CN2479336Y

CN2479336Y - Pipeline pressure connector shell

Info

Publication number: CN2479336Y
Application number: CN 01216573
Authority: CN
Inventors: 钊洪智; 李长年
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-26
Filing date: 2001-02-26
Publication date: 2002-02-27
Anticipated expiration: 2011-02-26

Abstract

The utility model provides a connector housing with pressure in tube, comprising a main tube body 1, a process pipe 3 and a leak-off pipe 6. The utility mode l is characterized in that a surface relative to a lower end tube wall of the main tube body 1 is equipped with a symmetrical arc groove. The utility model has the advantages that the overall structure is simple, the manufacturing cost is low, the usage is convenient and the sealing is reliable after the welded structure is employed.

Description

The pipe pressurized connector housing

The utility model metal conduit accessory class, a kind of more precisely being used on the pipeline with pressure to realize the device in band pressure connecting branch road.

Pipeline with pressure---for example coal gas is carried main pipe, when needs are drawn branch pipe(tube), normally utilizes valve to cut off the source of the gas of job step, subsequently with the gas emptying of depositing (mostly be and burn) in the operation section main pipe, leads then, the arm connection.Not only waste of manpower financial resources of this method, certain risk being arranged, more mainly is to make troubles to user's normal life and work.

The applicant has once designed a kind of pipe pressurized connector (patent No. is 99219890.9) for addressing the above problem, it is characterized in that: have one by the main pipe interface, the three-way pipe sandwich type element that bypass tube and process duct are formed, be provided with the opening cutter of seal arrangement in the process duct therein, and cutter hub positioning device, during use, the main pipe interface is fixed on main pipe fixed position really, then bypass tube is connected with the branch pipe(tube) that deploys, after arm connects, rig is fixed on the process duct, and cooperates the cutting opening of implementing main pipe with process duct inner opening cutter.After cutting finishes, mention the opening cutter and it is fixed on the process duct, with a blind pressing plate secondary seal is carried out in the process duct upper end after laying down rig.

The deficiency of this structure is: when main pipe was selected steel pipe for use, the structural type of main pipe interface was then saved aspect materials inadequately.

The purpose of this utility model is to press connector shell to design to band in the prior art, further to reduce cost.

Pipe pressurized connector housing provided by the utility model is made up of main pipe, process duct and bypass tube, it is characterized in that: the arc groove that symmetry is arranged on an opposing side of main pipe lower end tube wall.

For the ease of the reliable welding of main pipe and pipeline with pressure, the utility model leaves groove on the outer tube wall at arc groove place.

The connection of process duct of the present utility model and rig guarantees that admittedly and further rig takes off the seal of back process duct, is provided with a flange plate on process duct for convenience.In the upper end surface of flange plate the ring packing line is set, to guarantee obturation effect.

Equally, in order to guarantee the reliable welding of bypass tube and branch pipe(tube), the utility model is provided with groove in the end of bypass tube.

Introduce embodiment of the present utility model below in conjunction with Figure of description:

Figure of description 1 is a structural representation of the present utility model;

1-main pipe in the drawings, 2-flange plate, 3-process duct, 4-screw hole, 5-ring packing line, 6-bypass tube, 7-groove, 8-arc groove, 9-groove.

As shown in the figure, the utility model main body is to select for use the seamless thick walled steel tube of Q235 to be welded, and comprises main pipe 1, process duct 2 and bypass tube 6.Wherein, main pipe 1 lower end mouth is on the relative both sides tube wall of one and bores arc groove 8, and processes groove 9 in the tube wall outside at arc groove 8 places.In construction, utilize arc groove 8 the utility model seat to be placed on the body of pipeline with pressure (arc groove 8 matches with the tube wall of pipeline with pressure) and utilize groove 9 that the utility model is welded on band securely to press on the main pipe.

Process duct 3 is used for holding and supporting cutter hub.The flange plate 2 of welding is to be used for fixing rig on process duct 3, and rig cooperates with cutter head in the process duct 3 to be realized being with the cutting of pressure main pipe body.After rig removes, flange plate 2 will cooperate the secondary seal of realizing process duct 3 ends with a blind differential, and at least one ring packing line 5 of flange plate 2 upper end surfaces will help sealing effect.Screw hole 4 on the process duct 3 cooperates with positioning screwn, is fixed on the top of process duct 3 with finishing the cutter head of mentioning after the cutting task, guarantees that the siphunculus that main pipe 1 and bypass tube 6 form is unimpeded.

Bypass tube 6 is welded on the main pipe 1, and its shaft axis is perpendicular to the shaft axis of arc groove 8.End at bypass tube 6 leaves the groove 7 that welds usefulness with the branch road body.

The utility model has the advantages that: simple in structure, low cost of manufacture is used reliable.

Claims

1, a kind of pipe pressurized connector housing is made up of main pipe (1), process duct (3) and bypass tube (6), it is characterized in that: the arc groove (8) that symmetry is arranged on the opposing side of main pipe (1) lower end tube wall.

2, pipe pressurized connector housing according to claim 1 is characterized in that: groove (9) is arranged on the outer tube wall that arc groove (8) is located.

3, pipe pressurized connector housing according to claim 1 and 2 is characterized in that: a flange plate (2) is arranged on the process duct (3).

4, pipe pressurized connector housing according to claim 3 is characterized in that: be provided with ring packing line (5) in the upper end surface of flange plate (2).

5, pipe pressurized connector housing according to claim 1 is characterized in that: in the end of bypass tube (6) groove (7) is arranged.