CN2545358Y

CN2545358Y - Pressure release type wellhead theftproofing device

Info

Publication number: CN2545358Y
Application number: CN 02202714
Authority: CN
Inventors: 许自强
Original assignee: 刘龙江
Priority date: 2002-01-28
Filing date: 2002-01-28
Publication date: 2003-04-16
Anticipated expiration: 2012-01-28

Abstract

The utility model provides a depressurized wellhead alarm installed on the crude oil wellhead, including main assemblies such as a valve spool, a valve, the joint of a conical pipe wellhead and an outer shell etc. The structural design is characterized in that the outside of the valve is sleeved with the joint of the conical tube pipe wellhead which has a round joint. The valve is arranged in the conical pipe cavity, and the valve spool is mounted at the center of the valve fixedly connected with the shell. The utility model has the advantages over the prior device of a simple structure, a convenient usage and a good antitheft performance.

Description

A kind of pressure-releasing type well head alarm

The utility model is a kind of pressure-releasing type well head alarm that is contained on the crude oil well head, belongs to mechanical-moulded technical field.

Past, after well head is fuel-displaced, only well head is shut fasteningly, thisly shut the device that fastening means adopts with general tubular configured joint, its structure is all fairly simple, belong to general envelope and tightly install, do not have anti-theft measure, so, often there is a large amount of crude oil stolen, also cause the destruction of the tight device of envelope simultaneously, brought tremendous loss for the production in oil field, increased the expenditure of a large amount of unnecessary production management expenses simultaneously.

The purpose of this utility model designs at the problems referred to above just a kind of pressure-releasing type well head alarm with anti-theft feature is provided, this device is when shutting fastening crude oil well head, also increased anti-theft measure, make the crude oil can be not stolen easily, but also provide new safety guarantee means for opening well head production.

The purpose of this utility model realizes by following measure:

This kind pressure-releasing type well head alarm, it comprises primary clusterings such as spool, valve body, Taper Pipe well head joint and shell, its structural design features is, the Taper Pipe well head joint that has circular joint at the outside of valve body suit one, valve body is placed in the tube chamber of its taper, spool is installed in the center of valve body, and valve body and shell are fixed together.

The drawing of accompanying drawing is described as follows:

Fig. 1 is an overall structure schematic diagram of the present utility model

Below with reference to drawings and Examples the utility model is further described:

Shown in accompanying drawing 1, this kind pressure-releasing type well head alarm, it comprises spool 1, valve body 2 and shell 4, and these assemblies are identical with existing well head fastener, increases a Taper Pipe well head joint 3, its structural design features is, this has the Taper Pipe well head joint 3 of circular joint at the outside of valve body 2 suit, and behind the suit, valve body 2 just places in the tube chamber of its taper, spool 1 is installed in the center of valve body 2 equally, and valve body 2 is fixed together with shell 4.

During use, earlier Taper Pipe well head joint 3 is sleeved on the crude oil well head, valve body 2 is fastened on the well head again, afterwards, Taper Pipe well head joint 3 is sleeved on the valve body 2 bottom-uply, and tightens up, and like this, valve body 2 just places in the tube chamber of taper of Taper Pipe well head joint 3.Because valve body 2 is to place in the tube chamber of taper of Taper Pipe well head joint 3, its top is a shell 4, just makes steathily that the oil stealer can't set about, and like this, has just played antitheft effect.When needs are drained the oil, unclamp spool 1 earlier, oil is emitted by valve body 2, then, can unclamp Taper Pipe well head joint 3 again and get final product.

The utility model compare with existing apparatus have simple in structure, easy to use, anti-theft Advantage that can be good.

Claims

1. pressure-releasing type well head alarm, it comprises spool (1), valve body (2), Taper Pipe well head joint (3) and shell primary clusterings such as (4), it is characterized in that: the Taper Pipe well head joint (3) that has circular joint at the outside suit one of valve body (2), valve body (2) is placed in the tube chamber of its taper, spool (1) is installed in the center of valve body (2), and valve body (2) is fixed together with shell (4).