CN203769943U - Engine structural component and transpiration cooling structure - Google Patents
Engine structural component and transpiration cooling structure Download PDFInfo
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- CN203769943U CN203769943U CN201320859407.0U CN201320859407U CN203769943U CN 203769943 U CN203769943 U CN 203769943U CN 201320859407 U CN201320859407 U CN 201320859407U CN 203769943 U CN203769943 U CN 203769943U
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- water conservancy
- conservancy diversion
- hole
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- floating pad
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- 238000001816 cooling Methods 0.000 title claims abstract description 73
- 230000005068 transpiration Effects 0.000 title abstract 4
- 238000007667 floating Methods 0.000 claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 84
- 239000002737 fuel gas Substances 0.000 claims description 10
- 238000013459 approach Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 20
- 238000005266 casting Methods 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000010304 firing Methods 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an engine structural component and a transpiration cooling structure, relates to the technical field of energy and power combustion, and solves the technical problem of high difficulty in integral casting of a floating tile block due to mutual interference of molded cores in a demolding process in the prior art. The engine structural component comprises a plate body and at least two flow guide through holes penetrating through the plate body, wherein the flow guide through holes are inclined holes, and the flowing-out directions of the flow guide through holes are parallel. The transpiration cooling structure comprises an inner-layer shell and an outer-layer shell; the inner-layer shell is the engine structural component provided by the utility model; at least two punch holes are formed in the outer-layer shell; cooling air flow flowing out of the punch holes can flow into the flow guide through holes and form a cooling air film on the surface of one side, which is close to high-temperature air, of the inner-layer shell after flowing out of the flow guide through holes; and projections of the punch holes on the inner-layer shell along the vertical direction are positioned between every two adjacent flow guide through holes. According to the engine structural component and the transpiration cooling structure, the difficulty in manufacturing of the engine structural component with the flow guide through holes is reduced.
Description
Technical field
The utility model relates to energy and power engineering field of combustion technology, relates in particular to a kind of engine structure part and the cooling structure of dispersing of this engine structure part is set.
Background technique
Firing chamber (English is: combustor) be in combustion gas wheel for organizing the device of fuel generation combustion reaction, burner inner liner is for arranging to participate in the assembly of burning, blending and cooling-air in firing chamber.
The burner inner liner of aeroengine combustor buring chamber is general all works in up to the even combustion gas of higher temperature of 2000K (gas that combustion gas produces after referring to fuel combustion) in temperature.Current any material all can not be for a long time so worked under rugged environment, therefore must carry out the burner inner liner of aeroengine combustor buring chamber coolingly, reduces life-span of firing chamber or motor to prevent it from being burnt out by high-temperature fuel gas.
In prior art, for the aeroengine combustor buring chamber basic type of cooling of burner inner liner have air film cooling, impact cooling (English is: impingement cooling), disperse cooling (English is: effusion cooling) etc., wherein: impacting cooling is a kind of mode of being impacted wall and reduced wall surface temperature by high velocity air.
Dual-layer wall (English is: double wall) cooling structure can be introduced two or more basic types of cooling simultaneously, wherein: impact-disperse methods for cooling and be cooling by impacting, disperse a kind of high efficiency cooling mode that cooling technology combines with double-wall structure.Disperse cooling in the comparatively common type of cooling be that many inclined holes are dispersed cooling; many inclined holes are dispersed cooling referring at burner inner liner wall and are got the inclined hole that a large amount of diameters are very little; cooling blast (be called for short: cooling air or cold air) is incided in the high temperature main flow that high-temperature fuel gas forms and is gone by aperture; by high temperature main flow and wall isolation, play the cooling structure of the effect of protection wall.
It is that a kind of simultaneously application impacted the structure that cooling and many inclined holes are dispersed cooling technology that impact-many inclined holes are dispersed cooling structure, as shown in FIG. 1 to 3, the burner inner liner that impact-many inclined holes in prior art in firing chamber are dispersed in cooling structure comprises floating pad 1 and load housing 2 double-layer structures, wherein: it is the structure (referred to as domain structure) of ring-type that outer field load housing 2 adopts entirety, internal layer floating pad 1 as shown in Figure 2, it is connected with load housing 2 by screw.Some floating pads 1 are spliced to form domain structure.
As shown in Figure 2, impact-many inclined holes are dispersed on the load housing 2 of cooling structure ectomesoderm and are being distributed perpendicular to the impact opening 21 of internal layer wall, the floating pad 1 of internal layer contacts with high-temperature fuel gas, and on floating pad 1, dense distribution multiple inclined holes (being called for short: many inclined holes).While work in firing chamber, cooling blast is formed after high velocity air impacts floating pad 1 and is flowed out by many inclined holes 110 by impact opening 21, forms cooling air film in floating pad inner side (this side is the side that floating pad approaches high-temperature fuel gas) 130.
In prior art, in order to shorten the process-cycle, cut down finished cost, the floating pad of burner inner liner need to pass through the machine shaping of cast-in-block mode.
At least there is following technical problem in prior art:
In the trial that realizes many inclined holes on floating pad and floating pad integral casting forming, those skilled in the art find: because floating pad is as shown in Figure 2 with radian, cause each many inclined hole 110 axis not parallel mutually, cause core in withdrawing pattern process mutually to interfere, finally affect floating pad cast inblock, cause floating pad cast inblock difficulty larger.
Model utility content
One of them object of the present utility model is the cooling structure of dispersing that proposes a kind of engine structure part and this engine structure part is set, solve prior art and existed core in withdrawing pattern process mutually to interfere, caused the larger technical problem of floating pad cast inblock difficulty.Many technique effects that the utility model optimal technical scheme can produce refer to below sets forth.
For achieving the above object, the utility model provides following technological scheme:
The engine structure part that the utility model embodiment provides, comprises plate body and runs through at least two water conservancy diversion through holes of described plate body, wherein:
Described water conservancy diversion through hole is inclined hole, described water conservancy diversion through hole to go out flow path direction parallel each other.
At one preferably or alternatively in embodiment, the floating pad that described engine structure part is motor.
At one preferably or alternatively in embodiment, the flow path direction that enters of each described water conservancy diversion through hole all goes out flow path direction and coincides with it, and the cross section external frame of described water conservancy diversion through hole is circular, ellipse or polygonal.
At one, preferably or alternatively in embodiment, the cross section external frame of described water conservancy diversion through hole is circular or oval, and the shaft axis of different described water conservancy diversion through holes is parallel to each other.
At one, preferably or alternatively in embodiment, the aperture of described water conservancy diversion through hole is 0.5mm～3mm.
At one, preferably or alternatively in embodiment, described water conservancy diversion through hole runs through inner surface and the outer surface of described floating pad along the thickness direction of described floating pad, and inner surface and the outer surface of described floating pad are curved surface;
Described inner surface is the side surface that described floating pad approaches high-temperature fuel gas.
At one, preferably or alternatively in embodiment, the minimum angle of the tangent plane of the outer surface of the described floating pad that enters flow path direction and described water conservancy diversion through hole place of described water conservancy diversion through hole is 15 °～60 °.
At one, preferably or alternatively in embodiment, described angle is 30 °.
What the utility model provided disperses cooling structure, comprises internal layer shell and outer casing, wherein:
The engine structure part that described internal layer shell provides for the arbitrary technological scheme of the utility model;
On described outer casing, be provided with at least two impact openings, the side surface that the cooling blast being flowed out by described impact opening can flow into described water conservancy diversion through hole and approach high-temperature gas at described internal layer shell from described water conservancy diversion through hole flows out forms cooling air film;
Described impact opening vertically drops on projection on described internal layer shell between two adjacent described water conservancy diversion through holes.
At one, preferably or alternatively in embodiment, the spacing between described outer casing and described internal layer shell is 1mm～5mm, and the aperture of described impact opening is 0.5mm～3mm.
At one, preferably or alternatively in embodiment, the described outer casing that enters flow path direction and described impact opening place of described impact opening is 80 °～100 ° away from the minimum angle of the tangent plane of a side surface of described internal layer shell.
At one, preferably or alternatively in embodiment, described internal layer shell is floating pad, and described outer casing is load housing,
At one, preferably or alternatively in embodiment, the cross section external frame of described water conservancy diversion through hole is circular or oval, and has angle between the shaft axis of described water conservancy diversion through hole and the axial direction of described floating pad.
Based on technique scheme, the utility model embodiment at least can produce following technique effect:
While adopting integral casting forming technique to manufacture the engine structure part (being preferably floating pad) that the utility model provides, due to water conservancy diversion through hole, (this water conservancy diversion number of through-holes is more and be inclined hole, so also can be called many inclined holes) to go out flow path direction parallel each other, so when withdrawing pattern, as long as go out flow path direction or the direction withdrawing pattern that flow path direction parallels that goes out with water conservancy diversion through hole along water conservancy diversion through hole, the part (this part also referred to as: core) that just can be successfully the film body (for example: cere) that is positioned at each water conservancy diversion through hole and supports each water conservancy diversion through hole be embedded in to water conservancy diversion through hole is extracted from water conservancy diversion through hole, avoid the phenomenon that in withdrawing pattern process, core is interfered mutually to occur, so reduced the engine structure part cast-in-block difficulty such as floating pad, exist core in withdrawing pattern process mutually to interfere so solved prior art, cause the larger technical problem of floating pad cast inblock difficulty.
Simultaneously, because water conservancy diversion through hole is inclined hole, so in the time that cooling blast flows through from water conservancy diversion through hole, the air-flow flowing out is more pressed close to the surface of engine structure part, more easily form cooling air film on the surface of engine structure part, so can improve the cooling effectiveness of cooling blast, improve the reliability of engine structure part.
The optimal technical scheme that the utility model provides compared with prior art at least can produce following technique effect:
1, all water conservancy diversion through hole axial directions are consistent, do not affect wax-pattern and extract smoothly from mould, can realize the engine structure part cast inblock processing of floating pad and even all application the technical program, thereby shorten the process-cycle, cut down finished cost.
2, floating pad has certain radian, parallel to each other in order to ensure all many inclined holes axis, the shaft axis of many inclined holes and floating pad axially produce an angle, the existence of this angle can increase wall heat exchange area on the one hand, can improve on the other hand the adherent effect of air film, and then strengthen the cooling effect to wall.
Brief description of the drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram of position relationship between the burner inner liner that provides in prior art and casing;
Fig. 2 is position relationship between the load housing of prior art Flame cylinder and floating pad
Schematic diagram;
Fig. 3 is that in prior art, impact opening vertically drops on the projection on floating pad and floats
The schematic diagram of position relationship between many inclined holes on moving tile fragment;
What a kind of mode of execution that Fig. 4 is the utility model embodiment provided disperse cooling structure
The schematic diagram of position relationship between internal layer shell and outer casing;
The schematic diagram of water conservancy diversion through hole on the floating pad that Fig. 5 provides for the utility model embodiment;
Reference character: 1, floating pad; 11, plate body; 110, many inclined holes; 12, water conservancy diversion through hole; 130, inner side; 13, inner surface; 14, outer surface; 2, load housing; 21, impact opening; 22, projection; L1, shaft axis; L2, shaft axis; L3, shaft axis; α, angle.
Embodiment
Can understand the distinctive points between content of the present utility model and the utility model and prior art with reference to accompanying drawing Fig. 1～Fig. 5 and word content below.Below by accompanying drawing and enumerate optional embodiments' more of the present utility model mode, the technical solution of the utility model (comprising optimal technical scheme) is described in further detail.It should be noted that: any technical characteristics in the present embodiment, any technological scheme is all one or more in technical characteristics or the optional technological scheme of plurality of optional, cannot exhaustive all alternative technical characteristicss of the present utility model and alternative technological scheme in order to describe succinct need in presents, also the mode of execution that is not easy to each technical characteristics all emphasizes that it is one of optional numerous embodiments, so those skilled in the art should know: arbitrary technological means that the utility model can be provided is replaced or any two or more technological means or technical characteristics that the utility model is provided combine mutually and obtain new technological scheme.Any technical characteristics in the present embodiment and any technological scheme all do not limit protection domain of the present utility model, protection domain of the present utility model should comprise those skilled in the art do not pay creative work thinkable any alternate embodiments and those skilled in the art any two or more technological means that the utility model is provided or technical characteristics combine mutually and the new technological scheme that obtains.
The utility model embodiment provides a kind of and has been convenient to the engine structure part that withdrawing pattern, manufacture difficulty are little and the cooling structure of dispersing of this engine structure part is set.
Technological scheme the utility model being provided below in conjunction with Fig. 4～Fig. 5 is carried out more detailed elaboration.
As shown in Fig. 4～Fig. 5, the engine structure part that the utility model embodiment provides, this engine structure part is preferably the floating pad 1 of motor, at least two water conservancy diversion through holes 12 that it comprises plate body 11 and runs through plate body 11, the concrete number of water conservancy diversion through hole 12 can be set as required, wherein:
Water conservancy diversion through hole 12 is inclined hole, water conservancy diversion through hole 12 go out flow path direction be fluid flow out direction parallel each other.The flow path direction that enters of water conservancy diversion through hole 12 is that the direction that fluid flows into is preferably also parallel to each other each other.
In the time adopting integral casting forming technique to manufacture the engine structure part (being preferably floating pad 1) that the utility model provides, due to water conservancy diversion through hole 12 to go out flow path direction parallel each other, so when withdrawing pattern, as long as go out flow path direction or the direction withdrawing pattern that flow path direction parallels that goes out with water conservancy diversion through hole 12 along water conservancy diversion through hole 12, the part (this part also referred to as: core) that just can be successfully the film body (for example: cere) that is positioned at each water conservancy diversion through hole 12 and supports each water conservancy diversion through hole 12 be embedded in to water conservancy diversion through hole 12 is extracted from water conservancy diversion through hole 12, avoid the phenomenon that in withdrawing pattern process, core is interfered mutually to occur, so reduced floating pad 1 difficulty such as cast-in-block such as part such as engine structure such as grade, exist core in withdrawing pattern process mutually to interfere so solved prior art, cause the larger technical problem of floating pad 1 cast inblock difficulty.
Simultaneously, because water conservancy diversion through hole 12 is inclined hole, so in the time that cooling blast flows through from water conservancy diversion through hole 12, the cooling blast flowing out is more pressed close to the surface of engine structure part (for example: floating pad 1), more easily form cooling air film on the surface of engine structure part, so can improve the cooling effectiveness of cooling blast, improve the reliability of engine structure part.
As preferably or alternatively mode of execution of one, the flow path direction that enters of each water conservancy diversion through hole 12 all goes out flow path direction and coincides with it, and the cross section external frame of water conservancy diversion through hole 12 is circle, ellipse or polygonal, the cross section external frame of water conservancy diversion through hole 12 is preferably circle, and the shaft axis of different water conservancy diversion through holes 12 to parallel as shown in Figure 4 be each other L1 ∥ L2 ∥ L3.
Because water conservancy diversion through hole 12 is inclined hole, be ellipse so it enters flow port and goes out flow port, but its cross section (cross section is the cross section vertical with the shaft axis of solid of rotation) is for circular.
Certainly, enter flow path direction and its of each water conservancy diversion through hole 12 go out between flow path direction, also to have angle.Now, not only need to pull out one-off pattern along the opposite direction that enters flow path direction of water conservancy diversion through hole 12, and need to pull out one-off pattern along the flow path direction that goes out of water conservancy diversion through hole 12.
The shape of the cross section of water conservancy diversion through hole 12 can be also the shapes such as square, rectangular or pentagon.
As preferably or alternatively mode of execution of one, when the cross section external frame of water conservancy diversion through hole 12 is circular, the aperture of water conservancy diversion through hole 12 is 0.5mm～3mm, for example, can be 1.75mm.
Cooling blast, by after the water conservancy diversion through hole 12 in above-mentioned aperture, more easily forms cooling air film on the surface of floating pad 1.
