The reporter learned from yesterday that, in August, China's excavator sales were 7,864 units, a year-on-year decline of 11.10%, which was the fourth consecutive month of negative growth since May of this year. People in the industry believe that although September and October will usher in a small upsurge of traditional sales, this year may be "not busy in the peak season," and excavator sales growth will further decline.

Duan Jiaxuan, researcher of China Investment Advisor Machinery Industry, pointed out that after experiencing rapid growth in 2010, the construction machinery market was faced with an unprecedented challenge in 2011, and the decline in sales growth for a period of time will become an inevitable trend. Although the overall market demand is soft, the performance of domestic brands is very prominent. China Construction Machinery Business Network's latest survey statistics show that in August, the local brand's market share reached 38.53%, and five years ago, the local brand's market share was only 15.51%. Shangpu Consulting believes that as China's influence in the international market is gradually expanding, the excavator industry still has a lot of export opportunities.

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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Wuxi Ark Fluid Science Technology Co., Ltd. , https://www.fangzhou-arkfluid.com