CN112253285A - Vehicle silencing device, vehicle comprising same and vehicle waste heat utilization method - Google Patents
Vehicle silencing device, vehicle comprising same and vehicle waste heat utilization method Download PDFInfo
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- CN112253285A CN112253285A CN202011117648.9A CN202011117648A CN112253285A CN 112253285 A CN112253285 A CN 112253285A CN 202011117648 A CN202011117648 A CN 202011117648A CN 112253285 A CN112253285 A CN 112253285A
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- ball cavity
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- circulating pipeline
- shell
- small ball
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002918 waste heat Substances 0.000 title claims abstract description 11
- 230000030279 gene silencing Effects 0.000 title claims abstract description 10
- 230000003584 silencer Effects 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 54
- 230000001743 silencing effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920001967 Metal rubber Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000003190 viscoelastic substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
- B60K13/04—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
- F01N1/023—Helmholtz resonators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/16—Silencing apparatus characterised by method of silencing by using movable parts
- F01N1/18—Silencing apparatus characterised by method of silencing by using movable parts having rotary movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
- F01N13/1822—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration for fixing exhaust pipes or devices to vehicle body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Exhaust Silencers (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a vehicle silencing device, a vehicle comprising the same and a vehicle waste heat utilization method, wherein the vehicle silencing device comprises a silencer, wherein the silencer comprises a shell, a double-ball cavity structure arranged in the shell, and an air inlet pipe and an air outlet pipe which are connected to the shell; the double-ball cavity structure comprises a large ball cavity and a small ball cavity, the small ball cavity is arranged in the large ball cavity, and through holes are formed in the large ball cavity and the small ball cavity; the gas flow discharged from the exhaust pipe of the vehicle engine sequentially enters the large ball cavity and the small ball cavity through the gas inlet pipe, then enters the large ball cavity through the small ball cavity and finally is discharged through the gas outlet pipe. The silencer is provided with the double-ball cavity structure comprising the large ball cavity and the small ball cavity, the small ball cavity is arranged in the small ball cavity, and the large ball cavity and the small ball cavity are provided with the through holes, so that the full-band silencing quantity can be improved, a good silencing effect can be obtained, and the noise of engineering vehicles can be reduced.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of engineering machinery, in particular to a vehicle silencing device, a vehicle comprising the same and a vehicle waste heat utilization method.
[ background of the invention ]
With the continuous improvement of the requirements of national laws and regulations on the performance of engineering vehicles, the vibration reduction, noise reduction and heat management of the engineering vehicles become more and more important, the vibration noise and heat management level of the engineering vehicles becomes an important index of product competitiveness and brand influence, and the advantages and disadvantages of products are directly influenced. As one of main vibration sources of the engineering vehicle, the vibration of an engine is transmitted to the muffler device, so that the structure of the muffler device is damaged, and the surface of the muffler device is radiated outwards; as one of the main noise sources of the engineering vehicle, the exhaust noise of the engine influences the external noise generated when the engineering vehicle works; as one of the main heat sources of the engineering vehicle, in the working process of the engine, the temperature of the body of the noise eliminator can be rapidly increased under the action of exhaust gas discharged by the engine, and part of heat can be dissipated in the atmosphere, so that the energy waste is caused, how to effectively reduce the vibration of the noise eliminator and how to effectively improve the noise reduction effect of the noise eliminator and how to effectively utilize the waste heat of the noise eliminator are technical problems to be solved by technical personnel in the field.
Therefore, the vehicle muffler device, the vehicle comprising the vehicle muffler device and the vehicle waste heat utilization method are provided.
[ summary of the invention ]
The invention aims to overcome the defects in the prior art, the silencer is internally provided with a double-ball cavity structure comprising a large ball cavity and a small ball cavity, the small ball cavity is arranged in the small ball cavity, the large ball cavity and the small ball cavity are respectively provided with a through hole, the full-band silencing quantity can be improved, a good silencing effect can be obtained, and the noise of an engineering vehicle can be reduced.
