Evaporative Cooling Device Combining Microchannel and Membrane Technology
An evaporative cooling and micro-channel technology, applied in evaporator/condenser, refrigerator, refrigeration components, etc., can solve the problem of weakening heat transfer effect and achieve the effect of improving refrigeration effect
Active Publication Date: 2019-05-24
UNIV OF SHANGHAI FOR SCI & TECH
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Since the phase transition occurs under the membrane, additional thermal resistance is created, impairing heat transfer
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[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] The membrane-based evaporative cooling device proposed in the present invention utilizes microchannels to realize evaporative cooling in nanoporous thin films, as shown in Figure 1.
[0023] like figure 2 As shown, the micro-channel auxiliary film dew point evaporative cooling device of the present invention, the main body of the device is a closed cuboid closed box, the closed box is connected to the circulating water pump 4 and the water pipe 3; The main body of the device is divided into upper and lower spaces by a heat insulating plate 9, the upper space is the dry space 1, the lower space is the wet space 2, a layer of nanoporous water-absorbing film 8 is placed above the heat insulating plate 9, and the film is vertically arranged at equal intervals. The upper side of the microchannel 10 is communicated with the condenser tube.
[0024] Th...
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The invention relates to a micro-channel and film technology combined evaporative cooling device. The outer portion of a closed box is connected with a circulation water pump and a water conveying pipe. A condensation pipe and a condenser are arranged. The interior of the closed box is divided by a heat isolation plate into an upper dry space and a lower wet space. A layer of nano porous water absorbing film is placed above the heat isolation plate, vertical micro-channels are arranged on the film at equal intervals, and the upper sides of the vertical micro-channels communicate with the condensation pipe. Direct and indirect evaporative cooling is conducted on two strands of air in the wet space and the dry space through the pressure of micro-channel capillary tubes and the water absorbing property of the nano porous film, the two strands of air can reach the wet bulb temperature and the dew point temperature correspondingly, and accordingly the environment air requirements of different occasions are met. The indirect evaporative cooling technology principle is utilized, the dry and wet space is used for replacing a dry and wet channel in traditional dew point cooling, the micro-channel technology is combined, the contact area is increased, and accordingly the indirect evaporative cooling effect of secondary air can be improved; and according to the purpose, the film technology is used in the micro-channels, and the refrigerating effect of the dew point evaporative cooling technology is better improved.
Description
technical field [0001] The invention belongs to the technical field of air conditioning, and mainly relates to an evaporative cooling device with a micro-pass to auxiliary film dew point. Background technique [0002] Today, the construction of green buildings has become one of the important ways for the transformation and development of the construction industry. The rational use of natural cold sources and the low-grade heat energy of air have become two breakthroughs in the transformation of energy conservation and rational utilization of energy in the field of air conditioning. Therefore, evaporative cooling, a new type of refrigeration technology that is energy-saving, environmentally friendly and sustainable, has received extensive attention from the industry at home and abroad. It uses water as the refrigerant and uses the evaporation and heat absorption of water as a natural cooling source to replace the operation of the refrigeration unit of the traditional air-cond...
Claims
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IPC IPC(8): F24F5/00F25B39/02
CPCF24F5/0035F25B39/02
Inventor 吕静傅伊珺贺培裕
Owner UNIV OF SHANGHAI FOR SCI & TECH