CN109828525B - Ship host starting control system under ultra-high altitude condition - Google Patents

Abstract

The invention discloses a start-up control system for the main engine of a certain boat under ultra-high altitude conditions, which includes an automatic turning device, an automatic control module, a gas release device and a total system console. The automatic control module includes a PLC controller, a power module, and an information sensing system. module, data analysis and processing module, solenoid valve drive module, communication display module and sound and light alarm module. The gas release device includes a high-pressure air bottle gas release device and an oxygen bottle gas release device. The system master console includes a system master control The machine body, multiple control buttons and switches realize the intelligence of the starting system, and can detect the status of the diesel engine before and after starting in real time, effectively improving the starting performance of a certain boat main engine, reducing the failure rate, and extending the service life of the diesel engine.

Description

Ship main engine start control system under ultra-high altitude conditions

Technical field

The invention relates to the technical field of diesel engines, and in particular to a ship main engine starting control system under ultra-high altitude conditions.

Background technique

The oxygen content in the air continues to decrease as the altitude increases. At an altitude of 0 meters, the atmospheric pressure is 101.2KPa, and the oxygen content in the air drops by 0%. The oxygen content in the air is 20.95%, which is 0 oxygen content at altitude. 100%; at an altitude of 4000 meters, the atmospheric pressure is only 61.3KPa, and the oxygen content in the air has dropped by 6.4% compared with that at 0 altitude. The oxygen content in the air is 14.55%, which is only 69.5% of the oxygen content at 0 altitude. At the same time, there is a certain relationship between altitude and air temperature: for every 1,000 meters of altitude increase, the temperature drops by 6.5 degrees. The main engine of the boat works at an ultra-high altitude of above 4,200. Due to the low atmospheric pressure and low oxygen content in the air in high-altitude areas, It is lower than that in plain areas. In addition, the ambient temperature in ultra-high altitude areas is low and the temperature difference is large. The quality of the air entering the diesel engine cylinder is poor, and the compression end pressure and temperature do not reach the required standards, resulting in work in ultra-high altitude areas. The main unit on the boat has difficulty starting. Difficulty starting for a long time will reduce the service life of the diesel engine.

Contents of the invention

The purpose of the present invention is to provide a ship main engine starting control system under ultra-high altitude conditions to solve the problems raised in the above background technology. It realizes the intelligence of the starting system, can detect the status of the diesel engine before and after starting in real time, and effectively improves the ship's efficiency. The starting performance of the main engine of the boat is improved, the failure rate is reduced, and the service life of the diesel engine is extended.

In order to achieve the above object, the present invention provides the following technical solution: a ship main engine start control system under ultra-high altitude conditions, including an automatic cranking device, an automatic control module, a gas release device and a system master console. The automatic cranking device, The gas release device is connected to an automatic control module. The automatic control module includes a PLC controller, a power supply module, an information sensing module, a data analysis and processing module, a solenoid valve driving module, a communication display module and an audible and visual alarm module. The information sensing module The module output end is connected to the data analysis and processing module, the data analysis and processing module output end is connected to the PLC controller, the solenoid valve driving module is connected to the PLC controller output end, the PLC controller, the information sensing module, The data analysis and processing module and the sound and light alarm module are connected to the input end of the communication display module. The information sensing module includes a gas pressure sensor, a gas temperature sensor, an oxygen sensor, a volume flow meter, a gas cylinder digital display pressure gauge, and a crankshaft speed sensor. Opacimeter, exhaust gas temperature sensor, oil pressure sensor, cooling water temperature sensor, the data analysis and processing module is mainly composed of an ECU unit, the communication display module is an LDE display screen, and the sound and light alarm module includes a voice Indicating device and LED light indicating device. The voice indicating device includes a voice drive circuit and a speaker. The LED light indicating device is composed of an LED red light and an LED green light. The gas release device includes a high-pressure air bottle gas release device and an oxygen bottle. Gas release device, the oxygen cylinder gas release device is provided with a first pipeline and a second pipeline, and the first pipeline and the second pipeline are respectively provided with a first solenoid valve and a second solenoid valve, The high-pressure air bottle gas release device is provided with a third pipeline, and the third pipeline is provided with a third solenoid valve. The first solenoid valve includes a shell, a valve seat, a valve core, a coil, a spring and a pull rod. , the coil, the valve core and the spring are installed and connected in the housing, the coil is installed and connected around the valve core and the spring, the valve core is installed and connected at the lower end of the spring, and one end of the pull rod is fixed to the top of the valve core connection, the other end of the pull rod is vertically fixedly connected to a pressure rod, one side of the pressure rod is fixedly connected to a support rod, a first fixed column, the bottom surface of the support rod is vertically fixedly connected to the housing, and the A second fixing post is fixed on the housing. The second fixing post is symmetrical to the first fixing post. The distance between the first fixing post and the second fixing post is 0.5-1CM, so The first fixed column and the second fixed column are covered with vertical springs, the housing is provided with a fixed tube, the vertical spring is located in the fixed tube, and the height of the fixed tube is greater than that of the second fixed tube. The height of the column, when the pressure rod is pressed to the lowest level, the valve core is in a fully open state, the spring is in a compressed state, the valve seat is installed and connected at the lower end of the housing, and an air inlet is provided on the left side of the valve seat. port, and an air outlet is provided on the right side of the valve seat. The system main console includes a system main console body, a plurality of control buttons and switches, and the multiple control buttons and switches are all on the system main console body. Install the connection.

