CN110079810B - Device convenient for replacing underwater auxiliary anode and replacing method - Google Patents
Device convenient for replacing underwater auxiliary anode and replacing method Download PDFInfo
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- CN110079810B CN110079810B CN201910500860.4A CN201910500860A CN110079810B CN 110079810 B CN110079810 B CN 110079810B CN 201910500860 A CN201910500860 A CN 201910500860A CN 110079810 B CN110079810 B CN 110079810B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
Abstract
The invention belongs to the technical field of corrosion prevention of underwater steel members, and discloses a device and a method for replacing an underwater auxiliary anode, wherein the device for replacing the underwater auxiliary anode comprises a waterproof cable, a lifting mechanism for lifting the waterproof cable and a plurality of anodes, wherein the anodes are alternately and detachably fixed on the waterproof cable and electrically connected with internal wires of the waterproof cable, and the waterproof cable is detachably fixed at the lifting end of the lifting mechanism. The invention has the advantages of convenient anode replacement and convenient maintenance.
Description
Technical Field
The invention relates to the technical field of corrosion prevention of underwater steel members, in particular to a device convenient for replacing an auxiliary anode and a replacing method.
Background
In the construction of an underground oil storage, the service life of steel structures in an oil inlet and outlet vertical shaft of the underground oil storage is generally more than 60 years, and the oil inlet and outlet vertical shaft is very deep and often reaches 100m or even 200m, so that the anti-corrosion protection of the steel structures in the vertical shaft has very high requirements.
At present, a sacrificial anode cathodic protection method and a forced current cathodic protection method are generally adopted for corrosion prevention of steel buildings, but the sacrificial anode cathodic protection method cannot protect the steel structures in the vertical shaft for the period required by the design, so the forced current cathodic protection method is generally adopted for corrosion prevention of the steel structures in the vertical shaft. Although the forced current cathodic protection method can reach the design required age of steel structures in a vertical shaft, the forced current cathodic protection method has the problem that an auxiliary anode is difficult to replace, and the auxiliary anode is an important component in the forced current cathodic protection method and forms an electric loop with media (soil and water), a power supply and the steel structures by consuming the auxiliary anode, so that the aim of protecting equipment is fulfilled. Because the auxiliary anode is located in the shaft, water in the shaft needs to be pumped out during replacement, the replacement operation can be carried out, the replacement operation is complicated and tedious, the space in the shaft is limited, the operation is not only inconvenient, and certain potential safety hazards also exist, so that how to rapidly and conveniently replace the auxiliary anode becomes a problem to be solved urgently.
Disclosure of Invention
In order to solve the problem that the auxiliary anode is inconvenient to replace by adopting a forced current cathodic protection method in the conventional vertical shaft, the invention aims to provide a device and a method for replacing the auxiliary anode conveniently and conveniently, wherein the device and the method can replace the auxiliary anode quickly and conveniently.
The technical scheme adopted by the invention is as follows:
an apparatus for facilitating replacement of an underwater auxiliary anode: including waterproof cable, the elevating system and a plurality of positive pole that are used for going up and down waterproof cable, wherein, positive pole spaced and detachably fix waterproof cable is last to the electricity is connected waterproof cable's inside electric wire, waterproof cable detachably fixes elevating system's lift end.
Preferably, the anode is of a tubular structure, a frustum-shaped inner cavity is arranged in the anode, and the inner diameter of the upper end of the frustum-shaped inner cavity is smaller than that of the lower end of the frustum-shaped inner cavity;
the waterproof cable penetrates through the frustum-shaped inner cavity, a copper core is exposed on the waterproof cable and positioned below the anode, the copper core is clamped by a conductive frustum-shaped clamping block, the shape of the conductive frustum-shaped clamping block is the same as that of the frustum-shaped inner cavity, the inner diameter of the upper end of the conductive frustum-shaped clamping block is larger than that of the upper end of the frustum-shaped inner cavity, and the inner diameter of the lower end of the conductive frustum-shaped clamping block is smaller than that of the lower end of the frustum-shaped inner cavity;
the conductive frustum-shaped clamping block enters the frustum-shaped inner cavity under the driving of the waterproof cable and is clamped and embedded in the frustum-shaped inner cavity, and the anode is detachably fixed on the waterproof cable through the mutual matching of the conductive frustum-shaped clamping block and the frustum-shaped inner cavity.
