Shipborne thermal energy conversion device and use method

Abstract

The present invention discloses a shipborne heat energy conversion device and a method of use, wherein the shipborne heat energy conversion device includes a heating circuit and a heating branch, the heating circuit is provided with a radiator, a water volume pressurizing device, a driving mechanism and a heating system in sequence along the direction of liquid flow, the liquid inlet end of the radiator is provided with a second temperature detection device; the heating branch is connected to the heating circuit in parallel with the heating system, the heating branch is provided with a heat exchanger, the liquid outlet end of the heat exchanger is provided with a first temperature detection device, the heat exchanger can exchange heat with the engine, and the engine is provided with a third temperature detection device. Beneficial effect: The technical solution of the present invention avoids energy waste by providing a heating branch on the heating circuit, and uses the heating branch to send the heat energy generated during the operation of the engine to the radiator for heating of the ship, thereby achieving both cooling of the engine and reducing the energy consumption of the heating system, thus being energy-saving, environmentally friendly and having good practicality.

Description

Technical Field

[0001] The present invention relates to the field of heating technology, and in particular to a shipboard heat energy conversion device and a use method thereof. Background Art

[0002] The shipborne thermal energy conversion device is a system suitable for heating in the narrow space of the ship. In the existing technology, when heating the narrow space of the ship, water heating is usually used for heating. For example, as shown in the patent with application number 202110843479.5, the water heating system includes a heating system, a driving mechanism and a water tank. A floor heating pipe is provided in the narrow space of the ship. Water is injected into the floor heating pipe, the heating system heats the water, and the driving mechanism drives the water to circulate, so that the higher temperature water enters the floor heating pipe to achieve the heating effect. Among them, the heating system mostly adopts electric heating, which consumes a lot of electricity, and the ship engine needs to be cooled with seawater during operation. After cooling by seawater, the higher temperature seawater is directly discharged into the sea, which is undoubtedly a waste of energy.

[0003] Based on this, the present invention is designed. Summary of the Invention

[0004] The main purpose of the present invention is to propose a shipborne thermal energy conversion device and a method of use, aiming to solve the problem that the heat energy generated by the ship engine is not utilized by the existing shipborne thermal energy conversion device, resulting in high energy consumption of the shipborne thermal energy conversion device.

[0005] To solve the above problems, the present invention proposes a shipborne thermal energy conversion device, comprising a heating circuit and a heating branch. The heating circuit is provided with a radiator, a water container pressurizing device, a drive mechanism, and a heating system in sequence along the direction of liquid flow. The liquid inlet end of the radiator is provided with a second temperature detection device.

[0006] The heating branch is connected in parallel with the heating system to the heating circuit. A heat exchanger is provided on the heating branch. A temperature detection device 1 is provided at the liquid outlet of the heat exchanger. The heat exchanger can exchange heat with the engine. The engine is provided with a temperature detection device 3.

[0007] The shipborne thermal energy conversion device also includes a control center. The temperature data detected by the temperature detection device 1, the temperature detection device 2 and the temperature detection device 3 are transmitted to the control center. The control center controls the rotation of the motor to adjust the opening of the baffle according to the engine temperature. The opening of the baffle is detected by the angle sensor. When the engine temperature is high, the control center controls the thrust device to further reduce the temperature of the liquid entering the heat exchanger.

[0008] In one embodiment, the heating branch is connected to the heating circuit via a control valve, and the control valve is used to control the flow of liquid through the heating system and / or the heat exchanger.

[0009] In one embodiment, the control valve comprises:

[0010] A valve box, wherein the valve box is provided with a liquid inlet pipe and two liquid outlet pipes;

[0011] The baffle is rotatably mounted in the valve box, and the liquid outlet pipe can be blocked by the rotation of the baffle.

[0012] In one embodiment, the control valve also includes a motor and a rotating shaft, the motor is fixedly connected to the valve box, the rotating shaft is rotationally connected to the valve box, the baffle is fixedly connected to the rotating shaft, the output shaft of the motor is fixedly connected to the rotating shaft, and is used to drive the baffle to rotate around the rotating shaft, and the rotating shaft is provided with an angle detection device.

