Method for preventing corrosion during operation of circulating water

Through water quality analysis and multiple anti-corrosion methods, including pH adjustment, corrosion inhibitor addition and anode protection, the scaling and corrosion problems caused by impurities accumulation in the circulating water system are solved, and the efficient operation and life of the machine are achieved.

CN120288989APending Publication Date: 2025-07-11SHANDONG CHENGTAI NEW MATERIALS CO LTD
View PDF 8 Cites 0 Cited by

Patent Information

Application Number
CN202410040710.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-01-10
Publication Date
2025-07-11

AI Technical Summary

Technical Problem

The accumulation of impurities in the circulating water system causes scale accumulation in the machine, affecting the processing efficiency and accelerating corrosion, and shortening the machine life.

Method used

Through water quality analysis, pH adjustment, corrosion inhibitor addition, anode protection, redox control, regular cleaning and maintenance, and monitoring and adjustment, combined with corrosion inhibitor addition equipment, anti-corrosion treatment is carried out to form a protective film layer and anode layer to reduce the contact between metal and dissolved substances.

Benefits of technology

Effectively prevent scale accumulation inside the machine, improve water treatment efficiency, extend the service life of the machine, and ensure stable operation of the system.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120288989A_ABST
    Figure CN120288989A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of circulating water operation corrosion prevention, and discloses a circulating water operation corrosion prevention method which comprises a box body, an access cover is slidably connected to the top of the box body, a filter plate is slidably connected to the top end of the interior of the box body, a filter screen is arranged at the bottom of the filter plate, and the filter screen is slidably connected with the interior of the box body. The bottom of the filter screen is fixedly connected with an adsorption pad, the adsorption pad is slidably connected with the interior of the box body, and the bottom end of the interior of the box body is fixedly connected with a guide plate. Impurities and large foreign matters mixed in the box body are intercepted through the filter plate and the filter screen, and fine impurities and foreign matters in circulating water are intercepted by the adsorption pad; the filtered water flows into a guide plate and is finally collected in a collecting box, so that the situation that some impurities in the water are accumulated in the machine to cause scale deposition in the machine, and the water treatment efficiency of the machine is greatly influenced is prevented.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of anti-corrosion technology for circulating water operation, and specifically to a method for preventing corrosion in circulating water operation. Background Art

[0002] In the process of the development of China's industry, the demand for water by people is increasing day by day. Saving water and protecting water resources have become top priorities. The circulating water treatment technology has been gradually integrated in the innovation of the times. The circulating water system first needs to supplement water sources. These water sources can come from tap water, groundwater or other available water bodies, be filtered and then enter the circulating water treatment machine for treatment.

[0003] The circulating water treatment machines generally used on the market now, during the long-term use process, some impurities in the water will accumulate inside the machine, causing scale formation inside the machine, which greatly affects the water treatment efficiency of the machine, and is also very likely to cause corrosion of the machine, greatly reducing the service life of the machine.

[0004] In view of the above problems, for this reason, a method for preventing corrosion in circulating water operation is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for preventing corrosion in circulating water operation, which solves the problems in the background art that some impurities in the water will accumulate inside the machine, causing scale formation inside the machine, which greatly affects the water treatment efficiency of the machine, and is also very likely to cause corrosion of the machine, greatly reducing the service life of the machine.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A method for preventing corrosion in circulating water operation, a. Water quality analysis: First, conduct water quality analysis on the circulating water to understand the content and properties of dissolved substances in the water to determine the potential risk and degree of corrosion;

[0007] b. pH adjustment: According to the water quality analysis results, adjust the pH value of the circulating water to an appropriate range (usually 7-9) to prevent the acidic or alkaline environment from accelerating corrosion;

[0008] c. Corrosion inhibitor addition: According to the water quality analysis results, add an appropriate amount of corrosion inhibitor through a corrosion inhibitor addition device to form a protective film layer, reduce the contact between the metal and the dissolved substances in the water, and prevent corrosion. The type and dosage of the corrosion inhibitor should be determined according to the water quality analysis results and specific circumstances;

[0009] d. Anodic protection: According to the system materials and water quality analysis results, consider adding a suitable anodic protection agent to the circulating water to form a protective anodic layer and reduce the corrosion of the metal;

[0010] e. Redox control: According to the results of water quality analysis, control the redox potential in the circulating water, which can be achieved by adding oxidants or reductants, so as to reduce the corrosion of metals;

[0011] f. Regular cleaning and maintenance: Regularly clean and maintain the circulating water equipment and pipelines to remove accumulated sediments and dirt, reduce the risk of corrosion. At the same time, regularly check the status of the equipment and pipelines, and promptly repair or replace damaged components to keep the system running normally;

