CN111174480A - Hail preparation device and method for hail swallowing test of aviation turbofan engine - Google Patents
Hail preparation device and method for hail swallowing test of aviation turbofan engine Download PDFInfo
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- CN111174480A CN111174480A CN202010008806.0A CN202010008806A CN111174480A CN 111174480 A CN111174480 A CN 111174480A CN 202010008806 A CN202010008806 A CN 202010008806A CN 111174480 A CN111174480 A CN 111174480A
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- Prior art keywords
- hail
- cavity
- hemispherical cavity
- preparation device
- turbofan engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/04—Producing ice by using stationary moulds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/22—Construction of moulds; Filling devices for moulds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
The application belongs to the field of hail swallowing tests of aircraft engines, and particularly relates to a hail preparation device and method for the hail swallowing tests of the aircraft turbofan engine. The device comprises: an upper hemisphere cavity (3) and a lower hemisphere cavity (4). A conical funnel structure (1) is arranged at the upper part of the upper hemispherical cavity (3), a medium injection port (6) is arranged at the lower end of the conical funnel structure (1), a hemispherical first cavity is arranged at the lower part of the upper hemispherical cavity (3), and the first cavity is communicated with the medium injection port (6); the upper portion of the lower hemisphere cavity (4) is provided with a hemispherical second cavity, and the lower hemisphere cavity (4) is connected with the upper hemisphere cavity (3) through threads. The hail preparation facilities is used in aviation turbofan engine hail swallowing experiment of this application, the hail qualification rate of making is high, and the appearance is pleasing to the eye, and the size is accurate, and density is up to standard, can satisfy the requirement of aviation turbofan engine hail swallowing experiment with the hail.
Description
Technical Field
The application belongs to the field of hail swallowing tests of aircraft engines, and particularly relates to a hail preparation device and method for the hail swallowing tests of the aircraft turbofan engine.
Background
The hail-swallowing test is one of special test projects specified by military specifications of aviation turbofan engines and requirements on civil aviation navigability, and aims to evaluate the service performance and hail impact resistance of the engines under the weather condition of simulating hail and verify the influence and the consequence of hail collision on the engines under the environment with possible hail-suppression. Military regulations and seaworthiness require that hail is spherical in shape, and a special device and a special method for hail preparation are applied before a test.
In the prior art, one method is a hail making device which is made of materials such as silica gel, hard plastic, resin, nylon and the like and has a structure of an upper hemispherical cavity and a lower hemispherical cavity in a buckling mode, and due to the fact that the hardness of the materials is insufficient, the upper hemispherical cavity and the lower hemispherical cavity are easily expanded by expansion force generated in the medium icing process, a spherical hail with a regular shape cannot be formed, an ice ring can be generated around the hail, and the appearance size of the hail cannot meet the test requirement; the other method is that the hail making device is manufactured by adopting a 3D printing technology, the manufacturing cost is high, and the economy is not good. Moreover, in the prior art, the hail prepared in the normal-pressure low-temperature environment by adopting municipal tap water, purified water and mineral water as media has higher density and cannot meet the test requirements. Therefore, the prior art scheme has the problems that the manufacturing cost of the hail making device is high, the hail made is not ideal in appearance size or density, and the requirements of an aviation turbofan engine hail swallowing test cannot be met.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The application aims to provide a hail preparation device and method for an aviation turbofan engine hail swallowing test, and aims to solve at least one problem in the prior art.
The technical scheme of the application is as follows:
the application provides a first aspect of aviation turbofan engine gulps hail experimental hail preparation facilities, includes:
the upper hemispherical cavity is provided with a conical funnel structure at the upper part, a medium injection port is arranged at the lower end of the conical funnel structure, a hemispherical first cavity is arranged at the lower part of the upper hemispherical cavity, and the first cavity is communicated with the medium injection port;
the lower hemispherical cavity is provided with a hemispherical second cavity at the upper part and is in threaded connection with the upper hemispherical cavity.
Optionally, the upper hemispherical cavity and the lower hemispherical cavity are both aluminum alloy parts.
Optionally, the upper hemispherical cavity and the lower hemispherical cavity are both cylinders, an internal thread is arranged on the upper hemispherical cavity, and an external thread is arranged on the lower hemispherical cavity.
Optionally, a groove is formed in the outer side of the first cavity of the upper hemispherical cavity along the circumferential direction, and a sealing boss matched with the groove is arranged on the lower hemispherical cavity.
Optionally, a first screwing structure is arranged on the outer side of the upper hemispherical cavity, and a second screwing structure is arranged on the outer side of the lower hemispherical cavity.
