Heating system utilizing tail gas waste heat and vehicle

Abstract

The utility model provides a heating system utilizing tail gas waste heat and a vehicle, relates to the field of tail gas waste heat utilization, and adopts the technical scheme that the heating system comprises a gas inlet pipe and further comprises a heating chamber which is arranged at the bottom or the side part of a container needing to be heated of the vehicle; the coverage area of the heating chamber is the same as the area of the bottom or the side part of a container to be heated, and the heating chamber is communicated with an exhaust pipe I; the gas inlet end of the three-way pipe is communicated with the gas inlet pipe, the first gas outlet end of the three-way pipe is communicated with the heating cavity, and the second gas outlet end of the three-way pipe is communicated with a tail gas pipe; and the conversion assembly comprises a blade and a driving assembly, the blade is movably arranged at the first air outlet end of the three-way pipe, and the blade can block the first air outlet end. The heat exchange area of the heating system and the to-be-heated container of the vehicle can be increased, the heating area is enlarged, meanwhile, the exhaust back pressure of an engine cannot be increased, and sufficient combustion of fuel oil is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to tail gas waste heat utilization field especially, it relates to a kind of heating system and vehicle using tail gas waste heat. BACKGROUND

[0002] After automotive fuel burns in engine piston cavity, the heat generated by its combustion is converted into different forms of energy, part of which is converted into useful work as the driving force of the car to drive the vehicle to run, another part is transferred to cooling device through engine wall, taken away by coolant and lubricating oil etc., dissipated in air, and finally part of the heat is discharged in the form of exhaust gas generated by automobile engine along with the gas produced by combustion, this part of heat is discharged to the environment, which not only causes environmental pollution and greenhouse effect, but also causes waste of resources;Automobile exhaust waste heat utilization is to convert the waste heat in the discharged automobile exhaust into useful heat energy through appropriate heat exchange device.

[0003] In the prior art, the Chinese utility model patent with patent application publication number CN 203819847 U discloses a compression type garbage truck tail gas heating device, which comprises a three-way valve, a tail gas pipe and a U-shaped heating pipeline, the two ends of the heating pipeline are open, the heating pipeline is composed of a heating pipe, an air pipe and two tail pipes, the heating pipe is fixed on the bottom plate of the compression type garbage truck compartment, the air pipe is vertically welded on one side of the heating pipe close to the tail gas pipe, the two tail pipes are vertically welded on the two open ends of the heating pipe, three holes are opened on the compartment bottom plate, the air pipe and the two tail pipes just pass through the three holes to extend out from the compartment bottom plate, and the air pipe and the tail gas pipe are connected through the three-way valve;When heating, the tail gas enters the heating pipeline through the air pipe, and heat exchange is completed during the process of flowing through the heating pipeline, and finally discharged through the tail pipes at both ends.

[0004] In the above technical solution, the heating pipeline is a U-shaped structure around the vehicle bottom, on the one hand, only the local position of the vehicle bottom can be heated, and the heating effect is not good, on the other hand, the U-shaped structure makes the heating pipeline long and bent, causing large engine exhaust back pressure and insufficient fuel combustion. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problem of low tail gas waste heat utilization rate in the prior art, the utility model provides a heating system and vehicle using tail gas waste heat, which can increase the heat exchange area of the heating system and the vehicle to be heated container, expand the heating area, and at the same time, without increasing the engine exhaust back pressure, to ensure the full combustion of fuel.

[0006] The utility model discloses a heating system utilizing tail gas waste heat, which is provided to solve the above technical problems, comprising an air inlet pipe, further comprising: a heating chamber, the heating chamber is arranged at the bottom or side of a container to be heated in a vehicle, the covering area of the heating chamber is the same as the area of the bottom or side of the container to be heated, and the heating chamber is communicated with an exhaust pipe I; a tee pipe, the air inlet end of the tee pipe is communicated with the air inlet pipe, the air outlet end I of the tee pipe is communicated with the heating chamber, and the air outlet end II of the tee pipe is communicated with a tail gas pipe; a conversion assembly, the conversion assembly comprises a vane and a driving assembly, the vane is movably arranged at the air outlet end I of the tee pipe, and the vane can block the air outlet end I.

[0007] The utility model discloses a heating chamber for heat exchange with the container to be heated, which can increase the heating area, improve the heat exchange efficiency, expand the heating area, and ensure the full combustion of fuel.

[0008] Further, one end of the heating chamber close to the engine is provided with a gas guide pipe communicated with the air outlet end I.

[0009] The utility model discloses a gas guide pipe arranged close to the engine, which can shorten the pipeline length and reduce the heat loss during the flow of tail gas.

