Разработка ионно-плазменной технологической установки для нанесения функционального покрытия на крышки масляных фильтров, страница 33

- Working medium pressure decrease receiving from a tank, up to the certain level and its maintenance at this level in the set limits;

- Maintenance of the demanded level of working medium charge or change of this charge;

- Maintenance of the set charge of working medium and its submission in sources.

In the given work is developed RFS with reference to magnetron atomizing system working on gaseous working medium (nitrogen) and accelerator with the anode layer, working on argon.

Basic elements of repository system are: cylinder (an industrial cylinder on 40 liters) for storage of the working body, the locking valve cutting repository system from the feed system for the period of idle time of installation.

The throttling system provides pressure decline up to the set level and includes: the gas reducer intended for pressure decline of gas; receiver - intermediate capacity in a highway of gas submission in which pressure at the set level is maintained; the electro valve, the systems of storage of working medium intended for connection at the set level or in the set range; regulators of the gas charge, intended for maintenance of the necessary mass charge at the set target pressure. The control is carried out by means of pressure sensors.

The system of regulation provides the set level of the mass charge of the working medium on an input in magnetron. It includes regulators of the working gas charge and electro valves.

As in developed installation it is used two working bodies, nitrogen and argon, the system of storage and submission of working substance consists of two channels.

At opening the gate of a cylinder with nitrogen gas passes through the reducer, pressure of gas goes down with 150 MP up to 2 MP. At inclusion of the electro valve (ЭК1) the receiver is filled with working medium up to as much as possible set pressure controllable by the pressure sensor (ДД2). After achievement in the receiver of as much as possible set pressure, the electro valve (ЭК1) is closed. Further gas acts on pipelines in sources, in process of gas use from a receiver, gas pressure in it decreases. Then the electro valve opens, and the cycle repeats again.

The structure of secondary power supplies includes power supply system (PSS) which in turn consists of sources of power supplies (SPS). The power supply system provides under the set program with power supplies all circuits of installation, and sources of power supplies - independent devices or separate circuits of installation.

Systems and sources of power supplies contain functional units which depending on purpose carry out functions of straightening, stabilization, protection, switching, the signal system, amplification, etc.

Depending on quality of problem voltage SPS can be stabilizing and not stabilizing [22]. Stabilizing SPS provide a constancy of problem voltage at the set level at effect of influencing sizes (change of an input voltage, a output current, an ambient temperature, etc.) and incorporate current stabilizer. In not stabilizing SPS there is no functional unit of stabilization of current.

On an operating mode stabilizing SPS are divided on adjustable and noncontrollable. Adjustable SPS is such source which problem voltage can be changed during work. Noncontrollable SPS have the constant, fixed level of the problem voltage with the adjusting admission normalizing a difference between nominal and actual values of the problem voltage.

From the point of view of construction principles SPS is expedient to divide on value of the construction into groups:

- Low-voltage SPS, the level of which construction does not exceed 250 V;

- SPS with the increased level of problem voltage (from above 250 V up to 1000);

- SPS with a high level of the problem voltage (from above 1000).