Preferably, the conductive frustum-shaped fixture block comprises a first fixture block and a second fixture block, wherein a first clamping groove is vertically formed in the inner wall surface of the first fixture block, bolt holes are formed in the left side and the right side of the first clamping groove, a second clamping groove symmetrical to the first clamping groove is formed in the inner wall surface of the second fixture block, and bolts corresponding to the bolt holes in one-to-one mode are arranged on the two sides of the second clamping groove;
and after the bolt is inserted into the bolt hole, the first clamping block and the second clamping block fix the copper core in the first clamping groove and the second clamping groove.
Specifically, waterproof sealant is filled in the frustum-shaped inner cavity.
Preferably, the lifting mechanism comprises a brake pulley, a fixed pulley and a rope;
the braking pulley is fixed on a shaft mouth of the shaft through a support, the fixed pulley is fixed on a sealing plug in the shaft through a positioning block, the rope forms a closed loop after passing through a groove of the braking pulley and a groove of the fixed pulley and is in a tensioning state, and the waterproof cable is fixed on the rope through a clamp.
Specifically, a rotating handle is arranged at the axis of the braking pulley.
Specifically, the fixed pulley is made of a non-metal corrosion-resistant material.
Specifically, the positioning block is made of corrosion-resistant concrete, and epoxy resin paint is coated on the surface of the positioning block.
The invention also provides another technical scheme
A method for replacing a device for replacing an underwater auxiliary anode conveniently comprises the following steps:
s101, disconnecting the waterproof cable from a power supply, starting the lifting device, lifting the waterproof cable to the ground surface through the lifting device, taking the waterproof cable off the lifting end of the lifting device, and then closing the lifting device;
s102, taking the anode off the waterproof cable, and fixing the new anode on the new waterproof cable at intervals in a detachable manner;
s103, detachably fixing a new waterproof cable at the lifting end of the lifting device, starting the lifting device, and putting the waterproof cable into the shaft until the anode is completely submerged by water;
s104, closing the lifting device, and connecting the waterproof cable with the power supply.
The invention has the beneficial effects that:
(1) the anode is detachably fixed on the waterproof cable, and the waterproof cable is detachably fixed at the lifting end of the lifting mechanism. Through the above design, when the positive pole needs to be maintained or changed, after the waterproof cable is disconnected with the electric connection of power, only need through starting elevating system, the lift end through elevating system drives waterproof cable and rises, when waterproof cable and positive pole promote to above the earth's surface, pull down waterproof cable from elevating system's lift end, then close elevating system, pull down the positive pole from waterproof cable again, thereby can maintain positive pole and waterproof cable, also can change positive pole and waterproof cable, after the maintenance or change finish, fix positive pole detachable on waterproof cable again, fix waterproof cable detachable at elevating system's lift end, start elevating system at last, put down waterproof cable and positive pole in the shaft, can accomplish the maintenance or the change to positive pole and waterproof cable. Through the design, the maintenance and the replacement of the anode are convenient, and the problem that the conventional auxiliary anode is difficult to replace is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the device for facilitating replacement of the underwater auxiliary anode provided by the invention.
Fig. 2 is a schematic structural diagram of an anode provided by the present invention.
Fig. 3 is a schematic structural diagram of the first latch provided in the present invention.
Fig. 4 is a cross-sectional view of the first latch according to the present invention.
Fig. 5 is a schematic structural diagram of a second latch provided in the present invention.
