The review of the power plant new shipbuilding adopts the main shaft shaft generator system and the view of the shipbuilding center of the COSCO Container Lines Co., Ltd. Ma Zhijun Xin Yanlin survey, and also the view of the new shipbuilding using the shaft generator, and the foreword is well known, the 5-transport cost of the ocean-going ship In an upward trend year by year, the world's major shipping companies are trying to reduce the cost of transportation by 5 in order to obtain higher economic benefits, and strive to make the selection of equipments more economical. The economics of ship power stations is a concern. Hotspots, especially for large and medium-sized container ships, are the most prominent. The total capacity of the entire power station has reached 8,01; therefore, the transmission and consumption of the ship's electric energy and its cost must be fully estimated. The main shaft with generator is an important part of the ship power station, it is necessary to re-recognize. 100500 new shipbuilding adopts the main shaft with generator system. The ship's shaft generator with electric generator can be divided into two categories: no frequency compensation type and frequency compensation type. In 980, the ship was built in the Japanese 541 shipyard. The main shaft of the ship series with generator belongs to the shaftless generator with no frequency 该. The main engine of the ship is medium speed diesel boring machine, the running speed is 434. The propeller is variable pitch, and the shaft generator is increased. The speed of the speed gear is increased by 1801. The ship 1 is usually hoisted by the shaft generator separately. However, this type of shaft generator is subject to sea conditions, and when the wind and waves are encountered, the change of the main engine speed will cause the frequency fluctuation of the electric 1 bucket. Have to use the marine diesel generator to supply power again, can not run in parallel with other diesel generators for a long time, can only change the machine for a short time to make the frequency compensation type shaft generator, 0300 is used in 13 ships, is Germany 3 Just touch the company and 4 catch the company's production; for example, the Qinghai Xihe round. It is like a seven-axis shaft generator driven by the main engine, and its rotation speed is changed. Therefore, the phase-to-phase generator of the AC-powered ship grid provides constant-frequency constant-voltage phase AC, rectified active inverter and synchronous adjustment. The reactive power compensation of the phaser, the frequency and voltage automatic adjustment technology, and finally the constant frequency and constant voltage power supply to the ship grid can be used in parallel with the diesel generator set for long-term stability. The current situation of 2-axis generators For the medium-sized plastic container ships, most of the main engines are claw-low-speed high-power diesel-fired machines. The shaft generators used are all bent on the first batch of containers with frequency compensation type shaft generators. The SIEMENS shaft generator was installed on the ship's Qingtang Tanghe wheel. The power was outside. At the 3 shipyards in Germany, the 13017001 container ship was built. The shaft generator was installed in the same section. Three of the ships were installed, 0 product. The rest are 313 products, and the power is a frequency-compensated shaft generator that was shipped in the early 70s. It is 513 products. Also the first generation shaft generator. The bought hand boat, the Longhai River Xinghai River, installed this kind of shaft generator, the power is 65 003. The shaft generator used in the new shipbuilding in Germany belongs to the first generation in the early 90s, Germany 55 and Germany. The University of Hamburg, 1 ship inspection bureau jointly developed the first generation of shaft generators. The characteristics of the generators are asynchronous shaft generators, eliminating the need for synchronous phase modulators, resulting in a significant cost reduction, the main thyristor and the trigger circuit. It has been combined and the control system uses a programmable controller to improve the reliability of the product. The output power is 970, which can meet the normal navigation of the ship. More than OOOkW, the above-mentioned manufacturers of the shaft generators in Japan are similar to the German first-generation shaft generators. The control system is relatively simple and clear, and the reliability of the products is high. 3 How far can the auxiliary oils burn? How far can the heavy oils go into the 1990s? All of them have developed 418, 4 and 1 products from Europe. 