化学水处理系统流程（Chemical water treatment system flow）

化学水处理系统流程（Chemical water treatment system flow） 化学水处理系统流程(Chemical water treatment system flow) [share] chemical water treatment system process by filtering advertising 1, the system of chemical water treatment process The original system of chemical water treatment process: tap water, cistern, booster pump, activated carbon filter, cation exchanger, carbon dioxide removal device, water tank, pump, intermediate, mixed anionic exchanger ion exchanger, demineralized water tank, desalted water pump. The operation of the existing system of investigation and analysis of water quality analysis report, suspended solids content in tap water is high, seriously polluted activated carbon and ion exchange resin. Therefore, the construction of 3 increase efficient fiber filter depth filtration of tap water. Construction of the system of chemical water treatment process: tap water, cistern, booster pump, high performance fiber filter, activated carbon filter, cation exchanger, carbon dioxide removal device, water tank, pump, intermediate, mixed anionic exchanger ion exchanger, demineralized water tank, desalted water pump. The connection and operation of 2 construction projects, and the original system The original 120t/h output level in equipment of Salt + mixed bed 2 columns, the construction only then expanded 1 column output for 120t/h same equipment. Desalted water pump, regeneration water pump, compressed air system, acid-base regeneration system and waste processing system shared with the original system. 3 high efficiency filters using parallel operation mode, normal mode 2 Taiwan operation, 1 standby. HEPA filter not only required for the continued construction of tap water pretreatment, and to the original system of tap water pretreatment. 2 sets of activated carbon filter and a desalting equipment to form a series, the series operation mode, normal mode 2 column operation, a spare column. Each series of 2 sets of activated carbon filter, when good water quality 1 sets of operation (removal of free chlorine), 1 standby; when the influent water quality deterioration when the 2 run at the same time (organic matter removal). The mixed bed parallel, normal operation 2 operation 1 standby. 3 sets of a class in addition to switching valve is arranged between the unit and the salt 3 by mixed bed, existing systems, only #1 level desalination equipment and #1 #2 level and mixed bed desalting equipment and #2 mixed bed can also cross operation, #1 level desalination equipment and #1 #3 level and mixed bed demineralizing equipment and #3 can also cross operation of the mixed bed. The start-up of the unit, the 3 column equipment and put into operation, the water supply to meet the maximum. Three, system configuration System network structure diagram The system consists of two units of a host computer and a set of redundant PLC system. The computer system uses an industrial computer monitoring and control system is powerful, installed on the computer Intellutiong FIX7.0 industrial monitor and control system software, through the configuration of system design and implementation of the whole system is reasonable, the chemical water treatment process monitoring and control. The host computer system and a strong industrial control transmission network, realize the automation of management and control of the whole production process engineering. PLC selected techwayson company PPC11 redundant controller, control system with hot standby redundancy mode, connecting field need to monitor and control remotely via I/O, remote I/O by the communication processor and PPC11 series I/O module. The main control station redundant system can guarantee the maintenance time is zero, to minimize human intervention on the system. Between the system and the remote I/O control station adopts high performance industrial Ethernet bus transmission network main control system hot standby, transmission reliability, safety and stability of information. Install PLC control unit between the Ethernet transmission network computer system. Is the international standard Ethernet, industrial Ethernet has reached the requirements of high transmission safety and reliability, has been widely used in maintenance procedures, transfer plant data, monitoring, man-machine interface, connected to the MIS and record the event and alarm system MES. Industrial Ethernet has high transmission rate (currently 100M), the hub technology uncertainty, without considering the topology structure, transmission medium physical network diversity (twisted pair, coaxial cable, optical fiber), the application may not be considered a hub network expansion etc.. By combining Ethernet and field monitoring and control of the host computer system closely as a whole, constitute a complete system. In such a high-speed transmission network, can easily use the unique PLC system functions, the realization of computer online remote diagnosis function of the entire control system. Four, control function Water treatment system of all control valves by local and remote control, even in the case of complete fault control system can also be realized by local control manual water, boiler water to ensure reliable. The control box adopts 3 bit switch, respectively, on the spot and place open remote control. Select the remote control, the control valve by an operator in operation control station. The operator can operate in the station for monitoring state and motion control of the control valve, to control the control valve can be divided into manual and automatic mode selection. In the control valve by PLC logic program automatic control mode, control valve by the operator directly in the interface and click on the control in the manual mode. Interface legend Operation and regeneration of a desalting equipment by PLC automatic control, also can through the keyboard and mouse in the control room of the operating station for remote operation. A desalting equipment water conductivity exceeds the specified value or the cycle of water up to the specified value, automatic splitting and alarm, and then put the regeneration program automatically. Operation and regeneration of ion exchange by PLC automatic control, or through the keyboard and mouse for remote operation. When the mixed ion exchanger outlet guide The electric rate of silica and exceeds the specified value, or the cycle of water up to the specified value, automatic splitting and alarm, and then put the regeneration program automatically. HEPA filter and activated carbon filter is realized by PLC automatic control, also can use the keyboard and mouse in the control room of the operating station for remote operation. When the outlet pressure difference exceeds the specified value, or the cycle of water up to the specified value, automatic splitting and alarm, and then put into automatic backwashing program. The above operation used by the operator to perform, the implementation of the new system after the operation can be without operator intervention. The middle water level automatic control is realized by PLC (by adjusting the cation bed entrance valve), the first level desalting system into stable water level in the normal position of the middle water tank. The middle water pump start and stop of the middle water level interlock, low level and high level pump pump, ensuring the safe use of middle water pump. Control valve, pump and other display, automatic / manual / local operation and selection interlock. All the system flow and pressure monitoring in the operation interface in real time, the water flow, the anion bed outlet flow rate, outlet flow totalizer and mixed bed display record, can view one level of salt removal, mixed bed regeneration water. The control system of each column of the desalting unit operation, stop and regeneration procedures, automatically adding acid and alkali procedures, automatic / semi-automatic start another deminoralizers program. For sequence control set the necessary step by step operation, group operation or separate operation, and the operation of jump, interrupt or bypass function. The system has been put into operation and activated carbon cleaning, primary desalting regeneration and mixed bed regeneration can be done automatically by the system operator, or step extension step manual intervention in the operation station set time and time remaining in each step and step, Bu Yan display interface etc.