CN2285836Y

CN2285836Y - Spring energy storage device for pump well

Info

Publication number: CN2285836Y
Application number: CN 96245162
Authority: CN
Inventors: 高生彬; 刘电波; 张传军
Original assignee: No4 Oil Prodn Plant Daqing Petroleum Administration
Current assignee: No4 Oil Prodn Plant Daqing Petroleum Administration
Priority date: 1996-11-04
Filing date: 1996-11-04
Publication date: 1998-07-08
Anticipated expiration: 2006-11-04

Abstract

The utility model relates to a spring energy storage device for a pump well. The utility model solves the problem of big power consumption for mechanical oil production. The utility model is characterized in that a spring is arranged on an inner wall of a working barrel which is positioned on a lower axle bed. After connected by a coupling head in a thread way, a connecting rod and a centralizing rod are arranged in the spring to cause one end of the spring to be contacted with the coupling head. A press cap is connected with one end of the working barrel in a thread way to block the coupling head. The other end of the connecting rod is fixed on an upper axle bed through a pin axle. The utility model has the advantage of easy installation and power saving.

Description

Pumping well spring energy storage device

The utility model relates to the pumping well energy saving device, belongs to a kind of pumping well spring energy storage device.

At present, the pumping well that uses on the oil field all reaches mechanical oil recovery by the driven by motor equilibrium block, and power consumption is all very big, does not reach energy-saving effect.

The purpose of this utility model is exactly to provide a kind of pumping well spring energy storage device that can economize on electricity easy for installation in order to overcome above-mentioned the deficiencies in the prior art.

The technical solution of the utility model is achieved in that this energy storage device comprises horse head or wellhead flange dish, the working barrel inwall of seat on following axle bed placed spring, connecting rod and righting rod are threaded to be placed on by connecting head and make spring one end in contact connecting head in the spring, pressure cap is threaded working barrel one end to stop connecting head, and the connecting rod the other end is fixed in axle bed by bearing pin.

The utility model compared with prior art has following advantage: because last axle bed is connected on horse head or the wellhead flange dish, when down stroke, weight by pumping unit and horse head makes length of spring compressed, changing gravitational potential energy into spring potential energy stores, when upstroke begins (the load maximum of horse head and motor), at this moment the spring energy stored discharges, and helps the acting of horse head and motor, alleviate the load of horse head and motor, reach the purpose of economize on electricity.

Fig. 1 is a structural drawing of the present utility model;

Fig. 2 is that this device is installed in the schematic representation on the horse head;

Fig. 3 is that this device is installed in the schematic representation on the wellhead flange dish.

The utility model is described in further detail below in conjunction with accompanying drawing:

Show by Fig. 1,6 of working barrels are on axle bed 9 down, place spring 7 at working barrel 6 inwalls, connecting rod 3 is threaded to be placed on by connecting head 5 with righting rod 8 and makes spring 7 one end in contact connecting heads 5 in the spring 7, pressure cap 4 is threaded working barrel 6 one ends to stop connecting head 5, and connecting rod 3 the other ends are fixed in axle bed 1 by bearing pin 2.Show that by Fig. 2 and Fig. 3 upper and lower axle bed (1,10) is separately fixed at horse head (flange plate) and oil pumping unit base (underground).

When horse head during at upper dead center, spring 7 is in free state, when down stroke, presses down by the weight of pumping unit and horse head and to promote connecting rod 5 and make spring 7 compressions, changes gravitational potential energy into spring potential energy and stores; When horse head during at lower dead centre, energy stored maximum, when upstroke begins (the load maximum of horse head and motor), at this moment the spring energy stored discharges, and helps the acting of horse head and motor, alleviates the load of horse head and motor, reaches the purpose of economize on electricity.

Claims

1. pumping well spring energy storage device, comprise horse head, wellhead flange dish, it is characterized in that: working barrel (6) inwall of seat on following axle bed (9) placed spring (7), two bars (3,8) be threaded to be placed on by connecting head (5) and make spring (7) one end in contact connecting heads (5) in the spring (7), pressure cap (4) is threaded working barrel (6) one ends to stop connecting head (5), and connecting rod (3) the other end is fixed in axle bed (1) by bearing pin (2).