MVR evaporator is a relatively specific evaporator equipment. At present, it is widely used and has been used in many fields. When using it, you need to understand not only its operation method, but also its performance. Today, I will introduce the functions of the product in detail for you.
1. The equipment evaporates materials at relatively low temperature, with the evaporation temperature between 35 ° C and 100 ° C, and will not produce bubbles. The material and liquid are very uniform. In addition, the material will not be exhausted or coking. In addition, the heating deformation of the material is also very small.
2. The price of equipment is generally high, especially the mechanical compression type MVR evaporator, which is about twice the price of multi-effect evaporator, but for new projects, MVR evaporator is more suitable. And the cost can be recovered in a short time. For example, when the running time exceeds 300 days, the cost can be recovered. Compared with its purchase price, this aspect is relatively affordable. For the mechanical compression type MVR evaporator, it can replace the original multi-effect evaporator, and has strong energy saving and environmental protection advantages. Generally, the cost can be recovered after more than 500 days of use
3. The energy consumption of the equipment is electrical energy. For every ton of water evaporated, it will consume 15 to 27 degrees of water. If it is a material with low boiling point, the electric energy used may be less than 20 degrees. Compared with the traditional multi-effect evaporator, this is a huge advantage, which can save more than 60% of energy.
It can be seen that this product is an energy-saving and environment-friendly equipment. MVR evaporator will not produce pollution when used, and it is relatively energy-saving, which is much better than using traditional gas-consuming products; It can also operate continuously without failure; In addition, the correct product type must be selected when purchasing.
MVR evaporator is a new type of energy-saving evaporation equipment mainly used in pharmaceutical industry. The equipment uses low temperature and low pressure steam technology and clean energy to generate steam as energy to separate water in the medium. It is an advanced evaporation technology. It is an upgraded product to replace the traditional evaporator.
MVR evaporator is different from ordinary single-effect falling film evaporator or multi-effect falling film evaporator. MVR is a single evaporator with integrated multi-effect falling film evaporator. When the required concentration cannot be reached after passing through the effector at one time, the product is pumped to the upper part of the effector through the vacuum pump at the bottom of the effector through the external pipe of the effector after leaving, and then passes through the effector again and again through this repeated channel until the effector reaches the required concentration. The inside of the effect body is a row of thin tubes, with products inside and steam outside. In the process of product flow from top to bottom, the heating area is increased due to the increase in the area of MVR evaporator tubes, and the product flows in the form of film. A negative pressure is formed in the MVR evaporator, which reduces the boiling point of water in the product to achieve concentration. The evaporation temperature of the product is about 60 ℃.
The condensed water generated after the product is heated and evaporated by the effect body, part of the steam and the residual steam after the effect body is heated are separated by the separator. Condensate flows out from the lower part of the separator to preheat the products entering the effect body. The steam is pressurized through the fan supercharger (the higher the steam pressure, the higher the temperature), and then the pressurized steam is combined through the pipe, and the steam passes through the effect body again.
When MVR evaporator is started, some steam is required for preheating. After normal operation, the amount of steam required will be greatly reduced. During the process of pressurizing the secondary steam by the fan supercharger, the electric energy is converted into the heat energy of the steam, so the steam required for the MVR evaporator to operate is reduced, and the electricity required is greatly increased.
During the whole flow process of the effect, the temperature of the product is always around 60 ℃, and the temperature difference between the heating steam and the product is also around 5-8 ℃. The smaller the temperature difference between the product and the heating medium, the better the protection of the product. When the product concentration is about 50%, only MVR evaporator can be completed. When the required concentration is 60%, flash equipment is required.
