Multi-stage honeycomb-shaped distributed crude oil vacuum degassing tower plate structure

Abstract

The utility model belongs to the technical field of tower plate structures, and particularly relates to a multi-stage honeycomb-distributed crude oil vacuum degassing tower plate structure, which comprises a shell, an external vacuum device for forming a vacuum environment inside the shell, and an inner cavity of the shell is sequentially provided with an input pipe, an output pipe, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe from top to bottom, the honeycomb tower plate assembly increases the contact area of crude oil and a vacuum environment. Through the systematic layout of the shell, the input pipe, the honeycomb tower plate assembly, the stirring mechanism and the discharging pipe, a complete crude oil vacuum degassing system is constructed; the external vacuum device enables a vacuum environment to be formed in the shell and provides driving force for degassing; the honeycomb tower plate assembly can increase the contact area between the crude oil and the vacuum environment, so that the crude oil can be better subjected to degassing reaction; the stirring mechanism can crush bubbles in crude oil, so that the mass transfer efficiency is improved; all the parts work cooperatively, and the problems that traditional degassing equipment is low in efficiency and high in energy consumption are effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of tower plate structure technology, and particularly relates to a crude oil vacuum degassing tower plate structure with a multi-level honeycomb distribution. Background Technology

[0002] Crude oil degassing is a crucial step in the oil extraction and refining process. Its purpose is to remove dissolved gases (such as methane, ethane, and other light hydrocarbons) and free gases from crude oil to meet the requirements of subsequent processing and improve crude oil quality. Currently, the main degassing technologies used in the industry include:

[0003] Gravity sedimentation degassing relies on the density difference between gas and liquid to allow bubbles to float and separate naturally. However, it has extremely low efficiency for separating tiny bubbles, long residence time, and large equipment size.

[0004] Vacuum flash degassing: Gas escapes by reducing pressure, but the gas-liquid contact area of ​​traditional flash tower plates is limited and the mass transfer efficiency is low, resulting in incomplete degassing.

[0005] In summary, existing crude oil vacuum degassing technologies suffer from problems such as low mass transfer efficiency, incomplete degassing, and large equipment size. Therefore, there is an urgent need for a more efficient, energy-saving, and reliable degassing tray structure and system solution. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned technical problems by providing a multi-level honeycomb-shaped crude oil vacuum degassing tower plate structure.

[0007] In view of this, the present invention provides a multi-stage honeycomb-shaped crude oil vacuum degassing tower plate structure, comprising:

[0008] The housing is connected to an external vacuum device to create a vacuum environment inside. The inner cavity of the housing, from top to bottom, contains the following components:

[0009] The inlet pipe is used to input crude oil.

[0010] Honeycomb tray assembly increases the contact area between crude oil and the vacuum environment;

[0011] Agitation mechanism breaks up air bubbles in crude oil;

[0012] The discharge pipe is used for discharging degassed crude oil.

[0013] Preferably, the cellular tower plate assembly includes multiple cellular tower plate bodies, which are stacked and connected end-to-end in sequence.

[0014] Preferably, the main body of the honeycomb tower plate includes a honeycomb layer and an upper surface layer and a lower surface layer respectively disposed on the upper and lower sides of the honeycomb layer.

[0015] Preferably, the lateral surface of the honeycomb layer is provided with a regularly arranged array of honeycomb-shaped holes.

[0016] Preferably, the honeycomb layer, the upper surface layer, and the lower surface layer are all integrally formed from 316L stainless steel.

[0017] Preferably, the front and rear sides of the honeycomb tower plate body are sealed against the front and rear sides of the inner cavity of the shell, respectively.

[0018] Preferably, in the main body of the honeycomb tower plate, there are gaps between both sides of the honeycomb layer and both sides of the inner cavity of the shell, one side of the upper or lower surface layer abuts against one side of the inner cavity of the shell, and the other side forms a gap with the inner cavity of the shell, and several gaps form crude oil flow channels.

[0019] Preferably, a guide ring is provided between the honeycomb tower plate body and the stirring mechanism, the bottom of the guide ring is provided with an opening, and the outer periphery of the guide ring is inclined downward toward the center of the opening.

[0020] Preferably, the stirring mechanism includes a rotary motor installed at the bottom of the housing, the drive end of the rotary motor extending through the bottom of the housing into the housing and connected to a stirring element.

[0021] Preferably, a flow guide seat is installed at the bottom of the inner cavity of the housing, and the drive end of the rotary motor passes through the flow guide seat via a sealed bearing.

[0022] The beneficial effects of this utility model are:

[0023] This invention constructs a complete crude oil vacuum degassing system through a systematic layout of a shell, an input pipe, a honeycomb tower plate assembly, a stirring mechanism, and a discharge pipe. An external vacuum device creates a vacuum environment within the shell, providing the driving force for degassing. The honeycomb tower plate assembly increases the contact area between the crude oil and the vacuum environment, allowing for better degassing. The stirring mechanism breaks up air bubbles in the crude oil, thereby improving mass transfer efficiency. The coordinated operation of these components effectively solves the problems of low efficiency and high energy consumption in traditional degassing equipment, achieving excellent crude oil degassing results. Attached Figure Description

[0024] Figure 1 This is a front sectional view of the present invention;

[0025] Figure 2 This is a schematic diagram of the end of the main body of the honeycomb tower plate of this utility model.

