Post-processing structure for enhancing heat insulation effect

Abstract

The utility model discloses a post-processing structure capable of enhancing heat insulation effect, which comprises a post-processing device body, a plurality of sensors and sensor mounting seats are arranged on the post-processing device body, an air inlet and an air outlet are further arranged at two ends of the post-processing device body, and the axes of the air inlet and the air outlet are perpendicular to the axis of the post-processing device body. Air inlet and outlet heat insulation cotton is arranged on the outer sides of the air inlet and the air outlet; the front end of the air inlet and outlet heat insulation cotton is provided with an outer turning face, and the outer portion of the air inlet and outlet heat insulation cotton is sleeved with a hat brim. The rear end of the hat brim is connected with the air inlet and outlet heat insulation cotton, and the front end of the hat brim is open, pressed on the outer turning surface and connected with the postprocessor body through rivets. The utility model has the advantages of reducing sundry accumulation, reducing sundry burning risk, improving heat insulation effect and the like.

Description

Technical Field

[0001] This utility model relates to the field of engine aftertreatment technology, and in particular to an aftertreatment structure that enhances heat insulation. Background Technology

[0002] Inside the combine harvester's engine compartment, the large amount of heat generated by the engine during operation is expelled through the exhaust system. The after-processor in the exhaust system serves as a channel for exhaust gas discharge and purifies the exhaust gases. Because the exhaust gases are very hot, the heat from the high-temperature airflow radiates through the after-processor's metal casing to surrounding components. To prevent overheating, traditional after-processors are usually installed at a certain distance from the vehicle body, or a heat shield is added. The heat shield is typically a metal structure that covers the after-processor.

[0003] The patent applicant previously filed Chinese patent application CN222457558U, disclosing an engine aftertreatment structure and a nozzle mounting structure. However, this Chinese patent application CN222457558U has shortcomings in heat source isolation sealing; for example, the contact surfaces between the air inlet / outlet and the heat insulation cylinder are not well sealed, causing hot air leakage. Therefore, this patent application CN222457558U is used to further improve the heat insulation structure and enhance the heat insulation effect.

[0004] The above background information is provided only to aid in understanding the concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0005] The main purpose of this utility model is to propose a post-treatment structure that reduces the accumulation of debris, lowers the risk of debris combustion, and improves the heat insulation effect.

[0006] Therefore, this utility model proposes a post-treatment structure to enhance the heat insulation effect.

[0007] Preferably, the present invention may also have the following technical features:

[0008] A post-processing structure for enhanced heat insulation includes a post-processor body. The post-processor body is equipped with several sensors and sensor mounting bases, and has an air inlet and an air outlet at both ends. The axes of the air inlet and the air outlet are perpendicular to the axis of the post-processor body. Inlet and outlet heat insulation cotton is provided on the outer side of both the air inlet and the air outlet. The front end of the inlet and outlet heat insulation cotton has an outward-turned surface, and a brim is provided on the outside of the inlet and outlet heat insulation cotton. The rear end of the brim is connected to the inlet and outlet heat insulation cotton, and the front end is open and pressed against the outward-turned surface, and is connected to the post-processor body by rivets.

[0009] Furthermore, the brim is made of metal.

[0010] Furthermore, the curvature of the side where the opening and the outward-facing surface meet is the same as the curvature of the post-processor body.

[0011] Furthermore, the air inlet and air outlet are arranged in parallel to each other and are on the same side of the post-processor body.

[0012] Furthermore, it also includes a sixth heat insulation cotton. The sensor is mounted on the post-processor body via a sensor mounting base. The sixth heat insulation cotton has a clearance hole in the middle and is installed between the sensor mounting base and the post-processor body.

[0013] Furthermore, the sixth heat insulation cotton extends around the sensor mounting base, and the sensor mounting base is fixed to the post-processor body by rivets.

[0014] Furthermore, it also includes clamps, which are used to secure the sixth thermal insulation cotton to the sensor's wiring harness.

[0015] The beneficial effects of this utility model compared with the prior art include: the brim is made of metal, with a smooth transition between its cylindrical and open sections; the surface of the metal brim is smooth, making it less prone to accumulating weeds and reducing the risk of ignition; and assembly is relatively easy. The heat insulation effect is significantly improved compared to Chinese patent application CN222457558U, especially with a maximum temperature reduction of over 20°C at the inlet / outlet insulation cotton and the narrow gaps in the after-processor body. Attached Figure Description

[0016] Figure 1 This is a top view of the present invention.

[0017] Figure 2 This is a perspective view of the present invention.

[0018] Figure 3 This is a schematic diagram of the installation of the brim and air inlet / outlet insulation cotton of this utility model.

[0019] Figure 4 This is a three-dimensional view of the brim of the hat in this utility model.

[0020] Figure 5 This is a three-dimensional view of the air inlet and outlet insulation cotton of this utility model. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to specific embodiments and the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.

[0022] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein the same reference numerals denote the same parts unless otherwise specifically stated.

[0023] like Figures 1-5 The illustrated post-processing structure for enhanced heat insulation includes a post-processor body 1. The post-processor body 1 is equipped with several sensors and sensor mounting bases 6. It also has air inlets 5 and air outlets 3 at both ends, with the axes of the air inlets 5 and air outlets 3 perpendicular to the central axis of the post-processor body 1. Inlet / outlet heat insulation cotton 4 is provided on the outer side of each air inlet 5 and air outlet 3, covering the exterior of the air inlets 5 and air outlets 3 and secured with rope or buckles. The front end of the inlet / outlet heat insulation cotton 4 has an outward-facing surface 41. The inlet and outlet heat insulation cotton 4 is covered with a brim 8. The rear end of the brim 8 is cylindrical and riveted to the front end of the inlet and outlet heat insulation cotton 4. The front end is open and presses against the outer surface 41 of the inlet and outlet heat insulation cotton 4. The brim is fixed to the back processor body by rivets around its perimeter, while pressing the outer surface 41 tightly against the surface of the back processor body 1 to improve the sealing and heat insulation effect.

[0024] Preferably, the brim 8 is made of metal, with a smooth transition between its cylindrical section and open section. The surface of the metal brim 8 is smooth, making it less prone to accumulating weeds, reducing the risk of accumulation and ignition, and making assembly easier.

[0025] The outward-facing surface 41 is pressed between the metal brim 8 and the post-processor body 1. The curvature of the side where the open opening and the outward-facing surface 41 meet is the same as the curvature of the post-processor, allowing the metal brim 8 to press the outward-facing surface 41 firmly onto the post-processor body 1, effectively preventing heat waves from radiating out from the gap between the outward-facing surface 41 and the post-processor body 1. The heat insulation effect of this invention is significantly improved compared to Chinese patent application CN222457558U. For example, the maximum temperature reduction at the seam between the air inlet / outlet insulation cotton 4 and the post-processor body 1 in this invention reaches over 20°C.

[0026] Preferably, the air inlet 5 and the air outlet 3 are arranged in parallel to each other and are on the same side of the post-processor body 1.

[0027] It also includes a sixth heat insulation cotton. The sensor 10 is mounted on the post-processor body 1 via a sensor mounting base 6. The sixth heat insulation cotton is installed between the sensor mounting base 6 and the post-processor body 1, and a clearance hole is provided in the middle of the sixth heat insulation cotton for the sensor 10 to pass through. Preferably, the sixth heat insulation cotton extends beyond the periphery of the sensor mounting base 6. The sensor mounting base is fixed to the post-processor body 1 by rivets, and the sensor mounting base 6 presses the sixth heat insulation cotton to reduce heat radiation from the gap between the sixth heat insulation cotton and the post-processor body 1. Preferably, it also includes a clamp to secure the sixth heat insulation cotton to the wiring harness of the sensor 10.

[0028] Specifically, the sensor 10 includes a differential pressure sensor, a temperature sensor, and a nitrogen and oxygen sensor.

[0029] Those skilled in the art will recognize that numerous variations are possible with respect to the above description, and the embodiments and figures are merely for describing one or more specific implementations.

[0030] Although exemplary embodiments of the present invention have been described and illustrated, those skilled in the art will understand that various changes and substitutions can be made thereto without departing from the spirit of the present invention. Furthermore, many modifications can be made to adapt specific situations to the doctrine of the present invention without departing from the central concept of the present invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents that fall within the scope of the present invention.

Claims

1. A post-processing structure for enhancing the heat insulation effect, comprising a post-processor body, a plurality of sensors and sensor mounting seats being arranged on the post-processor body, and an air inlet and an air outlet being arranged at two ends of the post-processor body, characterized in that: The axes of the air inlet and air outlet are perpendicular to the axis of the post-treatment device body; the air inlet and air outlet are each provided with an air inlet / outlet heat insulation cotton; the front end of the air inlet / outlet heat insulation cotton is provided with an everted surface, the outside of the air inlet / outlet heat insulation cotton is sleeved with a brim; the rear end of the brim is connected to the air inlet / outlet heat insulation cotton, the front end is pressed against the everted surface as an open mouth, and the brim is connected to the post-treatment device body through rivets.

2. A post-treatment structure for enhancing the thermal insulation effect according to claim 1, characterized in that: The brim is made of metal material.

3. A post-treatment structure for enhancing the thermal insulation effect according to claim 1, characterized in that: The curvature of the side where the open mouth and the everted surface are attached is the same as the curvature of the post-treatment device body.

4. A post-treatment structure for enhancing the thermal insulation effect according to claim 1, characterized in that: The air inlet and air outlet are arranged in parallel to each other and on the same side of the post-treatment device body.

5. A post-processed structure for enhancing thermal insulation according to claim 1, characterized in that: A sixth heat insulation cotton is further included, the sensor is assembled on the post-treatment device body through a sensor mounting seat, and the middle part of the sixth heat insulation cotton is provided with a clearance hole which is installed between the sensor mounting seat and the post-treatment device body.

6. A post-treatment structure for enhancing the thermal insulation effect according to claim 5, characterized in that: The periphery of the sixth heat insulation cotton extends beyond the periphery of the sensor mounting seat, and the sensor mounting seat is fixed on the post-treatment device body through rivets.

7. A post-treatment structure for enhancing the thermal insulation effect according to claim 5, characterized in that: A clamp is further included, and the sixth heat insulation cotton is tightened on the wire harness of the sensor through the clamp.

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