CN203287054U - Experiment table enabling Pitot tube to be adjusted to measuring point conveniently and accurately - Google Patents
Experiment table enabling Pitot tube to be adjusted to measuring point conveniently and accurately Download PDFInfo
- Publication number
- CN203287054U CN203287054U CN2013203535023U CN201320353502U CN203287054U CN 203287054 U CN203287054 U CN 203287054U CN 2013203535023 U CN2013203535023 U CN 2013203535023U CN 201320353502 U CN201320353502 U CN 201320353502U CN 203287054 U CN203287054 U CN 203287054U
- Authority
- CN
- China
- Prior art keywords
- pitot tube
- measuring point
- accurately
- base
- experiment table
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses an experiment table enabling a Pitot tube to be adjusted to a measuring point conveniently and accurately, and belongs to the technical field of fluid measurement instruments. The experiment table enabling the Pitot tube to be adjusted to the measuring point conveniently and accurately comprises a coordinate frame, a base, the Pitot tube and a test section, a fan is arranged inside the base, the test section is fixedly connected on the table face of the base, the fan is connected with the bottom end of the test section through an air channel, the base is provided with a sliding rail, a sliding block matched with the sliding rail is fixedly connected at the bottom end of the coordinate frame, the sliding block is connected with the sliding rail in a sliding mode, and the coordinate frame slides in the length direction of the slide rail along with the sliding block. A cross rod of the coordinate frame is sleeved with a clamp in a sliding mode, the clamp clamps the Pitot tube, and the Pitot tube slides in the length direction of the cross rod along with the clamp. According to the experiment table enabling the Pitot tube to be adjusted to the measuring point conveniently and accurately, when flow velocity and flow of fluid are measured, the Pitot tube can be moved to an assigned measuring point conveniently and accurately, experiment operation is made to be more convenient and fast, and experiment data are more accurate.
Description
Technical field
The utility model belongs to the fluid measurement Instrument technology field, more particularly, relates to a kind of convenience and accurately regulates the experiment table of Pitot tube to measuring point.
Background technology
Rate of flow of fluid and flow are the important parameters of fluid, and our life, environmental protection, science and technology and engineering had important using value.
The flow velocity of measurement fluid and the method for flow are a lot, normal Hydrodynamic Generalized Test-Stand meter fluid operator flow velocity and the flow of adopting in the rate of flow of fluid experiments of measuring of school.Its computing formula is
P wherein
0: total head energy, i.e. total pressure, N/m
2P: static energy, i.e. static pressure, N/m
2ρ: fluid density, Kg/m
3What during experiment, Pitot tube recorded is the speed of certain point,, in order to determine the average velocity on certain cross section, this cross section must be divided into some parts, measures the speed of each part, and then asks its mean value:
After trying to achieve mean flow rate,, according to the size of sectional area F, can try to achieve flow: Q=V
All* F; Make Pitot tube arrive the appointment measuring point by the moving coordinate frame in test and measure the total head energy P of this point
0With static energy P.But during experiment, the experimenter can only be by range estimation, the moving coordinate frame of manual mode machinery makes Pitot tube to specifying measuring point, moves very trouble, also can't accurately Pitot tube be moved to the point position of appointment, experimental implementation is got up bother very much, expended a large amount of experimental periods; And due to can not accurately mobile Pitot tube to specifying measuring point, make the total head energy P that measures
0Produce larger error with static energy P, also affected the flow velocity that calculates and the degree of accuracy of flow; Make troubles for people's experiment, can not meet people's experiment demand, this problem has to be solved.
Find by retrieval, China Patent No.: ZL92207417.8, the day for announcing is on November 4th, 1992, invention and created name is: Combined liquid flow admeasuring apparatus, be provided with tensimeter on the opening of this application case on threeway, below opening establish the other end externally threaded conduit arranged, the conduit other end that is connected with the threeway horizontal opening is connected with the horizontal opening of gauge head, this have three of upper and lower, levels each other the opening above the gauge head of the openings of connection be provided with a pressure gauge; Although this application case can simply be measured flow and the flow velocity of the fluid in force pipe, but be difficult for being applied to measure the rate of flow of fluid of the larger gas pipeline mouth of pipe place each point of sectional area, can not measure accurately the gas flow at gas pipeline mouth of pipe place simultaneously.
