CN203023737U - Short-bolt type expansive self-stress grouting hoop - Google Patents

Short-bolt type expansive self-stress grouting hoop Download PDF

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CN203023737U
CN203023737U CN 201220736148 CN201220736148U CN203023737U CN 203023737 U CN203023737 U CN 203023737U CN 201220736148 CN201220736148 CN 201220736148 CN 201220736148 U CN201220736148 U CN 201220736148U CN 203023737 U CN203023737 U CN 203023737U
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flange
saddle plate
seal ring
ring
clamp
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石湘
李聪
焦国洋
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Ocean University of China
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Ocean University of China
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Abstract

本实用新型涉及一种海洋结构物的修复加固,尤其是一种短螺栓型膨胀式自应力灌浆卡箍。包括上卡箍和下卡箍,上卡箍包括上鞍板和上法兰,下卡箍包括下鞍板和下法兰,上鞍板和下鞍板均呈半圆管状,上鞍板和下鞍板之间组成一个轴向的用于放置受损管件的环形内腔,上法兰和下法兰均沿卡箍的轴向两侧设置,法兰和下法兰之间通过短螺栓固定连接,短螺栓沿上法兰和下法兰间隔设置,上法兰和下法兰之间设有轴向密封件,上卡箍和下卡箍的轴向端面设有端面密封圈,端面密封圈的外侧设有压板,端面密封圈通过固定螺栓、压板与环形挡板固定连接。其结构简单,重量轻,允许制造公差大,水下施工方便,具有良好的耐久性和承载能力,适用于海洋结构物的修复加固。

The utility model relates to the repair and reinforcement of marine structures, in particular to a short-bolt type expansion self-stress grouting clamp. Including the upper clamp and the lower clamp, the upper clamp includes the upper saddle plate and the upper flange, the lower clamp includes the lower saddle plate and the lower flange, the upper saddle plate and the lower saddle plate are semicircular tubular, the upper saddle plate and the lower An axial annular cavity for placing damaged pipe fittings is formed between the saddle plates, the upper flange and the lower flange are arranged along the axial sides of the clamp, and the flange and the lower flange are fixed by short bolts Connection, short bolts are arranged at intervals along the upper flange and the lower flange, an axial seal is provided between the upper flange and the lower flange, and an end face sealing ring is provided on the axial end face of the upper clamp and the lower clamp, and the end face seal There is a pressure plate on the outer side of the ring, and the end face sealing ring is fixedly connected with the ring baffle through the fixing bolts, the pressure plate and the annular baffle. Its structure is simple, light in weight, large manufacturing tolerance is allowed, underwater construction is convenient, and it has good durability and load-bearing capacity, and is suitable for the repair and reinforcement of marine structures.

Description

短螺栓型膨胀式自应力灌浆卡箍Short Bolt Type Expansion Self-stressing Grouting Clamp

技术领域technical field

本实用新型涉及一种海洋结构物的修复加固,尤其是一种短螺栓型膨胀式自应力灌浆卡箍。The utility model relates to the repair and reinforcement of marine structures, in particular to a short bolt type expansion type self-stress grouting clamp.

背景技术Background technique

目前,海洋平台管件和海底管线在使用过程中,由于疲劳或腐蚀,长期使用后会出现一定程度的破损,为了保证其正常工作,需要对海洋平台管件和海底管线进行维修加固工作。由于损伤部位发生在水下,湿式焊接难以实施,因此修复工作变得十分困难。At present, during the use of offshore platform pipe fittings and submarine pipelines, due to fatigue or corrosion, there will be a certain degree of damage after long-term use. In order to ensure their normal operation, offshore platform pipe fittings and submarine pipelines need to be repaired and reinforced. Since the damage occurred underwater, wet welding was difficult, making repairs difficult.

实用新型内容Utility model content

本实用新型的目的在于提出了一种短螺栓型膨胀式自应力灌浆卡箍,其结构简单,重量轻,允许制造公差大,水下施工方便,具有良好的耐久性和承载能力,适用于海洋结构物的修复加固。The purpose of this utility model is to propose a short bolt type expansion type self-stressing grouting clamp, which has a simple structure, light weight, allows large manufacturing tolerances, is convenient for underwater construction, has good durability and bearing capacity, and is suitable for marine applications. Repair and reinforcement of structures.

