Visual oil level gauge with exhaust device for oil conservator

By setting up an exhaust mechanism and protective structure on the oil level meter pipeline, the problem of poor flow caused by negative pressure and bubbles of traditional oil level meter is solved, and the accurate reading of the oil level meter and equipment safety is improved.

CN223204980UActive Publication Date: 2025-08-08ZHENJIANG DAQO POWER TRANSFORMER CO LTD
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Patent Information

Application Number
CN202422531643.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-08-08
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

Traditional glass tube oil level meters are prone to the problem of oil not flowing, especially under the influence of negative pressure, bubbles and viscosity, which leads to poor oil flow, affecting the accuracy of readings and equipment safety.

Method used

An exhaust mechanism is set up on the oil level meter pipeline, and negative pressure is released through the exhaust mechanism to ensure oil flowability. An oil-proof layer and outer wall sleeve are set up to protect the scale lines. A flange connection structure and sensors and alarm systems are used to improve reliability.

Benefits of technology

It effectively solves the fluid flow obstacles caused by negative pressure, ensures the accuracy of oil level meter readings and equipment safety, reduces the risks caused by misreading and mechanical damage, and improves the accuracy of oil level monitoring and the overall safety of equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oil conservators, in particular to an oil conservator visible oil level indicator with an exhaust device. The oil level gauge is arranged at one end of the oil conservator body; the long visible oil level gauge comprises a pipeline, an exhaust mechanism is arranged at the top end of the pipeline, the exhaust mechanism is configured to release negative pressure in the pipeline when the exhaust mechanism is started, and the pipeline is further provided with scale marks used for visual reading; wherein the long visible oil level gauge is provided with a plurality of connecting ports for connecting the pipelines and the oil conservator body, the top of the long visible oil level gauge is provided with an inlet connecting port for enabling oil to flow in from the oil conservator, and the bottom of the long visible oil level gauge is provided with an outlet connecting port for enabling the oil to flow out from the pipelines. The exhaust mechanism is additionally arranged on the oil level gauge pipeline, so that the problem of negative pressure possibly occurring in the working process of a traditional oil level gauge is effectively solved, and it is ensured that the oil level gauge can reflect the real oil liquid height in time.
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Description

Technical Field

[0001] The utility model relates to the technical field of oil storage cabinets, in particular to a visual oil level gauge of an oil storage cabinet with a self-exhaust device. Background Art

[0002] Oil-immersed transformers often feature a glass-tube visual oil level gauge installed on the oil conservator. This gauge connects to the oil inside the conservator via the upper and lower connections of the glass tube. As the oil level inside the conservator changes, the oil level in the glass tube also rises and falls, reflecting the actual level of the oil in the conservator. Due to its simple structure, easy operation, and low cost, glass-tube oil level gauges are widely used in oil storage equipment in industries such as petroleum, chemical engineering, and metallurgy.

[0003] However, these oil level gauges present significant practical challenges, particularly with regard to oil flow. Glass tube oil level gauges are prone to oil blockage, typically due to negative pressure within the pipes, which prevents the oil from flowing properly. If the oil in the conservator is flowing out too quickly without timely ventilation, a vacuum can form within the pipes, hindering the smooth flow of the oil. Furthermore, air bubbles in the oil and variations in its viscosity can also create air blockages within the pipes, affecting both oil flow and the accuracy of the readings.

[0004] Therefore, an improved visual oil level gauge design is urgently needed to solve the defect of traditional glass tube oil level gauge in terms of poor oil circulation, thereby improving the accuracy and reliability of oil level display. Utility Model Content

[0005] In view of at least one of the above technical problems, the utility model provides a visual oil level gauge for an oil conservator with a built-in exhaust device. The negative pressure in the oil level gauge is discharged through the setting of the exhaust system, thereby improving the oil flowability of the visual oil level gauge for the oil conservator.

[0006] According to a first aspect of the present invention, there is provided a visual oil level gauge for an oil storage tank with a self-contained exhaust device, comprising:

[0007] Oil conservator body;

[0008] An oil level gauge, disposed at one end of the oil conservator body;

[0009] An elongated visual oil level gauge comprises a pipe, a top end of which is provided with an exhaust mechanism, the exhaust mechanism being configured to release negative pressure in the pipe when the exhaust mechanism is turned on, and the pipe also having scale lines for visual reading;

[0010] The long visual oil level gauge is provided with a plurality of connection ports for connecting the pipeline and the oil storage tank body. The top of the long visual oil level gauge has an inlet connection port for allowing oil to flow into the oil storage tank, and the bottom of the long visual oil level gauge has an outlet connection port for allowing oil to flow out of the pipeline.

[0011] In some embodiments of the present invention, the pipe is made of corrosion-resistant tempered glass.

[0012] In some embodiments of the present invention, an oil-proof layer is provided on the inner wall of the pipeline, and the oil-proof layer is configured to effectively isolate the inner wall of the pipeline from the oil.

[0013] In some embodiments of the present invention, a protective sleeve is provided on the outer wall of the pipe, and the protective sleeve is configured to expose the scale line.

[0014] In some embodiments of the present invention, an auxiliary line is provided on the protective sleeve, and the auxiliary line is configured to correspond to the numerical value on the scale line.

[0015] In some embodiments of the present invention, the connection port is connected to the oil storage cabinet body using a flange connection structure, and the fasteners at the connection are made of corrosion-resistant material.

[0016] In some embodiments of the present invention, the exhaust mechanism includes:

[0017] A joint is provided at the top end of the pipeline;

[0018] an exhaust valve connected to the other end of the connector;

[0019] After the exhaust valve is opened, the negative pressure in the pipeline is exhausted.

[0020] In some embodiments of the present invention, the exhaust mechanism further includes a filter, which is disposed in the joint and is configured to be detachable.

[0021] In some embodiments of the present invention, the elongated visual oil level gauge is provided with a sensor configured to monitor the height of the oil.

[0022] In some embodiments of the present invention, the long visual oil level gauge is further provided with an alarm system, which receives a signal from the sensor and issues an alarm.

[0023] The beneficial effects of the present invention are as follows: the present invention effectively solves the problem of negative pressure that may occur during the operation of traditional oil level gauges by adding an exhaust mechanism to the oil level gauge pipeline. The provision of the exhaust mechanism allows the negative pressure in the pipeline to be directly discharged, thereby improving the oil flow of the visual oil level gauge of the oil storage cabinet, avoiding fluid flow obstructions caused by negative pressure, and ensuring that the oil level gauge can promptly reflect the actual oil height. In addition, the design of the exhaust mechanism also enhances the accuracy and reliability of the oil level gauge. In the event of oil fluctuations or temperature changes, the exhaust mechanism can automatically adjust the air pressure in the pipeline to ensure that the reading of the oil level gauge is stable and not affected by external environmental factors. This not only improves the accuracy of oil level monitoring, but also reduces the operational risks caused by misreading, and ensures the safety of the oil storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a front view of a visual oil level gauge for an oil storage cabinet with a self-exhaust device according to an embodiment of the present utility model;

[0026] Figure 2 In the embodiment of the present utility model Figure 1 Right view;

[0027] Figure 3 In the embodiment of the present utility model Figure 2 A partial enlarged view of point A in the middle;

[0028] Figure 4 In the embodiment of the present utility model Figure 2 BB section view in the figure;

[0029] Figure 5 This is a schematic structural diagram of the exhaust mechanism in an embodiment of the present utility model;

[0030] Figure 6 It is a structural diagram of the sensor and alarm system in an embodiment of the present utility model.

[0031] Explanation of the accompanying symbols: 1. Oil storage cabinet body; 2. Oil level gauge; 3. Long visual oil level gauge; 31. Pipeline; 311. Scale line; 312. Oil-proof layer; 32. Exhaust mechanism; 321. Connector; 322. Exhaust valve; 323. Filter; 33. Connecting port; 34. Protective cover; 341. Auxiliary line; 35. Fastener; 36. Sensor; 37. Alarm system. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] like Figures 1 to 6 The oil storage tank visual oil level gauge with a built-in exhaust device shown in the figure comprises: an oil storage tank body 1, an oil level gauge 2 and a long visual oil level gauge 3. The oil level gauge 2 is arranged at one end of the oil storage tank body 1; the long visual oil level gauge 3 comprises a pipe 31, and an exhaust mechanism 32 is arranged at the top end of the pipe 31. The exhaust mechanism 32 is configured to release the negative pressure in the pipe 31 when the exhaust mechanism 32 is turned on. The pipe 31 also has a scale line 311 for intuitive reading; wherein, the long visual oil level gauge 3 is provided with a plurality of connection ports 33 connecting the pipes 31 and the oil storage tank body 1, the top of the long visual oil level gauge 3 is provided with an inlet connection port 33 for the oil to flow into the oil storage tank, and the bottom of the long visual oil level gauge 3 is provided with an outlet connection port 33 for the oil to flow out of the pipe 31. As shown Figure 1 and Figure 2As shown, the oil conservator body 1 is the basic structure of the oil level gauge and is made of corrosion-resistant materials that can withstand the stored oil. The oil level gauge 2 is located at one end of the oil conservator body 1 and directly displays the oil level. It is made of transparent material or glass, allowing the user to visualize the oil level. The elongated visual oil level gauge 3 comprises a pipe 31, which is the main structure and runs through the entire visual oil level gauge. The pipe 31 has scale lines 311 for intuitive reading, allowing the operator to quickly determine the oil level. An exhaust mechanism 32 is located at the top of the pipe 31. When opened, it releases the negative pressure within the pipe 31, ensuring smooth oil flow. There are multiple connectors 33, each of which is sealed to prevent oil leakage. The inlet connector 33 is located at the top of the elongated visual oil level gauge 3 and is used to flow oil from the oil conservator into the pipe 31. The outlet connector is located at the bottom of the pipe 31 and is used to drain oil from the pipe 31. What we can understand here is that the scale line 311 design of the long visual oil level gauge 3 allows the user to quickly and accurately judge the oil level without the need for additional instruments; the setting of the exhaust mechanism 32 avoids oil flow obstruction caused by negative pressure, ensuring accurate readings while extending the life of the equipment.

[0036] In some embodiments of the present invention, pipe 31 is made of corrosion-resistant tempered glass. This corrosion-resistant material resists corrosion from a variety of oils and chemicals, ensuring the long-term stability of the oil level gauge during use and reducing the risk of damage or failure due to corrosion. The transparency of the tempered glass clearly displays the flow of oil within pipe 31, allowing the user to more intuitively observe oil level changes, enabling timely action and ensuring accurate oil supply.

[0037] Specifically, the inner wall of the pipe 31 is provided with an oil-proof layer 312, and the oil-proof layer 312 is configured to effectively isolate the inner wall of the pipe 31 from the oil. Figure 3 As shown, the oil-proof layer 312 can be made of a high-performance polymer or specialized coating material, offering excellent oil permeability resistance and chemical stability, effectively resisting the erosion of various oils. The oil-proof layer 312 is evenly applied to the inner wall of the pipe 31 through spraying, dipping, or brushing, ensuring comprehensive coverage and enhancing its protective properties. The smooth oil-proof layer 312 reduces frictional resistance during oil flow, improving fluidity and ensuring more accurate and stable oil level readings. The oil-proof layer 312 effectively prevents oil erosion of the inner wall of the pipe 31, extending the service life of the pipe 31 and reducing the frequency of maintenance and replacement.

