Vacuum equipment capacity type gravity flow continuous sewage draining system and sewage draining method thereof

Abstract

The invention discloses a vacuum equipment capacity type gravity flow continuous sewage draining system and a sewage draining method thereof. The vacuum equipment capacity type gravity flow continuoussewage draining system and the sewage draining method thereof solve the problem that it is difficult for vacuum equipment to drain sewage. The vacuum equipment capacity type gravity flow continuous sewage draining system comprises the vacuum equipment (1), a first sewage draining sealed container(16) and a second sewage draining sealed container(29), the vacuum equipment is provided with a sewagereceiving header (4), and sewage draining pipes are connected to a drainage point in an atmosphere pressure environment through sewage draining containers and is used for draining the sewage in the sewage draining containers to the drainage point; vacuum pumping pipes are connected to a vacuum pumping header through the sewage draining containers and are used for building vacuum in the sewage draining containers; vacuum damage pipes are connected to the atmosphere through the sewage draining containers and are used for damaging the vacuum in the sewage draining containers. Each sewage draining container is provided with electric connecting point flowmeters in a high liquid point and a low liquid point separately, switching of a four-way pipe valve is controlled through the height of the liquid level, so that one sewage draining container receives equipment sewage in a vacuum state, the other sewage draining container drains the equipment sewage which is in the draining container to the atmosphere pressure environment in the atmosphere pressure state, and continuous and automatic sewage drainage of the vacuum equipment is achieved.

Description

technical field [0001] The invention relates to a sewage discharge system for vacuum equipment, in particular to a sewage discharge system and a sewage discharge method capable of discharging residual or waste liquid from equipment working under atmospheric pressure to atmospheric pressure. Background technique [0002] When the vacuum equipment is put into operation or operation, the liquid that does not meet the quality requirements inside the equipment needs to be discharged to ensure the normal operation of the equipment. However, since the internal pressure of the vacuum equipment is lower than the atmospheric pressure, in order to ensure the normal internal working pressure, the internal liquid cannot be discharged through the conventional self-flowing liquid drainage method, and special devices or operating means must be used to achieve it. At present, there are two main technical means: the first one is to add a centrifugal pump to the sewage pipeline of the vacuum e...

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Problems solved by technology

[0003] The invention provides a vacuum equipment volumetric self-flowing continuous sewage discharge system and

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