Vertical self-priming pump and vertical self-priming pump with filtration device
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- WORLD CHEM CO LTD
- Publication Date
- 2009-05-06
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 1 Figure 2 Figure 3
Abstract
Description
technical field
[0001] The present invention relates to a vertical self-priming pump and a vertical self-priming pump with a filter device. self-priming pump. Background technique
[0002] In the field of chemistry and other fields, filtration devices are generally used as means for removing impurities from various types of liquids. Among them, as a filter device equipped with a pump that sucks liquid stored in a container, etc., filters it with a filter, and then sends the liquid to a subsequent process, or returns to the aforementioned container for circulation, there are known devices equipped with There is a type of filter device with a push-in type back pressure valve (see Patent Documents 1 and 2, etc.).
[0003] On the other hand, a self-priming chemical pump is known as a valveless self-priming pump (see Patent Document 3, etc.).
[0004] In the filter devices of the forms of Patent Documents 1 and 2, when replacing the filter, it is necessary to extract the liqui...