Vehicle engine waste heat frost prevention plate-fin heat exchanger adapted to low temperature environment

Abstract

The utility model provides a vehicle engine waste heat frost prevention plate fin heat exchanger suitable for low temperature environment relates to heat exchanger field, including heat exchange core body, the first end cap is connected with second end cap on heat exchange core body upside, the third end cap and fourth end cap are connected with heat exchange core body downside, heat exchange core body includes a plurality of vertical setting baffle, adjacent baffle constitutes cold flow channel, hot flow channel or waste heat channel, cold flow channel and waste heat channel are arranged respectively in hot flow channel both sides, the first end cap is cold flow channel inlet and outlet with third end cap, second end cap and fourth end cap are hot flow channel inlet and outlet, the front and back side of heat exchange core body is provided with first air blowing mechanism and second air blowing mechanism intercommunication waste heat channel respectively, the utility model provides a vehicle engine waste heat frost prevention plate fin heat exchanger suitable for low temperature environment, has solved the problem that present technique vehicle is easy to damage under cold weather, can utilize the temperature of engine generation and carry out waste heat recycling, protects the normal operation of vehicle under cold weather.

Description

Technical Field

[0001] This utility model relates to the field of heat exchangers, and in particular to a finned heat exchanger for waste heat protection of vehicle engines adapted to low-temperature environments. Background Technology

[0002] Plate-fin heat exchangers are a common type of equipment. Their core principle is to form multiple independent flow channels through the combination of baffles, fins and seals. Cold and hot media flow in the channels on both sides of the baffles, and the cold media achieves heat transfer at the baffles.

[0003] Vehicles are typically equipped with plate-fin heat exchangers, which are used to cool the engine. A cooling circuit is constructed using the plate-fin heat exchanger, which connects to the hot medium flow channel of the plate-fin heat exchanger. Cooling water from the circulating coolant tank is also connected to the cold medium flow channel of the plate-fin heat exchanger, thereby cooling down the hot medium in the cooling circuit after it has exchanged heat with the engine. This ensures that the hot medium can be cooled down and continue to dissipate heat from the engine, thus ensuring that the engine is maintained at a suitable operating temperature.

[0004] In cold regions, the normal operation of a vehicle's power system is easily affected by low temperatures. Low temperatures can cause the viscosity of hydraulic oil and lubricating oil in the system to rise sharply and its fluidity to drop significantly. This not only increases the transmission resistance of the gearbox and drive shaft, but also reduces the lubrication effect and aggravates the wear of mechanical parts. In addition, the gearbox valve body, fuel filter, brake line interface, and oil pressure sensor are prone to freezing and blockage due to residual moisture in the interior and embrittlement of metal materials due to low temperatures. This can lead to gear shifting failure, fuel supply interruption, pipeline leakage, and even endanger driving safety. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a vehicle engine waste heat anti-frost finned heat exchanger adapted to low-temperature environments, which can utilize the temperature generated by the engine for waste heat reuse, protecting the normal operation of the vehicle in cold climates.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a vehicle engine waste heat anti-frost finned heat exchanger adapted to low-temperature environments, comprising a heat exchange core; a first end cap and a second end cap are connected to the upper side of the heat exchange core; a third end cap and a fourth end cap are connected to the lower side of the heat exchange core; the heat exchange core includes multiple vertically arranged partitions; adjacent partitions form a cold flow channel, a hot flow channel, or a waste heat channel; the cold flow channel and the waste heat channel are respectively arranged on both sides of the hot flow channel; the first end cap communicates with the upper openings of all the cold flow channels; the third end cap communicates with the lower openings of all the cold flow channels; the second end cap communicates with the upper openings of all the hot flow channels; the fourth end cap communicates with the lower openings of all the hot flow channels; the front and rear openings of the cold flow channels and the hot flow channels are sealed with seals; a first air blower mechanism facing rearward is provided on the front side of the heat exchange core; a second air blower mechanism facing forward is provided on the rear side of the heat exchange core; the air blowing positions of the first air blower mechanism and the second air blower mechanism are staggered.

[0007] The vehicle engine waste heat anti-frost finned heat exchanger adapted to low-temperature environments provided by this utility model preferably further includes a diversion valve block; the diversion valve block includes an inlet and multiple outlets; the inlet of the diversion valve block is connected to the second end cap.

[0008] The vehicle engine waste heat anti-frost finned heat exchanger provided by this utility model, which is adapted to low-temperature environments, preferably further includes an auxiliary water tank; the auxiliary water tank is connected to the outlet of the first end cap through a pipe; and the auxiliary water tank is provided with a water outlet hole.

