Afterheat recovery type evaporation module and double-effect energy-saving evaporation system

Abstract

The invention discloses an afterheat recovery type evaporation module and a double-effect energy-saving evaporation system. The module comprises a groove type working medium heat exchange plate (6), aheat exchange air way (2), an afterheat source water separator I (3), an afterheat source water separator II (4), a guide disc (5), a cross-flow fan (10) and a circulating water tank (11). The modulesolves the problem that the same afterheat recovery type heating unit cannot be normally operated under the working condition of different types of heat sources; through refrigerating working mediums, an afterheat water source is combined with an air source; heat in the afterheat water source is firstly recovered to the greatest extent; and when the afterheat water source is intermittent or insufficient, the same equipment can be automatically switched to an air energy recovery mode for continuous operation, so that normal heat energy demands of users are guaranteed, and meanwhile, the purposes of maximal energy saving quantity and economical operation of the heating unit are achieved. The module is mainly applied to the field of energy conservation in production of hot water by afterheatrecovery.

Description

technical field [0001] The invention relates to the field of waste heat recovery and energy saving for hot water production, in particular to a waste heat recovery evaporation module and a double-effect energy-saving evaporation system. Background technique [0002] At present, many large factories and commercial buildings have a lot of waste heat from cooling water to be wasted on the one hand, and on the other hand, they have a large demand for hot water. The discharge temperature of the above-mentioned cooling water is relatively low, mostly around 30°C-40°C, such as central air-conditioning cooling water, fan water pump cooling water, thermal power station condenser cooling water, etc., when this part of heat energy is directly recovered, the temperature is relatively low, and the user Cannot be used directly. On the other hand, there is a discontinuous discharge of residual hot water, which occurs from time to time. Therefore, it is very unfavorable for the normal rec...

AI Technical Summary

Problems solved by technology

[0002] At present, in many large factories and commercial buildings, on the one hand, a large amount of waste heat from cooling water is wasted, and on the other hand, they have a large demand for hot water.

The discharge temperature of the above-mentioned cooling water is relatively low, mostly around 30°C-40°C, such as central air-conditioning cooling water, fan water pump cooling water, thermal power station condenser cooling water, etc., when this part of heat energy is directly recovered, the temperature is relatively low, and the user cannot be used directly

On the other hand, there is discontinuous discharge of residual hot water, and it sometimes disappears

Therefore, it is very unfavorable for the normal recovery and utilization of waste water and waste heat energy.

Images