Five star hotel ventilation smoke exhaust pipe construction points are as follows:

- Preparation before construction: Before construction, the engineer of the equipment manager should draw the pipelines of each work on a single line plan. Use one colored pen for each type of pipe. Synthesize its elevation at each intersection to see if there is any contradiction, find it in time, and solve the problem before installation.

- To solve the pipeline collision: to solve the principle of collision and coordination of various ventilation pipes, generally "small tube let big tube, pressure let no pressure". For example, if the water pipe collides with the air pipe, the water pipe should turn. If the cold and hot water pipes collide with the downpipe, the cold and hot water pipes should be changed.

- Pipe laying through beams: In order to reduce investment, save space, and reduce the height of the floor, some pipes without slope requirements can be laid through beams, such as water pipes, fire spraying dry pipes, etc.

- Coordination of various types of work: For more complex civil buildings, in the design stage, various types of work such as: HVAC, water supply and drainage, power supply and lighting and building should negotiate the space separation, and determine the elevation range of each pipeline. Under normal circumstances, one should not go beyond the limits set for oneself. In case of individual pipe sections to cross the boundary should be negotiated with the hotel ventilation works other works.

- Reasonable design of pipes: insufficient ventilation area of the main smoke exhaust pipe, small cross-sectional area of the pipe, accumulation of the pipe after use, and poor smoke exhaust at the lower level will affect the smoke exhaust effect, so reasonable planning and layout of pipes are required during design and construction.

- Pay attention to the installation position: it is very important to choose the location of the range hood device, and the shorter the pipe, the better.

- Save the secondary flue: Every kitchen has a flue, and the flue also has a main and secondary division, the main flue runs through the entire building, and the secondary flue is relatively independent.

- Check valve cleaning: if the secondary flue has been removed, or the effect of smoke needs to be better, then use the flue check valve. Check valves need to be cleaned regularly to ensure their normal operation.

- Pay attention to smoke safety: before opening a window or wall, you must pass the consent of the property; Secondly, pay attention to safety issues, generally the end of the smoke pipe is made of metal, if the hole is too small, the metal heat transfer may cause the glass to burst, injuring pedestrians, and the smoke pipe leads out of the window, and the strong north wind blowing will cause the oil smoke back. After the pipe is inserted, the pipe is lowered, which also prevents rain water from entering the pipe and keeps the wind out.