Double-side anti-corrosion graphite heat exchanger with double-heat-source layered feeding function

Abstract

The utility model discloses a double-side anti-corrosion graphite heat exchanger capable of achieving double-heat-source layered feeding. The double-side anti-corrosion graphite heat exchanger comprises a shell, a first heat exchange cavity and a second heat exchange cavity. The device has the beneficial effects that raw materials enter the shunting disc through the feeding pipe, the internal height of the shunting disc is small, and the raw materials can be rapidly shunted and enter different graphite pipes, so that the distribution uniformity is improved, the problem that the working efficiency is reduced due to the fact that the raw materials cannot be introduced into the graphite pipes above because the raw material flow is relatively small is solved, the working efficiency is improved, and meanwhile, the cost is reduced. Raw materials enter the graphite pipe and are repeatedly baffled along the second baffle plate, the flowing path is prolonged, the heat exchange efficiency is improved, the contact efficiency with the pipe wall of the graphite pipe is improved, the heat exchange efficiency is further improved, meanwhile, a worker can open the front end cover, take down the disc cover and pull out the second baffle plate, the graphite pipe is convenient to dredge, and the working efficiency is improved. The convenience of cleaning and maintenance is improved, the working efficiency is improved, and meanwhile, the second baffle plate and the graphite pipe are made of the same material, so that the corrosion resistance is high.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, and specifically, to a double-source stratified feeding double-sided anti-corrosion graphite heat exchanger. Background Technique

[0002] A graphite heat exchanger is a heat exchanger whose heat transfer components are made of graphite. The graphite used to manufacture the heat exchanger should be impermeable, and commonly used impregnated impermeable graphite and pressed impermeable graphite are used.

[0003] After retrieval, it is found that the publication number is CN208688304U, and the name is a graphite heat exchanger. This application proposes a graphite heat exchanger. By setting a gas buffer device, the impact intensity of the gas to be treated on the graphite pipeline and the graphite fixing ring is reduced, and the loss of the graphite heat exchanger is reduced. In addition, a sealing device with a specific structure is set to avoid mutual contamination between heat exchange media and cause corrosion at the same time, and the service life of the graphite heat exchanger is extended. However, this application uses a material buffer and dispersion component to disperse the raw materials. Since the graphite tubes are distributed in a tube-in-shell arrangement, when the material flow rate is small, it is difficult for the material to enter all the graphite tubes evenly and quickly. When this application is placed horizontally, only the graphite tubes located below will receive the material, and the graphite tubes located above are in an idle state, resulting in a reduction in the contact efficiency between the material and the surface of the graphite tubes, affecting the heat exchange performance. At the same time, the inside of the graphite tube is in a straight tube state, the material flow rate is fast, affecting the heat exchange duration, and further improvement can be made. At the same time, when the cooling medium undergoes a long-term cross-flow, its temperature will continue to rise, so that the heat exchange efficiency of the cooling medium in the later stage is greatly reduced, which also affects the working efficiency.

[0004] In view of the problems in the related art, no effective solution has been proposed yet. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a double-source stratified feeding double-sided anti-corrosion graphite heat exchanger, which has the advantage of high heat exchange efficiency, and thus solves the problems in the above background technique.

[0007] (2) Technical Solutions

[0008] In order to achieve the above-mentioned advantage of high heat exchange efficiency, the specific technical solutions adopted by the utility model are as follows:

[0009] A double-heat-source stratified-feed double-sided anti-corrosion graphite heat exchanger, comprising a shell, a first heat exchange chamber and a second heat exchange chamber. The shell is internally provided with the first heat exchange chamber and the second heat exchange chamber, and a partition is fixedly connected inside the shell between the first heat exchange chamber and the second heat exchange chamber. Graphite tubes are fixedly connected through the first heat exchange chamber and the second heat exchange chamber. Both ends of the shell are fixedly connected with a front end cover and a rear end cover. A flow dividing disk is arranged inside the front end cover, and the flow dividing disk is connected in communication with one end of the graphite tube. The other end of the flow dividing disk is fixedly connected with a disk cover through a fixing bolt, and a feed pipe is connected in communication with the surface of the disk cover. The feed pipe penetrates through the front end cover and is slidably connected with the front end cover. A connecting rod is inserted into the graphite tube, and a second baffle is fixedly connected to the surface of the connecting rod. First baffles are fixedly installed in the first heat exchange chamber and the second heat exchange chamber. Medium inlet pipes are connected in communication with the bottom surfaces of the first heat exchange chamber and the second heat exchange chamber, and medium outlet pipes are connected in communication with the top surfaces of the first heat exchange chamber and the second heat exchange chamber.

[0010] Further, the second baffles are arranged in a staggered manner, and the diameter of the second baffles is equal to the inner diameter of the graphite tubes.

[0011] Further, multiple groups of the graphite tubes are equidistantly distributed, and the graphite tubes penetrate through the first baffles and the partition.

[0012] Further, a heat insulation layer is filled between the partitions, and the thickness of the heat insulation layer is not less than 10 cm.

[0013] Further, a flared opening is formed at the other end of the graphite tube, and the diameter of the other port of the flared opening is smaller than the inner diameter of the graphite tube.

[0014] Further, a discharge pipe is connected in communication with the surface of the rear end cover, and the discharge pipe is located at the bottom surface of the rear end cover.

[0015] Further, the partition, the inner wall of the shell, and the surfaces of the first baffles are all sprayed with graphite coatings, and the first baffles are arranged in a staggered manner.

[0016] Further, both the front end cover and the rear end cover are flange-connected to the shell.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present utility model provides a double-heat-source stratified-feed double-sided anti-corrosion graphite heat exchanger, which has the following beneficial effects:

[0019] (1) The utility model adopts a flow dividing plate and a second baffle plate. The second baffle plate is directly inserted into the graphite tube. The raw material enters the flow dividing plate through the feed pipe. The internal height of the flow dividing plate is small, and the raw material can be quickly divided and enter different graphite tubes, improving the uniformity of distribution, avoiding the problem of reduced working efficiency caused by the inability of the upper graphite tube to pass the raw material due to a small raw material flow rate, and improving the working efficiency. At the same time, when the raw material enters the graphite tube, it undergoes repeated baffle flow along the second baffle plate, which not only extends the flow path, improves the heat exchange efficiency, but also increases the contact efficiency with the inner wall of the graphite tube, further improving the heat exchange efficiency. At the same time, the staff can open the front cover, remove the disc cover and then extract the second baffle plate, which is convenient for dredging the graphite tube, improving the convenience of cleaning and maintenance, and improving the working efficiency. At the same time, the second baffle plate is made of the same material as the graphite tube, with high corrosion resistance and extended service life.

[0020] (2) The utility model adopts a first heat exchange chamber and a second heat exchange chamber. The bottoms of the first heat exchange chamber and the second heat exchange chamber are both connected with a medium inlet pipe in a through manner. The cooling medium enters the first heat exchange chamber and the second heat exchange chamber along the medium inlet pipe and flows out along the medium outlet pipe. The double heat source stratified feeding cooling is adopted, and the cooling processes are independent of each other, avoiding the problem of reduced heat exchange efficiency in the later stage caused by the heat attenuation of the traditional cooling medium during the later baffle flow process, further improving the heat exchange efficiency. And the inner wall of the shell and the surface of the baffle plate are both sprayed with a graphite coating, so that both the outside of the cooling medium and the outside of the raw material are protected by graphite materials, adopting double-sided graphite anti-corrosion, and further extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of a double heat source stratified feeding double-sided anti-corrosion graphite heat exchanger proposed by the present utility model;

[0023] Figure 2 It is a schematic internal structure diagram of the graphite tube proposed by the present utility model;

[0024] Figure 3 It is a schematic structural diagram of the second baffle plate proposed by the present utility model;

[0025] Figure 4 It is a schematic structural diagram of the flow dividing plate proposed by the present utility model.

[0026] In the figure:

[0027] 1. Shell; 2. First heat exchange chamber; 3. Second heat exchange chamber; 4. Graphite tube; 5. First baffle; 6. Partition plate; 7. Heat insulation layer; 8. Medium inlet pipe; 9. Medium outlet pipe; 10. Front end cover; 11. Rear end cover; 12. Shunt disk; 13. Disk cover; 14. Feed pipe; 15. Discharge pipe; 16. Connecting rod; 17. Second baffle; 18. Bell mouth; 19. Fixing bolt. Detailed implementation manners

[0028] To further illustrate each embodiment, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention, mainly used to illustrate the embodiments, and can be combined with the relevant descriptions in the specification to explain the operation principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] According to an embodiment of the present invention, a double - heat - source stratified - feeding bilateral - corrosion - resistant graphite heat exchanger is provided.

[0030] Now, the present invention will be further described in combination with the accompanying drawings and specific implementation manners, as Figures 1-4As shown in the figure, a double heat source stratified feeding double-sided anti-corrosion graphite heat exchanger according to an embodiment of the present invention includes a housing 1, a first heat exchange chamber 2 and a second heat exchange chamber 3. The first heat exchange chamber 2 and the second heat exchange chamber 3 are arranged inside the housing 1, and a partition plate 6 is fixedly connected inside the housing 1 between the first heat exchange chamber 2 and the second heat exchange chamber 3. Graphite tubes 4 are fixedly connected through the first heat exchange chamber 2 and the second heat exchange chamber 3. The two ends of the housing 1 are fixedly connected with a front end cover 10 and a rear end cover 11. A flow dividing disc 12 is arranged inside the front end cover 10, and the flow dividing disc 12 is communicated with one end of the graphite tube 4. The height inside the flow dividing disc 12 is not greater than 3 cm. The other end of the flow dividing disc 12 is fixedly connected with a disc cover 13 through a fixing bolt 19. A feed pipe 14 is communicated with the surface of the disc cover 13. The feed pipe 14 penetrates through the front end cover 10 and is slidably connected with the front end cover 10, which is convenient for disassembling the front end cover 10. A connecting rod 16 is inserted into the graphite tube 4, and a second baffle 17 is fixedly connected to the surface of the connecting rod 16. First baffles 5 are fixedly installed inside the first heat exchange chamber 2 and the second heat exchange chamber 3. Medium inlet pipes 8 are communicated with the bottom surfaces of the first heat exchange chamber 2 and the second heat exchange chamber 3, and medium outlet pipes 9 are communicated with the top surfaces of the first heat exchange chamber 2 and the second heat exchange chamber 3. The second baffle 17 is directly inserted into the graphite tube 4. The raw material enters the flow dividing disc 12 through the feed pipe 14. The height inside the flow dividing disc 12 is small, and the raw material can be quickly divided and enter different graphite tubes 4, improving the distribution uniformity and avoiding the problem of reduced working efficiency caused by the inability of the upper graphite tubes 4 to pass the raw material due to a small raw material flow rate, thus improving the working efficiency. At the same time, when the raw material enters the graphite tube 4, it undergoes repeated baffle flow along the second baffle 17, which not only prolongs the flow path and improves the heat exchange efficiency, but also increases the contact efficiency with the inner wall of the graphite tube 4, further improving the heat exchange efficiency. At the same time, the staff can open the front end cover 10, remove the disc cover 13 and then draw out the second baffle 17, which is convenient for dredging the graphite tube 4, improving the convenience of cleaning and maintenance and the working efficiency. At the same time, the second baffle 17 is made of the same material as the graphite tube 4, with high anti-corrosion performance and prolonged service life. At the same time, medium inlet pipes 8 are communicated with the bottom surfaces of the first heat exchange chamber 2 and the second heat exchange chamber 3. The cooling medium enters the first heat exchange chamber 2 and the second heat exchange chamber 3 along the medium inlet pipes 8 and flows out along the medium outlet pipes 9. Double heat source stratified feeding cooling is adopted, and the cooling processes are independent of each other, avoiding the problem of reduced heat exchange efficiency in the later stage caused by heat attenuation during the later baffle flow of the traditional cooling medium, further improving the heat exchange efficiency. And graphite coatings are sprayed on the inner wall of the housing 1 and the surface of the baffle, so that graphite materials are used for protection on the outer sides of both the cooling medium and the raw material, adopting double-sided graphite anti-corrosion and further prolonging the service life.

[0031] In one embodiment, the second baffles 17 are arranged in a staggered manner, and the diameter of the second baffle 17 is equal to the inner diameter of the graphite tube 4. Multiple groups of the second baffles 17 are arranged at equal intervals.

[0032] In one embodiment, multiple groups of graphite tubes 4 are evenly distributed at equal intervals, and the graphite tubes 4 penetrate through the first baffle 5 and the partition 6. Among them, a heat insulation layer 7 is filled between the partitions 6, and the thickness of the heat insulation layer 7 is not less than 10 cm. The heat insulation layer 7 is made of a heat insulation material to prevent mutual influence between the cooling media.

[0033] In one embodiment, a flared opening 18 is formed at the other end of the graphite tube 4, and the diameter of the other port of the flared opening 18 is smaller than the inner diameter of the graphite tube 4, so as to prevent the second baffle 17 from moving out of the graphite tube 4 under the scouring of the raw material, limit the second baffle 17, and not affect the flow of the raw material.

[0034] In one embodiment, a discharge pipe 15 is connected to the surface of the rear end cover 11 in a penetrating manner, and the discharge pipe 15 is located at the bottom surface of the rear end cover 11 to facilitate the outflow of the raw material.

[0035] In one embodiment, graphite coatings are sprayed on the surfaces of the partition 6, the inner wall of the housing 1, and the first baffle 5, and the first baffles 5 are arranged in a staggered manner, which is a common structure and will not be elaborated here too much.

[0036] In one embodiment, both the front end cover 10 and the rear end cover 11 are flange-connected to the housing 1, which is a common connection form in the art.

[0037] Working principle:

[0038] The raw material enters the flow dividing disk 12 through the feed pipe 14. The internal height of the flow dividing disk 12 is small, and the raw material can be quickly divided and enter different graphite tubes 4, improving the distribution uniformity, avoiding the problem of reduced working efficiency caused by the inability of the upper graphite tubes 4 to be fed with raw material due to a small raw material flow rate, and improving the working efficiency. At the same time, when the raw material enters the graphite tube 4, it undergoes repeated folding along the second baffle 17, which not only extends the flow path, improves the heat exchange efficiency, but also increases the contact efficiency with the inner wall of the graphite tube 4, further improving the heat exchange efficiency. At the same time, the staff can open the front end cover 10, remove the disc cover 13 and then pull out the second baffle 17 to facilitate the dredging of the graphite tube 4, improving the convenience of cleaning and maintenance and the working efficiency. At the same time, the second baffle 17 is made of the same material as the graphite tube 4, with high corrosion resistance and extended service life. At the same time, medium inlet pipes 8 are connected to the bottom surfaces of the first heat exchange chamber 2 and the second heat exchange chamber 3 in a penetrating manner. The cooling medium enters the first heat exchange chamber 2 and the second heat exchange chamber 3 along the medium inlet pipes 8 and flows out along the medium outlet pipes 9. Double heat source stratified feeding cooling is adopted, and the cooling processes are independent of each other, avoiding the problem of reduced heat exchange efficiency in the later stage caused by heat attenuation during the later folding of the traditional cooling medium, further improving the heat exchange efficiency. Moreover, graphite coatings are sprayed on the inner wall of the housing 1 and the surface of the baffle, so that graphite materials are used for protection on both the outer side of the cooling medium and the outer side of the raw material. Double-sided graphite anti-corrosion is adopted, further extending the service life.

[0039] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A double heat source stratified feeding double-sided anti-corrosion graphite heat exchanger, characterized in that, It includes a housing (1), a first heat exchange chamber (2) and a second heat exchange chamber (3). The first heat exchange chamber (2) and the second heat exchange chamber (3) are arranged inside the housing (1). A partition (6) is fixedly connected inside the housing (1) between the first heat exchange chamber (2) and the second heat exchange chamber (3). A graphite tube (4) is fixedly connected through the first heat exchange chamber (2) and the second heat exchange chamber (3). The two ends of the housing (1) are fixedly connected with a front end cover (10) and a rear end cover (11). A flow dividing plate (12) is arranged inside the front end cover (10), and the flow dividing plate (12) is connected in communication with one end of the graphite tube (4). The other end of the flow dividing plate (12) is fixedly connected with a disc cover (13) through a fixing bolt (19). A feed pipe (14) is connected in communication with the surface of the disc cover (13). The feed pipe (14) penetrates through the front end cover (10) and is slidably connected with the front end cover (10). A connecting rod (16) is inserted into the graphite tube (4), and a second baffle (17) is fixedly connected to the surface of the connecting rod (16). A first baffle (5) is fixedly installed inside the first heat exchange chamber (2) and the second heat exchange chamber (3). A medium inlet pipe (8) is connected in communication with the bottom surfaces of the first heat exchange chamber (2) and the second heat exchange chamber (3), and a medium outlet pipe (9) is connected in communication with the top surfaces of the first heat exchange chamber (2) and the second heat exchange chamber (3).

2. The double heat source stratified feeding double-sided anti-corrosion graphite heat exchanger according to claim 1, wherein, The second baffles (17) are arranged staggeredly, and the diameter of the second baffles (17) is equal to the inner diameter of the graphite tubes (4).

3. A double heat source stratified feeding double-sided anti-corrosion graphite heat exchanger according to claim 1, characterized in that, Multiple groups of the graphite tubes (4) are arranged at equal intervals, and the graphite tubes (4) penetrate through the first baffles (5) and the partition (6).

4. A double heat source stratified feeding double-sided anti-corrosion graphite heat exchanger according to claim 1, characterized in that, An insulating layer (7) is filled between the partitions (6), and the thickness of the insulating layer (7) is not less than 10 cm.

5. A double heat source stratified feeding double-sided anti-corrosion graphite heat exchanger according to claim 1, characterized in that, The other end of the graphite tube (4) is provided with a flare opening (18), and the diameter of the other port of the flare opening (18) is smaller than the inner diameter of the graphite tube (4).

6. A double heat source stratified feeding double-sided anti-corrosion graphite heat exchanger according to claim 1, characterized in that, A discharge pipe (15) is connected in communication with the surface of the rear end cover (11), and the discharge pipe (15) is located at the bottom surface of the rear end cover (11).

7. A double-heat-source stratified-feed double-sided anti-corrosion graphite heat exchanger according to claim 1, characterized in that, The partitions (6), the inner wall of the housing (1), and the surfaces of the first baffles (5) are all sprayed with a graphite coating, and the first baffles (5) are arranged staggeredly.

8. A double heat source stratified feeding double-sided anti-corrosion graphite heat exchanger according to claim 1, characterized in that, Both the front end cover (10) and the rear end cover (11) are flange-connected to the housing (1).

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