CN110730524A - High-temperature and high-pressure resistant four-way mixing chamber - Google Patents
High-temperature and high-pressure resistant four-way mixing chamber Download PDFInfo
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- CN110730524A CN110730524A CN201911033477.9A CN201911033477A CN110730524A CN 110730524 A CN110730524 A CN 110730524A CN 201911033477 A CN201911033477 A CN 201911033477A CN 110730524 A CN110730524 A CN 110730524A
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- inner sleeve
- shell
- mixing chamber
- inlet
- way mixing
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- 238000002156 mixing Methods 0.000 title claims abstract description 39
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 39
- 210000003739 neck Anatomy 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000000498 cooling water Substances 0.000 claims description 15
- 239000002826 coolant Substances 0.000 claims description 9
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000002242 deionisation method Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/18—Heating by arc discharge
- H05B7/185—Heating gases for arc discharge
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
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Abstract
The invention relates to a high-temperature and high-pressure resistant four-way mixing chamber, belonging to the technical field of an arc heater for an aerospace aerodynamic thermal test; comprises 1 outlet flange, an inner sleeve, an upper shell, 3 inlet flanges and a lower shell; the inner sleeve is of a cross-shaped symmetrical tubular structure; the inner sleeve is provided with 4 ports; the upper shell is a shell structure corresponding to the shape of the inner sleeve; the upper outer shell is sleeved on the upper half surface of the inner sleeve; the lower shell is a shell structure corresponding to the shape of the inner sleeve; the lower outer shell is sleeved on the lower half surface of the inner sleeve; the upper shell and the lower shell form closed coating of the inner sleeve; the outlet flange is sleeved at 1 port of the inner sleeve; and the outlet flange is sleeved on the outer walls of the upper shell and the lower shell; 3 inlet flanges are respectively arranged at the other 3 ports of the inner sleeve; each inlet flange is sleeved on the outer walls of the upper outer shell and the lower outer shell corresponding to the port of the inner sleeve; the invention can simultaneously connect two or three high-power arc heaters, and solves the operation problem of the high-power free jet test bed.
Description
Technical Field
The invention belongs to the technical field of an arc heater for an aerospace aerodynamic thermal test, and relates to a high-temperature and high-pressure resistant four-way mixing chamber.
Background
The construction of the 70MW free jet test bed is the thermal protection test capability for forming complex appearance structural members such as rudder wings, skirt pendulum radomes and the like, and meets the requirements of a ground thermal protection assessment test for low-altitude flight of a novel hypersonic aircraft.
Because the technology of a single 70MW arc heater is not mature enough, the parallel combination operation of two 35MW arc heaters is adopted at present, and a connecting part which can connect and combine the two high-power (35MW) arc heaters and can ensure the stable operation of the two high-power (35MW) arc heaters simultaneously is needed. At present, only the use mode of connecting two arc heaters in parallel is adopted, and a connecting piece integrating the two arc heaters is not designed in a related mode, so that the redundant 2 arc heaters are connected in series and used together.
Disclosure of Invention
The technical problem solved by the invention is as follows: the defects of the prior art are overcome, the high-temperature and high-pressure resistant four-way mixing chamber is provided, two or three high-power arc heaters can be connected at the same time, and the operation problem of a high-power free jet test bed is solved.
The technical scheme of the invention is as follows:
a high-temperature and high-pressure resistant four-way mixing chamber comprises 1 outlet flange, an inner sleeve, an upper shell, 3 inlet flanges and a lower shell; wherein, the inner sleeve is in a cross-shaped symmetrical tubular structure; the inner sleeve is provided with 4 ports; the upper shell is a shell structure corresponding to the shape of the inner sleeve; the upper outer shell is sleeved on the upper half surface of the inner sleeve; the lower shell is a shell structure corresponding to the shape of the inner sleeve; the lower outer shell is sleeved on the lower half surface of the inner sleeve; the upper shell and the lower shell form closed coating of the inner sleeve; the outlet flange is sleeved at 1 port of the inner sleeve; and the outlet flange is sleeved on the outer walls of the upper shell and the lower shell; 3 inlet flanges are respectively arranged at the other 3 ports of the inner sleeve; each inlet flange is sleeved on the outer walls of the upper outer shell and the lower outer shell corresponding to the port of the inner sleeve; the outlet flange is butted with the external spray pipe; each inlet flange was interfaced with 1 external arc heater.
In the four-way mixing chamber with high temperature and high pressure resistance, the four-way mixing chamber further comprises 12 pipe connecting nozzles; the filler neck is of a pipeline structure in the axial vertical direction; wherein, the outer wall of the outlet flange is provided with 3 filler necks; the outer wall of each inlet flange is provided with 3 filler necks respectively.
In the four-way mixing chamber resistant to high temperature and high pressure, 1 pipe connecting nozzle is arranged in the middle of the top of the outlet flange; the bottom of the outlet flange is symmetrically provided with 2 filler necks; the middle part of the top of the inlet flange opposite to the outlet flange is provided with 1 pipe connecting nozzle; the bottom is symmetrically provided with 2 filler necks; the other 2 inlet flanges are provided with 2 pipe connecting nozzles symmetrically at the tops; the middle part of the bottom is provided with 1 filler neck.
In the four-way mixing chamber resistant to high temperature and high pressure, a cooling water tank is reserved between the outer wall of the inner sleeve and the inner wall of the upper shell; the 12 filler necks are all communicated with the cooling water tank.
In the four-way mixing chamber resistant to high temperature and high pressure, 3 pipe connecting nozzles corresponding to the outlet flange are water inlets; 3 filler necks corresponding to the inlet flange opposite to the outlet flange are water inlets; 3 pipe connecting nozzles corresponding to the other 2 inlet flanges are water outlets; the cooling medium sequentially passes through the water inlet and the cooling water tank and flows out of the water outlet, so that heat dissipation is realized.
In the four-way mixing chamber resistant to high temperature and high pressure, the cooling medium is high-pressure water which is subjected to softening and deionization.
In the high-temperature and high-pressure resistant four-way mixing chamber, the diameter of the inner wall of the pipeline of the cross-shaped inner sleeve is 90-110 mm; the wall thickness of the pipeline is 3-7 mm; the section of the cooling water tank is of a rectangular structure; the width of the water tank is 3-6 mm; the depth is 3-4 mm; the corners of the cross-shaped inner sleeve are connected by fillets; the radius of the round corner is 15-20 mm.
In the above four-way mixing chamber resistant to high temperature and high pressure, the working process of the four-way mixing chamber is as follows:
3 external arc heaters emit high-temperature and high-pressure plasma to the inner sleeve through 3 inlet flange ends, and the high-temperature and high-pressure plasma flows out from the outlet flange end after passing through the inner sleeve to realize heating of the external spray pipe; meanwhile, cooling medium passes through 12 filler necks and a cooling water tank to cool the inner sleeve.
In the high-temperature and high-pressure resistant four-way mixing chamber, the inner sleeve bears the impact load of not less than 2 kN.m under the coating shell formed by the upper shell and the lower shell.
In the four-way mixing chamber resistant to high temperature and high pressure, the diameter of the filler neck (5) is 25 mm; the water flow speed of the water inlet pipe connecting nozzle (5) is 25-35 m/s; the heat dissipation capability is not less than 26MW/m2。
Compared with the prior art, the invention has the beneficial effects that:
(1) the high-temperature and high-pressure resistant four-way mixing chamber provided by the invention adopts a cross-shaped structure, and can be connected with two or three high-power arc heaters according to different requirements, so that the combined operation of the high-power heaters is realized;
(2) the four-way mixing chamber resistant to high temperature and high pressure has the advantages of compact structure, small overall dimension, small occupied space and convenience in installation;
(3) the four-way mixing chamber resistant to high temperature and high pressure has the advantages of simple structure, firmness, durability, good cooling and comprehensive performance superior to similar products in the market.
Drawings
FIG. 1 is a top view of a four-way mixing chamber of the present invention;
FIG. 2 is a side view of a four-way mixing chamber of the present invention.
Detailed Description
The invention is further illustrated by the following examples.
The invention provides a high-temperature and high-pressure resistant four-way mixing chamber, which adopts a vacuum brazing technology, wherein an inner sleeve 2 is of a cross structure and can be simultaneously connected with two or three high-power arc heaters, so that the running problem of a high-power free jet test bed is solved. As shown in fig. 1, the device specifically comprises 1 outlet flange 1, an inner sleeve 2, an upper outer shell 3, 3 inlet flanges 4 and a lower outer shell 6; wherein, the inner sleeve 2 is a cross-shaped symmetrical tubular structure; the inner sleeve 2 is provided with 4 ports; the upper shell 3 is a shell structure corresponding to the shape of the inner sleeve 2; the upper outer shell 3 is sleeved on the upper half surface of the inner sleeve 2; the lower shell 6 is a shell structure corresponding to the shape of the inner sleeve 2; the lower shell 6 is sleeved on the lower half surface of the inner sleeve 2; the upper shell 3 and the lower shell 6 form closed coating of the inner sleeve 2; the outlet flange 1 is sleeved at 1 port of the inner sleeve 2; and the outlet flange 1 is sleeved on the outer walls of the upper shell 3 and the lower shell 6; 3 inlet flanges 4 are respectively arranged at the other 3 ports of the inner sleeve 2; each inlet flange 4 is sleeved on the outer walls of the upper outer shell 3 and the lower outer shell 6 corresponding to the ports of the inner sleeve 2; the outlet flange 1 is butted with an external spray pipe; each inlet flange 4 is interfaced with 1 external arc heater. An outlet flange 1 and three inlet flanges 4 are respectively arranged on the four end faces of the inner sleeve 1 for connection and water inlet and outlet. The inner sleeve 2 and the upper and lower shells are cooled by introducing softened and deionized high-pressure water.
As shown in fig. 2, the four-way mixing chamber further comprises 12 filler necks 5; the filler neck 5 is of a pipeline structure in the axial vertical direction; the filler neck 5 has a diameter of 25 mm. Wherein, the outer wall of the outlet flange 1 is provided with 3 filler necks 5; the outer wall of each inlet flange 4 is provided with 3 filler necks 5 respectively. The specific distribution form of the filler neck 5 is as follows: the middle part of the top of the outlet flange 1 is provided with 1 filler neck 5; the bottom of the outlet flange 1 is symmetrically provided with 2 filler necks 5; the middle part of the top of the inlet flange 4 opposite to the outlet flange 1 is provided with 1 filler neck 5; the bottom is symmetrically provided with 2 filler necks 5; the other 2 inlet flanges 4 are provided with 2 filler necks 5 at the tops symmetrically; the middle part of the bottom is provided with 1 filler neck 5. The inner sleeve 2 bears the impact load of not less than 2 kN.m under the coating shell consisting of the upper shell 3 and the lower shell 6. The diameter of the inner wall of the pipeline of the cross-shaped inner sleeve 2 is 90-110 mm; the wall thickness of the pipeline is 3-7 mm; the section of the cooling water tank is of a rectangular structure; the width of the water tank is 3-6 mm; the depth is 3-4 mm; the corners of the cross inner sleeve 2 are connected by fillets; the radius of the round corner is 15-20 mm.
A cooling water tank 7 is reserved between the outer wall of the inner sleeve 2 and the inner wall of the upper shell 3; the 12 filler necks 5 are all communicated with a cooling water tank 7. 3 filler necks 5 corresponding to the outlet flange 1 are water inlets; 3 filler necks 5 corresponding to the inlet flange 4 opposite to the outlet flange 1 are water inlets; 3 pipe connecting nozzles 5 corresponding to the other 2 inlet flanges 4 are water outlets; the cooling medium sequentially passes through the water inlet and the cooling water tank 7 and flows out of the water outlet, so that heat dissipation is realized. The cooling medium is high-pressure water which is softened and deionized.
The working process of the four-way mixing chamber is as follows:
3 external arc heaters emit high-temperature and high-pressure plasma to the inner sleeve 2 through 4 ends of 3 inlet flanges, and the high-temperature and high-pressure plasma flows out from the end of the outlet flange 1 after passing through the inner sleeve 2 to heat the external spray pipe; meanwhile, cooling medium passes through 12 filler necks 5 and a cooling water tank 7 to cool the inner sleeve 2. The water flow speed of the filler neck 5 of the water inlet is 25-35 m/s; the heat dissipation capability is not less than 26MW/m2。
The high-temperature and high-pressure resistant four-way mixing chamber adopts a cross-shaped structure, and can be connected with two or three high-power arc heaters according to different requirements, so that the combined operation of the high-power heaters is realized; the four-way mixing chamber has compact structure, small overall dimension, small occupied space and convenient installation; firm and durable, good in cooling and comprehensively superior to the similar products in the market in performance.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (10)
1. The utility model provides a high temperature and high pressure resistant cross mixing chamber which characterized in that: comprises 1 outlet flange (1), an inner sleeve (2), an upper outer shell (3), 3 inlet flanges (4) and a lower outer shell (6); wherein, the inner sleeve (2) is a cross-shaped symmetrical tubular structure; the inner sleeve (2) is provided with 4 ports; the upper shell (3) is a shell structure corresponding to the shape of the inner sleeve (2); the upper outer shell (3) is sleeved on the upper half surface of the inner sleeve (2); the lower shell (6) is a shell structure corresponding to the shape of the inner sleeve (2); the lower outer shell (6) is sleeved on the lower half surface of the inner sleeve (2); the upper outer shell (3) and the lower outer shell (6) form closed coating of the inner sleeve (2); the outlet flange (1) is sleeved at 1 port of the inner sleeve (2); the outlet flange (1) is sleeved on the outer walls of the upper shell (3) and the lower shell (6); 3 inlet flanges (4) are respectively arranged at the other 3 ports of the inner sleeve (2); each inlet flange (4) is sleeved on the outer walls of the upper outer shell (3) and the lower outer shell (6) corresponding to the ports of the inner sleeve (2); the outlet flange (1) is butted with an external spray pipe; each inlet flange (4) is butted with 1 external arc heater.
2. The four-way mixing chamber of claim 1, wherein: the four-way mixing chamber also comprises 12 filler necks (5); the filler neck (5) is of a pipeline structure in the axial vertical direction; wherein, the outer wall of the outlet flange (1) is provided with 3 filler necks (5); the outer wall of each inlet flange (4) is provided with 3 filler necks (5) respectively.
3. The four-way mixing chamber of claim 2, wherein: the middle part of the top of the outlet flange (1) is provided with 1 filler neck (5); the bottom of the outlet flange (1) is symmetrically provided with 2 filler necks (5); the outlet flange (1) is opposite to the inlet flange (4), and the middle part of the top of the inlet flange is provided with 1 pipe connecting nozzle (5); 2 filler necks (5) are symmetrically arranged at the bottom; the other 2 inlet flanges (4) are symmetrically provided with 2 filler necks (5) at the tops; the middle part of the bottom is provided with 1 filler neck (5).
4. The four-way mixing chamber of claim 3, wherein: a cooling water tank (7) is reserved between the outer wall of the inner sleeve (2) and the inner wall of the upper shell (3); the 12 filler necks (5) are all communicated with the cooling water tank (7).
5. The four-way mixing chamber of claim 4, wherein: 3 pipe connecting nozzles (5) corresponding to the outlet flange (1) are water inlets; 3 pipe connecting nozzles (5) corresponding to the inlet flange (4) opposite to the outlet flange (1) are water inlets; 3 pipe connecting nozzles (5) corresponding to the other 2 inlet flanges (4) are water outlets; the cooling medium sequentially passes through the water inlet and the cooling water tank (7) and flows out of the water outlet, so that heat dissipation is realized.
6. The four-way mixing chamber of claim 5, wherein: the cooling medium is high-pressure water which is subjected to softening and deionization.
7. The four-way mixing chamber of claim 6, wherein: the diameter of the inner wall of the cross inner sleeve (2) is 90-110 mm; the wall thickness of the pipeline is 3-7 mm; the section of the cooling water tank is of a rectangular structure; the width of the water tank is 3-6 mm; the depth is 3-4 mm; the corners of the cross inner sleeve (2) are connected by fillets; the radius of the round corner is 15-20 mm.
8. The four-way mixing chamber of claim 7, wherein: the working process of the four-way mixing chamber is as follows:
3 external arc heaters emit high-temperature and high-pressure plasma to the inner sleeve (2) through the ends of the 3 inlet flanges (4), and the high-temperature and high-pressure plasma flows out from the end of the outlet flange (1) after passing through the inner sleeve (2) to heat the external spray pipe; meanwhile, cooling medium passes through 12 filler necks (5) and a cooling water tank (7) to cool the inner sleeve (2).
9. The four-way mixing chamber of claim 8, wherein: the inner sleeve (2) bears impact load not less than 2 kN.m under a coating shell consisting of the upper outer shell (3) and the lower outer shell (6).
10. The four-way mixing chamber of claim 9, wherein: the diameter of the filler neck (5) is 25 mm; the water flow speed of the water inlet pipe connecting nozzle (5) is 25-35 m/s; the heat dissipation capability is not less than 26MW/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911033477.9A CN110730524A (en) | 2019-10-28 | 2019-10-28 | High-temperature and high-pressure resistant four-way mixing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911033477.9A CN110730524A (en) | 2019-10-28 | 2019-10-28 | High-temperature and high-pressure resistant four-way mixing chamber |
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| Publication Number | Publication Date |
|---|---|
| CN110730524A true CN110730524A (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911033477.9A Pending CN110730524A (en) | 2019-10-28 | 2019-10-28 | High-temperature and high-pressure resistant four-way mixing chamber |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3389189A (en) * | 1965-04-06 | 1968-06-18 | Westinghouse Electric Corp | Method and equipment for the pyrolysis and synthesis of hydrocarbons and other gasesand arc heater apparatus for use therein |
| CN201134972Y (en) * | 2007-11-30 | 2008-10-15 | 中国航天空气动力技术研究院 | AC plasma electric arc heater |
| CN204955371U (en) * | 2015-09-16 | 2016-01-13 | 佛山市顺德区靓迪机械有限公司 | Cooling jacket of extruder |
| CN105597583A (en) * | 2015-12-25 | 2016-05-25 | 中国航天空气动力技术研究院 | Multi-interface electric arc heating gas unwinding mixing chamber |
| CN106686795A (en) * | 2016-10-31 | 2017-05-17 | 中国航天空气动力技术研究院 | High-pressure annular electrode |
| CN106793236A (en) * | 2016-12-19 | 2017-05-31 | 中国航天空气动力技术研究院 | A kind of welding structure tubular pole |
| CN211019306U (en) * | 2019-10-28 | 2020-07-14 | 中国航天空气动力技术研究院 | High-temperature and high-pressure resistant four-way mixing chamber |
-
2019
- 2019-10-28 CN CN201911033477.9A patent/CN110730524A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3389189A (en) * | 1965-04-06 | 1968-06-18 | Westinghouse Electric Corp | Method and equipment for the pyrolysis and synthesis of hydrocarbons and other gasesand arc heater apparatus for use therein |
| CN201134972Y (en) * | 2007-11-30 | 2008-10-15 | 中国航天空气动力技术研究院 | AC plasma electric arc heater |
| CN204955371U (en) * | 2015-09-16 | 2016-01-13 | 佛山市顺德区靓迪机械有限公司 | Cooling jacket of extruder |
| CN105597583A (en) * | 2015-12-25 | 2016-05-25 | 中国航天空气动力技术研究院 | Multi-interface electric arc heating gas unwinding mixing chamber |
| CN106686795A (en) * | 2016-10-31 | 2017-05-17 | 中国航天空气动力技术研究院 | High-pressure annular electrode |
| CN106793236A (en) * | 2016-12-19 | 2017-05-31 | 中国航天空气动力技术研究院 | A kind of welding structure tubular pole |
| CN211019306U (en) * | 2019-10-28 | 2020-07-14 | 中国航天空气动力技术研究院 | High-temperature and high-pressure resistant four-way mixing chamber |
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