Multi-channel nested tubular graphite heat exchange device

Abstract

The utility model relates to the technical field of graphite heat exchangers, and discloses a multi-channel nested tubular graphite heat exchange device which is characterized in that the top of a supporting plate is fixedly connected with a heat exchanger body, the left side of the top of the heat exchanger body is fixedly connected with a high-temperature liquid inlet pipe, and the right side of the bottom of the heat exchanger body is fixedly connected with a high-temperature liquid outlet pipe; a cooling mechanism is arranged on the inner side of the heat exchanger body, a filtering mechanism is arranged at the top of the heat exchanger body, the cooling mechanism comprises a supporting disc, the supporting disc is fixedly connected into the heat exchanger body, an outer graphite pipe is fixedly connected to the inner side of the supporting disc, and a middle-layer graphite pipe is fixedly connected into the outer graphite pipe. Circulating water is evenly distributed among all layers of pipes due to the arrangement of the splitter plates, comprehensiveness and uniformity of heat exchange are guaranteed, compared with a traditional single-channel heat exchanger, the multi-channel and multi-layer nested structural design can improve the heat exchange efficiency, and the requirement for efficient heat exchange in industrial production is effectively met.

Description

Technical Field

[0001] This utility model relates to the field of graphite heat exchanger technology, specifically a multi-channel nested tube graphite heat exchange device. Background Technology

[0002] Tubular graphite heat exchangers are widely used in industrial fields as a highly efficient and corrosion-resistant heat exchange device. A tubular graphite heat exchanger mainly consists of graphite tubes and a shell. The graphite tubes are the core heat exchange component; they possess extremely high thermal conductivity, enabling rapid heat transfer, and exhibit strong chemical stability, allowing them to withstand various corrosive media.

[0003] A graphite heat exchanger disclosed in CN 220454383 U, by setting a support component, can prevent the stabilizing mechanism from moving when the graphite heat exchanger body is removed from the inside of the stabilizing mechanism, thereby facilitating the removal of the graphite heat exchanger body.

[0004] This graphite heat exchanger, by setting up a support component, can prevent the stabilizing mechanism from moving when the graphite heat exchanger body is removed from the inside of the stabilizing mechanism. However, the device uses a single-channel heat exchanger. The heat exchange area of ​​a traditional single-channel heat exchanger is limited, and the heat exchange efficiency is difficult to meet the needs of large-scale, high-intensity industrial production. Therefore, it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a multi-channel nested tubular graphite heat exchanger to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-channel nested tube graphite heat exchanger, including a support plate, a heat exchanger body fixedly connected to the top of the support plate, a high-temperature liquid inlet pipe fixedly connected to the top left side of the heat exchanger body, a high-temperature liquid outlet pipe fixedly connected to the bottom right side of the heat exchanger body, a cooling mechanism provided inside the heat exchanger body, and a filtration mechanism provided at the top of the heat exchanger body.

[0007] The cooling mechanism includes a support plate, which is fixedly connected to the inside of the heat exchanger body. An outer graphite tube is fixedly connected to the inner side of the support plate. A middle graphite tube is fixedly connected to the inside of the outer graphite tube. An inner graphite tube is fixedly connected to the inside of the middle graphite tube. A flow divider is fixedly connected to the inside of the outer graphite tube. A circulating water inlet pipe is fixedly connected to the top of the flow divider. The circulating water inlet pipe is fixedly connected to the top of the heat exchanger body. A circulating water drain pipe is fixedly connected to the top of the heat exchanger body. A sealing plate is fixedly connected to the outer periphery of the inner graphite tube. The sealing plate is fixedly connected to the left and right sides inside the heat exchanger body.

[0008] Preferably, there are two diversion plates, which are fixedly connected to the outer graphite tube and the middle graphite tube on the left and right sides respectively. The circulating water drain pipe is fixedly connected to the top of the right diversion plate. The diversion plates can connect the outer graphite tube and the middle graphite tube, so that the circulating water can flow into the outer graphite tube and the middle graphite tube to exchange heat with the high-temperature liquid inside the inner graphite tube.

[0009] Preferably, the sealing disc is fixedly connected to the inner side of the outer graphite tube and the middle graphite tube. The sealing disc can seal the outer graphite tube and the middle graphite tube, making it difficult for the high-temperature liquid inside the inner graphite tube to enter the outer graphite tube and the middle graphite tube.

[0010] Preferably, circular grooves with equal spacing are provided between the outer graphite tube, the middle graphite tube, and the inner graphite tube. Through the circular grooves, circulating water can enter the circular groove between the inner graphite tube and the middle graphite tube to exchange heat with the high-temperature liquid inside the inner graphite tube.

[0011] Preferably, the filtration mechanism includes a fixed box, which is fixedly connected to the top of the heat exchanger body and the top of the circulating water inlet pipe. A fixed plate is fixedly connected to the bottom front of the fixed box, a cylinder is fixedly connected to the bottom of the fixed plate, a lifting plate is fixedly connected to the top of the cylinder, a connecting strip is fixedly connected to the top of the lifting plate, a linkage plate is fixedly connected to the top of the connecting strip, a sliding rod is fixedly connected to the bottom of the linkage plate, a cleaning brush is fixedly connected to the bottom of the sliding rod, a filter plate is slidably connected to the inside of the fixed box, a sealing plate is fixedly connected to the top of the filter plate, a bolt is threadedly connected to the inside of the sealing plate, the bolt is threadedly connected to the inside of the fixed box, and a sealing block is slidably connected to the outside of the sliding rod, and the sealing block is fixedly connected to the top of the inside of the fixed box.

[0012] Preferably, there are two fixing plates, cylinders, lifting plates, and connecting strips. The two fixing plates are fixedly connected to the bottom of the front and rear sides of the fixing box, respectively. By setting the fixing plates, the cylinder can be supported, making the cylinder more stable when in use.

[0013] Preferably, the inner side of the fixed box is provided with a sliding groove corresponding to the position of the filter plate, and the filter plate is slidably connected to the inside of the sliding groove. Through the sliding groove, the filter plate can slide out from the inside of the fixed box, making it convenient for staff to disassemble and clean the filter plate.

[0014] Preferably, the cleaning brush is located on the right side of the filter plate, and the right side of the cleaning brush is in close contact with the left side of the filter plate. The cleaning brush can clean the filter plate, making it less prone to clogging.

[0015] Compared with the prior art, this utility model provides a multi-channel nested tube graphite heat exchanger, which has the following advantages:

[0016] 1. This multi-channel nested tubular graphite heat exchanger, with its multi-layered nested structure of outer graphite tubes, middle graphite tubes, and inner graphite tubes, significantly increases the heat exchange area. The hot fluid flows from the high-temperature liquid inlet pipe into the inner graphite tube, and the heat is transferred sequentially through the inner graphite tube, middle graphite tube, and then to the outer graphite tube. It fully exchanges heat with the circulating water flowing between the outer and middle graphite tubes, and between the middle and inner graphite tubes. The distribution plate ensures that the circulating water is evenly distributed between the tube layers, guaranteeing the comprehensiveness and uniformity of heat exchange. Compared with traditional single-channel heat exchangers, the multi-channel, multi-layered nested structure design improves heat exchange efficiency and effectively meets the demand for high-efficiency heat exchange in industrial production.

[0017] 2. This multi-channel nested tubular graphite heat exchanger features a filter plate inside the fixed box that effectively filters impurities in the circulating water, preventing them from entering the cooling mechanism and avoiding blockage or wear on the graphite tubes, thus extending the device's service life. A cylinder-driven cleaning brush periodically cleans the filter plate, maintaining its permeability and ensuring consistent filtration. When the cylinder starts, it moves the lifting plate, connecting strip, linkage plate, and cleaning brush up and down. The cleaning brush adheres to the filter plate surface, brushing off impurities, ensuring the cleanliness of the circulating water and maintaining the device's efficient and stable heat exchange performance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view structural diagram of the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of the heat exchanger body.

[0021] Figure 3 A schematic diagram of the structure of the middle layer graphite tube, the inner graphite tube, and the circulating water drainage pipe;

[0022] Figure 4 This is a schematic diagram of the filter mechanism.

[0023] Figure 5 This is a schematic diagram of the sealing block structure.

[0024] In the diagram: 1. Support plate; 2. Heat exchanger body; 3. High-temperature liquid inlet pipe; 4. Filtration mechanism; 41. Fixing box; 42. Fixing plate; 43. Cylinder; 44. Lifting plate; 45. Connecting strip; 46. Cleaning brush; 47. Linkage plate; 48. Slide rod; 49. Filter plate; 401. Sealing plate; 402. Bolt; 403. Sealing block; 5. Cooling mechanism; 51. Outer graphite tube; 52. Sealing disc; 53. Support disc; 54. Diverter plate; 55. Middle layer graphite tube; 56. Inner graphite tube; 57. Circulating water inlet pipe; 58. Circulating water outlet pipe; 6. High-temperature liquid outlet pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] This utility model provides the following technical solution:

[0028] Example 1

[0029] Please see Figure 1-5 The present invention provides a technical solution: a multi-channel nested tube graphite heat exchanger, including a support plate 1, a heat exchanger body 2 fixedly connected to the top of the support plate 1, a high-temperature liquid inlet pipe 3 fixedly connected to the top left side of the heat exchanger body 2, a high-temperature liquid outlet pipe 6 fixedly connected to the bottom right side of the heat exchanger body 2, a cooling mechanism 5 provided inside the heat exchanger body 2, and a filter mechanism 4 provided at the top of the heat exchanger body 2.

[0030] The cooling mechanism 5 includes a support plate 53, which is fixedly connected to the inside of the heat exchanger body 2. An outer graphite tube 51 is fixedly connected to the inside of the support plate 53. A middle graphite tube 55 is fixedly connected to the inside of the outer graphite tube 51. An inner graphite tube 56 is fixedly connected to the inside of the middle graphite tube 55. A flow divider plate 54 is fixedly connected to the inside of the outer graphite tube 51. A circulating water inlet pipe 57 is fixedly connected to the top of the flow divider plate 54. The circulating water inlet pipe 57 is fixedly connected to the top of the heat exchanger body 2. A circulating water drain pipe 58 is fixedly connected to the top of the heat exchanger body 2. A sealing plate 52 is fixedly connected to the outside of the inner graphite tube 56. The sealing plate 52 is fixedly connected to the left and right sides inside the heat exchanger body 2.

[0031] Furthermore, there are two diversion plates 54, which are fixedly connected to the outer graphite tube 51 and the middle graphite tube 55 on the left and right sides respectively. The circulating water drain pipe 58 is fixedly connected to the top of the right diversion plate 54. The diversion plates 54 can connect the outer graphite tube 51 and the middle graphite tube 55, so that the circulating water can flow into the outer graphite tube 51 and the middle graphite tube 55 to exchange heat with the high-temperature liquid inside the inner graphite tube 56.

[0032] Furthermore, the sealing disc 52 is fixedly connected to the inner side of the outer graphite tube 51 and the middle graphite tube 55. The sealing disc 52 can seal the outer graphite tube 51 and the middle graphite tube 55, making it difficult for the high-temperature liquid inside the inner graphite tube 56 to enter the outer graphite tube 51 and the middle graphite tube 55.

[0033] Furthermore, circular grooves with equal spacing are provided between the outer graphite tube 51, the middle graphite tube 55, and the inner graphite tube 56. Through these circular grooves, circulating water can enter the circular groove between the inner graphite tube 56 and the middle graphite tube 55 to exchange heat with the high-temperature liquid inside the inner graphite tube 56.

[0034] Example 2

[0035] Please see Figure 1-5Furthermore, based on Embodiment 1, the filtration mechanism 4 further includes a fixed box 41, which is fixedly connected to the top of the heat exchanger body 2 and the top of the circulating water inlet pipe 57. A fixed plate 42 is fixedly connected to the bottom front of the fixed box 41, a cylinder 43 is fixedly connected to the bottom of the fixed plate 42, a lifting plate 44 is fixedly connected to the top of the cylinder 43, a connecting strip 45 is fixedly connected to the top of the lifting plate 44, a linkage plate 47 is fixedly connected to the top of the connecting strip 45, a sliding rod 48 is fixedly connected to the bottom of the linkage plate 47, a cleaning brush 46 is fixedly connected to the bottom of the sliding rod 48, a filter plate 49 is slidably connected to the inside of the fixed box 41, a sealing plate 401 is fixedly connected to the top of the filter plate 49, a bolt 402 is threadedly connected to the inside of the sealing plate 401, and a sealing block 403 is slidably connected to the outside of the sliding rod 48. The sealing block 403 is fixedly connected to the top inside the fixed box 41.

[0036] Furthermore, there are two fixing plates 42, cylinder 43, lifting plate 44 and connecting strip 45. The two fixing plates 42 are fixedly connected to the bottom of the front and rear sides of the fixing box 41 respectively. By setting the fixing plates 42, the cylinder 43 can be supported, making the cylinder 43 more stable when in use.

[0037] Furthermore, a sliding groove corresponding to the position of the filter plate 49 is provided on the inner side of the fixed box 41, and the filter plate 49 is slidably connected to the inside of the sliding groove. Through the sliding groove, the filter plate 49 can slide out from the inside of the fixed box 41, making it convenient for staff to disassemble and clean the filter plate 49.

[0038] Furthermore, the cleaning brush 46 is located on the right side of the filter plate 49, and the right side of the cleaning brush 46 is in close contact with the left side of the filter plate 49. The cleaning brush 46 can clean the filter plate 49, making the filter plate 49 less prone to clogging.

[0039] In actual operation, when this device is in use, high-temperature liquid enters the heat exchanger body 2 through the high-temperature liquid inlet pipe 3, allowing the heat exchanger body 2 to enter the inner graphite tube 56. The circulating water flows inside the inner graphite tube 56, and the circulating water passes through the fixed box 41, allowing the filter plate 49 inside the fixed box 41 to filter the circulating water. The filtered circulating water enters the distribution plate 54 through the circulating water inlet pipe 57, allowing the distribution plate 54 to transfer the circulating water between the outer graphite tube 51 and the middle graphite tube 55, so that the circulating water can cool the high-temperature liquid inside the inner graphite tube 56. The cooled high-temperature liquid is discharged through the high-temperature liquid outlet pipe 6 on the bottom right side of the heat exchanger body 2, and the circulating water is discharged through the circulating water drain pipe 58.

[0040] When the filter plate 49 is slightly clogged, open the cylinder 43, which will drive the connecting bar 45 and the linkage plate 47 to move upward via the lifting plate 44. This will allow the linkage plate 47 to drive the cleaning brush 46 to move up and down via the slide rod 48, so that the cleaning brush 46 can clean the right side of the filter plate 49. When the filter plate 49 is severely clogged, turn the bolt 402 away from the inside of the fixed box 41, so that the staff can disassemble the filter plate 49 and make it convenient for the staff to clean and replace the filter plate 49.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A multi-channel nested tubular graphite heat exchanger, comprising a support plate (1), characterized in that: The support plate (1) is fixedly connected to the top of the heat exchanger body (2), the top left side of the heat exchanger body (2) is fixedly connected to the high temperature liquid inlet pipe (3), the bottom right side of the heat exchanger body (2) is fixedly connected to the high temperature liquid outlet pipe (6), the heat exchanger body (2) is provided with a cooling mechanism (5) inside, and the heat exchanger body (2) is provided with a filter mechanism (4) at the top. The cooling mechanism (5) includes a support plate (53), which is fixedly connected to the inside of the heat exchanger body (2). An outer graphite tube (51) is fixedly connected to the inside of the support plate (53). A middle graphite tube (55) is fixedly connected inside the outer graphite tube (51). An inner graphite tube (56) is fixedly connected inside the middle graphite tube (55). A flow divider plate (54) is fixedly connected inside the outer graphite tube (51). A circulating water inlet pipe (57) is fixedly connected to the top of the flow divider plate (54). The circulating water inlet pipe (57) is fixedly connected to the top of the heat exchanger body (2). A circulating water drain pipe (58) is fixedly connected to the top of the heat exchanger body (2). A sealing plate (52) is fixedly connected to the outside of the inner graphite tube (56). The sealing plate (52) is fixedly connected to the left and right sides inside the heat exchanger body (2).

2. The multi-channel nested tubular graphite heat exchanger according to claim 1, characterized in that: There are two diversion plates (54). The two diversion plates (54) are fixedly connected to the outer graphite tube (51) and the middle graphite tube (55) on the left and right sides respectively, and the circulating water drain pipe (58) is fixedly connected to the top of the right diversion plate (54).

3. The multi-channel nested tubular graphite heat exchanger according to claim 1, characterized in that: The sealing disc (52) is fixedly connected to the inner side of the outer graphite tube (51) and the middle graphite tube (55).

4. The multi-channel nested tubular graphite heat exchanger according to claim 1, characterized in that: Circular grooves with equal spacing are provided between the outer graphite tube (51), the middle graphite tube (55), and the inner graphite tube (56).

5. The multi-channel nested tubular graphite heat exchanger according to claim 1, characterized in that: The filtration mechanism (4) includes a fixed box (41), which is fixedly connected to the top of the heat exchanger body (2) and the top of the circulating water inlet pipe (57). A fixed plate (42) is fixedly connected to the bottom front of the fixed box (41), and a cylinder (43) is fixedly connected to the bottom of the fixed plate (42). A lifting plate (44) is fixedly connected to the top of the cylinder (43), and a connecting strip (45) is fixedly connected to the top of the lifting plate (44). A linkage plate (47) is fixedly connected to the top of the connecting strip (45). A sliding rod (48) is fixedly connected to the bottom of the linkage plate (47), and a cleaning brush (46) is fixedly connected to the bottom of the sliding rod (48). A filter plate (49) is slidably connected to the inside of the fixed box (41), and a sealing plate (401) is fixedly connected to the top of the filter plate (49). A bolt (402) is threadedly connected to the inside of the sealing plate (401), and the bolt (402) is threadedly connected to the inside of the fixed box (41). A sealing block (403) is slidably connected to the outside of the sliding rod (48), and the sealing block (403) is fixedly connected to the top of the fixed box (41).

6. The multi-channel nested tubular graphite heat exchanger according to claim 5, characterized in that: There are two of the fixed plate (42), cylinder (43), lifting plate (44) and connecting strip (45), and the two fixed plates (42) are respectively fixedly connected to the bottom of the front and rear sides of the fixed box (41).

7. The multi-channel nested tubular graphite heat exchanger according to claim 5, characterized in that: The inner side of the fixed box (41) is provided with a sliding groove corresponding to the position of the filter plate (49), and the filter plate (49) is slidably connected inside the sliding groove.

8. The multi-channel nested tubular graphite heat exchanger according to claim 5, characterized in that: The cleaning brush (46) is located on the right side of the filter plate (49), and the right side of the cleaning brush (46) is in contact with the left side of the filter plate (49).

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