CN210768981U - Exhaust silencer of annular silencer for rainwater and spark inhibition and dust removal - Google Patents

Abstract

The utility model discloses a collection rainwater, mars restrain and ash removal's exhaust silencer of cyclic annular noise elimination body, including the silencer barrel, adopt at diesel engine exhaust silencer's lower extreme and can arrange the rainwater, mars restrain and ash removal's multi-functional device, upper middle portion at the silencer sets up a cyclic annular noise elimination body, the upper end of noise elimination body is the weather shield, and down dredge the rainwater, the lower part of cyclic annular noise elimination body forms the conical surface, form the convergent runner with the rain-proof cap of toper, noise elimination functional unit is constituteed to cyclic annular noise elimination body and barrel noise elimination section in the centre, when the volume of making an uproar is little, still can adopt the rigidity shell, do not establish barrel noise elimination section. Compared with other structures, the functional component has larger sound absorption circumference under the condition of the same flow area, and smaller chip spacing, and can obtain larger noise reduction amount and better medium-high frequency noise reduction effect compared with other structures, thereby forming a diesel engine exhaust muffler with rainwater and spark inhibition and dust removal functions and better noise reduction amount.

Description

Exhaust silencer of annular silencer for rainwater and spark inhibition and dust removal

Technical Field

The utility model belongs to the technical field of the silencer, concretely relates to collection rainwater, spark restrain and ash removal's exhaust silencer of cyclic annular noise elimination body.

Background

The exhaust silencer is used for the diesel engine and integrates an annular silencer for rainwater drainage, spark inhibition and ash removal. When the diesel engine works, the condition of insufficient combustion can occur, and the exhausted tail gas has a large amount of unburnt ash which can be accumulated and block the sound absorption protective surface when being discharged to the silencer, thereby influencing the normal use of the silencer. And common exhaust muffler does not have the function of removing rainwater generally, and few muffler manufacturers install a simple rain-proof cap or elbow at the exhaust muffler outlet, but this kind of rain water drainage method is inefficient, often still needs to install other in diesel engine exhaust system again and removes rainwater equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collection rainwater, mars restrain and ash removal's exhaust silencer of cyclic annular noise elimination body to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an exhaust silencer of cyclic annular noise elimination body of collection rainwater, spark suppression and ash removal, includes the silencer barrel, the upper end of silencer barrel is the exit end, and the lower extreme is the entrance point, the inside cavity of silencer barrel has put cyclic annular noise elimination body, and the upper and lower end outer wall of cyclic annular noise elimination body passes through stabilizer blade welded fastening on the inner wall of silencer barrel the position that lies in the entrance point in the silencer barrel installs the collecting tank, and the upper portion edge welded fastening of collecting tank has the ash removal swirler.

Furthermore, the inner and outer protective surfaces of the annular noise damper are perforated plates, a central flow channel is arranged at the center of the annular noise damper, a rain baffle inclined upwards from outside to inside is arranged on the annular surface of the upper end of the annular noise damper, the lower end of the annular noise damper is of a herringbone opening structure and is communicated with the central flow channel, a sound absorbing material is filled in an annular cavity formed by the inner and outer perforated plates, and compact sound-transmitting waterproof materials are attached to the inner side walls of the inner and outer protective surfaces.

Furthermore, the ash removal swirler comprises a flow guide body, a flow guide cover and rotational flow blades, wherein the flow guide cover is welded at one end of the flow guide body in a sealing mode, the tail end of the flow guide cover is welded on the inner wall of the drainage ash removal cavity through a support rod, a plurality of rotational flow blades are welded and fixed on the conical surface of the flow guide body, a rain-proof cap is welded and fixed on a tail end opening of the flow guide cover, the rain-proof cap is conical, and the rain-proof cap is opposite to the central position of a herringbone opening structure at the lower end of the annular noise.

Furthermore, a channel between the silencer cylinder and the annular silencer is an annular flow channel.

Furthermore, the lower space of the silencer cylinder body is a water and ash drainage cavity surrounding the outer cavity of the collecting barrel, and the water and ash drainage cavity is communicated with the water drainage pipes and the dust remover which are positioned at two sides of the inlet end of the silencer cylinder body.

