Gantry Type Video Measuring Instrument
The gantry image measuring instrument can efficiently detect the contours, surface shapes, dimensions, angles, and positions of various workpieces. It is mainly used to measure the size and angle of parts and components that are difficult or impossible to measure with caliper and angle ruler, but play an important role in assembly. It can also be used to take pictures of some parts and components to analyze the causes of defects, especially for PCB boards, films, protective films, optical glass, electronics, large sheet metal parts, connectors, precision mechanical parts, electronic components, semiconductor components and other industries, It can achieve rapid and accurate detection in large quantities.
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1. Adopting a high-power industrial high-definition color CCD and a continuous automatic zoom depth lens with fixed frame position, the zoom rate does not require calibration, greatly improving work efficiency and measurement accuracy.
2. Images can be output to electronic computer software for surveying and mapping engineering storage. It can be used for photography, copying, and storage.
3. It can inspect the specifications of buried holes, pipe trenches, etc. on the upper surface of the tested object block. The image and color tone on the surface of the product workpiece can be clearly seen.
Why do you want to humidify the purification workshop?
The general purification workshops, especially the clean workshops used in the electronics industry, have strict constant temperature and constant humidity requirements. They not only have strict requirements on the temperature and humidity in the plant, but also have strict requirements on the fluctuation range of temperature and relative humidity. Therefore, it is necessary to take corresponding measures in the air treatment of the air conditioning system, for example, to cool down and dehumidify in summer, and to heat and humidify in winter.
For the humidification problem of the air conditioning system, there are many kinds of humidification methods commonly used, such as water, wet film, high pressure spray and ultrasonic water humidification. These humidification methods are equal humidification processes. The steaming, the spray drying steam and the electrode (electric heating) humidification are steam sprayed into the air conditioner, and the humidification method is an isothermal humidification process. In terms of ensuring the accuracy of the relative humidity in the clean plant, the above-mentioned water humidification methods such as water spray, high-pressure spray, and wet film have low control precision, so when the relative humidity accuracy in the clean plant requires ≤±10%, Zui does not use it. .
According to years of experience, different humidifiers have different application scopes: such as: ultrasonic humidifiers, wet membranes, high pressure sprays and other water humidifiers, which are characterized by large humidification, low investment costs, and poor relative humidity control accuracy. It is often used for humidification of industrial plants with large humidification capacity and air conditioning systems for general comfort air-conditioned rooms with less stringent relative humidity requirements (> ±10%).
The dry steam humidification and electrode (electric heating) type humidification with high relative humidity control accuracy are more commonly used in the humidification of the air conditioning system of the constant temperature and humidity clean factory with strict relative humidity precision.
For biological clean rooms controlled by microorganisms (eg biopharmaceuticals, clean operating rooms, biosafety laboratories, laboratory sterile animal breeding rooms, etc.), the focus is on controlling the production and spread of microorganisms, because moisture and moisture are microbial breeding. And the conditions of breeding, so water humidification, wet film, high pressure spray and other methods can not be used in the biological clean room, only dry steam humidification and electrode (electric heating) type humidification.
Another noteworthy issue is that in recent years, the relative humidity of outdoor air in winter in southern China, such as Shenzhen, Guangzhou, and East China, is relatively standardized. The relative humidity of the outdoor air conditioner is calculated to be low. For example, the outdoor relative humidity in winter is 70% in Shenzhen and Guangzhou, and 75% in Shanghai and Suzhou. The measured outdoor relative humidity in these years is sometimes only about 30%. The clean room that is up and running has insufficient humidification, and the indoor relative humidity is low, which does not meet the design requirements. In order to simplify and save money, some factories add humid film or spray to the original air conditioner to humidify to increase the amount of humidification. However, contrary to expectations, not only can it not be added to the amount of moisture, but it will quickly become saturated and condensed out, and it will not reach the purpose of humidification. Because the wet film and high-pressure spray belong to the humidification process, the air-conditioning air before humidification must be heated to a certain temperature and then humidified to achieve the purpose of humidification. It is not feasible if heating is not performed.
Another problem that should be noted in the humidification problem is the problem of air flow in the air conditioner. In some projects, the problem of humidified water is not handled well, and the resulting medium-efficiency filter or even the high-efficiency filter is wetted by the water carried. For the dry steam humidifier, also pay attention to the slope and aspect of the steam pipe and the condensate pipe, so that the condensate is quickly discharged outside the air conditioner. If the humidifier is installed in the fan section of the air conditioner, measures should be taken to avoid condensation of water droplets on the motor, causing the motor to be short-circuited.