CN111997787A - Self-protection fluid director - Google Patents
Self-protection fluid director Download PDFInfo
- Publication number
- CN111997787A CN111997787A CN202010917509.8A CN202010917509A CN111997787A CN 111997787 A CN111997787 A CN 111997787A CN 202010917509 A CN202010917509 A CN 202010917509A CN 111997787 A CN111997787 A CN 111997787A
- Authority
- CN
- China
- Prior art keywords
- water
- panel
- metal
- self
- water outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/97—Rocket nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/97—Rocket nozzles
- F02K9/972—Fluid cooling arrangements for nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses a self-protection fluid director, which comprises a metal frame and a panel, wherein the metal frame is provided with a fluid guide profile, and the panel covers the fluid guide profile; the method is characterized in that: be equipped with water tank and water pump in the metal crate, be equipped with a plurality of apopores on the panel, water pump water inlet and water tank intercommunication, a plurality of apopores respectively through the pipeline with water pump delivery port intercommunication. The invention not only can effectively reduce the temperature of the rocket wake flow scouring flow guide surface, reduce the ablation effect of the wake flow temperature on the nonmetal protective panel, but also can effectively relieve the impact damage of granular airflow residues on the nonmetal protective panel.
Description
Technical Field
The invention belongs to the technical field of fluid directors, and particularly relates to a fluid director with a self-protection characteristic.
Background
When the rocket is launched, high-temperature and high-speed airflow ejected from a nozzle at the tail part of the rocket can affect various peripheral devices below the rocket, and when the solid rocket is ignited for launching, solid particles such as gunpowder are also mixed in the airflow, and the destructive power of the airflow at the tail part of the rocket engine is further increased through acceleration of the airflow. To protect these devices from damage, deflectors are required to direct the jet of air generated by the rocket motor in a given direction
The deflector generally comprises a metal body for supporting and a high-temperature-resistant non-metal protective panel, which are fastened together mainly by bonding. The nonmetal protective panel is a part directly bearing tail airflow, is generally made of composite materials and can bear higher temperature, but the strength of the nonmetal protective panel is poorer than that of steel, so that the nonmetal protective panel is frequently damaged under the conditions of high-temperature and high-speed airflow scouring and gunpowder particle impact, and the nonmetal protective panel is not favorable for the repeated use of the fluid director. In severe cases, rocket wakes can puncture the non-metal protective panel and the metal panel, causing the overall damage and failure of the fluid director.
Disclosure of Invention
In view of the problems in the prior art, an object of the present invention is to provide a flow guide that pumps water on a flow guide profile to form a water protective layer to protect the non-metal protective panel from the self-protection characteristic.
In order to achieve the purpose, the self-protection fluid director comprises a metal frame and a panel, wherein the metal frame is provided with a fluid guide profile, and the panel covers the fluid guide profile; the method is characterized in that: be equipped with water tank and water pump in the metal crate, be equipped with a plurality of apopores on the panel, water pump water inlet and water tank intercommunication, a plurality of apopores respectively through the pipeline with water pump delivery port intercommunication.
Preferably, a plurality of the water outlet holes are uniformly distributed along the flow guide profile, or are arranged according to an air flow temperature field and a pressure field obtained by tests or simulation.
Preferably, the included angle between the axis of the water outlet hole and the tangential direction of the orifice position of the water outlet hole is an acute angle, and the water outlet direction of the water outlet hole is the same as the flow direction of the air flow.
Further preferably, the included angle between the axis of the water outlet hole and the tangential direction of the position of the water outlet hole is not more than 30 degrees.
Preferably, a water separator is arranged between the water outlet hole and the water pump.
Further preferably, the inlet drift diameter of the water separator is larger than the outlet drift diameter.
Preferably, a metal pipe is arranged in the water outlet hole, and the outer wall of the metal pipe is fixed with the panel in a sealing manner; the end surface of the water outlet of the metal pipe is positioned in the water outlet hole.
Preferably, the water tank is formed by sealing a bottom surface and an outer side surface of the metal frame.
Preferably, the panels comprise a non-metallic panel and a metallic panel located between the non-metallic panel and the metallic frame.
The invention has the beneficial effects that:
before the rocket engine is ignited, water is sprayed in advance to form a liquid protective layer, and the effect of pre-protecting the non-metal protective panel on the surface of the fluid director is achieved.
After the rocket engine is ignited, the tail part of the rocket engine is gasified by high temperature of the tail part of the rocket engine to water sprayed out of the metal pipe to form a water vapor protective layer, so that the direct ablation of the wake flow to the non-metal protective layer is reduced, and the impact damage of granular residues is relieved.
When the rocket rises, the wake scouring is gradually reduced to zero, namely after diversion is finished, the sprayed water can also be used for quickly cooling the fluid director, and the damage effect of residual high temperature on the fluid director is reduced.
The metal pipe is embedded into the panel layer (comprising the nonmetal protective panel and the metal panel), but the airflow guiding characteristic of the flow guiding surface is not damaged, and the reinforcement effect of the ribs is achieved in the nonmetal protective panel layer.
The orientation of the metal tube has specific requirements: downstream, small acute angle.
The water pump and the flow divider and the metal pipe are connected by woven metal hoses, so that the installation and the maintenance are convenient.
The semi-closed box body formed by the triangular holes on the bottom surface of the metal body of the closed fluid director and the outer side supporting plate is welded, so that the strength and the overall stability of the metal body are also improved.
Inside the semi-closed box, form effectual water storage space, need not to prepare in addition the water source.
After water is stored in the semi-closed box body, the vibration and elastic deformation of the fluid director caused by air flow impact can be absorbed and dissipated by the water in the semi-closed box body, and the stability of the fluid director structure is further enhanced.
The invention not only can effectively reduce the temperature of the rocket wake flow scouring flow guide surface, reduce the ablation effect of the wake flow temperature on the nonmetal protective panel, but also can effectively relieve the impact damage of granular airflow residues on the nonmetal protective panel.
Drawings
FIG. 1 is a schematic perspective view of a metal frame for a deflector
FIG. 2 is a schematic cross-sectional view of a flow director
FIG. 3 is a schematic perspective view of the present invention
FIG. 4 is a side view schematic of the present invention
FIG. 5 is an enlarged schematic view at A in FIG. 4
FIG. 6 is a schematic view of the structure of the metal tube of the present invention
FIG. 7 is a schematic view of the installation and connection structure of the water knockout vessel of the present invention
FIG. 8 is an enlarged schematic view at B in FIG. 7
FIG. 9 is a schematic view of the mounting and connection structure of the water pump of the present invention
FIG. 10 is a schematic perspective view of the present invention
In the figure: the water distributor comprises a metal frame 1, a non-metal panel 2, a metal panel 3, a water outlet hole 4, a metal pipe 5, a water distributor 6, a woven metal hose 7, a bottom plate 8, a water pump 9, a side plate 10 and a water injection hole 11; wherein: big triangular support plate 1.1, crossbeam 1.2, transverse reinforcing plate 1.3, tip cone 1.4, big triangular hole 1.5 and loose joint 5.1
Detailed Description
The technical solutions of the present invention (including the preferred ones) are described in further detail below by way of fig. 1 to 10 and enumerating some alternative embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
As shown in fig. 1 and 2, the general configuration of the flow director: a metal frame 1 and a non-metal panel 2. The metal frame 1 of the fluid director is in the form of a plate shell, and a metal panel 3 is arranged between the metal frame 1 and the non-metal panel 2. The metal frame 1 is mainly formed by welding metal plates such as a longitudinal large triangular support plate 1.1, a cross beam 1.2, a transverse reinforcing plate 1.3, a tip cone 1.4 and the like. The metal panel 3 is attached to the metal frame 2 and welded to the metal frame 2 to form an integral structure. The non-metal panel 1 is formed by compression molding, can be integrally formed, and can also be formed in sections so as to save cost.
As shown in fig. 3, a plurality of coaxial through holes, that is, water outlet holes 4, are formed in the metal panel 3 and the non-metal panel 2, and the positions of the through holes can be uniformly distributed along the flow guide profile, and can also be non-uniformly distributed according to an airflow temperature field and a pressure field obtained by a test or simulation.
As shown in fig. 4 and 5, the angle between the axis of the water outlet hole 4 and the tangential direction of the opening position of the water outlet hole 4 is an acute angle, and the water outlet direction of the water outlet hole 4 is the same as the flow direction of the air flow, that is, the direction of the hole (the direction from the inside to the outside of the metal frame) is the same as the flow direction of the air flow. Preferably, 0 < alpha.ltoreq.30.
As shown in fig. 6, the view of fig. 6 is added to that of fig. 5, a metal pipe 5 is installed in the water outlet hole 3 and the through hole, and the metal pipe 5 is adhered and fixed to the non-metal panel 2 and the metal panel 3 by high-strength glue. The outer end of the metal pipe 5 is not exposed out of the surface of the nonmetal panel 2, the inner end is a movable joint 5.1, and the movable joint 5.1 is a threaded joint or a quick connector.
As shown in fig. 7 and 8, a plurality of water distributors 6 are mounted on a large triangular support plate 1.1 in a metal frame 1, each water distributor 6 is a container and is provided with a plurality of water inlets and water outlets, the water outlets and the water inlets are all loose joints (threaded joints or quick joints), and the diameter of the inlet is larger than that of the outlet to dredge the channels, so that the water outlet pressure is increased. The water in the water distributor 6 can be conveyed to the outer surface of the fluid director by connecting the water outlet joint of the water distributor 6 with the loose joint 5.1 embedded in the inner side of the metal pipe 5 between the two layers of panels of the fluid director through the woven metal hose 7.
As shown in fig. 9, a bottom plate 8 is provided on the ground of the metal frame 1, in this embodiment, the bottom surface of the closed fluid director is welded with a plate to form a closed bottom surface, and one or more high-pressure high-flow water pumps 9 are installed on the newly added bottom plate 8 inside the metal frame 1. The water outlet of the water pump 9 is connected to the inlet joint of the water separator 6 through a woven metal pipe 7.
As shown in fig. 10, side plates 10 are provided on both sides of the metal frame 1, and in this embodiment, the large triangular holes 1.5 of the two outer side support plates of the deflector are welded and sealed by plates to form a semi-closed box body, thus forming the water tank. A water injection hole 11 can be formed in the side surface of the tip cone 1.4 of the metal frame 1, and water is injected into the box body through the water injection hole 11.
The working principle of the invention is as follows:
and starting the water pump several seconds before the rocket engine is started, wherein the water pump pumps the water in the semi-closed box body to the water distributor, and sprays water to the surface of the flow guide profile of the flow guide device through the water distributor and a connecting pipeline to form an initial liquid protective layer.
After the rocket engine is started, the high-temperature airflow at the tail part of the rocket engine quickly vaporizes the water sprayed from the water pipe to form water vapor, and the high-pressure characteristic of the airflow at the tail part of the rocket can laminate the water vapor on the flow guide surface of the flow guider to form a gas protective layer which becomes an attachment layer with the protective characteristic along with the flowing of the airflow. The formation of the gas protection layer can effectively reduce the temperature of the rocket wake flow scouring flow guide surface, reduce the ablation effect of the wake flow temperature on the nonmetal protection panel, and effectively relieve the impact damage of the granular airflow residues on the nonmetal protection panel.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and any modification, combination, replacement, or improvement made within the spirit and principle of the present invention is included in the scope of the present invention.
Claims (9)
1. A self-protection fluid director comprises a metal frame and a panel, wherein the metal frame is provided with a fluid guide profile, and the panel covers the fluid guide profile; the method is characterized in that: be equipped with water tank and water pump in the metal crate, be equipped with a plurality of apopores on the panel, water pump water inlet and water tank intercommunication, a plurality of apopores respectively through the pipeline with water pump delivery port intercommunication.
Theoretically, only water can be taken. The size and the position of the water tank can be determined according to the form of the left and right parts. The water separator belongs to the optimization of the scheme and is embodied from the inside of the slave. Not necessarily in the exclusive right.
2. A deflector of self-protecting nature as claimed in claim 1, wherein: the water outlet holes are uniformly distributed along the flow guide molded surface, or are arranged according to an air flow temperature field and a pressure field obtained by tests or simulation.
3. A deflector of self-protecting nature as claimed in claim 1 or 2, wherein: the axis of the water outlet hole and the included angle of the tangential direction of the orifice position of the water outlet hole are acute angles, and the water outlet direction of the water outlet hole is the same as the flow direction of the air flow.
4. A deflector of self-protecting nature as claimed in claim 3, wherein: the included angle between the axis of the water outlet hole and the tangential direction of the position of the hole orifice of the water outlet hole is not more than 30 degrees.
5. A deflector of self-protecting nature as claimed in claim 1 or 2 or 4, wherein: and a water separator is arranged between the water outlet hole and the water pump.
6. A deflector of self-protecting nature as claimed in claim 5, wherein: the inlet drift diameter of the water separator is larger than the outlet drift diameter.
7. A deflector of self-protecting nature as claimed in claim 5, wherein: a metal pipe is arranged in the water outlet hole, and the outer wall of the metal pipe is fixed with the panel in a sealing way; the end surface of the water outlet of the metal pipe is positioned in the water outlet hole.
8. A deflector of self-protecting nature as claimed in claim 1, wherein: the water tank is formed by sealing the bottom surface and the outer side surface of the metal frame.
9. A deflector of self-protecting nature as claimed in claim 1, wherein: the panel comprises a non-metal panel and a metal panel positioned between the non-metal panel and the metal frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010917509.8A CN111997787A (en) | 2020-09-03 | 2020-09-03 | Self-protection fluid director |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010917509.8A CN111997787A (en) | 2020-09-03 | 2020-09-03 | Self-protection fluid director |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111997787A true CN111997787A (en) | 2020-11-27 |
Family
ID=73468251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010917509.8A Pending CN111997787A (en) | 2020-09-03 | 2020-09-03 | Self-protection fluid director |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111997787A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739632A (en) * | 2021-09-23 | 2021-12-03 | 湖北三江航天江北机械工程有限公司 | Box type transmitting flow guide device |
| CN114459287A (en) * | 2021-08-30 | 2022-05-10 | 北京天兵科技有限公司 | Ground launching system and method for medium-sized liquid carrier rocket |
| CN115183628A (en) * | 2022-08-11 | 2022-10-14 | 北京航天发射技术研究所 | Flow guiding device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090320972A1 (en) * | 2008-06-26 | 2009-12-31 | Morganti Richard J | Method for tempering an aluminum alloy |
| CN103090723A (en) * | 2011-10-27 | 2013-05-08 | 北京航天发射技术研究所 | Water injection, cooling and denoising system for rocket launching |
| CN103105095A (en) * | 2011-11-10 | 2013-05-15 | 北京航天发射技术研究所 | Rocket silo and construction method thereof |
