Automatic testing device for long-distance oil and gas conveying pipe network instrument

Abstract

An automatic testing device for a long-distance oil and gas pipeline network instrument relates to the technical field of testing of instruments and meters and comprises a horizontally-arranged integrated testing table, and a pipeline simulation assembly, a comprehensive testing assembly and an auxiliary mounting assembly are arranged on the integrated testing table. The pipeline simulation assembly comprises a first oil storage tank and a second oil storage tank which are fixedly connected to the two sides of the upper surface of the integrated test bench, a first flow dividing pipe and a second flow dividing pipe are arranged between the first oil storage tank and the second oil storage tank in an extending mode, and the comprehensive test assembly comprises a pressure regulating valve, a temperature transmitter and an electromagnetic flowmeter. The pressure regulating valve is fixedly installed on the upper portion of the middle section of the first shunt pipe, the temperature transmitter is fixedly installed on the upper portion of the middle section of the second shunt pipe, and the electromagnetic flowmeter is fixedly arranged between the first oil storage tank and the second oil storage tank. According to the invention, the problems of low testing efficiency, poor testing compatibility, insufficient testing precision, low automation and intelligence level and the like of a long-distance oil and gas pipeline network instrument testing method in practical application in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of instrument testing, and particularly to an automatic testing device for long-distance oil and gas pipeline network instruments. Background Art

[0002] A long-distance oil and gas pipeline network refers to a pipeline network system for long-distance transportation of crude oil, refined oil, and natural gas. As an important infrastructure for energy transportation, the long-distance oil and gas pipeline network has the characteristics of high efficiency, safety, economy, etc., and is an important support for ensuring energy supply and economic development.

[0003] In terms of system composition, the long-distance oil and gas pipeline network is a complex integrated system, mainly including core components such as pipelines, pumping stations and compressor stations, storage tanks and gas storage facilities, valves and control systems, monitoring and communication systems, pigging devices and pigging stations, metering stations, cathodic protection systems, safety and emergency systems, and control centers. These systems work together to ensure the safe and efficient operation of the long-distance oil and gas pipeline network.

[0004] Among them, the metering station, as a key node in the pipeline network operation, is mainly used to measure the flow rate and quality of oil and gas to ensure that the transportation volume meets the design requirements. The core equipment of the metering station includes high-precision flow meters and various professional instruments. The instrument system plays an irreplaceable role in the long-distance oil and gas pipeline network and is a key device to ensure the safe and efficient operation of the system. They are mainly used for real-time monitoring, precise control, and reliable recording of key parameters such as pressure, temperature, flow rate, liquid level, etc. Common types of instruments include pressure instruments, temperature instruments, flow instruments, liquid level instruments, and analytical instruments, etc. Through an advanced instrument system and intelligent control system, real-time monitoring, automatic adjustment, and remote management of the pipeline network operation can be achieved, significantly improving the operation efficiency and safety of the pipeline network.

[0005] In view of the importance of the instrument system in the operation of the long-distance oil and gas pipeline network, strict parameter testing and calibration must be carried out before the instrument is put into use. This process is crucial for improving measurement accuracy, ensuring system safety, enhancing operation efficiency, extending equipment service life, and ensuring data reliability.

[0006] However, the existing testing methods for long-distance oil and gas pipeline network instruments still have the following main problems in practical applications: 1. High dependence on manual labor and low testing efficiency: The current testing process overly relies on manual operations, resulting in slow testing speed and easily introducing human errors due to operation mistakes, seriously affecting the consistency and reliability of test results.

[0007] 2. Scattered testing equipment and insufficient compatibility: Different types of instruments (such as pressure, flow rate, temperature, etc.) require the use of independent testing equipment, and there is a lack of effective integration and communication capabilities between the equipment, increasing the complexity and cost of testing.

[0008] 3. Lack of real-time comparison, limited test accuracy: The existing test methods lack a real-time data comparison mechanism, making it difficult to ensure the accuracy and reliability of test results.

[0009] 4. Low level of automation and intelligence: The degree of automation in the test process is insufficient, lacking intelligent test schemes and data analysis capabilities, and it is difficult to meet the requirements of modern long-distance oil and gas pipelines for efficient and accurate testing.

[0010] To address these problems, it is urgent to develop more advanced and intelligent instrument testing methods and technologies to improve the efficiency and reliability of instrument testing for long-distance oil and gas pipelines, thereby better ensuring the safe and stable operation of the pipeline network.

[0011] In summary, the existing technology obviously has inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0012] In view of the defects in the existing technology, the present invention provides an automated testing device for instruments in long-distance oil and gas pipelines to solve the problems of low testing efficiency, poor testing compatibility, insufficient testing accuracy, and low levels of automation and intelligence in the testing methods of instruments in long-distance oil and gas pipelines in actual applications.

[0013] To achieve the above object, the present invention provides the following technical solutions: An automated testing device for instruments in long-distance oil and gas pipelines includes a horizontally arranged integrated test bench, on which a pipeline simulation component, a comprehensive test component, and an auxiliary installation component are respectively provided.

[0014] As an optimized solution, the pipeline simulation component includes a first oil storage tank and a second oil storage tank fixedly connected to both sides of the upper surface of the integrated test bench. The two longitudinal end faces of the first oil storage tank are respectively externally connected to a first elbow pipe and a second elbow pipe, and the two longitudinal end faces of the second oil storage tank are respectively externally connected to a third elbow pipe and a fourth elbow pipe.

[0015] As an optimized solution, the ends of the first elbow pipe and the third elbow pipe are respectively fixedly connected to a three-way vertical pipe, and the ends of the second elbow pipe and the fourth elbow pipe are respectively fixedly connected to a three-way longitudinal pipe. A reversing valve is provided in both the three-way longitudinal pipe and the three-way vertical pipe.

[0016] As an optimized solution, a first shunt pipe extending longitudinally is provided between the two three-way vertical pipes, and a second shunt pipe extending longitudinally is provided between the two three-way longitudinal pipes.

[0017] As an optimized solution, two conveying intermediate pipes are respectively and fixedly arranged between the horizontally opposite three-way vertical pipes and the three-way longitudinal pipes. A horizontal test joint is fixed on one of the conveying intermediate pipes, and a vertical test joint is fixed on the other conveying intermediate pipe.

[0018] As an optimized solution, the comprehensive test assembly includes a pressure regulating valve and a temperature transmitter. The pressure regulating valve is fixedly installed on the upper part of the middle section of the first shunt pipe, and the temperature transmitter is fixedly installed on the upper part of the middle section of the second shunt pipe.

[0019] As an optimized solution, a horizontally extending strip-shaped connecting plate is arranged between the first fuel tank and the second fuel tank. A transfer pump is fixedly connected to the center of the upper surface of the strip-shaped connecting plate. A first return pipe and a return intermediate pipe extending horizontally are respectively externally connected to the transfer pump. The lower end of the first return pipe passes through the second fuel tank and extends to the lower part inside it.

[0020] As an optimized solution, an electromagnetic flowmeter is fixed in the middle section of the first return pipe.

[0021] As an optimized solution, a second return pipe is fixedly connected to the center of the upper surface of the first fuel tank. The lower end of the second return pipe passes through the first fuel tank and extends to the lower part inside it.

[0022] As an optimized solution, expansion bellows are respectively fixedly connected by flanges at the horizontal ports of the return intermediate pipe and the second return pipe.

[0023] As an optimized solution, two symmetrical fixed vertical plates are respectively fixedly connected to the upper surfaces of the second fuel tank and the strip-shaped connecting plate. A movable clamping plate is telescopically arranged on the side wall of each fixed vertical plate. The end of the expansion bellows is fixedly connected and communicated to the movable clamping plate. A sealing ring is respectively fixed on the inner side wall of each movable clamping plate.

[0024] As an optimized solution, a radar level gauge is fixed on one side of the upper surface of the second fuel tank. The lower probe of the radar level gauge extends into the second fuel tank.

[0025] As an optimized solution, an oil inlet transfer pump is arranged on one side of the upper surface of the integrated test bench. The oil inlet transfer pump is externally connected to an oil inlet pipe. The end of the oil inlet pipe passes through the side wall of the first fuel tank and extends into it.

[0026] As an optimized solution, an oil outlet transfer pump is arranged on the other side of the upper surface of the integrated test bench. The oil outlet transfer pump is externally connected to an oil outlet pipe. The end of the oil outlet pipe passes through the side wall of the second fuel tank and extends into it.

[0027] As an optimized solution, both the horizontal test joint and the vertical test joint are three-way joints.

[0028] As an optimized solution, one end of the strip-shaped connecting plate is fixedly connected to the lateral side wall of the first oil storage tank, and the other end of the strip-shaped connecting plate is fixedly connected to the lateral side wall of the second oil storage tank.

[0029] As an optimized solution, a telescopic storage opening is formed on the longitudinal end surface of the integrated test bench near the horizontal test joint. The auxiliary installation component includes an L-shaped mounting plate, and the L-shaped mounting plate is telescopically clamped in the telescopic storage opening.

[0030] As an optimized solution, an electric control telescopic cylinder is fixedly connected to the inner end surface of the telescopic storage opening, and the end of the electric control telescopic cylinder is fixedly connected to the side end surface of the L-shaped mounting plate.

[0031] As an optimized solution, a screwing drive motor is fixedly connected to the longitudinal outer wall of the L-shaped mounting plate. The end of the output shaft of the screwing drive motor passes through the L-shaped mounting plate and is fixedly connected with a clamping chuck. The clamping chuck includes four circumferentially evenly distributed telescopic clamping jaws.

[0032] As an optimized solution, two symmetrical hinge mounting seats are fixedly connected to the longitudinal end surface of the integrated test bench near the horizontal test joint. A swing base is arranged between the two hinge mounting seats. A swing drive motor is fixedly connected to the lateral outer wall of one of the hinge mounting seats. The end of the output shaft of the swing drive motor passes through the hinge mounting seat and is fixedly connected to the side end surface of the swing base.

[0033] As an optimized solution, an instrument fixing seat is telescopically arranged on the longitudinal end surface of the swing base. Two symmetrical side clamping plates are telescopically arranged on the instrument fixing seat, and the side clamping plates are driven by telescopic cylinders.

[0034] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the coordinated cooperation of the pipeline simulation component, the comprehensive test component and the auxiliary installation component, the present invention realizes the efficient and accurate testing of liquid level, flow rate, pressure and temperature instruments. This system supports the testing requirements of various media, significantly improving the flexibility and reliability of testing. The entire testing process is highly automated, effectively avoiding the problems of low testing efficiency and increased errors caused by excessive manual intervention.

[0035] The pipeline simulation component set in the present invention is used to simulate the operating environment of long-distance oil and gas pipelines, and improve the accuracy of instrument testing by restoring the real working conditions. By controlling the opening and closing of different reversing valves, this component can form multiple closed loops to meet diverse testing requirements. Specifically, the pipeline simulation component includes a first oil storage tank and a second oil storage tank symmetrically arranged, which are connected by an elbow pipe, a shunt pipe, a conveying intermediate pipe and a return pipe. After the test medium (such as crude oil, refined oil, etc.) is injected into the simulated pipeline, it flows in a specific loop directionally, thus simulating the real state of oil and gas transportation. In addition, by starting the oil discharge delivery pump and the oil inlet delivery pump, the rapid replacement of the test medium can be realized, further expanding the applicable scope and flexibility of the test.

[0036] The integrated test component set in the present invention adopts an integrated design, integrating the test functions of pressure instruments, temperature instruments, liquid level instruments and metering instruments. This component not only supports the independent testing of a single instrument, but also can conduct linkage testing of multiple instruments under comprehensive transportation conditions. In addition, the integrated test component is equipped with devices such as a radar liquid level gauge, an electromagnetic flowmeter, a pressure regulating valve and a temperature transmitter, which can realize real-time comparison of data during the testing process to ensure the accuracy and reliability of the test results. This integrated design not only improves the testing efficiency, but also enhances the versatility and adaptability of the system.

[0037] The auxiliary installation component set in the present invention has clamping and screwing functions, and can be used to quickly clamp and position various instruments during the testing process, and significantly improve the testing efficiency through the functions of quick installation and disassembly. Specifically, the auxiliary installation component includes an L-shaped installation plate telescopically installed on the integrated test bench, and a rotatable clamping chuck is arranged on the L-shaped installation plate. The clamping chuck can clamp the end of the pressure regulating valve or the temperature transmitter, and screw it onto the horizontal test joint through rotational feeding to achieve quick installation. In addition, the auxiliary installation component is also equipped with a swingable instrument fixing seat, and a telescopic side clamping plate is arranged on the instrument fixing seat, which can clamp the liquid level gauge and install it on the vertical test joint through swinging for subsequent testing. This design not only simplifies the operation process, but also improves the convenience and efficiency of the test.

[0038] In summary, through the organic combination of the pipeline simulation component, the integrated test component and the auxiliary installation component, the present invention realizes the high efficiency, precision and automation of instrument testing. The pipeline simulation component restores the real working conditions, the integrated test component provides multi-functional integrated testing capabilities, and the auxiliary installation component significantly improves the convenience of the test operation. The overall design not only meets diverse testing requirements, but also greatly reduces the error risk caused by manual intervention, providing reliable technical support for the accurate testing of long-distance oil and gas pipeline instruments. Description of the Drawings

[0039] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0040] Figure 1 It is an external overall schematic diagram of the present invention in the front view direction; Figure 2 It is an external overall schematic diagram of the present invention in the top view direction; Figure 3 It is a schematic cross-sectional view of the internal structure of the present invention in the front view direction; Figure 4 It is a schematic cross-sectional view of the internal structure of the present invention in the top view direction; Figure 5 It is a schematic cross-sectional view of the internal structure of the auxiliary installation component in the present invention in the side view direction; Figure 6 It is a partial semi-sectional schematic diagram of the pressure regulation path and related components in the present invention in the side view direction; Figure 7 It is a partial semi-sectional schematic diagram of the temperature test path and related components in the present invention in the side view direction.

[0041] In the figure: 1 - integrated test bench, 2 - first oil storage tank, 3 - second oil storage tank, 4 - oil inlet transfer pump, 5 - oil inlet pipe, 6 - oil discharge transfer pump, 7 - oil discharge pipe, 8 - first elbow pipe, 9 - second elbow pipe, 10 - third elbow pipe, 11 - fourth elbow pipe, 12 - three-way vertical pipe, 13 - three-way longitudinal pipe, 14 - reversing valve, 15 - first shunt pipe, 16 - second shunt pipe, 17 - transfer intermediate pipe, 18 - horizontal test joint, 19 - vertical test joint, 20 - pressure regulating valve, 21 - temperature transmitter, 22 - strip-shaped connecting plate, 23 - transfer intermediate pump, 24 - first return pipe, 25 - return intermediate pipe, 26 - electromagnetic flowmeter, 27 - second return pipe, 28 - radar level gauge, 29 - telescopic bellows, 30 - fixed vertical plate, 31 - movable clamping plate, 32 - sealing ring, 33 - telescopic storage port, 34 - L-shaped mounting plate, 35 - electric control telescopic cylinder, 36 - screwing drive motor, 37 - clamping chuck, 38 - hinged mounting seat, 39 - swinging base, 40 - swinging drive motor, 41 - instrument fixing seat, 42 - side clamping plate. Specific Embodiments

[0042] The following will describe in detail the embodiments of the technical solutions of the present invention in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0043] As Figures 1 to 7 shown, the long-distance oil pipeline network instrument automatic testing device includes a horizontally arranged integrated test bench 1, and a pipeline simulation component, a comprehensive test component and an auxiliary installation component are respectively arranged on the integrated test bench 1.

[0044] The pipeline simulation component includes a first storage oil tank 2 and a second storage oil tank 3. Both the first storage oil tank 2 and the second storage oil tank 3 are vertically arranged square boxes, and the first storage oil tank 2 and the second storage oil tank 3 are respectively arranged on both sides of the upper surface of the integrated test bench 1.

[0045] An oil inlet transfer pump 4 is arranged on one side of the upper surface of the integrated test bench 1. The oil inlet transfer pump 4 is externally connected to an oil inlet pipe 5, and the end of the oil inlet pipe 5 passes through the side wall of the first storage oil tank 2 and extends into its interior.

[0046] An oil discharge transfer pump 6 is arranged on the other side of the upper surface of the integrated test bench 1. The oil discharge transfer pump 6 is externally connected to an oil discharge pipe 7, and the end of the oil discharge pipe 7 passes through the side wall of the second storage oil tank 3 and extends into its interior.

[0047] A first elbow pipe 8 and a second elbow pipe 9 are respectively externally connected to the two longitudinal end faces of the first storage oil tank 2, and a third elbow pipe 10 and a fourth elbow pipe 11 are respectively externally connected to the two longitudinal end faces of the second storage oil tank 3. Among them, the first elbow pipe 8 and the third elbow pipe 10 are arranged horizontally opposite to each other, and the second elbow pipe 9 and the fourth elbow pipe 11 are arranged horizontally opposite to each other.

