Desalted water system and method for intelligently removing organic matters

Abstract

An outlet of a water inlet pipeline is divided into two paths after passing through a pretreatment system, one path is communicated with an inlet of a first-stage reverse osmosis system through a first-stage reverse osmosis system electromagnetic valve, and the other path is communicated with an outlet of a second-stage reverse osmosis system through a second-stage reverse osmosis system electromagnetic valve. The other path is communicated with an inlet of a first-stage reverse osmosis system through an organic matter removal system electromagnetic valve and an organic matter removal system, an outlet of the first-stage reverse osmosis system is communicated with an inlet of a desalting water tank through a deep desalting system, and an inlet water organic matter online meter is arranged on the water inlet pipeline; according to the system and the method, the organic matter removing device can be automatically started when the organic matter content is increased due to the fact that the water quality of a water source changes, organic matter in water can be removed, and it is ensured that qualified desalted water is prepared.

Description

Technical Field

[0001] The present invention belongs to the technical field of desalted water preparation in the thermal power generation industry, and relates to a desalted water system and method for intelligently removing organic matter. Background Art

[0002] In thermal power plants, demineralized water is used for boiler water, boiler feed water, flushing water, and other important applications. When the water source is surface water, groundwater, river water, reservoir water, or reclaimed water, impurities are removed from the water source through a pretreatment + two-stage membrane demineralization system, a pretreatment + two-stage ion demineralization system, or a combination of pretreatment + membrane + ion demineralization system. This produces demineralized water that meets standards and is then distributed to various water points. Substandard demineralized water can deteriorate steam quality, increase unit corrosion, and seriously impact the safe operation of the units. Therefore, the preparation of demineralized water is crucial to power plants.

[0003] At present, desalted water preparation systems generally remove organic matter through pretreatment, and special organic matter removal equipment is rarely installed. When the water source and water quality change, the organic matter in the prepared desalted water exceeds the standard requirements. After the desalted water containing high organic content enters the boiler, the organic matter decomposes under high temperature and high pressure. Its products are mainly carboxylic acids, carbon dioxide and water. Common degradation products are formic acid, acetic acid, etc., which will lead to a decrease in the pH of water vapor in the thermal system and excessive hydrogen conductivity in the steam quality. In severe cases, it may even cause corrosion of the turbine, which is not conducive to the safe operation of the unit. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a desalted water system and method for intelligently removing organic matter. The system and method can automatically start the organic matter removal device when the organic matter content increases due to changes in the water quality of the water source, and can remove the organic matter in the water to ensure the preparation of qualified desalted water; when the water source and the organic matter content of the water quality are normal, the organic matter removal device is not started, and the system is operated according to the original treatment process to still produce desalted water of qualified quality. While ensuring the quality of the desalted water, the equipment can be optimized and resources can be saved.

[0005] To achieve the above-mentioned object, the present invention discloses a desalted water system for intelligently removing organic matter, comprising an inlet pipe, an inlet organic matter online meter, an organic matter removal system solenoid valve, a first-stage reverse osmosis system solenoid valve, a desalted water outlet organic matter online meter, an inlet pipe, a pretreatment system, a first-stage reverse osmosis system, an organic matter removal system, a deep desalination system, and a desalted water tank;

[0006] The outlet of the water inlet pipe is divided into two routes after passing through the pretreatment system, one of which is connected to the inlet of the first-level reverse osmosis system through the solenoid valve of the first-level reverse osmosis system, and the other is connected to the inlet of the first-level reverse osmosis system through the solenoid valve of the organic matter removal system and the organic matter removal system. The outlet of the first-level reverse osmosis system is connected to the inlet of the desalination water tank through the deep desalination system. An online meter for organic matter in the inlet water is provided on the water inlet pipe, and an online meter for organic matter in the desalination water outlet is connected to the pipe between the deep desalination system and the desalination water tank.

[0007] The further improvement of the desalted water system for intelligently removing organic matter of the present invention is:

[0008] Furthermore, the outlet of the desalted water tank is connected to a water point.

[0009] Furthermore, the control cabinet is connected to an online meter for organic matter in the inlet water, an electromagnetic valve of the organic matter removal system, an electromagnetic valve of the first-stage reverse osmosis system, and an online meter for organic matter in the desalted water outlet water.

[0010] Furthermore, the deep desalination system is a two-stage reverse osmosis system, an electrodialysis system, or a combination of a cathode tower, a carbon remover, an anion tower and a mixed bed system.

[0011] Furthermore, water tanks, pumps and safety filters are installed between the pretreatment system and the organic matter removal system, between the organic matter removal system and the first-level reverse osmosis system, between the first-level reverse osmosis system and the deep desalination system, and between the deep desalination system and the desalted water tank.

[0012] The present invention discloses a method for intelligently removing organic matter from desalted water, comprising the following steps:

[0013] Detect the organic matter content of the influent through the influent organic matter online meter;

[0014] When the organic matter content of the influent water is normal, the solenoid valve of the first-stage reverse osmosis system is controlled to open, and the solenoid valve of the organic matter removal system is controlled to close. The influent water passes through the pretreatment system, and then passes through the first-stage reverse osmosis system and the deep desalination system in sequence before entering the desalted water tank;

[0015] When the organic matter content of the incoming water is abnormal, the solenoid valve of the first-stage reverse osmosis system is controlled to be closed, and the solenoid valve of the organic matter removal system is controlled to be opened. The incoming water passes through the pretreatment system, and then passes through the organic matter removal system, the first-stage reverse osmosis system and the deep desalination system in sequence before entering the desalted water tank.

[0016] The further improvement of the desalted water method for intelligently removing organic matter of the present invention is:

[0017] Furthermore, the pretreatment system pre-treats water by one or a combination of coagulation, sedimentation, filtration and ultrafiltration.

[0018] Furthermore, the organic matter removal system uses ultraviolet oxidation to remove organic matter and is connected to an ozone removal system.

[0019] Furthermore, the deep desalination system is a two-stage reverse osmosis system, an electrodialysis system, or a combination of a cathode tower, a carbon remover, an anion tower and a mixed bed system.

[0020] Furthermore, water tanks, pumps and safety filters are installed between the pretreatment system and the organic matter removal system, between the organic matter removal system and the first-level reverse osmosis system, between the first-level reverse osmosis system and the deep desalination system, and between the deep desalination system and the desalted water tank.

[0021] The present invention has the following beneficial effects:

[0022] The intelligent desalted water system and method for removing organic matter described in the present invention detects the organic matter content of the incoming water through an online meter for inlet organic matter during specific operation. When the organic matter content increases due to changes in the water source and water quality, the organic matter removal system is automatically started, which can remove the organic matter in the water and ensure the preparation of qualified desalted water. When the organic matter content of the water source and water quality is normal, the organic matter removal system is not started, and the water is operated according to the original treatment process, and the desalted water is still of qualified quality. While ensuring the quality of the desalted water, the equipment can be optimized and resources can be saved. It should be noted that the present invention can maintain the preparation of qualified desalted water, thereby ensuring the water safety of the thermal system, ensuring the quality of steam, and avoiding a series of serious situations caused by the high organic matter content in the desalted water, such as pH reduction, excessive water vapor hydrogen conductivity, turbine corrosion, and other problems that are not conducive to the safe operation of the unit, thereby achieving the purpose of ensuring the safe operation of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a system structure diagram of the present invention.

[0025] Among them, 1 is the online meter for organic matter in the inlet water, 2 is the solenoid valve of the organic matter removal system, 3 is the solenoid valve of the first-stage reverse osmosis system, and 4 is the online meter for organic matter in the desalted water outlet. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] In the description of the present invention, it is to be understood that the terms “include” and “comprise” indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0028] It should also be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should be further understood that the term "and / or" as used in the present specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects are in an "or" relationship.

[0030] It should be understood that although the terms "first," "second," and "third" may be used to describe preset ranges in embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are merely used to distinguish one preset range from another. For example, without departing from the scope of embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0031] The word "if," as used herein, may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] The accompanying drawings illustrate various schematic diagrams of structures according to embodiments disclosed herein. These figures are not drawn to scale; for clarity, some details are exaggerated and some details may be omitted. The shapes of the various regions and layers shown in the figures, as well as their relative sizes and positional relationships, are merely exemplary and may deviate in practice due to manufacturing tolerances or technical limitations. Those skilled in the art may design regions / layers with different shapes, sizes, and relative positions as needed.

[0034] Example 1

[0035] refer to Figure 1 The intelligent desalination system for removing organic matter of the present invention includes an inlet pipe, an inlet organic matter online meter 1, an organic matter removal system solenoid valve 2, a first-level reverse osmosis system solenoid valve 3, a desalted water outlet organic matter online meter 4, an inlet pipe, a pretreatment system, a first-level reverse osmosis system, an organic matter removal system, a deep desalination system, a desalination water tank, a control cabinet and a water point;

[0036] The outlet of the water inlet pipe is divided into two routes after passing through the pretreatment system, one of which is connected to the inlet of the first-level reverse osmosis system through the solenoid valve 3 of the first-level reverse osmosis system, and the other is connected to the inlet of the first-level reverse osmosis system through the solenoid valve 2 of the organic matter removal system and the organic matter removal system. The outlet of the first-level reverse osmosis system is connected to the inlet of the desalination water tank through the deep desalination system. An inlet organic matter online meter 1 is provided on the water inlet pipe, and the pipe between the deep desalination system and the desalination water tank is connected to a desalted water outlet organic matter online meter 4, and the desalted water tank is connected to the water use point.

[0037] The control cabinet is connected to the inlet organic matter online meter 1, the organic matter removal system solenoid valve 2, the first-stage reverse osmosis system solenoid valve 3 and the desalted water outlet organic matter online meter 4.

[0038] During operation, when the organic matter content in the influent water is normal, the influent water passes through the pretreatment system, and then enters the primary reverse osmosis system and the deep desalination system in turn, and then enters the desalted water tank, and then is transported to the water use point; when the organic matter content in the influent water increases significantly and exceeds 50% of the normal value, the influent water passes through the pretreatment system, and then passes through the organic matter removal system, the primary reverse osmosis system and the deep desalination system in turn, and then enters the desalted water tank, and then is transported to the water use point.

[0039] In this embodiment, the pretreatment system performs pretreatment on water by one or a combination of coagulation, sedimentation (clarification), filtration and ultrafiltration.

[0040] In this embodiment, the organic matter removal system uses ultraviolet oxidation to remove organic matter, the wavelength of the ultraviolet light is 185nm, and an ozone removal system is also provided.

[0041] In this embodiment, the deep desalination system is a two-stage reverse osmosis system, an electrodialysis system, or one or a combination of a cathode tower, a carbon remover, an anion tower and a mixed bed system.

[0042] In this embodiment, a water tank, a pump and a safety filter are provided between the pretreatment system, the organic matter removal system, the primary reverse osmosis system, the deep desalination system and the desalted water tank.

[0043] In this embodiment, the control cabinet controls the opening and closing of the organic matter removal system solenoid valve 2 and the first-stage reverse osmosis system solenoid valve 3 according to the measured data of the influent organic matter online table 1 and the demineralized water effluent organic matter online table 4.

[0044] Example 2

[0045] refer to Figure 1 The present invention discloses a desalted water method for intelligently removing organic matter. The desalted water method for intelligently removing organic matter is implemented based on the desalted water system for intelligently removing organic matter. The desalted water system for intelligently removing organic matter includes an inlet organic matter online meter 1, an organic matter removal system solenoid valve 2, a first-level reverse osmosis system solenoid valve 3, a desalted water outlet organic matter online meter 4, an inlet pipe, a pretreatment system, a first-level reverse osmosis system, an organic matter removal system, a deep desalination system, a desalted water tank, a control cabinet, and a water point.

[0046] Specifically, the method for intelligently removing organic matter from desalted water comprises the following steps:

[0047] When the desalted water system of a power plant operates normally, qualified desalted water is prepared, and the organic matter content in the influent is read through the control cabinet. When it is a normal value, the control cabinet opens the solenoid valve 3 of the first-level reverse osmosis system and closes the solenoid valve 2 of the organic matter removal system. The influent water passes through the pretreatment system, the first-level reverse osmosis system and the deep desalination system in sequence and enters the desalted water tank, and then is sent to the water use point; when the water source or water quality changes, the organic matter content in the influent is read through the control cabinet. When the organic matter content is an abnormal value, the organic matter content in the influent increases significantly and exceeds 50% of the normal value, the control cabinet opens the solenoid valve 2 of the organic matter removal system and closes the solenoid valve 3 of the first-level reverse osmosis system. The influent water passes through the pretreatment system, the organic matter removal system, the deep desalination system and the electrodialysis system in sequence and is transported to the desalted water tank, and then is sent to the water use point.

[0048] Example 3

[0049] A computer device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, steps of the method for intelligently removing organic matter from desalted water are implemented, which, for example, comprises: detecting the organic matter content of the influent water through an influent organic matter online table 1; when the organic matter content of the influent water is normal, controlling the solenoid valve 3 of the primary reverse osmosis system to open, controlling the solenoid valve 2 of the organic matter removal system to close, and the influent water passes through a pretreatment system, and then sequentially passes through a primary reverse osmosis system and a deep desalination system before entering a desalted water tank; when the organic matter content of the influent water is abnormal, controlling the solenoid valve 3 of the primary reverse osmosis system to close, controlling the solenoid valve 2 of the organic matter removal system to open, and the influent water passes through the pretreatment system, and then sequentially passes through an organic matter removal system, a primary reverse osmosis system, and a deep desalination system before entering a desalted water tank. The memory may include internal memory, such as high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device. The processor, network interface, and memory are interconnected via an internal bus. This internal bus can be an Industry Standard Architecture bus, a Peripheral Component Interconnect Standard bus, an Extended Industry Standard Architecture bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. The memory is used to store programs. Specifically, the program can include program code, and the program code includes computer operating instructions. The memory can include internal memory and non-volatile memory, and provides instructions and data to the processor.

[0050] Example 4

[0051] A computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the intelligent desalination method for removing organic matter. For example, the steps include: detecting the organic matter content of the influent water using an influent organic matter online meter 1; when the organic matter content of the influent water is normal, controlling the solenoid valve 3 of the primary reverse osmosis system to open and the solenoid valve 2 of the organic matter removal system to close, so that the influent water passes through the pretreatment system, the primary reverse osmosis system, and the deep desalination system, and then enters the desalination water tank; when the organic matter content of the influent water is abnormal, controlling the solenoid valve 3 of the primary reverse osmosis system to close and the solenoid valve 2 of the organic matter removal system to open, so that the influent water passes through the pretreatment system, the organic matter removal system, the primary reverse osmosis system, and the deep desalination system, and then enters the desalination water tank. Specifically, the computer-readable storage medium includes, but is not limited to, volatile memory and / or non-volatile memory. The volatile memory may include random access memory and / or cache memory, etc. The non-volatile memory may include read-only memory, hard disk, flash memory, optical disk, magnetic disk, etc.

[0052] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media containing computer-usable program code.