Fig. 6 is a sectional view of a second latch provided in the present invention.
In the above figures, 1-waterproof cable; 2-an anode; 3-a frustum-shaped inner cavity; 4-a copper core; 5-conductive frustum-shaped fixture block; 501-a first fixture block; 502-a second cartridge; 501 a-a first card slot; 502 a-a second card slot; 501 b-bolt hole; 502 b-a latch; 6-a clamping groove; 7-braking the pulley; 8-a fixed pulley; 9-a rope; 10-a scaffold; 11-positioning blocks; 12-a fixture; 13-rotating the handle.
Detailed Description
The invention will be further illustrated with reference to specific examples. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
The term "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.
Example one
As shown in fig. 1 to 6, the device convenient for replacing the underwater auxiliary anode provided by this embodiment includes a waterproof cable 1, a lifting mechanism for lifting the waterproof cable 1, and a plurality of anodes 2, wherein the anodes 2 are fixed to the waterproof cable 1 at intervals and detachably and electrically connected to an internal wire of the waterproof cable 1, and the waterproof cable 1 is fixed to a lifting end of the lifting mechanism detachably.
As shown in fig. 1, the following describes the specific structure of the device for facilitating the replacement of the underwater auxiliary anode:
the anode 2 is used as a protective electrode of a steel structure in the shaft and is used for protecting the steel structure from being corroded; the waterproof cable 1 is used for fixing the anode 2, and is connected with a power supply to be electrically connected with the anode 2, so that current flows into electrolyte through the surface of the anode 2, and then reaches the surface of protected metal (namely a steel structure) through the electrolyte, and finally the purpose of inhibiting the corrosion of the steel structure in the shaft is achieved.
The lifting mechanism is used for lifting the waterproof cable 1, the anode 2 is detachably fixed on the waterproof cable 1, and the waterproof cable 1 is detachably fixed at the lifting end of the lifting mechanism. Through the design, the lifting mechanism can realize the lifting of the waterproof cable 1 in the vertical shaft.
When needing to be changed or maintain positive pole 2 and waterproof cable 1, only need break off the electricity of waterproof cable 1 and power earlier and be connected, then start elevating system, make elevating system's lift end drive waterproof cable 1 and rise, when waterproof cable 1 and positive pole 2 rose above the earth's surface, pull down waterproof cable 1 from elevating system's lift end, then close elevating system, pull down positive pole 2 from waterproof cable 1 again, can realize the maintenance or the change to positive pole 2 and waterproof cable 1.
After maintenance or replacement is finished, the anode 2 is detachably fixed on the waterproof cable 1, then the waterproof cable 1 is detachably fixed at the lifting end of the lifting mechanism, the lifting mechanism is started, the waterproof cable 1 and the anode 2 are placed in the shaft until the anode 2 is completely submerged in water, the lifting mechanism is closed, and finally the waterproof cable 1 is connected with the power supply to be electrically connected, so that the anode 2 can normally work, and the purpose of protecting steel structures is achieved.
Through the design, the maintenance and the replacement of the anode 2 and the waterproof cable 1 are extremely convenient, and when the maintenance and the replacement are carried out, water in the shaft does not need to be pumped out firstly, and then the anode 2 enters the shaft for operation manually, so that the convenience of the maintenance and the replacement of the anode 2 is greatly improved.
In this embodiment, the anode 2 may be, but is not limited to, a mixed oxide anode, a silicon iron anode, or a lead anode.
Preferably, the anode 2 is of a tubular structure, a frustum-shaped inner cavity 3 is arranged in the anode, and the inner diameter of the upper end of the frustum-shaped inner cavity 3 is smaller than that of the lower end of the frustum-shaped inner cavity.
The conductive frustum-shaped clamping block 5 enters the frustum-shaped inner cavity 3 under the driving of the waterproof cable 1 and is clamped and embedded in the frustum-shaped inner cavity 3, and the anode 2 is detachably fixed on the waterproof cable 1 through the mutual matching of the conductive frustum-shaped clamping block 5 and the frustum-shaped inner cavity 3.