[0048] Three-way vertical pipes 12 are respectively fixedly connected to the ends of the first elbow pipe 8 and the third elbow pipe 10, and three-way longitudinal pipes 13 are respectively fixedly connected to the ends of the second elbow pipe 9 and the fourth elbow pipe 11. A reversing valve 14 is arranged in each of the three-way longitudinal pipe 13 and the three-way vertical pipe 12.

[0049] A first shunt pipe 15 extending longitudinally is arranged between the two three-way vertical pipes 12, and a second shunt pipe 16 is arranged between the two three-way longitudinal pipes 13.

[0050] Two conveying intermediate pipes 17 are respectively fixedly arranged between the horizontally opposite three-way vertical pipe 12 and three-way longitudinal pipe 13. A horizontal test joint 18 is fixed in the middle section of one of the conveying intermediate pipes 17, and a vertical test joint 19 is fixed in the middle section of the other conveying intermediate pipe 17.

[0051] Both the horizontal test joint 18 and the vertical test joint 19 are three-way joints.

[0052] The comprehensive test component includes a pressure regulating valve 20 and a temperature transmitter 21. The pressure regulating valve 20 is fixedly installed on the upper part of the middle section of the first shunt pipe 15, and the temperature transmitter 21 is fixedly installed on the upper part of the middle section of the second shunt pipe 16.

[0053] A horizontally extending strip-shaped connecting plate 22 is provided between the first storage tank 2 and the second storage tank 3. One end of the strip-shaped connecting plate 22 is fixedly connected to the horizontal side wall of the first storage tank 2, and the other end of the strip-shaped connecting plate 22 is fixedly connected to the horizontal side wall of the second storage tank 3.

[0054] A transfer pump 23 is fixedly connected to the center of the upper surface of the strip-shaped connecting plate 22. A horizontally extending first return pipe 24 and a return intermediate pipe 25 are respectively externally connected to the transfer pump 23. The lower end of the first return pipe 24 passes through the second storage tank 3 and extends to the lower part inside it.

[0055] An electromagnetic flowmeter 26 is fixed in the middle section of the first return pipe 24.

[0056] A second return pipe 27 is fixedly connected to the center of the upper surface of the first storage tank 2. The lower end of the second return pipe 27 passes through the first storage tank 2 and extends to the lower part inside it.

[0057] A radar level gauge 28 is fixed on one side of the upper surface of the second storage tank 3. The lower probe of the radar level gauge 28 extends into the second storage tank 3.

[0058] Expansion bellows 29 are respectively fixedly connected to the horizontal ports of the return intermediate pipe 25 and the second return pipe 27 through flanges.

[0059] Two symmetric fixed vertical plates 30 are respectively fixedly connected to the upper surfaces of the second storage tank 3 and the strip-shaped connecting plate 22. A movable clamping plate 31 is telescopically arranged on the side wall of each fixed vertical plate 30. The end of the expansion bellows 29 is fixedly connected and communicated to the movable clamping plate 31. A sealing ring 32 is respectively fixed on the inner side wall of each movable clamping plate 31.

[0060] An expansion storage opening 33 is formed on the longitudinal end surface of the integrated test bench 1 close to the horizontal test joint 18. The auxiliary installation component includes an L-shaped mounting plate 34, and the L-shaped mounting plate 34 is telescopically clamped in the expansion storage opening 33.

[0061] An electric control telescopic cylinder 35 is fixedly connected to the inner end surface of the expansion storage opening 33, and the end of the electric control telescopic cylinder 35 is fixedly connected to the side end surface of the L-shaped mounting plate 34.

[0062] A screwing drive motor 36 is fixedly connected to the longitudinal outer wall of the L-shaped mounting plate 34. The end of the output shaft of the screwing drive motor 36 passes through the L-shaped mounting plate 34 and is fixedly connected with a clamping chuck 37. The clamping chuck 37 includes four circumferentially evenly distributed telescopic clamping jaws.

[0063] On the longitudinal end face of the integrated test bench 1 near one side of the horizontal test joint 18, two symmetric hinge mounting seats 38 are fixedly connected. A swing base 39 is arranged between the two hinge mounting seats 38. The swing base 39 and the hinge mounting seats 38 are connected by a rotating shaft. On the transverse outer wall of one of the hinge mounting seats 38, a swing drive motor 40 is fixedly connected. The end of the output shaft of the swing drive motor 40 passes through the hinge mounting seat 38 and is fixedly connected to the side end face of the swing base 39.

