Three-way catalytic purifier with heating function

Abstract

The utility model relates to the technical field of three-way catalytic purifiers, and discloses a three-way catalytic purifier with a heating function, which comprises a first shell, the inner wall of the first shell is fixedly connected with a catalyst carrier, the left side of the first shell is fixedly connected with a second shell, the upper side and the lower side of the second shell are respectively provided with a sliding hole, and the sliding holes are communicated with the first shell. A vibration support is arranged on the inner wall of the sliding hole in an attached mode. By means of the second shell, the sliding hole, the vibration support, the electric heating pipe, the first cylinder and the connecting ring, after a vibration motor on the vibration support is turned on, the electric heating pipe shakes up and down through cooperation of the vibration motor and a spiral spring, particulate matter adsorbed on the electric heating pipe is shaken off in a shaking mode, and then the particulate matter on the electric heating pipe is removed. Furthermore, particulate matters in the tail gas are not easily adsorbed on the electric heating pipe, so that the situation that the heating effect of the electric heating pipe on the tail gas is reduced due to the fact that more particulate matters are adsorbed on the electric heating pipe is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way catalytic purifiers, in particular to a three-way catalytic purifier with a heating function. Background Art

[0002] The three-way catalytic converter can convert harmful substances such as carbon monoxide, hydrocarbons and nitrogen oxides in the exhaust gas emitted by gasoline engines into harmless gases such as carbon dioxide, nitrogen and water vapor through chemical reactions.

[0003] At present, a three-way catalytic purifier with a heating function mainly consists of a shell, a catalyst carrier, a heater and a temperature sensor, wherein the temperature of the exhaust gas is monitored by the temperature sensor, and the exhaust gas with a lower temperature is heated by the heater. For example, a three-way catalytic purifier with a heating function is disclosed in Chinese patent announcement No. CN208347880U. However, since particulate matter in the exhaust gas will be adsorbed on the heater, after a period of use, the heating effect of the heater on the exhaust gas will often be reduced due to the adsorption of more particulate matter on the heater. At the same time, since the temperature sensor located inside the three-way catalytic purifier is more troublesome to disassemble and assemble, it is not convenient for maintenance personnel to repair the damaged temperature sensor. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: at present, the three-way catalytic purifier with a heating function mainly consists of a shell, a catalyst carrier, a heater and a temperature sensor, wherein the temperature of the exhaust gas is monitored by the temperature sensor, and the exhaust gas with a lower temperature is heated by the heater, but since the particulate matter in the exhaust gas will be adsorbed on the heater, after a period of use, the heating effect of the heater on the exhaust gas will often be reduced due to the large amount of particulate matter adsorbed on the heater. At the same time, since the temperature sensor located inside the three-way catalytic purifier is more troublesome to disassemble and assemble, it is not convenient for maintenance personnel to repair the damaged temperature sensor, and a three-way catalytic purifier with a heating function is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A three-way catalytic purifier with a heating function comprises a first shell, an inner wall of the first shell is fixedly connected to a catalyst carrier, a left side of the first shell is fixedly connected to a second shell, upper and lower sides of the second shell are provided with sliding holes, a vibration bracket is fitted on the inner wall of the sliding hole, a bottom of the vibration bracket is fixedly connected to the upper surface of the second shell, electric heating tubes are fixedly connected to the left and right sides of the inner wall of the vibration bracket, a first cylinder is fitted on the left side of the vibration bracket, and a connecting ring is fixedly connected to the surface of the first cylinder and the inner wall of the second shell.

[0007] Preferably, the vibration bracket includes a vertical plate, the inner wall of the sliding hole and the right side of the first cylinder are in contact with the surface of the vertical plate, a circular hole is opened inside the vertical plate, the front and rear ends of the electric heating tube are fixedly connected to the inner wall of the circular hole, the left side of the vertical plate is fixedly connected to a support block, the upper surface of the support block is fixedly connected to a vibration motor, the bottom of the support block is fixedly connected to a coil spring, and the bottom of the coil spring and the upper surface of the second shell are fixedly connected to a connecting block.

[0008] Preferably, the elastic force of the coil spring is greater than the sum of the gravity of the vertical plate, the electric heating tube, the support block and the vibration motor.

[0009] Preferably, the center of the circular hole is on the same horizontal line as the center of the first cylinder, and the diameter of the circular hole is smaller than the inner diameter of the first cylinder.

[0010] Preferably, a through hole is provided at the bottom of the second shell, a temperature sensor is fitted on the inner wall of the through hole, an arc plate is fixedly connected to the surface of the temperature sensor, the upper surface of the arc plate is in contact with the bottom of the second shell, a limiting bracket is fitted on the bottom of the arc plate, and the inner wall of the limiting bracket is fixedly connected to the surface of the second shell.

