Wellhead pipeline extension device for split launching

Abstract

The utility model provides a wellhead pipeline extension device for split launching, which comprises a first supporting piece, a second supporting piece, a third supporting piece, a fourth supporting piece and a fourth supporting piece, and the first supporting piece is arranged on one side of a tunnel along the tunneling direction of the tunnel; the multiple lifting mechanisms are arranged on the first supporting piece, the lifting ends of the lifting mechanisms are away from the bottom of the tunnel, and the multiple lifting mechanisms are distributed in the tunneling direction of the tunnel at intervals; the multiple hanging brackets are arranged at the lifting ends of the multiple lifting mechanisms correspondingly, and the pipeline sequentially penetrates through the multiple hanging brackets in the tunneling direction of the tunnel; when the shield main machine conducts tunneling, the multiple lifting mechanisms are used for driving the multiple hanging brackets to sequentially fall to the bottom of the tunnel in the direction opposite to the tunneling direction. According to the wellhead pipeline extension device for split launching, stable follow-up of the pipeline and a shield tunneling main machine is guaranteed, and meanwhile the pipeline can be prevented from being stacked in the early launching stage.

Description

Technical Field

[0001] This disclosure relates to the field of shield tunneling split-type launching technology, and in particular to a wellhead pipeline extension device for split-type launching. Background Technology

[0002] In shield tunneling systems, the initial shaft opening is relatively short, preventing the auxiliary equipment from being lowered into the shaft as a whole or in part. Instead, it must be positioned on the ground. Furthermore, the shield machine and the auxiliary equipment are connected via extension pipelines, enabling separate launching. Once the shield machine has advanced long enough to accommodate the auxiliary equipment, the extension pipelines are disassembled, and the auxiliary equipment trailer is hoisted into the shaft. After the pipelines are reconnected, commissioning and launching are conducted.

[0003] Typically, the length of the split pipelines is relatively long. In the initial stage, a large number of pipelines accumulate at the bottom of the wellhead. This pipeline accumulation not only affects the advancement of the tunnel boring machine, but also makes the pipelines prone to being pulled or even broken as they move with the tunnel boring machine. Summary of the Invention

[0004] This disclosure aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, the purpose of this disclosure is to provide a split-type wellhead pipeline extension device.

[0006] To achieve the above objectives, this disclosure provides a split-type starting wellhead pipeline extension device, comprising: a first support member disposed on one side of the tunnel along the tunnel excavation direction; a plurality of lifting mechanisms disposed on the first support member, with the lifting ends of the lifting mechanisms located away from the bottom of the tunnel, and the plurality of lifting mechanisms being spaced apart along the tunnel excavation direction; a plurality of hangers disposed on the lifting ends of the plurality of lifting mechanisms, and the pipeline sequentially passing through the plurality of hangers along the tunnel excavation direction, wherein the shield tunneling machine and supporting equipment are connected through the pipeline; wherein, when the shield tunneling machine is excavating, the plurality of lifting mechanisms are used to drive the plurality of hangers to sequentially descend to the bottom of the tunnel along the opposite direction of excavation.

[0007] Optionally, the extension device further includes a second support member, which is disposed on one side of the tunnel along the tunnel excavation direction and is connected to the first support member.

[0008] Optionally, the extension device further includes: a plurality of connectors, the connectors being disposed on the first support member, and the end of the connector away from the first support member being connected to the second support member, the plurality of connectors being distributed at intervals along the tunneling direction.

[0009] Optionally, a limiting segment is formed between adjacent connecting members, and multiple lifting mechanisms are spaced apart in multiple limiting segments.

[0010] Optionally, the length of the pipeline between adjacent hangers is greater than the spacing between adjacent hangers, so that the pipeline is distributed in a serpentine pattern along the tunnel excavation direction.

[0011] Optionally, the lifting mechanism includes a chain hoist, which is mounted on the first support member and the hook of the chain hoist is away from the bottom of the tunnel. Multiple chain hoists are distributed at intervals along the tunnel excavation direction. The multiple hangers are respectively hung on the hooks of the multiple chain hoists.

[0012] Optionally, the hanger includes: a first side plate, a second side plate, an upper hanging pin, and a lower hanging pin; wherein the first side plate and the second side plate are arranged opposite to each other; the upper hanging pin is disposed between the first side plate and the second side plate, and the upper hanging pin is located at the top of the first side plate and the second side plate, and the upper hanging pin is connected to the lifting end of the lifting mechanism; the lower hanging pin is disposed between the first side plate and the second side plate, and the lower hanging pin is located at the bottom of the first side plate and the second side plate, and the pipeline passes through the space between the upper hanging pin and the lower hanging pin.

[0013] Optionally, the hanger includes a plurality of lower pins, which are spaced apart along the tunnel excavation direction and distributed in an arc shape, with the arc shape curving upward.

[0014] Optionally, the hanger further includes: a first bolt, the threaded portion of the first bolt passing through the first side plate and threadedly connected to the end of the upper hanging pin away from the second side plate, and the head of the first bolt abutting against the side of the first side plate away from the second side plate; and a second bolt, the threaded portion of the second bolt passing through the second side plate and threadedly connected to the end of the upper hanging pin away from the first side plate, and the head of the second bolt abutting against the side of the second side plate away from the first side plate.

[0015] Optionally, the head of the first bolt is provided with a first lifting hole; and / or, the head of the second bolt is provided with a second lifting hole.

[0016] The technical solution provided in this disclosure may include the following beneficial effects:

[0017] Because the first support member is located on one side of the tunnel along the tunnel's excavation direction, and the lifting mechanism is mounted on the first support member, multiple lifting mechanisms are spaced apart along the tunnel's excavation direction. This allows the multiple lifting mechanisms to be arranged at intervals on one side of the tunnel using the first support member. Furthermore, since the lifting ends of the lifting mechanisms are far from the tunnel bottom, and the pipeline passes through multiple hangers sequentially along the tunnel's excavation direction, the pipeline can be lifted and arranged within the tunnel when the lifting mechanisms are not in operation. Simultaneously, when the tunnel boring machine (TBM) is excavating, multiple lifting mechanisms drive multiple hangers to descend sequentially to the tunnel bottom in the opposite direction of excavation, thus meeting the follow-up requirements of the pipeline and the TBM. Through the cooperation of the first support member, multiple lifting mechanisms, and multiple hangers, the lifting and lowering of the pipeline within the tunnel is achieved. This ensures stable follow-up of the pipeline and the TBM while preventing pipeline accumulation in the initial stages. Consequently, it not only guarantees smooth excavation of the TBM but also effectively solves the problem of pipeline tangling, pulling, or even breakage.

[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of a split-type starting wellhead pipeline extension device arranged in a tunnel according to an embodiment of this disclosure;

[0021] Figure 2 This is a schematic diagram of the structure of a split-type wellhead pipeline extension device according to an embodiment of this disclosure;

[0022] Figure 3 This is a cross-sectional schematic diagram of the hanger in a split-type wellhead pipeline extension device according to an embodiment of the present disclosure;

[0023] Figure 4 This is a side view of the hanger in a split-type wellhead pipeline extension device according to an embodiment of the present disclosure;

[0024] As shown in the figure: 1. First support component, 2. Second support component, 3. Connecting component, 4. Lifting mechanism;

[0025] 5. Hanger; 51. First side plate; 52. Second side plate; 53. Upper hanging pin; 54. Lower hanging pin; 55. First bolt; 56. Second bolt; 57. First lifting hole; 58. Second lifting hole.

[0026] 100. Tunnel boring machine (TBM) main unit; 200. Supporting equipment; 300. Pipelines. Detailed Implementation

[0027] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0028] like Figure 1 and Figure 2 As shown in the embodiment of this disclosure, a split-type starting manhole pipeline 300 extension device is proposed, including: a first support member 1, multiple lifting mechanisms 4, and multiple hangers 5. The first support member 1 is disposed on one side of the tunnel along the tunnel excavation direction. The lifting mechanisms 4 are disposed on the first support member 1, and the lifting ends of the lifting mechanisms 4 are far from the bottom of the tunnel. The multiple lifting mechanisms 4 are distributed at intervals along the tunnel excavation direction. The multiple hangers 5 are respectively disposed on the lifting ends of the multiple lifting mechanisms 4, and the pipeline 300 passes through the multiple hangers 5 sequentially along the tunnel excavation direction. The shield tunneling machine 100 and the supporting equipment 200 are connected through the pipeline 300. When the shield tunneling machine 100 is excavating, the multiple lifting mechanisms 4 are used to drive the multiple hangers 5 to fall sequentially to the bottom of the tunnel in the opposite direction of excavation.

[0029] It is understandable that, since the first support member 1 is set on one side of the tunnel along the tunnel excavation direction, and the lifting mechanism 4 is set on the first support member 1, and multiple lifting mechanisms 4 are distributed at intervals along the tunnel excavation direction, multiple lifting mechanisms 4 can be arranged at intervals on one side of the tunnel using the first support member 1. Furthermore, since the lifting end of the lifting mechanism 4 is far from the bottom of the tunnel, and the pipeline 300 passes through multiple hangers 5 in sequence along the tunnel excavation direction, the pipeline 300 can be lifted and arranged in the tunnel when the lifting mechanism 4 is not in operation. At the same time, when the shield machine host 100 is excavating, multiple lifting mechanisms 4 drive multiple hangers 5 to fall to the bottom of the tunnel in sequence along the opposite direction of excavation, thereby meeting the follow-up requirements of the pipeline 300 and the shield machine host 100.

[0030] Through the cooperation of the first support component 1, multiple lifting mechanisms 4 and multiple hangers 5, the pipeline 300 is lifted and lowered in the tunnel. This ensures that the pipeline 300 moves stably with the shield machine host 100, and also prevents the pipeline 300 from accumulating in the early stage of tunneling. As a result, not only is the smooth tunneling of the shield machine host 100 guaranteed, but the problem of the pipeline 300 being pulled and even broken is also effectively solved.

[0031] It should be noted that the pipeline 300 is used for the electrical connection between the tunnel boring machine 100 and the supporting equipment 200, so as to realize the separate starting of the tunnel boring machine 100 and the supporting equipment 200. The specific type of pipeline 300 can be set according to actual needs and is not limited thereto. For example, the length of pipeline 300 can be about 100 meters. Pipeline 300 is arranged inside the tunnel, with one end connected to the tunnel boring machine 100 inside the tunnel and the other end connected to the supporting equipment 200 on the ground outside the tunnel. The supporting equipment 200 may include: an equipment bridge and multiple trailers connected in sequence behind the equipment bridge.

[0032] The first support member 1 is used to be installed on one side of the tunnel to support multiple lifting mechanisms 4. The specific type of the first support member 1 can be set according to actual needs and there is no restriction. For example, the first support member 1 can be a steel wire rope. The first support member 1 is installed on the frame beam on one side of the tunnel using anchor rods, bolts and other fixing parts. The diameter of the first support member 1 can be 30mm.

[0033] The lifting mechanism 4 is used to raise and lower the pipeline 300. In the initial stage, the lifting mechanism 4 keeps its lifting end raised to move the pipeline 300 away from the tunnel bottom and release space at the tunnel bottom. As the tunnel boring machine 100 advances, the lifting ends of multiple lifting mechanisms 4 fall sequentially to gradually lower the pipeline 300 to the tunnel bottom. This orderly release of the pipeline 300 avoids confusion and ensures the synchronous migration of the pipeline 300 and the tunnel boring machine 100. The specific type of lifting mechanism 4 can be set according to actual needs and is not limited thereto.

[0034] The hanger 5 is used to pass through the pipeline 300 and to lift or lower the pipeline 300 by using the lifting mechanism 4. At the same time, the pipeline 300 is allowed to move freely in the tunnel excavation direction by using the through structure of the pipeline 300 on the hanger 5. The specific type of hanger 5 can be set according to actual needs and there are no restrictions on it.

[0035] In this process, multiple gantry cranes 5 are lowered sequentially to the bottom of the tunnel in the opposite direction of the excavation. Specifically, as the tunnel boring machine 100 advances, the gantry crane 5 closest to the tunnel boring machine 100 (the first closest) first falls to the bottom of the tunnel. Then, the second gantry crane 5 closest to the tunnel boring machine 100 falls to the bottom of the tunnel. Then, the third gantry crane 5 closest to the tunnel boring machine 100 falls to the bottom of the tunnel. Thus, multiple gantry cranes 5 fall to the bottom of the tunnel in sequence.

[0036] like Figure 2 As shown, in some embodiments, the extension device further includes a second support member 2, which is disposed on one side of the tunnel along the tunnel excavation direction and is connected to the first support member 1.

[0037] It is understandable that, since the second support member 2 is set on one side of the tunnel along the tunnel excavation direction and is connected to the first support member 1, the second support member 2 can cooperate with the first support member 1 to improve the support capacity of multiple lifting mechanisms 4, thereby ensuring the stable arrangement of multiple lifting mechanisms 4 in the tunnel, and thus ensuring the stable lifting and lowering of pipeline 300.

