CN217382162U - Weldable glue injection forming leaking stoppage hoop for leaking stoppage of large-diameter steel pipe under pressure - Google Patents
Weldable glue injection forming leaking stoppage hoop for leaking stoppage of large-diameter steel pipe under pressure Download PDFInfo
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- CN217382162U CN217382162U CN202221467751.0U CN202221467751U CN217382162U CN 217382162 U CN217382162 U CN 217382162U CN 202221467751 U CN202221467751 U CN 202221467751U CN 217382162 U CN217382162 U CN 217382162U
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Abstract
The utility model relates to a large-diameter steel pipe area is pressed leaking stoppage and is shaped leaking stoppage staple bolt with weldable injecting glue. In order to overcome the defects of the prior art, the weldable glue injection forming leaking stoppage hoop for leaking stoppage under pressure of the large-diameter steel pipe comprises two arc hoops, bolts and a sealing cushion plate, wherein at least four arc inner convex edges are arranged on the inner side surface of at least one arc hoop, two ends of the middle arc inner convex edge are respectively connected by short longitudinal bulges, two ends of the arc inner convex edge at two sides are respectively connected by long longitudinal bulges, the periphery of the sealing cushion plate is pressed on the outer wall of a pipeline to be leaked by the middle arc inner convex edge and the short longitudinal bulge connected with the middle arc inner convex edge, an glue injection space is enclosed by the middle arc inner convex edge and the short longitudinal bulge connected with the middle arc inner convex edge between the sealing cushion plate and the outer wall of the pipeline to be leaked, and a plurality of glue injection pipe orifices are also arranged in the arc hoops. The utility model relates to a science, the shutoff is reliable, is difficult for leaking again, is fit for the shutoff heavy-calibre water delivery steel pipe.
Description
Technical Field
The utility model relates to a large-diameter steel pipe area is pressed leaking stoppage and is formed leaking stoppage staple bolt with injecting glue of welding.
Background
Widely used staple bolt leaking stoppage when the pipeline leaking stoppage, current leaking stoppage staple bolt include two arc staple bolts, bolt and sealed backing plate, and two arc staple bolts both ends are equipped with the connecting plate respectively, and it has relative through-hole to open on the connecting plate, the bolt is worn to establish in above-mentioned through-hole, connects into the annular with two arc staple bolts, encircles on treating leaking stoppage pipeline, sealed backing plate presss from both sides at the arc staple bolt and treats between the leaking stoppage pipeline to the complete covering is on treating leaking stoppage point.
The Chinese patent application with publication number CN101725792A, which is published in 2010-06-09, discloses a pipeline pressure leakage blocking method and a leakage blocking device, the device adopts the idea of firstly dredging and then blocking, and a pressure relief drainage device on a leakage blocking device is used for draining away leakage water and reducing the pressure of leakage flow, so that the construction difficulty is reduced, and the operation is convenient. The leakage stopper with the pressure relief drainage device is arranged at the leakage position of the pipeline, after primary leakage stoppage is realized, the leakage stoppage hoop body and the pipeline are welded into a whole in time, and therefore the purpose of final leakage stoppage is achieved. The pipeline leakage stopper with the pressure relief and drainage device comprises a leakage stopping hoop body with the pressure relief and drainage device and a lower hoop. The body is an arc plate with folded edges on two sides, and bolt holes are arranged on the folded edges of the arc plate. The body is provided with four reinforcing rib plates, and the pressure relief drainage device is fixed on the drainage hole of the outer ring of the body through welding. The inner ring of the body is provided with a sealing ring fixing ring, and the sealing ring is arranged in the sealing ring fixing ring. The lower anchor ear is an arc plate with two folded edges, and bolt holes are arranged on the folded edges of the arc plate.
However, the arc shape of the outer circumference of the arc-shaped pipe of the hoop is required to be identical, the shape of the outer circumference of the middle and small-diameter pipes is more regular, the large-diameter pipe with the diameter of more than 1 m is influenced by self, internal fluid gravity and external support, the outer circumference of the large-diameter pipe is often deformed, the inner arc shape of the hoop manufactured in advance is difficult to be identical with the outer circumference of the large-diameter pipe around a leakage point, one surface of the sealing base plate at the two ends of the large-diameter arc-shaped hoop is contacted with the end part of the arc-shaped hoop, the other surface of the sealing base plate is connected with the outer circumference of the large-diameter pipe, and during installation, the stroke is large and the pipe is subjected to shear deformation. The installation often appears that the sealing backing plate at the end of the arc-shaped hoop is already crushed, and the leakage point is not completely blocked, as shown in figure 1. And the ordinary hoop leakage stopping mechanism is only fixed by bolts, and when the bolts are loosened, the leakage stopping mechanism is easy to cause repeated leakage.
