Heat exchanger for coal tar production

Abstract

The utility model discloses a heat exchanger for coal tar production, which relates to the related technical field of heat exchangers for coal tar production and comprises a heat exchanger shell, cold water inlet pipes which are symmetrically distributed are communicated with two sides of the top of the heat exchanger shell, and a coal tar inlet pipe is communicated with the middle of the top of the heat exchanger shell. A first partition plate is arranged on the inner wall of one side of the heat exchanger shell, a second partition plate is arranged on the inner wall of the other side of the heat exchanger shell, coal tar is arranged between the first partition plate and the second partition plate, and cold water is arranged on the two sides of the first partition plate and the two sides of the second partition plate. According to the heat exchanger for coal tar production, coal tar is guided into the space between the first partition plate and the second partition plate through the coal tar inlet pipe, cold water is guided into the two sides of the first partition plate and the two sides of the second partition plate through the cold water inlet pipes, and heat of the coal tar is conducted to the two sides of the first partition plate and the two sides of the second partition plate through the heat exchange plates; and the splitter plate is convenient for forming a plurality of channels to split water, so that the heat exchange efficiency is conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers for coal tar production, in particular to a heat exchanger for coal tar production. Background Technique

[0002] Coal tar is an organic mixture mainly composed of aromatic hydrocarbons. Various products obtained from the deep processing of coal tar, such as phenol, xylenol, pyridine, refined naphthalene, anthraquinone, carbazole, etc., are basic raw materials for the production of plastics, synthetic fibers, synthetic rubbers, dyes, pesticides, pharmaceuticals, carbon, organic fuels, etc., and are also basic raw materials for industries such as metallurgy, building materials, chemical engineering, national defense, and food. Some polycyclic aromatic hydrocarbons are still products that cannot be extracted from petroleum at present. In the process of coal tar production, the asphalt product flows out from the bottom of the secondary tower of coal tar distillation. The temperature of the asphalt just flowing out of the secondary tower of coal tar distillation is relatively high, usually between 360°C and 380°C, and it needs to be cooled to become formed asphalt. Therefore, there is an urgent need for a heat exchanger for coal tar production.

[0003] At present, during the long-term use of the heat exchanger for coal tar production, waste materials will block the inside of the heat exchanger, which is inconvenient for cleaning, affects the heat exchange effect, and is also inconvenient for installation and fixation, and has poor stability. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heat exchanger for coal tar production, so as to solve the problems that during the long-term use of the heat exchanger for coal tar production, waste materials will block the inside of the heat exchanger, which is inconvenient for cleaning, affects the heat exchange effect, and is also inconvenient for installation and fixation, and has poor stability as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A heat exchanger for coal tar production, including a heat exchanger housing. Both sides of the top of the heat exchanger housing are communicated with symmetrically distributed cold water inlet pipes. A first flange is arranged at the top of the cold water inlet pipe. The middle of the top of the heat exchanger housing is communicated with a coal tar inlet pipe. A second flange is arranged at the top of the coal tar inlet pipe. A first partition is arranged on one inner wall of the heat exchanger housing, and a second partition is arranged on the other inner wall of the heat exchanger housing. The first partition and the second partition are symmetrically distributed, and coal tar is arranged between the first partition and the second partition. Cold water is arranged on both sides of the first partition and the second partition. Interleaved heat exchange plates are connected between the first partition and the second partition, and the heat exchange plates respectively extend to both sides of the first partition and the second partition. Flow dividing plates are arranged on both inner walls of the heat exchanger housing, and the flow dividing plates are respectively arranged on both sides of the first partition and the second partition.

[0006] Preferably, a cleaning opening is provided in the middle of one side of the heat exchanger housing. A sealing plate is provided outside the cleaning opening. A sealing plate adapted to the cleaning opening is provided on the inner wall of the sealing plate. A sealing gasket is provided between the sealing plate and the cleaning opening.

[0007] Preferably, fastening screw grooves are provided on the sealing plate, and the fastening screw grooves are also provided on the outer peripheral walls around the cleaning opening. The fastening screw grooves connect and fix the sealing plate to the outer wall of the heat exchanger housing by means of fastening bolts adapted thereto.

[0008] Preferably, both sides of the bottom of one side of the heat exchanger housing are communicated with a hot water outlet pipe, and a first stop valve is provided on the hot water outlet pipe.

[0009] Preferably, a coal tar outlet pipe is communicated with the middle bottom of one side of the heat exchanger housing, and a second stop valve is provided on the coal tar outlet pipe.

[0010] Preferably, an installation back plate is provided on the outer wall of the other side of the heat exchanger housing. Installation screw grooves are provided on the installation back plate. The installation screw grooves connect and fix the installation back plate to the wall surface by means of installation bolts adapted thereto.

[0011] Preferably, one ends of inclined struts are connected to both sides of the bottom of the heat exchanger housing. The other ends of the inclined struts are connected to a fixing plate. Fixing screw grooves are provided on the fixing plate. The fixing screw grooves connect and fix the fixing plate to the wall surface by means of fixing bolts adapted thereto.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. For the heat exchanger for coal tar production, the first partition plate and the second partition plate facilitate separating the inside of the heat exchanger housing. It is convenient to introduce coal tar between the first partition plate and the second partition plate through the coal tar inlet pipe, and introduce cold water on both sides of the first partition plate and the second partition plate through the cold water inlet pipe. The first flange and the second flange are convenient for connecting with the extension pipeline. The heat exchange plate facilitates conducting the heat of the coal tar to both sides of the first partition plate and the second partition plate and exchanging heat with cold water. The flow dividing plate facilitates forming multiple channels to divide the water, which is convenient for improving the heat exchange efficiency. The hot water is discharged through the hot water outlet pipe, and the first stop valve is convenient for controlling the opening and closing of the hot water outlet pipe. The heat-exchanged coal tar is exported through the coal tar outlet pipe, and the second stop valve is convenient for controlling the opening and closing of the coal tar outlet pipe. The heat exchanger is used for a long time;

[0014] 2. The heat exchanger produced from coal tar is prone to blockage due to the accumulation of impurities inside the coal tar. The cleaning opening facilitates cleaning and maintenance. The sealing plate, in cooperation with the sealing gasket, enables the convenient closing of the cleaning opening. The fastening bolts facilitate the disassembly and assembly of the sealing plate. The installation bolts passing through the installation backplate facilitate the installation and fixation of the heat exchanger housing. The diagonal strut provides support for the bottom of the heat exchanger housing. The fixing bolts passing through the fixing plate facilitate the fixation of the diagonal strut, making it convenient and fast to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a partial three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 3 is a schematic diagram of the internal sectional structure of the heat exchanger housing of the present utility model;

[0018] Figure 4 is a three-dimensional structural schematic diagram of the sealing plate of the present utility model.

[0019] In the figure: 1. Heat exchanger housing; 2. Cold water inlet pipe; 3. First flange; 4. Coal tar inlet pipe; 5. Second flange; 6. First partition; 7. Second partition; 8. Heat exchange plate; 9. Flow dividing plate; 10. Cleaning opening; 11. Sealing plate; 12. Sealing gasket; 13. Sealing washer; 14. Fastening groove; 15. Fastening bolt; 16. Hot water outlet pipe; 17. First stop valve; 18. Coal tar outlet pipe; 19. Second stop valve; 20. Installation backplate; 21. Installation groove; 22. Installation bolt; 23. Diagonal strut; 24. Fixing plate; 25. Fixing groove; 26. Fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4, the utility model provides a technical solution: a heat exchanger for coal tar production, which includes a heat exchanger housing 1. Both sides of the top of the heat exchanger housing 1 are connected with symmetrically distributed cold water inlet pipes 2. A first flange 3 is arranged at the top of the cold water inlet pipe 2. The middle of the top of the heat exchanger housing 1 is connected with a coal tar inlet pipe 4. A second flange 5 is arranged at the top of the coal tar inlet pipe 4. A first partition plate 6 is arranged on one side inner wall of the heat exchanger housing 1. A second partition plate 7 is arranged on the other side inner wall of the heat exchanger housing 1. The first partition plate 6 and the second partition plate 7 are symmetrically distributed, and coal tar is arranged between the first partition plate 6 and the second partition plate 7. Cold water is arranged on both sides of the first partition plate 6 and the second partition plate 7. Interlaced heat exchange plates 8 are connected between the first partition plate 6 and the second partition plate 7, and the heat exchange plates 8 respectively extend to both sides of the first partition plate 6 and the second partition plate 7. Flow dividing plates 9 are arranged on both sides of the inner walls of the two sides of the heat exchanger housing 1, and the flow dividing plates 9 are respectively arranged on both sides of the first partition plate 6 and the second partition plate 7. Both sides of the bottom of one side of the heat exchanger housing 1 are connected with a hot water outlet pipe 16. A first stop valve 17 is arranged on the hot water outlet pipe 16. The middle bottom of one side of the heat exchanger housing 1 is connected with a coal tar outlet pipe 18. A second stop valve 19 is arranged on the coal tar outlet pipe 18. The first partition plate 6 and the second partition plate 7 are convenient for separating the inside of the heat exchanger housing 1, facilitating the introduction of coal tar through the coal tar inlet pipe 4 between the first partition plate 6 and the second partition plate 7, and the introduction of cold water through the cold water inlet pipes 2 on both sides of the first partition plate 6 and the second partition plate 7. The first flange 3 and the second flange 5 are convenient for connecting with the extended pipes. The heat exchange plates 8 are convenient for conducting the heat of the coal tar to both sides of the first partition plate 6 and the second partition plate 7 and exchanging heat with cold water. The flow dividing plates 9 are convenient for forming multiple channels to divide the water flow, facilitating the improvement of the heat exchange efficiency. The hot water is discharged through the hot water outlet pipe 16. The first stop valve 17 is convenient for controlling the opening and closing of the hot water outlet pipe 16. The heat-exchanged coal tar is exported through the coal tar outlet pipe 18. The second stop valve 19 is convenient for controlling the opening and closing of the coal tar outlet pipe 18, and it is convenient and fast to use.

[0022] In the middle of one side of the heat exchanger housing 1, a cleaning opening 10 is provided. Outside the cleaning opening 10, a sealing plate 11 is provided. On the inner wall of the sealing plate 11, a sealing plate 12 adapted to the cleaning opening 10 is provided. Between the sealing plate 12 and the cleaning opening 10, a sealing gasket 13 is provided. On the sealing plate 11, a fastening screw groove 14 is provided, and the fastening screw groove 14 is also opened on the outer wall around the cleaning opening 10. The fastening screw groove 14 connects and fixes the sealing plate 12 to the outer wall of the heat exchanger housing 1 by means of a fastening bolt 15 adapted thereto. On the outer wall of the other side of the heat exchanger housing 1, a mounting back plate 20 is provided. On the mounting back plate 20, a mounting screw groove 21 is provided. The mounting screw groove 21 connects and fixes the mounting back plate 20 to the wall surface by means of a mounting bolt 22 adapted thereto. At both sides of the bottom of the heat exchanger housing 1, one end of an inclined strut 23 is connected. The other end of the inclined strut 23 is connected to a fixing plate 24. On the fixing plate 24, a fixing screw groove 25 is provided. The fixing screw groove 25 connects and fixes the fixing plate 24 to the wall surface by means of a fixing bolt 26 adapted thereto. After long-term use of the heat exchanger, impurities in the coal tar are likely to accumulate and block the heat exchanger. It is convenient to carry out cleaning and maintenance through the cleaning opening 10. The sealing plate 11 facilitates the closing of the cleaning opening 10 through the cooperation of the sealing plate 12 and the sealing gasket 13. It is convenient to disassemble and assemble the sealing plate 11 through the fastening bolt 15. It is convenient to install and fix the heat exchanger housing 1 through the mounting bolt 22 passing through the mounting back plate 20. It is convenient to provide support for the bottom of the heat exchanger housing 1 through the inclined strut 23. It is convenient to fix the inclined strut 23 through the fixing bolt 26 passing through the fixing plate 24.

