All-weather wide-range two-way flow regulating device and its regulating process

Abstract

The invention provides an all-weather wide-range two-way flow regulating device, including a compressor, the compressor is connected to a four-way reversing valve, and the four-way reversing valve is respectively connected to an environment-side heat exchanger, a use-side heat exchanger and a vapor-liquid separator , the other end of the environment side heat exchanger is respectively connected to the first throttling element, the check valve and the first solenoid valve, the check valve and the first solenoid valve are respectively connected to the second throttling element and the second solenoid valve, the first throttling element The flow element, the second throttling element and the second solenoid valve are respectively connected to the economizer and the third throttling element, the economizer is connected to the liquid reservoir, the third throttling element is connected to the compressor through the economizer, and the liquid accumulator is connected to the use side Heat exchanger, use the side heat exchanger to connect the gas-liquid separator, and the gas-liquid separator is connected to the compressor. The all-weather and wide-ranging two-way flow regulating device of the present invention integrates air source heat pump technology, air supply enthalpy increase technology and electronic expansion valve throttling technology to ensure the safe, reliable and efficient operation of low ambient temperature air source heat pumps under different ambient temperatures.

Description

technical field [0001] The invention relates to the technical field of low ambient temperature air source heat pumps, in particular to an all-weather wide-range two-way flow regulating device and its regulating process. Background technique [0002] With the country's increasing emphasis on environmental protection, the promotion of clean energy has been deeply rooted in the hearts of the people. Air source heat pumps, as a new type of environmentally friendly energy-saving technology, have been widely used in urban heating and domestic hot water. In areas with cold climates, air source heat pumps mostly adopt the technology of supplementing air to increase enthalpy, but due to the low evaporation temperature and high condensation temperature, the compression ratio of the system is too high, and the exhaust temperature is too high, which may cause mechanical damage to the compressor. The exhaust temperature of the compressor is too high and exceeds the protection temperature...

AI Technical Summary

Problems solved by technology

In areas with cold climates, air source heat pumps mostly adopt the technology of supplementing air to increase enthalpy, but due to the low evaporation temperature and high condensation temperature, the compression ratio of the system is too high, and the exhaust temperature is too high, which may cause mechanical damage to the compressor. The compressor exhaust temperature is too high and exceeds the protection temperature of the unit and cannot work normally, thus reducing the adaptability of the air source heat pump

Images