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The wire mesh demister is an important component in chemical gas-liquid separation equipment, which is composed of a wire mesh, a grid and support parts. Common metal materials for wire mesh include SS304, SS316L, titanium alloy, nickel-based alloy and Hastelloy, etc., while non-metal materials include PE polyethylene, PP polypropylene, PTFE polytetrafluoroethylene, GF glass fiber, etc.
What happens when a moist gas containing water mist or foam passes through a very fine and fluffy wire mesh:
- Collision: Gas carrying liquid droplets travels through the maze of the wire mesh, and the droplets constantly collide with the fine ones On the silk.
- Adhesion:Due to the surface tension of the liquid, these tiny droplets will adhere to the surface of the fine filament.
- Coagulation: The adhered liquid droplets increase in number, and small droplets converge into large ones.
- Shedding: When the droplet grows large enough for its own weight to exceed the blowing force of the gas and the surface tension of the liquid, They will fall off the wire mesh.
Unlike traditional wire mesh demisters, the core of the corrugated wire mesh demister lies in its wavy mesh block structure. This design is not merely a simple change in form; it brings about a substantial improvement in separation efficiency: ● Effectively prevent secondary entrainment: Its wave channel naturally separates the gas and liquid flow paths. When the gas bypasses the curved path of the wire mesh, the captured liquid droplets can smoothly descend along the trough, fundamentally avoiding the “secondary entrainment” phenomenon where the already captured liquid is re-swept away by the high-speed gas flow。
The wavy structure significantly enhances the effective separation area. Based on actual calculations, it increases the effective foam removal area by approximately 15% compared to conventional flat designs. This improvement enables the system to process a larger air volume within the same equipment footprint, or achieve equivalent performance in a more compact configuration, thereby supporting the development of space-efficient equipment designs.
- Achieve cost reduction and efficiency improvement:In practice, a well-designed corrugated wire mesh demister often has a separation effect comparable to or even exceeding that of two ordinary wire mesh layers. This directly saves valuable space inside the tower for the equipment, while reducing material and installation costs.
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