CN216246491U - Small-size deicing atmospheric data probe that prevents - Google Patents

Abstract

The utility model discloses a small-sized anti-icing and deicing atmospheric data probe, which comprises a shell, wherein the front part of the shell is provided with a total pressure port, the upper side of the middle front part of the shell is provided with an upper pressure hole, the lower side of the middle front part of the shell is provided with a lower pressure hole, an upper pressure pipe, a total pressure pipe, a lower pressure pipe and a static pressure pipe are embedded in the shell, and the upper pressure pipe, the total pressure pipe, the lower pressure pipe and the static pressure pipe all extend out of the tail part of the shell to be connected with corresponding sensors; the upper pressurizing pipe is communicated with an upper pressurizing hole arranged on the upper surface of the shell; the total pressure pipe is communicated with the total pressure port; the lower pressure increasing pipe is communicated with a lower pressure hole arranged on the lower surface of the shell; the static pressure pipe is communicated with a static pressure hole arranged on the shell; the inner wall of the shell is also embedded with a spiral heating wire. The utility model successfully embeds the heating wire into the shell by utilizing a metal additive manufacturing technology, further optimizes the probe structure, avoids the influence of the heating wire on the gas circuit pipeline in the probe, reduces the volume of the probe, improves the insulativity and the deicing efficiency of the probe, and is suitable for wide popularization and application.

Description

Small-size deicing atmospheric data probe that prevents

Technical Field

The utility model relates to the technical field of aviation and aerospace equipment, in particular to a small-sized anti-icing and deicing atmospheric data probe.

Background

The atmospheric data system provides a large amount of accurate information, such as barometric altitude, rising speed, corrected airspeed, vacuum speed, Mach number, angle of attack, sideslip angle, atmospheric static temperature and large air density ratio, is of great importance to ensuring flight safety, and is also information required by a plurality of key avionic subsystems for ensuring that pilots execute flight tasks. Thus, on all modern civil and military aircraft, the air data system itself is one of the key avionics systems, and is also an indispensable core element of other avionics subsystems.

The air data probe is an extremely important core component of an air data system. The existing pressure sensing type atmospheric data probe usually has total pressure, static pressure, upper surface pressure and lower surface pressure sensing functions, however, to realize the functions, devices such as a total pressure, static pressure, upper surface pressure, lower surface pressure pipeline, a cavity isolation cover plate and the like need to be arranged in the probe, and because the diameter of the probe is small, the space for arranging the devices is very narrow, and a special welding process is often adopted. In order to achieve the function of preventing and removing ice, a heater is required to be arranged, so that the originally tense space is tenser, and even a special process of welding the heater to the wall is adopted, the phenomena of heater cracking, poor probe insulation, low yield and the like are easily caused. Meanwhile, the heater has a certain volume, so that the size, the pneumatic characteristics and the like of the gas circuit pipeline and the cavity of the probe can be adversely affected, and the influence of larger volume, poorer pneumatic characteristics and the like of the probe is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a small-sized anti-icing and deicing air data probe which is good in probe insulation, high in qualification rate, small in probe volume and good in pneumatic characteristic.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a small-sized anti-icing and deicing atmospheric data probe comprises a shell, wherein the front part of the shell is provided with a total pressure port, the upper side of the middle front part of the shell is provided with an upper pressure hole, the lower side of the middle front part of the shell is provided with a lower pressure hole, an upper pressure pipe, a total pressure pipe, a lower pressure pipe and a static pressure pipe are embedded in the shell, and the upper pressure pipe, the total pressure pipe, the lower pressure pipe and the static pressure pipe all extend out of the tail part of the shell to be connected with corresponding sensors; the upper pressurizing pipe is communicated with an upper pressurizing hole arranged on the upper surface of the shell; the total pressure pipe is communicated with the total pressure port; the lower pressure increasing pipe is communicated with a lower pressure hole arranged on the lower surface of the shell; the static pressure pipe is communicated with a static pressure hole arranged in the shell; the inner wall of the shell is also embedded with a spiral heating wire.

The working principle of the technical scheme is that the heater strip is embedded into the shell, so that the internal volume of the probe can be increased, the overall volume of the probe is reduced in a phase-changing manner, the pneumatic characteristic of the probe cannot be influenced, the problem of welding quality of the heater strip in a narrow space is solved, the insulativity and the qualification rate of the probe are improved, the heater strip can be closer to a deicing position, the deicing efficiency is improved, and the heater strip is arranged in the shell and is not easy to accumulate dust to influence the heat release of the heating wire; meanwhile, the inner structure of the probe realizes the feeling of total pressure, static pressure, upper surface pressure and lower surface pressure, realizes the dewatering and dedusting functions of the total pressure and the static pressure of the probe, has the deicing function of the probe, and has the advantages of complete functions, small volume, good insulativity, high deicing efficiency and easiness in manufacturing.

