Novel plate heat exchanger

Abstract

The utility model discloses a novel plate heat exchanger, which belongs to the technical field of heat exchangers and comprises a box. The plurality of hot air heat exchange core bodies are arranged in the box body so as to fill a hot runner in the box body; the multiple cold air heat exchange core bodies are arranged in the box body so as to fill a cold runner in the box body, and the multiple cold air heat exchange core bodies and the multiple hot air heat exchange core bodies are sequentially arranged in a stacked and staggered mode so that the flowing direction of hot side fluid of the hot air heat exchange core bodies can correspond to the hot air inlet and outlet of the box body; the flowing direction of the cold side fluid of the cold air heat exchange core body corresponds to the cold air inlet and outlet of the box body; the partition plate comprises a plurality of first micro-channel heat pipes which are connected in sequence; the first micro-channel heat pipe is arranged between the cold air heat exchange core body and the hot air heat exchange core body and connected with the cold air heat exchange core body and the hot air heat exchange core body. The length direction of the first micro-channel heat pipes is perpendicular to the flowing direction of cold side fluid of the cold air heat exchange core body.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and specifically relates to a novel plate heat exchanger. Background Art

[0002] Plate heat exchanger is a kind of high-efficiency heat exchanger made of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Plate heat exchanger is an ideal equipment for liquid-liquid and liquid-steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application and long service life. Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of tubular heat exchanger, and the footprint is one-third of that of tubular heat exchanger, and the heat recovery rate can be as high as 90% or more.

[0003] At present, the traditional gas-gas plate heat exchanger has a single heat exchange mode, and the heat exchange efficiency is lower than the countercurrent heat exchange efficiency, and the heat loss is large. Utility Model Content

[0004] In order to solve the above problems, the utility model adopts the following technical solutions:

[0005] A novel plate heat exchanger, comprising:

[0006] Box;

[0007] A plurality of hot air heat exchange cores, wherein the plurality of hot air heat exchange cores are arranged in the box body to fill the hot runner in the box body;

[0008] A plurality of cold air heat exchange cores, which are arranged in the box to fill the cold flow channel in the box, and are stacked and staggered with the plurality of hot air heat exchange cores in sequence, so that the flow direction of the hot side fluid of the hot air heat exchange core corresponds to the hot air inlet and outlet of the box, and the flow direction of the cold side fluid of the cold air heat exchange core corresponds to the cold air inlet and outlet of the box;

[0009] A plurality of partitions are arranged in the box at intervals; the partitions include a plurality of first microchannel heat pipes connected in sequence; the first microchannel heat pipes are arranged between the cold air heat exchange core and the hot air heat exchange core, and are respectively connected to the cold air heat exchange core and the hot air heat exchange core; the length direction of the first microchannel heat pipe is perpendicular to the flow direction of the cold side fluid of the cold air heat exchange core.

[0010] Furthermore, the hot air heat exchange core includes a plurality of second microchannel heat pipes connected in sequence; the plurality of second microchannel heat pipes are arranged between two first microchannel heat pipes which are arranged perpendicular to the flow direction of the cold side fluid and at intervals, and the two side walls of the second microchannel heat pipe arranged between two adjacent partitions are respectively connected to the two first microchannel heat pipes; the flow direction of the hot side fluid of the second microchannel heat pipe is arranged along the length direction of the first microchannel heat pipe.

[0011] Furthermore, the cold air heat exchange core includes a plurality of third microchannel heat pipes connected in sequence; the plurality of third microchannel heat pipes are arranged between two first microchannel heat pipes that are perpendicular to the flow direction of the cold side fluid and are spaced apart, and the two side walls of the third microchannel heat pipe arranged between two adjacent partitions are respectively connected to the two first microchannel heat pipes; the third microchannel heat pipe and the second microchannel heat pipe are stacked and staggered in sequence along the normal direction of the first microchannel heat pipe; the flow direction of the cold side fluid of the third microchannel heat pipe is perpendicular to the flow direction of the hot side fluid of the second microchannel heat pipe.

[0012] Furthermore, a hot air inlet is arranged on the first side wall of the box body, a hot air outlet is arranged on the second side wall, a cold air inlet is arranged on the third side wall, and a cold air outlet is arranged on the fourth side wall; the first side wall and the second side wall are arranged opposite to each other and correspond to the hot air heat exchange core, so that the hot measuring fluid passes through the hot air inlet, the hot air heat exchange core, and the hot air outlet in sequence; the third side wall and the fourth side wall are arranged opposite to each other and correspond to the cold air heat exchange core, so that the cold measuring fluid passes through the cold air inlet, the cold air heat exchange core, and the cold air outlet in sequence.

[0013] Furthermore, the second microchannel heat pipe is a finned tube to partially or fully fill each hot runner; the third microchannel heat pipe is a finned tube to partially or fully fill each cold runner.

[0014] Furthermore, the second microchannel heat pipe is a square fin tube or a W-shaped fin tube.

[0015] Furthermore, the third microchannel heat pipe is a square fin tube or a W-shaped fin tube. Beneficial Effects

[0016] The utility model provides a novel plate heat exchanger, which adopts a microchannel heat pipe array as a partition of the plate heat exchanger. Through the super thermal conductivity characteristics of the microchannel heat pipe array, the heat exchange capacity of the fluid on both sides of the low temperature zone is greatly improved, and the heat exchange characteristics and heat exchange efficiency of the heat exchanger are improved as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the new plate heat exchanger of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall structure of the new plate heat exchanger of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 3 It is a schematic diagram of the connection between the hot air heat exchange core, the partition and the cold air heat exchange core of the new plate heat exchanger of the utility model;

[0020] Figure 4 It is an exploded view of the hot air heat exchange core, the partition and the cold air heat exchange core of the novel plate heat exchanger of the utility model;

[0021] Figure 5 It is a side view of the partition of the novel plate heat exchanger of the utility model;

[0022] Among them, 1. box body; 2. cold air heat exchange core; 3. hot air heat exchange core; 4. partition; 5. cold air outlet; 6. cold air inlet; 7. first microchannel heat pipe; 8. second microchannel heat pipe; 9. third microchannel heat pipe; 10. hot air outlet; 11. hot air inlet. DETAILED DESCRIPTION

[0023] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below.

[0024] Example 1

[0025] Reference Figures 1 to 5 , a new type of plate heat exchanger, comprising:

[0026] Box 1;

[0027] A plurality of hot air heat exchange cores 3, wherein the plurality of hot air heat exchange cores 3 are arranged in the box body 1 to fill the hot runner in the box body 1;

[0028] A plurality of cold air heat exchange cores 2 are arranged in the box body 1 to fill the cold flow channel in the box body 1, and are stacked and staggered with a plurality of hot air heat exchange cores 3 in sequence, so that the flow direction of the hot side fluid of the hot air heat exchange core 3 corresponds to the hot air inlet and outlet of the box body 1, and the flow direction of the cold side fluid of the cold air heat exchange core 2 corresponds to the cold air inlet and outlet of the box body 1;

[0029] A plurality of partitions 4 are arranged at intervals in the box body 1; the partitions 4 include a plurality of first microchannel heat pipes 7 connected in sequence; the plurality of first microchannel heat pipes 7 connected in sequence are arranged between the cold air heat exchange core 2 and the hot air heat exchange core 3, and are respectively connected to the cold air heat exchange core 2 and the hot air heat exchange core 3; the length direction of the first microchannel heat pipe 7 is perpendicular to the flow direction of the cold side fluid of the cold air heat exchange core 2.

[0030] In this embodiment, the hot air heat exchange core 3 includes a plurality of second microchannel heat pipes 8 connected in sequence; the plurality of second microchannel heat pipes 8 connected in sequence are arranged between two first microchannel heat pipes 7 which are arranged perpendicular to the flow direction of the cold side fluid and are spaced apart, and the two side walls of the second microchannel heat pipe 8 arranged between two adjacent partitions are respectively connected to the two first microchannel heat pipes 7; the flow direction of the hot side fluid of the second microchannel heat pipe 8 is arranged along the length direction of the first microchannel heat pipe 7.

[0031] In this embodiment, the cold air heat exchange core 2 includes a plurality of third microchannel heat pipes 9 connected in sequence; the plurality of third microchannel heat pipes 9 connected in sequence are arranged between two first microchannel heat pipes 7 which are arranged perpendicular to the flow direction of the cold side fluid and are spaced apart, and the two side walls of the third microchannel heat pipe 9 arranged between two adjacent partitions are respectively connected to the two first microchannel heat pipes 7; the third microchannel heat pipe 9 and the second microchannel heat pipe 8 are stacked and staggered in sequence along the normal direction of the first microchannel heat pipe 7; the flow direction of the cold side fluid of the third microchannel heat pipe 9 is perpendicular to the flow direction of the hot side fluid of the second microchannel heat pipe 8.

[0032] In this embodiment, a hot air inlet 11 is provided on the first side wall of the box body 1, a hot air outlet 10 is provided on the second side wall, a cold air inlet 6 is provided on the third side wall, and a cold air outlet 5 is provided on the fourth side wall; the first side wall and the second side wall are arranged opposite to each other and correspond to the hot air heat exchange core 3, so that the hot measuring fluid passes through the hot air inlet 11, the hot air heat exchange core 3, and the hot air outlet 10 in sequence; the third side wall and the fourth side wall are arranged opposite to each other and correspond to the cold air heat exchange core 2, so that the cold measuring fluid passes through the cold air inlet 6, the cold air heat exchange core 2, and the cold air outlet 5 in sequence.

