Anti-layering device and anti-layering method for kerosene storage tank

Abstract

The invention discloses a kerosene storage tank anti-layering device and an anti-layering method, and relates to the field of kerosene storage tanks, the kerosene storage tank anti-layering device comprises a stirring device, a temperature sensor and a controller, the stirring device is arranged in the middle of the kerosene storage tank, the stirring device is used for stirring layered kerosene in the kerosene storage tank, and the temperature sensor is connected with the controller; the two sets of temperature sensors are arranged on the upper portion and the lower portion of the kerosene storage tank respectively, the controller is arranged on the kerosene storage tank and electrically connected with the stirring device and the temperature sensors respectively, and when the temperature sensors detect that the temperature difference is larger than a preset threshold value, the stirring device works. The problem of temperature stratification in the kerosene storage tank is effectively solved, the temperature difference between the upper layer and the lower layer is monitored in real time through the temperature sensor, starting and stopping of the stirring device are accurately controlled, it is ensured that kerosene is evenly mixed in the storage tank, and the working stability and reliability of a rocket engine are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of kerosene storage tanks, and more particularly to a kerosene storage tank anti-stratification device and anti-stratification method. Background Art

[0002] In the aerospace field, kerosene is the main fuel for rocket engines, and is favored for its high thrust, environmental protection, easy storage and transportation, and high economy. Kerosene also has good specific impulse performance, cooling characteristics, flow resistance performance and combustion characteristics, which make it an ideal fuel for high-thrust heavy-lift liquid rocket engines.

[0003] In order to achieve the best combustion efficiency, the temperature of kerosene must be precisely controlled between 10 and 15 degrees Celsius. Temperature control has a direct impact on the physical properties of kerosene, such as density and viscosity, which are directly related to the combustion efficiency of kerosene. Due to the large temperature change before and after kerosene temperature adjustment, there is a difference in density. The colder kerosene in the storage tank has a higher density and will sink to the bottom; the hotter kerosene has a lower density and will float to the top, thus forming a layer. If the kerosene stratification phenomenon is serious, it may cause the temperature and density of different batches of kerosene to be inconsistent during the filling process, affecting the uniformity and accuracy of the filling.

[0004] In summary, how to avoid kerosene stratification in a storage tank is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a kerosene storage tank anti-stratification device and anti-stratification method, which can effectively avoid the stratification phenomenon of kerosene in the storage tank and ensure the uniformity and accuracy of the filling process.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A kerosene storage tank anti-stratification device and anti-stratification method, comprising:

[0008] A stirring device, the stirring device is arranged in the middle of the kerosene storage tank, and the stirring device is used to stir the layered kerosene in the kerosene storage tank;

[0009] There are two sets of temperature sensors, which are respectively arranged at the upper and lower parts of the kerosene storage tank;

[0010] A controller is arranged on the kerosene storage tank, and the controller is electrically connected to the stirring device and the temperature sensor respectively. When the temperature sensor detects that the temperature difference is greater than a preset threshold, the stirring device is operated.

[0011] Preferably, the stirring device includes a plurality of stirring paddles arranged in the middle of the kerosene storage tank, and a plurality of rotating motors are arranged on the kerosene storage tank, and the output ends of the plurality of rotating motors are respectively connected to the shafts of the plurality of stirring paddles to rotate the plurality of stirring paddles.

[0012] Preferably, a plurality of air holes are formed on the surface of each impeller blade, and each of the air holes is connected to a nitrogen storage tank disposed on the kerosene storage tank.

[0013] Preferably, the stirring paddle includes a main shaft, blades and a support frame, the main shaft is fixed to the wall of the kerosene storage tank through a sealed bearing, the blades are spirally distributed around the main shaft, and the support frame is fixed to the middle of the main shaft.

[0014] Preferably, the sealed bearing is a double-lip sealing ring.

[0015] Preferably, a plurality of guide plates are arranged in the kerosene storage tank in the circumferential direction of the stirring paddle, and a gap is formed between the guide plates and the stirring paddle.

[0016] Preferably, the guide plate is a curved stainless steel plate.

[0017] Preferably, an ultrasonic generator is provided on the kerosene storage tank to generate ultrasonic oscillations in the kerosene storage tank.

[0018] Preferably, the ultrasonic generator is electrically connected to the controller so that the controller controls the ultrasonic generator and the stirring device to start and stop synchronously.

[0019] A kerosene storage tank anti-stratification method is applied to any of the above-mentioned kerosene storage tank anti-stratification devices, and the anti-stratification method comprises:

[0020] Control the temperature sensor to monitor the temperatures of the upper and lower parts of the kerosene storage tank in real time, and transmit the temperature difference between the two parts to the controller in real time;

[0021] The controller determines the temperature difference between the two parts of the kerosene storage tank, and when the temperature difference is greater than 0.5°C, starts the stirring device to stir the kerosene storage tank, and when the temperature difference decreases from greater than 0.5°C to less than 0.5°C, controls the stirring device to stop.

[0022] The kerosene storage tank anti-stratification device and anti-stratification method provided by the present invention effectively solve the temperature stratification problem in the kerosene storage tank, monitor the temperature difference between the upper and lower layers in real time through the temperature sensor, and accurately control the start and stop of the stirring device to ensure that the kerosene is evenly mixed in the storage tank, thereby improving the stability and reliability of the rocket engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the anti-stratification device for kerosene storage tanks.

[0025] Figure 1 , the reference numerals include:

[0026] 1. Kerosene storage tank; 2. Agitator paddle; 3. Guide plate; 4. Temperature sensor. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Unless otherwise defined, the technical terms or scientific terms used in the disclosure of this application shall have the usual meanings understood by persons with ordinary skills in the field to which the invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly. The embodiments of the present application disclose a kerosene storage tank anti-stratification device and an anti-stratification method.

[0029] The core of the invention is to provide a kerosene storage tank anti-stratification device and anti-stratification method.

[0030] Please refer to Figure 1 .

[0031] The kerosene storage tank anti-stratification device provided by the present invention includes a stirring device, a temperature sensor and a controller. The stirring device is arranged in the middle of the kerosene storage tank 1, and is used to stir the stratified kerosene in the kerosene storage tank 1. There are two groups of temperature sensors, which are respectively arranged in the upper and lower parts of the kerosene storage tank 1. The controller is arranged on the kerosene storage tank 1, and the controller is electrically connected to the stirring device and the temperature sensor respectively. When the temperature sensor detects that the temperature difference is greater than a preset threshold, the stirring device is operated.

[0032] Specifically, the stirring device is arranged in the middle of the kerosene storage tank 1. Such a layout ensures that all areas in the storage tank can be covered during stirring, and the kerosene in both the upper and lower layers can be effectively stirred to achieve uniform mixing. The start and stop of the stirring device are controlled by the controller according to the signal of the temperature sensor 4. In order to monitor the temperature difference between the upper and lower layers in the kerosene storage tank, we set a set of temperature sensors 4 in the upper and lower parts of the kerosene storage tank respectively. These two sets of sensors can collect temperature data at different positions in the kerosene storage tank 1 in real time, and transmit these data to the controller for processing. As the control center of the device, the controller presets a temperature difference threshold. When the temperature difference between the upper and lower layers detected by the temperature sensor 4 exceeds this preset threshold, the controller will issue a command to start the stirring device for stirring. The stirring process will continue until the temperature difference returns to within the preset threshold, at which time the controller will issue a command again to stop the stirring device.

[0033] Optionally, each group of temperature sensors 4 is provided with multiple temperature sensors 4, and each temperature sensor 4 is evenly arranged along the depth direction of the kerosene storage tank 1, so that the kerosene storage tank 1 is divided into multiple temperature layers along the depth direction, and each temperature sensor 4 corresponds to the temperature of one of the layers. In the process of temperature difference judgment, when the temperature difference between any two temperature sensors 4 is greater than 0.5°C, the stirring device is controlled by the controller to start. This arrangement of temperature sensors 4 can capture the temperature changes at each depth level in the kerosene storage tank, thereby more carefully reflecting the temperature distribution of kerosene in the storage tank. By dividing the kerosene storage tank into multiple temperature layers along the depth direction, and each temperature sensor corresponding to monitoring the temperature changes of a temperature layer, it can be more accurately determined whether there is temperature stratification of kerosene.

[0034] The above-mentioned kerosene storage tank anti-stratification device effectively solves the temperature stratification problem in the kerosene storage tank 1. It monitors the temperature difference between the upper and lower layers in real time through the temperature sensor, and accurately controls the start and stop of the stirring device to ensure that the kerosene is evenly mixed in the storage tank, thereby improving the stability and reliability of the rocket engine.

[0035] The kerosene storage tank anti-stratification device and anti-stratification method provided by the present invention are introduced in more detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] In a specific embodiment, the stirring device includes a plurality of stirring paddles 2 arranged in the middle of the kerosene storage tank 1, and a plurality of rotating motors are arranged on the kerosene storage tank 1. The output ends of the plurality of rotating motors are respectively connected to the shafts of the plurality of stirring paddles 2 to rotate the plurality of stirring paddles 2.

[0037] Specifically, the stirring device includes a plurality of stirring paddles 2 arranged in the middle of the kerosene storage tank 1, and these stirring paddles 2 are evenly distributed to ensure that all areas in the storage tank can be covered during stirring. A plurality of rotating motors matching the number of stirring paddles are arranged on the top or side wall of the kerosene storage tank 1. The output end of each rotating motor is firmly connected to the shaft of the corresponding stirring paddle 2 through a transmission device (such as a reducer or a directly connected coupling) to ensure that the stirring paddle can be driven to rotate synchronously when the motor rotates. When the controller determines that there is a temperature stratification phenomenon in the kerosene storage tank 1 based on the data of the temperature sensor 4, a start signal will be sent to the corresponding rotating motor. After receiving the signal, the rotating motor will start working and drive the stirring paddle 2 to rotate. The stirring paddle 2 will generate strong shear force and eddy current during the rotation process, thereby effectively mixing the kerosene from all directions and breaking the temperature stratification phenomenon.

[0038] Furthermore, in order to improve the stirring efficiency and mixing uniformity, the rotation directions of the multiple stirring paddles 2 can be set to be opposite or the same, and the rotation speed can also be adjusted as needed. In addition, the shape and size of the stirring paddle 2 can also be customized according to the specifications of the kerosene storage tank 1 and the characteristics of the kerosene to achieve the best stirring effect. During the stirring process, the controller will continuously monitor the data of the temperature sensor 4 and adjust the speed and stirring time of the rotating motor according to the actual situation. When the data of the temperature sensor 4 shows that the temperature distribution in the kerosene storage tank reaches a uniform state, the controller will issue an instruction to stop the operation of the rotating motor, thereby completing a stirring operation.

[0039] On the basis of any one of the above embodiments, a plurality of air holes are formed on the surface of the blade of each stirring paddle 2 , and each air hole is connected to a nitrogen storage tank disposed on the kerosene storage tank 1 .

[0040] Specifically, when the stirring paddle 2 starts working, the nitrogen in the nitrogen storage tank will be transported to the blade pores of each stirring paddle 2 via the pipeline system. These pores are evenly distributed on the surface of the blade to ensure that the nitrogen can be fully and evenly released into the kerosene. As the stirring paddle 2 rotates, nitrogen sprays out of the pores to form tiny bubbles. As these bubbles rise in the kerosene, they will drive the surrounding kerosene to move together, thereby enhancing the stirring effect. At the same time, the rise and rupture of the bubbles will also release energy, further promoting the mixing of kerosene. The introduction of nitrogen not only helps to mix the kerosene evenly, but also slows down its oxidation process by reducing the oxygen content in the kerosene. This can effectively improve the storage stability and service life of kerosene.

[0041] Optionally, through the precise control of the nitrogen release amount by the controller, we can adjust the nitrogen supply speed according to actual needs to meet the needs of different mixing stages. This flexible control method makes the mixing process more efficient and reliable.

[0042] Based on any of the above embodiments, the stirring paddle 2 includes a main shaft, blades and a support frame. The main shaft is fixed on the wall of the kerosene storage tank 1 through a sealed bearing, the blades are spirally distributed around the main shaft, and the support frame is fixed in the middle of the main shaft.

[0043] Specifically, the stirring paddle 2 is mainly composed of three parts: a main shaft, a blade and a support frame. The main shaft is the core component of the stirring paddle 2. One end of the main shaft passes through the sealed bearing on the wall of the kerosene storage tank 1 and is firmly fixed to ensure the stability and reliability of the stirring paddle 2 during the rotation process. The other end is connected to an external rotating motor to drive the rotation of the stirring paddle 2 by transmitting torque. The blades are the main part of the stirring paddle 2 for stirring operations, and they are distributed around the main shaft in a spiral shape. This spiral design not only helps to enhance the stirring effect, but also allows the kerosene to form a certain vortex during the stirring process, further improving the mixing uniformity. The number and shape of the blades can be adjusted according to actual needs to adapt to kerosene storage tanks 1 of different specifications and types. The support frame is fixed to the middle of the main shaft to support and fix the blades. The design of the support frame should be strong enough to ensure that it can withstand the force and torque generated by the blades and kerosene during the stirring process. At the same time, the shape and size of the support frame also need to match the blades to ensure the coordination and stability of the entire stirring paddle.

[0044] Optionally, the sealing bearing is a double-lip seal. The double-lip seal forms a unique sealing effect through the relative position of its two lips, which can effectively prevent kerosene from leaking from the storage tank and ensure the stable operation of the stirring system. The lips of the double-lip seal are made of elastic material and have good wear resistance. During long-term operation, even if the lips are worn to a certain extent, a stable sealing effect can be maintained.

[0045] In a specific embodiment provided in the present application, a plurality of guide plates 3 are arranged in the kerosene storage tank 1 in the circumferential direction of the stirring paddle 2 , and a gap is formed between the guide plates 3 and the stirring paddle 2 .

[0046] Specifically, a plurality of guide plates 3 are arranged around the circumference of the stirring paddle 2 in the kerosene storage tank 1. These guide plates 3 not only enhance the flow effect of kerosene in the storage tank, but also further optimize the working efficiency of the stirring paddle 2. The guide plates 3 are designed to maintain a certain gap with the stirring paddle 2. This gap ensures that the stirring paddle 2 will not collide or rub with the guide plates 3 when rotating, thereby ensuring the smooth progress of the stirring process. At the same time, this gap also allows the kerosene to freely pass through the guide plates 3 under the action of the stirring paddle 2, forming a more complex flow pattern, which helps to improve the uniformity and efficiency of the stirring. The guide plates 3 are evenly distributed around the stirring paddle 2, forming channels for guiding the flow of kerosene. These channels not only help the kerosene to form a more uniform vortex during the stirring process, but also promote the overall circulation of kerosene in the storage tank, ensuring that all parts of the kerosene can be fully stirred and mixed. When the stirring paddle 2 starts to rotate, the kerosene is rapidly stirred under the action of the stirring paddle 2. At the same time, the presence of the guide plates 3 makes the flow of kerosene in the storage tank more orderly and efficient. Under the combined action of the stirring blade 2 and the guide plate 3, the kerosene forms a complex vortex and circulation flow, thereby achieving more uniform mixing.

[0047] Optionally, the guide plate 3 is a curved stainless steel plate. The curved design enables the guide plate 3 to better guide the flow of kerosene, reduce flow resistance, and increase the smoothness and efficiency of the flow. The stainless steel material gives the guide plate 3 excellent corrosion resistance and mechanical strength, ensuring that it can operate stably for a long time in the kerosene storage environment without being easily damaged or deformed. In addition, the curved stainless steel guide plate 3 is easy to clean and maintain, which is very important for maintaining the hygiene of the kerosene storage tank and preventing pollution. Its smooth surface is not easy to accumulate impurities or residues, which helps to reduce the frequency and difficulty of cleaning work.

[0048] On the basis of any of the above embodiments, an ultrasonic generator is provided on the kerosene storage tank 1 to generate ultrasonic oscillations in the kerosene storage tank 1 .

