CN106782486A - A kind of master control room of nuclear power station noise control method - Google Patents
A kind of master control room of nuclear power station noise control method Download PDFInfo
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- CN106782486A CN106782486A CN201611050483.1A CN201611050483A CN106782486A CN 106782486 A CN106782486 A CN 106782486A CN 201611050483 A CN201611050483 A CN 201611050483A CN 106782486 A CN106782486 A CN 106782486A
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- Prior art keywords
- noise
- master control
- control room
- nuclear power
- power station
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Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/12—Rooms, e.g. ANC inside a room, office, concert hall or automobile cabin
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3035—Models, e.g. of the acoustic system
Abstract
The present invention relates to a kind of master control room of nuclear power station noise control method, methods described comprises the following steps：Determine Noise measarement boundary condition；Set up master control room of nuclear power station main sound source model；Master control room acoustic modeling；Determine master control room entirety noise-reducing design target；It is determined that the noise reduction measure design objective such as noise elimination, sound absorption, sound insulation；Noise reduction measure is designed and effect is checked.Design cycle of the present invention systematically can step by step solve the every problem in master control room of nuclear power station Noise Control Design, ensure that Noise Control Design is once up to standard, master control room ambient noise is substantially reduced, the precision of master control room noise calculation machine Simulation Evaluation is substantially improved, correct guide is provided to establishing science, effective noise control design case scheme.
Description
Technical field
The invention belongs to nuclear power station system design technology field, and in particular to a kind of Noise measarement side of master control room of nuclear power station
Method.
Background technology
The master control room of nuclear power station as whole nuclear power station control axis, it is aobvious to be that all kinds of instrument of nuclear power station and signal are concentrated
The place for show, controlling, has highly important status in terms of the safe operation of nuclear power station is ensured.
Over nearly 10 years, China's Nuclear Electricity quickly grows, and the nuclear reactor for putting into effect at present is up to more than ten.But nuclear power
It is but the problem for never solving, the common fault as each nuclear power station, its ambient noise value that station owner's control room noise pollution is exceeded
, there is harmful effect mostly 60dB (A) left and right to the work of master control room operator.
At present, research both at home and abroad in terms of master control room of nuclear power station Noise Control Design method, is substantially at dead state.
Because the Noise measarement of master control room of nuclear power station is related to multiple specialties such as civil engineering, electric instrument, lack system, complete method for designing very big
The progress of master control room Noise measarement level is constrained in degree, is to cause nuclear power master control room noise level to be difficult to important original up to standard
Cause.
The content of the invention
Regarding to the issue above, it is an object of the invention to provide a set of practicable master control room of nuclear power station Noise Control Design
Method, reaches master control room of nuclear power station Noise Control Design high level design object once up to standard.
To achieve the above object, the present invention takes following technical scheme：
A kind of master control room of nuclear power station noise control method, methods described comprises the following steps：
Step (1), determines Noise measarement boundary condition；
Step (2), sets up master control room of nuclear power station main sound source model；
Step (3), master control room acoustic modeling；
Step (4), determines master control room entirety noise-reducing design target；
Step (5), it is determined that the noise reduction measure design objective such as noise elimination, sound absorption, sound insulation；
Step (6), noise reduction measure design and effect are checked.
Further, according to a kind of above-mentioned master control room of nuclear power station noise control method, the specific method of the step (1)
For：Determine that master control room of nuclear power station allows to install position, the size of denoising device, it is allowed to which the acoustic damping materials scope and noise reduction for using are filled
Put in fire prevention, the requirement of shockproof aspect.
Further, according to a kind of above-mentioned master control room of nuclear power station noise control method, the specific method of the step (2)
For：For electric instrument system noise, according to the model of master control room of nuclear power station equipment, from Nuclear Power Industry electricity instrument vibration equipment database
In, similar vibration equipment data and material properties are chosen, set up electric instrument noise source physical model and setting structure vibrational excitation；
Enter exhaust outlet noise for master control room air-conditioning system, using area source of sound method to set up, specific frequency spectrum is empty from power system HVAC
Voicing source database obtains data.
Further, according to a kind of above-mentioned master control room of nuclear power station noise control method, in the step (3), it is applied in combination
Hypermesh, Nastran and LMS Virtual Lab tri- kinds of acoustics software for calculation of FEM carry out room acoustic modeling calculating.
Further, according to a kind of above-mentioned master control room of nuclear power station noise control method, the room acoustic modeling calculates bag
Include following steps：
(1) size according to master control room of nuclear power station and device layout, set up full-scale master control room of nuclear power station three-dimensional geometry
Model；
(2) master control chamber structure for nuclear power station grid is set using Hypermesh；
(3) said structure grid is imported into the acoustic mode that Nastran calculates master control room of nuclear power station；
(4) sound for importing inside LMS Virtual Lab FEM simulation calculation master control room of nuclear power station above-mentioned acoustic mode
Field distribution.
Further, according to a kind of above-mentioned master control room of nuclear power station noise control method, in the step (4), using main
The test data of experiment of noise source model of vibration represents sound source as structural vibration excitation.
Further, according to a kind of above-mentioned master control room of nuclear power station noise control method, the sound field point in the step (4)
Cloth includes each station of master control room of nuclear power station and needs to control the sound pressure level of noise level position.
Further, according to a kind of above-mentioned master control room of nuclear power station noise control method, in the step (5), according to nuclear power
Master control room of standing needs to control the exceeded situation of noise level position, noise reduction and electric instrument system needed for determining ventilation and air conditioning system
Required noise reduction.
Further, according to a kind of above-mentioned master control room of nuclear power station noise control method, the step (6) is including air conditioner
System noise is controlled, and silencer is selected according to the required noise reduction that step (5) determines, on ventilation and air conditioning system.
Further, according to a kind of above-mentioned master control room of nuclear power station noise control method, the step (6) includes electric instrument system
Noise measarement, based on sound insulation and noise reducing design, the required noise reduction design that determines according to step (5) related acoustic hood, case,
And the need for designing the electric instrument system radiating of forced ventilation device guarantee.
Due to using above technical scheme, it has advantages below to the present invention：
1. design cycle of the present invention, rationally, comprehensively, systematically can step by step solve master control room of nuclear power station noise
Every problem in control design case, it is ensured that Noise Control Design is once up to standard.The design cycle has been successfully applied to certain nuclear power
Stand the second stage of the project, master control room ambient noise is substantially reduced compared with first stage of the project, and 48~50dB (A) is reduced to by 60~63dB (A).
2. the main noise source model that the present invention sets up, is tightly combined with master control room of nuclear power station engineering practice, is substantially improved
The precision of master control room noise calculation machine Simulation Evaluation, correctly refers to establishing science, effective noise control design case scheme and providing
Draw.
Brief description of the drawings
Fig. 1 is the flow chart of master control room of nuclear power station noise control method of the present invention.
Fig. 2 is ventilating system of master control room of nuclear power station noise control method flow chart of the invention.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, being master control room of nuclear power station noise control method flow chart provided by the present invention.The design of the method
Flow includes the six big key steps such as master control room Noise measarement boundary condition determines, main noise source model is set up, its design stream
Journey is as follows：
Step (1), the determination of Noise measarement boundary condition：Groundwork is coordinated with the major design unit of nuclear power station,
Determine that master control room of nuclear power station allows to install the position of denoising device, size dimension, it is allowed to the acoustic damping materials scope and noise reduction for using
Device is in fire prevention, the requirement of shockproof aspect.
