CN109538316A - A kind of high silicon oxygen thermal insulation layer of circular ring shape and its heat-insulating method of the rear housing covering for engine abnormal shape - Google Patents
A kind of high silicon oxygen thermal insulation layer of circular ring shape and its heat-insulating method of the rear housing covering for engine abnormal shape Download PDFInfo
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- CN109538316A CN109538316A CN201811409204.5A CN201811409204A CN109538316A CN 109538316 A CN109538316 A CN 109538316A CN 201811409204 A CN201811409204 A CN 201811409204A CN 109538316 A CN109538316 A CN 109538316A
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- silicon oxygen
- high silicon
- cloth
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- rear housing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/14—Casings modified therefor
- F01D25/145—Thermally insulated casings
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The present invention discloses the high silicon oxygen thermal insulation layer of circular ring shape and its heat-insulating method of a kind of rear housing covering for engine abnormal shape, including high silicon oxygen Nomex, high silicon oxygen cloth, connection cloth and high silica fiber sewing thread；High silicon oxygen Nomex, connection cloth and high silicon oxygen cloth are in circular ring shape；High silicon oxygen cloth is divided into the upper and lower, and the internal radius of the high silicon oxygen cloth of lower layer is less than the internal radius of the high silicon oxygen cloth in upper layer；After the high silicon oxygen cloth of the high silicon oxygen cloth in upper layer and lower layer is coated high silicon oxygen Nomex, the annulus outer diameter of the high silicon oxygen cloth of the high silicon oxygen cloth in upper layer and lower layer is sutured by high silica fiber sewing thread, the internal radius of the high silicon oxygen cloth of the high silicon oxygen cloth in upper layer and lower layer with connect cloth docking after sutured.Technical solution of the present invention is structurally reasonable, and a part as engine covering protects the rear housing of irregular shape well, other function admirables have especially important effect to the heat-insulated of unlike material.
Description
Technical field
The present invention relates to high temperature resistant heat insulation layer technical field, in particular to a kind of rear housing covering for engine abnormal shape
The high silicon oxygen thermal insulation layer of circular ring shape and its heat-insulating method.
Background technique
Thermal insulation layer is used for the rear housing skin assemblies of engine, and the insulating layer material that the current country uses is mainly by high silicon oxygen
Woven roving, superfine E-glass fibre mineral wool, high silica wool pad etc..Since every kind of material has its feature, no base material belongs to earliest
The heat-barrier material used is not able to satisfy engine to thermal insulation layer lightweight, heatproof, thermal insulation since its heat resistance, thermal insulation are limited
Requirement.High silicon oxygen grid cloth material need to be laid with multilayer use since density of material is big, and heat-proof quality and assembly performance are limited.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of rear housing coverings for engine abnormal shape
The high silicon oxygen thermal insulation layer of circular ring shape and its heat-insulating method, specific technical solution are as follows:
A kind of high silicon oxygen thermal insulation layer of circular ring shape of the rear housing covering for engine abnormal shape, including high silicon oxygen Nomex,
High silicon oxygen cloth, connection cloth and high silica fiber sewing thread；
The high silicon oxygen Nomex, connection cloth and high silicon oxygen cloth are in circular ring shape；
The high silicon oxygen cloth is divided into the upper and lower, and the internal radius of the high silicon oxygen cloth of lower layer is less than the circle of the high silicon oxygen cloth in upper layer
Ring internal diameter；
After the high silicon oxygen cloth in the upper layer and the high silicon oxygen cloth of lower layer are coated high silicon oxygen Nomex, pass through high silica fiber
Sewing thread sutures the annulus outer diameter of the high silicon oxygen cloth of the high silicon oxygen cloth in upper layer and lower layer；The high silicon oxygen of the high silicon oxygen cloth in upper layer and lower layer
The internal radius of cloth with connect cloth docking after carry out suture form micro- loudspeaker shape, for closely being pasted with engine rear housing skin assemblies
It closes.
A kind of heat-insulating method of the high silicon oxygen thermal insulation layer of circular ring shape of rear housing covering for engine abnormal shape, choosing
With alkali-free cotton through pickling processes to SiO2Content is 96%-98%, shrinks high silicon oxygen acupuncture pad in advance with a thickness of 14mm-19mm, close
Degree is 110kg/m3-170kg/m3As substrate, according to the form of part to high silicon oxygen Nomex by drawing size carry out molding,
Scribing line, is then sewed, is tested after sewing, at sample.
A kind of high silicon oxygen of circular ring shape of rear housing covering for engine abnormal shape is heat-insulated, layer it is characterized in that,
Thermal insulation layer media-resistant temperature can reach 850 DEG C or more, and thermal coefficient is less than 0.037W/m.K, and weight is less than 220g.
Beneficial effects of the present invention: technical solution of the present invention be in the selection of blanket in high silicon oxygen thermal insulation layer guarantee every
The basis of thermal effect, therefore select and changed containing SiO2Content is greater than 96% high silica wool felt, and dioxide-containing silica influences heat-insulated
The heat resistance of layer；The selection of different types of high silica wool felt, the performance that will lead to material has very big difference, therefore selects and change
Into pre- contraction processed high silicon oxygen Nomex, be material low-shrinkage at high temperature, reduce the shrinking percentage of material.Felt
The selection of minuteness degree also has a certain impact to the heat-proof quality of thermal insulation layer, when density is in suitable range, heat-proof quality
It is best.The structural form design of high silicon oxygen limit suture plays a very important role to the service performance of material.Select high silicon oxygen fine
Wei Bu and high silicon oxygen limit sewing thread are coated and are sutured to blanket, because of high silica fiber cloth and high silicon oxygen sewing thread heatproof
Property is good, and the intensity of sewing thread is big, can preferably guarantee the suture quality and performance of high silicon oxygen suture bolsters.Therefore technology of the invention
Scheme properties of product are significantly promoted, and have preferable high temperature resistance, heat-proof quality, assembling, light weight work as high temperature gas flow
When by rear housing covering, hot-air can be completely cut off, guarantee that part works normally at high temperature.Technical solution of the present invention structure
Rationally, the rear housing of protection irregular shape, other function admirables have especially important work to the heat-insulated of unlike material well
With.
Detailed description of the invention
Fig. 1 is thermal insulation layer front schematic view；
Fig. 2 is thermal insulation layer reverse side schematic diagram；
Fig. 3 is thermal insulation layer cross-sectional view.
In figure, 1- high silicon oxygen Nomex, the high silicon oxygen cloth in the upper layer 2-, the high silicon oxygen cloth of 3- lower layer, 4- connection cloth, 5- high silicon oxygen are fine
Tie up sewing thread.
Specific embodiment
A kind of high silicon oxygen thermal insulation layer of circular ring shape of the rear housing covering for engine abnormal shape as shown in Figs. 1-3, including height
Silicon oxygen Nomex 1, high silicon oxygen cloth, connection cloth 4 and high silica fiber sewing thread 5；
The high silicon oxygen Nomex 1, connection cloth 4 and high silicon oxygen cloth are in circular ring shape；
The high silicon oxygen cloth is divided into the upper and lower, and the internal radius of the high silicon oxygen cloth 3 of lower layer is less than the high silicon oxygen cloth 2 in upper layer
Internal radius；
After the high silicon oxygen cloth 2 in the upper layer and the high silicon oxygen cloth 3 of lower layer are coated high silicon oxygen Nomex 1, pass through high silicon oxygen
Fiber sewing thread 5 sutures the annulus outer diameter of the high silicon oxygen cloth 3 of the high silicon oxygen cloth 2 in upper layer and lower layer, and the high silicon oxygen cloth 2 in upper layer is under
The internal radius of the high silicon oxygen cloth 3 of layer with connect the docking of cloth 4 after sutured.
A kind of heat-insulating method of the high silicon oxygen thermal insulation layer of circular ring shape of the rear housing covering for engine abnormal shape selects alkali-free
Cotton is through pickling processes to SiO2Content is 96%-98%, shrinks high silicon oxygen acupuncture pad in advance with a thickness of 14mm-19mm, density is
110kg/m3-170kg/m3As substrate, molding, scribing line are carried out by drawing size to high silicon oxygen Nomex according to the form of part,
Then it is sewed, is tested after sewing, at sample.
Thermal insulation layer media-resistant temperature can reach 850 DEG C or more, and thermal coefficient is less than 0.037W/m.K, and weight is less than 220g.
In order to keep the technical problem to be solved in the present invention, technical solution and advantage more clear below in conjunction with attached drawing and tool
Body embodiment is described in detail.
Embodiment 1
Select SiO2Content is 96%, shrinks high silicon oxygen Nomex in advance, with a thickness of 14mm, density 120kg/m3As base
Material carries out molding according to drawing size to high silicon oxygen Nomex according to the form of part, pierces by mold to high silicon oxygen needle is shunk in advance
Felt crossed, selected the requirement for meeting GJB1873-1994 high silicon oxygen cloth with reference to being cut out by the size of blanket, select
The high silicon oxygen sewing thread for meeting JC/T1089-2008 requirement carries out being stitched into sample as required.
Embodiment 2
Select SiO2Content is 97%, shrinks high silicon oxygen Nomex in advance, with a thickness of 17mm, density 140kg/m3As base
Material carries out molding according to drawing size to high silicon oxygen Nomex according to the form of part, pierces by mold to high silicon oxygen needle is shunk in advance
Felt crossed, selected the requirement for meeting GJB1873-1994 high silicon oxygen cloth with reference to being cut out by the size of blanket, select
The high silicon oxygen sewing thread for meeting JC/T1089-2008 requirement carries out being stitched into sample as required.
