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CN-122008801-A - Automobile engine waste heat recovery heating and refrigerating system

CN122008801ACN 122008801 ACN122008801 ACN 122008801ACN-122008801-A

Abstract

The invention discloses an automobile engine waste heat recovery heating and refrigerating system, and relates to the technical field of automobile energy conservation and thermal management. The invention has the advantages of high waste heat recovery efficiency, great reduction of heat loss, improvement of the heat efficiency of an engine, reduction of fuel consumption, faster heating in winter, stronger heating effect, remarkable improvement of the vehicle using experience in a low-temperature environment, realization of waste heat auxiliary refrigeration in summer, reduction of the load of an air conditioner compressor, further realization of fuel saving and emission reduction, light and thin structure, good wrapping property, no need of changing an engine main body, simple and convenient installation, strong universality, reduction of the external temperature of an engine cabin, reduction of the thermal aging of peripheral parts, prolonged service life and improvement of the safety and reliability of the whole vehicle.

Inventors

  • ZHOU YUNLAI
  • LIU XIAORUI
  • LIU HUIYING
  • DAI ZHIHE

Assignees

  • 上海渊镝科技有限公司

Dates

Publication Date
20260512
Application Date
20260330

Claims (8)

  1. 1. The automobile engine waste heat recovery heating and refrigerating system comprises an engine cylinder body (1) and is characterized in that the outer walls of the outside of the engine cylinder body (1) and an exhaust section of the engine cylinder body are wrapped with a high-temperature-resistant heat-insulating paper wrapping layer (2), and a heat exchange pipeline (3) is arranged between the high-temperature-resistant heat-insulating paper wrapping layer (2) and the engine cylinder body (1); The device also comprises a circulation control unit (4) and a warm air/refrigeration switching device (5), wherein the circulation control unit (4) is connected with two ends of the heat exchange pipeline (3) and is used for monitoring temperature and pressure parameters of a heat exchange medium in real time and automatically adjusting the circulation flow and direction of the medium according to a preset temperature threshold in a vehicle, and the warm air/refrigeration switching device (5) is electrically connected with the circulation control unit (4).
  2. 2. The automobile engine waste heat recovery heating and refrigerating system according to claim 1, wherein the high-temperature-resistant heat insulation paper wrapping layer (2) is sequentially provided with an inner heat insulation paper (21), an outer heat insulation paper (22) and an outer protective layer (23) from inside to outside.
  3. 3. The automobile engine waste heat recovery heating and refrigerating system according to claim 2, wherein the inner-layer heat insulation paper (21) and the outer-layer heat insulation paper (22) are flexible ceramic fiber paper or aerogel composite heat insulation paper with temperature resistance of more than or equal to 1000 ℃, the thickness of the inner-layer heat insulation paper (21) and the outer-layer heat insulation paper (22) is 1-3 mm, and the thickness of the outer-layer protective layer (23) is 0.3-0.5 mm.
  4. 4. An automobile engine waste heat recovery heating and refrigerating system according to claim 1, characterized in that the heat exchange pipeline (3) is clung to the surface of the engine cylinder body (1) and is arranged in a serpentine manner by adopting a copper pipe with phi 6-phi 8mm or a high-temperature-resistant hose.
  5. 5. The heat recovery heating and cooling system of an automobile engine according to claim 1, wherein the circulation control unit (4) comprises a temperature sensor (41), a pressure sensor (42), a central controller (43) and a power module (44).
  6. 6. The automobile engine waste heat recovery heating and refrigerating system according to claim 5 is characterized in that a PT1000 type platinum resistance sensor is adopted as the temperature sensor (41) and is arranged at an inlet end and an outlet end of the heat exchange pipeline (3) to collect medium temperature data in real time, a diffusion silicon type pressure sensor is adopted as the pressure sensor (42) and is used for monitoring medium pressure in the pipeline, an STM32F4 series microprocessor is adopted as a core of the central controller (43) to integrate data collection, logic operation and control output functions, and the temperature sensor can be used for providing stable power supply for all components in the circulation control unit (4) according to a preset temperature threshold value in an automobile, and a DC/DC conversion circuit is adopted as the power supply module (44) to input voltage range of 12V-24V.
  7. 7. The heat recovery heating and refrigerating system of an automobile engine according to claim 5, wherein the circulation control unit (4) is further provided with a CAN communication interface, and real-time data interaction is realized with the warm air/refrigeration switching device (5).
  8. 8. The automobile engine waste heat recovery heating and refrigerating system according to claim 1, wherein the warm air/refrigeration switching device (5) is used for realizing flow adjustment and automatic/manual switching of winter and summer modes based on a 12V circulating water pump and a temperature control valve.

Description

Automobile engine waste heat recovery heating and refrigerating system Technical Field The invention relates to the technical field of automobile energy conservation and heat management, in particular to an automobile engine waste heat recovery heating and refrigerating system. Background Energy conservation and thermal management of automobiles are core technologies for ensuring efficient operation of vehicles, and energy efficiency, safety and driving experience are improved by optimizing heat control. The automobile heat management is a system which maintains each part to work in the optimal temperature range by comprehensively controlling the heat source and the heat load of the whole automobile so as to ensure safety, improve energy efficiency and prolong service life. A large amount of waste heat is dissipated through the engine body and the exhaust system in the working process of the traditional automobile engine, the heat efficiency is low, heating in the automobile in winter depends on the water temperature of the engine, the temperature is slowly raised, the heating effect is poor, and an air conditioner compressor is directly driven by the engine in summer, so that the oil consumption and the load are increased. The existing heat insulation and waste heat recovery device has the disadvantages of complex structure, high cost and inconvenient installation, and is difficult to consider heat insulation, heat exchange and overall vehicle suitability. Therefore, the invention provides an automobile engine waste heat recovery heating and refrigerating system. Disclosure of Invention Aiming at the defects of the prior art, the invention provides an automobile engine waste heat recovery heating and refrigerating system to solve the problems. The automobile engine waste heat recovery heating and refrigerating system comprises an engine cylinder body, wherein the outer walls of the outside of the engine cylinder body and an exhaust section of the engine cylinder body are wrapped with high-temperature-resistant heat-insulating paper wrapping layers, and a heat exchange pipeline is arranged between the high-temperature-resistant heat-insulating paper wrapping layers and the engine cylinder body; The device comprises a heat exchange pipeline, a heat exchange medium, a circulating control unit and a warm air/refrigeration switching device, wherein the heat exchange pipeline is connected with the heat exchange pipeline, the heat exchange pipeline is used for monitoring temperature and pressure parameters of the heat exchange medium in real time and automatically adjusting circulating flow and direction of the medium according to a preset temperature threshold value in a vehicle, and the warm air/refrigeration switching device is electrically connected with the circulating control unit. Preferably, the high-temperature-resistant heat-insulating paper wrapping layer is sequentially arranged from inside to outside to form an inner-layer heat-insulating paper layer, an outer-layer heat-insulating paper layer and an outer-layer protective layer. Preferably, the inner-layer heat-insulating paper and the outer-layer heat-insulating paper are flexible ceramic fiber paper or aerogel composite heat-insulating paper with the temperature resistance of more than or equal to 1000 ℃, the thickness of the inner-layer heat-insulating paper and the thickness of the outer-layer heat-insulating paper are 1-3 mm, and the thickness of the outer-layer protective layer is 0.3-0.5 mm. Preferably, the heat exchange pipeline is tightly attached to the surface of the engine cylinder body, and adopts a copper pipe with the diameter of phi 6-phi 8mm or a high-temperature-resistant hose to be arranged in a serpentine mode. Preferably, the circulation control unit comprises a temperature sensor, a pressure sensor, a central controller and a power supply module. Preferably, the temperature sensor adopts a PT1000 type platinum resistance sensor which is arranged at the inlet and outlet ends of the heat exchange pipeline and is used for collecting medium temperature data in real time, the pressure sensor adopts a diffusion silicon type pressure sensor which is used for monitoring medium pressure in the pipeline, the central controller takes an STM32F4 series microprocessor as a core and integrates data collection, logic operation and control output functions, and the power module can supply stable power for each component in the circulation control unit according to a preset temperature threshold in the vehicle, and the power module adopts a DC/DC conversion circuit with an input voltage range of 12V-24V. Preferably, the circulation control unit is also provided with a CAN communication interface, and realizes real-time data interaction with the warm air/refrigeration switching device. Preferably, the warm air/refrigeration switching device realizes flow adjustment and automatic/manual switching of winter and summer modes based on a 12V circulat