In industrial high-temperature exhaust gas treatment systems (such as SCR denitrification, incinerators, chemical processes, etc.), monitoring and analyzing the composition of exhaust gas is a key link to ensure environmental compliance, process optimization, and equipment safety. In this precise process, the performance of the quartz tube, which carries the sensor, directly determines the reliability and lifespan of the entire monitoring system. As a foreign trade manufacturer specializing in customized quartz products, we will deeply analyze the irreplaceable advantages of quartz tubes in high-temperature waste gas treatment from a professional perspective.

Application scenarios of quartz tubes in high-temperature exhaust gas treatment

Quartz tubes mainly serve as protective sleeves in this field, with various high-temperature sensors (such as thermocouples, ultraviolet/infrared optical sensors, etc.) installed inside, directly inserted into high-temperature, highly corrosive exhaust gas ducts or pipelines. Its typical applications include:

SCR/SNCR denitration system: In the flue of boilers or kilns, quartz tube protection sensors monitor the concentration and temperature of gases such as nitrogen oxides (NOx) and sulfur dioxide (SO2).

Hazardous waste incinerator: Monitor the highly corrosive and toxic exhaust gases generated during the incineration process to ensure complete combustion and emissions meet standards.

Chemical and metallurgical processes: Real time composition analysis of high-temperature process gases in equipment such as reaction vessels and furnaces.

The core advantage of quartz tube: why is it an ideal choice?

Compared with ordinary glass or metal sleeves, high-purity fused silica tubes exhibit excellent performance in extreme environments:

1. Excellent high temperature resistance performance

Advantages: The softening point is as high as 1730 ℃, and it can work stably in an environment of 1200 ℃ for a long time. It can withstand higher thermal shocks in a short period of time.

Problem solved: Avoiding deformation and melting caused by high temperatures, ensuring the continuous existence of monitoring points in extreme temperature environments.

2. Extremely strong thermal shock resistance

Advantages: Extremely low coefficient of thermal expansion, able to withstand drastic and rapid temperature changes without bursting.

Problem solved: In unstable working conditions, equipment start stop, or pulse combustion, ordinary material protective tubes may rupture due to alternating cold and heat, while quartz tubes can handle it calmly.

3. Excellent chemical stability and corrosion resistance

Advantages: Except for hydrofluoric acid and hot phosphoric acid, it hardly reacts with other acidic substances and has strong resistance to acidic waste gases (such as SO2, SO3, HCl, etc.) and particulate matter.

Problem solved: Effectively resist the chemical erosion of high-temperature exhaust gas, prevent the casing wall from becoming thinner or perforated due to corrosion, extend its service life, and ensure the accuracy of sensor measurement data.

4. High optical transparency and purity

Advantage: For optical sensors that require measurement using ultraviolet (UV) or infrared (IR) spectroscopy, the high transparency of quartz tubes is crucial. Its high purity ensures that the measuring beam is interference free.

Problem solved: Provides a clear "window" for optical sensors, ensuring the accuracy and reliability of gas concentration analysis data.

5. Good electrical insulation and mechanical strength

Advantages: It can maintain good electrical insulation at high temperatures, with high hardness and wear resistance.

Problem solved: Protect the sensitive electronic sensor components inside and resist the erosion of dust in the flue gas.

Why choose us? ——Professional customized solutions

As a quartz product production expert deeply involved in the field of foreign trade, we are well aware of the unique needs of different customers and application scenarios. Our value lies not only in providing high-quality quartz tubes, but also in offering tailored solutions.

Accurate material selection: We offer quartz tubes of different purity levels (such as JGS1, JGS2) and recommend the most suitable material based on your specific application (whether it focuses on temperature resistance or optical performance).

Flexible customization processing capability: We can accurately process the outer diameter, wall thickness, length, sealing form (such as cone, flange connection), bending angle, etc. of quartz tubes according to your equipment drawings. We can achieve both irregular structures and high-precision openings.

Strict quality control: From raw material procurement to final factory delivery, each quartz tube undergoes multiple testing processes to ensure no bubbles, no impurities, precise size, stable and reliable performance.

Global service experience: Our clients are spread all over the world, familiar with industrial standards and requirements in various countries, and can provide you with professional and timely technical support and logistics services.

Customer real case (anonymous)

Case 1: A waste incineration power plant in Europe

Challenge: The incineration flue gas in the factory has a complex composition, strong corrosiveness, and large temperature fluctuations. The special steel protective sleeve originally used was severely corroded and deformed within 3 months, resulting in frequent sensor damage and high maintenance costs.

Our solution: We have customized a transparent quartz tube protective sleeve with thickened wall thickness for it.

Effect: The quartz casing successfully resists the corrosion and thermal shock of acidic gases, extending its service life to more than 2 years, greatly reducing customer downtime and spare parts replacement costs, and ensuring the continuity of emission monitoring.

Case 2: A chemical plant in Southeast Asia

Challenge: The customer needs to install an online UV analyzer on the reaction vessel, but the reaction temperature is as high as 950 ℃ and there are strict requirements for the transmittance of the protective sleeve.

Our solution: We recommend and customize JGS1 grade quartz tubes with high optical uniformity, and have machined an optical plane sealing window at one end.

Effect: Customized quartz tubes not only withstand long-term high temperatures, but their high transparency ensures precise transmission of UV analyzer signals, helping customers achieve precise control of key chemical reaction processes.

Have you ever been troubled by the lifespan, temperature resistance, or corrosion resistance of sensor protective sleeves in your industrial production or high-temperature exhaust gas treatment process? Welcome to leave a message below to communicate with us and share the specific challenges you have encountered. We are happy to use our professional experience to provide you with feasible solutions.

Luverre Quartz is a manufacturer specializing in quartz tubes and other quartz items.We have over 18 years experience with the production of quartz tubes, we will be your reliable partner on quartz tubes and other quartz items.

Luverre Quartz can manufacture customized quartz tubes in various shapes, such as spiral, square, round, with processing including cutting, bending, welding, etc., and available in different colors, such as transparent quartz tubes, opaque quartz tubes, milky white quartz tubes, red quartz tubes, and so on.