Liquid sulfur trap with partitioning structure

Abstract

This utility model relates to the field of petrochemical equipment technology, and in particular to a liquid sulfur trap with a partitioned structure. The liquid sulfur trap with a partitioned structure provided by this utility model includes a tank, a baffle assembly, and at least two heat transfer components. The tank has a collection chamber, a trapping chamber, and a discharge chamber connected in sequence inside. An air inlet, an air outlet, and a liquid sulfur outlet are provided on the tank. The baffle assembly is located within the trapping chamber and divides the trapping chamber into at least two sub-chambers. At least two heat transfer components are respectively located within the at least two sub-chambers. Each heat transfer component includes a gas channel and a medium channel capable of mutual heat transfer, with the medium channel connected to an external heat exchange medium. At least two air inlets are provided, each used to introduce sulfur-containing process gas into at least two sub-chambers. This effectively solves the problem that traditional liquid sulfur traps cannot maintain high-efficiency sulfur trapping capacity during the melting operation of the heat transfer components, thus improving the sulfur trapping effect.

Description

Technical Field

[0001] This utility model relates to the field of petrochemical equipment technology, and in particular to a liquid sulfur trap with a partition structure. Background Technology

[0002] In the petrochemical and natural gas processing industries, sulfur recovery units are important environmental protection equipment used to recover sulfur from sulfur-containing process gases, thereby reducing environmental pollution and achieving efficient resource utilization. Liquid sulfur traps, as a key component of sulfur recovery units, primarily function to further separate and capture liquid sulfur from sulfur-containing process gases.

[0003] Currently, liquid sulfur traps widely used in industry mainly employ a heat transfer structure. This traditional liquid sulfur trap typically includes a vertically positioned container with an internal heat transfer assembly. As process gas passes through the heat transfer assembly, the temperature of the assembly is adjusted to condense and melt the entrained liquid sulfur. The working principle of the heat transfer assembly is as follows: when the surface temperature of the heat transfer assembly is below the melting point of sulfur, the liquid sulfur in the process gas condenses on its surface; when the surface temperature of the heat transfer assembly is above the melting point of sulfur, the condensed sulfur remelts and flows down, thus cleaning the heat transfer assembly.

[0004] However, traditional heat transfer liquid sulfur traps have a key technical problem in practical applications: they cannot maintain efficient liquid sulfur trapping capacity during the melting and cleaning of the heat transfer components.

[0005] Specifically, during operation, sulfur gradually condenses and accumulates on the surface of the heat transfer components. When the accumulation becomes severe, it is necessary to increase the temperature of the heat transfer components to melt the condensed sulfur and allow it to flow down, thus restoring the unobstructed flow of the heat transfer components. However, during the melting operation, the surface temperature of the heat transfer components rises above the melting point of sulfur. At this point, the sulfur components in the process gas cannot condense on the hot surface of the heat transfer components, resulting in a significant decrease or even complete failure of the heat transfer components' ability to capture sulfur from the gas.

[0006] This creates a key contradiction: on the one hand, the sulfur-containing process gas in the sulfur recovery unit must be processed continuously without stopping the gas supply, as any interruption would lead to the shutdown of the entire production unit and cause huge economic losses; on the other hand, the sulfur capture capacity of the heat transfer components decreases significantly during the melting operation. If process gas continues to be introduced at this time, the sulfur components will not be able to condense and will be lost with the gas, which not only wastes resources but also fails to guarantee the sulfur capture effect at this time, affecting the overall sulfur recovery efficiency. Utility Model Content

[0007] This invention provides a liquid sulfur trap with a partition structure, which can effectively solve the problem that traditional liquid sulfur traps with partition structures cannot maintain high-efficiency sulfur capture capability during the melting operation of heat transfer components, thereby improving the sulfur capture effect.

[0008] This utility model provides a liquid sulfur trap with a partitioned structure, comprising: a tank body, wherein a collection chamber, a trapping chamber, and a discharge chamber are sequentially connected inside the tank body; an air inlet, an air outlet, and a liquid sulfur outlet are provided on the tank body; the air inlet is connected to the trapping chamber, the air outlet is connected to the discharge chamber, and the liquid sulfur outlet is connected to the collection chamber; a partition assembly is disposed in the trapping chamber and divides the trapping chamber into at least two sub-chambers; at least two heat transfer components are respectively disposed in the at least two sub-chambers, each heat transfer component including a gas channel and a medium channel capable of mutual heat transfer, the medium channel being connected to an external heat exchange medium; wherein, at least two air inlets are provided, each used to introduce sulfur-containing process gas into at least two sub-chambers; the temperature of the heat exchange medium is adjustable, and by controlling the temperature of the heat exchange medium, the liquid sulfur entrained in the process gas is circulated and condensed-melted on the surface of the heat transfer components.

