Mechanism for regulating high pressure industrial air using double layer electromagnetic valves
The mechanism in the invention provides a solution for automated, remote regulating high pressure air in the industrial air tube system. With double layer electromagnetic valves, the mechanism assure the comfortable and safe working platform for humans and equipment. The mechanism comprises: mechanical valve, 20 L pneumatic tank, pressure gauge, sealed metal box, static disc, electromagnetic relay with movable stem, capacitor, low pressure air tube, high pressure air tube, electrical wire, electromagnetic relay.
1 . A mechanism for regulating high pressure industrial air, wherein the mechanism comprises:
a mechanical valve which is manually operable, placed at an inlet of the mechanism, said mechanical valve for opening/closing an air flow to the mechanism;
a 20 L pneumatic tank made of high strength materials adapted to withstand high pressure, said 20 L pneumatic tank adapted to store and keep the high pressure industrial air stable inside when the mechanism is working;
an electronic pressure gauge capable of measuring pressure in a range from 0 to 40 atm, with accuracy 0.1 atm, the electronic pressure gauge positioned at least 0.5 m away from the 20 L pneumatic tank and a sealed metal box, to ensure the air flow passing by the electronic pressure gauge is stable and a pressure value displayed by the electronic pressure gauge is accurate;
a sealed metal box which is air sealed, adapted to withstand high pressure corresponding to the 20 L pneumatic tank, wherein the sealed metal box stores an electromagnetic valve inside;
wherein the 20 L pneumatic tank is placed right after the mechanical valve, to ensure the 20 L pneumatic tank is always filled, preventing a pressure shock when the mechanical valve is opened or closed;
a static metal disc fixed inside the sealed metal box;
an electromagnetic relay and a movable metal stem, placed inside the sealed metal box, near an outlet of air flow, the movable metal stem adapted to move inside the sealed metal box under magnetic flux; movement of the electromagnetic relay and the movable metal stem adjusts a cross section of an air tube of the outlet of the air flow, thus, regulating pressure of the air flow outside the sealed metal box;
a capacitor for discharging electricity when a second electromagnetic valve inside the sealed metal box switches from charging to discharging, the capacitor is placed outside the sealed metal box, a first end of the capacitor is connected to the static metal disc, a second end of the capacitor is grounded;
wherein a second electromagnetic relay outside the sealed metal box is used to open, close, and regulate electric power for the electromagnetic valve inside the sealed metal box, the second electromagnetic relay is placed outside the sealed metal box and is connected to the electromagnetic relay and the movable metal stem inside the sealed metal box;
a tube at an outlet for low pressure air flow;
a tube at an outlet for high pressure air flow;
an electrical wire transferring current from a power source, the electrical wire passing through the second electromagnetic relay outside the sealed metal box to the electromagnetic valve inside the sealed metal box and to the capacitor.