Reactor for pipe network corrosion test

Abstract

The utility model relates to the technical field of pipe network corrosion tests, and one embodiment of the utility model provides a reactor for a pipe network corrosion test, which is used for testing a pipe network test piece and comprises a tank body arranged on a base, the tank body is provided with a reaction space, the bottom of the tank body is provided with a water inlet, and the top of the tank body is provided with a water outlet; the rotor is rotationally arranged in the reaction space, a plurality of runners are arranged in the rotor, each runner is provided with a first inlet and a first outlet, the first inlets are close to the water inlet, the first outlets are close to the water outlet, and in the projection of the rotor in the axis direction, the first inlets and the first outlets of the same runner are distributed at intervals in the rotating direction of the rotor. According to the technical scheme, the technical problem that the speed of the rotor for simulating the water flow speed is too high in the test process in the prior art is solved.

Description

Technical Field

[0001] The embodiments of this disclosure relate to the field of pipeline corrosion testing technology, and more specifically, to a reactor for pipeline corrosion testing. Background Technology

[0002] To effectively address the unstable scale buildup in low-corrosion-resistant metal pipe networks caused by water quality changes during water source allocation, establishing a scientific and reasonable evaluation method is crucial for accurately assessing the corrosion of pipe networks of different materials by simulating actual water quality and hydraulic conditions. Currently, common reactors used for metal pipe corrosion testing typically consist of a rotor mounted on a sealed container. During the test, water is injected into the sealed container, bringing the water into contact with the iron plate. The rotation of the rotor simulates flowing water, thus studying the corrosion of metal pipes under the influence of water flow.

[0003] However, this existing technology has significant drawbacks: First, the size of the reactor is limited by laboratory space, resulting in a generally small rotor radius. To achieve the required actual water flow velocity, the rotor needs to operate at extremely high speeds, which not only consumes a large amount of energy but also poses serious safety hazards, such as component wear and detachment, potentially causing damage to personnel and equipment. Second, the area of ​​the iron plates on the rotor is fixed and cannot be flexibly adjusted according to the ratio of different water volumes and pipe wall areas in the actual water supply network. This makes it difficult to accurately simulate actual working conditions, significantly reducing the accuracy and reliability of the test results and failing to provide precise and effective technical support for the safe and stable operation of actual pipe networks. Utility Model Content

[0004] To overcome the above-mentioned defects, embodiments of this disclosure provide a reactor for pipeline corrosion testing, which solves the technical problem of excessively high rotor speed in simulating water flow velocity during the test in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides a reactor for testing pipeline corrosion, used to test pipeline specimens, including:

[0006] Base;

[0007] A tank body is mounted on the base, the tank body has a reaction space, a water inlet at the bottom of the tank body, and a water outlet at the top;

[0008] A rotor is rotatably disposed within the reaction space. The test piece is disposed on the rotor. The rotor has several flow channels, each flow channel having a first inlet and a first outlet. The first inlet and the first outlet are located at opposite ends of the rotor's axial direction and at different radial directions of the rotor.

[0009] For example, in a pipeline corrosion test reactor provided in at least one embodiment of this disclosure, the tank also has a sampling port for sampling and testing the liquid in the reaction space.

[0010] For example, in a pipeline corrosion test reactor provided in at least one embodiment of this disclosure, there are several test pieces, all of which can be detachably mounted on the rotor.

[0011] For example, in a reactor for pipeline corrosion testing provided in at least one embodiment of this disclosure, the sidewall of the rotor has a plurality of mounting grooves for inserting the test piece.

[0012] For example, in a reactor for pipeline corrosion testing provided in at least one embodiment of this disclosure, the test piece includes:

[0013] A insert, wherein the insert is plugged into the mounting slot;

[0014] An iron block is disposed on the insert plate, and the iron block is detachably connected to the insert plate.

[0015] For example, in a reactor for pipeline corrosion testing provided in at least one embodiment of this disclosure, the projection of the mounting groove along the axial direction of the rotor is T-shaped, the mounting groove has a slot and a groove, and the rotor also has a support portion;

[0016] The support portion is located at the bottom of the mounting groove, and the support portion is used to support the insert;

[0017] The slot is closer to the axis of the rotor than the slot. The slot is used to hold the insert, and the slot is used to hold the iron block. The slot and the slot are connected. The area of ​​the slot is larger than that of the slot when projected along the axis of the rotor.

[0018] For example, in a reactor for pipeline corrosion testing provided in at least one embodiment of this disclosure, the rotor and the inserts are non-metallic structures.

[0019] For example, in a reactor for pipeline corrosion testing provided in at least one embodiment of this disclosure, the insert is screwed to the iron block.

[0020] For example, in a reactor for pipeline corrosion testing provided in at least one embodiment of this disclosure, the insert includes:

[0021] The main body is detachably connected to the iron block and is located within the slot.

[0022] A pull part is provided at one end of the main body away from the support part, and the pull part is located outside the slot.

[0023] For example, in a pipeline corrosion testing reactor provided in at least one embodiment of this disclosure, the reactor further includes:

[0024] A jacket is fitted over the outside of the tank body. The jacket has a heat exchange medium inlet and a heat exchange medium outlet. The jacket is used to adjust the temperature inside the tank body.

[0025] The beneficial effects of the embodiments disclosed herein are as follows:

[0026] In this disclosure, by setting a special circumferential distribution of flow channels within the rotor, the rotor speed required to simulate water flow velocity is reduced, thus decreasing energy consumption and mitigating the safety risks associated with high-speed rotation. This allows for a more realistic simulation of water flow conditions in actual pipe networks, improving the accuracy and reliability of test results and providing more effective technical support for the safe and stable operation of actual pipe networks. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of this disclosure;

[0029] Figure 2 This is a schematic diagram of the cross-sectional structure of this disclosure;

[0030] Figure 3 This is a schematic diagram of the structure of the rotor display hidden line disclosed in this invention;

[0031] Figure 4 For this disclosure Figure 2 Enlarged structural diagram at point A in the middle;

[0032] Figure 5 This is a schematic diagram of the rotor structure disclosed herein;

[0033] Figure 6 This is a schematic diagram of the test piece structure disclosed in this publication;

[0034] Figure 7 This is another structural diagram of the present disclosure;

[0035] In the diagram: 100, base; 200, tank body; 210, reaction space; 220, water inlet; 230, water outlet; 300, rotor; 310, flow channel; 311, first inlet; 312, first outlet; 240, sampling port; 400, sample piece; 320, mounting groove; 410, insert; 420, iron block; 321, support part; 322, slot; 323, card slot; 411, main body; 412, pull part; 500, jacket; 510, heat exchange medium inlet; 520, heat exchange medium outlet. Detailed Implementation

[0036] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0037] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0038] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0039] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0041] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] like Figures 1-7 The diagram illustrates a reactor for pipeline corrosion testing according to an embodiment of this disclosure, comprising a tank 200 mounted on a base 100. The tank 200 has an internal reaction space 210, an inlet 220 at the bottom, and an outlet 230 at the top. The tank 200 has a removable sealing cap, with the outlet 230 located on the cap, allowing for easy access to the rotor 300 by removing the cap.

[0043] The rotor 300 is rotatably mounted within the reaction space 210, and its interior has several flow channels 310. Each flow channel 310 has a first inlet 311 and a first outlet 312, and in the projection along the axial direction of the rotor 300, the first inlet 311 and first outlet 312 of the same flow channel 310 are spaced apart along the rotation direction of the rotor 300. The rotor 300 is driven to rotate by an external servo motor. The rotor 300 rotates within the reaction space 210, and the rotation of the rotor 300, combined with the water flow within the reaction space 210 flowing from the inlet 220 to the outlet 230 under the action of an external pump, simulates the impact of water flow on the inner wall of a real pipe. The rotor 300 is a solid cylinder, and the flow channels 310 inside the rotor 300 allow water to pass through axially, accelerating the flow speed of the water in the reaction space 210, thereby increasing the water flow velocity while maintaining a constant rotor speed. The special inclination of the internal flow channel 310 of the rotor 300 is in line with the rotation direction of the rotor 300, which enables the water flow to adapt to the centrifugal force brought by the rotor 300, and further increases the speed of water flow in the flow channel 310.

[0044] In the actual test, water enters from the inlet 220 at the bottom of the tank 200, and some water enters the flow channel 310 inside the rotor 300 through the first inlet 311, and then flows out from the first outlet 312. Due to the special inclined design of the flow channel 310, the rotor 300 can rotate at a relatively low speed under the action of water flow, thereby simulating a suitable water flow speed.

[0045] By setting a special circumferential distribution of flow channels 310 within the rotor 300, the rotor 300 speed required to simulate water flow velocity is reduced, thus decreasing energy consumption and mitigating the safety risks associated with high-speed rotation. This allows for a more realistic simulation of water flow conditions in actual pipe networks, improving the accuracy and reliability of test results and providing more effective technical support for the safe and stable operation of actual pipe networks.

[0046] Based on actual experimental results, taking a water flow velocity of 0.85 m / s as an example, with a tank diameter of 500 mm and a tank 200, due to variations in the radius of the rotor 300 in different devices, the rotor 300 would need to reach approximately 1000 rpm. However, by adding two flow channels 310 to the rotor 300, the rotor 300 only needs to rotate at 467 rpm. The speed is 291 rpm for a flow velocity of 0.6 m / s, 106 rpm for 0.3 m / s, and 36 rpm for 0.1 m / s.

[0047] In some examples, in addition to the inlet 220 at the bottom and the outlet 230 at the top, the tank 200 also has a sampling port 240 located at the top of the tank 200. The purpose of this sampling port 240 is to facilitate sampling and testing of the liquid in the reaction space 210.

[0048] During the experiment, operators can obtain liquid samples from the reaction space 210 at different time points through the sampling port 240. These samples can be used to detect indicators such as iron ion content, pH, and concentration of corrosive substances in the liquid, thereby helping researchers to gain a more comprehensive and accurate understanding of the process and situation of pipeline corrosion.

[0049] The inclusion of sampling port 240 makes monitoring during the experiment more convenient and flexible, enabling timely acquisition of key data. This helps researchers adjust and optimize experimental conditions based on the test results, improving the scientific rigor and accuracy of the experiment. It also enhances the functionality and practicality of the reactor, providing strong support for in-depth research on pipeline corrosion phenomena.

[0050] In some examples, there are also several test pieces 400, all of which are detachably mounted on the rotor 300.

[0051] In actual experiments, different quantities, materials, or shapes of test pieces 400 can be selected and installed according to different experimental requirements. The detachable design facilitates the replacement and adjustment of the test pieces 400. When it is necessary to adjust the ratio of test pieces 400 to water flow rate according to the actual situation, or when multiple sets of comparative tests are required on test pieces 400 of the same material, it is easy to remove and install the corresponding test pieces 400.

[0052] In some examples, the sidewall of rotor 300 has several mounting slots 320 for plug-in connection with test piece 400.

[0053] In actual operation, the test piece 400 can be directly inserted into the corresponding mounting slot 320, achieving quick and stable installation. The size and shape of the mounting slot 320 match the test piece 400, ensuring that the test piece 400 will not loosen or fall off during the rotation of the rotor 300. When it is necessary to replace the test piece 400, simply pull the old test piece 400 out of the mounting slot 320 and insert the new test piece 400; the operation is simple and quick.

[0054] The plug-in connection between the mounting slot 320 and the test piece 400 is simple in structure and easy to operate, improving the efficiency of test piece 400 installation and replacement. It ensures a stable installation of the test piece 400 on the rotor 300, effectively avoiding the inaccuracy of test results caused by uncertain contact area between the test piece 400 and the water in the reaction space 210 due to looseness. This connection method ensures good contact between the test piece 400 and the rotor 300, which is beneficial for more accurately simulating pipeline corrosion.

[0055] In some examples, the test piece 400 includes a insert 410 that is plugged into a mounting slot 320. A metal block 420 is disposed on the insert 410 and is detachably connected to the insert 410.

[0056] In practical applications, the insert 410 is inserted into the mounting slot 320 to initially fix the test piece 400 on the rotor 300. The iron block 420 is detachably mounted on the insert 410. Depending on the specific requirements of the test, iron blocks 420 of different specifications, shapes, or materials can be selected for installation. When it is necessary to change the test conditions, such as to study the effect of iron blocks 420 of different areas or materials on corrosion, the original iron block 420 can be easily removed from the insert 410 and replaced with a new iron block 420.

[0057] In some examples, the projection of the mounting groove 320 along the axis of the rotor 300 is T-shaped. The mounting groove 320 has a slot 322 and a retaining groove 323, and the rotor 300 has a support portion 321. The support portion 321 is located at the bottom of the mounting groove 320 and its function is to support the insert 410. The slot 322 is closer to the axis of the rotor 300 than the retaining groove 323. The slot 322 is used to hold the insert 410, which allows the iron block 420 to be better exposed to the water in the reaction space 210. The retaining groove 323 is used to hold the iron block 420, and the slot 322 communicates with the retaining groove 323, so that the operator can pre-assemble the insert 410 and the iron block 420 externally. When it is necessary to replace the iron block 420, the insert 410 and the iron block 420 can be removed and placed at the same time. The T-shaped mounting groove 320 can limit the insert 410 at the connection between the slot 322 and the card slot 323, preventing the insert 410 from detaching from the rotor 300 under the centrifugal force generated by the rotation of the rotor 300.

[0058] In some examples, the rotor 300 and the insert 410 are non-metallic structures.

[0059] The rotor 300 and the insert 410 can be made of non-metallic materials such as plexiglass or plastic. Non-metallic rotor 300 and insert 410 will not release iron ions in water, ensuring that the iron ions in the water are all released by the corrosion of iron block 420, which makes it easy for operators to detect the corrosion of iron block 420.

[0060] In some examples, the insert 410 is connected to the iron block 420 by screws.

[0061] During actual assembly, the iron block 420 is fastened to the insert 410 with screws to ensure a firm and reliable connection. This screw connection method is relatively simple to operate, easy to install and disassemble, and allows for flexible replacement of different iron blocks 420 according to test requirements.