本实用新型是采用以下的技术方案实现的:一种短螺栓型膨胀式自应力灌浆卡箍,包括上卡箍和下卡箍,其中,所述上卡箍包括上鞍板和上法兰,下卡箍包括下鞍板和下法兰,上鞍板和下鞍板均呈半圆管状,上鞍板和下鞍板之间组成一个轴向的用于放置受损管件的环形内腔,上法兰和下法兰均沿卡箍的轴向两侧设置,上法兰与上鞍板的下部端面焊接连接,下法兰与下鞍板的上部端面焊接连接,上法兰和下法兰之间通过短螺栓固定连接,短螺栓沿上法兰和下法兰间隔设置,下卡箍的底部设有入浆口,上卡箍的顶部设有出浆口,入浆口和出浆口均与上鞍板和下鞍板之间的环形内腔连通,受损管件与上鞍板和下鞍板的内壁之间存在环形间隙,该环形间隙内填充有掺有膨胀剂的灌浆层,上法兰和下法兰之间设有轴向密封件,上卡箍和下卡箍的轴向端面设有端面密封圈,端面密封圈位于灌浆层的外侧,端面密封圈与灌浆层之间设有环形挡板,环形挡板焊接在上鞍板和下鞍板的内表面,端面密封圈的外侧设有压板,端面密封圈通过固定螺栓、压板与环形挡板固定连接。The utility model is realized by adopting the following technical solutions: a short-bolt type expansion self-stress grouting hoop, including an upper hoop and a lower hoop, wherein the upper hoop includes an upper saddle plate and an upper flange, The lower clamp includes a lower saddle plate and a lower flange. Both the upper saddle plate and the lower saddle plate are in the shape of a semicircular tube. An axial annular cavity for placing damaged pipe fittings is formed between the upper saddle plate and the lower saddle plate. The upper Both the flange and the lower flange are arranged along the axial sides of the clamp, the upper flange is welded to the lower end face of the upper saddle plate, the lower flange is welded to the upper end face of the lower saddle plate, the upper flange and the lower flange They are fixedly connected by short bolts. The short bolts are arranged at intervals along the upper flange and the lower flange. The bottom of the lower clamp is provided with a slurry inlet, and the top of the upper clamp is provided with a slurry outlet. Both communicate with the annular inner cavity between the upper saddle plate and the lower saddle plate, and there is an annular gap between the damaged pipe fittings and the inner walls of the upper saddle plate and the lower saddle plate, and the annular gap is filled with a grouting layer mixed with expansion agent. There is an axial seal between the upper flange and the lower flange, and an end face sealing ring is provided on the axial end faces of the upper clamp and the lower clamp. The end face sealing ring is located outside the grouting layer, and the end face sealing ring and the grouting layer An annular baffle is provided, and the annular baffle is welded on the inner surface of the upper saddle plate and the lower saddle plate, and a pressure plate is arranged outside the end face sealing ring, and the end face sealing ring is fixedly connected with the annular baffle through fixing bolts, the pressure plate and the annular baffle.

本实用新型中,所述短螺栓贯穿上法兰、轴向密封件和下法兰,短螺栓的一端设有螺母,上法兰和螺母之间、以及下法兰和螺栓头之间均设有垫片,所述轴向密封件通过短螺栓、螺母和垫片固定于上法兰和下法兰之间。In the utility model, the short bolt runs through the upper flange, the axial seal and the lower flange, and one end of the short bolt is provided with a nut, and between the upper flange and the nut, as well as between the lower flange and the bolt head, With gaskets, the axial seal is fixed between the upper and lower flanges by short bolts, nuts and washers.

所述环形挡板包括上环形挡板和下环形挡板,环形挡板与受损管件之间存在径向间隙,上环形挡板与下环形挡板之间存在间隙,环形挡板设有用于固定端部密封圈的螺纹孔,螺纹孔沿环形挡板的圆周面均匀间隔设置。The annular baffle includes an upper annular baffle and a lower annular baffle, there is a radial gap between the annular baffle and the damaged pipe, there is a gap between the upper annular baffle and the lower annular baffle, and the annular baffle is provided for The threaded holes for fixing the sealing ring at the end are evenly spaced along the circumferential surface of the annular baffle.

所述端面密封圈包括上端面密封圈和下端面密封圈,上端面密封圈和下端面密封圈均呈半圆环形状,上端面密封圈和下端面密封圈与受损管件之间无径向间隙,上端面密封圈和下端面密封圈之间设有密封垫层。The end face seal ring includes an upper end face seal ring and a lower end face seal ring, the upper end face seal ring and the lower end face seal ring are in the shape of a semicircle, and there is no radial direction between the upper end face seal ring, the lower end face seal ring and the damaged pipe fitting. There is a gasket layer between the upper end face seal ring and the lower end face seal ring.

