CN102581538A

CN102581538A - Clamping welding and tempering device for horizontal flanges of variable stator blade cartridge receivers of gas turbines

Info

Publication number: CN102581538A
Application number: CN2012100705713A
Authority: CN
Inventors: 张大旺; 太秀滨; 张俊成; 车利民; 于志锋; 赵新成; 王海波; 李大俭
Original assignee: Harbin Turbine Co Ltd
Current assignee: Harbin Turbine Co Ltd; Hadian Power Equipment National Engineering Research Center Co Ltd
Priority date: 2012-03-16
Filing date: 2012-03-16
Publication date: 2012-07-18
Anticipated expiration: 2032-03-16
Also published as: CN102581538B

Abstract

A clamping welding and tempering device for horizontal flanges of variable stator blade cartridge receivers of gas turbines relates to a fixture for welding and tempering horizontal flanges of variable stator blade cartridge receivers of gas turbines and solves the problem that a clamping welding and tempering device for flanges of variable stator blade cartridge receivers of gas turbines is not available in current markets. Two lower U-shaped grooves are machined on the outer side wall of a bottom plate, an upper spigot is arranged on the bottom plate, vertical plates are fixedly connected with the bottom plate, lower fixing blocks are fixedly mounted in lower fixing grooves of the bottom plate, two rib plates and two reinforcing ribs are fixedly connected with the bottom plate and the vertical plates, two upper U-shaped grooves are machined on the outer side wall of an upper cover, a lower spigot is arranged on the lower surface of the upper cover, an upper fixing block is fixedly mounted in each of fixing grooves of the upper cover, an upper gland is mounted on a base main body, the upper spigot corresponds to the lower spigot, two coaxial positioning pin holes are machined on each of the upper gland and the vertical plates, and two fixing press cakes are detachably connected with a horizontal flange by two bolts. The clamping welding and tempering device can be used for clamping, welding and tempering the horizontal flanges of variable stator blade cartridge receivers of the gas turbines.

Description

Weldering of gas turbine variable stator blade casing horizontal flange clamping and back-fire arrangement

Technical field

The present invention relates to the anchor clamps that a kind of gas turbine variable stator blade casing horizontal flange welding and tempering are used.

Background technology

Because gas turbine and combined-cycle technology thereof are advanced, the thermal efficiency is high, unit starting is fast, automaticity is high, peaking performance is good, can satisfy the environmental protection requirement of increasingly stringent, the development gas turbine is imperative.Because the precision of the welding requirements of gas turbine variable stator blade casing flange is very high, so corresponding equipment also will satisfy process requirements.For satisfying the welding precision of gas turbine variable stator blade casing flange; Horizontal flange will adopt electron-beam welder to weld during gas turbine blower part variable stator blade casing component processing; Also has tempering process afterwards, when adorning weldering, because casing is the semi-ring state; And postwelding requires not disassembly equipment tempering together, so equipment is had higher requirement.And up to now, still do not weld and back-fire arrangement with gas turbine variable stator blade casing flange clamping.

Summary of the invention

The purpose of this invention is to provide a kind of gas turbine variable stator blade casing horizontal flange clamping weldering and back-fire arrangement,, still be not used in the problem of weldering of gas turbine variable stator blade casing flange clamping and back-fire arrangement to solve up to now.The present invention adopts the semicircle location and welds common tempering with the workpiece dress.The positioning accuracy that this clamping weldering and back-fire arrangement provide has reached the specification requirement of variable stator blade casing dress weldering.

For addressing the above problem the technical scheme of taking be:

Gas turbine variable stator blade casing horizontal flange clamping weldering of the present invention and back-fire arrangement, said clamping weldering and back-fire arrangement comprise base body, upper press cover and two fixing briquettings of using:

Said base body comprises base plate, riser, two reinforcements, two gussets and a plurality of fixed block down, and base plate is made up of following rectangular slab and lower semi-circular plate, and a long side surface of following rectangular slab and the vertical surface of lower semi-circular plate are affixed; The justify align of the two ends of following rectangular slab and lower semi-circular plate, be positioned on the lateral wall of base plate down rectangular slab and lower semi-circular plate connection along the lower semi-circular plate radially be processed with two following U type grooves, two following U type grooves are symmetrical set with respect to the center of lower semi-circular plate; Be positioned at semi-circle edge edge place on the lower semi-circular plate upper surface and be provided with seam, riser places on the upper surface of base plate and is positioned at the junction of rectangular slab and lower semi-circular plate down, and riser and base plate are affixed; Riser is processed with a plurality of fixed grooves down along the length direction setting of base plate on the lateral wall of lower semi-circular plate, each is fixed with a following fixed block in the fixed groove down; The upper ends of a plurality of down fixed blocks are higher than the upper surface of lower semi-circular plate, two gussets side by side and vertical the setting, the upper surface and the riser of two gussets and lower semi-circular plate are affixed; Two reinforcements are set up in parallel on following rectangular slab, and two reinforcements are affixed with following rectangular slab and riser, and riser respectively is processed with the first square inner concave with the two ends of the adjacent side of following U type groove; The face parallel with gusset is the first locating surface B in the first square inner concave, and the lower end of the face vertical with gusset is processed with first groove in the first square inner concave, and the face vertical with gusset is the second locating surface A in the first square inner concave; The two ends of following rectangular slab and the adjacent side of following U type groove respectively are processed with the second square inner concave, and the face parallel with gusset is the 3rd locating surface C in the second square inner concave, and the upper surface of the following rectangular slab zone that contacts with the riser lower surface is processed with second groove; The groove bottom of first groove is the 4th locating surface D, and two gussets are concordant with the upper surface of riser, and upper press cover comprises loam cake and a plurality of fixed block of going up; Loam cake is made up of last rectangular slab and first circular slab, and a long side surface of last rectangular slab and the vertical surface of first circular slab are affixed, the two ends of last rectangular slab and the justify align of first circular slab; Be positioned at rectangular slab and first circular slab connection on the lateral wall of loam cake along radially being processed with two and going up U type grooves of first circular slab, go up U type groove for two and be symmetrical set, be positioned at semi-circle edge edge place on first circular slab lower surface and be provided with down seam with respect to the center of first circular slab; Be processed with a plurality of fixed grooves of going up on the lateral wall of first circular slab; Be fixed with one on each in the fixed groove and go up fixed block, a plurality of lower ends of going up fixed block exceed the lower surface of first circular slab, and upper press cover is installed on the base body; And the following seam of upper press cover and the corresponding setting of the last seam of base body; Be processed with two coaxial dowel holes on upper press cover and the riser, last U type groove is provided with following U type groove is corresponding one by one, fixes being symmetrical set with the center line of briquetting with respect to the lower semi-circular plate for two; Each fixing right angled triangle that is shaped as with briquetting; The fixing place, interior right angle with briquetting of right angled triangle is provided with boss, and the right angled triangle fixedly fixing thickness of slab direction with briquetting of boss upper edge right angled triangle of briquetting is processed with internal thread hole, and right angled triangle is fixing to lean on riser with briquetting; Fix being threaded with internal thread hole through two bolts for two, fix removably connecting through said two bolts and horizontal flange for two with briquetting with briquetting.

The invention has the beneficial effects as follows: the lower half circle seam positions in the employing, and the casing outer periphery adopts right angled triangle to fix and holds out against with briquetting, and device adopts with material to guarantee the tempering deformation requirements with workpiece.In addition, that the present invention also has is simple to operate, efficient is high, accurate positioning, satisfy product welding and tempering requirement, can reuse the characteristics of suitable popularization.

Description of drawings

Fig. 1 is the overall structure front view of gas turbine variable stator blade casing horizontal flange clamping weldering of the present invention and back-fire arrangement, and Fig. 2 is the vertical view of Fig. 1, and Fig. 3 is the front view of base body; Fig. 4 is the vertical view of Fig. 3, and Fig. 5 is the E-E cutaway view of Fig. 4, and Fig. 6 is that the F of Fig. 5 is to view; Fig. 7 is the front view of upper press cover, and Fig. 8 is the vertical view of Fig. 7, and Fig. 9 is the G-G cutaway view of Fig. 8; Figure 10 is fixing front view with briquetting, and Figure 11 is the vertical view of Figure 10.