[0009] In one possible implementation, the tank is vertically positioned, with the bottom and top of the collection chamber connected to the collection chamber and the discharge chamber, respectively.

[0010] In one possible implementation, the partition assembly includes a vertical plate that divides the collection chamber into two separate chambers, the tops of which are connected to the discharge chamber and the bottoms of which are connected to the collection chamber.

[0011] In one possible implementation, the partition assembly further includes a horizontal plate connected to the bottom of the vertical plate and disposed between one of the sub-chambers and the collection chamber for isolating the sub-chambers and the collection chamber; the liquid sulfur trap also includes a guide pipe that passes through the horizontal plate for connecting the sub-chambers and the collection chamber.

[0012] In one possible implementation, the heat transfer assembly includes multiple spaced heat transfer plates, each with a medium channel inside, and a gas channel formed between two adjacent heat transfer plates.

[0013] In one possible implementation, the heat transfer assembly further includes: an inlet pipe assembly that penetrates the side wall of the tank and is connected to the input end of multiple media channels; and an outlet pipe assembly that penetrates the side wall of the tank and is connected to the output end of multiple media channels.

[0014] In one possible implementation, an air distribution pipe is also included, which is disposed in the chamber and connected to the air inlet for uniformly distributing air to the heat transfer components.

[0015] In one possible implementation, the tank body is also provided with a demister chamber located between the collection chamber and the discharge chamber; the liquid sulfur collector also includes a demister, which is located in the demister chamber.

[0016] In one possible implementation, the outer surface of the tank is provided with a first heat tracing element; and / or, the demister is provided with a second heat tracing element; and / or, the outer surface of the liquid sulfur outlet is provided with a third heat tracing element.

[0017] In one possible implementation, a pressure detection component is also included. This component is mounted on the tank and can detect the pressure difference between the input and output ends of the heat transfer component, serving as a criterion for judging the condensation and melting of liquid sulfur entrained in the process gas.

[0018] This utility model provides a liquid sulfur trap with a partitioned structure. It effectively solves the technical problem of traditional liquid sulfur traps failing to maintain high-efficiency sulfur capture capacity during the melting operation of heat transfer components by arranging a collection chamber, a capture chamber, and a discharge chamber sequentially connected inside the tank. A baffle assembly within the capture chamber further divides it into at least two sub-chambers. Heat transfer components are installed in each of these sub-chambers. The core working principle of this solution is to establish multiple independent capture zones. When the heat transfer component in a certain sub-chamber is in a melting operation state, and the sulfur capture efficiency in the gas decreases significantly, the supply of process gas to that sub-chamber can be immediately stopped. Simultaneously, the process gas is switched to another sub-chamber in a condensation operation state for processing, thus ensuring that the process gas is always processed within heat transfer components with high capture efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the planar structure of a liquid sulfur trap with a partition structure provided by this utility model.

[0021] Figure 2 This is a schematic diagram of the axial cross-sectional structure of a liquid sulfur trap with a partition structure provided by this utility model.

[0022] Figure 3 yes Figure 2 A magnified schematic diagram of the structure at point A.

[0023] Figure label: 1. Tank body; 11. Collection chamber; 12. Capture chamber; 13. Discharge chamber; 14. Air inlet; 15. Air outlet; 16. Liquid sulfur outlet; 17. Defoaming chamber; 2. Partition assembly; 21. Vertical panel; 22. Horizontal panel; 3. Heat transfer components; 31. Gas channel; 32. Medium channel; 33. Heat transfer plate; 34. Liquid inlet pipe assembly; 35. Liquid outlet pipe assembly; 4. Flow guide pipe; 5. Air distribution pipe; 6. Demister; 7. First heat tracing element; 8. Second heat tracing element; 9. Third heat tracing element; 10. Air pressure detection assembly. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The following is combined with Figure 1-3 This utility model provides a liquid sulfur trap with a partitioned structure, comprising: a tank 1, a partition assembly 2, and at least two heat transfer assemblies 3, wherein: The tank body 1 is provided with a collection chamber 11, a capture chamber 12 and a discharge chamber 13 connected in sequence. The tank body 1 is provided with an air inlet 14, an air outlet 15 and a liquid sulfur outlet 16. The air inlet 14 is connected to the capture chamber 12 and is used to introduce process gas into the capture chamber 12. The air outlet 15 is connected to the discharge chamber 13 and is used to discharge the treated gas. The liquid sulfur outlet 16 is connected to the collection chamber 11 and is used to collect and discharge liquid sulfur.

[0026] The baffle assembly 2 is disposed within the collection chamber 12 and divides the collection chamber 12 into at least two sub-chambers. Specifically, the baffle assembly 2 disposed within the collection chamber 12 forms the internal partition structure of the liquid sulfur collector.

