CN203771587U - Noise prevention box of outdoor air exchange device - Google Patents

Noise prevention box of outdoor air exchange device Download PDF

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Publication number
CN203771587U
CN203771587U CN201420165374.4U CN201420165374U CN203771587U CN 203771587 U CN203771587 U CN 203771587U CN 201420165374 U CN201420165374 U CN 201420165374U CN 203771587 U CN203771587 U CN 203771587U
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China
Prior art keywords
noise
sound
suction inlet
outdoor air
taken
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Active
Application number
CN201420165374.4U
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Chinese (zh)
Inventor
孙秀杰
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Dalian Hua Long Environmental Protection Technology Co Ltd
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Dalian Hua Long Environmental Protection Technology Co Ltd
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Priority to CN201420165374.4U priority Critical patent/CN203771587U/en
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Abstract

Provided is a noise prevention box of an outdoor air exchange device. A noise-reduction material covering layer of the noise prevention box is higher than the outdoor air exchange device, the lower edge of the left wall and the lower edge of the right wall of the noise-reduction material covering layer are respectively provided with a suction inlet, an interference type sound reduction device used for lowering sound waves from the outdoor air exchange device is fixed to the inner sides of the upper edges of the front wall, the rear wall, the left wall and the right wall through an installation table, a direct sound transmission outlet and an exhaust outlet are formed around the interference type sound reduction device, and residual noise is allowed to pass. A surrounding chamber is arranged outside the suction inlets, intake ports are formed in the position, corresponding to the suction inlets, of the wall face of the surrounding chamber, a sound-isolating wall baffle containing a sound absorbing material is arranged between each suction inlet and the corresponding intake port, the area of the sound-isolating wall baffle is larger than that of the suction inlets and that of the intake ports, and outside air entering from the intake ports moves on the outer edge of the baffle so as to flow into the suction inlets. The noise prevention box can lower noise generated due to rotation of a cool fan, and can be used for machines with other noise sources besides the cool fan.

Description

A kind of noise of outdoor air regenerating device prevents case
Technical field
The invention belongs to environmental technology field, the noise that relates to a kind of outdoor air regenerating device that possesses air hatch and exhaust outlet prevents case.
Background technology
The source of noise mainly contains three kinds, and they are traffic noise, man-made noise and domestic noise.The sound that man-made noise mainly produces from mechanical oscillation in production and the various course of work, friction, shock and flow perturbation.The production running of various factories and the city noise and vibration that construction causes of having stable political situation in city, although its impact is wide not as good as communications and transportation, the pollution in some areas is much more serious than communications and transportation.
The outdoor air regenerating devices of changes in temperature crossover such as air-cooling system, heater unit, air regenerating device adopt cooling that thermantidote pattern carries out compressor reducer conventionally, noise when this kind of pattern cannot be eliminated the work of thermantidote pivoting leaf.For a long time in high-intensity noise circumstance, people can produce auditory fatigue, acouesthesia decline, absent minded and with tinnitus and hearing loss, cause the most at last noise deafness.Along with the enhancing of people's environmental consciousness and the improvement of living environment, acoustic mass has become the common problem of paying close attention to of people, to cause the sound source of strong man-made noise administer imperative.
Summary of the invention
The present invention is directed to the outdoor air regenerating devices such as conventional air-cooling system, heater unit, air regenerating device, provide a kind of noise of outdoor air regenerating device to prevent case, effectively solve the huge noise that common outdoor changes in temperature equipment produces.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A kind of noise of outdoor air regenerating device prevents case, comprise the tubular cover layer that quieter material forms, outer gas is taken into mouth, erecting bed, the hollow pipeline of ducted body and the transaudient outlet exhaust outlet of holding concurrently, noise reduction material cover layer arranges higher than outdoor air regenerating device, Xia Yanchu at the tectal left and right of noise reduction material wall offers suction inlet, upper along portion inner side at the wall all around of this covering part, the sound wave that outdoor air regenerating device is sent being carried out to the interfere type silencing means of noise abatement is fixed by erecting bed, form the direct transaudient outlet exhaust outlet of holding concurrently, it is around interfere type silencing means, can allow remaining noise content to pass through.Adopt above-mentioned sound-proof wall material to set up peripheral cell in suction inlet outside, offer and be taken into mouth in the position corresponding with suction inlet, the wall place of peripheral cell, at suction inlet and be taken into and set up the sound-proof wall baffle plate that includes sound absorber between mouth, the area of sound-proof wall baffle plate is greater than suction inlet and is taken into mouth, the outer gas that the entrance of asking for enters is roundabout in the outward flange of baffle plate, so that it flows into suction inlet.
The outdoor air regenerating device of the novel cold-warm type noise that the invention provides a kind of high-quality erasure effect prevents case, this noise prevents the noise that case had produced both can alleviate thermantidote rotation time, also the noise wavelength producing can not be subject to thermantidote rotation time affects and brings into play erasure effect, also can be for except thermantidote, other exists the machine of noise source.
Brief description of the drawings
Fig. 1 is structural plan figure of the present utility model.
Fig. 2 is the cross-sectional view of Fig. 2 A-A line.
In figure: 1 thermantidote 2 off-premises station main body 3 sound insulation material cover layer 4 suction inlet 5 top edge 6 interfere type sound arrester 7 peripheral cells 8 are taken into mouthful 9 sound-proof wall baffle plate 10 erecting bed 11 hollow pipeline 12 sound-insulating covering 13 exhaust outlets
Detailed description of the invention
Describe specific embodiments of the invention in detail below in conjunction with technical scheme and accompanying drawing.
As shown in Figure 1-2, adopt quieter material to form tubular covering part 3, it is longer than outdoor air regenerating device 2, to offering suction inlet 4 along place under the left and right wall of covering part 3.Upper along portion 5 inner sides at the wall all around of this covering part 3, the sound wave that outdoor air regenerating device 2 is sent being carried out to the interfere type silencing means 6 of noise abatement is fixed by erecting bed 10, form the direct transaudient outlet exhaust outlet 13 of holding concurrently, it can allow remaining noise content to pass through around interfere type silencing means 6.Adopt above-mentioned sound-proof wall material to set up peripheral cell 7 in suction inlet 4 outsides, offer in the position corresponding with suction inlet 4, the wall place of peripheral cell 7 and be taken into mouth 8, set up at suction inlet 4 and between being taken into mouthfuls 8 the sound-proof wall baffle plate 9 that includes sound absorber, the area of sound-proof wall baffle plate 9 is greater than suction inlet 4 and is taken into mouth 8, the outer gas that the entrance 8 of asking for enters is roundabout in the outward flange of baffle plate 9, so that it flows into suction inlet 4.
This interfere type silencing means 6 as shown in Figure 1, 2, includes hollow pipeline 11; It has the pipeline that some length does not wait, the above-mentioned a part of noise sending with the outdoor air regenerating device 2 of thermantidote of tolerable be by manufacturing the transaudient ducted body of refraction of phase difference, is intended to the upper end 5 of same covering part 3 and the common reciprocation of erecting bed 10 and uses.
Due to without hollow pipeline 11, thereby produce phase place between the transaudient and noise that exhaust outlet 13 sends of refraction by the hollow pipeline 11 of above-mentioned ducted body and have difference, the destruction interference forming is thus upper outside generation of ducted body, and noise reduction scope is the upper periphery of tubular covering part 3 and the top place at this place thereof.
Now, quieter material covering part 3 and outer gas are taken into the noise reduction work of mouth 4 also to carry out, and both compound results impel the peripheral part of covering part 3 also to carry out noise reduction.The amount of phase difference reflecting between transaudient and directly transaudient can be by the poor decision of length of pipe, and in the time that this residual quantity becomes large, noise reduction scope also increases.
In addition, the air-conditioning equipment noise that the utility model is relevant prevents case, sound refraction and the interference of sound bringing because of existence such as baffle plate 9 and hollow pipelines 11 and to reach erasure effect by sound-absorbing material be mathematical, particularly as above-mentioned mentioning on just like that, the generation that reflects the phase difference between transaudient and directly transaudient has benefited from the existence of hollow pipeline 11 and the outlet 13 thereof of ducted body.Interfere the erasure effect of facilitating for refraction, interference and the sound-absorbing material thereof of tut more obvious by the damage type due to the deviation of above-mentioned phase place, noise reduction method as compared with the past, the method is more efficient.In addition, top is open, is therefore convenient to heat radiation.

Claims (1)

1. the noise of an outdoor air regenerating device prevents case, it is characterized in that this noise prevents that case from comprising the tubular cover layer that quieter material forms, outer gas is taken into mouth, erecting bed, the hollow pipeline of ducted body and the transaudient outlet exhaust outlet of holding concurrently, noise reduction material cover layer arranges higher than outdoor air regenerating device, Xia Yanchu at the tectal left and right of noise reduction material wall offers suction inlet, upper along portion inner side at the wall all around of this covering part, the sound wave that outdoor air regenerating device is sent being carried out to the interfere type silencing means of noise abatement is fixed by erecting bed, form the direct transaudient outlet exhaust outlet of holding concurrently, it is around interfere type silencing means, can allow remaining noise content to pass through, adopt sound-proof wall material to set up peripheral cell in suction inlet outside, offer and be taken into mouth in the position corresponding with suction inlet, the wall place of peripheral cell, at suction inlet and be taken into and set up the sound-proof wall baffle plate that includes sound absorber between mouth, the area of sound-proof wall baffle plate is greater than suction inlet and is taken into mouth, the outer gas that the entrance of asking for enters is roundabout in the outward flange of baffle plate, so that it flows into suction inlet.
CN201420165374.4U 2014-04-06 2014-04-06 Noise prevention box of outdoor air exchange device Active CN203771587U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420165374.4U CN203771587U (en) 2014-04-06 2014-04-06 Noise prevention box of outdoor air exchange device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420165374.4U CN203771587U (en) 2014-04-06 2014-04-06 Noise prevention box of outdoor air exchange device

Publications (1)

Publication Number Publication Date
CN203771587U true CN203771587U (en) 2014-08-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420165374.4U Active CN203771587U (en) 2014-04-06 2014-04-06 Noise prevention box of outdoor air exchange device

Country Status (1)

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CN (1) CN203771587U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109386469A (en) * 2017-08-11 2019-02-26 苏州旺特福机械设备有限公司 Sound attenuator is used in a kind of test of pump noise

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109386469A (en) * 2017-08-11 2019-02-26 苏州旺特福机械设备有限公司 Sound attenuator is used in a kind of test of pump noise

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