Self-cooling automobile three-way catalyst

Abstract

The utility model discloses an automobile three-way catalyst capable of being automatically cooled, and relates to the technical field of three-way catalyst equipment. The device comprises a connecting chamber, a cooling assembly and a catalytic reaction cylinder, one end of the connecting chamber is fixedly connected with a tail gas inlet pipe, the interior of the tail gas inlet pipe is fixedly connected with a communicating pipe, and the communicating pipe is U-shaped. By arranging the cooling assembly, when the temperature of tail gas is too high, the temperature sensor is utilized to enable the controller to work, the first electric valve is closed, and the second electric valve and the control valve are opened, so that the overheated tail gas enters the cooling pipe, the cooling chamber is utilized for primary cooling, and then the temperature of the tail gas is cooled through the heat conduction effect of the cooling pipe; the ventilation pipe of the cooling chamber is communicated with an existing automobile air conditioner pipeline, a special cooling system does not need to be additionally arranged, entered cold air cools the cooling pipe and then is led into the cooling pipe through the one-way air outlet pipe, and the cooling performance can be effectively enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of three-way catalytic converter equipment, in particular to a three-way catalytic converter for automobiles which can cool itself. Background Art

[0002] Cars are currently the most important means of transportation. While bringing a lot of convenience to people, they are also the main source of energy consumption and pollutant emissions. The three-way catalytic converter is the most important external purification device installed in the automobile exhaust system. It can convert harmful gases such as carbon monoxide, hydrocarbons and nitrogen oxides emitted from automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction, thereby reducing the pollution of automobile exhaust to the air.

[0003] The three-way catalytic converter works at the optimal temperature, which can make the catalytic effect more ideal; if the temperature is too high, the aging of the catalyst will be accelerated and the catalytic effect will not be ideal. Therefore, the equipment needs to cool it down by itself when the exhaust temperature is too high. Utility Model Content

[0004] The utility model aims to provide a three-way catalytic converter for automobiles which can cool itself, so as to solve the problems in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] The utility model discloses a self-cooling automobile three-way catalytic converter, comprising a connecting chamber, a cooling assembly and a catalytic reaction cylinder, one end of the connecting chamber is fixedly connected with an exhaust gas inlet pipe, the interior of the exhaust gas inlet pipe is fixedly connected with a connecting pipe, the connecting pipe is "U"-shaped, the cooling assembly comprises a cooling pipe, the cooling pipe is composed of a plurality of groups of U-shaped pipes connected end to end, the air inlet end of the cooling pipe is fixedly connected with one end of the connecting pipe, and a second electric valve is installed at the connection, the peripheral side of the cooling pipe is fixedly connected with a cooling chamber, the interior of the cooling chamber is installed with a vent pipe, one end of the vent pipe is arranged on the outside of the connecting chamber and is connected with an automobile air-conditioning pipeline, the peripheral side of the vent pipe is installed with a control valve, and the control valve is arranged in the connecting chamber.

[0007] A one-way air outlet pipe is fixedly connected to the bottom end of the cooling chamber, and one end of the one-way air outlet pipe is communicated with the cooling pipe.

[0008] The other end of the connecting pipe is fixedly connected to a conventional through pipe, and a first electric valve is installed at the connection. The conventional through pipe is arranged in a connecting chamber, and the other end of the connecting chamber is fixedly connected to an exhaust gas outlet pipe. The outlet end of the conventional through pipe and the outlet end of the cooling pipe are both connected to the exhaust gas outlet pipe.

[0009] A temperature sensor is installed on one side of the exhaust gas inlet pipe, a controller is installed inside the connecting chamber, the temperature sensor is electrically connected to the controller, the first electric valve and the second electric valve are electrically connected to the controller respectively, the control valve is electrically connected to the controller, and the controller is electrically connected to the vehicle power supply.

[0010] One end of the tail gas outlet pipe is fixedly connected to a catalytic reaction cylinder, a three-way catalytic converter is installed inside the catalytic reaction cylinder, and one end of the catalytic reaction cylinder is fixedly connected to an exhaust pipe.

[0011] The utility model has the following beneficial effects:

[0012] The utility model provides a cooling component. When the exhaust gas temperature is too high, a temperature sensor is used to operate the controller to close the first electric valve, and open the second electric valve and the control valve to allow the overheated exhaust gas to enter the cooling pipe, and the cooling chamber is used for preliminary cooling. Then, the exhaust gas temperature is cooled by the heat conduction effect of the cooling pipe, thereby improving the catalytic efficiency and increasing the service life of the equipment. The ventilation pipe of the cooling chamber is connected with the existing automobile air-conditioning pipeline, and there is no need to additionally configure a special cooling system. After the incoming cold air cools the cooling pipe, it is passed into the cooling pipe through the one-way exhaust pipe, which can effectively enhance the cooling performance, make the cooling effect of the exhaust gas more obvious, and has a simple structure.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0017] 1. Exhaust gas inlet pipe; 11. Connecting chamber; 101. Connecting pipe; 102. Temperature sensor; 103. Controller; 104. First electric valve; 105. Conventional through pipe; 106. Exhaust gas outlet pipe; 2. Cooling assembly; 201. Second electric valve; 202. Ventilation pipe; 203. Cooling chamber; 204. One-way outlet pipe; 205. Cooling pipe; 3. Catalytic reaction cylinder; 301. Exhaust pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1 As shown, the utility model is a self-cooling automobile three-way catalytic converter, comprising a connecting chamber 11, a cooling assembly 2 and a catalytic reaction cylinder 3, one end of the connecting chamber 11 is fixedly connected to an exhaust gas inlet pipe 1, the interior of the exhaust gas inlet pipe 1 is fixedly connected to a connecting pipe 101, the connecting pipe 101 is "U"-shaped, the cooling assembly 2 comprises a cooling pipe 205, the cooling pipe 205 is composed of a plurality of groups of U-shaped pipes connected end to end, the air inlet end of the cooling pipe 205 is fixedly connected to one end of the connecting pipe 101, and a second electric valve 201 is installed at the connection, the peripheral side of the cooling pipe 205 is fixedly connected to a cooling chamber 203, the interior of the cooling chamber 203 is installed with a vent pipe 202, one end of the vent pipe 202 is arranged on the outside of the connecting chamber 11, and is connected to the automobile air-conditioning pipeline, the peripheral side of the vent pipe 202 is installed with a control valve, and the control valve is arranged in the connecting chamber 11.

