CN218761802U - Hydraulic underwater mechanical pipe clamp - Google Patents

Abstract

The utility model relates to a hydraulic underwater mechanical pipe clamp, which is provided with a pipe clamp main body, an opening and closing device, a fastening device and a sealing device; the pipe clamp main body is of a cylindrical structure and consists of two semi-cylindrical semi-main bodies, and a bolt sleeve, a top plate, a radial bolt and a hydraulic opening and closing device are arranged outside the semi-main bodies; the inner wall is provided with axial and circumferential sealing strips; two axial ends of the pipe clamp main body are respectively provided with a semicircular tightening flange, and the two tightening flanges are provided with axial fixing bolts, nuts and dust rings; the tightening flange is also provided with a locking bolt, and the bottom of the pipe clamp main body is provided with a base; the pipe clamp main body is also provided with a hoisting device and a sacrificial anode. The utility model is used for the maintenance engineering of pipeline under water, it is more convenient, more work-saving, more efficient advantage to have perfect structure, installation maintenance operation, can conveniently connect shutoff and perfect maintenance with revealing or damaged pipeline fast, guarantees the normal operating of pipeline.

Description

Hydraulic underwater mechanical pipe clamp

Technical Field

The utility model relates to a technical field of pipeline repair equipment under water specifically is a fluid pressure type machinery pipe strap under water, is an important equipment that extensively is used for carrying the quick repair operation of pipelines such as oil gas.

Background

The total length of the submarine pipelines laid by China's offshore oil companies is over 2000km, and many pipelines run for a long time. After the 90 s of the 20 th century, the accidents of submarine pipeline damage increased year by year. This situation not only affects the offshore oil and gas production, but also the cost of remediation is as high as several millions of yuan. The damage to the submarine pipeline, such as cracking, leakage, disconnection, etc., is caused by many reasons, and there are often material defects, various corrosions, weld defects, external force damages, such as ship anchor dragging, etc. If the maintenance is not carried out in time, serious accidents such as production stop or environmental pollution are caused.

The pipe clamp is an important device in the construction of repairing or changing the pipeline and plays an important role in connecting the pipeline and repairing the pipeline. In the pipeline maintenance or construction operation, the commonly used pipe clamp is in a glue injection pipe clamp form or a pipe clamp without a hydraulic cylinder. However, the two forms have great defects that (1) the glue injection is time-consuming and labor-consuming, and the risk of uneven glue injection is caused. (2) The pipe clamp without the hydraulic cylinder cannot be operated quickly and flexibly, has poor clamping fixity, and cannot be operated remotely or underwater conveniently. (3) The existing pipe clamp sealing component has poor firmness, can not be better sealed, and has short service life. Therefore, the improvement of the existing pipe clamp technology is urgently needed, the performance and the quality are improved, and the requirements of a large number of underwater pipeline repairing projects are better met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned technical problem, provide a fluid pressure type machinery pipe strap under water, this equipment adopts the fluid pressure type fixed knot that opens and shuts to construct, inseparable fixed and more efficient sealed setting. The pipeline plugging device has the advantages of complete structure, more convenient installation and repair operation, more labor saving and more efficiency, can quickly and conveniently connect, plug and perfectly repair the leaked or damaged pipeline, and can ensure the normal operation of the pipeline for a longer time.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

