Evaporative condensation air-conditioning heat pump system

Abstract

The invention relates to an evaporative condensation air-conditioning heat pump system which comprises a compressor, a four-way valve, a use-side heat exchanger, a finned tube heat exchanger, an evaporative condenser, a water sprinkling device, a liquid storage device, a drying filter, a throttling device, a vapor-liquid separator, fans, an electromagnetic valve D, an electromagnetic valve A, an electromagnetic valve B, non-return valves, a pipeline and a control loop, wherein the finned tube heat exchanger and the evaporative condenser are arranged at a condenser pipe end connection port of the four-way valve; the four-way valve switches the air suction and discharge directions of the compressor to achieve refrigeration and heating functions, and flow directions are further controlled by the electromagnetic valves and the non-return valves; and during heating, heat is absorbed from an air side by the finned tube heat exchanger. The evaporative condensation air-conditioning heat pump system has the beneficial effects of greatly improving the operation energy efficiency during refrigeration, having better energy efficiency, ensuring good quality of delivered product, being beautiful, occupying a small area, effectively reducing the construction cost, gaining a heating mode and enlarging the application range.

Description

technical field [0001] The invention belongs to the technical field of refrigeration and air-conditioning equipment, and mainly relates to an evaporative condensing air-conditioning heat pump system. Background technique [0002] Evaporative condensation technology is a highly efficient and water-saving technology. The circulating water is evenly distributed on the surface of the heat exchanger to form a continuous water film, and the heat of the fluid inside the heat exchanger absorbed by the latent heat of water evaporation is transferred to the air by using the driving force of the enthalpy difference of the unsaturated air. Compared with air-cooled cooling equipment, evaporative condenser equipment can save more than 30% of electricity; compared with traditional open cooling towers, its efficiency is equivalent to the integration of traditional water condensers and cooling towers, and the efficiency is higher , Effectively reduce the escape rate of circulating water. E...

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Problems solved by technology

The disadvantage is that the specific heat capacity of the air is small, the efficiency of the air-side heat exchanger is low, and the equipment needs a large amount of ventilation and a large heat transfer temperature difference to meet the use requirements. Therefore, during cooling operation, the condensation temperature of the air source heat pump is higher than that of the water-cooled unit. About 10°C, which is more than 13°C higher than evaporative cooling, resulting in low energy efficiency of the refrigeration system. Therefore, it is necessary to complement the advantages of evaporative condensation technology and air source heat pump technology to better meet the energy-saving requirements of comfort air-conditioning products

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