CN214373250U - PIV flow field measuring device in vacuole water drum - Google Patents
PIV flow field measuring device in vacuole water drum Download PDFInfo
- Publication number
- CN214373250U CN214373250U CN202120494577.8U CN202120494577U CN214373250U CN 214373250 U CN214373250 U CN 214373250U CN 202120494577 U CN202120494577 U CN 202120494577U CN 214373250 U CN214373250 U CN 214373250U
- Authority
- CN
- China
- Prior art keywords
- sliding plate
- water cylinder
- flow field
- groove
- endoscope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Endoscopes (AREA)
Abstract
The utility model relates to a PIV flow field measuring device in a vacuole water cylinder, which comprises a water cylinder component, wherein the cross section of the water cylinder component is of a rectangular structure, glass plates are embedded on the peripheral wall surfaces of the water cylinder component, one of the glass plates is provided with a supporting device, an endoscope is vertically arranged corresponding to the glass plate and sequentially penetrates through the supporting device from outside to inside, the outer end of the endoscope is connected with an external camera through a conversion joint, and the inner end of the endoscope is positioned in liquid inside the water cylinder component; the glass plate provided with the supporting device is provided with the elongated grooves which are parallel at intervals, and the supporting device and the endoscope move and adjust in the length direction of the water cylinder component relative to the glass plate along the elongated grooves, so that the vertical shooting of the flow field of the cross section of the water cylinder is realized, the measurement of the flow field of the cross section in the cavitation water cylinder is greatly assisted, the stability of a measuring light path and the gathering and adjustment of a measuring plane are effectively improved, and the water cylinder disassembly time and the disassembly workload in a flow field test are greatly reduced.
Description
Technical Field
The utility model belongs to the technical field of vacuole water section of thick bamboo measurement technique and specifically relates to a PIV flow field measuring device in vacuole water section of thick bamboo.
Background
The PIV measurement technology is an important means for measuring the velocity field in the cavitation water cylinder, and is widely applied to the velocity field measurement of various hydrodynamic models.
In the prior art, for the PIV measurement in the vacuole water drum, a camera is usually placed outside a water drum test section for shooting, and a stereo PIV measurement method is generally adopted for measuring a cross-section flow field, that is, two cameras are adopted to shoot the same cross section in the flow field at the same time, and three velocity components in the plane are calculated, so that the flow field information in the plane can be obtained. In the existing measurement mode, the light path of the camera needs to be transmitted through three media of air, organic glass and water, and in addition, in order to prevent refraction of the wall surface of the organic glass, a water prism needs to be arranged on the wall surface of the organic glass, so that the complexity and instability of the transmission of the light path of the camera are greatly increased, and the difficulty of focusing and adjusting the camera is increased; on the other hand, the cross-sectional velocity field measured by the stereo PIV is obtained through the cross-correlation calculation of the velocity fields shot by the two cameras independently, and the error of the velocity field processing result is increased.
SUMMERY OF THE UTILITY MODEL
The PIV flow field measuring device in the vacuole water cylinder is reasonable in structure, and therefore vertical shooting of the flow field of the cross section of the water cylinder is achieved, measurement of the flow field of the cross section in the vacuole water cylinder is greatly assisted, a measuring light path is stable and reliable, and efficiency is greatly improved.
The utility model discloses the technical scheme who adopts as follows:
a PIV flow field measuring device in a vacuole water cylinder comprises a water cylinder assembly, wherein the cross section of the water cylinder assembly is of a rectangular structure, glass plates are embedded on the wall surfaces of the periphery of the water cylinder assembly, a supporting device is arranged on one of the glass plates, an endoscope is vertically arranged corresponding to the glass plate and sequentially penetrates through the supporting device from outside to inside, the outer end of the endoscope is connected with an external camera through a conversion joint, and the inner end of the endoscope is positioned in liquid in the water cylinder assembly; the glass plate provided with the supporting device is provided with long grooves which are parallel at intervals, and the length direction of the long grooves is consistent with that of the water barrel assembly;
the supporting device is structurally characterized in that: the glass plate sliding device comprises an inner sliding plate and an outer sliding plate which are respectively installed on the inner side and the outer side of a corresponding glass plate in a sliding mode, the sliding direction of the inner sliding plate and the sliding direction of the outer sliding plate are consistent with the length direction of a long groove, and long bolts are installed through the outer sliding plate, the long groove and the inner sliding plate from outside to inside in sequence; and the outer side surface of the outer sliding plate and the outer side surface of the corresponding glass plate are provided with a pressing frame together.
As a further improvement of the above technical solution:
and a gland head is locked between the outer wall surface of the endoscope and the outer sliding plate, and the axial direction of the endoscope is locked and sealed relative to the outer sliding plate through the gland head.
And a sealing ring is also arranged between the inner side surface of the outer sliding plate and the outer side surface of the corresponding glass plate in a pressing way.
The structure of a water barrel component is as follows: the glass plate is embedded on four side surfaces of the support frame which are connected end to end, and comprises a horizontal glass plate with a top surface and a bottom surface and a front vertical glass plate and a rear vertical glass plate;
the support device is mounted on the rear vertical glass panel.
The structure of the vertical glass plate provided with the supporting device is as follows: the plate comprises a plate body, wherein an inner groove and an outer groove are respectively formed in the inner side surface and the outer side surface of the plate body, and an inner sliding plate and an outer sliding plate are respectively embedded in the inner groove and the outer groove; the inner bottom surface of the outer groove is provided with a circumferentially closed sealing groove, and the inner bottom surface of the outer groove positioned in the sealing groove is provided with a through long groove.
The lengths of the inner groove and the outer groove in the axial direction of the water cylinder assembly are respectively longer than those of the inner sliding plate and the outer sliding plate, so that the inner sliding plate and the outer sliding plate respectively move in the inner groove and the outer groove along the axial direction of the water cylinder assembly.
The number of the elongated slots is three, the elongated bolts penetrate through the two outer elongated slots, and the endoscope penetrates through the elongated slot in the middle.
The inner sliding plate and the outer sliding plate are respectively provided with three through holes corresponding to the long grooves from top to bottom, two through holes at the outer side are used for locking the long bolts, and a through hole at the middle part is used for penetrating through the endoscope.
The pressing frame comprises a frame body in a square structure, the frame body is fixedly connected with the outer sliding plate, the top ends and the bottom ends of the two vertical arms of the frame body respectively extend outwards to form extension arms, the extension arms protrude outwards from the top surface and the bottom surface of the outer sliding plate, and the four extension arms are respectively locked with the corresponding glass plates through fasteners.
The utility model has the advantages as follows:
the utility model has compact and reasonable structure and convenient operation, and the supporting device is arranged on the wall surface of the water cylinder component, the inner and outer wall of the water cylinder component is penetrated through, and the endoscope is arranged on the supporting device, thereby realizing the vertical shooting of the flow field of the cross section of the water cylinder by the external camera through the endoscope, not only effectively improving the stability of the measuring light path and the aggregation adjustment of the measuring plane, but also greatly reducing the disassembly time and the disassembly workload of the water cylinder in the flow field test, greatly assisting the measuring work of the flow field of the cross section in the vacuole water cylinder, improving the efficiency and having good practicability;
the utility model discloses still include following advantage:
vertical measurement of a cross section flow field is realized through the light path refraction function of the endoscope, and the stability of camera focusing adjustment is improved by utilizing the characteristic of stable propagation of light in a single medium;
the movement of the endoscope in the length direction of the water cylinder component, namely the movement in the flow direction is realized through the movement of the inner sliding plate and the outer sliding plate relative to the corresponding vertical glass plate along the length direction of the long groove; the inner and outer movement of the endoscope relative to the water barrel assembly in the axial direction is realized through the Glan head;
through the setting of supporting device, with current vacuole water section of thick bamboo measurement test, the medium (air, organic glass and water) is spread to be converted into single aqueous medium and is spread in striding of light path to effectively improved light path stability, helping hand in the improvement of measurement effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a schematic structural view of the vertical glass plate of the present invention.
Wherein: 1. a water cartridge assembly; 2. a support device; 3. an endoscope; 4. a crossover sub; 11. a horizontal glass plate; 12. a vertical glass plate; 13. a support frame; 21. an inner sliding plate; 22. an outer sliding plate; 23. a long bolt; 24. a pressing frame; 121. a plate body; 122. an inner groove; 123. an outer groove; 124. a long groove; 125. a sealing groove; 211. and a through hole.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the PIV flow field measuring device in the vacuole water cylinder of the embodiment includes a water cylinder assembly 1, the cross section of the water cylinder assembly 1 is a rectangular structure, glass plates are embedded on the peripheral wall surfaces of the water cylinder assembly 1, a supporting device 2 is installed on one of the glass plates, an endoscope 3 is vertically installed through the supporting device 2 and the corresponding glass plate in sequence from outside to inside, the outer end of the endoscope 3 is connected with an external camera through a conversion joint 4, and the inner end of the endoscope 3 is located in the liquid inside the water cylinder assembly 1; the glass plate provided with the supporting device 2 is provided with long grooves 124 which are parallel at intervals, and the length direction of the long grooves 124 is consistent with that of the water barrel assembly 1;
the supporting device 2 is arranged on the wall surface of the water barrel assembly 1, the inner side and the outer side of the water barrel assembly 1 penetrate through the wall surface of the water barrel assembly 1, the supporting device 2 is used for installing the endoscope 3, so that the vertical shooting of an external camera on the flow field of the cross section of the water barrel is realized through the endoscope 3, the stability of a measuring light path and the gathering adjustment of a measuring plane are effectively improved, the disassembling time and the disassembling workload of the water barrel in a flow field test are also greatly reduced, and the measuring work of the flow field of the cross section in the cavitation water barrel is greatly assisted.
As shown in fig. 2, the support device 2 has a structure in which: the glass plate sliding device comprises an inner sliding plate 21 and an outer sliding plate 22 which are respectively installed on the inner side and the outer side of a corresponding glass plate in a sliding mode, the sliding direction of the inner sliding plate 21 and the sliding direction of the outer sliding plate 22 are consistent with the length direction of a long groove 124, and a long bolt 23 is installed on the outer sliding plate 22, the long groove 124 and the inner sliding plate 21 in a penetrating mode from outside to inside; the outer sliding plate 22 and the outer side of the corresponding glass plate are also jointly provided with a pressing frame 24.
Through the setting of the supporting device 2, in the existing measurement test of the vacuole water cylinder, the cross-medium (air, organic glass and water) propagation of the light path is converted into the single aqueous medium propagation, so that the stability of the light path is effectively improved, and the power is assisted in the improvement of the measurement effect.
A Glan head is locked between the outer wall surface of the endoscope 3 and the outer slide plate 22, and the endoscope 3 is axially locked and sealed relative to the outer slide plate 22 by the Glan head.
And a sealing ring is also pressed between the inner side surface of the outer sliding plate 22 and the outer side surface of the corresponding glass plate.
The structure of the water barrel component 1 is as follows: the glass plate fixing device comprises a support frame 13 with a cuboid structure, wherein glass plates are respectively embedded on four side surfaces of the support frame 13 which are connected end to end, and each glass plate comprises a horizontal glass plate 11 with a top surface and a bottom surface and a front vertical glass plate 12 and a rear vertical glass plate 12;
the support device 2 is mounted on the rear vertical glass panel 12.
As shown in fig. 3, the structure of the vertical glass plate 12 to which the supporting device 2 is attached is: the plate comprises a plate body 121, wherein an inner groove 122 and an outer groove 123 are respectively formed in the inner side surface and the outer side surface of the plate body 121, and an inner sliding plate 21 and an outer sliding plate 22 are respectively embedded in the inner groove 122 and the outer groove 123; the inner bottom surface of the outer groove 123 is provided with a circumferentially closed sealing groove 125, a right sealing ring is press-fitted in the sealing groove 125, and the inner bottom surface of the outer groove 123 positioned inside the sealing groove 125 is provided with a through long groove 124.
The lengths of the inner and outer grooves 122 and 123 in the axial direction of the water barrel assembly 1 are longer than the inner and outer slide plates 21 and 22, respectively, so that the inner and outer slide plates 21 and 22 move in the inner and outer grooves 122 and 123, respectively, in the axial direction of the water barrel assembly 1.
The number of the elongated slots 124 is three, the elongated bolts 23 penetrate through the two outer elongated slots 124, and the endoscope 3 penetrates through the middle elongated slot 124.
The inner sliding plate 21 and the outer sliding plate 22 are respectively provided with three through holes 211 corresponding to the long grooves 124 from top to bottom, the two through holes 211 at the outer side are used for locking the long bolts 23, and the through hole 211 at the middle part is used for penetrating through the endoscope 3; in the embodiment, the connection sealing is effectively realized through the inner and outer three pore plates, namely the inner sliding plate 21 and the outer sliding plate 22, in cooperation with the sealing ring and the long bolt 23, and the sliding sealing inside and outside the water cylinder assembly is ensured.
The pressing frame 24 comprises a frame body of a square structure, the frame body is fixedly connected with the outer sliding plate 22, the top ends and the bottom ends of two vertical arms of the frame body respectively extend outwards to form extension arms, the extension arms protrude outwards from the top surface and the bottom surface of the outer sliding plate 22, and the four extension arms are respectively locked with the corresponding glass plates through fasteners.
In the embodiment, the endoscope 3 is a right-angle endoscope, which has a function of changing a light path by 90 degrees, has a diameter of about 8mm to 10mm, and has a focusing range of more than 100 mm; the endoscope 3 is connected with an external camera through the adapter 4, so that the flow field of the vertical incoming flow cross section is shot.
