DMF-Y submerged electromagnetic pulse valve

DMF-Y submerged electromagnetic pulse valve, also known as submerged valve (also known as embedded valve), is directly installed on the gas separator and has good flow characteristics. The pressure loss has decreased, making it suitable for work environments with lower gas source pressure.

The DMF-Y submerged electromagnetic pulse valve is a switch for controlling compressed air in the bag filter cleaning system. It is controlled by the output signal of the pulse controller to sequentially blow and clean the filter bags, so that the resistance of the dust collector is within the set range, and the dust removal efficiency of the dust collector is improved;

The DMF-Y submerged electromagnetic pulse valve is submerged, with an angle of 90 degrees between its inlet and outlet, suitable for installation and connection of the air storage cylinder and dust collector spray pipe. The airflow is smooth and can provide pulse airflow that meets the requirements.

The DMF-Y submerged electromagnetic pulse valve is the compressed air "switch" of the pulse bag filter dust cleaning and spraying system. Under the control of the output signal from the pulse jet control instrument, the filter bags are blown clean one by one to maintain the resistance of the dust collector within the set range, in order to improve the processing capacity and dust collection efficiency of the dust collector.

Advantages of DMF-Y submerged electromagnetic pulse valve:

The valve seat is embedded in the airbag for installation, with low resistance, good circulation, high injection volume, good operating effect, stable performance, easy maintenance, long service life, improved load carrying capacity, and expanded range of gas source pressure. It is more suitable for use in situations with low gas source pressure.

Spray time of DMF-Y submerged electromagnetic pulse valve:

The spraying time of DMF-Y submerged electromagnetic pulse valve refers to the time when the pulse valve starts spraying. It is generally believed that the longer the blowing time, the more compressed air is injected into the dust bag, and the better the dust cleaning result. However, when the blowing time is added to a certain value, its impact on the cleaning results is not clear.

With the increase of blowing time, the pressure drop of the dust collector quickly decreases, while when the blowing time reaches a certain value, the pressure drop decreases very little, but the compressed air volume increases exponentially. Therefore, it is limited to reduce the pressure drop of the pulse bag filter by adjusting the spraying time.

The setting of spraying time refers to the time when the pulse solenoid valve is energized, not the time when the pulse valve diaphragm is activated. For example, set the power on time of the pulse valve to 50ms and the time for the pulse valve diaphragm to move to 100ms. The key to the effectiveness of dust cleaning during the spraying time of the pulse valve is the peak unevenness of the airflow, rather than the duration of the airflow. From this, it can be inferred that the electromagnetic pulse valve will have a significant impact on the dust cleaning results.

Performance inspection of DMF-Y submerged electromagnetic pulse valve:

1. Open voltage test: Connect clean air with a nominal pressure to the inlet of the electromagnetic pulse valve, and input 85% of the nominal voltage to the electromagnetic valve with a width of 0. 03s electrical signal, check if the electromagnetic pulse valve opens normally.

2. Close the air pressure test: Connect the air source pressure at the inlet of the electromagnetic pulse valve to 0. 1MPa clean air, input the electrical signal to close the valve, and check if the electromagnetic pulse valve is closed.

3. Pressure resistance test: Connect the air source pressure at the inlet of the electromagnetic pulse valve to 0. Clean air at 8MPa for 60 minutes, check the leakage of air from various sealing parts on the electromagnetic pulse valve.

4. Insulation resistance test:

(1) Using a 500V megohmmeter with a range of 0M Ω to 500M Ω and an accuracy of level 1, measure the insulation resistance of the electromagnetic coil to the casing under specified environmental conditions.

(2) Place the valve in a temperature and humidity control box, set the temperature to 35 degrees and the relative humidity to 85%. Apply a 50Hz, 250V sine AC voltage between the electromagnetic coil and the valve body for 1 minute, and check for any breakdown phenomenon.

5. Fix the valve on the vibration test bench and withstand a vibration frequency of 20Hz, a full amplitude of 2mm, and a duration of 30 minutes. Check whether the fasteners of each part of the valve are loose and whether they are working properly.

6. Connect clean air of nominal pressure to the inlet of the electromagnetic pulse valve, input a nominal voltage value with a width of 0.1s and an interval of 3s on the electromagnetic valve, and record the continuous or cumulative operating times of the valve.