A series-parallel centrifugal pump
A centrifugal pump and parallel technology, applied in the field of centrifugal pumps, can solve the problems of heavy workload, uncontrollable work, affecting the maintenance efficiency of maintenance personnel, etc., and achieve the effect of improving service life, physical sealing performance and controllability.
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[0040] For ease of understanding, combined here Figure 1-13 Concrete components and workflow of the present invention are described as follows:
[0041] The present invention adopts such as Figure 1-13 The rotary valve body structure shown in the figure realizes the operation purpose of "one valve and two controls". To achieve the purpose of series-parallel operation relative to the pump body; in this way, on the one hand, the position of the switch part that could not be directly controlled manually is controlled by the valve core that also controls the switch component, which has stronger controllability, working stability and reliability. The performance can be greatly guaranteed, and at the same time, it also has a favorable impact on its actual service life; 30, the first liquid outlet flow channel 11 and even the connecting pipe 42 are moved to the outlet end of the pump body and communicate with each other to form an integral part, and then the pipe body 41 is used ...
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