[0023] Working principle: First, the first partition plate 6 and the second partition plate 7 are used to facilitate the separation of the interior of the heat exchanger housing 1, which is convenient for introducing coal tar through the coal tar inlet pipe 4 between the first partition plate 6 and the second partition plate 7, and introducing cold water through the cold water inlet pipe 2 on both sides of the first partition plate 6 and the second partition plate 7. The first flange 3 and the second flange 5 are convenient for connecting with the extension pipe. The heat exchange plate 8 is used to facilitate the conduction of the heat of the coal tar to both sides of the first partition plate 6 and the second partition plate 7 and exchange heat with cold water. The flow dividing plate 9 is used to facilitate the formation of multiple channels to divide the water flow, which is convenient for improving the heat exchange efficiency. The hot water outlet pipe 16 is used to discharge the hot water. The first stop valve 17 is convenient for controlling the opening and closing of the hot water outlet pipe 16. The coal tar outlet pipe 18 is used to export the heat-exchanged coal tar. The second stop valve 19 is convenient for controlling the opening and closing of the coal tar outlet pipe 18. After long-term use of the heat exchanger, impurities in the coal tar are likely to accumulate and block the heat exchanger. The cleaning opening 10 is convenient for cleaning and maintenance. The sealing plate 11, in cooperation with the sealing gasket 13, is used to facilitate the closing of the cleaning opening 10. The fastening bolt 15 is convenient for disassembling and assembling the sealing plate 11. The installation bolt 22 passes through the installation back plate 20 to facilitate the installation and fixation of the heat exchanger housing 1. The diagonal strut 23 is used to provide support for the bottom of the heat exchanger housing 1. The fixing bolt 26 passes through the fixing plate 24 to facilitate the fixation of the diagonal strut 23. It is convenient and fast to use, and thus the operation process of a heat exchanger for coal tar production is completed.

[0024] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger for coal tar production, characterized in that It includes a heat exchanger housing (1). On both sides of the top of the heat exchanger housing (1), symmetrically distributed cold water inlet pipes (2) are connected and communicated. At the top of the cold water inlet pipe (2), a first flange (3) is provided. In the middle of the top of the heat exchanger housing (1), a coal tar inlet pipe (4) is connected and communicated. At the top of the coal tar inlet pipe (4), a second flange (5) is provided. On one inner wall of the heat exchanger housing (1), a first partition plate (6) is provided. On the other inner wall of the heat exchanger housing (1), a second partition plate (7) is provided. The first partition plate (6) and the second partition plate (7) are symmetrically distributed, and coal tar is arranged between the first partition plate (6) and the second partition plate (7). Cold water is arranged on both sides of the first partition plate (6) and the second partition plate (7). Interleaved heat exchange plates (8) are connected between the first partition plate (6) and the second partition plate (7), and the heat exchange plates (8) respectively extend to both sides of the first partition plate (6) and the second partition plate (7). On both inner walls of the heat exchanger housing (1), flow dividing plates (9) are provided, and the flow dividing plates (9) are respectively arranged on both sides of the first partition plate (6) and the second partition plate (7).

2. The heat exchanger for coal tar production according to claim 1, characterized in that: A cleaning opening (10) is provided in the middle of one side of the heat exchanger housing (1). An enclosing plate (11) is provided outside the cleaning opening (10). On the inner wall of the enclosing plate (11), a sealing plate (12) adapted to the cleaning opening (10) is provided. A sealing gasket (13) is arranged between the sealing plate (12) and the cleaning opening (10).

3. The heat exchanger for coal tar production according to claim 2, characterized in that: Fastening screw grooves (14) are provided on the enclosing plate (11), and the fastening screw grooves (14) are also opened on the outer peripheral walls around the cleaning opening (10). The fastening screw grooves (14) connect and fix the sealing plate (12) to the outer wall of the heat exchanger housing (1) by means of fastening bolts (15) adapted thereto.

4. A heat exchanger for coal tar production according to claim 1, characterized in that: On both sides of the bottom of one side of the heat exchanger housing (1), hot water outlet pipes (16) are connected and communicated. A first stop valve (17) is provided on the hot water outlet pipe (16).

5. The heat exchanger produced from coal tar according to claim 1, wherein: In the middle of the bottom of one side of the heat exchanger housing (1), a coal tar outlet pipe (18) is connected and communicated. A second stop valve (19) is provided on the coal tar outlet pipe (18).

6. The heat exchanger for coal tar production according to claim 1, characterized in that: An installation back plate (20) is provided on the outer wall of the other side of the heat exchanger housing (1). Installation screw grooves (21) are provided on the installation back plate (20). The installation screw grooves (21) connect and fix the installation back plate (20) to the wall surface by means of installation bolts (22) adapted thereto.

7. A heat exchanger for coal tar production according to claim 1, characterized in that: One ends of inclined struts (23) are connected to both sides of the bottom of the heat exchanger housing (1). The other ends of the inclined struts (23) are connected to a fixing plate (24). Fixing screw grooves (25) are provided on the fixing plate (24). The fixing screw grooves (25) connect and fix the fixing plate (24) to the wall surface by means of fixing bolts (26) adapted thereto.

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