CN111504601A - Adjustable fluid uniform flow experiment platform - Google Patents
Adjustable fluid uniform flow experiment platform Download PDFInfo
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- CN111504601A CN111504601A CN202010452051.3A CN202010452051A CN111504601A CN 111504601 A CN111504601 A CN 111504601A CN 202010452051 A CN202010452051 A CN 202010452051A CN 111504601 A CN111504601 A CN 111504601A
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- 238000002474 experimental method Methods 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 31
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- 239000011521 glass Substances 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 5
- 229910052755 nonmetal Inorganic materials 0.000 claims description 5
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- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims 1
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- 239000007788 liquid Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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Abstract
The invention provides an adjustable fluid uniform flow experiment platform, wherein two stages of pipeline components are arranged in the experiment platform, the diameter, the material and the length of each stage of pipeline component are the same, the length is slightly smaller than the distance between fixing plates 13 at two sides, the two stages of pipeline components are both in a regular triangle pile-through mode, the diameter of a first stage pipeline component 2 is larger than that of a second stage pipeline component 3, the specific diameters of the two stages of pipeline components can be adjusted according to experiment precision and experiment requirements, and in order to keep the flow stability of a test area 4, an upstream component and a downstream component of the test area 4 are completely symmetrical.
Description
Technical Field
The invention relates to the technical fields of ocean engineering, chemical machinery, hydromechanics and the like, in particular to an adjustable fluid uniform fluid experimental platform.
Background
In the fields of chemical machinery, ocean engineering and the like, performance parameters such as power, thrust, resistance and the like of underwater operation equipment in a flowing water area are often required to be tested. Because of the limit of experimental conditions, the equipment is often tested in still water, the measured data is checked by using an empirical coefficient, and the obtained data is approximated to data in a moving domain. The data obtained by the method has poor reliability and low precision. In recent years, many scientific research institutes begin to design uniform flow experimental devices, and most of the experimental devices have the defects of large resistance, high non-uniformity of flow speed, inconvenient assembly disassembly and the like.
The invention designs an adjustable fluid uniform flow experimental device, which adopts multi-stage pipeline sections with different diameters as inner members, each group of members is formed by stacking pipelines with the same diameter, and the adjustable fluid uniform flow experimental device has the advantages of simple structural form, convenience in component preparation and capability of installing components with different pipe diameters according to different precision requirements.
Disclosure of Invention
The invention aims to provide an adjustable fluid uniform flow experiment platform, wherein a part for homogenizing fluid flow in the experiment platform is composed of pipelines with different diameters, and the diameters of the pipelines can be changed or adjusted at any time according to the conditions of flow rate, fluid unevenness precision requirements and the like so as to achieve the purpose of uniform flow of fluid.
The technical scheme of the invention is as follows:
an adjustable fluid uniform flow experiment platform is composed of a circulating water tank 1, a primary pipeline assembly 2, a secondary pipeline assembly 3, a test area 4, a secondary symmetrical pipeline assembly 5, a primary symmetrical pipeline assembly 6, a buffer area 7, a symmetrical buffer area 8, a baffling area 9, a symmetrical baffling area 10, a grid plate 11, a symmetrical grid plate 12, a fixing plate 13, a circulating water pump 14, a valve 15, a flowmeter 16 and a circulating pipe 17. Water enters the buffer zone 7 from the baffling zone 9 through the grid plate 11, sequentially passes through the primary pipeline assembly 2 and the secondary pipeline assembly 3 to reach the test zone 4, the fluid in the test zone 4 flows uniformly, and is a zone for placing experimental devices, in order to ensure the stability of uniform flow of the fluid, after the test zone 4, the water sequentially passes through the secondary symmetrical pipeline assembly 5, the primary symmetrical pipeline assembly 6, the symmetrical buffer zone 8 and the symmetrical grid plate 12, and finally reaches the symmetrical baffling zone 10, a circulating water pump 14 is arranged in the symmetrical baffling zone 10, the fluid is powered by the circulating water pump 14, passes through the circulating pipe 17 and returns to the baffling zone 9, and the circulating flow of the water is formed.