本实用新型的有益效果是:该卡箍结构简单紧凑,重量轻,其钢结构重量比同等加固管件尺寸的长螺栓卡箍减少30%以上;短螺栓的轴向密封结构使得灌浆膨胀压力更加均匀,卡箍的轴向滑动承载力比同等加固管件尺寸的长螺栓卡箍提高20%以上;水下施工方便,施工费用低,同时也提高了水下施工的安全性,具有良好的耐久性和承载能力,适用于海洋结构物的修复加固。The beneficial effects of the utility model are: the clamp is simple and compact in structure, light in weight, and its steel structure weight is reduced by more than 30% compared with the long bolt clamp of the same reinforced pipe size; the axial sealing structure of the short bolt makes the grouting expansion pressure more uniform , the axial sliding bearing capacity of the clamp is more than 20% higher than that of the long bolt clamp with the same reinforced pipe size; the underwater construction is convenient, the construction cost is low, and the safety of the underwater construction is also improved, and it has good durability and Bearing capacity, suitable for repair and reinforcement of marine structures.

附图说明Description of drawings

图1是本实用新型的主视剖视图;Fig. 1 is the front sectional view of the utility model;

图2是短螺栓连接处的局部放大图;Figure 2 is a partial enlarged view of the short bolt connection;

图3是本实用新型的俯视剖视图;Fig. 3 is a top sectional view of the utility model;

图4是端面密封环形挡板的示意图;Fig. 4 is a schematic diagram of an end face sealing annular baffle;

图5是端面密封圈的示意图。Fig. 5 is a schematic diagram of an end face sealing ring.

图中:1上卡箍;2出浆口;3上鞍板;4上法兰;5下法兰;6下鞍板;7出浆口;8下卡箍;9灌浆层;10受损管件;11短螺栓;12螺母;13固定螺栓;14端面密封圈;15环形挡板;16轴向密封件;17垫片;18压板;19密封垫层。In the figure: 1 upper clamp; 2 slurry outlet; 3 upper saddle plate; 4 upper flange; 5 lower flange; 6 lower saddle plate; 7 slurry outlet; 8 lower clamp; 9 grouting layer; 10 damaged Pipe fittings; 11 short bolts; 12 nuts; 13 fixing bolts; 14 end face sealing ring; 15 ring baffle; 16 axial seal;

具体实施方式Detailed ways

下面结合附图对本实用新型做进一步说明。Below in conjunction with accompanying drawing, the utility model is further described.

图1至图3是本实用新型所述的短螺栓型膨胀式自应力灌浆卡箍,包括上卡箍1和下卡箍8,上卡箍包括上鞍板3和上法兰4,下卡箍包括下鞍板6和下法兰5,上鞍板3和下鞍板6均呈半圆管状,上鞍板3和下鞍板6之间组成一个轴向的用于放置受损管件10的环形内腔。上法兰4和下法兰5均沿卡箍的轴向两侧设置,上法兰4与上鞍板3的下部端面焊接连接,下法兰5与下鞍板6的上部端面焊接连接。上法兰4和下法兰5之间通过短螺栓11固定连接,短螺栓11沿上法兰4和下法兰5间隔设置。Fig. 1 to Fig. 3 are the short bolt type expansion type self-stressing grouting hoop described in the utility model, comprise upper hoop 1 and lower hoop 8, upper hoop includes upper saddle plate 3 and upper flange 4, lower hoop The hoop includes a lower saddle plate 6 and a lower flange 5. Both the upper saddle plate 3 and the lower saddle plate 6 are in the shape of a semicircular tube, and an axial space for placing a damaged pipe 10 is formed between the upper saddle plate 3 and the lower saddle plate 6. Ring cavity. The upper flange 4 and the lower flange 5 are arranged along the axial sides of the clamp, the upper flange 4 is welded to the lower end surface of the upper saddle plate 3 , and the lower flange 5 is welded to the upper end surface of the lower saddle plate 6 . The upper flange 4 and the lower flange 5 are fixedly connected by short bolts 11 , and the short bolts 11 are arranged at intervals along the upper flange 4 and the lower flange 5 .

