Performance requirements of steam turbine blades, the difference between steam turbine impellers and

It has sufficient mechanical properties and anti-denaturation properties at room temperature and high temperature, and has high anti-vibration attenuation ability; High tissue stability; Good corrosion and erosion resistance; Good process performance.

Summary. A steam turbine impeller is a wheel equipped with blades, which consists of multiple blades with the same cross-sectional shape, and its role is to convert the pressure energy of gasoline into rotational energy. The blade is an important component in the steam turbine, which is responsible for converting the energy of the compressed gas into rotational energy, and obviously the function of the impeller and the blade is different.

The function of the impeller is to make the blades rotate according to the specified trajectory, while the role of the blades is to convert the pressure energy of gasoline into rotational energy.

The steam turbine impeller is a wheel equipped with blades, which is composed of multiple blades with the same cross-sectional shape, and its function is to convert the pressure energy of gasoline into rotational energy. The blade is an important component in the steam turbine, which is responsible for converting the energy of the compressed gas into rotational energy, and obviously the function of the impeller and the blade is different. The function of the impeller is to make the blades rotate according to the specified trajectory, and the function of the blades is to convert the pressure energy of the gasoline yard into the rotation energy of the hidden beam.

Fellow, I really didn't understand, I can be more specific.

Steam turbine impeller: Steam turbine impeller is a rotating body connected by several blades, which is the first power component of the steam turbine and is used to transfer power. Steam Turbine Blades:

Steam turbine blades are the main components of steam turbine impellers, which are made of complex structures and a variety of materials, and have the characteristics of high strength and good wear resistance of cavity skin, so that the steam turbine runs stably and reliably. Summary: The steam turbine impeller is the most powerful part of the steam turbine, which is a rotating body composed of multiple blades; The turbine blade is the main component of the turbine impeller, which has good strength and wear resistance.

Summary. Hello Kiss Hello I am glad to answer for you, Hello Kiss Hello The long blades of the steam turbine are designed into a large unit with bends in order to increase the power, and the blades are often made very long. With the increase of blade height, when the leaf height ratio has a small value (generally less than 10), the difference of circumferential velocity and vapor flow parameters at different blade heights can no longer be ignored.

At this time, the cross-section profile of the blade must change accordingly along the blade height, so that the blade is twisted and deformed, so as to adapt to the variation law of vapor flow parameters along the blade height and reduce the flow loss. At the same time, in order to improve the distribution of tensile stress caused by centrifugal force along the leaf height, the cross-sectional area of the leaf body should also be gradually reduced from the root to the top. I hope mine can help you. Have a great day

Hello dear hello I am glad to answer for you, dear hello steam turbine hand long blades are designed into a bent large unit in order to increase the power, often the blades are made very long. With the increase of blade height, the difference of circumferential velocity and vapor flow parameters at different blade heights cannot be ignored when the blade height-to-bridge-hole ratio has a small value (generally less than 10). At this time, the cross-sectional profile of the leaf body must change accordingly along the leaf height, so that the leaf is twisted and deformed, and the flow loss can be reduced by adapting to the variation law of the vapor flow parameters along the leaf height. At the same time, in order to improve the distribution of tensile stress caused by centrifugal force along the leaf height, the cross-sectional area of the leaf body should also be gradually reduced from the root to the top.

I hope mine can help you. Have a great day

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1. There are two kinds of steam turbines: impulse steam turbine and reactionary steam turbine.

2. Static blade action: steam expands in the flow channel formed by the blade, and the energy of the high-temperature and high-pressure DAO vapor is converted into kinetic energy.

3. The moving blades of the impulse turbine: the steam does not expand in the moving blades, but is impulsed, transmitting the kinetic energy of the steam to the rotor, driving the rotor of the steam turbine to rotate, so as to drive the generator to generate electricity through the coupling.

4. If it is a reactionary steam turbine, it is not only impulsed in the moving blades, but also the expansion of steam.

--The functions of the two are different.

The steam from the static blades is converted into mechanical energy that drives the rotor of the turbine generator to rotate in the moving blades, and drives the generator to generate electricity or rotate with other equipment.

The steam turbine blade material has sufficient mechanical properties and anti-degeneration performance at room temperature and high temperature, and has high anti-vibration attenuation ability; High tissue stability; Good corrosion and erosion resistance; Good process performance.

Requirements for metal materials for superheater tubes and reheater tubes.

1. It has sufficiently high creep strength, long-lasting strength and long-lasting plasticity, and has relatively stable structure and performance during high-temperature and long-term operation. For alloy steel pipes, the creep deformation of the outer diameter should not be greater than that during the entire service life; For carbon steel pipes, it should not be greater than.

2 has high oxidation resistance, the material used should belong to 1

The oxidation rate at the operating temperature should be less than that of a fully oxidation-resistant material.

Therefore, there is no comparison between the two: because the occasion is different, the physical and chemical properties required are different. The material composition and processing technology are different.

The blade materials of different stages of the same steam turbine are different, and the materials of superheater tubes and reheater tubes of boilers with different parameters are also different.

So you should add a few conditions to your question.

If the cost is alone, the material of the turbine blade should be higher.

The standard for automobile engine impeller parts is the inspection standard, that is, to protect the electrical equipment outside the vehicle from abnormal operation due to electromagnetic radiation generated by the vehicle.

The best standards for auto parts: GB T18655-2010, GB34660-2017, GB T19951-2005 are applicable to both vehicles and parts. Among them, the two standards of GB14023 and GB T18387 implemented by the automobile industry's strong car system are to protect the receiver outside the vehicle, that is, to protect the electrical equipment outside the vehicle from abnormal mold width due to electromagnetic radiation generated by the vehicle.

In 2017, the new mandatory standard GB34660-2017 increased the requirement for vehicles and their electrical systems to withstand external electromagnetic disturbances. The TPMS testing standard is replaced by GB26149-2017 for GB T26149-2010, which has become a mandatory inspection item. The BMCS test standard GB T30513 is only suitable for M1 vehicles equipped with an ABS system.

Check the cartridge. Solution: Open the top cover of the printer, if the cartridge trolley can move from the side to the middle position, take out an ink cartridge, and then close the top cover for inspection.

If the printer's power indicator is solid back, the cartridge you removed is faulty and you can replace it.

If the power indicator of the printer is still flashing, you can install the removed ink cartridge into the printer, and take out the other ink cartridge for checking. Replace them all;

2. Check whether the printer is jammed. If the paper is jammed, you can open the back cover of the printer, see the paper and slowly take it out;

3. Check whether the printer is short of paper. Press the power button of the printer to confirm whether the printer is flashing because of lack of paper, and if so, add paper.