Flow equalizing type plate heat exchanger

Abstract

The utility model discloses a flow equalizing plate heat exchanger. A flow equalizing plate is provided with a first flow equalizing cover and a second flow equalizing cover; the refrigerant shell and the heat flow shell are sequentially arranged between the base plate and the top cover in a staggered and stacked mode. A refrigerant flow layer is arranged in the refrigerant shell, and a heat flow layer is arranged in the heat flow shell; the refrigerant flow layer communicates with the refrigerant liquid inlet channel and the refrigerant liquid outlet channel, and the heat medium flow layer communicates with the heat flow liquid inlet channel and the heat flow liquid outlet channel. The whole structure is simple, the first flow equalizing cover and the second flow equalizing cover are arranged on the flow equalizing plate, and the flow equalizing ring is arranged at the flow guide inlet of the flow equalizing plate, so that the heat exchange performance of refrigerant liquid is improved, and the refrigerant liquid can better exchange heat with a heat flow layer.

Description

Technical Field

[0001] The utility model relates to the field of heat exchangers, in particular to a flow-balanced plate 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. At present, plate heat exchangers are used to cool the tram's power system to ensure that electrical components and components such as batteries do not overheat. Plate heat exchangers are used to transfer heat between two fluids. The current defect in the use of plate heat exchangers is that the refrigerant inlet structure of the traditional plate heat exchanger causes the fluid to flow directly into the channel, resulting in uneven flow in the channel between the plates, and the heat exchange effect in some areas is poor, and the heat exchange surface cannot be fully utilized. At the same time, inconsistent flow rates affect the uniform transfer of heat. Due to the uneven flow of the fluid, the heat exchange efficiency of the traditional plate heat exchanger will be affected, and the optimal heat exchange effect cannot be achieved. The defect of the currently used plate heat exchanger is that, therefore, in order to solve the above problems, a uniform flow plate heat exchanger is provided. Utility Model Content

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

[0004] A uniform flow plate heat exchanger, characterized in that:

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

[0006] The flow balancing plate is provided with a first flow balancing cover and a second flow balancing cover;

[0007] The refrigerant housing and the heat flow housing are alternately stacked and arranged between the base plate and the top cover in sequence;

[0008] The refrigerant shell contains a refrigerant flow layer, and the heat flow shell contains a heat flow layer;

[0009] 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.

[0010] 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;

[0011] The refrigerant liquid inlet channel is connected to the first flow equalizing cover, and the refrigerant liquid outlet channel is connected to the second flow equalizing cover;

[0012] The first flow balancing cover is connected to a refrigerant feed pipe, and the second flow balancing cover is connected to a refrigerant discharge pipe.

[0013] In order to better realize the utility model, it can be further as follows: the flow equalizing plate is respectively provided with a flow guide inlet and a flow guide outlet, the flow guide inlet is connected with the refrigerant liquid inlet channel, the flow guide inlet is located in the first flow equalizing cover, the flow guide outlet is connected with the refrigerant liquid outlet channel, and the flow guide outlet is located in the second flow equalizing cover.

[0014] Furthermore: the refrigerant liquid inlet and the flow guide inlet are respectively located at two ends of the first flow equalizing cover.

[0015] Furthermore: a heat flow inlet pipe and a heat flow outlet pipe are connected to the flow equalizing 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.

[0016] Furthermore: a flow equalizing ring is provided at the flow guide inlet of the flow equalizing plate.

[0017] Furthermore: both sides of the base plate are connected with fixed support plates.

[0018] Furthermore: the first flow balancing cover is a strip-shaped shell structure.

[0019] Furthermore: the diameter of the refrigerant feed pipe is smaller than that of the refrigerant discharge pipe.

[0020] The beneficial effects of the utility model are as follows: the overall structure is simple, a first flow balancing cover and a second flow balancing cover are arranged on the flow balancing plate, and a flow balancing ring is arranged at the guide inlet of the flow balancing plate. The refrigerant enters the refrigerant inlet channel through the flow balancing ring and is evenly distributed, thereby improving the heat exchange performance of the refrigerant liquid and enabling better heat exchange with the hot flow layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the first structural diagram of the utility model;

[0022] Figure 2 This is the second structural diagram of the utility model;

[0023] Figure 3 for Figure 2 AA section view;

[0024] Figure 4 for Figure 2 BB cross-sectional view;

[0025] The accompanying drawings in the figure are described as follows: substrate 1, flow equalizing plate 2, first flow equalizing cover 3, second flow equalizing cover 4, refrigerant feed pipe 5, refrigerant discharge pipe 6, refrigerant shell 7, heat flow shell 8, fixed support plate 9, refrigerant liquid inlet channel 10, refrigerant liquid outlet channel 11, heat flow liquid inlet pipe 12, heat flow liquid outlet pipe 13, flow equalizing ring 14, heat flow liquid inlet channel 15, and heat flow liquid outlet channel 16. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] like Figures 1 to 4 As shown:

[0029] A flow-equalizing plate heat exchanger comprises a base plate 1, a flow-equalizing plate 2, a plurality of refrigerant shells 7 and a heat flow shell 8. Both sides of the base plate 1 are connected with fixed support plates 9.

[0030] A first flow balancing cover 3 and a second flow balancing cover 4 are arranged on the flow balancing plate 2, and the first flow balancing cover is a strip-shaped shell structure.

[0031] The refrigerant housing 7 and the heat flow housing 8 are alternately stacked and arranged between the base plate 1 and the top cover;

[0032] The refrigerant shell 7 contains the refrigerant flow layer, and the heat flow shell 8 contains the heat flow layer;

[0033] The refrigerant shell 7 and the heat flow shell 8 are provided with a refrigerant inlet, a refrigerant outlet, a heat flow inlet and a heat flow outlet. A refrigerant inlet channel 10 is formed between the refrigerant inlets, a refrigerant outlet channel 11 is formed between the refrigerant outlets, a heat flow inlet channel 15 is formed between the heat flow inlets, and a heat flow outlet channel 16 is formed between the heat flow outlets.

[0034] The refrigerant flow layer is respectively connected to the refrigerant liquid inlet channel 10 and the refrigerant liquid outlet channel 11, and the heat medium flow layer is respectively connected to the heat flow liquid inlet channel 15 and the heat flow liquid outlet channel 16;

[0035] The refrigerant liquid inlet channel 10 is connected to the first flow equalizing cover 3, and the refrigerant liquid outlet channel 11 is connected to the second flow equalizing cover 4;

[0036] A refrigerant feed pipe 5 is connected to the first flow balancing cover 3 , and a refrigerant discharge pipe 6 is connected to the second flow balancing cover 4 .

[0037] The equalizing plate 2 is provided with a flow guide inlet and a flow guide outlet, the flow guide inlet is connected to the refrigerant inlet channel 10, the flow guide inlet is located in the first equalizing cover 3, the flow guide outlet is connected to the refrigerant outlet channel 11, and the flow guide outlet is located in the second equalizing cover 4. The refrigerant inlet and the flow guide inlet are respectively located at both ends of the first equalizing cover 3. The equalizing plate 2 is connected with a hot flow inlet pipe 12 and a hot flow outlet pipe 13, the hot flow inlet pipe 12 is connected to the hot flow inlet channel 15, and the hot flow outlet pipe 13 is connected to the hot flow outlet channel 16. The flow guide inlet of the equalizing plate 2 is provided with a flow equalizing ring 14.

[0038] The diameter of the refrigerant feed pipe 5 is smaller than that of the refrigerant discharge pipe 6 .

[0039] The edges of the heat flow inlet and outlet on the refrigerant housing 7 and the heat flow inlet and outlet on the heat flow housing 8 are all convex downward to form a sealing portion.

[0040] The sealing parts at the edges of the heat flow inlet and the heat flow outlet on the heat flow housing 8 are attached to the bottom of the refrigerant housing 7 to prevent the refrigerant liquid in the refrigerant housing 7 from entering the heat flow inlet and the heat flow outlet.

[0041] The sealing parts at the edges of the heat flow inlet and outlet on the refrigerant housing 7 are attached to the bottom of the heat flow housing 8 to prevent the heat flow in the heat flow housing 8 from entering the refrigerant inlet and outlet.

[0042] Principle of the utility model: the refrigerant liquid first enters the flow equalizing plate 2 through the refrigerant inlet pipe, and a flow equalizing ring 14 is provided at the guide inlet of the flow equalizing plate 2. The refrigerant liquid enters the refrigerant inlet channel 10 from the flow equalizing ring 14, and the refrigerant liquid passes through the corresponding refrigerant flow layer from the refrigerant inlet channel 10. The hot flow enters the hot flow inlet channel 15 through the hot flow inlet pipe 12 and then enters the hot flow layer. The refrigerant flow layer exchanges heat with the adjacent hot flow layer, and the hot flow returns to the hot flow outlet pipe 13 through the hot flow outlet channel 16, and the refrigerant liquid then enters the refrigerant outlet channel 11, and the refrigerant liquid enters the refrigerant outlet pipe from the refrigerant outlet channel 11, and the refrigerant outlet pipe enters the external circulation system.

[0043] 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.

[0044] 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 uniform flow plate heat exchanger, characterized in that: It includes a base plate, a flow equalizing plate, a plurality of refrigerant shells and a heat flow shell; The flow balancing plate is provided with a first flow balancing cover and a second flow balancing cover; 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 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. 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 refrigerant liquid inlet channel is connected to the first flow equalizing cover, and the refrigerant liquid outlet channel is connected to the second flow equalizing cover; The first flow balancing cover is connected to a refrigerant feed pipe, and the second flow balancing cover is connected to a refrigerant discharge pipe.

2. The uniform flow plate heat exchanger according to claim 1, characterized in that: The flow equalizing plate is respectively provided with a flow guide inlet and a flow guide outlet, the flow guide inlet is connected with the refrigerant liquid inlet channel, the flow guide inlet is located in the first flow equalizing cover, the flow guide outlet is connected with the refrigerant liquid outlet channel, and the flow guide outlet is located in the second flow equalizing cover.

3. The uniform flow plate heat exchanger according to claim 2, characterized in that: The refrigerant liquid inlet and the flow guide inlet are respectively located at two ends of the first flow equalizing cover.

4. The uniform flow plate heat exchanger according to claim 3, characterized in that: A heat flow inlet pipe and a heat flow outlet pipe are connected to the flow equalizing 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.

5. The uniform flow plate heat exchanger according to claim 4, characterized in that: The flow guide inlet of the flow balancing plate is provided with a flow balancing ring.

6. The uniform flow plate heat exchanger according to claim 5, characterized in that: Both sides of the base plate are connected with fixed support plates.

7. The uniform flow plate heat exchanger according to claim 6, characterized in that: The first flow balancing cover is a strip-shaped shell structure.

8. The uniform flow plate heat exchanger according to claim 7, characterized in that: The diameter of the refrigerant feed pipe is smaller than that of the refrigerant discharge pipe.

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