Heat pump device capable of achieving climbing film evaporating mode and falling film evaporating mode
A heat pump device, falling film technology, applied in evaporation, evaporator accessories, chemical instruments and methods, etc., to achieve the effects of high versatility and integration, convenient and flexible operation, and simple structure
Active Publication Date: 2014-07-02
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Problems solved by technology
[0006] The purpose of the present invention is to provide a heat pump device that realizes two evaporation modes of rising film and falling film, so as to overcome the defect that the existing heat pump evaporator can only realize one evaporation mode
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[0023] 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.
[0024] 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 relationships 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 sh...
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The invention relates to the technical field of solution condensation, and specially relates to a heat pump device capable of achieving a climbing film evaporating mode and a falling film evaporating mode. The heat pump device comprises a solution pump, a four-way valve, and a heater; the input end of the solution pump is connected to the feeding pipe of the solution pump, the output end of the solution pump is connected to the first connector of the four-way valve; the second connector of the four-way valve is connected to the bottom of the heater; the third connector of the four-way valve is connected to a discharging pipe, the fourth connector is connected to the top of the heater through a falling film feeding pipe and is also connected to the upper part of the lateral wall of the heater through a climbing film discharging pipe; the top of the heater is connected to a climbing film steam pipe, and the lower part of the lateral wall of the heater is connected to a falling film steam pipe. The heat pump device is capable of achieving a climbing film evaporating mode and a falling film evaporating mode only through carrying out switching operation on the four-way valve, has a simple structure, and has the advantages of convenient and flexible operation, high versatility and integration level, environment-friendliness, high efficiency, and low cost.
Description
technical field [0001] The invention relates to the technical field of solution concentration, in particular to a heat pump device capable of realizing two evaporation modes of rising film and falling film. Background technique [0002] A traditional heat pump evaporator system can only achieve one operation mode, either falling film evaporation or rising film evaporation. When the falling film evaporation process is adopted, the heating process of the solution is that the temperature gradually increases from top to bottom, and the liquid film gradually becomes thinner. Dry burning may occur under the heating tube, but the process takes less time. It is suitable for rapid heating and in the heater. Substances with a short residence time. [0003] When the rising film evaporation process is used, the heating process of the solution is just opposite to the falling film evaporation process, and the temperature gradually increases from bottom to top. Because the drag force gene...
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IPC IPC(8): B01D1/22B01D1/30
Inventor 庞卫科杨鲁伟张振涛林文野戴群特
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI