CN202767935U

CN202767935U - Automatic blowout-prevention deviation-adjusting packer

Info

Publication number: CN202767935U
Application number: CN 201220500418
Authority: CN
Inventors: 卢战峰; 胡建宇; 胡润珠; 董大勇
Original assignee: Grand Celebration Run Xin Petrochemical Industry Science And Technology Ltd
Current assignee: Grand Celebration Run Xin Petrochemical Industry Science And Technology Ltd
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2013-03-06
Anticipated expiration: 2022-09-28

Abstract

The utility model discloses an automatic blowout-prevention deviation-adjusting packer and mainly solves the problems that a spool of the existing packer drops easily and blowout prevention is poor. The packer comprises a valve I, a ball is mounted in the valve I, a valve stem is mounted on the ball, a valve handle is connected with a push rod which is connected with a bearing, the bearing is compacted on a polish rod through a compression spring, one end of the valve handle is connected with a tension spring, the lower portion of the valve I is in threaded connection with a deviation-adjusting ball, a sealing pressing cover I, a flat cushion II and a conical seal which are mounted inside the deviation-adjusting ball are compacted by the valve I, a valve II is connected with the deviation-adjusting ball through a seal II and a flange connecting sleeve, and the flange connecting sleeve is connected with a standard ball valve. The automatic blowout-prevention deviation-adjusting packer has the advantages that the paraffin-removal spool drops less easily, balance of the polish rod is not broken, hermeticity is high, packing replacement is high in efficiency, and accidental blowout can be prevented.

Description

Automatic blowout-prevention tuningout blowout preventer

Technical field

The utility model relates to oil extraction in oil field field oil pumper used blowout preventer, especially automatic blowout-prevention tuningout blowout preventer.

Background technology

In the prior art, pumping production well head device is the visual plant that recovers the oil, and existing pumping production well head is mainly by lower flange, big four, upper flange, little four-way, and valve, wax removal valve and blowout prevention box form.Wax removal valve Main Function is when changing packing or closes well head during the polished rod fracture; Blowout prevention box mainly solves and the effect of polished rod seal box tuningout, and existing wax removal valve is because spool and screw mandrel are coupling type, so there is the spool poor problem of spool balance that easily comes off; The general inner chamber of existing blowout prevention box is cylindrical, and so just causing when changing filler wastes time and energy, the problem of sealing and tuningout weak effect; Existing blowout prevention box can not solve the shut-in well problem when polished rod ruptures suddenly.

Summary of the invention

Existing blowout preventer spool easily comes off, the spool balance is poor in order to solve, change the problem that packing efficiency is low, the blowout prevention function is poor, the utility model proposes a kind of automatic blowout-prevention tuningout blowout preventer, this automatic blowout-prevention tuningout blowout preventer has spool and connects reliable, the spool balance is good, good sealing effect, to change packing efficiency high, the characteristics of blowout prevention better function.

The technical solution of the utility model is: this blowout preventer comprises valve body I, automatic closing ball valve, cone seal body and wax removal ball valve, valve body I inner chamber is equipped with the sealing I successively, spheroid, the plain cushion I, locking nut is equipped with valve rod on the spheroid, valve rod is by the sealing III, the gland II, the valve stem nut sealing; Valve handle is installed on the valve rod, the porose connection push rod of the other end, push rod connecting shaft is held, between push rod and the valve body I Compress Spring is installed, there is nylon jacket to be separated by between push rod and the valve body I, the bearing on both sides is pressed on the polished rod by Compress Spring, and valve handle one end connects extension spring, and the extension spring other end is connected on the spring base on the valve body I; Valve body I upper end is connected by the bolt I with dust cap, between dust cap and the polished rod dust ring is installed; The valve body I has positioning boss near the valve handle bottom; Valve body I bottom is threaded with the tuningout ball, compresses simultaneously the gland I that is installed in tuningout ball inside, the plain cushion II, and cone seal, the valve body II is by the sealing II, and the flange adapter sleeve connects the tuningout ball, and the flange adapter sleeve is by bolt II connection standard ball valve.

The utlity model has following beneficial effect: this automatic blowout-prevention tuningout blowout preventer is owing to adopting such scheme, when polished rod accidental or fracture, can moment close well head, play the effect of unexpected blowout prevention, the effect of playing the sealing polished rod that the cone seal of installing in the tuningout ball is changed, the replacing packing efficiency is high, the standard ball valve arrangement is reliable, has avoided the spool obscission, does not exert an influence for the polished rod balance, in sum, this automatic blowout-prevention tuningout blowout preventer has wax removal spool difficult drop-off, does not destroy the polished rod balance, good seal performance, the replacing packing efficiency is high, can prevent the characteristics of unexpected blowout.This automatic blowout-prevention tuningout blowout preventer energy-conserving and environment-protective synergy has reduced workman's labour intensity, and is time saving and energy saving.

Description of drawings:

Accompanying drawing 1 is structural representation of the present utility model;

The A-A sectional drawing of accompanying drawing 2 accompanying drawings 1;

The B of accompanying drawing 3 accompanying drawings 1 is to view.

Among the figure: the 1-polished rod; The 2-dust ring; The 3-dust cap; 4-bolt I; The 5-nylon jacket; The 6-push rod; The 7-Compress Spring; The 8-bearing; The 9-locking nut; 10-plain cushion I; The 11-spheroid; 12-seals I; 13-gland I; 14-plain cushion II; The 15-cone seal; 16-valve body I; 17-tuningout ball; The 18-sealing mat; 19-valve body II; 20-seals II; 21-flange adapter sleeve; 22-standard ball valve; 23-bolt II; The 24-positioning boss; 25-seals III; 26-gland II; The 27-valve rod; The 28-valve stem nut; The 29-valve handle; The 30-extension spring; The 31-spring base; The 32-automatic closing ball valve; 33-cone seal body; 34-wax removal ball valve.

The specific embodiment:

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

In conjunction with Fig. 2, shown in Figure 3, this automatic blowout-prevention tuningout blowout preventer comprises automatic closing ball valve 32, cone seal body 33 and wax removal ball valve 34 by Fig. 1.Valve body I 16 inner chambers are equipped with sealing I 12 successively, spheroid 11, and plain cushion I 10, locking nut 9 is equipped with valve rod 27 on the spheroid 11, and valve rod 27 is by sealing III 25, gland II 26, valve stem nut 28 sealings; Valve handle 29 is installed on the valve rod 27, the porose connection push rod 6 of the other end, push rod 6 connection bearings 8, between push rod 6 and the valve body I 16 Compress Spring 7 is installed, there is nylon jacket 5 to be separated by between push rod 6 and the valve body I 16, the bearing 8 on both sides is pressed on the polished rod 1 by Compress Spring 7, and valve handle 29 1 ends connect extension spring 30, and extension spring 30 other ends are connected on the spring base 31 on the valve body I 16; Valve body I 16 upper ends are connected by bolt I 4 with dust cap 3, between dust cap 3 and the polished rod 1 dust ring 2 are installed; Valve body I 16 has positioning boss 24 near valve handle 27 bottoms.

Valve body I 16 bottoms are threaded with tuningout ball 17, compress simultaneously the gland I 13 that is installed in tuningout ball 17 inside, plain cushion II 14, cone seal 15, valve body II 19 is by sealing II 20, flange adapter sleeve 21 connects tuningout ball 17, and flange adapter sleeve 21 is by bolt II 23, sealing mat 18 connection standard ball valves 22.

In actual the use, when needing to change polished rod 1 or cone seal 15, standard of closure ball valve 22 unclamps the screw thread of valve body I 16 and unloads, and opens gland I 13, and plain cushion II 14 is replaceable cone seal 15.When polished rod 1 accidental or when fracture, 2 bearings 8 drive push rods 6 and order about at Compress Spring 7 and move to the centre down, and push rod 6 breaks away from valve handle 29, and valve handle 29 turns to positioning boss 24 and stops under the effect of extension spring 30, and well head is closed.

The utlity model has following beneficial effect: this a kind of automatic blowout-prevention tuningout blowout preventer is owing to adopting such scheme, when polished rod accidental or fracture, can moment close well head, play the effect of unexpected blowout prevention, the effect of playing the sealing polished rod that the cone seal of installing in the tuningout ball is changed, the replacing packing efficiency is high, the standard ball valve arrangement is reliable, has avoided the spool obscission, does not exert an influence for the polished rod balance, in sum, this a kind of automatic blowout-prevention tuningout blowout preventer has wax removal spool difficult drop-off, does not destroy the polished rod balance, good seal performance, the replacing packing efficiency is high, can prevent the characteristics of unexpected blowout.

Claims

1. automatic blowout-prevention tuningout blowout preventer, comprise valve body I (16), automatic closing ball valve (32), cone seal body (33) and wax removal ball valve (34), it is characterized in that: valve body I (16) inner chamber is equipped with sealing I (12), spheroid (11), plain cushion I (10) and locking nut (9) successively, valve rod (27) is installed on the spheroid (11), and valve rod (27) is by sealing III (25), gland II (26) and valve stem nut (28) sealing; At valve rod (27) valve handle (29) is installed, the porose connection push rod of the other end (6), push rod (6) connection bearing (8), between push rod (6) and the valve body I (16) Compress Spring (7) is installed, there is nylon jacket (5) to be separated by between push rod (6) and the valve body I (16), the bearing on both sides (8) is pressed on the polished rod (1) by Compress Spring (7), valve handle (29) one ends connect extension spring (30), and extension spring (30) other end is connected on the spring base (31) on the valve body I (16); Valve body I (16) upper end is connected by bolt I (4) with dust cap (3), between dust cap (3) and the polished rod (1) dust ring (2) is installed; Valve body I (16) has positioning boss (24) near valve handle (27) bottom, valve body I (16) bottom is threaded with tuningout ball (17), compress simultaneously and be installed in the inner gland I (13) of tuningout ball (17), plain cushion II (14), cone seal (15), valve body II (19) is by sealing II (20), flange adapter sleeve (21) connects tuningout ball (17), and flange adapter sleeve (21) is by bolt II (23), sealing mat (18) connection standard ball valve (22).