Jet rotor

Abstract

The invention mainly relates to a jet rotor in the fields of energy development, aircraft engines and the like. The jet rotor tangentially jets a high-energy fluid through a jet pipe on an interior so that the high-energy fluid acts on a thrust wall in a gap between the inner circle of an exterior and the outer circle of the interior to push the interior and exterior to rotate relatively; one of the interior and exterior becomes a rotor; and the rotor drives a load and converts partial energy of the high-energy fluid into the rotation energy of the rotor to replace a turbine. The jet rotor has the beneficial effects that: the jet rotor has the advantages of simple structure, few parts, light weight, short length, high reliability, long service life, high cost performance and high mechanical efficiency, ensures little loss of fluid energy, is easy to manufacture, saves a worm wheel or screw, and can sufficiently and efficiently utilize the fluid energy; and the jet rotor can be applied to the underground power jigs in drilling engineering, various power systems with turbine rotor and the like.

Description

1. Technical field: [0001] The invention mainly relates to a jet rotor in energy development, aero-engine and other fields, and in particular to downhole dynamic drilling tools in drilling engineering and various power systems with turbine rotors. 2. Background technology: [0002] (1) In the field of drilling engineering: downhole power drilling tools refer to bottom hole drilling tools that can convert the fluid energy of mud pump drilling fluid into drilling and rock breaking power. Due to the high speed and high end torque of the downhole power drilling tool, the mechanical drilling speed can be significantly increased, especially when used in conjunction with the PDC bit, the drilling speed will be greatly improved. Downhole dynamic drilling tools have advantages over traditional rotary drilling in terms of increasing mechanical penetration rate, increasing single bit footage, reducing drilling cost per meter, ensuring well quality and drilling safety, etc. To change t...

AI Technical Summary

Problems solved by technology

In terms of performance, it has the characteristics of low speed and high torque, the pressure drop is below 4MPa, the output speed of single lobe (or single head, single line) screw drilling tool is lower than 400r / min, and the output speed of multi lobe screw drilling tool is 90 -150r / min, suitable for drilling with roller cone bits, but the fluid pressure loss is large

[0006] 3. Turbine drilling tool: it has the characteristics of high speed and high torque, no lateral vibration, and high ROP; the all-metal turbo drilling tool is resistant to high temperature and is suitable for deep wells and high temperature environments, but the drilling tool is long, about 15 meters, The application range of the drill bit is small, the processing cost of the turbine blade is high, the installation and adjustment of the axial clearance is cumbersome, and a reduction device is required

The single-stage radial turbine is the core component of the exhaust gas turbocharger. The blades of this single-stage radial turbine are not hollow. The turbine blades have no air cooling system, and they are wrapped in the center of the turbine housing. The heat dissipation effect is poor, especially for gasoline engines. The exhaust temperature of the exhaust gas is too high, the working environment of the turbine blades is extremely harsh, the speed of the turbine is much higher than that of the engine itself, and the turbine must be made light and thin to minimize the turbo hysteresis effect. All exhaust gas turbochargers that are widely used now The turbine blades are the most easily damaged and have a short lifespan. Taking a car with an exhaust gas turbocharger engine as an example, generally the turbocharging effect has dropped significantly at about 30,000 kilometers, and the entire exhaust gas turbocharger is scrapped at about 100,000 kilometers. , that is, the service life of the widely used exhaust gas turbocharger is far less than the service life of the piston engine and the car itself. For example, the service life of a good vehicle diesel engine can reach 800,000 kilometers

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