Carbon dioxide pipeline leakage testing device
By designing a leak testing device suitable for carbon dioxide pipelines buried in soil, and using a test soil box and a rotatable test tube to simulate leaks, the problem of inaccurate detection of leaks in buried pipelines in existing technologies has been solved, and efficient and accurate leak research has been achieved.
Patent Information
- Application Number
- CN202423091830.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-13
AI Technical Summary
There is a lack of testing equipment suitable for studying leaks in carbon dioxide pipelines buried in soil. Existing technologies are mainly designed for overhead pipelines and cannot accurately detect leaks in buried soil.
A carbon dioxide pipeline leakage testing device was designed, including a test soil box, a data acquisition component, and a circumferentially rotatable test tube. By simulating the buried environment of the pipeline in the soil, the device uses a venting component to simulate leakage, and combines temperature and carbon dioxide concentration data acquisition to study the leakage of buried pipelines.
It improves the accuracy and flexibility of carbon dioxide pipeline leak detection, can simulate leaks in different directions, ensures that gas pressure and temperature match the actual situation, and improves the accuracy and efficiency of testing.
Smart Images
Figure CN223525963U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to pipeline leakage test technical field, specifically, relate to a carbon dioxide pipeline leakage testing device. BACKGROUND
[0002] Carbon dioxide is a colorless, odorless, non-toxic gas, not flammable, not explosive. Compared with the danger of refined oil, natural gas, carbon dioxide belongs to non-toxic suffocating gas, the density is heavier than air, after leakage, easy to gather in low-lying areas or closed space, not only destroy the surrounding environment, have certain inhibitory effect on soil microbial growth, also can cause human and livestock suffocation, poisoning, frostbite, even the risk of death. For the carbon dioxide pipeline buried in the soil, pipeline corrosion, pipeline material or structure failure, personnel violation operation etc. Can cause pipeline rupture and cause carbon dioxide leakage, therefore, it is particularly important to master accurate and timely carbon dioxide leakage detection technology.
[0003] At present, the leakage research of carbon dioxide pipeline is mostly for the leakage research of carbon dioxide in the atmosphere, and the test device is to arrange the pipeline overhead, which is not applicable to the leakage research of the pipeline buried in the soil. In other words, at present, there is a lack of a test device suitable for the leakage research of the carbon dioxide pipeline buried in the soil. SUMMARY
[0004] In view of the above deficiencies or defects in the prior art, the utility model provides a carbon dioxide pipeline leakage testing device suitable for the leakage research of the carbon dioxide pipeline buried in the soil.
[0005] To achieve the above purpose, the utility model provides a carbon dioxide pipeline leakage testing device, which comprises:
[0006] The test soil box is provided with an air inlet through hole;
[0007] The data acquisition assembly is arranged in the test soil box and is used for collecting temperature data and / or carbon dioxide concentration data;
[0008] The test pipe is circumferentially rotatably arranged in the inside of the test soil box and has a closed end and an open end, the open end of the test pipe is in alignment with the air inlet through hole and communicates with the air inlet through hole, and the pipe wall of the test pipe is connected with a gas bleeding assembly for overpressure relief.
[0009] Optionally, the carbon dioxide pipeline leakage testing device further comprises a first connecting flange and a rolling bearing, the first connecting flange is detachably fastened and connected on the test soil box and is arranged around the air inlet through hole, the outer ring of the rolling bearing is fixedly connected with the inner edge of the first connecting flange, and the open end of the test pipe is fixedly connected with the inner ring of the rolling bearing.
[0010] Optionally, the carbon dioxide pipeline leakage testing device further comprises:
[0011] an external air pipe connected outside the test soil box and in communication with the air inlet hole;
[0012] a valve arranged on the external air pipe and used to control the opening or closing of the external air pipe.
[0013] Optionally, the carbon dioxide pipeline leakage testing device further comprises:
[0014] a first pressure sensor arranged in the test pipe;
[0015] a second pressure sensor arranged in the external air pipe.
[0016] Optionally, the test pipe is provided with a plurality of air leakage assemblies, the plurality of air leakage assemblies are arranged at different positions in the axial direction of the test pipe and different positions in the circumferential direction of the test pipe.
[0017] Optionally, the air leakage assembly comprises:
[0018] an air leakage joint protruding outward from the wall of the test pipe and in communication with the test pipe;
[0019] a burst disc arranged at the air outlet end of the air leakage joint.