The utility model discloses a measure the use mode and do:
embedding the inner sliding plate 21 and the outer sliding plate 22 on the inner side and the outer side of the same glass plate respectively, moving the inner sliding plate 21 and the outer sliding plate 22 to the preset cross section of the water cylinder assembly 1, and connecting and locking the inner sliding plate 21 and the outer sliding plate 22 through long bolts 23;
the outer sliding plate 22 and the outer side face of the corresponding glass plate are jointly locked with a pressing frame 24, so that the outer sliding plate 22 is fixed relative to the glass plate, and the mounting of the supporting device 2 on the water barrel assembly 1 is completed;
the endoscope 3 is sequentially passed through the supporting device 2 and the water barrel assembly 1 from outside to inside, and the endoscope 3 is axially locked relative to the outer sliding plate 22, so that the endoscope 3 is perpendicular to the glass plate on which the supporting device 2 is mounted on the water barrel assembly 1;
an external camera is arranged at the outer end of the endoscope 3 through a conversion joint 4;
so that the flow field of the cross section in the water barrel component 1 can be directly shot and observed through the endoscope 3 by an external camera.
In the embodiment, the vertical measurement of the cross-section flow field is realized through the light path refraction function of the endoscope 3, and the stability of the focusing adjustment of the camera is improved by utilizing the characteristic of stable propagation of light in a single medium.
In this embodiment, the movement of the endoscope 3 in the length direction of the water cylinder assembly 1, i.e., the movement in the flow direction, is realized by the movement of the inner slide plate 21 and the outer slide plate 22 relative to the corresponding vertical glass plate 12 in the length direction of the long groove 124; the endoscope 3 is moved axially in and out relative to the water barrel assembly 1 by the glan head.
The utility model discloses compact structure, ingenious, reasonable has realized through setting up of supporting arrangement 2 that the perpendicular shooting in cross section flow field among the vacuole water drum test, and efficient, effectual to save loaded down with trivial details adjustment when shooting of different cross-sections departments, the practicality is good.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (9)
1. The utility model provides a PIV flow field measuring device in vacuole water section of thick bamboo, includes water section of thick bamboo subassembly (1), and the cross section of water section of thick bamboo subassembly (1) is the rectangle structure, all inlays on the wall all around water section of thick bamboo subassembly (1) and is equipped with glass board, its characterized in that: one glass plate is provided with a supporting device (2), the supporting device (2) penetrates through the glass plate from outside to inside in sequence, an endoscope (3) is vertically arranged on the corresponding glass plate, the outer end head of the endoscope (3) is connected with an external camera through a conversion joint (4), and the inner end head of the endoscope (3) is positioned in liquid in the water barrel assembly (1); the glass plate provided with the supporting device (2) is provided with long grooves (124) which are parallel at intervals, and the length direction of the long grooves (124) is consistent with the length direction of the water cylinder assembly (1);
the supporting device (2) is structured as follows: the glass plate sliding device comprises an inner sliding plate (21) and an outer sliding plate (22) which are respectively installed on the inner side and the outer side of a corresponding glass plate in a sliding mode, the sliding direction of the inner sliding plate (21) and the sliding direction of the outer sliding plate (22) are consistent with the length direction of a long groove (124), and a long bolt (23) penetrates through the outer sliding plate (22), the long groove (124) and the inner sliding plate (21) from outside to inside in sequence; and a pressing frame (24) is also jointly arranged on the outer side surface of the outer sliding plate (22) and the outer side surface of the corresponding glass plate.
2. A PIV flow field measuring device in a cavitation water cylinder as recited in claim 1, wherein: a Glan head is locked between the outer wall surface of the endoscope (3) and the outer sliding plate (22), and the endoscope (3) is axially locked and sealed relative to the outer sliding plate (22) through the Glan head.
3. A PIV flow field measuring device in a cavitation water cylinder as recited in claim 1, wherein: and a sealing ring is also arranged between the inner side surface of the outer sliding plate (22) and the outer side surface of the corresponding glass plate in a pressing way.
4. A PIV flow field measuring device in a cavitation water cylinder as recited in claim 1, wherein: the structure of the water barrel assembly (1) is as follows: the glass plate fixing device comprises a support frame (13) with a cuboid structure, wherein glass plates, a horizontal glass plate (11) with a top surface and a bottom surface, and a front vertical glass plate (12) and a rear vertical glass plate are respectively embedded on four side surfaces of the support frame (13) which are connected end to end;
the support device (2) is mounted on the rear vertical glass pane (12).
5. A PIV flow field measuring device in a cavitation water cylinder as set forth in claim 4, characterized in that: the structure of the vertical glass plate (12) provided with the supporting device (2) is as follows: the plate comprises a plate body (121), wherein an inner groove (122) and an outer groove (123) are respectively formed in the inner side surface and the outer side surface of the plate body (121), and an inner sliding plate (21) and an outer sliding plate (22) are respectively embedded in the inner groove (122) and the outer groove (123); the inner bottom surface of the outer groove (123) is provided with a circumferentially closed sealing groove (125), and the inner bottom surface of the outer groove (123) positioned in the sealing groove (125) is provided with a penetrating long groove (124).
6. A PIV flow field measuring device in a cavitation water cylinder as set forth in claim 5, characterized in that: the lengths of the inner groove (122) and the outer groove (123) in the axial direction of the water barrel assembly (1) are respectively longer than those of the inner sliding plate (21) and the outer sliding plate (22), so that the inner sliding plate (21) and the outer sliding plate (22) respectively move in the inner groove (122) and the outer groove (123) along the axial direction of the water barrel assembly (1).
7. A PIV flow field measuring device in a cavitation water cylinder as set forth in claim 5, characterized in that: the number of the long grooves (124) is three, long bolts (23) penetrate through the two outer long grooves (124), and the endoscope (3) penetrates through the middle long groove (124).
8. A PIV flow field measuring device in a cavitation water cylinder as recited in claim 7, wherein: the inner sliding plate (21) and the outer sliding plate (22) are respectively provided with three through holes (211) from top to bottom corresponding to the long grooves (124), the two through holes (211) on the outer side are used for locking the long bolts (23), and the through hole (211) in the middle part is used for penetrating through the endoscope (3).
9. A PIV flow field measuring device in a cavitation water cylinder as recited in claim 1, wherein: the pressing frame (24) comprises a frame body of a square structure, the frame body is fixedly connected with the outer sliding plate (22), the top ends and the bottom ends of two vertical arms of the frame body respectively extend outwards to form extension arms, the extension arms protrude outwards from the top surface and the bottom surface of the outer sliding plate (22), and the four extension arms are respectively locked with the corresponding glass plates through fasteners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120494577.8U CN214373250U (en) | 2021-03-08 | 2021-03-08 | PIV flow field measuring device in vacuole water drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120494577.8U CN214373250U (en) | 2021-03-08 | 2021-03-08 | PIV flow field measuring device in vacuole water drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214373250U true CN214373250U (en) | 2021-10-08 |
Family
ID=77970452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120494577.8U Active CN214373250U (en) | 2021-03-08 | 2021-03-08 | PIV flow field measuring device in vacuole water drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214373250U (en) |
-
2021
- 2021-03-08 CN CN202120494577.8U patent/CN214373250U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214373250U (en) | PIV flow field measuring device in vacuole water drum | |
| CN210535794U (en) | High-frequency waveguide isolator | |
| CN216028764U (en) | Optical fiber transmission laser welding machine welding head convenient to disassemble and replace | |
| CN213479432U (en) | Pipeline connecting device for water supply and drainage | |
| CN112222605B (en) | Split type friction stir welding stirring head | |
| CN212959407U (en) | Multifunctional base of column | |
| CN211343283U (en) | Air compressor machine connecting device | |
| CN211288521U (en) | Clutch master cylinder of brake system | |
| CN210188999U (en) | Alignment mechanism for piston assembling machine | |
| CN216520232U (en) | Insert formula pipe fitting structure | |
| CN219975886U (en) | Construction safety monitor | |
| CN219142941U (en) | Metering device | |
| CN214663240U (en) | Infrared distance measurement pipeline installation centering instrument | |
| CN216689781U (en) | Integrated house capable of being sealed and assembled | |
| CN212953711U (en) | Assembled steel construction elevator derrick | |
| CN220152829U (en) | Novel carbon fiber heating wallboard | |
| CN217236888U (en) | Pipeline type ultrasonic flowmeter | |
| CN220816191U (en) | Quick-assembling elevator car mortise and tenon fastener | |
| CN220394962U (en) | Beam and upright post connecting structure of frame type curtain wall | |
| CN215568960U (en) | High-strength rubber-lined pipeline | |
| CN219529578U (en) | Combined linear guide rail easy to disassemble and assemble | |
| CN219413913U (en) | Quick dismounting device for water-gas pipeline | |
| CN221351392U (en) | Nondestructive testing equipment for building wall | |
| CN219933259U (en) | Flange rubber joint with sealing assembly | |
| CN218954033U (en) | Hollow shaft magnetic fluid vacuum sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |