An automatic decontamination metering device and decontamination method for storage tanks

Abstract

This application relates to the field of liquid metering technology, and in particular to an automatic decontamination tank metering device and method. The automatic decontamination tank metering device includes a multi-functional float and a servo mechanism connected to the multi-functional float via a measuring scale. The multi-functional float includes a metal column vertically positioned at its lower center and a resonant cylinder density sensor. A decontamination removal component for removing impurities from the surface of the resonant cylinder density sensor is disposed on the metal column. The automatic decontamination tank metering device and method of this application can automatically remove impurities from the surface of the resonant cylinder density sensor, avoiding the influence of impurities on the density sensor and ensuring measurement accuracy.

Description

Technical Field

[0001] This application relates to the field of liquid metering technology, and in particular to an automatic decontamination metering device and decontamination method for storage tanks. Background Technology

[0002] A multi-functional servo level gauge, typically used to measure the level, temperature, density, and oil-water interface of liquids (oil and water) in storage tanks, consists of a servo mechanism and a multi-functional float. The servo mechanism controls the multi-functional float to move up and down within the tank, thereby measuring the temperature and density of the liquid at different heights. When measuring the density of the liquid, a resonant cylinder density sensor installed below the multi-functional float is used to measure the liquid density.

[0003] In the existing technology, when the multi-functional servo level gauge is working, the liquid in the storage tank may contain impurities. As the multi-functional float moves up and down, the impurities will adhere to the resonant cylinder of the density sensor, causing density measurement deviation. It is necessary to manually clean the impurities on the surface of the resonant cylinder at regular intervals to ensure the accuracy of density measurement, which affects efficiency and is time-consuming and labor-intensive. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide an automatic decontamination tank metering device and decontamination method, which automatically removes impurities from the resonant cylinder of the density sensor during operation, thereby ensuring the accuracy of density measurement.

[0005] To achieve the above objectives, this application provides an automatic decontamination tank metering device, comprising a multi-functional float and a servo mechanism connected to the multi-functional float via a measuring scale.

[0006] The multifunctional float includes: a metal column vertically disposed at the lower middle position, and a resonant cylinder density sensor;

[0007] A cleaning assembly for removing impurities from the surface of the resonant cylinder density sensor is provided on the metal column.

[0008] Furthermore, the cleaning component is slidably connected to the metal column, and the cleaning component moves relative to the resonant cylinder density sensor in the vertical direction to remove impurities from the surface of the resonant cylinder density sensor.

[0009] Furthermore, the decontamination assembly includes a floating roof, an inner cylinder, and an outer cylinder.

[0010] The floating roof is provided with a central opening;

[0011] The inner and outer cylinders are located on the floating roof and are coaxially nested with the central opening.

[0012] Furthermore, the outer diameter of the inner cylinder is adapted to the inner diameter of the resonant cylinder density sensor, and the inner diameter of the outer cylinder is adapted to the outer diameter of the resonant cylinder density sensor.

[0013] The metal pillar is located in the central opening;

[0014] The floating disk slides on the metal column, causing the inner and outer cylinders to move up and down relative to the resonant cylinder density sensor, removing impurities from the inner and outer surfaces of the resonant cylinder density sensor.

[0015] Furthermore, a limiting ring is provided at the lower part of the cleaning component and on the metal column to control the sliding position of the cleaning component and prevent the cleaning component from slipping off.

[0016] Furthermore, the density of the cleaning component is greater than the density of the liquid to be measured.

[0017] Furthermore, the resonant frequency of the resonant cylinder density sensor is linearly related to the density of the liquid being measured.

[0018] Furthermore, a temperature sensor and an oil-water interface sensor are installed on the metal column.

[0019] To achieve the above objectives, this application also provides a method for cleaning a storage tank metering device, comprising:

[0020] The multi-functional float moves downward under the drive of the servo mechanism. Due to the liquid resistance, the cleaning component moves upward relative to the resonant cylinder density sensor, generating an upward scraping action to remove impurities from the resonant cylinder density sensor.

[0021] The relative motion stops when the cleaning component and the resonant cylinder density sensor are completely overlapped.

[0022] The multi-functional float stops moving downwards, and the dirt removal component moves downwards relative to the resonant cylinder density sensor due to gravity, generating a downward scraping action to remove impurities from the resonant cylinder density sensor.

[0023] Furthermore, the cleaning component moves upward relative to the resonant cylinder density sensor under the action of liquid resistance, which is achieved by the floating plate driving the inner and outer cylinders upward;

[0024] The cleaning component moves downward relative to the resonant cylinder density sensor under the action of liquid resistance, and the inner and outer cylinders are moved downward by the floating plate.

[0025] The automatic decontamination tank metering device and decontamination method disclosed in this application have the following beneficial effects:

[0026] The automatic decontamination tank metering device of this application, during use, causes the floating plate to slide on the metal column due to the buoyancy of the liquid, thereby causing the decontamination component and the resonant density sensor to overlap and separate, in order to remove impurities on the surface of the resonant density sensor, avoid the influence of impurities on the density sensor, and ensure the accuracy of density measurement.

[0027] Other features and advantages of this application will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing this application. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the present application and form part of the specification. Together with the embodiments of the present application, they serve to explain the present application but do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a schematic diagram of the automatic decontamination metering device for a storage tank according to an embodiment of this application.

[0030] Figure 2 for Figure 1 Sectional view of AA;

[0031] Figure descriptions: 1-Servo mechanism; 2-Measuring scale; 3-Multifunctional float; 4-Resonant flux density sensor; 5-Inner cylinder; 6-Outer cylinder; 7-Float; 8-Limiting ring; 9-Metal column; 10-Gap. Detailed Implementation

[0032] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0033] It should be understood that the steps described in the method embodiments of this application may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this application is not limited in this respect.

[0034] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0035] It should be noted that the terms "one" and "multiple" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless explicitly stated otherwise in the context, they should be understood as "one or more". "Multiple" should be understood as two or more.

[0036] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0037] Example 1

[0038] One embodiment of this application provides an automatic decontamination tank metering device to ensure the accuracy of the density sensor.

[0039] The following will refer to Figure 1-2 The automatic decontamination metering device for storage tanks described in this application is described in detail.

[0040] Figure 1 This is a schematic diagram of the structure of the automatic decontamination tank metering device according to an embodiment of this application, as shown below. Figure 1 As shown, the automatic decontamination tank metering device of this application includes: a servo mechanism 1, a metering scale 2, a multi-functional float 3, and a decontamination assembly, wherein...

[0041] Servo mechanism 1 is connected to multi-functional float 3 via measuring tape 2 to control the rise and fall of multi-functional float.

[0042] The cleaning component is located at the bottom of the multi-functional float 3, and removes dirt from the multi-functional float 3 as it moves up and down.

[0043] The multifunctional float 3 includes: a metal column 9 with an integrated temperature sensor and a resonant cylinder density sensor 4, wherein...

[0044] Metal column 9 is vertically set at the lower center of multi-functional float 3;

[0045] The resonant cylinder of the resonant cylinder density sensor 4 is set at the lower part of the multifunctional float 3 with the metal column 9 as the axis.

[0046] The cleaning component is slidably connected to the metal column 9. In embodiments of this application, the cleaning component includes:

[0047] Inner cylinder 5, outer cylinder 6, and floating roof 7, among which,

[0048] The floating roof 7 is provided with a central opening;

[0049] The inner cylinder 5 and the outer cylinder 6 are respectively set on the upper surface of the floating disk 7 with the central opening of the floating disk 7 as the center, forming a coaxial nested arrangement;

[0050] The outer diameter of the inner cylinder 5 is adapted to the inner diameter of the resonant cylinder of the resonant cylinder density sensor 4;

[0051] The inner diameter of the outer cylinder 6 is adapted to the outer diameter of the resonant cylinder of the resonant cylinder density sensor 4, that is, a gap 10 is left between the inner cylinder 5 and the outer cylinder 6 for the resonant cylinder of the resonant cylinder density sensor 4 to pass through.

[0052] Metal column 9 is located at the axis of the contamination removal component and the resonant cylinder of the resonant density sensor 4;

[0053] In this embodiment, the metal column 9 is disposed in the central opening of the floating disk 7, and the floating disk 7 slides along the metal column 9 so that the resonant cylinder of the resonant cylinder density sensor 4 moves up and down between the inner cylinder 5 and the outer cylinder 6.

[0054] In this embodiment, through the relative movement of the resonant cylinder of the resonant cylinder density sensor 4 with the inner cylinder 5 and the outer cylinder 6, the inner cylinder 5 removes impurities from the inner surface of the resonant cylinder of the resonant cylinder density sensor 4, and the outer cylinder 6 removes impurities from the outer surface of the resonant cylinder of the resonant cylinder density sensor 4.

[0055] It is understandable that the resonant frequency of the resonant cylinder density sensor 4 has a certain linear relationship with the density of the liquid being measured.

[0056] In this embodiment, the inner cylinder 5 and outer cylinder 6 of the cleaning component are both mounted on the floating plate 7 and move up and down as the floating plate 7 slides. The resonant cylinder density sensor 4 is fixedly mounted on the multifunctional float body 3.

[0057] In some other implementations, the positions of the cleaning component and the resonant cylinder density sensor 4 can be interchanged. That is, the inner cylinder 5 and the outer cylinder 6 of the cleaning component are both fixedly mounted on the multi-functional float body 3, and the resonant cylinder density sensor 4 is fixedly mounted on the floating plate 7 and moves with the sliding of the floating plate 7.

[0058] Understandably, the cleaning components and the resonant cylinder density sensor 4 can be designed to ensure that one of them can move with the floating roof 7 and that the other can overlap and separate.

[0059] In this embodiment, a limiting ring 8 is also provided on the metal column 8. The limiting ring 8 prevents the floating disk 7 from slipping off and controls the sliding position of the floating disk 7.

[0060] It should be noted that in this embodiment, the overall density of the floating plate 7, the inner cylinder 5, and the outer cylinder 6 is greater than the density of the liquid to be measured.

[0061] The automatic decontamination process of the automatic decontamination storage tank metering device in Embodiment 1 of this application is as follows:

[0062] When the multi-functional float 3 moves downward under the drive of the servo mechanism 1, due to the liquid resistance, the float 7 moves upward relative to the resonant cylinder density sensor 4, causing the inner cylinder 5 and outer cylinder 6 of the cleaning component to move and perform an upward scraping action on the resonant cylinder density sensor 4. The float stops moving when it is fully aligned with the root of the resonant cylinder density sensor 4. When the multi-functional float stops moving, because the buoyancy of the float 7 is less than its weight, the float 7 descends due to gravity. During the descent of the float 7, the inner cylinder 5 and outer cylinder 6 of the cleaning component move and perform a downward scraping action on the resonant cylinder density sensor 4. Through the above actions, automatic scraping and cleaning of the resonant cylinder density sensor 4 is achieved.

[0063] The above description is merely a partial embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0064] Furthermore, while the operations are described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in sequential order. Multitasking and parallel processing may be advantageous in certain environments. Similarly, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this application. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0065] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

Claims

1. An automatic decontamination tank metering device, comprising: A multi-functional float and a servo mechanism connected to the multi-functional float via a measuring tape, characterized in that, The multifunctional float includes: a metal column vertically disposed at the lower middle position, and a resonant cylinder density sensor; A cleaning assembly for removing impurities from the surface of the resonant cylinder density sensor is provided on the metal column. The cleaning assembly is slidably connected to the metal column and moves relative to the resonant cylinder density sensor in the vertical direction to remove impurities from the surface of the resonant cylinder density sensor. The cleaning assembly includes a floating plate, an inner cylinder, and an outer cylinder. The floating roof is provided with a central opening, and the metal column is located in the central opening; The inner cylinder and outer cylinder are located on the floating plate and are coaxially nested with the central opening. The outer diameter of the inner cylinder is adapted to the inner diameter of the resonant cylinder density sensor, and the inner diameter of the outer cylinder is adapted to the outer diameter of the resonant cylinder density sensor. The floating disk slides on the metal column, causing the inner and outer cylinders to move up and down relative to the resonant cylinder density sensor, thereby removing impurities from the inner and outer surfaces of the resonant cylinder density sensor; The servo mechanism is connected to the multi-functional float and the measuring tape to control the rise and fall of the multi-functional float.

2. The automatic decontamination tank metering device according to claim 1, characterized in that, A limit ring is also provided at the lower part of the cleaning component and on the metal column to control the sliding position of the cleaning component and prevent the cleaning component from slipping off.

3. The automatic decontamination tank metering device according to claim 1, characterized in that, The density of the cleaning component is greater than the density of the liquid being measured.

4. The automatic decontamination tank metering device according to claim 1, characterized in that, The resonant frequency of the resonant cylinder density sensor is linearly related to the density of the liquid being measured.

5. The automatic decontamination tank metering device according to claim 1, characterized in that, A temperature sensor and an oil-water interface sensor are installed on the metal column.

6. A method for removing contaminants from a storage tank metering device, using the automatic contaminant removal storage tank metering device as described in any one of claims 1-5, comprising: The multi-functional float moves downward under the drive of the servo mechanism. Due to the liquid resistance, the cleaning component moves upward relative to the resonant cylinder density sensor, generating an upward scraping action to remove impurities from the resonant cylinder density sensor. The relative motion stops when the cleaning component and the resonant cylinder density sensor are completely overlapped. The multi-functional float stops moving downwards, and the dirt removal component moves downwards relative to the resonant cylinder density sensor due to gravity, generating a downward scraping action to remove impurities from the resonant cylinder density sensor.

7. The method for removing contaminants from the storage tank metering device according to claim 6, characterized in that, The cleaning component moves upward relative to the resonant cylinder density sensor under the action of liquid resistance, which is achieved by the floating plate driving the inner and outer cylinders upward. The cleaning component moves downward relative to the resonant cylinder density sensor under the action of liquid resistance, and the inner and outer cylinders are moved downward by the floating plate.

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