A fire-tube boiler for AES production with integrated sulfonation tail gas waste heat recovery

Abstract

This utility model discloses a fire-tube boiler specifically designed for AES production with integrated waste heat recovery from sulfonation tail gas. The boiler includes a fire-tube boiler body, an annular waste heat recovery seat fixedly mounted on the surface of the boiler body, a diverter pipe fixedly mounted on the top of the inner side of the annular waste heat recovery seat, and a collector pipe fixedly mounted on the bottom of the inner side of the annular waste heat recovery seat. This fire-tube boiler, by integrating the annular waste heat recovery seat on the surface of the boiler body, can fully recover the waste heat from the sulfonation tail gas and use it to preheat the boiler feedwater. This reduces fuel consumption required for boiler heating, improves energy efficiency, and lowers the production cost of AES. Integrating the waste heat recovery system with the fire-tube boiler body reduces additional equipment and piping, lowers investment costs and floor space, simplifies the system structure, improves system reliability and stability, and facilitates equipment installation, maintenance, and management.

Description

Technical Field

[0001] This utility model relates to the field of chemical production equipment, specifically a fire-tube boiler for AES production that integrates waste heat recovery from sulfonation tail gas. Background Technology

[0002] In the AES production process, fire-tube boilers are key equipment for providing steam and other heat energy. Simultaneously, the sulfonation reaction generates a large amount of high-temperature exhaust gas containing significant waste heat. Typically, waste heat recovery devices are installed to recover this heat. However, existing fire-tube boilers have low integration with exhaust gas waste heat recovery systems, usually requiring additional complex equipment and piping to achieve waste heat recovery. This not only increases equipment investment costs and floor space requirements but also raises system maintenance difficulty and failure rates.

[0003] To address the aforementioned issues, a fire-tube boiler specifically designed for AES production with integrated sulfonation tail gas waste heat recovery is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a fire-tube boiler specifically designed for AES production with integrated sulfonation tail gas waste heat recovery, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire-tube boiler for AES production with integrated sulfonation tail gas waste heat recovery, comprising a fire-tube boiler body, an annular waste heat recovery seat fixedly disposed on the surface of the fire-tube boiler body, a diverter pipe fixedly disposed on the top of the inner side of the annular waste heat recovery seat, a collector pipe fixedly disposed on the bottom of the inner side of the annular waste heat recovery seat, uniformly distributed heat exchange tubes fixedly connected between the diverter pipe and the collector pipe, a filter seat fixedly disposed in the middle of one side of the fire-tube boiler body, a sealing plate engaged on the side of the filter seat away from the fire-tube boiler body, a first filter screen, a second filter screen and a third filter screen fixedly disposed sequentially from top to bottom on the inner side of the sealing plate, an exhaust port opened on the top of one side of the fire-tube boiler body, an exhaust pipe fixedly connected in the middle of the exhaust port, and the bottom end of the exhaust pipe connected to the filter seat.

[0006] By integrating an annular waste heat recovery seat onto the surface of the fire-tube boiler body, the waste heat in the sulfonation tail gas can be fully recovered and used to preheat the boiler feedwater. This reduces the fuel consumption required for boiler heating, improves energy efficiency, and lowers the production cost of AES (Automatic Energy Management System). Integrating the waste heat recovery system with the fire-tube boiler body reduces additional equipment and piping, lowers investment costs and floor space, simplifies the system structure, improves system reliability and stability, and facilitates equipment installation, maintenance, and management.

[0007] Preferably, the bottom end of the filter base is fixedly connected to an air guide pipe, the top end of the air guide pipe extends into the interior of the annular waste heat recovery base and is connected to a diversion pipe, and the bottom of one side of the annular waste heat recovery base is fixedly connected to a cold water inlet pipe, through which cold water is introduced into the annular waste heat recovery base.

[0008] Preferably, the bottom end of the manifold is fixedly connected to a waste discharge pipe, the bottom end of which extends to the outside, through which the waste gas that has undergone heat exchange is discharged.

[0009] Preferably, the top of the fire-tube boiler body on the side away from the exhaust port is provided with a water inlet, and a drain pipe is fixedly connected to the middle of the water inlet. The bottom end of the drain pipe is connected to the annular waste heat recovery seat, and the hot water that has undergone heat exchange is introduced into the fire-tube boiler body from the water inlet through the drain pipe.

[0010] Preferably, three limiting seats are fixedly provided on one side of the inner wall of the filter seat. The three limiting seats are respectively engaged and connected to the first filter screen, the second filter screen and the third filter screen. The setting of the three limiting seats facilitates the limiting of the first filter screen, the second filter screen and the third filter screen.

[0011] Preferably, a sealing groove is provided at the connection between the filter seat and the sealing plate, and the sealing groove is engaged with the sealing plate. The sealing groove facilitates the limiting of the sealing plate.

[0012] Preferably, an auxiliary handle is fixedly connected to the outer side of the sealing plate, which facilitates the assembly and disassembly of the sealing plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by integrating an annular waste heat recovery seat on the surface of the fire-tube boiler body, the waste heat in the sulfonation tail gas can be fully recovered and used to preheat the boiler feedwater, which can reduce the fuel consumption required for boiler heating, improve energy utilization efficiency, and reduce the production cost of AES. Integrating the waste heat recovery system with the fire-tube boiler body can reduce additional equipment and pipelines, reduce equipment investment costs and floor space, simplify the system structure, improve the reliability and stability of the system, and facilitate the installation, maintenance and management of the equipment. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a front sectional view of the present invention;

[0016] Figure 3 This is an enlarged view of part A of this utility model;

[0017] Figure 4 This is a cross-sectional view of the filter base of this utility model.

[0018] In the diagram: 1. Fire-tube boiler body; 2. Annular waste heat recovery seat; 3. Diverter pipe; 4. Heat exchanger pipe; 5. Collector pipe; 6. Waste discharge pipe; 7. Cold water inlet pipe; 8. Filter seat; 9. Air guide pipe; 10. Exhaust port; 11. Exhaust pipe; 12. Water inlet; 13. Drain pipe; 14. Sealing plate; 15. Sealing groove; 16. Auxiliary handle; 17. First filter screen; 18. Second filter screen; 19. Third filter screen; 20. Limiting seat. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please see Figure 1-4 This utility model provides a fire-tube boiler for AES production with integrated sulfonation tail gas waste heat recovery, including a fire-tube boiler body 1. An annular waste heat recovery seat 2 is fixedly installed on the surface of the fire-tube boiler body 1. A diversion pipe 3 is fixedly installed at the top of the inner side of the annular waste heat recovery seat 2, and a collecting pipe 5 is fixedly installed at the bottom of the inner side of the annular waste heat recovery seat 2. A uniformly distributed heat exchange pipe 4 is fixedly connected between the diversion pipe 3 and the collecting pipe 5. A filter seat 8 is fixedly installed in the middle of one side of the fire-tube boiler body 1. A sealing plate 14 is engaged on the side of the filter seat 8 away from the fire-tube boiler body 1. A first filter screen 17, a second filter screen 18, and a third filter screen 1 are fixedly installed on the inner side of the sealing plate 14 from top to bottom. 9. An exhaust port 10 is provided on the top of one side of the fire-tube boiler body 1. An exhaust pipe 11 is fixedly connected to the middle of the exhaust port 10. The bottom end of the exhaust pipe 11 is connected to the filter seat 8. By integrating an annular waste heat recovery seat 2 on the surface of the fire-tube boiler body 1, the waste heat in the sulfonation tail gas can be fully recovered and used to preheat the boiler feedwater. This can reduce the fuel consumption required for boiler heating, improve energy utilization efficiency, and reduce the production cost of AES. Integrating the waste heat recovery system with the fire-tube boiler body 1 can reduce additional equipment and pipelines, reduce equipment investment costs and floor space, simplify the system structure, improve system reliability and stability, and facilitate equipment installation, maintenance and management.

[0021] The bottom of the filter seat 8 is fixedly connected to the air guide pipe 9. The top of the air guide pipe 9 extends into the interior of the annular waste heat recovery seat 2 and is connected to the diversion pipe 3. The bottom of one side of the annular waste heat recovery seat 2 is fixedly connected to the cold water inlet pipe 7. The bottom of the collector pipe 5 is fixedly connected to the waste discharge pipe 6. The bottom of the waste discharge pipe 6 extends to the outside. The top of the fire tube boiler body 1 on the side away from the exhaust port 10 is provided with a water inlet 12. The middle of the water inlet 12 is fixedly connected to the drain pipe 13. The bottom of the drain pipe 13 is connected to the annular waste heat recovery seat 2.

[0022] In use, cold water is introduced into the annular waste heat recovery seat 2 through the cold water inlet pipe 7, the waste gas after heat exchange is discharged through the waste discharge pipe 6, and the hot water after heat exchange is introduced into the fire tube boiler body 1 from the water inlet 12 through the drain pipe 13.

[0023] Three limiting seats 20 are fixedly installed on one side of the inner wall of the filter seat 8. The three limiting seats 20 are respectively engaged and connected to the first filter screen 17, the second filter screen 18 and the third filter screen 19. A sealing groove 15 is opened at the connection between the filter seat 8 and the sealing plate 14. The sealing groove 15 is engaged and connected to the sealing plate 14. An auxiliary handle 16 is fixedly connected to the outer side of the sealing plate 14.