2018.08.14 the authorized bulletin number is: CN 207729133U's china utility model discloses a gaseous medium pipeline flange leaks online processing apparatus, including anchor clamps main part and otic placode, it has notes agent mouth and exhaust hole to open in the anchor clamps main part, it is connected with notes agent valve on the agent mouth to annotate, be connected with discharge valve in the exhaust hole, be provided with the recess in the anchor clamps main part, be provided with the sealing strip on the groove limit of recess, the another side laminating gaseous medium pipeline of sealing strip, be provided with sealed the pad on the otic placode. The utility model has the advantages that the whole construction process is processed on line, and the production efficiency of the equipment is improved; the work of plugging the blind plate, the mounting platform and the escape passage is omitted, the maintenance time is saved, and the construction efficiency is improved; the sparkless construction avoids the risks of fire, explosion and the like caused by the leakage of the gas medium. The sealing strip is arranged between the clamp main body and the pipeline, and the sealing gasket is arranged on the lug plate, so that the sealing effect of the device is better, the exhaust holes and the exhaust valves are arranged, and the air pressure in the clamp can be timely removed.
The device installs the anchor clamps (promptly staple bolt) of establishing the recess additional in leaking the method dish periphery, and it has notes agent mouth and exhaust hole to open on the anchor clamps main part, through annotating the accelerator to the recess in, realizes the sealed of leaking the method dish through the accelerator. In this way, the accelerator is in direct contact with the leaked medium and is impacted by the leaked medium when not solidified, so that gaps are easy to appear, and trace leakage which is difficult to eliminate is caused.
Disclosure of Invention
The to-be-solved technical problem of the utility model is how to overcome prior art's above-mentioned defect, provide a heavy-calibre steel pipe area leaking stoppage is with gluey shaping leaking stoppage staple bolt that can weld.
For solving above-mentioned technical problem, this welding injecting glue takes shape leaking stoppage staple bolt for leaking stoppage under pressure of heavy-calibre steel pipe, including two arc staple bolts, bolt and sealed backing plate, two arc staple bolt both ends are equipped with the connecting plate respectively, and it has relative through-hole to open on the connecting plate, the bolt is worn to establish in above-mentioned through-hole, connects into the annular with two arc staple bolts, encircles on treating the leaking stoppage pipeline, sealed backing plate presss from both sides arc staple bolt and treats between the leaking stoppage pipeline to cover completely on treating the leaking stoppage point, its characterized in that: at least four arc inner convex edges are arranged on the inner side surface of at least one arc hoop, two ends of the middle two arc inner convex edges are respectively connected by short longitudinal bulges, two ends of the arc inner convex edges at two sides are respectively connected by long longitudinal bulges, the periphery of the sealing gasket is pressed on the outer wall of the pipeline to be plugged by the middle two arc inner convex edges and the short longitudinal bulges connected with the middle two arc inner convex edges, a glue injection space is enclosed between the sealing gasket and the outer wall of the pipeline to be plugged by the middle two arc inner convex edges and the short longitudinal bulges connected with the middle arc inner convex edges, a plurality of glue injection pipe orifices are also arranged on the arc hoop, the glue injection pipe orifices are communicated with the glue injection space, the distance between the middle two arc inner convex edges and the arc inner convex edges at the outer side is not less than 10 centimeters, and the seams between the two arc inner convex edges at the outer side and the long longitudinal bulges connected with the middle arc inner convex edges and the outer wall of the pipeline to be welded seams, each glue injection pipe opening is provided with an internal thread or an external thread.
When in use, the two arc-shaped anchor ears and the sealing base plate of the device are firstly used for primarily plugging the leakage point, the leakage point is not required to be completely sealed in the process, then, injecting the accelerating agent into the glue injection space at multiple points through each glue injection pipe opening, wherein the accelerating agent enters the glue injection space, the sealing pad plate is pressed to the pipeline to be plugged by high pressure to provide sufficient and uniform external pressure for the sealing pad plate, so that the sealing pad plate is fully and tightly combined with the outer wall of the pipeline to be plugged, and the accelerating agent is rapidly solidified, the inner wall of the pipe to be plugged is highly matched with the outer wall of the pipe to be plugged, which is equivalent to quickly manufacturing a customized special hoop for the pipe to be plugged, the shape of the hoop is highly matched with the outer wall of the pipe around the leaking point, the two hoops can be matched seamlessly, and because the leaked water flow does not directly contact with the setting accelerator, the impact on the setting accelerator is avoided, and the setting accelerator is not interfered when being solidified. The sealing effect is better, after the final leaking stoppage is finished, the two arc inner convex edges outside the arc hoop and the long longitudinal bulges connected with the arc inner convex edges are preferably welded to the seam between the outer wall of the leaking stoppage pipeline, so that the arc hoop is combined with the outside of the pipeline to be leaking stopped into a whole, and the problem of repeated leaking can not occur even if the bolt is loosened or even matched with the other arc hoop to fall off.