[0053] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0054] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0055] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0056] Those skilled in the art will readily identify other embodiments of the present invention after considering the specification and disclosure of the invention. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0057] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A desalted water system for intelligently removing organic matter, characterized in that: It includes an inlet pipe, an inlet organic matter online meter (1), an organic matter removal system solenoid valve (2), a first-stage reverse osmosis system solenoid valve (3), a desalted water outlet organic matter online meter (4), an inlet pipe, a pretreatment system, a first-stage reverse osmosis system, an organic matter removal system, a deep desalination system and a desalted water tank; The outlet of the water inlet pipe is divided into two routes after passing through the pretreatment system, one of which is connected to the inlet of the first-stage reverse osmosis system through the first-stage reverse osmosis system solenoid valve (3), and the other is connected to the inlet of the first-stage reverse osmosis system through the organic matter removal system solenoid valve (2) and the organic matter removal system. The outlet of the first-stage reverse osmosis system is connected to the inlet of the desalination water tank through the deep desalination system. An inlet organic matter online meter (1) is provided on the water inlet pipe, and a desalination water outlet organic matter online meter (4) is connected to the pipe between the deep desalination system and the desalination water tank.

2. The intelligent desalinated water system for removing organic matter according to claim 1 is characterized in that: The outlet of the desalted water tank is connected to a water point.

3. The intelligent desalinated water system for removing organic matter according to claim 1 is characterized in that: The control cabinet is connected to an inlet organic matter online meter (1), an organic matter removal system electromagnetic valve (2), a first-stage reverse osmosis system electromagnetic valve (3) and a desalted water outlet organic matter online meter (4).

4. The intelligent desalinated water system for removing organic matter according to claim 1 is characterized in that: The deep desalination system is a two-stage reverse osmosis system, an electrodialysis system, or a combination of a cathode tower, a carbon remover, an anion tower and a mixed bed system.

5. The intelligent desalinated water system for removing organic matter according to claim 1 is characterized in that: Water tanks, pumps and safety filters are installed between the pretreatment system and the organic matter removal system, between the organic matter removal system and the first-level reverse osmosis system, between the first-level reverse osmosis system and the deep desalination system, and between the deep desalination system and the desalted water tank.

6. A method for intelligently removing organic matter from desalinated water, characterized in that: The desalinated water system for intelligently removing organic matter according to claim 1 comprises the following steps: The organic matter content of the influent is detected by the influent organic matter online table (1); When the organic matter content of the influent water is normal, the solenoid valve (3) of the primary reverse osmosis system is controlled to open, and the solenoid valve (2) of the organic matter removal system is controlled to close. The influent water passes through the pretreatment system, and then passes through the primary reverse osmosis system and the deep desalination system in sequence before entering the desalted water tank. When the organic matter content of the influent water is abnormal, the electromagnetic valve (3) of the primary reverse osmosis system is controlled to be closed, and the electromagnetic valve (2) of the organic matter removal system is controlled to be opened. The influent water passes through the pretreatment system, and then passes through the organic matter removal system, the primary reverse osmosis system and the deep desalination system in sequence before entering the desalted water tank.

7. The method for intelligently removing organic matter from desalinated water according to claim 6, characterized in that: The pretreatment system's pretreatment of water includes one or a combination of coagulation, sedimentation, filtration and ultrafiltration.

8. The method for intelligently removing organic matter from desalinated water according to claim 6, characterized in that: The organic matter removal system uses ultraviolet oxidation to remove organic matter and is connected to an ozone removal system.

9. The method for intelligently removing organic matter from desalinated water according to claim 6, characterized in that: The deep desalination system is a two-stage reverse osmosis system, an electrodialysis system, or a combination of a cathode tower, a carbon remover, an anion tower and a mixed bed system.

10. The method for intelligently removing organic matter from desalinated water according to claim 6, characterized in that: Water tanks, pumps and safety filters are installed between the pretreatment system and the organic matter removal system, between the organic matter removal system and the first-level reverse osmosis system, between the first-level reverse osmosis system and the deep desalination system, and between the deep desalination system and the desalted water tank.

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