CN202291902U - Tube plate surfacing preheating and after-heating device for moisture separator reheater (MSR) - Google Patents
Tube plate surfacing preheating and after-heating device for moisture separator reheater (MSR) Download PDFInfo
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- CN202291902U CN202291902U CN2011203969589U CN201120396958U CN202291902U CN 202291902 U CN202291902 U CN 202291902U CN 2011203969589 U CN2011203969589 U CN 2011203969589U CN 201120396958 U CN201120396958 U CN 201120396958U CN 202291902 U CN202291902 U CN 202291902U
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Abstract
The utility model discloses a tube plate surfacing preheating and after-heating device for a moisture separator reheater (MSR). The device comprises a power supply center, and electric heating blocks which are arranged on a top surface, a bottom surface, a front side face and a rear side face of a tube plate and are used for surfacing, wherein the electric heating blocks are connected to the power supply center. By the device, heating surfacing is performed through the electric heating blocks, welding rods are heated and melted by the electric heating blocks and are uniformly distributed on the surface of parent metal so as to form a surfacing layer; and therefore, the heating is uniform, and surfacing deformation can be reduced or prevented. The device serving as a simple and practical surfacing device is widely applied to the nuclear power industry.
Description
Technical field
The utility model relates to nuclear power field device, particularly a kind of separator tube sheet built-up welding prognosis thermic devices.
Background technology
Separator (MSR) is the combined type very large vessels of most critical in the nuclear power station secondary circuit " four devices one are cold ".In pressurized-water reactor nuclear power plant, the steam that evaporimeter produces is saturated vapor, and after the acting of entering steam turbine high-pressure cylinder, if do not take measures, the exhaust steam moisture of low pressure (LP) cylinder final stage will reach about 24%, and this will have a strong impact on the safe operation of steam turbine.In order to guarantee the operate as normal of nuclear power station; Between nuclear power generating sets high pressure cylinder and low pressure (LP) cylinder, all be provided with separator (MSR); So not only can reduce the corrosion of the large tracts of land of low-pressure cylinder blade, but also the steam that can increase low-pressure cylinder is exerted oneself and is improved constantly generating efficiency.Separator is one of visual plant in the nuclear power conventional island, and its heat exchange structure classification belongs to tubing heat exchanger.
And tube sheet is the critical component of separator, and its built-up welding effect directly has influence on the work of separator, and monolithic tube sheet appearance and size is about 3700mm * 850mm * 360mm; Two tube sheets size that gathers into folds back-to-back is about the cuboid of 3700mm * 850mm * 720mm; For the ease of describing, existing long two the big planes up and down with wide composition of cuboid are called end face and bottom surface, will grow and high two sides forming are called leading flank and trailing flank, two end faces of wide and high composition are called left side and right side, big plane and front and back sides combination part up and down is called long corner; End face, bottom surface and four long corners need built-up welding; Weld deposit process needs preheating and after heat, and preheating is to the whole or local a kind of technology that heats of workpiece, after after heat is meant that welding job stops before built-up welding begins; Immediately weldment is heated to certain temperature; The insulation certain hour slowly cools off weldment, and the main purpose of preheating after heat eliminates stress.
When the tube sheet built-up welding, need frequently upset, and traditional built-up welding mode adopts flame heat to carry out prognosis heat realization built-up welding, but the naked light heating wastes energy relatively, the built-up welding easy deformation, and the technique for overlaying that the built-up welding workman also need be certain, working environment is also very poor.
The utility model content
In view of the above problems, the utility model technical issues that need to address are: solve because energy waste and the yielding problem of built-up welding that traditional flame heat built-up welding causes.
In order to solve the technical scheme that above-mentioned technical problem the utility model adopted be:
A kind of separator tube sheet built-up welding prognosis thermic devices comprises a supply of electric power center and is arranged on tube sheet end face, bottom surface, leading flank and trailing flank and is used for the electrical heating piece of built-up welding that described electrical heating piece all is connected to said supply of electric power center.
Further, this build-up welding apparatus also comprises roller devices, and said roller devices drives tube sheet through the cylinder that is located at the tube sheet right ends and rotates.
Further, to lean against backing run by two internal tube plates through interim reinforcement plate be one to described tube sheet.
Further, being arranged on the end face of said tube sheet and the electrical heating piece of bottom surface is 9 every, and the electrical heating piece of leading flank and trailing flank is 6 every.
Further, this device also comprises a control centre, also is provided with on the said electrical heating piece and is connected to the thermocouple that control centre is used to monitor the built-up welding temperature.
Further; The periphery of said tube sheet also is fixed with dismountable frock plate, and described frock plate comprises last wainscot sheathing, the front and back wallboard that covers leading flank and trailing flank, the left and right sides end plate that covers left side and right side that covers end face and bottom surface, the right angle warming plate that covers four long corners.
Further, described left and right sides end plate is divided into two little end plates, and is fixed on the left and right sides end face of tube sheet through clamping device.
Further, the said two ends periphery that goes up wainscot sheathing, front and back wallboard and right angle warming plate is provided with fixedly angle steel.
Further, said going up on wainscot sheathing and the front and back wallboard is equipped with some reinforcements that are connected the right angle warming plate that are used for fixing.
Further, also be welded with the lifting double-screw bolt on the wallboard of said front and back, be welded with the connection steel plate on the said lifting double-screw bolt, be connected with U-bolt on the said connection steel plate, going back cross-under on the said U bolt has hanger.
The beneficial effect of the utility model is: because the utility model employing is that the electrical heating piece heats built-up welding, welding rod is evenly distributed on the mother metal surface and forms overlay cladding by electrical heating piece heat fused; Homogeneous heating like this, and can realize that different parts replaces built-up welding, can reduce or prevent the built-up welding distortion; In addition; Adopt the cleaner environmental protection of Electric heating, reduce the influence of high temperature, improve workman's working environment the workman.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further, the frock part is the sub-assembly of built-up welding prognosis thermic devices and tube sheet.
Fig. 1 is a tube sheet built-up welding prognosis thermal technology piece installing front view;
Fig. 2 is a tube sheet built-up welding prognosis thermal technology piece installing vertical view;
Fig. 3 is a tube sheet built-up welding prognosis thermal technology piece installing right view;
Fig. 4 is the A-A face cutaway view of Fig. 1.
The specific embodiment
Referring to figs. 1 through Fig. 4; Separator tube sheet built-up welding prognosis thermic devices; Comprise a supply of electric power center and be arranged on end face 11, bottom surface 12, leading flank 13 and the trailing flank 14 of tube sheet and be used for the electrical heating piece 2 of built-up welding that described electrical heating piece 2 all is connected to said supply of electric power center.Being arranged on the end face 11 of said tube sheet and the electrical heating piece of bottom surface 12 is 9 every, and the electrical heating piece of leading flank 13 and trailing flank 14 is 6 every.This build-up welding apparatus also comprises roller devices 3, and said roller devices 4 drives tube sheet through the cylinder 41 that is located at the tube sheet right ends and rotates.The supply of electric power center is that electrical heating piece 2 provides power supply; Be arranged on end face 11 and 18 electrical heating pieces arranged with bottom surface 12; Be arranged on leading flank 13 and 12 electrical heating pieces arranged with trailing flank 14; The peak power of every electrical heating piece is 10KW, when the specified heating power of design, is less than maximum service rating 300KW, and rated power is set to P=10*10+16*10=260KW here.Welding rod is placed on the electrical heating piece, and when reaching uniform temperature, welding rod melts on the surface that is evenly distributed on tube sheet and forms overlay cladding; Preferably; In weld deposit process, tube sheet drives to rotate through tourelle 4 realizes that different parts replaces built-up welding, and the type variable after the tube sheet built-up welding is littler.Described tourelle is provided with two rollers, and cylinder 41 is stuck between the roller, and roller rotates to drive the cylinder rotation and then drive tube sheet and rotates.In addition; In order further accurately to control weld deposit process; This device also comprises a control centre; On electrical heating piece 2, also be provided with the thermocouple 21 that is used to monitor heating-up temperature, each thermocouple 21 uploads to control centre with the temperature that monitors, and control centre further adjusts the temperature of electrical heating piece 2 according to preset heating-up temperature.
Special, this device is applicable to that leaning against backing run by two internal tube plates through interim reinforcement plate is that the tube sheet that one is formed carries out built-up welding.
As preferred embodiment; The periphery of said tube sheet also is fixed with dismountable frock plate, and described frock plate comprises last wainscot sheathing (cornice sheathing 31, wainscot sheathing 32), the front and back wallboard (front wallboard 33, rear wall plate 34) that covers leading flank 13 and trailing flank 14, the left and right sides end plate (first member plate 35, right end plate 36) that covers left side and right side that covers end face 11 and bottom surface 12, the right angle warming plate 37 that covers four long corners.When built-up welding end face 11 and bottom surface 12, can take away going up wainscot sheathing, realize built-up welding through the electrical heating piece heating that is located at end face 11 and bottom surface 12; During the long corner of four of built-up welding, after can detachable right angle warming plate being removed, realize built-up welding through the electrical heating piece heating that is located at end face 11, bottom surface 12, leading flank 13 and trailing flank 14; And front and back sides and the left and right sides not built-up welding of end face.Described left and right sides end face respectively is divided into two little end plates, and is fixed on the left and right sides end face of tube sheet through clamping device.
For further fixing tool plate and tube sheet, the said two ends periphery that goes up wainscot sheathing, front and back wallboard and right angle warming plate is provided with fixedly angle steel 52, is equipped with some reinforcements 53 that are connected the right angle warming plate that are used for fixing on said last wainscot sheathing and the front and back wallboard.
Before built-up welding, be installed in build-up welding apparatus on the tube sheet after, need the frock part be hung on the tourelle; So,, on the wallboard of said front and back, also be welded with lifting double-screw bolt 54 as preferably; Be welded with on the said lifting double-screw bolt 54 and connect steel plate 55; Be connected with U-bolt 56 on the said connection steel plate, on the said U bolt also cross-under hanger is arranged, during lifting hook hung on the hanger and gets final product.
More than be that preferable enforcement to the utility model specifies; But the utility model is not limited to said embodiment; Those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (10)
1. separator tube sheet built-up welding prognosis thermic devices; It is characterized in that: comprise a supply of electric power center and be arranged on tube sheet end face, bottom surface, leading flank and trailing flank and be used for the electrical heating piece of built-up welding that described electrical heating piece all is connected to said supply of electric power center.
2. a kind of separator tube sheet built-up welding prognosis thermic devices according to claim 1, it is characterized in that: this build-up welding apparatus also comprises roller devices, said roller devices drives tube sheet through the cylinder that is located at the tube sheet right ends and rotates.
3. a kind of separator tube sheet built-up welding prognosis thermic devices according to claim 1, it is characterized in that: it is one that described tube sheet leans against backing run by two internal tube plates through interim reinforcement plate.
4. a kind of separator tube sheet built-up welding prognosis thermic devices according to claim 1 is characterized in that: being arranged on the end face of said tube sheet and the electrical heating piece of bottom surface is 9 every, and the electrical heating piece of leading flank and trailing flank is 6 every.
5. according to claim 1 or 4 described a kind of separator tube sheet built-up welding prognosis thermic devices, it is characterized in that: this device also comprises a control centre, also is provided with on the said electrical heating piece and is connected to the thermocouple that control centre is used to monitor the built-up welding temperature.
6. according to claim 1 or 3 or 4 described a kind of separator tube sheet built-up welding prognosis thermic devices; It is characterized in that: the periphery of said tube sheet also is fixed with dismountable frock plate, and described frock plate comprises last wainscot sheathing, the front and back wallboard that covers leading flank and trailing flank, the left and right sides end plate that covers left side and right side that covers end face and bottom surface, the right angle warming plate that covers four long corners.
7. a kind of separator tube sheet built-up welding prognosis thermic devices according to claim 6, it is characterized in that: described left and right sides end plate is divided into two little end plates, and is fixed on the left and right sides end face of tube sheet through clamping device.
8. a kind of separator tube sheet built-up welding prognosis thermic devices according to claim 6 is characterized in that: the said two ends periphery that goes up wainscot sheathing, front and back wallboard and right angle warming plate is provided with fixedly angle steel.
9. a kind of separator tube sheet built-up welding prognosis thermic devices according to claim 6 is characterized in that: said going up on wainscot sheathing and the front and back wallboard is equipped with some reinforcements that are connected the right angle warming plate that are used for fixing.
10. a kind of separator tube sheet built-up welding prognosis thermic devices according to claim 6; It is characterized in that: also be welded with the lifting double-screw bolt on the wallboard of said front and back; Be welded with the connection steel plate on the said lifting double-screw bolt; Be connected with U-bolt on the said connection steel plate, going back cross-under on the said U bolt has hanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203969589U CN202291902U (en) | 2011-10-18 | 2011-10-18 | Tube plate surfacing preheating and after-heating device for moisture separator reheater (MSR) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203969589U CN202291902U (en) | 2011-10-18 | 2011-10-18 | Tube plate surfacing preheating and after-heating device for moisture separator reheater (MSR) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202291902U true CN202291902U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203969589U Expired - Lifetime CN202291902U (en) | 2011-10-18 | 2011-10-18 | Tube plate surfacing preheating and after-heating device for moisture separator reheater (MSR) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202291902U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109551082A (en) * | 2018-12-29 | 2019-04-02 | 东方电气集团东方锅炉股份有限公司 | A kind of overlaying method of large diameter thin wall double tubesheet |
| CN115780960A (en) * | 2023-02-09 | 2023-03-14 | 二重(镇江)重型装备有限责任公司 | Large-scale rotating workpiece surfacing preheating device |
-
2011
- 2011-10-18 CN CN2011203969589U patent/CN202291902U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109551082A (en) * | 2018-12-29 | 2019-04-02 | 东方电气集团东方锅炉股份有限公司 | A kind of overlaying method of large diameter thin wall double tubesheet |
| CN115780960A (en) * | 2023-02-09 | 2023-03-14 | 二重(镇江)重型装备有限责任公司 | Large-scale rotating workpiece surfacing preheating device |
| CN115780960B (en) * | 2023-02-09 | 2023-04-07 | 二重(镇江)重型装备有限责任公司 | Large-scale rotating workpiece surfacing preheating device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |