CN112212364A - Pre-mixing control system for commercial gas cooker - Google Patents
Pre-mixing control system for commercial gas cooker Download PDFInfo
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- CN112212364A CN112212364A CN202011094192.9A CN202011094192A CN112212364A CN 112212364 A CN112212364 A CN 112212364A CN 202011094192 A CN202011094192 A CN 202011094192A CN 112212364 A CN112212364 A CN 112212364A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 239000000779 smoke Substances 0.000 claims abstract description 32
- 238000010411 cooking Methods 0.000 claims description 22
- 150000002500 ions Chemical group 0.000 claims description 20
- 239000000523 sample Substances 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- UHZZMRAGKVHANO-UHFFFAOYSA-M chlormequat chloride Chemical compound [Cl-].C[N+](C)(C)CCCl UHZZMRAGKVHANO-UHFFFAOYSA-M 0.000 claims 9
- 239000000203 mixture Substances 0.000 claims 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 149
- 230000002159 abnormal effect Effects 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical class [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/008—Ranges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a front premixing control system for a commercial gas cooker, which comprises a front premixing controller for the commercial gas cooker, a front premixing display screen for the commercial gas cooker, a Venturi premixer and a zero-pressure gas electromagnetic valve, and further comprises a switching signal detection unit, a water tank temperature detection unit, a smoke exhaust temperature detection unit and a gas flow detection unit, wherein the switching signal detection unit, the water tank temperature detection unit, the smoke exhaust temperature detection unit and the gas flow detection unit are respectively connected with the signal input end of the front premixing controller for the commercial gas cooker, and the signal output end of the front premixing controller for the commercial gas cooker is also respectively connected with an igniter, a fan, the Venturi premixer, the zero-pressure gas electromagnetic valve and the water supply and water supply control of the water tank configuration in the gas cooker. The invention solves the problem of unstable control and operation of the cooker in the pan-away fire extinguishing technology.
Description
Technical Field
The invention relates to the field of gas cooker control systems, in particular to a front premixing control system for a commercial gas cooker.
Background
At present, commercial gas cooking utensils are used in Chinese food restaurants and dining halls in China, the used cooking stove is an air-blowing burner (furnace end), the technical content is low, and the safety, the heat efficiency and the use function can not meet the current high fuel price and the requirements of cooks and catering owners; the adopted pan is away from the fire and puts out the technique and only closes main air valve, and the fan still maximum speed operation, and the normal naked light is extinguished easily, and flame-out protection easily triggers, has the unstable problem of control and operation, and the cook uses the operation inconvenient, and this is also the main problem that commercial gas cooking utensils trade faced at present.
Disclosure of Invention
The invention aims to provide a pre-mixing control system for a commercial gas cooker, which aims to solve the problem of unstable control and operation of the cooker in the pan-out and fire-extinguishing technology in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a premix control system before being used for commercial gas cooking utensils which characterized in that: premixing controller, commercial gas cooking utensils before the commercial gas cooking utensils in advance mixes the display screen to and venturi premixer, zero pressure gas solenoid valve, wherein the air inlet of fan is connected in venturi premixer's the gas outlet and the cooking utensils, and air is introduced to an air inlet of venturi premixer, and another air inlet of venturi premixer and zero pressure gas solenoid valve's exit linkage, zero pressure gas solenoid valve's access connection gas pipeline still includes:
the switch signal detection unit detects flame in the cooker as a signal basis for judging the switch of the cooker;
the water tank temperature detection unit is used for detecting the temperature of water in a water tank of a heat exchange device in the stove;
a smoke exhaust temperature detection unit for detecting the smoke exhaust temperature in a smoke exhaust pipeline in the stove;
the gas flow detection unit is used for detecting the gas flow and the fan rotating speed at the outlet of the zero-pressure gas electromagnetic valve;
the switch signal detection unit, the water tank temperature detection unit, the exhaust gas temperature detection unit and the gas flow detection unit are respectively connected with the signal input end of the commercial gas cooker front premixing controller, and the signal output end of the commercial gas cooker front premixing controller is also respectively connected with an igniter, a fan, a Venturi premixer, a zero-pressure gas electromagnetic valve and a water supply electromagnetic valve configured in the cooker in a control manner; and the signal output end of the pre-mixing controller in front of the commercial gas cooker is also connected with the signal input end of the pre-mixing display screen in front of the commercial gas cooker.
