CN212272363U - Device for treating and reducing noise of motor vehicle tail gas - Google Patents

Abstract

The utility model discloses a device for treating motor vehicle exhaust and reducing noise, which comprises a catalysis chamber with a horizontal ring columnar structure provided with a three-effect catalyst, the left end of the catalytic chamber is sequentially provided with a desulfurizing chamber with a cone ring platform structure and a lead removing chamber with a ring columnar structure, fixed flanges are hermetically fixed on the ring surfaces at the left end and the right end of the lead removing chamber, the sulfur removing chamber and the catalyzing chamber, the fixed flange at the left end of the catalysis chamber is provided with the connecting mechanism and is sealed and fixed with the fixed flange at the end adjacent to the sulfur removal chamber through the connecting mechanism, the utility model can conveniently replace the raw materials in the sulfur removal chamber and the lead removal chamber, is convenient to maintain, reduces the maintenance cost, therefore, the desulfurization and the deleading in the tail gas of the engine become feasible in practical application, the purification efficiency of the three-way catalyst is indirectly improved, the service life is prolonged, and the noise of the motor vehicle can be reduced by discharging the treated tail gas from the straight pipe type silencer at the tail end of the device.

Description

Device for treating and reducing noise of motor vehicle tail gas

Technical Field

The utility model belongs to the technical field of motor vehicle exhaust handles, concretely relates to a device that is used for motor vehicle exhaust to handle, fall and make an uproar.

Background

In China, the automobile industry is rapidly developed in recent years, random automobiles are increased, the total amount of pollutant emission is also increased continuously, the automobile exhaust emission becomes the main source of urban air pollution in China, and the air pollution type of a large city with more than 100 million people in China is converted from a coal-smoke type to a mixed type or an automobile pollution type; according to the new standard requirement of motor vehicle exhaust detection execution executed from 11.1.2019, a motor vehicle detection station updates and upgrades detection equipment, the exhaust detection accuracy is increased, the emission limit standard is stricter, oxynitride detection is added to a diesel vehicle, vehicle OBD (vehicle fault diagnosis instrument) inspection is added before the exhaust detection, then a fault lamp of the vehicle displays or detects a fault, the exhaust detection cannot be carried out, the condition that the annual inspection of the motor vehicle exhaust is failed to be jointly carried out by an environmental protection administrative department and a public security traffic administration department, traffic policemen are responsible for commanding, intercepting the vehicle and the treatment of the vehicle exceeding the standard, environmental protection personnel are responsible for monitoring, and the condition of the law enforcement personnel is explained to relative people on site. When the phenomenon that the gasoline vehicle emits black smoke and blue smoke is found in the inspection, the blackness of the tail gas of the diesel vehicle exceeds Ringelmann 1 level, the traffic police punishs and temporarily withholds the vehicle number plate and the driving certificate according to the law and the place, and keeps temporarily withholding certificates, the environment protection law enforcement personnel give out a notice of administration of the responsible order to the opposite person of the illegal vehicle and punish according to the law.

At present, the tail gas treatment usually adopts a secondary air supply combustion method at the front end of an exhaust pipe, namely, an air supply hole and an air supply guide pipe are arranged at the end of a cylinder head exhaust hole close to the exhaust pipe, so that a large amount of carbon monoxide and hydrocarbon are changed into harmless carbon dioxide and water to be discharged. However, the temperature of the exhaust gas after re-combustion is too high, and when the engine works for a long time, the secondary air supply channel can cause the aging of the exhaust pipe, i.e. the exhaust pipe cannot be used durably. Most of the conventional tail gas treatment devices are three-way catalytic converters, which are mainly exhaust purification devices for converting CO, HC and NOx in tail gas discharged from motor vehicles into gases harmless to human bodies, but most of the conventional technologies ignore a small amount of sulfur and lead contained in the tail gas of the motor vehicles, the presence of sulfur can reduce the catalytic conversion efficiency, and the presence of lead can permanently poison a catalyst in the three-way catalytic converter, so that the treatment effect is ineffective.

Most of the current researches are dedicated to the treatment and purification of automobile exhaust, but the purification of the motorcycle exhaust is neglected, the engine used by the motorcycle is an automobile engine, a large amount of exhaust is generated as the automobile is driven, sulfur and lead contained in the adsorbed exhaust can be eliminated in the prior art, but the actual raw material consumption is large, the exhaust is filled into a pipe fitting during the application, the pipe fitting is welded with a three-way catalytic converter or is connected with the three-way catalytic converter through a flange in a sealing way, but the raw material needs to be replaced after being used for a period of time, and the replacement frequency is large, so the exhaust is not effectively utilized.

