Separation defoaming device and separator defoaming system

Abstract

The invention provides a separation defoaming device and a separator defoaming system. The separation defoaming device comprises a plurality of upper defoaming pieces and lower defoaming pieces whichare arranged in an up-down staggered manner, two sides of an opening of each upper defoaming piece extend into openings of two adjacent lower defoaming pieces, and two side edges of each upper defoaming piece are saw-toothed. Mixed liquid is accumulated in the lower defoaming piece to form a liquid seal, and steam pushes the surface of the liquid seal to quickly pass through saw-tooth gaps when passing through the liquid seal, so that fine liquid drops are filtered, and foam is broken. Meanwhile, the upper defoaming pieces and the lower defoaming pieces are arranged in a staggered mode, the contact area between the defoaming units and steam is large, the blockage rate of the steam and the mixed liquid when the steam and the mixed liquid pass through the defoaming units is reduced, and therefore it is guaranteed that fine steam foams are filtered, and meanwhile the situation that the device and the system are blocked can be avoided. Besides, in the separator defoaming system, agents such as a defoaming agent and a dispersing agent can be added into a circulating tank or fresh water can be supplemented into the circulating tank to replace part of discharged easily-foamed solution, sothat the possibility of foaming is reduced fundamentally.

Description

technical field [0001] The invention relates to the technical field of defoaming equipment, in particular to a separation and defoaming device and a separator defoaming system. Background technique [0002] The secondary steam generated during the evaporation process of gas-liquid separation sometimes entrains a large number of liquid droplets and foam. It is difficult to completely separate the entrained liquid droplets and foam only through the separator. If the liquid droplets and foam in the steam are not completely separated, it will cause Problems such as product loss, contaminated condensate and line blockages. Therefore, it is extremely necessary to install a defoaming device on the upper part of the separation chamber to separate the secondary steam and its entrained droplets and foam again. [0003] The most common types of demisters are wire mesh demisters and baffle plate demisters. The principle of the wire mesh demister is that when the gas with mist rises th...

AI Technical Summary

Problems solved by technology

The principle of the wire mesh demister is that when the gas with mist rises through the wire mesh at a certain speed, due to the inertia of the mist rising, the mist collides with the wire mesh filaments and is attached to the surface of the filaments. Its advantage is that the filtering effect is good, and small-sized droplets can be removed, but the screen is easy to clog, and it needs to be cleaned regularly or installed with a spray device for spraying or frequent replacement

The working principle of the baffle demister is that when the gas containing mist flows through the demister at a certain speed, due to the inertial impact of the gas, the mist collides with the corrugated plate and is attached to the surface of the corrugated plate. The advantage is that the pressure drop is small and it is not easy to clog, but it can only filter relatively large droplets or vapor foam, and the filtering effect is poor and has no purification effect on the gas.

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