Dynamic pumping unit balance adjusting device

A technology of balancing device and oil pumping unit, which is applied in the direction of machine/engine, mechanical equipment, liquid variable capacity machinery, etc. Simple, low cost, high liquid utilization effect

Inactive Publication Date: 2017-06-13
HARBIN UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this device only installs a liquid storage tank at the end of the beam, so it can only perform unidirectional balance adjustment to increase the side weight of the counterweight. When the imbalance is caused by the counterweight being heavier than the suspension point load, the device Unable to adjust the balance; the catheter extends from the fixed end on the ground to the

Method used

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  • Dynamic pumping unit balance adjusting device
  • Dynamic pumping unit balance adjusting device
  • Dynamic pumping unit balance adjusting device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Specific embodiment one: such as figure 1 Shown is the stop adjustment method using the gravitational potential energy when the electronic control valve (5) is used. The basic principle is to use the gravitational potential energy to control the liquid flow direction by changing the position of the two liquid storage tanks. When adjusting the balance, the operator can obtain the current volume of the two liquid storage tanks according to the liquid volume measuring device (7) or the connecting pipe level gauge (8), and calculate how much liquid needs to be exchanged according to the current balance. When the estimated liquid level reaches the specified position during the process, the adjustment is stopped.

[0033] If it is necessary to increase the liquid volume of the first liquid storage tank (1), when the pumping unit is stopped, keep the beam of the pumping unit as the first liquid storage tank (1) at a low point and the second liquid storage tank (2) ) At the high ...

Example Embodiment

[0034] Specific embodiment two: such as figure 2 Shown is the non-stop adjustment method that uses the potential energy of gravity when the electronic control valve (5) is used. The operator can obtain the current liquid volume of the two liquid storage tanks according to the liquid volume measuring device (7) or the connecting pipe level gauge (8), and calculate how much liquid needs to be exchanged according to the current balance, and estimate the liquid volume during the adjustment process. When the bit reaches the specified position, the adjustment stops.

[0035] If it is necessary to make the liquid flow from the first liquid storage tank (1) to the second liquid storage tank (2), during the up and down movement of the pumping unit, when the first liquid storage tank (1) is in a rising state, and the height is When the liquid storage tank (2) is the same, the electronic control valve (5) is controlled to open through the controller (9). At this time, the liquid in the fir...

Example Embodiment

[0037] Specific embodiment three: such as image 3 Shown is the non-stop adjustment method using the electronic control valve (5) and the bidirectional water pump (6). The catheter (3) of the device is also equipped with a two-way water pump (6). When adjusting the balance, the operator can obtain the current two storage liquids according to the liquid quantity measuring device (7) or the connecting pipe level gauge (8). The liquid volume of the tank, and calculate how much liquid needs to be exchanged according to the current balance degree, and stop the adjustment when the estimated liquid level reaches the specified position during the adjustment process.

[0038] If it is necessary to increase the liquid volume of the first liquid storage tank (1), the controller (9) opens the electronic control valve (5), and at the same time starts the work of the bidirectional water pump (6), controls the rotation direction of the bidirectional water pump (6), and makes the liquid flow Th...

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PUM

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Abstract

The invention provides a dynamic pumping unit balance adjusting device and belongs to the technical field of umping unit balance adjustment. The device comprises a first liquid storage tank, a second liquid storage tank, a liquid guiding pipe, an air guiding pipe, an electric control valve, a bidirectional water pump, liquid volume measurement devices, communicating pipe liquid lever meters and a controller. The first liquid storage tank is fixed to the vicinity of the tail portion of a pumping unit walking beam, the second liquid storage tank is fixed to the vicinity of a horse head on the pumping unit walking beam, the two liquid storage tanks are identical in volume, the lower portions are communicated through the liquid guiding pipe, and the tops of the tanks are communicated through the air guiding pipe. The communicating pipe liquid levers are installed outside the two liquid storage tanks, and the liquid volume measurement devices are installed inside the two tanks. The electric control valve and the bidirectional water pump are installed on the liquid guiding pipe, the controller controls work to make liquid flow between the two liquid storage tanks, and dynamic pumping unit balance adjustment is achieved. The device performs pumping unit balance adjustment in a shutdown state and a non-shutdown state and has the advantages of being simple and reliable in structure, accurate and rapid to adjust, wide in application range, convenient to operate, lower in cost, convenient to maintain and the like.

Description

technical field [0001] The invention relates to a balancing device for an oil pumping unit, in particular to a dynamic balancing device for an oil pumping unit. It belongs to the field of pumping unit balance adjustment. Background technique [0002] Petroleum is an important primary energy source related to national livelihood. At present, the main equipment for oil extraction in oilfields is the pumping unit. At present, beam pumping units are mostly used in major oilfields. The structural composition of the beam pumping unit includes donkey head, beam, beam, connecting rod, crank, balance device, base, reducer, motor and so on. [0003] The oil production process of the pumping unit is divided into an upstroke and a downstroke. During the upstroke, the motor lifts the donkey head, the sucker rod string and the liquid in the well by doing work, and the motor works in the motor state; during the down stroke, the donkey head, the sucker rod string and the liquid in the we...

Claims

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Application Information

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IPC IPC(8): F04B47/14E21B43/00
CPCE21B43/121E21B43/127F04B47/145
Inventor 周封孙瑞李隆郝婷
Owner HARBIN UNIV OF SCI & TECH
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