Defrosting device for closed type heat source tower

Abstract

The invention relates to a defrosting device for a closed type heat source tower. The defrosting device for the closed type heat source tower comprises an external defrosting system and an internal defrosting system, wherein the external defrosting system ejects solution to the external wall of a heat exchange plate pipe of a heat source tower and fins, and the internal defrosting system injects high temperature anti-freezing solution in the heat exchange plate pipe of the heat source tower. The external defrosting system comprises a solution pool and an external defrosting heating mechanism which is used for heating the solution inside the solution pool, wherein a liquid outlet of the solution pool is connected with a sprayer arranged above the heat source tower through pipelines, and a liquid storage tank on the bottom portion of the heat source tower is connected with a liquid inlet of the solution pool. The internal defrosting system comprises a liquid storage tank used for storing the antifreezing solution, an internal defrosting heating mechanism used for heating the antifreezing solution inside the liquid storage tank, wherein a liquid outlet of liquid storage tank and one end of the heat exchange plate pipe are connected with a liquid inlet of the liquid storage tank through the pipelines and are connected with the other end of the heat exchange plate pipe through the pipelines. The defrosting device for a closed type heat source tower combines energy storage and heating into one, and is capable of fully utilizing renewable energy sources and reducing heat energy cost. A defrosting process is completed quickly by defrosting simultaneously of internal heating and external spraying.

Description

technical field [0001] The invention relates to a defrosting device for a closed heat source tower. Background technique [0002] Building a conservation-oriented society and building a resource-saving circular economy is a long-term strategic policy for my country's national economic and social development. For air-conditioning systems, the energy consumption of cold and heat sources accounts for about 50% of the total energy consumption of air-conditioning systems. Therefore, seeking cheap and low-grade renewable heat and cold sources is a key measure for energy-saving and consumption-reducing measures for air-conditioning systems. The heat source tower can use the working medium to exchange heat and mass with the air, and collect air cooling or heat in a timely manner as needed. In summer, it is used as a cooling tower, using water evaporative cooling to provide a cold source for the air conditioning unit; in winter, it is used as a heat source tower, using low-temperatu...

AI Technical Summary

Problems solved by technology

There are two types of heat source towers: open tower and closed tower. The open tower has been introduced to the market for more than 5 years, and more than 30 sets (sets) of equipment have been installed. After several years of operation, serious exposure Problems: ①The equipment is seriously corroded, which seriously affects the service life of the equipment; ②The antifreeze is easy to drift away, polluting the atmosphere; ③The antifreeze is discharged without treatment; pollutes the water source; The gap increases the thermal resistance and affects the heat transfer efficiency; ⑤The concentration of antifreeze must be adjusted in time according to the change of the ambient temperature, and the freezing point performance is unstable, so it must be carefully observed during operation, and the post-management of the equipment is quite cumbersome; ⑥The ambient temperature is lower than Chlorine salt needs to be added at 8°C, which takes a long time to add salt, and the operation cost is high

The above scheme has not yet seen the real thing, nor the actual operation of the device

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