CN109367827B - Multi-probe water-cooled test bent - Google Patents
Multi-probe water-cooled test bent Download PDFInfo
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- CN109367827B CN109367827B CN201811380659.9A CN201811380659A CN109367827B CN 109367827 B CN109367827 B CN 109367827B CN 201811380659 A CN201811380659 A CN 201811380659A CN 109367827 B CN109367827 B CN 109367827B
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- bent
- test
- protective cover
- probe
- cover plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G7/00—Simulating cosmonautic conditions, e.g. for conditioning crews
Abstract
The invention relates to a multi-probe water-cooled test bent. The test bent comprises a bent body, a protective cover plate and a plurality of probe structures for installing sensors; the plurality of probe structures are arranged at intervals on one side of the bent body, and the protective cover plate is arranged on one side of the bent body away from the plurality of probe structures; the probe structures are communicated with the inside of the bent frame body, and a plurality of through holes for the test wires connected with the sensors to pass through are formed in one side, away from the probe structures, of the bent frame body; the bent body and the protective cover plate are respectively and independently provided with a cooling water pipeline, and the cooling water pipeline is provided with a water inlet and a water outlet. The test bent can realize multipoint measurement at the same time, can effectively improve the accuracy of measuring parameters of a convection field and the efficiency of testing, can effectively ensure that the sensor is stably measured in a height Wen Liuchang, and is easy to detach and install.
Description
Technical Field
The invention belongs to the technical field of pneumatic heat-proof ground test equipment of aerospace craft, and particularly relates to a multi-probe water-cooled test bent.
Background
An arc heating apparatus (arc heater) is an apparatus that heats a test gas by an arc to generate a thermal environment simulating hypersonic flight. The arc heating device is an important heat protection and thermal structure test device. The electric arc heating equipment is mainly used for simulating stagnation pressure and temperature or heat flux density, and evaluating the performances of heat-proof materials and heat-proof systems of reentry aircrafts, is the most important test tool for solving heat-proof design, and can also be used for researching high-temperature gas dynamics. At present, when an arc heater ground heat-proof test is carried out, the test bent is used for measuring the parameter distribution of a flow field, but the current test bent has the problems that the test efficiency of the flow field parameter is low, the stable measurement of a sensor in a height Wen Liuchang cannot be guaranteed, and the like.
Disclosure of Invention
The invention aims to provide a multi-probe water-cooled test bent capable of realizing multi-point measurement, high in test efficiency and capable of guaranteeing stable measurement of a sensor in a height Wen Liuchang so as to at least solve one technical problem in the prior art.
In order to achieve the above object, the present invention provides a multi-probe water-cooled test bent, including a bent body, a protective cover plate, and a plurality of probe structures for mounting sensors; the plurality of probe structures are arranged at intervals on one side of the bent body, and the protective cover plate is arranged on one side of the bent body far away from the plurality of probe structures; the probe structures are communicated with the inside of the bent frame body, and a plurality of through holes for the test wires connected with the sensors to pass through are formed in one side, away from the probe structures, of the bent frame body; the bent body and the protective cover plate are respectively and independently provided with a cooling water pipeline, and the cooling water pipeline is provided with a water inlet and a water outlet.
Preferably, the protective cover plate is detachably connected with the bent frame body.
Preferably, the probe structure comprises a cylindrical structure and a hemispherical structure; the two ends of the cylindrical structure are respectively connected with the bent frame body and the hemispherical structure; the test bent also comprises a sensor, the sensor is installed in the cylindrical structure, the test end of the sensor extends into the hemispherical structure, and the output end of the sensor is connected with a test wire.
Preferably, a plurality of probe structures are uniformly arranged at intervals along the length direction of the bent body.
Preferably, the bent body includes a left section and a right section from left to right, and the interiors of the left section and the right section are communicated; the probe structure is arranged on one side of the left section, the right section is provided with an extension part, the inside of the extension part is provided with an accommodating space, the extension part is used for allowing the test wire to pass through, and the side wall of the extension part is provided with a plurality of wire outlets for allowing the test wire to extend out of the extension part.
Preferably, a clamping protrusion is arranged at one end, close to the right section, of the protective cover plate, a clamping groove matched with the clamping protrusion is formed at one end, close to the left section, of the right section, and the protective cover plate is detachably connected with the bent frame body through the clamping protrusion and the clamping groove.
Preferably, a chute is arranged on one side of the bent body far away from the plurality of probe structures, and a sliding block matched with the chute is arranged on the protective cover plate.
Preferably, the sliding groove is in a strip shape.
Preferably, an insert block is arranged at one end of the protective cover plate, which is far away from the right section, and an insert slot matched with the insert block is arranged at one end of the left section.
Preferably, the side walls of the protective cover plate and the bent frame body are respectively provided with a through hole for respectively penetrating the water inlet end and the water outlet end of the cooling water pipeline; the water inlet and the water outlet are respectively arranged at the water inlet end and the water outlet end of the cooling water pipeline.
The invention has the following beneficial effects:
(1) The test bent frame is simple in structure, one side of the bent frame body is provided with a plurality of probe structures for installing sensors at intervals, multipoint measurement can be achieved simultaneously, meanwhile, the bent frame body and the protective cover plate are both provided with water cooling structures, the test bent frame which is arranged by adopting the multi-probe structures and the water cooling structures can be suitable for various test methods, and accuracy and test efficiency of parameter distribution measurement of a convection field can be effectively improved; in addition, the water cooling structure is arranged, so that the test bent is suitable for the height Wen Liuchang, and the sensor can be effectively ensured to perform stable and accurate test in the height Wen Liuchang.
(2) The bent frame body and the protective cover plate arranged in the invention can effectively protect the sensor and the test line, and ensure the safety of the sensor when the flow field works.
(3) In some preferred embodiments of the invention, the protective cover plate is detachably connected with the bent frame body, so that the sensor is greatly convenient to mount and dismount; the probe structure comprises a cylindrical structure and a hemispherical structure, the sensor is arranged in the cylindrical structure, and the hemispherical structure can effectively reduce mutual interference among multiple probes densely distributed in a flow field, so that the accuracy of measuring parameters of a convection field is improved.
Drawings
The drawings of the present invention are provided for illustrative purposes only and the proportion and the number of the parts in the drawings do not necessarily coincide with the actual product.
FIG. 1 is a schematic diagram of a multi-probe water-cooled test strip in accordance with one embodiment of the present invention.
Fig. 2 is a longitudinal cross-sectional view of the bent body and probe structure of fig. 1 taken along A-A.
Fig. 3 is a cross-sectional view of a bent body and a probe structure having a mounting hole according to another embodiment of the present invention.
Fig. 4 is a longitudinal cross-sectional view of the shield cover of fig. 1 taken along A-A.
Fig. 5 is a bottom view of the left section of the bent body of fig. 1.
Fig. 6 is a transverse cross-sectional view of the bent body of fig. 1 taken along B-B.
Fig. 7 is a schematic perspective view of the bent body and probe structure of fig. 1.
Fig. 8 is a schematic perspective view of the protective cover plate in fig. 1.
In the figure: 1: a bent body; 11: a left section; 111: a through hole; 112: a chute; 113: a slot; 114: a bump; 12: a right section; 121: an extension; 122: a wire outlet; 123: a clamping groove; 2: a probe structure; 21: a hemispherical structure; 22: a cylindrical structure; 3: a protective cover plate; 31: a slide block; 32: inserting blocks; 33: a groove; 34: the clamping bulge; 4: a cooling water pipeline; 41: a cooling water joint; 5: a sensor; 51: and (5) testing the wire.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a multi-probe water-cooled test bent, and FIG. 1 is a schematic structural view of the multi-probe water-cooled test bent in one embodiment of the invention; FIG. 2 is a longitudinal (vertical) cross-sectional view of the bent body and probe structure of FIG. 1 taken along line A-A; FIG. 3 is a cross-sectional view of a bent body and probe structure with mounting holes in another embodiment of the invention; FIG. 4 is a longitudinal (vertical) cross-sectional view of the shield cover of FIG. 1 taken along line A-A; FIG. 5 is a bottom view of the left section of the bent body of FIG. 1; FIG. 6 is a transverse (horizontal) cross-sectional view of the bent body of FIG. 1 taken along B-B; FIG. 7 is a schematic perspective view of the bent body and probe structure of FIG. 1; FIG. 8 is a schematic perspective view of the protective cover plate of FIG. 1; wherein, the cooling water pipeline is not shown in fig. 2, 3 and 4; the test lines are not illustrated in fig. 6.
In the present invention, for example, as shown in fig. 1, the multi-probe water-cooled test bent includes a bent body 1, a protective cover 3, and a plurality of probe structures 2 for mounting sensors 5 (test sensors); the plurality of probe structures 2 are arranged at intervals on one side (for example, the upper side as shown in fig. 1) of the bent body 1, and the protective cover plate 3 is arranged on one side (for example, the lower side as shown in fig. 1) of the bent body 1 away from the plurality of probe structures 2; the probe structure 2 is communicated with the inside of the bent body 1, and a plurality of through holes 111 for the test wires 51 connected with the sensors 5 to pass through are formed in one side of the bent body 1 away from the plurality of probe structures 2; a cooling water pipeline 4 is respectively and independently arranged in the bent body 1 and the protective cover plate 3, and a water inlet and a water outlet are arranged on the cooling water pipeline 4; in the present invention, the sensor may be installed, for example, through the through hole.
