Integrated pre-filming passivation device suitable for industrial pipeline

Abstract

The utility model discloses an integrated pre-filming passivation device suitable for industrial pipelines, and particularly relates to the technical field of industrial pipeline maintenance, which comprises a liquid storage tank, scale marks are arranged on the outer wall of the liquid storage tank, the top of the liquid storage tank is connected with a turning cover through a hinge, a through pipe is arranged at the bottom of the liquid storage tank, and the turning cover is connected with the through pipe. Wherein a control mechanism is arranged on one side of the through pipe and comprises a fixing frame arranged on one side of the liquid storage tank, a plurality of springs are arranged on the fixing frame, stabilizing plates are arranged on the tops of the springs, a corrosion-resistant variable-frequency water pump is arranged on the tops of the stabilizing plates, and a water outlet pipe is arranged on one side of the corrosion-resistant variable-frequency water pump. The device is designed to be integrated, the service life of the pipeline can be prolonged, the maintenance and replacement cost caused by corrosion and abrasion is reduced, in addition, the risk of pipeline leakage is reduced, and pipeline connection is more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial pipeline maintenance, and more specifically, to an integrated pre-film passivation device suitable for industrial pipelines. Background Art

[0002] Industrial piping systems often have problems such as pipeline corrosion, scaling, and biofouling. The above problems have a negative impact on pipeline flow, water quality, heat transfer coefficient, and water pump efficiency. It is difficult to ensure the long-term, full-load, safe and stable operation of process equipment. The passivation pre-filming agent adopts an advanced polymer film-forming formula, which can quickly form a dense protective layer on the metal surface, which can effectively reduce the oxidation corrosion and electrochemical corrosion of the metal surface.

[0003] However, the existing passivation pre-filming agent is directly added to the circulating water at the bottom of the cooling tower, resulting in the concentration of the passivation pre-filming agent in a certain section of the circulating water. It takes a lot of time to allow the passivation pre-filming agent to diffuse evenly throughout the entire pipeline, thus resulting in a slow film formation time for the passivation film inside the pipeline.

[0004] After searching, a Chinese patent with publication number CN219849007U discloses a circulating water system pipeline passivation pre-filming agent adding mechanism, which stirs the passivation pre-filming agent powder in a storage barrel by the circulating water flowing in the connecting pipe, so that the passivation pre-filming agent can be completely mixed with the circulating water, and the amount of the passivation pre-filming agent entering the circulating water system is controlled by a flow control valve, so that the passivation pre-filming agent can be spread throughout the circulating water system pipeline more quickly, reducing the passivation film forming time inside the pipeline, and can add different substances to the water pipe of the water circulation system by replacing different additive reagents, thereby improving practicality.

[0005] However, in actual use, the pre-film passivation device consists of a liquid storage tank and a water pump, and is often assembled on site, which can easily lead to a loose connection between the liquid storage tank and the water pump. The solvents in the alkaline washing and passivation steps are acidic and alkaline, which can corrode the pipeline. If there is seepage, it will pose a threat to the surrounding environment and operators. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides an integrated pre-film passivation device suitable for industrial pipelines to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An integrated pre-film passivation device suitable for industrial pipelines comprises a liquid storage tank, the outer wall of the liquid storage tank is provided with scale lines, the top of the liquid storage tank is connected with a flip cover through a hinge, the bottom of the liquid storage tank is provided with a through pipe, and one side of the through pipe is provided with a control mechanism;

[0009] The control mechanism includes a fixed frame arranged on one side of the liquid storage tank, a plurality of springs are arranged on the fixed frame, a stabilizing plate is arranged on the top of the plurality of springs, a corrosion-resistant variable frequency water pump is arranged on the top of the stabilizing plate, a water outlet pipe is arranged on one side of the corrosion-resistant variable frequency water pump, one end of the water outlet pipe passes through a through pipe and extends into the interior of the through pipe, and an oil-free centrifugal air compressor is arranged on one side of the corrosion-resistant variable frequency water pump.

[0010] By adopting the above technical solution: in order to design the device into an integrated and compact structure, the service life of the pipeline is increased, the maintenance and replacement costs caused by corrosion and wear are reduced, and the risk of pipeline leakage is reduced, the safety is greatly improved, and the pipeline connection is made more reliable.

[0011] As a further description of the above technical solution: connecting strips are provided on both sides of the oil-free centrifugal air compressor, bolts are provided on the top of the connecting strips, one end of the bolts passes through the connecting strips and extends into the interior of the fixed frame, a three-way pipe is provided between the corrosion-resistant variable frequency water pump and the oil-free centrifugal air compressor, a check valve is provided inside the three-way pipe, diaphragm valves are provided on both sides of the three-way pipe, and the inner surfaces of the corrosion-resistant variable frequency water pump and the oil-free centrifugal air compressor are covered with anti-corrosion coatings.

[0012] By adopting the above technical solution: in order to adapt to the pH value of the passivating agent, it will have better adaptability to different projects and can have a more stable performance during the pre-film passivation process.

[0013] As a further description of the above technical solution: a drain pipe is arranged at the bottom of the liquid storage tank, a solenoid valve is arranged on one side of the drain pipe, a waste liquid tank is arranged at one end of the drain pipe, a fixed pipe is arranged at one end of the corrosion-resistant variable frequency water pump, a one-way valve is arranged on one side of the fixed pipe, and an industrial pipeline body is arranged at one end of the fixed pipe.

[0014] By adopting the above technical solution: in order to reduce the preparation time and material loss of the pre-film passivation device, and to make it reusable, the practicality is greatly improved.

[0015] As a further description of the above technical solution: a fixing ring is provided on the liquid storage tank, a steel bracket is provided on one side of the fixing ring, a bottom plate is provided at the bottom of the steel bracket, universal wheels are provided at the four corners of the bottom of the bottom plate, and a support handle is provided on one side of the steel bracket.

[0016] By adopting the above technical solution: the device can be easily moved and the overall operation is simple and convenient.

[0017] Technical effects and advantages of the utility model:

[0018] 1. By setting a fixing mechanism, compared with the prior art, the diaphragm valve on one side of the corrosion-resistant variable frequency water pump is opened, and then the corrosion-resistant variable frequency water pump is started, and the alkali cleaning agent enters the external cooling water system for circulation, thereby removing the grease attached to the pipeline. After the circulation time is reached, the corrosion-resistant variable frequency water pump is stopped, and the diaphragm valve on one side of the corrosion-resistant variable frequency water pump is closed, and the diaphragm valve on one side of the oil-free centrifugal air compressor is opened, and then the external cooling water system drain valve is opened to discharge the alkali cleaning agent in the system, and the diaphragm valve on one side of the oil-free centrifugal air compressor is closed. The device is set as an integrated type to reduce the risk of pipeline leakage, which is conducive to ensuring production safety and environmental protection, and also makes the installation and maintenance of the device simple and convenient, while also improving work efficiency;

[0019] 2. The scale lines are set on the outer wall of the liquid storage tank to control the dosage and dilution ratio of the agent. The inner surfaces of the corrosion-resistant variable frequency water pump and the oil-free centrifugal air compressor are covered with anti-corrosion coatings, which can adapt to the pH value of the passivating agent. For different projects, the variable frequency water pump will have better adaptability, and can have a more stable performance during the pre-film passivation process. It is also convenient to disassemble the oil-free centrifugal air compressor. It can be used in the air pressure test of the pipeline system, and can also be fixed to the fixed frame by bolts. It can be removed and used separately when the device is idle, which greatly improves the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the fixing mechanism structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing mechanism of the utility model.

[0023] Figure 4 It is a schematic diagram of the fixed frame structure of the utility model.

[0024] Figure 5 This is a schematic diagram of the steel support structure of the utility model.

[0025] The accompanying drawings are marked as follows: 1. liquid storage tank; 2. flip cover; 3. through pipe; 4. fixed frame; 5. spring; 6. stabilizing plate; 7. corrosion-resistant variable frequency water pump; 8. water outlet pipe; 9. oil-free centrifugal air compressor; 10. connecting strip; 11. bolt; 12. three-way pipe; 13. check valve; 14. diaphragm valve; 15. drain pipe; 16. waste liquid tank; 17. fixed pipe; 18. one-way valve; 19. industrial pipeline body; 20. fixing ring; 21. steel bracket; 22. bottom plate; 23. universal wheel; 24. support handle. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The embodiments of this application disclose Figure 1-5 An integrated pre-film passivation device suitable for industrial pipelines is shown, comprising a liquid storage tank 1, the outer wall of the liquid storage tank 1 is provided with scale lines, the top of the liquid storage tank 1 is connected to a flip cover 2 through a hinge, the bottom of the liquid storage tank 1 is provided with a through pipe 3, and one side of the through pipe 3 is provided with a control mechanism;

[0028] The control mechanism includes a fixed frame 4 arranged on one side of the liquid storage tank 1, a plurality of springs 5 ​​are arranged on the fixed frame 4, a stabilizing plate 6 is arranged on the top of the plurality of springs 5, a corrosion-resistant variable frequency water pump 7 is arranged on the top of the stabilizing plate 6, a water outlet pipe 8 is arranged on one side of the corrosion-resistant variable frequency water pump 7, one end of the water outlet pipe 8 passes through the through pipe 3 and extends to the inside of the through pipe 3, an oil-free centrifugal air compressor 9 is arranged on one side of the corrosion-resistant variable frequency water pump 7, the flap 2 is opened upwards, and then the alkaline cleaning agent is poured into the liquid storage tank 1, and then the flap 2 is closed, and then the diaphragm valve 14 on the side of the corrosion-resistant variable frequency water pump 7 is opened, and then the corrosion-resistant variable frequency water pump 7 is started, and the alkaline cleaning agent enters the external cooling water system for circulation, thereby removing the grease attached to the pipeline, and after the circulation time is reached, the corrosion-resistant variable frequency water pump 7 is stopped, and the diaphragm valve 14 on the side of the corrosion-resistant variable frequency water pump 7 is closed, and the diaphragm valve 14 on the side of the oil-free centrifugal air compressor 9 is opened.

[0029] Reference Figure 2-3As shown, connecting strips 10 are provided on both sides of the oil-free centrifugal air compressor 9, and bolts 11 are provided on the top of the connecting strips 10. One end of the bolt 11 penetrates the connecting strips 10 and extends to the inside of the fixed frame 4. A three-way pipe 12 is provided between the corrosion-resistant variable frequency water pump 7 and the oil-free centrifugal air compressor 9. A check valve 13 is provided inside the three-way pipe 12. Diaphragm valves 14 are provided on both sides of the three-way pipe 12. The inner surfaces of the corrosion-resistant variable frequency water pump 7 and the oil-free centrifugal air compressor 9 are covered with an anti-corrosion coating. The diaphragm valve 14 on one side of the oil-free centrifugal air compressor 9 is opened, and then the drain valve of the external cooling water system is opened to discharge the alkaline cleaning agent in the system. The diaphragm valve 14 on one side of the oil-free centrifugal air compressor 9 is closed, and the external cooling water system is cleaned with cleaning until the pH value of the drainage meets the requirements. Request, open the solenoid valve on one side of the drain pipe 15, discharge the excess alkaline washing agent in the storage tank from the drain pipe 15 into the waste liquid tank 16 and clean the inner wall, the inner surface of the corrosion-resistant variable frequency water pump 7 and the oil-free centrifugal air compressor 9 is covered with an anti-corrosion coating, which can adapt to the pH value of the passivating agent. For different projects, the variable frequency water pump will have better adaptability and can have a more stable performance during the pre-film passivation process. When the oil-free centrifugal air compressor 9 needs to be disassembled, rotate the bolt 11 clockwise upward, thereby driving the bolt 11 to separate from the fixing frame 4 and the connecting strip 10, thereby removing the oil-free centrifugal air compressor 9, which can be used in the air pressure test process of the pipeline system, and can also be fixed to the fixing frame 4 by bolts. When the device is idle, it can be removed and used separately, which greatly improves the use effect.

[0030] Reference Figure 3-4 As shown, a drain pipe 15 is provided at the bottom of the liquid storage tank 1, a solenoid valve is provided on one side of the drain pipe 15, a waste liquid tank 16 is provided at one end of the drain pipe 15, a fixed pipe 17 is provided at one end of the corrosion-resistant variable frequency water pump 7, a one-way valve 18 is provided on one side of the fixed pipe 17, and an industrial pipeline body 19 is provided at one end of the fixed pipe 17. The drain valve of the external cooling water system is opened to discharge the pickling and passivation agent in the system, the diaphragm valve 14 on one side of the oil-free centrifugal air compressor 9 is closed and opened, and the external cooling water system is cleaned with clean water until the pH value of the drainage meets the requirements, the solenoid valve on one side of the drain pipe 15 is opened, and the excess alkaline washing agent in the liquid storage tank is discharged from the drain pipe 15 into the waste liquid tank 16 and the inner wall is cleaned, so that a variety of agents can be added to achieve different use effects, reduce the preparation time and material loss of the pre-film passivation device, and it can be reused.

[0031] Reference Figure 5As shown, a fixing ring 20 is provided on the liquid storage tank 1, a steel bracket 21 is provided on one side of the fixing ring 20, a bottom plate 22 is provided at the bottom of the steel bracket 21, four corners of the bottom of the bottom plate 22 are provided with universal wheels 23, and a support handle 24 is provided on one side of the steel bracket 21. When a staff member holds the support handle 24 to move it, the universal wheel 23 at the bottom rotates, and the universal wheel 23 drives the steel bracket 21 to move, and at the same time, the steel bracket 21 drives the liquid storage tank 1 to move to a suitable position.

[0032] Working principle of the utility model: When the utility model is used, the staff holds the support handle 24 to move it, so that the universal wheel 23 at the bottom rotates, and the universal wheel 23 drives the steel bracket 21 to move, and at the same time, the steel bracket 21 drives the liquid storage tank 1 to move to a suitable position. Before the operation of the device, first confirm the opening and closing status of the valve, then connect the main pipe of the device to the external cooling water system, try to start the corrosion-resistant variable frequency water pump 7 and the oil-free centrifugal air compressor 9 to confirm the working status. After the device inspection is completed, open the flip cover 2 upwards, then pour the alkaline cleaning agent into the liquid storage tank 1, then close the flip cover 2, and then open the diaphragm valve 14 on one side of the corrosion-resistant variable frequency water pump 7, and then Then start the corrosion-resistant variable frequency water pump 7, and the alkaline cleaning agent enters the external cooling water system for circulation, so as to remove the grease attached to the pipeline. After the circulation time is reached, stop the corrosion-resistant variable frequency water pump 7, and close the diaphragm valve 14 on one side of the corrosion-resistant variable frequency water pump 7, open the diaphragm valve 14 on one side of the oil-free centrifugal air compressor 9, and then open the external cooling water system drain valve to discharge the alkaline cleaning agent in the system, close the diaphragm valve 14 on one side of the oil-free centrifugal air compressor 9, use cleaning to clean the external cooling water system until the drainage pH value meets the requirements, open the solenoid valve on one side of the drain pipe 15, and discharge the excess alkaline cleaning agent in the storage tank from the drain pipe 15 to the waste liquid tank 16 and clean the inner wall;

[0033] Then pour the prepared pickling and passivation agent into the liquid storage tank 1, open the diaphragm valve 14 on the side of the corrosion-resistant variable frequency water pump 7, and then start the corrosion-resistant variable frequency water pump 7. The pickling and passivation enter the external cooling water system for circulation to remove rust impurities inside the pipeline. After the circulation time is reached, stop the corrosion-resistant variable frequency water pump 7, close the diaphragm valve 14 on the side of the corrosion-resistant variable frequency water pump 7, open the diaphragm valve 14 on the side of the oil-free centrifugal air compressor 9, open the external cooling water system drain valve, discharge the pickling and passivation agent in the system, close and open the diaphragm valve 14 on the side of the oil-free centrifugal air compressor 9, use clean water to clean the external cooling water system until the drainage PH value meets the requirements, open the solenoid valve on the side of the drain pipe 15, and discharge the excess alkali washing agent in the liquid storage tank from the drain pipe 15 to the waste liquid tank 16 and clean the inner wall, so that a variety of agents can be added to achieve different use effects, reduce the preparation time and material loss of the pre-film passivation device, and it can be reused;

