Liquid level meter for desulfurization device

Abstract

The utility model discloses a liquid level meter for a desulfurization device, relates to the technical field of liquid level meters, and solves the technical problem of gas collection at the top of the liquid level meter in the desulfurization device in the prior art. The liquid level meter for the desulfurization device comprises a liquid level meter body, the liquid level meter body is provided with a first communication port and a second communication port and arranged in the first direction, the first communication port and the second communication port are both communicated with a desulfurization tower in the working state, and the liquid level meter body is used for monitoring the liquid level in the desulfurization tower; one end of the exhaust valve is installed at the end, close to the first communication opening, of the liquid level meter and communicates with the liquid level meter, the other end of the exhaust valve communicates with the desulfurizing tower, and the exhaust valve is used for exhausting gas in the liquid level meter. Therefore, through the arrangement of the exhaust valve arranged at the top end of the liquid level meter, the gas gathered at the top end of the liquid level meter is exhausted out of the liquid level meter, so that the liquid level meter for the desulfurization device provided by the utility model avoids the phenomenon of gas gathering at the top, and further, the measurement result is more accurate, and the practicability is stronger.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid level gauges, and in particular relates to a liquid level gauge for a desulfurization device. Background Art

[0002] At present, there are two main desulfurization processes commonly used in the desulfurization devices and tail gas treatment devices of natural gas purification plants: amine liquid chemical absorption method and sulfone amine mixed solution physical + chemical absorption method. The desulfurization device uses the selective absorption characteristics of the desulfurization solvent to remove H2S and other sulfur-containing compounds in natural gas to achieve the quality index control of natural gas products; the tail gas treatment device reduces the sulfur-containing compounds in the tail gas of the sulfur recovery device to hydrogen sulfide or sulfur dioxide through combustion, and absorbs the hydrogen sulfide or sulfur dioxide through amine liquid for reuse, thereby achieving the standard emission of waste gas in the natural gas purification plant.

[0003] The desulfurization absorption tower and desulfurization regeneration tower are two key equipment of the desulfurization device and the tail gas treatment device. Their smooth operation is particularly important. Among them, the liquid level is one of the important control parameters. In order to ensure the accuracy of the liquid level measurement, field indicating liquid level gauges, control liquid level gauges and interlocking liquid level gauges are installed.

[0004] However, in the production process, amine liquid is very prone to foaming and blocking in the desulfurization absorption tower and regeneration tower. The amine liquid contains a large amount of gas. The gas analyzed from the rich amine liquid gathers on the upper part of the field indicating liquid level gauge to form a gas seal section, resulting in inaccurate liquid level measurement of the field indicating liquid level gauge and the appearance of a false liquid level. Utility Model Content

[0005] The utility model provides a liquid level gauge for a desulfurization device, which is used to solve the technical problem of gas collection at the top of the liquid level gauge in the desulfurization device in the prior art.

[0006] The utility model is realized through the following technical solutions:

[0007] A liquid level meter for a desulfurization device, comprising:

[0008] A liquid level meter having a first connecting port and a second connecting port and arranged along a first direction. In a working state, the first connecting port and the second connecting port are both connected to the desulfurization tower, and the liquid level meter is used to monitor the liquid level in the desulfurization tower;

[0009] An exhaust valve has one end installed at one end of the liquid level gauge close to the first connecting port and is connected to the liquid level gauge, and the other end of the exhaust valve is connected to the desulfurization tower. The exhaust valve is used to discharge the gas in the liquid level gauge.

[0010] Furthermore, there are multiple liquid level gauges, including a first liquid level gauge and a second liquid level gauge, the first liquid level gauge is located above the second liquid level gauge, and the first liquid level gauge and the second liquid level gauge are arranged along a first direction.

[0011] Furthermore, it includes a third liquid level gauge, which is located between the first liquid level gauge and the second liquid level gauge, and the second connecting port of the first liquid level gauge overlaps with the projection of the first connecting port of the third liquid level gauge in the second direction, the first connecting port of the second liquid level gauge overlaps with the projection of the second connecting port of the third liquid level gauge in the second direction, and the first direction and the second direction are arranged perpendicular to each other.

[0012] Furthermore, there are multiple third liquid level gauges, and the multiple third liquid level gauges are all arranged between the first liquid level gauge and the second liquid level gauge, and the multiple third liquid level gauges are arranged along the first direction, wherein the second connecting port of any one of two adjacent third liquid level gauges coincides with the projection of the first connecting port of the other third liquid level gauge in the second direction.

[0013] Furthermore, the exhaust valve is connected to the liquid level meter via threads.

[0014] Furthermore, there are multiple exhaust valves, and the multiple exhaust valves are arranged in a one-to-one correspondence with the multiple liquid level gauges.