下卡箍8的底部设有入浆口7,上卡箍1的顶部设有出浆口2,入浆口7和出浆口2均与上鞍板3和下鞍板6之间的环形内腔连通,受损管件10与上鞍板3和下鞍板6的内壁之间存在环形间隙,该环形间隙内填充有掺有膨胀剂的灌浆层9。上法兰4和下法兰5之间设有轴向密封件16,短螺栓11贯穿上法兰4、轴向密封件16和下法兰5,短螺栓11一端设有螺母12,上法兰4和螺母之间、以及下法兰5和螺栓头之间均设有垫片17,轴向密封件16通过短螺栓11、螺母12和垫片17固定于上法兰4和下法兰5之间,用于防止灌浆泄漏。上卡箍1和下卡箍8的两轴向端面均设有端面密封圈14,端面密封圈14位于灌浆层9的外侧。所述端面密封圈14包括上端面密封圈和下端面密封圈,上端面密封圈和下端面密封圈均呈半圆环形状,上端面密封圈和下端面密封圈与受损管件10之间无径向间隙,上端面密封圈和下端面密封圈之间设有密封垫层19,用于防止上端部密封圈和下端面密封圈在环向存在灌浆泄漏的间隙。端面密封圈14与灌浆层9之间设有环形挡板15,环形挡板15包括上环形挡板和下环形挡板,上环形挡板和下环形挡板分别焊接在上鞍板和下鞍板的内表面。环形挡板15在径向与受损管件10之间存在径向间隙,上环形挡板与下环形挡板之间存在间隙,在环形挡板15开有用于固定端部密封圈14的螺纹孔,螺纹孔沿环形挡板15的圆周面均匀间隔设置。端面密封圈14的外侧设有压板18,端面密封圈14通过固定螺栓13、压板18与环形挡板15固定连接,用于防止灌浆泄漏。The bottom of the lower clamp 8 is provided with a slurry inlet 7, and the top of the upper clamp 1 is provided with a slurry outlet 2, the slurry inlet 7 and the slurry outlet 2 are connected to the annular space between the upper saddle plate 3 and the lower saddle plate 6 The inner cavity communicates, and there is an annular gap between the damaged pipe fitting 10 and the inner walls of the upper saddle plate 3 and the lower saddle plate 6, and the annular gap is filled with a grouting layer 9 mixed with an expansion agent. An axial seal 16 is arranged between the upper flange 4 and the lower flange 5, and the short bolt 11 runs through the upper flange 4, the axial seal 16 and the lower flange 5, and one end of the short bolt 11 is provided with a nut 12, the upper method A gasket 17 is provided between the flange 4 and the nut, and between the lower flange 5 and the bolt head, and the axial seal 16 is fixed on the upper flange 4 and the lower flange by short bolts 11, nuts 12 and gaskets 17 5, used to prevent grouting from leaking. Both axial end surfaces of the upper clamp 1 and the lower clamp 8 are provided with end face sealing rings 14 , and the end face sealing rings 14 are located outside the grouting layer 9 . The end face seal ring 14 includes an upper end face seal ring and a lower end face seal ring, both of which are in the shape of a semicircle, and there is no gap between the upper end face seal ring, the lower end face seal ring and the damaged pipe fitting 10. For the radial gap, a gasket layer 19 is provided between the upper end sealing ring and the lower end sealing ring, which is used to prevent the grouting leakage gap between the upper end sealing ring and the lower end sealing ring in the circumferential direction. An annular baffle 15 is arranged between the end face sealing ring 14 and the grouting layer 9. The annular baffle 15 includes an upper annular baffle and a lower annular baffle, and the upper annular baffle and the lower annular baffle are respectively welded on the upper saddle and the lower saddle. the inner surface of the board. There is a radial gap between the annular baffle 15 and the damaged pipe 10 in the radial direction, there is a gap between the upper annular baffle and the lower annular baffle, and a threaded hole for fixing the end sealing ring 14 is opened on the annular baffle 15 , the threaded holes are evenly spaced along the circumferential surface of the annular baffle 15 . A pressure plate 18 is provided on the outside of the end face sealing ring 14, and the end face sealing ring 14 is fixedly connected with the annular baffle plate 15 through the fixing bolts 13 and the pressure plate 18 to prevent grouting from leaking.

Claims (4)

1. a lag bolt type expansion is from the stress technique of grouted clamp, comprise front band (1) and lower catch hoop (8), it is characterized in that: described front band comprises saddle plate (3) and upper flange (4), lower catch hoop comprises lower saddle plate (6) and lower flange (5), upper saddle plate (3) and lower saddle plate (6) all are the semicircle tubulose, form one between upper saddle plate (3) and lower saddle plate (6) and axial be used for placing the annular cavity of impaired pipe fitting (10), upper flange (4) and lower flange (5) all arrange along the axial both sides of clip, upper flange (4) is welded to connect with the lower end surface of upper saddle plate (3), lower flange (5) is welded to connect with the upper end of lower saddle plate (6), be fixedly connected with by lag bolt (11) between upper flange (4) and lower flange (5), lag bolt (11) is along upper flange (4) and lower flange (5) interval setting, the bottom of lower catch hoop (8) is provided with pulp inlet (7), the top of front band (1) is provided with grout outlet (2), pulp inlet (7) and grout outlet (2) all with upper saddle plate (3) and lower saddle plate (6) between annular cavity be communicated with, there is the annular space between the inwall of impaired pipe fitting (10) and upper saddle plate (3) and lower saddle plate (6), be filled with the grout blanket (9) that is mixed with dilatant in this annular space, be provided with axial seal (16) between upper flange (4) and lower flange (5), the axial end of front band (1) and lower catch hoop (8) is provided with end-face seal ring (14), end-face seal ring (14) is positioned at the outside of grout blanket (9), be provided with ring baffle (15) between end-face seal ring (14) and grout blanket (9), ring baffle (15) is welded on the internal surface of saddle plate and lower saddle plate, the outside of end-face seal ring (14) is provided with pressing plate (18), end-face seal ring (14) is by fixing bolt (13), pressing plate (18) is fixedly connected with ring baffle (15).
2. lag bolt type expansion according to claim 1 is from the stress technique of grouted clamp, it is characterized in that: described lag bolt (11) runs through upper flange (4), axial seal (16) and lower flange (5), one end of lag bolt (11) is provided with nut (12), be equipped with pad (17) between upper flange (4) and nut and between lower flange (5) and bolt head, described axial seal (16) is fixed between upper flange (4) and lower flange (5) by lag bolt (11), nut (12) and pad (17).
3. lag bolt type expansion according to claim 1 is from the stress technique of grouted clamp, it is characterized in that: described ring baffle (15) comprises ring baffle and lower ring baffle, there is radial clearance between ring baffle (15) and impaired pipe fitting, there is the gap between upper ring baffle and lower ring baffle, ring baffle (15) is provided with the tapped hole for the anchor portion seal ring, and tapped hole is along the even interval setting of the circumferential surface of ring baffle.
4. lag bolt type expansion according to claim 1 is from the stress technique of grouted clamp, it is characterized in that: described end-face seal ring (14) comprises upper-end surface seal ring and lower end surface seal ring, upper-end surface seal ring and lower end surface seal ring all are the semicircular ring shape, without radial clearance, be provided with sealing bed course (19) between upper-end surface seal ring and lower end surface seal ring between upper-end surface seal ring and lower end surface seal ring and impaired pipe fitting (10).
CN 201220736148 2012-12-28 2012-12-28 Short-bolt type expansive self-stress grouting hoop Expired - Lifetime CN203023737U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220736148 CN203023737U (en) 2012-12-28 2012-12-28 Short-bolt type expansive self-stress grouting hoop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220736148 CN203023737U (en) 2012-12-28 2012-12-28 Short-bolt type expansive self-stress grouting hoop

Publications (1)

Publication Number Publication Date
CN203023737U true CN203023737U (en) 2013-06-26

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105351677A (en) * 2015-10-26 2016-02-24 中国华冶科工集团有限公司 Method for repairing gas pipeline system in gas delivering process
CN109882744A (en) * 2019-04-25 2019-06-14 韦玉健 A kind of fast accurate is not necessarily to the device for detecting sealability to pressurize to device
CN113718740A (en) * 2021-07-22 2021-11-30 海洋石油工程股份有限公司 Novel repairing and reinforcing method for jacket platform structure rod piece

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105351677A (en) * 2015-10-26 2016-02-24 中国华冶科工集团有限公司 Method for repairing gas pipeline system in gas delivering process
CN109882744A (en) * 2019-04-25 2019-06-14 韦玉健 A kind of fast accurate is not necessarily to the device for detecting sealability to pressurize to device
CN113718740A (en) * 2021-07-22 2021-11-30 海洋石油工程股份有限公司 Novel repairing and reinforcing method for jacket platform structure rod piece

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