Pipeline construction equipment and method based on safety detection

Abstract

The invention belongs to the technical field of water conservancy pipeline construction equipment, and particularly relates to pipeline construction equipment and method based on safety detection. Comprising a base, sliding plates arranged on the two sides of the upper surface of the base in the length direction of the base, a guide limiting frame and a detection mechanism, linear guide rails are arranged on the upper surface of the base, linear sliding grooves are formed in the upper surfaces of the sliding plates, longitudinal supports are connected to the two sides of each linear sliding groove respectively, and a supporting block is detachably and fixedly connected between the longitudinal supports; the top end of the supporting block is an arc-shaped face, the detection mechanism comprises a first pipeline sealing mechanism and a second pipeline sealing mechanism which are arranged at the two ends of the base respectively, and the end, away from the end of the base, of one sliding plate is connected with a detection piece. According to the invention, the difficulty of pipeline butt joint construction is greatly reduced, the convenience and efficiency of construction are improved, the precision and connection quality of pipeline butt joint are ensured, the sealing performance of connection and the sealing performance of the pipelines can be detected after the pipelines are connected, and the use safety of the pipelines is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of water conservancy pipeline construction equipment, and particularly relates to a pipeline construction equipment and method based on safety detection. Background Technique

[0002] The installation of water conservancy pipelines involves the docking between adjacent pipelines, and the docked pipelines are connected by hot melting or welding. Due to the complex terrain at the construction site, usually the pipelines are pre-docked and fixed, and then hoisted to the installation position. Since the pipelines are relatively heavy, common docking means mostly rely on hoisting equipment. For example, the pipeline installation equipment based on BIM technology disclosed in the patent document with the application number CN202411342630 includes a hoisting mechanism detachably suspended from the tower crane hook. The hoisting mechanism includes two hoisting platforms. Electric hoists are installed inside both ends of the hoisting platform. A first rope is traction-driven outside the electric hoist. A second rope is detachably fixed below adjacent two first ropes. A plurality of steel balls are serially fixed outside one second rope. In the present invention, by observing whether the bubble of the spirit level on the traction rope is in the middle position, it is judged whether two pipelines are at the same position height, which is convenient for construction workers to quickly identify whether the pipeline is at the installation position. By respectively winding and releasing the first rope by two electric hoists, the second rope drives the steel balls to support to the gap position between the bottom of the pipeline and the bottom surface of the buried ditch, preventing the bottom of one end of the pipeline from being at a lower level, which causes the pipe joint position to tilt and generate shear force, and is beneficial to ensuring the safety of the pipe orifice after the pipeline is docked.

[0003] The defects of such technologies are as follows:

[0004] 1. Not only is the structure complex, but the operation is also cumbersome. When the hoisting equipment hoists the pipeline, the pipeline inevitably shakes. Therefore, it is extremely difficult to seek the docking of the pipeline during the hoisting process. Especially when it comes to the hot melting and welding of the pipeline, slight shaking will cause the hot melting or welding effect at the joint to be damaged.

[0005] 2. Although the docking of the pipeline can be completed, the quality of the pipeline connection cannot be detected. If the seal at the joint is insufficient, it is easy to cause water leakage, and it will consume a large amount of manpower and financial resources to repair the water leakage after it is found during the later use. Summary of the Invention

[0006] Aiming at the problems described in the prior art 1 and 2, the present invention discloses a pipeline construction equipment and method based on safety detection.

[0007] The beneficial effects are as follows: The structure of the present invention is simple and easy to use, greatly reducing the difficulty of pipeline docking construction, improving the convenience and construction efficiency of construction, ensuring the accuracy and connection quality of pipeline docking. At the same time, after the pipeline connection, the sealing performance of the connection and the pipeline itself can be detected to ensure the safe use of the pipeline and avoid the increase of labor and financial costs caused by subsequent rework. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a front view structural schematic diagram (removing the detection mechanism) of an embodiment of the present invention.

