Fresh water cooling circulation system and ship

Abstract

The invention relates to the technical field of ships, in particular to a fresh water cooling circulation system and a ship, the fresh water cooling circulation system comprises a fresh water circulation cabin, and the fresh water circulation cabin is provided with a cold water cavity and a hot water cavity; a water inlet of the fresh water cooling pump is communicated with the cold water cavity, and a water outlet of the fresh water cooling pump is communicated with to-be-cooled equipment of the ship; the three-way temperature control valve is used for controlling the inlet water temperature of the fresh water cooling pump, a first port of the three-way temperature control valve is communicated with a water outlet of the to-be-cooled equipment, a second port of the three-way temperature control valve is communicated with a water inlet of the fresh water cooling pump, and a third port of the three-way temperature control valve is communicated with the hot water cavity; a water inlet of the circulating cooling pump is communicated with the hot water cavity, a water outlet of the circulating cooling pump is communicated with the ballast tank and the void tank, and the ballast tank and the void tank are communicated with the cold water cavity. The heat energy of fresh water can be utilized, and the economical efficiency of ship building can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and in particular to a fresh water cooling circulation system and a ship. Background Art

[0002] Polar ship designs currently utilize conventional cooling. This involves pumping seawater from the seawater tank using a seawater pump. The seawater and freshwater then exchange heat in a central cooler, where the heat is absorbed by the seawater and discharged overboard. This equipment requires a seawater pump, a central cooler, and a freshwater pump.

[0003] In the above method, after the fresh water is heat-exchanged with seawater, the heated seawater is discharged overboard, wasting the thermal energy of the fresh water. In addition, a central cooler with seawater corrosion resistance needs to be arranged, which increases the construction cost of the ship.

[0004] Therefore, a fresh water cooling circulation system and a ship are needed to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a fresh water cooling circulation system and a ship, which can utilize the thermal energy of fresh water and improve the economy of ship construction.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Fresh water cooling circulation system, including:

[0008] A fresh water circulation chamber, wherein the fresh water circulation chamber has a cold water chamber and a hot water chamber;

[0009] a fresh water cooling pump, wherein the water inlet of the fresh water cooling pump is connected to the cold water chamber, and the water outlet of the fresh water cooling pump is connected to the equipment to be cooled on the ship;

[0010] a three-way temperature control valve, the three-way temperature control valve being used to control the water inlet temperature of the fresh water cooling pump, wherein a first port of the three-way temperature control valve is connected to the water outlet of the equipment to be cooled, a second port of the three-way temperature control valve is connected to the water inlet of the fresh water cooling pump, and a third port of the three-way temperature control valve is connected to the hot water chamber;

[0011] A circulating cooling pump, wherein the water inlet of the circulating cooling pump is connected to the hot water chamber, the water outlet of the circulating cooling pump is connected to the ballast tank and the empty tank, and the ballast tank and the empty tank are connected to the cold water chamber.

[0012] In some embodiments, a temperature sensing probe is provided at the water inlet of the fresh water cooling pump, and the temperature sensing probe is electrically connected to the three-way temperature control valve.

[0013] In some embodiments, at least two of the fresh water cooling pumps are included, and the at least two fresh water cooling pumps are arranged in parallel.

[0014] In some embodiments, at least two circulating cooling pumps are included, and at least two circulating cooling pumps are arranged in parallel.

[0015] In some embodiments, an isolation chamber is provided in the fresh water circulation chamber along a vertical direction, and the isolation chamber separates the fresh water circulation chamber into the cold water chamber and the hot water chamber.

[0016] In some embodiments, an overflow pipe is provided at the upper end of the isolation chamber, and the overflow pipe connects the cold water chamber and the hot water chamber.

[0017] In some embodiments, a first stop valve is provided at the water inlet of the fresh water cooling pump, and a first check stop valve is provided at the water outlet of the fresh water cooling pump.

[0018] In some embodiments, a second stop valve is provided at the water inlet of the circulating cooling pump, and a second check stop valve is provided at the water outlet of the circulating cooling pump.

[0019] In some embodiments, a first air vent is provided at the upper end of the fresh water circulation chamber, and the first air vent is connected to both the cold water chamber and the hot water chamber.

[0020] A ship comprises a hull and the above-mentioned fresh water cooling circulation system, wherein the fresh water cooling circulation system is arranged in the hull.

[0021] Beneficial effects of the present invention:

[0022] The present invention provides a freshwater cooling circulation system, wherein the freshwater circulation compartment has a cold water chamber and a hot water chamber. The water inlet of the freshwater cooling pump is connected to the cold water chamber, and the water outlet of the freshwater cooling pump is connected to the equipment to be cooled on the ship. A three-way temperature control valve is used to control the water inlet temperature of the freshwater cooling pump. The first port of the three-way temperature control valve is connected to the water outlet of the equipment to be cooled, the second port of the three-way temperature control valve is connected to the water inlet of the freshwater cooling pump, and the third port of the three-way temperature control valve is connected to the hot water chamber. The water inlet of the circulating cooling pump is connected to the hot water chamber, and the water outlet of the circulating cooling pump is connected to the ballast tank and the empty compartment. The ballast tank and the empty compartment are connected to the cold water chamber. When the freshwater cooling circulation system is in operation, the lower-temperature freshwater in the cold water chamber enters the equipment to be cooled through the freshwater cooling pump for heat exchange, and then flows back to the hot water chamber. The warmer fresh water in the hot water chamber is then pumped into the ballast and void spaces via a circulating cooling pump. Heat exchange between the ballast and void spaces and the surrounding seawater cools the fresh water, which then enters the cold water chamber. This circulation method allows the heated fresh water to maintain the temperature of the ballast and void spaces, effectively utilizing the fresh water's heat. This eliminates the need for a central cooler to protect against seawater corrosion, improving economic efficiency. A three-way temperature control valve controls the temperature of the water entering the fresh water cooling pump, ensuring a constant temperature for the fresh water exchanging heat with the equipment being cooled, thus preventing damage to the equipment being cooled.

[0023] The present invention provides a ship comprising a hull and the above-mentioned fresh water cooling circulation system, which can utilize the thermal energy of fresh water and improve the economic efficiency of ship construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. 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 the contents of the embodiments of the present invention and these drawings without any creative work.

[0025] Figure 1 It is a principle diagram of a fresh water cooling circulation system of the present invention.

[0026] In the picture:

[0027] 1. Fresh water circulation tank; 11. Cold water chamber; 12. Hot water chamber; 13. Isolation void tank; 14. Overflow pipe; 15. First vent pipe; 2. Fresh water cooling pump; 21. First stop valve; 22. First check stop valve; 23. First vacuum pressure gauge; 24. First pressure gauge; 3. Equipment to be cooled; 31. Generator; 32. Atmospheric condenser; 33. Air conditioning equipment; 34. Diesel engine; 4. Circulating cooling pump; 41. Second stop valve; 42. Second check stop valve; 43. Second vacuum pressure gauge; 44. Second pressure gauge; 5. Void tank; 51. Second vent pipe; 6. Ballast tank; 61. Third vent pipe; 7. Three-way temperature control valve. DETAILED DESCRIPTION

[0028] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0029] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0030] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0031] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0032] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0033] In order to utilize the thermal energy of fresh water and improve the economy of shipbuilding, Figure 1 As shown, the present invention provides a fresh water cooling circulation system. The fresh water cooling circulation system includes a fresh water circulation chamber 1, a fresh water cooling pump 2, a three-way temperature control valve 7 and a circulating cooling pump 4.

[0034] The freshwater circulation tank 1 has a cold water chamber 11 and a hot water chamber 12. The water inlet of the freshwater cooling pump 2 is connected to the cold water chamber 11, and the water outlet of the freshwater cooling pump 2 is connected to the vessel's equipment to be cooled 3. The three-way temperature control valve 7 is used to control the inlet temperature of the freshwater cooling pump 2. The first port of the three-way temperature control valve 7 is connected to the water outlet of the equipment to be cooled 3, the second port of the three-way temperature control valve 7 is connected to the water inlet of the freshwater cooling pump 2, and the third port of the three-way temperature control valve 7 is connected to the hot water chamber 12. The water inlet of the circulating cooling pump 4 is connected to the hot water chamber 12, and the water outlet of the circulating cooling pump 4 is connected to the ballast tank 6 and the empty tank 5. The ballast tank 6 and the empty tank 5 are connected to the cold water chamber 11.

[0035] When the fresh water cooling circulation system is working, the fresh water with a lower temperature in the cold water chamber 11 enters the equipment to be cooled 3 through the fresh water cooling pump 2 for heat exchange, and then flows back to the hot water chamber 12. The fresh water with a higher temperature in the hot water chamber 12 enters the ballast tank 6 and the empty tank 5 through the circulating cooling pump 4. Since the ballast tank 6 and the empty tank 5 exchange heat with the external seawater, the temperature of the fresh water can be reduced, and the cooled fresh water enters the cold water chamber 11. Through the above circulation method, the heated fresh water can maintain the temperature of the ballast tank 6 and the empty tank 5, realize the heat utilization of the fresh water, and at the same time, there is no need to arrange a central cooler to prevent seawater corrosion, which can improve economic efficiency. By arranging a three-way temperature control valve 7, some of the heated fresh water enters the water inlet of the fresh water cooling pump 2 through the three-way temperature control valve 7 and mixes with the fresh water with a lower temperature, so that the water temperature entering the fresh water cooling pump 2 can be controlled, ensuring that the temperature of the fresh water for heat exchange with the equipment to be cooled 3 is constant, thereby avoiding damage to the equipment to be cooled 3.

[0036] In some embodiments, a temperature probe is provided at the water inlet of the fresh water cooling pump 2, and the temperature probe is electrically connected to the three-way temperature control valve 7. By providing the temperature probe, the inlet water temperature at the water inlet of the fresh water cooling pump 2 can be collected in real time, thereby controlling the opening of the connection between the first port and the second port, and the opening of the connection between the first port and the third port of the three-way temperature control valve 7, so that some of the heated fresh water enters the hot water chamber 12, and some of the heated fresh water enters the water inlet of the fresh water cooling pump 2 to mix with the cooler fresh water, thereby ensuring that the temperature of the fresh water entering the equipment to be cooled 3 through the fresh water cooling pump 2 is stable.

[0037] In some embodiments, the freshwater cooling circulation system includes at least two freshwater cooling pumps 2, which are arranged in parallel. This arrangement provides redundancy for the at least two freshwater cooling pumps 2. Even if one freshwater cooling pump 2 fails, the other freshwater cooling pump 2 can still operate, thereby ensuring cooling of the cooling equipment 3. Furthermore, when rapid heat dissipation is required for the heat dissipation equipment, all freshwater cooling pumps 2 can be activated simultaneously to ensure a high freshwater circulation rate.

[0038] In some embodiments, the freshwater cooling circulation system includes at least two circulating cooling pumps 4, which are arranged in parallel. This arrangement provides redundancy for the at least two circulating cooling pumps 4. Even if one circulating cooling pump 4 fails, the other circulating cooling pump 4 can still operate, thereby ensuring that the higher-temperature freshwater is cooled. Furthermore, when the higher-temperature freshwater needs to be cooled quickly, all circulating cooling pumps 4 can be activated, thereby improving the efficiency of freshwater cooling.

[0039] In some embodiments, an isolation chamber 13 is vertically disposed in the fresh water circulation chamber 1, and the isolation chamber 13 separates the fresh water circulation chamber 1 into a cold water chamber 11 and a hot water chamber 12. By providing the isolation chamber 13 to separate the cold water chamber 11 from the hot water chamber 12, the heat exchange rate between the fresh water in the cold water chamber 11 (where the temperature is lower) and the fresh water in the hot water chamber 12 (where the temperature is higher).

[0040] In some embodiments, an overflow pipe 14 is provided at the upper end of the isolation chamber 13, and the overflow pipe 14 connects the cold water chamber 11 and the hot water chamber 12. By providing the overflow pipe 14, when there is more water in the cold water chamber 11 or the hot water chamber 12, it can overflow into the other one.

[0041] In some embodiments, a first stop valve 21 is provided at the water inlet of the fresh water cooling pump 2, and a first check stop valve 22 is provided at the water outlet of the fresh water cooling pump 2. The above arrangement facilitates control of the water inlet and outlet of the fresh water cooling pump 2.

[0042] In some embodiments, a second stop valve 41 is provided at the water inlet of the circulating cooling pump 4, and a second check stop valve 42 is provided at the water outlet of the circulating cooling pump 4. The above arrangement facilitates control of the water inlet and outlet of the circulating cooling pump 4.

[0043] In some embodiments, the equipment to be cooled 3 includes a generator 31, an atmospheric condenser 32, an air conditioner 33, and a diesel engine 34. A shutoff valve is provided at the water inlet of the equipment to be cooled 3, and a shutoff check valve is provided at the water outlet of the equipment to be cooled 3. This arrangement allows for control of cooling water supply based on the actual needs of the generator 31, atmospheric condenser 32, air conditioner 33, and diesel engine 34.

[0044] In some embodiments, a first vacuum pressure gauge 23 is provided at the water inlet of the fresh water cooling pump 2, and a first pressure gauge 24 is provided at the water outlet of the fresh water cooling pump 2. Through the above settings, the working status of the fresh water cooling pump 2 can be detected.

[0045] In some embodiments, a second vacuum pressure gauge 43 is provided at the water inlet of the circulating cooling pump 4, and a second pressure gauge 44 is provided at the water outlet of the circulating cooling pump 4. Through the above settings, the working status of the circulating cooling pump 4 can be detected.

[0046] In some embodiments, a first vent pipe 15 is provided at the upper end of the fresh water circulation chamber 1. The first vent pipe 15 is in communication with both the cold water chamber 11 and the hot water chamber 12. The provision of the first vent pipe 15 allows for timely discharge of gas from the fresh water circulation chamber 1, thereby ensuring that the pressure in the fresh water circulation chamber 1 does not exceed a set pressure value, thereby protecting the fresh water circulation chamber 1.

[0047] In some embodiments, a second vent pipe 51 is provided at the upper end of the empty compartment 5, communicating with the empty compartment 5. This second vent pipe 51 allows for the timely discharge of gas from the empty compartment 5. A third vent pipe 61 is provided at the upper end of the ballast tank 6, communicating with the ballast tank 6. This third vent pipe 61 allows for the timely discharge of gas from the ballast tank 6.

[0048] This embodiment also provides a ship, which includes a hull and the above fresh water cooling circulation system, and the fresh water cooling circulation system is arranged in the hull.

[0049] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Fresh water cooling circulation system, characterized in that: include: A fresh water circulation chamber (1), the fresh water circulation chamber (1) comprising a cold water chamber (11) and a hot water chamber (12); A fresh water cooling pump (2), wherein a water inlet of the fresh water cooling pump (2) is in communication with the cold water chamber (11), and a water outlet of the fresh water cooling pump (2) is in communication with the equipment to be cooled (3) of the ship; a three-way temperature control valve (7), the three-way temperature control valve (7) being used to control the water inlet temperature of the fresh water cooling pump (2), a first port of the three-way temperature control valve (7) being connected to the water outlet of the device to be cooled (3), a second port of the three-way temperature control valve (7) being connected to the water inlet of the fresh water cooling pump (2), and a third port of the three-way temperature control valve (7) being connected to the hot water chamber (12); A circulating cooling pump (4), wherein the water inlet of the circulating cooling pump (4) is connected to the hot water chamber (12), the water outlet of the circulating cooling pump (4) is connected to the ballast tank (6) and the empty tank (5), and the ballast tank (6) and the empty tank (5) are connected to the cold water chamber (11).

2. The fresh water cooling circulation system according to claim 1, characterized in that: A temperature sensing probe is provided at the water inlet of the fresh water cooling pump (2), and the temperature sensing probe is electrically connected to the three-way temperature control valve (7).

3. The fresh water cooling circulation system according to claim 1, characterized in that: It comprises at least two fresh water cooling pumps (2), and the at least two fresh water cooling pumps (2) are arranged in parallel.

4. The fresh water cooling circulation system according to claim 1, characterized in that: It comprises at least two circulating cooling pumps (4), and the at least two circulating cooling pumps (4) are arranged in parallel.

5. The fresh water cooling circulation system according to claim 1, characterized in that: An isolation chamber (13) is provided in the fresh water circulation chamber (1) along a vertical direction, and the isolation chamber (13) separates the fresh water circulation chamber (1) into the cold water chamber (11) and the hot water chamber (12).

6. The fresh water cooling circulation system according to claim 5, characterized in that: An overflow pipe (14) is provided at the upper end of the isolation chamber (13), and the overflow pipe (14) is connected with the cold water chamber (11) and the hot water chamber (12).

7. The fresh water cooling circulation system according to claim 1, characterized in that: A first stop valve (21) is provided at the water inlet of the fresh water cooling pump (2), and a first check stop valve (22) is provided at the water outlet of the fresh water cooling pump (2).

8. The fresh water cooling circulation system according to claim 1, characterized in that: A second stop valve (41) is provided at the water inlet of the circulating cooling pump (4), and a second check stop valve (42) is provided at the water outlet of the circulating cooling pump (4).

9. The fresh water cooling circulation system according to claim 1, characterized in that: A first air vent (15) is provided at the upper end of the fresh water circulation chamber (1), and the first air vent (15) is communicated with both the cold water chamber (11) and the hot water chamber (12).

10. A vessel, characterized in that The invention comprises a hull and a fresh water cooling circulation system according to any one of claims 1 to 9, wherein the fresh water cooling circulation system is arranged in the hull.

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