CN105925988A - Corrosion-prevention protection device for tank bottom of storage tank and storage tank - Google Patents
Corrosion-prevention protection device for tank bottom of storage tank and storage tank Download PDFInfo
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- CN105925988A CN105925988A CN201610525062.3A CN201610525062A CN105925988A CN 105925988 A CN105925988 A CN 105925988A CN 201610525062 A CN201610525062 A CN 201610525062A CN 105925988 A CN105925988 A CN 105925988A
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- Prior art keywords
- anode
- steel pipe
- storage tank
- negative electrode
- tank
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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
-
- 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
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention relates to the technical field of storage tank devices, in particular to a corrosion-prevention protection device for the tank bottom of a storage tank and the storage tank. The corrosion-prevention protection device for the tank bottom of the storage tank comprises a potentiostat, at least one anode bed and a collector-shoe gear. The anode bed is fixedly connected to the tank wall of the storage tank and is horizontally arranged in a suspended manner, wherein the connection position is completely sealed. One end of the collector-shoe gear is fixedly connected to the tank wall, and the other end of the collector-shoe gear is fixedly connected to the tank bottom, wherein the connection positions are completely sealed. The anode bed and the collector-shoe gear are electrically connected through the potentiostat and liquid in the storage tank to form a complete closed loop. The storage tank comprises the above corrosion-prevention protection device for the tank bottom of the storage tank. By means of the corrosion-prevention protection device for the tank bottom of the storage tank and the storage tank, the potential distribution of an anode can be more uniform, and voltage and current which are output by the anode can be more stable; and the problem that the liquid in the tank impacts and contaminates the anode is solved, and adverse influences caused by some high-temperature liquid to the anode are eliminated.
Description
Technical field
The present invention relates to storage tank equipment technical field, particularly relate to the anti-corrosion protection dress of a kind of storage tank bottom
Put and storage tank.
Background technology
Storage tank is very important storage facility, and storage tank bottom is easily corroded, tank bottoms etching problem
Not only result in the increase of tank bottoms thinning and security risk, and substantial amounts of corrosion thing the most usually can be dirty
Dye storage material mass therein.Bottom corrosion occur unlike atmospheric corrosion it can be seen that
Equipment and adnexa on, occur to be typically the most hidden during leakage, and be not easy to arouse attention.
Often deposit chemical substance due to storage tank, once leakage, consequence is by hardly imaginable.So, Tank
The end, needs to increase anti-corrosive apparatus.
At present, having a kind of additional electric protection protection device (seeing Fig. 1), it is mainly by potentiostat
1A, anode 22A, reference electrode 34A, cathodic protection station point 35A and energising point 36A composition.Wherein,
Anode is directly to enter storage tank by the loophole (with the loophole of manhole cover) of the tank deck of storage tank 4A
The inside that 4A is, and vertically fix；The end of energising point 36A, cathodic protection station point 35A and storage tank 4A
Portion connects, the vicinity of the cathodic protection station point 35A that reference electrode 34A is placed in outside tank.
But, owing to the anode of additional electric protection protection device is vertically to be fixed in storage tank, so
Causing anode potential skewness, the output voltage of potentiostat and electric current are unstable, and change of fluctuating
Changing difference too big, protected effect is poor；The impact of pot liquid, can make anode and be connected with anode
The cable connect is damaged, and then affects the protected effect of whole device；Anode is also highly prone in pipe
The impact of some high-temp liquid, and the pollution that in tank, it is caused by stored substance, cause it cannot be just
Often work, protected effect declines.
Therefore, the above-mentioned technological deficiency of traditional storage tank bottom additional electric protection protection device how is overcome
It is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
It is an object of the invention to provide antisepsis protector and the storage tank of a kind of storage tank bottom, to solve
The problems referred to above.
In order to achieve the above object, the technical scheme is that and be achieved in that:
The invention provides the antisepsis protector of a kind of storage tank bottom, including potentiostat, conflux dress
Put and at least one anode bed.
Wherein, described anode bed includes anode steel pipe, anode and support；Described anode berth in water and
Below the demarcation line of oil.
Described anode steel pipe is fixedly connected on the tank skin of storage tank, and junction seals；Described anode steel
The head end of pipe completely encloses, and tail end is connected with positive pole sealing device；Arrange on described positive pole sealing device
There is through hole；Described through hole is for placing by the anode cable worn outside tank to tank；Described anode steel pipe water
Flat unsettled placement；The pipe basal surface of described anode steel pipe is provided with multiple drain hole；Described support is fixed
It is arranged on the inside of described anode steel pipe；Described anode lies in a horizontal plane in described support；Described anode
Insulate between steel pipe and described anode；Described anode electrically connects with described potentiostat.
