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[Q&A] April 15, 2017

2017-04-14View Original

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Question: What is the \"air locking\" of a centrifugal pump? Answer: If a centrifugal pump is not filled with liquid before starting, air remains inside the pump casing. Since the density of air is much lower than that of liquid, the centrifugal force generated is small; as a result, the vacuum created at the inlet is not sufficient to draw liquid into the pump. In this case, even though the centrifugal pump is started, it cannot transport liquid, and this phenomenon is known as \"air locking\". http://bbs.hcbbs.com/static/image/hrline/4.gif Petrochemical Zone—New Ideas for Energy Saving: The “Creative Thinking” Campaign (Sponsors Wanted; Highest Returns Ever) http://bbs.hcbbs.com/thread-1666758-1-1.html Sponsors are being sought for this campaign; those interested can contact the event organizer. The Petrochemical Deep Processing Edition—sharing pictures of chemical equipment has started! A vast amount of wealth, as well as HaiChuan coins, are waiting for you to claim them: http://bbs.hcbbs.com/thread-1760733-1-1.html. There’s also a notice regarding the collection of chemical industry-related technical materials in the “Petroleum and Chemicals Section”: http://bbs.hcbbs.com/thread-1614796-1-1.html. Additionally, you can find this image here: http://bbs.hcbbs.com/hcdown/data/attachment/forum/201704/07/123053embbjkok61hz6vvz.jpg.thumb.jpg. [HaiXin Chemical Cup ★ Spring has arrived for HaiChuan Chemicals] – A compilation of posts featuring beautiful scenery from 2017; you can take a look at the photos of local landscapes uploaded by users from various places in your free time: http://bbs.hcbbs.com/thread-1766484-1-1.html
Reply #22017-04-15
The phenomenon in which a pump fails to build pressure due to residual gas inside it is called gas locking; when this occurs, the pump should be stopped immediately, the gas removed, and then restarted.
Reply #32017-04-15
There is air in the pump, resulting in low pressure and no flow
Reply #42017-04-15
If a centrifugal pump is not filled with liquid before starting, air remains inside the pump casing. Since the density of air is much lower than that of liquid, the centrifugal force generated is low; as a result, the vacuum created at the inlet is not sufficient to draw liquid into the pump, leading to an inability to draw in liquid after the pump is started. This phenomenon is known as air locking.
Reply #52017-04-15
Air locking is a phenomenon that occurs after a centrifugal pump is started: due to the presence of air inside the pump and its low density, the centrifugal force generated during rotation is weak. As a result, the low pressure created in the center of the impeller is not sufficient to draw liquid from the storage tank into the pump. Even though the pump has been started, it is unable to transport liquid; this indicates that the pump lacks self-priming capability. Therefore, it is necessary to fill the pump chamber with liquid before starting it.
Reply #62017-04-15
Air locking refers to the phenomenon where, when a centrifugal pump is started, if there is air inside the pump, the low density of air results in a weak centrifugal force generated upon rotation; as a result, the low pressure created in the center of the impeller is not sufficient to draw liquid from the storage tank into the pump, and thus the pump cannot transport liquid even though it has been started.
Reply #72017-04-15
The centrifugal pump was not primed before it was started, resulting in gas remaining inside the pump casing. As the impeller rotated, the centrifugal force generated by the air was insufficient to draw in the liquid
Reply #82017-04-15
Air locking refers to the phenomenon where, when a centrifugal pump is started, if there is air inside the pump, the low density of air results in a weak centrifugal force generated upon rotation; as a result, the low pressure created in the center of the impeller is not sufficient to draw liquid from the storage tank into the pump, and thus the pump cannot transport liquid even though it has been started.
Reply #92017-04-15
Leaking, no feeding. When a centrifugal pump is started, if there is air inside the pump, the low density of air results in a weak centrifugal force generated upon rotation; as a result, the low pressure created in the center area of the impeller is not sufficient to draw liquid from the storage tank into the pump. Therefore, even though the pump is started, it cannot transport liquid, and priming is required.
Reply #102017-04-15
Air locking is a phenomenon that occurs after a centrifugal pump is started: due to the presence of air inside the pump and its low density, the centrifugal force generated during rotation is weak. As a result, the low pressure created in the center of the impeller is not sufficient to draw liquid from the storage tank into the pump. Even though the pump has been started, it is unable to transport liquid; this indicates that the pump lacks self-priming capability. Therefore, it is necessary to fill the pump chamber with liquid before starting it.
Reply #112017-04-15
After the centrifugal pump is started, due to the presence of air inside the pump and its low density, the centrifugal force generated by rotation is weak; as a result, the low pressure created in the center area of the impeller is not sufficient to draw liquid from the storage tank into the pump. This is the phenomenon where the pump cannot transport liquid even after it has been started

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