CN214618150U

CN214618150U - Special tool for large-diameter pipeline and casing curved surface space construction

Info

Publication number: CN214618150U
Application number: CN202120539387.3U
Authority: CN
Inventors: 任晓飞; 孙坤
Original assignee: Sanmen Nuclear Power Co Ltd
Current assignee: Sanmen Nuclear Power Co Ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-11-05
Anticipated expiration: 2031-03-16

Abstract

The utility model belongs to the technical field of pipeline installation, and particularly discloses a special tool for the construction of a curved surface space of a large-diameter pipeline and a sleeve, which comprises a filling plate and a vertical rod connected on the filling plate; the filling plate comprises a curved operation surface, a mounting surface, an inner side surface and an outer side surface; the upright rods are fixed on the mounting surface; the curved operation surface is provided with an inner curved edge used for being matched with the outer wall of the large-caliber pipeline and an outer curved edge used for being matched with the inner wall of the sleeve, and the vertical projection of the installation surface on the curved operation surface does not exceed the inner curved edge and the outer curved edge of the curved operation surface. The utility model discloses can fully, evenly pack in the pipe gap with packing to can ensure to pack to compress tightly, tamp, avoid pipeline and casing pipe gap problem that groundwater or mud leaked appears, easy operation, convenient practicality.

Description

Special tool for large-diameter pipeline and casing curved surface space construction

Technical Field

The utility model belongs to the technical field of the piping erection, concretely relates to specialized tool that is used for heavy-calibre pipeline and sleeve pipe curved surface space to be under construction.

Background

AP1000 nuclear power station circulating water system has the function with nuclear power station operation waste heat discharge, play an important role in the power station operation process, in this circulating water system pipeline installation, steel circulating water pipeline can establish ties large-scale structures such as circulating pump room, steam turbine room, siphon well, these buildings can set up the wall bushing in circulating water pipeline passing wall department in order to protect circulating water pipeline, in order to prevent the emergence of wall bushing leakage in the work progress, according to the design requirement, need to pack waterproof material to seal the clearance between circulating water pipeline and the bushing.

The quality of sealing and leakage-proof treatment of a circulating water pipeline and a wall casing is particularly important, and the installation engineering of the circulating water pipeline of the AP1000 nuclear power plant has the characteristics of deep buried (about 16.45 meters), large underground water level pressure, long wall-penetrating casing (taking a steam turbine room as an example, the width of the wall is 1.6 meters), small gap between the casing and the pipeline, large pipeline caliber (the caliber reaches 4.1 meters), long filler sealing treatment area and the like, so that great challenges are brought to leakage-proof plugging of the pipeline. The traditional pipeline gap filling is that fillers (such as hemp oil, concrete and the like) are tamped into a gap area by means of a rod type or a tubular tool, the curved surface of the circulating water pipeline with the construction characteristics is sealed and leak-proof, the construction operation difficulty is high, the fillers are difficult to be smoothly and conveniently fed into a specified gap position to be compacted and tamped by the aid of the common tool at present, the phenomena of insufficient and uneven filling are easily caused, and then the problems of running, overflowing, dripping, leaking and the like of underground water or slurry in the gap between the pipeline and the sleeve are caused.

Therefore, in order to ensure the filling and sealing quality of the gap between the circulating water pipeline wall bushing and the circulating water pipeline of the AP1000 nuclear power station and reduce the leakage problem caused by insufficient and uneven filling, a special tool convenient for the gap filling construction between the large-diameter pipeline and the wall bushing needs to be developed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a specialized tool for construction of heavy-calibre pipeline and sleeve pipe curved surface space can fully, evenly pack in the pipeline clearance with packing to can ensure to compress tightly, tamp, convenient practicality with packing.

