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Variable load adjusting device and seawater desalination system and method

A regulating device and variable load technology, which is applied in chemical instruments and methods, seawater treatment, water/sewage treatment, etc., can solve the problems of high energy consumption and low energy utilization rate, and achieve improved recovery rate, increased pressure and water production , the effect of increasing displacement

Pending Publication Date: 2016-12-07
赛腾机电科技(常州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a variable load regulating device and a seawater desalination system to solve the technical problems of high energy consumption and low energy utilization under the condition of energy input fluctuations existing in the existing seawater desalination system
[0005] The purpose of the present invention is also to provide a seawater desalination method to solve the technical problems of high energy consumption and low energy utilization under the condition of energy input fluctuations in the existing seawater desalination method

Method used

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  • Variable load adjusting device and seawater desalination system and method
  • Variable load adjusting device and seawater desalination system and method

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Embodiment 1

[0043] figure 1 It is a schematic structural diagram of the variable load regulating device provided by Embodiment 1 of the present invention. see figure 1 As shown, this embodiment provides a variable load regulating device, including a hydraulic axial piston pump 101, an energy recovery device 102, a frequency converter 103, a double-shaft extension motor 104 and a control device 109, and the control device 109 and the frequency converter 103 is electrically connected, and the frequency converter 103 is electrically connected with the double-shaft motor 104 for adjusting the speed of the double-shaft motor 104; The transmission shafts are connected, and the secondary shaft extension end of the double shaft extension motor 104 is connected with the hydraulic energy output end of the energy recovery device 102; the control device 109 is electrically connected with the hydraulic axial plunger pump 101, and is used to control the hydraulic axial The displacement of the plunger...

Embodiment 2

[0049] figure 2 It is a schematic structural diagram of the seawater desalination system provided by Embodiment 2 of the present invention. see figure 2 As shown, this embodiment provides a seawater desalination system, including a raw water tank 105, a feed water pump 106, a pretreatment device 107, a reverse osmosis membrane group 108 and a variable load adjustment device, wherein the variable load adjustment device is provided in Embodiment 1 Variable load adjustment device. The raw water tank 105 is connected to the water inlet of the feed water pump 106, and the water outlet of the feed water pump 106 is connected to the input end of the pretreatment device 107. The pretreatment device 107 can remove impurities such as colloids, suspended solids and bacteria in the raw seawater, and pre The output end of the processing device 107 is connected with the water inlet of the hydraulic plunger pump 101, the water outlet of the hydraulic plunger pump 101 is connected with th...

Embodiment 3

[0063] A seawater desalination method provided in Embodiment 3 of the present invention is a seawater desalination method using the seawater desalination system provided in Embodiment 2, comprising the following steps:

[0064] (1) The raw seawater in the raw water tank 105 enters the pretreatment device 107 through the feedwater pump 106. The pretreatment device 107 can remove impurities such as colloids, suspended solids, and bacteria in the raw seawater. The plunger pump 101 enters the reverse osmosis membrane group 108;

[0065] (2) The reverse osmosis membrane group 108 desalinizes the original seawater, and the ultraviolet sterilizing equipment 110 sterilizes the fresh water flowing out from the outlet of the reverse osmosis membrane group 108; The hydraulic energy of the high-pressure concentrated water flowing out of the outlet is transferred to the raw seawater, and the low-pressure concentrated water is discharged at the same time;

[0066] (3) The variable load adj...

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Abstract

The invention relates to the technical field of seawater desalination, in particular to a variable load adjusting device and a seawater desalination system and method. The variable load adjusting device comprises a water hydraulic axial plunger pump, an energy recycling device, a frequency converter, a double shaft extension motor and a control device. The control device is electrically connected with the frequency converter. The frequency converter is electrically connected with the double shaft extension motor and used for adjusting the rotating speed of the double shaft extension motor. The main shaft extension end of the double shaft extension motor is connected with a driving shaft of the water hydraulic axial plunger pump through a coupler, the auxiliary shaft extension end of the double shaft extension motor is connected with the water hydraulic energy output end of the energy recycling device, and the control device is electrically connected with the water hydraulic axial plunger pump and used for controlling the discharge capacity of the water hydraulic axial plunger pump. The seawater desalination system comprises the variable load adjusting device. The invention further provides a seawater desalination method. The recycling rate of the system can be adjusted, and the continuous working ability and the adaptive capacity of the system for external energy input fluctuation are improved on the premise of lowering energy consumption.

Description

technical field [0001] The invention relates to the technical field of seawater desalination, in particular to a variable load regulating device, a seawater desalination system and method. Background technique [0002] Fresh water is an indispensable basic resource for human life and industrial production. Seawater desalination technology has been widely used in many coastal areas and islands that lack fresh water. At present, more than 300 million people in the world are using seawater desalination. Seawater desalination is a technology that consumes a lot of energy. Using clean energy such as solar energy and wind energy to power the seawater desalination system is very meaningful for occasions far away from conventional energy sources such as power grids. Clean energy such as solar energy and wind energy has unstable characteristics. The conventional seawater desalination system requires a stable power supply and is sensitive to the fluctuation of the power supply. When ...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F9/08B01D61/06B01D61/08B01D61/22B01D61/20C02F103/08C02F1/44C02F1/32C02F1/50
CPCB01D61/06B01D61/08B01D61/20B01D61/22C02F9/00C02F1/441C02F1/50C02F1/32C02F2103/08Y02A20/131
Inventor 孟力程振华杨康定金兰
Owner 赛腾机电科技(常州)有限公司
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