CN204663637U - A kind of device realizing the multi-functional utilization of exhaust gases of internal combustion engines - Google Patents

Abstract

The utility model discloses a device for realizing the multifunctional utilization of the tail gas of an internal combustion engine, which comprises a supercharger, a gas mixing pump and an exhaust pipe. The supercharger includes a coaxially arranged turbine and an impeller. One side is provided with a transmission mechanism linked with the turbine shaft, and the output shaft of the transmission mechanism is connected to a fan; the gas mixing pump is arranged on the other side of the supercharger, and the impeller is arranged inside the gas mixing pump ; The supercharger and the gas mixing pump are all provided with an exhaust gas inlet communicating with the exhaust pipe; the gas mixing pump is also provided with an air inlet communicating with the atmosphere and a mixed gas outlet communicating with the air inlet of the internal combustion engine . The utility model not only realizes multiple recycling purposes of the tail gas of the internal combustion engine, effectively saves resources, but also can make full use of the heat energy in the tail gas, and has obvious energy-saving effect.

Description

A device for realizing multifunctional utilization of exhaust gas of internal combustion engine

technical field

The utility model relates to a tail gas utilization device, in particular to a device for realizing multifunctional utilization of the tail gas of an internal combustion engine, and belongs to the technical field of energy-saving and environmental protection equipment.

Background technique

In recent decades, with the continuous consumption of global natural resources, the shortage of natural resources, especially oil and coal resources, has been triggered. Some oil-fueled internal combustion engines cause resource waste and environmental pollution problems because the oil is not fully burned during the combustion process. Therefore, various devices for improving the effective combustion of fuel and treating tail gas have emerged at the historic moment.

At present, the method to improve the effective combustion of fuel is to adopt multi-air and segmented injection, and the method to treat the exhaust gas of internal combustion engine is to use the three-way catalysis method, but these methods cannot effectively solve the problem of resource shortage and environmental pollution.

The reuse of exhaust gas from internal combustion engines is one of the effective ways to save resources and protect the environment. However, at present, only a part of exhaust gas from internal combustion engines has been cooled and re-transmitted to the intake pipe of internal combustion engines to improve fuel economy and reduce harmful gas emissions. Moreover, the reutilization of the tail gas of the internal combustion engine has a single purpose, and the heat in the tail gas has not been fully utilized.

Utility model content

In view of the above-mentioned problems existing in the prior art, the purpose of the utility model is to provide a device for realizing the multifunctional utilization of the exhaust gas of an internal combustion engine.

In order to achieve the above object, the utility model adopts the following technical solutions:

A device for realizing multifunctional utilization of exhaust gas from an internal combustion engine, comprising a supercharger, a gas mixing pump and an exhaust pipe, the supercharger includes a coaxially arranged turbine and an impeller, and one side of the supercharger is provided with a A shaft-linked transmission mechanism, the output shaft of the transmission mechanism is connected with a fan; the gas mixing pump is arranged on the other side of the supercharger, and the impeller is arranged inside the gas mixing pump; the supercharger Both the gas mixing pump and the gas mixing pump are provided with an exhaust gas inlet connected to the exhaust gas pipe; the gas mixing pump is also provided with an air inlet connected to the atmosphere and a mixed gas outlet connected to the air inlet of the internal combustion engine.

As a preferred solution, it also includes a heating pipe connected with the exhaust pipe.

As a preferred solution, proportional regulating valves are all provided at the tail gas inlets of the supercharger, the gas mixing pump and the heating pipe.

As a further preferred solution, the distance from the proportional regulating valve to the inlet of the exhaust pipe is 10-50 cm.

As a further preferred solution, the proportional regulating valve is an electric proportional regulating valve.

As an embodiment, the transmission mechanism includes two sets of coaxial gear transmission elements, one set of gear transmission elements is connected to the turbine shaft, and the output shaft of the other set of gear transmission elements is connected to the fan. Shaft connected.

As a further embodiment, the gear transmission member is two conical gears meshed with each other.

As a preferred solution, the number of blades of the turbine is 6-14, and the blades of the turbine form an included angle of 40-65° with the radial direction of the turbine.

As a preferred solution, the blades of the impeller are forward-curved and backward-curved, and the number of the blades is 8-13.

As a preferred solution, the ratio of the radius of the turbine to the radius of the impeller is 2:1˜5:3.

As a preferred solution, the gas mixing pump is in the shape of an ellipsoid, and the ratio of its major axis to its minor axis is 3:1˜5:4.

Compared with the prior art, the beneficial technical effect of the utility model lies in:

The device provided by the utility model for realizing the multifunctional utilization of the exhaust gas of the internal combustion engine can not only realize the function of partial circulation and reburning of the exhaust gas of the internal combustion engine, but also realize the function of cooling the fan driven by the exhaust gas of the internal combustion engine as a power source and realize the heating function; not only the exhaust gas of the internal combustion engine can be realized It can effectively save resources, and can make full use of the heat energy in the exhaust gas, which has obvious energy-saving effect. In addition, the utility model also has the advantages of simple structure, convenient installation and use, and has the value of popularization and application.

Description of drawings

Fig. 1 is a structural schematic diagram of a device for realizing multifunctional utilization of internal combustion engine exhaust provided by the utility model;

Fig. 2 is a schematic structural view of the impeller of the present invention.

The symbols in the figure indicate as follows:

1—turbocharger; 11—turbine; 12—impeller; 121—blade; 13—turbine shaft; 14, exhaust gas inlet;

2—gas mixing pump; 21—exhaust gas inlet; 22—air inlet; 23—mixed gas outlet;

3—exhaust pipe; 31a—first exhaust branch pipe; 31b—second exhaust branch pipe; 32a—first proportional regulating valve; 32b—second proportional regulating valve; 32c—third proportional regulating valve;

4—transmission mechanism; 41a/41b—gear transmission parts; 411/412—bevel gear;

5—fan; 6—heating pipe.

Detailed ways

Below in conjunction with accompanying drawing, carry out clear, complete description and discussion to the technical solution in the utility model embodiment, obviously, what describe here is only a part example of the utility model, not all example, based on the utility model in Embodiments, and all other embodiments obtained by persons of ordinary skill in the art without creative efforts, all belong to the protection scope of the present utility model.

Example

As shown in Fig. 1: a kind of device that this embodiment provides to realize the multifunctional utilization of internal combustion engine exhaust gas includes a turbocharger 1, a gas mixing pump 2 and an exhaust pipe 3, and the turbocharger 1 includes a coaxially arranged The turbine 11 and the impeller 12 are provided with a transmission mechanism 4 linked with the turbine shaft 13 on one side of the turbocharger 1, and the output shaft of the transmission mechanism 4 is connected with a fan 5; the gas mixing pump 2 is arranged on On the other side of the turbocharger 1, the impeller 12 is arranged inside the gas mixing pump 2; the turbocharger 1 is provided with an exhaust gas inlet 31 communicated with the exhaust pipe 3; the gas The mixing pump 2 is provided with an exhaust gas inlet 21 communicating with the exhaust pipe 3 , and the gas mixing pump 2 is also provided with an air inlet 22 communicating with the atmosphere and a mixed gas outlet 23 communicating with the intake port of the internal combustion engine.

The device also includes a heating pipe 6 connected to the exhaust pipe 3, and the heating pipe 6 is coiled back and forth and fixedly arranged at the bottom of the room, so as to improve the heating efficiency in a limited space.

The gas mixing pump 2 can be an ellipsoidal gas mixing pump with a ratio of major axis to minor axis of 3:1 to 5:4; the second exhaust branch pipe 31b installed at the exhaust gas inlet 21 of the gas mixing pump 2 One end of the gas mixture forms an angle of 60° to 120° with one end of the gas mixture pipe installed at the gas mixture outlet 23 .

Described tail gas pipe 3 comprises first tail gas branch pipe 31a and second tail gas branch pipe 31b, and the outlet of described first tail gas branch pipe 31a is connected with the tail gas inlet 14 of turbocharger 1; The outlet of described second tail gas branch pipe 31b is connected with gas The tail gas inlet 21 of the mixing pump 2 is connected; the outlet of the first tail gas branch pipe 31 a is also connected with the inlet of the heating pipe 6 .

The tail gas inlet of the turbocharger 1 is provided with a proportional regulating valve 32a, the tail gas inlet of the gas mixing pump 2 is provided with a proportional regulating valve 32b, and the tail gas inlet of the heating pipe 6 is provided with a proportional regulating valve 32c; The distances from the regulating valves 32a, 32b, 32c to the inlet of the exhaust pipe 3 are all 10-50 cm; the proportional regulating valves are preferably electric proportional regulating valves.

The transmission mechanism 4 includes two sets of coaxial gear transmission elements 41a/41b, wherein one set of gear transmission elements 41a is connected to the turbine shaft 13, and the connection between the turbine 11 and the turbine shaft 13 is a key connection or a membrane The output shaft of another group of gear transmission parts 41b is connected with one end of the shaft of the fan 5; the gear transmission parts 41a/41b are two conical gears 411, 412 meshed with each other. .

