Which is a good natural ventilation oven

K-WKL-BNatural ventilation oven(New model with tempered glass observation windows both inside and outside, totaling3Layer, with lighting)

1、 Working principle

Commonly used for hot air aging testing of rubber products, cable and optical cable insulation and sheath, and other materials. The temperature control adopts digital display and PID automatic adjustment temperature controller, which can set the working temperature arbitrarily and automatically maintain a constant temperature, allowing natural convection of hot air and promoting rapid aging of the sample under constant temperature conditions. The host structure, instruments, and materials were designed after detailed research on the airflow and temperature inside the box, and have the advantages of sensitive temperature control, good temperature uniformity, large effective space, and stable performance.Natural ventilation ovenThe reference standards are as follows:

GB/T 2951.12-2008 General Test Methods for Insulation and Sheath Materials of Cables and Optical Cables Part 12: Thermal Aging Test Method

JB/T 4278.6-2011 Rubber Plastic Wire and Cable Testing Instruments and Equipment Calibration Methods Part 6: Natural Ventilation Thermal Aging Test Chamber

JB/T 7444-94 Air Thermal Aging Test Chamber

MT 818.1-2009 Coal Mine Cables Part 1: General Provisions for Mobile Flexible Cables

GB/T 2951.31-2008 General Test Methods for Insulation and Sheath Materials of Cables and Optical Cables Part 31: Special Test Methods for Polyvinyl Chloride Mixtures - High Temperature Pressure Test - Crack Resistance Test

2、 Main technical parameters

1. Effective size of studio (L * W * H): 450 * 450 * 500mm

(Inner box 550 * 450 * 550mm) Other specifications need to be customized

2. Studio material: SUS304 stretch stainless steel 1.2mm outer box electrostatic spraying

3. Insulation material: high-quality insulation asbestos

4. Temperature control range: normal temperature 25 ℃~300 ℃

(Heating up to 300 ℃ for about 40 minutes at room temperature)

5. Temperature fluctuation: ± 0.5 ℃

6. Temperature uniformity: ± 2.0%

According to the JB/T4278.6 standard, the workspace measurement can reach ± 2 ℃

7. Wind speed: 0.5m/s

8. Ventilation rate: 8-20 times/h

9. Ventilation method: natural ventilation

10. Circulation method: Natural ventilation circulation (bottom intake, top exhaust)

5 upper air outlets (adjustable) and 1 lower air inlet (non adjustable)

11. Power supply: 220V ± 20V 50Hz ± 0.5Hz

12. Power: 3 kW

13. Self weight approximately: 160kg

3、 Auxiliary structure

1. Sealing: Double layer high-temperature and high tension sealing strips are used between the door and the box body

To ensure the airtightness of the testing area
2. Door handle: Adopting a non reactive door handle for easier operation

3. The observation window adopts multi-layer insulated tempered glass (clear observation of the test process)

4、 Installation site

1. The ground around the equipment is flat and there is no strong vibration

2. There is no strong electromagnetic field around the equipment

3. There are no flammable, explosive, corrosive substances or dust around the equipment

5、 Installation requirements

1. The space on both sides of the device needs to be kept at least 60cm

2. The front of the device needs to maintain a space of no less than 120cm

3. The tilt angle of the equipment cannot exceed 15 °

six、Main configuration list

7、 Structural characteristics

1. The inner box is made of stainless steel plate, which has strong anti rust ability.

2. The space between the box and the workspace is filled with ultra-fine glass wool insulation material, which has good insulation function, effectively ensuring stable and accurate temperature inside the box and its impact on the usage environment.

3. The inner door of the box is made of tempered glass structure, which allows clear observation of the heated items inside the box.

4Natural ventilation ovenThere is a reasonable hot air circulation channel designed inside the box, which makes the temperature distribution inside the box more uniform and the temperature rise faster; And equipped with adjustable air vents to regulate the amount of air entering and leaving the box. The air intake is located below.

5. The temperature control is manufactured using intelligent digital technology, with industrial PID self-tuning and four digit dual row digital display functions. It has high temperature control accuracy, strong anti-interference ability, and easy operation.

8、 Installation and debugging

1. Be careful not to exert force on the glass or collide with the box during transportation.

2. After the equipment lands, it should be placed steadily. If the ground is uneven, it should be corrected.

3. Please do not use the instrument in places with direct sunlight or high temperature and humidity.

4. The equipment should be kept away from electromagnetic interference sources and the grounding wire of the equipment should be effectively grounded.

5. When the equipment is running normally, the placement of the contents inside the box should not affect air circulation to ensure uniform temperature inside the box.

6Natural ventilation ovenThe power supply is AC 220V 50HZ, and a three core socket of 16A or above must be used with a reliable grounding wire. Two core sockets are not allowed to be used without authorization.

7. Do not place the power cord close to the back, and do not let instruments or other objects press on the power cord to avoid damaging it.

8. Before powering on the goods upon arrival, it is necessary to check for any short circuits or open circuits in the circuit. Check if there are any loose fasteners or other issues.