± 800kV ultra-high voltage converter station converter valve is installed monitoring control device
Technical field
The utility model relates to the installing area of ultra-high voltage converter station converter valve, relates in particular to a kind of ± 800kV ultra-high voltage converter station converter valve monitoring control device is installed.
Background technology
At present, the coal resource distribution of China 76% is in the north and the northwestward; 80% hydraulic power potentials is distributed in the west and south; Overwhelming majority land wind energy, solar energy resources are distributed in the northwestward.More than 70% energy demand simultaneously but concentrates on middle part, east.At load center, build thermal power plant, Coal Transport, environmental capacity are all a problem, and existing electrical network cannot be realized large-capacity power conveying, therefore, builds extra-high voltage electric power passage and becomes unique selection.Extra-high voltage direct-current transmission is for remote or overlength distance transmission of electricity, because its relatively traditional ac transmission is more economical, be applicable to long distance, large capacity transmission, have line loss low, transmission obvious energy conservation, the features such as circuit corridor is narrow, occupation of land is few, and the method for operation is flexible, governing speed is fast, reliable.
Ha Minan-Zhengzhou ± 800kV extra-high voltage direct-current transmission engineering is that DC transmission engineering electric pressure is the highest in the world at present, transmission capacity is maximum (transmission power 8000MW), the DC transmission engineering of fed distance the longest (total track length 2210km).Rated direct voltage ± 800kV, rated direct current 5000A.This project adopts at present state-of-the-art 6 inch thyristors in the world, and this is also the nucleus equipment of direct current transportation, and installation and operation is high to environmental requirement, ℃-25 ℃, temperature+10, the valve Room; Relative humidity is less than 60%; Air is through three-stage filtration, and 24 hourly averages of PM2.5 numerical value should be less than 75(μ g/m3).
In converter valve installation in the past, although equipment manufacturers have proposed strict demand to environment, but unit in charge of construction did not monitor environment in the construction stage, still according to conventional way, construct, mainly rely on aspect clean in the valve Room and sweep the floor, wash and mopped floor.In work progress, the shutoff of the valve Room just becomes installation progress according to the change of current and carries out shutoff, and the air-conditioning system being equipped with is blown in the valve Room according to the temperature of setting.
Aspect construction management, safety technique is told somebody what one's real intentions are and mainly with mode word, is carried out, and takes passages the partial content in arrangement and method for construction, and after workmen accepts to tell somebody what one's real intentions are, on the record of telling somebody what one's real intentions are, signature is confirmed.In daily station class meeting, mainly take at the bottom of construction responsible official's an casual acquaintance as main, workmen mainly be take and is listened as main.In work progress management, construction responsible official and security official carry out safety supervision from two angles, and it is main that physical inspection afterwards is mainly leaned in quality check.
When converter valve components lifts, workmen ties assembly by chain or suspender belt, with electric block lifting subassembly, installs.
The shortcoming of current construction and installation is as described below:
(1), according to conventional method, do the valve Room when clean, sweep the floor and can in the valve Room, kick up a dust, affect the cleanliness factor of converter valve and assembly, washing mops floor can increase the relative humidity in the valve Room, affects the quality of converter valve.
(2), in converter valve installation process, air-conditioning system continues to send into pure air in the valve Room, if suitable shutoff is not carried out in the valve Room, outdoor dust will enter the valve Room from converter transformer sleeve mounting hole, affects the cleanliness in the valve Room.In the valve Room, without atmospheric pressure monitoring arrangement, air-conditioning amount cannot regulate according to situation in the valve Room, can not guarantee that outdoor dust does not enter the valve Room.
(3), in construction management, safe construction is primary, the main points of safety management are mainly people's unsafe acts and the unsafe condition of thing, the class meeting of daily station is the major way to people's management, and it is habitual tired easily to allow people produce at the bottom of conventional oral and pen friends, do not have the effect of telling somebody what one's real intentions are.
(4), in converter valve installation, high-rise working is many, and construction responsible official and security official mainly guard on ground, have very large dead band, visual angle, cannot control condition of construction comprehensively.
(5), controlling aspect installation quality, the method for conventional postmortem cannot be found hiding mass defect, is also inconvenient to carry out crash analysis while going wrong.
(6), when using electric block to carry out the lifting of assembly, workmen generally lifts by crane electric block at full speed, easily occurs rocking of overload power and assembly, may occur looseningly or crooked after chain or suspender belt colligation in lifting process, causes security incident.
Utility model content
A kind of ± 800kV ultra-high voltage converter station converter valve that the purpose of this utility model is to provide is installed monitoring control device, and the ambient conditions in the monitor valve Room, guarantees that environmental baseline is all the time within claimed range in real time.
The utility model adopts following technical proposals: a kind of ± 800kV ultra-high voltage converter station converter valve is installed monitoring control device, include the temperature-humidity detecting device that detects valve Room environment, dust degree pick-up unit, atmospheric pressure transmitter, the obliquity sensor of angle while detecting in addition hanging component lifting, detect the speed pickup of electric block, monitoring host computer, described humiture monitoring arrangement, dust degree monitoring arrangement, atmospheric pressure transmitter, obliquity sensor, the signal output part of speed pickup connects monitoring host computer, the signal output part of monitoring host computer is connected with alarm unit.