[0009] Figure 2 It is a top view structural schematic diagram of the base (removing the jacking cylinder and the support base) of an embodiment of the present invention.

[0010] Figure 3 It is a top view structural schematic diagram (removing the detection mechanism) of an embodiment of the present invention.

[0011] Figure 4 It is a top view structural schematic diagram (removing the detection mechanism) of the completed pipeline docking of an embodiment of the present invention.

[0012] Figure 5 It is a top view structural schematic diagram of another embodiment of the present invention provided with a detection mechanism.

[0013] Figure 6 It is a sectional view structural schematic diagram of the sealing plug of the pipeline sealing mechanism II of the present invention.

[0014] In the figure: 1 - base, 2 - sliding plate, 3 - longitudinal bracket, 4 - linear guide rail, 5 - first driving cylinder, 6 - linear sliding groove, 7 - support block, 71 - arc-shaped surface, 8 - connecting plate, 9 - bolt, 10 - reaction frame hoop, 11 - guide plate, 12 - second driving cylinder, 13 - pipeline, 131 - pipeline I, 132 - pipeline II, 14 - reinforcing rod, 15 - jacking cylinder, 16 - sealing plug, 161 - large diameter end, 162 - annular rubber pad, 163 - annular airbag; 164 - cavity, 17 - air inlet pipe, 171 - branch pipe, 18 - detection gas input pipe, 181 - pressure chamber, 182 - spray head, 19 - telescopic rod, 20 - gas sensor, 21 - sliding plate I, 22 - sliding plate II, 23 - support base, 24 - ventilation pipe, 25 - pressure gauge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following description is only for the preferred embodiments of the present invention and is not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

[0016] The following embodiments may be understood as individually expressing a part of a local structure or method of the present invention, or may be understood as a combination of the embodiments to explain the connotation of a larger structure or method of the present invention.

[0017] In the initial embodiment, the present invention is a pipeline construction equipment based on safety detection, such as Figure 1-6 As shown, it includes a base 1, sliding plates 2 arranged on both sides of the upper surface of the base 1 along the length direction of the base 1, a plurality of guide limit frames and a detection mechanism arranged on the upper surface of the sliding plate 2 along the width direction of the sliding plate 2. The upper surface of the base 1 is provided with a plurality of linear guide rails 4 along the length direction, and the lower end of the sliding plate 2 is slidably connected to the linear guide rail 4. The upper surface of the sliding plate 2 is provided with a linear slide groove 6 along the width direction. The two sides of the linear slide groove 6 are slidably connected with longitudinal brackets 3, and the tops of the two longitudinal brackets 3 are respectively provided with guide plates 11 inclined outward. The two groups of longitudinal brackets 3 and the guide plates 11 arranged opposite to each other jointly constitute a guide limit frame. A support block 7 is detachably and fixedly connected between the two oppositely arranged longitudinal brackets 3. The top of the support block 7 is an arc-shaped surface, and the size of the arc-shaped surface matches the outer diameter of the pipe to be connected. The detection mechanism includes a pipe sealing mechanism 1 and a pipe sealing mechanism 2 respectively arranged at both ends of the base 1, and a detection member is connected to one end of one sliding plate 2 away from the end of the base 1.

[0018] In a further embodiment, Figure 2 As shown, the base 1 is a rectangular plate structure, and the sliding plate 2 includes a sliding plate 1 21 and a sliding plate 22 which are arranged opposite to each other. Figure 3 As shown, two or more sets of guide limit frames are respectively provided on the sliding plate 1 21 and the sliding plate 2 22, the arc-shaped surfaces 71 at the top of the support blocks 7 inside the two or more sets of guide limit frames are coplanar and coaxial, and reinforcing rods 14 are connected between adjacent longitudinal brackets.

[0019] In a further embodiment, Figure 1 , 3 As shown, connecting plates 8 are respectively provided at both ends of the support block 7, and the connecting plates 8 are fixedly connected to the inner wall of the longitudinal bracket 3 by bolts 9. The support block 7 has various models according to the difference in the outer diameter of the pipeline.

