CN219712641U - Rocket liquid oxygen conveying pipe compensator - Google Patents
Rocket liquid oxygen conveying pipe compensator Download PDFInfo
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- CN219712641U CN219712641U CN202320155844.8U CN202320155844U CN219712641U CN 219712641 U CN219712641 U CN 219712641U CN 202320155844 U CN202320155844 U CN 202320155844U CN 219712641 U CN219712641 U CN 219712641U
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- Prior art keywords
- corrugated
- liquid oxygen
- pipe body
- corrugated pipe
- oxygen delivery
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- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000005452 bending Methods 0.000 claims abstract description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000012545 processing Methods 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The embodiment of the utility model provides a rocket liquid oxygen delivery pipe compensator, which comprises a corrugated pipe body, an upper flange and a lower flange, wherein the upper flange and the lower flange are arranged at two ends of the corrugated pipe body, the corrugated pipe body is in bending arrangement, the corrugated pipe body comprises a plurality of corrugated units, the crest spacing of one side of each corrugated unit is larger than the crest spacing of the other side, one side with small crest spacing is positioned at a bending inner side edge, and one side with large crest spacing is positioned at a bending outer side edge. The corrugated pipe body is provided with the corrugated units, the processing cost is reduced, the processing efficiency is improved, the corrugated units are of a structure that the wave crest distance on one side is larger than that on the other side, and the corrugated pipe body can simultaneously compensate pipeline axial errors, radial errors, angle errors and circumferential errors caused by the working conditions of assembly, filling and flight overload of the liquid carrier rocket pipeline, so that the effect of protecting the pipeline is achieved, and the compensation effectiveness is improved.
Description
Technical Field
The utility model relates to the technical field of liquid rocket conveying pipe compensation, in particular to a rocket liquid oxygen conveying pipe compensator.
Background
In the existing carrier rocket power transmission system mainly using liquid fuel, a corrugated compensator pipeline with a certain length is generally adopted, the corrugated compensator is adopted in the transmission pipeline, the compensation performance of the pipeline is mainly increased in consideration of installation, filling and flying of the pipeline, the installation is convenient, in addition, the influences of factors such as medium working pressure, environment temperature, medium compatibility and mechanical environment conditions are also considered, the corrugated compensator is increased in the existing mode of a large conduit (the diameter is larger than phi 25 mm), otherwise, the pipeline is very difficult in assembly due to error accumulation, temperature deformation and the like, and even butt joint between interfaces cannot be guaranteed. Rocket propellant delivery lines are typically above 150mm in diameter, and therefore bellows compensators must be added in place.
The conventional corrugated pipe compensator mainly comprises a corrugated pipe and flanges at two ends of the corrugated pipe, wherein the pipe diameters of the corrugated pipes are the same, and on the basis, the Chinese patent publication number is: CN202252579U, patent name: reducing bellows, including middle section bellows, left Duan Bowen pipe and right section bellows, left Duan Bowen pipe and right section bellows are located the both sides of middle section bellows respectively, and the tip of left Duan Bowen pipe and the tip of right section bellows have straight flange section respectively, and the diameter of each crest of left section bellows is the same and is less than the diameter of middle section bellows crest with the diameter of each crest of right section bellows, and middle section bellows, left Duan Bowen pipe, right section bellows and straight flange section are integrated into one piece.
In the implementation of the present utility model, although the above patent can satisfy the compensation performance to some extent, the inventor finds that at least the following problems exist in the prior art: since the bellows compensators used in liquid fuel vehicles are required to be displaced axially, transversely, angularly or annularly, depending on the situation, and in different situations, different bellows compensators are required to be used,
for example, expansion joints on axially compensating straight pipe sections compensate for stretching and compressing in the axial direction of the expansion joint and pipe section. The rated compensation amount given by the expansion joint comprises the sum of the tensile displacement and the compressive displacement. In operation, axial displacement of the pipe is absorbed mainly by axial deformation of the corrugated portion thereof.
Lateral compensation is a form of compensation in "L'," Z "-type pipes. The straight line compensation is realized through the bending deformation of the paired corrugated pipes.
The compensation of the angle compensation pipeline requires the expansion joint to bend and deform, and the expansion joint can deflect in an angle direction in any plane, so that the expansion joint can absorb the angular displacement (spatial angular displacement) in any plane of the pipeline.
The annular compensator compensates torsional deformation (axial torsion angle) of the pipeline in the axial direction by using the expansion joint deformation.
