Oil-water separation system and method of dry vacuum pump under negative pressure state

Abstract

The invention discloses an oil-water separation system and method of a dry vacuum pump under a negative pressure state. The oil-water separation system comprises a main tank, an auxiliary tank, the dry vacuum pump and a control system. The control system is composed of a relay, a valve, a leakage protector and a main board. When oil and water enter the main tank after being filtered through a filter element, the oil and the water are circulated between the main tank and the auxiliary tank repeatedly, and finally enter the dry vacuum pump from the main tank. The effects of separating oil, waterand gas and removing oil and water are achieved through the arrangements, thus, gas entering the dry vacuum pump does not contain the oil and water, the dry vacuum pump is not liable to be damaged inuse, and the service life of the dry vacuum pump is prolonged.

Description

technical field [0001] The invention relates to an oil-water separation system and a separation method under the negative pressure state of a dry vacuum pump. Background technique [0002] In the existing machining, in order not to affect the surface processing of the entire product, an adsorption table is usually used to adsorb the product on the table through the principle of vacuum negative pressure; however, it is usually necessary to add cooling liquid when machining the product , cooling water, etc., the tool is cooled by cooling water; at the same time, when the workpiece is being processed, it will occasionally be threaded and cut through, and the negative pressure will take away the water and air together, and at the same time, it will produce Metal fragments, these fragments move with the water flow, and finally are sucked into the dry vacuum pump by negative pressure along the pipeline. Excessive oil-water mixture entering the dry vacuum pump will easily cause dam...

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Problems solved by technology

[0002] In the existing machining, in order not to affect the surface processing of the entire product, an adsorption table is usually used to adsorb the product on the table through the principle of vacuum negative pressure; however, it is usually necessary to add cooling liquid when machining the product , cooling water, etc., the tool is cooled by cooling water; at the same time, when the workpiece is being processed, it will occasionally be threaded and cut through, and the negative pressure will take away the water and air together, and at the same time, it will produce Metal fragments, these fragments move with the water flow, and finally are sucked into the dry vacuum pump by negative pressure along the pipeline. Excessive oil-water mixture entering the dry vacuum pump will easily cause damage to the dry vacuum pump and cause equipment failure. Affect the normal production; therefore, it is necessary to separate the oil, water and steam from the oil and water vapor that is cut through or cut by the negative pressure system; however, there is no effective method for the gas entering the dry vacuum pump in the existing machining. Separation of oil-water and steam in advance; therefore, it is urgent to invent a new method to solve the problem of oil-water and steam separation before the air intake of the current dry vacuum pump, so as to ensure that the air entering the dry vacuum pump does not contain mixed substances such as oil and water, thereby improving dryness. service life of the vacuum pump

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