CN216198394U

CN216198394U - Waste gas energy recovery device and vehicle

Info

Publication number: CN216198394U
Application number: CN202121213670.3U
Authority: CN
Inventors: 石卜从; 程瑞涛
Original assignee: BAIC Motor Co Ltd
Current assignee: BAIC Motor Co Ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2022-04-05
Anticipated expiration: 2031-06-01

Abstract

The utility model relates to an exhaust gas energy recovery device and a vehicle. The engine (1) and the hot air chip (4) are connected through a hot air inlet pipe (2) and a hot air outlet pipe (5), the thermoelectric conversion device (8) is connected with the engine (1) through a forced cooling inlet pipe (6) and a forced cooling return pipe (7), the thermoelectric conversion device (8) is assembled on an engine exhaust pipe, the catalyst TWC (9) and the particle collector GPF (10) are assembled on an exhaust pipe (11), and the exhaust pipe (11) is connected with the engine (1). According to the waste gas energy recovery device, waste gas energy recovery is realized, the economy and the emission performance of the whole vehicle are improved, and the use perception performance of a user can be improved.

Description

Waste gas energy recovery device and vehicle

Technical Field

The utility model relates to an automobile, in particular to an automobile exhaust energy recovery device and an automobile.

Background

When an automobile runs, energy is supplied to the automobile through fuel oil, and tail gas can be generated after the fuel oil, so that on one hand, the energy of the automobile is consumed by the emission of the tail gas, and on the other hand, the environment is influenced by the emission of the tail gas.

In the prior art, a filter is usually installed at an automobile exhaust pipe to filter automobile exhaust.

However, the prior art can only filter the influence of the exhaust gas on the environment and reduce pollution, but does not treat the heat discharged by the exhaust gas, so that the energy loss of the automobile is large. Therefore, how to treat the energy generated by the automobile exhaust emission becomes a problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides an exhaust gas energy recovery device and a vehicle, which solve or partially solve the problem that the energy generated by automobile exhaust gas is not treated in the prior art.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

provided is an exhaust gas energy recovery device. The engine and the warm air chip are connected through a warm air inlet pipe and a warm air outlet pipe, the thermoelectric conversion device is connected with the engine through a forced cooling water inlet pipe and a forced cooling water return pipe, the thermoelectric conversion device is assembled on an engine exhaust pipe, the catalyst TWC and the particle collector GPF are assembled on the exhaust pipe, and the exhaust pipe is connected with the engine.

Furthermore, a warm water valve is arranged on the warm air inlet pipe.

Further, a cooling water valve is assembled on the forced cooling water inlet pipe.

Further, two surfaces of the thermoelectric conversion device are respectively a hot side and a cold side.

In addition, the hot end is connected with the outer surface of the exhaust pipe, and the cold end is connected with the forced cooling water channel.

Furthermore, the forced cooling water inlet pipe, the forced cooling water channel and the forced cooling water return pipe are connected to form a cooling circulation channel of the thermoelectric conversion device.

Furthermore, a warm air resistance wire is assembled inside the warm air chip.

Further, the catalyst TWC and the particle collector GPF are connected in series.

Furthermore, a GPF resistance wire is assembled on the collector GPF.

Furthermore, the exhaust pipe is wider at the position where the exhaust pipe is connected with the engine, and the bent pipe is narrower.

The vehicle comprises the waste gas energy recovery device, and the waste gas energy recovery device is arranged on the vehicle, so that the waste gas energy recovery of the vehicle is realized, the economy and the emission performance of the whole vehicle are improved, the use perception performance of a user is improved, and the product competitiveness is improved.

Drawings

FIG. 1 is a schematic structural diagram of an exhaust gas energy recovery device according to the present invention.

Fig. 2 is a schematic diagram of a thermoelectric conversion device according to the present invention.

Description of reference numerals:

an engine 1; a warm air inlet pipe; a warm water valve 3; a warm air core body 4; a warm air outlet pipe 5; forcibly cooling the water inlet pipe 6; a forced cooling water return pipe 7; a thermoelectric conversion device 8; catalyst TWC 9; particle complement GPF 10; an exhaust pipe 11;

a warm air water outlet 101; a warm air inlet 102; an engine water return port 103; an engine water outlet 104; a warm air resistance wire 401; a cooling water valve 601; forced cooling water channels 801; GPF resistance wire 1001;

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the embodiments of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.

It should be noted that directional terms such as "upper", "lower", "front", "rear", "left", "right", etc. in the embodiments are directions only referring to the drawings, and when the orientation of the element/component is changed, "upper" in the corresponding structure may be changed to "lower", so that the above description is not to be understood in an absolute sense for the sake of clarity of description of relative position, and the above description is not intended to limit the protection scope of the present disclosure. Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present disclosure.

The shapes and dimensions of the components in the drawings are not to reflect actual sizes and proportions, but are merely illustrative of the contents of the embodiments of the present disclosure. Furthermore, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

Fig. 1 is a schematic view showing the construction of an exhaust gas energy recovery apparatus according to the present invention, and fig. 2 is a schematic view showing the construction of a thermoelectric conversion apparatus and the application of a load according to the present invention.

The utility model relates to an exhaust gas energy recovery device, as shown in figure 1, an engine 1 and a warm air chip 4 are connected through a warm air inlet pipe 2 and a warm air outlet pipe 5, a thermoelectric conversion device 8 is connected with the engine 1 through a forced cooling inlet pipe 6 and a forced cooling return pipe 7, the thermoelectric conversion device 8 is assembled on an engine exhaust pipe, a catalyst TWC9 and a particle collector GPF10 are assembled on an exhaust pipe 11, the collector GPF10 is connected behind the catalyst TWC9, and the exhaust pipe 11 is connected with the engine 1.

The engine 1 and the warm air chip are connected with a warm air outlet pipe 5 through a warm air inlet pipe 2 to form a warm air circulation channel, wherein a warm water valve 3 is assembled on a warm air inlet pipe to control the on-off of the circulating water of the warm air circulation channel.

The warm air resistance wire 401 is installed inside the warm air core 4, and under the condition of being electrified, the warm air resistance wire 401 heats the warm air system.

The refrigeration water inlet pipe 6, the forced cooling water channel 801 and the forced cooling water return pipe 7 form a cooling circulation channel of the thermoelectric conversion device. The thermoelectric conversion device 8 has two surfaces, i.e., a hot end and a cold end, the hot end is connected to the outer surface of the exhaust pipe 11, and the cold end is connected to the forced cooling water channel 801.

The cooling water valve 601 is internally provided with a refrigerant, the cooling water valve 601 can control the on-off of the circulating water of the cooling circulation channel of the thermoelectric conversion device, and the refrigerant cools the cooling liquid flowing through the cooling water valve, so as to forcibly cool the cold end of the thermoelectric conversion device 8.

And a particle collector GPF resistance wire 1001 is integrally installed in the particle collector GPF10, and when the particle collector GPF resistance wire 1001 heats the particle collector GPF when the particle collector GPF resistance wire is electrified.

The catalyst TWC9 and the particle collector GPF10 are sequentially connected to the exhaust pipe 11, the catalyst TWC9 is arranged before the particle collector GPF10, regeneration can be triggered when carbon smoke particles in the GPF are collected to a certain degree, oil consumption is increased, and the catalyst TWC9 is arranged before the particle collector GPF10, so that the temperature of tail gas in the GPF can be controlled in real time, and the effect of GPF regeneration control can be achieved at any time.

In some embodiments of the present invention, as shown in fig. 2, fig. 2 is a schematic diagram of the thermoelectric conversion device configuration and load application in the present invention.

Referring to fig. 2, a thermoelectric conversion device 8 is integrated with a thermoelectric power generation energy unit, a voltage stabilizing circuit, an energy storage circuit, and a DC/DC circuit;

the thermoelectric power generation energy unit generates power according to the temperature difference between the hot end and the cold end of the thermoelectric conversion device 8, the fluctuation of the output energy of the thermoelectric power generation is large due to the working condition change of an engine and the temperature control mode change of the cold end, the generated voltage is stabilized by the voltage stabilizing circuit and then output to the energy storage circuit to store energy, the DC/DC circuit is a multi-voltage-end output interface circuit, and the voltage output end of the DC/DC circuit boosts/reduces the output voltage of the energy storage circuit according to the load power utilization information so as to match the load requirement.

In the embodiment of the utility model, the voltage is converted by the DC/DC circuit and output to the load warm air circuit and the GPF heating circuit, and if other load requirements exist, a new load requirement voltage path can be added by increasing the design of the output port of the DC/DC circuit.

The following briefly introduces the use of the exhaust gas energy recovery device in conjunction with the working process of the exhaust gas energy recovery device on the vehicle according to the embodiment of the present invention, as follows:

when the engine is in a warm-up state or other working condition states with lower water temperature, the warm water valve 3 is in a closed state, the engine coolant does not flow through the warm air circulation channel, the cooling water valve 601 is in a closed state, and the engine coolant does not flow through the thermoelectric conversion module cooling circulation channel; under this state, the cold junction of thermoelectric conversion device 8 relies on the external environment air flow to cool off, if trigger air conditioner warm braw signal this moment, makes the warm braw circuit circular telegram, heats warm braw resistance wire 401 and realizes the vehicle warm braw demand.

When the engine is in a large load condition or other working conditions with higher water temperature or higher load of a cooling system, the cooling water valve 601 is opened, the engine cooling liquid flows through the cooling circulation channel of the thermoelectric conversion module after being cooled by the cooling medium in the cooling water valve 601, and the cold end of the thermoelectric conversion module 8 is forcibly cooled, so that the temperature difference of the cold end and the hot end is increased, the energy recovery efficiency is improved, and the cooling liquid cooled by the refrigerant flows back to the engine through the forced cooling water return pipe 7 and the engine water return port 1-3, so that the load of the engine cooling system can be reduced, and the power consumption of a cooling fan can be reduced; if an air conditioner warm air signal is triggered under the working condition of the engine, the warm water valve 3 is opened, and engine cooling liquid flows through the warm air circulation channel to meet the vehicle warm air requirement.

When the engine is started in any state, if the GPF has a regeneration requirement, the GPF heating circuit is electrified, and the GPF resistance wire 1001 is heated to realize the temperature rise regeneration of the GPF; the device can realize the real-time regeneration of the GPF through a proper GPF regeneration control strategy, reduce the accumulation of particulate matters in the GPF and improve the fuel economy of the vehicle.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such modifications and alterations as fall within the scope of the utility model.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An exhaust gas energy recovery device, characterized in that: the engine (1) is connected with the hot air chip (4) through a hot air inlet pipe (2) and a hot air outlet pipe (5), the thermoelectric conversion device (8) is connected with the engine (1) through a forced cooling inlet pipe (6) and a forced cooling return pipe (7), the thermoelectric conversion device (8) is assembled on an exhaust pipe (11) of the engine, a catalyst TWC (9) and a particle collector GPF (10) are assembled on the exhaust pipe (11), the collector GPF (10) is connected behind the catalyst TWC (9), and the exhaust pipe (11) is connected with the engine (1).

2. The exhaust gas energy recovery device according to claim 1, wherein: and a warm water valve (3) is assembled on the warm air inlet pipe (2).

3. The exhaust gas energy recovery device according to claim 1, wherein: and a cooling water valve (601) is assembled on the forced cooling water inlet pipe.

4. The exhaust gas energy recovery device according to claim 1, wherein: and the two surfaces of the thermoelectric conversion device (8) are respectively a hot end and a cold end.

5. The exhaust gas energy recovery device according to claim 4, wherein: the hot end is connected with the outer surface of the exhaust pipe (11), and the cold end is connected with the forced cooling water channel (801).

6. The exhaust gas energy recovery device according to claim 4, wherein: the forced cooling water inlet pipe (6), the forced cooling water channel (801) and the forced cooling water return pipe (7) are connected to form a cooling circulation channel of the thermoelectric conversion device.

7. The exhaust gas energy recovery device according to claim 1, wherein: and a warm air resistance wire (401) is assembled inside the warm air chip (4).

8. The exhaust gas energy recovery device according to claim 1, wherein: the catalyst TWC (9) and the particle collector GPF (10) are connected in series.

9. The exhaust gas energy recovery device according to claim 1, wherein: and a GPF resistance wire (1001) is assembled on the particle collector GPF (10).

10. A vehicle characterized by comprising the exhaust energy recovery apparatus according to any one of claims 1 to 9.