CN111532397B - Energy management monitoring devices for boats and ships - Google Patents
Energy management monitoring devices for boats and ships Download PDFInfo
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- CN111532397B CN111532397B CN202010310988.7A CN202010310988A CN111532397B CN 111532397 B CN111532397 B CN 111532397B CN 202010310988 A CN202010310988 A CN 202010310988A CN 111532397 B CN111532397 B CN 111532397B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
- B63B79/10—Monitoring properties or operating parameters of vessels in operation using sensors, e.g. pressure sensors, strain gauges or accelerometers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Abstract
The invention discloses an energy management monitoring device for a ship, which belongs to the field of ship energy management and power grid power monitoring and comprises the following components: the system comprises a main control panel, a communication expansion panel, an LED display panel, a flow sensor, a temperature sensor and an electric quantity sensor; the main control panel is connected with an external power supply and provides power for the LED display panel, receives data of the whole-ship public network through the Ethernet interface and uploads energy efficiency information and decision suggestion results acquired by the main control panel to the whole-ship public network; the system is connected with a flow sensor through a first RS485 communication interface and is connected with an electric quantity sensor through a first CAN communication interface; the communication expansion board is connected with the communication expansion board through the expansion pin header; the communication expansion board is connected with the temperature sensor through a second RS485 communication interface and is connected with the electric quantity sensor through a second CAN communication interface. The ship energy efficiency monitoring system has the capability of acquiring, monitoring and processing the ship electric quantity information, the cabin heat load information and the pump set equipment flow pressure difference information, and realizes the monitoring of the ship energy efficiency information.
Description
Technical Field
The invention belongs to the field of ship energy management and power grid power monitoring, and particularly relates to an energy management monitoring device for a ship.
Background
The method has the advantages of increasing continuous cruising power, reducing energy consumption, improving sailing economy, improving safety, environmental adaptability and electromagnetic compatibility, and reducing vibration, noise and energy consumption, is a constant theme of technical development of aircrafts such as ships, submergence vehicles, unmanned aircrafts, deep sea space stations and the like, and is also an obvious technical characteristic of the aircrafts. Because navigation devices such as ships, submersible vehicles, unmanned navigation devices and deep sea space stations are typical island type energy systems, any working condition change is accompanied by the process of mutual transformation of chemical energy, electric energy, heat energy, mechanical energy and the like, the energy quantity carried by single navigation is limited, the energy consumption of a large number of auxiliary engine energy consumption users is effectively controlled, the limited energy resources are used for improving the navigation distance, and the problem to be solved urgently is solved.
On one hand, the traditional energy management monitoring device or power grid monitoring device only collects and monitors the electric quantity information of the whole ship or part of important equipment, lacks the collection and processing of energy efficiency information such as cabin heat load, pump set flow pressure difference, electromechanical conversion efficiency and the like, and also lacks the capability of providing auxiliary machine energy-saving regulation suggestions according to energy efficiency data; on the other hand, a targeted design is not developed for the new requirements of aircrafts such as ships, submergence vehicles, unmanned aircrafts, deep sea space stations and the like. Therefore, an energy management and monitoring device for ships is needed, which has complete functions, safety, reliability and the capability of providing energy-saving regulation suggestions, can realize the acquisition, monitoring and processing capabilities of energy efficiency information such as electric quantity, heat and efficiency of aircrafts such as ships, has the capability of energy-saving regulation of air conditioners and pump sets, and meets the requirements of vibration reduction, noise reduction, energy conservation, strong environmental adaptability and high electromagnetic compatibility of ships and the like.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides an energy management monitoring device for a ship, so that the technical problems that the traditional energy management monitoring device or a power grid monitoring device is single in function and lacks energy-saving decision-making advising capability are solved, the energy management monitoring device has the capabilities of acquiring, monitoring and processing the whole ship electric quantity information, the cabin heat load information and the pump set equipment flow pressure difference information, and the monitoring of the whole ship energy efficiency information is realized.
