CN113107640A

CN113107640A - Automobile exhaust purification silencer capable of increasing contact between silencing cotton and air

Info

Publication number: CN113107640A
Application number: CN202110453570.6A
Authority: CN
Inventors: 金建良; 赵玉城; 沈振华
Original assignee: Huzhou Xinxing Automobile Parts Co ltd
Current assignee: Huzhou Xinxing Automobile Parts Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-07-13

Abstract

The invention discloses an automobile exhaust purification silencer capable of increasing contact between silencing cotton and air, which comprises an exhaust pipe, wherein one end of the exhaust pipe is fixedly provided with a second baffle, the outer side of the second baffle is hinged with an installation hinged plate, the inner side of the installation hinged plate is fixedly sleeved with an exhaust pipe, the inner side of the exhaust pipe is fixedly provided with an outlet filter block, the inner side of the second baffle is fixedly provided with a branch pipe, and the inside of the branch pipe is provided with an exhaust hole. Through honeycomb disturbance pipe and amortization disturbance piece, honeycomb disturbance pipe gathers the air current to the spiral and discharges when first spiral purge tube and second spiral purge tube purify respectively, tail gas deflagration kinetic energy is tentatively subdued and has alleviateed the sound unrestrained, and break up the air current via the honeycomb aperture of honeycomb disturbance pipe, further eliminate air current kinetic energy, the noise cancelling effect has been strengthened, the tail gas flow in the tail gas pipe will be got into to amortization disturbance piece, further dispersion, and subdue the vibrations of air current, make the air current just by the amortization at the preliminary stage, subsequent amortization has been perfected.

Description

Automobile exhaust purification silencer capable of increasing contact between silencing cotton and air

Technical Field

The invention belongs to the technical field of automobile exhaust purification, and particularly relates to an automobile exhaust purification silencer capable of increasing contact between silencing cotton and air.

Background

In order to control the exhaust pollution of automobiles and reduce the emission of carbon monoxide, black smoke and other toxic gases, catalytic converters are used on automobiles from the end of the 70 s, and in the technical development of the past decades, automobile manufacturers use many different ways to reduce the emission pollution, such as exhaust circulation, fuel tank oil gas recovery and engine electronic control systems, but the catalytic converters are always the most effective method for reducing the emission of harmful exhaust gases. In the chemical reaction of the catalytic converter, noble metal atoms generate various transition reactions, so that the activation energy of the whole reaction is reduced, the reaction probability of converting waste gas into common harmless gas is further improved, and the catalyst per se still keeps the original state after the chemical reaction, which is the biggest difference between the catalytic converter and the traditional smoke exhaust filter. The catalytic converter not only has good service life, but also avoids the possibility of being blocked after long-term use.

The existing tail gas purifier, the three way catalyst device used in the market, can make CO, HC, NOx obtain the purification at the same time, but there is no silencing function, need to connect the muffler independently, and the silencing effect of most silencing devices is not obvious, and it is inconvenient to install and use while using, can't install according to the service conditions of the car, for example, the car tail gas purification muffler disclosed in Chinese patent publication No. CN2179465Y, set up the ventilative isolated catalyst bed equipped with catalyst in the middle section of the cylinder with both ends closed, one side of the catalyst bed is the exhaust buffer chamber, another side is the intake clean room, cross and fix to an end cap and intake pipe of the isolated catalyst bed extend to the intake clean room, (1) adopt the above-mentioned isolated catalyst bed structure, can greatly improve the tail gas purification effect, make the tail gas purification rate improve CO 18% than the original technology, HC 15%, (2) high efficiency of spark suppression, no spark in exhaust emission, and (3) prolonged service life more than one time, however, the following problems exist when it is used:

1. because the tail gas noise eliminator is not arranged, an independent noise eliminator needs to be connected when the tail gas noise eliminator is used, so that the problems of inconvenient use and resource waste are caused.

2. Because it does not connect installation use device, the inconvenience of installation when installing the use to and its inside exhaust emission structure is unreasonable, cause the incomplete and inconvenient problem of installation of tail gas treatment when using.

Disclosure of Invention

The invention aims to provide an automobile exhaust purification silencer with increased contact between silencing cotton and air, and aims to solve the problems that in the prior art, the prior exhaust purification silencer has no silencing function, needs to be independently connected with a silencer, has unobvious silencing effect, is inconvenient to install and use during use, cannot be installed according to the use condition of an automobile, and accordingly is low in purification silencing efficiency and inconvenient to use, and the existing exhaust purification silencer is provided, and CO, HC and NOx can be purified simultaneously due to the fact that the prior exhaust purification silencer and a three-way catalyst device used in the market have no silencing function in the use process.

In order to achieve the purpose, the invention provides the following technical scheme: an automobile exhaust purification silencer capable of increasing contact between silencing cotton and air comprises an exhaust pipe, wherein a second baffle is fixedly mounted at one end of the exhaust pipe, an installation hinged plate is hinged to the outer side of the second baffle, an outlet pipe is fixedly sleeved on the inner side of the installation hinged plate, an outlet filter block is fixedly mounted on the inner side of the outlet pipe, a branch pipe is fixedly mounted on the inner side of the second baffle, an exhaust hole is formed in the branch pipe, a sound filtering block is sleeved on the outer side of the branch pipe, a first baffle is fixedly mounted at one end, away from the second baffle, of the exhaust pipe, an air inlet pipe is sleeved on the inner side of the first baffle, a first guide pipe is communicated with the top of one end of the air inlet pipe, the first guide pipe is communicated with a second spiral purification pipe, a second guide pipe is communicated with the bottom of one end of the air inlet pipe, and the second guide pipe, the utility model discloses a heat-resisting amortization of air inlet pipe, including intake pipe, air inlet pipe, tail trachea, mounting bolt, spring, the top fixed mounting of spring has a movable ring, the activity of the outside of mounting bolt has cup jointed first lock ring, the inside at first lock ring both ends all articulates there is articulated bolt.

Preferably, the outlet duct runs through the second baffle and extends to the inner side of the second baffle, and one end of the branch duct, which is far away from the second baffle, is fixedly installed at one side of the second guide pipe and the first guide pipe.

Preferably, the outer side of the sound filtering block is fixedly arranged on the inner side of the tail gas pipe, and the sound deadening hole is formed in the sound filtering block.

Preferably, the top of the end, far away from the tail gas pipe, of the air inlet pipe is fixedly provided with a sealing hinged plate, and the air inlet pipe penetrates through the first baffle and extends to the inside of the tail gas pipe.

Preferably, the honeycomb disturbing pipes are movably mounted at one ends of the first spiral purifying pipe and the second spiral purifying pipe, which are far away from the second guide pipe and the first guide pipe respectively.

Preferably, the heat-resistant silencing cotton is positioned between the air inlet pipe and the first spiral purifying pipe and between the air inlet pipe and the second spiral purifying pipe.

Preferably, the silencing disturbance blocks are uniformly arranged on the inner wall of the tail gas pipe in a circumferential linear mode, and a heat insulation layer is fixedly arranged inside the pipe wall of the tail gas pipe.

Preferably, the inner side of the movable ring is movably sleeved on the outer side of the mounting bolt, the bottom end of the spring is mounted at the tops of the two ends of the first tightening ring, and the hinge bolt is hinged to penetrate through the first tightening ring and extend to the bottom of the second tightening ring.

Compared with the prior art, the invention has the beneficial effects that:

1. through the arrangement of the sealing hinged plate, an operator installs the sealing hinged plate at the exhaust pipe at the tail part of the automobile, further installs the mounting bolt and the movable ring at the bottom of the automobile, twists the hinged bolt to hinge and fix the first fastening ring and the second fastening ring, after the automobile exhaust is discharged in use, enters the exhaust pipe through the air inlet pipe, is guided by the first guide pipe and the second guide pipe, respectively enters the first spiral purifying pipe and the second spiral purifying pipe, is more efficiently purified by the contact area between the two purifying pipes and the gas, is discharged, enters the honeycomb disturbing pipe to disperse the disturbance of the air flow, enters the exhaust pipe, reduces the vibration of the air flow through the silencing disturbing block in the exhaust pipe, and after the air flow is uniformly dispersed, enters the branch pipe through the exhaust hole after flowing to the sound filtering block and the sound eliminating hole, filters the sound and the final substances through the outlet filtering block, through the outlet duct exhaust, this scheme can effectively increase the area of contact of tail gas air current and inside to perfect purifying effect, strengthened the silence effect.

