Treatment device for condensate in torch combustion gas

Abstract

The utility model relates to the technical field of condensate treatment, in particular to a device for treating condensate in torch combustion gas, which is applied to a torch barrel and comprises a filter cartridge, a spiral channel, a filter element, a bent pipe, a heating pipeline and a heating jacket, a centrifugal fan is mounted at the input end of the top of the filter cartridge, the spiral channel is arranged on the inner wall of the filter cartridge, and the filter element is arranged in the spiral channel. The filter elements are arranged on the inner top wall and the inner bottom wall of the spiral channel at intervals, the bent pipe is arranged on the lower side of the filter cartridge in a communicating mode and communicated with an inlet of the torch barrel through the filter, the heating pipeline is installed on the outer wall of the filter cartridge, and the heating sleeve is arranged at an outlet of the torch barrel. And the heating sleeve is communicated with the heating pipeline through a water circulation system and is used for heating the filter cartridge by utilizing heat generated by heating of the torch barrel body, and through multi-stage separation, waste heat recovery and a modular structure, the condensate removal rate is remarkably increased, and the energy consumption and the maintenance cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of condensate treatment technology, specifically to a device for treating condensate in flare combustion gases. Background Technology

[0002] Flare combustion is commonly used to treat industrial waste gas, especially in petrochemical plants and oil refineries. It is a special combustion facility used to treat combustible or toxic combustible gases that cannot be recovered or reprocessed in these places. It is an important measure to ensure safe production in factories and reduce environmental pollution. These gases may contain unburned hydrocarbons, acidic gases and other impurities. The condensate is formed by the condensation caused by the temperature drop of the gas during transportation. If it is directly discharged for combustion, the condensate will be discharged into the external atmosphere or drift to the ground with the flow of gas, causing environmental pollution. Therefore, condensate treatment is required before combustion. Utility Model Content

[0003] This invention proposes a device for treating condensate in flare combustion gases, which solves the problem in the prior art where condensate contained in industrial waste gas is discharged into the environment along with the gas flow during combustion, causing environmental pollution.

[0004] The technical solution of this utility model is as follows:

[0005] A device for treating condensate in flare combustion gas, applied to a flare cylinder, includes a filter cylinder, a spiral channel, filter elements, a bend, a heating pipe, and a heating jacket. A centrifugal fan is installed at the top inlet of the filter cylinder. The spiral channel is disposed on the inner wall of the filter cylinder. The filter elements are arranged at intervals on the inner top and bottom walls of the spiral channel. The bend is connected to the lower side of the filter cylinder and is connected to the inlet of the flare cylinder through a filter. The heating pipe is installed on the outer wall of the filter cylinder. The heating jacket is disposed at the outlet of the flare cylinder and is connected to the heating pipe through a water circulation system for heating the filter cylinder using the heat generated by heating the flare cylinder.

[0006] Furthermore, the filter element is provided with a flange on its exterior, and the side wall of the filter cylinder is provided with a through hole suitable for the filter element to pass through, and a flange groove for flange mounting is provided on the through hole. The flange is mounted on the flange groove by bolts and gaskets.

[0007] Furthermore, the water circulation system includes a water tank and a water pump. The input end of the water pump is connected to the bottom output end of the water tank, and the output end of the water pump is connected to the input end of the heating jacket. The output end of the heating jacket is connected to the bottom input end of the heating pipe, and the bottom output end of the heating pipe is connected to the top input end of the water tank.

[0008] Based on the aforementioned scheme, a drive shaft is provided at the central axis position of the filter cylinder, and the drive shaft is coaxially connected to the central rotating shaft of the centrifugal fan, with spiral fan blades provided on the drive shaft.

[0009] More preferably, the angle between the spiral fan blades and the horizontal plane is greater than the angle between the spiral channel and the horizontal plane.

[0010] Based on the aforementioned scheme, the filter further includes a movable tube and fixed tubes. Fixed tubes are provided on both sides of the movable tube, and the two fixed tubes are respectively connected to the bend and the inlet of the flare tube. The top of the movable tube is rotatably connected to the top of the two fixed tubes through a rotating shaft. A fixed frame is provided inside the filter.