Described collector-shoe gear includes the first negative electrode steel pipe, the second negative electrode steel pipe, the 3rd negative electrode steel pipe and interior
Portion's reference electrode.
Described first negative electrode steel pipe is fixedly connected on the tank skin of described storage tank, and junction seals；Institute
The tail end stating the first negative electrode steel pipe is connected with cathode sealing means；It is provided with on described cathode sealing means
Through hole；Described through hole is for placing by the cathode cable worn outside tank to tank；Described second negative electrode steel pipe
Lower end be fixedly installed on the tank bottoms of described storage tank, and both junctions seal and arrange；Described second is cloudy
The upper end of pole steel pipe connects with the head end of described first negative electrode steel pipe；The upper end of described 3rd negative electrode steel pipe
Connect near the part of described second negative electrode steel pipe with described first negative electrode steel pipe, and both connectivity parts
It is provided with sealing block；The lower ending opening of described 3rd negative electrode steel pipe is arranged；The tank bottoms setting of described storage tank
There are cathodic protection station point and energising point；It is cloudy that described cathodic protection station point and described energising point are respectively positioned on described second
The inside of pole steel pipe；Described cathodic protection station point and described energising point all electrically connect with described potentiostat；
Described internal reference electrode is fixedly installed on the inside of described 3rd negative electrode steel pipe；Described internal reference electricity
The upper end of pole is electrically connected with described potentiostat by the first wire.
Preferably, as a kind of embodiment, described anode bed is multiple；Multiple described anode beds
It is evenly distributed on the tank skin of described storage tank.
Preferably, as a kind of embodiment, the head end of described anode steel pipe is hemispherical configuration.
Preferably, as a kind of embodiment, described collector-shoe gear also includes testing probe and outside
Reference electrode；The upper end of described test probe is fixedly installed on the inside of described 3rd negative electrode steel pipe, under
End is positioned at the outside of described 3rd negative electrode steel pipe；Described outside reference electrode is positioned at the outside of described storage tank；
Described test probe is connect with described outside reference electrode electrical by the second wire.
Preferably, as a kind of embodiment, described first negative electrode steel pipe be internally provided with test
Guide pipe；Described second wire is through the inside of described test guide pipe.
Preferably, as a kind of embodiment, described positive pole sealing device includes that anode with holes is close
Packing magazine and anode gland-type switch；Described anode gland-type switch and described anode seal stuffing box
Removably connect；Described cathode sealing means includes negative electrode sealed stuffing box and negative electrode gland-type switch；
Described negative electrode gland-type switch removably connects with described negative electrode sealed stuffing box.
Preferably, as a kind of embodiment, described internal reference electrode is tank bottoms with described storage tank
Between distance more than 300mm；Described test probe and described storage tank tank bottoms between distance be more than
150mm。
Preferably, as a kind of embodiment, a diameter of 76mm of described anode steel pipe, thickness is
4mm, a length of 1200mm；Described anode is solid cylinder structural member, and its a diameter of 25mm,
A length of 1000mm；A diameter of 76mm of described first negative electrode steel pipe, thickness is 4mm.
Preferably, as a kind of embodiment, a diameter of 150mm of described second negative electrode steel pipe, thickness
Degree is 5mm；Distance between described energising point and described cathodic protection station point is 120mm.
Accordingly, the embodiment of the present invention additionally provides a kind of storage tank, and it includes above-mentioned storage tank bottom
Antisepsis protector.
Compared with prior art, this have the advantage that:
The antisepsis protector of a kind of storage tank bottom that the present invention provides and storage tank, analyze above-mentioned Tank
The antisepsis protector at the end and the primary structure of storage tank understand: it is mainly by potentiostat, collector-shoe gear
Form with at least one anode bed.
Topology layout and the annexation of above-mentioned main device are as follows: anode bed is fixedly connected on storage tank
On tank skin and be horizontally disposed with；Collector-shoe gear one end is fixedly connected on tank skin, and one end is fixedly connected on tank
The end；Anode bed is connected by the liquid electric in potentiostat and storage tank with collector-shoe gear.
In said structure, anode bed includes anode steel pipe, anode and support；Collector-shoe gear includes
One negative electrode steel pipe, the second negative electrode steel pipe, the 3rd negative electrode steel pipe, internal reference electrode, cathodic protection station point
With energising point.
