Multi Effect Thermal Vapour Recompression Evaporator

Thermal vapour recompression evaporation widely used for Evaporation Consentration and crystallization

Thermal Vapor Recompression (TVR)

A method to reduce the energy consumption of a steam heated evaporator system.

Uses high pressure steam as the motive fluid to a steam ejector,to entrain recycled lower pressure steam and discharge the combined steam at a more useful intermediate pressure.

The vapor compression cycle rlies on the condensation temperature of the lower pressure steam increasing with the increase in pressure.

Scope of application:

Thermal steam recompression evaporation crystallizer is widely used in food, starch, beverage, pharmaceutical, pesticide, chemical and other industries, as well as an evaporation and concentration equipment in the fields of high-concentration wastewater in environmental water treatment projects. It is especially suitable for the evaporation, concentration and crystallization of inorganic salts such as sodium chloride, caustic soda and concentrated solutions containing organic solvents.

System composition:

Preheater, steam compressor, evaporator, separator, circulating pump, electrical control system, pipeline connection system, steel frame platform and other systems.

When thermal steam is recompressed, according to the heat pump principle, the steam from the boiling chamber is compressed to a higher pressure in the heating chamber; that is, energy is added to the steam. Since the saturated steam temperature corresponding to the pressure in the heating chamber is higher, the steam can be reused for heating. For this purpose, a steam jet compressor is used. They operate according to the principle of jet pumps, have no moving parts, are simple and effective in design, and ensure the highest working reliability.

Using a thermal vapor compressor has the same steam/energy saving effect as adding an effect evaporator. The operation of the thermal vapor compressor requires a certain amount of live steam, the so-called motive steam. These motive steam must be sent to the next effect, or sent to the condenser as residual steam. The remaining energy contained in the residual steam is approximately equivalent to the energy provided by the motive steam.

Part of the secondary steam from the separator is driven by the high-pressure working steam and enters the ejector to mix, raise the pressure, and then enter the heating chamber as heating steam to heat the liquid. The other part enters the condenser and is discharged after condensation. The heating steam is condensed into water in the heating chamber and discharged. The solution in the tube is evaporated and concentrated under the heating of the heating steam, and discharged after reaching the requirements.

Steam jet heat pump has the characteristics of simple structure, stable operation and low price. Using a steam jet heat pump, the efficiency is equivalent to adding an effect evaporator.

Characteristics

Only a fraction of the evaporation energy has to be used in the form of live steam.

Low investment costs.

Retrofitting in existing plants is possible.

Suitable for various applications.

Variants

Increase in the number of stages to reduce steam consumption.

With or without salt separation.

Different preheating concepts.

Condensation of surplus vapour in mixing- or surface condensers.

Working principle drawing

Our workshop and client's installation

Jiangsu Hanpu Mechanical Technology Co., Ltd. is a project engineering company jointly established by Jiangsu Zhongyi Environmental Technology Co., Ltd., FERREO A/S in Denmark, Shanghai Jiaotong University and Nanjing Kingreat Machinery Co., Ltd. The company's production base is located in the Huangqiao Industrial Zone of Taixing, covering an area of 300 acres. The companies involved are in the industry of new material, new energy, medicine, chemical, environmental protection, food, and beverage, etc.

The company has a national functional office and facilities as a scientific research bureau. The research center now has 5 doctor tutors, 8 professional engineers, 11 senior engineers, 42 engineers and 68 assistant engineers making it a leading specialized research bureau.

The company has various kinds of general (special) machinery devices including 480 sets and are the most developed working devices in the world such as: Toshiba CNC boring and milling machine imported from Japan, German Schiess CNC turning processing center, CNC fine plasma cutting machine imported from Germany, Laser cutting machine, CNC folding machine, CNC wire cutting and CNC shearing machine, etc.

The company's main projects include but are not limited to: MVR evaporation system, powder washing salt and vacuum salt production project, oil tank sludge cleaning project, landfill leachate treatment project, plant/animal oil processing production line, urban wastewater treatment project, various wastewater treatment projects, and CBD oil extraction production line. Technical support and transfer of API product technology package. The main products are centrifuge series, multi-effect and MVR evaporation and crystallization equipment, laser welding heat transfer board, lithium battery material mixing equipment, pressure vessel and titanium, zirconium, nickel, and other non-standard special equipment.

The company's sales network throughout the whole world, with a domestic sales market share of 50%, and exported to the United States, Canada, Germany, Spain, France, Switzerland, Sweden, Denmark, Australia, Brazil, Argentina, Chile, Colombia, Russia, Ukraine, Poland, Uzbekistan, Indonesia, Vietnam, Singapore, Malaysia, India, Japan, South Korea, Iran, South Africa, Nigeria, and Rwanda.

The company is an internationally competitive engineering company that integrates technical consulting, design, procurement, construction, installation and driving into one, providing engineering EPC general contract, project management, engineering supervision and other comprehensive, full-process services. The company is Committed to be the first and world-renowned technology and technology engineering company in Asia, providing cutting-edge technology and one-stop solutions for the world's industries.