Specifically, the conductive frustum-shaped fixture block 5 includes a first fixture block 501 and a second fixture block 502, wherein a first clamping groove 501a is vertically formed in an inner wall surface of the first fixture block 501, bolt holes 501b are formed in left and right sides of the first clamping groove 501a, a second clamping groove 502a symmetrical to the first clamping groove 501a is formed in an inner wall surface of the second fixture block 502, and bolts 502b corresponding to the bolt holes 501b in one-to-one positions are formed in two sides of the second clamping groove 502 a.
After the plug 502b is inserted into the plug hole 501b, the first latch 501 and the second latch 502 fix the copper core 4 in the first engaging groove 501a and the second engaging groove 502 a.
Specifically, the frustum-shaped inner cavity 3 is filled with waterproof sealant.
As shown in FIGS. 2 to 6, the following description will be made of the specific structure of the anode 2:
the inside frustum type inner chamber 3 that is equipped with of positive pole 2, and the upper end internal diameter of frustum type inner chamber 3 is less than the lower extreme internal diameter, and in this embodiment, the reference direction of the upper end of frustum type inner chamber 3 and lower extreme is waterproof cable 1's lifting direction, vertical direction promptly.
When fixing the anode 2 on the waterproof cable 1, because the anode 2 is provided with a plurality of anodes, when fixing, the waterproof cable 1 passes through the frustum-shaped inner cavity 3 in each anode 2, and thus, the plurality of anodes 2 can be all connected to the waterproof cable 1 in series. Then peel off the skin of the partial cable that is located on waterproof cable 1 and below positive pole 2 again, expose inside copper core 4, with the centre gripping of wire frustum type fixture block 5 with copper core 4 that exposes, finally, pulling waterproof cable 1 towards frustum type inner chamber 3 upper end direction, and then in drawing electrically conductive frustum type fixture block 5 into frustum type inner chamber 3, because the internal diameter of frustum type inner chamber 3 upper end is less than the lower extreme internal diameter, so electrically conductive frustum type fixture block 5 can the inlay card in frustum type inner chamber 3, under the effect of positive pole 2 gravity, can firm chucking in frustum type inner chamber 3 to realize the fixed of positive pole 2. And the current can be transmitted to the surface of the anode 2 through the copper core 4 and the lead frustum-shaped fixture block 5, then enters the electrolyte and finally reaches the surface of the protected metal, so that the purpose of protecting the metal from corrosion is achieved.
When the anode 2 needs to be detached from the waterproof cable 1, the waterproof cable 1 is pulled towards the lower end of the frustum-shaped inner cavity 3, the wire frustum-shaped fixture block 5 is pulled out of the frustum-shaped inner cavity 3, then the conductive frustum-shaped fixture block 5 is taken down from the copper core, and finally the waterproof cable 1 is pulled out of the frustum-shaped inner cavity 3, so that the anode 2 can be detached. Through the design, the replacement or maintenance of the anode 2 and the waterproof cable 1 can be facilitated.
What is optimized in the above scheme is that the conductive frustum-shaped fixture block 5 is composed of a first fixture block 501 and a second fixture block 502, that is, when the copper core 4 needs to be clamped, the copper core 4 only needs to be placed into the first clamping groove 501a on the first fixture block 501, and then the plug 502b on the second fixture block 502 is inserted into the plug hole 501a on the first fixture block 501a, so that the copper core 4 can be clamped. When the copper core 4 needs to be taken out, the plug 502b is directly pulled out of the plug hole 501b through the second fixture block 502, so that the first fixture block 501 and the second fixture block 502 can be detached, and the copper core 4 can be taken out. Through the design, the conductive frustum-shaped fixture block 5 and the copper core 4 can be quickly mounted and dismounted, and convenience in replacement and maintenance is improved.
