On December 21, the European Commission issued an announcement saying that since the companies in the member states did not file an anti-dumping sunset review application against the anti-dumping measures of urea and ammonium nitrate originating in Algeria, Russia, Belarus and Ukraine, it was decided that since 2011,12 The above-mentioned anti-dumping measures were officially cancelled on the 22nd of this month. In June 1999, the European Union initiated anti-dumping investigations on mixed solutions of urea and ammonium nitrate originating in Algeria, Russia, Belarus, and Ukraine; in September 2000, the European Union made a definitive final ruling on the case. Combined Flow Closed Cooling Tower
Closed Cooling Tower is operated by circulating water or fluid, which is divided into two closed loops.
1. Circulation in the tower: the circulating water or fluid passes through the hot zone environment. After the water temperature rises, it enters the surface cooler in the tower, and the heat is sent to the environment outside the tower through the surface cooler and ventilation fan. The cooled circulating water or fluid is sent to the heat source by the water pump.
2. Circulation outside the tower: the spray water is sent to the spray system by the water tank through the water pipe. After spraying, the spray water first exchanges heat with the filler, so that the spray water can be cooled rapidly. At this time, the water contacts the surface of the surface cooler for heat exchange. Part of the hot steam is discharged through the ventilation fan, and the cooled spray water drops to the water tank for secondary circulation to form an external circulation for cooling.
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