[0064] On the longitudinal end face of the swing base 39, an instrument fixing seat 41 is telescopically arranged. On the instrument fixing seat 41, two symmetric side clamping plates 42 are telescopically arranged. The side clamping plates 42 are driven by telescopic cylinders.

[0065] When the present invention is in use: First, start the oil inlet delivery pump 4, and inject the test medium (the test medium includes but is not limited to crude oil, refined oil or simulated fluid) into the first storage tank 2 through the oil inlet pipe 5 to prepare for subsequent tests. During the liquid level instrument test, clamp the float liquid level gauge between the two side clamping plates 42, start the swing drive motor 40, and the swing drive motor 40 drives the swing base 39 to swing by 90°, so that the horizontally clamped float liquid level gauge swings up to a vertical state, and the float liquid level gauge is butted and installed on the vertical test joint 19 by controlling the up and down movement of the instrument fixing seat 41; by controlling the opening and closing of each reversing valve 14, the first elbow pipe 8, the conveying intermediate pipe 17 and the third elbow pipe 10 are kept connected, so as to form a closed loop for testing the accuracy of the liquid level gauge between the first storage tank 2 and the second storage tank 3; turn on the radar liquid level gauge 28 to measure the liquid level of the medium in the second storage tank 3, and compare the measured data with the measurement result of the float liquid level gauge, so as to evaluate the measurement accuracy of the float liquid level gauge. During the flow meter test, place the flow meter to be tested flat on the strip connecting plate 22, clamp and position the flow meter by controlling the telescopic movement of the moving clamping plate 31, and seal it with the sealing ring 32. Start the transfer pump 23, and the transfer pump 23 transfers the medium in the second storage tank 3 back to the first storage tank 2. During the transfer process, use the electromagnetic flow meter 26 to measure the flow rate of the medium flowing through the first return pipe 24, and compare the obtained data with the flow meter to be tested as a standard to obtain its measurement accuracy. Then the medium flows back to the first storage tank 2 through the second return pipe 27 to complete the cycle. When testing a pressure gauge or a temperature gauge, install the pressure transmitter or temperature sensor to be tested onto the clamping chuck 37, start the screwing drive motor 36, and screw the gauge thread onto the horizontal test joint 18; open the reversing valve 14 to form a continuous test loop among the first elbow pipe 8, the first shunt pipe 15, the conveying intermediate pipe 17, the second shunt pipe 16, and the third elbow pipe 10. When the medium flows through the first shunt pipe 15 and the second shunt pipe 16, the pressure adjustment measurement and the temperature measurement are respectively completed, and the parameters are compared with the gauge installed on the horizontal test joint 18, so as to obtain the measurement accuracy deviation of the gauge; by controlling the switch of the reversing valve 14, different communication branches are formed between the first oil storage tank 2 and the second oil storage tank 3, and the pressure gauge or the temperature gauge can be tested separately; After the single-group test of the gauge is completed, the oil discharge conveying pump 6 can be started to extract the test medium via the oil discharge pipe 7, and then inject the new medium into the first oil storage tank 2 via the oil inlet conveying pump 4, so as to realize the replacement of the test medium, and thus test the influence of different media on the accuracy of the gauge.

[0066] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. Long-distance oil and gas pipeline network instrument automatic test device, characterized by: It comprises a horizontally arranged integrated test bench, on which a pipeline simulation component, a comprehensive test component and an auxiliary installation component are respectively arranged; The pipeline simulation component comprises a first oil storage tank and a second oil storage tank fixedly connected to both sides of the upper surface of the integrated test bench, the first oil storage tank is externally connected to the first elbow pipe and the second elbow pipe on the two longitudinal end surfaces respectively, and the second oil storage tank is externally connected to the third elbow pipe and the fourth elbow pipe on the two longitudinal end surfaces respectively; The ends of the first elbow pipe and the third elbow pipe are respectively fixedly connected with three-way vertical pipes, and the ends of the second elbow pipe and the fourth elbow pipe are respectively fixedly connected with three-way longitudinal pipes, and the three-way longitudinal pipe and the three-way vertical pipe are both provided with reversing valves; A first shunt pipe extending longitudinally is provided between the two three-way vertical pipes, and a second shunt pipe extending longitudinally is provided between the two three-way vertical pipes; Two intermediate delivery pipes are respectively fixed between the three-way vertical pipe and the three-way longitudinal pipe which are opposite to each other in the transverse direction, wherein a horizontal test joint is fixed on one of the intermediate delivery pipes, and a vertical test joint is fixed on the other intermediate delivery pipe; The comprehensive test assembly includes a pressure regulating valve and a temperature transmitter, wherein the pressure regulating valve is fixedly installed at the upper middle section of the first shunt pipe, and the temperature transmitter is fixedly installed at the upper middle section of the second shunt pipe; A transversely extending strip connecting plate is provided between the first oil storage tank and the second oil storage tank, a transfer pump is fixedly connected to the center of the upper surface of the strip connecting plate, and the transfer pump is externally connected to a transversely extending first return pipe and a return intermediate pipe, respectively, and the lower end of the first return pipe passes through the second oil storage tank and extends to the lower part of the second oil storage tank; An electromagnetic flowmeter is fixed to the middle section of the first reflux pipe.

2. The long-distance oil and gas pipeline network instrument automatic test device according to claim 1 is characterized by: A second return pipe is fixedly connected to the center of the upper surface of the first oil storage tank, and the lower end of the second return pipe passes through the first oil storage tank and extends to the lower part of the first oil storage tank.

3. The long-distance oil and gas pipeline network instrument automatic test device according to claim 2 is characterized by: The lateral ports of the intermediate return pipe and the second return pipe are respectively fixedly connected with a telescopic bellows via flanges; Two symmetrical fixed vertical plates are fixedly connected to the upper surfaces of the second oil storage tank and the strip connecting plate, respectively. A movable clamp is telescopically provided on the side wall of each of the fixed vertical plates. The end of the telescopic bellows is fixedly connected to the movable clamp, and a sealing ring is fixed on the inner side wall of each of the movable clamps.

4. The long-distance oil and gas pipeline network instrument automatic test device according to claim 1 is characterized by: A radar level gauge is fixed to one side of the upper surface of the second oil storage tank, and a lower end probe of the radar level gauge extends into the interior of the second oil storage tank.

5. The long-distance oil and gas pipeline network instrument automatic test device according to claim 1 is characterized by: An oil feed pump is provided on one side of the upper surface of the integrated test bench, the oil feed pump is externally connected to an oil feed pipe, and the end of the oil feed pipe passes through the side wall of the first oil storage tank and extends into the interior thereof; An oil discharge delivery pump is provided on the other side of the upper surface of the integrated test bench. The oil discharge delivery pump is externally connected to an oil discharge pipe. The end of the oil discharge pipe passes through the side wall of the second oil storage tank and extends into the interior thereof.

6. The long-distance oil and gas pipeline network instrument automatic test device according to claim 1 is characterized by: The horizontal test joint and the vertical test joint are both three-way joints.

7. The long-distance oil and gas pipeline network instrument automatic test device according to claim 1 is characterized by: One end of the strip connecting plate is fixedly connected to the transverse side wall of the first oil storage tank, and the other end of the strip connecting plate is fixedly connected to the transverse side wall of the second oil storage tank.

8. The long-distance oil and gas pipeline network instrument automatic test device according to claim 1 is characterized by: A telescopic receiving opening is provided on a longitudinal end surface of the integrated test bench close to the horizontal test joint, and the auxiliary mounting assembly comprises an L-shaped mounting plate, and the L-shaped mounting plate is telescopically mounted in the telescopic receiving opening; An electric-controlled telescopic cylinder is fixedly connected to the inner end surface of the telescopic storage opening, and the end of the electric-controlled telescopic cylinder is fixedly connected to the side end surface of the L-shaped mounting plate; A screwing drive motor is fixedly connected to the longitudinal outer wall of the L-shaped mounting plate. The end of the output shaft of the screwing drive motor passes through the L-shaped mounting plate and is fixedly connected to a clamping chuck. The clamping chuck includes four circumferentially evenly distributed telescopic clamping claws.

9. The long-distance oil and gas pipeline network instrument automatic test device according to claim 1 is characterized by: Two symmetrical hinged mounting seats are fixedly connected to the longitudinal end surface of the integrated test bench on one side close to the horizontal test joint, a swing base is provided between the two hinged mounting seats, a swing drive motor is fixedly connected to the transverse outer wall of one of the hinged mounting seats, and the output shaft end of the swing drive motor passes through the hinged mounting seat and is fixedly connected to the side end surface of the swing base; An instrument fixing seat is telescopically provided on the longitudinal end surface of the swing base, and two symmetrical side clamping plates are telescopically provided on the instrument fixing seat, and the side clamping plates are driven by a telescopic cylinder.

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