Titanium plate heat exchanger is a kind of high efficient and compact heat exchange equipment, it is as a continuous low temperature sterilizer at first, then begin to apply in food industry. Due to the superiority of the titanium performance, it gets the favor of many industries to made a lot of different products have been applied to many places. At present titanium plate heat exchanger has been widely used in petroleum, chemical, electric power, metallurgy, machinery, energy and other industrial fields, becoming very competitive in the family of the heat exchanger.