Plate-fin heat exchanger

Abstract

According to the plate-fin heat exchanger, a heat exchange shell and a heat flow shell are sequentially overlapped in a staggered mode, a heat exchange cavity is formed in the heat exchange shell, and a heat exchange U-shaped flow channel is formed in the heat exchange cavity; a heat flow cavity is formed in the heat flow shell, and a U-shaped heat flow channel is formed in the heat flow cavity; the heat exchange shell and the heat flow shell are each provided with a heat exchange liquid inlet, a heat exchange liquid outlet, a heat flow inlet and a heat flow outlet. A heat exchange liquid inlet channel is formed between the heat exchange liquid inlets, and a heat exchange liquid outlet channel is formed between the heat exchange liquid outlets; a hot-flow liquid inlet channel is formed between the hot-flow inlets, and a hot-flow liquid outlet channel is formed between the hot-flow outlets; the two ends of the hot flow U-shaped flow channel communicate with the hot flow liquid inlet channel and the hot flow liquid outlet channel correspondingly, and the two ends of the heat exchange U-shaped flow channel communicate with the refrigerant inlet channel and the heat exchange liquid outlet channel correspondingly. Openings of the heat exchange U-shaped flow channel and the heat flow U-shaped flow channel are oppositely arranged for improving heat exchange efficiency, and the heat flow separation ribs are of a double-rib structure, so that tension cracks during machining are avoided.

Description

Technical Field

[0001] The utility model relates to the field of heat exchangers, in particular to a plate-fin heat exchanger. Background Art

[0002] The battery of a tram will generate a lot of heat during operation, so it is necessary to dissipate heat to keep the battery temperature within an appropriate range. At the same time, recycling the heat energy generated by the battery helps save energy and improve the energy efficiency of the entire vehicle system. In traditional trams, the heat of the battery is directly discharged to the outside through the radiator, resulting in a waste of heat energy. In order to save energy, it is necessary to recycle the heat dissipated by the battery. Therefore, in order to solve the above problems, a plate-fin heat exchanger is proposed. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model proposes a plate-fin heat exchanger, and the specific technical solution is as follows:

[0004] A plate-fin heat exchanger, characterized in that:

[0005] It comprises a heat exchange shell and a heat flow shell, wherein the heat exchange shell and the heat flow shell are alternately stacked in sequence;

[0006] The heat exchange shell contains a heat exchange chamber, and a heat exchange U-shaped flow channel is provided in the heat exchange chamber;

[0007] The heat flow housing contains a heat flow chamber, and the heat flow chamber is provided with a heat flow U-shaped flow channel;

[0008] The heat exchange shell and the heat flow shell are both provided with a heat exchange liquid inlet, a heat exchange liquid outlet, a heat flow inlet and a heat flow outlet;

[0009] A heat exchange liquid inlet channel is formed between the heat exchange liquid inlets, and a heat exchange liquid outlet channel is formed between the heat exchange liquid outlets;

[0010] A heat flow inlet channel is formed between the heat flow inlets, and a heat flow outlet channel is formed between the heat flow outlets;

[0011] The two ends of the heat flow U-shaped flow channel are respectively connected to the heat flow inlet channel and the heat flow outlet channel, and the two ends of the heat exchange U-shaped flow channel are respectively connected to the refrigerant inlet channel and the heat exchange outlet channel.

[0012] In order to better realize the utility model, it can be further provided that: diversion particles are evenly distributed on the hot flow U-shaped flow channel.

[0013] Furthermore: heat exchange fins are arranged in the heat exchange U-shaped flow channel.

[0014] Furthermore: the heat flow separation rib is arranged on the heat flow housing, and the heat flow separation rib forms a heat flow U-shaped flow channel in the heat flow chamber.

[0015] Furthermore: the heat flow separation rib adopts a double rib structure.

[0016] Furthermore, the edges of the heat exchange liquid inlet and the heat exchange liquid outlet on the heat exchange shell and the heat flow inlet on the heat flow shell are all convex downward to form a sealing portion.

[0017] Furthermore: the heat exchange U-shaped flow channel and the opening of the heat flow U-shaped flow channel are arranged opposite to each other.

[0018] The beneficial effects of the utility model are as follows: the overall structure is simple and compact, with high heat exchange efficiency and excellent heat dissipation performance. By transferring the heat emitted by the battery to the plate-fin heat exchanger, the heat is effectively recovered for heating the interior of the vehicle. At the same time, compared with traditional heat exchangers, the plate-fin heat exchanger has a larger heat exchange surface area and can fully utilize the heat dissipation heat, thereby improving energy utilization efficiency. The heat exchange shell and the heat flow shell are stacked in sequence to form a multi-layer heat exchange channel. The heat exchange shell adopts a heat exchange U-shaped flow channel, and the heat flow shell adopts a heat flow U-shaped flow channel. The openings of the heat exchange U-shaped flow channel and the heat flow U-shaped flow channel are arranged relative to each other to improve the heat exchange efficiency. The heat flow separation rib adopts a double rib structure to avoid tearing during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall structure diagram of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model when it is disconnected from the heat exchange liquid inlet channel and the heat exchange liquid outlet channel;

[0021] Figure 3 It is a cross-sectional view of the utility model cut off from the direction of the heat flow liquid inlet channel and the heat flow liquid outlet channel;

[0022] Figure 4 It is the structural diagram of the heat flow shell;

[0023] Figure 5 This is the connection diagram between the heat exchange shell and the heat dissipation fins.

[0024] The accompanying drawings in the figure illustrate heat exchange shell 1, heat flow shell 2, heat exchange dividing ribs 3, heat flow dividing ribs 4, heat exchange U-shaped flow channel 5, heat flow U-shaped flow channel 6, heat exchange liquid inlet channel 7, heat exchange liquid outlet channel 8, heat flow liquid inlet channel 9, hot flow liquid outlet channel 10, heat exchange fins 11, and diversion particles 12. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present utility model, it should be noted that the terms "vertical", "upper", "lower", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present utility model. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] like Figures 1 to 5 As shown:

[0028] A plate-fin heat exchanger comprises a heat exchange shell 1 and a heat flow shell 2 with open upper end surfaces. The heat exchange shell 1 and the heat flow shell 2 are stacked alternately in sequence. The heat exchange shell 1 contains a heat exchange chamber, and a heat exchange U-shaped flow channel 5 is provided in the heat exchange chamber. The heat flow shell 2 contains a heat flow chamber, and a heat flow U-shaped flow channel 6 is provided in the heat flow chamber.

[0029] The heat exchange shell 1 and the heat flow shell 2 are both provided with a heat exchange liquid inlet, a heat exchange liquid outlet, a heat flow inlet and a heat flow outlet;

[0030] A heat exchange liquid inlet channel 7 is formed between the heat exchange liquid inlets, and a heat exchange liquid outlet channel 8 is formed between the heat exchange liquid outlets;

[0031] A heat flow inlet channel 9 is formed between the heat flow inlets, and a heat flow outlet channel 10 is formed between the heat flow outlets;

[0032] Both ends of the heat flow U-shaped flow channel 6 are respectively connected to the heat flow inlet channel 9 and the heat flow outlet channel 10 , and the heat exchange U-shaped flow channel 5 and the opening of the heat flow U-shaped flow channel 6 are arranged opposite to each other.

[0033] The heat exchange partition rib 3 is arranged in the heat exchange shell 1, and the heat exchange partition rib 3 is divided into a heat exchange U-shaped flow channel 5 in the heat exchange shell 1. The two ends of the heat exchange U-shaped flow channel 5 are respectively connected to the heat exchange liquid inlet channel 7 and the heat exchange liquid outlet channel 8. Heat exchange fins 11 with the same structure as the heat exchange U-shaped flow channel 5 are arranged in the heat exchange shell 1.

[0034] The heat flow separation rib 4 is arranged in the heat flow shell 2. The heat flow separation rib 4 adopts a double-rib structure to avoid tearing during processing. The heat flow separation rib 4 divides the heat flow shell 2 to form a heat flow U-shaped flow channel 6. Diverter particles 12 are distributed in the heat flow U-shaped flow channel 6. The diverter particles 12 make the heat flow distribution uniform and facilitate heat conduction.

[0035] Principle of the utility model: the heat exchange chamber and the heat flow chamber are staggered, the heat flow passes through the surface of the battery, takes away the dissipated heat, and then enters the multi-layer heat flow chamber from the heat flow inlet channel 9, the heat exchange fluid in the waste heat utilization system enters the multi-layer heat exchange chamber through the heat exchange inlet channel 7, and after the heat exchange fluid exchanges heat with the heat flow in the adjacent heat flow layer, the heat exchange fluid enters the waste heat utilization system from the heat exchange outlet channel 8.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plate-fin heat exchanger, characterized in that: It comprises a heat exchange shell and a heat flow shell, wherein the heat exchange shell and the heat flow shell are alternately stacked in sequence; The heat exchange shell contains a heat exchange chamber, and a heat exchange U-shaped flow channel is provided in the heat exchange chamber; The heat flow housing contains a heat flow chamber, and the heat flow chamber is provided with a heat flow U-shaped flow channel; The heat exchange shell and the heat flow shell are both provided with a heat exchange liquid inlet, a heat exchange liquid outlet, a heat flow inlet and a heat flow outlet; A heat exchange liquid inlet channel is formed between the heat exchange liquid inlets, and a heat exchange liquid outlet channel is formed between the heat exchange liquid outlets; A heat flow inlet channel is formed between the heat flow inlets, and a heat flow outlet channel is formed between the heat flow outlets; The two ends of the heat flow U-shaped flow channel are respectively connected to the heat flow inlet channel and the heat flow outlet channel, and the two ends of the heat exchange U-shaped flow channel are respectively connected to the refrigerant inlet channel and the heat exchange outlet channel.

2. A plate-fin heat exchanger according to claim 1, characterized in that: The hot flow U-shaped flow channel is evenly distributed with diversion particles.

3. A plate-fin heat exchanger according to claim 2, characterized in that: Heat exchange fins are arranged in the heat exchange U-shaped flow channel.

4. A plate-fin heat exchanger according to claim 3, characterized in that: The heat flow separation rib is arranged on the heat flow housing, and the heat flow separation rib forms a heat flow U-shaped flow channel in the heat flow chamber.

5. A plate-fin heat exchanger according to claim 4, characterized in that: The heat flow separation ribs adopt a double rib structure.

6. A plate-fin heat exchanger according to claim 5, characterized in that: The heat flow inlet and outlet on the heat exchange shell and the edges of the heat exchange inlet and outlet on the heat exchange shell are all convex downward to form a sealing portion.

7. A plate-fin heat exchanger according to claim 6, characterized in that: The heat exchange U-shaped flow channel is arranged opposite to the opening of the heat flow U-shaped flow channel.

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