CN206401024U - A kind of noise control system applied to master control room of nuclear power station - Google Patents
A kind of noise control system applied to master control room of nuclear power station Download PDFInfo
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- CN206401024U CN206401024U CN201621271733.XU CN201621271733U CN206401024U CN 206401024 U CN206401024 U CN 206401024U CN 201621271733 U CN201621271733 U CN 201621271733U CN 206401024 U CN206401024 U CN 206401024U
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Abstract
The utility model is related to a kind of noise control system applied to master control room of nuclear power station, and the system includes：Ventilation and air conditioning system vibration and noise reducing device, the sound absorption furred ceiling at the top of master control room and the sound absorption wall inside master control room；Wherein, the ventilation and air conditioning system vibration and noise reducing device includes air port end Soundproofing static pressure box, airduct Soundproofing static pressure box, airduct silencer, airduct flexible suspension.The airduct silencer is set on the ventilation main pipeline of ventilation and air conditioning system, and is combined by dissipative muffler and reactive muffler matching.Noise control system described in the utility model, rationally, comprehensively, the problem of can systematically solving in master control room of nuclear power station Noise Control Design, it is ensured that Noise Control Design is once up to standard.The denoising device and flexible suspension of the utility model design, combine closely with the fire prevention of master control room of nuclear power station engineering and shockproof requirements, the noise in master control room are greatly reduced.
Description
Technical field
The utility model belongs to nuclear power station system design technology, and in particular to a kind of noise applied to master control room of nuclear power station
Complex control system.
Background technology
The master control room of nuclear power station, as the control axis of whole nuclear power station, is that all kinds of instrument of nuclear power station and signal concentrate aobvious
The place show, controlled, has highly important status in terms of the safe operation of nuclear power station is ensured.
Over nearly 10 years, China's Nuclear Electricity is quickly grown, and the nuclear reactor put into effect at present is up to more than ten.But nuclear power
The noise figure for master control room of standing is generally 60dB (A) left and right, and the security of working environment and nuclear power station to nuclear power station personnel is caused
Certain influence.Therefore the noise level of master control room of nuclear power station is reduced, is had great importance.By to influence nuclear power station master control
The noise source of room is analyzed, it may be determined that the Main Noise Sources inside influence master control room of nuclear power station are ventilation and air conditioning system and logical
The electric instrument noise crossed inside the solid-borne sound transmission and master control room of airduct introducing.Accordingly, it would be desirable to be combined into noise with a variety of denoising devices
Complex control system, can efficiently control the noise in master control room of nuclear power station.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of noise synthesis control applied to master control room of nuclear power station
System processed.The system is constituted by meeting nuclear power fire-protection rating and Seismic Design Requirements series special noise reduction and vibration absorber, and is led to
The combined method for crossing system carries out type selecting, disclosure satisfy that the requirement of master control room of nuclear power station Noise measarement.Its practicality has been obtained
The confirmation of the engineering projects such as certain nuclear power station second phase application, it is adaptable to similar master control room of nuclear power station Noise measarement.
Specifically, the utility model provides a kind of noise control system applied to master control room of nuclear power station, the system
System includes ventilation and air conditioning system vibration and noise reducing device, and it is quiet that the ventilation and air conditioning system vibration and noise reducing device includes the noise elimination of air port end
Press case, airduct Soundproofing static pressure box, airduct silencer, airduct flexible suspension；
Air port end Soundproofing static pressure box is arranged between master control room tail end air port and the airduct of ventilation and air conditioning system；
The airduct Soundproofing static pressure box is arranged at the air main of ventilation and air conditioning system and branch wind pipe shunting；
The airduct silencer is set on the ventilation main pipeline of ventilation and air conditioning system；
The airduct of the master control room is fixed on wall or roofing by the airduct flexible suspension.
Further, the noise control system as described above for being applied to master control room of nuclear power station, the airduct silencer
By dissipative muffler and reactive muffler matching combination.
Further, the noise control system as described above for being applied to master control room of nuclear power station, the dissipative muffler
For strip-type silencer, sound deadening capacity is 12~15dBA/m, wherein perforation board diameter is in 2.5~3mm, punching rate is 23%~30%；
Glass silk flosssilk wadding is ultra-fine centrifugally glass-wool, and unit weight is in 32~48kg/m3。
Further, the noise control system as described above for being applied to master control room of nuclear power station, the reactive muffler
For micro-perforated plate muffler, sound deadening capacity is 8~10dB/m, wherein microwell plate bore dia in 0.2~0.8mm, punching rate is 0.6%~
3%.
Further, the noise control system as described above for being applied to master control room of nuclear power station, the airduct elastic lifting
Frame includes fixed plate, suspension rod, steel spring vibration isolator and elastic pipe collar；The steel spring vibration isolator is arranged on suspension rod, the bullet
Property pipe collar is arranged in fixed plate；One end of the suspension rod is fixed in fixed plate, and the other end is fixed in top wall；Airduct
It is fixed on the elastic pipe collar.
