CN112482379A - System and method for large-area sludge feeding and adsorption force overcoming desliming of structural box body - Google Patents
System and method for large-area sludge feeding and adsorption force overcoming desliming of structural box body Download PDFInfo
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- CN112482379A CN112482379A CN202011504028.0A CN202011504028A CN112482379A CN 112482379 A CN112482379 A CN 112482379A CN 202011504028 A CN202011504028 A CN 202011504028A CN 112482379 A CN112482379 A CN 112482379A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/02—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by withdrawing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to a desliming system and a desliming method for overcoming adsorption force by large-area sludge feeding of a structural box body, which are characterized in that: comprises a lower floating body, a high-pressure water pump set, a nozzle set and a high-pressure flow passage set; according to the invention, the lower floating bodies are arranged on the pile legs, when the platform works, the lower floating bodies are used as supports to increase the stability of the ship body, after the work is finished, the gravity of the ship body is well dispersed due to the existence of the lower floating bodies, the pile pulling force is uniformly dispersed, and the lower floating bodies rise more stably; the adsorption force of the corresponding sludge on the platform is more dispersed and smaller due to the increase of the sludge inlet area, when the high-pressure water pump set injects water into the contact surface of the lower floating body and the sludge, the contact surface between the platform and the sludge is reduced, the adsorption force is reduced, and the platform is more easily separated from the sludge constraint; the water outlet of the nozzle unit can be remotely controlled, and if the lower floating body part is blocked in sludge in a regional mode, water can be independently injected into a problem region to assist in desliming.
Description
Technical Field
The invention relates to the field of self-elevating wind power installation hoisting platforms, in particular to a system and a method for removing mud by large-area mud entering and adsorption force overcoming of a structural box body.
Background
In the traditional structure, the box body is deslimed after entering the mud by arranging power device driving gears at four corners of the box body, the power device is fixed with the box body, the gears of the power device are meshed with racks on pile legs to drive the box body to move upwards, and the box body is forcibly pulled out of the mud;
the above method has the following disadvantages:
1. the box body is stressed unevenly: the method is mainly characterized in that the adsorption force of each pile leg pulling-out sludge is different, so that the pile leg pulling-out sludge generates a series of unstable factors, and the pile pulling-out difficulty and the danger coefficient in the pile pulling-out process are increased; the four corner regions of the power device are stressed, so that structural deformation is easily caused;
2. the mud discharging time is longer: because the pile legs generally ensure the stability of the pile legs by increasing the mud entering depth in order to ensure the operation stability of the platform, the deeper the mud entering is, the larger the adsorption force generated by the mud during mud discharging is, the limited buoyancy of the main ship system is, and the pile pulling speed is limited;
3. pile legs are easy to block in the pile pulling process: the main hull structure size is big, and the spud leg dispersion can lead to the main hull slope in the main hull outside, and the spud leg produces the contained angle with the main hull, and then leads to the spud leg card to die in the high nonconformity of spud leg extraction.
Disclosure of Invention
The invention aims to solve the technical problems that a structural box body is filled with mud in a large area and an adsorption force overcoming desliming system and a method thereof are provided, and the problems that a lower floating body and a pile leg desliming box body of a self-elevating wind power installation platform are not uniformly stressed, the mud discharging time is long, and pile legs are easily blocked in the pile pulling process can be solved.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a structure box body is gone into mud by a large scale and is overcome adsorption affinity desliming system, its innovation point lies in: comprises a lower floating body, a high-pressure water pump set, a nozzle set and a high-pressure flow passage set; the high-pressure pump set is connected to the nozzle set through the high-pressure runner set; the nozzle group is arranged on the bottom end face of the lower floating body;
the high-pressure runner group is provided with four independent high-pressure runner modules which are uniformly distributed on the inner wall of the lower surface of the lower floating body; the high-pressure water pump set is provided with four high-pressure water pump units which are arranged in parallel, and each high-pressure water pump unit is connected with a group of high-pressure runner modules; four high-pressure runner pipe units which are connected in parallel are arranged in the high-pressure runner module, two branch pipelines are arranged on each high-pressure water pump unit in parallel, and each branch pipeline is connected with two high-pressure runner pipe units which are connected in parallel;
the nozzle group is provided with a plurality of nozzle units, the nozzle units are distributed at equal intervals along the extension direction of each high-pressure runner pipe unit, the nozzles of the nozzle units penetrate through the lower surface of the lower floating body, the peripheries of the nozzles are welded on the lower surface of the lower floating body, and the jet flow direction of the nozzle units is perpendicular to the lower surface of the lower floating body and is ejected outwards;
the output ends of the high-pressure water pump units are provided with control valves, so that local water spraying or integral water spraying of any one group of high-pressure runner modules on the four groups of high-pressure runner modules is realized.
Furthermore, the periphery of a nozzle, exposed out of the lower surface of the lower floating body, of the nozzle unit is provided with an arc-shaped nozzle protection cover, and an opening for water to flow out is formed in the side face of the nozzle protection cover and the lower surface of the lower floating body in a welding mode.
The method for desliming the structural box body by overcoming the adsorption force through large-area sludge feeding has the innovation points that: the concrete desliming method comprises the following steps:
s1: gap water injection: opening a high-pressure water gun, injecting high-pressure water into a nozzle group communicated with the lower floating body, wherein the flow rate of the high-pressure water is determined according to the supporting area of the lower floating body on the seabed, and each nozzle unit in the nozzle group can spray the high-pressure water into the gap between the seabed and the lower floating body;
s2: lifting the lower floating body: keeping the position of the pile leg still, starting a lifting mechanism arranged on the main ship body, pre-lifting according to the maximum power, observing the output power of the lifting mechanism, stopping lifting the lower floating body if the output power of the lifting mechanism exceeds 80% of the maximum power and the lower floating body is not lifted, and continuously injecting water into the gap; if the lifting mechanism lifts the lower floating body away from the seabed in a state of not exceeding 80% of the maximum output power, water injection is stopped, and the lower floating body is lifted at a set lifting speed until the lower floating body rises to a set position below the main ship body;
s3: pile leg pulling out: after the lower floating body rises to a set position, the ballast water amount in the main hull and the lower floating body is adjusted, the buoyancy of the lower floating body and the main hull is increased, the main hull is kept incomprehensible, and the pile legs move upwards under the action of the lifting mechanism on the main hull until the pile legs are deslimed.
The invention has the advantages that:
1) according to the invention, the lower floating bodies are arranged on the pile legs, when the platform works, the lower floating bodies are used as supports to increase the stability of the ship body, after the work is finished, the gravity of the ship body is well dispersed due to the existence of the lower floating bodies, the pile pulling force is uniformly dispersed, and the lower floating bodies rise more stably; the increase of income mud area, corresponding silt is also more dispersed and littleer to the adsorption affinity of platform, and when high pressure water pump group injected rivers into down body and silt contact surface, the contact surface between platform and silt reduces, and the adsorption affinity reduces, makes the platform more easily break away from the silt constraint.
2) In the invention, the water outlet of the nozzle unit can be remotely controlled, and if the lower floating body part is blocked in sludge in a regional way, water can be separately injected into a problem region to assist in desliming; the periphery of the nozzle is provided with the arc-shaped nozzle protection cover, so that the nozzle is prevented from being blocked by sludge, the drainage effect is achieved, the downward flowing direction of water is changed into the lateral direction, and water can conveniently enter the space between the bottom of the lower floating body and the sludge gap.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of a desliming system with a structural box body capable of entering mud in a large area and overcoming adsorption force.
FIG. 2 is a structural diagram of a nozzle unit of a desliming system with a structural box body capable of entering mud in a large area and overcoming adsorption force.
Fig. 3 to 5 show desliming states of a desliming system with a structural box body for large-area sludge feeding and overcoming adsorption force.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The desliming system with large-area sludge feeding and adsorption force overcoming functions of the structural box body shown in the figures 1 to 5 comprises a lower floating body 1, a high-pressure water pump group 2, a nozzle group 3 and a high-pressure flow passage group 4; the high-pressure pump group 2 is connected to the nozzle group 3 through the high-pressure runner group 4; the nozzle group 3 is arranged on the bottom end face of the lower floating body 1.
The high-pressure flow channel group 4 is provided with four independent high-pressure flow channel modules which are uniformly distributed on the inner wall of the lower surface of the lower floating body 1; the high-pressure water pump set 2 is provided with four high-pressure water pump units 21 which are arranged in parallel, and each high-pressure water pump unit 21 is connected with a group of high-pressure flow passage modules; four high-pressure runner pipe units 41 connected in parallel are arranged in the high-pressure runner module, two branch pipelines are connected in parallel on each high-pressure water pump unit 21, and each branch pipeline is connected with two high-pressure runner pipe units 41 connected in parallel.
The nozzle group 3 is provided with a plurality of nozzle units 31, the nozzle units 31 are distributed along the extending direction of each high-pressure runner pipe unit 41 at equal intervals, the nozzles of the nozzle units 41 penetrate through the lower surface of the lower floating body 1, the periphery of the nozzle is welded on the lower surface of the lower floating body 1, and the jet flow direction of the nozzle units 31 is perpendicular to the lower surface of the lower floating body 1 and is jetted outwards.
The output end of the high-pressure water pump unit 21 is provided with a control valve, so that any one group of high-pressure runner modules on the four groups of high-pressure runner modules can spray water locally or integrally.
An arc-shaped spout protection cover 32 is arranged on the periphery of the spout of the nozzle unit 31, which is exposed out of the lower surface of the lower floating body, and an opening for water to flow out is formed between the spout protection cover 32 and the lower surface of the lower floating body 1 in a welding mode.
A desliming method for overcoming adsorption force by large-area sludge entering of a structural box body comprises the following specific steps:
s1: gap water injection: opening a high-pressure water gun, injecting high-pressure water into a nozzle group communicated with the lower floating body, wherein the flow rate of the high-pressure water is determined according to the supporting area of the lower floating body on the seabed, and each nozzle unit in the nozzle group can spray the high-pressure water into the gap between the seabed and the lower floating body;
s2: lifting the lower floating body: keeping the position of the pile leg still, starting a lifting mechanism arranged on the main ship body, pre-lifting according to the maximum power, observing the output power of the lifting mechanism, stopping lifting the lower floating body if the output power of the lifting mechanism exceeds 80% of the maximum power and the lower floating body is not lifted, and continuously injecting water into the gap; if the lifting mechanism lifts the lower floating body away from the seabed in a state of not exceeding 80% of the maximum output power, water injection is stopped, and the lower floating body is lifted at a set lifting speed until the lower floating body rises to a set position below the main ship body;
s3: pile leg pulling out: after the lower floating body rises to a set position, the ballast water amount in the main hull and the lower floating body is adjusted, the buoyancy of the lower floating body and the main hull is increased, the main hull is kept incomprehensible, and the pile legs move upwards under the action of the lifting mechanism on the main hull until the pile legs are deslimed.
The working principle of the invention is as follows: the lower floating bodies are arranged on the pile legs, the stability of the ship body is improved by using the lower floating bodies as supports during platform operation, the gravity of the ship body is well dispersed due to the existence of the lower floating bodies after the operation is finished, the pile pulling force is uniformly dispersed, and the lower floating bodies rise more stably; the adsorption force of the corresponding sludge on the platform is more dispersed and smaller due to the increase of the sludge inlet area, when the high-pressure water pump set injects water into the contact surface of the lower floating body and the sludge, the contact surface between the platform and the sludge is reduced, the adsorption force is reduced, and the platform is more easily separated from the sludge constraint; the water outlet of the nozzle unit can be remotely controlled, and if the lower floating body part is blocked in sludge in a regional mode, water can be independently injected into a problem region to assist in desliming; the periphery of the nozzle is provided with the arc-shaped nozzle protection cover, so that the nozzle is prevented from being blocked by sludge, the drainage effect is achieved, the downward flowing direction of water is changed into the lateral direction, and water can conveniently enter the space between the bottom of the lower floating body and the sludge gap.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a structure box large tracts of land is gone into mud and is overcome adsorption affinity desliming system which characterized in that: comprises a lower floating body, a high-pressure water pump set, a nozzle set and a high-pressure flow passage set; the high-pressure pump set is connected to the nozzle set through the high-pressure runner set; the nozzle group is arranged on the bottom end face of the lower floating body;
the high-pressure runner group is provided with four independent high-pressure runner modules which are uniformly distributed on the inner wall of the lower surface of the lower floating body; the high-pressure water pump set is provided with four high-pressure water pump units which are arranged in parallel, and each high-pressure water pump unit is connected with a group of high-pressure runner modules; four high-pressure runner pipe units which are connected in parallel are arranged in the high-pressure runner module, two branch pipelines are arranged on each high-pressure water pump unit in parallel, and each branch pipeline is connected with two high-pressure runner pipe units which are connected in parallel;
the nozzle group is provided with a plurality of nozzle units, the nozzle units are distributed at equal intervals along the extension direction of each high-pressure runner pipe unit, the nozzles of the nozzle units penetrate through the lower surface of the lower floating body, the peripheries of the nozzles are welded on the lower surface of the lower floating body, and the jet flow direction of the nozzle units is perpendicular to the lower surface of the lower floating body and is ejected outwards;
the output ends of the high-pressure water pump units are provided with control valves, so that local water spraying or integral water spraying of any one group of high-pressure runner modules on the four groups of high-pressure runner modules is realized.
