CN208904899U - A kind of converter valve tubular type equipotential electrode - Google Patents
A kind of converter valve tubular type equipotential electrode Download PDFInfo
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- CN208904899U CN208904899U CN201821640691.1U CN201821640691U CN208904899U CN 208904899 U CN208904899 U CN 208904899U CN 201821640691 U CN201821640691 U CN 201821640691U CN 208904899 U CN208904899 U CN 208904899U
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- equipotential electrode
- converter valve
- equipotential
- electrode
- round tube
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Abstract
The utility model provides a kind of converter valve tubular type equipotential electrode, including round tube, circular tube external wall both ends are provided with screw thread, and the end face of round tube is provided with annular groove, it is equipped with O-ring seal in the annular groove, is also connected with equipotential electrode connecting plate on circular tube external wall；The horizontal water tube both ends of converter valve section are arranged in the equipotential electrode, axially arrange along water pipe caliber.Structure is simple, high reliablity, big with cooling medium contact area, and anti-electrolysis corrosive effect is obvious；Equipotential electrode along water pipe axially arrange, the current density that reduces leakage point, greatly reduce electrode surface parallel with water flow and current direction, the corrosion and scaling problem of effective solution equipotential electrode；Sealing ring does not contact cooling medium simultaneously, effectively prevents sealing ring from corroding, improves the sealing reliability of water circuit system.
Description
Technical field
The utility model relates to technical field of direct current power transmission, in particular to a kind of converter valve tubular type equipotential electrode.
Background technique
With the continuous development of China's high voltage dc transmission technology, DC transmission engineering is increasing.Converter valve is as straight
The core equipment of transmission system is flowed, the operating condition of inner cooling system directly affects the safe and stable operation of converter valve.Therefore
Guarantee the reliable of cooling system, efficient operation is most important.
Converter valve generallys use deionized water as thermally conductive medium, there are potential difference between the water cooled pipeline inside valve tower,
Cooling water has certain conductivity, is typically maintained in 0.1~0.5 μ S/cm, therefore can have certain leakage current, thus
Lead to the corrosion of radiator and the fouling of electrode.Common settling mode is the suitable position design isopotential electrical in water cooling pipeline
Pole.
Structure is complicated for equipotential electrode general at present, multiple-sealed circle poor reliability；It needs to punch on water pipe, increase
The connector and leak source in water route；Such as: the Chinese patent of 105118825 A of Publication No. CN provides a kind of equipotential electrode,
For equipotential needle installation direction in this equipotential electrode assembly perpendicular to water (flow) direction, surface current density is big, easily corrodes
And fouling, life cycle are short.
Summary of the invention
In order to solve the deficiency in background technique, the utility model provides a kind of converter valve tubular type equipotential electrode, knot
Structure is simple, high reliablity, big with cooling medium contact area, and anti-electrolysis corrosive effect is obvious；Equipotential electrode along water pipe axis
It is parallel with water flow and current direction to arrangement, the current density for reducing leakage point, greatly reducing electrode surface, effectively
The corrosion and scaling for solving the problems, such as equipotential electrode；Sealing ring does not contact cooling medium simultaneously, effectively prevents sealing ring rotten
Erosion, improves the sealing reliability of water circuit system.
In order to achieve the above object, the utility model is implemented with the following technical solutions:
A kind of converter valve tubular type equipotential electrode, including round tube, circular tube external wall both ends are provided with screw thread, the end face of round tube
It is provided with annular groove, O-ring seal is equipped in the annular groove, the connection of equipotential electrode is also connected on circular tube external wall
Plate；The horizontal water tube both ends of converter valve section are arranged in the equipotential electrode, axially arrange along water pipe caliber.
The equipotential electrode connecting plate is equipped with screw hole, and equipotential line is arranged by terminal screw in the screw
In hole.
Spanner fixed position is additionally provided in the middle part of the round tube, the spanner fixed position is to set in two sides of round tube
The rectangular planes set.
Compared with prior art, the utility model has the beneficial effects that
1, equipotential electrode along water pipe axially arrange, it is parallel with water flow and current direction, reduce leakage point, greatly
Reduce the current density of electrode surface, the corrosion and scaling problem of effective solution equipotential electrode；
2, such mounting means can be used for any position of converter valve water pipe, simple and convenient.
3, structure is simple, belongs to single part, easy to process, easy for assemble or unload, high reliablity；It is contacted with cooling medium
Area is big, and anti-electrolysis corrosive effect is obvious, and descaling method is simple, and the repair and maintenance period is long.
4, sealing ring does not contact cooling medium, effectively prevents sealing ring from corroding, and improves the sealed reliable of water circuit system
Property；
5, round tube diameter can match with water pipe diameter, not influence the flow velocity of cooling medium.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of converter valve tubular type equipotential electrode provided by the utility model；
Fig. 2 is the cross-sectional view in the face converter valve tubular type equipotential electrode A-A provided by the utility model；
Fig. 3 is the installation diagram of converter valve tubular type equipotential electrode provided by the utility model；
Fig. 4 is the installation B-B cross-sectional view of converter valve tubular type equipotential electrode provided by the utility model.
Wherein: 1- round tube 2- screw thread 3- spanner bearing 4- equipotential line connecting plate 5- annular groove 6- is by enabling 7-
Inner thread head 8-O type sealing ring 9- valve section horizontal water tube.
Specific embodiment
Specific embodiment provided by the utility model is described in detail below in conjunction with attached drawing.
As shown in Figs. 1-2, a kind of converter valve tubular type equipotential electrode, including round tube 1,1 outer wall both ends of round tube are provided with
Screw thread 2, the end face of round tube 1 are provided with annular groove 5, are equipped with O-ring seal 8 in the annular groove 5, on 1 outer wall of round tube
Also it is connected with equipotential electrode connecting plate 4；9 both ends of horizontal water tube of converter valve section are arranged in the equipotential electrode, along water
Pipe caliber is axially arranged.
The equipotential electrode connecting plate 4 is equipped with screw hole, and equipotential line is arranged by terminal screw in the spiral shell
In nail hole.
Spanner fixed position 3 is additionally provided in the middle part of the round tube 1, the spanner fixed position 3 is in two sides of round tube 1
The rectangular planes of face setting.
1 material of round tube is 316L stainless steel.
As shown in Figure 3-4, the described equipotential electrode setting is at 9 both ends of valve section horizontal water tube, by by enabling 6 by isopotential electrical
Pole is connected with two sides water pipe 9.Specific connection type is to be tightened by torque spanner by enabling 6 inner thread head 7 to the tubular type
On equipotential electrode, and then by the reliable sealing of O-ring seal 8 in the pressing force of screw thread 2 realization annular groove 5.The equal electricity
For position electrode along the axial setting of water pipe 9, axis is parallel with the water flow of water pipe and current direction；Spanner bearing 3 is for tightening by enabling 6
When equipotential electrode fixation；Screw hole on equipotential line connecting plate 4 be used for by terminal screw installation equipotential line with
It is connected convenient for the metal parts of converter valve section end.Such mounting means can be used for any position of converter valve water pipe, letter
Folk prescription is just.
The diameter of the round tube 1 matches with 9 diameter of water pipe, does not influence the flow velocity of cooling medium.By being rationally arranged
The contact area of round tube and cooling water can effectively reduce the current density of electrode surface, resist as caused by leakage current
The corrosion and fouling of equipotential electrode；On the other hand the current potential in water route is clamped down on by tubular type equipotential electrode, so that converter valve
Water route Potential distribution is reasonable, consistent with the Potential distribution of change of current valve body, to reduce the leakage current in water circuit system.
The novel pipe equipotential electrode can play simultaneously presses, and command potential and anti-electrocorrosion and fouling are made
With.The current potential of water pipe can be clamped down on by installing equipotential line by screw hole on equipotential line connecting plate 4, prevent water pipe current potential with
Neighbouring metal parts potential difference is excessively high and generates corona, flashover etc., and then punctures water pipe and cause leak.Due to electricity such as novel pipes
The effective area that position electrode is contacted with cooling water increases, while using 316L stainless steel material, can be very good to solve converter valve
The corrosion and scaling problem of water circuit system equipotential electrode, extends the repair and maintenance period, improves waterway seal reliability.
The novel pipe equipotential electrode structure is simple, easy to process, and easy for assemble or unload, sealing ring 8 does not contact
Cooling medium, high reliablity；It does not need to punch on water pipe, only be connected through a screw thread, reduce the leakage point in water route, Jin Erti
The high sealing reliability and service life of water circuit system.Any position that may be mounted at water pipe, flexibly and effectively clamps down on water
Pipe current potential.The mounting means of the tubular type equipotential electrode is connected different from flange form, is not needed bolt and nut, is directly passed through spiral shell
Line compresses, and the tip of bolt and nut itself is effectively avoided to generate corona discharge under the electric circumstance of converter valve.
Above embodiments are implemented under premised on technical solutions of the utility model, give detailed embodiment
With specific operating process, but the protection scope of the utility model is not limited to the above embodiments.Side used in above-described embodiment
Method is conventional method unless otherwise instructed.
Claims (3)
1. a kind of converter valve tubular type equipotential electrode, which is characterized in that the equipotential electrode includes round tube, circular tube external wall
Both ends are provided with screw thread, and the end face of round tube is provided with annular groove, are equipped with O-ring seal in the annular groove, outside round tube
Equipotential electrode connecting plate is also connected on wall；The horizontal water tube both ends of converter valve section, edge is arranged in the equipotential electrode
Water pipe caliber is axially arranged.
2. a kind of converter valve according to claim 1 tubular type equipotential electrode, which is characterized in that the isopotential electrical
Pole connecting plate is equipped with screw hole, and equipotential line is arranged in the screw hole by terminal screw.
3. a kind of converter valve according to claim 1 tubular type equipotential electrode, which is characterized in that in the middle part of the round tube
It is additionally provided with spanner fixed position, the spanner fixed position is the rectangular planes being arranged in two sides of round tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821640691.1U CN208904899U (en) | 2018-10-10 | 2018-10-10 | A kind of converter valve tubular type equipotential electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821640691.1U CN208904899U (en) | 2018-10-10 | 2018-10-10 | A kind of converter valve tubular type equipotential electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208904899U true CN208904899U (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821640691.1U Active CN208904899U (en) | 2018-10-10 | 2018-10-10 | A kind of converter valve tubular type equipotential electrode |
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| Country | Link |
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| CN (1) | CN208904899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039104A (en) * | 2018-10-10 | 2018-12-18 | 北京荣信慧科科技有限公司 | A kind of converter valve tubular type equipotential electrode |
-
2018
- 2018-10-10 CN CN201821640691.1U patent/CN208904899U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039104A (en) * | 2018-10-10 | 2018-12-18 | 北京荣信慧科科技有限公司 | A kind of converter valve tubular type equipotential electrode |
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