The circulating water tank 1 is an open rectangular tank and is formed by bonding transparent organic glass, the cross section of the circulating water tank is rectangular except the baffling areas 9 and the symmetrical baffling areas 10, the width and height average range of the rectangle is within 0.5-2m, and the circulating water tank is determined according to the size of a test instrument placed in the test area 4.
One-level pipeline assembly 2 constitute by the pipeline that equals length, same diameter, the material can be stainless steel, carbon steel, also can be organic glass etc. one-level pipeline assembly 2's both ends are fixed by fixed plate 13, one-level pipeline assembly 2's length slightly is less than the interval of both sides fixed plate 13.
The second-stage pipeline assembly 3 is composed of pipelines with the same length and the same diameter, the material is not limited, the pipelines can be metal or nonmetal pipelines, the diameter of the second-stage pipeline assembly 3 is smaller than that of the first-stage pipeline assembly 2, two ends of the second-stage pipeline assembly 3 are fixed by the fixing plates 13, and the length of the second-stage pipeline assembly 3 is slightly smaller than the distance between the fixing plates 13 on two sides.
The test area 4 is a test area for measuring devices, and the devices can be placed on the bottom surface or suspended in the liquid, and no other components are placed inside the devices.
The second-stage symmetrical pipeline component 5 is composed of pipelines with the same length and diameter, the length and the diameter of the second-stage symmetrical pipeline component are completely the same as those of the second-stage component 3, and the placing position of the second-stage symmetrical pipeline component is symmetrical to that of the second-stage pipeline component 3 relative to the test area 4.
The first-stage symmetrical pipeline assembly 6 is composed of pipelines with the same length and the same diameter, the length and the diameter of the first-stage symmetrical pipeline assembly are completely the same as those of the first-stage pipeline assembly 2, and the placement position of the first-stage symmetrical pipeline assembly is symmetrical to that of the first-stage pipeline assembly 2 relative to the test area 4.
The grid plate 11 is made of transparent organic glass, and the organic glass plate is made by forming strip-shaped holes and is bonded with the circulating water tank 1.
The symmetrical grid plate 12 is the same as the grid plate 11 in material, structure and connection mode with the circulating water tank 1, and the installation positions of the symmetrical grid plate 12 and the grid plate 11 are symmetrical relative to the circulating water tank 1.
The baffling area 9 and the symmetrical baffling area 10 have the same volume, and the change of the fluid flowing direction is realized by an inclined plate.
The power of the circulating water pump 14 is selected according to different flow resistances and different flow rates generated by different placing component sets.
The flow rate in the test section 4 is controlled by adjusting a valve 15 and a flow meter 16 installed on a circulation pipe 17.
The fixed plate 13 is a plurality of rectangular plates made of organic glass and is connected with the circulating water tank 1 through adhesion.
The invention has the innovation point that an adjustable fluid uniform flow experiment platform is developed, the fluid flow uniformity in a test area is adjusted by replacing or adjusting the diameters of a primary pipeline assembly and a secondary pipeline assembly, and the adjustable fluid uniform flow experiment platform has the characteristics of simple form, convenience for replacing components and wide applicable flow speed range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of an example of the present application
FIG. 2 is a diagram of a primary pipe assembly in an example of the present application
FIG. 3 is a diagram of a secondary duct assembly in an example of the present application
FIG. 4 is a view showing the structure of a grid plate in the example of the present application
FIG. 5 is a view showing a structure of a fixing plate in the example of the present application
In the figures 1-5, 1 is a circulating water tank, 2 is a primary pipeline assembly, 3 is a secondary pipeline assembly, 4 is a test area, 5 is a secondary symmetrical pipeline assembly, 6 is a primary symmetrical pipeline assembly, 7 is a buffer area, 8 is a symmetrical buffer area, 9 is a flow-breaking area, 10 is a symmetrical flow-breaking area, 11 is a grid plate, 12 is a symmetrical grid plate, 13 is a fixed plate, 14 is a circulating water pump, 15 is a valve, 16 is a flow meter, 17 is a circulating pipe
Detailed Description
The adjustable fluid uniform flow experiment platform provided by the invention has the advantages that the four areas for placing the components are fixed through the fixing plate, pipe sections with certain lengths and the same diameter are placed in the areas, wherein the pipe diameter of the secondary pipeline component is smaller than that of the primary pipeline component, so that the fluid flow is refined and homogenized layer by layer, the diameters of the primary and secondary pipeline components can be increased or decreased to meet the requirements of different flow rates and different fluid uniformity, but the diameters, the lengths, the materials and the like of the secondary symmetrical pipeline component and the secondary pipeline component are completely the same, and the diameters, the lengths, the materials and the like of the primary symmetrical pipeline component and the primary pipeline component are completely the same.
