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High-pressure double-screw pump

A twin-screw pump, high-pressure technology, applied in the direction of pumps, pump components, rotary piston pumps, etc., can solve the problems of long research and development time, large capital investment, low service life, etc., to improve reliability and safety, and reduce costs cost, effect of improving stability

Inactive Publication Date: 2017-11-24
黄山市威格狮泵业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the pressure of the conventional twin-screw pump cannot exceed 4.0Mpa during the process of conveying the medium. Under long-term continuous conveying, due to the bending deformation of the main and driven shafts, the vibration of the pump equipment is large, and the bearings, mechanical seals, etc. generate heat. Seriously, greatly reducing the service life of the pump
In order to solve the above problems, the conventional method is: 1. Reduce the length of the main and slave shafts and reduce their flexibility, but this way of conveying pressure is small, the self-priming and boosting capabilities of the equipment are poor, and it cannot adapt to high viscosity. material transport
2. Improve the material of the main and slave shafts to increase their strength, but this method takes a long time to develop and invests a lot of capital
However, this method is often due to human negligence, forgetting to turn on the lubricating oil pump, resulting in accidents such as burning shafts and mechanical seal damage.
At the same time, this method treats the symptoms but not the root cause, and fails to solve the problem fundamentally.

Method used

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Embodiment Construction

[0020] combine Figure 1-4 A high-pressure twin-screw pump shown includes a driving shaft 1 and a driven shaft 2 arranged in the pump casing. Helical teeth are arranged on the driving shaft 1 and the driven shaft 2 to form a screw. The driving shaft 1 and the driven shaft 2 The transmission connection is formed by connecting gear sets at both ends. Connecting gear set can adopt spur gear set, herringbone gear set etc. But a better way is that the two ends of the driving shaft 1 and the driven shaft 2 form a transmission connection through two sets of helical gears 11 meshing with each other. This can not only increase the bearing load of the connected gear set, but also solve the problems of difficult processing of the herringbone gear set, difficult clearance adjustment, and excessive clearance between the master and slave shafts.

[0021] One end of the drive shaft 1 is a power connection end 3 , and the other end is provided with a lubricating oil pump 4 driven by the dri...

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Abstract

The invention relates to pump equipment, and aims to provide a high-pressure double-screw pump with high stability. According to the technical scheme adopted by the invention, the high-pressure double-screw pump comprises a drive shaft and a driven shaft arranged in a pump shell, and further comprises a pipeline, wherein one end of the drive shaft is a power connecting end, and the other end of the drive shaft is equipped with a lubricating oil pump driven by the drive shaft; one end of the pipeline is connected with a lubricating oil outlet of the lubricating oil pump; and the other end of the pipeline is opposite to a to-be-lubricated position of the high-pressure double-screw pump. The high-pressure double-screw pump avoids influences caused by manual misoperation, realizes forced lubricating of joint parts of screws, and greatly improves operation stability of the double-screw pump.

Description

technical field [0001] The invention relates to pump equipment, in particular to a high-pressure twin-screw pump. Background technique [0002] The screw pump is a displacement rotor pump, which relies on the volume change of the sealed cavity formed by the screw and the bushing to suck and discharge the liquid. Screw pumps are divided into single screw pumps, double, three and five screw pumps according to the number of screws. The screw pump is characterized by stable flow, small pressure pulsation, self-priming ability, low noise, high efficiency, long life and reliable operation. [0003] At present, the pressure of the conventional twin-screw pump cannot exceed 4.0Mpa during the process of conveying the medium. Under long-term continuous conveying, due to the bending deformation of the main and driven shafts, the vibration of the pump equipment is large, and the bearings, mechanical seals, etc. generate heat. Seriously, greatly reducing the service life of the pump. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/16F04C13/00F04C15/00
Inventor 潘爱军李棫沈世江
Owner 黄山市威格狮泵业有限公司
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