A liquefied gas desulfurization device with detachable caustic washing plate

Abstract

The utility model relates to desulfurization device technical field discloses a detachable caustic soda washing dish's liquefied gas desulfurization device, including the casing, the bottom fixed mounting of casing inner wall is annular seat, the inside mounting of annular seat has the filter screen, the surface mounting of filter screen has dredging subassembly, the middle part of casing inner wall sets up a plurality of caustic soda washing dishes from top to bottom in proper order, both sides of caustic soda washing dish top all are fixedly connected with the insertion strip, both sides of caustic soda washing dish bottom all are seted up with the insertion slot, the inner wall of insertion slot sets up the mounting groove, the inside mounting of mounting groove has the clamping assembly, the top of casing is fixedly installed with the top cover through the bolt. In the utility model, the multilayer caustic soda washing dish in desulfurization device splits quickly, is favorable to the cleaning and maintenance to each caustic soda washing dish, and the filter screen and dredging subassembly set up can continuously filter the particulate impurity in liquefied gas, avoid causing subsequent passage blockage and influence desulfurization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization equipment technology, and in particular to a liquefied gas desulfurization device with a detachable alkaline washing plate. Background Technology

[0002] Liquefied petroleum gas (LPG) is a colorless, volatile liquid produced by pressurizing and cooling refinery gas or natural gas. By utilizing an alkaline solution to neutralize or chemically react with sulfides such as hydrogen sulfide and mercaptans in LPG, the sulfides are converted into water-soluble salts, effectively removing sulfides and achieving the goals of purifying LPG, reducing equipment corrosion, and minimizing environmental pollution.

[0003] Alkali washing discs provide an efficient contact reaction site between alkali solution and sulfides in liquefied petroleum gas (LPG) within the desulfurization unit. They typically consist of a multi-layered structure, but existing LPG desulfurization units have shortcomings. First, the alkali washing discs in existing LPG desulfurization units are mostly connected by flange bolts, making disassembly cumbersome and hindering cleaning and maintenance of each disc. Second, existing desulfurization units lack a pre-filtration structure for particulate impurities in the LPG, easily causing localized blockages in the channels and reducing desulfurization efficiency. Therefore, this paper proposes an LPG desulfurization unit with detachable alkali washing discs to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a liquefied gas desulfurization device with a detachable alkaline washing disc. It aims to improve the existing liquefied gas desulfurization devices, where the alkaline washing discs are mostly connected by flange bolts, making disassembly cumbersome and hindering the cleaning and maintenance of each alkaline washing disc. In addition, the existing desulfurization devices lack a pre-filtration structure for particulate impurities in liquefied gas, which can easily cause local blockage of the channels and reduce desulfurization efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a liquefied gas desulfurization device with detachable alkaline washing discs, comprising a housing, an annular seat fixedly installed at the bottom of the inner wall of the housing, a filter screen installed inside the annular seat, a dredging component installed on the surface of the filter screen, a plurality of alkaline washing discs arranged sequentially from top to bottom in the middle of the inner wall of the housing, inserts fixedly connected to both sides of the top of the alkaline washing discs, slots opened on both sides of the bottom of the alkaline washing discs, an installation groove opened on the inner wall of the slots, a snap-fit ​​component installed inside the installation grooves, a top cover fixedly installed at the top of the housing by bolts, and a spray component installed at the bottom of the top cover; The mounting assembly includes a reset spring, a locking block, a displacement port, and a pull handle. The reset spring is fixedly connected to one side of the inner wall of the mounting groove. One end of the reset spring is fixedly connected to the locking block. The top of the mounting groove has a displacement port, and the top of the locking block is fixedly connected to the pull handle.

[0006] As a further description of the above technical solution: The unblocking assembly includes two vibrating motors, a slip ring, and several support springs. The two vibrating motors are respectively fixedly installed on both sides of the top of the filter screen. The slip ring is fixedly connected to the side wall of the filter screen and slidably connected to the inner wall of the annular seat. Several support springs are fixedly connected to the upper and lower ends of the slip ring, and one end of each of the support springs is fixedly connected to the upper and lower ends of the inner wall of the annular seat.

[0007] As a further description of the above technical solution: The spray assembly includes an annular tube and several atomizing nozzles. The annular tube is fixedly connected to the bottom end of the top cover, and several atomizing nozzles are uniformly fixedly connected to the bottom of the annular tube.

[0008] As a further description of the above technical solution: The top of the insert is inserted into the inner wall of the slot, and a latch is provided on the top of the insert, with one end of the latch engaging with the inner wall of the latch.

[0009] As a further description of the above technical solution: An air inlet pipe is fixedly connected to the bottom of one side of the housing, an air outlet pipe is fixedly connected to the top of the other side of the housing, and a drain pipe is fixedly connected to the bottom of the front of the housing.

[0010] As a further description of the above technical solution: A support ring is fixedly connected to the middle of the inner wall of the housing, and the alkaline washing plate located at the bottom is placed on the top of the support ring.

[0011] As a further description of the above technical solution: A liquid supply connector is fixedly connected to one side of the top cover surface, and the bottom end of the liquid supply connector is fixedly connected to the annular tube.

[0012] As a further description of the above technical solution: The bottom of the pull handle is slidably connected to the inner wall of the displacement port.

[0013] This utility model has the following beneficial effects: In this invention, two inserts at the top of the alkaline washing tray are inserted into two slots at the bottom of the upper alkaline washing tray. Under the action of the return spring, the locking block will engage with the slots of the inserts to lock them in place. By simultaneously pulling the two pull handles at the top of the alkaline washing tray, the locking block below is moved and its end is disengaged from the slot, thus unlocking the tray. This allows for quick separation of the two alkaline washing trays, facilitating cleaning and maintenance of each tray. In this invention, by installing a filter screen inside the desulfurization equipment, particulate impurities in the liquefied gas can be filtered in advance to avoid blockage of subsequent channels and affect desulfurization efficiency. The vibration motor on the surface of the filter screen can be periodically started, and with the cooperation of slip rings and support springs, the up-and-down vibration amplitude of the filter screen can be increased to shake off particulate impurities attached to the bottom surface, thereby playing a role in unblocking and ensuring continuous impurity filtration effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a liquefied gas desulfurization device with a detachable alkaline washing plate proposed in this utility model. Figure 2 This is a cross-sectional schematic diagram of a liquefied gas desulfurization device with a detachable alkaline washing pan proposed in this utility model. Figure 3 This is a bottom view of the top cover of a liquefied gas desulfurization device with a detachable alkaline washing pan, as proposed in this utility model. Figure 4 This is a cross-sectional schematic diagram of the annular seat of a liquefied gas desulfurization device with a detachable alkaline washing pan proposed in this utility model. Figure 5 This is a schematic diagram of the structure of the alkaline washing plate of a liquefied gas desulfurization device with a detachable alkaline washing plate according to the present invention. Figure 6 This is a cross-sectional schematic diagram of the alkaline washing plate of a liquefied gas desulfurization device with a detachable alkaline washing plate, as proposed in this utility model.

[0015] Legend: 1. Housing; 2. Top cover; 3. Air inlet pipe; 4. Air outlet pipe; 5. Annular seat; 6. Slip ring; 7. Support spring; 8. Filter screen; 9. Vibration motor; 10. Support ring; 11. Alkali washing tray; 12. Insert; 13. Bayonet; 14. Slot; 15. Mounting slot; 16. Return spring; 17. Locking block; 18. Pull handle; 19. Displacement port; 20. Annular tube; 21. Atomizing nozzle; 22. Drain pipe; 23. Liquid supply connector. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1-6This utility model provides an embodiment of a liquefied petroleum gas (LPG) desulfurization device with detachable alkaline washing discs. The device includes a housing 1, providing a site for LPG desulfurization. An annular seat 5 is fixedly installed at the bottom of the inner wall of the housing 1. A filter screen 8 is installed inside the annular seat 5 to filter particulate impurities in the LPG entering the housing 1, preventing impurities from clogging subsequent channels and affecting desulfurization efficiency. A dredging component is installed on the surface of the filter screen 8 to remove impurities adhering to its surface, ensuring continuous filtration. Several alkaline washing discs 11 are arranged sequentially from top to bottom in the middle of the inner wall of the housing 1, serving as the main site for the desulfurization reaction between LPG and alkaline solution. Therefore, efficient gas-liquid contact is achieved through its holes. Inserts 12 are fixedly connected to both sides of the top of the alkaline washing plate 11, and slots 14 are opened on both sides of the bottom of the alkaline washing plate 11. Inserts 12 are used to insert into the slots 14 of the upper alkaline washing plate 11 to achieve preliminary positioning and connection of adjacent alkaline washing plates 11. The inner wall of the slot 14 is provided with an installation groove 15. The installation groove 15 is equipped with a locking component to lock adjacent alkaline washing plates 11. The top of the housing 1 is fixedly installed with a top cover 2 by bolts to close the top of the housing 1. The bottom of the top cover 2 is equipped with a spray component to atomize and spray out the alkaline liquid to fully contact and react with the liquefied gas. Reference Figure 6 The mounting assembly includes a reset spring 16, a locking block 17, a displacement port 19, and a pull handle 18. The reset spring 16 is fixedly connected to one side of the inner wall of the mounting groove 15. One end of the reset spring 16 is fixedly connected to the locking block 17. Under the action of elastic force, the reset spring 16 can push against the locking block 17 to move, providing the reset effect of the locking block 17. The top of the mounting groove 15 has a displacement port 19. The top of the locking block 17 is fixedly connected to the pull handle 18, which is convenient for the operator to pull manually, which can drive the locking block 17 to move and achieve the unlocking effect, realizing the separation between the alkaline washing pans 11.

[0018] Reference Figure 4 The unblocking component includes two vibrating motors 9, a slip ring 6, and several support springs 7. The two vibrating motors 9 are fixedly installed on both sides of the top of the filter screen 8. After starting, they can generate vibration, causing the filter screen 8 to vibrate and shake off the impurities attached to the surface. The slip ring 6 is fixedly connected to the side wall of the filter screen 8, and the slip ring 6 is slidably connected to the inner wall of the annular seat 5. It is used to guide the filter screen 8 to move up and down and ensure that its vibration direction is stable. Several support springs 7 are fixedly connected to the upper and lower ends of the slip ring 6. One end of the support springs 7 is fixedly connected to the upper and lower ends of the inner wall of the annular seat 5, which supports the slip ring 6, increases the vibration amplitude of the filter screen 8, and improves the impurity shaking effect.

[0019] Reference Figure 3The spray assembly includes an annular pipe 20 and several atomizing nozzles 21. The annular pipe 20 is fixedly connected to the bottom end of the top cover 2. Several atomizing nozzles 21 are uniformly fixedly connected to the bottom of the annular pipe 20. The annular pipe 20 is used to transport alkali solution to each atomizing nozzle 21 and atomize the alkali solution to spray it out, so that the alkali solution and liquefied gas can be fully contacted to improve the desulfurization reaction efficiency.

[0020] Reference Figure 5 and Figure 6 The top of the insert 12 is inserted into the inner wall of the slot 14 for insertion and positioning between adjacent alkaline washing trays 11. The top of the insert 12 has a slot 13, and one end of the locking block 17 engages with the inner wall of the slot 13, which can restrict the movement of the insert 12 and realize the combination locking between the alkaline washing trays 11.

[0021] Reference Figure 2 An air inlet pipe 3 is fixedly connected to the bottom of one side of the shell 1 for inputting liquefied gas for desulfurization treatment. An air outlet pipe 4 is fixedly connected to the top of the other side of the shell 1 for outputting desulfurized liquefied gas. A drain pipe 22 is fixedly connected to the bottom of the front of the shell 1 for discharging waste liquid generated during the desulfurization process.

[0022] Reference Figure 1 A support ring 10 is fixedly connected to the middle of the inner wall of the housing 1, and the bottom alkaline washing plate 11 is placed on the top of the support ring 10 to support the bottom alkaline washing plate 11 and ensure the stable installation of the multi-layer alkaline washing plate 11.

[0023] Reference Figure 1 and Figure 3 A liquid supply connector 23 is fixedly connected to one side of the surface of the top cover 2, and the bottom end of the liquid supply connector 23 is fixedly connected to the annular pipe 20 for connecting the alkali solution conveying pipeline and introducing the alkali solution into the annular pipe 20.

[0024] Reference Figure 6 The bottom of the pull handle 18 is slidably connected to the inner wall of the displacement port 19. The displacement port 19 provides space for the movement of the pull handle 18 and serves as a guide.

[0025] Working principle: An external air pump is used to transport liquefied petroleum gas (LPG), which enters the desulfurization housing 1 through the inlet pipe 3. A filter screen 8 is installed inside the desulfurization equipment to pre-filter particulate impurities in the LPG, preventing blockage of subsequent channels and ensuring desulfurization efficiency. A vibration motor 9 on the surface of the filter screen 8 can be periodically activated. With the cooperation of the slip ring 6 and the support spring 7, the vertical vibration amplitude of the filter screen 8 is increased to shake off particulate impurities attached to the bottom surface, thus ensuring continuous impurity filtration. While the LPG flows within the housing 1, the liquid supply connector 23 connects to the alkali solution delivery pipeline to deliver the alkali solution to several atomizing nozzles 21 below the annular pipe 20, where it is sprayed through the holes of the multi-layer alkali washing disc 11. The gas reacts efficiently with liquefied gas in the cavity to convert sulfides into water-soluble salts, thus achieving a purification effect. The purified gas is discharged from the outlet pipe 4. After removing the top cover 2, the alkaline washing plate 11 inside the shell 1 can be manually removed. The two inserts 12 at the top of the alkaline washing plate 11 are inserted into the two slots 14 at the bottom of the upper alkaline washing plate 11. Under the action of the return spring 16, the locking block 17 will be locked into the slot 13 of the insert 12. By simultaneously pulling the two pull handles 18 at the top of the alkaline washing plate 11, the locking block 17 below is moved and its end is disengaged from the slot 13, which can unlock the plate and quickly separate the two alkaline washing plates 11. The quick disassembly facilitates the cleaning and maintenance of each alkaline washing plate 11.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A liquefied petroleum gas desulfurization device with a detachable alkaline washing pan, comprising a housing (1), characterized in that: An annular seat (5) is fixedly installed at the bottom of the inner wall of the housing (1). A filter screen (8) is installed inside the annular seat (5). A dredging component is installed on the surface of the filter screen (8). Several alkaline washing discs (11) are arranged sequentially from top to bottom in the middle of the inner wall of the housing (1). Inserts (12) are fixedly connected to both sides of the top of the alkaline washing discs (11). Slots (14) are opened on both sides of the bottom of the alkaline washing discs (11). An installation groove (15) is opened on the inner wall of the slot (14). A snap-fit ​​component is installed inside the installation groove (15). A top cover (2) is fixedly installed on the top of the housing (1) by bolts. A spray component is installed at the bottom of the top cover (2). The mounting assembly includes a reset spring (16), a locking block (17), a displacement port (19), and a pull handle (18). The reset spring (16) is fixedly connected to one side of the inner wall of the mounting groove (15). One end of the reset spring (16) is fixedly connected to the locking block (17). The top of the mounting groove (15) has a displacement port (19). The top of the locking block (17) is fixedly connected to the pull handle (18).

2. The liquefied petroleum gas desulfurization device with a detachable alkaline washing pan according to claim 1, characterized in that: The unblocking assembly includes two vibrating motors (9), a slip ring (6), and several support springs (7). The two vibrating motors (9) are fixedly installed on both sides of the top of the filter screen (8). The slip ring (6) is fixedly connected to the side wall of the filter screen (8) and is slidably connected to the inner wall of the annular seat (5). Several support springs (7) are fixedly connected to the upper and lower ends of the slip ring (6). One end of each of the support springs (7) is fixedly connected to the upper and lower ends of the inner wall of the annular seat (5).

3. The liquefied petroleum gas desulfurization device with a detachable alkaline washing pan according to claim 1, characterized in that: The spray assembly includes an annular tube (20) and several atomizing nozzles (21). The annular tube (20) is fixedly connected to the bottom end of the top cover (2), and several atomizing nozzles (21) are uniformly fixedly connected to the bottom of the annular tube (20).

4. The liquefied petroleum gas desulfurization device with a detachable alkaline washing pan according to claim 1, characterized in that: The top of the insert (12) is inserted into the inner wall of the slot (14), and the top of the insert (12) is provided with a slot (13), and one end of the locking block (17) engages with the inner wall of the slot (13).

5. The liquefied petroleum gas desulfurization device with a detachable alkaline washing pan according to claim 1, characterized in that: An air inlet pipe (3) is fixedly connected to the bottom of one side of the housing (1), an air outlet pipe (4) is fixedly connected to the top of the other side of the housing (1), and a drain pipe (22) is fixedly connected to the bottom of the front of the housing (1).

6. The liquefied petroleum gas desulfurization device with a detachable alkaline washing pan according to claim 1, characterized in that: A support ring (10) is fixedly connected to the middle of the inner wall of the housing (1), and the alkaline washing plate (11) located at the bottom is placed at the top of the support ring (10).

7. The liquefied petroleum gas desulfurization device with a detachable alkaline washing pan according to claim 3, characterized in that: A liquid supply connector (23) is fixedly connected to one side of the surface of the top cover (2), and the bottom end of the liquid supply connector (23) is fixedly connected to the annular tube (20).

8. A liquefied petroleum gas desulfurization device with a detachable alkaline washing pan according to claim 1, characterized in that: The bottom of the pull handle (18) is slidably connected to the inner wall of the displacement port (19).

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