Ventilation smallpox: design instructions for a clean operating room
In the design process of the clean room, the amount of air sent is generally determined by the number of air exchange times. For the first-level operating room, the requirements are strict. For clean one-way flow, it is generally not determined by the number of air exchange times. Its air supply is: 2.6 × 2.4 × 0.45 × 3600(wind outlet specification is 2.6 × 2.4, wind speed is generally 0.2 m/s ~ 0.3 m/s, considering attenuation, generally take 0.4 m/s ~ 0.45 m/s[ 1] The air outlet of the operating room is generally used for wind ceiling). Secondary operating room: 30 to 36 / H,[ 2] Level 3 operating room: 18 to 22 / H, Level 4 operating room: 12 to 15 / H.
Taking a hospital clean operating room summer once wind system as an example, the design parameters are as follows:
Table 1 Design Parameters for a Cleaner Operating Room
room |
area |
Layer height |
level |
Ventilation |
Residual heat |
Moisture |
Heat to humidity ratio |
New wind volume |
New wind load |
Total load |
|
m2 |
m |
|
m3/h |
kw |
g/s |
|
m3/h |
kw |
kw |
OR1 |
42 |
3 |
1 |
10100 |
8.6 |
3.64 |
8600 |
1000 |
14.74 |
23.34 |
OR2 |
36 |
3 |
2 |
3888 |
6.4 |
2.77 |
8312 |
800 |
11.8 |
18.2 |
OR3 |
36 |
3 |
3 |
2376 |
5.8 |
2.5 |
8286 |
800 |
11.8 |
17.6 |
OR4 |
36 |
3 |
4 |
1620 |
5.2 |
2.33 |
8000 |
600 |
8.84 |
14.04 |
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