CN114151632A - Underwater pipeline connecting device and pipeline connecting method - Google Patents
Underwater pipeline connecting device and pipeline connecting method Download PDFInfo
- Publication number
- CN114151632A CN114151632A CN202210016419.0A CN202210016419A CN114151632A CN 114151632 A CN114151632 A CN 114151632A CN 202210016419 A CN202210016419 A CN 202210016419A CN 114151632 A CN114151632 A CN 114151632A
- Authority
- CN
- China
- Prior art keywords
- flange
- left flange
- compression
- ring
- compressing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000006835 compression Effects 0.000 claims abstract description 49
- 238000007906 compression Methods 0.000 claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 10
- 229920001875 Ebonite Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 15
- 238000009991 scouring Methods 0.000 abstract description 4
- 239000013535 sea water Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention discloses an underwater pipeline connecting device and a pipeline connecting method, and the underwater pipeline connecting device comprises a left flange, a right flange, a traction bolt, a fixing bolt and a compression ring, wherein the left flange and the right flange are oppositely arranged, a traction mechanism is arranged between the left flange and the right flange, the traction mechanism is provided with a plurality of clamping mechanisms, and the left flange is also provided with a compression waterproof mechanism; aligning the left flange and the right flange and the threaded holes and through holes on the left flange and the right flange; connecting the left flange and the right flange; clamping the fixing bolt; and (4) compressing the compression ring to enable the left flange and the right flange to form a sealing seal. The invention is provided with the traction mechanism which can better resist the pressure of the seabed and the buoyancy of the seabed; the pipeline and the threaded hole are simultaneously positioned, and secondary positioning is avoided; the pressing waterproof mechanism is arranged, so that the alignment between the flanges is not influenced; the clamping mechanism is arranged and further clamps the fixing bolt, so that the fixing bolt is prevented from loosening due to seawater scouring.
Description
Technical Field
The invention relates to the field of submarine pipeline connection, in particular to an underwater pipeline connecting device and a pipeline connecting method.
Background
The submarine pipeline is a pipeline for continuously conveying a large amount of oil (gas) on the seabed through a closed pipeline, is a main component of an offshore oil (gas) field development and production system, and is also the most rapid, safest, economical and reliable offshore oil and gas transportation mode at present. Submarine pipeline laying is difficult, especially when pipelines are connected, alignment between pipelines is difficult due to submarine pressure and buoyancy of water, and the position of a threaded hole needs to be further calibrated after alignment. The connection is laborious; in addition, the sealing requirement of the submarine pipeline is high, and the existing flange with a sealing boss has good sealing effect, but influences the butt joint of the pipelines in the use process and is inconvenient to use; due to seawater scouring, the butt bolts are easy to loosen after a certain time, causing leakage.
Disclosure of Invention
The present invention is directed to an underwater pipeline connection device and a pipeline connection method, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an underwater pipeline connecting device comprises a left flange and a right flange, wherein the left flange and the right flange are oppositely arranged, and the underwater pipeline connecting device also comprises a traction mechanism, a clamping mechanism and a compression waterproof mechanism;
the traction mechanism comprises a plurality of traction bolts, a plurality of fixing bolts, universal joints and a steel wire rope, wherein the fixing bolts penetrate through holes and are in sliding connection with the through holes;
the clamping mechanism is arranged on the left flange and comprises a clamping rod, a thread boss and a rotating cap, the clamping rod is inserted into the clamping chute, one end of the clamping rod enters the threaded hole to clamp the fixing bolt, the other end of the clamping rod is rotatably connected with the rotating cap, the rotating cap is in threaded connection with the thread boss, the thread boss is fixed on the left flange, and the clamping chute is perpendicular to the threaded hole;
the compressing waterproof mechanism comprises a compressing ring, the compressing ring slides in a compressing chute, the compressing chute is arranged on a left flange, two half holes are symmetrically arranged on the left flange, a thread is arranged on one of the two half holes, two half holes are arranged on the compressing ring at positions corresponding to the two half holes, a thread is arranged on the half hole beside the second half hole without the thread, a compressing screw is connected with the hole formed by the first half hole and the second half hole in a threaded manner, a compressing groove for the compressing ring to insert is arranged on the right flange at a position corresponding to the compressing ring, the outer end face of the compressing ring close to the compressing groove is a conical face, inclined faces matched with the conical face of the compressing ring are arranged on the compressing chute and the compressing groove, and the compressing ring is extruded and inserted into the chute compressing and the compressing groove.
