Submarine pipeline laying device

Abstract

The invention discloses a submarine pipeline laying device, and belongs to the technical field of submarine pipeline laying, the submarine pipeline laying device comprises a sand box, a mixed fluid pressurization conveying assembly and a vibration transmission assembly, the bottom of the sand box is provided with a slag outlet pipe, the outer surface of the slag outlet pipe is connected with a slag slurry pump, a pipeline is installed in a submarine groove, and the upper surface of the pipeline is movably connected with a pipe bag; through mutual cooperation of the water reducing agent tank, the water reducing agent pipe, the flow meter, the flocculant tank, the flocculant pipe and the water pump II, a water reducing agent and a flocculant can be accurately conveyed into the sand box, the flowability of the water reducing agent and the flocculant is ensured, and a mixture of seawater, coarse sand, the flocculant and the water reducing agent can be pumped into the pipe bag through the slurry pump; the flowing and impact of the liquid can drive the tube bag to vibrate, and then drive the vibration rod, the vibration piece, the vibration ball and the non-Newtonian fluid balls in the hole grooves to vibrate, so that the vibration of the tube bag is accelerated, the mixture is prevented from caking, and all corners of the tube bag are uniformly filled with the mixture.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine pipeline laying, and more particularly to a submarine pipeline laying device. Background Art

[0002] Submarine pipeline laying equipment is a device and technology specially designed for installing and laying pipelines on the seabed. Usually, a trench is first opened on the seabed surface. After the trench is opened, the pipeline is laid in it and fixed in the seawater by throwing sand bags or using pipe bags to ensure its stability.

[0003] When using the existing submarine pipeline laying device, the pipeline is usually first installed in the submarine trench through the laying device, and then the delivery pipe is placed in the seawater. The seawater is pumped into the sand box by a water pump, and coarse sand is added to the sand box. The hose is connected to the pipe bag. Then, after the slurry pump is turned on, the sand inside the sand box is fully mixed with the seawater. The mortar is pumped into the pipe bag fixed on the seabed through the hose connected to the sand outlet. The fluidity of the coarse sand during filling is used to fill the area around the pipeline densely, forming a vertical protection for the submarine pipeline.

[0004] In actual use of the existing technology, since the sand and gravel mixture is pumped into the pipe bag by the pressure of the slurry pump, the pressure is easily dissipated due to the complex seabed environment, making it difficult to evenly distribute the mixture and the pipe bag cannot be completely filled, resulting in incomplete filling or local loose areas. At the same time, the fluidity of the mixture is poor, and it is easy to get blocked or difficult to transport during the transportation process, affecting the effective support of the pipe bag to the pipeline, thereby reducing the stability and safety of the overall structure.

[0005] Therefore, in order to solve the above technical problems, it is necessary to provide a submarine pipeline laying device. Summary of the Invention

[0006] The object of the present invention is to provide a submarine pipeline laying device to solve the above-mentioned problems.

[0007] In order to achieve the above-mentioned objectives, the technical solution provided by the present invention is as follows: A submarine pipeline laying device includes a sand box, a mixed fluid pressurized conveying assembly and a vibration transmission assembly, the bottom of the sand box is fixedly connected to a plurality of support legs, the sides of the support legs are fixedly connected to support plates, a slag discharge pipe is installed at the bottom of the sand box, the outer surface of the slag discharge pipe is connected to a slurry pump, a pipeline is installed in the submarine trench, and a pipe bag is movably connected to the upper surface of the pipe; the mixed fluid pressurized conveying assembly is installed inside the sand box, the mixed fluid pressurized conveying assembly includes a water reducer tank and a flocculant tank installed on the upper surface of the sand box through a plurality of connecting rods, the interiors of the water reducer tank and the flocculant tank are respectively connected to a water reducer pipe and a flocculant pipe; the vibration transmission assembly is installed inside the pipe bag, the vibration transmission assembly includes a fixed grid fixedly installed inside the pipe bag, a plurality of vibration balls are fixedly connected between the pipe bag and the fixed grid, and a plurality of holes are opened inside the vibration balls.

[0008] As a further improvement of the present invention, the vibration transmission component includes a vibration rod fixedly mounted on the outer surface of the tube bag, the vibration rod and the interior of the vibration ball are connected, a non-Newtonian fluid ball is installed inside the hole groove, a plurality of vibration plates are fixedly connected to the outer surface of the non-Newtonian fluid ball, a protective film is installed on the outer surface of the vibration plate, the interior of the non-Newtonian fluid ball is filled with non-Newtonian fluid, and the protective film is made of flexible packaging material. The vibration rod receives the impact force when the mixture is injected into the tube bag and transmits vibration, thereby causing the viscosity of the non-Newtonian fluid ball to increase under vibration, generating local rigidity and improving the vibration transmission efficiency. At the same time, the protective film can protect the vibration plate and the non-Newtonian fluid ball to prevent the mixture in the tube bag from entering.

