Marine methanol fuel heating temperature self-adaptive regulation and control method and device

Abstract

The invention relates to the technical field of fuel heating, in particular to a marine methanol fuel heating temperature self-adaptive regulation and control method and device.The regulation and control device comprises a heat exchange box, a fuel pipe used for conveying fuel is arranged in the heat exchange box, the two ends of the heat exchange box are each provided with an end cover, and the two end covers are each provided with a pipe opening used for conveying a heating medium; the regulation and control device further comprises a regulation mechanism and a temperature sensing mechanism; the adjusting mechanism comprises an adjusting valve and an adjusting assembly, the adjusting valve is slidably arranged on the end cover, and the temperature sensing mechanism is used for controlling opening and closing of the adjusting valve; the temperature sensing mechanism comprises a temperature sensing assembly and a transmission assembly, the temperature sensing assembly is arranged in the heat exchange box, when the temperature in the heat exchange box changes, the temperature sensing assembly drives the adjusting assembly through the transmission assembly, and the adjusting assembly controls the opening degree of the adjusting valve. The function of adjusting the heat medium conveying efficiency according to the temperature condition in the heat exchange box is achieved, and the problem that in the heating process of methanol fuel, self-adaptive adjustment cannot be conducted on the heat medium according to the fuel temperature condition is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel heating, and particularly to a method and device for adaptively regulating the heating temperature of marine methanol fuel. Background Art

[0002] Adopting low-carbon alternative fuels, namely methanol fuels, is one of the important technical routes for energy conservation and emission reduction in ships at present. In order to ensure that the methanol fuel supply of a methanol fuel engine or a methanol dual-fuel engine meets the requirements of high-quality combustion and energy conversion of the engine, it is necessary to control the flow rate, pressure, temperature, etc. of the fuel. However, the existing fuel heating methods are single and cannot adjust the heating power according to the heat of the fuel, resulting in large fluctuations in the fuel temperature and affecting the working stability of the engine.

[0003] For this reason, Chinese Patent No. CN221002964U with the authorization announcement number discloses a methanol fuel multi-device heating constant temperature supply system, which adopts multiple heating devices. During low-temperature cold start, the methanol fuel supply process is always in a heating state, and there is no need to set the heating device at too high a temperature. A return oil pipeline is provided to improve the stability of the fuel pressure, and the whole device is safer during the working process.

[0004] However, when a large flow rate supply of methanol fuel is required, the energy consumed by the heating device is large and the cost is high. And once the temperature of the methanol fuel is higher than the set temperature, although the full-power operation of multiple heating devices under large flow rate conditions can maintain the temperature stability, there is redundant energy consumption in the multi-stage series heating mode. Especially when the fuel flow rate changes, it causes the heat source temperature to increase and cannot dynamically match the heating demand, resulting in energy waste. Summary of the Invention

[0005] Aiming at the above problems, a method and device for adaptively regulating the heating temperature of marine methanol fuel are provided, which solve the problem that the heat source cannot be adaptively adjusted according to the fuel temperature during the heating process of methanol fuel through a heat exchange tank, an adjustment mechanism and a temperature sensing mechanism.

[0006] To solve the problems of the existing technology, the present invention provides a method for adaptively regulating the heating temperature of marine methanol fuel, including the following steps:

[0007] S1. Connect the heat medium from the main engine to the pneumatic stop valve through the branch pipe of the outlet section, and control the opening and closing state of the pneumatic stop valve according to the heating demand of the methanol fuel.

[0008] S2. Make the heat medium flow through the regulating valve for shunt control. The regulating valve is set in a single-inlet double-outlet structure, the first outlet is connected to the stop valve of the inlet pipeline of the heat exchange tank, and the second outlet is directly connected to the outlet pipeline of the heat exchange tank.

[0009] S3. The temperature of the methanol fuel is detected in real time by the temperature sensing mechanism installed at the inlet of the heat exchange tank, and the opening degree of the regulating valve is dynamically adjusted according to the temperature feedback:

[0010] When the detected temperature is lower than the set threshold value, the opening degree of the first outlet of the regulating valve is increased to increase the flow rate of the heat medium entering the heat exchange tank; when the detected temperature is higher than the set threshold value, the opening degree of the first outlet of the regulating valve is decreased to reduce the flow rate of the heat medium entering the heat exchange tank;

[0011] S4. The two shunted heat media are confluent after heat exchange and are uniformly discharged to the outside of the ship through the side stop check valve.

[0012] Preferably, the heat medium described in step S1 includes at least one of seawater cooling water, low-temperature fresh water or high-temperature fresh water.

[0013] Preferably, the adjustment of the opening degree of the regulating valve has a non-linear relationship with the heat transfer requirement of the heat exchange tank, and the opening degree compensation adjustment mechanism is started when the detected temperature deviates from the set threshold value by ±5°C.

[0014] A marine methanol fuel heating temperature adaptive control device includes a heat exchange tank. A fuel pipe for transmitting fuel is provided in the heat exchange tank. An end cover is provided at each end of the heat exchange tank, and a pipe orifice for transmitting heat medium is provided on each of the two end covers; the control device further includes an adjustment mechanism and a temperature sensing mechanism; the adjustment mechanism includes a regulating valve and an adjustment component. The regulating valve is slidably arranged on the end cover, and the temperature sensing mechanism is used to control the opening and closing of the regulating valve; the temperature sensing mechanism includes a temperature sensing component and a transmission component. The temperature sensing component is arranged in the heat exchange tank. When the temperature in the heat exchange tank changes, the temperature sensing component drives the adjustment component through the transmission component, and the adjustment component controls the opening degree of the regulating valve.

[0015] Preferably, the temperature sensing component includes a mounting frame, an annular temperature sensing pipe and an annular rod; the mounting frame is arranged in the heat exchange tank; the annular temperature sensing pipe is arranged on the mounting frame, and an inert gas is filled in the annular temperature sensing pipe; the annular rod is in transmission connection with the transmission component, and a piston is provided at the end of the annular rod, and the piston is in close fit with the inner wall of the annular temperature sensing pipe.

[0016] Preferably, there are two temperature sensing components, and the two temperature sensing components are respectively located at the side end covers; a communicating pipe is provided between the two mounting frames, and the two annular temperature sensing pipes are communicated through the communicating pipe.

[0017] Preferably, a flow guiding mechanism is provided in the heat exchange tank. The flow guiding mechanism includes a flow guiding component and a control component; the flow guiding component is used to guide the flow direction of the heat medium; the control component is used to control the guiding direction of the flow guiding component, and the control component is in transmission connection with the regulating valve.

[0018] Preferably, the flow guiding component includes a cross bar and a flow guiding plate; the cross bar is arranged in the heat exchange tank; the flow guiding plate is rotatably arranged on the cross bar, and the flow guiding plate is connected to the cross bar through a torsion spring.

[0019] Preferably, the control component includes an extension rod and a first push block; the extension rod is connected to the diversion plate; the first push block is arranged on the regulating valve; during the movement of the regulating valve, when the first push block contacts the extension rod, it pushes the extension rod to rotate.

[0020] Preferably, the diversion mechanism includes an elastic pushing component, and the elastic pushing component includes a mounting cylinder, a first push plate and a second push plate; the mounting cylinder is arranged in the heat exchange box; both the first push plate and the second push plate are telescopically arranged on the mounting cylinder through rods; an elastic member connected to the second push plate is arranged on the first push plate; a fixed shaft is arranged on the extension rod, and a linear guide groove slidably matched with the fixed shaft is formed on the second push plate; a second push block for pushing the first push plate is arranged on the regulating valve.

[0021] Preferably, both ends of the fuel pipe are located outside the heat exchange box, and the part of the fuel pipe located inside the heat exchange box is spiral.

[0022] Preferably, the adjusting component includes a guide rail, an extension strip and a screw rod; the guide rail is arranged on the end cover; the extension strip is connected to the regulating valve and is slidably matched with the guide rail; the screw rod is rotatably arranged on the end cover, and the screw rod is in threaded connection with the extension strip.

[0023] Preferably, the transmission component includes a toothed ring, a first rotating shaft and a rotating gear; the toothed ring is connected to the annular rod; the first rotating shaft is rotatably arranged on the mounting frame, and the first rotating shaft is in transmission connection with the adjusting component; the rotating gear is sleeved on the first rotating shaft, and the rotating gear is meshed with the toothed ring.

[0024] The beneficial effects of the present invention compared with the prior art are as follows:

[0025] 1. The present invention realizes the function of adjusting the heat medium conveying efficiency according to the internal temperature condition of the heat exchange box through the heat exchange box, the adjusting mechanism and the temperature sensing mechanism. When the temperature of the heat medium in the heat exchange box increases, the heat medium flow rate is reduced to stabilize the temperature of the heat medium in the heat exchange box, achieving the effect of controlling the temperature of the methanol fuel within a specified range, and solving the problem that the heat medium cannot be adaptively adjusted according to the fuel temperature condition during the heating process of the methanol fuel. The methanol fuel is heated by the discharged water heat of the original cooling water system of the ship without the need to configure an additional heating device, making full use of the low-quality heat energy of the ship's cooling water. Only a branch pipe needs to be connected from the cooling water discharge port position to this device, and the transformation and installation are convenient and simple.

