Structure and characteristics of ultra-low pressure and large caliber electromagnetic pulse valve?

DMY ultra-low pressure and large diameter electromagnetic pulse valve is a kind of large flow and large air volume electromagnetic pulse valve applied to low pressure rotary pulse bag filter. The valve has low blowing pressure, large blowing capacity and a large number of filter bags, so the maintenance workload is small. Roots blower is used to supply air, which saves a lot of energy and has high dust removal efficiency. It is very popular with industry users in the store. At present, specifications such as 8, 10, 12, 14 and 16 inch have been developed in China. After testing, the performance has reached the domestic advanced level, and users can replace imported products.

1. Structural characteristics

DMY ultra-low pressure large-caliber electromagnetic pulse valve adopts three-stage diaphragm structure, each stage is matched with unloading holes, and each stage is matched with air cavity flow holes, so as to ensure high-flow pulse injection under the condition of high injection sensitivity.

The valve seat of the first-stage pulse valve is integrated with the gas distribution box, which makes the pulse valve have low internal resistance and good fluidity, and can realize ultra-low pressure air injection less than 0. 1MPa. Roots blower can be used for air supply, with cheap equipment and simple management.

2. Working principle

Ultra-low-pressure large-caliber electromagnetic pulse valve closes the pulse valve through the pressure difference formed by the stress area difference on both sides of the diaphragm. The controlled pilot head of the electromagnetic pulse valve opens the unloading hole with a pulse width of 0. 15-0.3s, so that the air flow in the high-pressure area of the diaphragm is unloaded and the diaphragm is lifted for pulse injection.

3. Technical standards

Performance parameter table of ultra-low pressure and large caliber electromagnetic pulse valve;

4. Model specifications

See table for the model specifications of ultra-low pressure large-caliber electromagnetic pulse valve: