Composite round block graphite heat exchanger

Abstract

The utility model relates to a combined type round block graphite heat exchanger which is characterized by comprising a plurality of graphite blocks and a heat dissipation plate, the graphite blocks and the heat dissipation plate are stacked in a staggered mode, a liquid cooling channel used for circulation of cooling liquid and provided with a runway-shaped cross section is arranged in the heat dissipation plate, and the graphite blocks are provided with a plurality of air channels in the vertical direction of the graphite blocks. The heat dissipation plate is provided with a connector used for being communicated with the air channels of the graphite blocks located on the upper side and the lower side of the heat dissipation plate, the plate face of the heat dissipation plate is further provided with a plurality of heat conduction fins, and the heat conduction fins are inserted into blind grooves in the end faces of the graphite blocks. The design that the heat dissipation plate is clamped between the two graphite blocks is utilized, a cooling pipeline does not need to be pre-buried in the graphite blocks, the process cost is reduced, assembling is easy, the heat conduction fins are integrated on the surface of the heat dissipation plate, the vertical heat conduction coefficient of the graphite blocks is increased through the heat conduction fins, and the overall heat conduction capacity of the graphite blocks is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to graphite heat dissipation technical field, especially a kind of composite round block graphite heat exchanger. BACKGROUND

[0002] As a kind of special heat-conducting material, graphite has very excellent high-temperature resistance.The working temperature range of graphite condenser can be as high as 3000 DEG C, which makes it perform particularly excellent in high-temperature environment.Currently, tower heat sink for high-temperature gas is mostly made of laminated round block graphite, and the thickness of the laminated round block graphite layer is relatively thick.The edge of the graphite is in contact with the tower body, and liquid cooling pipeline is embedded in the tower body to take away the heat conducted by the graphite.However, because the horizontal direction coefficient of graphite is very high, up to 2000 W / (m·K), but the vertical direction coefficient of heat conduction is only 5-20 W / (m·K), which leads to a problem, that is, the first contact with the lower layer of graphite block under high temperature, because the vertical direction coefficient of heat conduction is low, over time, under the action of corrosive gas and high-temperature gas, the lower end surface of the lower layer of graphite block may crack, resulting in increased application cost of graphite block, so it is necessary to improve the current laminated graphite block to enhance the vertical direction heat conduction capacity of the heat exchanger. SUMMARY

[0003] Therefore, it is necessary to provide a composite round block graphite heat exchanger to solve the above problems.

[0004] A composite round block graphite heat exchanger, characterized by comprising a plurality of graphite blocks and heat dissipation plates, the plurality of graphite blocks and heat dissipation plates are staggered and laminated, the heat dissipation plates are provided with liquid cooling channels in the form of runway cross section for flowing cooling liquid, the graphite blocks are provided with a plurality of air channels in the vertical direction thereof, the heat dissipation plates are provided with connecting heads for connecting the air channels of the graphite blocks on the upper and lower sides of the heat dissipation plates, and the heat dissipation plates are further provided with a plurality of heat conduction fins on the plate surface thereof, and the heat conduction fins are inserted into blind grooves in the end surface of the graphite blocks.

[0005] Preferably, the air path of the connecting head is in the form of S.

[0006] Preferably, the two ends of the connecting head are inserted into the air channels, and the two end ports of the connecting head are provided with sealing rings made of perfluorinated rubber.

[0007] Preferably, the heat conduction fins on the same plate surface of the heat dissipation plate are intermittent and staggered.

[0008] The utility model has the advantages that the design of clamping the heat dissipation plate between two graphite blocks does not need to pre-embed cooling pipeline in the graphite block, reduces the process cost, and is simple to assemble.The heat dissipation plate surface is integrated with heat conduction fins, which improves the vertical direction coefficient of heat conduction of the graphite block and improves the overall heat conduction capacity of the graphite block. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 A composite round block graphite heat exchanger is shown in the figure.

[0010] Fig. 2 A composite round block graphite heat exchanger is shown in the figure. DETAILED DESCRIPTION

[0011] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail in order to not unnecessarily obscure the present application.

