Noise control method and device for circulating pump of ship's free cooling system

Abstract

The application provides a noise control method and device for a circulating pump of a ship self-cooling system, and comprises the following steps: obtaining a target value of circulating flow demand of the ship self-cooling system; obtaining a target rotating speed gear of the circulating pump based on the target value; and controlling the circulating pump based on the target rotating speed gear; wherein the target rotating speed gear is a rotating speed gear in a first rotating speed gear of the circulating pump, which makes the noise of a water intake port minimum; and the first rotating speed gear is a rotating speed gear in each rotating speed gear of the circulating pump, which makes the real-time circulating flow of the ship self-cooling system greater than the target value. The noise control method and device for the circulating pump of the ship self-cooling system can adjust the rotating speed gear of the circulating pump, obtain the rotating speed gear of the circulating pump which makes the noise of the water intake port minimum, and make the control of the circulating pump of the ship self-cooling system operate at a lower noise while meeting the cooling seawater flow demand of a heat source equipment of the ship.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ship technology, and in particular to a noise control method and device for a circulating pump of a ship self-flow cooling system. BACKGROUND

[0002] In order to reduce the pump power loss of the sea cooling system and improve the energy utilization efficiency, a self-flow cooling system is generally configured for a large ship.

[0003] The self-flow cooling system is provided with a water inlet, and the dynamic pressure head of the head-on flow caused by the ship during sailing is used to suck seawater, and the dynamic pressure conversion is used to provide cooling seawater for each heat source device. At the same time, a circulating pump with a certain power is configured in the cooling pipeline to supplement the automatic water supply capacity of the water inlet.

[0004] The noise of the circulating pump of the ship self-flow cooling system is an important source of sailing noise. Since the sea noise of the self-flow cooling system involves complex fluid-solid sound multi-physical field coupling, it is difficult to perform perfect low-noise design for the self-flow cooling system in the design stage. The existing circulating pump control mode only starts from the cooling demand of the ship heat source device, and it is difficult to consider the low-noise operation target.

[0005] In summary, the control of the existing ship self-flow cooling system circulating pump cannot effectively control the noise. SUMMARY

[0006] The present application provides a noise control method for a circulating pump of a ship self-flow cooling system, which solves the defect that the control of the circulating pump of the ship self-flow cooling system in the prior art cannot effectively control the noise, and realizes that the control of the circulating pump of the ship self-flow cooling system can operate at a lower noise while meeting the cooling seawater flow demand of the ship heat source device.

[0007] The present application provides a noise control method for a circulating pump of a ship self-flow cooling system, which includes:

[0008] Obtaining a target value of a circulating flow demand of the ship self-flow cooling system;

[0009] Based on the target value, obtaining a target rotating speed gear of the circulating pump;

[0010] Based on the target rotating speed gear, controlling the circulating pump;

[0011] The target rotating speed gear is a rotating speed gear in a first rotating speed gear of the circulating pump, which makes the noise of the water inlet minimum. The first rotating speed gear is a rotating speed gear in each rotating speed gear of the circulating pump, which makes the real-time circulating flow of the ship self-flow cooling system greater than the target value.

[0012] The application provides a noise control method of a circulating pump of a ship self-flow cooling system, and the method comprises the following steps:

[0013] In the case that the correspondence between the target value and the target rotating speed gear is not determined, the target rotating speed gear corresponding to the target value is determined by adjusting the rotating speed gear of the circulating pump.

[0014] The application provides a noise control method of a circulating pump of a ship self-flow cooling system, and the method comprises the following steps:

[0015] In the case that the correspondence between the target value and the target rotating speed gear is determined, the target rotating speed gear is obtained based on the correspondence between the target value and the target rotating speed gear.

[0016] The application provides a noise control method of a circulating pump of a ship self-flow cooling system, and the method comprises the following steps:

[0017] The rotating speed gears of the circulating pump are adjusted in a sequence from high to low to the first rotating speed gears, and the noise of the water inlet corresponding to each first rotating speed gear is obtained.

[0018] The first rotating speed gear corresponding to the minimum noise of the water inlet is determined as the target rotating speed gear corresponding to the target value.

[0019] The application provides a noise control method of a circulating pump of a ship self-flow cooling system, and the method comprises the following steps:

[0020] In the case that the rotating speed gear of the circulating pump is adjusted to each first rotating speed gear, the first data collected by a water sound sensor in a first time period is obtained, and the water sound sensor is arranged on the water inlet.

[0021] The average value of the first data is obtained as the noise of the water inlet corresponding to the first rotating speed gear.

[0022] The application provides a noise control method of a circulating pump of a ship self-flow cooling system, and the method comprises the following steps:

[0023] Adjust the rotating speed gear of the circulating pump in sequence from high to low, and acquire second data collected by a flow meter in a second time period under the condition that the rotating speed gear of the circulating pump is adjusted to a current rotating speed gear; the flow meter is arranged in a pipeline of the ship free cooling system;

[0024] Based on the second data, it is determined that the current rotating speed gear is the first rotating speed gear.

[0025] The application further provides a noise control device of a circulating pump of a ship free cooling system, comprising:

[0026] A first acquisition module is configured to acquire a target value of a circulating flow demand of the ship free cooling system;

[0027] A second acquisition module is configured to acquire a target rotating speed gear of the circulating pump based on the target value;

[0028] A control module is configured to control the circulating pump based on the target rotating speed gear;

[0029] The target rotating speed gear is a rotating speed gear of the first rotating speed gear of the circulating pump, which makes the noise of the water intake minimum; and the first rotating speed gear is a rotating speed gear of the circulating pump, which makes the real-time circulating flow of the ship free cooling system greater than the target value.

[0030] The application further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the program to implement the noise control method of the circulating pump of the ship free cooling system.

[0031] The application further provides a non-transitory computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the noise control method of the circulating pump of the ship free cooling system.

[0032] The application further provides a computer program product, which comprises a computer program, and the computer program is executed by a processor to implement the noise control method of the circulating pump of the ship free cooling system.

[0033] The noise control method and device of the circulating pump of the ship free cooling system provided by the application can make the rotating speed gear of the circulating pump minimum under the premise that the real-time circulating flow of the ship free cooling system meets the cooling demand of the heat source equipment of the ship, so that the circulating pump of the ship free cooling system can be controlled to operate at a lower noise under the condition that the cooling seawater flow demand of the heat source equipment of the ship is met. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort.

[0035] Figure 1 is a flowchart of the noise control method of the ship self-flow cooling system circulating pump provided by the present application;

[0036] Figure 2 is a structural schematic diagram of the noise control system of the ship self-flow cooling system circulating pump provided by the present application;

[0037] Figure 3 is a structural schematic diagram of the noise control device of the ship self-flow cooling system circulating pump provided by the present application;

[0038] Figure 4 is a structural schematic diagram of the electronic device provided by the present application. DETAILED DESCRIPTION

[0039] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.

[0040] The specific embodiments of the present application will be described below with reference to the drawings. Figures 1-4 DETAILED DESCRIPTION

[0041] Figure 1 is a flowchart of the noise control method of the ship self-flow cooling system circulating pump provided by the present application. As shown in Figure 1 , the execution subject of the noise control method of the ship self-flow cooling system circulating pump provided by the present application can be a noise control device of the ship self-flow cooling system circulating pump, and the method comprises steps 101, 102 and 103.

[0042] Step 101, obtaining a target value of the circulating flow demand of the ship self-flow cooling system.

[0043] Specifically, as shown in Figure 2 , the noise control system of the ship self-flow cooling system circulating pump provided by the present application comprises a data server 201, a water inlet 202, an operation table 203, a circulating pump 204, an underwater acoustic sensor 205, a flowmeter 206 and a controller 207.

[0044] The data server 201 can be used to receive data uploaded by the underwater acoustic sensor 205 and the flow meter 206, receive instructions input by the operator at the operation console 203, store and record the received data, and generate control instructions to send to the controller 207.

[0045] The water inlet 202 can be used to suck seawater to cool the heat source equipment of the ship. The seawater after being cooled by the heat exchange equipment can be discharged through the water outlet.

[0046] The operation console 203 can be used for the operator to input operation instructions or data. The input data can include uploading the circulating flow demand under the current speed condition to the data server 201. The input operation instruction can include the instruction for adjusting the speed gear of the circulating pump through the controller 207.

[0047] The circulating pump 204 can be used to increase the flow of seawater circulating through the water inlet to meet the cooling demand of the heat source equipment of the ship. The circulating pump can have multiple speed gears, and the higher the speed gear, the greater the circulating flow.

