CN207699670U - Utilize the impressed current protection cable erosion protection system of electric conduction of rainwater - Google Patents
Utilize the impressed current protection cable erosion protection system of electric conduction of rainwater Download PDFInfo
- Publication number
- CN207699670U CN207699670U CN201721812023.8U CN201721812023U CN207699670U CN 207699670 U CN207699670 U CN 207699670U CN 201721812023 U CN201721812023 U CN 201721812023U CN 207699670 U CN207699670 U CN 207699670U
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- China
- Prior art keywords
- cable
- impressed current
- potentiostat
- rainwater
- electric conduction
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Abstract
The utility model discloses a kind of impressed current protection cable erosion protection systems using electric conduction of rainwater, including cable and the impressed current anode on insulating sheath on the outside of cable；The end of the cable is equipped with cathode access point and external current protection device；The external current protection device includes reference electrode, DC power supply and potentiostat, and the reference electrode is mounted on the insulating sheath on the outside of cable and insulate with cable；One end of the DC power supply is connect by potentiostat with impressed current anode, and the other end is connected to by potentiostat on cathode access point.The utility model can enhance the inhibition to bridge cable corrosion in rainy weather, mitigate influence of the corrosion to bridge cable service life, the service life of current cable can be greatly improved, while system is in off state in non-rainfall, without electric current by saving electric energy.
Description
Technical field
The utility model relates generally to Loads of Long-span Bridges construction and maintenance area more particularly to a kind of utilizing the outer of electric conduction of rainwater
Add current protection cable erosion protection system.
Background technology
Social fast-developing, Loads of Long-span Bridges plays more and more important work as the important component of Modern Traffic
With.The cable bridges such as suspension bridge, cable-stayed bridge and arched bridge pre-stressed boom occupy sizable ratio in Loads of Long-span Bridges, are across great river, straits
The main bridge type of bridge project, sometimes even unique rational bridge type.Bridge cable is as the master on suspension bridge or cable-stayed bridge
Supporting member, reliability, durability is wanted to be directly related to the structure safety of bridge entirety.Such as the design of existing highway bridge hoist cable
Service life is 20 years, and the actual useful year of hoist cable then rarely exceeds 20 years；With 100 years phases of design life of bridge
Difference is very remote.The basic reason of bridge cable damage is mainly stress corrosion and corrosion fatigue.The mechanism to fail from bridge cable is come
It sees, mainly caused by the collective effect of air raindrop erosion and extraneous load, i.e. stress corrosion, corrosion fatigue coupling is made
With lower caused damage, become the weak link of entire cable, bridge capacity will be influenced when serious.Since corrosion is contingency
, stress corrosion, corrosion fatigue coupling caused by cable bearing capacity loss by analyze method be difficult determination,
Therefore it causes inaccurate for bridge cable life forecast.And cable rope jacket cracking, damaged part often corrode the most sternly
Weight, for sheath once failing, cable steel wire will be serious to even result in fracture of wire, disconnected rope etc. by different degrees of corrosion failure
Situation generates, and directly affects the safety of structure of bridge.When rainy weather, due to the common work of rainwater and oxygen in air
With such phenomenon is even more serious, causes larger economic loss.
Utility model content
To solve the above-mentioned problems, it is anti-to provide a kind of impressed current protection cable using electric conduction of rainwater for the utility model
Corrosion device can enhance the inhibition to bridge cable corrosion in rainy weather, mitigate corrosion to bridge cable service life
It influences, the service life of current cable can be greatly improved, while system is in off state in non-rainfall, it is logical without electric current
Cross saving electric energy.
The technical solution adopted in the utility model is：A kind of impressed current protection cable anticorrosion using electric conduction of rainwater fills
It sets, including cable and the impressed current anode on insulating sheath on the outside of cable；The end of the cable connects equipped with cathode
Access point and external current protection device；The external current protection device includes reference electrode, DC power supply and potentiostat,
The reference electrode is mounted on the insulating sheath on the outside of cable and insulate with cable；One end of the DC power supply passes through
Potentiostat is connect with impressed current anode, and the other end is connected to by potentiostat on cathode access point.
Further, the cable is equipped with potential test point, and reference electrode is connected on potential test point.
Further, the cathode access point is arranged in the cable end opposite with impressed current anode.
Further, the impressed current anode is made of mixed oxide, ferrosilicon or lead material.
Further, the reference electrode is made of Mercurous sulfate electrode or calomel electrode.
The utility model generate advantageous effect be：The utility model forms galvanic circle, the conduction using rainfall rainwater
Circuit produces cathodic polarization on the cable of cable damaged part, enhances the inhibition to bridge cable corrosion, while not dropping
There is no electric current to pass through when rain, save electric energy, mitigates influence of the corrosion to cable service life, current cable can be greatly improved
Service life.
Description of the drawings
Fig. 1 is the construction signal of the etch-proof external current protection device for cable of the utility model embodiment
Figure；
Fig. 2 is the line structure schematic cross-sectional view of the utility model embodiment；
Fig. 3 is the line structure schematic longitudinal section of the utility model embodiment；
Fig. 4 is the connection structure of the etch-proof external current protection device for cable of the utility model embodiment
Figure.
In figure：1, cable, 2, insulating sheath, 3, impressed current anode, 4, cathode access point, 5, DC power supply, 6, sheath it is damaged
Position, 7, reference electrode, 8, potentiostat, 9, voltmeter, 10, rainwater.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The utility model discloses a kind of impressed current protection cable erosion protection systems using electric conduction of rainwater, including cable
1 and it is coated on the insulating sheath 2 in the outside of cable 1, as shown in Figure 2.Polylith impressed current anode 3 is evenly distributed on insulating sheath 2,
Cathode access point 4 is set on cable 1, and the impressed current anode 3 is according to the cracking failure situation of cable insulating sheath 2, cable
The actual conditions such as size, the model of the corrosion situation of cable, impressed current anode be arranged.Reference electrode 7 is arranged in cable
2 outside of insulating sheath is simultaneously in contact with it, and ensures that it insulate in no rainwater with cable 1.
