Steam muffler applications and product features:
The noise emitted from the steam exhaust of steam boilers and other thermal equipment far exceeds the values stipulated in China's "Hygiene Standards for Industrial Enterprise Noise" (refer to Appendices 1 and 2).
Our factory has sold a series of practical steam muffler products, primarily used for effectively silencing steam emissions from thermal equipment such as boilers and steam turbines in industrial sectors like power generation, chemical, metallurgy, and textile. These steam mufflers are developed based on the composite noise reduction principle of resistance, jet, and obstruction, featuring large noise reduction capacity, small size, light weight, and easy installation.
1. Our factory offers the following types based on different applications: 1. The boiler ignition exhaust silencer (TB) type is designed to suppress the noise of high-pressure steam exhaust. Currently, there are various types of silencers in the world, with most using multi-stage throttling and pressure reduction principles. However, their complex structure, heavy weight, and difficulty in disassembly and maintenance limit their application range. This new structural silencer overcomes these drawbacks. This steam silencer integrates reasonable noise reduction principles. After passing through a single control flow in the exhaust silencer, high-pressure steam enters the pressure-reducing body, undergoes expansion in a large volume, and then forms low-pressure steam, which is emitted. During this process, a portion of the steam's internal energy is converted into a certain frequency of sound energy, resulting in a significant reduction in noise power. However, due to factors such as deviations from the designed exhaust value, the noise may still exceed the standard value. To address this, a double-layered sound-absorbing shield is designed outside the pressure-reducing body, tailored to the spectral characteristics of the remaining noise emitted by the pressure-reducing body, for effective absorption of the residual noise. After installation according to specifications, the total noise reduction should reach 36-45 decibels.
2. The TA-type steam safety valve muffler is well-known. For the safety valves of boilers and other thermal equipment, it is necessary to avoid excessive noise in the exhaust steam while ensuring smooth steam flow. Therefore, the commonly used multi-stage throttling and small-hole injection noise reduction methods should not be employed. Such restrictions have always been the design challenge of safety valve mufflers and the reason for their poor noise reduction performance. This utility model also utilizes the anti-noise, spray, and resistance noise reduction principles for safety valve mufflers, replacing the smaller diameter flow control holes with larger holes for capacity expansion. This enhances the anti-noise, spray, and resistance noise reduction mechanisms structurally, achieving ideal noise reduction results.
3. Many industrial and mining enterprises utilize a large number of low-pressure boilers with pressures of 01.3MPa or less, and there are also substantial low-pressure thermal facilities in power plant thermal systems, such as back-pressure steam turbines, deaerators, auxiliary gas generators, steam turbine oil pumps, continuous blowdown from boilers, and regular blowdown expansion tanks, etc. The exhaust pipes of the aforementioned equipment require the installation of silencers that are structurally lightweight and easier to install.
Our factory designs a range of deaerators, back-pressure steam turbines, and other series products tailored to different noise reduction requirements, meeting customer needs. The above exhaust noise dampeners meet the requirements of the "Industrial Enterprise Noise Hygiene Standard" and have been widely used domestically. They are used for the N3 type steam turbine, 20T/H low-pressure boiler superheater steam exhaust. The boiler pressure is 13at, with a steam evaporation capacity of 20T/H and an exhaust steam volume of 10T/H.