Preferably, one end, entering the threaded hole, of the clamping rod is a concave surface, and a non-slip mat is arranged on the concave surface.
Preferably, a sealing ring is arranged on the left flange so as to form sealing after being butted with the right flange.
Preferably, one end of each of the left flange and the right flange, which is far away from the sealing ring, is provided with a plurality of axial grooves so as to form sealing with the pipeline, and one surface of each of the left flange and the right flange, which is close to the sealing ring, is provided with a plurality of radial grooves so as to form radial sealing with the left flange and the right flange.
Preferably, the compression ring is made of hard rubber material for further sealing.
Preferably, a plurality of aligning holes used for matching the left flange and the right flange and butting the machine tool are further formed in the left flange and the right flange.
A pipeline connecting method of an underwater pipeline connecting device comprises the following steps:
aligning a left flange, a right flange, and threaded holes and through holes on the left flange and the right flange, clamping and aligning the left flange and the right flange by using a machine tool, and screwing out a traction bolt in the left flange to drive a universal joint to pull a steel wire rope to drive the head of a fixing bolt to enter the threaded hole;
step two, connecting a left flange and a right flange; screwing a fixing bolt into the threaded hole, cutting off the fixing bolt along the connection position of the fixing bolt and the universal joint by using an underwater cutting tool after the fixing bolt is screwed, and removing the universal joint, the steel wire rope and the traction bolt;
step three, clamping the fixing bolt; the rotating cap is rotated, the rotating cap moves inwards through the threads on the thread boss, and the rotating cap pushes the clamping rod to move, so that the clamping rod clamps the fixing bolt from the vertical direction;
compressing the compression ring to seal the left flange and the right flange; firstly, a compression screw connected with a second half-hole thread is rotated, the compression screw pushes a compression ring to enter a compression groove of a right flange, after the compression screw rotates to the bottom, the compression screw connected with a first half-hole thread is rotated, the compression screw further pushes the compression ring, and a sealing gasket on the compression ring is tightly attached to the compression groove to complete sealing.
Compared with the prior art, the invention has the beneficial effects that:
the invention is provided with the traction mechanism, the universal joint and the steel wire rope are arranged in the traction mechanism, and the pressure of the seabed and the buoyancy of the seabed can be better resisted through the flexible connection;
the traction bolt is used for driving the fixing bolt, so that the pipeline and the threaded hole are positioned simultaneously, the threaded hole is prevented from being positioned for the second time after the pipeline is positioned, and the operation is convenient;
the left flange is provided with the pressing waterproof mechanism, the pressing ring is connected with the left flange in a sliding mode, and before butt joint is completed, the pressing ring is located inside the left flange, so that alignment between the flanges is not affected, troubles in the alignment process are avoided, the pressing ring is pushed twice after connection is completed, and the sealing effect of the pressing ring is ensured;
the invention is provided with the clamping mechanism, and the clamping mechanism further clamps the fixing bolt, so that the fixing bolt is prevented from being loosened due to seawater scouring.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a schematic view of the main cross-section structure of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic view of the construction of the clamping bar of the present invention;
fig. 5 is a partial enlarged view at B of fig. 2;
FIG. 6 is a schematic right-side view of the left flange of the present invention;
fig. 7 is a schematic cross-sectional structure view of the clamp ring of the present invention.
In the figure: 1. the left flange, 2, right flange, 3, alignment hole, 4, axial grooving, 5, draw bolt, 6, fixing bolt, 7, clamp ring, 8, hold-down groove, 9, housing screw, 10, sealing washer, 11, universal joint, 12, wire rope, 13, screw hole, 14, through-hole, 15, clamping rod, 16, screw boss, 17, swivel cap, 18, radial grooving, 19, compress tightly the spout, 20, half hole No. one, 21, half hole No. two, 22, press from both sides tight spout.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: an underwater pipeline connecting device comprises a left flange 1 and a right flange 2, wherein the left flange 1 and the right flange 2 are arranged oppositely, a sealing ring 10 is arranged on the left flange 1 so as to form sealing after being butted with the right flange 2, the underwater pipeline connecting device also comprises a traction mechanism, a clamping mechanism and a compression waterproof mechanism, the traction mechanism is arranged between the left flange 1 and the right flange 2, the traction mechanism is provided with a plurality of clamping mechanisms, the left flange 1 is also provided with the compression waterproof mechanism, one ends of the left flange 1 and the right flange 2, which are far away from the sealing ring 10, are provided with a plurality of axial cutting grooves 4 so as to form sealing with a pipeline, one surface of the left flange 1 and the right flange 2, which is close to the sealing ring 10, is provided with a plurality of radial cutting grooves 18 so as to form radial sealing with the left flange 1 and the right flange 2, and the left flange 1 and the right flange 2 are also provided with a plurality of positioning holes 3 for matching with butting machines;
the traction mechanism comprises a traction bolt 5, a fixing bolt 6, universal joints 11 and a steel wire rope 12, wherein the fixing bolt 6 penetrates through a through hole 14 and is in sliding connection with the through hole 14, the number of the through holes 14 is preferably 16, the through holes are uniformly formed in the right flange 2, one end, close to the left flange 1, of the fixing bolt 6 is connected with the traction bolt 5 through the steel wire rope 12, two ends of the steel wire rope 12 are fixedly connected with one end of one universal joint 11 respectively, pressure of the seabed and buoyancy of the seabed can be well resisted through the flexible connection, the other end of the universal joint 11 is fixedly connected with the traction bolt 5 and the fixing bolt 6 respectively, the traction bolt 5 is in threaded connection with a threaded hole 13, and the threaded hole 13 is formed in the left flange 1; the traction bolt 5 is utilized to drive the fixing bolt 6, so that the pipeline and the threaded hole 13 are positioned simultaneously, the secondary positioning of the threaded hole 13 after the pipeline is positioned is avoided, and the operation is convenient;
the clamping mechanism is arranged on the left flange 1 and comprises a clamping rod 15, a thread boss 16 and a rotating cap 17, the clamping rod 15 is inserted into a clamping sliding groove 22, one end of the clamping rod 15 enters the threaded hole 13 to clamp the fixing bolt 6, the other end of the clamping rod 15 is rotatably connected with the rotating cap 17, one end of the clamping rod 15 entering the threaded hole 13 is a concave surface, an anti-skid pad is arranged on the concave surface, the anti-skid pad is close to the fixing bolt 6 to prevent the end part of the clamping rod 15 from damaging the thread on the fixing bolt 6, the rotating cap 17 is in threaded connection with the thread boss 16, the thread boss 16 is fixed on the left flange 1, and the clamping sliding groove 22 is perpendicular to the threaded hole 13; so as to further clamp the fixing bolt 6 and avoid the fixing bolt 6 from loosening due to seawater scouring.
The compressing waterproof mechanism comprises a compressing ring 7, the compressing ring 7 slides in a compressing chute 19, the compressing chute 19 is arranged on a left flange 1, two second half holes 21 are symmetrically arranged on the left flange 1, one second half hole 21 is provided with threads, two first half holes 20 are arranged on the compressing ring 7 corresponding to the second half hole 21, the first half hole 20 beside the second half hole 21 without threads is provided with threads, a compressing screw 9 is connected with the first half hole 20 and the second half hole 21 in a threaded manner, a compressing groove 8 for inserting the compressing ring 7 is arranged on the right flange 2 corresponding to the compressing ring 7, the compressing ring 7 is positioned in the left flange 1 before butt joint is completed, alignment between the flanges is not influenced, so that trouble in the alignment process is avoided, the compressing ring 7 is pushed twice after the connection is completed, and the sealing effect of the compressing ring is ensured, the outer end face of the pressing ring 7 close to the pressing groove 8 is a conical face, inclined faces matched with the conical face of the pressing ring 7 are arranged on the pressing sliding groove 19 and the pressing groove 8, the pressing ring 7 is extruded and inserted into the pressing sliding groove 19 and the pressing groove 8, and the pressing ring 7 is made of hard rubber materials so as to be better sealed.
