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Multistage deep sea mixture pump with axial force transmission structure

A technology of axial force and mixed pump, which is applied in radial flow pumps, pumps for special fluids, components of pumping devices for elastic fluids, etc. Use installation and other issues to achieve the effect of improving comprehensive performance indicators, improving performance degradation, and improving cavitation resistance

Active Publication Date: 2018-08-31
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its poor operation under high gas content conditions, it is rarely used in subsea mixed transportation systems; and when multi-stage pumps are working, the liquid pressure on both sides of the impeller is different, and the pressure on the inlet side is lower , under the action of pressure difference, an axial thrust to the inlet side will be generated, and the impeller will be displaced under this force, so the impeller needs to be positioned axially. This method is more suitable for single-stage pumps, but for the deep-sea multi-stage pumps of this project, not only does not use installation, but also because the shaft shoulder increases the cross-sectional area of ​​the main shaft, more rods are required for processing. material and increase the difficulty of processing

Method used

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  • Multistage deep sea mixture pump with axial force transmission structure
  • Multistage deep sea mixture pump with axial force transmission structure
  • Multistage deep sea mixture pump with axial force transmission structure

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] The invention provides a multi-stage deep-sea mixed transport pump with an axial force transmission structure, such as Figure 1 to Figure 8 As shown, it includes a cylindrical pump casing 1, the two ends of the pump casing 1 are respectively fixedly provided with an inlet pump cover 2 and an outlet pump cover 3, and the other end of the outlet pump cover 3 is fixedly connected with an outlet connecting pipe 4, and the outlet pump cover 3 is coaxially provided with an outlet bearing seat 5 connecting the pump casing 1 and the outlet connecting pipe 4, and the other end of the inlet pump cover 2 is fixedly connected with the inlet connecting pipe 6, the bearing box 7 and the motor 8 in turn, and the upper end of the inlet pump cover 2 The inlet bearing seat 9 connecting the pump casing 1 and the inlet connecting pipe 6 is arranged coaxi...

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Abstract

The invention discloses a multistage deep sea mixture pump with an axial force transmission structure. The pump comprises a pump case. Two ends of the pump case are fixedly provided with an inlet pumpcover and an outlet pump cover. The other end of the outlet pump cover is fixedly connected with an outlet connecting pipe. The outlet pump cover is coaxially provided with an outlet bearing pedestal. The other end of the inlet pump cover is fixedly connected with an inlet connecting pipe, a bearing box, and a motor. The inlet pump cover is coaxially provided with an inlet bearing pedestal. The bearing box is internally provided with a bearing box shaft. One end of the bearing box, far away from a motor, extends into the inlet connecting pipe. The pump case is internally provided with a pumpshaft. One end of the pump shaft extends into the inlet connecting pipe and is connected with the bearing box by a shaft, and the other end of the pump shaft is in the outlet bearing pedestal. A plurality of stages of static pressure expanders are uniformly sleeved on the pump shaft along an axial direction in sequence. Ends of the pressure expanders, close to the inlet pump cover, are provided with closed impellers which are fixedly coupled with the pump shaft in a cooperated manner. A thrust collar is arranged between a first stage impeller and the inlet bearing pedestal. The pump is high inoperation efficiency under a working condition of high gas content, and the pump is easy to process and install.

Description

technical field [0001] The invention belongs to the technical field of fluid machinery and engineering equipment, and in particular relates to a multistage deep-sea mixed transportation pump with an axial force transmission structure. Background technique [0002] With the rapid development of economy and industry in all countries in the world, the demand for mineral resources such as oil and gas is increasing day by day, while land mineral resources are decreasing day by day. As the last undeveloped area in the world, the deep sea has very large mineral resources reserves. It is rich and has caused scientists from all over the world to study it. [0003] The deep-sea oil and gas production and transportation technology studies how to collect and transport the rich oil and gas resources on the seabed to the sea surface, and the mining technology that lifts oil and gas resources from the seabed to the sea surface is the core technology of deep-sea production and transportatio...

Claims

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Application Information

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IPC IPC(8): F04D1/08F04D7/04F04D13/10F04D29/44F04D29/046F04D29/044F04D29/20F04D31/00
CPCF04D1/08F04D7/04F04D13/10F04D29/044F04D29/046F04D29/0462F04D29/20F04D29/448F04D31/00
Inventor 孙帅辉罗兴锜郭鹏程张乐福李晨昊宋宇航闫思娜
Owner XIAN UNIV OF TECH
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