The utility model content
1. the utility model technical matters that will solve
The purpose of this utility model solves in prior art exactly, the general fluid mechanics synthetic experiment bench is when measuring rate of flow of fluid and flow, can not facilitate accurately mobile Pitot tube to the problem of specifying measuring point, provide a kind of convenience accurately to regulate the experiment table of Pitot tube to measuring point, to solve above deficiency, the convenient use.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
A kind of convenience of the present utility model is accurately regulated the experiment table of Pitot tube to measuring point, comprise frame of axes, base, Pitot tube and test section, base inside is provided with blower fan, be fixed with test section on the base table top, blower fan is connected with the test section bottom by air channel, is provided with slide rail on described base, and the frame of axes bottom is fixed with the slide block that matches with slide rail, and this slide block and slide rail are slidably connected, and frame of axes slides with the length direction of slide block along slide rail; The cross bar slip cap of above-mentioned frame of axes is connected to clip, and on this clip, clamping has Pitot tube, and Pitot tube slides with the length direction of clip along cross bar.The utility model slides along the slide rail length direction by regulating frame of axes, regulates the length direction slip of clip along cross bar, can realize that mobile Pitot tube is measured to specifying easily, the convenient experiment.
Further improve as of the present utility model, described slide rail left side is parallel is provided with the Y-direction rule, and is provided with the directions X rule on the cross bar surface.The utility model slide rail left side is provided with the Y-direction rule, and the cross bar surface is provided with the directions X rule, and operator's mobile Pitot tube exactly measures to specifying.
Further improve as of the present utility model, the zero graduation of described Y-direction rule is arranged at rule central authorities, and the scale size increases progressively to two ends.
Further improve as of the present utility model, be provided with trip bolt on described clip.Be provided with trip bolt on the utility model clip, clip can be fixed after making clip move to assigned address together with Pitot tube, prevent from moving in experimentation.
3. beneficial effect
The technical scheme that adopts the utility model to provide, compare with existing known technology, has following beneficial effect:
(1) a kind of convenience of the present utility model is accurately regulated the experiment table of Pitot tube to measuring point, because the frame of axes bottom is slidably matched by slide block and slide rail, on the cross bar of frame of axes, slip cap then accompanies the clip of Pitot tube, slide along the slide rail length direction by regulating frame of axes, regulate the length direction slip of clip along cross bar, can realize that mobile Pitot tube is measured to specifying easily, for experiment is provided convenience;
(2) a kind of convenience of the present utility model is accurately regulated the experiment table of Pitot tube to measuring point, and the slide rail left side is provided with the Y-direction rule, and the cross bar surface is provided with the directions X rule, and operator's mobile Pitot tube accurately measures to specifying, and improves the experiment degree of accuracy;
(3) a kind of convenience of the present utility model is accurately regulated the experiment table of Pitot tube to measuring point, the zero graduation of Y-direction rule is arranged at rule central authorities, and the scale size increases progressively to two ends, and the operator is take this zero graduation as basic point, for experimental calculation and measurement are provided convenience;
(4) a kind of convenience of the present utility model is accurately regulated the experiment table of Pitot tube to measuring point, because clip is provided with trip bolt, after Pitot tube being moved to the appointment measuring point, can tighten trip bolt Pitot tube is fixed on point position, prevent from making experiment more accurate because the accidental movement frame of axes affects experimental data.
Description of drawings
Fig. 1 is that a kind of convenience of the present utility model is accurately regulated the one-piece construction schematic diagram of Pitot tube to the experiment table of measuring point;
Fig. 2 measures the fundamental diagram of flow velocity by Pitot tube and many inclined-tube manometers.
Label declaration in schematic diagram:
1, frame of axes; 2, base; 3, slide rail; 4, test section; 5, Y-direction rule; 6, slide block; 7, cross bar; 8, clip; 9, air channel; 10, Pitot tube; 11, blower fan; 12, trip bolt; 13, many inclined-tube manometers.
Embodiment
Below in conjunction with embodiment and Figure of description, the utility model is described in detail.
In conjunction with Fig. 1 and Fig. 2, a kind of convenience of the present embodiment is accurately regulated the experiment table of Pitot tube to measuring point, comprises frame of axes 1, base 2, Pitot tube 10 and test section 4, and base 2 inside are provided with blower fan 11, be fixed with test section 4 on base 2 table tops, blower fan 11 is connected with test section 4 bottoms by air channel 9.
