Tetran Inverter to help energy saving and environmental protection-negative pressure waste gas equipment
一． Industry Overview
In the production process of chemical and metallurgical products, a large number of harmful gases are produced, which cause damage to workers' bodies and pollution to the environment, and are not easy to collect.In order to reduce the waste of resources, prevent pollution of the environment, and improve product quality while protecting the health of workers.For these processes, absorption and purification equipment - negative pressure exhaust gas treatment systems are required.
二． Craft description and control requirements
1、Craft description
The negative pressure fan is used to form negative pressure in the pipeline, and the exhaust gas is collected and sent to the exhaust gas treatment tank through the air dampers, branch pipes and main ducts for chemical reaction treatment to remove harmful gases, etc. The treated gas is transported to the testing device for testing, and is discharged if qualified, and is sent to the exhaust gas treatment tank again if unqualified until qualified.
The high-powered negative pressure fan plays a key role in the entire waste gas collection and transportation process, with a large fan size and mechanical inertia.It requires the dragging equipment to meet the characteristics of free speed regulation and effectively overcome the problems of stall overpressure, stall overcurrent, etc., which easily occur due to inertia in the process of fan shutdown.
三．Electrical control diagram
四．Parameter Setting
|
Parameter |
Parameter Description |
Set value |
Remarks |
|
F0.01 |
Terminal start |
1 |
|
|
F0.02 |
Analog speed control |
2 |
|
|
F4.01 |
X1 terminal start-up |
1 |
|
|
F6.00 |
Start-up method |
1 |
|
|
F6.01 |
Maximum speed tracking |
2 |
|
|
F6.02 |
Rotational speed tracking fast and slow |
60 |
|
|
F6.07 |
Parking method |
1 |
Free Parking |
五． Program Features
1.The T600 inverter has digital and analog input functions, and external start/stop buttons and potentiometers can be connected to control the inverter to meet system requirements.
2.The T600 inverter adopts V/F control mode to adjust the motor rotate speed instead of adjusting the baffle and valve, then it achieves the purpose of energy saving, and the power saving rate can reach 40%.
3.The T600 inverter adopts the stopping method of free stopping and the starting method of rotate speed tracking, which can make the fan start and stop switching in a short time, and the whole process is smoother and trouble-free.
六． Field Applications