In order to achieve the above object, the present invention provides an energy management monitoring device for a ship, comprising: the system comprises a main control module, a communication expansion module, an LED display module, a plurality of flow sensors, a plurality of temperature sensors and a plurality of electric quantity sensors;
the main control module is connected with an external power supply and provides power for the LED display module, receives data of the whole ship public network through an Ethernet interface and uploads energy efficiency information and decision suggestion results acquired by the main control module to the whole ship public network; the main control module is connected with the flow sensors through a first RS485 communication interface and is connected with the electric quantity sensors through a first CAN communication interface; the main control module is connected with the communication expansion module through an expansion pin header; the communication expansion module is connected with the temperature sensors through second RS485 communication interfaces and connected with the electric quantity sensors through second CAN communication interfaces, and standby CAN communication interfaces are reserved in the communication expansion module.
Preferably, the main control module is configured to obtain an air heat variation value between an initial operating state time and an end operating state time based on an average temperature value of each temperature sensor in an end operating state in an adjacent volume range, an average temperature value of each temperature sensor in an initial operating state in an adjacent volume range, and the adjacent volume size; then calculating a heat load value according to the air heat change value; and making an air conditioner adjusting strategy according to the relation between the heat load value and the refrigerating power of the air conditioner at the low gear.
Preferably, from QVariation i＝C·ρ·Vi·(TFinally, i-TBeginning, i) Determining the air heat variation value Q in the range of the ith temperature sensor monitoring areaVariation iWherein C is the air specific heat value, rho is the air density, and V isiRepresenting the size of said adjacent volume, TFinally, iIndicating the moment of ending the operating condition, the ith temperature sensor being in the vicinity of the volume ViAverage temperature value, T, within the rangeBeginning, iIndicating the moment of initial operation of the ith temperature sensor in the proximity volume ViAn average temperature value within the range.
Preferably, from PThermal load＝QGeneral assemblyT determining the thermal load value P in the range of the monitoring area of the ith temperature sensorThermal loadWherein Q isGeneral assembly＝ρ·t+QVariation iAnd t is the time difference between the ending working time and the initial working time.
Preferably, the air conditioning adjustment strategy is: if PThermal load＞PLow systemAdjusting the air conditioner in the monitoring area range of the ith temperature sensor to be high-grade; if 0 <PThermal load≤PLow systemAdjusting the air conditioner in the monitoring area range of the ith temperature sensor to be in a low gear; if PThermal loadIf not more than 0, the air conditioner in the monitoring area range of the ith temperature sensor is closed, wherein PLow systemIndicating the cooling power at the low gear of the air conditioner.
Preferably, the main control module is further configured to obtain an electromechanical conversion efficiency of the pump set according to the lift, the flow rate and the input power of the pump set in the current working state of the pump set, then determine whether the current rotation speed and the electromechanical conversion efficiency meet a preset design value requirement, and if not, query a preset decision library and give decision information.
Preferably, is prepared from
Determining the electromechanical conversion efficiency eta of the pump unitElectromechanicalWherein ρ is a fluid density, g is a gravitational acceleration, H is a lift of the pump set in a current working state, Q is a flow rate obtained by a flow sensor arranged at the pump set, and p is a pump set input power.
Preferably, the device shell adopts cast iron panel beating processing technology, and external connector adopts the aviation plug form, adopts the stainless steel passivation material, installs spring damper additional, and both sides all use the screw fastening, and the lock is died in order to avoid the vibration pine to take off with the spring gasket lock.
Preferably, the LED display module comprises a plurality of double-color LED lamp beads, and human-computer interaction is realized through display combinations of different colors of the lamp beads.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1) the energy management monitoring device for the ship has the advantages that the energy management monitoring device for the ship has complete energy efficiency information (at least comprising cabin electric equipment electric quantity information, cabin heat load information, flow, pressure difference and rotating speed information of transmission equipment such as a pump set, a fan and the like) collection, summarization and transmission capability;
2) the device of the invention effectively avoids air conditioner energy waste caused by human factors by calculating the cabin heat load data and providing air conditioner adjustment suggestions, and improves continuous navigation capacity;
3) the device of the invention enables the pump unit equipment to operate at a proper working condition point by calculating and evaluating the electromechanical conversion efficiency of the pump unit and providing an adjustment suggestion, thereby improving the efficiency and reducing the energy consumption;
4) the device has the excellent characteristics of strong electromagnetic compatibility, impact vibration resistance and the like, and is suitable for being used in severe environment working conditions such as ships and the like.
Drawings
Fig. 1 is a composition and wiring diagram of an energy management monitoring device for a ship according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a cabin thermal load calculation and air conditioning decision flow according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a pump set efficiency calculation, evaluation and decision process according to an embodiment of the present invention;
wherein, 1 is main control module, 2 is the communication extension module, 3 is the LED display module, 4 is flow sensor, 5 is temperature sensor, 6 is the electric quantity sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the present examples, "first", "second", etc. are used for distinguishing different objects, and are not necessarily used for describing a particular order or sequence.
The energy management monitoring device for the ship can realize the collection, the summarization and the transmission of the electric quantity information of electric equipment, the cabin temperature information, the flow, the pressure difference and the rotating speed information of transmission equipment, such as a pump set, a fan and the like, in each cabin of aircrafts, such as the ship and the like; the cabin heat load calculation can be realized, and an air conditioning regulation suggestion is provided; the calculation and evaluation of the electromechanical conversion efficiency of the pump set can be realized, and an adjustment suggestion is provided; the electromagnetic noise reduction device has the characteristics of low noise, low energy consumption, strong electromagnetic compatibility, high reliability, high safety, impact vibration resistance and the like, is suitable for being used in severe environment working conditions such as ships and the like, and meets the requirements of energy conservation and noise reduction of the ships and the like; by calculating the electromechanical conversion efficiency of the heat load and the pump set and providing an adjustment suggestion for the auxiliary engine (air conditioner and pump set) with important energy consumption of the ship, the energy consumption of the auxiliary engine is effectively reduced, the energy of the ship is saved, and the sailing distance is increased. The system is suitable for energy management and electric power monitoring of ships, submersible vehicles, unmanned aircrafts and deep sea space stations.
Fig. 1 is a schematic structural diagram of an energy management monitoring device for a ship according to an embodiment of the present invention, including: the intelligent LED traffic light comprises a main control module 1, a communication expansion module 2, an LED display module 3, a plurality of flow sensors 4, a plurality of temperature sensors 5, a plurality of electric quantity sensors 6 and the like.
As shown in fig. 1, a main control module 1 is connected with an external 24V power supply and provides the 24V power supply for an LED display module 3 to control an LED indicator lamp to realize man-machine interaction display, and the main control module 1 receives data of a ship-wide public network (mainly including electric quantity information uploaded to the ship-wide public network by other equipment, pressure difference of a pump set, lift and rotation speed information, etc.) through an ethernet interface and uploads energy efficiency information and decision suggestion results acquired by the main control module 1 to the ship-wide public network;
the main control module 1 is provided with a first RS485 interface and a first CAN bus interface for connecting sensors with communication capabilities, such as a flow sensor 4, an electric quantity sensor 6 and the like; the main control module 1 is connected with the communication extension module 2 through the extension pin header and is used for extending RS485 and CAN communication interface, and the communication extension module 2 includes the CAN communication interface of two extensions and the communication interface that an RS485 interface is used for extending main control module, and then is connected with temperature sensor 5 through the second RS485 interface of extension, is connected with electric quantity sensor 6 through the second CAN interface of extension, and leaves reserve CAN communication interface.
The LED display module comprises a plurality of double-color LED lamp beads, and human-computer interaction is realized through display combinations of different colors of the lamp beads.
In the embodiment of the invention, the shell of the device adopts a cast iron sheet metal machining process, and has the characteristics of attractive appearance, high structural strength and high machining precision; the external connector is in the form of an aviation plug, the fastening mode is simple and convenient to operate, the connection is reliable, vibration and impact are resisted, and the salt spray resistance of the connector is improved by adopting a stainless steel passivation material; install spring shock absorber additional, and both sides all use the screw fastening, and it dies in order to avoid vibrating the pine to take off to add the spring shim lock. The anti-vibration noise-reduction device has the characteristics of impact vibration resistance and low noise, and is suitable for being used in severe environment working conditions such as ships.
Fig. 2 is a schematic flow chart of a method for calculating a cabin heat load and making an air-conditioning decision by a main control module 1 according to an embodiment of the present invention, which includes the following steps:
1) setting a temperature sensor: a plurality of temperature sensors are uniformly arranged in the ship cabin and used for measuring the proximity volume V of the temperature sensorsiAn average temperature value within the range;
2) acquiring an air conditioner basic performance value: obtaining consumed electric power P under high-grade of air conditionerHeight ofConsumed electric power P at low gearIs low inAnd the refrigeration power P under the high-grade position of the air conditionerHigh systemRefrigeration power P under low gear of air conditionerLow system；
3) Acquiring initial working state information: obtaining the refrigeration power p of the air conditioner in the initial working state and the adjacent volume V of each temperature sensor in the initial working stateiMean temperature value T within the rangeBeginning, iWherein i represents the ith temperature sensor;
4) acquiring ending work state information: acquiring the near volume V of each temperature sensor in the working stateiMean temperature value T within the rangeFinally, iCalculating the air heat variation value Q in the time periodVariation i＝C·ρ·Vi·(TFinally, i-TBeginning, i) C is an air specific heat value, rho is air density, and the data value of the temperature sensor in the working state is used as the data value of the temperature sensor in the initial working state in the next period;
5) calculating a thermal load value PThermal load＝QGeneral assemblyT, wherein QGeneral assembly＝ρ·t+QVariation iT is the time difference between the ending working time and the initial working time;
6) and (3) giving an adjustment suggestion: turn up, turn down, or turn off the air conditioner.
Wherein the acquisition conditions of the adjustment recommendation are: if PThermal load＞PLow systemIf so, the air conditioner is adjusted to be high-grade; if 0 < PThermal load≤PLow systemIf so, adjusting the air conditioner to be in a low gear; if PThermal loadAnd if the air temperature is less than or equal to 0, the air conditioner is closed.
Fig. 3 is a schematic flow chart of calculating, evaluating and deciding the efficiency of the pump set by the main control module according to the embodiment of the present invention, which includes the following steps of calculating and evaluating the electromechanical conversion efficiency of the pump set and providing an adjustment suggestion:
1) the flow and rotating speed sensor is arranged: arranging a flow sensor and a rotating speed sensor at a pump group to be measured and evaluated, wherein data of the rotating speed sensor is uploaded to a whole-ship public network through a starter to which the pump group belongs, and an energy management monitoring device acquires corresponding data through the whole-ship public network;
2) acquiring energy efficiency information of the current working state of a pump set: acquiring data of a pump set input power p, a lift H (acquired through a whole-ship public network), a flow Q and a rotating speed n under the current working state of the pump set;
3) electrical conversion efficiency of computer
Wherein rho is the fluid density and g is the gravitational acceleration;
4) and (3) giving an adjustment suggestion: and judging whether the current rotating speed and the electromechanical conversion efficiency meet the requirement of a preset design value, if not, inquiring a preset decision library and giving decision information.
The preset design value requirement can be determined according to actual needs, and the preset decision library is a database which is made in advance and determines decision information according to the rotating speed and the electromechanical conversion efficiency.
The novel energy management monitoring device can provide energy-saving regulation suggestions for the energy consumption major households of the auxiliary machine according to energy efficiency data acquired and processed by the novel energy management monitoring device, so that the energy consumption of the auxiliary machine of the whole ship is reduced, the sailing distance is increased, and the economic benefit is improved.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. An energy management monitoring device for a ship, comprising: the system comprises a main control module, a communication expansion module, an LED display module, a plurality of flow sensors, a plurality of temperature sensors and a plurality of electric quantity sensors;
the main control module is connected with an external power supply and provides power for the LED display module, receives data of the whole ship public network through an Ethernet interface and uploads energy efficiency information and decision suggestion results acquired by the main control module to the whole ship public network; the main control module is connected with the flow sensors through a first RS485 communication interface and is connected with the electric quantity sensors through a first CAN communication interface; the main control module is connected with the communication expansion module through an expansion pin header; the communication expansion module is connected with the temperature sensors through second RS485 communication interfaces and connected with the electric quantity sensors through second CAN communication interfaces, and standby CAN communication interfaces are reserved in the communication expansion module;
the main control module is used for obtaining an air heat change value between the time of the initial working state and the time of the ending working state based on the average temperature value of each temperature sensor in the adjacent volume range in the ending working state, the average temperature value of each temperature sensor in the initial working state in the adjacent volume range and the size of the adjacent volume; then calculating a heat load value according to the air heat change value; making an air conditioner adjusting strategy according to the relation between the heat load value and the refrigerating power of the air conditioner at the low gear;
wherein, Q isVariation i＝C·ρ·Vi·(TFinally, i-TBeginning, i) Determining the air heat variation value Q in the range of the ith temperature sensor monitoring areaVariation iWherein C is the air specific heat value, rho is the air density, and V isiRepresenting the size of said adjacent volume, TFinally, iIndicating the moment of ending the operating condition, the ith temperature sensor being in the vicinity of the volume ViAverage temperature value, T, within the rangeBeginning, iIndicating the moment of initial operation of the ith temperature sensor in the proximity volume ViAn average temperature value within the range;
from PThermal load＝QGeneral assemblyT determining the thermal load value P in the range of the monitoring area of the ith temperature sensorThermal loadWherein Q isGeneral assembly＝p'·t+QVariation iT is the time difference between the ending working time and the initial working time, and p' is the refrigerating power of the air conditioner in the current calculation period;
the air conditioner adjusting strategy is as follows: if PThermal load＞PLow systemAdjusting the air conditioner in the monitoring area range of the ith temperature sensor to be high-grade; if 0 < PThermal load≤PLow systemAdjusting the air conditioner in the monitoring area range of the ith temperature sensor to be in a low gear; if PThermal loadIf not more than 0, the air conditioner in the monitoring area range of the ith temperature sensor is closed, wherein PLow systemIndicating the cooling power at the low gear of the air conditioner.
2. The device according to claim 1, wherein the main control module is further configured to obtain an electromechanical conversion efficiency of the pump set according to a lift, a flow rate and an input power of the pump set in a current working state of the pump set, determine whether a current rotation speed and the electromechanical conversion efficiency meet a preset design value requirement, and if not, query a preset decision library to give decision information.
3. The device of claim 2, wherein the device is made of
Determining the electromechanical conversion efficiency eta of the pump unitElectromechanicalWhereinρ' is the fluid density, g is the gravitational acceleration, H is the lift of the pump set in the current working state, Q is the flow rate obtained by a flow sensor arranged at the pump set, and p is the pump set input power.
4. The device according to any one of claims 1 to 3, wherein the device housing is made of cast iron sheet metal, the external connector is in the form of an aviation plug, is made of stainless steel passivated material, is provided with a spring damper, is fastened at two sides by using threads, and is locked by a spring gasket so as not to be loosened by vibration.
5. The device of claim 4, wherein the LED display module comprises a plurality of double-color LED lamp beads, and human-computer interaction is realized through display combinations of different colors of the lamp beads.
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| CN112307688B (en) * | 2020-10-29 | 2021-07-13 | 中国舰船研究设计中心 | System and method for monitoring, managing and optimizing energy efficiency of electric propulsion ship |
| CN114802648A (en) * | 2022-04-15 | 2022-07-29 | 中国舰船研究设计中心 | Ship generator technical state evaluation method and electronic equipment |
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