CN201963261U - Pneumatic type oil scraper for oil pipe - Google Patents

Abstract

The utility model provides a pneumatic type oil scraper for an oil pipe, which belongs to the technical field of machinery manufacture and comprises a shell body and a rubber barrel, wherein the shell body comprises an upper flange disc, a lower flange disc and a pipe body; the pipe body is fixed between the upper flange disc and the lower flange disc; the rubber barrel is arranged in the pipe body; an air bag is arranged in the barrel wall of the rubber barrel; an outwards air nozzle communicated with the air bag is arranged on the barrel wall of the rubber barrel; a side hole corresponding to the position of the air nozzle is arranged on the wall of the pipe body; and the air nozzle penetrates through the side hole. In operation, the oil scraper is arranged at the position of a wellhead, the top end of the oil pipe penetrates through a barrel cavity of the rubber barrel from the bottom up, air is filled in the air bag of the rubber barrel through the air nozzle, the rubber barrel is expanded inwards to firmly brake the oil pipe, the oil pipe is lifted upwards at a constant speed, and the oil on the outer wall of the oil pipe is scraped cleanly through the rubber barrel. The pneumatic type oil scraper has the functions of scraping the oil, and controlling the overflow in an annular space of an oil sleeve.

Description

Pneumatic type oil pipe oil wiper

Technical field:

The utility model belongs to machinery manufacturing technology field, is a kind of device that cleans oil well oil-pumping tubing.

Background technology:

Petroleum well oil pipe beam hanger after having adopted gate gurgle valve has been realized wax removal in the well, but the greasy dirt of oil pipe external surface is unclean by nature trickling stream, and mentioning handling on the ground has pollution to environment.

Summary of the invention:

The technical problems to be solved in the utility model is to disclose a kind of pneumatic type oil pipe oil wiper, thus in the process that oil pipe is mentioned the greasy dirt scraping of oil pipe external surface.

The scheme of the utility model technical solution problem is to adopt housing and packing element to constitute pneumatic type oil pipe oil wiper, its middle shell is made of upper flange plate, lower flange and body, body is fixed between upper flange plate and the lower flange, packing element is in body, in the barrel of packing element air bag is arranged, the outside valve that is communicated with air bag is arranged on the barrel of packing element, the side opening corresponding with the valve position arranged on the tube body wall, valve passes side opening.During operation oil wiper is installed in the well head place, the tube chamber of packing element is passed on the top of oil pipe from bottom to up, inflates in the air bag of packing element by valve, and oil pipe is tightly embraced in the inside expansion of packing element, and oil pipe is at the uniform velocity upwards promoted, and packing element is with the oily scraping of oil-pipe external wall.

The utility model is simple in structure, operation, easy to use, and the function of existing frizing also has the function of control oil casing annular space overflow, is a good environmental protection instrument.

Description of drawings:

Accompanying drawing is the utility model sectional view.

The specific embodiment:

The utility model is made of housing 1 and packing element 2, its middle shell 1 is made of upper flange plate 3, lower flange 4 and body 5, body 5 is fixed between upper flange plate 3 and the lower flange 4, packing element 2 has air bag 6 in the barrel of packing element 2 in body 5, the outside valve 7 that is communicated with air bag 6 is arranged on the barrel of packing element 2, the side opening 8 corresponding with valve 7 positions arranged on body 5 walls, valve 7 passes side opening 8, and air bag 6 is contour with body 5, and the external diameter of air bag 6 is identical with the bore of body 5.

Claims (1)

1. pneumatic type oil pipe oil wiper, it is characterized in that: it is made of housing and packing element, its middle shell is made of upper flange plate, lower flange and body, body is fixed between upper flange plate and the lower flange, packing element has air bag in the barrel of packing element in body, the outside valve that is communicated with air bag is arranged on the barrel of packing element, the side opening corresponding with the valve position arranged on the tube body wall, and valve passes side opening.