Be provided with slide rail 3 on the base 2 of the present embodiment, frame of axes 1 bottom is fixed with the slide block 6 that matches with slide rail 3, and this slide block 6 is slidably connected with slide rail 3, and frame of axes 1 can slide along slide rail 3 length directions with slide block 6; On the cross bar 7 of frame of axes 1, slip cap is connected to clip 8, on this clip 8, clamping has Pitot tube 10, when regulating Pitot tube 10 height, first unclamps clip 8, transfer again Pitot tube 10 height to appropriate location, and Pitot tube 10 can slide with the length direction of clip 8 along cross bar 7; By regulating the length direction slip of frame of axes 1 along slide rail 3, regulate the length direction slip of clip 8 along cross bar 7, can realize that mobile Pitot tube 10 is measured to specifying easily, for experiment is provided convenience.
The present embodiment slide rail 3 left sides are provided with Y-direction rule 5 abreast, and the zero graduation of Y-direction rule 5 is arranged at rule central authorities, and the scale size increases progressively to these ruler two ends, the operator is take this zero graduation as basic point, provide convenience for experimenter's experimental calculation and measurement, also facilitate the user to operate; And cross bar is provided with the directions X rule on 7 surfaces, and the zero graduation of this rule is concordant with the end of cross bar 7, and operator's mobile Pitot tube 10 exactly measures to specifying, and improves the experiment degree of accuracy.
During use, at first adjust many inclined-tube manometer 13 levels, and the top of Pitot tube 10 is connected (as shown in Figure 2) with many inclined-tube manometers 13 by sebific duct, and opens blower fan 11 switches, during concrete experiment, many inclined-tube manometers 13 of employing are combined by a plurality of inclined-tube manometers; Then according to the position of the measuring point of test section 4, length direction moving coordinate frame 1 along slide rail 3, length direction along cross bar 7 moves clip 8 to assigned address again, just Pitot tube 10 can be moved to this measuring point, measures the total head energy P of this measuring point by many inclined-tube manometers 13
0With static energy P; Repeat the mobile Pitot tube 10 of this operation to each measuring point, just can facilitate, measure accurately the total head energy P of each measuring point
0With static energy P, and pass through formula
Calculate speed V, and then ask its mean value:
, according to the size of sectional area F, can try to achieve flow: Q=V
All* F; So just flow velocity and the flow of fluid can be measured easily and accurately by the utility model, for experiment facilitates.
The basic structure of the present embodiment is with embodiment 1, its difference is, be provided with trip bolt 12 on described clip 8, after Pitot tube 10 being moved to the appointment measuring point, can tighten trip bolt 12, make trip bolt 12 hold out against the cross bar 7 of frame of axes 1, Pitot tube 10 is fixed on point position, prevent from making experimental data more accurate because accidental movement Pitot tube 10 affects experimental data.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited to this.So,, if those of ordinary skill in the art is enlightened by it, in the situation that do not break away from the utility model, create aim,, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (4)
1. a convenience is accurately regulated the experiment table of Pitot tube to measuring point, comprise frame of axes (1), base (2), Pitot tube (10) and test section (4), base (2) inside is provided with blower fan (11), be fixed with test section (4) on base (2) table top, blower fan (11) is connected with test section (4) bottom by air channel (9), it is characterized in that:
Be provided with slide rail (3) on described base (2), frame of axes (1) bottom is fixed with the slide block (6) that matches with slide rail (3), and this slide block (6) is slidably connected with slide rail (3), and frame of axes (1) slides with the length direction of slide block (6) along slide rail (3);
Cross bar (7) slip cap of above-mentioned frame of axes (1) is connected to clip (8), and the upper clamping of this clip (8) has Pitot tube (10), and Pitot tube (10) slides with the length direction of clip (8) along cross bar (7).
2. a kind of convenience according to claim 1 is accurately regulated the experiment table of Pitot tube to measuring point, it is characterized in that: described slide rail (3) left side is parallel is provided with Y-direction rule (5), and is provided with the directions X rule on cross bar (7) surface.
3. a kind of convenience according to claim 2 is accurately regulated the experiment table of Pitot tube to measuring point, it is characterized in that: the zero graduation of described Y-direction rule (5) is arranged at rule central authorities, and the scale size increases progressively to two ends.
4. according to claim 1 or 3 described a kind of convenience are accurately regulated the experiment table of Pitot tube to measuring point, it is characterized in that: be provided with trip bolt (12) on described clip (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203535023U CN203287054U (en) | 2013-06-19 | 2013-06-19 | Experiment table enabling Pitot tube to be adjusted to measuring point conveniently and accurately |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203535023U CN203287054U (en) | 2013-06-19 | 2013-06-19 | Experiment table enabling Pitot tube to be adjusted to measuring point conveniently and accurately |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203287054U true CN203287054U (en) | 2013-11-13 |
Family
ID=49543411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203535023U Expired - Fee Related CN203287054U (en) | 2013-06-19 | 2013-06-19 | Experiment table enabling Pitot tube to be adjusted to measuring point conveniently and accurately |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203287054U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642499A (en) * | 2017-10-26 | 2018-01-30 | 中国计量大学 | Axial fan device for detecting performance and its assay method |
| CN110045144A (en) * | 2019-04-18 | 2019-07-23 | 上海市计量测试技术研究院(中国上海测试中心、华东国家计量测试中心、上海市计量器具强制检定中心) | A kind of closed conduct flow rate of liquid distribution method for automatic measurement and device |
| GB2610760A (en) * | 2021-11-17 | 2023-03-15 | Univ Jiangsu | Pressure testing machine for fluid in cavitation generator and testing method using same |
-
2013
- 2013-06-19 CN CN2013203535023U patent/CN203287054U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642499A (en) * | 2017-10-26 | 2018-01-30 | 中国计量大学 | Axial fan device for detecting performance and its assay method |
| CN110045144A (en) * | 2019-04-18 | 2019-07-23 | 上海市计量测试技术研究院(中国上海测试中心、华东国家计量测试中心、上海市计量器具强制检定中心) | A kind of closed conduct flow rate of liquid distribution method for automatic measurement and device |
| GB2610760A (en) * | 2021-11-17 | 2023-03-15 | Univ Jiangsu | Pressure testing machine for fluid in cavitation generator and testing method using same |
| GB2610760B (en) * | 2021-11-17 | 2024-02-28 | Univ Jiangsu | Pressure testing machine for fluid in cavitation generator and testing method using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103029115B (en) | Thermoplastic plastic pipe detection scriber | |
| CN204286780U (en) | A kind of flexible hinge rotational stiffness experimental apparatus for testing | |
| CN203443970U (en) | Direction controllable pitot tube | |
| CN201732497U (en) | Reynolds experimental apparatus | |
| CN203772198U (en) | Wall template verticality detector | |
| CN203287054U (en) | Experiment table enabling Pitot tube to be adjusted to measuring point conveniently and accurately | |
| CN203414259U (en) | Fluid mechanics experiment table equipped with multiple Pitot tubes | |
| CN202533105U (en) | Circular-arc target-shaped target flowmeter | |
| CN202793475U (en) | Experiment table facilitating movement of Pitot tube to designated test spot | |
| CN203727062U (en) | Multifunctional protractor | |
| CN102538876A (en) | Tester for parameter of flow field of gas static pressure restrictor | |
| CN202361923U (en) | External diameter continuous measuring instrument | |
| CN104236640A (en) | Simple gas flow measuring device and measuring method | |
| CN205103165U (en) | Device that combines vortex correlation systematic observation ozone flux | |
| CN207407815U (en) | Accurate measurement instruments used for education based on abbe's principle | |
| CN202964636U (en) | Margin line marking tool | |
| CN206470284U (en) | The measurement apparatus of gas in pipelines flow velocity | |
| CN106225855B (en) | Combined flute-shaped pipe wind speed detection device | |
| CN204354669U (en) | Multifunctional compasses | |
| CN106969687A (en) | A kind of slide clearance test device | |
| CN206095318U (en) | Air quantity testing device that measuring point position can accurately adjust | |
| CN206589520U (en) | A kind of drawing board that mapping precision is improved using horizontal principle | |
| CN208148909U (en) | A kind of portable engineering mapping plate | |
| CN208238701U (en) | A kind of tapping depth measuring device | |
| CN107504939B (en) | Radial convergence deformation measuring device for tunnel model test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140619 |
|
| EXPY | Termination of patent right or utility model |