Diversion deoxygenization device for hydrogen sulfide stress corrosion solution

Abstract

The utility model discloses a diversion deoxygenization device for a hydrogen sulfide stress corrosion solution, which relates to the technical field of corrosion resistance detection of metal materials and comprises a buffer cylinder, one end of the buffer cylinder is communicated with a gas inlet pipeline for introducing nitrogen, and the other end of the buffer cylinder is communicated with a gas outlet pipeline for introducing nitrogen. The extrusion part is arranged above the buffer barrel and used for dripping a solution into the buffer barrel, the extrusion part comprises a transparent barrel, the lower end of the transparent barrel is communicated with a liquid dripping head with one end penetrating into the buffer barrel, a lifting piston is arranged in the transparent barrel in a sliding mode, and the transparent barrel is divided into a hollow cavity and a solution cavity by the lifting piston; the solution cavity is filled with a hydrogen sulfide stress corrosion solution, and one side of the hollow cavity is fixedly communicated with the gas inlet pipeline through a connecting hose. According to the diversion deoxygenization device for the hydrogen sulfide stress corrosion solution, oxygen in the solution can be removed through nitrogen, the dripping amount of the solution can be conveniently adjusted according to the input flow of the nitrogen, and the accuracy of a detection result of the corrosion resistance of a metal material is improved.

Description

Technical Field

[0001] This utility model relates to the field of metal material corrosion resistance testing technology, specifically a flow guiding and deoxygenation device for hydrogen sulfide stress corrosion solution. Background Technology

[0002] Hydrogen sulfide stress corrosion testing is an important method for evaluating the corrosion resistance of metallic materials such as pipeline steel and high-pressure vessel steel. In industries such as petrochemicals and natural gas, these metallic materials are frequently exposed to media containing hydrogen sulfide, making their corrosion resistance crucial. Through hydrogen sulfide stress corrosion testing, the corrosion behavior of materials in a hydrogen sulfide environment can be simulated, thereby assessing their service life and safety.

[0003] Currently, the requirements for the test solution in hydrogen sulfide stress corrosion testing are very strict. The concentration and volume of the solution need to be precisely controlled to ensure the accuracy and reliability of the test results. In hydrogen sulfide stress corrosion testing, oxygen in the solution may interfere with the test results, leading to inaccurate data or misleading conclusions. Therefore, oxygen must be completely removed from the solution before conducting the test.

[0004] Therefore, in order to address the above problems, the applicant needs to design a flow-guiding and deoxygenation device for hydrogen sulfide stress corrosion solution. Utility Model Content

[0005] The purpose of this invention is to provide a deoxygenation device for hydrogen sulfide stress corrosion solution to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flow guiding and deoxygenation device for a hydrogen sulfide stress corrosion solution, comprising a buffer cylinder, one end of which is connected to an outlet pipe, and the end of the buffer cylinder away from the outlet pipe is connected to an inlet pipe, wherein nitrogen gas is introduced into the buffer cylinder through the inlet pipe.

[0007] It also includes: a squeezing component disposed above the buffer cylinder, the squeezing component being used to drip hydrogen sulfide stress corrosion solution into the buffer cylinder, the squeezing component comprising a transparent cylinder, and a graduated strip disposed on the outer side of the transparent cylinder, the lower end of the transparent cylinder being connected to a dripping head, and the end of the dripping head away from the transparent cylinder penetrating into the interior of the buffer cylinder, a lifting piston being slidably disposed inside the transparent cylinder, and the lifting piston dividing the transparent cylinder into a hollow cavity and a solution cavity, the solution cavity being filled with hydrogen sulfide stress corrosion solution, and a connecting hose being fixedly connected to one side of the hollow cavity, and the connecting hose being fixedly connected to the air inlet pipe.

[0008] Furthermore, a one-way valve is provided on the connecting hose, and the one-way valve is used to regulate the flow rate of nitrogen in the connecting hose.

[0009] Through the structural design, the one-way valve is used to adjust the flow of nitrogen in the connecting hose, the pressure in the hollow cavity is controlled, and the descending distance of the lifting piston is controlled.

[0010] Further, the outer side of the transparent cylinder is detachably connected with a connecting piece, and the outer side of the connecting piece is provided with an adjusting screw for adjusting the tightness of the connecting piece and the transparent cylinder.

[0011] Through the structural design, the adjusting screw is used to fasten the connecting piece and the transparent cylinder, the transparent cylinder is supported, and the load-bearing performance of the transparent cylinder is improved.

[0012] Further, the outer side of the connecting piece is fixedly connected with a support plate, and one side of the support plate is fixedly connected with a stand.

[0013] Through the structural design, the stand and the support plate are used to support the connecting piece, and the stability of the transparent cylinder is improved.

[0014] Further, one end of the stand away from the support plate is fixedly provided with a base, the top surface of the base is fixedly provided with a base, and the base is fixedly connected with the buffer cylinder.

[0015] Through the structural design, the base and the base are used to support the buffer cylinder, and the stability of the buffer cylinder is improved.

[0016] Further, one side of the solution cavity is fixedly connected with a liquid inlet pipeline, and the liquid inlet pipeline is used to introduce hydrogen sulfide stress corrosion solution into the transparent cylinder.

[0017] Through the structural design, the hydrogen sulfide stress corrosion solution is filled into the solution cavity, and the working efficiency is high.

[0018] Compared with the prior art, the hydrogen sulfide stress corrosion solution flow guide oxygen removal device can remove oxygen in the hydrogen sulfide stress corrosion solution by nitrogen, and can adjust the drop amount of the hydrogen sulfide stress corrosion solution according to the input flow of nitrogen, so that the oxygen in the hydrogen sulfide stress corrosion solution is completely removed, and the precision of the detection result of the corrosion resistance of the metal material is improved.

[0019] The hydrogen sulfide stress corrosion solution flow guide oxygen removal device, in use, hydrogen sulfide stress corrosion solution is introduced into the solution cavity through the liquid inlet pipeline, then nitrogen is introduced into the buffer cylinder through the gas inlet pipeline, when the buffer cylinder is filled with nitrogen, the one-way valve is opened, nitrogen will enter the connecting hose, the nitrogen in the connecting hose will enter the hollow cavity, the nitrogen in the hollow cavity will push the lifting piston to descend, the lifting piston will push the solution to drop into the buffer cylinder through the liquid drop head, the descending speed of the scale liquid level is observed, the one-way valve is adjusted, so that the nitrogen can completely remove the oxygen in the quantitative liquid drop, the oxygen in the hydrogen sulfide stress corrosion solution is completely removed, so that the accuracy of the detection result of the corrosion resistance of the metal material is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0021] Figure 2 It is a three-dimensional structure schematic view of the utility model extrusion component;

[0022] Figure 3 It is a three-dimensional sectional structure schematic view of the utility model extrusion component;

[0023] Figure 4 It is a three-dimensional structure schematic view of the utility model; Figure 3 It is a structure schematic view of the utility model enlarged at A.

[0024] In the figure: 1, buffer cylinder;2, extrusion component;10, gas outlet pipeline;11, gas inlet pipeline;12, base;13, base;14, support plate;15, stand;16, connecting hose;17, one-way valve;20, transparent cylinder;21, scale bar;22, lifting piston;23, hollow cavity;24, solution cavity;25, liquid inlet pipeline;26, connecting piece;200, liquid drop head;260, adjusting screw. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] As Figures 1-4The utility model discloses a hydrogen sulfide stress corrosion solution's flow guide deoxidation device, including the buffer cylinder 1, and the buffer cylinder 1 one end is connected with the gas outlet pipeline 10, and the buffer cylinder 1 is away from the gas inlet pipeline 11 of gas outlet pipeline 10 one end, and the gas inlet pipeline 11 is inhaled nitrogen into the buffer cylinder 1, still include the extrusion part 2 of setting in the buffer cylinder 1 top, and the extrusion part 2 is used for dropping hydrogen sulfide stress corrosion solution to the buffer cylinder 1, and the extrusion part 2 includes transparent cylinder 20, and the outside of transparent cylinder 20 is provided with scale bar 21, and the lower end of transparent cylinder 20 is connected with the drip head 200, and the drip head 200 is away from the inside of buffer cylinder 1 of transparent cylinder 20 one end penetration, and the inside of transparent cylinder 20 is slidably provided with the lifting piston 22, and the lifting piston 22 will transparent cylinder 20 divide into hollow chamber 23 and solution cavity 24, and the inside of solution cavity 24 is filled with hydrogen sulfide stress corrosion solution, and one side of hollow chamber 23 is fixedly connected with the connecting hose 16, and the connecting hose 16 is fixedly connected with the gas inlet pipeline 11.

[0027] The one-way valve 17 is arranged on the connecting hose 16, and the one-way valve 17 is used for adjusting the flow of nitrogen in the connecting hose 16, the one-way valve 17 is used for adjusting the flow of nitrogen in the connecting hose 16, the pressure in the hollow chamber 23 is controlled, and the descending distance of the lifting piston 22 is controlled, the connecting piece 26 is detachably arranged on the outside of the transparent cylinder 20, the adjusting screw 260 for adjusting the tightness of the connecting piece 26 and the transparent cylinder 20 is arranged on the outside of the connecting piece 26, the connecting piece 26 and the transparent cylinder 20 are fastened by the adjusting screw 260, the transparent cylinder 20 is supported, the bearing capacity of the transparent cylinder 20 is improved, the support plate 14 is fixedly connected to the outside of the connecting piece 26, the stand 15 is fixedly connected to one side of the support plate 14, the base 13 is fixedly arranged on the end of the stand 15 away from the support plate 14, the base 13 is fixedly arranged on the top surface of the base 13, the base 12 is fixedly connected to the buffer cylinder 1, the connecting piece 26 is supported by the stand 15 and the support plate 14, the stability of the transparent cylinder 20 is improved, the buffer cylinder 1 is supported by the base 13 and the base 12, and the stability of the buffer cylinder 1 is improved, the liquid inlet pipeline 25 is fixedly connected to one side of the solution cavity 24, the hydrogen sulfide stress corrosion solution is inhaled into the transparent cylinder 20 by the liquid inlet pipeline 25, the hydrogen sulfide stress corrosion solution is filled into the solution cavity 24, and the working efficiency is high.

[0028] Working principle: when the hydrogen sulfide stress corrosion solution is used in the flow guide oxygen removal device, the hydrogen sulfide stress corrosion solution is introduced into the solution cavity 24 through the liquid inlet pipeline 25, then the nitrogen is introduced into the buffer cylinder 1 through the gas inlet pipeline 11, when the buffer cylinder 1 is filled with nitrogen, the one-way valve 17 is opened, the nitrogen will enter the connecting hose 16, the nitrogen in the connecting hose 16 will enter the hollow cavity 23, the nitrogen in the hollow cavity 23 will push the lifting piston 22 to descend, the lifting piston 22 will push the solution to drop into the buffer cylinder 1 through the liquid head 200, the descending speed of the liquid level of the scale bar 21 is observed, the one-way valve 17 is adjusted, so that the oxygen in the quantitative dripping liquid can be completely removed by the nitrogen, the oxygen in the hydrogen sulfide stress corrosion solution is completely removed, so as to improve the accuracy of the detection result of the corrosion resistance of the metal material.

[0029] Through the above description, the related personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A hydrogen sulfide stress corrosion solution flow guide deoxidizing device, comprising a buffer cylinder (1), and one end of the buffer cylinder (1) is communicated with an air outlet pipeline (10), the end of the buffer cylinder (1) away from the air outlet pipeline (10) is communicated with an air inlet pipeline (11), and the air inlet pipeline (11) introduces nitrogen into the buffer cylinder (1), characterized in that Further comprising: A pressing component (2) arranged above the buffer cylinder (1), and the pressing component (2) is used for dripping hydrogen sulfide stress corrosion solution into the buffer cylinder (1), the pressing component (2) comprises a transparent cylinder (20), and the outer side of the transparent cylinder (20) is provided with a scale bar (21), the lower end of the transparent cylinder (20) is communicated with a dropping head (200), and the end of the dropping head (200) away from the transparent cylinder (20) penetrates into the inside of the buffer cylinder (1), the inside of the transparent cylinder (20) is slidably provided with a lifting piston (22), and the lifting piston (22) divides the transparent cylinder (20) into a hollow cavity (23) and a solution cavity (24), the inside of the solution cavity (24) is filled with hydrogen sulfide stress corrosion solution, and one side of the hollow cavity (23) is fixedly communicated with a connecting hose (16), and the connecting hose (16) is fixedly communicated with the air inlet pipeline (11).

2. The hydrogen sulfide stress corrosion cracking solution flow guiding and deaerating device according to claim 1, characterized in that: A one-way valve (17) is arranged on the connecting hose (16), and the one-way valve (17) is used for adjusting the flow of nitrogen in the connecting hose (16).

3. The hydrogen sulfide stress corrosion cracking solution flow guiding and deaerating device according to claim 1, characterized in that: A connecting piece (26) is detachably arranged on the outer side of the transparent cylinder (20), and the outer side of the connecting piece (26) is provided with an adjusting screw (260) used for adjusting the tightness of the connecting piece (26) and the transparent cylinder (20).

4. The hydrogen sulfide stress corrosion cracking solution flow guiding and deaerating device according to claim 3, characterized in that: A support plate (14) is fixedly connected to the outer side of the connecting piece (26), and one side of the support plate (14) is fixedly connected with a stand (15).

5. The hydrogen sulfide stress corrosion cracking solution flow guiding and deaerating device according to claim 4, characterized in that: A base (13) is fixedly arranged at the end of the stand (15) away from the support plate (14), a base (12) is fixedly arranged on the top surface of the base (13), and the base (12) is fixedly connected with the buffer cylinder (1).

6. The hydrogen sulfide stress corrosion cracking solution flow guiding deaerator of claim 1, wherein: One side of the solution cavity (24) is fixedly communicated with a liquid inlet pipeline (25), and the liquid inlet pipeline (25) is used for introducing hydrogen sulfide stress corrosion solution into the transparent cylinder (20).

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