Tianjin Adar Ltd. (www.yada-cbwz.com) is located in Tianjin Nankai District Miyun Road, South Road, Hardware City, a district 17, No. 103, Contact: Manager Ma [Jada Industry and Trade to recommend the star product - ship goods] five, how to choose the boiler: the importance of demineralized water boiler? Ordinary water into the boiler, very easy to scale. Because steam is evaporated continuously while the boiler water can cause calcium, magnesium, impurity concentration is very high, the natural water of 30-50 times, which is very alarming rate of fouling marine crane prices, may not need six months to a In marine crane, you can have 1-2mm fouling. Scale lethal threat to the safety of the boiler deck cranes, severe, can cause the boiler to burst! After the thermal conductivity of the scale appear only 0.5% less than metal, the boiler fouling occurs, if no scale to achieve thermal efficiency when only raise the temperature inside the boiler heating surfaces, such as: When the furnace wall temperature of 250 ℃ Marine Cranes models, when generating a scaling 1mm, if you want to achieve the same thermal efficiency, the wall temperature should be raised to 650 ℃, heat absorption rate is very low at this time, increasing energy consumption. [Jada Industry and Trade to recommend star product - marine crane ship goods] Introduction: In recent years, marine crane control by States military, civilian marine engineering widespread attention, and study of such non-linear, strong coupling owe drive system Control is also important theoretical value and universal significance special Disturbance. Marine crane control is mainly divided into the hull to reduce the impact of vertical movement control and suppress anti-lateral load swing swing two ways. For vertical control, the common method is via mechanical structure crane aboard the ship to receive and perceive their relative motion, so sling length change and receiving ship heave motion synchronized to the relative movement of the two ships to compensate, completion of the landing transport loads on this basis.