High temperature vapor compression cycle cold water heat pump unit heating and air conditioning system

Abstract

The invention discloses a heating and air-conditioning system for a high-temperature steam compressing and circulating cold water heat pump set and overcomes the defects of large occupied floor area, complicated structure, large steam and electricity consumption in the conventional system. The heating and air-conditioning system for the high-temperature steam compressing and circulating cold water heat pump set comprises the steam compressing and circulating cold water heat pump set (4), a water collector (8) and a water divider (15), wherein the steam inlet of the steam compressing and circulating cold water heat pump set (4) is communicated with a steam pipeline (1) through a steam regulating valve (3); a heating and air-conditioning water supply port on the steam compressing and circulating cold water heat pump set (4) is communicated with the water divider (15) through a heating and air-conditioning water supply pipeline (14); and the heating and air-conditioning water returning port of the steam compressing and circulating cold water heat pump set (4) is communicated with a water outlet (9) of the water collector (8) through a heating and air-conditioning water returning pipeline (13). By utilizing the afterheat of an auxiliary machine cooling tower in a fuel electric plant, the heating and air-conditioning system for the high-temperature steam compressing and circulatingcold water heat pump set realizes three functions integrally, namely, the functions of a winter heating station, a year-round domestic water heating station and a summer air-conditioning and refrigerating station.

Description

technical field [0001] The invention relates to a heating and air-conditioning system of a thermal power plant using the waste heat of an auxiliary cooling tower for a high-temperature vapor compression cycle cold water heat pump unit. As a drive, the waste heat from the auxiliary cooling tower is used to provide heating, air-conditioning hot water and domestic hot water in winter. In summer, steam is used to drive to generate chilled water for the air-conditioning system. Background technique [0002] At present, the winter heating system of thermal power plants in the north mainly uses 0.4-0.5MPa steam as the heating medium, and uses the shell-and-tube steam-water heat exchanger to heat the heated water from 60°C to 100°C for the heating system of the plant; domestic hot water system Mainly use 0.4-0.5MPa steam as the heating medium, and use the volumetric steam-water heat exchanger to heat the heated water from 10°C to 55°C for the domestic hot water system in the factor...

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Problems solved by technology

[0003] The invention provides a high-temperature vapor compression cycle cold water heat pump unit heating and air-conditioning system, which solves the defects of large floor area, complex structure, large steam consumption and power consumption of the existing system

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