A pressure testing device for seamless steel pipes

Abstract

This utility model discloses a pressure testing device for seamless steel pipes, relating to the field of steel pipe pressure testing technology. The device includes a testing frame with a testing mechanism for pressure testing of the steel pipe. The testing mechanism includes two C-shaped uprights and two air injection pumps, each fixedly installed at the upper end of the testing frame. The two air injection pumps are located at the lower ends of the two C-shaped uprights. The inner wall of the testing frame has mounting grooves and multiple testing water tanks. This utility model, by using testing water tanks and fixed pipes, allows the steel pipe to be immersed in each testing water tank during testing. When air bubbles emerge from the steel pipe, the leaking pipe can be quickly located, improving testing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe pressure testing technology, and in particular to a pressure testing device for seamless steel pipes. Background Technology

[0002] A seamless steel pipe pressure testing device is a device used to test the performance and quality of seamless steel pipes under different pressure conditions. By applying a certain pressure to the seamless steel pipe, it observes whether the steel pipe can withstand the corresponding pressure without cracking or deforming, thereby assessing whether the strength of the steel pipe meets the requirements and ensuring that it can withstand the specified working pressure in actual use. Under pressure, the testing device can detect whether there are any leaks in the welds, joints, and pipe walls of the seamless steel pipe, so as to ensure that the steel pipe has good sealing performance when transporting fluids (such as oil, natural gas, water, etc.).

[0003] However, existing seamless steel pipe pressure testing devices have the following drawbacks: in existing steel pipe pressure testing, multiple steel pipes are generally concentrated in a water tank. During the test, if air bubbles emerge from the steel pipe, it is difficult to quickly identify the leaking steel pipe. In addition, whether testing a single steel pipe or multiple steel pipes, the water tank needs to be filled with water before the test can be performed, which wastes water resources. Utility Model Content

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a seamless steel pipe pressure testing device, which solves the technical problems of existing steel pipe pressure testing, which generally involves multiple steel pipes being concentrated in one water tank. During the test, if air bubbles emerge from the steel pipe, it is difficult to quickly identify the leaking steel pipe. Furthermore, regardless of whether single or multiple steel pipes are being tested, the water tank must be filled with water before testing can be performed, resulting in a waste of water resources.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pressure testing device for seamless steel pipes includes a testing frame with a testing mechanism for pressure testing of the steel pipe. The testing mechanism includes two C-shaped uprights and two air injection pumps. The two C-shaped uprights are fixedly installed at the upper end of the testing frame. The two air injection pumps are located at the lower ends of the two C-shaped uprights. The inner wall of the testing frame has a mounting groove and multiple testing water tanks. Each testing water tank is fixedly installed on the inner wall of the mounting groove. An adjusting cylinder is fixedly installed at the lower end of each of the two C-shaped uprights.

[0008] Preferably, the lower ends of both of the detection air pumps are provided with a diverter pipe, and a connecting air pipe is fixedly installed between the two detection air pumps and the diverter pipe.

[0009] Preferably, at least two fixed pipes are fixedly installed at the lower ends of both of the two diversion pipes.

[0010] Compared with the prior art, the present invention has the following beneficial effects.

[0011] I. This device combines a testing water tank with a fixed pipeline. When testing steel pipes, the steel pipes are immersed in each testing water tank. When bubbles appear on the steel pipe, the leaking steel pipe can be quickly located, thus improving the testing efficiency.

[0012] Second, this device has a separate testing water tank. When testing steel pipes, only the testing water tank under the steel pipe to be tested needs to be filled with water. Steel pipes that do not need to be tested do not need to be filled with water, which saves water and reduces testing costs. Attached Figure Description

[0013] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0014] Figure 1 This is a structural diagram of the testing stand of this utility model;

[0015] Figure 2 This is a structural diagram of the C-shaped upright of this utility model;

[0016] Figure 3 This is a structural diagram of the diversion tube of this utility model;

[0017] Figure 4 This is a structural diagram of the testing tank of this utility model.

[0018] Legend: 1. Inspection stand; 11. Inspection tank; 12. Installation slot; 2. C-shaped upright; 21. Adjusting cylinder; 3. Inspection air pump; 31. Diverter pipe; 32. Fixed pipe; 33. Connecting air pipe. Detailed Implementation

[0019] This application provides a seamless steel pipe pressure testing device, which effectively solves the technical problems of existing steel pipe pressure testing methods. These methods typically involve multiple steel pipes being placed in a single water tank. During testing, if air bubbles emerge from the steel pipe, it is difficult to quickly locate the leaking pipe. Furthermore, regardless of whether testing a single or multiple steel pipes, the water tank must be filled with water, wasting water resources. This device, by using a testing water tank 11 and a fixed pipe 32 in conjunction, allows the steel pipe to be immersed in each testing water tank 11 during testing. When air bubbles emerge from the steel pipe, the leaking pipe can be quickly located, improving testing efficiency. Example

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4 The technical solution described in this application effectively solves the problems in existing steel pipe pressure testing, where multiple steel pipes are typically placed in a water tank. During testing, if air bubbles emerge from a steel pipe, it is difficult to quickly pinpoint the leaking pipe. Furthermore, regardless of whether testing a single or multiple steel pipes, the water tank must be filled to the brim, wasting water resources. The overall approach is as follows: A seamless steel pipe pressure testing device includes a testing stand 1, on which a testing mechanism for pressure testing of the steel pipe is mounted. The testing mechanism includes a C-shaped upright 2 and a... The test air pump 3 and the number of C-shaped uprights 2 are two. The two C-shaped uprights 2 are fixedly installed at the upper end of the test frame 1. The number of test air pumps 3 is two. The two test air pumps 3 are located at the lower end of the two C-shaped uprights 2 respectively. The inner side wall of the test frame 1 is provided with an installation groove 12. The inner side wall of the test frame 1 is provided with multiple test water tanks 11. Each test water tank 11 is fixedly installed on the inner side wall of the installation groove 12. The user can fill the test water tank 11 with water. The user can fill the test water tank 11 below the steel pipe to be tested with water.

[0021] The lower ends of the two C-shaped uprights 2 are fixedly equipped with adjusting cylinders 21, the lower ends of the two detection air pumps 3 are equipped with diversion pipes 31, the two detection air pumps 3 and the diversion pipes 31 are fixedly connected with connecting air pipes 33, and the lower ends of the two diversion pipes 31 are fixedly equipped with at least two fixed pipes 32. After water filling is completed, the user can start the adjusting cylinders 21. The start of the adjusting cylinders 21 will drive the diversion pipes 31 to move downward. The downward movement of the diversion pipes 31 will drive each fixed pipe 32 to move downward. The downward movement of each fixed pipe 32 will drive the steel pipe between each pair of fixed pipes 32 to move downward and be immersed in the detection water tank 11.

[0022] When testing the pressure of a steel pipe, the user can first fix the steel pipe. The user can place the steel pipe between two fixed pipes 32 and use the fixing fixture to seal and fix the two ends of the pipe between the two fixed pipes 32. The user can use the same method to fix all the steel pipes to be tested between each fixed pipe 32. After the steel pipe is fixed.

[0023] After immersing the steel pipe into the testing water tank 11, the user can start the testing air pump 3. When the testing air pump 3 is started, it will slowly inject air into the steel pipe through the air pipe 33 and the diverter pipe 31. The user can observe the situation of the steel pipe in the testing water tank 11 to see if there are any bubbles, thereby testing the pressure of the steel pipe.

[0024] To address the problems existing in the prior art, this utility model provides a seamless steel pipe pressure testing device. This device uses a testing water tank 11 and a fixed pipe 32 in combination. When testing the steel pipe, the steel pipe is immersed in each testing water tank 11. When air bubbles appear in the steel pipe, the leaking steel pipe can be quickly located, thus improving the testing efficiency.

[0025] Testing stand 1: Serves as the main support for the entire seamless steel pipe pressure testing device, providing an installation foundation for other structures.

[0026] Test tank 11: Used to hold water. When the steel pipe is pressure tested, the steel pipe is immersed in it, and the presence of bubbles is observed in the test tank 11.

[0027] Mounting slot 12: Used to fix and install the testing water tank 11, ensuring the stable installation of the testing water tank 11 on the testing stand 1.

[0028] C-shaped uprights 2: There are two of them, which are fixedly installed on the upper end of the inspection stand 1. They are used to install the adjusting cylinder 21 and provide support and fixing points for the adjusting cylinder 21.

[0029] Adjusting cylinder 21: It is fixedly installed at the lower end of the C-shaped upright 2. When it is started, it drives the diversion pipe 31 to move downward, which in turn drives the fixed pipe 32 to move downward, so as to immerse the steel pipe fixed between the fixed pipes 32 into the test water tank 11 and complete the preparatory action before the test.

