Combined nozzle for oil pipe

Abstract

The oil pipe combined nozzle comprises a main body, the main body is composed of a cylindrical part and a cone part located at the bottom of the cylindrical part, a thread part is arranged in the middle of an inner cavity of the cone part, external threads are arranged on the outer surface of the cylindrical part, and the external threads are in threaded connection with a fastening mechanism and a fixing mechanism located at the bottom of the fastening mechanism. A partition mechanism is arranged at the top of the fastening mechanism, and a flow adjusting mechanism is arranged at the top of the cylindrical part. The flow adjusting mechanism is driven by the fastening mechanism, so that the volume of the movable plate in the cylindrical part can be changed, the spraying speed is further changed, the mode is simple to operate, and equipment does not need to be disassembled and assembled; the nozzle opening can be partitioned through the first semicircular piece and the second semicircular piece, and then foreign matter is prevented from entering the oil pipe through the nozzle.

Description

technical field [0001] The invention relates to a nozzle, in particular to an oil pipe combined nozzle. Background technique [0002] Patent 1: According to the Chinese Utility Model Patent (Application No.: CN201520312765.9), a "coiled tubing special nozzle" includes a body, the outer shape of which is a conical structure, and the narrow diameter of the conical structure One end of the body is provided with an integrated annular step surface, the inside of the body is hollow, and the end of the body near the step surface is provided with a columnar hole structure, and the depth of the columnar hole is greater than the height of the annular step surface, An arc transition hole is provided at the end of the body away from the annular step surface, the arc transition hole is an annular arc structure, and the arc transition hole is smoothly transitioned to the columnar hole. The special nozzle for coiled tubing has a conical shape and is assembled in the conical hole in the no...

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Problems solved by technology

[0003] However, when the above-mentioned patent is actually implemented, because the main body is a simple integrated structure, it does not have a flow rate adjustment structure. Therefore, when the spray flow rate needs to be changed, it is necessary to replace the nozzles with different calibers, and because the nozzles are installed in the nozzle sleeve. , so it is very troublesome to replace; and when the oil pipe is not working, the nozzle does not have the function of isolation, and foreign matter may enter the oil pipe through the nozzle

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