Heat recovery catalyst and automobile

Abstract

The utility model discloses a heat recovery catalyst and an automobile, the catalyst is characterized in that a carrier in the heat recovery catalyst carries a catalyst, a catalytic conversion reaction occurs when tail gas enters a reaction section, the temperature is higher than that of the tail gas exhausted by an engine, and the area is the highest temperature in an exhaust system; the heat exchanger is highest in heat exchange efficiency, a medium can be heated more quickly, and then a to-be-heated area is heated more quickly, a carrier in the heat recovery catalyst carries a catalyst, tail gas can be subjected to catalytic conversion reaction when entering a reaction section, the temperature of the tail gas is higher than that of tail gas exhausted by an engine, and the area is the highest in temperature in an exhaust system. The heat exchanger is arranged at the position, the heat exchange efficiency is the highest, a medium can be heated more quickly, and then the area to be heated is heated more quickly.

Description

Technical Field

[0001] The utility model belongs to the technical field of catalytic converters, and more specifically, relates to a heat recovery catalytic converter and an automobile. Background Art

[0002] The exhaust system of a hybrid vehicle generally discharges the exhaust gas directly into the atmosphere, and the heat contained therein is dissipated in vain. In some cold regions and cold seasons, more heat is required to ensure the normal operation of the motor and battery. Therefore, it is necessary to recover the heat in the exhaust gas. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a heat recovery catalytic converter to solve the problem that the existing exhaust gas is directly discharged into the atmosphere and the heat contained therein is dissipated in vain in view of the deficiencies in the prior art.

[0004] To achieve the above purpose, the utility model provides a heat recovery catalytic converter, including:

[0005] A reaction section, the reaction section includes a carrier, a heat exchanger and a housing sleeved in sequence.

[0006] Optionally, it further includes a heat exchange sleeve, the heat exchange sleeve is arranged in the area to be heated, and the heat exchange sleeve and the heat exchanger form a circulating structure through a circulating pump.

[0007] Optionally, conical intake ends and conical outlet ends are respectively arranged at both axial ends of the reaction section, forming a spindle-shaped structure.

[0008] Optionally, the heat exchanger includes:

[0009] At least one cavity, the cavity is annular, and the cavity is sleeved on the outer periphery of the carrier;

[0010] At least one water outlet pipe, one end of the water outlet pipe is connected to the cavity, and the other end of the water outlet pipe passes through the housing and is exposed;

[0011] At least one water inlet pipe, one end of the water inlet pipe is connected to the cavity, and the other end of the water inlet pipe passes through the housing and is exposed.

[0012] Optionally, a plurality of cavities are provided, and each cavity is arranged along the axial direction of the reaction section, and adjacent cavities are communicated with each other.

[0013] Optionally, the water inlet pipe and the water outlet pipe are respectively arranged at the radial two ends of the cavity.

[0014] Optionally, it further includes a bushing, the bushing is sleeved on one end of the carrier close to the intake end, and the outer periphery of the bushing is in interference fit with the housing.

[0015] Optionally, the carrier is a cordierite carrier and the bushing is a vermiculite bushing.

[0016] The present utility model also provides an automobile, comprising:

[0017] The heat recovery catalytic converter described above;

[0018] A heat exchange sleeve, which is arranged in the area to be heated, and the heat exchange sleeve and the heat exchanger form a circulation structure through a circulation pump.

[0019] Optionally, a plurality of heat exchange sleeves are provided, and each heat exchange sleeve is respectively arranged at different positions of the automobile.

[0020] The present utility model provides a heat recovery catalytic converter, and its beneficial effects are as follows:

[0021] In the heat recovery catalytic converter, the carrier bears the catalyst. When the tail gas passes through the reaction section, a catalytic conversion reaction will occur, and the temperature is higher than the tail gas discharged from the engine, which is the area with the highest temperature in the exhaust system. The heat exchanger is arranged here for heat exchange with the highest efficiency, which can heat the medium faster and then heat the area to be heated up faster.

[0022] Other features and advantages of the present utility model will be described in detail in the following specific implementation section. Description of the Drawings

[0023] By describing the exemplary embodiments of the present utility model in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present utility model will become more obvious. Among them, in the exemplary embodiments of the present utility model, the same reference numerals generally represent the same components.