The multi-probe water-cooled test bent frame is provided with the plurality of probe structures 2, the probe structures 2 can be provided with the test sensors 5, multi-point measurement can be realized at the same time, the test sensors 5 and the test wires 51 connected with the test sensors 5 can be protected through the protective cover plate 3 and the bent frame body 1, the sensors 5 and the test wires 51 are prevented from being directly exposed in a flow field, the safety of the sensors 5 in the working process of the flow field is ensured, and in addition, the bent frame body 1 can also play a role in supporting, connecting and leading out the test wires 51; meanwhile, the bent body 1 and the protective cover plate 3 are both provided with water-cooling structures, and the test bent arranged by adopting the multi-probe structure and the water-cooling structure can be suitable for various test methods, so that the accuracy and the test efficiency of measuring parameters of a convection field can be effectively improved; in addition, the water cooling structure is arranged, so that the test bent is suitable for the height Wen Liuchang, and the sensor can be effectively ensured to perform stable and accurate test in the height Wen Liuchang; the test bent is suitable for flow field test in the ground heat protection test of the arc heater.
The type of the sensor 5 is not particularly limited in the present invention, and may be, for example, a temperature sensor, a pressure sensor, a heat flow sensor, etc., and each of the sensors installed in each of the probe structures may be the same or different. In the invention, the sensor can be installed in the probe structure through a mounting ring or a mounting hole matched with the sensor is formed in the probe structure, and the sensor is installed in the mounting hole in a threaded connection mode.
According to some preferred embodiments, the water inlet is connected with a water inlet pipe joint, the water outlet is connected with a water outlet pipe joint, the water inlet pipe joint and the water outlet pipe joint are respectively connected (for example, connected by welding or a threaded connection) at the positions of the water inlet and the water outlet, the water inlet pipe joint is used for being connected with a cooling water source, and the water outlet pipe joint is used for discharging cooling water flowing through the cooling water pipeline 4. In the invention, the test bent is preferably cooled by taking high-pressure circulating water as a cooling water source; in the present invention, the water inlet pipe joint and the water outlet pipe joint are collectively referred to as a cooling water joint 41. In the invention, when the test bent is adopted for testing, the cooling water connector is preferably communicated with high-pressure circulating water to cool the test bent.
According to some preferred embodiments, the protective cover 3 is detachably connected to the bent body 1, so that the installation and removal of the sensor can be greatly facilitated.
According to some preferred embodiments, the probe structure 2 comprises a cylindrical structure 22 and a hemispherical structure 21, as shown for example in fig. 1, 2, 3 and 7; the two ends of the cylindrical structure 22 are respectively connected with the bent frame body 1 and the hemispherical structure 21; the test bent further comprises a sensor 5, the sensor 5 is mounted in the cylindrical structure 22, a test end of the sensor 5 extends into the hemispherical structure 21, and an output end of the sensor 5 is connected with a test wire 51, for example, as shown in fig. 2 and 3; in the present invention, one of the sensors 5 is mounted in each of the cylindrical structures 22, preferably the sensor is mounted in the cylindrical structure through a mounting ring or preferably a mounting hole matched with the sensor is formed in the cylindrical structure, and the sensor is mounted in the mounting hole through a threaded connection manner. FIG. 2 illustrates only the distribution of sensors within the probe structure, without showing mounting rings or mounting holes that match the sensors; as can be seen from fig. 3, the cylindrical structure is provided with a mounting hole, and the sensor is mounted in the cylindrical structure through the mounting hole; in the present invention, the probe structure 2 may be formed by screwing the cylindrical structure 22 and the hemispherical structure 21, or may be formed by integrally molding the cylindrical structure 22 and the hemispherical structure 21. In the invention, the test end of the sensor 5 extends into the hemispherical structure 21, the standing point position of the hemispherical structure 21 can be used as a test point, and the hemispherical structure 21 can effectively reduce the mutual interference among multiple probes densely distributed in the flow field, thereby being beneficial to further improving the accuracy of measuring the parameters of the convection field.
According to some preferred embodiments, the end of the cylindrical structure 22 connected to the bent body 1 is provided with a perforation, so that the cylindrical structure 22 communicates with the bent body 1, the perforation being used for the passage of the test wire 51 and the sensor 5.
According to some preferred embodiments, the plurality of probe structures 2 are uniformly arranged (in a linear arrangement) at intervals along the length direction (the direction indicated by the arrow in fig. 1) of the bent body 1, for example, as shown in fig. 1 and 7.
According to some preferred embodiments, the bent body 1 comprises, from left to right, a left section 11 and a right section 12, the interiors of the left section 11 and the right section 12 being in communication; a plurality of probe structures 2 are disposed on one side of the left section 11, and the right section 12 is provided with an extension portion 121 having a receiving space therein for the test wire 51 to pass through, for example, as shown in fig. 1, 2, 3 and 7, and a plurality of outlets 122 for the test wire 51 to extend out of the extension portion 121 are formed on a side wall of the extension portion 121, for example, as shown in fig. 1 and 7. In the present invention, the bent body may be integrally formed with the left and right sections, and the extension may be integrally formed with the right section, for example.
According to some preferred embodiments, a clamping protrusion 34 is disposed at an end of the protective cover 3 near the right section 12, for example, as shown in fig. 8, an end of the right section 12 near the left section 11 is a clamping groove 123 matched with the clamping protrusion 34, for example, as shown in fig. 2, 3 and 7, and the protective cover 3 and the bent frame body 1 are detachably connected through the clamping protrusion 34 and the clamping groove 123.
According to some preferred embodiments, the clamping groove 123 is U-shaped.
According to some preferred embodiments, a sliding groove 112 is provided on a side of the bent body 1 away from the plurality of probe structures 2, for example, as shown in fig. 2, 3 and 5, and a sliding block 31 matched with the sliding groove 112 is provided on the protective cover 3, for example, as shown in fig. 4. In the present invention, it is preferable to provide the sliding groove 112 and the sliding block 31, and the protective cover 3 may slide in the sliding groove 112 through the sliding block 31, so that the protective cover 3 is easily mounted on the bent body 1.
According to some preferred embodiments, the chute 112 is elongated.
According to some preferred embodiments, the sliding grooves 112 are formed with a protrusion 114 therebetween, for example, as shown in fig. 2, 3 and 5, and the sliding blocks 31 are formed with a groove 33 therebetween, for example, as shown in fig. 4; the height of the sliding block 31 is smaller than the depth of the groove 33, so that when the protective cover 3 is connected to the bent body 1, a gap is formed between the protective cover 3 and the bent body 1, and the gap is used for the test wire 51 to pass through.
According to some preferred embodiments, the bumps 114 are elongated.
According to some preferred embodiments, the plurality of through holes 111 are uniformly spaced along the length of the bump 114, as shown in fig. 5, for example.
According to some preferred embodiments, the end of the protective cover 3 remote from the right section 12 is provided with an insert 32, for example, as shown in fig. 1 and 8, and the end of the left section 11 is provided with a slot 113 matching the insert 32, for example, as shown in fig. 5 and 7; when the protective cover plate 3 is connected to the bent body 1, the insert block 32 is inserted into the slot 113.
According to some preferred embodiments, the side walls of the protective cover plate 3 and the bent body 1 are respectively provided with a through hole for respectively penetrating the water inlet end and the water outlet end of the cooling water pipeline 4; the water inlet and the water outlet are respectively arranged at the water inlet end and the water outlet end of the cooling water pipeline 4. In the present invention, a schematic diagram of the distribution of the cooling water lines 4 in the bent main body 1 may be as shown in fig. 6, for example, and the distribution of the cooling water lines 4 in the protective cover 3 may be the same as the cooling water lines in the bent main body 1.
It is specifically noted that, in the present invention, the azimuth or positional relationship indicated by the terms "upper", "lower", "left", "right", etc., are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated facilities or elements must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (3)
1. A multi-probe water-cooled test bent is characterized in that:
comprises a bent frame body (1), a protective cover plate (3) and a plurality of probe structures (2) for installing sensors (5);
the plurality of probe structures (2) are arranged at intervals on one side of the bent body (1), and the protective cover plate (3) is arranged on one side, far away from the plurality of probe structures (2), of the bent body (1);
the probe structure (2) is communicated with the inside of the bent body (1), and a plurality of through holes (111) for a test wire (51) connected with the sensor (5) to pass through are formed in one side, away from the plurality of probe structures (2), of the bent body (1);
a cooling water pipeline (4) is respectively and independently arranged in the bent body (1) and the protective cover plate (3), and a water inlet and a water outlet are arranged on the cooling water pipeline (4);
the probe structure (2) comprises a cylindrical structure (22) and a hemispherical structure (21);
the two ends of the cylindrical structure (22) are respectively connected with the bent frame body (1) and the hemispherical structure (21);
the test bent also comprises a sensor (5), the sensor (5) is arranged in the cylindrical structure (22), the test end of the sensor (5) stretches into the hemispherical structure (21), and the output end of the sensor (5) is connected with a test wire (51);
the bent body (1) comprises a left section (11) and a right section (12) from left to right, and the left section (11) and the right section (12) are communicated internally;
the plurality of probe structures (2) are arranged on one side of the left section (11), the right section (12) is provided with an extension part (121) with an accommodating space inside and used for the test wire (51) to pass through, and the side wall of the extension part (121) is provided with a plurality of wire outlets (122) for the test wire (51) to extend out of the extension part (121);
one end, close to the right section (12), of the protective cover plate (3) is provided with a clamping protrusion (34), one end, close to the left section (11), of the right section (12) is provided with a clamping groove (123) matched with the clamping protrusion (34), and the protective cover plate (3) is detachably connected with the bent frame body (1) through the clamping protrusion (34) and the clamping groove (123);
a sliding groove (112) is formed in one side, far away from the plurality of probe structures (2), of the bent frame body (1), and a sliding block (31) matched with the sliding groove (112) is arranged on the protective cover plate (3);
an inserting block (32) is arranged at one end, far away from the right section (12), of the protective cover plate (3), and an inserting groove (113) matched with the inserting block (32) is arranged at one end of the left section (11);
the side walls of the protective cover plate (3) and the bent frame body (1) are respectively provided with a through hole for respectively penetrating the water inlet end and the water outlet end of the cooling water pipeline (4);
the water inlet and the water outlet are respectively arranged at the water inlet end and the water outlet end of the cooling water pipeline (4).
2. The test bent according to claim 1, wherein:
the probe structures (2) are uniformly arranged at intervals along the length direction of the bent body (1).
3. The test bent according to claim 1, wherein:
the sliding groove (112) is in a strip shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380659.9A CN109367827B (en) | 2018-11-20 | 2018-11-20 | Multi-probe water-cooled test bent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380659.9A CN109367827B (en) | 2018-11-20 | 2018-11-20 | Multi-probe water-cooled test bent |
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| Publication Number | Publication Date |
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| CN109367827A CN109367827A (en) | 2019-02-22 |
| CN109367827B true CN109367827B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811380659.9A Active CN109367827B (en) | 2018-11-20 | 2018-11-20 | Multi-probe water-cooled test bent |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110823502B (en) * | 2019-11-20 | 2020-06-02 | 中国空气动力研究与发展中心超高速空气动力研究所 | Whole water-cooling bent in high temperature flow field |
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| CN104458195A (en) * | 2014-10-17 | 2015-03-25 | 北京航天益森风洞工程技术有限公司 | Temperature and pressure measurement framed bent installing device |
| CN204368446U (en) * | 2014-12-26 | 2015-06-03 | 北京强度环境研究所 | A kind of to the omnidistance controlled test system of test article surface intensification cooling |
| CN106482923A (en) * | 2016-10-28 | 2017-03-08 | 北京航天长征飞行器研究所 | Test device is demarcated in a kind of flow field being applied under hot environment |
| CN206740354U (en) * | 2017-05-18 | 2017-12-12 | 西北工业大学 | A kind of stagnation temperature framed bent for continuous high-speed wind-tunnel hydrojet nitrogen cooling system |
| CN108490287A (en) * | 2018-03-07 | 2018-09-04 | 南通天禾机械科技有限公司 | Full-automatic ageing machine multistage placement test technique |
-
2018
- 2018-11-20 CN CN201811380659.9A patent/CN109367827B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458195A (en) * | 2014-10-17 | 2015-03-25 | 北京航天益森风洞工程技术有限公司 | Temperature and pressure measurement framed bent installing device |
| CN204368446U (en) * | 2014-12-26 | 2015-06-03 | 北京强度环境研究所 | A kind of to the omnidistance controlled test system of test article surface intensification cooling |
| CN106482923A (en) * | 2016-10-28 | 2017-03-08 | 北京航天长征飞行器研究所 | Test device is demarcated in a kind of flow field being applied under hot environment |
| CN206740354U (en) * | 2017-05-18 | 2017-12-12 | 西北工业大学 | A kind of stagnation temperature framed bent for continuous high-speed wind-tunnel hydrojet nitrogen cooling system |
| CN108490287A (en) * | 2018-03-07 | 2018-09-04 | 南通天禾机械科技有限公司 | Full-automatic ageing machine multistage placement test technique |
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| CN109367827A (en) | 2019-02-22 |
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