この 脱気装置のベント率計算機 helps determine the amount of non-condensable gases, primarily oxygen and carbon dioxide, that must be vented from feedwater in a deaerator system. Deaerators are used in 電力 plants, boiler systems, and industrial steam applications to remove dissolved gases from feedwater to prevent corrosion and improve efficiency.
計算すると、 vent rateオペレーターは次のことができます。
- Ensure the deaerator is functioning correctly.
- Optimize oxygen removal efficiency.
- Reduce corrosion-related maintenance costs.
- 改善する 長寿 and efficiency of boilers and steam systems.
Formula of Deaerator Vent Rate Calculator
この vent rate is determined by the amount of non-condensable gases removed from the feedwater using the following formula:
Vent Rate (kg/hr) = (Feedwater Flow × Oxygen Content) / Desired Oxygen Removal Efficiency
どこ：
- Feedwater Flow (kg/hr or lb/hr) = 質量流量 of the incoming water.
- Oxygen Content (kg/kg or ppm) = The dissolved oxygen content in the feedwater before deaeration.
- Desired Oxygen Removal Efficiency (%) = The fraction of oxygen to be remove, typically expressed as a percentage.
This formula helps determine how much gas needs to be vented to achieve the desired deaeration level in a given system.
Deaerator Vent Rate Reference Table
以下である 参照テーブル for common deaeration scenarios:
| Feedwater Flow (kg/hr) | Initial Oxygen Content (ppm) | Desired Removal Efficiency (%) | Required Vent Rate (kg/hr) |
|---|---|---|---|
| 10,000 | 8 | 99.5％ | 0.04 |
| 20,000 | 6 | 99.0％ | 0.12 |
| 30,000 | 7 | 99.5％ | 0.11 |
| 50,000 | 5 | 98.0％ | 0.25 |
| 100,000 | 4 | 99.8％ | 0.08 |
この表が提供するのは、 estimated vent rates to help engineers and boiler operators すぐに評価する deaerator performance.
Example of Deaerator Vent Rate Calculator
としましょう 発電所 is deaerating 50,000 kg/hr of feedwater、 そしてその initial oxygen content in the water is 6 ppm（parts per million）。 ターゲット oxygen removal efficiency is 99.5％.
- 変換 ppm to kg/kg:
- Since 1 ppm = 1 mg/L,
- 6 ppm = 6 mg/kg = 0.000006kg/kg.
- Apply the formula:Vent Rate = (50,000 kg/hr × 0.000006 kg/kg) / 0.995
Vent Rate = (0.3 kg/hr) / 0.995
Vent Rate ≈ 0.302 kg /時
これはつまり deaerator must vent 0.302 kg/hr of gases 達成するために desired oxygen removal efficiency.
最も一般的な FAQ
Venting is essential to remove dissolved oxygen and carbon dioxide from feedwater, which helps 腐食を防ぐ in boilers and steam turbines.
If the vent rate is too low, oxygen may not be fully remove、につながります corrosion in the steam system and reducing boiler lifespan.
Yes, excessive venting can waste energy and steam, reducing the efficiency of the deaerator system and increasing operating costs.