A distillation column tray for removing drilling fluid toxicity

Abstract

A distillation column tray for removing drilling fluid toxicity relates to the field of diversion tray technology. Multiple valve holes (101) are arranged in an array at intervals on the diversion tray body (1). A sliding rod (9) is provided at the middle position of the bottom of the valve plate (11). The sliding rod 9 is slidably connected in the annular hole provided in the guide ring (13). The valve plate 11 is supported on the top of the tube (4). A guide plate (7) is provided on the top of the diversion tray body (1). The tube is inserted into the inner cavity of the valve hole. An elastic limiting block fixedly connected to the bottom end of the tube passes through the valve hole and fits against the bottom surface of the diversion tray body. At the same time, the tube is fixed at both ends by the cooperation of the annular groove and the protruding ring, ensuring the tube is placed stably. The guide plate is attached to the top side of the diversion tray body for easy replacement at any time. Through the set guide groove, the liquid on the surface of the guide plate is easily guided to the top side of the valve hole through the guide hole, while avoiding a small amount of liquid volume remaining on the top side of the flat diversion tray body, so that the liquid can fully contact the gas.

Description

Technical Field

[0001] This utility model relates to the field of diversion tray technology, and in particular to a distillation column tray for removing drilling fluid toxicity. Background Technology

[0002] Drilling fluid is a type of treatment agent used to reduce flow resistance and cake resistance, decrease drill bit torque, increase hydraulic horsepower, and prevent sticking. It is synthesized from base oils and various additives. Environmentally friendly and non-toxic drilling fluid is a new type of drilling fluid system developed to solve the pollution problems caused to soil, water, and organisms by traditional drilling fluids (such as oil-based drilling fluids). Existing drilling lubricants are generally selected from mixtures of C10 to C18, and these mixtures all have strong toxicity.

[0003] A distillation column is a tower-type gas-liquid contact device used for distillation. It utilizes the fact that the components in a mixture have different volatility, i.e., different vapor pressures at the same temperature, to transfer lighter components from the liquid phase to the gas phase, while heavier components from the gas phase are transferred to the liquid phase, thereby achieving separation. Distillation columns are also a widely used mass and heat transfer device in petrochemical production.

[0004] However, there are some problems with the use of trays in distillation columns. When the valve plates of traditional trays are damaged, the toxicity of the mixture of C10 to C18 is not completely removed, and the entire tray needs to be replaced, which increases the overall cost of the tray and reduces its practicality. Utility Model Content

[0005] This invention addresses the drawback of traditional distillation column trays for removing drilling fluid toxicity, which require complete tray replacement after damage to the valve plate components, thus increasing the overall cost of the tray.

[0006] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0007] A distillation column tray for removing drilling fluid toxicity includes a split tray body and valve plates. The split tray body is a horizontally arranged disc-shaped structure with a notch on one side. An overflow weir is provided at the top of the split tray body at the notch. Multiple valve holes are arranged in an array at intervals on the split tray body. A tube is sleeved in each valve hole. A central tube is provided at the center of the tube cavity. The upper end of the central tube is flush with the top of the split tray body. A guide ring is provided at the top of the central tube cavity. The valve plate has a horizontal bottom and a convex top structure. A sliding rod is provided at the middle position of the bottom of the valve plate. The sliding rod is slidably connected in the annular hole of the guide ring. The valve plate rests on the top of the tube. A guide plate is provided at the top of the split tray body. The guide plate has a concave top center and a horizontal bottom structure. A funnel-shaped guide hole is provided on the guide plate at the position corresponding to the valve hole.

[0008] The distillation column trays used to remove drilling fluid toxicity have arc-shaped plates at the notches of the diversion trays, so that the area enclosed by the arc-shaped plates and the diversion trays forms a downcomer.

[0009] The distillation column trays used to remove drilling fluid toxicity have multiple connecting columns spaced around the central tube between the tube shell and the central tube.

[0010] The distillation column trays used to remove drilling fluid toxicity have a limiting plate at the lower end of the slide bar.

[0011] The distillation column tray for removing drilling fluid toxicity has an annular groove at the upper end of the valve hole and a protruding ring at the upper end of the outer wall of the tube. The protruding ring is located in the annular groove and supports the tube in the valve hole.

[0012] The distillation column tray used to remove drilling fluid toxicity has a tube with the same length as the valve orifice. A slightly outwardly radiating elastic limiting plate is provided at the lower end of the tube, which holds the tube in place within the valve orifice.

[0013] The diameter of the valve plate in the distillation column tray used to remove drilling fluid toxicity is larger than the outer diameter of the tube and smaller than the diameter of the guide hole.

[0014] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0015] This invention addresses the drawback of traditional distillation column trays for removing drilling fluid toxicity, which require complete tray replacement after damage to the valve plate components, thus increasing the overall cost of the tray.

[0016] The positive and progressive effects of this utility model are as follows:

[0017] The distillation column tray for removing drilling fluid toxicity proposed above has a tube inserted into the valve orifice. An elastic limiting block fixedly connected to the bottom end of the tube passes through the valve orifice and fits against the bottom surface of the distillation column tray. At the same time, the tube is fixed at both ends by the cooperation of the annular groove and the protruding ring, ensuring the tube is placed stably. When disassembling, the tube can be easily removed by moving the elastic limiting block and pushing it upward. This facilitates the replacement of valve plates and moving parts without replacing the entire column tray, reducing maintenance costs. It effectively controls the diversion effect, enabling the distillation column tray to effectively divert toxic substances from the C10 to C18 mixture by utilizing different boiling points under continuous health conditions.

[0018] The guide plate is attached to the top side of the diversion tower plate for easy replacement. The inner groove of the guide plate facilitates the flow of liquid on the surface of the guide plate through the guide hole to the top side of the valve hole. At the same time, it avoids a small amount of liquid remaining on the top side of the flat diversion tower plate, which facilitates full contact between the liquid and the gas, so that the toxicity of the C10 to C18 mixture can be separated and removed as soon as possible by utilizing the difference in boiling point. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 application.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 for Figure 2 A magnified view of the structure at point A in the middle;

[0023] Figure 4 This is a schematic diagram of the internal connection structure of the valve hole in the diversion tower plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of this utility model in use.

[0025] Explanation of reference numerals in the attached figures

[0026] 1. Diversion tower plate; 101. Valve hole; 2. Overflow weir; 3. Arc plate; 301. Downcomer hole; 4. Tube; 5. Connecting column; 6. Connecting cylinder; 601. Cylinder cavity; 7. Drain plate; 701. Drain groove; 702. Guide hole; 8. Baffle; 9. Sliding rod; 10. Annular groove; 11. Valve plate; 12. Protruding ring; 13. Guide ring; 14. Elastic limiting plate; 15. Tower body; 16. Cavity. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first," "second," etc., 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 for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0030] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0031] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0033] Combined with appendix Figures 1-4The distillation column tray for removing drilling fluid toxicity includes a diversion tray body 1 and valve plates 11. The diversion tray body 1 is a horizontally arranged disc-shaped structure with a notch on one side. An overflow weir 2 is provided at the top of the diversion tray body 1 at the notch. An arc-shaped plate 3 is provided at the notch of the diversion tray body 1, forming a downcomer 301 in the area enclosed by the arc-shaped plate 3 and the diversion tray body 1. Multiple valve holes 101 are arranged in an array at intervals on the diversion tray body 1. A tube 4 is sleeved in each valve hole 101. An annular groove 10 is provided at the upper end of the valve hole 101. A protruding ring 12 is provided at the upper end of the outer wall of the tube 4. The protruding ring 12 is located in the annular groove 10 and supports the tube 4 in the valve hole 101. The length of the tube 4 is the same as the length of the valve hole 101. A slightly outwardly diverging elastic limiting plate 14 is provided at the lower end of the tube 4. The elastic limiting plate 14 holds the tube 4 in place. The cylinder 4 is fitted into the valve hole 101. A central tube 6 is provided at the center of the cylinder cavity provided in the cylinder 4. Multiple connecting columns 5 are provided at intervals around the central tube 6 between the cylinder 4 and the central tube 6. The upper end of the central tube 6 is flush with the top of the diversion tower plate 1. A guide ring 13 is provided at the top of the cavity 601 of the central tube 6. The valve plate 11 has a horizontal bottom and a convex top structure. A sliding rod 9 is provided at the middle position of the bottom of the valve plate 11. The sliding rod 9 is slidably connected in the annular hole provided in the guide ring 13. A limiting plate 8 is provided at the lower end of the sliding rod 9. The valve plate 11 is supported on the top of the cylinder 4. A diversion plate 7 is provided at the top of the diversion tower plate 1. The diversion plate 7 has a concave top center and a horizontal bottom structure. A funnel-shaped guide hole 702 is provided on the diversion plate 7 at the position corresponding to the valve hole 101. The diameter of the valve plate 11 is larger than the outer diameter of the cylinder 4 and smaller than the diameter of the guide hole 702.

[0034] Implementing the distillation column tray for removing drilling fluid toxicity as described in this utility model, combined with the attached... Figure 5In the cavity 16 of the tower body 15, multiple units of this utility model are arranged at equal intervals from top to bottom and symmetrically on the left and right sides. After the guide plate 7 is attached to the top of the distribution tower plate 1, the liquid on the surface of the guide plate 7 is easily guided into the valve hole 101 through the guide hole 702 by the set guide groove 701, while avoiding a small amount of liquid remaining on the top of the flat distribution tower plate 1, so as to facilitate the full contact between the liquid and the gas. The top of the valve plate 11 is arc-shaped to avoid liquid residue on the top of the valve plate 11, and the bottom of the valve plate 11 is flat to facilitate the valve plate 11 to be attached to the top of the distribution tower plate 1. When the liquid phase of the previous layer of this utility model flows to this layer of this utility model through the downcomer 301, the liquid phase will accumulate on the surface of the tower plate until the liquid level exceeds the height of the overflow weir 2. The liquid phase will then cross the overflow weir 2 and flow to the lower layer of this utility model through the downcomer 301 of this layer. During installation, the tube 4 is inserted The elastic limiting piece 14, fixedly connected to the bottom end of the tube 4, passes through the valve hole 101 and fits against the bottom surface of the diversion tower plate 1. The protruding ring 12 engages in the annular groove 10 provided at the top of the valve hole 101, thus fixing both ends of the tube 4. When disassembling the tube 4, the elastic limiting piece 14 can be moved to push the tube 4 upward, which facilitates the replacement of the valve piece 11 without replacing the entire tower plate, reducing maintenance costs. During use, the valve piece 11 fits tightly against the diversion tower. The top of the plate 1 is covered by valve hole 101 to prevent liquid phase from leaking from valve hole 101 to the lower layer. When the gas phase below passes through valve hole 101, the gas phase pushes the valve plate 11 upward, lifting the valve plate 11 and opening valve hole 101. The gas phase then flows upward through valve hole 101 and rushes into the liquid layer on the surface of the diversion tower plate 1, forming bubbles and fully contacting the liquid phase to complete mass transfer. This facilitates full contact between the liquid and the gas, allowing the toxicity of the C10 to C18 mixture to be separated and removed as quickly as possible.

[0035] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0036] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A distillation column tray for removing drilling fluid toxicity, characterized in that: The system includes a diversion tower plate (1) and valve plates (11). The diversion tower plate (1) is a horizontally arranged disc-shaped structure. A notch is provided on one side of the diversion tower plate (1). An overflow weir (2) is provided at the top of the diversion tower plate (1) located at the notch. Multiple valve holes (101) are arranged in an array at intervals on the diversion tower plate (1). A tube (4) is sleeved in each valve hole (101). A central tube (6) is provided at the center of the cavity provided in the tube (4). The upper end of the central tube (6) is flush with the top of the diversion tower plate (1). 6) The top of the tube cavity (601) is provided with a guide ring (13), the valve plate (11) is a structure with a horizontal bottom and a convex top, and a sliding rod (9) is provided at the middle position of the bottom of the valve plate (11). The sliding rod (9) is slidably connected in the annular hole provided in the guide ring (13). The valve plate (11) is supported on the top of the tube (4). A diversion plate (7) is provided on the top of the diversion tower plate body (1). The diversion plate (7) is a structure with a concave top center and a horizontal bottom. A funnel-shaped guide hole (702) is provided on the diversion plate (7) at the position corresponding to the valve hole (101).

2. The distillation column tray for removing drilling fluid toxicity as described in claim 1, characterized in that: An arc-shaped plate (3) is provided at the notch of the diversion tower plate (1), so that the area enclosed by the arc-shaped plate (3) and the diversion tower plate (1) forms a downcomer (301).

3. The distillation column tray for removing drilling fluid toxicity as described in claim 1, characterized in that: Multiple connecting posts (5) are provided at intervals around the central tube (6) between the tube (4) and the central tube (6).

4. The distillation column tray for removing drilling fluid toxicity as described in claim 1, characterized in that: A limiting plate (8) is provided at the lower end of the slide bar (9).

5. The distillation column tray for removing drilling fluid toxicity as described in claim 1, characterized in that: An annular groove (10) is provided at the upper end of the valve hole (101), and a protruding ring (12) is provided at the upper end of the outer wall of the tube (4). The protruding ring (12) is located in the annular groove (10) and supports the tube (4) in the valve hole (101).

6. The distillation column tray for removing drilling fluid toxicity as described in claim 1, characterized in that: The length of the tube (4) is the same as the length of the valve hole (101). A slightly outwardly diverging elastic limiting piece (14) is provided at the lower end of the tube (4). The elastic limiting piece (14) holds the tube (4) in the valve hole (101).

7. The distillation column tray for removing drilling fluid toxicity as described in claim 1, characterized in that: The diameter of the valve plate (11) is greater than the outer diameter of the tube (4) and smaller than the diameter of the guide hole (702).

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