CN216843541U

CN216843541U - Flange electrostatic jumper assembly and pipeline system thereof

Info

Publication number: CN216843541U
Application number: CN202220403060.8U
Authority: CN
Inventors: 国超; 朱文锋; 李宝钢; 徐鑫; 陈可营; 张峙; 林谋; 宋晓龙; 李土振; 李文涛; 苟潮洋
Original assignee: China National Offshore Oil Corp CNOOC; CNOOC China Ltd Zhanjiang Branch; CNOOC China Ltd Hainan Branch
Current assignee: China National Offshore Oil Corp CNOOC; CNOOC China Ltd Zhanjiang Branch; CNOOC China Ltd Hainan Branch
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-06-28
Anticipated expiration: 2032-02-24

Abstract

The utility model relates to a flange static jumper assembly and pipe-line system thereof. The flange electrostatic jumper assembly comprises two connectors, two connecting sleeves respectively sleeved on the connectors and a lead connected with the connecting sleeves, wherein two ends of the lead respectively penetrate through the wall surfaces of the connecting sleeves and are at least flush with the inner surfaces of the connecting sleeves; the connectors are all made of conductive materials; the connecting sleeve is made of plastic. A pipeline system comprises a valve provided with a first flange, a second flange connected with the first flange and a flange electrostatic jumper assembly, preformed holes are formed in the outer circumferential surfaces of the first flange and the second flange, and connectors are installed in the preformed holes respectively. The connecting sleeve is made of plastic, and when the electrostatic jumper assembly is used, the connecting sleeve isolates the connector made of conductive materials from the external high-temperature high-salt environment, so that the whole electrostatic jumper assembly cannot be corroded or rusted. If the harm that the subassembly took place, the adapter sleeve can be pulled down from the connector fast, promotes and changes efficiency.

Description

Flange electrostatic jumper assembly and pipeline system thereof

Technical Field

The utility model relates to a pipe-line system jumper technical field, more specifically relates to a flange static jumper subassembly and pipe-line system thereof.

Background

When the oil/water mixture is transported by using a pipeline on an offshore oil platform, an electric double layer is formed on the contact surface of liquid and solid due to the fact that the liquid is in contact with the solid such as a pipeline and a flange, and a part of charges in the electric double layer are carried away along with the flowing of the liquid to generate static electricity. The static cross-over is used for eliminating static electricity and preventing the generation of static sparks, two adjacent flanges are connected by metal with better conductivity, the pipeline is grounded, and a discharge channel is provided for generated charges. The petrochemical engineering electrostatic grounding design specification (SH/T3097-2017) requires that electrostatic grounding measures should be taken when electrostatic damage is caused by possible generation and accumulation of static electricity in equipment, pipelines, operating tools, human bodies and the like during production, processing, storage and transportation.

The existing equipotential flange jumper comprises a first clamping part and a second clamping part, wherein the second clamping part is connected with the first clamping part, the second clamping part and the second clamping part are all conductive structural parts, the first clamping part is used for being connected with a bolt or a nut of an upper flange, and the second clamping part is used for being connected with a bolt or a nut of a lower flange. The upper flange and the lower flange are electrically communicated with each other at equal potential through the bolts or nuts connected to the upper flange by the first clamping parts and the bolts or nuts connected to the lower flange by the second clamping parts.

However, in the above technical solution, the first clamping member, the second clamping member and the bridging member are all conductive structural members, that is, all metal members. And marine oil platform static cross-over connection ware is after high temperature, long-time use in the high salt environment, therefore the metalwork appears corroding easily and drops, connect the corrosion scheduling problem, lead to static cross-over connection ware short-lived, need frequent change, moreover after taking place the corrosion between metalwork and the metalwork, can lead to being difficult to demolish the change, consequently probably lead to changing the in-process, need stop the production procedure, change after releasing production pipeline pressure again, the production efficiency is reduced, consuming time and wasting power, change efficiency is lower.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned current static cross-over connection ware and take place to corrode easily and drop and connect the problem of corrosion, provide a flange static cross-over connection subassembly and pipe-line system thereof, make static cross-over connection subassembly be difficult to take place to corrode or the corrosion just can ensure to change efficiently.

In order to solve the technical problem, the utility model discloses a technical scheme is: a flange electrostatic jumper assembly comprises two connectors, two connecting sleeves respectively sleeved on the connectors and a lead for connecting the two connecting sleeves, wherein two ends of the lead respectively penetrate through the wall surfaces of the connecting sleeves and are at least flush with the inner surfaces of the connecting sleeves; the connectors are all made of conductive materials; the connecting sleeve is made of plastic.

In the technical scheme, the connectors are respectively arranged on two connected flanges of the pipeline, then the connecting sleeves are respectively sleeved on the connectors, the inner surfaces of the connecting sleeves are attached to the outer surfaces of the connectors, and therefore the wires penetrating through the wall surfaces of the connecting sleeves can be abutted to the connectors, so that the two connectors are connected together through the wires. When the device is used, in the normal production process of the offshore oil platform, the oil-water mixture is conveyed along the pipeline and is in contact with solids such as valves, pipelines and flanges, an electric double layer is formed on the contact surface of liquid and the solids, and part of charges in the electric double layer are taken away along with the flowing of the liquid to generate electrostatic load. And because the flange end rusts and often adopts reasons such as gasket such as graphite, causes the unable migration in time of electric charge, produces the accumulative static load gradually, and at this moment, the connector is through linking to each other with two flanges, and the pipeline internal accumulation static load passes through the connector of a flange and conducts to wire, another flange in proper order, reaches the purpose of both ends flange ground connection.

And because the adapter sleeve is the plastics material, can not take place the corrosion with flange or connector between to thereby can protect the connector can not expose in the high temperature high salt environment of offshore oil platform, make whole static jumper wire subassembly can not take place to corrode and the corrosion. If the harm that the subassembly took place, the adapter sleeve can be pulled down from the connector fast, promotes and changes efficiency.

Preferably, the connecting sleeve is connected with the connecting head in a buckling manner. The connecting sleeve is connected with the connector buckle to ensure that the connecting sleeve and the connector are stable after being connected and can not be separated.

Preferably, the outer surface of the connector is provided with a clamping groove, and the connecting sleeve is provided with a clamping claw part matched with the clamping groove. The clamping claw part protrudes out of the outer surface of the connecting sleeve, when the connecting sleeve is installed into the connector, the clamping claw part is clamped into the clamping groove, and the connecting sleeve cannot be separated from the connector under the action of no large external force, so that the connecting sleeve and the connector can be used for a long time.

Preferably, the outer surface of connector is provided with the block groove, the adapter sleeve for with the quick joint that the block groove is connected. The quick clamping head is connected with the connector, so that the resistance of disassembly and assembly is smaller, and the disassembly and the assembly are more convenient.

Preferably, the clamping groove is an annular groove, so that the connecting sleeve can be ensured to be sleeved on the connecting head without adjusting the installation direction of the connecting sleeve, and the clamping claw part can be clamped with the clamping groove.

Preferably, the lead is connected with the top surface of the connecting sleeve and can be abutted against the top surface of the connecting head after penetrating through the top wall of the connecting sleeve. The wire just with the connector butt after the connecting sleeve is installed into the connector completely, the in-process wire of installing at the connecting sleeve can not contact and take place relative friction and lead to the wire to have some wearing and tearing with the connector, also ensures that only adorns the back completely with the connecting sleeve, and the subassembly just begins to play its effect.

Preferably, one end of the connecting head, which is arranged in the connecting sleeve, is conical or truncated cone-shaped. The inclined surface of the circular truncated cone or the cone is more convenient for the connecting sleeve to be sleeved on the connecting head from top to bottom, and the installation resistance of the connecting sleeve is reduced. Meanwhile, in order to increase the area of the connector that can be in contact with the wire, the truncated cone shape is more preferable.

Preferably, the surface of the wire is wrapped by an insulating layer. The insulating layer can perform isolation protection on the wires.

A pipeline system comprises a valve provided with a first flange, a pipeline provided with a second flange and the flange electrostatic jumper assembly, wherein preformed holes are formed in the outer circumferential surfaces of the first flange and the second flange, and connectors are installed in the preformed holes respectively. The oil-water mixture is conveyed along the pipeline and is in contact with the valve, the first flange and the second flange, an electric double layer is formed on the contact surface of the liquid and the solid, and a part of charges in the electric double layer are carried away along with the flowing of the liquid, so that electrostatic load is generated. And because the flange end rusts and often adopts reasons such as gaskets such as graphite, cause the unable migration in time of electric charge, produce the accumulative static load gradually, at this moment, the connector is through linking to each other with first flange and second flange respectively, and the interior accumulative static load of pipeline conducts to wire, second flange through the connector of first flange in proper order, reaches the purpose of both ends flange ground connection.

Preferably, the connector and the preformed hole may be in a threaded connection or a slot-type connection, and in order to have higher installation stability, the threaded connection is preferred.

Compared with the prior art, the beneficial effects are: the connecting sleeve is made of plastic, and the connecting head made of conductive materials is isolated from the external high-temperature high-salt environment, so that the whole electrostatic jumper assembly cannot be corroded or rusted. If the harm that the subassembly took place, the adapter sleeve can be pulled down from the connector fast, promotes and changes efficiency.

Drawings

Fig. 1 is a schematic structural view of a flange electrostatic jumper assembly of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the connecting head of the present invention;

fig. 3 is a schematic structural diagram of a piping system according to the present invention.

Wherein, 100-connecting head; 101-a clamping groove; 200-connecting sleeves; 201-a jaw portion; 300-a wire; 400-a valve; 401-a first flange; 402-second flange.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

As shown in fig. 1, an embodiment of a flange electrostatic jumper assembly includes two connectors 100, two connecting sleeves 200 respectively sleeved on the connectors 100, and a conducting wire 300 connecting the two connecting sleeves 200, wherein two ends of the conducting wire 300 respectively penetrate through the wall surfaces of the connecting sleeves 200 and are at least flush with the inner surfaces of the connecting sleeves 200; the connectors 100 are made of conductive materials; the connecting sleeve 200 is made of plastic. The lead 300 is made of oxygen-free copper with purity of more than 99.95%, and can still have good electric conduction and corrosion resistance even if accidentally exposed to high-temperature and high-salt environments.

Wherein, the connecting sleeve 200 is connected with the connecting head 100 in a snap-fit manner. The snap connection of the connection sleeve 200 and the connection head 100 can ensure that the connection between the two is stable and will not be separated. In this embodiment, the outer surface of the connector 100 is provided with the engaging groove 101, the connecting sleeve 200 is provided with the claw portion 201 engaged with the engaging groove 101, the claw portion 201 protrudes out of the hemispherical protrusion of the outer surface of the connecting sleeve 200, when the connecting sleeve 200 is installed in the connector 100, the claw portion 201 is engaged in the engaging groove 101, and the connecting sleeve 200 cannot be separated from the connector 100 without a large external force, so that the connecting sleeve 200 and the connector 100 can be used for a long time. The engaging groove 101 is an annular groove so that the connecting sleeve 200 can be securely attached to the connecting head 100 without adjusting the attaching direction of the connecting sleeve 200 and the claw portion 201 can be engaged with the engaging groove 101.

Specifically, the wire 300 is connected to the top surface of the connecting sleeve 200 and can abut against the top surface of the connecting head 100 after passing through the top wall of the connecting sleeve 200, and in this embodiment, the end surface of the wire passing through one end of the connecting sleeve 200 is flush with the inner surface of the connecting sleeve 200. The lead 300 is abutted against the connector 100 after the connecting sleeve 200 is completely installed in the connector 100, the lead 300 cannot be contacted with the connector 100 and generates relative friction to cause abrasion of the lead 300 in the installation process of the connecting sleeve 200, and the assembly is ensured to play a role only after the connecting sleeve 200 is completely installed.

Further, one end of the connector 100, which is inserted into the connecting sleeve 200, is of a truncated cone shape. The inclined surface of the circular truncated cone facilitates the sleeving of the connecting sleeve 200 on the connecting head 100 from top to bottom, and reduces the installation resistance of the connecting sleeve 200. Meanwhile, the area of the top end of the circular truncated cone is larger, so that the area of the contact of the connector 100 and the wire 300 can be increased.

In addition, the surface of the wire 300 is covered with an insulating layer. The insulating layer may provide insulation protection for the wire 300.

The working principle or working process of the embodiment is as follows: the connectors 100 are respectively installed on two connected flanges of the pipeline, then the connecting sleeves 200 are respectively sleeved on the connectors 100, the inner surfaces of the connecting sleeves 200 are attached to the outer surfaces of the connectors 100, therefore, the wires 300 penetrating through the wall surfaces of the connecting sleeves 200 can be abutted against the connectors 100, and the two connectors 100 are connected together through the wires 300. When the device is used, in the normal production process of the offshore oil platform, the oil-water mixture is conveyed along the pipeline and is in contact with solids such as a valve 400, a pipeline, a flange and the like, an electric double layer is formed on the contact surface of liquid and the solids, and a part of charges in the electric double layer are taken away along with the flowing of the liquid to generate electrostatic load. And because the flange end rusts and often adopts reasons such as gasket such as graphite, cause the unable migration in time of electric charge, produce accumulation electrostatic load gradually, at this moment, connector 100 is through linking to each other with two flanges, and the interior accumulation electrostatic load of pipeline is conducted to wire 300, another flange through connector 100 of a flange in proper order, reaches the purpose of both ends flange ground connection. And because the adapter sleeve 200 is the plastics material, can not take place the corrosion with between flange or the connector 100 to thereby can protect connector 100 can not expose in the high temperature high salt environment of offshore oil platform, make whole static jumper wire subassembly can not take place to corrode and the corrosion. If the damage that the subassembly took place, adapter sleeve 200 can be pulled down from connector 100 fast, promotes the replacement efficiency.

The beneficial effects of this embodiment: the connecting sleeve 200 is made of plastic, and when the electrostatic jumper assembly is used, the connecting sleeve 200 isolates the connector 100 made of conductive materials from the external high-temperature high-salt environment, so that the whole electrostatic jumper assembly cannot be corroded or rusted. If the assembly is damaged, the connecting sleeve 200 can be quickly detached from the connecting head 100, so that the replacement efficiency is improved.

Example 2

Embodiment 2 of a flange electrostatic jumper assembly is different from embodiment 1 in that, as shown in fig. 2, a connecting sleeve 200 is different from embodiment 1 in structure.

Specifically, the connection sleeve 200 is a quick-locking joint connected to the locking groove 101. The two connectors 100 are connected through the quick clamping joint, so that the resistance of disassembly and assembly is smaller, and the disassembly and assembly are more convenient.

In this embodiment, the quick-fastening connector is a C-shaped buckle.

The remaining features and operating principle of this implementation are consistent with embodiment 1.

Example 3

As shown in fig. 3, an embodiment of a pipeline system includes a valve 400 provided with a first flange 401, a second flange 402 connected with the first flange 401, and the electrostatic jumper assembly of the flange of embodiment 1 or 2, in this embodiment, the second flange 402 is provided with one end of a pipeline connected with the valve 400, preformed holes are provided on the outer circumferential surfaces of the first flange 401 and the second flange 402, the axes of the preformed holes are perpendicular to the axis of the first flange, and the connectors 100 are respectively installed in the preformed holes. The oil-water mixture is transported along the pipeline and contacts with the valve 400, the first flange 401 and the second flange 402, an electric double layer is formed on the contact surface of the liquid and the solid, and a part of charges in the electric double layer are carried away along with the flowing of the liquid, so that electrostatic load is generated. And because the flange end rusts and often adopts reasons such as gasket such as graphite, cause the unable migration in time of electric charge, produce accumulation electrostatic load gradually, at this moment, connector 100 is through linking to each other with first flange 401 and second flange 402 respectively, and the pipeline is interior to accumulate electrostatic load and is conducted to wire 300, second flange 402 through connector 100 of first flange 401 in proper order, reaches the purpose of both ends flange ground connection.

In this embodiment, the connection head 100 is screwed with the prepared hole.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The electrostatic jumper assembly for the flange is characterized by comprising two connectors (100), two connecting sleeves (200) respectively sleeved on the connectors (100) and a lead (300) connected with the two connecting sleeves (200), wherein two ends of the lead (300) respectively penetrate through the wall surfaces of the connecting sleeves (200) and are at least flush with the inner surfaces of the connecting sleeves (200); the connectors (100) are all made of conductive materials; the connecting sleeve (200) is made of plastic.

2. A flange electrostatic jumper assembly according to claim 1, wherein the connection sleeve (200) is snap-fit to the connection head (100).

3. The flange electrostatic jumper assembly according to claim 2, wherein the outer surface of the connector (100) is provided with a snap groove (101), and the connection sleeve (200) is provided with a claw portion (201) which is matched with the snap groove (101).

4. A flange electrostatic jumper assembly according to claim 2, wherein the outer surface of the connector (100) is provided with a snap groove (101), and the connection sleeve (200) is a quick snap connector connected with the snap groove (101).

5. A flange electrostatic jumper assembly according to claim 3 or 4, wherein the snap-in groove (101) is an annular groove.

6. A flange electrostatic jumper assembly according to claim 5, wherein the conducting wire (300) is connected with the top surface of the connecting sleeve (200) and can be abutted with the top surface of the connecting head (100) after penetrating through the top wall of the connecting sleeve (200).

7. A flange electrostatic jumper assembly according to claim 6, wherein the end of the connector (100) fitted into the connection sleeve (200) is of a truncated cone shape.

8. A flanged electrostatic jumper assembly according to claim 1, wherein the surface of the conductor (300) is coated with an insulating layer.

9. A pipe system comprising a valve (400) provided with a first flange (401) and a pipe provided with a second flange (402), said first flange (401) being connected to said second flange (402), characterized by further comprising a flange electrostatic jumper assembly according to any of claims 1-8, said first flange (401) and said second flange (402) being provided with a preformed hole on their outer circumferential surfaces, said connectors (100) being mounted in said preformed holes, respectively.

10. A pipe system according to claim 9, wherein the connection head (100) is screwed to the prepared hole.