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

A mechanical cycle, heat pump air conditioning technology, applied in refrigerators, compressors with reversible cycles, air conditioning systems, etc., can solve the problems of poor economy and reliability, large peak power load demand, etc., to improve operating performance and expand functions. Select, improve reliability and economic effects

Inactive Publication Date: 2008-06-18
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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

Examples

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Embodiment 1

[0014] Example 1: Combining figure 1, in the refrigerant mechanical circulation type ice storage heat pump air conditioner unit of the present invention, the outlet of the gas-liquid separator 15 is connected with the suction port of the compressor 1, and the exhaust port of the compressor 1 is connected with the intake port of the four-way reversing valve 2. The air return port of the four-way reversing valve 2 is connected to the air inlet of the gas-liquid separator 15, and the other two ports of the four-way reversing valve 2 are respectively connected to the inlet of the outdoor heat exchanger 3 and the fourth solenoid valve. 13. The gaseous refrigerant pipeline connected to the third solenoid valve 14 is connected; the outlet of the outdoor heat exchanger 3 is connected to the one-way valve 4 for cooling, the electronic expansion valve 22 for heating, the one-way valve 21 for heating, the first The inlet of the one-way valve / expansion valve / solenoid valve assembly compos...

Embodiment 2

[0024] Example 2: Combining figure 2 , in the refrigerant mechanical circulation type ice storage heat pump air conditioner unit of the present invention, the outlet of the gas-liquid separator 15 is connected to the suction port of the compressor 1, and the exhaust port of the compressor 1 is connected to the inlet port of the four-way reversing valve 2. The air port is connected, the air return port of the four-way reversing valve 2 is connected with the air inlet of the gas-liquid separator 15, and the other two interfaces of the four-way reversing valve 2 are connected with the entrance of the outdoor heat exchanger 3 and with the fourth solenoid valve respectively. Valve 13 and the gaseous refrigerant pipeline connected to the third solenoid valve 14 are connected; the outlet of the outdoor heat exchanger 3 is connected to the one-way valve 4 for cooling, the electronic expansion valve 22 for heating, the one-way valve 21 for heating, the second A solenoid valve 7, the i...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00F25B13/00
CPCY02E60/147Y02E60/14
Inventor 余延顺赵永军牛艳青
Owner NANJING UNIV OF SCI & TECH
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