Magnetic flap liquid level meter and storage tank

Abstract

The utility model relates to oil and gas storage and transportation technical field especially relates to a kind of magnetic flap liquid level meter and storage tank.Magnetic flap liquid level meter includes liquid level meter body, input pipe and filter, the filter is communicated with the input pipe, the filter is tubular body, the filter is set in the input pipe bottom, one end of the filter is connected with the input pipe, the included angle of filter shaft and the input pipe shaft is acute angle, and the projection of the axis of the filter in vertical direction is located with the axis of the input pipe in the same straight line, the filter extends towards the direction of the liquid level meter body;Storage tank includes tank body and the magnetic flap liquid level meter, the magnetic flap liquid level meter is communicated with the tank body by the input pipe.By the setting, reduce the security risk, use inertia and gravity to carry out natural shunt with impurity and oil gas, improve the unobstructed degree of oil gas flow in input pipe, reduce the frequency of cleaning filter.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas storage and transportation technology, and in particular to a magnetic level gauge and storage tank. Background Technology

[0002] During oil and gas extraction, oil and gas carry away rock debris and other impurities from the bottom of the well. These impurities are then transported and eventually enter oil and gas storage tanks. Due to their high density, these impurities usually settle at the bottom of the tank. When a magnetic level gauge is connected to the outside of the tank, these impurities can enter the gauge from the bottom of the tank through the input pipe, causing blockage and reducing the accuracy of the level gauge reading.

[0003] Existing magnetic level gauges typically have a filter device installed in the input pipe. This filter device is a filter screen, used to filter impurities and prevent them from entering the magnetic level gauge. The filter screen also has a scraper, used to remove impurities adhering to the filter screen, ensuring unobstructed flow in the input pipe. The input pipe also has an impurity collection pipe, which is connected to the bottom of the input pipe. The axis of the impurity collection pipe is perpendicular to the axis of the input pipe. The impurity collection pipe is used to collect impurities that are blocked by the filter screen and cannot enter the magnetic level gauge, as well as impurities scraped off from the filter screen, preventing impurities from accumulating in the input pipe and causing blockage.

[0004] However, this device is only suitable for magnetic float level gauges used for measuring conventional media. Due to the flammable and explosive properties of oil and natural gas, the scraper of the existing filter device generates static electricity or even electric sparks when scraping impurities off the filter screen, posing a significant safety hazard. Some scrapers are even driven by motors, further increasing the safety risk. Since the axis of the impurity collection pipe is perpendicular to the axis of the input pipe, if impurities are collected only through the impurity collection pipe, when the oil and gas flow rate is too high, impurities may be forced past the interface between the impurity collection pipe and the input pipe due to inertia, failing to fall into the impurity collection pipe. This causes the filter screen to be quickly clogged by impurities, hindering the flow of oil and gas in the input pipe and requiring frequent cleaning of the filter device, making it inconvenient to use. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of existing technologies, such as the flammable and explosive properties of oil and natural gas, the static electricity or even electric sparks generated by the friction between the scraper and the filter screen when scraping impurities on the filter screen, which poses a great safety hazard, and the fact that the axis of the impurity collection pipe is perpendicular to the axis of the input pipe. If impurities are collected only through the impurity collection pipe, when the oil and gas flow rate is too fast, the impurities can pass through the interface between the impurity collection pipe and the input pipe due to inertia and fail to fall into the impurity collection pipe. This causes the filter screen to be quickly blocked by impurities, which hinders the flow of oil and gas in the input pipe and requires frequent cleaning of the filter device, making it inconvenient to use. The present invention provides a magnetic float level gauge and storage tank.

[0006] In a first aspect, the present invention provides a magnetic float level gauge, comprising a level gauge body, an input pipe and a filter, wherein the filter is connected to the input pipe and is a pipe body, one end of the filter is connected to the bottom of the input pipe and the other end faces the level gauge body, the angle between the filter axis and the input pipe axis is an acute angle, and the projection of the filter axis in the vertical direction is on the same plane as the input pipe axis.

[0007] This configuration creates a Y-shaped structure between the filter and the input pipe, with the filter acting as a branch of the input pipe. When oil and gas carrying impurities move towards the magnetic level gauge, the impurities, being denser than the oil and gas medium, move along with the flow of oil and gas at the bottom of the input pipe. Since the filter is located at the bottom of the input pipe, and the vertical projection of the filter's axis is aligned with the axis of the input pipe, extending towards the level gauge body, when impurities reach the interface between the filter and the input pipe, they sink vertically under gravity and naturally enter the filter, reducing turbulence and increasing the probability of impurities entering the filter. Furthermore, the acute angle between the filter axis and the input pipe axis reduces resistance as the oil and gas medium flows through the interface, allowing impurities to enter the filter more smoothly and further increasing the probability of impurities entering the filter.

[0008] This design replaces the existing technology that uses a filter screen inside the input pipe to filter impurities and a scraper to remove impurities adhering to the screen. It avoids the possibility of static electricity or even sparks generated by friction between the scraper and the filter screen, reducing safety hazards. Simultaneously, the filter and input pipe together form a Y-shaped structure, fully utilizing inertia and gravity to naturally separate impurities from oil and gas. Impurities enter the filter on their own during flow, improving filtration efficiency and the smoothness of oil and gas flow within the input pipe. This reduces the frequency of filter cleaning and enhances the ease of use. The filter combines the functions of a filter screen filtering impurities and an impurity collection pipe collecting impurities, resulting in a simpler structure and a more compact design, making the maintenance of the magnetic level gauge more convenient.

[0009] The angle between the filter shaft and the input pipe shaft is 40°-50°, preferably 45°.

[0010] The filter is equipped with a filter screen or an adsorption filter element, preferably a filter screen.

[0011] By setting up a filter screen, most impurities are blocked. When cleaning the filter, only the filter screen needs to be cleaned, reducing the number of times the entire filter needs to be cleaned and improving the convenience of filter maintenance.

[0012] The filter screen can be fixedly installed inside the filter or it can be installed in a detachable manner inside the filter.

[0013] When the filter screen is fixedly installed on the filter, it can be connected to the filter by welding or bonding.

[0014] When the filter screen is detachably installed on the filter, it can be connected to the filter via clips or bolts and nuts.

[0015] Preferably, the filter screen is secured inside the filter via a snap-fit ​​mechanism. This design improves the ease of cleaning the filter screen.

[0016] The mesh size of the filter is 100-200 mesh, preferably 200 mesh.

[0017] Considering the characteristics of impurities carried by oil and gas media, a 200-mesh filter can filter out most of the impurities in the oil and gas media, thus improving the filtration effect.

[0018] The filter is fixedly connected to the input pipe, or the filter is detachably connected to the input pipe.

[0019] When the filter is fixedly installed on the inlet pipe, the filter can be connected to the inlet pipe by welding or clamping.

[0020] When the filter is detachably installed on the inlet pipe, it can be connected to the inlet pipe via clips or bolts and nuts.

[0021] Preferably, the filter is connected to the inlet pipe via a snap-fit ​​connection. This design improves the ease of filter disassembly, thereby enhancing the ease of filter cleaning.

[0022] The magnetic level gauge also includes a cleaning device, which is connected to the filter and is used to remove impurities from the filter.

[0023] The cleaning device can be configured as an explosion-proof pump or explosion-proof compressor, etc., and the cleaning device discharges impurities from the filter by suction.

[0024] Preferably, the cleaning device is an explosion-proof pump.

[0025] Preferably, the explosion-proof pump can be connected to the filter via a conduit.

[0026] Preferably, the filter has a hole at the end away from the input pipe, and the conduit extends into the filter through the hole.

[0027] This feature improves the ease of cleaning the filter using an explosion-proof pump.

[0028] In a second aspect, the present invention provides a storage tank, including a tank body and a magnetic level gauge, wherein the magnetic level gauge is connected to the tank body through the input pipe and the output pipe.

