阅读说明：本技术 一种高强耐蚀海洋工程不锈钢厚壁管 (High-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe ) 是由 赵洪运 于 2021-10-08 设计创作，主要内容包括：本发明公开一种高强耐蚀海洋工程不锈钢厚壁管,包括不锈钢管体,不锈钢管体包括若干第一不锈钢管,第一不锈钢管端部对接有第二不锈钢管,第一不锈钢管、第二不锈钢管外侧固定连接有对接锁紧部,第一不锈钢管靠近内侧壁的边部设有第一斜面,第二不锈钢管靠近内侧壁的边部设有第三斜面,第一斜面、第三斜面相匹配,第一斜面、第三斜面之间设有密封层,第一不锈钢管靠近外侧壁的边部设有环形豁口,第二不锈钢管靠近外侧壁的边部设有第二斜面,环形豁口、第二斜面组成截面为梯形的凹槽,凹槽内嵌设有密封部,密封部靠近凹槽的一侧环形设有若干传感器。本发明使管路的安装密封性更好,同时具备泄漏检测的能力,为海洋工程的维护提供便利。(The invention discloses a high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe which comprises a stainless steel pipe body, wherein the stainless steel pipe body comprises a plurality of first stainless steel pipes, the end parts of the first stainless steel pipes are butted with second stainless steel pipes, the outer sides of the first stainless steel pipes and the second stainless steel pipes are fixedly connected with butted locking parts, the edge part of the first stainless steel pipe, which is close to the inner side wall, is provided with a first inclined surface, the edge part of the second stainless steel pipe, which is close to the inner side wall, is provided with a third inclined surface, the first inclined surface and the third inclined surface are matched, a sealing layer is arranged between the first inclined surface and the third inclined surface, the edge part of the first stainless steel pipe, which is close to the outer side wall, is provided with an annular notch, the edge part of the second stainless steel pipe, which is close to the outer side wall, is provided with a groove, the section of the annular embedded notch and the second inclined surface form a groove, the groove is provided with a sealing part, and one side of the sealing part, which is close to the groove, is provided with a plurality of the sensors in an annular mode. The invention has better installation sealing performance of the pipeline, has the capability of leakage detection and provides convenience for maintenance of ocean engineering.)

1. The high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe is characterized in that: including the stainless steel body, the stainless steel tubular body includes a plurality of first stainless steel pipes (1), first stainless steel pipe (1) tip is to having second stainless steel pipe (2), first stainless steel pipe (1), second stainless steel pipe (2) outside fixedly connected with butt joint locking portion, first stainless steel pipe (1) is close to the limit portion of inside wall and is equipped with first inclined plane (104), the limit portion that second stainless steel pipe (2) are close to the inside wall is equipped with third inclined plane (204), first inclined plane (104), third inclined plane (204) phase-match, be equipped with the sealing layer between first inclined plane (104), third inclined plane (204), first stainless steel pipe (1) is close to the limit portion of outside wall and is equipped with annular opening (103), second stainless steel pipe (2) are close to the limit portion of outside wall and are equipped with second inclined plane (203), annular opening (103), The cross section of the second inclined plane (203) is a trapezoidal groove, a sealing part is embedded in the groove, and a plurality of sensors (9) are annularly arranged on one side, close to the groove, of the sealing part.

2. The high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe according to claim 1, wherein: the butt joint locking part comprises a first flange (3) fixedly connected to the outer side of the first stainless steel pipe (1) and a second flange (4) fixedly connected to the outer side of the second stainless steel pipe (2), a plurality of through holes (301) are formed in the first flange (3) and the second flange (4) respectively, a screw rod (5) is arranged in the through hole (301) corresponding to the first flange (3) and the second flange (4) in a penetrating mode, and a nut (6) is connected to the end portion of the screw rod (5) in a threaded mode.

3. The high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe according to claim 1, wherein: the sealing layer comprises a first sealing layer (101) fixedly connected to the first inclined surface (104) and a third sealing layer (201) fixedly connected to the third inclined surface (204), the first sealing layer (101) is far away from the first inclined surface (104) side fixedly connected with a second sealing layer (102), and the third sealing layer (201) is far away from the third inclined surface (204) side fixedly connected with a fourth sealing layer (202).

4. The high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe according to claim 3, wherein: the first sealing layer (101) and the third sealing layer (201) are made of elastic materials, and the second sealing layer (102) and the fourth sealing layer (202) are made of adhesive materials.

5. The high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe according to claim 1, wherein: sealing portion is established including inlaying sealing ring (8) in the recess, sealing ring (8) cross sectional shape is the trapezium structure, sealing ring (8) with the recess phase-match, sealing ring (8) outside cover has annular clamp (7), and is a plurality of sensor (9) annular distributes on sealing ring (8) inside wall.

6. The high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe according to claim 5, wherein: annular groove (701) have been seted up to annular clamp (7) inside wall, annular clamp (7) include two semi-rings, semi-ring both ends are fixedly connected with convex shoulder (702) respectively, and are adjacent convex shoulder (702) pass through screw (703) fixed connection, annular groove (701) width with sealing ring (8) width phase-match.

7. The high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe according to claim 1, wherein: the first stainless steel pipe (1) and the second stainless steel pipe (2) are high-strength corrosion-resistant ocean engineering stainless steel materials, and the high-strength corrosion-resistant ocean engineering stainless steel materials comprise the following element components: mn, Si, Cr, Ni, Mo, N, V, Y, La, C, S, P, Fe and inevitable impurities.

8. The high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe according to claim 1, wherein: the thicknesses of the first stainless steel pipe (1) and the second stainless steel pipe (2) are the same.

Technical Field

The invention relates to the technical field of pipeline connection, in particular to a high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe.

Background

Ocean engineering aims at developing, utilizing, protecting and recovering ocean resources, and the engineering main body is positioned in newly-built, reconstructed and expanded engineering from a coastline to one side of the sea, pipelines are commonly used as main transportation tools in ocean engineering, however, the ocean engineering pipelines have the problems of leakage and the like after being laid, leakage points are not easy to find, and great inconvenience is brought to the development and maintenance of the ocean engineering.

Disclosure of Invention

The invention aims to provide a high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe, which aims to solve the problems.

In order to achieve the purpose, the invention provides the following scheme:

a high-strength corrosion-resistant ocean engineering stainless steel thick-wall pipe comprises a stainless steel pipe body, wherein the stainless steel pipe body comprises a plurality of first stainless steel pipes, the end part of the first stainless steel pipe is butted with a second stainless steel pipe, the outer sides of the first stainless steel pipe and the second stainless steel pipe are fixedly connected with a butting locking part, the edge part of the first stainless steel pipe close to the inner side wall is provided with a first inclined plane, the edge part of the second stainless steel pipe close to the inner side wall is provided with a third inclined plane, the first inclined plane is matched with the third inclined plane, a sealing layer is arranged between the first inclined plane and the third inclined plane, the edge part of the first stainless steel pipe close to the outer side wall is provided with an annular gap, the edge part of the second stainless steel pipe close to the outer side wall is provided with a second inclined plane, the annular opening and the second inclined plane form a groove with a trapezoidal cross section, a sealing part is embedded in the groove, and a plurality of sensors are annularly arranged on one side, close to the groove, of the sealing part.

Preferably, the butt joint locking part comprises a first flange fixedly connected to the outer side of the first stainless steel pipe and a second flange fixedly connected to the outer side of the second stainless steel pipe, a plurality of through holes are formed in the first flange and the second flange respectively, a screw rod is arranged in the through hole corresponding to the first flange and the second flange in a penetrating mode, and the end portion of the screw rod is connected with a nut in a threaded mode.

Preferably, the sealing layer includes fixed connection first sealing layer, fixed connection on the first inclined plane on the third inclined plane, first sealing layer is kept away from first inclined plane one side fixedly connected with second sealing layer, the third sealing layer is kept away from third inclined plane one side fixedly connected with fourth sealing layer.

Preferably, the first sealing layer and the third sealing layer are made of elastic materials, and the second sealing layer and the fourth sealing layer are made of adhesive materials.

Preferably, the sealing portion is established including inlaying sealing ring in the recess, sealing ring cross sectional shape is trapezium structure, the sealing ring with the recess phase-match, sealing ring outside cover has annular clamp, and is a plurality of the sensor ring shape distributes on the sealing ring inside wall.

Preferably, the annular clamp is provided with an annular groove on the inner side wall, the annular clamp comprises two half rings, two ends of each half ring are fixedly connected with a convex shoulder respectively, the adjacent convex shoulders are fixedly connected through screws, and the width of the annular groove is matched with that of the sealing ring.

Preferably, the first stainless steel pipe and the second stainless steel pipe are made of high-strength corrosion-resistant ocean engineering stainless steel materials, and the high-strength corrosion-resistant ocean engineering stainless steel materials comprise the following elements: mn, Si, Cr, Ni, Mo, N, V, Y, La, C, S, P, Fe and inevitable impurities.

Preferably, the first stainless steel tube and the second stainless steel tube have the same thickness.

The invention has the following technical effects:

the invention arranges the first inclined plane and the third inclined plane at the butt joint of the first stainless steel pipe and the second stainless steel pipe, and presses the first stainless steel pipe and the second stainless steel pipe together through the butt joint locking part, thereby the first inclined plane and the third inclined plane are pressed mutually, and the first inclined plane can also provide an outward force to support the third inclined plane, so that the sealing layer between the first inclined plane and the third inclined plane is pressed, the annular gap and the second inclined plane form a groove with a trapezoidal section, the sealing part is embedded in the groove and can be pressed towards the groove when in sealing, and the sealing part can also press the groove at the time because the groove is in a trapezoidal structure, thereby having better sealing effect, when leakage occurs between the first stainless steel pipe and the second stainless steel pipe, the sensor detects the leaked liquid and sends a signal to the ground monitoring station, and the leakage point is conveniently maintained.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic view of a first flange structure;

FIG. 4 is a schematic view of an annular clamp configuration;

FIG. 5 is a cross-sectional view of the annular clip;

FIG. 6 is a schematic view of the structure of a first stainless steel tube;

FIG. 7 is a schematic view of a second stainless steel tube;

FIG. 8 is a schematic view of a ring clamp according to a second embodiment of the present invention;

fig. 9 is a schematic cross-sectional view of a wedge ring according to the second embodiment.

Wherein, 1, a first stainless steel pipe; 101. a first sealing layer; 102. a second sealing layer; 103. an annular gap; 104. a first inclined plane; 2. a second stainless steel tube; 201. a third sealing layer; 202. a fourth sealing layer; 203. a second inclined plane; 204. a third inclined plane; 3. a first flange; 301. a via hole; 4. a second flange; 5. a screw; 6. a nut; 7. an annular hoop; 701. an annular groove; 702. a shoulder is formed; 703. a screw; 704. a snap ring; 705. oblique threads; 706. locking a ring; 707. a wedge ring; 708. opening the gap; 8. a seal ring; 9. a sensor.

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.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The first embodiment is as follows:

referring to fig. 1-7, this embodiment provides a high-strength corrosion-resistant thick-walled tube made of ocean engineering stainless steel, which includes a stainless steel tube body, the stainless steel tube body includes a plurality of first stainless steel tubes 1, the end of the first stainless steel tube 1 is butted with a second stainless steel tube 2, the outer sides of the first stainless steel tube 1 and the second stainless steel tube 2 are fixedly connected with a butt-joint locking portion, the edge portion of the first stainless steel tube 1 near the inner side wall is provided with a first inclined surface 104, the edge portion of the second stainless steel tube 2 near the inner side wall is provided with a third inclined surface 204, the first inclined surface 104 is matched with the third inclined surface 204, a sealing layer is arranged between the first inclined surface 104 and the third inclined surface 204, the edge portion of the first stainless steel tube 1 near the outer side wall is provided with an annular notch 103, the edge portion of the second stainless steel tube 2 near the outer side wall is provided with a second inclined surface 203, the annular notch 103 and the second inclined surface 203 form a groove with a trapezoidal cross section, and a sealing portion is embedded in the groove, and one side of the sealing part close to the groove is annularly provided with a plurality of sensors 9.

The invention sets the first inclined plane 104 and the third inclined plane 204 at the butt joint of the first stainless steel pipe 1 and the second stainless steel pipe 2, and presses the first stainless steel pipe 1 and the second stainless steel pipe 2 together through the butt joint locking part, thereby the first inclined plane 104 and the third inclined plane 204 are pressed mutually, simultaneously the first inclined plane 104 can provide an outward force to support the third inclined plane 204, so that the sealing layer between the first inclined plane 104 and the third inclined plane 204 is pressed, the annular gap 103 and the second inclined plane 203 form a groove with a trapezoidal section, the sealing part is embedded in the groove, the sealing part can be pressed towards the groove direction during sealing, because the groove is in a trapezoidal structure, the sealing part can also press the groove at the moment, a better sealing effect is achieved, when leakage occurs between the first stainless steel pipe 1 and the second stainless steel pipe 2, the sensor 9 detects the leaked liquid and sends a signal to a ground monitoring station, the leakage point is conveniently maintained.

Further optimize the scheme, butt joint locking portion includes that fixed connection has seted up a plurality of via holes 301 at the first flange 3 in the 1 outside of first nonrust steel pipe, the second flange 4 in the 2 outsides of second nonrust steel pipe respectively on first flange 3, the second flange 4, wears to be equipped with screw rod 5 in the corresponding via hole 301 of first flange 3, second flange 4, and screw rod 5 tip threaded connection has nut 6. The first flange 3 and the second flange 4 are locked by the screw 5, and the first inclined surface 104 and the third inclined surface 204 which are butted with the first stainless steel pipe 1 and the second stainless steel pipe 2 are gradually pressed along with the rotation of the nut 6 on the screw 5, so that the sealing layer between the first inclined surface 104 and the third inclined surface is pressed, and a good sealing effect is achieved.

In a further optimized scheme, the sealing layers comprise a first sealing layer 101 fixedly connected to the first inclined surface 104 and a third sealing layer 201 fixedly connected to the third inclined surface 204, the side, away from the first inclined surface 104, of the first sealing layer 101 is fixedly connected with a second sealing layer 102, and the side, away from the third inclined surface 204, of the third sealing layer 201 is fixedly connected with a fourth sealing layer 202.

In a further preferred embodiment, the first sealing layer 101 and the third sealing layer 201 are made of elastic materials, and the second sealing layer 102 and the fourth sealing layer 202 are made of adhesive materials.

The first sealing layer 101 and the third sealing layer 201 can be made of materials with elastic sealing effect such as rubber, the second sealing layer 102 and the fourth sealing layer 202 can be made of materials with certain viscosity effect such as asphalt, the first sealing layer 101 and the third sealing layer 201 are compressed by pressing the first stainless steel pipe 1 and the second stainless steel pipe 2, the second sealing layer 102 and the fourth sealing layer 202 between the first sealing layer and the second sealing layer are adhered together, and the sealing performance of the butted pipelines is improved.

Further optimize the scheme, the sealing portion is including inlaying the sealing ring 8 of establishing in the recess, and 8 cross sectional shapes of sealing ring are trapezium structure, and sealing ring 8 and recess phase-match have annular clamp 7, the 8 outside covers of sealing ring, and the 9 annular distributions of a plurality of sensors are on 8 inside walls of sealing ring.

Sealing ring 8 in the recess, when first stainless steel pipe 1, when 2 butt joints of second stainless steel pipe appear leaking, sealing ring 8 can be for first stainless steel pipe 1, second stainless steel pipe 2 provides a secondary seal's effect, pressure sensor or humidity transducer can be chooseed for use to sensor 9, when using pressure sensor when selecting, if first stainless steel pipe 1, leak between the stainless steel pipe 2 of second, liquid can extrude sensor 9, pressure signal transmission to the ground monitoring station that sensor 9 will detect, when using humidity transducer when the selection, humidity signal transmission to ground monitoring station that sensor 9 will detect when the pipeline appears leaking, thereby judge its leakage position that corresponds, conveniently maintain the pipeline.

According to the further optimization scheme, the annular groove 701 is formed in the inner side wall of the annular hoop 7, the annular hoop 7 comprises two half rings, the two ends of each half ring are fixedly connected with convex shoulders 702 respectively, the adjacent convex shoulders 702 are fixedly connected through screws 703, and the width of the annular groove 701 is matched with the width of the sealing ring 8.

The annular clamp 7 serves to press the sealing ring 8 into the groove.

According to the further optimization scheme, the first stainless steel pipe 1 and the second stainless steel pipe 2 are made of high-strength corrosion-resistant ocean engineering stainless steel materials, and the high-strength corrosion-resistant ocean engineering stainless steel comprises the following element components: 14.0 to 19.0% of Mn and Si

Less than or equal to 0.45 percent, 16.0 to 21.0 percent of Cr, 3.0 to 4.0 percent of Ni, 2.5 to 3.5 percent of Mo, 0.5 to 1.0 percent of N, 0.1 to 0.3 percent of V, 0.1 to 0.2 percent of Y, 0.1 to 0.4 percent of La, less than or equal to 0.04 percent of C, less than or equal to 0.01 percent of S, less than or equal to 0.02 percent of P, and the balance of Fe and inevitable impurities.

Further optimizing the scheme, the first stainless steel pipe 1 and the second stainless steel pipe 2 are the same in thickness.

Example two:

referring to fig. 8-9, the stainless steel thick-walled pipe of the present embodiment differs from the first embodiment only in that the annular clamp 7 includes a clamping ring 704, the inner wall of the clamping ring 704 is provided with an inclined thread 705, the inclined thread 705 is in threaded fit with a wedge-shaped ring 707, one end of the wedge-shaped ring 707, which is far away from the clamping ring 704, is fixedly connected with a locking ring 706, the side wall of the wedge-shaped ring 707 is provided with a plurality of notches 708 along the axial direction, and the inner wall of the wedge-shaped ring 707 is in contact with the outer wall of the sealing ring 8.

When the sealing ring 8 is fixed, the wedge-shaped ring 707 is gradually selected into the inclined thread 705, and the wedge-shaped ring 707 is provided with the notch 708, so that the wedge-shaped ring 707 extrudes the sealing ring 8 along with the rotation of the wedge-shaped ring 707, and the sealing ring 8 is tightly matched in the groove.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.