A new fuel vapor generation control system

Abstract

The application discloses a novel fuel vapor generation control system, which is provided with a liquid level controller and a K1 relay connected at the back of a main control switch; the K1 relay is used for detecting the liquid level of a water storage tank to prevent dry burning; the back of the K1 relay is provided with a pressure control switch connected with a K2 relay at the back; the K2 relay controls a water pump to realize accurate control of a liquid storage device; the back of the K2 relay is provided with a water flow switch, the back of the water flow switch is provided with a K6 relay which is turned on under liquid flow, which guarantees the safe operation of the K3 relay connected at the back, the K3 relay is connected in parallel with a K4 relay, and the K4 relay guarantees the ignition of an igniter under the determined air supply state; the main line controlled by the K6 relay is provided with a wind pressure switch connected in series with a K5 relay, when the wind pressure is stable, the K5 relay is turned on to promote the work of the time relay at the back, the time relay is connected in parallel with a temperature control switch, and the two are synchronous to control the oil supply of an oil pump relay.

Description

Technical Field

[0001] This invention relates to the field of fuel oil vapor generator technology, and more specifically to a novel fuel oil vapor generation control system. Background Technology

[0002] As is well known, in the field of steam supply equipment technology, most of the existing widely used steam generators are fuel-type generators. These generators use fuel oil as the heating raw material and achieve steam supply by vaporizing the liquid through combustion.

[0003] Currently, the technical drawbacks of fuel generators used in this field mainly lie in system control, which are as follows: 1. Existing control systems only have a dry-burning function and lack a liquid supply pressure limiting function. When the liquid supply pressure is too high, there is a risk of the liquid tank bursting. 2. For cost reasons, a single-cylinder pump is generally used for liquid supply, but pulse-type liquid supply reduces the sensitivity of the pressure sensor, affecting control. 3. There are logical errors in the connection between ignition and fuel / air supply, which can easily lead to deflagration or failure to ignite. 4. After each combustion cycle, residual fuel remains in the fuel supply system, posing a risk of deflagration during secondary ignition. 5. The power supply method is singular, and simultaneous AC / DC power supply cannot be achieved. 6. The fuel supply quantity is singular, and precise control of fuel delivery cannot be achieved by adjusting different fuel supply quantities.

[0004] Based on the above-mentioned shortcomings of existing products and technologies, the applicant urgently needs to improve the structure of the control system of the currently used fuel steam generator so that it can eliminate the shortcomings of the existing technology and provide a stable, safe, accurate and efficient steam supply. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention provides a novel fuel vapor generation control system. By improving existing control systems, it establishes a stable and efficient logical supply relationship between fuel supply, liquid supply, and ignition, thus providing a safe and stable control system.

[0006] To achieve the above technical objectives, the present invention adopts the following solution: a novel fuel oil vapor generation control system, which includes a main control switch connected in the control system, with a power indicator on the rear side of the main control switch; a liquid level controller is located on the rear side of the main control switch, and a K1 relay is connected in series on the control main line; an alarm device is also located on the rear side of the K1 relay; a pressure control switch is located on the rear side of the K1 relay, and the pressure control switch is connected to a K2 relay on the rear side, which controls the water pump and the power supply connection; a flow switch is located on the rear side of the K2 relay. A K6 relay is installed on the rear side, and a K3 relay is connected to the rear side of the K6 relay. The K3 relay is used to control the fan. The K3 relay is connected in parallel with the K4 relay, and the K4 relay is connected to the igniter to control the ignition. A wind pressure switch is also installed on the main line after the control of the K6 relay. A K5 relay is connected in series on the rear side of the wind pressure switch, and a time relay is connected in series on the rear side of the K5 relay. A temperature control switch is also connected in parallel with the time relay. The time relay and the temperature control switch control the oil pump relay synchronously. The rear side of the oil pump relay is connected to the oil pump power supply terminal.

[0007] A secondary pressure control switch is provided on the rear side of the pressure control switch. The secondary pressure control switch is connected to the K2 relay and is used to prevent the liquid supply tank from bursting due to continuous liquid supply caused by the failure of a single pressure control switch.

[0008] A time-delay relay is provided on the parallel line behind the pressure control switch or the secondary pressure control switch, and the time-delay relay is connected to the fan control terminal.

[0009] The K6 relay located on the rear side of the flow switch is connected to the integrating circuit, which stabilizes the pulse signal of the flow switch.

[0010] A temperature control mechanical switch is provided on the front side of the time relay and temperature control switch, which is used to disconnect at high temperature after the temperature is set to protect the furnace body.

[0011] When the high-voltage circuit of this system is connected, a DC power supply module and a mains power interface are connected to the power supply line via a switch. A short-circuit protector is connected to the power supply line, and a time delay relay and a K3 relay are connected in parallel behind the short-circuit protector. The time delay relay and the K3 relay are also connected to the fan. A K4 relay is also connected to the power supply line behind the short-circuit protector, and the rear of the K4 relay is connected to the igniter. A time relay and a temperature control switch are also connected to the power supply line behind the short-circuit protector. The time relay and the temperature control switch are set in parallel, and the parallel line is connected to the oil pump power supply terminal via an oil pump relay.

[0012] A speed control switch is connected in parallel to the oil pump relay.

[0013] The beneficial effects of this invention are as follows: Through the above-mentioned configuration, a liquid level controller is installed behind the main control switch. The liquid level controller is connected to a K1 relay, which detects the liquid level in the water tank to prevent dry burning. A pressure control switch is installed behind the K1 relay, connected to a K2 relay. The K2 relay controls the water pump to precisely control the amount of liquid in the storage device, preventing safety hazards caused by excessive liquid pressure. A flow switch is installed behind the K2 relay, and a K6 relay is installed behind the flow switch. The K6 relay opens under liquid flow, ensuring the safe operation of the K3 relay connected behind it. The K3 relay is used to control the fan's air supply. The K3 relay is connected in parallel with the K4 relay. Under the determined air supply state, the K4 relay ensures the igniter can ignite. A wind pressure switch is also installed on the main line controlled by the K6 relay. A K5 relay is connected in series behind the wind pressure switch. When the wind pressure is stable, the K5 relay is activated, promoting the operation of the time relay behind it. A temperature control switch is also connected in parallel with the time relay. Both synchronously control the oil pump relay's oil supply. This system also includes an integral circuit that works in conjunction with the K6 relay to reduce the impact of single-cylinder pump pulse water supply on the control system. The system also includes a fan delay system that can drain the tail oil after combustion to prevent secondary combustion and deflagration. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the low-voltage control system of the present invention;

[0015] Figure 2 This is a schematic diagram of the power supply structure of the present invention;

[0016] In the attached image:

[0017] 1. Main control switch; 2. Power indicator light; 3. Liquid level controller; 4. Temperature control external power supply; 5. Water shortage indicator light; 6. K1 relay; 7. Water shortage alarm; 8. Pressure control switch; 9. Water pump control unit; 91. K2 relay; 92. Water pump control terminal; 10. Overpressure indicator light; 11. Secondary pressure control switch; 13. Double switch; 131. Conductive switch; 132. Time delay switch; 14. Flow switch; 15. K6 relay. 6. No water alarm light; 17. Time delay relay; 18. Fan; 19. K3 relay; 20. K4 relay; 201. Ignition device; 21. K5 relay; 22. Air pressure switch; 23. Time relay; 24. Temperature control mechanical switch; 25. Heating indicator light; 26. Air pressure indicator light; 27. Temperature control switch; 28. Inverter; 29. ​​Mains power interface; 30. Transformer module; 31. Short circuit protector; 32. Speed ​​control switch; 33. Oil pump. Detailed Implementation

[0018] As attached Figure 1, 2 As shown, a novel fuel oil vapor generation control system includes a main control switch 1 connected to the main line of the control system. A power indicator light 2 is located behind the main control switch 1 to display the operating status. A liquid level controller 3 is located behind the main control switch 1, and a K1 relay 6 is connected in series on the control main line. When the system detects water in the water storage device, the K1 relay 6 controls the entire main line to conduct, supplying power to subsequent control components; otherwise, the entire system is disconnected, fundamentally preventing dry burning. An alarm device is also located behind the K1 relay 6, including a water shortage indicator light 5 or a water shortage alarm 7.

[0019] A pressure control switch 8 is provided on the rear side of the K1 relay 6. The pressure control switch 8 is connected to the water pump control unit 9 on the rear side. The water pump control unit 9 is provided with a K2 relay 91 and a water pump control terminal 92. When the pressure control switch 8 is turned on under a certain water pressure (water shortage), the K2 relay 91 is energized and turns on, which controls the water pump operation of the water pump control terminal 92.

[0020] A flow switch 14 is located behind the K2 relay 91, and a K6 relay 15 is located behind the flow switch 14. Furthermore, the flow switch 14 and an integrating circuit are connected in parallel with the K6 relay 15. Because the water supply system of this type of device uses a single-cylinder pump, it supplies water in a pulsed water pressure manner. During pulsed water supply, the K6 relay 15 operates unstablely (intermittently on and off). The integrating circuit is used to improve the operational stability of the K6 relay 15. When the K6 relay 15 is not conducting, a water shortage alarm light is located behind it. At this time, the subsequent fan, ignition, and oil pump are not powered.

[0021] The rear side of the K6 relay 15 is connected to the K3 relay 19. The K3 relay 19 is used to control the fan 18. The K3 relay 19 is connected in parallel with the K4 relay 20. The K4 relay 20 is connected to the igniter 201 to achieve ignition control. The control principle is as follows: when there is water flow in the equipment, the K6 relay 15 is turned on, which in turn turns the K3 relay 19 on. The K3 relay 19 controls the fan 18 to run and supply air to the equipment. At the same time as supplying air, the K4 relay 20 controls the igniter 201 to ignite.

[0022] A wind pressure switch 22 is also installed on the main line controlled by K6 relay 15. K5 relay 21 is connected in series on the back of wind pressure switch 22. When the fan is running, wind pressure switch 22 is turned on and K5 relay 21 is activated. A wind pressure indicator light 26 is connected in parallel with K5 relay 21. When K5 relay 21 is turned on, time relay 23 on its back is turned on. A temperature control switch 27 is also connected in parallel with time relay 23. Time relay 23 and temperature control switch 27 synchronously control oil pump relay 24. The back of oil pump relay 24 is connected to the oil pump power supply terminal. The principle of synchronous operation of the time relay 23 and the temperature control switch 27 described above is as follows: When the K5 relay 21 is turned on, the time relay 23 is turned on and continues for 7-10 seconds. During this period, the igniter 201 continuously ignites and is continuously sensed by the temperature control switch 27. When the temperature control switch 27 receives the temperature within 7-10 seconds, the oil pump relay 24 is continuously turned on to control the oil pump to supply oil. When the temperature control switch 27 does not receive the temperature within 7-10 seconds, the time relay 23 and the temperature control switch 27 are simultaneously de-energized, and the oil pump relay 24 is turned off to stop the oil supply.

[0023] Based on the above control system, a secondary pressure control switch 11 is further provided on the rear side of the pressure control switch 8. The secondary pressure control switch 11 is connected to the K2 relay 91 and is used to prevent the liquid supply tank from bursting due to continuous liquid supply caused by the failure of a single pressure control switch 8. An overpressure indicator light 10 is also provided on the rear side of the pressure control switch 8 and the secondary pressure control switch 11 to provide an external warning when overpressure liquid supply occurs.

[0024] For further safety considerations, a time-delay relay 17 is installed on the parallel circuit behind the secondary pressure control switch 11. This time-delay relay 17 is connected to the control terminal on the fan 8. Figure 1 As shown, when the secondary pressure control switch 11 senses excessive pressure, it disconnects the power supply to the rear side and conducts towards the overpressure indicator light 10. The time delay relay 17 is connected in parallel with the overpressure indicator light 10. At this time, the air supply, oil supply, and ignition are all shut off. The time delay relay 17 controls the fan 8 to continuously supply air for a period of time. The purpose is to discharge the tail oil in the combustion system and prevent deflagration during the next ignition.

[0025] Furthermore, a temperature control mechanical switch is provided on the front side of the time relay 24 and the temperature control switch 27, which is used to disconnect when the temperature is set and high temperature is encountered to protect the furnace body.

[0026] The high-voltage connections of this system are described in the following embodiments: Figure 2In this system, when the high-voltage circuit is connected, the DC power supply module on the inverter 28 and the mains interface 29 are connected to the power supply line via a switch. After the short-circuit protector 31 is connected to the power supply line, a time delay relay 17 and a K3 relay 19 are connected in parallel to the rear side of the short-circuit protector 31. The time delay relay 17 and the K3 relay 19 are also connected to the fan 18. A K4 relay 20 is also connected to the power supply line behind the short-circuit protector 31. The rear side of the K4 relay 20 is connected to the igniter 201 for ignition control. A time relay 23 and a temperature control switch 27 are also connected to the power supply line behind the short-circuit protector 31. The time relay 23 and the temperature control switch 27 are set in parallel. The parallel line is connected to the oil pump power supply terminal via an oil pump relay 24. Furthermore, a speed control switch 25 is set in parallel to the oil pump relay 24. When the oil pump relay 24 is momentarily turned on, the oil pump can be precisely adjusted in multiple speeds via the speed control switch 25.

[0027] In summary, this invention, through the above-described configuration, includes a liquid level controller 3 located behind the main control switch. The liquid level controller 3 is connected to a K1 relay 6, which detects the liquid level in the storage tank to prevent dry burning. Behind the K1 relay 6 is a pressure control switch 8, connected to a K2 relay 91. The K2 relay 91 controls the water pump's connection to the power supply, thereby achieving precise control of the liquid level in the storage device and preventing safety hazards caused by excessive liquid pressure. Behind the K2 relay 91 is a flow switch 14, and behind the flow switch 14 is a K6 relay 15. Electrical appliance 15 is activated under liquid flow conditions, ensuring the safe operation of the downstream K3 relay 19. K3 relay 19 controls the fan's airflow. K3 relay 19 is connected in parallel with K4 relay 20. Under the confirmed airflow condition, K4 relay 20 ensures the igniter ignites. A wind pressure switch 22 is also installed on the main line controlled by K6 relay 15. K5 relay 21 is connected in series downstream of wind pressure switch 22. When the wind pressure is stable, K5 relay 21 conducts, activating the downstream time relay 23. A temperature control switch 27 is connected in parallel with time relay 23. Both synchronously control the oil pump relay's oil supply. This system also includes an integral circuit used in conjunction with K6 relay to reduce the impact of single-cylinder pump pulse water supply on the control system. The system also includes a fan delay system, which can completely drain the exhaust oil after combustion, preventing secondary combustion and deflagration.

[0028] This system has a reasonable connection between its components and can achieve precise control of water pumps, fuel, and blowers under safe and stable conditions, making it an ideal fuel oil vapor generation control system.

Claims

1. A novel fuel oil vapor generation control system, characterized in that: A liquid level controller is installed behind the main control switch, and a K1 relay is connected in series on the main control line. A pressure control switch is installed behind the K1 relay, and the pressure control switch is connected to the K2 relay behind it. The K2 relay controls the water pump and the power supply connection. A water flow switch is installed behind the K2 relay, and a K6 relay is installed behind the water flow switch. A K3 relay is connected behind the K6 relay, and the K3 relay is used to control the fan. The K3 relay and the K4 relay are connected in parallel, and the K4 relay is connected to the igniter to control the ignition. A wind pressure switch is also installed on the main line controlled by the K6 relay. A K5 relay is connected in series behind the wind pressure switch, and a time relay is connected in series behind the K5 relay. A temperature control switch is also connected in parallel with the time relay. The time relay and the temperature control switch synchronously control the oil pump relay. The oil pump relay is connected to the oil pump power supply terminal. A secondary pressure control switch is provided on the rear side of the pressure control switch, and the secondary pressure control switch is connected to the K2 relay; A time delay relay is provided on the parallel line behind the pressure control switch or the secondary pressure control switch, and the time delay relay is connected to the fan control terminal. The K6 relay located on the rear side of the flow switch is connected to the integrating circuit; When connected to the high-voltage circuit of the new fuel vapor generation control system, a DC power supply module and a mains power interface are connected to the power supply line via a switch. A short-circuit protector is connected to the power supply line, and a time delay relay and a K3 relay are connected in parallel behind the short-circuit protector. The time delay relay and the K3 relay are also connected to the blower. A K4 relay is also connected to the power supply line behind the short-circuit protector, and the rear of the K4 relay is connected to the igniter. A time relay and a temperature control switch are also connected to the power supply line behind the short-circuit protector. The time relay and the temperature control switch are connected in parallel, and the parallel line is connected to the oil pump power supply terminal via an oil pump relay. A speed control switch is connected in parallel to the oil pump relay.

2. The novel fuel oil vapor generation control system as described in claim 1, characterized in that: A temperature control mechanical switch is provided on the front side of the time relay and the temperature control switch.

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