CN202948716U - Silencer with cylindrical thick-hole type damping diffuser - Google Patents
Silencer with cylindrical thick-hole type damping diffuser Download PDFInfo
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- CN202948716U CN202948716U CN 201220725077 CN201220725077U CN202948716U CN 202948716 U CN202948716 U CN 202948716U CN 201220725077 CN201220725077 CN 201220725077 CN 201220725077 U CN201220725077 U CN 201220725077U CN 202948716 U CN202948716 U CN 202948716U
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- sound
- fan diffuser
- damping fan
- flow
- air
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Abstract
The present utility model relates to a silencer with a cylindrical thick-hole type damping diffuser, as the prior silencer cannot effectively reduce air flow velocity and pressure. The silencer comprises a tubular shell with a through-flow airway, and a sound-absorbing tube fitted with the inner side wall of the shell, two ends of the shell are respectively provided with a front cover plate with an air outlet and a rear cover plate with an air inlet, an annular damping diffuser with air holes densely covered on the surface is arranged in an installing gap between a supporting plate and the rear cover plate, and the through-flow airway is blocked by the damping diffuser. Through adding the annular damping diffuser which is densely provided with holes and used for blocking the through-flow airway on the prior silencer structure, high-pressure and high-speed air flow enters into the air holes, kinetic energy of flowing of the air flow is consumed, thus speed reducing and voltage reducing effects of the air flow can be realized, then the air flow passes through the sound-absorbing tube, the aim of reducing noises is finally reduced, and health of workers can be ensured.
Description
Technical field
The utility model relates to a kind of oxygen nitrogen making machine equipment, is specifically related to a kind of noise reduction use with the sound suppressor of cylindric close cellular type damping fan diffuser.
Background technology
In known technology, the pressure-variable adsorption of Double-Tower Structure (PSA) nitrogen processed, oxygenerating technology are the advanced technologies of nitrogen processed, oxygen at present, and it has the characteristics such as gas purity pollution-free, processed is high, productive rate is high, the overall manufacturing cost is low.This nitrogen processed, oxygenerator have two absorptive separation column alternation gas processed and scavenge, before a tower end-of-job switches to another tower work, the adsorption tower that finishes gas work processed need to scavenge, because this exhaust process is very short, generally need be in seconds drained, and air capacity is large, the relevant volume of equipment of exhaust is limited, therefore it is very high to be deflated gas velocity and the current density of body, produce thus very large noise, and noise level is directly proportional to gas velocity and pressure.The patent No. is that 201020110236.8 exhaust box comprises shell and is built in sound-absorbing pipe in shell, be provided with the through-flow air flue in the sound-absorbing pipe, the high speed and high pressure air-flow of input in exhaust box can only play reduction of speed by the wireway in hush pipe, with the pressure effect, its noise reduction to noise is not obvious, can cause damage to health.
The utility model content
In order to solve the deficiencies in the prior art, the utility model provides the sound suppressor with cylindric close cellular type damping fan diffuser of a kind of effective reduction gas velocity and pressure, and further purpose of the present utility model is to provide a kind of sound suppressor with cylindric close cellular type damping fan diffuser of effective reduction noise.
the utility model is realized in the following manner: a kind of sound suppressor with cylindric close cellular type damping fan diffuser, comprise the tube-like envelope that includes the through-flow air flue and the sound-absorbing pipe of fitting with described shell madial wall, described shell two ends are respectively equipped with the front shroud of gas outlet and the back shroud of inlet, described sound-absorbing Guan Yiduan conflicts on the sidewall of described front shroud, the ring-type back up pad that the other end and is built in described shell is connected, be provided with a damping fan diffuser that is cylindric and surperficial densely covered pore in assemblage gap between described back up pad and described back shroud, described through-flow air flue is intercepted by described damping fan diffuser, described pore is distributed in the surperficial surrounding of described cylindric damping fan diffuser in the form of a ring.Intercept the through-flow air flue and be with cylindric close cellular type damping fan diffuser by set up one on the structure of original exhaust box, pass into the pore that is arranged in damping fan diffuser surrounding by the air-flow with high-voltage high-speed, consume the kinetic energy of air current flow, air-flow is played the effect of effective deceleration step-down, again with air-flow by the sound-absorbing pipe, the final purpose that realizes reducing noise guarantees that the workman is healthy; Perforate is not established at described damping fan diffuser middle part, make the gas that flows into from air intake opening directly following current to the through-flow air flue, must change original flow path and detour and pass through from pore, the loss of effective raising to airflow kinetic energy.
As preferably, the cylinder lateral wall of described damping fan diffuser and the madial wall of described shell coupling envelope connect, and are communicated with by described pore between the upper and lower surface of described damping fan diffuser, and described through-flow air flue coordinates formation to bend air flue with described pore.The edge of damping fan diffuser and outer casing inner wall envelope connect, and prevent that air-flow from leaking from both gaps, and the damping fan diffuser is realized air-flow deceleration hypotensive effect by the pore on it, bends air flue and is conducive to consume airflow kinetic energy.
As preferably, be provided with the wireway of a sidewall band through hole in described sound-absorbing pipe, described wireway one end is connected with described back up pad interior ring edge coupling, and the other end seals and is suspended in described sound-absorbing pipe.The through hole of wireway sidewall is the radial passage, and is vertical with axial through-flow air flue, and runner is beneficial to the resistance when improving air current flow and consumes flowed energy for bending is designed with, make air-flow deceleration antihypertensive effect strengthen, and then improves noise reduction.
As preferably, be provided with a flange outside described back shroud, described flange is taken over the interior ring edge coupling of described back shroud by one and is connected.Described exhaust box is connected on station by flange, and is both simple in structure, is convenient to processing, can also guarantee strength of joint.
The beneficial effects of the utility model: intercept through-flow air flue and the close cellular type damping of band ring-type fan diffuser by set up one on the structure of original exhaust box, pass in pore by the air-flow with high-voltage high-speed, consume the kinetic energy of air current flow, air-flow is played the effect of effective deceleration step-down, the final purpose that realizes reducing noise, guarantee that the workman is healthy, the close cellular type damping of ring-type fan diffuser by the opening at middle part guarantee to connect play unobstructed, be conducive to the less air-flow of pressure flow velocity smoothly by exhaust box, enlarged the exhaust box scope of application.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the close cellular type damping of ring-type diffuser structure schematic diagram;
In figure: 1, shell, 2, the sound-absorbing pipe, 3, air intake opening, 4, front shroud, 5, the gas outlet, 6, back shroud, 7, back up pad, 8, the damping fan diffuser, 9, the bending air flue, 14, pore, 15, through-flow air flue, 16, wireway, 17, flange, 18, take over, 19, through hole.
Embodiment
Below in conjunction with specification drawings and specific embodiments, substantive distinguishing features of the present utility model is further described.
a kind of sound suppressor with cylindric close cellular type damping fan diffuser as shown in Figure 1, comprise the tube-like envelope 1 that includes through-flow air flue 15 and the sound-absorbing pipe 2 of fitting with described shell 1 madial wall, described shell 1 two ends are respectively equipped with the front shroud 4 of gas outlet 5 and the back shroud 6 of inlet 3, described sound-absorbing pipe 2 one ends are conflicted on the sidewall of described front shroud 4, the ring-type back up pad 7 that the other end and is built in described shell 1 is connected, be provided with a damping fan diffuser 8 that is cylindric and surperficial densely covered pore 14 in the assemblage gap that described back up pad 7 and described back shroud are 6, described through-flow air flue 15 is intercepted by described damping fan diffuser 8, described pore 14 is distributed in the surperficial surrounding (as shown in Figure 2) of described cylindric damping fan diffuser 8 in the form of a ring, the cylinder lateral wall of described damping fan diffuser 8 and the madial wall of described shell 1 mate envelope and connect, and are communicated with by described pore 14 between the upper and lower surface of described damping fan diffuser 8, and described through-flow air flue 15 coordinates formation bending air flue 9 with described pore 14, be provided with the wireway 16 of a sidewall band through hole 19 in described sound-absorbing pipe 2, described wireway 16 1 ends are connected with described back up pad 7 interior ring edge couplings, and the other end seals and is suspended in described sound-absorbing pipe 2, described back shroud 6 outsides are provided with a flange 17, and described flange 17 is taken over 18 by one and is connected with the interior ring edge coupling of described back shroud 6.
In use, can improve air-flow deceleration antihypertensive effect by the damping fan diffuser 8 of the identical or different structure of stacked many groups, and the runner of adjacent damping fan diffuser 8 is dislocation to be arranged, to improve the resistance to air-flow, also should be considered as specific embodiment of the utility model.
In concrete operations, be intensively distributed with many pores 14 on damping fan diffuser 8, because damping fan diffuser 8 middle parts have the air flue corresponding with air intake opening 3, this structure is applicable to air intake opening 3 stream pressures, situation that flow velocity is all less.
In concrete operations, exhaust box is connected on default station by flange 17, also can connect by modes such as welding, be spirally connected, all should be considered as specific embodiment of the utility model.
In concrete operations, the material of sound-absorbing pipe 2 is preferably acoustical cotton, also can select other acoustical material to replace, and all should be considered as specific embodiment of the utility model.
Claims (4)
1. sound suppressor with cylindric close cellular type damping fan diffuser, comprise the tube-like envelope (1) that includes through-flow air flue (15) and the sound-absorbing pipe (2) of fitting with described shell (1) madial wall, described shell (1) two ends are respectively equipped with the front shroud (4) of band gas outlet (5) and the back shroud (6) of inlet (3), it is characterized in that described sound-absorbing pipe (2) one ends conflicts are on the sidewall of described front shroud (4), the ring-type back up pad (7) that the other end and is built in described shell (1) is connected, be provided with a damping fan diffuser (8) that is cylindric and surperficial densely covered pore (14) in assemblage gap between described back up pad (7) and described back shroud (6), described through-flow air flue (15) is intercepted by described damping fan diffuser (8), described pore (14) is distributed in the surperficial surrounding of described cylindric damping fan diffuser (8) in the form of a ring.
2. a kind of sound suppressor with cylindric close cellular type damping fan diffuser according to claim 1, it is characterized in that the cylinder lateral wall of described damping fan diffuser (8) and the madial wall coupling envelope of described shell (1) connect, be communicated with by described pore (14) between the upper and lower surface of described damping fan diffuser (8), described through-flow air flue (15) coordinates formation bending air flue (9) with described pore (14).
3. a kind of sound suppressor with cylindric close cellular type damping fan diffuser according to claim 1, it is characterized in that being provided with in described sound-absorbing pipe (2) wireway (16) of a sidewall band through hole (19), described wireway (16) one ends are connected with described back up pad (7) interior ring edge coupling, and the other end seals and is suspended in described sound-absorbing pipe (2).
4. a kind of sound suppressor with cylindric close cellular type damping fan diffuser according to claim 1, it is characterized in that being provided with a flange (17) outside described back shroud (6), described flange (17) is taken over (18) by one and is connected with the interior ring edge coupling of described back shroud (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725077 CN202948716U (en) | 2012-12-25 | 2012-12-25 | Silencer with cylindrical thick-hole type damping diffuser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725077 CN202948716U (en) | 2012-12-25 | 2012-12-25 | Silencer with cylindrical thick-hole type damping diffuser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202948716U true CN202948716U (en) | 2013-05-22 |
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ID=48424408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725077 Expired - Fee Related CN202948716U (en) | 2012-12-25 | 2012-12-25 | Silencer with cylindrical thick-hole type damping diffuser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202948716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057186A (en) * | 2016-05-23 | 2016-10-26 | 中国船舶重工集团公司第七○二研究所 | High pressure exhausting silencing apparatus |
-
2012
- 2012-12-25 CN CN 201220725077 patent/CN202948716U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057186A (en) * | 2016-05-23 | 2016-10-26 | 中国船舶重工集团公司第七○二研究所 | High pressure exhausting silencing apparatus |
| CN106057186B (en) * | 2016-05-23 | 2019-05-31 | 中国船舶重工集团公司第七○二研究所 | High pressure gas silencing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130522 Termination date: 20191225 |