The specific embodiment

The specific embodiment one: combine Fig. 1-Figure 11 explanation, the weldering of gas turbine variable stator blade casing horizontal flange clamping and the back-fire arrangement of this embodiment, said clamping weldering and back-fire arrangement comprise that base body 1, upper press cover 2 and two are fixing with briquetting 3:

Said base body 1 comprises base plate 4, riser 5, two reinforcements 6, two gussets 7 and a plurality of fixed blocks 8 down, and base plate 4 is made up of with lower semi-circular plate 10 rectangular slab 9 down, and a long side surface of following rectangular slab 9 and the vertical surface of lower semi-circular plate 10 are affixed; The justify align of the two ends of following rectangular slab 9 and lower semi-circular plate 10, being positioned at down on the lateral wall of base plate 4, rectangular slab 9 is symmetrical set with 11, two following U type grooves of two following U type grooves, 11 centers with respect to lower semi-circular plate 10 that radially are processed with of lower semi-circular plate 10 connections along lower semi-circular plate 10; Be positioned at semi-circle edge edge place on lower semi-circular plate 10 upper surfaces and be provided with seam 12, riser 5 places on the upper surface of base plate 4 and is positioned at the junction of rectangular slab 9 and lower semi-circular plate 10 down, and riser 5 is affixed with base plate 4; Riser 5 is processed with a plurality of fixed grooves 13 down along the length direction setting of base plate 4 on the lateral wall of lower semi-circular plate 10, each is fixed with a following fixed block 8 in the fixed groove 13 down; A plurality of upper ends of fixed block 8 down are higher than the upper surface of lower semi-circular plate 10, and two gussets 7 are provided with side by side and vertically, and two gussets 7 are affixed with the upper surface and the riser 5 of lower semi-circular plate 10; Two reinforcements 6 are set up in parallel on following rectangular slab 9, and two reinforcements 6 are affixed with riser 5 with following rectangular slab 9, and riser 5 respectively is processed with the first square inner concave with the two ends of following U type groove 11 adjacent sides; Be the first locating surface B with gusset 7 parallel faces in the first square inner concave, the lower end of the face vertical with gusset 7 is processed with first groove 14 (purpose is for the ease of processing the 3rd locating surface C and the 4th locating surface D, to reach the purpose that does not hinder the horizontal flange location) in the first square inner concave; Be the second locating surface A with gusset 7 vertical faces in the first square inner concave, following rectangular slab 9 respectively is processed with the second square inner concave with the two ends of following U type groove 11 adjacent sides, is the 3rd locating surface C with gusset 7 parallel faces in the second square inner concave; The upper surface of following rectangular slab 9 groove bottom that the zone is processed with second groove, 15, the first grooves 14 that contacts with riser 5 lower surfaces is the 4th locating surface D, two gussets 7 concordant with the upper surface of riser 5 (after welding, processing); Upper press cover 2 comprises loam cake 16 and a plurality of fixed blocks 17 of going up, and loam cake 16 is made up of with first circular slab 19 last rectangular slab 18, and a long side surface of last rectangular slab 18 and the vertical surface of first circular slab 19 are affixed; The justify align of the two ends of last rectangular slab 18 and first circular slab 19 is positioned at rectangular slab 18 and is symmetrical set with 20, two last U type groove 20 centers with respect to first circular slab 19 of two last U type grooves that radially are processed with along first circular slab 19, first circular slab 19 connections on the lateral wall of loam cake 16; Be positioned at semi-circle edge edge place on first circular slab 19 lower surfaces and be provided with down seam 21, be processed with a plurality of fixed grooves 22 of going up on the lateral wall of first circular slab 19, be fixed with one on each in the fixed groove 22 and go up fixed block 17; A plurality of lower ends of going up fixed blocks 17 exceed the lower surface of first circular slab 19, and upper press cover 2 is installed on the base body 1, and the last seam 12 corresponding settings of the following seam 21 of upper press cover 2 and base body 1; Be processed with two coaxial dowel holes 23 (two dowel holes 23 will manufacture with upper press cover 2, the thermal deformation when supporting upper press cover 2 and reducing later stage workpiece tempering) on upper press cover 2 and the riser 5, last U type groove 20 and the correspondence setting (purpose is for the electron beam welding machine welding gun working space to be provided) one by one of following U type groove 11; Fix being symmetrical set for two with the center line of briquetting 3 with respect to lower semi-circular plate 10, each fixing right angled triangle that is shaped as with briquetting 3, the fixing place, interior right angle with briquetting of right angled triangle is provided with boss 24; The right angled triangle fixedly fixing thickness of slab direction with briquetting of boss 24 upper edge right angled triangles of briquetting is processed with internal thread hole 25, and right angled triangle is fixing to lean on riser 5 with briquetting, fixes being threaded with internal thread hole 25 through two bolts 26 with briquetting 3 for two; Two fixing removably connects with horizontal flange through said two bolts 26 with briquetting 3 that (fixing mainly acting on briquetting 3 is the fixing horizontal flange; Adopt bolt 26 anti-modes of drawing to be connected, hold out against horizontal flange in the side with bolt 26 when compressing, the complete positioning requirements of the flange that is up to the standard) with base body 1.