[0009] The above technical solution has the following advantages or beneficial effects: This utility model provides a finned heat exchanger for vehicle engine waste heat anti-frost in low-temperature environments, relating to the field of heat exchangers, including a heat exchange core; the upper side of the heat exchange core is connected to a first end cap and a second end cap; the lower side of the heat exchange core is connected to a third end cap and a fourth end cap; the heat exchange core includes multiple vertically arranged partitions; adjacent partitions form a cold flow channel, a hot flow channel, or a waste heat channel; the cold flow channel and the waste heat channel are respectively arranged on both sides of the hot flow channel; the first end cap communicates with the upper openings of all the cold flow channels; the third end cap communicates with the lower openings of all the cold flow channels; the second end cap communicates with the upper openings of all the hot flow channels; the fourth end cap communicates with the lower openings of all the hot flow channels; the front and rear openings of the cold flow channels and the hot flow channels are sealed with seals; a first air blower mechanism facing rearward is provided on the front side of the heat exchange core; a second air blower mechanism facing forward is provided on the rear side of the heat exchange core; the blowing positions of the first air blower mechanism and the second air blower mechanism are staggered. The present invention provides a vehicle engine waste heat anti-frost finned heat exchanger adapted to low-temperature environments, which solves the problem that vehicles are easily damaged in cold climates. It can utilize the temperature generated by the engine for waste heat reuse, protecting the normal operation of the vehicle in cold climates. Attached Figure Description

[0010] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0011] Figure 1 This is a schematic diagram of the overall structure of the vehicle engine waste heat anti-frost finned heat exchanger adapted to low-temperature environments provided in Embodiment 1 of this utility model.

[0012] Figure 2 This is a schematic diagram of the position of the second blower mechanism of the vehicle engine waste heat anti-frost finned heat exchanger adapted to low-temperature environments provided in Embodiment 1 of this utility model. Detailed Implementation

[0013] Example 1: The waste heat anti-frost plate-fin heat exchanger for vehicle engines adapted to low-temperature environments provided in Embodiment 1 of this utility model, such as... Figures 1 to 2As shown, it includes a heat exchange core 1; a first end cap 11 and a second end cap 12 are connected to the upper side of the heat exchange core 1; a third end cap 13 and a fourth end cap 14 are connected to the lower side of the heat exchange core 1; the heat exchange core 1 includes multiple vertically arranged partitions; adjacent partitions form a cold flow channel, a hot flow channel, or a waste heat channel; the cold flow channel and the waste heat channel are respectively arranged on both sides of the hot flow channel; the first end cap 11 is connected to the upper opening of all the cold flow channels; the third end cap 13 is connected to the lower opening of all the cold flow channels; the second end cap 12 is connected to the upper opening of all the hot flow channels; the fourth end cap 14 is connected to the lower opening of all the hot flow channels; the front and rear openings of the cold flow channels and the hot flow channels are sealed by seals; a first blower mechanism 2 with the air direction facing backward is provided on the front side of the heat exchange core 1; a second blower mechanism 3 with the air direction facing forward is provided on the rear side of the heat exchange core 1; the blowing positions of the first blower mechanism 2 and the second blower mechanism 3 are staggered.

[0014] The vehicle engine waste heat anti-frost plate-fin heat exchanger adapted to low-temperature environments provided in Embodiment 1 of this utility model has the following characteristics: In use, the hot flow channel is connected to the vehicle cooling system through the second end cap 12 and the fourth end cap 14. The coolant in the hot flow channel provides conventional cooling for the engine. The cold flow channel carries cooling water through the first end cap 11 and the third end cap 13, aiming to cool the coolant in the hot flow channel. The hot flow channel and the waste heat channel are separated by a partition. Air in the waste heat channel is blown to various parts of the vehicle interior by the first blower mechanism 2 and the second blower mechanism 3. While cooling the coolant in the hot flow channel, the air, heated by the partition on the hot flow channel side, can radiate outwards, thus utilizing waste heat. Compared to existing plate-fin heat exchangers that rely entirely on cooling water to cool the coolant, this embodiment, by alternately setting the cold flow channel and the waste heat channel, utilizes cooling water and air to dissipate heat from the coolant, respectively. The heated air is then blown towards vehicle interior components that require temperature maintenance, preventing low-temperature damage to these components. If existing technologies attempt to utilize waste heat, they can only cover a very small area through natural radiation and cannot accurately guide the heat to the target components inside the vehicle. The structure provided in this embodiment uses the first blower mechanism 2 and the second blower mechanism 3 on both sides to force the airflow, allowing the hot air to diffuse in a specific direction to the area that needs to be insulated.

[0015] The vehicle engine waste heat anti-frost finned heat exchanger provided in Embodiment 1 of this utility model, which is adapted to low-temperature environments, solves the problem that vehicles are easily damaged in cold climates. It can reuse the waste heat generated by the engine to protect the normal operation of the vehicle in cold climates.

[0016] In this embodiment, a flow divider block 4 is also included. The flow divider block 4 includes an inlet and multiple outlets 41. The inlet of the flow divider block 4 is connected to the second end cap 12. The function of the second end cap 12 is to collect the coolant. However, relying solely on the structure of the second end cap 12, it is impossible to achieve differentiated flow control for each heat flow channel. The core function of the heat flow channel is to cool the engine. Different parts of the engine, such as the middle of the cylinder block and the exhaust side of the cylinder head, have different heat intensity and require different flow rates of coolant. If all heat flow channels are directly connected through the second end cap, it will lead to insufficient cooling in areas with high heat intensity and over-cooling in areas with low heat intensity, wasting energy. In this embodiment, the flow divider block 4 is used to divide the coolant (the coolant flows through different pipes and then converges, finally merging into the heat exchange core from the fourth end cap 14), thereby better dissipating heat from various parts of the engine.

[0017] In this embodiment, an auxiliary water tank 5 is also included; the auxiliary water tank 5 is connected to the outlet of the first end cap 11 via a pipe 6; and a water outlet 51 is provided on the auxiliary water tank 5. When the cooling water in the cold flow channel exchanges heat with the hot flow channel, its temperature will rise, causing its volume to expand and its pressure to rise accordingly. The auxiliary water tank 5 is connected to the outlet of the first end cap 11 via the pipe 6, which can accommodate the cooling water that overflows during expansion. At the same time, it is connected to the atmosphere through the water outlet 51 to release excessive pressure and prevent the cold flow channel, pipe, and first end cap 11 from deforming and being damaged due to excessive pressure. When the cooling water cools down and contracts, the water in the auxiliary water tank 5 can flow back to the cold flow channel to fill the volume gap and prevent negative pressure from being generated in the cold flow channel, which would cause air to enter.

[0018] In summary, this utility model provides a finned heat exchanger for vehicle engine waste heat defrosting in low-temperature environments, relating to the field of heat exchangers, including a heat exchange core; a first end cap and a second end cap are connected to the upper side of the heat exchange core; a third end cap and a fourth end cap are connected to the lower side of the heat exchange core; the heat exchange core includes multiple vertically arranged partitions; adjacent partitions form a cold flow channel, a hot flow channel, or a waste heat channel; the cold flow channel and the waste heat channel are respectively arranged on both sides of the hot flow channel; the first end cap is connected to all the cold flow channels. The upper side opening of the heat exchanger is connected; the third end cap is connected to the lower side opening of all the cold flow channels; the second end cap is connected to the upper side opening of all the hot flow channels; the fourth end cap is connected to the lower side opening of all the hot flow channels; the front and rear side openings of the cold flow channels and the hot flow channels are sealed with seals; a first blower mechanism facing rearward is provided on the front side of the heat exchange core; a second blower mechanism facing forward is provided on the rear side of the heat exchange core; the blowing positions of the first blower mechanism and the second blower mechanism are staggered. This utility model provides a vehicle engine waste heat anti-frost finned heat exchanger adapted to low-temperature environments, solving the problem of easy damage to vehicles in cold climates. It can utilize the temperature generated by the engine for waste heat reuse, protecting the normal operation of the vehicle in cold climates.

[0019] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A finned heat exchanger for preventing frost damage from vehicle engine waste heat, suitable for low-temperature environments, characterized in that... It includes a heat exchange core; a first end cap and a second end cap are connected to the upper side of the heat exchange core; a third end cap and a fourth end cap are connected to the lower side of the heat exchange core; The heat exchange core includes multiple vertically arranged baffles; adjacent baffles form a cold flow channel, a hot flow channel, or a waste heat channel; the cold flow channel and the waste heat channel are respectively arranged on both sides of the hot flow channel; The first end cap is connected to the upper opening of all the cold flow channels; the third end cap is connected to the lower opening of all the cold flow channels. The second end cap is connected to the upper opening of all the heat flow channels; the fourth end cap is connected to the lower opening of all the heat flow channels. The front and rear openings of the cold flow channel and the hot flow channel are sealed with seals. The front side of the heat exchange core is provided with a first air blower mechanism facing the rear. A second air blower mechanism with the airflow direction facing forward is provided on the rear side of the heat exchange core; the air blowing positions of the first air blower mechanism and the second air blower mechanism are staggered.

2. The vehicle engine waste heat anti-frost finned heat exchanger adapted to low-temperature environments as described in claim 1, characterized in that, It also includes a diversion valve block; the diversion valve block includes an inlet and multiple outlets; the inlet of the diversion valve block is connected to the second end cap.

3. The vehicle engine waste heat anti-frost finned heat exchanger adapted to low-temperature environments as described in claim 1, characterized in that, It also includes an auxiliary water tank; The auxiliary water tank is connected to the outlet of the first end cap via a pipe; the auxiliary water tank is provided with a water outlet.

Images