the utility model provides a fluid pressure type is mechanical pipe strap device under water, is equipped with pipe strap main part, device, fastener, sealing device that open and shut, its characterized in that: the pipe clamp comprises a pipe clamp body, a top plate and a plurality of mounting bolts, wherein the pipe clamp body is of a cylindrical structure with openings at two ends, the body is composed of two semi-cylindrical semi-bodies which are convenient to open and close, two bolt sleeves and the top plate for connecting and fixing the semi-bodies are fixedly arranged on the outer walls of the upper side and the lower side of the semi-bodies, the sleeves are provided with a row of radial screw holes with internal threads for mounting the bolts, and the top plate is arranged at the end head inside the sleeve and is provided with radial bolts matched with the screw holes of the sleeves; the left and right circumferential edges of the inner walls of the two half main bodies are respectively provided with a semicircular annular sealing strip, and two side edges of the sealing strip are respectively provided with a metal wrap angle for increasing the strength of the sealing strip; the inner sides of the upper and lower axial edges of the two half main bodies are respectively provided with an axial sealing strip; the two half main bodies forming the pipe clamp main body have the same structure and are symmetrically arranged, and the two half main bodies share a set of upper and lower radial bolts for connecting and fixing the two half main bodies; be equipped with on the outer wall at the axial border of two halves main part the device that opens and shuts, this device that opens and shuts are two sets of fluid pressure type, establish respectively on the axial of two halves main part about both ends outer wall, every group is equipped with a pneumatic cylinder, the both ends of every pneumatic cylinder: cylinder body one end and piston outer end, the upper end of a landing leg of swing joint respectively, the lower extreme of every landing leg is fixed respectively on the border on the outer wall that two half main parts correspond, and the connected mode is: when the piston of the hydraulic cylinder extends outwards, the two support legs are pushed away, and when the piston retracts inwards, the two support legs are retracted, so that the two half main bodies can be opened and closed from the upper parts; in addition, two axial ends of the pipe clamp main body are respectively provided with a jacking flange, the two jacking flanges are formed by two semicircular semi-flanges, the semicircular wall of each semi-flange is internally provided with a plurality of axial screw holes, the number and the positions of the screw holes correspond to the axial screw holes arranged on the left end surface and the right end surface of the pipe clamp main body, and the screw holes are provided with a corresponding number of axial fixing bolts and nuts, and the fixing bolts and the nuts penetrate and are fixed in the axial screw holes on the semi-flanges and the pipe clamp main body, so that the semi-flanges and the pipe clamp main body are fixed together; a semi-annular dustproof ring is arranged on the inner wall of the semi-flange; the two half flanges at each end of the pipe clamp main body have the same structure and are symmetrically arranged; the outer walls of the upper joint and the lower joint of the two half flanges are respectively provided with a locking bolt, the locking bolts are composed of bolt seats with holes arranged on the outer walls of the two half flanges and bolt rods penetrating through the bolt seats, the two half flanges are locked and fixed into a complete tightening flange by the locking bolts, and the tightening flanges at the two ends of the pipe clamp main body are identical in structure and symmetrically arranged; the sleeve, the top plate, the radial bolt and the tightening flanges at the two ends of the main body form the fastening device; the annular sealing strip, the axial sealing strip and the dustproof ring form the sealing device.

The utility model discloses further supplementary scheme of implementing, perfecting and optimizing is:

and a pressure test hole for testing the pressure and the sealing effect in the pipe clamp main body and a pressure gauge are arranged on the side wall of the pipe clamp main body.

And after the two half flanges are combined, the groove and the lug are matched with each other to ensure that the two half flanges are accurately combined and fixed.

The sleeve on the outer wall of the pipe clamp main body is also provided with a T-shaped bolt, the T-shaped bolt vertically extends into the threaded hole on the sleeve, the lower end of the T-shaped bolt is propped against the radial bolt to clamp or release the radial bolt, and the radial bolt is locked before being screwed and fixed to prevent the radial bolt from falling out.

And a sacrificial anode for prolonging the service life of the pipe clamp is arranged on the outer wall of the pipe clamp main body.

And a hoisting device formed by hoisting rings is arranged on the outer wall of the pipe clamp main body.

And a fixed seat for integrally fixing the pipe clamp is arranged at the bottom of the tightening flange.

The utility model discloses a theory of operation: firstly, selecting a pipe clamp with proper diameter and axial length according to the diameter of a pipeline to be repaired and the length of a damaged position, wherein the inner diameter of the pipe clamp is required to be 1-5mm greater than the outer diameter of the repaired pipeline, and the length of the pipe clamp can completely cover the damaged position of the pipeline. The pipe clamp is then wrapped around the pipe repair by the hoist and is maintained concentric with the pipe. Through the hydraulic pressure device that opens and shuts to utilize the locating pin, more accurate closed main part is to accurate state. Through rotating the T-shaped bolt, the locked radial bolt is loosened, then the radial bolts at two sides are screwed, the bolt sleeve and the top plate are pushed, and then the connection of the pipe clamp main body is completed. And screwing the radial bolt, and simultaneously enabling the axial sealing strip to complete axial sealing. And tightening the axial bolts and nuts of the fastening flanges at the two axial ends of the pipe clamp main body, wherein the fastening flanges are tightly connected with the pipe clamp main body, so that the circumferential sealing strips at the two sides of the main body are extruded to generate compression deformation and form extrusion with the pipeline, and the circumferential sealing action is finished. The metal wrap angle sealing strip protects the sealing strip from being cut to be damaged. The bottom fixing device is convenient for placing the pipe clamp, and after the operation is completed, the pressure test is performed through the pressure testing device, and the sealing performance is tested. Sacrificial anodes may increase the life of the pipe clamp. The dust ring can effectively prevent dust and silt from entering to influence the sealing of the pipe clamp.

The utility model discloses a beneficial effect of fluid pressure type machinery pipe strap under water:

1. the plurality of split blocks are designed, so that the production is easy, the storage and the transportation are convenient, and the cost is low.

2. The design of the fastening part is perfect, the pipe clamp is integrally and firmly combined, and the repairing quality is good.

3. The sealing component has reasonable design and good sealing effect, and ensures the perfection of pipeline repair.

4. Be equipped with the reasonable hydraulic pressure device that opens and shuts of structural design, the easy operation, it is efficient to can realize carrying out long-range and automatic control operation through hydraulic pressure pipeline. Manpower and material resources are saved, and the repairing efficiency is high;

5. the sealing strip with the metal wrap angle is adopted, so that the sealing strip is prevented from being cut off to influence the sealing effect and the service life;

6. the service life of the pipe clamp is greatly prolonged by adopting the sacrificial anode; the dust ring can prevent silt and dust from entering to affect sealing, and the design of the whole pipe clamp structure is thorough and perfect.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the present invention.

Fig. 2 is a schematic axial sectional structural view of the present invention.

Fig. 3 is a schematic view of the axial sectional three-dimensional structure of the present invention.

Fig. 4 is a schematic view of the axial sectional three-dimensional exploded structure of the present invention.

Fig. 5 is an enlarged structural view of a portion a in fig. 4.

Fig. 6 is a schematic view of the end face structure of the present invention.

Detailed Description

The following describes the hydraulic underwater mechanical pipe clamp of the present invention with reference to the accompanying drawings.

Example (b): referring to the attached drawings, the embodiment of the hydraulic type underwater mechanical pipe clamp is a mechanical pipe clamp for repairing a submarine oil pipeline, the outer diameter of the oil pipeline is 60cm, and the inner diameter of the pipe clamp is 60.2cm. The pipe clamp is provided with a pipe clamp main body, an opening and closing device, a fastening device and a sealing device, wherein all metal parts are made of tool steel, and used sealing elements are made of high-quality wear-resistant rubber. The pipe clamp main body is of a cylindrical structure with two open ends, the main body is composed of two semi-cylindrical semi-main bodies 8, two bolt sleeves 4 and a top plate 12 for connecting and fixing the semi-main bodies are fixedly arranged on the outer walls of the upper side and the lower side of the semi-main bodies, the sleeves are provided with a row of radial screw holes 11 with threads inside for 6 mounting bolts, and the top plate is arranged at the inner end of the sleeve and is provided with 6 radial bolts 9 matched with the screw holes of the sleeves; the left and right circumferential edges of the inner walls of the two half main bodies are respectively provided with a semicircular annular sealing strip 14, the sealing strips are provided with 3 parallel sealing strips, and two side edges of each sealing strip are respectively provided with a stainless steel sheet wrap angle 13 for increasing the strength of the sealing strip; the inner sides of the upper and lower axial edges of the two half main bodies are respectively provided with an axial sealing strip 15; the two half main bodies forming the pipe clamp main body have the same structure and are symmetrically arranged, and the two half main bodies share one upper radial bolt and one lower radial bolt for connecting and fixing the two half main bodies; be equipped with on the outer wall at the axial border of two halves main part the device that opens and shuts, this device that opens and shuts are two sets of fluid pressure type, establish respectively on the axial of two halves main part about both ends outer wall, every group is equipped with a pneumatic cylinder 1, the both ends of every pneumatic cylinder: cylinder body one end and piston outer end, the upper end of a landing leg 2 of swing joint respectively, the lower extreme of every landing leg is fixed respectively on the border on the outer wall that two half main parts correspond, and the connected mode is: when the piston of the hydraulic cylinder extends outwards, the two support legs are pushed away, and when the piston retracts inwards, the two support legs are retracted, so that the two half main bodies can be opened and closed from the upper parts; in addition, two axial ends of the pipe clamp main body are respectively provided with a jacking flange 6, the two jacking flanges are formed by two semicircular semi-flanges, 9 axial screw holes are arranged in the semicircular wall of each semi-flange, the number and the positions of the screw holes correspond to the axial screw holes arranged on the left end surface and the right end surface of the pipe clamp main body, and 9 fixing bolts and nuts 5 are arranged, and the fixing bolts and the nuts penetrate into and are fixed in the axial screw holes on the semi-flanges and the pipe clamp main body, so that the semi-flanges and the pipe clamp main body are fixed together; a semi-annular dustproof ring 17 is arranged on the inner wall of the semi-flange; the two half flanges at each end of the pipe clamp main body have the same structure and are symmetrically arranged; the outer walls of the upper joint and the lower joint of the two half flanges are respectively provided with a locking bolt 16, each locking bolt consists of a bolt seat with a hole arranged on the outer wall of the two half flanges and a bolt rod penetrating through the bolt seat, the two half flanges are locked and fixed into a complete tightening flange by the locking bolt, and the tightening flanges at the two ends of the pipe clamp main body have the same structure and are symmetrically arranged; the sleeve, the top plate, the radial bolt and the tightening flanges at the two ends of the main body form the fastening device; the annular sealing strip, the axial sealing strip and the dustproof ring form the sealing device.

In addition, a pressure test hole 10 and a pressure gauge for testing the pressure and the sealing effect in the pipe clamp main body are arranged on the side wall of the pipe clamp main body. And after the two half flanges are combined, the groove and the lug are matched with each other to ensure that the two half flanges are accurately combined and fixed. And a T-shaped bolt 18 is also arranged on the sleeve on the outer wall of the pipe clamp main body, vertically extends into the threaded hole on the sleeve, and the lower end of the T-shaped bolt is propped against the radial bolt to clamp or release the radial bolt and lock the radial bolt before the radial bolt is screwed and fixed so as to prevent the radial bolt from falling out. And 3 sacrificial anodes 19 for prolonging the service life of the pipe clamp are arranged on the outer wall of the pipe clamp main body. And a hoisting device 3 consisting of two hoisting rings is arranged on the outer wall of the pipe clamp main body. The bottom of the pipe clamp main body is provided with a fixed seat 7 for integrally fixing the pipe clamp.

This embodiment uses hydraulic pressure oil pipe to annotate liquid to hydraulic cylinder and presses oil, the polylith subassembly of pipe strap when the operation: the connection and fastening operations of the two half main body assemblies forming the main body and the four assemblies forming the two jacking flanges are all operated by an underwater robot, the whole pipeline repairing operation process is fast and efficient, and the repairing quality is superior.

It should be noted that on the basis of the basic structure of the present invention, various changes and modifications can be made, which are within the scope of protection of the present patent and the products thereof should be regarded as infringing products.