In the above scheme, it can be further optimized that the frustum-shaped inner cavity 3 is filled with a waterproof sealant to achieve a waterproof sealing effect, in this embodiment, the waterproof sealant is epoxy resin, for example.
Preferably, the hoisting mechanism comprises a brake pulley 7, a crown pulley 8 and a rope 9.
The braking pulley 7 is fixed on a shaft mouth of a shaft through a support 10, the fixed pulley 8 is fixed on a sealing plug in the shaft through a positioning block 11, the rope 9 forms a closed loop after passing through a groove of the braking pulley 7 and a groove of the fixed pulley 8 and is in a tensioning state, and the waterproof cable 1 is fixed on the rope 9 through a clamp 12.
Specifically, a rotating handle 13 is arranged at the axis of the braking pulley 7.
As shown in fig. 1, the following describes a specific structure of the lifting mechanism:
the braking pulley 7 is fixed on the shaft inlet through a bracket 10, the fixed pulley 8 is fixed on a sealing plug in the shaft through a positioning block 11, and the rope 9 is wound in the grooves of the braking pulley 7 and the fixed pulley 8 to form a closed loop and is in a tensioning state. Through above-mentioned design, can rotate brake pulley 7, and then drive rope 9 and rotate between brake pulley 7 and fixed pulley 8, and then make waterproof cable 1 who binds on rope 9 rise or descend, realized that waterproof cable 1 takes out the shaft or puts into the function of shaft, finally realize the change or the maintenance of waterproof cable 1 and positive pole 2.
When the waterproof cable 1 and the anode 2 need to be lifted out of the vertical shaft, firstly, the electric connection between the waterproof cable 1 and a power supply is disconnected, then, a brake valve of the brake pulley 7 is loosened, the brake pulley 7 is rotated to drive the rope 9 to rotate, further, the waterproof cable 1 is driven to ascend, when the anode 2 ascends to the ground surface, the brake pulley 7 is rotated while the clamps 12 are taken down until all the clamps 12 are taken down, after the binding between the waterproof cable 1 and the rope 9 is released, the brake valve of the brake pulley 7 is opened to stop the rotation of the brake pulley 7, and finally, the waterproof cable 1 and the rope 9 are quickly disassembled.
When the maintenance or replacement of the anode 2 and the waterproof cable 1 is completed, the lowermost end of the waterproof cable 1 is bound to the rope 9 by the clamp 12, the brake valve of the brake pulley 7 is released, the brake pulley 7 is rotated to rotate the rope 9, so that the waterproof cable 1 is driven to descend, the brake pulley 7 is rotated while the unfixed waterproof cable 1 is fixed on the rope 9 by the clamp 12, the waterproof cable 1 and the anode 2 are put into the shaft, when the anode 2 is completely immersed into water, the brake valve of the brake pulley 7 is opened, and the waterproof cable 1 is electrically connected with the power supply.
What is further optimized in the above scheme is that the rotating handle 13 is arranged at the axis of the brake pulley 7, so that the brake pulley 7 can be conveniently rotated by a worker, and the use convenience is improved. In this embodiment, a stepping motor can also be used to drive the brake pulley 7 to rotate, and the effect is the same as that of manually rotating the brake pulley 7.
In the present embodiment, fixture 12 is a conventional device, and in the present embodiment, it may be, but is not limited to: a flange fixture.
In this embodiment, the example rope 9 is a corrosion-resistant non-metallic rope, such as nylon rope.
In this embodiment, the rope 9 can be replaced, when the anode 2 is overhauled, if the rope 9 needs to be replaced, after the anode 2 and the waterproof cable 1 are removed, one end of the new rope 9 is tightly wound on the old rope 9 by a thin rope, then the rotating handle 13 is rotated until the new rope 9 is wound on the braking pulley 7 and the fixed pulley 8 for a circle, then the two ends of the new rope 9 are knotted to form a closed loop, and finally the old rope 9 is removed to complete the replacement.
Specifically, the fixed pulley 8 is made of a non-metallic corrosion-resistant material. Through the design, the fixed pulley 8 can be prevented from being corroded, and the service life of the fixed pulley 8 is prolonged. In the present embodiment, the crown block 8 is exemplified as being made of a ceramic material.
Specifically, the positioning block 11 is made of corrosion-resistant concrete, and an epoxy resin coating is coated on the surface of the positioning block. Through the design, the positioning block 11 can be prevented from being corroded, and the service life of the positioning block 11 is prolonged. In this embodiment, the thickness of the epoxy coating is exemplified to be between 60mm and 80 mm.
In summary, the device convenient for replacing the underwater auxiliary anode provided by the embodiment has the following technical effects:
(1) according to the invention, the anode 2 is detachably fixed on the waterproof cable 1, and the waterproof cable 1 is detachably fixed at the lifting end of the lifting mechanism. Through the design, when the anode 2 needs to be maintained or replaced, after the waterproof cable 1 is disconnected from the power supply, the waterproof cable 1 is driven to ascend through the ascending and descending end of the ascending and descending mechanism only by starting the ascending and descending mechanism, when the waterproof cable 1 and the anode 2 are lifted above the ground surface, the waterproof cable 1 is detached from the lifting end of the lifting mechanism, then the lifting mechanism is closed, and the anode 2 is detached from the waterproof cable 1, so that the anode 2 and the waterproof cable 1 can be maintained, the anode 2 and the waterproof cable 1 can be replaced, after the maintenance or the replacement is finished, and then the anode 2 is detachably fixed on the waterproof cable 1, the waterproof cable 1 is detachably fixed at the lifting end of the lifting mechanism, finally the lifting mechanism is started, the waterproof cable 1 and the anode 2 are put down in the shaft, and then the maintenance or the replacement of the anode 2 and the waterproof cable 1 can be completed. Through the design, the maintenance and the replacement of the anode 2 are convenient, and the problem of difficulty in replacing the traditional auxiliary anode is avoided.
Example two
The present embodiment is different from the first embodiment in that the present embodiment provides a method of replacing the anode 2.
The method for replacing the apparatus for replacing underwater auxiliary anode provided by the embodiment is used for replacing the apparatus for replacing underwater auxiliary anode claimed in any one of the preceding claims, and comprises the following steps:
s101, disconnecting the waterproof cable 1 from the power supply, starting the lifting device, lifting the waterproof cable 1 to the ground surface through the lifting device, taking the waterproof cable 1 down from the lifting end of the lifting device, and then closing the lifting device.
S102, the anode 2 is taken down from the waterproof cable 1, and then a new anode 2 is fixed on the new waterproof cable 1 at intervals and detachably.
S103, detachably fixing the new waterproof cable 1 at the lifting end of the lifting device, starting the lifting device, and putting the waterproof cable 1 into the shaft until the anode 2 is completely submerged by water.
S104, closing the lifting device, and connecting the waterproof cable 1 with the power supply.
The method for replacing the anode 2 will be described in detail below with reference to specific components in the first embodiment:
the first step is as follows: the electric connection between the waterproof cable 1 and the power supply is disconnected, then the brake valve of the brake pulley 7 is loosened, the rotating handle 13 is rotated, after the anode 2 and the waterproof cable 1 rise to the ground surface, the brake pulley 7 is rotated while the clamps 12 are removed until all the clamps 12 are removed, and after the binding between the waterproof cable 1 and the rope 9 is released, the brake valve of the brake pulley 7 is opened.
The second step is that: pulling the waterproof cable 1 towards the lower end direction of the frustum-shaped inner cavity 3, further pulling the conductive frustum-shaped fixture block 5 out of the frustum-shaped inner cavity 3, then taking down the conductive frustum-shaped fixture block 5 from the copper core 4, and finally replacing the anode 2 and the waterproof cable 1.
The third step: after the replacement is finished, the new waterproof cable 1 sequentially penetrates through each frustum-shaped inner cavity 3, all the anodes 2 are connected in series on the waterproof cable 1, the waterproof cable 1 below each anode 2 is peeled, the copper core 4 inside the waterproof cable is exposed, each copper core 4 is clamped by the conductive frustum-shaped clamping block 5, and finally the waterproof cable 1 is pulled towards the upper end direction of each frustum-shaped inner cavity 3, so that the conductive frustum-shaped clamping block 5 is clamped and embedded in the frustum-shaped inner cavity 3.
The fourth step: after the clamping and embedding are finished, the bottom end of the waterproof cable 1 is fixed on the rope 9 through the clamp 12, then the brake valve of the brake pulley 7 is loosened, the rotating handle 13 is rotated, the waterproof cable 1 and the anode 2 are put down to the vertical shaft, the rest of the waterproof cable 1 is fixed on the rope 9 through the clamp 12 while the waterproof cable and the anode 2 are put down until the waterproof cable and the anode are completely installed and the anode 2 are completely immersed in water, and then the brake valve of the brake pulley 7 is opened.
The fifth step: and connecting the waterproof cable 1 with a power supply.
By adopting the method provided by the embodiment, the rapid maintenance or replacement of the anode 2 and the waterproof cable 1 can be realized.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (8)
1. The utility model provides a device convenient to change supplementary positive pole under water which characterized in that: the waterproof cable comprises a waterproof cable (1), a lifting mechanism for lifting the waterproof cable (1) and a plurality of anodes (2), wherein the anodes (2) are fixed on the waterproof cable (1) at intervals in a detachable mode and are electrically connected with internal wires of the waterproof cable (1), and the waterproof cable (1) is fixed at the lifting end of the lifting mechanism in a detachable mode;
the anode (2) is of a tubular structure, a frustum-shaped inner cavity (3) is formed in the anode, and the inner diameter of the upper end of the frustum-shaped inner cavity (3) is smaller than that of the lower end of the frustum-shaped inner cavity;
the waterproof cable (1) penetrates through the frustum-shaped inner cavity (3), a copper core (4) is exposed on the waterproof cable (1) and positioned below the anode (2), the copper core (4) is clamped by a conductive frustum-shaped clamping block (5), the conductive frustum-shaped clamping block (5) is the same as the frustum-shaped inner cavity (3) in shape, the inner diameter of the upper end of the conductive frustum-shaped clamping block (5) is larger than the inner diameter of the upper end of the frustum-shaped inner cavity (3), and the inner diameter of the lower end of the conductive frustum-shaped clamping block (5) is smaller than the inner diameter of the lower end of the frustum-shaped inner cavity (3);
the conductive frustum-shaped clamping block (5) enters the frustum-shaped inner cavity (3) under the driving of the waterproof cable (1) and is clamped and embedded in the frustum-shaped inner cavity (3), and the anode (2) is detachably fixed on the waterproof cable (1) through the mutual matching of the conductive frustum-shaped clamping block (5) and the frustum-shaped inner cavity (3).
2. An apparatus for facilitating replacement of an underwater auxiliary anode according to claim 1, wherein: the conductive frustum-shaped fixture block (5) comprises a first fixture block (501) and a second fixture block (502), wherein a first clamping groove (501 a) is vertically formed in the inner wall surface of the first fixture block (501), bolt holes (501 b) are formed in the left side and the right side of the first clamping groove (501 a), a second clamping groove (502 a) symmetrical to the first clamping groove (501 a) is formed in the inner wall surface of the second fixture block (502), and bolts (502 b) corresponding to the bolt holes (501 b) in position one by one are arranged on the two sides of the second clamping groove (502 a);
the first fixture block (501) and the second fixture block (502) fix the copper core (4) in the first clamping groove (501 a) and the second clamping groove (502 a) after the bolt (502 b) is inserted into the bolt hole (501 b).
3. An apparatus for facilitating replacement of an underwater auxiliary anode according to claim 1, wherein: waterproof sealant is filled in the frustum-shaped inner cavity (3).
4. An apparatus for facilitating replacement of an underwater auxiliary anode according to claim 1, wherein: the lifting mechanism comprises a brake pulley (7), a fixed pulley (8) and a rope (9);
the braking pulley (7) is fixed on a shaft mouth of a vertical shaft through a support (10), the fixed pulley (8) is fixed on a sealing plug in the vertical shaft through a positioning block (11), the rope (9) forms a closed loop after passing through a groove of the braking pulley (7) and a groove of the fixed pulley (8) and is in a tensioning state, and the waterproof cable (1) is fixed on the rope (9) through a clamp (12).
5. An apparatus for facilitating replacement of an underwater auxiliary anode according to claim 4, wherein: and a rotating handle (13) is arranged at the axis of the braking pulley (7).
6. An apparatus for facilitating replacement of an underwater auxiliary anode according to claim 4, wherein: the fixed pulley (8) is made of non-metal corrosion-resistant materials.
7. An apparatus for facilitating replacement of an underwater auxiliary anode according to claim 4, wherein: the positioning block (11) is made of corrosion-resistant concrete, and epoxy resin paint is coated on the surface of the positioning block.
8. A method for replacing a device for facilitating replacement of an underwater auxiliary anode, comprising: the device for replacing an underwater auxiliary anode as claimed in any one of claims 1 to 7, comprising the following steps:
s101, disconnecting the waterproof cable (1) from a power supply, starting the lifting mechanism, lifting the waterproof cable (1) to the ground surface through the lifting mechanism, taking the waterproof cable (1) off the lifting end of the lifting mechanism, and then closing the lifting mechanism;
s102, taking the anode (2) down from the waterproof cable (1), and fixing the new anode (2) on the new waterproof cable (1) at intervals in a detachable manner;
s103, detachably fixing the new waterproof cable (1) at the lifting end of the lifting mechanism, starting the lifting mechanism, and putting the waterproof cable (1) into the shaft until the anode (2) is completely submerged by water;
and S104, closing the lifting mechanism, and connecting the waterproof cable (1) with the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492821A (en) * | 2009-02-26 | 2009-07-29 | 中国船舶重工集团公司第七二五研究所 | Anticorrosion method employing metallic oxide anode |
| CN103205754A (en) * | 2012-01-12 | 2013-07-17 | 上海船研环保技术有限公司 | Buoyant suspension type impressed current cathodic protection device |
| CN204298462U (en) * | 2014-12-05 | 2015-04-29 | 青岛钢研纳克检测防护技术有限公司 | Drawing impressed current anode |
| CN107653454A (en) * | 2017-09-29 | 2018-02-02 | 中海石油(中国)有限公司 | A kind of installation method and erecting device of the underwater part of tension type impressed current device |
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2019
- 2019-06-11 CN CN201910500860.4A patent/CN110079810B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492821A (en) * | 2009-02-26 | 2009-07-29 | 中国船舶重工集团公司第七二五研究所 | Anticorrosion method employing metallic oxide anode |
| CN103205754A (en) * | 2012-01-12 | 2013-07-17 | 上海船研环保技术有限公司 | Buoyant suspension type impressed current cathodic protection device |
| CN204298462U (en) * | 2014-12-05 | 2015-04-29 | 青岛钢研纳克检测防护技术有限公司 | Drawing impressed current anode |
| CN107653454A (en) * | 2017-09-29 | 2018-02-02 | 中海石油(中国)有限公司 | A kind of installation method and erecting device of the underwater part of tension type impressed current device |
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| CN110079810A (en) | 2019-08-02 |
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