In many aspects of industrial production, dust treatment has always been a crucial issue. Whether it is to ensure the stable operation of production equipment or to meet the requirements of the working environment and environmental protection, an efficient dust removal system is essential. Among various dust removal equipment, the pulse valve, as one of the core components, directly affects the overall performance of the dust removal system. Today, we will have an in-depth understanding of a widely used pulse valve in the industrial field – the DMF-Z-40 pulse valve.
I. Product Overview
The DMF-Z-40 pulse valve is a right-angle type valve, with a 90℃ angle between its inlet and outlet. This unique structural design gives it significant advantages in installation and connection. It is especially suitable for the connection between the air storage tank and the dust removal blowpipe, ensuring smooth gas flow and providing the required cleaning gas pulses for the dust removal system. As the “switch” for compressed air in the cleaning blowpipe system of pulse bag dust collectors, it plays a vital role in the entire dust removal process, directly determining the efficiency and effectiveness of filter bag cleaning by the dust collector.
II. Working Principle
The working principle of the DMF-Z-40 pulse valve is based on electromagnetic control and gas circuit switching. When the pulse valve is not energized, high-pressure gas enters the lower air chamber from the inlet. At this time, the gas slowly enters the decompression chamber through the constant pressure pipeline between the upper and lower shells and the throttle hole in it. Since the valve core tightly blocks the pressure relief hole under the action of the spring, the gas cannot escape, keeping the pressure in the decompression chamber the same as that in the lower air chamber. Under the elastic force of the spring, the diaphragm seals the blowpipe tightly, preventing the gas from rushing out.
When the pulse valve receives the electrical signal output by the pulse blowing control instrument, the valve core lifts upward against the spring resistance under the strong action of electromagnetic force, and the pressure relief hole is opened immediately. At this time, the gas quickly escapes from the pressure relief hole. Due to the current-limiting effect of the throttle hole in the constant pressure pipeline, the gas outflow speed from the pressure relief hole is much faster than the inflow speed of the gas from the constant pressure pipe of the decompression chamber, causing the pressure in the decompression chamber to drop rapidly and become lower than that in the lower air chamber. Under the pressure difference between the upper and lower air chambers, the gas in the lower air chamber generates enough thrust to lift the diaphragm, opening the blowpipe, and a powerful gas blowing flow rushes out instantly to clean the filter bags efficiently. When the electrical signal disappears, the electromagnetic force also disappears, and the valve core resets under the action of the spring, blocking the pressure relief hole. The pressure in the decompression chamber gradually recovers, and the diaphragm seals the blowpipe again, completing a full working cycle.