[0013] In one embodiment, a sealing gasket is provided on the side of the baffle that contacts the liquid outlet pipe.

[0014] In one embodiment, a cooling regulator is provided on the heating branch at the liquid inlet end of the heat exchanger for regulating the temperature of the liquid entering the heat exchanger.

[0015] In one embodiment, the cooling regulator includes a box body, in which a U-shaped tube is slidably installed, the turning point of the U-shaped tube is located outside the box body, the U-shaped tube is connected in series to the heating branch, the box body is located on the water surface, and the part of the U-shaped tube extending out of the box body can be extended underwater. The temperature of the liquid entering the heat exchanger is adjusted by controlling the length of the U-shaped tube extending out of the box body.

[0016] In one embodiment, the bend of the U-shaped tube is wrapped with a thermal insulation sleeve.

[0017] In one embodiment, a thrust device is fixedly provided on the box body, and a movable end of the thrust device is connected to the U-shaped tube, and is used to push the U-shaped tube to slide out or retract into the box body.

[0018] In addition, to solve the above problems, the present invention also proposes a method for heating shipborne equipment, which uses any of the above-mentioned shipborne heat energy conversion devices to perform the following steps:

[0019] Activate the drive mechanism to circulate the liquid in the heating circuit and then turn on the heating system;

[0020] After the engine is started, the liquid in the heating circuit is introduced into the heating branch.

[0021] Beneficial effects: The technical solution of the present invention provides a heating branch on the heating circuit, which uses the heating branch to send the heat energy generated during the operation of the engine to the radiator to serve the heating of the ship, thereby avoiding energy waste, cooling the engine, and reducing the energy consumption of the heating system. It is energy-saving, environmentally friendly, and practical.

[0022] In addition, the pressurizing device added to the heating branch can send the hot water in the heating circuit to the radiator for heat dissipation after the driving mechanism stops running, thereby utilizing the heat energy generated during the operation of the engine and achieving good energy-saving effects. 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 following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic structural diagram of the shipborne thermal energy conversion device of the present invention;

[0025] Figure 2 yes Figure 1 Schematic diagram of the structure of the control valve;

[0026] Figure 3 yes Figure 2 AA section view in;

[0027] Figure 4 yes Figure 1 Schematic diagram of the structure of the cooling regulator.

[0028] The following are the descriptions of the reference numerals:

[0029] 1. Heating circuit; 2. Radiator; 3. Water container pressurizing device; 4. Driving mechanism;

[0030] 5. Control valve; 50. Mounting plate; 51. Valve box; 52. Liquid inlet pipe; 53. Liquid outlet pipe 1; 54. Liquid outlet pipe 2; 55. Rotating shaft; 56. Baffle; 57. Sealing gasket; 58. Motor; 59. Rotation angle sensor;

[0031] 6. Temperature sensor 1; 7. Heating system; 8. Control center;

[0032] 9. Cooling regulator; 91. Box body; 92. Box cover; 93. Slide plate; 94. Thrust device; 95. U-shaped tube; 96. Thermal insulation sleeve; 97. Connecting hose; 98. Floating board;

[0033] 10. Temperature sensor 2; 11. Heat exchanger; 12. Heating branch; 13. Temperature sensor 3; 14. Engine. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0036] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] The present invention provides a shipborne thermal energy conversion device.

[0039] In one embodiment of the invention, Figure 1As shown, the shipborne heat energy conversion device includes a heating circuit 1 and a heating branch 12. The heating circuit 1 is provided with a radiator 2, a water container pressurizing device 3, a driving mechanism 4 and a heating system 7 in sequence along the liquid flow direction. The driving mechanism 4 is used to drive the liquid to circulate in the heating circuit 1. The common liquid is seawater. The heating system 7 is used to heat the liquid. The heated liquid enters the radiator 2 to dissipate heat and realize heating. The pressurizing device is used to send the hot water in the heating circuit 1 into the radiator 2 for heat dissipation after the driving mechanism 4 stops running, so as to make full use of the heat energy contained in the liquid.

[0040] In this embodiment, if Figure 1 As shown, the liquid inlet end of the radiator 2 is provided with a second temperature detection device for detecting the temperature of the liquid about to enter the radiator 2 .

[0041] In this embodiment, if Figure 1 As shown, the heating branch 12 is connected to the heating circuit 1 in parallel with the heating system 7. A heat exchanger 11 is provided on the heating branch 12. The heat exchanger 11 can exchange heat with the engine 14. On the one hand, it is used to cool the engine 14, and on the other hand, it takes away the heat energy generated by the engine 14. This part of heat flows into the heating circuit 1 through the heating branch 12 and then enters the radiator 2 for heat dissipation to achieve heating. Correspondingly, when the high-temperature liquid exchanged in the process of the heat exchanger 11 cooling the engine 14 is sufficient to supply the radiator 2 with heat dissipation to achieve heating, the heating system 7 does not need to work. At this time, the heating system 7 can be removed from the heating circuit 1. The high-temperature liquid in the heating circuit 1 is completely generated by heat exchange between the engine 14 and the heat exchanger 11. In this heating mode, since the heating system 7 is not working, the power consumption is extremely low, which not only avoids energy waste, but also reduces the energy consumption of the heating system 7, is energy-saving and environmentally friendly, and has good practicality.

[0042] In this embodiment, if Figure 1 As shown, the engine 14 is provided with a temperature detection device 3, and the temperature of the engine 14 is detected by the temperature detection device 3.

[0043] In this embodiment, in order to achieve the purpose of selectively removing the heating system 7 from the heating circuit 1, the heating branch 12 should be designed to be connected to the heating circuit 1 through the control valve 5. The control valve 5 is used to control the flow of liquid through the heating system 7 and / or the heat exchanger 11. When the engine 14 is just started, the residual heat of the engine 14 is not enough to provide enough high-temperature liquid for the radiator 2. At this time, the control valve 5 can be operated to control the liquid to flow only through the heating system 7 and not through the heating branch 12, and the heating system 7 provides high-temperature liquid for heating the shipborne equipment; after the engine 14 has been working for a period of time, it needs to be cooled by the heat exchanger 11, and the high-temperature liquid flowing out of the heat exchanger 11 is sufficient to meet the heating needs of the shipborne equipment. At this time, the control valve 5 can be operated to control the liquid to flow only through the heat exchanger 11 and not through the heating system 7. The heat exchanged by the engine 14 is used to provide high-temperature liquid for the heating circuit 1; in addition, in order to make the best use of the engine 14 waste heat, reducing the energy consumption of the heating system 7, the control valve 5 can be operated to control the liquid to flow through the heating system 7 and the heat exchanger 11 during the period from the time the engine 14 is just started to the time when the high-temperature liquid flowing out of the heat exchanger 11 is sufficient to meet the heating needs of the shipborne equipment and the heating system 7 is not needed to heat and provide high-temperature liquid. However, when the engine 14 is just started, the amount of liquid flowing through the heat exchanger 11 is less. As the running time of the engine 14 increases, the waste heat generated thereby becomes more and more. Accordingly, the heat exchanger 11 needs to absorb more heat. Therefore, the amount of liquid flowing through the heat exchanger 11 will gradually increase, but the liquid flow rate flowing through the radiator 2 is certain. Therefore, the amount of liquid flowing through the heating system 7 will gradually decrease until all the liquid flows through the heat exchanger 11 without passing through the heating system 7. At this time, the heating system 7 can be shut down. The above three modes cannot be achieved by conventional three-way valves, so the control valve 5 of this embodiment cannot adopt a conventional three-way valve.

[0044] In this embodiment, if Figure 1 As shown, the liquid outlet end of the heat exchanger 11 is provided with a temperature detection device 1, which detects the temperature of the liquid flowing out of the heat exchanger 11 by the temperature detection device 1. Since the liquid temperature at the liquid inlet end of the radiator 2 should usually be kept constant, the ratio of the liquid flow rates flowing through the heating system 7 and the heat exchanger 11 can be adjusted according to the temperature of the liquid flowing out of the heat exchanger 11. For example, if the temperature of the liquid flowing out of the heat exchanger 11 is higher and closer to the liquid temperature at the liquid inlet end of the radiator 2, the liquid flow rate flowing through the heat exchanger 11 can be increased and the liquid flow rate flowing through the heating system 7 can be reduced. Conversely, if the temperature of the liquid flowing out of the heat exchanger 11 is lower and has a large difference from the liquid temperature at the liquid inlet end of the radiator 2, the liquid flow rate flowing through the heat exchanger 11 can be reduced and the liquid flow rate flowing through the heating system 7 can be increased, so as to ensure that the liquid temperature and liquid flow rate at the liquid inlet end of the radiator 2 remain constant, thereby providing reliable heating services for ships.

[0045] In this embodiment, if Figure 2 and Figure 3As shown, the control valve 5 includes a valve box 51 with a cover and a baffle 56 arranged in the valve box 51. The valve box 51 is provided with a liquid inlet pipe 52 and two liquid outlet pipes, and the two liquid outlet pipes are respectively marked as liquid outlet pipe 1 53 and liquid outlet pipe 2 54. The liquid inlet pipe 52 is connected to the heating circuit 1, the liquid outlet pipe 1 53 is connected to the heating system 7, and the liquid outlet pipe 2 54 is connected to the heating branch 12. The baffle 56 is rotatably installed in the valve box 51. The baffle 56 can be rotated to gradually approach the liquid outlet pipe and eventually block the liquid outlet pipe. The baffle 56 gradually approaches the liquid outlet pipe to adjust the liquid flow entering the liquid outlet pipe, and the baffle 56 blocks the liquid outlet pipe to control the liquid flow direction.

[0046] Further, such as Figure 2 and Figure 3 As shown, a mounting plate 50 is fixedly provided on the lower surface of the valve box 51, and a motor 58 is fixedly provided on the mounting plate 50. The motor 58 is a brake motor 58. A rotating shaft 55 is rotatably installed in the valve box 51. One end of the rotating shaft 55 is connected to the motor 58 for transmission. The motor 58 drives the rotating shaft 55 to rotate. The baffle 56 is fixedly connected to the rotating shaft 55 and drives the baffle 56 to rotate around the rotating shaft 55 through the rotating shaft 55. Figure 3 As shown, a baffle 56 is provided at the entrance of each of the liquid outlet pipe 1 53 and the liquid outlet pipe 2 54. The two baffles 56 are independently driven by a motor 58 without affecting each other. The flow of liquid entering the liquid outlet pipe is adjusted by controlling the rotation of the motor 58 to drive the baffle 56 to rotate until the baffle 56 blocks the liquid outlet pipe.

[0047] Furthermore, a sealing gasket 57 is provided on the baffle 56 , and the sealing gasket 57 can be pressed against the liquid outlet pipe under the action of the baffle 56 , thereby enhancing the sealing performance of the liquid outlet pipe.

[0048] In this embodiment, if Figure 2 As shown, a rotation angle detection device is installed on the output shaft or the rotating shaft 55 of the motor 58 for detecting the rotation angle of the rotating shaft 55 so as to accurately control the rotation angle of the baffle 56 and realize accurate regulation of the flow rate in the liquid outlet pipe.

[0049] In this embodiment, if Figure 1 As shown, a cooling regulator 9 is provided at the liquid inlet end of the heat exchanger 11 on the heating branch 12 for regulating the temperature of the liquid entering the heat exchanger 11. When the engine 14 has too much residual heat, causing the temperature to rise, and the heat exchanger 11 is insufficient to effectively cool the engine 14, it is necessary to further lower the temperature of the liquid entering the heat exchanger 11 so that the heat exchanger 11 can reliably and effectively cool the engine 14.

[0050] In order to achieve the purpose of lowering the temperature of the liquid entering the heat exchanger 11 as needed, Figure 1As shown, a cooling regulator 9 is provided at the liquid inlet end of the heat exchanger 11 on the heating branch 12. The cooling regulator 9 can choose whether to lower the temperature of the liquid entering the heat exchanger 11 according to whether the temperature of the engine 14 detected by the temperature detection device 3 is normal. For example, when the heat exchanger 11 can reliably and effectively cool the engine 14, the temperature of the engine 14 is in the normal range. At this time, the cooling regulator 9 does not need to further lower the temperature of the liquid entering the heat exchanger 11. On the contrary, when the temperature of the engine 14 rises and the heat exchanger 11 is not sufficient to reliably and effectively cool the engine 14, the cooling regulator 9 can be controlled to further lower the temperature of the liquid entering the heat exchanger 11, so that the heat exchanger 11 can reliably and effectively cool the engine 14.

