Pipeline sinking device
By using buoyant parts made of flexible materials in the pipeline sinking device, the buoyancy is adjusted by using the vents and water ports, the problem of unstable buoyancy during sinking and laying of underwater pipelines is solved, and high-precision and high-safe sinking are achieved Effect.
Patent Information
- Application Number
- CN202420981500.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-08
AI Technical Summary
During the sinking and laying of underwater pipelines, it is difficult for the prior art to achieve accurate buoyancy adjustment, resulting in unstable sinking and laying of pipelines. Especially when the riverbed terrain is uneven and the pipeline needs to be bent, the sinking and laying accuracy and safety are difficult to ensure.
A pipeline sinking device is designed, and the first buoyant part made of flexible material and the second buoyant part of the water storage space is adjusted through the ventilation port and the water storage volume is adjusted to achieve accurate buoyant adjustment. Suitable for sinking of curved pipes and uneven riverbeds.
It realizes precise control of buoyancy adjustment, ensures the construction accuracy and safety of pipeline sinking, expands the scope of application of the device, avoids the buoy swing at will, and protects the safety of underwater workers.
Smart Images
Figure CN222227308U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of underwater pipeline sinking, in particular to a pipeline sinking device. Background Art
[0002] In cities built along rivers, it may be necessary to pass pipelines underwater. Most of the pipelines that pass underwater are large-diameter and long-distance pipelines. When sinking these pipelines, they will be filled with water. It takes multiple large crane ships of more than 100 tons to complete the sinking. The sinking cost is high and there are also major safety hazards. Moreover, due to the height and width of the river gate, some rivers are not wide enough for large crane ships to pass through.
[0003] In view of the above situation, air bags and buoys are often installed on both sides of the pipeline to help sink the pipeline. In this case, the pipeline can be sunk to the bottom of the water only by a small crane ship. However, the buoy is long. After the water inlet valve is opened, water will enter the entire buoy. The water storage volume in the buoy is difficult to accurately control, resulting in an unstable floating state of the buoy, which not only affects the sinking of the pipeline, but also easily hits divers near the buoy. Especially when the riverbed terrain is uneven and the pipeline to be installed has an arc, it is difficult and difficult to control the rotation of the pipeline in the water, which will affect the accuracy of the pipeline sinking in the water.
[0004] Therefore, there is an urgent need for a pipeline sinking device to solve the above problems. Utility Model Content
[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a pipeline sinking device whose buoyancy can be accurately adjusted, reducing the difficulty of buoyancy adjustment, and can be used to sink curved pipelines to ensure the accuracy and safety of pipeline sinking.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] A pipeline sinking device is provided, comprising:
[0008] A plurality of first buoyancy members can be arranged at intervals on a first side of the pipeline along the length direction of the pipeline, the first buoyancy members are made of a flexible material, a variable volume air chamber is formed therein, and a vent connected to the air chamber is provided on the first buoyancy member, through which air can be ventilated to the air chamber or gas in the air chamber can be discharged;
[0009] A plurality of second buoyancy members can be arranged at intervals on the second side of the pipeline along the length direction of the pipeline, a water storage space is formed in the second buoyancy members, a plurality of partitions are arranged in the water storage space, and the plurality of partitions divide the water storage space into a plurality of water storage tanks, and a water inlet is arranged on the second buoyancy member corresponding to each water storage tank, through which water can be passed into the corresponding water storage tank or water in the corresponding water storage tank can be discharged.
[0010] Optionally, the second buoyancy member includes a cylinder, a sealing plate and a plurality of support members, the sealing plate is located at the end of the cylinder, the cylinder and the sealing plate are arranged to form a water storage space, and the plurality of support members are arranged in the cylinder at intervals along the length direction of the cylinder.
[0011] Optionally, a reinforcing member 1 and a reinforcing member 2 are arranged on the sealing plate, and the reinforcing member 1 and the reinforcing member 2 are arranged on a side of the sealing plate away from the water storage space, and the reinforcing member 1 and the reinforcing member 2 are arranged crosswise.
