WO2020211065A1 - Offshore platform pile leg high-pressure flushing apparatus - Google Patents
Offshore platform pile leg high-pressure flushing apparatus Download PDFInfo
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- WO2020211065A1 WO2020211065A1 PCT/CN2019/083345 CN2019083345W WO2020211065A1 WO 2020211065 A1 WO2020211065 A1 WO 2020211065A1 CN 2019083345 W CN2019083345 W CN 2019083345W WO 2020211065 A1 WO2020211065 A1 WO 2020211065A1
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- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
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Abstract
Disclosed in the present invention is an offshore platform pile leg high-pressure flushing apparatus, the pile shoe being modified to be very small to ensure the strength thereof; the water pressure is relatively very high and the flow is sufficient to flush soil off the pile legs and pile shoes; using a hysteresis two-way water pipe reel, a high-pressure water pipe can be automatically retracted and released by means of the action of hysteresis coupling, the water pipe passing through the top part of the pile leg, and the water being converted into impact kinetic energy by means of high potential energy; the structure of the system is simple, and continuous flushing can be performed when withdrawing the pile, without the need to consider the position of the pile leg movement; compared to connecting pipe flushing, the interface backflow resistance is reduced, and operation is convenient and simple; and the flushing pressure and flow at the top and bottom of the shoe can be adjusted according to pile withdrawal requirements, thereby implementing efficient washing away of the soil attached to the pile shoe and quick withdrawal of the pile.
Description
本发明涉及海上平台拔桩时的冲去周围土体等障碍物技术领域，具体为一种海上平台桩腿高压冲水装置。The invention relates to the technical field of washing off surrounding soil and other obstacles when pulling out piles of offshore platforms, and specifically relates to a high-pressure flushing device for the legs of offshore platforms.
目前，海上平台桩腿多为钢结构圆柱形或方柱形，并桩腿下部依护桩靴，国外的地质一般无需冲水装置，而中国沿海地质，黏土层较厚，且作业地点不同，土体性状不同，地层复杂，地质疏松，平台插桩时入泥很深，且插桩破坏土体重新成浆回淤，形成新的附着土体稳定在桩腿上，长时间固结后有很大的强度。当桩靴入泥很深时，拔桩阻力大大超过了平台结构所能承受的极限拔桩能力，所以拔桩需要通过冲水或其他方法促使拔桩时阻力减小，实现拔桩效率高。一般平台会设计是桩腿内部接管式的冲水系统，但流量和压力很难快速冲刷去桩靴附着的土体，由于压力过小，有时插桩时很容易赌塞出水管喷头，并且操作困难，很难达到高速拔桩的效果，因此，亟待一种改进的技术来解决现有技术中所存在的这一问题。At present, the legs of offshore platforms are mostly cylindrical or square columns with steel structure, and the lower part of the legs is supported by pile boots. Foreign geology generally does not require flushing devices. However, China’s coastal geology has thick clay layers and different operating locations. The soil properties are different, the stratum is complex, and the geology is loose. When the platform is inserted into the pile, the mud is deeply inserted, and the soil is damaged by the inserted pile and re-silted back to form a new attached soil to stabilize on the pile leg. Great intensity. When the pile shoe enters deep into the mud, the pulling out resistance greatly exceeds the ultimate pulling out capacity that the platform structure can withstand. Therefore, the pulling out requires flushing or other methods to reduce the resistance during pulling out to achieve high pile pulling out efficiency. Generally, the platform will be designed with a flushing system that takes over inside the pile legs, but the flow and pressure are difficult to quickly wash away the soil attached to the pile boots. Because the pressure is too small, sometimes it is easy to plug the sprinkler of the outlet pipe when inserting the pile and operate it. It is difficult and it is difficult to achieve the effect of high-speed pile pulling. Therefore, an improved technology is urgently needed to solve this problem in the prior art.
