Low-temperature diesel absorption column for oil and gas treatment

Abstract

The utility model is suitable for oil and gas treatment technical field provides a kind of low temperature diesel oil absorption tower for oil and gas treatment, including absorption tower and with the diesel tank of absorption tower intercommunication arrangement;Oil inlet, it is opened in the surface of absorption tower, located absorption tower top, with the diesel tank is connected by oil pipe;Oil outlet, it is opened in the circumferential lateral surface of absorption tower, located absorption tower near bottom position, with the diesel tank is connected by oil pipe;Filter cartridge, detachably installed in the oil outlet side, for filtering used diesel oil;Cleaning assembly, installation in the oil outlet side, with the filter cartridge transmission connection, for cleaning the filter cartridge surface.The device solves the problem that the existing absorption tower is easy to accumulate impurities on the surface of the filter screen when filtering diesel oil, causing the oil outlet to be blocked, achieves the technical effect of self-cleaning of the filter screen, preventing the filter screen from being blocked and reducing downtime maintenance.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas treatment technology, and more specifically, it relates to a low-temperature diesel absorption tower for oil and gas treatment. Background Technology

[0002] In oil and gas processing, cryogenic diesel absorption towers are commonly used equipment. They utilize cryogenic diesel as an absorbent, which comes into countercurrent contact with oil and gas inside the tower to absorb light hydrocarbons and other components. After absorption, the diesel rich in absorbent is discharged from the bottom of the tower and is usually filtered and recycled back to the diesel tank for reuse.

[0003] In existing technologies, filters or filter cartridges are often installed at the oil outlet of the bottom of the absorption tower to intercept solid impurities or condensates that may be carried in the diesel fuel, preventing them from entering subsequent systems and causing equipment wear or blockage. However, during actual operation, as filtration proceeds, impurities continuously accumulate on the filter surface, leading to filter blockage, decreased flow rate, and increased pressure differential. This not only affects the normal circulation and processing efficiency of diesel fuel, but in severe cases, it may even require shutdown for cleaning or replacement of the filter.

[0004] Therefore, there is an urgent need in this field for a low-temperature diesel absorption tower for oil and gas treatment that has self-cleaning capabilities, can effectively prevent filter cartridge clogging, and reduce downtime maintenance. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a low-temperature diesel absorption tower for oil and gas treatment with self-cleaning ability, preventing filter clogging and reducing downtime maintenance.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A cryogenic diesel absorption tower for oil and gas treatment includes an absorption tower and a diesel tank connected in communication with the absorption tower; an inlet is formed through the surface of the absorption tower, located at the top of the absorption tower, and connected to the diesel tank via an oil pipe; an outlet is formed through the outer periphery of the absorption tower, located near the bottom of the absorption tower, and connected to the diesel tank via an oil pipe; a filter cartridge is detachably installed on one side of the outlet for filtering used diesel fuel; and a cleaning component is installed on one side of the outlet and is kinetically connected to the filter cartridge for cleaning the surface of the filter cartridge.

[0007] The present invention is further configured such that: a positive four-way pipe is fixedly installed on the surface of the oil outlet; a filter cylinder is rotatably mounted on the inner circumferential side of the positive four-way pipe; and a guide ring is fixed at the end of the filter cylinder.

[0008] The present invention is further configured such that: a cleaning cavity is fixed on one side of the positive four-way pipe; and an avoidance groove is provided in connection between the cleaning cavity and the positive four-way pipe.

[0009] The present invention is further configured such that: the cleaning component includes a push rod, the push rod is movably disposed through the inner wall of the cleaning chamber, and movably abuts against the guide ring.

[0010] The present invention is further configured such that: a brush is fixed to the end of the push rod; the brush slides in conjunction with the clearance groove.

[0011] The present invention is further configured such that: a connecting spring is sleeved on the outer periphery of the push rod; one end of the connecting spring is fixedly connected to the inner wall of the cleaning chamber; and the other end of the connecting spring is fixedly connected to the brush.

[0012] The present invention is further configured such that: comb teeth are fixed between the inner walls of the clearance groove; the comb teeth are in active contact with the brush.

[0013] The present invention is further configured such that: a liquid distributor fixedly connected to the oil inlet is fixed inside the absorption tower; packing plates are symmetrically fixed between the inner walls of the absorption tower; and packing material is filled between the packing plates.

[0014] The present invention is further configured such that: a liquid redistributor is fixed below the packing plate; the packing plates are symmetrically fixed below the liquid redistributor; and the packing material is filled between the packing plates.

[0015] The present invention is further configured such that: a fan is fixed to the bottom surface of the absorption tower; an air inlet is provided through the bottom surface of the absorption tower; and an exhaust port is fixed to the upper surface of the absorption tower.

