Solar energy absorption type super-cooling compression compound-refrigerating system and refrigerating method thereof

Abstract

The invention discloses a solar energy absorption type super-cooling compression compound-refrigerating system and a refrigerating method thereof. A solar thermal collector is connected with a thermal storage tank, a generator and a drive fluid pump in sequence; the generator is connected with a first condenser, a first throttle valve, a super-cooler, an absorber, a solution pump and a solution heat exchanger in sequence; a second condenser is connected with the super-cooler, a second throttle valve, an evaporator and a compressor in sequence; a first temperature sensor is located at the middle of the thermal storage tank; a second temperature sensor is located at the inlet end of the second throttle valve; a first controller is respectively connected with a drive fluid pump, a solution pump and a first temperature sensor to receive temperature signals and transmit control signals; a second controller is respectively connected with the drive fluid pump, a transducer and the second temperature sensor to receive temperature signals and transmit control signals. The solar energy absorption type super-cooling compression compound-refrigerating system and the refrigerating method thereof can regulate the drive fluid temperature and refrigerating amount of an absorption sub-system in an adaptive mode according to working condition change characteristics; the cold supply energy saving effect of the system is effectively improved under variable working conditions.

Description

technical field [0001] The invention relates to a refrigeration system, in particular to a solar absorption type supercooled compression composite refrigeration system and a refrigeration method thereof. Background technique [0002] The energy consumption of air conditioners has become the main factor for the shortage of power supply in summer in many big cities in my country. In recent years, air-conditioning energy consumption has continued to grow and has accounted for more than 50% of building energy consumption. In addition, the huge air-conditioning power consumption also seriously restricts the further improvement of my country's energy conservation and emission reduction. Therefore, reducing the energy consumption of air conditioners will effectively alleviate the contradiction of power supply and significantly promote the sustainable development of society and economy. Solar energy is a green and clean energy with an extremely large amount of resources. Its hourl...

AI Technical Summary

Problems solved by technology

When the solar radiation is significantly attenuated, the temperature of the driving fluid will drop rapidly and cause the absorption subsystem to consume too much driving energy, which will cause the absorption subsystem to shut down for a long time, resulting in a significant reduction in the energy saving effect of the system

In addition, when the real-time cooling load of the building drops sharply, the temperature of the subcooler (which also serves as the evaporator of the absorption subsystem) will decay synchronously, which can also induce long-term shutdown of the absorption subsystem, which in turn leads to attenuation of the energy-saving effect of the system

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