ã€Centrifugal Pump Network】 Centrifugal pump without seal, also known as non-leak centrifugal pump, can be divided into magnetic drive centrifugal pump (hereinafter referred to as magnetic pump) and shielded pump, they are only in the structure of the static seal without the dynamic seal, so the liquid Can guarantee a drop of leak. With the continuous improvement of environmental protection requirements, the application of sealless centrifugal pump is also more and more widely. Non-sealed pump running state monitoring Magnetic pump protection system includes: (1) bearing condition monitor If the user needs, some world-renowned manufacturers can be configured non-contact bearing condition monitor, used to prevent bearing wear failure, coupling The decoupling of the rotor, rotor stuck, power system failure and so on. (2) Motor Power Monitor The motor power monitor monitors the motor power to avoid low flow or dry operation. (3) Temperature Probe Use a temperature probe (RTD) to monitor the temperature of the baffle to reflect changes in pump condition during operation. Can prevent the dry pump operation, internal and external bearing wear and tear, severe cavitation, stuffy pump, pump stuck, and the system overheating. (4) differential pressure switch with differential pressure switch to monitor the pump outlet pressure changes, to prevent the pump dry run, serious cavitation, boring pump, pump stuck. Especially for container emptying / tank truck unloading and so on. Shielding pump protection system includes; (1) bearing wear monitor bearing wear monitor mechanical, electrical, mechanical and electrical and other types. When the shielded pump is running, it can monitor the running condition of the bearing at any time through the bearing wear monitor. When the bearing wear is large, it is necessary to stop or repair the bearing or replace the bearing. If the bearing is damaged during operation, stop immediately. (2) current protection shield pump in the case of air-free operation, will result in bearing damage. When the flow rate dropped significantly, the current will be greatly reduced, this time the current protector can automatically move and stop. Similarly, when the load is too large, the current increases more, the current protector will act automatically cut off the current, the motor stops running to prevent accidents. In addition to the above two kinds of protection devices, the shield pump can also be equipped with a heat exchange capability monitor, a liquid level monitor or an internal pressure protector inside the motor, if needed, in order to meet the needs of shielding the pump for different purposes. (Editor: Xiaoxia QQ:) Recommended reading: 2017 exhibition information
Industrial Automatic Quick Action Rolling Door
Automatic quick action rolling doors are mainly for industrial use, in factory and warehouses. Such quick moving door can open and close in several seconds only, to enhance passing speed of material.
And quick rolling doors can be equipped with auto motion sensors to realize automatic opening and closing, when workers or vehicles come.
quick roller door, quick opening door, quick moving door
SHANGHAI KENVO DOOR CO.,LTD , https://www.kenvodoor.com