[0012] Optionally, the water inlet is arranged in the bottom area of the sealing plate, and an exhaust port is arranged in the top area of the sealing plate, through which the gas in the water storage space can be discharged.
[0013] Optionally, the plurality of second buoyancy members are arranged in one-to-one correspondence with the plurality of first buoyancy members.
[0014] Optionally, the pipeline sinking device further includes a first connecting member and a second connecting member, the second buoyancy member is detachably connected to the pipeline via the second connecting member, and the first buoyancy member is detachably connected to the pipeline or the second connecting member via the first connecting member.
[0015] Optionally, the first connecting member includes an elastic rope, which is wound around the first buoyancy member and detachably connected to the second connecting member;
[0016] Alternatively, the first connecting member includes an elastic rope, a flexible rope 1 is sleeved on the pipeline, the elastic rope is wound around the outside of the first buoyancy member, and is detachably connected to the flexible rope 1.
[0017] Optionally, the elastic rope is provided with a fastener 1, and the elastic rope is connected to the second connecting member or the flexible rope 1 via the fastener 1.
[0018] Optionally, the second connecting member includes a second flexible rope, which is wound around the pipeline and detachably connected to the first buoyancy member.
[0019] Optionally, the second buoyancy member is provided with a connecting ear plate, the second flexible rope is provided with a second fastener, and the flexible rope is connected to the connecting ear plate via the second fastener.
[0020] Compared with the prior art, the beneficial effects of the utility model are:
[0021] The utility model provides a pipeline sinking device. During the pipeline sinking construction, multiple first buoyancy members are arranged at intervals on the first side of the pipeline along the length direction of the pipeline, and multiple second buoyancy members are arranged at intervals on the second side of the pipeline along the length direction of the pipeline. Each first buoyancy member and the corresponding second buoyancy member are arranged on both sides of the pipeline, so that the pipeline can float in the water under the buoyancy of the first buoyancy member and the second buoyancy member before and after water injection. Deflation or inflation through the air vent can change the volume of the air chamber, thereby changing the volume of the first buoyancy member in the water, and adjusting the buoyancy of the first buoyancy member; water is passed or released through the water outlet, and the water storage capacity in the water storage space can be changed, thereby changing the volume of the second buoyancy member in the water, and adjusting the buoyancy of the second buoyancy member. For projects where the pipeline is a curved pipe or needs to be installed on an uneven riverbed, the buoyancy of the first buoyancy member is reduced by changing the volume of the air chamber, so that the buoyancy on the second side of the pipeline can be much greater than the buoyancy on the first side, allowing the pipeline to rotate under the action of unequal buoyancy on both sides and accurately installed on the riverbed, ensuring the construction accuracy of pipeline sinking and expanding the scope of application of the pipeline sinking device. The water storage space of the second buoyancy member is divided into multiple water storage tanks by a partition, and multiple water inlets are provided, so that each water storage tank can be individually filled with water or discharged. By controlling the water inlet and outlet of each water storage tank, the water volume in the entire water storage space can be increased or decreased more stably, thereby making the buoyancy change of the second buoyancy member more stable, reducing the difficulty of controlling the buoyancy of the second buoyancy member, and preventing the second buoyancy member from swinging at will, ensuring the safety of underwater workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A positional arrangement diagram of a first buoyancy member and a second buoyancy member of a pipeline sinking device provided by the utility model;
[0023] Figure 2 A schematic diagram of the structure of the pipeline sinking device provided by the utility model;
[0024] Figure 3 This is a schematic diagram of the connection between the pipeline and the pipeline sinking device after the pipeline is rotated;
[0025] Figure 4 A schematic diagram of the structure of the second buoyancy member of the pipeline sinking device provided by the utility model;
[0026] Figure 5 A schematic diagram of a sealing plate of a pipeline sinking device provided by the utility model.
[0027] in:
[0028] 1. Pipeline;
[0029] 2. a first buoyancy member;
[0030] 3. Second buoyancy member; 31. Separator; 32. Water inlet; 33. Cylinder; 34. Closing plate; 341. Reinforcement member 1; 342. Reinforcement member 2; 35. Support member; 36. Exhaust port; 37. Front water storage tank; 38. Middle water storage tank; 39. Rear water storage tank; 310. Connecting ear plate;
[0031] 41. elastic cord; 42. fastener 1;
[0032] 51. Two flexible ropes; 52. Two fasteners. DETAILED DESCRIPTION
[0033] It should be understood that, in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0034] It should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0035] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.
[0036] like Figures 1 to 5 As shown, this embodiment provides a pipeline sinking device, the buoyancy can be accurately adjusted, reducing the difficulty of buoyancy adjustment, and can be used to sink a curved pipeline 1 to ensure the accuracy and safety of sinking the pipeline 1. The pipeline sinking device includes a plurality of first buoyancy members 2 and a plurality of second buoyancy members 3.
[0037] See also Figure 2 , Figure 4 and Figure 5, a plurality of first buoyancy members 2 can be arranged at intervals on the first side of the pipeline 1 along the length direction of the pipeline 1, the first buoyancy member 2 is made of a flexible material, and a variable-volume air chamber is formed therein, and a vent connected to the air chamber is provided on the first buoyancy member 2, and the air chamber can be ventilated or the gas in the air chamber can be discharged through the vent; a plurality of second buoyancy members 3 can be arranged at intervals on the second side of the pipeline 1 along the length direction of the pipeline 1, and a water storage space is formed in the second buoyancy member 3, and a plurality of partitions 31 are provided in the water storage space, and the plurality of partitions 31 divide the water storage space into a plurality of water storage tanks, and a water inlet 32 is provided on the second buoyancy member 3 corresponding to each water storage tank, and water can be passed into the corresponding water storage tank or the water in the corresponding water storage tank can be discharged through the water inlet 32. Among them, the first side and the second side are two sides facing each other along the width direction of the pipeline 1.
[0038] The pipeline sinking device provided in this embodiment, during the construction of sinking the pipeline 1, multiple first buoyancy members 2 are arranged at intervals on the first side of the pipeline 1 along the length direction of the pipeline 1, and multiple second buoyancy members 3 are arranged at intervals on the second side of the pipeline 1 along the length direction of the pipeline 1. Each first buoyancy member 2 and the corresponding second buoyancy member 3 are arranged on both sides of the pipeline 1, so that the pipeline 1 can float in the water under the buoyancy of the first buoyancy member 2 and the second buoyancy member 3 before and after water injection. The first buoyancy member 2 is made of flexible material, so that the volume of the air chamber can be changed by deflating or inflating through the air vent, thereby changing the volume of the first buoyancy member 2 in the water, and adjusting the buoyancy of the first buoyancy member 2; water can be passed or released through the water inlet 32, which can change the water storage capacity in the water storage space, thereby changing the volume of the second buoyancy member 3 in the water, and adjusting the buoyancy of the second buoyancy member 3. For projects where the pipe 1 is a curved pipe or the pipe 1 needs to be installed on an uneven riverbed, the buoyancy of the first buoyancy member 2 is reduced by changing the volume of the air chamber, so that the buoyancy of the second side of the pipe 1 can be much greater than the buoyancy of the first side, so that the pipe 1 can rotate under the action of unequal buoyancy on both sides to accurately install on the riverbed, thereby ensuring the accuracy of pipe sinking and expanding the scope of application of the pipe sinking device. The water storage space of the second buoyancy member 3 is divided into multiple water storage tanks by using a partition 31, and multiple water inlets 32 are provided, so that each water storage tank can be individually filled with water or discharged. By controlling the water inlet and outlet of each water storage tank, the water volume in the entire water storage space can be increased or decreased more stably, thereby making the buoyancy change of the second buoyancy member 3 more stable, reducing the difficulty of controlling the buoyancy of the second buoyancy member 3, and preventing the second buoyancy member 3 from swinging at will, thereby ensuring the safety of underwater workers.
