Ice-class ship heating system

Abstract

This utility model discloses a heating system for ships in ice-covered areas, including a hot water source connected to a first water-using end via a supply pipe. The first water-using end is connected to the hot water source via a return pipe. A first heat exchanger is installed in a first compartment. The inlet of the first heat exchanger is connected to the supply pipe via a first connecting pipe, and the outlet of the first heat exchanger is connected to the supply pipe via a second connecting pipe. The connection end between the first connecting pipe and the supply pipe is called the first connection end, and the connection end between the second connecting pipe and the supply pipe is called the second connection end. The first connection end is located on the side of the second connection end away from the hot water source. A first valve is installed on the first connecting pipe, and a second valve is installed on the supply pipe. This heating system for ships in ice-covered areas can divert the hot water circulating between the hot water source and the first water-using end to flow through the first heat exchanger, and dissipate the heat from the hot water into the first compartment, effectively increasing the temperature inside the first compartment.

Description

Technical Field

[0001] This utility model relates to the field of marine technology, and in particular to a heating system for ships in ice-covered areas. Background Technology

[0002] Due to the cold climate in polar ice regions, ships sailing in ice-covered areas need to heat and insulate some cabins to prevent equipment malfunctions or personnel from freezing due to excessively cold interiors.

[0003] Currently, ships in ice-covered areas often use air conditioning or steam systems for heating. However, in extremely harsh and cold weather conditions, the temperature rise of air conditioning and steam systems is limited, and they may not be able to effectively supply enough heat to achieve the desired cold-weather effect, affecting the service life of equipment in the cabin and resulting in low comfort for personnel. Utility Model Content

[0004] The purpose of this utility model is to provide a heating system for ships in ice-covered areas. It has a simple structure and can use hot water flowing through the first heat exchanger to heat the first compartment, effectively ensuring the temperature inside the first compartment.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A heating system for ships operating in ice-covered areas is provided, comprising a first compartment equipped with an air conditioner capable of generating warm air. The system further includes a hot water source, a first pump body, a supply pipe, a return pipe, a first heat exchanger, a first connecting pipe, a second connecting pipe, a first valve, and a second valve. The hot water source is connected to a first water user via the supply pipe, and the first water user is connected to the hot water source via the return pipe. The first pump body is mounted on the supply pipe, and the first heat exchanger is mounted on the first compartment. The inlet of the first heat exchanger is connected to the supply pipe via the first connecting pipe, and the outlet of the first heat exchanger is connected to the supply pipe via the second connecting pipe. The connection end between the first connecting pipe and the supply pipe is a first connection end, and the connection end between the second connecting pipe and the supply pipe is a second connection end. The first connection end is located on the side of the second connection end furthest from the hot water source. The first valve is mounted on the first connecting pipe, and the second valve is mounted on the supply pipe, with the second valve located between the first connection end and the second connection end.

[0007] As a preferred option for a heating system for ships in ice-covered areas, the second connecting pipe is equipped with a one-way valve and / or a third valve.

[0008] As a preferred embodiment of a heating system for ships in ice-covered areas, the heating system for ships in ice-covered areas further includes a second water supply end, a third connecting pipe, a fourth connecting pipe, and a fourth valve. The second water supply end is connected to the water supply pipe through the third connecting pipe, and the fourth valve is installed on the third connecting pipe. The second water supply end is connected to the return pipe through the fourth connecting pipe.

[0009] As a preferred embodiment of a heating system for ships in ice-covered areas, the heating system further includes a second compartment, a second heat exchanger, a fifth connecting pipe, a sixth connecting pipe, and a fifth valve. The second compartment is also equipped with the second heat exchanger. The inlet of the second heat exchanger is connected to the third connecting pipe through the fifth connecting pipe, and the outlet of the second heat exchanger is connected to the third connecting pipe through the sixth connecting pipe. The connection end between the sixth connecting pipe and the third connecting pipe is the fourth connection end, and the connection end between the fifth connecting pipe and the third connecting pipe is the third connection end. The fourth connection end is located on the side of the third connection end away from the hot water source. The fifth connecting pipe is equipped with the fifth valve, and the fourth valve is located between the third connection end and the fourth connection end.

[0010] As a preferred embodiment of a heating system for ships in ice-covered areas, the sixth connecting pipe is equipped with a one-way valve and / or a sixth valve; and / or,

[0011] A one-way valve is installed on the return pipe, and the connection end of the fourth connecting pipe to the return pipe is the fifth connecting end. The one-way valve is located between the first water-using end and the fifth connecting end.

[0012] As a preferred embodiment of a heating system for ships in ice-covered areas, the inlet and outlet of the first heat exchanger are respectively a first inlet and a first outlet, which are respectively located on both sides of the first heat exchanger along a first direction. The first heat exchanger is provided with an inlet channel and an outlet channel spaced apart along the first direction. Both the inlet channel and the outlet channel extend along a second direction. The first inlet is connected to the inlet channel, and the first outlet is connected to the outlet channel. Multiple heat dissipation channels are arranged spaced apart along the second direction within the first heat exchanger. The length of each heat dissipation channel extends along the first direction, and both ends of each heat dissipation channel along the first direction are respectively connected to the inlet channel and the outlet channel. The first direction is perpendicular to the second direction.

[0013] As a preferred embodiment of a heating system for ships in ice-covered areas, the first inlet and the first outlet are arranged opposite to each other along the first direction, and the cross-sectional dimension of the heat dissipation channel adjacent to the first outlet is smaller than the cross-sectional dimension of the heat dissipation channel away from the first outlet.

[0014] As a preferred embodiment of a heating system for ships in ice-covered areas, the heating system for ships in ice-covered areas further includes an engine, a cold water source, a seventh connecting pipe, a second pump body, and a cylinder liner. The cold water source is connected to the hot water source through the seventh connecting pipe. The second pump body and the cylinder liner are installed on the seventh connecting pipe. The cylinder liner is fitted outside the engine. The engine is used to generate power to supply power for the operation of ships in ice-covered areas. The cold water in the cylinder liner can exchange heat with the engine for heating.

[0015] As a preferred embodiment of a heating system for ships in ice-covered areas, the water supply pipe includes a first main water supply pipe, a second main water supply pipe, a first branch water supply pipe, and a second branch water supply pipe. One end of the first main water supply pipe is connected to the hot water source, and one end of the second main water supply pipe is connected to the first water user. The other end of the first main water supply pipe is connected to the other end of the second main water supply pipe through the first branch water supply pipe and the second branch water supply pipe, which are arranged in parallel. The first branch water supply pipe is equipped with a first pump body. The heating system for ships in ice-covered areas also includes a third pump body, which is installed on the second branch water supply pipe.

[0016] As a preferred embodiment of a heating system for ships in ice-covered areas, the system further includes a temperature sensor and a controller. The temperature sensor is located in the first compartment. The temperature sensor, the first valve, and the second valve are electrically connected to the controller. The air conditioner is capable of generating a temperature C1 ≤ 40℃; and / or,

[0017] The temperature of the hot water source is C2, where 75℃≤C2≤80℃.

[0018] The beneficial effects of this utility model are as follows: By supplying heat to the first cabin with warm air generated by the air conditioner, the hot water circulating between the hot water source and the first water supply end can be introduced to the first heat exchanger and flow through it. The heat in the hot water is then dissipated into the first cabin through the first heat exchanger, which can effectively increase the temperature in the first cabin and avoid the problem of insufficient heating of the air conditioner and steam system under extremely cold conditions, thereby ensuring the normal operation of ship equipment and the comfort of personnel. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the process of the ship heating system in ice-covered areas according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the first heat exchanger in an embodiment of this utility model.

[0022] In the picture:

[0023] 100. First compartment; 200. First water supply point; 300. Second compartment; 400. Second water supply point;

[0024] 1. Hot water source; 2. First pump body; 3. Water supply pipe; 31. First main water supply pipe; 32. Second main water supply pipe; 33. First branch water supply pipe; 34. Second branch water supply pipe; 4. Return pipe; 5. First heat exchanger; 51. First inlet; 52. First outlet; 53. Inlet channel; 54. Outlet channel; 55. Heat dissipation channel; 6. First connecting pipe; 7. Second connecting pipe; 8. First valve; 9. Second valve; 10. First connecting end; 11. 11. Second connecting end; 12. Third valve; 13. Third connecting pipe; 14. Fourth connecting pipe; 15. Fourth valve; 16. Second heat exchanger; 17. Fifth connecting pipe; 18. Sixth connecting pipe; 19. Fifth valve; 20. Third connecting end; 21. Fourth connecting end; 22. Sixth valve; 23. Fifth connecting end; 24. Engine; 25. Cold water source; 26. Seventh connecting pipe; 27. Second pump body; 28. Cylinder liner; 29. ​​Third pump body. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] like Figure 1 and Figure 2 As shown, the ice-covered ship heating system of this utility model embodiment includes a first compartment 100, which is equipped with an air conditioner capable of generating warm air. The ice-covered ship heating system also includes a hot water source 1, a first pump body 2, a water supply pipe 3, a return pipe 4, a first heat exchanger 5, a first connecting pipe 6, a second connecting pipe 7, a first valve 8, and a second valve 9. The hot water source 1 is connected to a first water-using end 200 via the water supply pipe 3, and the first water-using end 200 is connected to the hot water source 1 via the return pipe 4. The first pump body 2 is installed on the water supply pipe 3, and the first compartment 100 is equipped with... The first heat exchanger 5 has its inlet connected to the water supply pipe 3 via a first connecting pipe 6, and its outlet connected to the water supply pipe 3 via a second connecting pipe 7. The connection end between the first connecting pipe 6 and the water supply pipe 3 is the first connecting end 10, and the connection end between the second connecting pipe 7 and the water supply pipe 3 is the second connecting end 11. The first connecting end 10 is located on the side of the second connecting end 11 away from the hot water source 1. A first valve 8 is provided on the first connecting pipe 6, and a second valve 9 is provided on the water supply pipe 3, with the second valve 9 located between the first connecting end 10 and the second connecting end 11.

[0030] Understandably, by supplying heat to the first compartment 100 with warm air generated by the air conditioner, the hot water circulating between the hot water source 1 and the first water supply end 200 can be diverted to the first heat exchanger 5 and allowed to dissipate the heat from the hot water into the first compartment 100. This effectively increases the temperature inside the first compartment 100, avoiding insufficient heating from the air conditioner and steam system under extremely cold conditions, thus ensuring the normal operation of ship equipment and the comfort of personnel.

[0031] It is important to emphasize that due to the limited freshwater resources on ships in ice-covered areas, the second pump 27 is always in a driven state to ensure an immediate supply of hot water to the user end. This ensures a continuous flow of hot water in the hot water return system consisting of hot water source 1, supply pipe 3, first user end 200, and return pipe 4. Therefore, when the heat supply in the first compartment 100 is insufficient, simply close the second valve 9 and open the first valve 8 to allow the hot water in the supply pipe 3 to flow to the first heat exchanger 5 for heat dissipation, thereby raising the temperature in the first compartment 100. This means that the circulating hot water supply simultaneously raises the temperature in the first compartment 100, making more efficient use of energy and providing sufficient heat under extremely cold conditions, thus improving overall energy efficiency and reducing energy waste. Conversely, when the temperature in the first compartment 100 is sufficient, the first valve 8 should be closed and the second valve 9 opened to reduce heat loss from the hot water in the supply pipe 3. By setting the first valve 8 and the second valve 9, the flow rate of hot water can be flexibly adjusted, further optimizing the heating effect, avoiding heat waste or insufficient heat, ensuring the optimal operating state of the system under different usage conditions, enhancing the stability and reliability of the heating system, and ensuring stable operation in different environments.

[0032] Furthermore, a one-way valve is installed on the second connecting pipe 7 to prevent hot water from flowing from the second connecting pipe 7 into the first heat exchanger 5 when the flow rate after the first valve 8 is opened is less than the flow rate after the second valve 9 is opened, which would cause hot water flow turbulence and affect the transfer of hot water heat.

[0033] Optionally, such as Figure 1 As shown, a third valve 12 is installed on the second connecting pipe 7, which allows the first valve 8 and the third valve 12 to be closed when the first heat exchanger 5 is not in use. This closes both ends of the first heat exchanger 5, preventing hot water in the water supply pipe 3 from flowing to the first heat exchanger 5 through the sixth connecting pipe 18, thus preventing heat loss from the hot water. Of course, a one-way valve and the third valve 12 can be installed on the sixth connecting pipe 18 simultaneously.

[0034] In this embodiment, as Figure 1As shown, the ice-covered ship heating system also includes a second water supply terminal 400, a third connecting pipe 13, a fourth connecting pipe 14, and a fourth valve 15. The second water supply terminal 400 is connected to the water supply pipe 3 via the third connecting pipe 13, and the fourth valve 15 is installed on the third connecting pipe 13. The second water supply terminal 400 is connected to the return pipe 4 via the fourth connecting pipe 14. Hot water is supplied to the second water supply terminal 400 through a hot water return system consisting of the same hot water source 1, water supply pipe 3, first water supply terminal 200, and return pipe 4, reducing the complex layout of the ship's water supply pipeline and improving the utilization rate of the hot water return system. Unused hot water after flowing through the second water supply terminal 400 is connected to the return pipe 4 via the fourth connecting pipe 14, effectively ensuring the heat of the hot water in the water supply pipe 3 and preventing hot water that has lost some heat during the flow process from flowing back to the water supply pipe 3 and affecting the use of the first heat exchanger 5 or the first water supply terminal 200. In this plan, the first compartment 100 is the cockpit, and the second compartment 300 is the conference room. Of course, it can also be other work compartments, and no further restrictions are made here.

[0035] Optionally, the heating system for ships in ice-covered areas is provided with multiple second water terminals 400, and a third connecting pipe 13 connected to the multiple second water terminals 400 is connected in parallel on the water supply pipe 3, and a fourth connecting pipe 14 connected to the multiple second water terminals 400 is connected in parallel on the return pipe 4.

[0036] Furthermore, the heating system for ice-covered ships also includes a second compartment 300, a second heat exchanger 16, a fifth connecting pipe 17, a sixth connecting pipe 18, and a fifth valve 19. The second compartment 300 is also equipped with a second heat exchanger 16. The inlet of the second heat exchanger 16 is connected to the third connecting pipe 13 through the fifth connecting pipe 17, and the outlet of the second heat exchanger 16 is connected to the third connecting pipe 13 through the sixth connecting pipe 18. The connection end between the sixth connecting pipe 18 and the third connecting pipe 13 is the fourth connection end 21, and the connection end between the fifth connecting pipe 17 and the third connecting pipe 13 is the third connection end 20. The fourth connection end 21 is located on the side of the third connection end 20 away from the hot water source 1. The fifth connecting pipe 17 is equipped with a fifth valve 19, and the fourth valve 15 is located between the third connection end 20 and the fourth connection end 21. The hot water circulating between the hot water source 1 and the second water terminal 400 is led to the second heat exchanger 16 and flows through it. The heat in the hot water is then dissipated into the second compartment 300 through the second heat exchanger 16, which can effectively increase the temperature inside the second compartment 300.

[0037] Optionally, a check valve and a sixth valve 22 are provided on the sixth connecting pipe 18 to prevent hot water in the third connecting pipe 13 from flowing from the sixth connecting pipe 18 to the second heat exchanger 16 when the hot water flow in the second heat exchanger 16 is low or stops, thereby reducing heat loss of the hot water in the third connecting pipe 13. Of course, only a check valve or a sixth valve 22 can be provided on the sixth connecting pipe 18.

[0038] Preferably, a one-way valve is provided on the return pipe 4, and the connection end of the fourth connecting pipe 14 and the return pipe 4 is the fifth connecting end 23. The one-way valve is located between the first water end 200 and the fifth connecting end 23, which can effectively prevent unused hot water flowing to the second water end 400 from flowing back to the return pipe 4 through the fourth connecting pipe 14 in a direction away from the hot water source 1, thus ensuring that the hot water flows in the correct direction in an orderly manner.

[0039] In some embodiments, such as Figure 2 As shown, the inlet and outlet of the first heat exchanger 5 are a first inlet 51 and a first outlet 52, respectively. The first inlet 51 and the first outlet 52 are respectively located on both sides of the first heat exchanger 5 along a first direction (the first direction is the X direction shown in the figure). The first heat exchanger 5 is provided with an inlet channel 53 and an outlet channel 54 at intervals along the first direction. The inlet channel 53 and the outlet channel 54 both extend along a second direction (the second direction is the Y direction shown in the figure). The first inlet 51 communicates with the inlet channel 53, and the first outlet 52 communicates with the outlet channel 54. The first heat exchanger 5 is provided with a plurality of heat dissipation channels 55 at intervals along the second direction. The length of the heat dissipation channel 55 extends along the first direction, and the two ends of the heat dissipation channel 55 along the first direction are respectively connected to the inlet channel 53 and the outlet channel 54. The first direction is perpendicular to the second direction.

[0040] By setting multiple heat dissipation channels 55 at intervals, the area for hot water to dissipate heat can be effectively increased, ensuring that the ship can continuously and stably supply sufficient heat in cold environments. Furthermore, the arrangement of the inlet and inlet channel 53, and the outlet and outlet channel 54 optimizes the hot water flow path, making the hot water flow smoother, reducing flow resistance, and avoiding dead zones or obstructed flow, thus further improving the system's thermal efficiency.

[0041] Furthermore, the first inlet 51 and the first outlet 52 are arranged opposite each other along the first direction, and the cross-sectional dimension of the heat dissipation channel 55 adjacent to the first outlet 52 is smaller than the cross-sectional dimension of the heat dissipation channel 55 away from the first outlet 52. The spacing arrangement of the heat dissipation channels 55 in the heat exchanger can ensure that heat is evenly distributed to the entire system, and the heat dissipation channels 55 extend along the first direction, so that heat can be effectively transferred to each area, thereby improving the heat dissipation effect of the system. At the same time, it can be understood that the flow velocity of the heat dissipation channel 55 adjacent to the first inlet 51 is faster, and the flow velocity of the heat dissipation channel 55 away from the first inlet 51 is slower. Therefore, by controlling the cross-sectional dimension of the heat dissipation channel 55 adjacent to the first outlet 52 to be smaller than the cross-sectional dimension of the heat dissipation channel 55 away from the first outlet 52, the heat dissipation effect of the hot water flowing in each heat dissipation channel is as consistent as possible, avoiding local overheating or undercooling.

[0042] Furthermore, the ice-covered vessel heating system also includes an engine 24, a cold water source 25, a seventh connecting pipe 26, a second pump body 27, and a cylinder liner 28. The cold water source 25 is connected to the hot water source 1 via the seventh connecting pipe 26. The second pump body 27 and the cylinder liner 28 are mounted on the seventh connecting pipe 26. The cylinder liner 28 is fitted outside the engine 24. The engine 24 generates power to supply the vessel's operation in ice-covered conditions. The cold water inside the cylinder liner 28 can exchange heat with the engine 24 for heating. The engine 24 itself generates a lot of heat, so the cylinder liner 28 is used to heat the cold water flowing from the cold water source 25 to the hot water source 1, reducing the energy consumption for heating the cold water. Of course, the cylinder liner 28 only serves as a preheater for the cold water; heating elements are still installed inside the hot water source 1 for full heating.

[0043] In other embodiments, such as Figure 1 As shown, the water supply pipe 3 includes a first main water supply pipe 31, a second main water supply pipe 32, a first branch water supply pipe 33, and a second branch water supply pipe 34. One end of the first main water supply pipe 31 is connected to the hot water source 1, and one end of the second main water supply pipe 32 is connected to the first water user 200. The other end of the first main water supply pipe 31 is connected to the other end of the second main water supply pipe 32 through the first branch water supply pipe 33 and the second branch water supply pipe 34, which are connected in parallel. A first pump body 2 is installed on the first branch water supply pipe 33. The ice-covered ship heating system also includes a third pump body 29, which is installed on the second branch water supply pipe 34. Under normal operating conditions, only the first pump body 2 or the third pump body 29 needs to be turned on to ensure the power for heat flow in the water supply pipe 3. Through the parallel arrangement of the first pump body 2 and the third pump body 29, the system can maintain the normal operation of a certain branch water supply line even if a fault occurs in one branch water supply line or the pump body needs maintenance, increasing the reliability and stability of the water supply from the water supply pipe 3. At the same time, by setting up water supply branch pipes in parallel, the water flow between the two water supply branch pipes can be balanced, avoiding overload or uneven water flow in a single pipe, and improving the overall operating efficiency of the water supply pipe 3.

[0044] Furthermore, the ice-cold vessel heating system also includes a temperature sensor and a controller. The temperature sensor is located inside the first compartment 100. The temperature sensor, the first valve 8, and the second valve 9 are electrically connected to the controller. The air conditioner can generate a temperature C1 ≤ 40℃. Through real-time monitoring by the temperature sensor, the controller can automatically control the opening and closing of the first valve 8 and the second valve 9, realizing automatic temperature regulation inside the first compartment 100, reducing manual intervention, and improving the ease of operation and accuracy of the ice-cold vessel heating system. For example, if the air conditioner always maintains a heating supply of 40℃, excessively high temperatures can easily cause injury to personnel. When the temperature inside the first compartment 100 drops below -20℃, the heating supply from the air conditioner can no longer meet the heat demand inside the first compartment 100. In this case, the controller controls the first valve 8 to open and the second valve 9 to close, so that the first heat exchanger 5 can dissipate heat to raise the temperature inside the first compartment 100.

[0045] Optionally, the temperature of hot water source 1 is C2, where 75°C ≤ C2 ≤ 80°C. For example, the temperature of C2 can be 75°C, 76°C, 77°C, 78°C, 79°C, 80°C, etc. This temperature is adaptable and avoids energy waste caused by excessively high or low temperature settings. Especially in polar or cold environments, reasonable temperature control can reduce unnecessary energy consumption and improve the overall energy-saving effect of the system.

[0046] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A heating system for ships in ice-covered areas, comprising a first compartment, wherein an air conditioner is installed in the first compartment, the air conditioner being capable of generating warm air, characterized in that, The ice-covered ship heating system further includes a hot water source, a first pump body, a water supply pipe, a return pipe, a first heat exchanger, a first connecting pipe, a second connecting pipe, a first valve, and a second valve. The hot water source is connected to a first water-using end through the water supply pipe, and the first water-using end is connected to the hot water source through the return pipe. The first pump body is installed on the water supply pipe, and the first heat exchanger is installed on the first compartment. The inlet of the first heat exchanger is connected to the water supply pipe through the first connecting pipe, and the outlet of the first heat exchanger is connected to the water supply pipe through the second connecting pipe. The connection end between the first connecting pipe and the water supply pipe is the first connection end, and the connection end between the second connecting pipe and the water supply pipe is the second connection end. The first connection end is located on the side of the second connection end away from the hot water source. The first valve is installed on the first connecting pipe, and the second valve is installed on the water supply pipe, with the second valve located between the first connection end and the second connection end.

2. The ice-covered ship heating system according to claim 1, characterized in that, The second connecting pipe is equipped with a check valve and / or a third valve.

3. The ice-covered ship heating system according to claim 1, characterized in that, The ice zone ship heating system also includes a second water supply end, a third connecting pipe, a fourth connecting pipe, and a fourth valve. The second water supply end is connected to the water supply pipe through the third connecting pipe, and the fourth valve is installed on the third connecting pipe. The second water supply end is connected to the return pipe through the fourth connecting pipe.

4. The ice-covered ship heating system according to claim 3, characterized in that, The ice-covered ship heating system further includes a second compartment, a second heat exchanger, a fifth connecting pipe, a sixth connecting pipe, and a fifth valve. The second compartment is also equipped with the second heat exchanger. The inlet of the second heat exchanger is connected to the third connecting pipe through the fifth connecting pipe, and the outlet of the second heat exchanger is connected to the third connecting pipe through the sixth connecting pipe. The connection end between the sixth connecting pipe and the third connecting pipe is the fourth connection end, and the connection end between the fifth connecting pipe and the third connecting pipe is the third connection end. The fourth connection end is located on the side of the third connection end away from the hot water source. The fifth connecting pipe is equipped with the fifth valve, and the fourth valve is located between the third connection end and the fourth connection end.

5. The ice-covered ship heating system according to claim 4, characterized in that, The sixth connecting pipe is equipped with a one-way valve and / or a sixth valve; and / or, A one-way valve is installed on the return pipe, and the connection end of the fourth connecting pipe to the return pipe is the fifth connecting end. The one-way valve is located between the first water-using end and the fifth connecting end.

6. The ice-covered ship heating system according to any one of claims 1-5, characterized in that, The first heat exchanger has a water inlet and a water outlet, which are respectively a first water inlet and a first water outlet. The first water inlet and the first water outlet are respectively located on both sides of the first heat exchanger along a first direction. The first heat exchanger has an inlet channel and an outlet channel spaced apart along the first direction. The inlet channel and the outlet channel both extend along a second direction. The first water inlet is connected to the inlet channel, and the first water outlet is connected to the outlet channel. The first heat exchanger has multiple heat dissipation channels spaced apart along the second direction. The length of the heat dissipation channel extends along the first direction, and the two ends of the heat dissipation channel along the first direction are respectively connected to the inlet channel and the outlet channel. The first direction is perpendicular to the second direction.

7. The ice-covered ship heating system according to claim 6, characterized in that, The first water inlet and the first water outlet are arranged opposite each other along the first direction, and the cross-sectional dimension of the heat dissipation channel adjacent to the first water outlet is smaller than the cross-sectional dimension of the heat dissipation channel away from the first water outlet.

8. The ice-covered ship heating system according to any one of claims 1-5, characterized in that, The ice-covered vessel heating system also includes an engine, a cold water source, a seventh connecting pipe, a second pump body, and a cylinder liner. The cold water source is connected to the hot water source through the seventh connecting pipe. The second pump body and the cylinder liner are installed on the seventh connecting pipe. The cylinder liner is fitted outside the engine. The engine is used to generate power to supply power to the ice-covered vessel. The cold water in the cylinder liner can exchange heat with the engine for heating.

9. The ice-covered ship heating system according to any one of claims 1-5, characterized in that, The water supply pipe includes a first main water supply pipe, a second main water supply pipe, a first branch water supply pipe, and a second branch water supply pipe. One end of the first main water supply pipe is connected to the hot water source, and one end of the second main water supply pipe is connected to the first water user. The other end of the first main water supply pipe is connected to the other end of the second main water supply pipe through the first branch water supply pipe and the second branch water supply pipe, which are arranged in parallel. The first pump body is installed on the first branch water supply pipe. The ice zone ship heating system also includes a third pump body, which is installed on the second branch water supply pipe.

10. The ice-covered ship heating system according to any one of claims 1-5, characterized in that, The ice-zone ship heating system also includes a temperature sensor and a controller. The temperature sensor is located in the first compartment. The temperature sensor, the first valve, and the second valve are electrically connected to the controller. The air conditioner is capable of generating a temperature C1 ≤ 40℃; and / or, The temperature of the hot water source is C2, where 75℃≤C2≤80℃.

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