I think the hood is the most important appliance in the modern kitchen, no one. There have been many problems with the selection of the range hood. I should be considered a professional player in this field. I have organized more than three years to buy, and the service is too small to say four or five thousand people. Let me talk about the choice of the hood. First of all, I declare that I organize a group purchase every year. Last year, more than 2,000 homeowners purchased it through me. Fang Tai also gave advertising fees, so I will take Mrs. Tai as an example. However, the knowledge of the hood selection involved in this article is applicable to all brands, not advertising content, and has nothing to do with specific brands. 1 What kind of hood is smoking well? The main factors affecting the smoking effect of range hoods are: 1. Air volume and wind pressure; 2. The distance between the air inlet of the range hood and the cooker; 3. The distance of the range hood from the public chimney (that is, the length of the pipe) The amount of air is generally calculated as how many cubics per minute. Each model of the range hood will be marked. The larger the air volume is, the larger the wind pressure is, the faster the smoke is exhausted, but the high power of the exhaust air is large, and the energy consumption and noise are relatively increased. Therefore, if you go to see the big brand, you will not pursue the large amount of air, and the noise is also a problem. Need to balance. In general, the size of the kitchen is no more than 15 square meters. A 15 m3/min hood can fully meet the daily exhaust requirements, and the whole kitchen can be ventilated in three minutes. The current mainstream range hoods are all 15-20 cubic meters. The location of the hood should not be too far away from the public chimney, and the installation of the pipe should not be too much, otherwise the smoking effect will be discounted. 2 European top suction or side suction? From the perspective of the effect of the oil smog, the side suction and the top suction of the same air volume and wind pressure are not much different. In theory, the side suction may be slightly better, because the side suction installation is closer to the oil smoke. However, in general, the suction chamber of the top suction is larger, and the range of tobacco control is large, which is not easy to cause the smoke to spread. Each has its own advantages, the overall effect is similar, and the sales volume from the side of the brand product is also basically the same. In addition to suction, there are different values, and different people like different shapes. There are also advantages and disadvantages, such as cleaning problems, side suction is more convenient to wipe, but dirty is more obvious need to wipe every day; top suction is not easy to wipe, dirty is not visible on the top. For example, side suction is not convenient to use a large steamer, it will be encountered; if the suction is too low, there may be problems with touching or affecting the line of sight. Therefore, the choice of each household is not the same, or you have to consider it yourself, the beauty of the cook may have chosen to smoke because of the side suction. 3 What role does the hood have in the middle? Many new European style hood models will be used as a baffle at the air inlet. For example, there is a baffle in the middle of the picture above. It is Fang Tai's "butterfly wing ring suction" technology. In addition to the difference in shape, what is this effect? It expands the coverage of the air inlet, reduces the air inlet height, is closer to the soot, and cushions the rapidly rising soot, which is generally beneficial to the oil smoke. In the middle of the air inlet is to make a baffle or use a grid to block it? Because the inlet area is small, you can increase the suction. A physical store merchant will perform a range hood in the store to absorb the "newspaper" or "washbasin" to reflect the suction of the hood. In fact, the entire air inlet is covered, and the vacuum can of course be sucked up. This does not explain. Suction size. When I was young, I played the game of sucking the glass over my mouth, just like the game. Managed POE Industrial Switches The POE switch port supports an output power of 15.4W or 30W, in line with the IEEE802.3af/802.3at standard, and supplies power to standard POE terminal equipment through network cable power supply, eliminating the need for additional power wiring. In line with IEEE802.3at POE switch, the port output power can reach 30W, and the power available to the powered device is 25.4W. In layman's terms, a POE switch is a switch that supports network cable power supply. It can not only realize the data transmission function of ordinary switches, but also at the same time. Supply power to the network terminal.
POE (Power Over Ethernet) refers to the use of IP-based terminals (such as IP phones, wireless LAN access points AP, network cameras) without any changes to the existing Ethernet Cat.5 cabling infrastructure. Etc.) While transmitting data signals, it can also provide DC power supply technology for such devices. POE technology can ensure the normal operation of the existing network while ensuring the safety of the existing structured cabling, minimizing costs.
POE is also known as a local area network-based power supply system (POL, Power over LAN) or Active Ethernet (Active Ethernet), sometimes also referred to as Power over Ethernet for short. This is the use of existing standard Ethernet transmission cables to transmit data and data at the same time. The latest standard specification of electric power, and maintains compatibility with existing Ethernet systems and users. The IEEE 802.3af standard is a new standard based on the POE of the Ethernet power supply system. It adds related standards for direct power supply through the network cable on the basis of IEEE 802.3. It is an extension of the existing Ethernet standard and the first international standard for power distribution. standard.
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