Liquefied gas desulfurization tower

Abstract

The utility model provides a liquefied gas desulfurization tower, including tower body and set up in the outside of tower body's air inlet pipe, the inside of tower body is provided with desulfurization subassembly, the top of tower body is provided with gas -liquid separation subassembly, the gas -liquid separation subassembly includes the connecting cylinder fixedly connected in the top of tower body, the inner wall of connecting cylinder is fixedly connected with dry cotton, the gas -liquid separation subassembly still includes the extrusion structure for extruding dry cotton and making alkaline solution separate from dry cotton in connecting cylinder inside setting, through the gas -liquid separation subassembly of setting, utilize dry cotton can absorb and dry the alkaline solution in the inclusion of liquefied gas, avoid alkaline solution with purified gas and export, further reduce the waste of alkaline reagent, extrude the dry cotton simultaneously with extrusion roller, can extrude the alkaline solution saturated adsorption in dry cotton inside, make dry cotton restore adsorption activity, can dry processing to the liquefied gas of continuously passing, and absorb residual alkaline solution droplet.

Description

Technical Field

[0001] This utility model relates to the field of petrochemical equipment technology, and in particular to a liquefied gas desulfurization tower. Background Technology

[0002] During the oil refining and natural gas processing processes, liquefied petroleum gas (LPG) typically contains a certain amount of sulfides such as hydrogen sulfide. These sulfides not only cause pollutants such as sulfur dioxide to be produced when LPG is burned, resulting in air pollution, but also corrode pipelines and equipment, shortening their service life and even causing safety accidents.

[0003] Application No. 202420539071.8 discloses a liquefied petroleum gas (LPG) desulfurization device, relating to the field of LPG treatment technology. The device includes a tower body, an input pipe, a distributor, a spiral baffle, a spiral tube, and a return pipe. The input pipe vertically penetrates the center of the top of the tower body. The distributor is rotatably mounted on the lower end of the input pipe via a sealed bearing, and its side is provided with several distribution pipes. Each of the distribution pipes has a row of atomizing nozzles on the same side. The spiral baffle is fixed to the inner wall of the tower body in the middle of the tower's internal cavity, forming a spiral channel with the inner wall. The spiral tube is fixedly fitted onto the outside of the tower body and corresponds to the spiral channel, with several atomizing nozzles penetrating the tower body on its inner side. The bottom of the tower's internal cavity is a storage tank. A circulation pump is installed outside the tower body on one side of the storage tank. The inlet of the circulation pump is connected to the storage tank, and its outlet is connected to the input pipe and the spiral tube via the return pipe. This device performs two-stage treatment of LPG through the spiral tube and the rotating distributor, thereby improving the treatment effect on sulfides in the LPG.

[0004] The above-mentioned solution has shortcomings in use. After spraying alkaline solution, it is impossible to further separate the gas and liquid. The mixed gas after the reaction still carries a large number of fine alkaline solution droplets. The unseparated alkaline solution is discharged with the purified gas, which will cause waste of alkaline agents. Therefore, we provide a liquefied gas desulfurization tower. Utility Model Content

[0005] This invention provides a liquefied gas desulfurization tower to solve the technical problems existing in the background art.

[0006] The purpose and effect of this utility model of a liquefied gas desulfurization tower are achieved by the following specific technical means: a liquefied gas desulfurization tower includes a tower body and an air inlet pipe disposed outside the tower body. A desulfurization component is disposed inside the tower body, and a gas-liquid separation component is disposed at the top of the tower body. The gas-liquid separation component includes a connecting cylinder fixedly connected to the top of the tower body, and a drying cotton is fixedly connected to the inner wall of the connecting cylinder.

[0007] The gas-liquid separation assembly also includes a compression structure disposed inside the connecting cylinder for squeezing the dry cotton to separate the alkaline solution from the dry cotton.

[0008] Preferably, the desulfurization assembly includes a diversion cylinder fixedly connected to the inner wall of the tower body, an infusion pipe is sleeved on the outside of the diversion cylinder, and the inlet end of the infusion pipe extends to the outside of the tower body. The infusion pipe is connected to annularly arranged atomizing nozzles, and the atomizing nozzles extend into the inside of the diversion cylinder.

