Full-sealing type two-screw pump and high-pressure balancing rotor

Abstract

The invention discloses a full-sealing type two-screw pump and high-pressure balancing rotor, which comprises a driving case, a liquid inlet, a liquid outlet, a rotary ring holder, a baffle ring, a retaining notch, a static ring holder, a notch groove, a friction ring, a rotary ring, an anti-rotation pin bolt, a static ring, a locating pin and a lubricating gap. A mechanical driving box and a liquid driving box are arranged in the driving case; one ends of a first output driving shaft and a second output driving shaft in the mechanical driving box extend into the liquid driving box; a right-handed screw blade and an inverted screw blade are arranged on one ends of the first output driving shaft and the second output driving shaft in a stagerring way; and wear-resistant layers are arrangedbetween the right-handed screw blade and an inner side wall of the liquid driving box as well as the inverted screw blade and the inner side wall of the liquid driving box. The full-sealing type two-screw pump and high-pressure balancing rotor provided by the invention is simple in structure, reasonable and reliable in structure design, and capable of the popularized and applied widely.

Description

【Technical field】 [0001] The invention relates to the technical field of screw pumps, in particular to the technical field of sealing devices for screw pumps. 【Background technique】 [0002] In the traditional sealing device, there are static sealing and moving sealing. It is easier to solve the sealing when static, but there are many problems in the running sealing, especially on some pump bodies, due to the transmission device and the liquid delivery part. There is movement between the two chambers, and a motion seal is required for sealing between the two chambers. The general seal will bring the impurity particles inside the liquid delivery chamber into the transmission device through the sealed gap, polluting the lubricating oil inside, and processing the mechanical parts at the same time. Wear and tear shorten the service life of the equipment. In view of this situation, it is necessary to improve the design of the motion seal to avoid the above problems. Poor perform...

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Problems solved by technology

[0002] In the traditional sealing device, there are static sealing and moving sealing. It is easier to solve the sealing when static, but there are many problems in the running sealing, especially on some pump bodies, due to the transmission device and the liquid delivery part. There is movement between the two chambers, and a motion seal is required for sealing between the two chambers. The general seal will bring the impurity particles inside the liquid delivery chamber into the transmission device through the sealed gap, polluting the lubricating oil inside, and processing the mechanical parts at the same time. Wear and tear shorten the service life of the equipment. In view of this situation, it is necessary to improve the design of the motion seal to avoid the above problems. Poor performance, very easy to wear, it is necessary to carry out research and design on the spiral blade profile

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