Water hammer-proof air valve and water hammer-proof exhaust method for in-use pipeline
US10690262B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2016 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Aug 11, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7436
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A water hammer-proof air valve that has a valve body and a bonnet, that are fixedly connected, a valve opening is provided on the valve body, and a high-speed intake and exhaust device is provided in an inner cavity of the valve body. A bonnet opening is provided on the bonnet, an output end of the high-speed intake and exhaust device penetrates the bonnet opening and is communicated with a high-speed exhaust throttling device for limiting an exhaust amount of gas of the high-speed intake and exhaust device, an output end of the high-speed exhaust throttling device is communicated with an outside air, and a trace exhaust device for discharging the gas separated out from the pipeline to the outside through the high-speed exhaust throttling device after the high-speed intake and exhaust device closes the valve is further provided in the high-speed intake and exhaust device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.