One. Steam Turbine Muffler Application

Back-pressure turbine silencers are primarily used for the exhaust noise reduction of back-pressure, extraction back, pure condensing, extraction condensing, and industrial traction turbines. These silencers are mainly developed with resistive noise reduction in mind, being a device that allows airflow to pass through while effectively reducing noise. They can effectively control the noise sources of turbines.

Section 2: Turbine muffler structural type

This type of steam turbine exhaust silencer utilizes a through-hole design, incorporating a two-dimensional theoretical optimization of the resistive sound-absorbing channel structure. This takes advantage of the cross-sectional changes in the pipe to cause sound waves to propagate forward to the expansion chamber, reflect 180 degrees, and then interfere with each other, resulting in waves with equal amplitude and opposite phase, achieving an ideal sound absorption effect. The pressure loss in the exhaust gas is minimal, and the sound-absorbing panels made of metal sheets offer excellent resistance to water and oil. During operation, the pressure of the steam turbine does not increase, ensuring safe and reliable noise reduction.

Section 3: Turbine Silencer Selection

When ordering PQ type back pressure steam turbine exhaust silencers, the following information is required:

1. Turbine model, along with pressure and temperature parameters.

2. Steam Emission Volume.

3. Interface pipe diameter and wall thickness.

Four: Steam Turbine Exhaust Muffler Application

Turbine exhaust silencers are a type of exhaust noise suppressor, suitable for use in back-pressure turbines, extraction back-pressure turbines, pure condensing turbines, and extraction condensing turbines. These exhaust silencers not only possess noise reduction capabilities but also ensure that the pressure of the turbine does not increase during operation. Having been used by numerous power plants (stations) over a long period, these turbine exhaust silencers have received positive feedback.

Section 5: Silencer Principle

The steam turbine exhaust silencer is manufactured based on the principle of perforated diamond acoustic flow resistance. The acoustic inlet tube is of the through-hole type, utilizing perforated plates as acoustic resistance panels. The resistance panels form an acoustic flow structure, which improves the acoustic damping performance through the variation in the thickness of the diamond-shaped bending and channel acoustic absorption layers. It not only achieves high noise reduction but also has a broad frequency response and low air flow resistance, ensuring effective noise reduction without increasing the back pressure of the steam turbine.

Section 6: Silencer Ordering and Selection

When ordering a steam turbine exhaust silencer, the following information is required:

(1) Discharge rate (T/h), pressure, temperature.

(2) Installation Requirements (Vertical, Horizontal)

(3) Exhaust pipe outer diameter, wall thickness

Section 7: Specifications and Models

Turbine exhaust silencer, suitable for high temperature and high pressure

TA-type exhaust muffler, where TA indicates the small-hole muffler (small-hole type), suitable for high temperature and high pressure applications. It does not use sound-absorbing cotton material; instead, the muffler is surrounded by small holes. Gases enter from the bottom inlet and exit from all sides.

TA-3.82-10/57 Model Meaning: TA signifies the small hole exhaust muffler, 3.82 denotes the pressure of 3.82 Mpa, 57 indicates the interface outer diameter is 57mm, and 10 represents the exhaust volume of 10T/H.