CN2282068Y

CN2282068Y - Multiple effect pressure tester

Info

Publication number: CN2282068Y
Application number: CN96224268U
Authority: CN
Inventors: 胡万明; 韩三五
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-23
Filing date: 1996-12-23
Publication date: 1998-05-20
Anticipated expiration: 2006-12-23

Abstract

The utility model relates to a pressure testing device for testing the sealing performance in the front of a well, which is used on the blowout preventer for drilling wells. The utility model comprises a base 1, an oil cylinder 2, arc clamps 3, a piston seat 4 and top cylinders 5, wherein, the oil cylinder 2 is arranged in the base 1, and the piston seat 4 and the arc clamps 3 are fixed above the base 1; the oil cylinder 2 is a two-way oil cylinder; pressure testing blind plates 6 with seals can be folded and are additionally arranged on the top cylinders 5 arranged in the two arc clamps 3. The utility model has the advantages of convenient installation and reasonable structure; due to the adoption of the two-way oil cylinder, the pressure testing device decreases volume, increases the stability and the rigidity of equipment and extends service life; as the folding pressure testing blind plates are additionally arranged in the utility model, the utility model is enabled to have multiple functions, low cost and economy.

Description

Multiple-effect can pressure testing device

The utility model relates to a kind of experimental rig of testing oil well head device sealing performance, particularly a kind of pressure testing device that is used for the preceding experiments of sealing performance of well on the well drilling blowout prevention device.

This class pressure testing jig that uses is the arc card that is had unidirectional oil cylinder by base and both sides, top thereof at present, the locating cone piece on the arc card, and the seal groove of the inner top of taking blame for others and take blame for others, piston seat is formed, and the pressure testing part is put into and is carried out pressure testing on the seal groove.This pressure testing device has the following disadvantages: 1. extremely inconvenience is installed, occurs unbalance stress after the installation; 2. in a single day seal groove damages, and can only change takes blame for others can re-use, and certainly will raise the cost; 3. a bench teat presses the seal groove of jig, the specification of sealing ring to fix, and can only satisfy a kind of preventer pressure testing of specification, has limitation; 4. two of arc card both sides unidirectional oil cylinders have increased floor space; 5. because base adopts steel pipe using the field Welding assembling, base is yielding, influences arc card kinetic stability.

The purpose of this utility model be to provide a kind of economical rationality, volume multiple-effect little, good stability can pressure testing device.

The utility model is achieved in that a kind of multiple-effect energy pressure testing device, it comprises base, oil cylinder, arc card, piston seat, takes blame for others, wherein oil cylinder is arranged on upper fixed has in the base of piston seat and arc card, this oil cylinder is a two-way cylinder, improved force-bearing situation like this, prolong application life, reduced volume; The removable PRESSURE TESTING BLIND FLANGE of the band seal groove of setting up is installed on the taking blame for others in two arc cards, owing to set up removable PRESSURE TESTING BLIND FLANGE, damaging the back changes conveniently, needn't change again and take blame for others, reduced cost, and PRESSURE TESTING BLIND FLANGE be removable, so that change the blind plate of all size, satisfy the pressure testing of plurality of specifications preventer, make it have the multiple-effect energy, seem more economical reasonable.

Above-mentioned base designs is a case structure, and base and arc card contact surface adopt fine finishining, and such force-bearing situation is more reasonable, and not yielding, has also improved stationarity, the accuracy of arc card motion simultaneously.

This pressure testing device is easy for installation, and is rational in infrastructure, owing to adopt two-way cylinder, reduced volume, increased the stability and the rigidity of equipment, prolonged application life, the removable PRESSURE TESTING BLIND FLANGE of setting up, make its practicable a tractor serves several purposes, reduced cost, seem more economically.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1. the structural representation of the utility model embodiment.

A kind of multiple-effect energy pressure testing device, it comprises base 1, oil cylinder 2, arc card 3, piston seat 4, takes blame for others 5, it is characterized in that: oil cylinder 2 is arranged on upper fixed to be had in the base 1 of piston seat 4 and arc card 3, and this oil cylinder 2 is a two-way cylinder; The removable PRESSURE TESTING BLIND FLANGE 6 of the band seal groove of setting up is installed in taking blame for others on 5 in two arc cards 3.

Above-mentioned base 1 is designed to case structure, and base 1 adopts fine finishining with arc card 3 contact surfaces, and such force-bearing situation is more reasonable, and not yielding, has also improved stationarity, the accuracy of arc card motion simultaneously.

Claims

1. a multiple-effect can pressure testing device, it comprises base (1), oil cylinder (2), arc card (3), piston seat (4), take blame for others (5), it is characterized in that: oil cylinder (2) is arranged on upper fixed to be had in the base (1) of piston seat (4) and arc card (3), and this oil cylinder (2) is a two-way cylinder; The removable PRESSURE TESTING BLIND FLANGE (6) of the band seal groove of setting up is installed on two arc cards (3) interior take blame for others (5).

2. multiple-effect energy pressure testing device as claimed in claim 1, it is characterized in that: described base (1) is a case structure.