2. Through setting up the construction bolt, install construction bolt and loose collar in the bottom of car, and twist and move articulated bolt and tightly bind round with first and second and tightly bind round articulated fixedly, tail gas combustion gas stream moves the exhaust pipe when the car starts, make it take place the vibrations of certain frequency, and the first tight hoop that the construction bolt activity cup jointed can be under the spring action of spring, make overall structure vibrations eliminate by elasticity external force vibrations diffusion, the condition of vibrations sound production has been reduced, and can cushion the exhaust pipe, avoid receiving the injury, service life is prolonged.

3. Through setting up honeycomb disturbance pipe and amortization disturbance piece, honeycomb disturbance pipe gathers the air current to the spiral and discharges when first spiral purge tube and second spiral purge tube purify respectively, tail gas deflagration kinetic energy is tentatively subdued and has alleviateed the sound unrestrained, and break up the air current via the honeycomb aperture of honeycomb disturbance pipe, further eliminate air current kinetic energy, the noise cancelling effect has been strengthened, the tail gas flow in the tail gas pipe will be got into to amortization disturbance piece, further dispersion, and subdue the vibrations of air current, make the air current just by the amortization at the preliminary stage, subsequent amortization has been perfected.

Drawings

FIG. 1 is a front perspective structural view of the present invention;

FIG. 2 is a schematic diagram of a right-view external structure according to the present invention;

FIG. 3 is a left side sectional view of the internal structure of the present invention;

FIG. 4 is a front sectional view of the internal structure of the present invention;

fig. 5 is an enlarged schematic view of the structure at the position a of the present invention.

In the figure: 1. a tail gas pipe; 2. an air inlet pipe; 3. a sealing hinge plate; 4. a first grip; 5. installing a bolt; 6. a movable ring; 7. installing a hinged plate; 8. an air outlet pipe; 9. a second tightening band; 10. a hinge bolt; 11. a spring; 12. a noise-reduction disturbance block; 13. a honeycomb disturbing pipe; 14. heat-resistant noise reduction cotton; 15. a first spiral purge tube; 16. a first guide tube; 17. a silencing hole; 18. an outlet filter block; 19. an exhaust hole; 20. a branch pipe; 21. a sound filtering block; 22. a second guide tube; 23. a second spiral purge tube; 24. a second baffle; 25. a first baffle plate; 26. an insulating layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-5, the present invention provides a technical solution: an automobile exhaust purification silencer for increasing contact between silencing cotton and air comprises an exhaust pipe 1, wherein one end of the exhaust pipe 1 is fixedly provided with a second baffle 24, the outer side of the second baffle 24 is hinged with an installation hinged plate 7, the inner side of the installation hinged plate 7 is fixedly sleeved with an outlet pipe 8, the inner side of the outlet pipe 8 is fixedly provided with an outlet filter block 18, the inner side of the second baffle 24 is fixedly provided with a branch pipe 20, the inner part of the branch pipe 20 is provided with an exhaust hole 19, the outer side of the branch pipe 20 is sleeved with a sound filtering block 21, one end of the exhaust pipe 1, which is far away from the second baffle 24, is fixedly provided with a first baffle 25, the inner side of the first baffle 25 is sleeved with an air inlet pipe 2, the top of one end of the air inlet pipe 2 is communicated with a first guide pipe 16, the first guide pipe 16 is communicated with a second spiral purification pipe 23, the bottom of one end of the air inlet, the outer side of one end of the air inlet pipe 2 is sleeved with heat-resistant silencing cotton 14, the inner wall of the tail gas pipe 1 is fixedly provided with a silencing disturbance block 12, the outer side of the tail gas pipe 1 is movably sleeved with a second clamping ring 9, two ends of the second clamping ring 9 are hinged with mounting bolts 5, the outer side of the mounting bolts 5 is sleeved with a spring 11, the top of the spring 11 is fixedly provided with a movable ring 6, the outer side of the mounting bolts 5 is movably sleeved with a first clamping ring 4, the inner parts of two ends of the first clamping ring 4 are hinged with hinge bolts 10, the air outlet pipe 8 penetrates through the second baffle 24 and extends to the inner side of the second baffle 24, one end of the branch pipe 20 far away from the second baffle 24 is fixedly arranged at one side of the second guide pipe 22 and the first guide pipe 16, the outer side of the sound filtering block 21 is fixedly arranged at the inner side of the tail gas pipe 1, the sound eliminating hole 17 is arranged inside the sound filtering block 21, and the intake duct 2 penetrates the first baffle 25 and extends to the inside of the exhaust duct 1.

In the embodiment, by arranging the sealing hinged plate 3, an operator installs the sealing hinged plate 3 at the exhaust pipe at the tail part of the automobile, further installs the installation bolt 5 and the movable ring 6 at the bottom of the automobile, twists the hinged bolt 10 to hinge and fix the first tightening ring 4 and the second tightening ring 9, when in use, the automobile exhaust is discharged, enters the exhaust pipe 1 through the air inlet pipe 2, is guided by the first guide pipe 16 and the second guide pipe 22, respectively enters the first spiral purification pipe 15 and the second spiral purification pipe 23, is purified more efficiently by the contact area between the two purification pipes and the gas, enters the honeycomb disturbance pipe 13 to disperse the airflow disturbance, enters the exhaust pipe 1, reduces the vibration of the airflow through the noise reduction disturbance block 12 in the exhaust pipe 1, disperses the airflow uniformly, enters the branch pipe 20 through the exhaust hole 19 after flowing to the noise filter block 21 and the noise reduction hole 17 and standing still, and the outlet filter block 18 is used for final sound filtering and final filtering of substances except gases, and the spraying of tail flames is effectively prevented and the tail flames are discharged through the air outlet pipe 8.

Example two:

as shown in fig. 1 to 5, on the basis of the first embodiment, the present invention provides a technical solution: the inner side of the movable ring 6 is movably sleeved on the outer side of the mounting bolt 5, the bottom end of the spring 11 is mounted at the top of the two ends of the first tightening ring 4, and the hinge bolt 10 is hinged to penetrate through the first tightening ring 4 and extend to the bottom of the second tightening ring 9.

In this embodiment, through setting up mounting bolt 5, install mounting bolt 5 and activity ring 6 in the bottom of car, and twist and move articulated bolt 10 and tightly bind 4 and the articulated fixed of second lock ring 9 with first lock ring, tail gas combustion gas flow when the automobile starts moves tail gas pipe 1, make it take place the vibrations of certain frequency, and the first lock ring 4 that mounting bolt 5 activity cup jointed can be under spring 11's elastic force effect, make overall structure vibrations eliminate by elasticity external force vibrations diffusion, the condition of vibrations sound production has been reduced, and can cushion tail gas pipe 1, avoid receiving the injury, and service life is prolonged.

Example three:

as shown in fig. 1 to 5, on the basis of the first embodiment and the second embodiment, the present invention provides a technical solution: the honeycomb disturbing pipes 13 are movably mounted at one ends of the first spiral purifying pipe 15 and the second spiral purifying pipe 23 far away from the second guide pipe 22 and the first guide pipe 16 respectively, and the silencing disturbing blocks 12 are uniformly arranged on the inner wall of the tail gas pipe 1 in a circumferential linear mode.

In this embodiment, through setting up honeycomb disturbance pipe 13 and amortization disturbance piece 12, honeycomb disturbance pipe 13 gathers the air current to the spiral when first spiral purge tube 15 and second spiral purge tube 23 purify respectively and discharges, tail gas deflagration kinetic energy is preliminary subdued and has alleviateed the sound unrestrained, and break up the air current via the honeycomb aperture of honeycomb disturbance pipe 13, further eliminate air current kinetic energy, the noise cancelling effect has been strengthened, amortization disturbance piece 12 will get into the tail gas stream in tail gas pipe 1, further dispersion, and subdue the vibrations of air current, make the air current just silenced in the preliminary stage, subsequent amortization has been perfected, first spiral purge tube 15 and second spiral purge tube 23 are reverse starting point spiral and evenly interweave, contact area has been increased, and make the air current follow spiral direction stationary flow, be convenient for subsequent amortization.

