What are the applications and scenarios for shock-absorbing throats?
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A shock-absorbing throat is a hollow rubber product used to provide a flexible connection between metal pipes. Shock-absorbing hoses are also known as rubber flexible joints, flexible rubber connectors, shock-absorbing hoses, bendable rubber joints, high-pressure rubber joints, and rubber shock absorbers. Uses: Connection to pumps and valves, pipes subject to significant vibration, and pipelines with frequent temperature changes. Suitable media: Seawater, fresh water, hot and cold water, drinking water, domestic sewage, crude oil, fuel oil, lubricating oil, refined oil, air, gas, steam, and granular or powdered substances. (The above is from Baidu Baike’s explanation.) I have never seen this component used in petrochemical companies; I have not encountered it at the inlet and outlet ends of pumps in such facilities, nor have I seen it in petrochemical engineering designs. I’m not sure if it is used in your companies or design institutes, and in what applications.
This is commonly used on large pipelines; you can go to the circulating water station to take a look – it’s possible that such devices are installed at the inlet and outlet of the circulating water pumps.
When used in circulating water, it serves to absorb shocks and also provides a small amount of pipeline compensation
I just went to the site to take a look, and indeed, as you said, the inlet and outlet of the circulation pump are equipped with shock-absorbing collars. However, no issues were found with the pipes of the process medium pump; it’s not clear whether it’s due to the nature of the medium or, as you mentioned, the pipe diameter.
Its scientific name is rubber expansion joint~~it can provide displacement compensation as well as help reduce vibration and noise~~
Moderator, do you know what other applications rubber expansion joints have in chemical plants besides large circulation water pumps?
Due to its compensating function, it is used in many places~~for example: small compressors, fan outlets, fire hoses, water supply and drainage systems~~