CN110656225A - Flexible heating device for local postweld heat treatment of boiler membrane type water-cooled wall - Google Patents
Flexible heating device for local postweld heat treatment of boiler membrane type water-cooled wall Download PDFInfo
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- CN110656225A CN110656225A CN201910946467.8A CN201910946467A CN110656225A CN 110656225 A CN110656225 A CN 110656225A CN 201910946467 A CN201910946467 A CN 201910946467A CN 110656225 A CN110656225 A CN 110656225A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/53—Heating in fluidised beds
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
Abstract
The invention discloses a flexible heating device for local postweld heat treatment of a boiler membrane type water-cooled wall, which comprises a substrate and a water-cooled wall assembly positioned on one side of the substrate, wherein a fixed plate positioned on one side of the water-cooled wall assembly is fixed on the side wall on one side of the substrate, a third connecting rod is fixed on one side of the fixed plate close to the water-cooled wall assembly, a motor is fixed at the end part of the third connecting rod, a disc is fixed at the driving end of the motor, a rotating rod deviating from the circle center of the disc is rotatably connected on the side wall on one side of the disc, and a T-shaped groove is formed in one side of. According to the invention, the water-cooled wall assembly is comprehensively heated by irradiating light beams emitted by the electron gun on the water-cooled wall assembly and moving the electron gun, and the heat treatment work without dead angles is carried out on the welding position; and (3) forming eddy current in the water-cooled wall assembly to perform internal resistance heat generation by moving the copper pipe coil outside the water-cooled wall assembly and introducing current into the copper pipe coil, and performing heat treatment on the welding position.
Description
Technical Field
The invention relates to the technical field of heat treatment, in particular to a flexible heating device for local postweld heat treatment of a boiler membrane water-cooled wall.
Background
The water-cooled wall is the main heated part of the boiler, and is composed of a plurality of rows of steel pipes and distributed around the hearth of the boiler. The inside of the furnace is flowing water or steam, and the outside receives the heat of the flame of the boiler furnace. Mainly absorbs the radiation heat of high-temperature combustion products in the hearth, and the working medium rises in the hearth and is heated and evaporated. The waterwalls were originally designed not to be heated, but to cool the furnace from high temperatures. Later, due to its good heat exchange function, it gradually replaced the steam drum as the main heat receiving part of the boiler. An evaporation heating surface which is laid on the inner wall of the boiler furnace and consists of a plurality of parallel tubes. The water-cooled wall is used for absorbing the radiation heat of high-temperature flame or smoke in the hearth, generating steam or hot water in the tube, reducing the temperature of the furnace wall and protecting the furnace wall. In a large-capacity boiler, the flame temperature in the boiler is very high, and the intensity of heat radiation is very high. 40-50% or more of the heat in the boiler is absorbed by the water-cooled wall. Modern water tube boilers all use water-cooled walls as the most important evaporation heating surfaces in the boiler, except for a few small-volume boilers.
Because the water wall is formed by welding a plurality of steel pipes and fins among the steel pipes, the traditional steel pipes and fins are generally made of nickel-based high-temperature alloy or heat-resistant steel materials, the welded joint part has high hardness and high residual stress and large brittleness, the water wall is easy to crack in operation if postweld heat treatment is not carried out, the existing method for carrying out the local postweld heat treatment on the water wall generally carries out heat transfer in a heat conduction mode through a heating wire or carries out heat treatment by placing a heater at a welding position, but the heat transfer mode has uneven temperature transfer, the welding position cannot be ensured to be fully heat treated, the surface of the water wall is uneven, the heater cannot be well attached to the inner wall of the welding position of the water wall, and dead corners of the heat treatment exist.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a flexible heating device for local postweld heat treatment of a boiler membrane water wall.
In order to achieve the purpose, the invention adopts the following technical scheme:
a flexible heating device for local postweld heat treatment of a boiler membrane type water-cooled wall comprises a substrate and a water-cooled wall assembly located on one side of the substrate, wherein a fixing plate located on one side of the water-cooled wall assembly is fixed on one side wall of the substrate, a third connecting rod is fixed on one side, close to the water-cooled wall assembly, of the fixing plate, a motor is fixed at the end of the third connecting rod, a disc is fixed at the driving end of the motor, a rotating rod deviating from the circle center of the disc is rotatably connected onto one side wall of the disc, a T-shaped groove is formed in one side, close to the water-cooled wall assembly, of the fixing plate, a sliding plate with a T-shaped end is arranged in the T-shaped groove in a sliding manner, one end, far away from the disc, of the rotating rod is rotatably connected with the middle of the sliding plate, a preheating mechanism, the utility model discloses a heating pipe, including heating pipe, heating plate, the heating pipe is fixed with the gathering frame in the heating pipe, the gathering frame is kept away from the one end middle part of heating pipe and is fixed with the fan, the drive end of fan sets up towards the heating pipe, a plurality of gyro wheels are installed to the one end that the slide is located T type inslot, be equipped with heating mechanism on the base plate.
Preferably, be equipped with coupling mechanism between base plate and the water-cooling wall subassembly, heating mechanism is including fixing telescopic link one on the base plate outer wall, the vertical upwards telescopic link two that is fixed with the level setting of drive end of telescopic link one, the drive end of telescopic link two is fixed with the electron gun, the perpendicular water-cooling wall subassembly setting of output of electron gun, one side that the electron gun is close to the water-cooling wall subassembly is fixed with the outlet duct that two symmetries set up, one side that the water-cooling wall subassembly was kept away from to the electron gun is fixed with the nitrogen gas jar, the output of nitrogen gas jar is connected with the tee bend, the three-way both ends respectively with the end connection of two outlet ducts, be equipped with beam expanding mirror and refractor between electron gun and the water-cooling wall subassembly in proper order, the both ends of beam expanding mirror and.
Preferably, the connecting mechanism comprises clamping plates which are symmetrically and rotatably connected with the outer walls of the two substrates, the two sockets are formed in the substrates, a U-shaped rod is inserted between the two sockets, two ends of the U-shaped rod are respectively contacted with the outer wall of one of the clamping plates, a third telescopic rod is fixed on one side of the substrate, which is far away from the clamping plates, and the driving end of the third telescopic rod is fixedly connected with the inner wall of the U-shaped rod.
Preferably, a return spring is fixed between the outer wall of each clamping plate and the base plate.
Preferably, the heating mechanism is including the copper pipe coil of cover establishing in the water-cooling wall subassembly outside, one side that the water-cooling wall subassembly was kept away from to the base plate is fixed with the connecting rod, the end fixing of connecting rod has the motor, the drive end of motor is fixed with connecting rod one, the end rotation of connecting rod one is connected with connecting rod two, the end fixing of base plate has the connecting plate, T type groove has been seted up on the outer wall of connecting plate, it has T type piece to slide in the T type groove, the one end that connecting rod one was kept away from to connecting rod two rotates with T type piece to be connected, be fixed with the dead lever between T type piece and the water-cooling wall subassembly, be equipped with cooling mechanism.
Preferably, the cooling mechanism comprises a water pump connected with an external water source, a multi-section and continuous cooling pipe is fixed at the output end of the water pump, and the cooling pipe is fixed on the outer wall of the copper pipe coil.
Compared with the prior art, the flexible heating device for the local postweld heat treatment of the membrane water wall of the boiler has the advantages that:
1. the fan drives airflow to contact with the heating pipe, the heating pipe heats the airflow, the airflow is heated and then contacts with the water-cooled wall assembly, the water-cooled wall assembly is used for preheating, energy consumed after subsequent heating is reduced, meanwhile, the sliding plate moves left and right to achieve left and right movement of the heating pipe and the fan, and preheating of a plurality of transverse positions of the water-cooled wall assembly is achieved;
2. an electron gun is arranged, light beams emitted by the electron gun are diffused through a beam expanding lens to form a larger light beam area, then are refracted through a refractor and then are projected on the outer wall of the water-cooled wall assembly, a welding position is heated through an electronic book, heat treatment after welding is carried out, meanwhile, the light beams have no dead angle, and the breadth and the depth of the heat treatment are ensured;
3. the copper pipe coils are arranged, the water-cooled wall components are positioned between the copper pipe coils, strong magnetic beams with instantly changed polarities are generated inside the copper pipe coils after alternating current is introduced into the copper pipe coils, the water-cooled wall components move in the copper pipe coils, the magnetic beams penetrate through the whole water-cooled wall components, the direction of the inside of the water-cooled wall components is opposite to the heating current, and because resistors exist in the water-cooled wall components, a large amount of joule heat can be generated, so that the heat treatment is carried out on the welded positions through the rise of the temperature of the water-cooled wall components;
in conclusion, the water-cooled wall component is comprehensively heated by irradiating the light beams emitted by the electron gun on the water-cooled wall component and moving the electron gun, and the welding position is subjected to heat treatment without dead angles; and (3) forming eddy current in the water-cooled wall assembly to perform internal resistance heat generation by moving the copper pipe coil outside the water-cooled wall assembly and introducing current into the copper pipe coil, and performing heat treatment on the welding position.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of a flexible heating device for local postweld heat treatment of a membrane water wall of a boiler according to the present invention;
FIG. 2 is a side view of a base plate of an embodiment of a flexible heating apparatus for localized post-weld heat treatment of a boiler membrane water wall in accordance with the present invention;
FIG. 3 is a schematic structural diagram of a second embodiment of a flexible heating device for local postweld heat treatment of a membrane water wall of a boiler according to the present invention;
FIG. 4 is a top view of a heating pipe in the flexible heating device for the local postweld heat treatment of the membrane water wall of the boiler according to the present invention;
FIG. 5 is a side view of the joint of the sliding plate and the fixed plate in the flexible heating device for the local postweld heat treatment of the membrane water wall of the boiler provided by the invention.
In the figure: the device comprises a base plate 1, a first telescopic rod 2, a second telescopic rod 3, an electron gun 4, a nitrogen tank 5, a three-way pipe 6, a gas outlet pipe 7, a refractor 8, a beam expander 9, a water wall component 10, a clamping plate 11, a third telescopic rod 12, a return spring 13, a 14U-shaped rod 15, a connecting rod 16, a first connecting rod 17, a second connecting rod 18, a connecting plate 19, a 20T-shaped block 21, a fixed rod 22, a copper pipe coil 23, a cooling pipe 24, a water pump 24, a socket 25, a sliding plate 26, a third connecting rod 27, a disc 28, a rotating rod 29, a fan 30, a heating pipe 31, a gathering frame 32, a T-shaped groove 33.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example one
Referring to fig. 1-2, a flexible heating device for local postweld heat treatment of a boiler membrane type water-cooled wall comprises a base plate 1 and a water-cooled wall assembly 10 positioned on one side of the base plate 1, a fixing plate 35 positioned on one side of the water-cooled wall assembly 10 is fixed on one side wall of the base plate 1, a connecting rod three 27 is fixed on one side of the fixing plate 35 close to the water-cooled wall assembly 10, a motor is fixed at the end part of the connecting rod three 27, a disk 28 is fixed at the driving end of the motor, a rotating rod 29 deviating from the circle center of the disk 28 is rotatably connected on one side wall of the disk 28, a T-shaped groove 33 is formed in one side of the fixing plate 35 close to the water-cooled wall assembly 10, a sliding plate 26 with a T-shaped end part is arranged in the T-shaped groove 33, the motor is started, the disk 28 is driven to rotate by the motor, the slide plate 26 is pulled to move left and right in the T-shaped groove 33.
One end of the rotating rod 29, which is far away from the disc 28, is rotatably connected with the middle part of the sliding plate 26, one side of the sliding plate 26, which is far away from the disc 28, is fixedly provided with a preheating mechanism, the preheating mechanism comprises a plurality of sections of continuous heating pipes 31, gaps are reserved between the heating pipes 31, the gaps are arranged to facilitate the guiding work of airflow, a gathering frame 32 is fixedly arranged in the heating pipe 31, a fan 30 is fixedly arranged in the middle part of one end of the gathering frame 32, which is far away from the heating pipes 31, the gathering frame 32 is arranged to centralize the airflow blown by the fan 30, the driving end of the fan 30 is arranged towards the heating pipe 31, the heating pipe 31 is connected with an external power supply to perform heating work, the airflow blown by the fan 30 is contacted with the heating pipe 31, the heating pipe 31 heats the airflow, the airflow is contacted with the water-cooled wall component 10 after, the realization is to the preheating of the horizontal a plurality of positions of water-cooled wall subassembly 10, and a plurality of gyro wheels 34 are installed to the one end that slide 26 is located T type groove 33, and the roll that sets up gyro wheel 34 is convenient for slide 26 to slide in T type groove 33, is equipped with heating mechanism on the base plate 1.
A connecting mechanism is arranged between the base plate 1 and the water-cooled wall component 10, the connecting mechanism comprises clamping plates 11 which are symmetrically and rotatably connected with the outer walls of the two base plates 1, a return spring 13 is fixed between the outer wall of each clamping plate 11 and the base plate 1, when the return spring 13 is completely unfolded, the two clamping plates 11 are far away from each other, two sockets 25 are arranged on the base plate 1, a U-shaped rod 14 is commonly inserted between the two sockets 25, the sockets 25 are arranged to facilitate the movement of the end part of the U-shaped rod 14, two ends of the U-shaped rod 14 are respectively contacted with the outer wall of one of the clamping plates 11, a telescopic rod three 12 is fixed on one side of the base plate 1 far away from the clamping plates 11, the driving end of the telescopic rod three 12 is fixedly connected with the inner wall of the U-shaped rod 14, the end part of the water-cooled wall component 10 is arranged between the two clamping plates 11, furthermore, the clamping plates 11, the contraction driven by the three telescopic rods 12 drives the U-shaped rod 14 to move inwards, the two ends of the U-shaped rod 14 are in contact with the outer wall of the clamping plate 11, the clamping plate 11 is extruded to rotate towards the inner side to be tightly abutted against the outer wall of the steel pipe, and the clamping of the water wall component 10 is completed.
The heating mechanism comprises a first telescopic rod 2 fixed on the outer wall of the substrate 1, a second telescopic rod 3 horizontally arranged is vertically and upwards fixed at the driving end of the first telescopic rod 2, an electron gun 4 is fixed at the driving end of the second telescopic rod 3, the electron gun 4 is also called an electron beam generator, the electron gun 4 mainly comprises a cathode, a beam-focusing electrode, an anode, an electromagnetic lens, a deflection coil and the like, the anode is grounded, the cathode is connected with a negative high position, the focusing beam is generally at the same potential as the cathode, and an accelerating electric field is formed between the cathode and the anode. Electrons emitted by a cathode are accelerated to a very high speed under the action of an accelerating electric field, so that electron beams are emitted to a heated object according to a certain direction, the output end of an electron gun 4 is arranged perpendicular to a water-cooled wall component 10, two symmetrically arranged air outlet pipes 7 are fixed on one side of the electron gun 4 close to the water-cooled wall component 10, a nitrogen tank 5 is fixed on one side of the electron gun 4 far away from the water-cooled wall component 10, the output end of the nitrogen tank 5 is connected with a tee joint 6, two ends of the tee joint 6 are respectively connected with the end parts of the two air outlet pipes 7, a beam expanding lens 9 and a refractor 8 are sequentially arranged between the electron gun 4 and the water-cooled wall component 10, two ends of the beam expanding lens 9 and the refractor 8 are fixed on the outer wall of the air outlet pipes 7, light beams emitted by the electron gun 4 are diffused by the beam expanding lens 9 to form a larger light beam area, and, current value Ie through control electron gun 4, can conveniently and change heating power rapidly, and then change the temperature of heating, carry out the heat treatment through shining of electron beam, the heat treatment dead angle has been avoided, when carrying out the heat treatment, open the valve of nitrogen gas jar 5, nitrogen gas is spout to the heat treatment position behind in 6 flow direction two outlet ducts 7 of tee bend, the position of having avoided carrying out the heat treatment takes place the oxidation, guarantee the stability of heat treatment, simultaneously, carry out reciprocating of heating mechanism through telescopic link one 2, carry out horizontal migration through telescopic link two 3, the realization can be to the heat treatment work of any position of water-cooling wall subassembly 10.
Example two
Referring to fig. 3, the flexible heating device for the local postweld heat treatment of the membrane type water-cooled wall of the boiler comprises a base plate 1 and a water-cooled wall assembly 10 positioned on one side of the base plate 1, wherein a heating mechanism is arranged on the base plate 1.
The heating mechanism comprises a copper pipe coil 22 sleeved on the outer side of the water wall component 10, alternating current is introduced into the copper pipe coil 22, the water wall component 10 is positioned between the copper pipe coils 22, after the alternating current is introduced into the copper pipe coil 22, a strong magnetic beam with the polarity changed instantly is generated inside, a heated object such as metal is placed in the coil, the magnetic beam penetrates through the whole heated object, corresponding large eddy current is generated in the direction opposite to the heating current inside the heated object, and due to the fact that resistance exists in the heated object, a large amount of joule heat can be generated, the temperature of the object is rapidly increased, and then the temperature of the water wall component 10 is increased to carry out heat treatment on the welded position.
A connecting rod 15 is fixed on one side of the base plate 1 far away from the water-cooled wall component 10, a motor 16 is fixed on the end portion of the connecting rod 15, a first connecting rod 17 is fixed on the driving end of the motor 16, a second connecting rod 18 is connected to the end portion of the first connecting rod 17 in a rotating manner, a connecting plate 19 is fixed on the end portion of the base plate 1, a T-shaped groove is formed in the outer wall of the connecting plate 19, a T-shaped block 20 is arranged in the T-shaped groove in a sliding manner, one end, far away from the first connecting rod 17, of the second connecting rod 18 is connected with the T-shaped block 20 in a rotating manner, a fixing rod 21 is fixed between the T-shaped block 20 and the water-cooled wall component 10, one end of the first connecting rod 17 is driven to do circular motion through the rotation of the driving end of the motor 16, the other end of the first connecting rod 17 drives, avoiding dead angles of heat treatment.
Be equipped with cooling body on copper pipe coil 22's the outer wall, cooling body includes the water pump 24 of being connected with outside water source, water pump 24's output is fixed with multistage and continuous cooling tube 23, cooling tube 23 is fixed on copper pipe coil 22's outer wall, go into to cooling tube 23 with outside water source pump through water pump 24, dispel the heat to copper pipe coil 22 through the flow of water source in cooling tube 23, the temperature transmission of the work piece of avoiding heating leads to the fact its temperature to rise to copper pipe coil 22, influence its normal work.
Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.
According to the invention, the water-cooled wall assembly 10 is comprehensively heated by irradiating the light beam emitted by the electron gun 4 on the water-cooled wall assembly 10 and moving the electron gun 4, and the heat treatment work without dead angles is carried out on the welding position; by moving the copper pipe coil 22 outside the water wall assembly 10 and passing current through the copper pipe coil 22, eddy current is formed in the water wall assembly 10 to generate heat in internal resistance, and heat treatment is performed on the welding position.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Although the terms of the base plate 1, the first expansion link 2, the second expansion link 3, the electron gun 4, the nitrogen tank 5, the tee joint 6, the air outlet pipe 7, the refractor 8, the beam expander 9, the water wall assembly 10, the clamping plate 11, the third expansion link 12, the return spring 13, the U-shaped rod 14, the connecting rod 15, the motor 16, the first connecting rod 17, the second connecting rod 18, the connecting plate 19, the T-shaped block 20, the fixing rod 21, the copper pipe coil 22, the cooling pipe 23, the water pump 24, the socket 25 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (6)
1. The utility model provides a flexible heating device of local postweld thermal treatment of boiler membrane type water-cooled wall, includes base plate (1) and water-cooled wall subassembly (10) that is located base plate (1) one side, its characterized in that, be fixed with on one side lateral wall of base plate (1) and be located water-cooled wall subassembly (10) one side fixed plate (35) of one side, one side that fixed plate (35) are close to water-cooled wall subassembly (10) is fixed with connecting rod three (27), the end fixing of three connecting rod (27) has the motor, the drive end of motor is fixed with disc (28), it has bull stick (29) of deviating from disc (28) centre of a circle to rotate on one side lateral wall of disc (28), T type groove (33) has been seted up to one side that fixed plate (35) are close to water-cooled wall subassembly (10), it has slide (26) that the tip is the T type to set up to slide in T type groove (33), the one end that carousel (29) kept away from, one side that disc (28) were kept away from in slide (26) is fixed with preheating mechanism, preheating mechanism includes multistage and continuous heating pipe (31), leave the clearance between heating pipe (31), heating pipe (31) internal fixation has gathering frame (32), the one end middle part that heating pipe (31) were kept away from in gathering frame (32) is fixed with fan (30), the drive end of fan (30) sets up towards heating pipe (31), slide (26) are located the one end in T type groove (33) and install a plurality of gyro wheels (34), be equipped with heating mechanism on base plate (1).
2. The flexible heating device for the local postweld heat treatment of the membrane type water-cooled wall of the boiler according to claim 1, characterized in that a connecting mechanism is arranged between the base plate (1) and the water-cooled wall assembly (10), the heating mechanism comprises a first telescopic rod (2) fixed on the outer wall of the base plate (1), a second telescopic rod (3) horizontally arranged is vertically and upwardly fixed at the driving end of the first telescopic rod (2), an electron gun (4) is fixed at the driving end of the second telescopic rod (3), the output end of the electron gun (4) is arranged perpendicular to the water-cooled wall assembly (10), two symmetrically arranged air outlet pipes (7) are fixed at one side of the electron gun (4) close to the water-cooled wall assembly (10), a nitrogen tank (5) is fixed at one side of the electron gun (4) far away from the water-cooled wall assembly (10), and a tee joint (6) is connected at the output end of the nitrogen, the two ends of the tee joint (6) are respectively connected with the end parts of the two air outlet pipes (7), a beam expanding lens (9) and a refractor (8) are sequentially arranged between the electron gun (4) and the water-cooled wall component (10), and the two ends of the beam expanding lens (9) and the refractor (8) are fixed on the outer wall of the air outlet pipes (7).
3. The flexible heating device for the local postweld heat treatment of the membrane type water cooled wall of the boiler according to claim 2, wherein the connecting mechanism comprises clamping plates (11) which are symmetrically and rotatably connected with the outer walls of two base plates (1), two sockets (25) are formed in the base plates (1), a U-shaped rod (14) is commonly inserted between the two sockets (25), two ends of the U-shaped rod (14) are respectively contacted with the outer wall of one of the clamping plates (11), a telescopic rod III (12) is fixed on one side, away from the clamping plate (11), of the base plate (1), and the driving end of the telescopic rod III (12) is fixedly connected with the inner wall of the U-shaped rod (14).
4. A flexible heating device for the local post weld heat treatment of boiler membrane water walls according to claim 3 characterized in that a return spring (13) is fixed between the outer wall of each clamping plate (11) and the base plate (1).
5. The flexible heating device for the local postweld heat treatment of the membrane type water cooled wall of the boiler according to claim 1, wherein the heating mechanism comprises a copper pipe coil (22) sleeved outside the water cooled wall assembly (10), a connecting rod (15) is fixed on one side of the base plate (1) far away from the water cooled wall assembly (10), a motor (16) is fixed at the end part of the connecting rod (15), a first connecting rod (17) is fixed at the driving end of the motor (16), a second connecting rod (18) is rotatably connected at the end part of the first connecting rod (17), a connecting plate (19) is fixed at the end part of the base plate (1), a T-shaped groove is formed in the outer wall of the connecting plate (19), a T-shaped block (20) is arranged in the T-shaped groove in a sliding manner, one end of the second connecting rod (18) far away from the first connecting rod (17) is rotatably connected with the T-shaped block (20), and a fixing rod (21) is fixed between the, and a cooling mechanism is arranged on the outer wall of the copper pipe coil (22).
6. The flexible heating device for the local postweld heat treatment of the membrane water wall of the boiler according to the claim 5, characterized in that the cooling mechanism comprises a water pump (24) connected with an external water source, the output end of the water pump (24) is fixed with a multi-section and continuous cooling pipe (23), and the cooling pipe (23) is fixed on the outer wall of the copper pipe coil (22).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113909063A (en) * | 2021-09-22 | 2022-01-11 | 上饶市桐宇光电科技有限公司 | Coating device for optical lens processing |
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| CN106636601A (en) * | 2016-11-14 | 2017-05-10 | 上海锅炉厂有限公司 | Thermal treatment device for T91/T92 boiler water cooling wall tube row field assembly weld joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113909063A (en) * | 2021-09-22 | 2022-01-11 | 上饶市桐宇光电科技有限公司 | Coating device for optical lens processing |
| CN113909063B (en) * | 2021-09-22 | 2022-09-02 | 上饶市桐宇光电科技有限公司 | Coating device for optical lens processing |
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