商用厨房内的
排烟罩是为饮食开发的大型饮食油烟净化设备，它是依据传质双模理论、选用磕碰、冷凝、吸收过滤的技术，净化烹调过程中发作的油雾、气味等有害物质。排烟罩在净化设备中设置了气体收集、洗刷、反应吸收、洗刷剂循环、机械过滤器、气体运送、降温防火等结构单元，是集气体的收集-净化-运送于一体；排烟罩是集-消防-于一体的多功能油烟净化设备。那么商用厨房内的排烟罩的作业原理是什么呢？下面燊赫通风小编就来给大家大致介绍一下。
The smoke hood in the commercial kitchen is a large-scale cooking fume purification equipment specially developed for the catering industry. It is based on the dual-mode theory of mass transfer, using the technology of bump, condensation, absorption and filtration to purify the harmful substances such as oil mist and smell during the cooking process. The fume hood is equipped with gas collection, washing, reaction absorption, detergent circulation, mechanical filter, gas transportation, cooling and fire prevention and other structural units in the purification equipment, which is a multi-functional and efficient fume purification equipment integrating gas collection, purification and transportation; the fume hood is a multi-functional and efficient fume purification equipment integrating environmental protection, fire protection and energy conservation. So what is the working principle of the smoke hood in the commercial kitchen? Let's have a brief introduction of the ventilation system.
1、通风能力：
1. Ventilation capacity:
（1）配消声器降低风机噪声。
(1) Equipped with muffler to reduce fan noise.
（2）分外制作的专用高速转速风机、压力高、风量大，足以打败凌乱管道的阻力。它的通风效果好。
(2) Specially made high-speed fan with high pressure and large air volume is enough to defeat the resistance of disordered pipes. It has good ventilation effect.
（3）分外电机耐高温、耐水汽，并且它的可靠性也高。
(3) Besides, the motor is resistant to high temperature, water and steam, and its reliability is also high.
2、净化原理：
2. Purification principle:
（1）剩下少量的油烟再进入过滤桶进行二次净化，固态颗粒沉积在滤料上，废油精槽道流入油盒。滤筒内滤料可便当的替换。
(1) A small amount of the remaining oil fume enters the high-efficiency filter barrel for secondary purification, and the solid particles are deposited on the filter material, and the waste oil fine channel flows into the oil box. The filter material in the filter cartridge can be easily replaced.
（2）在风机的抽吸力效果，油烟进入滤油栅进行初级净化，大多数油烟的灰粒和液滴被截留，费油顺油道流入油盒，颗粒沉积在金属滤油栅上。滤油栅可以便当的取下清洗。
(2) In the suction effect of the fan, the oil fume enters the oil filter screen for primary purification, most of the ash particles and liquid drops of the oil fume are intercepted, the waste oil flows into the oil box along the oil passage, and the particles are deposited on the metal oil filter screen. The oil strainer can be easily removed and cleaned.
（3）通过排烟罩净化后的空气经风机、气管排向室外。
(3) The purified air through the smoke hood is discharged to the outdoor through the fan and air pipe.
厨房排烟罩
Kitchen smoke hood
在人们的日常生活中，每家的厨房都需要用厨房排烟罩来保障厨房空气的清新，所以厨房排烟罩为局部排烟的一种形式。在设计过程必须要确保罩口风速的稳定。通过罩口风速计算风量，从而得到厨房排烟罩的所需的总风量。通过总风量计算确定厨房排烟管道的横截面积。再根据厨房整体高度确定管道高度。
In people's daily life, every kitchen needs to use the kitchen smoke hood to ensure the fresh air in the kitchen, so the kitchen smoke hood is a form of local smoke exhaust. In the design process, it is necessary to ensure the stability of the wind speed at the hood opening. The air volume is calculated by the air speed at the hood mouth, so as to obtain the total air volume required by the kitchen smoke hood. The cross-sectional area of kitchen exhaust pipe is determined by the total air volume calculation. Then determine the height of the pipe according to the overall height of the kitchen.
厨房排烟罩安装切记漏油与漏风的处理。处理时所有材料一定要选用防火材料。在管道安装过程中一定要设置防火阀，确保厨房排烟罩在使用过程中发生火灾后防火阀应该自动闭，防止火烧连营的现象发生。
Remember to deal with the oil and air leakage when installing the smoke hood in the kitchen. All materials must be fire-proof when handling. In the process of pipeline installation, fire damper must be set to ensure that the fire damper should be closed automatically after the fire occurs in the use of kitchen smoke hood, so as to prevent the phenomenon of continuous fire.
厨房排烟罩选用风机时应准确计算风管的风速、流量、风阻，这样在选择风机过程中能准确的确定风机的风量、风压、电机功率。从而达到的良好效果，对日常经营中减低成本起到重中之重的作用。
When selecting fans for kitchen smoke hood, the wind speed, flow and wind resistance of the air duct shall be accurately calculated, so that the air volume, wind pressure and motor power of the fans can be accurately determined in the process of selecting fans. So as to achieve the good effect of energy saving and play a key role in reducing costs in daily operation.
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