The second aspect of the present application provides a method for preparing hail for an aviation turbofan engine hail swallowing test, based on the hail preparing apparatus for an aviation turbofan engine hail swallowing test as described above, including:
step one, an upper hemispherical cavity and a lower hemispherical cavity of a hail preparation device are connected and combined in place through threads;
step two, preparing soda water for standby;
injecting the soda water into the hail preparation device through a medium injection port by using an injector;
fourthly, placing the hail preparation device filled with the medium in refrigeration equipment under a preset hail making condition to prepare hail;
and step five, taking the hail preparation device out of the refrigeration equipment after the preset freezing time, and opening the hail preparation device to take out the hail.
Optionally, the upper hemispherical cavity and the lower hemispherical cavity are both aluminum alloy parts.
Optionally, the upper hemispherical cavity and the lower hemispherical cavity are both cylinders, an internal thread is arranged on the upper hemispherical cavity, and an external thread is arranged on the lower hemispherical cavity.
Optionally, a groove is formed in the outer side of the first cavity of the upper hemispherical cavity of the hail preparation device along the circumferential direction, a sealing boss matched with the groove is arranged on the lower hemispherical cavity, and in the first step, when the upper hemispherical cavity is assembled with the lower hemispherical cavity, the sealing boss is installed in the groove in a matched mode to achieve sealing.
Optionally, a first screwing structure is arranged on the outer side of the upper hemispherical cavity of the hail preparation device, a second screwing structure is arranged on the outer side of the lower hemispherical cavity, and in the fifth step, the hail preparation device is opened through a wrench to take out the hail.
The invention has at least the following beneficial technical effects:
the hail preparation facilities is used in aviation turbofan engine hail swallowing experiment of this application, the hail qualification rate of making is high, and the appearance is pleasing to the eye, and the size is accurate, and density is up to standard, can satisfy the requirement of aviation turbofan engine hail swallowing experiment with the hail.
Drawings
FIG. 1 is a schematic view of an apparatus for producing hail for hail-swallowing test of an aero turbofan engine according to an embodiment of the present application.
Wherein:
1-a conical funnel structure; 2-a first wrenching structure; 3-upper hemisphere cavity; 4-lower hemisphere cavity; 5-a second wrenching structure; 6-media injection port; 7-sealing the boss; 8-external thread.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1.
The application provides in a first aspect an aviation turbofan engine gulps hail experimental hail preparation facilities with hail, includes: an upper hemispherical cavity 3 and a lower hemispherical cavity 4.
Specifically, the upper part of the upper hemispherical cavity 3 is provided with a conical funnel structure 1, which is convenient for injecting a medium into the device and discharging redundant medium in the spherical cavity in the hail making process, the lower end of the conical funnel structure 1 is provided with a medium injection port 6, the medium is injected into the device through the medium injection port, the lower part of the upper hemispherical cavity 3 is provided with a hemispherical first cavity, and the first cavity is communicated with the medium injection port 6; the hemispherical second cavity is opened on the upper portion of the lower hemispherical cavity 4, the two-part structure of the lower hemispherical cavity 4 and the upper hemispherical cavity 3 adopts a coaxial design, a smooth and complete spherical cavity can be formed inside the device after combination, and the lower hemispherical cavity 4 is in threaded connection with the upper hemispherical cavity 3. In this embodiment, episphere cavity 3 and lower hemisphere cavity 4 are the cylinder, are provided with the internal thread on the episphere cavity 3, are provided with external screw thread 8 on the lower hemisphere cavity 4, and the expansive force that the medium freezes to produce can be overcome completely to design screw-thread fastening structure, does not take place great relative displacement between the upper and lower hemisphere cavity of assurance device to guarantee the overall dimension of the hail of making, avoid the ice ring that produces around the hail.
In an embodiment of this application, upper hemisphere cavity 3 and lower hemisphere cavity 4 are the aluminum alloy finished piece, and this material machining performance is good, easily production, and the finished product precision is high, and weight is moderate, and the appearance is pleasing to the eye, and is difficult for rustting.
Advantageously, in this embodiment, a groove is circumferentially formed in the outer side of the first cavity of the upper hemispherical cavity 3, and the sealing boss 7 adapted to the groove is provided on the lower hemispherical cavity 4, so that a sealing structure is designed to achieve surface-to-surface sealing, thereby preventing a medium from leaking out of the spherical cavity, and avoiding the situation that a complete spherical hail cannot be formed due to excessive leakage of the medium.
Advantageously, in the present embodiment, the first screwing structure 2 is disposed outside the upper hemispherical cavity 3, and the second screwing structure 5 is disposed outside the lower hemispherical cavity 4, so as to use the wrench for assembling and separating the device.
The second aspect of the present application provides a hail preparation method for hail swallowing test of an aviation turbofan engine, which is based on the hail preparation device for hail swallowing test of an aviation turbofan engine, and includes:
step one, an upper hemispherical cavity 3 and a lower hemispherical cavity 4 of a hail preparation device are connected and combined in place through threads;
step two, preparing soda water for standby;
injecting the soda water into the hail preparation device through the medium injection port 6 by using an injector;
fourthly, placing the hail preparation device filled with the medium in refrigeration equipment under a preset hail making condition to prepare hail;
and step five, taking the hail preparation device out of the refrigeration equipment after the preset freezing time, and opening the hail preparation device to take out the hail.
Advantageously, in this embodiment, the upper hemispherical cavity 3 and the lower hemispherical cavity 4 are made of aluminum alloy.
Advantageously, in this embodiment, the upper hemispherical cavity 3 and the lower hemispherical cavity 4 are both cylinders, an internal thread is provided on the upper hemispherical cavity 3, and an external thread 8 is provided on the lower hemispherical cavity 4.
Advantageously, in this embodiment, a groove is circumferentially formed in the outer side of the first cavity of the upper hemispherical cavity 3 of the hail preparation device, and the lower hemispherical cavity 4 is provided with the sealing boss 7 adapted to the groove, in the first step, when the upper hemispherical cavity 3 and the lower hemispherical cavity 4 are assembled, the sealing boss 7 is installed in the groove in a matching manner to realize sealing.
Advantageously, in this embodiment, the first wrenching structure 2 is disposed outside the upper hemispherical cavity 3 of the hail preparation device, and the second wrenching structure 5 is disposed outside the lower hemispherical cavity 4, in step five, the hail preparation device is opened by a wrench to take out the hail.
The hail preparation method for the hail swallowing test of the aviation turbofan engine adopts the soda water as a hail making medium, and can enable parameters such as the density of the hail to meet the test requirements according to the specified preparation steps.
According to the hail preparation device and method for the hail swallowing test of the aviation turbofan engine, the manufactured hail is high in qualification rate, attractive in appearance, accurate in size and up to standard in density, and the requirement of the hail for the hail swallowing test of the aviation turbofan engine can be met; the hail making process is simple and easy to operate, the preparation efficiency is high, and the test period is greatly shortened.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A hail preparation facilities for aviation turbofan engine gulps down hail experiment, its characterized in that includes:
the device comprises an upper hemispherical cavity (3), wherein a conical funnel structure (1) is arranged at the upper part of the upper hemispherical cavity (3), a medium injection port (6) is arranged at the lower end of the conical funnel structure (1), a hemispherical first cavity is arranged at the lower part of the upper hemispherical cavity (3), and the first cavity is communicated with the medium injection port (6);
the lower hemispherical cavity (4), the hemispherical second cavity is seted up on the upper portion of lower hemispherical cavity (4), lower hemispherical cavity (4) with upper hemispherical cavity (3) pass through threaded connection.
2. The hail preparation device for hail test of aviation turbofan engine according to claim 1, wherein the upper hemispherical cavity (3) and the lower hemispherical cavity (4) are made of aluminum alloy.
3. The hail preparation device for hail test of aviation turbofan engine according to claim 1, wherein the upper hemisphere cavity (3) and the lower hemisphere cavity (4) are both cylinders, the upper hemisphere cavity (3) is provided with internal threads, and the lower hemisphere cavity (4) is provided with external threads (8).
4. The hail preparation device for the hail test of the aviation turbofan engine according to claim 1, wherein a groove is formed on the outer side of the first cavity of the upper hemispherical cavity (3) along the circumferential direction, and a sealing boss (7) matched with the groove is arranged on the lower hemispherical cavity (4).
5. The hail preparation device for the hail test of the aviation turbofan engine according to claim 1, wherein a first wrenching structure (2) is arranged outside the upper hemispherical cavity (3), and a second wrenching structure (5) is arranged outside the lower hemispherical cavity (4).
6. A hail preparation method for hail test of an aviation turbofan engine, based on the hail preparation device for hail test of the aviation turbofan engine according to any one of claims 1 to 5, comprising:
step one, an upper hemispherical cavity (3) and a lower hemispherical cavity (4) of a hail preparation device are connected and combined in place through threads;
step two, preparing soda water for standby;
injecting the soda water into the hail preparation device through a medium injection port (6) by using an injector;
fourthly, placing the hail preparation device filled with the medium in refrigeration equipment under a preset hail making condition to prepare hail;
and step five, taking the hail preparation device out of the refrigeration equipment after the preset freezing time, and opening the hail preparation device to take out the hail.
7. The hail production method for the hail test of the aviation turbofan engine according to claim 5, wherein the upper hemispherical cavity (3) and the lower hemispherical cavity (4) are made of aluminum alloy.
8. The hail production method for the hail test of the aviation turbofan engine according to claim 5, wherein the upper hemispherical cavity (3) and the lower hemispherical cavity (4) are both cylinders, the upper hemispherical cavity (3) is provided with internal threads, and the lower hemispherical cavity (4) is provided with external threads (8).
9. The hail preparation method for the hail test of the aviation turbofan engine according to claim 5, wherein a groove is circumferentially formed on the outer side of the first cavity of the upper hemispherical cavity (3) of the hail preparation device, a sealing boss (7) matched with the groove is arranged on the lower hemispherical cavity (4), and in the first step, when the upper hemispherical cavity (3) and the lower hemispherical cavity (4) are assembled, the sealing boss (7) is matched and installed in the groove to realize sealing.
10. The hail preparation method for hail test of aviation turbofan engine according to claim 5, wherein a first wrenching structure (2) is disposed outside the upper hemispherical cavity (3) of the hail preparation device, a second wrenching structure (5) is disposed outside the lower hemispherical cavity (4), and in step five, the hail preparation device is opened by a wrench to take out hail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010008806.0A CN111174480A (en) | 2020-01-06 | 2020-01-06 | Hail preparation device and method for hail swallowing test of aviation turbofan engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010008806.0A CN111174480A (en) | 2020-01-06 | 2020-01-06 | Hail preparation device and method for hail swallowing test of aviation turbofan engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111174480A true CN111174480A (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010008806.0A Pending CN111174480A (en) | 2020-01-06 | 2020-01-06 | Hail preparation device and method for hail swallowing test of aviation turbofan engine |
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| CN (1) | CN111174480A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114812029A (en) * | 2022-04-14 | 2022-07-29 | 中国航发沈阳发动机研究所 | Borneol preparation device and method for aviation turbofan engine borneol swallowing test |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4244470A (en) * | 1979-08-06 | 1981-01-13 | Howard Johnson Company | Individual ice cream dispensing receptacle |
| JPS5949856U (en) * | 1982-09-24 | 1984-04-02 | 近藤 隆司 | Transparent spherical ice ice making device |
| CN1455856A (en) * | 2000-09-01 | 2003-11-12 | 素村胜三 | Method and apparatus for producing stereoscopic ice of transparent sphere or the like |
| FR3005349A1 (en) * | 2013-05-06 | 2014-11-07 | Meyer Jeremie Paul | SPHERICAL GLACON MOLD |
| CN105546898A (en) * | 2016-01-13 | 2016-05-04 | 中国航空动力机械研究所 | Ice making mold of hails for ice swallowing test of aircraft engine and production method |
| CN206399066U (en) * | 2017-01-04 | 2017-08-11 | 中国建材检验认证集团股份有限公司 | Hail mould for ground photovoltaic module hail testing inspection |
-
2020
- 2020-01-06 CN CN202010008806.0A patent/CN111174480A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4244470A (en) * | 1979-08-06 | 1981-01-13 | Howard Johnson Company | Individual ice cream dispensing receptacle |
| JPS5949856U (en) * | 1982-09-24 | 1984-04-02 | 近藤 隆司 | Transparent spherical ice ice making device |
| CN1455856A (en) * | 2000-09-01 | 2003-11-12 | 素村胜三 | Method and apparatus for producing stereoscopic ice of transparent sphere or the like |
| FR3005349A1 (en) * | 2013-05-06 | 2014-11-07 | Meyer Jeremie Paul | SPHERICAL GLACON MOLD |
| CN105546898A (en) * | 2016-01-13 | 2016-05-04 | 中国航空动力机械研究所 | Ice making mold of hails for ice swallowing test of aircraft engine and production method |
| CN206399066U (en) * | 2017-01-04 | 2017-08-11 | 中国建材检验认证集团股份有限公司 | Hail mould for ground photovoltaic module hail testing inspection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114812029A (en) * | 2022-04-14 | 2022-07-29 | 中国航发沈阳发动机研究所 | Borneol preparation device and method for aviation turbofan engine borneol swallowing test |
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Application publication date: 20200519 |