CN109695784B - Nozzle throat section of cooling water tank insert - Google Patents
Nozzle throat section of cooling water tank insert Download PDFInfo
- Publication number
- CN109695784B CN109695784B CN201811543579.0A CN201811543579A CN109695784B CN 109695784 B CN109695784 B CN 109695784B CN 201811543579 A CN201811543579 A CN 201811543579A CN 109695784 B CN109695784 B CN 109695784B
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- China
- Prior art keywords
- water tank
- cooling water
- throat section
- cooling
- tank stop
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/006—Rigid pipes specially profiled
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/08—Influencing flow of fluids of jets leaving an orifice
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/70—Cooling of pipes or pipe systems
Abstract
The invention provides a nozzle throat section of a cooling water tank insert, and a stop block is embedded in a cooling water tank, so that the integral rigidity of the throat section can be enhanced, and the risk of instability of the throat section is reduced. The nozzle throat section comprises an inner cylinder and an outer cylinder: more than two axial cooling water tanks are circumferentially distributed on the outer circumferential surface of the inner cylinder body, and a water tank stop block is arranged in each cooling water tank; the cross section of the water tank stop block is T-shaped, the length of the water tank stop block is consistent with that of the cold water tank, the vertical part of the T-shaped structure is positioned in the cold water tank, and a space between the bottom of the vertical part and the inner bottom surface of the cold water tank is a cooling water channel. The butt joint surfaces of the adjacent water tank stop blocks, the contact surfaces of the outer circumferences of the ribs on the two sides of the water tank stop blocks and the contact surfaces of the water tank stop blocks and the outer barrel are welded together respectively, so that the inner barrel, the water tank stop blocks and the outer barrel are welded together, the spray pipe throat section with the structure can reduce the instability risk of the throat section, and the spray pipe throat section is suitable for the use requirement of high Mach number.
Description
Technical Field
The invention relates to a spray pipe structure, in particular to a spray pipe throat section structure of a water tank insert.
Background
In the earlier 4m bench design, a Ma6.5 nozzle design was required. The 4m test stand ma6.5 nozzle is very large in size, while the throat section of the ma6.5 nozzle is not only large in size but also very high in thermal load, which not only poses great challenges to structural design but also great difficulties in manufacturing.
Referring to the structure of the traditional Ma6.5 nozzle throat section, the traditional Ma6.5 nozzle throat section comprises a chromium-zirconium-copper lining and a stainless steel jacket, axial cooling water channels are distributed on the outer circumferential surface of the chromium-zirconium-copper lining along the circumferential direction, the stainless steel jacket is coaxially sleeved outside the chromium-zirconium-copper lining, and the chromium-zirconium-copper lining and the stainless steel jacket are connected in a diffusion welding mode, so that the structure is firstly considered to be adopted in the 4m test bed Ma6.5 nozzle throat section.
In the development process of the traditional high Mach number (Ma6 and above) nozzle throat section, in order to meet the requirements of strength and rigidity of a structure and heat exchange and manufacture, the total height of a general chromium-zirconium-copper inner cylinder body is L mm-5-8 mm, and meanwhile, the chromium-zirconium-copper material of the inner cylinder body needs to be welded with a stainless steel material of an outer sleeve by brazing or diffusion welding.
However, the diffusion-welded or brazed construction of the inner cylinder in the form of a thin wall also entails technical risks. Once a local area of a diffusion welding or brazing structure is not ideal in welding or welded, repair welding and repair cannot be carried out, when high-pressure cooling water is fed into a cooling water channel, the area which is not ideal in welding or welded cannot be stabilized (bulge), and the whole nozzle throat section is scrapped, so that great economic loss is brought to people, scientific research and production progress is seriously delayed, and therefore a new throat section structure is necessary to be researched for avoiding the technical risk.
Disclosure of Invention
In view of this, the invention provides a nozzle throat section of a cooling water tank insert, in which a stop block is embedded, so that the overall rigidity of the throat section can be enhanced, and the risk of instability of the throat section is reduced.
The nozzle throat section comprises an inner cylinder and an outer cylinder which are coaxially sleeved, more than two axial strip-shaped grooves are circumferentially distributed on the outer circumferential surface of the inner cylinder to serve as cooling water tanks, and water inlet channels and water outlet channels which are communicated with the cooling water tanks are arranged on flanges at two axial ends of the outer cylinder;
a water tank stop block is arranged in each cooling water tank; the cross section of the water tank stop block is T-shaped, the length of the water tank stop block is consistent with that of the cooling water tank, the vertical part of the T-shaped structure is positioned in the cooling water tank, and a space between the bottom of the vertical part and the inner bottom surface of the cooling water tank is a cooling water channel;
the inner barrel between two adjacent cooling water tanks is made to be a rib of the cooling water tank, and two steps at the joint of the horizontal part and the vertical part of the water tank stop block are respectively contacted with the outer circumferential surfaces of the ribs at two sides of the cooling water tank corresponding to the steps; the horizontal parts of the water tank stop blocks in the adjacent cooling water tanks are contacted, so that the water tank stop blocks are sequentially butted along the circumferential direction to form an annular structure, and the outer cylinder is coaxially sleeved outside the annular structure;
and the abutting surfaces of the adjacent water tank stop blocks, the contact surfaces of the water tank stop blocks and the outer circumferences of the ribs on the two sides of the water tank stop blocks and the contact surfaces of the water tank stop blocks and the outer barrel are respectively welded together, so that the inner barrel, the water tank stop blocks and the outer barrel are welded together.
Has the advantages that:
according to the invention, the water tank stop block is embedded in the cooling water tank, so that the overall rigidity of the throat section can be enhanced; meanwhile, during welding, the outer cylinder and the inner cylinder are respectively welded with the water tank stop block, so that the risk of instability of the throat section can be reduced, the throat section can meet the use requirement of high Mach number, the water flow speed in the cooling water channel can be controlled by adjusting the height of the water tank stop block,
drawings
FIG. 1 is a schematic axial cross-sectional view of a nozzle throat section of the present invention;
FIG. 2 is a view A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view (radial section) of the inner barrel of the nozzle throat section of the present invention;
FIG. 4 is a schematic view of a partial configuration of the nozzle throat section of the present invention.
Wherein: 1-inner cylinder, 2-outer cylinder, 3-connecting flange, 4-cooling water channel, 5-water tank stop block and 6-brazing seam
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The embodiment provides a nozzle throat section of a cooling water tank insert, and the nozzle throat section with the structure can meet the use requirement of high Mach number.
As shown in fig. 1-2, the throat section of the nozzle comprises an inner cylinder 1 and an outer cylinder 2 coaxially sleeved outside the inner cylinder 1, and two axial ends of the outer cylinder 2 are respectively provided with a connecting flange 3. The height (namely the wall thickness) of the inner cylinder body 1 is about 30mm, axial cooling water channels are distributed on the outer circumferential surface of the inner cylinder body 1 along the circumferential direction, and water inlet and outlet channels communicated with the cooling water channels are arranged on the connecting flange 3.
As shown in fig. 3-4, the outer wall surface of the inner cylinder 1 between two adjacent cooling water tanks is made to be the ribs of the cooling water tanks; a water tank stop 5 is placed in each cooling water tank. The cross section (radial section) of the water tank stop block 5 is T-shaped, the length of the water tank stop block is consistent with that of the cooling water tank, the vertical part of the T-shaped structure of the water tank stop block is positioned in the cooling water tank, the space between the bottom of the vertical part and the inner bottom surface of the cooling water tank is a cooling water channel 4, the height of the cooling water channel 4 can be adjusted by adjusting the height of the vertical part of the water tank stop block 5, and therefore the flow rate of water in the cooling water channel 4 is controlled.
The lower surfaces of the horizontal parts at the two ends of the water tank stop block 5 are respectively contacted with the outer circumferential surfaces of the inner barrels 1 corresponding to the two sides of the cooling water tank, namely, the steps at the joint of the horizontal part and the vertical part of the water tank stop block 5 are contacted with the ribs at the two sides of the cooling water tank. The horizontal parts of the water tank stop blocks 5 in the adjacent cooling water tanks are contacted, so that the water tank stop blocks 5 are sequentially butted along the circumferential direction to form an annular structure, and the outer cylinder body 2 is coaxially sleeved outside the annular structure.
Preferably, the length of the horizontal part of the water tank stop 5 is equal to the width a of the cooling water tank + the width b of the cooling water tank rib; and the length of the two ends of the horizontal part of the water tank stop block 5 is b/2.
Finally, brazing welding is adopted between the abutting surfaces of the adjacent water tank stoppers 5 (namely, between two end surfaces of the horizontal part of the water tank stopper 5 and the water tank stopper 5 abutted against the end surfaces), between the water tank stopper 5 and the outer circumferential surface (water tank rib) of the inner cylinder 1 in contact with the water tank stopper 5, and between the water tank stopper 5 and the contact surface of the outer cylinder 2 (namely, between the outer circumferential surface of the annular structure formed by the plurality of water tank stoppers 5 and the inner circumferential surface of the outer cylinder 1), so as to form a brazing seam 6, and thus the inner cylinder 1, the water tank stopper 5 and the outer cylinder 2 are welded together. The addition of the flume stop 5 may enhance the overall stiffness of the throat section, thereby reducing the risk of instability of the throat section.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A spray pipe throat section of a cooling water channel insert comprises an inner cylinder (1) and an outer cylinder (2) which are coaxially sleeved, wherein more than two axial strip-shaped grooves are circumferentially distributed on the outer circumferential surface of the inner cylinder (1) to serve as cooling water channels, and a water inlet channel and a water outlet channel which are communicated with the cooling water channels are arranged on flanges (3) at two axial ends of the outer cylinder (2); the method is characterized in that:
a water tank stop block (5) is arranged in each cooling water tank; the cross section of the water tank stop block (5) is T-shaped, the length of the water tank stop block is consistent with that of the cooling water tank, the vertical part of the T-shaped structure is positioned in the cooling water tank, and a space between the bottom of the vertical part and the inner bottom surface of the cooling water tank is a cooling water channel (4);
the inner barrel (1) between two adjacent cooling water tanks is made to be a rib of the cooling water tank, and two steps at the joint of the horizontal part and the vertical part of the water tank stop block (5) are respectively contacted with the outer circumferential surfaces of the ribs at two sides of the cooling water tank corresponding to the steps; horizontal parts of water tank stop blocks (5) in adjacent cooling water tanks are contacted, so that the water tank stop blocks (5) are sequentially butted along the circumferential direction to form an annular structure, and the outer cylinder (2) is coaxially sleeved outside the annular structure;
the butt joint surfaces of the adjacent water tank stop blocks (5), the contact surfaces of the water tank stop blocks (5) and the outer circumferences of the ribs on the two sides of the water tank stop blocks and the contact surfaces of the water tank stop blocks (5) and the outer barrel body (2) are welded together respectively, so that the inner barrel body (1), the water tank stop blocks (5) and the outer barrel body (2) are welded together.
2. The nozzle throat section of a cooling sink insert according to claim 1, wherein the length of the horizontal portion of the sink stop (5) is equal to the width of the cooling sink a + the width of the cooling sink ribs b; and the length of the two ends of the horizontal part of the water tank stop block extending out is b/2.
3. The nozzle throat section of a cooling sink insert according to claim 1 or 2, wherein the inner barrel (1) has a wall thickness of 30 mm.