[0038] It should be noted that the second support member 2 is used to improve the support performance of the first support member 1. The specific type of the second support member 2 can be set according to actual needs and there is no restriction. For example, the second support member 2 can be a steel wire rope. The second support member 2 is set on the frame beam on one side of the tunnel using anchor rods, bolts and other fixing components. The diameter of the second support member 2 can be 30mm.

[0039] like Figure 2 As shown, in some embodiments, the extension device further includes: a plurality of connectors 3, which are disposed on the first support 1, and the end of the connector 3 away from the first support 1 is connected to the second support 2, and the plurality of connectors 3 are distributed at intervals along the tunnel excavation direction.

[0040] It is understandable that since the connector 3 is set on the first support 1 and the end of the connector 3 away from the first support 1 is connected to the second support 2, the first support 1 and the second support 2 can be connected by multiple connectors 3, thereby ensuring the stable support of the first support 1 and the second support 2 for multiple lifting mechanisms 4.

[0041] It should be noted that the connector 3 is used to connect the first support 1 and the second support 2. The specific type of connector 3 can be set according to actual needs and there is no restriction. For example, connector 3 can be a U-shaped buckle.

[0042] In some embodiments, a limiting section is formed between adjacent connecting members 3, and multiple lifting mechanisms 4 are spaced apart in multiple limiting sections.

[0043] It is understandable that, since the adjacent connecting parts 3 form a limiting section and multiple lifting mechanisms 4 are distributed in multiple limiting sections at intervals, the lifting mechanism 4 can use the adjacent connecting parts 3 to achieve limiting, so as to avoid movement or deviation on the first support 1 along the tunnel excavation direction, thereby ensuring the stable arrangement of the lifting mechanism 4, and thus ensuring the stable lifting and lowering of the pipeline 300.

[0044] It should be noted that the limiting segment is formed between adjacent connecting parts 3, and the length of the limiting segment is determined by the distance between adjacent connecting parts 3. Since multiple lifting mechanisms 4 are distributed in multiple limiting segments at intervals, each pair of connecting parts 3 corresponds to one lifting mechanism 4.

[0045] like Figure 2 As shown, in some embodiments, the length of the pipeline 300 between adjacent hangers 5 is greater than the spacing between adjacent hangers 5, so that the pipeline 300 is distributed in a serpentine pattern along the tunnel excavation direction.

[0046] It is understandable that, since the length of the pipeline 300 between adjacent hangers 5 is greater than the spacing between adjacent hangers 5, the pipeline 300 can be distributed in a serpentine manner in the tunnel excavation direction. This not only allows for the arrangement of longer pipelines 300 using multiple hangers 5, but also enables the orderly release of pipelines 300 when multiple lifting mechanisms 4 drive multiple hangers 5 to descend to the bottom of the tunnel in sequence.

[0047] It should be noted that the serpentine distribution of pipeline 300 can also be called a waveform distribution. After pipeline 300 passes through multiple hangers 5, the part of pipeline 300 located between adjacent hangers 5 falls under the action of gravity, thus forming the trough of the waveform, while the part of pipeline 300 located at hanger 5 forms the peak.

[0048] In some embodiments, the lifting mechanism 4 includes a chain hoist mounted on a first support member 1, with the hook of the chain hoist located away from the bottom of the tunnel. Multiple chain hoists are spaced apart along the tunnel's excavation direction. Multiple hangers 5 are respectively mounted on the hooks of the multiple chain hoists.

[0049] Understandably, since the chain hoists are mounted on the first support member 1 and multiple chain hoists are spaced apart along the tunnel excavation direction, multiple chain hoists can be spaced apart on one side of the tunnel using the first support member 1. Furthermore, since the hooks of the chain hoists are far from the bottom of the tunnel and multiple hangers 5 are respectively hung on the hooks of multiple chain hoists, the pipeline 300 can be lifted and arranged in the tunnel when the chain hoists are not in motion. At the same time, when the shield machine 100 is excavating, multiple chain hoists drive multiple hangers 5 to fall sequentially to the bottom of the tunnel in the opposite direction of excavation, thereby meeting the follow-up requirements of the pipeline 300 and the shield machine 100.

[0050] It should be noted that the chain hoist is used to drive the lifting frame 5 to raise and lower the pipeline 300. The specific type of chain hoist can be set according to actual needs and there are no restrictions on it.

[0051] like Figure 3 and Figure 4As shown, in some embodiments, the hanger 5 includes: a first side plate 51, a second side plate 52, an upper hanging pin 53, and a lower hanging pin 54. The first side plate 51 and the second side plate 52 are arranged opposite to each other. The upper hanging pin 53 is located between the first side plate 51 and the second side plate 52, and is situated at the top of the first side plate 51 and the second side plate 52. The upper hanging pin 53 is connected to the lifting end of the lifting mechanism 4. The lower hanging pin 54 is located between the first side plate 51 and the second side plate 52, and is situated at the bottom of the first side plate 51 and the second side plate 52. A pipeline 300 passes through the space between the upper hanging pin 53 and the lower hanging pin 54.

[0052] Understandably, since the upper hanging pin 53 is located at the top of the first side plate 51 and the second side plate 52, and the upper hanging pin 53 is connected to the lifting end of the lifting mechanism 4, the lifting mechanism 4 can use the upper hanging pin 53 to drive the lifting of the hanger 5. Furthermore, since the lower hanging pin 54 is located at the bottom of the first side plate 51 and the second side plate 52, and the pipeline 300 passes between the upper hanging pin 53 and the lower hanging pin 54, the pipeline 300 can be arranged on the hanger 5 using the lower hanging pin 54. Thus, by utilizing the connection between the upper hanging pin 53 and the lower hanging pin 54, the lifting mechanism 4 can drive the pipeline 300 to rise and fall, thereby ensuring that the pipeline 300 can be arranged and released in an orderly manner.

[0053] It should be noted that the first side plate 51 and the second side plate 52 are used to arrange the upper hanging pin 53 and the lower hanging pin 54, so as to realize the arrangement of the pipeline 300 at the lifting end of the lifting mechanism 4 by cooperating with the upper hanging pin 53 and the lower hanging pin 54. The specific type of the first side plate 51 and the second side plate 52 can be set according to actual needs, and there is no restriction on it. For example, the first side plate 51 and the second side plate 52 are both plate structures that are close to triangles.

[0054] The upper pin 53 is used to hang the lifting end of the lifting mechanism 4. The specific type of the upper pin 53 can be set according to actual needs and there is no restriction. For example, the upper pin 53 is a pin structure, which is arranged along the width direction of the tunnel.

[0055] The lower pin 54 is used to hang the pipeline 300. The specific type of the lower pin 54 can be set according to actual needs and there is no restriction. For example, the lower pin 54 is a pin structure and it is arranged along the width direction of the tunnel.

[0056] like Figure 3 As shown, in some embodiments, the hanger 5 includes a plurality of lower hanging pins 54, which are spaced apart along the tunnel excavation direction and distributed in an arc shape, and the arc bends upward.

[0057] Understandably, since multiple lower pins 54 are spaced apart and distributed in an arc along the tunnel excavation direction, and the arc bends upward, the pipeline 300 can be placed on the hanger 5. The multiple lower pins 54 can increase the stress area, thereby reducing the local stress on the pipeline 300. At the same time, the guidance of the multiple lower pins 54 also facilitates the movement of the pipeline 300 in the tunnel excavation direction.

[0058] like Figure 4 As shown, in some embodiments, the hanger 5 further includes: a first bolt 55 and a second bolt 56, the threaded portion of the first bolt 55 passes through the first side plate 51 and is threadedly connected to the end of the upper hanging pin 53 away from the second side plate 52, and the head of the first bolt 55 abuts against the side of the first side plate 51 away from the second side plate 52, the threaded portion of the second bolt 56 passes through the second side plate 52 and is threadedly connected to the end of the upper hanging pin 53 away from the first side plate 51, and the head of the second bolt 56 abuts against the side of the second side plate 52 away from the first side plate 51.

[0059] It is understandable that, since the threaded part of the first bolt 55 passes through the first side plate 51 and is threadedly connected to the end of the upper hanging pin 53 away from the second side plate 52, and the head of the first bolt 55 abuts against the side of the first side plate 51 away from the second side plate 52, the end of the upper hanging pin 53 away from the second side plate 52 can be stably arranged on the first side plate 51 by means of the first bolt 55, and at the same time, it is convenient for the upper hanging pin 53 to be disassembled and repaired.

[0060] Since the threaded portion of the second bolt 56 passes through the second side plate 52 and is threadedly connected to the end of the upper hanging pin 53 away from the first side plate 51, and the head of the second bolt 56 abuts against the side of the second side plate 52 away from the first side plate 51, the end of the upper hanging pin 53 away from the first side plate 51 can be stably arranged on the second side plate 52 by means of the second bolt 56, and at the same time, it is convenient to disassemble and repair the upper hanging pin 53.

[0061] It should be noted that the first bolt 55 and the second bolt 56 are used for the detachable arrangement of the upper hanging pin 53 between the first side plate 51 and the second side plate 52. Both the first bolt 55 and the second bolt 56 include a connected head and a threaded part. The specific type of the first bolt 55 and the second bolt 56 can be set according to actual needs, and there is no limitation on this.

[0062] like Figure 4 As shown, in some embodiments, the head of the first bolt 55 is provided with a first lifting hole 57; and / or, the head of the second bolt 56 is provided with a second lifting hole 58.

[0063] It is understandable that, since the head of the first bolt 55 is provided with the first lifting hole 57, the hanger 5 can be lifted using the first lifting hole 57 on the first bolt 55, thus making the use of the hanger 5 more flexible and convenient.

[0064] Because the head of the second bolt 56 is provided with a second lifting hole 58, the hanger 5 can be hoisted using the second lifting hole 58 on the second bolt 56, making the use of the hanger 5 more flexible and convenient.

[0065] It should be noted that the specific types of the first lifting hole 57 and the second lifting hole 58 can be set according to actual needs, and there are no restrictions on this.

[0066] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0067] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A split originating wellhead pipeline riser installation, characterized by, The tunneling device comprises: a first support arranged on one side of the tunnel along the tunneling direction of the tunnel; a plurality of lifting mechanisms arranged on the first support, the lifting ends of the lifting mechanisms being away from the bottom of the tunnel, and the plurality of lifting mechanisms being spaced along the tunneling direction of the tunnel; a plurality of hangers arranged on the lifting ends of the plurality of lifting mechanisms, and the pipeline penetrating the plurality of hangers along the tunneling direction of the tunnel in sequence, wherein the shield main machine and the auxiliary equipment are connected through the pipeline; when the shield main machine tunnels, the plurality of lifting mechanisms are used to drive the plurality of hangers to sequentially fall to the bottom of the tunnel in the opposite direction of the tunneling; the lifting device further comprises a second support arranged on one side of the tunnel along the tunneling direction of the tunnel, and the second support is connected with the first support; the lifting device further comprises a plurality of connecting pieces arranged on the first support, one end of the connecting piece away from the first support being connected with the second support, and the plurality of connecting pieces being spaced along the tunneling direction of the tunnel; limiting sections are formed between adjacent connecting pieces, and the plurality of lifting mechanisms are spaced in the plurality of limiting sections; the first support is arranged on the frame beam on one side of the tunnel by means of a fixing piece, the diameter of the first support is 30 mm, the second support is arranged on the frame beam on one side of the tunnel by means of a fixing piece, and the diameter of the second support is 30 mm; the length of the pipeline between adjacent hangers is greater than the spacing between adjacent hangers, so that the pipeline is distributed in a serpentine shape along the tunneling direction of the tunnel; the hanger comprises a first side plate, a second side plate, an upper hanging pin and a lower hanging pin; wherein the first side plate and the second side plate are arranged oppositely, the upper hanging pin is arranged between the first side plate and the second side plate, and the upper hanging pin is located at the top of the first side plate and the second side plate, the upper hanging pin is connected with the lifting end of the lifting mechanism, the lower hanging pin is arranged between the first side plate and the second side plate, and the lower hanging pin is located at the bottom of the first side plate and the second side plate, and the pipeline penetrates between the upper hanging pin and the lower hanging pin; the lifting mechanism comprises a ring chain hoist arranged on the first support, and the hook of the ring chain hoist is away from the bottom of the tunnel, and the plurality of ring chain hoists are spaced along the tunneling direction of the tunnel; wherein the plurality of hangers are respectively hung on the hooks of the plurality of ring chain hoists; the hanger comprises a plurality of lower hanging pins, the plurality of lower hanging pins being spaced along the tunneling direction of the tunnel and being distributed in an arc shape, and the arc shape being curved upward. The hanger further comprises: a first bolt and a second bolt, a threaded portion of the first bolt penetrates through the first side plate and is threadedly connected with one end of the upper hanging pin away from the second side plate, and a head of the first bolt abuts against a side of the first side plate away from the second side plate, a threaded portion of the second bolt penetrates through the second side plate and is threadedly connected with one end of the upper hanging pin away from the first side plate, and a head of the second bolt abuts against a side of the second side plate away from the first side plate.

2. The split-origin wellhead pipeline extension device according to claim 1, characterized in that, the head of the first bolt is provided with a first lifting hole; and / or, the head of the second bolt is provided with a second lifting hole.

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