[0024] In use, the three limiting seats 20 facilitate the limiting of the first filter screen 17, the second filter screen 18 and the third filter screen 19, the sealing groove 15 facilitates the limiting of the sealing plate 14, and the auxiliary handle 16 facilitates the disassembly and assembly of the sealing plate 14.

[0025] In this embodiment, the exhaust gas from the fire-tube boiler body 1 is introduced into the filter seat 8 through the exhaust pipe 11. The first filter screen 17, the second filter screen 18, and the third filter screen 19 are used to filter out impurities in the exhaust gas. The filtered exhaust gas is then introduced into the diversion pipe 3 through the gas guide pipe 9, and then diverted into several heat exchange tubes 4. Simultaneously, cold water is introduced into the annular waste heat recovery seat 2 through the cold water inlet pipe 7. The exhaust gas and cold water exchange heat in the heat exchange tubes 4, thereby recovering the waste heat from the exhaust gas. This facilitates the heating of the water. Hot water that has undergone heat exchange is introduced from the inlet 12 into the fire-tube boiler body 1 through the drain pipe 13. By integrating the annular waste heat recovery seat 2 on the surface of the fire-tube boiler body 1, the waste heat in the sulfonation tail gas can be fully recovered and used to preheat the boiler feedwater. This can reduce the fuel consumption required for boiler heating, improve energy efficiency, and reduce the production cost of AES. Integrating the waste heat recovery system with the fire-tube boiler body 1 can reduce additional equipment and piping, reduce equipment investment costs and floor space, simplify the system structure, improve system reliability and stability, and facilitate equipment installation, maintenance and management.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fire-tube boiler for AES production with integrated sulfonation tail gas waste heat recovery, comprising a fire-tube boiler body (1), characterized in that: An annular waste heat recovery seat (2) is fixedly installed on the surface of the fire tube boiler body (1). A diversion pipe (3) is fixedly installed on the top of the inner side of the annular waste heat recovery seat (2). A collection pipe (5) is fixedly installed on the bottom of the inner side of the annular waste heat recovery seat (2). A uniformly distributed heat exchange pipe (4) is fixedly connected between the diversion pipe (3) and the collection pipe (5). A filter seat (8) is fixedly installed in the middle of one side of the fire tube boiler body (1). A sealing plate (14) is engaged on the side of the filter seat (8) away from the fire tube boiler body (1). A first filter screen (17), a second filter screen (18) and a third filter screen (19) are fixedly installed on the inner side of the sealing plate (14) from top to bottom. An exhaust port (10) is opened on the top of one side of the fire tube boiler body (1). An exhaust pipe (11) is fixedly connected in the middle of the exhaust port (10). The bottom end of the exhaust pipe (11) is connected to the filter seat (8).

2. The fire-tube boiler for AES production with integrated sulfonation tail gas waste heat recovery as described in claim 1, characterized in that: The bottom end of the filter seat (8) is fixedly connected to the air guide pipe (9), the top end of the air guide pipe (9) extends into the interior of the annular waste heat recovery seat (2) and is connected to the diversion pipe (3), and the bottom of one side of the annular waste heat recovery seat (2) is fixedly connected to the cold water inlet pipe (7).

3. The fire-tube boiler for AES production with integrated sulfonation tail gas waste heat recovery as described in claim 1, characterized in that: The bottom end of the manifold (5) is fixedly connected to the waste discharge pipe (6), and the bottom end of the waste discharge pipe (6) extends to the outside.

4. The fire-tube boiler for AES production with integrated sulfonation tail gas waste heat recovery as described in claim 1, characterized in that: The fire-tube boiler body (1) has a water inlet (12) on the top of the side away from the exhaust port (10). A drain pipe (13) is fixedly connected to the middle of the water inlet (12), and the bottom end of the drain pipe (13) is connected to the annular waste heat recovery seat (2).

5. The fire-tube boiler for AES production with integrated sulfonation tail gas waste heat recovery as described in claim 1, characterized in that: Three limiting seats (20) are fixedly provided on one side of the inner wall of the filter seat (8), and the three limiting seats (20) are respectively engaged and connected to the first filter screen (17), the second filter screen (18) and the third filter screen (19).

6. The fire-tube boiler for AES production with integrated sulfonation tail gas waste heat recovery as described in claim 1, characterized in that: A sealing groove (15) is provided at the connection between the filter seat (8) and the sealing plate (14), and the sealing groove (15) is engaged with the sealing plate (14).

7. The fire-tube boiler for AES production with integrated sulfonation tail gas waste heat recovery as described in claim 1, characterized in that: An auxiliary handle (16) is fixedly connected to the outside of the sealing plate (14).

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