CN214190036U - LNG dual-fuel ship hybrid energy optimization and power intelligent adjustment device - Google Patents
LNG dual-fuel ship hybrid energy optimization and power intelligent adjustment device Download PDFInfo
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- CN214190036U CN214190036U CN202022026618.9U CN202022026618U CN214190036U CN 214190036 U CN214190036 U CN 214190036U CN 202022026618 U CN202022026618 U CN 202022026618U CN 214190036 U CN214190036 U CN 214190036U
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Abstract
The utility model discloses a LNG dual-fuel ship hybrid energy optimization and power intelligent calibration device, which mainly comprises an embedded main control mainboard, a power supply module, a calibration module, a Beidou and GPS module, an electric pulse signal generator unit, an interface module and a touch liquid crystal display module; the embedded main control main board is respectively connected with the power supply module, the adjusting module, the Beidou and GPS module, the electric pulse signal generator unit, the interface module and the touch liquid crystal display module; the power supply module is connected with the touch liquid crystal display module; the electric pulse signal generator unit is connected with the interface module. The device optimizes the manufacturing and assembling tolerance of the LNG/diesel dual-fuel engine of the ship, and achieves the purposes of improving power, reducing oil consumption and optimizing performance.
Description
Technical Field
The utility model relates to an energy optimization technique and power timing technique of LNG dual-fuel boats and ships, concretely relates to LNG dual-fuel boats and ships hybrid energy optimizes and power intelligence timing device.
Background
In recent years, with the development of science and technology, the LNG dual-fuel power ship gradually moves to the new-generation ship manufacturing industry, and the LNG fuel substitution rate becomes a key point for technical attack and popularization and application of the LNG novel ship, and is also an inevitable trend for popularization of green energy application. The diesel engine is the main driving power of ships in recent decades, and due to the serious air pollution caused by diesel combustion, a new technology and a new energy source are urgently needed to break the situation, so that the LNG dual-fuel engine is a historical opportunity. The LNG dual-fuel ship engine is developed from an automobile engine, and is not changed greatly from the automobile engine technology in technology. The engine ECU is difficult to adapt to all inland waterway in China, so that the LNG fuel substitution rate has great difference due to different waterway, different water regime and other factors. At present, an ECU (electronic control unit) calibration technology and equipment which can be adapted to a ship engine according to factors such as inland waterway and water regime are urgently needed, the substitution rate of LNG (liquefied natural gas) fuel is improved, and related technologies at home and abroad have certain limitations. According to the detection device and the detection method for the diesel-LNG dual-fuel engine management system disclosed by the Chinese patent application number 201310586455.1, sensing physical quantities of sensors are manually changed or a signal generator is adopted to simulate the running parameters of an engine, the ECU controls the actions of actuators such as a relay according to the detected AD quantity, and meanwhile, the ECU is matched with a touch information display screen to carry out real-time parameter monitoring, so that the detection on the control unit ECU, a remote control and information touch screen, a security control module and the like can be realized, and the detection device and the detection method are suitable for testing any diesel-LNG dual-fuel engine management system. For example, the inland ship diesel-LNG dual-fuel engine management system disclosed by the chinese patent application No. 201110462238.2, a central management system, an LNG gas supply and injection system, a safety monitoring and handling system, and a remote control and information system are added to an original inland ship parent diesel engine, a pure diesel operation mode and a diesel-LNG dual-fuel operation mode are designed, the engine is operated in the pure diesel mode when being started, when the gas system starts to work, the parent diesel engine automatically reduces diesel supply, the central management system gradually increases natural gas injection amount, and the optimal gas substitution rate is automatically analyzed by sampling and calculating dynamic data of rotating speed fluctuation rate, air-fuel ratio and combustion temperature, so as to realize real-time optimal control, the gas substitution rate can reach 85%, and the inland ship diesel-LNG dual-fuel engine management system can be used for controlling any diesel blended natural gas engine.
The problems that the above technologies do not solve are: (1) only ECU monitoring is carried out, or ECU is directly developed, and when the ECU is shipped, the ECU configuration cannot be adjusted according to actual conditions of a channel and a water regime; (2) the problem of optimal proportioning of the LNG dual fuel cannot be solved. Therefore, it is necessary to develop the research on the hybrid energy optimization and power intelligent adjustment device of the LNG dual-fuel ship.
Disclosure of Invention
An object of the utility model is to prior art not enough, provide a simple to operate's LNG dual-fuel boats and ships hybrid energy optimizes and power intelligence timing device, and boats and ships use the device when navigating, can transfer the best with the performance of LNG dual-fuel engine under the site environment to realize the optimal use of oil-gas ratio, reduce the oil consumption rate.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the LNG dual-fuel ship hybrid energy optimization and power intelligent adjusting device mainly comprises an embedded main control main board, a power supply module, an adjusting module, a Beidou and GPS module, an electric pulse signal generator unit, an interface module and a touch liquid crystal display module; the embedded main control main board is respectively connected with the power supply module, the adjusting module, the Beidou and GPS module, the electric pulse signal generator unit, the interface module and the touch liquid crystal display module; the power supply module is connected with the touch liquid crystal display module; the electric pulse signal generator unit is connected with the interface module.
The main control mainboard is solidified and integrated with a storage module, an operation module and a memory module; the electric pulse signal generator unit comprises an accelerator control module and a natural gas control module; the adjusting module comprises an ECU reading and writing module, a hybrid energy optimization module and a power adjusting module.
The interface module adopts a 232+485 dual-mode chip, integrates RS-485 and RS-232 interfaces, has a baud rate of 300-921600bps, has automatic control data transmission capability, is used for being in butt joint with an ECU of a ship engine, can read data of the ECU, and sends and writes data to the ECU;
the Beidou and GPS module supports Beidou 1 and Beidou 2, the single-point positioning precision reaches 2.0m, the direction finding precision reaches 0.2 degrees (1 m base line), and the speed measuring precision reaches 0.1m/s, and is responsible for acquiring channel position information and system time service in real time; the touch liquid crystal display module adopts a 7-inch IIC touch liquid crystal display screen, is responsible for displaying the process data and the result data of adjustment and optimization, provides a virtual keyboard, and can manually input oil supply numerical values and air supply numerical values.
The electric pulse signal generator unit provides electric pulse signals with certain width for an oil sprayer and an LNG (liquefied natural gas) inlet nozzle of a ship engine so as to control the oil injection quantity and the air inflow. The throttle control module receives the instruction of the adjusting module, forms an electric pulse signal with a certain width with the electric pulse signal generator, and sends the electric pulse signal to the ECU through the interface module to realize the control of the oil injection amount. The natural gas control module receives the instruction of the adjusting module, forms an electric pulse signal with the electric pulse signal generator, and sends the electric pulse signal to the ECU through the interface module to realize air intake control.
The storage module adopts a 32G FLASH storage chip and stores an embedded operating system, a power model, an oil-gas ratio model, a channel and a water regime model; the operation module adopts an embedded microprocessor; the memory module adopts a built-in RAM memory card.
The utility model discloses in, the timing unit reads operating mode data from ship engine ECU through interface module, including real-time engine speed, engine speed threshold value, real-time navigational speed, length of operation, temperature, real-time oil consumption, accumulative total oil consumption, real-time gas consumption, accumulative total gas consumption etc. obtain channel position information from big dipper and GPS module simultaneously; the power adjusting module establishes an initial power model according to the original engine rotating speed threshold and the channel position information. Sequentially adjusting the threshold value of the rotating speed of the engine in the initial power model, calculating the oil inlet amount and the air inlet amount through the operation module aiming at different threshold values, transmitting the oil inlet amount to the accelerator control module, and generating an accelerator control instruction in the accelerator control module; the air input is transmitted to a natural gas control module, and a natural gas control instruction is generated in the natural gas control module; the two instructions generate corresponding oil inlet quantity signals and air inlet quantity signals in an electric pulse signal generator; two signals are transmitted to the ECU from the interface module to control the engine to change the oil inlet amount and the air inlet amount, and meanwhile, the working condition data of the engine are continuously read. The threshold value of the engine speed and the corresponding oil inlet amount and air inlet amount are continuously changed until the engine speed reaches a relative extreme value, namely, under the state, the engine speed can not be increased no matter oil or gas is added. And at the moment, the extreme value is used as a new threshold value of the engine rotating speed, the threshold value is replaced by the threshold value of the initial power model, the new power model is stored in the storage module, and meanwhile, the ECU is written in through the ECU read-write module, so that the power adjustment is completed.