Claims (7)

1. The utility model provides a fluid pressure type is machinery pipe strap under water, is equipped with pipe strap main part, device, fastener, sealing device that open and shut, its characterized in that: the pipe clamp main body is of a cylindrical structure with openings at two ends, the main body is composed of two semi-cylindrical semi-main bodies (8) which are convenient to open and close, two bolt sleeves (4) and a top plate (12) which are used for connecting and fixing the semi-main bodies are fixedly arranged on the outer walls of the upper side and the lower side of the semi-main bodies, the sleeves are provided with a row of radial screw holes (11) which are provided with mounting bolts and are internally provided with threads, and the top plate is arranged at the inner end of the sleeve and is provided with radial bolts (9) matched with the screw holes of the sleeves; the left and right circumferential edges of the inner walls of the two half main bodies are respectively provided with a semicircular annular sealing strip (14), and the two side edges of the sealing strip are respectively provided with a metal wrap angle (13) for increasing the strength of the sealing strip; the inner sides of the upper and lower axial edges of the two half main bodies are respectively provided with an axial sealing strip (15); the two half main bodies forming the pipe clamp main body have the same structure and are symmetrically arranged, and the two half main bodies share a set of upper and lower radial bolts for connecting and fixing the two half main bodies; be equipped with on the outer wall at the axial of two halves main part border the device that opens and shuts, the device that should open and shut be two sets of fluid pressures, establish respectively on the axial of two halves main part about both ends outer wall, every group is equipped with a pneumatic cylinder (1), the both ends of every pneumatic cylinder: cylinder body one end and piston outer end, the upper end of landing leg (2) of swing joint respectively, the lower extreme of every landing leg is fixed respectively on the border on the outer wall that two half main parts correspond, and the connected mode is: when the piston of the hydraulic cylinder extends outwards, the two support legs are pushed away, and when the piston retracts inwards, the two support legs are retracted, so that the two half main bodies can be opened and closed from the upper parts; in addition, two axial ends of the pipe clamp main body are respectively provided with a jacking flange (6), the two jacking flanges are formed by two semicircular semi-flanges, the semicircular wall of each semi-flange is internally provided with a plurality of axial screw holes, the number and the positions of the screw holes correspond to the axial screw holes arranged on the left end surface and the right end surface of the pipe clamp main body, and the pipe clamp main body is provided with a corresponding number of axial fixing bolts and nuts (5), and the fixing bolts and the nuts penetrate into and are fixed in the axial screw holes on the semi-flanges and the pipe clamp main body, so that the semi-flanges and the pipe clamp main body are fixed together; a semi-annular dustproof ring (17) is arranged on the inner wall of the semi-flange; the two half flanges at each end of the pipe clamp main body have the same structure and are symmetrically arranged; the outer walls of the upper joint and the lower joint of the two half flanges are respectively provided with a locking bolt (16), the locking bolts are composed of bolt seats with holes arranged on the outer walls of the two half flanges and bolt rods penetrating through the bolt seats, the locking bolts lock and fix the two half flanges into a complete tightening flange, and the tightening flanges at the two ends of the pipe clamp main body have the same structure and are symmetrically arranged; the sleeve, the top plate, the radial bolt and the tightening flanges at the two ends of the main body form the fastening device; the annular sealing strip, the axial sealing strip and the dustproof ring form the sealing device.

2. The mechanical pipe clamp according to claim 1, wherein: and a pressure test hole (10) for testing the pressure and sealing effect in the pipe clamp main body and a pressure gauge are arranged on the side wall of the pipe clamp main body.

3. The mechanical pipe clamp according to claim 1, wherein: and after the two half flanges are combined, the groove and the lug are matched with each other to ensure that the two half flanges are accurately combined and fixed.

4. The mechanical pipe clamp according to claim 1, wherein: and a T-shaped bolt (18) is also arranged on the sleeve on the outer wall of the pipe clamp main body, vertically extends into the threaded hole on the sleeve, and the lower end of the T-shaped bolt is propped against the radial bolt to clamp or release the radial bolt and lock the radial bolt before the radial bolt is screwed and fixed so as to prevent the radial bolt from falling out.

5. The mechanical pipe clamp according to claim 1, wherein: and a sacrificial anode (19) for prolonging the service life of the pipe clamp is arranged on the outer wall of the pipe clamp main body.

6. The mechanical pipe clamp according to claim 1, wherein: and a hoisting device (3) consisting of hoisting rings is arranged on the outer wall of the pipe clamp main body.

7. The mechanical pipe clamp according to claim 1, wherein: the bottom of the pipe clamp main body is provided with a fixed seat (7) for integrally fixing the pipe clamp.

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