Centralized exhaust system for large-sized pump station

Abstract

The invention relates to a centralized exhaust system for a large-sized pump station. The centralized exhaust system for the large-sized pump station comprises an upward sucking type circulating exhaust self-suction device, a plurality of centrifugal water pumps and a plurality of exhaust water blocking devices; the upward sucking type circulating exhaust self-suction device is connected with one centrifugal water pump; every exhaust water blocking device is connected with one centrifugal water pump; water outlet pipes of the centrifugal water pumps are connected with a pump house main water conveying pipeline; one port of the exhaust water blocking devices is connected with the water outlet pipes of the centrifugal water pumps; the other port of the exhaust water blocking devices is connected with an air inlet pipe of the upward sucking type circulating exhaust self-suction device through an air pipe. According to the centralized exhaust system for the large-sized pump station, air in the centrifugal water pump pipelines are sucked into an ejector and then sweeps the lower chamber through ejection water flows in a mixed mode due to the differential pressure of an upper chamber and a lower chamber of the upward sucking type circulating exhaust self-suction device, water is vertically and repeatedly recycled inside the circulating exhaust self-suction device due to continuous rotation of the water pumps, and finally air inside the system is performed on air-water separation in the upper chamber and is discharged into the nature through a self-control exhaust device.

Description

technical field [0001] The invention relates to a centralized exhaust system of a large pumping station. Background technique [0002] Since the advent of synchronous self-priming pumps, many underground pump rooms have been eliminated one after another, completely eradicating the trouble of flooded pump rooms, and also making the pumps more convenient to maintain and use. Therefore, synchronous self-priming pumps have been widely used in recent years. However, with the continuous development of production technology, higher requirements have been put forward for production water supply. Some water places must ensure water supply pressure and flow at any time, otherwise it will affect product quality and even cause production accidents. However, the synchronous self-priming pump has air in the water at the initial stage of pumping, resulting in low pump discharge pressure and difficulty in grid connection; the other is that the self-priming device is large in size and uses...

AI Technical Summary

Problems solved by technology

Some water places must ensure water supply pressure and flow at any time, otherwise it will affect product quality and even cause production accidents

However, the synchronous self-priming pump has air in the water at the initial stage of pumping, resulting in low pump discharge pressure and difficulty in grid connection; the other is that the self-priming device is large in size and uses too much material, which makes its cost too high; and sometimes it is affected by the installation site. limits

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