Gap-adjustable orifice flow characteristic experimental facility
A technology of flow characteristics and experimental devices, which is applied to the volume/mass flow generated by mechanical effects, and the direction of fluid flow detection by measuring pressure difference, to achieve the effect of simple and compact structure, good versatility, and easy disassembly and assembly.
Active Publication Date: 2014-10-15
WUHAN UNIV OF TECH
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Problems solved by technology
[0002] The interior of the pneumatic component is composed of different types of fixed orifices arranged in different ways, so the flow characteristics of the orifice directly determine the flow characteristics of the pneumatic component, and the flow characteristics of the orifice are mainly affected by the diameter, length and outlet clearance. At present, there is no complete set of devices that can be used to test the flow characteristics of fixed orifices, especially for the adjustment device of variable outlet clearance of orifices.
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[0032] The present invention will be further described below in conjunction with accompanying drawings and examples.
[0033] The fixed orifice flow characteristics experimental device with adjustable clearance of the present invention is shown in the attached Figure 1-8 , including front cover 1, fixed orifice 2, guide plate 3, spring 4, movable baffle 5, bushing 6, sleeve 7, adjusting sleeve 9, knob 10, rear end cover 11. figure 1 Shown is a cross-sectional view of the device. The fixed orifice 2 is a stepped annular cylinder with a chassis. The central hole of the cylinder extends to the chassis and forms an annular surface on the center of the chassis. The center of the annulus is the through hole in the center of the chassis. The hole forms a throttle hole in the shape of a concentric step hole, and the chassis is provided with a sealing ring groove; the fixed throttle hole 2, the guide plate 3 and the shaft sleeve 6 are all concentrically placed in the cylindrical slee...
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The invention relates to a gap-adjustable orifice flow characteristic experimental facility. A fixed orifice, a guiding supporting plate and a shaft sleeve are concentrically placed in a cylindrical sleeve; the guiding supporting plate is arranged on the inner wall of the sleeve, and serves as a movable baffle bracket, the parallelism of a movable baffle and an outlet end surface can be guaranteed when gaps are adjusted, and the guiding supporting plate has a guiding function; a lead screw and spring gap adjusting device drives the movable baffle to move in the front-back direction by means of rotation of an adjusting knob, and an outlet gap of the fixed orifice is changed; and a graduated disc on the adjusting sleeve is matched with scales on the knob, the moving distance of the movable baffle is indicated, and the outlet gap of the fixed orifice is accurately read. The variable orifice can be formed by using the experimental facility, the structure of the fixed orifice in a pneumatic element is simulated, and the flow characteristics of the orifice are tested.
Description
technical field [0001] The invention relates to the field of pneumatic technology, in particular to an experimental device for flow characteristics under variable outlet conditions of pneumatic components. Background technique [0002] The interior of the pneumatic component is composed of different types of fixed orifices arranged in different ways, so the flow characteristics of the orifice directly determine the flow characteristics of the pneumatic component, and the flow characteristics of the orifice are mainly affected by the diameter, length and outlet clearance. At present, there is no complete set of devices that can be used to test the flow characteristics of fixed orifices, especially for the adjustment device of variable outlet clearance of orifices. Contents of the invention [0003] In view of the above-mentioned defects, the object of the present invention is to provide an experimental device for the flow characteristic of a fixed orifice with an adjustable...
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IPC IPC(8): G01F1/36
Inventor 李刚炎杨凡胡剑亓旺龚睿
Owner WUHAN UNIV OF TECH