Energy storage and temperature change type air conditioning method with underground reservoir and water source heat pump, and the dedicated device thereof

Abstract

The present invention discloses a variable temperature air-conditioning method using underground reservoir and water-source heat pump with energy-storage and its specialized equipment, which includes a geothermal heat exchanging cycling loop and an air-conditioning heat exchanging cycling loop, wherein the air-conditioning heat exchanging cycling loop includes a variable temperature air-conditioning heat exchanging cycling loop. In the geothermal heat exchanging cycling loop, the water-source heat pump exchanges energy with energy-storage tanks, and in the air-conditioning heat exchanging cycling loop, the energy-storage tanks exchanges energy with an air-conditioning load loop.

Description

BACKGROUND OF THE PRESENT INVENTION[0001]1. Field of Invention[0002]The present invention relates to a water-source heat pump, and more particularly to a variable temperature air-conditioning method using underground reservoir and water-source heat pump with energy-storage and its specialized equipment.[0003]2. Description of Related Arts[0004]Water-source heat pump is an effective energy-saving heating and cooling air-conditioning system for buildings by using low-ground heat including underground or surface water. The application of water-source heat pump technology has to be limited because of the following problems during the utilization of the underground and surface water. Well-drilling and underground recharge is high cost. The surface water is substantially subject to the environment temperature. Heat exchange affects the ecological environment.[0005]A buried-tube type of water-source heat pump system is to bury tubes for exchanging heat from rock and soil to a thermal stora...

AI Technical Summary

Benefits of technology

[0008]A main object of the present invention is to provide a variable temperature air-conditioning method using underground reservoir and water-source heat pump with energy-storage, which can lower the investment and operating cost, increase the air-conditioning system efficiency and reliability, and realize a constant and even temperature output without intervals.

Problems solved by technology

The application of water-source heat pump technology has to be limited because of the following problems during the utilization of the underground and surface water.

Well-drilling and underground recharge is high cost.

The shallow-buried tubes will be greatly influenced by the surface temperature and solar radiation, so that the system has low stability.

The deep-buried vertical tubes adopt high pressure polyethylene plastic U-shaped tube, so that the costs on related materials and ground-hole drilling are high.

Besides, the buried-tube type of water-source heat pump system demands high quality heat exchanger and geological structure, has low energy level per unit in heat exchange, and has higher system investment than other types of water-source heat pump, so that it is generally applicable to residential buildings with small unit and low temperature control standard, and hardly applicable to large air-conditioning engineering with high temperature control stability and standard.

When main heating pump is faulty, the system still can assure the temperature control, which is applicable to high end hotel, artificial weather room, plant factory, farm green house and so on that require stable output temperature and reliable system operation, so that system requires reserve heat pump, which causes the increased power and investment.

Because the water-source heat pump outputs variable power at intervals, the present technology only provides air-conditioning energy by directly outputting energy through secondary cycling thermal storage medium, which means that the water-source heat pump can not store energy during the operation, so that reliable and stable constant output can not be realized to meet the requirement of energy-saving operation mode.

In addition, low capacity and quick temperature changing of the present heat source result in large temperature variation and power consumption, so that the air-conditioning system with underground exchanger needs to increase the capacity of the underground and reduce the complexity and the occupation of the construction.

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