Water steam energy heat pump equipment and machine unit system thereof

Abstract

The invention relates to water steam energy heat pump equipment and a machine unit system thereof, in particular to a water steam energy heat pump machine unit. The machine unit comprises a dual-parallel compressor consisting of a variable-frequency compressor and a constant-frequency compressor, a combined dry type evaporator, a combined sectioned condenser, a gas supplementation enthalpy increasing device, an oil gas separator, a siphon tank, a cooling oil cooling device, an expansion throttle device, a refrigerating agent inlet angle valve and a refrigerating agent outlet angle valve; majorcomponents form a low-temperature heat source host; all of the components are combined to form the best combination to prevent liquid impact and to realize the efficient operation; the refrigeratingliquid is used for cooling refrigerating oil; the refrigerating oil can be better controlled in the proper temperature range; a better effect of lubricating the compression machine is reached, so thatthe adaptation to the efficient heat generation at the ultra-low temperature environment can be realized; the equipment is applied to heating in northern high latitude areas, can replace the existingboiler for heating, and belongs to very clean energy-saving environmental-friendly equipment.

Description

technical field [0001] The invention belongs to refrigeration and heating units, in particular to water vapor energy heat pump equipment and its unit system. Background technique [0002] Air pollution is becoming more and more serious, greenhouse gas emissions are increasing, the negative effects of greenhouses are becoming more and more prominent, glaciers are melting, and sea level rise has attracted the attention of all mankind. It is an inevitable trend to replace traditional boiler heating with advanced energy-saving and clean energy technologies. The data shows that in 2015 China's total building energy consumption was 857 million tons of standard coal, accounting for 20% of the country's total energy consumption, of which: the energy consumption of public buildings accounted for 341 million tons of standard coal; the energy consumption of urban residential buildings was 3.2 100 million tons of standard coal; the energy consumption of rural buildings is 197 million to...

AI Technical Summary

Problems solved by technology

[0003] At present, it is difficult for the main engine of the air energy heat pump to adapt to the requirements of efficient operation of the ambient temperature below zero, and its technical obstacles are mainly reflected in:

[0004] (1) A large amount of frost accumulation will weaken the heat transfer performance of the evaporator;

[0005] (2) Frosting hinders the gas flow between the outdoor coils, and the energy loss of the fan increases

[0007] (3) The way of defrosting affects the user experience

[0008] (4) Defrost consumes a lot of energy and takes a long time to defrost

[0009] (5) The central air-conditioning heat pump unit cannot use reverse operation to defrost

[0010] (6) If antifreeze is used as the heat-absorbing medium, the temperature of the freezing point will rise, which will cause the copper tube of the evaporator to freeze and expand from time to time.

[0011] (7) Concentrated antifreeze device consumes too much energy

[0012] (8) The operation of the main engine in a low temperature environment makes it difficult to return oil to the refrigeration oil

[0013] (9) If the temperature of the evaporator is too low, it is inevitable that there will be no liquid shock, which will greatly shorten the life of the compressor

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