[0033] Through the above technical solution, such as Figure 2As shown, the flow direction of the hot side fluid of the hot air heat exchange core 3 is consistent with the axial arrangement direction of the microchannel heat pipe. The hot side fluid enters from the hot air inlet 11 and passes through the hot air heat exchange core 3, and flows out from the hot air outlet 10, entering from the left and exiting from the right; the flow direction of the cold side fluid of the cold air heat exchange core 2 is perpendicular to the length direction of the microchannel heat pipe. The cold side fluid enters from the cold air inlet 6 and passes through the cold air heat exchange core 2, and flows out from the cold air outlet 5, entering from the bottom and exiting from the top; the two side parts of the cold and hot fluid flow channel of the cold air heat exchange core 2 and the two side parts of the hot air heat exchange core 3 are respectively connected through the partition 4 (a plurality of first microchannel heat pipes 7 are connected in sequence) to form mutually unconnected hot and cold flow channels, and form a cross total cold and hot fluid inlet.

[0034] In this embodiment, the second microchannel heat pipe 8 is a finned tube to partially or fully fill each hot runner; the third microchannel heat pipe 9 is a finned tube to partially or fully fill each cold runner.

[0035] In this embodiment, the second microchannel heat pipe 8 is a square fin tube or a W-shaped fin tube.

[0036] In this embodiment, the third microchannel heat pipe 9 is a square fin tube or a W-shaped fin tube.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A new type of plate heat exchanger, characterized in that: include: Box; A plurality of hot air heat exchange cores, wherein the plurality of hot air heat exchange cores are arranged in the box body to fill the hot runner in the box body; A plurality of cold air heat exchange cores, which are arranged in the box to fill the cold flow channel in the box, and are stacked and staggered with the plurality of hot air heat exchange cores in sequence, so that the flow direction of the hot side fluid of the hot air heat exchange core corresponds to the hot air inlet and outlet of the box, and the flow direction of the cold side fluid of the cold air heat exchange core corresponds to the cold air inlet and outlet of the box; A plurality of partitions are arranged in the box at intervals; the partitions include a plurality of first microchannel heat pipes connected in sequence; the first microchannel heat pipes are arranged between the cold air heat exchange core and the hot air heat exchange core, and are respectively connected to the cold air heat exchange core and the hot air heat exchange core; the length direction of the first microchannel heat pipe is perpendicular to the flow direction of the cold side fluid of the cold air heat exchange core.

2. The novel plate heat exchanger according to claim 1 is characterized in that: The hot air heat exchange core includes a plurality of second microchannel heat pipes connected in sequence; the plurality of second microchannel heat pipes are arranged between two first microchannel heat pipes which are arranged perpendicular to the flow direction of the cold side fluid and are spaced apart, and the two side walls of the second microchannel heat pipe arranged between two adjacent partitions are respectively connected to the two first microchannel heat pipes correspondingly; the flow direction of the hot side fluid of the second microchannel heat pipe is arranged along the length direction of the first microchannel heat pipe.

3. The novel plate heat exchanger according to claim 2 is characterized in that: The cold air heat exchange core comprises a plurality of third microchannel heat pipes connected in sequence; the plurality of third microchannel heat pipes are arranged between two first microchannel heat pipes which are arranged perpendicular to the flow direction of the cold side fluid and spaced apart, and the two side walls of the third microchannel heat pipe arranged between two adjacent partitions are respectively connected to the two first microchannel heat pipes correspondingly; the third microchannel heat pipe and the second microchannel heat pipe are overlapped and staggered in sequence along the normal direction of the first microchannel heat pipe; the flow direction of the cold side fluid of the third microchannel heat pipe is perpendicular to the flow direction of the hot side fluid of the second microchannel heat pipe.

4. The novel plate heat exchanger according to claim 3 is characterized in that: A hot air inlet is arranged on the first side wall of the box body, a hot air outlet is arranged on the second side wall, a cold air inlet is arranged on the third side wall, and a cold air outlet is arranged on the fourth side wall; the first side wall and the second side wall are arranged opposite to each other and correspond to the hot air heat exchange core, so that the hot measuring fluid passes through the hot air inlet, the hot air heat exchange core, and the hot air outlet in sequence; the third side wall and the fourth side wall are arranged opposite to each other and correspond to the cold air heat exchange core, so that the cold measuring fluid passes through the cold air inlet, the cold air heat exchange core, and the cold air outlet in sequence.

5. The novel plate heat exchanger according to claim 3 is characterized in that: The second microchannel heat pipe is a finned tube to partially fill or fully fill each hot runner; the third microchannel heat pipe is a finned tube to partially fill or fully fill each cold runner.

6. The novel plate heat exchanger according to claim 5 is characterized in that: The second microchannel heat pipe is a square fin tube or a W-shaped fin tube.

7. The novel plate heat exchanger according to claim 5 is characterized in that: The third microchannel heat pipe is a square fin tube or a W-shaped fin tube.

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