Evaporative cooling and mechanical refrigeration compound water chilling unit

Abstract

The invention discloses an evaporative cooling and mechanical refrigeration compound water chilling unit, which comprises an evaporative cooling water chilling unit and an air-cooled water chilling unit which are connected. The evaporative cooling water chilling unit comprises two-stage air coolers connected in parallel, two-stage direct evaporation coolers connected in parallel, an air inlet a, an exhauster and an exhaust port a. The air-cooled water chilling unit comprises an evaporator, a compressor and a condenser which form a closed loop. The compound water chilling unit consists of the evaporative cooling water chilling unit and the air-cooled water chilling unit which are connected in series and in parallel, wherein the evaporative cooling water chilling unit comprises the air coolers connected in parallel, the direct evaporation coolers connected in parallel and air and water filters. Large-range coarse adjustment for the water temperature is performed by using the evaporativecooling technology with lower running cost, and small-range fine adjustment for the water temperature is performed by using the mechanical refrigeration technology with higher running cost. Therefore, the compound water chilling unit meets the requirement of temperature reduction amplitude of the water temperature, controls the precision requirement of the water temperature, has higher water-saving potential and greatly improves the performance coefficient of the water chilling unit.

Description

technical field [0001] The invention belongs to the technical field of air conditioning and refrigeration, and in particular relates to a compound chiller composed of an evaporative high-temperature chiller and a mechanical refrigeration chiller. Background technique [0002] Evaporative cooling air-conditioning technology is an environmentally friendly and efficient way to obtain cold wind and cold water through the heat and humidity exchange between water and air by using the natural moisture of dry air and renewable energy, with the help of the difference between the dry bulb temperature and the dew point temperature in the ambient air. Economical way of cooling. [0003] The use of evaporative cooling air-conditioning technology to produce high-temperature cold water has a significant energy-saving effect. However, evaporative cooling air-conditioning is affected and limited by outdoor climate conditions after all, and the temperature of the high-temperature cold water p...

AI Technical Summary

Problems solved by technology

[0003] The use of evaporative cooling air-conditioning technology to produce high-temperature cold water has a significant energy-saving effect. However, evaporative cooling air-conditioning is affected and limited by outdoor climate conditions after all, and the temperature of the high-temperature cold water produced is difficult to stabilize and meet the specified requirements.

Therefore, the current evaporative cooling chillers are mostly used in dry areas, and their use in areas with medium or high humidity is limited.

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