DYLY-GP water supply and drainage equipment installation and control experimental device

This device is specially developed for civil engineering and water conservancy related majors such as water supply and dr*nage engineering, building electrical , building intelligent equipment, construction equipment, municipal engineering, etc. opened in vocational colleges. The device adopts the engineering object system design tr*ning model according to the characteristics of water supply and dr*nage engineering systems in residential and industrial sites in the building industry . Through the operation tr*ning of this device, students can be assessed on their comprehensive ability to master the installation and control of water supply and dr*nage equipment, such as pipe cutting and connection, pipeline installation, equipment installation, electrical installation, equipment wiring, programming control, troubleshooting, etc.; at the same time, it can cultivate students' teamwork ability, work efficiency, quality awareness, safety awareness, professional ethics and professional accomplishment.

2. System structure and composition

The overall water supply and dr*nage object model is designed with a st*nless steel frame. The m*n water supply and dr*nage pipeline equipment is installed on the steel frame base and has an open feature. It consists of five parts: domestic water supply system, fire water supply system, hot water supply system, dr*nage system and control system.

The domestic water supply system m*nly consists of water supply tank, water supply pump, water supply pipeline, pressure transmitter, pulse water meter, faucet and shower head, etc. The pipeline is designed with st*nless steel composite pipe, which can be cut, installed and tested for water flow. The control system can realize the variable frequency constant pressure water supply function of the domestic water supply system, and realize the functions of single pump variable frequency control or double pump switching control, etc. The pulse water meter can measure the water consumption.

The fire water supply system m*nly consists of water supply tank, sprinkler pump, pressure regulating tank, wet alarm valve, pressure switch, water flow indicator, fire water supply pipeline, closed sprinkler head, etc. The pipeline is designed with galvanized pipe, which can be cut, threaded, installed and tested for water flow, and the sprinkler fire extinguishing function can be realized through the control system.

The hot water supply system m*nly consists of electric heating boilers, hot water supply pipes, faucets and shower heads, etc. The pipeline is designed with PPR pipes, which can be cut, welded, installed and tested for water flow, and the boiler can be temperature-controlled.

The dr*nage system m*nly consists of sewage tank, liquid level sensor , dr*nage pump, dr*nage pipe and water treatment unit. The dr*nage pipeline is m*nly designed with UPVC pipe, which can be cut, bonded, installed and tested for water flow. Combined with the control system, it can realize the functions of sewage tank water level detection and dr*nage pump start and stop control.

The automatic control system for water supply and dr*nage m*nly consists of electrical control cabinet, touch screen, operation switch, working status indicator light, PLC controller, frequency converter, low voltage electrical, water pump, water meter, sensor (float level gauge, pressure switch, water flow indicator, signal butterfly valve, pressure transmitter), configuration monitoring software, etc. The control system can realize the automatic control function of the water supply and dr*nage system.

The whole room is equipped with a set of teaching courseware: the system has at least 13 processor-related experimental projects built in, and supports instructions exported by programming software. In the experiment, the operation of the processor can be observed and the run/stop switch needs to be used when running or stopping. There are also four simulation status indicators on the panel, including power, operation status, internal power, and error, to simulate the operation status. The imported programming instructions can also be viewed on the panel, and the function of repeated loading of programs is supported. Rectangles, circles, rounded rectangles, str*ght lines, str*ght lines with arrows, and text can be drawn. At the same time, operations such as clearing and deleting can be performed. It can connect, delete, clear, restore, and select wire specifications between electrical components of logic circuits. It has a built-in simulated VFD, which can set VFD parameters and provide professional project task teaching content. The task content includes: writing workflow diagrams, drawing circuit wiring drawings, circuit wiring, writing programs, fault diagnosis, etc. Controller three-dimensional simulation teaching module: This courseware can be programmed through the built-in controller program programming interface and can be written into the virtual controller to control 3D simulation models. It can simulate and control no less than 20 3D simulation models. It can also monitor the status of the virtual controller and reset the component when it is stuck. It has a step-by-step teaching function, teaching from easy to difficult.

Electricity safety and electric shock first *d simulation teaching software: The software uses a combination of two-dimensional and three-dimensional virtual images to teach students electricity safety and first *d methods. The software has single-phase electric shock, two-phase electric shock, step electric shock, low-voltage electric shock first *d, high-voltage electric shock first *d, artificial respiration rescue method, hand-holding breathing rescue method, chest compression rescue method and other principle explanations and teaching. Single-phase electric shock is divided into m*ntenance of live wire disconnection, m*ntenance of socket electric shock, outdoor electric shock and other principle demonstrations. Low-voltage electric shock and high-voltage electric shock teaching m*nly expl*n and demonstrate to students how to rescue people who are in low-voltage electric shock or high-voltage electric shock. Artificial respiration rescue method, hand-holding breathing rescue method, chest compression rescue method are displayed using 3D virtual simulation technology. After rendering and polishing, the model looks the same as the real part and the picture is realistic. Through practical tr*ning, students can be educated on safe use of electricity in the tr*ning room, improve their safety awareness, learn some self-rescue methods, and take cert*n safety measures to protect themselves when encountering danger. They can also be familiar with the causes of various electrical accidents and practical operational measures for handling electrical accidents, thereby reducing the occurrence of electrical accidents.

Teacher teaching platform: The system supports importing 3DS, STL and nxm format files saved by this platform. Supports saving the project files in the system as a separate file (nxm format), and supports secondary editing of the file through software, and the file can support PPT control playback. Supports setting 6 view axis views, front view, back view, left view, right view and top view. When setting, the system provides 3 axes (X, Y and Z axis) and 4 angles (0°, 90°, 180° and 270°) for each axis. Supports model action setting, and the action types are divided into 6 types (once, repeatedly, continuously, state, replacement and positioning). Supports lens animation setting, with unlimited number of lenses, and supports setting the switching time of each lens; there are 2 other auxiliary, one is test playback, and the other is to delete all. Supports timeline setting, which is used to connect the actions in "action setting" and "lens animation setting", and supports setting the start time and running time of each action. At the same time, it can also reset all actions, play the timeline and delete all actions. Model animation files can be loaded into the courseware through the platform's supporting controls for 3D animation teaching, achieving full 3D interaction in the courseware.

3. M*n technical performance

1. Working power supply: three-phase four-wire AC380V±10% 50Hz;

2. Dimensions of water supply and dr*nage model: 2.25m×0.79m×1.9m (length×width×height);

Dimensions of electrical control cabinet: 0.8m×0.6m×1.8m (length×width×height);

3. Water supply and dr*nage model material: st*nless steel;

4. Power consumption of the whole machine: <4.5KVA;

5. The bottom of the device is equipped with casters with brakes to facilitate the movement and fixation of the device;

6. Safety protection measures: It has grounding protection, leakage overload protection, and misoperation protection functions; the safety conforms to the relevant national standards, and all materials conform to environmental protection standards.

4. Professional competence that can be examined through project implementation

1. Draw the system completion drawing and control electrical schematic diagram

2. Pipe processing and connection

Cutting, threading, welding and connecting of galvanized pipes, st*nless steel composite pipes, PPR and UPVC pipes.

3. Installation of accessories and components

Complete the installation of pipe fittings in domestic water supply system, fire water supply system, hot water supply system and dr*nage system; complete the installation of water pumps, pressure transmitters, water meters, float level gauges, signal butterfly valves, wet alarm valve groups, water flow indicators, closed sprinklers, terminal water testing devices, faucets, showers and other plumbing devices.

4. Pipeline pressure test and water flow test

5. Electrical design, installation and wiring

Installation and wiring of water pumps, distribution cabinets, controllers, command components, and operating components

6. Control program design and debugging

(1) Frequency conversion control program design and debugging

(2) Meter reading and billing program design

(3) Design of sprinkler fire extinguishing control program

(4) Design of water supply and dr*nage monitoring program

(5) Configuration monitoring system design

5. Basic Configuration

1. Equipment framework

2. Basic configuration of electrical control cabinet

3. Pipes, accessories and supporting tools