Method for detecting wall-mounted ceramic water closet flushing noise through sound energy level measurement method
A toilet and wall-mounted technology, which is applied in the direction of measuring ultrasonic/sonic/infrasonic waves, measuring devices, instruments, etc., to achieve the effect of improving science
Inactive Publication Date: 2019-05-14
李文杰
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[0004] The technical problem to be solved in the present invention is to provide a fast time-weighted characteristic "F" of the A-weighted equivalent sound level of the application sound level meter to the cumulative percentage sound energy level L on the parallelepiped or hemisphere measurement surface. JA(10) The method of detecting the flushing noise of the wall-hung ceramic toilet characterized by the present invention can solve the problem of accurate quantitative testing of the flushing noise of the wall-hung ceramic toilet and even the water inlet / drainage noise of sanitary ceramics
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[0129] The present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0130] In this example, the flushing noise detection of the wall-mounted ceramic toilet product produced in Tangshan, Hebei, the internal structure is jet siphon type, the double-stage nominal water consumption is 6L and 3L respectively, and the matching flushing water tank is used under the condition of full flushing water consumption As an example.
[0131] The specific detection method is carried out according to the following steps:
[0132] (1) Sample installation and debugging
[0133] 1.1 Sample quantity and specification
[0134] Three porcelain or stoneware wall-mounted toilet samples of the same type, specification and size produced by t...
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The invention relates to a detection method of wall-mounted ceramic water closet flushing noise. The detection steps are as follows: sampling mounting and debugging; sound source benchmark body and parallel hexahedron or semi-spherical measurement surface determination; sound pressure level measurement; sound energy level computation and background noise, test environment and meteorological condition correction; and outcome assessment. The method is characterized in that the water closet flushing noise represented by accumulative percentage sound energy level LJA (10) on the parallel hexahedron or semi-spherical measurement surface is precisely and quantitatively detected by applying the fast time weighting feature F of the A weighing equivalent sound level of a sound level meter. The method stipulates to determine the accumulative percentage time integral sound pressure level L'EAi, q(ST)(10)(q=1,2,...Ne, and Ne is not less than 5) of single event in Ne continuous flushing noise emission events and the accumulative percentage time average sound pressure level LpAi(B)(10) at each microphone location of the parallel hexahedron or the semi-spherical measurement surface, the sound energy level LJA(10) in the normal flushing period is computed, and an outcome assessment evidence is provided. The blank at the technical field of the detecting the wall-mounted ceramic water closet flushing noise can be filled, the scientificity of the method and the comparability of the outcome are realized, and the detection technical support is provided for improving the production process and regulating the market order by the ceramic enterprise.
Description
technical field [0001] The present invention relates to a noise quantitative testing method, specifically a fast time weighting characteristic "F" of the A-weighted equivalent sound level of the sound level meter is used to measure the sound energy level L by the cumulative percentage on the parallelepiped or hemisphere measurement surface. JA(10) A method for detecting flushing noise of a characterized wall-mounted ceramic toilet bowl belongs to the technical field of ceramic physical and chemical performance testing. Background technique [0002] The noise generated during the toilet flushing process belongs to the category of liquid dynamic noise, which is roughly composed of three parts: the structural vibration noise of the pipeline, the fluid noise of the water and the cavitation noise. In the area, the pipeline forms mechanical vibration under the action of the excitation force; while the fluid noise comes from the pressure and flow velocity changes of the liquid, mai...
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Inventor 李文杰袁芳丽赵江伟郝秋伟李丽华
Owner 李文杰