A condensate desulfurization device

Abstract

This utility model relates to the field of condensate desulfurization, and more particularly to a condensate desulfurization device, comprising: a tank body, including a first mixing chamber and a second mixing chamber, which are connected by a sandwich cavity; a motor, the output end of which is coaxially connected to a rotating rod, the rotating rod passing through the first mixing chamber and extending into the second mixing chamber; a sleeve, disposed in the second mixing chamber, the rotating rod passing through the interior of the sleeve and rotating relative to the sleeve through a bearing, the upper end of the sleeve being fixed to the bottom of the first mixing chamber by a connecting block; a floating block, sleeved on the outside of the sleeve and slidingly engaged with the sleeve, having several connecting rods circumferentially arranged thereon; a filter screen fixedly connected to the end of the connecting rods; and an oil collection pipe, fixedly connected to the side of the floating block, the oil suction end of which is placed between the floating block and the filter screen, and the oil discharge end passing through the upper side wall of the tank body and communicating with the outside. The purpose of this application is to provide a condensate desulfurization device that adaptively adjusts according to the internal liquid level, so as to effectively ensure the purity of the desulfurized condensate product and improve the collection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of condensate oil desulfurization, and in particular to a condensate oil desulfurization device. Background Technology

[0002] Condensate is an important light hydrocarbon resource that plays a vital role in oil and gas extraction and processing. However, condensate often contains various sulfides, which directly affect the quality of the oil. Furthermore, during subsequent storage, transportation, and processing, these impurities can easily lead to equipment corrosion, catalyst poisoning, and environmental pollution.

[0003] Application number CN202120083041.7 provides a condensate oil desulfurization stabilization device. This application aims to achieve full mixing and reaction of condensate oil and desulfurizing agent by setting up a preliminary mixing tank, a reaction tank with a mixing chamber and a separation chamber inside, a circulating pump and a stirring mechanism, and using the density difference between oil and water to make the desulfurized oil float to the surface for phase separation. Then, the reaction products are separated from the desulfurized oil and discharged through a fixed partition plate and an oil discharge pipe inside the reaction tank.

[0004] For example, application number CN202220293562.X, "A Desulfurization Stabilization Device for Condensate Oil," proposes a desulfurization stabilization device for condensate oil consisting of a tank, a tank cover, a motor, and an adjustable stirring assembly. It adjusts the position of the stirring rod to adapt to the mixing requirements of condensate oil and desulfurizing agent under different ratios, and collects the floating desulfurized oil through a fixed pipeline.

[0005] However, existing technologies have the following problems in the separation process of condensate oil and desulfurizing agent mixture reaction liquid: the liquid level and phase interface control between the reaction zone and the oil separation zone in the mixture are not stable, and the existing structure for recovering desulfurized oil usually relies on a fixed overflow port. This passive and fixed separation method is poorly adaptable to changes in actual working conditions. If the liquid level in the tank is too low, the desulfurized oil cannot be discharged continuously and efficiently through the fixed overflow port. If the liquid level in the tank is too high, the unreacted mixture and impurities that have not been completely settled are likely to overflow along with the desulfurized oil, resulting in the final desulfurized oil being contaminated and failing to meet the expected desulfurization standards.

[0006] Therefore, there is a need for a condensate desulfurization device that dynamically and adaptively adjusts the internal liquid level and phase interface to effectively ensure the purity of the desulfurized condensate product and improve collection efficiency. Utility Model Content

[0007] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a condensate oil desulfurization device that dynamically and adaptively adjusts according to the internal liquid level, so as to effectively ensure the product purity of desulfurized condensate oil and improve collection efficiency.

[0008] This utility model adopts the following technical solution: a condensate desulfurization device, comprising: a tank body, including a first mixing chamber at the top and a second mixing chamber at the bottom, which are connected by a sandwich cavity in the side wall of the tank body; a motor, located at the center of the top of the tank body, with a rotating rod coaxially connected to its output end, the rotating rod penetrating the first mixing chamber vertically and extending into the second mixing chamber; a sleeve, located in the second mixing chamber, with the rotating rod passing through the interior of the sleeve and rotating relative to the sleeve through a bearing, the upper end of the sleeve being fixed to the bottom of the first mixing chamber by a connecting block; a guide groove longitudinally formed on the surface of the sleeve; a floating block, sleeved on the outside of the sleeve, slidingly engaging with the guide groove for longitudinal movement, and having several downwardly extending connecting rods circumferentially arranged thereon; a filter screen fixedly connected to the end of the connecting rods; and an oil collection pipe, fixedly connected to the side of the floating block, with its oil suction end placed between the floating block and the filter screen, and its oil discharge end penetrating the upper side wall of the tank body and communicating with the outside.

[0009] As a preferred technical solution of this utility model, the tank is divided into an inner tank and an outer tank that are nested together. The inner sidewall of the outer tank and the outer sidewall of the inner tank form the interlayer cavity. The top of the inner tank is provided with a recessed first mixing cavity. The interior of the inner tank is the second mixing cavity. After the mixed liquid overflows from the first mixing cavity, it flows into the second mixing cavity through the interlayer cavity.

[0010] As a preferred technical solution of this utility model, the top of the tank is provided with an oil inlet and a liquid inlet that connect to the first mixing chamber; wherein, the oil inlet is used for the input of condensate oil, and the liquid inlet is used for the input of desulfurizing agent.

[0011] As a preferred technical solution of this utility model, a first stirring blade and a second stirring blade are fixedly connected to the rotating rod. The first stirring blade is located in the first mixing chamber and is a flat blade. The second stirring blade is located in the second mixing chamber and is located at the tail end of the rotating rod. It is a disc turbine blade.

[0012] As a preferred technical solution of this utility model, the floating block is made of a material with a density less than that of condensate oil, so as to float on the surface of the mixed liquid in the second mixing chamber; a ball bearing is sandwiched between the floating block and the guide groove, and the ball bearing is a hollow plastic ball bearing.

[0013] As a preferred technical solution of this utility model, the filter screen is a multi-layer mesh structure with filter pores, and its outer periphery is provided with an edge, which is adapted to be fixed to the tail end of the connecting rod.

[0014] As a preferred technical solution of this utility model, the oil receiving pipe is fixed to the side of the floating block by a snap-fit ​​component. The oil receiving pipe is provided with a folded part, which is arranged parallel to the sleeve. The extension and retraction of the folded part is adapted to the extreme lifting and lowering distance of the floating block.

[0015] As a preferred technical solution of this utility model, the tank body is provided with a circulation pipeline. One end of the circulation pipeline passes through the second mixing chamber, and the other end is connected to a circulation port through a circulation pump. The circulation port is located at the top of the tank body and is connected to the first mixing chamber.

[0016] As a preferred technical solution of this utility model, a base and a slag discharge pipe are provided at the bottom of the tank. The surface of the slag discharge pipe is provided with an electromagnetic valve and is connected to the bottom of the second mixing chamber for removing residue.

[0017] Compared with the prior art, the present invention has the following beneficial effects: This application presents an adaptive separation and recovery system consisting of a floating block, guide groove, ball bearings, connecting rod, filter screen, and retractable oil collection pipe. Utilizing the floating block's buoyancy and low-friction guiding characteristics, it dynamically adapts to real-time changes in the liquid level of the mixture in the second mixing chamber and the interface between the condensate oil and the desulfurizing agent. This ensures the filter screen remains positioned below the liquid surface and above the interface, enabling precise extraction of the desulfurized condensate oil and preventing the contamination of lower-layer desulfurizing agent or impurities. It also overcomes the shortcomings of traditional fixed recovery structures, such as low efficiency and easy product contamination under varying operating conditions. Furthermore, this application employs a two-stage mixing method combining the first and second mixing chambers, supplemented by an external circulation pipeline for material recirculation and reprocessing. This effectively optimizes the reaction efficiency between the condensate oil and the desulfurizing agent, improving the utilization rate of the desulfurizing agent and the overall desulfurization effect.