[0034] Graduation lines are added to the outer wall of the liquid storage tank to control the dosage and dilution ratio of the agent. The inner surfaces of the corrosion-resistant variable frequency water pump 7 and the oil-free centrifugal air compressor 9 are covered with an anti-corrosion coating, which can adapt to the pH value of the passivating agent. For different projects, the variable frequency water pump will have better adaptability and can have a more stable performance during the pre-film passivation process. When the oil-free centrifugal air compressor 9 needs to be disassembled, the bolt 11 is rotated clockwise upward to drive the bolt 11 to separate from the fixing frame 4 and the connecting strip 10, thereby removing the oil-free centrifugal air compressor 9. It can be used in the air pressure test process of the pipeline system, and can also be fixed to the fixing frame 4 by bolts. When the device is idle, it can be removed and used separately, which greatly improves the use effect.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An integrated pre-film passivation device suitable for industrial pipelines, comprising a liquid storage tank (1), characterized in that: The outer wall of the liquid storage tank (1) is provided with scale lines, the top of the liquid storage tank (1) is connected to a flip cover (2) via a hinge, the bottom of the liquid storage tank (1) is provided with a through pipe (3), and a control mechanism is provided on one side of the through pipe (3); The control mechanism comprises a fixed frame (4) arranged on one side of the liquid storage tank (1), a plurality of springs (5) being arranged on the fixed frame (4), a stabilizing plate (6) being arranged on the top of each of the plurality of springs (5), a corrosion-resistant variable frequency water pump (7) being arranged on the top of the stabilizing plate (6), a water outlet pipe (8) being arranged on one side of the corrosion-resistant variable frequency water pump (7), one end of the water outlet pipe (8) passing through the through pipe (3) and extending into the interior of the through pipe (3), and an oil-free centrifugal air compressor (9) being arranged on one side of the corrosion-resistant variable frequency water pump (7).

2. The integrated pre-film passivation device for industrial pipelines according to claim 1 is characterized in that: Connecting strips (10) are provided on both sides of the oil-free centrifugal air compressor (9), and bolts (11) are provided on the top of the connecting strip (10). One end of the bolt (11) passes through the connecting strip (10) and extends into the interior of the fixing frame (4).

3. The integrated pre-film passivation device for industrial pipelines according to claim 1 is characterized in that: A three-way pipe (12) is arranged between the corrosion-resistant variable frequency water pump (7) and the oil-free centrifugal air compressor (9), a check valve (13) is arranged inside the three-way pipe (12), and diaphragm valves (14) are arranged on both sides of the three-way pipe (12), and the inner surfaces of the corrosion-resistant variable frequency water pump (7) and the oil-free centrifugal air compressor (9) are covered with an anti-corrosion coating.

4. The integrated pre-film passivation device for industrial pipelines according to claim 1 is characterized in that: A drain pipe (15) is provided at the bottom of the liquid storage tank (1), a solenoid valve is provided on one side of the drain pipe (15), and a waste liquid tank (16) is provided at one end of the drain pipe (15).

5. The integrated pre-film passivation device for industrial pipelines according to claim 1 is characterized in that: A fixed pipe (17) is provided at one end of the corrosion-resistant variable frequency water pump (7), a one-way valve (18) is provided on one side of the fixed pipe (17), and an industrial pipeline body (19) is provided at one end of the fixed pipe (17).

6. The integrated pre-film passivation device for industrial pipelines according to claim 1 is characterized in that: The liquid storage tank (1) is sleeved with a fixing ring (20), a steel bracket (21) is arranged on one side of the fixing ring (20), a bottom plate (22) is arranged at the bottom of the steel bracket (21), and universal wheels (23) are arranged at the four bottom corners of the bottom plate (22).

7. The integrated pre-film passivation device for industrial pipelines according to claim 6 is characterized in that: A support handle (24) is provided on one side of the profiled steel support (21).

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