1. Equipment Introduction
Introduction to the Production Line:
This production line is an integrated energy-saving production line for degreasing and drying of air-conditioning evaporators, condenser fins, and long U-tubes, and automatic brazing of small U-tubes, integrating degreasing, brazing, oil and gas, and heat recycling. The products are placed vertically on the conveyor line and first pass through the degreasing furnace for degreasing and drying, and then continuously enter the brazing furnace for automatic brazing of small U-tubes, realizing online production.
Production Line Structure:
The air-conditioning heat exchanger degreasing production line includes a degreasing furnace, a catalytic combustion chamber, a heat transfer enhancement chamber, a natural gas control unit, a high-pressure top blowing, a degreasing side blowing, a drying side blowing, a bottom blowing mechanism, and an automatic lifting guardrail. The degreasing furnace is connected to a hot air circulation system through a pipeline, a small U-tube automatic brazing furnace, and a conveyor line that is sequentially arranged at the bottom of the degreasing furnace and the brazing furnace.
Production process steps:
Manually put the product on the line from the front end of the degreasing furnace → the product passes through the degreasing furnace at a uniform speed for automatic degreasing → automatic drying → manually insert the small U tube into the product online at the front end of the brazing furnace → the product passes through the brazing furnace at a uniform speed for automatic welding of the small U tube → manually assemble and weld other accessories of the product coming out of the brazing furnace → manually take the product off the line from the end of the conveyor line.
Features of the production line:
- The use of a unified communication method is convenient for use after installation and after-sales maintenance, and the system improvement and training services are more convenient;
- The components use a unified brand configuration and the installation method is very consistent, which is convenient for the maintenance of the equipment after long-term use;
- The hot air of the degreasing furnace adopts heat transfer enhancement and high-speed internal circulation, which can realize the thermal energy recycling of the degreasing furnace and achieve efficient utilization of energy to achieve energy saving;
- After the volatile oil evaporates, part of it enters the combustion chamber with the circulating air for combustion, and the heat generated by its combustion is used for degreasing and drying, thereby reducing the energy consumption of the burner. At the same time, since part of the volatile oil is burned, the oil content in the exhaust gas discharged by the degreasing furnace is reduced, making the subsequent processing easier.
2. Degreasing Process Part
Equipment dimensions, layout:
Schematic diagram of dimensions and layout
(schematic design, size and color are for reference only)
Equipment functions and features:
Production line function mechanism
- This production line is a degreasing and drying production line for air-conditioning evaporator/condenser fins and long U-tubes. The products are placed vertically on the conveyor line and pass through the degreasing area and drying area. It adopts gas combustion heating, has catalytic combustion and heat recycling functional mechanisms, and various process processes are interrelated. The internal and external double circulation recycles the waste oil and gas and heat energy, thereby realizing efficient energy utilization and achieving safety purposes.
- Air-conditioning heat exchanger degreasing production line, including a degreasing furnace, a catalytic combustion chamber, a heat transfer enhancement chamber, a natural gas control unit, a high-pressure top blowing, a pre-purge, a side blowing, a bottom blowing mechanism, and a conveyor line and an automatic lifting guardrail that are sequentially arranged at the bottom of the degreasing furnace. The degreasing furnace is connected to a hot air circulation system through a pipeline.
Process characteristics
Degreasing waste gas (oil, water, steam, impurities) circulating catalytic combustion system: The hot air of the degreasing furnace adopts heat transfer enhancement and high-speed internal circulation, which can realize the secondary utilization of the heat energy of the degreasing furnace and achieve efficient utilization of energy to achieve a safe effect; After the volatile oil evaporates, part of it enters the combustion chamber with the circulating air for combustion, and the heat generated by its combustion is used for degreasing and drying, thereby reducing the energy consumption of the burner. At the same time, since part of the volatile oil is burned, the oil content in the waste gas discharged by the degreasing furnace is reduced, making the subsequent process easier to handle;
3. Brazing Machine Part
Schematic diagram of equipment appearance:
Scope of use
Automatic welding of short U-tubes of heat exchangers, products are 1-4 rows (products with the folded edge of the end plate lower than the cup mouth of the long U-tube). Note: For products with more than 3 rows and small U-tubes blocking each other or the end plate, some welding points may need to be repaired.
Main structure of the equipment
Main part
- Machine body
- Lifting mechanism
- Fire grate adjustment mechanism
- Preheating gun
- Welding gun
- Reducing flame spray gun
- Workpiece cooling mechanism
- Smoke hood
- Gun support plate
- Water cooling system
- The nozzle adjust system
Gas circuit part
- Gas circuit box
- Gas circuit
- Gas controller
- Gas proportional mixing system
- Gas line nitrogen cleaning system;
Conveying part
- Conveying chain
Electric control part
- PLC control cabit
Control system
Safety Assurance
- Gas circuit control system
- Pressure alarm system
- Nitrogen fire extinguishing
- Power failure protection
- Emergency stop button
- Gas leak alarm system
- Forced exhaust system
- Safety cover