[0020] Optionally, the air leakage assembly further comprises a pressure cap detachably sleeved on the air leakage joint and provided with an air leakage hole in communication with the air outlet end of the air leakage joint.
[0021] Optionally, the test soil box has a detachable side wall, and the carbon dioxide pipeline leakage testing device further comprises a base, the test soil box is arranged on the base and can be turned between an inclined position and a horizontal position, in the inclined position, the test soil box is inclined downward with the detachable side wall inclined downward, in the horizontal position, the test soil box is horizontally placed.
[0022] Optionally, the test pipe is arranged in the length direction of the test soil box, and the detachable side wall comprises a plurality of splicing plates detachably spliced in sequence in the height direction.
[0023] Optionally, the carbon dioxide pipeline leakage testing device further comprises a turning driving mechanism, the turning driving mechanism is connected with the test soil box and used to drive the test soil box to rotate between the inclined position and the horizontal position.
[0024] By the technical scheme, when the leakage of the carbon dioxide pipeline buried in the soil is researched and tested, the test soil box can be filled with the soil, the test pipe in the test soil box can be buried in the soil to simulate that the pipeline is buried in the soil, then carbon dioxide is introduced into the test pipe through the air inlet through hole of the test soil box, the air release assembly releases air when the pressure in the test pipe reaches the test value, so that the leakage of the carbon dioxide pipeline is simulated, finally, the temperature data and / or the carbon dioxide concentration data in the test soil box are collected by the data acquisition assembly to monitor the temperature and / or the carbon dioxide concentration change in the test soil box, so that the leakage of the buried pipeline is tested and researched; wherein, the test pipe can rotate circumferentially, so that the orientation of the air release assembly is adjusted by rotating the test pipe before testing, so that the air release direction of the test pipe is changed, so that the carbon dioxide pipeline leakage testing device can simulate various conditions of the pipeline leaking in different directions; in addition, due to the overpressure air release function of the air release assembly, the pressure, temperature and phase state of the gas released from the test pipe through the air release assembly can be consistent with the actual leakage condition, so that the testing accuracy is improved.
[0025] Other features and advantages of the present application will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS
[0026] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application, but do not constitute a limitation on the present application. In the drawings:
[0027] Figure 1 is a structure diagram of the carbon dioxide pipeline leakage testing device in an embodiment of the present application;
[0028] Figure 2 is Figure 1 is a sectional view of the carbon dioxide pipeline leakage testing device in the embodiment of the present application;
[0029] Figure 3 is Figure 2 is a local enlarged view of A in the embodiment of the present application;
[0030] Figure 4 is Figure 2 is a local enlarged view of B in the embodiment of the present application.
[0031] BRIEF DESCRIPTION OF DRAWINGS:
[0032] 1 test soil box
[0033] 11 splicing plate 12 connecting lug
[0034] 2 test pipe
[0035] 3 air release assembly
[0036] 31 Vent fitting 32 Rupture disc
[0037] 33 cap
[0038] 4. External ventilation tube
[0039] 41 Second connecting flange
[0040] 5 Valves
[0041] 6. Tilting drive mechanism
[0042] 61 Manual hydraulic pump 62 Hydraulic telescopic rod
[0043] 7. Base
[0044] 8 First connecting flange
[0045] 9 Rolling bearings Detailed Implementation
[0046] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0047] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0048] In this utility model, unless otherwise stated, directional terms such as "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, 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 the embodiments of this utility model. The directional terms "inner" and "outer" refer to the inside and outside of the outline of each component itself.
[0049] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0050] This invention first provides a carbon dioxide pipeline leakage testing device.
[0051] In one embodiment, reference is made to the appendix. Figure 1 and attached Figure 2 As shown, it includes:
[0052] Test soil box 1 is equipped with an air inlet;
[0053] a data acquisition assembly arranged in the test soil box 1 and used for collecting temperature data and / or carbon dioxide concentration data;
[0054] the test pipe 2 is arranged in the test soil box 1 in a circumferential rotating manner and has a closed end and an open end, the open end of the test pipe 2 is in communication with the air inlet hole in a one-to-one correspondence, and a pressure relief assembly 3 for overpressure relief is connected to the pipe wall of the test pipe 2.
[0055] In this embodiment, when the leakage of the carbon dioxide pipeline buried in the soil is tested and researched, the test soil box 1 can be filled with soil, the test pipe 2 in the test soil box 1 is buried in the soil to simulate the pipeline buried in the soil, then carbon dioxide is introduced into the test pipe 2 through the air inlet hole of the test soil box 1, the pressure relief assembly is relieved when the pressure in the test pipe 2 reaches the test value, thereby simulating the carbon dioxide pipeline leakage, finally, the temperature data and / or carbon dioxide concentration data in the test soil box 1 are collected by the data acquisition assembly to monitor the temperature and / or carbon dioxide concentration change in the soil, so as to realize the test and research on the carbon dioxide leakage of the buried pipeline; wherein the test pipe can rotate circumferentially, thus arranged, the orientation of the pressure relief assembly 3 can be changed by rotating the test pipe 2 before testing, thereby changing the relief direction of the test pipe 2, so that the carbon dioxide pipeline leakage testing device can simulate various situations of pipeline leakage in different directions; in addition, due to the overpressure relief function of the pressure relief assembly, the pressure, temperature and phase of the gas when the test pipe 2 is relieved through the pressure relief assembly 3 can be consistent with the actual leakage situation, thereby improving the accuracy of the test.
[0056] In actual application, since the buried depth of the carbon dioxide pipeline is generally 1.5 m, in order to be more consistent with the actual situation, the specifications of the test soil box 1 can be designed as length of 3 m, width of 2 m and height of 2 m, the air inlet hole is arranged on the side wall of the test soil box 1 in the length direction and located at a position 0.5 m higher than the bottom wall of the test soil box 1, thus arranged, when the test soil box 1 is filled with soil, the overall height of the soil body is 2 m, and the test pipe 2 in communication with the air inlet hole in a one-to-one correspondence is 0.5 m higher than the bottom wall of the test soil box 1, so that even if the thickness of the soil above the test pipe 2 is 1.5 m, the buried depth of the carbon dioxide pipeline is simulated as 1.5 m.
[0057] Specifically, the data acquisition assembly can include a temperature sensor and a carbon dioxide concentration sensor, the temperature sensor is used to collect the temperature in the test soil box 1, and the carbon dioxide concentration sensor is used to collect the carbon dioxide concentration in the test soil box 1; in actual application, the carbon dioxide pipeline leakage testing device can further include a display, the display is in communication connection with the temperature sensor and the carbon dioxide concentration sensor respectively, so as to display the data collected by the temperature sensor and the carbon dioxide concentration sensor.
[0058] Specifically, the test soil box 1 can be formed by welding steel plates, and the inner wall surface is made of stainless steel material, so that the test soil box 1 can be effectively prevented from being corroded by soil, and the service life of the test soil box 1 is improved. In addition, the top of the test soil box 1 is open for filling soil.
[0059] In one embodiment, referring to the accompanying drawings Figure 2 and the accompanying drawings Figure 4 As shown, the carbon dioxide pipeline leakage testing device further comprises a first connecting flange 8 and a rolling bearing 9. The first connecting flange 8 is detachably fastened to the test soil box 1 and arranged around the air inlet hole. The outer ring of the rolling bearing 9 is fixedly connected to the inner edge of the first connecting flange 8, and the open end of the test pipe 2 is fixedly connected to the inner ring of the rolling bearing 9. In this way, the test pipe 2 is arranged to be rotatable around the test soil box 1.
[0060] Specifically, the outer ring of the rolling bearing 9 is fixedly connected to the inner edge of the first connecting flange 8 by welding, and the open end of the test pipe 2 is fixedly connected to the inner ring of the rolling bearing 9 by welding. In this way, the relative rotation of the inner and outer rings of the rolling bearing 9 achieves the relative rotation of the first connecting flange 8 and the test pipe 2, so that the first connecting flange 8 is fastened to the test soil box 1, and the test pipe 2 is rotatable relative to the test soil box 1.
[0061] Specifically, the test soil box 1 is provided with a plurality of first small holes arranged around the air inlet hole at intervals. The first connecting flange 8 is provided with a plurality of second small holes arranged along the circumference of the test pipe 2 at intervals. The plurality of first small holes and the plurality of second small holes are arranged one-to-one and connected by fasteners such as bolts, so that the first connecting flange 8 is detachably fastened to the test soil box 1.
[0062] In one embodiment, referring to the accompanying drawings Figure 1 , the accompanying drawings Figure 2 and the accompanying drawings Figure 4 As shown, the carbon dioxide pipeline leakage testing device further comprises:
[0063] An external air pipe 4 is connected to the outside of the test soil box 1 and in communication with the air inlet hole;
[0064] A valve 5 is arranged on the external air pipe 4 and used to control the opening or closing of the external air pipe 4.
[0065] In this embodiment, the external air pipe 4 can be connected to the carbon dioxide generating or storing device, and the test carbon dioxide can be introduced into the test pipe 2 through the external air pipe 4.
[0066] Specifically, the edge of the air inlet hole is provided with a plurality of first small holes arranged at intervals around the air inlet hole, one end of the outer connecting air pipe 4 is formed with a second connecting flange 41, and the second connecting flange 41 is provided with a plurality of third small holes arranged at intervals along the circumference of the outer connecting air pipe 4. The plurality of first small holes and the plurality of third small holes are arranged one by one and are connected by fasteners such as bolts, so that one end of the outer connecting air pipe 4 is fixedly connected to the outside of the test soil box 1 and communicates with the air inlet hole.
[0067] In order to ensure that the carbon dioxide in the outer connecting air pipe 4 can be completely introduced into the test pipe 2, the inner diameter of the outer connecting air pipe 4 can be consistent with the inner diameter of the test pipe 2, which is generally 100 mm.
[0068] In an embodiment, the carbon dioxide pipeline leakage testing device further comprises:
[0069] A first pressure sensor is arranged in the test pipe 2;
[0070] A second pressure sensor is arranged in the outer connecting air pipe 4.
[0071] It can be understood that the first pressure sensor is used to collect pressure data in the test pipe 2, and the second pressure sensor is used to collect pressure data in the outer connecting air pipe 4. The first pressure sensor and the second pressure sensor can also be in communication connection with the display device, so as to display the pressure conditions in the test pipe 2 and the outer connecting air pipe 4 in real time through the display device, and facilitate the test personnel to perform test operation according to the pressure conditions.
[0072] In the actual test process, the valve 5 is opened, carbon dioxide is introduced into the test pipe 2 through the outer connecting air pipe 4, when the pressure in the test pipe 2 rises close to the test value (at this time the air release assembly 3 is not released), the valve 5 is closed, and when the pressure in the outer connecting air pipe 4 rises to the set pressure, the valve 5 is opened, the high-pressure carbon dioxide in the outer connecting air pipe 4 is filled into the test pipe 2, so that the pressure in the test pipe 2 rises to the test value instantaneously, and the air release assembly 3 is released instantaneously. In this way, the real situation of pipeline leakage can be simulated, and the test data and results are closer to the actual situation.
[0073] In an embodiment, a plurality of air release assemblies 3 are connected to the wall of the test pipe 2, and the plurality of air release assemblies 3 are arranged at intervals along the axis of the test pipe 2 and are different in position on the circumference of the test pipe 2. In this way, the carbon dioxide pipeline leakage testing device can test the leakage conditions of the simulated pipeline at different positions on the circumference at the same time, improve the test efficiency, and simulate the situation of multiple leakage openings leaking at the same time.
[0074] In an embodiment, referring to FIGS. 1 to 4, Figure 2 and FIGS. 5 to 8, Figure 3 the air release assembly 3 comprises:
[0075] The air release joint 31 is formed by protruding outward from the pipe wall of the test pipe 2 and is in communication with the test pipe 2;
[0076] The rupture disc 32 is arranged at the air outlet end of the air release joint 31.
[0077] It can be understood that the overpressure leakage of the pipeline can be simulated by the rupture disc 32. In actual application, the rupture disc 32 is arranged to be detonated when the pressure in the test pipe 2 exceeds the test value, so that the air release joint 31 is in communication with the inside and outside of the test pipe 2, thereby forming the air release condition.
[0078] Specifically, the rupture disc 32 is welded on the air release joint 31.
[0079] Of course, in other embodiments, the air release assembly 3 can also have other structural forms, for example, the air release assembly 3 can also be a safety relief valve.
[0080] In an embodiment, with reference to the accompanying drawings Figure 2 and Figure 3 As shown, the air release assembly 3 further comprises a pressure cap 33, which is detachably sleeved on the air release joint 31 and is provided with an air release hole in alignment with the air outlet end of the air release joint 31.
