Pipe flange quick leak sealing device

Abstract

This utility model discloses a rapid leak-sealing device for pipe flanges, comprising a first half-pipe, a second half-pipe, multiple first connecting blocks, multiple second connecting blocks, two airbags, and two inflation nozzles. The two airbags are respectively connected to the two inflation nozzles. After inflation, the two airbags cooperate with the pipe flange to seal both ends of the tubular structure, forming a sealed cavity between the two airbags. The pipe flange is placed within the sealed cavity. In this application, the first and second half-pipes can be fitted onto the outside of the pipe flange. The sealing strip achieves radial sealing after surrounding the pipe flange. Then, after the airbags collide, they form an axial seal against the pipe flange by contacting the inner walls of the first and second half-pipes and the inner wall of the pipe flange. The airbags can quickly seal the large space between the inner walls of the first and second half-pipes and the pipe flange through inflation, resulting in excellent sealing effect and high sealing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipeline flange maintenance technology, and in particular to a rapid leak sealing device for pipeline flanges. Background Technology

[0002] A pipe flange is a component used to connect pipes, fittings, or equipment. It achieves sealing and fixation through a combination of flanges, gaskets, and bolts. Flange connections are a very important connection method in pipeline construction, offering advantages such as ease of use and the ability to withstand high pressure.

[0003] The following problems exist with existing pipe flanges:

[0004] When used for extended periods in extreme environments (extreme high and low temperatures, corrosive solutions transported in pipelines), the gaskets and flanges themselves will be corroded, leading to a decrease in the sealing capacity of the pipeline flange. Ultimately, this can cause the solution transported in the pipeline to leak under high pressure. Therefore, a quick leak-sealing device for pipeline flanges is required for leak sealing. Existing quick leak-sealing devices are generally only suitable for the pipeline itself and not for pipeline flanges with irregular structures.

[0005] Therefore, it is necessary to develop a quick leak-sealing device for pipe flanges to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to design a quick leak-sealing device for pipe flanges to solve the above-mentioned problems.

[0007] This utility model achieves the above objectives through the following technical solutions:

[0008] A quick-sealing device for pipe flanges includes:

[0009] First half-pipe;

[0010] The second half-pipe; the first half-pipe and the second half-pipe have the same radius and length, and both are larger than the radius of the pipe flange; the two long sides of the first half-pipe are connected to the two long sides of the second half-pipe respectively, and the first half-pipe and the second half-pipe are combined to form a tubular structure. The long sides of the first half-pipe and the second half-pipe are provided with installation grooves, and sealing strips are installed in the installation grooves.

[0011] Multiple first connecting blocks; multiple first connecting blocks are installed at the outer edges of the two long sides of the second half-tube;

[0012] Multiple second connecting blocks; multiple second connecting blocks are installed at the outer edges of the two long sides of the first half-tube; both the first connecting block and the second connecting block are provided with through holes, and the screw in the bolt assembly passes through the through holes in the first connecting block and the second connecting block, and the bolt assembly locks the first connecting block and the second connecting block together;

[0013] Two airbags;

[0014] Two inflation nozzles; two airbags are respectively set inside the first half-tube, and correspondingly two inflation nozzles are set on the side wall of the first half-tube. The two airbags are connected to the two inflation nozzles respectively. After the two airbags are inflated, they cooperate with the pipe flange to seal both ends of the tubular structure and form a sealed cavity between the two airbags. The flange of the pipe flange is placed in the sealed cavity.

[0015] The beneficial effects of this utility model are as follows:

[0016] In this application, the first and second half-pipes can be fitted onto the outside of the pipe flange. The sealing strip achieves radial sealing after surrounding the pipe flange. Then, after the airbag collides, it forms an axial seal on the pipe flange with the inner walls of the first and second half-pipes and the inner wall of the pipe flange. The airbag can quickly seal the large space between the inner walls of the first and second half-pipes and the pipe flange by inflation. The overall sealing effect is good and the sealing efficiency is high. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this application;

[0018] Figure 2 This is a schematic diagram of the mating structure between the mounting groove and the sealing strip in this application;

[0019] Figure 3 This is a schematic diagram of the internal structure of the first half-tube;

[0020] Figure 4 This is a schematic diagram of the internal structure of the second half-tube;

[0021] Figure 5 This is a structural schematic diagram of the first inner partition and the second inner partition;

[0022] Figure 6 This is a structural schematic diagram of the first outer partition and the second outer partition;

[0023] Figure 7 This is a schematic diagram of the structure of the inflated air bladder.