[0029] The input pipe can be equipped with a valve. When the filter needs to be cleaned, the valve can be closed to prevent the tank from communicating with the magnetic float level gauge, thus facilitating the cleaning of the filter.

[0030] This setting improves the accuracy of measuring the amount of oil and gas stored in the tank.

[0031] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a magnetic float level gauge. This design replaces the existing technology that uses a filter screen in the input pipe to filter impurities and a scraper to remove impurities adhering to the screen. This avoids the possibility of static electricity or even sparks generated by friction between the scraper and the filter screen, reducing safety hazards. Simultaneously, the filter and input pipe together form a Y-shaped structure, fully utilizing inertia and gravity to naturally separate impurities from oil and gas. Impurities enter the filter during flow, improving filtration efficiency and the smoothness of oil and gas flow in the input pipe. This reduces the frequency of filter cleaning and enhances the ease of use. The filter combines the functions of filtering impurities with the impurity collection pipe, resulting in a simpler and more compact structure, making maintenance of the magnetic float level gauge easier. This utility model also provides a storage tank, which, through this design, improves the accuracy of measuring the amount of oil and gas stored in the tank. Attached Figure Description Figure 1 This is a front view schematic diagram of the magnetic float level gauge provided in Embodiment 1 of this utility model.

[0032] Figure 2 This is a front view schematic diagram of a storage tank according to Embodiment 2 of this utility model.

[0033] Marked in the image: 1-Level gauge body, 2-Input pipe, 3-Filter, 4-Cleaning device, 5-Tank, 6-Conduit, 7-Output pipe. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0035] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0037] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0038] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0039] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0040] Example 1 like Figure 1 As shown, this embodiment provides a magnetic float level gauge, including a level gauge body 1, an input pipe 2, and a filter 3. The filter 3 is connected to the input pipe 2 and is a tube body. The filter 3 is disposed at the bottom of the input pipe 2, and one end of the filter 3 is connected to the input pipe 2. The angle between the axis of the filter 3 and the axis of the input pipe 2 is an acute angle, and the projection of the axis of the filter 3 in the vertical direction is on the same straight line as the axis of the input pipe 2. The filter 3 extends toward the level gauge body 1.

[0041] This configuration allows the filter 3 and the input pipe 2 to form a Y-shaped structure, meaning the filter 3 is a branch of the input pipe 2. When oil and gas carrying impurities move towards the magnetic level gauge, the density of the impurities is greater than that of the oil and gas medium. The impurities move along with the oil and gas flow at the bottom of the input pipe 2. Since the filter 3 is located at the bottom of the input pipe 2, and the projection of the axis of the filter 3 in the vertical direction is on the same straight line as the axis of the input pipe 2, and the filter 3 extends towards the level gauge body 1, when the impurities move to the interface between the filter 3 and the input pipe 2, the impurities sink vertically under the influence of gravity and naturally enter the filter 3, reducing the generation of turbulence and increasing the probability of impurities entering the filter 3. Since the angle between the axis of the filter 3 and the axis of the input pipe 2 is an acute angle, when the oil and gas medium flows through the interface between the filter 3 and the input pipe 2, the acute angle reduces the resistance of the oil and gas medium flow turning into the filter 3, allowing the impurities to enter the filter 3 more smoothly, further increasing the probability of impurities entering the filter 3.

[0042] This design replaces the existing technology that uses a filter screen inside the input pipe 2 to filter impurities and a scraper to remove impurities adhering to the screen. This avoids the possibility of static electricity or even sparks generated by friction between the scraper and the filter screen, reducing safety hazards. Simultaneously, the filter 3 and the input pipe 2 together form a Y-shaped structure, fully utilizing inertia and gravity to naturally separate impurities from the oil and gas. Impurities enter the filter 3 during flow, improving filtration efficiency and the smoothness of oil and gas flow within the input pipe 2. This reduces the frequency of cleaning the filter 3 and enhances its ease of use. The filter 3 combines the functions of a filter screen filtering impurities and an impurity collection pipe collecting impurities, resulting in a simpler structure and a more compact design, making the maintenance of the magnetic level gauge more convenient.

[0043] In one or more embodiments, the angle between the filter 3 axis and the input pipe 2 axis is an acute angle. For example, the angle between the filter 3 axis and the input pipe 2 axis can be set to 40°-50°. In this embodiment, the angle between the filter 3 axis and the input pipe 2 axis is 45°.

[0044] The filter 3 is equipped with a filter screen.

[0045] By setting up a filter screen, most impurities are blocked. When cleaning the filter 3, only the filter screen needs to be cleaned, reducing the number of times the entire filter 3 needs to be cleaned and improving the convenience of filter 3 maintenance.

[0046] The filter screen is secured inside filter 3 via a snap-fit ​​mechanism. This design improves the ease of cleaning the filter screen.

[0047] The filter screen has a mesh size of 200.

[0048] Considering the characteristics of impurities carried by oil and gas media, a 200-mesh filter can filter out most of the impurities in the oil and gas media, thus improving the filtration effect.

[0049] The filter 3 is connected to the inlet pipe 2 via a snap-fit ​​connection. This design improves the ease of disassembly of the filter 3, thereby enhancing the ease of cleaning it.

[0050] The magnetic level gauge also includes a cleaning device 4, which is connected to the filter 3 and is used to remove impurities from the filter 3.

[0051] The cleaning device 4 is an explosion-proof pump. The explosion-proof pump can be connected to the filter 3 through the conduit 6. The filter 3 has a hole at the end away from the input pipe 2, and the conduit 6 extends into the filter 3 through the hole.

[0052] This setup improves the ease of cleaning filter 3 using an explosion-proof pump.

[0053] Example 2 As attached Figure 2 As shown, this embodiment provides a storage tank, including a tank body 5 and a magnetic float level gauge as described in Embodiment 1. The magnetic float level gauge is connected to the tank body 5 through the input pipe 2 and the output pipe 7. The cleaning device 4 and the conduit 6 are not shown.

[0054] This setting improves the accuracy of measuring the amount of oil and gas stored in the tank.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetic float level gauge, comprising a level gauge body (1), an input pipe (2), and a filter (3), wherein the filter (3) is connected to the input pipe (2), characterized in that, The filter (3) is a tube. One end of the filter (3) is connected to the bottom of the input pipe (2), and the other end faces the liquid level gauge body (1). The angle between the axis of the filter (3) and the axis of the input pipe (2) is an acute angle, and the projection of the axis of the filter (3) in the vertical direction is on the same plane as the axis of the input pipe (2).

2. The magnetic float level gauge according to claim 1, characterized in that, The angle between the axis of the filter (3) and the axis of the input pipe (2) is 40°-50°.

3. A magnetic float level gauge according to claim 1, characterized in that, The filter (3) is equipped with a filter screen.

4. A magnetic float level gauge according to claim 3, characterized in that, The filter screen is detachably disposed within the filter (3).

5. A magnetic float level gauge according to claim 3, characterized in that, The mesh size of the filter is 100-200 mesh.

6. A magnetic float level gauge according to claim 1, characterized in that, The filter (3) is detachably connected to the input pipe (2).

7. A magnetic float level gauge according to claim 6, characterized in that, The filter (3) is connected to the input pipe (2) by a snap-fit.

8. A magnetic float level gauge according to any one of claims 1-7, characterized in that, It also includes a cleaning device (4) that can be connected to the filter (3).

9. A magnetic float level gauge according to claim 8, characterized in that, The cleaning device (4) is an explosion-proof pump, which can be connected to the filter (3) through a conduit.

10. A storage tank, characterized in that, The system includes a tank (5) and a magnetic level gauge as described in any one of claims 1-9, wherein the magnetic level gauge is connected to the tank (5) via the input pipe (2) and the output pipe (7).

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