Nitrogen-making, nitrogen-charging and air-exhausting system

Abstract

The invention provides a nitrogen-making, nitrogen-charging and air-pumping system, and relates to the field of nitrogen treatment. The system comprises a control system, and the control system comprises a controller; and a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve, a sixth electromagnetic valve, a seventh electromagnetic valve and an eighth electromagnetic valve which are connected with the controller, wherein the first electromagnetic valve is connected with a gas storage tank A, and the eighth electromagnetic valve is connected with a gas storage tank B; the second electromagnetic valve, the fifth electromagnetic valve and the sixth electromagnetic valve are used for controlling the one-way valve A to be cut off and the one-way valve B to be switched on; the third electromagnetic valve, the fourth electromagnetic valve and the seventh electromagnetic valve are used for controlling the one-way valve B to be switched on and the one-way valve A to be switched on; the nitrogen making, nitrogen charging and air exhausting functions can be automatically controlled, the dependence on nitrogen cylinder consumables is reduced, the production cost and the operation difficulty are reduced, and the working efficiency is effectively improved.

Description

technical field [0001] The invention relates to the field of nitrogen gas treatment, in particular to a nitrogen generating and nitrogen charging pumping system. Background technique [0002] For precision optical instruments and electronic instruments, in order to improve the service life and maintain accuracy, it is necessary to prevent internal mold, fog, and rust. The effective method is to fill inert gas under the premise of ensuring air tightness. Nitrogen, as the most common and cheapest inert gas in the atmosphere, has become the first choice for use. Therefore, filling high-purity nitrogen into the interior of optical instruments and electronic instruments is a necessary process during the production and after maintenance of the whole machine, and must be equipped with nitrogen cylinders, pressure reducing valves, air extractors and other equipment. [0003] The high-purity nitrogen stored in the nitrogen cylinder (usually requiring 99.99% purity) is continuously c...

AI Technical Summary

Problems solved by technology

These devices involve high-pressure gas and can only be used in fixed positions on the production site, and cannot be used in field tests and other occasions that require nitrogen filling maintenance

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