Condition monitoring device, oil storage equipment and system for floating oil delivery unit

Abstract

This disclosure relates to a condition monitoring device, oil storage equipment, and system for a floating oil delivery device. The condition monitoring device includes a hose and a pressure monitoring instrument, which are used in conjunction with the floating oil delivery device. The hose is installed on the floating suction arm of the floating oil delivery device. One end of the hose passes through the inner floating top and communicates with the gas phase space above the inner floating top, while the other end is connected to a pressure monitoring instrument on the side wall of the oil storage tank. The operating status of the floating oil delivery device is monitored by detecting the pressure signal inside the hose using the pressure monitoring instrument. That is, when the floating oil delivery device is in normal operating condition, the pressure inside the hose is the same as the gas pressure above the inner floating top, and the pressure monitoring instrument displays zero. When the floating oil delivery device malfunctions, causing it to detach from the inner floating top, the pressure signal of the pressure monitoring instrument changes significantly, indicating a malfunction in the floating oil delivery device, thus achieving real-time monitoring of the operating status of the floating oil delivery device.

Description

Technical Field

[0001] This disclosure relates to the field of aviation fuel, and more particularly to a condition monitoring device, fuel storage equipment and system for a floating fuel delivery device. Background Technology

[0002] According to civil aviation standards and regulations, apron pipelines or tank refueling trucks should be equipped with floating fuel dispensing devices. Due to the settling of liquids inside the tank, water and impurities in the oil are concentrated at the bottom of the oil layer under the influence of gravity. Therefore, the floating fuel dispensing device works in conjunction with the internal floating roof. One end of the device is connected to the short outlet pipe at the bottom of the tank and connected to the downstream fuel dispensing equipment, while the other end is suspended below the liquid surface with the internal floating roof. When dispensing or receiving fuel, the floating fuel dispensing device moves up and down with the internal floating roof, always extracting the surface layer of fuel, ensuring the dispensing of clean fuel and extending the service life of downstream purification equipment.

[0003] In actual operation, the floating oil outlet device may jam, detach from the inner floating roof, or sink to the bottom of the storage tank. During oil receiving and discharging, it may suck in impurities present in the bottom oil layer, shortening the service life of downstream purification equipment. Currently, the operating status of the inner floating roof is monitored through indicators or other devices, but there is no intuitive method to monitor the operating status of the floating oil outlet device below the inner floating roof. Once the floating oil outlet device jams, detaches from the inner floating roof, or sinks to the bottom of the storage tank, its operating status cannot be known in a timely manner, causing the floating oil outlet device to lose its intended function after detaching from the inner floating roof. Summary of the Invention

[0004] The purpose of this disclosure is to provide a condition monitoring device, oil storage equipment and system for a floating oil delivery device, so as to solve the problem that the operating status of existing floating oil delivery devices cannot be monitored.

[0005] To achieve the above objectives, this disclosure provides a condition monitoring device for use in conjunction with a floating oil outlet device within an oil storage tank. The floating oil outlet device includes an inner floating roof and a floating oil suction arm connected to the inner floating roof, with the floating oil suction arm located below the inner floating roof. The condition monitoring device includes:

[0006] A hose is fixedly mounted on the floating oil suction arm and is adapted to the shape of the floating oil suction arm. One end of the hose passes through the inner floating top and communicates with the gas phase space above the inner floating top.

[0007] A pressure monitoring instrument is installed on the side wall of the oil storage tank and connected to the other end of the hose. The pressure monitoring instrument is used to monitor the pressure changes in the hose in order to monitor the operating status of the floating oil outlet device.

[0008] Optionally, it also includes a connecting mechanism, which includes a connecting pipe and a rubber joint;

[0009] The connecting pipe is fixed on the inner floating roof, with one end extending upward to the gas phase space above the inner floating roof and the other end extending downward to the liquid space below the inner floating roof.

[0010] The end of the hose near the inner floating roof passes through the connecting pipe and communicates with the gas phase space above the inner floating roof. The rubber joint is fixedly installed on the outer wall of the connecting pipe and the hose along the axial direction of the connecting pipe.

[0011] Optionally, the frictional force between the hose and the rubber joint is greater than the weight of the hose suspended above the lower surface of the inner floating roof, and less than the downward resultant force experienced by the floating oil suction arm when it is completely submerged after detaching from the inner floating roof.

[0012] Optionally, the cross-sectional diameter of the connecting pipe is larger than the cross-sectional diameter of the flexible hose;

[0013] The rubber joint is a reducing rubber joint and is adapted to the shape of the end of the connecting pipe and the end of the hose, for sealing the end of the connecting pipe located above the inner floating roof.

[0014] Optionally, the status monitoring device further includes a plurality of fasteners for fixing the hose to the floating suction arm, wherein the fastener closest to the inner floating top is located on the axis of the connecting pipe.

[0015] Optionally, the hose has a first bend located between the inner floating roof and the fixing member near the inner floating roof.

[0016] Along the axis of the connecting pipe, the extension distance of the first bend is greater than or equal to the floating distance when the floating oil suction arm floats.

[0017] Optionally, the floating oil outlet device includes a plurality of the floating oil suction arms, and the hose has a second bend that is opposite to the connection position of the adjacent floating oil suction arm.

[0018] Optionally, a flow pipe is provided between the bottom of the side wall of the oil storage tank and the pressure monitoring instrument, one end of the flow pipe is connected to the hose, and the other end of the flow pipe is provided with a drain port.

[0019] Optionally, the pressure monitoring instrument and the drain outlet are respectively equipped with ball valves in the opposite direction of liquid flow.

[0020] Optionally, the oil storage tank and the hose are connected by a flange, and the flange is connected with an electrostatic jumper.

[0021] Optionally, the pressure monitoring instrument includes a first pressure display gauge.

[0022] This disclosure also proposes an oil storage device, including pipelines and a condition monitoring device and an oil storage tank as described above. The oil storage tank includes a floating oil outlet device, and the condition monitoring device cooperates with the floating oil outlet device to monitor the operating status of the floating oil outlet device.

[0023] This disclosure also proposes an oil storage system, including the oil storage device as described above, wherein the pressure monitoring instrument in the oil storage device includes a pressure transmitter and a second pressure display meter for remotely monitoring the operating status of the floating oil outlet device, the second pressure display meter being connected to the pressure transmitter.

[0024] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0025] As can be seen from the above embodiments, the status monitoring device disclosed herein, used in conjunction with the floating oil outlet device, includes a hose and a pressure monitoring instrument. The hose is installed on the floating suction arm of the floating oil outlet device. One end of the hose passes through the inner floating top and communicates with the gas phase space above the inner floating top, while the other end is connected to a pressure monitoring instrument on the side wall of the oil storage tank. The operating status of the floating oil outlet device is monitored by detecting the pressure signal within the hose using the pressure monitoring instrument. Specifically, when the floating oil outlet device is in normal operating condition, the pressure inside the hose is the same as the gas pressure above the inner floating top, at which point the pressure inside the hose is zero, and the pressure monitoring instrument displays zero. When the floating oil outlet device jams or malfunctions in its connection with the inner floating top, causing the floating oil outlet device to detach from the inner floating top, the hose detaches from the inner floating top and falls into the liquid space of the oil storage tank along with the floating oil outlet device. At this time, the hose has hydrostatic pressure, and the pressure signal of the pressure monitoring instrument shows a significant change, indicating a malfunction in the floating oil outlet device. This allows for real-time monitoring of the operating status of the floating oil outlet device.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0028] Figure 1 This is a front view schematic diagram of a condition monitoring device according to an exemplary embodiment of the present disclosure.

[0029] Figure 2 yes Figure 1 A magnified schematic diagram of part A in the diagram.

[0030] Figure 3yes Figure 2 The diagram shows the structure of the rubber joint.

[0031] Figure 4 yes Figure 1 The diagram shows a top view of the condition monitoring device.

[0032] Figure 5 yes Figure 1 The diagram shows the structure of the status detection port of the floating oil outlet device. Detailed Implementation

[0033] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0034] In this disclosure, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0035] It should be noted that if the embodiments of this disclosure involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this disclosure involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this disclosure.

[0037] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0038] This disclosure provides a condition monitoring device, oil storage device, and system for a floating oil outlet device, to solve the problem that the operating status of existing floating oil outlet devices cannot be monitored. The condition monitoring device, oil storage device, and system of this disclosure will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments and implementations can be combined with each other.

[0039] See Figures 1 to 5 As shown, this embodiment of the present disclosure provides a status monitoring device 100, which is used to cooperate with a floating oil outlet device 300 in an oil storage tank 200 to monitor the operating status of the floating oil outlet device 300.

[0040] The floating oil outlet device 300 described in this article has the conventional structure and function of floating oil outlet devices currently on the market, such as... Figure 1 As shown, the floating oil outlet device 300 includes an inner floating roof 31 and a floating oil suction arm 32. The inner floating roof 31 is located inside the oil storage tank 200 and floats on the liquid contained in the oil storage tank 200. Figure 2As shown, a connector 33 is provided between the inner floating top 31 and the upper end of the floating oil suction arm 32, which is used to pull the floating oil suction arm 32 to suspend it in the liquid. The oil suction port 321 of the floating oil suction arm 32 floats up and down with the liquid level in the oil storage tank 200. At this time, the connector 33 is in the working state. When the traction force between the inner floating top 31 and the floating oil suction arm 32 is greater than the threshold value when the connector 33 is in the disconnected state, the connector 33 is in the disconnected state, and the inner floating top 31 is separated from the floating oil suction arm 32.

[0041] The outlet N1 of the floating suction arm 32 is connected to the bottom of the side wall of the oil storage tank 200 and to the downstream purification equipment, thereby outputting fuel from the oil storage tank 200 through the floating suction arm 32. Since the oil suction port 321 of the floating suction arm 32 is suspended below the fuel oil surface along with the inner floating roof 31 and floats up and down with the rise and fall of the liquid level, the floating suction arm 32 always draws in the upper layer of fuel oil by utilizing the principle of sedimentation of water and impurities under gravity, which can ensure that relatively clean fuel oil is produced and extend the service life of the downstream purification equipment.

[0042] In actual operation, the floating oil outlet device may jam, detach from the inner floating roof, or sink to the bottom of the storage tank. During oil receiving and discharging, it may suck in impurities present in the bottom oil layer, shortening the service life of downstream purification equipment. Currently, the operating status of the inner floating roof is monitored through indicators or other devices, but there is no intuitive method to monitor the operating status of the floating oil outlet device below the inner floating roof. Once the floating oil outlet device jams, detaches from the inner floating roof, or sinks to the bottom of the storage tank, its operating status cannot be known in a timely manner, causing the floating oil outlet device to lose its intended function after detaching from the inner floating roof.

[0043] To solve the above-mentioned technical problems, this specification provides a condition monitoring device 100, referring to... Figures 1 to 2 As shown, the condition monitoring device 100 includes a hose 11 and a pressure monitoring instrument 50. Wherein, combined with Figure 1As shown, the hose 11 is fixed to the floating suction arm 32. One end of the hose 11 near the inner floating roof 31 passes through the inner floating roof 31 and communicates with the gas phase space above the inner floating roof 31. The bottom of the side wall of the oil storage tank 200 is provided with a floating oil outlet device status detection port N2. The pressure monitoring instrument 50 is installed at the floating oil outlet device status detection port N2. The other end of the hose 11 is connected to the pressure monitoring instrument 50. At this time, the pressure inside the hose 11 is the same as the air pressure above the inner floating roof 31, both of which are atmospheric pressure, and the pressure monitoring instrument 50 displays 0. When the floating oil outlet device jams or the connecting piece 33 between the floating suction arm 32 and the inner floating roof 31 becomes loose, causing the floating suction arm 32 to detach from the inner floating roof 31, the hose 11 will be pulled by the floating suction arm 32. The hose 11 will detach from the inner floating roof 31 and fall into the bottom of the oil storage tank 200 or become stuck in the liquid. At this time, the pressure inside the hose 11 is the hydrostatic pressure of the liquid column. As the hose 11 sinks deeper, the hydrostatic pressure of the liquid column increases, and the pressure monitoring instrument 50 will show obvious pressure changes. This indicates that the floating oil suction arm 32 has detached from the inner floating top 31 or sunk to the bottom of the oil storage tank 200 and is in a faulty condition. This allows the staff to perform timely maintenance, ensure the operation of the floating oil outlet device, produce cleaner fuel, and extend the service life of the downstream purification equipment.

[0044] Optionally, the internal floating roof 31 fully covers the oil surface in the oil storage tank 200 to prevent oil vapor evaporation. At the same time, in order not to affect the normal operation of the internal floating roof 31, there is a gap between the internal floating roof 31 and the inner wall of the oil storage tank 200, and this gap is sealed with deformable materials such as fluororubber or metal.