[0018] The specific technical solution and beneficial effects of this utility model will be described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this application. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of this application. Figure 2 ; Figure 3 This is a top view of the overall structure of this application; Figure 4 for Figure 3 Cross-sectional view at point AA; Figure 5 This is a schematic diagram of the internal structure of the tank in this application; In the diagram: 1. Tank body; 101. Inner tank; 102. Outer tank; 2. First mixing chamber; 3. Second mixing chamber; 4. Jacketed chamber; 5. Motor; 6. Rotating rod; 7. Sleeve; 8. Bearing; 9. Connecting block; 10. Guide groove; 11. Floating block; 12. Connecting rod; 13. Filter screen; 14. Oil collection pipe; 15. Oil suction end; 16. Oil discharge end; 17. Oil inlet; 18. Liquid inlet; 19. First stirring blade; 20. Second stirring blade; 21. Folding part; 22. Circulation pipeline; 23. Circulation pump; 24. Base; 25. Slag discharge pipe. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] This utility model relates to a condensate oil desulfurization device. Please refer to [link / reference]. Figures 1 to 5 As shown, the tank 1 of this application includes a first mixing chamber 2 at the top and a second mixing chamber 3 at the bottom. The two mixing chambers are connected by a sandwich cavity 4 formed on the side wall of the tank 1. The first mixing chamber 2 is used for the initial mixing of condensate oil and desulfurizing agent. After the mixture overflows, it is converged and guided by the sandwich cavity 4, allowing it to flow smoothly into the second mixing chamber 3 for secondary mixing. Specifically, the tank 1 is composed of an inner tank 101 and an outer tank 102 nested together. The sandwich cavity 4 is formed between the inner side wall of the outer tank 102 and the outer side wall of the inner tank 101. The top of the inner tank 101 has a recessed first mixing chamber 2, and the inner cavity of the inner tank 101 constitutes the second mixing chamber 3. When the mixture in the first mixing chamber 2 overflows, it can flow smoothly into the second mixing chamber 3 through the sandwich cavity 4, forming a continuous fluid channel.

[0023] A motor 5 is located at the center of the top of the tank 1, with its output end coaxially connected to a rotating rod 6. The rotating rod 6 extends vertically through the first mixing chamber 2 and into the second mixing chamber 3, serving as a connecting component for stirring transmission. Simultaneously, a sleeve 7 is installed inside the second mixing chamber 3. The rotating rod 6 passes through the inside of the sleeve 7 and rotates relative to the sleeve 7 via a bearing 8, ensuring that the rotating rod 6 rotates smoothly while the sleeve 7 remains stationary. The upper end of the sleeve 7 is fixed to the bottom of the first mixing chamber 2 via a connecting block 9, providing stable support. A longitudinally formed guide groove 10 on the surface of the sleeve 7 provides precise guidance for the longitudinal movement of the floating block 11.

[0024] Furthermore, a first stirring blade 19 and a second stirring blade 20 are fixedly connected to the rotating rod 6. The first stirring blade 19 is located in the first mixing chamber 2 and is a flat blade, suitable for primary mixing. The second stirring blade 20 is located in the second mixing chamber 3, at the tail end of the rotating rod 6, and is a disc turbine blade, designed to provide stronger shearing and mixing effects, promoting the full reaction between condensate oil and desulfurizing agent. The top of the tank body 1 is also provided with an oil inlet 17 and a liquid inlet 18 connecting to the first mixing chamber 2, for inputting condensate oil and desulfurizing agent into the first mixing chamber 2, respectively.

[0025] Furthermore, the floating block 11 is sleeved on the outside of the sleeve 7 and moves longitudinally through sliding engagement with the guide groove 10. Specifically, to ensure its sensitive and smooth floating characteristics, the floating block 11 is made of a material with a density less than that of condensate oil, such as high-density polyethylene, polypropylene, polyurethane foam, or glass fiber reinforced plastic, which are lightweight and corrosion-resistant materials, so that it always floats on the surface of the mixed liquid in the second mixing chamber 3. Hollow plastic balls are sandwiched between the floating block 11 and the guide groove 10 to significantly reduce the frictional resistance of the floating block 11 when it moves longitudinally along the sleeve 7, ensuring its sensitivity in rising and falling with the liquid level. At the same time, the hollow plastic material is corrosion-resistant and has low buoyancy, avoiding any impact on the overall floating characteristics of the floating block 11. The floating block 11 is circumferentially provided with several A downwardly extending connecting rod 12 is fixed to the end of a filter screen 13. The filter screen 13 is a multi-layered mesh structure with filter pores and an edge on its outer periphery, which is adapted to fix the tail end of the connecting rod 12 to ensure the connection is firm. An oil receiving pipe 14 is fixed to the side of the floating block 11, and its oil suction end 15 is placed between the floating block 11 and the filter screen 13 to ensure that the oil is drawn from the upper layer of the mixture, i.e., the desulfurized condensate oil layer. The oil discharge end 16 of the oil receiving pipe 14 passes through the upper side wall of the tank body 1 and connects to the outside. At the same time, in order to accommodate the lifting and lowering of the floating block 11, the oil receiving pipe 14 is provided with a folding part 21. In a preferred embodiment, the folding part is a corrugated pipe. The folding part 21 is arranged parallel to the sleeve 7, and its extension and contraction can fully adapt to the extreme lifting and lowering distance of the floating block 11.

[0026] The device also includes an external circulation pipeline 22, one end of which extends into the second mixing chamber 3, and the other end is connected via a circulation pump 23 to a circulation port located at the top of the tank 1 and connected to the first mixing chamber 2. This circulation pipeline 22 is used to return the mixture in the second mixing chamber 3 to the first mixing chamber 2, achieving material recycling and further improving reaction efficiency and desulfurization effect. In addition, a base 24 and a slag discharge pipe 25 are provided at the bottom of the tank 1. A solenoid valve is installed on the slag discharge pipe 25 and connects to the bottom of the second mixing chamber 3, used to periodically remove residues or sediments generated during the reaction process, ensuring long-term stable operation of the device.

[0027] The working principle is as follows: Condensate oil and desulfurizing agent enter the first mixing chamber 2 through the oil inlet 17 and liquid inlet 18 for preliminary mixing. After overflow, they enter the second mixing chamber 3 through the jacketed chamber 4. In the two mixing chambers, the rotating rod 6 drives the first stirring blade 19 and the second stirring blade 20 to fully stir the mixture, promoting the reaction and separation of condensate oil and desulfurizing agent. In the second mixing chamber 3, as the reaction proceeds, the desulfurized condensate oil floats to the surface due to density differences, forming a phase interface with the lower layer of desulfurizing agent. At this time, the floating block 11 is driven by its own buoyancy and always floats with the surface of the mixture. The position of the filter screen 13 connected to the floating block 11 is determined by the length of the connecting rod 12 and the instantaneous liquid level of the floating block 11. Therefore, the filter screen 13 can always adaptively position itself below the surface of the mixture and above the phase interface between the condensate oil and desulfurizing agent, ensuring that only the desulfurized condensate oil is extracted, avoiding the removal of the lower layer of desulfurizing agent or impurities. Meanwhile, the oil collection pipe 14, fixed to the side of the floating block 11, has its oil suction end 15 adjusting in height synchronously with the rise and fall of the floating block 11. The folded part 21 of the oil collection pipe 14 ensures that the oil collection pipe 14 can smoothly extend and retract during the entire rising and falling process of the floating block 11, realizing continuous and uninterrupted recovery of desulfurized condensate oil.

[0028] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0029] Although the present invention 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; and these 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 the present invention.

Claims

1. A condensate desulfurization apparatus characterized by comprising: include: The tank (1) includes a first mixing chamber (2) located at the top and a second mixing chamber (3) located at the bottom, which are connected by a sandwich cavity (4) on the side wall of the tank (1); The motor (5) is located at the center of the top of the tank (1), and its output end is coaxially connected to a rotating rod (6). The rotating rod (6) passes through the first mixing chamber (2) in the vertical direction and extends into the second mixing chamber (3). The sleeve (7) is located in the second mixing chamber (3). The rotating rod (6) passes through the inside of the sleeve (7) and rotates relative to the sleeve (7) through the bearing (8). The upper end of the sleeve (7) is fixed to the bottom of the first mixing chamber (2) through the connecting block (9). The sleeve (7) has a guide groove (10) longitudinally opened on its surface. A floating block (11) is fitted on the outside of the sleeve (7) and slides with the guide groove (10) to move longitudinally. It is provided with several downwardly extending connecting rods (12) in its circumference; the end of the connecting rod (12) is fixed to the filter screen (13). The oil collection pipe (14) is fixed to the side of the floating block (11), with its oil suction end (15) placed between the floating block (11) and the filter screen (13), and its oil discharge end (16) penetrating the upper side wall of the tank body (1) to connect to the outside.

2. A condensate desulphurisation unit as claimed in claim 1, characterised in that, The tank (1) is divided into an inner tank (101) and an outer tank (102) that are nested together. The inner sidewall of the outer tank (102) and the outer sidewall of the inner tank (101) form the interlayer cavity (4). The top of the inner tank (101) is provided with a recessed first mixing cavity (2). The interior of the inner tank (101) is the second mixing cavity (3). After the mixed liquid overflows from the first mixing cavity (2), it flows into the second mixing cavity (3) through the interlayer cavity (4).

3. A condensate desulphurisation unit as claimed in claim 1, wherein, The top of the tank (1) is provided with an oil inlet (17) and a liquid inlet (18) that connect to the first mixing chamber (2); wherein the oil inlet (17) is used for the input of condensate oil and the liquid inlet (18) is used for the input of desulfurizing agent.

4. A condensate desulphurisation unit as claimed in claim 1, wherein, A first stirring blade (19) and a second stirring blade (20) are fixedly connected to the rotating rod (6). The first stirring blade (19) is located in the first mixing chamber (2) and is a flat blade. The second stirring blade (20) is located in the second mixing chamber (3) and is located at the tail end of the rotating rod (6). It is a disc turbine blade.

5. A condensate desulfurization unit as claimed in claim 1, wherein, The floating block (11) is made of a material with a density less than that of condensate oil, so as to float on the surface of the mixed liquid in the second mixing chamber (3); a ball bearing is sandwiched between the floating block (11) and the guide groove (10), and the ball bearing is a hollow plastic ball bearing.

6. A condensate desulphurisation unit according to claim 5, characterised in that, The filter (13) is a multi-layer mesh structure with filter pores, and its outer periphery is provided with an edge, which is adapted to be fixed to the tail end of the connecting rod (12).

7. A condensate desulfurization unit as claimed in claim 1, wherein, The oil receiving pipe (14) is fixed to the side of the floating block (11) by a snap-fit. The oil receiving pipe (14) is provided with a folding part (21). The folding part (21) is arranged parallel to the sleeve (7). The extension and retraction of the folding part (21) is adapted to the limit lifting distance of the floating block (11).

8. A condensate desulfurization unit as claimed in claim 1, wherein, The tank (1) is provided with a circulation pipe (22) on its exterior. One end of the circulation pipe (22) passes through the second mixing chamber (3), and the other end is connected to a circulation port via a circulation pump (23). The circulation port is located at the top of the tank (1) and is connected to the first mixing chamber (2).

9. A condensate oil desulfurization device according to claim 1, characterized in that, A base (24) and a slag discharge pipe (25) are provided at the bottom of the tank (1). The surface of the slag discharge pipe (25) is provided with a solenoid valve and is connected to the bottom of the second mixing chamber (3) for the purpose of removing residue.

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