The requirements of different conditions on multiple aspects of use cannot be met in the above patent, so that the universality of the corrugated pipe is poor, the traditional corrugated compensator is mainly used for compensating the axial displacement of the pipeline and the transverse displacement of a small amount of compensating pipelines, but cannot compensate the torsional deformation caused by rocket body pipeline assembly and flight working conditions, in the practical application process, the bending deformation and the torsional deformation of a liquid carrier rocket conveying pipe are increased due to pipeline assembly errors during rocket liquid oxygen filling and overload in the flight process, the traditional compensator is difficult to play a compensation role on a space pipeline, the pipeline is concentrated due to overlarge bending and torsion of the pipeline in the flight process, the pipeline is damaged, and even other structures such as rocket body clamps and supports are damaged.
Therefore, the number and types of compensators are increased, the design and processing difficulties of pipelines and compensators are increased due to the increase of the number and types of compensators, the reliability of a pipeline system is further reduced due to the increase of the types and the numbers of the compensators, the flow resistance of a conveying pipe is increased, and meanwhile, the production cost is increased, so that the applicability and the practicability are limited.
Disclosure of Invention
Therefore, an object of the embodiments of the present utility model is to provide a rocket liquid oxygen delivery pipe compensator, which can simultaneously compensate for pipe axial errors, radial errors, angle errors and circumferential errors caused by liquid carrier rocket pipes under the working conditions of assembly, filling and flight overload.
The embodiment of the utility model provides a rocket liquid oxygen delivery pipe compensator, which comprises a corrugated pipe body, an upper flange and a lower flange, wherein the upper flange and the lower flange are arranged at two ends of the corrugated pipe body, the corrugated pipe body is in bending arrangement, the corrugated pipe body comprises a plurality of corrugated units, the crest spacing of one side of each corrugated unit is larger than the crest spacing of the other side, one side with small crest spacing is positioned at the bent inner side edge, and one side with large crest spacing is positioned at the bent outer side edge.
Further preferred are: the curved shape is S-shaped.
Further preferred are: the wave crest and the wave trough of the corrugated unit are arranged in a semicircular mode, and the semicircular radius of the wave crest and the semicircular radius of the wave trough on the same side are the same.
Further preferred are: the radius of the semi-circle on the large side of the crest spacing in the corrugated unit is 1.3-2 times of the radius of the semi-circle on the small side of the crest spacing.
Further preferred are: the two ends of the corrugated pipe body are respectively integrally formed with connectors, and the upper flange and the lower flange are respectively fixed with the end parts of the connectors through argon arc welding.
Further preferred are: the top surface of upper flange and the bottom surface of lower flange all are provided with the tongue-and-groove that is used for installing sealed graphite circle.
Further preferred are: the depth of the mortise is 1/4 to 1/3 of the thickness of the upper flange or the lower flange. Further preferred are: the number of the ripple units is seventy-six.
Further preferred are: the welding fixation is argon arc welding fixation.
Further preferred are: the corrugated pipe body is integrally formed or a plurality of corrugated units are sequentially connected, so that the corrugated pipe body is in a bent shape.
The technical scheme has the following beneficial effects:
1. the corrugated pipe body is formed by a plurality of connected corrugated units, the processing cost is reduced, the processing efficiency is improved, the corrugated units are of structures with the wave crest spacing on one side being larger than the wave crest spacing on the other side, in the practical application process, the upper flange and the lower flange can move up and down along the Z axis to compensate axial deviation, can move back and forth and left and right along a plane to compensate radial deviation, can rotate along the X, Y axis to compensate angle deviation, and can twist along the Z axis to compensate annular deviation, so that the effects of simultaneously compensating pipeline axial errors, radial errors, angle errors and annular errors brought by liquid carrier rocket pipelines under the working conditions of assembly, filling and flying overload are achieved, the effect of protecting the pipelines is achieved, the effectiveness and the stability of compensation are improved, and the corrugated pipe is high in applicability and practicality;
2. the wave crests and the wave troughs in the corrugated units are arranged in a semicircular mode, and the effective length can be changed by changing the diameter of the semicircular mode, so that the application range of the corrugated units is improved;
3. meanwhile, the semicircular arrangement is beneficial to reducing the resistance coefficient of the corrugated pipe body and improving the conveying efficiency;
4. and mortises for installing sealing graphite rings are formed in the top surface of the upper flange and the bottom surface of the lower flange, so that the low-temperature sealing performance of the whole structure is ensured.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2B;
fig. 4 is a schematic structural view of a bellows unit according to the present utility model.
Reference numerals:
1. a bellows body; 2. an upper flange; 3. a lower flange; 11. a corrugated unit; 4. a joint; 5. mortises.
