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What heating system should be used in cold areas, Harbin, public buildings and university research buildings? Is the radiator real or floor heating?
1. Determine the model of refrigeration unit according to the use area of the building, determine the specifications of chilled water pipe and cooling water pipe after determining the model of refrigeration unit, determine the head of circulating pump according to the height of the building (circulating pump needs to be available), and determine the model of cooling tower and the specifications of cooling water pipe according to the model of refrigeration unit; Determine the direction of water pipes according to the building;

2. A fresh air system should be added to the hot and cold air used in the room, and the air supply volume of the fresh air unit should be determined according to the use area (one for each floor of the fresh air unit and one for two floors with small use area). After determining the air supply volume of the fresh air unit, determine the specifications and direction of the air supply pipeline.

3. Fresh air is generally comfortable to supply air, and the requirements for wind speed should not be too high. The specifications and models of tuyeres are determined according to the air volume and room size (each tuyere is equipped with a regulating valve);

4. Fan coil units: determine the specifications and quantity of fan coil units according to the room size; Look at the use function of the room to determine the installation position of the fan coil;

5. Let's not talk about all kinds of valve parts in the refrigerator. You should know that valve parts should be added, running air should be added, and equipment should be damped and damped; So is the fresh air machine room. Fire dampers and electric control valves are also necessary, and the specifications are determined according to the pipe diameter. Don't forget to add a fire damper when the air duct passes through the fire zone.

6. The air-conditioning water pipe is high, and the air is exhausted at the end.

I wonder if the air conditioning design in your includes smoke control;

Determine the specifications and models of the smoke exhaust fan according to the fire zone, then calculate the specifications of the smoke exhaust pipeline and the smoke exhaust port, and determine the position of the smoke exhaust port according to the fire zone; Determine the specifications of the 280-degree fire damper according to the specifications of the flue.

7. Don't forget the positive pressure air supply in the stairwell. The booster fan is on the roof, and the booster fan and the booster outlet are determined according to the building.

8. For crowded rooms, an exhaust system should also be set up.

1. How to add valves to various pipelines?

There is an atlas: 9 1sb-**, which is dedicated to introduction and explanation.

2. Can you tell me more about the booster tuyere?

The stairwell has a smoke outlet with a 280-degree fire damper, which is closed at ordinary times and opened in case of fire; Self-hanging louver tuyere.

What tuyere should be used in the 3.4-meter-high lobby?

Swirl and jet tuyeres should be used.

4. Does the fresh air unit need to add a static pressure box to the external wall?

1. It can be added or not, and it can be added when there is a big deviation between the outlet of the external wall rain shutter and the inlet of the unit. 2. In order to prevent the noise of the unit from coming out of the room, it will be added when it has an impact on the environment.

5. How to deal with the return air in the hotel room?

When the room is small, use the bathroom to exhaust air. When the room is large, such as the presidential suite, an independent exhaust system is set up.