CN-117189309-B - Noise reduction method and device for intelligent computation center diesel generator set

CN117189309BCN 117189309 BCN117189309 BCN 117189309BCN-117189309-B

Abstract

The application provides a noise reduction method and device for an intelligent computation center diesel generator set, which comprises the steps of firstly determining a variable-diameter airflow rate sequence, carrying out averaging on an even variable-diameter airflow rate sequence and an odd variable-diameter airflow rate sequence obtained by converting the variable-diameter airflow rate sequence, correspondingly obtaining a stable even variable-diameter airflow rate sequence and a stable odd variable-diameter airflow rate sequence, respectively carrying out cross differential point traversal on the stable even variable-diameter airflow rate sequence and the stable odd variable-diameter airflow rate sequence, correspondingly obtaining an even differential variable-diameter airflow rate sequence and a singular variable-diameter airflow rate sequence, carrying out excessive data screening on the even differential variable-diameter airflow rate sequence and the singular variable-diameter airflow rate sequence, correspondingly obtaining a first excessive variable-diameter airflow value and a second excessive variable-diameter airflow value, determining an excessive noise value, and finally carrying out humidification and flow reduction on a variable-diameter position of an exhaust pipeline according to the comparison of the excessive noise value and a preset excessive noise value so as to reduce noise.

Inventors

TAN CHANGHUA
LI SHUNLI
Che Kemou
Peng Renhui
ZHAO ZHENDONG

Assignees

广东云下汇金科技有限公司

Dates

Publication Date: 20260508
Application Date: 20231023

Claims (10)

1. The noise reduction method of the intelligent computation center diesel generator set is characterized by comprising the following steps of: starting an intelligent computation center diesel generator set, collecting the variable-diameter airflow rate at the variable-diameter position of an exhaust pipeline, and determining a variable-diameter airflow rate sequence according to the time stamp sequence; Converting the variable-diameter airflow rate sequence into an even variable-diameter airflow rate sequence and an odd variable-diameter airflow rate sequence, and respectively carrying out averaging on the even variable-diameter airflow rate sequence and the odd variable-diameter airflow rate sequence to correspondingly obtain a stable even variable-diameter airflow rate sequence and a stable odd variable-diameter airflow rate sequence; Respectively performing cross different-moving point traversal on the stable even variable-diameter airflow rate sequence and the stable odd variable-diameter airflow rate sequence to correspondingly obtain an even different-diameter airflow rate sequence and a singular variable-diameter airflow rate sequence; The even and abnormal variable diameter airflow rate sequence and the singular variable diameter airflow rate sequence are subjected to excessive data screening, a first excessive variable diameter airflow value and a second excessive variable diameter airflow value are correspondingly obtained, and then an excessive noise value is determined according to the first excessive variable diameter airflow value and the second excessive variable diameter airflow value; And comparing the excessive noise value with a preset excessive noise value, and when the excessive noise value is larger than the preset excessive noise value, humidifying and reducing the flow at the reducing position of the exhaust pipeline so as to reduce noise.
2. The method of claim 1, wherein the variable diameter airflow rate at the variable diameter of the exhaust conduit is collected by an airflow rate sensor.
3. The method of claim 1, wherein the reducing gas flow rate is sampled at equal time intervals.
4. The method of claim 1, wherein converting the sequence of variable diameter airflow rates into a sequence of even variable diameter airflow rates and a sequence of odd variable diameter airflow rates comprises: obtaining all the variable-diameter airflow rates which are even in the variable-diameter airflow rate sequence to obtain a plurality of even variable-diameter airflow rates; Arranging the plurality of even reducing airflow rates according to time sequence to obtain an even reducing airflow rate sequence; obtaining all variable-diameter airflow rates which are odd in the variable-diameter airflow rate sequence, and obtaining a plurality of odd variable-diameter airflow rates; and arranging the plurality of odd-diameter airflow rates according to time sequence to obtain an odd-diameter airflow rate sequence.
5. The method of claim 1, wherein the averaging the even-diameter airflow rate sequence and the odd-diameter airflow rate sequence, respectively, to obtain a stationary even-diameter airflow rate sequence and a stationary odd-diameter airflow rate sequence, respectively, comprises: determining the average value of the even reducing airflow rate sequence to obtain an even reducing airflow rate average value, wherein the even reducing airflow rate sequence comprises a plurality of even reducing airflow rates; residual calculation is carried out on each even reducing airflow rate and the average value of the even reducing airflow rates, so that all the stable even reducing airflow rates are obtained; Non-negative treatment is carried out on all the stable even variable-diameter airflow rates, and the stable even variable-diameter airflow rates are arranged according to time sequence, so that a stable even variable-diameter airflow rate sequence is obtained; determining the average value of the odd-diameter variable airflow rate sequence to obtain an average value of odd-diameter variable airflow rates, wherein the odd-diameter variable airflow rate sequence comprises a plurality of odd-diameter variable airflow rates; residual calculation is carried out on each odd variable-diameter airflow rate and the average value of the odd variable-diameter airflow rates, so that all stable odd variable-diameter airflow rates are obtained; And carrying out non-negative treatment on all the stable odd-diameter variable airflow rates and arranging the stable odd-diameter variable airflow rates according to the time sequence to obtain a stable odd-diameter variable airflow rate sequence.
6. The method of claim 1, wherein the performing the over-data screening on the even and odd variable diameter airflow sequences and the singular variable diameter airflow sequences to obtain the first and second over-variable diameter airflow values comprises: Determining a harmonic value of the even and abnormal variable diameter air flow rate sequence and a harmonic value of the singular variable diameter air flow rate sequence; Determining the fluctuation rate of the even and abnormal variable diameter airflow rate sequence and the fluctuation rate of the singular variable diameter airflow rate sequence; setting an even variation multiple threshold value of the even variation reducing air flow rate sequence and a singular variation multiple threshold value of the singular variation reducing air flow rate sequence; determining even excessive data screening conditions of even and abnormal variable-diameter air flow in the even and abnormal variable-diameter air flow sequence according to the harmonic value of the even and abnormal variable-diameter air flow sequence, the fluctuation rate of the even and abnormal variable-diameter air flow sequence and an even and abnormal multiple threshold; Determining a singular excess data screening condition of singular dynamic variable-diameter air flow in the singular dynamic variable-diameter air flow sequence according to the harmonic value of the singular dynamic variable-diameter air flow sequence, the fluctuation rate of the singular dynamic variable-diameter air flow sequence and a singular dynamic multiple threshold; Screening the even and abnormal variable-diameter air flow in the even and abnormal variable-diameter air flow sequence according to the even and abnormal variable-diameter data screening condition, and centralizing the even and abnormal variable-diameter air flow obtained by screening to obtain a first excessive variable-diameter air flow value; And screening the singular dynamic variable-diameter air flow in the singular dynamic variable-diameter air flow sequence according to the singular excessive data screening condition, and centralizing the singular dynamic variable-diameter air flow obtained by screening to obtain a second excessive variable-diameter air flow value.
7. The method of claim 6 wherein the even overstock screening condition is determined by the following equation: Wherein, the A harmonic value representing the flow rate sequence of the even-differential reducing gas, The fluctuation rate of the flow rate sequence of the even-change reducing gas is represented, The threshold value of the even fluctuation multiple is represented, The first flow rate sequence of the reduced flow rate The flow rate of the variable diameter is changed according to the individual changes.
8. A noise reduction device for a mental arithmetic center diesel generator set, comprising: The variable-diameter airflow rate acquisition module is used for starting the intelligent computation center diesel generator set, acquiring the variable-diameter airflow rate at the variable-diameter position of the exhaust pipeline, and sequentially determining a variable-diameter airflow rate sequence through a time stamp; The stationary odd-even variable-diameter airflow rate determining module is used for converting the variable-diameter airflow rate sequence into an even variable-diameter airflow rate sequence and an odd variable-diameter airflow rate sequence, and respectively carrying out averaging on the even variable-diameter airflow rate sequence and the odd variable-diameter airflow rate sequence to correspondingly obtain a stationary even variable-diameter airflow rate sequence and a stationary odd variable-diameter airflow rate sequence; The odd-even variation variable-diameter airflow rate determining module is used for respectively traversing the cross different points of the stable even variable-diameter airflow rate sequence and the stable odd variable-diameter airflow rate sequence to correspondingly obtain an even variation variable-diameter airflow rate sequence and a singular variation variable-diameter airflow rate sequence; The excessive noise value determining module is used for carrying out excessive data screening on the even and abnormal variable diameter airflow degree sequence and the singular variable diameter airflow degree sequence, correspondingly obtaining a first excessive diameter airflow value and a second excessive diameter airflow value, and further determining an excessive noise value according to the first excessive diameter airflow value and the second excessive diameter airflow value; And the noise reduction module is used for comparing the excessive noise value with a preset excessive noise value, and when the excessive noise value is larger than the preset excessive noise value, humidifying and reducing the flow at the reducing position of the exhaust pipeline so as to reduce noise.
9. A computer device comprising a memory storing code and a processor configured to obtain the code and to perform the method of noise reduction of a smart hub diesel-electric generator set according to any one of claims 1 to 7.
10. A computer readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the noise reduction method of a smart hub diesel-electric generator set according to any one of claims 1 to 7.