Also include the equipment state of monitoring in the valve Room and the camera of Construction State, the signal output part of camera connects monitoring host computer.
Also include the wireless camera being arranged on workmen's safety helmet, the signal output part of wireless camera connects monitoring host computer
Described alarm unit adopts sound and light alarm, voice reminder.
The display screen of described monitoring host computer adopts touch display screen.
The utility model mainly utilizes sensor that the temperature in the valve Room, dust degree, atmospheric pressure environments parameter Real-time Collection are flowed to monitoring host computer, monitoring host computer record is preserved, and be set with setup parameter, automatic alarm when finding that environment does not meet the demands, and provide the processing suggestion for the situation of exceeding standard, remind workmen to take measures in time, guarantee that valve Room environment meets the demands all the time.Also detect the levelness of lifting object and the lifting speed of valve module, guarantee to lift steadily safety and carry out.The use of this device, has guaranteed the installation quality of valve tower, has reduced the number of times that causes system to stop transport because installation quality is defective, reduces economic loss.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Embodiment
As shown in Figure 1, the utility model discloses a kind of ± 800kV ultra-high voltage converter station converter valve monitoring control device is installed, include the humiture monitoring arrangement that detects valve Room environment, dust degree monitoring arrangement, atmospheric pressure transmitter, the obliquity sensor of angle while detecting in addition hanging component lifting, detect the speed pickup of electric block, monitoring host computer, described humiture monitoring arrangement, dust degree monitoring arrangement, atmospheric pressure transmitter, obliquity sensor, the signal output part of speed pickup connects monitoring host computer, the signal output part of monitoring host computer is connected with alarm unit.Apart from the above, the utility model also include the equipment state of monitoring in the valve Room and Construction State camera, be arranged on the wireless camera on workmen's safety helmet, the signal output part of camera and wireless camera is connected monitoring host computer.Wherein said alarm unit adopts sound and light alarm or voice reminder.
The utility model is by humiture and dust degree in 6 tunnel humiture monitoring arrangements, 2 road dust degree monitoring arrangement (PM2.5 concentration monitor device) Real-Time Monitorings the recording valve Room arranged in the valve Room, once surpass established standards, system will be reported to the police provides sound and light alarm or voice reminder, configuration floor-cleaning machine and suction cleaner equipment in the valve Room, when environment dust degree exceeds standard, personnel use floor-cleaning machine and suction cleaner cleaning ground environment immediately, reduce dust concentration; The valve Room disposes air conditioner ventilation equipment, when valve Room humiture exceeds standard warning, manually adjusts immediately air-conditioning temperature and air-supply humidity, and valve Room humiture is met the demands.Atmospheric pressure in the atmospheric pressure transmitter Real-Time Monitoring valve Room of arranging in the valve Room, and compare with regional standard air pressure, while exceeding standard, personnel investigate shutoff immediately, close inoperative door, strengthen air output, note the closure construction in the valve Room constantly, the inner pressure-fired in the maintaining valve Room, guarantees that environmental baseline is all the time within claimed range.
The utility model monitors the levelness of lifting object and the lifting speed of valve module by 2 road obliquity sensors, No. 2 speed pickups, state while monitoring valve module lifting, once surpass established standards, system will be reported to the police provides sound and light alarm or voice reminder, personnel investigate colligation point and hanging belt, can constantly remind installation personnel to note the control lifting, guarantee to lift steadily safety and carry out.
The utility model is by being arranged in equipment state and the Construction State in 4 road cameras (360 ° of high definition zoom cameras) the real time monitoring valve Room in the valve Room, omnidistance recording valve Room equipment is installed, the scanning monitoring that a plurality of angles are constructed, increase the visual angle of safety supervision, for the construction of DC converter station is accumulated experience, guarantee safety construction.In the installation process of converter valve equipment, installation personnel and quality supervision personnel all configure wireless camera on safety helmet, and work progress and supervision and check process real-time Transmission, to monitoring host computer, are guaranteed to installation quality at many levels.
After converter valve equipment installation, by quality supervision personnel combination plant producer and management utilize endoscope to heavy-current bus-bars tie point, fibre-optical splice, water-cooled pipeline be connected, the critical control point such as visual plant checks, and will check video recording specialty storage separately, dead angle is not stayed in ensure quality inspection.
The display screen of monitoring host computer described in the utility model adopts touch display screen, and monitoring host computer disposes big capacity hard disk.The main contents that daily station class meeting safety technique can be told somebody what one's real intentions are are stored in monitoring host computer, and adopt the multimedia forms such as animation, PPT to carry out program request, have met different post staff's needs.By touch-screen, realize the site technology of converter valve mount scheme and tell somebody what one's real intentions are, in work progress, facilitate site work personnel to check at any time arrangement and method for construction, according to construction speed, check key job points and safety notice.By touch screen computer, realize " three hand over ", " three-controls " of the class meeting of standing safely every day, and guarantee to stand class meeting content without omission according to operation progress, guarantee the standardization of safety station class meeting flow process.