CN210623860U - Telescopic bionic groove pipeline fluid characteristic test device - Google Patents
Telescopic bionic groove pipeline fluid characteristic test device Download PDFInfo
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- CN210623860U CN210623860U CN201921369724.8U CN201921369724U CN210623860U CN 210623860 U CN210623860 U CN 210623860U CN 201921369724 U CN201921369724 U CN 201921369724U CN 210623860 U CN210623860 U CN 210623860U
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Abstract
A telescopic bionic groove pipeline fluid characteristic test device comprises: the base and the driving device are fixedly arranged on the supporting plane and comprise a driving motor and a coupler, and an output shaft of the driving motor is connected with a power input shaft of the testing device through the coupler; the water inlet of the test device is communicated with a water outlet pipeline of a telescopic bionic water inlet pipeline of the pipeline system, and the water outlet of the test device is communicated with a pipeline of the water storage device through a water outlet pipeline of the pipeline system; and the pipeline system comprises a telescopic bionic water inlet pipeline and a telescopic bionic water outlet pipeline, wherein the telescopic bionic water inlet pipeline comprises a measuring pipe, a telescopic sleeve and a support frame for supporting the telescopic sleeve. The utility model has the advantages that: the pipeline is convenient to adjust, the length and the height of the pipeline can be adjusted, and the instability of the flow in the pipeline is reduced and the accuracy of the test is improved by adding the bionic groove mode; various data required in the pipeline can be simply and conveniently measured.
Description
Technical Field
The utility model relates to a bionical slot pipeline fluid characteristic test device of retractable.
Background
Fluid machinery is widely applied, and plays an essential role in basic fields such as municipal administration and industry or high-tech fields such as aerospace and aviation. In order to provide fluid machines with appropriate working conditions in various fields, many colleges and universities are engaged in designing fluid machines and testing the fluid machines. The test bench is often assembled by a water tank, pipes and a fluid machine. Fluid machines are various, such as centrifugal pumps, positive displacement pumps, fans, turbines, and the like. Different fluid machinery structures are different, sizes are different, if different test devices are designed and arranged aiming at the test measurement of each fluid machinery, the cost is higher, and manpower and material resources consumed by debugging and installation of test equipment are difficult to estimate. The existing method for adjusting different fluid machinery test devices mainly depends on a hoist, and equipment needs to be hoisted no matter the fluid machinery or a pipeline system is moved, and the equipment is moved to a new position after being spliced. The main disadvantages are complex debugging and high danger coefficient. Meanwhile, any single device in the test system needs to be disassembled or replaced, and all pipeline systems and devices need to be completely disassembled to be assembled and tested again.
For the above reasons, how to simplify the installation and adjustment of the devices and equipment in different testing processes becomes one of the most important rings for simplifying the fluid mechanical testing. The part of the fluid machine to be tested is difficult to simplify because it is the main part to be replaced. The piping system connecting the water tank and the fluid machine is most likely to be structurally modified to achieve simplification of the entire test apparatus. The most important method is that the pipeline system is in a mode of variable length and height, and the design is that the pipeline extends during testing and is connected with a water tank and a testing device; when the fluid machinery needs to be replaced, the pipeline is shortened, the fluid machinery part is replaced, the length and the position of the pipeline are adjusted, and the next round of test and experiment is carried out. In addition, since the line system transports the fluid medium, the adjustment thereof must be designed with consideration given not only to simplicity but also to sealability.
Disclosure of Invention
To the loaded down with trivial details, the high scheduling problem of danger coefficient of debugging that exist among the current fluid machinery test device mentioned in the technical background, the utility model discloses a institutional advancement has designed a bionic slot pipeline fluid characteristic test device of retractable.
