CN205680805U - A kind of device preventing different hardware/parts galvanic corrosion - Google Patents
A kind of device preventing different hardware/parts galvanic corrosion Download PDFInfo
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- CN205680805U CN205680805U CN201620622781.2U CN201620622781U CN205680805U CN 205680805 U CN205680805 U CN 205680805U CN 201620622781 U CN201620622781 U CN 201620622781U CN 205680805 U CN205680805 U CN 205680805U
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- noble potential
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- galvanic corrosion
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Abstract
The utility model relates to a kind of device preventing different hardware/parts galvanic corrosion, it is arranged on different metal device and is connected with grounded screen, described different metal device includes the first noble potential metal parts and contacts with described first noble potential metal parts and there are the second noble potential metal parts of potential difference with it, and it includes the insulating bushing being arranged between described first noble potential metal parts and described second noble potential metal parts, connects described first noble potential metal parts and the earth connection of described grounded screen and the decoupling device being connected with described earth connection.By being attached insulating bushing, earth connection and decoupling device according to a fixed structure, so can avoid different metal device generation galvanic corrosion, disclosure satisfy that the electric insulation treatment measures being applicable to field working conditions, moreover it is possible to meet demand anti-lightning strike, anti-interference.
Description
Technical field
The utility model belongs to pipe testing apparatus field, is specifically related to one and prevents different hardware/parts galvanic couple rotten
The device of erosion.
Background technology
It when different metals soaks in the electrolytic solution, between metal, is usually present potential difference, if contacting with each other or using
To first connecting, then some potential difference just drives electronics to be flowed to the higher metal of current potential by the relatively low metal of current potential, and then galvanic couple occurs
Corrosion.
At present, the control principle of galvanic corrosion mainly passes through two aspects: the 1st, do not form galvanic couple；2nd, galvanic couple reaction is increased
Resistance.Major control approach includes: the 1st, select same metal or the little different metal (including coating) of potential difference to interconnect mutually as far as possible
Connect；2nd, electric insulation between different metal；3rd, electrolyte is completely cut off；4th, polarization of electrode is increased；5th, solution resistance and contact electricity are increased
Resistance；6th, reduce cathode area or increase annode area；7th, sacrificial anode.But, for actual conditions, above-mentioned a lot of approach
Use after being not suitable for operating mode solidification, and owing to the electric drainage by grounding of equipment is processed and other thunder-lightnings, anti-interference method, lead
Cause scene typically cannot meet electrical insulation capability.
Content of the invention
The utility model purpose is to provide one to prevent different hardware/parts electricity to overcome the deficiencies in the prior art
The device of thermogalvanic corrision.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: one prevents different hardware/parts galvanic couple
The device of corrosion, it is arranged on different metal device and is connected with grounded screen, and described different metal device includes the first current potential gold
Belonging to parts and contacting with described first noble potential metal parts and there are the second noble potential metal parts of potential difference with it, it wraps
Include be arranged between described first noble potential metal parts and described second noble potential metal parts insulating bushing, connect described first
Noble potential metal parts and the earth connection of described grounded screen and the decoupling device being connected with described earth connection.
Optimally, it also include being arranged between described first noble potential metal parts and described second noble potential metal parts and
The insulation spacer matching with described insulating bushing.
Optimally, the two ends of described decoupling device are all connected with described earth connection.
Owing to technique scheme is used, the utility model compared with prior art has the advantage that the utility model
Prevent the device of different hardware/parts galvanic corrosion, by by insulating bushing, earth connection and decoupling device according to a fixed structure
It is attached, so can avoid different hardware/parts generation galvanic corrosion, disclosure satisfy that the electric insulation being applicable to field working conditions
Treatment measures, moreover it is possible to meet demand anti-lightning strike, anti-interference.
Brief description
Fig. 1 is the structural representation that the utility model prevents different hardware/parts galvanic corrosion device；
Wherein, the 10th, different metal device；11st, the first noble potential metal parts；12nd, the second noble potential metal parts；21st, insulation lining
Set；22nd, insulation spacer；23rd, earth connection；24th, decoupling device；30th, grounded screen.
Detailed description of the invention
The utility model is further described by embodiment shown below in conjunction with the accompanying drawings.
The device preventing different hardware/parts galvanic corrosion as shown in Figure 1, mainly includes that the 21st, insulating bushing is grounded
Line 23 and decoupling device 24.This prevents the device of different hardware/parts galvanic corrosion to be arranged on different metal device 10, and with
Grounded screen 30 is connected.And different metal device 10 include the first noble potential metal parts 11 and with the first noble potential metal parts 11 phase
Contact and there are the second noble potential metal parts 12 of potential difference with it.If the first noble potential metal parts 11 are high potential metal portions
Part, then the second noble potential metal parts 12 are low potential metal parts；If the first noble potential metal parts 11 are low potential metal portions
Part, then the second noble potential metal parts 12 are high potential metal parts；When generally the potential difference between them is more than 50mV, the first electricity
Position metal parts 11 and the second noble potential metal parts 12 connect easily generation galvanic corrosion.