The specific embodiment two: combine Fig. 3-Fig. 5 and Fig. 8 explanation; The base body 1 and the upper press cover 2 of this embodiment are the soldering group component; Promptly descend a long side surface of rectangular slab 9 and the vertical surface of lower semi-circular plate 10 to adopt the mode of welding affixed; Riser 5 adopts the mode of welding affixed with base plate 4; Each upper surface and riser 5 that adopt in the fixed groove 13 down the mode of welding to be fixed with 8, two gussets of a following fixed block 7 and lower semi-circular plate 10 adopts the mode of welding affixed, and two reinforcements 6 adopt the mode of welding affixed with following rectangular slab 9 and riser 5; Upper press cover 2 is the soldering group component; The vertical surface of promptly going up a long side surface and first circular slab 19 of rectangular slab 18 adopts the mode of welding affixed, adopts the mode of welding to be fixed with a upward fixed block 17 (postwelding accurately process and guarantee seam size) each in the fixed groove 22.Other composition and annexation are identical with the specific embodiment one.

Add should accurately guarantee man-hour upper and lower seam size in order to the location workpiece, the spacing of the spacing of two first locating surface B and two the 3rd locating surface C is in order to the position level flange.

The method that manufactures of dowel hole 23: when manufacturing dowel hole, at first be installed to upper press cover on the base body, play dial gauge at upper and lower stop portion afterwards, measure axiality, when reaching requirement, tighten to connect up and down and use bolt, manufacture dowel hole afterwards.

Device method for using: earlier horizontal flange is fixed on the base body during use, afterwards casing is placed on the relevant position, at this moment cover upper press cover, insert alignment pin.According to upper and lower seam the casing position is regulated afterwards; And with bolt and fixing hold out against casing with briquetting; Be completely fixed horizontal flange, connecting bolt fuses workpiece and this equipment about tightening then, winches to the electron beam welding machine worktable and welds; Winch to the tempering workshop and carry out tempering, disassembling apparatus gets final product afterwards.

Claims

1. gas turbine variable stator blade casing horizontal flange clamping weldering and back-fire arrangement is characterized in that: said clamping weldering and back-fire arrangement comprise that base body (1), upper press cover (2) and two are fixing with briquetting (3):

