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Triethylene Glycol Cleaning Furnace from China Suppliers - Efficient Factory Solutions for PET Cleaning
Materials of Device
1
Tank Body & Lid
Tank body and furnace lid using SUS304 & 6mm board to produce, do pressure testing, leakage check after forming.
2
Jacket & Insulation
The jacket made of 5mm heat-resisting stainless steel plate, by GB-150 steel container standard making; 2mm stainless steel for shell; between the outer panel and cylinder filled with high-quality aluminum silicate cotton insulation, all appearance welds are kerosene leakage test, and the protection plate on the bottom of the furnace mouth with thickness beyond the insulation layer in the fan-shaped. In order to prevent the basket hanging out the TEG medium drops into the cotton insulation caused security accident.
3
Contact Components
Contact with TEG flanges and steel pipe, the materials are heat-resistant stainless steel.
4
Level Gauge
The use of stainless steel magnetic coupling plate type level gauge, and with the level lower limit alarm.
5
Electric Heater
Stainless steel heating pipe, heating power 60kW, composed of 33 “U” type stainless steel electric heating element welded flange directly into the furnace in the TEG medium heating, each power 2kw, the actual use of 30, the other three spare, the electric heating wire is made of Ni20Cr80 alloy (Shanghai Alloy factory produced) the service life of the heater is not less than three years.
6
Hanging Basket
Stainless steel material, 7 layers cleaning spinnerets. Heat-resistant stainless steel.
7
Condenser
Stainless steel material, shell and tube type structure, condensing area is 3.5m2.
8
Pneumatic Components
Cylinder, manual valve, steam source triple.
9
Insulation Cotton
High – temperature aluminum silicate cotton.
Control System
According to the working principle and requirements of TEG cleaning furnace, the system utilizes dual-instrument control to manage electric heater temperature and medium temperature, ensuring normal operation and fault self-protection.
Dual-Instrument Safety Interlock: One set controls heater temperature with anti-dry protection; the other controls TEG medium temperature. Over-temperature cuts off main power and triggers sound/light alarms.
PID Auto-Tuning: Supports manual and auto-tuning PID to optimize parameters, driving a solid-state relay with automatic cooling and self-diagnosis.
Double-Cut Function: Incorporates dual time and temperature controls to guarantee superior cleaning performance.
Interlock Protection: Heating is disabled if TEG is below the set level, heater junction box lacks pressure, or if condenser water pressure is too low.
※ The cleaning process ends, the system has an automatic shutdown function.
Frequently Asked Questions (FAQ)
Q
What materials are used in the construction of the tank body and jacket?
The tank body and furnace lid are made of SUS304 with a 6mm board, pressure and leakage tested. The jacket is made of a 5mm heat-resisting stainless steel plate complying with GB-150 standards, with a 2mm stainless steel shell.
Q
What are the specifications of the electric heater?
The electric heater has a 60kW heating power, consisting of 33 "U" type stainless steel heating elements (30 in active use, 3 as spares). The heating wire is made of Ni20Cr80 alloy, ensuring a service life of at least three years.
Q
How does the control system handle over-temperature issues?
The system features a safety interlock with two sets of instruments. If an over-temperature condition occurs, the system automatically cuts off the main heating power and triggers a sound and light alarm.
Q
What safety interlocks protect the heater and level gauge?
The heating element will not work if the TEG medium drops below the set level. Additionally, the system prevents heating if the junction box lacks pressure or if the condenser water pressure is too low.
Q
What type of condenser is used in the device?
The device is equipped with a shell and tube type condenser made of stainless steel, featuring a condensing area of 3.5m².
Q
Does the system require manual shutdown after the cleaning process?
No, the control system is designed with an automatic shutdown function that triggers once the cleaning process is completed.