Pipeline butt joint assisting device and pipeline butt joint method

Abstract

The invention discloses an auxiliary device for pipeline butt joint. The auxiliary device comprises a supporting base, a lifting unit, a direction adjusting unit, a supporting unit, an adjusting unit, a reinforcing unit and a limiting unit. The supporting seat is arranged in a foundation pit; the lifting unit is arranged on the supporting seat; the direction adjusting unit is arranged on the lifting unit; a fixing ring is arranged on the direction adjusting unit, and the pipeline is arranged in the fixing ring; one end of the supporting unit is connected with the fixing ring, and the other end abuts against the inner wall of the foundation pit. The adjusting unit is arranged on the fixing ring; the reinforcing units are arranged on the fixing rings and can pull the butt joint ends of the adjacent pipelines so that the adjacent pipelines can be tightly attached. And the limiting unit is arranged on the fixing ring, is connected with the reinforcing unit and is used for limiting the pipeline. The invention further provides a pipeline butt joint method. According to the invention, the adjacent pipelines are flatly butted in the field with large height difference change, so that the pipeline laying becomes convenient and simple.

Description

Technical Field

[0001] The invention relates to the field of natural gas construction, and in particular to a pipeline docking auxiliary device and a pipeline docking method. Background Art

[0002] Natural gas pipelines are usually made up of single steel gas pipelines connected one by one. Existing natural gas pipelines are usually large in diameter, high in pressure, and are mostly made of high-grade steel materials. When connecting natural gas pipelines, precise assembly is required to ensure that the pipelines are installed with the correct angle and qualified docking quality.

[0003] During the installation of natural gas pipelines, it is difficult to adjust the height, direction and angle due to the heavy weight of a single pipe and the heavy handling. In addition, the height difference of the land in the field varies greatly. Therefore, during the field installation of natural gas long-distance pipelines, it is difficult to lay the pipelines flatly and dock them, making the construction difficult. Summary of the invention

[0004] The main purpose of the present invention is to provide a pipeline docking auxiliary device and a pipeline docking method, so as to facilitate the smooth docking of adjacent pipelines in the field with large height differences, making pipeline laying convenient and simple.

[0005] The technical solution adopted by the present invention is: A pipeline docking auxiliary device, comprising a support seat, a lifting unit, a direction adjustment unit, a support unit, an adjustment unit, a reinforcement unit, and a limit unit; The support seat is placed in the foundation pit and fixed by screws; The lifting unit is placed on the support seat and can adjust the height of the pipeline; The direction adjustment unit is placed on the lifting unit; a fixing ring is provided on the direction adjustment unit, the pipeline is placed in the fixing ring, and the direction adjustment unit can adjust the direction of the pipeline; One end of the support unit is connected to the outer side of the fixing ring, and the other end is in contact with the inner wall of the foundation pit; The adjusting unit is installed on the outside of the fixing ring, and can push the pipe in the fixing ring to rotate vertically on the lifting unit, that is, the adjusting unit pushes the pipe in the fixing ring to rotate and adjust along the vertical horizontal plane on the lifting unit; The reinforcement unit is installed on the outside of the fixing ring and can pull the butt ends of adjacent pipes to make the adjacent pipes fit tightly; The limiting unit is arranged at the upper end of the fixing ring and connected with the reinforcing unit to limit the pipeline.

[0006] A further solution is that the lifting unit includes a rotating hemisphere, a lifting screw rod, and a lifting sleeve rod; The spherical surface of the rotating hemisphere is placed in the arc-shaped groove of the support seat, and the outer diameter of the rotating hemisphere matches the inner diameter of the arc-shaped groove, and the rotating hemisphere can rotate in the arc-shaped groove; an annular groove is provided on the arc-shaped groove of the support seat, and a T-shaped slider is provided on the spherical surface of the rotating hemisphere, and the T-shaped slider has a T-shaped head that is inserted into the annular groove, and the T-shaped slider can slide in the annular groove; The lifting screw is arranged on the plane of the rotating hemisphere; one end of the lifting sleeve is matched with the thread of the lifting screw, and the other end of the lifting sleeve is connected to the direction adjustment unit; When the rotating hemisphere is rotated, the lifting screw rotates with the rotating hemisphere, and the lifting sleeve rod is lifted or lowered under the action of the lifting screw, thereby driving the pipeline to be lifted or lowered.

[0007] The inner wall of the lifting sleeve is provided with an internal thread located outside the lifting screw, and the internal thread cooperates with the thread outside the lifting screw, so that when the rotating hemisphere drives the lifting screw to rotate, the fixing ring can be driven to rise and fall through the lifting sleeve.

[0008] When two sets of fixing rings are fixed on both ends of the butt-jointed pipes (adjacent pipes), one end of the pipe can be lifted by rotating the lifting screw on one side of the pipe, and the pipe can be supported and adjusted in an inclined shape after rotating on the lifting sleeve rod to match the height and angle of the other pipe, so that the entire device can adapt to complex field environments with height differences.

[0009] A further solution is that a plurality of handles are provided on the plane of the rotating hemisphere, so that an operator can stably rotate the rotating hemisphere on the support seat.

[0010] A further solution is that a scaled indicator rod is provided on the plane of the rotating hemisphere, and a sliding sleeve is sleeved on the indicator rod; the upper end of the sliding sleeve is fixed to the lower end of the fixing ring, and the indicator rod can slide in the sliding sleeve; When the lifting sleeve rod rises under the action of the lifting screw rod, the indicator rod and the scale in the sliding sleeve are exposed, so that the operator can understand the lifting height more accurately.

[0011] A further solution is that the direction adjustment unit comprises a rotating block, the lower end of the rotating block is hinged to the upper end of the lifting sleeve rod of the lifting unit, and the rotating block is connected to the fixing ring.

[0012] A further solution is that there are two support units, which are located on both sides of the pipeline, and include a support sleeve rod, a cross bar, a stop block, and a support spring; One end of the support sleeve rod is connected to the outer side of the fixing ring; One end of the cross bar is connected to one side of the stop block, and the other end is inserted into the support sleeve rod, and the cross bar can slide in the support sleeve rod; The other side of the stop block is in contact with the inner wall of the foundation pit; the stop block is L-shaped, and its L end is inclined inward; when the stop block is placed on the inner side of the foundation pit following the fixing ring, the inclined L end can be squeezed to the inner side of the foundation pit and fit tightly with the inner wall of the foundation pit; when the stop block fits tightly with the inner wall of the foundation pit, it can limit the fixing ring from fixing the supporting pipe and prevent the fixing ring from rotating with the rotation of the lifting screw.

[0013] The support spring is in a compressed state, and is placed between the support sleeve rod and the cross bar, with one end of the support spring connected to the support sleeve rod and the other end of the support spring connected to the cross bar.

[0014] A further solution is that the adjustment unit includes a telescopic rod, a support plate, an adjustment screw, a sliding block, a slider, and an inclined rod; The telescopic rod comprises a connecting rod and an adjusting sleeve rod, wherein the inner diameter of the adjusting sleeve rod matches the outer diameter of the connecting rod; one end of the connecting rod is connected to the outer side of the fixing ring, and the other end of the connecting rod is inserted into the adjusting sleeve rod, and the connecting rod can slide in the adjusting sleeve rod; the adjusting sleeve rod is connected to the supporting plate; One end of the adjusting screw is rotatably connected to the connecting rod, and the other end is connected to the limiting part; a sliding block is provided on the adjusting screw, and the sliding block is adapted to the thread on the adjusting screw (that is, a threaded hole is provided in the sliding block, and the threaded hole cooperates with the thread on the outer side of the adjusting screw); a sliding block is provided at one end of the sliding block, and the other end of the sliding block is connected to the adjusting sleeve rod through an inclined rod (the inclined rod is hinged to the sliding block and the adjusting sleeve rod respectively); a first sliding groove adapted to the sliding block is provided on the outer side of the fixing ring, and the sliding block can slide in the first sliding groove, so that the sliding block moves stably; By turning the adjusting screw, the sliding block can be driven to move closer to or farther from the connecting rod, thereby pushing or pulling the adjusting sleeve rod through the inclined rod to drive the support plate to move. For example: when the lifting unit raises the pipeline (turning the rotating hemisphere drives the lifting screw to rotate synchronously, which can drive the lifting sleeve rod to rise), the adjusting screw is turned, and the adjusting screw drives the sliding block to slide steadily, so that the inclined rod drives the telescopic rod to extend, and the telescopic rod drives the support plate to contact the foundation pit. The telescopic rod pushes the pipeline in the fixed ring to rotate and adjust along the vertical and horizontal planes on the lifting sleeve rod of the lifting unit, thereby quickly adjusting the pipeline docking angle.

[0015] A further solution is that the limiting unit includes a first connecting block, a second connecting block, an insert block, a hinge block, a pressing block, and a limiting block; The first connecting blocks have two pieces, which are respectively connected to the rotating ring of the reinforcement unit; The second connecting block has two pieces, which are respectively connected to the two ends of the fixed ring (the end away from the rotating block); the fixed ring is composed of multiple arc-shaped blocks; When the two first connection blocks and / or the two second connection blocks are fitted together, an insert block with a U-shaped cross section is slidably connected to the outside of the two first connection blocks and the two second connection blocks (the specifications of the inner side of the insert block match the specifications of the outer side when the two first connection blocks and the two second connection blocks are fitted together); a hinge block is fixedly connected to the outer side of the insert block, and the outer side of the hinge block is rotatably connected to the pressing block through a rotating shaft, and a torsion spring is arranged between the pressing block and the hinge block (the pressing block rotates on the hinge block through the rotating shaft and is reset by the torsion spring); a limiting block is fixedly connected to one end of the inner side of the pressing block, and the limiting block is inserted into the second connection block and / or the first connection block and the second connection block after passing through the insert block (limiting grooves are provided on the outer sides of the first connection block and the second connection block, and when limiting, the limiting block is inserted into the limiting groove). Preferably, the part of the limiting block inserted into the limiting groove is inclined.

[0016] When the fixed ring is not limited and unfolded, it can be fixed in the foundation pit through the support seat, and the pipeline can be hoisted into the fixed ring for support. When the multi-section arc blocks of the fixed ring are rotated in sequence to fit the pipeline, and the second connecting block is fixed by the plug block, the support sleeve rod, cross bar and stop block on the fixed ring are used for stable support.

[0017] A further solution is that there are two reinforcement units, which are symmetrically arranged and include a support block, a rotating ring, a reinforcement screw, a reinforcement rod, a stopper, a transmission assembly, and a guide wheel; One end of the support block is fixedly connected to the outer side of the fixing ring; One end of the rotating ring is rotatably connected to the other end of the supporting block, and the other end of the rotating ring is connected to the lower end of the first connecting block of the limiting unit; a supporting groove is opened on the front side of the rotating ring; There are two reinforcing screws, which are respectively located at the two ends of the support groove on the rotating ring; one end of the reinforcing screw is provided with a rotating shaft (the reinforcing screw is rotatably connected to the back of the rotating ring through the rotating shaft), and the other end passes through the rotating ring and the support groove on the rotating ring, and then passes through the rotating ring of the pipeline docking auxiliary device of the adjacent pipeline and the support groove on the rotating ring, and then is connected to the reinforcing rod; The reinforcing rod is L-shaped, one end of which is threadedly connected to the reinforcing screw (a thread groove is provided at one end of the reinforcing rod close to the rotating ring, and the thread groove cooperates with the thread on the outer side of the reinforcing screw, so that the rotating reinforcing screw can drive the reinforcing rod to move toward or away from the rotating ring, so that when the L end of the reinforcing rod is driven, it can pull the two butted pipes to fit tightly); limiters are provided on both sides of the end connected to the reinforcing screw (a limiter with one end penetrating the rotating ring is fixedly connected to one end of the reinforcing rod close to the rotating ring); The transmission assembly includes a transmission wheel and a transmission belt; there are two transmission wheels, which are respectively placed on two reinforcement screws; the transmission belt is sleeved on the two transmission wheels; when any one of the two reinforcement screws on the same side is rotated, the other reinforcement screw on the same side can be driven to rotate synchronously, thereby increasing the convenience of docking the two pipelines; The guide wheel is placed in the support groove to guide the transmission belt so that the transmission belt can be stably sleeved on the outer side of the transmission wheel and rotate with the transmission wheel.