SUMMERY OF THE UTILITY MODEL

The utility model provides a defect and problem to current turbo charger existence, the utility model provides a device that is used for motor vehicle exhaust to handle, falls and makes an uproar, this device is provided with the room of desulfurizing and the room of deleading before three-way catalytic converter, to the elimination processing of sulphur and plumbous in the engine exhaust, can conveniently change the room of desulfurizing moreover and remove the indoor raw materials of plumbous to desulfurization and deleading become feasible in practical application in making engine exhaust.

The utility model provides a scheme that its technical problem adopted is: a device for treating and reducing noise of motor vehicle tail gas comprises a catalysis chamber of a transverse annular columnar structure provided with a three-effect catalyst, wherein a sulfur removal chamber of a conical ring platform structure and a lead removal chamber of an annular columnar structure are sequentially arranged at the left end of the catalysis chamber, fixed flanges are hermetically fixed on the ring surfaces of the left end and the right end of the lead removal chamber, the sulfur removal chamber and the catalysis chamber, fixed flanges are arranged on the fixed flanges at the left end of the catalysis chamber and are hermetically fixed with the fixed flanges at one end adjacent to the sulfur removal chamber through connecting mechanisms, each connecting mechanism comprises a movable flange and a wrench ring disc, a convex ring platform of the movable flange is axially provided with a convex ring platform, the movable flange and the wrench ring disc are sleeved on the catalysis chamber in a sealing mode, the convex ring platform of the movable flange is sleeved in the left end of the catalysis chamber in a sealing mode and can slide left and right along the inner ring wall of the catalysis chamber, a plurality of support rods penetrating through the fixed flange at the left end of the, the other end of bracing piece all links together with the spanner dish on the catalysis room, the bracing piece all can be in the fixed flange that runs through on the axial slip, all the cover is equipped with the top spring and outwards pushes away the top flange on the connecting rod between movable flange and the fixed flange on the coupling mechanism, and the flange ring dish of movable flange is together sealed fixed with the fixed flange of sulphur removal room right-hand member, it has clinoptilolite to remove the indoor packing of plumbum, it has active carbon except that the flow tube to remove the indoor packing of sulphur.

Furthermore, the left end of the lead removing chamber is fixedly connected with an exhaust port of an engine of a motor vehicle in a sealing way through a metal joint.

Furthermore, the right end of the catalysis chamber is fixedly connected with a gas buffer chamber in a sealing manner, the other end of the gas buffer chamber is fixedly connected with a straight pipe type silencer in a sealing manner, and the lead removing chamber, the sulfur removing chamber, the catalysis chamber, the buffer chamber and the straight pipe type silencer are all coaxially arranged.

Further, the catalyst in the three-way catalyst is CeO 2.

Furthermore, the length of the connecting rod is a, and the height of the convex ring platform of the movable flange is b, wherein a is less than b.

Furthermore, a mounting groove is formed in the circumferential side face of the top end of the convex ring table of the connecting mechanism movable flange along the circumference, a sealing ring is sleeved in the mounting groove, and the sealing ring protrudes out of the mounting groove in the radial direction.

Furthermore, the diameter of the outer ring of the fixed flange provided with the connecting mechanism is c, and the diameter of the outer ring of the wrench ring disc of the connecting mechanism is d, wherein d is larger than c.

Furthermore, a connecting mechanism is arranged on a fixed ring disc at the right end of the lead removing chamber and is connected with one end, adjacent to the sulfur removing chamber, of the lead removing chamber in a sealing mode through the connecting mechanism.

Furthermore, one end of a movable flange on the connecting mechanism at the left end of the catalytic chamber is provided with a shaft hole and is hinged with a fixed flange at the left end of the catalytic chamber through a pin shaft.

Furthermore, 4 supporting rods penetrating through the fixed ring disc are uniformly and axially arranged on the flange ring disc of the movable flange along the circumference.

The utility model has the advantages that: the utility model provides a device for motor vehicle exhaust is handled, fall device of making an uproar, including removing the plumbous room, the sulphur removal room, the catalysis room, surge chamber and straight tube muffler, it sets up before the catalysis room to remove plumbous room and sulphur removal room, it has clinoptilolite to remove plumbous intussuseption, lead in the tail gas is used for taking out, thereby prevent that lead from making the permanent poisoning of catalyst of three-way catalytic converter in the catalysis room and making three-way catalytic converter inefficacy, it has the active carbon sulphur removal pipe to fill in the sulphur removal room, sulfur in the tail gas is used for taking out, prevent that sulfur from reducing the efficiency of the catalytic conversion that exists of three-way catalytic converter, and remove the plumbous room, remove and be in the same place through flange joint between sulphur room and the catalysis room, it is convenient to dismantle the change when the tail gas treatment raw and other materials in the device need change, make this device be convenient for maintenance, reduce cost of maintenance, and use rare earth oxide Ce, because CeO2 not only has good oxygen storage capacity, but also can be used as a catalyst for buffering the change of the air-fuel ratio, thereby reducing the economic cost; the treated tail gas is discharged through the straight pipe type silencer, so that the noise of the motor vehicle can be reduced.

The utility model provides a pair of a device that is used for tail gas processing of making an uproar falls in motorcycle can convenient change the room of removing sulphur and remove the indoor raw materials of plumbous, is convenient for maintain, reduces cost of maintenance to desulfurization and deleading become feasible in practical application in making engine exhaust, still indirectly improve the purification efficiency and the increase of service time of triple effect catalyst converter, tail gas after the processing can reduce the noise of motor vehicle from the terminal straight tube formula silencer discharge of device.

Drawings

Fig. 1 is one of the structural schematic diagrams of the present invention.

Fig. 2 is a schematic view of a partial cross-sectional structure of fig. 1.

Fig. 3 is a schematic view of the structure of the dynamic flange of the present invention.

Fig. 4 is a schematic view of the connecting mechanism of the present invention.

Fig. 5 is a schematic illustration of the disassembly process of fig. 1.

Fig. 6 is a second schematic structural diagram of the present invention.

Fig. 7 is a schematic illustration of the disassembly process of fig. 6.

Fig. 8 is a third schematic structural diagram of the present invention.

Fig. 9 is a schematic illustration of the disassembly process of fig. 8.

Reference numbers in the figures: 1 is a lead removing chamber, 2 is a sulfur removing chamber, 3 is a catalytic chamber, 4 is a buffer chamber, 5 is a straight pipe type muffler, 6 is a frame fixing frame, 8 is a fixed flange disc a, 9 is a fixed flange disc b, 10 is a fixed flange disc c, 11 is a fixed flange disc d, 12 is a movable flange, 13 is a spanner ring disc, 14 is a connecting rod, 17 is a top spring, 18 is clinoptilolite, 19 is an activated carbon sulfur removing pipe, 20 is a three-way catalytic converter, 21 is a heat-insulating and shock-absorbing sealing gasket,

22 is a stainless steel shell, 23 is a movable flange, 24 is a flange table, 25 is a connecting rod, 27 is a sealing ring a, 28 is a pin shaft, and 29 is a bolt.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1

The engine of the motor vehicle can generate sulfur and lead to cause air pollution when working, the current tail gas treatment of the motor vehicle does not effectively treat the sulfur and lead pollution, the pollution of the sulfur and the lead cannot be eliminated essentially by adopting the three-way catalytic converter, and on the contrary, the accumulation of the sulfur and the lead can cause the periodic cleaning of the three-way catalytic converter. In fact, the raw material costs for adsorption and elimination of sulphur and lead contamination are not high, but the need to regularly change the raw material results in a slightly higher frequency of change. One important reason why solutions for eliminating such contaminants are not effective is the lack of effective technical support, i.e., the lack of inexpensive, feasible and convenient replacement means, and the lack of effective technical means without the necessity of enforcement measures.

In the prior art, the automobile exhaust emission adopts a three-way catalytic converter which is welded or connected together through a flange seal, the structure is not suitable for eliminating sulfur and lead in the exhaust, and raw materials consumed in the process of eliminating sulfur and lead need to be replaced, so the existing automobile exhaust emission structure needs to be improved.

The embodiment adopts an improved tail gas treatment device, and on the basis of a three-way catalytic converter, the elimination of sulfur and lead in the tail gas of the engine is simplified, and the raw material replacement is very simple, so that the desulfurization and the deleading in the tail gas of the engine are feasible in practical application. Since the replacement cost and the replacement man-hour are reduced, the total cost is not high, and the vehicle owner usually considers replacing the corresponding raw material during the maintenance so as to meet the requirement of a new standard for the detection and execution of the tail gas of the motor vehicle.

