CN109955008A - A kind of welder for nuclear leve valve core for gate valve sealing surface reparation - Google Patents
A kind of welder for nuclear leve valve core for gate valve sealing surface reparation Download PDFInfo
- Publication number
- CN109955008A CN109955008A CN201711402656.6A CN201711402656A CN109955008A CN 109955008 A CN109955008 A CN 109955008A CN 201711402656 A CN201711402656 A CN 201711402656A CN 109955008 A CN109955008 A CN 109955008A
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- China
- Prior art keywords
- exhaust gas
- gate valve
- understructure
- sealing surface
- pipeline
- 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.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 23
- 238000003466 welding Methods 0.000 claims abstract description 54
- 238000001179 sorption measurement Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008439 repair process Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000003500 flue dust Substances 0.000 claims description 10
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 7
- 239000002808 molecular sieve Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 1
- 238000000227 grinding Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 208000037656 Respiratory Sounds Diseases 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 32
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to nuclear power station service technique fields, more particularly to a kind of welder for nuclear leve valve core for gate valve sealing surface reparation, purpose is the limitation for prior art and equipment, invent a kind of its welding equipment repaired online applied to the nuclear leve gate valve plate with radiocontamination inside nuclear power plant's radioactivity factory building, to repair sealing surface, there are the nuclear leve flashboards that crackle, larger pit or corrosion etc. can not be repaired only according to turning, grinding, filling state's kernel level gate valve plate repairs the blank in field online, while improving construction environment.It is characterized by: it includes understructure, shell mechanism, welding machine and exhaust gas adsorption structure；Since the build-up welding apparatus can be transported into inside nuclear power plant's workshop, contaminated valve plate does not have to take out workshop and can repair online, and equipment of the effective solution with radiocontamination can not take outside workshop the problem for carrying out off-line maintenance out of.
Description
Technical field
The invention belongs to nuclear power station service technique fields, and in particular to a kind of for nuclear leve valve core for gate valve sealing surface reparation
Welder.
Background technique
At present is generallyd use for the reparation of the non-nuclear leve gate valve plate sealing surface of conventional thermal power plant or chemical plant offline add
The mode of work.It is shallower for sealing surface of valve plate surface crater, scratch, grinding can be directly used or turning adds the mode of grinding
It is handled.In the case of pit or deeper scratch, sealing surface entirety turning is clean, exposing valve plate matrix is generallyd use,
Pile-up welding hard alloy later, and turning grinding seal surface makes angle between its valve plate angle and sealing surface of seat match.It is welded
Method generallys use manual build up welding or oxyacetylene torch automatic welding.
In terms of current status, traditional welding equipment and technique have its limitation.It is stained in nuclear power plant with radioactivity
Dirty nuclear leve equipment forbids taking out of outside radioactivity factory building, therefore utilizes traditional automatic welding according to related management regulation
It is infeasible for connecing equipment and carrying out offline repair.
There is high requirement for the control of flue dust in nuclear power plant's radioactivity factory building, and equipment is numerous in workshop, space
It is narrow, it is desirable that the volume of welding equipment cannot be too big.Traditional automatic welding equipment integrated level is not high, and space occupied is big, weldering
Flue dust splashes when connecing operation, it is difficult to meet the requirement inside nuclear power plant's workshop for weld job.
In addition, nuclear leve gate valve plate size is larger, manual build up welding heavy workload, labor intensity is high, and nuclear leve gate valve plate
More demanding for the built-up welding of sealing surface, different welders are due to individual difference, and surfacing quality is irregular, poor repeatability, therefore
For large scale nuclear leve flashboard for sluice valve, the mode of manual build up welding and undesirable is taken.
In order to overcome the limitation of process above and equipment, needs to invent one kind and repaired online applied to nuclear leve gate valve plate
Welder.
Summary of the invention
It is an object of the invention to the limitations for prior art and equipment, invent a kind of applied to nuclear power plant's radioactivity
Its welding equipment that nuclear leve gate valve plate inside workshop with radiocontamination is repaired online is split with repairing sealing surface presence
The nuclear leve flashboard that line, larger pit or corrosion etc. can not be repaired only according to turning, grinding, filling state's kernel level gate valve plate are repaired online
The blank in multiple field, while improving construction environment.
The present invention is implemented as follows:
A kind of welder for nuclear leve valve core for gate valve sealing surface reparation, including understructure, shell mechanism, welding machine and
Exhaust gas adsorption structure；Understructure is integral type frame structure, for integrating welding machine and exhaust gas adsorption structure, while being shell knot
Structure, welding machine and exhaust gas adsorption structure provide support platform；Welding machine is fixed on understructure, close for realizing nuclear leve valve core for gate valve
Weld job in cover repair process；Exhaust gas adsorption device is fixed on understructure, for adsorbing welding process generation
Particulate matter in exhaust gas；Shell mechanism is fixed on understructure, is coated on the periphery of welding machine and exhaust gas adsorption structure, and being used for will
The whole flue dust generated during weld job are coated on inside, and flue dust is prevented to be dissipated to hall space.
Understructure as described above includes girder steel, steel loop, channel steel and base body；Base body generally rectangular slab
Shape, upper surface are used to support shell mechanism, welding machine and exhaust gas adsorption structure；Girder steel shares two, respectively along base body upper end
The diagonal line in face is arranged, for increasing the intensity of base body；There are four steel loop is total, it is separately positioned on four angles of base body
On, for connecting suspender；Channel steel shares two, is arranged respectively along base body length direction, is fixed on the lower end of base body
On face；The spacing of two crane arms of spacing and fork truck between two channel steels matches, and the size of channel steel prevents from pitching with fork truck
The crane arm size of vehicle matches, and understructure integrally occurs sliding, rolls when for transporting, and prevents security risk.
Shell mechanism as described above includes shell, eyeshield observation window and can push-pull door；The generally hollow side of shell
Body, lower ending opening are mounted on understructure；Square hole is offered in the middle part of front end face, it can push-pull door for installing；Before
The right part of end face is provided with square hole, and the parameter for installing welding machine regulates and controls panel；Shell is used for welding machine and exhaust gas absorption knot
Structure plays coating function；Can push-pull door be mounted in the square hole of housing central section, facilitate personnel to pass in and out to adjust the position of weldment；
Eyeshield observation window, which is mounted on, to be made on push-pull door of dark glass, with facilitate to entire welding process carry out observation and
Control.
Shell as described above is made of pressing sheet material welding.
Exhaust gas adsorption structure as described above includes the first pipeline, the first drexel bottle, the second pipeline, the second drexel bottle, the
Three pipelines, active carbon filter screen and molecular sieve；First pipeline is pipe inverted " u "-shaped, and inlet is provided with exhaust fan, for sucking welding
Exhaust gas afterwards, exit are inserted into the first drexel bottle；Water is housed, for adsorbing bulky grain ash in exhaust gas inside the first drexel bottle
Dirt is immersed in the water at the first tube outlet；Second pipeline is pipe inverted " u "-shaped, and inlet is located at the ullage of the first drexel bottle,
Inlet is provided with exhaust fan, and for being drawn through the exhaust gas after the first drexel bottle is adsorbed, exit is inserted into the second drexel bottle
In；It is immersed in the water at the second tube outlet equipped with water for adsorbing the bulky grain dust in exhaust gas inside second drexel bottle；The
Three pipelines are inverted "L" shape pipe, and inlet is located at the top of the second drexel bottle, and inlet is provided with exhaust fan, for being drawn through
Exhaust gas after second drexel bottle absorption；Middle part is provided with active carbon filter screen and molecular sieve, for adsorbing the ash of the little particle in exhaust gas
Dirt；Exit is provided with exhaust fan, for gas in third pipeline to be discharged.
The beneficial effects of the present invention are:
Since the build-up welding apparatus can be transported into inside nuclear power plant's workshop, contaminated valve plate can be online without taking out workshop
It repairs, equipment of the effective solution with radiocontamination can not take outside workshop the problem for carrying out off-line maintenance out of；
Space occupied is saved on integrated frame since the build-up welding apparatus is highly integrated, fork truck is convenient to and row is hung
Start shipment, it is easier in layout hall space narrow in nuclear power plant.
Due to devise can plug-type door type structure and de-dusting cycle system, which successfully meets factory, nuclear power plant
For the high standard and high request of flue dust control inside room, built-up welding space interior flue dust closed cycle is realized, welding is improved
Operating environment.
Detailed description of the invention
Fig. 1 is a kind of vertical view of the understructure of welder for nuclear leve valve core for gate valve sealing surface reparation of the invention
Figure；
Fig. 2 is a kind of main view of the understructure of welder for nuclear leve valve core for gate valve sealing surface reparation of the invention
Figure；
Fig. 3 is a kind of main view of the shell mechanism of welder for nuclear leve valve core for gate valve sealing surface reparation of the invention
Figure；
Fig. 4 is a kind of waste gas adsorption system of welder for nuclear leve valve core for gate valve sealing surface reparation of the invention
Structural schematic diagram.
Wherein: 1. girder steels, 2. steel loops, 3. channel steels, 4. base bodies, 5. shells, 6. eyeshield observation windows, 7. can be plug-type
Door, 8. first pipelines, 9. first drexel bottles, 10. second pipelines, 11. second drexel bottles, 12. third pipelines, 13. active carbon filtrations
Net, 14. molecular sieves.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
A kind of welder for nuclear leve valve core for gate valve sealing surface reparation, including understructure, shell mechanism, welding machine and
Exhaust gas adsorption structure.Understructure is integral type frame structure, for integrating welding machine and exhaust gas adsorption structure, while being shell knot
Structure, welding machine and exhaust gas adsorption structure provide support platform.Welding machine is fixed on understructure, close for realizing nuclear leve valve core for gate valve
Weld job in cover repair process.Exhaust gas adsorption device is fixed on understructure, for adsorbing welding process generation
Particulate matter in exhaust gas.Shell mechanism is fixed on understructure, is coated on the periphery of welding machine and exhaust gas adsorption structure, and being used for will
The whole flue dust generated during weld job are coated on inside, and flue dust is prevented to be dissipated to hall space.
Welding machine uses existing design, including cooling water system, host, built-up welding powder conveying system, parameter regulation panel, weldering
Part frock clamp, the source of welding current, complete set of equipments can be purchased from the market.
As depicted in figs. 1 and 2, the understructure includes girder steel 1, steel loop 2, channel steel 3 and base body 4.Pedestal master
The generally rectangle tabular of body 4, upper surface are used to support shell mechanism, welding machine and exhaust gas adsorption structure.Girder steel 1 shares two,
The diagonal line along 4 upper surface of base body is arranged respectively, for increasing the intensity of base body 4.There are four steel loop 2 is total, respectively
It is arranged on four angles of base body 4, for connecting suspender.Channel steel 3 shares two, respectively along 4 length direction of base body
Setting, is fixed on the lower end surface of base body 4.Spacing and the spacing phase of two crane arms of fork truck between two channel steels 3
Matching, size and the fork truck of channel steel 3 prevent the crane arm size of fork truck from matching, and understructure is integrally slided when for transporting
Dynamic, inclination, prevents security risk.
As shown in figure 3, the shell mechanism includes shell 5, eyeshield observation window 6 and can push-pull door 7.Shell 5 is whole
For hollow square body, lower ending opening is mounted on understructure 1；Square hole is offered in the middle part of front end face, it can for installing
Push-pull door 7；The right part of front end face is provided with square hole, and the parameter for installing welding machine regulates and controls panel.Shell 5 is used for welding machine
Coating function is played with exhaust gas adsorption structure.Can push-pull door 7 be mounted in the square hole at the middle part of shell 5, facilitate personnel to pass in and out with
Adjust the position of weldment.Eyeshield observation window 6, which is mounted on, to be made on push-pull door 7 of dark glass, to facilitate to entirely applying
Weldering process is observed and is controlled.
In the present embodiment, shell 5 is made of pressing sheet material welding.
As shown in figure 4, the exhaust gas adsorption structure includes the first pipeline 8, the first drexel bottle 9, the second pipeline 10, second
Drexel bottle 11, third pipeline 12, active carbon filter screen 13 and molecular sieve 14.First pipeline 8 is pipe inverted " u "-shaped, and inlet is provided with
Exhaust fan, for sucking the exhaust gas after welding, exit is inserted into the first drexel bottle 9.Water is housed inside the first drexel bottle 9,
For adsorbing bulky grain dust in exhaust gas, 8 exit of the first pipeline is immersed in the water.Second pipeline 10 is pipe inverted " u "-shaped, inlet
Positioned at the ullage of the first drexel bottle 9, inlet is provided with exhaust fan, after being drawn through the first drexel bottle 9 absorption
Exhaust gas, exit are inserted into the second drexel bottle 11.Water is housed, for adsorbing the bulky grain in exhaust gas inside the second drexel bottle 11
Dust, 10 exit of the second pipeline are immersed in the water.Third pipeline 12 is inverted "L" shape pipe, and inlet is located at the second drexel bottle 11
Top, inlet are provided with exhaust fan, for being drawn through the exhaust gas after the second drexel bottle 11 is adsorbed；Middle part is provided with active carbon
Strainer 13 and molecular sieve 14, for adsorbing the little particle dust in exhaust gas；Exit is provided with exhaust fan, is used for third pipeline
Gas is discharged in 12.
Implementation method of the invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-mentioned realities
Example is applied, it within the knowledge of a person skilled in the art, can also be without departing from the purpose of the present invention
Various changes can be made.The content that description in the present invention is not described in detail can use the prior art.
Claims (5)
1. a kind of welder for nuclear leve valve core for gate valve sealing surface reparation, it is characterised in that: it includes understructure, shell
Structure, welding machine and exhaust gas adsorption structure；Understructure is integral type frame structure, for integrating welding machine and exhaust gas adsorption structure,
Support platform is provided simultaneously for shell mechanism, welding machine and exhaust gas adsorption structure；Welding machine is fixed on understructure, for realizing core
Weld job in grade valve core for gate valve sealing surface repair process；Exhaust gas adsorption device is fixed on understructure, for adsorbing weldering
The particulate matter in exhaust gas that termination process generates；Shell mechanism is fixed on understructure, is coated on welding machine and exhaust gas adsorption structure
Periphery prevent flue dust to be dissipated to hall space for the whole flue dust generated during weld job to be coated on inside.
2. the welder according to claim 1 for the sealing surface reparation of nuclear leve valve core for gate valve, it is characterised in that: described
Understructure include girder steel (1), steel loop (2), channel steel (3) and base body (4)；Base body (4) generally rectangular slab
Shape, upper surface are used to support shell mechanism, welding machine and exhaust gas adsorption structure；Girder steel (1) shares two, respectively along base body
(4) the diagonal line setting of upper surface, for increasing the intensity of base body (4)；There are four steel loop (2) is total, it is separately positioned on bottom
On four angles of seat main body (4), for connecting suspender；Channel steel (3) shares two, and along base body (4), length direction is set respectively
It sets, is fixed on the lower end surface of base body (4)；The spacing of two crane arms of spacing and fork truck between two channel steels (3)
Match, size and the fork truck of channel steel (3) prevent the crane arm size of fork truck from matching, and understructure is integrally sent out when for transporting
Raw sliding rolls, and prevents security risk.
3. the welder according to claim 1 for the sealing surface reparation of nuclear leve valve core for gate valve, it is characterised in that: described
Shell mechanism include shell (5), eyeshield observation window (6) and can push-pull door (7)；The generally hollow square body of shell (5),
Lower ending opening is mounted on understructure (1)；Square hole is offered in the middle part of front end face, it can push-pull door (7) for installing；
The right part of front end face is provided with square hole, and the parameter for installing welding machine regulates and controls panel；Shell (5) is used to inhale welding machine and exhaust gas
Attached structure plays coating function；Can push-pull door (7) be mounted in the square hole in the middle part of shell (5), facilitate personnel to pass in and out with adjust
The position of weldment；Eyeshield observation window (6), which is mounted on, to be made on push-pull door (7) of dark glass, to facilitate to entirely applying
Weldering process is observed and is controlled.
4. the welder according to claim 3 for the sealing surface reparation of nuclear leve valve core for gate valve, it is characterised in that: described
Shell (5) using pressing sheet material welding be made.
5. the welder according to claim 1 for the sealing surface reparation of nuclear leve valve core for gate valve, it is characterised in that: described
Exhaust gas adsorption structure include the first pipeline (8), the first drexel bottle (9), the second pipeline (10), the second drexel bottle (11), third
Pipeline (12), active carbon filter screen (13) and molecular sieve (14)；First pipeline (8) is pipe inverted " u "-shaped, and inlet is provided with pumping
Fan, for sucking the exhaust gas after welding, exit is inserted into the first drexel bottle (9)；Water is housed inside the first drexel bottle (9),
For adsorbing bulky grain dust in exhaust gas, the first pipeline (8) exit is immersed in the water；Second pipeline (10) is pipe inverted " u "-shaped, is entered
It is located at the ullage of the first drexel bottle (9) at mouthful, inlet is provided with exhaust fan, for being drawn through the first drexel bottle (9)
Exhaust gas after absorption, exit are inserted into the second drexel bottle (11)；Water is housed inside the second drexel bottle (11), it is useless for adsorbing
Bulky grain dust in gas, the second pipeline (10) exit are immersed in the water；Third pipeline (12) is inverted "L" shape pipe, inlet position
In the top of the second drexel bottle (11), inlet is provided with exhaust fan, after being drawn through the second drexel bottle (11) absorption
Exhaust gas；Middle part is provided with active carbon filter screen (13) and molecular sieve (14), for adsorbing the little particle dust in exhaust gas；Exit is set
It is equipped with exhaust fan, for gas in third pipeline (12) to be discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711402656.6A CN109955008B (en) | 2017-12-22 | 2017-12-22 | Welding device for repairing valve core sealing surface of nuclear-grade gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711402656.6A CN109955008B (en) | 2017-12-22 | 2017-12-22 | Welding device for repairing valve core sealing surface of nuclear-grade gate valve |
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| Publication Number | Publication Date |
|---|---|
| CN109955008A true CN109955008A (en) | 2019-07-02 |
| CN109955008B CN109955008B (en) | 2024-07-16 |
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