The main heat exchanger is mainly produced by the Italian company Jia XX, other brands have similar technologies and processes, there is a certain amount of use in Europe. Made of 306 stainless steel, the domestic manufacturers had a laboratory test had the relevant parameters biased in favor of 304 stainless steel. Since the factory said to be 306, we tentatively called 306 stainless steel. The card Va, B license, A licensing other manufacturers are often employed in the form of the main heat exchanger. Analysis: Starting from such a main heat exchanger requires the production process. The plant on the 306 stainless steel pipe wall thickness 0.8mm disc commercially available machine, in a cylindrical disc type, pressure at both ends, the tube was compressed into oval tubes. Because of the longer tube can not be completely uniform scratch in the end, so that during the pressing process, there will inevitably be the case of a partial cut through the flat pipe, and insufficient local flat tube, resulting in uneven diameter, so the use of the segment (cell) method pressed. Such rejection rate is reduced, the yield can be improved, but also can be designed to a fixed power (8-10KW / section) of each cell. So you can always add and subtract the number of hot water furnace according to design, adjust the power numbers. But this creates new problems, not butt weld between two units, one welding operation is no space, one is butt-welded seam is annular throughout the main heat exchanger, annular weld to half of the slit 900 in the barrel of a high temperature, to be in the half of the outer tub 200, and the same coefficient of expansion, we can not find a suitable welding consumables. Since not welded in series, so manufacturers using parallel method, several units in parallel in a sub-manifold, so that a four-way water warmed in the main heat exchanger, the problem is solved. As a result of the way just division multiple tube form, the diameter of each cell must be greatly reduced, thinner diameter, is about 30% of the normal section of the tube. In the water quality and good after-sales service in Europe, the use of relatively normal.
Dairy production and processing sectors, need a lot of steam on food drying, sterilization, stereotypes, such as processing, steam hot water furnace essential. Xinjiang Ake Su Xinnong Dairy Co., Ltd. as a local brand, has a large market users. 2016, Akzo increased demand for dairy production, the original steam boiler company can not meet today's production needs. In the same year, Akzo dairy cooperation with our company, signed a series SZS 6 tons of steam pipe steam boilers, steam support for the dairy industry dairy production Aksu.
For smaller area of the region and family, you can use the hot water furnace and other equipment; but for such a large area, such as area hotels, the boiler can not meet the daily water needs of the hotel, this gas boiler is able to play a very good role.
Using Method 2 tons of gas steam hot water furnace 1, to check before the start of attachment deaerator water level control valve, water level alarm, steam pressure control valve, seal means (previously filled with water) and a variety of instrumentation has been in the supervision normal state, does not meet the operational requirements should be adjusted. 2, slowly start the pump inlet, inlet temperature and pressure recording. 3, the water level regulating valve before the valve is opened, the bypass valve is closed. 4, the exhaust valve slightly open top. 5, opening the upper valve tube steam heating tank, the heating temperature in the tank. 6, the valve is opened the steam pressure regulating valve for steam heating, inlet pressure and temperature recording 7, when the water level has reached the level indicated in Table normal level (1/2 water gauge), a thermometer indicator tank is about 104 deg.] C, starting feed pump, open the water supply valve, from start to normal supply about half an hour. 8, deaerator during normal operation, the upper portion of the exhaust valve opening degree of about 1/4 turn around. 9, the steam supply valve is closed upper deaerator steam heating tubes. 10, at regular intervals laboratory water, water's oxygen content, record the value of various supervision instruments