[0027] At least two heat transfer components 3 are respectively disposed in at least two compartments. Each heat transfer component 3 includes a gas channel 31 and a medium channel 32 that can transfer heat to each other. The medium channel 32 is connected to an external heat exchange medium.

[0028] The air inlet 14 is provided with at least two ports, which are used to introduce sulfur-containing process gas into at least two sub-chambers respectively; the temperature of the heat exchange medium is adjustable, and by controlling the temperature of the heat exchange medium, the liquid sulfur entrained in the process gas is circulated on the surface of the heat transfer component 3 for condensation and melting.

[0029] In this invention, a liquid sulfur capture method with alternating regional operation is achieved by arranging a collection chamber 11, a capture chamber 12, and a discharge chamber 13 sequentially connected inside the tank body 1, and by installing a partition assembly 2 in the capture chamber 12 to divide it into at least two sub-chambers. Simultaneously, heat transfer components 3 are installed in each of the at least two sub-chambers. This significantly improves the liquid sulfur capture efficiency and equipment operational stability. When the heat transfer component 3 in a certain sub-chamber is in melting operation, its sulfur capture effect on the gas decreases significantly. At this time, the process gas supply to this sub-chamber can be stopped, and the process gas can be introduced into other sub-chambers for liquid sulfur capture, ensuring that the process gas is always processed under a highly efficient capture state.

[0030] Specifically, the internal structure of tank 1 is designed as a three-chamber interconnected pattern. Collection chamber 11 collects the captured liquid sulfur, collection chamber 12 serves as the main liquid sulfur separation area, and discharge chamber 13 is used for the discharge of purified process gas. Baffle assembly 2 forms a physical partition within collection chamber 12, creating independent operating areas. At least two heat transfer components 3 are respectively disposed within at least two separate chambers. Each heat transfer component 3 includes a gas channel 31 and a medium channel 32 capable of mutual heat transfer. The gas channel 31 allows process gas to flow through, and the medium channel 32 connects to an external heat exchange medium. The working mode of heat transfer component 3 is divided into two stages: condensation and melting. In the condensation stage, the low temperature heat exchange medium makes the surface temperature of heat transfer component 3 lower than the melting point of sulfur, and the liquid sulfur in the process gas condenses on the surface of heat transfer component 3. At this time, the sulfur capture effect is the best. In the melting stage, the high temperature heat exchange medium makes the surface temperature of heat transfer component 3 higher than the melting point of sulfur, and the condensed sulfur remelts and drips. However, at this time, the ability of heat transfer component 3 to capture sulfur in the gas is greatly reduced, and it cannot effectively condense new sulfur.

[0031] In one specific embodiment, during the actual operation of the sulfur recovery unit, the sulfur-containing process gas needs to be processed continuously; any interruption will cause the entire production unit to shut down. When a single heat transfer component 3 undergoes melting, its surface temperature rises to 130-150°C, far exceeding the melting point of sulfur (119°C). At this point, the sulfur components in the process gas cannot condense on the surface of the heat transfer component 3, and the capture efficiency drops to almost zero. This invention, through a design of at least two chambers, immediately stops supplying process gas to the left chamber when the heat transfer component 3 in the left chamber needs to undergo melting, and simultaneously switches all process gas to the right chamber for processing, ensuring that the process gas is always processed in the heat transfer component 3 with high capture efficiency. This operating mode ensures that the liquid sulfur capture efficiency remains at a high level of over 99%, avoiding the loss of sulfur components caused by processing process gas in a molten state.

[0032] In related technologies, existing liquid sulfur traps mainly adopt a metal mesh structure, which is a single trapping system with process gas entering from the bottom and exiting from the top. Metal mesh trapping elements are installed inside the trap to capture liquid sulfur. This structure has significant drawbacks: First, the metal mesh mainly relies on physical interception for liquid sulfur separation, making active temperature control impossible, and the sulfur capture efficiency is only about 95%. Second, when the metal mesh is clogged with sulfur and needs cleaning, the process gas supply must be stopped, but the process gas supply cannot be interrupted, otherwise the entire unit needs to be shut down, creating an operational contradiction. Third, during the cleaning process, the process gas cannot be effectively treated, resulting in sulfur loss, which wastes resources and may cause environmental problems.

[0033] In this embodiment of the invention, the aforementioned technical problems are completely solved through a zoned operation design with at least two chambers and corresponding heat transfer components 3. First, the heat transfer components 3 achieve active condensation through temperature control, resulting in higher collection efficiency compared to the passive interception of metal wire mesh. Second, the chamber design allows the process gas to be immediately switched to other zones in a highly efficient condensation state when the heat transfer components 3 in one zone are in a melting state with poor collection efficiency, thus avoiding sulfur component loss due to inefficient processing. Third, this design achieves true continuous operation; the process gas does not need to be interrupted, and the device does not need to be shut down, resolving the contradiction between cleaning and maintenance and continuous operation in traditional technologies. This innovative design not only increases the sulfur component collection efficiency to over 99% but also ensures the continuity and stability of process gas treatment, providing a reliable guarantee for the efficient operation of the sulfur recovery device.

[0034] In some embodiments, the tank 1 is vertically arranged, and the bottom and top of the collection chamber 12 are respectively connected to the collection chamber 11 and the discharge chamber 13.

[0035] In this invention, by vertically arranging the tank 1 and connecting the collection chamber 11 and the discharge chamber 13 to the bottom and top of the trapping chamber 12 respectively, gravity and gas pressure are fully utilized to achieve the natural sedimentation collection of liquid sulfur and the smooth discharge of purified process gas, thereby reducing system resistance and improving separation efficiency. Liquid sulfur sinks naturally under gravity, while the treated process gas rises and is discharged under pressure.

[0036] Specifically, the vertical arrangement of tank 1 creates an ideal gravity separation environment. Process gas enters the collection chamber 12 from the bottom. Under the action of heat transfer component 3, liquid sulfur is condensed and naturally sinks to collection chamber 11 under gravity. Collection chamber 11 is located at the bottom of collection chamber 12, ensuring that liquid sulfur can be completely collected without remaining in the collection area. Discharge chamber 13 is located at the top of collection chamber 12. Purified process gas rises under pressure and enters discharge chamber 13, then is discharged through outlet 15. This vertically connected design eliminates eddies and stagnation zones that may occur during lateral flow, ensuring smooth fluid flow.

[0037] In a specific embodiment, in the practical application of the sulfur recovery unit, the process gas typically has a certain pressure and temperature. The vertically arranged tank 1 structure allows the gas pressure to gradually decrease during its ascent, which is beneficial for further condensation of liquid sulfur. Simultaneously, the bottom-positioned collection chamber 11 ensures that even with minor vibrations during equipment operation, liquid sulfur can stably collect in the collection chamber 11 under gravity, preventing backflow or stagnation. The top-positioned discharge chamber 13 ensures that the gas outlet is at the highest point of the system, avoiding the risk of accidental liquid sulfur entering the gas outlet pipeline.

[0038] In this embodiment of the invention, the vertically arranged tank 1, combined with the design of a bottom collection chamber 11 and a top discharge chamber 13, achieves natural stratification and orderly flow of the fluid. Liquid sulfur automatically collects in the bottom collection chamber 11 under gravity, requiring no additional propulsion; the treated process gas rises to the top discharge chamber 13 under pressure, minimizing flow resistance. This design not only reduces system pressure loss and improves separation efficiency but also simplifies system control requirements and reduces energy consumption. Compared to horizontally or inclined tanks 1, the vertical arrangement requires less floor space and is more convenient to install and maintain for the same processing capacity.

[0039] In some embodiments, the partition assembly 2 includes a vertical plate 21 that divides the collection chamber 12 into two separate chambers. The tops of the two separate chambers are connected to the discharge chamber 13, and the bottoms of the two separate chambers are connected to the collection chamber 11.

[0040] In this invention, the baffle assembly 2, including the vertical plate 21, divides the collection chamber 12 into two separate chambers. The tops of both chambers are connected to the discharge chamber 13, and the bottoms are connected to the collection chamber 11. This achieves a standard dual-zone alternating operation mode, ensuring the stability of process gas flow in each chamber and the ease of operation and control. The physical separation creates two independent and symmetrical operating areas, avoiding airflow interference and control complexity issues that may occur with multi-zone operation.

[0041] Specifically, the vertical plate 21, as the main structure of the baffle assembly 2, is arranged radially along the tank body 1, precisely dividing the originally uniform collection chamber 12 into two equal-sized sub-chambers. This equal division design ensures that the two sub-chambers have the same processing capacity and similar flow characteristics. The tops of both sub-chambers are connected to the discharge chamber 13, ensuring that the processed process gas can be discharged smoothly without the operating state of one sub-chamber affecting the gas discharge of the other. The bottoms of both sub-chambers are connected to the collection chamber 11, ensuring that the liquid sulfur collected in both areas can be collected in a unified collection chamber 11 for subsequent unified processing and discharge.

[0042] In one specific embodiment, during the continuous operation of the sulfur recovery unit, the two chambers can achieve perfect alternation: when the left chamber is undergoing condensation, all process gas is supplied to that chamber, while the right chamber stops supplying gas for melting; when the left chamber needs melting due to excessive sulfur condensation, the process gas is immediately switched to the right chamber for condensation, and the left chamber begins melting. This standard binary alternation mode simplifies operation control, requiring only the operator to monitor the status of both chambers, avoiding problems such as uneven flow distribution, mutual airflow interference, and unstable collection efficiency caused by simultaneous gas supply from multiple chambers.

[0043] In this embodiment of the invention, the design of dividing the collection chamber 12 into two sub-chambers by the vertical plate 21 achieves an optimal balanced configuration. The two-chamber design ensures the feasibility of alternating operation while avoiding the control complexity associated with multiple chambers. The equal division ensures that both chambers have identical processing capabilities; when the process gas is switched from one chamber to the other, the processing effect remains consistent, preventing sudden changes in processing capacity. Furthermore, the design that both chambers are connected to the discharge chamber 13 and the collection chamber 11 ensures system symmetry and smooth flow, maximizing the operational stability and processing efficiency of the equipment.

[0044] In some embodiments, the partition assembly 2 further includes a horizontal plate 22, which is connected to the bottom of the vertical plate 21 and is disposed between one of the sub-chambers and the collection chamber 11 to isolate the sub-chambers and the collection chamber 11; the liquid sulfur trap further includes a guide pipe 4, which passes through the horizontal plate 22 to connect the sub-chambers and the collection chamber 11.

[0045] In this invention, the partition assembly 2 also includes a horizontal plate 22, which is connected to the bottom of the vertical plate 21 and positioned between one of the sub-chambers and the collection chamber 11. A guide pipe 4, passing through the horizontal plate 22, connects the sub-chamber and the collection chamber 11, thus optimizing the liquid sulfur collection path in the left sub-chamber. This ensures that all captured liquid sulfur is completely collected in the collection chamber 11, preventing the accumulation and retention of liquid sulfur within the sub-chamber. Through the isolation function of the horizontal plate 22 and the guiding function of the guide pipe 4, a dedicated collection channel is provided for liquid sulfur.

[0046] Specifically, the horizontal plate 22, as an important component of the partition assembly 2, connects to the bottom of the vertical plate 21 to form an L-shaped structure and is positioned between the left sub-chamber and the collection chamber 11. The horizontal plate 22 physically isolates the bottom of the left sub-chamber from the collection chamber 11, preventing the process gas from flowing between the two chambers during alternating operation, thus ensuring the stability of the process gas. The guide pipe 4 passes through the horizontal plate 22, with one end located in the left sub-chamber and the other end directly connected to the collection chamber 11, providing a dedicated collection channel for the liquid sulfur captured in the left sub-chamber. When the sulfur condensed on the surface of the heat transfer component 3 in the left sub-chamber melts, the liquid sulfur flows down the inner wall of the guide pipe 4 under gravity and directly enters the collection chamber 11. The liquid sulfur captured in the right sub-chamber drips directly into the collection chamber 11 for collection.

[0047] In some embodiments, the heat transfer component 3 includes a plurality of spaced heat transfer plates 33, with a medium channel 32 inside the heat transfer plate 33, and a gas channel 31 formed between two adjacent heat transfer plates 33.

[0048] In this invention, the heat transfer component 3 includes multiple spaced heat transfer plates 33, with media channels 32 inside each heat transfer plate 33 and gas channels 31 formed between adjacent heat transfer plates 33. This achieves a highly efficient indirect heat transfer method, significantly improving heat transfer efficiency and liquid sulfur capture capacity. The combined use of multiple heat transfer plates 33 greatly increases the heat transfer area, while the spaced gas channels 31 ensure smooth flow and sufficient contact of the process gas.

[0049] Specifically, the heat transfer component 3 adopts a multi-plate structure, with each heat transfer plate 33 being an independent heat transfer unit, containing a medium channel 32 for the flow of the heat exchange medium. Multiple heat transfer plates 33 are arranged in parallel at a certain interval, forming a group of heat transfer plates 33. The space between two adjacent heat transfer plates 33 forms a gas channel 31, through which the process gas flows and transfers heat to the outer surface of the heat transfer plate 33. The medium channel 32 inside the heat transfer plate 33 is connected to the external heat exchange medium circulation system. By controlling the temperature and flow rate of the heat exchange medium, the surface temperature of the heat transfer plate 33 can be precisely adjusted. When condensation is required, the low-temperature heat exchange medium flows through the medium channel 32, causing the surface temperature of the heat transfer plate 33 to be below the melting point of sulfur, and the liquid sulfur in the process gas condenses on the surface of the heat transfer plate 33. When melting is required, the high-temperature heat exchange medium flows through the medium channel 32, causing the surface temperature of the heat transfer plate 33 to be above the melting point of sulfur, and the condensed sulfur remelts.

[0050] In some embodiments, the heat transfer assembly 3 further includes: an inlet pipe assembly 34, which penetrates the side wall of the tank 1 and is connected to the input end of a plurality of medium channels 32; and an outlet pipe assembly 35, which penetrates the side wall of the tank 1 and is connected to the output end of a plurality of medium channels 32.

[0051] In this invention, the heat transfer assembly 3 also includes an inlet pipe assembly 34 and an outlet pipe assembly 35. The inlet pipe assembly 34 penetrates the side wall of the tank 1 and connects to the input ends of multiple medium channels 32. The outlet pipe assembly 35 penetrates the side wall of the tank 1 and connects to the output ends of multiple medium channels 32, thus realizing an independent circulation system for the heat exchange medium and ensuring the accuracy and response speed of the temperature control of the heat transfer assembly 3. By establishing a dedicated heat exchange medium supply and recovery system for each heat transfer assembly 3, a closed-loop circulation of the heat exchange medium is achieved.

[0052] Specifically, the inlet pipe assembly 34 serves as the heat exchange medium supply system. It originates from a heat exchange medium source outside the tank 1, penetrates the side wall of the tank 1, enters the interior, and is then distributed to the inlet ends of the medium channels 32 of multiple heat transfer plates 33 within the heat transfer assembly 3. The inlet pipe assembly 34 typically employs a distributor design to ensure that each heat transfer plate 33's medium channel 32 receives a sufficient and uniform supply of heat exchange medium. The outlet pipe assembly 35 serves as the heat exchange medium recovery system, collecting the heat exchange medium from the outlet ends of the multiple medium channels 32, summarizing it, and returning it through the side wall of the tank 1 to the external heat exchange medium processing system. The design of the inlet pipe assembly 34 and the outlet pipe assembly 35 allows the heat exchange medium to form a complete circulation loop within the heat transfer assembly 3, avoiding direct contact with the process gas and achieving indirect heat transfer.

[0053] In some embodiments, an air distribution pipe 5 is also included. The air distribution pipe 5 is disposed in the chamber and communicates with the air inlet 14 for uniformly distributing air to the heat transfer component 3.

[0054] In this invention, the liquid sulfur trap also includes a gas distribution pipe 5, which is located in the chamber and connected to the inlet 14. The gas distribution pipe 5 is used to evenly distribute gas to the heat transfer assembly 3, achieving uniform distribution of process gas within the heat transfer assembly 3. This avoids airflow short-circuiting and flow deviation, ensuring that each part of the heat transfer assembly 3 can effectively perform its liquid sulfur trapping function. Through a dedicated gas distribution device, the process gas entering from the inlet 14 is evenly distributed to various areas of the heat transfer assembly 3.

[0055] Specifically, the gas distribution pipe 5, as a gas distribution device, typically adopts a porous pipe or half-pipe structure and is located at the bottom or inlet area of ​​the distribution chamber. One end of the gas distribution pipe 5 is connected to the inlet 14 to receive process gas from the outside; the porous pipe or half-pipe structure at the other end is evenly distributed below or around the heat transfer assembly 3. When the process gas enters the distribution chamber through the inlet 14, it first enters the gas distribution pipe 5, and then is evenly distributed to each gas channel 31 of the heat transfer assembly 3 through multiple openings or half-pipe structures on the gas distribution pipe 5. The size, spacing, and distribution of the openings on the gas distribution pipe 5, as well as the half-pipe structure, can be optimized according to the structure of the heat transfer assembly 3 and the flow rate of the process gas to ensure that each gas channel 31 receives an appropriate gas flow rate.

[0056] In some embodiments, the tank body 1 is further provided with a demister 17, which is located between the collection chamber 12 and the discharge chamber 13; the liquid sulfur collector also includes a demister 6, which is disposed in the demister 17.

[0057] In this invention, a demister 17 is also provided inside the tank 1. The demister 17 is located between the collection chamber 12 and the discharge chamber 13, and a demister 6 is installed in the demister 17, forming a two-stage liquid sulfur collection system. This system performs final liquid sulfur separation on the process gas after it has been processed by the heat transfer component 3, ensuring that the liquid sulfur content in the outlet gas is reduced to the lowest possible level. Through the series configuration of the two-stage separation, multiple safeguards for liquid sulfur collection are achieved.

[0058] Specifically, the demister 17, as an independent processing space, is located between the collection chamber 12 and the discharge chamber 13, forming the second stage of process gas treatment. After the process gas completes the main liquid sulfur separation in the heat transfer components 3 of the collection chamber 12, it carries a small amount of residual liquid sulfur into the demister 17. The demister 6 is located inside the demister 17 and typically employs efficient droplet separation technology, such as wire mesh demister, corrugated plate demister, or cyclone demister. The function of the demister 6 is to capture the tiny droplets entrained in the process gas. These droplets may be liquid sulfur that was not completely separated in the heat transfer components 3, or fine mist droplets that reform during gas flow. Through the treatment of the demister 6, these residual liquid sulfur are captured and condensed into larger droplets, which then drip and are recovered under gravity.

[0059] In some embodiments, the outer surface of the tank 1 is provided with a first heat tracing element 7; and / or, the demister 6 is provided with a second heat tracing element 8; and / or, the outer surface of the liquid sulfur outlet 16 is provided with a third heat tracing element 9.

[0060] In this invention, a comprehensive temperature control system is established by installing a first heat tracing element 7 on the outer surface of the tank 1, and / or a second heat tracing element 8 on the demister 6, and / or a third heat tracing element 9 on the outer surface of the liquid sulfur outlet 16. This ensures temperature stability in all key parts of the liquid sulfur trap, completely eliminates the risk of sulfur condensation and blockage, and guarantees long-term stable operation of the equipment. Through the synergistic effect of multiple heat tracing elements, targeted temperature protection is provided for different parts.

[0061] Specifically, the first heat tracing element 7 is installed on the outer surface of the tank 1, typically in the form of a steam heating coil or electric heating tape. Its main function is to maintain the temperature stability of the tank 1 shell and prevent the liquid sulfur inside the tank 1 from solidifying due to excessively low temperatures. The first heat tracing element 7 transfers heat to the inside of the tank 1 through heat conduction with the outer wall of the tank 1, ensuring a suitable temperature environment for the entire container. The second heat tracing element 8 is installed at the bottom of the demister 6, providing dedicated temperature control for this critical component to prevent the demister 6 from being blocked by sulfur due to excessively low temperatures, ensuring that the demister 6 can continuously and effectively perform its droplet separation function. The third heat tracing element 9 is installed on the outer surface of the liquid sulfur outlet 16, specifically for heating the liquid sulfur discharge channel, ensuring that the liquid sulfur remains in a flowing state during discharge and preventing condensation and blockage in the outlet pipe.

[0062] In some embodiments, a pressure detection component 10 is also included. The pressure detection component 10 is disposed on the tank 1 and can detect the pressure difference between the input end and the output end of the heat transfer component 3, which serves as a criterion for judging the condensation and melting of liquid sulfur entrained in the process gas.

[0063] In this invention, the liquid sulfur trap also includes a pressure detection component 10, which is mounted on the tank 1. This component detects the pressure difference between the input and output ends of the heat transfer component 3, serving as a criterion for judging the condensation and melting of liquid sulfur entrained in the process gas. This achieves intelligent monitoring and automated control of the operating status of the heat transfer component 3, ensuring the timeliness and accuracy of the condensation-melting cycle operation. The key to this technical solution lies in reflecting the degree of blockage in the heat transfer component 3 through pressure difference changes, providing a reliable basis for switching operating modes.

[0064] Specifically, the gas pressure detection component 10 typically includes a differential pressure sensor, pressure taps, and a data transmission system. The pressure taps are located at the input and output ends of the heat transfer component 3, respectively, to collect gas pressure signals before and after the heat transfer component 3. The differential pressure sensor connects to the two pressure taps to measure the pressure difference before and after the heat transfer component 3 in real time. When the heat transfer component 3 is in normal condensation operation, the gas channel 31 is relatively unobstructed, and the pressure difference remains at a low level. As the condensation operation proceeds, liquid sulfur in the process gas gradually condenses and accumulates on the surface of the heat transfer plate 33, the gas channel 31 gradually narrows, and the gas flow resistance increases, causing the pressure difference before and after the heat transfer component 3 to gradually increase. When the pressure difference reaches a preset critical value, it indicates that the condensation degree of the heat transfer component 3 has reached a level requiring cleaning, and the system automatically switches to melting operation.

[0065] In a specific embodiment, during the actual operation of the sulfur recovery unit, the degree of condensation of the heat transfer component 3 is difficult to judge through visual observation. Traditional methods often rely on experience or timed switching, lacking scientific judgment criteria. Through real-time monitoring by the pressure detection component 10, operators can accurately grasp the working status of the heat transfer component 3. For example, when the pressure difference gradually increases from the normal 0.5 kPa to the set value of 2.0 kPa, the system automatically starts the melting program, switches to the high-temperature heat exchange medium, and simultaneously stops the process gas supply to that chamber, switching the process gas to another chamber. After melting is complete, the pressure difference returns to the normal level, and the system can switch back to condensation operation. This automatic control based on pressure difference monitoring greatly improves the scientific nature, timeliness, and accuracy of the operation.

[0066] In this embodiment of the invention, the gas pressure detection component 10 enables the objectivity and automation of the status monitoring of the heat transfer component 3. Changes in pressure difference directly reflect the degree of blockage in the gas passage 31 inside the heat transfer component 3, providing an accurate and reliable criterion for switching operating modes. This automatic control based on real-time monitoring data not only improves operational accuracy but also reduces the impact of human factors and lowers operational risks. The gas pressure detection component 10 can also be integrated with an automatic control system to achieve fully automatic operation of the condensation-melting cycle, greatly improving the intelligence level of equipment operation. Compared to traditional methods relying on experience-based judgment, the control method based on pressure difference monitoring is more scientific and reliable, providing important technical support for the efficient and stable operation of the liquid sulfur trap.

[0067] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A liquid sulfur trap having a partition structure, characterized by, include: The tank (1) has a collection chamber (11), a capture chamber (12) and a discharge chamber (13) connected in sequence inside the tank (1). The tank (1) is provided with an air inlet (14), an air outlet (15) and a liquid sulfur outlet (16). The air inlet (14) is connected to the capture chamber (12), the air outlet (15) is connected to the discharge chamber (13), and the liquid sulfur outlet (16) is connected to the collection chamber (11). A partition assembly (2) is disposed within the collection chamber (12) and divides the collection chamber (12) into at least two sub-chambers; At least two heat transfer components (3) are respectively disposed in at least two of the compartments. The heat transfer components (3) include a gas channel (31) and a medium channel (32) that can transfer heat to each other. The medium channel (32) is connected to an external heat exchange medium. The air inlet (14) is provided in at least two places, which are used to introduce sulfur-containing process gas into at least two of the sub-chambers respectively; the temperature of the heat exchange medium is adjustable, and by controlling the temperature of the heat exchange medium, the liquid sulfur entrained in the process gas is circulated and condensed-melted on the surface of the heat transfer component (3).

2. The liquid sulfur trap with a partition structure according to claim 1, characterized in that, The tank (1) is vertically arranged, and the top and bottom of the collection chamber (12) are respectively connected to the collection chamber (11) and the discharge chamber (13).

3. The liquid sulfur trap with a partition structure according to claim 2, characterized in that, The partition assembly (2) includes a vertical plate (21) that divides the collection chamber (12) into two separate chambers. The tops of the two separate chambers are connected to the discharge chamber (13), and the bottoms of the two separate chambers are connected to the collection chamber (11).

4. The liquid sulfur trap with a partition structure according to claim 3, characterized in that, The partition assembly (2) also includes a horizontal plate (22), which is connected to the bottom of the vertical plate (21) and is disposed between one of the sub-chambers and the collection chamber (11) to isolate the sub-chamber and the collection chamber (11). The liquid sulfur trap with a partition structure also includes a guide pipe (4) that passes through the cross plate (22) and is used to connect the partition chamber and the collection chamber (11).

5. The liquid sulfur trap with a partition structure according to claim 1, characterized in that, The heat transfer component (3) includes a plurality of heat transfer plates (33) spaced apart. The heat transfer plate (33) has a medium channel (32) inside it, and a gas channel (31) is formed between two adjacent heat transfer plates (33).

6. The liquid sulfur trap with a partition structure according to claim 5, characterized in that, The heat transfer component (3) further includes: The liquid inlet pipe assembly (34) penetrates the side wall of the tank (1) and is connected to the input end of the plurality of media channels (32); The liquid outlet pipe assembly (35) penetrates the side wall of the tank (1) and is connected to the output end of the plurality of medium channels (32).

7. The liquid sulfur trap with a partition structure according to claim 1, characterized in that, It also includes an air distribution pipe (5), which is disposed in the chamber and connected to the air inlet (14) for uniformly distributing air to the heat transfer component (3).

8. The liquid sulfur trap with a partition structure according to claim 2, characterized by, The tank (1) is also provided with a defoaming chamber (17) inside, which is located between the collection chamber (12) and the discharge chamber (13); the liquid sulfur collector with a partition structure also includes a demister (6) which is provided in the defoaming chamber (17).

9. The liquid sulfur trap with a partition structure according to claim 8, characterized in that, The outer surface of the tank (1) is provided with a first heat tracing element (7); And / or, the demister (6) is provided with a second heat tracing element (8); And / or, the outer surface of the liquid sulfur outlet (16) is provided with a third heat tracing element (9).

10. The liquid sulfur trap with a partition structure according to any one of claims 1 to 9, characterized in that, It also includes a pressure detection component (10), which is installed on the tank (1) and can detect the pressure difference between the input and output ends of the heat transfer component (3) as a criterion for judging the condensation and melting of liquid sulfur entrained in the process gas.

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