In order to achieve the above purpose, the utility model adopts the following specific technical scheme:

a special tool for the construction of curved surface space of a large-diameter pipeline and a sleeve comprises a filling plate and a vertical rod connected to the filling plate; the filling plate comprises a curved operation surface, a mounting surface, an inner side surface and an outer side surface; one surface of the filling plate facing the vertical rod is a mounting surface, the surface of the filling plate far away from the vertical rod is a curved operation surface, and the curved operation surface and the mounting surface are connected through the inner side surface and the outer side surface; the upright rods are fixed on the mounting surface; the curved operation surface is provided with an inner curved edge used for being matched with the outer wall of the large-caliber pipeline and an outer curved edge used for being matched with the inner wall of the sleeve, and the vertical projection of the installation surface on the curved operation surface does not exceed the inner curved edge and the outer curved edge of the curved operation surface. The filling board can be hollow core slab also can be solid core slab, in use, promote the pole setting, curved shape operation face through filling the board will pack and push away to clearance position and compress tightly the tamping, the design that interior curved edge and the outer curved edge of curved shape operation face agreed with heavy-calibre pipeline outer wall and sleeve pipe inner wall respectively, can maximize the region of action of curved shape operation face (can reach the complete coverage construction in curved surface space cross section scope), avoid because of the multiplexer utensil is difficult to reach these positions that curved shape space border position caused and do not have the packing to fill or the not enough problem of filling, the homogeneity and the sufficiency of filling have been improved, curved shape space border region has also been reduced and has been compressed tightly, the degree of difficulty of tamping.

Preferably, the inner side face is attached to the outer wall of the large-caliber pipeline, and the outer side face is attached to the inner wall of the sleeve. Through the design that makes the side of stemming the board laminate with heavy-calibre pipeline outer wall and sleeve pipe inner wall respectively, can be when curved surface space boundary department filler construction, the effect direction of control and maintenance power is used for compacting the tamping of the regional filler of edge fast.

Preferably, the upright is a telescopic rod to deliver the filling material to different depth positions by its length adjustment.

In the engineering construction, the pipeline penetrates through the wide wall body, the sealing material is difficult to deliver to a specified position, and the design can effectively solve the accessibility problem in the actual operation of daily tools.

Preferably, the upright rod comprises a fixed part, a telescopic part movably sleeved in the fixed part and a nut used for fixing the telescopic part; an external thread is arranged at one end of the fixed part connected with the telescopic part; the nut is sleeved at the bottom end of the telescopic part and is matched with the external thread of the fixing part through an internal conical thread to lock the telescopic part.

Preferably, the external thread setting area of fixed part has seted up a plurality of grooves of lining up along pole setting length direction, should link up the groove setting at the fixed part port, runs through in fixed part outer wall thickness direction, and its setting can improve the nut when screwing locking fixed part port department and the expansion part between frictional force, ensures that the fixed part can hold the expansion part tightly, promotes the locking effect.

Preferably, the vertical rod is perpendicular to the filling board.

Preferably, the bilateral symmetry of pole setting is equipped with the rib pole, and the periphery cover of pole setting is equipped with a mount pad rib pole one end is fixed in the mount pad, the other end is fixed in the installation face of packing plate. The reinforcing rib rod plays a role in reinforcing the overall structural strength of the front end of the special tool, the possibility that the special tool is damaged in the using process is reduced, and the compaction effect of packing construction is ensured.

Preferably, the reinforcing rib bar is detachably connected to the packing plate.

Preferably, the upright rod is detachably connected with the filling board.

Preferably, the distance between the inner curved edge and the outer curved edge does not exceed the minimum width of the curved surface space between the large-caliber pipeline and the sleeve, so that the filling construction effect can be ensured when the width of each part of the curved surface space is different due to position deviation in pipeline installation.

The utility model discloses following beneficial effect has:

1. the utility model discloses a design of the curved shape operation face of plugboard has realized that curved surface space packs the full coverage of construction on the cross-section, but has solved the accessibility problem of curved surface space packing construction on the degree of depth through the scalable regulation design of pole setting, and both combine to ensure the sufficiency and the homogeneity of packing construction, have improved filling quality, effectively reduce the leakage problem in pipe clearance.

2. The utility model discloses a design of strengthening rib pole improves overall structure's stability to supplementary pole setting ensures the tamping effect that compresses tightly of packing construction, further ensures filling quality, avoids the seepage.

3. The utility model discloses successfully solved between sleeve pipe and pipeline long distance, narrow clearance space's filler construction operation difficult problem, moreover the utility model discloses processing is simple and easy, easy dismounting, and easy operation is a convenient practical instrument.

4. The utility model discloses not only be applicable to AP1000 nuclear power station circulating water system circulating water pipeline and wall body sleeve pipe clearance's sealing filler construction, through the adaptability modification of size, also be applicable to the sealing filler construction operation in clearance between other transport pipe ways and the sleeve pipe.

Drawings

FIG. 1: the utility model discloses embodiment 1's schematic structure diagram.

FIG. 2: the utility model discloses embodiment 1's assembly drawing.

In the figure: 1-a filling plate, 2-a vertical rod, 3-a mounting seat and 4-a reinforcing rib rod; 11-curved operation surface, 12-installation surface, 13-inner side surface, 14-outer side surface, 21-fixing part, 22-telescopic part, 23-nut, 24, 31 and 41-bolt with cap; 211-through slot.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Example 1

A special tool for the construction of a curved surface space of a large-caliber pipeline and a sleeve pipe is shown in figures 1-2 and comprises a filling plate 1 and a vertical rod 2 connected to the filling plate 1; the packing plate comprises a curved working surface 11, a mounting surface 12 opposite to and parallel to the curved working surface 11, and an inner side surface 13 and an outer side surface 14 which are opposite to and parallel to each other and connect the curved working surface 11 and the mounting surface 12; the curved operation surface 11 is provided with an inner curved edge for fitting the outer wall of the large-caliber pipeline and an outer curved edge for fitting the inner wall of the sleeve; in this embodiment, a vertical projection of the mounting surface 12 on the curved operation surface 11 coincides with the curved operation surface 11, the inner side surface 13 is completely attached to the outer wall of the large-caliber pipeline, and the outer side surface 14 is completely attached to the inner wall of the casing; the pole setting 2 is perpendicular to fill the setting of cocking block 1, fill and be equipped with the mounting hole of pole setting 2 on the cocking block 1, 2 bottom of pole setting insert the mounting hole and fixed through taking cap bolt 24.

The upright rod 2 is a telescopic rod and specifically comprises a fixing part 21, a telescopic part 22 movably sleeved in the fixing part 21 and a nut 23 for fixing the telescopic part 22; an external thread is arranged at one end of the fixing part 21 connected with the telescopic part 22; the external thread setting area of the fixing part 21 is provided with a plurality of through grooves 211 along the length direction of the upright rod 2; the nut 23 is sleeved at the bottom end of the telescopic part 22 and is matched with the external thread of the fixing part 21 through an internal conical thread to lock the telescopic part 22. The periphery cover of pole setting 2 is equipped with a mount pad 3, the through-hole has been seted up respectively to both sides on the mount pad 3 to supply to take cap bolt 31 to put into and be fixed in mount pad 3 fixed part 21. Reinforcing rib rods 4 are symmetrically arranged on two sides of the vertical rod 2, mounting holes of the reinforcing rib plates 4 are formed in the packing plate 1, one end of each reinforcing rib rod 4 and the mounting seat 3 are integrally formed, the other end of each reinforcing rib rod is provided with a mounting portion, and a bolt 41 with a cap penetrates through the mounting portion and the mounting hole to fix the end of each reinforcing rib rod on the mounting surface 12 of the packing plate 1.

The radian of the curved surface of the packing plate 1 is determined by the pipe diameters of a large-diameter pipeline and a sleeve, the width of the curved surface is determined according to the width of a gap between the large-diameter pipeline and the sleeve, and the specific width of the curved surface must meet the following requirements: the distance between the inner curved edge and the outer curved edge does not exceed the minimum width of the curved surface space between the large-caliber pipeline and the sleeve (in the embodiment, the distance between the inner curved edge and the outer curved edge is the width of the packing plate 1).

In practical application, the size of the special-purpose filling plate 1 and the length of the upright rod 2 are determined according to the calibers and gaps of the filled pipelines and sleeves, corresponding parts (all parts are made of high-quality carbon steel in the embodiment) are machined, and then the components are assembled. After the equipment is accomplished, when filling the operation, will wait to pack sealing material tar hemp silk and concrete mixture earlier and put to the clearance oral area, then hold pole setting 2, aim at bent shape working face 11 clearance position, then inside advancing the clearance with packing, when the length of pole setting 2 is not enough, unscrew nut 23, adjust pars contractilis 22 to expectation length tighten nut 23 again can, fill up the packing according to the construction requirement of packing, the drum is pounded, the compaction, can accomplish circulating water pipeline and the sheathed tube sealed construction operation of wearing the wall.

Use this embodiment specialized tool to accomplish all circulating water pipeline and the sealed installation work of sleeve pipe space of first-stage engineering at present, totally 32, through specialized tool's use, all sealed construction operations can be carried out smoothly, and circulating water pipeline all normally operates, and the problem of leaking does not appear in the pipeline clearance.

This detailed description is to be construed as illustrative only and not limiting, and any changes that may be made by a person skilled in the art after reading the present disclosure are intended to be protected by the patent laws within the scope of the appended claims.

Claims

1. The utility model provides a specialized tool that is used for heavy-calibre pipeline and sleeve pipe curved surface space to be under construction which characterized in that: comprises a filling plate (1) and a vertical rod (2) connected to the filling plate (1); the packing plate (1) comprises a curved operation surface (11), a mounting surface (12), an inner side surface (13) and an outer side surface (14); one surface of the packing plate (1) facing the vertical rod (2) is a mounting surface (12), one surface far away from the vertical rod (2) is a curved operation surface (11), and the curved operation surface (11) and the mounting surface (12) are connected through the inner side surface (13) and the outer side surface (14); the upright rod (2) is fixed on the mounting surface (12); the curved operation surface (11) is provided with an inner curved edge used for being matched with the outer wall of the large-caliber pipeline and an outer curved edge used for being matched with the inner wall of the sleeve, and the vertical projection of the installation surface (12) on the curved operation surface (11) does not exceed the inner curved edge and the outer curved edge of the curved operation surface (11).

2. The special tool for the construction of the curved surface space of the large-caliber pipeline and the sleeve according to claim 1, wherein: the inner side face (13) is attached to the outer wall of the large-caliber pipeline, and the outer side face (14) is attached to the inner wall of the sleeve.

3. The special tool for the construction of the curved surface space of the large-caliber pipeline and the sleeve according to claim 1, wherein: the upright stanchion (2) is a telescopic pole.

4. The special tool for the construction of the curved surface space of the large-caliber pipeline and the sleeve according to claim 3, wherein: the upright rod (2) comprises a fixed part (21), an expansion part (22) movably sleeved in the fixed part (21) and a nut (23) used for fixing the expansion part (22); an external thread is arranged at one end of the fixing part (21) connected with the telescopic part (22); the nut (23) is sleeved at the bottom end of the telescopic part (22) and is matched with the external thread of the fixing part (21) through an internal conical thread to lock the telescopic part (22).

5. The special tool for the construction of the curved surface space of the large-caliber pipeline and the sleeve according to claim 4, wherein: the external thread setting area of the fixing part (21) is provided with a plurality of through grooves (211) along the length direction of the vertical rod (2).

6. The special tool for the construction of the curved surface space of the large-caliber pipeline and the sleeve according to claim 1, wherein: the upright rod (2) is perpendicular to the filling plate (1).

7. The special tool for the construction of the curved surface space of the large-caliber pipeline and the sleeve according to claim 6, wherein: the bilateral symmetry of pole setting (2) is equipped with stiffener (4), and the periphery cover of pole setting (2) is equipped with a mount pad (3), stiffener (4) one end is fixed in mount pad (3), the other end is fixed in install face (12) of packing plate (1).

8. The special tool for the construction of the curved surface space of the large-caliber pipeline and the sleeve according to claim 7, wherein: the reinforcing rib rods (4) are detachably connected with the filling plate (1).

9. The special tool for the construction of the curved surface space of the large-caliber pipeline and the sleeve according to claim 1, wherein: the upright rod (2) is detachably connected with the filling plate (1).

10. The special tool for the construction of the curved surface space of the large-caliber pipeline and the sleeve according to claim 1, wherein: the distance between the inner curved edge and the outer curved edge does not exceed the minimum width of a curved surface space between the large-caliber pipeline and the sleeve.