Mechanism for regulating high pressure industrial air using double layer electromagnetic valves

Abstract

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.

Claims

1. A mechanism for regulating high pressure industrial air, wherein the mechanism comprises: a mechanical valve: manually operated, placed at an inlet of the mechanism, designed to open/close an air flow to the mechanism; a 20 L pneumatic tank is made of high strength materials which can withstand high pressure, to store and keep stable air inside when the mechanism is working; an electronic pressure gauge to can measure pressure in a range from 0 to 40 atm, with accuracy 0.1 atm, the pressure gauge is placed at least 0.5 m away from the 20 L pneumatic tank and the sealed metal box, to make sure the air flow passing by the gauge is stable and the pressure value displayed is accurate; a sealed metal box which is fully air sealed, and can withstand high pressure corresponding the to 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, making sure the tank is always fully filled, preventing a pressure shock when the mechanical valve is opened or closed; a static disc fixed inside the sealed metal box and made from metal; an electromagnetic relay and a movable stem, made from metal, placed fully inside the sealed metal box, near an outlet of air flow, which can move inside the sealed metal box under magnetic flux; movement of the electromagnetic relay and the movable stem adjusts cross section of an air tube of the outlet of air flow, thus, regulating pressure of air flow outside the sealed metal box; a capacitor used to discharge electricity when the second electromagnetic valve inside the box switches from charging to discharging to move, the capacitor is place outside the sealed metal box, a first end of the capacitor is connected to the static discs, a second end of the capacitor is grounded; wherein a second electromagnetic relay outside the sealed metal box is used to open, close, regulate the electric power for the electromagnetic valve inside the metal box, the second electromagnetic relay is placed outside the sealed metal box and is connected to the electromagnetic relay and movable stem inside the 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 power source, passing through the second electromagnetic relay outside the box to the electromagnetic valve inside the sealed metal box and to the capacitor.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0007] FIG. 1 constitutes a schematic drawing of the mechanism for regulating high pressure air system in accordance with the invention.

DETAILED DESCRIPTION OF THE INVENTION

[0008] The invention is described in the detailed description by the references made to the schematic drawings. However, to any person or ordinary skill in the art, the understanding of these references is not limited by what illustrated in the above drawings. The design of this invention could also be innovated and/or modified but committed to stay in the boundary conditioned by the safety specifications. Therefore, the embodiments of the invention described with reference to figures are only served as illustrative purpose, and do not set any limitation for the invention.

[0009] Refer to FIG. 1, the mechanism in the invention comprises of 11 parts/units:

[0010] Mechanical valve 2: manually operated, integrated at the inlet of the mechanism to open/close the high pressure air flow that goes into the mechanism.

[0011] 20 L pneumatic tank 3: made from materials that can withstand high pressure. This tank is used to store the air and make the air stable before going inside the system. The tank is place right after the mechanical valve 2 to make sure this tank is always fully filled, thus, the system will not be shocked when the first electromagnetic valve is opened.

[0012] Pressure gauge 4: is an electronic gauge that can measure pressure in the range from 0 to 40 atm, with accuracy 0.1 atm. The pressure gauge 4 is placed at least 0.5 m away from 20 L pneumatic tank and the sealed metal box, to make sure the air flow passing by the gauge is stable and the pressure value displayed is accurate.

[0013] Sealed metal box 5: fully air sealed, and can withstand high pressure similar the to 20 L pneumatic tank. This box stores the second electromagnetic valve inside, bringing safeness to the human operating nearby.

[0014] The static disc 6: it is fixed inside the sealed metal box 5 and is made from metal.

[0015] The electromagnetic relay and the movable stem 7: made from metal, it can move inside the sealed metal box 5 under the magnetic flux. It is placed fully inside the sealed metal box 5, near the outlet of the air flow. The movement of the relay and the stem can adjust the air tube of the outlet, thus, regulating the pressure of the air flow outside the sealed metal box 5.

[0016] Capacitor 8: is used to discharge the electricity when the second electromagnetic valve inside the box switch from charging to discharging to move. The capacitor 8 is place outside the sealed metal box 5, one end of the capacitor is connected to the static discs 6, the other end is grounded.

[0017] Low pressure air tube 9: the outlet tube of low pressure air flow.

[0018] High pressure air tube 10: the outlet tube of high pressure air flow.

[0019] Electrical wire 11 is used for power distribution to transmit electricity from a transformer or other source to the mechanism.

[0020] Electromagnetic relay 12: is used to open, close, regulate the electric power for the electromagnetic valve 7. The relay 12 is placed outside the sealed metal box 5, and is connected to the electromagnetic relay and movable stem 7.

[0021] Comprising of the components above, the working principle of the mechanism in the invention can be described as followed: the air flow 1 is released from pneumatic air compressor to the air tube system, pass through the mechanical valve 2 to the 20 L pneumatic tank, then pass through the pressure gauge 4 to the sealed metal box 5. The metal box 5 is fully air sealed, containing the low pressure air tube 9 and high pressure air tube 10 which are connected to the outlet. The metal box 5 also contains the static disc 6 and electromagnetic valve 7. The cross section of the air tube at the outlet is controlled by the distance between the static disc 6 and the movable stem in the electromagnetic valve 7, thus, controlling the pressure of the air at the outlet in the tube 9 and tube 10. When the electromagnetic valve 7 is closed, electric current from the movable stem in the valve 7 will pass through the static disc, charged at capacitor 8 and discharged to the ground.