[0030] The air injection pump 3 is a two-unit pump located at the lower end of the two C-shaped uprights 2. After starting, it slowly injects air into the steel pipe fixed between the fixed pipes 32 through the air pipe 33 and the diversion pipe 31, providing a pressure source for the pressure test of the steel pipe.

[0031] Diverter pipe 31: Connects the detection gas injection pump 3 and the fixed pipe 32, and diverts the gas output from the detection gas injection pump 3 to each fixed pipe 32 evenly to ensure the balance of gas pressure in the steel pipe.

[0032] Fixed pipe 32: Used to fix the steel pipe. The steel pipe is placed between two fixed pipes 32, and the two ends of the steel pipe are sealed and fixed by the fixing fixture. At the same time, the steel pipe is driven by the adjusting cylinder 21 to be immersed in the test water tank 11.

[0033] Connecting pipe 33: Connects the detection gas injection pump 3 and the diversion pipe 31, serving as a gas transmission channel to deliver the gas generated by the detection gas injection pump 3 to the diversion pipe 31.

[0034] Working principle:

[0035] When testing the pressure of a steel pipe, the user can first fix the steel pipe. The user can place the steel pipe between two fixed pipes 32 and use a fixing fixture to seal and fix the two ends of the pipe between the two fixed pipes 32. The user can use the same method to fix all the steel pipes to be tested between each fixed pipe 32. After fixing the steel pipe, the user can fill the test water tank 11 with water. The user can fill the test water tank 11 corresponding to the steel pipe to be tested with water. After filling with water, the user can start the adjusting cylinder 21. The starting of the adjusting cylinder 21 will drive the diversion pipe 31 downwards. The downward movement of the diversion pipe 31 will drive each fixed pipe 32 downwards. The downward movement of each fixed pipe 32 will drive the steel pipe between each pair of fixed pipes 32 downwards and immerse it in the test water tank 11. After the steel pipe is immersed in the test water tank 11, the user can start the test air injection pump 3. The start of the test air injection pump 3 will connect to... Air is slowly injected into the steel pipe through the air tube 33 and the diversion tube 31. The user can observe the situation of the steel pipe in the test water tank 11 to see if bubbles emerge, thereby testing the pressure of the steel pipe. In existing steel pipe pressure tests, multiple steel pipes are usually concentrated in one water tank. During the test, if bubbles emerge from the steel pipe, it is difficult to quickly locate the leaking steel pipe. Moreover, whether testing a single steel pipe or multiple steel pipes, the water tank needs to be filled with water before testing, which wastes water resources. This device, by setting up a test water tank 11 and a fixed pipe 32 in conjunction, allows the steel pipe to be immersed in each test water tank 11 during testing. When bubbles emerge from the steel pipe, the leaking steel pipe can be quickly located, improving the testing efficiency. Furthermore, by setting up a separate test water tank 11, only the test water tank 11 under the steel pipe to be tested needs to be filled with water during testing. The test water tank 11 under the steel pipe that does not need to be filled with water is not required under the steel pipe that does not need to be tested, saving water resources and reducing testing costs.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A pressure testing device for seamless steel pipes, comprising a testing stand (1), characterized in that, The testing stand (1) is equipped with a testing mechanism for pressure testing of steel pipes; The detection mechanism includes a C-shaped upright (2) and a detection air pump (3). There are two C-shaped uprights (2), and both C-shaped uprights (2) are fixedly installed on the upper end of the detection frame (1). There are two detection air pumps (3), and the two detection air pumps (3) are located at the lower end of the two C-shaped uprights (2).

2. The pressure testing device for seamless steel pipes as described in claim 1, characterized in that: The inner wall of the testing stand (1) is provided with an installation groove (12), and the inner wall of the testing stand (1) is provided with multiple testing water tanks (11).

3. The pressure testing device for seamless steel pipes as described in claim 2, characterized in that: Each of the aforementioned test tanks (11) is fixedly installed on the inner side wall of the mounting tank (12).

4. The pressure testing device for seamless steel pipes as described in claim 3, characterized in that: An adjusting cylinder (21) is fixedly installed at the lower end of each of the two C-shaped uprights (2).

5. The pressure testing device for seamless steel pipes as described in claim 4, characterized in that: Both of the two detection air pumps (3) are provided with a shunt pipe (31) at their lower ends, and a connecting air pipe (33) is fixedly installed between the two detection air pumps (3) and the shunt pipe (31).

6. The pressure testing device for seamless steel pipes as described in claim 5, characterized in that: At least two fixed pipes (32) are fixedly installed at the lower ends of the two diversion pipes (31).

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