Solar heat storage type water and ground double heat source heat pump system for aquaculture soil pond temperature control

Abstract

The invention relates to a solar heat storage type water and ground double heat source heat pump system for aquaculture soil pond temperature control. Heating/refrigeration is realized based on a reverse Carnot cycle principle. The solar heat storage type water and ground double heat source heat pump system for aquaculture soil pond temperature control comprises a heat pump unit, a culture soil pond, an auxiliary heat storage pond and an underground heat source well, and also comprises a refrigerant loop, a water source loop and an underground water flow path which are formed in the system. Compared with the prior art, the solar heat storage type water and ground double heat source heat pump system for aquaculture soil pond temperature control has the following advantages: an idle pond stores heat to serve as a heat source of a water source heat pump, so heat supply quantity is large, energy efficiency is high and operation cost is low; and the defrosting problem of an air source heatpump is avoided, the whole culture period is stable in load, the installed capacity is small and the initial invest is low. The underground water with constant temperature serves as a heat source of the a ground source heat pump, so the solar heat storage type water and ground double heat source heat pump system for aquaculture soil pond temperature control is high in energy efficiency, wide in application range and stable in heat supply.

Description

technical field [0001] The invention relates to a dual heat source heat pump system, in particular to a solar heat storage type water-ground dual heat source heat pump system for temperature control of aquaculture soil ponds. Background technique [0002] Small shed farming is an important farming mode in the aquaculture industry, and it is widely used in farmland breeding areas in Jiangsu, Shandong and other places. Specifically, it is to cultivate by opening earthen ponds in farmland. Same as general aquaculture, water temperature control is very important for the growth of cultured species in earthen ponds. [0003] Solar energy is the main source of heat for earthen ponds in winter, but the solar energy stored in a single pond is limited, and additional heating is still needed. In traditional boiler heating equipment, coal burning will pollute the environment and has been banned. The operating cost of clean energy such as natural gas is too high, compressing profit ma...

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Problems solved by technology

[0005] In order to solve the problems of low energy efficiency, high initial investment, and poor practicability of the heat pump units used for temperature control in aquaculture soil ponds, and make full use of the solar energy stored in ponds and soil, the present invention proposes a solar energy system for temperature control in aquaculture soil ponds. Regenerative water-ground dual heat source heat pump system

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