阅读说明：本技术 一种rtp管配重及海上施工方法 (RTP pipe counterweight and offshore construction method ) 是由 尹镇喜 吴海波 吴勇 陆建权 赵全海 于 2019-10-09 设计创作，主要内容包括：本发明涉及RTP管铺设技术领域,且公开了一种RTP管配重,包括RTP管本体,RTP管本体的上端设有从下至上依次设置的第一牵引绳和第二牵引绳,第一牵引绳外活动插接有多个浮筒,第二牵引绳、浮筒和RTP管本体之间通过多个第一绑缚带固定绑缚在一起,RTP管本体的下端通过多个第二绑缚带固定绑缚有同一个配重钢链,配重钢链的下端均固定连接有多个定位环,定位环的下端固定连接有上盖,上盖的下端固定连接有上端开设为开口的配重盒。该RTP管配重及海上施工方法,具备能够实现对RTP管本体快速准确的配重使用,且能够有效的补偿RTP管本体在长度方向所受到的拉力和铺设张力,使得铺设的过程更加稳定快速,提高了结构稳定性的优点。(The invention relates to the technical field of RTP pipe laying, and discloses an RTP pipe counterweight, which comprises an RTP pipe body, wherein a first traction rope and a second traction rope which are sequentially arranged from bottom to top are arranged at the upper end of the RTP pipe body, a plurality of floating drums are movably inserted outside the first traction rope, the second traction rope, the floating drums and the RTP pipe body are fixedly bound together through a plurality of first binding belts, the lower end of the RTP pipe body is fixedly bound with the same counterweight steel chain through a plurality of second binding belts, the lower end of the counterweight steel chain is fixedly connected with a plurality of positioning rings, the lower ends of the positioning rings are fixedly connected with an upper cover, and the upper end of the upper cover is fixedly connected with a counterweight box with an opening. The RTP pipe counterweight and the offshore construction method have the advantages that the rapid and accurate counterweight use of the RTP pipe body can be realized, the tension force and the laying tension force of the RTP pipe body in the length direction can be effectively compensated, the laying process is more stable and rapid, and the structural stability is improved.)

1. An RTP tube weight comprising an RTP tube body (1), characterized in that: the upper end of the RTP pipe body (1) is provided with a first traction rope (2) and a second traction rope (3) which are sequentially arranged from bottom to top, a plurality of buoys (4) are movably inserted outside the first hauling rope (2), the second hauling rope (3), the buoys (4) and the RTP pipe body (1) are fixedly bound together through a plurality of first binding belts (5), the lower end of the RTP pipe body (1) is fixedly bound with the same counterweight steel chain (7) through a plurality of second binding belts (6), the lower ends of the counterweight steel chains (7) are fixedly connected with a plurality of positioning rings (8), the lower end of the positioning ring (8) is fixedly connected with an upper cover (9), the lower end of the upper cover (9) is fixedly connected with a counterweight box (10) with the upper end provided with an opening, the bottom center department fixedly connected with dead lever (11) of counter weight box (10), a plurality of balancing weights (12) have been cup jointed outward in dead lever (11).

2. An RTP tube counterweight as recited in claim 1, wherein: the side wall of the buoy (4) is provided with a rope inserting hole (13) which is movably inserted into the first traction rope (2).

3. An RTP tube counterweight as recited in claim 1, wherein: the center of the surface of the balancing weight (12) is provided with a sleeve hole which is movably sleeved outside the fixed rod (11).

4. An RTP tube counterweight as recited in claim 1, wherein: the outer wall of the upper end of the fixing rod (11) is provided with an external thread, the outer wall of the upper end of the fixing rod is connected with a limiting plate (14) in a threaded mode, and the lower end of the limiting plate (14) is fixedly connected with a connecting screw cylinder connected with the upper end of the fixing rod (11) in a threaded mode.

5. An RTP tube counterweight as recited in claim 1, wherein: a plurality of positioning screw holes (15) are symmetrically formed in the side walls of the upper cover (9) and the counterweight box (10), and the positioning screw holes (15) are symmetrically connected with the same positioning bolt (16) through internal threads.

6. An RTP pipe counterweight offshore construction method is characterized in that: the method comprises the following steps:

s1, calculating according to environmental factors such as specific salinity and buoyancy values of oceans and a design formula to obtain the actual buoyancy borne by the RTP pipe body (1) per unit length in the ocean laying process;

s2, weighing to obtain the volume and the weight of the RTP pipe body (1) in unit length, and calculating the weight of the RTP pipe body (1) in unit length needing to be additionally provided with a counterweight mechanism through a formula difference;

s3, preparing a counterweight steel chain (7), weighing to obtain the volume and the weight of the counterweight steel chain (7) in unit length, calculating to obtain whether the counterweight steel chain in unit length meets the weight of the RTP pipe body (1) required to be additionally provided with a counterweight through a formula difference, and fixedly connecting the counterweight steel chain (7) and the RTP pipe body (1) together through a plurality of second binding belts (6) to realize primary counterweight of the RTP pipe body (1);

s4, fixedly connecting an upper cover (9) to the lower end of a counterweight steel chain (7) by using a positioning ring (8) according to the calculated numerical value of the differential counterweight component of the unit length RTP pipe body (1), subtracting the weights of the upper cover (9) and a counterweight box (10) from the differential counterweight to obtain the weight of a required counterweight block (12), and selecting appropriate weights and quantity of counterweight blocks (12) to be inserted outside a fixed rod (11) in the counterweight box (10) according to the calculated numerical value to realize the relative limit of the counterweight block (12);

s5, after the balancing weights (12) are additionally arranged, the limiting plate (14) is fixedly and stably connected to the upper end of the fixing rod (11) through threaded connection of rod wall threads at the upper ends of the connecting screw cylinder and the fixing rod (11), so that stable limiting of the balancing weights (12) is realized, and the problem that stable laying of the RTP pipe body (1) is influenced by relative shaking of the balancing weights (12) in the actual use process is solved;

s6, the upper cover (9) and the counterweight box (10) are stably connected together through the matching of the positioning screw holes (15) and the positioning bolts (16) to realize the stable connection between the whole counterweight box (10) and the counterweight steel chain (7);

s7, the floating barrel (4) and the second hauling rope (6) are connected with the RTP pipe body (1) relatively through a plurality of first binding belts (5), the first hauling rope (2) penetrates through a rope inserting hole (13) formed in the middle of the floating barrel (4), the floating barrel (4) is stably limited through the cooperation of the first hauling rope (2) and the second hauling rope (3), the RTP pipe body (1) is provided with the floating barrel (4), and the counterweight steel chain (7) and the counterweight box (10) are placed into water section by section, so that the RTP pipe body (1) is laid.

Technical Field

The invention relates to the technical field of RTP pipe laying, in particular to an RTP pipe counterweight and an offshore construction method.

Background

At present, the existing RTP pipe mostly adopts a three-layer structure, wherein the inner layer is usually a corrosion-resistant and wear-resistant thermoplastic pipe, the middle layer is a reinforcing layer with a reinforcing effect, and the outer layer is an outer coating layer with a protecting effect, wherein the reinforcing layer mostly adopts reinforcing fiber ribbons, metal fiber ribbons, glass fiber ribbons and the like.

In the aspect of need consider RTP pipeline's counter weight when marine PTP pipe laying, the pipeline can rely on the gravity of oneself freely to sink in the sea water is an important part in the in-process of laying, and the pipeline is laid in the seabed, need can overcome still to stay or the influence of wave keeps the pipeline stable, pipeline will overcome laying tension when the pipeline is laid, at present, carry out the counter weight to marine RTP pipeline's counter weight mostly through adding the cement piece of establishing fixedly and use, it is inconvenient to be connected between pipeline and the cement piece, mostly be in the same place through connecting rope fixed connection, this leads to the normal laying that the cement piece breaks away from the pipeline easily and influences the pipeline in the in-service use, and the balancing weight can not help the pipeline to improve tensile properties, application scope is less, people's use is not convenient for.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an RTP pipe counterweight and a marine construction method, which have the advantages of realizing the rapid and accurate counterweight use of an RTP pipe body, effectively compensating the tension and laying tension of the RTP pipe body in the length direction, enabling the laying process to be more stable and rapid, and improving the structural stability, and solves the problems that the counterweight of a marine RTP pipeline is mostly used for counterweight by adding a fixed cement block, the pipeline is inconvenient to be connected with the cement block, the pipeline is mostly fixedly connected together through a connecting rope, the normal laying of the pipeline is influenced because the cement block is easy to separate from the pipeline in the actual use process, the counterweight can not help the pipeline to improve the tensile property, the application range is small, and the use of people is inconvenient.