[0009] As a further improvement of the present invention, the vibration transmission assembly includes two slide rails fixedly installed inside the vibration rod, and a slider is slidably connected inside the slide rails. A spring is fixedly connected between the slide rails and the slider. When the seabed water current is strong, the vibration drives the touch ball and the touch rod to move into the vibration rod. When the touch rod moves, it drives the slider to slide in the slide rail and compress the spring to achieve buffering and energy absorption, thereby reducing the damage of high-frequency vibration to the pipeline and pipe bag.

[0010] As a further improvement of the present invention, a trigger rod is inserted into the interior of the vibration rod, and a seal is installed on the outer surface of the trigger rod. The seal includes a lip seal ring fixedly connected between the trigger ball and the tube bag. One end of the trigger rod is connected to a touch plate, and the touch plate is arc-shaped. A silicone pad is fixedly connected to the outer surface of the touch plate. The trigger rod moves with the water flow, and the non-Newtonian fluid ball is linked to work, and the lip seal ring is used to prevent seawater leakage.

[0011] As a further improvement of the present invention, a waterproof cover is installed on the outer surface of the lip sealing ring. The lip sealing ring is made of waterproof sealing material, and the waterproof cover is made of waterproof material. The waterproof cover can play a protective role in isolating corrosion and wear.

[0012] As a further improvement of the present invention, the vibration transmission component also includes an elastic member fixedly installed between the vibration rod and the tube bag, the elastic member includes a soft sleeve fixedly installed between the vibration rod and the tube bag, a hard pad is fixedly installed inside the soft sleeve, and the soft sleeve is made of elastic material. The mutual cooperation between the hard pad and the soft sleeve ensures that the vibration plate swings, thereby.

[0013] As a further improvement of the present invention, a feed pipe is installed on the upper surface of the sand box, and one end of the water reducer pipe and the flocculant pipe abuts against the inner cavity of the feed pipe to ensure that the flocculant and water reducer are accurately delivered to the feed pipe.

[0014] As a further improvement of the present invention, the outer surfaces of the water reducer tube and the flocculant tube are respectively installed with a water pump 2 and a flow meter, the upper surface of the sand box is connected to a driving motor through an L-plate, the output shaft end of the driving motor is fixedly connected to a driving rod, one end of the driving rod can be rotatably inserted into the inner cavity of the sand box and is fixedly connected to a plurality of stirring rods, the mutual cooperation of the water pump 2 and the flow meter ensures that the flocculant and the water reducer are transported in a precise proportion, the driving motor drives the stirring rod to rotate at a high speed, so that the coarse sand, seawater and additives are fully integrated, thereby improving the mixing efficiency and quality.

[0015] As a further improvement of the present invention, the upper surface of the support plate is connected to the slurry pump by bolts, a hose is installed on the outer surface of the slag discharge pipe, a delivery pipe is installed inside the sand box, and a water pump 1 is fixedly connected to the outer surface of the delivery pipe. Seawater is pumped by the water pump 1, and the slurry pump pressurizes and delivers the mixture for the second time to ensure delivery continuity and pressure stability.

[0016] As a further improvement of the present invention, one end of the hose is connected to the tube bag, a mounting plate is installed on the outer surface of the tube bag, a plurality of mounting holes are opened inside the mounting plate, a positioning rod is installed inside the mounting hole, the positioning rod is connected to the seabed trench, and the positioning rod is inserted into the seabed trench to ensure the accurate position of the tube bag.

[0017] Compared with the existing technology, the advantages of the present invention are: (1) This solution uses a laying device to accurately embed the pipeline into the seabed groove, and uses a positioning rod to accurately cover the pipe bag on the pipeline, ensuring the accurate position of the pipeline, avoiding the problem of uneven water flow impact or incomplete coverage of the pipe bag due to pipeline deviation, preventing the mixture from leaking, ensuring that the filling in the pipe bag evenly wraps the pipeline, forming an effective protective layer, and reducing the direct erosion of seawater on the pipeline.

[0018] (2) The water reducer tank, water reducer pipe, flow meter, flocculant tank, flocculant pipe and water pump can cooperate with each other to accurately deliver the water reducer and flocculant to the sand box. The water reducer forms a negative charge layer or hydration film on the surface of the coarse sand particles, reduces the van der Waals force between the particles, prevents agglomeration, and ensures its fluidity, avoids flocculant dilution or coarse sand sedimentation due to excessive water, and accelerates the separation of water in the mixture, so that the coarse sand forms a dense structure faster and reduces the moisture content after the tube bag is filled. At the same time, the electric drive rod and the stirring rod cooperate with each other to ensure that the water reducer, flocculant, coarse sand and seawater are fully mixed, and ensure that the mixture is evenly delivered to the tube bag through the hose. The mixture can be mixed again by the slurry pump to ensure that it is mixed evenly and improve its fluidity.

[0019] (3) The mixture of seawater, coarse sand, flocculant and water reducer can be pumped into the tube bag through the slurry pump. The flow and impact of the liquid will drive the tube bag to vibrate, and then drive the vibration rod, vibration plate, vibration ball and non-Newtonian fluid ball in the hole groove to vibrate, thereby accelerating the vibration of the tube bag, so that the coarse sand, seawater, water reducer and flocculant entering the tube bag are fully mixed, avoiding the mixture from agglomerating, ensuring that the mixture is evenly filled in every corner of the tube bag, thereby improving the filling efficiency. At the same time, the vibration of the non-Newtonian fluid ball helps to destroy the bubbles in the mixture, reduce the gaps, and make the coarse sand particles more closely arranged, thereby improving the density and stability of the tube bag, forming a more effective protective layer, and improving the stability of the tube bag by fixing the grid.

[0020] (4) When the seabed water flow rate is too fast, the touch ball and the touch rod will drive the touch plate to move downward so as to transmit its vibration to the non-Newtonian fluid ball, thereby causing the non-Newtonian fluid ball to harden instantly, alleviating the vibration of the tube bag, protecting the internal pipeline from external impact, and reducing the fatigue damage of the tube bag material caused by vibration. At the same time, when the touch rod moves, it will drive the slider to move along the slide rail and drive the spring to compress. When its vibration force is transmitted to the non-Newtonian fluid, the vibration force is dissipated, and the touch plate and the touch rod are driven to reset by the elasticity of the spring. The lip seal ring and the waterproof cover between the touch rod and the tube bag can improve the sealing between the touch rod and the vibration rod to prevent seawater from penetrating.

[0021] (5) At the same time, the hardening of the non-Newtonian fluid sphere cooperates with the fixed grid to form a rigid skeleton, which prevents the tube bag from stretching or twisting due to water drag, improves the tube bag's ability to resist deformation, and hardens under vibration, further limiting the redistribution of coarse sand. The coarse sand in the tube bag tends to be tightly arranged under the action of vibration, forming a "rigid filling layer", and the hardening of the non-Newtonian fluid sphere further limits the redistribution of coarse sand, forming a "flexible buffer layer". The combination of the two improves the firmness of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the present invention as a whole.

[0023] Figure 2 It is a partial structural cross-sectional view of the present invention as a whole.

[0024] Figure 3 It is a structural side view of the sand box of the present invention.

[0025] Figure 4 It is a partial structural sectional view of the sand box of the present invention.

[0026] Figure 5 For the present invention Figure 4 A magnified view of the structure at point A.

[0027] Figure 6 This is a partial structural cross-sectional view of the contact between the touch plate and the hole groove of the present invention.

[0028] Figure 7 For the present invention Figure 6 A magnified view of the structure at point B.

[0029] Figure 8 It is a partial structural cross-sectional view of the vibration transmission component of the present invention.

[0030] Figure 9 For the present invention Figure 8 Enlarged view of the structure at point C in the middle.

[0031] Explanation of reference numerals in the figure: 1. Sand box; 101. Support leg; 102. Slurry pump; 103. Slag discharge pipe; 1031. Rubber hose; 1032. Pipe bag; 1033. Mounting plate; 1034. Positioning rod; 104. Delivery pipe; 105. Water pump 1; 106. Pipeline; 2. Mixed fluid pressurized delivery assembly; 201. Water reducer tank; 202. Water reducer pipe; 203. Flocculant tank; 204. Flocculant pipe; 205. Flow meter; 206. Water pump 2; 207. Drive motor; 2071. Drive rod; 2072. Stirring rod; 208. Feed pipe; 3. Vibration transmission component; 301. Fixed grid; 302. Vibrating ball; 303. Hole groove; 304. Non-Newtonian fluid ball; 305. Vibrating plate; 306. Protective film; 307. Vibrating rod; 308. Touch rod; 309. Touch ball; 310. Elastic part; 3101. Hard pad; 3102. Soft cover; 311. Touch plate; 3111. Silicone pad; 312. Slide rail; 3121. Slider; 3122. Spring; 313. Seal; 3131. Lip seal; 3132. Waterproof cover. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Example 1: Please refer to Figures 1-9 A submarine pipeline laying device includes a sand box 1, a mixed fluid pressurized conveying component 2 and a vibration transmission component 3. The bottom of the sand box 1 is fixedly connected to a plurality of support legs 101, and the sides of the support legs 101 are fixedly connected to support plates. A slag discharge pipe 103 is installed at the bottom of the sand box 1, and the outer surface of the slag discharge pipe 103 is connected to a slurry pump 102. A pipeline 106 is installed in the submarine trench, and a pipe bag 1032 is movably connected to the upper surface of the pipeline 106.