050 is also almost all diesel engines with flammable heavy oil on the new shipbuilding. There is no doubt that the auxiliary machine and the main engine will produce good energy-saving effect and economic efficiency. However, there are many questions in actual use. And the difficulty, so that some of the heavy-duty oil auxiliary engines have to switch to marine diesel, and the ships that are still burning heavy oil have also encountered a lot of numbness, burning heavy oil, so that the temperature of the entire cabin is raised. The problem has increased. With the reduction of the volume management staff, the situation of the auxiliary engine burning is severe, and in this case. How far the auxiliary engine can be used will be more and more concerned, but the conclusion may not be satisfactory. 4 The view of the ship adopting the shaft generator is 80. From the 1985, the net is 1300, 17, 11 The container ship will not be used after the shaft rolling machine. We have repeatedly thought about why the first batch of container ships built in Germany in 1981, why did the shaft-crowding machine be used on the Qinghai-Tanghe wheel, and 2 was the servant? In 1984, the first batch of ships on the ship, such as the autumn river, was built. After using the shaft generator, 3 after the investigation and economic arguments decided to build the ship after re-use, 4 ship auxiliary machine burning heavy oil prospects, how to buy five 14001's hand ship after the name changed to Taohe wheel, etc. Maersk then built a 3,500 container ship. A shaft generator and a turbine generator were installed on the ship; in 1993, our company installed a 3,0001 container ship on the FIHKEMARVLrLKiv 3800TEUH container ship, and the Jiade network owner built a 3,0001 container generator. The power is 970 to let Jia; in 1996, 03, when you entered 51 to build a 5250 ding container ship, the company was built at the Japan Nagasaki Shipyard to develop a flammable, smashing machine. The most typical is the 6-axis shaft generator. The power is 2 496, 1 ​​container ships. With a power of 2100, your shaft generators have seen a few examples to show the attitude of foreign ship owners to the use of shaft generators for newbuildings. When their new shipbuilding adopts shaft generators, they will be weighed by various arguments and trade-offs. The shaft generators have been loaded since the early 1970s. It has been 30 years old. This has already indicated that the conclusion is 1 pair, new. The shipbuilding used the shaft belt hairpin machine to make a review. At the same time, it also put forward our view. The shaft generator is in the 03. After passing the road, the boat of the Anzhen shaft generator has more than 5 ships. Except for the Tangling River, the shaft generator is still in normal operation. Even if a fault occurs, it can be repaired in time. Especially on some ships, the shaft generator has already relied on the thoughts. The use of shaft generators should be considered comprehensively. For example, the ship speed requires the power matching of the main engine's Majiu shaft generator. Do not take off the shaft generator when the ship is in the boat. In another sense, the shaft generator is used. It can diversify the ship power station and reflect the technical level and management level of a company. The shaft generator has a good prospect in the medium-sized container ship. We believe that the 030 will also evaluate the ship shaft generator device with reference to the generator shaft reference generator. Tiancheng. 198925 static frequency converter type high power shaft generator system junction
1.Welding materials
In
Welding, substances called filler materials or consumables are used. As the
name implies, these substances provide filler or a body of molten materials
that provides a strong bond to be formed between the base metals used. Most
welding processes will also require some form of shielding to protect both the
main components and filler from being oxidized during the process.
The
type of welding materials used during welding depends on the nature of the job
intended. Electrodes draw the necessary energy in order to perform welding
applications. Luoyang Golden Egret Company has any kind of welding materials
include CTC Welding Rod /rope, SCTC welding rod/rope, TC electronic welding rod,
Ni-based welding rod, flux-cored Welding Wires, solid welding wires and etc.
Welding
can be applied in different kinds of industries such as building and
construction, oil and gas, marine, power generation, steel, mine tools,
automobile, transportation and etc.
2. Welding rod
1)Cast tungsten carbide based tubular
rod
The
hard phase of the rod is cast tungsten carbide which leads to higher hardness
and better wear-resistance.
Wear
resistance: the wear resistance is 6-7 times better than others. Tested by ASTM
G65
Mainly
used for Mining machinery, Geological tools, Petroleum drilling tools etc, by
Oxy-Acetylene with weak carburizing flame.
Product
recommendation:
GT1103
(CTC, 60-80 mesh),
GT1103-1(CTC, 20-30 um),
GT1103-2(CTC,
40-60 um)
2)The hard phase of tube rod is carbide
pellets which leads to higher impact resistance and better wear resistance than
CTC cloase rod.
Wear
resistance: the wear resistance is 6-7 times better than others. Tested by ASTM
G65 wear test.
Mainly
used for mining machinery. Geological tools etc; by Oxy-acetylene with weak
carburizing flame.
Product recommendation:
GT2102 (Cemented carbide grit, 30-60mesh)
GT2102-2(Cemented carbide grit, 30-40mesh)
GT2102-3(Cemented carbide grit, 40-60mesh)
3)Tube rod is composited by Cemented carbide
pellets, Spherical CTC and CTC. The layer has higher impact resistance, better
wear resistance and good fluidity than other rods.
Wear resistance: the wear resistance is 6-7
times better than others. Tested by ASTM G65.
Mainly used for oil method drill bits, such as
Tri-cone bit, Steel tooth bit, PDC bit, etc. By Oxy-Acetylene with weak
carburizing flame.
Product recommendation:
GT3302 (carbide pellets, 20-40mesh)
GT3302-1(carbide pellets, 14-40um)
4)The hard phase of the rod is monocrystal WC,
the welding layer has a higher wear resistance and better impact resistance.
The wear resistance is 6-7 times better than
others, tested by ASTM G65 method.
Mainly used for the repair and strength for oil
drills bits, such as PDC bit diameter holding by Oxy-Acetylene with weak
carburizing flame.
Product recommendation:
GT4104 (Monocrystal WC, 80-200mesh)
3. Welding Rope
Made
form mixture of CTC and self-fluxing nickel alloy covering on nickel wire. The
CTC is in spherical or irregular with good wear resistance; the nickel alloy is
in spherical or nearly spherical shape with good wettability and erosion
resistance and better corrosion resistance than tubular rod.
Recommend
to use Petroleum drilling tools, Concrete mixing blade, Mud pump, Coal sluice,
Coal drill pipe, Tunnel drilling machinery etc.
By
Oxy-Acetylene Welding with weak carburizing flame.
Product
recommendation:
GS110450N
(CTC, 4mm, HRC 47-55)
GS110550N
(CTC, 5mm, HRC 47-55)
GS110650N
(CTC, 6mm, HRC 47-55)
4. Welding Bar
The
rod is sintered by CTC and Ni-based powders. The CTC(Cast Tungsten Carbide) is
in irregular or spherical shape with better wear resistance and the nickel
alloy is in spherical or nearly spherical shape and has good wettability with cast
tungsten carbide. The cladding layer has a higher impact resistance and better
wear resistance.
Its
wear resistance and corrosion resistance is between tube rod and flexible rope.
Mainly
used on the Steel PDC bit, Concrete mixer blade, Mud pump, Miner chute, Miner
drill stem and Mechanical parts of Tunnel rock drill machine etc.
Welded
by Oxy-Acetylene with weak carburizing flame.
Product
recommendation:
GD4025253-3(CTC, SCTC, 4*600/6*600)
GD4030303-3(CTC,
SCTC, 4*600/6*600)
5. Welding wire
Intensified molybdenum titanium vanadium
composite chromium carbide welding wire can improve layer`s bonding strength
and tenacity. This wire can use for multilayer welding which has no peel off,
and it can maintain good wear resistance under certain impact working condition.
Product recommendation:GSQD671Mo-4(1.6mm)
Medium carbon and high chromium wear resistance welding wire has a higher
hardness, stronger wear resistance, and excellent toughness by adding a certain
amount of molybdenum alloys and boride. It has a better impact resistance and
strip resistance than high chromium cast iron type materials
Product recommendation: GSQD621Mo-4(1.6mm)
With
high sphericity & excellent alloy organization, cemented carbide pellet is
mainly used in welding, as an adding material of PTA Powder , tubular welding
rod, to improve the wear resistance of the workpieces greatly.
Product recommendation: GQ06
Cemented
carbide grit with different percent of cobalt has good abrasive resistance and
is widely used for making grinding, polishing and cutting tools.
Product
recommendation: GS08A
Weld Materials,Tubular Welding Rod,Welding Electrodes,Stainless Steel Welding Rod Luoyang Golden Egret Geotools Co., Ltd , https://www.xtclasercladding.com