Furthermore, the automatic turning device is an electric turning device using a 24V battery as a power source. The automatic turning device is provided with a lap counter that can measure the number of turns of the turning gear.

Further, the PLC controller is a PLC programmable controller.

Further, the power module uses a 24V battery to power the entire system after voltage regulation and conversion.

Furthermore, the bottom end of the valve core is provided with a sealing ring, and the sealing ring is made of rubber.

Furthermore, the first solenoid valve, the second solenoid valve and the third solenoid valve all have the same structural shape.

beneficial effects

The invention's main engine starting control system for ships under ultra-high altitude conditions includes an automatic cranking device, an automatic control module, a gas release device and a system master console. The system uses an information sensing module and a data analysis and processing module to sense ultra-high altitude marine diesel engines. Information such as the oxygen content in the air intake ducts before and after the supercharger compressor, the gas pressure and temperature in the air intake duct after the compressor, the exhaust smoke in the exhaust pipe, the status of high-pressure air bottles and oxygen bottles, etc., can be used to calculate high The amount of oxygen required when starting a marine diesel engine at altitude is controlled by the PLC controller to control the blowing gas of the high-pressure air bottle and the starting gas of the oxygen bottle. It is mainly used to improve the starting performance of the diesel engine on the ship under ultra-high altitude conditions and achieve The rapid starting of the diesel engine under ultra-high altitude conditions especially ensures the success rate of starting the diesel engine in emergency situations. At the same time, it can monitor the starting status of the diesel engine in real time, and provide real-time audible and visual alarm information when a fault occurs, reminding the operator to stop the starting operation in time to prevent major accidents.

Description of the drawings

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic structural diagram of the gas release device.

Figure 3 is a schematic structural diagram of the first solenoid valve.

Specific embodiments

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

The ship main engine start control system under ultra-high altitude conditions includes an automatic cranking device 1, an automatic control module 2, a gas release device 3 and a system main console 4. The automatic cranking device 1, gas release device 3 and automatic control Module 2 is connected, and the automatic turning device 1 is an electric turning device using a 24V battery as a power source. The automatic turning device 1 is provided with a lap counter 5, which can measure the number of turns of the turning gear, so The automatic control module 2 includes a PLC controller 6, a power module 7, an information sensing module 8, a data analysis and processing module 9, a solenoid valve driving module 10, a communication display module 11 and an audible and visual alarm module 12. The information sensing module 8 outputs The terminal is connected to the data analysis and processing module 9, the output terminal of the data analysis and processing module 9 is connected to the PLC controller 6, the solenoid valve driving module 10 is connected to the output terminal of the PLC controller 6, the PLC controller 6, The information sensing module 8, the data analysis and processing module 9, and the sound and light alarm module 12 are all connected to the input end of the communication display module 11. The PLC controller 6 is a PLC programmable controller, and the power supply module 7 uses a 24V battery to undergo voltage regulation. After conversion, it supplies power to the entire system. The information sensing module 8 includes a gas pressure sensor 13, a gas temperature sensor 14, an oxygen sensor 15, a volume flow meter 16, a gas cylinder digital pressure gauge 17, a crankshaft speed sensor 18, and opaque smoke. Meter 19, exhaust temperature sensor 20, oil pressure sensor 21, cooling water temperature sensor 22. The gas pressure sensor 13 is used to measure the gas pressure value in the intake duct after the diesel engine is started and after supercharging. The gas temperature sensor 14 is used to measure the diesel engine. The temperature value of the gas in the intake duct after supercharging during startup. The oxygen sensor 15 is used to measure the oxygen content in the air in the intake ducts before and after the supercharger compressor when the diesel engine is started. The volume flow meter 16 is used to measure the oxygen content entering the intake duct. The volume flow rate of air and oxygen, the cylinder digital pressure gauge 17 is used to measure the gas pressure state in the high-pressure air bottle and the oxygen bottle, the crankshaft speed sensor 18 is used to measure the speed of the diesel engine crankshaft, and the opacity meter 19 is used To measure the exhaust smoke in the diesel engine exhaust pipe, the exhaust temperature sensor 20, the oil pressure sensor 21, and the cooling water temperature sensor 22 respectively measure the exhaust temperature, oil pressure, and cooling water temperature after the diesel engine is started. The data is analyzed and processed. Module 9 is mainly composed of an ECU unit, which is used to analyze and process gas pressure sensor 13, gas temperature sensor 14, oxygen sensor 15, volume flow meter 16, gas cylinder digital pressure gauge 17, crankshaft speed sensor 18, and opacity meter. 19. Various parameter information measured by the exhaust gas temperature sensor 20, the oil pressure sensor 21, and the cooling water temperature sensor 22. The communication display module 11 is an LED display screen, and the sound and light alarm module 12 includes a voice indication device and LED lighting. Indicating device, the voice indicating device includes a voice drive circuit and a speaker for issuing sound instructions or alarm signals. The LED light indicating device is composed of an LED red light and an LED green light. The gas release device 3 includes high-pressure air bottle gas. Release device 23 and oxygen cylinder gas release device 24. The oxygen cylinder gas release device 24 is provided with a first pipeline 25 and a second pipeline 26. The first pipeline 25 and the second pipeline 26 are A first solenoid valve 27 and a second solenoid valve 28 are respectively provided. The high-pressure air bottle gas release device 23 is provided with a third pipeline 29, and a third solenoid valve 30 is provided on the third pipeline. A solenoid valve 27 includes a housing 31, a valve seat 32, a valve core 33, a coil 34, a spring 35 and a pull rod 42. The coil 34, the valve core 33 and the spring 35 are installed and connected in the housing 31. The coil 34 is in The valve core 33 is installed and connected around the spring 35. The valve core 33 is installed and connected at the lower end of the spring 35. One end of the pull rod 42 is fixedly connected to the top of the valve core 33. The other end of the pull rod 42 is vertically fixedly connected. The pressure rod 43 has a support rod 44 and a first fixed column 45 fixedly connected to one side of the pressure rod 43. The bottom surface of the support rod 44 is vertically fixedly connected to the housing 31, and a fixed installation is provided on the housing 31. There is a second fixed post 46, which is symmetrical to the first fixed post 45. The distance between the first fixed post 45 and the second fixed post 46 is 0.5-1CM, so The first fixed column 45 and the second fixed column 46 are covered with vertical springs 47. The housing 31 is provided with a fixed tube 48. The vertical spring 47 is located in the fixed tube 48. The fixed tube The height of 48 is greater than the height of the second fixed column 46. When the pressure rod 43 is pressed to the lowest position, the valve core 33 is in a fully open state, the spring 35 is in a compressed state, and the valve seat 32 is in the housing. 31 is installed and connected at the lower end, the left side of the valve seat 32 is provided with an air inlet 36, the right side of the valve seat 32 is provided with an air outlet 37, the bottom end of the valve core 33 is provided with a sealing ring 38, and the sealing ring 38 is Made of rubber, the first solenoid valve 27 , the second solenoid valve 28 and the third solenoid valve 30 have the same structure and shape. The system main console 4 includes a system main console body 39 , a plurality of control buttons 40 and switches 41 , the plurality of control buttons 40 and the switches 41 are all installed and connected on the system main console body 39 .

Working principle: When the control system is started, the system self-test is normal, and the information sensing module starts. Through the gas pressure sensor, gas temperature sensor, oxygen sensor, volume flow meter, gas cylinder digital pressure gauge, crankshaft speed sensor, and opaque smoke The meter, exhaust temperature sensor, oil pressure sensor, and cooling water temperature sensor monitor and sense the oxygen content in the air intake ducts before and after the compressor of the ultra-high-altitude marine diesel engine supercharger, the gas pressure and temperature in the air intake duct after the compressor, and The exhaust smoke in the air pipeline, the status of high-pressure air bottles and oxygen bottles, the starting status of the diesel engine, calculate the amount of oxygen required when starting a high-altitude marine diesel engine, start the solenoid valve drive module through the PLC controller, and the solenoid valve drive module is opened by The first solenoid valve, the second solenoid valve and the third solenoid valve control the blowing gas of the high-pressure air bottle and the starting gas of the oxygen bottle to improve the starting performance of the diesel engine.

The sealing ring in the above embodiment is made of rubber material. The sealing ring is made of the following formula according to the following parts by weight: 90 parts of rubber base material, 8 parts of flame retardant, 3 parts of anti-aging agent, and 1 part of activator. The combustion accelerant is made by mixing and stirring methanol, ethanol, hydrazine and octane. The weight ratio of the methanol, ethanol, hydrazine and octane is 5:1:0.7:0.3. The stirring time is 8 minutes and the stirring rate is 85r. /min, the anti-aging agent is polypropylene resin, and the activator is mixed and stirred by ethylenediamine phosphate, ammonium sulfate, ammonium chloride, and ferrous sulfate. The weight ratio of ammonium to ferrous sulfate is 1.12:0.5:1.25:1, the stirring time is 35 minutes, and the stirring speed is 90r/min. The chemical properties of the sealing ring made of the above raw materials are stable.

