A mixed flow pipe with a sound damping device
By installing a silencer in the mixing pipe, whistling noise is eliminated, the air-fuel ratio is increased, and equipment noise and harmful emissions are reduced. This method is suitable for mixing pipes with silencers.
CN224479433UActive Publication Date: 2026-07-10VALPO ENERGY & ENVIRONMENT TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- VALPO ENERGY & ENVIRONMENT TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
When the mixing pipe is in operation, it resonates because the vibration frequency is close to the equipment's natural frequency, resulting in a whistling sound and a decrease in the air-fuel ratio, which affects the equipment's efficiency.
Method used
A silencing device, including annular or rectangular silencing plates, is installed in the mixing tube to eliminate whistling by increasing airflow disturbance at the throat of the diffuser.
Benefits of technology
It effectively eliminates whistling noise, reduces equipment noise, increases the air-fuel ratio, reduces the CO and NOx content in flue gas, and lowers production costs.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224479433U_ABST
Abstract
The utility model provides a mixed flow pipe with silencing device, it includes casing, reducer, silencing device, gradually expands the pipe and turbulence impeller, the big mouth end of gradually expands the pipe is fixed in the first end end of casing, the small mouth end of gradually expands the pipe is arranged in the inside of casing, the big mouth end of gradually expands the pipe is fixed on the second end end opposite with first end of casing, the small mouth end of gradually expands the pipe is arranged in the inside of casing and is opposite with the small mouth end of gradually expands the pipe but does not contact, the silencing device is detachably fixed in the small mouth end end of gradually expands the pipe.
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