Dual-mode liquid level monitoring structure and container

Abstract

The utility model provides a dual-mode liquid level monitoring structure and a container, and relates to the technical field of liquid level detection. The dual-mode liquid level monitoring structure comprises an upper multi-interface pipeline, a lower multi-interface pipeline and a lower multi-interface pipeline, wherein the upper multi-interface pipeline is provided with upper connectors, upper vertical interfaces and upper transverse interfaces; the lower multi-interface pipeline is provided with a lower connecting port, a lower vertical interface and a lower transverse interface; the guided wave radar liquid level meter is mounted on the upper vertical interface; a double-flange differential pressure type liquid level meter is provided with a low-pressure side diaphragm capsule and a high-pressure side diaphragm capsule which are used in cooperation. The low-pressure side diaphragm capsule is connected with the upper transverse interface; the high-pressure side diaphragm capsule is connected with the lower vertical interface; the upper connector and the lower connector are used for connecting a container, and the lower transverse connector is connected with a blow-off pipe. The container comprises the structure. A dual-mode liquid level monitoring scheme is adopted, the advantages of a guided wave radar liquid level meter and a dual-flange differential pressure type liquid level meter are combined, and the accuracy of liquid level measurement is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level detection, in particular to a dual-mode liquid level monitoring structure and a container. Background Art

[0002] In industrial process control, accurate liquid level measurement is essential to ensure production efficiency and safety. Traditionally, many industrial containers, such as ultra-low temperature evaporators, use guided wave radar level gauges for liquid level monitoring. However, in certain specific environments, such as high oil content in dichloromethane liquids, the oil may accumulate on the measuring rod of the radar level gauge, affecting the measurement accuracy. Utility Model Content

[0003] In view of the above situation, the utility model provides a dual-mode liquid level monitoring structure and container, aiming to solve the technical problem that in existing industrial containers such as ultra-low temperature evaporators, when using guided wave radar level meters for liquid level monitoring, in certain specific environments, such as high oil content of dichloromethane liquid, the oil accumulation on the measuring rod of the radar level meter may affect the measurement accuracy.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] In a first aspect, the utility model provides a dual-mode liquid level monitoring structure, comprising:

[0006] An upper multi-interface pipeline has an upper connection port, an upper vertical interface and an upper horizontal interface;

[0007] A lower multi-interface pipeline having a lower connecting port, a lower vertical interface and a lower horizontal interface;

[0008] Guided wave radar level gauge, installed on the upper vertical interface;

[0009] The double flange differential pressure level gauge has a low-pressure side diaphragm box and a high-pressure side diaphragm box for use together; the low-pressure side diaphragm box is connected to the upper horizontal interface; the high-pressure side diaphragm box is connected to the lower vertical interface;

[0010] in:

[0011] The upper connection port and the lower connection port are used to connect to the container, and the lower transverse interface is connected to a sewage pipe;

[0012] The upper vertical interface and the lower vertical interface refer to vertical or substantially vertical interfaces; the upper horizontal interface and the lower horizontal interface refer to horizontal or substantially horizontal interfaces.

[0013] In some embodiments of the present invention, the upper multi-interface pipeline is a three-way pipe.

[0014] In some embodiments of the present invention, the pipe size of the upper connecting port, the upper vertical interface and / or the upper horizontal interface is DN50.

[0015] In some embodiments of the present invention, the lower multi-interface pipe is a three-way pipe.

[0016] In some embodiments of the present invention, the pipe size of the lower connecting port, the lower vertical interface and / or the lower horizontal interface is DN50.

[0017] In a second aspect, the utility model provides a container, comprising:

[0018] The container body has an original liquid level measurement interface at the top and a sewage outlet at the bottom;

[0019] The aforementioned dual-mode liquid level monitoring structure;

[0020] Among them, the upper connection port is connected to the original liquid level measurement interface, and the lower connection port is connected to the sewage outlet.

[0021] In some embodiments of the present invention, the upper connecting port is connected to the original liquid level measurement interface through a flange.

[0022] In some embodiments of the present invention, the lower connecting port is connected to the sewage outlet through a flange.

[0023] In some embodiments of the present invention, a shut-off valve is provided on the sewage outlet.

[0024] In some embodiments of the present invention, the container body is an ultra-low temperature evaporator.

[0025] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0026] 1. Improved measurement accuracy: This embodiment adopts a dual-mode liquid level monitoring solution, which significantly improves the accuracy of liquid level measurement by combining the advantages of the guided wave radar level meter and the double flange differential pressure level meter. Specifically, based on the different detection principles of the guided wave radar level meter and the double flange differential pressure level meter, the guided wave radar level meter provides accurate readings in an environment without oil accumulation, while the double flange differential pressure level meter can maintain detection stability in an environment with oil accumulation, thereby ensuring that liquid level monitoring can maintain high accuracy under various conditions.

[0027] 2. Improved reliability of the system to which the container belongs: In industrial containers, especially key equipment such as ultra-low temperature evaporators, accurate liquid level monitoring is essential to maintain stable system operation. This embodiment adopts a dual-mode liquid level monitoring solution to reduce the risks caused by distortion of liquid level detection, such as system shutdown or safety accidents, thereby improving the overall system reliability and safety. In other words, the above dual-mode design provides a redundant measurement method to prevent any monitoring device from failing. In addition, the above two detection methods can verify the measurement results with each other, thereby enhancing the reliability and effectiveness of the liquid level data.

[0028] 3. Save maintenance costs and time: Traditional single-mode liquid level monitoring solutions (guided wave radar level gauges) often require frequent maintenance and adjustment in complex industrial environments. This embodiment has the ability to perform online maintenance (maintaining one of the liquid level detections while the other can still work normally), avoiding the time of waiting for system downtime, thereby significantly saving maintenance costs and time and ensuring the long-term safe and stable operation of the production system.

[0029] 4. Convenient operation: Based on the unique distribution positions of the upper vertical interface 22, the upper horizontal interface 23, the lower vertical interface 32 and the lower horizontal interface 33, the layout of the guided wave radar level gauge 4 and the double flange differential pressure level gauge 5 is more reasonable, which is convenient for installation and maintenance.

[0030] 5. Based on the versatility and reliability of the dual-mode liquid level monitoring structure design, the dual-mode liquid level monitoring structure can be widely used in a variety of industrial environments, especially those where the liquid composition is complex or easy to deposit, such as chemical industry, petroleum processing and other industries.

[0031] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 Schematic diagram of the structure of the container and the dual-mode liquid level monitoring structure.

[0034] icon:

[0035] 1-Container body, 11-Original liquid level measurement interface, 12-Drain port, 13-Shut-off valve,

[0036] 2-upper multi-interface pipe, 21-upper connection port, 22-upper vertical interface, 23-upper horizontal interface,

[0037] 3-lower multi-interface pipe, 31-lower connection port, 32-lower vertical interface, 33-lower horizontal interface,

[0038] 4- Guided wave radar level gauge,

[0039] 5-Double flange differential pressure level gauge, 51-Low pressure side diaphragm box, 52-High pressure side diaphragm box. DETAILED DESCRIPTION

[0040] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention.

[0041] In the description of the embodiments of the present invention, it should be understood that the terms "vertical", "lateral", "upper", "lower", "vertical", "horizontal", "top", "inside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description. They 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 should not be understood as a limitation on the embodiments of the present invention.

[0042] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0043] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0044] First, see Figure 1 This embodiment provides a container, including a container body 1; the container body 1 is, for example, an ultra-low temperature evaporator, the top of the container body 1 has an original liquid level measurement interface 11 for installing a guided wave radar level meter 4, the lower part of the container body 1 has a drain outlet 12, and a shut-off valve 13 is arranged on the drain outlet 12.

[0045] Second, see Figure 1 This embodiment provides a dual-mode liquid level monitoring structure, which is applied to the above-mentioned container to realize liquid level detection in the container body 1.

[0046] The dual-mode liquid level monitoring structure comprises an upper multi-interface pipeline 2, a lower multi-interface pipeline 3, a guided wave radar liquid level gauge 4 and a double-flange differential pressure liquid level gauge 5.

[0047] The upper multi-port pipe 2 has an unlimited number of upper connection ports 21, upper vertical ports 22 and upper horizontal ports 23. The upper connection port 21 is used to connect with the original liquid level measurement port 11, specifically, the upper connection port 21 is connected with the original liquid level measurement port 11 through a flange.

[0048] In a specific implementation scenario, the upper multi-interface pipe 2 is a three-way pipe, and the pipe size of the upper connecting port 21, the upper vertical port 22 and / or the upper horizontal port 23 is DN50.

[0049] It should be noted that the upper vertical interface 22 refers to a vertical or substantially vertical interface; the upper horizontal interface 23 refers to a horizontal or substantially horizontal interface.

[0050] The lower multi-interface pipeline 3 has an unlimited number of lower connection ports 31, lower vertical ports 32 and lower transverse ports 33. The lower connection port 31 is used to connect to the sewage outlet 12. Specifically, the lower connection port 31 is connected to the sewage outlet 12 through a flange. The lower transverse port 33 is connected to a sewage pipe, and a sewage valve is provided on the sewage pipe.

[0051] In a specific implementation scenario, the lower multi-interface pipeline 3 is a three-way pipe, and the pipe size of the lower connecting port 31, the lower vertical interface 32 and / or the lower horizontal interface 33 is DN50.

[0052] It should be noted that the lower vertical interface 32 refers to a vertical or substantially vertical interface; the lower transverse interface 33 refers to a horizontal or substantially horizontal interface.

[0053] The guided wave radar level gauge 4 is mounted on the upper vertical interface 22 via a flange.

[0054] The double flange differential pressure level gauge 5 has a low pressure side diaphragm box 51 and a high pressure side diaphragm box 52 used together; the low pressure side diaphragm box 51 is connected to the upper horizontal interface 23 through a flange; the high pressure side diaphragm box 52 is connected to the lower vertical interface 32 through a flange. The double flange differential pressure level gauge 5 is installed at a designated location on site.

[0055] In combination with the above content, this embodiment has at least the following beneficial effects:

[0056] 1. Improved measurement accuracy: This embodiment adopts a dual-mode liquid level monitoring solution, which significantly improves the accuracy of liquid level measurement by combining the advantages of the guided wave radar level meter 4 and the double flange differential pressure level meter 5; specifically, based on the different detection principles of the guided wave radar level meter 4 and the double flange differential pressure level meter 5, the guided wave radar level meter 4 provides accurate readings in an environment without oil accumulation, while the double flange differential pressure level meter 5 can maintain detection stability in an environment with oil accumulation, thereby ensuring that liquid level monitoring can maintain high accuracy under various conditions.

[0057] 2. Improved reliability of the system to which the container belongs: In industrial containers, especially key equipment such as ultra-low temperature evaporators, accurate liquid level monitoring is essential to maintain stable system operation. This embodiment adopts a dual-mode liquid level monitoring solution to reduce the risks caused by distortion of liquid level detection, such as system shutdown or safety accidents, thereby improving the overall system reliability and safety. In other words, the above dual-mode design provides a redundant measurement method to prevent any monitoring device from failing. In addition, the above two detection methods can verify the measurement results with each other, thereby enhancing the reliability and effectiveness of the liquid level data.

[0058] 3. Save maintenance costs and time: Traditional single-mode liquid level monitoring solutions (guided wave radar level gauge 4) often require frequent maintenance and adjustment in complex industrial environments. This embodiment has the ability of online maintenance (maintaining one of the liquid level detections while the other can still work normally), avoiding the time of waiting for system downtime, thereby significantly saving maintenance costs and time, and ensuring the long-term safe and stable operation of the production system.

[0059] 4. The container body 1 has good sealing performance: In this embodiment, the dual-mode liquid level monitoring structure can be installed by using the original holes of the existing container body, avoiding the need for additional holes, and the container body 1 has good sealing performance.

[0060] V. Convenient operation: On the one hand, based on the unique distribution positions of the upper vertical interface 22, the upper horizontal interface 23, the lower vertical interface 32 and the lower horizontal interface 33, the layout of the guided wave radar level gauge 4 and the double flange differential pressure level gauge 5 is more reasonable, which is convenient for installation and maintenance. Specifically, the vertical arrangement of the upper vertical interface 22 and the lower vertical interface 32 enables the guided wave radar level gauge 4 and the high-pressure side diaphragm box 52 to be installed vertically, reducing the space occupation and complexity during installation; and the horizontal arrangement of the upper horizontal interface 23 and the lower horizontal interface 33 makes the connection between the low-pressure side diaphragm box 51 and the sewage pipe (usually arranged horizontally) more convenient, which is convenient for operators to perform daily inspection and maintenance.

[0061] On the other hand, the dual-mode liquid level monitoring structure adopts flange installation, which allows quick replacement or adjustment of the guided wave radar level meter 4 and the dual-flange differential pressure level meter 5. This allows operators to perform daily maintenance and troubleshooting more conveniently, thereby improving work efficiency. In particular, in actual production, a single liquid level measurement method cannot be inspected and maintained without releasing the liquid level interlock. If the interlock is released for maintenance, the liquid level control is out of control; the dual-mode liquid level monitoring structure provides a redundant design, so that when one of the liquid level meters is repaired, the other liquid level meter can still work normally, ensuring that the liquid level control is not out of control, and ensuring the continuity and safety of production.

[0062] 6. Based on the versatility and reliability of the dual-mode liquid level monitoring structure design, the dual-mode liquid level monitoring structure can be widely used in a variety of industrial environments, especially those where the liquid composition is complex or easy to deposit, such as chemical industry, petroleum processing and other industries.

[0063] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. In the absence of conflicts, the embodiments of the present application and the features in the embodiments may be combined with each other at will. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dual-mode liquid level monitoring structure, characterized in that: include: An upper multi-interface pipeline has an upper connection port, an upper vertical interface and an upper horizontal interface; A lower multi-interface pipeline having a lower connecting port, a lower vertical interface and a lower horizontal interface; A guided wave radar level gauge is installed on the upper vertical interface; A double-flange differential pressure level gauge comprises a low-pressure side diaphragm box and a high-pressure side diaphragm box for use together; the low-pressure side diaphragm box is connected to the upper horizontal interface; the high-pressure side diaphragm box is connected to the lower vertical interface; in: The upper connection port and the lower connection port are used to connect to a container, and the lower transverse interface is connected to a sewage pipe; The upper vertical interface and the lower vertical interface refer to vertical or substantially vertical interfaces; the upper transverse interface and the lower transverse interface refer to horizontal or substantially horizontal interfaces.

2. The dual-mode liquid level monitoring structure according to claim 1, characterized in that: The upper multi-interface pipeline is a three-way pipe.

3. The dual-mode liquid level monitoring structure according to claim 1, characterized in that: The pipe size of the upper connecting port, the upper vertical interface and / or the upper horizontal interface is DN50.

4. The dual-mode liquid level monitoring structure according to claim 1, characterized in that: The lower multi-interface pipeline is a three-way pipe.

5. The dual-mode liquid level monitoring structure according to claim 1, characterized in that: The pipe size of the lower connecting port, the lower vertical interface and / or the lower horizontal interface is DN50.

6. A container, characterized in that: include: The container body has an original liquid level measurement interface at the top and a sewage outlet at the bottom; The dual-mode liquid level monitoring structure according to any one of claims 1 to 5; Wherein, the upper connection port is connected to the original liquid level measurement interface, and the lower connection port is connected to the sewage outlet.

7. The container according to claim 6, characterized in that The upper connecting port is connected to the original liquid level measurement interface through a flange.

8. The container according to claim 6, characterized in that The lower connecting port is connected to the sewage outlet through a flange.

9. The container according to claim 6, characterized in that The sewage outlet is provided with a cut-off valve.

10. The container according to any one of claims 6 to 9, characterized in that: The container body is an ultra-low temperature evaporator.

Images