As shown in Figure 1, the DC power supply 5 in the utility model is for providing lasting, burning voltage or electric current, DC power supply
5 one end is connected with the multiple impressed current anode 3 respectively by potentiostat 8, and the opposite other end passes through potentiostat 8
It is connected on the cathode access point 4.The wherein anode connection impressed current anode 3 of potentiostat 8, the cathode connection of potentiostat 8
Cathode access point 4.Voltmeter 9 is connected on cable 1, voltmeter 9 can monitor at reference electrode in real time in rainy weather
The current potential of cable, contrastive detection to current potential refer to the potential value with protective standard, controlling the output voltage of potentiostat makes cable
In by guard mode.The output current of potentiostat 8, output voltage can according to use condition, by protection line structure institute
The resistance of the electric current and protection system circuit that need carries out calculating determination.
As shown in figure 3, impressed current anode 3 is arranged in the outside of insulating sheath 2, under the action of external direct current power supply 5, supplemented by
Supporing yang pole 3 provides electronics, meanwhile, it is conductive by rainfall rainwater 10, galvanic circle is formed between the cathode access point 4 of cable 1, is made
Cathodic polarization occurs for the cathode access point 4 on cable 1, to play the role of inhibiting corrosion.Platinum may be used in impressed current anode 3
Piece, platinized titanium, cast iron, graphite or pb-ag alloy etc..Impressed current anode 3 has electrochemicaUy inert, and anode polarization rate is low, and loss is few etc.
Characteristic.
When rainfall, since DC power supply 5 can pass through the part exposed to the atmosphere to cable 1 of potentiostat 8 and auxiliary
Anode 3 applies certain DC current, and electrochemical reaction will occur for the surface of impressed current anode 3, can be constantly to cable 1
Cathode access point 4 provide electronics, to make cable 1 generate cathodic polarization.When the current potential of the cathode access point 4 of cable 1 is defeated by
When the place value of certain point, the anodic dissolution processes of corrosion will be suppressed, and then realize inhibition to bridge cable corrosion, can be with
The service life for greatly improving current cable eliminates influence of the corrosion to cable service life under rainy weather, when not dropping
When rain, system is in off state, does not have electric current by saving electric energy in circuit, economic benefit and social benefit are notable.
The utility model in the specific implementation, can be implemented to protect, the potentiostat in Fig. 1 can to multiple cables 1 simultaneously
With several cables 1 in parallel, impressed current protection is applied to it.
In the description of this specification, the description of reference term " one embodiment ", " a part of the embodiment ", " example " etc.
Mean that specific features, structure, material, quantity or feature described in conjunction with this embodiment or example are contained in the present invention at least
In one embodiment or example.In the present specification, schematic expression of the above terms are necessarily directed to identical reality
Apply example or example.Moreover, specific features, structure, material, quantity or the feature of description can be in any one or more
It can be combined in any suitable manner in embodiment or example.In addition, those skilled in the art can by it is described in this specification not
It is combined with embodiment or example.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (4)
1. a kind of impressed current protection cable erosion protection system using electric conduction of rainwater, it is characterised in that：Including cable and installation
Impressed current anode on the outside of the cable on insulating sheath；The end of the cable is equipped with cathode access point and impressed current protection
Device；The external current protection device includes reference electrode, DC power supply and potentiostat, reference electrode installation
It insulate on the insulating sheath on the outside of cable and with cable；One end of the DC power supply passes through potentiostat and impressed current anode
Connection, the other end are connected to by potentiostat on cathode access point.
2. a kind of impressed current protection cable erosion protection system using electric conduction of rainwater according to claim 1, described
Cathode access point is arranged in the cable end opposite with impressed current anode.
3. a kind of impressed current protection cable erosion protection system using electric conduction of rainwater according to claim 1, described
Impressed current anode is made of mixed oxide, ferrosilicon or lead material.
4. a kind of impressed current protection cable erosion protection system using electric conduction of rainwater according to claim 1, described
Reference electrode is made of Mercurous sulfate electrode or calomel electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721812023.8U CN207699670U (en) | 2017-12-22 | 2017-12-22 | Utilize the impressed current protection cable erosion protection system of electric conduction of rainwater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721812023.8U CN207699670U (en) | 2017-12-22 | 2017-12-22 | Utilize the impressed current protection cable erosion protection system of electric conduction of rainwater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207699670U true CN207699670U (en) | 2018-08-07 |
Family
ID=63027924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721812023.8U Withdrawn - After Issue CN207699670U (en) | 2017-12-22 | 2017-12-22 | Utilize the impressed current protection cable erosion protection system of electric conduction of rainwater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207699670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988603A (en) * | 2017-12-22 | 2018-05-04 | 郑州大学 | Utilize the impressed current protection cable erosion protection system and method for electric conduction of rainwater |
-
2017
- 2017-12-22 CN CN201721812023.8U patent/CN207699670U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988603A (en) * | 2017-12-22 | 2018-05-04 | 郑州大学 | Utilize the impressed current protection cable erosion protection system and method for electric conduction of rainwater |
| CN107988603B (en) * | 2017-12-22 | 2023-07-07 | 郑州大学 | Device and method for protecting cable from corrosion by using externally applied current of rainwater conduction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180807 Effective date of abandoning: 20230707 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180807 Effective date of abandoning: 20230707 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |