High temperature industrial camera for RH furnace is a special closed-circuit TV equipment using sealed high-temperature environment. It is an industrial TV system specially used to monitor the operation of the sealed furnace. It is an important equipment for monitoring and observing the working conditions of the furnace. It plays an extremely important role in improving output, reducing energy consumption and implementing safe production. It not only ensures production safety and improves product quality, but also improves working environment and reduces labor intensity, and is also convenient for centralized scheduling and automation of production process. Names: RH vacuum tank high temperature camera, vacuum refining furnace high temperature camera, RH vacuum refining furnace high temperature television.

The RH vacuum tank high-temperature camera adopts a unique cooling and purging protection method. The special high-temperature camera is penetrated into the high-temperature vacuum tank to monitor the vacuum tank heating, vacuum tank cooling steel, molten steel lifting cycle, molten steel with aluminum and oxygen blowing production processes such as heating, molten steel oxygen blowing decarburization and alloy input. The high-temperature camera has high temperature resistance and good stability. The front end of the lens is made of sapphire glass, which can effectively prevent molten steel from splashing. The structure is exquisite and strong, the image is clear and stable, and the installation and maintenance are convenient. It has been widely used in Baosteel and other steel mills.

The camera probe is the core component of the system, which is composed of a special high-temperature-resistant camera, a sapphire high-temperature-resistant needle lens, and a camera protective case.

1. Special high temperature resistant camera

Among the series products are digital signal processors that add CCD with infrared characteristics. It can automatically switch from color monitoring mode during the day to black and white monitoring mode at night, truly realizing 24-hour monitoring.

2. Sapphire high temperature resistant lens

The equipment adopts sapphire front end, which can effectively prevent molten steel from splashing and high temperature radiation. It is designed to use relay objective lens to image twice, increase the imaging distance of the imager, and greatly reduce the influence of radiant heat on the camera. The imager adopts manual adjustment to ensure that it can capture the clear operation of the workpiece in the furnace. At the same time, the use of this imager can also reduce the opening size of the kiln.

Photometric method: Through the setting of the ALC potentiometer, the input signal can be detected at any position between the average value (AV) and the peak value (PK).

Diameter of light inlet hole: Φ1.0 mm

Target distance: 0.5 m~∞ (fixed focus)

Light barrier index: F1.4-C

3. High temperature industrial TV water cooling sheath module

The high temperature protective sleeve is a device used to protect and cool the high temperature imager and camera. The multi-layer cylinder made of high temperature resistant stainless steel and special alloy materials, the purging gas is connected to the air inlet of the high temperature protective sleeve to purge and cool the lens and camera. The outer water-cooled protective sleeve circulates water out and in to protect the inner air-cooled protective sleeve. The spherical design can adjust the viewing position of the camera.

4. Electrical control device

The electric control box adopts explosion-proof electric box body, which can be used normally in flammable and explosive places. The protection level reaches IP68 level, which can protect electrical equipment from damage with good dustproof and waterproof. The power module used in the box can be used normally between AC 90-260V, effectively avoiding adverse effects such as large voltage fluctuations and strong interference in steel mills.