In order to achieve the above purpose/to solve the above technical problems, the present invention is realized by adopting the following technical scheme: a vehicle silencing device comprises a silencer, wherein the silencer comprises a shell, a double-ball cavity structure arranged in the shell, and an air inlet pipe and an air outlet pipe which are connected to the shell;
the double-ball cavity structure comprises a large ball cavity and a small ball cavity, the small ball cavity is arranged in the large ball cavity, and through holes are formed in the large ball cavity and the small ball cavity;
the gas flow discharged from the exhaust pipe of the vehicle engine sequentially enters the large ball cavity and the small ball cavity through the gas inlet pipe, then enters the large ball cavity through the small ball cavity and finally is discharged through the gas outlet pipe.
Optionally, the housing comprises an outer housing and an inner housing; the inner shell is arranged in the outer shell, a gap is reserved between the inner shell and the outer shell, a heat exchange device is arranged in the gap, and the heat exchange device can transfer collected heat energy to an engine of a vehicle.
Optionally, the housing comprises an outer housing and an inner housing; the inner shell is arranged in the outer shell, a gap is reserved between the inner shell and the outer shell, a heat exchange device is arranged in the gap, and the heat exchange device can transfer collected heat energy to an engine of a vehicle.
Optionally, the heat exchange device comprises a circulation pipeline attached to the inner shell, an electromagnetic valve for controlling the flow of the circulation pipeline, and a circulation pump for driving the heat exchange medium in the circulation pipeline to circularly flow; a water outlet of a circulating pipeline of the vehicle engine is provided with a temperature sensor; the water outlet of the circulating pipeline is communicated with the water inlet of the circulating pipeline, and the water outlet of the circulating pipeline and the water inlet of the circulating pipeline are both communicated with a water tank of a vehicle engine; the electromagnetic valve, the circulating pump and the temperature sensor are all in signal connection with the controller.
Optionally, the end of the air inlet pipe and/or the air outlet pipe extends into the shell, and air holes are distributed on the part in the shell.
Optionally, a plurality of exhaust fans are arranged in the air outlet pipe, and at least two of the exhaust fans rotate in different directions.
Optionally, the shell further comprises a bracket, a support and a damper, the shell is supported on the damper through the support, and the damper is arranged on the bracket.
Optionally, the bracket is an arched support plate, and two ends of the arched support plate are curled.
A waste heat utilization method of a vehicle muffler device comprises a muffler, a circulating pipeline, an electromagnetic valve and a circulating pump, wherein an air inlet pipe is communicated with an exhaust pipe of a vehicle engine; a water outlet of a circulating pipeline of the vehicle engine is provided with a temperature sensor; the water outlet of the circulating pipeline is communicated with the water inlet of the circulating pipeline, and the water outlet of the circulating pipeline and the water inlet of the circulating pipeline are both communicated with a water tank of a vehicle engine; the method is performed by a controller and comprises the following steps:
acquiring temperature information at a water outlet of the circulating pipeline through the temperature sensor;
and according to the temperature information, starting the circulating pump and adjusting the opening of the electromagnetic valve so as to control the flow of the heat exchange medium in the circulating pipeline.
An engineering vehicle comprises the vehicle muffler device.
Compared with the prior art, the invention has the following beneficial effects:
1, the silencer is internally provided with a double-ball cavity structure comprising a large ball cavity and a small ball cavity, exhaust gas from an exhaust pipe of a vehicle engine sequentially enters the large ball cavity and the small ball cavity through an air inlet pipe, then enters the large ball cavity through the small ball cavity and finally is exhausted through an air outlet pipe, and the multilayer attenuation function of the double-ball cavity structure can play a good silencing effect;
aiming at the noise characteristics of different frequency bands of the power system, the large spherical cavity is further divided into unequally-divided cavities by the partition plate, and the full-frequency-band silencing quantity is improved by the expansion and throttling action of the unequally-divided cavities, so that a better silencing effect is achieved, and the noise of the engineering vehicle is further reduced;
3, a plurality of exhaust fans are arranged in the air outlet pipe, at least two exhaust fans rotate in different directions, and the exhaust fans rotating in opposite directions can mutually offset air flow, block noise transmission and reduce exhaust noise under the condition of not influencing exhaust pressure loss;
4, the invention is provided with a circulating pipeline capable of exchanging heat with the air flow in the muffler, the circulating pipeline can be communicated with a circulating pipeline of a vehicle engine according to requirements, the waste heat of tail gas discharged by the vehicle engine is fully utilized to heat the vehicle engine, so that the vehicle engine is maintained in a proper temperature range, the energy consumption of the vehicle engine is reduced, the heat radiation of the muffler is reduced, and the purpose of improving the heat management performance of the engineering vehicle is achieved.
[ description of the drawings ]
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.
Fig. 1 is a schematic view of the overall structure of a vehicle muffler device according to an embodiment of the present invention.
Fig. 2 is a sectional view of a muffler device for a vehicle according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a bracket of a vehicle muffler device according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a first fan of a vehicle muffler device according to an embodiment of the present invention.
Fig. 5 is a structural schematic diagram of a second fan of a vehicle muffler device according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a shock absorber of a vehicle muffler device according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a double-ball cavity of a vehicle muffler device provided by an embodiment of the invention.
Fig. 8 is a schematic structural diagram of a water circulation pipeline of a vehicle muffler device according to an embodiment of the present invention.
Fig. 9 is a flowchart of a method for utilizing waste heat of a vehicle according to an embodiment of the present invention.
In the figure: 1. a support; 2. a shock absorber; 3. a support; 4. an exhaust fan; 41. a first fan; 42. a second fan; 5. an air outlet pipe; 6. a circulation line; 7. a double-ball cavity structure; 71. a large ball cavity; 72. a pellet cavity; 8. a muffler; 81. an outer housing; 82. an inner housing; 9. an air inlet pipe; 10. a separator.
[ detailed description ] embodiments
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, 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, but not all 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.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting.
In the description of the present invention, it is to be understood that the directional terms or positional relationships indicated are based on the directions or positional relationships shown in the drawings, and are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example one
Referring to fig. 1-2, a vehicle muffler device comprises a muffler 8, wherein the muffler 8 comprises a shell, a double-ball cavity structure 7 arranged in the shell, and an air inlet pipe 9 and an air outlet pipe 5 connected to the shell;
the double-ball cavity structure 7 comprises a large ball cavity 71 and a small ball cavity 72, the small ball cavity 72 is arranged in the large ball cavity 71, and through holes are formed in the large ball cavity 71 and the small ball cavity 72;
the gas flow discharged from the exhaust pipe of the vehicle engine enters the large ball cavity 71 and the small ball cavity 72 in sequence through the gas inlet pipe 9, then enters the large ball cavity 71 through the small ball cavity 72 and finally is discharged through the gas outlet pipe 5;
the small ball cavity 72 can be embedded in the large ball cavity 71, through holes are uniformly formed in the large ball cavity 71 and the small ball cavity 72, and the large ball cavity 71 is divided into chambers which are not divided equally by the partition board 10 according to the noise characteristics of different frequency bands of the power system. Each chamber is in a fan shape, and the fan angle of each chamber can be increased in a clockwise or anticlockwise gradient mode. As shown in fig. 2, the fan angle of each chamber in the clockwise direction is 30 degrees, 60 degrees, 90 degrees, and 180 degrees, but is not limited thereto, and the fan angle of each chamber may be other angles, and the principle is as follows: each unequal chamber is equivalent to a helmholtz resonant cavity, the airflow entering the shell enters the small ball cavity 72 through the unequal chamber of the large ball cavity 71 and then enters the large ball cavity 71 through expansion and throttling, when the frequency of sound wave is close to or equal to the natural frequency of the resonant cavity, resonance is caused, and the resonance frequency formula of the helmholtz resonant cavity is as follows:
wherein f is the resonant frequency of the Helmholtz resonator, c is the velocity of air, and S1Is the cross-sectional area of the inlet pipe (inlet pipe 9 in this case) |1Is the length of the inlet pipe (inlet pipe 9 in this case), S2Is the cross-sectional area of the cavity of the Helmholtz resonator2Is the cavity length of the helmholtz resonator;
from the above formula, the following conclusions can be drawn:
the cross sections and lengths of the cavities with different sizes (namely, the partition plates 10 divide the double-ball cavity structure 7 into a plurality of unequal chambers) can resonate with sounds with different frequencies to absorb and consume noise so as to finish noise reduction;
it should be noted that: c and S in formula1And l1In the technical scheme, the values are all constant.
