Schematic diagram of flue check valve installation, which must be understood before ceiling.

Modern houses and high-rise buildings use a common flue for more than a dozen households. People in China like to fry with fire and pay attention to color, fragrance and taste. Every dinner, the smell of what is cooked next door wafts over, which is generally unbearable for housewives living at home. How can we avoid the smell of cooking fumes from neighbors from reaching your home along the flue? Today, Tutu will introduce an artifact-flue check valve and its installation diagram.

What is a flue check valve?

The flue check valve, as its name implies, is used in the pipeline system, that is, in the flue. Its main function is to prevent the medium from flowing back, and it can be applied to pipelines of various media. The installation of the flue check valve in the kitchen must be completed before the ceiling! Generally, the smoke crossings left by developers are above the normal ceiling height, so once the ceiling is completed, it will be a lot of trouble to install check valves.

Mainly the check valves of developers are generally poor. After a long time, the oil smoke will get tired of the loose-leaf opening, and the wind will not be easily drawn out, which will affect the performance of the hood. The working principle of the flue check valve is: when the range hood works, the valve plate is opened by the power of the range hood, so that the indoor oil fume is discharged into the public flue through the valve; When the lampblack machine stops working, the valve plate will automatically close to prevent the exhaust gas in the flue from flowing backwards, thus preventing the lampblack from flowing backwards and preventing the indoor lampblack from cross-contamination.

Installation of flue check valve

Then, after understanding the importance of check valves, how to install them? Then look down:

1. Install the fireproof flue check valve at the reserved check valve hole of each flue. First, mix the cement with special glue and cover the edge of the check valve, and then install it at the reserved check valve hole.

2. An oil net is installed at the air inlet of the valve body, an oil receiving box is arranged below the oil net, and the oil net is movably connected with the air inlet of the valve body; A whole plate damper is installed in the one-way valve cavity behind the oil net; The air inlet pipe body is sleeved in the one-way valve cavity; The air door is installed on the pipe body through an eccentric shaft fixed on the wall of the air inlet pipe, and the air outlet of the check valve can be opened and closed around the shaft.

Matters needing attention in installation of kitchen flue

First, the auxiliary flue must be preserved.

Every kitchen has a flue, and at the same time, the flue also has the main and auxiliary points. The main flue runs through the whole building and the auxiliary flue is relatively independent. Generally, the lampblack at home will go to the auxiliary flue first, and then enter the main flue through the hole in the partition, so as to ensure that the lampblack of every household is isolated. However, if the auxiliary flue is directly connected with the main flue, it will lead to the phenomenon of backward smoke or cross smoke due to too low pressure.

Second, the construction details should pay attention to the problem

First of all, it is very important to choose the installation position of the range hood. The shorter the pipe, the better. Some owners will pull the pipe longer for the sake of beauty. After turning off the range hood in this way, there will be a lot of oil smoke in the pipeline that can't be discharged and then poured back indoors. In addition, in order not to destroy the original main and auxiliary flue, its opening direction cannot be changed at will, and it must be drilled in the auxiliary flue.

Third, pay attention to safety when opening the window to smoke.

In order to avoid the problem of smoke crosstalk, some owners gave up the original flue and directly opened holes in the windows to smoke. This is ok, but there are a few points to pay attention to.

First of all, before opening a hole in a window or wall, it must be approved by the property; Secondly, pay attention to safety issues. Generally, the end of the exhaust pipe is metal. If the hole is too small, the metal heat transfer may cause the glass to burst and hurt pedestrians, and the smoke exhaust pipe will lead out of the window, and the strong north wind blowing head-on will lead to the backflow of oil smoke. It is best to extend the pipeline and nest it downward, so as to prevent rainwater from flowing into the pipeline when it rains, and to keep the windshield out.

Four, check valve door often change.

If the auxiliary flue has been removed, or it is necessary to better prevent the flue gas from falling back, then use the flue check valve. In general, the function of the check valve of the range hood is not obvious, but installing the check valve in the flue can protect the range hood, so that the flue gas in the flue will not flow back to the pipeline and the range hood. However, after installing the check valve, it should be cleaned regularly, otherwise it will make the check valve open and lose its function. It is best to replace the flue check valve every two years or so.

After knowing how to install it, Rabbit still wants to emphasize the importance of installing the flue check valve again. It is generally recommended to install a public flue, whether it is about to be renovated or under renovation, because the high-rise lampblack is easy to flow backward, so you can consider saving some money at the lower level, and because the check valve has different materials such as plastic and stainless steel to choose from, the relative price is about 100 yuan, which is not expensive, but it is really useful. And if installed, you can find a master who is helping to decorate at home according to this article.

The above is the related content of the installation schematic diagram of flue check valve, hoping to help everyone!

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