Further, the noise control system as described above for being applied to master control room of nuclear power station, the air conditioner system
System vibration and noise reducing device further comprises that sound insulation stops the pad that shakes, and is arranged on airduct surface of shell, the vibration acoustically radiating for reducing airduct
Penetrate.
Further, the noise control system as described above for being applied to master control room of nuclear power station, the air port end is eliminated the noise
Plenum chamber is the environmental clean denoising device of microwell plate, and microwell plate bore dia is 0.6%~3% in 0.2~0.8mm, punching rate, is disappeared
Sound plenum chamber volume is at 0.25~0.5 cubic metre, and noise reduction is in 8~10dB；Noise elimination 250~300mm of hose diameter, length 1.5
~2m.
Further, the noise control system as described above for being applied to master control room of nuclear power station, the control system is also
Including the sound absorption furred ceiling at the top of master control room and the sound absorption wall inside master control room.
Further, the as described above noise control system for being applied to master control room of nuclear power station, the sound absorption furred ceiling and
The sound absorption structure of sound absorption wall is impedance complex structure, and the structure includes microperforated panel, the cavity in the microperforated panel, sky
The sound-absorbing material of intracavitary.
The utility model is due to using above technical scheme, and it has advantages below：
1. noise control system described in the utility model, rationally, comprehensively, can systematically solve nuclear power station master control
The problem of in room noise control design case, it is ensured that Noise Control Design is once up to standard.The noise control system has been successfully applied to certain
Nuclear power station the second stage of the project, master control room ambient noise is substantially reduced compared with first stage of the project, and 53~55dB is reduced to by 60~63dB (A)
(A)。
2. the denoising device and flexible suspension of the utility model design, with the fire prevention of master control room of nuclear power station engineering and shockproof requirements
Combine closely, the noise in master control room is greatly reduced.
Brief description of the drawings
Fig. 1 is the structure principle chart for the noise control system that the utility model is applied to master control room of nuclear power station.
Fig. 2 is ventilation main pipeline A type dissipative muffler structural representations.
Fig. 3 is ventilation main pipeline Type B dissipative muffler structural representation.
Fig. 4 is ventilation main pipeline c-type dissipative muffler structural representation.
Fig. 5 is ventilation main pipeline reactive muffler structure schematic diagram.
Fig. 6 is airduct flexible suspension structural representation.
Fig. 7 is that airduct sound insulation stops the mat structure schematic diagram that shakes.
Fig. 8 is air port end Soundproofing static pressure box structural representation.
Fig. 9 is impedance complex sound absorption ceiling structure schematic diagram.
Figure 10 is impedance complex sound absorption wall body structure schematic diagram.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
The utility model provides a kind of noise control system applied to master control room of nuclear power station, the Comprehensive Control system
System is main to include air blow and return silencer, air outlet and the ajutage applied to master control room of nuclear power station ventilation and air conditioning system Noise measarement
Noise elimination flexible pipe connect and end Soundproofing static pressure box air supply mode, interflow or shunting at Soundproofing static pressure box, airduct flexible suspension,
Microperforated panel composite sound absorbing furred ceiling and microperforated panel composite sound absorbing wall in master control room of nuclear power station room.Use the Comprehensive Control system
System, can efficiently control the noise in master control room of nuclear power station, reduce the incoming of external noise.
As shown in figure 1, for noise control system principle schematic diagram of the present utility model, the system includes：Ventilation
Air-conditioning system vibration and noise reducing device, the impedance complex sound absorption furred ceiling 6 and inside master control room at the top of master control room
Absorb sound wall 7；Wherein, the ventilation and air conditioning system vibration and noise reducing device is by air port end Soundproofing static pressure box 3, airduct noise elimination static pressure
Case 2, airduct silencer 1, airduct flexible suspension 4 are constituted.
As shown in table 1 below, the effect of above-mentioned part is as follows:
Table 1
Each part listed in table 1 is described in detail again separately below.
(1) set on the ventilation main pipeline of ventilation and air conditioning system by dissipative muffler and reactive muffler matching combination
Airduct silencer 1, realize broadband anti-acoustic capability, combination sound deadening capacity is 30~35dB.Above-mentioned airduct silencer 1 includes following
It is several：
(1) dissipative muffler is provided with the ventilation main pipeline of ventilation and air conditioning system, is divided into tri- types of A, B, C, point
Not as in Figure 2-4：The serial dissipative muffler is used for the high-frequency noises for solving nuclear power ventilating system of master control room.
The silencer includes perforated plate 21, glass silk flosssilk wadding 22, water conservancy diversion arcs 23, flange 24.The serial dissipative muffler is piece
Formula silencer, sound deadening capacity is 12~15dBA/m.Wherein perforation board diameter is in 2.5~3mm, and punching rate is 23%~30%；Glass
Silk flosssilk wadding is ultra-fine centrifugally glass-wool, and unit weight is in 32~48kg/m3。
(2) reactive muffler is set on ventilation main pipeline：Reactive muffler is designed for solving nuclear power master control chamber ventilated
The special frequency channel noise of system, especially low-frequency noise, its structural representation diagram form are as shown in Figure 5.
The silencer includes water conservancy diversion arcs 23, flange 24, microwell plate 25, outside plate 26.The reactive muffler is eliminated the noise for microwell plate
Device, sound deadening capacity is 8~10dB/m.Wherein microwell plate bore dia is in 0.2~0.8mm, and punching rate is 0.6%~3%.
(2) airduct Soundproofing static pressure box 2：The airduct Soundproofing static pressure box is arranged on air main with branch wind pipe shunting, protecting
Demonstrate,prove air-conditioning system air-flow it is steady while, reduce its through-flow noise, its structure type is as schemed.The Soundproofing static pressure box sound deadening capacity is
12~15dB, volume is 18~20m3。
(3) airduct flexible suspension 4 and sound insulation stop the pad that shakes：
Airduct is supported on wall or roofing by airduct flexible suspension 4, the solid for reducing ventilation and air conditioning system pipeline
Transaudient, the vibration isolation efficiency of its steel spring vibration isolator is 90~95%.
As shown in fig. 6, the airduct flexible suspension, including fixed plate 8, suspension rod 9, steel spring vibration isolator 10 and elastic pipe collar
11；The steel spring vibration isolator 10 is arranged on suspension rod 9, and the elastic pipe collar 11 is arranged in fixed plate 8；The suspension rod 9
One end is fixed in fixed plate 8, and the other end is fixed in top wall 12.Airduct 13 is fixed on the elastic pipe collar 11.
By using steel spring vibration isolator in the suspension bracket 4 of airduct, on the basis of suspension bracket meets vibration isolation, reach that ventilation is empty
Adjusting system Seismic Design Requirements.The steel spring vibration isolator by vibration isolator rigidity, damping when carrying scope matched design come
Realize above-mentioned requirements.
The utility model also includes sound insulation and stops the pad 27 that shakes, and is arranged on the surface of shell of airduct 13, the vibration for reducing airduct
Acoustic radiation, its structure is as shown in Figure 7.
(4) air port end Soundproofing static pressure box 3：
Air port end Soundproofing static pressure box and noise elimination flexible pipe are sequentially connected in series between master control room tail end air port and airduct, to gas
Tail end air port noise is reduced while having flowed cushioning effect.
As shown in figure 8, the Soundproofing static pressure box is the environmental clean denoising device of microwell plate, including shell 29 and internal micropore
Plate 28.The bore dia of microwell plate 28 is 0.6%~3% in 0.2~0.8mm, punching rate, and Soundproofing static pressure box volume is 0.25~0.5
Cubic meter, noise reduction is in 8~10dB.
Each noise elimination 250~300mm of hose diameter, 1.5~2m of design length.The setting of noise elimination flexible pipe, is not only solved
The flexible facility installed, also preferably eliminates ventilating system and delivers to the overbottom pressure noise still having after master control room, and this part is made an uproar
Sound accounting in master control room environmental overall noise is larger, and is also most intuitively for operator's perception.
In addition, when master control room design level it is tall and big in 4.5 meters when, can separately be set up on concrete original ground one layer of aerating every
Layer, ajutage delivers to this air buffer, is sent out by the balanced ventilation mouthful being opened on antistatic light fire-proof floor.By in sky
Air-casing inwall sets sound absorption structure, realizes civil engineering type Soundproofing static pressure box, meets air-supply and the requirement of noise reduction.Sound absorption structure is resistance
Property acoustic board, acoustic absorptivity is 0.55~0.95, and thickness is in 100~150mm.
(5) sound absorption furred ceiling 6 and sound absorption wall 7：The sound absorption structure of sound absorption furred ceiling and sound absorption wall is impedance complex structure,
Its average sound absorption coefficient is 0.55~0.95, and the gross area is in 80 square meters to 120 square meters.
As shown in Fig. 9,10, the sound absorbing capabilities of the impedance complex sound absorption structure pass through microperforated panel 30, cavity 31, mineral wool
32 (sound-absorbing material) three acoustic elements are realized.Microperforated panel performance is determined by punching rate；Cavity performance is determined by cavity volume；
Mineral wool performance is determined by unit weight.By will influence the punching rate of combined wall integrated absorbance, cavity volume, unit weight these three
Parameter carries out a variety of various combinations, and actual measurement obtains comprehensive optimal structure.
The utility model provides a set of special complex control system, its science, conjunction for nuclear power master control room Noise measarement
Reason, it is effective, obtain the confirmation of engineering practice.
Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model
New spirit and scope.So, if belonging to the utility model claim to these modifications and variations of the present utility model
And its within the scope of equivalent technology, then the utility model is also intended to comprising including these changes and modification.
Claims (9)
1. a kind of noise control system applied to master control room of nuclear power station, it is characterised in that：
The system includes ventilation and air conditioning system vibration and noise reducing device, and the ventilation and air conditioning system vibration and noise reducing device includes air port
End Soundproofing static pressure box, airduct Soundproofing static pressure box, airduct silencer, airduct flexible suspension；
Air port end Soundproofing static pressure box is arranged between master control room tail end air port and the airduct of ventilation and air conditioning system；
The airduct Soundproofing static pressure box is arranged at the air main of ventilation and air conditioning system and branch wind pipe shunting；
The airduct silencer is set on the ventilation main pipeline of ventilation and air conditioning system；
The airduct of the master control room is fixed on wall or roofing by the airduct flexible suspension.
2. the noise control system of master control room of nuclear power station is applied to as claimed in claim 1, it is characterised in that：
The airduct silencer is combined by dissipative muffler and reactive muffler matching.
3. the noise control system of master control room of nuclear power station is applied to as claimed in claim 2, it is characterised in that：
The dissipative muffler is strip-type silencer, and sound deadening capacity is 12~15dBA/m, wherein perforation board diameter is in 2.5~3mm,
Punching rate is 23%~30%；Glass silk flosssilk wadding is ultra-fine centrifugally glass-wool, and unit weight is in 32~48kg/m3。
4. the noise control system of master control room of nuclear power station is applied to as claimed in claim 2, it is characterised in that：
The reactive muffler is micro-perforated plate muffler, and sound deadening capacity is 8~10dB/m, wherein microwell plate bore dia 0.2~
0.8mm, punching rate is 0.6%~3%.
5. the noise control system of master control room of nuclear power station is applied to as claimed in claim 1, it is characterised in that：
The airduct flexible suspension includes fixed plate, suspension rod, steel spring vibration isolator and elastic pipe collar；The steel spring vibration isolator is set
It is placed on suspension rod, the elastic pipe collar is arranged in fixed plate；One end of the suspension rod is fixed in fixed plate, and the other end is fixed
In top wall；Airduct is fixed on the elastic pipe collar.
6. the noise control system of master control room of nuclear power station is applied to as claimed in claim 1, it is characterised in that：
The ventilation and air conditioning system vibration and noise reducing device further comprises that sound insulation stops the pad that shakes, and is arranged on airduct surface of shell, is used for
Reduce the vibration acoustic radiation of airduct.
7. the noise control system of master control room of nuclear power station is applied to as claimed in claim 1, it is characterised in that：
The air port end Soundproofing static pressure box is the environmental clean denoising device of microwell plate, and microwell plate bore dia is worn in 0.2~0.8mm
Porosity is 0.6%~3%, and Soundproofing static pressure box volume is at 0.25~0.5 cubic metre, and noise reduction is in 8~10dB；Noise elimination hose diameter
250~300mm, 1.5~2m of length.
8. the noise control system of master control room of nuclear power station is applied to as claimed in claim 1, it is characterised in that：
The control system also includes being arranged on the sound absorption furred ceiling at the top of master control room and the sound absorption wall inside master control room.
9. the noise control system of master control room of nuclear power station is applied to as claimed in claim 8, it is characterised in that：
The sound absorption structure of the sound absorption furred ceiling and sound absorption wall is impedance complex structure, and the structure includes microperforated panel, described
The sound-absorbing material in cavity, cavity in microperforated panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621271733.XU CN206401024U (en) | 2016-11-24 | 2016-11-24 | A kind of noise control system applied to master control room of nuclear power station |
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|---|---|---|---|
| CN201621271733.XU CN206401024U (en) | 2016-11-24 | 2016-11-24 | A kind of noise control system applied to master control room of nuclear power station |
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| CN206401024U true CN206401024U (en) | 2017-08-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107932A (en) * | 2021-03-29 | 2021-07-13 | 株洲时代新材料科技股份有限公司 | Flow guide noise reduction sheet and flow guide noise reduction method of bent pipeline |
-
2016
- 2016-11-24 CN CN201621271733.XU patent/CN206401024U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107932A (en) * | 2021-03-29 | 2021-07-13 | 株洲时代新材料科技股份有限公司 | Flow guide noise reduction sheet and flow guide noise reduction method of bent pipeline |
| CN113107932B (en) * | 2021-03-29 | 2022-08-26 | 株洲时代新材料科技股份有限公司 | Flow guide noise reduction sheet and flow guide noise reduction method of bent pipeline |
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