Chemical ultrafiltration water production system equipment and its control method

Abstract

The present invention relates to a chemical ultrafiltration water production system equipment and a control method thereof. The equipment includes: at least one ultrafiltration raw water tank for providing water source; multiple ultrafiltration water production pumps connected to at least one ultrafiltration raw water tank, multiple One ultrafiltration product water pump is set in a sequential start-stop mode, and multiple ultrafiltration product water pumps are used to pump out the water source in at least one ultrafiltration raw water tank; multiple ultrafiltration devices are electrically connected to multiple ultrafiltration product water pumps. The quantity of one ultrafiltration product water pump is greater than the quantity of multiple ultrafiltration devices, and multiple ultrafiltration devices are used to control the start or stop of multiple ultrafiltration product water pumps and receive and filter water sources. When any ultrafiltration device in multiple ultrafiltration devices The filter device is started, and a signal is sent to control multiple ultrafiltration product water pumps to start one of the ultrafiltration product water pumps in sequence. The invention can intelligently adjust the number of ultrafiltration water production pumps operating according to the number of ultrafiltration devices in operation, and make multiple ultrafiltration water production pumps active and standby each other, so that the automatic standby rate, equipment fault tolerance and utilization rate are greatly improved.

Description

technical field [0001] The invention relates to a chemical ultrafiltration water production system in a thermal power plant, in particular to a chemical ultrafiltration water production system equipment and a control method thereof. Background technique [0002] The chemical ultrafiltration water production system of thermal power plant units generally includes ultrafiltration raw water tanks, ultrafiltration clean water tanks, ultrafiltration devices, ultrafiltration water production pumps, reverse osmosis equipment, etc. The water pump and the ultrafiltration device (reverse osmosis pump and reverse osmosis device) are controlled one-to-one, and the control of the ultrafiltration device and the ultrafiltration product water pump is manually selected by the operating personnel. Each set of ultrafiltration devices has a set of sequential control program, which can realize program-controlled start and stop. Each of the three sets of ultrafiltration devices corresponds to one ...

AI Technical Summary

Problems solved by technology

[0004] 1. When the running ultrafiltration water pump fails, the entire set of ultrafiltration devices of this series will be out of operation, and the operator needs to re-select the ultrafiltration water pump and ultrafiltration device for overall start-up operation

[0005] 2. The equipment backup is manual backup, the automatic backup rate is zero, and the equipment utilization rate and fault tolerance rate are low, the automation level is limited, and it takes a lot of manpower to monitor operation and maintenance. The reverse osmosis device has the same problem

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