The premixing control system for the commercial gas cooker is characterized in that: the switch signal detection unit is an ion probe installed on a cooking range, the ion probe detects flame and generates a signal to be sent to the commercial gas cooking range front premixing controller, and the commercial gas cooking range front premixing controller generates a switch signal after receiving the signal of the ion probe.
The premixing control system for the commercial gas cooker is characterized in that: the water tank temperature detection unit is a water temperature sensor arranged in a water tank of the heat exchange device, and the water temperature sensor is used for measuring a temperature signal of water in the water tank and sending the temperature signal to the pre-mixing controller in front of the commercial gas cooker;
the smoke exhaust temperature detection unit is a smoke temperature sensor arranged in a smoke exhaust pipeline, and the smoke temperature sensor is used for measuring smoke exhaust temperature signals of the smoke exhaust pipeline and sending the smoke exhaust temperature signals into the premixing controller in front of the commercial gas cooker.
The premixing control system for the commercial gas cooker is characterized in that: the gas flow detection unit is composed of a flow meter arranged at the outlet of a zero-pressure gas electromagnetic valve and a rotating speed sensor arranged on a rotating shaft of a fan, wherein the flow meter is used for measuring a gas flow signal at the outlet of the zero-pressure gas electromagnetic valve and sending the gas flow signal into the front premixing controller of the commercial gas cooker, the rotating speed sensor is used for measuring a rotating speed signal of the fan and sending the rotating speed signal into the front premixing controller of the commercial gas cooker, and the front premixing controller of the commercial gas cooker calculates the instantaneous gas flow and the accumulated gas flow according to the gas flow at the outlet of the zero-.
The premixing control system for the commercial gas cooker is characterized in that: the front premixing controller of the commercial gas cooker controls the fan to purge for 1-5s at the maximum rotating speed and then automatically turns to the ignition rotating speed, then controls the igniter to ignite under high pressure and the zero-pressure gas electromagnetic valve to be opened, and generates a signal when the front premixing controller of the commercial gas cooker receives the flame detected by the ion probe during ignition so as to complete ignition control; after high-pressure ignition, when the ion probe cannot detect flame, the pre-mixing controller before the commercial gas cooker cannot receive a signal generated by the ion probe, and then the pre-mixing controller before the commercial gas cooker controls the zero-pressure gas electromagnetic valve to be closed, so that flameout protection control is completed, and ignition flameout protection control is further completed.
The premixing control system for the commercial gas cooker is characterized in that: the commercial gas cooking appliance front premixing controller controls the fan to work in a PWM control mode, and simultaneously controls the venturi premixer and the zero-pressure gas electromagnetic valve to work, so that gas enters the venturi premixer through the zero-pressure gas electromagnetic valve and then enters the air inlet of the fan after being mixed with air, and the pre-mixing control before the fan is finished.
The premixing control system for the commercial gas cooker is characterized in that: the commercial gas cooker front premixing controller adjusts the rotating speed of the fan according to a gas flow signal at the outlet of the zero-pressure gas electromagnetic valve, which is obtained by the gas flow detection unit, so that the suction force of the fan drives the zero-pressure gas electromagnetic valve to admit gas, the synchronous increase and decrease of the gas amount of the gas which is admitted along with the increase and decrease of the rotating speed of the fan are ensured, and the control of the gas electromagnetic valve is completed.
The premixing control system for the commercial gas cooker is characterized in that: the commercial gas cooker front premixing controller controls the water feeding electromagnetic valve to be opened when the water temperature of the water tank is higher than a set temperature value according to a signal of the water tank temperature detection unit, and controls the water feeding electromagnetic valve to be closed when the water temperature of the water tank is lower than the set temperature value, so that the water feeding electromagnetic valve control is completed.
The premixing control system for the commercial gas cooker is characterized in that: the communication end of the premixing controller in front of the commercial gas cooker is connected with a remote communication module, and the premixing controller in front of the commercial gas cooker realizes remote transmission of data through the remote communication module.
The premixing control system for the commercial gas cooker is characterized in that: the premixing display screen kitchen range in front of the commercial gas kitchen range receives data transmitted by a premixing controller in front of the commercial gas kitchen range, and displays the current operation time length, the accumulated operation time length of the kitchen range, the water temperature of a water tank, the exhaust gas temperature, the instantaneous gas flow rate, the accumulated gas flow rate, the ignition flameout protection, the combustion power, the gas electromagnetic valve switch, the water supply electromagnetic valve switch and the fault.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the venturi premixer and the zero-pressure gas electromagnetic valve are additionally arranged at the front end of the air inlet of the fan, so that gas and air are fully mixed, the combustion is more sufficient, and the discharge amount of harmful gases such as carbon oxides, nitrogen oxides and the like is reduced;
2. the currently used firepower and the minimum firepower can be freely switched by the pre-mixing controller in front of the commercial gas cooker, and the traditional pan is replaced by the pre-mixing controller, so that the stability of combustion operation is guaranteed, the energy is saved, and the consumption of conventional energy is reduced.
3. The invention is applied to the commercial gas cooker, is a great revolution of the commercial gas cooker, and opens up the way for the pre-mixing burner before the commercial gas cooker is applied.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a flow chart of the operation of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1, the present invention is used for a pre-mixing control system of a commercial gas cooker, and comprises a pre-mixing controller of the commercial gas cooker, a pre-mixing display screen of the commercial gas cooker, a venturi pre-mixer, and a zero-pressure gas electromagnetic valve, wherein an air outlet of the venturi pre-mixer is connected with an air inlet of a fan in the cooker, air is introduced into one air inlet of the venturi pre-mixer, another air inlet of the venturi pre-mixer is connected with an outlet of the zero-pressure gas electromagnetic valve, and an inlet of the zero-pressure gas electromagnetic valve is connected with a gas pipeline, and the present invention further comprises:
the switch signal detection unit detects flame in the cooker as a signal basis for judging the switch of the cooker;
the water tank temperature detection unit is used for detecting the temperature of water in a water tank of a heat exchange device in the stove;
a smoke exhaust temperature detection unit for detecting the smoke exhaust temperature in a smoke exhaust pipeline in the stove;
the gas flow detection unit is used for detecting the gas flow and the fan rotating speed at the outlet of the zero-pressure gas electromagnetic valve;
the switch signal detection unit, the water tank temperature detection unit, the exhaust gas temperature detection unit and the gas flow detection unit are respectively connected with the signal input end of the commercial gas cooker front premixing controller, and the signal output end of the commercial gas cooker front premixing controller is also respectively connected with an igniter, a fan, a Venturi premixer, a zero-pressure gas electromagnetic valve and a water supply electromagnetic valve configured in the cooker in a control manner; and the signal output end of the pre-mixing controller in front of the commercial gas cooker is also connected with the signal input end of the pre-mixing display screen in front of the commercial gas cooker.
In the invention, the switch signal detection unit is an ion probe arranged on a cooking range, the ion probe detects flame and generates a signal to be sent to the front premixing controller of the commercial gas cooking range, and the front premixing controller of the commercial gas cooking range generates a switch signal after receiving the signal of the ion probe.
In the invention, a water tank temperature detection unit is a water temperature sensor arranged in a water tank of a heat exchange device, and the water temperature sensor is used for measuring a temperature signal of water in the water tank and sending the temperature signal to a pre-mixing controller in front of a commercial gas cooker;
the smoke exhaust temperature detection unit is a smoke temperature sensor arranged in the smoke exhaust pipeline, and the smoke temperature sensor measures a smoke exhaust temperature signal of the smoke exhaust pipeline and sends the smoke exhaust temperature signal to the pre-mixing controller in front of the commercial gas cooker.
The invention relates to a gas flow detection unit, which comprises a flow meter arranged at the outlet of a zero-pressure gas electromagnetic valve and a rotating speed sensor arranged on a rotating shaft of a fan, wherein a gas flow signal at the outlet of the zero-pressure gas electromagnetic valve is measured by the flow meter and sent to a front premixing controller of a commercial gas cooker, a rotating speed signal of the fan is measured by the rotating speed sensor and sent to the front premixing controller of the commercial gas cooker, and the front premixing controller of the commercial gas cooker calculates the instantaneous gas flow and the accumulated gas flow according to the gas flow at the outlet of the zero-pressure gas electromagnetic valve and the.
In the invention, a front premixing controller of a commercial gas cooker controls a fan to purge for 1-5s at the maximum rotating speed and then automatically turns to an ignition rotating speed, then the front premixing controller of the commercial gas cooker controls an igniter to ignite under high pressure and a zero-pressure gas electromagnetic valve to be opened, and the front premixing controller of the commercial gas cooker generates a signal when receiving flame detected by an ion probe during ignition so as to complete ignition control; after high-pressure ignition, when the ion probe cannot detect flame, the pre-mixing controller before the commercial gas cooker cannot receive a signal generated by the ion probe, and then the pre-mixing controller before the commercial gas cooker controls the zero-pressure gas electromagnetic valve to be closed, so that flameout protection control is completed, and ignition flameout protection control is further completed.
In the invention, the front premixing controller of the commercial gas cooker controls the fan to work in a PWM control mode, and simultaneously controls the venturi premixer and the zero-pressure gas electromagnetic valve to work, so that gas enters the venturi premixer through the zero-pressure gas electromagnetic valve to be mixed with air and then enters the air inlet of the fan, and the front premixing control of the fan is completed.
According to the invention, the front premixing controller of the commercial gas cooker adjusts the rotating speed of the fan according to the gas flow signal at the outlet of the zero-pressure gas electromagnetic valve obtained by the gas flow detection unit, so that the suction force of the fan drives the zero-pressure gas electromagnetic valve to admit gas, the gas inlet gas quantity is ensured to be increased and decreased synchronously along with the increase and decrease of the rotating speed of the fan, and the control of the gas electromagnetic valve is completed.
According to the invention, the front premixing controller of the commercial gas cooker controls the water supply electromagnetic valve to be opened when the water temperature of the water tank is higher than a set temperature value and controls the water supply electromagnetic valve to be closed when the water temperature of the water tank is lower than the set temperature value according to the signal of the water tank temperature detection unit, thereby completing the control of the water supply electromagnetic valve.
According to the invention, the communication end of the front premixing controller of the commercial gas cooker is connected with the remote communication module, and the front premixing controller of the commercial gas cooker realizes remote data transmission through the remote communication module.
In the invention, the commercial gas cooker front premixing display screen cooker receives data transmitted by the commercial gas cooker front premixing controller, and performs current operation time length display, cooker accumulated operation time length display, water tank water temperature display, exhaust gas temperature display, gas instantaneous flow rate display, gas accumulated flow rate display, ignition flameout protection display, combustion power display, gas electromagnetic valve switch display, water supply electromagnetic valve switch display and fault display.
As shown in fig. 2, the working flow of the present invention is as follows:
the operation is started (S100), the start button (S200) is clicked and pressed to be started, the controller automatically detects (S300), whether the gas electromagnetic valve is abnormal or not (abnormal start prohibition is provided) is detected, whether the ion probe has a signal or not (flame signal is detected when no ignition is provided), flame detection is abnormal, start prohibition and ignition failure is displayed, if abnormal fault is reported (S3001), the operation is returned to the start button (S200) to be started, the operation is continued, if abnormal fault is not provided, the self-checking is normal, the fan is started to operate (S400) and operates at the maximum rotating speed, forward blowing is performed for 5 seconds/1 second, the rotating speed of the fan is automatically adjusted to the ignition rotating speed after the current blowing is finished, high-pressure ignition is started (S500), the high-pressure ignition needle discharges electricity, the gas electromagnetic valve is automatically opened (S600), ignition is started, the ion needle detects the flame (S700) signal, and immediately closing the system and reporting an abnormal fault of ignition failure (S3001), wherein a flame signal is present within 1 second, namely ignition is carried out. When the flame is normal (namely, the flame probe detects the flame), the firepower knob (S800) is rotated to control the rotating speed of the fan corresponding to the firepower. And (5) pressing a start-stop button (S900) to close the system, carrying out blowing after the fan performs 30 seconds, running at the maximum rotating speed after the blowing, stopping the fan after the running is finished, and finishing the whole running work (S1000).
