Petroleum pump valve with valve rod nut capable of being rapidly disassembled and assembled

Abstract

The invention relates to the technical field of petroleum transportation, in particular to a petroleum pump valve with a valve rod nut capable of being rapidly disassembled and assembled. The petroleum pump valve with the valve rod nut capable of being rapidly disassembled and assembled comprises a valve body, a valve deck is connected to the valve body through an installation flange, a valve rod is installed on the valve deck and penetrates through the valve deck, the lower end of the valve rod extends into the valve body, the bottom of the valve rod is connected with a valve clack used for opening or closing the valve, and the top of the valve rod is connected with a hand wheel through a hand wheel nut; and the petroleum pump valve further comprises a valve rod nut rapid dismounting and mounting assembly, the valve rod nut rapid dismounting and mounting assembly is installed on the valve deck and connected with the valve rod. According to the petroleum pump valve with the valve rod nut capable of being rapidly disassembled and assembled, the valve rod extrudes a silica gel lantern ring, so that lubricating oil is extruded out and adheres and lubricates the valve rod, the situation that the valve rod is not smooth or stuck in the rotating process can be effectively prevented, and then use is facilitated.

Description

technical field [0001] The invention relates to the technical field of petroleum transportation, in particular to a petroleum pump valve whose valve stem nut can be quickly disassembled. Background technique [0002] Petroleum refers to a mixture of gaseous, liquid and solid hydrocarbons in natural occurrence. Petroleum is divided into crude oil, natural gas, natural gas liquid and natural tar, etc., but it is customary to use "oil" as the definition of "crude oil". Petroleum is a viscous, dark brown liquid known as the "blood of industry". Petroleum is mainly used as fuel oil and gasoline, and is also a raw material for many chemical industry products, such as solutions, fertilizers, pesticides and plastics. [0003] At present, in the process of transporting oil, it is usually necessary to use the oil pump valve to transport or stop the oil, and the opening or closing of the oil pump valve is controlled by the handwheel to rotate the valve stem on the stem nut, and the v...

AI Technical Summary

Problems solved by technology

[0003] At present, in the process of transporting oil, it is usually necessary to use the oil pump valve to transport or stop the oil, and the opening or closing of the oil pump valve is controlled by the handwheel to rotate the valve stem on the stem nut, and the valve The valve disc at the bottom of the stem is opened or closed to achieve the effect of starting or stopping oil transportation, but when the existing stem nut is screwed with the valve stem, due to long-term use, the stem nut and the valve There will be phenomena such as unsmooth rotation and jamming between the rods, which makes it inconvenient to use

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