CN112049827A - Vacuum generator with noise reduction function - Google Patents
Vacuum generator with noise reduction function Download PDFInfo
- Publication number
- CN112049827A CN112049827A CN201910491623.6A CN201910491623A CN112049827A CN 112049827 A CN112049827 A CN 112049827A CN 201910491623 A CN201910491623 A CN 201910491623A CN 112049827 A CN112049827 A CN 112049827A
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- China
- Prior art keywords
- vacuum generator
- noise reduction
- vacuum
- silencing
- generator body
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- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
- F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
A vacuum generator with sound deadening function, comprising: the vacuum generator comprises a vacuum generator body, wherein an air inlet, a nozzle, a diffusion chamber, a vacuum port and an exhaust port are arranged in the vacuum generator body, the air inlet is arranged on one side of the vacuum generator body, the exhaust port is arranged on the other side of the vacuum generator body, the nozzle, the diffusion chamber and the diffusion chamber are sequentially arranged between the air inlet and the air inlet, the vacuum port is arranged below the vacuum generator body, and the vacuum port is communicated with the nozzle; the silencer comprises a silencing filter cylinder and a silencing barrel, wherein the silencing filter cylinder is positioned on the inner wall of the silencing barrel, and the silencer is sleeved on the exhaust port of the vacuum generator body. The vacuum generator with the noise reduction function can effectively reduce the noise decibel of the vacuum generator body.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a vacuum generator, in particular to a vacuum generator with a noise reduction function.
[ background of the invention ]
The vacuum generator is a new type, high-efficiency, clean, economic and small vacuum component using positive pressure air source to produce negative pressure, and it is very easy and convenient to obtain negative pressure in the place with compressed air or in the place needing positive and negative pressure in a pneumatic system. Vacuum generators are widely used in industrial automation in the fields of machinery, electronics, packaging, printing, plastics, robots, and the like.
However, since the operation principle of the vacuum generator in the prior art is that a certain pressure of air flow generates a flow siphon effect through the nozzle to generate a negative pressure, the nozzle is required to exhaust air all the time in the process, although the vacuum generator is provided with a silencer, the noise is still very large, generally reaching 75-90 decibels, and the vacuum generator can cause damage to human bodies for a long time in the environment.
In view of the above, there is a need to provide a vacuum generator with a sound-deadening function, which can effectively reduce the noise decibel of the vacuum generator by a simple method without affecting the actual negative pressure value of the vacuum generator.
[ summary of the invention ]
The invention aims to provide a vacuum generator with a silencing function, which is used for reducing noise decibels of the vacuum generator, and comprises:
the vacuum generator comprises a vacuum generator body, wherein an air inlet, a nozzle, a diffusion chamber, a vacuum port and an exhaust port are arranged in the vacuum generator body, the air inlet is arranged on one side of the vacuum generator body, the exhaust port is arranged on the other side of the vacuum generator body, the nozzle, the diffusion chamber and the diffusion chamber are sequentially arranged between the air inlet and the air inlet, the vacuum port is arranged below the vacuum generator body, and the vacuum port is communicated with the nozzle;
the silencer comprises a silencing filter cylinder and a silencing barrel, wherein the silencing filter cylinder is positioned on the inner wall of the silencing barrel, and the silencer is sleeved on the exhaust port of the vacuum generator body.
Optionally, the inner wall diameter of the pressure-expanding chamber is gradually increased.
Optionally, the material of amortization cartridge filter is for inhaling the sound cotton.
Optionally, the silencing tube is made of a hard paper cylinder.
Optionally, the silencing barrel is 50 mm in diameter and 150 mm in length.
Optionally, the outer wall of the silencing barrel is further wrapped with a layer of dust-free paper.
Compared with the prior art, the vacuum generator with the silencing function has the advantages that the silencer is sleeved on the vacuum generator body, and the silencer comprises the silencing cylinder and the silencing filter cylinder, so that the noise decibel of the exhaust port is effectively reduced through the two sound insulation and noise reduction effects of the silencing cylinder and the silencing filter cylinder. In addition, the vacuum generator with the silencing function does not influence the actual negative pressure value of the vacuum generator.
[ description of the drawings ]
Fig. 1 is a schematic structural view of a vacuum generator with a sound-deadening function according to the present invention.
[ detailed description ] embodiments
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to a preferred embodiment of the present invention and the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a vacuum generator with a sound attenuation function according to the present invention. In this embodiment, the present invention provides a vacuum generator with noise reduction function 100 for reducing noise decibels of the vacuum generator, the vacuum generator with noise reduction function 100 includes:
a vacuum generator body 110, wherein the vacuum generator body 110 is internally provided with an air inlet 111, a nozzle 112, a diffusion chamber 113, a diffusion chamber 114, a vacuum port 115 and an exhaust port 116, wherein the air inlet 111 is arranged at one side of the vacuum generator body 110, the exhaust port 116 is arranged at the other side of the vacuum generator body 110, the nozzle 112, the diffusion chamber 113 and the diffusion chamber 114 are sequentially arranged between the air inlet 111 and the air inlet 111, the vacuum port 115 is arranged below the vacuum generator body 110, and the vacuum port 115 is communicated with the nozzle 112;
the muffler 120 includes a silencing filter cartridge 121 and a silencing cylinder 122, the silencing filter cartridge 121 is located on the inner wall of the silencing cylinder 122, and the muffler 120 is sleeved on the exhaust port 116 of the vacuum generator body 110.
In the present embodiment, the diameter of the inner wall of the pressure expansion chamber 114 is gradually increased, so as to increase the air discharge effect of the pressure expansion chamber 114.
In this embodiment, the noise reduction filter cylinder 121 is made of sound absorption cotton, the sound absorption cotton is composed of a plurality of flocculent fine fibers, and the fibers are wound together in a crisscross manner to present a plurality of fine gaps, so that noise at the exhaust port 116 can be effectively reduced.
In this embodiment, the silencing pot 122 is made of a hard paper cylinder.
In this embodiment, the silencing pot 122 has a diameter of 50 mm and a length of 150 mm.
In this embodiment, the outer wall of the silencing pot 122 is further wrapped with a layer of dust-free paper.
Referring to fig. 1, the operation principle of the vacuum generator 100 with noise reduction function is as follows, 1. firstly, a layer of noise reduction tube 122 is wrapped on the outer wall of the noise reduction filter cylinder 121, and then the noise reduction tube 122 is sleeved and fixed on the exhaust port 116 of the vacuum generator body 110; 2. when the compressed air is supplied to the air inlet 111, the compressed air is introduced into the nozzle 112; 3. the compressed air is throttled at the nozzle 112, released into the diffusion chamber 113 at high speed, expanded and then diffused and flows to the diffusion chamber 114; 4. the pressure of the diffusion chamber 113 is reduced by the high-speed flow of air, and the air of the vacuum port 115 flows into the diffusion chamber 113; 5. the air flowing into the vacuum port 115 flows out of the exhaust port 116 through the diffuser and diffuser chamber 114 together with the compressed air discharged from the nozzle 112; 6. the noise generated by the compressed air flowing out is subjected to the two sound insulation and noise reduction effects of the silencing cylinder 122 and the silencing filter cylinder 121, so that the noise decibel is effectively reduced.
Compared with the prior art, in the vacuum generator 100 with a sound-deadening function of the present invention, the sound-deadening cylinder 122 and the sound-deadening filter cylinder 121 are included in the sound-deadening cylinder 120, and the sound-deadening and noise-reducing effects of the sound-deadening cylinder 122 and the sound-deadening filter cylinder 121 are achieved to effectively reduce the noise decibel of the air outlet 116. In addition, the vacuum generator 100 with noise reduction function of the present invention does not affect the actual negative pressure value of the vacuum generator.
It should be noted that the present invention is not limited to the above embodiments, and any simple modification, equivalent change and modification made to the above embodiments by those skilled in the art based on the technical solution of the present invention fall within the protection scope of the present invention.
Claims (6)
1. A vacuum generator with a sound attenuation function, comprising:
the vacuum generator comprises a vacuum generator body, wherein an air inlet, a nozzle, a diffusion chamber, a vacuum port and an exhaust port are arranged in the vacuum generator body, the air inlet is arranged on one side of the vacuum generator body, the exhaust port is arranged on the other side of the vacuum generator body, the nozzle, the diffusion chamber and the diffusion chamber are sequentially arranged between the air inlet and the air inlet, the vacuum port is arranged below the vacuum generator body, and the vacuum port is communicated with the nozzle;
the silencer comprises a silencing filter cylinder and a silencing barrel, wherein the silencing filter cylinder is positioned on the inner wall of the silencing barrel, and the silencer is sleeved on the exhaust port of the vacuum generator body.
2. The vacuum generator with a noise reduction function according to claim 1, wherein the diameter of the inner wall of the pressure expansion chamber is gradually increased.
3. The vacuum generator with noise reduction function as claimed in claim 1, wherein the noise reduction filter cartridge is made of sound absorbing cotton.
4. The vacuum generator with noise reduction function as claimed in claim 1, wherein the noise reduction cylinder is made of a hard paper cylinder.
5. The vacuum generator with a noise reduction function according to claim 1, wherein the noise reduction cylinder has a diameter of 50 mm and a length of 150 mm.
6. The vacuum generator with noise reduction function as claimed in claim 1, wherein the outer wall of the noise reduction cylinder is further covered with a layer of dust-free paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910491623.6A CN112049827A (en) | 2019-06-06 | 2019-06-06 | Vacuum generator with noise reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910491623.6A CN112049827A (en) | 2019-06-06 | 2019-06-06 | Vacuum generator with noise reduction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112049827A true CN112049827A (en) | 2020-12-08 |
Family
ID=73608927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910491623.6A Pending CN112049827A (en) | 2019-06-06 | 2019-06-06 | Vacuum generator with noise reduction function |
Country Status (1)
| Country | Link |
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| CN (1) | CN112049827A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565738A (en) * | 2021-07-30 | 2021-10-29 | 华冠特种设备(江苏)有限公司 | Vacuum generator with noise reduction function and control system thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202082173U (en) * | 2011-05-10 | 2011-12-21 | 天津格威莱德科技发展有限公司 | High negative pressure vacuum generator |
| CN203307441U (en) * | 2012-05-11 | 2013-11-27 | 贵州东儒机械设备有限公司 | Ejector |
| US20150023809A1 (en) * | 2012-03-07 | 2015-01-22 | Denso Corporation | Ejector |
| CN204585749U (en) * | 2015-05-05 | 2015-08-26 | 宁波波特气动元件有限公司 | A kind of vacuum generator of improvement |
| CN204961416U (en) * | 2015-07-21 | 2016-01-13 | 重庆博帝节能设备有限公司 | Vertical type muffler that air -blower was used |
| CN208247306U (en) * | 2018-05-02 | 2018-12-18 | 东江模具（深圳）有限公司 | A kind of vacuum suction IML film injection molding apparatus |
-
2019
- 2019-06-06 CN CN201910491623.6A patent/CN112049827A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202082173U (en) * | 2011-05-10 | 2011-12-21 | 天津格威莱德科技发展有限公司 | High negative pressure vacuum generator |
| US20150023809A1 (en) * | 2012-03-07 | 2015-01-22 | Denso Corporation | Ejector |
| CN203307441U (en) * | 2012-05-11 | 2013-11-27 | 贵州东儒机械设备有限公司 | Ejector |
| CN204585749U (en) * | 2015-05-05 | 2015-08-26 | 宁波波特气动元件有限公司 | A kind of vacuum generator of improvement |
| CN204961416U (en) * | 2015-07-21 | 2016-01-13 | 重庆博帝节能设备有限公司 | Vertical type muffler that air -blower was used |
| CN208247306U (en) * | 2018-05-02 | 2018-12-18 | 东江模具（深圳）有限公司 | A kind of vacuum suction IML film injection molding apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565738A (en) * | 2021-07-30 | 2021-10-29 | 华冠特种设备(江苏)有限公司 | Vacuum generator with noise reduction function and control system thereof |
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