CN103133817B - A kind of online Pipe leakage stopper and blocking method - Google Patents

Abstract

The invention discloses an online pipeline leak plugging device and a leak plugging method. The leak plugging device is mainly composed of an adhesive sealing part and a pressure relief fastening part cooperating with each other; Mark the sealing position of the sealing part; next, stick one or several groups of sealing parts to the marked sealing position on the pipeline with the adhesive; The pressure valve is opened, and then the adhesive sealing part corresponding to the pressure relief fastening part is clamped on the pipeline; finally, the pressure relief valve on the pressure relief fastening part is closed to complete the plugging. The solution provided by the invention can realize rapid online plugging of soft pipelines or hard pipelines.

Description

A kind of online pipeline plugging device and plugging method

technical field

The invention relates to a pipeline plugging technology, in particular to an online pipeline plugging technology.

Background technique

The fire hose is an important equipment for the fire brigade to transport fire extinguishing agents, and plays a vital role in fire fighting and rescue. In fire fighting, fire hoses are often scratched due to aging materials or encountering sharp objects such as hard protrusions, resulting in damage and water leakage. The water leaking out under high pressure not only adversely affects fire fighting and rescue, but may also cause serious consequences. Especially in the fire rescue scene, once the main line hose breaks, it will directly affect the water supply in the front field. To replace the new hose, the water pump needs to be stopped, which wastes a lot of time. This is very undesirable for fire fighting and rescue where every second counts. At this time, there is a need for a method to block the leak of the hose without stopping the water supply.

At present, the most commonly used on-site leak repair method is to use cloth tape to wrap and bind the leak, or use double-sided fastening adhesive tape to bond, but the effect of these methods is not ideal. Since the fire hose works under wet conditions, the bonding ability of the adhesive will be greatly reduced under the influence of water stains. In addition, the water pressure is high, and this method can hardly achieve the leak-trapping effect, so the above-mentioned methods cannot be used. Nice solution to this problem.

For leaks such as hard pipelines such as metal pipelines, there are many kinds of leak plugging tools at present, but the functional structure, plugging pressure, and use method of these tools are all designed for when there is no pressure in the leaking pipeline. When using these tools to plug leaks, most of them need to close the valve of the leaking pipeline to reduce the internal pressure. Even though some tools can barely plug the leak online, the plugging pressure, plugging effect, and operation process do not meet the needs of on-site emergency leak plugging.

Contents of the invention

The invention aims at the problem that the existing pipeline plugging technology cannot realize fast and effective online plugging, and provides an online pipeline plugging device and a plugging method implemented based on the device. The solution provided by the invention can realize rapid online plugging of soft pipelines or hard pipelines.

In order to achieve the above object, the present invention adopts following technical scheme:

An online pipeline leak-stopping device, the leak-stopping device comprising:

A sealing part, the sealing part is glued to the pipe along the circumferential direction of the pipe through the sealing glue, and is distributed on both sides of the leak opening on the pipe, and at least one sealing part is glued and sealed on both sides of the leaking port ;

A pressure relief fastening part, the pressure relief fastening part is detachably clamped on the pipeline, and wraps the upper leakage port of the pipeline; the pressure relief fastening part is provided with a pressure relief cavity matching the upper leakage port of the pipeline , the pressure relief fastening part is provided with a compression sealing cavity that is sealingly matched with the adhesive sealing part.

In a preferred example of the leak-stopping device, when there are multiple sealing parts on each side of the leakage opening on the pipeline, they are evenly spaced among them.

Still further, the distribution distance between the sealing components is 1 cm-50 cm.

Further, the above-mentioned sealing part is an annular sealing part with a certain width, the inner diameter of the ring-shaped sealing part matches the outer diameter of the pipeline waiting to be plugged, and its outer diameter, thickness and width match the pressure relief pressure. The compression sealing cavity in the solid part is matched; the inner surface of the ring-shaped sealing part is an adhesive surface for setting adhesive sealant.

Still further, the width of the ring-shaped sealing member is 0.5cm-30cm.

Still further, the annular sealing part is formed by detachable sealing connections between several arc-shaped sealing parts.

