详情描述

FV-Ⅱ-4000 Integrated Water Purification System Module


Modular integrated water purification equipment structural description

This modular water purification system consists of five components (pocket-shaped grid flocculation reaction zone, balanced transition irrigation zone, inclined tube sedimentation zone, sludge collection and discharge zone, V-shaped filtration zone), incoming water electric valve, incoming water flow meter, level gauge, turbidity/remaining chlorine, modular water purification equipment, dosing equipment actuator, disinfection equipment actuator, water backwash module, steam backwash module, and drain valve operation in manual/automatic/remote mode.

This modular water purification unit features automatic water intake, automatic timed sludge discharge, automatic backwashing, and can control the automation of its own equipment and the automatic interlock of other related equipment based on the liquid level of the clear water tank.

Utilizing grid flocculation pond for reaction flocculation, with a box-like structure, it is a crucial initial process among the three conventional physical treatment technologies in waterworks. Prior to the raw water entering the grid flocculation and sedimentation stages, it must pass through the tube-type mixer and dosing port where flocculant (solution) is added. After the initial mixing, the water must pass through multiple layers of grid flocculation, further slowing the flow rate. As the water flows through the grid holes, it contracts, expands after passing through, and the flow rate decreases. Continuous segmented turbulence ensures that the floc particles undergo multiple repeated collisions, effectively squeezing out water within the floc. Under the action of the flocculant, dense flocs that are easy to separate are formed, which then settle.

The sedimentation area is equipped with honeycomb inclined tube media (with a pore size of 35mm and thickness ≥δ0.6mm). The material is robust against sudden water volume changes and shock loads, featuring inclined tube media made of ethylene propylene copolymer (modified). This raw material boasts a long service life underwater, high strength, and excellent shock resistance. It allows for a thorough reaction of raw water, suspended solids, and chemicals, enabling the formation of large floc flowers in the water as they circulate in the distribution area, coming into contact with impurities. The larger formed floc flowers are denser and heavier than water, gravity-settling to the bottom sludge collection area. Smaller floc flowers, with a density close to water, also enter the inclined tube sedimentation area. Due to the adsorption and adhesion of the floc to the walls of the inclined tubes, the system operates continuously. Consequently, the floc on the inner wall of the inclined tubes accumulates more over time. As the floc rises with the water flow and loosens its hold on the inclined tube walls, it slides down into the sludge collection area. The sludge in the collection area is automatically discharged to the outside drainage channel through the drainage valve under the force of water gravity (static pressure).

The filter pond backwashing is equipped with a Roots blower and pipeline, cables, control cables, as well as a power distribution cabinet and control cabinet, all of which are automatically controlled by an integrated device's PLC control box and its programmed control.

Integrated Water Purification System Operation Steps Logic Chart

Modular integrated water purification equipment's main technical advantages

    ◆ Designed for the source water quality; utilizes reasonable design parameters and purification technology, aiming for simplicity and reliability.

Intelligent Inflow System; intelligently controls and adjusts valve opening based on the feedback signal from the inflow flow meter, stabilizing the inflow rate without human interference, achieving intelligent and stable water production.

    ◆ Utilizes a grid-type static mixer; achieves instant mixing by the internal cross-mixing, which generates分流 (diversion), cross-mixing, and reverse vortex effects. This ensures that the added chemicals are rapidly and evenly dispersed throughout the water body, achieving instant mixing with excellent results and reducing the user's investment.

◆ Bag-type grid flocculation device; enhances flocculation efficiency, reduces flocculation time, and saves flocculant dosage. The formed flocs from raw water and chemical solution repeatedly collide in the reaction zone, resulting in larger floc particle volume and denser flocs.

Net water treatment sedimentation zone; employs a balanced overflow water distribution area, with uniform water flow speed, stabilizes flow rate, even water distribution, and no bypassing phenomenon.

◆ Integrated water purifiers utilize slanting tube packing; made of 304 stainless steel with automatic welding, the slanted holes are smooth with consistent sizes and no deformation, offering stable surface load increase in the sedimentation zone, reducing water turbulence, no dead-end crossflow, enhancing sedimentation effect, and improving sedimentation efficiency. Features include long service life, high strength, and excellent resistance to impact.

    ◆ Sludge collection and drainage area; utilizes U-shaped sludge collection channels, each water purification unit equipped with multiple channels. Integrated with our company's siphon expansion drainage device, it effectively increases sludge concentration, ensures thorough and clean drainage, uniform and spotless, with no dead corners, short drainage time, and no water waste.