[0039] Preferably, the number and positions of the plurality of first buoyancy members 2 and the plurality of second buoyancy members 3 arranged along the length direction of the pipeline 1 need to be calculated and determined based on factors such as the weight of the pipeline 1, the length of the pipeline 1, the number of crane vessels, and the lifting weight of the crane vessels, so that the pipeline 1 can float in the water under the action of the buoyancy of the first buoyancy members 2 and the second buoyancy members 3, and help the pipeline 1 to flip over in the water.
[0040] Illustratively, in this embodiment, the first buoyancy member 2 is an air bag made of rubber or other materials, and its volume can change with the volume of the air chamber. When the air bag is filled with gas, the air bag can float on the water surface to provide buoyancy for the pipeline 1.
[0041] In an optional embodiment, a plurality of second buoyancy members 3 are arranged in one-to-one correspondence with a plurality of first buoyancy members 2 , which can not only provide sufficient buoyancy for the pipeline 1 , but also provide a significant buoyancy difference on both sides of the pipeline 1 , which is beneficial to the rotation of the pipeline 1 .
[0042] In another alternative embodiment, see Figure 1 , the number of the second buoyancy members 3 may be greater than the number of the first buoyancy members 2, that is, the two are not arranged in a one-to-one correspondence. Specifically, the first buoyancy members 2 are arranged on the first side of the pipeline 1, and the second buoyancy members 3 are arranged on the second side of the pipeline 1. In addition, the first buoyancy members 2 are not arranged on the first side of the pipeline 1, but the second buoyancy members 3 are still arranged on the second side of the pipeline 1. Such an arrangement can increase the buoyancy difference between the two sides of the pipeline 1, which is conducive to the rotation of the pipeline 1, and can also reduce the number of the first buoyancy members 2, saving costs.
[0043] Optionally, see Figure 2 and Figure 4 The second buoyancy member 3 includes a cylinder 33, a sealing plate 34 and a plurality of supporting members 35. The sealing plate 34 is located at the end of the cylinder 33. The cylinder 33 and the sealing plate 34 are arranged to form a water storage space. The plurality of supporting members 35 are arranged in the cylinder 33 at intervals along the length direction of the cylinder 33. The plurality of supporting members 35 can support the cylinder 33 to prevent the cylinder 33 from being deformed under the water pressure, and can also effectively prevent the cylinder 33 from being bent sideways, especially when the cylinder 33 is long.
[0044] In this embodiment, the second buoyancy member 3 is made of a rigid material, which has high strength and heavy weight and is not easily deformed in water. Figure 4 The cylinder 33, the sealing plate 34 and the partition 31 are all made of steel, and the support member 35 is made of I-beam, and its two ends are fixed to the cylinder 33 by welding.
[0045] In an optional embodiment, the support member 35 includes two I-beams, which are arranged in a cross manner, so as to provide support for the cylinder 33 in multiple directions, thereby improving the rigidity of the second buoyancy member 3; in another optional embodiment, the support member 35 may also include an I-beam arranged unidirectionally in the cylinder 33, and two adjacent support members 35 along the length direction of the cylinder 33 preferably extend in different directions to improve the rigidity of the second buoyancy member 3.
[0046] In this embodiment, refer to Figure 3 , Figure 4 and Figure 5 The cylinder 33 is cylindrical, and the sealing plate 34 and the partition 31 are circular, so that the contact surface between the second buoyancy member 3 and the pipeline 1 is small and the transition is uniform, and the pipeline 1 is not easily damaged; in other embodiments, the cylinder 33 can also be rectangular or other shapes.