In order to better realize the method of the utility model, further, a first seal plug, a second seal plug and a third seal plug are sequentially arranged in the shell from front to back; be provided with in the first shutoff and press the chamber, push down the chamber, go up pressure chamber lower part intercommunication and go up the pressure boost pipe, and go up pressure chamber lateral wall and pass through pressure hole and last pressure hole intercommunication outside, push down pressure chamber lower part intercommunication and push down pressure boost pipe, and push down pressure chamber lateral wall and pass through pressure hole and push down the hole intercommunication outside down.

In order to better implement the method of the utility model, further, a total pressure hole is further arranged in the first seal plug, and the total pressure pipe penetrates through the second seal plug and the third seal plug and is communicated with the total pressure port through the total pressure hole.

In order to better realize the method of the utility model, further, the space of the shell between the second seal plug and the third seal plug is a static pressure cavity, the static pressure pipe penetrates through the third seal plug and is communicated with the static pressure cavity, and a plurality of static pressure holes communicated with the outside are further arranged on the shell of the static pressure cavity.

In order to better implement the method of the utility model, further, the number of the static vents is two, and the static vents are symmetrically arranged on the surface of the shell.

In order to better implement the method of the present invention, further, a drip hole is further provided on the housing between the first plug and the second plug.

In order to better implement the method of the present invention, further, the tail portion of the housing is provided with a step.

In order to better implement the method of the present invention, further, the upper pressure holes and the lower pressure holes are symmetrically arranged.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

(1) according to the utility model, the heater strip is embedded into the shell, so that the internal volume of the probe can be increased, which is equivalent to phase change and probe integral volume reduction, the pneumatic characteristic of the probe is not influenced, meanwhile, the problem of welding quality of the heater strip in a narrow space is solved, the insulation and qualification rate of the probe are improved, in addition, the heater strip can be closer to a deicing position, the deicing efficiency is improved, and the heater strip is arranged in the shell, so that dust is not easily accumulated, and the heat release of the heater strip is influenced;

(2) the utility model optimizes the inner structure of the probe, realizes the feeling of total pressure, static pressure, upper surface pressure and lower surface pressure, simultaneously realizes the functions of dewatering and dedusting of the total pressure and the static pressure of the probe and the deicing function of the probe, and has the advantages of complete functions, small volume, good insulativity, high deicing efficiency and easy manufacture;

(3) the utility model successfully embeds the heating wire into the shell by utilizing a metal additive manufacturing technology, further optimizes the probe structure, avoids the influence of the heating wire on the gas circuit pipeline in the probe, reduces the volume of the probe, improves the insulativity and the deicing efficiency of the probe, and is suitable for wide popularization and application.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a perspective view of an atmospheric data probe according to the present invention.

FIG. 2 is a schematic cross-sectional view of an atmospheric data probe according to the present invention;

fig. 3 is a schematic perspective view of a heater wire according to the present invention.

Wherein: 1-total pressure port, 2-upper pressure hole, 3-lower pressure hole, 4-drip hole, 5-static pressure hole, 6-upper pressure pipe, 7-total pressure pipe, 8-lower pressure pipe, 9-static pressure pipe, 10-shell, 11-first sealing plug, 12-pressure hole, 13-upper pressure cavity, 14-lower pressure cavity, 15-total pressure hole, 16-second sealing plug, 17-third sealing plug and 18-heating wire.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "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 only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the definitions of "first" and "second" are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly including one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

the main structure of this embodiment, as shown in fig. 1 to 3, includes a housing 10, the front portion of the housing 10 is a total pressure port 1, the upper side of the front portion of the housing 10 is provided with an upper pressure hole 2, the lower side of the front portion of the housing 10 is provided with a lower pressure hole 3, an upper pressure increasing pipe 6, a total pressure pipe 7, a lower pressure increasing pipe 8 and a static pressure pipe 9 are inserted into the housing 10, and the upper pressure increasing pipe 6, the total pressure pipe 7, the lower pressure increasing pipe 8 and the static pressure pipe 9 all extend out of the tail portion of the housing 10 to be connected with corresponding sensors; the upper pressurizing pipe 6 is communicated with an upper pressurizing hole 2 arranged on the upper surface of the shell 10; the total pressure pipe 7 is communicated with a total pressure port 10; the lower pressure increasing pipe 8 is communicated with a lower pressure hole 3 arranged on the lower surface of the shell 10; the static pressure pipe 9 is communicated with a static pressure hole 5 arranged on a shell 10; the inner wall of the housing 10 is embedded with a spiral heating wire 18.

The specific implementation mode is that a sensor connected with the upper pressure increasing pipe 6 is directly communicated with the upper pressure hole 2 on the upper surface of the shell 10 through the upper pressure increasing pipe 6, and can measure the atmospheric data at the upper pressure hole 2; the sensor connected with the total pressure pipe 7 is directly communicated with the total pressure port 10 at the front end of the shell 10 through the total pressure pipe 7, and can measure atmospheric data at the total pressure port 10; the sensor connected with the lower pressure increasing pipe 8 is directly communicated with the lower pressure hole 3 on the lower surface of the shell 10 through the lower pressure increasing pipe 8, and can measure the atmospheric data at the lower pressure hole 3; the sensor connected with the static pressure pipe 9 is communicated with the static pressure hole 5 in the middle of the shell 10 through the static pressure pipe 9, and can measure the atmospheric data at the static pressure hole 5. In addition, the heating wire 18 is embedded into the shell 10 by adopting an additive manufacturing technology, so that the internal volume of the probe is increased, the volume of the probe can be reduced, the influence on the pneumatic characteristic of the probe is avoided, the problem of welding quality of the heating wire in a narrow space is solved, the insulation and the qualification rate of the probe are improved, the probe is closer to a deicing position, the deicing efficiency is improved, and the technical effects of difficult dust deposition in the probe and the like are achieved.

The specific process of embedding the embedded heating wire 18 into the shell 10 by using the additive manufacturing technology is that the shell 10 is manufactured by using an alloy material in an additive manufacturing mode, in the additive manufacturing process, when the position of the heating wire 18 is reached, half of the heating wire 18 is firstly manufactured in an additive manufacturing mode to be placed in a space, then the heating wire 18 is placed in the space, and metal additive manufacturing is continuously carried out, so that the heating wire 18 is fixed until the whole shell 10 is manufactured.

Example 2:

in the present embodiment, on the basis of the above embodiments, the structure inside the housing 10 is further limited, as shown in fig. 2, a first plug 11, a second plug 16, and a third plug 17 are sequentially arranged inside the housing 10 from front to back; an upper pressure cavity 13 and a lower pressure cavity 14 are arranged in the first sealing plug 11, the lower portion of the upper pressure cavity 13 is communicated with the upper pressure pipe 6, the side wall of the upper pressure cavity 13 is communicated with the outer portion of the upper pressure hole 2 through a pressure hole 12, the lower portion of the lower pressure cavity 14 is communicated with the lower pressure pipe 8, and the side wall of the lower pressure cavity 14 is communicated with the outer portion of the lower pressure hole 3 through the pressure hole 12. The first blocking plug 11 has the functions of blocking and filtering air flow, and the first blocking plug 11, the second blocking plug 16 and the third blocking plug 17 are arranged, so that a sensor connected with the upper pressure pipe 6 is directly communicated with the upper pressure hole 2 on the upper surface of the shell 10 through the upper pressure pipe 6, and can measure the atmospheric data at the upper pressure hole 2; the sensor connected with the lower pressure increasing pipe 8 is directly communicated with the lower pressure hole 3 on the lower surface of the shell 10 through the lower pressure increasing pipe 8, and can measure the atmospheric data at the lower pressure hole 3; the two do not interfere with each other. Wherein the first plug 11, the second plug 16 and the third plug 17 are welded and fixed with the inner wall of the shell 10. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 3:

in this embodiment, the structure inside the housing 10 is further defined on the basis of the above embodiment, as shown in fig. 2, a total pressure hole 15 is further provided in the first plug 11, and the total pressure pipe 7 penetrates through the second plug 16 and the third plug 17 and is communicated with the total pressure port 1 through the total pressure hole 15. In order to guarantee, the sensor connected with the total pressure pipe 7 is directly communicated with the total pressure port 10 at the front end of the shell 10 through the total pressure pipe 7, so that the atmospheric data at the total pressure port 10 can be measured, the pressure measurement influence at the upper pressure hole 2 and the lower pressure block 3 is not influenced, and the gas leakage of the front and rear pressure cavities is prevented. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 4:

in this embodiment, the structure inside the housing 10 is further limited on the basis of the above embodiment, as shown in fig. 2, the space of the housing 10 between the second plug 16 and the third plug 17 is a static pressure chamber, the static pressure pipe 9 penetrates through the third plug 17 to communicate with the static pressure chamber, and the housing 10 of the static pressure chamber is further provided with a plurality of static pressure holes 5 communicating with the outside. The sensor connected with the static pressure pipe 9 is communicated with a static pressure cavity in the middle of the shell 10 through the static pressure pipe 9, and the surface of the shell 10 of the static pressure cavity is provided with a plurality of static pressure holes 5, so that atmospheric data at the static pressure holes 5 can be measured. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 5:

in the present embodiment, on the basis of the above-mentioned embodiments, the structure inside the housing 10 is further defined, and as shown in fig. 2, the number 5 of the static pressure holes is two, and the static pressure holes are symmetrically arranged on the surface of the housing 10. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 6:

in this embodiment, on the basis of the above embodiment, the structure inside the housing 10 is further limited, and as shown in fig. 2, a drip hole 4 is further provided on the housing 10 between the first plug 11 and the second plug 16. In actual use, if accumulated water and dust exist, the water can be discharged out of the probe through the water dripping hole 4 close to the lower part of the actual installation position under the action of gravity. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 7:

in this embodiment, on the basis of the above embodiments, the structure inside the housing 10 is further defined, and as shown in fig. 2, the tail of the housing 10 is provided with a step. The tail part is provided with a step, and the inner sleeve can be used in various support arm structures at the rear end to form a universal design. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Example 8:

the present embodiment further defines the structure inside the housing 10 on the basis of the above embodiments, and as shown in fig. 2, the upper pressure hole 2 and the lower pressure hole 3 are symmetrically arranged. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

It is to be understood that the principles and operation of the atmospheric data probe structure, such as the static pressure tube 9 and the heater wire 18, according to one embodiment of the present invention are well known in the art and will not be described in detail herein.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (8)

1. The small deicing air data probe is characterized by comprising a shell (10), wherein the front part of the shell (10) is provided with a total pressure port (1), the upper side of the middle front part of the shell (10) is provided with an upper pressure hole (2), the lower side of the middle front part of the shell (10) is provided with a lower pressure hole (3), an upper pressure pipe (6), a total pressure pipe (7), a lower pressure pipe (8) and a static pressure pipe (9) are embedded in the shell (10), and the upper pressure pipe (6), the total pressure pipe (7), the lower pressure pipe (8) and the static pressure pipe (9) extend out of the tail part of the shell (10) to be connected with corresponding sensors; the upper pressurizing pipe (6) is communicated with an upper pressurizing hole (2) arranged on the upper surface of the shell (10); the total pressure pipe (7) is communicated with the total pressure port (1); the lower pressure increasing pipe (8) is communicated with a lower pressure hole (3) arranged on the lower surface of the shell (10); the static pressure pipe (9) is communicated with a static pressure hole (5) arranged on the shell (10); the inner wall of the shell (10) is also embedded with a spiral heating wire (18).

2. The small anti-icing air data probe according to claim 1, characterized in that a first sealing plug (11), a second sealing plug (16) and a third sealing plug (17) are sequentially arranged in the shell (10) from front to back; be provided with in first shutoff (11) and press chamber (13), push down chamber (14), go up pressure chamber (13) lower part intercommunication and go up booster pipe (6), and go up pressure chamber (13) lateral wall and go up pressure hole (2) intercommunication outside through pressure hole (12), push down chamber (14) lower part intercommunication push up booster pipe (8) down, and push down chamber (14) lateral wall and push down hole (3) intercommunication outside through pressure hole (12).

3. The small anti-icing and deicing air data probe as claimed in claim 2, wherein a total pressure hole (15) is further formed in the first sealing plug (11), and the total pressure pipe (7) penetrates through the second sealing plug (16) and the third sealing plug (17) and is communicated with the total pressure port (1) through the total pressure hole (15).

4. The small anti-icing and deicing air data probe according to claim 3, characterized in that a space of the housing (10) between the second sealing plug (16) and the third sealing plug (17) is a static pressure cavity, the static pressure pipe (9) penetrates through the third sealing plug (17) to be communicated with the static pressure cavity, and a plurality of static pressure holes (5) communicated with the outside are further formed in the housing (10) of the static pressure cavity.

5. A small anti-icing air data probe according to claim 4, characterized in that the static vents (5) are two and are symmetrically arranged on the surface of the shell (10).

6. A small anti-icing and deicing air data probe according to any one of claims 2 to 5, characterized in that a water dripping hole (4) is further formed in the housing (10) between the first sealing plug (11) and the second sealing plug (16).

7. A small anti-icing air data probe according to any one of claims 1 to 5, characterized in that a step is provided at the tail of the housing (10).

8. A small anti-icing air data probe according to any one of claims 2 to 5, characterized in that the upper pressure holes (2) and the lower pressure holes (3) are symmetrically arranged.

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