CN206212293U - One kind welding water cooled seal thermal protection struc ture - Google Patents
One kind welding water cooled seal thermal protection struc ture Download PDFInfo
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- CN206212293U CN206212293U CN201621157066.2U CN201621157066U CN206212293U CN 206212293 U CN206212293 U CN 206212293U CN 201621157066 U CN201621157066 U CN 201621157066U CN 206212293 U CN206212293 U CN 206212293U
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- overcoat
- inner sleeve
- thermal protection
- struc ture
- water cooled
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Abstract
One kind welding water cooled seal thermal protection struc ture, is related to the pneumatic thermal protection system field of Aero-Space；Including inner sleeve, overcoat, inlet opening and apopore；Wherein, inner sleeve is hollow tubular structure, and round platform projection is provided with the outer wall at inner sleeve axial direction two ends；Coat suit is fixedly connected in the outside of inner sleeve, and the overcoat axial direction inwall at two ends with the round platform projection at inner sleeve two ends；One end of overcoat has been disposed radially inlet opening；The other end of overcoat has been disposed radially apopore；Outer wall between two round platform projections of inner sleeve forms interlayer water channel with the inwall of overcoat, and inlet opening and apopore are separately positioned on the two ends of intermediate water pipeline outer wall, form the waterway channel of outside cooling water；Realizing electric arc heated equipment components can be with stable operation under high-power, long-time, high pressure operating conditions.
Description
Technical field
The utility model is related to a kind of pneumatic thermal protection system field of Aero-Space, and particularly a kind of welding water cooled seal is prevented
Heat structure.
Background technology
Electro-arc heater is the nucleus equipment of domestic and international aerospace flight vehicle thermal protection ground simulation test research, is solution
The important means that certainly the hypersonic aircraft thermal protection such as guided missile, retrievable satellite, Manned Re-entry Capsules ground is examined.Currently
Domestic Project R＆D is improved constantly to the demand of electro-arc heater performance, high-power, long-time, the electric arc heated of arc chamber pressure high
Equipment turns into domestic Project R＆D and is badly in need of, and lifts high-power electro-arc heater, long-time, the energy of arc chamber pressure high operation
Power, key technology is to improve solar heat protection and the anti-pressure ability of electric arc heated equipment.
At present, the sealing structure of electric arc heated equipment components is mostly that inner-outer sleeve water-cooled compresses O-ring sealing structure, this
The advantage of kind of structure is once scaling loss occurs in inner sleeve, to be convenient for changing, and run under conditions of small-power, low arc chamber pressure steady
It is fixed.With the development of Aero-Space cause, the having for test capability such as high-power, long-time, arc chamber pressure high are urgently needed
Ask so that electric arc heated equipment develops towards large scale, high temperature resistant, high pressure resistant direction, at this time using traditional inner-outer sleeve water
Cold pressing tight O-ring sealing structure, be just easy to occur inner sleeve be heated serious ablation, it is interior be enclosed within high-temperature and high-pressure conditions occur it is very big
Plastic deformation and situations such as sealing structure is failed.
Utility model content
The purpose of this utility model is the above-mentioned deficiency for overcoming prior art, there is provided one kind welding anti-thermojunction of water cooled seal
Structure, realizing electric arc heated equipment components can be with stable operation under high-power, long-time, high pressure operating conditions.
Above-mentioned purpose of the present utility model is achieved by following technical solution：
One kind welding water cooled seal thermal protection struc ture, including inner sleeve, overcoat, inlet opening and apopore；Wherein, inner sleeve is hollow
Tubular structure, inner sleeve axial direction two ends outer wall at be provided with round platform projection；Coat suit is in the outside of inner sleeve, and overcoat axial direction
The inwall at two ends is fixedly connected with the round platform projection at inner sleeve two ends；One end of overcoat has been disposed radially inlet opening；Overcoat it is another
One end has been disposed radially apopore.
In a kind of above-mentioned welding water cooled seal thermal protection struc ture, outer wall and overcoat between two round platform projections of the inner sleeve
Inwall form interlayer water channel, inlet opening and apopore are separately positioned on the two ends of intermediate water pipeline outer wall, form outside cooling water
Waterway channel.
In a kind of above-mentioned welding water cooled seal thermal protection struc ture, the inner sleeve is red copper material, is used in the inner chamber of inner sleeve
Circulation high temperature gas flow.
In a kind of above-mentioned welding water cooled seal thermal protection struc ture, the waterway channel is used for the high-pressure cooling water that circulates.
