The electromagnetic pulse valve serves as the compressed air switch for the cleaning jet system of pulse bag dust collectors. It is controlled by the pulse jet control instrument, which sequentially sprays cleaning air into each room and row of filter bags, maintaining the dust collector's resistance within the set range to ensure optimal treatment capacity and dust collection efficiency.
(1)Electromagnetic Pulse Valve - The electromagnetic pulse valve is the actuator and a key component of the pulse-jet cleaning device. It is mainly categorized into three types: right-angle, submerged, and direct-through, with each type having...6No Chinese content provided, original return:
"No Chinese content provided"20～76mm(0.75～3in)Each valve consumes a certain amount of gas per spray.30～600m3/min(0.2～0.6MPa)It is noteworthy that the working pressure of domestic pulse valves, both right-angle and direct flow types, is...0.4～0.6MPaSump valve0.2～0.6MPaAll imported valves, regardless of type, have the same working pressure range.0.06～0.86MPaThere is no distinction between the two types of valves in terms of pressure resistance and the difference in applied pressure levels.
①Right-Angle Electromagnetic Pulse Valve Structure and Working Principle
The characteristic of the right-angle electromagnetic pulse valve is the air inlet and outlet pipes of the valve.90°The right-angled pulse valve is constructed as shown in the figure. As depicted, the diaphragm inside the valve divides the pulse valve into two gas chambers, the front and the rear. When compressed air is applied, it flows through the throttle hole into the rear gas chamber, at which point the pressure in the rear gas chamber tightens the diaphragm.
Valve sealing outlet, pulse valve in place.“Closed”Status.
The electrical signal from the pulse jet control instrument causes the armature of the electromagnetic pulse valve to move, opening the exhaust port of the gas chamber behind the valve. The gas chamber rapidly depressurizes, the diaphragm moves back, compressed air can pass through the valve outlet to be jetted, and the pulse valve remains in this state.“Launch”Instantly, compressed air is ejected from the valve, forming a jetting airflow.
When the pulse control instrument's electrical signal disappears, the solenoid of the pulse valve resets, the exhaust port of the rear gas chamber closes, and the pressure in the rear gas chamber increases, causing the diaphragm to adhere tightly to the valve outlet, and the pulse valve is back in place.“Closed”Status.
The technical specifications for our electromagnetic pulse valve are as follows.
aAdaptability: Temperature-10～+55℃Relative humidity not exceeding85%。
bMedium of Work: Clean Air, Dew Point-20℃。
cBlow-off gas source pressure:0.3～0.6MPa。
dBlow-off air volume: At a blow-off air source pressure of0.6MPaPuffing time0.1sDuring export blanking, the blowing gas volumeSYKL-J27Blow-off air volume45(L/Next)、SYKL-J34Blow-off air volume70(L/No content provided for translation.)、SYKL-J48Blow-off air volume160(L/Next)、SYKL-J60Blow-off gas volume270(L/Next)。
eElectromagnetic pilot valve working voltage, current:DC24V，0.8A；AC220V，0.14A；AC110V，0.3A。
fThe pulse valve's inlet is connected to the gas bag, and the outlet is connected to the jet blowing pipe. During the connection, the threads should be sealed with a PTFE raw material tape to ensure a tight fit. Also, when connecting, be mindful not to over-tighten the threaded length at the inlet to avoid affecting the jet blowing volume.
②Principle of Operation for Submersion-Type Electromagnetic Pulse Valve
The Submerged Electro-Magnetic Pulse Valve utilizes an installation method where it is submerged in a gas pocket, hence the name "submerged." As depicted in the figure, the submerged pulse valve design reduces flow channel resistance compared to other structural forms, lowering the pressure of the air source. Consequently, it is suitable for low-pressure applications, and it can also reduce energy consumption and extend the lifespan of the diaphragm.
The principle of the submerged electromagnetic pulse valve operates by dividing the valve into two chambers: the front and the rear. When compressed air is connected, the air flows through a throttle orifice into the rear chamber. At this point, the pressure in the rear chamber presses the diaphragm tightly against the valve's outlet, keeping the pulse valve in a closed state.“Closed”Status.
As the electrical signal from the pulse controller moves the armature of the pulse valve, the exhaust hole of the valve's after-chamber opens, causing the after-chamber to rapidly depressurize. The diaphragm moves, and compressed air is blown through the valve outlet. The pulse valve is in“Launch”The status. At this moment, a compressed air jet is instantaneously ejected.
Pulse controller electrical signal disappeared, solenoid of the pulse valve reset, rear gas chamber exhaust port closed, resulting in increased pressure in the rear gas chamber, causing the diaphragm to adhere to the valve outlet, and the pulse valve is now in a resting state.“Closed”Status.
SYKL-Y Technical specifications for the submerged-pulse valve are as follows.
aAdaptability: Temperature Range:—10～+55℃Relative humidity not exceeding85%。
bWork Medium: Clean Air.
cBlow-off air source pressure: Recommended for use0.2～0.3MPaNo Chinese content provided.0.3～0.6MPa。
dFlow Rate of Air Injection: At an air injection source pressure of0.25MPaThere is no Chinese content to translate.0.1sAt this time, the blowing air volume:SYKL-J42 Blow-off gas consumption50(L/Next)，SYKL-J60Blow-off gas consumption100(L/Next)，SYKL-J76Blow-off gas consumption170(L/Next)，SYKL-J89Blow-fuel consumption250(L/Next)。
eElectromagnetic pilot valve operating voltage and current:DC24V，0.8A；AC：220V，0.14A；AC110V，0.3A。
③ Direct-acting electromagnetic pulse valve
The direct-acting electromagnetic pulse valve features a construction where the center lines of the air inlets and outlets are aligned in a straight line, hence the name "direct-acting valve." Its structure is as shown in the figure. The pulse valve diaphragm divides the pulse valve into two gas chambers: the front and rear. When compressed air is connected, the pulse valve is in a closed state. The principle of its opening action is similar to that of a right-angle valve, but the flow direction of the gas jet is as shown in the figure. The advantages of the direct-acting pulse valve are its ease of installation and its common use in pulse dust collectors with gas boxes. The drawback is that there is significant resistance to the airflow passing through the valve body.
SYKL-ZTechnical specifications for the Type Direct-Acting Electromagnetic Pulse Valve are as follows.
aAdaptability: Temperature Range:-10～+55℃Relative humidity not exceeding85%。
bWork Medium: Clean Air.
cBlow-off air source pressure:0.3～0.6MPa。
dBlow-off gas volume: At the blow-off gas source pressure of0.6MPaThere is no Chinese content provided for translation. Please provide the text to be translated.0.1sDuring the export of empty, blowing air volume:SYKL-Z48 Blow-off gas consumption150（L/(The) (Next)SYKL-Z60 Blow-off gas consumption250（L/(Next)SYKL-Z76 Blow-off gas consumption400（L/Next
eElectromagnetic pilot valve operating voltage, current:DC24V，0.8A；AC220V，0.14A；AC110V，0.3A。
