Beam-pumping unit and energy-saving control method used for beam-pumping unit
A beam pumping unit and energy-saving control technology, applied in the field of energy-saving control and beam pumping units, can solve the problems of high energy consumption and low system efficiency, and meet the control requirements, good follow-up performance, and transition time. short effect
Active Publication Date: 2018-06-15
BEIJING JIUZUN ENERGY TECH
View PDF7 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] The technical problem to be solved by the present invention is to solve the problems of low system efficiency and large energy consumption in the beam pumping unit in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0083] Such as figure 1 As shown, the first embodiment provides a beam pumping unit, the pumping unit includes an above-ground part and an underground part, the above-ground part is mainly the pumping unit body, and the underground part mainly includes a plunger and is used to move the coal seam The liquid is pumped to the oil pump 11 on the ground. The pumping unit body includes a swingable beam 1 and a motor 3 for driving the beam 1 to swing. One end of the beam 1 is connected to the motor 3, and the other end is connected by a plunger. Connected with the oil well pump 11, the plunger is installed vertically in the coal seam well. Driven by the motor 3, the beam 1 drives the plunger sucker rod 10 to reciprocate vertically in the coal seam well by swinging, so that the oil in the oil well pump 11 The liquid is pumped to the surface.
[0084] The aboveground part of the pumping unit described in this embodiment is as figure 2 As shown, wherein, the middle part of the beam 1...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the technical field of coalbed gas mining device, in particular to a beam-pumping unit and an energy-saving control method used for the beam-pumping unit. A motor of the beam-pumping unit is connected with a frequency-converting control mechanism and an intermissive pumping control mechanism; a moment-changing balance mechanism is installed on a walking beam of the beam-pumping unit, and the frequency-converting control mechanism is carried out on the speed of the motor by sinusoidal pulse width modulation method when the motor is operating normally; the intermissive pumping unit is used for confirming a preset value of the intermissive pumping, and drives the motor to switch to an intermissive operating mode when the efficiency of an oil well pump is not more thanthe preset value of the intermissive pumping; and the moment-changing balance mechanism is correspondingly used for changing a balancing torque of the walking beam when the motor is operating normally or under the intermissive pumping mode, then the walking beam is on dynamic balance. In addition, based on the beam-pumping unit, the energy-saving control method used for a pumping unit is provided. The beam-pumping unit and the energy-saving control method used for the beam-pumping unit can solve the problems of low system efficiency and high energy cost existed in beam-pumping unit of the prior art.
Description
technical field [0001] The invention relates to the technical field of coalbed gas exploitation equipment, in particular to a beam pumping unit and an energy-saving control method for the pumping unit. Background technique [0002] At present, rod-type pumping equipment accounts for more than 90% of my country's coalbed methane mining equipment, and beam pumping units are the main ones. The main advantages of the beam pumping unit are simple structure, convenient operation, long-lasting work, high reliability, good adaptability to working conditions, and easy manufacture. Most of the power machinery used by the beam pumping unit is an electric motor, so the increase in the power consumption of the pumping unit is also one of the cost increase items of coalbed methane exploitation. With the continuous discharge of formation water in the coalbed methane well, the system efficiency of the pumping unit continues to decline, thereby increasing the loss of electric energy. [00...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00
CPCE21B43/121E21B43/127
Inventor 顾军宁志波杨森贾飞王胜杰
Owner BEIJING JIUZUN ENERGY TECH