The filter pond utilizes a traditional gravity-based filter pond; the filter material layer is in a double-layer configuration, designed with a filtration rate of 5-7 m/h, featuring advantages such as high pollution trapping capacity, deep sediment permeation layer, long filtration cycle, and stable effluent water quality.

Smart Water Control Module; the water outlet intelligent regulating valve adjusts the valve opening based on the liquid level signals of the clear water pool and the filter pool, maintaining the water level of the filter material in the filtration area at a preset constant water position.

Intelligent Anti-Laundering Module; Filters based on the clogging status of the filter bed. When the surface of the filter layer is clogged with impurities, the filter layer cannot hold water, and the water level rises to reach the preset backwashing water level, at which point the water level pressure controller is activated to automatically start the backwashing unit.


Modular integrated water purification equipment advantages

Modular layout, easy to operate and manage, suitable for both indoor and outdoor installation.

(2) This integrated unit not only boasts a high removal rate of turbidity but also exhibits certain effectiveness in removing COD, color, colloids, and organic matter.

(3) Capable of withstanding source water turbidity ≤3000 NTU and effluent turbidity ≤1 NTU under conditions of windy rain or unstable silt and debris flow source water.

(4) Suitable for single-unit small treatment capacity of Q=500 m3/d, suitable for large treatment capacity of Q=15,000 m3/d. For a treatment capacity of 5,000 m3/d or more, multiple units can be combined for use. During maintenance, the units can be operated separately to produce water, facilitating maintenance without affecting water production needs.

(5) Wide application scope; such as water supply for industrial and mining enterprises, emergency fire protection, medium to large-scale waterworks, and rural domestic water supply.


Control System Description

1. PLC Control System

The design of this engineering automation system employs a commonly used PLC system in the current market, a high-performance and reliable central control system based on standard and open fieldbus technology, and the concept of full-plant integrated automation. It has been applied and proven effective through practice, boasting advantages such as reliability, maturity, professionalism, practicality, and easy expansion. It can well meet the control needs of various industrial production facilities and lays a solid foundation for achieving full-plant control and management integration as well as process control. It is also equipped with high-performance and reliable automation instruments.

2. Industrial Control Operating System

Based on the process flow and layout of the water purification plant, a control room is set up at the full water purification station. The system control station is located next to the low-voltage distribution room. The management computer at the full water purification station can use Ethernet to connect with computers in other operation control rooms later on, forming an integrated factory computer management system.

    This operation control room is equipped with 1 operator station. Operators in the water treatment operation room complete program start/stop, monitoring and adjustment of normal operation, and handling of abnormal and accident conditions of the water treatment system. In addition to central control, PAC/PAM/next...Sodium ChlorateDisinfection equipment, integrated water purifiers, backwash blowers, backwash pumps, flow meters, level gauges, etc., are for control.

(1) The integrated water purification unit's field control cabinet is controlled by a field PLC cabinet in a one-to-one manner for on-site equipment control. The equipment features pre-installed Ethernet interfaces for start-up/faults, with the on-site control system located in Phase II and the control system in Phase I. After the on-site installation by each equipment supplier is completed, the later installation of network cables to collect the operational status of the on-site control cabinets in Phase II to the Phase I industrial control system will be handled by Party A. The manufacturer provides an on-site PLC control cabinet, which must be capable of local/remote switching via a conversion switch.

(2) The PAC dosing equipment's field control box is controlled by a local PLC control box, using variable-frequency one-to-one control for the dosing pump. It has pre-installed Ethernet interfaces for equipment start-up/failure, with the party A responsible for collecting the operating status of each device via network cables later on. The manufacturer provides the field PLC control box, which must be capable of local/remote switching via a conversion switch.

(3) SubsequentSodium ChlorateThe dosing equipment control cabinet is controlled on-site by a PLC control cabinet, using variable frequency one-to-one control for the dosing pump. The equipment features pre-installed Ethernet interfaces for start-up and fault detection. The party A is responsible for collecting the operating status of each device via network cables in the later stage. The manufacturer provides an on-site PLC control cabinet, which must be capable of on-site/remote switching through a conversion switch.

3. Self-control System Design Principles

(1) High Reliability Principle

Features include self-diagnosis and fault tolerance, with continuous 24/7 operation; equipped with computer system-assisted diagnosis and repair functions; equipped with anti-interference and lightning protection measures; the monitoring system can be downgraded for use, meaning that in the event of a failure or communication interruption at the upper-level machine, the on-site control station can independently perform basic local control.

