A simmering stove system and control method

Abstract

The application discloses a simmering stove system and a control method, which comprises a simmering stove body, a control system, an oil inlet pump and an electronic pulse igniter. The simmering stove body comprises a stove head, a steam inlet cavity located at the bottom of the stove head and a vaporizer steam delivery assembly corresponding to the steam inlet cavity. The method comprises the following steps: S1, a preheating stage: controlling the starting of a heating element and allowing the heating element to heat the inside of a vaporization component to a temperature A1 range; S2, an ignition stage: the electronic pulse igniter is continuously ignited for the first time for K1 seconds, and if the flameout protection probe detects a combustion state, the ignition operation is stopped and step S3 is entered; S3, a combustion operation stage: the electronic pulse igniter, the oil inlet pump, a gas delivery on-off electromagnetic valve and the heating element are all in a starting state, and the heating element is controlled to heat the inside of the vaporization component to maintain a temperature A2 range. The application realizes the process automation control of preheating, ignition and operation monitoring, and realizes the application of liquid fuel oil in the simmering stove field.

Description

Technical Field

[0001] This invention relates to the field of combustion stove heads, and more particularly to a low-heat stove system and control method. Background Technology

[0002] Commercial stoves are widely used in schools, military units, restaurants, hotels, and other multi-person cooking environments. They generally use liquefied petroleum gas (LPG) as fuel. Traditional LPG has problems such as low calorific value, high cost, low flash point, flammability, explosiveness, and significant safety hazards. LPG (liquefied natural gas) is a very clean fuel, and its use in both residential and commercial applications is very large, often leading to shortages. Currently, in the commercial stove sector, research is underway on stoves using liquid fuel oil as a fuel source, which could replace LPG and alleviate LPG shortages. Currently, commercial stoves are mainly used in high-powered Chinese cooking stoves and large wok stoves, which are not suitable for low-heat control. Besides high-powered applications, other kitchen appliances such as steamers, braising pots, cooking ovens, clay pot stoves, and heaters require low-heat operation (i.e., low-heat stoves need to be researched and developed). For applications requiring low-heat cooking, such as small household stoves, hot pot stoves, clay pot stoves, stew stoves, and noodle cookers, there is an urgent need to research a combustion system for low-heat stoves that relies on liquid fuel oil, and to develop a corresponding combustion control system for low-heat stoves (including oil circuit valves, vaporization control, ignition action, operation monitoring, etc.). This is currently the research direction and technical challenge for stoves using liquid fuel oil. Summary of the Invention

[0003] The purpose of this invention is to solve the technical problems pointed out in the background art and to provide a low-heat stove system and control method. The control system includes a preheating control module, an ignition control module, and an operation monitoring control module. The preheating control module realizes the preheating control of the vaporization operation of the vaporizer steam delivery component. The ignition control module controls the ignition operation of the gas fuel. The operation monitoring control module realizes the operation monitoring and timely response control during the combustion process, realizing the process-oriented and automated control of preheating, ignition, and operation monitoring, and realizing the application of liquid fuel in the field of low-heat stoves.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A low-heat stove system includes a stove body, a control system, an oil inlet pump, and an electronic pulse igniter. The stove body includes a burner head, a steam inlet chamber located at the bottom of the burner head, and a vaporizer steam delivery assembly corresponding to the steam inlet chamber. The vaporizer steam delivery assembly includes a vaporization component and a gas delivery component connected to the vaporization component. The vaporization component includes, from the outside to the inside, a vaporization shell, a heating element, and an oil inlet pipe. The side wall of the vaporization shell has a steam outlet. The gas delivery component includes a gas delivery cylinder, a movable pin rod with a spring located inside the gas delivery cylinder, and a gas delivery on / off solenoid valve located at the bottom of the gas delivery cylinder that drives the movable pin rod to extend and retract. The gas cylinder has a pipe A on its side that is in sealed communication with the steam outlet, and a jet nozzle at the end of the gas cylinder. The end of the movable ejector rod has an ejector pin that closes the jet nozzle. When the gas supply solenoid valve is de-energized, the movable ejector rod, driven by a spring, closes the jet nozzle with the ejector pin. When the gas supply solenoid valve is energized, it drives the movable ejector rod to compress the spring and open the jet nozzle. The oil inlet pipe is connected to the oil outlet of the oil pump. An ignition needle and an electronic pulse igniter connected to the ignition needle are correspondingly provided around the burner head. The control system is electrically connected to the oil pump, the electronic pulse igniter, the gas supply solenoid valve, and the heating element.

[0006] To better realize the present invention, the present invention also includes a flameout protection probe electrically connected to the control system, the flameout protection probe being arranged around the burner head; the control system is also connected to a control panel.