[0047] Optionally, see Figure 5 The sealing plate 34 is provided with a reinforcing member 1 341 and a reinforcing member 2 342, which are arranged on the side of the sealing plate 34 away from the water storage space, and the reinforcing member 1 341 and the reinforcing member 2 342 are arranged crosswise. The arrangement of the reinforcing member 1 341 and the reinforcing member 2 342 can increase the rigidity of the sealing plate 34, support the sealing plate 34, and prevent the sealing plate 34 from being damaged due to a large pressure difference on both sides.
[0048] Exemplarily, in this embodiment, the reinforcement member 1 341 and the reinforcement member 2 342 are angle steels, which are arranged in a cross manner and are easy to connect with the sealing plate 34; in other embodiments, the reinforcement member 1 341 and the reinforcement member 2 342 can also be I-beams.
[0049] Optionally, see Figure 5 The water inlet 32 is arranged in the bottom area of the sealing plate 34, and the exhaust port 36 is arranged in the top area of the sealing plate 34, through which the gas in the water storage space can be discharged. The water inlet 32 is arranged below the exhaust port 36, so that the cylinder 33 can be exhausted while taking in water, and the water intake and exhaust do not interfere with each other; it can also prevent the uneven filling of each water storage tank, the unsmooth exhaust of the cylinder 33, and the different sinking speeds at both ends of the cylinder 33, which causes the tilt, so that the water intake at both ends of the cylinder 33 is consistent.
[0050] See also Figure 5 In this embodiment, the water inlet 32 is located at the lower left corner of the sealing plate 34, and the exhaust port 36 is located at the upper right corner of the sealing plate 34. The water inlet 32 and the exhaust port 36 are arranged diagonally. Preferably, the size of the water inlet 32 is larger than that of the exhaust port 36, so that water can quickly enter the cylinder 33 and improve the efficiency of the pipeline sinking. Exemplarily, the water inlet 32 can use a valve with a diameter of 100 mm, and the exhaust port 36 can use a valve with a diameter of 75 mm.
[0051] For example, see Figure 4 In this embodiment, the second buoyancy member 3 is provided with two partitions 31, forming three water tanks, namely the front water tank 37, the middle water tank 38 and the rear water tank 39. In an optional embodiment, the water inlets 32 of the front water tank 37 and the rear water tank 39 are provided on the sealing plate 34, and the water inlet 32 of the middle water tank 38 is provided on the partition 31. When adjusting the buoyancy of the second buoyancy member 3, the diver needs to enter the front water tank 37 or the rear water tank 39 to allow water to enter or exit the middle water tank 38; in other embodiments, in order to ensure the safety of the diver's work, the water inlet 32 of the middle water tank 38 is provided on the cylinder 33.
[0052] Optionally, see Figure 2 and Figure 3 The pipeline sinking device also includes a first connecting member and a second connecting member, the second buoyancy member 3 is detachably connected to the pipeline 1 through the second connecting member, and the first buoyancy member 2 is detachably connected to the pipeline 1 or the second connecting member through the first connecting member. The pipeline sinking device can be connected to the pipeline 1 as a whole through the first connecting member and the second connecting member, which is convenient for providing buoyancy for the pipeline 1 and convenient for disassembling and assembling the first buoyancy member 2 and the second buoyancy member 3. Among them, whether the first buoyancy member 2 is connected to the pipeline 1 or the second connecting member needs to be determined according to the specific conditions of the construction site.
[0053] In an optional embodiment, the first buoyancy member 2 is detachably connected to the second connection member through the first connection member, and the first connection member includes an elastic rope 41, which is wound around the outside of the first buoyancy member 2 and detachably connected to the second connection member. The elastic rope 41 is elastic and can be deformed together with the first buoyancy member 2, so that it can always be wound around the outside of the first buoyancy member 2. The elastic rope 41 is directly detachably connected to the second connection member, without the need to set an additional fixing structure on the pipeline 1, which simplifies the disassembly and assembly steps of the first buoyancy member 2 and improves the construction efficiency of sinking the pipeline 1.
[0054] Optionally, the elastic rope 41 is provided with a fastener 42, and the elastic rope 41 is connected to the second connecting member via the fastener 42, so as to facilitate the connection between the elastic rope 41 and the second connecting member, and especially facilitate the diver to release the connection underwater.
[0055] Exemplarily, in this embodiment, the elastic rope 41 is a sling, and the fastener 42 is a shackle. The shackle is convenient to connect with the sling and is easy to operate at the construction site. Specifically, the shackle includes a main body, a cross bolt and a nut. The main body is horseshoe-shaped, and connecting holes are provided at both ends of the main body. The cross bolt has threads, and the cross bolt passes through the connecting holes and is fastened to the main body by threaded connection with the nut. Buckles are provided at both ends of the elastic rope 41. The cross bolt passes through the buckles at both ends of the elastic rope 41 and is connected to the main body. The second connecting member passes through the buttonhole formed by the cross bolt and the main body, thereby connecting the elastic rope 41 to the second connecting member. The elastic rope 41 can be separated from the second connecting member by removing the cross bolt from the main body, and the operation is simple and quick.
[0056] In other embodiments, the fastener 42 can also be a hook, which includes a hook ring and a hook head. The hook head passes through the buckles at both ends of the elastic rope 41, and the second connecting member passes through the hook ring.
[0057] In another optional embodiment, the first buoyancy member 2 is detachably connected to the pipeline 1 through a first connecting member, the first connecting member includes an elastic rope 41, a flexible rope 1 is sleeved on the pipeline 1, the elastic rope 41 is wound around the first buoyancy member 2, and is detachably connected to the flexible rope 1, so that the connection relationship between the first buoyancy member 2 and the pipeline 1 can be controlled separately, and the first buoyancy member 2 can be installed first, or the second buoyancy member 3 can be installed first, which is convenient for construction. The flexible rope 1 is deformable and has a certain strength. When it is sleeved on the pipeline 1, it is not easy to be damaged even if friction occurs between it and the pipeline 1.
[0058] Optionally, the elastic rope 41 is provided with a fastener 42, and the elastic rope 41 is connected to the flexible rope 1 via the fastener 42, so as to facilitate the connection between the elastic rope 41 and the flexible rope 1, especially to facilitate divers to release the connection underwater.
[0059] For example, in this embodiment, the elastic rope 41 is a sling, the flexible rope 1 is a steel wire rope, and the fastener 1 42 is a shackle. Specifically, buckles are provided at both ends of the elastic rope 41, the cross bolt of the shackle passes through the buckles at both ends of the elastic rope 41, the flexible rope 1 is provided with buckles at both ends, the main body of the shackle passes through the buckles at both ends of the flexible rope 1, and the cross bolt is connected to the main body to connect the elastic rope 41 with the flexible rope 1. The elastic rope 41 can be separated from the flexible rope 1 by removing the cross bolt from the main body, which is simple and quick to operate and easy to operate at the construction site.
[0060] In other embodiments, the fastener 42 may also be a hook, the hook head of the hook passes through the buckles at both ends of the elastic rope 41, and the flexible rope 1 passes through the hook ring.
[0061] Optionally, the second connecting member includes a second flexible rope 51, which is wound around the pipe 1 and detachably connected to the first buoyancy member 2. The second flexible rope 51 is deformable and can be sleeved on pipes 1 of different shapes. Moreover, the second flexible rope 51 has a certain strength and is not easily damaged even if friction occurs between the pipe 1 and the second flexible rope 51.
[0062] Exemplarily, in this embodiment, the flexible rope 2 51 is a steel wire rope. In other embodiments, the flexible rope 2 51 can also be a climbing rope, which is waterproof, wear-resistant and elastic.
