Inserted tube type multi-runner plate heat exchanger

Abstract

The utility model discloses an insertion tube type multi-runner plate heat exchanger. A refrigerant shell and a heat flow shell are sequentially arranged between a base plate and a top plate in a staggered and overlapped mode. A first choked flow refrigerant shell is arranged between the refrigerant shell at the top and the refrigerant shell at the bottom, and a refrigerant liquid inlet of the first choked flow refrigerant shell is closed, so that a refrigerant liquid inlet channel is divided into an upper refrigerant liquid inlet channel and a lower refrigerant liquid inlet channel; a second choked flow refrigerant shell is arranged between the first choked flow refrigerant shell and the refrigerant shell at the bottom, a refrigerant liquid outlet of the second choked flow refrigerant shell is provided with a baffle, and the baffle divides a refrigerant liquid inlet channel into an upper refrigerant liquid outlet channel and a lower refrigerant liquid outlet channel; a liquid outlet pipe is arranged in the upper refrigerant liquid outlet channel in a penetrating mode, the upper end of the liquid outlet pipe is communicated with the liquid outlet of the top plate, the baffle is provided with an annular hole, and the lower end of the liquid outlet pipe penetrates through the annular hole and extends into the lower refrigerant liquid outlet channel. By arranging the first choked flow refrigerant shell and the second choked flow refrigerant shell, the heat exchange path of refrigerant liquid in the flow channel is prolonged, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of heat exchangers, in particular to an inserted - tube multi - channel plate heat exchanger. Background Art

[0002] During the operation of an electric vehicle, it is necessary to ensure that the electric system remains within an appropriate temperature range. Currently, a plate heat exchanger is used to cool the electric power system of the electric vehicle to ensure that components such as electrical components and batteries do not overheat. A plate heat exchanger is used for heat transfer between two fluids. By setting overlapping fluid channels, when the heat exchange process occurs, the hot fluid passes through one set of channels, while the cold fluid passes through the other set of channels, and heat is exchanged through the surface of the heat - conducting plate. The defect of the currently used plate heat exchanger is that the heat transfer path in the traditional plate heat exchanger is relatively short, and the heat exchange surface area is limited, resulting in a low heat transfer efficiency. Therefore, in order to solve the above problems, an inserted - tube multi - channel plate heat exchanger is provided. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides an inserted - tube multi - channel plate heat exchanger, and the specific technical solutions are as follows:

[0004] The inserted - tube multi - channel plate heat exchanger is characterized in that:

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

[0006] The refrigerant shells and the heat - flow shells are alternately stacked between the base plate and the top plate in sequence;

[0007] The inside of the refrigerant shell is a refrigerant flow layer, and the inside of the heat - flow shell is a heat - flow layer;

[0008] The refrigerant flow layer is respectively communicated with the refrigerant inlet channel and the refrigerant outlet channel, and the heat - flow layer is respectively communicated with the heat - flow inlet channel and the heat - flow outlet channel;

[0009] There is a first blocking refrigerant shell between the refrigerant shell at the top and the refrigerant shell at the bottom. The refrigerant inlet of the first blocking refrigerant shell is closed, so that the refrigerant inlet channel is divided into an upper refrigerant inlet channel and a lower refrigerant inlet channel;

[0010] There is a second blocking refrigerant shell between the first blocking refrigerant shell and the refrigerant shell at the bottom. A baffle is provided at the refrigerant outlet of the second blocking refrigerant shell, and this baffle divides the refrigerant inlet channel into an upper refrigerant outlet channel and a lower refrigerant outlet channel;

[0011] An outlet pipe is disposed through the upper refrigerant outlet channel. An annular flow channel is formed between the outlet pipe and the upper refrigerant outlet channel. The upper end of the outlet pipe communicates with the liquid outlet of the top plate. The baffle has an annular hole, and the lower end of the outlet pipe passes through the annular hole and extends into the lower refrigerant outlet channel.

[0012] To better implement the present utility model, it can be further:

[0013] A heat flow inlet pipe and a heat flow outlet pipe are connected to the top plate. The heat flow inlet pipe communicates with the heat flow inlet channel, and the heat flow outlet pipe communicates with the heat flow outlet channel.

[0014] Further: Fixed support plates are connected to both sides of the substrate.

[0015] Further: Refrigerant inlets, refrigerant outlets, heat exchange inlets, and heat exchange outlets are provided on both the refrigerant housing and the heat flow housing. 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 exchange inlets, and a heat flow outlet channel is formed between the heat exchange outlets.

[0016] The beneficial effects of the present utility model are:

[0017] The overall structure is simple. By providing the first flow-blocking refrigerant housing and the second flow-blocking refrigerant housing, inserting pipes are added inside the plate heat exchanger to extend the heat exchange path of the refrigerant liquid in the flow channel. By increasing the flow path of the fluid, the heat exchange efficiency is improved. By adding the inserting pipes, the refrigerant liquid can only flow out through the outlet pipe in the refrigerant flow path, and the heat exchange surface area is significantly increased, thereby improving the efficiency of the heat exchanger. Description of the Drawings

[0018] Figure 1 It is the overall structure diagram of the present utility model;

[0019] Figure 2 It is Figure 1 the C-C cross-sectional view of

[0020] Figure 3 It is Figure 1 the A-A cross-sectional view of

[0021] Figure 4 It is Figure 1 the B-B cross-sectional view of

[0022] The attached drawings in the figure illustrate a substrate 1, a top plate 2, a refrigerant housing 3, a heat dissipation housing 4, an upper refrigerant inlet channel 5, a lower refrigerant inlet channel 6, an upper refrigerant outlet channel 7, a lower refrigerant outlet channel 8, a heat flow inlet channel 9, a heat flow outlet channel 10, a heat flow inlet pipe 11, a heat flow outlet pipe 12, a first flow-blocking refrigerant housing 13, a second flow-blocking refrigerant housing 14, a baffle 15, an outlet pipe 16, and a fixed support plate 17. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] As Figures 1 to 4 shown:

[0026] The plug-in multi-channel plate heat exchanger includes a substrate 1, a top plate 2, a plurality of refrigerant housings 3 and a heat dissipation housing 4. The upper end surfaces of the refrigerant and heat flow housings are open. The refrigerant housings 3 and the heat flow housings are alternately stacked between the substrate 1 and the top plate 2 in sequence. Fixed support plates 17 are connected to both sides of the substrate 1. Among them, the inside of the refrigerant housing 3 is a refrigerant flow layer, and the inside of the heat flow housing is a heat flow layer.

[0027] Both the refrigerant housing 3 and the heat flow housing are provided with a refrigerant inlet, a refrigerant outlet, a heat exchange inlet, and a heat exchange outlet.

[0028] The refrigerant inlets form a refrigerant inlet channel, and the refrigerant outlets form a refrigerant outlet channel;

[0029] The heat exchange inlets form a heat flow inlet channel 9, and the heat exchange outlets form a heat flow outlet channel 10;

[0030] The refrigerant flow layer is respectively communicated with the refrigerant inlet channel and the refrigerant outlet channel, and the heat flow layer is respectively communicated with the heat flow inlet channel 9 and the heat flow outlet channel 10;

[0031] A heat flow inlet liquid pipe 11 and a heat flow outlet liquid pipe 12 are connected to the top plate 2. The heat flow inlet liquid pipe 11 is communicated with the heat flow inlet liquid channel 9, and the heat flow outlet liquid pipe 12 is communicated with the heat flow outlet liquid channel 10.

[0032] There is a first blocking refrigerant housing 13 for dividing the refrigerant inlet liquid channel between the refrigerant housing 3 at the top and the refrigerant housing 3 at the bottom. The refrigerant inlet of the first blocking refrigerant housing 13 is closed, so that the refrigerant inlet liquid channel is divided into an upper refrigerant inlet liquid channel 5 and a lower refrigerant inlet liquid channel 6;

[0033] There is a second blocking refrigerant housing 14 between the first blocking refrigerant housing 13 and the refrigerant housing 3 at the bottom. A baffle 15 is provided at the refrigerant outlet of the second blocking refrigerant housing 14. The baffle 15 divides the refrigerant inlet liquid channel into an upper refrigerant outlet liquid channel 7 and a lower refrigerant outlet liquid channel 8;

[0034] A liquid outlet pipe 16 is disposed in the upper refrigerant outlet liquid channel 7. An annular flow channel is formed between the liquid outlet pipe 16 and the upper refrigerant outlet liquid channel 7. The upper end of the liquid outlet pipe 16 is communicated with the liquid outlet of the top plate 2, and the lower end of the liquid outlet pipe 16 extends into the lower refrigerant outlet liquid channel 8.

