CN216768758U - Pipeline plugging fixture with pressure - Google Patents

Abstract

The utility model belongs to the technical field of pipeline maintenance, and particularly relates to a pipeline pressure leakage stopping clamp which comprises a connecting clamp and a pressure clamp, wherein the connecting clamp and the pressure clamp are of semicircular ring structures matched with each other, a pressure rod is fixedly connected to the outer wall of the pressure clamp, the pressure rod is hinged with a pipeline and is perpendicular to the pipeline, the pressure rod rotates by taking a hinged point as an axis to drive the pressure clamp to approach and press a pipeline leakage point, the connecting clamp and the pressure clamp are fastened and closed through a fastener to form a circular ring structure, and the circular ring structure is sleeved on the outer wall of the pipeline. The utility model can meet the online plugging of a 360-degree leakage point of the pipeline, and when the leakage point is known, the angle of the pressure rod is changed by replacing the fixture to lengthen the pressure rod, so that the valve can be installed from the outer side of the pipeline without closing the valve until the switching condition is met. The leak is treated with minimal economic loss.

Description

Pipeline plugging fixture with pressure

Technical Field

The utility model belongs to the technical field of pipeline maintenance and repair, and particularly relates to a pipeline blocking clamp with pressure.

Background

When the pipeline equipment runs for a long time, the pipeline is corroded by a running medium or an external environment, such as marine corrosion, underground wet corrosion, pipeline defects and the like, and leakage points, cracks and transverse long cracks are formed; the current construction scheme has two kinds:

(1) and closing the local valve, and performing gas cutting replacement welding on the local pipe section. The technical scheme can fundamentally solve the problems, but a plurality of objective factors exist on site, such as untight and untight closing of the valve or leakage of the valve on a main pipeline, influence on the safe operation of the device, and the maintenance period is long.

(2) Temporary treatment: and (4) plugging the leakage point by adopting a pipe hoop, a hoop and a pipe clamp. The scheme is only suitable for point leakage points and cannot be used for transverse long leakage points. Or the winding method is used, so that the field workload is large, and time and labor are wasted.

Disclosure of Invention

According to the defects of the prior art, the utility model aims to provide the simple and feasible fixture which is used for plugging the pipeline, can perform online plugging treatment, keeps equipment to run stably, and is disassembled for air cooling maintenance treatment when the system is normally stopped.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the pipeline under-pressure leaking stoppage fixture comprises a connecting fixture and a pressure fixture, wherein the connecting fixture and the pressure fixture are semicircular ring structures matched with each other, a pressure rod is fixedly connected to the outer wall of the pressure fixture, the pressure rod is hinged to a pipeline and perpendicular to the pipeline, the pressure rod rotates by taking a hinge point as an axis to drive the pressure fixture to be close to and compress a pipeline leaking point, the connecting fixture and the pressure fixture are fastened and closed through a fastening piece to form a circular ring structure, and the circular ring structure is sleeved on the outer wall of the pipeline leaking point.

Further, the connection jig and the pressure jig extend in the axial direction, and the axial length of the connection jig and the pressure jig is greater than the leakage length.

Preferably, the connection clamp and the pressure clamp are cut to be greater than the leakage length plus 200mm according to the transverse leakage length of the pipeline, and the connection clamp is arranged at the position opposite to the leakage of the pipeline.

Furthermore, two groups of fixing clamps are arranged on the pipeline, the pipeline leakage point is located between the two groups of fixing clamps, each group of fixing clamps is connected with the shaft sleeve through the shaft sleeve frame, the central line of the shaft sleeve is parallel to the central line of the pipeline, the central lines of the two shaft sleeves are overlapped, a certain angle is formed between the shaft sleeve and the pipeline leakage point, and the pressure rod is hinged to the shaft sleeve through the shaft rod.

Furthermore, the two shaft sleeves and the pipeline are positioned on a balance surface, and an included angle between the shaft sleeves and the leakage position of the pipeline is 60-120 degrees.

Furthermore, the shaft rod is arranged at one end, close to the pressure clamp, of the pressure rod, extends along the axial direction of the pipeline, is perpendicular to the pressure rod, and is matched with the inner diameter of the shaft sleeve to rotate relatively to form a hinge point for hinging the pressure rod and the pipeline; the pressure bar is fixedly connected to the middle of the shaft lever, the two ends of the shaft lever are connected with limit nuts through threads, and the relative positions of the shaft lever and the two shaft sleeves are fixed through the limit nuts.

Furthermore, the fixing clamp comprises two hoops which are encircled to form a ring, the two hoops are combined through connecting lugs at two ends and a bolt group in threaded connection with the connecting lugs, the shaft sleeve is arranged on the outer wall of one of the hoops, the inner diameter of the fixing clamp is provided with a detachable inner pipe sleeve, and the inner diameter of the inner pipe sleeve is matched with the outer diameter of the pipeline.

Furthermore, the inner diameters of the connecting clamp and the pressure clamp are respectively provided with a sealing element, and the inner diameter of the sealing element is matched with the outer diameter of the pipeline to be plugged.

Preferably, the sealing member is an inner silica gel plate, the inner diameter of the inner silica gel plate is matched with the outer diameter of the pipeline to be plugged, and the thickness of the silica gel plate is 10 mm.

Furthermore, the outer wall of the pressure fixture and the end part of the pressure rod are respectively provided with two corresponding positioning plate frames, the positioning plate frames are provided with connecting holes, and the two positioning plate frames are fixedly connected through connecting bolts.

Based on above-mentioned technical scheme, the location grillage of pressure fixture outer wall and pressure bar tip links into an organic whole through four connecting bolt, and the pressure bar of pressure fixture carries out the luffing motion through the articulated of axostylus axostyle and axle sleeve to drive pressure fixture and exert pressure to the leakage department, pressure derive from the pressure bar and exert pressure downwards, and the sealing member carries out the shutoff through pressure to pipeline leakage department in the pressure fixture, or reduces and lets out the leakage quantity.

And the pressure rod is vertically provided with a water baffle, and the end part of the water baffle extends towards the direction of the fixture in an arc shape. The pressure fixture is close to the leakage position, the leakage medium can change the direction, and the water baffle is arranged to effectively block the leakage medium, so that the operation of constructors is facilitated.

Further, the fastener includes fastening bolt and fastening nut, connect fixture both sides and set up a plurality of connecting plate ears, a plurality of connecting plate ears along axial align to grid, pressure fixture's both sides set up a plurality of connecting plate ears, and a plurality of connecting plate ears along axial align to grid, the connecting plate ear of connecting fixture and the connecting plate ear one-to-one of pressure fixture set up, and two connecting plate ears that every group correspondence set up pass through fastening bolt to be connected, and fastening bolt's both ends spiro union fastening nut, fastening nut support and press on the connecting plate ear.

The leakage blocking method of the pipeline pressurized leakage blocking clamp comprises the steps of installing a fixing clamp on a pipeline at two ends of a leakage point to enable a shaft sleeve and the leakage point to form a certain angle; the connecting clamp and the pressure clamp are installed at the leakage point, the shaft rod fixedly connected with the pressure rod penetrates into the shaft sleeves at two ends, the pressure rod rotates by taking the shaft rod and the shaft sleeves as fulcrums, the pressure clamp is tightly pressed on the leakage point of the pipeline, the connecting clamp and the pressure clamp are fastened through the fastener, and the position of the pressure clamp is fixed.

Further, when the leak point is at the lower half part of the pipeline, the connecting clamp is moved to the reverse side of the leak point of the pipeline through the pipeline, then the shaft lever and the shaft sleeve are connected, the pressure lever is rotated to enable the pressure clamp to be tightly pressed on the leak point of the pipeline, and the connecting clamp and the pressure clamp are fastened through the fastener to finish leak stoppage; when the leak source is positioned at the upper half part of the pipeline, the shaft lever and the shaft sleeve are firstly connected, the pressure lever is rotated, the pressure clamp is tightly pressed on the leak source of the pipeline, the inclination angle of the pressure lever is kept unchanged, and then the connection clamp is sent into the pipeline and fastened with the pressure clamp, so that the leak stoppage is completed.

Further, the length of the pressure rod, and the connection angle between the pressure rod and the pressure fixture are adjusted according to the position of the leakage point, and the diameters of the connection fixture and the pressure fixture are formed according to the diameter of the pipeline.

Further, the inner diameters of the connection clamp and the pressure clamp are connected with the sealing element by gluing, and the sealing element is pressed and blocked at the leakage point of the pipeline.

The utility model has the beneficial effects that: the utility model can meet the online plugging of a 360-degree leakage point of the pipeline, and when the leakage point is known, the angle of the pressure rod is changed by replacing the fixture to lengthen the pressure rod, so that the valve can be installed from the outer side of the pipeline without closing the valve until the switching condition is met. The leak is treated with minimal economic loss.

Drawings

FIG. 1 is a schematic view of a connection fixture;

FIG. 2 is a schematic view of a pressure clamp;

FIG. 3 is a schematic view of a fixing jig;

FIG. 4 is a schematic view of a pressure rod assembly;

FIG. 5 is a schematic view illustrating the operation of the plugging fixture;

in the figure: 1. the connecting clamp is connected with the plate lug; 2. connecting a fixture; 3. the pressure clamp is connected with the plate lug; 4. a pressure fixture; 5. positioning the plate frame; 6. connecting holes; 7. hooping; 8. an inner pipe sleeve; 9. a shaft sleeve; 10. a shaft sleeve frame; 11. connecting lugs; 12. a bolt group; 13. a shaft lever; 14. a water baffle; 15. a pressure lever; 16. fastening a bolt; 17. a fastening nut 18 and a limiting nut.

Detailed Description

In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the drawings in the embodiments of the present invention.

Referring to fig. 1-5, the clamp for blocking leakage of a pipeline under pressure comprises a connecting clamp 2 and a pressure clamp 4, wherein the connecting clamp 2 and the pressure clamp 4 are semi-circular ring structures which are matched with each other, the connecting clamp 2 and the pressure clamp 4 extend along the axial direction, and the axial length of the connecting clamp 2 and the axial length of the pressure clamp 4 are greater than the leakage length. The outer wall of the pressure fixture 4 is fixedly connected with a pressure rod 15, the pressure rod 15 is hinged with the pipeline and perpendicular to the pipeline, the pressure rod 15 rotates by taking a hinged point as an axis to drive the pressure fixture 4 to be close to and press the leakage point of the pipeline, the connecting fixture 2 and the pressure fixture 4 are fastened and closed through fasteners to form a circular ring structure, and the circular ring structure is sleeved on the outer wall of the leakage point of the pipeline.

Preferably, the connection clamp 2 and the pressure clamp 4 are cut to be greater than the leakage length plus 200mm according to the transverse leakage length of the pipe, and the connection clamp 2 is installed at the position opposite to the leakage of the pipe.

Furthermore, two groups of fixing clamps are arranged on the pipeline, the pipeline leakage point is located between the two groups of fixing clamps, each group of fixing clamps is connected with the shaft sleeve 9 through the shaft sleeve frame 10, the central line of the shaft sleeve 9 is parallel to the central line of the pipeline, the central lines of the two shaft sleeves 9 are overlapped, a certain angle is formed between the shaft sleeve 9 and the pipeline leakage point, and the pressure rod 15 is hinged with the shaft sleeve 9 through the shaft rod 13.

Based on the above technical solutions, it should be noted that. The plugging clamp provided by the utility model is an under-pressure plugging clamp in the online running process of a pipeline. In the process of plugging, the medium in the pipeline is conveyed and splashes outwards from a leaking point. Therefore, the leaking stoppage fixture is fixed in an artificial pressurization mode in the leaking stoppage process. Prevent that fixture from being impacted by the medium of splash and can't laminating the pipeline leak source. The pressure rod 15 is an auxiliary part for manually pressurizing the pressure fixture 4, and the hinge point formed by the shaft rod 13 and the shaft sleeve 9 is used for providing a fulcrum for the pressurizing process of the pressure rod. Because the fulcrum is close to the pressure fixture 4, the power arm is long, and the resistance arm is short, the pressure fixture 4 can be pressurized under the condition of labor saving, and the pressure fixture is used for resisting the resistance caused by the outward splashing of the medium and realizing the plugging of a leakage point.

Furthermore, the two shaft sleeves 9 and the pipeline are positioned on a balance surface, and an included angle between the shaft sleeve and the leakage position of the pipeline is in a range of 60-120 degrees, for example, a 90-degree force application effect is good.

Further, the shaft rod 13 is arranged at one end, close to the pressure clamp 4, of the pressure rod 15, the shaft rod 13 extends along the axial direction of the pipeline, the shaft rod 13 is arranged perpendicular to the pressure rod 15, and the shaft rod 13 is matched with the inner diameter of the shaft sleeve 9 to rotate relatively to form a hinge point for hinging the pressure rod 15 with the pipeline; the pressure rod 15 is fixedly connected to the middle of the shaft rod 13, the two ends of the shaft rod 13 are connected with limit nuts 18 through threads, and the relative positions of the shaft rod 13 and the two shaft sleeves 9 are fixed through the limit nuts 18.

Further, the fixing clamp comprises two hoops 7 which are encircled to form a ring, the two hoops are combined through connecting lugs 11 at two ends and a bolt group 12 in threaded connection with the connecting lugs, a shaft sleeve 9 is arranged on the outer wall of one of the hoops 7, a detachable inner pipe sleeve 8 is arranged on the inner diameter of the fixing clamp, and the inner diameter of the inner pipe sleeve 8 is matched with the outer diameter of the pipeline.

Further, the inner diameters of the connecting clamp 2 and the pressure clamp 4 are respectively provided with a sealing element, and the inner diameter of the sealing element is matched with the outer diameter of the pipeline to be plugged.

Preferably, the sealing member is an inner silica gel plate, the inner diameter of the inner silica gel plate is matched with the outer diameter of the pipeline to be plugged, and the thickness of the silica gel plate is 10 mm.

Further, 4 outer walls of pressure fixture and 15 tip of pressure pole set up two corresponding location grillages 5 respectively, are equipped with connecting hole 6 on the location grillage 5, through connecting bolt with two location grillages fixed connection.

Based on above-mentioned technical scheme, 4 outer walls of pressure fixture and the location grillage 5 of 15 tip of pressure pole link into an organic whole through four connecting bolt, and the pressure pole 15 of pressure fixture 4 carries out luffing motion through the articulated of axostylus axostyle 13 and axle sleeve 9 to drive pressure fixture 4 and exert pressure to the leakage department, pressure derive from pressure pole 15 and exert pressure downwards, and the sealing member carries out the shutoff through pressure to pipeline leakage department in pressure fixture 4, or reduces the leakage volume.

Furthermore, the locating plate frame 5 is welded at the central position of the outer wall of the pressure clamp 4, so that the contact force between the pressure clamp 4 and the outer wall of the pipeline is uniform when the pressure rod 15 applies force.

The pressure rod 4 is vertically provided with a water baffle 14, and the end part of the water baffle 14 extends in an arc shape towards the direction of the fixture. The pressure fixture 4 is close to the leakage position, the leakage medium can change the direction, and the water baffle plate 14 is arranged to effectively block the leakage medium, so that the operation of constructors is facilitated.

Further, the fastener includes fastening bolt 16 and fastening nut 17, connect fixture both sides and set up a plurality of connecting plate ears 1, a plurality of connecting plate ears along axial align to grid, pressure fixture's both sides set up a plurality of connecting plate ears 3, and a plurality of connecting plate ears along axial align to grid, and connecting fixture's connecting plate ear 1 and pressure fixture's connecting plate ear 3 one-to-one set up, and two connecting plate ears that every group corresponds the setting pass through fastening bolt 16 to be connected, and fastening bolt 16's both ends spiro union fastening nut 17, fastening nut 17 support press on the connecting plate ear.

