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A new high-efficiency static ice-making indirect ice-melting cooling air-conditioning system for households

A cold air conditioning and cooling system technology, applied in air conditioning systems, household heating, space heating and ventilation, etc., can solve the problems of destroying evaporators and cooling devices, complex system design, and high equipment requirements, and achieve reasonable resources. The effect of utilizing, eliminating and reducing energy waste

Inactive Publication Date: 2018-07-24
YUNNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The air-conditioning system using dynamic drift ice energy storage and direct cooling technology has high stability, good cooling effect, and excellent cooling efficiency, but the system design is complicated, the equipment requirements are high, and the investment cost is high. It is suitable for large-scale cooling projects, such as large shopping malls. , hospitals, schools, office buildings and other large central cooling buildings
The air-conditioning system using static ice storage and indirect cooling technology has the advantages of stable cooling, simple structure, and low cost. Mass freezing expansion destroys evaporator and cooling device

Method used

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  • A new high-efficiency static ice-making indirect ice-melting cooling air-conditioning system for households
  • A new high-efficiency static ice-making indirect ice-melting cooling air-conditioning system for households
  • A new high-efficiency static ice-making indirect ice-melting cooling air-conditioning system for households

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A new type of high-efficiency static ice-making indirect ice-melting cooling air-conditioning system for households invented consists of two cycles and two processes, namely: static ice-making cycle, indirect ice-melting cooling cycle, cooling and heating process and control process .

[0027] Cycle 1: Use grid-driven AC compressor 9 to compress the refrigerant, flow into oil-gas separator 8 for separation, then enter condenser 7 to dissipate heat and condense, then flow into plate heat exchanger 6 to continue cooling, and then enter liquid receiver 5 , through the electromagnetic valve 4, enters each evaporator branch, passes through the throttle valve 3, enters each static ice-making indirect ice-melting cooling system 2 in the ice storage tank 1, and passes through the refrigerant flow divider 25 at the ice-making end to refrigerate The working fluid is distributed to each parallel evaporator 28 in the ice-making system to absorb heat and refrigerate to make ice, and...

Embodiment 2

[0034] Replace the energy supply system in Example 1 with a solar photovoltaic power supply with a photovoltaic control system and battery energy storage, use DC to drive the compressor, and replace the AC compressor 9, AC water pump 16, AC vacuum pump 24 and AC in Example 1. The air-conditioning fans 21 are all replaced with DC-driven compressors, water pumps, vacuum pumps and air-conditioning fans, and other implementation processes are the same as in Embodiment 1.

Embodiment 3

[0036] Replace the energy supply system in Example 1 with solar photovoltaic power supply with photovoltaic control system and battery energy storage, use AC to drive AC compressor 9, AC water pump 16, AC vacuum pump 24 and AC air conditioner fan 21, only need to install inverter Transformer, the solar direct current is converted into suitable alternating current, and other implementation processes are the same as embodiment 1.

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Abstract

The invention discloses a novel household efficient static ice-making and indirect de-icing type cooling air conditioning system. The system is characterized in that a ice-making evaporator and an indirect de-icing cold exchange device of the traditional ice-making and indirect de-icing type cooling air conditioning system are integrated; the whole evaporator of the traditional ice-making system is divided into some small evaporators to be dispersed at different places in an ice storing tank so as to make ice; in addition, the structures of the small evaporators are optimized; the traditional coiled pipe mode is replaced by multi-way parallel-connection mode for dispersed refrigerating, and therefore, the flowing distance of a refrigerating medium in the evaporators can be reduced, the ice-making efficiency can be increased, and moreover, the frosting occurring in static ice-making process can be effectively solved, and the phenomenon of energy waste can be prevented; meanwhile, the same function of cooling as starting of the common household air conditioner is achieved; the condensing water of the air conditioner is collected for further cooling the refrigerating working medium, and the compressor technology is adopted, so that the refrigerating efficiency is increased, the ice-making quantity is increased, and the cooling quality is improved; meanwhile, the condensing water flowing through the compressor is converted into hot water to flow to a household heating system; therefore, the resource is reasonably utilized, the energy is utilized to the maximum, and the comprehensive energy utilization rate of cold-heat combined supply for household use is increased.

Description

technical field [0001] The invention relates to a novel high-efficiency static ice-making and ice-melting cooling air-conditioning system, which belongs to the design and manufacture field of refrigeration and air-conditioning systems, especially ice-storage and cooling-supply air-conditioning systems. Background technique [0002] Ice storage technology is of great significance in realizing energy saving and consumption reduction in buildings, "shifting peaks and filling valleys" of the power grid, and increasing the load rate of the power grid. Developed countries took the lead in introducing ice storage technology into building air-conditioning systems, and the technology has been popularized and applied on a large scale. my country began to study ice storage technology in the 1990s, and now it has made great progress, and has established a large number of ice storage cooling projects. [0003] The ice storage air-conditioning system uses the working principle that water...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F5/00F24F13/22
CPCF24F5/0017F24F13/22F24F2013/228Y02E60/14
Inventor 李明徐永锋罗熙王云峰余琼粉曹义泽苏坤烨张恒
Owner YUNNAN NORMAL UNIV