发明内容Summary of the invention
本发明的目的在于提供一种海上平台桩腿高压冲水装置，具备很大流量和压力，采用桩腿外管直接引流到桩腿顶部，并从桩腿顶部直接入水冲刷桩靴，形成很大的冲击力，使其附着土体粘性减弱，减小桩腿、桩靴与土体的摩擦力，从而减小拔桩压力，最终达到快速高效的拔桩，以解决上述背景技术中提出的问题。The purpose of the present invention is to provide a high-pressure flushing device for the leg of an offshore platform, which has a large flow and pressure, and uses the outer tube of the leg to directly drain to the top of the leg, and directly enters water from the top of the leg to flush the pile boot, forming a large The impact force makes the adhesion of the soil body weakened, reduces the friction between the pile legs, pile shoes and the soil body, thereby reducing the pile extraction pressure, and finally achieves rapid and efficient pile extraction to solve the above-mentioned background art problems. .
为实现上述目的，本发明提供如下技术方案：一种海上平台桩腿高压冲水装置，包括吸水管、粗水过滤器、吸水硬管、高压泵、进口软管、截止止回阀、四通接头、不锈钢球阀、安全阀、出水管、水管卷筒、高压出水软管、桩内出水管、托架、靴顶出水管、靴底出水管、靴顶喷头、靴底喷头、桩腿、固桩架、甲板、桩靴，所述桩腿底部设置有桩靴，所述桩腿外侧设置有固桩架，所述固桩架外围设置有甲板，所述甲板上设置有高压泵，所述高压泵的一端连有吸水硬管，所述吸水硬管与吸水管之间通过粗水过滤器相连，所述高压泵的另一端通过进口软管连有截止止回阀，所述截止止回阀通过四通接头分别连有一根具有安全阀的管道和两根出水管，每根所述出水管上均设有不锈钢球阀，两根所述出水管均与高压出水软管相通，所述高压出水软管盘旋在水管卷筒上，所述水管卷筒设置于所述固桩架的顶部，所述高压出水软管的出水口置于所述桩腿顶部并与桩内出水管相接，所述桩腿的顶部设有托架，所述托架托住所述高压出水软管与桩内出水管的连接口，所述桩内出水管与所述桩靴内的靴顶出水管和靴底出水管相通，所述靴顶出水管和靴底出水管分别连有靴顶喷头和靴底喷头。In order to achieve the above objectives, the present invention provides the following technical solutions: a high-pressure flushing device for the legs of an offshore platform, including a suction pipe, a coarse water filter, a hard suction pipe, a high-pressure pump, an inlet hose, a stop check valve, and a four-way Joints, stainless steel ball valves, safety valves, water outlet pipes, water pipe reels, high-pressure water outlet hoses, pile outlet pipes, brackets, boot top outlet pipes, boot bottom outlet pipes, boot top nozzles, boot bottom nozzles, pile legs, solid Pile frame, deck, pile shoe, the bottom of the leg is provided with a pile shoe, the outer side of the leg is provided with a fixed pile frame, the periphery of the fixed pile frame is provided with a deck, and the deck is provided with a high-pressure pump. One end of the high-pressure pump is connected with a hard suction pipe, the hard suction pipe and the suction pipe are connected by a coarse water filter, the other end of the high-pressure pump is connected with a stop check valve through an inlet hose, the stop check The valve is respectively connected to a pipe with a safety valve and two outlet pipes through a four-way joint. Each outlet pipe is provided with a stainless steel ball valve. The two outlet pipes are connected to a high-pressure outlet hose. The water outlet hose is hovered on the water pipe reel, the water pipe reel is arranged on the top of the fixed pile frame, and the water outlet of the high pressure water outlet hose is placed on the top of the pile leg and connected with the water outlet pipe in the pile, The top of the pile leg is provided with a bracket, the bracket supports the connection port of the high-pressure water outlet hose and the outlet pipe in the pile, the outlet pipe in the pile and the boot outlet pipe and the boot in the pile shoe The bottom water outlet pipes are connected, and the boot top water outlet pipe and the boot bottom water outlet pipe are respectively connected with a boot top nozzle and a boot bottom nozzle.
