Heat source tower heat pump air-conditioning system capable of using cool storage device to assist heating

Abstract

The invention discloses a heat source tower heat pump air-conditioning system capable of using a cool storage device to assist heating. Please see the figure one to three in the specification for the system schematic diagram. The heat source tower heat pump air-conditioning system capable of using cool storage device to assist heating mainly comprises a refrigeration or heating device (1), a heat source tower (2), a cool storage tank (3), a heat source tower water pump (4), a circulating pump (5), an anti-freezing solution pump (6), a heat exchanger (7), a tail end device (8) and a user side water pump (9), wherein the cool storage tank (3) is filled with phase-change materials with the phase-transition temperature ranging from minus 6DEG C to 7DEG C, switching and adjustment are carried out through valves. In summer, valley electricity is used for cool storage at night, and independent cooling of the cool storage tank, independent cooling of a main machine and united cooling of the cool storage tank and the main machine can be achieved in the daytime; in winter, a cool storage device is used in cooperation, the valley electricity is used for heat storage at night, independent heating of the cool storage tank, independent heating of a heat source tower heat pump and united heating of the cool storage tank and the heat source tower heat pump can be achieved in the daytime. According to the heat source tower heat pump air-conditioning system capable of using cool storage device to assist heating, the problem that a cool storage device of a traditional cool storage air conditioner is idle in winter is solved, the problem that high energy consumption is caused by the low COP of a unit in winter is solved, and the capacity of peak load shaving of the cool storage device is improved.

Description

technical field [0001] The invention relates to a cold storage device combined with a heat source tower heat pump refrigeration and heating technology, especially using the cold storage device to assist heating in winter. Background technique [0002] With the continuous development of modern cities, the social power demand load has increased sharply, and the contradiction between the insufficient power supply capacity during the daytime peak power consumption and the low load efficiency of power plants during the nighttime trough period has become increasingly prominent. How to alleviate this contradiction has become an important problem that needs to be solved urgently. [0003] Cold storage air conditioners use electric refrigerators to cool at night when the power load is very low, use phase change latent heat to store the cooling capacity, and release cooling during the peak power consumption period during the day to meet all or part of the cooling capacity requirements ...

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Problems solved by technology

[0006] Aiming at the deficiencies of existing cold storage air conditioners and heat source tower heat pump technologies, the invention applies the cold storage device to the auxiliary heating process in winter, avoiding the problem of traditional cold storage air conditioners being "idle" in winter, and solving the problem of when the outdoor temperature is too low in winter, The heat exchange capacity of the heat source tower heat pump system decreases, and the high energy consumption problem caused by the low COP of the unit

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