Structure:

The exhaust steam suction recovery device is composed of a suction jet pump and a recovery device body. The suction jet pump is composed of a waste steam ejection device, a mixing chamber, and a follow-up heat exchange system. The recovery device body is composed of cavitation elimination device, decontamination device, water collection container, disc valve, manual control valve, high-temperature water transfer pump and control system.

Scope of application:

The exhaust steam suction recovery device is suitable for the recovery of the exhaust low-pressure exhaust steam of the heating equipment of factories and mining enterprises, the high-temperature and low-pressure exhaust steam of the boiler and the exhaust steam of the deaerator, the exhaust steam of the turbine and the exhaust steam of condensate, and the pure normal temperature water is used to pump the low-pressure exhaust steam or the high-temperature and low-pressure exhaust steam of the boiler and the boiler is continuously discharged, and the high-temperature pure water is formed after full heat exchange for production and life. It can recover 0.02~1.0Mpa waste steam and low-temperature and low-pressure steam or secondary flash steam, and the temperature of the output hot water is about 60~90 °C.

Control scheme:

The start and stop of the pump in the exhaust steam suction recovery device is mainly controlled by the liquid level signal, and the system implements centralized control. The liquid level signal is 4~20mA for the two-wire system, and the liquid level signal controls the frequency conversion operation status of the pump and the opening and closing of the regulating valve through the control cabinet system. The temperature signal is platinum resistance, and the temperature signal enters the PLC of the control cabinet system to control the opening and closing of the regulating valve on the power water pipeline and the size of the opening.

Advantages of the device:

1. The pressureless exhaust steam suction recovery device has a unique power suction device, which uses the venturi principle to form a relative "negative pressure area" at the inlet of the exhaust steam of the equipment, which is conducive to the discharge of the exhaust steam and does not affect the production process of the exhaust steam.

2. Silent and vibration-free The special internal structure setting effectively eliminates the "water hammer phenomenon" generated when the steam is mixed, and ensures that the operation of the exhaust steam recovery device does not cause vibration or harsh sound.

3. "Zero emission" of exhaust steam Through efficient suction technology, the exhaust steam generated by the process is recovered to achieve "zero emission", eliminate thermal pollution, achieve energy conservation and emission reduction, and clean and civilized production.

4. No cavitation: Using the dynamic two-flow technology and the principle of micro-supercooling, the cavitation phenomenon caused by the pump when transporting high-temperature water is eliminated and the equipment can deliver high-temperature water to a specific location.

5. Unattended, maintenance-free Intelligent automatic control of exhaust steam recovery device realizes unattended automatic operation and has maintenance-free function.

On-site comparison diagram of a petrochemical enterprise before and after the application of exhaust steam recovery device