优选的，所述水管卷筒为一种磁滞式双路水管卷筒。Preferably, the water pipe reel is a hysteresis type two-way water pipe reel.
优选的，所述靴顶喷头及靴底喷头均有若干个。Preferably, there are several boot top nozzles and boot bottom nozzles.
优选的，其使用方法包括以下步骤：Preferably, the method of use includes the following steps:
步骤一：拔桩时，当平台降到与海平面接触时，吃水大约3米以上时，首先关闭两根出水管的不锈钢球阀，开启消防泵，进行引水，当感觉高压泵中有一定的水压时，即可启动高压泵开关；Step 1: When pulling out the pile, when the platform drops to sea level and the draft is about 3 meters or more, first close the stainless steel ball valves of the two outlet pipes, turn on the fire pump, and divert water. When you feel that there is a certain amount of water in the high-pressure pump When pressing, the high-pressure pump switch can be activated;
步骤二：经过泵的作用，从吸水管从海中吸水，经过粗水滤器，通过吸水硬管进入置于固桩架内甲板上的高压泵；Step 2: Through the action of the pump, the water is sucked from the sea from the suction pipe, and then through the coarse water filter, into the high-pressure pump placed on the inner deck of the fixed pile frame through the suction pipe;
步骤三：当压力达到额定的压力时，这时安全阀会打开，水会流出，减去压力，其他两路，打开不锈钢球阀，经出出水管向上流入依附在桩腿表侧的高压出水软管；Step 3: When the pressure reaches the rated pressure, the safety valve will open at this time, and the water will flow out. After subtracting the pressure, open the stainless steel ball valve for the other two channels and flow upward through the outlet pipe to the high-pressure water outlet attached to the surface of the leg. tube;
步骤四：随着桩腿的拔出高度，桩腿对高压出水软管的拖拽力大于磁滞联轴器所传递的扭矩，水管卷盘朝放缆方向旋转，高压出水软管被放开,且磁滞联轴器磁场特殊力矩耦合功能的存在可以保证高压出水软管不会因重力作用而从卷盘上滑落，自动进行对高压出水软管的收放；Step 4: With the pulling height of the pile leg, the drag force of the pile leg on the high-pressure water outlet hose is greater than the torque transmitted by the hysteresis coupling, the water pipe reel rotates in the direction of the cable release, and the high-pressure water outlet hose is released , And the existence of the special torque coupling function of the magnetic field of the hysteresis coupling can ensure that the high-pressure water outlet hose will not slip off the reel due to gravity, and the high-pressure water outlet hose will be automatically retracted and released;
步骤五：通过高压出水软管，到达桩腿顶部托架上的桩内出水管，经压力和水自重，直接冲到桩靴内部靴顶出水管和靴底出水管，最后相应冲到底部靴顶喷头和靴底喷头，从而产生巨大压力和流量；Step 5: Through the high-pressure water outlet hose, reach the pile inner water outlet pipe on the top bracket of the pile leg. After pressure and water weight, it directly rushes to the boot top outlet pipe inside the pile boot and the boot bottom outlet pipe, and finally rushes to the bottom boot accordingly. Top nozzles and boot bottom nozzles, thereby generating huge pressure and flow;
步骤六：随着桩腿的拔出，连续冲刷靴顶和靴底表面土体，达到高效的减小土体对桩腿的阻力，从而快速拔桩。Step 6: As the pile legs are pulled out, the soil on the top and bottom of the boot is continuously washed to effectively reduce the resistance of the soil to the pile legs, thereby quickly pulling out the pile.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:
(1)桩靴改造很小，保证其自身的强度；水压相对很大，流量很足，足以冲去桩腿、桩靴土体；采用磁滞式双路水管卷筒，通过磁滞联轴器的作用能够自动收放高压水管，水管直通桩腿顶部，水通过高势能转化为冲击动能。(1) Pile boots are very small in transformation to ensure their own strength; the water pressure is relatively large, and the flow is sufficient to wash away the soil of the pile legs and pile boots; the use of hysteresis dual-channel water pipe reel, through the hysteresis connection The function of the shaft device can automatically retract and release the high-pressure water pipe. The water pipe passes through the top of the pile leg, and the water is converted into impact kinetic energy through high potential energy.