The gas pressure sensor described in the above embodiment was purchased from Jiangsu Hongyi Automation Instrument Co., Ltd., the gas temperature sensor and oxygen sensor were purchased from Shenzhen Xinshilian Technology Co., Ltd., and the volumetric flow meter was purchased from Nanjing Saiyatefu Precision Instrument Co., Ltd., the gas cylinder digital pressure gauge was purchased from Ningbo Beilun Pressure Reducer Factory, the crankshaft speed sensor was purchased from Wuxi Xingzhou Instrument Co., Ltd., and the opacity meter was purchased from Suzhou Qile Electronic Technology Co., Ltd., the exhaust temperature sensor was purchased from Shanghai Chenxin Instrument Co., Ltd., and the oil pressure sensor and cooling water temperature sensor were purchased from Jiangsu Luneng Electronic Technology Co., Ltd.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (6)

1. The system is characterized by comprising an automatic turning device, an automatic control module, a gas release device and a system master console, wherein the automatic turning device and the gas release device are connected with the automatic control module, the automatic control module comprises a PLC controller, a power supply module, an information sensing module, a data analysis processing module, an electromagnetic valve driving module, a communication display module and an audible and visual alarm module, the output end of the information sensing module is connected with the data analysis processing module, the output end of the data analysis processing module is connected with the PLC controller, the electromagnetic valve driving module is connected with the output end of the PLC controller, the information sensing module, the data analysis processing module and the audible and visual alarm module are all connected with the input end of the communication display module, the information sensing module comprises a gas pressure sensor, a gas temperature sensor, an oxygen sensor, a volume flowmeter, a gas cylinder digital display pressure meter, a crankshaft speed sensor, an opaque smoke meter, an exhaust temperature sensor, a mechanical oil pressure sensor and a gas cylinder cooling gas cylinder sensor, the output end of the electronic control unit is mainly composed of an ECU, the data analysis processing module comprises an ECU, the communication display module is mainly composed of an oxygen display module, the communication display module is composed of an oxygen display, the LED (light-emitting diode) is a voice light indicator, a voice LED (light emitting diode) is arranged on a second voice light indicator, a first voice light indicator and a second voice light indicator, a second LED, a light indicator and a light emitting device are respectively arranged on the LED, a voice light indicator, a second voice light indicator, a light emitting device and a first LED, a voice indicator, a second light and a voice indicator, a light and a light indicator, a light and a second light and a voice display, respectively, and a voice display, and a voice and a light, and a second LED, and a light device, the utility model provides a high-pressure air bottle gas release is last to be equipped with the third pipeline, be equipped with the third solenoid valve on the third pipeline, first solenoid valve includes casing, disk seat, case, coil, spring and pull rod, coil, case and spring are at casing internal mounting connection, the coil is at case and spring erection joint all around, the case is at spring lower extreme erection joint, the one end of pull rod with the top fixed connection of case, the other end vertical fixation of pull rod has the depression bar, one side fixed connection of depression bar has branch, first fixed column, the bottom surface of branch with casing vertical fixation connects, fixed second fixed column that is equipped with on the casing, the second fixed column with first fixed column is symmetrical, first fixed column with the distance between the second fixed column is 0.5-1CM, first fixed column with the cover has vertical spring on the second fixed column, be equipped with the fixed pipe on the casing, vertical spring is located in the fixed pipe, the height of fixed pipe is greater than the second side the vertical fixation is equipped with the depression bar, the air inlet control system is equipped with the valve seat is equipped with the air inlet, the air inlet is connected with the air inlet, the total control system is in the side of the valve seat is completely, the valve seat is connected with the valve seat, the air inlet.

2. The starting control system of a boat main engine under the ultra-high altitude condition according to claim 1, wherein the automatic jigger is an electric jigger using a 24V storage battery as a power source, and a circle counter is arranged on the automatic jigger and can measure the rotation circle number of a jigger gear.

3. The system of claim 1, wherein the PLC controller is a PLC programmable controller.

4. The starting control system of a boat main engine under the ultra-high altitude condition according to claim 1, wherein the power module utilizes a 24V storage battery to supply power to the whole system after voltage regulation conversion.

5. The starting control system of the boat main engine under the ultra-high altitude condition according to claim 1, wherein a sealing ring is arranged at the bottom end of the valve core, and the sealing ring is made of rubber.

6. The starting control system of a boat host machine under ultra-high altitude conditions according to claim 1, wherein the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are all identical in structural shape.