Description

Noise reduction method and device for intelligent computation center diesel generator set Technical Field The application relates to the technical field of intelligent computation centers, in particular to a noise reduction method and device for a diesel generator set of an intelligent computation center. Background The intelligent computing center is the most important computing power production center in the intelligent age, takes a fused architecture computing system as a platform, takes data as resources, can drive an AI model to deeply process the data with strong computing power, continuously generates various intelligent computing services, and supplies the intelligent computing services to organizations and individuals in a cloud service form through a network. With the development of modern industry and life, noise pollution becomes a non-negligible problem, and in many application fields, particularly in the process of energy production and use, the problem of noise generation becomes increasingly prominent, and a diesel generator set is used as a common energy supply device, and a smart center diesel generator set is a diesel generator set equipped with an intelligent control, monitoring and management system, and has advanced intelligent functions of automatic control, remote monitoring, fault diagnosis and the like, and the generator set is generally applied to scenes of power supply, emergency power supply, remote area power supply and the like, and generates larger noise in the operation process, so that the noise reduction of the smart center diesel generator set becomes an important research and engineering problem. In the prior art, firstly, the exhaust system is optimally designed, the flow linearity of air flow is considered, the generation of flow noise is reduced, the flow of the air flow in the exhaust system is more stable by changing parameters such as the diameter, the length and the bending degree of an exhaust pipeline, so that the generation of the flow noise is reduced, secondly, a sound insulation cover is used for wrapping a diesel generator set, the propagation of the noise is isolated, a sound absorbing material is used for the inner wall of the sound insulation cover, part of sound wave energy can be absorbed, so that the radiation of the noise is reduced, meanwhile, a ventilation system is designed in the sound insulation cover, the normal operation of the generator set is ensured, the sound insulation effect is also ensured, in addition, in the internal structure of the diesel generator set, vibration conduction noise is reduced by adopting vibration reduction measures, the propagation path of the vibration noise is effectively blocked by installing a vibration reduction device at the key part of the generator set, however, the air flow can be subjected to certain interference and pressure change at the variable diameter part of the exhaust pipeline, turbulent flow can occur at the variable diameter part of the exhaust pipeline, the refraction and reflection of the sound wave are caused, and finally the noise is increased. Disclosure of Invention The application provides a noise reduction method and device for a diesel generator set of an intelligent computation center, which are used for solving the technical problems that turbulence possibly occurs at the reducing position of an exhaust pipeline of air flow, so that sound waves are refracted and reflected, and finally noise is increased. In order to solve the technical problems, the application adopts the following technical scheme: in a first aspect, the present application provides a method for noise reduction in a diesel generator set in a mental arithmetic center, comprising: starting an intelligent computation center diesel generator set, collecting the variable-diameter airflow rate at the variable-diameter position of an exhaust pipeline, and determining a variable-diameter airflow rate sequence according to the time stamp sequence; Converting the variable-diameter airflow rate sequence into an even variable-diameter airflow rate sequence and an odd variable-diameter airflow rate sequence, and respectively carrying out averaging on the even variable-diameter airflow rate sequence and the odd variable-diameter airflow rate sequence to correspondingly obtain a stable even variable-diameter airflow rate sequence and a stable odd variable-diameter airflow rate sequence; Respectively performing cross different-moving point traversal on the stable even variable-diameter airflow rate sequence and the stable odd variable-diameter airflow rate sequence to correspondingly obtain an even different-diameter airflow rate sequence and a singular variable-diameter airflow rate sequence; The even and abnormal variable diameter airflow rate sequence and the singular variable diameter airflow rate sequence are subjected to excessive data screening, a first excessive variable diameter airflow value and a second excessive variable