[0011] Preferably, the limiting bracket includes a bearing, the inner wall of the bearing is fixedly connected to the surface of the second shell, the surface of the bearing is fixedly connected to a second cylinder, the inner wall of the second cylinder and the surface of the second shell are both fixedly connected to a volute spring, the inner wall of the second cylinder is in contact with the bottom of the arc plate, a groove is provided on the right side of the second cylinder, and a strip block is fixedly connected to the bottom of the second cylinder.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model comprises a second shell, a sliding hole, a vibration bracket, an electric heating tube, a first cylinder and a connecting ring. When the vibration motor on the vibration bracket is turned on, the electric heating tube shakes up and down through the cooperation of the vibration motor and the coil spring, and the particles adsorbed on the electric heating tube are shaken off by the shaking, so that the particles in the exhaust gas are not easily adsorbed on the electric heating tube, thereby preventing the heating effect of the electric heating tube on the exhaust gas from being reduced due to a large number of particles adsorbed on the electric heating tube.

[0014] (2) The utility model provides a through hole, a temperature sensor, an arc plate and a limit bracket, wherein when the groove on the limit bracket is offset from the arc plate, the position of the groove can be kept unchanged by the elastic force of the spiral spring, and the temperature sensor is fixed in the second shell by the cooperation of the limit bracket and the arc plate. When the groove is aligned with the arc plate, the temperature sensor can be directly taken out of the second shell. Furthermore, by the cooperation of the through hole, the temperature sensor, the arc plate and the limit bracket, the temperature sensor and the second shell can be easily disassembled and assembled, thereby facilitating maintenance personnel to replace the damaged temperature sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Sectional view at AA;

[0017] Figure 3 for Figure 1 Sectional view at the middle BB;

[0018] Figure 4 It is a bottom view of the second housing in the utility model;

[0019] Figure 5 It is a left view of the vibration bracket in the utility model;

[0020] Figure 6 It is a right side view of the limiting bracket in the utility model;

[0021] Figure 7 for Figure 6 Sectional view at CC.

[0022] In the figure: 1. first shell; 2. catalyst carrier; 3. second shell; 4. sliding hole; 5. vibration bracket; 51. vertical plate; 52. circular hole; 53. support block; 54. vibration motor; 55. spiral spring; 56. connecting block; 6. electric heating tube; 7. first cylinder; 8. connecting ring; 9. through hole; 10. temperature sensor; 11. arc plate; 12. limit bracket; 121. bearing; 122. second cylinder; 123. volute spring; 124. groove; 125. strip block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Embodiment 1:

[0026] Reference Figure 1-5 A three-way catalytic purifier with a heating function comprises a first shell 1, a catalyst carrier 2 is fixedly connected to the inner wall of the first shell 1, a second shell 3 is fixedly connected to the left side of the first shell 1, sliding holes 4 are provided on the upper and lower sides of the second shell 3, a vibration bracket 5 is fitted on the inner wall of the sliding hole 4, the bottom of the vibration bracket 5 is fixedly connected to the upper surface of the second shell 3, an electric heating tube 6 is fixedly connected to the left and right sides of the inner wall of the vibration bracket 5, a first cylinder 7 is fitted on the left side of the vibration bracket 5, and a connecting ring 8 is fixedly connected to the surface of the first cylinder 7 and the inner wall of the second shell 3.

[0027] The vibration support 5 includes a vertical plate 51, the inner wall of the sliding hole 4 and the right side of the first cylinder 7 are in contact with the surface of the vertical plate 51, a circular hole 52 is opened inside the vertical plate 51, the center of the circular hole 52 is on the same horizontal line as the center of the first cylinder 7, the diameter of the circular hole 52 is smaller than the inner diameter of the first cylinder 7, and the exhaust gas can only enter the first shell 1 through the circular hole 52 through the cooperation of the connecting ring 8 and the first cylinder 7. The front and rear ends of the electric heating tube 6 are fixedly connected to the inner wall of the circular hole 52, and the left side of the vertical plate 51 is fixedly connected with a support block 53. A vibration motor 54 is fixedly connected to the upper surface of the support block 53, a coil spring 55 is fixedly connected to the bottom of the support block 53, a connecting block 56 is fixedly connected to the bottom of the coil spring 55 and the upper surface of the second shell 3, the elastic force of the coil spring 55 is greater than the sum of the gravity of the vertical plate 51, the electric heating tube 6, the support block 53 and the vibration motor 54, when the vibration motor 54 is turned on, the electric heating tube 6 shakes up and down through the cooperation of the vibration motor 54 and the coil spring 55, and the particles adsorbed on the electric heating tube 6 are shaken off by shaking.

[0028] Embodiment 2:

[0029] Reference Figure 1-7 A through hole 9 is provided at the bottom of the second shell 3, and a temperature sensor 10 is fitted on the inner wall of the through hole 9. The temperature of the exhaust gas entering the second shell 3 is measured by the temperature sensor 10. An arc plate 11 is fixedly connected to the surface of the temperature sensor 10. The upper surface of the arc plate 11 contacts the bottom of the second shell 3. A limiting bracket 12 is fitted on the bottom of the arc plate 11, and the inner wall of the limiting bracket 12 is fixedly connected to the surface of the second shell 3.

