CN214221304U

CN214221304U - Waste heat utilization system of automobile engine

Info

Publication number: CN214221304U
Application number: CN202022769854.XU
Authority: CN
Inventors: 周明
Original assignee: JIANGSU XINNENG POWER TECHNOLOGY CO LTD
Current assignee: JIANGSU XINNENG POWER TECHNOLOGY CO LTD
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-09-17
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a waste heat utilization system of an automobile engine, which comprises an anti-freezing cooling liquid tank arranged at the rear end position of an automobile chassis; the automobile engine comprises an engine body, a heat collecting sleeve arranged below the outer side of the engine body and a heat collecting cover arranged at the upper end of the engine body; the heat collecting sleeve and the heat collecting cover are arranged into a double-layer structure, a heat collecting pipeline is arranged between the double-layer structure, and the two heat collecting pipelines are both connected with the anti-freezing cooling liquid tank through a first liquid pump and a heat collecting liquid pipe; the engine body is connected with a discharge pipeline, the discharge pipeline is connected with a first pipeline and a second pipeline through a three-way valve, the first pipeline is connected with a first heat exchanger, a water inlet pipe and a water outlet pipe which are connected with the anti-freezing cooling liquid tank are arranged on the first heat exchanger, and the water inlet pipe is connected with the anti-freezing cooling liquid tank through a second liquid pump. The utility model discloses a large amount of harmful gas of the insufficient production of burning when reducing cold start, the environmental protection, and can effectively improve the human thermal comfort of driver and crew in the passenger cabin.

Description

Waste heat utilization system of automobile engine

Technical Field

The utility model relates to an automobile engine technical field, concretely relates to automobile engine's waste heat utilization system.

Background

Under the large background of industries that global energy situation is more and more tense, environmental protection is more and more reluctant, and the automobile reserves of all countries in the world are continuously rising, the traditional fuel automobile and the hybrid electric automobile face huge energy-saving and emission-reduction pressure. For a traditional automobile engine, the water temperature in an engine water jacket is low during cold start, at the moment, the lubricating effect of each part of the engine is poor, the friction force is large, the thermal efficiency is low, at the moment, combustion in a cylinder body is insufficient, the generation and emission of harmful gas are high, at present, a good method is not provided for improving the thermal efficiency of the engine during cold start, emission reduction is also completed by means of a three-way catalytic converter of an exhaust system, the exhaust temperature and the flow rate during cold start are low, and the three-way catalytic effect is poor. In addition, in northern areas and places with cold weather, the time for heating the automobile is long every year, so that the recycling of the automobile waste heat is very important.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waste heat utilization system of automobile engine to prior art's defect and not enough.

In order to achieve the above object, the utility model adopts the following technical scheme: the waste heat utilization system of the automobile engine is characterized by comprising an anti-freezing cooling liquid tank arranged at the rear end position of an automobile chassis; the automobile engine comprises an engine body, a heat collecting sleeve arranged below the outer side of the engine body and a heat collecting cover arranged at the upper end of the engine body; the heat collecting cover and the heat collecting cover are arranged into a double-layer structure, a heat collecting pipeline is arranged between the double-layer structure, and the two heat collecting pipelines are respectively connected with the anti-freezing cooling liquid tank through a first liquid pump and a heat collecting liquid pipe; the engine body is connected with a discharge pipe, the discharge pipe is connected with first pipeline and second pipeline through a three-way valve, first pipeline and second pipeline intercommunication have a gas vent, first tube coupling has a first heat exchanger, be provided with the inlet tube and the outlet pipe of connecting the antifreeze coolant liquid case on the first heat exchanger, the inlet tube passes through the second liquid pump and connects the antifreeze coolant liquid case, the storage has the coolant liquid that has the antifreeze liquid in the antifreeze coolant liquid incasement.

Further, the heat collecting sleeve is of a cuboid cavity structure without an upper end face, the heat collecting cover is of a cuboid cavity structure without a lower end face, a plurality of heat collecting sheets are arranged in the heat collecting cover and the heat collecting sleeve, a plurality of heat collecting end faces are arranged at the tops of the heat collecting sheets, and the heat collecting end faces are in contact with the engine body.

Further, the three-way valve is an electromagnetic valve.