As preferably or alternatively mode of execution of one, water conservancy diversion through hole 12 runs through inner surface (inner surface is the side surface that floating pad 1 approaches high-temperature fuel gas) and the outer surface of floating pad 1 along the thickness direction of floating pad 1, inner surface and the outer surface of floating pad 1 are curved surface.
When floating pad 1 and the load housing 2 of above-mentioned shape is used in conjunction with, between its inner surface and load housing 2, can form certain interval, the mobile certain distance of cooling blast that is conducive to enter from load housing 2, more disperse, enter equably water conservancy diversion through hole 12.Spacing between load housing 2 and floating pad 1 can be 1mm～5mm, is preferably 1.5mm.As preferably or alternatively mode of execution of one, as shown in Figure 5, the minimum angle α of the tangent plane of the outer surface of the floating pad 1 that enters flow path direction and water conservancy diversion through hole 12 places of water conservancy diversion through hole 12 is (if be used as the cooling blast that enters water conservancy diversion through hole 12 as light, this angle α can be considered as: reference angle) in the time that water conservancy diversion through hole 12 is circular hole or elliptical aperture, this angle α is preferably the angle of the shaft axis of water conservancy diversion through hole 12 and the tangent line of the projection of this shaft axis on floating pad 1.This angle α is 15 °～60 °, for example: this angle α can be 30 °.
Above-mentioned angle α can ensure that cooling blast enters water conservancy diversion through hole 12 with less resistance, avoids the aerodynamic loss of cooling blast.
Because the flow path direction that enters of each water conservancy diversion through hole 12 all goes out flow path direction and coincides with it, so the minimum angle α of the tangent plane of the inner surface of the floating pad that goes out flow path direction and water conservancy diversion through hole place of water conservancy diversion through hole can be also 15 °～60 °.
What the utility model embodiment provided disperse cooling structure comprises internal layer shell and outer casing, and outer casing is preferably load housing 2, and internal layer shell is preferably floating pad 1, wherein:
The engine structure part that floating pad 1 provides for the arbitrary technological scheme of the utility model.
On load housing 2, be provided with at least two impact openings 21, this impact opening 21 is preferably cylindrical hole, and its aperture can be 0.5mm～3mm.The cooling blast being flowed out by impact opening 21 can flow into water conservancy diversion through hole 12 and approach high-temperature gas (for example: a high-temperature fuel gas) side surface at floating pad 1 from water conservancy diversion through hole 12 flows out and form cooling air film.
Impact opening 21 vertically drops on projection on floating pad 1 between two adjacent water conservancy diversion through holes 12.
The spacing that load housing 2 arranges between the region that the region of impact opening 21 and floating pad 1 arrange water conservancy diversion through hole 12 is preferably 1mm～5mm.
In Fig. 4 and Fig. 5, high-temperature fuel gas and cooling air mainly flow along the axial direction of floating pad 1 and load housing 2.
Said structure can make the cooling blast that impact opening 21 flows out comparatively disperse, enter uniformly different multiple water conservancy diversion through holes 12, and then form thickness homogeneous at the side surface that floating pad 1 approaches high-temperature fuel gas, the better cooling air film of continuity, and then contribute to heat resistance, the reliability of the cooling effectiveness and the floating pad 1 that improve cooling blast.
For realizing both be fixedly connected with of load housing 2 and floating pad 1, can in floating pad 1 casting process, form in the lump attachment post, after attachment post is processed to outside thread, allow and have externally threaded part through the mounting hole on load housing 2 on attachment post and match with setscrew nut, thereby can realize being fixedly connected with of load housing 2 and floating pad 1.Certainly, the mode that is fixedly connected with of load housing 2 and floating pad 1 is not limited in employing disclosed mode (for example: can adopt welding or screw, Stud connection) above.
As preferably or alternatively mode of execution of one, the load housing 2 that enters flow path direction and impact opening 21 places of impact opening 21 is 80 °～100 ° away from the minimum angle of the tangent plane of a side surface of floating pad 1, is preferably 90 °.
Said structure cooling blast enters in the process of impact opening 21 that resistance is little, and aerodynamic loss is few, so be conducive to cooling blast smooth and easy, enter impact opening 21 fast.
Certainly, engine structure part can be also other engine components outside the floating pad 1 of motor.
Above-mentioned arbitrary technological scheme disclosed in the utility model unless otherwise stated, if it discloses number range, so disclosed number range is preferred number range, any it should be appreciated by those skilled in the art: preferred number range is only the obvious or representative numerical value of technique effect in many enforceable numerical value.Because numerical value is more, cannot be exhaustive, so the utility model just discloses part numerical value to illustrate the technical solution of the utility model, and the above-mentioned numerical value of enumerating should not form the restriction of the utility model being created to protection domain.
If used the word such as " first ", " second " to limit component herein, those skilled in the art should know: the use of " first ", " second " is only used to be convenient to describe above component are distinguished as not having outside Stated otherwise, and above-mentioned word does not have special implication.
Simultaneously, if above-mentioned the utility model discloses or has related to component or the structural member of connection fastened to each other, so, unless otherwise stated, be fixedly connected with and can be understood as: can dismantle and be fixedly connected with (for example using bolt or screw to connect), also can be understood as: non-removable being fixedly connected with (for example rivet, weld), certainly, connection fastened to each other also can for example, be replaced (obviously cannot adopt except integrally formed technique) by integral type structure (use casting technique is integrally formed to be created).
In addition, in the disclosed arbitrary technological scheme of above-mentioned the utility model applied for the term that represents position relationship or shape unless otherwise stated its implication comprise and its approximate, similar or approaching state or shape.Arbitrary parts that the utility model provides can be both to be assembled by multiple independent constituent elements, the produced separate part of the technique that also can be one of the forming.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characteristics is equal to replacement embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope of the utility model request protection.
Claims (7)
1. an engine structure part, is characterized in that, comprise plate body and run through at least two water conservancy diversion through holes of described plate body, wherein:
Described water conservancy diversion through hole is inclined hole, described water conservancy diversion through hole to go out flow path direction parallel each other; The floating pad that described engine structure part is motor; The flow path direction that enters of each described water conservancy diversion through hole all goes out flow path direction and coincides with it, and the cross section external frame of described water conservancy diversion through hole is circular or oval; The shaft axis of different described water conservancy diversion through holes is parallel to each other;
Described water conservancy diversion through hole runs through inner surface and the outer surface of described floating pad along the thickness direction of described floating pad, inner surface and the outer surface of described floating pad are curved surface;
Described inner surface is the side surface that described floating pad approaches high-temperature fuel gas;
The minimum angle of the tangent plane of the outer surface of the described floating pad that enters flow path direction and described water conservancy diversion through hole place of described water conservancy diversion through hole is 15 °～60 °.
2. engine structure part according to claim 1, is characterized in that, the aperture of described water conservancy diversion through hole is 0.5mm～3mm.
3. engine structure part according to claim 1, is characterized in that, described angle is 45 °.
4. disperse a cooling structure, it is characterized in that, comprise internal layer shell and outer casing, wherein:
Described internal layer shell is the arbitrary described engine structure part of claim 1-3;
On described outer casing, be provided with at least two impact openings, the side surface that the cooling blast being flowed out by described impact opening can flow into described water conservancy diversion through hole and approach high-temperature gas at described internal layer shell from described water conservancy diversion through hole flows out forms cooling air film;
Described impact opening vertically drops on projection on described internal layer shell between two adjacent described water conservancy diversion through holes.
5. the cooling structure of dispersing according to claim 4, is characterized in that, the spacing between described outer casing and described internal layer shell is 1mm～5mm, and the aperture of described impact opening is 0.5mm～3mm.
6. the cooling structure of dispersing according to claim 4, is characterized in that, the described outer casing that enters flow path direction and described impact opening place of described impact opening is 80 °～100 ° away from the minimum angle of the tangent plane of a side surface of described internal layer shell.
7. according to the cooling structure of dispersing described in claim 4 or 5 or 6, it is characterized in that, described outer casing is load housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859407.0U CN203769943U (en) | 2013-12-24 | 2013-12-24 | Engine structural component and transpiration cooling structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859407.0U CN203769943U (en) | 2013-12-24 | 2013-12-24 | Engine structural component and transpiration cooling structure |
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| CN203769943U true CN203769943U (en) | 2014-08-13 |
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| CN201320859407.0U Expired - Lifetime CN203769943U (en) | 2013-12-24 | 2013-12-24 | Engine structural component and transpiration cooling structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197373A (en) * | 2014-08-26 | 2014-12-10 | 南京航空航天大学 | Aero-engine combustor with variable-cross-section step-shaped multiple-inclined-hole cooling structure used |
| CN109340825A (en) * | 2018-09-20 | 2019-02-15 | 西北工业大学 | A kind of flame combustion chamber tube wall surface using novel convex wall inclined hole |
| CN109882314A (en) * | 2019-03-08 | 2019-06-14 | 西北工业大学 | The double wall cooling structure with transverse wave impact orifice plate for vector spray |
| CN109990309A (en) * | 2019-03-05 | 2019-07-09 | 南京航空航天大学 | A kind of compound cooling structure of combustion chamber wall surface and turboshaft engine reverse flow type combustor |
| CN111207412A (en) * | 2020-01-17 | 2020-05-29 | 西北工业大学 | Combustor flame tube adopting floating tile |
| WO2021083338A1 (en) * | 2019-10-31 | 2021-05-06 | 芜湖美的厨卫电器制造有限公司 | Gas device |
| CN115930259A (en) * | 2023-01-31 | 2023-04-07 | 上海电气燃气轮机有限公司 | Heat insulation tile and heat shield of combustion chamber of gas turbine |
| CN115949972A (en) * | 2023-01-29 | 2023-04-11 | 中国航发沈阳发动机研究所 | Flame tube wall cooling strengthening design method |
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2013
- 2013-12-24 CN CN201320859407.0U patent/CN203769943U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197373A (en) * | 2014-08-26 | 2014-12-10 | 南京航空航天大学 | Aero-engine combustor with variable-cross-section step-shaped multiple-inclined-hole cooling structure used |
| CN104197373B (en) * | 2014-08-26 | 2016-04-06 | 南京航空航天大学 | A kind of aeroengine combustor buring room adopting variable cross-section step type effusion wall cooling structure |
| CN109340825A (en) * | 2018-09-20 | 2019-02-15 | 西北工业大学 | A kind of flame combustion chamber tube wall surface using novel convex wall inclined hole |
| CN109990309A (en) * | 2019-03-05 | 2019-07-09 | 南京航空航天大学 | A kind of compound cooling structure of combustion chamber wall surface and turboshaft engine reverse flow type combustor |
| CN109882314A (en) * | 2019-03-08 | 2019-06-14 | 西北工业大学 | The double wall cooling structure with transverse wave impact orifice plate for vector spray |
| CN109882314B (en) * | 2019-03-08 | 2021-09-10 | 西北工业大学 | Double-walled cooling structure with transverse corrugated impingement orifice plate for a vectoring nozzle |
| WO2021083338A1 (en) * | 2019-10-31 | 2021-05-06 | 芜湖美的厨卫电器制造有限公司 | Gas device |
| CN111207412A (en) * | 2020-01-17 | 2020-05-29 | 西北工业大学 | Combustor flame tube adopting floating tile |
| CN115949972A (en) * | 2023-01-29 | 2023-04-11 | 中国航发沈阳发动机研究所 | Flame tube wall cooling strengthening design method |
| CN115930259A (en) * | 2023-01-31 | 2023-04-07 | 上海电气燃气轮机有限公司 | Heat insulation tile and heat shield of combustion chamber of gas turbine |
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Address after: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Patentee after: AECC COMMERCIAL AIRCRAFT ENGINE Co.,Ltd. Address before: 201108 Shanghai city Minhang District Lotus Road No. 3998 Patentee before: AVIC Commercial Aircraft Engine Co.,Ltd. |
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Granted publication date: 20140813 |
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