Volute-type gas-liquid separation device

Abstract

The invention relates to a volute-type gas-liquid separation device which comprises a volute shell, wherein a spiral channel is arranged in the volute shell, a liquid inlet is formed at the outer side of the spiral channel, a gas chamber is arranged above the spiral channel, a reflux port is formed at the bottom of the volute shell, and an exhaust port is formed at the top of the volute shell; gas and liquid enter from the liquid inlet and spirally flow in the spiral channel, bubbles are sufficiently released, upwards move into the gas chamber and are discharged from the exhaust port, and a muddy water mixed solution is refluxed to the bottom of a reactor through the reflux port. The volute-type gas-liquid separation device disclosed by the invention is simple in structure. According to the volute-type gas-liquid separation device, the gas and liquid which are subjected to gas stripping spirally flow in the spiral channel, the gas is sufficiently released, and the muddy water mixed solution is sufficiently mixed, so that the problem of gasp during the movement of the gas and liquid is solved; the gas-liquid separation is more convenient and simpler, so that the gas-liquid separation effect is enhanced, and the service life is prolonged.

Description

technical field [0001] The invention relates to a device for separating the gas phase (air, biogas) and liquid phase (sewage) in the mixed liquid in the gas stripping process when the sewage is treated by an anaerobic reactor, which belongs to the gas phase in the sewage treatment process. Liquid separation technology field. Background technique [0002] Anaerobic reactors and aerobic reactors are both efficient biofilm wastewater treatment methods, and gas-solid-liquid three-phase separators are required inside them to separate the gas, sludge particles and mud-water mixture produced during the reaction (digested gas, digested liquid and sludge particles), and then the gas-liquid is lifted to the gas-liquid separator through the gas lift tube to realize gas-liquid separation, the mud-water mixture flows back into the reactor, and the gas is discharged (aerobic reactor ) or return to the reactor to participate in the reaction (anaerobic reactor). [0003] Chinese patent do...

AI Technical Summary

Problems solved by technology

[0005] Although the above-mentioned reactor has the characteristics of quick start-up of flocculent sludge and rapid generation of aerobic granular sludge during operation, it needs to be equipped with multiple three-phase separators and gas-liquid separation tanks, which has a complex structure and high cost

The bubbles in the gas-liquid will cause the gas-liquid operation to produce "gasp" (gas-liquid intermittent flow) phenomenon, because the gas-liquid lifted by the stripping tube enters from the middle of the gas-liquid separation tank, in the gas-liquid separation tank this If this kind of "wheezing" phenomenon cannot be eliminated, it will cause impact on the inner wall of the gas-water separation tank, the gas-liquid separation effect and efficiency will be poor, and it will also affect the service life of the gas-water separation tank

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