A bionic slot pipeline fluid characteristic test device of retractable, a serial communication port, include:
the bottom of the base is arranged on the mounting surface, and the upper part of the base is provided with a supporting plane for loading a test part;
the driving device is fixedly arranged on the supporting plane and comprises a driving motor and a coupler, and an output shaft of the driving motor is connected with a power input shaft of the testing device through the coupler; the water inlet of the test device is communicated with a water outlet pipeline of a telescopic bionic water inlet pipeline of the pipeline system, and the water outlet of the test device is communicated with a pipeline of the water storage device through a water outlet pipeline of the pipeline system;
the pipeline system comprises a telescopic bionic water inlet pipeline and a telescopic bionic water outlet pipeline, wherein the telescopic bionic water inlet pipeline comprises a measuring pipe, a telescopic sleeve and a support frame for supporting the telescopic sleeve, the measuring pipe is provided with a measuring hole along the radial direction, two ends of the measuring pipe are respectively provided with a set of telescopic sleeve, the telescopic sleeve comprises an inner pipe and an outer pipe coaxially sleeved outside the inner pipe, the inner wall of the inner pipe is provided with a bionic groove, the first end of the inner pipe falling outside the outer pipe is used as a telescopic end to be communicated with a water outlet pipeline of the water tank, and the second end of the inner pipe extends into the outer pipe and is in sealing sliding connection with the outer pipe; the first end of the outer pipe is fixedly connected with the end part of the measuring pipe in a sealing way through a flange, so that the inner cavities of the two sets of telescopic sleeves are mutually communicated through the measuring pipe to form a measuring channel; the water inlet of the water outlet pipeline is communicated with the water outlet pipeline of the testing fluid machine, and the water outlet of the water outlet pipeline is communicated with the water storage device pipeline.
The measuring tube and the telescopic sleeves arranged at the two ends of the measuring tube are horizontally coaxial.
The two sets of support frames are respectively supported at the bottoms of the two sets of telescopic sleeves, the two sets of telescopic sleeves are respectively arranged at two ends of the measuring pipe, and the measuring pipe and the telescopic sleeves are kept to be horizontal and coaxial; the support frame comprises a support, a cantilever, a screw rod and a bottom frame, the bottom of the bottom frame is fixedly connected with a support plane, the support frame comprises a support, a cantilever, a screw rod and a bottom frame, the bottom of the bottom frame is fixedly connected with the support plane, a sleeve for inserting the screw rod is arranged at the upper part of the bottom frame, and an internal thread capable of being in threaded connection with the screw rod is arranged in the sleeve; the lower portion of the screw rod is vertically inserted into the sleeve, the thread section of the screw rod is kept in threaded connection with the sleeve, the upper portion of the screw rod is fixedly provided with a cantilever serving as a handle, the top of the screw rod is in threaded connection with a support used for supporting the telescopic sleeve, and the screw rod is driven to rotate around a vertical central shaft through rotating the cantilever so as to drive the support to vertically lift.
The support is a V-shaped support.
The first end of the inner pipe is provided with a connecting flange which is used for being communicated with the water inlet of the water tank in a sealing way, the second end of the inner pipe is provided with a flange which can be matched with the inner wall of the outer pipe, wherein the outer diameter of the connecting flange is larger than the inner diameter of the outer pipe, so that the first end of the inner pipe is ensured to fall outside the outer pipe all the time.
The inner wall surface of the second end part of the outer pipe is circumferentially provided with an annular groove for preventing the second end of the inner pipe from being pulled out of the outer pipe, and an elastic sealing ring is embedded in the annular groove and is always in contact with the wall of the inner pipe so as to ensure that the second end part of the outer pipe is sealed with the wall of the inner cylinder.
