Cooling water system operation optimization method and device and ship

Abstract

The invention belongs to the technical field of ships, and discloses a cooling water system operation optimization method and device and a ship, and the method comprises the steps: obtaining and judging whether the inlet pressure value of cooled equipment at the highest position of the ship is greater than a preset pressure value or not; if yes, executing the next step; whether the actual heat exchange area of the plate cooler is smaller than the preset heat exchange area or not is obtained and judged; if yes, executing the next step; acquiring and judging whether the cooling fresh water inlet temperature of the plate cooler is smaller than a first preset value; if yes, executing the next step; obtaining and judging whether the cooling seawater outlet temperature of the plate cooler is smaller than a second preset value; if yes, it is determined that the starting number of the cooling sea water pump, the starting number of the cooling fresh water pump and the starting number of the plate cooler are all one; and if the judgment result of any step is no, determining that at least two cooling sea water pumps, at least two cooling fresh water pumps and at least two plate coolers are started. The reasonable operation scheme of the equipment can be determined according to actual requirements.

Description

Technical Field

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

[0002] The ship's cooling water system plays a vital role in the normal operation of the ship. The cooling water system is usually equipped with multiple cooling seawater pumps, cooling fresh water pumps and plate coolers. For example, three cooling seawater pumps, three cooling fresh water pumps and two plate coolers are configured, among which there is usually one cooling seawater pump, one cooling fresh water pump and one plate cooler as backup to ensure that the cooling needs of the equipment can be met under different sailing conditions.

[0003] Existing ships are generally only equipped with temperature control valves, which control the cooling water temperature by adjusting the valve opening, but cannot provide effective suggestions on the specific number of cooling seawater pumps, cooling fresh water pumps and plate coolers to be operated. As a result, during specific operations, the crew can only rely on their own experience to judge the number of equipment that should be enabled. If multiple cooling seawater pumps and multiple cooling fresh water pumps are enabled when the speed is low and the main engine load is light, it will lead to unnecessary fuel consumption and energy waste; and if only one cooling seawater pump and one cooling fresh water pump are enabled when a strong cooling capacity is required, the cooling water temperature may be too high, thereby affecting the performance and life of the main engine and auxiliary engine. In addition, when entering and leaving the Yangtze River Estuary, the cooling seawater pump is prone to accidentally sucking in small fish, causing the cooling system to be blocked. If multiple plate coolers are enabled at this time, multiple plate coolers may be blocked, causing the cooling water system to fail, affecting navigation safety. In the absence of experience, crew members can often only determine the optimal operating plan through trial and error. For example, they first start a cooling seawater pump and a cooling freshwater pump to see if there are any problems, and then start two cooling seawater pumps and two cooling freshwater pumps to see if there are any problems. This subjective judgment plus trial and error method can easily cause the cooling water system to operate in undesirable conditions, increasing navigation risks and equipment losses.

[0004] Therefore, it is urgent to propose a cooling water system operation optimization method, device and ship to solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a cooling water system operation optimization method, device and ship, which can determine a reasonable operation plan of the equipment according to actual needs.

[0006] As conceived above, the technical solution adopted by the present invention is:

[0007] In a first aspect, the present invention provides a cooling water system operation optimization method, comprising:

[0008] S1. Obtain the inlet pressure value of the cooled equipment at the highest position of the ship, and determine whether the inlet pressure value is greater than a preset pressure value; if so, proceed to the next step;

[0009] S2, obtaining the actual heat exchange area of ​​the plate cooler, and determining whether the actual heat exchange area is smaller than the preset heat exchange area; if so, executing the next step;

[0010] S3, obtaining the cooling fresh water inlet temperature of the plate cooler, and determining whether the cooling fresh water inlet temperature is less than a first preset value; if so, executing the next step;

[0011] S4, obtaining the cooling seawater outlet temperature of the plate cooler, and determining whether the cooling seawater outlet temperature is less than a second preset value; if so, determining that the number of cooling seawater pumps, cooling fresh water pumps, and the plate cooler to be turned on is set to one;

[0012] If the judgment result of any one of step S1, step S2, step S3 and step S4 is no, it is determined that the number of the cooling seawater pump, the cooling fresh water pump and the plate cooler to be turned on is at least two each.

[0013] In some embodiments, in step S3, obtaining the cooling fresh water inlet temperature of the plate cooler includes:

[0014] Determine whether the cooling fresh water inlet temperature has a real-time value of the inlet temperature; if so, obtain the real-time value of the inlet temperature as the cooling fresh water inlet temperature; if not, calculate the cooling fresh water inlet temperature according to the performance curve of the cooling fresh water pump.

[0015] In some embodiments, calculating the cooling fresh water inlet temperature according to the performance curve of the cooling fresh water pump specifically includes:

[0016] Determining whether the cooling fresh water pump is a variable frequency pump;

[0017] If yes, then obtain the maximum flow rate of the cooling fresh water pump, and calculate the cooling fresh water inlet temperature according to the maximum flow rate of the cooling fresh water pump and the performance curve of the cooling fresh water pump;

[0018] If not, the pressure of the low-temperature expansion water tank connected to the cooling fresh water pump is obtained, and the cooling fresh water inlet temperature is calculated according to the pressure of the low-temperature expansion water tank and the performance curve of the cooling fresh water pump.

[0019] In some embodiments, in step S4, obtaining the cooling seawater outlet temperature of the plate cooler includes:

[0020] Determine whether the cooling seawater outlet temperature has a real-time value of the outlet temperature; if so, obtain the real-time value of the outlet temperature as the cooling seawater outlet temperature; if not, calculate the cooling seawater outlet temperature according to the performance curve of the cooling seawater pump.

[0021] In some embodiments, calculating the cooling seawater outlet temperature according to the performance curve of the cooling seawater pump specifically includes:

[0022] Determining whether the cooling seawater pump is a variable frequency pump;

[0023] If yes, the maximum flow rate of the cooling seawater pump is obtained, and the cooling seawater outlet temperature is calculated according to the maximum flow rate of the cooling seawater pump and the performance curve of the cooling seawater pump;

[0024] If not, the draft of the ship is obtained, and the cooling seawater outlet temperature is calculated according to the draft of the ship and the performance curve of the cooling seawater pump.

[0025] In some embodiments, the cooling water system operation optimization method further includes the following steps:

[0026] S5. Determine multiple schemes for the number of openings of the cooling seawater pump, the cooling fresh water pump and the plate cooler in combination with the main engine load data, auxiliary engine load data and the number of auxiliary engines in operation, and form a graph of the multiple schemes.

[0027] In a second aspect, the present invention provides a cooling water system operation optimization device, comprising:

[0028] An acquisition module is used to obtain the inlet pressure value of the cooled equipment at the highest position of the ship, and to obtain the actual heat exchange area, cooling fresh water inlet temperature and cooling sea water outlet temperature of the plate cooler;

[0029] A signal acquisition module, used for acquiring the data acquired by the acquisition module;

[0030] A data processing platform analyzes and processes the data collected by the signal acquisition module, and calculates the number of openings of the cooling seawater pump, the cooling fresh water pump and the plate cooler;

[0031] A display module is used to display the solution of the opening quantity obtained by the data processing platform.

[0032] In some embodiments, the cooling water system operation optimization device further includes a monitoring alarm system;

[0033] The monitoring and alarm system is arranged between the acquisition module and the signal acquisition module. The data acquired by the acquisition module is transmitted to the monitoring and alarm system, and then transmitted to the signal acquisition module by the monitoring and alarm system.

[0034] In some embodiments, the monitoring and alarm system is also used to collect the main engine load data, auxiliary engine load data and auxiliary engine operating quantity of the ship.

[0035] In a third aspect, the present invention provides a ship, comprising a ship body and the cooling water system operation optimization device described in the second aspect, wherein the cooling water system operation optimization device is arranged on the ship body.

