Adjusting type tail gas heat recovery device

Abstract

The invention provides an adjustable tail gas heat recovery device which comprises a gas inlet flange plate, a gas inlet pipe section, an end cover, a gas collecting pipe, an exhaust pipe section, a vehicle body fixing flange and a rotary cylinder. The sleeve type structure collects tail gas, the heat conduction area is enlarged, the efficiency of the heating device is improved, the device is convenient to install, and maintenance of a vehicle is facilitated. Round through holes are formed in the gas inlet pipe section and the rotary cylinder respectively, when the rotary cylinder rotates, the overlapping area of the round through holes in the gas inlet pipe section and the round through holes in the rotary cylinder changes, and the opening degree of the tail gas heat recovery device is controlled to be adjusted by controlling rotation of the rotary cylinder. Heat recovery of tail gas of a special vehicle heating system can be achieved, the opening degree can be adjusted according to different use requirements, heat support is provided for components such as an oil tank needing to be heated under the low-temperature condition, and the energy utilization rate is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of special vehicle auxiliary systems, and in particular relates to a regulating exhaust gas heat recovery device. Background Art

[0002] At present, the auxiliary system heating devices of special vehicles are used to discharge high-temperature exhaust gas directly into the atmosphere through ordinary pipes. Not only do they need to install heat insulation devices to protect the components near the exhaust system, which is costly and difficult to maintain, but they also lose a lot of heat in the exhaust gas, and the energy cannot be effectively utilized. If the above heat can be effectively recycled and utilized, it will be of great significance to reduce vehicle energy consumption and improve energy utilization. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The present invention proposes an adjustable exhaust gas heat recovery device to solve the technical problem of how to provide heat to other components that need to be heated in a low-temperature environment.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention proposes an adjustable exhaust heat recovery device, which includes an intake flange, an intake pipe section, an end cover, a collecting pipe, an exhaust pipe section, a vehicle body fixing flange and a cyclone; wherein,

[0007] The air intake flange, the air intake pipe section, the two end covers, the air collecting pipe, the exhaust pipe section and the vehicle body fixed flange are welded together in sequence based on their respective axes; wherein the left end face of the air intake flange is welded to the right end face of the air intake pipe section along the circumference, the two end covers are respectively welded to the outer arc surfaces of the air intake pipe section and the exhaust pipe section through the inner arc surfaces, the right end face and the left end face of the air collecting pipe are respectively welded to the outer arc surfaces of the two end covers; the left end face of the exhaust pipe section is welded to the right end face of the vehicle body fixed flange; the air intake flange is used to be connected to the exhaust outlet of the heating device, and the vehicle body fixed flange is used to be fixed to the vehicle body through bolts to form a closed air path;

[0008] Two bosses are arranged axially on the right outer arc surface of the rotor; the right section of the rotor is inserted into the exhaust pipe section and the intake pipe section from the left side of the exhaust pipe section; the inner sides of the intake pipe section and the exhaust pipe section are respectively processed with circumferential grooves, which cooperate with the two bosses on the rotor, and the rotor can rotate on a fixed track along the circumferential grooves;

[0009] Circular through holes are processed on the intake pipe section and the rotor respectively. When the rotor rotates, the overlapping area of ​​the circular through holes on the intake pipe section and the circular through holes on the rotor changes. By controlling the rotation of the rotor, the opening of the exhaust heat recovery device can be controlled.

[0010] Furthermore, the left outer arc surface of the rotary drum is welded to the handle as a whole.

[0011] Furthermore, the left outer arc surface of the rotary drum is welded to the two handles as a whole.

[0012] Furthermore, the diameters of the circular through holes on the air inlet pipe section and the rotor are the same.

[0013] Furthermore, two circular through holes evenly distributed along the circumferential direction are respectively processed on the air inlet pipe section and the rotary drum.

[0014] Furthermore, the inner sides of the air intake pipe section and the exhaust pipe section are respectively processed with a 1 / 4 circumferential groove, and the rotary drum can rotate on a fixed track along the 1 / 4 circumferential groove.