[0051] In this embodiment, if Figure 4 As shown, the cooling regulator 9 includes a box body 91, in which a U-shaped tube 95 is slidably installed. The turning point of the U-shaped tube 95 is located outside the box body 91. The U-shaped tube 95 is connected in series to the heating branch 12. The box body 91 is located at the water surface. The part of the U-shaped tube 95 extending from the box body 91 can be extended underwater. The temperature of the liquid entering the heat exchanger 11 is adjusted by controlling the length of the U-shaped tube 95 extending from the box body 91. For example, Figure 4 As shown, the lower surface of the box body 91 is located at the water surface, and the turning point of the U-shaped tube 95 is located below the water surface. When the U-shaped tube 95 moves downward in the box body 91, the length thereof extending from the lower surface of the box body 91 gradually increases. Accordingly, the area in contact with water of the U-shaped tube 95 gradually increases, and the heat exchange efficiency between the liquid in the U-shaped tube 95 and the external cooling water gradually increases, so that the temperature of the liquid flowing through the U-shaped tube 95 further decreases. Conversely, when the U-shaped tube 95 moves upward in the box body 91, the area in contact with water gradually decreases, so that the temperature of the liquid flowing through the U-shaped tube 95 gradually increases.

[0052] In this embodiment, the box body 91 can be fixed on the ship or float on the water. When it floats on the water, in order to ensure that the box body 91 is upright and does not fall over, Figure 4 As shown, a large-area floating plate 98 can be fixed on the lower surface of the box body 91 to keep the box body 91 vertical with the help of the floating plate 98.

[0053] Preferably, the bend of the U-shaped tube 95 can directly extend into the seawater, so that the vast seawater can exchange heat with the liquid in the U-shaped tube 95, thereby further reducing the temperature of the liquid in the U-shaped tube 95.

[0054] In this embodiment, further, in order to facilitate the control of the U-shaped tube 95 sliding up and down in the box body 91, as shown in FIG. Figure 4As shown, a box cover 92 is sealed and fixed on the upper surface of the box body 91, and a thrust device 94 is vertically fixed on the box cover 92. A slide plate 93 is slidably installed in the box body 91. Both ends of the U-shaped tube 95 are fixed on the slide plate 93 and connected to the heating branch 12 through a connecting hose 97. The thrust device 94 is controlled to drive the U-shaped tube 95 to slide up and down in the box body 91 to adjust the length of the U-shaped tube 95 extending out of the box body 91.

[0055] Furthermore, in this embodiment, when the outside temperature is low and the temperature of the engine 14 is not too high, and the heat exchanger 11 cannot reliably and effectively cool the engine 14, a thermal insulation sleeve 96 can be wrapped around the bend of the U-shaped tube 95. Accordingly, the box body 91 can be made of thermal insulation material to reduce heat loss and improve the heat utilization efficiency of the liquid in the heating branch 12.

[0056] Preferably, the temperature detection device 1, the temperature detection device 2 and the temperature detection device 3 all use temperature sensors, and the thrust device 94 uses a linear motor.

[0057] In this embodiment, if Figure 1 As shown, the shipboard thermal energy conversion device further includes a control center 8. The temperature data detected by the temperature detection device 1, the temperature detection device 2, and the temperature detection device 3 are transmitted to the control center 8. The control center 8 controls the motor 58 to rotate and adjust the opening of the baffle 56 according to the temperature of the engine 14, so as to maximize the use of the heat generated by the operation of the engine 14 while ensuring a constant temperature entering the radiator 2, thereby achieving the purpose of energy saving. In addition, the opening of the baffle 56 is detected by the angle sensor 59. When the temperature of the engine 14 is high, the control center 8 controls the thrust device 94 to further reduce the temperature of the liquid entering the heat exchanger 11.

