一种潮流能直驱式反渗透海水淡化低转速柱塞泵

杨友胜 1; 2; 纪朋祥 1; 曾祥峰 3; 方继根 4; 吴进军 4

doi:10.7652/xjtuxb202004004

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一种潮流能直驱式反渗透海水淡化低转速柱塞泵

更新时间：2025-07-09

- 一种潮流能直驱式反渗透海水淡化低转速柱塞泵
- A Low Speed Piston Pump Directly Driven by Tidal Current Energy for Reverse Osmosis Desalination
- 西安交通大学学报 2020年54卷第4期页码：27-34
- 作者机构：
  
  1. 中国海洋大学工程学院,山东,青岛,266100
  2. 哈尔滨工程大学水下机器人技术国防重点实验室,哈尔滨,150001
- 作者简介：
- 基金信息：
  
  : 2019-10-09。作者简介: 杨友胜(1976-),男,副教授。基金项目: 国家自然科学基金资助项目(51475197);山东省重点研发计划资助项目(2017 GGX30106);山东省自然科学基金资助项目(ZR2018MEE023)
- DOI：10.7652/xjtuxb202004004
  中图分类号： TH137
- 网络首发：2020-04-10，
  
  纸质出版：2020
- 稿件说明：
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杨友胜 1, 2, 纪朋祥 1, 等. 一种潮流能直驱式反渗透海水淡化低转速柱塞泵[J]. 西安交通大学学报, 2020,54(4):27-34.

A Low Speed Piston Pump Directly Driven by Tidal Current Energy for Reverse Osmosis Desalination[J]. 2020, 54(4): 27-34.
杨友胜 1, 2, 纪朋祥 1, 等. 一种潮流能直驱式反渗透海水淡化低转速柱塞泵[J]. 西安交通大学学报, 2020,54(4):27-34. DOI： 10.7652/xjtuxb202004004.

A Low Speed Piston Pump Directly Driven by Tidal Current Energy for Reverse Osmosis Desalination[J]. 2020, 54(4): 27-34. DOI： 10.7652/xjtuxb202004004.

摘要

针对潮流能直驱式反渗透海水淡化系统中

海水液压泵与水轮机转速不配比问题

提出了一种低转速、高容积效率的动外壳式多作用径向柱塞泵方案。该泵由动外壳、缸体、配流阀、柱塞组件、液体弹簧、管道轴和调压装置等组成。工作时

潮流能水轮机直接驱动外壳

多排错位轴对称的柱塞组件在液体弹簧的作用下紧贴外壳内壁

沿内壁多作用曲线相对缸体孔做往复运动

通过配流阀完成吸压海水。该泵利用单转多次作用方式

增加柱塞运动频率与速度

补偿低转速下因高压差产生的泄漏; 利用动外壳式代替动缸体式或动斜盘式

将泵直接置于水轮机内

简化了系统结构; 采用分组轴对称布置柱塞

消除了径向不平衡力; 采用液体弹簧复位

使得复位迅速

安全可靠。仿真结果表明:该泵排量为202.9 mL/r

额定转速为50 r/min

额定压力为8 MPa; 在额定工况下

当柱塞副单边间隙为10 μm时

输出流量约为9.8 L/min

容积效率为96.6%

流量脉动为1.92%; 配流阀启闭动作协调

单阀最大配流量为2.0 L/min; 在保证容积效率下

额定转速降低至已有水液压轴向柱塞泵产品的5%左右。该柱塞泵可应用于以潮流能直驱的反渗透海水淡化系统、发电系统等核心能量转换设备。

Abstract

A multiple-action radial piston pump scheme with a revolving outer ring featuring low speed and high volumetric efficiency is proposed to solve the problem of rotating speeds mismatch between the seawater hydraulic pump and the hydro-turbine in the reverse osmosis desalination system driven by tidal current energy. The pump is composed of a moving shell

a cylinder

a distributing valve

a plunger component

a liquid spring

a pipeline shaft

and a pressure regulator

etc. When the pump is working

the tidal current energy hydro-turbine drives the shell directly and the multi-row misaligned axisymmetric plunger component is closely attached to the inner wall of the shell under the action of the liquid spring

moves reciprocally along the multi-action curve of the inner wall relative to the cylinder hole

and completes seawater suction and compression through the distribution valve. The pump reali-es multiple actions within single rotation to raise the frequency and velocity of the pist

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references

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