Visual liquid collecting device

Abstract

The utility model belongs to the technical field of natural gas dehydration, and discloses a visual liquid collecting device which comprises a cylinder body, a high-position connector and a low-position connector are arranged on the cylinder body at intervals in the vertical direction, the high-position connector and the low-position connector are communicated with a high-position liquid level meter connector and a low-position liquid level meter connector of an absorption tower respectively, and a low-position liquid outlet is formed in the bottom of the cylinder body. A plurality of side liquid outlets are uniformly formed in the side part of the cylinder body at intervals in the vertical direction, a groove body structure is formed in one side of the cylinder body in the vertical direction, the groove body structure is communicated with an inner cavity of the cylinder body, the top of the groove body structure is higher than the high-position connector, the bottom of the groove body structure is lower than the low-position connector, and a visible plate is installed in the groove body structure in a sealed mode; the visual liquid collecting device provided by the utility model is convenient to install, can be used for observing the liquid level state, can realize separation of triethylene glycol, hydrocarbon substances and other impurities, and ensures normal operation of a natural gas dehydration device.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas dehydration, in particular to a visual liquid collecting device. Background Art

[0002] As the cleanest chemical energy source, natural gas plays a crucial role in achieving a low-carbon energy transition. In recent years, with the country's increasing investment in gas storage infrastructure, a number of near-depletion oil and gas fields have been transformed into gas storage facilities, ushering in a new era. However, due to the unique geological conditions, these gas storage facilities occasionally carry over impurities such as hydrocarbons during gas extraction. These impurities are characterized by random quantities and complex composition, making the addition of separate dehydrogenation equipment prohibitively expensive and impractical. Therefore, hydrocarbon removal is currently primarily accomplished by installing skimmers and wastewater outlets within natural gas dehydration units.

[0003] However, a large amount of impurities such as hydrocarbons enter the natural gas dehydration device. During the dehydration process, impurities such as hydrocarbons will condense from the natural gas and transfer to the liquid phase, and enter the liquid storage area at the bottom of the absorption tower together with the water-absorbing triethylene glycol. Due to different densities, light oil, heavy oil and other impurities are quickly stratified at the bottom of the absorption tower and then gathered in the upper layer of triethylene glycol, causing the liquid level meter to malfunction and affecting the normal operation of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a visual liquid collecting device which is easy to install and can observe the liquid level state and separate the liquid.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A visual liquid collection device includes a cylinder, which is provided with a high-level interface and a low-level interface at intervals along the vertical direction. The high-level interface and the low-level interface are respectively connected to the high-level liquid level gauge interface and the low-level liquid level gauge interface of the absorption tower. The bottom of the cylinder is provided with a low-level drainage port, and the side of the cylinder is evenly spaced along the vertical direction. A trough structure is opened on one side of the cylinder in the vertical direction, and the trough structure is connected to the inner cavity of the cylinder, and the top of the trough structure is higher than the high-level interface, and the bottom of the trough structure is lower than the low-level interface, and a visual panel is sealed and installed in the trough structure.

[0007] Preferably, the plurality of side drainage ports are all lower than the high-position interface, and the side drainage port located at the bottom is flush with the low-position interface.

[0008] Preferably, the trough structure includes a plurality of mounting grooves, and the plurality of mounting grooves are evenly spaced along the vertical direction and opened on one side of the cylinder, the top of the mounting groove at the top is higher than the high-position interface, the bottom of the mounting groove at the bottom is lower than the low-position interface, and the visual panel is sealed and installed in each of the mounting grooves.

[0009] Preferably, the mounting groove extends in a vertical direction and has a rectangular cross-section.

[0010] Preferably, the outer wall of the visual panel is provided with scales along the vertical direction.

[0011] Preferably, an exhaust port is provided on the top of the cylinder, and an exhaust valve is installed inside the exhaust port.

[0012] Preferably, a liquid level switch interface is provided on the side of the cylinder, and a liquid level sensor is installed on the liquid level switch interface.

[0013] Preferably, drain valves are installed inside the low-position drain port and the side-position drain port.

[0014] Preferably, the cylinder is made of stainless steel.

[0015] Preferably, the viewing panel is made of high-strength glass.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides a visual liquid collecting device, including a cylinder, which is provided with a high-level interface and a low-level interface at intervals along the vertical direction. The high-level interface and the low-level interface are respectively connected to the high-level liquid level gauge interface and the low-level liquid level gauge interface of the absorption tower. The bottom of the cylinder is provided with a low-level drainage port, and the side of the cylinder is evenly spaced along the vertical direction. A trough structure is provided on one side of the cylinder in the vertical direction. The trough structure is connected to the inner cavity of the cylinder, and the top of the trough structure is higher than the high-level interface, and the bottom of the trough structure is lower than the low-level interface, and a visual plate is sealed and installed in the trough structure. The visual liquid collecting device provided by the utility model is easy to install, can observe the liquid level status, and can separate triethylene glycol, hydrocarbon substances and other impurities, thereby ensuring the normal operation of the natural gas dehydration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a visual liquid collection device provided by an embodiment of the present utility model;

[0019] Figure 2 This is a front view of a visual liquid collection device provided by an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Cylinder; 11. High-position interface; 12. Low-position interface; 13. Exhaust port; 14. Low-position drain port; 15. Side drain port; 16. Liquid level switch interface; 2. Visual panel; 3. Extension plate. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0023] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0025] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0026] During the dehydration process of natural gas, a large amount of impurities such as hydrocarbons mixed in the natural gas enter the natural gas dehydration device. During the dehydration process, impurities such as hydrocarbons will condense from the natural gas and transfer to the liquid phase, and enter the liquid storage area at the bottom of the absorption tower together with the water-absorbing triethylene glycol. Due to different densities, light oil, heavy oil and other impurities are quickly stratified at the bottom of the absorption tower and then gathered in the upper layer of triethylene glycol, causing the liquid level meter to malfunction and affecting the normal operation of the equipment.

[0027] Therefore, this embodiment provides a visual liquid collection device that is easy to install and can observe the liquid level status and separate the liquid.

[0028] See also Figure 1 and Figure 2 The visualized liquid collection device provided in this embodiment includes a cylinder 1, which is connected to the absorption tower in the natural gas dehydration device. The liquid in the absorption tower can enter the cylinder 1 and realize liquid separation inside the cylinder 1. For example, triethylene glycol, hydrocarbon substances and other impurities are separated to ensure the normal operation of the natural gas dehydration device.

[0029] Optionally, the cylinder 1 is made of stainless steel, which has high structural strength, is not easily corroded, has high safety and long service life.

[0030] It should be noted that the visual liquid collecting device provided in this embodiment is provided with a heat preservation device on the outside, and the heat preservation device is turned on when in use to prevent impurities such as hydrocarbons from solidifying.

[0031] Preferably, the cylinder 1 is arranged vertically, and a high-level interface 11 and a low-level interface 12 are provided at intervals along the vertical direction. The high-level interface 11 of the cylinder 1 is connected to the high-level liquid level gauge interface of the absorption tower, and the low-level interface 12 of the cylinder 1 is connected to the low-level liquid level gauge interface of the absorption tower. There is no need to modify the absorption tower, which saves costs and can introduce the liquid inside the absorption tower into the inner cavity of the cylinder 1.

[0032] For example, the high-level interface 11 and the low-level interface 12 of the cylinder 1 are both provided with flange plates, and are adapted to the high-level liquid level gauge interface and the low-level liquid level gauge interface of the absorption tower, thereby realizing the flange connection between the high-level interface 11 of the cylinder 1 and the high-level liquid level gauge interface of the absorption tower, and the flange connection between the low-level interface 12 of the cylinder 1 and the low-level liquid level gauge interface of the absorption tower, thereby improving the connection strength and preventing leakage.

[0033] Preferably, an exhaust port 13 is provided at the top of the cylinder 1, and an exhaust valve is installed inside the exhaust port 13. When in use, the exhaust valve is opened, and when the liquid in the absorption tower enters the cylinder 1, the air can be discharged through the exhaust valve to facilitate the entry of the liquid.

[0034] Furthermore, a trough structure is vertically provided on one side of the cylinder 1, the trough structure being connected to the inner cavity of the cylinder 1. A viewing panel 2 is sealed and installed on the trough structure, which blocks the trough structure, so that the stratification state of the liquid inside the cylinder 1 can be observed through the viewing panel 2. Preferably, the top of the trough structure is higher than the high-level interface 11, and the bottom of the trough structure is lower than the low-level interface 12, so as to expand the observation range and prevent the liquid stratification inside the cylinder 1 from being missed.

[0035] For example, the visual panel 2 is made of high-strength glass, which is transparent, has high structural strength and high safety.

[0036] Optionally, the trough structure includes multiple mounting slots, each of which is evenly spaced vertically along one side of the barrel 1. In this embodiment, three mounting slots are provided, with the spacing between adjacent mounting slots being the same. In other feasible embodiments, a different number of mounting slots may be provided based on practical circumstances, and this is not a limitation here. Furthermore, the top of the mounting slot located at the top is higher than the high-position interface 11, and the bottom of the mounting slot located at the bottom is lower than the low-position interface 12. Each mounting slot is sealed with a visual panel 2, and the visual panel 2 blocks each mounting slot one by one.

[0037] Preferably, the mounting groove is extended in the vertical direction to facilitate observation of the stratified state of the liquid, and the cross-section of the mounting groove is rectangular to expand the observation area.

[0038] Further preferably, the outer wall of the visual panel 2 is provided with scales in the vertical direction so as to intuitively obtain the state of the stratified liquid level.

[0039] Optionally, see Figure 1 The edge of the mounting groove is circumferentially connected to the extension plate 3, and the extension plate 3 protrudes from the outer wall of the cylinder 1. Preferably, the groove wall of the mounting groove is circumferentially sealed and connected to the visual plate 2. At the same time, the inner wall of the extension plate 3 is also circumferentially sealed and connected to the visual plate 2, and the visual plate 2 is circumferentially connected to the extension plate 3 using multiple bolts to improve the structural strength.

[0040] Furthermore, a low-level drain port 14 is provided at the bottom of the cylinder 1, and a plurality of side drain ports 15 are evenly spaced along the vertical direction on the side of the cylinder 1. The low-level drain port 14 and the plurality of side drain ports 15 are connected to different containers through pipes. By opening the low-level drain port 14 or different side drain ports 15, the discharge of liquids in different layers at corresponding heights can be achieved, thereby completing liquid level control and liquid sampling in different layers.

[0041] For example, drain valves are installed inside the low drain port 14 and the side drain port 15 to facilitate draining.

[0042] Preferably, multiple side drainage ports 15 are all lower than the high-level interface 11, providing buffer time and space for the stratification process of the liquid entering the cylinder 1 through the high-level interface 11. The side drainage ports 15 located at the bottom are flush with the low-level interface 12 to prevent the liquid from flowing back through the low-level interface 12.

[0043] Further preferably, both the low-position drain port 14 and the side-position drain port 15 are provided with flange plates, which are then flange-connected to corresponding pipes to improve connection strength and prevent leakage.

[0044] Furthermore, a liquid level switch interface 16 is provided on the side of the cylinder 1 , and a liquid level sensor is installed in the liquid level switch interface 16 to control the liquid level. Preferably, the liquid level switch interface 16 is flush with the high level interface 11 .

[0045] The present embodiment provides a visual liquid collection device that is connected to an absorption tower in a natural gas dehydration device. The device is easy to install, can observe the liquid level status, and can separate triethylene glycol, hydrocarbon substances, and other impurities, thereby ensuring the normal operation of the natural gas dehydration device.

[0046] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A visual liquid collection device, characterized in that: The invention comprises a cylinder (1), wherein the cylinder (1) is provided with a high-position interface (11) and a low-position interface (12) at intervals along the vertical direction, wherein the high-position interface (11) and the low-position interface (12) are respectively connected to the high-position liquid level gauge interface and the low-position liquid level gauge interface of the absorption tower, a low-position liquid discharge port (14) is provided at the bottom of the cylinder (1), and a plurality of side liquid discharge ports (15) are evenly spaced along the vertical direction on the side of the cylinder (1), a trough structure is provided on one side of the cylinder (1) along the vertical direction, the trough structure is connected to the inner cavity of the cylinder (1), and the top of the trough structure is higher than the high-position interface (11), and the bottom of the trough structure is lower than the low-position interface (12), and a visual panel (2) is sealed and installed in the trough structure.

2. A visual liquid collection device according to claim 1, characterized in that: The plurality of side drainage ports (15) are all lower than the high-position interface (11), and the side drainage port (15) located at the bottom is flush with the low-position interface (12).

3. The visual liquid collection device according to claim 1, characterized in that: The trough structure comprises a plurality of mounting grooves, wherein the plurality of mounting grooves are evenly spaced apart along the vertical direction and are opened on one side of the cylinder (1), the top of the mounting groove at the top is higher than the high-position interface (11), the bottom of the mounting groove at the bottom is lower than the low-position interface (12), and the visual panel (2) is sealed and installed in each of the mounting grooves.

4. A visual liquid collection device according to claim 3, characterized in that: The mounting groove extends in a vertical direction and has a rectangular cross-section.

5. A visual liquid collection device according to any one of claims 1 to 4, characterized in that: The outer wall of the visual panel (2) is provided with scales along the vertical direction.

6. A visual liquid collection device according to any one of claims 1 to 4, characterized in that: An exhaust port (13) is provided at the top of the cylinder (1), and an exhaust valve is installed inside the exhaust port (13).

7. A visual liquid collection device according to any one of claims 1 to 4, characterized in that: A liquid level switch interface (16) is provided on the side of the cylinder (1), and a liquid level sensor is installed on the liquid level switch interface (16).

8. A visual liquid collection device according to any one of claims 1 to 4, characterized in that: Drain valves are installed inside the low-position drain port (14) and the side-position drain port (15).

9. A visual liquid collection device according to any one of claims 1 to 4, characterized in that: The cylinder (1) is made of stainless steel.

10. A visual liquid collection device according to any one of claims 1 to 4, characterized in that: The visual panel (2) is made of high-strength glass.

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