CN109465577A - A kind of ultra-thin alloy welding deposit repairs cooling system and cooling means - Google Patents
A kind of ultra-thin alloy welding deposit repairs cooling system and cooling means Download PDFInfo
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- CN109465577A CN109465577A CN201910029806.6A CN201910029806A CN109465577A CN 109465577 A CN109465577 A CN 109465577A CN 201910029806 A CN201910029806 A CN 201910029806A CN 109465577 A CN109465577 A CN 109465577A
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- 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
- B23K37/003—Cooling means
Abstract
The invention discloses a kind of ultra-thin alloy welding deposits to repair cooling system and cooling means.System is mainly welded clamping cooling system, trailing type air jet cooling system and automatic cooling control system by flexible runner and is formed.The cooling liquid flowing channel of flexible runner welding clamping cooling system is arranged in independent red copper key, the soft readjustment that can be radiated with the mobile realization of red copper key, to remain to cooling by the short distance of folder curved surface alloy；Trailing type air jet cooling system is mounted on gun rack, can be with the mobile constant speed movement of welding gun, and can vertically penetrate jet pipe at a distance from welding gun and the angle of side-blown cooling spray pipe realizes cooling adjust by automatically adjusting；System can plan automatically cooling technique for the heat-transfer character of different leaves, realize that the control to pressure, flow velocity, jet pipe distance and angle realizes that the real-time dynamic of closed circuit controls by automatic cooling control system, to realize the cooling adjusting in welding process, reach preferable REPAIR WELDING effect.
Description
Technical field
The invention belongs to aeronautical maintenance technical field, cooling system and cold is repaired more particularly to a kind of ultra-thin alloy welding deposit
But method.
Background technique
Aero-engine compressor blade works under the complex environment of high temperature and high pressure synergy for a long time, and blade is frequent
Various different degrees of damages occur.There is the extensive market demand to repair with the damaged blade for repairing value,
Approved by industry.Microbeam pulsed plasma arc welding (MPAW) good arc stability under low current makes it be very suitable to weld
Ultra-thin alloy is connect, is the mainstream means of current blade REPAIR WELDING.Bath temperature is higher when due to welding, and titanium alloy blade holds very much
The easily impurity such as sucking N, H, O, influence welding quality.It can not achieve the effect that completely isolated, use using inert gas shielding
Vacuum welding Environmental costs are higher, and the structure of certain automatic welding guns and the method for operation are not easy to implement.For ultra-thin titanium alloy
Bead weld repair increases fixture cooling velocity to reach better welding quality, can be effectively reduced welding section 250 DEG C with
Upper residence time reduces the sucking of impurity.In addition, the formation of α-Ti can also be promoted by accelerating cooling velocity, weldering is effectively promoted
Connect quality.And for nickel-base alloy, adjusting control cooling rate can control the precipitation ratio of Nb in alloy, after influencing welding
Toughness and intensity.Therefore, for different-alloy blade, it is desirable that in the welding process being capable of regulation and control cooling rate.
Further, since the thermal coefficient of titanium alloy and nickel-base alloy is all very low, molten bath is conducted outwardly by base material
Heat transfer effect is poor, and needing to design welding runner keeps fluid heat transfer offset more closer better from molten bath.Secondly as blade is all tool
Cambered free form surface is needed to clamp blade using a kind of flexible clamping structure, makes clamping face and leaf in clamping
Piece has good contact compactness, is conducive to the heat exchange in molten bath, it is therefore desirable to a kind of efficient REPAIR WELDING cooling system.
Summary of the invention
The invention discloses a kind of ultra-thin alloy welding deposits to repair cooling system and cooling means to solve the above-mentioned problems.System
System mainly welds clamping cooling system, trailing type air jet cooling system and automatic cooling control system group by flexible runner
At.The cooling liquid flowing channel of flexible runner welding clamping cooling system is arranged in independent red copper key, can be with red copper key
The mobile soft readjustment for realizing heat dissipation, to remain to cooling by the short distance of folder curved surface alloy；Trailing type air jet
Cooling system is mounted on welding gun, can be with the mobile constant speed movement of welding gun, and passes through automatic adjustment vertical fluid jet pipe and weldering
The distance of rifle and the angle of side-blown cooling spray pipe realize that convection current is cooling；Cooling is planned automatically for the heat-transfer character of different leaves
Technique realizes that the reality of closed circuit is realized in the control to pressure, flow velocity, jet pipe distance and angle by automatic cooling control system
When dynamic control, thus realize in welding process it is cooling adjust, reach good REPAIR WELDING effect.
A kind of ultra-thin alloy welding deposit reparation cooling system, is mainly used for the cooling of the ultra-thin alloy welding deposit repair process of aviation and adjusts
Section specifically includes that flexible runner clamping cooling system, trailing type air jet cooling system and automatic cooling control system,
The flexible runner clamping cooling system includes clamping fixture table (1), and clamping device fixed beam (2) and sliding are equipped on clamping fixture table
Guide rail (29), slide rail end are equipped with set lever (3), and welding clamping device is mounted on slide rail (29), weld clip
Holding mechanism includes symmetrically arranged two clamping piece mounting bases, and clamping piece mounting base can be moved along slide rail, clamping piece installation
The symmetrically arranged flexible clamping structure being made of multiple independent heat dissipations red copper key (23,31) is fixedly installed on seat respectively
(in 33 dotted lines), heat dissipation red copper key inside are equipped with coolant flow channel (39), radiate and be provided between red copper key and clamping piece mounting base
Holddown spring (20), the coolant flow channel between the red copper key that radiates is using being connected in parallel；The trailing type air jet cooling system
(41) main vertical fluid cooling spray pipe (48), the side-blown cooling spray pipe (47), gas shielded cover by being mounted on gun rack (51)
(42), gas shielded nozzle (43,44), air inlet pipe (49,50) composition；Automatic cooling control system include coolant conveying cavity (4,18,
5,17), coolant recirculation pump station (6,6-1), coolant liquid heat-exchanger tank (10), temperature sensor (25), control pipeline (7,7-1,
11,13) and intelligent controller (12), temperature sensor real-time detection weldment temperature is sent to intelligent controller, intelligent controller
Coolant temperature, flow velocity and pressure are controlled, by symmetrical coolant inlet pipe road (18,4) and output pipe (17,5) to scattered
The coolant liquid of the alternating temperature of hot red copper key conveying circulation, intelligent controller also adjust simultaneously vertical cooling spray pipe at a distance from welding gun,
Pressure, the angle and pressure of side-blown cooling spray pipe are sprayed, and then adjusts the rate of heat dispation of system.
Red copper key (23,31) with coolant flow channel is symmetrically distributed, and flexible runner clamping cooling system is symmetrical arranged
Two cooling circuits.
Coolant liquid inflow and outflow pipeline (21,22,21-1,22-1) between each heat dissipation red copper key is in charge of with corresponding inflow
(19,30), outflow, which are in charge of to use between (32,28), to be slidably and sealingly connected with, and can be in charge of upper corresponding inflow and outflow branch respectively
Inner telescoping tube movement cooperates the holddown spring (20) at each copper key rear portion to realize flexible fitting target repairing alloy thin plate (26),
Reach the target for the uniform flexible adjustable that radiates.
Coolant liquid unilateral side circuit by coolant flow channel (39) inside red copper key, the coolant liquid inflow with branch pipe be in charge of (19),
(32), coolant recirculation pump station (6-1) and coolant liquid heat-exchanger tank (10) composition are in charge of in outflow with branch pipe, realize cooling
The unilateral circulation loop of system；Symmetrically, the coolant flow channel inside other side red copper key is flowed by the coolant liquid with branch pipe
It is in charge of (30) and (28), coolant recirculation pump station (6) and coolant liquid heat-exchanger tank is in charge of in the coolant liquid outflow with branch pipe
(10) it connects, realizes the other side circulation loop of cooling system.
Outside inputs the coolant liquid of specific temperature to heat-exchanger tank by the coolant inlet pipe road (14) of heat-exchanger tank
(10), it and by coolant output tube road (15) by the coolant liquid for playing supercooling effect is exported from heat-exchanger tank (10), shape
At external coolant liquid circulation loop.
System can automatically adjust the water of compressed gas vertical fluid jet pipe and welding gun according to the heat transfer parameter of different blades
Flat distance, injection pressure and angle and injection pressure that side-blown jet pipe can be automatically adjusted.
Vertical fluid jet pipe (48) and side-blown jet pipe (47) are mounted on gun rack (51), and when welding can be with the shifting of gun rack
It is dynamic and with welding gun (45) constant speed movement, side-blown jet pipe can carry out multiple degrees of freedom rotation on movable sealing joint (44).Pass through intelligence
Can control device can automatically adjust the horizontal distance of vertical fluid jet pipe and welding gun and the spray angle of side-blown jet pipe.
Ultra-thin alloy welding deposit repairs the cooling means of cooling system, comprising the following steps:
(1) before welding carries out, blade model is inputted into intelligent controller；
(2) the intelligent controller cooling technique suitable according to the planning of blade model is included whether using water cooling and air cooling, is adopted
With the cooling parameter of runner when water cooling and using jet pipe when convection current cooling at a distance from welding gun, angle parameter；
(3) temperature sensor (25) real-time detection weldment temperature in welding process, is sent to intelligent controller；
(4) intelligent controller control coolant temperature, flow velocity and pressure, while controlling the pressure of gas cooling jet pipe, angle
Degree and distance；
(5) alternating temperature recycled by coolant inlet pipe road (18,4) and output pipe (17,5) to heat dissipation red copper key conveying
Coolant liquid, and then adjust red copper key rate of heat dispation；By adjusting vertical fluid jet pipe (48), side-blown jet pipe (47) angle,
Adjust gaseous exchange cooling efficiency；By adjusting the horizontal distance of vertical fluid jet pipe (48) and welding gun to adapt to different leaves
Molten bath radius.
The present invention is applicable not only to the REPAIR WELDING of blade of aviation engine, applies also for 5mm or less nickel-base alloy and titanium
The cooling of the welding process of latten is adjusted.It, can be for different-alloy using cooling system and cooling means of the invention
Heat-transfer character, using targetedly cooling technique, so that titanium can be reduced for titanium alloy by effectively promoting or adjust cooling rate
The impurity sucked in alloy cooling procedure；For nickel-base alloy, the precipitation ratio of Nb of the nickel-base alloy in process of setting can control
Example, to promote REPAIR WELDING effect.Using the present invention for promoting blade of aviation engine repair quality and ultra-thin alloy
REPAIR WELDING effect be of great significance.
Detailed description of the invention
Fig. 1 is system overall plan view of the invention
Fig. 2 is partial enlarged view when clamping blade
Fig. 3 is unilateral clamp structure and cooling line Local map
Fig. 4 is trailing type air jet cooling system structure figure
Fig. 5, Fig. 6 are overall structure figure of the present invention
Fig. 7 is control system block diagram of the present invention
Fig. 8 is heat dissipation red copper key and its diagrammatic cross-section of the invention
Specific embodiment
With reference to the accompanying drawing with specific implementation case to a kind of ultra-thin alloy welding deposit reparation cooling system provided by the invention
And cooling means is described in detail.
The ultra-thin alloy welding deposit that the present invention announces repairs cooling system and specifically includes that flexible runner welding clamping cooling system
System, trailing type air jet cooling system and automatic cooling control system, the flexible runner welding clamping cooling system
Including clamping fixture table 1, clamping device fixed beam 2 and slide rail 29 are installed on clamping fixture table, slide rail end is equipped with locking hand
Handle 3, welding clamping device are mounted on slide rail 29, and welding clamping device includes symmetrically arranged two clamping pieces installation
Seat, clamping piece mounting base can be moved along slide rail, be fixedly installed with respectively in clamping piece mounting base symmetrically arranged by multiple
It is independent heat dissipation red copper key composition flexible clamping structure, heat dissipation red copper key inside be equipped with coolant flow channel 37, heat dissipation red copper key with
Holddown spring 20 is provided between clamping piece mounting base, the coolant flow channel between the red copper key that radiates, which uses, to be connected in parallel；It is described with
The main vertical fluid cooling spray pipe 48 and side-blown cooling spray pipe by being mounted on gun rack 51 of dynamic formula air jet cooling system
47 compositions；Automatic cooling control system includes coolant conveying cavity 4,18,5,17, coolant recirculation pump station 6,6-1, the friendship of coolant liquid heat
Change pond 10, temperature sensor 26, control pipeline 7,7-1,11,13 and intelligent controller 12, temperature sensor real-time detection weldment
Temperature is sent to intelligent controller, and intelligent controller controls coolant temperature, flow velocity and pressure, defeated by symmetrical coolant liquid
Enter pipeline 18,4 and output pipe 17,5 to the coolant liquid of the alternating temperature of heat dissipation red copper key conveying circulation, intelligent controller is also adjusted simultaneously
Whole vertical cooling spray pipe adjusts dissipating for system at a distance from welding gun, injection pressure, the angle and pressure of side-blown cooling spray pipe
Hot rate.
Further, clamping element mounting base top is equipped with groove, and the moveable heat dissipation red copper key is equipped in groove, is dissipated
Hot red copper key can be moved along the direction vertical with workpiece in a groove, and groove upper surface is fixed with the fixed cover board 24,27 of heat dissipation.
Coolant liquid in heat dissipation red copper key flows out conduit 4,18 by coolant liquid and separately flows into coolant recirculation pump station 6,6-1, then by even
It connects coolant recirculation pump station and enters coolant liquid heat-exchanger tank 10, coolant liquid exchanges pond and connect with external cooling fluid supply station, passes through
The coolant liquid of heat exchange flows into coolant recirculation pump station, then flows into the cooling of heat dissipation red copper key via coolant liquid inflow catheter stream and flow
Road realizes that the temperature to heat dissipation red copper key is adjusted.
When welding beginning, automatic control system can export the cooling ginseng of planning according to the heat transfer parameter of different blades
Number instruction controls the horizontal distance of compressed gas vertical fluid jet pipe and welding gun and the angle of injection pressure and side-blown jet pipe
With injection pressure.
In the welding process, intelligent controller 12 passes through the temperature sensor real-time detection that heat dissipation red copper key end is arranged in
The temperature of workpiece, by cooling system control route 7,11,7-1 control the coolant liquid temperature that heat-exchanger tank is output to heat dissipation red copper key
Degree, pressure and flow velocity realize the control to heat dissipation red copper key temperature, and the temperature feedback situation in molten bath adjusts cooling air in real time
Flow velocity and pressure parameter, form the closed-loop control that targetedly welding is cooling.
The clamp structure of flexible runner clamping cooling system is symmetrical structure, and red copper key with coolant flow channel etc. is at symmetrical
The runner of distribution, two cooling circuits of symmetric design, each red copper key is connected using parallel form.Coolant line is arranged in
Among the clamping devices of compositions such as moveable multiple independent red copper keys 23,31, by a large amount of Welding experiments early period and heat transfer
Modeling and simulating calculates, and has carried out accurate design to runner positions and dimensions, cooling effect is more efficient in time.Furthermore it is each to dissipate
Coolant line 21 between hot red copper key, 22,21-1,22-1 with it is corresponding flow into, between outflow branch pipe using being slidingly sealed
Connection, cooling tube on copper key can the stretching motion in inflow and outflow branch pipe respectively, cooperate the holddown spring on copper key to realize soft
Property fitting target repair thin plate 26, reach the target for the uniform flexible adjustable that radiates.
By coolant flow channel 39 inside red copper key, the coolant liquid inflow with branch pipe is in charge of 19, has in coolant liquid unilateral side circuit
32, coolant recirculation pump station 6-1 is in charge of in the outflow of branch pipe and coolant liquid heat-exchanger tank 10 forms, and realizes the unilateral side of cooling system
Circulation loop；Symmetrically, the coolant flow channel inside other side red copper key is in charge of 30 and band by the coolant liquid inflow with branch pipe
There is the coolant liquid outflow of branch pipe to be in charge of 28, coolant recirculation pump station 6 and coolant liquid heat-exchanger tank 10 connects, realization cooling system
Other side circulation loop.
Heat-exchanger tank 10 is connected to external cooling fluid supply station by coolant inlet pipe road 14 and output pipe 15, and heat is handed over
Pond is changed with ventilation opening 52.Coolant liquid is inputted the coolant liquid of specific temperature to hot through intake line 14 by external coolant liquid supply station
Pond 10 is exchanged, and is exported the coolant liquid for playing supercooling effect from heat-exchanger tank 10 by coolant output tube road 15, shape
At external coolant liquid circulation loop.
Vertical fluid jet pipe 48 and side-blown jet pipe 47 are mounted on gun rack 51, when welding can with the movement of gun rack and with
45 constant speed movement of welding gun, side-blown jet pipe can carry out multiple degrees of freedom rotation on movable sealing joint 44.It can by intelligent controller
Automatically adjust the horizontal distance of vertical fluid jet pipe and welding gun and the spray angle of side-blown jet pipe.
Ultra-thin alloy welding deposit repair the cooling means of cooling system the following steps are included:
(1) before welding carries out, blade model is inputted into intelligent controller；
(2) the intelligent controller cooling technique suitable according to the planning of blade model is included whether using water cooling and air cooling, is adopted
With the cooling parameter of runner when water cooling and using jet pipe when convection current cooling at a distance from welding gun, angle parameter；
(3) 25 real-time detection weldment temperature of temperature sensor in welding process, is sent to intelligent controller；
(4) intelligent controller control coolant temperature, flow velocity and pressure, while controlling the pressure of gas cooling jet pipe, angle
Degree and distance；
(5) the cold of the alternating temperature recycled is conveyed to heat dissipation red copper key by coolant inlet pipe road 18,4 and output pipe 17,5
But liquid, and then adjust the rate of heat dispation of red copper key；By adjusting vertical fluid jet pipe 48,47 angle of side-blown jet pipe, gas is adjusted
Convection current cooling efficiency；The molten bath radius of different leaves is adapted to by adjusting the horizontal distance of vertical fluid jet pipe 48 and welding gun.
It is illustrated by taking CFM56 aero-engine compressor blade as an example, the reparation of system is using steps are as follows:
CFM56 engine compressor blade shares 9 grades, and wherein 1-3 grades are Ti811 titanium alloy blade, and 4-9 grades are
INCONEL718 Ni-base Alloy Blades.For different alloy vanes, cooling technique is different.The reparation of system uses step
It is as follows:
(1) before carrying out blade reparation, according to installation system shown in Fig. 1, by cooling control system intelligent controller with
Welding operation control computer is connected, and the supply of coolant liquid heat-exchanger tank and recovery pipe are connected with external supply station, examined
It is normal to look into temperature, pressure flow working sensor.
(2) compressor blade to be repaired is correctly clamped among red copper key, as shown in Figure 2, and by respective vanes type
In the intelligent controller of number input automatic control system, controller calls corresponding cooling parameter, output cooling according to blade model
The cooling flow velocity of flow velocity, pressure, temperature and air, pressure, jet pipe distance and angle parameter.
Since titanium alloy and nickel-base alloy have different cooling requirements, titanium alloy needs to be cooled fast to 250 DEG C, if to be repaired
Compound leaf piece is titanium alloy blade, and intelligent controller will be cooling with the cooling Compound cooling combined of follow-up jet using flexible runner
Mode, and according to the corresponding heating radius parameter adjust automatically vertical fluid jet pipe of the model of blade at a distance from welding gun, and
The angle of side-blown jet pipe, meanwhile, it is instructed according to the cooling parameter that blade model data exports flexible runner coolant liquid, controls runner
Interior cooling liquid speed and temperature, starts to be welded.
For Ni-base Alloy Blades, the amount of precipitation control of the Nb when emphasis of cooling is solidification, so cooling procedure with
Based on before solidification, molten bath is dispelled by air in order to prevent, so not enabling follow-up jet cooling system, only enables flexible runner
Welding clamping cooling system is cooled down.When blade to be repaired is Ni-base Alloy Blades, intelligent controller only enables flexible stream
Road welds cooling system, is instructed, is controlled in runner according to the cooling parameter that blade model data exports flexible runner coolant liquid
Cooling liquid speed and temperature start to be welded.
(3) for welding gun when being worked, the bath temperature data that temperature sensor monitors constantly feed back to control centre
Computer, control centre's computer compare measurement data and material welding parameter, generate feedback adjustment signal and are distributed to intelligent control
Device, intelligent controller carry out the automatic adjustment of coolant temperature and speed according to control pcs signal, for titanium alloy blade, such as
Fruit bath temperature is higher than some setting range of phase transition temperature or more, then accelerates flow velocity and reduce the inlet temperature of coolant liquid, make
Turbulent heat transfer enhances in runner, while accelerating the flow velocity of servo-actuated cooling system air.It, can be according to technique for Ni-base Alloy Blades
Increase in demand reduces flow velocity and coolant temperature to form the closed-loop control of rate of heat dispation, and then controls the precipitation ratio of Nb
Example.Coolant liquid near the contact surface of red copper key front end and blade by carrying out short distance heat exchange, quickly inside each red copper key
Take away the heat in molten bath.In the whole welding process, measuring signal is constantly transferred to control computer by sensor, controls computer root
Issue new adjustment signal to intelligent controller again according to temperature parameter comparison, such process repeatedly, until welding region temperature
Reach ideal temperature range.
(4) in the welding process, external cooling fluid supply passes through coolant inlet pipe road and output pipe respectively and hands over to heat
Pond supply and recycling coolant liquid are changed, coolant liquid forms circulation in heat-exchanger tank, circulating pump and red copper key cooling circuit, realizes
The cooling heat spreading function of welding.
Claims (8)
1. a kind of ultra-thin alloy welding deposit repairs cooling system, it is mainly used for the cooling of the ultra-thin alloy welding deposit repair process of aviation and adjusts
Section specifically includes that flexible runner clamping cooling system, trailing type air jet cooling system and automatic cooling control system,
The flexible runner clamping cooling system includes clamping fixture table (1), and clamping device fixed beam (2) and sliding are equipped on clamping fixture table
Guide rail (29), slide rail end are equipped with set lever (3), and welding clamping device is mounted on slide rail (29), weld clip
Holding mechanism includes symmetrically arranged two clamping piece mounting bases, and clamping piece mounting base can be moved along slide rail, clamping piece installation
The symmetrically arranged flexible clamping structure being made of multiple independent heat dissipations red copper key (23,31) is fixedly installed on seat respectively
(in 33 dotted lines), heat dissipation red copper key inside are equipped with coolant flow channel (39), radiate and be equipped with pressure between red copper key and clamping piece mounting base
Tight spring (20), coolant flow channel between the red copper key that radiates is using being connected in parallel；The trailing type air jet cooling system master
It will be by the vertical fluid cooling spray pipe (48), side-blown cooling spray pipe (47), gas shielded cover (42), gas that are mounted on gun rack (51)
Protect nozzle (43), air inlet pipe (49,50) composition；Automatic cooling control system includes coolant conveying cavity (4,18,5,17), cooling
Liquid water circulating pump station (6,6-1), coolant liquid heat-exchanger tank (10), temperature sensor (25), control pipeline (7,7-1,11,13) and intelligence
It can control device (12).Temperature sensor real-time detection weldment temperature, is sent to intelligent controller, and intelligent controller controls coolant liquid
Temperature, flow velocity and pressure, it is defeated to heat dissipation red copper key by symmetrical coolant inlet pipe road (18,4) and output pipe (17,5)
The coolant liquid of the alternating temperature of circulation is sent, intelligent controller also adjusts vertical cooling spray pipe at a distance from welding gun, injection pressure, side simultaneously
The angle and pressure of cooling spray pipe are blown, and then adjusts the rate of heat dispation of system.
2. cooling system according to claim 1, it is characterised in that: the red copper key (23,31) with coolant flow channel is pairs of
Claim distribution, flexible runner clamping cooling system is symmetrical arranged two cooling circuits.
3. cooling system according to claim 1, it is characterised in that: the coolant liquid inflow and outflow between each heat dissipation red copper key
Pipeline (21,22,21-1,22-1) is in charge of (19,30) with corresponding inflow, outflow is in charge of between (32,28) using being slidingly sealed
Connection, and stretching motion in upper corresponding inflow and outflow branch pipe can be in charge of respectively, cooperate the holddown spring at each copper key rear portion
(20) it realizes flexible fitting target repairing alloy thin plate (26), reaches the target for the uniform flexible adjustable that radiates.
4. cooling system according to claim 3, it is characterised in that: flowed by cooling inside red copper key in coolant liquid unilateral side circuit
Road (39), (19) are in charge of in the coolant liquid inflow with branch pipe, (32), coolant recirculation pump station (6- are in charge of in the outflow with branch pipe
1) and coolant liquid heat-exchanger tank (10) forms, and realizes the unilateral circulation loop of cooling system；Symmetrically, in other side red copper key
The coolant flow channel in portion is flowed by the coolant liquid with branch pipe is in charge of (30) and (28), cold are in charge of in the coolant liquid outflow with branch pipe
But liquid water circulating pump station (6) and coolant liquid heat-exchanger tank (10) connection, realize the other side circulation loop of cooling system.
5. cooling system according to claim 1, it is characterised in that: outside passes through the coolant inlet pipe road of heat-exchanger tank
(14) coolant liquid of specific temperature is inputted to heat-exchanger tank (10), and will be played supercooling by coolant output tube road (15) and be made
Coolant liquid output from heat-exchanger tank (10) forms external coolant liquid circulation loop.
6. cooling system according to claim 1, it is characterised in that: system can according to the heat transfer parameter of different blades,
The horizontal distance of automatic adjustment compressed gas vertical fluid jet pipe and welding gun sprays pressure and can automatically adjust side-blown jet pipe
Angle and injection pressure.
7. cooling system according to claim 1, it is characterised in that: vertical fluid jet pipe (48) and side-blown jet pipe (47) peace
On gun rack (51), when welding can with the movement of gun rack and with welding gun (45) constant speed movement, side-blown jet pipe can be in activity
It seals and carries out multiple degrees of freedom rotation on joint (44).The water of vertical fluid jet pipe and welding gun can be automatically adjusted by intelligent controller
The spray angle of flat distance and side-blown jet pipe.
8. the cooling means that ultra-thin alloy welding deposit according to claim 1 repairs cooling system, comprising the following steps:
(1) before welding carries out, blade model is inputted into intelligent controller；
(2) the intelligent controller cooling technique suitable according to the planning of blade model is included whether using water cooling and air cooling, using water
Jet pipe is at a distance from welding gun, angle parameter when the cooling parameter of runner and use convection current cool down when cold；
(3) temperature sensor (25) real-time detection weldment temperature in welding process, is sent to intelligent controller；
(4) intelligent controller control coolant temperature, flow velocity and pressure, at the same control the pressure of gas cooling jet pipe, angle and
Distance；
(5) the cold of the alternating temperature recycled is conveyed to heat dissipation red copper key by coolant inlet pipe road (18,4) and output pipe (17,5)
But liquid, and then adjust the rate of heat dispation of red copper key；By adjusting vertical fluid jet pipe (48), side-blown jet pipe (47) angle, adjustment
Gaseous exchange cooling efficiency；The molten bath of different leaves is adapted to by adjusting the horizontal distance of vertical fluid jet pipe (48) and welding gun
Radius.
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| CN110802348A (en) * | 2019-11-08 | 2020-02-18 | 扬州市君瑞企业管理有限公司 | Heat dissipation device for repair welding processing of heat-resistant steel casting of steam turbine |
| CN116275866A (en) * | 2023-04-13 | 2023-06-23 | 常州本森焊业科技有限公司 | Long-life continuous casting roller prosthetic devices |
| CN117123985A (en) * | 2023-10-27 | 2023-11-28 | 内蒙古工业大学 | Welding cooling auxiliary assembly |
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