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Rotatory variable displacement pump

A variable volume, rotating shaft technology, applied in the direction of rotary piston pumps, rotary piston machines, pumps, etc., can solve the problems of easy wear, short service life, difficult processing, etc., to expand the application field, improve the service life, The effect of improving the conveying efficiency and the range of conveying slurry

Inactive Publication Date: 2013-09-25
宜兴市宙斯泵业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the baffle has a radial gap, which is easy to break and has a short service life. It is difficult to guarantee the shape and position tolerance during processing, the processing is difficult, the leakage is large, and it is easy to wear

Method used

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  • Rotatory variable displacement pump
  • Rotatory variable displacement pump
  • Rotatory variable displacement pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: A rotary variable volume pump, including a cylindrical pump casing 003 with symmetrical inlet and outlet ports (001, 002) on the left and right sides, and the inner shaft hole of the end cover 004 at both ends of the pump casing 003 The central rotating shaft 005, which is actuated and sealed, is sleeved on the central rotating shaft 005 and rotates with the rotating shaft 005 and is sealed and fixedly connected to the variable volume runner 006. When the runner 006 rotates, it slides and fits with the inner wall of the pump casing 003, and the pump casing 003 is fixed with a partition plate 007 that separates the inner cavity from left to right. The inlet and outlet ports (001, 002) are symmetrically placed on the pump casing 003 outside the partition plate 007. 005 passes through the middle hole, and the variable volume runners 006 are set to two, which are correspondingly arranged on the left and right sides of the middle partition plate 007. The opposit...

Embodiment 2

[0028] Embodiment 2: Referring to Embodiment 1, the opposite surface of the guide groove 031 and the through groove 071 is provided with an axial discharge groove 009 for connecting the pump chambers at both ends, and / or a sliding baffle that snaps into the through groove 071 The bottom or side of 008 is provided with an axial discharge groove 009 for connecting the pump chambers at both ends.

Embodiment 3

[0029] Embodiment 3: Referring to Embodiment 1, a layer of wear-resistant layer 010 is inlaid or / and inlaid with a layer of wear-resistant layer 010 on one side of the negative pressure area of ​​the sliding baffle 008, and there is an axial extension section 074 in the middle of both sides of the partition plate 007, and the axial extension An axial through chute 071 is provided on the extension section 074 at the same position as the axial through chute 071 of the partition plate 007 .

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Abstract

A rotatory variable displacement pump relates to the field of delivery pump manufacture, and especially relates to a rotatory displacement pump. A middle separating disc which separates an inner cavity into a left part and a right part is fixedly arranged in a pump casing, a liquid inlet and a liquid outlet are symmetrically disposed on the pump casing outside the middle separating disc, the middle of the middle separating disc is opened with a middle hole for a center rotating shaft to pass through, and two variable displacement rotating wheels are respectively arranged on the left side and the right side and corresponded to each other; each opposite face of the two variable displacement rotating wheels is composed of a high end face, a low end face and a spiral curved surface connecting the two end faces in spiral transition connection, the curved surfaces of the two opposite faces are complementary, the high end face of one opposite face is corresponding to the low end face of the other opposite face, and the high end face of one opposite face and the low end face of the other opposite face are arranged at a stagger angle of 180 degrees; the periphery of the middle separating disc is opened with a hole-through groove, a slide damper which is pushed to reciprocate by the rotation of the rotating wheels is snapped into the hole-through groove, and the slide damper is matched with the opposite faces of the rotating wheels when contacting with the opposite faces of the rotating wheels; and the two sides of the groove of the middle separating disc are respectively opened with an inlet groove and an outlet groove, one side of the slide damper corresponding to the inlet groove is a negative pressure zone, and the side of the slide damper corresponding to the outlet groove side is a high-pressure zone.

Description

technical field [0001] The invention relates to the field of conveying pump manufacture, in particular to a rotary displacement pump. Background technique [0002] At present, centrifugal pumps are generally used as conveying pumps on the market, but the conveying efficiency of centrifugal pumps is lower than that of positive displacement pumps, and the effect of conveying high-viscosity liquids and slurries containing solid phase materials is poor, and the damage to the pump body is large, which is difficult to meet Requirements, while the rotary positive displacement pump currently used on the market, its inner cavity generally uses the rotation of a conical ring or a sine wave ring to change the volume of the pump, and the pumping is achieved through gradual compression of the volume, and the linear velocity of the liquid in the pump Low, less scouring wear on the pump, unique advantages in conveying high-viscosity liquids, slurry containing solid-phase materials, and low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C13/00F04C2/32
Inventor 蒋龙福王岳平
Owner 宜兴市宙斯泵业有限公司