[0038] Furthermore, a protective sleeve 34 is provided on the outer wall of the pipe 31, and the protective sleeve 34 is configured to expose the scale line 311. Figure 3Protective sleeve 34 is made of a wear-resistant and corrosion-resistant synthetic or metallic material to ensure stability and durability in various environments. Protective sleeve 34 surrounds the outer wall of pipe 31 and has appropriate thickness and rigidity, while ensuring a close fit with pipe 31 and providing adequate protection. Protective sleeve 34 partially exposes scale line 311, allowing the user to clearly read the oil level at any time without removing or moving protective sleeve 34. Protective sleeve 34 effectively prevents external objects from impacting and abrading pipe 31, reducing the risk of failure due to mechanical damage and extending the overall service life of pipe 31.

[0039] On the basis of the above embodiment, an auxiliary line 341 is provided on the protective cover 34, and the auxiliary line 341 is configured to correspond to the value on the scale line 311. Figure 3 Auxiliary lines 341 are positioned parallel to scale lines 311 and are marked with a distinct color or material for enhanced visibility. The position of each auxiliary line 341 corresponds to a specific value on scale line 311, allowing the user to quickly locate the oil level. Auxiliary lines 341 can be applied to the protective sleeve 34 through printing, etching, or spraying, ensuring durability and resistance to wear. The design of auxiliary lines 341 allows users to quickly identify and compare oil levels, especially under high pressure or urgent operation conditions, improving work efficiency. The clear auxiliary lines 341 reduce visual errors when reading the oil level, improving operational accuracy.

[0040] In some embodiments of the present invention, the connection port 33 is connected to the oil storage tank body 1 using a flange connection structure, and the fastener 35 at the connection is made of corrosion-resistant material. Figure 4 As shown, a connection 33 is made of two flanges with mounting holes for fasteners 35. In addition to bolts, fasteners 35 also include spiral wound gaskets, which enhance the sealing performance of connection 33. Fasteners 35 are constructed from corrosion-resistant materials, such as stainless steel, aluminum alloy, or specialty alloys, to enhance the durability and safety of the connection. If necessary, the spiral wound gasket can be made of specialized materials to meet sealing or environmental requirements. Flange connections facilitate equipment installation and removal, reduce maintenance time, and facilitate regular inspection and repair. Flange connections are suitable for connecting various pipelines 31 and oil conservator tanks, effectively addressing the needs of equipment of varying specifications and models.

[0041] In some embodiments of the present invention, the exhaust mechanism 32 includes: a connector 321 and an exhaust valve 322. The connector 321 is provided at the top end of the pipe 31; the exhaust valve 322 is connected to the other end of the connector 321; when the exhaust valve 322 is opened, the negative pressure in the pipe 31 is exhausted. Figure 5As shown, the connector 321 is provided at the top of the pipe 31 and is responsible for connecting the exhaust valve 322 and the pipe 31 to ensure that the gas can flow smoothly. The connector 321 has good pressure resistance and corrosion resistance to adapt to the working environment. The exhaust valve 322 is installed at the other end of the connector 321 and can adjust the gas flow in the pipe 31 by opening or closing. When the exhaust valve 322 is opened, the negative pressure in the pipe 31 is discharged. We should understand that if there is a negative pressure in the pipe 31, it will affect the circulation of the oil in the pipe 31, resulting in the oil level gauge reading not reflecting the actual situation in the oil storage tank body 1. By regularly exhausting the gas, the gas accumulated in the oil in the pipe 31 can be reduced, thereby reducing the risk of explosion or leakage and improving the overall safety of the equipment. The discharge of negative pressure allows the oil to flow freely, and the effective exhaust mechanism prevents the formation of bubbles, improving the reading stability of the oil level gauge.

[0042] Furthermore, the exhaust mechanism 32 further includes a filter 323, which is disposed in the connector 321 and is configured to be detachable. Figure 5 Filter 323 is located inside connector 321, close to the top of pipe 31, to prevent the entry of impurities from outside the device during exhaust. Filter 323 is removable, allowing it to be removed, cleaned, or replaced when needed, ensuring long-term use. A clean filter 323 ensures smooth gas flow, preventing reduced exhaust efficiency due to blockage and further ensuring the rapid discharge of negative pressure.

[0043] In some embodiments of the present invention, the long visual oil level gauge 3 is provided with a sensor 36, which is configured to monitor the height of the oil. Figure 6 As shown, the sensor 36 can transmit monitored oil level data to a display device or control system via wireless or wired means, making the data visible. When the oil level changes, the user can immediately obtain updated information based on the sensor 36, avoiding problems caused by excessively low or high oil levels. The provision of the sensor 36 improves the intelligence level of the long visual oil level gauge 3 and enhances the safety of the device.

[0044] Furthermore, the long visual oil level gauge 3 is also provided with an alarm system 37, which receives a signal from the sensor 36 and issues an alarm. Figure 6Alarm system 37 is connected to sensor 36 and receives real-time oil level data from sensor 36 to determine whether it exceeds the set safety range. If an abnormal oil level is detected, such as too high or too low, alarm system 37 will automatically trigger, issuing an audible and visual alarm to remind the user to take timely action. Alarm system 37 can be integrated with other monitoring systems to record alarm events for subsequent analysis and evaluation, providing data support for improving management measures. Through audible and visual alarms, users can promptly detect problems through visual and auditory means, making operation more convenient and intuitive, and further enhancing the safety of the equipment.

[0045] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A visual oil level gauge for an oil storage tank with a self-contained exhaust device, characterized in that: include: Oil conservator body; An oil level gauge, disposed at one end of the oil conservator body; An elongated visual oil level gauge comprises a pipe, a top end of which is provided with an exhaust mechanism, the exhaust mechanism being configured to release negative pressure in the pipe when the exhaust mechanism is turned on, and the pipe also having scale lines for visual reading; The long visual oil level gauge is provided with a plurality of connection ports for connecting the pipeline and the oil storage tank body. The top of the long visual oil level gauge has an inlet connection port for allowing oil to flow into the oil storage tank, and the bottom of the long visual oil level gauge has an outlet connection port for allowing oil to flow out of the pipeline.

2. The visual oil level gauge for oil storage tank with self-exhaust device according to claim 1 is characterized in that: The pipe is made of corrosion-resistant tempered glass.

3. The visual oil level gauge for oil storage tank with self-exhaust device according to claim 2, characterized in that: The inner wall of the pipeline is provided with an oil-proof layer, and the oil-proof layer is configured to effectively isolate the inner wall of the pipeline from the oil.

4. The visual oil level gauge for oil storage tank with self-exhaust device according to claim 3 is characterized in that: A protective sleeve is provided on the outer wall of the pipe, and the protective sleeve is configured to expose the scale line.

5. The visual oil level gauge for oil storage tank with self-exhaust device according to claim 4, characterized in that: An auxiliary line is provided on the protective sleeve, and the auxiliary line is configured to correspond to the numerical value on the scale line.

6. The visual oil level gauge for oil storage tank with self-exhaust device according to claim 1, characterized in that: The connection port is connected to the oil storage cabinet body by adopting a flange connection structure, and the fasteners at the connection are made of corrosion-resistant material.

7. The visual oil level gauge for oil storage tank with self-exhaust device according to claim 1, characterized in that: The exhaust mechanism comprises: A joint is provided at the top end of the pipeline; an exhaust valve connected to the other end of the connector; After the exhaust valve is opened, the negative pressure in the pipeline is exhausted.

8. The visual oil level gauge for oil storage tank with self-exhaust device according to claim 7, characterized in that: The exhaust mechanism further includes a filter screen, which is disposed in the joint and is configured to be detachable.

9. The visual oil level gauge for oil storage tank with self-exhaust device according to claim 1, characterized in that: The elongated sight gauge is provided with a sensor configured to monitor the level of the oil.

10. The visual oil level gauge for oil storage tank with self-exhaust device according to claim 9, characterized in that: The long visual oil level gauge is further provided with an alarm system, which receives a signal from the sensor and issues an alarm.