Liquid distributor for falling film evaporator and falling film evaporator
A technology of falling film evaporator and liquid distributor, applied in evaporator accessories, evaporation, separation methods, etc., can solve problems affecting heat exchange efficiency, etc., and achieve the effect of easy cleaning and maintenance, simple structure, and not easy to block
Active Publication Date: 2019-06-18
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
However, the liquid distributor can only make the liquid flow into the evaporator tube along the horizontal direction, and in the process of flowing along the concave surface in the evaporator tube, some liquid will fall into the center of the evaporator tube in the form of droplets, which will affect the heat exchange efficiency
Method used
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[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0029] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefore sho...
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The invention discloses a liquid distributor for a falling-film evaporator, belonging to the technical field of evaporation equipment. The liquid distributor comprises a top cover, a honeycomb duct and a frustum-shaped pipe, wherein the top cover is provided with a central through hole; one end of the honeycomb duct is inserted into the central through hole and connected with the top cover; the other end of the honeycomb duct is connected with the smaller end of the frustum-shaped pipe; a base plate is located below the larger end of the frustum-shaped pipe; a circumferential gap is located between the base plate and the end surface of the larger end of the frustum-shaped pipe; and the base plate is connected with the frustum-shaped pipe via a support member. The invention also provides the falling-film evaporator. The liquid distributor provided by the invention is stationary in liquid flowing, uniform and stable in film distribution and high in heat exchange efficiency.
Description
technical field [0001] The invention relates to the technical field of evaporation equipment, in particular to a liquid distributor for a falling film evaporator and a falling film evaporator. Background technique [0002] The falling film evaporator is a kind of efficient evaporation equipment, which belongs to the category of thin film evaporators. Generally, thin film evaporators can be divided into three types: rising film evaporators, falling film evaporators and wiped film evaporators. The vertical falling film evaporator is a kind of falling film evaporator. The vertical falling film evaporator has the advantages of high heat transfer coefficient, short heating time of materials, no degradation of heat-sensitive materials, small pressure drop, small heat transfer temperature difference loss, energy saving, not easy to scale, and small stagnant liquid volume, etc. It is widely used in chemical industry, light industry, chemical fiber, food processing, medicine, seawa...
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IPC IPC(8): B01D1/22B01D1/30
Inventor 王晶晶赵利民方向晨吴长安
Owner CHINA PETROLEUM & CHEM CORP