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A control method, system, terminal equipment and medium for seawater desalination water production

A control method and technology of water production rate, applied in the direction of control/regulation system, multiple fluid ratio control, ratio control, etc., can solve the problems of reducing water production rate, increasing operating costs, wasting high-quality effluent, etc., to achieve enhanced sensitivity, The effect of improving monitoring accuracy

Active Publication Date: 2020-11-03
BEIJING JINKONG DATA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, at present, the adjustment methods for reducing seawater salinity in reverse osmosis technology are mostly one-way, with the gradual increase of electrical conductivity or the gradual decrease of water production rate as the control direction, which is not flexible enough and cannot respond to detailed changes in water production rate. By directly responding to the water production rate, the high-quality effluent at this stage is wasted to a certain extent, which relatively increases the operating cost and reduces the water production rate

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  • A control method, system, terminal equipment and medium for seawater desalination water production
  • A control method, system, terminal equipment and medium for seawater desalination water production
  • A control method, system, terminal equipment and medium for seawater desalination water production

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Embodiment 1

[0028] figure 1 It is a flow chart of a method for controlling water production from seawater desalination provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation of precisely controlling the quality of water produced in the process of seawater desalination. This method can be controlled by the control system of water production from seawater desalination implementation, the system can be implemented in software and / or hardware, see figure 1 The method for controlling water production from seawater desalination provided in this embodiment specifically includes the following steps:

[0029] Step 101. Obtain the conductivity of the water body at preset time intervals.

[0030] In this embodiment, the conductivity of the water body is usually used to represent the purity of water, and the conductivity is a number representing the ability of a solution to conduct electric current. The conductivity of pure water is very low. When the wate...

Embodiment 2

[0055] image 3 It is an operation flow chart of controlling the water production rate by conductivity in the control method of seawater desalination water production provided by Embodiment 2 of the present invention. This embodiment further optimizes step 103 on the basis of the above-mentioned embodiments. According to the judgment result And preset rules to adjust the valve opening value. It can be implemented by:

[0056] Step 201, Obtain the conductivity K of the water body according to the preset time interval t , current water production rate θ t , valve opening value P t and water production time t, according to the water conductivity K t , the valve opening value P t and the water production time t to update the conductivity function model; according to the current water production rate θ t , the valve opening value P t and the water production time t to update the water production rate function model.

[0057] Step 202, determine the conductivity K t Is it g...

Embodiment 3

[0091] Figure 4 Shown is the operation flow chart of the water production rate control conductivity in a control method of seawater desalination water production provided by Embodiment 3 of the present invention. This embodiment can be applied to the seawater desalination process. Step 103, according to the judgment result and preset The regulation adjustment valve opening value has been further optimized. It can be implemented by:

[0092] Step 301. Obtain the conductivity K of the water body according to the preset time interval t , current water production rate θ t , valve opening value P t and water production time t, according to the water conductivity K t , the valve opening value P t and the water production time t to update the conductivity function model; according to the current water production rate θ t , the valve opening value P t and the water production time t to update the water production rate function model.

[0093] Step 302, determine the conductiv...

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Abstract

The invention discloses a seawater desalting water production control method and system, a terminal device and a medium. The seawater desalting water production control method comprises steps of obtaining current conductivity according to a preset time interval, determining whether conductivity is greater than a conductivity threshold, regulating an opening degree of a valve according to a determination result and a preset rule. The seawater desalting water production control method and system, the terminal device and the medium solve a problem that the prior art is not flexible, a conductivity change detail cannot be reflected through a water production rate and, to a certain extent, quality water production in this stage is wasted. Furthermore, the seawater desalting water production control method and system, the terminal device and the medium can improve control conductivity monitoring accuracy and can increase sensitivity of water production ratio control.

Description

technical field [0001] Embodiments of the present invention relate to water resource treatment technologies, and in particular to a control method, system, terminal equipment and medium for seawater desalination water production. Background technique [0002] The shortage of fresh water resources has developed into a global problem. The situation of shortage of fresh water resources in my country is also severe, especially in some islands and brackish water areas. The shortage problem is of great significance to social development. [0003] At present, reverse osmosis seawater desalination has become the main method of seawater desalination because of its advantages of simple equipment, convenient operation, no phase change, high treatment efficiency and low energy consumption. The main function of reverse osmosis seawater desalination technology is to reduce the salinity of seawater. The most direct water quality parameter change is the conductivity of the water body. Usual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D11/13
CPCG05D11/135
Inventor 高静李银张兴玉郭斌
Owner BEIJING JINKONG DATA TECH