CN87208108U - Low noise draught fan - Google Patents
Low noise draught fan Download PDFInfo
- Publication number
- CN87208108U CN87208108U CN 87208108 CN87208108U CN87208108U CN 87208108 U CN87208108 U CN 87208108U CN 87208108 CN87208108 CN 87208108 CN 87208108 U CN87208108 U CN 87208108U CN 87208108 U CN87208108 U CN 87208108U
- Authority
- CN
- China
- Prior art keywords
- draught fan
- muffler plate
- rubber
- panel
- low noise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to an improved draught fan, composed of the draught fan, an acoustic panel and a rubber vibration isolator. Circular holes are distributed homogeneously on the surface of the acoustic panel to play a role of sound absorption. Through holes arranged homogeneously are drilled on a case panel at the side face of the draught fan to destroy the source of sound. The acoustic panel is pasted on the case panel of the draught fan and is fixed by a pressing panel screw. The vibration isolator is arranged between the draught fan and a base seat to make the draught fan and the base seat connected in an elastic way and to play a role of cutting vibration source. The utility model has the advantages of simple structure and outstanding effect of noise reduction.
Description
The utility model is that existing induced draught fan is improved, and makes it to become a kind of low noise blower unit.
Along with the development of modernization industry, the caused by noise public hazards have become a serious problem.It not only influences people's work and rest, and can cause multiple disease.In present mechanical noise, the noise that induced draught fan produced nearly all surpasses the noise standard A85 decibel that country allows.With original technology governance blower fan, every needs about 2500 yuan of increase expense, if adopt this device, every only increases about 170 yuan, and noise is reduced to below the mark that country allows.
The method of control noise has a lot, and the utility model mainly is to reach this purpose with the method that destroy to reach completely cuts off sound source, alleviates vibrations.Main points of the present utility model are: it is made up of muffler plate, induced draught fan and rubber absorbers.Muffler plate is a raw material with pulverized fuel ash, waste paper scrap, stirs the back compression molding with sodium silicate.Muffler plate two surfaces are pressed with the circular hole of even cloth, in order to play sound absorption.Be used to seal the muffler plate of bearing support, the middle wood veneer that adopts is made skeleton.The side coverboard of induced draught fan is drilled with evenly distributed open-work, and its purposes is to destroy sound source.
Sodium silicate and double-ash powder are deployed into paste, muffler plate are sticked on the blower fan coverboard, again with pressing plate and screw with it.Rubber absorbers are by rubber body, bury part etc. and constitute, and are placed between induced draught fan and the basis seat, make it elasticity and connect, and play the effect of cutting off focus.
Optimum scheme of the present utility model is: with 4
#Blower fan, muffler plate material adopt the waste paper scrap of pulverized fuel ash (being granular) and 10%, and with the sodium silicate stirring, its feel reaches holds agglomeratingly, and one by being broken degree, compression molding then.After drying under 75 ℃ the temperature, the coating that surperficial spary is made with sodium silicate and double-ash powder.The unit weight of muffler plate is 450～600Kg/m
3The muffler plate that is used for topped blower fan side coverboard, its thickness are 40mm, compacting circular hole φ 8mm, dark 13mm, two hole centre distance 15mm.Be used to seal the muffler plate of bearing support, middle is skeleton with wood veneer (three layers), but total thickness still is 40mm.The blower fan side coverboard bit bore of φ 4mm, two hole centre distance 15mm.Adhesive adopts sodium silicate, double-ash powder and 10% cement etc., stirs into dried pasty state, muffler plate and electric fan shell bonding after, fix with M6 long spiro nail increased pressure board again.
The rubber material of rubber absorbers must possess good endurance and dynamic aging performance, and it adopts natural rubber and butadiene rubber and usefulness, doses other rubber chemicals.Burying part is the nut that outer marginal zone one protrudes round platform, and it cooperates with a connection piece during installation.The high 70mm of rubber absorbers, external diameter 60mm, internal diameter 25mm, the fang bolt of Pei Heing is M14 with it.
The utility model can be used as a kind of new product production, and the technical essential that it adopts also can be transformed the equipment that is using at present. It belongs to the utility model more than two of a total inventive concept, also can be low noise air-blast device or low noise water pump etc. such as it.
Description of drawings:
Accompanying drawing 1 is a low noise blower unit assembled state plan view, and 1 is used for the muffler plate of topped blower fan coverboard, the induced draught fan side coverboard after 2 borings among the figure.
Accompanying drawing 2 is low noise blower unit assembled state side views, muffler plate, 4 rubber absorbers of 3 sealing bearing supports among the figure
Accompanying drawing 3 is the A-A generalized section, the fixedly muffler plate, the blower fan side coverboard after 2 borings of screw, the 1 induced draught fan side of muffler plate of 5 pressing plates, 6 among the figure.
Accompanying drawing 4 is the muffler plate schematic representation of sealing bearing support, 7 muffler materials, 8 wood veneers among the figure.
Accompanying drawing 5 is the rubber absorbers schematic representation, and 10 bury part, 11 rubber body, 13 fang bolts, 12 links, 9 induced draught fan seat legs among the figure.
Claims (2)
1, a kind of low noise blower unit is made up of induced draught fan, muffler plate and rubber absorbers.It is characterized in that induced draught fan side coverboard is drilled with evenly distributed open-work, there is the circular hole of compression moulding on muffler plate two surfaces, muffler plate sticks on the blower fan coverboard, use pressing plate and screw again, rubber absorbers by rubber body, bury part etc. and constitute, be placed between induced draught fan and the basis.
2,, it is characterized in that having the interior part that buries of a connection piece and rubber body to cooperate by the described rubber absorbers of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87208108 CN87208108U (en) | 1987-05-19 | 1987-05-19 | Low noise draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87208108 CN87208108U (en) | 1987-05-19 | 1987-05-19 | Low noise draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87208108U true CN87208108U (en) | 1988-02-03 |
Family
ID=4823439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87208108 Withdrawn CN87208108U (en) | 1987-05-19 | 1987-05-19 | Low noise draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87208108U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660186B (en) * | 2009-10-09 | 2011-01-19 | 哈尔滨工业大学 | Low-noise micro-arc oxidation device |
| CN102400958A (en) * | 2011-11-18 | 2012-04-04 | 南通大通宝富风机有限公司 | Multifunctional nuclear power fan |
-
1987
- 1987-05-19 CN CN 87208108 patent/CN87208108U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660186B (en) * | 2009-10-09 | 2011-01-19 | 哈尔滨工业大学 | Low-noise micro-arc oxidation device |
| CN102400958A (en) * | 2011-11-18 | 2012-04-04 | 南通大通宝富风机有限公司 | Multifunctional nuclear power fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |