Efficient heat exchanger

Abstract

According to the efficient heat exchanger, a refrigerant shell and a heat flow shell are sequentially arranged between a base plate and a top cover in a staggered and stacked mode, a refrigerant flow layer communicates with a refrigerant liquid inlet channel and a refrigerant liquid outlet channel, and a heat medium flow layer communicates with a heat flow liquid inlet channel and a heat flow liquid outlet channel; the connecting shell is connected to the top plate, the connecting shell communicates with the upper refrigerant liquid inlet channel, and a refrigerant feeding pipe and a refrigerant discharging pipe are arranged on the connecting shell; a flow blocking refrigerant shell is arranged between the refrigerant shell at the top and the refrigerant shell at the bottom, a flow blocking plate is arranged at a refrigerant liquid outlet of the flow blocking refrigerant shell, the flow blocking plate enables a refrigerant liquid inlet channel to be divided into an upper refrigerant liquid inlet channel and a lower refrigerant liquid inlet channel, a flow guide pipe is arranged in the upper refrigerant liquid inlet channel, and a flow guide pipe is arranged in the lower refrigerant liquid inlet channel. The upper end of the flow guide pipe is communicated with the refrigerant discharging pipe, an annular hole is formed in the flow baffle, and the lower end of the flow guide pipe extends into the lower refrigerant liquid inlet channel from the annular hole. By arranging the flow blocking refrigerant shell, the heat exchange path of refrigerant liquid in the flow channel is prolonged, the heat exchange efficiency is improved, and the refrigerant liquid can only flow out through the liquid outlet pipe.

Description

Technical Field

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

[0002] During the operation of the tram, it is necessary to ensure that the electric system remains within the appropriate temperature range. The heat exchanger is used to transfer heat between two fluids. At present, heat exchangers are used to cool the electric system of the tram to ensure that electrical components and batteries and other components do not overheat. The defects of the heat exchanger currently used are that the heat transfer path is relatively short and the surface area of ​​heat exchange is limited, resulting in low heat transfer efficiency. At the same time, aluminum lead agent is used between the refrigerant feed pipe and the refrigerant discharge pipe and the connecting shell, which causes liquid splashing during the pressing process. Therefore, in order to solve the above problems, it is necessary to provide a high-efficiency heat exchanger. Utility Model Content

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

[0004] A high efficiency heat exchanger, characterized in that:

[0005] It includes a base plate, a top plate, a connecting shell, a plurality of refrigerant shells and a heat flow shell;

[0006] The refrigerant housing and the heat flow housing are alternately stacked and arranged between the base plate and the top cover in sequence;

[0007] The refrigerant shell contains a refrigerant flow layer, and the heat flow shell contains a heat flow layer;

[0008] The refrigerant flow layer is respectively connected to the refrigerant liquid inlet channel and the refrigerant liquid outlet channel, and the heat medium flow layer is respectively connected to the heat flow liquid inlet channel and the heat flow liquid outlet channel;

[0009] The connecting shell is connected to the top plate, the connecting shell is in communication with the upper refrigerant inlet channel, and a refrigerant feed pipe and a refrigerant discharge pipe are provided on the connecting shell;

[0010] A baffle refrigerant shell is provided between the top refrigerant shell and the bottom refrigerant shell, and a baffle plate is provided at the refrigerant outlet of the baffle refrigerant shell, and the baffle plate divides the refrigerant inlet channel into an upper refrigerant inlet channel and a lower refrigerant inlet channel, and a guide pipe is provided in the upper refrigerant inlet channel, and the upper end of the guide pipe is connected to the refrigerant discharge pipe, and an annular hole is provided in the baffle plate, and the lower end of the guide pipe extends from the annular hole into the lower refrigerant inlet channel.

[0011] In order to better realize the utility model, it can be further:

[0012] A heat flow inlet pipe and a heat flow outlet pipe are connected to the top plate. The heat flow inlet pipe is communicated with the heat flow inlet channel, and the heat flow outlet pipe is communicated with the heat flow outlet channel.

[0013] Furthermore: the diameter of the refrigerant feed pipe is larger than that of the refrigerant discharge pipe.

[0014] Furthermore: the refrigerant feed pipe and the refrigerant discharge pipe are connected to the connecting shell by welding rings.

[0015] Furthermore: the refrigerant shell and the heat flow shell are both provided with a refrigerant inlet, a refrigerant outlet, a heat flow inlet and a heat flow outlet, a refrigerant inlet channel is formed between the refrigerant inlets, a refrigerant outlet channel is formed between the refrigerant 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.

[0016] The beneficial effects of the utility model are as follows: by setting a flow-blocking refrigerant shell, the heat exchange path of the refrigerant liquid in the flow channel is extended, and the heat exchange efficiency is improved. The refrigerant liquid can only flow out through the liquid outlet pipe. At the same time, the refrigerant feed pipe and the refrigerant outlet pipe are connected to the connecting shell by a welding ring. On the one hand, the processing cost is reduced, and on the other hand, it is more environmentally friendly and avoids liquid splashing caused by traditional aluminum lead agent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the first structural diagram of the utility model;

[0018] Figure 2 This is the second structural diagram of the utility model;

[0019] Figure 3 for Figure 2 AA's sectional three-dimensional diagram;

[0020] Figure 4 for Figure 2 A 3D cross-sectional view of BB;

[0021] Figure 5 for Figure 2 A 3D cross-sectional view of CC;

[0022] The accompanying drawings in the figure are described as follows: base plate 1, top plate 2, connecting shell 3, refrigerant shell 4, heat flow shell 5, upper refrigerant liquid inlet channel 6, lower refrigerant liquid inlet channel 7, refrigerant liquid outlet channel 8, heat flow liquid inlet channel 9, heat flow liquid outlet channel 10, baffle 11, guide pipe 12, flow-blocking refrigerant shell 13, refrigerant feed pipe 14, refrigerant discharge pipe 15, heat flow liquid inlet pipe 16, and heat flow liquid outlet pipe 17. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] like Figures 1 to 5 As shown:

[0026] A high-efficiency heat exchanger comprises a base plate 1, a top plate 2, a connecting shell 3, a plurality of refrigerant shells 4 and a heat flow shell 5;

[0027] The refrigerant housing 4 and the heat flow housing 5 are alternately stacked and arranged between the base plate 1 and the top plate 2 in sequence.

[0028] The refrigerant housing 4 contains a refrigerant flow layer, and the heat flow housing 5 contains a heat flow layer;

[0029] The refrigerant shell 4 and the heat flow shell 5 are both provided with a refrigerant inlet, a refrigerant outlet, a heat flow inlet and a heat flow outlet. A refrigerant inlet channel is formed between the refrigerant inlets, a refrigerant outlet channel 8 is formed between the refrigerant outlets, 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.

[0030] The refrigerant flow layer is respectively connected to the refrigerant liquid inlet channel and the refrigerant liquid outlet channel 8, and the heat medium flow layer is respectively connected to the heat flow liquid inlet channel 9 and the heat flow liquid outlet channel 10;

[0031] The connecting shell 3 is connected to the top plate 2, the connecting shell 3 is in communication with the upper refrigerant inlet channel 6, and a refrigerant feed pipe 14 and a refrigerant discharge pipe 15 are provided on the connecting shell 3, and the diameter of the refrigerant feed pipe 14 is larger than that of the refrigerant discharge pipe 15. The refrigerant feed pipe 14 and the refrigerant discharge pipe 15 are connected to the connecting shell 3 by welding rings.

[0032] The top plate 2 is connected with a heat flow liquid inlet pipe 16 and a heat flow liquid outlet pipe 17 . The heat flow liquid inlet pipe 16 is in communication with the heat flow liquid inlet channel 9 , and the heat flow liquid inlet outlet pipe is in communication with the heat flow liquid outlet channel 10 .

[0033] A baffle refrigerant shell 13 is provided between the top refrigerant shell 4 and the bottom refrigerant shell 4. The refrigerant outlet of the baffle refrigerant shell 13 is provided with a baffle plate 11. The baffle plate 11 divides the refrigerant inlet channel into an upper refrigerant inlet channel 6 and a lower refrigerant inlet channel 7. A guide tube 12 is provided in the upper refrigerant inlet channel 6. The upper end of the guide tube 12 is connected to the refrigerant discharge pipe 15. An annular hole is provided in the baffle plate 11. The lower end of the guide tube 12 extends from the annular hole into the lower refrigerant inlet channel 7.

[0034] The edges of the heat flow inlet and outlet on the refrigerant housing 4 and the heat flow inlet and outlet on the heat flow housing 5 are all convex downward to form a sealing portion.

[0035] The sealing parts at the edges of the heat flow inlet and outlet on the refrigerant housing 4 are attached to the bottom of the heat flow housing 5 to prevent the heat flow in the heat flow housing 5 from entering the refrigerant inlet and outlet.

[0036] The sealing parts at the edges of the heat flow inlet and the heat flow outlet on the heat flow housing 5 are attached to the bottom of the refrigerant housing 4 to prevent the refrigerant liquid in the refrigerant housing 4 from entering the heat flow inlet and the heat flow outlet.

[0037] Principle of the utility model: refrigerant liquid enters the connecting shell 3 from the refrigerant feed pipe 14, heat flow enters the heat flow inlet channel 9 from the heat flow inlet pipe 16, heat flow enters the corresponding heat flow layer through the heat flow inlet channel 9, the connecting shell 3 is connected with the refrigerant inlet channel, the refrigerant liquid enters the upper refrigerant inlet channel 6, the refrigerant liquid enters the refrigerant outlet channel 8 from the corresponding refrigerant flow layer through the upper refrigerant inlet channel 6, the refrigerant liquid enters the lower refrigerant liquid inlet channel from the corresponding refrigerant flow process in the refrigerant outlet channel 8, the refrigerant liquid enters the external system from the refrigerant outlet pipe 15 in the lower refrigerant inlet channel 7, wherein heat exchange is carried out between the refrigerant flow layer and the adjacent heat medium flow layer.

[0038] 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.

[0039] 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 high efficiency heat exchanger, characterized in that: It includes a base plate, a top plate, a connecting shell, a plurality of refrigerant shells and a heat flow shell; The refrigerant housing and the heat flow housing are alternately stacked and arranged between the base plate and the top cover in sequence; The refrigerant shell contains a refrigerant flow layer, and the heat flow shell contains a heat flow layer; The refrigerant flow layer is respectively connected to the refrigerant liquid inlet channel and the refrigerant liquid outlet channel, and the heat medium flow layer is respectively connected to the heat flow liquid inlet channel and the heat flow liquid outlet channel; The connecting shell is connected to the top plate, the connecting shell is in communication with the refrigerant inlet channel, and a refrigerant feed pipe and a refrigerant discharge pipe are provided on the connecting shell; A baffle refrigerant shell is provided between the top refrigerant shell and the bottom refrigerant shell, and a baffle plate is provided at the refrigerant outlet of the baffle refrigerant shell, and the baffle plate divides the refrigerant inlet channel into an upper refrigerant inlet channel and a lower refrigerant inlet channel, and a guide pipe is provided in the upper refrigerant inlet channel, and the upper end of the guide pipe is connected to the refrigerant discharge pipe, and an annular hole is provided in the baffle plate, and the lower end of the guide pipe extends from the annular hole into the lower refrigerant inlet channel.

2. A high efficiency heat exchanger according to claim 1, characterized in that: A heat flow inlet pipe and a heat flow outlet pipe are connected to the top plate. The heat flow inlet pipe is communicated with the heat flow inlet channel, and the heat flow outlet pipe is communicated with the heat flow outlet channel.

3. A high efficiency heat exchanger according to claim 2, characterized in that: The diameter of the refrigerant feed pipe is larger than that of the refrigerant discharge pipe.

4. A high-efficiency heat exchanger according to claim 3, characterized in that: The refrigerant feed pipe and the refrigerant discharge pipe are connected to the connection shell by using welding rings.

5. A high-efficiency heat exchanger according to claim 4, characterized in that: The refrigerant shell and the heat flow shell are both provided with a refrigerant inlet, a refrigerant outlet, a heat flow inlet and a heat flow outlet. A refrigerant inlet channel is formed between the refrigerant inlets, a refrigerant outlet channel is formed between the refrigerant 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.

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