CT (Computed Tomography) double-ferrule adapter based on hydrogen compressor pipeline

Abstract

The utility model relates to the technical field of crossover couplings, in particular to a CT (Computed Tomography) double-ferrule crossover coupling based on a hydrogen compressor pipeline, which comprises a seamless steel pipe, a two-way coupling and a nut, a front ferrule is embedded in the inner side of the nut, a rear ferrule is embedded in the inner side of the nut, and the front ferrule comprises a grooved snap ring. The inner side of the clamping ring with the groove is fixedly connected with a sealing assembly in a bonding mode, one side of the clamping ring with the groove is fixedly connected with an inclined face clamping ring, the clamping ring with the groove comprises a clamping ring body, an inter-ring groove is formed in the inner side of the clamping ring body, a mounting groove is formed in the inner side of the clamping ring body, an air groove is formed in the inner side of the clamping ring body, and an inclined oil groove is formed in the inner side of the clamping ring body. According to the clamping ring, an active lubricating mechanism is introduced into the device, the safety in the installation process is improved, metal fatigue damage is reduced, the buffering effect is achieved in the connection process, connection is smoother and more uniform, and excessive loss of a clamping sleeve is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of conversion joint, concretely is CT double sleeve conversion joint based on hydrogen compressor pipeline. BACKGROUND

[0002] The CT double sleeve conversion joint in the hydrogen compressor pipeline is a high-performance pipeline connecting piece for connecting hydrogen pipelines, and generally comprises a joint body, a front sleeve, a rear sleeve and a nut.

[0003] During the connection of the sleeve and the sleeve pipe, the sleeve will produce a radial extrusion on the sleeve pipe, so that the inner blade of the sleeve uniformly bites into the sleeve pipe.

[0004] However, when the sleeve and the sleeve pipe are assembled with interference, intermetallic dry friction easily causes local high temperature, which makes the deformation of the sleeve pipe uncontrollable, which accelerates the cracking failure of the sleeve pipe and further causes the risk of hydrogen leakage. UTILITY MODEL CONTENTS

[0005] The utility model discloses a CT double sleeve conversion joint based on a hydrogen compressor pipeline to solve the problem of local high temperature caused by intermetallic dry friction when the sleeve and the sleeve pipe are assembled with interference, which makes the deformation of the sleeve pipe uncontrollable, which accelerates the cracking failure of the sleeve pipe and further causes the risk of hydrogen leakage.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a CT double -sleeve conversion joint based on hydrogen compressor pipeline, including seamless tube, double -end connector and nut, the inside embedding of nut installs front sleeve, the inside embedding of nut installs rear sleeve, the front sleeve includes the snap ring with groove, the inside fixed connection of snap ring with groove has sealing assembly through the way of sticking, one side of snap ring with groove is fixedly connected with inclined surface snap ring, the snap ring with groove includes the snap ring body, the inside of snap ring body is equipped with annular groove, the inside of snap ring body is equipped with installation groove, the inside of snap ring body is equipped with gas groove, the inside of snap ring body is equipped with inclined oil groove, the inside of snap ring body is equipped with inclined square groove, the first plastic column is fixedly connected in the inside of inclined oil groove, the first wave pearl is installed in the inside of inclined oil groove, the outside of seamless tube is equipped with double -end connector, the inside of double -end connector is equipped with limit groove, one side of limit groove is tightly close with one end of seamless tube, the inside of double -end connector is equipped with inclined groove, and the inside of inclined groove is intercommunication with limit groove, and the outside screw of double -end connector is connected with nut.

[0008] As the further optimization of the utility model, the inclined oil groove is in the shape of a cylinder, the inclined square groove is in the shape of a rectangular body, the inclined square groove and the inclined oil groove are in intercommunication, and the diameter of the first wave pearl is the same as the diameter of the inclined oil groove.

[0009] As the further optimization of the utility model, one end of the first plastic column is attached to the outside of the first wave pearl, the first plastic column is provided with a plurality of first plastic columns, and the plurality of first plastic columns are evenly and equidistantly distributed in the inside of the inclined oil groove.

[0010] As the further optimization of the utility model, the sealing assembly includes a hollow elastic rubber strip, the vertical cross section of the hollow elastic rubber strip is in the shape of an ellipse, the outside of the hollow elastic rubber strip is provided with an air hole, and the air hole and the gas groove are in intercommunication.

[0011] As the further optimization of the utility model, the inclined surface snap ring includes a connecting ring, one side of the connecting ring is provided with an arc angle, the inside of the connecting ring is provided with a straight oil groove, the inside of the connecting ring is provided with a straight square groove, the second wave pearl is installed in the inside of the straight oil groove, and the second plastic column is fixedly connected in the inside of the straight oil groove.

[0012] As the further optimization of the utility model, the depth of the straight oil groove is twice the diameter of the second wave pearl, two fifths of the second wave pearl are exposed to the outside of the straight oil groove, the length of the straight square groove is 7 / 10 of the depth of the second wave pearl, the straight oil groove and the inclined oil groove are in the same shape, and the straight square groove and the inclined square groove are in the same shape.

[0013] As the further optimization of the utility model, wherein: the rear sleeve includes extrusion snap ring, one side of the extrusion snap ring is fixedly connected with the embedded snap ring, one side of the embedded snap ring is arc-shaped, and the side of the extrusion snap ring close to the seamless steel pipe is provided with a triangular groove.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In the utility model, the front sleeve and the rear sleeve are arranged, so that the device introduces a positive lubrication mechanism, improves the safety of the installation process, reduces metal fatigue damage, plays a buffering role in the connection process to make the connection more smooth and uniform, avoids excessive damage to the sleeve pipe, and can realize multiple dynamic sealing synergies and zero leakage protection in a hydrogen high-pressure environment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a whole sectional view of the utility model;

[0018] Figure 3 It is Figure 2 It is an enlarged structure schematic view of position A in the utility model;

[0019] Figure 4 It is a whole explosion structure schematic view of the utility model;

[0020] Figure 5 It is a front sleeve sectional view of the utility model;

[0021] Figure 6 It is a slotted snap ring sectional view of the utility model;

[0022] Figure 7 It is Figure 6 It is an enlarged structure schematic view of position B in the utility model;

[0023] Figure 8 It is a sealing assembly sectional view of the utility model.

[0024] Figure 9 It is a bevel snap ring sectional view of the utility model;

[0025] Figure 10 It is Figure 9 It is an enlarged structure schematic view of position C in the utility model;

[0026] Figure 11 It is a rear sleeve sectional view of the utility model.

[0027] In the drawing: 1, seamless steel pipe; 2, double-pass joint; 3, limiting groove; 4, bevel groove; 5, nut;

[0028] 6, front sleeve;

[0029] 61, slotted snap ring; 611, snap ring body; 612, inter-ring slot; 613, mounting slot; 614, air slot; 615, inclined oil groove; 616, inclined square groove; 617, first plastic column; 618, first wave bead;

[0030] 62, sealing assembly; 621, hollow elastic rubber strip; 622, air hole;

[0031] 63, bevel snap ring; 631, connecting ring; 632, arc angle; 633, straight oil groove; 634, straight square groove; 635, second wave bead; 636, second plastic column;

[0032] 7, rear sleeve; 71, extruded snap ring; 72, embedded snap ring; 73, triangular slot. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0035] Please refer to Figures 1-11 The present application provides a technical solution:

[0036] The utility model provides a CT double -layered sleeve conversion joint based on hydrogen compressor pipeline, including seamless steel pipe 1, double -layered joint 2 and nut 5, the inside of nut 5 is embedded and is installed with front sleeve 6, the inside of nut 5 is embedded and is installed with rear sleeve 7, and front sleeve 6 includes slotted snap ring 61, and the inside of slotted snap ring 61 is fixedly connected with sealing assembly 62 in a way of bonding, and one side of slotted snap ring 61 is fixedly connected with inclined snap ring 63, and slotted snap ring 61 includes snap ring body 611, and the inside of snap ring body 611 is provided with ring gap 612, and the inside of snap ring body 611 is provided with installation groove 613, and the inside of snap ring body 611 is provided with gas groove 614, and the inside of snap ring body 611 is provided with inclined oil groove 615, and the inside of snap ring body 611 is provided with inclined square groove 616, and the inside of inclined oil groove 615 is fixedly connected with first plastic column 617, and the inside of inclined oil groove 615 is installed with first wave pearl 618, and the outside of seamless steel pipe 1 is sleeved with double -layered joint 2, and the inside of double -layered joint 2 is provided with limiting groove 3, and one side of limiting groove 3 is in close contact with one end of seamless steel pipe 1, and the inside of double -layered joint 2 is provided with inclined groove 4, and the inside of inclined groove 4 and limiting groove 3 are interconnected, and the outside of double -layered joint 2 is spirally connected with nut 5.

[0037] As a further implementation of the scheme, the shape of the inclined oil groove 615 is a cylinder, the shape of the inclined square groove 616 is a rectangular body, the inclined square groove 616 and the inclined oil groove 615 are interconnected, the diameter of the first wave pearl 618 is the same as the diameter of the inclined oil groove 615, one end of the first plastic column 617 is in close contact with the outside of the first wave pearl 618, the first plastic column 617 is provided with a plurality of first plastic columns 617, and the plurality of first plastic columns 617 are evenly distributed in the inside of the inclined oil groove 615. Such a design can make the first wave pearl 618 be extruded by the extrusion snap ring 71, break the first plastic column 617, and make the lubricating oil in the inclined oil groove 615 flow out, providing lubrication and preventing overheating between the extrusion snap ring 71 and the seamless steel pipe 1.

[0038] As a further implementation of the scheme, the sealing assembly 62 includes a hollow elastic rubber strip 621, the vertical cross-section of the hollow elastic rubber strip 621 is oval, the outside of the hollow elastic rubber strip 621 is provided with an air hole 622, the air hole 622 and the gas groove 614 are interconnected, the rear sleeve 7 includes an extrusion snap ring 71, one side of the extrusion snap ring 71 is fixedly connected with an embedded snap ring 72, one side of the embedded snap ring 72 is arc-shaped, one side of the extrusion snap ring 71 close to the seamless steel pipe 1 is provided with a triangular groove 73, the hollow elastic rubber strip 621 can be in close contact with the extrusion snap ring 71, providing better sealing, and on the other hand, when the air in the hollow elastic rubber strip 621 is discharged from the air hole 622, it can provide buffering for the embedded snap ring 72 inserted into the ring gap 612.

[0039] As a further implementation of the present scheme, the inclined clamping ring 63 comprises a connecting ring 631, one side of the connecting ring 631 is provided with an arc corner 632, the inner side of the connecting ring 631 is provided with a straight oil groove 633, the inner side of the connecting ring 631 is provided with a straight square groove 634, the inner side of the straight oil groove 633 is mounted with a second wave bead 635, the inner side of the straight oil groove 633 is fixedly connected with a second plastic column 636, the depth of the straight oil groove 633 is twice the diameter of the second wave bead 635, two fifths of the second wave bead 635 is exposed outside the straight oil groove 633, the length of the straight square groove 634 is seven tenths of the depth of the second wave bead 635, the straight oil groove 633 and the inclined oil groove 615 are the same shape, and the straight square groove 634 and the inclined square groove 616 are the same shape, which makes the second wave bead 635 can better break the second plastic column 636 and go deep into the straight oil groove 633, so that the lubricating oil in the straight oil groove 633 flows into the inclined groove 4 through the straight square groove 634, and the connection sealing between the seamless steel pipe 1 and other parts is strengthened.

[0040] Work flow: when the device is in use, first insert a seamless steel pipe 1 into the nut 5, then set the rear sleeve 7 on one end of the seamless steel pipe 1, move the rear sleeve 7 so that the rear sleeve 7 enters the nut 5, then also set the front sleeve 6 on one end of the seamless steel pipe 1, similarly move the front sleeve 6 so that the front sleeve 6 also enters the nut 5, then insert the seamless steel pipe 1 with the nut 5 set on one end into the double-pass joint 2, so that one end of the seamless steel pipe 1 is in close contact with one side of the limiting groove 3, then rotate the nut 5, so that the nut 5 and the double-pass joint 2 form a spiral connection, with the rotation and movement of the nut 5, the front sleeve 6 and the rear sleeve 7 inside the nut 5 move accordingly, when the front sleeve 6 moves a certain distance, the inclined surface clamping ring 63 will enter the inclined groove 4 at this time, the inclined surface outside the connecting ring 631 will be in close contact with the inclined groove 4, at the same time, the extrusion clamping ring 71 will also drive the embedded clamping ring 72 to move, and make the embedded clamping ring 72 inserted into the inter-ring groove 612, at the same time, the extrusion clamping ring 71 will extrude the hollow elastic rubber strip 621, so that the air in the hollow elastic rubber strip 621 enters the inter-ring groove 612 through the air hole 622, because the embedded clamping ring 72 is inserted into the inter-ring groove 612, the air cannot be discharged, but can only be extruded, so that when the rear sleeve 7 is close to the front sleeve 6, it is effectively buffered, at the same time, the pressure of the clamping ring body 611 on the extrusion clamping ring 71 is strengthened, providing better sealing performance, when the extrusion clamping ring 71 is completely in close contact with the slotted clamping ring 61, at this time, the extrusion clamping ring 71 extrudes the seamless steel pipe 1 to deform, and the deformed part of the seamless steel pipe 1 is in close contact with the triangular groove 73, better clamping the seamless steel pipe 1, at the same time, because the extrusion clamping ring 71 extrudes the first wave bead 618, the first wave bead 618 exerts pressure on the first plastic column 617, causing the first plastic column 617 to break and enter the inclined oil groove 615, at this time, the lubricating oil in the inclined oil groove 615 will bypass the first wave bead 618 from the surface of the first wave bead 618 through the inclined square groove 616 and then flow out, playing a lubricating effect in the connection process of the extrusion clamping ring 71 and the seamless steel pipe 1, when the inclined surface clamping ring 63 is deeply inserted into the inclined groove 4, the air in the inclined groove 4 is also compressed and will produce pressure on the second wave bead 635, the second wave bead 635 extrudes the second plastic column 636, causing the second plastic column 636 to break and enter the straight oil groove 633, the lubricating oil in the straight oil groove 633 will bypass the second wave bead 635 from the surface of the second wave bead 635 through the straight square groove 634 and then enter the gap between the inclined groove 4 and the inclined surface clamping ring 63, thereby enhancing the sealing performance between the seamless steel pipe 1 and the front sleeve 6.