[0081] In actual application, a plurality of different specifications of the pressure cap 33 can be designed, and the sizes and shapes of the air release holes of the plurality of different specifications of the pressure cap 33 are different, for example, the air release hole can be a circular hole with a diameter of 3 mm, a circular hole with a diameter of 5 mm, a rectangular hole with a size of 1 mm x 4 mm, or a rectangular hole with a size of 1 mm x 7 mm. In this way, by replacing the pressure cap 33 of different specifications, the leakage experiment simulating different leakage port specifications can be tested.
[0082] Specifically, the pressure cap 33 is detachably sleeved on the air release joint 31 by means of threaded connection.
[0083] In an embodiment, with reference to the accompanying drawings Figure 2 As shown, the test soil tank 1 has a detachable side wall, and the carbon dioxide pipeline leakage test device further comprises a base, and the test soil tank 1 is arranged on the base and can be turned between an inclined position and a horizontal position. In the inclined position, the test soil tank 1 is inclined downward with the detachable side wall deviated downward, and in the horizontal position, the test soil tank 1 is horizontally placed.
[0084] In this embodiment, by providing the test soil tank 1 with a detachable side wall, the removal of the soil in the test soil tank 1 is facilitated. When it is necessary to remove the soil in the test soil tank 1, the detachable side wall of the test soil tank 1 can be detached to form an opening, and the test soil tank 1 is turned to the inclined position, so that the soil in the test soil tank 1 can flow out of the opening spontaneously, thereby greatly improving the convenience and efficiency of soil removal. In this embodiment, by providing the test soil tank 1 with a detachable side wall, the removal of the soil in the test soil tank 1 is facilitated. When it is necessary to remove the soil in the test soil tank 1, the detachable side wall of the test soil tank 1 can be detached to form an opening, and the test soil tank 1 is turned to the inclined position, so that the soil in the test soil tank 1 can flow out of the opening spontaneously, thereby greatly improving the convenience and efficiency of soil removal.
[0085] In an embodiment, referring to Figs. 1 and 2, the carbon dioxide pipeline leakage testing device comprises a test soil box 1 and a test pipe 2. Figure 2 As shown, the test pipe 2 is arranged along the length direction of the test soil box 1, and the detachable side wall comprises a plurality of splicing plates 11 which are detachably spliced in sequence along the height direction.
[0086] In this embodiment, the lower splicing plates 11 can be installed first, then the soil is filled into the test soil box 1, and when the soil in the test soil box 1 reaches the preset height, the test pipe 2 can be supported and placed on the filled soil, then the test pipe 2 is connected with the air inlet hole, and after the installation of the test pipe 2 is completed, the remaining splicing plates 11 are installed to complete the side wall of the test soil box 1, and finally the soil is filled into the test soil box 1 to cover the test pipe 2. That is, by arranging the detachable side wall as a plurality of splicing plates 11 which are detachably spliced in sequence along the height direction, the soil filled into the test soil box 1 is facilitated, and the installation of the test pipe 2 is also facilitated, thereby effectively improving the convenience and efficiency of the installation of the carbon dioxide pipeline leakage testing device.
[0087] Further, the test soil box 1 comprises a box body, one side of the box body is provided with an opening extending from bottom to top, the top end of the opening is open, and the opening edge is formed as a slot structure, and the plurality of splicing plates 11 are connected in sequence at the opening from bottom to top by being inserted into the slot structure, and the adjacent two splicing plates 11 are connected by being inserted into each other, thereby forming the detachable side wall. Specifically, the two sides of the splicing plate 11 are formed with protrusions, which are inserted into the slots of the two side edges of the opening respectively, thereby being connected in sequence at the opening, and the top edge of the splicing plate 11 is formed with a groove, and the bottom edge is formed with a protrusion, and the adjacent two splicing plates 11 are inserted into each other through the protrusion inserted into the groove.
[0088] In an embodiment, referring to Figs. 1 and 2, the carbon dioxide pipeline leakage testing device comprises a test soil box 1 and a test pipe 2. Figure 1 and Figs. 3 and 4, the carbon dioxide pipeline leakage testing device further comprises a turnover driving mechanism 6 connected with the test soil box 1 and used for driving the test soil box 1 to rotate between the inclined position and the horizontal position. In this way, the convenience of removing the soil in the test soil box 1 is further improved. Figure 2
[0089] Specifically, the carbon dioxide pipeline leakage testing device can further comprise a base 7, the test soil box 1 is arranged on the base 7, the base 7 is provided with a fixing seat, the bottom of the test soil box 1 is provided with a connecting lug 12, the connecting lug 12 is rotatably connected with the fixing seat through a rotating shaft, so that the test soil box 1 can be flipped relative to the base 7, the flipping driving mechanism 6 is arranged on the base 7 and comprises a manual hydraulic pump 61 and a hydraulic telescopic rod 62, one end of the hydraulic telescopic rod 62 is hinged with the test soil box 1, the other end is hinged with the pump body of the manual hydraulic pump 61, and the hydraulic telescopic rod 62 is further in hydraulic connection with the manual hydraulic pump 61; the test soil box 1 can be driven to rotate between the inclined position and the horizontal position by operating the manual hydraulic pump 61 to make the hydraulic telescopic rod 62 extend or retract.
[0090] In order to facilitate the carrying of the test soil box 1, the bottom of the base 7 can be further provided with a self-locking swivel caster.
[0091] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0092] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0093] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.
[0094] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.
Claims
1. A carbon dioxide pipeline leak test apparatus, characterized by, include: The test soil box (1) is equipped with an air inlet. A data acquisition component is installed inside the test soil box (1) and is used to acquire temperature data and / or carbon dioxide concentration data; The test tube (2) is rotatably disposed inside the test soil box (1) and has a closed end and an open end. The open end of the test tube (2) is aligned and connected to the air inlet hole. A venting assembly (3) for overpressure venting is connected to the tube wall of the test tube (2).
2. The carbon dioxide pipe leak test apparatus of claim 1, wherein, The carbon dioxide pipeline leakage test device also includes a first connecting flange (8) and a rolling bearing (9). The first connecting flange (8) is detachably fastened to the test soil box (1) and arranged around the air inlet hole. The outer ring of the rolling bearing (9) is fixedly connected to the inner edge of the first connecting flange (8), and the open end of the test tube (2) is fixedly connected to the inner ring of the rolling bearing (9).
3. The carbon dioxide pipe leak test apparatus of claim 1, wherein, The carbon dioxide pipeline leakage testing device also includes: An external vent pipe (4) is connected to the outside of the test soil box (1) and is aligned and connected to the air inlet hole; A valve (5) is installed on the external vent pipe (4) and is used to control the opening or closing of the external vent pipe (4).
4. The carbon dioxide pipe leak test apparatus of claim 3, wherein, The carbon dioxide pipeline leakage testing device also includes: The first pressure sensor is installed inside the test tube (2); The second pressure sensor is located inside the external vent pipe (4).
5. The carbon dioxide pipe leak test apparatus of claim 1, wherein, Multiple venting components (3) are connected to the wall of the test tube (2). The multiple venting components (3) are arranged at intervals along the axial direction of the test tube (2) and are located at different positions in the circumferential direction of the test tube (2).
6. The carbon dioxide pipe leak test apparatus of claim 1, wherein, The venting assembly (3) includes: A vent connector (31) is formed by protruding outward from the wall of the test tube (2) and is connected to the test tube (2); A rupture disc (32) is installed at the outlet end of the vent joint (31).
7. The carbon dioxide pipe leak test apparatus of claim 6, wherein, The venting assembly (3) also includes a pressure cap (33), which is detachably fitted onto the venting connector (31) and has a venting hole that is aligned and communicates with the venting end of the venting connector (31).
8. The carbon dioxide pipe leak test apparatus of claim 1, wherein, The test soil box (1) has a detachable side wall. The carbon dioxide pipeline leakage test device also includes a base. The test soil box (1) is set on the base and can be flipped between an inclined position and a horizontal position. In the inclined position, the test soil box (1) is tilted downwards towards the detachable side wall. In the horizontal position, the test soil box (1) is horizontally placed.
9. The carbon dioxide pipe leak test apparatus of claim 8, wherein, The test tube (2) is arranged along the length of the test soil box (1), and the detachable sidewall includes a plurality of splicing plates (11) that are detachably spliced together in sequence along the height direction.
10. The carbon dioxide pipe leak test apparatus of claim 8, wherein, The carbon dioxide pipeline leakage test device also includes a flipping drive mechanism (6), which is connected to the test soil box (1) and is used to drive the test soil box (1) to rotate between an inclined position and a horizontal position.