The sealing pad plate can be a rubber plate, a silica gel plate or a polytetrafluoroethylene sealing or asbestos sealing pad plate, and the sealing pad plate can be properly larger than the glue injection space (for example, the length and the width of the sealing pad plate are both 2 cm larger than the corresponding length and width of the glue injection space) for facilitating installation. The design is suitable for blocking leakage points on the large-caliber water conveying steel pipe with the diameter of more than 1 meter under pressure.
As optimization, the distance between the short longitudinal bulge and the adjacent long longitudinal bulge is more than or equal to 10 centimeters. By the design, the long longitudinal bulge is welded with the pipeline to be blocked, and the sealing base plate cannot be melted down by heat generated by welding.
The utility model discloses large-diameter steel pipe leaking stoppage method with pressure, including following step:
finding a to-be-plugged point on a pipeline to be plugged, and cleaning peripheral soil or sundries;
secondly, the rubber-injection weldable leaking stoppage hoop for leaking stoppage of the large-diameter steel pipe under pressure is taken, the sealing cushion plate is pressed on a point to be blocked, then the arc-shaped hoop with the rubber injection space is pressed on the sealing cushion plate, the other arc-shaped hoop is taken to be buckled on the pipeline to be blocked from the other side, the two arc-shaped hoops are connected together by bolts and screwed tightly, so that the two arc-shaped hoops are firmly fixed on the leaking stoppage pipeline,
then, a matched glue injection pump is taken, glue outlets of the matched glue injection pump are connected to glue injection pipe orifices of the arc-shaped hoop one by one, then the glue injection pump is started, the accelerator is injected into the glue injection space through the glue injection pipe orifices one by one, the accelerator enters the glue injection space under high pressure to generate high pressure on the sealing base plate, the sealing base plate is pressed to a pipeline to be blocked and quickly solidified, glue is injected from the glue injection pipe orifices far away from the point to be blocked, the glue injection pipe orifices closest to the point to be blocked are alternately moved one by one from two sides, and finally glue is injected into the glue injection pipe orifices closest to the point to be blocked, so that the point to be blocked is completely blocked.
Welding the two arc inner convex edges at the outer side of the arc hoop where the sealing cushion plate is positioned, the long longitudinal bulge connected with the two arc inner convex edges and the joint between the long longitudinal bulge and the outer wall of the leaking stoppage pipeline.
The design is suitable for blocking the leakage of the large-diameter pipeline under pressure, and the leakage is not easy to return after the blocking.
The utility model discloses but the large-diameter steel pipe area is pressed leaking stoppage with injecting glue, welding formula leaking stoppage staple bolt design science, and the shutoff is reliable, and difficult hourglass is again fit for the big-diameter water delivery steel pipe of shutoff.
Drawings
The utility model discloses but be fit for the pressure leaking stoppage of heavy-calibre steel pipe injecting glue, welding formula leaking stoppage staple bolt of area and make further explanation in the following with the accompanying drawing:
FIG. 1 is a schematic cross-sectional view of a common anchor ear for pressurized leak stopping on a large-caliber steel pipe (only a sealing base plate and the large-caliber steel pipe are transversely cut);
FIG. 2 is a schematic view of a three-dimensional structure of the glue-injection weldable type plugging hoop for plugging the large-diameter steel pipe with pressure (omitting a sealing base plate);
FIG. 3 is a schematic perspective view of the glue-injection weldable plugging hoop for plugging the large-diameter steel pipe under pressure;
FIG. 4 is a schematic view of the three-dimensional structure of the large-diameter steel pipe with pressure for plugging by injecting glue and welding;
fig. 5 is a cross-sectional structure view (one quarter is cut along the direction shown in fig. 4) of the large-diameter steel pipe without glue injection after the glue-injectable weldable plugging hoop for plugging under pressure is installed;
FIG. 6 is a cross-sectional view of the large-diameter steel pipe after being installed with the glue-injection and welding type plugging anchor ear and injected with glue (a quarter of which is cut along the direction shown in FIG. 4);
fig. 7 is a cross-section structure diagram (one quarter is cut along the direction shown in fig. 4) of the large-diameter steel pipe after glue injection, welding type leakage stopping hoop installation, glue injection and welding.
In the figure: the device comprises an arc hoop 1, a connecting plate 11, a bolt 2, a sealing base plate 3, a pipeline 4 to be plugged, a point 5 to be plugged, an arc inner convex edge 6, a short longitudinal bulge 7, a long longitudinal bulge 8, a glue injection space 9, a glue injection pipe orifice 10, an accelerator 12 and a welding line 13.
Detailed Description
The first implementation mode comprises the following steps: as shown in fig. 2-7, this large-diameter steel pipe area is pressed leaking stoppage with injecting glue, welding formula leaking stoppage staple bolt includes two arc staple bolts 1, bolt 2 and sealed backing plate 3, and two arc staple bolts both ends are equipped with connecting plate 11 respectively, and it has relative through-hole to open on the connecting plate 11, bolt 2 wears to establish in above-mentioned through-hole, connects two arc staple bolts 1 and circularizes, encircles on treating leaking stoppage pipeline 4, sealed backing plate 3 presss from both sides arc staple bolt 1 and treats between leaking stoppage pipeline 4 to cover completely on treating leaking stoppage point 5, its characterized in that: at least one arc-shaped hoop 1 is provided with at least four arc-shaped inner convex edges 6 on the inner side surface, two ends of the middle two arc-shaped inner convex edges 6 are respectively connected by short longitudinal bulges 7, two ends of the arc-shaped inner convex edges 6 on two sides are respectively connected by long longitudinal bulges 8, the periphery of the sealing pad plate 3 is pressed on the outer wall of the pipeline 4 to be plugged by the middle two arc-shaped inner convex edges 6 and the short longitudinal bulges 7 connected with the middle arc-shaped inner convex edges 6, an adhesive injection space 9 is enclosed by the middle two arc-shaped inner convex edges 6 and the short longitudinal bulges 7 connected with the middle arc-shaped inner convex edges between the sealing pad plate 3 and the outer wall of the pipeline 4 to be plugged, the arc-shaped hoop 1 is also provided with a plurality of adhesive injection pipe orifices 10, the adhesive injection pipe orifices 10 are communicated with the adhesive injection space 9, the distance between the middle two arc-shaped inner convex edges 6 and the arc-shaped inner convex edges 6 on the outer side is not less than 10 centimeters, and the seams between the two arc-shaped inner convex edges 6 and the long longitudinal bulges 8 connected with the outer wall of the leaking stoppage pipeline 4 can be welded, each glue injection pipe opening 10 is provided with an internal thread or an external thread. The distance between the short longitudinal bulge 7 and the adjacent long longitudinal bulge 8 is more than or equal to 10 cm.
The utility model discloses large-diameter steel pipe leaking stoppage method with pressure, including following step:
firstly, finding a to-be-plugged point 5 on a to-be-plugged pipeline 4, and cleaning peripheral soil or sundries;
secondly, the glue-injection and weldable plugging hoop for plugging the large-diameter steel pipe with pressure is taken, the sealing cushion plate 3 is pressed on a point 5 to be plugged, then the arc-shaped hoop 1 with the glue injection space 9 is pressed on the sealing cushion plate 3, the periphery of the sealing cushion plate 3 is clamped between two arc-shaped inner convex edges 6 in the middle and short longitudinal bulges 7 connected with the arc-shaped inner convex edges and the outer wall of the pipeline 4 to be plugged, the other arc-shaped hoop 1 is taken and buckled on the pipeline 4 to be plugged from the other side, the two arc-shaped hoops are connected together by the bolt 2 and screwed, and the two arc-shaped hoops 1 are firmly fixed on the plugging pipeline 4, as shown in figure 5.
Thirdly, a matched glue injection pump (not shown in the figure) is taken, glue outlets (not shown in the figure) of the matched glue injection pump are connected to glue injection pipe orifices 10 of the arc-shaped hoop 1 one by one, then the glue injection pump is started, the accelerator 12 is injected into the glue injection space 9 through the glue injection pipe orifices 10 one by one, the accelerator 12 enters the glue injection space 9 under high pressure to generate high pressure on the sealing cushion plate 3, the sealing cushion plate 3 is pressed towards the pipeline 4 to be blocked and is rapidly solidified, glue injection is performed from the glue injection pipe orifices 10 far away from the point 5 to be blocked, the glue injection pump alternately moves from two sides one by one to the glue injection pipe orifices closest to the point to be blocked, the sealing cushion plate 3 is gradually squeezed, water outlet of the point 5 to be blocked is gradually reduced, and finally the accelerator 12 is injected into the glue injection pipe orifices 10 closest to the point to be blocked, as shown in fig. 6.
Note: in general, after the glue injection (i.e., the accelerator) is completed, the point to be plugged 5 can be plugged. If a small amount of leakage still exists, the pressure of the arc-shaped hoop 1 on the sealing base plate 3 can be properly increased by screwing down the nut of the bolt 2, and the point 5 to be blocked can be completely blocked.
The accelerator can be selected from water-based or oil-based foaming polyurethane or epoxy resin or CN 207729133U, and the injecting pump is CN 207729133U.
And fourthly, welding the joints between the two arc-shaped inner convex ridges 6 at the outer sides of the arc-shaped hoops 1 where the sealing cushion plates 3 are positioned, the long longitudinal bulges 8 connected with the two arc-shaped inner convex ridges and the outer wall of the pipeline 4 to be plugged, as shown in figure 7.
Note: under the condition of large number, the same section of large-diameter steel pipe only has one leakage point, at the moment, only a sealing cushion plate 3 needs to be arranged between the corresponding arc-shaped hoop 1 and a pipeline 4 to be leaked around the point 5 to be leaked, the other arc-shaped hoop 1 matched with the leakage point does not need to be provided with the sealing cushion plate 3, and the arc-shaped hoop 1 without the sealing cushion plate 3 and the bolt 2 can be detached after welding.
Claims (2)
1. The utility model provides a large-diameter steel pipe area is pressed injecting glue shaping leaking stoppage staple bolt of leaking stoppage with welding, includes two arc staple bolts, bolt and sealed backing plate, and two arc staple bolts both ends are equipped with the connecting plate respectively, and it has relative through-hole to open on the connecting plate, the bolt is worn to establish in above-mentioned through-hole, connects into the annular with two arc staple bolts, encircles on treating leaking stoppage pipeline, sealed backing plate presss from both sides at the arc staple bolt and treats between the leaking stoppage pipeline to cover completely on treating the leaking stoppage point, its characterized in that: at least four arc inner convex edges are arranged on the inner side surface of at least one arc hoop, two ends of the middle two arc inner convex edges are respectively connected by short longitudinal bulges, two ends of the arc inner convex edges at two sides are respectively connected by long longitudinal bulges, the periphery of the sealing gasket is pressed on the outer wall of the pipeline to be plugged by the middle two arc inner convex edges and the short longitudinal bulges connected with the middle two arc inner convex edges, a glue injection space is enclosed between the sealing gasket and the outer wall of the pipeline to be plugged by the middle two arc inner convex edges and the short longitudinal bulges connected with the middle arc inner convex edges, a plurality of glue injection pipe orifices are also arranged on the arc hoop, the glue injection pipe orifices are communicated with the glue injection space, the distance between the middle two arc inner convex edges and the arc inner convex edges at the outer side is not less than 10 centimeters, and the seams between the two arc inner convex edges at the outer side and the long longitudinal bulges connected with the middle arc inner convex edges and the outer wall of the pipeline to be welded seams, each glue injection pipe orifice is provided with an internal thread or an external thread.
2. The weldable glue injection forming leaking stoppage hoop for leaking stoppage of the large-caliber steel pipe under pressure as claimed in claim 1, which is characterized in that: the distance between the short longitudinal bulge and the adjacent long longitudinal bulge is more than or equal to 10 cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221467751.0U CN217382162U (en) | 2022-06-09 | 2022-06-09 | Weldable glue injection forming leaking stoppage hoop for leaking stoppage of large-diameter steel pipe under pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221467751.0U CN217382162U (en) | 2022-06-09 | 2022-06-09 | Weldable glue injection forming leaking stoppage hoop for leaking stoppage of large-diameter steel pipe under pressure |
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| CN217382162U true CN217382162U (en) | 2022-09-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013632A (en) * | 2022-06-09 | 2022-09-06 | 兖矿东华建设有限公司三十七处 | Weldable glue injection forming leaking stoppage hoop for leaking stoppage of large-diameter steel pipe under pressure and using method thereof |
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2022
- 2022-06-09 CN CN202221467751.0U patent/CN217382162U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013632A (en) * | 2022-06-09 | 2022-09-06 | 兖矿东华建设有限公司三十七处 | Weldable glue injection forming leaking stoppage hoop for leaking stoppage of large-diameter steel pipe under pressure and using method thereof |
| CN115013632B (en) * | 2022-06-09 | 2024-05-14 | 山东能源集团建工集团有限公司三十七处 | Weldable glue injection forming plugging anchor ear for large-caliber steel pipe under-pressure plugging and use method thereof |
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