Non-stop smoke in the heat plant.

The exit of the condensed turbine in the condensed tank at absolute pressure is only a few kPa. The air enters through the connector, the deflector and the entrance door, along with the water-soluble gas, accumulates in the low-voltage zone; if not sucked out, this gas surrounds the heat exchange tube, increasing the pressure of the condensation and reducing the capacity of the turbine.

Two modes of work.

• Starting of Hogging:pulling the vacuum from atmospheric pressure to working level before evaporation, requires large flow in a short period of time.
• and Holding:Smoking small but constant amounts of water.

The fluid temperature determines the efficiency.

Gas-mixed into the hot and moist pump so that the sealing water heats up. When the water temperature approaches the saturation temperature in line with the suction pressure, the useful gas flow decreases sharply. So the thermal vacuum system typically uses a closed circuit with a cooler, and some designs place a preliminary shut-off tank right before the pump to collect steam.

Choose the capacity.

Maintaining suction capacity is calculated according to the permissible amount of gas injected by the shutdown tank, usually referring to the Heat Exchange Institute (HEI) standard for the shutdown vacuum system, then multiplying the backup factor.

Operated

Monitor the shutdown pressure, water temperature and engine current. If the shutdown pressure increases slowly while the pump runs normally, it is recommended to track the leakage point with helium gas or foam testing instead of installing an additional pump.