[0022] A one-way air outlet pipe 204 is fixedly connected to the bottom end of the cooling chamber 203 , and one end of the one-way air outlet pipe 204 is connected to the cooling pipe 205 .

[0023] The other end of the connecting pipe 101 is fixedly connected to a conventional through pipe 105, and a first electric valve 104 is installed at the connection. The conventional through pipe 105 is arranged in the connecting chamber 11, and the other end of the connecting chamber 11 is fixedly connected to an exhaust gas outlet pipe 106. The outlet end of the conventional through pipe 105 and the outlet end of the cooling pipe 205 are both connected to the exhaust gas outlet pipe 106.

[0024] A temperature sensor 102 is installed on one side of the exhaust gas inlet pipe 1, and a controller 103 is installed inside the connecting chamber 11. The temperature sensor 102 is electrically connected to the controller 103, the first electric valve 104 and the second electric valve 201 are electrically connected to the controller 103 respectively, the control valve is electrically connected to the controller 103, and the controller 103 is electrically connected to the vehicle power supply.

[0025] One end of the tail gas outlet pipe 106 is fixedly connected to the catalytic reaction cylinder 3 , a three-way catalytic converter is installed inside the catalytic reaction cylinder 3 , and one end of the catalytic reaction cylinder 3 is fixedly connected to the exhaust pipe 301 .

[0026] It should be noted that, in actual use, when the exhaust gas temperature is too high, the temperature sensor 102 is used to operate the controller 103, the first electric valve 104 is closed, and the second electric valve 201 and the control valve are opened to allow the overheated exhaust gas to enter the cooling pipe 205. The ventilation pipe 202 of the cooling chamber 203 is connected to the existing automobile air-conditioning pipeline. There is no need to configure a special cooling system. The incoming cold air cools the cooling pipe 205 and then passes into the cooling pipe 205 through the one-way air outlet pipe 204. Through the heat conduction of the cooling pipe 205, the cooling and cooling performance can be effectively enhanced, and the cooling effect of the exhaust gas is more obvious, thereby improving the catalytic efficiency and increasing the service life of the equipment. When the exhaust gas temperature is normal, the controller 103 is operated to open the first electric valve 104, and close the second electric valve 201 and the control valve, so that the exhaust gas enters the catalytic reaction tube 3 from the conventional ventilation pipe 105 for reaction treatment.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A self-cooling automobile three-way catalytic converter, comprising a connecting chamber (11), a cooling assembly (2) and a catalytic reaction cylinder (3), characterized in that: One end of the connecting chamber (11) is fixedly connected to an exhaust gas inlet pipe (1), and a connecting pipe (101) is fixedly connected inside the exhaust gas inlet pipe (1), and the connecting pipe (101) is "U"-shaped. The cooling assembly (2) comprises a cooling pipe (205), and the cooling pipe (205) is composed of a plurality of groups of U-shaped pipes connected end to end. The air inlet end of the cooling pipe (205) is fixedly connected to one end of the connecting pipe (101), and a second electric valve (201) is installed at the connection point. The cooling chamber (203) is fixedly connected to the peripheral side of the cooling pipe (205), and a ventilation pipe (202) is installed inside the cooling chamber (203). One end of the ventilation pipe (202) is arranged outside the connecting chamber (11) and is connected to the automobile air conditioning pipeline. A control valve is installed on the peripheral side of the ventilation pipe (202), and the control valve is arranged in the connecting chamber (11).

2. The self-cooling automobile three-way catalytic converter according to claim 1, characterized in that: A one-way air outlet pipe (204) is fixedly connected to the bottom end of the cooling chamber (203), and one end of the one-way air outlet pipe (204) is in communication with the cooling pipe (205).

3. The self-cooling automobile three-way catalytic converter according to claim 2, characterized in that: The other end of the connecting pipe (101) is fixedly connected to a conventional through pipe (105), and a first electric valve (104) is installed at the connection point. The conventional through pipe (105) is arranged in the connecting chamber (11), and the other end of the connecting chamber (11) is fixedly connected to an exhaust gas outlet pipe (106). The outlet end of the conventional through pipe (105) and the outlet end of the cooling pipe (205) are both connected to the exhaust gas outlet pipe (106).

4. The self-cooling automobile three-way catalytic converter according to claim 3, characterized in that: A temperature sensor (102) is installed on one side of the exhaust gas inlet pipe (1), a controller (103) is installed inside the connecting chamber (11), the temperature sensor (102) is electrically connected to the controller (103), the first electric valve (104) and the second electric valve (201) are electrically connected to the controller (103), the control valve is electrically connected to the controller (103), and the controller (103) is electrically connected to a vehicle power supply.

5. The self-cooling automobile three-way catalytic converter according to claim 4, characterized in that: One end of the tail gas outlet pipe (106) is fixedly connected to a catalytic reaction cylinder (3), a three-way catalytic converter is installed inside the catalytic reaction cylinder (3), and one end of the catalytic reaction cylinder (3) is fixedly connected to an exhaust pipe (301).

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