[0012] g. Monitoring and adjustment: Regularly conduct water quality tests and monitoring to evaluate the effectiveness of anti-corrosion measures. According to the monitoring results, promptly adjust and optimize anti-corrosion measures to ensure the stable operation of the circulating water system and anti-corrosion effect;

[0013] Among them, in step c, the corrosion inhibitor adding device includes a box body. The inner top of the box body is slidably connected with a filter plate. The inner bottom of the box body is fixedly connected with a collection box. The right side of the collection box penetrates and is fixedly connected with a water guide pipe, and the water guide pipe penetrates and is fixedly connected with the bottom right side of the box body. The other side of the water guide pipe penetrates and is fixedly connected with a housing. A water softener is fixedly connected inside the housing. The bottom right end of the water softener penetrates and is fixedly connected with a water delivery pipe. The other end of the water delivery pipe penetrates and is fixedly connected with a fusion box. The top of the housing penetrates and is fixedly connected with a corrosion inhibitor inlet, and the corrosion inhibitor inlet penetrates and is fixedly connected with the fusion box;

[0014] As a further description of the above technical solution: A filter screen is arranged at the bottom of the filter plate, and the filter screen is slidably connected inside the box body. An adsorption pad is fixedly connected to the bottom of the filter screen, and the adsorption pad is slidably connected inside the box body;

[0015] As a further description of the above technical solution: A second electronic valve is arranged on the outer diameter of the water delivery pipe, and the second electronic valve is matched with the fusion box;

[0016] As a further description of the above technical solution: A maintenance cover is slidably connected to the top of the box body, and a water inlet is penetrated and fixedly connected to the top of the maintenance cover;

[0017] As a further description of the above technical solution: A side plate is slidably connected to the left side of the box body, and a handle is fixedly connected to the left side of the side plate;

[0018] As a further description of the above technical solution: A first electronic valve is arranged on the outer diameter of the water guide pipe, and the first electronic valve is matched with the collection box;

[0019] As a further description of the above technical solution: A flow guide plate is fixedly connected to the inner bottom section of the box body, and a drainage groove is penetrated and fixedly connected to the middle position of the top of the flow guide plate;

[0020] As a further description of the above technical solution: A drain port penetrates and is fixedly connected to the right side of the housing, and the drain port penetrates and is fixedly connected to the fusion tank;

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. The circulating water enters the device through the water inlet, and impurities and larger foreign objects mixed therein are intercepted by the filter plate and the filter net. The adsorption pad intercepts fine impurities and foreign objects in the circulating water. The filtered water flows onto the diversion plate and is finally collected in the collection tank, preventing some impurities in the water from accumulating inside the machine and causing scale formation inside the machine, thereby greatly affecting the water treatment efficiency of the machine.

[0023] 2. The filtered water is transported to the water softener through the cooperation of the water guide pipe and the valve for water softening treatment to remove calcium, magnesium and other ions in the water, prevent the formation of hard water scale, and finally the circulating water is transported to the fusion tank through the water delivery pipe. A corrosion inhibitor is added into the fusion tank to prevent microbial corrosion and prevent the machine from being corroded, thereby reducing the service life of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 is a rear structural schematic diagram of the present invention;

[0026] Figure 3 is an internal structure diagram of the filtering device of the present invention;

[0027] Figure 4 is an internal structure diagram of the housing device of the present invention.

[0028] In the figure: 1. Box body; 2. Maintenance cover; 3. Water inlet; 4. Water guide pipe; 5. First electronic valve; 6. Housing; 7. Corrosion inhibitor inlet; 8. Drain port; 9. Side plate; 10. Handle; 11. Filter plate; 12. Filter net; 13. Adsorption pad; 14. Diversion plate; 15. Drainage groove; 16. Collection tank; 17. Water softener; 18. Water delivery pipe; 19. Second electronic valve; 20. Fusion tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] To further understand the content of the present invention, the present invention will be described in detail with reference to the accompanying drawings.

[0031] Combined with Figure 1 and Figure 2 , a. Water quality analysis: First, conduct a water quality analysis of the circulating water to understand the content and properties of the dissolved substances in the water, so as to determine the potential risk and degree of corrosion;

[0032] b. pH adjustment: According to the water quality analysis results, adjust the pH value of the circulating water to an appropriate range (usually 7 - 9) to prevent the acidic or alkaline environment from accelerating corrosion;

[0033] c. Corrosion inhibitor addition: According to the water quality analysis results, add an appropriate amount of corrosion inhibitor through a corrosion inhibitor addition device to form a protective film layer, reduce the contact between the metal and the dissolved substances in the water, and prevent corrosion. The type and dosage of the corrosion inhibitor should be determined according to the water quality analysis results and specific circumstances;

[0034] d. Anodic protection: According to the system materials and water quality analysis results, consider adding a suitable anodic protection agent to the circulating water to form a protective anodic layer and reduce metal corrosion;

[0035] e. Redox control: According to the water quality analysis results, control the redox potential in the circulating water, which can be achieved by adding oxidants or reductants, so as to reduce metal corrosion;

[0036] f. Regular cleaning and maintenance: Regularly clean and maintain the circulating water equipment and pipelines to remove the accumulated sediments and dirt, reduce the risk of corrosion. At the same time, regularly check the status of the equipment and pipelines, and promptly repair or replace the damaged components to keep the system running normally;

[0037] g. Monitoring and adjustment: Regularly conduct water quality tests and monitoring to evaluate the effectiveness of the anti-corrosion measures. According to the monitoring results, promptly adjust and optimize the anti-corrosion measures to ensure the stable operation of the circulating water system and the anti-corrosion effect;

[0038] Among them, in step c, the corrosion inhibitor adding device includes a box body 1. A filter plate 11 is slidably connected to the inner top of the box body 1. A collection box 16 is fixedly connected to the inner bottom of the box body 1. A water guide pipe 4 penetrates and is fixedly connected to the right side of the collection box 16, and the water guide pipe 4 penetrates and is fixedly connected to the bottom right side of the box body 1. The other side of the water guide pipe 4 penetrates and is fixedly connected to a housing 6. A filter screen 12 is arranged at the bottom of the filter plate 11, and the filter screen 12 is slidably connected to the inside of the box body 1. An adsorption pad 13 is fixedly connected to the bottom of the filter screen 12, and the adsorption pad 13 is slidably connected to the inside of the box body 1. A flow guide plate 14 is fixedly connected to the inner bottom end of the box body 1. A drainage groove 15 penetrates and is fixedly connected to the middle position of the top of the flow guide plate 14. The circulating water enters the device through the water inlet 3. The impurities and larger foreign objects in it are intercepted by the filter plate 11 and the filter screen 12. The adsorption pad 13 intercepts the fine impurities and foreign objects in the circulating water. The filtered water flows onto the flow guide plate 14 and is finally collected in the collection box 16 through the drainage groove 15. A second electronic valve 19 is arranged on the outer diameter of the water delivery pipe 18, and the second electronic valve 19 cooperates with the fusion box 20. A maintenance cover 2 is slidably connected to the top of the box body 1. The water inlet 3 penetrates and is fixedly connected to the top of the maintenance cover 2. A side plate 9 is slidably connected to the left side of the box body 1. A handle 10 is fixedly connected to the left side of the side plate 9. The maintenance cover 2 can facilitate its later maintenance and replacement. The side plate 9 can clean the filter screen 12.

[0039] Combined Figure 3 with Figure 4 , at the right bottom end of the water softener 17, a water delivery pipe 18 penetrates and is fixedly connected. The other end of the water delivery pipe 18 penetrates and is fixedly connected to a fusion box 20. A corrosion inhibitor inlet 7 penetrates and is fixedly connected to the top of the housing 6, and the corrosion inhibitor inlet 7 penetrates and is fixedly connected to the fusion box 20. A first electronic valve 5 is arranged on the outer diameter of the water guide pipe 4, and the first electronic valve 5 cooperates with the collection box 16. A drain port 8 penetrates and is fixedly connected to the right side of the housing 6, and the drain port 8 penetrates and is fixedly connected to the fusion box 20. The filtered circulating water is delivered to the water softener 17 inside the housing 6 through the water guide pipe 4 by opening the first electronic valve 5 for water softening treatment. The treated circulating water enters the fusion box 20 through the water delivery pipe 18. A corrosion inhibitor is added through the corrosion inhibitor inlet 7 to react with the circulating water. The reacted circulating water flows out through the drain port 8.

[0040] Working principle: The circulating water enters the device through the water inlet 3. The impurities and larger foreign objects mixed in it are intercepted by the filter plate 11 and the filter net 12. The adsorption pad 13 intercepts the fine impurities and foreign objects in the circulating water. The filtered water flows onto the diversion plate 14 and is finally collected in the collection box 16 through the drainage trough 15. The filtered circulating water is sent to the water softener 17 inside the housing 6 through the water guide pipe 4 by opening the first electronic valve 5 for water softening treatment. The treated circulating water enters the fusion tank 20 through the water delivery pipe 18. The corrosion inhibitor is added through the corrosion inhibitor inlet 7 to react with the circulating water. The reacted circulating water flows out through the drain port 8.

[0041] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preventing corrosion during the operation of circulating water, characterized in that: It includes the following methods a. Water quality analysis: First, conduct a water quality analysis of the circulating water to understand the content and properties of dissolved substances in the water, so as to determine the potential risk and degree of corrosion; b. pH adjustment: According to the water quality analysis results, adjust the pH value of the circulating water within an appropriate range (usually 7 - 9) to prevent the acidic or alkaline environment from accelerating corrosion; c. Corrosion inhibitor addition: According to the water quality analysis results, add an appropriate amount of corrosion inhibitor through a corrosion inhibitor addition device to form a protective film layer, reduce the contact between the metal and dissolved substances in the water, and prevent corrosion. The type and dosage of the corrosion inhibitor should be determined according to the water quality analysis results and specific conditions; d. Anodic protection: According to the system materials and water quality analysis results, consider adding a suitable anodic protection agent to the circulating water to form a protective anodic layer and reduce metal corrosion; e. Redox control: According to the water quality analysis results, control the redox potential in the circulating water, which can be achieved by adding oxidants or reductants, so as to reduce metal corrosion; f. Regular cleaning and maintenance: Regularly clean and maintain the circulating water equipment and pipelines, remove the accumulated sediment and dirt, reduce the risk of corrosion. At the same time, regularly check the status of the equipment and pipelines, and repair or replace damaged components in time to maintain the normal operation of the system; g. Monitoring and adjustment: Regularly conduct water quality tests and monitoring, evaluate the effectiveness of the anti-corrosion measures, and adjust and optimize the anti-corrosion measures in a timely manner according to the monitoring results to ensure the stable operation of the circulating water system and the anti-corrosion effect; Among them, the corrosion inhibitor addition device in step c includes a box body (1). The top end inside the box body (1) is slidably connected with a filter plate (11). The bottom inside the box body (1) is fixedly connected with a collection box (16). The right side of the collection box (16) penetrates and is fixedly connected with a water guide pipe (4), and the water guide pipe (4) penetrates and is fixedly connected with the bottom right side of the box body (1). The other side of the water guide pipe (4) penetrates and is fixedly connected with a housing (6). A water softener (17) is fixedly connected inside the housing (6). The bottom right end of the water softener (17) penetrates and is fixedly connected with a water delivery pipe (18). The other end of the water delivery pipe (18) penetrates and is fixedly connected with a fusion box (20). The top of the housing (6) penetrates and is fixedly connected with a corrosion inhibitor inlet (7), and the corrosion inhibitor inlet (7) penetrates and is fixedly connected with the fusion box (20).

2. A method for preventing corrosion during the operation of circulating water according to claim 1, characterized in that: A filter screen (12) is arranged at the bottom of the filter plate (11), and the filter screen (12) is slidably connected inside the box body (1). An adsorption pad (13) is fixedly connected to the bottom of the filter screen (12), and the adsorption pad (13) is slidably connected inside the box body (1).

3. A method for preventing corrosion during the operation of circulating water according to claim 1, characterized in that: A second electronic valve (19) is arranged on the outer diameter of the water delivery pipe (18), and the second electronic valve (19) cooperates with the fusion box (20).

4. A method for preventing corrosion during the operation of circulating water according to claim 1, characterized in that: A maintenance cover (2) is slidably connected to the top of the box body (1), and a water inlet (3) is fixedly connected to the top of the maintenance cover (2).

5. A method for preventing corrosion during the operation of circulating water according to claim 1, characterized in that: A side plate (9) is slidably connected to the left side of the box body (1), and a handle (10) is fixedly connected to the left side of the side plate (9).

6. A method for preventing corrosion during the operation of circulating water according to claim 1, characterized in that: The outer diameter of the water conduit (4) is provided with a first electronic valve (5), and the first electronic valve (5) is matched with the collection box (16).

7. A method for preventing corrosion during the operation of circulating water according to claim 1, characterized in that: A flow guide plate (14) is fixedly connected to the inner bottom section of the box body (1), and a drainage groove (15) penetrates and is fixedly connected to the middle position of the top of the flow guide plate (14).

8. A method for preventing corrosion during the operation of circulating water according to claim 1, characterized in that: A drain port (8) penetrates and is fixedly connected to the right side of the outer shell (6), and the drain port (8) penetrates and is fixedly connected to the fusion box (20).

Citation Information

Patent Citations

  • Method for preventing softening water from corrupting equipment

    CN101353205A

  • Integrated equipment and method for automatically treating circulating cooling water and recycling sewage water

    CN104250042A

  • Circulating cooling water near zero discharge system

    CN109970276A

  • Corrosion and scale inhibition control method of circulating cooling water system and corrosion and scale inhibitor

    CN111087100A

  • Application process of environment-friendly corrosion inhibitor in fire extinguishing system

    CN114635139A