Further, the pressure relief fastening part includes a pressure relief fastening body and a clamping part, and the pressure relief fastening body is formed by a plurality of pressure relief fastening blocks that are sealed and detachable connected to each other, each of the pressure relief fastening The inner surface of the block is provided with arc-shaped placement grooves along its extension direction, and correspondingly provided with pressure relief grooves and compression sealing grooves; the plurality of pressure relief fastening blocks are connected to each other in turn along the circumferential direction to form a pressure relief fastening body , and make the arc-shaped placement grooves on all the pressure relief fastening blocks cooperate with each other to form a placement through hole matched with the pipeline along the extending direction of the pressure relief fastening body, and at the same time make the pressure relief grooves and the pressure relief grooves on all the pressure relief fastening blocks The compression sealing groove cooperates with each other to form a corresponding pressure relief cavity and compression sealing cavity; the clamping part connects and clamps all the pressure relief fastening blocks.

Further, the leakage plugging device further includes a positioning component for positioning the sealing position of the sealing component.

Further, at least one pressure relief valve is provided on the pressure relief fastening part, and the pressure relief valve communicates with the pressure relief cavity in the pressure relief fastening part.

Still further, when there are more than two pressure relief valves, they are distributed along the circumferential direction of the pressure relief fastening component.

As the second object of the present invention, the online pipeline plugging method provided comprises the following steps:

(1) After the pipeline ruptures, determine the sealing position of the sealing parts according to the position of the leakage port on the pipeline;

(2) Apply adhesive sealant on the adhesive surface of the adhesive sealing part, and bond the adhesive sealing part to the corresponding sealing position on the pipeline through the adhesive sealant;

(3) After the adhesive sealing parts are firmly bonded, clamp the pressure relief fastening parts on the pipe correspondingly, and make the pressure relief cavity on it match with the leakage port of the pipe, so that the medium leaked from the pipe leakage port into the pressure relief chamber; at the same time, the compression sealing chamber on the pressure relief fastening part is sealed with the adhesive sealing part bonded to the pipeline, and forms a pressure on the adhesive sealing part facing the pipeline;

(4) After the medium has no leakage at all, complete the plugging.

In the preferred solution of the leak plugging method, in the step (1), the positioning component is arranged on the pipeline and corresponds to the leakage port, and at this time, the corresponding positions determined by the two ends of the positioning component on the pipeline are the sealing positions.

Further, when clamping the pressure relief fastening part in the step (3), firstly, according to the pressure relief groove and the compression sealing groove on the pressure relief fastening block constituting the pressure relief fastening part and the leakage port on the pipeline and the adhesive According to the corresponding relationship between the sealing parts, each pressure relief fastening block is placed on the outer wall of the pipeline in turn through the arc-shaped placement groove on it, and the adjacent pressure relief fastening blocks are connected by a sealing fit structure, so that All the pressure relief fastening blocks are arranged along the circumferential direction of the pipeline, and all the pressure relief fastening blocks are sequentially connected to form the pressure relief fastening parts wrapping the pipeline; then, the clamping parts are used to tighten all the pressure relief fastening blocks, so that all the pressure relief fastening blocks The compression fastening blocks clamp onto the pipe while allowing a sealing fit between adjacent pressure relief fastening blocks.

Further, the leak-stopping method also includes the step of recovering the pressure relief fastening component after the pipeline is not in use.

The present invention obtained according to the above solution can quickly and effectively implement online plugging of leaking pipelines. There is no need for the pipeline to stop working during the plugging operation, and it does not affect the work of the corresponding equipment at all; the plugging operation process is simple and can be realized quickly; after the plugging, it can ensure that the medium does not leak, and the medium pressure in the pipeline remains unchanged, which is consistent with that before the leakage.

At the same time, the solution provided by the present invention is not only applicable to soft pipes such as fire hoses, but also applicable to all hard pipes such as metal pipes; and can realize plugging of any medium in the pipes.

Finally, the present invention can guide, discharge and recover the leaked medium during the plugging operation, so as to avoid waste and environmental pollution.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is the structural representation of online pipeline leak plugging device among the present invention;

Fig. 2 is a schematic structural view of the sealing part in the present invention;

Fig. 3 is a cross-sectional view of a pressure relief fastening body in the present invention;

Fig. 4 is the top view of the pressure relief fastening block in the present invention;

Fig. 5 is a schematic structural view of a positioning component in the present invention;

Fig. 6 is a schematic flow chart of the online pipeline plugging method in the present invention.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

Referring to FIG. 1 , the online pipeline leakage plugging device 100 provided by the present invention mainly includes two parts: a sealing part 101 and a pressure relief fastening part 102 .

The sealing part 101 is glued on the pipeline along the circumferential direction of the pipeline 200 through the sealing glue 101a, and is distributed on both sides of the leakage opening on the pipeline, so as to realize the sealing between the leakage plugging device 100 and the leakage pipeline 200, preventing The medium leaks from the contact portion between the pipeline 200 and the leakage blocking device 100 .

As shown in Fig. 2, during specific setting, the sealing member 101 is an annular sealing member with a certain width, and the inner diameter of the annular sealing member matches the outer diameter of the pipeline 200 to be plugged. It is used as an adhesive surface for applying corresponding adhesive sealant 101a.

The width and thickness of the ring-shaped sealing part are determined according to the requirements of sealing. Since the width of the ring-shaped sealing part affects the contact area between the ring-shaped sealing part and the pipeline, it directly affects the sealing effect between the ring-shaped sealing part and the pipeline, and the larger the width, the better the sealing effect. In the actual use process, determine its width according to actual needs. For example, if the pressure of the leaking medium is high, it will greatly affect the sealing effect of the annular adhesive sealing part, and a wider annular adhesive sealing part can be set; if the leaking medium If the pressure is not large, it will not greatly affect the sealing effect of the ring-shaped sealing part, and a narrow ring-shaped sealing part can be set; this can achieve the purpose of ensuring the sealing effect and not wasting materials.

Accordingly, the width of the ring-shaped sealing member is generally 0.5 cm-30 cm, but the width of the ring-shaped sealing member is not limited thereto, and can be larger or smaller than this range according to actual needs.

The thickness of the ring-shaped adhesive sealing part is also set based on the above principles, and the specific value can be determined according to actual needs, and will not be repeated here.

Referring to Fig. 2, since the ring-shaped sealing member 101 needs to be sealed on the pipeline 200 during use, in order to facilitate operation, the ring-shaped sealing member 101 in the present invention is detachable between several arc-shaped sealing members 101b. The seals are connected together. A sealed and detachable connection structure 101c is used between the mating contact ends of the circular arc-shaped adhesive sealing parts 101b, such as intermeshing tooth gap structures and the like.

In the example solution shown in FIG. 2 , the ring-shaped sealing member 101 is formed by connecting two semi-arc-shaped sealing members 101b, which is convenient to operate and carry. However, for those ring-shaped sealing parts 101 suitable for pipes with very large diameters, more than two arc-shaped sealing parts 101b can be connected and composed, which can be determined according to actual needs.

As shown in FIG. 1 , in the example solution provided by the present invention, a ring-shaped sealing member 101 is glued and sealed on both sides at a certain distance from the leakage port of the pipeline.

In actual operation, the distance between the sealing position of the ring-shaped sealing member 101 and the leakage port of the pipeline is sufficient as long as it can ensure that the ring-shaped sealing member 101 can perform good sealing, generally 5cm-50cm, but the specific The distance between is not limited thereto, and can be larger or smaller than this range according to actual needs.

The number of sealing ring-shaped sealing parts 101 is also not limited to the number shown in Figure 1, and it can seal two or more ring-shaped sealing parts on both sides of the pipeline leakage port according to actual needs. 101, which can greatly improve the sealing effect between the leak plugging device 100 and the pipeline 200, and greatly improve the reliability of leak plugging.

The ring-shaped sealing parts 101 that are sealed on both sides of the pipeline leakage opening can be distributed symmetrically or asymmetrically, which can be determined according to actual needs. If there are more than 2 annular sealing components 101 on each side, the annular sealing components 101 can be evenly spaced, and the general spacing can be 1cm-50cm, but the spacing is not limited thereto. It can be larger or smaller than this range according to actual needs.

In order to further improve the sealing effect, the sealing member 101 can be made of the same material as the pipe 200 .

The pressure relief fastening part 102 is used for clamping the sealing part 101 and the pipeline 200, and at the same time, during the plugging operation, after a sealed space is formed between the leak plugging device 100 and the leakage port of the pipeline 200, the leakage of the medium Perform pressure relief and diversion to avoid affecting the sealing effect between the sealing member 101 and the pipeline 200 .

To this end, the pressure relief fastening component 102 is detachably clamped on the pipeline 200, and wraps the leakage opening on the pipeline 200 and the sealing component 101 glued on the pipeline. At the same time, the pressure relief fastening part is provided with a pressure relief cavity 102a that matches the leakage port on the pipeline, through which the pressure of the medium leaked from the pipeline during plugging can be relieved, which is convenient for clamping operation and avoids leakage The released medium generates pressure in the pressure relief fastening part 102, which affects the clamping operation and leakage plugging.

In order to ensure good diversion of the leaked medium, the pressure relief chamber 102a needs to be able to completely cover the leak opening on the pipeline. For this reason, in the present invention, the pressure relief chamber 102a adopts an annular cavity structure, its inner diameter matches the outer diameter of the pipe, and its width corresponds to the extending direction and size of the leakage port.

In order to further prevent the pressure of the leakage medium from affecting the clamping operation of the pressure relief fastening part 102 and avoiding the impact of the leakage medium on the surrounding environment, the present invention sets a pressure relief valve 102b on the pressure relief fastening part 102, and the pressure relief valve 102b is connected to the pressure relief fastening part 102. The pressure relief cavity 102a in the pressure relief fastening part 102 communicates. Thus, through the cooperation of the pressure relief chamber 102a and the pressure relief valve 102b, the leaked medium is guided out of the pressure relief fastening part 102, effectively preventing the leakage medium from generating pressure in the pressure relief fastening part 102 and affecting the pressure relief fastening part 102 clamping operation; at the same time, the diverted medium can be recovered through the pressure relief valve 102b, so as to avoid its impact on the environment and waste of resources.

In order to further improve the actual diversion operability, multiple pressure relief valves 102b can be arranged on the pressure relief fastening part 102, and these multiple pressure relief valves 102b are distributed along the direction of the pressure relief fastening part 102, and are respectively connected The pressure relief chamber 102a realizes communication, thereby enabling flow diversion from any direction.

In the present invention, the pressure relief fastening part 102 is also provided with a compression sealing cavity 102c that is sealingly matched with the sealing part 101 on the pipeline. A pressure facing the pipeline 200 is generated on the sealing member 101 to effectively ensure the sealing of the entire device.

Because the sealing part 101 is circular as a whole, in order to perfectly cooperate with it, the compression sealing cavity 102c in the present invention adopts an annular cavity structure, and its inner diameter matches the outer diameter of the pipeline, and the outer diameter is the same as that of the sealing part 101. The outer diameters are matched, and the bottom of the sealing cavity 102c is pressed to generate downward pressure on the upper surface of the sealing member 101, further strengthening the sealing effect between the sealing member 101 and the pipe.

In order to achieve a sealing fit with the sealing member 101, a sealing gasket 102d for sealing the two is provided on the compression sealing cavity 102c. The specific location and number of the sealing gaskets 102d can be determined according to actual needs. For example, in the present invention, corresponding sealing gasket placement grooves are provided at the bottom of the compression sealing chamber 102c, and corresponding sealing gasket placement grooves are arranged in the sealing gasket placement grooves. The sealing gasket 102d is used to realize the sealing between the bottom of the compression sealing cavity 102c and the upper surface of the sealing member 101 through the sealing gasket 102d.

The set number and distribution positions of the compressed sealing chambers 102c correspond to the sealing components 101 that are sealed on the pipeline. As shown in Figure 1, in the example solution provided by the present invention, a sealing part 101 is glued and sealed on both sides of the pipeline leakage port, so the two sides of the pressure relief cavity 102a in the pressure relief fastening part 102 correspond to One compression sealing cavity 102c is provided; if multiple adhesive sealing components 101 are provided in the scheme, multiple compression sealing cavities 102c are also correspondingly provided in the pressure relief fastening component 102 .

Thus, when the pressure relief fastening part 102 is detachably clamped on the pipeline 200, the pressure relief chamber 102a on it will cooperate with the leakage port correspondingly, and at the same time, the compression sealing chamber 102c on it will be on the sealing part on the pipeline. 101 form a corresponding relationship, perform sealing fit and press the adhesive sealing part 101.

Referring to Fig. 3, in order to facilitate operation in the present invention, the pressure relief fastening part 102 mainly includes a pressure relief fastening body 102f and a clamping part, wherein the pressure relief fastening body is a cylinder as a whole (the specific shape is not limited, it can be a cylinder Body, etc.), and is composed of a number of pressure relief fastening blocks 102f1 which are sealed and detachable connected to each other, and the clamping part is used to tighten and connect several pressure relief fastening blocks.

Referring to Fig. 4, an arc-shaped seating groove 102f3 is provided on the inner surface of each pressure relief fastening block 102f1 along its extending direction, and the radius of the arc-shaped seating groove 102f3 matches the outer diameter of the pipe; Correspondingly, there are pressure relief grooves 102f4 and compression seal grooves 102f5, and a pressure relief valve (not shown) communicating with the pressure relief groove on the pressure relief fastening block is provided on the corresponding pressure relief fastening block; these A number of pressure relief fastening blocks can be connected to each other in turn along the circumferential direction (such as the circumferential direction of the pipeline) to form a pressure relief fastening body, and the arc-shaped placement grooves on all the pressure relief fastening blocks cooperate with each other to form a pressure relief fastening body. The extending direction of the solid is provided with arranging through holes matched with the pipes, and at the same time, the pressure relief grooves and compression sealing grooves on all the pressure relief fastening blocks cooperate with each other to form corresponding pressure relief chambers 102a and compression sealing chambers 102c.

For each pressure relief fastening block and its adjacent pressure relief fastening block, a sealing fit structure 102f2 is adopted between the contact and mating surfaces, such as setting a corresponding sealing strip or sealant layer between the mating surfaces, As long as the sealing connection between the two can be guaranteed.

The number of pressure relief fastening blocks can be determined according to actual needs. In the example scheme shown in Figure 3, the pressure relief fastening body is formed by connecting two upper and lower pressure relief fastening blocks, which makes it easier to operate and carry. convenient. However, for those pressure relief fastening bodies suitable for pipelines with very large pipe diameters, more than two pressure relief fastening blocks can be connected and composed, which can be determined according to actual needs.

For the clamping parts (not shown in the figure), various structures can be adopted in the present invention according to the requirements, as long as the pressure relief fastening blocks can be clamped, so that the tight pressure relief fastening blocks are in sealing contact and at the same time tightly clamped It is enough to hold the pipeline, such as various clamping nuts, various fastening straps and the like can be used. Wherein, the specific clamping position of the tightening part can be determined according to actual needs, and is generally located at both ends of the pressure relief fastening block.

On the basis of the above-mentioned solution, the present invention also provides a further optimization solution: a positioning component 103 is further provided in the composition structure of the above-mentioned online pipeline leakage plugging device 100 . The positioning part is used to quickly and accurately determine the sealing position of the sealing device on the pipeline, and this part determines the corresponding sealing on the pipeline according to the corresponding relationship between the compressed sealing cavities 102c in the pressure relief fastening part 102 position, thereby realizing the corresponding cooperation between the sealing part and the compression sealing cavity 102c.

Based on the above requirements and principles, the positioning component can adopt different structures according to the requirements of the application occasion and the actual situation. If a scale is used, it is easy to use and can be used in various occasions. Use a ruler to measure the distance between the compressed sealing chambers 102c in the pressure relief fastening part 102, and then use the ruler to measure and determine the corresponding sealing position on the pipeline according to the measured distance, and make the determined sealing position located at the leakage port On both sides, it is both accurate and convenient.

Referring to Fig. 5, in the present invention, the positioning member 103 adopted is a hollow hoop structure with a certain width, which includes a connecting arm 103a and two hoops 103b, and the two hoops 103b are respectively vertically arranged at both ends of the connecting arm 103a , the clamp 103b has a circular arc-shaped slot, the size of which corresponds to the outer diameter of the pipe, which is convenient for being stuck on the pipe. The overall length of the positioning part thus formed corresponds to the distance between the compression sealing cavities 102c in the pressure relief fastening part 102 . In this way, when determining the sealing position, as long as the entire positioning part is clamped on the pipe through the clamp according to the position of the leakage port, the position corresponding to the clamps at both ends is the sealing position, and the adhesive seal is directly adhered to the clamp parts.

In order to ensure that the positioning component can be better clamped on the pipeline during positioning, the hoop in the positioning component has a certain width, which can increase the contact area between the two and improve the clamping effect. At the same time, the hoop in the positioning part also has a certain thickness, which can prevent the leaked medium from affecting the sealing position during the positioning operation (prevent water from wetting the sealing position), and facilitate the subsequent sealing operation.

The positioning component formed by the above scheme can only be applied to the situation of using two sealing components. For the situation of multiple sealing components, the connecting arm can be fixed according to the principle of the above scheme according to the pressure relief fastening component 102. A plurality of clips can be set at different intervals between each compression sealing cavity 102c (the specific principle is as described above, and will not be described here).

In actual operation, other structures can be used for the fixed part that determines the sealing position according to the distance between the compression sealing cavities 102c in the pressure relief fastening part 102, and are not limited to the above two solutions.

Based on the above-mentioned device, the process of the present invention for online plugging of pipelines is as follows (see Figure 6):

(1) After the pipeline ruptures, determine the sealing position of the sealing parts according to the position of the leakage port on the pipeline, and the distance between the determined sealing positions and the distance between the compressed sealing chambers in the pressure relief fastening parts The spacing is corresponding and distributed on both sides of the leakage port.

In this step, the sealing position can be determined by the corresponding positioning parts: according to the position of the leakage port, the positioning part is set on the pipeline, and at this time, the corresponding positions determined by the two ends of the positioning part on the pipeline are the sealing positions, which is very Accurate and fast.

(2) After determining the corresponding sealing position, apply the adhesive sealant on the adhesive surface of the sealing part, and stick the sealing part to the sealing position marked on the pipe through the adhesive sealant.

In this step, before the sealing is performed, the surface of the pipeline can be cleaned first, so that the influence of the leaked medium on the sealing effect can be avoided.

Since the sealing parts are distributed on both sides of the leakage port, and there is no barrier around the leakage port (or any leakage blocking parts), it will not affect the flow direction of the leaked medium (the leaked medium will be sprayed directly forward from the leak port , that is, it flows out along its vertical direction without affecting its two sides), so as to avoid the leakage of the medium from affecting the adhesive seal and ensure the effect of the adhesive seal. A small amount of medium flows out to both sides, and the clamp in the positioning part can block this part of the medium to prevent it from affecting the sealing position.

When performing adhesive sealing, each arc-shaped adhesive sealing part that forms the ring-shaped adhesive sealing part is sealed and bonded to the adhesive sealing position in turn according to the characteristics of the arc shape, and the adjacent arc-shaped adhesive sealing parts can be sealed by sealing. The disassembled connecting structures are sequentially sealed and connected, so that all the arc-shaped adhesive sealing parts are distributed around the circumference of the pipeline, and connected in sequence to form annular adhesive sealing parts that seal and wrap the pipeline.

(3) After the adhesive sealing parts are firmly bonded, remove the positioning parts, and then open the pressure relief valve on the pressure relief fastening part, and according to the leakage port and the distribution position of the adhesive sealing device, place the clamp corresponding to the pressure relief fastening part. Tightly fit on the pipeline, and make the upper pressure relief chamber correspond to the leakage port, and at the same time make the compression sealing chamber on the pressure relief fastening part seal fit with the sealing part bonded to the pipe, and make the sealing part Create pressure facing the pipe. At this time, the medium leaked from the pipeline leakage port is discharged from the leak plugging device through the pressure relief chamber and the opened pressure relief valve, so as to avoid the leakage of the medium from affecting the sealing operation of the leak plugging device; if the leaked medium pollutes the environment, it can be used The recovery device communicates with the pressure relief valve to recover the medium.

