Refrigerant mechanical circulation type ice storage cold-hot pump air-conditioning unit

Abstract

The invention discloses a refrigerant mechanical circulation ice-storage heat-pump air-conditioning unit which comprises an outdoor unit and an indoor unit. The invention belongs to the technical field of cold storage type heat pump air conditioning. A cold storage device is additionally provided with a working substance pump and a circulation reservoir. When in a cold relief operation, the working substance pump is utilized to raise the pressure on the liquid freezing medium after condensed and liquefied by an ice barrel and the liquid freezing medium after condensed and liquefied is transmitted into each indoor heat exchanger of the indoor unit through a freezing medium pipeline to supply cold to form freezing medium mechanical circulation old supply. After the ice barrel melts completely, the freezing medium is supercooled by the lower temperature water of the ice barrel so as to improve the unit performance. The invention effectively enlarges the transfer rate for peak electrical load of the air conditioner system, increasing the effective cold storage amount of the ice barrel, enlarging the function selection of the unit to lead the unit to be more flexible and improving the operation economy and reliability of the system. The invention is suitable for the application occasions for supplying cold and hot by taking a wind cooling( or air heating ) heat exchanger as a hanging or a packaged air conditioner unit of the heat exchanger of the indoor machine in the areas with a power peak-valley price difference.

Description

a technical field [0001] The invention relates to a refrigerant mechanical circulation type ice storage heat pump air conditioner unit, which belongs to the technical field of cold storage heat pump air conditioners. It is especially suitable for applications where there is a difference in electricity peak and valley prices, and where the air-cooled (or heated air) heat exchanger is used as the wall-mounted or cabinet-type air-conditioning unit of the indoor unit for cooling and heating applications. Two background technology [0002] With the continuous improvement of social development and people's living standards, urban power consumption has increased significantly, especially the peak power load has grown too fast, resulting in frequent power shortages during peak hours, but surplus power in low valleys. Therefore, the "peak shifting and valley filling" of the power grid is an urgent problem to be solved. As an air-conditioning system for the protection of the living e...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a refrigerant mechanical circulation type ice storage heat pump air conditioner unit to solve the problem of refrigerant supercooling and internal melting and ice release in the prior art. Large and poor system operation economy and reliability, in order to improve the economy and reliability of ice storage air-conditioning unit operation and increase the peak power load transfer of air-conditioning

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