Roots steam compressor
MVR is the abbreviation of mechanical vapor recompression. MVR is an energy-saving technology that can reuse the energy of secondary steam generated by itself, so as to reduce the demand for external energy.
The principle is to compress the secondary steam produced by the evaporator through the compressor, so that its pressure and temperature rise, and the enthalpy of the steam will also increase. The steam with increased enthalpy will be sent to the heating chamber of the evaporator as heating steam to keep the material liquid boiling, while the heated steam itself will be condensed into water. In this way, the latent heat in the secondary steam is fully utilized and the purpose of energy saving is achieved.
In recent years, this technology has been applied to chemical industry, pharmaceutical industry, papermaking industry, sewage treatment industry, seawater desalination industry and so on. Its working process is to compress the low-grade secondary steam through the compressor, thus increasing the temperature and pressure. The heat enthalpy increases and then enters the heat exchanger for heating and condensing to make full use of the latent heat of steam. In addition to the need of fresh steam for the start-up of the system, only a small amount of fresh steam is needed during the operation of the whole system
Introduction to steam compressor (roots blower)
MVR series Roots steam compressor developed and designed by our company has the characteristics of high efficiency, energy saving and stable operation. This series of products can be widely used in evaporation crystallization and evaporation concentration industry of MVR system.
Technical parameters of steam compressor (roots blower)
Flow rate: 3.8-216m3 / min; pressure difference between inlet and outlet: 65? 98kpa; evaporation capacity: 0.15-5.2t/h.
Main components of steam compressor (roots blower)
MVR steam compressor includes: main engine, motor, inlet and outlet bellows compensator, water inlet sealing water joint, water outlet nozzle (T-type tuyere), exciter drive device, equipment, anchor bolt (or shock absorber) lubricant.
The circulation part includes a shell, a wall plate, an impeller, an inlet sealing water connecting pipe and an air outlet connecting pipe.
Note: the minimum inlet temperature of the fan is 80 degrees. It is suggested that starting from 85 ℃, the temperature rises to 20 ℃, the pressure ratio (inlet and outlet) is 2, and the pressure difference is 98kpa.
The functions of steam compressor (roots blower) are as follows:
First: the high strength steam compressor is made of heavy frame and integral cast iron, which is generally made of 304 stainless steel casting, and is precision processed by CNC, and has accurate installation.
Second: all parts are processed in the company, all processed by the machining center, dimensional tolerance is more accurate, bearing position and wallboard are processed in one piece. To ensure the accurate positioning of the bearing.
Third: Roots blower impeller is made of high-grade cast iron (or stainless steel, titanium), processed by high-precision four axis machining, precision processing, accurate size and fixed in the steel on the shaft.
Fourth: Roots blower (compressor) bearing is imported from Japan NSK bearing or Sweden SKF Bearing. Under the condition of continuous operation, the service life of steam compressor is 26000 hours. Normal and good maintenance shall be carried out.
Fifth: the alloy steel precision timing gear is permanently fixed on the shaft, and the synchronous gear is lubricated by gear oil splash in the fuel tank.
Sixth: the steam compressor adopts special double mechanical water seal system, which makes the steam compressor run completely without leakage.
Seventh: the use of double-sided lubrication tank lubrication, improve the service life of steam compressor bearings and gears, avoid the shortcomings of traditional grease lubrication.
Eighth: Roots blower internal comprehensive anti-corrosion treatment, the material is made of integral cast iron (duplex stainless steel or titanium). The inner cavity of cast iron compressor is coated with special layer. The anti-corrosion effect of the special coating is slightly lower than that of titanium, and the quality of the coating is higher than that of titanium.
The temperature control of the steam compressor is to control the outlet temperature by using the nozzle spray water at the inlet.
Tenth: the roots blower of steam compressor is equipped with frequency conversion motor, so the air volume can be adjusted according to the actual treatment capacity.
Summary: the series of Hongguang steam compression roots blowers are widely used in chemical, pharmaceutical, food, wine, wine, beverage, electroplating, coating production, hospital and pesticide, metal processing, papermaking and crude oil. Production and other industries.
Roots steam compressor: http://theoxfordjazz.com/lc-yt/25.html
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