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Purification equipment engineering is one of the principles of ultra-clean bench introduction
Purification equipment engineering is one of the principles of ultra-clean bench introductionIn many of our current production enterprises, a variety of air purification equipment is indispensable, and we would like to introduce you today one of them - the principle of ultra-clean bench, from all aspects of this equipment for you to make an introduction to hurry up and take a look!First, the components of the equipment The ultra-clean bench is usually composed of a blower, filters, operating tables, ultraviolet lamps and lights, and other parts of the operation of the fan through the internal small electric motor, so that the air through a pre-filter, in which most of the dust is filtered out, and then through a high-efficiency filter, in which more than 0.3 of the particles of the impurities filtered out, and then the pure air without bacteria, fungi! With a flow rate of 24-30m per minute, the air is blown over the operating surface of the worktable. Second, the working environment of the equipment Ultra-clean workbench is generally used in the form of horizontal or vertical laminar airflow, in which the variable-phase centrifugal fan will be a negative pressure box after the coarse filter pre-filtration, and then send the air into the static pressure box, through the high-efficiency filters for the second filtration. The clean air blowing out from the outlet side of the high-efficiency filter creates a continuous laminar flow of dust-free, sterile, and ultra-clean air, which is also known as "high-efficiency special air". Then the air passes through the working area at a uniform cross-section speed, which can remove dust, fungi, and bacterial clusters larger than 0.35m in the working area, thus forming a dust-free and bacteria-free working environment. Ultra-clean air flow rate of 24 - 30m/min, has been enough to prevent air pollution, such a flow rate will not prevent the use of alcohol lamps or Bunsen burns on the machinery of the disinfection, at the same time, the side of the workbench is equipped with ultraviolet germicidal lamps, can be eliminated from the operation of the area of the table surface of microorganisms, etc. Third, the aseptic operation of the equipment In the ultra-clean bench for a variety of separation, inoculation, and transfer operations compared to the inoculation box is more convenient, the method of disinfection is also very simple, aseptic operation before the first 70% - 75% of the alcohol cotton balls will be ultra-clean bench wipe the work surface once, and then start running about 20 - 30min, while turning on the ultraviolet light. After that, turn off the ultraviolet lamp and carry out aseptic operation, separation, or inoculation in the switched-on state. To further ensure the effect of aseptic operation can also be placed in the ultra-clean worktable or inoculation box in another 1 or 2 alcohol lamps, and inoculation around the flame of the alcohol lamp, separation, and transfer tube. It should be swept clean after each use. In the case of poor conditions, in the absence of ultra-clean bench or inoculation box conditions, only around the flame of the alcohol lamp can also be used, except that the requirements of the environment as far as possible in the separation of the inoculation before the decontamination of good, strict use of aseptic operation techniques can be. Fourth, the performance evaluation of equipment To evaluate the performance of purification equipment should specifically include technical indicators and economic indicators of the two elements, the two are interlinked. As a technical indicator, generally to processing capacity, purification efficiency, pressure loss load adaptability, and other characteristics of the parameter; and as an economic indicators, including equipment costs, operating costs, and floor space. In addition to the above basic performance indicators should also consider the installation, operation, maintenance, and other factors. The selection of purification devices and the nature of the gas being processed, the system's operating conditions, and other factors, such as the physical and chemical properties of the aerosol should first be considered (such as chemical composition, temperature, humidity, handling capacity, dust concentration, corrosiveness, etc.), the physical and chemical properties of the particles of the gas with the soot (such as chemical composition, density, size, resistivity, corrosiveness, hydrophilicity, adhesion, explosiveness, etc.), but also Consider the permissible concentration of dust in the purified gas, and then also consider the specific conditions of the installation site and drainage, power supply, as well as the level of installation and management. Above we are on the principle of ultra-clean bench for you to do a multi-faceted analysis, a total of four different aspects, from which we can simply see the high efficiency of these devices, but also know why these devices are now indispensable in industrial production! |