Anode steel pipe is fixedly connected on the tank skin of storage tank, and junction seals, and makes the pot liquid will not
From the outside sepage in the junction of tank skin Yu anode steel pipe.The head end of anode steel pipe is positioned at storage tank, for protecting
Card pot liquid does not enters inside it from the head end of anode steel pipe, so head end need to completely enclose；Anode
The tail end of steel pipe needs to load and unload anode, so connected positive pole sealing device should be opened and close
Close two states.When opening, the ft connection of anode steel pipe and storage tank, can to anode therein and
Miscellaneous part checks and dismantles；During Guan Bi, anode steel pipe and the external environment of storage tank, just it is in
Often duty.Hole on positive pole sealing device can make anode cable and the storage tank of anode steel duct
Outside potentiostat connects.This ensures that there inspection and maintenance timely to anode bed.
It addition, anode steel pipe level is fixedly installed, and anode just can lie in a horizontal plane in anode steel pipe,
The anode electrically connected with potentiostat Potential distribution in storage tank so can be made uniform, potentiostat
Output voltage and current stabilization, it is to avoid fluctuation.
It addition, pot liquid can penetrate into anode by the drain hole on the pipe basal surface of anode steel pipe
Steel duct, and then and positive contact, it is ensured that the electric current being transmitted on anode by potentiostat can lead to
Cross the liquid medium in tank and be delivered to tank bottoms, polarize to tank bottoms, returned by collector-shoe gear the most again
To potentiostat, form closed-loop path；In order to ensure to insulate, at anode between anode steel pipe and anode
Being to be fixedly installed support on steel pipe, anode is placed in the bracket.It will be apparent that in the technical program,
The existence of anode steel pipe makes anode directly to be impacted by pot liquid, and then extends anode
Service life.Meanwhile, anode steel pipe it also avoid pot liquid to the pollution of anode and some height
The impact that anode is caused by geothermal liquid, and then ensure the normal operating conditions of anode, prevent the anode cannot
Discharge electronics and cause the effect that cannot protect negative electrode.
In said structure, collector-shoe gear includes the first negative electrode steel pipe, the second negative electrode steel pipe, the 3rd the moon
Pole steel pipe and internal reference electrode.
First negative electrode steel pipe is fixedly connected on the tank skin of storage tank, and junction seals, also for
Ensure that the liquid in tank will not flow out from the junction of tank skin and the first negative electrode steel pipe.First negative electrode steel pipe
Tail end be connected with cathode sealing means, cathode sealing means also has opening and closing two states；
When opening, negative electrode steel pipe and the ft connection of storage tank, parts therein can be checked and dismantle；
During Guan Bi, anode steel pipe and the external environment of storage tank, it is in normal operating conditions.Cathode sealing means
On hole the cathode cable in the first negative electrode steel pipe can be connected with potentiostat.First negative electrode
The head end of steel pipe and the upper end connection of the second negative electrode steel pipe, and the lower end of the second negative electrode steel pipe is solid with tank bottoms
Fixed connect, so, be arranged on the second negative electrode steel pipe inside and be positioned at tank bottoms cathodic protection station point and
Energising point, and it is fixedly installed on the reference electrode in the 3rd negative electrode steel pipe, all can realize and constant potential
The electrical connection of instrument.
The lower end of the second negative electrode steel pipe is arranged with tank bottoms sealing, and the 3rd negative electrode steel pipe and the second negative electrode
The connectivity part of steel pipe seals and arranges, and all ensure that pot liquid may not flow into the first negative electrode steel pipe and second
In negative electrode steel pipe, and then ensure that the wire being located therein will not be extended by the corroded by liquid in tank
The service life of wire；3rd negative electrode steel pipe is near the second negative electrode steel pipe so that be in the 3rd cathode steel
Internal reference electrode in pipe and test probe can apart from energising point closer to, it is ensured that be supplied to constant potential
The signal of instrument is truer；The lower ending opening of the 3rd negative electrode steel pipe is so that the inside that sets within it
Reference electrode contacts with pot liquid, so internal reference electrode and tank bottoms between formed conductive path；
Internal reference electrode electrically connects with potentiostat also by the first wire, on the one hand can be for automatically controlling
Potentiostat control signal is provided, with the current potential of regulation energising point, make tank bottoms to be in good protection
State；On the other hand protected tank bottoms current potential, monitoring and protecting effect can be measured；First wire
Can be through the sealing device the first negative electrode steel pipe and the 3rd negative electrode steel pipe, sealing device will not be because of
It is that penetrating of the first wire loses sealing function.