Further, the tail ends of the supporting legs are welded with arc-shaped or annular steel plates.

Further, the silencer cylinder body is respectively a steel shell, a heat insulation material layer and a sound absorption material layer from outside to inside.

The utility model discloses a technological effect and advantage: the multifunctional device capable of discharging rainwater and inhibiting sparks and removing dust is arranged at the lower end of the silencer, the annular silencing section is arranged at the middle upper part of the silencer to reduce noise, and the high-temperature and high-speed use requirements of the exhaust silencer of the diesel engine can be met.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a view showing the structure and the fixing of the annular muffler body of the present invention.

Fig. 4-6 are schematic views of the annular muffler body of the present invention in various fixing manners.

Fig. 7 is an enlarged view of fig. 4 at a.

Fig. 8 is a schematic view of the installation structure of the ash removal cyclone of the present invention.

FIG. 9 is a schematic view of the structure of the swirl vanes mounted on the nacelle.

Fig. 10 is a schematic exhaust flow direction diagram according to the present invention.

Fig. 11 is a schematic view of the flow direction of rainwater according to the present invention.

In the figure: 1 silencer cylinder, 2 annular silencing bodies, 3 ash removal cyclones, 4 inlet ends, 5 outlet ends, 6 central runners, 7 annular runners, 8 rigid shells, 9 heat preservation material layers, 10 sound absorption material layers, 11 rain baffles, 12 support legs, 13 sound absorption materials, 14 protective surfaces, 15 flow guide covers, 16 flow guide bodies, 17 drainage ash removal cavities, 18 drainage pipes, 19 dust collectors, 20 collecting barrels, 21 rain-proof caps, 22 swirl vanes and 23 supporting rods.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a collection rainwater, spark restrain and ash removal's exhaust silencer of cyclic annular noise elimination body as shown in fig. 1-11, including silencer barrel 1, silencer barrel 1's upper end is exit end 5, and the lower extreme is entrance point 4, annular noise elimination body 2 has been put to silencer barrel 1's inside cavity, and on the upper and lower end outer wall of cyclic annular noise elimination body 2 passed through stabilizer blade 12 welded fastening on silencer barrel 1's inner wall set bucket 20 is installed to the position that lies in entrance point 5 in silencer barrel 1, and the upper portion edge welded fastening of set bucket 20 has ash removal swirler 3.

Specifically, the inner and outer protective surfaces 14 of the annular silencer 2 are perforated plates, a central flow channel 6 is arranged in the center of the annular silencer 2, a rain baffle 11 inclined upwards from outside to inside is arranged on the annular surface of the upper end of the annular silencer 2, the lower end of the annular silencer is of a herringbone opening structure and is communicated with the central flow channel 6, a sound absorbing material 13 is filled in an annular cavity formed by the inner and outer perforated plates, and dense sound-transmitting waterproof materials are attached to the inner side walls of the inner and outer protective surfaces 14.

The rain baffle 11 mainly plays a role in keeping off rain, when rainwater enters the outlet of the exhaust muffler, raindrops fall on the rain baffle 11, then slide downwards along the inclined plane of the rain baffle 11 to the drainage and ash removal cavity 17, and finally flow into the drain pipe 18 welded at the bottom of the drainage and ash removal cavity 17 to be discharged out of an exhaust system of the diesel engine.

The facing 14 mainly functions to protect the sound absorbing material 13. The protective surface 14 adopts a perforated plate structure and can be made of stainless steel, titanium materials and various carbon steel materials, the general perforation rate is generally 23 percent, and the thickness is 0.8-10 mm.

The sound absorbing material 13 mainly functions to absorb noise. The sound absorbing material 13 may be glass wool, rock wool, or other sound absorbing material.

The compact sound-transmitting waterproof material is mainly used for wrapping the sound absorption material for waterproofing. The compact sound-transmitting waterproof material can be a polyester film or other waterproof sound-absorbing materials.

Specifically, ash removal swirler 3 comprises baffle 16, kuppe 15 and whirl blade 22, kuppe 15 sealing weld is in the one end of baffle 16, and the tail end passes through bracing piece 23 welding on the inner wall of drainage deashing chamber 17, and the conical surface welded fastening of baffle 15 has a plurality of whirl blades 22, and the tail end mouth welded fastening of kuppe 15 has rain-proof cap 21, and rain-proof cap 21 is the taper, and rain-proof cap 21 is just to the central point of the lower extreme "herringbone" open structure of cyclic annular noise elimination body 2.

The air guide sleeve 15 mainly plays a role in guiding air flow, reducing air resistance and stopping extinguishing sparks so as to be beneficial to separating tail gas ash. The air guide sleeve 15 is welded at one end of the air guide body 16 in a sealing way, and the tail end of the air guide sleeve is welded on the inner cavity of the drainage ash removing cavity 17 to play a role in connecting and fixing the drainage ash removing cavity. Is made of stainless steel, titanium material and various carbon steel materials.

The guide body 16 is mainly used for installing the swirl vanes 22 and playing a role of supporting, and the tail end of the guide body 16 needs to be welded and fixed with the drainage ash removal cavity 17 by a support rod 23. The flow guide body is made of stainless steel, titanium materials and various carbon steel materials, is hollow and cylindrical, the length of the flow guide body 16 is 200-600mm, and the thickness of the shell is 1-10 mm.

The rain hat 21 mainly plays a role in blocking rainwater, when rainwater enters the outlet of the exhaust muffler, raindrops fall on the rain hat 21, then slide downwards along the inclined surface to the drainage and ash removal cavity 17, and finally flow into the drainage pipe 18 welded at the bottom of the drainage and ash removal cavity 17 to be discharged. The rain hat 21 is made of stainless steel, titanium material and various carbon steel materials.

The support rod 23 mainly plays a role in increasing the strength of the ash removal cyclone structure and improving the structural stability. The support rod 23 is made of stainless steel, titanium materials and various carbon steel materials and is a solid cylinder, and the diameter of the support rod 23 is 5mm-20 mm.

The drainage and dust removal cavity 17 mainly plays a role in collecting rainwater, sparks and dust.

Specifically, a channel between the muffler cylinder 1 and the annular muffler body 2 is an annular flow channel 7.

Specifically, the outer cavity of the lower space of the muffler cylinder 1 surrounding the collecting barrel 20 is a drainage and ash removal cavity 17, and the drainage and ash removal cavity 17 is communicated with drainage pipes 18 and a dust remover 19 which are positioned at two sides of the inlet end 4 of the muffler cylinder 1. The side arc surface of the collecting barrel 20 is provided with an airflow hole for the tail gas to escape.

The drain pipe 18 is mainly used for draining rainwater, and when the silencer meets rainy days, the drain pipe 18 is opened for draining rainwater in the silencer body timely.

Dust remover 19 is the dust removal effect mainly, and when the diesel engine was in work, the insufficient condition of burning can appear, and exhaust tail gas has a large amount of ashes that do not burn completely, and the deposition that the quality is big can deposit and store in cavity bottom ash remover, regularly opens dust remover 19 again, clears up the deposition of the inside.

Specifically, an arc-shaped or annular steel plate is welded to the end of the leg 12.

The legs 12 mainly serve to fix the annular muffler body 2. The tail ends of the supporting legs 12 are welded with arc-shaped or annular steel plates, the steel plates are connected with the perforated plate of the silencer cylinder body 1, and in this way, the annular silencer body 2 is provided with an upper fixed point and a lower fixed point, and is fixed with the perforated plate of the silencing section of the silencer cylinder body 1. Various fixing modes (such as figures 4-7) are adopted according to different strength requirements. Can be made of stainless steel, titanium material and various carbon steel materials.

Specifically, the silencer cylinder body 1 is respectively a steel shell 8, a heat insulation material layer 9 and a sound absorption material layer 10 from outside to inside. Wherein the inner side wall of the sound absorption material layer 10 is a perforated plate, and a dense sound-transmitting waterproof material is attached to the inner wall of the perforated plate.

Drainage characteristics: a part of the rainwater falls on the upper surface of the annular silencing body 2 and flows downwards along the inclined surface, and then falls into the rainwater and dust removing cavity 17 along the protective surface 14 of the annular silencing body 2 through a perforated plate and is discharged out of the silencer with the dust accumulated in the cavity.

Ash removal characteristics: a herringbone flow channel is formed between the annular noise elimination body 2 and the conical rain hat 21, airflow can be divided, a local vortex is formed at the lower part of the drainage ash removal cavity 17, and ash with large mass can be deposited and fall to the bottom of the cavity under the action of the vortex.

When the tail gas of diesel engine is at entrance point 4 that gets into the exhaust silencer, when the dusting swirler 3 that is in entrance point 4, can be with spark dust direction drainage deashing chamber 17 in, when the rainwater is at the exit end 5 that gets into the exhaust silencer, rainwater partly falls on the upper surface of annular silencer, partly falls on hollow position then drips on rain-proof cap 21, down flow along the inclined surface, can fall into drainage deashing chamber 17 in, and take the interior deposition of cavity to discharge the silencer, the deposition that the mass is big can deposit and store in the deashing ware of cavity bottom, regularly clear up the deashing ware again.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (7)

1. The utility model provides an exhaust muffler of collection rainwater, mars restrain and ash removal's cyclic annular noise elimination body, includes the silencer barrel, the lower extreme of silencer barrel is the entrance point, and the upper end is exit end, its characterized in that: the silencer comprises a silencer barrel, a dust removing cyclone, a collecting barrel, a dust removing cyclone and a dust removing cyclone, wherein an annular silencing body is arranged in an inner cavity of the silencer barrel, the outer walls of the upper end and the lower end of the annular silencing body are fixedly welded on the inner wall of the silencer barrel through support legs, the collecting barrel is arranged at the inlet end in the silencer barrel, and the dust removing cyclone is fixedly welded on the edge of the upper portion of the collecting barrel.

2. The exhaust muffler for a rainwater, spark and dust collecting annular muffler body according to claim 1, wherein: the inner and outer layers of the protective surface of the annular noise eliminator are perforated plates, a central flow channel is arranged in the center of the annular noise eliminator, a rain baffle inclined upwards from outside to inside is arranged on the ring surface of the upper end of the annular noise eliminator, the lower end of the annular noise eliminator is of a herringbone opening structure and is communicated with the central flow channel, an annular cavity formed by the inner and outer layers of the perforated plates is filled with sound absorbing materials, and compact sound-transmitting waterproof materials are attached to the inner side wall of the inner and outer layers of the protective surface.

3. The exhaust muffler for a rainwater, spark and dust collecting annular muffler body according to claim 1, wherein: the dust removal cyclone is composed of a flow guide body, a flow guide cover and rotational flow blades, the flow guide cover is welded at one end of the flow guide body in a sealing mode, the tail end of the flow guide cover is welded on the inner wall of the dust removal drainage cavity through a supporting rod, a plurality of rotational flow blades are welded and fixed on the conical surface of the flow guide body, a rain-proof cap is welded and fixed on a tail end opening of the flow guide cover and is conical, and the rain-proof cap is opposite to the central position of a herringbone opening structure at the lower end of the annular noise elimination body.

4. The exhaust muffler for a rainwater, spark and dust collecting annular muffler body according to claim 1, wherein: and a channel between the silencer cylinder body and the annular silencer is an annular flow channel.

5. The exhaust muffler for a rainwater, spark and dust collecting annular muffler body according to claim 1, wherein: the lower space of the silencer cylinder body is a water and ash drainage cavity surrounding the outer cavity of the collecting barrel, and the water and ash drainage cavity is communicated with the water drainage pipes and the dust remover which are positioned at two sides of the inlet end of the silencer cylinder body.

6. The exhaust muffler for a rainwater, spark and dust collecting annular muffler body according to claim 1, wherein: and the tail ends of the supporting legs are welded with arc-shaped or annular steel plates.

7. The exhaust muffler for a rainwater, spark and dust collecting annular muffler body according to claim 1, wherein: the silencer cylinder body is respectively a steel shell, a heat insulation material layer and a sound absorption material layer from outside to inside.

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