In this step, when the pressure relief fastening part is clamped on the pipeline, firstly, according to the pressure relief groove and the compression sealing groove on the pressure relief fastening block forming the pressure relief fastening part and the leakage port on the pipeline and the sealing part According to the corresponding relationship, each pressure relief fastening block is sequentially placed on the outer wall of the pipeline according to the arc-shaped placement groove on it, and the adjacent pressure relief fastening blocks are sealed by a sealing structure (such as a sealing strip or a sealant layer) etc.), so that all the pressure relief fastening blocks are arranged along the circumferential direction of the pipeline, and all the pressure relief fastening blocks are connected to form a pressure relief fastening part wrapping the pipe; then, use the clamping parts to tighten all the pressure relief Fastening blocks such that all pressure relief fastening blocks are clamped to the pipe while allowing a sealing fit between adjacent pressure relief fastening blocks.

In this step, plugging is performed only after the sealing parts and the pipeline have been firmly bonded, so as to further avoid the leakage of the medium from affecting the sealing effect of the adhesive sealant, and greatly improve the sealing effect. Under the influence of the fastening parts, the leaked medium flows to the sealing parts on both sides. Since the sealing parts have been firmly sealed, the leaking medium will not affect the sealing effect of the adhesive sealant, which effectively improves the reliability of plugging. There is no problem of secondary leakage.

(4) After the pressure relief fastening parts are clamped, close the pressure relief valve on it to complete the plugging. During this process, the medium in the pipeline enters the pressure relief chamber from the leakage port under pressure, but cannot be discharged from the pressure relief chamber. As the medium continues to enter, the pressure in the pressure relief chamber continues to increase, and the pressure relief Some medium in the cavity will enter the compression sealing cavity on both sides from the gap between the pressure relief fastening part and the pipeline. Since the compression sealing cavity is completely sealed with the sealing part, and the sealing part and the sealing part When the pipes are sealed and bonded, the medium entering the compression sealing cavity cannot be discharged from the pressure relief fastening parts; with the continuous entry of the medium, the pressure in the pressure relief cavity and the pressure of the part of the medium flowing into the compression sealing cavity The pressure will be consistent with the pressure in the pipeline. At this time, the medium in the pipeline will no longer enter the plugging device, so that the medium in the pipeline can be transmitted at the initial pressure to ensure that the corresponding equipment or process can be carried out effectively.

After the corresponding work of the pipeline is finished, the pressure relief fastening parts on it can be disassembled and recycled for reuse. When disassembling, first open the pressure relief valve to discharge the medium in the plugging device, then loosen the clamping parts on the pressure relief fastening parts, and finally remove the pressure relief fastening parts on the pipeline, which can realize the pressure relief fastening parts reuse.

According to the characteristics of the above scheme, it has the following advantages during use:

1. It can plug the leakage of soft pipes such as fire hoses and hard pipes such as metal pipes online, and has strong practicability.

2. Use the pressure relief valve to effectively ensure the effectiveness of the seal and the recovery of the medium to avoid waste of resources.

3. The device is bonded to the hose or metal pipeline through the adhesive sealant to ensure the effectiveness of the seal.

4. The adhesive sealant used can be pre-applied or injected after clamping.

5. The scheme marks the leakage area, which is convenient for the operator to select the location for the adhesive sealant to be pasted.

6. When replacing the hose or pipe, the whole device can be removed and reused.

7. The whole device can be divided into different specifications according to the engineering size of soft pipes and hard pipes.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Variations and improvements are possible, which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A leak-stopping device for online pipelines, characterized in that the leak-stopping device comprises: A sealing part, the sealing part is glued to the pipe along the circumferential direction of the pipe through the sealing glue, and is distributed on both sides of the leak opening on the pipe, and at least one sealing part is glued and sealed on both sides of the leaking port ; A pressure relief fastening part, the pressure relief fastening part is detachably clamped on the pipeline, and wraps the upper leakage port of the pipeline; the pressure relief fastening part is provided with a pressure relief cavity matching the upper leakage port of the pipeline , after forming a sealed space between the leak plugging device and the leakage port of the pipeline, the leaked medium is pressure-relieved and diverted; the pressure-relieving fastening part is provided with a compression sealing cavity that is tightly matched with the adhesive sealing part, Clamp the sealing part to the pipe. 2. An online pipeline leak plugging device according to claim 1, characterized in that, the sealing member is an annular sealing member with a certain width, and the inner diameter of the annular sealing member is the same as that for plugging. The outer diameter of the pipe is matched, and its outer diameter, thickness and width are matched with the compression sealing chamber in the pressure relief fastening part; the inner surface of the ring-shaped adhesive sealing part is an adhesive surface provided with adhesive sealant. 3 . The online pipeline leakage plugging device according to claim 2 , wherein the ring-shaped sealing part is formed by detachable sealing connections between several arc-shaped sealing parts. 4 . 4. An online pipeline leak plugging device according to claim 1, characterized in that, the pressure relief fastening part comprises a pressure relief fastening body and a clamping part, and the pressure relief fastening body is composed of several pressure relief fastening parts. The blocks are sealed and detachably connected to each other. The inner surface of each pressure relief fastening block is provided with arc-shaped placement grooves along its extending direction, and corresponding pressure relief grooves and compression sealing grooves are provided; the several The pressure relief fastening blocks are sequentially connected to each other along the circumferential direction to form a pressure relief fastening body, and the arc-shaped placement grooves on all the pressure relief fastening blocks cooperate with each other to form a set along the extending direction of the pressure relief fastening body to match the pipeline. The through holes are arranged, and at the same time, the pressure relief grooves and compression sealing grooves on all pressure relief fastening blocks cooperate with each other to form corresponding pressure relief chambers and compression sealing chambers; the clamping parts connect and clamp all pressure relief fastening piece. 5. An online pipeline leakage plugging device according to claim 1 or 4, characterized in that at least one pressure relief valve is arranged on the pressure relief fastening part, and the pressure relief valve and the pressure relief fastening part The internal pressure relief chamber is connected. 6 . The leak-stopping device for online pipeline according to claim 1 , further comprising a positioning component for positioning the sealing position of the sealing component. 7 . 7. An online pipeline plugging method, characterized in that, the plugging method comprises the steps of: (1) After the pipeline ruptures, determine the sealing position of the sealing parts according to the position of the leakage port on the pipeline; (2) Apply adhesive sealant on the adhesive surface of the adhesive sealing part, and bond the adhesive sealing part to the corresponding sealing position on the pipeline through the adhesive sealant; (3) After the adhesive sealing part is firmly bonded, the pressure relief fastening part is clamped on the pipeline correspondingly, and the pressure relief chamber on it is matched with the leakage port of the pipeline so that The medium enters the pressure relief cavity; at the same time, the compression sealing cavity on the pressure relief fastening part is sealed and matched with the adhesive sealing part bonded to the pipeline, and forms a pressure on the adhesive sealing part facing the pipeline; (4) After the medium has no leakage at all, complete the plugging. 8. A kind of online pipeline plugging method according to claim 7, characterized in that, in the step (1), the positioning component is arranged on the pipeline and corresponds to the leakage port, at this time, the two ends of the positioning component are on the pipeline The corresponding position determined above is the sealing position. 9. An online pipeline plugging method according to claim 7, characterized in that, when the pressure relief fastening parts are clamped in the step (3), firstly, according to the pressure relief fastening parts that make up the pressure relief fastening parts The corresponding relationship between the pressure relief groove and compression sealing groove on the block and the leakage port and the adhesive sealing part on the pipeline, each pressure relief fastening block is placed on the outer wall of the pipeline in turn through the arc-shaped placement groove on it, and the corresponding Adjacent pressure relief fastening blocks are connected by a sealing fit structure, so that all pressure relief fastening blocks are arranged along the circumferential direction of the pipeline, and all pressure relief fastening blocks are sequentially connected to form a pressure relief fastening component wrapping the pipeline ; Then, tighten all the pressure relief fastening blocks by using the clamping parts, so that all the pressure relief fastening blocks are clamped on the pipeline, and at the same time make the sealing fit between the adjacent pressure relief fastening blocks. 10 . The online pipeline leakage plugging method according to any one of claims 7 to 9 , characterized in that the leakage prevention method further comprises the step of recycling the fastening components after the pipeline is not in use. 11 .