CN205639072U - Can two return circuits of dismantlement type ventilation cooling sound insulation cover - Google Patents
Can two return circuits of dismantlement type ventilation cooling sound insulation cover Download PDFInfo
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- CN205639072U CN205639072U CN201620476673.9U CN201620476673U CN205639072U CN 205639072 U CN205639072 U CN 205639072U CN 201620476673 U CN201620476673 U CN 201620476673U CN 205639072 U CN205639072 U CN 205639072U
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- sound insulation
- insulation cover
- acoustic hood
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Abstract
The utility model relates to a sound insulation cover especially relates to a can two return circuits of dismantlement type ventilation cooling sound insulation cover. Its mainly be solve sound insulation cover installation back that prior art exists dismantle troublesome, generally will be badly damaged after the fan overhaul, the unable reuse who realizes the sound insulation cover, the result of ventilating heat dissipation of totality is relatively poor in the cover, finally lead to the sound insulation cover in the temperature rise, influence the technical problem of unit operation etc.. The utility model discloses a cover body (1), the one end of the cover body (1) be equipped with air intake (2), the top of the cover body is equipped with motor heat dissipation mouth (3), the thermovent of airing exhaust (4), all is equipped with the fan in air intake, motor heat dissipation mouth, the thermovent of airing exhaust, air intake department is equipped with air inlet silencer (5), motor heat dissipation mouth department is equipped with fan silencer (6), the thermovent department of airing exhaust is equipped with air exhaust silencer (7).
Description
Technical field
This utility model relates to a kind of acoustic hood, especially relates to a kind of dismountable type double loop ventilation and heat acoustic hood.
Background technology
Deepen continuously along with industrialized, the necessary electromotor scale of all kinds of large fans (the particularly primary air fan of power plant, pressure fan and air-introduced machine etc.) the most constantly increases, caused strong noise height vibration pollution is also increasingly to attract much attention, and becomes the key factor affecting environment protection standard and occupational health.During traditional large fan noise abatement, the basic skills taked is for insulating against sound to fan body, eliminate the noise or vibration damping and noise reducing process, and often have ignored the effective sound insulation and noise reducing to its supporting large-size machine and process.Though some has also carried out Noise Treatment to necessary electromotor, but because the problem such as ventilation and heat problem or maintenance inconvenience eventually becomes a kind of ornaments.
Concrete grammar and weak point are as follows:
(1) fan body noise reduction technique: fan body and airduct tube wall carry out damping wrapping and sound absorption wrapping in blower fan region, can effectively reduce the average noise of entire area, but can't resolve the other strong noise of blower motor and pollute.Through my unit field measurement, near blower motor body at 1m, its Leq value still reaches more than 90 decibels, causes this region overall noise to be significantly larger than the limit value (85 decibels) of " occupational health health standards " defined.Carry out repair and maintenance personnel be still in the working environment of a high noise levels daily, it is achieved the not target of occupational health protection.
(2) large area isolation booth technique: fan body, pipeline and motor region are accounted for by this technique as entirety, is enclosed within unified for above equipment in a large-scale isolation booth, and all devices maintenance, regular maintenance are all implemented in isolation booth.Though this method can effectively solve fan noise to factory outside radiation, but owing to isolation booth interior noise level is the biggest, it is impossible to solve the needs of occupational health protection.
Conventional motor acoustic hood Processing tecchnics (with the first technique with the use of): existing frequently-used acoustic hood is generally frame-type single channel ventilation and heat acoustic hood, first use structure steel fabrication skeleton, then supporting sound insulationg board and ventilation equipment are placed on framework.Although the method can reduction blower motor noise largely, but due to dismounting trouble after installing, typically will be badly damaged after blower fan overhaul, it is impossible to realize the recycling of acoustic hood.Simultaneously as single loop aeration radiation system, the hot-air causing motor self-radiating system to be got rid of mixes with cold air in cover, and ventilation and heat overall in being unfavorable for cover ultimately results in sound insulation case temperature and raises, affects unit operation.
Utility model content
This utility model is to provide a kind of dismountable type double loop ventilation and heat acoustic hood, it mainly solves dismounting trouble after the acoustic hood existing for prior art is installed, typically will be badly damaged after blower fan overhaul, the recycling of acoustic hood cannot be realized, result of ventilating heat dissipation overall in cover is poor, ultimately result in sound insulation case temperature to raise, affect the technical problem of unit operation etc..
Above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals:
Dismountable type double loop of the present utility model ventilation and heat acoustic hood, including cover body, one end of described cover body is provided with air inlet, the top of cover body is provided with motor radiating mouth, air discharging and radiating mouth, it is designed with blower fan in air inlet, motor radiating mouth, air discharging and radiating mouth, air inlet is provided with air-inlet sound eliminator, is provided with fans silencer, is provided with air-discharge silencer at air discharging and radiating mouth at motor radiating mouth.This utility model is spliced into a device fully sealed, and each sound insulation module is made up of sound absorption material, sound insulationg board and acoustic hood steel skeleton, and acoustic hood steel skeleton is placed in sound insulationg board.When placing wherein for a Fans motor, whole acoustic hood and ground just can be closed blower fan sound insulation.The top of acoustic hood is provided with two air-discharge silencers, and one of them is motor self-radiating passage, and another is acoustic hood ventilation heat exchange passage；Acoustic hood is provided with a large-scale air-inlet sound eliminator at air inlet, needs for the air intake within motor self and acoustic hood.Acoustic hood is provided with soundproof door, and the personnel that maintain easily carry out maintenance repair to blower fan；It is provided with high-power exhaust fan in acoustic hood, it can be ensured that air circulation in cover, makes case temperature be consistently lower than the highest limiting temperature of blower motor.Acoustic hood the most each module sound absorption is functional, is additionally provided with three independent acoustic filters, respectively air-inlet sound eliminators, motor air-discharge silencer and acoustic hood air-discharge silencer.Three acoustic filters of the present utility model each operate, and do not interfere with each other, original noise and quadratic noise transmission to external world in cover is greatly reduced.Being different from common acoustic hood, acoustic hood of the present utility model is good in order to ensure heat dispersion, is equipped with double loop cooling system.The two public air-inlet sound eliminators in set loop.First loop is by air-inlet sound eliminator, cooling fan and fans silencer that blower motor carries form, this loop, by the outer supporting acoustic filter of pipeline closed connecting fan motor body and cover, is that produced by blower fan, heat energy directs out discharge, prevents and treats in hot air reflow cover；Second servo loop is by air-inlet sound eliminator, and axial flow blower forms with air-discharge silencer, this loop Main Function be the heat that acoustic hood endogenous cause of ill blower motor heat transfer is produced in very first time hood, control sound insulation case temperature.
As preferably, described cover body side is provided with soundproof door.
As preferably, the top of described cover body is provided with temperature sensing device, and temperature sensing device is by the blower fan at temperature detect switch (TDS) connection motor radiating mouth, air discharging and radiating mouth.It is different from the natural air inlet/outlet cooling system of common acoustic hood, the acoustic hood of this research is for guaranteeing that blower motor will not cause chaser because ambient temperature is too high, this acoustic hood takes natural air inlet actively air draft, at acoustic hood top equipped with exhaust blower, the circulation of cover inner air and outer air can be promoted, make the case temperature will not be too high and cause motor to trip, affect whole electric power system, and exhaust blower is designed with temp-sensing device and temperature detect switch (TDS), when temperature is less than lower limit temperature, axial flow blower small-power operates or shuts down, the high-power operating of axial flow blower when temperature is higher than ceiling temperature, so can greatly reduce the waste of manual operation and electric power resource.
As preferably, the outer surface of described cover body is provided with the inserted connector can being connected with other cover body.The steel structure framework of tradition acoustic hood is placed in Felt by this utility model so that it is become the most independent unit module.Assembled and in the future dismantlement work can be carried out at the scene according to installation instructions.Connector uses " inserted " to connect, convenient for assembly, and " inserted " connection simultaneously is possible to prevent noise to pass through from gap.
Therefore, acoustic hood of the present utility model not only self sound absorption is respond well, further provided with three independent acoustic filters, the noisiness outwards transmitted after air inlet/outlet can be substantially reduced, acoustic hood uses modularized design, it is possible not only to reduce in-site installation and the time of dismounting, it may also be ensured that the recycling of acoustic hood, acoustic enclosure structure is tight, easy for installation, can realize organically combining together with blower fan, it is ensured that whole structure neat and artistic.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Parts, position and numbering in figure: cover body 1, air inlet 2, motor radiating mouth 3, air discharging and radiating mouth 4, air-inlet sound eliminator 5, fans silencer 6, air-discharge silencer 7, soundproof door 8, temperature sensing device 9, temperature detect switch (TDS) 10, inserted connector 11.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment: the dismountable type double loop ventilation and heat acoustic hood of this example, such as Fig. 1, including cover body 1, one end of cover body is provided with air inlet 2, the top of cover body is provided with motor radiating mouth 3, air discharging and radiating mouth 4, is designed with blower fan in air inlet, motor radiating mouth, air discharging and radiating mouth, and air inlet is provided with air-inlet sound eliminator 5, it is provided with fans silencer 6 at motor radiating mouth, at air discharging and radiating mouth, is provided with air-discharge silencer 7.Cover body side is provided with soundproof door 8.The top of cover body is provided with temperature sensing device 9, and temperature sensing device connects the blower fan at motor radiating mouth 3, air discharging and radiating mouth 4 by temperature detect switch (TDS) 10.The outer surface of cover body is provided with the inserted connector 11 can being connected with other cover body.
Sucking hot blast at air inlet 2, through two circuit heat radiation, hot blast is discharged at motor radiating mouth 3, air discharging and radiating mouth 4.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and change or the modification made all are contained among the scope of the claims of the present utility model.
Claims (4)
1. a dismountable type double loop ventilation and heat acoustic hood, including cover body (1), it is characterized in that one end of described cover body (1) is provided with air inlet (2), the top of cover body is provided with motor radiating mouth (3), air discharging and radiating mouth (4), it is designed with blower fan in air inlet, motor radiating mouth, air discharging and radiating mouth, air inlet is provided with air-inlet sound eliminator (5), is provided with fans silencer (6) at motor radiating mouth, is provided with air-discharge silencer (7) at air discharging and radiating mouth.
Dismountable type double loop the most according to claim 1 ventilation and heat acoustic hood, it is characterised in that described cover body (1) side is provided with soundproof door (8).
Dismountable type double loop the most according to claim 1 and 2 ventilation and heat acoustic hood, it is characterized in that the top of described cover body (1) is provided with temperature sensing device (9), temperature sensing device is by temperature detect switch (TDS) (10) connection motor radiating mouth (3), the blower fan at air discharging and radiating mouth (4) place.
Dismountable type double loop the most according to claim 1 and 2 ventilation and heat acoustic hood, it is characterised in that the outer surface of described cover body (1) is provided with the inserted connector (11) can being connected with other cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476673.9U CN205639072U (en) | 2016-05-24 | 2016-05-24 | Can two return circuits of dismantlement type ventilation cooling sound insulation cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476673.9U CN205639072U (en) | 2016-05-24 | 2016-05-24 | Can two return circuits of dismantlement type ventilation cooling sound insulation cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639072U true CN205639072U (en) | 2016-10-12 |
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ID=57054731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620476673.9U Active CN205639072U (en) | 2016-05-24 | 2016-05-24 | Can two return circuits of dismantlement type ventilation cooling sound insulation cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639072U (en) |
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2016
- 2016-05-24 CN CN201620476673.9U patent/CN205639072U/en active Active
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