The shape of the through hole can be round, oval, rectangular and the like;
the partition plate 10 can be fixedly connected in the large ball cavity 71 by adopting a fixed connection mode such as welding and the like, and the partition plate 10 and the large ball cavity 71 are in a vertical or inclined state;
the shape of the partition plate 10 is not limited as long as it can divide the large spherical cavity 71 into a plurality of closed chambers such as unequal chambers.
An air inlet pipe 9 and an air outlet pipe 5 are communicated with the silencer 8, an exhaust pipe of a vehicle engine is butted with the air inlet pipe 9, and air exhausted by the exhaust pipe of the vehicle engine enters the silencer 8 through the air inlet pipe 9 and is finally exhausted through the air outlet pipe 5;
the structure of the double-ball cavity structure 7 can be fixedly connected inside the muffler 8, and the number of the structures of the double-ball cavity structure 7 is not limited, so that the number of the structures of the double-ball cavity structure 7 can be configured according to actual working requirements and requirements;
the fixing mode that the structure of the double-ball cavity structure 7 can be fixedly connected inside the silencer 8 can be welding or riveting and the like;
in a further embodiment, the housing comprises an outer housing 81 and an inner housing 82; the inner shell 82 is arranged in the outer shell 81, a gap is reserved between the inner shell and the outer shell 81, a heat exchange device is arranged in the gap, in the working process of the vehicle engine, the temperature of the silencer 8 can be rapidly increased under the action of exhaust gas discharged by the vehicle engine, and the heat exchange device can transfer collected heat energy to the vehicle engine.
In a further embodiment, the heat exchange device includes a circulation line 6 attached to the inner case 82, a solenoid valve controlling the flow rate of the circulation line 6, and a circulation pump driving the flow of the heat exchange medium in the circulation line 6; a water outlet of a circulating pipeline of the vehicle engine is provided with a temperature sensor; the water outlet of the circulating pipeline 6 is communicated with the water inlet of the circulating pipeline, and the water outlet of the circulating pipeline and the water inlet of the circulating pipeline 6 are both communicated with a water tank of a vehicle engine; the electromagnetic valve, the circulating pump and the temperature sensor are all in signal connection with the controller.
In some cold or cold start environments, the engine is at an improper temperature, the energy consumption is high, the working efficiency is low, and in order to enable the engine to be at a reasonable working temperature, the engine needs to be preheated; and according to the temperature information, the circulating pump is started, and the opening degree of the electromagnetic valve is adjusted so as to control the flow of the heat exchange medium in the circulating pipeline 6.
The heat exchange medium in the water tank can be cooling liquid, clear water and other heat exchange media, the heat exchange medium in the water tank enters the circulating pipeline 6 from the water inlet of the circulating pipeline 6 by utilizing the circulating pump and then flows out from the water outlet of the circulating pipeline 6, the heat exchange between the heat exchange medium in the circulating pipeline 6 and the heat generated in the silencer 8 is realized, and the heat exchange medium flowing out from the water outlet of the circulating pipeline 6 flows into the circulating pipeline through the water inlet of the circulating pipeline and finally flows back into the water tank again from the water outlet of the circulating pipeline;
the circulation duct is attached to the outside of the vehicle engine.
In a further embodiment, the end of the air inlet pipe 9 and/or the air outlet pipe 5 extends into the shell, and air holes are distributed on the part in the shell;
in a further embodiment, a plurality of exhaust fans 4 are arranged in the air outlet pipe 5, and at least two exhaust fans 4 rotate in different directions;
referring to fig. 4-5, in particular, the exhaust fan 4 may include a first fan 41 and a second fan 42 arranged in front of and behind the exhaust fan 4, wherein the first fan 41 and the second fan 42 have opposite wind-driven rotation directions;
the first fan 41 and the second fan 42 with opposite wind-driven rotating directions are arranged in the air outlet pipe 5, when air flows pass through, the first fan 41 and the second fan 42 rotate in different directions under the influence of wind flow, and the exhaust fan 4 blocks noise transmission and reduces exhaust noise under the condition that exhaust pressure loss is not influenced;
the first fan 41 and the second fan 42 may be fitted into the outlet duct 5 through a cross fixed to an inner wall of the outlet duct 5, and the first fan 41 and the second fan 42 may communicate with the cross through a rotation shaft.
Referring to fig. 6, in a further embodiment, a support mechanism is disposed at the bottom of the muffler 8, the support mechanism is fixedly connected (welded) to the muffler 8, and the muffler 8 is fixed to an operating position (e.g., a frame) of the muffler device by the support mechanism. Specifically, the support mechanism may include a support 1, a support 3, and a damper 2, the housing may be supported on the damper 2 through the support 2, the damper 2 is disposed on the support 1, and the support 1 is mounted in the working position.
The shock absorber 2 can be made of metal rubber damping materials, specifically: the outer part is wound by metal wires and the inner part is filled with rubber materials. The combination of metal and rubber overcomes the disadvantage that common rubber materials and viscoelastic materials are too sensitive to temperature, so that the vibration damper 2 has a high loss factor to consume vibration energy and good thermal conductivity.
The shock absorber 2 is fixedly connected between the bracket 1 and the support 3, so that the shock absorber 2 can be provided with a fixing through hole for fixing; at this time, the damper 2 may be connected between the bracket 1 and the mount 3 by bolts penetrating the fixing through-holes.
Referring to fig. 3, in a further embodiment, the bracket 1 is of an arch shape and the end part is of a curled structure, and can be made of a steel plate by bending into an arch shape and curling at the end part. The edge curling structure can be penetrated with a pin shaft component and is arranged on the frame of the engineering vehicle of the bracket 1 or other suitable positions by using a pin shaft. The vibration is transmitted in the arch structure to be attenuated, so that a good low-frequency vibration isolation effect can be achieved.
Example two
A method for utilizing waste heat of a vehicle muffler device can be realized by adopting the vehicle muffler device in the first embodiment, and at least comprises a muffler 8, a circulating pipeline 6, a circulating pipeline and a circulating pump, wherein an air inlet pipe 9 is communicated with an exhaust pipe of a vehicle engine; a water outlet of a circulating pipeline of the vehicle engine is provided with a temperature sensor; the water outlet of the circulating pipeline 6 is communicated with the water inlet of the circulating pipeline, and the water outlet of the circulating pipeline and the water inlet of the circulating pipeline 6 are both communicated with a water tank of a vehicle engine; the method is performed by a controller and comprises the following steps:
acquiring temperature information at a water outlet of the circulating pipeline through the temperature sensor;
and according to the temperature information, starting the circulating pump and adjusting the opening of the electromagnetic valve so as to control the flow of the heat exchange medium in the circulating pipeline 6.
A temperature parameter control program is preset in the controller, information collected by the temperature sensor is accessed into the controller through a serial port, and the controller analyzes temperature information. The electromagnetic valve is an execution element of the controller and is also a controlled object of the controller, the controller judges the received real-time temperature signal, when the temperature is higher than or lower than a certain threshold value, the controller sends a control instruction to the electromagnetic valve, the electromagnetic valve receives the control signal of the controller and determines the opening degree of the electromagnetic valve according to the control instruction of the controller, and the flow of the heat exchange medium entering the muffler 8 is realized, so that the temperature of the heat exchange medium flowing into the circulating pipeline is adjusted;
when the temperature and the water temperature of the heat exchange medium at the water outlet are too high, the controller can control the electromagnetic valve to further increase the opening, so that the flow of the heat exchange medium entering the silencer 8 is increased, and the temperature of the heat exchange medium at the water outlet is reduced;
when the temperature and the temperature of the heat exchange medium at the water outlet are too low, the controller can control the electromagnetic valve to further reduce the opening, so that the flow of the heat exchange medium entering the silencer 8 is reduced, and the temperature of the heat exchange medium at the water outlet is increased.
The threshold value can be artificially set in a temperature parameter control program;
the controller can be of the type: lishile RC 28-14/30.
EXAMPLE III
A vehicle includes the vehicle muffler device of the first embodiment.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A vehicle silencing device is characterized by comprising a silencer, wherein the silencer comprises a shell, a double-ball cavity structure arranged in the shell, and an air inlet pipe and an air outlet pipe which are connected to the shell;
the double-ball cavity structure comprises a large ball cavity and a small ball cavity, the small ball cavity is arranged in the large ball cavity, and through holes are formed in the large ball cavity and the small ball cavity;
the gas flow discharged from the exhaust pipe of the vehicle engine sequentially enters the large ball cavity and the small ball cavity through the gas inlet pipe, then enters the large ball cavity through the small ball cavity and finally is discharged through the gas outlet pipe.
2. The vehicle muffler device of claim 1, wherein a plurality of baffles are disposed within the large ball cavity, the plurality of baffles dividing the large ball cavity into a plurality of unequal chambers.
3. The vehicle muffler assembly of claim 1, wherein the housing includes an outer housing and an inner housing; the inner shell is arranged in the outer shell, a gap is reserved between the inner shell and the outer shell, a heat exchange device is arranged in the gap, and the heat exchange device can transfer collected heat energy to an engine of a vehicle.
4. The vehicle muffler device according to claim 3, wherein the heat exchanging device includes a circulation line attached to the inner case, a solenoid valve controlling a flow rate of the circulation line, and a circulation pump driving a circulation flow of a heat exchanging medium in the circulation line; a water outlet of a circulating pipeline of the vehicle engine is provided with a temperature sensor; the water outlet of the circulating pipeline is communicated with the water inlet of the circulating pipeline, and the water outlet of the circulating pipeline and the water inlet of the circulating pipeline are both communicated with a water tank of a vehicle engine; the electromagnetic valve, the circulating pump and the temperature sensor are all in signal connection with the controller.
5. The vehicle muffler device according to claim 1, wherein the end of the intake pipe and/or the exhaust pipe extends into the housing, and the portion inside the housing is provided with air holes.
6. The vehicle muffler device according to claim 1 or 5, wherein a plurality of exhaust fans are provided in the outlet duct, and at least two of the exhaust fans rotate in different directions.
7. The vehicle muffler assembly of claim 1, further comprising a bracket, a mount, and a damper, wherein the housing is supported on the damper by the mount, and wherein the damper is disposed on the bracket.
8. The vehicle muffler assembly of claim 7, wherein the bracket is an arcuate support plate, and both ends of the arcuate support plate are crimped.
9. A method for utilizing the waste heat of a vehicle is characterized by comprising a silencer, a circulating pipeline, an electromagnetic valve and a circulating pump, wherein an air inlet pipe is communicated with an exhaust pipe of a vehicle engine; a water outlet of a circulating pipeline of the vehicle engine is provided with a temperature sensor; the water outlet of the circulating pipeline is communicated with the water inlet of the circulating pipeline, and the water outlet of the circulating pipeline and the water inlet of the circulating pipeline are both communicated with a water tank of a vehicle engine; the method is performed by a controller and comprises the following steps:
acquiring temperature information at a water outlet of the circulating pipeline through the temperature sensor;
and according to the temperature information, starting the circulating pump and adjusting the opening of the electromagnetic valve so as to control the flow of the heat exchange medium in the circulating pipeline.
10. A working vehicle comprising a vehicle muffler device according to any one of claims 1 to 8.
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| CN202011117648.9A CN112253285B (en) | 2020-10-19 | 2020-10-19 | Vehicle silencing device, vehicle comprising same and vehicle waste heat utilization method |
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| CN202011117648.9A CN112253285B (en) | 2020-10-19 | 2020-10-19 | Vehicle silencing device, vehicle comprising same and vehicle waste heat utilization method |
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| CN112253285A true CN112253285A (en) | 2021-01-22 |
| CN112253285B CN112253285B (en) | 2021-09-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898443A (en) * | 2021-10-09 | 2022-01-07 | 宿州学院 | Exhaust damping and silencing device of agricultural machinery |
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| CN112253285B (en) | 2021-09-07 |
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