The leakage stopping method of the pipeline pressurized leakage stopping clamp comprises the steps of installing a fixing clamp on the pipeline at two ends of a leakage point to enable a shaft sleeve to form a certain angle with the leakage point; the connecting clamp 2 and the pressure clamp 4 are installed at a leakage point, the shaft rod 13 fixedly connected with the pressure rod 15 penetrates into the shaft sleeves 9 at two ends, the pressure rod 15 rotates by taking the shaft rod 13 and the shaft sleeves 9 as fulcrums, the pressure clamp 4 is tightly pressed on the leakage point of the pipeline, the connecting clamp 2 and the pressure clamp 4 are fastened through fasteners, and the position of the pressure clamp 4 is fixed.

Further, when the leak point is at the lower half part of the pipeline, the connecting clamp 2 is moved to the reverse side of the leak point of the pipeline through the pipeline, then the shaft rod 13 and the shaft sleeve 9 are connected, the pressure rod 15 is rotated to enable the pressure clamp 4 to be tightly pressed on the leak point of the pipeline, and the connecting clamp 2 and the pressure clamp 4 are fastened through a fastener to complete leak stoppage; when the leak point is on the upper half part of the pipeline, firstly, the shaft lever 13 and the shaft sleeve 9 are connected, the pressure rod 15 is rotated to enable the pressure clamp 4 to be tightly pressed on the leak point of the pipeline, the inclination angle of the pressure rod 15 is kept unchanged, and then the connecting clamp 2 is sent into the pipeline to be fastened with the pressure clamp 4, so that the leak stopping is completed.

Further, the length of the pressure rod 15, the connection angle of the pressure rod 15 and the pressure fixture 4 are adjusted according to the position of the leakage point, and the diameters of the connection fixture 2 and the pressure fixture 4 are formed according to the diameter of the pipeline.

Further, the inner diameters of the connection jig 2 and the pressure jig 4 are connected by gluing with a sealing member that is press-fitted at a pipe leakage point.

Further, after the connecting clamp 2 and the pressure clamp 4 are combined to form a circular ring, the positions of the connecting clamp 2 and the pressure clamp 4 are kept unchanged, the fastening bolt and the fastening nut are manually screwed, and the connecting clamp 2 and the pressure clamp 4 are fastened through the connecting clamp connecting plate lug 1 and the pressure clamp connecting plate lug 3.

Furthermore, the pipe sections for connecting the clamping apparatus 2 and the pressure clamping apparatus 4 can be prefabricated slightly longer in advance, the pipe sections with the specification of DN80 mm-DN 250mm and the like have the same inner diameter as the outer diameter of the pipe, the pipe sections are cut according to the actual leakage length on site, the clamping apparatus positioning plate frame is welded at the center of the clamping apparatus, and the connecting holes are universal in size.

In fact, in order to adapt to all working conditions, clamps with different diameters need to be prepared, and the sizes of the welding positions of the pressure clamp positioning plate frames are the same. The inner pipe sleeves of the fixing clamps are replaced to be used for plugging pipelines of different models, and the diameters of the outer walls of the pipelines are selected to be similar to each other, so that the universality of the fixing clamps to a certain degree is realized.

Connecting a fixture: the outward thrust of the fixture is aimed at the constraint leakage part;

a pressure fixture: plugging a pipeline leakage part;

fixing a clamp: the connecting shaft sleeve and the connecting shaft rod provide hinge points which are connected with the pipeline into a whole when acting on plugging and play a fulcrum of force;

positioning the plate frame: when acting on plugging, the plugging device is integrated with a pressure clamp and moves freely through a connecting shaft sleeve and a connecting shaft rod.

A pressure rod: selecting a pull rod with a corresponding length for connection according to the distance between the leakage position and the operation surface; if the angle of the pressure rod can be changed for external reasons, or hydraulic pressure, gear transmission and the like are adopted to transmit the force of the pressure clamp closing to the leakage position.