2. The large-area sludge feeding and adsorption force overcoming desliming system of the structural box body as claimed in claim 1, wherein: the periphery of the nozzle, exposed out of the lower surface of the lower floating body, of the nozzle unit is provided with an arc-shaped nozzle protection cover, the nozzle protection cover and the lower surface of the lower floating body are welded, and an opening for yielding water is reserved on the side face.
3. A desliming method for overcoming adsorption force by large-area sludge entering of a structural box body is characterized by comprising the following steps: the concrete desliming method comprises the following steps:
s1: gap water injection: opening a high-pressure water gun, injecting high-pressure water into a nozzle group communicated with the lower floating body, wherein the flow rate of the high-pressure water is determined according to the supporting area of the lower floating body on the seabed, and each nozzle unit in the nozzle group can spray the high-pressure water into the gap between the seabed and the lower floating body;
s2: lifting the lower floating body: keeping the position of the pile leg still, starting a lifting mechanism arranged on the main ship body, pre-lifting according to the maximum power, observing the output power of the lifting mechanism, stopping lifting the lower floating body if the output power of the lifting mechanism exceeds 80% of the maximum power and the lower floating body is not lifted, and continuously injecting water into the gap; if the lifting mechanism lifts the lower floating body away from the seabed in a state of not exceeding 80% of the maximum output power, water injection is stopped, and the lower floating body is lifted at a set lifting speed until the lower floating body rises to a set position below the main ship body;
s3: pile leg pulling out: after the lower floating body rises to a set position, the ballast water amount in the main hull and the lower floating body is adjusted, the buoyancy of the lower floating body and the main hull is increased, the main hull is kept incomprehensible, and the pile legs move upwards under the action of the lifting mechanism on the main hull until the pile legs are deslimed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011504028.0A CN112482379A (en) | 2020-12-18 | 2020-12-18 | System and method for large-area sludge feeding and adsorption force overcoming desliming of structural box body |
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| CN202011504028.0A CN112482379A (en) | 2020-12-18 | 2020-12-18 | System and method for large-area sludge feeding and adsorption force overcoming desliming of structural box body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277001A (en) * | 2021-06-15 | 2021-08-20 | 华电重工股份有限公司 | Bottom-sitting boat |
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| CN110104153A (en) * | 2019-05-24 | 2019-08-09 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | The hydraulic jet system for sitting bottom adsorption effect is eliminated for submersible |
| CN111391989A (en) * | 2020-04-24 | 2020-07-10 | 交通运输部上海打捞局 | A self-elevating multifunctional salvage engineering vessel |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102108705A (en) * | 2011-03-07 | 2011-06-29 | 江苏现代造船技术有限公司 | Marine wind driven generator mounting and transporting spud leg mud discharging, air injecting and washing device and method |
| CN203172870U (en) * | 2013-01-28 | 2013-09-04 | 中国石油天然气股份有限公司 | Modularized movable artificial island |
| CN107284612A (en) * | 2017-07-20 | 2017-10-24 | 上海振华重工(集团)股份有限公司 | Sit bottom jack up wind-powered electricity generation pile driving barge |
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