New trend of application and development of elastic coupling

Many people have heard of elastic couplings, but they don’t know the new trends in the use and development of elastic couplings. According to understanding, elastic couplings can be divided into different types. Content, I hope that we will have a harvest!

New trends in the development of flexible couplings

　　With the drying up of coal, oil, natural gas and other fossil power within the scope, as well as environmental problems such as warming and acid rain, the two-layer pressure of power and environment has promoted the adjustment of my country's power supply structure and changed the situation of its transition to thermal power.The "Renewable Power Law" issued by the Chinese government in 2005 and implemented in 2006 and other regulations and plans support the development of new power.As an important part of new power, wind energy is an inexhaustible, clean and non-polluting renewable power. It is called clean, green and environmentally friendly power.Compared with conventional thermal power, wind power has many advantages. For example, wind power can reduce the emission of harmful substances such as carbon dioxide.On average, every installation of a wind turbine with a unit capacity of 1MW can reduce the emissions of 20 tons of carbon dioxide, 10 tons of sulfur dioxide and 6 tons of nitrogen dioxide each year.
In the development of various new power sources, wind power generation is a power generation method with relatively sophisticated skills and conditions for large-scale development and commercial development.Compared with other new powers, wind power has some outstanding advantages:
①Wind energy is safe and clean.
②Compared with nuclear power, it has the advantages of safety and no pressure on original data.
③Compared with solar power (photovoltaic), it has the advantages of cost and large planning and grid-connected power generation.
④Compared with biomass power generation, it has power advantages.
The amount of wind energy in is huge and will never dry up, about 2.74X1. The available wind energy is 2X1OMW, which is 10 times larger than the total amount of water energy that can be developed and used on the earth, and also greater than the sum of solid fuel and liquid fuel energy. .With the development of the economy, the wind energy market has also developed rapidly.In the past five years, the wind energy market has increased at a rate of 5% every year.It is estimated that in the next 40, the wind energy market will increase by 2025% every year.Now, the cost of wind power generation has dropped to one-fifth of what it was in 25.With the advancement of skills and the development of environmental protection operations, wind power generation in the commercial sector can thoroughly compete with coal-fired power generation.
my country has a vast territory, a long coastline and abundant wind energy resources.According to estimates of relevant research results, my country’s wind energy is second only to Russia and the United States, ranking third. Based on the data of more than 900 meteorological stations across the country above the ground 100m above the ground, the national average wind power density is 2W/m32.26, and the total wind energy resources The reserve is about 2.53 billion kW, the advantageous land energy reserve that can be developed and used is 7.5 million kW, and the offshore wind energy reserve that can be developed and used is 10 million kW, which is about 2000 billion kW.If the annual on-grid power of Luzhun Power is calculated based on the equivalent full load of 5000 hours, it can provide 2500 billion kilowatt-hours of electricity per year, and the annual on-grid power of Haizhi Power is calculated based on the equivalent full load of 1.8 hours, which can provide 2.3 trillion kilowatt-hours of electricity per year. Calculate 06 trillion kilowatt-hours of electricity.This is equivalent to 2.83% of my country's electricity generation of 81 trillion kilowatt-hours in XNUMX, and the space for wind energy utilization is huge.
The installed capacity of wind power in my country has entered a period of rapid increase since 2003. Especially under the support of the Renewable Power Law and related regulations and guidelines, the total installed capacity and newly added installed capacity in 2006 reached 260 million kilowatts and 134 million kilowatts. Separation increased by 105%, 166% year-on-year.In addition, the single-machine installed capacity of my country's wind power equipment continues to increase. A brief calculation shows that the average single-machine installed capacity in 2006 has now reached more than 900 kilowatts.The planned installed capacity of wind power in my country during the Eleventh Five-Year Plan reached 500 million kilowatts, and the compound increase rate reached 4% in four years. From the perspective of wind power planning during the Eleventh Five-Year Plan period in various provinces, my country’s installed wind power capacity may far exceed 28 million in 2010. Kilowatts, the preservation is estimated to exceed 500 million kilowatts, and the compound increase rate will exceed 1000%.
Because of the lack of fossil resources and the increasingly serious environmental pollution, wind energy as a clean and renewable power source has received full attention, attracting a large number of researchers and manufacturers to participate.Europe and the United States have long announced wind turbines with a single-unit capacity of up to megawatts, and their skills are relatively sophisticated, with relatively complete planning theories and rich planning experience, and the degree of commercialization has been quite planned, and they are now in a significant advantage. And dominance.The Rockflitz wind turbine test site has been established in Colorado, the United States, in addition to the American Wind Energy Research Center; the Riso laboratory in Roski Keele in Denmark; the Dutch Wind Energy Research Center in the Netherlands; and Wufeng, Anzhonghe Koumoto There are three test sites in Kanazawa; Germany has a test site on the North Sea Palermo island; Canada has an Atlantic wind turbine test station on Prince Edward Island.Large-scale, variable-speed operation, variable pitch, and gearless have now become a new trend in the development of wind power equipment.
my country now has more sophisticated methods and tools for the planning and functional accounting of large-scale wind turbine blades, and among the key parts of wind turbines, speed-increasing boxes, generators, and towers have been localized.The high-speed couplings of large-scale wind turbines are all imported, and independent planning is still blank.

Flexible coupling directly with drive

Flexible coupling directly with drive
The smoothness of the stainless steel gear pump is actively reached by the transported liquid, so there is no need to add a smoothing liquid during daily operations.The use of elastic couplings to transmit power can compensate for small errors caused by equipment.When the pump is subjected to inevitable hydraulic shocks, it can play an outstanding buffer effect.Stainless steel gear pump structure Stainless steel gear pump is a horizontal reversing pump, mainly composed of pump body, gear, bearing seat, valve, bearing and sealing equipment.The pump body, bearing seat, etc. are made of gray cast iron, and the gears are made of carbon steel. The bearing seat can also be made of copper material or stainless steel material according to the special needs of the user.
KCB-300～960 pumps use mechanical compact equipment, and the bearings use single-row radial ball bearings. KCB—18.3～83.3 pumps are composed of three oil-resistant rubber rings and a retaining ring separated by the center liner. The two nuts on the gland are adjusted to adjust the degree of sealing. The bearings are copper-based powder oil-impregnated bearings.In addition, stainless steel gear pumps can use packing seals with flexible graphite with good elasticity, high temperature and low temperature resistance, stable chemical properties and self-smoothing function as the packing.The stainless steel gear pump is equipped with a valve. When the pump or the discharge pipeline is faulty or the discharge valve is completely closed by mistake, and the high pressure and high pressure shock occurs, the valve will actively open to remove part or all of the high pressure liquid and return to the low pressure chamber. It has a maintenance effect on pumps and pipelines.The flexible coupling is directly connected with the drive motor, and the equipment is installed on a common cast iron chassis.In stainless steel gear pumps, dry gas seals and touch mechanical seals are used in tandem. The mechanical seal is the primary seal and the dry gas seal is the secondary seal.Nitrogen is introduced between the dry gas seal and the main seal to ensure that the main seal has a certain back pressure, which extends the service life of the main seal of the stainless steel gear pump.

　The above introduces the use of flexible couplings and the development of new trends. After reading it, we should have a certain understanding of it. Interested friends can also learn more about the other information we have collected.