[0010] Further, the heating chamber is further communicated with a heating pipe capable of extending into the container to be heated, and the heating pipe is communicated with an exhaust pipe II.

[0011] The utility model discloses a heating pipe arranged to heat the inside of the container to be heated, which can improve the heating speed.

[0012] Further, a plurality of radial heat dissipation fins are arranged on the heating pipe along the axial direction.

[0013] The utility model discloses a heat dissipation fin arranged to further increase the heat exchange area and further improve the heating speed.

[0014] Further, a through slot is horizontally arranged on the tee pipe and communicated with the air outlet end I, the vane is movably arranged in the through slot, one end of the vane is connected with the driving assembly, and the driving assembly is arranged on the tee pipe.

[0015] Further, a sealing ring is embedded on the groove wall of the through slot.

[0016] The utility model discloses a sealing ring arranged to reduce the leakage of tail gas and reduce the heat loss.

[0017] Further, the driving assembly comprises a cylinder and a base connected with each other, the base is arranged on the tee pipe, and a piston rod of the cylinder is connected with the blade.

[0018] Further, the driving assembly comprises an electric push rod and a base connected with each other, the base is arranged on the tee pipe, and the electric push rod is connected with the blade.

[0019] The electric push rod can stop the blade at any position, and the amount of exhaust gas entering the heating chamber can be adjusted according to requirements.

[0020] Further, the back pressure sensor is arranged on the air inlet pipe, and the temperature sensor is arranged in the container to be heated.

[0021] The back pressure sensor can sense the exhaust back pressure of the engine, the exhaust outlet one can be closed when the back pressure increases to a set value, the engine working condition is ensured, in addition, the temperature sensor can sense the temperature in the container to be heated, and heating can be performed when necessary.

[0022] In the second aspect, the utility model also provides a vehicle, including water tank, controller, engine and muffler, the muffler with the engine intercommunication, still include above-mentioned utilize exhaust waste heat's heating system, the air inlet pipe with the muffler intercommunication, the heating chamber sets up in the water tank bottom and with the water tank is integrated design, back pressure sensor, temperature sensor and electric push rod all with controller electricity is connected.

[0023] From the above technical scheme, the utility model has the following advantages:

[0024] The utility model provides a kind of heating system and vehicle using tail gas waste heat, heat exchange is carried out to heating container by heating chamber, on the one hand, compared with pipeline, the area of heating exchange is increased, exchange efficiency is improved, heating area is enlarged, on the other hand, heating chamber volume is larger, will not be larger to increase engine exhaust back pressure, guarantee fuel combustion fully;By being arranged in the position close to engine, the length of pipeline can be shortened, and heat loss in the process of exhaust gas flow is reduced;By being arranged heating pipe, the inside of heating container can be heated, and heating speed is improved;By being arranged fin, heat exchange area is further increased, and heating speed is further improved;By being arranged sealing ring, exhaust gas leakage can be reduced, and heat loss is reduced;By being arranged electric push rod, blade can be stopped in any position, and exhaust gas amount entering heating chamber is adjusted according to needs;By being arranged back pressure sensor, engine exhaust back pressure can be sensed, when back pressure increases to set value, air outlet end one can be closed, engine operating condition needs are guaranteed, in addition, by being arranged temperature sensor, the temperature in heating container can be sensed, and heating is carried out when needed. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the utility model, the following will be to the description needed to use the drawings briefly introduced, obviously, the following description in the drawings is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings.

[0026] Figure 1 It is the structural schematic diagram of the second embodiment of the utility model.

[0027] Figure 2 It is the assembly structure schematic diagram of three-way pipe and conversion assembly in the first embodiment of the utility model.

[0028] In the drawing, 1, engine;2, muffler;3, three-way pipe;301, air inlet end;302, air outlet end one;4, exhaust pipe;5, air guide pipe;6, fin;7, exhaust pipe two;8, water tank;9, air inlet pipe;10, exhaust pipe one;11, heating pipe;12, heating chamber;13, blade;14, electric push rod;15, base. DETAILED DESCRIPTION

[0029] In order to make the purpose, feature, advantage of the utility model more obvious and easy to understand, the following will be to the technical scheme in the utility model, clear, complete description is carried out to the embodiment in the utility model, obviously, the following described embodiment is only a part of the embodiment of the utility model, rather than all embodiments. Based on the embodiment in the patent, all other embodiments obtained by those skilled in the art without making creative labor belong to the scope of the patent protection. Specific Implementation Method 1

