A full-wall heating double-speed helical pseudoplastic fluid pumping device and method

Abstract

Provided are a full-wall-face heating double-speed spiral pseudoplastic fluid pumping device and method. Three parts of a power and power transmission module, a heating module and a spiral shearing and conveying module are included. The heating module carries out heating on fluid from the surface of a spiral device, another high-temperature heat conducting oil branch enters into the position between a cylinder body wall face and a cylinder body heat insulation layer, heating on the fluid on the cylinder body wall face is achieved, accordingly, the effect of full-wall-face efficient heating is achieved, the heating efficiency of pseudoplastic fluid is greatly improved, and the viscosity of the pseudoplastic fluid is lowered. A spiral shearing and conveying device can achieve fluid conveying and apply shearing speeds on the fluid at the same time, and shear thinning effect is achieved. Different shearing speeds can be achieved on the pseudoplastic fluid through a low-speed spiral vane and a high-speed spiral vane, meanwhile, by matching of a large spiral device and a small spiral device, certain negative pressure is formed in a cavity in a forced mode, flowing of the pseudoplastic fluid is achieved, and the pumping effect of the pseudoplastic fluid is improved.

Description

technical field [0001] The invention relates to a pseudoplastic fluid pumping device, in particular to a full-wall heating double-speed spiral pseudoplastic fluid pumping device and method. Background technique [0002] Pseudoplastic fluids are ubiquitous in industrial applications, such as heavy crude oil, polymer solutions, colloidal polymers, etc., which have the characteristics of high viscosity and poor fluidity. During the filling process of pseudoplastic fluids through circular pipes, pipe resistance exists. The shortcomings of large size and high energy consumption show poor pumping performance. Therefore, most of the existing fluid pumping equipment need to be equipped with larger power devices, such as: when using hydraulic pressure as power to transport heavy crude oil, it is necessary to provide higher delivery pressure. On the other hand, pseudoplastic fluid has good viscosity-temperature characteristics and shear thinning effect, that is, the viscosity of pseu...

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Problems solved by technology

[0003] 1) Although the pseudoplastic fluid has good viscosity-temperature characteristics, most of the pseudoplastic fluid is a colloidal dispersion system with poor thermal conductivity. During the heating process, there are serious inhomogeneities. To achieve uniform heating of the pseudoplastic fluid, it is necessary to It takes a long time, and the equipment and methods in this area are lacking;

[0004] 2) Most of the existing pseudoplastic fluid delivery pumps are cylindrical cavity structures. During the flow process of pseudoplastic fluid, there is only a radial shear rate, and the effect of shear thinning is limited. Pseudoplastic fluid Still exhibit high viscosity, hindering the development of pseudoplastic fluid pumping technology

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