[0026] 2. The present invention realizes the function of sensing the temperature change of the heat medium in the induction heat exchange box through the mounting frame, the annular temperature sensing tube and the annular rod, and achieves the effect of driving the adjustment component through the transmission component by the work done by the expansion of the gas in the annular temperature sensing tube. Through the annular design of the annular temperature sensing tube and the annular rod, when the temperature changes, the annular rod makes a rotational movement under the action of gas pressure, and the piston rod transmits the torque to the adjustment component through the transmission component. The setting of the annular temperature sensing tube can integrate the driving structure at the end cover without affecting the heat exchange between the heat medium and the fuel pipe.

[0027] 3. The present invention realizes the function of connecting two annular temperature sensing tubes through the connecting pipe. Through the setting of the connecting pipe and the two annular temperature sensing tubes, the gas in the annular temperature sensing tube can be evenly heated. Since the annular temperature sensing tube is arranged at the end cover, if the annular temperature sensing tube is only arranged at the inlet of the heat medium, when the opening degree of the regulating valve is small, it may cause a locally high temperature at the inlet of the heat medium, resulting in the annular temperature sensing tube being unable to expand or contract according to the temperature of the heat medium in the heat exchange box, reducing the flexibility of the temperature sensing component. Therefore, temperature sensing components are arranged on both sides of the end cover. The temperature changes at the inlet and outlet of the heat medium are respectively sensed by the temperature sensing components on both sides, and the two annular temperature sensing tubes are connected through the connecting pipe. Combining the gas expansion conditions in the annular temperature sensing tubes at both ends, and the connecting pipe is inside the heat exchange box, so that the inert gas in the annular temperature sensing tube can be evenly heated, improving the sensitivity and stability of the temperature sensing component. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the principle of a marine methanol fuel heating temperature adaptive control device of the present invention.

[0029] Figure 2 is a schematic diagram of the structure distribution of a marine methanol fuel heating temperature adaptive control device of the present invention.

[0030] Figure 3 is a three-dimensional schematic diagram of a marine methanol fuel heating temperature adaptive control device of the present invention.

[0031] Figure 4 is a three-dimensional schematic diagram of the internal structure of the heat exchange box in a marine methanol fuel heating temperature adaptive control device of the present invention.

[0032] Figure 5 is a three-dimensional schematic diagram of the end cover, the adjustment mechanism, the temperature sensing mechanism and the diversion mechanism in a marine methanol fuel heating temperature adaptive control device of the present invention.

[0033] Figure 6 is a three-dimensional schematic diagram of the temperature sensing component, the transmission component and the diversion mechanism in a marine methanol fuel heating temperature adaptive control device of the present invention.

[0034] Figure 7 This is a three-dimensional schematic diagram of the temperature-sensing component in a marine methanol fuel heating temperature adaptive control device of the present invention.

[0035] Figure 8 This is a three-dimensional schematic diagram of the temperature-sensing component and the flow guiding mechanism in a marine methanol fuel heating temperature adaptive control device of the present invention.

[0036] Figure 9 This is of the present invention Figure 8 The partial enlarged schematic diagram at position A.

[0037] Figure 10 This is a three-dimensional schematic diagram of the end cover, the regulating valve and the flow guiding mechanism in a marine methanol fuel heating temperature adaptive control device of the present invention.

[0038] Figure 11 This is a three-dimensional schematic diagram of the end cover and the regulating mechanism in a marine methanol fuel heating temperature adaptive control device of the present invention.

[0039] Figure 12 This is of the present invention Figure 11 The partial enlarged schematic diagram at position B.

[0040] The reference numerals in the figure are: 1, heat exchange box; 11, fuel pipe; spiral shape; 12, end cover; 121, pipe orifice; 2, regulating mechanism; 21, regulating valve; 211, second push block; 22, regulating component; 221, guide rail; 222, extension bar; 223, screw rod; 224, second rotating shaft; 225, belt pulley; 226, transmission belt; 227, bevel gear; 3, temperature-sensing mechanism; 31, temperature-sensing component; 311, mounting frame; 312, annular temperature-sensing pipe; 313, annular rod; 3131, piston; 32, transmission component; 321, toothed ring; 322, first rotating shaft; 323, rotating gear; 33, communication pipe; 4, flow guiding mechanism; 41, flow guiding component; 411, cross bar; 412, flow guiding plate; 42, control component; 421, extension rod; 4211, fixed shaft; 422, first push block; 43, elastic pushing component; 431, mounting cylinder; 432, first push plate; 433, second push plate; 434, elastic member. Detailed implementation manners

[0041] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the following provides a more detailed description of the present invention in combination with the drawings and specific implementation manners.

[0042] Referring to Figure 1 and Figure 2 , a marine methanol fuel heating temperature adaptive control method includes the following steps:

[0043] S1. Connect the heat medium from the host to the pneumatic stop valve through the branch pipe of the outlet section, and control the opening and closing state of the pneumatic stop valve according to the heating demand of methanol fuel;

[0044] S2. Make the heat medium flow through the regulating valve 21 for shunt control. The regulating valve 21 is set in a single-inlet double-outlet structure. The first outlet is connected to the stop valve of the inlet pipeline of the heat exchange tank 1, and the second outlet is directly connected to the outlet pipeline of the heat exchange tank 1;

[0045] S3. Real-time detect the temperature of methanol fuel through the temperature sensing mechanism 3 installed at the inlet of the heat exchange tank 1, and dynamically adjust the opening of the regulating valve 21 according to the temperature feedback:

[0046] When the detected temperature is lower than the set threshold, increase the opening of the first outlet of the regulating valve 21 to increase the heat medium flow into the heat exchange tank 1; when the detected temperature is higher than the set threshold, decrease the opening of the first outlet of the regulating valve 21 to reduce the heat medium flow into the heat exchange tank 1;

[0047] S4. Make the two shunted heat media converge after heat exchange and be uniformly discharged to the outside of the ship through the side stop check valve.

[0048] The heat medium described in step S1 includes at least one of seawater cooling water, low-temperature fresh water or high-temperature fresh water.

[0049] The opening adjustment of the regulating valve 21 has a non-linear relationship with the heat transfer demand of the heat exchange tank 1, and the opening compensation adjustment mechanism is started when the detected temperature deviates from the set threshold by ±5°C.

[0050] Refer to Figures 3 - 5 : A marine methanol fuel heating temperature adaptive control device, including a heat exchange tank 1. A fuel pipe 11 for transmitting fuel is arranged in the heat exchange tank 1. End covers 12 are respectively arranged at both ends of the heat exchange tank 1, and pipe orifices 121 for transmitting heat medium are respectively arranged on the two end covers 12; The control device also includes a regulating mechanism 2 and a temperature sensing mechanism 3; The regulating mechanism 2 includes a regulating valve 21 and a regulating component 22. The regulating valve 21 is slidably arranged on the end cover 12, and the temperature sensing mechanism 3 is used to control the opening and closing of the regulating valve 21; The temperature sensing mechanism 3 includes a temperature sensing component 31 and a transmission component 32. The temperature sensing component 31 is arranged in the heat exchange tank 1. When the temperature in the heat exchange tank 1 changes, the temperature sensing component 31 drives the regulating component 22 through the transmission component 32, and the regulating component 22 controls the opening of the regulating valve 21.

[0051] The present invention realizes the function of adjusting the heat medium delivery efficiency according to the internal temperature of the heat exchange box 1 through the heat exchange box 1, the adjustment mechanism 2 and the temperature sensing mechanism 3. When the temperature of the heat medium in the heat exchange box 1 increases, the heat medium flow rate is reduced to stabilize the temperature of the heat medium in the heat exchange box 1, achieving the effect of controlling the temperature of the methanol fuel within a specified range and solving the problem that the heat medium cannot be adaptively adjusted according to the fuel temperature during the heating process of the methanol fuel. The heat medium uses ship cooling water, and the heat in the discharged water of the original ship cooling water system is used to heat the methanol fuel without the need to configure an additional heating device, making full use of the low-quality heat energy of the ship cooling water. Only a branch pipe needs to be connected from the position of the cooling water discharge port to this device, and the transformation and installation are convenient and simple.

[0052] In the working state, when the flow rate of the fuel pipe 11 changes, it will cause the temperature of the heat medium in the heat exchange box 1 to fluctuate. When the temperature of the heat medium in the heat exchange box 1 decreases, after the temperature sensing component 31 senses the temperature change, it does work, and transmits the torque to the adjustment component 22 through the transmission component 32. The adjustment component 22 controls the movement of the regulating valve 21 to increase the flow rate of the heat medium. By introducing more heat medium, the temperature of the heat medium in the heat exchange box 1 is stabilized to ensure that the fuel in the fuel pipe 11 can obtain sufficient heat. When the temperature of the heat medium in the heat exchange box 1 increases, the temperature sensing component 31 drives the adjustment component 22 through the transmission component 32, and the adjustment component 22 controls the movement of the regulating valve 21 to reduce the flow rate of the heat medium, avoiding energy waste.

[0053] Refer to Figure 5 and Figure 6 : The temperature sensing component 31 includes a mounting frame 311, an annular temperature sensing tube 312 and an annular rod 313; the mounting frame 311 is arranged in the heat exchange box 1; the annular temperature sensing tube 312 is arranged on the mounting frame 311, and an inert gas is filled in the annular temperature sensing tube 312; the annular rod 313 is in transmission connection with the transmission component 32, and a piston 3131 is provided at the end of the annular rod 313, and the piston 3131 is in close fit with the inner wall of the annular temperature sensing tube 312.

[0054] The present invention realizes the function of sensing the temperature change of the heat medium in the heat exchange box 1 through the mounting frame 311, the annular temperature sensing tube 312 and the annular rod 313, and works through the gas expansion in the annular temperature sensing tube 312, so as to achieve the effect of driving the adjustment component 22 through the transmission component 32. Through the annular design of the annular temperature sensing tube 312 and the annular rod 313, the annular rod 313 rotates under the action of gas pressure when the temperature changes, and the annular rod 313 transmits the torque to the adjustment component 22 through the transmission component 32. The setting of the annular temperature sensing tube 312 can integrate the driving structure at the end cover 12 without affecting the heat exchange between the heat medium and the fuel pipe 11. In the working state, when the temperature of the heat medium in the heat exchange box 1 changes, the gas in the annular temperature sensing tube 312 expands or contracts as the temperature changes, and the piston 3131 of the annular rod 313 slides along the inner wall of the annular temperature sensing tube 312 under the action of gas pressure. The annular rod 313 drives the regulating component 22 through the transmission component 32. The regulating component 22 controls the movement of the regulating valve 21, changes the opening of the regulating valve 21, and adjusts the flow of the heat medium.

[0055] Reference Figure 4 and Figure 7 : Two temperature sensing components 31 are provided, and the two temperature sensing components 31 are respectively located at the end covers 12 on both sides; a connecting pipe 33 is provided between the two mounting frames 311, and the two annular temperature sensing tubes 312 are connected through the connecting pipe 33.

[0056] The present invention realizes the function of connecting two annular temperature sensing tubes 312 through the connecting tube 33. The connecting tube 33 and the two annular temperature sensing tubes 312 enable the gas in the annular temperature sensing tubes 312 to be heated evenly. Since the annular temperature sensing tube 312 is arranged at the end cover 12, if the annular temperature sensing tube 312 is only arranged at the inlet of the heat medium, when the opening of the regulating valve 21 is small, the local temperature at the inlet of the heat medium may be high, resulting in the annular temperature sensing tube 312 being unable to expand or contract according to the temperature of the heat medium in the heat exchange box 1, thereby reducing the flexibility of the temperature sensing component 31. To this end, the temperature sensing components 31 are arranged on both sides of the end cover 12, and the temperature sensing components 31 on both sides respectively sense the temperature changes at the inlet and outlet of the heat medium, and the two annular temperature sensing tubes 312 are connected through the connecting tube 33. Combined with the gas expansion conditions in the annular temperature sensing tubes 312 at both ends, and the connecting tube 33 is inside the heat exchange box 1, the inert gas in the annular temperature sensing tube 312 can be heated evenly, thereby improving the sensitivity and stability of the temperature sensing component 31.

[0057] Reference Figure 5 and Figure 6 : A flow guide mechanism 4 is provided in the heat exchange box 1, and the flow guide mechanism 4 includes a flow guide component 41 and a control component 42; the flow guide component 41 is used to guide the flow direction of the heat medium; the control component 42 is used to control the guiding direction of the flow guide component 41, and the control component 42 is transmission-connected to the regulating valve 21.

[0058] The present invention realizes the function of diverting the heat medium entering the heat exchange box 1 through the diversion component 41 and the control component 42, so that the heat medium entering the heat exchange box 1 can be evenly distributed in the heat exchange box 1. Since the pipe orifice 121 on the end cover 12 is located at the center of the end cover 12, therefore, the heat medium needs to be diverted after entering the heat exchange box 1. In the working state, when the temperature of the heat medium in the heat exchange box 1 rises, the temperature sensing component 31 drives the adjusting component 22 through the transmission component 32, and the adjusting component 22 controls the opening degree of the regulating valve 21 to decrease, reducing the flow rate of the heat medium. Since the flow rate of the heat medium decreases, the flow velocity of the newly entering heat medium after entering the heat exchange box 1 decreases, resulting in the inability of the newly entering heat medium to mix with the heat medium in the heat exchange box 1, and the temperature of the heat medium at the inlet rises. Therefore, the diversion component 41 is provided. When the opening degree of the regulating valve 21 decreases, the diversion angle of the diversion component 41 is adjusted through the control component 42, so that the heat medium can be diverted from the pipe orifice 121 to the upper and lower sides of the heat exchange box 1, improving the mixing uniformity of the heat medium.

[0059] Refer to Figure 6 and Figure 8 : The diversion component 41 includes a cross bar 411 and a diversion plate 412; the cross bar 411 is arranged in the heat exchange box 1; the diversion plate 412 is rotatably arranged on the cross bar 411, and the diversion plate 412 is connected to the cross bar 411 through a torsion spring.

[0060] The present invention realizes the function of diverting the heat medium through the cross bar 411 and the diversion plate 412, and controls the rotation of the diversion plate 412 through the control component 42 to adjust the diversion angle, achieving the effect that the heat medium entering the heat exchange box 1 can be evenly dispersed in the heat exchange box 1. In the working state, when the temperature sensing component 31 drives the adjusting component 22 through the transmission component 32, the adjusting component 22 controls the movement of the regulating valve 21. When the regulating valve 21 moves, it transmits torque through the control component 42 to push the diversion plate 412 to rotate, adjusting the inclination angle of the diversion plate 412, so that the heat medium can be evenly dispersed into the heat exchange box 1. After the temperature in the heat exchange box 1 stabilizes, the temperature sensing component 31 controls the regulating valve 21 to reset through the transmission component 32 and the adjusting component 22, and the diversion plate 412 resets under the elastic force of the torsion spring.

[0061] Refer to Figure 8 and Figure 10 : The control component 42 includes an extension rod 421 and a first push block 422; the extension rod 421 is connected to the diversion plate 412; the first push block 422 is arranged on the regulating valve 21; during the movement of the regulating valve 21, when the first push block 422 contacts the extension rod 421, it pushes the extension rod 421 to rotate.

[0062] The present invention realizes the function of controlling the rotation of the deflector 412 through the extension rod 421 and the first push block 422. The heat exchange box 1 is generally cylindrical in shape, and the angle between the extension rod 421 and the deflector 412 is an obtuse angle. When the extension rod 421 is separated from the first push block 422, the deflector 412 is reset under the elastic force of the torsion spring, and the deflector 412 is in a horizontal state. When the regulating assembly 22 controls the movement of the regulating valve 21, the regulating valve 21 drives the first push block 422 to move. When the first push block 422 contacts the extension rod 421, it pushes the extension rod 421, and then drives the deflector 412 to rotate through the extension rod 421, so that the deflector 412 moves away from the pipe orifice 121, guiding the heat medium to flow away from the axis of the heat exchange box 1, dispersing the newly introduced heat medium, and further making the temperature of the heat medium in the heat exchange box 1 more uniform.

[0063] Refer to Figure 6 、 Figures 8 - 10 : The deflector mechanism 4 includes an elastic pushing assembly 43, and the elastic pushing assembly 43 includes a mounting cylinder 431, a first push plate 432 and a second push plate 433; the mounting cylinder 431 is arranged inside the heat exchange box 1; both the first push plate 432 and the second push plate 433 are telescopically arranged on the mounting cylinder 431 through rods; an elastic member 434 connected to the second push plate 433 is provided on the first push plate 432; a fixed shaft 4211 is provided on the extension rod 421, and a linear guide groove slidably matched with the fixed shaft 4211 is formed on the second push plate 433; a second push block 211 for pushing the first push plate 432 is provided on the regulating valve 21.

[0064] The present invention realizes the function of pushing the deflector 412 to rotate in advance through the mounting cylinder 431, the first push plate 432, the second push plate 433, the elastic member 434 and the second push block 211. The elastic member 434 is preferably a compression spring. When pushing the extension rod 421 through the first push block 422, it is necessary for the first push block 422 to contact the extension rod 421. And the regulating valve 21 will not contact the extension rod 421 in the initial stage of regulation. The mounting cylinder 431 is installed on the mounting bracket 311. Therefore, an elastic pushing assembly 43 for pushing the deflector 412 in advance is provided. When the regulating assembly 22 controls the movement of the regulating valve 21, the regulating valve 21 drives the first push plate 432 to move, the first push plate 432 pushes the second push plate 433, and the elastic member 434 contracts under the thrust. And when the contraction amount of the elastic member 434 increases, the elastic force increases. After the elastic force of the elastic member 434 exceeds the elastic force of the torsion spring, it can push the fixed shaft 4211 on the extension rod 421 through the second push plate 433 to control the rotation of the deflector 412.

[0065] Refer to Figure 4 : Both ends of the fuel pipe 11 are located outside the heat exchange box 1, and the part of the fuel pipe 11 located inside the heat exchange box 1 is spiral-shaped.

[0066] The present invention realizes the function of increasing the contact area between the fuel pipe 11 and the heat medium through the spiral fuel pipe 11. In order to ensure the heat exchange efficiency between the fuel pipe 11 and the heat medium, the fuel pipe 11 is arranged in a spiral shape. The connecting pipe 33 passes through the center of the spiral fuel pipe 11 to connect two annular temperature sensing pipes 312.

[0067] Refer to Figure 5 、 Figures 10 - 12 : The adjusting assembly 22 includes a guide rail 221, an extension bar 222 and a screw rod 223; the guide rail 221 is arranged on the end cover 12; the extension bar 222 is connected to the regulating valve 21, and the extension bar 222 is slidably matched with the guide rail 221; the screw rod 223 is rotatably arranged on the end cover 12, and the screw rod 223 is threadedly connected to the extension bar 222.

[0068] The present invention realizes the function of controlling the movement of the regulating valve 21 through the guide rail 221, the extension bar 222 and the screw rod 223. Two regulating valves 21 are provided on each end cover 12, and two screw thread segments with opposite spiral directions are provided on the screw rod 223. The two screw thread segments are respectively threadedly connected to the extension bars 222 of the two regulating valves 21. A second rotating shaft 224 is provided on the end cover 12. A pulley 225 is sleeved on each of the screw rod 223 and the second rotating shaft 224. A transmission belt 226 is straddled on the pulleys 225, and the transmission belt 226 connects the two pulleys 225. The second rotating shaft 224 is in transmission connection with the transmission assembly 32. When the temperature in the heat exchange box 1 changes, the temperature sensing assembly 31 drives the second rotating shaft 224 to rotate through the transmission assembly 32. The second rotating shaft 224 drives the screw rod 223 to rotate through the pulley 225 and the transmission belt 226. The screw rod 223 drives the extension bars 222 of the two regulating valves 21 to move in the same speed and opposite directions through the two screw thread segments, and then controls the flow rate of the heat medium through the two regulating valves 21.

[0069] Refer to Figure 5 、 Figure 6 、 Figure 11 and Figure 12 : The transmission assembly 32 includes a toothed ring 321, a first rotating shaft 322 and a rotating gear 323; the toothed ring 321 is connected to the annular rod 313; the first rotating shaft 322 is rotatably arranged on the mounting bracket 311, and the first rotating shaft 322 is in transmission connection with the adjusting assembly 22; the rotating gear 323 is sleeved on the first rotating shaft 322, and the rotating gear 323 is meshed and connected to the toothed ring 321.

[0070] The present invention realizes the function of driving the adjusting assembly 22 when the annular rod 313 rotates through the toothed ring 321, the first rotating shaft 322 and the rotating gear 323. A bevel gear 227 is sleeved on each of the first rotating shaft 322 and the second rotating shaft 224, and the two bevel gears 227 are meshed and connected. When the piston 3131 on the annular rod 313 slides under the action of air pressure, the annular rod 313 drives the toothed ring 321 to rotate. The toothed ring 321 drives the rotating gear 323 meshed with it to rotate, and the rotating gear 323 drives the first rotating shaft 322 to rotate. The first rotating shaft 322 drives the second rotating shaft 224 to rotate through the bevel gear 227, and the second rotating shaft 224 drives the screw 223 to rotate through the belt pulley 225 and the transmission belt 226, thereby controlling the movement of the two regulating valves 21, controlling the opening degree of the regulating valves 21, and changing the flow rate of the heat medium.

[0071] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A method for adaptively regulating the heating temperature of marine methanol fuel, characterized in that, It includes the following steps: S1. Connect the heat medium from the host to the pneumatic stop valve through the branch pipe of the outlet section, and control the opening and closing state of the pneumatic stop valve according to the heating demand of methanol fuel; S2. Let the heat medium flow through the regulating valve (21) for flow control. The regulating valve (21) is set in a single-inlet double-outlet structure. The first outlet is connected to the stop valve of the inlet pipeline of the heat exchange tank (1), and the second outlet is directly connected to the outlet pipeline of the heat exchange tank (1); S3. Real-time detect the temperature of methanol fuel through the temperature sensing mechanism (3) installed at the inlet of the heat exchange tank (1), and dynamically adjust the opening of the regulating valve (21) according to the temperature feedback: When the detected temperature is lower than the set threshold, increase the opening of the first outlet of the regulating valve (21) to increase the heat medium flow rate entering the heat exchange tank (1); when the detected temperature is higher than the set threshold, decrease the opening of the first outlet of the regulating valve (21) to reduce the heat medium flow rate entering the heat exchange tank (1); S4. Let the two shunted heat media converge after heat exchange and be uniformly discharged to the outside of the ship through the side stop check valve.

2. The self - adaptive regulation method for the heating temperature of marine methanol fuel according to claim 1, characterized in that, The heat medium described in step S1 includes at least one of seawater cooling water, low-temperature fresh water or high-temperature fresh water.

3. The method for adaptively regulating the heating temperature of marine methanol fuel according to claim 1, characterized in that The opening adjustment of the regulating valve (21) has a non-linear relationship with the heat transfer demand of the heat exchange tank (1), and the opening compensation adjustment mechanism is started when the detected temperature deviates from the set threshold by ±5°C.

4. A marine methanol fuel heating temperature adaptive control device for implementing the marine methanol fuel heating temperature adaptive control method described in any one of claims 1-3. The control device includes a heat exchange tank (1). A fuel pipe (11) for transmitting fuel is provided in the heat exchange tank (1). End caps (12) are respectively provided at both ends of the heat exchange tank (1), and pipe orifices (121) for transmitting heat medium are respectively provided on the two end caps (12); Characterized in that, The control device further includes an adjustment mechanism (2) and a temperature sensing mechanism (3); The adjustment mechanism (2) includes a regulating valve (21) and an adjustment component (22). The regulating valve (21) is slidably arranged on the end cap (12), and the temperature sensing mechanism (3) is used to control the opening and closing of the regulating valve (21); The temperature sensing mechanism (3) includes a temperature sensing component (31) and a transmission component (32). The temperature sensing component (31) is arranged in the heat exchange tank (1). When the temperature in the heat exchange tank (1) changes, the temperature sensing component (31) drives the adjustment component (22) through the transmission component (32), and the adjustment component (22) controls the opening of the regulating valve (21).

5. The self - adaptive control device for the heating temperature of marine methanol fuel according to claim 4, characterized in that, The temperature sensing component (31) includes a mounting bracket (311), an annular temperature sensing pipe (312) and an annular rod (313); The mounting bracket (311) is arranged in the heat exchange tank (1); The annular temperature sensing pipe (312) is arranged on the mounting bracket (311), and an inert gas is filled in the annular temperature sensing pipe (312); The annular rod (313) is in transmission connection with the transmission component (32), and a piston (3131) is provided at the end of the annular rod (313). The piston (3131) is in close fit with the inner wall of the annular temperature sensing pipe (312).

6. The self - adaptive regulation device for the heating temperature of marine methanol fuel according to claim 5, wherein, There are two temperature sensing components (31), and the two temperature sensing components (31) are respectively located at the end caps (12) on both sides; A connecting pipe (33) is provided between the two mounting frames (311), and the two annular temperature sensing pipes (312) are connected via the connecting pipe (33).

7. The self - adaptive regulation device for the heating temperature of marine methanol fuel according to claim 4, characterized in that, A flow guiding mechanism (4) is provided in the heat exchange box (1), and the flow guiding mechanism (4) comprises a flow guiding component (41) and a control component (42); The flow guide component (41) is used to guide the flow direction of the heat medium; The control component (42) is used to control the guiding direction of the flow guiding component (41), and the control component (42) is transmission-connected to the regulating valve (21).

8. A marine methanol fuel heating temperature adaptive control device according to claim 7, characterized in that, The flow guide assembly (41) comprises a cross bar (411) and a flow guide plate (412); The cross bar (411) is arranged in the heat exchange box (1); The guide plate (412) is rotatably arranged on the cross bar (411), and the guide plate (412) is connected to the cross bar (411) via a torsion spring.

9. The self - adaptive control device for the heating temperature of marine methanol fuel according to claim 7, wherein, The control assembly (42) includes an extension rod (421) and a first push block (422); The extension rod (421) is connected to the guide plate (412); The first push block (422) is arranged on the regulating valve (21); During the movement of the regulating valve (21), when the first pushing block (422) contacts the extension rod (421), it pushes the extension rod (421) to rotate.

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