Corrosion-resistant regenerated graphite cooler

Abstract

The utility model discloses a corrosion-resistant regenerated graphite cooler, which comprises a cylinder body, a first cooling chamber, a second cooling chamber and a backwash backflow mechanism, a mixing cylinder is arranged in the first cooling chamber, a graphite cooling block is arranged in the second cooling chamber, a heat collection sheet is attached to the outer wall of the mixing cylinder, and the backwash backflow mechanism is arranged on the outer wall of the mixing cylinder. A plurality of heat collecting fins are arranged on the inner wall of the barrel body, an annular water pipe is arranged on the inner wall of the barrel body, the annular water pipe is connected with a high-pressure spray head, the spraying range of the high-pressure spray head covers the heat dissipating fins, and rapid cooling of materials to be cooled is achieved by arranging the first cooling chamber; the graphite cooling block is used for carrying out secondary cooling on the materials, cooling efficiency is improved through step-by-step cooling, heat generated in the mixing barrel is concentrated on the heat dissipation fins by arranging the heat collection pieces and arranging the heat dissipation fins on the heat collection pieces, and the heat on the heat dissipation fins is taken away through the jetted high-speed fluid, so that rapid cooling is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphite coolers, and in particular relates to a corrosion-resistant regenerated graphite cooler. Background Art

[0002] According to its structure, graphite coolers can be divided into three types: block hole type, shell and tube type and plate type. Block hole graphite coolers are assembled from several block graphite components with holes. Shell and tube graphite coolers are shell and tube heat exchangers that occupy an important position in graphite heat exchangers. According to the structure, they are divided into fixed type and floating head type. Plate graphite coolers are made of graphite plates bonded together. In addition, there are immersion type, spray type and sleeve type. Graphite heat exchangers have good corrosion resistance, and the heat transfer surface is not easy to scale and has good heat transfer performance. However, graphite is easy to crack, and has low bending and tensile strength, so it can only be used for low pressure. Even with the best block hole structure with pressure bearing capacity, graphite is not only resistant to acid corrosion, but also has good thermal conductivity. The graphite core is made into a block hole structure separated from each other vertically and horizontally. When the two media pass through each other, the high-temperature medium continuously transfers heat to the graphite heat exchanger, and the low-temperature medium continuously obtains heat from the heat exchanger, thereby realizing heat exchange.

[0003] In the chemical industry, after the commonly used graphite cooler is used, some of the diluted acid will remain on the inner wall of the mixed acid chamber, causing erosion and corrosion to the inner wall of the mixed acid chamber, seriously affecting the service life of the equipment: dilution water needs to be added to dilute the sulfuric acid in the graphite, and a large amount of heat will be generated during the dilution. If the heat dissipation is not accelerated, the dilution efficiency of the acid will be reduced, resulting in poor dilution effect of the existing dilution cooler during use, reducing the practicality of the dilution cooler, and the existing graphite cooler has slow heat dissipation efficiency and does flush the graphite cooling block, causing certain corrosion to it during long-term use, affecting its service life. Utility Model Content

[0004] The utility model aims to provide a corrosion-resistant regenerated graphite cooler to solve the technical problems in the prior art that the graphite cooler has low heat dissipation efficiency and flushes the graphite cooling block, causing corrosion and affecting the service life.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a corrosion-resistant regenerated graphite cooler, comprising a cylinder, a first cooling chamber and a second cooling chamber arranged inside the cylinder, and a backwashing reflux mechanism connected to the second cooling chamber for backwashing;

[0007] A partition is arranged inside the cylinder, and the two sides of the partition are respectively arranged as the first cooling chamber or the second cooling chamber. The first cooling chamber is arranged inside the mixing cylinder for initial cooling of the material to be cooled, and the second cooling chamber is arranged inside the graphite cooling block for re-cooling the material to be cooled. The second cooling chamber is also arranged inside the confluence chamber for collecting the cooled material to be cooled.

[0008] The cylinder is divided into a first cooling chamber and a second cooling chamber by setting a partition to realize distributed cooling. The first cooling chamber is set to realize rapid cooling of the material to be cooled, and the material is cooled secondary by setting a graphite cooling block, and the cooling efficiency is increased by gradually lowering the temperature.

[0009] Optionally, a heat collecting sheet is provided on the outer wall of the mixing cylinder, and a plurality of heat collecting sheets are provided on the outer wall of the mixing cylinder, and each of the heat collecting sheets is provided with a plurality of heat dissipating fins, and a gap is provided between every two adjacent heat dissipating fins. By providing the heat collecting sheet and heat dissipating fins on each heat collecting sheet, the heat generated inside the mixing cylinder is concentrated on the heat dissipating fins.

[0010] Optionally, an annular water pipe is provided inside the first cooling chamber in contact with the inner wall of the cylinder, and a plurality of high-pressure nozzles are connected to the annular water pipe, and the spray range of the high-pressure nozzles covers the heat dissipating fins, and a first coolant inlet pipe is provided on the outer wall of the cylinder, which penetrates into the cylinder and is connected to the annular water pipe, and the first cooling chamber is also provided with a first coolant outlet pipe for collecting the first coolant. By providing an annular water pipe and a high-pressure nozzle, and a plurality of high-pressure nozzles covering the heat collecting fins, the heat on the heat dissipating fins is taken away by the high-speed circulation of the spray to achieve rapid cooling and cooling, and the first coolant is recycled and reused by providing the first coolant outlet pipe, and the cooling inside the first cooling chamber does not directly contact the material to be cooled, which is environmentally friendly.

[0011] Optionally, a stirring shaft is provided inside the mixing barrel, and a plurality of stirring blades are provided in an axial array on the stirring shaft, and the stirring shaft passes through the outside of the barrel and is connected to a stirring motor for driving, and the mixing barrel is provided with a feed pipe opening extending to the outside of the barrel, and the stirring motor is set to start and drive the stirring shaft to rotate, and the rotation of the stirring shaft drives the stirring blades to mix the material to be cooled inside the mixing barrel.

[0012] Optionally, the graphite cooling block array is provided with a plurality of cooling cavities, and the cooling cavities corresponding to the ends of the graphite cooling blocks are provided with connecting pipes penetrating through the partitions and connected with the mixing cylinder.

[0013] Optionally, the backwash reflux mechanism comprises a box body for containing a second cooling liquid, the box body is connected to a backwash confluence pump, and a backwash discharge pipe is provided at the end of the backwash confluence pump, which passes through the interior of the cylinder body and communicates with the confluence chamber.

[0014] Optionally, the recoil drain pipe is located outside the second cooling chamber and is connected to a drain pipe, the recoil drain pipe is located inside the second cooling chamber and is connected to a second coolant inlet pipe, and a reflux pipe is also provided on the top of the box body, penetrating into the second cooling chamber, and the reflux pipe is connected to a filter cartridge for filtration.

[0015] By arranging a backwash reflux mechanism and a second cooling chamber, the second coolant in the box is passed into the second cooling chamber through the second coolant inlet pipe, and the material to be cooled in the graphite cooling block is cooled again. After cooling, the second coolant inlet pipe is closed, and the drain pipe is opened to collect the material after cooling. By closing the drain pipe and the second coolant inlet pipe, the backwash confluence pump is used to backwash the confluence chamber and the cooling cavity. After flushing, the waste liquid is collected through the drain pipe, and the second coolant in the second cooling chamber can be recovered through the reflux pipe.

[0016] Beneficial effects and advantages of the utility model:

[0017] The corrosion-resistant regenerated graphite cooler divides the cylinder into a first cooling chamber and a second cooling chamber by setting a partition to achieve distributed cooling, and the first cooling chamber is used to achieve rapid cooling of the material to be cooled, and the graphite cooling block is used to perform secondary cooling on the material, and the cooling efficiency is increased by gradually lowering the temperature, and the heat generated inside the mixing cylinder is concentrated on the heat dissipation fins by setting a heat collecting plate and arranging heat dissipation fins on each heat collecting plate, and the heat on the heat dissipation fins is taken away by the jetted high-speed fluid to achieve rapid cooling, and the first coolant outlet pipe is provided to achieve recycling and reuse of the first coolant.

[0018] By setting a second coolant inlet pipe, the second coolant in the box is passed into the second cooling chamber, and the material to be cooled in the graphite cooling block is cooled again. After cooling, the second coolant inlet pipe is closed, and the drain pipe is opened to collect the material after cooling. By closing the drain pipe and the second coolant inlet pipe, the backwash confluence pump is used to backwash the confluence chamber and the cooling cavity. After flushing, the waste liquid is collected through the drain pipe, and the second coolant in the second cooling chamber can be recovered through the reflux pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the cylinder structure of the utility model;

[0021] Figure 3 It is a partial cross-sectional view of the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the first cooling chamber of the utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the second cooling chamber of the utility model.

[0024] In the figure: 1-cylinder, 11-partition, 12-mixing cylinder, 13-feeding pipe mouth, 14-stirring shaft, 15-stirring blade, 16-stirring motor, 2-first cooling chamber, 21-heat collecting plate, 22-heat dissipation fin, 23-annular water pipe, 24-high-pressure nozzle, 25-first coolant inlet pipe, 26-first coolant outlet pipe, 3-second cooling chamber, 31-graphite cooling block, 32-connecting pipe, 33-cooling cavity, 34-convergence chamber, 4-backwashing reflux mechanism, 41-backwashing confluence pump, 42-backwashing drain pipe, 43-drain pipe, 44-second coolant inlet pipe, 45-reflux pipe, 46-filter cylinder, 47-box. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] An embodiment, such as Figures 1 to 5 As shown, this embodiment provides a corrosion-resistant regenerated graphite cooler, comprising a cylinder 1, a first cooling chamber 2 and a second cooling chamber 3 arranged inside the cylinder 1, and a backwashing reflux mechanism 4 connected to the second cooling chamber 3 for backwashing;

[0029] refer to Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the cylinder 1 is preferably configured as a cylindrical structure, and a partition 11 is provided inside the cylinder 1 to divide the interior of the cylinder 1 into two upper and lower spaces, wherein the area formed above the partition 11 and the interior of the cylinder 1 is configured as a first cooling chamber 2, and the area formed below the partition 11 and the interior of the cylinder 1 is configured as a second cooling chamber 3. In this embodiment, a mixing cylinder 12 is provided inside the first cooling chamber 2, and a graphite cooling block 31 is provided inside the second cooling chamber 3, wherein the graphite cooling block 31 is provided with a connecting pipe 32 connected to the mixing cylinder 12, and in this embodiment, a backwash reflux mechanism 4 is provided outside the cylinder 1, penetrating into the interior of the cylinder 1 and connected to the second cooling chamber 3.

[0030] refer to Figure 3 and Figure 4 As shown, in this embodiment, a heat collecting sheet 21 is attached to the outer wall of the mixing cylinder 12, wherein the heat collecting sheets 21 are preferably a plurality of heat collecting sheets 21 attached to the outer wall of the mixing cylinder 12 in a circular array, and each heat collecting sheet 21 is provided with a plurality of heat dissipating fins 22, and a gap is provided between every two adjacent heat dissipating fins 22, and in this embodiment, the heat collecting sheets 21 and the heat dissipating fins 22 are preferably made of a material with good thermal conductivity, such as copper;

[0031] In this embodiment, an annular water pipe 23 is provided inside the first cooling chamber 2 in contact with the inner wall of the cylinder 1, wherein the annular water pipe 23 is connected to a plurality of high-pressure nozzles 24, and in this embodiment, the spray range of the high-pressure nozzles 24 preferably covers all the heat dissipation fins 22, and a first coolant inlet pipe 25 is provided on the outer wall of the cylinder 1 to penetrate into the cylinder 1 and be connected to the annular water pipe 23, and the first cooling chamber 2 is further provided with a first coolant outlet pipe 26 for collecting the first coolant, wherein the first coolant outlet pipe 26 is preferably provided at the bottom of the first cooling chamber 2;

[0032] In this embodiment, a stirring shaft 14 is arranged inside the mixing cylinder 12, wherein the stirring shaft 14 is provided with a plurality of stirring blades 15 in an axial array, and the stirring shaft 14 passes through the outside of the cylinder 1 and is connected to a stirring motor 16 for driving, and the mixing cylinder 12 is provided with a feed pipe port 13 extending to the outside of the cylinder 1.

[0033] When in use, the sulfuric acid to be cooled and diluted is introduced into the water in the mixing cylinder 12 through the feed pipe 13 in proportion, and the stirring motor 16 is started to drive the stirring shaft 14 to rotate, and the stirring blades 15 accelerate the dilution of sulfuric acid. At this time, the temperature of the heat collecting plate 21 and the heat dissipating fins 22 located on the outer wall of the mixing cylinder 12 increases. At this time, the first coolant inlet pipe 25 is started, and the first coolant is sprayed at high speed onto the heat dissipating fins 22 through the annular water pipe 23 and the high-pressure nozzle 24. At this time, the high-speed sprayed fluid takes away the heat on the heat dissipating fins 22 to achieve rapid cooling and cooling, and the first coolant is recycled and reused by setting the first coolant outlet pipe 26.

[0034] refer to Figure 3 and Figure 5 As shown, in this embodiment, the graphite cooling block 31 is provided with a plurality of cooling chambers 33, wherein the cooling chambers 33 are provided corresponding to the connecting pipes 32, and a confluence chamber 34 for collecting the cooled material to be cooled is also provided inside the second cooling chamber 3.

[0035] refer to Figure 1 and Figure 3 As shown, the backwash reflux mechanism 4 in this embodiment includes a box body 47 for containing a second cooling liquid, wherein the box body 47 is connected to a backwash confluence pump 41, wherein a backwash discharge pipe 42 is provided at the end of the backwash confluence pump 41 and passes through the interior of the cylinder body 1 and communicates with the confluence chamber 34.

[0036] In this embodiment, the recoil drain pipe 42 is located at the outer end of the second cooling chamber 3 and is connected to a drain pipe 43, and the recoil drain pipe 42 is located at the inner end of the second cooling chamber 3 and is connected to a second coolant inlet pipe 44, and a reflux pipe 45 is also provided on the top of the box body 47 to penetrate into the second cooling chamber 3, and the reflux pipe 45 is connected to a filter cartridge 46 for filtration. In this embodiment, the filter cartridge 46 preferably adopts an ultrafiltration membrane in the prior art to achieve filtration of the recovered coolant.

[0037] When in use, the material cooled in the first cooling chamber 2 enters the second cooling chamber 3 through the connecting pipe 32, and is cooled again under the action of the graphite cooling block 31, wherein the second coolant in the second cooling chamber 3 passes the second coolant in the box 47 through the second coolant inlet pipe 44, and after the passing is completed, the second coolant inlet pipe 44 is closed;

[0038] After cooling is completed, the drain pipe 43 is opened to collect the material after cooling. After collection, the drain pipe 43 and the second coolant inlet pipe 44 are closed, and the backwash confluence pump 41 is turned on to backwash the confluence chamber 34 and the cooling chamber 33. After flushing, the waste liquid is collected through the drain pipe 43, and the second coolant located in the second cooling chamber 3 in this embodiment can be recovered through the reflux pipe 45.

[0039] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. A corrosion-resistant regenerated graphite cooler, characterized in that: It comprises a cylinder (1), a first cooling chamber (2) and a second cooling chamber (3) arranged inside the cylinder (1), and a backwashing reflux mechanism (4) connected to the second cooling chamber (3) for backwashing; A partition (11) is arranged inside the cylinder (1), and the two sides of the partition (11) are respectively arranged as a first cooling chamber (2) or a second cooling chamber (3), the first cooling chamber (2) is arranged inside the mixing cylinder (12) for initially cooling the material to be cooled, the second cooling chamber (3) is arranged inside the graphite cooling block (31) for re-cooling the material to be cooled, and the second cooling chamber (3) is also arranged inside the confluence chamber (34) for collecting the cooled material to be cooled.

2. A corrosion-resistant regenerated graphite cooler according to claim 1, characterized in that: A heat collecting sheet (21) is provided on the outer wall of the mixing cylinder (12), a plurality of heat collecting sheets (21) are provided on the outer wall of the mixing cylinder (12), and each of the heat collecting sheets (21) is provided with a plurality of heat dissipation fins (22), and a gap is provided between every two adjacent heat dissipation fins (22).

3. A corrosion-resistant regenerated graphite cooler according to claim 2, characterized in that: An annular water pipe (23) is arranged inside the first cooling chamber (2) and is in contact with the inner wall of the cylinder (1); the annular water pipe (23) is connected to a plurality of high-pressure nozzles (24), and the spraying range of the high-pressure nozzles (24) covers the heat dissipation fins (22); a first coolant inlet pipe (25) is arranged on the outer wall of the cylinder (1) and penetrates into the cylinder (1) and is connected to the annular water pipe (23); and the first cooling chamber (2) is also provided with a first coolant outlet pipe (26) for collecting the first coolant.

4. The corrosion-resistant regenerated graphite cooler according to claim 1, characterized in that: The mixing cylinder (12) is provided with a stirring shaft (14) inside, and the stirring shaft (14) is provided with a plurality of stirring blades (15) in an axial array, and the stirring shaft (14) penetrates the outside of the cylinder (1) and is connected to a stirring motor (16) for driving, and the mixing cylinder (12) is provided with a feed pipe opening (13) extending to the outside of the cylinder (1).

5. The corrosion-resistant regenerated graphite cooler according to claim 1, characterized in that: The graphite cooling block (31) array is provided with a plurality of cooling cavities (33), and the ends of the graphite cooling blocks (31) corresponding to the cooling cavities (33) are provided with connecting pipes (32) penetrating the partition plate (11) and connected to the mixing cylinder (12).

6. The corrosion-resistant regenerated graphite cooler according to claim 1, characterized in that: The backwash reflux mechanism (4) comprises a box (47) for containing a second cooling liquid, the box (47) being connected to a backwash confluence pump (41), and a backwash discharge pipe (42) being provided at the end of the backwash confluence pump (41) and penetrating into the interior of the cylinder (1) and communicating with the confluence chamber (34).

7. A corrosion-resistant regenerated graphite cooler according to claim 6, characterized in that: The recoil drain pipe (42) is located outside the second cooling chamber (3) and is connected to a drain pipe (43); the recoil drain pipe (42) is located inside the second cooling chamber (3) and is connected to a second coolant inlet pipe (44); a reflux pipe (45) is also provided on the top of the box body (47) and penetrates into the second cooling chamber (3); and the reflux pipe (45) is connected to a filter cartridge (46) for filtering.

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