Double-stator single-rotor screw motor consubstantial pump

A screw motor and single rotor technology, applied in the direction of rotary piston pumps, pumps, rotary piston machinery, etc., can solve the problems of unreasonable high-pressure liquid nozzle angle, single function of screw drill, etc.

Inactive Publication Date: 2011-02-16
KALAMAYI HONGJI ENG CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of the single function of the screw drill in the prior art, this solution provides a double-stator single-rotor casing type screw drill
In order to solve the problem of the unreaso

Method used

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  • Double-stator single-rotor screw motor consubstantial pump
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  • Double-stator single-rotor screw motor consubstantial pump

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Embodiment Construction

[0021] Such as figure 1 , 2 As shown, the twin-stator single-rotor screw motor homogeneous pump in this scheme includes the outer stator 1 on the outer layer, the rotor 2 in the middle and the inner stator 3 in the center. The inner surface of the outer stator 1 is an inner spiral made of rubber, and the inner stator 3 The surface of rotor 2 is an outer helix, the outer surface of the rotor 2 is an outer helix, and the inner surface is an inner helix. Among them, the number of inner spiral heads is one more than the number of outer spiral heads, that is, the number of inner spiral heads in outer stator 1 is one more than the number of outer spiral heads in rotor 2, and the number of inner spiral heads in rotor 2 is one more than the number of outer spiral heads in inner stator 3. . In this scheme, the ratio of the number of screw heads in contact with the outer stator 1 and the rotor 2 is 8:7, and the ratio of the number of screw heads in contact with the rotor 2 and the inn...

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Abstract

The invention relates to the field of machines, and particularly discloses a double-stator single-rotor screw motor consubstantial pump, comprising a tubular outer stator with inner spiral and a rotor arranged in the outer stator, wherein the rotor is internally provided with an inner stator with outer spiral; the outer surface of the rotor is provided with outer spiral and the inner surface thereof is provided with inner spiral, wherein the ratio of the spiral head numbers on the contact surface of the outer stator to the rotor is N:N+1, the ratio of the spiral head numbers on the contact surface of the rotor to the inner stator is N:N-1 and N is more than or equal to 2. The scheme uses a spiral channel between the rotor and the inner stator to form hydraulic power output, uses a spiral channel between the rotor and the outer stator to form a liquid absorbing loop, thus leading the double-stator single-rotor screw motor consubstantial pump to have functions of power output and liquidabsorption simultaneously, and finishes two types of operation by one time. The scheme has better sand prevention capability and stronger adaptability for sand, wax, gas, water and scale contained information fluid, thus being capable of reducing the frequency of maintenance and repair and leading the development cost of an oil field to be greatly reduced.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a power device that uses liquid pressure to simultaneously realize the motor driving function and the screw pump suction and discharge function. Background technique [0002] The screw drill is a power device powered by drilling fluid (mud, clean water) as the power medium. It is essentially an energy conversion device that converts liquid pressure energy into mechanical energy. The screw drill is generally composed of a bypass valve, a screw motor (rotor and stator), a universal joint, a bearing and a drive shaft, and its core is a screw motor. When the drilling fluid flows into the motor, a certain pressure difference is formed at the inlet and outlet of the motor, thereby pushing the rotor to rotate around the axis of the stator, and the speed and torque are transmitted to the drill bit through the cardan shaft and the transmission shaft, realizing the conversion of pressure energy into...

Claims

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Application Information

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IPC IPC(8): F04C2/107
Inventor 张红伟鲁斌赵俊生
Owner KALAMAYI HONGJI ENG CONSTR
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