| CN103542772A (en) * | 2013-10-23 | 2014-01-29 | 北京航天发射技术研究所 | Thermal protection method for launch pad |
| CN103542771A (en) * | 2012-07-10 | 2014-01-29 | 北京航天发射技术研究所 | Protection type cantilever launching platform with built-in water channel and manufacturing method thereof |
| US20190145350A1 (en) * | 2016-06-21 | 2019-05-16 | United Technologies Corporation | Liquid propellant rocket engine with passive condensate cooling |
| CN110131076A (en) * | 2019-04-23 | 2019-08-16 | 湖北三江航天江北机械工程有限公司 | Air deflector modularization forming method |
-
2020
- 2020-09-03 CN CN202010917509.8A patent/CN111997787A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090320972A1 (en) * | 2008-06-26 | 2009-12-31 | Morganti Richard J | Method for tempering an aluminum alloy |
| CN103090723A (en) * | 2011-10-27 | 2013-05-08 | 北京航天发射技术研究所 | Water injection, cooling and denoising system for rocket launching |
| CN103105095A (en) * | 2011-11-10 | 2013-05-15 | 北京航天发射技术研究所 | Rocket silo and construction method thereof |
| CN103542771A (en) * | 2012-07-10 | 2014-01-29 | 北京航天发射技术研究所 | Protection type cantilever launching platform with built-in water channel and manufacturing method thereof |
| CN103542772A (en) * | 2013-10-23 | 2014-01-29 | 北京航天发射技术研究所 | Thermal protection method for launch pad |
| US20190145350A1 (en) * | 2016-06-21 | 2019-05-16 | United Technologies Corporation | Liquid propellant rocket engine with passive condensate cooling |
| CN110131076A (en) * | 2019-04-23 | 2019-08-16 | 湖北三江航天江北机械工程有限公司 | Air deflector modularization forming method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459287A (en) * | 2021-08-30 | 2022-05-10 | 北京天兵科技有限公司 | Ground launching system and method for medium-sized liquid carrier rocket |
| CN113739632A (en) * | 2021-09-23 | 2021-12-03 | 湖北三江航天江北机械工程有限公司 | Box type transmitting flow guide device |
| CN113739632B (en) * | 2021-09-23 | 2023-01-10 | 湖北三江航天江北机械工程有限公司 | Box type transmitting flow guide device |
| CN115183628A (en) * | 2022-08-11 | 2022-10-14 | 北京航天发射技术研究所 | Flow guiding device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111997787A (en) | Self-protection fluid director | |
| CN110337562A (en) | Method for filling gas high pressure accumulator | |
| KR20190099315A (en) | Improved antistatic pressure tank | |
| US7458618B2 (en) | Fixed flange spray deflector | |
| CN108945315B (en) | L NG ship board side water curtain protection device | |
| US20110056525A1 (en) | Device and method for deburring and/or cleaning a work piece dipped in a fluid medium | |
| CN102829001A (en) | Pre-pressurizing jet pump | |
| CN105381559A (en) | Water seal type explosion prevention device | |
| CN217382162U (en) | Weldable glue injection forming leaking stoppage hoop for leaking stoppage of large-diameter steel pipe under pressure | |
| CN216046001U (en) | Novel reliable and stable valve connector | |
| CN115609492A (en) | Air-abrasive-water composite submerged jet nozzle, system and method | |
| CN212631523U (en) | Fire control sandblast barrel | |
| CN212297990U (en) | Anti-leakage metal hose with micro-pressure corrosion prevention and end part armoring functions | |
| KR102641247B1 (en) | fuel tank | |
| CN210484999U (en) | Flow guiding device | |
| CN112879112A (en) | Fluid reinforcing device | |
| US11691751B2 (en) | Accumulator on a fuel line of an aircraft | |
| CN206897685U (en) | A kind of ultrahigh frequency speed fluidic oxygen gun | |
| CN206694693U (en) | Portable pipeline safeguards Special connecting device | |
| CN208223271U (en) | Handle the device of air-cooled pipe plug leakage | |
| CN105332925A (en) | Jet flow water guiding device | |
| CN201211405Y (en) | Light and freight double-purpose concept fire-fighting truck | |
| JP2003267069A (en) | Fuel tank structure | |
| CN113623088B (en) | Non-straight-through type composite pipeline of small solid rocket engine | |
| CN212237842U (en) | Novel air duct of air-assisted sprayer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201127 |
|
| RJ01 | Rejection of invention patent application after publication |