Orifice-plate type adjustable throttle valve and manufacturing method thereof
A manufacturing method and adjustable technology, applied in the petrochemical field, can solve problems such as short service life, high noise of throttle valve, poor safety, etc., and achieve the effect of improving service life, increasing escape volume, and reducing operating costs
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[0051] The present invention is based on Figure 5 Oil (gas) wellhead orifice plate choke valve is used as the best embodiment to illustrate the specific implementation method:
[0052] A. Preparation:
[0053] Firstly, according to the design requirements, determine the shape and size of the throttle valve components that match the parameters such as pressure, temperature, flow, and ambient operating temperature. Considering the high temperature, high pressure, high corrosion, and high frequency use environment of oil (gas) wells, generally High-strength and corrosion-resistant chrome-molybdenum steel forgings are used as the main material of the throttle valve; cemented carbide steel is used as the base material for vulnerable parts.
[0054] Prefab conditioning:
[0055] Since chromium molybdenum steel forgings are processed by red forging, a large amount of forging stress is accumulated inside the material. If it is not eliminated, it will seriously affect the ...
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