The main tasks of the auxiliary equipment monitoring center in the hydropower plant are: receiving various control commands and transmitting the control commands to the local control unit through the field bus to complete the real-time control of the auxiliary equipment; receiving the local control unit The various types of information of the auxiliary equipment are processed, printed, displayed, and saved as needed, and the processed information is uploaded to the host of the hydropower monitoring system.
Measurement and control objects: mainly oil pump, pressure transmitter, differential pressure transmitter, pressure switch, oil level signal meter and automatic air supply device. In the automatic operation mode, the working oil pump and the standby oil pump are automatically started and stopped according to the pressure in the pressure oil tank.
When the pressure in the pressure tank drops to a certain value, the working oil pump is started; when the pressure in the pressure tank continues to drop to a certain value, the standby oil pump is started, an audible alarm and a standby oil pump start and a hydraulic device failure signal are issued; When the pressure in the pressure oil pump tank rises to a certain value, each oil pump is stopped and the standby oil pump start signal is returned.
When the oil level in the pressure oil tank rises to the upper limit of the normal working oil level, if the pressure in the pressure oil tank is lower than a certain value, the gas supply solenoid valve is automatically opened and the exhaust solenoid valve is closed, and the pressure oil tank is ventilated and issued. The oil tank proportional misalignment fault signal of the pressure tank; when the oil level in the pressure tank drops to the lower limit of the normal working oil level or the pressure in the pressure tank rises to a certain value, the gas solenoid valve is automatically closed and the exhaust solenoid valve is opened at the same time. Stop the gas supply to the pressure tank and reset the pressure oil tank proportional misalignment fault signal.
Auto Recovery Rapid Door
Zippered Quick door Features
Open: 1.2-2.0m/Sec
High airtight energy efficient : Zipper patented technology and curtain rail technology combines high seal ability for maximum energy efficiency
Self-healing maintenance cost savings :When the door by the impact and dislocation occurs , repeat mosaic patented technology that is deralling repair system starts automatically , without any manual and automatic reset to its original state force to effectively reduce maintenance time saving cost
High security : Curtain soft and elastic , without any load at the bottom of the door to change , to ensure that the operator in an emergency state in the collision to the door when the operation will not cause harm
Push pull dual hinge system :unmatched safety record and absolute tightness in push pull twin shaft system, loading close dependence and the curtain at the bottom of the traditional fast door to achieve , you can drive dual axis system so that the upper curtain sprocket perfect bite does not depend on the door of its own weight can be achieved fast closing , this patented technology to avoid the hard parts usage of
More than one million times the durability performance : speed doors reduce the use of materials , easy to wear , strong and flexible curtain is very durable , can withstand million of opening and closing operation ,
in the use of some products has reached 500 million times for opening and closing
The soft curtain anti-collision fast door has simple structure design, which is beneficial to stable operation, reduces the frequency of repairing and replacing wearing parts, effectively improves the durability and service life of the equipment, and the curtain can be derailed in the event of an accidental impact, and during the ascent Automatic reset, no need to manually repair and reset the whole process.
Heating devices are included on both sides of the column.
The structural design of this product is characterized by trouble-free operation up to 150,000 times per year. It has the highest practicality and the lowest maintenance cost.
Self Recovery High Speed Door, air shower door, pharmaceutical clean room door
SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfahsrud.com