[0009] Preferably, a flow rectifier plate is fixedly connected to the inner wall of the flow guide tube, and the upper surface of the flow rectifier plate is provided with annularly arranged dispersion holes.

[0010] Preferably, the extrusion structure of the gas-liquid separation component includes a motor embedded in the upper surface of the connecting cylinder, the output end of the motor is fixedly connected to a rotating rod, the bottom end of the rotating rod extends to the bottom of the drying cotton, and the outer surface of the rotating rod is rotatably connected to the drying cotton. A set of extrusion rollers is rotatably connected to the outer surface of the rotating rod, and the two extrusion rollers are respectively located above and below the drying cotton.

[0011] Preferably, a reinforcing plate is rotatably connected to the bottom end of the rotating rod, and the other end of the reinforcing plate is connected to the inner wall of the connecting cylinder.

[0012] Preferably, a protective shell is rotatably connected to the outer surface of the rotating rod, and the upper surface of the protective shell is connected to the inner top wall of the connecting cylinder.

[0013] Preferably, the upper surface of the connecting cylinder is connected to a discharge pipe, and the output end of the discharge pipe is connected to a connecting flange.

[0014] Preferably, a collection cover is fixedly connected to the inner wall of the tower body, and a connecting pipe is connected to the bottom surface of the collection cover, with the output end of the connecting pipe extending to the outside of the tower body.

[0015] Beneficial effects:

[0016] 1. Through the gas-liquid separation component, the drying cotton can absorb and dry the alkaline solution entrained in the liquefied gas, preventing the alkaline solution from being discharged with the purified gas and further reducing the waste of alkaline agents. At the same time, the extrusion roller can squeeze the drying cotton to squeeze out the alkaline solution saturated inside the drying cotton, so that the drying cotton can restore its adsorption activity, and can dry the continuously passing liquefied gas and absorb residual alkaline solution droplets.

[0017] 2. The rectifier plate can evenly disperse the liquefied gas into multiple fine airflows. These dispersed airflows pass through the inside of the diversion tube in an orderly manner, which greatly increases the contact area and contact time between the liquefied gas and the alkaline solution. This ensures that the alkaline solution can fully react with the sulfides in the liquefied gas, significantly improving the desulfurization efficiency. With the cooperation of the collection hood and the connecting pipe, the collection hood can collect the dripping alkaline solution and discharge it from the connecting pipe, making it convenient for staff to centrally process the alkaline solution. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the tower body of this utility model, which is a frontal cross-section.

[0020] Figure 3 This is a three-dimensional structural schematic diagram of the orthographic section of the drainage tube of this utility model.

[0021] Figure 4 This is a three-dimensional structural schematic diagram of the connecting cylinder of this utility model, shown in a front sectional view.

[0022] Figure 1-4 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Tower body; 2. Inlet pipe; 3. Desulfurization assembly; 301. Drainage cylinder; 302. Liquid delivery pipe; 303. Atomizing nozzle; 304. Rectifier plate; 4. Gas-liquid separation assembly; 401. Connecting cylinder; 402. Drying cotton; 403. Motor; 404. Rotating rod; 405. Extrusion roller; 406. Reinforcing plate; 407. Protective shell; 408. Discharge pipe; 409. Connecting flange; 5. Collection hood; 6. Connecting pipe. Detailed Implementation

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

[0025] As attached Figure 1 As shown: A liquefied gas desulfurization tower includes a tower body 1 and an air inlet pipe 2 disposed outside the tower body 1, through which liquefied gas can be injected into the interior of the tower body 1.