The adjustable fluid uniform flow experiment platform provided by the invention has the advantages of convenience in replacing the assembly, simple assembly structure and flexibility and convenience in use.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 5, an adjustable fluid uniform flow experiment platform comprises a circulating water tank 1, a primary pipeline assembly 2, a secondary pipeline assembly 3, a test area 4, a secondary symmetrical pipeline assembly 5, a primary symmetrical pipeline assembly 6, a buffer area 7, a symmetrical buffer area 8, a baffling area 9, a symmetrical baffling area 10, a grid plate 11, a symmetrical grid plate 12, a fixed plate 13, a circulating water pump 14, a valve 15, a flow meter 16 and a circulating pipe 17. After the direction of the fluid is changed from the deflection area 9, the fluid firstly enters the buffer area 7 through the grid plate 11, then sequentially passes through the primary pipeline assembly 2 and the secondary pipeline assembly 3 from the buffer area 7 to reach the test area 4, the test area 4 is an area for placing a part or equipment to be tested, the fluid sequentially enters the secondary symmetrical pipeline assembly 5 and the primary symmetrical pipeline assembly 6 from the test area 4 to reach the symmetrical buffer area 8, then passes through the symmetrical grid plate 12 to reach the symmetrical deflection area 10, and then is pumped into the deflection area 9 through the circulating water pump 14 to complete the circulation of the fluid.
The cross section of the open water tank of the circulating water tank 1 is rectangular except the baffling area 9 and the symmetrical baffling area 10, the length size of the open water tank is far larger than the width and the height of the cross section, and the open water tank is made of transparent organic glass through bonding.
The first-stage pipeline assembly 2 is formed by stacking horizontal pipes with the same length and the same diameter in a regular triangle arrangement mode, metal pipelines or non-metal pipelines can be selected, and the length of the pipelines is slightly smaller than the distance between the fixing plates 13 on the two sides.
The secondary pipeline assembly 3 is formed by stacking horizontal pipes with the same length and the same diameter in a regular triangle arrangement mode, metal pipelines or non-metal pipelines can be selected, the length of the pipelines is slightly smaller than the distance between the fixing plates 13 on the two sides, and the diameter of the secondary pipeline assembly 3 is smaller than that of the primary pipeline assembly 2.
The test area 4 is a placement area for a device or equipment to be tested, and the fluid in the area is fluid with equal speed and consistent direction.
Wherein, the pipeline diameter, length, material of second grade symmetrical pipeline subassembly 5 and second grade pipeline subassembly 3 are the same completely, and the mounted position is symmetrical for experimental district 4.
Wherein, the pipeline diameter, length, material of one-level symmetrical pipeline subassembly 6 and one-level pipeline subassembly 2 are the same completely, and the mounted position is symmetrical for experimental district 4.
Wherein, the fixing plate 13 is composed of a plurality of rectangular strip-shaped plates and is connected with the circulating water tank 1 through adhesion.
Wherein, the grid plate 11 and the symmetrical grid plate 12 are supported by a strip-shaped hole on an organic glass flat plate, and are connected with the circulating water tank 1 by bonding, and the positions of the two are symmetrical relative to the test area 4.
Wherein, the deflection area 9 and the symmetrical deflection area 10 realize the diversion of the fluid through an inclined plate.
The flow rate of the test zone 4 is obtained by adjusting the valve 15 and combining the flow meter 16 readings.