Therefore, the antisepsis protector of the storage tank bottom that the present invention provides and storage tank, by increasing steel pipe
And make rational planning for steel pipe position and connected mode so that the voltage and current of anode output is more stable；
Meanwhile, improve pot liquid to the impact of anode and pollution problem, and eliminate some high-temp liquids
The adverse effect that anode is caused；To sum up, the present invention provide storage tank bottom antisepsis protector and
Storage tank, has all many technical advantages.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, under
The accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described by face,
It should be evident that the accompanying drawing in describing below is some embodiments of the present invention, general for this area
From the point of view of logical technical staff, on the premise of not paying creative work, it is also possible to obtain according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is antisepsis protector and the structural representation of storage tank of storage tank bottom in prior art；
The antisepsis protector of the storage tank bottom that Fig. 2 provides for the embodiment of the present invention and the vertical view knot of storage tank
Structure schematic diagram；
The master of the anode bed in the antisepsis protector of the storage tank bottom that Fig. 3 provides for the embodiment of the present invention
TV structure schematic diagram；
Collector-shoe gear in the antisepsis protector of the storage tank bottom that Fig. 4 provides for the embodiment of the present invention
Main TV structure schematic diagram.
Description of reference numerals in Fig. 1:
1A-potentiostat；22A-anode；34A-reference electrode；
35A-cathodic protection station point；36A-is energized point；4A-storage tank.
Description of reference numerals in Fig. 2, Fig. 3 and Fig. 4:
1-potentiostat；2-anode bed；3-collector-shoe gear；
4-storage tank；5-the first wire；6-the second wire；
7-tests guide pipe；
21-anode steel pipe；22-anode；23-support；
24-positive pole sealing device；25-anode cable；
241-anode seal stuffing box；
211-drain hole；
31-the first negative electrode steel pipe；32-the second negative electrode steel pipe；33-the 3rd negative electrode steel pipe；
34-internal reference electrode；35-cathodic protection station point；36-is energized point；
37-tests probe；38-cathode sealing means；39-cathode cable；
381-negative electrode sealed stuffing box.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described, it is clear that
Described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on this
Embodiment in bright, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly fall into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, " left ",
Orientation or the position relationship of the instruction such as " right ", " vertically ", " level ", " interior ", " outward " are based on attached
Orientation shown in figure or position relationship, be for only for ease of description the present invention and simplify describe rather than
Instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and
Operation, is therefore not considered as limiting the invention.Additionally, term " first ", " second ", "
Three " it is only used for describing purpose, and it is not intended that indicate or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, art
Language " is installed ", " being connected ", " connection " should be interpreted broadly, and connects, also for example, it may be fixing
Can be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；
Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two element internals
Connection.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition
Concrete meaning in invention.
Below by specific embodiment and combine accompanying drawing the present invention is described in further detail.
See Fig. 2, embodiments provide the antisepsis protector of a kind of storage tank bottom, including perseverance
Potentiometer 1, collector-shoe gear 3 and at least one anode bed 2.
Wherein, described anode bed 2 include anode steel pipe 21, anode 22 and support 23 (referring specifically to
Fig. 3)；Described anode bed 2 is positioned at below the demarcation line of water and oil；
Anode steel pipe 21 is fixedly connected on the tank skin of storage tank 4, and junction seals；Described anode steel
The head end of pipe 21 completely encloses, and tail end is connected with positive pole sealing device 24；Described positive pole sealing device
Through hole (not shown) it is provided with on 24；Through hole is for placing by the anode cable worn outside tank to tank
25；The unsettled placement of anode steel pipe 21 level；The pipe basal surface of anode steel pipe 21 is provided with multiple drainage
Hole 211；Support 23 is fixedly installed on the inside of anode steel pipe 21；Anode 22 lies in a horizontal plane in support
In 23；Insulate between anode steel pipe 21 and anode 22；Anode 22 electrically connects with potentiostat 1；
Collector-shoe gear 3 includes first negative electrode steel pipe the 31, second negative electrode steel pipe the 32, the 3rd negative electrode steel pipe 33
With internal reference electrode 34 (referring specifically to Fig. 4)；
First negative electrode steel pipe 31 is fixedly connected on the tank skin of storage tank 4, and junction seals；First is cloudy
The tail end of pole steel pipe 31 is connected with cathode sealing means 38；It is provided with through hole on cathode sealing means 38
(not shown)；Through hole is for placing by the cathode cable 39 worn outside tank to tank；Second cathode steel
The lower end of pipe 32 is fixedly installed on the tank bottoms of storage tank 4, and both junctions seal and arrange；Second negative electrode
The upper end of steel pipe 32 connects with the head end of the first negative electrode steel pipe 31；The upper end of the 3rd negative electrode steel pipe 33 with
First negative electrode steel pipe 31 connects near the part of the second negative electrode steel pipe 32, and both connectivity parts are arranged
There is sealing block (not shown)；The lower ending opening of the 3rd negative electrode steel pipe 33 is arranged；The tank of storage tank 4
The end, is provided with cathodic protection station point 35 and energising point 36；Cathodic protection station point 35 and energising point 36 are respectively positioned on the
The inside of two negative electrode steel pipes 32；Cathodic protection station point 35 and energising point 36 all electrically connect with potentiostat 1；
Internal reference electrode 34 is fixedly installed on the inside of the 3rd negative electrode steel pipe 33；Internal reference electrode 34
Upper end is electrically connected with potentiostat 1 by the first wire 5.
