The construction, the host equipment manufacturing is the present cloud broad cocurrent project two big key points. South electrical network ultrahigh voltage electric transmission company various departments “the eight immortals crossing the sea, each obviously wonderful move”, seizes the proper time, advances the engineering construction comprehensively.
Stresses the star-level articulare
“time which delays on the main equipment, we argue vigorously through the construction snatch.”Snatches, must toil, must work skillfully. What tests is project management personnel's overall plan analysis ability.
Recently, reporter had discovered "±800kV Cloud Broad Extra-high tension Direct current transmission Line Project Critical path Analysis report", reported will affect the line project two critical junction node, namely construction and provisioning, according to difficulty degree tabulation “asterisk”, “the three-star” has the serious influence to the progress, “this is the key point which we grasp key refer to is.”Engineering department Zhao Shengji answers questions dispels doubt.
It is known that this project line altogether has the iron tower 2605 bases, surplus 91 base foundation. The report data demonstrated that direct-current and earthed pole line altogether 48 sign sections, foundation has 25 sign sections. Accounts for the total quantity 52%. And not affects to the progress has 11 sign sections. In 14 sign sections, some 3 sign section row “a star”, 2 sign section row “two stars”, other 9 sign Duan Ze is highest “Tristar”. As soon as in “Tristar” in the sign section, except occupies within the boundaries of Wuzhou, other concentrate in the Guangdong section. “from the analysis, in the clear line construction most affects the progress the sign section, these sign section is must concentrate the unyielding person who the firepower takes.”
In another articulare - - provisioning, the line passes through in 6 scene control divisions, a provisioning arrival of shipment rate named Liuzhou section, it also becomes the provisioning finally the key attention spot.
“Qujing section, although the whole construction progress is normal. But should consider that has 2 sign sections to be situated at Luo evenly within the boundaries, the weather factor will create to the construction affects greatly. 1 sign section spanning power circuit are many, therefore this ready money control department may not lower one's guard, wants the key attention technical force, the labor appliance, the manpower investment situation.”
Follows close on the main equipment manufacture
At present, except an experiment, other including has not traded the class valve, to trade changing and so on main equipment to experiment all passes.
Trades changing a modelling test wave 60% discount, only HY trades changing from December, 2007 to have been through repeatedly 4 experiments to September, facing presents like the bureau to put exceeding the allowed figure, the temperature rise arc-over, the accent successively to press the switch breakdown and so on many questions, Siemens makes the improvement one by one, on September 27 through the experiment, “was pregnant” finally after 10 months is born in the world the first ±800 kilovolt to trade changes the depressor.
The experimental delay, its delivery time retards repeatedly. After HY2 and the HD2 experiment completes, Siemens proposed the new delivery plan, Shen, west, guaranteed also provides the final blueprint and raw material entering the plant time according to Simens has discharged the delivery time.
The delivery progress is unable to meet the project production needs, the other day, in the cloud directs current the third main equipment coordination meeting and the high-end changes broadly the technology gives the low-down at the meeting, company on questions and the domestic and foreign factories and so on progress has carried on “intensely” communication. On November 11, deputy general manager Shang Chun third time led to go to Germany Siemens, carried out the key equipment goods supply plan.
Guarantees equipment safe fast arriving at
The cloud broad cocurrent project both sides convertor station has 28 (including spare) to trade respectively changes the depressor, 9 (including spare) flat wave reactor, equals the altogether 74 large-scale equipments, the total value surpasses 400,000,000 US dollars, occupied the engineering facilities total price 41.5%.
In the achievement convertor station the biggest equipment trades changes the depressor long the approximately 12.5 meters, wide and high respectively is 3.98 meters and 4.85 meters, the shipping weight amounts to 312 tons, after installing the appendix, the oil injection finished the gross weight nearly 450 tons, traded the changing build 500 kilovolts to be huger.
How are these also huge the expensive equipment to transport? It is reported that these equipment must first from overseas or the home after the road, the railroad, the sea route transportation arrive at Guangzhou Huangpu port, then through the hard land transport to the recent railroad freight station, uses the large-scale platform trailer to transport to the convertor station job location finally.
The Chuxiong convertor station is situated at the southwest interior, enters the station the path “nine tunes 18 curved”, the transportation large-scale heavy item is quite inconvenient. The railway transportation ability's limit, the large-scale equipment one time can only transport 3. Trades changing from Zhanjiang to Chuxiong altogether 28 to involve to the railway transportation, but railway transportation's bottleneck is special-purpose carrier vehicle's quantity and mixes the turnover, transports the line long, to transport the place to be completely different, the transportation time centralism, the arrival of shipment time to be anxious, the transportation work load is big, has brought the huge difficulty for the railway transportation work, whether to plan the reasonable well transport work, also will affect the field installation construction progress.
In order to transport these colossi, the commodity company starts from the preliminary feasibility study is the research, develops the railroad, the highway transportation way choice, along the route the road section weak place and the bridge broaden, the reinforcement and the obstacle migration work, and develops positively with Railroad Department contacting consultation transportation plan, manufacture special carrier vehicle, arrangement shipping plan and so on.
Front attacking a fortified position gram difficult, latter square pillow Ge Dandai. For the running attention both sides convertor station, Guangzhou Bureau and the peaceful bureau are ahead of time “enter the play”. Guangzhou Bureau organizes to convene the Guangzhou east station electricity construction technique specially to give the low-down the meeting, the peaceful bureau aims at the talented person “the short board”, “please do come, to deliver, on everybody the platform”, the three-dimensional fosters the talent without restraint of style. Moreover, the union “ten labor competitions”, the Company union draws up, takes the rewards and punishment policies and measures, widely carries out the labor competition. The office records section also specially aims at the project to carry on the file “specially” training, supplemented that studies the new profession standard.