CN2440601Y

CN2440601Y - Cleaning ball for oil or gas pipeline

Info

Publication number: CN2440601Y
Application number: CN 00244647
Authority: CN
Inventors: 赵志明
Original assignee: CHUANZHI RUBBER AND PLASTIC PLANT CHENGHUA DISTRICT CHENGDU CITY
Current assignee: Chengdu Machinery General Factory, Sichuan Petroleum Administration
Priority date: 2000-10-12
Filing date: 2000-10-12
Publication date: 2001-08-01
Anticipated expiration: 2010-10-12

Abstract

The utility model relates to a cleaning device for cleaning the inner walls of the pipelines of petroleum, natural gas and coal gas, especially suitable for cleaning the pipelines which has the characteristics of multiple curves, small curvature and irregular inner walls. A pipe cleaning ball comprises a ball nozzle and a ball body, wherein, the ball nozzle is composed of a bulkhead, a nozzle head, a nozzle body, an upper and a lower nozzle disks, and a nozzle head body. The ball body forms an integral structure, and the embedding and sealing reliability with the ball body is structurally enhanced by the structure of the ball nozzle in order to cause the ball nozzle of the ball body not easy to shed. Compared with the pipe cleaning balls of the prior art, the utility model has the advantages of safety and 50% service life extension.

Description

A kind of oil and gas pipes spherical pig

The utility model relates to a kind of oil, natural gas, gas piping inner wall cleaning tool using, is particularly useful for that bend is many, curvature is little, the irregular pipeline cleaning of inwall, belongs to oil and gas pipes transferring cleaning electrician testing tool technology field.

At oil, natural gas, in the pipeline conveying or newly-built pipeline of coal gas, unimpeded for guaranteeing inner-walls of duct cleaning and pipeline, need with spherical pig as cleaning tool, because the conveyance conduit major part is laid on underground, and distance is longer, therefore require the spherical pig good reliability, long service life, in the prior art, spherical pig generally all is the hollow ball that inner bag is arranged, because spheroid inner bag and spheroid bonding force are relatively poor, therefore easily leak, break, cause the service life of spheroid short, the mouthpiece body of spherical pig is an overall structure in addition, a boss is only arranged in the middle of it, the mouth body does not have metallic framework and is attached thereto, and is entrenched between inner bag and the spheroid by the rubber thin discs, and bond strength is not high, therefore, when injecting liquid, the ball mouth easily comes off when being subjected to the external force extruding, causes the leak of liquid in the ball thus and causes spherical pig forfeiture clearing function.

The novel purpose of this use designs a kind of structure that can improve ball mouth sealing reliability effectively for avoiding above-mentioned deficiency, makes its ball mouth difficult drop-off, and spheroid adopts integral structure, so its life-span is than the raising of existing spherical pig life-span more than 50%.

The purpose of this utility model is achieved in that the utility model comprises spheroid and ball mouth, the hollow ball that its spheroid is integrated, the ball mouth is made of plug, mouth, mouthpiece body, upper and lower mouth dish and mouth body, the mouthpiece body is made hollow cylinder, assemble more convenient, on the external circle of mouthpiece with upper and lower two the mouth dishes that are threaded, when sulfiding with spheroid, the formation twice are inlayed, strengthened the reliability of ball mouth and spheroid combination, the bottom of mouth body is the bulb shape, and top is disc, and sulfides with lower mouth disc.

The utility model compared with prior art has following advantage: because this spheroid adopts integral structure, therefore has the advantage that intensity height, wearability are good, can not influence service life because of interior gallbladder break, because the improvement of ball mouth structure is firm more, reliable with combining of spheroid.

Fig. 1 is a spherical pig longitudinal section of the present utility model.

Fig. 2 is the amplification view of the utility model ball mouth.

Below in conjunction with accompanying drawing the utility model is done further detailed description: metalwork of the present utility model adopts machining process to obtain, and rubber parts adopts the mould vulcanization forming; The utility model comprises spheroid and ball mouth, the hollow ball that spheroid 1 is integrated, the ball mouth is made of plug 2, mouth 3, mouthpiece body 5, last mouth dish 4, lower mouth disc 6 and mouth body 7, mouthpiece body 5 is the cylinder of band through hole, its cylindrical have upper and lower two by the mouth dish that is threaded, lower mouth disc 6 is embedded in the top of mouth body 7, the top of mouth body 7 is disc, the bottom is the cylinder of end dribbling head, middle through hole for the band groove, the external diameter of mouth 3 is greater than the internal diameter of mouthpiece body 5, and there is an annular boss lower end, is stuck in the groove of bulb body 7; The plug 2 and the mouth dish of ball mouth are made from high grade steel, mouthpiece body 5 usefulness stainless steels are made, all the other are rubber parts, earlier mouth 3 lower ends are pressed into mouth body 7 endoporus that are connected as a single entity with mouth dish 6, mouth 3 tops are inserted in mouthpiece body 5 endoporus and are screwed in the lower mouth disc 6 and smash the appropriate location then, last mouth dish 4 precession mouthpiece bodies 5 cylindricals, the assembling of ball mouth is after surface treatment, coated with adhesive is gone into the mould sulfuration with spheroid 1 again, when the cleaning pipeline, select the external diameter of ball according to internal diameter of the pipeline, ball plug 2 is unloaded, and with the fluid injection hollow needle that punctures, 3 a guiding endoporus of reading smoothly pierce through mouth 3 downwards, adopt pressure in ball, to inject liquid or gas, spheroid 1 is risen greatly to dimensional requirement, extract the fluid injection pin and screw plug 2, this moment mouth 3 preloading power and effect of ball cavity pressure produces the sealing of first road down, screw mouth 3 formation second road sealing and add upper plug head 2, guaranteed that the sealing of spherical pig is solid and reliable.

Field experiment is the result show: when adopting spherical pig of the present utility model cleaning pipeline, safe and reliable, its service life, the spherical pig than prior art improved more than 50%.

Claims

1, a kind of oil and gas pipes spherical pig comprises spheroid and ball mouth, it is characterized in that: the hollow ball that described spheroid is integrated, described ball mouth is made of plug, mouth, mouthpiece body, upper and lower mouth dish and mouth body.

2, a kind of oil and gas pipes spherical pig according to claim 1 is characterized in that: described mouthpiece body for the band through hole Cylinder, its cylindrical have upper and lower two by the mouth dish that is threaded, lower mouth disc is embedded in the top of mouth body.

3, a kind of oil and gas pipes spherical pig according to claim 1 is characterized in that: described mouth body top is disc, and the bottom is the cylinder of end dribbling head, middle through hole for the band groove.

4, a kind of oil and gas pipes spherical pig according to claim 1, it is characterized in that: the external diameter of described mouth is greater than the internal diameter of mouthpiece body, and there is an annular boss lower end, is stuck in the groove of bulb body.