MVR Pillow Plate Heat Exchangers

High efficient Plate heat exchanger in MVR /Mechanical Vapor Recompression Falling Film Evaporator

Industrial mechanical vapour recompression MVR

A heat pump uses energy to transfer heat from a lower temperature source to a higher temperature demand using additional energy. For industrial heat pumps, the heat source is process waste heat.

Mechanical vapour recompression (MVR) is an open heat pump system in which the pressure and temperature of the vapour, together with the corresponding saturation temperature, are increased by means of compression. Steam recompression is a specific variation of MVR. Low-pressure steam exhaust from industrial operations, such as evaporators or cookers, is usually vented to the atmosphere or condensed in a cooling tower, while other plant operations on the same site may require intermediate-pressure steam. Instead of expanding high pressure steam across a throttling valve to meet these needs, low-pressure waste steam can be mechanically compressed to a higher pressure so that it can be reused. Steam recompression relies upon a mechanical compressor to increase the temperature of the latent heat in steam to render it usable for process duties. The advantage lies in the fact that the required compression energy is very small compared to the amount of latent heat present in the recycled steam.

The energetic performance of steam recompression is expressed in the coefficient of performance (COP). The COP gives the ratio of the net recovered heat and the energy used by the compressor. In this case, the net heat is the steam production including the additional steam yield by water injection. Typical economical and energy-efficient applications have a minimum COP of 3.5. Some applications of MVR have a COP of 10 or even higher.

The key elements for a high COP are the following:

A low ratio of the absolute steam pressures. A guideline for the maximum ratio is 6, but in daily practice the ratio is about 3.

A minimum capacity. A guideline is a minimum of one tonne of steam per hour.Water injection after compression.

Characteristics

Energy saving: high thermal efficiency, energy saving, lower energy consumption, the energy consumption of

1t water evaporation is about 1/5 to 1/3 of conventional evaporator.

Environmental protection: completely get rid of dependence on steam boiler, the mechanical vapor recompression evaporator could be start-up by electricity.Without boiler, don't need to burn coal, a small amount of steam, a small amount of cooling water.

The operation cost is low: due to low energy consumption, the operating cost of the whole evaporator is only 1/3 to 1/2 of traditional evaporator.

Small area: the system has high dense mechanical structure, so the cover area is less than 50% of traditional evaporator.

Mild evaporation: low temperature evaporation, the heat transfer temperature difference is low, so the system is not easy to scale.

High degree of automation: high degree of automation, simple operation, easy to operate.

Mechanical Vapor Recompression MVR Evaporator consumption compared with traditional evaporation equipment calculated by evaporating 1T water

AREAS OF APPLICATION

Mechanical vapor recompression was initially used almost exclusively in the dairy industry. In the following years, its areas of application were expanded, and now include the dairy industry, brewing industry, sugar industry, saline industry, pulp industry, chemical industry, alcohol industry etc.

Principle flow chart

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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.