[0024] Legend: 1. First half-pipe, 2. Second half-pipe, 3. First connecting block, 4. Second connecting block, 5. First magnetic block, 6. Second magnetic block, 7. Bolt assembly, 8. Inflation nozzle, 9. Mounting groove, 10. Sealing strip, 11. First outer partition, 12. First inner partition, 13. Second inner partition, 14. Second outer partition, 15. Airbag, 16. Sealing cavity, 17. Cartridge-type check valve. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] like Figure 1-4 As shown in Figure 7, the quick-sealing device for pipe flanges includes:

[0033] First half-pipe 1;

[0034] The second half-pipe 2; the first half-pipe 1 and the second half-pipe 2 have the same radius and length, and both are larger than the radius of the pipe flange; the two long sides of the first half-pipe 1 are respectively connected to the two long sides of the second half-pipe 2, and the first half-pipe 1 and the second half-pipe 2 are combined to form a tubular structure. The long sides of the first half-pipe 1 and the second half-pipe 2 are each provided with an installation groove 9, and a sealing strip 10 is provided in the installation groove 9.

[0035] Multiple first connecting blocks 3; multiple first connecting blocks 3 are installed at the outer edges of the two long sides of the second half-tube 2;

[0036] Multiple second connecting blocks 4; multiple second connecting blocks 4 are installed at the outer edges of the two long sides of the first half-tube 1; both the first connecting block 3 and the second connecting block 4 are provided with through holes, and the screw in the bolt assembly 7 passes through the through holes on the first connecting block 3 and the second connecting block 4, and the bolt assembly 7 locks the first connecting block 3 and the second connecting block 4.

[0037] Two airbags, 15;

[0038] Two inflation nozzles 8; two air bags 15 are respectively set inside the first half-tube 1. Correspondingly, two inflation nozzles 8 are set on the side wall of the first half-tube 1. The two air bags 15 are respectively connected to the two inflation nozzles 8. After the two air bags 15 are inflated, they cooperate with the pipe flange to seal both ends of the tubular structure and form a sealing cavity 16 between the two air bags 15. The flange of the pipe flange is placed in the sealing cavity 16.

[0039] like Figure 3-4 As shown in Figures 6 and 7, two first outer partitions 11 and two second outer partitions 14 are radially installed inside the first half-pipe 1 and the second half-pipe 2, respectively. The positions of the first outer partitions 11 and 14 installed in the first half-pipe 1 correspond to those of the first outer partitions 11 and 14 installed in the second half-pipe 2. The first outer partitions 11 and 14 are both formed into a semi-circular ring structure. The inner diameters of the first outer partitions 11 and 14 are the same as the outer diameter of the pipe flange. One airbag 15 is placed between one first outer partition 11 and one second outer partition 14 in the first half-pipe 1, and the other airbag 15 is placed between another first outer partition 11 and another second outer partition 14 in the first half-pipe 1.

[0040] like Figure 3-4As shown in Figures 5 and 7, two first inner partitions 12 and two second inner partitions 13 are radially installed inside both the first half-tube 1 and the second half-tube 2. One first inner partition 12 and one second inner partition 13 are installed between one first outer partition 11 and one second outer partition 14, and another first inner partition 12 and another second inner partition 13 are installed between another first outer partition 11 and another second outer partition 14. Inside the first half-tube 1, two airbags 15 are respectively installed between two sets of adjacent first inner partitions 12 and second inner partitions 13. The inflated airbags 15 completely cover the gaps between the first outer partitions 11, first inner partitions 12, second inner partitions 13, and second outer partitions 14 on the first half-tube 1 and the second half-tube 2. After the first outer partition 11 and one second outer partition 14 are set, the inflated airbags 15 form as shown in Figure 7. Figure 7 The shape of the first inner partition 12 and the second inner partition 13, together with the outer wall of the airbag 15, forms a labyrinth-like sealing structure, which makes the sealing effect better.

[0041] like Figure 3-4 As shown, the first outer partition 11, the first inner partition 12, the second inner partition 13, and the second outer partition 14 on the first half-tube 1 are parallel to each other, and the first outer partition 11, the first inner partition 12, the second inner partition 13, and the second outer partition 14 on the second half-tube 2 are also parallel to each other.

[0042] like Figure 1 As shown, a cartridge-type check valve 17 is provided on the side wall of the first half-pipe 1 or the second half-pipe 2, and at a position outside the sealing cavity 16. Figure 1 The cartridge-type check valve 17 shown is located on the side wall of the first half-pipe 1, and during installation, the cartridge-type check valve 17 is positioned close to the lower end of the sealing cavity 16, making it easier to completely drain the liquid from the sealing cavity 16 when needed.

[0043] like Figure 1 As shown, the inner side of the first connecting block 3 is connected to the first magnetic block 5, and the inner side of the second connecting block 4 is connected to the second magnetic block 6. Both the first magnetic block 5 and the second magnetic block 6 are provided with through holes. The screw in the bolt assembly 7 passes through the through holes on the first magnetic block 5 and the second magnetic block 6, and the first magnetic block 5 and the second magnetic block 6 are magnetically connected.

[0044] like Figure 1 and 3 As shown in Figure 4, in some embodiments, the combination of the first connecting block 3 and the second connecting block 4 is in six groups, of which three groups are respectively set at the upper, middle and lower positions of the first side edge of the first half-tube 1 and the second half-tube 2, and the other three groups are respectively set at the upper, middle and lower positions of the other side edge of the first half-tube 1 and the second half-tube 2.

[0045] Working principle:

[0046] In this application, the airbag 15 can be quickly inflated and deflated through the inflation nozzle 8; the liquid in the sealed cavity 16 can be discharged through the cartridge-type one-way valve 17 after being inserted into the pipe.

[0047] During operation, the first half-pipe 1 is first fitted onto one side of the pipe flange, and the second half-pipe 2 is fitted onto the other side of the pipe flange, with the flange of the pipe flange positioned at the center of the sealing cavity 16. Subsequently, the first half-pipe 1 and the second flange are connected by the magnetic attraction of multiple sets of first magnetic blocks 5 and second magnetic blocks 6. Then, the connection between the first half-pipe 1 and the second half-pipe 2 is locked by multiple bolt assemblies 7. Through the compression of the bolt assembly 7, the sealing strip 10 is deformed, achieving a seal at the edges of the first half-pipe 1 and the second half-pipe 2. Then, the two air bladders 15 are inflated by two air nozzles 8 respectively. After the air bladders 15 are inflated and collide, they completely occupy the gaps between the first outer partition 11, the first inner partition 12, the second inner partition 13, and the second outer partition 14, achieving an axial seal between the first half-pipe 1 and the second half-pipe 2 on the pipe flange. The liquid leaking from the pipe flange can only be placed in the sealing cavity 16, thus achieving rapid sealing of the pipe flange. When a complete overhaul of the pipe flange is required, insert the pipe into the cartridge check valve 17, open the cartridge check valve 17, completely drain the liquid in the sealing cavity 16, then remove the bolt assembly 7, then release the gas in the air bladder 15 through the air inlet 8, and then separate the magnetic connection between the first half pipe 1 and the second half pipe 2 to expose the pipe flange for complete overhaul.

[0048] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A quick leak stoppage device for pipe flanges, characterized in that, include: First half-pipe; Second half-pipe; The first half-pipe and the second half-pipe have the same radius and length, and both are larger than the radius of the pipe flange. The two long sides of the first half-pipe are connected to the two long sides of the second half-pipe respectively. The first half-pipe and the second half-pipe are combined to form a tubular structure. The long sides of the first half-pipe and the second half-pipe are provided with installation grooves, and sealing strips are installed in the installation grooves. Multiple first connecting blocks; multiple first connecting blocks are installed at the outer edges of the two long sides of the second half-tube; Multiple second connecting blocks; multiple second connecting blocks are installed at the outer edges of the two long sides of the first half-tube; both the first connecting block and the second connecting block are provided with through holes, and the screw in the bolt assembly passes through the through holes in the first connecting block and the second connecting block, and the bolt assembly locks the first connecting block and the second connecting block together; Two airbags; Two inflation nozzles; two airbags are respectively set inside the first half-tube, and correspondingly two inflation nozzles are set on the side wall of the first half-tube. The two airbags are connected to the two inflation nozzles respectively. After the two airbags are inflated, they cooperate with the pipe flange to seal both ends of the tubular structure and form a sealed cavity between the two airbags. The flange of the pipe flange is placed in the sealed cavity.

2. The pipe flange quick patch device of claim 1, wherein, Both the first and second half-pipes are radially installed with two first outer baffles and two second outer baffles. The first and second outer baffles installed in the first half-pipe correspond to the positions of the first and second outer baffles installed in the second half-pipe, respectively. Both the first and second outer baffles are formed into a semi-circular ring structure. The inner diameter of the first and second outer baffles is the same as the outer diameter of the pipe flange. One airbag is placed between one of the first and second outer baffles in the first half-pipe, and the other airbag is placed between another first and second outer baffle in the first half-pipe.

3. The pipe flange quick patch device of claim 2, wherein, Both the first and second half-tubes are radially installed with two first inner side partitions and two second inner side partitions. One first inner side partition and one second inner side partition are installed between one first outer side partition and one second outer side partition, and another first inner side partition and another second inner side partition are installed between another first outer side partition and another second outer side partition. Inside the first half-tube, two airbags are respectively installed between two sets of adjacent first inner side partitions and second inner side partitions. The inflated airbags completely cover the gaps between the first outer side partition, the first inner side partition, the second inner side partition, and the second outer side partition on the first and second half-tubes.

4. The pipe flange quick-sealing device according to claim 2, characterized in that, The first outer partition, the first inner partition, the second inner partition, and the second outer partition on the first half-tube are parallel to each other, and the first outer partition, the first inner partition, the second inner partition, and the second outer partition on the second half-tube are also parallel to each other.

5. The pipe flange quick patch device of claim 1, wherein, A cartridge-type check valve is installed on the side wall of the first or second half-pipe, located outside the sealing cavity.

6. The pipe flange quick patch device of claim 1, wherein, The inner side of the first connecting block is connected to a first magnetic block, and the inner side of the second connecting block is connected to a second magnetic block. Both the first and second magnetic blocks are provided with through holes. The screw in the bolt assembly passes through the through holes on the first and second magnetic blocks, and the first and second magnetic blocks are magnetically connected.

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