[0024] Figure 1 Shows a schematic structural diagram of a heat recovery catalytic converter according to an embodiment of the present utility model.

[0025] Figure 2 Shows an exploded view of a heat recovery catalytic converter according to an embodiment of the present utility model.

[0026] Figure 3 Shows a perspective view of a heat recovery catalytic converter according to an embodiment of the present utility model.

[0027] Description of the Reference Numerals in the Drawings:

[0028] 1. Intake end; 2. Housing; 3. Heat exchanger; 4. Exhaust end; 5. Gasket; 6. Carrier;

[0029] 3.1. Inlet pipe; 3.2. Outlet pipe; 3.3. Cavity. Specific Embodiments

[0030] The preferred embodiments of the present utility model will be described in more detail below. Although the preferred embodiments of the present utility model are described below, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present utility model more thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art.

[0031] As Figures 1-3 shown, a heat recovery catalytic converter includes:

[0032] A reaction section, which includes a carrier 6, a heat exchanger 3, and a housing that are sleeved in sequence.

[0033] Specifically, the carrier 6 carries the catalyst. When the exhaust gas passes through the reaction section, a catalytic conversion reaction will occur, and the temperature is higher than the exhaust gas discharged from the engine. It is the area with the highest temperature in the exhaust system. The heat exchanger 3 is set here for heat exchange with the highest efficiency, which can heat the medium faster, and then heat the area to be heated faster.

[0034] Furthermore, the carrier 6 is columnar and is arranged at the axis center of the reaction section.

[0035] In this embodiment, it further includes a heat exchange sleeve. The heat exchange sleeve is arranged in the area to be heated, and the heat exchange sleeve and the heat exchanger 3 form a circulation structure through a circulation pump.

[0036] Specifically, a circulation loop is formed by the heat exchanger 3 and the heat exchange sleeve to transfer heat to the required location, such as for the insulation of the battery and the engine in winter.

[0037] In this embodiment, a conical intake end 1 and a conical outlet end 4 are respectively arranged at both axial ends of the reaction section, forming a spindle-shaped structure.

[0038] Specifically, the spindle-shaped structure increases the catalytic reaction area of the exhaust gas and also increases the heat exchange area, improving the heat exchange effect.

[0039] In this embodiment, the heat exchanger 3 includes:

[0040] At least one cavity 3.3, the cavity 3.3 is annular, and the cavity 3.3 is sleeved on the outer periphery of the carrier 6;

[0041] At least one water outlet pipe 3.2, one end of the water outlet pipe 3.2 is connected to the cavity 3.3, and the other end of the water outlet pipe 3.2 passes through the housing and is exposed;

[0042] At least one water inlet pipe 3.1, one end of the water inlet pipe 3.1 is connected to the cavity 3.3, and the other end of the water inlet pipe 3.1 passes through the housing and is exposed.

[0043] Specifically, the water inlet pipe 3.1 and the water outlet pipe 3.2 are connected to the circulation structure, and then the liquid medium in the circulation cavity 3.3 is used for heat transfer.

[0044] In this embodiment, a plurality of cavities 3.3 are provided, each cavity 3.3 is arranged along the axial direction of the reaction section, and adjacent cavities 3.3 are interconnected.

[0045] Specifically, the heat exchange area is increased by using multiple cavities 3.3.

[0046] Furthermore, the multiple cavities 3.3 form a bellows-like structure to adapt to thermal expansion and contraction changes.

[0047] Furthermore, adjacent cavities 3.3 are connected via connecting pipes.

[0048] In this embodiment, the water inlet pipe 3.1 and the water outlet pipe 3.2 are respectively arranged at two radial ends of the cavity 3.3.

[0049] Specifically, the contact area between the liquid medium and the cavity 3.3 is ensured to avoid low heat exchange efficiency in dead corners.

[0050] In this embodiment, a bushing is also included. The bushing is sleeved on one end of the carrier 6 close to the air inlet end 1, and the outer periphery of the bushing is interference fit with the outer shell.

[0051] Specifically, the bushing limits the movement of the carrier 6 in the housing to prevent thermal deformation from causing gaps and shaking to generate noise.

[0052] In this embodiment, the carrier 6 is a cordierite carrier, and the bushing is a vermiculite bushing.

[0053] Specifically, the carrier 6 is made of cordierite by sintering, can carry the catalyst and adapt to high temperature, and the liner 5 is made of vermiculite material by weaving and pressing, can adapt to temperature increase expansion to ensure the positioning of the carrier 6.

[0054] The utility model also provides a car, comprising:

[0055] The heat recovery catalyst described above;

[0056] The heat exchange jacket is arranged in the area to be heated, and the heat exchange jacket and the heat exchanger 3 form a circulation structure through a circulation pump.

[0057] Specifically, the heat recovery catalyst is used in conjunction with heat exchange sleeves installed in various places to transport the high temperature of the catalyst to the components and areas that need to be heated and kept warm.

[0058] In this embodiment, a plurality of heat exchange jackets are provided, and each heat exchange jacket is respectively arranged at a different position of the automobile.

[0059] Specifically, solenoid valves are respectively arranged on each heat exchange sleeve, which can be opened to add circulating heat exchange when needed, and the corresponding solenoid valve can be closed when not needed.

[0060] When the heat recovery catalytic converter of this embodiment is in use, taking the battery use in winter as an example:

[0061] Both the air inlet end 1 and the air outlet end 4 are made by stamping stainless steel plates. The housing 2 is made of stainless steel steel pipes or is made by rolling and welding stainless steel plates. The heat exchanger 3 is made by stamping and welding stainless steel plates and stainless steel pipes. The aperture reserved on the housing 2 is larger than the outer diameters of the water inlet pipe 3.1 and the water outlet pipe 3.2. The water inlet pipe 3.1 and the water outlet pipe 3.2 are welded to the housing 2 by plug welding. The cavity 3.3 is made by stamping and welding thin steel plates, and its inner diameter is equal to the outer diameter of the carrier 6.

[0062] A heat exchange sleeve is arranged at the battery. After the vehicle starts, with the exhaust gas discharged, the waste heat at the catalytic converter is heated to the heat exchanger 3 in the form of heat conduction + heat radiation, and then is circulated to the battery through the liquid medium to warm up and keep the battery warm, avoiding the battery from losing temperature and failing due to the vehicle's driving.

[0063] Disconnect the circulation when not in use to avoid overheating in the area to be heated.

[0064] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments.

Claims

1. A heat recovery catalyst, characterized in that: include: A reaction section, the reaction section comprising a carrier, a heat exchanger and a shell which are sequentially sleeved; The heat exchanger comprises: At least one cavity, the cavity is annular and is sleeved on the outer periphery of the carrier; at least one water outlet pipe, one end of which is connected to the cavity, and the other end of which passes through the shell and is exposed to the outside; At least one water inlet pipe, one end of which is connected to the cavity, and the other end of which passes through the shell and is exposed to the outside.

2. The heat recovery catalyst according to claim 1, characterized in that: It also includes a heat exchange jacket, which is arranged in the area to be heated, and the heat exchange jacket and the heat exchanger form a circulation structure through a circulation pump.

3. The heat recovery catalyst according to claim 1, characterized in that: A conical air inlet end and a conical air outlet end are respectively arranged at two axial ends of the reaction section to form a spindle-shaped structure.

4. The heat recovery catalyst according to claim 1, characterized in that: A plurality of cavities are provided, each of which is arranged along the axial direction of the reaction section, and adjacent cavities are interconnected.

5. The heat recovery catalyst according to claim 4, characterized in that: The water inlet pipe and the water outlet pipe are respectively arranged at two radial ends of the cavity.

6. The heat recovery catalyst according to claim 3, characterized in that: It also includes a bushing, which is sleeved on one end of the carrier close to the air inlet end, and the outer periphery of the bushing is interference fit with the shell.

7. The heat recovery catalyst according to claim 6, characterized in that: The carrier is a cordierite carrier, and the bushing is a vermiculite bushing.

8. A car, characterized in that: include: The heat recovery catalyst according to any one of claims 3 to 7; A heat exchange jacket is arranged in the area to be heated, and the heat exchange jacket and the heat exchanger form a circulation structure through a circulation pump.

9. The automobile according to claim 8, characterized in that: A plurality of heat exchange jackets are provided, and each of the heat exchange jackets is respectively arranged at a different position of the automobile.

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