[0048] The underwater acoustic sensor 205 can be used to monitor the real-time noise of the water inlet of the ship's self-flow system.

[0049] The flow meter 206 can be used to monitor the real-time circulating flow of the ship's self-flow system.

[0050] The controller 207 can be used to receive instructions from the operation console or the data server and control the circulating pump to change the speed gear.

[0051] The data server 201 can be a noise control device of the circulating pump of the ship's self-flow cooling system.

[0052] The target value is the flow of water entering the ship's self-flow cooling system from the water inlet 202 so that the heat source equipment of the ship can be normally cooled. The target value can be determined according to the current speed condition of the ship sailing, and different speed conditions of the ship sailing can be the same or different.

[0053] The water inlet 202 is the entrance of seawater into the ship's self-flow cooling system. The seawater entering the ship's self-flow cooling system can be extracted by the dynamic pressure effect of the head flow caused by the ship sailing, or can be extracted by the circulating pump.

[0054] The target value can be automatically obtained by the data server 201 according to the current sailing speed condition; or can be input by the operator from the operation console 203 and uploaded to the data server 201.

[0055] Step 102, based on the target value, obtaining the target speed gear of the circulating pump.

[0056] The target speed position is a speed position of the water intake in the first speed position of the circulating pump, which minimizes the noise of the water intake.

[0057] Specifically, the real-time circulating flow of the ship self-flow cooling system can meet the cooling demand of the heat source equipment of the ship in the first speed position, so that the heat source equipment of the ship can work normally.

[0058] The target speed position is a speed position of the water intake in the first speed position of the circulating pump, which minimizes the noise of the water intake.

[0059] The target speed position can be obtained by adjusting the speed position of the circulating pump 204 under the premise of meeting the cooling demand of the heat source equipment of the ship, or the target speed position can be obtained according to the target value based on a comparison table between the target value and the target speed position under the premise of meeting the cooling demand of the heat source equipment of the ship.

[0060] Step 103, controlling the circulating pump based on the target speed position.

[0061] Specifically, after obtaining the target speed position, the data server 201 can send an instruction to the controller 207 to control the circulating pump 204 to set the speed position of the circulating pump 204 to the target speed position through the controller 207.

[0062] The embodiment of the application adjusts the speed position of the circulating pump under the premise that the real-time circulating flow of the ship self-flow cooling system meets the cooling demand of the heat source equipment of the ship, and obtains the speed position of the circulating pump that minimizes the noise of the water intake, so that the control of the circulating pump of the ship self-flow cooling system can be operated at a lower noise under the premise of meeting the cooling seawater flow demand of the heat source equipment of the ship.

[0063] Based on the content of any of the above embodiments, the target speed position of the circulating pump is obtained based on the target value, including: in the case where the corresponding relationship between the target value and the target speed position is not determined, the target speed position corresponding to the target value is determined by adjusting the speed position of the circulating pump.

[0064] Specifically, the corresponding relationship between the target value and the target speed position is the corresponding relationship between the circulating flow demand of the ship self-flow cooling system and the speed position of the water intake that minimizes the noise under the speed condition of the ship sailing. One target value can correspond to one target speed position.

[0065] In the case that the corresponding relationship between the target value and the target speed gear is not determined, the speed gear of the circulating pump 204 is adjusted in a certain order, and the noise of the corresponding water inlet of each speed gear of the circulating pump 204 and the corresponding water inlet is transmitted to the data server 201, and the circulating flow of the ship natural cooling system corresponding to the speed gear is greater than or equal to the circulating flow demand of the ship natural cooling system, that is, the first speed gear.

[0066] The first speed gear of the circulating pump 204 corresponding to the minimum noise of the water inlet corresponding to the first speed gear is determined as the target speed gear.

[0067] The controller 207 can be instructed by the data server 201 to adjust the speed gear of the circulating pump 204, or the controller 207 can be instructed by the operator operating the console 203 to adjust the speed gear of the circulating pump 204.

[0068] The embodiment of the application determines the speed gear of the circulating pump that minimizes the noise of the water inlet based on the real-time circulating flow demand of the ship natural cooling system by adjusting the speed gear of the circulating pump, so that the ship natural cooling system circulating pump can operate at a lower noise under the condition that the cooling seawater flow demand of the ship heat source equipment is met.

