CN202793475U - Experiment table facilitating movement of Pitot tube to designated test spot - Google Patents
Experiment table facilitating movement of Pitot tube to designated test spot Download PDFInfo
- Publication number
- CN202793475U CN202793475U CN 201220486718 CN201220486718U CN202793475U CN 202793475 U CN202793475 U CN 202793475U CN 201220486718 CN201220486718 CN 201220486718 CN 201220486718 U CN201220486718 U CN 201220486718U CN 202793475 U CN202793475 U CN 202793475U
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- CN
- China
- Prior art keywords
- pitot tube
- slide bar
- experiment table
- base
- measuring point
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Abstract
The utility model discloses an experiment table facilitating movement of a Pitot tube to a designated test spot, belongs to the technical field of fluid measuring instruments and aims at providing the experiment table facilitating movement of the Pitot tube to the designated test spot. The experiment table facilitating movement of the Pitot tube to the designated test spot comprises a traverse gauge, a base, a Pitot tube and a test section. The test section is fixedly connected with the base. The Pitot tube is connected with the traverse gauge through a clamp. Four sliding rails are arranged on the base. Two ends of a first sliding rod and a second sliding rod are respectively clamped in the sliding rails. The traverse gauge is fixedly connected with a cross through hole. The first sliding rod and the second sliding rod both penetrate through the cross through hole and fixing screws are respectively arranged on one ends of the two sliding rods. An X-direction dividing rule and a Y-direction dividing rule are arranged on the base. With the experiment table facilitating movement of the Pitot tube to the designated test spot, the Pitot tube can be conveniently and accurately moved to the designated test spot during measuring the flow speed and the flow quantity of fluid, thus, operation during an experiment is convenient and measuring is accurate.
Description
Technical field
The utility model belongs to the fluid measurement Instrument technology field, more particularly, relates to the mobile Pitot tube of a kind of convenience to the experiment table of specifying 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
3Pitot tube records during experiment is the speed of certain point, in order to determine the average velocity on certain cross section, must this cross section 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:
Make Pitot tube arrive the total head energy P that the appointment measuring point is measured this point by the moving coordinate frame in the test
0With static energy P.But the experimenter can only be by range estimation during experiment, moving coordinate frame with the mobile phone tool 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 the total head of measuring can P
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 satisfy people's experiment demand.
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, the opening of this application case on threeway is provided with tensimeter, below opening establish the other end externally threaded conduit arranged, the conduit other end that links to each other with the threeway horizontal opening links to each other 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 the force pipe, but and be difficult to be 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
The technical matters that utility model will solve
The purpose of this utility model solves in the prior art exactly, the general fluid mechanics synthetic experiment bench is when measuring rate of flow of fluid and flow, conveniently mobile Pitot tube is to the problem of specifying measuring point, provide the mobile Pitot tube of a kind of convenience to the experiment table of specifying measuring point, to solve above deficiency, the convenient use.
Technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
The mobile Pitot tube of a kind of convenience of the present utility model is to the experiment table of specifying measuring point, comprise frame of axes, base, Pitot tube and test section, test section is connected mutually with base, Pitot tube links to each other with frame of axes by clip, also comprise slide rail, the first slide bar, the second slide bar and cross-hole, be provided with slide rail on the described base, the two ends of the first slide bar and the second slide bar snap fit onto respectively in the slide rail, described frame of axes is connected mutually with cross-hole, and the first slide bar and the second slide bar all pass cross-hole.
Further, described the first slide bar is vertical with the mutual antarafacial of the second slide bar.
Further, be provided with four slide rails on the described base, and two relative slide rails of position are parallel to each other.
Further, be respectively arranged with trip bolt on the end of described the first slide bar and the second slide bar.
Further, be provided with directions X rule and Y-direction rule on the described base.
Beneficial effect
The technical scheme that adopts the utility model to provide is compared with existing known technology, has following beneficial effect:
(1) the mobile Pitot tube of a kind of convenience of the present utility model is to the experiment table of specifying measuring point, because frame of axes is connected on the cross-hole, the first slide bar and the second slide bar all pass cross-hole, and Pitot tube links to each other with frame of axes by clip, so that Pitot tube can conveniently move to each measuring point on the test section along with the first slide bar and the second slide bar;
(2) the mobile Pitot tube of a kind of convenience of the present utility model is provided with directions X rule and Y-direction rule owing on the base, so that the Pitot tube that links to each other with frame of axes can accurately move to each measuring point of test section to the experiment table of specifying measuring point;
(3) the mobile Pitot tube of a kind of convenience of the present utility model is to the experiment table of specifying measuring point, owing to be respectively arranged with trip bolt on the end of the first slide bar and the second slide bar, after Pitot tube being moved to the appointment measuring point, can tighten trip bolt Pitot tube is fixed on the position, prevent from making experiment more accurate because the accidental movement frame of axes affects experimental data;
(4) the mobile Pitot tube of a kind of convenience of the present utility model is to the experiment table of specifying measuring point, and simple to operate, convenient experiment is used.
Description of drawings
Fig. 1 is one-piece construction synoptic diagram of the present utility model;
Fig. 2 is that the mobile Pitot tube of a kind of convenience of the present utility model is to the schematic perspective view of the experiment table of specifying measuring point;
Fig. 3 is the schematic top plan view of rail structure on the base in the utility model;
Fig. 4 is that the first slide bar of the present utility model and the second slide bar pass the structural representation in the cross-hole;
Fig. 5 is the fundamental diagram of measuring flow velocity by Pitot tube and many inclined-tube manometers.
Label declaration in the synoptic diagram:
1, frame of axes; 2, base; 3, slide rail; 4, test section; 5, Y-direction rule; 6, directions X rule; 7, the first slide bar; 8, the second slide bar; 9, trip bolt; 10, Pitot tube; 11, cross-hole; 12, many inclined-tube manometers.
Embodiment
Below in conjunction with Figure of description, the utility model is described in detail.
Shown in Fig. 1 ~ 4, the utility model comprises frame of axes 1, base 2, Pitot tube 10 and test section 4, test section 4 is connected mutually with base 2, Pitot tube 10 links to each other with frame of axes 1 by clip, be provided with slide rail 3 on the described base 2, the two ends of the first slide bar 7 and the second slide bar 8 snap fit onto respectively in the slide rail 3, and described frame of axes 1 is connected mutually with cross-hole 11, and the first slide bar 7 and the second slide bar 8 all pass cross-hole 11; Described the first slide bar 7 is vertical with the second slide bar 8 mutual antarafacials; Be provided with four slide rails 3 on the described base 2, and two relative slide rails 3 of position are parallel to each other; Be respectively arranged with trip bolt 9 on one end of described the first slide bar 7 and the second slide bar 8; Be provided with directions X rule 6 and Y-direction rule 5 on the described base 2.
Below in conjunction with embodiment the utility model is further explained.
In conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the mobile Pitot tube of a kind of convenience of present embodiment comprises frame of axes 1, base 2, Pitot tube 10 and test section 4 to the experiment table of specifying measuring point, and this experiment table is installed on the Hydrodynamic Generalized Test-Stand; Wherein test section 4 is connected mutually with base 2, and is connected with blower fan by pipeline in the lower end of test section 4, and Pitot tube 10 exists by clip stationary coordinate frame 1.
Be provided with four slide rails 3 on the base 2 of the present utility model, and two relative slide rails 3 of position are parallel to each other; The pulley at the first slide bar 7 and the second slide bar 8 two ends snaps in respectively in the slide rail 3, and pulley can roll along slide rail 3, so that slide bar can slide along the length direction of slide rail 3; Described frame of axes 1 is connected mutually with cross-hole 11, and the first slide bar 7 and the second slide bar 8 all pass cross-hole 11(as shown in Figure 4), the first slide bar 7 is vertical with the second slide bar 8 mutual antarafacials; Be respectively arranged with trip bolt 9 on one end of described the first slide bar 7 and the second slide bar 8, after Pitot tube 10 is moved to the appointment measuring point of test section 4, tighten again the just fixing position of Pitot tube 10 of trip bolt 9; Be provided with directions X rule 6 and Y-direction rule 5(on the described base 2 as shown in Figure 3), thus can more accurate mobile Pitot tube 10 to specifying measuring point.
