[Asia
Pump Network News] Due to the continuous vacuum technology innovation and development, water ring pump applications are also increasing. Compared with other types of mechanical vacuum pumps, because of its water ring pump gas compression is isothermal, it has the function of pumping out flammable, explosive gases, in addition, it also has a removable dust, water-containing Gas, specifically for the following: The advantages and disadvantages of water ring pump> Simple structure, low manufacturing precision, easy processing; 2, compact structure, high pump speed, generally with the motor directly connected, without deceleration. So with a small structure size, you can get a large displacement, covers an area is also small; 3, the compressed gas is basically isothermal, that is, small changes in the temperature of the compressed gas process; 4, due to the pump cavity metal friction surface , No need to lubricate the pump, and wear small. The seal between the rotating parts and the fixing parts can be directly completed by the water seal; 5, uniform suction, stable and reliable work, simple operation and convenient maintenance. Of course, there are some shortcomings of the water ring pump: 1, low efficiency, generally about 30%, better up to 50%; 2, the vacuum is low, not only because of the structural constraints, more importantly by the working fluid Saturated vapor pressure limit. Water for the working fluid, the ultimate pressure can only reach 2000 ~ 4000Pa. Oil for the working fluid, up to 130Pa. In short, although water ring pumps are inefficient, they generally present outstanding advantages and are therefore still favored by the market and are widely used. Industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: Zeng Fenfen (QQ / WeChat:) http://beng.liuti.cn/ (Service Hotline:)
Drilling BOP And Control System
During oil drilling, it is installed on the wellhead casing head to control high-pressure oil, gas, and water blowout devices. When the oil and gas pressure in the well is high, the blowout preventer can close the wellhead (shut down). When the heavy mud is pressed into the drill pipe, there is a four-way under the ram, which can replace the mud invaded by gas, increase the pressure of the liquid column in the well, and suppress the ejection of high-pressure oil and gas.
Its types are divided into ordinary blowout preventer, universal blowout preventer and rotary blowout preventer. The universal blowout preventer can be activated in emergency situations to deal with any size of drilling tools and empty wells; the rotary blowout preventer can realize the blowout and drilling operation. In deep well drilling, in addition to two ordinary blowout preventers, universal blowout preventers and rotary blowout preventers are often added, so that three or four combinations are installed at the wellhead.
Annular Blow-out Preventer Annular Blow-out Preventer is usually equipped with a large gate with a ram-type blowout preventer. During operation, a sealed annular space is formed between the pipe string and the wellbore. When there is a pipe string in the well, it can also be separated The well is closed, but it will not work after several times of use, and long-term shut-in use is not allowed.
Drilling BOP And Control System,Double ram blowout preventer, single ram blowout preventer, annular blowout preventer, blowout preventer control system
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