Method, device and system for determining sizes of stator and rotor of screw pump
A screw pump and rotor technology, applied in the field of determining the size of the stator and rotor, devices and systems, can solve the problems of large errors, improvement of conveying efficiency, unfavorable life extension of screw pumps, etc., so as to prolong the service life and improve the efficiency Effect
Active Publication Date: 2017-08-01
中联重科新材料科技有限公司
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Problems solved by technology
[0005] In the prior art, according to the actual use damage of the screw pump, the amount of compression between the stator and the rotor is adjusted according to experience, and the adjustment error is relatively large, which is not conducive to the extension of the life of the screw pump and the improvement of the delivery efficiency
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[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of patent protection of the present invention.
[0071] According to the working principle of the screw pump, the rotor is generally made of rigid material, and the stator is made of elastic material (such as rubber, etc.). There needs to be a pre-compression force between them, and the pre-compression force is generally measured by the no-load pre-compression amount of the screw pump; if the no-load pre-compression amount is too small, the contact part between the stator and the rotor of the screw ...
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The invention discloses a method, a device and a system for determining sizes of a stator and a rotor of a screw pump, so as to improve the efficiency of the screw pump and prolonging the service life of the screw pump. The determination method comprises steps: screw pumps with the same maximum load design value and different no-load pre-compression design values are subjected to service life testing and efficiency testing under a preset first load; the service life and the efficiency of each screw pump are compared, and to-be-corrected screw pumps are determined, wherein the to-be-corrected screw pumps are screw pumps with the best service life and efficiency combination in multiple screw pumps; under the preset maximum load design value, the pressure value of each pressure chamber formed between the stator and the rotor of the to-be-corrected screw pump is acquired; and according to the pressure value of each pressure chamber of the to-be-corrected screw pump and the preset stator compression modulus, the no-load pre-compression modulus correction value of the to-be-corrected screw pump is obtained.
Description
technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a method, device and system for determining the dimensions of a stator and a rotor of a screw pump. Background technique [0002] At present, the screw pump is widely used as a conveying mechanism in infrastructure construction such as transportation, energy, and construction. It plays a very important role in improving construction efficiency and ensuring project quality. [0003] In the existing technology, such as figure 1 as shown, figure 1 It is a structural schematic diagram of a screw pump in the prior art; the screw pump includes a rotor 01 and a stator 02; the stator 02 is wrapped on the outside of the rotor 01, and the stator 02 and the rotor 01 form a screw pump; the inner wall of the stator 02 is connected to the outer wall of the rotor 01 by sealing , to form a plurality of pressure chambers 03 between the inner side of the stator 02 and the outer sid...
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IPC IPC(8): G01B21/16
CPCG01B21/16
Inventor 裴杰陈元涛
Owner 中联重科新材料科技有限公司