Example four:

as shown in fig. 1 to 5, on the basis of the first embodiment, the second embodiment and the third embodiment, the present invention provides a technical solution: the heat-resistant silencing cotton 14 is positioned between the air inlet pipe 2 and the first spiral purifying pipe 15 and the second spiral purifying pipe 23, and a heat insulation layer 26 is fixedly arranged inside the pipe wall of the tail gas pipe 1.

In this embodiment, heat-resisting amortization cotton 14 cup joints the inboard at intake pipe 2 and first spiral purge tube 15 and second spiral purge tube 23, make the air current when through exhaust pipe 1 is inside, increased the area of contact with the air current, further subduct the amortization, the noise cancelling effect is strong, alleviate inside and outside temperature difference during the effect of insulating layer 26, prevent under the condition of exhaust pipe 1 high temperature, arouse metal internal stress by cold water watering and weaken amortization and result of use, and can prevent the probability of taking place the scald, the security has been increased.

The working principle and the using process of the invention are as follows: firstly, an operator installs the sealing hinged plate 3 at the exhaust pipe at the tail part of the automobile, and then installs the installation bolt 5 and the movable ring 6 at the bottom of the automobile, and twists the hinged bolt 10 to hinge and fix the first fastening hoop 4 and the second fastening hoop 9, when the automobile is started, the air flow discharged by the tail gas flows to the tail gas pipe 1, so that the tail gas pipe 1 generates vibration with a certain frequency, and the first fastening hoop 4 movably sleeved by the installation bolt 5 can enable the vibration of the whole structure to be dispersed and eliminated by the vibration of the external force of the elastic force under the elastic force action of the spring 11, thereby reducing the vibration and sound production conditions, buffering the tail gas pipe 1, avoiding damage and prolonging the service life, the air flow of the automobile tail gas enters the tail gas pipe 1 through the air inlet pipe 2, and respectively enters the first spiral purifying pipe 15 and the second spiral purifying pipe 23 after being guided by the first guide pipe 16 and the second guide pipe 22, the contact area between the honeycomb disturbing pipe 13 and the gas is increased by two purification pipelines, the gas is more efficiently purified and then discharged, the gas enters the honeycomb disturbing pipe 13 to disturb and disperse the gas flow, the tail gas enters the tail gas pipe 1, the vibration of the gas flow is reduced by the silencing disturbing block 12 in the tail gas pipe 1, the gas flow is uniformly dispersed, the gas flows to the sound filtering block 21 and the silencing hole 17 and enters the branch pipe 20 through the exhaust hole 19 after being rested, the final sound filtering and filtering are carried out by the outlet filtering block 18, substances except gas are finally removed, the blowout of tail flames is effectively prevented, the gas is discharged through the gas outlet pipe 8, the scheme can effectively increase the contact area between the tail gas flow and the inside, the purification effect is improved, the silencing effect is enhanced, through the arrangement of the honeycomb disturbing pipe 13 and the silencing disturbing block 12, the honeycomb disturbing pipe 13 gathers the gas flow to be discharged to a spiral when the first spiral purification pipe 15 and the second spiral purification pipe 23 are, the tail gas detonation kinetic energy is primarily reduced to reduce the sound waves, the airflow is scattered through the honeycomb pores of the honeycomb disturbing pipe 13, the airflow kinetic energy is further eliminated, the silencing effect is enhanced, the tail gas flow in the tail gas pipe 1 is entered into the silencing disturbing block 12, the further dispersion is realized, the vibration of the airflow is reduced, the airflow is silenced in a primary stage, subsequent silencing is perfected, the first spiral purifying pipe 15 and the second spiral purifying pipe 23 are uniformly interwoven in a reverse starting point spiral mode, the contact area is increased, the airflow is guided to flow stabilization along the spiral, and subsequent silencing is facilitated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an increase amortization cotton and air contact's automobile exhaust purifies silencer, includes tail gas pipe (1), its characterized in that: the tail gas pipe comprises a tail gas pipe (1), a second baffle (24) is fixedly installed at one end of the tail gas pipe (1), an installation hinged plate (7) is hinged to the outer side of the second baffle (24), an outlet pipe (8) is fixedly sleeved on the inner side of the installation hinged plate (7), an outlet filter block (18) is fixedly installed on the inner side of the outlet pipe (8), a branch pipe (20) is fixedly installed on the inner side of the second baffle (24), an exhaust hole (19) is formed in the branch pipe (20), a sound filter block (21) is sleeved on the outer side of the branch pipe (20), a first baffle (25) is fixedly installed at one end, far away from the second baffle (24), of the tail gas pipe (1), a gas inlet pipe (2) is sleeved on the inner side of the first baffle (25), a first guide pipe (16) is communicated with one end of the gas inlet pipe (2), and a second spiral purifying pipe (, the bottom intercommunication of intake pipe (2) one end has second stand pipe (22), second stand pipe (22) intercommunication has first spiral purge tube (15), heat-resisting amortization cotton (14) have been cup jointed in the outside of intake pipe (2) one end, the inner wall fixed mounting of tail gas pipe (1) has amortization disturbing block (12), the outside activity of tail gas pipe (1) has been cup jointed the second lock ring (9), the both ends of second lock ring (9) all articulate there is mounting bolt (5), spring (11) have been cup jointed in the outside of mounting bolt (5), the top fixed mounting of spring (11) has loose ring (6), the outside activity of mounting bolt (5) has been cup jointed first lock ring (4), the inside at first lock ring (4) both ends all articulates there is articulated bolt (10).

2. The automobile exhaust purification silencer for increasing the contact between silencing cotton and air as recited in claim 1, wherein: the air outlet pipe (8) penetrates through the second baffle plate (24) and extends to the inner side of the second baffle plate (24), and one end, far away from the second baffle plate (24), of the branch pipe (20) is fixedly installed on one side of the second guide pipe (22) and one side of the first guide pipe (16).

3. The automobile exhaust purification silencer for increasing the contact between silencing cotton and air as recited in claim 1, wherein: the outer side of the sound filtering block (21) is fixedly arranged on the inner side of the tail gas pipe (1), and a sound deadening hole (17) is formed in the sound filtering block (21).

4. The automobile exhaust purification silencer for increasing the contact between silencing cotton and air as recited in claim 1, wherein: the top fixed mounting that trachea (1) one end was kept away from in intake pipe (2) has sealed articulated slab (3), and intake pipe (2) run through first baffle (25) and extend to the inside of trachea (1).

5. The automobile exhaust purification silencer for increasing the contact between silencing cotton and air as recited in claim 1, wherein: and honeycomb disturbing pipes (13) are movably arranged at one ends of the first spiral purifying pipe (15) and the second spiral purifying pipe (23) far away from the second guide pipe (22) and the first guide pipe (16) respectively.

6. The automobile exhaust purification silencer for increasing the contact between silencing cotton and air as recited in claim 1, wherein: the heat-resistant noise reduction cotton (14) is positioned between the air inlet pipe (2) and the first spiral purifying pipe (15) and the second spiral purifying pipe (23).

7. The automobile exhaust purification silencer for increasing the contact between silencing cotton and air as recited in claim 1, wherein: the noise reduction disturbance blocks (12) are uniformly arranged on the inner wall of the tail gas pipe (1) in a circumferential linear mode, and a heat insulation layer (26) is fixedly arranged inside the pipe wall of the tail gas pipe (1).

8. The automobile exhaust purification silencer for increasing the contact between silencing cotton and air as recited in claim 1, wherein: the inboard activity of activity ring (6) is cup jointed in the outside of construction bolt (5), the top at first lock ring (4) both ends is installed to the bottom of spring (11), articulated bolt (10) are articulated to run through first lock ring (4) and extend to the bottom of second lock ring (9).