In order to solve the problem of complicated procedures when pipelines and equipment are replaced in a fluid mechanical test, the structure design similar to the operating principle of an injector is introduced, and the structure of the pipeline system is made to be telescopic while the sealing performance of the pipeline system is ensured. The telescopic sleeve is composed of an inner pipe and an outer pipe, the pipe diameters of the inner pipe and the outer pipe are almost the same, and the pipe diameter of the outer pipe is slightly larger than that of the inner pipe. The tip of inner tube and the second tip of outer tube do not have flange and the spacing protruding of elasticity, when the pipeline is extended to needs, the pulling inner tube makes the inner tube extend from the outer tube gradually, and the flange of two pipes and the spacing protruding concave convex structure of becoming mutual block to retrain two pipes can not separate, and set up elastic seal circle, the leakproofness of pipeline in outer protruding and interior concave department. After the length of the pipeline is adjusted, the pipeline is mechanically connected with the tested fluid, and the test is started. The middle section of the pipeline is changed into a measuring pipe, which is provided with measuring holes (the measuring holes are spiral holes and can be connected with various instruments) to measure the fluid data in various pipelines and are respectively connected with the telescopic sleeves at the left end and the right end through flanges.
Fluid in the telescopic bionic water inlet pipeline system can cause a little change of flow characteristics due to slight change of pipe diameter and addition of a measuring section, and therefore the structure of the inner wall of the pipeline is improved. The utility model discloses a mode that increases bionical slot. The bionic groove is arranged, so that the near-wall flow mode of fluid in the pipeline can be changed, the thickness of the boundary layer is greatly increased, and the turbulence and the turning crime of the fluid in the boundary layer are inhibited. The thickness of the boundary layer is increased, even if the pipe diameter of the pipeline is slightly changed, the flowing characteristic of fluid in the boundary layer is only influenced, the influence on main flow in the pipeline is reduced, and the accuracy of measuring various data in the test equipment is greatly improved.
Meanwhile, the support frame is improved, the main structure of the support frame is made to be in a lead screw form, the support at the top of the lead screw moves up and down along with the lead screw by rotating the lead screw as a cantilever of the handle, the height of the support can be manually adjusted, and the support is matched and debugged for fluid machines with different heights.
Because most of test devices all need the power source, the motor promptly, so the utility model discloses consider into the position and the regulation of motor. In fact, the motor does not need to be adjusted in position generally, so that the base of the motor is fixed, and the stability of the motor during operation is improved. The distance between the motor and the water tank is usually fixed, since the water tank is usually also a stationary part in the test apparatus. Therefore, even if the size of the fluid machine to be tested is varied, since the length of the pipe system occupying the apparatus is adjustable, the position of the fluid machine to be tested can be fixed. Therefore, the base of the fluid machine is also fixed, similar to the motor, the fluid machine is mostly centrifugal or volume type, and the influence of vibration on the test result when the fluid machine runs can be reduced by adopting the fixed base.
The utility model has the advantages that: the pipeline is convenient to adjust, the length and the height of the pipeline can be adjusted, the flow channel structure of the pipeline is improved to a certain degree, namely, the instability of the flow inside the pipeline is reduced through a mode of adding the bionic grooves, and the accuracy of the test is improved. The middle section of the pipeline is provided with a measuring section, so that various data required in the pipeline can be simply and conveniently measured. Provides space for further development for the design and test work of the fluid machine, and has important engineering practice significance.
Drawings
FIG. 1 is a schematic view of the overall structure of the test apparatus;
FIG. 2 is a schematic view of a piping support structure;
fig. 3 is a schematic cross-sectional view of a biomimetic trench.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
With reference to the accompanying drawings:
embodiment 1 a bionic slot pipeline fluid characteristic test device of retractable, include:
the bottom of the base is arranged on the mounting surface, and the upper part of the base is provided with a supporting plane 16 for loading a test part;
the driving device is fixedly arranged on the supporting plane and comprises a driving motor 15 and a coupler 14, and an output shaft of the driving motor 15 is connected with a power input shaft of the testing device through the coupler 14; the water inlet of the test device is communicated with a water outlet pipeline of a telescopic bionic water inlet pipeline of the pipeline system, and the water outlet of the test device is communicated with a pipeline of the water storage device through a water outlet pipeline of the pipeline system;
the pipeline system comprises a telescopic bionic water inlet pipeline and a telescopic bionic water outlet pipeline, wherein the telescopic bionic water inlet pipeline comprises a measuring pipe 8, telescopic sleeves and a support frame 5 for supporting the telescopic sleeves, measuring holes are formed in the measuring pipe 8 along the radial direction, two ends of the measuring pipe 8 are respectively provided with one telescopic sleeve, each telescopic sleeve comprises an inner pipe 2 and an outer pipe 4 coaxially sleeved outside the inner pipe, the inner wall of the inner pipe 2 is provided with a bionic groove 10, the first end, falling outside the outer pipe 4, of the inner pipe 2 serves as a telescopic end to be communicated with a water outlet pipeline of the water tank, and the second end of the inner pipe 2 extends into the outer pipe 4 and is in sealing sliding connection with the outer pipe 4; the first end of the outer pipe 4 is fixedly connected with the end part of the measuring pipe 8 in a sealing way through a flange 7, so that the inner cavities of the two sets of telescopic sleeves are mutually communicated through the measuring pipe to form a measuring channel; the water inlet of the water outlet pipeline is communicated with the water outlet pipeline of the testing fluid machine, and the water outlet of the water outlet pipeline is communicated with the water storage device pipeline.
The measuring tube 8 and the telescopic sleeves arranged at the two ends of the measuring tube are horizontally coaxial.
The two sets of the support frames 5 are respectively supported at the bottoms of the two sets of the telescopic sleeves, and the two sets of the telescopic sleeves are respectively arranged at the two ends of the measuring tube and keep the measuring tube and the telescopic sleeves horizontally coaxial; the support frame comprises a support 17, a cantilever 18, a screw rod 21 and an underframe 20, the bottom of the underframe 20 is fixedly connected with a support plane 16, a sleeve 19 for inserting the screw rod is arranged at the upper part of the underframe 20, the sleeve 19 is vertical to the support plane, and an internal thread capable of being in threaded connection with the screw rod is arranged in the sleeve 19; the lower part of the screw rod 21 is vertically inserted into the sleeve 19, the thread section of the screw rod is kept to be in threaded connection with the sleeve, a cantilever serving as a handle is fixedly mounted on the upper part of the screw rod, a support for supporting the telescopic sleeve is in threaded connection with the top of the screw rod, and the screw rod is driven to rotate around a vertical central shaft by rotating the cantilever so as to drive the support to vertically lift.
The support is a V-shaped support.
The first end of the inner pipe is provided with a connecting flange which is used for being communicated with the water inlet of the water tank in a sealing way, the second end of the inner pipe is provided with a flange which can be matched with the inner wall of the outer pipe, wherein the outer diameter of the connecting flange is larger than the inner diameter of the outer pipe, so that the first end of the inner pipe is ensured to fall outside the outer pipe all the time.
The inner wall surface of the second end part of the outer pipe is circumferentially provided with an annular groove for preventing the second end of the inner pipe from being pulled out of the outer pipe, and an elastic sealing ring is embedded in the annular groove and is always in contact with the wall of the inner pipe so as to ensure that the second end part of the outer pipe is sealed with the wall of the inner cylinder.
Because the positions and the working principles of the telescopic bionic water inlet pipeline and the telescopic bionic water outlet pipeline are similar, the water inlet pipeline and the water outlet pipeline are only drawn in the figure 1, all the pipe sections of the water inlet pipeline are described, and the mechanisms of length expansion and height adjustment of the water inlet pipeline and the water outlet pipeline are explained. The water inlet pipe section can be divided into a left telescopic pipe section and a right telescopic pipe section, a supporting frame matched with the telescopic pipes and a measuring pipe 8. The measuring tube 8 is communicated with the telescopic sleeve pipelines on the left side and the right side through flanges 7, a spiral hole 9 is formed in the middle of the measuring tube 8, and various measuring instruments and sensors can be installed in the spiral hole 9 to measure and monitor various parameters of fluid in the water inlet pipe section. For example, a pressure gauge can be installed to measure the inlet pressure of the fluid machine, and a flow meter can be installed to measure the flow rate. The left and right telescopic sleeves have the same structure and are only opposite in direction, so that the structure of the telescopic sleeve part on the left side is described, and the working principle of the telescopic sleeve part is explained. The telescopic tube comprises an inner tube 2 and an outer tube 4, wherein a first end part of the inner tube 2 is assembled with a connecting flange 1 which is hermetically communicated with a water inlet of a water tank, a second end part is processed with a flange 6, a second end part of the outer tube 4 is also processed with an annular groove, and the length of the whole telescopic tube is adjusted by adjusting the length of the inner tube in the outer tube in a mode similar to a syringe in the inner tube 2 and the outer tube 4. The flanges of the inner pipe and the outer pipe are processed with annular grooves and are provided with sealing rings 3 to ensure the sealing performance of the pipeline. The connecting flange 1 assembled at the first end of the inner pipe 2 is connected with the water outlet of the water tank, and usually, the left pipe section is connected with the water outlet of the water tank after reaching the maximum length, so that the length adjusting range of the pipeline is the maximum. The right pipe section works in a similar manner to the left pipe section, but differs therefrom in that the right pipe section is connected to the fluid machine, usually after having been extended to a maximum length.
The bionic groove 10 is processed on the inner wall of the pipeline and extracted according to the characteristic parameters of the biological surface structure of the shrimps, and the main structural form of the skin of the shrimps is as follows: the zigzag characteristic is mainly expressed among various flowing concave-convex structures; and then, according to the characteristic structure that the zigzag structure accords with the streamline, the back ridge structure of the peeled shrimp is simplified into the regular triangle convex structure by the bionic principle, and the characteristics of the concave-convex structures accord with the flowing form of the fluid. The biggest effect is to greatly increase the thickness of the boundary layer in the pipeline. The flow in the pipeline basically shows the trend of gradually increasing speed from the pipe wall to the center, and the change of the pipe diameter can cause the change of the flow state of the fluid in the pipe due to the existence of the telescopic inner pipe and the telescopic outer pipe. The bionic grooves 10 increase the thickness of the boundary layer, inhibit the influence of the pipe diameter change on the flow of the main flow in the pipe, control the influence in the boundary layer, and reduce the influence of the pipe diameter change on various parameters of the fluid in the pipe to the maximum extent.
The structure and the working principle of the pipeline bracket are explained by combining fig. 2, and the supporting frame consists of a bracket 17, a cantilever 18, a lead screw 19 and a base 20. A set of support frame is respectively arranged between two sets of telescopic sleeves and a support plane, the support frame 17 is supported at the bottom of an outer pipe of the telescopic sleeves, the main body of the support frame is of a lead screw structure, a lead screw 19 moves up and down along a sleeve of an underframe through rotating a cantilever 18 to adjust the height of the whole pipe section, and the support frame is fixed on a support table 16 through a base 20.
When the test device normally runs, the telescopic pipelines are all in the longest state, after a stage of test is finished, when the fluid machinery needs to be replaced, the flange plate of the right pipe section connected with the fluid machinery is opened, the telescopic pipelines of the right pipe section are shortened, the fluid machinery is removed, the new fluid machinery to be tested is replaced, the length of the right pipe section is adjusted to be proper, and the new test can be started through flange connection.
The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, and the scope of the invention should not be considered limited to the specific forms set forth in the embodiments, but rather the scope of the invention includes equivalent technical means that can be conceived by those skilled in the art based on the inventive concepts.
Claims (6)
1. The utility model provides a bionical slot pipeline fluid characteristic test device of retractable which characterized in that includes:
the bottom of the base is arranged on the mounting surface, and the upper part of the base is provided with a supporting plane for loading a test part;
the driving device is fixedly arranged on the supporting plane and comprises a driving motor and a coupler, and an output shaft of the driving motor is connected with a power input shaft of the testing device through the coupler; the water inlet of the test device is communicated with a water outlet pipeline of a telescopic bionic water inlet pipeline of the pipeline system, and the water outlet of the test device is communicated with a pipeline of the water storage device through a water outlet pipeline of the pipeline system;
the pipeline system comprises a telescopic bionic water inlet pipeline and a telescopic bionic water outlet pipeline, wherein the telescopic bionic water inlet pipeline comprises a measuring pipe, a telescopic sleeve and a support frame for supporting the telescopic sleeve, the measuring pipe is provided with a measuring hole along the radial direction, two ends of the measuring pipe are respectively provided with a set of telescopic sleeve, the telescopic sleeve comprises an inner pipe and an outer pipe coaxially sleeved outside the inner pipe, the inner wall of the inner pipe is provided with a bionic groove, the first end of the inner pipe falling outside the outer pipe is used as a telescopic end to be communicated with a water outlet pipeline of the water tank, and the second end of the inner pipe extends into the outer pipe and is in sealing sliding connection with the outer pipe; the first end of the outer pipe is fixedly connected with the end part of the measuring pipe in a sealing way through a flange, so that the inner cavities of the two sets of telescopic sleeves are mutually communicated through the measuring pipe to form a measuring channel; the water inlet of the water outlet pipeline is communicated with the water outlet pipeline of the testing fluid machine, and the water outlet of the water outlet pipeline is communicated with the water storage device pipeline.
2. The device for testing the fluid characteristics of the telescopic bionic groove pipeline as claimed in claim 1, wherein: the measuring tube and the telescopic sleeves arranged at the two ends of the measuring tube are horizontally coaxial.
3. The device for testing the fluid characteristics of the telescopic bionic groove pipeline as claimed in claim 1, wherein: the support frame comprises a support, a cantilever, a screw rod and a bottom frame, the bottom of the bottom frame is fixedly connected with a support plane, a sleeve for inserting the screw rod is arranged at the upper part of the bottom frame, and an internal thread capable of being in threaded connection with the screw rod is arranged in the sleeve; the lower portion of the screw rod is vertically inserted into the sleeve, the thread section of the screw rod is kept in threaded connection with the sleeve, the upper portion of the screw rod is fixedly provided with a cantilever serving as a handle, the top of the screw rod is in threaded connection with a support used for supporting the telescopic sleeve, and the screw rod is driven to rotate around a vertical central shaft through rotating the cantilever so as to drive the support to vertically lift.
4. The device for testing the fluid characteristics of the telescopic bionic groove pipeline as claimed in claim 3, wherein: the support is a V-shaped support.
5. The device for testing the fluid characteristics of the telescopic bionic groove pipeline as claimed in claim 1, wherein: the first end of the inner pipe is provided with a connecting flange which is used for being communicated with the water inlet of the water tank in a sealing way, the second end of the inner pipe is provided with a flange which can be matched with the inner wall of the outer pipe, wherein the outer diameter of the connecting flange is larger than the inner diameter of the outer pipe, so that the first end of the inner pipe is ensured to fall outside the outer pipe all the time.
6. The device for testing the fluid characteristics of the telescopic bionic groove pipeline as claimed in claim 1, wherein: the inner wall surface of the second end part of the outer pipe is circumferentially provided with an annular groove for preventing the second end of the inner pipe from being pulled out of the outer pipe, and an elastic sealing ring is embedded in the annular groove and is always in contact with the wall of the inner pipe so as to ensure that the second end part of the outer pipe is sealed with the wall of the inner cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921369724.8U CN210623860U (en) | 2019-08-22 | 2019-08-22 | Telescopic bionic groove pipeline fluid characteristic test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921369724.8U CN210623860U (en) | 2019-08-22 | 2019-08-22 | Telescopic bionic groove pipeline fluid characteristic test device |
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| Publication Number | Publication Date |
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| CN210623860U true CN210623860U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921369724.8U Active CN210623860U (en) | 2019-08-22 | 2019-08-22 | Telescopic bionic groove pipeline fluid characteristic test device |
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| CN (1) | CN210623860U (en) |
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2019
- 2019-08-22 CN CN201921369724.8U patent/CN210623860U/en active Active
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