EVP liquid ring vacuum pump can be used to assist the evaporation of liquid substances in the mixture. The evaporator is usually a packed tower. According to the actual use environment, EVP vacuum pump can be made of standard materials or stainless steel. Vacuum evaporators can be used in many occasions, such as milk evaporators in milk processing plants, concentrated liquid evaporators in pulp mills, crystallization devices in chemical plants, and tray evaporators in sugar mills.
DLV series double stage water ring vacuum pump is a double stage water ring vacuum pump developed and designed by Shanghai EVP Vacuum Technology Co., Ltd. on the basis of SIHI LPH series. This series of double stage water ring pump has applied for patent. DLV series two stage water ring pump is designed with two-stage compression process, which can pump stably in high vacuum range or maintain a high vacuum degree in large pumping rate range.
Two stage water ring vacuum pump and single stage water ring vacuum pump are developed for different use of K meter. The single-stage water ring vacuum pump has the advantages of low pumping rate and high power consumption in high vacuum (less than 20000 b), while the two-stage water ring vacuum pump can obtain higher pumping speed in high vacuum, Or maintain a high vacuum in a large range of pumping rate. In the high vacuum condition, the efficiency is 35% to 40% higher than that of the single-stage water ring vacuum pump, and the energy consumption is reduced accordingly. Therefore, the appropriate vacuum pump should be selected according to the use conditions in order to reduce energy consumption and economic operation.
Evaporator is an operation unit that uses heating method to heat the solution to boiling state, vaporize and remove part of the solvent, so as to improve the concentration of solute in the solvent. Evaporators are widely used in chemical industry, food industry and pharmaceutical industry; Vacuum evaporator is a kind of natural circulation evaporator operated in vacuum system. It is generally concentrated at low temperature under vacuum condition to ensure product quality. Therefore, a vacuum pump must be used to maintain the vacuum system. The inlet pressure of the vacuum system of the evaporator is generally required to be between 6-10kpa. The pumping speed of the single-stage water ring vacuum pump, including the single-stage water ring vacuum pump, is seriously attenuated. When the pumping speed is less than 5000-1000pb, it is extremely low and the power consumption is high. The pumping speed of the two-stage water ring vacuum pump is stable in this vacuum range, and the maximum pumping capacity can be achieved. Under the same energy consumption, the efficiency is increased by more than 30%.
The two-stage double ring vacuum pump produced by Shanghai EVP Vacuum Technology Co., Ltd. has a variety of materials for users to choose from, such as ordinary cast iron, stainless steel 304, stainless steel 316L, and even super dual phase steel or titanium.
In addition, Shanghai EVP Vacuum Technology Co., Ltd. can also design open cycle units or closed cycle units according to the needs of customers. See below pictures:
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