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A kind of inner screw joint chrome alloy three-leaf connecting bar horizontal one-way valve

A technology of three-leaf connecting ribs and internal screw joints, which is applied in the direction of control valves, valve devices, and functional valve types, can solve problems such as increased energy consumption, tower flushing accidents, and large resistance, and achieve the effect of avoiding accidental failures

Inactive Publication Date: 2017-03-15
PUJIANG COUNTY XUANRAN AUTOMOBILE SUPPLIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, the cost of each maintenance of the oilfield system is staggering, and crude oil contains various corrosive mixtures. During the production process of oilfields, the production fluid of oil wells generally contains water and other corrosive media. The water in crude oil, along with Crude oil vaporizes during heating, which increases the gas phase load of the pipeline, causing fluctuations in the operation of atmospheric and vacuum devices, and in severe cases, tower flushing accidents
MgC12 and CaC12 in crude oil can be hydrolyzed to produce corrosive HCl, and HCl dissolves in water to form hydrochloric acid, which has a strong corrosive effect and causes corrosion of the pipeline system
After the crude oil is produced from the oil well, it is transported outward through the oil pipeline. Any repair or replacement of the oil circuit and the cleaning of the blocked pipeline will cost a lot, and will affect the production of the oil well for a long time.
[0003] One-way valves are indispensable in oilfield system pipelines to complete the entire delivery process. Currently used one-way valves, such as: steel ball type, valve type and gravity type, have the main disadvantages: the internal The spring causes a large resistance loss
The self-priming pump and other supporting one-way valves also have to overcome the gravity resistance in the whole process, resulting in additional energy consumption

Method used

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  • A kind of inner screw joint chrome alloy three-leaf connecting bar horizontal one-way valve
  • A kind of inner screw joint chrome alloy three-leaf connecting bar horizontal one-way valve
  • A kind of inner screw joint chrome alloy three-leaf connecting bar horizontal one-way valve

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the present invention will be further described with embodiment:

[0030] figure 1 , figure 2 , image 3 , Figure 4 , Figure 5and Figure 6 Among them, a chromium alloy three-lobed horizontal check valve with internal screw joints, including a cylindrical shaft 10, a swing valve core 20, an internal screwed valve body 30, a fastening screw 70 and an outer end cover 90, as an improvement: the The outlet elbow 31 and the inlet elbow 32 outer ends on the inner screw joint valve body 30 have inner screw joints 35, and the outer ends of the inner screw joints 35 have connecting internal threads 37 and bottom conical sealing surfaces 34; The inner end of the outlet elbow 31 is connected to the valve body outlet plane hard layer 39 of the inner screwed valve body 30, and the inner end of the inlet elbow 32 is connected to the valve body of the inner screwed valve body 30. Inlet plane hard layer 38; the upper edge of the ...

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Abstract

The invention relates to a valve special for matching of pipelines special for transporting crude oil of an oil field, and aims at providing an internal screw joint chromium alloy three-vane connecting bar horizontal one-way valve, wherein the exterior of a valve body is connected with an external inlet pipeline and an external outlet pipeline through internal screw joints, and the internal screw joint chromium alloy three-vane connecting bar horizontal one-way valve comprises a cylindrical shaft, a swing rotating valve element, an internal screw joint valve body, fastening bolts and an outer end cover. As an improvement, the outer end of an outlet elbow and the outer end of an inlet elbow of the internal screw joint valve body are each provided with an internal screw joint, and the outer end of each internal screw joint is provided with an internal thread for connection and a bottom end conical sealing surface; an annular runner opening is formed in the side of a valve element inlet lining plate of a valve element fan-shaped cylinder body, and a circular runner opening is formed in the side of a valve element outlet lining plate of the valve element fan-shaped cylinder body; the annular runner opening is communicated with the circular runner opening through a deformation runner, a variable runner conical part contained by the distortional runner is connected with the valve element fan-shaped cylinder body through a three-vane connecting bar, and the thickness of each single vane of the three-vane connecting bar is one thirteenth to one fifteenth of the diameter of the circular runner opening.

Description

technical field [0001] The invention relates to a matching special valve in a pipeline specially used for transporting crude oil in an oil field, in particular to a horizontal one-way valve with a chromium alloy three-leaf rib with an internal screw joint without any hindering parts such as springs. Background technique [0002] As we all know, the cost of each maintenance of the oilfield system is staggering, and crude oil contains various corrosive mixtures. During the production process of oilfields, the production fluid of oil wells generally contains water and other corrosive media. The water in crude oil, along with Crude oil vaporizes during the heating process, which increases the gas phase load of the pipeline, causing operation fluctuations of the atmospheric and vacuum devices, and in severe cases, tower flushing accidents. MgCl2 and CaCl2 in crude oil can be hydrolyzed to produce corrosive HCl, and HCl dissolves in water to form hydrochloric acid, which has a str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/03
CPCF16K15/03
Inventor 张志雄
Owner PUJIANG COUNTY XUANRAN AUTOMOBILE SUPPLIES CO LTD
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