[0016] The advantages of this utility model include: 1. This utility model achieves the action of cleaning the filter cartridge by rotating it by setting up a cleaning component, filter cartridge and guide ring, which solves the problem of easy clogging of the filter cartridge in the prior art, avoids the operation failure of the oil and gas treatment system and improves the stability of system operation.

[0017] 2. This utility model achieves brush cleaning by setting comb teeth, avoiding the decline in brush cleaning ability due to long-term use and extending the service life of the brush. Attached Figure Description

[0018] 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.

[0019] Figure 1This is a schematic diagram of a cryogenic diesel absorption tower for oil and gas processing.

[0020] Figure 2 This is a schematic diagram of the internal structure of the absorption tower in this utility model.

[0021] Figure 3 for Figure 1 A cross-sectional view from the frontal viewpoint.

[0022] Figure 4 for Figure 3 A magnified diagram of region A.

[0023] Figure 5 for Figure 1 A top-down sectional view.

[0024] In the diagram: 1. Absorption tower; 2. Diesel tank; 3. Oil inlet; 4. Oil outlet; 5. Filter cartridge; 6. Cleaning assembly; 61. Push rod; 62. Brush; 63. Connecting spring; 7. Four-way pipe; 8. Guide ring; 9. Cleaning chamber; 10. Clearance groove; 11. Comb teeth; 12. Liquid distributor; 13. Packing pressure plate; 14. Packing; 15. Liquid redistributor; 16. Fan; 17. Air inlet; 18. Exhaust port. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0028] Example 1 Please see Figure 2 , Figure 5 The present invention provides the following technical solution: Specifically, it refers to a low-temperature diesel absorption tower for oil and gas treatment, including an absorption tower 1 and a diesel tank 2 connected to the absorption tower 1; an oil inlet 3, which is opened through the surface of the absorption tower 1, located at the top of the absorption tower 1, and connected to the diesel tank 2 through an oil pipe; an oil outlet 4, which is opened through the outer peripheral side of the absorption tower 1, located near the bottom of the absorption tower 1, and connected to the diesel tank 2 through an oil pipe; a filter cartridge 5, which is detachably installed on one side of the oil outlet 4, for filtering used diesel fuel; and a cleaning component 6, which is installed on one side of the oil outlet 4, is kinetically connected to the filter cartridge 5, and is used to clean the surface of the filter cartridge 5 and for self-cleaning.

[0029] A four-way pipe 7 is fixedly installed on the surface of the oil outlet 4; a filter cylinder 5 is rotatably mounted on the inner circumferential side of the four-way pipe 7; and a guide ring 8 is fixed at the end of the filter cylinder 5.

[0030] A cleaning chamber 9 is fixed on one side of the positive four-way pipe 7; the cleaning chamber 9 is connected to the positive four-way pipe 7 and is provided with an avoidance groove 10.

[0031] The cleaning component 6 includes a push rod 61, which is movably disposed through the inner wall of the cleaning chamber 9 and movably abuts against the guide ring 8.

[0032] A brush 62 is fixed to the end of the push rod 61; the brush 62 is slidably engaged with the clearance groove 10.

[0033] A connecting spring 63 is sleeved on the outer periphery of the push rod 61; one end of the connecting spring 63 is fixedly connected to the inner wall of the cleaning chamber 9; the other end of the connecting spring 63 is fixedly connected to the brush 62.

[0034] The specific application of this embodiment is as follows: Diesel fuel enters the absorption tower 1 through the top inlet 3, fully contacts the oil and gas, and after absorption, the diesel fuel containing impurities is discharged from the bottom outlet 4 of the tower and enters the filter cartridge 5 in the four-way pipe 7 for filtration. By manually rotating the filter cartridge 5 (or starting the drive motor to drive the filter cartridge 5 to rotate), the filter cartridge 5 synchronously drives the guide ring 8 at its end to rotate. The guide ring 8 continuously contacts the end of the push rod 61 and pushes the push rod 61 to slide on the inner wall of the cleaning chamber 9. The push rod 61 drives the brush 62 to move along the surface of the filter cartridge 5 to brush away the impurities attached to the outer surface of the filter cartridge 5. At the same time, the connecting spring 63 continuously extends and retracts during the movement of the push rod 61, assisting the brush 62 in achieving reciprocating cleaning action. The filtered diesel fuel flows back to the diesel tank 2 through the oil pipe for recycling. The cleaning process does not require stopping the machine, effectively avoiding the problem of reduced oil flow caused by the blockage of the filter cartridge 5, and ensuring the continuous and stable operation of the oil and gas treatment system.

[0035] Example 2 Please see Figure 1-4This second embodiment is an improvement on the first embodiment as follows: Specifically, comb teeth 11 are fixed between the inner walls of the clearance groove 10; the comb teeth 11 are in active contact with the brush 62.

[0036] The absorption tower 1 is equipped with a liquid distributor 12 that is fixedly connected to the oil inlet 3; packing plates 13 are symmetrically fixed between the inner walls of the absorption tower 1; and packing 14 is filled between the packing plates 13.

[0037] A liquid redistributor 15 is fixed below the packing plate 13; the packing plates 13 are symmetrically fixed below the liquid redistributor 15; the packing 14 is filled between the packing plates 13.

[0038] A fan 16 is fixed to the bottom surface of the absorption tower 1; an air inlet 17 is opened through the bottom surface of the absorption tower 1; and an exhaust port 18 is fixed to the upper surface of the absorption tower 1.

[0039] One specific application of this embodiment is as follows: Based on Embodiment 1, when the brush 62 moves with the push rod 61 to clean the filter cartridge 5, the comb teeth 11 in the clearance groove 10 make active contact with the surface of the brush 62, which can scrape off the impurities wrapped around the brush 62, realizing the self-cleaning of the brush 62, avoiding the adhesion of impurities to the brush 62 and reducing the cleaning effect, thus extending the service life of the brush 62. The liquid distributor 12 in the absorption tower 1 evenly sprays the diesel oil entering from the oil inlet 3 onto the packing 14 between the upper packing pressure plates 13, improving the contact efficiency with oil and gas; the liquid redistributor 15 can redistribute the falling diesel oil to ensure that the lower packing 14 can fully exert its absorption function. When the blower 16 runs, it accelerates the gas flow in the tower. The unabsorbed gas is discharged through the exhaust port 18, and the air inlet 17 continuously introduces the oil and gas to be treated, forming an efficient oil and gas treatment cycle.

[0040] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0041] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0044] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A cryogenic diesel absorption tower for oil and gas treatment, comprising an absorption tower and a diesel tank connected in communication with the absorption tower; characterized in that: An oil inlet is formed through the surface of the absorption tower, located at the top of the absorption tower, and connected to the diesel tank via an oil pipe; An oil outlet is provided through the outer periphery of the absorption tower, located near the bottom of the absorption tower, and is connected to the diesel tank via an oil pipe. A filter cartridge, detachably installed on one side of the oil outlet, is used to filter used diesel fuel. A cleaning component is installed on one side of the oil outlet and is connected to the filter cartridge via a drive mechanism to clean the surface of the filter cartridge.

2. The cryogenic diesel absorption tower for oil and gas treatment according to claim 1, characterized in that: A positive four-way pipe is fixedly installed on the surface of the oil outlet; a filter cylinder is rotatably mounted on the inner circumferential side of the positive four-way pipe; and a guide ring is fixed at the end of the filter cylinder.

3. The cryogenic diesel absorption tower for oil and gas treatment according to claim 2, characterized in that: A cleaning chamber is fixed on one side of the positive four-way pipe; the cleaning chamber is connected to the positive four-way pipe and is provided with an avoidance groove.

4. The cryogenic diesel absorption tower for oil and gas treatment according to claim 3, characterized in that: The cleaning assembly includes a push rod that is movably disposed through the inner wall of the cleaning chamber and movably abuts against the guide ring.

5. The cryogenic diesel absorption tower for oil and gas treatment according to claim 4, characterized in that: A brush is fixed to the end of the push rod; the brush slides in conjunction with the clearance groove.

6. The cryogenic diesel absorption tower for oil and gas treatment according to claim 5, characterized in that: A connecting spring is fitted on the outer periphery of the push rod; one end of the connecting spring is fixedly connected to the inner wall of the cleaning chamber; the other end of the connecting spring is fixedly connected to the brush.

7. The cryogenic diesel absorption tower for oil and gas treatment according to claim 6, characterized in that: The inner walls of the clearance groove are fixed with comb teeth; the comb teeth are in active contact with the brush.

8. The cryogenic diesel absorption tower for oil and gas treatment according to claim 7, characterized in that: The absorber tower is equipped with a liquid distributor that is fixedly connected to the oil inlet; packing plates are symmetrically fixed between the inner walls of the absorber tower; and packing material is filled between the packing plates.

9. The cryogenic diesel absorption tower for oil and gas treatment according to claim 8, characterized in that: A liquid redistributor is fixed below the packing plate; the packing plates are symmetrically fixed below the liquid redistributor; the packing material is filled between the packing plates.

10. The cryogenic diesel absorption tower for oil and gas treatment according to claim 9, characterized in that: A fan is fixed to the bottom surface of the absorption tower; an air inlet is opened through the bottom surface of the absorption tower; and an exhaust port is fixed to the upper surface of the absorption tower.

Images