Accordingly, the embodiment of the present invention additionally provides a kind of storage tank, including the anticorrosion of above-mentioned storage tank bottom
Protection device.
Topology layout and the annexation of above-mentioned main device are as follows: anode bed is fixedly connected on storage tank
On tank skin and be horizontally disposed with；Collector-shoe gear one end is fixedly connected on tank skin, and one end is fixedly connected on tank
The end；Anode bed is connected by the liquid electric in potentiostat and storage tank with collector-shoe gear.
In said structure, anode bed includes anode steel pipe, anode and support；Collector-shoe gear includes
One negative electrode steel pipe, the second negative electrode steel pipe, the 3rd negative electrode steel pipe, internal reference electrode, cathodic protection station point
With energising point.
Anode steel pipe is fixedly connected on the tank skin of storage tank, and junction seals, and makes the pot liquid will not
From the outside sepage in the junction of tank skin Yu anode steel pipe.The head end of anode steel pipe is positioned at storage tank, for protecting
Card pot liquid does not enters inside it from the head end of anode steel pipe, so head end need to completely enclose；Anode
The tail end of steel pipe needs to load and unload anode, so connected positive pole sealing device should be opened and close
Close two states.When opening, the ft connection of anode steel pipe and storage tank, can to anode therein and
Miscellaneous part checks and dismantles；During Guan Bi, anode steel pipe and the external environment of storage tank, just it is in
Often duty.Hole on positive pole sealing device can make anode cable and the storage tank of anode steel duct
Outside potentiostat connects.This ensures that there inspection and maintenance timely to anode bed.
It addition, anode steel pipe level is fixedly installed, and anode just can lie in a horizontal plane in anode steel pipe,
The anode electrically connected with potentiostat Potential distribution in storage tank so can be made uniform, potentiostat
Output voltage and current stabilization, it is to avoid fluctuation (i.e. avoid conventional vertical place anode block cause defeated
Go out voltage and the problem of electric current instability).
It addition, pot liquid can penetrate into anode by the drain hole on the pipe basal surface of anode steel pipe
Steel duct, and then and positive contact, it is ensured that the electric current being transmitted on anode by potentiostat can lead to
Cross the liquid medium in tank and be delivered to tank bottoms, polarize to tank bottoms, returned by collector-shoe gear the most again
To potentiostat, form closed-loop path；In order to ensure to insulate, at anode between anode steel pipe and anode
Being to be fixedly installed support on steel pipe, anode is placed in the bracket.It will be apparent that in the technical program,
The existence of anode steel pipe makes anode directly to be impacted by pot liquid, and then extends anode
Service life.Meanwhile, anode steel pipe it also avoid pot liquid to the pollution of anode and some height
The impact that anode is caused by geothermal liquid, and then ensure the normal operating conditions of anode, prevent the anode cannot
Release electronics and causing cannot protect the effect of negative electrode (i.e. by drain hole slowly permeation liquid, permissible
Avoid the pot liquid impact to anode in similar conventional art, it is ensured that anode and being connected with anode
The use safety of the cable connect, serves protective effect；Anode steel pipe can also avoid high-temperature liquid simultaneously
Anode is caused the impact of damage by body).
In said structure, collector-shoe gear includes the first negative electrode steel pipe, the second negative electrode steel pipe, the 3rd the moon
Pole steel pipe and internal reference electrode.
First negative electrode steel pipe is fixedly connected on the tank skin of storage tank, and junction seals, also for
Ensure that the liquid in tank will not flow out from the junction of tank skin and the first negative electrode steel pipe.First negative electrode steel pipe
Tail end be connected with cathode sealing means, cathode sealing means also has opening and closing two states；
When opening, negative electrode steel pipe and the ft connection of storage tank, parts therein can be checked and dismantle；
During Guan Bi, anode steel pipe and the external environment of storage tank, it is in normal operating conditions.Cathode sealing means
On hole the cathode cable in the first negative electrode steel pipe can be connected with potentiostat.First negative electrode
The head end of steel pipe and the upper end connection of the second negative electrode steel pipe, and the lower end of the second negative electrode steel pipe is solid with tank bottoms
Fixed connect, so, be arranged on the second negative electrode steel pipe inside and be positioned at tank bottoms cathodic protection station point and
Energising point, and it is fixedly installed on the reference electrode in the 3rd negative electrode steel pipe, all can realize and constant potential
The electrical connection of instrument.
The lower end of the second negative electrode steel pipe is arranged with tank bottoms sealing, and the 3rd negative electrode steel pipe and the second negative electrode
The connectivity part of steel pipe seals and arranges, and all ensure that pot liquid may not flow into the first negative electrode steel pipe and second
In negative electrode steel pipe, and then ensure that the wire being located therein will not be extended by the corroded by liquid in tank
The service life of wire；3rd negative electrode steel pipe is near the second negative electrode steel pipe so that be in the 3rd cathode steel
Internal reference electrode in pipe and test probe can apart from energising point closer to, it is ensured that be supplied to constant potential
The signal of instrument is truer；The lower ending opening of the 3rd negative electrode steel pipe is so that the inside that sets within it
Reference electrode contacts with pot liquid, so internal reference electrode and tank bottoms between formed conductive path；
Internal reference electrode electrically connects with potentiostat also by the first wire, on the one hand can be for automatically controlling
Potentiostat control signal is provided, with the current potential of regulation energising point, make tank bottoms to be in good protection
State；On the other hand protected tank bottoms current potential, monitoring and protecting effect can be measured；First wire
Can be through the sealing device the first negative electrode steel pipe and the 3rd negative electrode steel pipe, sealing device will not be because of
It is that penetrating of the first wire loses sealing function.
Therefore, the antisepsis protector of the storage tank bottom that the present invention provides and storage tank, by increasing steel pipe
And make rational planning for steel pipe position and connected mode so that the voltage and current of anode output is more stable；
Meanwhile, improve pot liquid to the impact of anode and pollution problem, and eliminate some high-temp liquids
The adverse effect that anode is caused；To sum up, the present invention provide storage tank bottom antisepsis protector and
Storage tank, has all many technical advantages.
Anode bed 2 in the antisepsis protector of the storage tank bottom that the embodiment of the present invention provides has multiple,
Multiple anode beds 2 are radially evenly distributed on the tank skin of storage tank 4 so that the current potential of anode 22 divides
Cloth is more uniform, preferably avoids the existence of current potential blind spot.
Preferably, anode bed 2 is on the same cross section of storage tank 4, and the axis of anode bed 2
Extended line all central shafts with storage tank 4 intersect；Further ensure the uniformity of anode 22 Potential distribution.
Illustrate:
Anode bed has three, and the extended line of they axis intersects at the central shaft of storage tank, and extended line phase
Angle between Hu is 120 degree.
Especially, the head end of anode steel pipe is hemispherical configuration；The surface of hemispherical configuration is arcuation,
So, the radial stress produced its impact due to the liquid in tank can be less, and then can extend
The service life of anode steel pipe.
It addition, collector-shoe gear 3 also includes testing probe 37 and outside reference electrode (not shown)；
The upper end of test probe 37 is fixedly installed on the inside of the 3rd negative electrode steel pipe 33, prevents its liquid in tank
Floating swing under the effect of body, lower end is positioned at the outside of the 3rd negative electrode steel pipe 33, it is to avoid arrange as with
Interfere at the internal reference electrode 34 within the 3rd negative electrode steel pipe 33；Outside reference electrode is positioned at
The outside of storage tank 4, when needs detection protection potential or rectification internal reference electrode 34, by second
Wire 6 is connected with test probe 37 can (referring specifically to Fig. 4).
Especially, being internally provided with of the first negative electrode steel pipe 31 tests guide pipe 7；Second wire 6 is worn
Cross the inside of test guide pipe 7；Test guide pipe 7 can make the position of the second wire 6 be fixed,
Will not because of some uncontrollable reasons, and go to elsewhere, it is to avoid need itself and outside reference electricity
When pole connects, situation about being awkward.
In the concrete structure of the antisepsis protector of the storage tank bottom of embodiment of the present invention offer, anode
Sealing device 24 includes being provided with anode seal stuffing box 241 with holes and anode gland-type switch (figure
Not shown in)；Anode gland-type switch removably connects with anode seal stuffing box 241；Negative electrode seals
Device 38 includes negative electrode sealed stuffing box 381 and negative electrode gland-type switch (not shown)；Negative electrode
Gland-type switch removably connects (referring specifically to Fig. 3 and Fig. 4) with negative electrode sealed stuffing box 381.