Step (2), sets up master control room main noise source model：The Main Noise Sources of master control room of nuclear power station are divided into master control room
Electric instrument system noise and master control room air-conditioning system enter exhaust outlet noise.For electric instrument system noise, groundwork is according to nuclear power
The model of master control room of standing equipment, from the green wound acoustics Nuclear Power Industry electricity instrument vibration equipment database having built up, chooses similar
Vibration equipment data and material properties, set up electric instrument noise source physical model and setting structure vibrational excitation.For master control room
Air-conditioning system enters exhaust outlet noise, and using area source of sound method to set up, specific frequency spectrum is from the green wound acoustics power train having built up
System HVAC sound source database obtains data.For the equipment without set of metadata of similar data in database, vibration data finds similar setting
It is standby to carry out actual measurement using LMS Test.Lab (universal tester)；Enter exhaust outlet for HVAC, majority is in green wound
Can be obtained in acoustics power system HVAC sound source database.Special situation, can find similar system sound level meter
Carry out on-the-spot test.
Step (3), room acoustics simulation is calculated：The step is the key in whole design cycle.According to nuclear power station owner
Size and the device layout of room are controlled, full-scale master control room of nuclear power station 3-D geometric model is set up.After model is set up, import
Hypermesh carries out the division of structured grid, and in the light of actual conditions sets material properties (Young's modulus, the Poisson's ratio of correlation
And density).The size of structured grid, it is relevant with the frequency spectrum of required calculating, it is necessary to pay special attention to classifying rationally.It is then introduced into
Nastran softwares calculate corresponding structural modal.Structural modal is imported in LMS Virtual Lab FEM, using main
The test data of experiment of noise source model of vibration represents sound source as structural vibration excitation, and nuclear power station master control is obtained after simulation calculation
Each station in room and need to control the sound pressure level of noise level position.
Step (4), determines noise-reducing design target：Noise measarement level required by different nuclear power station master control room is not
Together, the edge-restraint condition that the result and step (1) according to simulation calculation are obtained, it is determined that rational noise-reducing design target.Generally
For between 50~55dB (A).It is required that higher, it is possible to decrease to 48dB (A) left and right.
Step (5), it is determined that design noise reduction：Needed to control the exceeded situation of noise level position according to master control room of nuclear power station
(being primarily referred to as near station), the noise reduction needed for determining ventilation and air conditioning system and noise reduction needed for electric instrument system.In electric instrument system
In the case that system does not allow to install sound arrester additional, the sound absorber of furred ceiling and wall need to be specially designed, by reducing reverberation sound
Method reduces sensitive spot noise., it is necessary to essential, optimal to determine economic benefit noise reduction schemes are repeated in this step.
The Sound absorption design of nuclear power station furred ceiling and wall, according to position and absorption in noise-reducing design requirement, designs the area of sound absorber, inhales
Volume and material, all sound absorbers should reach A grades of fire protection requirement, and carry out antidetonation checking calculation.
Step (6), the specific design of noise reduction measure and calculating.Mainly include following two aspects：
(1) ventilation and air conditioning system noise, is one of emphasis of master control room of nuclear power station noise-reducing design.Its Subsystem Design stream
Journey is as shown in Figure 2：According to noise in the ventilating system after decay and reproduced air-flow noise amount, the noise figure allowed with room it
Difference, the noise reduction needed for obtaining ventilation and air conditioning system selects silencer, installed in ventilation and air conditioning system according to required noise reduction
On.
(2) control of electric instrument system noise, based on sound insulation and noise reducing design, need to design related according to the noise reduction for determining
Acoustic hood, case, and design the need for forced ventilation device ensures that electric instrument system radiates.
For the particularity of master control room of nuclear power station, all denoising devices should reach A grades of fire protection requirement, and it is multiple to carry out antidetonation
Assess calculation.
The present invention provides a set of special Noise Control Design method, its design cycle for nuclear power master control room Noise measarement
Comprehensively, rationally, the design procedure of each design phase is effective, has obtained the confirmation of engineering practice.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification are belonged to the model of the claims in the present invention and its equivalent technology
Within enclosing, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. a kind of master control room of nuclear power station noise control method, it is characterised in that：
Methods described comprises the following steps：
Step (1), determines Noise measarement boundary condition；
Step (2), sets up master control room of nuclear power station main sound source model；
Step (3), master control room acoustic modeling；
Step (4), determines master control room entirety noise-reducing design target；
Step (5), it is determined that the noise reduction measure design objective such as noise elimination, sound absorption, sound insulation；
Step (6), noise reduction measure design and effect are checked.
2. a kind of master control room of nuclear power station noise control method according to claim 1, it is characterised in that：
The specific method of the step (1) is：Determine that master control room of nuclear power station allows to install position, the size of denoising device, it is allowed to
The acoustic damping materials scope and denoising device for using are in fire prevention, the requirement of shockproof aspect.
3. a kind of master control room of nuclear power station noise control method according to claim 1, it is characterised in that：
The specific method of the step (2) is：For electric instrument system noise, according to the model of master control room of nuclear power station equipment, from core
In electric industrial electro instrument vibration equipment database, similar vibration equipment data and material properties are chosen, set up electric instrument noise source thing
Reason model and setting structure vibrational excitation；Enter exhaust outlet noise for master control room air-conditioning system, using area source of sound method to set up, tool
The frequency spectrum of body obtains data from power system HVAC sound source database.
4. a kind of master control room of nuclear power station noise control method according to claim 1, it is characterised in that：
In the step (3), it is applied in combination tri- kinds of acoustics of Hypermesh, Nastran and LMS Virtual Lab FEM and calculates
Software carries out room acoustic modeling calculating.
5. a kind of master control room of nuclear power station noise control method according to claim 4, it is characterised in that：
The room acoustic modeling is calculated and comprised the following steps：
(1) size according to master control room of nuclear power station and device layout, set up full-scale master control room of nuclear power station three-dimensional geometry mould
Type；
(2) master control chamber structure for nuclear power station grid is set using Hypermesh；
(3) said structure grid is imported into the acoustic mode that Nastran calculates master control room of nuclear power station；
(4) sound field point for importing inside LMS Virtual Lab FEM simulation calculation master control room of nuclear power station above-mentioned acoustic mode
Cloth.
6. a kind of master control room of nuclear power station noise control method according to claim 5, it is characterised in that：
In the step (4), expression sound is encouraged as structural vibration using the test data of experiment of Main Noise Sources model of vibration
Source.
7. a kind of master control room of nuclear power station noise control method according to claim 5, it is characterised in that：
Sound-filed simulation in the step (4) includes each station of master control room of nuclear power station and needs to control the sound of noise level position
Arbitrarily downgrade.
8. a kind of master control room of nuclear power station noise control method according to claim 1, it is characterised in that：
In the step (5), needed to control the exceeded situation of noise level position according to master control room of nuclear power station, determine air conditioner
Noise reduction needed for system and noise reduction needed for electric instrument system.
9. a kind of master control room of nuclear power station noise control method according to claim 8, it is characterised in that：
The step (6) includes ventilation and air conditioning system Noise measarement, and the required noise reduction determined according to step (5) selects to eliminate the noise
Device, on ventilation and air conditioning system.
10. master control room of nuclear power station noise control method as claimed in claim 8, it is characterised in that：
The Noise measarement of the step (6) including electric instrument system, based on sound insulation and noise reducing design, according to the institute that step (5) determines
Need noise reduction to design related acoustic hood, case, and design the need for forced ventilation device ensures that electric instrument system radiates.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111179898A (en) * | 2020-02-20 | 2020-05-19 | 北京朗新明环保科技有限公司 | Noise control method for water injection pump room |
| ES2800826A1 (en) * | 2019-06-25 | 2021-01-04 | Gen Electric | Control of a power generation system by visually monitoring a component during its operation (Machine-translation by Google Translate, not legally binding) |
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Application publication date: 20170531 |