[0020] In a further embodiment, Figure 1 , 4 As shown, the pipeline is also equipped with a reaction frame clamp 10, which is fixedly connected to the outer surface of the pipeline and locked by a bolt and nut assembly. The reaction frame clamp has the same structure as the clamp in the prior art. By being locked on the outer surface of the pipeline, it has a certain degree of friction with the pipeline, thereby driving the pipeline to move when subjected to force.

[0021] In a further embodiment,Figure 1 , 3 As shown in FIGS. 3 and 4, on the upper surface of the sliding plate 2 and on both sides of the guiding and limiting frame, a plurality of first driving cylinders 5 are respectively provided. The first driving cylinders 5 on both sides are opposite to each other one by one. The fixed end of the first driving cylinder 5 is fixedly connected to the upper end of the sliding plate 2, and the telescopic end is fixedly connected to the outer wall of the longitudinal bracket 3 and is used to drive the longitudinal bracket 3 to move along the linear chute 6.

[0022] In a further embodiment, as Figure 1 , 3 As shown in FIGS. 3 and 4, at both ends of the upper surface of the base 1, second driving cylinders 12 are respectively provided. The fixed end of the second driving cylinder 12 is fixedly connected to the upper end of the base 1, and the telescopic end is fixedly connected to the outer side end of the first sliding plate 21 or the second sliding plate 22 and is used to drive the first sliding plate 21 or the second sliding plate 22 to move along the linear guide rail 4.

[0023] In a further embodiment, as Figure 5 , 6 shown, both the first pipeline sealing mechanism and the second pipeline sealing mechanism include a pushing cylinder 15 and a sealing plug 16. At the bottom end of the pushing cylinder 15, an adjustable height support seat 23 is provided (the simplest implementation method is to set a hydraulic cylinder at the bottom of the seat plate). The fixed end of the pushing cylinder 15 is fixedly connected to the top of the support seat 23, and the telescopic end is fixedly connected to the middle of the outer side end of the sealing plug 16. The sealing plug 16 is of a stepped pipe structure. An annular rubber pad 162 is provided on the inner surface of the large-diameter end 161, and a plurality of annular air bags 163 are equally spaced on the outer surface of the small-diameter end. A cavity 164 is provided inside the small-diameter end. An air inlet pipe 17 communicating with the outer surface of the large-diameter end 161 is provided inside the cavity 164. The air inlet pipe 17 is respectively connected to each annular air bag through a branch pipe 171. Each branch pipe 171 is provided with an electromagnetic valve. The outer side end of the air inlet pipe 17 is connected to an air pump (not shown in the figure). The air inlet pipe can be configured with a flow sensor. By setting a control circuit, after detecting a certain flow rate, the corresponding electromagnetic valve is closed, and another adjacent electromagnetic valve is opened, so as to ensure that the annular air bags are fully inflated and ensure the sealing effect through multiple annular air bags.

[0024] In a further embodiment, as Figure 5 , 6 shown, the first pipeline sealing mechanism further includes a ventilation pipe 24 penetrating through the inner and outer surfaces of the sealing plug. The outer side end of the ventilation pipe 24 is connected to a pressure gauge 25; the second pipeline sealing mechanism is further provided with a detection gas input pipe 18 for introducing detection gas. The detection gas input pipe 18 penetrates through the inner and outer surfaces of the sealing plug. The outer side end of the detection gas input pipe 18 is connected to a pressure tank (not shown in the figure) for inputting detection gas.