Best mode for carrying out the invention
The length, width and height of the circulating water tank are 8000mm, 800mm and 1000mm respectively, 5 x 500 strip-shaped holes are formed in the grid plate, the diameter of the primary pipeline component is 20mm, the length of the primary pipeline component is 500mm, the diameter of the secondary pipeline component is 8mm, the length of the secondary pipeline component is 500mm, the flow rate of fluid in the circulating pipe is 1000L/s, the water filling liquid level in the circulating water tank is 800mm, the average flow rate of fluid at 20 different points in the measurement test area is 1.56m/s, and the unevenness of the fluid speed is less than 0.002.
Best mode for carrying out the invention
The length, width and height of the circulating water tank are 8000mm, 1000mm and 1000mm respectively, 5 x 500 strip-shaped holes are formed in the grid plate, the diameter of the primary pipeline assembly is 18mm, the length of the primary pipeline assembly is 500mm, the diameter of the secondary pipeline assembly is 5mm, the length of the secondary pipeline assembly is 500mm, the flow rate of fluid in the circulating pipe is 600L/s, the water filling liquid level in the circulating water tank is 800mm, the average flow rate of fluid at 20 different points of the measurement test area is 0.75m/s, and the unevenness of the fluid speed is less than 0.0025.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. An adjustable fluid uniform flow experiment platform comprises a circulating water tank 1, a primary pipeline assembly 2, a secondary pipeline assembly 3, a test area 4, a secondary symmetrical pipeline assembly 5, a primary symmetrical pipeline assembly 6, a buffer area 7, a symmetrical buffer area 8, a baffling area 9, a symmetrical baffling area 10, a grid plate 11, a symmetrical grid plate 12, a fixing plate 13, a circulating water pump 14, a valve 15, a flowmeter 16 and a circulating pipe 17. After the direction of the fluid is changed from the deflection area 9, the fluid firstly enters the buffer area 7 through the grid plate 11, then sequentially passes through the primary pipeline assembly 2 and the secondary pipeline assembly 3 from the buffer area 7 to reach the test area 4, the test area 4 is an area for placing a part or equipment to be tested, the fluid sequentially enters the secondary symmetrical pipeline assembly 5 and the primary symmetrical pipeline assembly 6 from the test area 4 to reach the symmetrical buffer area 8, then passes through the symmetrical grid plate 12 to reach the symmetrical deflection area 10, and then is pumped into the deflection area 9 through the circulating water pump 14 to complete the circulation of the fluid.
2. The adjustable experimental platform for uniform fluid flow according to claim 1, wherein the circulating water tank 1 is an open water tank, except for the baffling region 9 and the symmetrical baffling regions 10, the cross section of the water tank is rectangular, the length of the water tank is far greater than the width and height of the cross section, and the water tank is made of transparent organic glass through bonding.
3. The adjustable fluid uniform flow experiment platform as claimed in claim 1, wherein the primary pipe assembly 2 is formed by stacking horizontal pipes with the same length and the same diameter, the stacking mode is a regular triangle arrangement, and a metal pipe or a non-metal pipe can be selected, and the length of the pipe is slightly smaller than the distance between the fixing plates 13 at two sides.
4. The adjustable experimental platform for uniform fluid flow according to claim 1, wherein the secondary pipe assembly 3 is formed by stacking horizontal pipes with the same length and the same diameter, the stacking mode is a regular triangle arrangement, metal pipes or non-metal pipes can be selected, the length of the pipes is slightly smaller than the distance between the fixing plates 13 on two sides, and the diameter of the secondary pipe assembly 3 is smaller than that of the primary pipe assembly 2.
5. The adjustable fluid uniform flow experiment platform according to claim 1, wherein the diameters, lengths and materials of the pipelines of the secondary symmetrical pipeline assembly 5 and the secondary pipeline assembly 3 are completely the same, and the installation positions are symmetrical relative to the test area 4.
6. The adjustable type experiment platform for uniform fluid flow as claimed in claim 1, wherein the primary symmetrical pipe assembly 6 and the primary pipe assembly 2 have the same pipe diameter, length and material, and the installation positions are symmetrical relative to the test area 4.
7. The adjustable experimental platform for uniform fluid flow according to claim 1, wherein the fixing plate 13 is formed by a plurality of rectangular strips, and is bonded with the circulating water tank 1.
8. The adjustable experimental platform for uniform fluid flow according to claim 1, wherein the grid plate 11 and the symmetrical grid plate 12 are supported by a plexiglass plate with strip-shaped holes thereon, and are connected with the circulating water trough 1 by gluing, and the two positions are symmetrical relative to the experimental area 4.
9. The adjustable experimental platform for uniform fluid flow according to claim 1, wherein the deflection zone 9 and the symmetrical deflection zone 10 are both turned by an inclined plate; the flow rate level in test zone 4 is obtained by adjusting valve 15 in conjunction with the flow meter 16 reading.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010452051.3A CN111504601A (en) | 2020-05-25 | 2020-05-25 | Adjustable fluid uniform flow experiment platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010452051.3A CN111504601A (en) | 2020-05-25 | 2020-05-25 | Adjustable fluid uniform flow experiment platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834167A (en) * | 2021-03-19 | 2021-05-25 | 中国海洋大学 | Simulation experiment circulating water tank |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848884A (en) * | 2015-05-26 | 2015-08-19 | 浙江大学 | Device and method for testing sensor performance of gas flow rate, temperature and humidity |
| CN204564374U (en) * | 2015-02-04 | 2015-08-19 | 西南交通大学 | With the nozzle big gun bar of rectifying tube |
| CN204612895U (en) * | 2015-06-01 | 2015-09-02 | 三峡大学 | A kind of small-sized flow field simulation tank |
| CN206488825U (en) * | 2017-01-20 | 2017-09-12 | 新奥科技发展有限公司 | Fairing |
| CN107894178A (en) * | 2017-03-21 | 2018-04-10 | 山东大学 | A kind of constant-current stabilizer spacing becomes the heat exchanger of big condensable gas |
| CN109506881A (en) * | 2018-10-11 | 2019-03-22 | 天津大学 | A kind of channel flow field simulation experiment method |
| CN111044257A (en) * | 2019-12-30 | 2020-04-21 | 河北工业大学 | Rectifying device for water tunnel or water tank |
| CN111190025A (en) * | 2020-01-09 | 2020-05-22 | 哈尔滨工程大学 | Comprehensive gas-liquid two-phase flow test experimental device |
-
2020
- 2020-05-25 CN CN202010452051.3A patent/CN111504601A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204564374U (en) * | 2015-02-04 | 2015-08-19 | 西南交通大学 | With the nozzle big gun bar of rectifying tube |
| CN104848884A (en) * | 2015-05-26 | 2015-08-19 | 浙江大学 | Device and method for testing sensor performance of gas flow rate, temperature and humidity |
| CN204612895U (en) * | 2015-06-01 | 2015-09-02 | 三峡大学 | A kind of small-sized flow field simulation tank |
| CN206488825U (en) * | 2017-01-20 | 2017-09-12 | 新奥科技发展有限公司 | Fairing |
| CN107894178A (en) * | 2017-03-21 | 2018-04-10 | 山东大学 | A kind of constant-current stabilizer spacing becomes the heat exchanger of big condensable gas |
| CN109506881A (en) * | 2018-10-11 | 2019-03-22 | 天津大学 | A kind of channel flow field simulation experiment method |
| CN111044257A (en) * | 2019-12-30 | 2020-04-21 | 河北工业大学 | Rectifying device for water tunnel or water tank |
| CN111190025A (en) * | 2020-01-09 | 2020-05-22 | 哈尔滨工程大学 | Comprehensive gas-liquid two-phase flow test experimental device |
Non-Patent Citations (2)
| Title |
|---|
| 高峰: "深水重力式水下分离器系统关键技术及试验研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑 (月刊)》, no. 08, 15 August 2018 (2018-08-15), pages 70 - 71 * |
| 高建强等: "CR整流格栅高度与催化剂安装耦合影响分析", 《中国电力》, vol. 52, no. 4, 30 April 2019 (2019-04-30), pages 144 - 150 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834167A (en) * | 2021-03-19 | 2021-05-25 | 中国海洋大学 | Simulation experiment circulating water tank |
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