Control system increasing utilizing rate of vacuum pump and control method

Abstract

The invention discloses a control system increasing the utilizing rate of a vacuum pump. A vacuum storing tank and the vacuum pump are included, and a control circuit is further included; a cooling water tank is arranged on one side of the vacuum pump; an overflow pipe is arranged on one side of the cooling water tank; the position, located on one side of the overflow pipe, of the cooling water tank is provided with a water returning pipe connected to the vacuum pump; the side, close to the vacuum pump, of the cooling water tank is provided with a water supplementing pipe with a valve; the cooling water tank is located at the upper end of the water supplementing pipe and is provided with a water supplying pipe connected to the vacuum pump; the vacuum pump is connected with a water outflowpipe reaching the vacuum storing tank; the water outflow pipe is provided with a vacuum electromagnetic valve, and is further provided with a pressure transmitter; a bottom discharging pipe is furtherarranged on one side of the cooling water tank; in the whole work process, the shutdown time of the vacuum pump occupies 60% or above, working is performed for 24 hours every day, the vacuum pump stops working in nearly 15 hours, the energy consumption of the vacuum pump is greatly lowered, the running water temperature of the vacuum pump is also lowered, water supplementing can be reduced, 0.08MPa can be achieved very easily, and the service life of the vacuum pump is prolonged.

Description

technical field [0001] The invention relates to the field of vacuum pump equipment, in particular to a control system and a control method for improving the utilization rate of the vacuum pump. Background technique [0002] When preparing products on the production line, it is necessary to remove the air in the tank and remove oxygen. Therefore, several cycles of vacuuming-nitrogen filling-re-vacuum-refilling nitrogen are used. A large amount of vacuum is required here, and the configuration time accounts for about 40%. The vacuum pump runs non-stop all the time, wasting a lot of electricity as a result. High cooling water temperature will shorten the life of the vacuum pump, and the vacuum degree can only be maintained at -0.06MPa. The solution was replaced several times, each pumping to -0.06MPa. After these several conversions, the preparation took a long time, the efficiency was low, the drug preparation time was long, and the risk increased. Before the product is fill...

AI Technical Summary

Problems solved by technology

Vacuum pumps run all the time, wasting a lot of electricity as a result

High cooling water temperature will shorten the life of the vacuum pump, and the vacuum degree can only be maintained at -0.06MPa

The liquid preparation was replaced several times, each pumping to -0.06MPa. After these several conversions, the preparation took a long time, the efficiency was low, the drug preparation time was long, and the risk increased

Before the product is filled with nitrogen in the inner space of the bottle, the rubber stopper needs to be sucked up. Compared with the closed space, the last stopper is put on. The vacuum required here is less, but the vacuum must not be less than -0.06MPa, and a separate vacuum pump is required. In the open state, electric energy is still wasted, the cooling water temperature of the vacuum pump is high, and the vacuum degree is reduced, which shortens the life of the vacuum pump

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