4. The nozzle throat section of a cooling sink insert according to claim 1 or 2, wherein the height of the cooling water channel (4) is adjustable by adjusting the height of the vertical portion of the sink stop (5) to control the flow rate of water in the cooling water channel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543579.0A CN109695784B (en) | 2018-12-17 | 2018-12-17 | Nozzle throat section of cooling water tank insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543579.0A CN109695784B (en) | 2018-12-17 | 2018-12-17 | Nozzle throat section of cooling water tank insert |
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| Publication Number | Publication Date |
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| CN109695784A CN109695784A (en) | 2019-04-30 |
| CN109695784B true CN109695784B (en) | 2020-08-07 |
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| CN201811543579.0A Active CN109695784B (en) | 2018-12-17 | 2018-12-17 | Nozzle throat section of cooling water tank insert |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762305A (en) * | 2019-11-15 | 2020-02-07 | 中国空气动力研究与发展中心超高速空气动力研究所 | Water-cooling test flange for hypersonic-velocity low-density wind tunnel stabilization section |
| CN112727860B (en) * | 2020-12-22 | 2022-04-01 | 中国空气动力研究与发展中心超高速空气动力研究所 | Structure for high-Mach-number molded surface spray pipe water-cooling throat of hypersonic wind tunnel |
| CN112833259B (en) * | 2020-12-25 | 2022-10-28 | 北京动力机械研究所 | Sectional type spray pipe throat section |
| CN113787307B (en) * | 2021-09-09 | 2022-07-26 | 西安远航真空钎焊技术有限公司 | Machining method for workpiece of pipe expanding and contracting section |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09196807A (en) * | 1996-01-16 | 1997-07-31 | Mitsubishi Heavy Ind Ltd | Nozzle for shock tunnel |
| CN201470690U (en) * | 2009-08-04 | 2010-05-19 | 烟台开发区蓝鲸金属修复有限公司 | Coiling drum provided with tubular strengthening ribs and used for hot-coiling furnace |
| CN202330020U (en) * | 2011-09-16 | 2012-07-11 | 西安远航真空钎焊技术有限公司 | Throat section of hypersonic-speed engine test bed |
| CN102359800A (en) * | 2011-10-10 | 2012-02-22 | 苍南自动化仪表厂 | Locally-integrated butt-welding venturi tube |
| CN102950351B (en) * | 2012-11-02 | 2015-10-28 | 首都航天机械公司 | Hydrogen peroxide thrust chamber body portion diffusion brazing manufacture method |
| CN102998085B (en) * | 2012-12-31 | 2015-12-09 | 中国人民解放军国防科学技术大学 | Mixing jet tube runner wall defining method, mixing jet tube and mixed supersonic wind-tunnel |
| CN104949153B (en) * | 2014-03-31 | 2017-09-26 | 北京航天动力研究所 | A kind of the high compression combustion chamber coolant jacket import and export mix and its processing method |
| CN104406763B (en) * | 2014-10-17 | 2017-03-01 | 北京航天益森风洞工程技术有限公司 | nozzle throat section water-cooling structure |
| CN106604516B (en) * | 2014-11-11 | 2018-10-12 | 衢州昀睿工业设计有限公司 | The plasma pyrolysis water spray gun of microporous barrier cathode |
| CN104776973B (en) * | 2015-03-24 | 2017-06-30 | 中国科学院力学研究所 | A kind of cooling device and its building method for being applied to High Mach number nozzle throat |
| CN206029008U (en) * | 2016-08-17 | 2017-03-22 | 湖北三江航天红阳机电有限公司 | Spray tube throat auxiliary fixtures |
| CN206592223U (en) * | 2016-12-20 | 2017-10-27 | 江苏豪然喷射成形合金有限公司 | A kind of lightweight height is than strong engine jet pipe housing |
| CN108263638B (en) * | 2017-12-22 | 2021-02-05 | 中国航天空气动力技术研究院 | High-temperature low-consumption special-shaped spray pipe |
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| CN109695784A (en) | 2019-04-30 |
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