[0036] Beneficial effects of the present invention:

[0037] The cooling water system operation optimization method provided by the present invention can determine the reasonable opening number of the cooling seawater pump, the cooling fresh water pump and the plate cooler by obtaining and analyzing the inlet pressure value of the cooled equipment, the actual heat exchange area and temperature parameters of the plate cooler. In this way, whether under low load or high cooling demand conditions, the system can determine the reasonable operation plan of the equipment according to actual needs, avoiding the uncertainty caused by trial and error and guessing based on the crew's experience, which is conducive to reducing energy consumption and equipment loss, ensuring the stable and efficient operation of the cooling water system, and further ensuring the safety and economy of the ship under different navigation conditions.

[0038] The cooling water system operation optimization device provided by the present invention realizes comprehensive monitoring and intelligent management of the cooling water system by integrating an acquisition module, a signal acquisition module, a data processing platform and a display module. The acquisition module is responsible for real-time acquisition of the inlet pressure value of the cooled equipment at the highest position of the ship, the actual heat exchange area of ​​the plate cooler, the cooling fresh water inlet temperature and the cooling seawater outlet temperature to ensure the accuracy and timeliness of the data. The signal acquisition module transmits these data to ensure rapid feedback of information. The data processing platform conducts an in-depth analysis of the collected data to determine the current cooling demand and formulates a reasonable equipment startup plan, thereby effectively reducing energy consumption and equipment loss. Finally, the display module presents the optimized plan to the user in an intuitive manner, which is convenient for quick reference and decision-making.

[0039] The ship provided by the present invention is equipped with a cooling water system operation optimization device, which is beneficial to improving the safety and economy of the ship under various navigation conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] 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 the description of 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 paying any creative work.

[0041] Figure 1 is a flow chart of a cooling water system operation optimization method provided by an embodiment of the present invention;

[0042] Figure 2 is a flow chart of a method for obtaining the cooling fresh water inlet temperature of a plate cooler provided by an embodiment of the present invention;

[0043] Figure 3 is a flow chart of a method for obtaining the cooling seawater outlet temperature of a plate cooler provided by an embodiment of the present invention;

[0044] Figure 4 It is a structural schematic diagram of a cooling water system operation optimization device provided in an embodiment of the present invention.

[0045] In the figure:

[0046] 100. Acquisition module; 200. Signal acquisition module; 300. Data processing platform; 400. Display module; 500. Monitoring and alarm system. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0050] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0051] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0053] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0054] In the ship's cooling water system, the cooling seawater pump is used to pump external seawater into the plate cooler, and the seawater acts as a cooling medium. The cooling freshwater pump is responsible for delivering cooling freshwater to the equipment on the ship that needs to be cooled (such as the ship's main engine, auxiliary engine, etc.). The cooling freshwater flows through the cooling pipes of each device to take away the heat, and then enters the plate cooler for heat exchange. The plate cooler is used as a heat exchange device to exchange heat between cooling freshwater and cooling seawater to cool the cooling freshwater.

[0055] like Figure 1As shown, the cooling water system operation optimization method provided in this embodiment includes:

[0056] S1. Obtain the inlet pressure value of the cooled equipment at the highest position of the ship, and determine whether the inlet pressure value is greater than a preset pressure value; if so, proceed to the next step;

[0057] Specifically, the cooling fresh water pump usually applies pressure from bottom to top, so the pressure of the cooled equipment at the highest position is the smallest. If the inlet pressure value of the cooled equipment at the highest position is greater than the preset pressure value, that is, the cooled equipment at the highest position can meet the usage requirements, then it can be considered that the pressure requirements of the entire ship's equipment can be met.

[0058] S2, obtaining the actual heat exchange area of ​​the plate cooler, and determining whether the actual heat exchange area is smaller than the preset heat exchange area; if so, proceeding to the next step;

[0059] Specifically, the actual heat exchange area of ​​the plate cooler represents the actual heat exchange demand. If the actual heat exchange demand is less than the design value of a single plate cooler, that is, the actual heat exchange area is less than the preset heat exchange area, it means that the designed heat exchange capacity of the single plate cooler can meet the actual demand, and only one plate cooler can be used.