[0026] The markings in the diagram are as follows:

[0027] 1. Shell; 2. Inlet pipe; 3. Outlet pipe; 4. Honeycomb tower plate body; 5. Upper surface layer; 6. Honeycomb layer; 7. Lower surface layer; 8. Gap; 9. Exhaust vent; 10. Vacuum tube; 11. Guide ring; 12. Guide seat; 13. Rotary motor; 14. Agitator. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0029] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] like Figure 1 and Figure 2As shown, the multi-level honeycomb-shaped crude oil vacuum degassing tray structure includes:

[0033] Shell 1, which can be used directly as a vacuum tower or installed in an existing vacuum tower as a tray structure, is connected to an external vacuum device to create a vacuum environment inside (the vacuum level is determined by the volume of the shell in the actual implementation of this embodiment, and how the vacuum device creates a vacuum environment in a closed environment is a well-known technology, which will not be elaborated here). The inner cavity of the shell 1 is provided with the following components from top to bottom:

[0034] Input pipe 2 is used for inputting crude oil;

[0035] Honeycomb tray assembly increases the contact area between crude oil and the vacuum environment;

[0036] Agitation mechanism breaks up air bubbles in crude oil;

[0037] Discharge pipe 3 is used for discharging degassed crude oil.

[0038] A complete crude oil vacuum degassing system is constructed through the systematic layout of shell 1, inlet pipe 2, honeycomb tray assembly, stirring mechanism, and outlet pipe 3. The external vacuum device creates a vacuum environment within shell 1, providing the driving force for degassing; the honeycomb tray assembly increases the contact area between crude oil and the vacuum environment, allowing for better degassing; the stirring mechanism breaks up air bubbles in the crude oil, thereby improving mass transfer efficiency; and the coordinated operation of these components effectively solves the problems of low efficiency and high energy consumption in traditional degassing equipment, achieving excellent crude oil degassing results.

[0039] As a preferred example of this application, the honeycomb tray assembly includes multiple honeycomb tray bodies 4, which are stacked and connected end-to-end in sequence (with a pore size of 10-25mm). The structure of multiple honeycomb tray bodies 4 stacked and connected end-to-end forms a three-dimensional mass transfer space, which forces crude oil to flow along a specific path, prolongs its residence time in the tower, optimizes the gas-liquid separation path, and realizes efficient reverse mass transfer. Compared with a single-layer tray, it can effectively improve the degassing depth and avoid the problem of incomplete degassing caused by gas short-flow.

[0040] As a preferred example of this application, the honeycomb tower plate body 4 includes a honeycomb layer 6 and an upper surface layer 5 and a lower surface layer 7 respectively disposed on the upper and lower sides of the honeycomb layer 6. The lateral surface of the honeycomb layer 6 is provided with a regularly arranged array of honeycomb-shaped holes. When crude oil passes through, the array of honeycomb holes on the lateral surface of the honeycomb layer 6 forms a certain shear force on the crude oil, effectively destroying the colloidal structure of the crude oil and promoting the improvement of the light hydrocarbon desorption rate. At the same time, the regularly arranged channels can generate stable turbulence, increase the probability of bubble collision, and achieve efficient removal of free gas.

[0041] As a preferred example of this application, the honeycomb layer 6, the upper surface layer 5 and the lower surface layer 7 are all integrally formed from 316L stainless steel. The specific integral forming process of stainless steel eliminates the stress concentration points of traditional welded structures, improves the fatigue strength and corrosion resistance of the material, extends the overall service life of the tower plate and reduces maintenance costs.

[0042] As a preferred example of this application, the front and rear sides of the honeycomb tower plate body 4 are respectively sealed and abutted against the front and rear sides of the inner cavity of the shell 1 (it can be integrally formed with the inner wall of the shell 1 or abutted through a rubber layer). The sealed abutting structure between the honeycomb tower plate body 4 and the inner cavity of the shell 1 restricts the crude oil path, forcing the crude oil to flow in a specific path and requiring it to pass through all the honeycomb layers 6.

[0043] As a preferred example of this application, in the honeycomb tower plate body 4, there are gaps 8 on both sides of the honeycomb layer 6 and both sides of the inner cavity of the shell 1. One side of the upper surface layer 5 or the lower surface layer 7 abuts against one side of the inner cavity of the shell 1, and the other side forms a gap 8 with the inner cavity of the shell 1. Several gaps 8 form crude oil flow channels. An exhaust hole 9 is provided at the position corresponding to the gap 8 on the right side of the shell 1 of the upper surface layer 5 or the lower surface layer 7. With the help of the vacuum tube 10 provided at the top of the shell 1 (the vacuum tube 10 is connected to a vacuum device, and the gas can be discharged under the action of pressure difference (flowing towards the top of the shell 1)).

[0044] As a preferred example of this application, a guide ring 11 is provided between the honeycomb tower plate body 4 and the stirring mechanism. The bottom of the guide ring 11 is provided with an opening. The outer periphery of the upper surface of the guide ring 11 is inclined downward toward the center of the opening, and the outer periphery of the lower surface is inclined upward toward the center of the opening. The inclined structure at the top of the guide ring 11 guides crude oil to flow evenly into the stirring zone in the circumferential direction, and the inclined structure at the bottom guides gas to rise above the guide ring 11.

[0045] As a preferred example of this application, the stirring mechanism includes a rotary motor 13 installed at the bottom of the housing 1. The rotary motor 13 is a variable frequency motor with adjustable speed. The drive end of the rotary motor 13 extends through the bottom of the housing 1 into the housing 1 and is connected to a stirring element 14. The stirring element 14 breaks the crude oil column falling from the honeycomb tower plate body 4 into a group of droplets. Centrifugal force is used to make the droplets impact the inner wall of the housing 1, forming secondary atomization at the moment of impact, further increasing the gas-liquid contact area. After the droplets impact the inner wall of the housing 1, they form a flowing oil film. The oil film flows downward under the action of gravity and fully contacts the vacuum environment inside the housing 1. Finally, the crude oil is discharged.

[0046] As a preferred example of this application, a flow guide seat 12 is installed at the bottom of the inner cavity of the housing 1. The drive end of the rotary motor 13 passes through the flow guide seat 12 via a sealed bearing. The conical design of the flow guide seat 12 optimizes the fluid outlet path and discharges crude oil from the discharge pipe 3. The discharge pipe 3 has a Y-shaped design, with its top connected to the bottom of the housing 1 and its bottom converging into a channel for discharge. Both the input pipe 2 and the discharge pipe 3 are equipped with solenoid valves, which, together with the vacuum device, ensure a vacuum environment inside the housing 1.

[0047] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A multi-stage honeycomb-shaped crude oil vacuum degassing tray structure, characterized in that: include: The housing (1) is connected to an external vacuum device to create a vacuum environment inside. The inner cavity of the housing (1) is provided with the following components from top to bottom: Input pipe (2) is used to input crude oil; Honeycomb tray assembly increases the contact area between crude oil and the vacuum environment; Agitation mechanism breaks up air bubbles in crude oil; The discharge pipe (3) is used for discharging degassed crude oil; The cellular tower plate assembly includes multiple cellular tower plate bodies (4), which are stacked and connected end to end in sequence. The main body (4) of the honeycomb tower plate includes a honeycomb layer (6) and an upper surface layer (5) and a lower surface layer (7) respectively disposed on the upper and lower sides of the honeycomb layer (6). The lateral surface of the honeycomb layer (6) is provided with a regularly arranged array of honeycomb-shaped holes.

2. The multi-stage, honeycomb-distributed crude oil vacuum degassing tray structure according to claim 1, characterized in that: The honeycomb layer (6), upper surface layer (5) and lower surface layer (7) are all integrally formed from 316L stainless steel.

3. The multi-stage honeycomb-shaped crude oil vacuum degassing tray structure according to claim 2, characterized in that: The front and rear sides of the honeycomb tower plate body (4) are respectively sealed and abutted against the front and rear sides of the inner cavity of the shell (1).

4. The multi-stage honeycomb-shaped crude oil vacuum degassing tray structure according to claim 3, characterized in that: In the main body (4) of the honeycomb tower plate, there are gaps (8) between the two sides of the honeycomb layer (6) and the two sides of the inner cavity of the shell (1). One side of the upper surface layer (5) or the lower surface layer (7) abuts against one side of the inner cavity of the shell (1), and the other side forms a gap (8) with the inner cavity of the shell (1). Several gaps (8) form crude oil flow channels.

5. The multi-stage honeycomb-shaped crude oil vacuum degassing tray structure according to claim 4, characterized in that: A guide ring (11) is provided between the main body (4) of the honeycomb tower plate and the stirring mechanism. The bottom of the guide ring (11) is provided with an opening, and the outer periphery of the guide ring (11) is inclined downward toward the center of the opening.

6. The multi-stage honeycomb-shaped crude oil vacuum degassing tray structure according to claim 5, characterized in that: The stirring mechanism includes a rotary motor (13) installed at the bottom of the housing (1). The drive end of the rotary motor (13) extends through the bottom of the housing (1) into the housing (1) and is connected to a stirring element (14).

7. The multi-stage, honeycomb-distributed crude oil vacuum degassing tray structure according to claim 6, characterized in that: A flow guide seat (12) is installed at the bottom of the inner cavity of the housing (1), and the drive end of the rotary motor (13) passes through the flow guide seat (12) through a sealed bearing.

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