Illustrate:
Anode seal stuffing box is controlled the state sealing and opening by anode gland-type switch.Anode pressure
When lid formula switch cuts out, the outside isolation of anode steel pipe with storage tank can be entered one by anode seal stuffing box
Step ensures that pot liquid does not flow out storage tank；Anode gland-type switch is detachable when opening, and anode seal is filled out
Magazine is in the state opened, and now, anode steel pipe communicates with the external world, can to its interior anode or
Wire checks and changes.
Especially, internal reference electrode and storage tank tank bottoms between distance more than 300mm；Test is visited
Pin and storage tank tank bottoms between distance more than 150mm.I.e. internal reference electrode and test probe are not
The tank bottoms of storage tank can be got too close to, it is ensured that it normally works；As above distance, both can record more real
The current potential of energising point, can guarantee that again antisepsis protector properly functioning of whole storage tank bottom.
Further, a diameter of 76mm of anode steel pipe 21, thickness is 4mm, a length of 1200mm,
Guarantee to place a diameter of 25mm wherein, the anode 22 of a length of 1000mm；First cathode steel
A diameter of 76mm of pipe 31, thickness is 4mm, and the specification basic simlarity of anode steel pipe 21, can be with
Time manufacture, it is possible to cost-effective；It addition, the solid cylinder structure of anode 22 so that itself is more
Add firm.
A diameter of 150mm of the second negative electrode steel pipe 32, thickness is 5mm, it is ensured that set within it is logical
Electricity point 36 has a certain distance with cathodic protection station point 35；Preferably, energising point 36 and cathodic protection station
Distance between point 35 is 120mm.
In sum, the invention discloses antisepsis protector and the storage tank of a kind of storage tank bottom, its gram
The antisepsis protector of storage tank bottom traditional in prior art and many technological deficiencies of storage tank are taken.
The antisepsis protector of the storage tank bottom that the present invention provides and storage tank so that the Potential distribution of anode is more
Uniformly, the voltage and current of anode output is more stable；And improve pot liquid and anode is rushed
Hit and pollution problem, and the adverse effect that anode is caused by some high-temp liquids；It addition, facilitate right
The inspection of internal part and replacing.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than
It is limited；Although the present invention being described in detail with reference to foregoing embodiments, this area
Those of ordinary skill is it is understood that the technical scheme described in foregoing embodiments still can be entered by it
Row amendment, or the most some or all of technical characteristic is carried out equivalent；And these amendment or
Person replaces, and does not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the antisepsis protector of a storage tank bottom, it is characterised in that include potentiostat, conflux
Device and at least one anode bed；
Wherein, described anode bed includes anode steel pipe, anode and support；Described anode berth in water and
Below the demarcation line of oil；
Described anode steel pipe is fixedly connected on the tank skin of storage tank, and junction seals；Described anode steel
The head end of pipe completely encloses, and tail end is connected with positive pole sealing device；Arrange on described positive pole sealing device
There is through hole；Described through hole is for placing by the anode cable worn outside tank to tank；Described anode steel pipe water
Flat unsettled placement；The pipe basal surface of described anode steel pipe is provided with multiple drain hole；Described support is fixed
It is arranged on the inside of described anode steel pipe；Described anode lies in a horizontal plane in described support；Described anode
Insulate between steel pipe and described anode；Described anode electrically connects with described potentiostat；
Described collector-shoe gear includes the first negative electrode steel pipe, the second negative electrode steel pipe, the 3rd negative electrode steel pipe and interior
Portion's reference electrode；
Described first negative electrode steel pipe is fixedly connected on the tank skin of described storage tank, and junction seals；Institute
The tail end stating the first negative electrode steel pipe is connected with cathode sealing means；It is provided with on described cathode sealing means
Through hole；Described through hole is for placing by the cathode cable worn outside tank to tank；Described second negative electrode steel pipe
Lower end be fixedly installed on the tank bottoms of described storage tank, and both junctions seal and arrange；Described second is cloudy
The upper end of pole steel pipe connects with the head end of described first negative electrode steel pipe；The upper end of described 3rd negative electrode steel pipe
Connect near the part of described second negative electrode steel pipe with described first negative electrode steel pipe, and both connectivity parts
It is provided with sealing block；The lower ending opening of described 3rd negative electrode steel pipe is arranged；The tank bottoms setting of described storage tank
There are cathodic protection station point and energising point；It is cloudy that described cathodic protection station point and described energising point are respectively positioned on described second
The inside of pole steel pipe；Described cathodic protection station point and described energising point all electrically connect with described potentiostat；
Described internal reference electrode is fixedly installed on the inside of described 3rd negative electrode steel pipe；Described internal reference electricity
The upper end of pole is electrically connected with described potentiostat by the first wire.