[0058] In addition, to solve the above problems, the present invention also proposes a method for heating shipborne equipment, which uses any of the above-mentioned shipborne heat energy conversion devices to perform the following steps:

[0059] S1, start the driving mechanism 4 to circulate the liquid in the heating circuit 1, and then turn on the heating system 7;

[0060] S2 . After the engine 14 is started, the liquid in the heating circuit 1 is introduced into the heating branch 12 .

[0061] Furthermore, in this embodiment, S2 can control the flow of liquid introduced into the heating branch 12 according to the temperature of the engine 14, and dynamically adjust the flow of liquid flowing through the heating system 7 to ensure that the flow and temperature of the liquid entering the radiator 2 are constant.

[0062] In this embodiment, when the flow rate of the liquid flowing through the heating system 7 decreases, the heating power of the heating system 7 also decreases. When the heat generated by the engine 14 is sufficient to supply the shipboard thermal energy conversion device, the heating system 7 can be turned off and isolated from the heating circuit 1. Only the engine 14 is used to heat the high-temperature liquid for the shipboard thermal energy conversion device.

[0063] In this embodiment, when the temperature of the engine 14 is too high in S2 , the temperature of the liquid entering the heat exchanger 11 is further reduced.

[0064] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A shipborne thermal energy conversion device, characterized in that: It includes a heating circuit and a heating branch. The heating circuit is provided with a radiator, a water volume pressurizing device, a driving mechanism and a heating system in sequence along the liquid flow direction. The liquid inlet end of the radiator is provided with a second temperature detection device; The heating branch is connected in parallel with the heating system to the heating circuit. A heat exchanger is provided on the heating branch. A temperature detection device 1 is provided at the liquid outlet of the heat exchanger. The heat exchanger can exchange heat with the engine. The engine is provided with a temperature detection device 3. The shipboard heat energy conversion device also includes a control center. The temperature data detected by the temperature detection device 1, the temperature detection device 2, and the temperature detection device 3 are transmitted to the control center. The control center controls the motor to rotate and adjust the opening of the damper according to the engine temperature. The opening of the damper is detected by the angle sensor. When the engine temperature is high, the control center controls the thrust device to further reduce the temperature of the liquid entering the heat exchanger. The heating branch is connected to the heating circuit via a control valve, and the control valve is used to control the flow of liquid through the heating system and / or the heat exchanger; The control valve comprises: a valve box, on which a liquid inlet pipe and two liquid outlet pipes are provided; a baffle rotatably mounted in the valve box, and the baffle can be rotated to block the liquid outlet pipes; The control valve further includes a motor and a rotating shaft, wherein the motor is fixedly connected to the valve box, the rotating shaft is rotatably connected to the valve box, the baffle is fixedly connected to the rotating shaft, and the output shaft of the motor is fixedly connected to the rotating shaft for driving the baffle to rotate around the rotating shaft, and the rotating shaft is provided with a rotation angle detection device; The heating branch is provided with a cooling regulator at the liquid inlet end of the heat exchanger for regulating the temperature of the liquid entering the heat exchanger; The cooling regulator includes a box body, a U-shaped tube is slidably mounted in the box body, the U-shaped tube has a bend located outside the box body, the U-shaped tube is connected in series to the heating branch, the box body is located at the water surface, and the portion of the U-shaped tube extending from the box body can be extended underwater. The temperature of the liquid entering the heat exchanger is adjusted by controlling the length of the U-shaped tube extending from the box body. A thrust device is fixedly provided on the box body, and a movable end of the thrust device is connected to the U-shaped tube and is used to push the U-shaped tube to slide out or retract into the box body.

2. The shipborne thermal energy conversion device according to claim 1, characterized in that: A sealing gasket is provided on the side of the baffle that contacts the liquid outlet pipe.

3. The shipborne thermal energy conversion device according to claim 1, characterized in that: The turning part of the U-shaped tube is covered with a heat-insulating sleeve.

4. A method for heating shipborne equipment, characterized in that: The shipborne thermal energy conversion device according to any one of claims 1 to 3 is used to perform the following steps: Activate the drive mechanism to circulate the liquid in the heating circuit and then turn on the heating system; After the engine is started, the liquid in the heating circuit is introduced into the heating branch.

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