CN103080651A - Heat shield element - Google Patents
Heat shield element Download PDFInfo
- Publication number
- CN103080651A CN103080651A CN2011800415165A CN201180041516A CN103080651A CN 103080651 A CN103080651 A CN 103080651A CN 2011800415165 A CN2011800415165 A CN 2011800415165A CN 201180041516 A CN201180041516 A CN 201180041516A CN 103080651 A CN103080651 A CN 103080651A
- Authority
- CN
- China
- Prior art keywords
- heat shield
- shield element
- passage
- fastening bolt
- side wall
- 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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/007—Continuous combustion chambers using liquid or gaseous fuel constructed mainly of ceramic components
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Exhaust Silencers (AREA)
- Fuses (AREA)
- Connection Of Plates (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to a heat shield element having at least one side wall (16), wherein the side wall (16) comprises at least one depression (4) having a passage (30) that points in the direction of a supporting structure (17), wherein a fixing screw (18) can be introduced into the depression (4) and can be led through the passage (30) for fixing the heat shield element (14) perpendicularly to a screw fixing means (19) provided on the supporting structure (17), wherein the passage (30) in the side wall (16) comprises a securing means (41, 42) which is at least partly formed by the side wall (16), and wherein the securing means (41, 44) prevents the fixing screw (18) falling laterally out of the passage (30) during installation.
Description
Technical field
The present invention relates to the described heat shield element of a kind of preorder according to claim 1.
Background technology
In a lot of technology are used, all can use high-power ceramic heat shield element, in order to withstand the temperature between 1000 and 1600 degree.Especially such as the heat shield element of the turbine of gas turbine and turbine engine and so on, as in power plant and large aircraft applied those, have the corresponding larger surface that thermal shield apparatus shields that remains in inside, combustion chamber.Because thermal expansion and larger size, shielding must be assembled by a large amount of single heat shield elements of being made by pottery, and described heat shield element is spaced apart enough gaps each other.This gap provides enough spaces for the thermal expansion of heat shield element.But also because the gap, so that having produced directly with the supporting structure of supporting hot shielding element, the burning gases of heat contact, so be blown into cooling fluid through the cooling-air formula of cooling duct by described gap towards the combustion chamber direction, be used as a kind of effective countermeasure.Use in addition these cooling-airs, to the metallic support air-supply and with this it is cooled off targetedly, the heat shield element (CHS, Ceramic Heat Shields) of pottery is clamped on the supporting structure by means of described metallic support.
For framework construction being got simple as far as possible and integral type, known a kind of version, in this version, this support can be pushed with rabbeting in the annular and parallel mounting groove of design in supporting structure on the one hand, and on the other hand by means of designed retained part, it is clamped in the locating slot of design in ceramic heat shield element incline.By means of described support heat shield element is pushed in the groove of supporting structure in succession, the element that the element that wherein pushes afterwards will be positioned before is locked on its position.Can for example with the heat shield element in the gas-turbine combustion chamber, be configured to the formation of annular in this way.
Remaining heat shield element then can not be installed in this way at last because the existing adjacent heat shield element in both sides locked along the installation action of tangent line orientation.Usually this last heat shield element is called model or sample (Attrape).Therefore, use and by means of bolted scheme last heat shield element to be installed, described scheme is so that can install heat shield element along the direction of the plane normal of supporting structure.
A kind of known bolt tightening scheme is used four bolts for this reason, and described four bolts embed on the heat shield element sidewall as in its dead slot that designs.The shortcoming of this scheme is, installs and has brought operational issue.Operate four bolts, force and for example adopt some and insecure fixation, such as bonding or adhesive tape, so may lose thus bolt and owing to exist high turbine is destroyed dangerously must before starting, unconditionally find the screw of losing.In addition, must install above bolt head, this is very difficult, because bolt can therefore adhesive tape is fixing may also can not import in the hole of regulation in run-off the straight owing to adopting.Owing to relating to last heat shield element, so bolt can not be located with hand, and must rely on interior hex tool, in invisible situation, be inserted in the hole.Especially difficulty is fastening bolt will be inserted in the corresponding screw of supporting structure.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of heat shield element that can be installed in easily on the supporting structure, especially key brick or model.
This technical problem is solved by a kind of heat shield element with at least one sidewall, and wherein said sidewall comprises that at least one has the depression towards the passage of supporting structure direction.In described depression, the fastening bolt of can packing into, described fastening bolt passes passage heat shield element is vertically fixed on the bolt connecting device that is arranged in the supporting structure.According to the present invention, the passage in the sidewall is a kind of safety device that is made of sidewall at least partly.Described safety device so that fastening bolt be difficult to when mounted or can never from heat shield element, come off out.Therefore, do not have additional installation, just ceramic heat shield element, especially ceramic model can be installed quick, easy and reliably such as adhesive tape and mounting strap.Shortened significantly thus the installation time limit of this heat shield element.Safety device has stoped fastening bolt laterally to come off out when mounted from passage.
Preferably making described safety device is a kind of side wall sections of the wedge shape that is made of the inclined pockets on the passage.The depression of this inclination can be processed simultaneously during fabrication together, thereby need not increase manufacturing process at this.
Can differently make with it described safety device is a kind of side wall sections of tab shaped.The side wall sections of this tab shaped directly can be placed in by the passage, and can directly when making whole heat shield element, process together equally, for example cast out together.The side wall sections of tab shaped preferably has the opening of side direction, fastening bolt can be installed in the described opening and the side wall sections that is parallel to described tab shaped moves towards the depression direction with passage.So, can very easily fastening bolt be directed on its installation site.
Description of drawings
Other feature, characteristic and advantage of the present invention is by drawing in the following embodiment description to reference accompanying drawing 1 to 4.
Fig. 1 represent by a kind of have according to the heat shield element device of the heat shield element of prior art cut the partial lateral cutaway view that illustrates open,
Fig. 2 represents the first according to the top view of heat shield element of the present invention,
Fig. 3 represents to cut the partial lateral cutaway view that illustrates open according to heat shield element of the present invention and fastening bolt by the first,
Fig. 4 represents that the second is according to the top view of heat shield element of the present invention.
The specific embodiment
On known thermal shield apparatus, single heat shield element 13 or so-called fragment of brick are fixed on the supporting structure 17 by means of four bolts altogether.Especially the key brick of thermal shield apparatus or model.In the sidewall 16 of heat shield element 13, be configured with depression 4 or pit.Each depression 4 has the passage towards supporting structure 17 directions in addition, in the prior art described channels configuration is become a kind of dead slot 1 of side direction.Fastening bolt 18 is placed to depression 4 and the dead slot 1 from side direction.Below the bolt head of fastening bolt 18, settled fixing fastening bolt 18 to prevent packing ring or the angle piece 2 of its rotation.
Therefore can fastening bolt 18 be installed to the dead slot 1 and depression 4 of side direction from side direction by means of packing ring or angle piece 2.At the head of fastening bolt 18, be provided with profiled slot for the tool tip of the screwing tool that holds corresponding moulding.This profiled slot is connected a kind of in connecting of known interior hexagonal connector with tool tip, but also can has other shape, such as cross or flat recess.
The profiled slot of fastening bolt 18 heads in axial direction above, from heating surface 21 1 sides of heat shield element 13, respectively pierce one extend through the space that formed by groove 4 always enter hole 5.The diameter that this enters hole 5 is significantly less than the diameter of fastening bolt 18 heads 2, and sets like this size, that is, so that it is just much of that screwing tool can be passed through.When heat shield element moves, thereby only have the burning gases of the heat of limited quantity to enter the head that groove 4 arrives metal washer 2 and fastening bolt 18 by the hole 5 that enters that reaches dimensionally minimum degree.In addition, enter for latch recess 4 prevents hot gas, wash away groove 4 with cooling fluid, can described cooling fluid be blown into the combustion chamber from supporting structure 17 by space d.For enough spaces being provided for single heat shield element 8,13 thermal expansion, described space d is set.
Each fastening bolt 18 is tightened in the bolt connecting device in the supporting structure 17, in the present embodiment described bolt connecting device is implemented as respectively disk spring group 19.Adopt a kind of (unshowned) nut that disk spring group 19 is compressed.But the disk spring group 19 of pre-pressing is responsible for elastic deflection fixing of heat shield elements 13, for for example to since the movement that condition heat and heat induces compensate, this elastic deflection fixedly be indispensable.
When installing routinely, four fastening bolts 18 and packing ring 2 must be installed to the groove 4 and dead slot 1 of each side direction from side direction, and be fixed to prevent from coming off out during installation by adhesive tape.
Fig. 2 represents that the first is according to the top view of heat shield element 14 of the present invention.Described heat shield element 14 comprises the groove 4 that has towards the passage 30 of supporting structure 17 directions, so that by means of fastening bolt 18(Fig. 3) heat shield element 14 is vertically fixed on supporting structure 17(Fig. 1) on, wherein with described fastening bolt 18(Fig. 3) be tightened in be designed in supporting structure 17(Fig. 1) in bolt connecting device 19(Fig. 1) in.Other at passage 30, now offer the groove 31 of inclination at sidewall 16, can be with fastening bolt 18(Fig. 3) be contained in the described groove 31 in from the outside.
Fig. 3 represents fastening bolt 18 is installed in this heat shield element 14.Fastening bolt 18 is installed in from the outside in the groove 31 of inclination.Then, overturn 40 fastening bolts 18 and it is directed on its final installation site with this.By means of upset 40, the head slippage of fastening bolt 18 is in groove 4, and the body of rod slippage of fastening bolt 18 is in passage 30.Other at passage 30 thus, formed a kind of side wall sections 44 that is used as the wedge shape of safety device by groove 31.The side wall sections 44 of this wedge shape so that fastening bolt 18 be difficult to when mounted from heat shield element 14, laterally come off out.Simplified significantly thus installation, thus from now on can reject the supplementary means of adhesive tape and mounting strap and so on for example.For this reason, heat shield element 14 is from now in groove 4 zones, than having dead slot 1(Fig. 1 in the prior art) heat shield element 13, have more ceramic material at sidewall 16.Therefore improved according to the stability of heat shield element 14 of the present invention in groove 4 zones, and stoped the cracked of heat shield element corner angle.Therefore groove 31 can be processed when making heat shield element 14 simultaneously together, thereby need not increase costly manufacturing process at this.
Fig. 4 represents that the second is according to the top view of heat shield element 14 of the present invention.Wherein, safety device is a kind of side wall sections 41 of tab shaped.This side wall sections 41 is placed in passage 30 other.The side wall sections 41 of tab shaped is so that fastening bolt 18(Fig. 1) be difficult to when mounted from heat shield element 14, laterally come off out.The side wall sections 41 of tab shaped has the opening 42 of side direction.With fastening bolt 18(Fig. 1) be installed in this opening 42.Then, make fastening bolt 18(Fig. 1) side wall sections 41 that is parallel to tab shaped moves towards groove 4 directions with passage 30, and substantially slippage in groove 4 and passage 30.At this, the side wall sections 41 of tab shaped has in opening 42 directions and thickens, and this has just stoped fastening bolt 18(Fig. 1) come off out along opening 42 directions.At this, heat shield element 14 is from now in groove 4 zones, also than having dead slot 1(Fig. 1 in the prior art) heat shield element 13, have more ceramic material at sidewall 16.Therefore improved according to the stability of heat shield element 14 of the present invention in groove 4 zones, and stoped the cracked of heat shield element corner angle.
Claims (4)
1. heat shield element (14) with at least one sidewall (16), wherein said sidewall (16) comprises that at least one has the depression (4) towards the passage (30) of supporting structure (17) direction, the fastening bolt (18) of in described depression (4), can packing into simultaneously, described fastening bolt (18) can pass passage (30) and heat shield element (14) is vertically fixed on the bolt connecting device (19) that is arranged in the described supporting structure (17), it is characterized in that, described passage (30) has the safety device (41 that is made of sidewall (16) at least partly in described sidewall (16), 44), and wherein said safety device (41,44) has stoped fastening bolt (18) laterally to come off out when mounted from described passage (30).
2. according to heat shield element claimed in claim 1 (14), it is characterized in that, described safety device is the side wall sections (44) by the wedge shape of groove (31) formation of the inclination on the described passage (30).
3. according to heat shield element claimed in claim 1 (14), it is characterized in that, described safety device is the side wall sections (41) of tab shaped.
4. according to heat shield element claimed in claim 3 (14), it is characterized in that, the side wall sections of described tab shaped (41) has the opening (42) of side direction, and described fastening bolt (18) can be installed in the described opening (42) and the side wall sections (41) that is parallel to described tab shaped moves towards the direction with depression (4) of described passage (30).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10174291A EP2423596A1 (en) | 2010-08-27 | 2010-08-27 | Heat shield element |
| EP10174291.4 | 2010-08-27 | ||
| PCT/EP2011/058153 WO2012025265A2 (en) | 2010-08-27 | 2011-05-19 | Heat shield element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103080651A true CN103080651A (en) | 2013-05-01 |
| CN103080651B CN103080651B (en) | 2016-03-02 |
Family
ID=43500163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180041516.5A Expired - Fee Related CN103080651B (en) | 2010-08-27 | 2011-05-19 | heat shield element |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP2423596A1 (en) |
| CN (1) | CN103080651B (en) |
| RU (1) | RU2561957C2 (en) |
| WO (1) | WO2012025265A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659136A (en) * | 2020-12-22 | 2022-06-24 | 通用电气公司 | Combustor for a gas turbine engine |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012204162A1 (en) * | 2012-03-16 | 2013-09-19 | Siemens Aktiengesellschaft | Ring combustor bypass |
| DE102012022199A1 (en) * | 2012-11-13 | 2014-05-28 | Rolls-Royce Deutschland Ltd & Co Kg | Combustor shingle of a gas turbine |
| DE102013223258A1 (en) | 2013-11-14 | 2015-06-03 | Rolls-Royce Deutschland Ltd & Co Kg | Combustion heat shield element of a gas turbine |
| DE102014221225A1 (en) * | 2014-10-20 | 2016-04-21 | Siemens Aktiengesellschaft | Heat shield element and method for its production |
| DE102019204746A1 (en) | 2019-04-03 | 2020-10-08 | Siemens Aktiengesellschaft | Heat shield tile with damping function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020050237A1 (en) * | 1998-03-19 | 2002-05-02 | Bernard Becker | Wall segment for a combustion area, and a combustion area |
| CN1395667A (en) * | 2000-01-28 | 2003-02-05 | 西门子公司 | Thermal shield for component carrying hot gases, especially for structural components of gas turbines |
| CN1409046A (en) * | 2001-06-27 | 2003-04-09 | 西门子公司 | Heat shielding device for fuel gas guide piece, particularly gas turbine structure piece |
| CN1748110A (en) * | 2004-01-27 | 2006-03-15 | 西门子公司 | Thermal shield |
| CN1818527A (en) * | 2005-02-07 | 2006-08-16 | 西门子公司 | Heat shield |
| EP1884713A1 (en) * | 2006-07-25 | 2008-02-06 | Siemens Aktiengesellschaft | Heat shield arrangement, particularly for a gas turbine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1392995A1 (en) * | 1986-04-19 | 1994-04-15 | Казахский научно-исследовательский институт энергетики | Body of combustion chamber of mhd power plant |
| EP1467151A1 (en) * | 2003-04-10 | 2004-10-13 | Siemens Aktiengesellschaft | Heat shield element |
| EP2230454A1 (en) * | 2009-03-18 | 2010-09-22 | Siemens Aktiengesellschaft | Device for mounting a heat shield element |
| EP2270395B1 (en) * | 2009-06-09 | 2015-01-14 | Siemens Aktiengesellschaft | Heat shield element assembly and method for installing same |
-
2010
- 2010-08-27 EP EP10174291A patent/EP2423596A1/en not_active Withdrawn
-
2011
- 2011-05-19 RU RU2013113457/06A patent/RU2561957C2/en not_active IP Right Cessation
- 2011-05-19 CN CN201180041516.5A patent/CN103080651B/en not_active Expired - Fee Related
- 2011-05-19 WO PCT/EP2011/058153 patent/WO2012025265A2/en active Application Filing
- 2011-05-19 EP EP11721510.3A patent/EP2596290B1/en not_active Not-in-force
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020050237A1 (en) * | 1998-03-19 | 2002-05-02 | Bernard Becker | Wall segment for a combustion area, and a combustion area |
| CN1395667A (en) * | 2000-01-28 | 2003-02-05 | 西门子公司 | Thermal shield for component carrying hot gases, especially for structural components of gas turbines |
| CN1409046A (en) * | 2001-06-27 | 2003-04-09 | 西门子公司 | Heat shielding device for fuel gas guide piece, particularly gas turbine structure piece |
| CN1748110A (en) * | 2004-01-27 | 2006-03-15 | 西门子公司 | Thermal shield |
| CN1818527A (en) * | 2005-02-07 | 2006-08-16 | 西门子公司 | Heat shield |
| EP1884713A1 (en) * | 2006-07-25 | 2008-02-06 | Siemens Aktiengesellschaft | Heat shield arrangement, particularly for a gas turbine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659136A (en) * | 2020-12-22 | 2022-06-24 | 通用电气公司 | Combustor for a gas turbine engine |
| CN114659136B (en) * | 2020-12-22 | 2023-09-08 | 通用电气公司 | Combustor for a gas turbine engine |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2561957C2 (en) | 2015-09-10 |
| WO2012025265A3 (en) | 2013-01-03 |
| CN103080651B (en) | 2016-03-02 |
| EP2596290B1 (en) | 2015-08-05 |
| EP2423596A1 (en) | 2012-02-29 |
| WO2012025265A2 (en) | 2012-03-01 |
| EP2596290A2 (en) | 2013-05-29 |
| RU2013113457A (en) | 2014-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20200519 |
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| CF01 | Termination of patent right due to non-payment of annual fee |