Furthermore, the heat collecting liquid pipe is arranged on the automobile chassis in an S-shaped bent mode, and the heat collecting pipeline is arranged in a double-layer structure of the heat collecting sleeve or the heat collecting cover in an S-shaped bent mode.

Further, the second pipeline is arranged at a position below the automobile.

After the structure is adopted, the utility model discloses beneficial effect does: the waste heat utilization system of the utility model adopts the heat collecting pipe in the heat collecting sleeve and the heat collecting cover to collect heat on one hand, and exhausts the tail gas exhausted by the exhaust pipe of the engine body into the first pipeline which is connected with the first heat exchanger to exchange heat on the other hand, thereby heating the water in the water inlet pipe, the water outlet pipe and the anti-freezing cooling liquid tank, realizing the heating of the bottom of the automobile, simultaneously raising the temperature of the anti-freezing cooling liquid tank, further heating the cooling liquid of the heat collecting pipe, preventing partial heat from being recovered from automobile exhaust gas when the automobile is in cold start, quickly and reliably warming up the engine, improving the heat efficiency and in-cylinder combustion sufficiency when the engine is in cold start, thereby reduce a large amount of harmful gas that the burning was not abundant and produced when cold start, the environmental protection can also effectively improve the human thermal comfort of driver and crew in the passenger cabin simultaneously.

Drawings

Fig. 1 is a schematic diagram of the system structure of the present invention;

fig. 2 is a schematic structural diagram of the automobile engine of the present invention.

Description of reference numerals: 1. an anti-freezing cooling liquid tank; 2. an engine body; 3. a heat collecting pipe; 4. a heat collection cover; 5. a heat collection pipe; 6. a first liquid pump; 7. a heat collecting liquid pipe; 8. a discharge conduit; 9. a first pipeline; 10. a second pipeline; 11. an exhaust port; 12. a first heat exchanger; 13. a water inlet pipe; 14. a water outlet pipe; 15. a heat collecting sheet; 16. a heat collection end face; 17. a three-way valve; 18. a second liquid pump.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

Referring to fig. 1 and 2, a waste heat utilization system of an automobile engine comprises an anti-freezing coolant tank 1 arranged at the rear end position of an automobile chassis; the automobile engine comprises an engine body 2, a heat collecting sleeve 3 arranged below the outer side of the engine body 2 and a heat collecting cover 4 arranged at the upper end of the engine body 2; the heat collecting sleeve 3 and the heat collecting cover 4 are arranged to be of double-layer structures, a heat collecting pipeline 5 is arranged between the double-layer structures, and the two heat collecting pipelines 5 are respectively connected with the anti-freezing cooling liquid tank 1 through a first liquid pump 6 and a heat collecting liquid pipe 7; the engine body 1 is connected with a discharge pipe 8, the discharge pipe 8 is connected with first pipeline 9 and second pipeline 10 through a three-way valve 17, first pipeline 9 and second pipeline 10 intercommunication have a gas vent 11, first pipeline 9 is connected with a first heat exchanger 12, be provided with inlet tube 13 and outlet pipe 14 of connecting frostproofing coolant case 1 on the first heat exchanger 12, inlet tube 13 passes through second liquid pump 18 and connects frostproofing coolant case 1, the coolant liquid that has the antifreeze liquid is stored in frostproofing coolant case 1.

The utility model discloses in the further embodiment, heat collection cover 3 sets up the cuboid cavity structure into no up end, heat collection lid 4 sets up the cuboid cavity structure into no terminal surface down, all be provided with a plurality of thermal-arrest pieces 15 in heat collection lid 4 and the heat collection cover 3, the top of thermal-arrest piece 15 is provided with a plurality of thermal-arrest terminal surfaces 16, thermal-arrest terminal surface 16 contacts with engine body 2. The utility model discloses a thermal-arrest terminal surface 16 carries out the thermal-arrest with the contact of engine body 1 to in transmitting to thermal-arrest lid 4 and thermal-arrest cover 3 through thermal-arrest piece 15, thermal-arrest lid 4 and thermal-arrest cover 3 in thermal-arrest pipeline 5 and first liquid pump 6 circulate with the coolant liquid in the coolant liquid case that prevents frostbite, thereby heat the car bottom, thereby heat in to the vapour carriage.

The utility model discloses in a further embodiment, three-way valve 17 is solenoid valve, and solenoid valve has realized automatic control, when summer need not heat in the automobile railway carriage or compartment, discharges automobile engine's tail gas from second pipeline 10 to do not heat the coolant liquid.

The utility model discloses in further embodiment, thermal-arrest liquid pipe 7 is the S-shaped bending at vehicle chassis and arranges, thermal-arrest pipeline 5 is the S-shaped bending in the bilayer structure of thermal-arrest cover 3 or thermal-arrest lid 4 and arranges, increased thermal-arrest liquid pipe 7 and with vehicle chassis' S area of contact, increase thermal-arrest effect.

The utility model discloses in a further embodiment, second pipeline 10 sets up in car below position, realizes that second pipeline 10 keeps away from vehicle chassis, avoids the heat to concentrate on chassis department.

The working process of the utility model is as follows:

when heat needs to be recycled in winter, the first liquid pump 6 is started, heat is collected at the upper end and the lower end of the engine body 1 through the heat collection sleeve 3 and the heat collection pipe 5 in the heat collection cover 4, cooling liquid in the heat collection pipe 5 circulates to heat an automobile chassis, the temperature of the engine body 2 is reduced, meanwhile, tail gas discharged by the discharge pipe 8 of the engine body 2 is discharged into the first pipeline 9 through the control of the three-way valve, the first pipeline 9 is connected with the first heat exchanger 12 to exchange heat, the second liquid pump 18 is started, the first heat exchanger 12 heats water in the water inlet pipe 13, the water outlet pipe 14 and the anti-freezing cooling liquid tank 1, and therefore the bottom of an automobile is heated, meanwhile, the temperature of the anti-freezing cooling liquid tank 1 rises, and further heating of the cooling liquid is carried out on the heat collection pipe 5.

In summer, the heat is not required to be recycled, the tail gas discharged from the discharge pipeline 8 of the engine body 2 is discharged into the second pipeline 10 through the control of the three-way valve 17, and the automobile chassis is not required to be heated; meanwhile, the first liquid pump 6 is turned on, the upper and lower ends of the engine body 2 are collected through the heat collecting pipe 5 in the heat collecting sleeve 3 and the heat collecting cover 4, and the upper and lower sides of the engine body 2 are cooled.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A waste heat utilization system of an automobile engine is arranged at the bottom of an automobile and is characterized by comprising an anti-freezing cooling liquid tank arranged at the rear end of an automobile chassis; the automobile engine comprises an engine body, a heat collecting sleeve arranged below the outer side of the engine body and a heat collecting cover arranged at the upper end of the engine body; the heat collecting cover and the heat collecting cover are arranged into a double-layer structure, a heat collecting pipeline is arranged between the double-layer structure, and the two heat collecting pipelines are respectively connected with the anti-freezing cooling liquid tank through a first liquid pump and a heat collecting liquid pipe; the engine body is connected with a discharge pipe, the discharge pipe is connected with first pipeline and second pipeline through a three-way valve, first pipeline and second pipeline intercommunication have a gas vent, first tube coupling has a first heat exchanger, be provided with the inlet tube and the outlet pipe of connecting the antifreeze coolant liquid case on the first heat exchanger, the inlet tube passes through the second liquid pump and connects the antifreeze coolant liquid case, the storage has the coolant liquid that has the antifreeze liquid in the antifreeze coolant liquid incasement.

2. The system of claim 1, wherein the heat collecting sleeve has a rectangular hollow structure without an upper end surface, the heat collecting cover has a rectangular hollow structure without a lower end surface, the heat collecting cover and the heat collecting sleeve have a plurality of heat collecting fins, the heat collecting fins have a plurality of heat collecting end surfaces on top thereof, and the heat collecting end surfaces contact with the engine body.

3. The waste heat utilization system of the automobile engine as claimed in claim 1, wherein the three-way valve is a solenoid valve.

4. The system of claim 1, wherein the heat collecting liquid pipe is disposed in an S-shaped curve in the vehicle chassis, and the heat collecting pipe is disposed in an S-shaped curve in the double-layered structure of the heat collecting cover or the heat collecting cover.

5. The system of claim 1, wherein the second pipeline is disposed at a lower position of the vehicle.