CN215744198U - Two-phase flow water spraying device for reducing high-temperature exhaust temperature - Google Patents
Two-phase flow water spraying device for reducing high-temperature exhaust temperature Download PDFInfo
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- CN215744198U CN215744198U CN202121427845.0U CN202121427845U CN215744198U CN 215744198 U CN215744198 U CN 215744198U CN 202121427845 U CN202121427845 U CN 202121427845U CN 215744198 U CN215744198 U CN 215744198U
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Abstract
The utility model relates to a two-phase flow water spraying device for reducing high-temperature exhaust temperature, which comprises a mounting seat, an air ventilation seat, a water through pipe and an air ventilation pipe, wherein the mounting seat is provided with a plurality of through holes; the mount pad imbeds on high temperature exhaust passage's wall fixedly sealed, and ventilation seat and mount pad fixed seal are connected, and ventilation seat and mount pad all open central through-hole, and the one end fixed seal cartridge of breather pipe is in the central through-hole of mount pad, and the central through-hole and the breather pipe intercommunication of ventilation seat, the one end fixed seal cartridge of water service pipe are in the central through-hole of ventilation seat, and the breather pipe cover is in the water service pipe outside, and water service pipe and coaxial setting of breather pipe. This neotype cooling structure, single channel water spray rod have spout jam easy maintenance, and the water spray atomization is effectual, and rigidity is high, and non-deformable is heated, and temperature control range is wide.
Description
Technical Field
The technical field is as follows: the equipment is mainly applied to cooling high-temperature gas of aerospace and aviation ground test beds, and can be applied to industries needing to quickly reduce exhaust temperature, such as nonferrous industry, metallurgy industry, chemical industry and the like.
Background
With the continuous development of the aviation industry in China, the demand for the aviation engine with advanced performance is urgent. The aero-engine is a key link and a high-value link in the whole aviation industry chain, and has been a bottleneck problem which restricts the development of the aviation industry in China for a long time. The ground test bed is used as a main device for testing the engine and needs to be developed along with the development of the engine. The working condition of the high-performance engine is more and more rigorous, and the ground test equipment is used as main equipment for testing and judging the performance of the engine, so that the similar working environment is more and more difficult to realize for the aero-engine. Along with the increase of the temperature and the pressure of main stream exhaust of an aircraft engine, tail gas needs to be cooled for protecting rear-end equipment, and high-performance cooling equipment is an important index for judging a piece of test equipment.
The main stream temperature of the exhaust gas of the existing aeroengine combustion chamber can reach 1800 ℃ or even higher, ground test equipment needs to provide the working condition of the aeroengine combustion chamber, and in order to ensure that rear-end equipment can be normally used at the temperature, the mode that latent heat of vaporization of water for water injection absorbs a large amount of heat is generally adopted for cooling. The water spray rod is a commonly used cooling structure, and the single-channel water spray rod has the problems that the nozzle is blocked and cannot be detached, the water spray atomization effect is poor, the rigidity is poor, the heating is easy to change, and the temperature control range is narrow.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is that: the water spray rod with a double-channel structure is adopted, the rigidity of the water spray rod is structurally increased compared with a single water spray rod, and the water spray rod is prevented from being seriously deformed due to long penetration into equipment under high-speed high-temperature airflow; the mode that water spray rod adopted gas and water to get into simultaneously in the performance forms two-phase flow in the spray lance inside, and the spout department atomizing effect is better, and single water spray rod cooling effect is better. Meanwhile, when the temperature of the main stream gas to be cooled is lower, the mode of only introducing air can be adopted, the cooling range of the water spray rod is enlarged, and the temperature control effect is better. The water spray rod adopts a detachable structural form, so that the equipment is convenient to overhaul and maintain. The application of the device has certain promotion significance on aeroengine ground test equipment, and meanwhile, the device also has reference effect on other industries with similar mechanisms.
The technical scheme is as follows: the two-phase flow water spraying device for reducing the high-temperature exhaust temperature comprises a mounting seat 2, a ventilation seat 4, a water pipe 6 and a ventilation pipe 13;
the installation seat is fixedly and hermetically embedded in the wall of the high-temperature exhaust channel, the ventilation seat is fixedly and hermetically connected with the installation seat, the ventilation seat and the installation seat are respectively provided with a central through hole, one end of the vent pipe is fixedly and hermetically inserted in the central through hole of the installation seat, the central through hole of the ventilation seat is communicated with the vent pipe, one end of the water pipe is fixedly and hermetically inserted in the central through hole of the ventilation seat, the vent pipe is sleeved outside the water pipe, and the water pipe and the vent pipe are coaxially arranged;
the air vent seat is provided with an air joint for introducing pressure air; one end of the water pipe is communicated with the hydraulic joint and is used for introducing pressure liquid;
the other end of water service pipe and the other end of breather pipe are the blind end, and all are located high temperature exhaust passage, the water service pipe is opened there are a plurality of apertures, the breather pipe is opened there are a plurality of apertures, the aperture of breather pipe sprays liquid smoke in to high temperature exhaust passage.
Further, a fastening member 5 (e.g., a fastening bolt) is included for fixedly connecting the mounting base 2 and the air vent base 4.
Further, the air conditioner also comprises a sealing gasket 3, wherein the sealing gasket 3 is arranged between the mounting seat 2 and the ventilation seat 4.
Further, the hydraulic joint comprises an adapter 7, a first lock nut 8 and a ball joint 9; the adapter is connected with the ventilating seat in a sealing mode, the ball joint is limited on the adapter by the first locking nut, and the ball joint is used for communicating with the water pipe and guiding water into the water pipe.
Furthermore, the pore diameters of the small holes of the vent pipe are matched with the pressure of the introduced gas, so that the gas and the liquid sprayed into the high-temperature exhaust channel are in an atomized state.
Further, the water pipe also comprises a water ball joint 12 which is arranged at one end of the water pipe.
Further, the gas joint comprises a ball joint 11 and a second locking nut 10 which confines the ball joint at the gas inlet of the breather seat.
The technical effects are as follows:
the mainstream exhaust temperature of an aero-engine combustion chamber can reach 1800 ℃ or even higher, ground test equipment needs to provide the working condition of the aero-engine combustion chamber, and for ensuring normal use of rear-end equipment at the temperature, the novel cooling structure and the single-channel water spray rod have the nozzle to block up the maintenance convenience, the water spray atomization effect is good, the rigidity is high, the deformation caused by heating is avoided, and the temperature control range is wide.
Drawings
FIG. 1 is a cross-sectional view of the working structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of a water pipe;
FIG. 4 is a schematic view of a breather tube and breather seat;
wherein: the high-temperature exhaust passage comprises a high-temperature exhaust passage 1, a mounting seat 2, a sealing gasket 3, a ventilation seat 4, a fastening piece 5, a water pipe 6, an adapter seat 7, a first locking nut 8, a ball joint 9, a second locking nut 10, a ball joint 11, a water ball joint 12, a ventilation pipe 13, a small hole 14 of the water pipe and a small hole 15 of the ventilation pipe.
Detailed Description
Embodiment 1, referring to fig. 1 to 4, a two-phase flow water spraying device for reducing the temperature of high-temperature exhaust gas is provided, which includes a mounting base 2, a ventilation base 4, a water pipe 6 and a ventilation pipe 13;
the installation seat is fixedly and hermetically embedded in the wall of the high-temperature exhaust channel, the ventilation seat is fixedly and hermetically connected with the installation seat, the ventilation seat and the installation seat are respectively provided with a central through hole, one end of the vent pipe is fixedly and hermetically inserted in the central through hole of the installation seat, the central through hole of the ventilation seat is communicated with the vent pipe, one end of the water pipe is fixedly and hermetically inserted in the central through hole of the ventilation seat, the vent pipe is sleeved outside the water pipe, and the water pipe and the vent pipe are coaxially arranged;
the air vent seat is provided with an air joint for introducing pressure air; one end of the water pipe is communicated with the hydraulic joint and is used for introducing pressure liquid;
the other end of water service pipe and the other end of breather pipe are the blind end, and all are located high temperature exhaust passage, the water service pipe is opened there are a plurality of apertures, the breather pipe is opened there are a plurality of apertures, the aperture of breather pipe sprays liquid smoke in to high temperature exhaust passage.
the installation seat is fixedly and hermetically embedded in the wall of the high-temperature exhaust channel, the ventilation seat is fixedly and hermetically connected with the installation seat, the ventilation seat and the installation seat are respectively provided with a central through hole, one end of the vent pipe is fixedly and hermetically inserted in the central through hole of the installation seat, the central through hole of the ventilation seat is communicated with the vent pipe, one end of the water pipe is fixedly and hermetically inserted in the central through hole of the ventilation seat, the vent pipe is sleeved outside the water pipe, and the water pipe and the vent pipe are coaxially arranged;
the air vent seat is provided with an air joint for introducing pressure air; one end of the water pipe is communicated with the hydraulic joint and is used for introducing pressure liquid;
the other end of water service pipe and the other end of breather pipe are the blind end, and all are located high temperature exhaust passage, the water service pipe is opened there are a plurality of apertures, the breather pipe is opened there are a plurality of apertures, the aperture of breather pipe sprays liquid smoke in to high temperature exhaust passage.
The air vent structure further comprises a fastening bolt 5 for fixedly connecting the mounting seat 2 with the air vent seat 4.
The air conditioner also comprises a sealing gasket 3, wherein the sealing gasket 3 is arranged between the mounting seat 2 and the ventilation seat 4.
The hydraulic joint comprises an adapter 7, a first locking nut 8 and a ball joint 9; the adapter is connected with the ventilating seat in a sealing mode, the ball joint is limited on the adapter by the first locking nut, and the ball joint is used for communicating with the water pipe and guiding water into the water pipe.
The apertures of the small holes of the vent pipe are matched with the pressure of the introduced gas, so that the gas and the liquid sprayed into the high-temperature exhaust channel are in an atomized state.
The water pipe is characterized by further comprising a water passing ball joint 12, wherein the water passing ball joint is arranged at one end of the water pipe.
The gas joint comprises a ball joint 11 and a second locking nut 10 which confines the ball joint at the gas inlet of the breather seat.
Claims (8)
1. A two-phase flow water jet apparatus for reducing the temperature of high temperature exhaust gas, characterized in that: comprises a mounting seat (2), a ventilation seat (4), a water pipe (6) and a ventilation pipe (13);
the installation seat is fixedly and hermetically embedded in the wall of the high-temperature exhaust channel, the ventilation seat is fixedly and hermetically connected with the installation seat, the ventilation seat and the installation seat are respectively provided with a central through hole, one end of the vent pipe is fixedly and hermetically inserted in the central through hole of the installation seat, the central through hole of the ventilation seat is communicated with the vent pipe, one end of the water pipe is fixedly and hermetically inserted in the central through hole of the ventilation seat, the vent pipe is sleeved outside the water pipe, and the water pipe and the vent pipe are coaxially arranged;
the air vent seat is provided with an air joint for introducing pressure air; one end of the water pipe is communicated with the hydraulic joint and is used for introducing pressure liquid;
the other end of water service pipe and the other end of breather pipe are the blind end, and all are located high temperature exhaust passage, the water service pipe is opened there are a plurality of apertures, the breather pipe is opened there are a plurality of apertures, the aperture of breather pipe sprays liquid smoke in to high temperature exhaust passage.
2. A two-phase flow waterjet apparatus for reducing the temperature of high temperature exhaust gases as claimed in claim 1 wherein: the air-permeable fixing device further comprises a fastening piece (5) which is used for fixedly connecting the mounting seat (2) with the air-permeable seat (4).
3. A two-phase flow waterjet apparatus for reducing the temperature of high temperature exhaust gases as claimed in claim 1 wherein: the air-permeable cover is characterized by further comprising a sealing gasket (3), wherein the sealing gasket (3) is arranged between the mounting seat (2) and the air-permeable seat (4).
4. A two-phase flow waterjet apparatus for reducing the temperature of high temperature exhaust gases as claimed in claim 1 wherein: the hydraulic joint comprises an adapter (7), a first locking nut (8) and a ball joint (9); the adapter is connected with the ventilating seat in a sealing mode, the ball joint is limited on the adapter by the first locking nut, and the ball joint is used for communicating with the water pipe and guiding water into the water pipe.
5. A two-phase flow waterjet apparatus for reducing the temperature of high temperature exhaust gases as claimed in claim 1 wherein: the apertures of the small holes of the vent pipe are matched with the pressure of the introduced gas, so that the gas and the liquid sprayed into the high-temperature exhaust channel are in an atomized state.
6. A two-phase flow waterjet apparatus for reducing the temperature of high temperature exhaust gases as claimed in claim 1 wherein: the water pipe is characterized by further comprising a water ball joint, and the water ball joint is arranged at one end of the water pipe.
7. A two-phase flow waterjet apparatus for reducing the temperature of high temperature exhaust gases as claimed in claim 1 wherein: the gas joint comprises a ball joint and a second locking nut (10) which limits the ball joint to the gas inlet of the venting seat.
8. A two-phase flow waterjet apparatus for reducing the temperature of high temperature exhaust gases as claimed in claim 2 wherein: the fastener (5) is a fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121427845.0U CN215744198U (en) | 2021-06-25 | 2021-06-25 | Two-phase flow water spraying device for reducing high-temperature exhaust temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121427845.0U CN215744198U (en) | 2021-06-25 | 2021-06-25 | Two-phase flow water spraying device for reducing high-temperature exhaust temperature |
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| CN215744198U true CN215744198U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121427845.0U Active CN215744198U (en) | 2021-06-25 | 2021-06-25 | Two-phase flow water spraying device for reducing high-temperature exhaust temperature |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486269A (en) * | 2022-04-15 | 2022-05-13 | 中国飞机强度研究所 | Engine driving temperature control system for aircraft testing laboratory and design method thereof |
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2021
- 2021-06-25 CN CN202121427845.0U patent/CN215744198U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486269A (en) * | 2022-04-15 | 2022-05-13 | 中国飞机强度研究所 | Engine driving temperature control system for aircraft testing laboratory and design method thereof |
| CN114486269B (en) * | 2022-04-15 | 2022-06-24 | 中国飞机强度研究所 | Engine driving temperature control system for aircraft testing laboratory and design method thereof |
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