CN216765064U

CN216765064U - Constant potential rectifier with impressed current cathodic protection structure

Info

Publication number: CN216765064U
Application number: CN202220161906.1U
Authority: CN
Inventors: 王阳春
Original assignee: Bayinbuluke Engineering Technology Guangdong Co ltd
Current assignee: Bayinbuluke Engineering Technology Guangdong Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-06-17
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a constant potential rectifier with an impressed current cathodic protection structure, which comprises a shell and an auxiliary anode, wherein the shell is provided with a cathode protection structure; a housing: an anode transmission line is arranged in an anode mounting hole arranged on the front surface of the shell, and a cathode transmission line is arranged in a cathode mounting hole arranged on the left surface of the shell; auxiliary anode: the outer arc surface of the anode transmission line is provided with symmetrically distributed fixed blocks, a first locking bolt is connected with a screw hole at the upper end of the left fixed block through internal threads, the right end of the first locking bolt is provided with a first top plate, and the lower end of the anode transmission line is positioned between the right end face of the first top plate and the left surface of the right fixed block; wherein: the constant potential rectifier with the impressed current cathodic protection structure is suitable for metal pipelines with various outer diameters, and is simple and convenient in installation process.

Description

Constant potential rectifier with impressed current cathodic protection structure

Technical Field

The utility model relates to the technical field of pipeline corrosion prevention, in particular to a constant potential rectifier with an impressed current cathodic protection structure.

Background

The corrosion prevention of the pipeline refers to measures for slowing down or preventing the pipeline from being corroded and deteriorated under the chemical and electrochemical actions of internal and external media or the metabolic activity of microorganisms, most pipelines for conveying oil and gas are in a complex soil environment, and the conveyed media are also corrosive, so that the inner wall and the outer wall of the pipeline can be corroded, and at present, the following methods are mainly adopted: the protection method comprises the steps of protecting the pipeline by an insulating layer corrosion prevention method, a drainage protection method, a protective coating, an electrode protection method, application of new materials and the like, wherein in the existing electrode protection method, when a metal pipeline is connected with a connecting line, a clamping device is usually arranged between the connecting line and the metal pipeline, however, when the protection method is used for metal pipelines with different radiuses, the corresponding clamping device needs to be replaced and installed, the operation is time-consuming and labor-consuming, the workload of operators is increased, the installation process is not simple and convenient enough, and the next procedure is inconvenient to smoothly carry out.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a constant potential rectifier with an impressed current cathodic protection structure, wherein related workers can adjust according to the change of the outer diameter of a metal pipeline, so that the problems in the background art can be effectively solved.

In order to achieve the purpose, the utility model provides the following technical scheme: a potentiostat with impressed current cathodic protection structure comprises a shell and an auxiliary anode;

a housing: an anode transmission line is arranged in an anode mounting hole arranged on the front surface of the shell, and a cathode transmission line is arranged in a cathode mounting hole arranged on the left surface of the shell;

auxiliary anode: the outer arc surface of the anode transmission line is provided with symmetrically distributed fixed blocks, a first locking bolt is connected with a screw hole in the upper end of the fixed block on the left side in a threaded manner, a first top plate is arranged at the right end of the first locking bolt, and the lower end head of the anode transmission line is positioned between the right end surface of the first top plate and the left surface of the fixed block on the right side;

wherein: still include the control switch group, the control switch group sets up in the inside of shell, external power source is connected to the input electricity of control switch group, the input of positive pole transmission line is connected to the positive pole output electricity of control switch group, the fixed block input on right side is connected to the output electricity of positive pole transmission line, the fixed block output electricity on right side is connected the input of supplementary positive pole, the input of negative pole transmission line is connected to the negative pole output electricity of control switch group, be applicable to the metal pipeline of various external diameters, relevant staff can adjust according to the external diameter change of metal pipeline simultaneously, avoid appearing the unstable condition that leads to producing the return circuit of contact and take place, the installation is simple and convenient, be convenient for go on smoothly of next procedure.

Furthermore, the connecting unit is arranged at the lower end of the cathode transmission line and plays a role in quick connection.

Further, the linkage unit includes scissors frame, fixed slot and arc contact plate, the intrados of scissors frame all is equipped with the fixed slot, and the arc contact plate has all been pegged graft to the inside of fixed slot, is applicable to the metal pipeline of various external diameters.

Furthermore, the connecting unit further comprises springs, the springs are respectively and uniformly arranged between the inner arc surface of the fixing groove and the outer arc surface of the arc-shaped contact plate, and the springs are self-adaptively adjusted by utilizing the elasticity characteristic of the springs.

Further, the linkage unit still includes a connecting cylinder, two locking bolts and top flat two, the connecting cylinder sets up in the outer cambered surface of the arc contact plate on right side, the connecting cylinder right-hand member runs through scissors frame's outer cambered surface rightmost end and has two locking bolts at end threaded connection, two locking bolts's outside right-hand member movable sleeve is equipped with two top flat, two top flat's right-hand member face contacts with two locking bolts's left side along the face, the lower extreme end department of cathode transmission line is located between the right-hand member face of connecting cylinder and the left end face of two top flat, the outside of connecting cylinder is established with the inside movable sleeve of spring, the input of connecting cylinder is connected to the output electricity of cathode transmission line, the arc contact plate output on right side is connected to the output electricity of connecting cylinder, quick connection's purpose has been reached.

Further, the front surface upper end right side of scissors frame rotates through the pivot and is connected with a screw thread section of thick bamboo, and the left end face of a screw thread section of thick bamboo has the operating ring through annular spout sliding connection, and the front surface upper end left side of scissors frame rotates through the pivot and is connected with the screw rod, and the right-hand member and the operating ring threaded connection of screw rod extend to the inside of a screw thread section of thick bamboo, and relevant staff can adjust according to metal pipeline's external diameter change.

Furthermore, the auxiliary anode is a spherical ferrosilicon auxiliary anode, and the material characteristics of the auxiliary anode are utilized to improve the efficiency and the quality.

Compared with the prior art, the utility model has the beneficial effects that: the potentiostat with the impressed current cathodic protection structure has the following advantages:

1. at first the staff with the pipe centre gripping of scissors frame with the correspondence, then clockwise rotation handle ring, the handle ring can drive the continuous axis direction along the screw rod of screw thread section of thick bamboo when rotating and remove, thereby make the clearance between the contained angle of scissors frame lower extreme can be continuous reduce, with this fixed centre gripping at the extrados of pipeline, be applicable to the metal pipeline of various external diameters, relevant staff can adjust according to the external diameter change of metal pipeline simultaneously, arc contact plate atress and transmission give the spring at this in-process, the spring produces deformation and provides a reaction force simultaneously, make the arc contact plate closely laminate with the extrados of pipeline, avoid appearing the unstable condition that leads to producing the return circuit of contact and take place.

2. The staff places the link of negative pole transmission line between the right-hand member face of connecting cylinder and the left end face of top flat two, then screw up locking bolt two, top flat two and connecting cylinder cooperation are fixed the negative pole transmission line, then the staff will be at one side on ground inside landfill supplementary positive pole and place the positive pole transmission line between the right-hand member face of top flat one and the fixed block left surface on right side, later screw up locking bolt one, the cooperation of fixed block and top flat three is accomplished the positive pole transmission line fixedly, then regulation and control switch group, realize the electricity transmission, the installation is simple convenient, be convenient for go on smoothly of next procedure.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the connecting unit of the present invention;

FIG. 3 is a schematic plan view of an auxiliary anode according to the present invention;

FIG. 4 is an enlarged schematic view of the structure at the position A of the present invention;

fig. 5 is a schematic sectional view of the threaded cylinder of the present invention.