According to the invention, the Venturi premixer and the zero-pressure main pipe gas electromagnetic valve are additionally arranged at the front end of the air inlet of the direct-current speed-regulating fan, so that gas and air are fully mixed, the combustion is more sufficient, and the discharge amount of harmful gases such as carbon oxides, nitrogen oxides and the like is reduced; at present, the firepower and the minimum firepower can be freely switched through the firepower switching button, and the traditional mode that the pot is away from the fire to be extinguished is replaced, so that the stability of combustion operation is guaranteed, the energy is saved, and the consumption of conventional energy is reduced.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.
Claims (10)
1. The utility model provides a premix control system before being used for commercial gas cooking utensils which characterized in that: mix the combustion controller in advance before commercial gas cooking utensils, mix the control display screen in advance before commercial gas cooking utensils to and venturi premixer, zero pressure gas solenoid valve, wherein the export of venturi premixer is connected with the air inlet of cooking utensils fan, and air is introduced to an air inlet of venturi premixer, and another air inlet of venturi premixer and zero pressure gas solenoid valve's exit linkage, zero pressure gas solenoid valve's access connection gas pipeline still includes:
the switch signal detection unit detects flame in the cooker as a signal basis for judging the switch of the cooker;
the water tank temperature detection unit is used for detecting the temperature of water in a water tank of a heat exchange device in the stove;
a smoke exhaust temperature detection unit for detecting the smoke exhaust temperature in a smoke exhaust pipeline in the stove;
the gas flow detection unit is used for detecting the gas flow and the fan rotating speed at the outlet of the zero-pressure gas electromagnetic valve;
the switch signal detection unit, the water tank temperature detection unit, the exhaust gas temperature detection unit and the gas flow detection unit are respectively connected with the signal input end of the commercial gas cooker front premixing controller, and the signal output end of the commercial gas cooker front premixing controller is also respectively connected with an igniter, a fan, a Venturi premixer, a zero-pressure gas electromagnetic valve and a water supply electromagnetic valve configured in the cooker in a control manner; and the signal output end of the pre-mixing controller in front of the commercial gas cooker is also connected with the signal input end of the pre-mixing display screen in front of the commercial gas cooker.
2. A pre-mix control system for a commercial gas cooker as claimed in claim 1, wherein: the switch signal detection unit is an ion probe installed on a cooking range, the ion probe detects flame and generates a signal to be sent to the commercial gas cooking range front premixing controller, and the commercial gas cooking range front premixing controller generates a switch signal after receiving the signal of the ion probe.
3. A pre-mix control system for a commercial gas cooker as claimed in claim 1, wherein: the water tank temperature detection unit is a water temperature sensor arranged in a water tank of the heat exchange device, and the water temperature sensor is used for measuring a temperature signal of water in the water tank and sending the temperature signal to the pre-mixing controller in front of the commercial gas cooker;
the smoke exhaust temperature detection unit is a smoke temperature sensor arranged in a smoke exhaust pipeline, and the smoke temperature sensor is used for measuring smoke exhaust temperature signals of the smoke exhaust pipeline and sending the smoke exhaust temperature signals into the premixing controller in front of the commercial gas cooker.
4. A pre-mix control system for a commercial gas cooker as claimed in claim 1, wherein: the gas flow detection unit is composed of a flow meter arranged at the outlet of a zero-pressure gas electromagnetic valve and a rotating speed sensor arranged on a rotating shaft of a fan, wherein the flow meter is used for measuring a gas flow signal at the outlet of the zero-pressure gas electromagnetic valve and sending the gas flow signal into the front premixing controller of the commercial gas cooker, the rotating speed sensor is used for measuring a rotating speed signal of the fan and sending the rotating speed signal into the front premixing controller of the commercial gas cooker, and the front premixing controller of the commercial gas cooker calculates the instantaneous gas flow and the accumulated gas flow according to the gas flow at the outlet of the zero-.
5. A pre-mix control system for a commercial gas cooker as claimed in claim 1, wherein: the front premixing controller of the commercial gas cooker controls the fan to purge for 1-5s at the maximum rotating speed and then automatically turns to the ignition rotating speed, then controls the igniter to ignite under high pressure and the zero-pressure gas electromagnetic valve to be opened, and generates a signal when the front premixing controller of the commercial gas cooker receives the flame detected by the ion probe during ignition so as to complete ignition control; after high-pressure ignition, when the ion probe cannot detect flame, the pre-mixing controller before the commercial gas cooker cannot receive a signal generated by the ion probe, and then the pre-mixing controller before the commercial gas cooker controls the zero-pressure gas electromagnetic valve to be closed, so that flameout protection control is completed, and ignition flameout protection control is further completed.
6. A pre-mix control system for a commercial gas cooker as claimed in claim 1, wherein: the commercial gas cooking appliance front premixing controller controls the fan to work in a PWM control mode, and simultaneously controls the venturi premixer and the zero-pressure gas electromagnetic valve to work, so that gas enters the venturi premixer through the zero-pressure gas electromagnetic valve and then enters the air inlet of the fan after being mixed with air, and the pre-mixing control before the fan is finished.
7. A pre-mix control system for a commercial gas cooker as claimed in claim 1, wherein: the commercial gas cooker front premixing controller adjusts the rotating speed of the fan according to a gas flow signal at the outlet of the zero-pressure gas electromagnetic valve, which is obtained by the gas flow detection unit, so that the suction force of the fan drives the zero-pressure gas electromagnetic valve to admit gas, the synchronous increase and decrease of the gas amount of the gas which is admitted along with the increase and decrease of the rotating speed of the fan are ensured, and the control of the gas electromagnetic valve is completed.
8. A pre-mix control system for a commercial gas cooker as claimed in claim 1, wherein: the commercial gas cooker front premixing controller controls the water feeding electromagnetic valve to be opened when the water temperature of the water tank is higher than a set temperature value according to a signal of the water tank temperature detection unit, and controls the water feeding electromagnetic valve to be closed when the water temperature of the water tank is lower than the set temperature value, so that the water feeding electromagnetic valve control is completed.
9. A pre-mix control system for a commercial gas cooker as claimed in claim 1, wherein: the communication end of the premixing controller in front of the commercial gas cooker is connected with a remote communication module, and the premixing controller in front of the commercial gas cooker realizes remote transmission of data through the remote communication module.
10. A pre-mix control system for a commercial gas cooker as claimed in claim 1, wherein: the premixing display screen kitchen range in front of the commercial gas kitchen range receives data transmitted by a premixing controller in front of the commercial gas kitchen range, and displays the current operation time length, the accumulated operation time length of the kitchen range, the water temperature of a water tank, the exhaust gas temperature, the instantaneous gas flow rate, the accumulated gas flow rate, the ignition flameout protection, the combustion power, the gas electromagnetic valve switch, the water supply electromagnetic valve switch and the fault.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011094192.9A CN112212364A (en) | 2020-10-14 | 2020-10-14 | Pre-mixing control system for commercial gas cooker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011094192.9A CN112212364A (en) | 2020-10-14 | 2020-10-14 | Pre-mixing control system for commercial gas cooker |
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| CN202011094192.9A Pending CN112212364A (en) | 2020-10-14 | 2020-10-14 | Pre-mixing control system for commercial gas cooker |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697000A (en) * | 2015-03-02 | 2015-06-10 | 广东美的厨房电器制造有限公司 | Gas stove |
| CN107559824A (en) * | 2016-06-30 | 2018-01-09 | 深圳市爱可机器人技术有限公司 | All-premixing burner and the cooking device for including it |
| CN210601743U (en) * | 2019-07-05 | 2020-05-22 | 合肥顺昌余热利用科技有限公司 | Automatic control and display system for commercial gas stove |
| CN111322614A (en) * | 2020-04-01 | 2020-06-23 | 合肥顺昌余热利用科技有限公司 | Front premixing burner for commercial gas stove |
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2020
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Application publication date: 20210112 |
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