[0060] S3, obtaining the cooling water inlet temperature of the plate cooler, and determining whether the cooling water inlet temperature is less than a first preset value; if so, executing the next step;

[0061] Specifically, if the cooling fresh water inlet temperature is lower than the first preset value, it means that the fresh water temperature is already at a relatively low level and does not require much heat exchange capacity for further cooling. In this case, using a plate cooler is sufficient to maintain the cooling fresh water within the required temperature range.

[0062] S4, obtaining the cooling seawater outlet temperature of the plate cooler, and determining whether the cooling seawater outlet temperature is less than a second preset value; if so, determining that the number of cooling seawater pumps, cooling fresh water pumps, and plate coolers to be turned on is all set to one;

[0063] Specifically, if the cooling seawater outlet temperature is less than the second preset value, it means that the cooling seawater has a lower temperature when leaving the plate cooler, that is, during heat exchange, the cooling seawater absorbs less heat from the cooling fresh water, indicating that the heat exchange capacity of a single device can meet the current heat exchange demand.

[0064] Therefore, if the judgment results in step S1, step S2, step S3 and step S4 are all yes, it means that the current cooling demand is low, and only one cooling seawater pump, one cooling fresh water pump and one plate cooler need to be started to maintain the normal operation of the cooling water system. Further starting multiple devices will lead to unnecessary energy consumption.

[0065] If the judgment result of any one of step S1, step S2, step S3 and step S4 is no, it is determined that the number of cooling seawater pumps, cooling fresh water pumps and plate coolers to be turned on is at least two each.

[0066] The cooling water system operation optimization method provided in this embodiment can determine the reasonable opening number of the cooling seawater pump, the cooling fresh water pump and the plate cooler by obtaining and analyzing the inlet pressure value of the cooled equipment, the actual heat exchange area and temperature parameters of the plate cooler. In this way, whether under low load or high cooling demand conditions, the system can determine the reasonable operation plan of the equipment according to actual needs, avoiding the uncertainty caused by trial and error and guessing based on the crew's experience, which is conducive to reducing energy consumption and equipment loss, ensuring the stable and efficient operation of the cooling water system, and further ensuring the safety and economy of the ship under different navigation conditions.

[0067] Furthermore, the cooling water system operation optimization method further comprises the following steps:

[0068] S5. Based on the ship's main engine load data, auxiliary engine load data and the number of auxiliary engines in operation, multiple schemes for opening the cooling seawater pump, cooling fresh water pump and plate cooler are determined, and the multiple schemes are formed into a map.

[0069] By adding the load data of the main engine and auxiliary engine and the information on the number of auxiliary engine operations, multiple schemes for the opening number of cooling seawater pumps, cooling fresh water pumps and plate coolers can be generated according to the different operating conditions of the ship, which is beneficial to improving the adaptability and accuracy of the cooling water system operation; and, multiple schemes are presented in the form of graphs, which is convenient for users to quickly find cooling water system operation plans under different working conditions and plan in advance.

[0070] like Figure 2 As shown, in some embodiments, in step S3, obtaining the cooling fresh water inlet temperature of the plate cooler includes:

[0071] Determine whether the cooling water inlet temperature has a real-time value of the inlet temperature; if so, obtain the real-time value of the inlet temperature as the cooling water inlet temperature; if not, calculate the cooling water inlet temperature according to the performance curve of the cooling water pump.

[0072] Specifically, when there is a real-time value of the inlet temperature, the real-time value of the inlet temperature can be measured by a plate cooling fresh water inlet temperature sensor.

[0073] When there is no real-time value of the inlet temperature, the cooling water inlet temperature is calculated according to the performance curve of the cooling water pump, including:

[0074] Determine whether the cooling fresh water pump is a variable frequency pump;

[0075] If yes, the maximum flow rate of the cooling water pump is obtained, and the cooling water inlet temperature is calculated according to the maximum flow rate of the cooling water pump and the performance curve of the cooling water pump;

[0076] If not, the pressure of the low-temperature expansion water tank connected to the cooling fresh water pump is obtained, and the cooling fresh water inlet temperature is calculated according to the pressure of the low-temperature expansion water tank and the performance curve of the cooling fresh water pump.

[0077] At this time, we consider whether the cooling water pump adopts the variable frequency mode. When the cooling water pump is a variable frequency pump, its maximum flow rate is combined with the performance curve for calculation, which is convenient for determining the upper limit of the cooling water inlet temperature range; in the case of a traditional pump, the cooling water inlet temperature is calculated by the pressure and performance curve of the low-temperature expansion water tank, making the most of the existing equipment information. Among them, the low-temperature expansion water tank is the source of cooling water supply.

[0078] Specifically, how to calculate the cooling water inlet temperature based on the maximum flow of the cooling water pump or the pressure of the low-temperature expansion water tank combined with the performance curve of the cooling water pump is a mature existing technology in this field, and the specific calculation principle and process will not be introduced in detail here.

[0079] like Figure 3 As shown, in some embodiments, in step S4, obtaining the cooling seawater outlet temperature of the plate cooler includes:

[0080] Determine whether the cooling seawater outlet temperature has a real-time value of the outlet temperature; if so, obtain the real-time value of the outlet temperature as the cooling seawater outlet temperature; if not, calculate the cooling seawater outlet temperature according to the performance curve of the cooling seawater pump.

[0081] Specifically, when there is a real-time value of the outlet temperature, the real-time value of the outlet temperature can be measured by a plate-cooled seawater outlet temperature sensor.

[0082] When there is no real-time value of the outlet temperature, the cooling seawater outlet temperature is calculated according to the performance curve of the cooling seawater pump, specifically including:

[0083] Determine whether the cooling seawater pump is a variable frequency pump;

[0084] If yes, the maximum flow rate of the cooling seawater pump is obtained, and the cooling seawater outlet temperature is calculated according to the maximum flow rate of the cooling seawater pump and the performance curve of the cooling seawater pump;

[0085] If not, the ship's draft is obtained, and the cooling seawater outlet temperature is calculated by the ship's draft and the performance curve of the cooling seawater pump. The ship's draft can be measured by a ship's draft sensor.

[0086] When the cooling seawater pump is a variable frequency pump, the cooling seawater outlet temperature is calculated using its maximum flow rate combined with the performance curve, which facilitates the determination of the upper limit of the temperature range; in the case of a traditional pump, calculation based on the ship's draft provides a reliable calculation solution to ensure the effectiveness of the temperature calculation.

[0087] Specifically, how to calculate the cooling seawater outlet temperature according to the maximum flow of the cooling seawater pump or the draft of the ship combined with the performance curve of the cooling seawater pump is a mature existing technology in this field, and the specific calculation principle and process will not be introduced in detail here.

[0088] like Figure 4 As shown, based on the above cooling water system operation optimization method, this embodiment also provides a cooling water system operation optimization device. The cooling water system operation optimization device includes an acquisition module 100, a signal acquisition module 200, a data processing platform 300 and a display module 400.

[0089] The acquisition module 100 is used to acquire the inlet pressure value of the cooled equipment at the highest position of the ship, and to acquire the actual heat exchange area, the cooling fresh water inlet temperature and the cooling sea water outlet temperature of the plate cooler.

[0090] The signal acquisition module 200 is used to acquire the data acquired by the acquisition module 100 .

[0091] The data processing platform 300 analyzes and processes the data collected by the signal acquisition module 200, and calculates the number of openings of the cooling seawater pump, the cooling fresh water pump and the plate cooler. Specifically, the analysis and processing of the data includes abnormal value processing, average value calculation, etc.

[0092] The display module 400 is used to display the solution of the number of openings obtained by the data processing platform 300. For example, the display module 400 can be a display screen, a touch screen, etc.

[0093] The cooling water system operation optimization device provided in this embodiment realizes comprehensive monitoring and intelligent management of the cooling water system by integrating the acquisition module 100, the signal acquisition module 200, the data processing platform 300 and the display module 400. The acquisition module 100 is responsible for real-time acquisition of the inlet pressure value of the cooled equipment at the highest position of the ship, the actual heat exchange area of ​​the plate cooler, the cooling fresh water inlet temperature and the cooling seawater outlet temperature to ensure the accuracy and timeliness of the data. The signal acquisition module 200 transmits these data to ensure rapid feedback of information. The data processing platform 300 conducts in-depth analysis of the collected data to determine the current cooling demand and formulate a reasonable equipment startup plan, thereby effectively reducing energy consumption and equipment loss. Finally, the display module 400 presents the optimized plan to the user in an intuitive manner, which is convenient for quick reference and decision-making.