[0034] Specifically, the mixed fluid pressurized delivery assembly 2 is installed inside the sand box 1. The mixed fluid pressurized delivery assembly 2 includes a water reducer tank 201 and a flocculant tank 203 installed on the upper surface of the sand box 1 through a plurality of connecting rods. The water reducer tank 201 and the flocculant tank 203 are respectively connected to a water reducer pipe 202 and a flocculant pipe 204. The water reducer is a concrete admixture mainly used to reduce the amount of water required in concrete or mortar while maintaining its fluidity. It changes the electrostatic repulsion between cement particles or produces a steric hindrance effect, so that Cement particles can be more evenly dispersed in water, thereby reducing water consumption and improving the working performance of the slurry. The fluidity of the mixture of coarse sand, seawater, water reducer and flocculant can be enhanced by using a water reducer. A flocculant is a chemical agent used to promote the aggregation of suspended particles. It aggregates small particles into larger flocs through mechanisms such as charge neutralization, bridging or netting, making it easier for these particles to be separated from the liquid. The flocculant can neutralize the negative charge on the surface of the coarse sand particles, reducing the electrostatic repulsion between the particles, making it easier for them to approach each other and combine.

[0035] A water pump 206 and a flow meter 205 are installed on the outer surfaces of the water reducer tube 202 and the flocculant tube 204 respectively. The flow meter 205 is an instrument for measuring the flow of fluid (liquid or gas). It can monitor the flow of the fluid in the water reducer tube 202 and the flocculant tube 204 in real time. The flow of the water reducer and flocculant injected into the sand box 1 can be accurately known through the flow meter 205. A feed pipe 208 is installed on the upper surface of the sand box 1, and one end of the water reducer tube 202 and the flocculant tube 204 are in contact with the inner cavity of the feed pipe 208.

[0036] The upper surface of the sand box 1 is connected to the drive motor 207 through an L-plate, and the output shaft end of the drive motor 207 is fixedly connected to the drive rod 2071. One end of the drive rod 2071 can be rotatably inserted into the inner cavity of the sand box 1 and is fixedly connected to a plurality of stirring rods 2072. The upper surface of the support plate is connected to the slurry pump 102 by bolts. The slurry pump 102 is a pump specially designed for conveying liquids containing solid particles (such as mud, mortar, etc.). The mixed mixture of sand, seawater, water reducer and flocculant in the sand box 1 is sucked into the pump body through the slurry pump 102, and the mixture is mixed again through its strong high shear force and turbulence to ensure that the components are evenly distributed, further improving the stability and fluidity of the mixture.

[0037] A hose 1031 is installed on the outer surface of the slag discharge pipe 103, and a conveying pipe 104 is installed inside the sand box 1. The outer surface of the conveying pipe 104 is fixedly connected to a water pump 105. The water pump 105 and the water pump 206 are both mechanical equipment for lifting, conveying and pressurizing liquids. The water pump 105 pumps seawater from the outside to the inside of the sand box 1, and the water pump 206 respectively conveys the water reducer in the water reducer tank 201 and the flocculant in the flocculant tank 203 to the feed pipe 208 in a quantitative manner as needed, and mixes them with the coarse sand and seawater. One end of the hose 1031 is connected to the tube bag 1032. A mounting plate 1033 is installed on the outer surface of the tube bag 1032. A plurality of mounting holes are opened inside the mounting plate 1033. A positioning rod 1034 is installed inside the mounting hole. The positioning rod 1034 is connected to the seabed trench.

[0038] Furthermore, the water pump 206 on the surface of the water reducer pipe 202 and the flocculant pipe 204 is started to respectively transport the water reducer in the water reducer tank 201 to the feed pipe 208 through the water reducer pipe 202, and at the same time transport the flocculant in the flocculant tank 203 to the feed pipe 208 through the flocculant pipe 204, and monitor the additive flow in real time through the flow meter 205. At the same time, the driving motor 207 is started to drive the driving rod 2071 to rotate. When the driving rod 2071 rotates, it drives the stirring rod 2071 to rotate. 072 The coarse sand, seawater, water reducer and flocculant are fully mixed and stirred so that the surface of the coarse sand particles is evenly covered with a hydration film formed by the water reducer, thereby effectively reducing the friction resistance between the particles and improving the overall flow properties of the mortar. Subsequently, the slurry pump 102 is started to suck the mixed sand, seawater, water reducer and flocculant mixture in the sand box 1 into the slurry pump 102. The mixture is mixed again by the high shear force and turbulence of the slurry pump 102 to ensure that the components are evenly distributed.

[0039] Example 2: Reference Figures 1-9 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment, and the vibration transmission component 3 is installed inside the tube bag 1032.

[0040] Specifically, the vibration transmission component 3 includes a fixed grid 301 fixedly mounted inside the tube bag 1032, a plurality of vibration balls 302 are fixedly connected between the tube bag 1032 and the fixed grid 301, a plurality of holes 303 are opened inside the vibration balls 302, and the vibration transmission component 3 includes a vibration rod 307 fixedly mounted on the outer surface of the tube bag 1032, the vibration rod 307 is connected to the interior of the vibration ball 302, a non-Newtonian fluid ball 304 is installed inside the hole 303, and a plurality of vibration plates 304 are fixedly connected to the outer surface of the non-Newtonian fluid ball 304. 05. The vibration plate 305 is a thin sheet of elastic element, usually made of metal or composite materials. It can deform when vibrated and transfer vibration energy to adjacent components. During the vibration process, the vibration energy can be effectively transferred to the non-Newtonian fluid ball 304 through the vibration plate 305, thereby increasing the viscosity of the non-Newtonian fluid and enhancing the vibration effect. At the same time, the vibration plate 305 can evenly distribute the vibration energy inside the tube bag 1032, ensuring that the coarse sand particles can be fully mixed and tightly arranged to avoid gaps or local loose areas.

[0041] Non-Newtonian fluids refer to fluids that do not conform to Newton's law of viscosity. That is, their viscosity is not constant but depends on the applied shear stress or shear rate. Unlike Newtonian fluids (such as water and air), the viscosity of non-Newtonian fluids changes with changes in shear stress. When the non-Newtonian fluid sphere 304 is subjected to external vibration or impact, the non-Newtonian fluid will adjust its viscosity based on the change in shear stress. Under normal circumstances, it behaves as a low-viscosity liquid, allowing the vibration plate 305 to move freely. However, when subjected to rapid impact, the viscosity increases sharply, forming a rigid support and enhancing the vibration transmission effect. The non-Newtonian fluid can instantly transform from liquid to solid, providing immediate structural support, effectively alleviating the impact of external impact on the tube bag 1032, preventing structural damage caused by severe vibration, and prompting the vibration plate 305 to drive the non-Newtonian fluid in the non-Newtonian fluid sphere 304 to produce a greater vibration effect, ensuring that the coarse sand particles are fully mixed and tightly arranged in the tube bag 1032, avoiding the formation of gaps or localized loose areas.

[0042] A protective film 306 is installed on the outer surface of the vibration plate 305. The interior of the non-Newtonian fluid ball 304 is filled with non-Newtonian fluid. The protective film 306 is made of a flexible packaging material. The protective film 306 is usually made of a material with good flexibility and chemical resistance to ensure its reliability and durability in complex marine environments. The protective film 306 can effectively prevent coarse sand and other impurities in the mortar from entering the interior of the vibration ball 302, preventing these particles from causing wear or blockage on the non-Newtonian fluid ball 304 and the vibration plate 305. The protective film 306 can be replaced by a multi-layer composite film or a self-healing material. One end of the touch rod 308 is connected to a touch plate 311. The touch plate 311 is arc-shaped. The outer surface of the touch plate 311 is fixedly connected to a silicone pad 3111. The silicone pad 3111 is a gasket made of silicone rubber material with good elasticity and corrosion resistance. The silicone pad 3111 can buffer vibrations, absorb and disperse vibration energy, and reduce the impact on other components. The silicone pad 3111 can be replaced by a rubber pad or other materials.

[0043] The vibration transmission component 3 includes two slide rails 312 fixedly installed inside the vibration rod 307, and the slide rails 312 are slidably connected to the slider 3121 inside. A spring 3122 is fixedly connected between the slide rails 312 and the slider 3121. A touch rod 308 is inserted into the interior of the vibration rod 307, and a seal 313 is installed on the outer surface of the touch rod 308. The seal 313 includes a lip seal ring 3131 fixedly connected between the touch ball 309 and the tube bag 1032. A waterproof cover 3132 is installed on the outer surface of the lip seal ring 3131. The lip seal ring 3131 is made of waterproof sealing material, and the waterproof cover 3132 is made of waterproof material. The lip seal ring 3131 is a special shape. The shaped seal 313 usually has one or more outwardly curved "lips". These lips can fit tightly against the contact surface when under pressure to form an effective sealing barrier. The lip seal 3131 can ensure the sealing between the trigger rod 308 and the tube bag 1032, preventing seawater from penetrating the internal structure. The lip seal 3131 can be replaced by an O-ring or a V-ring. The waterproof cover 3132 is a protective layer covering the outside of the seal 313, used to further enhance the sealing performance and protect the internal components from the influence of the external environment, further preventing seawater and other pollutants from entering the vibration ball 302. It can be replaced by materials such as polyurethane, nitrile rubber or fluororubber.

[0044] The vibration transmission component 3 also includes an elastic member 310 fixedly installed between the vibration rod 307 and the tube bag 1032, and the elastic member 310 includes a soft sleeve 3102 fixedly installed between the vibration rod 307 and the tube bag 1032. A hard pad 3101 is fixedly installed inside the soft sleeve 3102. The soft sleeve 3102 is made of elastic material. The hard pad 3101 is a supporting element with high rigidity, usually made of metal or other high-strength materials, and is used to provide stable supporting force. During the vibration transmission process, the hard pad 3101 can provide the necessary rigid support to prevent the soft material from failing due to compression deformation and control the vibration rod. The displacement range of 307 can be reduced to avoid structural damage due to excessive swinging. It can be replaced by polyamide or polycarbonate materials, depending on the requirements of the application scenario. The soft sleeve 3102 is an elastic element, usually made of rubber or other highly elastic materials, used to absorb vibration energy and provide cushioning. When subjected to external shock or vibration, the soft sleeve 3102 can effectively absorb and disperse vibration energy, reduce the impact on other components, and allow the vibration rod 307 to swing flexibly within a certain range, thereby driving the normal operation of the entire vibration transmission system. The soft sleeve 3102 can be replaced by materials such as silicone rubber, chloroprene rubber and natural rubber.

[0045] Furthermore, when the mixture of coarse sand, seawater, water reducer and flocculant is injected into the pipe bag 1032 through the hose 1031 and the slurry pump 102, the flow and impact of the liquid will drive the pipe bag 1032 to vibrate. This vibration is first transmitted to the vibration rod 307, causing the vibration rod 307 to squeeze and shake between the two elastic members 310, thereby driving the vibration ball 302 to vibrate. The vibration of the vibration ball 302 is transmitted to the pipe bag 1032 and the vibration plate 305. The vibration plate 305 drives the viscosity of the non-Newtonian fluid in the non-Newtonian fluid ball 304 to increase, further enhancing the vibration effect of the pipe bag 1032. The vibration plate 305 drives the viscosity of the non-Newtonian fluid in the non-Newtonian fluid ball 304 to increase under vibration. , accelerate the vibration of the tube bag 1032, so that the coarse sand, seawater, water reducer and flocculant entering the tube bag 1032 are fully mixed, avoid caking of the mixture, and ensure that the mixture evenly fills every corner of the tube bag 1032; when the seabed water flow rate is too fast, the water flow produces a large impact force on the vibration rod 307 and the touch ball 309, so that the touch plate 311 transmits its force to the non-Newtonian fluid ball 304, so that the non-Newtonian fluid inside the non-Newtonian fluid ball 304 instantly hardens, thereby alleviating the vibration of the tube bag 1032, and through the hardening of the non-Newtonian fluid ball 304 and the mutual cooperation of the fixed grid 301, a rigid skeleton can be formed to prevent the tube bag 1032 from stretching or twisting due to the drag of the water flow.

[0046] The working principle of the present invention is as follows: first, the laying device is used to accurately lay the pipeline 106 in the groove opened at the bottom of the seabed to ensure that the position of the pipeline 106 is accurate, and then the pipe bag 1032 is covered on the pipeline 106 through the positioning rod 1034, and the hose 1031 is connected to the pipe bag 1032 to ensure its sealing. Then, the delivery pipe 104 is placed on the seabed, and then the water pump 105 is started to transport seawater into the sand box 1 through the delivery pipe 104, and at the same time, coarse sand is poured into the sand box 1 through the feed pipe 208. At the same time, the water pump 206 on the surface of the water reducer pipe 202 and the flocculant pipe 204 is started to transport the water reducer in the water reducer tank 201 into the feed pipe 208 through the water reducer pipe 202, and at the same time, the flocculant in the flocculant tank 203 is transported into the feed pipe 208 through the flocculant pipe 204. The flow rate of the additives is monitored in real time by the flow meter 205 to ensure accurate mixing ratio.

