What kind of air duct should be installed in the central air conditioner, kitchen and room, and what

There is oil smoke in the kitchen, and the fresh air system, exhaust system, and smoke exhaust system are generally set up.

It is best to set up the fans of each system outdoors, and the connection of equipment and pipes is softly connected to reduce indoor noise.

The fresh air can be set up with a muffler, and the exhaust air can be counted. Small systems can save fresh air and use natural air supplementation. The muffler installation should be set up with an independent bracket, do not use pipes to support the muffler, and pay attention to the installation space to meet the requirements (some mufflers are pot-bellied).

The exhaust air volume should be greater than the fresh air volume (fan air volume) to prevent the overflow of oil smoke. The exhaust system should be set up with a fume purifier (environmental protection requirements, generally located behind the exhaust fan), the exhaust pipe is best made of stainless steel, and the cost is low. Set up a fume hood for exhaust air (that is, on the stove, there should be an oil groove to facilitate the collection of waste oil - not to collect gutter oil, in fact, the principle is the same as that of a household fume hood, but larger).

The exhaust duct should reduce turning.

Smoke exhaust is a fire prevention requirement, and a fire damper is set up. Depending on the size of the kitchen, it can also be dispensed with.

In addition, a steel wire mesh is set up in the outdoor part of the fan to prevent debris from entering. The fan is oriented to see the local perennial wind direction (that is, what wind often blows in the local area), and do not install it against the wind. Do not get too close to the exhaust fan outlet and the new fan inlet.

The exhaust fan and fresh fan are powered by the strong electricity in the building, and the power is directly cut off by the building when it catches fire; The fire smoke exhaust fan should be powered by the fire power supply.

It's not comprehensive, so let's refer to it.

1. Pipes need to be installed separately.

2. An exhaust fan is used for smoke exhaust in the air duct, and a counterflow veneer is installed outside the exhaust fan.

3. When installing a muffler, you need to pay attention to the connection and sealing.

It is necessary to install household dampers, isolate the ventilation of kitchen and room air ducts, install exhaust fans and counterflow baffles, and pay attention to the soft connection in front and the vibration of fans and mufflers.