[0015] (III) Beneficial effects

[0016] The present invention proposes an adjustable exhaust heat recovery device, including an intake flange, an intake pipe section, an end cover, a collecting pipe, an exhaust pipe section, a vehicle body fixing flange and a rotor. The sleeve-type structure collects the exhaust gas, expands the heat conduction area, and maximizes the efficiency of the heating device. The device is easy to install and convenient for vehicle maintenance. Circular through holes are processed on the intake pipe section and the rotor respectively. When the rotor rotates, the overlapping area of ​​the circular through holes on the intake pipe section and the circular through holes on the rotor changes. By controlling the rotation of the rotor, the opening of the exhaust heat recovery device can be adjusted, which can realize the heat recovery of the exhaust gas of the heating system of special vehicles. The opening can be adjusted according to different usage requirements to provide heat support for components that need to be heated under low temperature conditions such as fuel tanks, thereby improving energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded view of the structure of the regulating exhaust gas heat recovery device of the present invention;

[0018] Figure 2a It is the assembly welding structure diagram of the present invention; Figure 2b for Figure 2a A-direction view;

[0019] Figure 3 It is the overall structure diagram of the present invention;

[0020] Figure 4 It is a partial enlarged view of the present invention;

[0021] Figure 5 It is an exploded view of the local structure of the regulating exhaust gas heat recovery device of the present invention;

[0022] Figure 6 This is a schematic diagram of the fully open working condition of the adjustable tail gas heat recovery device of the present invention;

[0023] Figure 7 It is a schematic diagram of a half-open working condition of the regulating tail gas heat recovery device of the present invention;

[0024] Figure 8 It is a schematic diagram of the fully closed working condition of the adjustable exhaust gas heat recovery device of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0026] This embodiment provides a regulating exhaust gas heat recovery device, the overall structure of which is as follows: Figure 1 As shown, it mainly includes an air intake flange 1, an air intake pipe section 2, an end cover 3, an air collecting pipe 4, an exhaust pipe section 5, a vehicle body fixing flange 6, a rotor 7 and a handle 8.

[0027] The air intake flange 1, the air intake pipe section 2, the two end covers 3, the air collecting pipe 4, the exhaust pipe section 5 and the vehicle body fixing flange 6 are welded together in sequence based on their respective axes. The overall welded assembly structure is as follows: Figure 2a and 2b As shown. The left end face of the air intake flange 1 is circumferentially welded to the right end face of the air intake pipe section 2, and the two end covers 3 are respectively welded to the outer arc surfaces of the air intake pipe section 2 and the exhaust pipe section 5 through the inner arc surface, and the right and left end faces of the air collecting pipe 4 are respectively welded to the outer arc surfaces of the two end covers 3. The left end face of the exhaust pipe section 5 is welded to the right end face of the vehicle body fixing flange 6. The air intake flange 1 is used to connect to the exhaust outlet of the heating device, and the vehicle body fixing flange 6 is used to be fixed to the vehicle body through bolts to form a closed air path. The overall structure is as shown in FIG. Figure 3 shown.

[0028] The left outer arc surface of the rotary drum 7 is welded with two handles 8 and can rotate around the axis of the rotary drum 7. Two bosses are arranged axially on the right outer arc surface of the rotary drum 7. The right section of the rotary drum 7 is inserted into the exhaust pipe section 5 and the intake pipe section 2 from the left side of the exhaust pipe section 5.

[0029] The inner sides of the intake pipe section 2 and the exhaust pipe section 5 are respectively processed with a 1 / 4 circumferential groove, which cooperates with the two bosses on the rotary cylinder 7. Figure 4 As shown, the rotary drum 7 can rotate along a 1 / 4 circumferential groove on a fixed track. The local structure is as shown in Figure 5 shown.

[0030] The intake pipe section 2 and the cyclone 7 are respectively provided with two circular through holes evenly distributed along the circumferential direction, and the through holes have the same diameter. When the cyclone 7 rotates, the overlapping area of ​​the two circular through holes on the intake pipe section 2 and the two circular through holes on the cyclone 7 changes, and the air flow through the vents also changes accordingly, thereby achieving the purpose of controlling the opening adjustment of the exhaust gas heat recovery device by controlling the rotation of the cyclone 7.

[0031] The states of the adjustable tail gas heat recovery device of the present invention under three typical working conditions:

[0032] In full-open condition, Figure 6 As shown, the two circular through holes on the intake pipe section 2 are completely overlapped with the two circular through holes on the cyclone 7. Exhaust gas enters through the intake pipe section 2, a part of the exhaust gas is directly discharged to the outside of the vehicle through the inner side of the cyclone 7, and the other part of the exhaust gas enters the sleeve-type gas collecting cavity formed by the intake pipe section 2, the two end covers 3, the gas collecting pipe 4 and the exhaust pipe section 5 through the overlapped part of the vent holes on the intake pipe section 2 and the cyclone 7. The outer wall of the gas collecting pipe 4 can be equipped with heat dissipation components such as fins to heat the device that needs to be heated.

[0033] In the half-open condition, Figure 7 As shown, the two circular through holes on the intake pipe section 2 are partially overlapped with the two circular through holes on the cyclone 7. Most of the exhaust gas is directly discharged to the outside of the vehicle through the inner side of the cyclone 7, and the remaining exhaust gas enters the sleeve-type gas collecting cavity through the overlapped part of the vent holes on the intake pipe section 2 and the cyclone 7. At this time, the heating efficiency is less than that of the fully open condition.

[0034] In fully closed condition, if Figure 8 As shown, the two circular through holes on the intake pipe section 2 and the two circular through holes on the swirl 7 are completely non-overlapping. The exhaust gas is directly discharged to the outside of the vehicle through the intake pipe section 2 and the inner side of the swirl 7, and the high-temperature gas does not enter the sleeve-type gas collecting cavity. The cavity acts as a heat insulation layer to prevent the parts in contact with the outside of the gas collecting pipe 4 from overheating.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A regulating exhaust gas heat recovery device, characterized in that: The adjustable exhaust heat recovery device includes an intake flange, an intake pipe section, an end cover, an air collecting pipe, an exhaust pipe section, a vehicle body fixing flange and a rotary drum; wherein, The air intake flange, the air intake pipe section, the two end covers, the air collecting pipe, the exhaust pipe section and the vehicle body fixed flange are welded together in sequence based on their respective axes; wherein the left end face of the air intake flange is welded to the right end face of the air intake pipe section along the circumference, the two end covers are respectively welded to the outer arc surfaces of the air intake pipe section and the exhaust pipe section through the inner arc surfaces, the right end face and the left end face of the air collecting pipe are respectively welded to the outer arc surfaces of the two end covers; the left end face of the exhaust pipe section is welded to the right end face of the vehicle body fixed flange; the air intake flange is used to be connected to the exhaust outlet of the heating device, and the vehicle body fixed flange is used to be fixed to the vehicle body through bolts to form a closed air path; Two bosses are arranged axially on the right outer arc surface of the rotor; the right section of the rotor is inserted into the exhaust pipe section and the intake pipe section from the left side of the exhaust pipe section; the inner sides of the intake pipe section and the exhaust pipe section are respectively processed with 1 / 4 circumferential grooves, which cooperate with the two bosses on the rotor, and the rotor can rotate on a fixed track along the 1 / 4 circumferential grooves; Circular through holes are processed on the intake pipe section and the rotor respectively. When the rotor rotates, the overlapping area of ​​the circular through holes on the intake pipe section and the circular through holes on the rotor changes. By controlling the rotation of the rotor, the opening of the exhaust gas heat recovery device can be controlled.

2. The adjustable exhaust gas heat recovery device according to claim 1, characterized in that: The left outer arc surface of the rotary cylinder is welded to the handle as a whole.

3. The adjustable tail gas heat recovery device according to claim 2, characterized in that: The left outer arc surface of the rotary cylinder is welded to two handles as a whole.

4. The adjustable tail gas heat recovery device according to claim 1, characterized in that: The diameters of the circular through holes on the air inlet pipe section and the rotor are the same.

5. The adjustable tail gas heat recovery device according to claim 1, characterized in that: The air inlet pipe section and the rotary drum are respectively processed with two circular through holes evenly distributed along the circumferential direction.

6. The adjustable tail gas heat recovery device according to claim 1, characterized in that: The inner sides of the air intake pipe section and the exhaust pipe section are respectively processed with 1 / 4 circumferential grooves, and the rotary drum can rotate on a fixed track along the 1 / 4 circumferential grooves.

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