Adjusting type tail gas heat recovery device

Abstract

The utility model 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 utility model belongs to the technical field of special vehicle auxiliary system, and specifically relates to an adjustable exhaust heat recovery device. BACKGROUND

[0002] At present, the existing auxiliary system heating device of the special vehicle directly discharges high-temperature exhaust into the atmosphere through an ordinary pipeline, which not only needs to be provided with a heat insulation device to protect the components near the exhaust system, has high cost and poor maintainability, but also loses a large amount of heat in the exhaust, and energy cannot be effectively utilized. If the above heat can be effectively recycled, it has important significance for reducing the energy consumption of the vehicle and improving the energy utilization rate. CONTENT OF THE UTILITY MODEL

[0003] (I) Technical problem to be solved

[0004] The utility model provides an adjustable exhaust heat recovery device to solve the technical problem of how to provide heat for other components that need to be heated in a low-temperature environment.

[0005] (II) Technical scheme

[0006] In order to solve the above technical problem, the utility model provides an adjustable exhaust heat recovery device, which comprises an air inlet flange, an air inlet pipe section, an end cover, a gas collecting pipe, an exhaust pipe section, a vehicle body fixing flange and a rotating cylinder.

[0007] The air inlet flange, the air inlet pipe section, the two end covers, the gas collecting pipe, the exhaust pipe section and the vehicle body fixing flange are welded in sequence as a whole with their respective axes as the reference. The left end surface of the air inlet flange is circumferentially welded with the right end surface of the air inlet pipe section. The two end covers are welded with the outer arc surfaces of the air inlet pipe section and the exhaust pipe section through the inner arc surfaces. The right end surface of the exhaust pipe section is welded with the left end surface of the vehicle body fixing flange. The air inlet flange is used to be connected with the exhaust outlet of the heating device, and the vehicle body fixing flange is used to be fixed with the vehicle body through bolts to form a closed air path.

[0008] Two bosses are arranged on the right outer arc surface of the rotating cylinder in the axial direction. The right section of the rotating cylinder is inserted into the exhaust pipe section and the air inlet pipe section from the left side of the exhaust pipe section. The inner sides of the air inlet pipe section and the exhaust pipe section are respectively machined with circumferential grooves, which are matched with the two bosses on the rotating cylinder, so that the rotating cylinder can rotate in the fixed track along the circumferential grooves.

[0009] Circular through holes are respectively machined on the air inlet pipe section and the rotating cylinder. When the rotating cylinder rotates, the overlapping area of the circular through holes on the air inlet pipe section and the rotating cylinder changes. The opening of the exhaust heat recovery device is adjusted by controlling the rotation of the rotating cylinder.

[0010] Further, the left outer arc surface of the rotating cylinder is welded with the handle.

[0011] Further, the left outer arc surface of the rotating cylinder is welded with the handle.

[0012] Further, the circular through hole on the rotating cylinder is same in diameter with the air inlet pipe section.

[0013] Further, two circular through holes are respectively machined on the air inlet pipe section and the rotating cylinder.

[0014] Further, 1 / 4 circular groove is respectively machined on the inner side of the air inlet pipe section and the exhaust pipe section, and the rotating cylinder can rotate on the fixed track along the 1 / 4 circular groove.

[0015] (Three) beneficial effects

[0016] The utility model provides a kind of adjustable exhaust heat recovery device, including air inlet flange, air inlet pipe section, end cover, gas collector, exhaust pipe section, vehicle body fixed flange and rotating cylinder.Sleeve type structure is collected to exhaust gas, expand heat conduction area, realize the efficiency of heating device more greatly, the device is installed conveniently, it is convenient for the maintenance of vehicle.Air inlet pipe section and rotating cylinder are respectively machined with circular through hole, when rotating cylinder rotates, the coincidence area of circular through hole on air inlet pipe section and circular through hole on rotating cylinder changes, the opening degree of exhaust heat recovery device is adjusted by controlling the rotation of rotating cylinder, the heat recovery of special vehicle heating system exhaust gas can be realized, according to different use needs can be carried out opening degree adjustment, provide heat support for the component needing heating under low temperature condition such as oil tank, improve energy utilization. DRAWINGS

[0017] Figure 1 It is the assembly explosion drawing of the adjustable exhaust heat recovery device of the utility model;

[0018] Figure 2a It is the assembly welding structure drawing of the utility model; Figure 2b It is Figure 2a A view of the utility model;

[0019] Figure 3 It is the overall structure drawing of the utility model;

[0020] Figure 4 It is the local enlarged view of the utility model;

[0021] Figure 5 It is the local structure explosion drawing of the adjustable exhaust heat recovery device of the utility model;

[0022] Figure 6 It is the full opening working condition schematic drawing of the adjustable exhaust heat recovery device of the utility model.

[0023] Figure 7 The adjusting type tail gas heat recovery device is shown in the half open working condition diagram of the utility model.

[0024] Figure 8 The adjusting type tail gas heat recovery device is shown in the half open working condition diagram of the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, content and advantages of the utility model more clear, the specific implementation of the utility model is described in further detail below in combination with the drawings and examples.