[0031] like Figure 1 As shown in the figure, this specific embodiment provides a heating system utilizing exhaust waste heat, including an intake pipe 9, a heating chamber 12, a three-way pipe 3, and a conversion assembly. The heating chamber 12 is located at the bottom or side of the container to be heated in the vehicle, and the coverage area of ​​the heating chamber 12 is the same as the area of ​​the bottom or side of the container to be heated. The heating chamber 12 is connected to an exhaust pipe 10. The intake end 301 of the three-way pipe 3 is connected to the intake pipe 9, the exhaust end 302 of the three-way pipe 3 is connected to the heating chamber 12, and the exhaust end 2 of the three-way pipe 3 is connected to the exhaust pipe 4. The conversion assembly includes blades 13 and a drive assembly. The blades 13 are movably disposed at the exhaust end 302 of the three-way pipe 3, and the blades 13 can block the exhaust end 302. In this specific embodiment, the container to be heated can be a water tank or a vehicle compartment.

[0032] This specific embodiment uses a heating chamber 12 to exchange heat with a heated container. On the one hand, compared with pipes, it increases the heating exchange area, improves the exchange efficiency, and expands the heating area. On the other hand, the heating chamber 12 has a larger volume, and compared with the heating pipes 11 in the prior art, it will not significantly increase the exhaust back pressure of the engine 1, ensuring complete combustion of fuel.

[0033] like Figure 1 As shown, in order to reduce the length of the exhaust gas flow pipe and reduce heat loss, in this specific embodiment, the heating chamber 12 is provided with an air guide pipe 5 near the engine 1. The air guide pipe 5 is connected to the exhaust end 302. With this arrangement, the length of the intake pipe 9 and the air guide pipe 5 can be shortened, thereby reducing heat loss.

[0034] like Figure 1 As shown, to improve the heating speed, the heating chamber 12 is also connected to a heating pipe 11, which can extend into the container to be heated. The heating pipe 11 is connected to an exhaust pipe 7. Furthermore, multiple radial heat sinks 6 are arranged on the heating pipe 11 along its axial direction. With this arrangement, in conjunction with the heating chamber, the effect of heating the inside and outside of the container to be heated is achieved. At the same time, the radial heat sinks 6 increase the heat exchange area, further increasing the heat exchange speed.

[0035] like Figure 2As shown, in order to ensure smooth movement of the blade 13, a through groove is horizontally arranged on the tee pipe 3, the through groove is communicated with the gas outlet end one 302, the blade 13 is movably arranged in the through groove, the blade 13 is in L-shaped structure, the vertical end of the blade 13 is connected with the driving assembly, and the driving assembly is arranged on the tee pipe 3; furthermore, a sealing ring is embedded on the groove wall of the through groove, the tail gas leakage and heat loss can be reduced by arranging the sealing ring, and the guide rail is further arranged on the through groove, and the sliding groove is arranged at the corresponding position of the horizontal end bottom of the blade 13, so that the blade 13 is prevented from being inclined.

[0036] The driving assembly is used for driving the blade 13 to move, for this purpose, the driving assembly can comprise a cylinder and a base 15 connected with each other, the base 15 is arranged on the tee pipe 3, and the piston rod of the cylinder is connected with the blade 13; but in order to enable the blade 13 to stop at any position and realize adjustment of the gas outlet amount of the gas outlet end one 302, as shown in the embodiment, Figure 2 In the embodiment, the driving assembly comprises an electric push rod 14 and a base 15 connected with each other, the base 15 is arranged on the tee pipe 3, the electric push rod 14 is connected with the blade 13, the electric push rod 14 is connected with the controller of the vehicle and can be stretched and retracted to stop at any position, so that adjustment of the gas outlet amount of the gas outlet end one 302 is realized.

[0037] In some working conditions of the engine 1, the exhaust back pressure increases, and it is required to reduce the exhaust back pressure, for realizing intelligent control, the embodiment further comprises a back pressure sensor, the back pressure sensor is arranged on the intake pipe 9 and can monitor the exhaust back pressure of the intake pipe 9; meanwhile, the embodiment further comprises a temperature sensor, the temperature sensor is arranged in the inside of the container to be heated, and by monitoring the temperature in the container to be heated, it can be judged whether the tail gas needs to be heated. Embodiment two

[0039] As shown in the embodiment, Figure 1 The embodiment provides a vehicle, which comprises a water tank 8, a controller, an engine 1 and a muffler 2, the muffler 2 is communicated with the engine 1, further comprises the heating system utilizing tail gas waste heat of the embodiment one, the intake pipe 9 is communicated with the muffler 2, the heating cavity 12 is arranged at the bottom of the water tank 8 and is designed in an integrated manner with the water tank 8, that is, the bottom surface of the water tank 8 is the top surface of the heating cavity 12, and the back pressure sensor, the temperature sensor and the electric push rod 14 are electrically connected with the controller; in the embodiment, the vehicle can be a water spraying vehicle or a high-pressure cleaning vehicle.

[0040] From the above embodiment, it can be seen that the utility model has the following beneficial effects:

[0041] 1. Heat exchange is performed on the heated container through the heating chamber 12. On the one hand, compared with the pipeline, the heating exchange area is increased, the exchange efficiency is improved, and the heating area is expanded. On the other hand, the heating chamber 12 has a large volume, which will not significantly increase the exhaust back pressure of the engine 1, thus ensuring complete combustion of fuel.

[0042] 2. By placing the air guide pipe 5 close to the engine 1, the pipe length can be shortened, reducing heat loss during exhaust gas flow.

[0043] 3. By setting the heating tube 11, the inside of the container to be heated can be heated, thereby increasing the heating speed; by setting the heat sink 6, the heat exchange area is further increased, thereby further increasing the heating speed.

[0044] 4. By setting a sealing ring, exhaust gas leakage and heat loss can be reduced;

[0045] 5. By setting the electric push rod 14, the blade 13 can be stopped at any position, and the amount of exhaust gas entering the heating chamber 12 can be adjusted as needed;

[0046] 6. The back pressure sensor can sense the exhaust back pressure of engine 1. When the back pressure increases to the set value, the exhaust end 302 can be closed to ensure the working condition of engine 1. In addition, the temperature sensor can sense the temperature inside the container to be heated and heat it when necessary.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heating system utilizing waste heat from exhaust gas, comprising an intake pipe (9), characterized in that, Also includes: Heating chamber (12) is located at the bottom or side of the container to be heated in the vehicle. The heating chamber (12) has the same coverage area as the bottom or side of the container to be heated. The heating chamber (12) is connected to an exhaust pipe (10). Three-way pipe (3), the air inlet end (301) of the three-way pipe (3) is connected to the air inlet pipe (9), the air outlet end one (302) of the three-way pipe (3) is connected to the heating chamber (12), and the air outlet end two of the three-way pipe (3) is connected to the exhaust pipe (4). The conversion assembly includes a blade (13) and a drive assembly. The blade (13) is movably disposed at the first (302) outlet of the three-way pipe (3). The blade (13) is capable of blocking the first (302) outlet.

2. The heating system utilizing waste heat from exhaust gas as described in claim 1, characterized in that, The heating chamber (12) is provided with an air guide pipe (5) at one end near the engine (1), and the air guide pipe (5) is connected to the air outlet (302).

3. The heating system utilizing waste heat from exhaust gas as described in claim 2, characterized in that, The heating chamber (12) is also connected to a heating pipe (11), which can extend into the container to be heated, and the heating pipe (11) is connected to an exhaust pipe (7).

4. The heating system utilizing waste heat from exhaust gas as described in claim 3, characterized in that, The heating tube (11) has multiple radial heat sinks (6) arranged along its axial direction.

5. The heating system utilizing waste heat from exhaust gas as described in any one of claims 1-4, characterized in that, A horizontal passage groove is provided on the three-way pipe (3), the passage groove is connected to the air outlet (302), the blade (13) is movably disposed in the passage groove, one end of the blade (13) is connected to the drive assembly, and the drive assembly is disposed on the three-way pipe (3).

6. The heating system utilizing waste heat from exhaust gas as described in claim 5, characterized in that, A sealing ring is embedded in the wall of the passage groove.

7. The heating system utilizing waste heat from exhaust gas as described in claim 6, characterized in that, The drive assembly includes a cylinder and a base (15) connected together. The base (15) is disposed on the three-way pipe (3), and the piston rod of the cylinder is connected to the blade (13).

8. The heating system utilizing waste heat from exhaust gas as described in claim 6, characterized in that, The drive assembly includes an electric push rod (14) and a base (15) connected together. The base (15) is disposed on the three-way pipe (3), and the electric push rod (14) is connected to the blade (13).

9. The heating system utilizing waste heat from exhaust gas as described in claim 8, characterized in that, It also includes a back pressure sensor and a temperature sensor, the back pressure sensor being disposed on the air intake pipe (9) and the temperature sensor being disposed inside the container to be heated.

10. A vehicle comprising a water tank, a controller, an engine (1), and a muffler (2), the muffler (2) being connected to the engine (1), characterized in that, It also includes a heating system that utilizes waste heat from exhaust gas as described in claim 9, wherein the intake pipe (9) is connected to the muffler (2), the heating chamber (12) is located at the bottom of the water tank and is integrated with the water tank, and the back pressure sensor, the temperature sensor and the electric push rod (14) are all electrically connected to the controller.

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