In fact, the gas pressure regulator is an automatic voltage stabilizing device

The gas pressure regulator can not only change the high-pressure petroleum gas in the bottle into low-pressure petroleum gas (from 980 kPa to about 100 kPa), but also stabilize the low-pressure gas within the pressure range suitable for the safe combustion of the stove. That is, the pressure of the petroleum gas output through it, the pressure at the fire hole of the stove, is greater than the outside atmospheric pressure value by about 2940Pa at any time, so in fact the voltage regulator is an automatic voltage stabilizing device.

People used to call it a pressure reducer, only to pay attention to its function of reducing voltage, and neglected its ability to stabilize voltage. The ingenious and fine design of the voltage regulator is precisely reflected in its voltage stabilizing ability. This article intends to make a detailed explanation in this respect. The following figure is the structural diagram of the pressure regulator, which is mainly composed of handwheels, intake pipe, upper valve cover, lower valve cover, rubber membrane, intake nozzle, valve pad, a small lever, air outlet and other components.

In the middle of the regulator is a round rubber membrane, which divides the regulator into two air chambers. There is a spring in the upper air chamber, the upper end is connected with the adjusting screw cover, and the lower end is connected with the rubber film. There is a small hole with a diameter of 0.8 mm at the edge of the upper valve cover, which allows the upper air chamber to communicate with the outside world.

This hole is visually called a breathing hole. There is a lever made of fine brass in the lower air chamber, the total length is about 5cm, and the rotation performance is very sensitive. The right end of the lever is connected to the center of the rubber membrane, and the left end is adhered to the valve pad and fastened to the intake nozzle, which has a damping effect on the high-pressure petroleum gas that is sprayed. The distance of the left and right ends of this lever from the fulcrum is short left and long right, which are unequal arm levers. Its performance characteristics are: a small change in the force on the right end of the lever will inevitably cause a large change in the force on the left end of the lever. In principle, the amplification of the force is achieved; in effect, the damping effect on the high-pressure gas is increased.