A pipeline connecting method of an underwater pipeline connecting device comprises the following steps:
aligning a left flange 1, a right flange 2, and a threaded hole 13 and a through hole 14 on the left flange and the right flange, aligning the left flange 1 and the right flange 2 by using a machine clamping and aligning hole 3, screwing out a traction bolt 5 in the left flange 1, and pulling a universal joint 11 to drive a steel wire rope 12 to drive the head of a fixing bolt 6 to enter the threaded hole 13;
step two, connecting a left flange 1 and a right flange 2; screwing the fixing bolt 6 into the threaded hole 13, cutting off the fixing bolt 6 along the connection position of the fixing bolt 6 and the universal joint 11 by using a underwater cutting tool after screwing the fixing bolt 6, and removing the universal joint 11, the steel wire rope 12 and the traction bolt 5;
step three, clamping the fixing bolt 6; the rotating cap 17 is rotated, the rotating cap 17 moves inwards through the threads on the thread boss 16, and the rotating cap 17 pushes the clamping rod 15 to move, so that the clamping rod 15 clamps the fixing bolt 6 from the vertical direction;
step four, the compression ring 7 is compressed to enable the left flange 1 and the right flange 2 to form sealing; firstly, the compression screw 9 in threaded connection with the second half hole 21 is rotated, the compression screw 9 pushes the compression ring 7 to enter the compression groove 8 of the right flange 2, after the compression screw 9 rotates to the bottom, the compression screw 9 in threaded connection with the first half hole 20 is rotated, the compression screw 9 further pushes the compression ring 7, and the sealing gasket on the compression ring 7 is tightly attached to the compression groove 8, so that sealing is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an underwater pipeline connecting device, includes left flange (1), right flange (2), left flange (1) and right flange (2) set up its characterized in that relatively: the waterproof structure is characterized by further comprising a traction mechanism, clamping mechanisms and a compression waterproof mechanism, wherein the traction mechanism is arranged between the left flange (1) and the right flange (2), the traction mechanism is provided with a plurality of clamping mechanisms, and the compression waterproof mechanism is further arranged on the left flange (1);
the traction mechanism comprises a traction bolt (5), a plurality of fixing bolts (6), universal joints (11) and a steel wire rope (12), wherein the fixing bolts (6) penetrate through holes (14) and are in sliding connection with the through holes (14), the through holes (14) are uniformly formed in the right flange (2), one end, close to the left flange (1), of each fixing bolt (6) is connected with the traction bolt (5) through the steel wire rope (12), two ends of the steel wire rope (12) are fixedly connected with one end of one universal joint (11), the other end of each universal joint (11) is fixedly connected with the traction bolt (5) and the corresponding fixing bolt (6), the traction bolt (5) is in threaded connection with a threaded hole (13), and the threaded hole (13) is formed in the left flange (1);
the clamping mechanism is arranged on the left flange (1) and comprises a clamping rod (15), a threaded boss (16) and a rotating cap (17), the clamping rod (15) is inserted into a clamping sliding groove (22), one end of the clamping rod (15) enters a threaded hole (13) to clamp a fixing bolt (6), the other end of the clamping rod is rotatably connected with the rotating cap (17), the rotating cap (17) is in threaded connection with the threaded boss (16), the threaded boss (16) is fixed on the left flange (1), and the clamping sliding groove (22) is perpendicular to the threaded hole (13);
the compressing waterproof mechanism comprises a compressing ring (7), the compressing ring (7) slides in a compressing chute (19), the compressing chute (19) is arranged on a left flange (1), two second half holes (21) are symmetrically arranged on the left flange (1), a thread is arranged on one second half hole (21), two first half holes (20) are arranged on the compressing ring (7) corresponding to the second half holes (21), a thread is arranged on the first half hole (20) beside the second half hole (21) without the thread, a compressing screw (9) is in threaded connection in a hole formed by the first half hole (20) and the second half hole (21), a compressing groove (8) for the compressing ring (7) to be inserted is arranged on the right flange (2) corresponding to the compressing ring (7), and the outer end face of the compressing ring (7) close to the compressing groove (8) is a conical surface, inclined surfaces matched with the conical surfaces of the compression ring (7) are arranged on the compression sliding groove (19) and the compression groove (8), and the compression ring (7) is extruded and inserted into the compression sliding groove (19) and the compression groove (8).
2. A subsea pipe connection as claimed in claim 1, wherein: one end, entering the threaded hole (13), of the clamping rod (15) is a concave surface, and an anti-skid pad is arranged on the concave surface.
3. A subsea pipe connection as claimed in claim 1, wherein: and a sealing ring (10) is arranged on the left flange (1) so as to form sealing after being butted with the right flange (2).
4. A subsea pipe connection as claimed in claim 3, wherein: one ends, far away from the sealing ring (10), of the left flange (1) and the right flange (2) are provided with a plurality of axial cutting grooves (4) so as to form sealing with a pipeline, and one face, close to the sealing ring (10), of the left flange (1) and the right flange (2) is provided with a plurality of radial cutting grooves (18) so as to form radial sealing.
5. A subsea pipe connection as claimed in claim 1, wherein: the compression ring (7) is made of hard rubber materials so as to further seal.
6. A subsea pipe connection as claimed in claim 1, wherein: and a plurality of aligning holes (3) used for matching the left flange (1) and the right flange (2) to butt the machine tool are also arranged on the left flange (1) and the right flange (2).
7. A pipe connecting method of an underwater pipe connecting device according to any one of claims 1 to 6, characterized by comprising the steps of:
aligning a left flange (1), a right flange (2) and threaded holes (13) and through holes (14) on the left flange and the right flange, aligning the left flange (1) and the right flange (2) by clamping a positioning hole (3) with a machine tool, screwing out a traction bolt (5) in the left flange (1), pulling a universal joint (11) to drive a steel wire rope (12) to drive the head of a fixing bolt (6) to enter the threaded hole (13);
step two, connecting a left flange (1) and a right flange (2); screwing the fixing bolt (6) into the threaded hole (13), cutting off the fixing bolt (6) along the connection position of the fixing bolt (6) and the universal joint (11) by using a underwater cutting tool after screwing, and removing the universal joint (11), the steel wire rope (12) and the traction bolt (5);
step three, clamping the fixing bolt (6); the rotating cap (17) is rotated, the rotating cap (17) moves inwards through the threads on the thread boss (16), and the rotating cap (17) pushes the clamping rod (15) to move, so that the clamping rod (15) clamps the fixing bolt (6) from the vertical direction;
fourthly, the compression ring (7) is compressed to enable the left flange (1) and the right flange (2) to form sealing; firstly, a compression screw (9) in threaded connection with a second half hole (21) is rotated, the compression screw (9) pushes a compression ring (7) to enter a compression groove (8) of a right flange (2), after the compression screw (9) rotates to the bottom, the compression screw (9) in threaded connection with a first half hole (20) is rotated, the compression screw (9) further pushes the compression ring (7), and a sealing gasket on the compression ring (7) is tightly attached to the compression groove (8) to complete sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210016419.0A CN114151632A (en) | 2022-01-07 | 2022-01-07 | Underwater pipeline connecting device and pipeline connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210016419.0A CN114151632A (en) | 2022-01-07 | 2022-01-07 | Underwater pipeline connecting device and pipeline connecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114151632A true CN114151632A (en) | 2022-03-08 |
Family
ID=80450019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210016419.0A Pending CN114151632A (en) | 2022-01-07 | 2022-01-07 | Underwater pipeline connecting device and pipeline connecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114151632A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325296A (en) * | 2022-07-05 | 2022-11-11 | 安徽省天然气开发股份有限公司 | Natural gas line protective equipment |
-
2022
- 2022-01-07 CN CN202210016419.0A patent/CN114151632A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325296A (en) * | 2022-07-05 | 2022-11-11 | 安徽省天然气开发股份有限公司 | Natural gas line protective equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2787051A (en) | Method of installing fittings upon submerged pipe | |
| CN216666805U (en) | Underwater pipeline connecting device | |
| KR100976588B1 (en) | Pipe connector | |
| CN114151632A (en) | Underwater pipeline connecting device and pipeline connecting method | |
| CN103363212A (en) | Clamping type ocean underwater pipeline connector | |
| CN210779936U (en) | Power cable protection pipe convenient to connect | |
| CN109595408A (en) | Screw-in pipe jointer | |
| CN116792581A (en) | Underwater connector system and use method thereof | |
| CN215891492U (en) | Connecting device for natural gas conveying pipeline | |
| CN210662338U (en) | Pressure test device of socket joint formula municipal administration water supply pipe bellmouth | |
| CN213040075U (en) | Temporary plugging device for sea pipe | |
| CN211010285U (en) | Oil pipe convenient to butt joint | |
| CN209658498U (en) | A kind of mechanical watertight connector | |
| CN210372452U (en) | Sealing device for pipeline joint | |
| CN210860190U (en) | Special-shaped internal thread copper-plated steel pipe | |
| CN113517674A (en) | Sealing device for underwater oil-filled umbilical cable box, umbilical cable box and sealing method thereof | |
| KR101033837B1 (en) | Pipe fittings for underground transmission lines | |
| CN111623927A (en) | Double-wall pipe outer pipe pressing sealing auxiliary device | |
| CN116624681B (en) | Hydraulic rubber tube anti-drop device for hydraulic equipment | |
| CN221097795U (en) | Connecting mechanism of double sealing structure | |
| CN218408962U (en) | High-pressure drilling rubber hose water hose for well drilling | |
| CN217502961U (en) | Precise connecting flange | |
| CN219739846U (en) | Ship module pipeline mounting structure | |
| CN215000009U (en) | Stainless steel fastening device for pipeline butt joint | |
| CN209925806U (en) | Pipe connecting pipe structure for petroleum engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |