Saudi Arabia MVR evaporation concentration and crystallization system

Forced circulation evaporation concentration and crystallization: The feed liquid enters the evaporator after being preheated by the feed pump through the non-condensable gas preheater and condensate preheater. The feed liquid in the heat exchanger tube of the evaporator is heated by the steam in the shell process and enters the separator for gas-liquid separation, and continuously circulates between the evaporator and the separator under the action of the circulating pump. The concentrated liquid is discharged from the bottom of the separator, and the feed liquid that does not reach the concentration enters the evaporator to continue to circulate, and the feed liquid that reaches the concentration is discharged from the system; the secondary steam enters the steam compressor from the top of the separator to compress, increase the temperature and enthalpy, and then enters the shell side of the evaporator as a heat source to heat the feed liquid. The condensed water and non-condensable gas are discharged from the system after heat exchange between the preheater and the feed liquid.

1. Less occupied area, less public works supporting equipment.

MVR system saves the boiler, pipe network, cooling tower and other peripheral equipment, compact structure layout, covers an area of only 50% of the traditional evaporator.

2. Reduce the chance of pipe blockage.

Traditional evaporation systems are mostly multi-effect evaporation, with large temperature span before and after, and long residence time of feed liquid in the system pipeline, which is easy to cause pipe blockage. MVR system has compact structure, short material flow, low heating temperature and small heat exchange temperature difference, so the probability of pipe blockage is greatly reduced.

3. Suitable for evaporation crystallization of heat sensitive materials.

MVR evaporation technology can achieve low-temperature evaporation at about 40 ℃, and minimize the damage to some heat-sensitive materials that are easily denatured at high temperature, thus ensuring the quality of crystalline materials.

4. Easy to control.

Compared with the traditional multi-effect evaporation system, the equipment required for the MVR system is less, the control point is less, and the unattended automatic control can be realized.

5. Cleaning

The MVR system is easy to clean, and can be added in the design and construction of the cleaning system, and the system can be washed and cleaned thoroughly when the machine is stopped.

1, with independent research and development design and manufacture of the system core equipment

The core equipment "steam compressor".

The core equipment of MVR system, single-stage high-speed centrifugal steam compressor and roots steam compressor are developed by our company on the basis of introducing the world's advanced technology, combined with the characteristics of MVR system and many years of production and manufacturing experience. The product is designed in accordance with our company's many years of thermodynamic calculation experience and research results in aerodynamics, using special impeller type line, high temperature resistant structure design, special and reliable sealing structure, corresponding to different material liquid working conditions of anti-corrosion means, to ensure the stable and reliable operation of the steam compressor in the MVR system.

According to the physical properties of the feed liquid, the size of the evaporation capacity and the measured data, we will select the suitable steam compressor type for you to apply to the MVR system on the basis of ensuring the optimization of the scheme.

B Series Single Stage High Speed Centrifugal Steam Compressor

Product main features:

1. The impeller type line is advanced, the efficiency is high, and the maximum saturation temperature rise of the single machine can reach 20 ℃;

2. Wide flow adjustment range, applicable to a variety of conditions;

3. Compressor compact structure, small size;

4. The equipment has low vibration, high reliability and low overall noise;

5. The compressor has advanced and reasonable structure, few wearing parts, and convenient installation, operation and maintenance.

Product main features:

1. Air volume and pressure ratio coverage are large, and the product has a wide range of applications.

2. The compressor adopts frequency conversion control mode;

3. The impeller adopts a new type of line, good sealing, high efficiency and energy saving, and the maximum saturation temperature rise of a single machine can reach 25 ℃;

4. The structure separates the air cavity from the oil cavity to ensure that the lubricating oil and water vapor do not mix during operation;

5. The shaft seal adopts the special double-end mechanical seal form;

6 years of design experience, as well as rigorous calculation and high-precision production and processing, to ensure that the casing of the two impeller in the high temperature operation of the gap, as well as the overall operation of the compressor reliability and stability.

(2) Water ring vacuum pump

In the MVR system engineering, our company mainly uses LRA and LRC series of water ring pumps. LRA(C) series water ring pump is a product developed by our company with advanced technology of imported products. The product is not only energy efficient, but also very suitable for long-term, continuous operation. This series of pumps is a single-stage structure, which has the advantages of simple structure, convenient maintenance, reliable operation, high efficiency and energy saving.

(3) Electrical equipment and automatic control system

The automatic control system specially tailored by the company for each MVR system has the characteristics of high degree of automation, stable start-up and operation, fast interlocking response speed, high efficiency and energy saving, convenient maintenance, etc. It is mainly composed of PLC programmable controller, upper computer, frequency converter, various sensor instruments and various actuators, which can detect the operation of the system online in real time, with automatic interlock control, overload protection, short circuit protection, overrun alarm, shutdown and other functions.

2. Cooperate with qualified professional construction and installation team

Our company has long-term cooperation with professional construction team with qualification of frame, mechanical and electrical equipment and electrical installation engineering. It lays the foundation for the completion of the project framework construction with high standards and high efficiency, and also ensures the robustness of the project framework, the safety of electrical equipment operation and staff operation, and the stability of system operation.

3. nationwide sales service network and efficient after-sales service

The company has trained and guided the commissioning of all MVR engineering projects by professionals. There are more than 50 sales offices and service outlets across the country, and more than a dozen agents abroad, which can provide users with timely pre-sales, sales and after-sales services, so that you can use Shandong Zhanggu products without any worries. Ensure the continuous and smooth operation of the system and the interests of customers.