During use, at first adjust many inclined-tube manometer 12 levels, and the top of Pitot tube 10 links to each other (as shown in Figure 5) with many inclined-tube manometers 12 by sebific duct, and open fan switch, during concrete experiment, many inclined-tube manometers 12 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 along directions X rule 6 moves the second slide bar 8 to assigned address, tighten the trip bolt 9 on the second slide bar 8, length direction along Y-direction rule 5 moves the first slide bar 7 to assigned address again, tighten the trip bolt 9 on the first slide bar 7, just Pitot tube 10 can be moved to this measuring point, the total head of measuring this measuring point by many inclined-tube manometers 12 can P
0With static energy P; Repeat this and operate mobile Pitot tube 10 to each measuring point, the total head that just can make things convenient for, measure accurately each measuring point can P
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:
So can measure convenient by the utility model, accurately flow velocity and the flow of fluid.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in the accompanying drawing also is 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 does not break away from the utility model creation 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 (5)
1. the mobile Pitot tube of convenience is to the experiment table of specifying measuring point, comprise frame of axes (1), base (2), Pitot tube (10) and test section (4), test section (4) is connected mutually with base (2), Pitot tube (10) links to each other with frame of axes (1) by clip, it is characterized in that: also comprise slide rail (3), the first slide bar (7), the second slide bar (8) and cross-hole (11), be provided with slide rail (3) on the described base (2), the two ends of the first slide bar (7) and the second slide bar (8) snap fit onto respectively in the slide rail (3), described frame of axes (1) is connected mutually with cross-hole (11), and the first slide bar (7) and the second slide bar (8) all pass cross-hole (11).
2. the mobile Pitot tube of a kind of convenience according to claim 1 is characterized in that to the experiment table of specifying measuring point: antarafacial is vertical mutually with the second slide bar (8) for described the first slide bar (7).
3. the mobile Pitot tube of a kind of convenience according to claim 1 is characterized in that to the experiment table of specifying measuring point: be provided with four slide rails (3) on the described base (2), and relative two slide rails (3) in position are parallel to each other.
4. the mobile Pitot tube of a kind of convenience according to claim 1 and 2 is characterized in that to the experiment table of specifying measuring point: be respectively arranged with trip bolt (9) on the end of described the first slide bar (7) and the second slide bar (8).
According to claim 1 or the mobile Pitot tube of 3 described a kind of convenience to the experiment table of specifying measuring point, it is characterized in that: be provided with directions X rule (6) and Y-direction rule (5) on the described base (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486718 CN202793475U (en) | 2012-09-24 | 2012-09-24 | Experiment table facilitating movement of Pitot tube to designated test spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486718 CN202793475U (en) | 2012-09-24 | 2012-09-24 | Experiment table facilitating movement of Pitot tube to designated test spot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202793475U true CN202793475U (en) | 2013-03-13 |
Family
ID=47820721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220486718 Expired - Fee Related CN202793475U (en) | 2012-09-24 | 2012-09-24 | Experiment table facilitating movement of Pitot tube to designated test spot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202793475U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121958A (en) * | 2014-08-13 | 2014-10-29 | 株洲南车时代电气股份有限公司 | Improved air volume measuring device based on L-shaped pitot tube |
| CN107272848A (en) * | 2017-07-18 | 2017-10-20 | 合肥壹佰度信息科技有限公司 | A kind of computer base with heat sinking function |
| CN107525622A (en) * | 2017-09-19 | 2017-12-29 | 中国水利水电科学研究院 | L-type Pitot tube stationary positioned device |
-
2012
- 2012-09-24 CN CN 201220486718 patent/CN202793475U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121958A (en) * | 2014-08-13 | 2014-10-29 | 株洲南车时代电气股份有限公司 | Improved air volume measuring device based on L-shaped pitot tube |
| CN107272848A (en) * | 2017-07-18 | 2017-10-20 | 合肥壹佰度信息科技有限公司 | A kind of computer base with heat sinking function |
| CN107525622A (en) * | 2017-09-19 | 2017-12-29 | 中国水利水电科学研究院 | L-type Pitot tube stationary positioned device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130924 |