.The system can realize with gas repeats itself in enclosed busbar, reach automatic compensation, drying, the function of heating, overcome waste caused by a large amount of ventilations, having saved electric energy reduces discharge.The system is acquired the pressure in enclosed busbar, humidity, temperature data by the data collector of multiple spot, and wireless transmission band turn-key system carries out operational analysis, has reached accurate tracking and regulation and control in real time.
Description
Technical field
The utility model is related to electric power power transmission and transformation system and the low dew point micro-positive pressure compressed air of drying in need place,
I.e. intelligent micro-positive pressure of enclosed busbar control system.
Background technology
In the prior art, micro-positive pressure of enclosed busbar equipment is single independent mini-plant, by people's brakeless in order to control
Change can be sayed.The source of the gas of micro-positive pressure equipment is single not to be may be selected, and air pump is in long-term work state, not energy conservation and environmental protection.Micro-positive pressure is set
Standby output gas flow of gas, pressure can not realize tracing control, can not to more demanding with the leakage of gas system and external environment condition
Automatic tracking adjustment.Existing equipment cannot detect the dew point of enclosed busbar internal gas, can not adjust dew point on request.At present
Micro-positive pressure equipment can not detect environment temperature, so cannot change the dew point of output gas according to the change of temperature, cause
In a large amount of waste of energy of dehumidifying.
Utility model content
The purpose of this utility model is to provide a kind of intelligent micro-positive pressure of enclosed busbar control system for above-mentioned deficiency,
The functions such as dehumidifying, drying, discharge guarantor can be automatically selected according to the change of the factors such as the temperature, humidity, height above sea level of site environment by realizing
Card output gas meets the requirement of service object.
The technical solution of the utility model is：Intelligent micro-positive pressure of enclosed busbar control system, including three-phase closing
Busbar A, B, C and the dry gas pipeline communicated being connected thereto, dry gas pipeline is equipped with air source inlet and exhaust outlet, including
Control system, it is characterised in that have data collector respectively per phase enclosed busbar both sides；On dry gas pipeline airintake direction according to
It is secondary to be connected with cooling driers, filter, dryer system；The dryer system for be connected with air-heater, absorption type dryer,
A kind of or combination in OMD film driers.Can also each be used alone, or air-heater is used in series with OMD film driers, or
Air-heater is used in series with absorption type dryer, combines not limited to this.
In such scheme,
Data collector is radio temperature sensor, pressure sensor, humidity sensor.
Air-heater, absorption type dryer, the drying of OMD films are to be connected in parallel.
Dry gas pipeline is interior circulation loop.
Dry gas pipeline is equipped with circulation back pressure sensor, circulation pressurization air pump, realizes system automatic inflating device.
Filter is the S type filters, p-type filter, Q type filters of series connection.
Including pressure control unit, pressure control unit mainly has equipment internal pressure control section and bus-bar system pressure
Control section forms.
Dry gas pipeline is interior circulation loop, is communicated with enclosed busbar head and the tail, it is possible to achieve single-phase busbar detection, it is single-phase
Or gas circulation dries pressurized operation in three-phase enclosed busbar.
Dry gas pipeline is equipped with circulation back pressure sensor, circulation pressurization air pump, realizes system automatic inflating device.
The air inlet indoor end and outdoor end of every phase of three-phase enclosed busbar are equipped with humiture collection device, pass through the micro- electricity of system
Brain sequential operation compares the dew point control for completing gas in single-phase busbar.
Three sets of gas-drying systems, i.e. cooling driers, absorption type dryer, OMD film driers are provided with inside the system；System
System tracks the dew point in enclosed busbar, automatically selects tune at any time according to the working environment of enclosed busbar and the situation of change of weather
The conversion and cooperation of whole each drier.
The system configures air-heater（Gas line packing formula heater）, needed at any time according to environment and air supply requirement, intelligence turn
Heating mode and temperature are changed, reaches the requirement of insulator hot wind maintenance.
Itself gas replenishment cycles, by the gas in enclosed busbar by being returned after air pump pressurized treatments in busbar, reaches
Itself gas circulation reduces the purpose of system gas treating capacity.
The system air supply source can use the kinds of gas sources supply of the instrument gas of power plant, air pump supply, maintenance gas, no
It is confined to single selection source of the gas.
The system equipment has round-the-clock unattended, intelligent environment tracking data control function.Long-range DCS can be achieved
Centralized Control, while can also be manipulated at the same time by wireless network mobile phone, computer, and can realize emergent on-site manual manipulation.
Can be achieved air, instrument gas, close the kinds of gas sources such as itself gas circulation automatic selectivity supply, reach it is energy-saving and environment-friendly most
Good effect.The work(such as dehumidifying, drying, discharge can be automatically selected according to the change of the factors such as the temperature, humidity, height above sea level of site environment
It can guarantee that output gas meets the requirement of service object.Realize that global function is touched with Touch Screen using PLC microcomputer controllers
Intuitive operation is controlled, reaches the hommization operation interface of the interactive prompting of human-computer dialogue.
The utility model has the advantages that：
According to user's sets requirement automatic pressure regulation and flow, meet user because caused by device systems are revealed the defects of,
Shutdown and maintenance capacity can be reduced in certain degree.
Energy-saving and environment-friendly purpose can be reached according to setting and the optimal dew point of ambient air temperature adjust automatically.
The system can detect the gas dew point in enclosed busbar automatically, and discharge system can be automatically turned on when that cannot meet the requirements
System, is carried out at the same time hot wind maintenance, enclosed busbar can be made to reach optimum state.
The system overcomes interference of the high-voltage electromagnetic field to wireless signal acquiring and transmission, realizes high pressure strong electric field environment
Lower operation, reaches undistorted all signals, long-haul reliable control and transmission.
The system can realize with gas repeats itself in enclosed busbar, reach automatic compensation, drying, heating function, gram
Waste caused by having taken a large amount of ventilations, having saved electric energy reduces discharge.
The system equipment can reach in enclosed busbar gas collecting under hyperbaric environment, not influence the electric discharge of former enclosed busbar
Distance and insulation performance, do not change every technical conditions of original enclosed busbar.
The system fully achieves the micro-positive pressure of enclosed busbar management system of full-automatic intelligent, thoroughly eliminates manual operation
With the influence of weather, reach comprehensive, the round-the-clock management and control to enclosed busbar internal gas.
The system is acquired the pressure in enclosed busbar, humidity, temperature data by the data collector of multiple spot, nothing
Line transfer tape turn-key system carries out operational analysis, has reached accurate tracking and regulation and control in real time.
The system solves each autoregressive parameter of existing separation equipment system, the incoordination of function and reply bad condition
Inaction.
The system fundamentally realizes environmental protection and energy saving and chooses the best alternatives operation, can be taken automatically not according to climatic condition
With the method for operation, be optimal energy saving, realized in the work of gas backstreaming environmental protection and circulated by self-loopa.
The embodiment of the utility model is described in further detail below in conjunction with attached drawing.
Brief description of the drawings
Fig. 1 is Tthe utility model system configuration diagram.
Fig. 2 is the utility model electrical control block diagram.
Embodiment
It is as follows referring to Fig. 1, parts title：Three-phase enclosed busbar A, B, C, A phase circulating electromagnetic valves A1；A phases discharge electromagnetism
Valve A2；A phases outdoor end humiture Wireless data acquisition unit A3；A phase generators end humiture Wireless data acquisition unit A4；A phases
Air inlet electromagnetic valve A5；B phase circulating electromagnetic valves B1；B phase discharge solenoid valves B2；B phases outdoor end humiture Wireless data acquisition unit
B3；B phase generators end humiture Wireless data acquisition unit B4；B phase air inlet electromagnetic valves B5；C phase circulating electromagnetic valves C1；C phases are discharged
Solenoid valve C2；C phases outdoor end humiture Wireless data acquisition unit C3；C phase generators end humiture Wireless data acquisition unit C4；
C phase air inlet electromagnetic valves C5；Surge tank side pointer pressure gauge 1, circulating electromagnetic valve 2；Circulate back pressure sensor 3；Air pump tonifying Qi
Solenoid valve 4；Hot-air system air inlet electromagnetic valve 5；Hot-air drier breather check valve 6；Air-heater 7；Hot wind exports temperature and humidity sensing
Device 8；Pointer pressure 9；Delivery trunk road pressure sensor 10；Technique solenoid valve 11；Interior circulation check valve 12；Hot air flow
Motor-driven valve 13；Absorption type dryer air inlet electromagnetic valve 14；Absorption type dryer breather check valve 15；Absorption type dryer 16；Inhale
Attached formula drier output terminal Temperature Humidity Sensor 17；OMD drier output terminals Temperature Humidity Sensor 18；OMD films drier 19；
OMD breather check valves 20；OMD film driers air inlet electromagnetic valve 21；Cooling driers output terminal Temperature Humidity Sensor 22；Hand reducing pressure valve
23；QPS filter terminal pressures sensor 24；S type filters blowoff electromagnetic valve 25；S type filters 26；P-type filter blowdown
Solenoid valve 27；P-type filter 28；Cooling driers 29；System air inlet Temperature Humidity Sensor 30；Q type filters 31；Q type filters are arranged
Dirty solenoid valve 32；Q type filter pressure detectings pointer 33；Circulation pressurization air pump 34；Bleed pressure sensor 35；Surge tank 36；
System breather check valve 37；System air inlet electromagnetic valve 38；Dry gas pipeline 39, air source inlet 40；Control system 41.
Referring to Fig. 1, intelligent micro-positive pressure of enclosed busbar control system, including control system 41, three-phase enclosed busbar A, B, C
And the dry gas pipeline 39 communicated is connected thereto, dry gas pipeline 39 is equipped with air source inlet 40.Per phase enclosed busbar two
There is data collector in side respectively, is specifically A phases outdoor end humiture Wireless data acquisition unit A3, A phase generator end humiture
Wireless data acquisition unit A4, B phase outdoor end humiture Wireless data acquisition unit B3, B phase generator end humiture wireless data
Collector B4, C phase outdoor end humiture Wireless data acquisition unit C3, C phase generator end humiture Wireless data acquisition unit C4.
Cooling driers 29, filter, dryer system are connected with turn on 39 airintake direction of dry gas pipeline；The dryer system
To be connected with air-heater 7, absorption type dryer 16, OMD films drier 19.
Data collector is radio temperature sensor, pressure sensor, humidity sensor.
Pressure control unit, pressure control unit mainly have equipment internal pressure control section and the control of bus-bar system pressure
Part forms.Such as the circulation back pressure sensor 3 on dry gas pipeline 39, circulation pressurization air pump 34, bleed pressure sensing
Device 35, surge tank 36 etc..3 setting value of back pressure sensor is circulated in 0~1kPa, superfeed pressure is voluntarily selected by user and is opened
Point.System detects bleed pressure sensor 35 and Q type filters 31, p-type filter 28, S type filters automatically in working status
26 terminal pressure sensor 24 simultaneously records, and when reaching certain pressure difference, can start Q at the same time under enclosed busbar packing state
Type filter blowoff electromagnetic valve 32, p-type filter blowoff electromagnetic valve 27, S type filters blowoff electromagnetic valve 25 voluntarily repair and maintenance,
5~120s is controlled arbitrarily to set by system timer.
In Fig. 1, dry gas pipeline 39 is interior circulation loop.On dry gas pipeline 39 successively be equipped with Q type filters 31,
System air inlet Temperature Humidity Sensor 30, cooling driers 29, S type filters 26, p-type filter 28（The Q levels of QPS tertiary filters are
It will be separated by filtration away in compressed air in the impurity of more than 5PPM and grease part；P grades of filters be by compressed air
The contaminant filter of more than 1PPM is separated；S grades of filters are to separate the contaminant filter in compressed air in more than 0.01PPM
Go out）, hand reducing pressure valve 23, terminal pressure sensor 24, cooling driers output terminal Temperature Humidity Sensor 22, the hot wind of three tunnels parallel connection
Machine 7, absorption type dryer 16, OMD films drier 19, delivery trunk road pressure sensor 10.Air-heater 7, absorption type dryer
16th, OMD films drier 19 be equipped with control open hot-air system air inlet electromagnetic valve 5, absorption type dryer air inlet electromagnetic valve 14,
OMD film driers air inlet electromagnetic valve 21.Air-heater 7 be parallel with it is interior circulation check valve 12, hot air flow motor-driven valve 13, effect be
While absorption type dryer 16 and OMD driers output dry gas, busbar needs hot wind to maintain, and it is electronic to open hot air flow
Valve 13, closes technique solenoid valve 11, the technical process supplied by air-heater 7 to enclosed busbar.Three sets of gas-drying systems, i.e.,
Cooling driers 29, absorption type dryer 16, OMD films drier 19, system is according to the change of the working environment and weather of enclosed busbar
Situation, tracks the dew point in enclosed busbar, automatically selects the conversion and cooperation for adjusting each drier at any time.Air source inlet 40 can be with
It is compressed air, instrument gas, closing the kinds of gas sources such as itself gas circulation, selectively supply, system air supply source can use electricity
Instrument gas, air pump supply, the kinds of gas sources supply of maintenance gas of factory, are not limited to single selection source of the gas, reach energy-saving ring
The optimum efficiency of guarantor.Dry gas pipeline 39 is equipped with circulation back pressure sensor 3, circulation pressurization air pump 34, realizes system
Automatic inflating device.
1.1 system parameter settings
1.1.1 filter blowdown timing is set, in System production time, working time of solenoid valve and drain time by
Timer controls, and can set the working time as 1~60min；0~120s of drain time, is discharged as cycle operation system, i.e. Q types
Filter blowoff electromagnetic valve 32, p-type filter blowoff electromagnetic valve 27, S type filters blowoff electromagnetic valve 25 circulate progress successively, together
When each valve work and drain time can individually set according to demand.
1.1.2 hand reducing pressure valve 23 is adjusted to 3000~4000Pa, is the security settings scope of system.
1.1.3 cooling driers 29, absorption type dryer 16, the operating condition of OMD films drier 19 are by enclosed busbar
A phases outdoor end humiture Wireless data acquisition unit A3, A phase generator end outdoor end of humiture Wireless data acquisition unit A4, B phase
Hold the outdoor end humiture of humiture Wireless data acquisition unit B3, B phase generator end humiture Wireless data acquisition unit B4, C phase
Wireless data acquisition unit C3, C phase generator end humiture Wireless data acquisition unit C4 feedback data average calculating operation determines to launch
Open.
1.1.4 the work of cooling driers 29 start scope be that real gas dew point conditions are set as 3 in enclosed busbar~
Work, can be set by artificial selection section in 25 DEG C of working ranges.
1.1.5 it is the real gas dew point conditions setting in enclosed busbar that the work of absorption type dryer 16, which starts scope,
To work in -25~10 DEG C of working ranges, can be set by artificial selection section.
1.1.6 it is the real gas dew point conditions setting in enclosed busbar that the work of OMD films drier 19, which starts scope,
To work in -60~-15 DEG C of working ranges, can be set by artificial selection section.
1.1.7 air-heater 7（Duct type gas heater）Work start scope be the generator after generator outage
Manually started when opening again before machine, can set and maintain 40~150 DEG C of gas temperature for gas and hot air；According to outdoor gas during normal operation
Temperature automatic adjustment heating.
1.1.8 when less than 29 setting value of cooling driers, according to actual numerical value conversion operation absorption type dryer 16 or OMD
Film drier 19, reaches the demand for completing further to reduce dew point.
1.1.9 the upper and lower limit scope of 10 preset pressure of closed busbar system delivery trunk road pressure sensor 0~
Between 4000Pa, it can require voluntarily to adjust according to user.
1.1.10 the outdoor end humiture wireless data of outdoor end humiture Wireless data acquisition unit A3, B phase of A phases is adopted
Storage B3, C phase outdoor end humiture Wireless data acquisition unit C3 are monophase system Temperature and Humidity, and system is according to data feedback
Its dew point of computing, if reaching respective value automatically turns on single-phase discharge program.
1.1.11 3 setting value of back pressure sensor is circulated in 0~1kPa, and superfeed pressure is voluntarily selected by user and is opened
Point.
1.1.12 system detects bleed pressure sensor 35 and Q type filters 31, p-type filter automatically in working status
28th, the terminal pressure sensor 24 of S type filters 26 and record, can be in enclosed busbar pressurize shape when reaching certain pressure difference
Start Q type filters blowoff electromagnetic valve 32, p-type filter blowoff electromagnetic valve 27, S type filters blowoff electromagnetic valve 25 at the same time under state
Voluntarily repair and maintenance, controls 5~120s arbitrarily to set by system timer.
1.2 fully automatic system working procedures.
1.2.1 system detects A phases outdoor end humiture Wireless data acquisition unit A3, A phase generator end humiture automatically
Wireless data acquisition unit A4, B phase outdoor end humiture Wireless data acquisition unit B3, B phase generator end humiture wireless data
Collector B4, C phase outdoor end humiture Wireless data acquisition unit C3, C phase generator end humiture Wireless data acquisition unit C4,
Cooling driers output terminal Temperature Humidity Sensor 22, system air inlet Temperature Humidity Sensor 30 determine the operating scheme of system.
1.2.2 cooling driers operating scheme is started when system gas dew point is at 5~35 DEG C.
1.2.2.1 system detectio delivery trunk road pressure sensor 10 is according to the minimum working pressure of setting, system unlatching
Air inlet electromagnetic valve 38, cooling driers 29, hot-air system air inlet electromagnetic valve 5, A phase air inlet electromagnetic valve A5, B phase air inlet electromagnetic valve B5, C phases
Air inlet electromagnetic valve C5 is supplied to system, is stopped supply when reaching pressure upper limit setting value, is simultaneously closed off system air inlet electromagnetic valve
38th, cooling driers 29, hot-air system air inlet electromagnetic valve 5 enter packing state.
1.2.2.2 pressurize runtime system constantly tracks 10 data of collection delivery trunk road pressure sensor, is when reaching
Restarting systems air inlet electromagnetic valve 38, cooling driers 29, hot-air system air inlet electromagnetic valve 5 are to closing during the threshold pression of system setting
Busbar ftercompction, stops supply when delivery trunk road pressure sensor 10 reaches pressure upper limit setting value, and halt system is into pneumoelectric
Magnet valve 38, cooling driers 29, hot-air system air inlet electromagnetic valve 5 enter packing state；It is round-the-clock to maintain circulation packing state.
1.2.3 16 operating scheme of cooling driers 29+ absorption type dryers is started when system gas dew point is at -20~15 DEG C.
1.2.3.1 system detectio delivery trunk road pressure sensor 10 is according to the minimum working pressure of setting, activation system
Air inlet electromagnetic valve 38, cooling driers 29, absorption type dryer air inlet electromagnetic valve 14, absorption type dryer 16, technique solenoid valve 11, A
Phase air inlet electromagnetic valve A5, B phase air inlet electromagnetic valve B5, C phase air inlet electromagnetic valve C5 gives system supply, when reaching pressure upper limit setting value
When stop supply, simultaneously close off system air inlet electromagnetic valve 38, cooling driers 29, absorption type dryer air inlet electromagnetic valve 14, absorption type
Drier 16, technique solenoid valve 11 enter packing state.
1.2.3.2 pressurize runtime system constantly tracks 10 data of collection delivery trunk road pressure sensor, is when reaching
Unite setting threshold pression when restarting systems air inlet electromagnetic valve 38, cooling driers 29, absorption type dryer air inlet electromagnetic valve 14,
Absorption type dryer 16, technique solenoid valve 11 give enclosed busbar ftercompction, when delivery trunk road pressure sensor 10 reaches upper pressure limiting
Stop supply, halt system air inlet electromagnetic valve 38, cooling driers 29, absorption type dryer air inlet electromagnetic valve 14, suction during power setting value
Attached formula drier 16, technique solenoid valve 11 enter packing state；It is round-the-clock to maintain circulation packing state.
1.2.4 cooling driers 29 are started when system gas dew point is at -15~-60 DEG C, OMD films dry 19 device operating schemes.
1.2.4.1 system detectio delivery trunk road pressure sensor 10 is according to the minimum working pressure of setting, activation system
Air inlet electromagnetic valve 38, cooling driers 29, OMD film driers air inlet electromagnetic valve 21, OMD films drier 19, technique solenoid valve 11, A phases
Air inlet electromagnetic valve A5, B phase air inlet electromagnetic valve B5, C phase air inlet electromagnetic valve C5 is supplied to system, when reaching pressure upper limit setting value
Stop supply, simultaneously close off system air inlet electromagnetic valve 38, cooling driers 29, OMD film driers air inlet electromagnetic valve 21, the drying of OMD films
Device 19, technique solenoid valve 11 enter packing state.
1.2.4.2 pressurize runtime system constantly tracks 10 data of collection delivery trunk road pressure sensor, is when reaching
Unite setting threshold pression when restarting systems air inlet electromagnetic valve 38, cooling driers 29, OMD film driers air inlet electromagnetic valve 21,
OMD films drier 19, technique solenoid valve 11 give enclosed busbar ftercompction, when delivery trunk road pressure sensor 10 reaches pressure upper limit
Stop supply, halt system air inlet electromagnetic valve 38, cooling driers 29, OMD film driers air inlet electromagnetic valve 21, OMD films during setting value
Drier 19, technique solenoid valve 11 enter packing state；It is round-the-clock to maintain circulation packing state.
1.3 self-loopa tonifying Qi operation programs
1.3.1 system detects A phases outdoor end humiture Wireless data acquisition unit A3, A phase generator end humiture automatically
Wireless data acquisition unit A4, B phase outdoor end humiture Wireless data acquisition unit B3, B phase generator end humiture wireless data
Collector B4, C phase outdoor end humiture Wireless data acquisition unit C3, C phase generator end humiture Wireless data acquisition unit C4,
Cooling driers output terminal Temperature Humidity Sensor 22, system air inlet Temperature Humidity Sensor 30 determine the operating scheme of system.
1.3.2 cooling driers operating scheme is started when system gas dew point is at 5~35 DEG C.
1.3.2.1 system detectio delivery trunk road pressure sensor 10 starts A phases according to the minimum working pressure of setting
Circulating electromagnetic valve A1, B phase circulating electromagnetic valve B1, C phase circulating electromagnetic valve C1, circulating electromagnetic valve 2, circulate pressurization air pump 34, be cold dry
Machine 29, hot-air system air inlet electromagnetic valve 5, A phase air inlet electromagnetic valve A5, B phase air inlet electromagnetic valve B5, C phase air inlet electromagnetic valves C5 are
System supply, stops supply when reaching pressure upper limit setting value, simultaneously closes off circulation pressurization air pump 34, cooling driers 29, hot wind system
System air inlet electromagnetic valve 5 enters packing state.
1.3.2.2 pressurize runtime system constantly tracks 10 data of collection delivery trunk road pressure sensor, is when reaching
Restarting circulation pressurization air pump 34, cooling driers 29, hot-air system air inlet electromagnetic valve 5 give closing female during the threshold pression of system setting
Line ftercompction, stops supply when delivery trunk road pressure sensor 10 reaches pressure upper limit setting value, stops circulation pressurization air pump
34th, cooling driers 29, hot-air system air inlet electromagnetic valve 5 enter packing state；It is round-the-clock to maintain circulation packing state.
1.3.2.3 system detectio to circulation 3 back pressure of back pressure sensor be less than setting value when, close circulate electromagnetism
Valve 2 opens air pump tonifying Qi solenoid valve 4 by circulating pressurization air pump 34 to system tonifying Qi at the same time, reaches delivery trunk road pressure sensing
During 10 upper limit of device, closed with system and simultaneously close off air pump tonifying Qi solenoid valve 4.
1.3.3 cooling driers 29,16 operating scheme of absorption type dryer are started when system gas dew point is at -20~15 DEG C.
1.3.3.1 system detectio delivery trunk road pressure sensor 10 starts A phases and follows according to the minimum working pressure of setting
Ring solenoid valve A1, B phase circulating electromagnetic valve B1, C phase circulating electromagnetic valve C1, circulating electromagnetic valve 2, circulation pressurization air pump 34, cooling driers
29th, absorption type dryer air inlet electromagnetic valve 14, absorption type dryer 16, technique solenoid valve 11, A phases air inlet electromagnetic valve A5, B phase into
Pneumoelectric magnet valve B5, C phase air inlet electromagnetic valve C5 is supplied to system, is stopped supply when reaching pressure upper limit setting value, is simultaneously closed off
Circulation pressurization air pump 34, cooling driers 29, absorption type dryer air inlet electromagnetic valve 14, absorption type dryer 16, technique solenoid valve 11
Into packing state.
1.3.3.2 pressurize runtime system constantly tracks 10 data of collection delivery trunk road pressure sensor, is when reaching
Restarting circulation pressurization air pump 34, cooling driers 29, absorption type dryer air inlet electromagnetic valve 14, suction during the threshold pression of system setting
Attached formula drier 16, technique solenoid valve 11 give enclosed busbar ftercompction, when delivery trunk road pressure sensor 10 reaches pressure upper limit
Stop supply during setting value, stop circulation pressurization air pump 34, cooling driers 29, absorption type dryer air inlet electromagnetic valve 14, absorption type
Drier 16, technique solenoid valve 11 enter packing state；It is round-the-clock to maintain circulation packing state.
1.3.3.3 system detectio to circulation 3 back pressure of back pressure sensor be less than setting value when, it is electric to close circulation
Magnet valve 2 opens air pump tonifying Qi solenoid valve 4 by circulating pressurization air pump 34 to system tonifying Qi at the same time, reaches delivery trunk road pressure and passes
During 10 upper limit of sensor, closed with system and simultaneously close off air pump tonifying Qi solenoid valve 4.
1.3.4 cooling driers 29,19 operating scheme of OMD films drier are started when system gas dew point is at -15~-60 DEG C.
1.3.4.1 system detectio delivery trunk road pressure sensor 10 starts A phases according to the minimum working pressure of setting
Circulating electromagnetic valve A1, B phase circulating electromagnetic valve B1, C phase circulating electromagnetic valve C1, circulating electromagnetic valve 2, circulate pressurization air pump 34, be cold dry
Machine 29, OMD film driers air inlet electromagnetic valve 21, OMD films drier 19, technique solenoid valve 11, A phases air inlet electromagnetic valve A5, B phase into
Pneumoelectric magnet valve B5, C phase air inlet electromagnetic valve C5 is supplied to system, is stopped supply when reaching pressure upper limit setting value, is simultaneously closed off
Circulation pressurization air pump 34, cooling driers 29, OMD film driers air inlet electromagnetic valve 21, OMD films drier 19, technique solenoid valve 11 into
Enter packing state.
1.3.4.2 pressurize runtime system constantly tracks 10 data of collection delivery trunk road pressure sensor, is when reaching
Restarting circulation pressurization air pump 34, cooling driers 29, OMD film driers air inlet electromagnetic valve 21, OMD during the threshold pression of system setting
Film drier 19, technique solenoid valve 11 give enclosed busbar ftercompction, are set when delivery trunk road pressure sensor 10 reaches pressure upper limit
Stop supply during definite value, stop circulation pressurization air pump 34, cooling driers 29, OMD film driers air inlet electromagnetic valve 21, the drying of OMD films
Device 19, technique solenoid valve 11 enter packing state；It is round-the-clock to maintain circulation packing state.
1.3.4.3 system detectio to circulation 3 back pressure of back pressure sensor be less than setting value when, it is electric to close circulation
Magnet valve 2 opens air pump tonifying Qi solenoid valve 4 by circulating pressurization air pump 34 to system tonifying Qi at the same time, reaches delivery trunk road pressure and passes
During 10 upper limit of sensor, closed with system and simultaneously close off air pump tonifying Qi solenoid valve 4.
1.3.5 each sensing data of timing inspection in the process of running, accomplishes adjust automatically operating scheme at any time, tracks
Busbar internal gas situation is recorded, record data preserve 30 days.
1.4 single-phase examine discharge working procedure
Single-phase enclosed busbar drier ventilation maintenance：When detecting the outdoor end humiture of single-phase enclosed busbar without line number
When exceeding setting range according to collector and generator end humiture Wireless data acquisition unit data difference, start corresponding runtime
Condition, supplies to closed busbar system, gives single-phase enclosed busbar air inlet by phase air inlet electromagnetic valve, opens phase discharge solenoid valve control
Output gas dew point processed, simultaneously closes off remaining two-phase phase air inlet electromagnetic valve；When reaching setting value close phase discharge solenoid valve and
Relevant system operation, opens the phase air inlet electromagnetic valve waiting system normal circulation operation of remaining two-phase；This function is only in pressurize
Carried out in time（Dwell time is calculated by dwell time when circulating first）.
1.5 circuit theory explanations
Referring to Fig. 2, control system includes main control PLC, touch-screen, enclosed busbar data collector, and device systems data are adopted
Storage, source of the gas control unit, pressure control unit, cooling driers control unit, air-heater control unit, macromolecule sieve control are single
Member, gas circuit loop control unit.
1.5.1 referring to Fig. 2, start the program of selected operation by touch-screen, PLC according to setting program and enclosed busbar without
The feedback data of line data collector and device systems data collector is calculated, and provides work order and the ginseng of each equipment
Number.
1.5.2 compared when data are transmitted back to PLC controller by each Wireless data acquisition unit being located in enclosed busbar
To computing, reaching will arrestment operation and supply after standard requires.
1.5.3 PLC system can be according to the requirement automatic selective system method of operation of supply and the setting value of each several part.
1.5.4 equipment operating data is fed back to PLC by equipment built-in system data collector；Selected according to device data
The method of operation, while can reach self-test and alarm.
1.5.5 system can adjust and judge the scheme for supplying and maintaining to it according to the data difference per phase enclosed busbar,
Its internal gas environment is individually adjusted using solenoid valve.
1.6 embodiment
1.6.1 touch-screen is responsible for realizing human-computer dialogue, reaches override and data read functions to each auxiliary device.
1.6.2 PLC is run according to setting program and data collector adjusting device, while analyzes the operation of each phase busbar
Environment and condition, make single scheme and adjustment.
1.6.3 enclosed busbar data collector is by groups such as radio temperature sensor, pressure sensor, humidity sensors
Into its function is to pass the environmental gas situation in enclosed busbar back control system.
1.6.4 device systems data collector is that the operation data acquisition of each equipment in system is transmitted back to control system
System, completes the self-test of system and assists the operation of adjusting parameter.
1.6.5 source of the gas control unit is made of oil-free air pump, oil-free circulation air pump and station-service instrument air, can be according to not
It is same to set or automatically select the different source of the gas methods of operation, there is provided the compressed air of enough pressure.
1.6.6 pressure control unit mainly has equipment internal pressure control section and the packet of bus-bar system pressure control portion
Into；Equipment internal pressure control section is supercharging, decompression, air pressure adjustment and the flow adjustment of each equipment in the machine of control operation；
Bus-bar system pressure controlling section is the system for controlling the pressure balance value scope inside enclosed busbar, it is ensured that per phase enclosed busbar
Interior pressure is constant within the specific limits.
1.6.7 cooling driers control unit is to be removed the moisture content in compressed air using cooled dehumidifier unit, and it is low to reach low temperature
The compressed air of dew point, meets the demand of system, system can when extraneous air natural environment temperature is low automatic start.
1.6.8 hot wind control unit be after with heater, compressed air is heated to each phase busbar carry out hot wind maintenance and
The system of dehumidifying, automatically selects unlatching by each phase system Humidity Detection value, also can individually perform.
1.6.1.6 macromolecule sieve control unit is that the ingress filter inside compressed air is gone out, and macromolecule removes gas
Moisture content, obtains the compressed air of low dew point room temperature, meets system requirements.
1.6.10 gas circuit loop control unit meets system by the unlatching of solenoid valve and the control of motor-driven valve switching value
A item executive program, reach and accurately control purpose.
1.7 system operation mode
System is combined according to the following method of operation of selection and operating parameter of upper table and running environment intelligence, meets closing
The safe operation of busbar, while achieve the purpose that energy-saving and environmental protection, such as：
1.7.1 air pump supply fully automatic operation mode is carried.
1.7.2 air pump supply+interior circular flow mode is carried.
1.7.3 air pump supply+hot wind maintenance method of operation is carried.
1.7.4 air pump supply+hot wind maintenance+interior circular flow mode is carried.
1.7.5 power plant's instrument gas source feed fully automatic operation mode.
1.7.6 power plant's instrument gas source feed+interior circular flow mode.
1.7.7 power plant's instrument gas source feed+hot wind maintenance method of operation.
1.7.8 power plant's instrument gas source feed+hot wind maintenance+interior circular flow mode.
