High Temperature Resistant Ultrasonic Spray Nozzle

High Temperature Resistant Ultrasonic Spray Nozzle

In high-temperature environments such as the chemical and energy industries, conventional Ultrasonic Spray Nozzles often experience performance degradation and component damage due to excessively high ambient temperatures. The high-temperature-resistant, cold-water-jacketed Ultrasonic Spray Nozzle overcomes these limitations through its innovative cold-water-jacket design. It maintains the precise advantages of ultrasonic atomization while stably withstanding extreme temperatures, making it a powerful atomizer specifically designed for high-temperature industrial applications.

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1. Core Design: Cold-Water Jacket - A High-Temperature "Protective Shield"
The core innovation of this nozzle lies in its built-in cold-water jacket structure. It surrounds theUltrasonic Spray Nozzle core components (transducer and nozzle tip), forming a sealed cooling channel. During operation, circulating cooling water (or other cooling medium) continuously flows through the jacket channel, removing heat transferred to the core components through heat exchange, keeping the component temperature within a safe operating range (typically ≤70°C). The cold water jacket design offers two key advantages:
Precise Temperature Control: The jacket's spiral flow path provides a large contact area with the core components, ensuring uniform cooling medium flow. The cooling water flow rate can be dynamically adjusted based on ambient temperature, preventing local overheating or overcooling and ensuring stable atomization performance.
Corrosion-Resistant and High-Temperature Compatible: The jacket is constructed of high-temperature stainless steel (316L) or a special alloy, capable of withstanding external temperatures of 200-800°C while resisting corrosion from the cooling medium and atomized liquid, extending the nozzle's service life.
II. Core Advantages: Breakthrough Performance in High-Temperature Environments
1. High-Temperature Stability
ConventionalUltrasonic Spray Nozzles are susceptible to problems such as decreased efficiency and insulation degradation in environments above 150°C. However, this nozzle, thanks to the continuous cooling provided by the cold water jacket, can stably operate in high-temperature environments of 200-800°C (such as steel mill converter cooling and chemical reactor atomization), achieving over 3,000 hours of continuous operation without performance degradation.

2. Atomization Effect Unaffected by High Temperatures
High temperatures do not alter the uniformity and fineness of the atomized particles. Leveraging high-frequency ultrasonic vibration (20-120kHz) and the protection of the core components by a cold water jacket, the atomized particle diameter is stably controlled at 5-50μm, with a particle deviation of ≤5%. This prevents the uneven atomization caused by thermal deformation of conventional nozzles at high temperatures.
3. Suitable for High-Temperature Media Atomization
Not only can it withstand high external temperatures, it can also directly atomize high-temperature liquids (such as molten salts and hot chemical raw materials) at 80-150°C. The cold water jacket is physically isolated from the atomization channel, preventing the cooling medium from mixing with the atomized liquid, ensuring the purity of the atomized medium and process stability. 4. Low Energy Consumption and Long Life
The water-cooled jacket cooling method consumes very little energy (requiring only a small circulating water pump for operation), reducing energy consumption by 30% compared to the traditional "air cooling + high-frequency heat dissipation" solution. Furthermore, core components operate at room temperature for extended periods, reducing failure rates by 60% and extending service life by 2-3 times compared to conventional high-temperature-resistant nozzles.

III. Typical Application Scenarios: Focusing on High-Temperature Industrial Needs
1. Metallurgy and Steel Industry
Converter/Blast Furnace Cooling: Cooling water is atomized into fine particles and sprayed into the high-temperature furnace, rapidly absorbing heat and achieving cooling. This avoids the large temperature gradients and shortened service life associated with traditional water-spray cooling.

Secondary Cooling of Continuous Casting Ingots: For high-temperature continuous casting ingots, precise atomization cooling is used to control the temperature gradient within the ingot, reduce cracks, and improve ingot quality.

2. Chemical and Energy Industry
High-Temperature Reactor Feeding: High-temperature liquid raw materials (such as molten resin and hot catalyst) are atomized and sprayed into the reactor to increase the contact area between the raw materials and reactants, improve reaction efficiency, and prevent uneven reaction caused by raw material agglomeration due to high temperature.
Denitrification in Biomass Power Generation Boilers: Denitrification agents (such as ammonia and urea solution) are atomized in the flue of high-temperature boilers to thoroughly mix with the flue gas, improving denitrification efficiency and meeting environmental emission requirements.
3. Ceramics and Building Materials Industry
Ceramic Kiln Moisturization and Cooling: During the ceramic firing process, high-temperature water vapor is atomized into the kiln to maintain a stable humidity. Atomized cooling precisely controls the temperature profile within the kiln, improving the density and gloss of the ceramic products.
Cement Rotary Kiln Waste Heat Utilization: Atomized water is sprayed into the waste heat section of the rotary kiln, absorbing the waste heat to generate steam, which is used for power generation or heating, achieving energy recovery and reducing energy consumption.

4. Environmental Protection and Waste Disposal
Waste Incinerator Cooling and Deacidification: At the incinerator outlet, atomized cooling water lowers the flue gas temperature. Simultaneously, atomized alkaline deacidification agents (such as calcium hydroxide solution) neutralize acidic substances (HCl and SO₂) in the flue gas, reducing harmful gas emissions.

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