Detailed Description
Features and exemplary embodiments of various aspects of the utility model are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present utility model; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As shown in fig. 1 to 4, a rocket liquid oxygen delivery pipe compensator comprises a corrugated pipe body 1, and an upper flange 2 and a lower flange 3 which are arranged at two ends of the corrugated pipe body 1, wherein the corrugated pipe body 1 is in a bending arrangement, and particularly in the practical application process, the bending shape of the corrugated pipe body 1 is in an S shape, two ends of the corrugated pipe body 1 are respectively integrally formed with a joint 4, and the upper flange 2 and the lower flange 3 are respectively fixed with end parts of the joint 4 through argon arc welding. In this embodiment, the joint 4 is of a cylindrical structure, and is mainly used for being fixed with the upper flange 2 or the lower flange 3 by welding, specifically, may be fixed by argon arc welding, so as to improve the stability and reliability of the fixation, and is also convenient for the fixation operation. In the practical application process, the material of the corrugated pipe body 1 is a common structure in the prior art, and can be specifically a material structure such as stainless steel.
As shown in fig. 1, 2 and 3, the bellows body 1 includes a plurality of repeatedly arranged and integrally bulging-shaped bellows units 11, and in this embodiment, the number of bellows units 11 is seventy-six. In the practical application process, the water content can be smaller or larger than seventy-six, the processing can be performed as needed.
The crest spacing of one side of the corrugated unit 11 is larger than the crest spacing of the other side, the crest spacing of the side with larger crest spacing is 2 times R2, the crest spacing of the side with smaller crest spacing is 2 times R1, as shown in FIG. 4, and the side R1 with smaller crest spacing is positioned on the bent inner side, and the side R2 with larger crest spacing is positioned on the bent outer side. In this embodiment, the corrugated units 11 are repeatedly arranged in a single structure, and the corrugated pipes are integrally formed, so that the processing cost is reduced, the processing difficulty is reduced, the processing efficiency is improved, the upper flange 2 and the lower flange 3 can move up and down along the Z axis to compensate axial deviation, can move back and forth and left and right along the plane to compensate radial deviation, can rotate along the X, Y axis to compensate angle deviation, and can twist along the Z axis to compensate annular deviation, thereby realizing the effects of simultaneously compensating pipeline axial error, radial error, angle error and annular error brought by liquid carrier rocket pipelines under the working conditions of assembly, filling and flight overload, achieving the effect of protecting the pipelines, and improving the effectiveness and stability of compensation.
As shown in fig. 2 and fig. 4, the peaks and the troughs of the corrugated unit 11 are all semicircular, specifically, as shown in R1 and R2 in fig. 4, the radius of the semicircle on the side with the larger peak distance is R2, the radius of the semicircle on the side with the smaller peak distance is R1, and the radius of the semicircle on the same side is the same as that of the semicircle on the trough. In this embodiment, the peaks and the troughs of the corrugated units 11 are all semicircular, and in the practical application process, the effective length of the corrugated pipe body 1 can be changed by changing the radius of the semicircle, such as R1 and R2, so as to improve the application range of the corrugated pipe body.
As shown in fig. 4, the peak pitch large side semicircular radius in the corrugated unit 11 is 1.3 times to 2 times the peak pitch small side semicircular radius. In this embodiment, the radius of the crest side of the large pitch in the corrugated unit 11 is 1.3-2 times that of the crest side of the small pitch, and with this structure, not only the effectiveness of bending can be ensured, but also the compensation stability can be effectively improved.
As shown in fig. 2, the top surface of the upper flange 2 and the bottom surface of the lower flange 3 are provided with mortises 5 for mounting sealing graphite rings. The depth of the mortise 5 is 1/4 to 1/3 of the thickness of the upper flange 2 or the lower flange 3, and the advantage is that: the structural strength of the flange can be ensured, the effective compression amount of the graphite sealing ring can be ensured by the deeper mortise, and the sealing performance is improved. And when in installation, the graphite ring is installed in the mortise 5 and is abutted against the surface of the installation part through the graphite ring so as to ensure the temperature resisting tightness of the connection part.
The technical scheme has the following beneficial effects:
the corrugated pipe body comprises a plurality of corrugated units which are sequentially connected and are arranged along the curved extending path or direction of the corrugated pipe body and are formed by integral bulging, so that the processing cost is reduced, and the processing efficiency is improved; the corrugated unit is of a structure that the wave crest spacing of one side is larger than that of the other side, in the practical application process, both the upper flange and the lower flange can move up and down along the Z axis to compensate axial deviation, can also move back and forth and left and right along the plane to compensate radial deviation, can also rotate along the X, Y axis to compensate angle deviation, and can also twist along the Z axis to compensate circumferential deviation, so that the axial error, radial error, angle error and circumferential error of a pipeline brought by a liquid carrier rocket pipeline under the working conditions of assembly, filling and flight overload can be compensated simultaneously, the effect of protecting the pipeline is achieved, the effectiveness and stability of compensation are improved, and the corrugated unit is strong in applicability and good in practicability;
the wave crests and the wave troughs in the corrugated units are arranged in a semicircular mode, and the effective length can be changed by changing the diameter of the semicircular mode, so that the application range of the corrugated units is improved;
the semicircular arrangement is beneficial to reducing the resistance coefficient of the corrugated pipe body and improving the conveying efficiency;
the mortises for installing the sealing graphite rings are arranged on the top surface of the upper flange and the bottom surface of the lower flange, so that the low-temperature sealing performance of the whole structure is guaranteed.
In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by "upper, lower, inner and outer", etc. in terms are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first, second, or third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The terms "mounted, connected, and coupled" should be construed broadly in this disclosure unless otherwise specifically indicated and defined, such as: can be fixed connection, detachable connection or integral connection; it may also be a mechanical connection, an electrical connection, or a direct connection, or may be indirectly connected through an intermediate medium, or may be a communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. The utility model provides a rocket liquid oxygen conveyer pipe compensator, includes bellows body (1) and sets up upper flange (2) and lower flange (3) at bellows body (1) both ends, its characterized in that: the corrugated pipe body (1) is in a bending arrangement, the corrugated pipe body (1) comprises a plurality of corrugated units (11), one side peak spacing of the corrugated units (11) is larger than the other side peak spacing, one side with small peak spacing is located on the bent inner side edge, and one side with large peak spacing is located on the bent outer side edge.
2. A rocket liquid oxygen delivery tube compensator according to claim 1 wherein: the curved shape is S-shaped.
3. A rocket liquid oxygen delivery tube compensator according to claim 2 wherein: the wave crests and the wave troughs of the corrugated units (11) are semicircular, and the semicircular radiuses of the wave crests and the semicircular radiuses of the wave troughs on the same side are the same.
4. A rocket liquid oxygen delivery tube compensator according to claim 3 wherein: the radius of the semi-circle on the large side of the peak distance in the corrugated unit (11) is 1.3-2 times of the radius of the semi-circle on the small side of the peak distance.
5. A rocket liquid oxygen delivery tube compensator according to claim 1 wherein: the corrugated pipe is characterized in that connectors (4) are integrally formed at two ends of the corrugated pipe body (1) respectively, and the upper flange (2) and the lower flange (3) are welded and fixed with the ends of the connectors (4) respectively.
6. A rocket liquid oxygen delivery tube compensator according to claim 5 wherein: the top surface of the upper flange (2) and the bottom surface of the lower flange (3) are both provided with a mortise (5) for installing the sealing graphite ring.
7. A rocket liquid oxygen delivery tube compensator according to claim 6 wherein: the depth of the mortise (5) is 1/4 to 1/3 of the thickness of the upper flange (2) or the lower flange (3).
8. A rocket liquid oxygen delivery tube compensator according to claim 1 wherein: the number of the corrugated units (11) is seventy six.
9. A rocket liquid oxygen delivery tube compensator according to claim 5 wherein: the welding fixation is argon arc welding fixation.
10. A rocket liquid oxygen delivery tube compensator according to claim 1 wherein: the corrugated pipe body (1) is integrally formed or a plurality of corrugated units (11) are sequentially connected, so that the corrugated pipe body (1) is in a bent shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320155844.8U CN219712641U (en) | 2023-02-08 | 2023-02-08 | Rocket liquid oxygen conveying pipe compensator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320155844.8U CN219712641U (en) | 2023-02-08 | 2023-02-08 | Rocket liquid oxygen conveying pipe compensator |
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| Publication Number | Publication Date |
|---|---|
| CN219712641U true CN219712641U (en) | 2023-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320155844.8U Active CN219712641U (en) | 2023-02-08 | 2023-02-08 | Rocket liquid oxygen conveying pipe compensator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118208339A (en) * | 2023-12-26 | 2024-06-18 | 北京天兵科技有限公司 | Carrier rocket low-temperature propellant pressurizing and conveying system and conveying method |
-
2023
- 2023-02-08 CN CN202320155844.8U patent/CN219712641U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118208339A (en) * | 2023-12-26 | 2024-06-18 | 北京天兵科技有限公司 | Carrier rocket low-temperature propellant pressurizing and conveying system and conveying method |
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