Embodiment 3
Select SiO2Content is 98%, shrinks high silicon oxygen Nomex in advance, with a thickness of 19mm, density 160kg/m3As base
Material carries out molding according to drawing size to high silicon oxygen Nomex according to the form of part, pierces by mold to high silicon oxygen needle is shunk in advance
Felt crossed, selected the requirement for meeting GJB1873-1994 high silicon oxygen cloth with reference to being cut out by the size of blanket, select
The high silicon oxygen sewing thread for meeting JC/T1089-2008 requirement carries out being stitched into sample as required.
Claims (3)
1. a kind of high silicon oxygen thermal insulation layer of circular ring shape of rear housing covering for engine abnormal shape, which is characterized in that including high silicon
Oxygen Nomex, high silicon oxygen cloth, connection cloth and high silica fiber sewing thread；
The high silicon oxygen Nomex, connection cloth and high silicon oxygen cloth are in circular ring shape；
The high silicon oxygen cloth is divided into the upper and lower, and the internal radius of the high silicon oxygen cloth of lower layer is less than in the annulus of the high silicon oxygen cloth in upper layer
Diameter；
After the high silicon oxygen cloth in the upper layer and the high silicon oxygen cloth of lower layer are coated high silicon oxygen Nomex, sewed by high silica fiber
Line sutures the annulus outer diameter of the high silicon oxygen cloth of the high silicon oxygen cloth in upper layer and lower layer；
The internal radius of the high silicon oxygen cloth of the high silicon oxygen cloth in upper layer and lower layer carries out suture after cloth docking and is formed horn-like with connecting, and is used for
It is fitted closely with engine rear housing skin assemblies.
2. a kind of high silicon oxygen thermal insulation layer of circular ring shape of rear housing covering for engine abnormal shape according to claim 1
Heat-insulating method, which is characterized in that select alkali-free cotton through pickling processes to SiO2Content is 96%-98%, shrinks high silicon oxygen needle in advance
Thorn mat thickness is 14mm-19mm, density 110kg/m3-170kg/m3As substrate, high silicon oxygen needle is pierced according to the form of part
Felt carries out molding, scribing line by drawing size, is then sewed, is tested after sewing, at sample.
3. a kind of high silicon oxygen of circular ring shape of rear housing covering for engine abnormal shape according to claim 1 is heat-insulated, layer
It is characterized in that, thermal insulation layer media-resistant temperature can reach 850 DEG C or more, thermal coefficient is less than 0.037W/m.K, and weight is less than
220g。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811409204.5A CN109538316A (en) | 2018-11-23 | 2018-11-23 | A kind of high silicon oxygen thermal insulation layer of circular ring shape and its heat-insulating method of the rear housing covering for engine abnormal shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811409204.5A CN109538316A (en) | 2018-11-23 | 2018-11-23 | A kind of high silicon oxygen thermal insulation layer of circular ring shape and its heat-insulating method of the rear housing covering for engine abnormal shape |
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| Publication Number | Publication Date |
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| CN109538316A true CN109538316A (en) | 2019-03-29 |
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| CN201811409204.5A Pending CN109538316A (en) | 2018-11-23 | 2018-11-23 | A kind of high silicon oxygen thermal insulation layer of circular ring shape and its heat-insulating method of the rear housing covering for engine abnormal shape |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201705444U (en) * | 2010-06-08 | 2011-01-12 | 重庆唐工绝热技术有限公司 | Heat insulating sleeve of internal-combustion engine air inlet and outlet system |
| CN203665919U (en) * | 2013-11-06 | 2014-06-25 | 辽宁盛象塑料管业有限公司 | Energy-saving device for heater of charging barrel in extruder equipment |
| CN105369482A (en) * | 2015-11-10 | 2016-03-02 | 陕西华特新材料股份有限公司 | Anti-needle-breaking stitching plate for production of refractory glass fiber needled felt and utilization method for same |
| CN105459504A (en) * | 2015-11-23 | 2016-04-06 | 浙江联洋新材料股份有限公司 | High temperature resistant sound-absorbing insulation felt and processing technology thereof |
-
2018
- 2018-11-23 CN CN201811409204.5A patent/CN109538316A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201705444U (en) * | 2010-06-08 | 2011-01-12 | 重庆唐工绝热技术有限公司 | Heat insulating sleeve of internal-combustion engine air inlet and outlet system |
| CN203665919U (en) * | 2013-11-06 | 2014-06-25 | 辽宁盛象塑料管业有限公司 | Energy-saving device for heater of charging barrel in extruder equipment |
| CN105369482A (en) * | 2015-11-10 | 2016-03-02 | 陕西华特新材料股份有限公司 | Anti-needle-breaking stitching plate for production of refractory glass fiber needled felt and utilization method for same |
| CN105459504A (en) * | 2015-11-23 | 2016-04-06 | 浙江联洋新材料股份有限公司 | High temperature resistant sound-absorbing insulation felt and processing technology thereof |
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Application publication date: 20190329 |
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