CN201902188U

CN201902188U - Integral type pumping well head device

Info

Publication number: CN201902188U
Application number: CN2010206047314U
Authority: CN
Inventors: 刘守华
Original assignee: YANCHENG YANGBIAO PETROLEUM MACHINERY CO Ltd
Current assignee: JIANGSU YANGBIAO PETROLEUM MACHINERY CO., LTD.
Priority date: 2010-11-15
Filing date: 2010-11-15
Publication date: 2011-07-20
Anticipated expiration: 2020-11-15

Abstract

The utility model relates to an integral type pumping well head device which comprises a four-way valve body, two end covers and two groups of polish rod sealers, wherein the two end covers are respectively arranged at the left end and the right end of the four-way valve body, and the two groups of polish rod sealers are respectively arranged in channels at the left side and the right side of the four-way valve body; each polish rod sealer consists of a gate, a sealing part, a valve rod and an anti-rotation pin; each sealing part is arranged on one inward end of each gate, an installation hole with an L-shaped section is arranged at the other outward end, and the shape of one end of each valve rod extending into the installation hole is adaptive to that of the installation hole; the other end of each valve rod penetrates through the end covers; and one end of each anti-rotation pin is fixed on each end cover, the other end stretches into the gate and is clearance fit with the gate, and the position of the anti-rotation pin is deviated from the central line of the gate. The integral type pumping well head device adopts an integral structure, has the characteristics of small volume, compact structure, less material consumption, and fewer leakage points, and is especially suitable for being used in a pumping well head, achieves reliable sealing and is simple in maintenance.

Description

A kind of monolithic mouth of pumped oil well device

Technical field

The utility model belongs to the petroleum machinery technical field, particularly a kind of monolithic mouth of pumped oil well device.

Background technology

In the oil exploitation process, every cover low pressure oil well head all must be installed a cover mouth of pumped oil well device, the mouth of pumped oil well device all is made up of tubing head and production tree, tubing head is made up of oil pipe four-way, boll-weevil hanger, crossover flange and valve, production tree is made up of crossover sub, cross four-way, polished rod seal and packing box, the mouth of pumped oil well device of existing use exists drawbacks such as volume is big, loosely organized, consumptive material is many, leakage point is many, serious waste metal material.

Summary of the invention

For overcoming above-mentioned the deficiencies in the prior art part, this use is novel to provide that a kind of volume is little, compact conformation, consumptive material is few, leakage point is few monolithic mouth of pumped oil well device, satisfying under the prerequisite of function of use, has saved raw material to the utmost.

The utility model comprises four-way valve body, two end caps and two groups of polished rod sealers, and two end caps are installed in two ends, the four-way valve body left and right sides respectively, and two groups of polished rod sealers are separately positioned in the passage of the four-way valve body left and right sides; Polished rod sealer comprises flashboard, seal, valve rod, stop pin; The inside end device of flashboard has seal, and its outside other end has the L-shaped installing hole in cross section, and the shape that stretches into interior end shape of installing hole and installing hole of valve rod is suitable; The other end of valve rod passes end cap; One end of stop pin is fixed on the end cap, and the other end stretches in the flashboard and matched in clearance with it, the center line of the position deviation flashboard of stop pin.

Be provided with filler between above-mentioned valve rod and the end cap, and push down by gland.

The beneficial effects of the utility model have been: adopt monolithic construction, have that volume is little, a compact conformation, consumptive material is few, leakage point is few characteristics, be particularly suitable for using in the mouth of pumped oil well, sealing reliability, safeguard simple.

Description of drawings

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

Fig. 2-1 is the structural representation of the four-way valve body in the utility model;

Fig. 2-2 is the left view of Fig. 2-1;

Fig. 2-3 is the vertical view of Fig. 2-1.

Fig. 3-1 is the structural representation of the flashboard of the utility model;

Fig. 3-2 is the right view of Fig. 3-1;

Fig. 4 is the stop pin structural representation of the utility model;

Fig. 5-1 is the end cover structure schematic diagram in the utility model;

Fig. 5-2 is the left view of Fig. 5-1.

The specific embodiment

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

Referring to each accompanying drawing.Left and right two end caps 8 of the present utility model are installed in the two ends, the left and right sides of four-way valve body 4 by bolt 14 and nut 15, are provided with O-ring seals 7 between the two.Flashboard 5, seal 6, valve rod 9 and the stop pin 10 that constitutes polished rod sealer is installed in the passage of the left and right sides of four-way valve body 4; Flashboard 5 inside end devices have seal 6, and its outside other end has the L-shaped installing hole in cross section 19, and the shape that stretches into end shape in the installing hole 19 and installing hole 9 of valve rod 9 is suitable, and its valve other end passes end cap 8; One end of stop pin 10 is fixed on the end cap 8, the other end stretches in the flashboard 5 and matched in clearance with it, the center line of the position deviation flashboard 5 of anti-pivot pin, to guarantee that flashboard 5 axial rotation can not take place, can only be to the inboard or the outside moving linearly of four-way valve body 4, thus the position of flashboard 5 is remained on the correct position.

Between valve rod 9 of the present utility model and the end cap 8 filler 11 is housed, gland 13 stretches into end cap 8 and pushes down filler 11 outside end cap 8.Gasket ring 16 and gasket ring 3 are equipped with respectively in the place, upper and lower two passwaies of four-way valve body 4.

The end face of the utility model four-way valve body 4 is equipped with bolt 17 and nut 18, is used to connect packing box and bottom bolt 2 and nut 1 are housed; The bottom of four-way valve body 4 is provided with bolt 2 and nut 1, is used to connect other parts of inlet device.

The course of work of the present utility model is as follows:

Open the dress attitude, promptly normal operating conditions rotates counterclockwise valve rod 9, makes the outer side shifting of flashboard 5 to four-way valve body, and the sucker rod (not shown) that is installed in seal 6 and oil rig on the flashboard 5 maintains a certain distance, and sucker rod moves up and down freely.

Closed condition, it is maintenance state, when needs close well servicing, clockwise rotate valve rod 9, flashboard 5 is to the medial movement of four-way valve body 4, and the seal 6 that is installed on the flashboard 5 fits tightly with sucker rod, under the common sealing function of O-ring seals 7 on the O-ring seals on the flashboard 5, the end cap 8 and filler 11, downhole fluid is sealed up for safekeeping in the inner chamber of four-way valve body, carries out maintenance activity this moment.

Claims

1. monolithic mouth of pumped oil well device, it is characterized in that comprising four-way valve body (4), two end caps and (8) two groups of polished rod sealers, two end caps (8) are installed in four-way valve body (4) two ends, the left and right sides respectively, and two groups of polished rod sealers are separately positioned in the passage of four-way valve body (4) left and right sides; Aforementioned polished rod sealer comprises flashboard (5), seal (6), valve rod (9), stop pin (10); The inside end device of flashboard (5) has seal (6), and its outside other end has the L-shaped installing hole in cross section (19), and the shape that stretches into interior end shape of installing hole (9) and installing hole (9) of valve rod (9) is suitable; The other end of valve rod (9) passes end cap (8); One end of stop pin (10) is fixed on the end cap (8), and the other end stretches in the flashboard (5) and matched in clearance with it, the center line of the position deviation flashboard (5) of stop pin (10).

2. monolithic mouth of pumped oil well device as claimed in claim 1 is characterized in that being provided with filler (11) between valve rod (9) and the end cap (8), and is pushed down by gland (13).