Said base body (1) comprises base plate (4), riser (5), two reinforcements (6), two gussets (7) and a plurality of fixed block (8) down, and base plate (4) is made up of following rectangular slab (9) and lower semi-circular plate (10), and the vertical surface of a long side surface of following rectangular slab (9) and lower semi-circular plate (10) is affixed; The justify align of the two ends of following rectangular slab (9) and lower semi-circular plate (10), be positioned on the lateral wall of base plate (4) down rectangular slab (9) and lower semi-circular plate (10) connection along lower semi-circular plate (10) radially be processed with two following U type grooves (11), two following U type grooves (11) are symmetrical set with respect to the center of lower semi-circular plate (10); Be positioned at semi-circle edge edge place on lower semi-circular plate (10) upper surface and be provided with seam (12), riser (5) places on the upper surface of base plate (4) and is positioned at the junction of rectangular slab (9) and lower semi-circular plate (10) down, and riser (5) and base plate (4) are affixed; Riser (5) is processed with a plurality of fixed grooves (13) down along the length direction setting of base plate (4) on the lateral wall of lower semi-circular plate (10), each is fixed with a following fixed block (8) in the fixed groove (13) down; A plurality of upper ends of fixed block (8) down are higher than the upper surface of lower semi-circular plate (10), and two gussets (7) are provided with side by side and vertically, and two gussets (7) are affixed with the upper surface and the riser (5) of lower semi-circular plate (10); Two reinforcements (6) are set up in parallel on following rectangular slab (9), and two reinforcements (6) are affixed with following rectangular slab (9) and riser (5), and riser (5) respectively is processed with the first square inner concave with the two ends of the adjacent side of following U type groove (11); The face parallel with gusset (7) is the first locating surface B in the first square inner concave, and the lower end of the face vertical with gusset (7) is processed with first groove (14) in the first square inner concave, and the face vertical with gusset (7) is the second locating surface A in the first square inner concave; The two ends of following rectangular slab (9) and the adjacent side of following U type groove (11) respectively are processed with the second square inner concave, and the face parallel with gusset (7) is the 3rd locating surface C in the second square inner concave, and the upper surface of following rectangular slab (9) zone that contacts with riser (5) lower surface is processed with second groove (15); The groove bottom of first groove (14) is the 4th locating surface D, and two gussets (7) are concordant with the upper surface of riser (5), and upper press cover (2) comprises loam cake (16) and a plurality of fixed block (17) of going up; Loam cake (16) is made up of last rectangular slab (18) and first circular slab (19), and the vertical surface of a long side surface of last rectangular slab (18) and first circular slab (19) is affixed, the justify align of the two ends of last rectangular slab (18) and first circular slab (19); Be positioned at rectangular slab (18) and first circular slab (19) connection on the lateral wall of loam cake (16) along radially being processed with two and going up U type grooves (20) of first circular slab (19), go up U type groove (20) for two and be symmetrical set, be positioned at semi-circle edge edge place on first circular slab (19) lower surface and be provided with down seam (21) with respect to the center of first circular slab (19); Be processed with a plurality of fixed grooves (22) of going up on the lateral wall of first circular slab (19); Be fixed with one in the fixed groove on each (22) and go up fixed block (17), a plurality of lower ends of going up fixed block (17) exceed the lower surface of first circular slab (19), and upper press cover (2) is installed on the base body (1); And the corresponding setting of last seam (12) of the following seam (21) of upper press cover (2) and base body (1); Be processed with two coaxial dowel holes (23) on upper press cover (2) and the riser (5), last U type groove (20) and following U type groove (11) are corresponding one by one to be provided with, and two fixing being symmetrical set with the center line of briquetting (3) with respect to lower semi-circular plate (10); Each fixing right angled triangle that is shaped as with briquetting (3); The fixing place, interior right angle with briquetting of right angled triangle is provided with boss (24), and the right angled triangle fixedly fixing thickness of slab direction with briquetting of the boss of briquetting (24) upper edge right angled triangle is processed with internal thread hole (25), and right angled triangle is fixing to lean on riser (5) with briquetting; Fix being threaded with internal thread hole (25) through two bolts (26) for two, fix with briquetting (3) removably connecting for two through said two bolts (26) and horizontal flange with briquetting (3).

2. according to weldering of the said gas turbine variable stator blade of claim 1 casing horizontal flange clamping and back-fire arrangement; It is characterized in that: base body (1) and upper press cover (2) are the soldering group component; Promptly descend a long side surface of rectangular slab (9) and the vertical surface of lower semi-circular plate (10) to adopt the mode of welding affixed; Riser (5) adopts the mode of welding affixed with base plate (4); Each adopts the mode of welding to be fixed with a following fixed block (8) in the fixed groove (13) down, and two gussets (7) adopt the mode of welding affixed with the upper surface and the riser (5) of lower semi-circular plate (10), and two reinforcements (6) adopt the mode of welding affixed with following rectangular slab (9) and riser (5); Upper press cover (2) is the soldering group component, promptly goes up a long side surface of rectangular slab (18) and the vertical surface of first circular slab (19) and adopts the mode of welding affixed, adopts the mode of welding to be fixed with one in the fixed groove on each (22) and goes up fixed block (17).