CN210050970U

CN210050970U - In-line externally-hung ventilation shutter silencer for gas medium-pressure regulating box

Info

Publication number: CN210050970U
Application number: CN201920547797.5U
Authority: CN
Inventors: 祝克; 沈苏; 梁凌岳; 祝强
Original assignee: Beijing Yiyang Environment Engineering Co Ltd
Current assignee: Beijing Yiyang Environment Engineering Co Ltd
Priority date: 2019-04-20
Filing date: 2019-04-20
Publication date: 2020-02-11
Anticipated expiration: 2029-04-20

Abstract

The utility model discloses an outer hanging gas middling pressure regulating box ventilation tripe silencer of in-line, its technical scheme main points are: the sound absorption device comprises a shell arranged on the outer wall of a vent of a medium-pressure regulating box, wherein a fixing component for being attached to the outer wall of the medium-pressure regulating box is arranged on the shell; the fixed subassembly includes that the rigid coupling is at the casing fixed strip on two lateral walls that back on the back mutually, and the fixed strip setting is opened at the casing has on two lateral walls that the air intake lateral wall is adjacent, and the rigid coupling has a plurality of to be used for magnetism to inhale the magnet on the medium pressure surge tank outer wall on the lateral wall of fixed strip orientation medium pressure surge tank. The utility model has the advantages that: its advantage is that the silencer can be installed on the external wall of medium-pressure regulating box conveniently and quickly.

Description

In-line externally-hung ventilation shutter silencer for gas medium-pressure regulating box

Technical Field

The utility model relates to an equipment of making an uproar technical field is fallen to medium pressure regulating box, concretely relates to outer hanging gas medium pressure regulating box ventilation shutter silencer of in-line.

Background

Various medium-pressure regulating boxes for urban gas are numerous and mostly distributed in noise-sensitive areas, and although the overall noise level is not as high as that of the high-pressure regulating boxes, the quantity is huge, and shelters such as enclosing walls and the like are not arranged around the medium-pressure regulating boxes, so that wide noise pollution can be formed. According to the gas design specifications, all medium-pressure regulating boxes are provided with ventilation openings to ensure that once gas leaks, the gas can be exhausted and diluted to the atmosphere to prevent deflagration, and the ventilation openings are usually designed into louvered ventilation openings. There has been much work and production in noise reduction for such box internal piping and box structures, but there have been few noise control measures for such ventilation louvers, where both noise reduction and ventilation need to be kept clear. The traditional silencer is generally very heavy, so the traditional silencer needs to be installed on the ground or additionally provided with a structural support, the volume of the medium-pressure regulating box body is very small, and the outer wall of the medium-pressure regulating box body is made of thin metal and cannot bear large load; and the pressure regulating box is in a working state generally, and is not suitable for electrically and electrically perforating by ignition, so that the installation of the silencer is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an outer hanging gas middling pressure regulating box ventilation shutter silencer of in-line, but its advantage convenient and fast installs the silencer on the outer wall of middling pressure regulating box.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an in-line externally-hung ventilation louver silencer for a gas medium-pressure regulating box comprises a shell arranged on the outer wall of a ventilation opening of the medium-pressure regulating box, wherein a fixing component used for being attached to the outer wall of the medium-pressure regulating box is arranged on the shell;

the fixed subassembly includes that the rigid coupling is at the casing fixed strip on two lateral walls that back on the back mutually, and the fixed strip setting is opened at the casing has on two lateral walls that the air intake lateral wall is adjacent, and the rigid coupling has a plurality of to be used for magnetism to inhale the magnet on the medium pressure surge tank outer wall on the lateral wall of fixed strip orientation medium pressure surge tank.

Through the technical scheme, when the staff is fixing casing and middling pressure surge tank outer wall, can inhale the magnet of casing both sides on the lateral wall of middling pressure surge tank, and make the air intake on the casing and the vent on the middling pressure surge tank communicate each other, thereby make the interior sound absorption unit of casing carry out the noise reduction to the air in the business turn over casing, because middling pressure surge tank shell all is the metal material, so connect casing and middling pressure surge tank lateral wall through the magnet, the convenience of installation has been improved.

The utility model discloses further set up to: the air outlet is arranged on one side of the shell, which is far away from the air inlet, and is arranged at the end part far away from the air inlet.

Through above-mentioned technical scheme, the air outlet is seted up in the one side that the casing deviates from the air intake for under the rainy environment, the rainwater is difficult for entering into the inside of casing through the air outlet, thereby has played the effect of protection to the sound absorption unit in the casing, sets up the air outlet in the tip of keeping away from the air intake in addition, has ensured the abundant contact of air with sound absorption unit, great reduction the propagation of noise.

The utility model discloses further set up to: the casing is located the border department rigid coupling of air intake and has sealed the pad, and sealed the pad is fixed in the casing towards one side of middling pressure regulating box.

Through above-mentioned technical scheme, after the mutual magnetism of the lateral wall of casing and middling pressure surge tank is inhaled, sealed the setting in the joint gap department of air intake and vent for it is inseparabler to be connected between casing and the vent, has reduced the propagation of noise.

The utility model discloses further set up to: the lateral wall that the casing was opened there is the air intake is provided with annular blotter, and the border department at the casing is fixed to the blotter.

Through above-mentioned technical scheme, the blotter setting is on the lateral wall of casing and the laminating of middling pressure regulating box to avoided the direct contact of casing and middling pressure regulating box, if middling pressure regulating box takes place to rock, the part vibration sense can be absorbed to the blotter, has reduced the vibrations of casing, thereby has improved the stability that magnet and middling pressure regulating box are fixed.

The utility model discloses further set up to: the fixed strip is provided with an embedded groove for embedding the magnet, and the magnet is fixed on the bottom wall of the embedded groove.

Through above-mentioned technical scheme, the fixed position of magnet and fixed strip has been confirmed in seting up of caulking groove, after the magnet is embedded into the caulking groove for fixed more stable between magnet and the fixed strip, reduced the slip between magnet and the fixed strip, ensured the fixed stability of casing.

The utility model discloses further set up to: the shell is made of metal light sheet materials.

Through above-mentioned technical scheme, the casing is made for metal light sheet metal for the casing is firmer and frivolous, has alleviateed the holistic weight of silencer, has also alleviateed the pressure that the magnet was inhaled simultaneously, makes casing and the fixed more firm of middling pressure regulating box lateral wall.

The utility model discloses further set up to: the sound absorption units are arranged on two sides of the air inlet and fixed on two opposite inner walls in the shell, and the sound absorption units are distributed along the length direction of the shell.

Through above-mentioned technical scheme, with the sound absorption unit setting in the casing on two relative inner walls to neither influence the normal flow of air, still played certain inhibitory action to the noise.

The utility model discloses further set up to: the sound absorption unit is made of melamine ultralight sound absorption sponge.

Through above-mentioned technical scheme, the sound absorption unit sets up to the sponge material to make silencer light more, when the suppression noise, still can not cause extra burden to the whole weight of muffler.

To sum up, the utility model discloses following beneficial effect has:

firstly, the installation is convenient. The shell is fixed on the outer side wall of the medium-pressure regulating box through the magnet, so that the installation and the replacement are convenient;

and secondly, the stability of fixing the shell and the outer side wall of the medium-pressure regulating box is improved. The setting of blotter has avoided the direct contact of casing with the middling pressure regulating box, if the middling pressure regulating box takes place to rock, the blotter can absorb partial vibration, has reduced the vibrations of casing to the fixed stability of magnet and middling pressure regulating box has been improved.

Drawings

FIG. 1 is a schematic view showing the connection between a medium pressure tank and a muffler;

FIG. 2 is a schematic view showing an internal structure of a muffler according to embodiment 1;

FIG. 3 is a schematic structural view of a fixing member in accordance with embodiment 1;

FIG. 4 is a schematic view showing the internal structure of a muffler according to embodiment 2;

FIG. 5 is a schematic view showing the internal structure of a muffler according to embodiment 3;

FIG. 6 is a schematic view showing the connection between the fixing sheet and the sound-absorbing unit in example 3.

In the figure, 1, a housing; 11. an air inlet; 12. an air outlet; 13. a gasket; 14. a cushion pad; 15. an air duct; 2. a fixing assembly; 21. a fixing strip; 211. caulking grooves; 22. a magnet; 3. a medium-pressure regulating tank; 31. a vent; 4. a sound absorption unit; 51. a slideway; 52. a wind deflector; 521. an air outlet; 6. a stabilizing sheet; 61. a through hole; 7. a spoiler.

Detailed Description

Example 1: an in-line externally-hung ventilation louver silencer for a gas medium-pressure regulating box is detachably connected to the outer side wall of the medium-pressure regulating box 3, and comprises a shell 1 and a fixing component 2 which is arranged on the shell 1 and is used for being attached to the medium-pressure regulating box 3.

As shown in fig. 2, the housing 1 is rectangular, an air inlet 11 is formed in one side of the housing 1, and the size of the air inlet 11 is larger than that of the ventilation opening 31 in the side wall of the medium voltage pressure regulating box 3. When the housing 1 is fixed on the outer side wall of the medium pressure regulating tank 3, the air inlet 11 of the housing 1 is communicated with the ventilation opening 31 of the medium pressure regulating tank 3, so that the air in the medium pressure regulating tank 3 can completely enter the housing 1. And the side wall of the shell 1 departing from the air inlet 11 is provided with an air outlet 12, so that the normal air flow in the shell 1 is met. Except that the side walls of the air inlet 11 and the air outlet 12 in the shell 1 are respectively provided with a sound absorption unit 4, the sound absorption units 4 are arranged in the same size with the fixed inner wall and are fixedly connected with the inner wall of the shell 1, and the positions of the air inlet 11 and the air outlet 12 in the shell 1 are respectively positioned at the upper end and the lower end close to the shell 1, so that the air entering the shell 1 can completely flow through the inner space in the shell 1.

As shown in fig. 2, the sound absorption unit 4 is a rectangular block made of melamine ultralight sound absorption sponge, and is disposed on two sides of the air inlet 11 and the air outlet 12, so as not to affect the normal circulation of air in the housing 1, and when the noise in the medium-pressure regulating box 3 is transmitted into the housing 1 through the ventilation opening 31, the sound absorption units 4 on two sides play a role in suppressing the transmission of the noise, thereby reducing the decibel of the noise transmitted from the air outlet 12 of the housing 1. And the length of the housing 1 is set to 20cm in the present embodiment, so that the path and time of the noise contacting the sound-absorbing unit 4 are extended during the noise propagation in the housing 1, thereby suppressing the noise propagation. And air outlet 12 does not set up the top at casing 1 for if under rainy environment, in the difficult entering casing 1 of rainwater, ensured the sanitation in the casing 1.

As shown in fig. 3, the fixing assembly 2 is disposed on two outer sidewalls of the housing 1 adjacent to the opening sidewall of the air inlet 11. The fixing component 2 comprises fixing strips 21 arranged on two back outer side walls in the shell 1, and the fixing strips 21 are vertically and fixedly connected with the outer side walls of the shell 1 and are distributed along the length direction of the shell 1; one side rigid coupling of every fixed strip 21 orientation middling pressure surge tank 3 lateral wall has a plurality of magnet 22 (this embodiment magnet 22 is provided with 4), and magnet 22 lays along the length direction of fixed strip 21. And each fixing strip 21 is provided with four caulking grooves 211 for accommodating the magnet 22, and the caulking grooves 211 are adhered to the bottom wall of the caulking grooves 211. When the staff fixes silencer and 3 lateral walls of medium pressure surge tank, because medium pressure surge tank 3 all is the metal material, inhale through the mutual magnetism of

magnet

22 and 3 lateral walls of medium pressure surge tank, make casing 1 open one side laminating that has air intake 11 on the lateral walls of medium pressure surge tank 3, and make casing 1's air intake 11 and medium pressure surge tank 3's vent 31 communicate each other, thereby can convenient and fast install the silencer, and the maintenance efficiency is improved.

As shown in fig. 3, the housing 1 is made of a light metal sheet, so that while the strength of the housing 1 is ensured, no extra burden is caused to the iron attraction 22 and the fixing of the outer side wall of the medium-pressure regulating tank 3, and the stability of the fixing of the housing 1 and the outer side wall of the medium-pressure regulating tank 3 is ensured. The casing 1 is fixedly connected with an annular sealing gasket 13 at the edge of the air inlet 11, and when the casing 1 and the medium-pressure regulating box 3 are mutually fixed, the sealing gasket 13 is arranged between the casing 1 and the outer side wall of the medium-pressure regulating box 3, so that a gap between the air inlet 11 and the vent 31 is filled, and the possibility that untreated noise is transmitted from the vent 31 is reduced. And the side of the shell 1 provided with the air inlet 11 is also provided with an annular buffer cushion 14, the buffer cushion 14 and the sealing gasket 13 are arranged in the same thickness, and the buffer cushion 14 is fixed at the edge of the shell 1. After casing 1 and 3 lateral walls of middling pressure regulating box are inhaled each other magnetically, the rigid contact of casing 1 with middling pressure regulating box 3 has been avoided to blotter 14, if when middling pressure regulating box 3 took place the vibration, certain vibration can be absorbed to blotter 14 to reduce the vibration of casing 1, ensured casing 1 and 3 lateral walls of middling pressure regulating box fixed stability.

Example 2: an in-line externally-hung ventilation louver silencer for a gas medium-pressure regulating box is different from that of embodiment 1 in that two sound absorption units 4 are arranged in a shell 1 and are respectively arranged on two sides of an air inlet 11, the sound absorption units 4 are arranged in a wavy shape and are arranged along the length direction of the shell 1, and the sound absorption units 4 on the two sides have the same wave bending tendency. When the shell 1 is magnetically attracted to the outer side wall of the medium-pressure regulating box 3, the air inlet 11 of the shell 1 is communicated with the ventilation opening 31 of the medium-pressure regulating box 3, and the sound absorption units 4 are respectively arranged on two sides of the air inlet 11, so that the air flow in the shell 1 is not influenced, and the ventilation and air dispersion of the medium-pressure regulating box 3 are ensured; if noise is transmitted out through the ventilation opening 31, the noise can enter the shell 1, and the sound absorption units 4 are arranged in a wavy manner, so that the sound waves are transmitted to the sound absorption unit 4 on the other side by the bending tendency of the sound absorption unit 4 after the sound waves are contacted with the sound absorption units 4, the sound waves are transmitted between the two sound absorption units 4 in a reciprocating manner, and the noise is gradually reduced. After the noise enters the shell 1, the transmission path of sound waves is increased, the contact range of the noise and the two sound absorption units 4 is also increased, and the transmission of the noise is greatly inhibited.

As shown in fig. 4, two horizontal slideways 51 are arranged on the outer side wall of the air outlet 12 of the housing 1, the two slideways 51 are respectively arranged on the upper side and the lower side of the air outlet 12 of the housing 1, a wind shield 52 is vertically arranged in the two slideways 51, and the wind shield 52 is connected with the sliding groove in a sliding manner along the length direction of the slideways 51. After the worker fixes the outer walls of the shell 1 and the medium-pressure regulating box 3 mutually, the sliding position of the wind shield 52 in the slide rail 51 can be controlled, the shielding size of the wind outlet 12 can be adjusted, the condition that rain and snow enter the shell 1 can be reduced in the environment of rain and snow, and the ventilation efficiency in the shell 1 can be adjusted. When the exposed space of the air outlet 12 is small, the air flow in the casing 1 is slowed down, and the space for the noise to spread to the external environment is reduced, so that the noise can be fully contacted with the sound absorption unit 4 in the casing 1, and the spread of the noise is greatly inhibited.

As shown in fig. 4, the wind guard 52 is uniformly provided with a plurality of air outlets 521. Even if the wind shield 52 completely shields the air outlet 12, the air outlet 521 is provided, so that the normal air flow in the shell 1 is not influenced, raised dust is prevented from entering the shell 1, the shielding effect on noise is achieved, and the propagation of noise is inhibited.

Example 3: the utility model provides an in-line outer hanging gas middling pressure case ventilation tripe silencer, the difference with embodiment 2 lies in, as shown in figure 5, sound absorbing unit 4 is provided with a plurality of (sound absorbing unit 4 is provided with 6 in this embodiment) in casing 1 level, sound absorbing unit 4 sets up between air intake 11 and air outlet 12, sound absorbing unit 4 divides into two sets ofly, and set up respectively the interval on two relative inner walls in casing 1, sound absorbing unit 4 of the same group is fixed in sound absorbing unit 4's homonymy, and leave the ventilation clearance with casing 1 in between the relative inner wall, make the casing 1 form one with air intake 11 and air outlet 12 intercommunication wavy ventiduct 15 each other.

When the air flow in the medium-pressure regulating box 3 enters the shell 1, the air flow flows along the flow direction of the air duct 15 and finally flows out of the air outlet 12 of the shell 1, so that the air flow of the silencer is realized; after the noise generated inside the medium-pressure regulating box 3 enters the casing 1, the sound absorption units 4 are arranged in a staggered mode in the process of transmitting the noise in the casing 1, so that the transmission of the noise in the casing 1 is prolonged, the sound absorption units 4 are in mutual contact in the process of transmitting the noise, the strength of the noise transmission is reduced sequentially, and the noise is effectively suppressed.

As shown in fig. 5 and 6, in order to reduce the damage of the air flow in the casing 1 to the sound-absorbing material, the upper and lower sides of each sound-absorbing unit 4 are provided with the stabilizing sheet 6 attached to the sound-absorbing unit 4, the attaching surfaces of the stabilizing sheet 6 and the sound-absorbing unit 4 are arranged in the same size, the edge of the stabilizing sheet 6 is fixed on the inner wall of the casing 1, and each stabilizing sheet 6 is uniformly provided with a plurality of through holes 61, so that the stabilizing sheet 6 can ensure the normal contact between the sound-absorbing unit 4 and the noise while fixing the sound-absorbing unit 4.

As shown in fig. 6, each stabilizing sheet 6 is perpendicularly fixedly connected with a plurality of spoilers 7 on one side of the attached sound absorption unit 4, the spoilers 7 are parallel to each other, the supporting strength of the stabilizing sheet 6 is increased due to the arrangement of the spoilers 7, and the sound transmitted in the shell 1 is reflected, so that the noise is transmitted in the shell 1, the reflection frequency of the sound wave is increased, the sufficient effect of the noise and the sound absorption unit 4 is ensured, and the decibel of the noise is reduced.

The working process is as follows: example 1: when a worker installs the silencer, one side of the shell 1, which is provided with the air inlet 11, is attached to the outer side wall, which is provided with the vent 31, of the medium-pressure regulating box 3, the magnet 22 is magnetically attracted to the outer surface of the medium-pressure regulating box 3, the vent 31 of the medium-pressure regulating box 3 is communicated with the air inlet 11 of the shell 1, and therefore the air entering the shell 1 flows out of the air outlet 12 of the shell 1, and after noise is spread into the shell 1, the noise interacts with the sound absorption material, and the noise spreading strength is weakened;

example 2: when a worker installs the silencer, one side of the shell 1, which is provided with the air inlet 11, is attached to the outer side wall, which is provided with the vent 31, of the medium-pressure regulating box 3, the magnet 22 is magnetically attracted to the outer surface of the medium-pressure regulating box 3, the vent 31 of the medium-pressure regulating box 3 is communicated with the air inlet 11 of the shell 1, and therefore the situation that air entering the shell 1 flows out of the air outlet 12 of the shell 1 is guaranteed, after noise is spread into the shell 1, the noise is spread between the two sound absorption units 4 in a reciprocating manner and interacts with the sound absorption units 4 due to the fact that the sound absorption material is wave-shaped, the spread of the noise is inhibited, the worker can adjust the air inlet 52 to slide, the size of the noise which is transmitted out of the shell 1 is reduced, and the spread of the noise;

example 3: when the staff is installing the muffler, open one side laminating that has air intake 11 with casing 1 on the lateral wall that middling pressure regulating box 3 was equipped with vent 31, and make magnet 22 magnetism inhale the surface at middling pressure regulating box 3, and make vent 31 of middling pressure regulating box 3 and the air intake 11 of casing 1 communicate each other, ensured, make the air that enters into in the casing 1 flow from casing 1's air outlet 12, the noise propagates to casing 1 back, because sound absorption unit 4 staggered arrangement, the propagation of noise in casing 1 has been prolonged, make the in-process of noise propagation, all contact with each other with every sound absorption unit 4, make the intensity of noise propagation progressively decrease in proper order, make the noise obtain effective suppression.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides an in-line outer hanging gas middling pressure regulating box ventilation tripe silencer which characterized by: the sound absorption type air conditioner comprises a shell (1) arranged on the outer wall of a ventilation opening (31) of a medium-pressure regulating box (3), wherein a fixing component (2) attached to the outer wall of the medium-pressure regulating box (3) is arranged on the shell (1), an air inlet (11) communicated with the ventilation opening (31) is formed in the side wall, attached to the medium-pressure regulating box (3), of the shell (1), a plurality of sound absorption units (4) are fixedly connected in the shell (1), and an air outlet (12) is formed in the shell (1);

fixed subassembly (2) include fixed strip (21) of rigid coupling on casing (1) two lateral walls that back on the back mutually, fixed strip (21) set up in casing (1) open have air intake (11) lateral wall adjacent two lateral walls on, fixed strip (21) towards on the lateral wall of middling pressure surge tank (3) the rigid coupling have a plurality of be used for magnetism to inhale magnet (22) on middling pressure surge tank (3) outer wall.

2. The in-line externally hung ventilation louver silencer of the gas medium-pressure regulating box according to claim 1, characterized in that: the air outlet (12) is arranged on one side, away from the air inlet (11), of the shell (1) and is arranged at the end part, away from the air inlet (11).

3. The in-line externally hung ventilation louver silencer of the gas medium-pressure regulating box according to claim 1, characterized in that: casing (1) is located the border department rigid coupling of air intake (11) and has sealed pad (13), and sealed pad (13) are fixed in casing (1) towards one side of middling pressure regulating box (3).

4. The in-line externally hung ventilation louver silencer of the gas medium-pressure regulating box according to claim 1, characterized in that: the shell (1) is provided with an annular buffer pad (14) on the outer side wall of the air inlet (11), and the buffer pad (14) is fixed at the edge of the shell (1).

5. The in-line externally hung ventilation louver silencer of the gas medium-pressure regulating box according to claim 1, characterized in that: the fixing strip (21) is provided with an embedded groove (211) for embedding the magnet (22), and the magnet (22) is fixed on the bottom wall of the embedded groove (211).

6. The in-line externally hung ventilation louver silencer of the gas medium-pressure regulating box according to claim 1, characterized in that: the shell (1) is made of a metal light sheet material.

7. The in-line externally hung ventilation louver silencer of the gas medium-pressure regulating box according to claim 1, characterized in that: the sound absorption units (4) are arranged on two sides of the air inlet (11) and fixed on two opposite inner walls in the shell (1), and the sound absorption units (4) are distributed along the length direction of the shell (1).

8. The in-line externally hung ventilation louver silencer of the gas medium-pressure regulating box according to claim 7, wherein: the sound absorption unit (4) is made of melamine ultra-light sound absorption sponge (4).