Mother-son type pipeline cathode protection test pile
The design of the mother-daughter type pipeline cathodic protection test pile solves the problem of data loss in complex environments, realizes data continuity and reliability, and reduces safety hazards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PIPECHINA SOUTH CHINA CO
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-21
AI Technical Summary
Existing cathodic protection test piles are difficult to repair in complex terrain and special environments, resulting in missing measurement data and causing safety hazards and accident risks.
A mother-daughter type pipeline cathodic protection test pile is adopted. The mother test pile is installed directly above the flood-prone area, and the daughter test pile is installed nearby. The mother test pile is tested for a long time under normal conditions, while the daughter test pile is used to acquire data under special conditions to ensure data continuity.
This technology enables the testing pile to be maintained without frequent maintenance in complex environments, ensuring data continuity and reliability, reducing the risk of missing measurement data, and improving pipeline safety.
Smart Images

Figure CN224148180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of test pile technology, and in particular to a mother-daughter type pipeline cathodic protection test pile. Background Technology
[0002] A test pile is a testing device for measuring the cathodic protection status parameters of oil and gas pipelines. It is an indispensable device in the cathodic protection system of long-distance pipelines. Traditional cathodic protection test piles require manual on-site measurement using tools such as multimeters and portable references.
[0003] Cathodic protection test piles are mostly used in areas with easily accessible geological features and relatively favorable terrain. However, pipeline routes are not limited to flat plains; the geographical environment along the pipeline is complex and varied. Since cathodic protection test piles generally have a high failure rate, when they are needed in areas such as riverbeds and shallows where water levels occasionally rise, it is extremely inconvenient to access the test piles during construction if they need repair during the rainy season or flood season. Access is often impossible, requiring waiting for the water level to drop or using difficult methods such as diversion weirs, which is very costly. In such cases, the pipeline's cathodic protection status parameters cannot be tested due to the inability to repair in time, rendering the test piles ineffective. This results in a lack of safe operation measurement data for pipelines passing through areas with occasional water rises, potentially leading to hidden dangers, accidents, and losses. Utility Model Content
[0004] The purpose of this invention is to provide a mother-daughter type pipeline cathodic protection test pile to solve the problem of missing pipeline measurement data due to special environments.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] Cathodic protection test posts for mother-daughter type pipelines include:
[0007] The mother test pile includes a first housing, in which a first acquisition and transmission component and a first power supply are disposed. The first acquisition and transmission component is connected to the pipeline under test through a first test line passing through the first housing. The first power supply is connected to the first acquisition and transmission component so as to provide power to the first acquisition and transmission component.
[0008] The sub-test pile includes a second housing, within which a second acquisition and transmission component and a second power supply are disposed. The second acquisition and transmission component is connected to the pipeline under test via a second test line passing through the second housing. The second power supply is connected to the second acquisition and transmission component to provide power to the second acquisition and transmission component. The length of the second test line is not shorter than the length of the first test line.
[0009] In some embodiments, a first mounting plate and a second mounting plate are provided inside the first housing. The first mounting plate and the second mounting plate are spaced apart along the height direction of the first housing. Both the first mounting plate and the second mounting plate are provided with wiring holes. The first acquisition and transmission component is disposed on the first mounting plate, and the first power supply is disposed on the second mounting plate.
[0010] In some embodiments, the first housing is further provided with two female operation ports, the two female operation ports respectively corresponding to the first power supply and the first acquisition and transmission component, and the first housing is further provided with a female switch door that can close or open the female operation ports.
[0011] In some embodiments, a third mounting plate is provided inside the second housing, and the second acquisition and transmission component and the second power supply are both disposed on the third mounting plate.
[0012] In some embodiments, the second housing is provided with a sub-operation port, the sub-operation port corresponding to the second acquisition and transmission component and the second power supply, and the second housing is also provided with a sub-switching door that can close or open the sub-operation port.
[0013] In some embodiments, the sub-test pile further includes a control switch connected to the second acquisition and transmission component, the control switch being disposed on the third mounting plate, and the control switch controlling the start and stop of the second acquisition and transmission component.
[0014] In some embodiments, the mother test pile further includes a solar panel disposed on the first housing and connected to the first power source.
[0015] In some embodiments, the mother test stake further includes a bird deterrent device detachably mounted on the first housing.
[0016] In some embodiments, the bird repeller is an acoustic and light bird repeller connected to the first power source; and / or, the bird repeller is a wind-powered bird repeller.
[0017] In some embodiments, the mother test pile further includes a water reservoir disposed on the first housing. The water reservoir has an inner cavity and an outlet communicating with the inner cavity. The outlet is oriented downwards and a regulating valve is provided at the outlet, which is capable of regulating the water flow rate.
[0018] The beneficial effects of this utility model are:
[0019] The use of a mother-daughter type pipeline cathodic protection test pile eliminates the need to consider the geographical environment for placement. The mother test pile can be installed directly above the pipeline under test in locations such as riverbeds or shallows where water levels may occasionally rise; while the daughter test pile is installed nearby, unaffected by environmental factors (flooding, special weather, or seasonal changes). Under normal operating conditions, the mother test pile can be used for long-term testing to obtain pipeline information. If the mother test pile is damaged or cannot be tested for other reasons, and if it is difficult to reach for maintenance due to special circumstances such as the rainy season or flood season, the daughter test pile can be opened to conduct testing and obtain pipeline cathodic protection information, thus preventing the loss of measurement data due to the inability to repair the mother test pile. In addition, the daughter test pile can be opened for testing at any time, allowing simultaneous testing of both the mother and daughter test piles. The data obtained from the mother and daughter test piles can be compared to verify the reliability of the test data. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the cathodic protection test pile for the mother-daughter type pipeline of this utility model;
[0021] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0022] Figure 3 This is a schematic diagram of the mother switch door on the mother test pile being opened in this utility model;
[0023] Figure 4 This is an exploded view of the mother test stake and the fixed fork in this utility model.
[0024] In the picture:
[0025] 1. Mother test stake; 11. First housing; 12. First data acquisition and transmission component; 13. First power supply; 14. First test line; 15. First mounting plate; 16. Second mounting plate; 17. Mother operation port; 18. Mother switch door; 19. Solar panel; 110. Bird deterrent; 111. Water storage tank; 112. Regulating valve; 113. Cable hole;
[0026] 2. Sub-test pile; 21. Second housing; 22. Second acquisition and transmission component; 23. Second power supply; 24. Second test line; 25. Third mounting plate; 26. Sub-operation port; 27. Sub-switch door; 28. Control switch;
[0027] 3. The pipeline to be tested;
[0028] 4. Fixed fork. Detailed Implementation
[0029] The present invention 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 invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] In this invention, unless otherwise explicitly 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.
[0032] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0033] like Figures 1 to 4As shown, this application provides a mother-daughter type pipeline cathodic protection test pile, which includes a mother test pile 1 and a daughter test pile 2. The mother test pile 1 includes a first housing 11, in which a first acquisition and transmission component 12 and a first power supply 13 are disposed. The first acquisition and transmission component 12 is connected to the pipeline 3 under test through a first test line 14 passing through the first housing 11. The first power supply 13 is connected to the first acquisition and transmission component 12 to provide power to the first acquisition and transmission component 12. The daughter test pile 2 includes a second housing 21, in which a second acquisition and transmission component 22 and a second power supply 23 are disposed. The second acquisition and transmission component 22 is connected to the pipeline 3 under test through a second test line 24 passing through the second housing 21. The second power supply 23 is connected to the second acquisition and transmission component 22 to provide power to the second acquisition and transmission component 22. The length of the second test line 24 is not shorter than the length of the first test line 14.
[0034] The use of a mother-daughter type pipeline cathodic protection test pile eliminates the need to consider the geographical environment for placement. The mother test pile 1 can be installed directly above the pipeline 3 under test in locations such as riverbeds or shallows where water levels may occasionally rise. The daughter test pile 2 can be installed near the mother test pile 1, unaffected by environmental factors (flooding, special weather, or seasonal changes). Under normal operating conditions, the mother test pile 1 can be used for long-term testing to obtain pipeline information. If the mother test pile 1 is damaged or cannot be tested for other reasons, and maintenance is difficult due to special circumstances such as the rainy season or flood season, the daughter test pile 2 can be opened to conduct testing and obtain pipeline cathodic protection information, thus preventing the loss of measurement data due to the inability to maintain the mother test pile 1. Furthermore, the daughter test pile 2 can be opened for testing at any time, allowing simultaneous testing of both the mother test pile 1 and the daughter test pile 2. The data obtained from the mother test pile 1 and the daughter test pile 2 can then be compared to verify the reliability of the test data.
[0035] It should be noted that both the first acquisition and transmission component 12 and the second acquisition and transmission component 22 include data acquisition components and wireless transmission components. These are common components on smart test piles, and can be, but are not limited to, smart potential acquisition devices. Their structures will not be described in detail here. The lengths of the second test line 24 and the first test line 14 can be adjusted according to the installation positions of the mother test pile 1 and the daughter test pile 2, as long as the daughter test pile 2 can be installed in a position away from the mother test pile 1, without any specific restrictions.
[0036] like Figure 4As shown, in some embodiments, to facilitate the fixing of the mother test stake 1 and the daughter test stake 2, the lower part of the first housing 11 and the second housing 21 may be provided with a detachable fixing fork 4. Exemplarily, the fixing fork 4 is provided with a fork seat and a fork body. The fork body is mounted on the fork seat and can be a multi-legged fork or a tapered fork head, allowing it to be inserted into the ground to ensure stable installation. The first housing 11 and the second housing 21 may be fixed to the fork seat by, but is not limited to, screwing, snap-fitting, or plugging. When the fixing fork 4 is used, the lower part of the first housing 11 and the second housing 21 is also provided with a wire-passing hole 113 to avoid interference between the fixing fork 4 and the first test line 14 and the second test line 24.
[0037] like Figure 3 As shown, in some embodiments, a first mounting plate 15 and a second mounting plate 16 are provided inside the first housing 11. The first mounting plate 15 and the second mounting plate 16 are spaced apart along the height direction of the first housing 11. The first acquisition and transmission component 12 is disposed on the first mounting plate 15, and the first power supply 13 is disposed on the second mounting plate 16, thereby making the components inside the first housing 11 more neatly arranged and facilitating subsequent maintenance operations. In the current embodiment, both the first mounting plate 15 and the second mounting plate 16 are provided with wiring ports to facilitate wiring. Furthermore, for the convenience of operation and maintenance, the first housing 11 is also provided with two female operation ports 17, which correspond to the first acquisition and transmission component 12 and the first power supply 13, respectively. The first housing 11 is also provided with a female switch door 18 at the female operation port 17, which can close or open the female operation port. Thus, the corresponding female operation port 17 can be opened through the corresponding female switch door 18 to repair or inspect the first acquisition and transmission component 12 or the first power supply 13.
[0038] like Figure 1 and Figure 4 As shown, based on the long-term operation of the mother test pile 1, in some embodiments, the mother test pile 1 also includes a solar panel 19. The solar panel 19 is attached to the first housing 11 via a mounting bracket. The mounting bracket can be, but is not limited to, snap-fit or plug-in attachments to the first housing 11 for easy disassembly. The solar panel 19 is connected to the first power supply 13, thereby reducing the replacement frequency of the first power supply 13. When the external environment does not allow for the replacement of the first power supply 13, the mother test pile 1 can still operate.
[0039] like Figure 1 and Figure 4As shown, in some embodiments, the mother test stake 1 also includes a bird repeller 110, which is disposed on the top of the first housing 11 to drive away birds. Specifically, the bird repeller 110 can be an acoustic and optical bird repeller, such as an ultrasonic bird repeller, which is connected to a first power supply 13 to provide power. Alternatively, the bird repeller 110 can also be a wind-powered bird repeller. Both acoustic and optical bird repellers and wind-powered bird repellers are existing technologies and will not be described in detail here. In the current embodiment, the bird repeller 110 is detachably disposed on the top of the first housing 11. The bird repeller 110 has a bird-repelling seat, and the top opening of the first housing 11 has a threaded connection between the inner wall of the top opening and the bird-repelling seat. This allows the bird repeller 110 to be removed and replaced with a threaded closed cover after migratory birds have migrated, reducing the frequency of damage to the bird repeller 110.
[0040] like Figure 1 and Figure 4 As shown, in some embodiments, the mother test pile 1 further includes a water reservoir 111, which is disposed on the first housing 11. Exemplarily, the water reservoir 111 can be, but is not limited to, fixed to the first housing 11 by a snap-fit ring or welding. The water reservoir 111 has an inner cavity and is provided with an inlet and an outlet. The outlet is located at the bottom of the water reservoir 111 so that the outlet faces directly to the ground; the inlet is located at the top of the water reservoir 111, and a water storage cover that can be opened or closed is also provided at the inlet to prevent foreign objects from falling in. This allows for the collection of rainwater, or manual filling of water into the water reservoir 111. The outlet of the water reservoir 111 is provided with a regulating valve 112, which allows for the adjustment of the water flow rate. Exemplarily, the regulating valve 112 can be, but is not limited to, a ball valve. The water reservoir 111 can store some water, thereby keeping the surface moist and eliminating data anomalies caused by surface dryness when acquiring data.
[0041] Since sub-test stake 2 may not be used frequently, based on this, such as Figure 2As shown, in some embodiments, a third mounting plate 25 is provided inside the second housing 21, and the second acquisition and transmission component 22 and the second power supply 23 are both disposed on the third mounting plate 25, thereby reducing the size of the second housing 21 in the height direction. The second housing 21 is also provided with a sub-operation port 26, corresponding to the second acquisition and transmission component 22 and the second power supply 23. The second housing 21 is also provided with a sub-switch door 27 capable of closing or opening the sub-operation port 26, allowing direct inspection or maintenance of the second acquisition and transmission component 22 and the second power supply 23 through the opening and closing of the sub-switch door 27. Further, the sub-test pile 2 also includes a control switch 28 connected to the second acquisition and transmission component 22. The control switch 28 is disposed on the third mounting plate 25 and controls the start and stop of the second acquisition and transmission component 22, allowing it to be shut down when not in use. In the current embodiment, due to the infrequent operation of the sub-test pile 2, the second power supply 23 uses a removable battery, thus eliminating the need for a solar panel on the sub-test pile 2, reducing costs and the size of the sub-test pile 2, requiring only periodic battery replacement.
[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A piggyback pipeline cathodic protection test pile, characterized in that, include: The mother test pile (1) includes a first housing (11), in which a first acquisition and transmission component (12) and a first power supply (13) are provided. The first acquisition and transmission component (12) is connected to the pipe to be tested (3) through a first test line (14) passing through the first housing (11). The first power supply (13) is connected to the first acquisition and transmission component (12) so as to provide power to the first acquisition and transmission component (12). The sub-test pile (2) includes a second housing (21), in which a second acquisition and transmission component (22) and a second power supply (23) are provided. The second acquisition and transmission component (22) is connected to the pipeline to be tested (3) through a second test line (24) passing through the second housing (21). The second power supply (23) is connected to the second acquisition and transmission component (22) so as to provide power to the second acquisition and transmission component (22). The length of the second test line (24) is not shorter than the length of the first test line (14).
2. The parent / child pipeline cathodic protection test pile of claim 1, wherein, The first housing (11) is provided with a first mounting plate (15) and a second mounting plate (16). The first mounting plate (15) and the second mounting plate (16) are spaced apart along the height direction of the first housing (11). Both the first mounting plate (15) and the second mounting plate (16) are provided with wiring holes (113). The first acquisition and transmission component (12) is disposed on the first mounting plate (15), and the first power supply (13) is disposed on the second mounting plate (16).
3. The parent / child pipeline cathodic protection test pile of claim 2, wherein, The first housing (11) is also provided with two female operation ports (17), which correspond to the first power supply (13) and the first acquisition and transmission component (12) respectively. The first housing (11) is also provided with a female switch door (18) that can close or open the female operation ports (17).
4. The parent / child pipeline cathodic protection test pile of claim 1, wherein, The second housing (21) is provided with a third mounting plate (25), and the second acquisition and transmission component (22) and the second power supply (23) are both disposed on the third mounting plate (25).
5. The parent / child pipeline cathodic protection test pile of claim 4, wherein, The second housing (21) is provided with a sub-operation port (26), which corresponds to the second acquisition and transmission component (22) and the second power supply (23). The second housing (21) is also provided with a sub-switching door (27) that can close or open the sub-operation port (26).
6. The parent / child pipeline cathodic protection test pile of claim 4, wherein, The sub-test pile (2) also includes a control switch (28) connected to the second acquisition and transmission component (22). The control switch (28) is disposed on the third mounting plate (25) and controls the start and stop of the second acquisition and transmission component (22).
7. The parent / child pipeline cathodic protection test pile according to any one of claims 1-6, wherein, The mother test pile (1) also includes a solar panel (19), which is disposed on the first housing (11) and connected to the first power supply (13).
8. The parent / child pipeline cathodic protection test pile according to any one of claims 1-6, wherein, The mother test pile (1) also includes a bird deterrent (110), which is detachably mounted on the first housing (11).
9. The parent / child pipeline cathodic protection test pile of claim 8, wherein, The bird repeller (110) is an acoustic and light bird repeller, and the bird repeller (110) is connected to the first power source (13); and / or, the bird repeller (110) is a wind-powered bird repeller.
10. The parent / child pipeline cathodic protection test pile of any one of claims 1-6, wherein, The mother test pile (1) also includes a water storage device (111), which is disposed on the first housing (11). The water storage device (111) has an inner cavity and an outlet that communicates with the inner cavity. The outlet is positioned downwards and a regulating valve (112) is provided at the outlet. The regulating valve (112) can regulate the water flow rate.