[0041] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A CT double-jacket transition joint based on hydrogen compressor piping, comprising a seamless steel pipe (1), a double-pass joint (2) and a nut (5), characterized in that: The nut (5) is embedded with a front sleeve (6), and the nut (5) is embedded with a rear sleeve (7), the front sleeve (6) comprises a slotted clasp (61), the slotted clasp (61) is fixedly connected with a sealing assembly (62) on the inner side by bonding, the slotted clasp (61) is fixedly connected with an inclined surface clasp (63) on one side, the slotted clasp (61) comprises a clasp body (611), the clasp body (611) is provided with a ring gap (612) on the inner side, the clasp body (611) is provided with an installation groove (613) on the inner side, the clasp body (611) is provided with a gas groove (614) on the inner side, the clasp body (611) is provided with an inclined oil groove (615) on the inner side, the clasp body (611) is provided with an inclined square groove (616) on the inner side, the inclined oil groove (615) is fixedly connected with a first plastic column (617) on the inner side, the inclined oil groove (615) is provided with a first wave bead (618), the seamless steel pipe (1) is provided with a double-pass joint (2) on the outer side, the double-pass joint (2) is provided with a limiting groove (3) on the inner side, the limiting groove (3) is in close contact with one end of the seamless steel pipe (1) on one side, the double-pass joint (2) is provided with an inclined groove (4) on the inner side, the inclined groove (4) is in communication with the limiting groove (3) on the inner side, and the double-pass joint (2) is provided with a nut (5) on the outer side.

2. The CT double ferrule transition based on hydrogen compressor piping of claim 1, wherein: The inclined oil groove (615) is in the shape of a cylinder, the inclined square groove (616) is in the shape of a rectangular body, the inclined square groove (616) and the inclined oil groove (615) are in communication with each other, and the first wave bead (618) has the same diameter as the inclined oil groove (615).

3. The CT double ferrule transition based on hydrogen compressor piping of claim 1, wherein: One end of the first plastic column (617) is attached to the outer side of the first wave bead (618), a plurality of first plastic columns (617) are provided, and a plurality of first plastic columns (617) are evenly and equidistantly distributed on the inner side of the inclined oil groove (615).

4. The CT double ferrule transition based on hydrogen compressor piping of claim 1, wherein: The sealing assembly (62) comprises a hollow elastic rubber strip (621), the vertical section of the hollow elastic rubber strip (621) is oval, the outer side of the hollow elastic rubber strip (621) is provided with an air hole (622), and the air hole (622) is in communication with the gas groove (614).

5. The CT double ferrule transition based on hydrogen compressor piping of claim 1, wherein: The inclined surface clasp (63) comprises a connecting ring (631), the connecting ring (631) is provided with an arc corner (632) on one side, the connecting ring (631) is provided with a straight oil groove (633) on the inner side, the connecting ring (631) is provided with a straight square groove (634) on the inner side, the straight oil groove (633) is provided with a second wave bead (635) on the inner side, and the straight oil groove (633) is fixedly connected with a second plastic column (636).

6. The CT double ferrule transition based on hydrogen compressor piping of claim 5, wherein: The depth of the straight oil groove (633) is twice the diameter of the second wave bead (635), two fifths of the second wave bead (635) are exposed outside the straight oil groove (633), the length of the straight square groove (634) is seven tenths of the depth of the second wave bead (635), the straight oil groove (633) is the same shape as the inclined oil groove (615), and the straight square groove (634) is the same shape as the inclined square groove (616).

7. The CT double ferrule transition based on hydrogen compressor piping of claim 1, wherein: The rear sleeve (7) comprises a squeezing ring (71), one side of the squeezing ring (71) is fixedly connected with an embedded ring (72), one side of the embedded ring (72) is arc-shaped, and a triangular groove (73) is formed in the side of the squeezing ring (71) close to the seamless steel pipe (1).

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