[0062] The screw connection provides high connection strength, ensuring that the iron block 420 will not detach from the insert 410 during the test. It is easy to assemble and disassemble, which improves testing efficiency and allows for quick replacement of different iron blocks 420 for comparative tests.

[0063] In some examples, insert 410 includes a body 411 detachably connected to block 420, the body 411 being located within slot 322. A pull handle 412 is provided at the end of body 411 away from support 321, and the pull handle 412 is located outside slot 322.

[0064] In actual operation, after the main body 411 is connected to the iron block 420, it is placed in the slot 322. When it is necessary to disassemble or replace the insert 410, the insert 410 can be easily pulled out by the pull part 412 located outside the slot 322, which makes it convenient for the operator to take the insert 410 from above the rotor 300.

[0065] The pull handle 412 facilitates the insertion and removal of the insert 410, improving work efficiency. It avoids the inconvenience and difficulty that might arise from directly operating the main body 411 within the slot 322.

[0066] In some examples, a jacket 500 is also included, which is fitted over the outside of the tank body 200. The jacket 500 has a heat exchange medium inlet 510 and a heat exchange medium outlet 520.

[0067] In practical applications, a heat exchange medium, such as cold or hot water, is introduced into the jacket 500 through the heat exchange medium inlet 510. The heat exchange medium flows within the jacket 500 and exchanges heat with the substances inside the tank 200, thereby adjusting the temperature inside the tank 200. The heat-exchanged medium is then discharged through the heat exchange medium outlet 520.

[0068] The jacket 500 effectively controls the temperature within the tank 200, simulating pipeline corrosion under different temperature conditions. This enhances the diversity and comprehensiveness of the experiment, making the results more valuable. The convenient temperature adjustment meets the needs of various testing conditions, increasing the versatility of the testing apparatus.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications or substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A reactor for testing pipeline corrosion, used to test and detect the corrosion of pipelines caused by changes in water quality and flow rate, characterized in that, include: Base (100); A tank (200) is mounted on the base (100). The tank (200) has a reaction space (210), an inlet (220) at the bottom, and an outlet (230) at the top. A rotor (300) is rotatably disposed within the reaction space (210). A sample (400) is disposed on the rotor (300). The rotor (300) has several flow channels (310). Each flow channel (310) has a first inlet (311) and a first outlet (312). The first inlet (311) and the first outlet (312) are located at opposite ends of the rotor (300) along its axial direction. The first inlet (311) and the first outlet (312) are located at different radial directions of the rotor (300).

2. The reactor for pipeline corrosion testing according to claim 1, characterized in that, The tank (200) also has a sampling port (240) for sampling the liquid in the reaction space (210).

3. The reactor for pipeline corrosion testing according to claim 1, characterized in that, There are several test pieces (400), all of which can be detachably mounted on the rotor (300).

4. The reactor for pipeline corrosion testing according to claim 3, characterized in that, The sidewall of the rotor (300) has a plurality of mounting slots (320) for inserting the test piece (400).

5. The reactor for pipeline corrosion testing according to claim 4, characterized in that, The test piece (400) includes: Insert (410), the insert (410) is inserted into the mounting slot (320); An iron block (420) is disposed on the insert (410), and the iron block (420) is detachably connected to the insert (410).

6. A reactor for pipeline corrosion testing according to claim 5, characterized in that, The projection of the mounting groove (320) along the axial direction of the rotor (300) is T-shaped. The mounting groove (320) has a slot (322) and a card slot (323). The rotor (300) has a support portion (321). The support portion (321) is located at the bottom of the mounting groove (320), and the support portion (321) is used to support the insert (410). The slot (322) is closer to the axis of the rotor (300) than the slot (323). The slot (322) is used to hold the insert (410), and the slot (323) is used to hold the iron block (420). The slot (322) and the slot (323) are connected. The projections of the slot (322) and the slot (323) along the axis of the rotor (300) are shown. The area of ​​the slot (322) is larger than that of the slot (323).

7. The reactor for pipeline corrosion testing according to claim 5, characterized in that, The rotor (300) and the insert (410) are non-metallic structures.

8. A reactor for pipeline corrosion testing according to claim 5, characterized in that, The insert (410) is screwed to the iron block (420).

9. A reactor for pipeline corrosion testing according to claim 6, characterized in that, The insert (410) includes: The main body (411) is detachably connected to the iron block (420), and the main body (411) is located in the slot (322); A pull part (412) is provided at one end of the main body (411) away from the support part (321), and the pull part (412) is located outside the slot (322).

10. A reactor for pipeline corrosion testing according to claim 1, characterized in that, Also includes: A jacket (500) is fitted over the outside of the tank body (200). The jacket (500) has a heat exchange medium inlet (510) and a heat exchange medium outlet (520). The jacket (500) is used to adjust the temperature inside the tank body (200).

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