[0026] The adjusting type tail gas heat recovery device is shown in the half open working condition diagram of the utility model. Figure 1 The adjusting type tail gas heat recovery device is shown in the half open working condition diagram of the utility model.

[0027] The adjusting type tail gas heat recovery device is shown in the half open working condition diagram of the utility model. Figure 2a 2b The adjusting type tail gas heat recovery device is shown in the half open working condition diagram of the utility model. Figure 3

[0028] The adjusting type tail gas heat recovery device is shown in the half open working condition diagram of the utility model.

[0029] The adjusting type tail gas heat recovery device is shown in the half open working condition diagram of the utility model. Figure 4 Figure 5 The adjusting type tail gas heat recovery device is shown in the half open working condition diagram of the utility model.

[0030] ​​​Two circular through holes are machined on the intake pipe section 2 and the swirl cylinder 7, which are evenly distributed along the circumference. The diameter of the through holes is the same. When the swirl cylinder 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 swirl cylinder 7 changes. The air flow through the vent also changes accordingly. Thus, the purpose of controlling the opening degree of the exhaust gas heat recovery device is achieved by controlling the rotation of the swirl cylinder 7.

[0031] The adjustable exhaust gas heat recovery device of this utility model has three typical operating conditions:

[0032] When operating at full capacity, such as Figure 6 As shown, the two circular through holes on the intake pipe section 2 and the two circular through holes on the swirl cylinder 7 are completely overlapped. Exhaust gas enters through the intake pipe section 2, part of the exhaust gas is directly discharged to the outside of the vehicle through the inside of the swirl cylinder 7, and the other part of the exhaust gas enters the sleeve-type air collection cavity formed by the intake pipe section 2, the two end caps 3, the air collection pipe 4 and the exhaust pipe section 5 through the overlapping part of the air collection pipe section 2 and the swirl cylinder 7. Heat dissipation components such as fins can be installed on the outer wall of the air collection pipe 4 to heat the devices that need to be heated.

[0033] In the half-operation condition, such as Figure 7 As shown, the two circular through holes on the intake pipe section 2 and the two circular through holes on the swirl cylinder 7 partially overlap. Most of the exhaust gas is directly discharged to the outside of the vehicle through the inside of the swirl cylinder 7, and the remaining exhaust gas enters the sleeve-type air collection chamber through the overlapping part of the vent holes on the intake pipe section 2 and the swirl cylinder 7. At this time, the heating efficiency is less than that under the fully open condition.

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

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A regulated exhaust heat recovery device, characterized by, The adjustable exhaust heat recovery device comprises an air inlet flange, an air inlet pipe section, an end cover, a gas collecting pipe, an exhaust pipe section, a vehicle body fixing flange and a rotary cylinder. The air inlet flange, the air inlet pipe section, two end covers, the gas collecting pipe, the exhaust pipe section and the vehicle body fixing flange are sequentially welded into an integrated body with their respective axes as the reference, wherein the left end surface of the air inlet flange is circumferentially welded with the right end surface of the air inlet pipe section, the two end covers are respectively welded with the outer arc surfaces of the air inlet pipe section and the exhaust pipe section through the inner arc surfaces, the right end surface and the left end surface of the gas collecting pipe are respectively welded with the outer arc surfaces of the two end covers, the left end surface of the exhaust pipe section is welded with the right end surface of the vehicle body fixing flange, the air inlet flange is used to be connected with the exhaust outlet of the warming device, and the vehicle body fixing flange is used to be fixed with the vehicle body through bolts to form a closed air path. Two bosses are arranged on the right outer arc surface of the rotary cylinder in the axial direction, the right section of the rotary cylinder is inserted into the exhaust pipe section and the air inlet pipe section from the left side of the exhaust pipe section, and the inner sides of the air inlet pipe section and the exhaust pipe section are respectively machined with 1 / 4 circumferential grooves matched with the two bosses on the rotary cylinder, so that the rotary cylinder can rotate in a fixed track along the 1 / 4 circumferential grooves. The air inlet pipe section and the rotary cylinder are respectively machined with circular through holes, the overlapping area of the circular through holes on the air inlet pipe section and the circular through holes on the rotary cylinder changes when the rotary cylinder rotates, and the opening adjustment of the exhaust heat recovery device is achieved by controlling the rotation of the rotary cylinder.

2. The regulated exhaust heat recovery device of claim 1, wherein, The left outer arc surface of the rotary cylinder is welded with a handle.

3. The regulated exhaust heat recovery device of claim 2, wherein, The left outer arc surface of the rotary cylinder is welded with two handles.

4. The regulated exhaust heat recovery device of claim 1, wherein, The diameters of the circular through holes on the air inlet pipe section and the rotary cylinder are the same.

5. The regulated exhaust heat recovery device of claim 1, wherein, The air inlet pipe section and the rotary cylinder are respectively machined with two circular through holes which are uniformly distributed in the circumferential direction.

6. The regulated exhaust heat recovery device of claim 1, wherein, The inner sides of the air inlet pipe section and the exhaust pipe section are respectively machined with 1 / 4 circumferential grooves, and the rotary cylinder can rotate in a fixed track along the 1 / 4 circumferential grooves.

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