[0007] Preferably, the control system includes a preheating control module, an ignition control module, and an operation monitoring control module. The vaporizer's steam delivery assembly is equipped with a temperature sensor inserted inside the vaporization component. The preheating control module is connected to both the temperature sensor and the heating element. The control method of the preheating control module is as follows: When the preheating control module is activated, it controls the heating element to heat the interior of the vaporization component to a temperature range A1, where a11≤A1≤a12. The temperature sensor detects the internal temperature of the vaporization component and feeds it back to the preheating control module. The ignition control module is connected to the electronic pulse igniter, the fuel pump, the gas delivery solenoid valve, and the heating element. The control method of the ignition control module is as follows: When the ignition control module is activated, it controls the electronic pulse igniter, the fuel pump, the gas delivery solenoid valve, and the heating element to all start. The electronic pulse igniter continuously ignites for K1 seconds, and the fuel pump delivers fuel to the vaporization component. Liquid fuel is supplied and vaporized by the heating element to form gaseous fuel, which is then delivered to the burner head. An ignition needle ignites the gaseous fuel using an electric arc at the burner head. The operation monitoring and control module is connected to the oil inlet pump, the gas supply solenoid valve, the heating element, and the temperature sensor. The control method of the operation monitoring and control module is as follows: When the operation monitoring and control module is activated, the electronic pulse igniter, oil inlet pump, gas supply solenoid valve, and heating element are all activated. The heating element is controlled to maintain the temperature inside the vaporization component within the temperature range A2, where a12≤A2≤a14. The temperature sensor detects the temperature inside the vaporization component and sets an adjustment threshold a13 within the temperature range A2, where a12≤a13≤a14. When the temperature detected by the temperature sensor is lower than the adjustment threshold a13, the heating element is controlled to increase the heating rate. When the temperature detected by the temperature sensor is higher than the adjustment threshold a13, the heating element is controlled to decrease the heating rate.

[0008] Preferably, the control method of the ignition control module further includes: during the first ignition of the ignition control module, the flameout protection probe detects whether the burner head has been successfully ignited and burned. If the burner head is in a successfully ignited and burned state, a signal is sent to the operation monitoring and control module; if the flameout protection probe detects that the burner head has not been successfully ignited and burned, the ignition control module repeats the ignition operation N1 times. If the ignition operation is repeated N1 times and ignition is still unsuccessful, the ignition control module feeds back a fault alarm signal and enters a shutdown state or a standby state. In the shutdown state, the electronic pulse igniter, oil inlet pump, and oil supply pump... The gas on / off solenoid valve and heating element are both closed; in standby mode, the electronic pulse igniter, oil pump, and gas on / off solenoid valve are all closed and the heating element is open; the control method of the operation monitoring and control module also includes: the flameout protection probe continuously detects the combustion status of the burner head; if the flameout protection probe detects that the combustion of the burner head is extinguished, the operation monitoring and control module sends a signal to the ignition control module to repeat the ignition operation N2 times; if the combustion of the burner head is still extinguished after repeating the ignition operation N2 times, the operation monitoring and control module feeds back a fault alarm signal and enters the shutdown state or standby state.

[0009] Preferably, the control system further includes a debugging mode control module, and the control method of the debugging mode control module is as follows: when the debugging mode control module is started, the oil pump, electronic pulse igniter, gas supply solenoid valve and heating element are all turned off, and the start-stop test operation of the oil pump, electronic pulse igniter, gas supply solenoid valve and heating element is performed through the control panel.

[0010] Preferably, the control system further includes a function setting module, which sets the following: a) the N3 levels of combustion firepower; b) the preset ignition start level of the ignition control module; c) the ignition duration of the electronic pulse igniter; and d) the number of repeated ignition operations controlled by the operation monitoring and control module.

[0011] Preferably, the stove body is further provided with a cooling fan electrically connected to the control system. The control system also includes a shutdown control module, which has two working states: a shutdown state and a standby state. In the shutdown state, the electronic pulse igniter, oil pump, gas supply solenoid valve, heating element, and cooling fan are all turned off. In the standby state, the electronic pulse igniter, oil pump, gas supply solenoid valve, and cooling fan are all turned off, and the heating element is turned on.

[0012] A method for controlling a low-heat stove system includes a low-heat stove system, comprising a stove body, a control system, an oil pump, an electronic pulse igniter, and a flameout protection probe. The stove body includes a burner head, a steam inlet chamber located at the bottom of the burner head, and a vaporizer steam delivery assembly corresponding to the steam inlet chamber. The vaporizer steam delivery assembly includes a vaporization component and a gas delivery component connected to the vaporization component. The vaporization component includes, from the outside to the inside, a vaporization shell, a heating element, and an oil inlet pipe. The side wall of the vaporization shell has a steam outlet. The gas delivery component includes a gas delivery cylinder, a movable pin rod with a spring located inside the gas delivery cylinder, and a gas delivery on / off solenoid valve located at the bottom of the gas delivery cylinder that drives the movable pin rod to extend and retract. The side of the gas delivery cylinder has a pipe A that is sealed and connected to the steam outlet. The gas delivery end of the gas delivery cylinder... The device has a steam outlet, and the end of the movable ejector rod has an ejector pin portion that closes the steam outlet. When the gas supply solenoid valve is de-energized, the movable ejector rod, driven by a spring, closes the steam outlet with the ejector pin portion. When the gas supply solenoid valve is energized, it drives the movable ejector rod to compress the spring and open the steam outlet. The oil inlet pipe is connected to the oil outlet of the oil pump. An ignition needle and an electronic pulse igniter connected to the ignition needle are correspondingly arranged around the burner head. A flameout protection probe is arranged around the burner head. A temperature sensing probe inserted into the vaporization component is provided on the vaporizer steam supply assembly. The control system is electrically connected to the oil pump, electronic pulse igniter, gas supply solenoid valve, heating element, and flameout protection probe. The control system is also connected to a control panel. The control system method includes:

[0013] S1. Preheating stage: Control the start of the heating element and allow the heating element to heat the inside of the vaporization component to a temperature range of A1, where a11≤A1≤a12. When the temperature sensor detects that the temperature inside the vaporization component has reached the temperature range of A1, the preheating is completed and the process proceeds to step S2.

[0014] S2, Ignition Stage: The electronic pulse igniter, fuel pump, gas supply solenoid valve, and heating element are all in the start state. The electronic pulse igniter performs its first continuous ignition operation for K1 seconds. The flameout protection probe detects the combustion state for the first time. If the flameout protection probe detects combustion, the ignition operation stops and proceeds to step S3. If the flameout protection probe detects no combustion, the ignition operation is repeated N1 times. If combustion is still not achieved after repeating N1 ignition operations, the system enters the shutdown or standby state. In the shutdown state, the electronic pulse igniter, fuel pump, gas supply solenoid valve, and heating element are all closed. In the standby state, the electronic pulse igniter, fuel pump, and gas supply solenoid valve are all closed, and the heating element is open.

[0015] S3. Combustion Operation Stage: The electronic pulse igniter, fuel pump, gas supply solenoid valve, and heating element are all in the activated state. The heating element is controlled to maintain the internal temperature of the vaporization component within the temperature range A2, where a12≤A2≤a14. The temperature sensor detects the temperature inside the vaporization component and sets an adjustment threshold a13 within the temperature range A2, where a12≤a13≤a14. When the temperature detected by the temperature sensor is lower than the adjustment threshold a13, the heating element is controlled to increase the heating rate. When the temperature detected by the temperature sensor is higher than the adjustment threshold a13, the heating element is controlled to decrease the heating rate.

[0016] The flameout protection probe continuously detects the combustion status of the burner head. If the flameout protection probe detects that the combustion of the burner head has been extinguished, the ignition stage of step S2 is entered first and the ignition operation is repeated N1 times. If the combustion of the burner head is still extinguished after repeating the ignition operation N1 times, the operation monitoring and control module will feed back a fault alarm signal and enter the shutdown state or standby state.

[0017] Preferably, in step S1, the control system sets the longest preheating standby time of the preheating stage to T.

[0018] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0019] (1) This invention provides a simmering stove system suitable for liquid fuel. The control system includes a preheating control module, an ignition control module and an operation monitoring control module. The preheating control module realizes the preheating control of the vaporization operation of the vaporizer steam delivery component. The ignition control module controls the ignition operation of the gas fuel. The operation monitoring control module realizes the operation monitoring and timely response control during the combustion process. It realizes the process-oriented and automated control of preheating, ignition and operation monitoring, and realizes the application of liquid fuel in the field of simmering stoves.

[0020] (2) The present invention can also achieve the purpose of setting functions, shutting down control, and debugging mode control. It can achieve precise control of oil and steam intake, detect flames for flameout protection, and the stove burns quietly and stably when simmering. When simmering is controlled, its maximum fuel consumption is 0.54 kg / hour and its minimum fuel consumption is 0.08 kg / hour, which saves fuel, improves fuel utilization, allows fuel to burn fully, and makes the flame stable and not easy to extinguish. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the principle mechanism of the simmering stove system of the present invention;

[0022] Figure 2 This is a schematic diagram of the vaporizer steam delivery assembly in the embodiment;

[0023] Figure 3 for Figure 2 A three-dimensional structural diagram of the vaporization component;

[0024] Figure 4 This is a schematic diagram of the internal structure of the vaporization component in the embodiment;

[0025] Figure 5 This is a block diagram of the first principle structure of the control system in the embodiment;

[0026] Figure 6 This is a block diagram of the second principle structure of the control system in the embodiment;

[0027] Figure 7 This is a flowchart illustrating a method for controlling a simmering stove in one embodiment.

[0028] The names corresponding to the reference numerals in the attached figures are as follows:

[0029] 1-Control system, 2-Vaporizer steam delivery assembly, 21-Gas delivery on / off solenoid valve, 211-Gas delivery cylinder, 22-Air nozzle, 23-Oil inlet pipe, 24-Vaporization shell, 241-Steam outlet, 25-Temperature sensor, 26-Heating element, 3-Oil tank, 4-Control panel, 5-Slow fire stove body, 51-Burnhead base, 52-Steam inlet chamber, 53-Burnhead, 531-Gas attachment mesh, 6-Flameout protection probe, 7-Electronic pulse igniter, 8-Ignition needle, 9-Oil inlet pump. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to embodiments:

[0031] Example

[0032] like Figure 1 As shown, a low-heat stove system includes a stove body 5, a control system 1, an oil pump 9, and an electronic pulse igniter 7. The stove body 5 includes a burner head 53, a steam inlet chamber 52 located at the bottom of the burner head 53, and a vaporizer steam delivery assembly 2 corresponding to the steam inlet chamber 52. The vaporizer steam delivery assembly 2 is a steam delivery operation that can vaporize liquid fuel into gas and control the vaporized fuel. The vaporizer steam delivery assembly 2 includes a vaporization component and a gas delivery component connected to the vaporization component. The vaporization component is used to realize the vaporization of liquid fuel, and the gas delivery component is used to control the vaporization of gaseous fuel. Preferably, as shown... Figures 2-4 As shown, the vaporization component, from the outside to the inside, includes a vaporization shell 24, a heating element 26, and an oil inlet pipe 23. The vaporization shell 24 has a steam outlet 241 on its side wall. The gas delivery component includes a gas delivery cylinder 211, a movable ejector rod with a spring located inside the gas delivery cylinder 211, and a gas delivery on / off solenoid valve 21 located at the bottom of the gas delivery cylinder 211 that drives the movable ejector rod to extend and retract. (The gas delivery on / off solenoid valve 21 mainly includes an electromagnet, and the movable ejector rod has an armature. When the gas delivery on / off solenoid valve 21 is energized, it attracts the armature on the movable ejector rod and causes the movable ejector rod to move backward. At this time, the movable ejector rod...) The needle rod opens the nozzle 22, which then sprays preheated vaporized fuel. The opening degree of the nozzle 22 can be controlled by the electromagnetic force of the gas supply solenoid valve 21, thereby controlling the amount of steam injected. When the gas supply solenoid valve 21 is de-energized, the spring returns to its original position, completely sealing the nozzle 22. The gas cylinder 211 has a pipe A on its side that is in sealed communication with the steam outlet 241. The gas cylinder 211 has a nozzle 22 at its end, and the movable needle rod has a needle portion that seals the nozzle 22. When the gas supply solenoid valve 21 is de-energized, the movable needle rod, driven by the spring, seals the nozzle 22. When the gas supply solenoid valve 21 is energized, it drives the movable needle rod to compress the spring and open the nozzle 22. The above example illustrates one structure of the vaporizer steam supply assembly 2; other similar structures can also be used.

[0033] Preferably, the oil inlet pipe 23 is connected to the oil outlet of the oil pump 9, and the oil inlet of the oil pump 9 is connected to an oil tank 3 (the oil tank 3 stores liquid fuel, such as liquid fuel made primarily of Fischer-Tropsch synthetic hydrocarbons, industrial white oil, high flash point hydrocarbon compounds, etc., compounded with high molecular weight oxygen-containing compounds and additives to obtain non-toxic and harmless liquid fuel; of course, the present invention can also use other similar vaporizable liquid fuels). An ignition needle 8 and an electronic pulse igniter 7 connected to the ignition needle 8 are correspondingly arranged around the burner head 53 (the ignition needle 8 is located around the burner head 53, and the electronic pulse igniter 7 is electrically connected to the ignition needle 8). The control system 1 is electrically connected to the oil pump 9, the electronic pulse igniter 7, the gas supply on / off solenoid valve 21, and the heating element 26.

[0034] In this embodiment, the present invention also includes a flameout protection probe 6 electrically connected to the control system 1, and the flameout protection probe 6 is arranged around the burner head 53; the control system 1 is also connected to a control panel 4.

[0035] In some embodiments, such as Figure 5 As shown, the control system 1 includes a preheating control module, an ignition control module, and an operation monitoring control module (the control panel 4 can be a touch screen, and the control panel 4 is configured with corresponding control inputs for the preheating control module, the ignition control module, and the operation monitoring control module). The vaporizer steam delivery assembly 2 is equipped with a temperature sensor 25 inserted into the vaporization component. The preheating control module is connected to the temperature sensor 25 and the heating element 26 respectively. The control method of the preheating control module is as follows: when the preheating control module is started, it controls the heating element 26 to start and allows the heating element 26 to heat the inside of the vaporization component to a temperature range of A1, where a11≤A1≤a12. The temperature sensor 25 detects the temperature inside the vaporization component and feeds it back to the preheating control module.

[0036] The ignition control module is connected to the electronic pulse igniter 7, the oil inlet pump 9, the gas supply solenoid valve 21, and the heating element 26. The control method of the ignition control module is as follows: When the ignition control module is started, it controls the electronic pulse igniter 7, the oil inlet pump 9, the gas supply solenoid valve 21, and the heating element 26 to start. The electronic pulse igniter 7 continuously ignites for K1 seconds. The oil inlet pump 9 delivers liquid fuel to the vaporization component. The liquid fuel is vaporized by the heating element 26 to form gaseous fuel and delivered to the burner head 53. The ignition needle 8 ignites the gaseous fuel at the burner head 53 by an electric arc. Preferably, the control method of the ignition control module further includes: during the first ignition of the ignition control module, the flameout protection probe 6 detects whether the burner head 53 has been successfully ignited and burned. If the burner head 53 is in a successfully ignited and burned state, it sends a signal to the operation monitoring and control module. If the flameout protection probe 6 detects that the burner head 53 has failed to ignite, the ignition control module repeats the ignition operation N1 times. If ignition still fails after N1 repetitions, the ignition control module sends a fault alarm signal and enters a shutdown or standby state. In the shutdown state, the electronic pulse igniter 7, oil inlet pump 9, gas supply solenoid valve 21, and heating element 26 are all closed. In the standby state, the electronic pulse igniter 7, oil inlet pump 9, and gas supply solenoid valve 21 are all closed, and the heating element 26 is open.

[0037] The operation monitoring and control module is connected to the oil inlet pump 9, the gas supply solenoid valve 21, the heating element 26, and the temperature sensor 25. The control method of the operation monitoring and control module is as follows: When the operation monitoring and control module is activated, the electronic pulse igniter 7, the oil inlet pump 9, the gas supply solenoid valve 21, and the heating element 26 are all activated. The heating element 26 is controlled to maintain the temperature inside the vaporization component within the temperature range A2, where a12≤A2≤a14. The temperature sensor 25 detects the temperature inside the vaporization component and sets an adjustment threshold a13 within the temperature range A2, where a12≤a13≤a14. When the temperature detected by the temperature sensor 25 is lower than the adjustment threshold a13, the heating element 26 is controlled to increase the heating rate. When the temperature detected by the temperature sensor 25 is higher than the adjustment threshold a13, the heating element 26 is controlled to decrease the heating rate. Preferably, the control method of the operation monitoring and control module further includes: the flameout protection probe 6 continuously detects the combustion status of the burner head 53; if the flameout protection probe 6 detects that the combustion of the burner head 53 has been extinguished, the operation monitoring and control module sends a signal to the ignition control module to repeat the ignition operation N2 times; if the combustion of the burner head 53 is still extinguished after repeating the ignition operation N2 times, the operation monitoring and control module feeds back a fault alarm signal and enters a shutdown state or a standby state.

[0038] In some embodiments, such as Figure 6As shown, the control system 1 also includes a debugging mode control module. The control method of the debugging mode control module is as follows: When the debugging mode control module is started, the oil pump 9, electronic pulse igniter 7, gas supply solenoid valve 21, and heating element 26 are all shut down. The control panel 4 is used to perform start-stop test operations on the oil pump 9, electronic pulse igniter 7, gas supply solenoid valve 21, and heating element 26 respectively to determine whether the relevant components are normal and to perform fault detection and troubleshooting.

[0039] In some embodiments, such as Figure 6 As shown, the control system 1 also includes a function setting module. The function setting module controls the following: a) the N3 levels of combustion heat; b) the preset ignition start level of the ignition control module; c) the ignition duration of the electronic pulse igniter 7; and d) the number of repeated ignition operations controlled by the operation monitoring and control module. Preferably, the function setting module can realize system function settings such as: heat levels 1 to 5, preset ignition start level, ignition duration, solenoid valve start time, flameout protection function activation / deactivation, secondary ignition activation / deactivation, and temperature adjustment frequency for high and low temperature ranges, providing corresponding operating schemes according to the usage requirements of different types of stoves.

[0040] In some embodiments, the simmering stove body 5 is further provided with a cooling fan electrically connected to the control system 1. The bottom of the simmering stove body 5 has a burner base 51 that accommodates a steam inlet chamber 52 (i.e., the steam inlet chamber 52 is located inside the burner base 51), and the cooling fan is disposed on the burner base 51. Figure 6 As shown, the control system 1 also includes a shutdown control module, which has two operating states: a shutdown state and a standby state. In the shutdown state, the electronic pulse igniter 7, the fuel pump 9, the gas supply solenoid valve 21, the heating element 26, and the cooling fan are all turned off. In the standby state, the electronic pulse igniter 7, the fuel pump 9, the gas supply solenoid valve 21, and the cooling fan are all turned off, while the heating element 26 is turned on.

[0041] A method for controlling a low-heat stove system, such as Figures 1 to 7As shown, the stove system includes a simmering stove body 5, a control system 1, an oil pump 9, an electronic pulse igniter 7, and a flameout protection probe 6. The simmering stove body 5 includes a burner head 53, a steam inlet chamber 52 located at the bottom of the burner head 53, and a vaporizer steam delivery assembly 2 corresponding to the steam inlet chamber 52. The vaporizer steam delivery assembly 2 includes a vaporization component and a gas delivery component connected to the vaporization component. The vaporization component includes, from the outside to the inside, a vaporization shell 24 and a heating element 26. The gas delivery system includes an oil inlet pipe 23 and a vaporization shell 24 with a steam outlet 241 on its side wall. The gas delivery component includes a gas delivery cylinder 211, a movable ejector rod with a spring inside the gas delivery cylinder 211, and a gas delivery on / off solenoid valve 21 located at the bottom of the gas delivery cylinder 211 that drives the movable ejector rod to extend and retract. The gas delivery cylinder 211 has a pipe A on its side that is in sealed communication with the steam outlet 241. The gas delivery end of the gas delivery cylinder 211 has the steam outlet 241, and the end of the movable ejector rod has an ejector part that closes the steam outlet 241. When the gas delivery on / off solenoid valve 21 is de-energized, the movable ejector rod, driven by the spring, closes the steam outlet 241 with the ejector part. When the gas delivery on / off solenoid valve 21 is energized, it drives the movable ejector rod to compress the spring and open the steam outlet 241. The oil inlet pipe 23 is connected to the oil outlet of the oil pump 9. An ignition needle 8 and an electronic pulse igniter 7 connected to the ignition needle 8 are correspondingly arranged around the burner head 53. A flameout protection probe 6 is arranged around the burner head 53. A temperature sensing probe 25 inserted into the vaporization component is provided on the vaporizer steam delivery assembly 2. The control system 1 is electrically connected to the oil pump 9, the electronic pulse igniter 7, the gas delivery solenoid valve 21, the heating element 26, and the flameout protection probe 6. The control system 1 is also connected to a control panel 4. The method of the control system 1 includes:

[0042] S1. Preheating Stage: The heating element 26 is activated and heated to a temperature within the vaporization component, where a11 ≤ A1 ≤ a12 (e.g., a11 is 180°C, a12 is 220°C). When the temperature sensor 25 detects that the internal temperature of the vaporization component has reached the temperature range A1, preheating is complete, and the process proceeds to step S2. Preferably, the control system 1 sets the maximum preheating standby time for the preheating stage to T. If the preheating stage reaches the maximum preheating standby time and the simmering stove system is still not in step S2 or step S3, it immediately enters the shutdown state (i.e., the simmering stove system is powered off). In some embodiments, relying on the simmering stove system (including the control system) of the present invention, the control system follows... Figure 7 The flowchart shown illustrates the workflow control process. Workflow control includes sections such as "preheating start-up phase," "ignition start-up phase," "running phase," "stop / standby phase," "function setting," and "debugging mode." For example... Figure 7As shown, during the preheating stage, the functional principle includes: after detecting the preheating start signal in the off state, the carburetor temperature reaches the preset temperature and enters the preheating standby state, activating the standby preheating timer while waiting for the ignition start signal; in the standby preheating state, the heating element 26 of the carburetor steam delivery assembly 2 operates in low-power mode to maintain the carburetor temperature between 180°C and 220°C; if ignition is not started after the maximum preheating standby time preset by the timer, the system immediately enters the off state.

[0043] S2, Ignition Stage: The electronic pulse igniter 7, fuel pump 9, gas supply solenoid valve 21, and heating element 26 are all in the activated state. The electronic pulse igniter 7 performs its first continuous ignition operation for K1 seconds. The flameout protection probe 6 performs its first ignition combustion state detection. If the flameout protection probe 6 detects combustion, the ignition operation stops and proceeds to step S3. If the flameout protection probe 6 detects no combustion, the ignition operation is repeated N1 times. If combustion is still not achieved after repeating the ignition operation N1 times, the system enters a shutdown or standby state. In the shutdown state, the electronic pulse igniter 7, fuel pump 9, gas supply solenoid valve 21, and heating element 26 are all closed. In the standby state, the electronic pulse igniter 7, fuel pump 9, and gas supply solenoid valve 21 are all closed, and the heating element 26 is open.

[0044] S3. Combustion Operation Stage: The electronic pulse igniter 7, fuel pump 9, gas supply on / off solenoid valve 21, and heating element 26 are all in the activated state. The heating element 26 is controlled to maintain the internal temperature of the vaporization component within the temperature range A2, where a12≤A2≤a14. The temperature sensor 25 detects the temperature inside the vaporization component and sets an adjustment threshold a13 within the temperature range A2, where a12≤a13≤a14 (e.g., a12 is 220℃, a14 is 280℃, and a13 is 240℃). When the temperature detected by the temperature sensor 25 is lower than the adjustment threshold a13, the heating element 26 is controlled to increase the heating rate. When the temperature detected by the temperature sensor 25 is higher than the adjustment threshold a13, the heating element 26 is controlled to decrease the heating rate. In some embodiments, the heating temperature of the vaporizer steam delivery assembly 2 is maintained between 220°C and 280°C to ensure complete fuel vaporization. If the temperature exceeds 240°C, the heating power enters a low-power mode to reduce the temperature rise; if the temperature falls below 240°C, the heating power enters a high-power mode to increase the temperature rise. The system detects the firepower adjustment signal input from the control panel 4 and adjusts the oil pump injection quantity to regulate the vaporizer temperature. During combustion, the gaseous fuel generated by heating through the vaporizer steam delivery assembly 2 is injected into the burner head through the nozzle 22. After passing through the gas attachment mesh 531 (with a dense mesh surface) on the burner head 53, it mixes thoroughly with air to form a uniformly distributed and stable flame. The adjustable damper adjusts the air intake of the burner head 53, allowing the flame to burn outside the mesh surface, resulting in a fully combusted blue flame. This prevents heat buildup inside the burner head, which could lead to excessively high burner head temperatures and backfire. During operation, the system reads the flame sensor signal to determine if it is "normally burning". If the flame is extinguished, it attempts to ignite again in the third-level mode. If ignition is successful, it returns to the flame level when the flame was extinguished. If the second ignition fails, the system identifies an abnormal fault, shuts off the power output of the electronic pulse igniter 7, fuel pump 9, gas supply solenoid valve 21, heating element 26, and cooling fan, enters a shutdown state, and issues a fault alarm signal.

[0045] The flameout protection probe 6 continuously detects the combustion status of the burner head 53. If the flameout protection probe 6 detects that the combustion of the burner head 53 has been extinguished, the ignition stage of step S2 is entered first and the ignition operation is repeated N1 times. If the combustion of the burner head 53 is still extinguished after repeating the ignition operation N1 times, the operation monitoring and control module will feed back a fault alarm signal and enter the shutdown state or standby state.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A low-heat stove system, characterized in that: The stove body (5) includes a simmering stove body (5), a control system (1), an oil pump (9), and an electronic pulse igniter (7). The simmering stove body (5) includes a burner head (53), a steam inlet chamber (52) located at the bottom of the burner head (53), and a vaporizer steam delivery assembly (2) corresponding to the steam inlet chamber (52). The vaporizer steam delivery assembly (2) includes a vaporization component and a gas delivery component connected to the vaporization component. The vaporization component includes, from the outside to the inside, a vaporization shell (24), a heating element (26), and an oil inlet pipe (23). The side wall of the vaporization shell (24) is provided with a steam outlet ( 241), the gas delivery component includes a gas delivery cylinder (211), a movable ejector rod with a spring located inside the gas delivery cylinder (211), and a gas delivery on / off solenoid valve (21) located at the bottom of the gas delivery cylinder (211) that drives the movable ejector rod to extend and retract. The side of the gas delivery cylinder (211) has a pipe A that is in sealed communication with the steam outlet (241). The end of the gas delivery cylinder (211) has a jet nozzle (22), and the end of the movable ejector rod has an ejector pin that closes the jet nozzle (22). When the gas delivery on / off solenoid valve (21) is de-energized, the movable ejector rod, driven by the spring, causes the ejector pin to close the jet nozzle (22). When the gas supply solenoid valve (21) is energized, the gas supply solenoid valve (21) drives the movable pin rod to compress the spring and open the gas nozzle (22); the oil inlet pipe (23) is connected to the oil outlet of the oil pump (9); the burner head (53) is surrounded by an ignition needle (8) and an electronic pulse igniter (7) connected to the ignition needle (8); the control system (1) is electrically connected to the oil pump (9), the electronic pulse igniter (7), the gas supply solenoid valve (21), and the heating element (26); the control system (1) includes preheating The control module, ignition control module and operation monitoring control module are provided. The vaporizer steam delivery assembly (2) is equipped with a temperature sensor (25) inserted into the vaporization component. The preheating control module is connected to the temperature sensor (25) and the heating element (26) respectively. The control method of the preheating control module is as follows: When the preheating control module is started, the heating element (26) is started and the heating element (26) heats the inside of the vaporization component to a temperature range of A1, where a11≤A1≤a12. The temperature sensor (25) detects the temperature inside the vaporization component and feeds it back to the preheating control module. The ignition control module is connected to the electronic pulse igniter (7), the oil pump (9), the gas supply solenoid valve (21), and the heating element (26) respectively. The control method of the ignition control module is as follows: When the ignition control module is started, the electronic pulse igniter (7), the oil pump (9), the gas supply solenoid valve (21), and the heating element (26) are all started. The electronic pulse igniter (7) continuously ignites for K1 seconds. The oil pump (9) delivers liquid fuel to the vaporization component. The liquid fuel is vaporized by the heating element (26) to form gaseous fuel and delivered to the burner head (53). The ignition needle (8) ignites the gaseous fuel with an electric arc at the burner head (53). The operation monitoring and control module is connected to the oil pump (9), the gas supply solenoid valve (21), the heating element (26), and the temperature sensor (25) respectively. The control method of the operation monitoring and control module is as follows: When the operation monitoring and control module is started, the electronic pulse igniter (7), the oil pump (9), the gas supply solenoid valve (21), and the heating element (26) are all started. The heating element (26) is controlled to heat the vaporization component and maintain the temperature inside within the range of A2, where a12≤A2≤a14. The temperature sensor (25) detects the temperature inside the vaporization component and sets an adjustment threshold a13 within the range of A2, where a12≤a13≤a14. When the temperature detected by the temperature sensor (25) is lower than the adjustment threshold a13, the heating element (26) is controlled to increase the heating rate. When the temperature detected by the temperature sensor (25) is higher than the adjustment threshold a13, the heating element (26) is controlled to decrease the heating rate.

2. A low-heat stove system according to claim 1, characterized in that: It also includes a flameout protection probe (6) electrically connected to the control system (1), the flameout protection probe (6) being arranged around the burner head (53); the control system (1) is also connected to a control panel (4).

3. A low-heat stove system according to claim 2, characterized in that: The control method of the ignition control module further includes: during the first ignition of the ignition control module, the flameout protection probe (6) detects whether the burner head (53) is successfully ignited and burned. If the burner head (53) is in a successfully ignited and burned state, a signal is sent to the operation monitoring and control module. If the flameout protection probe (6) detects that the burner head (53) has not been successfully ignited and burned, the ignition control module repeats the ignition operation N1 times. If the ignition operation is repeated N1 times and the ignition is still not successfully ignited and burned, the ignition control module feeds back a fault alarm signal and enters a shutdown state or a standby state. In the shutdown state, the electronic pulse igniter (7), the oil pump (9), the gas supply solenoid valve (21), and the heating element (26) are all closed. In the standby state, the electronic pulse igniter (7), the oil pump (9), and the gas supply solenoid valve (21) are all closed and the heating element (26) is open. The control method of the operation monitoring and control module further includes: the flameout protection probe (6) continuously detects the combustion status of the burner head (53). If the flameout protection probe (6) detects that the combustion of the burner head (53) is extinguished, the operation monitoring and control module sends a signal to the ignition control module to repeat the ignition operation N2 times. If the combustion of the burner head (53) is still extinguished after repeating the ignition operation N2 times, the operation monitoring and control module feeds back a fault alarm signal and enters the shutdown state or standby state.

4. A low-heat stove system according to claim 1 or 2, characterized in that: The control system (1) also includes a debugging mode control module. The control method of the debugging mode control module is as follows: When the debugging mode control module is started, the oil pump (9), electronic pulse igniter (7), gas supply solenoid valve (21), and heating element (26) are all turned off. The start-stop test operation of the oil pump (9), electronic pulse igniter (7), gas supply solenoid valve (21), and heating element (26) is performed through the control panel (4).

5. A low-heat stove system according to claim 3, characterized in that: The control system (1) also includes a function setting module, which sets the control of: a) the N3 levels of combustion firepower; b) the preset ignition start level of the ignition control module; c) the ignition duration of the electronic pulse igniter (7); and d) the number of repeated ignition operations when controlled by the operation monitoring and control module.

6. A low-heat stove system according to claim 1 or 2, characterized in that: The main body (5) of the simmering stove is also equipped with a cooling fan electrically connected to the control system (1). The control system (1) also includes a shutdown control module. The shutdown control module includes two working states: shutdown state and standby state. In the shutdown state, the electronic pulse igniter (7), oil pump (9), gas supply solenoid valve (21), heating element (26), and cooling fan are all turned off. In the standby state, the electronic pulse igniter (7), oil pump (9), gas supply solenoid valve (21), and cooling fan are all turned off and the heating element (26) is turned on.

7. A method for controlling a low-heat stove system, characterized in that: The system includes a simmering stove system, comprising a simmering stove body (5), a control system (1), an oil pump (9), an electronic pulse igniter (7), and a flameout protection probe (6). The simmering stove body (5) includes a burner head (53), a steam inlet chamber (52) located at the bottom of the burner head (53), and a vaporizer steam delivery assembly (2) corresponding to the steam inlet chamber (52). The vaporizer steam delivery assembly (2) includes a vaporization component and a gas delivery component connected to the vaporization component. The vaporization component includes, from the outside to the inside, a steam delivery component. The vaporization housing (24), heating element (26), and oil inlet pipe (23) are provided. The side wall of the vaporization housing (24) is provided with a steam outlet (241). The gas delivery component includes a gas delivery cylinder (211), a movable ejector rod with a spring located inside the gas delivery cylinder (211), and a gas delivery on / off solenoid valve (21) located at the bottom of the gas delivery cylinder (211) to drive the movable ejector rod to extend and retract. The side of the gas delivery cylinder (211) has a pipe A that is in sealed communication with the steam outlet (241). The gas delivery end of the gas delivery cylinder (211) has a steam outlet (241). 241), the end of the movable ejector rod has an ejector part that closes the steam outlet (241); when the gas supply solenoid valve (21) is de-energized, the movable ejector rod, driven by the spring, closes the steam outlet (241) with the ejector part; when the gas supply solenoid valve (21) is energized, the gas supply solenoid valve (21) drives the movable ejector rod to compress the spring and open the steam outlet (241); the oil inlet pipe (23) is connected to the oil outlet of the oil pump (9), and the ignition needle (8) is correspondingly provided around the furnace head (53), and the ignition needle (8) 8) The connected electronic pulse igniter (7) is provided with the flameout protection probe (6) positioned around the burner head (53), and the vaporizer steam delivery assembly (2) is provided with a temperature sensing probe (25) inserted into the vaporization component; the control system (1) is electrically connected to the oil pump (9), the electronic pulse igniter (7), the gas delivery solenoid valve (21), the heating element (26), and the flameout protection probe (6), respectively, and the control system (1) is also connected to the control panel (4); the method of the control system (1) includes: S1, Preheating stage: Control the start of the heating element (26) and let the heating element (26) heat the inside of the vaporization component to the temperature range A1, a11≤A1≤a12. When the temperature sensor (25) detects that the temperature inside the vaporization component reaches the temperature range A1, the preheating is completed and the process proceeds to step S2. S2, Ignition Stage: The electronic pulse igniter (7), oil pump (9), gas supply solenoid valve (21), and heating element (26) are all in the start-up state. The electronic pulse igniter (7) performs the first continuous ignition operation for K1 seconds. The flameout protection probe (6) performs the first ignition combustion state detection. If the flameout protection probe (6) detects a combustion state, the ignition operation is stopped and the process proceeds to step S3. If the flameout protection probe (6) detects an unburned state, the ignition operation is repeated N1 times. If the combustion state is not reached after repeating the ignition operation N1 times, the process enters the shutdown state or standby state. In the shutdown state, the electronic pulse igniter (7), oil pump (9), gas supply solenoid valve (21), and heating element (26) are all closed. In the standby state, the electronic pulse igniter (7), oil pump (9), and gas supply solenoid valve (21) are all closed and the heating element (26) is open. S3, Combustion Operation Stage: The electronic pulse igniter (7), fuel pump (9), gas supply solenoid valve (21), and heating element (26) are all in the start-up state. The heating element (26) is controlled to heat the vaporization component and maintain the temperature inside within the range of A2, where a12≤A2≤a14. The temperature sensor (25) detects the temperature inside the vaporization component and sets an adjustment threshold a13 within the temperature range of A2, where a12≤a13≤a14. When the temperature detected by the temperature sensor (25) is lower than the adjustment threshold a13, the heating element (26) is controlled to increase the heating rate. When the temperature detected by the temperature sensor (25) is higher than the adjustment threshold a13, the heating element (26) is controlled to decrease the heating rate. The flameout protection probe (6) continuously detects the combustion status of the burner head (53). If the flameout protection probe (6) detects that the combustion of the burner head (53) is extinguished, it first enters the ignition stage of step S2 and repeats the ignition operation N1 times. If the combustion of the burner head (53) is still extinguished after repeating the ignition operation N1 times, the operation monitoring and control module feeds back a fault alarm signal and enters the shutdown state or standby state.

8. A method for controlling a simmering stove system according to claim 7, characterized in that: In step S1, the control system (1) sets the longest preheating standby time of the preheating stage to T.

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