[0069] Based on the content of the above embodiment, the target speed gear of the circulating pump is obtained based on the target value, which comprises:

[0070] In the case that the corresponding relationship between the target value and the target speed gear is determined, the target speed gear is obtained based on the corresponding relationship between the target value and the target speed gear.

[0071] Specifically, in the case that the corresponding relationship between the target value and the target speed gear is determined, the corresponding target value is obtained under the sailing speed working condition, and the corresponding target value is the flow of the water entering the ship natural cooling system from the water inlet 202 under the current sailing speed working condition, so that the ship heat source equipment can be normally cooled.

[0072] The embodiment of the application directly determines the speed gear of the circulating pump that minimizes the noise of the water inlet based on the corresponding relationship between the target value and the target speed gear and the real-time circulating flow demand of the ship natural cooling system, which can eliminate the process of obtaining the target speed gear by measurement, simplify the work flow, and enable the ship natural cooling system circulating pump to operate at a lower noise under the condition that the cooling seawater flow demand of the ship heat source equipment is met.

[0073] Based on the content of the above embodiment, the target speed gear corresponding to the target value is determined by adjusting the speed gear of the circulating pump, which comprises:

[0074] Adjust the rotating speed gear of the circulating pump in sequence from high to low as the first rotating speed gear, and obtain the noise of the water inlet corresponding to each first rotating speed gear.

[0075] Specifically, the rotating speed gear of the circulating pump 204 is adjusted in sequence from the highest rotating speed gear to the low rotating speed gear until the real-time circulating flow of the ship self-flow cooling system just meets the real-time circulating flow demand of the ship self-flow cooling system.

[0076] The controller 207 can be sent an instruction to adjust the rotating speed gear of the circulating pump 204 by the data server 201, or the controller 207 can be sent an instruction to adjust the rotating speed gear of the circulating pump 204 by the staff operating the console 203.

[0077] The data server obtains the first rotating speed gear of each circulating pump 204 and obtains the noise of the water inlet 202 corresponding to the first rotating speed gear. The noise of the water inlet 202 can be obtained by the underwater acoustic sensor 205. Different acquisition methods can be adopted according to different navigation requirements. The noise of the water inlet 202 corresponding to the first rotating speed gear can be obtained based on a mathematical statistical method according to the obtained noise data.

[0078] For example, the arithmetic mean of multiple noise data of the water inlet 202 obtained within a period of time can be taken as the noise of the water inlet 202 corresponding to the first rotating speed gear, the weighted average of multiple noise data can be taken as the noise of the water inlet 202 corresponding to the first rotating speed gear, the maximum value in multiple noise data can be taken as the noise of the water inlet 202 corresponding to the first rotating speed gear, and the median value in multiple noise data can be taken as the noise of the water inlet 202 corresponding to the first rotating speed gear, and the like. The embodiments of the present application do not make specific limitations in this regard.

[0079] The first rotating speed gear corresponding to the minimum value of the noise of the water inlet is determined as the target rotating speed gear corresponding to the target value.

[0080] Specifically, the data server 201 can analyze all the obtained first rotating speed gears of the circulating pump 204 and the corresponding noise of the water inlet 202, and determine the first rotating speed gear corresponding to the minimum value of the noise of the water inlet 202 as the target rotating speed gear corresponding to the target value.

[0081] The embodiments of the present application adjust the rotating speed gear of the circulating pump in sequence from high to low, analyze and obtain the gear with the minimum noise of the water inlet, and determine the rotating speed gear of the circulating pump with the minimum noise of the water inlet, so that the circulating pump of the ship self-flow cooling system can operate at a lower noise while meeting the cooling seawater flow demand of the ship heat source equipment.

[0082] Based on the content of the above embodiments, obtaining the noise of the water inlet corresponding to each first rotating speed gear comprises:

[0083] With the circulation pump speed setting adjusted to each first speed setting, the first data collected by the underwater acoustic sensor within the first time period is acquired; the underwater acoustic sensor is set at the water inlet.

[0084] Specifically, the underwater acoustic sensor 205 is a sensor capable of detecting underwater sounds.

[0085] The underwater acoustic sensor 205 can be installed at the inlet of the ship's gravity cooling system to detect the noise of the ship's gravity cooling system.

[0086] The first time period is the period after the speed setting of the circulating pump 204 is adjusted to the current speed setting.

[0087] The first data is the noise data of the water inlet of the ship's self-flowing cooling system collected by the underwater acoustic sensor 205.

