Special cooling system for thermosetting powder coating production line

Abstract

The invention discloses a special cooling system for a thermosetting powder coating production line. The special cooling system comprises a water storage barrel, a refrigerating fluid machine and a plurality of cold-heat heat exchangers. Each cold-heat heat exchanger comprises a shell, an air inlet, an air outlet, a plurality of finned tubes, liquid inlets and liquid outlets. Each finned tube corresponds to one liquid inlet and one liquid outlet. Each shell is connected with a liquid inlet header pipe and a liquid outlet header pipe. Each liquid inlet is connected with the corresponding liquidinlet header pipe through a liquid inlet branch pipe. Each liquid outlet is connected with the corresponding liquid outlet header pipe through a liquid outlet branch pipe. The liquid inlet directionof the liquid inlet header pipes is opposite to the liquid outlet direction of the liquid outlet header pipes. The refrigerating fluid machine is further connected with a cooling tower for cooling therefrigerating fluid machine. The cooling tower is connected with the refrigerating fluid machine. According to the special cooling system, one large-scale refrigerating fluid machine is used for supplying cooling water to the plurality of cold-heat heat exchangers simultaneously, overall management is facilitated, and the production cost is lowered. Moreover, the liquid outlet smoothness of the cold-heat heat exchangers is improved, and the backflow circulating efficiency of a whole loop is guaranteed. Accordingly, the refrigerating effect is guaranteed, and the heat exchange efficiency is improved.

Description

technical field [0001] The invention relates to a cooling device, in particular to a special cooling system for a thermosetting powder coating production line and a cooling method thereof. Background technique [0002] When the various equipment (grinding equipment, hot extrusion equipment, drying equipment, etc.) After the cold and heat exchange between the cooling liquid and the air, cold air is provided to the grinding equipment to cool down; The liquid inlet pressure at the front liquid inlet is the largest, and the liquid inlet pressure at the last liquid inlet is the smallest, so the liquid outlet pressure corresponding to the front liquid inlet is often the largest, corresponding to the rearmost liquid inlet The liquid outlet pressure of the liquid outlet is often the smallest, and because the liquid outlet pressure between two adjacent liquid outlets will cancel each other out, if the liquid outlet corresponding to the last liquid inlet is used as the initial The l...

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