[0047] At the same time, the drive motor 207 is started to drive the drive rod 2071 to rotate. When the drive rod 2071 rotates, it will drive the stirring rod 2072 to fully mix and stir the coarse sand, seawater, water reducer and flocculant, so that the surface of the coarse sand particles is evenly covered with a hydration film formed by the water reducer, thereby effectively reducing the friction resistance between the particles and improving the overall flow properties of the mortar. At the same time, the flocculant is also quickly dispersed under the stirring action and reacts with the fine suspended particles in the mixed liquid, promoting the coagulation of the particles, accelerating the subsequent water separation process, and ensuring that the mixture can be evenly transported to the tube bag 1032 through the hose 1031.

[0048] Subsequently, the slurry pump 102 is started to suck the mixed mixture of sand, seawater, water reducer and flocculant in the sand box 1 into the slurry pump 102. The mixture is mixed again by the high shear force and turbulence of the slurry pump 102 to ensure that the components are evenly distributed, thereby further improving the stability and fluidity of the mixture.

[0049] When the mixture of coarse sand, seawater, water reducer and flocculant is injected into the pipe bag 1032 through the hose 1031 and the slurry pump 102, the flow and impact of the liquid will drive the pipe bag 1032 to vibrate. This vibration is first transmitted to the vibration rod 307, causing the vibration rod 307 to be squeezed and shaken between the two elastic parts 310. The elastic part 310 drives the vibration rod 307 to swing through the cooperation of the hard pad 3101 and the soft sleeve 3102, and then drives the vibration ball 302 to vibrate. The vibration of the vibration ball 302 The energy is transmitted to the tube bag 1032 and the vibration plate 305. The vibration plate 305 drives the viscosity of the non-Newtonian fluid in the non-Newtonian fluid ball 304 to increase, further enhancing the vibration effect of the tube bag 1032. The vibration plate 305 drives the viscosity of the non-Newtonian fluid in the non-Newtonian fluid ball 304 to increase under vibration, thereby accelerating the vibration of the tube bag 1032, so that the coarse sand, seawater, water reducer and flocculant entering the tube bag 1032 are fully mixed to avoid agglomeration of the mixture and ensure that the mixture evenly fills every corner of the tube bag 1032.

[0050] At the same time, vibration can make the coarse sand particles more evenly distributed in the tube bag 1032, thereby improving the density and stability of the tube bag 1032. The coarse sand particles rub and collide with each other under the action of vibration, which helps to fill the gaps in the tube bag 1032, forming a tighter structure, and destroying the bubbles in the mixture, thereby improving the density of the tube bag 1032. This tight structure can improve the compressive strength and stability of the tube bag 1032, and protect the internal pipe 106 from the influence of external pressure.

[0051] When the seabed water flows too fast, the water flow exerts a large impact force on the vibration rod 307 and the touch ball 309, causing the vibration rod 307 and the touch ball 309 to shake, prompting the vibration rod 307 to swing. At the same time, the touch ball 309 transmits its vibration to the touch rod 308, causing the touch rod 308 to move downward through the cooperation of the slide rail 312 and the slider 3121, further driving the spring 3122 to compress, causing the touch rod 308 to drive the touch plate 311 to move downward, causing the touch plate 311 to transmit its force to the non-Newtonian fluid ball 304, causing the non-Newtonian fluid inside the non-Newtonian fluid ball 304 to instantly harden, thereby alleviating the vibration of the tube bag 1032. The cooperation between the lip seal 3131 and the waterproof cover 3132 between the touch rod 308 and the tube bag 1032 can improve the sealing between the touch rod 308 and the vibration rod 307, preventing seawater from penetrating.

[0052] The hardening of the non-Newtonian fluid spheres 304 and the cooperation with the fixed grid 301 can form a rigid skeleton to prevent the tube bag 1032 from stretching or twisting due to the drag of the water flow. At the same time, the vibration energy absorbed by the non-Newtonian fluid spheres 304 reduces the repeated impact on the tube bag 1032, reduces the fatigue damage of the material of the tube bag 1032, and makes the coarse sand in the tube bag 1032 tend to be tightly arranged under the action of vibration when the tube bag 1032 is impacted by the water flow on the seabed. The hardening of the non-Newtonian fluid spheres 304 further limits the redistribution of the coarse sand, forming a composite structure of "rigid filling layer + flexible buffer layer", thereby improving the firmness of the pipeline 106.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description.

[0054] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A submarine pipeline laying device, characterized by: include: A sand box (1), wherein a plurality of support legs (101) are fixedly connected to the bottom of the sand box (1), support plates are fixedly connected to the sides of the support legs (101), a slag discharge pipe (103) is installed at the bottom of the sand box (1), a slag discharge pipe (103) is connected to the outer surface of the slag discharge pipe (103) with a slurry pump (102), a pipe (106) is installed in the seabed trench, and a pipe bag (1032) is movably connected to the upper surface of the pipe (106); A mixed fluid pressurized delivery assembly (2) is installed inside the sand box (1), the mixed fluid pressurized delivery assembly (2) comprising a water reducer tank (201) and a flocculant tank (203) mounted on the upper surface of the sand box (1) via a plurality of connecting rods, the water reducer tank (201) and the flocculant tank (203) being connected to a water reducer pipe (202) and a flocculant pipe (204) respectively inside. A vibration transmission component (3) is installed inside the tube bag (1032), and the vibration transmission component (3) includes a fixed grid (301) fixedly installed inside the tube bag (1032), a plurality of vibration balls (302) are fixedly connected between the tube bag (1032) and the fixed grid (301), and a plurality of holes (303) are provided inside the vibration balls (302).

2. The submarine pipeline laying device according to claim 1, characterized in that: The vibration transmission component (3) includes a vibration rod (307) fixedly mounted on the outer surface of the tube bag (1032), the vibration rod (307) and the interior of the vibration ball (302) are connected, a non-Newtonian fluid ball (304) is mounted inside the hole groove (303), a plurality of vibration plates (305) are fixedly connected to the outer surface of the non-Newtonian fluid ball (304), a protective film (306) is mounted on the outer surface of the vibration plate (305), the interior of the non-Newtonian fluid ball (304) is filled with non-Newtonian fluid, and the protective film (306) is made of a flexible packaging material.

3. The submarine pipeline laying device according to claim 2, characterized in that: The vibration transmission assembly (3) comprises two slide rails (312) fixedly mounted inside the vibration rod (307), a slider (3121) being slidably connected inside the slide rails (312), and a spring (3122) being fixedly connected between the slide rails (312) and the slider (3121).

4. The submarine pipeline laying device according to claim 2, characterized in that: A trigger rod (308) is inserted into the interior of the vibration rod (307), and a sealing member (313) is installed on the outer surface of the trigger rod (308). The sealing member (313) includes a lip seal ring (3131) fixedly connected between the trigger ball (309) and the tube bag (1032). One end of the trigger rod (308) is connected to a trigger plate (311), and the trigger plate (311) is arc-shaped. A silicone pad (3111) is fixedly connected to the outer surface of the trigger plate (311).

5. The submarine pipeline laying device according to claim 4, characterized in that: A waterproof sleeve (3132) is installed on the outer surface of the lip-shaped sealing ring (3131); the lip-shaped sealing ring (3131) is made of a waterproof sealing material; and the waterproof sleeve (3132) is made of a waterproof material.

6. The submarine pipeline laying device according to claim 2, characterized in that: The vibration transmission assembly (3) further comprises an elastic member (310) fixedly mounted between the vibration rod (307) and the tube bag (1032), wherein the elastic member (310) comprises a soft sleeve (3102) fixedly mounted between the vibration rod (307) and the tube bag (1032), a hard pad (3101) fixedly mounted inside the soft sleeve (3102), and the soft sleeve (3102) is made of an elastic material.

7. The submarine pipeline laying device according to claim 1, characterized in that: A feed pipe (208) is installed on the upper surface of the sand box (1), and one end of the water reducer pipe (202) and the flocculant pipe (204) abuts against the inner cavity of the feed pipe (208).

8. The submarine pipeline laying device according to claim 1, characterized in that: A water pump 2 (206) and a flow meter (205) are installed on the outer surfaces of the water reducer tube (202) and the flocculant tube (204), respectively. The upper surface of the sand box (1) is connected to a drive motor (207) via an L-plate. The output shaft end of the drive motor (207) is fixedly connected to a drive rod (2071). One end of the drive rod (2071) can be rotatably inserted into the inner cavity of the sand box (1) and is fixedly connected to a plurality of stirring rods (2072).

9. The submarine pipeline laying device according to claim 1, characterized in that: The upper surface of the support plate is connected to the slurry pump (102) by bolts, the outer surface of the slag discharge pipe (103) is installed with a hose (1031), the interior of the sand box (1) is installed with a delivery pipe (104), and the outer surface of the delivery pipe (104) is fixedly connected to a water pump (105).

10. The submarine pipeline laying device according to claim 9, characterized in that: One end of the rubber hose (1031) is connected to the tube bag (1032); a mounting plate (1033) is installed on the outer surface of the tube bag (1032); a plurality of mounting holes are provided inside the mounting plate (1033); positioning rods (1034) are installed inside the mounting holes; and the positioning rods (1034) are connected to the seabed trench.

Images