The utility model provides a device for motor vehicle exhaust treatment and noise reduction, as shown in fig. 1 and fig. 2, the device comprises a catalytic chamber 3 with a horizontal ring column structure and a triple-effect catalytic converter 20, the middle part of the catalytic chamber 3 is fixedly arranged on a fixed seat on a motor vehicle frame, the left end of the catalytic chamber 3 is sequentially and coaxially provided with a sulfur removing chamber 2 with a cone ring platform structure and a lead removing chamber 1 with a ring column structure, the right side of the catalytic chamber 3 is sequentially and coaxially provided with a buffer chamber 4 and a straight pipe type silencer 5, the left end of the lead removing chamber 1 is hermetically connected and fixed with an exhaust port of a motor vehicle engine through a metal joint, a fixed flange a8 protruding outwards in the radial direction is hermetically welded on the ring surface of the right end of the lead removing chamber 1 and the ring surface of the left end of the sulfur removing chamber 2, the fixed flange a8 protruding on the ring surface of the lead removing chamber 1 is uniformly provided with 4 bolt holes along the circumferential direction, the position of the fixed flange a8 at the left end of the desulphurization chamber 2, which corresponds to the bolt hole of the fixed flange a8 of the lead removal chamber 1, is provided with a bolt axially towards the left, the inner ring edge of the fixed flange a8 in the bolt is provided with an annular mounting groove along the circumference and a sealing ring, when the bolt on the fixed flange a8 of the desulphurization chamber 2 is inserted into the bolt hole of the fixed flange a8 of the lead removal chamber 1 and then pushes the desulphurization chamber 2 towards the left, the sealing ring on the fixed flange a8 of the desulphurization chamber 2 is extruded and deformed by the fixed flange a8 of the lead removal chamber 1, so that the lead removal chamber 1 and the desulphurization chamber 2 are in a connection and fixed state with external sealing and internal through.

Oblique zeolite 18 is filled in the lead removing chamber 1, the oblique zeolite 18 has good affinity to lead and is cheap and easy to obtain, and tail gas entering the lead removing chamber 1 through a metal joint can be subjected to lead removing treatment through the oblique zeolite, so that the tail gas passing through the lead removing chamber does not contain lead.

The diameter size of the ring surface at the left end of the desulfurization chamber 2 is smaller than that of the ring surface at the right end of the desulfurization chamber 2, a fixed flange b9 protruding out of the desulfurization chamber 2 in the radial direction is welded on the ring surface at the right end of the desulfurization chamber 2 in a sealing mode, 4 bolt holes are uniformly formed in the middle of a fixed flange b9 protruding out of the ring surface at the right end of the desulfurization chamber 2 in the circumferential direction, and fixed flange c10 protruding out of the catalytic chamber 3 in the radial direction is welded on the ring surfaces at the left end and the right end of the catalytic chamber 3 in a sealing mode.

As shown in fig. 1, 3, and 4, a pushing connection mechanism is disposed on a fixed flange c10 at the left end of the catalytic chamber 3, the pushing connection mechanism includes a movable flange 12 having a protruding ring platform 24 at the middle portion thereof in the axial direction and a wrench ring 13 slidably mounted on the left end of the catalytic chamber 3, the protruding ring platform 24 of the movable flange 12 is slidably mounted in the left end of the catalytic chamber 3 in a sealing manner and can slide left and right along the inner annular wall of the catalytic chamber 3, and a mounting groove is formed along the circumference of the circumferential side surface of the top end of the protruding ring platform 24 of the movable flange 12, and a sealing ring a27 and a sealing ring a27 radially protrude from the mounting groove are mounted in the mounting groove, when the protruding ring platform 24 of the movable flange 12 is slidably mounted in the catalytic chamber in a sealing manner, the sealing ring a27 on the protruding ring platform 24 is deformed by the extrusion of the protruding ring platform and the inner annular wall of the.

A plurality of connecting rods 25 penetrating through a fixed flange c10 at the left end of the catalytic chamber 3 are uniformly and axially arranged on the ring surface of the right end of the movable flange 23 at the tail end of the movable flange 24 of the movable flange 12 along the circumference, the other end of each connecting rod 25 is connected with a wrench ring 13 on the catalytic chamber 3, the connecting rods 25 can axially slide on the penetrating fixed flange, the length dimension of the connecting rod 25 on the movable flange 23 of the movable flange 12 is a, the height dimension of the movable flange 12 on the movable flange 24 is b, and a is less than b; the diameter of the outer ring of the fixed flange c10 at the left end of the catalytic chamber 6 is c, the diameter of the outer ring of the wrench ring disc 13 on the catalytic chamber 3 is d, wherein d is larger than c, the connecting rods between the movable flange 12 and the fixed flange c10 at the left end of the catalytic chamber 3 are sleeved with the top springs 17, and the top springs 17 can automatically push the movable flange 12 axially leftwards and rightwards due to the fact that the position of the catalytic chamber 3 is fixed, the convex ring platform 24 of the movable flange 12 can be controlled to slide rightwards in the catalytic chamber 3 by pushing and pulling the wrench ring disc 13, and therefore the distance between the movable flange 23 of the movable flange 12 and the fixed flange c10 at the left end of the catalytic chamber 3 can be controlled.

The left end face of the movable flange plate 23 of the movable flange 12 is provided with a bolt 29 axially towards the left at the position corresponding to the bolt hole on the fixed flange b9 at the right end of the desulphurization chamber 2, the inner ring edge of the end face of the movable flange plate 23 provided with the bolt is provided with an annular mounting groove along the circumference and is provided with a sealing ring, when the jacking spring 17 automatically pushes the movable flange 12 axially towards the left, the bolts on the movable flange plate can be respectively inserted into the corresponding bolt holes on the fixed flange b9 at the right end of the desulphurization chamber 2 and continue to push the movable flange plate 23 towards the left, the movable flange plate 23 is in close contact with the desulphurization chamber 2 and pushes the desulphurization chamber 2 to move towards the left, and finally the desulphurization chamber 1, the desulphurization chamber 2 and the catalytic chamber 3 are in a connection and fixed state with the inside communicated with the outside sealed, the bolts on the jacking flange a9 at the right end of the desulphurization chamber 2 and the bolts on the jacking and connecting mechanism are provided with external threads, and nuts are installed on the bolts and screwed after the desulphurization chamber 1, the desulphurization chamber, the connection strength of the lead chamber 1, the sulfur removal chamber 2 and the catalytic chamber 3 can be enhanced.

Therefore, when there is no obstacle on the left side of the movable flange 12, the top spring 17 will push the movable flange to the left to the limit position, that is, the position where the wrench ring disc contacts with the fixed flange disc c10 at the left end of the catalytic chamber, because the height dimension of the movable flange 12 flange 24 is greater than the length dimension of the connecting rod 25, the flange 24 of the movable flange 12 will not slide out of the catalytic chamber 3, and when the wrench ring disc 13 contacts with the fixed flange disc c10 at the left end of the catalytic chamber 3, because the outer ring diameter dimension of the wrench ring disc 13 is greater than the outer ring diameter dimension of the fixed flange disc c10 at the left end of the catalytic chamber 3, it is convenient to pull the wrench ring disc 13.

The activated carbon flow-removing pipe 19 is filled in the desulfurization chamber 2, the source of the activated carbon is wide, the activated carbon has good stability, the heat-insulating shock-absorbing sealing gasket 21 is hermetically sealed and installed at the right end of the three-way catalytic converter 20 in the catalytic chamber 3, the tail gas after lead removal and filtration in the lead-removing chamber 1 can enter the desulfurization chamber 2 and carry out secondary treatment on the tail gas, the activated carbon sulfur-removing pipe 19 in the desulfurization chamber 2 can carry out sulfur-removing treatment on the tail gas entering the desulfurization chamber 2, so that the tail gas after treatment in the desulfurization chamber 2 does not contain sulfur, and the tail gas after the two treatments enters the catalytic chamber 3 and is treated for the third time, because the tail gas entering the catalytic chamber 3 does not contain sulfur and lead, the exhaust gas at this time does not affect the efficiency of catalytic conversion by the three-way catalytic converter 20 in the catalyst chamber 3, and also does not permanently poison the catalyst of the three-way catalytic converter 20, thereby defeating the treatment effect; the three-way catalytic converter 20 in the catalyst chamber 3 converts harmful gases such as CO, HC and NOx in the exhaust gas into harmless carbon dioxide, water and nitrogen, and the rare earth oxide CeO2 is used as a catalyst in the three-way catalytic converter 20 because CeO2 has not only a good oxygen storage capacity but also can be used as a catalyst for buffering air-fuel ratio changes to reduce economic costs.

The buffer chamber on the right side of the catalytic chamber 3 is in a horizontal conical ring platform structure, the diameter size of the ring surface at the left end of the buffer chamber 4 is larger than that of the ring surface at the right end of the buffer chamber 4, a fixed flange c10 protruding out of the buffer chamber in the radial direction is welded on the ring surface at the left end of the buffer chamber 4 in a sealing manner, a fixed flange d11 protruding out of the buffer chamber in the radial direction is welded on the ring surface at the right end of the buffer chamber in the sealing manner, a fixed flange d11 protruding out of the straight pipe type silencer 5 is welded on the air inlet end of the straight pipe type silencer 5 in a sealing manner, mounting grooves are formed in the peripheries of the left end surface of the fixed flange c10 at the left end of the buffer chamber and the left end surface of the fixed flange d11 at the, and the fixed flange c10 at the left end of the buffer chamber 4 and the fixed flange c10 at the right end of the catalytic chamber are fixedly and hermetically connected together through bolts and nuts, and the fixed flange d11 at the right end of the buffer chamber 4 and the fixed flange d11 at the left end of the straight pipe type silencer 5 are fixedly and hermetically connected together through bolts and nuts.