2. the antisepsis protector of storage tank bottom as claimed in claim 1, it is characterised in that
Described anode bed is multiple；Multiple described anode beds are along the circumferencial direction of the tank skin of described storage tank
It is uniformly distributed.
3. the antisepsis protector of storage tank bottom as claimed in claim 2, it is characterised in that
The head end of described anode steel pipe is hemispherical configuration.
4. the antisepsis protector of storage tank bottom as claimed in claim 1, it is characterised in that
Described collector-shoe gear also includes testing probe and outside reference electrode；The upper end of described test probe
Being fixedly installed on the inside of described 3rd negative electrode steel pipe, lower end is positioned at the outside of described 3rd negative electrode steel pipe；
Described outside reference electrode is positioned at the outside of described storage tank；Described test probe passes through the second wire and institute
State outside reference electrode electrical to connect.
5. the antisepsis protector of storage tank bottom as claimed in claim 4, it is characterised in that
Described first negative electrode steel pipe be internally provided with test guide pipe；Described second wire is through described
The inside of test guide pipe.
6. the antisepsis protector of the storage tank bottom as described in any one of claim 1-5, its feature exists
In,
Described positive pole sealing device includes anode seal stuffing box with holes and anode gland-type switch；Institute
State anode gland-type switch to removably connect with described anode seal stuffing box；
Described cathode sealing means includes negative electrode sealed stuffing box and negative electrode gland-type switch；Described negative electrode
Gland-type switch removably connects with described negative electrode sealed stuffing box.
7. the antisepsis protector of the storage tank bottom as described in claim 4 or 5, it is characterised in that
Described internal reference electrode and described storage tank tank bottoms between distance more than 300mm；Described survey
Sound out pin and described storage tank tank bottoms between distance more than 150mm.
8. the antisepsis protector of the storage tank bottom as described in any one of claim 1-5, its feature exists
In,
A diameter of 76mm of described anode steel pipe, thickness is 4mm, a length of 1200mm；Described anode
For solid cylinder structural member, and its a diameter of 25mm, a length of 1000mm；Described first negative electrode
A diameter of 76mm of steel pipe, thickness is 4mm.
9. the antisepsis protector of the storage tank bottom as described in any one of claim 1-5, its feature exists
In,
A diameter of 150mm of described second negative electrode steel pipe, thickness is 5mm；Described energising point and described zero
The distance that position connects between cloudy point is 120mm.
10. a storage tank, it is characterised in that include the storage tank as described in any one of claim 1-9
Tank bottoms antisepsis protector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610525062.3A CN105925988B (en) | 2016-07-06 | 2016-07-06 | A kind of antisepsis protector and storage tank of storage tank bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610525062.3A CN105925988B (en) | 2016-07-06 | 2016-07-06 | A kind of antisepsis protector and storage tank of storage tank bottom |
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| CN105925988B CN105925988B (en) | 2018-09-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2871835Y (en) * | 2005-05-21 | 2007-02-21 | 过梦飞 | Inner-wall cathode protector of oil and water separator |
| CN104498962A (en) * | 2014-11-26 | 2015-04-08 | 中国石油天然气集团公司 | Forced current cathode protection method of inner wall of oilfield sewage storage tank |
| CN105386062A (en) * | 2015-12-16 | 2016-03-09 | 中国海洋石油总公司 | Protection cover of auxiliary anodes |
| CN205874545U (en) * | 2016-07-06 | 2017-01-11 | 天津隆顺技术服务有限公司 | Anticorrosive protection device and storage tank of storage tank tank bottoms |
-
2016
- 2016-07-06 CN CN201610525062.3A patent/CN105925988B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2871835Y (en) * | 2005-05-21 | 2007-02-21 | 过梦飞 | Inner-wall cathode protector of oil and water separator |
| CN104498962A (en) * | 2014-11-26 | 2015-04-08 | 中国石油天然气集团公司 | Forced current cathode protection method of inner wall of oilfield sewage storage tank |
| CN105386062A (en) * | 2015-12-16 | 2016-03-09 | 中国海洋石油总公司 | Protection cover of auxiliary anodes |
| CN205874545U (en) * | 2016-07-06 | 2017-01-11 | 天津隆顺技术服务有限公司 | Anticorrosive protection device and storage tank of storage tank tank bottoms |
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| Publication number | Publication date |
|---|---|
| CN105925988B (en) | 2018-09-28 |
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