A kind of tool convenient for mud pump suction line pressure test leak test

Abstract

This utility model discloses a tooling for facilitating pressure and leak testing of mud pump suction pipes, comprising: a workbench with a support frame arranged in an array on its upper side, and an inflation component on the upper side of the workbench; and a suction pipe body with a connecting mechanism on its side for convenient sealing testing, the suction pipe body being tightly fitted to the support frame. This tooling facilitates pressure and leak testing of mud pump suction pipes, wherein the first sealing pipe of the connecting mechanism is sealed to the branch port, and the second sealing pipe is sealed to the connection port. Depending on the testing requirements, sealing or connecting test components can be selected, adapting to pressure and leak testing at multiple connections. The first slot engages with the first sealing gasket, and the second slot engages with the second sealing gasket, ensuring stable installation of the sealing gasket and preventing leakage caused by gasket displacement during pressure testing, thus improving testing accuracy and facilitating disassembly for pressure and leak testing.

Description

Technical Field

[0001] This utility model relates to the field of pressure testing and leak testing technology, specifically a tooling for facilitating pressure testing and leak testing of mud pump suction pipelines. Background Technology

[0002] Pressure testing and leak testing at pipe connections are crucial steps in pipeline installation. They aim to verify the sealing, strength, and reliability of the pipeline system, ensuring its safe operation under design pressure. The purpose of pressure testing and leak testing is to confirm the presence of leaks at pipe connections (such as flanges, welds, and threads); to check whether the pipes and connections can withstand design pressure or higher pressures (such as overpressure tests); and to prevent accidents caused by leaks or ruptures during operation, ensuring the safety of personnel and equipment. Through a scientifically standardized pressure testing and leak testing process, the safety and reliability of the pipeline system can be effectively guaranteed, reducing subsequent operational risks.

[0003] Referring to Chinese Patent Publication No. CN222837772U, with the publication date of the publication date being May 6, 2025, a pressure testing and leak testing device for oil and gas pipeline connections is disclosed. This application has the effect of improving the stability of the clamping component when it is installed on the outer wall of the pipeline and improving the accuracy of pressure testing and leak testing.

[0004] However, while existing oil and gas pipeline connection pressure testing and leak testing devices have good stability when installed on the outer wall of the pipeline using clamping components, they are relatively cumbersome to operate when testing multiple connections of a specific pipeline, which is not conducive to testing the pipeline. Therefore, there is still room for further improvement.

[0005] Therefore, we propose a tooling for facilitating pressure testing and leak testing of the mud pump suction pipeline, in order to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a tooling for facilitating pressure testing and leak detection of mud pump suction pipelines, in order to solve the problem that, in the process of using the prior art oil and gas pipeline connection pressure testing and leak detection device mentioned above, although it has good stability when installed on the outer wall of the pipeline using clamping parts, the operation is relatively cumbersome when testing and leaking multiple connections of a specific pipeline, which is not conducive to testing and leaking the pipeline. Therefore, there is still room for further improvement.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a tooling for facilitating pressure testing and leak testing of the mud pump suction pipeline, comprising:

[0008] A workbench, wherein a support frame is provided on the upper side of the workbench and the support frame is distributed in an array, and an inflatable component is provided on the upper side of the workbench;

[0009] Also includes:

[0010] The suction tubing body has a connection mechanism on its side for convenient testing of sealing performance, and the suction tubing body is tightly fitted to the support frame.

[0011] The outside of the suction pipe body is provided with a sealing mechanism for pressure testing and leak testing, and the outside of the suction pipe body is provided with a first test component and a second test component, wherein the first test component corresponds one-to-one with the branch port, and the second test component corresponds one-to-one with the connection port.

[0012] Preferably, the connecting mechanism is composed of a branch port, a first sealing pipe, a connecting port, and a second sealing pipe. The upper side of the suction pipe body is provided with a branch port, and the branch ports are distributed in an array. The upper side of the branch port is in close contact with the first sealing pipe, and the first sealing pipe is connected to the branch port by bolts and nuts.

[0013] Preferably, the side of the inhalation tubing body is provided with a connection port, and the connection ports are distributed in an array. The side of the connection port is in close contact with the second sealing tube, and the connection port is connected to the second sealing tube by bolts and nuts.

[0014] Preferably, the sealing mechanism is composed of a first test component and a second test component, wherein both the first test component and the second test component are composed of a first clamping ring, a second clamping ring, a fastening screw, a first slot, a first sealing gasket, a second slot, and a second sealing gasket. One side of the first clamping ring is connected to the second clamping ring by a hinge, and the other side of the first clamping ring is fixedly connected to the second clamping ring by a fastening screw.

[0015] Preferably, both the first clamping ring and the second clamping ring are tightly fitted to the suction pipe body, and the upper side of the first clamping ring is provided with a first slot, and the lower side of the second clamping ring is also provided with a first slot.

[0016] Preferably, the first slot engages with the first sealing gasket, and the inner sides of both the first clamping ring and the second clamping ring are provided with a second slot, which engages with the second sealing gasket.

[0017] Preferably, a pressure gauge is provided on the upper side of the second clamping ring, and the first clamping ring is connected to the inflation component through an air supply pipe.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the tooling for facilitating pressure testing and leak testing of mud pump suction pipelines has a first sealing pipe that is sealed to the branch port and a second sealing pipe that is sealed to the connection port. The tooling can be selected to seal or connect test components according to test requirements, adapting to pressure testing and leak testing at multiple connection points. The first slot engages with the first sealing gasket and the second slot engages with the second sealing gasket, ensuring that the sealing gasket is installed firmly and avoiding leakage caused by gasket displacement during pressure testing, thus improving test accuracy and facilitating disassembly for pressure testing and leak testing.

[0019] 1. It is equipped with a workbench, a support frame and a suction pipe body. The workbench provides stable support for the whole, and the support frame supports and positions the suction pipe body to ensure that the pipe remains stable during the pressure test.

[0020] 2. It is equipped with a connection mechanism, branch port and connection port. The first sealing tube of the connection mechanism is sealed to the branch port, and the second sealing tube is sealed to the connection port. The sealing or connection test components can be selected according to the test requirements to adapt to pressure testing and leak testing at multiple connection points.

[0021] 3. It is equipped with a sealing mechanism, a first clamping ring and a second clamping ring. The first clamping ring and the second clamping ring are closed by rotating the hinge, and the fastening screw locks the pipe to achieve tight clamping. The second sealing gasket on the inner side is in contact with the outer wall of the pipe, and the first sealing gasket seals the groove. The double seal ensures the sealing performance during pressure testing.

[0022] 4. It is equipped with an inflation component, a pressure gauge, and a test assembly. The inflation component fills the test assembly with gas through the gas supply pipe. The pressure gauge displays the pressure value in real time. If the pressure drops, it indicates that there is a leak, allowing for a direct judgment of the pressure test results.

[0023] 5. It is equipped with a first slot, a second slot, and a sealing gasket. The first slot engages with the first sealing gasket, and the second slot engages with the second sealing gasket, ensuring that the sealing gasket is installed firmly and avoiding leakage caused by gasket displacement during pressure testing. This improves test accuracy and facilitates disassembly for pressure testing and leak detection. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the connection structure between the first clamping ring and the second clamping ring of this utility model;

[0027] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0028] Figure 5 This is a schematic diagram of the connection structure of the suction pipe body, branch port, and connection port of this utility model.

[0029] In the diagram: 1. Workbench; 2. Support frame; 3. Suction pipe body; 4. Branch port; 5. First sealing pipe; 6. Connection port; 7. Second sealing pipe; 8. Inflator; 9. First test assembly; 10. Second test assembly; 11. First clamping ring; 12. Second clamping ring; 13. Fastening screw; 14. First slot; 15. First sealing gasket; 16. Second slot; 17. Second sealing gasket; 18. Pressure gauge. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-5 As shown, this utility model provides a technical solution: a tooling for facilitating pressure testing and leak testing of a mud pump suction pipeline, comprising: a workbench 1, a support frame 2, a suction pipeline body 3, a branch port 4, a first sealing pipe 5, a connecting port 6, a second sealing pipe 7, an air-filling component 8, a first testing component 9, a second testing component 10, a first clamping ring 11, a second clamping ring 12, a fastening screw 13, a first slot 14, a first sealing gasket 15, a second slot 16, a second sealing gasket 17, and a pressure gauge 18.

[0032] While existing oil and gas pipeline connection pressure testing and leak detection devices offer good stability when installed on the outer wall of the pipeline using clamping components, they become relatively cumbersome when testing multiple connections of a specific pipeline, making them unsuitable for comprehensive pipeline testing. Therefore, there is room for further improvement.

[0033] like Figure 1 , Figure 2 and Figure 5 As shown, before conducting pressure testing and leak testing, the pipeline must first be positioned and fixed. The suction pipeline body 3 to be tested is placed stably on the support frame 2 on the upper side of the workbench 1. The support frame 2 is arranged in an array, and its top can be designed as an arc-shaped structure that fits the outer wall of the suction pipeline body 3 to ensure that the pipeline will not roll or shift during the pressure test, providing a stable foundation for subsequent operations.

[0034] For the branch port 4 on the main body of the suction pipeline 3 that requires pressure and leak testing, align the connection end of the pipeline with the flange face of the branch port 4, ensuring that the sealing surfaces of both are completely in contact. Then, insert bolts into the flange holes and tighten them evenly with nuts to achieve a fixed connection between the pipeline and the branch port 4. During tightening, ensure even force distribution to avoid deformation of the sealing surface due to localized overtightening. For the branch port 4 that does not require testing, use the first sealing pipe 5 for sealing. Align the sealing end of the first sealing pipe 5 with the branch port 4 and fix it with bolts and nuts. A rubber sealing gasket can be added to the contact surface to further enhance the sealing performance and prevent leakage from non-test ports from affecting the overall test results.

[0035] The treatment of connection port 6 is the same as that of branch port 4: the connection port 6 that needs to be tested is connected to the corresponding pipe, and the connection port 6 that does not need to be tested is sealed by the second sealing pipe 7 to ensure that in the entire pipeline system, only the interface to be tested is connected to the test component, and the other interfaces are in a sealed state. It should be noted that the components of the first test component 9 and the second test component 10 are the same, only the size is different.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, for each connection point to be tested, the first clamping ring 11 and the second clamping ring 12 are inserted from both sides of the suction pipe body 3, so that the hinge ends of the two clamping rings are aligned and cover the outside of the connection point.

[0037] Rotate the first clamping ring 11 and the second clamping ring 12 to close them via the hinge. At this time, the inner sides of the two clamping rings must be tightly fitted against the outer wall of the suction pipe body 3. The second sealing gasket 17 engaged in the second slot 16 on the inner side of the first clamping ring 11 and the second clamping ring 12 will be in complete contact with the outer wall of the pipe, forming the first sealing line to prevent the pressure medium from leaking from the gap between the pipe and the clamping rings. At the same time, the first sealing gasket 15 engaged in the first slot 14 on the upper side of the first clamping ring 11 and the lower side of the second clamping ring 12 will be fitted against the interface edge of the test component, forming the second sealing line to block the leakage path of the pressure medium from the interface to the clamping rings.

[0038] Connect the output end of the inflation component 8 to the air inlet of the first clamping ring 11 in the first test component 9 and the second test component 10 through the air supply pipe. Both ends of the air supply pipe must be fixed with special connectors to ensure a tight connection and no air leakage. Turn on the inflation component 8 and fill the pressure medium into the suction pipeline body 3 and the test component. At the same time, observe the pressure gauge 18 on the upper side of the second clamping ring 12. When the pressure value reaches the design test pressure of the pipeline, close the valve of the inflation component 8 and stop inflation.

[0039] Maintain the pressure and let it stand for the specified time, during which time continuously observe the changes in the pressure gauge 18: if the pressure value remains stable without significant drop, it indicates that the sealing of the test connection is good and meets the requirements; if the pressure value drops and the drop exceeds the allowable range, it indicates that there is a leak at the connection. After closing the inflation component 8 and releasing the pressure, check whether the sealing gasket is installed in place, whether the bolts are loose, or whether there are defects in the interface. After repair, retest.

[0040] After the pressure and leak test is completed, open the exhaust valve of the inflation component 8 to slowly release the pressure in the test system until the pressure gauge 18 shows zero, ensuring safe operation. Rotate the nut on the fastening screw 13 in the reverse direction to loosen the first clamping ring 11 and the second clamping ring 12, and remove them from the pipeline connection. Sequentially remove the first test component 9, the second test component 10, the first sealing tube 5, and the second sealing tube 7, and clean the interface surface on the suction pipeline body 3 to complete the entire pressure and leak test process.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tooling for facilitating pressure testing and leak testing of the suction pipeline of a mud pump, comprising: Workbench (1), the upper side of the workbench (1) is provided with a support frame (2), and the support frame (2) is distributed in an array, and the upper side of the workbench (1) is provided with an inflatable component (8); Its characteristic is that it further includes: The suction pipe body (3) is provided with a connection mechanism on its side for convenient testing of sealing performance, and the suction pipe body (3) is tightly fitted with the support frame (2); The suction pipe body (3) is provided with a sealing mechanism for pressure testing and leak testing, and the suction pipe body (3) is provided with a first test component (9) and a second test component (10), wherein the first test component (9) corresponds one-to-one with the branch port (4), and the second test component (10) corresponds one-to-one with the connection port (6).

2. The tooling for facilitating pressure testing and leak testing of the mud pump suction pipeline according to claim 1, characterized in that: The connecting mechanism is composed of a branch port (4), a first sealing pipe (5), a connecting port (6), and a second sealing pipe (7). The upper side of the suction pipe body (3) is provided with a branch port (4), and the branch ports (4) are distributed in an array. The upper side of the branch port (4) is closely fitted with the first sealing pipe (5), and the first sealing pipe (5) is connected to the branch port (4) by bolts and nuts.

3. The tooling for facilitating pressure testing and leak testing of the mud pump suction pipeline according to claim 2, characterized in that: The side of the inhalation tubing body (3) is provided with a connection port (6), and the connection ports (6) are arranged in an array. The side of the connection port (6) is in close contact with the second sealing tube (7), and the connection port (6) and the second sealing tube (7) are connected by bolts and nuts.

4. The tooling for facilitating pressure testing and leak testing of the mud pump suction pipeline according to claim 1, characterized in that: The sealing mechanism is composed of a first test component (9) and a second test component (10). The first test component (9) and the second test component (10) are each composed of a first clamping ring (11), a second clamping ring (12), a fastening screw (13), a first slot (14), a first sealing gasket (15), a second slot (16), and a second sealing gasket (17). One side of the first clamping ring (11) is connected to the second clamping ring (12) by a hinge, and the other side of the first clamping ring (11) is fixedly connected to the second clamping ring (12) by the fastening screw (13).

5. The tooling for facilitating pressure testing and leak testing of the mud pump suction pipeline according to claim 4, characterized in that: The first clamping ring (11) and the second clamping ring (12) are both tightly fitted to the suction pipe body (3), and the first clamping ring (11) has a first slot (14) on its upper side, and the second clamping ring (12) also has a first slot (14) on its lower side.

6. The tooling for facilitating pressure testing and leak testing of the mud pump suction pipeline according to claim 5, characterized in that: The first slot (14) is engaged with the first sealing gasket (15), and the inner sides of the first clamping ring (11) and the second clamping ring (12) are both provided with a second slot (16), and the second slot (16) is engaged with the second sealing gasket (17).

7. The tooling for facilitating pressure testing and leak testing of the mud pump suction pipeline according to claim 4, characterized in that: A pressure gauge (18) is provided on the upper side of the second clamping ring (12), and the first clamping ring (11) is connected to the inflation member (8) through an air supply pipe.

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