[0094] Among them, the acquisition module 100 includes but is not limited to a ship draft sensor, a seawater temperature sensor, a cooling seawater pump inlet and outlet pressure sensor, a cooling fresh water pump inlet and outlet pressure sensor, a plate-cooled seawater inlet temperature sensor, a plate-cooled seawater outlet temperature sensor, a plate-cooled fresh water inlet temperature sensor, and a temperature sensor after a three-way temperature control valve.

[0095] Exemplarily, the data processing platform 300 can be a workstation, a server or an all-in-one machine, which is not specifically limited here, as long as a solution for the specific number of equipment operations can be obtained according to the aforementioned cooling water system operation optimization method. Of course, in addition to the aforementioned cooling water system operation optimization method, in other embodiments, the data processing platform 300 can also use machine learning neural network algorithms to regress the operating status of equipment in the cooling water system under different working conditions.

[0096] In some embodiments, the cooling water system operation optimization device further includes a monitoring alarm system 500 .

[0097] The monitoring and alarming system 500 is arranged between the acquisition module 100 and the signal acquisition module 200 . The data acquired by the acquisition module 100 is transmitted to the monitoring and alarming system 500 , and then transmitted to the signal acquisition module 200 by the monitoring and alarming system 500 .

[0098] Through such a setting, the monitoring alarm system 500 plays an important intermediary role between the acquisition module 100 and the signal acquisition module 200, which can effectively ensure the integrity and accuracy of the data. The monitoring alarm system 500 optimizes the data transmission process and reduces the loss or error that may occur during long-distance transmission.

[0099] Furthermore, the monitoring alarm system 500 is also used to collect the main engine load data, auxiliary engine load data and auxiliary engine operation quantity of the ship. Such a setting is helpful to comprehensively monitor the operation status of the ship.

[0100] This embodiment also provides a ship, including a ship body and the aforementioned cooling water system operation optimization device, and the cooling water system operation optimization device is arranged on the ship body.

[0101] The cooling water system operation optimization device realizes comprehensive monitoring and intelligent management of the cooling water system by integrating the acquisition module 100, the signal acquisition module 200, the data processing platform 300 and the display module 400. The acquisition module 100 is responsible for real-time acquisition of the inlet pressure value of the cooled equipment at the highest position of the ship, the actual heat exchange area of ​​the plate cooler, the cooling fresh water inlet temperature and the cooling seawater outlet temperature to ensure the accuracy and timeliness of the data. The signal acquisition module 200 transmits these data to ensure rapid feedback of information. The data processing platform 300 conducts in-depth analysis of the collected data to determine the current cooling demand and formulate a reasonable equipment startup plan, thereby effectively reducing energy consumption and equipment loss. Finally, the display module 400 presents the optimized plan to the user in an intuitive manner, which is convenient for quick reference and decision-making.

[0102] The ship provided in this embodiment is equipped with the cooling water system operation optimization device, which is beneficial to improving the safety and economy of the ship under various navigation conditions.

[0103] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A cooling water system operation optimization method, characterized in that: include: S1. Obtain the inlet pressure value of the cooled equipment at the highest position of the ship, and determine whether the inlet pressure value is greater than a preset pressure value; if so, proceed to the next step; S2, obtaining the actual heat exchange area of ​​the plate cooler, and determining whether the actual heat exchange area is smaller than the preset heat exchange area; if so, executing the next step; S3, obtaining the cooling fresh water inlet temperature of the plate cooler, and determining whether the cooling fresh water inlet temperature is less than a first preset value; if so, executing the next step; S4, obtaining the cooling seawater outlet temperature of the plate cooler, and determining whether the cooling seawater outlet temperature is less than a second preset value; if so, determining that the number of cooling seawater pumps, cooling fresh water pumps, and the plate cooler to be turned on is set to one; If the judgment result of any one of step S1, step S2, step S3 and step S4 is no, it is determined that the number of the cooling seawater pump, the cooling fresh water pump and the plate cooler to be turned on is at least two each.

2. The cooling water system operation optimization method according to claim 1, characterized in that: In step S3, obtaining the cooling fresh water inlet temperature of the plate cooler includes: Determine whether the cooling fresh water inlet temperature has a real-time value of the inlet temperature; if so, obtain the real-time value of the inlet temperature as the cooling fresh water inlet temperature; if not, calculate the cooling fresh water inlet temperature according to the performance curve of the cooling fresh water pump.

3. The cooling water system operation optimization method according to claim 2, characterized in that: Calculating the cooling fresh water inlet temperature according to the performance curve of the cooling fresh water pump specifically includes: Determining whether the cooling fresh water pump is a variable frequency pump; If yes, then obtain the maximum flow rate of the cooling fresh water pump, and calculate the cooling fresh water inlet temperature according to the maximum flow rate of the cooling fresh water pump and the performance curve of the cooling fresh water pump; If not, the pressure of the low-temperature expansion water tank connected to the cooling fresh water pump is obtained, and the cooling fresh water inlet temperature is calculated according to the pressure of the low-temperature expansion water tank and the performance curve of the cooling fresh water pump.

4. The cooling water system operation optimization method according to claim 1, characterized in that: In step S4, the cooling seawater outlet temperature of the plate cooler is obtained, including: Determine whether the cooling seawater outlet temperature has a real-time value of the outlet temperature; if so, obtain the real-time value of the outlet temperature as the cooling seawater outlet temperature; if not, calculate the cooling seawater outlet temperature according to the performance curve of the cooling seawater pump.

5. The cooling water system operation optimization method according to claim 4, characterized in that: Calculating the cooling seawater outlet temperature according to the performance curve of the cooling seawater pump specifically includes: Determining whether the cooling seawater pump is a variable frequency pump; If yes, the maximum flow rate of the cooling seawater pump is obtained, and the cooling seawater outlet temperature is calculated according to the maximum flow rate of the cooling seawater pump and the performance curve of the cooling seawater pump; If not, the draft of the ship is obtained, and the cooling seawater outlet temperature is calculated according to the draft of the ship and the performance curve of the cooling seawater pump.

6. The cooling water system operation optimization method according to claim 1, characterized in that: The cooling water system operation optimization method also includes the following steps: S5. Determine multiple schemes for the number of openings of the cooling seawater pump, the cooling fresh water pump and the plate cooler in combination with the main engine load data, auxiliary engine load data and the number of auxiliary engines in operation, and form a graph of the multiple schemes.

7. Cooling water system operation optimization device, characterized in that: include: An acquisition module is used to obtain the inlet pressure value of the cooled equipment at the highest position of the ship, and to obtain the actual heat exchange area, cooling fresh water inlet temperature and cooling sea water outlet temperature of the plate cooler; A signal acquisition module, used for acquiring the data acquired by the acquisition module; A data processing platform analyzes and processes the data collected by the signal acquisition module, and calculates the number of openings of the cooling seawater pump, the cooling fresh water pump and the plate cooler; A display module is used to display the solution of the opening quantity obtained by the data processing platform.

8. The cooling water system operation optimization device according to claim 7, characterized in that: The cooling water system operation optimization device also includes a monitoring alarm system; The monitoring and alarm system is arranged between the acquisition module and the signal acquisition module. The data acquired by the acquisition module is transmitted to the monitoring and alarm system, and then transmitted to the signal acquisition module by the monitoring and alarm system.

9. The cooling water system operation optimization device according to claim 8, characterized in that: The monitoring and alarm system is also used to collect the main engine load data, auxiliary engine load data and auxiliary engine operation quantity of the ship.

10. A vessel, characterized in that It comprises a ship body and a cooling water system operation optimization device according to any one of claims 7 to 9, wherein the cooling water system operation optimization device is arranged on the ship body.

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