(II) technical scheme

In order to realize the purposes of realizing the rapid and accurate counterweight use of the RTP pipe body, effectively compensating the tension and the laying tension of the RTP pipe body in the length direction, enabling the laying process to be more stable and rapid and improving the structural stability, the invention provides the following technical scheme: the utility model provides a RTP manages counter weight, includes RTP pipe body, the upper end of RTP pipe body is equipped with first haulage rope and the second haulage rope that sets gradually from supreme down, the outer activity grafting of first haulage rope has a plurality of pontoons, it ties together through a plurality of first bondings area fixed bondings to tie up between second haulage rope, pontoon and the RTP pipe body, the lower extreme of RTP pipe body ties up through a plurality of second and takes fixed bindings to tie up and has tied up same counter weight steel chain, the equal fixedly connected with a plurality of holding rings of lower extreme of counter weight steel chain, the lower extreme fixedly connected with upper cover of holding ring, open to the open-ended counter weight box in the lower extreme fixedly connected with upper end of upper cover, the bottom center department fixedly connected with dead lever of counter weight box, the dead lever overcoat has connected with a plurality of balancing weights.

Preferably, the side wall of the buoy is provided with a rope inserting hole which is used for being movably inserted with the first traction rope.

Preferably, the center of the surface of the balancing weight is provided with a sleeve hole which is movably sleeved outside the fixed rod.

Preferably, the outer wall of the upper end of the fixing rod is provided with an external thread, the external thread is connected with a limiting plate in a threaded manner, and the lower end of the limiting plate is fixedly connected with a connecting screw cylinder in threaded connection with the upper end of the fixing rod.

Preferably, a plurality of positioning screw holes are symmetrically formed in the side walls of the upper cover and the counterweight box, and the two positioning screw holes are symmetrically connected with the same positioning bolt through internal threads.

An RTP pipe counterweight offshore construction method comprises the following steps:

s1, calculating according to environmental factors such as specific ocean salinity buoyancy values and the like and a design formula to obtain the actual buoyancy born by the RTP pipe body per unit length in the ocean laying process;

s2, weighing to obtain the volume and the weight of the RTP pipe body in unit length, and calculating the weight of the RTP pipe body in unit length needing to be additionally provided with a counterweight mechanism through a formula difference;

s3, preparing a counterweight steel chain, weighing to obtain the volume and the weight of the counterweight steel chain in unit length, calculating through a formula difference to obtain whether the counterweight steel chain in unit length meets the weight of the RTP pipe body required to be added with a counterweight, and fixedly connecting the counterweight steel chain and the RTP pipe body together through a plurality of second binding belts to realize primary counterweight of the RTP pipe body;

s4, fixedly connecting the upper cover to the lower end of the counterweight steel chain by using a positioning ring according to the calculated numerical value of the differential counterweight component of the unit length RTP pipe body, subtracting the weights of the upper cover and the counterweight box from the differential counterweight to obtain the weight of the required counterweight block, and selecting the counterweight blocks with proper weight and quantity according to the calculated numerical value to be inserted outside a fixed rod in the counterweight box to realize the relative limit of the counterweight block;

s5, after the balancing weights are added, the limiting plate is stably and fixedly connected to the upper end of the fixing rod through threaded connection of the connecting screw cylinder and the rod wall threads on the upper end of the fixing rod, so that stable limiting of the balancing weights is achieved, and the problem that stable laying of an RTP (real time transport protocol) pipe body is influenced by relative shaking of the balancing weights in the actual use process is solved;

s6, the upper cover and the counterweight box are stably connected together through the matching of the positioning screw holes and the positioning bolts, so that the stable connection between the whole counterweight box and the counterweight steel chain is realized;

s7, the floating barrel, the second traction rope and the RTP pipe body are relatively connected together through the first binding belts, the first traction rope penetrates through a rope inserting hole formed in the middle side wall of the floating barrel, the floating barrel is stably limited through the cooperation of the first traction rope and the second traction rope, the RTP pipe body is driven to be placed into water with the floating barrel, the counterweight steel chain and the counterweight box section by section, and the RTP pipe body is laid.

(III) advantageous effects

Compared with the prior art, the invention provides an RTP pipe counterweight and an offshore construction method, which have the following beneficial effects:

1. according to the RTP pipe counterweight and the offshore construction method, the counterweight steel chain fixedly connected with the second binding belts can realize the function of realizing basic counterweight for the RTP pipe body, and the counterweight steel chain can effectively compensate the tension force of the RTP pipe body in the length direction and the laying tension force, so that the laying process is more stable and faster, and the structural stability is improved.

2. This RTP manages counter weight and marine construction method, through upper cover and the counter weight box that is equipped with, place the dead lever in the counter weight box with appropriate amount of balancing weight and cup joint outward, utilize positioning bolt to link together that upper cover and counter weight box are firm can realize the further counter weight to RTP pipe body, and overall structure is firm, be difficult to break away from with RTP pipe body, structural stability has been strengthened, can carry out quick counter weight use under different demand conditions, and can distribute going on adding the counter weight structure, the marine construction of being convenient for is used.

Drawings

FIG. 1 is a schematic view of a RTP pipe counterweight structure according to the present invention;

FIG. 2 is an enlarged view of a portion A of the RTP pipe counterweight of FIG. 1 according to the present invention;

fig. 3 is a schematic side view of a RTP tube counterweight buoy according to the present invention.

In the figure: the device comprises a RTP pipe body, a first traction rope 2, a second traction rope 3, a buoy 4, a first binding belt 5, a second binding belt 6, a counterweight steel chain 7, a positioning ring 8, an upper cover 9, a counterweight box 10, a fixing rod 11, a counterweight block 12, a rope inserting hole 13, a limiting plate 14, a positioning screw hole 15 and a positioning bolt 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an RTP tube counterweight includes an RTP tube body 1, a first hauling rope 2 and a second hauling rope 3 sequentially arranged from bottom to top are arranged at the upper end of the RTP tube body 1, the first hauling rope 2 is movably inserted with a plurality of buoys 4, the second hauling rope 3 is fixedly bound with the RTP tube body 1 through a plurality of first binding belts 5, the lower end of the RTP tube body 1 is fixedly bound with a same counterweight steel chain 7 through a plurality of second binding belts 6, the lower end of the counterweight steel chain 7 is fixedly connected with a plurality of positioning rings 8, the lower end of the positioning rings 8 is fixedly connected with an upper cover 9, the upper end of the lower end of the upper cover 9 is opened into an open counterweight box 10, a fixing rod 11 is fixedly connected at the center of the bottom of the counterweight box 10, and a plurality of counterweight blocks 12 are sleeved outside the fixing rod 11.

The side wall of the buoy 4 is provided with a rope inserting hole 13 which is movably inserted with the first traction rope 2.

The center of the surface of the balancing weight 12 is provided with a sleeve hole which is movably sleeved outside the fixed rod 11.

The outer wall of the upper end of the fixing rod 11 is provided with an external thread, the limiting plate 14 is in threaded connection, and the lower end of the limiting plate 14 is fixedly connected with a connecting screw cylinder in threaded connection with the upper end of the fixing rod 11.

A plurality of positioning screw holes 15 are symmetrically formed in the side walls of the upper cover 9 and the counterweight box 10, and the same positioning bolt 16 is connected to the two symmetrical positioning screw holes 15 in an internal thread mode.

An RTP pipe counterweight offshore construction method comprises the following steps:

s1, calculating the actual buoyancy force of the RTP pipe body 1 per unit length in the marine laying process according to the design formula according to environmental factors such as the specific salinity buoyancy value of the sea;

s2, weighing to obtain the volume and the weight of the RTP pipe body 1 in unit length, and calculating the weight of the RTP pipe body 1 in unit length needing to be provided with a counterweight mechanism through a formula difference;

s3, preparing a counterweight steel chain 7, weighing to obtain the volume and the weight of the counterweight steel chain 7 in unit length, calculating through a formula difference to obtain whether the counterweight steel chain in unit length meets the weight of the RTP pipe body 1 needing to be additionally provided with a counterweight, and fixedly connecting the counterweight steel chain 7 and the RTP pipe body 1 together through a plurality of second binding belts 6 to realize primary counterweight of the RTP pipe body 1;

s4, fixedly connecting an upper cover 9 to the lower end of a counterweight steel chain 7 by using a positioning ring 8 according to the calculated numerical value of the differential counterweight component of the RTP pipe body 1 in unit length, subtracting the weight of the upper cover 9 and a counterweight box 10 from the differential counterweight to obtain the weight of a counterweight block 12, and selecting appropriate weights and quantity of the counterweight blocks 12 to be inserted outside a fixed rod 11 in the counterweight box 10 according to the calculated numerical value to realize the relative limit of the counterweight blocks 12;

s5, after the balancing weights 12 are additionally arranged, the limiting plate 14 is fixedly and stably connected to the upper end of the fixing rod 11 through threaded connection of the connecting screw cylinder and the rod wall threads at the upper end of the fixing rod 11, so that stable limiting of the balancing weights 12 is realized, and the problem that the RTP pipe body 1 is stably laid due to the influence of relative shaking of the balancing weights 12 in the actual use process is solved;

s6, the upper cover 9 and the counterweight box 10 are stably connected together through the matching of the positioning screw hole 15 and the positioning bolt 16, so that the stable connection between the whole counterweight box 10 and the counterweight steel chain 7 is realized;

s7, the floating barrel 4 and the second traction rope 6 are connected with the RTP pipe body 1 relatively through the first binding belts 5, the first traction rope 2 penetrates through a rope inserting hole 13 formed in the middle side wall of the floating barrel 4, the floating barrel 4 is stably limited through the cooperation of the first traction rope 2 and the second traction rope 3, the RTP pipe body 1 is driven to be placed into water with the floating barrel 4, the counterweight steel chain 7 and the counterweight box 10 section by section, and the RTP pipe body 1 is laid.

In conclusion, according to the RTP pipe counterweight and the offshore construction method, the actual buoyancy force per unit length of the RTP pipe body 1 in the ocean laying process is calculated according to the design formula according to the specific ocean salinity and buoyancy values and other environmental factors; weighing to obtain the volume and weight of the RTP pipe body 1 in unit length, and calculating the weight of the RTP pipe body 1 in unit length needing to be additionally provided with the counterweight mechanism through a formula difference; preparing a counterweight steel chain 7, weighing to obtain the volume and the weight of the counterweight steel chain 7 in unit length, calculating through a formula difference to obtain whether the counterweight steel chain in unit length meets the weight of the RTP pipe body 1 needing to be added with a counterweight, and fixedly connecting the counterweight steel chain 7 and the RTP pipe body 1 together through a plurality of second binding belts 6 to realize primary counterweight of the RTP pipe body 1; utilizing a positioning ring 8 to fixedly connect an upper cover 9 to the lower end of a counterweight steel chain 7 according to the calculated numerical value of the difference counterweight component of the RTP pipe body 1 with unit length, subtracting the weight of the upper cover 9 and a counterweight box 10 from the difference counterweight to obtain the weight of a required counterweight block 12, selecting a proper weight and quantity of counterweight blocks 12 according to the calculated numerical value, inserting the counterweight blocks 12 outside a fixed rod 11 in the counterweight box 10, and realizing the relative limit of the counterweight blocks 12; after the balancing weights 12 are additionally arranged, the limiting plate 14 is stably and fixedly connected to the upper end of the fixing rod 11 through the threaded connection of the connecting screw cylinder and the rod wall threads at the upper end of the fixing rod 11, so that the stable limiting of the balancing weights 12 is realized, and the problem that the RTP pipe body 1 is stably laid due to the relative shaking of the balancing weights 12 in the actual use process is avoided; the stable connection between the whole counterweight box 10 and the counterweight steel chain 7 is realized through the matching of the positioning screw hole 15 and the positioning bolt 16, so that the upper cover 9 and the counterweight box 10 are stably connected together; through a plurality of first bondage areas 5 with flotation pontoon 4 and second haulage rope 6 with RTP pipe body 1 relatively connected together, in rope inserting hole 13 that 4 middle lateral walls of flotation pontoon were seted up was alternated to first haulage rope 2, realize stabilizing spacingly to flotation pontoon 4 through the cooperation of first haulage rope 2 and second haulage rope 3, take RTP pipe body 1 flotation pontoon 4, counter weight steel chain 7 and counter weight box 10 gradually put into aquatic, realize laying RTP pipe body 1.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.