[0015] Furthermore, the plurality of exhaust valves are connected to each other.

[0016] Furthermore, it also includes an operating component, the number of the operating components is multiple, and the multiple operating components are arranged in a one-to-one correspondence with the multiple liquid level gauges, and the operating component includes:

[0017] A first pipeline, used for connecting the first connecting port of the liquid level meter with the desulfurization tower;

[0018] a second pipeline, used for connecting the second connecting port of the liquid level gauge with the desulfurization tower;

[0019] There are two primary valves, which are respectively installed on the first pipeline and the second pipeline, and are used to control the opening and closing of the first pipeline and the second pipeline respectively.

[0020] Furthermore, the primary valve is a ball valve.

[0021] Furthermore, it also includes a plurality of drain valves, and the plurality of drain valves are respectively installed at the bottom ends of the plurality of liquid level meters.

[0022] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0023] The liquid level gauge for the desulfurization device provided by the utility model comprises a liquid level gauge and an exhaust valve, the liquid level gauge has a first connecting port and a second connecting port, and is arranged along a first direction, in a working state, the first connecting port and the second connecting port are both connected to a desulfurization tower, the liquid level gauge is used to monitor the liquid level in the desulfurization tower, one end of the exhaust valve is installed at one end of the liquid level gauge close to the first connecting port, and is connected to the liquid level gauge, the other end of the exhaust valve is connected to the desulfurization tower, and the exhaust valve is used to discharge the gas in the liquid level gauge.

[0024] Through the above structure, when using the liquid level meter for the desulfurization device provided by the utility model, the liquid level meter is first installed on the desulfurization tower, and the first connecting port and the second connecting port on the liquid level meter are connected to the desulfurization tower, and then the exhaust valve is installed at one end of the desulfurization tower close to the first connecting port. During use, the liquid level meter is connected to the desulfurization tower through the first connecting port and the second connecting port, so the gas precipitated from the rich amine liquid will enter the liquid level meter from the connection between the liquid level meter and the desulfurization tower, and part of the gas will return to the desulfurization tower again through the connection between the liquid level meter and the desulfurization tower, while the other part will gather at the top of the liquid level meter to form a gas seal section. By installing the exhaust valve at one end of the liquid level meter close to the first connecting port, it is convenient to discharge the gas gathered at the top of the liquid level meter from the liquid level meter, thereby achieving the purpose of avoiding gas collection. Therefore, through the setting of the exhaust valve, the liquid level meter for the desulfurization device provided by the utility model avoids the phenomenon of top gas collection, thereby making the measurement result more accurate and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0026] Figure 1 A schematic structural diagram of a liquid level meter for a desulfurization device provided in an embodiment of the utility model.

[0027] Marks and corresponding parts names in the attached drawings:

[0028] 1-first liquid level gauge, 2-second liquid level gauge, 3-third liquid level gauge, 4-first connecting port, 5-second connecting port, 6-exhaust valve, 7-operating component, 71-first pipeline, 72-second pipeline, 73-primary valve, 8-drain valve, 9-desulfurization tower. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0030] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] Example:

[0034] This embodiment provides a liquid level meter for a desulfurization device, which is used to solve the technical problem of gas collection at the top of the liquid level meter in the desulfurization device in the prior art. The liquid level meter for the desulfurization device includes a liquid level meter and an exhaust valve 6, wherein:

[0035] The liquid level gauge has a first connecting port 4 and a second connecting port 5, and is arranged along a first direction, which is the axial direction of the desulfurization tower 9, and the first connecting port 4 is located above the second connecting port 5. In the working state, the first connecting port 4 and the second connecting port 5 are both connected to the desulfurization tower 9 and arranged along the first direction, that is, the axial direction of the liquid level gauge is the axial direction of the desulfurization tower 9. The liquid level gauge is used to monitor the liquid level in the desulfurization tower 9. In this way, the setting of the liquid level gauge facilitates the monitoring of the liquid level in the desulfurization tower 9.

[0036] One end of the exhaust valve 6 is installed at one end of the liquid level gauge close to the first connecting port 4 and is connected to the liquid level gauge. The other end of the exhaust valve 6 is connected to the desulfurization tower 9. The exhaust valve 6 is used to discharge the gas in the liquid level gauge. In this way, through the setting of the exhaust valve 6 connected to the liquid level gauge and the desulfurization tower 9, when gas accumulation occurs at the top of the liquid level gauge, the gas at the top of the liquid level gauge can be discharged through the exhaust valve 6 to avoid gas accumulation affecting the measurement results.

[0037] Through the above structure, when using the liquid level meter for the desulfurization device provided by the utility model, the liquid level meter is first installed on the desulfurization tower 9, and the first connecting port 4 and the second connecting port 5 on the liquid level meter are connected to the desulfurization tower 9, and then the exhaust valve 6 is installed at one end of the desulfurization tower 9 close to the first connecting port 4. During use, the liquid level meter is connected to the desulfurization tower 9 through the first connecting port 4 and the second connecting port 5, so the gas precipitated from the rich amine liquid will enter the liquid level meter from the connection between the liquid level meter and the desulfurization tower 9, and a part of the gas will return to the desulfurization tower 9 through the connection between the liquid level meter and the desulfurization tower 9, while the other part will gather at the top of the liquid level meter to form a gas seal section. By installing the exhaust valve 6 at one end of the liquid level meter close to the first connecting port 4, it is convenient to discharge the gas gathered at the top of the liquid level meter from the liquid level meter, thereby achieving the purpose of avoiding gas collection. Therefore, through the setting of the exhaust valve 6, the liquid level meter for the desulfurization device provided by the utility model avoids the phenomenon of top gas collection, thereby making the measurement result more accurate and more practical.

[0038] An optional implementation of the present embodiment is as follows: there are multiple liquid level gauges, including a first liquid level gauge 1 and a second liquid level gauge 2, the first liquid level gauge 1 is located above the second liquid level gauge 2, and the first liquid level gauge 1 and the second liquid level gauge 2 are arranged along a first direction. In this way, by setting up multiple liquid level gauges, it is suitable for desulfurization towers 9 of different heights.

[0039] Optionally, a third liquid level gauge 3 is further included, which is located between the first liquid level gauge 1 and the second liquid level gauge 2, and the second connecting port 5 of the first liquid level gauge 1 overlaps with the projection of the first connecting port 4 of the third liquid level gauge 3 in the second direction, and the first connecting port 4 of the second liquid level gauge 2 overlaps with the projection of the second connecting port 5 of the third liquid level gauge 3 in the second direction, that is, the second connecting port 5 of the first liquid level gauge 1 and the first connecting port 4 of the third liquid level gauge 3 are located in the same plane, and the first connecting port 4 of the second liquid level gauge 2 and the second connecting port 5 of the third liquid level gauge 3 are located in the same plane. In this way, the unmeasured area between two adjacent liquid level gauges can be avoided through the overlapping parts between the liquid level gauges.

[0040] Optionally, there are multiple third liquid level gauges 3, and the multiple third liquid level gauges 3 are all arranged between the first liquid level gauge 1 and the second liquid level gauge 2, and the multiple third liquid level gauges 3 are arranged along the first direction, wherein the second connecting port 5 of any two adjacent third liquid level gauges 3 coincides with the projection of the first connecting port 4 of the other third liquid level gauge 3 in the second direction. In this way, by setting up multiple third liquid level gauges 3, desulfurization towers 9 of different heights can be adapted.

[0041] An optional implementation of the present embodiment is as follows: the exhaust valve 6 is connected to the liquid level meter via threads. Specifically, the top of the liquid level meter has an internal thread interface. In this way, the liquid level meter and the exhaust valve 6 are threadedly connected, which facilitates the disassembly and assembly of the exhaust valve 6, thereby facilitating the replacement or repair of the exhaust valve 6 and the liquid level meter.

[0042] Optionally, there are multiple exhaust valves 6, and the multiple exhaust valves 6 are arranged in a one-to-one correspondence with the multiple liquid level gauges. In this way, the collected gas at the top of each liquid level gauge can be easily discharged through the one-to-one corresponding exhaust valves 6 and liquid level gauges.

[0043] Optionally, multiple exhaust valves 6 are connected, that is, multiple exhaust valves 6 are connected by pipelines. In this way, it is convenient to discharge the gas discharged from each liquid level meter into the desulfurization tower 9 again to avoid polluting the environment. Optionally, the pipeline is a structural member made of stainless steel, which has good corrosion resistance and is easy to construct.

[0044] An optional implementation of this embodiment is as follows: it also includes an operating component 7, the number of the operating components 7 is multiple, and the multiple operating components 7 are arranged in a one-to-one correspondence with the multiple liquid level gauges. The operating component 7 includes a first pipeline 71, a second pipeline 72 and a primary valve 73, wherein:

[0045] The first pipeline 71 is used to connect the first connecting port 4 of the liquid level meter with the desulfurization tower 9 .

[0046] The second pipeline 72 is used to connect the second connecting port 5 of the liquid level meter with the desulfurization tower 9. Thus, through the arrangement of the first pipeline 71 and the second pipeline 72, a connecting vessel is formed between the liquid level meter and the desulfurization tower 9.

[0047] There are two primary valves 73, which are respectively installed on the first pipeline 71 and the second pipeline 72. The two primary valves 73 are respectively used to control the on-off of the first pipeline 71 and the second pipeline 72. In this way, through the setting of the primary valve 73, it is convenient to control the passage between the desulfurization tower 9 and the liquid level gauge. Therefore, when the liquid level gauge needs to be replaced, first disconnect the passage between the desulfurization tower 9 and the liquid level gauge through the primary valve 73, and then disassemble the liquid level gauge to avoid liquid overflow in the desulfurization tower 9.

[0048] Optionally, the primary valve 73 is a ball valve, which has good sealing performance, is easy to operate and maintain, has a long service life, and reduces maintenance requirements and costs.

[0049] Optionally, the primary valve 73 is a stop valve, which is durable, easy to manufacture, and convenient to maintain, and is suitable not only for medium and low pressures, but also for high pressures.

[0050] An optional implementation of the present embodiment is as follows: it also includes a drain valve 8, and the number of drain valves 8 is multiple, and the multiple drain valves 8 are respectively installed at the bottom ends of multiple liquid level gauges. In this way, through the setting of the drain valve 8, when the liquid level gauge needs to be replaced, the liquid in the liquid level gauge is first discharged through the drain valve 8 to prevent the liquid in the liquid level gauge from flowing out and polluting the environment.

[0051] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A liquid level meter for a desulfurization device, characterized in that: include: A liquid level meter having a first communication port (4) and a second communication port (5), and arranged along a first direction; in a working state, the first communication port (4) and the second communication port (5) are both arranged in communication with a desulfurization tower (9), and the liquid level meter is used to monitor the liquid level in the desulfurization tower (9); An exhaust valve (6) has one end mounted on one end of the liquid level gauge close to the first connecting port (4) and connected to the liquid level gauge, and the other end of the exhaust valve (6) is connected to the desulfurization tower (9). The exhaust valve (6) is used to discharge the gas in the liquid level gauge.

2. A liquid level meter for a desulfurization device according to claim 1, characterized in that: The number of the liquid level gauges is multiple, including a first liquid level gauge (1) and a second liquid level gauge (2), the first liquid level gauge (1) is located above the second liquid level gauge (2), and the first liquid level gauge (1) and the second liquid level gauge (2) are arranged along a first direction.

3. A liquid level meter for a desulfurization device according to claim 2, characterized in that: It also includes a third liquid level gauge (3), which is located between the first liquid level gauge (1) and the second liquid level gauge (2), and the second connecting port (5) of the first liquid level gauge (1) overlaps with the projection of the first connecting port (4) of the third liquid level gauge (3) in the second direction, and the first connecting port (4) of the second liquid level gauge (2) overlaps with the projection of the second connecting port (5) of the third liquid level gauge (3) in the second direction, and the first direction and the second direction are arranged perpendicular to each other.

4. A liquid level meter for a desulfurization device according to claim 3, characterized in that: There are multiple third liquid level gauges (3), and the multiple third liquid level gauges (3) are all arranged between the first liquid level gauge (1) and the second liquid level gauge (2), and the multiple third liquid level gauges (3) are arranged along the first direction, wherein the second connecting port (5) of any one of the two adjacent third liquid level gauges (3) coincides with the projection of the first connecting port (4) of the other third liquid level gauge (3) in the second direction.

5. A liquid level meter for a desulfurization device according to claim 2, characterized in that: The exhaust valve (6) is connected to the liquid level meter via threads.

6. A liquid level meter for a desulfurization device according to claim 5, characterized in that: The number of the exhaust valves (6) is plural, and the plural exhaust valves (6) are arranged in a one-to-one correspondence with the plural liquid level gauges.

7. A liquid level meter for a desulfurization device according to claim 6, characterized in that: The plurality of exhaust valves (6) are all connected and arranged.

8. The liquid level meter for a desulfurization device according to claim 1, characterized in that: It also includes an operating component (7), the number of the operating components (7) is multiple, and the multiple operating components (7) are arranged in a one-to-one correspondence with the multiple liquid level meters, and the operating component (7) includes: A first pipeline (71) for connecting the first connecting port (4) of the liquid level meter with the desulfurization tower (9); A second pipeline (72) for connecting the second connecting port (5) of the liquid level meter with the desulfurization tower (9); There are two primary valves (73), which are respectively installed on the first pipeline (71) and the second pipeline (72). The two primary valves (73) are respectively used to control the opening and closing of the first pipeline (71) and the second pipeline (72).

9. A liquid level meter for a desulfurization device according to claim 8, characterized in that: The primary valve (73) is a ball valve.

10. A liquid level meter for a desulfurization device according to any one of claims 1 to 9, characterized in that: It also includes a plurality of drain valves (8), and the plurality of drain valves (8) are respectively installed at the bottom ends of the plurality of liquid level meters.

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