Pipeline docking and sealing process

Abstract

The present invention relates to the technical field of pipeline sealing, and particularly to a pipeline docking and sealing process, including step S1, determining two pipe fittings to be docked and an intermediate pipe, and inserting them; step S2, rotating the intermediate pipe and squeezing the two pipe fittings to be docked towards the intermediate pipe; step S3, detecting the real-time consumption length, real-time operation duration and real-time temperature at the docking part in the pipeline docking device for determination; step S4, detecting the sealing performance of the two pipe fittings after docking. By monitoring the real-time consumption length, real-time operation duration and real-time temperature at the docking part of the two pipe fittings to be docked and the intermediate pipe fitting in the pipeline docking and sealing process, the present invention accurately and efficiently monitors the state of pipeline docking and sealing in real time, ensures accurate and rapid docking during pipeline docking and sealing, avoids damage to the pipe fittings caused by too high temperature or too large extrusion force, and can also detect the damage in time if it occurs, ensuring the safety of subsequent use.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline sealing, and particularly relates to a pipeline butt joint sealing process. Background Art

[0002] A pipeline is a pipe connecting pumps, valves or control systems, mainly used for conveying liquids, gases or solids ground into powders, including various pipes and wires and cables. Pipeline sealing is a crucial link in a pipeline system, and the quality of its design specifications is directly related to the stability and safety of the pipeline system. However, after the current pipeline butt joint is sealed, its service life is not long, and the conveyed liquids, gases, etc. are likely to damage it, causing leakage at the sealed part.

[0003] Chinese Patent Publication No.: CN101463924B discloses a large-diameter pipe jacking butt joint process, the technical point of which is to complete the large-diameter pipe jacking butt joint by improving the soil body in the butt joint area to transform the large-diameter pipe jacking tool pipe and the air pressure plugging construction in the butt joint area. Thus, it can be seen that in the existing pipeline butt joint, there is a lack of real-time monitoring of the pipeline butt joint sealing process to determine how to adjust, and there is also a lack of a specific scheme design for improving the service life after the pipeline sealing butt joint. The pipeline butt joint sealing is still inaccurate and inefficient. Summary of the Invention

[0004] Therefore, the present invention provides a pipeline butt joint sealing process to overcome the problems of inaccuracy and inefficiency caused by the lack of real-time monitoring in the pipeline butt joint sealing process in the prior art.

[0005] To achieve the above object, the present invention provides a pipeline butt joint sealing process, including:

[0006] Step S1: Determine two pipe fittings to be butted, select an intermediate pipe according to the sizes of the two pipe fittings to be butted, cut insertion slots at both ends of the intermediate pipe, and cut insertion platforms corresponding to the insertion slots of the intermediate pipe on the inner or outer sides of the two pipe fittings to be butted, and respectively insert the two pipe fittings to be butted into both ends of the intermediate pipe;

[0007] Step S2: Fix the intermediate pipe by a pipeline butt joint device and drive it to rotate, and respectively fix the two pipe fittings to be butted by the pipeline butt joint device, and extrude them towards the intermediate pipe;

[0008] Step S3: Detect the real-time consumption length in the pipeline butt joint device, and determine whether to obtain the real-time running duration for determination or obtain the real-time temperature at the butt joint of the two pipe fittings to be butted and the intermediate pipe fitting according to the standard consumption length range, so as to determine the adjustment of the running state of the pipeline butt joint device;

[0009] Step S4, detect the sealing performance of the two pipe fittings after docking is completed to determine whether the docking sealing standard is met. If the standard is met, the pipeline docking sealing is completed. If the standard is not met, cut off the intermediate pipe and repair or cut the docking joints of the two pipe fittings to be docked. Re-select the intermediate pipe and its dimension length according to the actual usage of the pipeline docking, and re-dock through the pipeline docking device.

[0010] Further, in step S3, a standard consumption length range is set, including a first standard consumption length and a second standard consumption length. The first standard consumption length is less than the second standard consumption length. Record the real-time contraction distance of the hydraulic telescopic shaft as the real-time consumption length of the pipeline docking, and judge the real-time consumption length according to the first standard consumption length and the second standard consumption length.

[0011] When the real-time consumption length of the pipeline docking is lower than the first standard consumption length, judge the real-time running duration of the pipeline docking device to determine whether to adjust the running state of the pipeline docking device.

[0012] When the real-time consumption length of the pipeline docking is between the first standard consumption length and the second standard consumption length, judge the real-time temperature of the pipeline docking to determine whether to adjust the running state of the pipeline docking device.

[0013] When the real-time consumption length of the pipeline docking is higher than the second standard consumption length, it is determined that there are deformation or loss defects at the docking joint of the intermediate pipe. Cut off the intermediate pipe, repair or cut the docking joints of the two pipe fittings to be docked, re-select the intermediate pipe and its dimension length according to the actual usage of the pipeline docking, and re-dock through the pipeline docking device.

[0014] Among them, the real-time temperature of the pipeline docking is the average value of the temperatures at the joints of the intermediate pipe and the two pipe fittings to be docked detected by the temperature sensor.

[0015] Further, in step S3, a standard temperature is set. Under the first preset condition, judge the real-time temperature at the docking joints of the two pipe fittings to be docked and the intermediate pipe fitting according to the standard temperature.

[0016] When the real-time temperature is less than the standard temperature, increase the initial rotation speed of the pipeline docking device to Vc1, Vc1 = Vc×[(Tb - Ts) / Tb].

[0017] When the real-time temperature is greater than or equal to the standard temperature, stop the rotation of the pipeline docking device.

[0018] Among them, the first preset condition is that the real-time consumption length of the pipeline docking is between the first standard consumption length and the second standard consumption length;

[0019] Vc1 is the rotational speed of the pipeline docking device after increase under the first preset condition, Vc is the initial rotational speed, Tb is the standard temperature, and Ts is the real-time temperature.

[0020] Further, in step S3, after stopping the rotation of the pipeline docking device, keep the initial pressure of the two pipe fittings to be docked unchanged, and perform cooling. After cooling, grind and smooth the docking joints of the two pipe fittings to be docked with the intermediate pipe fitting.

[0021] Further, in step S3, there is a standard operation duration of the pipeline docking device. When the pipeline docking device is working, record the real-time operation duration of the pipeline docking device. When the real-time consumption length of the pipeline docking is lower than the first standard consumption length, judge the real-time operation duration according to the standard operation duration.

[0022] When the real-time operation duration is less than the standard operation duration, keep the current operation state of the pipeline docking device;

[0023] When the real-time operation duration is greater than or equal to the standard operation duration, determine whether to adjust the operation state of the pipeline docking device according to the real-time temperature of the pipeline docking.

[0024] Further, in step S3, under the second preset condition, judge the real-time temperature Ts according to the standard temperature Tb.

[0025] When the real-time temperature is less than the standard temperature, increase the initial rotational speed of the pipeline docking device to Vc2, Vc2 = Vc × [1 + 1 / 2 × (Tb - Ts) / Tb], and increase the initial pressure of the two pipe fittings to be docked to F1, F1 = Fc / [Mb / (Mb + Ms)]. When the real-time consumption length of the pipeline docking is greater than the first standard consumption length, stop the rotation of the pipeline docking device;

[0026] When the real-time temperature is greater than or equal to the standard temperature, increase the initial pressure of the two pipe fittings to be docked to F2, F2 = Fc / [Mb / (Mb + Ms)] × [(Ts + Tb) / Tb]. When the real-time consumption length of the pipeline docking is greater than the first standard consumption length, stop the rotation of the pipeline docking device;

[0027] Among them, the second preset condition is that the real-time consumption length of the pipeline docking is lower than the first standard consumption length and the real-time operation duration of the pipeline docking device is greater than or equal to the standard operation duration;

[0028] Vc2 is the rotational speed of the pipeline docking device after increase under the second preset condition, Vc is the initial rotational speed, Tb is the standard temperature, Ts is the real-time temperature, F1 is the increased pressure when the real-time temperature is lower than the standard temperature under the second preset condition, F2 is the increased pressure when the real-time temperature is greater than or equal to the standard temperature under the second preset condition, Fc is the initial pressure on the two pipe fittings to be docked, Mb is the standard operation duration of the pipeline docking device, and Ms is the real-time operation duration of the pipeline docking device.

[0029] Further, the length of the intermediate pipe is not less than the outer diameter of the two pipe fittings to be docked, and the thickness of the intermediate pipe is not less than the average thickness of the two pipe fittings to be docked.

[0030] Further, the insertion slots respectively cut at both ends of the intermediate pipe include a positive step pattern, a negative step pattern or an oblique cut pattern.

[0031] Further, the pipeline docking device includes a hydraulic telescopic shaft, a telescopic component, a clamping component, a motor, pipe fittings to be docked, an intermediate pipe, a rotating component, a temperature sensor, and a support frame;

[0032] The telescopic component and the clamping component are used to clamp the two pipe fittings to be docked and apply pressure to the two pipe fittings to be docked;

[0033] Both sides of the hydraulic telescopic shaft are respectively connected to the telescopic component, used to connect the two pipe fittings to be docked and drive the telescopic component to contract through the hydraulic telescopic shaft, so that the two pipe fittings to be docked are extruded toward the intermediate pipe side;

[0034] The rotating component is arranged at the position of the intermediate pipe on the support frame, used to control the rotation of the intermediate pipe;

[0035] The temperature sensor is arranged at the position of the docking joint between the intermediate pipe and the two pipe fittings to be docked on the support frame, used to monitor the real-time temperature at the docking joint.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows: when docking and sealing pipelines, by monitoring the real-time consumed length, real-time operation duration in the pipeline docking device, and the real-time temperature at the docking joint between the two pipe fittings to be docked and the intermediate pipe fitting, the state of pipeline docking and sealing is accurately and efficiently monitored in real time, ensuring accurate and rapid docking during pipeline docking and sealing. At the same time, it avoids damage to the pipe fittings caused by too high temperature or too large extrusion pressure. If damage occurs, it can also be detected in time, cut off the damaged position, reselect the intermediate pipe fitting for docking, and avoid leakage or greater accidents caused by using damaged pipe fittings, ensuring the safety of subsequent use.

[0037] Furthermore, by setting a standard consumption length range to determine the real-time consumption length of pipeline docking, when the real-time consumption length of pipeline docking exceeds the standard consumption length range, deformation or loss defects exist at the docking joint of the intermediate pipe. At this time, the intermediate pipe is cut and removed, and the docking joints of the two pipe fittings to be docked are repaired or cut. According to the actual use of pipeline docking, the intermediate pipe is reselected to ensure that when redocking, each interface is flat and can meet the length requirement for docking sealing. When the real-time consumption length of pipeline docking is between the first standard consumption length and the second standard consumption length, the real-time temperature of pipeline docking is further determined. When the real-time consumption length of pipeline docking is lower than the first standard consumption length, the real-time running duration of the pipeline docking equipment is further determined. By making specific analysis and determination in different situations, how to adjust the running state of the pipeline docking equipment is further determined, ensuring the accuracy of the running state of the pipeline docking equipment and making targeted adjustments, so as to make the pipeline docking seal more accurate and efficient.

[0038] Furthermore, when the real-time consumption length of pipeline docking is between the first standard consumption length and the second standard consumption length, by determining the real-time temperature, when the real-time temperature is lower than the standard temperature, the initial rotation speed of the pipeline docking equipment can be increased, thereby increasing the heat generated by friction, which is beneficial to improving the efficiency of pipeline docking seal. When the real-time temperature has exceeded the standard temperature, the rotation of the pipeline docking equipment is stopped to prevent it from generating heat and avoid continuous damage to the pipe fittings caused by high temperature.

[0039] In particular, when the real-time consumption length of pipeline docking is lower than the first standard consumption length, by determining the real-time running duration, when the real-time running duration has not reached the standard running duration, the rotation speed of the current pipeline docking equipment and the pressure applied to the two pipe fittings to be docked are maintained, and the rotation of the pipeline docking equipment is stopped when the real-time temperature is greater than or equal to the standard temperature. When the real-time running duration is greater than or equal to the standard running duration and at this time the real-time consumption length of pipeline docking is also lower than the first standard consumption length, it is necessary to obtain the real-time temperature of pipeline docking to determine whether the sealing docking is not completed due to insufficient temperature, ensuring that there is a corresponding adjustment method for each situation, thereby improving the accuracy and efficiency of pipeline docking seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a flowchart of the pipeline docking seal process according to an embodiment of the present invention;

[0041] Figure 2 is a schematic structural diagram of the pipeline docking equipment according to an embodiment of the present invention;

[0042] Figure 3 is a schematic diagram of the positive step pattern according to an embodiment of the present invention;

[0043] Figure 4 Schematic diagram of the bevel cutting pattern for the embodiment of the present invention. Detailed implementation manners

[0044] In order to make the objectives and advantages of the present invention more clear and understandable, the present invention will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] The preferred implementation manners of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0046] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0047] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0048] Please refer to Figure 1 As shown, it is a flowchart of the pipeline docking and sealing process for the embodiment of the present invention. This embodiment provides a pipeline docking and sealing process, including:

[0049] Step S1: Determine the two pipe fittings to be docked, select an intermediate pipe according to the sizes of the two pipe fittings to be docked, cut insertion slots at both ends of the intermediate pipe, and cut corresponding insertion platforms on the inner or outer sides of the two pipe fittings to be docked, and respectively insert the two pipe fittings to be docked into both ends of the intermediate pipe;

[0050] Step S2: Fix the intermediate pipe by a pipeline docking device and drive it to rotate, and respectively fix the two pipe fittings to be docked by the pipeline docking device, and extrude them towards the intermediate pipe;

[0051] Step S3: Detect the real-time consumption length in the pipeline docking device, and determine whether to obtain the real-time operation duration or the real-time temperature at the docking position of the two pipe fittings to be docked and the intermediate pipe fitting according to the standard consumption length range, so as to determine the adjustment of the operation state of the pipeline docking device;

[0052] Step S4: Detect the sealing performance of the two pipe fittings after docking to determine whether the sealing docking standard is met. If the standard is met, the pipeline docking seal is completed. If the standard is not met, the intermediate pipe is cut off, and the docking position of the two pipe fittings to be docked is repaired or cut. According to the actual use situation of the pipeline docking, the intermediate pipe and the size and length of the intermediate pipe are reselected, and the docking is carried out again through the pipeline docking device.

[0053] By monitoring the real-time consumption length, real-time operation duration and real-time temperature at the docking position of the two pipe fittings to be docked and the intermediate pipe fitting during the pipeline docking seal, the state of the pipeline docking seal can be accurately and efficiently monitored in real time, ensuring accurate and rapid docking during the pipeline docking seal. At the same time, it can avoid damage to the pipe fittings caused by too high temperature or too large extrusion pressure. If damage occurs, it can also be detected in time. The damaged position is cut off, and the intermediate pipe fitting is reselected for docking, avoiding leakage or greater accidents caused by using damaged pipe fittings, and ensuring the safety of subsequent use.

[0054] Specifically, in step S3, a standard consumption length range is set, including a first standard consumption length L1 and a second standard consumption length L2, where L1 < L2. When the pipeline docking device fixes the intermediate pipe and drives it to rotate, the real-time contraction distance of the hydraulic telescopic shaft is recorded as the real-time consumption length Ls of the pipeline docking, and the real-time consumption length Ls is determined according to the first standard consumption length L1 and the second standard consumption length L2.

[0055] When Ls < L1, it is determined that the real-time consumption length of the pipeline docking is lower than the first standard consumption length, and the real-time operation duration of the pipeline docking device will be determined to determine whether to adjust the operation state of the pipeline docking device;

[0056] When L1 ≤ Ls ≤ L2, it is determined that the real-time consumption length of the pipeline docking is between the first standard consumption length and the second standard consumption length, and the real-time temperature of the pipeline docking will be determined to determine whether to adjust the operation state of the pipeline docking device;

[0057] When Ls > L2, it is determined that the real-time consumption length of the pipeline docking is higher than the second standard consumption length, and it is determined that there are deformation or loss defects at the docking of the intermediate pipe. The intermediate pipe is cut off, and the docking parts of the two pipe fittings to be docked are repaired or cut. Then, the intermediate pipe and its dimension length are reselected according to the actual usage of the pipeline docking, and the docking is carried out again through the pipeline docking equipment;

[0058] Among them, the real-time temperature of the pipeline docking is the average value of the temperatures at the joints of the intermediate pipe and the two pipe fittings to be docked detected by the temperature sensor;

[0059] When the real-time consumption length of the pipeline docking is higher than the second standard consumption length, it will cause deformation or loss defects at the docking of the intermediate pipe. The intermediate pipe needs to be cut off, and the docking parts of the two pipe fittings to be docked are repaired or cut. When there are length requirements for the two pipe fittings to be docked, a longer intermediate pipe is selected to meet the length requirements of the two pipe fittings to be docked. If there are no length requirements for the two pipe fittings to be docked, the length of the original intermediate pipe can be selected. The length selection of the intermediate pipe is determined according to the actual usage.

[0060] In this embodiment, the standard consumption length range is affected by factors such as the lengths of the two pipe fittings to be docked, the length of the intermediate pipe, and the length required after the pipeline docking is sealed. It should be specifically set in combination with the actual situation. The first standard consumption length is set to 40 cm, and the second standard consumption length is set to 60 cm. In fact, it should be set according to the requirements of the actual pipeline, and the standard consumption length range is set according to the feedback of the actual usage data results, which will not be elaborated here.

[0061] By setting the standard consumption length range, the real-time consumption length of the pipeline docking is judged. When the real-time consumption length of the pipeline docking exceeds the standard consumption length range, it will cause deformation or loss defects at the docking of the intermediate pipe. At this time, the intermediate pipe is cut off, and the docking parts of the two pipe fittings to be docked are repaired or cut. The intermediate pipe is reselected according to the actual usage of the pipeline docking to ensure that when redocking, each interface is flat and can meet the length requirement for docking and sealing. When the real-time consumption length of the pipeline docking is between the first standard consumption length and the second standard consumption length, the real-time temperature of the pipeline docking is further judged. When the real-time consumption length of the pipeline docking is lower than the first standard consumption length, the real-time running duration of the pipeline docking equipment is further judged. By making specific analysis and judgment in different situations, it is further determined how to adjust the running state of the pipeline docking equipment, which ensures the accuracy of the running state of the pipeline docking equipment and at the same time makes targeted adjustments, so that the pipeline docking and sealing are more accurate and efficient.

[0062] Specifically, in step S3, a standard temperature Tb is set, and the standard temperature is the melting point temperature of the pipe fitting material. If the materials of the two pipe fittings to be butt-jointed are different, the melting points of the pipe fitting materials are respectively detected, and the standard temperature is reset according to their melting points. The melting point temperature of the pipe fitting with the lower melting point is used as the standard temperature, and the current temperatures Ts1 and Ts2 at the two butt-joints of the two pipe fittings to be butt-jointed and the intermediate pipe fitting are obtained. If the materials of the two pipe fittings to be butt-jointed are the same, the real-time temperature Ts at the butt-joints of the two pipe fittings to be butt-jointed and the intermediate pipe fitting is the average value of the temperatures at the joints between the intermediate pipe and the two pipe fittings to be butt-jointed. If the materials of the two pipe fittings to be butt-jointed are different, the real-time temperature Ts at the butt-joints of the two pipe fittings to be butt-jointed and the intermediate pipe fitting is the current temperature of the pipe fitting with the lower melting point.

[0063] Under the first preset condition, the real-time temperature Ts is judged according to the standard temperature Tb.

[0064] When Ts < Tb, it is judged that the real-time temperature is lower than the standard temperature, and the initial rotation speed of the pipeline butt-jointing device is increased to Vc1, where Vc1 = Vc×[(Tb - Ts) / Tb];

[0065] When Ts ≥ Tb, it is judged that the real-time temperature is greater than or equal to the standard temperature, and the rotation of the pipeline butt-jointing device is stopped;

[0066] Among them, the first preset condition is that the real-time consumption length of the pipeline butt-jointing is between the first standard consumption length and the second standard consumption length;

[0067] Vc1 is the rotation speed of the pipeline butt-jointing device increased under the first preset condition, Vc is the initial rotation speed, Tb is the standard temperature, and Ts is the real-time temperature.

[0068] In this embodiment, the standard temperature is affected by factors such as the materials of the two butt-jointed pipe fittings and the material of the intermediate pipe. It should be specifically set according to the actual situation. In this embodiment, the materials of the two pipe fittings to be butt-jointed and the intermediate pipe are the same, which is a plastic-lined steel pipe, and its melting point is 490 degrees Celsius. It should be specifically set according to the actual materials of the pipe fittings, which will not be elaborated here.

[0069] Specifically, in step S3, after stopping the rotation of the pipeline butt-jointing device, the initial pressure on the two pipe fittings to be butt-jointed is kept unchanged for cooling. After cooling, the butt-joints of the two pipe fittings to be butt-jointed and the intermediate pipe fitting are cut and ground flat.

[0070] When the real-time consumption length of pipeline docking is between the first standard consumption length and the second standard consumption length, the real-time temperature is judged. When the real-time temperature is lower than the standard temperature, the initial rotation speed of the pipeline docking device can be increased, so as to increase the heat generated by friction, which is beneficial to improving the efficiency of pipeline docking and sealing. When the real-time temperature has exceeded the standard temperature, stop the rotation of the pipeline docking device to prevent it from generating heat continuously and avoid continuous damage to the pipe fittings caused by high temperature.

[0071] Specifically, in step S3, there is a standard operation duration Mb of the pipeline docking device. When the pipeline docking device is working, record the real-time operation duration Ms of the pipeline docking device. When the real-time consumption length of pipeline docking is lower than the first standard consumption length, judge the real-time operation duration according to the standard operation duration.

[0072] When Ms < Mb, it is judged that the real-time operation duration is less than the standard operation duration, and the current operation state of the pipeline docking device is maintained.

[0073] When Ms ≥ Mb, it is judged that the real-time operation duration is greater than or equal to the standard operation duration, and whether to adjust the operation state of the pipeline docking device is determined according to the real-time temperature of pipeline docking.

[0074] In this embodiment, the standard operation duration of the pipeline docking device is affected by factors such as the materials of the two pipe fittings to be docked, the material of the intermediate pipe, the sizes of the two pipe fittings to be docked, the size of the intermediate pipe, and the size required after pipeline docking and sealing. It should be set specifically according to the actual situation. In this embodiment, the standard operation duration of the pipeline docking device is set to 4 minutes, and it should be set specifically according to the actual materials and sizes of the pipe fittings.

[0075] By judging the real-time operation duration when the real-time consumption length of pipeline docking is lower than the first standard consumption length, when the real-time operation duration does not reach the standard operation duration, maintain the rotation speed of the current pipeline docking device and the pressure applied to the two pipe fittings to be docked, and stop the rotation of the pipeline docking device when the real-time temperature is greater than or equal to the standard temperature. When the real-time operation duration is greater than or equal to the standard operation duration and the real-time consumption length of pipeline docking is also lower than the first standard consumption length at this time, it is necessary to obtain the real-time temperature of pipeline docking to judge whether the sealing docking is not completed due to insufficient temperature, ensuring that there is a corresponding adjustment method for each situation, thereby improving the accuracy and efficiency of pipeline docking and sealing.

[0076] Specifically, in step S3, under the second preset condition, judge the real-time temperature Ts according to the standard temperature Tb.

[0077] When Ts < Tb, it is determined that the real-time temperature is lower than the standard temperature. The rotation speed of the pipeline docking device will be increased to Vc2, where Vc2 = Vc × [1 + 1 / 2 × (Tb - Ts) / Tb], and the initial pressure of the two pipe fittings to be docked will be increased to F1, where F1 = Fc / [Mb / (Mb + Ms)]. When the real-time consumption length of the pipeline docking is greater than the first standard consumption length, the rotation of the pipeline docking device will be stopped;

[0078] When Ts ≥ T2, it is determined that the real-time temperature is greater than or equal to the standard temperature. The initial pressure of the two pipe fittings to be docked will be increased to F2, where F2 = Fc / [Mb / (Mb + Ms)] × [(Ts + Tb) / Tb]. When the real-time consumption length of the pipeline docking is greater than the first standard consumption length, the rotation of the pipeline docking device will be stopped;

[0079] Among them, the second preset condition is that the real-time consumption length of the pipeline docking is lower than the first standard consumption length and the real-time operation duration of the pipeline docking device is greater than or equal to the standard operation duration;

[0080] Vc2 is the increased rotation speed of the pipeline docking device under the second preset condition, Vc is the initial rotation speed, Tb is the standard temperature, Ts is the real-time temperature, F1 is the increased pressure when the real-time temperature is lower than the standard temperature under the second preset condition, F2 is the increased pressure when the real-time temperature is greater than or equal to the standard temperature under the second preset condition, Fc is the initial pressure of the two pipe fittings to be docked, Mb is the standard operation duration of the pipeline docking device, and Ms is the real-time operation duration of the pipeline docking device.

[0081] Under the second preset condition, when the real-time temperature is lower than the standard temperature, by increasing the rotation speed of the pipeline docking device and the pressure of the two pipe fittings to be docked, the two pipe fittings to be docked are made to approach the intermediate pipe and heat up for sealed docking. If the real-time temperature exceeds the standard temperature, it means that the pressure of the two pipe fittings to be docked is not large enough. In this case, there is no need to increase the rotation speed to heat up, and only the pressure needs to be increased, which ensures the accuracy of the pipeline sealed docking, avoids unnecessary damage to the pipe fittings, and also improves the service life of the pipe fittings after sealed docking.

[0082] Specifically, the length of the intermediate pipe is not less than the outer diameter of the two pipe fittings to be docked, and the thickness of the intermediate pipe is not less than the average thickness of the two pipe fittings to be docked.

[0083] Specifically, the insertion slots cut out at both ends of the intermediate pipe include a positive step pattern (please refer to Figure 3 shown), a negative step pattern or an oblique cut pattern (please refer to Figure 4 shown).

[0084] Specifically, please refer to Figure 2As shown, the pipeline docking device includes a hydraulic telescopic shaft 1, a telescopic component 2, a clamping component 3, a motor 4, a pipe fitting 5 to be docked, an intermediate pipe 6, a rotating component 7, a temperature sensor 8, and a support frame 9;

[0085] The telescopic component 2 and the clamping component 3 are used to clamp the two pipe fittings to be docked and apply pressure to the two pipe fittings to be docked;

[0086] The two sides of the hydraulic telescopic shaft 1 are respectively connected to the telescopic component 2, which is used to connect the two pipe fittings to be docked and drive the telescopic component 2 to contract through the hydraulic telescopic shaft 1, so that the two pipe fittings to be docked are extruded toward the side of the intermediate pipe 6;

[0087] The rotating component 7 is arranged at the position of the intermediate pipe 6 on the support frame 9, and is used to control the rotation of the intermediate pipe 6;

[0088] The temperature sensor 8 is arranged at the docking position of the intermediate pipe 6 and the two pipe fittings to be docked on the support frame 9, and is used to monitor the real-time temperature at the docking position.

[0089] So far, the technical solution of the present invention has been described in combination with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0090] The above are only the preferred embodiments of the present invention and are not used to limit the present invention; for those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipeline docking and sealing process, characterized in that, including Step S1: Determine the two pipe fittings to be docked. Select an intermediate pipe based on the dimensions of the two pipe fittings to be docked. Cut insertion grooves at both ends of the intermediate pipe, and cut corresponding insertion platforms on the inner or outer sides of the two pipe fittings to be docked. Then insert the two pipe fittings to be docked into both ends of the intermediate pipe respectively; Step S2: Fix the intermediate pipe with a pipeline docking device and drive it to rotate. Fix the two pipe fittings to be docked with the pipeline docking device respectively, and extrude them towards the intermediate pipe; Step S3: Detect the real-time consumption length in the pipeline docking device. Determine whether to obtain the real-time operation duration for judgment or obtain the real-time temperature at the docking joint of the two pipe fittings to be docked and the intermediate pipe according to the standard consumption length range, so as to determine the adjustment of the operation state of the pipeline docking device; Step S4: Detect the sealing performance of the two docked pipe fittings to determine whether the docking sealing standard is met. If the standard is met, the pipeline docking sealing is completed. If the standard is not met, cut off the intermediate pipe, repair or cut the docking joint of the two pipe fittings to be docked, re-select the intermediate pipe and its size and length according to the actual use of the pipeline docking, and re-dock through the pipeline docking device; In step S3, under the second preset condition, judge the real-time temperature Ts according to the standard temperature Tb; When Ts < Tb, it is determined that the real-time temperature is lower than the standard temperature. Increase the rotation speed of the pipeline docking device to Vc2, where Vc2 = Vc×[1 + 1 / 2×(Tb - Ts) / Tb], and increase the initial pressure on the two pipe fittings to be docked to F1, where F1 = Fc / [Mb / (Mb + Ms)]. When the real-time consumption length of the pipeline docking is greater than the first standard consumption length, stop the rotation of the pipeline docking device; When Ts ≥ T2, it is determined that the real-time temperature is greater than or equal to the standard temperature. Increase the initial pressure on the two pipe fittings to be docked to F2, where F2 = Fc / [Mb / (Mb + Ms)]×[(Ts + Tb) / Tb]. When the real-time consumption length of the pipeline docking is greater than the first standard consumption length, stop the rotation of the pipeline docking device; Among them, the second preset condition is that the real-time consumption length of the pipeline docking is lower than the first standard consumption length and the real-time operation duration of the pipeline docking device is greater than or equal to the standard operation duration; Among them, Vc2 is the increased rotation speed of the pipeline docking device under the second preset condition, Vc is the initial rotation speed, Tb is the standard temperature, Ts is the real-time temperature, F1 is the increased pressure when the real-time temperature is lower than the standard temperature under the second preset condition, F2 is the increased pressure when the real-time temperature is greater than or equal to the standard temperature under the second preset condition, Fc is the initial pressure on the two pipe fittings to be docked, Mb is the standard operation duration of the pipeline docking device, and Ms is the real-time operation duration of the pipeline docking device.

2. The pipeline docking and sealing process according to claim 1, characterized in that In step S3, a standard consumption length range is set, including a first standard consumption length and a second standard consumption length, where the first standard consumption length is less than the second standard consumption length. The real-time contraction distance of the hydraulic telescopic shaft is recorded as the real-time consumption length of the pipeline docking, and the real-time consumption length is judged according to the first standard consumption length and the second standard consumption length. When the real-time consumption length of the pipeline docking is lower than the first standard consumption length, the real-time running duration of the pipeline docking device is judged to determine whether to adjust the running state of the pipeline docking device. When the real-time consumption length of the pipeline docking is between the first standard consumption length and the second standard consumption length, the real-time temperature of the pipeline docking is judged to determine whether to adjust the running state of the pipeline docking device. When the real-time consumption length of the pipeline docking is higher than the second standard consumption length, the intermediate pipe is cut off, and the docking joints of the two pipe fittings to be docked are repaired or cut. The intermediate pipe and the size and length of the intermediate pipe are reselected according to the actual use of the pipeline docking, and the pipeline docking is redone through the pipeline docking device. Among them, the real-time temperature of the pipeline docking is the average value of the temperatures at the joints between the intermediate pipe and the two pipe fittings to be docked detected by the temperature sensor.

3. The pipeline butt joint sealing process according to claim 2, characterized in that, In step S3, a standard temperature is set, and the real-time temperature at the docking joints of the two pipe fittings to be docked and the intermediate pipe is judged according to the standard temperature under the first preset condition. When the real-time temperature is less than the standard temperature, the initial rotation speed of the pipeline docking device is increased to Vc1, and Vc1 = Vc×[(Tb - Ts) / Tb]. When the real-time temperature is greater than or equal to the standard temperature, the rotation of the pipeline docking device is stopped. Among them, the first preset condition is that the real-time consumption length of the pipeline docking is between the first standard consumption length and the second standard consumption length. Vc1 is the rotation speed of the pipeline docking device increased under the first preset condition, Vc is the initial rotation speed, Tb is the standard temperature, and Ts is the real-time temperature.

4. The pipeline butt joint sealing process according to claim 3, characterized in that, In step S3, after the rotation of the pipeline docking device is stopped, the initial pressure on the two pipe fittings to be docked is kept unchanged for cooling. After cooling, the docking joints of the two pipe fittings to be docked and the intermediate pipe are cut and ground smooth.

5. The pipeline docking and sealing process according to claim 2, characterized in that, In step S3, a standard running duration of the pipeline docking device is set. When the pipeline docking device is working, the real-time running duration of the pipeline docking device is recorded. When the real-time consumption length of the pipeline docking is lower than the first standard consumption length, the real-time running duration is judged according to the standard running duration. When the real-time running duration is less than the standard running duration, the running state of the current pipeline docking device is maintained. When the real-time running duration is greater than or equal to the standard running duration, it is determined whether to adjust the running state of the pipeline docking device according to the real-time temperature of the pipeline docking.

6. The pipeline docking and sealing process according to claim 1, characterized in that, The length of the intermediate pipe is not less than the outer diameter of the two pipe fittings to be docked, and the thickness of the intermediate pipe is not less than the average thickness of the two pipe fittings to be docked.

7. The pipeline docking and sealing process according to claim 1, characterized in that, The plug-in grooves cut out at both ends of the intermediate connecting pipe include a positive step pattern, a negative step pattern or a beveled pattern.

8. The pipeline docking and sealing process according to claim 1, characterized in that, The pipeline docking equipment includes a hydraulic telescopic shaft, a telescopic component, a clamping component, a motor, a pipe to be docked, an intermediate pipe, a rotating component, a temperature sensor, and a support frame; The telescopic component and the clamping component are used to clamp the two pipes to be butted and apply pressure to the two pipes to be butted; The two sides of the hydraulic telescopic shaft are respectively connected to the telescopic components, which are used to connect the two pipes to be connected and drive the telescopic components to contract through the hydraulic telescopic shaft, so that the two pipes to be connected are squeezed toward the middle pipe side; The rotating component is arranged on the support frame at the position of the middle connecting pipe, and is used to control the middle connecting pipe to rotate; The temperature sensor is arranged on the support frame at a position where the middle connecting pipe and the two pipes to be connected are connected, so as to monitor the real-time temperature of the connecting position.

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