Wherein, this prevents the device of different hardware/parts galvanic corrosion from including insulating bushing the 21st, earth connection 23 and decoupling
Clutch 24.Insulating bushing 21 is arranged between the first noble potential metal parts 11 and the second noble potential metal parts 12, at the present embodiment
In, the first noble potential metal parts 11 can be the flange connecting pipeline, and the second noble potential metal parts 12 can be adpting flange
Bolt, therefore can be embedded the insulating bushing 21 being set on bolt in flange.Earth connection 23 connects the first noble potential metal portion
Part 11 and grounded screen 30, can make it have thunder-lightning, jamming-proof performance.The two ends of decoupling device 24 all with earth connection 23 phase
Connecting, it matches with insulating bushing 21, so makes this device can meet on-the-spot electric insulation process, can meet again anti-lightning strike
Demand.
In the present embodiment, this prevents the device of different hardware/parts galvanic corrosion from also including insulation spacer 22, and it is pacified
It is contained between the first noble potential metal parts 11 and the second noble potential metal parts 12, be i.e. arranged on the side of flange and be sheathed on bolt
On, it matches with insulating bushing 21, plays the effect of electric insulation, thus improves and prevent different hardware/parts galvanic corrosion
Effect.This prevents the device of different hardware/parts galvanic corrosion to be applicable to the electric insulation treatment measures of field working conditions, again can
Meet demand anti-lightning strike, anti-interference, different hardware/parts generation galvanic corrosion can be avoided.
Above-described embodiment only for illustrating that technology of the present utility model is conceived and feature, its object is to allow and is familiar with technique
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All according to the utility model Spirit Essence made equivalence change or modify, all should cover protection domain of the present utility model it
In.
Claims (3)
1. prevent a device for different hardware/parts galvanic corrosion, it be arranged on different metal device (10) upper and with ground connection
Net (30) is connected, described different metal device (10) include the first noble potential metal parts (11) and with described first noble potential metal
Parts (11) contact and there are the second noble potential metal parts (12) of potential difference with it, it is characterised in that: it includes being arranged on
Insulating bushing (21) between described first noble potential metal parts (11) and described second noble potential metal parts (12), connection are described
First noble potential metal parts (11) and the earth connection of described grounded screen (30) (23) and be connected with described earth connection (23)
Decoupling device (24).
2. the device preventing different hardware/parts galvanic corrosion according to claim 1, it is characterised in that: it also wraps
Include and be arranged between described first noble potential metal parts (11) and described second noble potential metal parts (12) and serve as a contrast with described insulation
The insulation spacer (22) that set (21) matches.
3. the device preventing different hardware/parts galvanic corrosion according to claim 1, it is characterised in that: described go
The two ends of coupler (24) are all connected with described earth connection (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620622781.2U CN205680805U (en) | 2016-06-22 | 2016-06-22 | A kind of device preventing different hardware/parts galvanic corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620622781.2U CN205680805U (en) | 2016-06-22 | 2016-06-22 | A kind of device preventing different hardware/parts galvanic corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205680805U true CN205680805U (en) | 2016-11-09 |
Family
ID=57431785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620622781.2U Active CN205680805U (en) | 2016-06-22 | 2016-06-22 | A kind of device preventing different hardware/parts galvanic corrosion |
Country Status (1)
| Country | Link |
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| CN (1) | CN205680805U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932441A (en) * | 2016-06-22 | 2016-09-07 | 苏州热工研究院有限公司 | Device for preventing galvanic corrosion of dissimilar metal equipment/part |
| CN110338629A (en) * | 2018-04-02 | 2019-10-18 | 佛山市顺德区美的电热电器制造有限公司 | Interior pot and cooking apparatus |
-
2016
- 2016-06-22 CN CN201620622781.2U patent/CN205680805U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932441A (en) * | 2016-06-22 | 2016-09-07 | 苏州热工研究院有限公司 | Device for preventing galvanic corrosion of dissimilar metal equipment/part |
| CN110338629A (en) * | 2018-04-02 | 2019-10-18 | 佛山市顺德区美的电热电器制造有限公司 | Interior pot and cooking apparatus |
| CN110338629B (en) * | 2018-04-02 | 2021-09-28 | 佛山市顺德区美的电热电器制造有限公司 | Inner pot and cooking utensil |
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| GR01 | Patent grant |