The number of blades of the turbine 11 may be 6-14, and the angle formed between the blades of the turbine 11 and the radial direction of the turbine 11 may be 40-65°.

As shown in FIG. 2 , the impeller 12 can be selected with blades 121 that are forward-curved and backward-curved, and the number of the blades 121 can be 8-13. The ratio of the radius of the turbine 11 to the radius of the impeller 12 is preferably 2:1˜5:3.

The working process of the device described in this embodiment to realize the multifunctional utilization of the exhaust gas of the internal combustion engine is as follows:

The exhaust port of the internal combustion engine is connected with the inlet of the exhaust pipe 3, and the mixed gas outlet of the gas mixing pump 2 is connected with the air inlet of the internal combustion engine;

The tail gas exhausted by the internal combustion engine enters the tail gas pipe 3 and is divided into two tail gas branches; by controlling the opening and closing of the first proportional regulating valve 32a, the second proportional regulating valve 32b and the third proportional regulating valve 32c and the size of the opening and closing ratio, the Adjust the flow of exhaust gas entering the turbocharger 1, the gas mixing pump 2 and the heating pipe 6; when the exhaust gas enters the turbocharger 1 from the first exhaust branch pipe 31a, it will push the turbine 11 of the turbocharger 1 to rotate; When 11 rotates, it not only drives the impeller 12 to move, but also drives the transmission mechanism 4 to move; when the transmission mechanism 4 moves, it will drive the fan 5 to rotate, thereby realizing the cooling function of the fan; Heating and heating up the room; when the tail gas enters the gas mixing pump 2 from the second tail gas branch pipe 31b, the mixed gas of the tail gas and air in the gas mixing pump 2 will be compressed and mixed under the action of the impeller 12, and the compressed mixed gas will be The mixed gas outlet of the gas mixing pump 2 enters the air intake of the internal combustion engine for combustion.

To sum up, it can be seen that the device for realizing the multifunctional utilization of the exhaust gas of the internal combustion engine provided by the utility model can not only realize the partial circulation and reburning utilization function of the exhaust gas of the internal combustion engine, but also realize the function of cooling the fan driven by the exhaust gas of the internal combustion engine as a power source and realize the heating function ; It not only realizes multiple recycling purposes of the exhaust gas of the internal combustion engine, effectively saves resources, but also can make full use of the heat energy in the exhaust gas, and has obvious energy-saving effect. In addition, the utility model also has the advantages of simple structure, convenient installation and use, and has the value of popularization and application.

Claims (10)

1. one kind realizes the device of the multi-functional utilization of exhaust gases of internal combustion engines, it is characterized in that: comprise pressurized machine, gas mixing pump and offgas duct, described pressurized machine comprises turbine and the impeller of coaxial setting, be provided with the driving mechanism be connected with turbine shaft in the side of described pressurized machine, the output shaft of this driving mechanism is connected with fan; Described gas mixing pump is arranged on the opposite side of described pressurized machine, and described impeller is arranged on the inside of gas mixing pump; Described pressurized machine and gas mixing pump are equipped with the gas inlet be connected with described offgas duct; Described gas mixing pump is also provided with the air inlet be communicated with air and the mixed gas outlet be connected with air-intake of combustion engine mouth.

2. device according to claim 1, is characterized in that: also comprise the heating pad pipe be connected with described offgas duct.

3. device according to claim 2, is characterized in that: be equipped with ratio adjusting valve at the gas inlet place of pressurized machine, gas mixing pump and heating pad pipe.

4. device according to claim 3, is characterized in that: described ratio adjusting valve is 10 ~ 50 centimetres to the distance of the ingress of described offgas duct.

5. the device according to claim 3 or 4, is characterized in that: described ratio adjusting valve is electric proportional-regulation valve.

6. device according to claim 1, it is characterized in that: described driving mechanism comprises two groups of gear driving members coaxially arranged, one group of gear driving member is wherein connected with turbine shaft, and the output shaft of another group gear driving member is wherein connected with the rotating shaft of described fan.

7. device according to claim 1, is characterized in that: the blade quantity of described turbine is 6 ~ 14, the blade of described turbine and the angle being formed radially 40 ~ 65 ° of turbine.

8. device according to claim 1, is characterized in that: the blade of described impeller is in the backward bending type that leans forward, and the quantity of this blade is 8 ~ 13.

9. device according to claim 1, is characterized in that: the ratio of the radius of described turbine and the radius of described impeller is 2:1 ~ 5:3.

10. device according to claim 1, is characterized in that: described gas mixing pump is elliposoidal, and the ratio of its major axis and minor axis is 3:1 ~ 5:4.