In the figure: the device comprises a shell 1, an anode transmission line 2, an auxiliary anode 3, a fixing block 4, a locking bolt I5, a top plate I6, a cathode transmission line 7, a control switch group 8, a connecting unit 9, a scissor rack 91, a fixing groove 92, a spring 93, an arc contact plate 94, a connecting cylinder 95, a locking bolt II 96, a top plate II 97, a threaded cylinder 10, a screw rod 11 and an operating ring 12.

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. 1-5, the present embodiment provides a technical solution: a potentiostat with impressed current cathodic protection structure comprises a shell 1 and an auxiliary anode 3;

the shell 1: the shell 1 provides a place for installing and connecting the accessory mechanism units, an anode transmission line 2 is arranged in an anode installation hole arranged on the front surface of the shell, the anode transmission line 2 plays a role in transmission, a cathode transmission line 7 is arranged in a cathode installation hole arranged on the left surface of the shell 1, and the cathode transmission line 7 plays a role in transmission;

auxiliary anode 3: the outer cambered surface of the anode transmission line is provided with symmetrically distributed fixed blocks 4, a locking bolt I5 is connected with a screw hole at the upper end of the fixed block 4 at the left side in a threaded manner, a top plate I6 is arranged at the right end of the locking bolt I5, the lower end head of the anode transmission line 2 is positioned between the right end surface of the top plate I6 and the left surface of the fixed block 4 at the right side, a worker can bury the auxiliary anode 3 in one side of the ground and place the anode transmission line 2 between the right end surface of the top plate I6 and the left surface of the fixed block 4 at the right side, then the locking bolt I5 is screwed, the locking bolt I5, the fixed block 4 and the top plate I6 are matched to complete the fixation of the anode transmission line 2, then a control switch group 8 is regulated and controlled to realize electric transmission, the installation process is simple and convenient, the next process can be smoothly carried out, the current flows out from the anode after being electrified and enters the soil through the anode transmission line 2, the fixed block 4 and the auxiliary anode 3, then flows onto the pipeline and returns to the negative pole of the power supply along the arc contact plate 94, the connecting cylinder 95 and the cathode transmission line 7, thereby playing a role of protecting the pipeline;

wherein: still include control switch group 8, control switch group 8 sets up in the inside of shell 1, external power source is connected to control switch group 8's input electricity, control switch group 8's positive pole output electricity connects the input of positive pole transmission line 2, the fixed block 4 inputs on right side is connected to positive pole transmission line 2's output electricity, the fixed block 4 outputs on right side electricity connects the input of supplementary positive pole 3, control switch group 8's negative pole output electricity connects the input of negative pole transmission line 7, regulate and control each electrical components and operate.

Wherein: the connecting unit 9 is arranged at the lower end of the cathode transmission line 7, the connecting unit 9 comprises a scissor rack 91, a fixing groove 92 and an arc contact plate 94, the fixing groove 92 is formed in the inner arc surface of the scissor rack 91, the arc contact plate 94 is inserted into the fixing groove 92, the connecting unit 9 further comprises a spring 93, the spring 93 is respectively and uniformly arranged between the inner arc surface of the fixing groove 92 and the outer arc surface of the arc contact plate 94, the connecting unit 9 further comprises a connecting cylinder 95, a second top plate 97 and a second locking bolt 96, the connecting cylinder 95 is arranged on the outer arc surface of the arc contact plate 94 on the right side, the right end of the connecting cylinder 95 penetrates through the rightmost end of the outer arc surface of the scissor rack 91 and is in threaded connection with the second locking bolt 96 at the end, the second top plate 97 is movably sleeved at the right end of the second locking bolt 96, and the right end surface of the second top plate 97 is in contact with the left edge surface of the second locking bolt 96, the lower end of the cathode transmission line 7 is located between the right end face of the connecting cylinder 95 and the left end face of the top plate II 97, the outer portion of the connecting cylinder 95 is movably sleeved with the inner portion of the spring 93, the output end of the cathode transmission line 7 is electrically connected with the input end of the connecting cylinder 95, the output end of the connecting cylinder 95 is electrically connected with the output end of the arc contact plate 94 on the right side, the arc contact plate 94 is stressed and transmitted to the spring 93, the spring 93 deforms and provides a reaction force simultaneously, so that the arc contact plate 94 can be tightly attached to the outer arc face of the pipeline, the phenomenon that a loop is generated due to unstable contact is avoided, a worker places the connecting end of the cathode transmission line 7 between the right end face of the connecting cylinder 95 and the left end face of the top plate II 97 after the stress, then tightens the locking bolt II 96, the top plate II 97 and the connecting cylinder 95 are matched to fix the cathode transmission line 7, the purpose of quick connection is achieved.

Wherein: the right side of the upper end of the front surface of the scissor rack 91 is connected with a threaded cylinder 10 through a rotating shaft in a rotating manner, the left end face of the threaded cylinder 10 is connected with an operating ring 12 through an annular sliding groove in a sliding manner, the left side of the upper end of the front surface of the scissor rack 91 is connected with a screw rod 11 through a rotating shaft in a rotating manner, the right end of the screw rod 11 is in threaded connection with the operating ring 12 and extends to the inside of the threaded cylinder 10, firstly, a worker clamps the scissor rack 91 and a corresponding pipeline, then the operating ring 12 rotates clockwise, the operating ring 12 can drive the threaded cylinder 10 to continuously move along the axis direction of the screw rod 11 when rotating, and therefore gaps between included angles at the lower end of the scissor rack 91 can be continuously reduced, so that the gap between the lower end of the scissor rack 91 is fixedly clamped on the outer arc surface of the pipeline, the metal pipeline is suitable for various outer diameters, and meanwhile, related workers can adjust according to the change of the outer diameters of the metal pipeline.

Wherein: the auxiliary anode 3 is a spherical ferrosilicon auxiliary anode, and the efficiency and the quality are improved by utilizing the material characteristics of the auxiliary anode.

The working principle of the potentiostat with the impressed current cathodic protection structure provided by the utility model is as follows: firstly, a worker clamps the scissor rack 91 and a corresponding pipeline, then rotates the operating ring 12 clockwise, the operating ring 12 drives the threaded cylinder 10 to continuously move along the axial direction of the screw rod 11 when rotating, so that the gap between included angles at the lower end of the scissor rack 91 can be continuously reduced, the operating ring is fixedly clamped on the outer arc surface of the pipeline, the device is suitable for metal pipelines with various outer diameters, related workers can adjust according to the change of the outer diameters of the metal pipelines, in the process, the arc contact plate 94 is stressed and transmitted to the spring 93, the spring 93 deforms and simultaneously provides a reaction force, so that the arc contact plate 94 can be tightly attached to the outer arc surface of the pipeline, the situation that a loop is generated due to unstable contact is avoided, and then the worker places the connecting end of the cathode transmission line 7 between the right end surface of the connecting cylinder 95 and the left end surface of the top plate 97, then screwing a second locking bolt 96, the second locking bolt 96, a second top plate 97 and a connecting cylinder 95 are matched to fix the cathode transmission line 7, then a worker buries the auxiliary anode 3 in one side of the ground and places the anode transmission line 2 between the right end face of the first top plate 6 and the left surface of the fixing block 4 on the right side, then screwing a first locking bolt 5, matching the first locking bolt 5, the fixing block 4 and the first top plate 6 to fix the anode transmission line 2, then the control switch group 8 is regulated and controlled to realize electric transmission, the installation process is simple and convenient, the next procedure is convenient to smoothly carry out, after the power is on, the current flows out from the positive pole, enters the soil through the anode transmission line 2, the fixed block 4 and the auxiliary anode 3, flows onto the pipeline, and returns to the negative pole of the power supply along the arc-shaped contact plate 94, the connecting cylinder 95 and the cathode transmission line 7, so that the pipeline is protected.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A constant potential rectifier with impressed current cathodic protection structure, characterized by: comprises a shell (1) and an auxiliary anode (3);

housing (1): an anode transmission line (2) is arranged in an anode mounting hole arranged on the front surface of the shell, and a cathode transmission line (7) is arranged in a cathode mounting hole arranged on the left surface of the shell (1);

auxiliary anode (3): the outer arc surface of the anode transmission line is provided with symmetrically distributed fixed blocks (4), a first locking bolt (5) is connected to a screw hole in the upper end of the fixed block (4) on the left side in a threaded manner, a first top plate (6) is arranged at the right end of the first locking bolt (5), and the lower end head of the anode transmission line (2) is positioned between the right end surface of the first top plate (6) and the left surface of the fixed block (4) on the right side;

wherein: still include control switch group (8), control switch group (8) set up in the inside of shell (1), and external power source is connected to the input electricity of control switch group (8), and the input of positive pole transmission line (2) is connected to the positive pole output electricity of control switch group (8), and fixed block (4) input on right side is connected to the output electricity of positive pole transmission line (2), and the input of supplementary positive pole (3) is connected to fixed block (4) output electricity on right side, and the input of negative pole transmission line (7) is connected to the negative pole output electricity of control switch group (8).

2. A potentiostat with impressed current cathodic protection as recited in claim 1, wherein: the cathode transmission line structure is characterized by further comprising a connecting unit (9), wherein the connecting unit (9) is arranged at the lower end of the cathode transmission line (7).

3. A potentiostat with impressed current cathodic protection as recited in claim 2, wherein: the connecting unit (9) comprises a scissor rack (91), a fixing groove (92) and an arc-shaped contact plate (94), wherein the fixing groove (92) is formed in the inner arc surface of the scissor rack (91), and the arc-shaped contact plate (94) is inserted into the fixing groove (92).

4. A potentiostat with impressed current cathodic protection as recited in claim 3, wherein: the connecting unit (9) further comprises springs (93), and the springs (93) are respectively and uniformly arranged between the inner arc surfaces of the fixing grooves (92) and the outer arc surfaces of the arc-shaped contact plates (94).

5. A potentiostat with impressed current cathodic protection as recited in claim 4, wherein: the connecting unit (9) further comprises a connecting cylinder (95), a second locking bolt (96) and a second top plate (97), connecting cylinder (95) sets up in arc contact plate (94) extrados on right side, connecting cylinder (95) right-hand member runs through the extrados rightmost end of scissors frame (91) and has locking bolt two (96) at end threaded connection, the outside right-hand member movable sleeve of locking bolt two (96) is equipped with top flat two (97), the right-hand member face of top flat two (97) and the left side face contact of locking bolt two (96), the lower extreme end department of cathode transmission line (7) is located between the right-hand member face of connecting cylinder (95) and the left end face of top flat two (97), the outside of connecting cylinder (95) is established with the inside movable sleeve of spring (93), the input of connecting cylinder (95) is connected to the output electricity of cathode transmission line (7), arc contact plate (94) output on right side is connected to the output electricity of connecting cylinder (95).

6. A potentiostat with impressed current cathodic protection as recited in claim 3, wherein: the scissors frame is characterized in that the right side of the upper end of the front surface of the scissors frame (91) is rotatably connected with a threaded cylinder (10) through a rotating shaft, the left end face of the threaded cylinder (10) is slidably connected with an operating ring (12) through an annular sliding groove, the left side of the upper end of the front surface of the scissors frame (91) is rotatably connected with a screw rod (11) through the rotating shaft, and the right end of the screw rod (11) is in threaded connection with the operating ring (12) and extends to the inside of the threaded cylinder (10).

7. A potentiostat with impressed current cathodic protection as recited in claim 1, wherein: the auxiliary anode (3) is a spherical ferrosilicon auxiliary anode.