[0025] In a further embodiment, as Figure 5, 6 As shown, the gas to be detected is carbon dioxide. The detecting member includes a plurality of telescopic rods 19 connected to the longitudinal bracket 3. The end of the telescopic rod 19 is connected to a gas sensor 20 for identifying the gas type. The gas sensor 20 is a carbon dioxide sensor. The carbon dioxide sensor is close to the gap between two butted and connected pipes, as Figure 5 shown. After the carbon dioxide in the pressure tank is decompressed and released into the detection gas input pipe 18, the carbon dioxide concentration in the first pipe and the second pipe will increase rapidly. If there is air leakage at the joint, the carbon dioxide sensor can quickly detect it, thus realizing safety detection. The small-diameter end of the sealing plug of the pipe sealing mechanism II is embedded with a pressure chamber 181. The pressure chamber 181 is connected to a spray head 182 through a connecting pipe. There are several spray heads 182 arranged in an array on the inner end face of the sealing plug. The pressure chamber is connected to the detection gas input pipe 18. The purpose of such a design is to make the carbon dioxide have the power to flow towards the joint. By pressurizing the spray head 182, if there is a leak at the joint, the signal can be quickly detected.

[0026] Based on the above embodiments, this embodiment discloses a construction method of a pipeline construction device based on safety detection, as Figure 1-6 shown, including the following steps:

[0027] Step 1: According to the outer diameters of the first pipe and the second pipe to be butted, start the first driving cylinder 5 to make the distance between the relatively arranged longitudinal brackets 3 match the outer diameters of the first pipe and the second pipe. Install a support block 7 between the opposite longitudinal brackets 3. The arc-shaped surface of the support block just limits the first pipe and the second pipe. Lift the first pipe and the second pipe respectively to the upper part of the first sliding plate 21 or the second sliding plate 22 through a lifting device, and guide and lap on the arc-shaped surface 71 at the top of the support block 7 through a guiding and limiting frame, and make the male joint or the female joint of the first pipe and the second pipe extend out of the innermost guiding and limiting frame by a set length, so as to realize the full butt joint of the male joint and the female joint when the sliding plate is pushed;

[0028] Step 2: Install the reaction frame hoops 10 on the first pipe and the second pipe respectively, and lock them through bolt and nut assemblies to ensure that there is sufficient friction between the reaction frame hoops 10 and the surface of the first pipe or the second pipe, so that the longitudinal bracket 3 can push the reaction frame hoops 10 to drive the first pipe or the second pipe to move. The reaction frame hoops 10 should abut against the outer surface of the adjacent longitudinal bracket 3 on the outer side (the side facing the end of the base);

[0029] Step 3. If the male connector and the female connector need to be heat-melted, start the second driving cylinders 12 on both sides to make the male connector and the female connector approach until the use distance of the heat-melting tool is satisfied. After heat-melting, remove the heat-melting tool, and start the second driving cylinders 12 again to make the male connector and the female connector inserted in place. If the male connector and the female connector need to be welded, directly start the second driving cylinders 12 to make the male connector and the female connector dock in place, and then perform welding.

[0030] Step 4. After the first pipe and the second pipe are fixedly connected by heat-melting or welding, adjust the height of the support base 23 to the set position, start the pushing cylinder 15, insert the sealing plugs into the outer ends of the first pipe or the second pipe respectively, start the air pump to make each annular airbag 163 expand and seal the space between the outer surface of the small-diameter end and the inner surface of the first pipe or the second pipe. At the same time, the second driving cylinder presses the sealing plug tightly, and seals the outer port of the first pipe or the second pipe through the annular rubber pad 162.

[0031] Step 5. Open the valve of the pressure tank to introduce carbon dioxide gas into the interconnected first pipe and second pipe, and close the valve when the pressure gauge reaches the set value.

[0032] Step 6. Observe the change of the pressure value, and detect the change of the carbon dioxide concentration through multiple carbon dioxide sensors arranged at the joint of the first pipe and the second pipe. When the concentration of carbon dioxide rises to the set value (which can be set according to the actual situation, based on the value of the carbon dioxide sensor when the valve is opened as the base value, and the rising difference reaches the set value) and when the pressure gauge value drops to the set value (which can be set as needed, usually the dropping difference from the initial pressure gauge value when the valve is closed reaches the set value), it means that the seal at the joint is unqualified and the interface needs to be processed again. When only the pressure gauge value drops and the carbon dioxide sensor does not detect the change of the carbon dioxide concentration, it is considered the possibility of leakage including the sealing plug outside the joint position, and targeted inspection is carried out. Although the sealing plug has multiple sealing designs, there is still a very small possibility of leakage. Therefore, other parts of the pipe should be checked for leakage first, and then the sealing plug should be checked.

[0033] Step 7. Hoist the qualified first pipe and second pipe that are docked and connected into shape to the installation position.

[0034] Through the above settings, the present invention greatly reduces the difficulty of pipeline docking construction, improves the construction convenience and construction efficiency. At the same time, after the pipeline is connected, the sealing performance of the connection and the pipeline itself can be detected to ensure the safe use of the pipeline and avoid the increase of labor and financial costs caused by subsequent rework.

Claims

The top ends of the two guide rails are provided with a plurality of guide rails, and the guide rails are slidably connected to the two guide rails.

2. The pipeline construction equipment based on safety detection according to claim 1 is characterized in that: The base is a rectangular plate structure, and the sliding plate includes sliding plate 1 and sliding plate 2 which are arranged opposite to each other. Two or more sets of guide limit frames are respectively provided on sliding plate 1 and sliding plate 2. The arc-shaped surfaces at the top of the supporting blocks on the inner sides of the two or more sets of guide limit frames are coplanar and coaxial, and reinforcing rods are connected between adjacent longitudinal brackets.

3. The pipeline construction equipment based on safety detection according to claim 2 is characterized in that: The two ends of the support block are respectively provided with connecting plates, and the connecting plates are fixedly connected to the inner wall of the longitudinal bracket by bolts.

4. The pipeline construction equipment based on safety detection according to claim 3 is characterized in that: The pipeline is also equipped with a reaction frame clamp, which is fixedly connected to the outer surface of the pipeline and locked by a bolt and nut assembly.

5. The pipeline construction equipment based on safety detection according to claim 4 is characterized in that: A plurality of first driving cylinders are respectively provided on the upper surface of the sliding plate and on both sides of the guide limit frame. The first driving cylinders on both sides are opposite to each other. The fixed end of the first driving cylinder is fixedly connected to the upper end of the sliding plate, and the telescopic end is fixedly connected to the outer wall of the longitudinal bracket, and is used to drive the longitudinal bracket to move along the linear slide groove.

6. The pipeline construction equipment based on safety detection according to claim 5 is characterized in that: A second driving cylinder is respectively provided at both ends of the upper surface of the base, the fixed end of the second driving cylinder is fixedly connected to the upper end of the base, and the telescopic end is fixedly connected to the outer end of sliding plate one or sliding plate two, and is used to drive sliding plate one or sliding plate two to move along the linear guide rail.

7. The pipeline construction equipment based on safety detection according to claim 6 is characterized in that: The pipeline sealing mechanism 1 and the pipeline sealing mechanism 2 both include a pushing cylinder and a sealing plug. The bottom end of the pushing cylinder is provided with an adjustable height support seat, the fixed end of the pushing cylinder is fixedly connected to the top of the support seat, and the telescopic end is fixedly connected to the middle of the outer end of the sealing plug. The sealing plug is a stepped tube structure, the inner surface of the large diameter end is provided with an annular rubber pad, and the outer surface of the small diameter end is evenly distributed with a number of annular air bags. A cavity is provided inside the small diameter end, and an air intake pipe connected to the outer surface of the large diameter end is provided in the cavity. The air intake pipe is connected to each annular air bag through a branch pipe, and each branch pipe is provided with an electromagnetic valve. The outer end of the air intake pipe is connected to an air pump, and the air intake pipe is configured with a flow sensor. By setting a control circuit, the corresponding electromagnetic valve is closed after detecting that a certain flow rate is reached, and another adjacent electromagnetic valve is opened, so as to ensure that the annular air bag is fully expanded, and the sealing effect is ensured by multiple annular air bags.

8. The pipeline construction equipment based on safety detection according to claim 7 is characterized in that: The first pipeline sealing mechanism also includes a ventilation pipe that passes through the inner and outer surfaces of the sealing plug, and the outer end of the ventilation pipe is connected to a pressure gauge; the second pipeline sealing mechanism is also provided with a detection gas input pipe for passing the detection gas, and the detection gas input pipe passes through the inner and outer surfaces of the sealing plug, and the outer end of the detection gas input pipe is connected to a pressure tank for inputting the detection gas.

9. The pipeline construction equipment based on safety detection according to claim 8 is characterized in that: The detection gas is carbon dioxide. The detection component includes a plurality of telescopic rods connected to the longitudinal bracket. The ends of the telescopic rods are connected to gas sensors for identifying the types of gas. The carbon dioxide sensor is close to the gap between two butted and connected pipes. A pressure chamber is embedded in the small-diameter end of the sealing plug of the pipe sealing mechanism 2. The pressure chamber is connected to a nozzle through a connecting pipe. There are several nozzles arranged in an array on the inner end surface of the sealing plug. The pressure chamber is connected to the detection gas input pipe.

10. A construction method for pipeline construction equipment based on safety detection according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: according to the outer diameters of the pipes 1 and 2 to be connected, start the first driving cylinder to make the spacing between the relatively arranged longitudinal brackets match the outer diameters of the pipes 1 and 2, install the support block between the relatively arranged longitudinal brackets, and the arc surface of the support block just limits the pipes 1 and 2; respectively lift the pipes 1 and 2 to the top of the sliding plate 1 or the sliding plate 2 by the lifting equipment, overlap the arc surface of the top of the support block by the guide of the guide limit frame, and make the male joint or female joint of the pipes 1 and 2 extend out of the set length of the innermost guide limit frame, so as to achieve full connection between the male joint and the female joint when the sliding plate is pushed to move; Step 2: Install the reaction frame clamp on pipe 1 and pipe 2 respectively, and tighten them with bolt and nut assemblies to ensure that there is sufficient friction between the reaction frame clamp and the surface of pipe 1 or pipe 2, so that the longitudinal bracket can push the reaction frame clamp to drive pipe 1 or pipe 2 to move, and the reaction frame clamp should be against the outer surface of the adjacent longitudinal bracket on the outside; Step 3: If the male connector and the female connector need to be hot-melted, start the second driving cylinders on both sides to bring the male connector and the female connector closer together until they meet the use distance of the hot-melt tool. After hot-melting, remove the hot-melt tool and start the second driving cylinder again to plug the male connector and the female connector into place. If the male connector and the female connector need to be welded, directly start the second driving cylinder to dock the male connector and the female connector into place, and then weld them. Step 4: After pipe 1 and pipe 2 are connected and fixed by hot melting or welding, adjust the height of the support seat to the set position, start the push cylinder, insert the sealing plug into the outer end of pipe 1 or pipe 2 respectively, start the air pump, expand each annular airbag and seal the outer surface of the small diameter end with the inner surface of pipe 1 or pipe 2; at the same time, the second driving cylinder presses the sealing plug, and the outer port of pipe 1 or pipe 2 is pressed by the annular rubber pad to achieve sealing; Step 5: Open the valve of the pressure tank and introduce carbon dioxide gas into the interconnected pipes 1 and 2, and close the valve when the pressure reaches the set value; Step 6. Observe the change of pressure value, and detect the change of carbon dioxide concentration through multiple carbon dioxide sensors installed at the joints of pipelines 1 and 2. When the concentration of carbon dioxide rises to the set value and when the pressure gauge value drops to the set value, it means that the seal at the joint is unqualified and the interface needs to be reprocessed; when only the pressure gauge value drops and the carbon dioxide sensor cannot detect the change of carbon dioxide concentration, consider the possibility of leakage outside the joint position including the sealing plug, and conduct targeted inspections; although the sealing plug has undergone multiple sealing designs, there is still a small possibility of leakage, so you should first check whether there is leakage in other parts of the pipeline, and then check the sealing plug; Step 7: Lift the qualified butt-jointed and connected pipes 1 and 2 to the installation location.

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