Shaft lever: the screw pitch is shortened or lengthened by rotating the fixing nut, and the length of the clamp is matched;

the fixture is connected with the plate lug: the fastening bolt transmits the pressure to the pressure clamp through the connecting clamp;

the utility model can realize online leaking stoppage, keep equipment stable operation, remove the connecting clamp and the pressure clamp after the leaking stoppage, disassemble the fixing clamp and the connecting tool, and disassemble the leaking stopper and perform maintenance treatment by air cooling when the system is normally stopped.

The above list is only the preferred embodiment of the present invention. It is obvious that the utility model is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the utility model.

Claims (10)

1. The utility model provides a leaking stoppage fixture is pressed in pipeline area which characterized in that: the connecting clamp and the pressure clamp are semicircular ring structures which are matched with each other, a pressure rod is fixedly connected to the outer wall of the pressure clamp, the pressure rod is hinged to a pipeline and perpendicular to the pipeline, the pressure rod rotates by taking a hinged point as an axis to drive the pressure clamp to be close to and tightly press a pipeline leakage point, the connecting clamp and the pressure clamp are fastened through a fastener and closed to form a circular ring structure, and the circular ring structure is sleeved on the outer wall of the pipeline leakage point.

2. The pipe belt pressing plugging fixture as claimed in claim 1, wherein: the connecting clamp and the pressure clamp extend in the axial direction, and the axial length of the connecting clamp and the pressure clamp is greater than the leakage length.

3. The plugging fixture with pressure for pipelines according to claim 1, characterized in that: the pipeline is provided with two groups of fixing clamps, a pipeline leakage point is located between the two groups of fixing clamps, each group of fixing clamps is connected with a shaft sleeve through a shaft sleeve frame, the central line of the shaft sleeve is parallel to the central line of the pipeline, the central lines of the two shaft sleeves are overlapped, a certain angle is formed between the shaft sleeve and the pipeline leakage point, and the pressure rod is hinged with the shaft sleeve through a shaft rod.

4. The plugging fixture with pressure for pipelines according to claim 3, characterized in that: the shaft lever is arranged at one end, close to the pressure clamp, of the pressure rod, extends along the axial direction of the pipeline, is perpendicular to the pressure rod, and is matched with the inner diameter of the shaft sleeve to rotate relatively to form a hinge point for hinging the pressure rod and the pipeline.

5. The pipe belt pressing plugging fixture as claimed in claim 3, wherein: the pressure bar is fixedly connected to the middle of the shaft lever, the two ends of the shaft lever are connected with limit nuts through threads, and the relative positions of the shaft lever and the two shaft sleeves are fixed through the limit nuts.

6. The pipe belt pressing plugging fixture as claimed in claim 3, wherein: the fixing clamp comprises two hoops which surround to form a ring, the two hoops are combined through connecting lugs at two ends and bolts in threaded connection with the connecting lugs, and the shaft sleeve is arranged on the outer wall of one hoop.

7. The pipe belt pressing plugging fixture as claimed in claim 3, wherein: the inner diameter of the fixing clamp is provided with a detachable inner pipe sleeve, and the inner diameter of the inner pipe sleeve is matched with the outer diameter of the pipeline.

8. The pipe belt pressing plugging fixture as claimed in claim 1, wherein: the outer wall of the pressure fixture and the end part of the pressure rod are respectively provided with two corresponding positioning plate frames, the positioning plate frames are provided with connecting holes, and the two positioning plate frames are fixedly connected through connecting bolts.

9. The pipe belt pressing plugging fixture as claimed in claim 1, wherein: and the pressure rod is vertically provided with a water baffle, and the end part of the water baffle extends towards the pressure clamp in an arc shape.

10. The plugging fixture with pressure for pipelines according to claim 1, characterized in that: the fastener includes fastening bolt and fastening nut, connecting fixture both sides set up a plurality of connecting plate ears, and a plurality of connecting plate ears are along axial align to grid, the both sides of pressure fixture set up a plurality of connecting plate ears, and a plurality of connecting plate ears are along axial align to grid, and the connecting plate ear of connecting fixture and the connecting plate ear one-to-one of pressure fixture set up, and two connecting plate ears that every group correspondence set up pass through fastening bolt and connect, and fastening bolt's both ends spiro union fastening nut, fastening nut support and press on the connecting plate ear.

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