Non-throw-in type static pressure liquid level meter
By adopting a non-input static pressure level meter in the float level meter, and using the static pressure principle and split structure, the reliability and maintenance problems of the float level meter when measuring in high-temperature solvents are solved, and the accurate measurement and high-reliability operation of the liquid high-temperature stearic acid solvent level are achieved.
Patent Information
- Application Number
- CN202421666340.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-15
AI Technical Summary
When measuring liquid high-temperature stearic acid solvents, the measuring rod is inserted directly into the solvent, resulting in a decrease in the life of the component. When the float moves, it is easy to accumulate scum and bonds, resulting in liquid level misalignment, and the sealing and installation of the liquid level transmitter makes it difficult to detect and deal with faults.
The non-input static pressure level meter is adopted to measure the liquid level by combining an open normal pressure container with a static pressure level transmitter, a static pressure transfer conduit, a gas collecting cylinder and a magnetic flip level meter. The liquid level is measured using the static pressure principle to avoid direct contact with high-temperature solvents, and to improve reliability and durability through the split structure and high-temperature tetrafluoro material.
Accurate measurement of liquid high-temperature stearic acid solvent liquid level is achieved, avoiding the impact of high temperature on the measurement sensor, improving the reliability and life of the device, and simplifying the maintenance and maintenance process.
Smart Images
Figure CN222978903U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrostatic level devices in the production and processing of graphite electrodes, and particularly relates to a non-invasive hydrostatic level gauge. Background Art
[0002] Liquid stearic acid is an important antioxidant raw material in the carbon electrode industry. Since graphite electrodes are prone to oxidation at high temperatures, the material properties will decline. In order to improve the high-temperature performance of graphite electrodes, high-temperature antioxidants need to be added. This kind of antioxidant generally uses high-temperature liquid stearic acid. During the kneading and molding process of graphite electrodes, high-temperature liquid stearic acid solvent needs to be added. The liquid level measurement of the stearic acid solvent is very important for production control.
[0003] The installation of a conventional float level gauge for measuring liquid high-temperature stearic acid solvent is as Figure 1 shown. The measuring rod 3 and the float 2 of the level transmitter 4 are directly inserted into the stearic acid solvent in the measured tank. A reed switch assembly sensitive to magnetism is installed in the measuring rod. When the float slides up and down with the liquid level, the magnetic field of the magnet fixed in the float acts on the reed switch at the nearest position in the measuring rod, causing the normally open contact in the reed switch to close, while the reed switches at other positions remain open. This signal is converted, transmitted, and displayed by the level transmitter, and the current solvent liquid level is accurately indicated.
[0004] This liquid high-temperature stearic acid measuring device of the conventional float level gauge has the following deficiencies: 1. The measuring rod is directly inserted into the liquid high-temperature solvent, and the high temperature will affect and reduce the service life and reliability of the reed switch element in the measuring rod, resulting in a high failure rate. 2. The stearic acid solvent has a large oil content, and the solvent is an emulsifier with a certain adhesiveness. During the measurement process, the float moves up and down on the measuring rod through the middle through hole all the time. The floating scum and adhesives on the solvent surface are easy to accumulate between the float and the measuring rod. When it reaches a certain degree, it will hinder the normal movement of the float, causing a liquid level misalignment failure. 3. Since the level transmitter is installed in a sealed manner, it is not easy to detect a fault in advance, and the disposal after a fault occurs is also more troublesome. Content of the Utility Model
[0005] The purpose of the utility model is to provide a non-invasive hydrostatic level gauge to solve the above problems.
[0006] To achieve the above purpose, the following technical solutions are provided:
[0007] A non-invasive static pressure liquid level gauge, which is used in conjunction with an open atmospheric pressure container. There is a solvent in the open atmospheric pressure container, and it includes: a fixed installation pipe, a static pressure liquid level transmitter, a static pressure transmission conduit, a gas collecting cylinder, and a magnetic flap liquid level gauge. The fixed installation pipe is arranged at the top of the open atmospheric pressure container. The static pressure liquid level transmitter is arranged on the fixed installation pipe. The output end of the static pressure liquid level transmitter is conductively and hermetically connected to one end of the static pressure transmission conduit. The other end of the static pressure transmission conduit extends into the solvent and is conductively and hermetically connected to the gas collecting cylinder. The gas collecting cylinder is located at the bottom of the open atmospheric pressure container. The magnetic flap liquid level gauge is arranged on one side of the open atmospheric pressure container and is conductively arranged therewith.
[0008] Preferably, the upper and lower ends of the magnetic flap liquid level gauge are respectively conductively connected to the open atmospheric pressure container, and the upper end thereof conductively connected to the open atmospheric pressure container is located at the maximum volume scale of the open atmospheric pressure container.
[0009] Preferably, the output end of the static pressure liquid level transmitter is located outside the open atmospheric pressure container.
[0010] Preferably, the static pressure liquid level transmitter is fixedly connected to the fixed installation pipe by thread.
[0011] Preferably, the gas collecting cylinder is made of a soft material and deforms under pressure.
[0012] Preferably, a relief valve is further provided at the bottom end of the magnetic flap liquid level gauge.
[0013] The beneficial effects of the present utility model are as follows:
[0014] 1. The present utility model adopts a split structure. The liquid level sensor output end of the static pressure liquid level transmitter is not directly put into the high-temperature stearic acid solvent. The static pressure transmission conduit and the gas collecting cylinder at the bottom are made of high-temperature PTFE material, which is acid and alkali resistant and high-temperature resistant.
[0015] 2. The liquid level sensor output end of the static pressure liquid level transmitter is externally installed. The static pressure is transmitted by gas to transmit the pressure value. The static pressure transmission is stable and reliable, avoiding the influence of liquid high-temperature stearic acid on the measurement sensor and internal components, and further increasing the reliability and service life of the device.
[0016] 3. The present utility model measures the liquid level by the static pressure principle. The liquid level static pressure value is effectively transmitted through the gas inside the gas collecting pipe to achieve the proportional relationship between the static pressure value and the liquid level, that is, P = ρgh, so as to accurately measure the liquid level. This design has the characteristics of simplicity and practicality and is suitable for the liquid level measurement of open atmospheric pressure containers.
[0017] 4. The liquid level sensor output end of the static pressure liquid level transmitter, the flexible static pressure transmission conduit and the gas collecting cylinder at the bottom adopt a split design and are connected by thread. The installation is simple, does not occupy space, does not damage the existing tank body, and the maintenance is simple and convenient, prolonging the service life.
[0018] 5. When the inside of the air collecting cylinder is severely blocked, thus affecting the pressure conduction, just take out the air guiding component for cleaning and dredging, and then the measurement can be continued. The workload of overhaul and maintenance is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic structural diagram of the background art of the present utility model;
[0020] Figure 2 is a schematic structural diagram of the present utility model;
[0021] The reference numerals shown in the drawings are: 1 - asphalt liquid level of the measured tank body, 2 - floating ball, 3 - measuring rod, 4 - liquid level transmitter, 5 - mounting flange, 6 - open-type atmospheric pressure container, 7 - fixed installation pipe, 8 - static pressure type liquid level transmitter, 9 - static pressure conduction pipe, 10 - air collecting cylinder, 11 - magnetic flap level gauge, 12 - solvent, 13 - relief valve. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The following further elaborates on this design solution with reference to the drawings.
[0023] As Figure 2 shown, a non-immersion type static pressure liquid level gauge is used in cooperation with an open-type atmospheric pressure container 6. The open-type atmospheric pressure container 6 is internally provided with a high-temperature liquid stearic acid solvent 12, and includes: a fixed installation pipe 7, a static pressure type liquid level transmitter 8, a static pressure conduction pipe 9, an air collecting cylinder 10, and a magnetic flap level gauge 11. The fixed installation pipe 7 is arranged at the top of the open-type atmospheric pressure container 6. The static pressure type liquid level transmitter 8 is arranged on the fixed installation pipe 7. The output end of the static pressure type liquid level transmitter 8 is conductively and hermetically connected to one end of the static pressure conduction pipe 9. The other end of the static pressure conduction pipe 9 extends into the solvent 12 and is conductively and hermetically connected to the air collecting cylinder 10. The air collecting cylinder 10 is located at the bottom of the open-type atmospheric pressure container 6. The upper and lower ends of the magnetic flap level gauge 11 are arranged on one side of the open-type atmospheric pressure container 6, and the upper and lower ends of the magnetic flap level gauge 11 are respectively conductively arranged with the open-type atmospheric pressure container 6.
[0024] In some embodiments, the upper and lower ends of the magnetic flap level gauge 11 are respectively conductively connected to the open-type atmospheric pressure container 6. The upper end thereof conductively connected to the open-type atmospheric pressure container 6 is located at the maximum volume scale of the open-type atmospheric pressure container 6, and the maximum capacity value of the open-type atmospheric pressure container 6 can be measured.
[0025] In some embodiments, the output end of the static pressure type liquid level transmitter 8 is located outside the open-type atmospheric pressure container 6 and does not directly contact the solvent 12 to prevent damage to the internal components.
[0026] In some embodiments, the static pressure type liquid level transmitter 8 is fixedly connected to the fixed installation pipe 7 by a threaded connection, which is convenient for later maintenance and disassembly operations.
[0027] In some embodiments, the static pressure level transmitter 8 is threadedly connected to the static pressure transmission conduit 9 and the gas collecting cylinder 10 in sequence. The static pressure transmission conduit 9 and the gas collecting cylinder 10 are both made of soft materials. The static pressure transmission conduit 9 and the gas collecting cylinder 10 at the bottom are made of high-temperature polytetrafluoroethylene material.
[0028] In some embodiments, a relief valve 13 is also provided at the bottom of the magnetic flap level gauge 11 to release impurities and prevent blockage.
[0029] Example
[0030] This measuring device is suitable for the liquid level measurement of an open normal pressure container 6. The liquid level sensor output end of the static pressure level transmitter 8 and the static pressure transmission conduit 9 are detachably installed. The bottom of the static pressure transmission conduit 9 is connected to the gas collecting cylinder 10. The static pressure level transmitter 8 is installed on the outer top of the open normal pressure container 6. When the liquid level of the stearic acid solvent 12 moves up and down, it is transmitted, output and displayed in real time through the static pressure level transmitter 8 (as shown in the table below), thereby realizing the separate measurement of the liquid high-temperature asphalt level.
[0031] Calibration record of static pressure level transmitter
[0032]
Claims
1. A non-submersible static pressure level gauge, used in conjunction with an open atmospheric pressure container, wherein a solvent is provided in the open atmospheric pressure container, characterized in that: include: A fixed mounting pipe, a static pressure level transmitter, a static pressure transfer conduit, a gas collecting cylinder and a magnetic flap level gauge, wherein the fixed mounting pipe is arranged on the top of an open atmospheric pressure container, the static pressure level transmitter is arranged on the fixed mounting pipe, the output end of the static pressure level transmitter is conductively and sealedly connected to one end of the static pressure transfer conduit, the other end of the static pressure transfer conduit extends into the interior of the solvent and is conductively and sealedly connected to the gas collecting cylinder, the gas collecting cylinder is located at the bottom of the open atmospheric pressure container, and the magnetic flap level gauge is arranged on one side of the open atmospheric pressure container and is conductively connected to the container.
2. A non-immersion static pressure level gauge according to claim 1, characterized in that: The upper and lower ends of the magnetic flap level gauge are respectively connected to the open atmospheric pressure container, and the upper end connected to the open atmospheric pressure container is located at the maximum volume scale of the open atmospheric pressure container.
3. A non-immersion static pressure level gauge according to claim 1, characterized in that: The output end of the static pressure liquid level transmitter is located outside the open normal pressure container.
4. A non-immersion static pressure level gauge according to claim 1, characterized in that: The static pressure type liquid level transmitter is threadedly connected and fixed to the fixed installation pipe.
5. The non-immersible static pressure level gauge according to claim 1, characterized in that: The gas collecting cylinder is made of soft material and deforms when subjected to pressure.
6. A non-immersion static pressure level gauge according to claim 2, characterized in that: A relief valve is also provided at the bottom end of the magnetic flap level gauge.