Clean sampling vehicle (also known as clean sampling vehicle)

Clean sampling vehicle (also known as clean sampling vehicle) is a vertical unidirectional flow local air purification equipment that can provide a local clean environment. It can flexibly flow in the workshop and make up for fixed laminar flow hoods, air purifiers, etc. The cleanliness requirements of certain spaces that the equipment cannot meet.

The clean sampling truck is an ideal mobile device for sampling and cargo delivery in the medical and health, products, food, electronics and other industries, and it is also an essential equipment stipulated in Article 22 of GMP. According to the requirements of GMP standards, the sampling vehicles produced by KLCFILTER reach 10,000-class cleanliness (up to a hundred), and the electrical components used at the same time meet the requirements of GB1497-85 (electric safety standards) and GB-191 (packaging standards). The structure of the clean sampling vehicle is composed of a stainless steel or plastic-sprayed steel box body. The body is composed of a pre-filter, a blower unit, a high-efficiency filter, a lighting unit, a diffuser, a combined electrical appliance, and a universal caster. The entire equipment has a compact structure and is operated Convenience.

Working principle of clean sampling vehicle:
The working principle of the clean sampling vehicle adopts a vertical laminar air flow. The variable-speed centrifugal fan presses the air filtered by the pre-filter in the negative pressure box into the static pressure box, and then passes through the high efficiency filter for secondary filtration. The clean air flow blown from the air outlet surface of the Rfilter high efficiency filter will take away dust particles and particles when passing through the work area at a certain uniform cross-sectional wind speed, thus forming a dust-free and sterile working environment.
Structural features of the clean sampling vehicle:

1 The upper half of the clean sampling vehicle is the air supply static pressure box, the lower half is the clean area, and the box body is stainless steel. The air supply body is equipped with a filter made of ultra-fine glass fiber filter material, a multi-wing forward low-noise variable speed centrifugal fan, and an illuminating fluorescent lamp and an ultraviolet germicidal lamp are installed on the diffuser on the air outlet surface. In order to facilitate the work and observation of the staff, the baffles on both sides of the operation surface of the clean work area are made of transparent glass, and the front and rear windshields are made of transparent environmental protection material plastic.
2 The clean sampling vehicle uses a variable speed fan system with adjustable air volume. By adjusting the input voltage of the variable-speed fan, the working condition of the fan is changed, so that the average wind speed of the purification working area is always kept within the ideal range, which can effectively extend the service life of the main components of the clean sampling vehicle (the high efficiency air filter) The operating cost of the clean sampling vehicle.
3 The ultraviolet germicidal lamp used in the clean sampling vehicle can radiate strong 2573A short-wave ultraviolet rays. It not only kills microscopic active cells, but also kills heat-resistant spores (such as Bacillus subtilis spores) and other bacterial spores. In addition, bacteriophages and viruses can quickly be destroyed under the action of ultraviolet light. Installation and use conditions of clean sampling vehicle

1 The storage place of the clean sampling vehicle should be far away from the seismic source, ventilated and dry, and there should be no more than 3,500 dust particles with a particle size of ≥0.5μm per liter of air (equivalent to class 100,000 in the U.S. Federal Standard 209B).
2 The clean sampling vehicle has adjusted the wind speed to a good state (that is, the average wind speed in the purification work area at this time is 0.32m/s～0.48m/s)
3 After the clean sampling vehicle is installed, the average wind speed in the purification work area can be measured with a speedometer. The wind speed is controlled at 0.32m/s～0.48m/s (regulated voltage)
Operating procedures and precautions of clean sampling vehicle

1 When using a clean sampling vehicle, the ultraviolet germicidal lamp should be turned on 50 minutes in advance to deal with the microscopic accumulation on the surface of the clean sampling vehicle in the purification work area; after 30 minutes, the germicidal lamp should be turned off and the air blower should be started.
2 For newly installed or unused clean sampling vehicles for a long time, the clean sampling vehicle and surrounding environment must be cleaned before work, first use ultra-clean vacuum cleaners or tools that do not produce fibers, and clean carefully, and then use drug sterilization or ultraviolet rays. Sterilization method for sterilization.

3 It is strictly forbidden to store unnecessary items in the purification work area to keep the clean air flow pattern undisturbed.
4 Try to avoid actions that obviously disturb the air flow pattern in the purification work area.
5 Regularly (usually once a month) use an anemometer to measure the average wind speed in the work area. If it is found that the technical indicators are not met, the regulator handle should be adjusted and the fan input voltage should be changed to keep the clean sampling vehicle in good working condition.
6 The operating temperature of the clean sampling vehicle should not exceed 50 degrees Celsius. Repair and maintenance of the clean sampling vehicle