CN1096863A - The combustion chamber of steam generator and manufacture method thereof - Google Patents
The combustion chamber of steam generator and manufacture method thereof Download PDFInfo
- Publication number
- CN1096863A CN1096863A CN94104279A CN94104279A CN1096863A CN 1096863 A CN1096863 A CN 1096863A CN 94104279 A CN94104279 A CN 94104279A CN 94104279 A CN94104279 A CN 94104279A CN 1096863 A CN1096863 A CN 1096863A
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- CN
- China
- Prior art keywords
- supporting strap
- laths
- metal
- pipeline
- combustion chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/62—Component parts or details of steam boilers specially adapted for steam boilers of forced-flow type
- F22B37/64—Mounting of, or supporting arrangements for, tube units
- F22B37/645—Mounting of, or supporting arrangements for, tube units involving upper vertically-disposed water tubes and lower horizontally- or helically disposed water tubes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
There is vertical wall the steam generator combustion chamber, and it is by being parallel to each other, with respect to the horizontal plane constituting to the pipeline (2) of updip slightly.Pipeline (2) is welded together airtightly by dividing plate (7).On the width of wall, be distributed with a plurality of vertical, the supporting strap (3) that links to each other with pipeline (2).Each supporting strap (3) has a plurality of slotted holes along its distribution of lengths (4) therebetween, and the Connection Element of laths of metal (weldering base) (5) sample that cuts into comb shape is housed in slotted hole.Pipeline that each laths of metal is adjacent (2) and dividing plate (7) and supporting strap (3) are welded together.
Description
The present invention relates to the combustion chamber of steam generator (boiler), its vertical wall have be parallel to each other, with respect to the horizontal plane slightly to the pipeline of updip, these pipelines are welded together airtightly by dividing plate or fin.Simultaneously, on wall is wide, distributing a plurality of vertical, be contained in the supporting strap on the pipeline, these supporting straps are welded together by Connection Element and tube wall.In addition, the invention still further relates to the manufacture method of this steam generator combustion chamber.
The supporting strap in flattened rectangular cross section and the Connection Element of curved surface shaped are arranged on this known combustion chamber.Connection between each supporting strap and the tube wall is performed such, be positioned at toward each other two curved surface shaped Connection Elements with root pipe height exceed the longitudinal edge of supporting strap and be soldered to the supporting strap outer surface on equitant that section, another section of curved surface shaped Connection Element is welded on the pipe.On the length of supporting strap, repeat this fixing means by calculating good distance.This fixed form proves good on the less relatively steam generator of steam power, and wherein the width of supporting strap is about 100 millimeters.The structure of the combustion chamber on more powerful steam generator is correspondingly bigger, and the cross section of each supporting strap also needs to strengthen, and that is to say that at first, the width of each supporting strap will strengthen.Yet issuable problem is because steam generator causes on the one hand when starting and stopping between supporting strap and on the other hand the supporting strap width big differential expansion appears.This differential expansion may very big stress occur and cause fracture at tie point.Thereby be very limited on the thermograde of when steam generator is lighted a fire and stopped working, selecting to allow.
The objective of the invention is to improve the combustion chamber of the sort of steam generator noted earlier, make the thermograde of allowing with device simple in structure greater than the thermograde that can select at present.
The objective of the invention is to solve like this; Each supporting strap is furnished with a plurality of slotted holes in the intermediate section of its length, and a laths of metal Connection Element that cuts into comb shape is housed in each hole, and the pipeline that is adjacent and dividing plate or fin is welded together.
Can make each supporting strap become on-fixed to link to each other with adjacent tube wall therebetween by this way, thereby it can vertically expand sidewards in the clear under the influence of heat supply with respect to it.Guarantee that simultaneously supporting strap is attached on the pipeline, so that pipeline can not interrupted the heat transmission of supporting strap.Adopt this mode when steam generator (steam boiler) is lighted a fire and be flame-out, expansion difference between supporting strap and tube wall is relatively smaller, this just means, the thermograde of these runnings is also higher than the thermograde that can reach so far, and can not occur unallowed stress in the junction.
A kind of method for optimizing of making the combustion chamber is characterised in that: the supporting strap in belt length hole is placed on by pipeline and dividing plate or by the outside of extended surface tube tube wall welded together, in each slotted hole, inject a laths of metal that has the pectination otch, connect by tack weld and tube wall, then supporting strap is taken away, and laths of metal welded on tube wall, be put into supporting strap on the tube wall for the second time then, and make laths of metal pass slotted hole, make supporting strap push down tube wall at last, finish the welding between laths of metal and the supporting strap.Supporting strap plays the locating template effect of the laths of metal on the tube wall in the intermediate link of this method.
Below with reference to accompanying drawing one embodiment of the present of invention are described in detail, wherein:
Fig. 1 a: part of having represented steam generator (steam boiler) combustion chamber with perspective and concise and to the point mode.
Fig. 2: be the front view of one section supporting strap, the back of supporting strap has one section tube wall.
Fig. 3: be among Fig. 2 corresponding line segment III to the cross section of III and
Fig. 4: be among Fig. 2 corresponding line IV to the cross section of IV.
What Fig. 1 showed is a combustion chamber 1 of a forced circulation steam generator that is not described in detail (generator), and it is rectangle or square burner hearth on plane round one.Combustion chamber 1 has with respect to the horizontal plane slightly to updip and the spirality pipeline 2 round burner hearth.Pipeline 2 forms the evaporating surface of steam boiler (generator).Find out from Fig. 2 and Fig. 3, gusset 7 and hermetic welded together with pipeline is installed between the pipeline 2, thereby form tube wall, tube wall has sealed burner hearth air tightly.1 lower end (not shown) has a funnel (opening) in the combustion chamber, equally also is made of pipeline, and these pipelines directly or carry out the transition to by middle collector pipe in the pipeline of combustion chamber then.According to Fig. 1, as the antetheca of combustion chamber 1 upper end being illustrated, pipeline 2 carry out the transition to there the pipeline 2 of two or more capwises ' in.In transition region or a distribution plate that is welded in the tube wall is arranged, on perhaps pipeline 2 and pipeline section 2 ' by middle collector pipe are connected to each other.Vertical pipeline section 2 ' always extend to the upper end of combustion chamber from transition region, there, they all are connected on the collector pipe.Pipeline section 2 ' between also hermetic be welded with and dividing plate 7 corresponding dividing plates.
A plurality of supporting straps 3 are equipped with in 1 the outside in the combustion chamber, and they vertically extend and are evenly distributed on the width of combustion chamber.Supporting strap is wide at least 200 millimeters.They are pressed the mode of stating of chatting face to face and are connected with the pipeline 2 of the combustion chamber of spiral extension, and in the top with the known mode of not describing be fixed on vertically extending pipeline section 2 ' on so that they the load of combustion chamber 1 and opening be delivered to equably pipeline section 2 ' on.
On each supporting strap 3 slot 4 is arranged as shown in Figure 2, these holes are positioned at the centre of supporting strap and along distributing on its whole length, and these holes 4 are by punching or mill out.Be extended with laths of metal 5 in slotted hole 4, they are sheared into the comb shape otch at the edge towards pipeline 2, and make the border of otch cooperate the outer peripheral face of corresponding adjacent channel, and otch is placed against pipeline.Laths of metal 5 is on remaining one section dividing plate 7 that is bearing in chamber wall between otch.By weld seam 8(Fig. 3 and 4), laths of metal 5 is welded together with dividing plate 7 and pipeline 2.Supporting strap 3 pipeline 2 of ining succession equally, and be on the whole width of band and its outside and laths of metal 5 burn-on (weld seam 9 in Fig. 3 and Fig. 4).In order not hinder supporting strap 3 to lean against on the pipeline 2, weld seam 8 along breach only near supporting strap.Slotted hole 4 is longer than the length of laths of metal 5 dimensionally slightly, so that make assembling easier.
The manufacture method of described combustion chamber is as follows: at first the dividing plate 7 of pipeline 2 and pipeline enclosure is made the tube wall section on automatic welding machine, then, make tube wall from the tube wall section by required size again.Afterwards, put the supporting strap 3 that has slotted hole 4, then, in each slotted hole 4, insert laths of metal 5, and adopt tack weld to be soldered on the tube wall, for example pass a little longer slotted hole at the two ends of laths of metal prewelding in Manufactured tube wall exterior.Next step is done the supporting strap that template uses and takes off from tube wall, by weld seam 8 laths of metal fixedly is soldered on the tube wall then.Then supporting strap 3 is put on the tube wall again, and laths of metal 5 passes slotted hole 4.Supporting strap is pressed on the pipeline 2, then, uses along the weld seam 9 of slotted hole 4 laths of metal 5 is fixed on the supporting strap.
Different with the above embodiments, the size of slotted hole 4 and laths of metal 5 also can be longer slightly, so that laths of metal is connected across on three to four pipelines adjacent one another are.
In addition, also can adopt the supporting strap replacement cross section of U type is the supporting strap of rectangle, and the dividing plate of U-shaped is leaned against on the tube wall.The tube wall that replaces pipeline-dividing plate-pipe connecting structure, the extended surface tube of tube wall also airtight (air tight) welding constitutes.
Claims (5)
1, the steam generator combustion chamber, the vertical wall of this combustion chamber has parallel, with respect to the horizontal plane slightly to the pipeline of updip, these pipelines are welded together airtightly by dividing plate or fin, on whole wall width, be distributed with simultaneously a plurality of vertical, the supporting strap that links to each other with pipeline, these supporting straps are soldered on the tube wall by Connection Element, it is characterized in that, each supporting strap has a plurality of slotted holes that are distributed on the entire longitudinal length therebetween, be furnished with a laths of metal Connection Element that cuts into comb shape in slotted hole, this Connection Element is soldered on the pipeline and dividing plate or fin that is adjacent.
