CN109274278A - A kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device and method - Google Patents
A kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device and method Download PDFInfo
- Publication number
- CN109274278A CN109274278A CN201811318966.4A CN201811318966A CN109274278A CN 109274278 A CN109274278 A CN 109274278A CN 201811318966 A CN201811318966 A CN 201811318966A CN 109274278 A CN109274278 A CN 109274278A
- Authority
- CN
- China
- Prior art keywords
- screening electrodes
- mounting base
- high voltage
- direct current
- converter valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
Abstract
The invention discloses a kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device and methods, converter valve suitable for the small pipeline type of cooling, it includes two-sided thread bush in the same direction made of an insulating materials, its external screw thread is installed on T-type pipe, lower O-ring seal realizes the sealing between intermediary thread bush and T-type pipe, one screening electrodes are installed on the internal screw thread of intermediary thread bush, realize sealing using upper O-ring seal therebetween.The present invention, instead of the mode of whole T-type pipe of existing replacement, extends the service life of T-type pipe by the way of repairing, and avoids the waste of the material, manpower of replacement operation generation, reduces the risk of high voltage direct current valve cooling system leak；The new paragon that also proposed a kind of high voltage direct current converter valve screening electrodes installation simultaneously, changes the mounting means that original screening electrodes are directly mounted on T-type pipe, O-ring seal increases the reliability of sealing.
Description
Technical field
The present invention relates to the mounting techniques of high voltage direct current converter valve more particularly to high voltage direct current converter valve screening electrodes.
Background technique
Currently, converter valve screening electrodes fouling is more serious at home in HVDC transmission system, at least every two are needed
Carry out the operation of a manual demolition screening electrodes scale removal year, the screening electrodes mounting base screw thread on T-type pipe is polytetrafluoroethylene (PTFE)
Plastic material, screening electrodes screw thread are stainless steel metal material, and being dismounted for multiple times is easy to cause clinker thread failure.At present without effectively
Restorative procedure can only after failure as shown in Figure 1, be high voltage direct current converter valve screening electrodes scheme of installation in the prior art
Whole T-type pipe is replaced, needs to dismount 32 water pipe heads.The method of replacement not only expends the manpower of a large amount of material, Er Qiezeng
The risk for having added leak in the operation of change of current valve cooling system, is a kind of not only uneconomical but also unsafe way.
In view of this, changing equal it is necessory to provide a kind of high voltage direct current converter valve screening electrodes mounting base restorative procedure
The mounting means of piezoelectricity pole extends the service life of T-type pipe.
Summary of the invention
In view of problem above, the present invention provides a kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device and side
The mounting means of screening electrodes can be changed in method, extends the service life of T-type pipe, is particularly suitable for changing for the small pipeline type of cooling
Flow valve.
In order to achieve the above objectives, using following technical scheme:
A kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device and method, using a two-sided screw thread interplanting in the same direction
For intermediary, the two-sided thread bush both ends in the same direction prevent leak, the two-sided thread bush in the same direction using O-ring seal sealing
External screw thread coats suitable anaerobic adhesive when installing and prevents from loosening.
Steps are as follows for the high voltage direct current converter valve screening electrodes mounting base restorative procedure:
Mounting hole is expanded using electric drill after screening electrodes mounting base thread failure；
Reuse installation internal surface of hole setting and thread bush external screw thread matched internal screw thread of the thread tapper after expansion；
Suitable anaerobism glue-line is coated in two-sided thread bush external screw thread in the same direction, by two-sided thread bush in the same direction and T-type pipe screw thread
Connection；
Screening electrodes are screwed in two-sided thread bush in the same direction again, mounting base reparation is completed.
Mounting hole after expansion is non-through formula, and length is less than T-type length of tube.The thread bush is isolation material, is prevented
Galvano-cautery occurs in operation.
The restorative procedure can also be used as the new paragon of high voltage direct current converter valve screening electrodes installation, after thread bush failure more
It changes conveniently, increases the repeatability of mounting base reparation, extend the service life of T-type pipe.
Compared with prior art, the invention has the benefit that
The invention proposes a kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device and methods, while being also height
A kind of new mounting means for pressing DC converter valve screening electrodes, changes the installation side that screening electrodes are directly mounted on T-type pipe
Formula, O-ring seal increase the reliability of sealing.The invention present invention replaces replacement by the way of repairing, and extends T-type pipe
Service life avoids the waste of the material, manpower of replacement operation generation, reduces the wind of high voltage direct current valve cooling system leak
Danger.
Detailed description of the invention
Fig. 1 is high voltage direct current converter valve screening electrodes assembly method schematic diagram in the prior art.
Fig. 2 is mesohigh DC converter valve screening electrodes mounting base restorative procedure schematic diagram of the present invention.
Appended drawing reference:
O-ring seal, the upper O-ring seal of 4-, 5- screening electrodes, 6- peace under the two-sided thread bush in the same direction of 1-T type pipe, 2-, 3-
Fill hole.
Specific embodiment
The contents of the present invention are described in further details with reference to the accompanying drawings and detailed description.
A kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device and corresponding restorative procedure are straight with expensive wide I time
For flowing high slope station converter valve, that it changes the mounting means of original screening electrodes shown in Fig. 1.
Prosthetic device includes T-type pipe 1, two-sided thread bush 2 in the same direction made of insulating materials, and lower O-ring seal 3 is upper O-shaped close
Seal 4 and screening electrodes 5.
When in use, as shown in Fig. 2, after screening electrodes mounting base thread failure, expanded in T-type pipe 1 using electric drill
Mounting hole 6, but not through, reuse thread tapper be arranged on the mounting hole 6 after expansion with the matched interior spiral shell of thread bush external screw thread
Line, this is step 1: " removing disabling portion ".
Then by lower O-ring seal 3, two-sided thread bush 2 in the same direction, upper O-ring seal 4 and equal piezoelectricity made of insulating materials
Pole 5 is in turn mounted on T-type pipe 1 according to assembly method shown in Fig. 2 and fastens by 1.5Nm torque.
In order to increase assembly reliability, prevent thread bush from loosening, when assembly can be on the external screw thread of two-sided thread bush 2 in the same direction
Coat appropriate anaerobism glue-line.
Above-listed detailed description is illustrating for possible embodiments of the present invention, and the embodiment is not to limit this hair
Bright the scope of the patents, all equivalence enforcements or change without departing from carried out by the present invention, is intended to be limited solely by the scope of the patents of this case.
Claims (7)
1. a kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device is suitable for being located at converter valve water- cooling generator T-type
The reparation of screening electrodes mounting base on pipe, it is characterised in that: the prosthetic device includes a two-sided thread bush in the same direction, described double
Face thread bush in the same direction is set between the T-type pipe and screening electrodes, avoid screening electrodes on T-type pipe plastic whorl it is straight
Contact.
2. high voltage direct current converter valve screening electrodes mounting base prosthetic device according to claim 1, it is characterised in that: described
Two-sided thread bush in the same direction is made of isolation material.
3. high voltage direct current converter valve screening electrodes mounting base prosthetic device according to claim 1, it is characterised in that: also wrap
Two O-ring seals are included, the O-ring seal is respectively arranged at the both ends of the two-sided thread bush in the same direction.
4. high voltage direct current converter valve screening electrodes mounting base prosthetic device according to claim 1, it is characterised in that: described
Anaerobism glue-line is provided between the external screw thread and T-type pipe internal screw thread of two-sided thread bush in the same direction.
5. a kind of high voltage direct current converter valve screening electrodes mounting base restorative procedure, it is characterised in that: the following steps are included:
Step 1: after screening electrodes mounting base thread failure, expanding the mounting hole of T-type pipe, mounting hole after expansion not through
The T-type pipe；
Step 2: the setting of installation internal surface of hole and the two-sided matched internal screw thread of thread bush external screw thread after expansion；
Step 3: the two-sided thread bush in the same direction is screwed in the mounting hole after the expansion；
Step 4: screening electrodes are screwed in the two-sided thread bush in the same direction.
6. high voltage direct current converter valve screening electrodes mounting base restorative procedure according to claim 5, it is characterised in that: in step
Between rapid two and step 3, including step 5: it is coated between the two-sided thread bush external screw thread and the installation internal surface of hole
Anaerobic adhesive.
7. high voltage direct current converter valve screening electrodes mounting base restorative procedure according to claim 5, it is characterised in that: in institute
The upper and lower ends for stating two-sided thread bush in the same direction are respectively arranged with O-ring seal, and the O-ring seal of lower end is used for thread bush and T-type
Sealing between pipe, the O-ring seal of upper end is for the sealing between mounting base and screening electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318966.4A CN109274278A (en) | 2018-11-07 | 2018-11-07 | A kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318966.4A CN109274278A (en) | 2018-11-07 | 2018-11-07 | A kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109274278A true CN109274278A (en) | 2019-01-25 |
Family
ID=65192245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811318966.4A Pending CN109274278A (en) | 2018-11-07 | 2018-11-07 | A kind of high voltage direct current converter valve screening electrodes mounting base prosthetic device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109274278A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072500A (en) * | 2020-09-23 | 2020-12-11 | 吉林德蕴电气集团股份有限公司 | Combined isolated switch cabinet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206389291U (en) * | 2016-12-12 | 2017-08-08 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of high voltage direct current converter valve screening electrodes mounting structure |
| WO2018160230A1 (en) * | 2017-03-02 | 2018-09-07 | HYTORC Division Unex Corporation | Two-part tapered thread nut assembly |
-
2018
- 2018-11-07 CN CN201811318966.4A patent/CN109274278A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206389291U (en) * | 2016-12-12 | 2017-08-08 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of high voltage direct current converter valve screening electrodes mounting structure |
| WO2018160230A1 (en) * | 2017-03-02 | 2018-09-07 | HYTORC Division Unex Corporation | Two-part tapered thread nut assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072500A (en) * | 2020-09-23 | 2020-12-11 | 吉林德蕴电气集团股份有限公司 | Combined isolated switch cabinet |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |