As we all know, Chinese food pays attention to cooking all kinds of stir-fry with big fire, so it must produce all kinds of lampblack when cooking. Did you smell the smoke in the kitchen when you were cooking? When cooking, some people are like entering a foggy forest, filled with smoke. At this time, the oil fume can't be removed well, and it smells of oil fume. Considering the blockage and smell of oil smoke, many people think that there is no check valve on the flue, but this is only one of the reasons.

Although the kitchen needs a range hood to keep it from turning black, many people will notice that it is useless to turn on the range hood. When the neighbor cooks, the kitchen at home smells of smoke! In fact, this is because the kitchen doesn't really smell like a string, so frequent problems will bring very bad results. In this issue, talk about the renovation will bring several important positions, so that kitchen fumes will not come back. Not only the check valve, but also a detailed analysis, avoiding the option of directly stepping on the hole to help you not step on the hole.

many people think that cooking fume in the kitchen is related to the range hood, but the smell of oil fume backflow in the kitchen has nothing to do with the range hood. In fact, this is a wrong understanding. Because the removal of lampblack and the prevention of lampblack countercurrent are related to lampblack machine. Moreover, these two points are also considered in the design and manufacture of range hoods, and there are good countermeasures.

First, the smoke exhaust effect of the range hood

For the range hood, only by selecting the appropriate smoke exhaust amount according to the size of the kitchen can the lampblack be quickly removed from the kitchen. You can't get rid of the oil fume from the kitchen immediately by buying a range hood casually.

general range hood: it can usually meet the basic smoke exhaust function. This is also a basic function, but it cannot be completely ruled out in time. Because, for a part of the range hood, the quality of the motor and the pure smoke effect are very general, and only the lampblack can be removed, and the lampblack can be raked to one side and smoked on all sides soon, so turning on the range hood in the kitchen will also cause the phenomenon of lampblack "straggling", which will lead to the delay of smoke exhaust < P > High-quality range hood: the high-end and high-quality range hood on the market at present has shown extremely powerful functions and smoking effects, regardless of the quality of the motor and the effect of lampblack extraction. When the range hood is turned on, the waste burned by the range hood and the oil fume harmful to human body generated in the cooking process can be quickly removed and discharged outdoors, thus reducing pollution and purifying the air. Accurately isolate the oil fume and protect the freshness of the kitchen at all times. In addition, the whole process is basically silent.

second, the fume check valve attached to the range hood

There is a fume check valve on the range hood, and many people don't know that its position is the outlet position of the exhaust hole above the range hood. With this small check valve, you can prevent the smell of oil smoke in the flue and prevent the kitchen at home from being affected by the oil smoke from the neighbors. In addition, for most hoods, although they are equipped with check valves, the materials used may be made of recycled plastic, which is of poor quality, and the sealing effect is naturally poor. It can't stop smoke, and it can only prevent the garbage from decoration and public flue from falling into the hood, and there are other effects < P > However, for some hoods, the check valves in this position are of very good quality, and their materials are also made of environmentally friendly materials. Excellent sealing effect is achieved, even if water is injected into the check valve, it will not leak into the range hood. Only when the range hood is used can the smoke be turned on, and a good sealing effect can be obtained, which can prevent the oil fume from the public flue from returning to the kitchen through the oil fume and easily solve the trouble of the oil fume.

many people know that there is a check valve in the kitchen flue, but few people do the right thing. There is a phenomenon of oil fume backflow in the kitchen. Check valves need to pay attention to material selection and correct installation. If we don't do these two things, we can't play our original role.

iii. materials of check valves

generally, there are the following types of check valves installed on the kitchen flue: fire flue check valves, ABS plastic flue check valves, stainless steel flue check valves and five exhaust flue check valves. Among these different types, ABS plastic flue check valves are mostly used. The main reason is that the flue check valve is moderate in price, convenient to install and relatively obvious in smoke suppression effect, which is well received and used by consumers.

IV. Installation of check valve

"Three-point product and seven-point installation" is the same for flue check valves. Moreover, many people buy high-quality check valves, but due to improper installation, the oil fume will flow back to the kitchen, and the oil fume will flow back.

therefore, it is not difficult to see that the installation of the check valve of kitchen oil fume is very important, and it is also one of the most critical factors to prevent the oil fume from flowing back.