Frequency conversion of water pump

1. Transformation program to pump adjustment methods are: throttling regulation, return regulation, frequency regulation, etc., of which frequency conversion regulation is a highly efficient energy-saving regulation. To pump and other high-power rotary machinery to implement frequency conversion control is the power plant for energy-saving emission reduction is a very effective way. Over the past few years with the development of exchange frequency conversion technology, Shanghai Bao Ai valve factory has solved the exchange of high frequency harmonics generated during the power and the impact of the motor, while it has high regulation efficiency, speed range, can Do CVT, high-precision operation and other advantages, for which decided to adopt the program to transform the pump frequency conversion. After the transformation of the water supply system to maintain the mother of the control mode of operation - the use of frequency conversion mode, the boiler feed water regulating door opening from the original 60% to 90%, the remaining 10% of the opening used to do a fine adjustment of a single furnace water supply. Transformation of the selection of ZNVERT-A6H2000 / 06YB 10 high-voltage inverter two, the inverter start and stop and adjust the frequency of operation by the control room installed in the control room backstage control platform operation. 2. Two feed pump frequency conversion energy-saving analysis Under normal circumstances, the two feed pump frequency operation, the pump outlet high pressure water-cooled mother pipe put into operation, feed water by the high-pressure feed water manifold after the sum of two, all the way on the 1st Machine plus high into the No. 1 furnace, the other road by the No. 2 machine plus into the No. 2 furnace, high pressure to export high-pressure heat manifold cut, outage, due to the two furnaces basically the same amount of water, Each feed pump performance curve and pipeline performance curve can be considered the same with a single feed pump operation, energy-saving effect is the same, that is, two Shanghai Bao Ai Pump Factory pump variable frequency operation compared to the frequency power saving operation of the power As follows: N = 272 x 2 = 544 KW saving rate of 22 88% 3 other issues in the transformation of the feed water pump feed water pump to maintain a modified alternate mother control mode of operation, if the backup pump frequency conversion standby, from Linkage to reach the set output takes about 100s time, the safety can not meet the requirements, in addition to save investment from the consideration, decided to spare pump using frequency standby mode, without the exchange of frequency conversion, the inverter set two knife bypass, through Switcher switch to two sets of feed water pump can be put into operation, but the operation is still more cumbersome to switch. In addition to the direct energy-saving benefits of water pump frequency conversion, but also bring other benefits, including the power factor can be increased, the system reactive power requirements greatly reduced; to achieve the motor soft-start to eliminate excessive starting current, reducing the sudden change in starting torque on the motor Of the electrical and mechanical damage, to extend the service life of the motor; reduce the friction on the bearings and reduce bearing vibration; reduce the working fluid on the valves and piping erosion and reduce maintenance workload. 4. Conclusion The ESC system plays a very important role in turbine control. If it fails, it will directly threaten the normal operation of the unit. The relevant technicians must start with the maintenance process, routine maintenance and management, oil quality supervision, equipment file management, etc. In many aspects, it is necessary to improve the quality of every link, at the same time, it is necessary to strengthen the technical reserve of maintenance personnel and pay attention to the daily accumulation of experiences of eliminating and eliminating defects in order to maintain the long-term normal operation of the EH system.

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   Tarpaulin Roll Goods, laminated fabric winded on a hard paper core, wrapped with same fabric and sealed with adhesive  tapes, a shipping mark sticker on each roll

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Production Process: 

Raw Material   Yarn Extruding   Weaving Fabric Laminating  Welding Cutting  Putting Eyelets olding and packing

Pictures:

We are leading and professional manufacturer and exporter in Tarpaulin industry for more than 18 years. Wealth of experience give us great confident to provide good quality products, favorable price, best service and timely delivery time. We work like partners with many worldwide customers and offer them very good support in their market. Contact us today! We sincerely wish to start long term cooperation with you also, our kind new customer!   

Orange PE Tarpaulin

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