(2) Practicality Principle

For ease of user operation and system usage, our design principle includes ease of use, simplicity, intuitive interface, and practical functionality. We aim for practicality, elegance, and aesthetics without overcomplicating for the sake of show, ensuring users feel the genuine experience.

Full graphic human-machine interface, allowing users to clearly understand the operation status of various sections in the water plant and the branching details of fault alarm points, enabling quick and accurate operation; vivid graphic control technology, enabling operators to issue various commands or switch screens using hotkeys or the mouse; capable of managing data uniformly as required, such as recording, archiving, statistics, inquiries, and printing.

(3) Professionalism Principle

Products that will not be phased out in the short term should be applied. Prefer international standards and current technology. Of course, as practical industrial control systems, technological maturity is also fully considered.

4. Automation System Requirements

The control system adheres to the principles of "centralized management, decentralized control, and data sharing." It is designed with advanced, reliable, and secure selections, ensuring that instruments, central control units, computers, communication equipment, and other equipment can operate long-term, stably, and efficiently. The control of the entire water purification plant can be achieved through the following three-tiered control layers:

(1) Local Manual Operation: High priority; when the on-site changeover switch is set to "Manual Operation," the control of the industrial control system is overridden. All major on-site equipment can be manually/automatically switched and operated for start/stop manually at the local control cabinet.

(2) Remote Industrial Control Automation: Utilizing the logical control functions of industrial control, it provides automatic control of equipment, as well as interlock and cascade control of associated equipment, and closed-loop control. Equipment in each sub-station's jurisdiction primarily operates under this control method.

(3) Control Room Industrial Control: Remote control of the entire factory's equipment via a human-machine operation interface, achieving macro-control, handling local shutdown accidents and emergencies, and maintaining overall system coordination. The control system features undisturbed switching functionality during manual/automatic/centralized control transitions.

The control system provided in this project is a complete system that meets the buyer's technical specifications. Upon correctly connecting the signal cables from the site and the main power lines to our supplied system, the system operates stably, reliably, and safely, performing the pre-determined functions such as monitoring, operation, management, automatic control, and interlock protection.

5. Industrial Control Room

The control room is equipped with an industrial control computer for operator management, which analyzes, processes, and stores information on various process parameters, electrical parameters, and the operating status of major equipment in the water treatment plant. It generates trend curves for different process parameters, allowing for simple keyboard operations to configure system functions, modify and set control parameters online, issue commands to lower-level machines, and provide a直观 dynamic flowchart of the entire plant. It also displays detailed process flowcharts for each section with dynamic parameter and trend curve displays. It automatically generates various reports and allows for the display and printing of records. The alarm system sounds and lights up at the central control room for various faults of on-site equipment and can categorize and print the faults.

(1) Real-time dynamic graphic data display

The dynamic real-time display of the water treatment process, the operating status of major process equipment, level control and distribution equipment, and real-time data such as process and electrical parameters for each stage on a computer monitor allows managers to grasp the current water treatment operation and monitor at multiple levels from a general layout to detailed diagrams.

(2) The overall structural form of the dynamic graphics is a hierarchical unfolding style, with the image including

System Monitoring Overview

Dynamic Process Flow General Diagram

Power Distribution System Diagram

  ☆ Status Diagram of Key Equipment Parameters

(3) Control

Operators issue start/stop/shutdown commands via keyboard or mouse on the computer. The screen should display an operation sequence diagram, marked with different colors to indicate the current execution steps. Upon receiving the commands, the control system executes them correctly based on the on-site conditions and sends back response signals to the operator station. All operational events are automatically logged into the "Event Log."

(4) The supplied Uninterruptible Power Supply (UPS) features an automatic transfer function, with the backup power capacity designed for a 30-minute operation.

(5) Control System: Operators issue start/stop/shutdown commands via the keyboard or mouse on the main control computer. The screen should display an operation sequence diagram, marked with different colors for the current execution steps. After receiving the command, the PLC control system executes it correctly based on the on-site conditions and provides feedback signals to the operator station. All operation events are automatically logged into the "Event Log."

6. Intelligent System Composition

7. Features of the Intelligent System

8. Intelligent System Framework

V. Overall Processing Technology System

1. Processing Technology


2. Process Overview

3. Process Advantages

Section 6: Performance Advantages of FV Series Modular Integrated Water Purification Equipment