Novel vertical constant-temperature oil tank device

Abstract

The invention belongs to the technical field of petroleum storage, and particularly relates to a novel vertical constant-temperature oil tank device which comprises a bottom plate and a vertical oil pipe. The cooling assembly comprises a spiral heat conduction pipe arranged on the surface of the vertical oil pipe in a sleeving mode, a plate heat exchanger used for cooling the vertical oil pipe by injecting water into the spiral heat conduction pipe, a liquid inlet box, a mixing box, a connecting pipe and an output pipe, and a mixing assembly is arranged in the mixing box; the mixing assembly comprises a stirring rod arranged in the mixing box, a spiral blade for driving the stirring rod to rotate to stir and mix water in the mixing box, a rotating shaft, a bevel gear I, a stirring shaft and a bevel gear II; the temperature of oil in the oil tank is constant through the circulating water temperature, the oil gas volatilization amount is greatly reduced, and therefore the service time of an oil gas recovery system is saved, the equipment operation cost is reduced, and the production cost is saved for enterprises.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum storage, and in particular relates to a novel vertical constant temperature oil tank device. Background Art

[0002] Light oil is a light oil product produced by the initial processing of crude oil. It is mainly composed of low molecular weight alkanes, cycloalkanes and aromatic hydrocarbons. The unique composition gives light oil the characteristics of low viscosity, high flash point and high volatility. In the vast field of industrial production and daily consumption, light oil occupies a pivotal position. For the petrochemical industry, light oil is the core raw material for the production of key petroleum products such as gasoline, diesel, and naphtha. These downstream products deeply meet the needs of transportation and energy supply, and are an indispensable energy foundation for the operation of modern society.

[0003] Traditional light oil storage technology has obvious shortcomings in temperature control. Currently, oil tanks only use simple insulation measures. Faced with high temperatures in summer, it is difficult to effectively maintain a stable temperature inside the tank, and it is impossible to fundamentally solve the evaporation loss and safety hazards caused by temperature fluctuations.

[0004] Therefore, a new type of vertical constant temperature oil tank device is designed to solve the above problems. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a novel vertical constant temperature oil tank device, which can effectively solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a novel vertical constant temperature oil tank device, comprising a bottom plate and a vertical oil pipe;

[0007] The surface of the vertical oil pipe is provided with a cooling component, which includes a spiral heat pipe sleeved on the surface of the vertical oil pipe and a plate heat exchanger, a liquid inlet box, a mixing box, a connecting pipe and an outlet pipe for cooling the vertical oil pipe by injecting water into the spiral heat pipe;

[0008] A mixing assembly is arranged inside the mixing box, and the mixing assembly includes a stirring rod arranged inside the mixing box and a spiral blade, a rotating shaft, a first bevel gear, a stirring shaft and a second bevel gear for driving the stirring rod to rotate and stir and mix the water inside the mixing box;

[0009] A liquid inlet assembly is arranged inside the liquid inlet box, and a liquid discharge assembly is arranged inside the output pipe.

[0010] Preferably, in a novel vertical constant-temperature oil tank device of the present invention, a plate heat exchanger is installed on the upper surface of the bottom plate. A liquid inlet tank and a mixing tank are fixedly connected to the upper surface of the bottom plate. The vertical oil pipe is located between the liquid inlet tank and the mixing tank. A connecting pipe is installed at the hot fluid outlet of the plate heat exchanger. The connecting pipe is inserted into one side of the liquid inlet tank away from the vertical oil pipe. One end of the spiral heat conduction pipe is fixedly connected to one side of the liquid inlet tank. The other end of the spiral heat conduction pipe is inserted into the surface of the mixing tank and extends into the interior of the mixing tank. A diversion hole communicating with the inside of the spiral heat conduction pipe is opened on one side of the liquid inlet tank.

[0011] Preferably, in a novel vertical constant-temperature oil tank device of the present invention, a connecting pipe is fixedly inserted into one side of the mixing tank away from the vertical oil pipe. The connecting pipe communicates with the inside of the mixing tank. An output pipe is fixedly sleeved on the surface of the connecting pipe.

[0012] Preferably, in a novel vertical constant-temperature oil tank device of the present invention, a sealing piston is inserted into the liquid inlet tank. The liquid inlet tank and the sealing piston are in sealed sliding connection. A longitudinal pipe is fixedly connected to the upper surface of the sealing piston. Air holes are opened at the bottom end of the longitudinal pipe. The longitudinal pipe longitudinally penetrates through a sliding hole opened on the upper surface of the liquid inlet tank. The longitudinal pipe is in sliding connection with the liquid inlet tank. A retaining ring is fixedly sleeved on the surface of the longitudinal pipe. The retaining ring is located above the liquid inlet tank.

[0013] Preferably, in a novel vertical constant-temperature oil tank device of the present invention, a rotating shaft is arranged inside the connecting pipe. A spiral blade is fixedly sleeved on the surface of the rotating shaft. The spiral blade fits against the inner wall of the connecting pipe.

[0014] Preferably, in a novel vertical constant-temperature oil tank device of the present invention, a bearing one is sleeved on the surface of the rotating shaft. A round shaft is fixedly connected to the outer surface of the outer ring of the bearing one. One end of the round shaft away from the bearing one is fixedly connected to the connecting pipe. The rotating shaft is rotationally connected to the round shaft through the bearing one.

[0015] Preferably, in a novel vertical constant-temperature oil tank device of the present invention, a bearing two is installed inside the mixing tank. A stirring shaft is inserted into the bearing two. The stirring shaft is rotationally connected to the mixing tank through the bearing two. Stirring rods are fixedly connected to the surface of the stirring shaft. A bevel gear two is fixedly connected to the top end of the stirring shaft. A bevel gear one is meshed with the surface of the bevel gear two. One end of the rotating shaft is fixedly connected to the bevel gear one.

[0016] Preferably, as a novel vertical constant-temperature oil tank device of the present invention, the liquid inlet assembly includes a rubber ball, a positioning ring, a connecting rod and a second spring. The positioning ring, the connecting rod and the rubber ball are arranged inside the diversion hole. The positioning ring and the connecting rod are both fixedly connected to the liquid inlet tank. A second spring is arranged inside the positioning ring. Two ends of the second spring are respectively fixedly connected to the connecting rod and the rubber ball.

[0017] Preferably, as a novel vertical constant-temperature oil tank device of the present invention, the liquid discharge assembly includes a first spring and an inner plate. The inner plate is arranged inside the mixing tank. One end of the spiral heat-conducting tube is located in the mixing tank and is in contact with one side of the inner plate. One end of the inner plate away from the spiral heat-conducting tube is fixedly connected to a first spring. The other end of the first spring is fixedly connected to the mixing tank.

[0018] Preferably, as a novel vertical constant-temperature oil tank device of the present invention, a rectangular sleeve is fixedly connected inside the mixing tank. An inner sliding rod is inserted into the rectangular sleeve. The rectangular sleeve and the inner sliding rod are slidably connected. One end of the inner sliding rod is fixedly connected to the inner plate.

[0019] Preferably, during the operation of the system, the following temperature control algorithm is adopted to regulate the circulating water temperature to maintain the constant temperature of the vertical oil pipe. The algorithm includes the following steps:

[0020] a. Collect the initial water temperature T1 in the liquid inlet tank (32) and the water temperature T2 flowing out of the mixing tank (34);

[0021] b. Compare T1 with the set target temperature T0. If T1>T0, adjust the flow rate Vc of the cold fluid in the plate heat exchanger (31) to improve the heat exchange efficiency. If T1<T0, reduce Vc to avoid excessive cooling;

[0022] c. Collect the outlet pressure P of the spiral heat-conducting tubes (33) at each height in the mixing tank (34) in real time n and establish the pressure difference ΔP of each branch based on the Bernoulli equation n as the input signal, and adjust the opening degrees of the diversion hole (313) and the positioning ring (52) through the servo mechanism to achieve the consistency control of the flow rates of the heat-conducting tubes at different heights;

[0023] d. Compare the actual outlet water temperature T2 in the mixing tank (34) with the target return temperature T0, and automatically adjust the rotation speed n of the stirring shaft of the mixing assembly (6) according to the deviation between T2 and T0 to ensure the full mixing of water at different temperatures and output a constant-temperature water flow;

[0024] e. The temperature control adjustment process is closed-loop controlled by an embedded controller, and the Vc and ΔP are adjusted through the PID adjustment algorithm nThe three parameters of [parameter names not provided] are adjusted in real time to maintain the temperature fluctuation of the oil product in the oil tank within ±1°C.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is scientifically reasonable, and it is safe and convenient to use:

[0026] 1. A cooling component is provided. The vertical oil pipe is sleeved with a spiral heat conduction pipe, and the temperature of water is adjusted by a plate heat exchanger. The water circulates in the spiral heat conduction pipe, continuously and stably taking away the heat on the surface of the vertical oil pipe, maintaining the relatively constant temperature of the light oil in the oil tank, reducing the storage evaporation loss caused by temperature fluctuation, and reducing the operation risk of the storage tank;

[0027] Multiple spiral heat conduction pipes are distributed along the height direction of the vertical oil pipe to ensure comprehensive cooling of the vertical oil pipe and improve the cooling efficiency.

[0028] 2. A liquid discharge component is provided. Under the action of the water pressure at the outlets of the spiral heat conduction pipes at different heights, the inner plate moves against the elastic force of spring one, driving the inner sliding rod to slide, thereby adjusting the flow rate of water flowing into the mixing box in the spiral heat conduction pipes at different heights, narrowing the flow rate gap, making the water enter the mixing box evenly, ensuring the reasonable flow of water in the system, and improving the overall cooling stability.

[0029] 3. A liquid inlet component is provided. When the pressure in the liquid inlet box reaches a certain level, the water overcomes the elastic force of spring two, pushes open the rubber ball, and flows into the spiral heat conduction pipe along the positioning ring. The aperture sizes of multiple positioning rings gradually decrease from top to bottom, precisely adjusting the liquid inlet volume of the spiral heat conduction pipes at different heights, making the water flow rates in each pipe tend to be the same, ensuring uniform water distribution, and improving the uniformity and stability of cooling the vertical oil pipe.

[0030] 4. A mixing component is provided. The water flow in the mixing box drives the spiral blades to rotate. Through the transmission of the rotating shaft, bevel gear one, and bevel gear two, the stirring shaft drives the stirring rod to rotate, quickly mixing the water at different temperatures flowing into the mixing box from the spiral heat conduction pipes at different heights, ensuring uniform temperature of the outflowing water, providing a stable temperature for the recycled water, and helping to maintain the stability of the cooling process of the vertical oil pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0032] Figure 1 is the overall structural schematic diagram of the present invention;

[0033] Figure 2 For the present invention Figure 1 is the cross-sectional view taken along line A-A in

[0034] Figure 3 For the present inventionFigure 2 Enlarged view at location A;

[0035] Figure 4 For the present invention Figure 2 Enlarged view at location B;

[0036] Figure 5 For the present invention Figure 2 Enlarged view at location C;

[0037] Figure 6 Schematic structural view of the connecting pipe and the rotating shaft in the present invention;

[0038] Figure 7 Schematic structural view of the rotating shaft and the spiral blade in the present invention;

[0039] Figure 8 Schematic structural view of the spiral heat conduction pipe and the built-in plate in the present invention;

[0040] Figure 9 Schematic structural view of the first spring and the built-in plate in the present invention;

[0041] Figure 10 Schematic structural view of the spiral heat conduction pipe in the present invention;

[0042] In the figure:

[0043] 1, bottom plate; 2, vertical oil pipe;

[0044] 3, cooling component; 31, plate heat exchanger; 32, liquid inlet tank; 33, spiral heat conduction pipe; 34, mixing tank; 35, output pipe; 36, connecting pipe; 37, longitudinal pipe; 38, air hole; 39, sealing piston; 310, retaining ring; 311, sliding hole; 312, connecting pipe; 313, diversion hole;

[0045] 4, liquid discharge component; 41, first spring; 42, built-in plate; 43, rectangular sleeve; 44, built-in sliding rod;

[0046] 5, liquid inlet component; 51, rubber ball; 52, positioning ring; 53, connecting rod; 54, second spring;

[0047] 6, mixing component; 61, spiral blade; 62, rotating shaft; 63, first bearing; 64, round shaft; 65, first bevel gear; 66, second bevel gear; 67, stirring rod; 68, second bearing; 69, stirring shaft. Detailed implementation manner

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] Embodiment: As Figures 1 - 10 shown, the present invention provides a technical solution, a new type of vertical constant-temperature oil tank device, including a bottom plate 1 and a vertical oil pipe 2;

[0050] A cooling component 3 is arranged on the surface of the vertical oil pipe 2. The cooling component 3 includes a spiral heat-conducting pipe 33, a plate heat exchanger 31, a liquid inlet box 32, a mixing box 34, a connecting pipe 36, a longitudinal pipe 37, a sealing piston 39, a retaining ring 310, a connecting pipe 312 and an output pipe 35. The plate heat exchanger 31 is installed on the upper surface of the bottom plate 1. The upper surface of the bottom plate 1 is fixedly connected with the liquid inlet box 32 and the mixing box 34. The vertical oil pipe 2 is located between the liquid inlet box 32 and the mixing box 34. The hot fluid outlet of the plate heat exchanger 31 is provided with a connecting pipe 312. The connecting pipe 312 is inserted into one side of the liquid inlet box 32 far from the vertical oil pipe 2. A plurality of spiral heat-conducting pipes 33 are equidistantly sleeved on the surface of the vertical oil pipe 2. One end of the spiral heat-conducting pipe 33 is fixedly connected to one side of the liquid inlet box 32. The other end of the spiral heat-conducting pipe 33 is inserted into the surface of the mixing box 34 and extends into the interior of the mixing box 34. The mixing box 34 is fixedly connected with the spiral heat-conducting pipe 33. A diversion hole 313 communicating with the inside of the spiral heat-conducting pipe 33 is opened on one side of the liquid inlet box 32. The spiral heat-conducting pipe 33 is spiral-shaped, and joints are respectively arranged at both ends of the spiral heat-conducting pipe 33. The spiral heat-conducting pipe 33 and the two joints are integrally formed. The specific shape can be referred to Figure 10 shown.

[0051] A connecting pipe 36 is fixedly inserted into one side of the mixing box 34 far from the vertical oil pipe 2. The connecting pipe 36 communicates with the inside of the mixing box 34. An output pipe 35 is fixedly sleeved on the surface of the connecting pipe 36.

[0052] A sealing piston 39 is inserted into the interior of the liquid inlet box 32. The liquid inlet box 32 and the sealing piston 39 are in sealed sliding connection. The upper surface of the sealing piston 39 is fixedly connected with a longitudinal pipe 37. An air hole 38 is opened at the bottom end of the longitudinal pipe 37. The longitudinal pipe 37 longitudinally penetrates through a sliding hole 311 opened on the upper surface of the liquid inlet box 32. The longitudinal pipe 37 is in sliding connection with the liquid inlet box 32. A retaining ring 310 is fixedly sleeved on the surface of the longitudinal pipe 37. The retaining ring 310 is located above the liquid inlet box 32.

[0053] Inside the mixing tank 34, a mixing component 6 is provided. The mixing component 6 includes a spiral blade 61, a rotating shaft 62, a first bevel gear 65, a stirring shaft 69, a stirring rod 67, a second bearing 68, and a second bevel gear 66. Inside the connecting pipe 36, the rotating shaft 62 is provided. On the surface of the rotating shaft 62, a spiral blade 61 is fixedly sleeved. The spiral blade 61 is in fit with the inner wall of the connecting pipe 36.

[0054] On the surface of the rotating shaft 62, a first bearing 63 is sleeved. On the surface of the outer ring of the first bearing 63, a round shaft 64 is fixedly connected. One end of the round shaft 64 away from the first bearing 63 is fixedly connected with the connecting pipe 36. The rotating shaft 62 is rotationally connected with the round shaft 64 through the first bearing 63.

[0055] Inside the mixing tank 34, a second bearing 68 is installed. Inside the second bearing 68, a stirring shaft 69 is inserted. The stirring shaft 69 is rotationally connected with the mixing tank 34 through the second bearing 68. On the surface of the stirring shaft 69, a stirring rod 67 is fixedly connected. At the top end of the stirring shaft 69, a second bevel gear 66 is fixedly connected. On the surface of the second bevel gear 66, a first bevel gear 65 is meshed. One end of the rotating shaft 62 is fixedly connected with the first bevel gear 65.

[0056] Inside the liquid inlet tank 32, a liquid inlet component 5 is provided. The liquid inlet component 5 includes a rubber ball 51, a positioning ring 52, a connecting rod 53, and a second spring 54. Inside the diversion hole 313, the positioning ring 52, the connecting rod 53, and the rubber ball 51 are provided. Both the positioning ring 52 and the connecting rod 53 are fixedly connected with the liquid inlet tank 32. Inside the positioning ring 52, the second spring 54 is provided. Both ends of the second spring 54 are respectively fixedly connected with the connecting rod 53 and the rubber ball 51.

[0057] Inside the output pipe 35, a liquid discharge component 4 is provided. The liquid discharge component 4 includes a first spring 41, an inner plate 42, a rectangular sleeve 43, and an inner sliding rod 44. Inside the mixing tank 34, the inner plate 42 is provided. The spiral heat conduction pipe 33 is located at one end of the mixing tank 34 and is in fit with one side of the inner plate 42. One end of the inner plate 42 away from the spiral heat conduction pipe 33 is fixedly connected with the first spring 41. The other end of the first spring 41 is fixedly connected with the mixing tank 34.

[0058] Inside the mixing tank 34, a rectangular sleeve 43 is fixedly connected. Inside the rectangular sleeve 43, an inner sliding rod 44 is inserted. The rectangular sleeve 43 and the inner sliding rod 44 are in sliding connection. One end of the inner sliding rod 44 is fixedly connected with the inner plate 42.

[0059] During the operation of the system, the following temperature control algorithm is adopted to regulate the circulating water temperature to maintain the constant temperature of the vertical oil pipe. This algorithm includes the following steps:

[0060] a. Collect the initial temperature T1 of the water body in the liquid inlet tank (32) and the water temperature T2 flowing out of the mixing tank (34);

[0061] b. Compare T1 with the set target temperature T0. If T1 > T0, adjust the flow rate Vc of the cold fluid in the plate heat exchanger (31) to improve the heat exchange efficiency. If T1 < T0, reduce Vc to avoid excessive cooling;

[0062] c. Real-time collect the outlet pressure P of the spiral heat-conducting pipes (33) at various heights in the mixing tank (34) n and establish the pressure difference ΔP of each branch based on Bernoulli's equation n as the input signal, and adjust the opening degrees of the diversion holes (313) and the positioning rings (52) through the servo mechanism to achieve the consistency control of the flow rates of the heat-conducting pipes at different heights;

[0063] d. Compare the actual outlet temperature T2 in the mixing tank (34) with the target return temperature T0, and automatically adjust the rotation speed n of the stirring shaft of the mixing assembly (6) according to the deviation between T2 and T0 to ensure that the water at different temperatures is fully mixed and a constant-temperature water flow is output;

[0064] e. The temperature control and adjustment process is closed-loop controlled by an embedded controller, and the three parameters of Vc, ΔP n and n are adjusted in real time through the PID adjustment algorithm to maintain the temperature fluctuation of the oil product in the oil tank within ±1°C.

[0065] Working principle: When in use, both the cold fluid inlet and the cold fluid outlet of the plate heat exchanger 31 are connected to the external cold fluid pipeline. Among them, the cold fluid inlet is connected to the external water storage tank through the cold fluid pipeline and the water pump. Start the water pump, and water at a certain temperature will flow into the cold fluid inlet of the plate heat exchanger 31 along the cold fluid pipeline. After heat exchange, it flows out from the cold fluid outlet of the plate heat exchanger 31 into another cold fluid pipeline and finally flows back to the water storage tank, realizing the continuous circulation flow of cold water, ensuring that the plate heat exchanger 31 can continuously carry out heat exchange work, and the temperature of the vertical oil pipe 2 can be controlled by controlling the temperature of the water storage tank;

[0066] At the same time, the hot fluid inlet of the plate heat exchanger 31 is connected to the external circulation tank through the pipeline and the pump body. When the pump body operates, the water in the circulation tank flows into the hot fluid inlet of the plate heat exchanger 31, and after heat exchange with the cold fluid inside the plate heat exchanger 31, the water with a reduced temperature flows along the hot fluid outlet of the plate heat exchanger 31 into the connecting pipe 312 and passes through the connecting pipe 312 into the liquid inlet tank 32. Through the heat exchange effect of the plate heat exchanger 31, the effect of controlling the temperature of the water flowing into the liquid inlet tank 32 is achieved. In this process, the circulating water temperature is utilized to provide cooling water at an appropriate temperature for the subsequent stable cooling of the vertical oil pipe 2, which helps to keep the temperature of the oil product in the oil tank relatively constant and reduce the storage evaporation loss of the oil product caused by temperature fluctuations;

[0067] As the hot fluid continuously flows into the liquid inlet tank 32, the water in the tank gradually increases, and the liquid level rises, generating an upward lifting force on the sealing piston 39. During the upward movement of the sealing piston 39, the gas above it enters the longitudinal tube 37 through the air hole 38 and is discharged to the outside. When the sealing piston 39 rises above the uppermost diversion hole 313 and stops moving at an appropriate position, under the continuous injection of water by the pump body, the internal pressure of the liquid inlet tank 32 continuously increases. When the pressure reaches a certain level, the water in the liquid inlet tank 32 exerts sufficient force on the rubber ball 51 to overcome the elastic force of the second spring 54, causing the water to flow into the spiral heat-conducting tube 33 along the positioning ring 52. The aperture sizes of the multiple positioning rings 52 gradually decrease from top to bottom, which can adjust the liquid inflow of the spiral heat-conducting tubes 33 at different heights, making the water flow rates in each tube tend to be the same, ensuring uniform water distribution. The circulating water with a stable and appropriate temperature flows from the liquid inlet tank 32 into the spiral heat-conducting tube 33, continuously cooling the vertical oil pipe 2 and maintaining the stability of the light oil temperature in the oil tank, further reducing the risk of oil product evaporation loss caused by temperature changes;

[0068] The water entering the spiral heat-conducting tube 33 flows along the spiral pipeline under the action of gravity and the pressure in the liquid inlet tank 32. During this process, since the spiral heat-conducting tube 33 is tightly sleeved on the surface of the vertical oil pipe 2, the water undergoes sufficient heat exchange with the vertical oil pipe 2, taking away the heat on the surface of the vertical oil pipe 2, thereby achieving the cooling of the vertical oil pipe 2. The multiple spiral heat-conducting tubes 33 are distributed along the height direction of the vertical oil pipe 2, further ensuring the comprehensiveness and effectiveness of the cooling of the vertical oil pipe 2. Through the stable circulation cooling of the circulating water in the spiral heat-conducting tube 33, the light oil temperature in the oil tank can be maintained relatively constant, reducing the oil and gas production caused by high temperature, reducing the operating risk of the storage tank due to the rising pressure, and avoiding the dangerous situation of the tank floating caused by the excessive internal temperature of the tank due to direct sunlight in summer. At the same time, the stable oil temperature can reduce the light oil loss, ensure the oil product quality, and reduce the economic losses caused by the decline in oil product quality;

[0069] The water flowing out of the spiral heat-conducting tube 33 enters the mixing tank 34 and exerts a force on the built-in plate 42. According to Bernoulli's equation, due to the different outlet pressures of the spiral heat-conducting tubes 33 at different heights, the different heights of the pipelines result in different gravitational potential energies of the flowing fluid, and thus different pressures. The pressures of the water in each tube on the built-in plate 42 are also different. When these resultant forces are sufficient to overcome the elastic force of the first spring 41, the built-in plate 42 moves horizontally, driving the built-in sliding rod 44 to slide in the rectangular sleeve 43. In this way, the flow rates of the water flowing from the spiral heat-conducting tubes 33 at different heights into the mixing tank 34 are adjusted, narrowing the flow rate gap, enabling the water to enter the mixing tank 34 more evenly, and thus ensuring the heat exchange effect with the 2;

[0070] When the water in the mixing tank 34 flows out from the connecting pipe 36, the flowing water drives the spiral blade 61 to rotate, thereby causing the rotating shaft 62 to rotate. The rotation of the rotating shaft 62 drives the stirring shaft 69 to rotate through the meshing of the first bevel gear 65 and the second bevel gear 66, so that the stirring rod 67 stirs the water in the mixing tank 34. In this way, water at different temperatures can be quickly mixed to ensure that the water flowing out of the mixing tank 34 has a uniform temperature. The circulating water with a stable temperature flows back to the circulation pool after being mixed and adjusted, continuously providing a stable cooling capacity for the system, ensuring that the entire device continuously and stably cools the vertical oil pipe 2, maintaining a constant temperature of the light oil in the oil tank, reducing the evaporation loss of the oil product, enabling the loading operation in small and medium-sized enterprises without avoiding the high-temperature period at noon, and increasing the working efficiency of the factory;

[0071] The water that has been mixed and adjusted in the mixing tank 34 flows into the output pipe 35 from the connecting pipe 36 and finally flows into the external circulation pool from the output pipe 35, realizing the recycling of water. During the operation of the entire system, through the coordinated work of each component, the vertical oil pipe 2 is continuously cooled. At the same time, the temperature adjustment, flow distribution, uniform mixing, and recycling of the cooling water are ensured, effectively realizing the constant temperature control function of the new type of vertical constant temperature oil tank device. By using the circulating water temperature to keep the temperature of the oil product in the oil tank constant, the amount of oil and gas volatilization is greatly reduced, thereby saving the use time of the oil and gas recovery system, reducing the equipment operation cost, and saving production costs for the enterprise.

[0072] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A novel vertical constant temperature oil tank device, comprising a bottom plate (1) and a vertical oil pipe (2); Features: A cooling component (3) is provided on the surface of the vertical oil pipe (2), and the cooling component (3) comprises a spiral heat conducting pipe (33) sleeved on the surface of the vertical oil pipe (2), a plate heat exchanger (31) for cooling the vertical oil pipe (2) by injecting water into the spiral heat conducting pipe (33), a liquid inlet box (32), a mixing box (34), a connecting pipe (36) and an outlet pipe (35); A mixing assembly (6) is arranged inside the mixing box (34), and the mixing assembly (6) comprises a stirring rod (67) arranged inside the mixing box (34), a spiral blade (61) for driving the stirring rod (67) to rotate to stir and mix the water inside the mixing box (34), a rotating shaft (62), a bevel gear 1 (65), a stirring shaft (69) and a bevel gear 2 (66); A liquid inlet assembly (5) is disposed inside the liquid inlet box (32), and a liquid discharge assembly (4) is disposed inside the output pipe (35).

2. The novel vertical constant temperature oil tank device according to claim 1 is characterized in that: A plate heat exchanger (31) is installed on the upper surface of the base plate (1), and a liquid inlet box (32) and a mixing box (34) are fixedly connected to the upper surface of the base plate (1). The vertical oil pipe (2) is located between the liquid inlet box (32) and the mixing box (34). A connecting pipe (312) is installed at the hot fluid outlet of the plate heat exchanger (31), and the connecting pipe (312) is inserted on a side of the liquid inlet box (32) away from the vertical oil pipe (2). One end of the spiral heat conducting pipe (33) is fixedly connected to one side of the liquid inlet box (32), and the other end of the spiral heat conducting pipe (33) is inserted on the surface of the mixing box (34) and extends to the interior of the mixing box (34). A flow guide hole (313) connected to the interior of the spiral heat conducting pipe (33) is opened on one side of the liquid inlet box (32).

3. The novel vertical constant temperature oil tank device according to claim 1 is characterized in that: A connecting pipe (36) is fixedly inserted on the side of the mixing box (34) away from the vertical oil pipe (2); the connecting pipe (36) is connected to the interior of the mixing box (34); and an output pipe (35) is fixedly sleeved on the surface of the connecting pipe (36).

4. The novel vertical constant temperature oil tank device according to claim 1 is characterized in that: A sealing piston (39) is inserted into the interior of the liquid inlet box (32), and the liquid inlet box (32) and the sealing piston (39) are sealed and slidably connected. A longitudinal tube (37) is fixedly connected to the upper surface of the sealing piston (39), and an air hole (38) is provided at the bottom end of the longitudinal tube (37). The longitudinal tube (37) longitudinally penetrates a sliding hole (311) provided on the upper surface of the liquid inlet box (32), and the longitudinal tube (37) and the liquid inlet box (32) are slidably connected. A retaining ring (310) is fixedly sleeved on the surface of the longitudinal tube (37), and the retaining ring (310) is located above the liquid inlet box (32).

5. The novel vertical constant temperature oil tank device according to claim 1 is characterized in that: A rotating shaft (62) is arranged inside the connecting tube (36), and a spiral blade (61) is fixedly sleeved on the surface of the rotating shaft (62), and the spiral blade (61) is in contact with the inner wall of the connecting tube (36).

6. The novel vertical constant temperature oil tank device according to claim 1 is characterized in that: A bearing one (63) is sleeved on the surface of the rotating shaft (62). A round shaft (64) is fixedly connected to the surface of the outer ring of the bearing one (63). One end of the round shaft (64) away from the bearing one (63) is fixedly connected to the connecting pipe (36). The rotating shaft (62) is rotationally connected to the round shaft (64) through the bearing one (63).

7. The novel vertical constant temperature oil tank device according to claim 1 is characterized in that: A bearing two (68) is installed inside the mixing tank (34). A stirring shaft (69) is inserted into the bearing two (68). The stirring shaft (69) is rotationally connected to the mixing tank (34) through the bearing two (68). Stirring rods (67) are fixedly connected to the surface of the stirring shaft (69). A bevel gear two (66) is fixedly connected to the top end of the stirring shaft (69). A bevel gear one (65) is meshed with the surface of the bevel gear two (66). One end of the rotating shaft (62) is fixedly connected to the bevel gear one (65).

8. The novel vertical constant temperature oil tank device according to claim 2 is characterized in that: The liquid inlet assembly (5) includes a rubber ball (51), a positioning ring (52), a connecting rod (53) and a spring two (54). The positioning ring (52), the connecting rod (53) and the rubber ball (51) are arranged inside the diversion hole (313). The positioning ring (52) and the connecting rod (53) are both fixedly connected to the liquid inlet tank (32). A spring two (54) is arranged inside the positioning ring (52). Two ends of the spring two (54) are respectively fixedly connected to the connecting rod (53) and the rubber ball (51).

9. The novel vertical constant temperature oil tank device according to claim 1 is characterized in that: The liquid discharge assembly (4) includes a spring one (41) and an inner plate (42). The inner plate (42) is arranged inside the mixing tank (34). One end of the spiral heat conduction tube (33) located inside the mixing tank (34) is in contact with one side of the inner plate (42). One end of the inner plate (42) away from the spiral heat conduction tube (33) is fixedly connected to the spring one (41). The other end of the spring one (41) is fixedly connected to the mixing tank (34). A rectangular sleeve (43) is fixedly connected inside the mixing tank (34). An inner sliding rod (44) is inserted into the rectangular sleeve (43). The rectangular sleeve (43) is slidably connected to the inner sliding rod (44). One end of the inner sliding rod (44) is fixedly connected to the inner plate (42).

10. The novel vertical constant temperature oil tank device according to claim 1 is characterized in that: During the operation of the system, the following temperature control algorithm is adopted to regulate the circulating water temperature to maintain the constant temperature of the vertical oil pipe. The algorithm includes the following steps: a. Collect the initial temperature T1 of the water body in the liquid inlet tank (32) and the water temperature T2 flowing out of the mixing tank (34). b. Compare T1 with the set target temperature T0. If T1>T0, adjust the flow rate Vc of the cold fluid in the plate heat exchanger (31) to improve the heat exchange efficiency. If T1<T0, reduce Vc to avoid excessive cooling. c. Real-time collection of the outlet pressure P of the spiral heat pipe (33) at each height in the mixing box (34) n , and based on the Bernoulli equation, the pressure difference ΔP of each branch is established n As an input signal, the opening of the flow guide hole (313) and the positioning ring (52) is adjusted by a servo mechanism to achieve flow rate consistency control of heat transfer pipes at different heights; d. Compare the actual water outlet temperature T2 in the mixing tank (34) with the target return temperature T0. Automatically adjust the rotation speed n of the stirring shaft of the mixing assembly (6) according to the deviation between T2 and T0 to ensure that water at different temperatures is fully mixed and a constant temperature water flow is output. e. The temperature control process is closed-loop controlled by the embedded controller, and Vc, ΔP are adjusted by the PID adjustment algorithm. n The three parameters of temperature and n are adjusted in real time to maintain the temperature fluctuation of the oil in the tank within ±1℃.

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