[0063] Optionally, the second buoyancy member 3 is provided with a connecting ear plate 310, and the flexible rope 2 51 is provided with a fastener 2 52, and the flexible rope 2 51 is connected to the connecting ear plate 310 through the fastener 2 52. The connecting ear plate 310 provides an installation basis for the connection between the flexible rope 2 51 and the second buoyancy member 3, so as to facilitate the connection between the second buoyancy member 3 and the flexible rope 2 51.
[0064] For example, see Figure 2 In this embodiment, two connecting ear plates 310 are provided on the cylinder 33 corresponding to each flexible rope 2 51, and the two connecting ear plates 310 are arranged at an angle to firmly connect the flexible rope 2 51 to the cylinder 33. Specifically, ear holes are provided on the connecting ear plates 310, the buckle 1 42 is a shackle, the horizontal bolt of the shackle passes through the ear holes, and a connecting ring is provided at the end of the flexible rope 2 51, the main body of the shackle passes through the connecting ring, and the horizontal bolt is connected to the main body, so that the connecting ear plates 310 are connected to the flexible rope 2 51, and the connection is stable and convenient. When the second buoyancy member 3 is separated from the pipeline 1, the underwater operation process of the staff is faster, ensuring the safety of the diver.
[0065] Preferably, along the length direction of the cylinder 33, the support members 35 and the connecting ear plates 310 are arranged in one-to-one correspondence to prevent the cylinder 33 from being deformed and damaged due to excessive tension at the connecting ear plates 310.
[0066] The construction process of sinking the pipeline 1 using the pipeline sinking device provided in this embodiment is as follows:
[0067] S1: On the water bank, the second buoyancy member 3 is connected to the pipeline 1 by using the second connecting member (at this time, there is no water in the water storage space of the second buoyancy member 3), and the first buoyancy member 2 filled with air in the air chamber is connected to the pipeline 1 or the second connecting member by using the first connecting member, so as to connect the pipeline sinking device and the pipeline 1 into one body;
[0068] S2: Use a crane ship to place the pipeline 1 and the pipeline sinking device into the water together, and the pipeline 1 can float on the water surface under the buoyancy provided by the pipeline sinking device;
[0069] S3: Open the water inlet valve and the exhaust valve of the pipe 1 at the same time to inject water into the pipe 1. When the pipe 1 is filled with water, close the water inlet valve and the exhaust valve. At this time, the pipe 1 can still float on the water surface, but the volume of the pipe 1 submerged in the water increases;
[0070] S4: Open the vent of the first buoyancy member 2 until all the air in the air chamber of the first buoyancy member 2 is exhausted, then open the fastener 42 to disconnect the first buoyancy member 2 from the pipeline 1 or the second connecting member, and recover the first buoyancy member 2. Figure 4 , the buoyancy on both sides of the pipeline 1 is no longer balanced, and the pipeline 1 will rotate under the buoyancy of the second buoyancy member 3 and the lifting force of the crane ship, and will be completely submerged in the water;
[0071] S5: Loosen the lifting cable of the crane ship until the pipeline 1 is placed in the foundation trench of the riverbed, and the pipeline 1 is sunk. After the pipeline 1 is sunk into place, high-pressure water is injected into the pipeline 1. After the water pressure test is passed, fix the ends of the pipeline 1 to ensure that the pipeline 1 is stably placed;
[0072] S6: The staff uses the second fastener 52 to disconnect the second buoyancy member 3 from the pipeline 1, and then opens the water inlet 32 and the exhaust port 36 of the second buoyancy member 3 at the same time, and injects water into the second buoyancy member 3, so that the buoyancy of the second buoyancy member 3 is increased, so that the second buoyancy member 3 is away from the pipeline 1 and floats in the water;
[0073] S7: Control the crane vessel to fish out the second buoyancy member 3 from the water and move it to the shore.
[0074] The above description is only a specific implementation method of the present utility model, but the protection scope of the present utility model is not limited thereto. Technicians in the relevant technical field should understand that any changes or substitutions that can be easily thought of by technicians in the relevant technical field within the technical scope disclosed in the present utility model fall within the protection scope and disclosure scope of the present utility model.
Claims
1. A pipeline sinking device, characterized in that: include: A plurality of first buoyancy members (2) can be arranged at intervals on a first side of the pipeline (1) along the length direction of the pipeline (1); the first buoyancy members (2) are made of a flexible material and have an air chamber with a variable volume formed therein; the first buoyancy members (2) are provided with an air vent connected to the air chamber, and air can be ventilated into the air chamber or the gas in the air chamber can be discharged through the air vent; A plurality of second buoyancy members (3) can be arranged at intervals on the second side of the pipeline (1) along the length direction of the pipeline (1); a water storage space is formed in the second buoyancy member (3); a plurality of partition members (31) are arranged in the water storage space; the plurality of partition members (31) divide the water storage space into a plurality of water storage tanks; a water inlet (32) is arranged on the second buoyancy member (3) corresponding to each of the water storage tanks; water can be passed into the corresponding water storage tank or water in the corresponding water storage tank can be discharged through the water inlet (32).
2. The pipeline sinking device according to claim 1, characterized in that: The second buoyancy member (3) comprises a cylinder (33), a sealing plate (34) and a plurality of supporting members (35); the sealing plate (34) is located at the end of the cylinder (33); the cylinder (33) and the sealing plate (34) are arranged to enclose the water storage space; and the plurality of supporting members (35) are arranged in the cylinder (33) at intervals along the length direction of the cylinder (33).
3. The pipeline sinking device according to claim 2, characterized in that: The sealing plate (34) is provided with a reinforcing member 1 (341) and a reinforcing member 2 (342); the reinforcing member 1 (341) and the reinforcing member 2 (342) are both arranged on a side of the sealing plate (34) away from the water storage space; the reinforcing member 1 (341) and the reinforcing member 2 (342) are arranged crosswise.
4. The pipeline sinking device according to claim 2, characterized in that: The water inlet (32) is arranged in the bottom area of the sealing plate (34), and an exhaust port (36) is arranged in the top area of the sealing plate (34), through which the gas in the water storage space can be discharged.
5. The pipeline sinking device according to claim 1, characterized in that: The plurality of second buoyancy members (3) are arranged in one-to-one correspondence with the plurality of first buoyancy members (2).
6. The pipeline sinking device according to claim 1, characterized in that: The pipeline sinking device further comprises a first connecting member and a second connecting member, wherein the second buoyancy member (3) is detachably connected to the pipeline (1) via the second connecting member, and the first buoyancy member (2) is detachably connected to the pipeline (1) or the second connecting member via the first connecting member.
7. The pipeline sinking device according to claim 6, characterized in that: The first connecting member comprises an elastic rope (41), the elastic rope (41) is wound around the outside of the first buoyancy member (2) and is detachably connected to the second connecting member; Alternatively, the first connecting member comprises an elastic rope (41), a flexible rope 1 is sleeved on the pipe (1), the elastic rope (41) is wound around the outside of the first buoyancy member (2) and is detachably connected to the flexible rope 1.
8. The pipeline sinking device according to claim 7, characterized in that: The elastic rope (41) is provided with a buckle one (42), and the elastic rope (41) is connected to the second connecting member or the flexible rope one via the buckle one (42).
9. The pipeline sinking device according to claim 6, characterized in that: The second connecting member comprises a second flexible rope (51), the second flexible rope (51) is wound around the pipeline (1) and is detachably connected to the first buoyancy member (2).
10. The pipeline sinking device according to claim 9, characterized in that: The second buoyancy member (3) is provided with a connecting ear plate (310), and the second flexible rope (51) is provided with a second fastener (52), and the flexible rope is connected to the connecting ear plate (310) via the second fastener (52).