Hydrocyclone used for three-phase medium separation

Abstract

The invention discloses a hydrocyclone used for three-phase medium separation, mainly solving the problem that the existing hydrocyclone is larger in fluid energy loss at a bottom flow port. The hydrocyclone is characterized in that a curve flow-guiding body which is formed by connecting a straight line cone with a curve cone is fixed at the bottom end of a cyclone pipe; the ellipse line of the generatrix gradient of the curve cone is increased gradually; an overflowing body which is formed by connecting a second stage overflowing pipe with a first stage overflowing pipe is fixed after penetrating through an upper end cover of the cyclone pipe; the second stage overflowing pipe is arranged outside the first stage overflowing pipe; the second stage overflowing pipe and the first stage overflowing pipe are connected in a coaxial mode; a hohlraum is formed between the second stage overflowing pipe and the first stage overflowing pipe; the medium in the hohlraum is led out from a second stage overflowing port on the second stage overflowing pipe; and the length of a straight pipe of the first stage overflowing pipe is less than the length of a straight pipe of the second stage overflowing pipe. With the adoption of the hydrocyclone, both the energy loss of a fluid can be compensated, and the purity of outtake air or outtake liquid can be modified by adjusting the lengths of the first stage overflowing pipe and the second stage overflowing pipe, so that the separation efficiency of a three-phase medium is increased.

Description

technical field [0001] The invention relates to a cyclone separation treatment device for sewage treatment in the fields of petroleum, chemical industry and environmental protection. Background technique [0002] At present, in the fields of petroleum, chemical industry and environmental protection, the rapid separation methods for oil-water two-phase separation mainly include cyclone separation, air flotation, filtration and membrane separation. Among them, the air flotation method has a small range of adaptability to changes in oil concentration; although the filtration method can achieve the separation of oil and water phases, it requires frequent backwashing for high oily sewage to ensure long-term stable operation of the equipment; membrane separation The equipment cost of this method is relatively high, and the requirements for medium conditions are relatively strict. In comparison, the cyclone separation method is a relatively common method because the equipment used...

AI Technical Summary

Problems solved by technology

In order to improve the separation efficiency, Northeast Petroleum University applied for the No. 200920219724.X gas-liquid-solid three-phase separation hydrocyclone patent in 2007. After the application of this device, it was found that although it has the advantages of high separation efficiency and small equipment volume, it is also There are the following problems: According to the inner cone structure in this scheme, there will be a speed loss during the separation process, and the closer to the bottom flow port, the more serious the fluid energy loss, thus affecting the efficiency of the three-phase separation

Images