[0012] It is to be understood that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element and one or more intervening elements can be present. Like numbers refer to like elements throughout. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0014] As Figs. 1-2As shown, a composite round graphite block heat exchanger comprises a plurality of graphite blocks 1 and heat dissipation plates 2, a plurality of graphite blocks 1 and heat dissipation plates 2 are staggered and stacked, the heat dissipation plate 2 is provided with a liquid cooling channel 21 with a runway-shaped cross section for circulating cooling liquid, the graphite block 1 is provided with a plurality of air channels 11 along the vertical direction thereof, the heat dissipation plate 2 is provided with a connecting head 22 for connecting the air channels 11 of the graphite blocks 1 on the upper and lower sides of the heat dissipation plate 2, and the surface of the heat dissipation plate 2 is further provided with a plurality of heat conduction fins 23 which are inserted into the blind grooves 12 at the end surface of the graphite block 1. Specifically, in this embodiment, the graphite block 1 has a round block shape, which is convenient to fill into the tower quenching tower, and the heat dissipation plate 2 is also designed in a round plate shape. One graphite block 1 and one heat dissipation plate 2 are staggered and stacked in sequence, and the heat dissipation plate 2 is hollow, the internal cross section is in a runway shape, and can be used to circulate cooling liquid to carry away the heat transferred by the graphite block 1. The runway-shaped heat dissipation plate 2 can effectively improve the extrusion resistance of the heat dissipation plate 2 itself, and the heat dissipation plate 2 is provided with a connecting head 22, which can be understood that the connecting head 22 and the channel in the heat dissipation plate 2 for circulating cooling liquid are disconnected, the connecting head 22 can connect the air channels 11 of the graphite blocks 2 on the upper and lower layers of the heat dissipation plate 2, so that the high-temperature gas can smoothly pass from bottom to top and gradually cool down layer by layer. In order to enhance the vertical heat conduction capacity between the graphite blocks 1, we use copper heat dissipation plate 2 to strengthen the vertical heat conduction coefficient of the graphite block 1, and set heat conduction fins 23 on the surface of the heat dissipation plate 2, which are inserted into the blind grooves 12 of the graphite block 1 one by one. The heat conduction fin 23 cooperates with the blind groove 12 to ensure the assembly accuracy of the heat dissipation plate 2 and the graphite block 1, avoid misalignment, the whole body is more reliable, and the copper heat conduction fin 23 can effectively improve the vertical heat conduction coefficient of the graphite block 1, and further improve the overall cooling performance of the graphite block 1 to the passing gas.

[0015] Specifically, the gas path of the connecting head 22 is in an S shape, which connects the air channels 11 of the graphite blocks 1 on the upper and lower layers of the heat dissipation plate 2, avoids the air channels 11 in a straight line, reduces the flow speed of the high-temperature gas in the air channels 11, and prolongs the residence time of the high-temperature gas in the graphite block 1 by reducing the gas flow rate, matches the horizontal heat conduction capacity of the graphite block 1, so that the heat is more fully transferred to the material surface of the graphite block 1, thereby improving the heat dissipation efficiency.

[0016] As shown in the figure Fig. 2 The two ends of the connecting head 22 are inserted into the air channel 11, and the two end ports of the connecting head 22 are provided with a sealing ring 23 made of perfluorinated rubber. The sealing ring 23 made of high-temperature resistant and corrosion-resistant material is used to airtight connect the gap between the connecting head 22 and the air channel 11, avoid the high-temperature gas leaking out along the gap, corrode the surface of the heat dissipation plate 2, and reduce the service life of the heat dissipation plate 2.

[0017] As shown in the figure Fig. 2As shown, the heat-conducting fins 23 on the same plate surface of the heat-dissipating plate 2 are discontinuous and staggered, and the heat-conducting fins 23 are inserted into the blind grooves 12 one by one, when the heat-conducting fins 23 are discontinuous and staggered, the blind grooves 12 are also discontinuous, avoiding that the blind grooves 12 vertically cut off the graphite block 1 completely, only through the edge and the heat-conducting fins 23 to conduct heat, resulting in that the horizontal heat-conducting performance of the graphite block 1 is reduced.

[0018] The above-mentioned embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A composite round block graphite heat exchanger, characterized in that: The graphite block and the heat dissipation plate are staggered and stacked, the heat dissipation plate is provided with a liquid cooling channel with a runway cross section for flowing cooling liquid, the graphite block is provided with a plurality of air channels along the vertical direction, the heat dissipation plate is provided with a connecting head for connecting the air channels of the graphite blocks on the upper and lower sides of the heat dissipation plate, and the heat dissipation plate is provided with a plurality of heat conduction fins on the plate surface.

2. The composite round block graphite heat exchanger according to claim 1, characterized in that: The air path of the connecting head is in an S shape.

3. The composite round block graphite heat exchanger according to claim 1, wherein: The two ends of the connecting head are inserted into the air channels, and the two end ports of the connecting head are provided with sealing rings made of perfluorinated rubber.

4. The composite round block graphite heat exchanger of claim 1, wherein: The heat conduction fins on the same plate surface of the heat dissipation plate are discontinuous and staggered.

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