[0026] As attached Figure 2 With appendix Figure 3As shown: A desulfurization assembly 3 is installed inside the tower body 1. The desulfurization assembly 3 includes a diversion cylinder 301 fixedly connected to the inner wall of the tower body 1. A liquid delivery pipe 302 is sleeved on the outside of the diversion cylinder 301, and the input end of the liquid delivery pipe 302 extends to the outside of the tower body 1. An atomizing nozzle 303 arranged in a ring is connected to the liquid delivery pipe 302, and the atomizing nozzle 303 extends into the inside of the diversion cylinder 301. An external alkaline solution can be delivered to the atomizing nozzle 303 through the liquid delivery pipe 302. The atomizing nozzle 303 then atomizes the alkaline solution and sprays it onto the diversion cylinder 301. When liquefied gas passes through... The desulfurization effect is achieved by passing through the atomized alkaline solution. A rectifier plate 304 is fixedly connected to the inner wall of the diversion tube 301, and the upper surface of the rectifier plate 304 is provided with annularly arranged dispersion holes. The liquefied gas will flow upward from the dispersion holes on the rectifier plate 304. The dispersion holes can evenly disperse the liquefied gas into multiple fine airflows. These dispersed airflows pass through the inside of the diversion tube 301 in an orderly manner, which greatly increases the contact area and contact time between the liquefied gas and the alkaline solution, ensuring that the alkaline solution can fully react with the sulfides in the liquefied gas and significantly improve the desulfurization efficiency.

[0027] As attached Figure 1 With appendix Figure 4 As shown: A gas-liquid separation component 4 is provided at the top of the tower body 1. The gas-liquid separation component 4 includes a connecting cylinder 401 fixedly connected to the top of the tower body 1. A drying cotton 402 is fixedly connected to the inner wall of the connecting cylinder 401. The desulfurized liquefied gas will carry the alkaline solution upward. The drying cotton 402 can absorb the alkaline solution in the liquefied gas, preventing the alkaline solution from being discharged with the purified gas and further reducing the waste of alkaline agents.

[0028] As attached Figure 4 As shown: The gas-liquid separation component 4 also includes a squeezing structure disposed inside the connecting cylinder 401 for squeezing the drying cotton 402 to remove the alkaline solution from the drying cotton 402. The squeezing structure of the gas-liquid separation component 4 includes a motor 403 embedded in the upper surface of the connecting cylinder 401. The output end of the motor 403 is fixedly connected to a rotating rod 404. The bottom end of the rotating rod 404 extends to the bottom of the drying cotton 402, and the outer surface of the rotating rod 404 is rotatably connected to the drying cotton 402. A set of squeezing rollers 405 are rotatably connected to the outer surface of the rotating rod 404. The two squeezing rollers 405 are located above and below the drying cotton 402, respectively. When the motor 403 is working, it will drive the rotating rod 404 to rotate. At the same time, the rotating rod 404 will drive the squeezing rollers 405 to rotate. The squeezing rollers 405 will squeeze the drying cotton 402, which can squeeze out the alkaline solution saturated inside the drying cotton 402, so that the drying cotton 402 can restore its adsorption activity. It can dry the continuously passing liquefied gas and absorb the residual alkaline solution droplets.

[0029] As attached Figure 4As shown: The upper surface of the connecting cylinder 401 is connected to the discharge pipe 408, and the output end of the discharge pipe 408 is connected to the connecting flange 409. The connecting flange 409 can be used to connect to an external storage device, and the liquefied gas after being removed from the alkaline solution can be discharged from the discharge pipe 408 to the external storage device.

[0030] As attached Figure 4 As shown: A reinforcing plate 406 is rotatably connected to the bottom end of the rotating rod 404. The other end of the reinforcing plate 406 is connected to the inner wall of the connecting cylinder 401. The reinforcing plate 406 can support the rotating rod 404, further enhancing the stability of the rotating rod 404 during rotation. A protective shell 407 is rotatably connected to the outer surface of the rotating rod 404. The upper surface of the protective shell 407 is connected to the inner top wall of the connecting cylinder 401. The protective shell 407 can wrap and protect the motor 403, further extending the service life of the motor 403.

[0031] As attached Figure 2 As shown: A collection hood 5 is fixedly connected to the inner wall of the tower body 1. A connecting pipe 6 is connected to the bottom surface of the collection hood 5, and the output end of the connecting pipe 6 extends to the outside of the tower body 1. When alkaline solution drips, it will collect inside the collection hood 5, and the alkaline solution will flow out to the outside of the tower body 1 along the connecting pipe 6, which is convenient for staff to collect and process the alkaline solution.

[0032] Working principle: During use, liquefied petroleum gas (LPG) is introduced into the tower body 1. The LPG enters the guide tube 301 and flows upward from the rectifier plate 304. Then, an alkaline solution is injected into the delivery pipe 302. The alkaline solution is sprayed from the atomizing nozzle 303 onto the guide tube 301, and the LPG passes through the atomized alkaline solution, thus achieving the desulfurization effect on the LPG. Subsequently, the LPG carries some alkaline solution droplets upward, and the drying cotton 402 dries the LPG, absorbing the alkaline residue carried in the LPG. The alkaline solution droplets are removed to prevent the alkaline solution from being discharged with the liquefied gas, thus avoiding waste of the reagent. At the same time, the motor 403 can be controlled to work. The motor 403 drives the rotating rod 404 to rotate, and the rotating rod 404 drives the squeezing roller 405 to rotate. The squeezing roller 405 squeezes the drying cotton 402, which can squeeze out the alkaline solution saturated inside the drying cotton 402, so that the drying cotton 402 can restore its adsorption activity. It can dry the continuously passing liquefied gas and absorb the residual alkaline solution droplets.

Claims

1. A liquefied petroleum gas (LPG) desulfurization tower, comprising a tower body (1) and an inlet pipe (2) disposed outside the tower body (1), characterized in that: The tower body (1) is equipped with a desulfurization component (3) inside, and a gas-liquid separation component (4) is provided at the top of the tower body (1). The gas-liquid separation component (4) includes a connecting cylinder (401) fixedly connected to the top of the tower body (1), and a drying cotton (402) is fixedly connected to the inner wall of the connecting cylinder (401). The gas-liquid separation assembly (4) also includes a compression structure disposed inside the connecting cylinder (401) for squeezing the dry cotton (402) to detach the alkaline solution from the dry cotton (402).

2. The liquefied gas desulfurization tower according to claim 1, characterized in that: The desulfurization component (3) includes a diversion cylinder (301) fixedly connected to the inner wall of the tower body (1). The diversion cylinder (301) is fitted with a liquid delivery pipe (302), and the input end of the liquid delivery pipe (302) extends to the outside of the tower body (1). The liquid delivery pipe (302) is connected to annularly arranged atomizing nozzles (303), and the atomizing nozzles (303) extend into the interior of the diversion cylinder (301).

3. The liquefied gas desulfurization tower according to claim 2, characterized in that: The inner wall of the diversion tube (301) is fixedly connected to a rectifier plate (304), and the upper surface of the rectifier plate (304) is provided with a ring of dispersing holes.

4. The liquefied gas desulfurization tower according to claim 1, characterized in that: The extrusion structure of the gas-liquid separation component (4) includes a motor (403) embedded in the upper surface of the connecting cylinder (401). The output end of the motor (403) is fixedly connected to a rotating rod (404). The bottom end of the rotating rod (404) extends to the bottom of the drying cotton (402), and the outer surface of the rotating rod (404) is rotatably connected to the drying cotton (402). A set of extrusion rollers (405) are rotatably connected to the outer surface of the rotating rod (404). The two extrusion rollers (405) are located above and below the drying cotton (402), respectively.

5. The liquefied gas desulfurization tower according to claim 4, characterized in that: The bottom end of the rotating rod (404) is rotatably connected to a reinforcing plate (406), and the other end of the reinforcing plate (406) is connected to the inner wall of the connecting cylinder (401).

6. The liquefied gas desulfurization tower according to claim 4, characterized in that: The outer surface of the rotating rod (404) is rotatably connected to a protective shell (407), and the upper surface of the protective shell (407) is connected to the inner top wall of the connecting cylinder (401).

7. The liquefied gas desulfurization tower according to claim 1, characterized in that: The upper surface of the connecting cylinder (401) is connected to a discharge pipe (408), and the output end of the discharge pipe (408) is connected to a connecting flange (409).

8. The liquefied gas desulfurization tower according to claim 1, characterized in that: The inner wall of the tower body (1) is fixedly connected to a collection cover (5), and the bottom surface of the collection cover (5) is connected to a connecting pipe (6), and the output end of the connecting pipe (6) extends to the outside of the tower body (1).

Images