The utility model discloses in, hybrid optimization begins after the power timing is accomplished. The hybrid energy optimization module reads the power model from the storage module and establishes an initial oil-gas ratio model within the range of the engine speed threshold. Under the condition of maintaining the same engine speed, different oil-gas ratios are calculated, the electric pulse signal generating unit is sequentially controlled according to the different oil-gas ratios to generate electric pulse signals of oil inlet amount and air inlet amount, and the oil inlet amount and the air inlet amount of the engine are changed through the throttle control module, the natural gas control module and the interface module. In order to reduce fuel consumption, the lower the fuel-air ratio, the better the same engine speed. And after the lowest oil-gas ratio is measured, correlating the lowest oil-gas ratio with the current engine rotating speed, water regime data, channel data and ship navigation data, and updating an oil-gas ratio model. And when the rotating speed of each level of the engine and the corresponding lowest oil-gas ratio are tested, a final oil-gas ratio model is formed and stored in the storage module, so that the hybrid energy optimization and adjustment are completed.
The utility model discloses in, touch liquid crystal display module shows the data of timing process in real time, shows virtual keyboard simultaneously, can artifical input timing data, intervenes the timing process.
Compared with the prior art, the utility model discloses the advantage that possesses:
1. the installation is simple, and the ECU program does not need to be rewritten;
2. the ship is simple to use, and the power of the engine of the ship can be optimized in the water regime environment of the channel when the ship runs for two to three times on the same channel;
3. according to the adjusted oil-gas ratio model, the LNG natural gas can be used by the ship as far as possible, and the fuel oil utilization rate is greatly reduced.
Drawings
Fig. 1 is a schematic view of the structural framework of the present invention.
Detailed Description
The present invention is further described with reference to the following drawings and examples, but the scope of the present invention is not limited to the following examples.
Example (b):
as shown in the figure, the LNG dual-fuel ship hybrid energy optimization and power intelligent adjusting device mainly comprises an embedded main control main board, a power supply module, an adjusting module, a Beidou and GPS module, an electric pulse signal generator unit, an interface module and a touch liquid crystal display module; the embedded main control main board is respectively connected with the power supply module, the adjusting module, the Beidou and GPS module, the electric pulse signal generator unit, the interface module and the touch liquid crystal display module; the power supply module is connected with the touch liquid crystal display module; the electric pulse signal generator unit is connected with the interface module.
The main control mainboard is solidified and integrated with a storage module, an operation module and a memory module; the electric pulse signal generator unit comprises an accelerator control module and a natural gas control module; the adjusting module comprises an ECU reading and writing module, a hybrid energy optimization module and a power adjusting module.
The interface module adopts a 232+485 dual-mode chip, integrates RS-485 and RS-232 interfaces, has a baud rate of 300-921600bps, has automatic control data transmission capability, is used for being in butt joint with an ECU of a ship engine, can read data of the ECU, and sends and writes data to the ECU;
the Beidou and GPS module supports Beidou 1 and Beidou 2, the single-point positioning precision reaches 2.0m, the direction finding precision reaches 0.2 degrees (1 m base line), and the speed measuring precision reaches 0.1m/s, and is responsible for acquiring channel position information and system time service in real time; the touch liquid crystal display module adopts a 7-inch IIC touch liquid crystal display screen, is responsible for displaying the process data and the result data of adjustment and optimization, provides a virtual keyboard, and can manually input oil supply numerical values and air supply numerical values.
The electric pulse signal generator unit provides electric pulse signals with certain width for an oil sprayer and an LNG (liquefied natural gas) inlet nozzle of a ship engine so as to control the oil injection quantity and the air inflow.
In this embodiment, the number of channels of the electrical pulse signal generator is 4, the output impedance is 50Ohm, the baseline offset resolution is 2mV, the amplitude range is 10mVpp-5Vpp, the maximum frequency is 500Mhz, the period range is 10ps, and edges below 70ps can be generated under the condition of 5V @50 Ω.
The throttle control module receives the instruction of the adjusting module, forms an electric pulse signal with a certain width with the electric pulse signal generator, and sends the electric pulse signal to the ECU through the interface module to realize the control of the oil injection amount. The natural gas control module receives the instruction of the adjusting module, forms an electric pulse signal with the electric pulse signal generator, and sends the electric pulse signal to the ECU through the interface module to realize air intake control.
The memory adopts a 32G FLASH memory chip and stores an embedded operating system, a power model, an oil-gas ratio model, a channel and water regime model; the operation module adopts an embedded microprocessor; the memory module adopts a built-in RAM memory card.
The utility model discloses in, the timing unit reads operating mode data from ship engine ECU through interface module, including real-time engine speed, engine speed threshold value, real-time navigational speed, length of operation, temperature, real-time oil consumption, accumulative total oil consumption, real-time gas consumption, accumulative total gas consumption etc. obtain channel position information from big dipper and GPS module simultaneously; the power adjusting module establishes an initial power model according to the original engine rotating speed threshold and the channel position information. Sequentially adjusting the threshold value of the rotating speed of the engine in the initial power model, calculating the oil inlet amount and the air inlet amount through the operation module aiming at different threshold values, transmitting the oil inlet amount to the accelerator control module, and generating an accelerator control instruction in the accelerator control module; the air input is transmitted to a natural gas control module, and a natural gas control instruction is generated in the natural gas control module; the two instructions generate corresponding oil inlet quantity signals and air inlet quantity signals in an electric pulse signal generator; two signals are transmitted to the ECU from the interface module to control the engine to change the oil inlet amount and the air inlet amount, and meanwhile, the working condition data of the engine are continuously read. The threshold value of the engine speed and the corresponding oil inlet amount and air inlet amount are continuously changed until the engine speed reaches a relative extreme value, namely, under the state, the engine speed can not be increased no matter oil or gas is added. And at the moment, the extreme value is used as a new threshold value of the engine rotating speed, the threshold value is replaced by the threshold value of the initial power model, the new power model is stored in the storage module, and meanwhile, the ECU is written in through the ECU read-write module, so that the power adjustment is completed.
The utility model discloses in, hybrid optimization begins after the power timing is accomplished. The hybrid energy optimization module reads the power model from the storage module and establishes an initial oil-gas ratio model within the range of the engine speed threshold. Under the condition of maintaining the same engine speed, different oil-gas ratios are calculated, the electric pulse signal generating unit is sequentially controlled according to the different oil-gas ratios to generate electric pulse signals of oil inlet amount and air inlet amount, and the oil inlet amount and the air inlet amount of the engine are changed through the throttle control module, the natural gas control module and the interface module. In order to reduce fuel consumption, the lower the fuel-air ratio, the better the same engine speed. And after the lowest oil-gas ratio is measured, correlating the lowest oil-gas ratio with the current engine rotating speed, water regime data, channel data and ship navigation data, and updating an oil-gas ratio model. And when the rotating speed of each level of the engine and the corresponding lowest oil-gas ratio are tested, a final oil-gas ratio model is formed and stored in the storage module, so that the hybrid energy optimization and adjustment are completed.
The touch liquid crystal display module displays data of the adjusting process in real time, and simultaneously displays a virtual keyboard, so that the adjusting data can be manually input, and the adjusting process can be interfered. In this embodiment, the resolution of the touch liquid crystal screen is 1024 × 600, the RGB interface is parallel to 24 bits, the touch type is capacitive touch, and the number of touch points is 5 points.
The engine historical working condition data under the same channel and the same water regime can be utilized to improve the adjustment efficiency and reduce the adjustment time.
The Beidou and GPS module is responsible for positioning channel information, and when channels are switched, due to different water conditions, the Beidou and GPS module automatically adjusts and corrects the new channels again.
Use the utility model discloses in the time, will the utility model discloses install by the engine ECU of LNG dual-fuel boats and ships, with ECU's interface with the utility model discloses an interface module is connected. The boats and ships start when navigating in the channel the utility model discloses, the timing will be according to new power model and the operation of optimal oil-gas ratio model control engine after finishing.
The utility model discloses convenient to use can carry out the timing at any time to different channels, different water conditions, different seasons, makes the engine be in best power running state and energy ratio optimal state all the time.
Claims (4)
- The LNG dual-fuel ship hybrid energy optimization and power intelligent adjusting device mainly comprises an embedded main control main board, a power supply module, an adjusting module, a Beidou and GPS module, an electric pulse signal generator unit, an interface module and a touch liquid crystal display module; the embedded main control main board is respectively connected with the power supply module, the adjusting module, the Beidou and GPS module, the electric pulse signal generator unit, the interface module and the touch liquid crystal display module; the power supply module is connected with the touch liquid crystal display module; the electric pulse signal generator unit is connected with the interface module; the method is characterized in that:the main control mainboard is solidified and integrated with a storage module, an operation module and a memory module;the electric pulse signal generator unit comprises an accelerator control module and a natural gas control module;the adjusting module comprises an ECU reading and writing module, a hybrid energy optimization module and a power adjusting module.
- 2. The LNG dual-fuel ship hybrid energy optimization and power intelligent calibration device as claimed in claim 1, wherein:the interface module adopts a 232+485 dual-mode chip, integrates RS-485 and RS-232 interfaces, has a baud rate of 300-921600bps, has automatic control data transmission capability, is used for being in butt joint with an ECU of a ship engine, can read data of the ECU, and sends and writes data to the ECU;the Beidou and GPS module supports Beidou 1 and Beidou 2, the single-point positioning precision reaches 2.0m, the direction finding precision reaches 0.2 degrees, the speed measuring precision reaches 0.1m/s, and the Beidou and GPS module is responsible for acquiring the position information of a navigation channel and the time service of a system in real time;the touch liquid crystal display module adopts a 7-inch IIC touch liquid crystal display screen, is responsible for displaying the process data and the result data of adjustment and optimization, provides a virtual keyboard, and can manually input oil supply numerical values and air supply numerical values.
- 3. The LNG dual-fuel ship hybrid energy optimization and power intelligent calibration device as claimed in claim 1, wherein:the accelerator control module is responsible for receiving oil inlet data sent by the adjusting module, generating an oil inlet control instruction and sending the oil inlet control instruction to the electric pulse signal generator;the natural gas control module is responsible for receiving air inflow data sent by the adjusting module, generating an air inflow control instruction and sending the air inflow control instruction to the electric pulse signal generator;the electric pulse signal generator forms an electric pulse signal according to the instruction, and the electric pulse signal is sent to the ECU through the interface module, so that the control of the oil inlet amount and the air inlet amount is realized.
- 4. The LNG dual-fuel ship hybrid energy optimization and power intelligent calibration device as claimed in claim 1, wherein:the storage module adopts a 32G FLASH storage chip and stores an embedded operating system, a power model, an oil-gas ratio model, a channel and a water regime model;the operation module adopts an embedded microprocessor;the memory module adopts a built-in RAM memory card.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109616A (en) * | 2021-11-05 | 2022-03-01 | 江西洪都航空工业集团有限责任公司 | Engine high-altitude starting oil supply adjusting method, device and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109616A (en) * | 2021-11-05 | 2022-03-01 | 江西洪都航空工业集团有限责任公司 | Engine high-altitude starting oil supply adjusting method, device and system |
| CN114109616B (en) * | 2021-11-05 | 2023-09-19 | 江西洪都航空工业集团有限责任公司 | High-altitude starting oil supply adjusting method, device and system for engine |
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