[0045] Optional, combined Figure 3 As shown, the floating oil outlet device status detection port N2 and the oil outlet N1 are located close to each other, which facilitates the installation of hose 11 to monitor the status of the floating oil outlet device, and is easy to operate and saves costs.

[0046] As can be seen from the above embodiments, regarding the current inability to promptly and easily monitor whether the floating oil outlet device has detached from the inner floating plate and lost its intended function during normal operation of the oil tank, the floating oil outlet device status monitoring device of this disclosure monitors the operating status of the floating oil outlet device through changes in pressure signals. Staff can promptly understand the operating status of the floating oil outlet device during daily inspections. That is, while ensuring safety and economy, it can, to a certain extent, enable oil depot managers to have a more comprehensive understanding of the floating oil outlet device, facilitating timely response measures should related problems occur. Furthermore, this status monitoring device has a simple structure, low cost, and improves the status monitoring efficiency of the floating oil outlet device.

[0047] It should be noted that during normal operation of the oil tank, the liquid in hose 11 should be completely drained to prevent residual liquid column pressure from affecting the monitoring of the floating oil outlet device 300's operating status. During oil tank maintenance, the medium in the hose should be completely drained to prevent residual medium from evaporating and creating an oil and gas space.

[0048] Optionally, according to the design specifications for fuel supply engineering at civil transport airports, firstly, components in contact with aviation fuel should not be made of copper; secondly, floating fuel delivery devices should preferably be made of stainless steel or aluminum alloy. Therefore, the condition monitoring device disclosed herein uses stainless steel and fluororubber materials, which have no impact on the aviation fuel medium. Furthermore, hose 11 is a metal hose with excellent flexibility and tensile strength, meeting the requirements for pressure monitoring, such as stainless steel or aluminum alloy.

[0049] In an optional embodiment, the hose 11 is connected to the bottom opening of the oil storage tank 200 via a mating flange. An electrostatic bridging connection is made at the flange joint. Specifically, a rubber gasket is provided between the two flanges, and the flanges are fixed with bolts. An electrostatic bridging wire 101 is installed between the bolts to prevent static electricity from accumulating on the metal hose 11 and failing to dissipate. Optionally, the electrostatic bridging wire should be a copper core flexible wire with a cross-sectional area of ​​not less than 6 mm². 2 .

[0050] In an alternative embodiment, the pressure monitoring instrument 50 includes a first pressure display gauge 51.

[0051] The first pressure display gauge 51 is installed at the floating oil outlet device status detection port N2 at the bottom of the side wall of the oil storage tank 200. It is used to display pressure signals. During daily inspections, oil depot managers can use the first pressure display gauge 51 to understand the operation of the floating oil outlet device on-site, which facilitates the timely detection of problems and the formulation of countermeasures.

[0052] In an optional embodiment, the condition monitoring device 100 further includes a connection mechanism 400, which is combined with... Figure 2 As shown, the connecting mechanism 400 includes a connecting pipe 41 and a rubber joint 42.

[0053] The connecting pipe 41 is fixed to the inner floating roof 31. One end of the connecting pipe 41 extends upward to the gas phase space above the inner floating roof 31, and the other end extends downward to the liquid space below the inner floating roof 31. According to industry standards for inner floating roofs, there are certain requirements for the opening components on the inner floating roof. For example, the depth D1 of the opening component (such as the connecting pipe 41) entering the liquid in the oil storage tank 200 should not be less than 100 mm, and the height D2 of the opening component extending out of the liquid in the oil storage tank should not be less than 150 mm.

[0054] One end of the hose 11 near the inner floating roof 31 passes through the connecting pipe 41 and communicates with the gas phase space above the inner floating roof 31. A rubber joint 42 is fixedly installed along the axial direction of the connecting pipe 41 on the outer wall of both the connecting pipe 41 and the hose 11. The rubber joint 42 is used to stably install the hose 11 onto the connecting pipe 41, and a gap exists between the hose 11 and the side wall of the connecting pipe 41 to facilitate the detachment of the hose 11 from the connecting pipe 41, ensuring the normal operation of the floating oil outlet device 300.

[0055] Furthermore, a first hose clamp 421 is provided on the outer periphery of the rubber joint 42, and the connecting pipe 41 and the rubber joint 42 are tightly connected by the first hose clamp 421.

[0056] Optionally, there is a gap between the flexible hose 11 and the sidewall of the connecting pipe 41, and the cross-sectional diameter D3 of the connecting pipe 41 is larger than the cross-sectional diameter D4 of the flexible hose 11. Therefore, the rubber joint 42 is set as a reducing rubber joint. Figure 3 As shown, the rubber joint 42 is adapted to the shape of the end of the connecting pipe 41 and the end of the hose 11. The cross-sectional diameter of the part where the rubber joint 42 connects to the connecting pipe 41 is larger than the cross-sectional diameter of the part where the rubber joint 42 connects to the hose 11. The first hose clamp 421 is used to tighten both the part where the rubber joint 42 connects to the connecting pipe 41 and the part where the rubber joint 42 connects to the hose 11. The rubber joint 42 ensures the connection between the hose 11 and the connecting pipe 41 and seals the end of the connecting pipe 41 located above the inner floating roof 31. This keeps the upper end of the hose 11 connected to the gas phase space above the inner floating roof 31, which facilitates subsequent monitoring of the pressure inside the hose 11.

[0057] Optionally, due to the nature of the aviation kerosene medium, the rubber joint 42 can be made of fluororubber, which has no effect on the aviation kerosene medium. The metal hose is fixed by the friction between the metal hose and the fluororubber to prevent sparks from being generated by friction between the metals.

[0058] Furthermore, after the first hose clamp 421 is tightened, the frictional force between the hose 11 and the rubber joint 42 is greater than the weight of the hose 11 suspended above the lower surface of the inner floating roof 31, and less than the downward resultant force experienced by the floating suction arm 32 when it is completely submerged after detaching from the inner floating roof 31. Therefore, when the floating suction arm 32 is not detached from the inner floating roof 31, or when there is no jamming or loosening, the frictional force between the hose 11 and the rubber joint 42 keeps the hose 11 stably installed on the connecting pipe 41. When the floating suction arm 32 detaches from the inner floating roof 31, it will be affected by its own weight and buoyancy, causing it to sink. At this time, the hose 11 needs to be disconnected from the connecting pipe 41 to ensure the normal operation of the floating oil delivery device. It can be understood that when the inner floating roof 31 jams, causing the floating suction arm 32 to detach from it, the floating suction arm 32 will sink downwards after detaching from the inner floating roof 31 to continue pumping fuel from the storage tank 200, ensuring the normal operation of the floating oil delivery device. If the hose 11 cannot be disconnected from the rubber joint 42 at this time, the floating suction arm 32 will always be connected to the inner floating top 31. As the liquid level drops, the oil suction port 321 of the floating suction arm 32 may be on the fuel liquid surface, and thus cannot draw fuel from the oil storage tank, which will cause the floating oil outlet device to fail to work.

[0059] In an optional embodiment, the condition monitoring device 100 further includes a plurality of fasteners 111 for securing the hose 11 to the floating suction arm 32.

[0060] Optionally, the fastener 111 can be a hose clamp, bolt, screw, etc., which ensures stability while being simple to operate and cost-effective. It should be noted that the above materials should preferably be stainless steel or aluminum alloy to avoid affecting the aviation kerosene medium.

[0061] Combination Figure 1 As shown, when the fixing member 111 is a stainless steel hose clamp, the hose 11 is arranged along the side wall of the floating suction arm 32, and the hose 11 is fixed to the floating suction arm 32 by the stainless steel hose clamp.

[0062] Combination Figure 2 As shown, among the multiple fixing members 111, the fixing member 111 closest to the inner floating roof 31 is located on the axis L of the connecting pipe 41, which facilitates the disengagement of the hose 11 from the rubber joint 42.

[0063] Furthermore, combined Figure 2As shown, the hose 11 has a first bend 112, which is located between the inner floating top 31 and the fixing member 111 near the inner floating top 31. When the floating oil outlet device 300 operates and outlets oil, turning on the oil pump will cause the floating oil outlet arm 32 to vibrate to a certain extent. Therefore, the first bend 112 prevents the floating oil outlet arm 32 from pulling on the hose 11 when it floats up and down, ensuring that the hose 11 remains stably connected to the connecting pipe 41 in its natural state.

[0064] Furthermore, along the axial direction of the connecting pipe 41, the extension distance of the first bend 112 is greater than or equal to the floating distance of the floating oil suction arm 32 when it floats. Optionally, combined with Figure 2 As shown, the first curved part 112 is spirally wound 0.5 turns with a winding diameter of 400mm. The winding diameter is related to the arrangement of the connecting pipe 12 and the floating oil suction arm 32, ensuring that it does not affect the operation of the floating oil discharge device.

[0065] In an alternative implementation, combined with Figure 1 and Figure 4 As shown, the floating oil outlet device 300 includes multiple floating oil suction arms 32, with the connection points of adjacent floating oil suction arms 32 remaining unobstructed to ensure that the floating oil suction arms 32 move up and down with the inner floating top 31, always extracting surface layer fuel. The hose 11 has a second bend 113 that is positioned opposite to the connection point of the adjacent floating oil suction arm.

[0066] The oil suction port 321 of the floating oil suction arm 32 floats up and down with the rise and fall of the liquid level, ensuring that the oil suction port 321 always draws surface oil. Therefore, as the fuel level drops, adjacent floating oil suction arms 32 will extend and retract relative to each other. The second bend 113 of the hose 11 on the floating oil suction arm 32 can meet the extension and retraction of the floating oil suction arm 32, ensuring a stable connection between the hose 11 and the connecting pipe 41 under normal operating conditions. That is, a certain length of hose 11 is reserved at the bend of the floating oil suction arm 32 to prevent the hose 11 from being pulled when the floating oil suction arm 32 moves up and down, and at the same time to prevent the hose 11 from affecting the up and down movement of the floating oil suction arm 32.

[0067] In an alternative implementation, combined with Figure 5As shown, the bottom side wall of the oil storage tank 200 is equipped with a floating oil outlet status detection port N2. A flow pipe 60 is located at the floating oil outlet status detection port N2, with one end connected to the hose 11 and the other end connected to a drain port N3. By opening the drain port N3 on-site, it is observed whether there is a continuous outflow of medium to help determine whether the floating oil outlet device has detached from the inner floating roof or sunk to the bottom of the oil tank. If there is a continuous outflow of medium, it is confirmed that the floating suction arm 32 has detached from the inner floating roof 31. It should be noted that the method of monitoring the operating status of the floating oil outlet device through the pressure monitoring instrument 50 and the method of monitoring the operating status of the floating oil outlet device through the medium outflow at the drain port can be used individually or in combination, depending on actual needs. Preferably, oil depot managers can understand the operating status of the floating oil outlet device on-site through the drain port during daily inspections, or they can monitor the operating status of the floating oil outlet device through pressure changes of the pressure monitoring instrument 50.

[0068] Furthermore, ball valves 61 are respectively installed on the pressure monitoring instrument 50 and the drain port N3 in the opposite direction of liquid flow. Combined with... Figure 5 As shown, in order to ensure the safety performance of the system, a ball valve 61 is usually installed before the liquid flows to the pressure monitoring instrument 50 and / or the drain port N3 for control and maintenance, and to control the flow of fuel.

[0069] This disclosure also proposes an oil storage device, which includes a condition monitoring device and an oil storage tank. The specific structure of the condition monitoring device is as described in the above embodiments. The oil storage tank includes a floating oil outlet device. The condition monitoring device cooperates with the floating oil outlet device to monitor the operating status of the floating oil outlet device. Since this condition monitoring device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0070] This disclosure also proposes an oil storage system, which includes an oil storage device. The specific structure of the oil storage device is as described in the above embodiments. Since this oil storage device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0071] The pressure monitoring instruments in the oil storage equipment include a second pressure display (not shown) and a pressure transmitter 52 for remotely monitoring the operating status of the floating oil outlet device. The pressure transmitter 52 is installed at the status detection port N2 of the floating oil outlet device and connected to the end of the hose 11 away from the inner floating roof 31. The second pressure display is installed in the control room and connected to the pressure transmitter. The pressure transmitter monitors the pressure changes in the hose 11 and transmits the pressure signal to the second pressure display in the control room. Therefore, oil depot managers can understand the operating status of the floating oil outlet device through the signal transmitted to the control room during daily inspections.

[0072] Optionally, the second pressure display can be a PLC (Programmable Controller) or a secondary instrument in the control room. When the hose 11 detaches from the inner floating roof 31 and falls to the bottom of the tank along with the floating suction arm 32, or becomes stuck in mid-air, the pressure inside the hose 11 is the hydrostatic pressure of the liquid column. The pressure transmitter connected to the other end of the hose 11 transmits this pressure signal to the PLC or secondary instrument in the control room to display the pressure, allowing for remote monitoring of the floating oil storage device's operation. Once the control room detects a significant change in the pressure signal, it can determine that the floating suction arm has detached from the inner floating roof or sunk to the bottom of the storage tank.

[0073] In this embodiment, while ensuring safety and economy, this system can enable oil depot managers to have a more comprehensive understanding of the floating oil dispensing device, and facilitate them in formulating timely countermeasures should any related problems arise.

[0074] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0075] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of protection of this specification.

Claims

1. A status monitoring device for use in conjunction with a floating oil outlet device within an oil storage tank, the floating oil outlet device comprising an inner floating roof and a floating oil suction arm connected to the inner floating roof, the floating oil suction arm being located below the inner floating roof, characterized in that, The status monitoring device includes: A hose is fixedly mounted on the floating oil suction arm and is adapted to the shape of the floating oil suction arm. One end of the hose passes through the inner floating top and communicates with the gas phase space above the inner floating top, so that when the floating oil suction arm is in normal working condition, the pressure inside the hose is the same as the gas pressure above the inner floating top, and after the floating oil suction arm is separated from the inner floating top, the hose is immersed in the liquid to generate hydrostatic pressure of the liquid column. A pressure monitoring instrument is connected to the other end of the hose. The pressure monitoring instrument is used to monitor the pressure changes inside the hose in order to monitor the operating status of the floating oil outlet device. The status monitoring device also includes a connection mechanism, which includes a connecting pipe and a rubber joint; The connecting pipe is fixed on the inner floating roof, with one end extending upward to the gas phase space above the inner floating roof and the other end extending downward to the liquid space below the inner floating roof. One end of the hose near the inner floating roof passes through the connecting pipe and communicates with the gas phase space above the inner floating roof. The rubber joint is fixedly installed on the outer wall of the connecting pipe and the hose along the axial direction of the connecting pipe. The frictional force between the hose and the rubber joint is greater than the weight of the hose suspended on the lower surface of the inner floating roof, and less than the downward resultant force on the floating oil suction arm when it is completely submerged after detaching from the inner floating roof.

2. The condition monitoring device according to claim 1, characterized in that, The cross-sectional diameter of the connecting pipe is larger than the cross-sectional diameter of the flexible tube; The rubber joint is a reducing rubber joint and is adapted to the shape of the end of the connecting pipe and the end of the hose, for sealing the end of the connecting pipe located above the inner floating roof.

3. The condition monitoring device according to claim 1, characterized in that, The status monitoring device also includes multiple fasteners for fixing the hose to the floating oil suction arm, wherein the fastener closest to the inner floating top is located on the axis of the connecting pipe.

4. The condition monitoring device according to claim 3, characterized in that, The hose has a first bend, which is located between the inner floating roof and the fixing member near the inner floating roof. Along the axis of the connecting pipe, the extension distance of the first bend is greater than or equal to the floating distance when the floating oil suction arm floats.

5. The condition monitoring device according to claim 1, characterized in that, The floating oil outlet device includes a plurality of the floating oil suction arms, and the hose has a second bend that is opposite to the connection position of the adjacent floating oil suction arm.

6. The condition monitoring device according to claim 1, characterized in that, A flow pipe is provided between the bottom of the side wall of the oil storage tank and the pressure monitoring instrument. One end of the flow pipe is connected to the hose, and the other end of the flow pipe is provided with a drain port.

7. The condition monitoring device according to claim 6, characterized in that, The pressure monitoring instrument and the drain outlet are respectively equipped with ball valves in the opposite direction of liquid flow.

8. The condition monitoring device according to claim 1, characterized in that, The oil storage tank and the hose are connected by a flange, and the flange is connected to an electrostatic jumper.

9. The condition monitoring device according to claim 1, characterized in that, The pressure monitoring instrument includes a first pressure display gauge.

10. An oil storage device, characterized in that, The invention includes the condition monitoring device and the oil storage tank as described in any one of claims 1 to 9, wherein the oil storage tank includes a floating oil outlet device, and the condition monitoring device cooperates with the floating oil outlet device to monitor the operating status of the floating oil outlet device.

11. An oil storage system, characterized in that, The oil storage device includes the oil storage device of claim 10, wherein the pressure monitoring instrument in the oil storage device includes a pressure transmitter and a second pressure display meter for remotely monitoring the operating status of the floating oil outlet device, and the second pressure display meter is connected to the pressure transmitter.

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