(2)结构简单，在拔桩时可连续的冲水，无需考虑桩腿移动的位置；相对接管式冲水，减少了接口回流的阻力，操作方便简单；可 根据拔桩时的需求，对靴顶和靴底的冲水压力和流量进行调节，达到高效冲刷桩靴附着土体，达到快速拔桩。(2) The structure is simple, and the water can be continuously flushed when pulling out the pile, without considering the position of the leg movement; relative to the take-over flushing, it reduces the resistance of the interface backflow, and the operation is convenient and simple; it can be used according to the demand when pulling out the pile. The flushing pressure and flow rate of the top and bottom of the boot are adjusted to achieve efficient flushing of the soil attached to the pile boot and achieve rapid pile extraction.
图1为本发明的结构示意图。Figure 1 is a schematic diagram of the structure of the present invention.
图2为本发明甲板位置结构示意图。Figure 2 is a schematic diagram of the deck position structure of the present invention.
图3为桩靴顶部结构示意图。Figure 3 is a schematic diagram of the top structure of the pile shoe.
图4为桩靴底部结构示意图。Figure 4 is a schematic diagram of the bottom structure of the pile shoe.
图中：吸水管1、粗水过滤器2、吸水硬管3、高压泵4、进口软管5、截止止回阀6、四通接头7、不锈钢球阀8、安全阀9、出水管10、水管卷筒11、高压出水软管12、桩内出水管13、托架14、靴顶出水管15、靴底出水管16、靴顶喷头17、靴底喷头18、桩腿19、固桩架20、甲板21、桩靴22。In the picture: suction pipe 1, coarse water filter 2, suction hard pipe 3, high pressure pump 4, inlet hose 5, stop check valve 6, four-way joint 7, stainless steel ball valve 8, safety valve 9, water outlet pipe 10, Water pipe reel 11, high pressure water outlet hose 12, pile inner outlet pipe 13, bracket 14, boot top outlet pipe 15, boot bottom outlet pipe 16, boot top nozzle 17, boot bottom nozzle 18, pile leg 19, pile fixing frame 20. Deck 21 and pile boots 22.
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
请参阅图1-4，本发明提供一种技术方案：一种海上平台桩腿高压冲水装置，包括吸水管1、粗水过滤器2、吸水硬管3、高压泵4、进口软管5、截止止回阀6、四通接头7、不锈钢球阀8、安全阀9、出水管10、水管卷筒11、高压出水软管12、桩内出水管13、托架 14、靴顶出水管15、靴底出水管16、靴顶喷头17、靴底喷头18、桩腿19、固桩架20、甲板21、桩靴22，桩腿19底部设置有桩靴22，桩腿19外侧设置有固桩架20，固桩架20外围设置有甲板21，甲板21上设置有高压泵4，高压泵4的一端连有吸水硬管3，吸水硬管3与吸水管1之间通过粗水过滤器2相连，高压泵4的另一端通过进口软管5连有截止止回阀6，截止止回阀6通过四通接头7分别连有一根具有安全阀9的管道和两根出水管10，每根出水管10上均设有不锈钢球阀8，两根出水管10均与高压出水软管12相通，高压出水软管12盘旋在磁滞式双路水管卷筒11上，水管卷筒11设置于固桩架20的顶部，高压出水软管12的出水口置于桩腿19顶部并与桩内出水管13相接，桩腿19的顶部设有托架14，托架14托住高压出水软管12与桩内出水管13的连接口，桩内出水管13与桩靴22内的靴顶出水管15和靴底出水管16相通，靴顶出水管15和靴底出水管16分别连有靴顶喷头17和靴底喷头18。Please refer to Figures 1-4, the present invention provides a technical solution: a high-pressure flushing device for the legs of an offshore platform, including a suction pipe 1, a coarse water filter 2, a hard suction pipe 3, a high-pressure pump 4, and an inlet hose 5. , Stop check valve 6, four-way joint 7, stainless steel ball valve 8, safety valve 9, water outlet pipe 10, water pipe reel 11, high pressure water outlet hose 12, pile inner water outlet pipe 13, bracket 14, boot top water outlet pipe 15 , Boot bottom outlet pipe 16, boot top nozzle 17, boot bottom nozzle 18, pile leg 19, pile fixing frame 20, deck 21, pile boot 22, pile boot 22 is set at the bottom of pile leg 19, and fixed The pile frame 20 is provided with a deck 21 on the periphery of the fixed pile frame 20. A high-pressure pump 4 is provided on the deck 21. One end of the high-pressure pump 4 is connected with a hard suction pipe 3, and a coarse water filter is passed between the suction hard pipe 3 and the suction pipe 1. 2 is connected, the other end of the high-pressure pump 4 is connected to a stop check valve 6 through an inlet hose 5, and the stop check valve 6 is connected to a pipe with a safety valve 9 and two water outlet pipes 10 through a four-way joint 7. Each outlet pipe 10 is equipped with a stainless steel ball valve 8. The two outlet pipes 10 are connected to the high-pressure outlet hose 12. The high-pressure outlet hose 12 is hovered on the hysteresis dual-channel water pipe reel 11, and the water pipe reel 11 is arranged at On the top of the fixed pile frame 20, the water outlet of the high-pressure water outlet hose 12 is placed on the top of the pile leg 19 and connected with the pipe 13 in the pile. The top of the pile leg 19 is provided with a bracket 14 which supports the high-pressure water outlet. The connection port of the pipe 12 and the outlet pipe 13 in the pile, the outlet pipe 13 in the pile communicates with the top outlet pipe 15 and the boot bottom outlet pipe 16 in the pile shoe 22, and the boot top outlet pipe 15 and the boot bottom outlet pipe 16 are respectively connected Boot top nozzle 17 and boot bottom nozzle 18.
一种海上平台桩腿高压冲水装置，其使用方法包括以下步骤：A high-pressure flushing device for legs of an offshore platform, and its use method includes the following steps:
步骤一：拔桩时，当平台降到与海平面接触时，吃水大约3米以上时，首先关闭两根出水管10的不锈钢球阀8，开启消防泵，进行引水，当感觉高压泵4中有一定的水压时，即可启动高压泵4开关；Step 1: When pulling out the pile, when the platform drops to sea level and the draft is about 3 meters or more, first close the stainless steel ball valves 8 of the two outlet pipes 10, turn on the fire pump, and divert water. When you feel that there is something in the high-pressure pump 4 At a certain water pressure, the high-pressure pump 4 can be switched on;
步骤二：经过泵的作用，从吸水管1从海中吸水，经过粗水滤器，通过吸水硬管3进入置于固桩架20内甲板21上的高压泵4；Step 2: Through the action of the pump, suck water from the water suction pipe 1 from the sea, pass through the coarse water filter, and enter the high pressure pump 4 placed on the inner deck 21 of the fixed pile frame 20 through the water suction hard pipe 3;
步骤三：经泵作用，最大可输出5MPa的水压，经过截止止回阀6，通过四通接头7分流为三路，一路流向安全阀9管路，当压力达 到额定的压力时，为了保证泵及管子的强度，这时安全阀9会打开，水会流出，减去压力，其他两路，打开不锈钢球阀8，经出出水管10向上流入依附在桩腿19表侧的高压出水软管12，高压出水软管盘旋在磁滞式双路水管卷筒11上，磁滞式双路水管卷筒上置于固桩架20顶部；Step 3: Through the action of the pump, the maximum water pressure of 5MPa can be output. After the stop check valve 6, the four-way joint 7 is divided into three channels, and all the way to the safety valve 9 pipeline. When the pressure reaches the rated pressure, in order to ensure The strength of the pump and the pipe. At this time, the safety valve 9 will open, and the water will flow out. The pressure is subtracted. The other two ways, open the stainless steel ball valve 8, and flow upwards through the outlet pipe 10 into the high-pressure water outlet hose attached to the surface of the leg 19 12. The high-pressure water outlet hose is hovering on the hysteresis dual-channel water pipe reel 11, and the hysteresis dual-channel water pipe reel is placed on the top of the fixed pile frame 20;
步骤四：随着桩腿19的拔出高度，桩腿19对高压出水软管12的拖拽力大于磁滞联轴器所传递的扭矩，水管卷盘朝放缆方向旋转，高压出水软管12被放开,且磁滞联轴器磁场特殊力矩耦合功能的存在可以保证高压出水软管12不会因重力作用而从卷盘上滑落，自动进行对高压出水软管12的收放；Step 4: With the pull-out height of the leg 19, the drag force of the leg 19 on the high-pressure water outlet hose 12 is greater than the torque transmitted by the hysteresis coupling, the water pipe reel rotates in the direction of the cable release, and the high-pressure water outlet hose 12 is released, and the existence of the special torque coupling function of the magnetic field of the hysteresis coupling can ensure that the high-pressure water outlet hose 12 does not slip off the reel due to gravity, and the high-pressure water outlet hose 12 is automatically retracted and released;
步骤五：通过高压出水软管12，到达桩腿19顶部托架14上的桩内出水管13，经压力和水自重，直接冲到桩靴22内部靴顶出水管15和靴底出水管16，最后相应冲到底部靴顶喷头17和靴底喷头18，从而产生巨大压力和流量；Step 5: Through the high-pressure water outlet hose 12, reach the pile inner outlet pipe 13 on the top bracket 14 of the pile leg 19, and directly rush to the pile boot 22 inner boot top outlet pipe 15 and boot bottom outlet pipe 16 under pressure and water weight. , And finally rush to the bottom boot top nozzle 17 and boot bottom nozzle 18 accordingly, thereby generating huge pressure and flow;
步骤六：随着桩腿19的拔出，连续冲刷靴顶和靴底表面土体，达到高效的减小土体对桩腿19的阻力，从而快速拔桩。Step 6: As the pile leg 19 is pulled out, the soil on the top and bottom of the boot is continuously washed, so as to efficiently reduce the resistance of the soil to the pile leg 19, thereby quickly pulling out the pile.
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. And variations, the scope of the present invention is defined by the appended claims and their equivalents.
Claims (4)
- 一种海上平台桩腿高压冲水装置，其特征在于：包括吸水管(1)、粗水过滤器(2)、吸水硬管(3)、高压泵(4)、进口软管(5)、截止止回阀(6)、四通接头(7)、不锈钢球阀(8)、安全阀(9)、出水管(10)、水管卷筒(11)、高压出水软管(12)、桩内出水管(13)、托架(14)、靴顶出水管(15)、靴底出水管(16)、靴顶喷头(17)、靴底喷头(18)、桩腿(19)、固桩架(20)、甲板(21)、桩靴(22)，所述桩腿(19)底部设置有桩靴(22)，所述桩腿(19)外侧设置有固桩架(20)，所述固桩架(20)外围设置有甲板(21)，所述甲板(21)上设置有高压泵(4)，所述高压泵(4)的一端连有吸水硬管(3)，所述吸水硬管(3)与吸水管(1)之间通过粗水过滤器(2)相连，所述高压泵(4)的另一端通过进口软管(5)连有截止止回阀(6)，所述截止止回阀(6)通过四通接头(7)分别连有一根具有安全阀(9)的管道和两根出水管(10)，每根所述出水管(10)上均设有不锈钢球阀(8)，两根所述出水管(10)均与高压出水软管(12)相通，所述高压出水软管(12)盘旋在水管卷筒(11)上，所述水管卷筒(11)设置于所述固桩架(20)的顶部，所述高压出水软管(12)的出水口置于所述桩腿(19)顶部并与桩内出水管(13)相接，所述桩腿(19)的顶部设有托架(14)，所述托架(14)托住所述高压出水软管(12)与桩内出水管(13)的连接口，所述桩内出水管(13)与所述桩靴(22)内的靴顶出水管(15)和靴底出水管(16)相通，所述靴顶出水管(15)和靴底出水管(16)分别连有靴顶喷头(17)和靴底喷头(18)。A high-pressure flushing device for legs of an offshore platform, which is characterized in that it comprises a suction pipe (1), a coarse water filter (2), a hard suction pipe (3), a high-pressure pump (4), an inlet hose (5), Stop check valve (6), four-way joint (7), stainless steel ball valve (8), safety valve (9), water outlet pipe (10), water pipe reel (11), high pressure water outlet hose (12), inside the pile Outlet pipe (13), bracket (14), boot top outlet pipe (15), boot bottom outlet pipe (16), boot top nozzle (17), boot bottom nozzle (18), pile leg (19), fixed pile Frame (20), deck (21), pile shoes (22), pile shoes (22) are arranged at the bottom of the pile legs (19), and pile fixing frames (20) are arranged outside the pile legs (19), so A deck (21) is provided on the periphery of the fixed pile frame (20), and a high-pressure pump (4) is provided on the deck (21). One end of the high-pressure pump (4) is connected with a water suction pipe (3). The suction pipe (3) and the suction pipe (1) are connected through a coarse water filter (2), and the other end of the high-pressure pump (4) is connected with a stop check valve (6) through an inlet hose (5) , The stop check valve (6) is respectively connected to a pipe with a safety valve (9) and two outlet pipes (10) through a four-way joint (7), and each outlet pipe (10) is provided with There is a stainless steel ball valve (8), two of the water outlet pipes (10) are communicated with a high-pressure water outlet hose (12), and the high-pressure water outlet hose (12) is hovered on the water pipe reel (11). The tube (11) is arranged on the top of the fixed pile frame (20), and the outlet of the high-pressure water outlet hose (12) is placed on the top of the pile leg (19) and connected to the water outlet pipe (13) in the pile , The top of the pile leg (19) is provided with a bracket (14), and the bracket (14) supports the connection port of the high-pressure water outlet hose (12) and the water outlet pipe (13) in the pile. The inner water outlet pipe (13) communicates with the boot top outlet pipe (15) and the boot bottom outlet pipe (16) in the pile shoe (22), the boot top outlet pipe (15) and the boot bottom outlet pipe (16) A boot top nozzle (17) and a boot bottom nozzle (18) are respectively connected.
- 根据权利要求1所述的一种海上平台桩腿高压冲水装置，其特征在于：所述水管卷筒(11)为一种磁滞式双路水管卷筒。The high-pressure flushing device for the legs of an offshore platform according to claim 1, wherein the water pipe reel (11) is a hysteresis type dual-channel water pipe reel.
- 根据权利要求1所述的一种海上平台桩腿高压冲水装置，其特征在于：所述靴顶喷头(17)及靴底喷头(18)均有若干个。The high-pressure flushing device for the pile leg of an offshore platform according to claim 1, characterized in that there are a plurality of said boot top nozzles (17) and boot bottom nozzles (18).
