Views: 0 Author: Site Editor Publish Time: 2025-04-15 Origin: Site
As a technological leader and industry standard-setting enterprise in China's bag dust collection sector, Suzhou Xiechang Environmental Protection Technology Co., Ltd. (XieChang Global) has specialized in the research, development, and manufacturing of pulse valves for over 30 years. Our products are certified to international standards such as CE, ROHS, and ATEX, serving industrial dust management scenarios in over 50 countries worldwide. This article dissects the definition, types, and applications of pulse valves, highlighting how Xiechang's expertise enhances the efficiency of industrial dust collection systems.
I. Definition and Core Features of Pulse Valves
A pulse valve is a critical component in industrial dust collection systems, functioning as a specialized solenoid valve that releases compressed air in short, high-velocity pulses to remove accumulated dust from equipment. In bag dust collection systems, it plays a pivotal role by periodically ejecting high-pressure air to dislodge dust from filter bags, restoring their filtration efficiency and ensuring continuous system operation. Key distinctions from ordinary solenoid valves include:
1. Unique Pulsed Air Supply
Short-Duration High-Pressure Injection: Activated for just 50–120 milliseconds, it ejects compressed air at speeds exceeding 30m/s, generating a powerful impact to dislodge dust from filter bags rapidly. Compared to continuous air supply, energy consumption is reduced by 40–60%.
Precision Timing Control: Operated by timers or intelligent controllers, it allows flexible adjustment of pulse width (activation time) and interval based on operational conditions and dust characteristics, enabling efficient and energy-saving cleaning.
2.Specialized Structural Design
Diaphragm-Driven Mechanism: Uses specialized rubber diaphragms to control airflow. When the solenoid coil is energized, the diaphragm lifts to open the valve; when de-energized, it resets via a spring. High-quality diaphragms offer a service life exceeding 1 million cycles.
3. Dedicated Medium and Environmental Adaptability
Compressed Air Only: Optimized for clean, dry compressed air, a medium that ensures smooth operation and prevents internal blockage or corrosion. A pre-filter is typically installed to maintain air purity.
Harsh Environment Resistance: Engineered to withstand extreme conditions.
II. Main Types and Technical Advantages of Xiechang Pulse Valves
XieChang pulse valves are categorized by structure, material, temperature resistance, and voltage requirements to meet diverse operational needs.
1. By Structural Design
Model: DCF-Z Series
Features: Utilizes special nuts and seals for direct sealing on smooth pipe walls, enabling quick installation and tight sealing. Ideal for small-to-medium dust collection equipment.
Applications: Cement mixing plants, feed processing facilities (medium dust load scenarios).
Model: DCF-ZM Series
Features: External thread connections for rigid pipelines (no seals required), lightweight design for rapid disassembly.
Applications: Ceramic spray-drying towers, small woodworking dust collectors (frequent maintenance scenarios).
Immersed Pulse Valve
Model: DCF-Y Series
Features: Directly embedded in air tanks to reduce airflow resistance, enhancing jetting efficiency by 30%. Fast diaphragm response (10ms activation), large-bore design for high-volume air supply.
Applications: Cement mixing plants, feed processing facilities (medium dust load scenarios).
Straight-through Pulse Valve
Model: DCF-T Series
Features: Colinear inlet/outlet design reduces pressure loss by 40%, compatible with flexible hoses; dual-diaphragm structure covers 30+ filter bags per pulse.
Applications: Concrete batching plants, biomass boiler dust systems.
Pneumatic Pulse Valves
Model: DCF-**-DXK Series
Features: Power-free operation via 0.4–0.6MPa control air, IP65 protection, 15ms response time—ideal for high-explosion-risk environments like refineries and pharmaceutical facilities.
Applications: Oil refinery FCC units, medical dust collection systems.
2. By Raw Materials
According to the raw materials, they are divided into: Aluminum alloy, Limited copper-zinc aluminum alloy, 304 stainless steel and 316 stainless steel.
3. By the Temperature Resistance Grade
They are divided into the ordinary type and the high-temperature resistant type.
4.By Voltage Requirements
According to the voltage requirements, they are divided into:DC24V, AC110V and AC220V.
III. Industrial Applications of Pulse Valves
Metallurgy
Petrochemical
Cement
Electric Power
Waste Incineration
Grain
Pharmaceutical
IV. Working Principles and Core Technology
1.Single/Dual-Diaphragm Design
Single Diaphragm (3/4"–1"): Basic design for medium-low pressure (≥0.5kg/cm²), cost-ef.
Dual Diaphragm (1.5"–2"): Two-stage operation (pilot diaphragm + main diaphragm) creates rapid pressure differential, increasing jetting force by 50% while extending diaphragm life by 20%.
2. Intelligent Control Logic
Differential Pressure linkage: Real-time monitoring of filter bag resistance via pressure sensors to trigger cleaning automatically, avoiding over/under-jetting.
Timer Relays: Support 4–24 output channels, allowing precise adjustment of pulse width (50–120ms) and interval (1–60 minutes) for different dust types.
V. Xiechang’s Core Competitiveness
Full-Chain R&D Capability: Owns a provincial-level engineering research center for bag dust collection systems, developing proprietary diaphragm materials resistant to -40°C–+80°C.
International Certifications: ISO 9001/14001/45001 certified, products compliant with CE, UL, ATEX, etc.—exported to Southeast Asia (45%) and South America (30%).
Custom Solutions: Provides end-to-end services from valve selection to system integration, supporting special requirements for explosion-proof, anti-corrosion, and low-temperature applications.
Choose Xiechang Pulse Valves for Efficient, Intelligent Dust Cleaning