In a kind of above-mentioned welding water cooled seal thermal protection struc ture, overcoat is stainless steel material.
In a kind of above-mentioned welding water cooled seal thermal protection struc ture, overcoat is adopted with the round platform projection fixed connection place at inner sleeve two ends
It is fixedly connected with soldering or diffusion welding (DW).
In a kind of above-mentioned welding water cooled seal thermal protection struc ture, the internal diameter of the overcoat is variable-diameter structure, along inlet opening extremely
Apopore direction, the internal diameter of overcoat gradually increases, and realizes the buffering to high-pressure cooling water.
The utility model has the following advantages that compared with prior art：
(1), using soldering or diffusion welding (DW) connection inner-outer sleeve, this sealing means are more reliable, in high temperature and height for the utility model
It is less likely to occur cooling water leakage scenarios under the conditions of pressure；
(2) inner sleeve is different from the material that overcoat is chosen in the utility model, and the plasticity occurred under high-temperature and high-pressure conditions becomes
Shape amount also can be different, and the amount of contraction of usual inner sleeve can be very big, and the deflection of overcoat is smaller, using soldering or diffusion welding (DW) by inner sleeve with
Overcoat is connected, and can effectively suppress the plastic deformation of inner sleeve, prevents structural failures；
(3) compared with traditional inner-outer sleeve water-cooled compresses O-ring sealing structure, this welding can cold sealing for the utility model
Structure design is more simple, it is not necessary to consider the position of O-ring seal groove and the cooling by water problem to O-ring.
Brief description of the drawings
Fig. 1 is the schematic diagram that the utility model welds water cooled seal thermal protection struc ture.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
The utility model is made up of inner sleeve 1, overcoat 2, and inner sleeve is assemblied in overcoat, is cooling current between inner sleeve and overcoat
Dynamic passage, inner sleeve is welded to connect with the contact surface of overcoat using soldering or diffusion welding (DW), the stainless steel material that described overcoat is used,
Can prevent from getting rusty, and increase strength of parts, overcoat two ends are provided with inlet opening and apopore；Described inner sleeve uses red copper material
Material, with thermal conduction characteristic very high, outer wall of inside race face is provided with muscle groove, can design cooling-water duct and change improving the water-cooled of inner sleeve
Thermal effect.The welding water cooled seal thermal protection struc ture that the utility model is provided, can use under high temperature and high pressure condition, can be used for
Electric arc heated equipment includes jet pipe, venturi, the isostructural design of electrode.
It is as shown in Figure 1 the schematic diagram of welding water cooled seal thermal protection struc ture, as seen from the figure, one kind welding water cooled seal solar heat protection
Structure, including inner sleeve 1, overcoat 2, inlet opening 3 and apopore 4；Wherein, inner sleeve 1 is hollow tubular structure, the axial direction of inner sleeve 1 two
Round platform projection is provided with the outer wall at end；Outer wall of inside race face is provided with muscle groove；Overcoat 2 is sleeved on the outside of inner sleeve 1, and the axle of overcoat 2
It is fixedly connected to the inwall at two ends is raised with the round platform at the two ends of inner sleeve 1；One end of overcoat 2 has been disposed radially inlet opening 3；Overcoat
2 other end has been disposed radially apopore 4.
Outer wall between 1 two round platform projections of inner sleeve forms interlayer water channel, inlet opening 3 and apopore 4 with the inwall of overcoat 2
The two ends of intermediate water pipeline outer wall are separately positioned on, the waterway channel of outside cooling water is formed, the waterway channel is used for the height that circulates
Cooling water pressure.
Inner sleeve 1 is red copper material, with thermal conduction characteristic very high, the high temperature gas flow that circulates to be used in the inner chamber of inner sleeve 1；Overcoat
2 is stainless steel material, and overcoat 2 is fixed company with the round platform projection fixed connection place at the two ends of inner sleeve 1 using soldering or diffusion welding (DW)
Connect.
The internal diameter of overcoat 2 is variable-diameter structure, and along inlet opening 3 to the direction of apopore 4, the internal diameter of overcoat 2 gradually increases, and is realized
To the buffering of high-pressure cooling water.
The content not being described in detail in the utility model specification belongs to the known technology of those skilled in the art.
Claims (7)
- It is 1. a kind of to weld water cooled seal thermal protection struc ture, it is characterised in that：Including inner sleeve (1), overcoat (2), inlet opening (3) and water outlet Hole (4)；Wherein, inner sleeve (1) is hollow tubular structure, and round platform projection is provided with the outer wall at inner sleeve (1) axial direction two ends；Overcoat (2) outside of inner sleeve (1) is sleeved on, and the inwall at overcoat (2) axial direction two ends fixes company with the round platform projection at inner sleeve (1) two ends Connect；One end of overcoat (2) has been disposed radially inlet opening (3)；The other end of overcoat (2) has been disposed radially apopore (4).
- 2. one kind according to claim 1 welds water cooled seal thermal protection struc ture, it is characterised in that：The inner sleeve (1) two Outer wall between round platform projection forms interlayer water channel with the inwall of overcoat (2), and inlet opening (3) and apopore (4) are separately positioned on The two ends of intermediate water pipeline outer wall, form the waterway channel of outside cooling water.
- 3. one kind according to claim 1 welds water cooled seal thermal protection struc ture, it is characterised in that：The inner sleeve (1) is purple Copper product, is used for the high temperature gas flow that circulates in the inner chamber of inner sleeve (1).
- 4. one kind according to claim 2 welds water cooled seal thermal protection struc ture, it is characterised in that：The waterway channel is used for Circulation high-pressure cooling water.
- 5. one kind according to claim 1 welds water cooled seal thermal protection struc ture, it is characterised in that：Overcoat (2) is stainless steel Material.
- 6. one kind according to claim 1 welds water cooled seal thermal protection struc ture, it is characterised in that：Overcoat (2) and inner sleeve (1) The round platform projection fixed connection place at two ends is fixedly connected using soldering or diffusion welding (DW).
- 7. according to a kind of welding water cooled seal thermal protection struc ture that one of claim 1-6 is described, it is characterised in that：The overcoat (2) internal diameter is variable-diameter structure, and along inlet opening (3) to apopore (4) direction, the internal diameter of overcoat (2) gradually increases, and is realized to height The buffering of cooling water pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621157066.2U CN206212293U (en) | 2016-10-31 | 2016-10-31 | One kind welding water cooled seal thermal protection struc ture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621157066.2U CN206212293U (en) | 2016-10-31 | 2016-10-31 | One kind welding water cooled seal thermal protection struc ture |
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| Publication Number | Publication Date |
|---|---|
| CN206212293U true CN206212293U (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621157066.2U Active CN206212293U (en) | 2016-10-31 | 2016-10-31 | One kind welding water cooled seal thermal protection struc ture |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072535A (en) * | 2017-12-22 | 2018-05-25 | 中国航天空气动力技术研究院 | A kind of heater electrode |
| CN109632866A (en) * | 2018-12-20 | 2019-04-16 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of water-cooled sample holder in high-enthalpy flow |
| CN111263480A (en) * | 2020-01-19 | 2020-06-09 | 中国空气动力研究与发展中心超高速空气动力研究所 | Low burning loss electrode of electric arc heater |
| CN112517776A (en) * | 2020-11-03 | 2021-03-19 | 哈尔滨哈飞航空工业有限责任公司 | Integrated equipment for heating and forming heat-shrinkable tube body |
| CN113079604A (en) * | 2021-04-06 | 2021-07-06 | 中国空气动力研究与发展中心超高速空气动力研究所 | High-pressure water-cooling sealing structure for electric arc heater |
-
2016
- 2016-10-31 CN CN201621157066.2U patent/CN206212293U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072535A (en) * | 2017-12-22 | 2018-05-25 | 中国航天空气动力技术研究院 | A kind of heater electrode |
| CN109632866A (en) * | 2018-12-20 | 2019-04-16 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of water-cooled sample holder in high-enthalpy flow |
| CN109632866B (en) * | 2018-12-20 | 2019-09-27 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of water-cooled sample holder in high-enthalpy flow |
| CN111263480A (en) * | 2020-01-19 | 2020-06-09 | 中国空气动力研究与发展中心超高速空气动力研究所 | Low burning loss electrode of electric arc heater |
| CN112517776A (en) * | 2020-11-03 | 2021-03-19 | 哈尔滨哈飞航空工业有限责任公司 | Integrated equipment for heating and forming heat-shrinkable tube body |
| CN113079604A (en) * | 2021-04-06 | 2021-07-06 | 中国空气动力研究与发展中心超高速空气动力研究所 | High-pressure water-cooling sealing structure for electric arc heater |
| CN113079604B (en) * | 2021-04-06 | 2022-12-30 | 中国空气动力研究与发展中心超高速空气动力研究所 | High-pressure water-cooling sealing structure for electric arc heater |
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