[0035] Sealing portions are formed by downward protrusions at the edges of the heat exchange inlet and outlet of the refrigerant housing 3 and the heat exchange inlet and outlet of the heat flow housing.

[0036] The sealing portions at the edges of the heat exchange inlet and outlet of the heat flow housing are attached to the bottom of the refrigerant housing 3 to prevent the refrigerant liquid in the refrigerant housing 3 from entering the heat exchange inlet and the heat flow outlet.

[0037] The sealing portions at the edges of the heat exchange inlet and outlet of the refrigerant housing 3 are attached to the bottom of the heat flow housing to prevent the heat flow in the heat flow housing from entering the refrigerant inlet and the refrigerant outlet.

[0038] Principle of the present utility model: Heat flow enters the heat flow inlet channel 9 through the heat flow inlet liquid inlet pipe 11, and the heat flow inlet channel 9 enters the corresponding heat flow layer. Then, the heat flow passes through the heat flow layer and enters the heat flow inlet liquid outlet pipe 12 from the heat flow outlet channel 10. The refrigerant liquid enters the refrigerant inlet channel. Since the refrigerant inlet of the first refrigerant flow blocking housing 13 is closed, the refrigerant inlet channel is divided into an upper refrigerant inlet channel 5 and a lower refrigerant inlet channel 6. The refrigerant liquid can only enter the annular channel of the refrigerant outlet channel after heat exchange with the adjacent heat flow layer through the corresponding refrigerant flow layer from the upper refrigerant inlet channel 5. After the refrigerant liquid enters the annular channel, due to the baffle 15 of the second refrigerant flow blocking housing 14, the refrigerant inlet channel is divided into an upper refrigerant outlet channel 7 and a lower refrigerant outlet channel 8. The refrigerant liquid can only enter the lower refrigerant inlet channel 6 from the upper refrigerant outlet channel 7 through the corresponding refrigerant flow layer. Then, the refrigerant liquid enters the lower refrigerant outlet channel 8 after heat exchange with the adjacent heat flow layer through the corresponding refrigerant flow layer. Due to the limitation of the baffle 15, the refrigerant liquid can only be discharged from the liquid outlet of the top plate 2 through the liquid outlet pipe 16 and enter the external system.

[0039] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. The plug-in multi-channel plate heat exchanger is characterized by: It includes a base plate, a top plate, several 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 plate 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 flow layer is respectively connected to the heat flow liquid inlet channel and the heat flow liquid outlet channel; A first flow-blocking refrigerant shell is provided between the top refrigerant shell and the bottom refrigerant shell, and the refrigerant liquid inlet of the first flow-blocking refrigerant shell is closed, so that the refrigerant liquid inlet channel is divided into an upper refrigerant liquid inlet channel and a lower refrigerant liquid inlet channel; A second flow-blocking refrigerant shell is provided between the first flow-blocking refrigerant shell and the refrigerant shell at the bottom, and a baffle is provided at the refrigerant outlet of the second flow-blocking refrigerant shell, and the baffle divides the refrigerant inlet channel into an upper refrigerant outlet channel and a lower refrigerant outlet channel; A liquid outlet pipe is provided in the upper refrigerant liquid outlet channel, and an annular flow channel is formed between the liquid outlet pipe and the upper refrigerant liquid outlet channel. The upper end of the liquid outlet pipe is connected to the liquid outlet of the top plate, and the baffle has an annular hole. The lower end of the liquid outlet pipe passes through the annular hole and extends into the lower refrigerant liquid outlet channel.

2. The in-tube multi-channel plate 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. The in-tube multi-channel plate heat exchanger according to claim 2, characterized in that: Both sides of the base plate are connected with fixed support plates.

4. The in-tube multi-channel plate heat exchanger according to claim 3 is characterized in that: The refrigerant shell and the heat flow shell are both provided with a refrigerant inlet, a refrigerant outlet, a heat exchange inlet and a heat exchange 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 exchange inlets, and a heat flow outlet channel is formed between the heat exchange outlets.

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