- 根据权利要求1所述的一种海上平台桩腿高压冲水装置，其特征在于：其使用方法包括以下步骤：The high-pressure flushing device for the legs of an offshore platform according to claim 1, wherein the method of use includes the following steps:步骤一：拔桩时，当平台降到与海平面接触时，吃水大约3米以上时，首先关闭两根出水管(10)的不锈钢球阀(8)，开启消防泵，进行引水，当感觉高压泵(4)中有一定的水压时，即可启动高压泵(4)开关；Step 1: When pulling out the pile, when the platform drops to the sea level and the draft is about 3 meters or more, first close the stainless steel ball valves (8) of the two outlet pipes (10), turn on the fire pump, and conduct water diversion. When there is a certain water pressure in the pump (4), the switch of the high pressure pump (4) can be started;步骤二：经过泵的作用，从吸水管(1)从海中吸水，经过粗水滤器，通过吸水硬管(3)进入置于固桩架(20)内甲板(21)上的高压泵(4)；Step 2: Through the action of the pump, water is sucked from the sea from the suction pipe (1), passed through the coarse water filter, and enters the high pressure pump (4) on the inner deck (21) of the fixed pile frame (20) through the water suction pipe (3) );步骤三：当压力达到额定的压力时，这时安全阀(9)会打开，水会流出，减去压力，其他两路，打开不锈钢球阀(8)，经出出水管(10)向上流入依附在桩腿(19)表侧的高压出水软管(12)；Step 3: When the pressure reaches the rated pressure, the safety valve (9) will open at this time, and the water will flow out, subtract the pressure, the other two ways, open the stainless steel ball valve (8), and flow upward through the outlet pipe (10) The high-pressure water outlet hose (12) on the surface of the pile leg (19);步骤四：随着桩腿(19)的拔出高度，桩腿(19)对高压出水软管(12)的拖拽力大于磁滞联轴器所传递的扭矩，水管卷盘朝放缆方向旋转，高压出水软管(12)被放开,且磁滞联轴器磁场特殊力矩耦合功能的存在可以保证高压出水软管(12)不会因重力作用而从卷盘上滑落，自动进行对高压出水软管(12)的收放；Step 4: With the pull-out height of the pile leg (19), the drag force of the pile leg (19) on the high-pressure water outlet hose (12) is greater than the torque transmitted by the hysteresis coupling, and the water pipe reel faces the direction of unwinding the cable Rotate, the high-pressure water outlet hose (12) is released, and the existence of the special torque coupling function of the magnetic field of the hysteresis coupling can ensure that the high-pressure water outlet hose (12) will not slip off the reel due to gravity, and the automatic alignment Retraction and release of the high-pressure water outlet hose (12);步骤五：通过高压出水软管(12)，到达桩腿(19)顶部托架(14) 上的桩内出水管(13)，经压力和水自重，直接冲到桩靴(22)内部靴顶出水管(15)和靴底出水管(16)，最后相应冲到底部靴顶喷头(17)和靴底喷头(18)，从而产生巨大压力和流量；Step 5: Through the high-pressure water outlet hose (12), reach the pile inner water outlet pipe (13) on the top bracket (14) of the pile leg (19), and directly rush to the pile shoe (22) inner shoe under pressure and water weight The top outlet pipe (15) and the boot bottom outlet pipe (16), and finally rush to the bottom boot top nozzle (17) and boot bottom nozzle (18) correspondingly, thereby generating huge pressure and flow;步骤六：随着桩腿(19)的拔出，连续冲刷靴顶和靴底表面土体，达到高效的减小土体对桩腿(19)的阻力，从而快速拔桩。Step 6: With the pulling out of the pile leg (19), the soil on the top and bottom of the boot is continuously washed to effectively reduce the resistance of the soil to the pile leg (19), thereby quickly pulling out the pile.
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| PCT/CN2019/083345 WO2020211065A1 (en) | 2019-04-19 | 2019-04-19 | Offshore platform pile leg high-pressure flushing apparatus |
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| CN114396043A (en) * | 2022-01-20 | 2022-04-26 | 中船黄埔文冲船舶有限公司 | Pile shoe flushing device |
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