CN203476834U - Impedance combination type disc-type silencer - Google Patents
Impedance combination type disc-type silencer Download PDFInfo
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- CN203476834U CN203476834U CN201320565096.7U CN201320565096U CN203476834U CN 203476834 U CN203476834 U CN 203476834U CN 201320565096 U CN201320565096 U CN 201320565096U CN 203476834 U CN203476834 U CN 203476834U
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- wall
- inwall
- air intake
- vertical baffle
- housing
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Abstract
The utility model discloses an impedance combination type disc-type silencer which comprises a tubular shell, wherein one end of the shell is closed, and the other end of the shell is open. A flange edge is formed on the outer wall of the open end of the shell and extends outward in the radial direction, and multiple rows of air inlet grooves are circularly formed in the outer wall of the shell. Inner wall air inlet grooves are circularly formed in the inner wall and correspond to the air inlet grooves in the outer wall. Annular rings are arranged between the air inlet grooves and the inner wall air inlet grooves corresponding to the air inlet grooves. The outer walls of the upper portions of the annular rings are fixedly welded to the side walls of the air inlet grooves, and the outer walls of the lower portions of the annular rings are fixedly welded to the side walls of the inner wall air inlet grooves, so that air inlet through grooves are formed. A filter is arranged in the shell, the air inlet through grooves correspond to the outer side wall of the filter, a cavity between the outer wall and the inner wall is filled with silencing materials, and a plate frame shaped like the Chinese character 'mi' is arranged in the shell inner cavity between the filter and the flange edge. The silencer not only can silence high-frequency noise and low-frequency noise and improve the silencing effect, but also can filter impurities and prevent the impurities from entering an air blower and affecting using.
Description
Technical field:
The utility model relates to ventilation equipment technical field, relates in particular impedance complex formula disk-type silencer for a kind of blower.
Background technique:
Silencing apparatus is a kind of a kind of parts that stop sound transmission and allow air-flow to pass through, the important measures of eliminating air power noise, silencing apparatus is generally arranged on the air-flow path of aerodynamic force equipment or the device of the reduction noise in inlet and exhaust system, and can stop sound wave propagation, allow passing through of air-flow, existing silencing apparatus is the effective tool of controlling noise.
There are in the market a lot of single dissipative muffler or reactive mufflers.Dissipative muffler, is the sound absorption of utilizing muffler material or sound absorption structure, makes to decay with distance along the noise of pipe transmmision, thereby reaches noise elimination object, and this silencing apparatus has good soundproof effect to high-frequency noise, but poor to low frequency acoustic attenuation performance; And reactive muffler, that unexpected expansion by means of pipeline section (or contraction) or side connect resonant cavity, make to Sounnd source direction, to reflect back in sudden change place along the sound wave of some frequency of pipe transmmision, thereby reach noise elimination object, it is relatively applicable to eliminate Low Medium Frequency noise, and poor to the noise elimination effect of high-frequency noise.So an independent employing is resistive or reactive muffler can not reach desirable soundproof effect, thereby environment is produced to certain impact.
And existing disk-type silencer, has two housings that edge closes mutually conventionally, establishes some row's vent holes, and be provided with muffler material in housing pressed on ring in housing.Between two housings that edge closes mutually, be provided with regulator and can regulate two cooperate degrees between housing, to regulate the quantity of vent hole, and then the ventilation of adjusting combustor blast machine.Adopt the disk-type silencer of this form, its structure is more complicated, fabricating cost is also higher, and when reality is used, the adjusting of air quantity there is no obvious effect, because determine when designing at the equipment Air Quantity Required to oil-fired boiler and so on, the ventilator mating or the air quantity of blower are also determined, according to the air quantity of the silencing apparatus of its design, also match with it like this, it is in actual use without carrying out the adjusting of air quantity again, simultaneously, existing blower easily sucks the impurity such as some dusts in use, affected the burning of burner, when serious, even can cause the fault of burner.
Model utility content:
The purpose of this utility model is exactly the deficiency for prior art, and a kind of impedance complex formula disk-type silencer is provided, it not only can but also can have been eliminated the noise to low frequency noise to high frequency, improved the effect of eliminating the noise, simultaneously also can impurity screening, prevent that impurity from entering blower impact and using.
Technology solution of the present utility model is as follows:
A kind of impedance complex formula disk-type silencer, the housing that comprises the tubular of one end sealing, an end opening, on the outer wall of the open end of described housing, form the flange edge that outward radial extends, on the outer wall of housing, be equipped with some row's air intake ducts, on inwall, be equipped with the inwall air intake duct corresponding with air intake duct on outer wall; Annular ring is in the air intake duct inwall air intake duct corresponding with air intake duct therewith, and the sidewall upper and lower part outer wall that the external wall of upper portion of annular ring is weldingly fixed on air intake duct is weldingly fixed on the sidewall of inwall air intake duct, forms air intake groove; In housing, be provided with filter, the outer side wall of filter is pressed against in the interior sidewall surface of inwall, air intake groove, facing to the outer side wall of filter, is filled with quieter material in the cavity between outer wall and inwall, is provided with a meter font grillage in the housing inner chamber between filter and flange edge.
Described rice font grillage is by four oblique dividing plates, upper vertical baffle, lateral partitions and lower vertical baffle form, the lower side of upper vertical baffle is fixed on the middle part of the upper plane of lateral partitions, the upper side edge of upper vertical baffle is fixed in the interior sidewall surface of inwall, the lower side of lower vertical baffle is fixed in the interior sidewall surface of inwall, the upper side edge of lower vertical baffle is fixed on the middle part of the lower plane of lateral partitions, the left and right sides of the left and right sides of upper vertical baffle and lower vertical baffle is equipped with oblique dividing plate, one side of oblique dividing plate is fixed in the interior sidewall surface of inwall, another side is fixed in lateral partitions.
Described inwall, four oblique dividing plates, upper vertical baffle, lateral partitions and lower vertical baffles are porous slab, and quieter material is glass wool.
Described filtration device structure is, the upper end of circular filter net is fixed on annular ring upper and lower end and is fixed on lower annular ring, and the outer side wall of circular filter net is pressed against in the interior sidewall surface of inwall.
The outer wall of the nearly open end of housing and inwall are cone shape, and the opening diameter of housing is less than the diameter at middle part of the inwall of housing.
The beneficial effects of the utility model are:
Its inwall is porous slab, and between the outer wall of housing and inwall, be filled with quieter material, this can carry out noise reduction to high-frequency noise, it is resistance noise reduction, simultaneously, four oblique dividing plates, upper vertical baffle, lateral partitions and lower vertical baffle form rice font grillage, this has changed baffler inner space general layout, make baffler inside be divided into a plurality of small space, and the outer wall of the nearly open end of housing and inwall are cone shape, the opening diameter of housing is less than the diameter at middle part of the inwall of housing, pipeline section is dwindled, this can eliminate the noise to low frequency noise, it is reactive muffling, improved like this effect of eliminating the noise.
And its filter can prevent that the impurity such as some extraneous dusts from sucking, guarantee the normal operation of burner.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is sectional view of the present utility model;
Fig. 3 removes the partial structurtes schematic diagram of annular ring between the outer wall of housing of the present utility model and inwall;
Fig. 4 is the structural representation of filter;
Fig. 5 is the structural representation of annular ring.
Embodiment:
Embodiment: see shown in Fig. 1 to 5 (in order to make to show clearly, porous on inwall 3 in Fig. 2 does not show), a kind of impedance complex formula disk-type silencer, the housing 1 that comprises the tubular of one end sealing, an end opening, on the outer wall 2 of the open end of described housing 1, form the flange edge 21 that outward radial extends, on the outer wall 2 of housing 1, be equipped with some row's air intake ducts 22, on inwall 3, be equipped with the inwall air intake duct 31 corresponding with air intake duct 22 on outer wall 2; Annular ring 10 is at air intake duct 22 with therewith in the corresponding inwall air intake duct 31 of air intake duct 22, and the sidewall upper and lower part outer wall that the external wall of upper portion of annular ring 10 is weldingly fixed on air intake duct 22 is weldingly fixed on the sidewall of inwall air intake duct 31, forms air intake groove 20; In housing 1, be provided with filter 30, the outer side wall of filter 30 is pressed against in the interior sidewall surface of inwall 3, air intake groove 20 is facing to the outer side wall of filter 30, in cavity between outer wall 2 and inwall 3, be filled with quieter material 4, in housing 1 inner chamber between filter 30 and flange edge 21, be provided with a meter font grillage 9.
Described rice font grillage 9 is by four oblique dividing plates 8, upper vertical baffle 6, lateral partitions 5 and lower vertical baffle 7 form, the lower side of upper vertical baffle 6 is fixed on the middle part of the upper plane of lateral partitions 5, the upper side edge of upper vertical baffle 6 is fixed in the interior sidewall surface of inwall 3, the lower side of lower vertical baffle 7 is fixed in the interior sidewall surface of inwall 3, the upper side edge of lower vertical baffle 7 is fixed on the middle part of the lower plane of lateral partitions 5, the left and right sides of the left and right sides of upper vertical baffle 6 and lower vertical baffle 7 is equipped with oblique dividing plate 8, one side of oblique dividing plate 8 is fixed in the interior sidewall surface of inwall 3, another side is fixed in lateral partitions 5.
Described inwall 3, four oblique dividing plates 8, upper vertical baffle 6, lateral partitions 5 and lower vertical baffles 7 are porous slab, and quieter material 4 is glass wool.
Described filter 30 structures are, the upper end of circular filter net 301 is fixed on annular ring 302 upper and lower ends and is fixed on lower annular ring 303, and the outer side wall of circular filter net 301 is pressed against in the interior sidewall surface of inwall 3.
The outer wall 2 of the nearly open end of housing 1 and inwall 3 are cone shape, and the opening diameter of housing 1 is less than the diameter at middle part of the inwall 3 of housing 1.
Working principle: in the inner chamber that wind enters housing 1 by air intake groove 20, (during air intake groove 20, ring is located on housing 1, it makes the air intake even), and be some nonwovens through the general circular filter net 301 adopting of the circular filter net 301(of filter 30) filtration, the impurity such as some dusts are filtered, when the wind sucking flows in inner chamber by the noise reduction that will absorb sound of inwall 3 and interior quieter material 4 thereof, then pass through the effect of cone shape inwall 3 of the nearly open end of meter font grillage 9 and housing 1, again eliminate the noise, improved the effect of eliminating the noise.
Claims (5)
1. an impedance complex formula disk-type silencer, the housing (1) that comprises the tubular of one end sealing, an end opening, it is characterized in that: on the outer wall (2) of the open end of described housing (1), form the flange edge (21) that outward radial extends, on the outer wall (2) of housing (1), be equipped with some row's air intake ducts (22), on inwall (3), be equipped with the inwall air intake duct (31) corresponding with air intake duct (22) on outer wall (2); Annular ring (10) is at air intake duct (22) with therewith in the corresponding inwall air intake duct (31) of air intake duct (22), the sidewall upper and lower part outer wall that the external wall of upper portion of annular ring (10) is weldingly fixed on air intake duct (22) is weldingly fixed on the sidewall of inwall air intake duct (31), forms air intake groove (20); In housing (1), be provided with filter (30), the outer side wall of filter (30) is pressed against in the interior sidewall surface of inwall (3), air intake groove (20) is facing to the outer side wall of filter (30), in cavity between outer wall (2) and inwall (3), be filled with quieter material (4), in housing (1) inner chamber between filter (30) and flange edge (21), be provided with a meter font grillage (9).
2. a kind of impedance complex formula disk-type silencer according to claim 1, it is characterized in that: described rice font grillage (9) is by four oblique dividing plates (8), upper vertical baffle (6), lateral partitions (5) and lower vertical baffle (7) form, the lower side of upper vertical baffle (6) is fixed on the middle part of the upper plane of lateral partitions (5), the upper side edge of upper vertical baffle (6) is fixed in the interior sidewall surface of inwall (3), the lower side of lower vertical baffle (7) is fixed in the interior sidewall surface of inwall (3), the upper side edge of lower vertical baffle (7) is fixed on the middle part of the lower plane of lateral partitions (5), the left and right sides of the left and right sides of upper vertical baffle (6) and lower vertical baffle (7) is equipped with oblique dividing plate (8), one side of oblique dividing plate (8) is fixed in the interior sidewall surface of inwall (3), another side is fixed in lateral partitions (5).
3. a kind of impedance complex formula disk-type silencer according to claim 1, it is characterized in that: described inwall (3), four oblique dividing plates (8), upper vertical baffle (6), lateral partitions (5) and lower vertical baffle (7) are porous slab, and quieter material (4) is glass wool.
4. a kind of impedance complex formula disk-type silencer according to claim 1, it is characterized in that: described filter (30) structure is, the upper end of circular filter net (301) is fixed on annular ring (302) upper and lower end and is fixed on lower annular ring (303) above, and the outer side wall of circular filter net (301) is pressed against in the interior sidewall surface of inwall (3).
5. a kind of impedance complex formula disk-type silencer according to claim 1, it is characterized in that: the outer wall (2) of the nearly open end of housing (1) and inwall (3) are cone shape, the opening diameter of housing (1) is less than the diameter at middle part of the inwall (3) of housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565096.7U CN203476834U (en) | 2013-09-12 | 2013-09-12 | Impedance combination type disc-type silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565096.7U CN203476834U (en) | 2013-09-12 | 2013-09-12 | Impedance combination type disc-type silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476834U true CN203476834U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320565096.7U Expired - Fee Related CN203476834U (en) | 2013-09-12 | 2013-09-12 | Impedance combination type disc-type silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286533A (en) * | 2017-01-09 | 2018-07-17 | 中国科学院声学研究所 | A kind of axial flow blower air inlet silencer |
-
2013
- 2013-09-12 CN CN201320565096.7U patent/CN203476834U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286533A (en) * | 2017-01-09 | 2018-07-17 | 中国科学院声学研究所 | A kind of axial flow blower air inlet silencer |
| CN108286533B (en) * | 2017-01-09 | 2020-06-16 | 中国科学院声学研究所 | Silencer for air inlet of axial flow fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20160912 |