Dynamic pressure measuring device of rotation type variable spraying nozzle
A technology of dynamic pressure and measuring devices, which is applied in the direction of measuring devices, testing of mechanical components, testing of machine/structural components, etc., can solve problems such as wire winding, achieve good technical results, and improve the accuracy of test data
Active Publication Date: 2013-04-03
JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH
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Problems solved by technology
[0005] The purpose of the present invention is to be able to measure the dynamic pressure of the rotary variable sprinkler head and solve the problems such as wire winding in the measurement of the dynamic pressure of the variable sprinkler head
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[0016] Such as figure 1 As shown, the present invention includes an upper pressure gauge 1, an upper lock nut 2, a flat plate 3, an upper PTFE gasket 4, a lower PTFE gasket 5, a connecting sleeve 6, a lock nut 7, a hollow shaft 9, and a swivel connection seat 10 , Lower pressure gauge 11, curved pressure guide tube 12, lower lock nut 13, spring 14, test stand 15, pressure guide tube 16, rotary nozzle 17, moving piece 18, static piece 19, support rod 20. When adopting the present invention to do the test, the specific work process is: the upper end of the flat plate 3 and the spring 14 is connected by welding, the lower end of the test frame 15 and the spring 14 is connected by welding, and the flat plate 3 and the test frame 15 are connected together by the spring 14 , The test frame 15 is connected to the swivel connecting seat 10 by welding, so that the top of the test frame 15 is at a horizontal position above the rotary nozzle 17 . The upper PTFE gasket 4 is press-fitted ...
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The invention belongs to a key device for measuring dynamic pressure of a rotation type variable spraying nozzle in an agricultural water-saving spray irrigation system and relates to a dynamic pressure measuring device of a rotation type variable spraying nozzle. The dynamic pressure measuring device comprises a pressure gage (1), a panel (3), a connection sleeve (6), a lock nut (7), a lower pressure gage (11), a bent pressure leading tube (12), a spring (14), a test rack (15) and a pressure leading tube (16). According to the dynamic pressure measuring device, the defect that electric wires are wound on a spray irrigation pipeline with rotation of the spraying nozzle when the dynamic pressure of the rotation type variable spraying nozzle is measured is overcome, and the dynamic pressure measuring device has the advantages of being simple in structure, convenient, reliable, high in testing accuracy and the like and is a technical innovation.
Description
technical field [0001] The invention belongs to the field of water-saving irrigation and sprinkling irrigation machinery, and relates to key equipment for measuring the dynamic working pressure of a rotary variable-variable sprinkler head in a sprinkler irrigation system, in particular to a dynamic pressure measuring device for a rotary variable-variable sprinkler head. Background technique [0002] Rotary variable sprinkler nozzles have certain special functions and have certain application prospects. In the currently developed rotary variable spraying nozzle, a pressure regulating device is installed at the inlet of the rotary nozzle to change the working pressure of the nozzle during the rotation of the nozzle, thereby realizing variable spraying. During the development and test of the nozzle, the pressure at the nozzle inlet is the working pressure on the inlet pipeline of the nozzle, and the actual working pressure of the nozzle is the dynamic pressure downstream of the...
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Inventor 朱兴业袁寿其李红刘俊萍
Owner JIANGSU UNIV ZHENJIANG RES INST OF FLUID ENG EQUIP TECH