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In the selection of cold air machine, the following aspects suggest that you should pay attention to

     1. equipment application scenarios determine: the air cooler to buy is for the production of components (such as home appliance industry) or products (such as food industry) cooling, or for specific space (such as laboratory, test chamber) cooling, this is the first to determine the factor, and the size of the air cooler is closely related to the specifications.
     2. Determine the temperature control range of the equipment: the type of the cold air cooler should be determined according to the temperature range required by the customer. The temperature control range to the low temperature below zero is the low temperature type.
     3. Determine the air supply range of the equipment: the air supply range of the air cooler is related to the application scenario and the volume of the equipment. In the selection, the manufacturer should communicate with the detailed data, provide the necessary parameters of the application scenario of the air cooler and the equipment, and help determine the compressor power, fin size and other key component parameters of the equipment.
     4. equipment air supply air volume and wind speed: the air supply volume and wind speed of the air cooler can be adjusted intelligentially, so it is necessary to know the specific needs of the equipment or space cooling, from high temperature (or normal temperature) to the specific number of degrees and the site area. Calculate the required air volume and wind speed according to the calculation formula (N=V× N /Q, n-fan number (units), V-site volume (m3), N-air change times (times/hour), Q is the single air volume unit of the selected fan model is m3/h) and experience, and then match the motor, fan, outlet aperture and other data that can provide such air volume and wind speed. Determine device parameters.

Industrial fan and negative pressure fan difference

Industrial fan and negative pressure fan have a similar role, that is, cooling and dehumidification, so, people will be some hesitation in the choice, do not know which one to choose, in fact, industrial fan and negative pressure fan in the function similar or there are some differences, understand the difference between the two, we can choose according to their own needs, then, Industry what are the difference between big fan and suction fan? Jiaxing and below small make up answers, hope to be of help.
Industrial difference between fan and suction fan
1, installation is different
(1) Industrial fan installation. Big fan industry general installation at the top of the workshop and workshop working range is wide, so make the very big part of the area can be cool.
(2) Installation of negative pressure fan. Negative pressure fan general door installed outside the window of the shop, next tuyere installation, convenient outside convulsions.
2. Different principles
(1) Industrial fan principle. The cooling principle of the industrial fan is that the air flow from the top to the bottom into a cone to the ground, to the ground along the horizontal direction of the flow, meet the side barrier or the horizontal airflow near the fan to push up to the roof, can achieve effective full range of overall ventilation and effective cooling of personnel, the environmental requirements are not high not closed space can also effectively cool.
(2) Working principle of negative pressure fan. When the fan is energized to work quickly to achieve large exhaust air volume. Can make indoor environment quickly and produce a outdoor air pressure difference, form a powerful negative pressure, forcing indoor pollution hot air must be in the direction of the flow we set emitted quickly, in indoor air pressure drop.
3. Different effects
(1) industrial fan effect. In terms of personnel cooling. The natural breeze generated by the large energy-saving fan blows on the human body, promoting the evaporation of sweat to take away the heat, while cooling the human body, bringing the feeling of cooling. Usually, the cooling sensation can reach 5-8℃. In terms of natural ventilation, industrial fans can accelerate the indoor air flow to achieve the effect of natural ventilation; In terms of desiccant moisture, dehumidifying effect of industrial fan, direct and effective, it promotes the whole space air mixture.
(2) Negative pressure fan effect. Due to the sunlight building, machinery and equipment, such as the human body heat source leads to the temperature is higher than outdoor ventilated places. Negative pressure fan will indoor heat flowing rapidly, let the room temperature and ambient temperature was flat, not the workshop temperature. Negative pressure fan only ventilation cooling function, no refrigeration function, cool is the feeling of the human body.
4. Different places of use
(1) Industrial fan use place. Shopping mall, stadium, railway stations, airports and other large public buildings, promote the air circulation, dispel peculiar smell, to create a comfortable shopping and ornamental environment, increase sales. And the industrial fan in the mobile fan can be used in more open places, the use is also more convenient.
(2) Use place of negative pressure fan. Such as garment factory, electronics factory, entertainment venues, pig farm, garden flowers and so on need to be closed cooling and humidity.

Environmental protection air conditioning maintenance and maintenance

One, daily maintenance
1, set up special management, special operation.
2. Keep the water source clean for a long time.
3, please do not arbitrarily frequency switch environmental protection air conditioner.
4, try to use frozen state, can keep the air clean.
5, please do not arbitrarily and frequently change the working state of environmental protection air conditioner.
6, every day should press the automatic cleaning function key, clean the bottom basin of environmental protection air conditioner and change water.
7, every 1-2 weeks, clean environmental protection air conditioner filter once (depending on the external environment pollution); Can maintain the efficiency of the unit.
8. If the machine is shut down for a long time in winter, please close the water source and drain and clean the water in the bottom basin to avoid odor and mosquito breeding.
9, about 3-4 months to replace the filter filter (depending on water pollution)
Two, cleaning the steps of energy saving and environmental protection air conditioner
1, disconnect the main power supply of environmental protection air conditioner (disassemble the control board, so as not to mislead the boot and cause danger).
2, unscrew the screw on the filter net of environmental protection air conditioner, lift the filter net up, and then pull the filter shading part outward, that is, remove the filter net (wet curtain removal method is also the same).
3, carefully remove four pieces of environmental protection air conditioning filter (or wet curtain), soak and rinse with water (can not put any chemicals, so as not to corrode the wet curtain and filter, water pressure is not too high, so as not to damage the filter and wet curtain)
4. Cover the environmental protection air conditioning fan with plastic bags, connect tap water to the spray pipe and cleaning mouth, and reverse rinse the spray pipe with clean water.
5. Wash the bottom basin of environmental protection air conditioner with clean water.
6, the four pieces of filter screen (or wet curtain) back to environmental air conditioning machine.
7, reconnect the main power supply of environmental protection air conditioner, and perform other operations after 5 minutes.
Note: safety belt must be fastened when working at height.