Three-Layer Single-Door Energy-Saving Vacuum Drying Oven

 

Series: Standard Vacuum Oven Series

Applicable Products: Batteries, battery cells, electrode sheets

Internal Dimensions: 350(H) × 850(W) × 800(D) mm × 3 layers

External Dimensions: 2000(H) × 1270(W) × 1150(D) mm

1. Basic Structure

Composed of 5 parts:

1. Frame structure

2. Inner chamber

3. Vacuum and nitrogen system

4. Electrical control system

5. External circulation system

2. Working Principle

Each unit can work continuously in a cycle. Basic process: open the door to place battery cells or electrode sheets into the oven, then set heating, vacuum, and nitrogen timing. The system automatically executes heating and timed ventilation based on preset parameters to complete the baking process.

3. Configuration

3.1. Inner Chamber: Fabricated from 3.0 mm stainless steel, with iron square tubing for reinforcement.

3.2. Frame: Manufactured from 1.5 mm high-quality cold-rolled plate; double-layer insulation incorporating aluminum silicate, aluminum foil cotton, and sound insulation cotton.

3.3. Hot Air System: Each layer is composed of a fan, heating box, air duct, and piping to ensure temperature uniformity.

3.4. Control System: Encompasses PLC, touchscreen, pressure sensor, high-vacuum baffle valve, solid-state relays, temperature controller, and solenoid valve group.

3.5. Hardware: Comprises door, rear cover, vacuum pipes, and other stamped components.

4. Machine Features

4.1. Door Type: Single-opening; elastic double-layer glass door; three-layer pressure monitoring fitted with overpressure protection.

4.2. Inner Chamber Seal: Molded silicone O-ring, resistant to high temperatures and corrosion.

4.3. Working Principle: External circulation of surrounding hot air. Double insulation limits outer temperature to within +20°C of the ambient.

4.4. Heating Structure: O-type external air circulation, with left air outlet and right air intake to secure temperature uniformity.

4.5. High Vacuum Pneumatic Baffle Valve: Three-layer isolation, with independent control.

4.6. Touchscreen Display: Fully automatic cycle control, reverting to vacuum pressure holding upon completion; digital display of safety temperature.

4.7. Multi-level Overtemperature Protection: Effectively curbs temperature runaway and improves protection precision.

4.8. Touchscreen Central Operation: Simple and dependable to operate. PLC program control guarantees stable performance.

4.9. Independent Layer Control: Each layer allows setting of total baking time, cycle time, vacuum time, and drying time. After parameter configuration, pressing the auto button initiates the baking cycle. Automatic shutdown occurs once baking finishes. An over-temperature alarm is activated, with a red light and message display.

4.10. Nitrogen Charging Control: Charging stops automatically at the setpoint ranging from -0.1 MPa to -0.02 MPa.

4.11. Fault Alarms: On-screen fault warnings and cause explanations during normal operation.

4.12. Vacuum Pipe: Resistant to corrosion.

4.13. Program Interlock: Prevents cross-contamination among layers.

5. Technical Specifications

6. Electrical Configuration

7. Installation Requirements

7.1 Installation Distance: Minimum 1500 mm in front; ≥500 mm on sides and rear. User must provide independent power switch and external wiring.

7.2 Installation Site Conditions (provided by buyer):

l 7.2.1 Power: 3-phase 4-wire AC 380±38V, 50±1Hz

l 7.2.2 Vacuum Source: -0.1 MPa, DN20 hose barb

l 7.2.3 Nitrogen Source: 0.1–0.2 MPa, Φ12 gas tube

l 7.2.4 Compressed Air: 0.4–0.6 MPa, Φ8 gas tube

7.4 Power Consumption: ≤12 kWh max

7.5 Environmental Requirements:

l 7.5.1 Temperature: -5~35°C, Humidity: ≤40%

l 7.5.2 No flammable/explosive gas, liquid, or solids nearby

l 7.5.3 Prohibited to bake flammable, combustible, or explosive materials inside the oven