Total heating area*1000(m2) |
Proportion of large space places (canteens, restaurants, gymnasiums, exhibition halls, theaters, etc.)% |
Number of people |
Application selection: |
Pool area(m2) |
Pool category selection: |
Number of shower heads in bathroom |
Bath volume(m3) |
Heating load estimation: | Total heating area*1000(m2) | Proportion of large space% |
Domestic water load estimation: | Number of people | Application selection: |
Estimation of domestic hot water load of swimming pool: | Pool area(m2) | Pool category selection: |
Estimation of domestic hot water load in bathroom: | Number of shower heads in bathroom | Bath volume(m3) |
Theoretical flue gas flow:Nm3/h;Standard state flue gas volume |
Flue gas temperature:℃ |
Flue material: |
Inner diameter of flue:mm;Equivalent diameter DN=4A/U |
Flue length:m |
Number of 90 degree elbows: |
Variable cross-section size head: |
Butterfly valve: |
Chimney material: |
Chimney height:m |
Chimney diameter:mm |
Water flow:m3/h |
Inner diameter of steel pipe:mm |
Steel tube length:m |
Number of 90 degree elbows: |
Ball valve: |
Number of gate valves: |
Number of check valves: |
Number of shut-off valves: |
Actual air volume:m3/h;Working condition air volume |
Air duct material: |
Inner diameter of air duct:mm;Equivalent diameter DN=4A/U |
Air duct length:m |
Number of 90 degree elbows: |
Number of variable sections: |
Butterfly valve: |
Air temperature: ℃ |
Local altitude:m |
Steam flow:kg/h |
steam pressure:MPa |
Steam temperature:?? |
Pipe diameter:mm |
Recommended flow rate of steam pipe | |||
(Note: When the pipe diameter is small, the pressure is low, or the viscosity is large, the flow rate is smaller.) | |||
Type of fluid | Type of pipe | Flow rate w(m/s) | |
superheated steam | d<100 | 20~40 | |
d=100~200 | 30~50 | ||
d>200 | 40~60 | ||
Reheat steam | Low temperature reheat steam pipeline | 30~50 | |
High temperature reheat steam pipeline | 50~70 | ||
Saturated Vapor | d<100 | 15~30 | |
d=100~200 | 25~35 | ||
d>200 | 30~40 | ||
steam | Extraction pipe | 30~50 | |
Steam pipeline to desuperheater | 60~90 | ||
Secondary steam utilization pipeline | 15~30 | ||
???? | Discharge from pressure vessel | 80 | |
Discharge from non-pressure container | 15~30 | ||
Discharge from the safety valve | 200~400 | ||
Compressor intake pipe | ~10 | ||
Compressor air pipe | ~20 | ||
General pipeline | d<=50 | <=8 | |
d>=70 | <=15 |
Water flow:kg/h |
Pipe diameter:mm |
Recommended flow rate of water pipe | |||
(Note: When the pipe diameter is small, the pressure is low, or the viscosity is large, the flow rate is smaller.) | |||
Type of fluid | Type of pipe | Flow rate w(m/s) | |
Boiler feed water | Centrifugal pump suction pipe | d<250 | 1~2 |
d>250 | 1.5~2.5 | ||
Centrifugal pump outlet pipe | 2~4 | ||
Reciprocating pump suction pipe | <=1 | ||
Reciprocating pump outlet pipe | 1~3 | ||
Water supply main | 1.5~3 | ||
High and medium pressure boiler main water supply pipeline | 2~3 | ||
Main feed water pipeline of ultra-high pressure boiler | 3~5 | ||
Condensate | Condensate pump suction pipe | 0.5~1 | |
Condensate pump outlet pipe | 1~2 | ||
Gravity condensate pipe | <0.5 | ||
Sheung Shui | Upper water pipe, flushing water pipe (pressure) | 1.5~3 | |
Soften water pipe, backwash water pipe (pressure) | 1.5~3 | ||
Backwash water pipe (self-flowing), overflow water pipe | 0.5~1 | ||
brine | Brine pipe | 1~2 | |
Cooling water | Cold water pipe | 1.5~2.5 | |
Hot water pipe (pressure type) | 1~1.5 | ||
Heating network circulating water | Water supply and return pipe (external network) | 0.5~3 |
Standard flue gas volume:Nm3/h |
Flue gas temperature:℃ |
Pipe diameter:mm |
Recommended chimney diameter | ||||||||||||||
Heat load | Million kcal | 30 | 60 | 90 | 120 | 180 | 240 | 300 | 360 | 480 | 600 | 720 | 900 | 1200 |
MW | 0.35 | 0.7 | 1.05 | 1.4 | 2.1 | 2.8 | 3.5 | 4.2 | 5.6 | 7.0 | 8.4 | 10.5 | 14 | |
tonnage | t/h | 0.5 | 1 | 1.5 | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 20 |
Chimney diameter | Mm | 200 | 255 | 300 | 350 | 400 | 500 | 550 | 600 | 650 | 750 | 800 | 900 | 1000 |
Note: The above data are only recommended values. When the horizontal flue is longer and there are many elbows, the flue gas resistance needs to be rechecked. |
Recommended flow rate of flue gas pipe | |||
(Note: When the pipe diameter is small, the pressure is low, or the viscosity is high, the flow rate is smaller.) | |||
Type of fluid | Type of pipe | Flow rate w(m/s) | |
Smoke | Naturally ventilated flue | Brick or concrete | 3~5 |
Made of metal | 8~10 | ||
Mechanical ventilation flue | Brick or concrete | 6~8 | |
Made of metal | 10~15 |
Standard air volume:Nm3/h |
Flue gas temperature:?? |
Pipe diameter:mm |
Recommended flow rate of inlet duct | |||
(Note: When the pipe diameter is small, the pressure is low, or the viscosity is high, the flow rate is smaller.) | |||
Type of fluid | Type of pipe | Flow rate w(m/s) | |
Boiler intake | Wind tunnel | Brick or concrete | 4~8 |
Made of metal | 10~15 |
Compressed air flow:m3/h |
Compressed air pipe diameter:mm |
Recommended flow rate of compressed air pipeline | |||
(Note: When the pipe diameter is small, the pressure is low, or the viscosity is large, the flow rate is smaller.) | |||
Type of fluid | Type of pipe | Flow rate w(m/s) | |
Compressed air | Compressor intake pipe | ??10 | |
Compressor air pipe | ~20 | ||
General pipeline | d??50 | <=8 | |
d>=70 | <=15 |
Saturated steam temperature:℃ |
Saturated steam temperature:MPa |
Water temperature℃ |
Water pressureMPa |
Water vapor temperature:?? |
Water vapor pressure:MPa |
Fuel type: |
Fuel price:¥ |
Hot water temperature:℃ |
Cold water temperature:℃ |
Overall efficiency:% |
Fuel type: |
Fuel price:yuan |
steam pressure:MPa |
Steam temperature:℃ |
Water temperature:℃ |
Overall efficiency:% |
Number of wines: |
Guest room bath |
restaurant |
laundry room |
Staff kitchen |
Number of guests: |
Ward bathing | |
Patient kitchen | |
laundry room | |
Staff kitchen | |
Outpatient | Number of people per unit time: |
number of beds: |
Amount of steam:t/h |
Fuel type |
Fuel low calorific value:kcal/kg(kcal/Nm3) |
Fuel consumption:kg/h(Nm3/h) |
Excess air coefficient: |