Ultrasonic-strengthened generator for absorption refrigerator

Abstract

The invention discloses an ultrasonic-strengthened generator for an absorption refrigerator. A heater is arranged in a shell; the heater comprises a heat exchange water box and heat exchange tubes; columnar dead holes which extend inwards a box body are distributed on one end face of the box body of the heat exchange water box; condensation ends of the heat exchange tubes 7 are exposed outside the heat exchange water box, and evaporation ends of the heat exchange tubes 7 are arranged in the columnar dead holes; and a solar energy hot water inlet and a solar energy hot water outlet are arranged on the side wall of the heat exchange water box. In the ultrasonic-strengthened generator for the absorption refrigerator, the heat exchange tubes are used as heat exchange elements, and a lithium bromide solution is heated by a heating heat source through the heat exchange tubes, therefore, the heated uniformity of the lithium bromide solution is improved. Furthermore, a group of ultrasonic generators are arranged in the generator for the absorption refrigerator to provide an ultrasonic field for the lithium bromide solution; and the use efficiency of the low-quality heat source and the refrigeration efficiency of the refrigerator are improved by adopting the acoustic streaming effect and the cavitation effect of ultrasonic waves to strengthen a heat and mass transfer process of the lithium bromide solution. The ultrasonic-strengthened generator for the absorption refrigerator can be applied in absorption refrigerators which are driven by the low-quality heat source, such as solar energy, waste hot water, waste gas and the like.

Description

technical field [0001] The invention relates to an absorption refrigeration generator, in particular to an absorption refrigerator generator strengthened by ultrasonic waves. Background technique [0002] Using solar energy for refrigeration has a very broad market prospect. With the development of the economy and the improvement of people's living standards, the demand for air conditioners is increasing. In general civil buildings, such as hotels, office buildings, hospitals, etc., the energy consumption of air conditioners has accounted for more than 50% of the total energy consumption, which has caused great pressure on energy, electricity and the environment. With the substantial improvement of people's living standards, the focus of people's attention has shifted from the original air conditioner price to whether the air conditioner is energy-saving and environmentally friendly. The characteristics and technical characteristics of solar refrigeration and air condition...

AI Technical Summary

Problems solved by technology

However, due to the low density of solar radiation and its spatiotemporal inhomogeneity and the influence of the performance of the existing solar heat collection system itself, in most cases, solar energy alone cannot stably increase the hot water required by the absorption refrigeration system, and can only rely on The way of auxiliary heat source heating maintains the normal operation of the absorption refrigeration unit, which greatly reduces the utilization fraction of solar energy

So far, most solar absorption refrigeration systems work in the medium and high temperature range, and there are relatively few research results on high-efficiency solar cooling in the low temperature range, and the efficiency of solar cooling systems in the low temperature range is low, and there is no mature commercial application.

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