济南排烟罩是用于酒店、餐厅厨房的一种排烟装置，其作用既可以补充一定数量的新风，一方面可以平衡气压，避免厨房负压过大，又可以降低厨房内的温度，改善工作环境。但是市面上排烟罩的种类有好多种，选择一款适合自己厨房的才是重要的。
Jinan smoke exhaust hood is a smoke exhaust device used in hotel and restaurant kitchens. It can not only supplement a certain amount of fresh air, but also balance the air pressure, avoid excessive negative pressure in the kitchen, reduce the temperature in the kitchen and improve the working environment. But there are many kinds of smoke hoods on the market, and it is important to choose one that is suitable for your kitchen.
1、密闭罩
1. Airtight cover
污染源全部密闭在罩内，其优点排风量小，可有效控制有害物，不受环境的影响，但影响操作，主要用于控制要求高的场合，危害比较的的气体或烟尘。在食品厂或厨房的自动化生产线上应用较多。自动连续电炸锅，自动连续烘焙设备都是在这种烟罩里面工作。
All pollution sources are enclosed in the hood, which has the advantage of small exhaust air volume, and can effectively control harmful substances without being affected by the environment, but it affects the operation. It is mainly used in places with high control requirements to eliminate harmful gases or smoke and dust. It is widely used in automatic production lines of food factories or central kitchens. Automatic continuous electric fryer and automatic continuous baking equipment are all working in this kind of smoke hood.
2、柜式排烟罩
2. Cabinet type smoke exhaust hood
柜式排烟罩有一面敞开用于人工操作，其他面均密封，敞开面保持一定的吸风速度，以保证柜内有害物不逸出，主要应用与实验室。
Cabinet type smoke exhaust hood has one side open for manual operation, and other sides are sealed. The open side maintains a certain air suction speed to ensure that harmful substances in the cabinet do not escape. It is mainly used in laboratories.
3、外部吸气罩
3. External suction hood
外部吸气罩位于烟气源附近，靠近烟口的抽吸作用将烟气吸入烟罩内。对生产操作影响小，安装维护方便，但增加了对周围空气的吸入，排风量大，效率低，控制有害物能力较差，主要用于因工艺要求或操作条件有限不能将污染物密闭的场合。
The external suction hood is located near the smoke source, and the smoke is sucked into the hood by the suction function near the smoke outlet. It has little impact on production and operation, and is easy to install and maintain, but it increases the intake of surrounding air, with large exhaust volume, low efficiency, and poor ability to control harmful substances. It is mainly used in situations where pollutants cannot be closed due to process requirements or limited operating conditions.
4、接收式排风罩
4. Receiving exhaust hood
接收式排风罩的罩口直接朝向烟气流的运动方向，对准污染源运动方向，控制烟气的扩散。厨房斗式吊挂排烟罩就是接收自然抬升烟气的。
The hood opening of the receiving exhaust hood directly faces the movement direction of the flue gas flow and is aligned with the movement direction of the pollution source to control the diffusion of the flue gas. The bucket type hanging smoke exhaust hood in the kitchen is designed to receive naturally raised smoke.
5、吹吸式排烟罩
5. Blowing and sucking smoke exhaust hood
吹吸式排烟罩由吸气罩和吹出气流组合而成的，抗外界气流扰动能力强，控制效果能力强，效果好，不影响工艺操作，但需要增加吹风管道。主要作用来提高排烟效果，吸气罩离烟气源较远或者附近有气流涌动，仅靠吸风控制烟气较困难的场合。
The blowing and suction smoke exhaust hood is composed of the suction hood and the blowing air flow, which has strong resistance to external air flow disturbance, strong control effect and good effect, and does not affect the process operation, but needs to add blowing pipes. It is mainly used to improve the smoke exhaust effect. The suction hood is far from the smoke source or there is airflow surge nearby, and it is difficult to control the smoke only by suction.
The above are some common smoke hoods in catering kitchens. Please consult our website for specific performance parameters and prices of various smoke hoods http://www.jnqsg.com Staff, we will serve you wholeheartedly!
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