[0011] The fixed frame has multiple conical holes, and a placement cavity is provided inside the fixed frame. Multiple ventilation holes communicating with the placement cavity are opened on the outer wall of the fixed frame and the outer wall of the conical holes. The placement cavity is filled with activated carbon adsorbent.

[0012] Furthermore, the inner wall of the conical hole is also provided with a plurality of angular grooves around its circumference, and the side wall of the angular grooves is also provided with vent holes communicating with the placement cavity.

[0013] Furthermore, the movable tube and the fixed tube are provided with pipe clamps on their exteriors.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, by setting up multi-stage filtration and lengthening and optimizing the gas flow path, the separation effect of condensate is further enhanced. By setting up centrifugal fan and spiral channel, the contact time and adsorption area between condensate in gas and filter element are enhanced.

[0016] 2. In this utility model, by setting up a heating jacket and heating pipe, the residual heat from the combustion of the torch cylinder is used to heat the outer wall of the filter cylinder, which avoids the condensation of liquid in the gas due to temperature, ensures that the liquid condensate is effectively adsorbed, and at the same time realizes heat recovery and reduces energy consumption.

[0017] 3. In this utility model, through multi-stage purification and waste heat utilization, the problems of low efficiency, high energy consumption and difficult maintenance of traditional flare condensate treatment devices are systematically solved. At the same time, it also has environmental protection, economy and reliability, which meets the upgrading needs of industrial waste gas treatment. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0021] Figure 3 This is a schematic diagram of the connection structure of the heating pipe, heating jacket, water pump and water tank in this utility model;

[0022] Figure 4 This is a cross-sectional view of the filter cartridge portion and a structural schematic diagram showing its disassembled state with the centrifugal fan in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure connecting the centrifugal fan, drive shaft, and spiral fan blades in this utility model;

[0024] Figure 6 This is a schematic diagram of the spiral channel and filter element installation in this utility model;

[0025] Figure 7 This is a structural diagram showing the disassembled state of the bent pipe, pipe clamp, fixed pipe, and movable pipe in this utility model.

[0026] Figure 8 This is a structural schematic diagram of the bent pipe, pipe clamp, fixed pipe and movable pipe in this utility model from another perspective of the exploded state;

[0027] Figure 9 In this utility model Figure 4 A magnified schematic diagram of the partial structure at point A in the middle;

[0028] Figure 10 In this utility model Figure 7 A magnified schematic diagram of the structure at point B in the middle.

[0029] In the diagram: 1. Flare cylinder; 2. Filter cylinder; 3. Spiral channel; 4. Filter element; 5. Bend; 6. Heating pipe; 7. Heating jacket; 8. Centrifugal fan; 9. Flange; 10. Water tank; 11. Water pump; 12. Drive shaft; 13. Spiral fan blade; 14. Movable pipe; 15. Fixed pipe; 16. Fixed frame; 17. Conical hole; 18. Angle groove; 19. Pipe clamp; 20. Electromagnetic control valve one; 21. Electromagnetic control valve two; 22. Condensate concentration detection sensor. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0031] like Figures 1-10 As shown, this embodiment proposes a device for treating condensate in flare combustion gas, applied to flare cylinder 1, including a filter cylinder 2, a spiral channel 3, a filter element 4, a bend 5, a heating pipe 6, and a heating jacket 7. A centrifugal fan 8 is installed at the top inlet end of the filter cylinder 2, and the spiral channel 3 is disposed on the inner wall of the filter cylinder 2, as shown. Figure 6 As shown, the spiral channel 3 is formed by two spiral plates with a gap between them. The gas to be processed is tangentially conveyed into the filter cartridge 2 by the centrifugal fan 8, flowing along the spiral channel 3. This increases the gas flow path within the limited space of the filter cartridge 2. Filter elements 4 are spaced apart on the inner top and bottom walls of the spiral channel 3. As the gas flows, the filter elements 4 continuously adsorb condensate contained within the gas, reducing condensate discharge. A flange 9 is provided on the outside of the filter element 4. Through holes suitable for the filter element 4 to pass through are provided on the side wall of the filter cartridge 2, and flange grooves for mounting the flange 9 are provided in the through holes. The flange 9 is mounted on the flange groove using bolts and gaskets. Please refer to [reference needed]. Figure 9 The filter element 4 can use adsorbents such as activated carbon or molecular sieves, and the filter element 4 is provided with a metal mesh sleeve to limit the use of adsorbents such as activated carbon or molecular sieves. The metal mesh sleeve is connected to the flange 9 by threads (which is known technology and is not shown in the figure), which facilitates the disassembly and replacement of adsorbents such as activated carbon or molecular sieves. The flange 9 can also be disassembled by bolts. A sealing gasket is placed between the flange 9 and the flange groove to ensure a seal, thereby facilitating the replacement of adsorbents such as activated carbon or molecular sieves.

[0032] like Figures 1-2As shown, in this embodiment, the bend 5 is connected to the lower side of the filter cylinder 2. The installation position of the bend 5 and the filter cylinder 2 is higher than the bottom of the filter cylinder 2. The bend 5 is connected to the inlet of the torch cylinder 1 through a filter. The heating pipe 6 is spirally wound around the outer wall of the filter cylinder 2. The heating sleeve 7 is set at the outlet of the torch cylinder 1. The heating sleeve 7 and the heating pipe 6 are connected through a water circulation system. By setting the bend 5, the gas impacts the bottom of the filter cylinder 2 and then enters the bend 5, which reduces the flow velocity of the gas and separates some of the condensate from the gas again. Due to the reduced flow velocity, some of the condensate remains at the bottom of the filter cylinder 2 due to gravity, further reducing the movement of the condensate with the airflow and enhancing the condensate separation effect. In addition, a pipe and valve are installed at the bottom of the filter cylinder 2 to facilitate the periodic discharge of the condensate.

[0033] In addition, such as Figure 3 As shown, in this embodiment, the water circulation system includes a water tank 10 and a water pump 11. The input end of the water pump 11 is connected to the bottom output end of the water tank 10, and the output end of the water pump 11 is connected to the input end of the heating jacket 7. The output end of the heating jacket 7 is connected to the bottom input end of the heating pipe 6, and the bottom output end of the heating pipe 6 is connected to the top input end of the water tank 10. The water circulation system is filled with water during use. The water tank 10, as a compensation mechanism, ensures sufficient water supply in the heating pipe 6, heating jacket 7, and corresponding pipelines through the low-outlet and high-inlet configuration of its output and input ends. The water pump 11 drives the water to circulate in the pipeline. By installing the heating jacket 7 on the combustion outlet of the torch body 1, the heat generated by combustion can be transferred to the water in the heating jacket 7. The heated water is transported to the heating pipe 6 through the pipeline to heat the filter cartridge 2. This not only effectively utilizes the waste heat of combustion but also heats the filter cartridge 2 with the waste heat, avoiding the phenomenon that condensate in the gas cannot be well adsorbed.

[0034] Based on the aforementioned solutions, such as Figures 4-5 As shown, a drive shaft 12 is located at the central axis of the filter cartridge 2, and the drive shaft 12 is coaxially connected to the central rotating shaft of the centrifugal fan 8. A spiral fan blade 13 is installed on the drive shaft 12. The rotation of the centrifugal fan 8 can cause the drive shaft 12 to rotate, thereby causing the spiral fan blade 13 to rotate. When the spiral fan blade 13 rotates, it can better blow the gas into the spiral channel 3, enhancing the contact effect between the condensate in the gas and the filter element 4. The angle between the spiral fan blade 13 and the horizontal plane is greater than the angle between the spiral channel 3 and the horizontal plane, increasing the area of ​​the spiral fan blade 13 for blowing the gas. At the same time, the spiral fan blade 13 also has the function of scattering the condensate, so that it can be better adsorbed by the filter element 4.

[0035] Based on the aforementioned solutions, such as Figures 7-8As shown, the filter further includes a movable tube 14 and fixed tubes 15. Fixed tubes 15 are provided on both sides of the movable tube 14, and the two fixed tubes 15 are respectively connected to the bend 5 and the inlet of the flare tube 1. The top of the movable tube 14 is rotatably connected to the top of the two fixed tubes 15 via a rotating shaft. A fixed frame 16 is snapped into the filter, and multiple conical holes 17 are provided on the fixed frame 16. A placement cavity is provided inside the fixed frame 16. Multiple ventilation holes communicating with the placement cavity are opened on the outer wall of the fixed frame 16 and the outer wall of the conical holes 17. The placement cavity is filled with activated carbon adsorbent. The rotation of the movable tube 14 and the fixed tubes 15 facilitates the replacement of the activated carbon adsorbent inside the fixed frame 16 (other adsorbents, such as molecular sieves, can also be used). Please refer to [reference needed]. Figure 10 The conical hole 17 has an inlet larger than its outlet, which facilitates gas outflow and prevents condensate backflow. Multiple angular grooves 18 are also circumferentially arranged on the inner wall of the conical hole 17, and vent holes communicating with the placement cavity are also provided on the side walls of the angular grooves 18. The multiple angular grooves 18 increase the contact area between the conical hole 17 and the gas, thereby enhancing the contact effect between the condensate in the gas and the adsorbent. A pipe clamp 19 is provided on the outside of the movable tube 14 and the fixed tube 15. The pipe clamp 19 ensures a tight connection between the fixed tube 15 and the movable tube 14, and a sealing ring is provided on the inner wall of the pipe clamp 19 to prevent gas leakage. Disassembly is performed by removing the pipe clamp 19, rotating the movable tube 14, and then replacing the fixed frame 16.

[0036] It should be noted that, as Figures 1-2 As shown, a detection chamber is provided inside the flare cylinder 1. The inlet of the detection chamber is connected to the fixed pipe 15, and the outlet of the detection chamber is connected to the inlet of the flare cylinder 1 via an electromagnetic control valve 20. A return pipe is connected to one side of the detection chamber, and an electromagnetic control valve 21 is installed on the return pipe. The other end of the return pipe is connected to the inlet of the centrifugal fan 8. A condensate concentration detection sensor 22 is installed inside the detection chamber. During normal use (i.e., when the condensate concentration meets the standard), the electromagnetic control valve 20 is normally open, and the electromagnetic control valve 21 is normally closed. The condensate concentration is detected by the condensate concentration detection sensor 22. If the concentration does not meet the standard, a signal is transmitted to the electromagnetic control valve 20, causing it to close, while simultaneously opening the electromagnetic control valve 21, thereby sending the gas back into the filter cartridge 2 for further filtration. The filter element 4 and the filter are both detachable and easily replaceable components. The replacement frequency can be determined based on actual usage data, thus maintaining the effective adsorption of condensate by the filter cartridge 2 and the filter.

[0037] Working principle: This device for treating condensate in the combustion gas of a torch operates by first connecting the gas to be treated to the inlet of a centrifugal fan 8. Then, the centrifugal fan 8 is turned on, propelling the gas tangentially into the filter cartridge 2. Due to the rotation of the gas, and constrained by the spiral channel 3, the spiral fan blades 13 agitate the gas within the spiral channel 3. The gas then comes into greater contact with the filter elements 4 arranged vertically within the spiral channel 3, adsorbing the condensate. After adsorption, the gas spirals down to the bottom of the filter cartridge 2 and collides with it, reducing its kinetic energy and velocity. The gas is discharged again through the bend 5 to the filter. Due to the decrease in gas kinetic energy, some condensate cannot flow upward with the gas into the bend 5 under the action of gravity. Therefore, some condensate will remain inside the lower side of the filter cartridge 2. Finally, the gas is re-adsorbed through the filter. After adsorption, the gas enters the detection chamber of the flare tube 1. Gas that meets the requirements will enter the outlet of the flare tube 1 and be ignited and burned by the burner. If it does not meet the requirements, the condensate concentration detection sensor 22 will transmit a signal to the electromagnetic control valve 1 20 to close it, and at the same time open the electromagnetic control valve 21, so that the gas is delivered back into the filter cartridge 2 for filtration again.

[0038] In addition, when the gas is burning, the heat will heat the water inside the heating jacket 7. Under the action of the water pump 11, the heated water is transported upward from the lower side of the heating pipe 6 and comes into contact with the outer wall of the filter cartridge 2 to achieve heat exchange. The cooled hot water flows back into the water tank 10 and can be recycled again. The water tank 10 is a known device with a visual glass panel and a water inlet. It can be observed and replenished regularly.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for treating condensate in flare combustion gases, applied to a flare cylinder (1), characterized in that, The utility model relates to a filter for flare cylinder body (1) of flare system, which comprises the following: A filter cartridge (2) is provided with a centrifugal fan (8) at the top input end; A spiral channel (3) is arranged on the inner wall of the filter cartridge (2); Filter elements (4) are arranged on the inner top wall and the inner bottom wall of the spiral channel (3) in a spaced manner; An elbow pipe (5) is arranged on the lower side of the filter cartridge (2) in a communication manner, and the elbow pipe (5) is communicated with the inlet of the flare cylinder body (1) through a filter; A heating pipe (6) is arranged on the outer wall of the filter cartridge (2); A heating jacket (7) is arranged at the outlet of the flare cylinder body (1), and the heating jacket (7) is communicated with the heating pipe (6) through a water circulation system.

2. The apparatus for processing condensate in flare combustion gas according to claim 1, wherein The filter elements (4) are provided with flanges (9) on the outer side, and the sidewall of the filter cartridge (2) is provided with a through hole suitable for the filter elements (4) to pass through, and a flange groove is arranged on the through hole for the flanges (9) to be embedded, and the flanges (9) are arranged on the flange groove through bolts and sealing pads.

3. The apparatus for processing condensate from flare combustion gases of claim 1, wherein, The water circulation system comprises a water tank (10) and a water pump (11), the input end of the water pump (11) is communicated with the bottom output end of the water tank (10), the output end of the water pump (11) is communicated with the input end of the heating jacket (7), the output end of the heating jacket (7) is communicated with the bottom input end of the heating pipe (6), and the bottom output end of the heating pipe (6) is communicated with the top input end of the water tank (10).

4. The apparatus for processing condensate in flare combustion gas according to claim 1, wherein A driving shaft (12) is arranged at the position of the central axis of the filter cartridge (2), and the driving shaft (12) is coaxially connected with the central rotating shaft of the centrifugal fan (8), and the driving shaft (12) is provided with spiral vanes (13).

5. A device for treating condensate in flare combustion gases according to claim 4, wherein The included angle between the spiral vanes (13) and the horizontal plane is larger than the included angle between the spiral channel (3) and the horizontal plane.

6. The apparatus for processing condensate from flare combustion gases of claim 1, wherein, The filter comprises movable pipes (14) and fixed pipes (15), the movable pipes (14) are provided with the fixed pipes (15) on both sides, and the two fixed pipes (15) are respectively communicated with the elbow pipe (5) and the inlet of the flare cylinder body (1), the top of the movable pipe (14) is rotatably connected with the top of the two fixed pipes (15) through a rotating shaft, a fixed frame (16) is arranged inside the filter, a plurality of conical holes (17) are arranged on the fixed frame (16), a placing cavity is arranged in the fixed frame (16), a plurality of air holes are arranged on the outer sidewall of the fixed frame (16) and the outer sidewall of the conical hole (17) and communicated with the placing cavity, and the placing cavity is filled with activated carbon adsorbent.

7. A device for treating condensate in flare combustion gases according to claim 6, wherein A plurality of angular grooves (18) are circumferentially arranged on the inner wall of the conical hole (17), and the sidewall of the angular groove (18) is also provided with an air hole communicated with the placing cavity.

8. The apparatus for processing condensate from flare combustion gases of claim 6, wherein, Pipe clamps (19) are arranged on the outer sides of the movable pipe (14) and the fixed pipe (15).

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