Novel dual-purpose riser superheater

Abstract

The utility model discloses a novel dual-purpose riser superheater which comprises a connecting pipe, a connecting structure installed at the top end of the connecting pipe, a barrel installed at the top end of the connecting pipe, a water vapor mixture opening installed at the top end of one side of a jacket structure, and a saturated steam inlet installed at the top end of the other side of the jacket structure. And a filtering structure is mounted on one side of the saturated steam inlet and the water inlet. By combining the integral jacket and the coil pipe structure, the utility model inherits the advantages of the integral jacket and the coil pipe structure, can generate superheated steam with low and medium pressure and more than or equal to 400 DEG C, strengthens the heat exchange effect of the superheater, improves the service life and practicability, and ensures that the integral jacket is arranged outside the arc-shaped cavity to form a steam-water closed space and generate a steam-water mixture; the heat conductivity of the arc-shaped cavity is enhanced, the ascension pipe is protected, when a weld joint of the arc-shaped cavity leaks and superheated steam enters the water vapor space, other heat exchange channels are not affected, and therefore the purpose of improving the heat exchange efficiency of the novel dual-purpose ascension pipe superheater is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of benzene removal processing, in particular to a novel dual-purpose riser superheater. Background Art

[0002] The debenzening section in the chemical production area of ​​the coking plant requires a large amount of washing oil to wash away benzene in the coal gas. After washing the benzene with the washing oil, the composition of the absorbed coal gas is relatively complex. In addition to benzene, there are high-boiling point aromatic components, tar-forming components, unsaturated cyclic compounds, sulfur-containing compounds and various gaseous components. These compounds participate in copolymerization reactions with each other, and the regular and irregular heating of the washing oil during the distillation and absorption process aggravates the occurrence of copolymerization reactions. The copolymerization reaction causes the washing oil to generate a large amount of high-boiling point polymers with high viscosity, resulting in increased washing oil consumption, reduced benzene washing efficiency, and reduced coal gas quality. A good washing oil quality has a direct cause for the benzene content in the coal gas after the benzene washing tower and the benzene content in the rich and poor oils, so high-temperature superheated steam ≥400°C is required to remove light components in the washing oil and improve the washing oil quality.

[0003] The above-mentioned existing technology still has many shortcomings, but the mainstream riser superheater in the existing market is an external coil structure. The external coil structure adopts a spiral coil wound on the outer wall of the inner tube of the riser, linear contact heat exchange, and there are gaps between the coils. The air thermal conductivity efficiency is too low, which greatly affects the heat exchange efficiency of the external coil structure. As the use time increases, the coil will gradually peel off from the wall of the inner tube of the riser under the condition of long-term thermal expansion and contraction, and the heat exchange efficiency is greatly reduced. Therefore, a new dual-purpose riser heat exchanger is developed, which adopts a new structure combining a jacket and a coil to ensure the heat exchange efficiency while improving the safety of the structure. Utility Model Content

[0004] The utility model aims to provide a novel dual-purpose riser superheater to solve the defect of insufficient heat exchange efficiency of the existing novel dual-purpose riser superheater.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a novel dual-purpose riser superheater, comprising a connecting pipe;

[0006] A connecting structure is installed at the top of the connecting pipe, and a cylinder is installed at the top of the connecting pipe;

[0007] The bottom end of the cylinder is provided with a material inlet, the top end of the cylinder is provided with a material outlet, the outer side of the cylinder is provided with a jacket structure, and the jacket structure includes an integral jacket, an annular liquid guide cavity and an arc-shaped cavity, and the arc-shaped cavity is provided on the outer side of the cylinder;

[0008] A superheated steam outlet is installed at the bottom end of one side of the jacket structure, a water inlet is installed at the bottom end of the other side of the jacket structure, a water vapor mixture inlet is installed at the top end of one side of the jacket structure, a saturated steam inlet is installed at the top end of the other side of the jacket structure, and a filtering structure is installed on one side of the saturated steam inlet and the water inlet.

[0009] When in use, firstly, by combining the integral jacket and the coil structure, the advantages of the integral jacket and the coil are inherited, and low and medium pressure superheated steam of ≥400°C can be generated, the heat exchange effect of the superheater is enhanced, and the service life and practicality are improved. The integral jacket is outside the arc cavity to form a closed steam-water space, produce a steam-water mixture, enhance the thermal conductivity of the arc cavity and protect the riser. When the weld of the arc cavity leaks, the superheated steam enters the water vapor space without affecting other heat exchange channels.

[0010] Preferably, an integral jacket is provided on the outside of the arc-shaped cavity, and an annular liquid guiding cavity is provided on the top and bottom ends of the integral jacket. The integral jacket is outside the arc-shaped cavity to form a closed space for steam and water, produce a steam-water mixture, enhance the thermal conductivity of the arc-shaped cavity and protect the riser.

[0011] Preferably, the annular liquid guiding cavity is annular in shape, and the annular liquid guiding cavity is symmetrically distributed about the central axis of the overall jacket.

[0012] Preferably, the connecting structure includes a first flange, a second flange, fixing screws, nuts and a sealing ring. The second flange is installed at the top end of the connecting pipe. The top end of the second flange is provided with a first flange. The top end of the first flange is installed with a fixing screw. The first flange and the second flange can cooperate to connect the cylinder and the connecting pipe together. The connecting pipe can be fixed to the cylinder by fixing screws and nuts to facilitate the installation of the cylinder. The sealing ring can be made of rubber material, and the sealing ring can enhance the sealing between the flanges.

[0013] Preferably, sealing rings are provided inside the first flange and the second flange, and the outer diameter of the sealing ring is smaller than the inner diameter of the first flange. The sealing ring can enhance the sealing between the flanges.

[0014] Preferably, a clamping block is provided at the bottom end of the first flange, and a clamping groove is provided at the top end of the second flange. The first flange and the second flange constitute a clamping structure, and the clamping structure is easy to disassemble.

[0015] Preferably, a nut is movably connected to the bottom end of the fixing screw, and the nuts are arranged at equal intervals at the bottom end of the fixing screw, and the fixing screw and the nut form a threaded connection.

[0016] Preferably, external threads are evenly arranged on the outer wall of the fixing screw, and internal threads matching the external threads are evenly arranged on the inner wall of the nut. The fixing screw and the nut are threadedly connected, and the connecting pipe can be fixed to the cylinder body by the fixing screw and the nut.

[0017] Preferably, the filtering structure includes a filter box, a filter screen, a cover body and a handle, the filter box is installed on one side of the saturated steam inlet and the water inlet, the top of the filter box is movably connected to the cover body, and the bottom end of the cover body is installed with a filter screen, the top end of the cover body is installed with a handle, the filter box and the cover body form a snap-fit ​​structure, the filter screen is fixed to the bottom end of the cover body, and the filter screen can be installed inside the filter box by closing the cover body, the filter box can filter the water and steam entering the inside of the overall jacket to prevent dust and impurities from entering the inside of the overall jacket, and the handle can be grasped to facilitate the disassembly and assembly of the cover body.

[0018] The novel dual-purpose riser superheater provided by the utility model has the advantages that: by installing an integral jacket on the outer side of the cylinder, a large amount of high-temperature raw coal gas will be produced in the carbonization chamber under anaerobic distillation, and the raw coal gas will flow from bottom to top through the inner cylinder of the riser, and the heat will be transferred to the arc cavity through the inner cylinder of the riser superheater, and the saturated steam will enter the annular guide cavity from the saturated steam inlet, and will be evenly distributed into the arc cavity to exchange heat with the raw coal gas to generate superheated steam, and finally be discharged from the superheated steam outlet, and the deoxygenated water will enter the integral jacket from the water inlet at the lower end, and will flow outside the arc cavity to generate a steam-water mixture. The steam is discharged from the water-steam mixture port. By combining the integral jacket and coil structure, the advantages of the integral jacket and coil are inherited, and low-medium-pressure superheated steam with a temperature of ≥400°C can be generated, which strengthens the heat exchange effect of the superheater and improves the service life and practicality. The integral jacket is outside the arc cavity to form a closed steam-water space, generate a steam-water mixture, enhance the thermal conductivity of the arc cavity and protect the riser. When the weld of the arc cavity leaks, the superheated steam enters the water-steam space without affecting other heat exchange channels, thereby achieving the purpose of improving the heat exchange efficiency of the new dual-purpose riser superheater.

[0019] A filter box is installed on one side of the water inlet and the saturated steam inlet. The filter box and the cover body form a snap-fit ​​structure. The filter screen is fixed at the bottom of the cover body. The filter screen can be installed inside the filter box by closing the cover body. The filter box can filter the water and steam entering the inside of the integral jacket to prevent dust and impurities from entering the inside of the integral jacket. The cover body can be disassembled and assembled conveniently by grabbing the handle, so as to achieve the purpose of facilitating filtering of the new dual-purpose riser superheater.

[0020] By installing a first flange at the top and bottom of the cylinder, the first flange and the second flange can cooperate to connect the cylinder and the connecting pipe together. The fixing screws and nuts form a threaded connection. The connecting pipe can be fixed to the cylinder by the fixing screws and nuts, which is convenient for installing the cylinder. The sealing ring can be made of rubber material, and the sealing ring can enhance the sealing between the flanges, thereby achieving the purpose of facilitating the connection between the new dual-purpose riser superheater and the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0022] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0023] Figure 3 For the utility model Figure 1 A partial cross-section at the center is an enlarged structural diagram;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the connection structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0026] Explanation of the reference numerals in the figure: 1. Cylinder; 2. Jacket structure; 201. Integral jacket; 202. Annular liquid guiding cavity; 203. Arc-shaped cavity; 3. Water inlet; 4. Connection structure; 401. First flange; 402. Second flange; 403. Fixing screw; 404. Nut; 405. Sealing ring; 5. Connecting pipe; 6. Superheated steam outlet; 7. Feed inlet; 8. Feed outlet; 9. Water vapor mixture inlet; 10. Saturated steam inlet; 11. Filter structure; 1101. Filter box; 1102. Filter screen; 1103. Cover; 1104. Handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 5 The utility model provides an embodiment: a novel dual-purpose riser superheater, comprising a connecting pipe 5.

[0029] A connecting structure 4 is installed at the top of the connecting pipe 5, and the connecting structure 4 includes a first flange 401, a second flange 402, a fixing screw 403, a nut 404 and a sealing ring 405. The second flange 402 is installed at the top of the connecting pipe 5, and the first flange 401 is arranged at the top of the second flange 402. A fixing screw 403 is installed at the top of the first flange 401, and the bottom end of the fixing screw 403 is movably connected to a nut 404, and the nuts 404 are arranged at equal intervals at the bottom end of the fixing screw 403.

[0030] External threads are evenly arranged on the outer wall of the fixing screw 403 , and internal threads matching the external threads are evenly arranged on the inner wall of the nut 404 . The fixing screw 403 and the nut 404 are threadedly connected.

[0031] Refer to the attached Figure 1-2 and attached Figure 4-5 As shown, the first flange 401 and the second flange 402 can cooperate to connect the cylinder 1 and the connecting pipe 5 together, and the fixing screws 403 and the nuts 404 form a threaded connection. The connecting pipe 5 can be fixed on the cylinder 1 by the fixing screws 403 and the nuts 404, which is convenient for installing the cylinder 1. The sealing ring 405 can be made of rubber material, and the sealing ring 405 can enhance the sealing between the flanges.

[0032] A cylinder 1 is installed at the top of the connecting pipe 5, an inlet 7 is provided at the bottom end of the cylinder 1, a discharge port 8 is provided at the top end of the cylinder 1, a jacket structure 2 is installed on the outside of the cylinder 1, and the jacket structure 2 includes an integral jacket 201, an annular liquid guiding cavity 202 and an arc-shaped cavity 203, the arc-shaped cavity 203 is installed on the outside of the cylinder 1, an integral jacket 201 is provided on the outside of the arc-shaped cavity 203, an annular liquid guiding cavity 202 is provided at the top and bottom ends of the integral jacket 201, the shape of the annular liquid guiding cavity 202 is annular, and the annular liquid guiding cavity 202 is symmetrically distributed about the central axis of the integral jacket 201.

[0033] Refer to the attached Figure 1-3As shown, the carbonization chamber will produce a large amount of high-temperature raw coal gas under oxygen-free carbonization. The raw coal gas flows from bottom to top through the inner tube of the riser, and transfers heat to the arc cavity 203 through the inner tube of the riser superheater. Saturated steam enters the annular guide cavity from the saturated steam inlet 10, is evenly distributed into the arc cavity 203, and generates superheated steam after heat exchange with the raw coal gas, and is finally discharged from the superheated steam outlet 6. Deoxygenated water enters the integral jacket 201 from the lower water inlet 3, flows outside the arc cavity, and generates a steam-water mixture, which is discharged from the water-steam mixture outlet 9. A new dual-purpose riser superheater is developed by combining the integral jacket 201 and the coil structure. The novel dual-purpose riser superheater inherits the advantages of the jacket and the coil, can generate superheated steam of low and medium pressure and ≥400°C, strengthens the heat exchange effect of the superheater, and improves the service life and practicality. The integral jacket 201 is outside the arc cavity to form a closed steam-water space, generate a steam-water mixture, enhance the thermal conductivity of the arc cavity and protect the riser. When the weld of the arc cavity leaks, the superheated steam enters the water vapor space without affecting other heat exchange channels.

[0034] A superheated steam outlet 6 is installed at the bottom end of one side of the jacket structure 2, a water inlet 3 is installed at the bottom end of the other side of the jacket structure 2, a water vapor mixture inlet 9 is installed at the top end of one side of the jacket structure 2, a saturated steam inlet 10 is installed at the top end of the other side of the jacket structure 2, a filter structure 11 is installed on one side of the saturated steam inlet 10 and the water inlet 3, the filter structure 11 includes a filter box 1101, a filter screen 1102, a cover body 1103 and a handle 1104, the filter box 1101 is installed on one side of the saturated steam inlet 10 and the water inlet 3, the top end of the filter box 1101 is movably connected to the cover body 1103, and the bottom end of the cover body 1103 is installed with a filter screen 1102, and the top end of the cover body 1103 is installed with a handle 1104.

[0035] Refer to the attached Figure 1 and attached Figure 3 As shown, the filter box 1101 and the cover body 1103 form a snap-fit ​​structure, and the filter screen 1102 is fixed to the bottom end of the cover body 1103. The filter screen 1102 can be installed inside the filter box 1101 by closing the cover body 1103. The filter box 1101 can filter the water and steam entering the interior of the integral jacket 201 to prevent dust and impurities from entering the interior of the integral jacket 201. The handle 1104 can be grasped to facilitate the disassembly and assembly of the cover body 1103.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel dual-purpose riser superheater, comprising a connecting pipe (5); Features: The top end of the connecting pipe (5) is provided with a connecting structure (4), and the top end of the connecting pipe (5) is provided with a cylinder (1); The bottom end of the cylinder (1) is provided with a material inlet (7), the top end of the cylinder (1) is provided with a material outlet (8), the outer side of the cylinder (1) is provided with a jacket structure (2), and the jacket structure (2) comprises an integral jacket (201), an annular liquid guide cavity (202) and an arc-shaped cavity (203), and the arc-shaped cavity (203) is provided on the outer side of the cylinder (1); A superheated steam outlet (6) is installed at the bottom end of one side of the jacket structure (2), a water inlet (3) is installed at the bottom end of the other side of the jacket structure (2), a water vapor mixture inlet (9) is installed at the top end of one side of the jacket structure (2), a saturated steam inlet (10) is installed at the top end of the other side of the jacket structure (2), and a filtering structure (11) is installed on one side of the saturated steam inlet (10) and the water inlet (3).

2. A novel dual-purpose riser superheater according to claim 1, characterized in that: An integral jacket (201) is provided on the outer side of the arc-shaped cavity (203), and an annular liquid guiding cavity (202) is provided at the top and bottom ends of the integral jacket (201).

3. A novel dual-purpose riser superheater according to claim 1, characterized in that: The annular liquid guiding cavity (202) is annular in shape, and the annular liquid guiding cavity (202) is symmetrically distributed about the central axis of the overall jacket (201).

4. A novel dual-purpose riser superheater according to claim 1, characterized in that: The connection structure (4) comprises a first flange (401), a second flange (402), a fixing screw (403), a nut (404) and a sealing ring (405); the second flange (402) is installed at the top end of the connecting pipe (5); the first flange (401) is arranged at the top end of the second flange (402); and the fixing screw (403) is installed at the top end of the first flange (401).

5. A novel dual-purpose riser superheater according to claim 4, characterized in that: A sealing ring (405) is disposed inside the first flange (401) and the second flange (402), and the outer diameter of the sealing ring (405) is smaller than the inner diameter of the first flange (401).

6. A novel dual-purpose riser superheater according to claim 4, characterized in that: A clamping block is provided at the bottom end of the first flange (401), and a clamping groove is provided at the top end of the second flange (402), so that the first flange (401) and the second flange (402) form a clamping structure.

7. A novel dual-purpose riser superheater according to claim 4, characterized in that: The bottom end of the fixing screw (403) is movably connected to a nut (404), and the nuts (404) are arranged at equal intervals at the bottom end of the fixing screw (403).

8. A novel dual-purpose riser superheater according to claim 4, characterized in that: External threads are evenly arranged on the outer wall of the fixing screw (403), and internal threads that cooperate with the external threads are evenly arranged on the inner wall of the nut (404). The fixing screw (403) and the nut (404) are threadedly connected.

9. A novel dual-purpose riser superheater according to claim 1, characterized in that: The filtering structure (11) comprises a filtering box (1101), a filter screen (1102), a cover body (1103) and a handle (1104); the filtering box (1101) is installed on one side of the saturated steam inlet (10) and the water inlet (3); the top end of the filtering box (1101) is movably connected to the cover body (1103), and the bottom end of the cover body (1103) is installed with the filter screen (1102); and the top end of the cover body (1103) is installed with the handle (1104).

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