Novel heat insulation and heat dissipation structure for aftertreatment tail pipe of tractor
Through the casing structure, the Venturi effect is used to form forced convection heat exchange, which solves the problem of poor natural convection heat exchange capacity of the tractor exhaust tailpipe, and achieves more efficient heat dissipation and safety improvement.
Patent Information
- Application Number
- CN202422610003.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The natural convection heat exchange capacity of the exhaust tailpipe of the existing tractor is poor, resulting in high temperature and personal safety hazards.
Using a casing structure, the Venturi effect is used to form forced convection heat exchange between the inner and outer tubes, and air is pumped away through the bottom shield and vent holes to improve the heat dissipation effect.
It significantly improves heat exchange capacity, reduces exhaust temperature, and improves personal safety.
Smart Images
Figure CN223136245U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fertilizing devices, in particular to a novel heat insulation and heat dissipation structure for the rear treatment tail pipe of a tractor. Background Technique
[0002] As an essential configuration of a tractor, the exhaust tail pipe mainly guides the direction of the engine exhaust gas and directs the high-temperature gas to a high place. Since the engine of the tractor is placed in the front, the position of its tail pipe is generally beside the A-pillar of the cab, and the tail pipe can be touched at any time. Therefore, the temperature management of the tail pipe is one of the key points for protecting personal safety in the design of the tractor.
[0003] In the existing exhaust tail pipe structure used in tractors, generally, a mesh guard is added for heat insulation and heat dissipation of the exhaust tail pipe. The double-layer pipe is a heat insulation structure to protect personal safety and prevent scalding. The mesh on the second layer of the pipe is a heat dissipation structure, but it is natural convection heat transfer with poor heat transfer ability and a high temperature of the exhaust tail pipe. This application provides a structure that utilizes the Venturi effect, forms a negative pressure by the high-speed fluid at the outlet of the inner pipe of the exhaust pipe, forms an air flow between the inner pipe and the outer pipe, and changes the natural convection heat transfer to forced convection heat transfer, improving the heat dissipation ability of the tail pipe. Therefore, a novel heat insulation and heat dissipation structure for the rear treatment tail pipe of a tractor is proposed for the above problems. Content of the Utility Model
[0004] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background technique, the utility model proposes a novel heat insulation and heat dissipation structure for the rear treatment tail pipe of a tractor.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a novel heat insulation and heat dissipation structure for the rear treatment tail pipe of a tractor described in the utility model includes a sleeve, the sleeve is installed on the tractor, a bottom guard is fixedly installed between the sleeve and the tractor, a two-layer pipe is fixedly installed inside the sleeve, and a positioning rib plate is fixedly installed on the sleeve.
[0006] Preferably, both the sleeve and the two-layer pipe are bent at the end away from the bottom guard, and the end of the two-layer pipe is inside the sleeve.
[0007] Preferably, the two-layer pipe is designed to be hollow, and the bottom of the two-layer pipe is designed to be hollow and is connected to the inside of the two-layer pipe.
[0008] Preferably, the positioning rib plate is locked to the sleeve by screws.
[0009] The advantages of the utility model are as follows:
[0010] 1. The utility model installs the sleeve on the tractor through the bottom shield. When the tractor starts to emit smoke, taking advantage of the fact that the air flow velocity inside the sleeve is greater than that outside during the operation of the engine, a bottom shield is installed on the outer bottom plate of the sleeve, and ventilation holes are reserved at the bottom of the bottom shield. When there is air flow passing through the exhaust tail pipe during the operation of the engine, at the end of the tail pipe, due to the pressure, the air between the tail pipe and the sealing shield will be sucked away to achieve the purpose of heat dissipation. Through the above structure, the heat exchange capacity is greatly improved, and at the same time, the temperature of the sleeve during exhaust is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0012] Figure 1 It is a schematic structural view of the sleeve in the present utility model;
[0013] Figure 2 It is a schematic diagram of the air flow direction in the present utility model.
[0014] In the figure: 1, sleeve; 2, double-layer pipe; 3, positioning rib plate; 4, bottom shield. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0016] Please refer to Figure 1-2 As shown, a new type of after-treatment tail pipe heat insulation and heat dissipation structure for a tractor includes a sleeve 1, the sleeve 1 is installed on the tractor, a bottom shield 4 is fixedly installed between the sleeve 1 and the tractor, a double-layer pipe 2 is fixedly installed inside the sleeve 1, and a positioning rib plate 3 is fixedly installed on the sleeve 1.
[0017] Specifically, one ends of the sleeve 1 and the double-layer pipe 2 away from the bottom shield 4 are both bent, and the end of the double-layer pipe 2 is inside the sleeve 1. The double-layer pipe 2 is of a hollow design, the bottom of the double-layer pipe 2 is of a hollowed-out design and is connected to the inside of the double-layer pipe 2. The positioning rib plate 3 is locked to the sleeve 1 by screws.
[0018] During operation, the sleeve 1 is installed on the tractor through the bottom shield 4. When the tractor starts to emit smoke, taking advantage of the fact that the air flow velocity inside the sleeve 1 is greater than that outside during the operation of the engine, the bottom shield 4 is installed on the outer bottom plate part of the sleeve 1, and ventilation holes are reserved at the bottom of the bottom shield 4. When there is air flow passing through the exhaust tail pipe during the operation of the engine, at the end of the tail pipe, due to the pressure, the air between the tail pipe and the sealing shield will be sucked away to achieve the purpose of heat dissipation.
[0019] Through the above structure, the heat exchange capacity is greatly improved, and at the same time, the temperature of the sleeve 1 during exhaust is reduced.
[0020] Working principle: The sleeve 1 is installed on the tractor through the bottom shield 4. When the tractor starts to emit smoke, taking advantage of the fact that the air flow velocity inside the sleeve 1 is greater than that outside during the operation of the engine, the bottom shield 4 is installed on the outer bottom plate part of the sleeve 1, and ventilation holes are reserved at the bottom of the bottom shield 4. When there is air flow passing through the exhaust tail pipe during the operation of the engine, at the end of the tail pipe, due to the pressure, the air between the tail pipe and the sealing shield will be sucked away to achieve the purpose of heat dissipation.
[0021] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do 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.
[0022] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.
Claims
1. A novel after-treatment tailpipe heat insulation and heat dissipation structure for a tractor, characterized in that: It includes a sleeve (1) which is installed on a tractor. A bottom shield (4) is fixedly installed between the sleeve (1) and the tractor. A two-layer pipe (2) is fixedly installed inside the sleeve (1), and the sleeve (1) is fixedly installed with a positioning rib plate (3).
2. The novel aftertreatment tailpipe heat insulation and heat dissipation structure of a tractor according to claim 1, characterized in that: One end of the sleeve (1) and the two-layer pipe (2) away from the bottom shield (4) are both bent, and the end of the two-layer pipe (2) is inside the sleeve (1).
3. A novel after-treatment tail pipe heat insulation and heat dissipation structure for a tractor according to claim 1, characterized in that: The two-layer pipe (2) is designed to be hollow. The bottom of the two-layer pipe (2) is designed to be leaky and is connected to the inside of the two-layer pipe (2).
4. A novel after-treatment tailpipe heat insulation and heat dissipation structure for a tractor according to claim 1, characterized in that: The positioning rib plate (3) is locked to the sleeve (1) by screws.