A tube shell vertical anti-fouling falling film absorption device

Abstract

The invention discloses a tube shell vertical anti-scaling falling film absorbing device, which comprises a shell, a falling film tube, a liquid distribution plate, an elastic deflector, a spring and a liquid receiving plate. The cooling water outlet passes through the first water pipe and the falling film tube. The top of the falling film tube is connected to the top of the cooling water inlet through the second water pipe. There is a liquid distribution hole on the liquid distribution plate, the falling film tube passes through the liquid distribution hole, and the elastic deflector is fixedly connected to the liquid distribution hole. The lower end: the spring is sleeved on the outside of the falling film tube, the top of the spring is fixedly connected to the elastic deflector, the bottom of the spring is connected to the bottom surface of the liquid receiving plate through a steel wire, and a siphon is arranged in the liquid receiving plate. The tube shell vertical anti-scaling falling film absorption device, the absorption device uses the siphon principle, by setting the automatic reciprocating cleaning spring, so that the outer spring of the falling film tube automatically reciprocates, enhances the liquid film disturbance, uniforms the liquid film distribution, and has Automatic descaling function, thereby improving the gas absorption rate of the absorption device and prolonging the use time.

Description

technical field [0001] The invention belongs to the technical field of absorption refrigeration, and in particular relates to a tube shell vertical anti-scaling falling film absorption device. Background technique [0002] Falling film absorbers have important applications in absorption refrigeration, air conditioning and chemical industries. In a common shell-and-tube vertical falling film absorber, the absorption solution flows into the liquid distribution pan from the top, and then forms a liquid film through the liquid distribution holes in the liquid distribution pan, and moves along the falling film tube in the shape of the liquid film. Downflow while absorbing gas from the absorber body. Inside the tube is cooling water, which is used to cool the liquid film, so that the temperature of the liquid film decreases, and the corresponding saturation concentration increases, which increases the concentration difference between the current concentration and the saturation c...

AI Technical Summary

Problems solved by technology

[0005] In addition, during the flow process of the liquid film, due to the change of the physical properties of the outer wall of the falling film tube, the distribution of the liquid film is often uneven, and even the phenomenon of falling film trunk, channel flow or stream flow occurs, which will reduce the effectiveness of the liquid film. absorption area, resulting in a decrease in absorption rate

The impurities, flocs, and sediments adsorbed on the outer surface of the falling film tube for a long time will also affect the distribution of the liquid film, the absorption effect and the heat transfer effect with the cooling water.

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