[0049] Specifically, an ultrasonic generator is added to the top or side wall of the kerosene storage tank 1, and the ultrasonic oscillation effect is used to further improve the mixing uniformity of kerosene in the storage tank, and may help prevent the occurrence of kerosene stratification. The ultrasonic generator can emit high-frequency ultrasonic beams into the kerosene storage tank 1. When these beams propagate in the kerosene, they will produce strong microjets, cavitation effects and shear forces, thereby effectively breaking up the tiny clumps and stratified structures in the kerosene and promoting the uniform distribution of kerosene molecules. Ultrasonic oscillations can not only enhance the mixing effect of kerosene, but also disperse and suspend impurities and sediments in the kerosene. This helps to reduce the deposition and scaling of kerosene during storage, keep the inside of the storage tank clean and the quality of kerosene stable. In addition, ultrasonic oscillations may also inhibit the growth of microorganisms in kerosene, thereby improving the biological stability of kerosene.

[0050] Furthermore, the ultrasonic generator is electrically connected to the controller so that the controller controls the ultrasonic generator and the stirring device to start and stop synchronously.

[0051] Specifically, the controller, as the center of the kerosene tank anti-stratification device, is responsible for receiving signals from the temperature sensor 4 and controlling according to the specific value of the temperature difference. When the controller detects that the temperature in the kerosene tank is greater than 0.5°C, it will send a start command to the stirring device and the ultrasonic generator at the same time. After receiving the start command, the stirring device and the ultrasonic generator will immediately start to rotate, and the stirring paddle will stir in the kerosene to promote the mixing of the kerosene. At the same time, the ultrasonic generator emits a high-frequency ultrasonic beam into the kerosene tank to produce an ultrasonic oscillation effect. This synchronous start-up method ensures that stirring and ultrasonic oscillation can act on the kerosene at the same time, thereby more effectively improving the mixing uniformity of the kerosene and preventing the occurrence of stratification. When the temperature difference or other conditions in the kerosene tank return to the preset range, the controller will send a stop command to the stirring device and the ultrasonic generator at the same time. At this time, the stirring device and the ultrasonic generator will stop working immediately, thereby avoiding unnecessary energy consumption and wear.

[0052] The anti-stratification method for kerosene storage tanks provided by the present invention is applied to the above-mentioned anti-stratification device for kerosene storage tanks. The anti-stratification method comprises:

[0053] The control temperature sensor monitors the temperature of the upper and lower parts of the kerosene storage tank 1 in real time, and transmits the temperature difference between the two parts to the controller in real time;

[0054] The controller determines the temperature difference between the two parts in the kerosene storage tank 1. When the temperature difference is greater than 0.5°C, the stirring device is started to stir the kerosene storage tank 1. When the temperature difference decreases from greater than 0.5°C to less than 0.5°C, the stirring device is controlled to stop.

[0055] Specifically, the kerosene storage tank 1 is divided into multiple temperature layers along the depth direction by means of multiple temperature sensors 4. Each temperature layer is provided with a corresponding temperature sensor 4 for real-time temperature monitoring. The controller receives the detected temperatures of the multiple temperature sensors 4, and respectively makes a difference between the temperatures of each two temperature sensors 4, and judges the difference. When the temperature difference is greater than 0.5°C, the stirring device is started to stir the kerosene storage tank 1. The stirring device mixes the upper and lower parts of the kerosene by rotating the stirring paddle. At the same time, the kerosene forms a complex vortex and circulation flow under the joint action of the stirring paddle 2 and the guide plate 3, thereby eliminating the temperature difference and improving the uniformity of the kerosene, until the temperature difference sent back by the temperature sensor 4 gradually decreases to below 0.5°C. At this time, the temperature distribution inside the kerosene has become uniform, and the stratification phenomenon is effectively alleviated. At this time, the controller will control the stirring device to stop working.

[0056] The above-mentioned kerosene storage tank anti-stratification method realizes effective prevention of kerosene stratification by real-time monitoring of the temperature difference in the kerosene storage tank and controlling the start and stop of the stirring device according to the change of the temperature difference. This method not only improves the storage quality of kerosene, but also reduces energy consumption and operating costs, providing a more reliable and efficient solution for kerosene storage. It effectively solves the stratification problem that may occur in the storage process of kerosene and ensures the quality and stability of kerosene.

[0057] In a specific embodiment, the anti-stratification method further includes, during the process of the controller controlling the stirring device to work, synchronously controlling the nitrogen in the nitrogen storage tank to be transported to the kerosene storage tank 1 through the pores. As the stirring paddle 2 rotates, the nitrogen is ejected from the pores to form tiny bubbles. As these bubbles rise in the kerosene, they drive the surrounding kerosene to move together, thereby enhancing the stirring effect.

[0058] In a specific embodiment, the anti-stratification method further includes that when the temperature difference is greater than 0.5°C, the controller synchronously controls the ultrasonic generator to start, and the ultrasonic generator can emit high-frequency ultrasonic beams into the kerosene storage tank 1. When these beams propagate in the kerosene, strong micro-jets, cavitation effects and shear forces are generated, thereby effectively breaking up the tiny clumps and stratified structures in the kerosene and promoting the uniform distribution of kerosene molecules.

[0059] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0060] The above is a detailed introduction to a kerosene storage tank anti-stratification device and anti-stratification method provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A kerosene storage tank anti-stratification device, characterized in that: include: A stirring device, the stirring device being arranged in the middle of the kerosene storage tank (1), and the stirring device being used to stir the layered kerosene in the kerosene storage tank (1); Two groups of temperature sensors are provided, and are respectively arranged at the upper and lower parts of the kerosene storage tank (1); A controller is arranged on the kerosene storage tank (1), and the controller is electrically connected to the stirring device and the temperature sensor respectively. When the temperature sensor detects that the temperature difference is greater than a preset threshold value, the stirring device is operated.

2. A kerosene storage tank anti-stratification device according to claim 1, characterized in that: The stirring device comprises a plurality of stirring paddles (2) arranged in the middle of the kerosene storage tank (1), and a plurality of rotating motors are arranged on the kerosene storage tank (1). The output ends of the plurality of rotating motors are respectively connected to the shafts of the plurality of stirring paddles (2) so that the plurality of stirring paddles (2) rotate.

3. A kerosene storage tank anti-stratification device according to claim 2, characterized in that: A plurality of air holes are provided on the surface of the blade of each stirring paddle (2), and each of the air holes is connected to a nitrogen storage tank arranged on the kerosene storage tank (1).

4. A kerosene storage tank anti-stratification device according to claim 2, characterized in that: The stirring paddle (2) comprises a main shaft, blades and a support frame, the main shaft is fixed to the wall of the kerosene storage tank (1) through a sealed bearing, the blades are distributed around the main shaft in a spiral shape, and the support frame is fixed to the middle of the main shaft.

5. A kerosene storage tank anti-stratification device according to claim 4, characterized in that: The sealed bearing is a double-lip sealing ring.

6. A kerosene storage tank anti-stratification device according to claim 2, characterized in that: A plurality of guide plates (3) are arranged in the kerosene storage tank (1) in the circumferential direction of the stirring blade (2), and a gap is formed between the guide plates (3) and the stirring blade (2).

7. A kerosene storage tank anti-stratification device according to claim 6, characterized in that: The guide plate (3) is a curved stainless steel plate.

8. A kerosene storage tank anti-stratification device according to any one of claims 1 to 7, characterized in that: The kerosene storage tank (1) is provided with an ultrasonic generator to generate ultrasonic oscillations in the kerosene storage tank (1).

9. The anti-stratification device for kerosene storage tanks according to claim 8, characterized in that: The ultrasonic generator is electrically connected to the controller so that the controller controls the ultrasonic generator and the stirring device to start and stop synchronously.

10. A method for preventing stratification of a kerosene storage tank, characterized in that: Applicable to the kerosene storage tank anti-stratification device according to any one of claims 1 to 9, the anti-stratification method comprises: Controlling the temperature sensor to monitor the temperatures of the upper and lower parts of the kerosene storage tank (1) in real time, and transmitting the temperature difference between the two parts to the controller in real time; The controller determines the temperature difference between two parts of the kerosene storage tank (1), and when the temperature difference is greater than 0.5°C, starts the stirring device to stir the kerosene storage tank (1); when the temperature difference decreases from greater than 0.5°C to less than 0.5°C, controls the stirring device to stop.

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