CN115457926A - Filtering structure of silencer - Google Patents

Filtering structure of silencer Download PDF

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Publication number
CN115457926A
CN115457926A CN202211190503.0A CN202211190503A CN115457926A CN 115457926 A CN115457926 A CN 115457926A CN 202211190503 A CN202211190503 A CN 202211190503A CN 115457926 A CN115457926 A CN 115457926A
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CN
China
Prior art keywords
silencing
filtering
air inlet
connecting piece
filtering device
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.)
Withdrawn
Application number
CN202211190503.0A
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Chinese (zh)
Inventor
郭克亚
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Dongguan Mingchuang Transmission Technology Co ltd
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Dongguan Mingchuang Transmission Technology Co ltd
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Publication date
Application filed by Dongguan Mingchuang Transmission Technology Co ltd filed Critical Dongguan Mingchuang Transmission Technology Co ltd
Priority to CN202211190503.0A priority Critical patent/CN115457926A/en
Publication of CN115457926A publication Critical patent/CN115457926A/en
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention discloses a filtering structure of a silencer, which comprises powder and a silencing and filtering device formed by sintering, wherein the filtering precision of micropores on the silencing and filtering device is set between 10 micrometers and 0.1 micrometer, the silencing and filtering area is set between 500 square millimeters and 180000 square millimeters, and the silencing and filtering thickness is set between 2 millimeters and 30 millimeters. The invention has simple process and low cost, and can effectively reduce the noise generated by high-speed gas. The invention can be used in the industries of chemical industry, environmental protection, pharmacy, food and the like, and in the fields of noise reduction and pollution reduction of equipment generated by high-speed airflow in industrial factories and mines.

Description

Filtering structure of silencer
Technical Field
The invention relates to the technical field of high-speed airflow silencing, in particular to a silencing and filtering technology of a silencer (silencer).
Background
The existing silencers (silencers) are various, mainly including resistive silencers, resistive composite silencers, microperforated panel silencers, small-hole silencers and the like, and utilize pipes with sound-absorbing linings or noise reduction devices with suddenly changed cross sections and the like to attenuate the noise in the pipes; due to the impact of high-speed airflow on sound-absorbing filler, moisture permeation and the like, the silencer has high failure rate and poor silencing effect, which is a design difficulty of silencers all the time. Along with scientific and technological development, intelligent manufacturing and operational environment's improvement, the pneumatic element quantity on the industrial automation equipment increases rapidly, and there is the potential safety hazard to the equipment circuit in the water and the oil in the pneumatic element emission waste gas, and the puzzlement that the operational environment brought is more and more serious for pneumatic element's noise. In order to continue to advance and develop the industry, there is a need to further improve and improve the technology and performance of mufflers.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a filtering structure of a silencer, which improves the silencing effect.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the filtering structure of the silencer comprises powder, a silencing and filtering device formed by sintering (or bonding), wherein the precision of microporous filtration on the silencing and filtering device is set between 10 micrometers and 0.1 micrometer, the silencing and filtering area is set between 500 square millimeters and 180000 square millimeters, and the thickness of the silencing and filtering device is set between 2 millimeters and 30 millimeters.
The filtering structure of the silencer, wherein when the filtration precision of the micro-pores on the silencing filtering device is set between 10 microns and 5 microns, the silencing filtering area is set between 500 square millimeters and 20000 square millimeters.
The filtering structure of the silencer, wherein when the filtration precision of the micropores on the silencing and filtering device is set between 5 microns and 1 micron, the silencing and filtering area is set between 1500 square millimeters and 60000 square millimeters.
The filtering structure of the silencer, wherein when the filtration precision of the micropores on the silencing filtering device is set between 1 micron and 0.1 micron, the silencing filtering area is set between 4500 square millimeters and 180000 square millimeters.
The filtering structure of the silencer is characterized in that the silencing and filtering device is a tubular body, a U-shaped cylinder or a hollow sphere.
The filtering structure of the silencer is characterized in that the hollow diameter of the tubular body (or the U-shaped cylinder) is set between 6 millimeters and 200 millimeters, and the length of the tubular body is set to be more than 2 millimeters.
The filtering structure of the silencer further comprises at least two silencing filtering devices, and the two silencing filtering devices are connected in parallel or in series.
The filtering structure of the silencer is characterized in that the powder is sand, kaolin, diatomite, metal powder or plastic powder.
The filtering structure of a silencer, wherein the sand comprises white corundum sand or diatom sand.
The filtering structure of a silencer, wherein the metal powder includes stainless steel powder or titanium powder.
The filtering structure of the silencer, wherein the plastic powder comprises PE/PA powder, PP/TPU powder or PTFE/POE powder.
The filtering structure of the silencer further comprises at least one connecting piece and at least one air inlet, the first air inlet is formed in the first connecting piece, the first connecting piece is fixedly connected with the silencing filtering device or is integrated through sintering (or bonding), and the first air inlet is communicated with a cavity in the silencing filtering device; or the first air inlet is arranged on the first connecting piece, the first connecting piece and the second connecting piece are respectively arranged at two ends of the silencing and filtering device and are fixedly connected or integrated through sintering (or bonding), the first air inlet is communicated with a cavity on the silencing and filtering device, and the second connecting piece seals an opening end on the silencing and filtering device; or the first air inlet and the second air inlet are respectively arranged on the first connecting piece and the second connecting piece, the first connecting piece and the second connecting piece are respectively arranged at two ends of the silencing and filtering device and are fixedly connected or are integrated through sintering (or bonding), and the first air inlet and the second air inlet are respectively communicated with the cavity on the silencing and filtering device; or the first air inlet and the second air inlet are respectively arranged on the first connecting piece, the first connecting piece and the second connecting piece are respectively arranged at two ends of the silencing and filtering device and the second silencing and filtering device and are fixedly connected or are integrated through sintering (or bonding), the first air inlet is communicated with the cavity on the silencing and filtering device, the second air inlet is communicated with the cavity on the second silencing and filtering device, and the second connecting piece respectively seals the upper ports of the silencing and filtering device and the second silencing and filtering device. Or the first air inlet and the second air inlet are respectively arranged on the first connecting piece, the third air inlet and the fourth air inlet are respectively arranged on the second connecting piece, the first connecting piece and the second connecting piece are respectively arranged at two ends of the silencing filtering device and the second silencing filtering device and are fixedly connected or integrated through sintering (or bonding), the first air inlet and the second air inlet are respectively communicated with the cavity on the silencing filtering device, and the third air inlet and the fourth air inlet are respectively communicated with the cavity on the second silencing filtering device.
The filtering structure of the silencer further comprises at least one internal thread, the first internal thread is arranged on the first connecting piece of the first air inlet, or the first internal thread is arranged on the first connecting piece of the first air inlet, and the second internal thread is arranged on the second connecting piece of the second air inlet and is used for connecting an external element.
The filtering structure of the silencer further comprises at least one external thread, wherein the first external thread is arranged on the first connecting piece, or the first external thread is arranged on the first connecting piece, and the second external thread is arranged on the second connecting piece and used for connecting an external element.
The filtering structure of the silencer further comprises at least one fixing device, and the silencing and filtering device is fixedly connected with (or integrated with) the first fixing device. Or the first fixing device and the second fixing device are respectively fixedly connected with the silencing and filtering device (or are integrated).
The filtering structure of the silencer also comprises a high-pressure air source, and the pressure range of the high-pressure air source is 2kgf/cm 2 To 30kgf/cm 2 The flow rate is 0.5m 3 More than min, the flow speed is more than 3 m/s; the high-pressure air source is connected to the air inlet.
The beneficial effects are that: the invention can effectively reduce the noise of high-speed airflow by controlling the filtering precision and the filtering area of the filtering material.
The invention has simple structure and low cost, and can adapt to noise reduction and pollution reduction of high-speed airflow at different temperatures by using corresponding materials. The invention can be used in the industries of chemical industry, environmental protection, pharmacy, food and the like, and the fields of noise reduction, pollution reduction and the like of equipment generated by high-speed airflow in industrial factories and mines, such as various exhaust devices of engines, air compressors, vacuum machines, steam engines, high-pressure boilers, high-pressure air tanks, stamping equipment, air cylinders, electromagnetic valves, vacuum valves, pressure relief valves, pressure reduction valves and the like, and the fields of various automatic equipment, pneumatic elements and the like.
Drawings
FIG. 1 is a plot of the trend of filtration area for an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of the present invention;
FIG. 3 is a schematic structural diagram according to a second embodiment of the present invention;
FIG. 4 is a schematic diagram of a third structure according to an embodiment of the present invention.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples:
as shown in figures 1 and 2, the invention comprises a silencing and filtering device 1 which comprises powder and is formed by sintering (or bonding), wherein the precision of microporous filtration on the silencing and filtering device 1 is set between 10 micrometers and 0.1 micrometer, the silencing and filtering area is set between 500 square millimeters and 180000 square millimeters, and the thickness of the silencing and filtering is set between 2 millimeters and 30 millimeters.
In the embodiment of the present invention, when the micro-filtration precision of the silencing and filtering device 1 is set between 10 micrometers and 5 micrometers, the silencing and filtering area is set between 500 square millimeters and 20000 square millimeters, which forms a trend line one.
In the embodiment of the invention, when the filtration precision of the micropores on the silencing and filtering device 1 is set between 5 micrometers and 1 micrometer, the silencing and filtering area is set between 1500 square millimeters and 60000 square millimeters, which forms the trend line two.
In the embodiment of the present invention, when the filtration precision of the micro-pores on the silencing and filtering device 1 is set to be between 1 micron and 0.1 micron, the silencing and filtering area is set to be between 4500 square millimeters and 180000 square millimeters, which constitutes trend line three.
In the embodiment of the present invention, at least one air inlet is further included, and the first air inlet is disposed in the silencing and filtering device 1.
In a particular embodiment of the invention, the silencing and filtering device 1 is provided as a tubular body, or a U-shaped cylinder, or a hollow sphere, the hollow diameter of which is set between 6 mm and 200 mm.
In the specific embodiment of the present invention, at least two silencing and filtering devices 1 are further included, and at least two silencing and filtering devices 1 are connected in parallel or in series.
In a specific embodiment of the present invention, the powder may be sand, kaolin, diatomite, metal powder, or plastic powder.
As shown in fig. 3, the present invention further includes at least one connecting member 3, the first air inlet 2 is disposed on the first connecting member 3, the first connecting member 3 is fixedly connected to the noise reduction filter device 1 or is integrated by sintering (or bonding), and the first air inlet 2 is communicated with the cavity of the noise reduction filter device 1.
In the embodiment of the present invention, the first air inlet 2 and the second air inlet 5 are respectively disposed on the first connecting piece 3 and the second connecting piece 4, the first connecting piece 3 and the second connecting piece 4 are respectively disposed at two ends of the noise reduction filter device 1 and are fixedly connected or integrated by sintering (or bonding), and the first air inlet 2 and the second air inlet 5 are respectively communicated with the cavity of the noise reduction filter device 1.
In the embodiment of the present invention, the first air inlet 2 may be selectively disposed on the first connecting member 3, the first connecting member 3 and the second connecting member 4 are respectively disposed at two ends of the noise reduction filter device 1 and are fixedly connected, or are integrated by sintering (or bonding), the first air inlet 2 is communicated with the cavity on the noise reduction filter device 1, and the second connecting member 4 closes the open end on the noise reduction filter device 1.
In the embodiment of the present invention, the first air inlet 2 and the second air inlet 5 may be respectively disposed on the first connecting member 3, the first connecting member 3 and the second connecting member 4 are respectively disposed at two ends of the silencing and filtering device 1 and the second silencing and filtering device and are fixedly connected or integrated by sintering (or bonding), the first air inlet 2 is communicated with the cavity on the silencing and filtering device 1, the second air inlet 5 is communicated with the cavity on the second silencing and filtering device, and the second connecting member 4 is respectively used to seal the upper ports of the silencing and filtering device 1 and the second silencing and filtering device.
In the embodiment of the present invention, the first air inlet 2 and the second air inlet 5 are selectively disposed on the first connecting member 3, the third air inlet and the fourth air inlet are disposed on the second connecting member 4, the first connecting member 3 and the second connecting member 4 are disposed on two ends of the silencing and filtering device 1 and the second silencing and filtering device respectively and are fixedly connected or integrated by sintering (or bonding), the first air inlet 2 and the second air inlet 5 are respectively communicated with the cavity on the silencing and filtering device 1, and the third air inlet and the fourth air inlet are respectively communicated with the cavity on the second silencing and filtering device.
In a particular embodiment of the invention, the device further comprises at least one internal thread, the first internal thread being provided on the first connection piece of the first gas inlet, or the first internal thread being provided on the first connection piece of the first gas inlet and the second internal thread being provided on the second connection piece of the second gas inlet, for connection to an external element.
In a specific embodiment of the invention, the connector further comprises at least one external thread, wherein the first external thread is arranged on the first connector, or the first external thread is arranged on the first connector and the second external thread is arranged on the second connector for connecting an external element.
In the embodiment of the present invention, the first connecting member 3 further includes at least one screw fixing hole.
In the embodiment of the present invention, the second connection member 4 further includes at least one second screw fixing hole.
As shown in fig. 4, the present invention further comprises at least one fixing device 11, and the silencing and filtering device 1 is fixedly connected with (or integrated with) the first fixing device 11.
In the embodiment of the invention, the device further comprises a second fixing device 13, the first connecting piece 3 and the third connecting piece 7 are respectively and fixedly connected with the first fixing device 11, and the second connecting piece 4 and the fourth connecting piece 9 are respectively and fixedly connected with the second fixing device 13; the first air inlet 2 and the second air inlet 5 are respectively arranged on the first connecting piece 3 and the second connecting piece 4, the first connecting piece 3 and the second connecting piece 4 are respectively arranged at two ends of the silencing and filtering device 1 and are fixedly connected or integrated through sintering (or bonding), and the first air inlet 2 and the second air inlet 5 are respectively communicated with a cavity on the silencing and filtering device 1; the third air inlet 8 and the fourth air inlet 10 are respectively arranged on the third connecting piece 7 and the fourth connecting piece 9, the third connecting piece 7 and the fourth connecting piece 9 are respectively arranged at two ends of the second silencing and filtering device 6 and are fixedly connected with or integrated with each other through sintering (or bonding), and the third air inlet 8 and the fourth air inlet 10 are respectively communicated with the cavity on the second silencing and filtering device 6.
In the embodiment of the present invention, the first fixing device 11 further includes at least one third screw fixing hole 12. And a second fixing device 13
In the embodiment of the present invention, the second fixing device 13 further includes at least one fourth screw fixing hole 14.
As will be apparent to those skilled in the art, many modifications can be made to the invention without departing from the spirit and scope thereof, and it is intended that the present invention cover all modifications and equivalents of the embodiments of the invention covered by the appended claims.

Claims (10)

1. The filtering structure of silencer includes powder, silencing and filtering unit formed through sintering (or adhering), and the silencing and filtering unit has micropore filtering precision of 10-0.1 micron, silencing and filtering area of 500-180000 square millimeters and thickness of 2-30 millimeters.
2. The filtering structure of a muffler according to claim 1, wherein: when the filtration precision of the micropores on the silencing and filtering device is set between 10 micrometers and 5 micrometers, the silencing and filtering area is set between 500 square millimeters and 20000 square millimeters, and the silencing and filtering thickness is set between 2 millimeters and 20 millimeters.
3. The filtering structure of a muffler according to claim 1, wherein: when the filtering precision of the micropores on the silencing and filtering device is set between 5 micrometers and 1 micrometer, the silencing and filtering area is set between 1500 square millimeters and 60000 square millimeters, and the silencing and filtering thickness is set between 2 millimeters and 30 millimeters.
4. The filtering structure of a muffler according to claim 1, wherein: when the filtration precision of the micropores on the silencing and filtering device is set between 1 micron and 0.1 micron, the silencing and filtering area is set between 4500 square millimeters and 180000 square millimeters, and the silencing and filtering thickness is set between 2 millimeters and 20 millimeters.
5. The filtering structure of a muffler according to claim 1, wherein: the silencing and filtering device is a tubular body, a U-shaped cylinder or a hollow sphere.
6. The filtering structure of a muffler according to claim 5, wherein: the hollow diameter of the tubular body (or the U-shaped cylinder) is set between 6 mm and 200 mm, and the length of the tubular body is set to be more than 2 mm.
7. The filtering structure of a muffler according to claim 1, wherein: the device also comprises at least two silencing and filtering devices which are connected in parallel or in series.
8. The filtering structure of a muffler according to claim 1, wherein: the powder is sand, kaolin, diatomite, metal powder or plastic powder.
9. The filtering structure of a muffler according to claim 1, or 2, or 3, or 4, or 5, or 6, or 7, or 8, wherein: the first air inlet is arranged on the first connecting piece, the first connecting piece is fixedly connected with the silencing filter device or is integrated through sintering (or bonding), and the first air inlet is communicated with a cavity on the silencing filter device; or the first air inlet is arranged on the first connecting piece, the first connecting piece and the second connecting piece are respectively arranged at two ends of the silencing and filtering device and are fixedly connected or integrated through sintering (or bonding), the first air inlet is communicated with a cavity on the silencing and filtering device, and the second connecting piece seals an opening end on the silencing and filtering device; or the first air inlet and the second air inlet are respectively arranged on the first connecting piece and the second connecting piece, the first connecting piece and the second connecting piece are respectively arranged at two ends of the silencing and filtering device and are fixedly connected or are integrated through sintering (or bonding), and the first air inlet and the second air inlet are respectively communicated with the cavity on the silencing and filtering device; or the first air inlet and the second air inlet are respectively arranged on the first connecting piece, the first connecting piece and the second connecting piece are respectively arranged at two ends of the silencing and filtering device and the second silencing and filtering device and are fixedly connected or are integrated through sintering (or bonding), the first air inlet is communicated with the cavity on the silencing and filtering device, the second air inlet is communicated with the cavity on the second silencing and filtering device, and the second connecting piece respectively seals the upper ports of the silencing and filtering device and the second silencing and filtering device. Or the first air inlet and the second air inlet are respectively arranged on the first connecting piece, the third air inlet and the fourth air inlet are respectively arranged on the second connecting piece, the first connecting piece and the second connecting piece are respectively arranged at two ends of the silencing filtering device and the second silencing filtering device and are fixedly connected or integrated through sintering (or bonding), the first air inlet and the second air inlet are respectively communicated with the cavity on the silencing filtering device, and the third air inlet and the fourth air inlet are respectively communicated with the cavity on the second silencing filtering device.
10. The filtering structure of a muffler according to claim 9, wherein: the silencing and filtering device further comprises at least one fixing device, and the silencing and filtering device is fixedly connected with (or integrated with) the first fixing device. Or the first fixing device and the second fixing device are respectively fixedly connected with the silencing filter device (or are integrated).
CN202211190503.0A 2022-09-28 2022-09-28 Filtering structure of silencer Withdrawn CN115457926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211190503.0A CN115457926A (en) 2022-09-28 2022-09-28 Filtering structure of silencer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211190503.0A CN115457926A (en) 2022-09-28 2022-09-28 Filtering structure of silencer

Publications (1)

Publication Number Publication Date
CN115457926A true CN115457926A (en) 2022-12-09

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ID=84307683

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211190503.0A Withdrawn CN115457926A (en) 2022-09-28 2022-09-28 Filtering structure of silencer

Country Status (1)

Country Link
CN (1) CN115457926A (en)

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Application publication date: 20221209