A plate type combination of demister with variable gas flow rate
A technology of gas flow rate and demister, which is applied in the direction of chemical instruments and methods, separation of dispersed particles, separation methods, etc., can solve the problem of low efficiency of demister for droplet removal and the reduction of secondary entrained droplet removal efficiency , can not meet the environmental protection requirements of mist discharge, etc., and achieve the effect of small flow resistance, saving flushing water and high flushing efficiency
Active Publication Date: 2017-02-22
XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD
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Problems solved by technology
For this type of plate-type demister, the higher the flue gas flow rate, the greater the inertia of the droplets, and the higher the removal efficiency of the droplets. The droplet removal efficiency is reduced instead, so the removal efficiency of small-size droplets with small inertia is poor, and the content of small-size droplets carried in the gas is so large that the overall removal efficiency of the demister for droplets is not high. , can not meet the environmental protection requirements of droplet discharge
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[0019] The present invention is described in further detail below in conjunction with accompanying drawing:
[0020] refer to figure 1 , the demister plate type combination of variable gas flow rate according to the present invention The demister plate type combination of variable gas flow rate is composed of several demister plates, and each demister plate is distributed in parallel and at equal intervals, and each demister plate is sequentially It is composed of acceleration section 1, deceleration section 2, turning section 3 and outlet section 4. The acceleration section 1 of two adjacent demister plates forms an acceleration channel, and the deceleration section 2 of two adjacent demister plates forms a A deceleration channel, the turning section 3 of two adjacent demister plates forms a turning channel, the outlet section 4 of two adjacent demister plates forms an outlet channel, and the The acceleration channel, the deceleration channel, the steering channel and the ou...
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The invention discloses a demister plate type combination with variable gas flow rate, which is composed of several demister plates, each demister plate is distributed in parallel and at equal intervals, and each demister plate is sequentially composed of an acceleration section, a deceleration section, and a turning section The acceleration section of two adjacent demister plates forms an acceleration channel, the deceleration section of two adjacent demister plates forms a deceleration channel, and the turning section of two adjacent demister plates forms A turning channel is formed, and the outlet sections of two adjacent demister plates form an outlet channel, and the acceleration channel, deceleration channel, turning channel and outlet channel formed by the adjacent two demister plates are connected in turn, along the airflow In the flow direction, the cross-sectional area of the accelerating duct gradually decreases, and the cross-sectional area of the decelerating channel gradually increases. The invention has small flow resistance to airflow and high removal efficiency for liquid droplets of all particle sizes.
Description
technical field [0001] The invention relates to a plate type combination of a mist eliminator, in particular to a plate type combination of a mist eliminator with variable gas flow velocity. Background technique [0002] In the field of flue gas desulfurization of coal-fired power stations, more than 90% of them currently use the limestone-gypsum wet flue gas desulfurization process. Although this process is mature and widely used, the liquid droplets carried in the clean flue gas during the application process are 20 The gypsum slurry with a concentration of about % contains certain solid particles, which will form dust pollution when discharged into the atmosphere. The upper part of the absorption tower or the outlet flue is equipped with a mist eliminator, which is used to remove the residual liquid droplets and particles in the outlet gas of the absorption tower. [0003] At present, the plate form of the mainstream mist eliminator in the market is baffle type. The gas ...
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IPC IPC(8): B01D45/04B01D45/08
CPCB01D45/04B01D45/08
Inventor 何仰朋陶明石振晶郭浩然何育东
Owner XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD