CN103080651B - heat shield element - Google Patents
heat shield element Download PDFInfo
- Publication number
- CN103080651B CN103080651B CN201180041516.5A CN201180041516A CN103080651B CN 103080651 B CN103080651 B CN 103080651B CN 201180041516 A CN201180041516 A CN 201180041516A CN 103080651 B CN103080651 B CN 103080651B
- Authority
- CN
- China
- Prior art keywords
- heat shield
- shield element
- fastening bolt
- passage
- depression
- 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.)
- Expired - Fee Related
Links
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)
- Connection Of Plates (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Fuses (AREA)
Abstract
The present invention relates to the heat shield element that one has at least one sidewall (16), wherein said sidewall (16) comprises at least one and has towards the depression (4) of the passage (30) in supporting structure (17) direction, fastening bolt (18) can be loaded in described depression (4) simultaneously, heat shield element (14) can be vertically fixed on the bolt connecting device (19) that is arranged in described supporting structure (17) through described passage (30) by described fastening bolt (18), wherein said passage (30) has the safety device (41 be made up of described sidewall (16) at least partly in sidewall (16), 44), and wherein said safety device (41, 44) fastening bolt (18) is prevented laterally to come off out when mounted from passage (30).
Description
Technical field
The present invention relates to the heat shield element described in a kind of preorder according to claim 1.
Background technology
In a lot of technology application, all can use high-power ceramic heat and cover element, to withstand the temperature between 1000 and 1600 degree.Especially as the heat shield element of the turbine of gas turbine and turbine engine and so on, as in power plant and large aircraft apply those, at combustion chamber, there is the corresponding larger surface that thermal shield apparatus carries out shielding that needs.Due to thermal expansion and larger size, shielding must be assembled by the heat shield element be made up of pottery single in a large number, and described heat shield element is spaced apart enough gaps each other.This gap is that the thermal expansion of heat shield element provides enough spaces.But also because gap, the burning gases of heat are created with the supporting structure of supporting hot shielding element directly contact, so be blown into the cooling fluid of the cooling-air formula through cooling duct towards direction, combustion chamber by described gap, by a kind of effective countermeasure of conduct.Apply these cooling-airs in addition, blow to metallic support targetedly and cool it with this, the heat shield element (CHS, CeramicHeatShields) of pottery is clamped on supporting structure by means of described metallic support.
In order to framework construction be obtained as far as possible simply and integral type, known a kind of version, in this version, on the one hand this support interlocking can be pushed the annular of design in supporting structure and in parallel mounting groove, and on the other hand by means of designed retained part, be clamped in the locating slot designing and cover in element incline at ceramic heat.In succession pushed in the groove of supporting structure by heat shield element by means of described support, the element wherein pushed afterwards will be locked on its position by the element of locating before.Such as by the heat shield element in gas-turbine combustion chamber, the queue of annular can be configured in this way.
Finally remaining heat shield element then can not be installed in this way, because the locked tangentially directed installation action of the existing adjacent heat shield element in both sides.Usually this last heat shield element is called model or sample (Attrape).Therefore, apply by means of bolted scheme to install last heat shield element, described scheme makes can along the direction of the plane normal of supporting structure to install heat shield element.
A kind of known bolt tightening scheme uses four bolts for this reason, and described four bolts embed on heat shield element sidewall as in itself and the dead slot that designs.The shortcoming of this scheme is, installs and brings operational issue.Operate four bolts, force and such as adopt some and insecure fixation, as bonding or adhesive tape, may bolt be lost thus and due to exist high turbine is destroyed dangerous so the screw of loss unconditionally must be found before starting.In addition, must install above bolt head, this is very difficult, because therefore bolt may also can not be able to import in the hole of regulation owing to adopting adhesive tape to fix in run-off the straight.Owing to relating to last heat shield element, so bolt can not be located with hand, and interior hex tool must be relied on, be inserted in hole in invisible situation.Especially difficulty, will be inserted into fastening bolt in the corresponding screw of supporting structure.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of heat shield element that can be arranged on easily on 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 at least one to be had towards the depression of the passage in supporting structure direction.In described depression, can load fastening bolt, heat shield element is vertically fixed on the bolt connecting device that is arranged in supporting structure through passage by described fastening bolt.According to the present invention, the passage in sidewall is a kind of safety device be made up of sidewall at least partly.Described safety device makes fastening bolt be difficult to when mounted or can never come off out from heat shield element.Therefore, there is no additional installation, as adhesive tape and mounting strap just can quick, easy and reliably installation ceramic heat cover element, especially ceramic model.Significantly reduce the installation time limit of this heat shield element thus.Safety device prevents fastening bolt laterally to come off out when mounted from passage.
Described safety device is preferably made to be a kind of side wall sections of the wedge shape be made up of the inclined pockets on passage.The depression of this inclination can be processed simultaneously during fabrication together, thus need not increase manufacturing process at this.
Described safety device can be differently made with it to be a kind of side wall sections of tab shaped.The side wall sections of this tab shaped directly can be placed in by passage, and can directly process together when manufacturing whole heat shield element equally, such as, cast out together.The side wall sections of tab shaped preferably has the opening of side direction, fastening bolt can be installed in described opening and the side wall sections being parallel to described tab shaped moves towards the depression direction with passage.So, can very easily fastening bolt be directed on its installation site.
Accompanying drawing explanation
Other feature, characteristic and advantage of the present invention, is drawn with reference in the embodiment description of accompanying drawing 1 to 4 by following.
Fig. 1 represents and cuts by a kind of heat shield element device with heat shield element conventionally the partial lateral sectional view illustrated open,
Fig. 2 represents the first top view according to heat shield element of the present invention,
Fig. 3 represents and cuts by the first the partial lateral sectional view illustrated open according to heat shield element of the present invention and fastening bolt,
Fig. 4 represents the top view of the second according to heat shield element of the present invention.
Detailed description of the invention
On known thermal shield apparatus, single heat shield element 13 or so-called fragment of brick are fixed on 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 towards the passage in supporting structure 17 direction 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 dead slot 1 from side direction.Below the bolt head of fastening bolt 18, the packing ring having settled fixing fastening bolt 18 to prevent it from rotating or angle piece 2.
The dead slot 1 that therefore by means of packing ring or angle piece 2, fastening bolt 18 can be installed to side direction from side direction and depression 4.At the head of fastening bolt 18, be provided with profiled slot for holding the tool tip of corresponding shaping screwing tool.This profiled slot and tool tip are preferably designed so that known interior hexagonal connector be connected in one, but also can have other shape, as cross or flat recess.
Fastening bolt 18 head profiled slot in axial direction above, from heating surface 21 1 side of heat shield element 13, respectively pierce the access aperture 5 that extends through the space formed by depression 4 always.The diameter of this access aperture 5, is significantly less than the diameter of fastening bolt 18 head 2, and sets size like this, that is, make to allow screwing tool by just much of that.When heat shield element runs, the burning gases of the heat of limited quantity are thus only had to enter by the access aperture 5 reaching minimum degree dimensionally the head that depression 4 arrives metal washer 2 and fastening bolt 18.In addition, preventing hot gas from entering to lock depression 4, washing away depression 4 with cooling fluid, by space d, described cooling fluid being blown into combustion chamber from supporting structure 17.In order to provide enough spaces to the thermal expansion of single heat shield element 8,13, described space d is set.
Each fastening bolt 18 is tightened in the bolt connecting device in supporting structure 17, in the present embodiment described bolt connecting device is implemented as disk spring group 19 respectively.A kind of (unshowned) nut is adopted to compress disk spring group 19.What the disk spring group 19 of pre-pressing was responsible for heat shield element 13 can elastic deflection fixing, in order to the movement such as induced the condition due to heat and hot sound compensates, this elastic deflection be fixedly indispensable.
When installing routinely, the depression 4 that four fastening bolts 18 and packing ring 2 must be installed to each side direction from side direction and dead slot 1, and fixed to prevent from coming off out during installation by adhesive tape.
Fig. 2 represents the first top view according to heat shield element 14 of the present invention.Described heat shield element 14 comprises the depression 4 had towards the passage 30 in supporting structure 17 direction, heat shield element 14 is vertically fixed on supporting structure 17 (Fig. 1) by means of fastening bolt 18 (Fig. 3), wherein described fastening bolt 18 (Fig. 3) is tightened in the bolt connecting device 19 (Fig. 1) be designed in supporting structure 17 (Fig. 1).Other at passage 30, on sidewall 16, offer now the groove 31 of inclination, fastening bolt 18 (Fig. 3) can be contained in from the outside in described groove 31.
Fig. 3 represents and is installed in this heat shield element 14 by fastening bolt 18.Fastening bolt 18 is arranged in the groove 31 of inclination from the outside.Then, overturn 40 fastening bolts 18 and be directed on its final installation site with this.By means of upset 40, the head slippage of fastening bolt 18 is in depression 4, and the body of rod slippage of fastening bolt 18 is in passage 30.Other at passage 30 thus, define a kind of side wall sections 44 being used as the wedge shape of safety device by groove 31.The side wall sections 44 of this wedge shape makes fastening bolt 18 be difficult to when mounted laterally come off out from heat shield element 14.Significantly simplify installation thus, thus from now on can the supplementary means of reject such as adhesive tape and mounting strap and so on.For this reason, heat shield element 14, from now in depression 4 region, than the heat shield element 13 in prior art with dead slot 1 (Fig. 1), sidewall 16 has more ceramic material.Therefore improve according to the stability of heat shield element 14 of the present invention in depression 4 region, and prevent the cracked of heat shield element corner angle.Therefore groove 31 can be processed when manufacturing heat shield element 14 simultaneously together, thus need not increase costly manufacturing process at this.
Fig. 4 represents the top view of the second according to 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 makes fastening bolt 18 (Fig. 1) be difficult to when mounted laterally come off out from heat shield element 14.The side wall sections 41 of tab shaped has the opening 42 of side direction.Fastening bolt 18 (Fig. 1) is installed in this opening 42.Then, the side wall sections 41 making fastening bolt 18 (Fig. 1) be parallel to tab shaped moves towards depression 4 direction with passage 30, and substantially slippage in depression 4 and passage 30.At this, the side wall sections 41 of tab shaped has in opening 42 direction and thickens, and this just prevents fastening bolt 18 (Fig. 1) to come off out along opening 42 direction.At this, heat shield element 14, from now in depression 4 region, also than the heat shield element 13 in prior art with dead slot 1 (Fig. 1), sidewall 16 has more ceramic material.Therefore improve according to the stability of heat shield element 14 of the present invention in depression 4 region, and prevent the cracked of heat shield element corner angle.
Claims (4)
1. one kind has the heat shield element (14) of at least one sidewall (16), wherein said sidewall (16) comprises at least one and has towards the depression (4) of the passage (30) in supporting structure (17) direction, fastening bolt (18) can be loaded in described depression (4) simultaneously, described fastening bolt (18) can pass passage (30) and is vertically fixed on by heat shield element (14) and be arranged on described supporting structure (17), wherein, described fastening bolt is tightened on the bolt connecting device (19) that is arranged in supporting structure, it is characterized in that, described passage (30) has the safety device (41 be made up of sidewall (16) at least partly in described sidewall (16), 44), and wherein said safety device (41, 44) fastening bolt (18) is prevented laterally to come off out when mounted from described passage (30).
2. according to heat shield element according to claim 1 (14), it is characterized in that, described safety device is the side wall sections (44) of the wedge shape formed by the groove (31) of the inclination on described passage (30).
3. according to heat shield element according to 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 according to claim 3 (14), it is characterized in that, the side wall sections (41) of described tab shaped has the opening (42) of side direction, and described fastening bolt (18) can be installed in described opening (42) and the side wall sections (41) being parallel to described tab shaped moves towards the direction of the depression (4) with 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 CN103080651A (en) | 2013-05-01 |
| CN103080651B true 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) |
Families Citing this family (6)
| 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 |
| US11603799B2 (en) * | 2020-12-22 | 2023-03-14 | General Electric Company | Combustor for a gas turbine engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (5)
| 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 |
| WO1999047874A1 (en) * | 1998-03-19 | 1999-09-23 | Siemens Aktiengesellschaft | Wall segment for a combustion chamber and combustion chamber |
| 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 |
| ES2531099T3 (en) * | 2009-06-09 | 2015-03-10 | Siemens Ag | Thermal shield element arrangement and procedure for mounting a thermal shield element |
-
2010
- 2010-08-27 EP EP10174291A patent/EP2423596A1/en not_active Withdrawn
-
2011
- 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
- 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
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012025265A2 (en) | 2012-03-01 |
| EP2596290B1 (en) | 2015-08-05 |
| CN103080651A (en) | 2013-05-01 |
| EP2596290A2 (en) | 2013-05-29 |
| RU2561957C2 (en) | 2015-09-10 |
| RU2013113457A (en) | 2014-10-10 |
| WO2012025265A3 (en) | 2013-01-03 |
| EP2423596A1 (en) | 2012-02-29 |
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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 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |