CN215981403U

CN215981403U - Steam silencer

Info

Publication number: CN215981403U
Application number: CN202121751771.6U
Authority: CN
Inventors: 陈睿轩; 陈红
Original assignee: Wuhan Bozhi Ruiyuan Environmental Protection Technology Co ltd
Current assignee: Wuhan Bozhi Ruiyuan Environmental Protection Technology Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-03-08
Anticipated expiration: 2031-07-29

Abstract

The utility model provides a steam silencer, which relates to the technical field of silencing equipment and comprises a barrel, wherein a throttling depressurization section and a silencing section are respectively arranged in the barrel, the throttling depressurization section comprises a throttling barrel core, a throttling orifice plate is fixed on the inner wall of the throttling barrel core, the silencing section comprises a silencing barrel core, sound absorption filling cotton is arranged on the surface of the silencing barrel core, a silencing partition plate is arranged on the surface of the sound absorption filling cotton, a reinforcing plate is fixed on the circumferential array of the surface of the silencing partition plate, one end of the reinforcing plate is fixed with the inner wall of the barrel, a liquid drainage channel is fixed at the bottom of the barrel, and a foot rest is welded on the surface of the barrel.

Description

Steam silencer

Technical Field

The utility model relates to the technical field of silencing equipment, in particular to a steam silencer.

Background

According to the patent number CN201320838348.9, the steam exhaust silencer is widely applied to industries such as petroleum, chemical engineering, electric power, metallurgy and the like, and comprises silencer barrels at two ends and a connecting pipe barrel core arranged in the silencer barrels, wherein one end of the silencer barrel is a closed end, a first sealing head for sealing is arranged on the closed end, the other end of the silencer barrel is a connecting end, one end of the connecting pipe barrel core is an inner end arranged in the silencer barrel, the other end of the connecting pipe barrel core is an outer end exposed out of the silencer barrel, and an opening at the outer end of the silencer barrel is an inlet of a silencer; a second sealing head for sealing is arranged between the connecting end of the connecting pipe cylinder core and the outer end of the silencer cylinder body, at least one layer of throttling orifice plate is arranged in the connecting pipe cylinder core, and a plurality of silencing small holes are uniformly distributed on the cylinder wall of the silencer cylinder body. The actually measured muffling amount of the steam exhaust muffler is more than 35 decibels, and the muffler can be suitable for steam exhaust emptying muffling under various pressure conditions, so that the performance of the steam exhaust muffler meets the requirements of national standards.

The patent introduces the whole muffler, and exhaust emptying noise mostly belongs to subsonic injection, has the characteristics of certain pressure, temperature, humidity, speed, and exhaust emptying muffler requires, and the muffler resistance is little, makes the exhaust unobstructed, can release pressure rapidly, and the noise elimination volume should be more than 30dB, and the noise elimination volume maximum value of traditional throttle step-down muffler is about 20dB or so, obviously can not satisfy the requirement of making an uproar entirely.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a steam silencer.

In order to achieve the purpose, the utility model adopts the following technical scheme: steam muffler, the novel steam muffler comprises a cylindrical shel, be equipped with throttle step-down section and amortization section in the barrel respectively, throttle step-down section includes the throttle section of thick bamboo core, the inner wall of throttle section of thick bamboo core is fixed with the orifice plate, the amortization section of thick bamboo core includes amortization section of thick bamboo core, amortization section of thick bamboo core surface is equipped with the filling sound absorption cotton, the cotton surface of filling sound absorption is equipped with the amortization baffle, and amortization baffle surface circumference array is fixed with the reinforcing plate, and reinforcing plate one end is fixed with the inner wall of barrel, the barrel bottom is fixed with the flowing back passageway, barrel skin weld has the foot rest.

Preferably, the throttling cylinder core is matched with a through hole at the bottom of the cylinder body, and the throttling cylinder core is embedded in the cylinder body.

Preferably, the surface of the throttling cylinder core is provided with a fixing piece, the fixing piece is welded with the surface of the throttling cylinder core, and one end of the fixing piece is fixed with the inner wall of the cylinder body.

Preferably, the filling sound absorption cotton is respectively attached to the surfaces of the silencing partition plate and the silencing cylinder core.

Preferably, the throttling cylinder core is fixed with the silencing cylinder core, and through holes are formed in the surface of the silencing cylinder core and the surface of the silencing partition plate in a circumferential array mode.

Preferably, the thickness of the inner walls of the silencing cylinder core and the silencing partition plate is 1 mm.

Preferably, the thicknesses of the silencing section and the throttling and pressure reducing section are both 3mm, and the thickness of the inner wall of the cylinder body is 3 mm.

Advantageous effects

According to the utility model, the resistive sheet type silencer is added on the traditional throttling pressure reduction silencer, the silencing cylinder core is added above the original throttling pressure reduction section, the surface of the silencing cylinder core is sleeved with the silencing partition plates, the sound absorption cotton is filled between the silencing partition plates, the silencing section is added on the basis of original small hole injection, the silencer effect is further enhanced, the simple structure and convenient installation of the silencer are realized, the damping of the silencing section is increased, the low-frequency and high-frequency noise reduction effects are good, the equipment is durable, and the service life is long.

Drawings

FIG. 1 is an isometric view of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is an internal view of the cartridge of the present invention;

fig. 4 is an overall sectional view of the present invention.

Illustration of the drawings:

1. a barrel; 101. a throttling and pressure reducing section; 1011. a throttle cylinder core; 1012. a restriction orifice plate; 1013. a fixing member; 102. a sound attenuation section; 1021. a silencer cartridge; 1022. filling sound absorption cotton; 1023. a sound-deadening partition plate; 1024. a reinforcing plate; 2. a liquid discharge channel; 3. a foot rest.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood, the utility model is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the utility model, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-4, steam silencer, including barrel 1, be equipped with throttle pressure reduction section 101 and amortization section 102 in the barrel 1 respectively, the thickness of amortization section 102 and throttle pressure reduction section 101 is 3 mm's steel sheet, the thickness of the inner wall of barrel 1 is 3 mm's steel sheet, throttle pressure reduction section 101 includes throttle section of thick bamboo core 1011, throttle section of thick bamboo core 1011 and the through-hole of barrel 1 bottom are mutually supported, throttle section of thick bamboo core 1011 gomphosis is in barrel 1, the inner wall of throttle section of thick bamboo core 1011 is fixed with orifice plate 1012, throttle section of thick bamboo core 1011 surface is equipped with mounting 1013, mounting 1013 and throttle section of thick bamboo core 1011 surface weld, for example under very big local resistance effect: the structure of the device is composed of a plurality of layers of throttling pore plates 1012 in series connection, because the acoustic power of jet noise is in direct proportion to the 2.3 power of pressure drop, a proper through-flow section is designed according to the size of exhaust flow, the original high-pressure gas is directly exhausted, the pressure is gradually reduced through a plurality of layers of pressure reduction devices and then exhausted, a better sound eliminating effect is obtained, and one end of a fixing part 1013 is fixed with the inner wall of a cylinder 1.

The silencing section 102 comprises a silencing cylinder core 1021, filling sound absorption cotton 1022 is arranged on the surface of the silencing cylinder core 1021, a silencing partition plate 1023 is arranged on the surface of the filling sound absorption cotton 1022, the filling sound absorption cotton 1022 is respectively attached to the surfaces of the silencing partition plate 1023 and the silencing cylinder core 1021, a throttling cylinder core 1011 is fixed with the silencing cylinder core 1021, through holes are formed in the circumferential arrays of the surfaces of the silencing cylinder core 1021 and the silencing partition plate 1023, the thickness of the inner walls of the silencing cylinder core 1021 and the silencing partition plate 1023 is 1mm, a reinforcing plate 1024 is fixed on the circumferential array of the surface of the silencing partition plate 1023, one end of the reinforcing plate 1024 is fixed with the inner wall of the cylinder body 1, a liquid drainage channel 2 is fixed at the bottom of the cylinder body 1, a foot rest 3 is welded on the surface of the cylinder body 1, a sheet type resistive silencer is added on the traditional throttling pressure reduction silencer, the silencing cylinder core 1021 is added above the original throttling pressure reduction section 101, and the silencing partition plate 1023 is sleeved on the surface of the silencing cylinder core 1021, filling sound absorption cotton 1022 is filled between the silencing partition plates 1023, the throttling cylinder core 1011 and the silencing cylinder core 1021 are fixed with the inner wall of the cylinder body 1 through fixing pieces 1013 and reinforcing plates 1024 respectively, liquid enters the throttling cylinder core 1011 and then passes through the throttling orifice plate 1012, a silencing section is added on the original small hole injection basis, and the silencing effect is further enhanced through the filling sound absorption cotton 1022 and the silencing partition plates 1023.

And (3) designing and calculating throttling and pressure reduction:

the pressure drop borne by each layer of restriction orifice is designed according to a critical ratio, i.e.

In the formula: ps-pressure Kg/cm2 of orifice plate

Pn-pressure after the second stage orifice plate Kg/cm2

n-throttling orifice plate series

q-pressure ratio

And (3) checking and calculating the resistance loss of the silencer:

pressure loss generated by friction between inner wall of silencer and air flow

According to the following steps: Δ P ma becomes 10 ξ ma

In the formula: Δ P rub — frictional resistance loss (Pa).

Xi Mole-coefficient of friction resistance (perforated plate surface structure value is 0.6).

l-effective sound absorption length of the muffler.

d-gas flow per square area per second time m 3/sec in the muffler channel, which is 18 in the design.

e-coefficient (value 0.5) relating to sound absorption material structure.

Rho-gas flow density (gas value is 1.34Kg/m 2).

v-air velocity (design flow rate 18 m/s).

g-acceleration of gravity.

Muffler local pressure loss calculation

According to the following steps: station resistance of (10) xi

In the formula: local resistance loss of a muffler passage opening is caused by local resistance of the delta L.

Xi local resistance-the local friction resistance coefficient (value is 0.6) of the muffler channel opening.

The noise elimination amount of the throttling and pressure reducing noise elimination section designed according to the critical value can be calculated according to the following formula.

According to the following steps: in the formula: p1 muffler inlet pressure

P0-ambient pressure

n-number of throttling and pressure-reducing layers

a-correction factor

Designing a sheet type resistive noise elimination section:

according to the following steps: in the formula: Δ L_BNoise elimination amount dB of sheet type resistive noise elimination section

φ(a₀) -damping coefficient associated with damping material

a-spacing m of sound-absorbing sheets

h-space length m of sound absorption sheet

i-effective length m of the muffling segment

The working principle of the utility model is as follows: through having increased resistive sheet formula silencer on with traditional throttle pressure reduction silencer, through adding amortization section of thick bamboo core 1021 above original throttle pressure reduction section 101, and at amortization section of thick bamboo core 1021 surface cup joint amortization baffle 1023, it fills sound absorption cotton 1022 to fill between amortization baffle 1023, it is fixed with the inner wall of choke section of thick bamboo core 1011 and amortization section of thick bamboo core 1021 and barrel 1 respectively through mounting 1013 and reinforcing plate 1024, liquid gets into behind the choke section of thick bamboo core 1011 through orifice plate 1012, for example under very big local resistance effect: the structure of the device is composed of a plurality of layers of throttling pore plates 1012 in series connection, and as the acoustic power of jetting noise is in direct proportion to the 2.3 power of pressure drop, a proper through-flow section is designed according to the size of exhaust flow, so that the original high-pressure gas is directly exhausted, the pressure is gradually reduced by a plurality of layers of pressure reduction devices and then exhausted, and a better silencing effect is obtained.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Steam muffler, including barrel (1), its characterized in that: be equipped with throttle depressurization section (101) and amortization section (102) in barrel (1) respectively, throttle depressurization section (101) is including throttle section of thick bamboo core (1011), the inner wall of throttle section of thick bamboo core (1011) is fixed with orifice plate (1012), amortization section (102) are including amortization section of thick bamboo core (1021), amortization section of thick bamboo core (1021) surface is equipped with fills sound absorption cotton (1022), it is equipped with amortization baffle (1023) to fill sound absorption cotton (1022) surface, and amortization baffle (1023) surface circumference array is fixed with reinforcing plate (1024), and reinforcing plate (1024) one end is fixed with the inner wall of barrel (1), barrel (1) bottom is fixed with flowing back passageway (2), barrel (1) surface welding has foot rest (3).

2. The steam silencer of claim 1, wherein: the throttle cylinder core (1011) is matched with the through hole at the bottom of the cylinder body (1), and the throttle cylinder core (1011) is embedded in the cylinder body (1).

3. The steam silencer of claim 1, wherein: the surface of the throttling cylinder core (1011) is provided with a fixing piece (1013), the fixing piece (1013) is welded with the surface of the throttling cylinder core (1011), and one end of the fixing piece (1013) is fixed with the inner wall of the cylinder body (1).

4. The steam silencer of claim 1, wherein: the filling sound absorption cotton (1022) is respectively attached to the surfaces of the silencing partition plate (1023) and the silencing barrel core (1021).

5. The steam silencer of claim 1, wherein: throttle section of thick bamboo core (1011) are fixed with amortization section of thick bamboo core (1021), and amortization section of thick bamboo core (1021) table and amortization baffle (1023) surface circumference array have seted up the through-hole.

6. The steam silencer of claim 1, wherein: the thickness of the inner wall of the silencing barrel core (1021) and the silencing partition plate (1023) is 1 mm.

7. The steam silencer of claim 1, wherein: the thickness of the noise reduction section (102) and the thickness of the throttling and pressure reducing section (101) are both 3mm, and the thickness of the inner wall of the barrel body (1) is 3 mm.