The tail gas after three-way catalytic converter 20 in catalytic chamber 3 handles passes thermal-insulated shock attenuation sealed gasket 21 and gets into the surge chamber, thermal-insulated shock attenuation sealed gasket 21 can get into surge chamber 4 after carrying out preliminary speed reduction to tail gas, because the diameter size of the 4 left end anchor ring of surge chamber is greater than the diameter size of the 4 right-hand member anchor ring of surge chamber, so can carry out the secondary speed reduction to tail gas and handle, tail gas through the secondary speed reduction handle gets into in the straight tube muffler 5 and discharges through straight tube muffler 5, straight tube muffler 5 can effectually reduce the noise that motor vehicle emission tail gas formula sent.

The device of the embodiment is applied to the treatment work of motorcycle exhaust, as shown in fig. 1 and fig. 5, the device is firstly assembled, then the middle part of the catalytic chamber of the device of the embodiment is arranged on a frame fixing frame 6 of a motor vehicle, and then the lead removing chamber 1 of the device of the embodiment is hermetically connected with an exhaust port of the motor vehicle engine through a metal joint.

After the motor vehicle is started, the tail gas discharged from the engine enters the catalytic chamber 3 after being treated by the lead removing chamber 1 and the sulfur removing chamber 2 once, the tail gas treated by the catalytic chamber 3 passes through the buffer chamber 4 and is discharged from the straight pipe type muffler 5, as shown in figure 5, when raw materials in the lead removing chamber 1 and the sulfur removing chamber 2 in the device need to be replaced, firstly, nuts used for enhancing the fixing effect on bolts at two sides of the sulfur removing chamber 2 are all removed, then the wrench ring disc 13 is pulled rightwards, the wrench ring disc 13 drives the movable flange 12 to move rightwards, when the bolts on the pushing and connecting mechanism at the left end of the catalytic chamber are all moved out of the bolt holes of the fixed flange b at the right end of the desulfurization chamber, pulling the desulfurization chamber to the right, the bolts on the fixed flange a8 at the left end of the desulfurization chamber can be moved out of the bolt holes of the fixed flange a8 at the right end of the lead removing chamber 1, at the moment, the desulfurization chamber 2 is detached, and then the raw materials in the desulfurization chamber 2 and the lead removing chamber 1 can be replaced respectively.

Example 2

The difference between the embodiment 2 and the embodiment 1 is that one end of the sulfur removing chamber is hinged with a movable flange of a movable flange through a pin shaft.

As shown in FIG. 6, one end of the fixed flange b9 at the right end of the desulfurizing chamber 2 is hinged with one end of the movable flange 23 on the connecting mechanism at the left end of the catalytic chamber 3 through a pin shaft, and the length dimension of the pin shaft is larger than that of the bolt.

As shown in fig. 7, when the raw materials in the lead removing chamber and the sulfur removing chamber in the device of this embodiment need to be replaced, first all the nuts for enhancing the fixing effect on the bolts on the left side of the sulfur removing chamber 2 are removed, then the wrench ring disc 13 is pulled rightwards, the wrench ring disc 13 drives the movable flange 12 to move rightwards, the movable flange disc moves and simultaneously drives the sulfur removing chamber 2 to move rightwards, when the sulfur removing chamber 2 moves rightwards, the bolts on the left end fixed flange disc a8 of the sulfur removing chamber are all removed from the bolt holes on the right end fixed flange disc a8 of the lead removing chamber 1, then all the nuts for enhancing the fixing effect on the bolts on the right side of the sulfur removing chamber 2 are removed, then the sulfur removing chamber 2 is pushed leftwards, the bolts on the left end fixed flange disc a8 of the sulfur removing chamber 2 are all removed from the bolt holes on the right end fixed flange disc a8 of the lead removing chamber,

when the bolts on the pushing and connecting mechanism at the left end of the catalytic chamber are all moved out of the bolt holes of the fixed flange b at the right end of the sulfur removal chamber, the sulfur removal chamber is pulled rightwards, the bolts on the fixed flange a8 at the left end of the sulfur removal chamber are all moved out of the bolt holes of the fixed flange a8 at the right end of the lead removal chamber 1, at the moment, the sulfur removal chamber 2 loses fixed support and rotates around a pin shaft 28 hinged with a movable flange 12, so that the sulfur removal chamber 2 is separated from the device of the embodiment, then raw materials in the lead removal chamber 1 and the sulfur removal chamber 2 are respectively replaced, after the replacement is completed, a wrench ring disc is pulled to enable the pushing and connecting mechanism to contract inwards, then the sulfur removal chamber 2 is pushed to rotate around the pin shaft 28, the bolt holes on the fixed flange b9 at the right end of the sulfur removal chamber 2 are arranged on the bolts on the movable flange 23 of the pushing and connecting mechanism, then the wrench ring disc is loosened, a pushing spring on the pushing and connecting mechanism can automatically push the sulfur removal chamber, and the bolts on the fixed flange a8 at the left end of the desulphurization chamber 2 are inserted into the bolt holes on the fixed flange a8 of the lead removing chamber 1 and then continuously push the desulphurization chamber 2, finally the lead removing chamber, the desulphurization chamber and the catalysis chamber are in a connection and fixed state with external sealing and internal through, then nuts are installed on the bolts at the left side and the right side of the desulphurization chamber and are screwed, and the raw material replacement is completed at this moment.

In the device, one end of a fixed flange b9 at the right end of the desulfurization chamber 2 is hinged with one end of a movable flange 23 on a connecting mechanism at the left end of the catalytic chamber 3 through a pin shaft 28, so that the desulfurization chamber 2 can rotate around the pin shaft only during installation, the desulfurization chamber can be operated and rotated by one hand without being grabbed by two hands for installation, and the desulfurization chamber is convenient to install after raw materials are replaced.

Example 3

The difference between embodiment 3 and embodiment 2 is that a connecting mechanism is also mounted on the fixed flange a at the right end of the lead removing chamber.

As shown in fig. 8 and 9, a fixed flange a at the right end of the lead removing chamber is provided with a pushing connection mechanism, the pushing connection mechanism comprises a movable flange 12 with a convex ring table 24 at the middle part thereof in the axial direction and a wrench ring disc 13 slidably sleeved on the right end of the lead removing chamber 1, the convex ring table 24 of the movable flange 12 is hermetically and slidably sleeved in the left end of the lead removing chamber 1 and can slide left and right along the inner ring wall of the lead removing chamber 1, and a mounting groove is formed on the circumferential side surface of the top end of the convex ring table 24 of the movable flange 12 along the circumference, a sealing ring a27 is sleeved in the mounting groove and a sealing ring a27 protrudes radially from the mounting groove, when the convex ring table 24 of the movable flange 12 is hermetically and slidably sleeved in the lead removing chamber 1, the sealing ring a27 on the convex ring table 24 is deformed by the extrusion of the convex ring table and the inner ring wall of the lead removing chamber 1.

A plurality of connecting rods 25 penetrating through a fixed flange a8 at the right end of the lead removing chamber 1 are uniformly and axially arranged on the left ring surface of the movable flange plate 23 at the right end of the lead removing chamber 1 along the circumference, the other ends of the connecting rods 25 are connected with a wrench ring plate 13 on the lead removing chamber 1, the connecting rods 25 can axially slide on the penetrating fixed flange, the length dimension of the connecting rods 25 on the movable flange plate 23 on the lead removing chamber 1 is a, the height dimension of a flange platform 24 on the movable flange 12 on the lead removing chamber 1 is b, and a is less than b; the diameter of the outer ring of the fixed flange c10 at the left end of the catalytic chamber 6 is c, the diameter of the outer ring of the wrench ring disc 13 on the catalytic chamber 3 is d, wherein d is larger than c, the connecting rods between the movable flange 12 on the de-lead chamber 1 and the fixed flange a8 at the right end of the de-lead chamber 1 are sleeved with the ejection springs 17, and because the right end of the de-lead chamber 1 is fixedly connected with the engine of the motor vehicle through a metal joint, the position of the de-lead chamber 1 is fixed, the ejection springs 17 on the de-lead chamber 1 can automatically push the movable flange 12 axially rightwards, and the movable flange 23 of the movable flange 12 and the fixed flange c10 at the left end of the catalytic chamber 3 can be controlled by pulling the wrench ring disc 13 to slide leftwards in the de-lead chamber 1.

Bolt holes are formed in the ring surface of the right end of a movable flange plate 23 of a movable flange 12 on a lead removing chamber 1 and correspond to bolts on a fixed flange plate a8 at the left end of the sulfur removing chamber, when the sulfur removing chamber is installed, a spanner ring plate 13 on a catalytic chamber is firstly pushed, after the sulfur removing chamber 2 rotates around a pin shaft 28, the bolt holes on a fixed flange plate b9 at the right end of the sulfur removing chamber 2 are installed on the bolts on the movable flange plate 23 at the left end of the catalytic chamber pushing and connecting mechanism, then the pulled spanner ring plate 13 is loosened, a jacking spring 17 on the pushing and connecting mechanism at the left end of the catalytic chamber 3 automatically pushes the sulfur removing chamber leftwards through the movable flange plate 23, the bolts on the fixed flange plate a8 at the left end of the sulfur removing chamber 2 are all inserted into the corresponding bolt holes on the movable flange plate 23 of the pushing and connecting mechanism at the right end of the lead removing chamber 1 and continue to push the sulfur removing chamber 2, and finally the lead removing chamber, the sulfur removing chamber and the catalytic chamber are in a connection, at the moment, the pushing connecting mechanisms at the two ends of the sulfur removal chamber 2 have pushing force on the sulfur removal chamber 2, so that the lead removal chamber 1, the sulfur removal chamber 2 and the catalytic chamber 3 are connected more tightly, nuts are mounted on the bolts at the left side and the right side of the sulfur removal chamber 2, the nuts are screwed, and the sulfur removal chamber is mounted at the moment.

Claims (10)

1. A device for treating and reducing noise of motor vehicle tail gas comprises a catalytic chamber with a transverse annular columnar structure provided with a three-effect catalyst, and is characterized in that a sulfur removal chamber with a conical annular table structure and a lead removal chamber with an annular columnar structure are sequentially arranged at the left end of the catalytic chamber, fixed flanges are hermetically fixed on the right end of the lead removal chamber and the ring surfaces at the left end and the right end of the sulfur removal chamber and the catalytic chamber, a connecting mechanism is arranged on the fixed flange at the left end of the catalytic chamber and is hermetically fixed with the fixed flange at one end adjacent to the sulfur removal chamber through the connecting mechanism, the connecting mechanism comprises a movable flange with a convex ring table axially arranged in the middle and a wrench ring disc sleeved on the catalytic chamber in a sliding manner, the convex ring table of the movable flange is hermetically and slidably sleeved in the left end of the catalytic chamber and can slide left and right along the inner annular wall of the catalytic chamber, a plurality of support rods penetrating through the fixed flange at the left end of the catalytic chamber are axially arranged on the flange ring disc of the movable flange along, the other end of bracing piece all links together with the spanner dish on the catalysis room, the bracing piece all can be in the fixed flange that runs through on the axial slip, all the cover is equipped with the top spring and outwards pushes away the top flange on the connecting rod between movable flange and the fixed flange on the coupling mechanism, and the flange ring dish of movable flange is together sealed fixed with the fixed flange of sulphur removal room right-hand member, it has clinoptilolite to remove the indoor packing of plumbum, it has active carbon except that the flow tube to remove the indoor packing of sulphur.

2. The device for treating motor vehicle tail gas and reducing noise according to claim 1, wherein the left end of the lead removing chamber is fixedly connected with an exhaust port of a motor vehicle engine in a sealing way through a metal joint.

3. The device for treating the tail gas of the motor vehicle and reducing the noise according to claim 1 or 2, wherein a gas buffer chamber is fixedly connected to the right end of the catalytic chamber in a sealing manner, a straight pipe type silencer is fixedly connected to the other end of the gas buffer chamber in a sealing manner, and the lead removing chamber, the sulfur removing chamber, the catalytic chamber, the buffer chamber and the straight pipe type silencer are coaxially arranged.

4. The apparatus for treating motor vehicle exhaust gases and reducing noise according to claim 1, wherein the catalyst in the three-way catalyst is CeO 2.

5. The device for motor vehicle exhaust gas treatment and noise reduction according to claim 1, wherein the length dimension of the connecting rod is a, and the height dimension of the convex ring platform of the movable flange is b, wherein a < b.

6. The device for treating motor vehicle exhaust gas and reducing noise according to claim 1, wherein the coupling mechanism moving flange has a mounting groove circumferentially formed on a circumferential side surface of a top end of the protruding collar, the mounting groove being fitted with the seal ring therein and the seal ring radially protruding out of the mounting groove.

7. The device for treating motor vehicle exhaust gases and reducing noise according to claim 1, wherein the outer ring diameter of the fixed flange provided with the connecting mechanism is c, and the outer ring diameter of the wrench ring disk of the connecting mechanism is d, wherein d > c.

8. The device for treating the tail gas of the motor vehicle and reducing the noise according to claim 1 or 7, wherein the fixed ring disc at the right end of the lead removing chamber is provided with a connecting mechanism and is hermetically connected with one end adjacent to the sulfur removing chamber through the connecting mechanism.

9. The device for treating the tail gas of the motor vehicle and reducing the noise of the tail gas of the motor vehicle as claimed in claim 1, wherein one end of the movable flange on the connecting mechanism at the left end of the catalysis chamber is provided with a shaft hole and is hinged with the fixed flange at the left end of the catalysis chamber through a pin shaft.

10. The device for treating motor vehicle tail gas and reducing noise according to claim 1, wherein 4 supporting rods penetrating through the fixed ring disc are uniformly and axially arranged on the flange ring disc of the movable flange along the circumference.

Images