[0018] After the height and angle of the butt ends of adjacent pipes are adjusted, the reinforcing screw on the rotating ring is rotated, and the reinforcing screw drives the L-shaped reinforcing rod close to the rotating ring, pulling the butt ends of adjacent pipes to fit tightly, thereby increasing the tight fit when the pipes are butt-jointed.

[0019] A further solution is that a sealing ring is slidably connected to the outer side of the adjacent pipes, a gas concentration sensor with one end penetrating and extending to the inner side thereof is fixedly installed on the outer side of the sealing ring, and a sealing ring is fixedly connected to the inner side of the sealing ring. The sealing ring and the sealing ring can increase the sealing of the flange connection after the pipe is connected. Preferably, the sealing ring is composed of two semicircular rings, one side of the two semicircular rings is hinged by a hinge, and the other side is fixed by a conventional bolt. The gas concentration sensor can be connected to the operator's operation terminal for signal (such as a host computer). If a leak occurs at the pipe connection and the concentration of the leaked gas exceeds the set monitoring value, an alarm is sent to the terminal to remind the operator to perform maintenance in time.

[0020] A further solution is that a bubble level is fixedly installed on the front of the fixing ring to facilitate the operator to observe the horizontality of the pipeline by observing the bubble level when adjusting the pipeline angle, making the adjustment more convenient and accurate.

[0021] A pipeline docking method, the method adopts the above pipeline docking auxiliary device; the method comprises the following steps: (1) Fix the support seat in the foundation pit with screws, lift the pipeline to the inner side of the fixing ring for support, rotate the multi-section arc block of the fixing ring to make it fit with the pipeline, and then the second connection block at the upper end of the fixing ring will also fit with it; after sliding the plug block to the two second connection blocks, insert the limit block into the limit groove of the second connection block for fixing; at this time, the sleeve rod on the fixing ring supports the cross bar, the stop block fits tightly with the inner wall of the foundation pit, and the support plate of the adjustment unit is not fixed to fit with the inner wall of the foundation pit; (2) Rotate the rotating hemisphere of the lifting unit, which drives the lifting screw to rotate synchronously, and the lifting screw drives the lifting sleeve rod, the direction adjustment unit and the fixed ring to rise synchronously, thereby adjusting the docking height of the supported pipe; (3) Turn the adjusting screw, the adjusting screw drives the sliding block to slide stably, the sliding block drives the slider to slide stably, and then the inclined rod drives the telescopic sleeve to extend, and the support plate abuts against the foundation pit. Since the rotating block of the direction adjustment unit can rotate, the direction of the pipe in the fixed ring can be pushed to adjust; (4) After the height, angle and direction of the butt ends of the adjacent pipes are adjusted, the rotating ring is rotated, and the first connection blocks at both ends of the rotating ring are fitted together. After the insert block is slid to the two first connection blocks, it is inserted into the limit grooves of the first connection block and the second connection block through the limit block for fixing; the screws on the support seat are removed, and the reinforcing screw rod is connected to the reinforcing rod after passing through the rotating ring on the adjacent pipe and the support groove on the rotating ring; the reinforcing screw rod is rotated, and the reinforcing screw rod drives the reinforcing rod to pull the butt ends of the adjacent pipes to fit closely together, thereby completing the butt connection of the adjacent pipes; In step (2), when there is a height difference in the land, the rotating hemisphere on one side of one of the pipes is rotated to make one end of the pipe on that side rise or droop, that is, the pipe is tilted to adapt to the environment with the height difference.

[0022] The beneficial effects of the present invention are: By setting up a lifting unit, the height adjustment of adjacent pipelines is convenient for docking, ensuring the docking quality, which is particularly suitable for environments with large land height differences; By setting the direction adjustment unit, the angle adjustment of adjacent pipes is convenient for docking, ensuring the docking quality; By setting a support unit to support the pipeline, it is convenient to connect adjacent pipelines; By setting the adjustment unit, the pipeline can be easily rotated left and right, and the pipeline docking angle can be quickly adjusted; By setting up the reinforcement unit, it is convenient to pull the butt ends of adjacent pipes so that the adjacent pipes fit closely, thereby improving the butt quality; By setting the limit unit, it is convenient to limit and fix the pipeline to facilitate docking; The present invention can not only provide reliable support for the pipeline in the foundation pit, but also conveniently adjust the height, direction and angle of the pipeline, thereby solving the problem that the pipeline is difficult to support during docking and the height, direction and angle of the pipeline are difficult to adjust, and the construction is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1It is a structural schematic diagram of a pipeline docking auxiliary device; Figure 2 It is a side view structural schematic diagram of a pipeline docking auxiliary device; Figure 3 is a schematic diagram of the structure of the regulating unit; Figure 4 It is a schematic diagram of the connection structure of the fixing ring, the reinforcement unit and the limiting unit; Figure 5 yes Figure 4 An enlarged schematic diagram of A in FIG. Figure 6 It is a schematic diagram of the connection structure of the reinforcing screw, the reinforcing rod and the limiting member; Figure 7 It is a schematic diagram of the structure of the sealing ring and the gas concentration sensor; In the figure; 1, foundation pit; 2, rotating hemisphere; 3, lifting screw; 4, lifting sleeve rod; 5, rotating block; 6, fixing ring; 7, supporting unit; 71, supporting sleeve rod; 72, cross bar; 73, supporting spring; 74, resisting block; 8, reinforcing unit; 81, supporting block; 82, rotating ring; 83, supporting groove; 84, guide wheel; 85, reinforcing screw; 86, reinforcing rod; 87, limiting rod; 88, transmission assembly; 9, adjusting unit; 91, connecting rod; 92, adjusting screw; 93, sliding block; 94, sliding block; 95, inclined rod; 96, adjusting sleeve rod; 97, supporting plate; 10, limiting unit; 101, first connecting block; 102, hinge block; 103, plug block; 104, pressing block; 105, limiting block; 106, second connecting block; 11, supporting seat; 14, sealing ring; 15, gas concentration sensor. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and 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.

[0026] Example 1 See also Figure 1-Figure 7 A pipeline docking auxiliary device includes a support seat 11, a lifting unit, a direction adjustment unit, a support unit 7, an adjustment unit 9, a reinforcement unit 8, and a limit unit 10.

[0027] The support base 11 is placed in the foundation pit 1 and fixed by screws.

[0028] The lifting unit can adjust the height and inclination angle of the pipeline, and includes a rotating hemisphere 2, a lifting screw 3, and a lifting sleeve 4. The spherical surface of the rotating hemisphere 2 is placed in the arc groove of the support seat 11, and the outer diameter of the rotating hemisphere 2 matches the inner diameter of the arc groove, and the rotating hemisphere 2 can rotate in the arc groove. An annular groove is provided on the arc groove of the support seat 11, and a T-shaped slider is provided on the spherical surface of the rotating hemisphere 2. The T-head of the T-shaped slider is stuck in the annular groove, and the T-shaped slider can slide in the annular groove. The lifting screw 3 is installed on the plane of the rotating hemisphere 2; one end of the lifting sleeve 4 is adapted to the thread of the lifting screw 3, and the other end of the lifting sleeve 4 is connected to the rotating block 5 of the direction adjustment unit. In order to facilitate the rotation of the rotating hemisphere 2, multiple handles can be provided on the plane of the rotating hemisphere 2.

[0029] The rotating hemisphere 2 is rotated, and the lifting screw 3 rotates with the rotating hemisphere 2. The lifting sleeve 4 is lifted and lowered under the action of the lifting screw 3, thereby driving the pipeline to be lifted and lowered. In this embodiment, the inner circumferential wall of the lifting sleeve 4 is provided with an internal thread located on the outside of the lifting screw 3. The internal thread cooperates with the thread on the outside of the lifting screw 3, so that when the rotating hemisphere 2 drives the lifting screw 3 to rotate, the pipeline can be driven to be lifted and lowered through the lifting sleeve 4. When two sets of fixing rings 6 are fixed on both ends of the docking pipeline (adjacent pipelines), by rotating the lifting screw 3 on one side of the pipeline, one end of the pipeline is lifted, and the pipeline can be tilted, so that the pipeline is adapted to the height and angle of the other pipeline, so that the entire device can adapt to complex field environments with height differences.

[0030] The direction adjustment unit can adjust the direction of the pipeline, and comprises a rotating block 5, the lower end of the rotating block 5 is hinged to the upper end of the lifting sleeve rod 4 of the lifting unit, and the rotating block 5 is connected to a fixing ring 6. The pipeline is placed in the fixing ring 6.

[0031] There are two support units 7, which are respectively located on both sides of the pipeline and are used to support the pipeline. They include a support sleeve rod 71, a cross bar 72, a stop block 74, and a support spring 73. One end of the support sleeve rod 71 is connected to the outer side of the fixed ring 6. One end of the cross bar 72 is connected to one side of the stop block 74, and the other end of the cross bar 72 is inserted into the support sleeve rod 71, and the cross bar 72 can slide in the support sleeve rod 71. The other side of the stop block 74 abuts against the inner wall of the foundation pit 1. In this embodiment, the stop block 74 is L-shaped, and its L end is inclined inward; when the stop block 74 is placed in the foundation pit following the fixed ring 6, the inclined L end can be squeezed to the inner side of the foundation pit 1 and fits tightly with the inner wall of the foundation pit 1. When the stop block 74 fits tightly with the inner wall of the foundation pit 1, it can limit the fixed ring 6 from fixing the support pipeline and prevent the fixed ring 6 from rotating with the rotation of the lifting screw 3. The support spring 73 is in a compressed state, and is placed between the support sleeve rod 71 and the cross bar 72 , with one end connected to the support sleeve rod 71 and the other end connected to the cross bar 72 .

[0032] The adjustment unit 9 is installed on the outer side of the fixed ring 6, and can push the pipe in the fixed ring 6 on the lifting unit to rotate and adjust along the vertical and horizontal planes. It includes a telescopic rod, a support plate 97, an adjustment screw 92, a sliding block 94, a slider 93, and an inclined rod 95. The telescopic rod includes a connecting rod 91 and an adjustment sleeve rod 96. The inner diameter of the adjustment sleeve rod 96 is adapted to the outer diameter of the connecting rod 91; one end of the connecting rod 91 is connected to the outer side of the fixed ring 6, and the other end of the connecting rod 91 is inserted into the adjustment sleeve rod 96, and the connecting rod 91 can slide in the adjustment sleeve rod 96; the adjustment sleeve rod 96 is connected to the support plate 97. One end of the adjustment screw 92 is rotatably connected to the connecting rod 91, and the other end is connected to the limiter. A sliding block 94 is provided on the adjusting screw 92, and the sliding block 94 is adapted to the thread on the adjusting screw 92 (that is, a threaded hole is opened in the sliding block 94, and the threaded hole cooperates with the thread on the outer side of the adjusting screw 92). The upper end of the sliding block 94 is provided with a slider 93, the lower end of the sliding block 94 is hinged to one end of the inclined rod 95, and the other end of the inclined rod 95 is hinged to the adjusting sleeve rod 96. The outer side of the fixing ring 6 is provided with a first slide groove adapted to the sliding block 93, and the sliding block 93 can slide in the first slide groove, so that the sliding block 93 moves stably. The adjusting screw 92 is rotated, and the adjusting screw 92 drives the sliding block 94 to move toward or away from the connecting rod 91, thereby pushing or pulling the adjusting sleeve rod 96 through the inclined rod 95 to drive the support plate 97 to move. For example, when the lifting unit raises the pipeline (rotating the rotating hemisphere 2 drives the lifting screw 3 to rotate synchronously, and then drives the lifting sleeve rod 4 to rise), the adjusting screw 92 is rotated, and the adjusting screw 92 drives the sliding block 94 to slide stably, so that the inclined rod 95 drives the telescopic rod to extend, and the telescopic rod drives the support plate 97 to contact the foundation pit 1, and the telescopic rod pushes the pipeline in the fixed ring 6 on the lifting sleeve rod 4 of the lifting unit to rotate and adjust along the vertical horizontal plane, thereby quickly adjusting the pipeline docking angle (the rotating adjusting screw 92 can drive the sliding block 94 to approach the connecting rod 91, and the connecting rod 91 can slide and retract on the adjusting sleeve rod 96, so the sliding block 94 close to the connecting rod 91 drives the inclined rod 95 to rotate, and pushes the adjusting sleeve rod 96 to slide toward the end away from the connecting rod 91, and drives the adjusting sleeve rod 96 to adjust in the direction perpendicular to the pipe, and the pipe pushed by the extended adjusting sleeve rod 96 can rotate along the vertical horizontal plane on the lifting sleeve rod).

[0033] There are two reinforcement units 8, which are symmetrically arranged and installed on the outside of the fixed ring 6. They can pull the butt ends of adjacent pipes to make the adjacent pipes fit tightly. In this embodiment, the reinforcement unit 8 includes a support block 81, a rotating ring 82, a reinforcement screw 85, a reinforcement rod 86, a limiter 87, a transmission assembly 88, and a guide wheel 84. One end of the support block 81 is fixedly connected to the outside of the fixed ring 6. One end of the rotating ring 82 is rotatably connected to the other end of the support block 81, and the other end of the rotating ring 82 is connected to the lower end of the first connecting block 101 of the limit unit 10; a support groove 83 is opened on the front of the rotating ring 82. There are two reinforcing screws 85, which are respectively located at the two ends of the support groove 83 on the rotating ring 82; a rotating shaft is provided at one end of the reinforcing screw 85 (the reinforcing screw 85 is rotatably connected to the back side of the rotating ring 82 through the rotating shaft), and the other end of the reinforcing screw 85 passes through the rotating ring 82 and the support groove 83 on the rotating ring 82, and then passes through the rotating ring 82 of the pipeline docking auxiliary device of the adjacent pipeline and the support groove 83 on the rotating ring 82, and then is connected to the reinforcing rod 86. In this embodiment, the reinforcing rod 86 is L-shaped, and one end of the reinforcing rod 86 is threadedly connected to the reinforcing screw 85 (a thread groove is provided at one end of the reinforcing rod 86 close to the rotating ring 82, and the thread groove cooperates with the thread on the outer side of the reinforcing screw 85, so that the rotating reinforcing screw 85 can drive the reinforcing rod 86 to move toward or away from the rotating ring 82, so that when the L end of the reinforcing rod 86 is driven, it can pull the two butted pipes to fit tightly together); one end of the reinforcing rod 86 close to the rotating ring 82 is fixedly connected to a limiter with one end passing through the rotating ring 82. The transmission assembly 88 includes a transmission wheel and a transmission belt; there are two transmission wheels, which are respectively placed on the two reinforcing screws 85; the transmission belt is sleeved on the two transmission wheels; when any one of the two reinforcing screws 85 on the same side is rotated, it can drive the other reinforcing screw 85 on the same side to rotate synchronously, thereby increasing the convenience of butt jointing the two pipes. The guide wheel 84 is placed in the support groove 83 to guide the transmission belt so that the transmission belt can be stably sleeved on the outside of the transmission wheel and rotate with the transmission wheel.

[0034] After the height, direction and angle of the butt joint ends of adjacent pipes are adjusted, the reinforcing screw 85 on the rotating ring 82 is rotated, and the reinforcing screw 85 drives the L-shaped reinforcing rod 86 to approach the rotating ring 82, pulling the butt joint ends of adjacent pipes to fit tightly, thereby increasing the tight fit when the pipes are butt jointed.

[0035] The limiting unit 10 is installed at the upper end of the fixed ring 6 to limit the position of the pipeline. It includes a first connecting block 101, a second connecting block 106, an insert block 103, a hinge block 102, a pressing block 104, and a limiting block 105. The first connecting block 101 has two pieces, which are respectively connected to the two ends of the rotating ring 82 of the reinforcement unit 8. The second connecting block 106 has two pieces, which are respectively connected to the two ends of the fixed ring 6 (the end away from the rotating block 5). The fixed ring 6 is composed of multiple arc blocks. When the two first connecting blocks 101 and / or the two second connecting blocks 106 are attached together, the two first connecting blocks 101 and the two second connecting blocks 106 are slidably connected to the outside with an insert block 103 with a U-shaped cross section (the specifications of the inner side of the insert block 103 are adapted to the specifications of the outer side when the two first connecting blocks 101 and the two second connecting blocks 106 are attached); the outer side of the insert block 103 is fixedly connected with a hinge block 102. The outer side of the hinge block 102 is rotatably connected to the pressing block 104 via a rotating shaft, and a torsion spring is arranged between the pressing block 104 and the hinge block 102; the pressing block 104 rotates on the hinge block 102 via the rotating shaft and is reset by the torsion spring. The inner end of the pressing block 104 is fixedly connected to the limiting block 105, and the limiting block 105 passes through the insert block 103 and then is inserted into the limiting groove on the second connection block 106 and / or the first connection block 101 and the second connection block 106. In this embodiment, the portion of the limiting block 105 inserted into the limiting groove is inclined.

[0036] When the fixing ring 6 is not limited and unfolded, it can be fixed in the foundation pit 1 through the support seat 11, and the pipeline can be hoisted into the fixing ring 6 for support. When the multi-section arc blocks of the fixing ring 6 are rotated in sequence to fit the pipeline, and the second connecting block 106 is fixed by the insert block 103, the fixing ring 6 is stably supported by the support sleeve rod 71, the cross bar 72 and the stop block 74.

[0037] In this embodiment, the outer side of the adjacent pipes is slidably connected with a sealing ring 14, which is composed of two semicircular rings, one side of which is hinged by a hinge, and the other side is fixed by a conventional bolt. A gas concentration sensor 15 with one end penetrating and extending to the inner side thereof is fixedly installed on the outer side of the sealing ring 14, and a sealing ring is fixedly connected to the inner side of the sealing ring 14. The sealing ring 14 and the sealing ring can increase the sealing of the flange connection after the pipe is connected. The gas concentration sensor 15 can be connected to the upper computer operated by the operator for signal connection. If a leak occurs at the pipe connection and the concentration of the leaked gas exceeds the set monitoring value, an alarm is issued to the upper computer to remind the operator to perform maintenance in time.

[0038] In this embodiment, in order to facilitate the operator to adjust the pipeline angle more conveniently and accurately, a bubble level can be fixedly installed on the front of the fixing ring 6, and the horizontality of the pipeline can be observed by observing the bubble level.

[0039] Example 2 The difference from the first embodiment is that a scaled indicator rod is provided on the plane of the rotating hemisphere 2, and a sliding sleeve is sleeved on the indicator rod. The upper end of the sliding sleeve is fixed to the lower end of the fixed ring 6, and the indicator rod can slide in the sliding sleeve. When the lifting sleeve rod 4 rises under the action of the lifting screw rod 3, the scale on the indicator rod is exposed, so that the operator can more accurately understand the lifting height.

[0040] Example 3 A pipeline docking method, which adopts the pipeline docking auxiliary device of embodiment 2; the method comprises the following steps: (1) Fix the support seat in the foundation pit by screws. After the support seat 11 is fixed in the foundation pit 1, since the fixing ring 6 is composed of a plurality of arc blocks and can be fixed by the plug block 103 on the second connecting block 106, when the fixing ring 6 is not fixed by the plug block 103 and is in the unfolded state, the pipeline can be hoisted to the inner side of the fixing ring 6 for support, and the plurality of arc blocks of the fixing ring are rotated to fit with the pipeline. At this time, the second connecting block at the upper end of the fixing ring will also fit with it. After the plug block is slid to the two second connecting blocks, it is inserted into the limiting groove of the second connecting block through the limiting block for fixing. At this time, the sleeve rod 71 on the fixing ring supports the cross bar, and the abutment block fits tightly with the inner wall of the foundation pit, thereby realizing stable support for the fixing ring 6 and the pipeline. At this time, the support plate of the adjustment unit is not fixed to fit with the inner wall of the foundation pit. (2) The rotating hemisphere of the lifting unit is rotated, and the rotating half ring 2 can rotate in the support seat 11. The rotating hemisphere drives the lifting screw to rotate synchronously, and the lifting screw drives the lifting sleeve rod, the direction adjustment unit and the fixed ring to rise synchronously, thereby adjusting the docking height of the supported pipeline; When there is a height difference in the land, the rotating hemisphere on one side of one of the pipes is rotated to make one end of the pipe on that side rise or droop, that is, the pipe is tilted to adapt to the environment with the height difference, thus completing the angle adjustment of the pipe; (3) Rotate the adjusting screw 92, the adjusting screw 92 drives the sliding block 94 to slide stably, the sliding block 94 drives the slider to slide stably, and then the inclined rod drives the telescopic sleeve rod to extend, and the support plate abuts against the foundation pit; because the rotating block of the direction adjustment unit can rotate, the fixed ring 6 can rotate forward and backward and left and right through the rotating block 5, which can push the pipe in the fixed ring 6 to rotate left and right, and quickly adjust the pipe docking direction; (4) After the height, angle and direction of the butt ends of the adjacent pipes are adjusted, the rotating ring is rotated so that the first connecting blocks at both ends of the rotating ring fit together. After the insert block is slid to the two first connecting blocks, it is inserted into the limiting grooves of the first connecting block and the second connecting block through the limiting block for fixing. The screws on the support seat are removed, and the reinforcing screw rod is connected to the reinforcing rod after passing through the rotating ring on the adjacent pipe and the supporting groove on the rotating ring. The reinforcing screw rod is rotated so that the reinforcing screw rod drives the reinforcing rod to approach the rotating ring 82, and pulls the butt ends of the adjacent pipes to fit closely, that is, at the connecting flange, the operator tightens some of the bolts used for pipe butt connection or performs partial welding on the pipe butt connection to complete the butt connection of the adjacent pipes.

[0041] In the present invention, after two sets of fixing rings 6 are fixed on both ends of the butted pipes (adjacent pipes), one end of the pipe is lifted by rotating the lifting screw 3 on one side, and the other end can be supported and adjusted in an inclined state after being rotated by the rotating block, so that the entire structure can support the pipe in an inclined manner to adapt to the complex outdoor environment with height difference. When the pipe is fixed, the pressing block 104 can be squeezed, the plug block 103 can be removed, and the fixing ring 6 can be rotated 180 degrees to remove the entire structure from the foundation pit 1.

[0042] In the present invention, during the process of adjusting the height, angle and direction of the pipeline, the bubble level on the front of the fixing ring 6 can facilitate the operator to observe the horizontality of the pipeline by observing the bubble level, and determine the pipeline adjustment height by the indicator rod at the lower end of the fixing ring 6, which is more accurate in adjusting the angle and height than the traditional technology. In addition, the sealing performance of the flange connection after the pipeline is connected can be increased by the sealing ring 14 and the inner sealing ring.

[0043] In the present invention, the fixing ring is composed of a plurality of arc-shaped blocks; when the fixing ring is not limited and unfolded, the pipe can be fixedly supported by the support seat, and the operation has higher precision than that of lifting; when the plurality of arc-shaped blocks of the fixing ring are rotated in sequence to fit the pipe and are fixed by the insert blocks, the sleeve rod, cross bar and stop block on the fixing ring can be used for stable support, so compared with the traditional technology, the operation is simpler and the safety is greatly improved.

[0044] In the present invention, the lifting screw can be driven to rotate synchronously by rotating the hemisphere in the support seat, and the lifting screw drives the lifting sleeve to move up and down, so as to adjust the docking height of the fixed ring and the pipeline; at the same time, the fixed ring drives the sliding block to slide stably, and the adjusting sleeve can be lifted or pulled to extend and retract by the inclined rod, so that the supporting plate on the adjusting sleeve is driven to contact the foundation pit through the adjusting screw on one side or the other side, and the pipeline in the fixed ring is pushed to rotate left and right, so as to realize the rapid adjustment of the docking direction of the pipeline. Compared with the traditional technology, the adjustment operation of the pipeline is simpler and more practical.

[0045] In the present invention, after the height, direction and angle of the butt joint of two pipes are completed, the reinforcing screw on the rotating ring can be rotated to drive the L-shaped reinforcement rod close to the rotating ring, so as to pull the butt joint ends of the two pipes to fit tightly together. Compared with the traditional technology, the tight fit of the pipes during butt joint is increased, and the safety is greatly improved.

[0046] In the present invention, since the fixing ring can be rotated forward and backward and left and right on the lifting sleeve rod through the rotating block, after the fixing rings are fixed at both ends of the docking pipe, the lifting screw on one side can be rotated to lift one end of the pipe and rotate the other end on the lifting sleeve rod to achieve pipe angle and direction adjustment. Compared with traditional fixing methods, it can adapt to complex field environments with height differences.

[0047] The rotating block 5 on the direction adjustment unit supports the fixed ring 6, so in cooperation with the rotating hemisphere 2, the lifting screw 3, and the lifting sleeve rod 4, the fixed ring 6 supports the end of the pipeline. Only when the end of the pipeline is supported, the adjustment unit 9 located obliquely below the fixed ring 6 can push the end of the pipeline along the hinge between the rotating block 5 and the lifting sleeve rod 4 through telescopic movement, and rotate left and right in the vertical and horizontal planes. When the rotating block 5 can rotate back and forth on the fixed ring 6, the rotating blocks 5 at both ends of the lifting pipeline can be used to achieve Figure 2 The horizontal adjustment of the pipeline in the perspective.

[0048] In the present invention, vertical rotation can be understood as the pipeline being rotated and adjusted on the lifting sleeve rod 4 along the vertical horizontal plane.

[0049] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0050] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A pipeline docking auxiliary device, characterized in that: It includes a support base, a lifting unit, a direction adjustment unit, a support unit, an adjustment unit, a reinforcement unit, and a limit unit; The support seat is placed in the foundation pit; The lifting unit is placed on the support seat and can adjust the height of the pipeline; The direction adjustment unit is placed on the lifting unit; a fixing ring is provided on the direction adjustment unit, the pipeline is placed in the fixing ring, and the direction adjustment unit can adjust the direction of the pipeline; One end of the support unit is connected to the fixing ring, and the other end is in contact with the inner wall of the foundation pit; The adjusting unit is mounted on the fixing ring and can push the pipe in the fixing ring to rotate vertically on the lifting unit; The reinforcement unit is installed on the fixing ring and can pull the butt ends of adjacent pipes to make the adjacent pipes fit tightly; The limiting unit is installed on the fixing ring and connected with the reinforcing unit to limit the pipeline.

2. The pipeline docking auxiliary device according to claim 1, characterized in that: The lifting unit includes a rotating hemisphere, a lifting screw rod, and a lifting sleeve rod; The spherical surface of the rotating hemisphere is placed in the arc-shaped groove of the support seat, and the outer diameter of the rotating hemisphere matches the inner diameter of the arc-shaped groove; an annular groove is provided on the arc-shaped groove of the support seat, and a T-shaped slider is provided on the spherical surface of the rotating hemisphere, the T-head of the T-shaped slider is inserted into the annular groove, and the T-shaped slider can slide in the annular groove; The lifting screw is arranged on the plane of the rotating hemisphere; one end of the lifting sleeve is matched with the thread of the lifting screw, and the other end of the lifting sleeve is connected to the direction adjustment unit; When the rotating hemisphere is rotated, the lifting screw rotates with the rotating hemisphere, and the lifting sleeve rod is lifted or lowered under the action of the lifting screw, thereby driving the pipeline to be lifted or lowered.

3. The pipeline docking auxiliary device according to claim 2, characterized in that: A plurality of handles are arranged on the plane of the rotating hemisphere.

4. The pipeline docking auxiliary device according to claim 2, characterized in that: An indicating rod with scales is arranged on the plane of the rotating hemisphere, and a sliding sleeve is sleeved on the indicating rod; the upper end of the sliding sleeve is fixed on the fixing ring, and the indicating rod can slide in the sliding sleeve.

5. The pipeline docking auxiliary device according to claim 1, characterized in that: The direction adjustment unit comprises a rotating block, which is hinged to the upper end of the lifting sleeve rod of the lifting unit.

6. The pipeline docking auxiliary device according to claim 1, characterized in that: There are two support units, which are located on both sides of the pipeline respectively, and include a support sleeve rod, a cross bar, a stop block, and a support spring; One end of the support sleeve rod is connected to the fixing ring; One end of the cross bar is connected to one side of the stop block, and the other end is inserted into the support sleeve rod; The other side of the abutment block abuts against the inner wall of the foundation pit; the abutment block is L-shaped, and its L end is inclined inward; The support spring is in a compressed state, and is placed between the support sleeve rod and the cross bar, with one end of the support spring connected to the support sleeve rod and the other end of the support spring connected to the cross bar.

7. The pipeline docking auxiliary device according to claim 1, characterized in that: The adjustment unit includes a telescopic rod, a support plate, an adjustment screw, a sliding block, a slider, and an inclined rod; The telescopic rod comprises a connecting rod and an adjusting sleeve rod; one end of the connecting rod is connected to the fixing ring, and the other end of the connecting rod is inserted into the adjusting sleeve rod, and the connecting rod can slide in the adjusting sleeve rod; the adjusting sleeve rod is connected to the supporting plate; One end of the adjusting screw is connected to the connecting rod, and the other end is connected to the limiting part; a sliding block is provided on the adjusting screw, and the sliding block is adapted to the thread on the adjusting screw; a sliding block is provided at one end of the sliding block, and the other end of the sliding block is connected to the adjusting sleeve rod through an inclined rod; a first sliding groove adapted to the sliding block is provided on the outer side of the fixing ring, and the sliding block can slide in the first sliding groove; When the lifting unit raises the pipeline, the adjusting screw is rotated, and the adjusting screw drives the sliding block to slide, so that the inclined rod drives the telescopic rod to extend, and the telescopic rod drives the supporting plate to contact the foundation pit, and the telescopic rod pushes the pipeline in the fixed ring to rotate vertically on the lifting sleeve rod of the lifting unit, thereby adjusting the pipeline docking angle.

8. The pipeline docking auxiliary device according to claim 1, characterized in that: The limiting unit includes a first connecting block, a second connecting block, an insert block, a hinge block, a pressing block, and a limiting block; There are two first connection blocks, each of which is connected to the reinforcement unit; The second connecting block has two pieces, which are respectively connected to the two ends of the fixing ring; the fixing ring is composed of multiple arc-shaped blocks; When the two first connecting blocks and / or the two second connecting blocks are connected together, an insert block with a U-shaped cross section is slidably connected to the outside of the two first connecting blocks and the two second connecting blocks; a hinge block is fixedly connected to the outside of the insert block, and the hinge block is rotatably connected to the pressing block through a rotating shaft, and a torsion spring is arranged between the pressing block and the hinge block; an inner end of the pressing block is fixedly connected to a limiting block, and after the limiting block passes through the insert block, it is inserted into the second connecting block and / or the first connecting block and the second connecting block.

9. The pipeline docking auxiliary device according to claim 1, characterized in that: There are two reinforcement units, which are symmetrically arranged, and include a support block, a rotating ring, a reinforcement screw, a reinforcement rod, a stopper, a transmission assembly, and a guide wheel; The support block is connected to the fixing ring; One end of the rotating ring is rotatably connected to the support block, and the other end is connected to the first connection block of the limiting unit; a supporting groove is provided on the rotating ring; There are two reinforcing screw rods, which are respectively located at the two ends of the support groove; one end of the reinforcing screw rod is provided with a rotating shaft, and the other end passes through the rotating ring and the support groove on the rotating ring, and then passes through the rotating ring of the pipeline docking auxiliary device of the adjacent pipeline and the support groove on the rotating ring, and then is connected to the reinforcing rod; The reinforcing rod is L-shaped, one end of which is connected to the reinforcing screw rod; limiting pieces are provided on both sides of the end connected to the reinforcing screw rod; The transmission assembly includes a transmission wheel and a transmission belt; there are two transmission wheels, which are respectively placed on two reinforcement screws; the transmission belt is sleeved on the two transmission wheels; The guide wheel is placed in the support groove to guide the transmission belt.

10. A pipeline docking method, characterized in that: The method adopts the pipeline docking auxiliary device described in any one of claims 1 to 9; The method comprises the following steps: (1) Fix the support seat in the foundation pit with screws, lift the pipeline to the inner side of the fixing ring for support, rotate the multi-section arc block of the fixing ring to make it fit with the pipeline, and then the second connection block at the upper end of the fixing ring will also fit with it; after sliding the plug block to the two second connection blocks, insert the limit block into the limit groove of the second connection block for fixing; at this time, the sleeve rod on the fixing ring supports the cross bar, the stop block fits tightly with the inner wall of the foundation pit, and the support plate of the adjustment unit is not fixed to fit with the inner wall of the foundation pit; (2) Rotate the rotating hemisphere of the lifting unit, which drives the lifting screw to rotate synchronously, and the lifting screw drives the lifting sleeve rod, the direction adjustment unit and the fixed ring to rise synchronously, thereby adjusting the docking height of the supported pipe; (3) Turn the adjusting screw, the adjusting screw drives the sliding block to slide stably, the sliding block drives the slider to slide stably, and then the inclined rod drives the telescopic sleeve to extend, and the support plate abuts against the foundation pit. Since the rotating block of the direction adjustment unit can rotate, the direction of the pipe in the fixed ring can be pushed to adjust; (4) After the height, angle and direction of the butt ends of the adjacent pipes are adjusted, the rotating ring is rotated, and the first connection blocks at both ends of the rotating ring are fitted together. After the insert block is slid to the two first connection blocks, it is inserted into the limit grooves of the first connection block and the second connection block through the limit block for fixing; the screws on the support seat are removed, and the reinforcing screw rod is connected to the reinforcing rod after passing through the rotating ring on the adjacent pipe and the support groove on the rotating ring; the reinforcing screw rod is rotated, and the reinforcing screw rod drives the reinforcing rod to pull the butt ends of the adjacent pipes to fit closely together, thereby completing the butt connection of the adjacent pipes; In step (2), when there is a height difference in the land, the rotating hemisphere on one side of one of the pipes is rotated to make one end of the pipe on that side rise or droop, that is, the pipe is tilted to adapt to the environment with the height difference.

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