Fluid pressure and flow velocity relation demonstrator

A demonstrator and pressure technology, applied in the field of teaching instruments, can solve the problem of not finding the relationship between the pressure and the flow rate of the gas demonstration fluid, and achieve the effect of intuitive demonstration effect, strong operability and reasonable setting.

Inactive Publication Date: 2015-02-18
SHENYANG UNIV
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  • Abstract
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Problems solved by technology

According to the survey, the experimental objects of the patented demonstration devices for the relationship between fluid pressure and flow velocity that

Method used

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  • Fluid pressure and flow velocity relation demonstrator
  • Fluid pressure and flow velocity relation demonstrator

Examples

Experimental program
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Example Embodiment

[0014] Example

[0015] The part numbers in the picture are: 1. Bracket; 2. Medium-sized ventilation box; 3. Air inlet; 4. Seal ring; 5. Transparent round tube; 6. Demo ball; 7. Spring; 8. Thin line; 9. Nut ; 10. Screw; 11. Connecting plate; 12. Small ventilation box; 13. Large ventilation box; 14. Air outlet; 15. Right-angle connector.

[0016] see figure 1 , A demonstrator of the relationship between fluid pressure and flow rate, including 3 ventilated boxes with different volumes, 3 transparent round tubes 5 of the same diameter, demonstration ball 6, sealing ring 4, bracket 1, spring 7 and screw 10. 3 The ventilation boxes are all rectangular parallelepipeds made of transparent glass, which are divided into large ventilation boxes 13, medium ventilation boxes 2 and small ventilation boxes 12 according to their volume. Among them, medium ventilation boxes 2, small ventilation boxes 12 and large ventilation boxes The ventilating boxes 13 are connected in sequence and the upper b...

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Abstract

The invention discloses a fluid pressure and flow velocity relation demonstrator and relates to a teaching apparatus. The demonstrator comprises three ventilating boxes different in size, three transparent round tubes (5) identical in diameter, demonstration balls (6), seal rings (4), a support (1), springs (7) and screws (10), wherein the three ventilating boxes are mutually connected together on the upper box surfaces through connecting plates (11), the lower sides of the three ventilating boxes are mutually connected through right-angled connecting pieces (15), the support (1) is mounted below the medium ventilating box (2) and is mounted on a demonstration table, an air inlet (3) is formed in one side of the medium ventilating box (2), and an air hole (16) is formed in the other side of the medium ventilating box (2). The fluid pressure and flow velocity relation demonstrator has the advantages that the demonstrator demonstrating the fluid pressure and flow velocity relation by gas helps students comprehend the fluid pressure and flow velocity relation, is convenient for a teacher to explain knowledge points and enlighten the students of application and flexibility of knowledge about the fluid pressure and flow velocity relation and particularly, can be applied to analysis on airplane lift reasons and the like.

Description

technical field [0001] The invention relates to a teaching instrument, in particular to a demonstrator for the relationship between fluid pressure and flow velocity. Background technique [0002] The relationship between fluid pressure and flow velocity is one of the key points of physics teaching in junior high school, and it is also one of the difficulties in teaching. Therefore, it is very important to do experiments on the relationship between fluid pressure and flow velocity and their characteristics. According to the survey, the experimental objects of the patented demonstration devices for the relationship between fluid pressure and flow velocity that have been applied for at present are all liquids, and the relationship between fluid pressure and flow velocity has not yet been found for special gas demonstration. Contents of the invention [0003] The object of the present invention is to provide a demonstrator for the relationship between fluid pressure and f...

Claims

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Application Information

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IPC IPC(8): G09B23/12
CPCG09B23/12
Inventor 戴玉梅曾涛潘承军孙丽婷
Owner SHENYANG UNIV
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