CN201992110U

CN201992110U - Antitheft sampling valve

Info

Publication number: CN201992110U
Application number: CN2011200681832U
Authority: CN
Inventors: 孙军; 闫永洁; 宋希明; 王文刚; 赵汝燕; 王华兵; 孙海棠; 于丽俊
Original assignee: 孙军
Priority date: 2011-03-08
Filing date: 2011-03-08
Publication date: 2011-09-28
Anticipated expiration: 2021-03-08

Abstract

An antitheft sampling valve comprises a stop cap, a valve spool, an upper sealing ring, a liquid inlet pipe, a valve barrel, a lower sealing ring and a liquid discharge pipe. An inlet and an outlet are arranged on the valve barrel, the liquid inlet pipe is welded at the inlet of the valve barrel, the liquid outlet pipe is welded at the outlet of the valve barrel, the valve spool is mounted in the valve barrel, a through hole is disposed on the valve spool and can be communicated with the inlet and the outlet, the upper sealing ring and the lower sealing ring are mounted between the valve spool and the valve barrel, the upper sealing ring is positioned above the inlet, the outlet and the through hole, the lower sealing ring is positioned below the inlet, the outlet and the through hole, a polygonal slot is arranged at the upper end of the valve spool, the stop cap is connected with the upper portion of the valve barrel in a threaded manner, the upper end surface of the stop cap is an arc surface, and a positioning hole is disposed on the arc surface of the stop cap. After the stop cap is detached by the aid of a tool with a concave arc surface, the inlet and the outlet can be communicated with each other or can be closed by means of rotating the valve spool again by a tool, and sampling is realized. The upper end surface of the stop cap is the arc surface, the stop cap can only be detached by the special tool, crude oil cannot be easily stolen by thieves, the crude oil of an oil field can be prevented from being stolen, and economical loss of the oil field is reduced.

Description

Anti-theft sampling valve

Technical field

The utility model is a kind of equipment of oil well mouth usefulness, is a kind of anti-theft sampling valve.

Background technique

In oil well production, need sampling place on the ground well head of oil well or the conveyance conduit, be used to take oil sample, so that the various compositions in the chemical examination oil well produced liquid.Sampling place is generally by a common valve control.At the scene, thief is easy to open valve from sampling and steals crude oil, causes substantial oil stolen, causes serious economy loss to the oil field.

Summary of the invention

The purpose of this utility model is a kind of anti-theft sampling valve of design, makes thief can not open the valve stolen easily, avoids crude oil stolen, reduces the oilfield economic loss.

The purpose of this utility model is achieved in that and comprises the retaining cap, spool, last seal ring, liquid inlet pipe, valve cylinder, lower seal, drain pipe, have import on the valve cylinder, outlet, inlet's welding liquid inlet pipe at liquid inlet pipe, at the outlet port of liquid inlet pipe welding drain pipe, spool is installed in the valve cylinder, through hole is arranged on the spool, through hole can with import, outlet UNICOM, install seal ring between spool and the valve cylinder, lower seal, last seal ring is in import, outlet, on the through hole, lower seal is in import, outlet, under the through hole, there is the polygonal slotted eye spool upper end, the retaining cap is threaded with valve cylinder top, and retaining cap upper-end surface is the arc face, on the arc face of retaining cap positioning hole is arranged.

The beneficial effects of the utility model are: after taking the retaining cap apart with spill arc face instrument, just can make import, outlet UNICOM or close with the instrument rotary spool again, realize sampling, retaining cap upper-end surface is the arc face, need special tool to remove, thief is not easy to steal crude oil, can avoid crude oil stolen, reduces the oilfield economic loss.

Description of drawings

Fig. 1 is the utility model embodiment's a erection drawing.

Embodiment

Below in conjunction with Fig. 1 the utility model embodiment is described.

As seen from the figure, embodiment of the present utility model is by retaining cap 1, spool 2, last seal ring 3, liquid inlet pipe 4, valve cylinder 5, lower seal 6, drain pipe 7 is formed, have import 10 on the valve cylinder 5, outlet 12, at import 10 places of liquid inlet pipe 4 welding liquid inlet pipe 4, at outlet 12 places of liquid inlet pipe 4 welding drain pipe 7, spool 2 is installed in the valve cylinder 5, through hole 11 is arranged on the spool 2, through hole 11 can with import 10, export 12 UNICOMs, install seal ring 3 between spool 2 and the valve cylinder 5, lower seal 6, prevent liquid leakage, last seal ring 3 is in into 10, outlet 12, on the through hole 11, prevent that liquid from upwards leaking, lower seal 6 is in import 10, outlet 12, under the through hole 11, prevent that liquid from leaking downwards, there is polygonal slotted eye 9 spool 2 upper ends, are used to install the spanner of rotary spool 2, retaining cap 1 is threaded with valve cylinder 5 tops, retaining cap 1 upper-end surface is the arc face, on the arc face of retaining cap 1 positioning hole 8 is arranged, and is used for the instrument of installing and locating dismounting retaining cap 1.

Claims

1. anti-theft sampling valve, comprise retaining cap (1), spool (2), last seal ring (3), liquid inlet pipe (4), valve cylinder (5), lower seal (6), drain pipe (7), it is characterized in that: have import (10) on the valve cylinder (5), outlet (12), import (10) in liquid inlet pipe (4) locates to weld liquid inlet pipe (4), outlet (12) in liquid inlet pipe (4) locates to weld drain pipe (7), spool (2) is installed in the valve cylinder (5), through hole (11) is arranged on the spool (2), through hole (11) can with import (10), outlet (12) UNICOM, install seal ring (3) between spool (2) and the valve cylinder (5), lower seal (6), last seal ring (3) is in import (10), outlet (12), on the through hole (11), lower seal (6) is in import (10), outlet (12), under the through hole (11), there is polygonal slotted eye (9) spool (2) upper end, retaining cap (1) is threaded with valve cylinder (5) top, retaining cap (1) upper-end surface is the arc face, on the arc face of retaining cap (1) positioning hole (8) is arranged.