A self-operated gas-liquid two-phase liquid level control valve

Abstract

The invention discloses a self-operated gas-liquid two-phase level control valve, which comprises gas-liquid barrel, valve bodies, a valve rod, valve cores, a float bowl, a gas valve seat and a liquid valve seat, wherein the float bowl is located in the gas-liquid barrel; the valve rod is fixedly arranged in the float bowl; the bottom end of the valve rod is fixed to the valve cores; the gas-liquid barrel is fixed to the valve seats; a gas-liquid mixing outlet is formed in the valve bodies; the gas valve seat and the liquid valve seat are respectively arranged at the upper parts and the lower parts in the valve bodies; the valve cores are respectively inserted into the gas valve seat and the liquid valve seat in a removable manner; a gas-liquid mixing chamber is communicated with the gas-liquid mixing outlet; the gas-liquid mixing chamber in the valve bodies is communicated with a gas chamber and a liquid chamber in the removable manner; the valve cores are respectively abutted against the gas chamber and the liquid chamber in a closed manner or respectively communicated with the gas chamber and the liquid chamber in an open manner; a gas area and a liquid area of a gas-liquid mixing tank of the gas-liquid barrel are hermetically communicated; the valve bodies are respectively and hermetically communicated with the gas-liquid mixing tank and are respectively connected with a metering device. The self-operated gas-liquid two-phase level control valve disclosed by the invention has the advantages that the structure is simple; the conflicts in the prior art are solved; gas-liquid two-phase separate metering is realized while level control is reliably realized.

Description

technical field [0001] The invention relates to a liquid level control valve, in particular to a self-operated gas-liquid two-phase liquid level control valve. Background technique [0002] At present, in the construction process of oil field surface engineering, gas-liquid separation is often used according to the site working conditions, and gas-liquid measurement is carried out through gas flowmeters and mass flowmeters respectively. After metering, the gas and liquid are mixed and enter the oil-gas mixed transportation system. The invention solves the problem of ensuring the liquid level height during the gas-liquid separation and mixing process, thereby ensuring the gas-liquid separation. [0003] In the traditional self-operated liquid level control mechanism, when the pressure bearing requirements are high, the wall of the float is thick, the float is too heavy, and the buoyancy is insufficient; the wall thickness is small, the buoyancy meets the requirements, but th...

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Problems solved by technology

[0003] In the traditional self-operated liquid level control mechanism, when the pressure bearing requirements are high, the wall of the float is thick, the float is too heavy, and the buoyancy is insufficient; the wall thickness is small, the buoyancy meets the requirements, but the pressure bearing capacity of the float is not enough.

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