1.7.9 air pump supply+cold dry dehumidification mode of operation is carried.
1.7.10 air pump supply+cold dry dehumidifier+hot wind maintenance method of operation is carried.
1.7.11 air pump supply, the macromolecule sieve dehumidifier method of operation are carried.
1.7.12 air pump supply+macromolecule sieve dehumidifier+hot wind maintenance method of operation is carried.
1.7.13 air pump tonifying Qi+cold dry dehumidifier+interior circular flow mode is carried.
1.7.14 air pump tonifying Qi+macromolecule sieve dehumidifier+interior circular flow mode is carried.
1.7.15 power plant's instrument gas source feed+cold dry dehumidifier method of operation.
1.7.16 power plant's instrument gas source feed+cold dry dehumidifying supply+hot wind maintenance method of operation.
1.7.17 power plant's instrument gas source feed+macromolecule sieve dehumidifier method of operation.
1.7.18 power plant's instrument gas source feed+macromolecule sieve dehumidifier+hot wind maintenance method of operation.
1.7.19 power plant's instrument gas source feed+cold dry dehumidifier+interior circular flow mode.
1.7.20 power plant's instrument gas source feed+macromolecule sieve dehumidifier+interior circular flow mode.
1.7.21 power plant's instrument air tonifying Qi+macromolecule sieve dehumidifier+hot wind maintenance+interior circular flow mode.
1.7.22 power plant's instrument air tonifying Qi+cold dry dehumidifier+hot wind maintenance+interior circular flow mode.
1.7.23 automatic tire pump tonifying Qi+macromolecule sieve dehumidifier+hot wind maintenance+interior circular flow mode.
1.7.24 air pump tonifying Qi+cold dry dehumidifier+hot wind maintenance+interior circular flow mode is carried.
1.7.25 overhaul gas source feed fully automatic operation mode.
Regulated variable is manually set in 1.8 systems.
1.8.1 enclosed busbar internal pressure：2000Pa~3500Pa.
1.8.2 hot wind maintains temperature：40 DEG C~150 DEG C.
1.8.3 interior circulation superfeed pressure：0.4MPa~0.8MPa.
1.8.4 dew point in enclosed busbar：With environment~-70 DEG C.
1.8.5 ambient dew point difference setting：5 DEG C~20 DEG C.
1.8.6 enclosed busbar tonifying Qi.
1.8.6.1 superfeed pressure：1000Pa~3000Pa.
1.8.6.2 the tonifying Qi time：1min~60min.
1.8.7 circulation wind speed in enclosed busbar：1m/s~5m/s.
1.8.8 three air quantity adjustment of enclosed busbar：Balance~single control（Motor-driven valve）.
1.8.9 data update acquisition time：1min~5min.
1.8.10 Systematic selection changes the time：After the completion of last program operation.
Claims (7)
1. intelligent micro-positive pressure of enclosed busbar control system, including control system, three-phase enclosed busbar A, B, C and it is connected thereto phase
Logical dry gas pipeline（39）, dry gas pipeline（39）It is equipped with air source inlet（40）, it is characterised in that it is female per mutually closing
There are data collector in line both sides respectively；Dry gas pipeline（39）Include being connected with cooling driers successively on airintake direction（29）, mistake
Filter, dryer system；The dryer system is to be connected with air-heater（7）, absorption type dryer（16）, OMD films drying
Device（19）Middle a kind of or combination.
2. intelligent micro-positive pressure of enclosed busbar control system described in accordance with the claim 1, it is characterised in that data collector is
Radio temperature sensor, pressure sensor, humidity sensor.
3. according to the intelligent micro-positive pressure of enclosed busbar control system described in claim 1 or 2, it is characterised in that air-heater（7）、
Absorption type dryer（16）, OMD film driers（19）To be connected in parallel.
4. intelligent micro-positive pressure of enclosed busbar control system described in accordance with the claim 3, it is characterised in that dry gas pipeline
（39）For interior circulation loop.
5. according to the intelligent micro-positive pressure of enclosed busbar control system described in claim 4, it is characterised in that dry gas pipeline
（39）It is equipped with circulation back pressure sensor（3）, circulation pressurization air pump（34）, realize system automatic inflating device.
6. according to the intelligent micro-positive pressure of enclosed busbar control system described in claim 5, it is characterised in that filter is series connection
S type filters（26）, p-type filter（28）, Q type filters（31）.
7. according to the intelligent micro-positive pressure of enclosed busbar control system described in claim 6, it is characterised in that controlled including pressure
Unit, pressure control unit are mainly made of equipment internal pressure control section and bus-bar system pressure controlling section.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107491108A (en) * | 2017-10-21 | 2017-12-19 | 通化名成电瓷电器有限公司 | Intelligent micro-positive pressure of enclosed busbar control system |
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