[0088] With the speed setting of the circulating pump 204 adjusted to each first speed setting, the underwater acoustic sensor 205 collects first data and uploads it to the data server 201 within a first time period. The first data may include multiple data points.

[0089] For example, when the speed range of the circulating pump 204 is adjusted to each first speed range, during the first time period [t] a ,t b Inside, the signals collected by the underwater acoustic sensor 205 can be S1, S2, S3…S k There are a total of k data points. The time interval for collecting the sound signals can be fixed or not; this embodiment of the invention does not impose specific limitations.

[0090] The average value of the first data is obtained as the noise of the inlet corresponding to the first speed gear.

[0091] Specifically, for the first data collected by the sound sensor, the average value of the first data is calculated for each first speed gear, and uploaded to the data server 201 as the noise of the water inlet 202 corresponding to the first speed gear.

[0092] Based on the acquired noise data and using mathematical statistics methods, the noise of the inlet 202 corresponding to the first speed setting can be obtained.

[0093] For example, when the speed range of the circulating pump 204 is adjusted to each first speed range, during a certain time period [t] a ,t b The signals collected by the underwater acoustic sensor 205 can be S1, S2, S3…S k Given a total of k data points, calculate the average of the k data points, i.e.

[0094]

[0095] S represents the noise level of the inlet 202 corresponding to the first speed setting. The data server 201 can obtain the noise level S of the inlet 202 corresponding to the first speed setting.

[0096] This invention uses a hydroacoustic sensor to collect multiple noise information from the inlet over a period of time and calculates the noise information of the inlet at a certain speed setting, which can more accurately obtain the noise information corresponding to the speed setting of the circulating pump.

[0097] Based on any of the above embodiments, adjusting the speed settings of the circulating pump sequentially from high to low as the first speed setting includes:

[0098] The speed of the circulating pump is adjusted sequentially from high to low. When the speed of the circulating pump is adjusted to the current speed, the second data collected by the flow meter during the second time period is obtained. The flow meter is installed inside the pipe of the ship's gravity cooling system.

[0099] Specifically, flow meter 206 is a sensor that can detect the flow rate of passing liquid.

[0100] A flow meter can be installed inside the pipes of a ship's gravity cooling system to detect the flow rate of seawater passing through the system.

[0101] The second time period is the period after the speed setting of the circulating pump 204 is adjusted to the current speed setting. The second time period may be the same as or different from the first time period.

[0102] The second data point is the flow rate of seawater passing through the flow meter, collected during the second time period. There can be one or more second data points.

[0103] Based on the second data, the current speed gear is determined to be the first speed gear.

[0104] Specifically, when there are multiple sets of second data, the circulation flow rate data of the ship's gravity cooling system can be obtained based on the acquired second data using mathematical statistical methods. Mathematical statistical methods can include methods such as averaging, weighted averaging, variance calculation, median calculation, and maximum value calculation.

[0105] For example, by sequentially adjusting the speed range of the circulation pump 204 from high to low, and when the speed range of the circulation pump 204 is adjusted to the current speed range, during the second time period [t]... c ,t d Inside, flow meter 206 collects the flow rates Q1, Q2, Q3…Q of seawater passing through the ship's gravity cooling system. nThe n pieces of data are the circulation flow data of the ship natural cooling system. The time interval for collecting the flow signal can be fixed or not fixed, and the present application does not make specific limitation.

[0106] The circulation flow of the ship natural cooling system is calculated, that is, the average value of the flow of the seawater passing through the ship natural cooling system collected by the flow meter 206 in a period of time, that is,

[0107]

[0108] Q is the circulation flow data of the ship natural cooling system in the second time period. The data server 201 can obtain the circulation flow data Q of the ship natural cooling system in the second time period.

[0109] The first rotation speed gear is the rotation speed gear of the circulation pump 204 of the ship natural cooling system, which makes the circulation flow of the ship natural cooling system meet the cooling demand of the ship heat source equipment.

[0110] It is judged whether Q meets the cooling demand of the ship heat source equipment. If Q meets the cooling demand of the ship heat source equipment, the rotation speed gear of the circulation pump 204 of the ship natural cooling system corresponding to Q can be the first rotation speed gear; if Q does not meet the cooling demand of the ship heat source equipment, the rotation speed gear of the circulation pump 204 of the ship natural cooling system corresponding to Q is not the first rotation speed gear.

[0111] The embodiment of the present application judges whether the rotation speed gear of the circulation pump of the ship natural cooling system is the first gear by calculating whether the circulation flow of the ship natural cooling system meets the cooling demand of the ship heat source equipment at the rotation speed gear of the circulation pump of the ship natural cooling system, so that it can be ensured that the circulation flow of the ship natural cooling system meets the cooling demand of the ship heat source equipment at the first rotation speed gear, and the equipment can work normally.

[0112] The noise control device of the circulation pump 204 of the ship natural cooling system provided by the present application is described below, and the noise control device of the circulation pump of the ship natural cooling system described below can be correspondingly referred to the noise control method of the circulation pump of the ship natural cooling system described above.

[0113] Figure 3 is a structural schematic diagram of the noise control device of the circulation pump of the ship natural cooling system provided by the present application. As Figure 3 shown, the device comprises a first acquisition module 301, a second acquisition module 302 and a control module 303, wherein:

[0114] The first acquisition module 301 is used for acquiring the target value of the circulation flow demand of the ship natural cooling system.

[0115] The second acquisition module 302 is configured to acquire a target rotating speed gear of the circulating pump 204 based on the target value.

[0116] The control module 303 is configured to control the circulating pump 204 based on the target rotating speed gear.

[0117] The target rotating speed gear is a rotating speed gear in first rotating speed gears of the circulating pump, which makes the noise of the water intake 202 minimum. The first rotating speed gear is a rotating speed gear in the rotating speed gears of the circulating pump, which makes the real-time circulating flow of the ship self-cooling system greater than the target value.

[0118] Specifically, the first acquisition module 301, the second acquisition module 302 and the control module 303 can be electrically connected.

[0119] The first acquisition module 301 can automatically acquire the target value according to the current navigation speed condition, or the target value can be input from the operation platform 203 and uploaded to the first acquisition module 301 by an operator.

[0120] The second acquisition module 302 can acquire the target rotating speed gear by adjusting the rotating speed gear of the circulating pump 204 on the premise of meeting the cooling demand of the heat source equipment of the ship. The second acquisition module 302 can also acquire the target rotating speed gear based on a comparison table between the navigation speed condition and the target value and the target rotating speed gear, according to the target value.

[0121] The control module 303 can send an instruction to the controller 207 after acquiring the target rotating speed gear, and control the circulating pump 204 through the controller 207 to set the gear of the circulating pump 204 to the target rotating speed gear.

[0122] Optionally, the second acquisition module 302 comprises:

[0123] The first determination unit is configured to determine the target rotating speed gear corresponding to the target value by adjusting the rotating speed gear of the circulating pump 204 in a case where the corresponding relationship between the target value and the target rotating speed gear is not determined.

[0124] Optionally, the second acquisition module 302 comprises:

[0125] The first acquisition unit is configured to acquire the target rotating speed gear based on the target value and the corresponding relationship in a case where the corresponding relationship between the target value and the target rotating speed gear is determined.

[0126] Optionally, the first determination unit comprises:

[0127] The acquisition sub-unit is configured to adjust the rotating speed gear of the circulating pump 204 to the first rotating speed gear in order from high to low, and acquire the noise of the water intake 202 corresponding to each first rotating speed gear.

[0128] The determining sub-unit is configured to determine the first rotating speed gear corresponding to the minimum noise of the water inlet 202 as the target rotating speed gear corresponding to the target value.

[0129] Optionally, the acquiring sub-unit can be specifically configured to acquire first data collected by an underwater sound sensor in a first time period under the condition that the rotating speed gear of the circulating pump 204 is adjusted to each first rotating speed gear; the underwater sound sensor is arranged at the water inlet 202; and an average value of the first data is acquired as the noise of the water inlet 202 corresponding to the first rotating speed gear.

[0130] Optionally, the acquiring sub-unit can be specifically configured to:

[0131] The rotating speed gear of the circulating pump 204 is adjusted in a descending order, and second data collected by a flow meter 206 in a second time period is acquired under the condition that the rotating speed gear of the circulating pump 204 is adjusted to a current rotating speed gear; the flow meter 206 is arranged inside a pipeline of the ship self-cooling system; and the current rotating speed gear is determined as the first rotating speed gear based on the second data.

[0132] The ship self-cooling system circulating pump noise control device provided by the embodiment of the present application is used for executing the ship self-cooling system circulating pump noise control method provided by the present application, and the implementation manner of the ship self-cooling system circulating pump noise control device is consistent with the implementation manner of the ship self-cooling system circulating pump noise control method provided by the present application, and the same beneficial effects can be achieved, and thus the description and definition in the ship self-cooling system circulating pump noise control method in the foregoing embodiments can be used for understanding the execution modules in the embodiment of the present application.

[0133] The ship self-cooling system circulating pump noise control device is used for the ship self-cooling system circulating pump noise control method in the foregoing embodiments. Therefore, the description and definition in the ship self-cooling system circulating pump noise control method in the foregoing embodiments can be used for understanding the execution modules in the embodiment of the present application.

[0134] The embodiment of the present application can obtain the rotating speed gear of the circulating pump that minimizes the noise of the water inlet under the premise that the real-time circulating flow of the ship self-cooling system meets the cooling demand of the heat source equipment of the ship by adjusting the rotating speed gear of the circulating pump, so that the ship self-cooling system circulating pump can be controlled to operate at a lower noise under the condition that the cooling seawater flow demand of the heat source equipment of the ship is met.

[0135] Figure 4 An example of an entity structure diagram of an electronic device is shown in FIG. 1. Figure 4As shown, the electronic device can include a processor 401, a communications interface 402, a memory 403, and a communications bus 404, wherein the processor 401, the communications interface 402, and the memory 403 complete mutual communication through the communications bus 404. The processor 401 can invoke a logical instruction in the memory 403 to execute the noise control method of the circulating pump of the ship natural cooling system, which includes: obtaining a target value of circulating flow demand of the ship natural cooling system; obtaining a target speed gear of the circulating pump based on the target value; and controlling the circulating pump based on the target speed gear; wherein the target speed gear is a speed gear in first speed gears of the circulating pump that minimizes the noise of the water intake 202; and the first speed gear is a speed gear in each speed gear of the circulating pump that makes the real-time circulating flow of the ship natural cooling system greater than the target value.

[0136] In addition, the logical instruction in the memory 403 described above can be implemented in the form of a software functional unit and sold or used as an independent product, which can be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0137] On the other hand, the present application also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium, and the computer program can be executed by a processor to enable a computer to execute the noise control method of the circulating pump of the ship natural cooling system provided by the above-mentioned methods, which includes: obtaining a target value of circulating flow demand of the ship natural cooling system; obtaining a target speed gear of the circulating pump based on the target value; and controlling the circulating pump based on the target speed gear; wherein the target speed gear is a speed gear in first speed gears of the circulating pump that minimizes the noise of the water intake; and the first speed gear is a speed gear in each speed gear of the circulating pump that makes the real-time circulating flow of the ship natural cooling system greater than the target value.

[0138] The computer program product provided by the embodiment of the present application, when executed, implements the noise control method of the circulating pump of the ship natural cooling system, the specific implementation manner is consistent with the implementation manner described in the foregoing embodiment of the method, and the same beneficial effects can be achieved, and details are not described herein again.

[0139] In another aspect, the present application also provides a non-transitory computer readable storage medium having a computer program stored thereon, the computer program being executed by a processor to implement the noise control method of the circulating pump of the ship natural cooling system provided by the foregoing method, the method comprising: obtaining a target value of circulating flow demand of the ship natural cooling system; obtaining a target rotating speed gear of the circulating pump based on the target value; and controlling the circulating pump based on the target rotating speed gear; wherein the target rotating speed gear is a rotating speed gear in first rotating speed gears of the circulating pump, which makes the noise of the water intake port minimum; and the first rotating speed gears are rotating speed gears in the rotating speed gears of the circulating pump, which make the real-time circulating flow of the ship natural cooling system greater than the target value.

[0140] The computer program stored on the non-transitory computer readable storage medium provided by the embodiment of the present application, when executed, implements the noise control method of the circulating pump of the ship natural cooling system, the specific implementation manner is consistent with the implementation manner described in the foregoing embodiment of the method, and the same beneficial effects can be achieved, and details are not described herein again.

[0141] The device embodiments described above are only schematic, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment scheme. Those skilled in the art can understand and implement without creative labor.

[0142] Through the description of the foregoing embodiments, those skilled in the art can clearly understand that each embodiment can be realized by means of software and the necessary general hardware platform, and of course can also be realized by hardware. Based on such understanding, the foregoing technical solutions essentially or said parts of the prior art that make contributions can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the method described in each embodiment or some parts of the embodiment.

[0143] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of noise control for a ship's self-cooling system circulating pump, characterized by, The method comprises the following steps: obtaining a target value of circulating flow demand of the ship self-cooling system under a navigation speed working condition; obtaining a target rotating speed gear of the circulating pump based on the target value, comprising: in a case where a corresponding relationship between the target value and the target rotating speed gear is determined, obtaining the target rotating speed gear based on the corresponding relationship between the target value and the target rotating speed gear; a control table between the navigation speed working condition, the target value and the target rotating speed gear is pre-stored; in a case where the corresponding relationship between the target value and the target rotating speed gear is not determined, determining the target rotating speed gear corresponding to the target value by adjusting the rotating speed gear of the circulating pump; controlling the circulating pump based on the target rotating speed gear; wherein the target rotating speed gear is a rotating speed gear in first rotating speed gears of the circulating pump, which makes noise of a water intake port minimum; the first rotating speed gears are rotating speed gears in each rotating speed gear of the circulating pump, which make real-time circulating flow of the ship self-cooling system greater than the target value; the adjusting of the rotating speed gear of the circulating pump to determine the target rotating speed gear corresponding to the target value comprises: adjusting the rotating speed gear of the circulating pump to the first rotating speed gear in a sequence from high to low, and obtaining noise of the water intake port corresponding to each first rotating speed gear; determining the first rotating speed gear corresponding to the minimum noise of the water intake port as the target rotating speed gear corresponding to the target value.

2. The noise control method of a ship's gravity cooling system circulating pump according to claim 1, characterized in that, the obtaining of the noise of the water intake port corresponding to each first rotating speed gear comprises: obtaining first data collected by a water sound sensor in a first time period in a case where the rotating speed gear of the circulating pump is adjusted to each first rotating speed gear; the water sound sensor is arranged at the water intake port; obtaining an average value of the first data as the noise of the water intake port corresponding to the first rotating speed gear.

3. The method of claim 1, wherein the adjusting of the rotating speed gear of the circulating pump to the first rotating speed gear in a sequence from high to low comprises: adjusting the rotating speed gear of the circulating pump in a sequence from high to low, obtaining second data collected by a flow meter in a second time period in a case where the rotating speed gear of the circulating pump is adjusted to a current rotating speed gear; the flow meter is arranged inside a pipeline of the ship self-cooling system; determining the current rotating speed gear as the first rotating speed gear based on the second data.

4. A noise control device for a ship's self-cooling system circulating pump, characterized by, The method comprises the following steps: a first obtaining module is configured to obtain a target value of circulating flow demand of the ship self-cooling system under a navigation speed working condition; The second acquisition module is configured to acquire the target rotating speed gear of the circulating pump based on the target value, including: in a case where a corresponding relationship between the target value and the target rotating speed gear is determined, acquiring the target rotating speed gear based on the corresponding relationship between the target value and the target rotating speed gear; a comparison table between the navigation speed condition, the target value and the target rotating speed gear is pre-stored; in a case where the corresponding relationship between the target value and the target rotating speed gear is not determined, determining the target rotating speed gear corresponding to the target value by adjusting the rotating speed gear of the circulating pump; The control module is configured to control the circulating pump based on the target rotating speed gear. The target rotating speed gear is a rotating speed gear in first rotating speed gears of the circulating pump, which makes the noise of the water intake port minimum; the first rotating speed gear is a rotating speed gear in each rotating speed gear of the circulating pump, which makes the real-time circulating flow of the ship self-cooling system greater than the target value; The adjusting of the rotating speed gear of the circulating pump and the determination of the target rotating speed gear corresponding to the target value include: adjusting the rotating speed gear of the circulating pump to the first rotating speed gear in a sequence from high to low, and acquiring the noise of the water intake port corresponding to each first rotating speed gear; and determining the first rotating speed gear corresponding to the minimum noise of the water intake port as the target rotating speed gear corresponding to the target value.

5. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the program to implement the noise control method of the circulating pump of the ship self-cooling system according to any one of claims 1 to 3.

6. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the noise control method of the circulating pump of the ship self-cooling system according to any one of claims 1 to 3.

7. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the noise control method of the circulating pump of the ship self-cooling system according to any one of claims 1 to 3.

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