[0030] The limiting bracket 12 includes a bearing 121, the inner wall of the bearing 121 is fixedly connected to the surface of the second shell 3, the surface of the bearing 121 is fixedly connected with a second cylinder 122, the inner wall of the second cylinder 122 and the surface of the second shell 3 are fixedly connected with a volute spring 123, the inner wall of the second cylinder 122 contacts the bottom of the arc plate 11, a groove 124 is provided on the right side of the second cylinder 122, and a strip block 125 is fixedly connected to the bottom of the second cylinder 122. The strip block 125 makes it more convenient for the user to rotate the second cylinder 122. When the groove 124 is staggered with the arc plate 11, the position of the groove 124 can remain unchanged through the elastic force of the volute spring 123, and the temperature sensor 10 is fixed in the second shell 3 through the cooperation of the second cylinder 122 and the arc plate 11. When the groove 124 is aligned with the arc plate 11, the temperature sensor 10 can be directly taken out of the second shell 3.

[0031] In the utility model, when the user uses the three-way catalytic purifier, the three-way catalytic purifier is first fixed in the exhaust pipe, and the exhaust gas enters from the second shell 3 and is discharged from the first shell 1. When the temperature sensor 10 detects that the exhaust gas temperature is less than the set value, the electric heating tube 6 is turned on by the control module on the car, and the exhaust gas reaches a specified temperature before entering the first shell 1 through the electric heating tube 6. Then, the exhaust gas is purified by the catalyst on the catalyst carrier 2. When the temperature sensor 10 detects that the exhaust gas temperature is greater than the set value, the electric heating tube 6 is turned off by the control module on the car. At the same time, by turning on the vibration motor 54, the electric heating tube 6 is shaken up and down with the cooperation of the vibration motor 54 and the coil spring 55, and the particulate matter adsorbed on the electric heating tube 6 is shaken off by shaking, so that the particulate matter in the exhaust gas is not easily adsorbed on the electric heating tube 6.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A three-way catalytic converter with a heating function, comprising a first housing (1), characterized in that: The inner wall of the first shell (1) is fixedly connected to a catalyst carrier (2); the left side of the first shell (1) is fixedly connected to a second shell (3); the upper and lower sides of the second shell (3) are provided with sliding holes (4); the inner wall of the sliding hole (4) is fitted with a vibration bracket (5); the bottom of the vibration bracket (5) is fixedly connected to the upper surface of the second shell (3); the left and right sides of the inner wall of the vibration bracket (5) are fixedly connected to electric heating tubes (6); the left side of the vibration bracket (5) is fitted with a first cylinder (7); the surface of the first cylinder (7) and the inner wall of the second shell (3) are fixedly connected with a connecting ring (8).

2. The three-way catalytic converter with heating function according to claim 1, characterized in that: The vibration bracket (5) comprises a vertical plate (51), the inner wall of the sliding hole (4) and the right side of the first cylinder (7) are in contact with the surface of the vertical plate (51), a circular hole (52) is provided inside the vertical plate (51), the front and rear ends of the electric heating tube (6) are fixedly connected to the inner wall of the circular hole (52), the left side of the vertical plate (51) is fixedly connected to a support block (53), the upper surface of the support block (53) is fixedly connected to a vibration motor (54), the bottom of the support block (53) is fixedly connected to a coil spring (55), and the bottom of the coil spring (55) and the upper surface of the second shell (3) are fixedly connected to a connection block (56).

3. The three-way catalytic converter with heating function according to claim 2, characterized in that: The elastic force of the coil spring (55) is greater than the sum of the gravity of the vertical plate (51), the electric heating tube (6), the support block (53) and the vibration motor (54).

4. The three-way catalytic converter with heating function according to claim 2, characterized in that: The center of the circular hole (52) is on the same horizontal line as the center of the first cylinder (7), and the diameter of the circular hole (52) is smaller than the inner diameter of the first cylinder (7).

5. The three-way catalytic converter with heating function according to claim 1, characterized in that: A through hole (9) is provided at the bottom of the second shell (3); a temperature sensor (10) is fitted on the inner wall of the through hole (9); an arc plate (11) is fixedly connected to the surface of the temperature sensor (10); the upper surface of the arc plate (11) is in contact with the bottom of the second shell (3); a limiting bracket (12) is fitted on the bottom of the arc plate (11); and the inner wall of the limiting bracket (12) is fixedly connected to the surface of the second shell (3).

6. The three-way catalytic converter with heating function according to claim 5, characterized in that: The limiting bracket (12) comprises a bearing (121), the inner wall of the bearing (121) is fixedly connected to the surface of the second shell (3), the surface of the bearing (121) is fixedly connected to a second cylinder (122), the inner wall of the second cylinder (122) and the surface of the second shell (3) are both fixedly connected to a volute spring (123), the inner wall of the second cylinder (122) is in contact with the bottom of the arc plate (11), a groove (124) is provided on the right side of the second cylinder (122), and a strip block (125) is fixedly connected to the bottom of the second cylinder (122).

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