A gravity heat pipe heat exchanger

Abstract

The utility model discloses a gravity heat pipe heat exchanger, including two fin big groups and a collection pipe, two fin big groups form V shape, and the collection pipe is located at the same side of two fin big groups and is communicated with two fin big groups, and each fin big group includes several columns fin small groups, and each fin small group is by several transverse fins stacking extrusion fixed, and each fin big group most outside two fin small groups all have heat exchange pipe, and in each fin big group, the water baffle of vertical is connected in the adjacent two fin small groups, and the most outside fin small group on the collection pipe side is communicated through the water baffle branch pipe and the collection pipe.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat exchangers for computer room air conditioning, and specifically relates to a gravity heat pipe heat exchanger. Background Technology

[0002] Room-level heat pipe air conditioner heat exchangers typically use microchannel heat exchangers or finned heat exchangers as heat exchange components. A fan is placed at the top or bottom, and the refrigerant flows in the heat exchange tubes and the fan blows air to remove indoor heat and achieve cooling.

[0003] The supply and return air direction is vertical. When using a finned heat exchanger, due to the characteristics of the heat pipe, the heat exchange pipe needs to be arranged in the vertical direction, which means that the aluminum fins must be in the horizontal direction. This makes it difficult for condensate to be discharged, and there is a risk of water blowing under certain operating conditions. Therefore, it is urgent to improve this. Summary of the Invention

[0004] To address the problem of condensate drainage difficulties caused by horizontal fins, this invention provides a gravity heat pipe heat exchanger.

[0005] The gravity heat pipe heat exchanger of this utility model includes two large fin groups and a manifold. The two large fin groups form a V shape. The manifold is located on the same side of the two large fin groups and is connected to the two large fin groups. Each large fin group includes several rows of small fin groups. Each small fin group is made up of several horizontally stacked and compressed fins. The two outermost small fin groups of each large fin group have heat exchange tubes. A vertical water-blocking fin is connected between two adjacent small fin groups in each large fin group. The outermost small fin group located on the side of the manifold is connected to the manifold through a water-blocking branch pipe.

[0006] Furthermore, one end of the water-blocking branch pipe is connected to the collecting pipe, and the other end is connected to the heat exchange pipe.

[0007] Furthermore, the water-blocking branch pipe is connected to the manifold and the heat exchange pipe by welding.

[0008] Furthermore, the water-blocking branch pipe is connected to the lowest end of the heat exchange tube.

[0009] Beneficial effects: This gravity heat pipe heat exchanger is simple to process, uses universal molds, and has low processing costs. The horizontal fins (heat exchange fins) and water-blocking fins are made from the same mold, with functional differences achieved through horizontal and vertical arrangement. The water-blocking fins, by utilizing their vertical characteristics, draw water from the horizontal fins and allow it to flow down for drainage, preventing water accumulation and subsequent water blowing. Moreover, the water-blocking fins themselves function as heat exchangers and can be completed during the heat exchanger manufacturing process, reducing the workload of subsequent secondary processing. Because the water-blocking branch pipe is connected to the manifold, the refrigerant flows upward due to the heat pipe effect, thus also serving a heat exchange and cooling function. By connecting one end of the water-blocking branch pipe to the manifold and the other end to the heat exchange tube on the fin assembly, refrigerant flow is achieved, resulting in heat exchange and cooling. By welding the water-blocking branch pipe between the manifold and the heat exchange tube, the stability of the device is improved. By connecting the water-blocking branch pipe to the bottom of the heat exchange tube, better heat exchange and cooling are achieved as the refrigerant flows upward. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the gravity heat pipe heat exchanger of this utility model; In the diagram, 1 is the manifold; 2 is the transverse fin; 3 is the water-blocking fin; 4 is the water-blocking branch pipe; and 5 is the heat exchange tube. Detailed Implementation

[0011] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0012] like Figure 1 As shown, a gravity heat pipe heat exchanger includes two large fin groups and a manifold 1. The two large fin groups form a V-shape. The manifold 1 is located on the same side of the two large fin groups and communicates with them. Each large fin group includes several rows of small fin subgroups. Each small fin subgroup is formed by several horizontally stacked and compressed fins 2. The two outermost small fin subgroups of each large fin group have heat exchange tubes 5. Within each large fin group, a vertical water-blocking fin 3 is connected between two adjacent small fin subgroups. The outermost small fin subgroups located on the manifold 1 side are connected to the manifold 1 via a water-blocking branch pipe 4. One end of the water-blocking branch pipe 4 is connected to the manifold 1, and the other end is connected to the heat exchange tubes 5.

[0013] The aforementioned water-blocking branch pipe 4 is welded between the manifold 1 and the heat exchange tube 5 on the finned assembly. The water-blocking branch pipe 4 is connected to the lowest end of the heat exchange tube 5 and mainly serves to facilitate the flow of refrigerant. It should be noted that since the water-blocking branch pipe 4 is connected to the manifold 1, the refrigerant will flow upward due to the heat pipe effect, thus playing a certain role in heat exchange and cooling. Compared with a simple water-blocking fin, the water-blocking branch pipe 4 also has the function of heat exchange.

[0014] The horizontal fin 2 (heat exchange fin) and the heat exchange tube 5, and the water baffle branch pipe 4 and the water baffle fin 3 are all connected together by an interference fit after tube expansion. The function of the horizontal fin 2 is to carry away heat after contacting the air. The function of the water baffle fin 3 is to draw out the water on the horizontal fin 2 and let it flow down through the vertical characteristics of its own fins, so as to avoid the accumulation of water and the resulting water blowing.

[0015] Unless otherwise specified, all technologies mentioned above refer to existing technologies.

[0016] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification.

Claims

1. A gravity heat pipe heat exchanger, comprising two large fin groups and a manifold, the two large fin groups forming a V-shape, the manifold located on the same side of the two large fin groups and communicating with them, each large fin group comprising several rows of small fin groups, each small fin group consisting of several transversely stacked and compressed fins, the outermost two small fin groups of each large fin group each having a heat exchange tube, characterized in that... Within each fin group, a vertical water-blocking fin is connected between two adjacent fin subgroups. The outermost fin group located on the side of the manifold is connected to the manifold via a water-blocking branch pipe.

2. The gravity heat pipe heat exchanger according to claim 1, characterized in that, One end of the water-blocking branch pipe is connected to the collecting pipe, and the other end is connected to the heat exchange pipe.

3. The gravity heat pipe heat exchanger according to claim 2, characterized in that, The water-blocking branch pipe is connected to the manifold and the heat exchange pipe by welding.

4. The gravity heat pipe heat exchanger according to claim 3, characterized in that, The water-blocking branch pipe is connected to the bottom of the heat exchange tube.

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