2, combustion chamber according to claim 1 is characterized in that, this supporting strap is inclined to one side flat rectangular cross section.
3, combustion chamber according to claim 1 and 2 is characterized in that, the outer surface of the relative supporting strap of laths of metal is outstanding a little.
4, according to the described combustion chamber of any claim in the claim 1 to 3, it is characterized in that the length of each slotted hole is longer than the length of described laths of metal.
5, a kind of method of making combustion chamber as claimed in claim 1, it is characterized in that, be placed on the supporting strap in belt length hole by pipeline and dividing plate or be soldered to by extended surface tube on the outer surface of the tube wall that forms together, in each slotted hole, insert a laths of metal that cuts into comb shape, by tack weld each laths of metal is linked with tube wall, take away supporting strap then, and make laths of metal be soldered on the tube wall securely, afterwards, for the second time supporting strap is put on the tube wall, and makes laths of metal pass slotted hole, last, supporting strap is pressed on the tube wall, in the welding of finishing on the tube wall between laths of metal and the supporting strap.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EPP93810292.8 | 1993-04-21 | ||
| EP93810292A EP0621447B1 (en) | 1993-04-21 | 1993-04-21 | Steam generator combustion chamber and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1096863A true CN1096863A (en) | 1994-12-28 |
| CN1076814C CN1076814C (en) | 2001-12-26 |
Family
ID=8214959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94104279A Expired - Fee Related CN1076814C (en) | 1993-04-21 | 1994-04-21 | Combination chamber of a steam generator and method of its manufacture |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0621447B1 (en) |
| KR (1) | KR100310641B1 (en) |
| CN (1) | CN1076814C (en) |
| DE (1) | DE59308581D1 (en) |
| DK (1) | DK0621447T3 (en) |
| PL (1) | PL174280B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT404501B (en) * | 1997-03-14 | 1998-12-28 | Austrian Energy & Environment | Reinforcing structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH470629A (en) * | 1967-02-07 | 1969-03-31 | Sulzer Ag | Forced once-through steam generator |
| DE2621189C3 (en) * | 1976-05-13 | 1980-02-21 | Balcke-Duerr Ag, 4030 Ratingen | Device for suspending a pipe wall |
| CH634905A5 (en) * | 1978-12-20 | 1983-02-28 | Sulzer Ag | STEAM GENERATOR WALL. |
| DE2941623A1 (en) * | 1979-10-13 | 1981-04-23 | Deutsche Babcock Ag, 4200 Oberhausen | Steam-generator tube walls support - uses vertical tie bars with multiple connectors, spanning several tubes, more than one span apart |
| FR2474145A1 (en) * | 1980-01-18 | 1981-07-24 | Stein Industrie | Suspension bracket for industrial boiler water tubes - has tubes welded along steel strips suspended on vertical channels |
| JPS61211606A (en) * | 1985-01-04 | 1986-09-19 | ザ・バブコツク・アンド・ウイルコツクス・カンパニ− | Shroud pipe wall of furnace |
-
1993
- 1993-04-21 DK DK93810292T patent/DK0621447T3/en active
- 1993-04-21 EP EP93810292A patent/EP0621447B1/en not_active Expired - Lifetime
- 1993-04-21 DE DE59308581T patent/DE59308581D1/en not_active Expired - Fee Related
-
1994
- 1994-04-20 PL PL94303070A patent/PL174280B1/en unknown
- 1994-04-21 CN CN94104279A patent/CN1076814C/en not_active Expired - Fee Related
- 1994-04-21 KR KR1019940008468A patent/KR100310641B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100310641B1 (en) | 2001-12-28 |
| PL174280B1 (en) | 1998-07-31 |
| CN1076814C (en) | 2001-12-26 |
| DE59308581D1 (en) | 1998-06-25 |
| EP0621447B1 (en) | 1998-05-20 |
| DK0621447T3 (en) | 1999-03-15 |
| EP0621447A1 (en) | 1994-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Applicant after: Asea Brown Boveri AG Applicant before: Asea Brown Boveri AG |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: ABB MANAGENMENT CO., LTD. TO: YA RUIYA BOLANGBOWLIC CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ALSTOM COMPANY Free format text: FORMER OWNER: ABB SWITZERLAND HOLDINGS CO., LTD. Effective date: 20020726 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: ABB SWITZERLAND HOLDINGS CO., LTD. Free format text: FORMER NAME OR ADDRESS: YA RUIYA BOLANGBOWLIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Asea Brown Boveri AG Patentee before: Asea Brown Boveri AG |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20020726 Address after: Paris France Patentee after: Alstom Address before: Baden, Switzerland Patentee before: Asea Brown Boveri AG |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |