CN-116293776-B - Combustion apparatus, ignition control method thereof, and readable storage medium

CN116293776BCN 116293776 BCN116293776 BCN 116293776BCN-116293776-B

Abstract

The invention provides a combustion apparatus, an ignition control method thereof, and a readable storage medium. The ignition control method comprises the steps of obtaining a fan power-rotating speed curve and a fan actual rotating speed under equal air quantity, obtaining fan target power according to the curve and the fan actual rotating speed, obtaining actual power and actual temperature of a fan, obtaining fan compensation power according to the actual power and the actual temperature of the fan, comparing the target power and the compensation power of the fan, adjusting the fan rotating speed when deviation exists between the target power and the compensation power of the fan, and executing ignition operation when the deviation between the target power and the compensation power of the fan is within a preset range. By the method, the ignition success rate can be improved.

Inventors

CHEN CHAO
ZHANG YUEWEN
LU MING
WANG QIONG

Assignees

威能(无锡)供热设备有限公司

Dates

Publication Date: 20260505
Application Date: 20230207

Claims (12)

1. A method for controlling ignition of a combustion apparatus including an ignition device and a blower fan is characterized in that the method includes: acquiring a fan power-rotating speed curve and a fan actual rotating speed under equal air quantity, and acquiring a fan target power according to the curve and the fan actual rotating speed; Acquiring the actual power and the actual temperature of the fan, and acquiring the fan compensation power according to the actual power and the actual temperature of the fan; Comparing the target power and the compensation power of the fan, and adjusting the rotating speed of the fan when the deviation exists between the target power and the compensation power of the fan; when the deviation of the target power and the compensation power of the blower is within a predetermined range, an ignition operation is performed.
2. The method of controlling ignition of a combustion apparatus according to claim 1, wherein the step of adjusting the fan speed when there is a deviation between the target power of the fan and the compensation power includes increasing the fan speed when the target power of the fan is greater than the compensation power, and decreasing the fan speed when the target power of the fan is less than the compensation power.
3. The method of controlling ignition of a combustion apparatus according to claim 1, wherein the step of adjusting the fan speed when there is a deviation between the target power and the compensation power of the fan comprises adjusting the fan speed according to the deviation between the target power and the compensation power of the fan.
4. The method for controlling ignition of a combustion apparatus according to claim 3, wherein said adjusting the fan speed based on the deviation of the target power and the compensation power of the fan comprises determining a fan speed regulation ratio based on the deviation and adjusting the fan speed accordingly.
5. The method of controlling ignition of a combustion apparatus according to claim 4, wherein the fan speed regulation ratio is proportional to a deviation of a target power and a compensation power of the fan.
6. The method of controlling ignition of a combustion apparatus according to claim 4, wherein when the deviation of the target power and the compensation power of the blower falls within a predetermined range, it is further judged whether the variation of the fan speed regulation ratio is less than or equal to a predetermined threshold value over a predetermined time interval, and if so, the ignition operation is performed.
7. The ignition control method of a combustion apparatus according to claim 1, wherein the fan compensation power is obtained by a calculation formula Pc= [100+ (Tn-Td) ]%. Times.C.times.Pa, where Pc is the fan compensation power, pa is the fan actual power, tn is the actual temperature of the fan, td is a predetermined temperature, and C is a compensation coefficient.
8. A combustion apparatus comprising a burner for burning a mixture of gas and air to generate heat, a heat exchanger for utilizing the heat generated by the burner to heat a water flow passing therethrough, a gas valve for controlling the supply of gas to the burner, a fan for driving the flow of gas, an ignition device for igniting the gas and air mixture, and a controller, characterized in that the controller is configured to, Acquiring a fan power-rotating speed curve and a fan actual rotating speed under equal air quantity, and acquiring a fan target power according to the curve and the fan actual rotating speed; Acquiring the actual power and the actual temperature of the fan, and acquiring the fan compensation power according to the actual power and the actual temperature of the fan; Comparing the target power and the compensation power of the fan, and adjusting the rotating speed of the fan when the deviation exists between the target power and the compensation power of the fan; and controlling the ignition device to ignite when the deviation of the target power and the compensation power of the fan is in a preset range.
9. The combustion apparatus of claim 8, wherein the controlling of the fan speed when the target power and the compensation power of the fan deviate comprises determining a fan speed regulation ratio according to the deviation of the target power and the compensation power of the fan, increasing the fan speed according to the fan speed regulation ratio when the target power of the fan is greater than the compensation power, and decreasing the fan speed according to the fan speed regulation ratio when the target power of the fan is less than the compensation power.
10. The combustion apparatus according to claim 9, wherein when the deviation of the target power and the compensation power of the fan is within a predetermined range, it is further judged whether the change of the fan speed regulation ratio is less than or equal to a predetermined threshold value over a predetermined time interval, and if so, ignition of the ignition device is controlled.
11. The combustion apparatus according to claim 8, wherein the fan compensation power is obtained by a calculation formula of Pc= [100+ (Tn-Td) ]%. Times.C.times.Pa, wherein Pc is the fan compensation power, pa is the fan actual power, tn is the actual temperature of the fan, td is a predetermined temperature, and C is a compensation coefficient.
12. A computer-readable storage medium having instructions stored thereon, which when executed by a processor implement the method of any of claims 1-7.

Description

Combustion apparatus, ignition control method thereof, and readable storage medium Technical Field The present disclosure relates to the field of combustion apparatus control, and more particularly, to a combustion apparatus, an ignition control method thereof, and a readable storage medium. Background Combustion devices typically meet domestic or industrial needs by igniting a combustion fuel to convert its chemical energy into thermal energy for release. Taking a gas water heating device as an example, the gas water heating device takes combustible gas as fuel, such as natural gas, city gas, liquefied gas, biogas and the like, and provides heat by combusting the combustible gas to meet the living demands of users, such as a gas water heater. When the gas water heater is started to operate, the gas proportional valve is adjusted to a proper opening degree to provide gas required by combustion, the fan is operated at a proper rotating speed to provide air quantity required by ignition, and the ignition device is triggered to ignite a mixture of the gas and the air. However, in actual use, the gas water heater may be interfered by back pressure generated by external upwind, negative pressure generated by indoor sealing, or smoke pipe blockage and other factors, so that the air quantity generated by the fan is not in the optimal ignition air quantity, thereby affecting the ignition speed, even being unsuccessful in ignition, and further reducing the use experience of users. Disclosure of Invention To overcome the problems in the related art, the present disclosure provides a combustion apparatus, an ignition control method thereof, and a readable storage medium. A first aspect of the embodiment of the disclosure provides an ignition control method of a combustion device, wherein the combustion device comprises an ignition device and a fan, the ignition control method comprises the steps of obtaining a fan power-rotating speed curve and a fan actual rotating speed under equal air quantity, obtaining fan target power according to the curve and the fan actual rotating speed, obtaining actual power and actual temperature of the fan, obtaining fan compensation power according to the actual power and the actual temperature of the fan, comparing the target power and the compensation power of the fan, adjusting the fan rotating speed when deviation exists between the target power and the compensation power of the fan, and executing ignition operation when deviation between the target power and the compensation power of the fan is within a preset range. In some embodiments, the fan speed is increased when the target power of the fan is greater than the compensation power, and the fan speed is decreased when the target power of the fan is less than the compensation power. In some embodiments, the fan speed is adjusted based on a deviation of the target power and the compensation power of the fan, for example, by determining a fan speed ratio based on the deviation and adjusting the fan speed accordingly. In some embodiments, the fan speed ratio is proportional to the deviation of the target power and the compensation power of the fan. In other embodiments, when the deviation of the target power and the compensation power of the fan is within a predetermined range, it is further determined whether the change in the fan speed regulation ratio is less than or equal to a predetermined threshold value over a predetermined time interval, and if so, an ignition operation is performed. In some embodiments, the fan compensation power is obtained by a calculation formula Pc= [100+ (Tn-Td) ]%. Times.C×Pa, where Pc is the fan compensation power, pa is the fan actual power, tn is the actual temperature of the fan, td is the predetermined temperature, and C is the compensation coefficient. A second aspect of the disclosed embodiments provides a combustion apparatus comprising a burner for combusting a mixture of gas and air to generate heat, a heat exchanger utilizing the heat generated by the burner to heat a water flow therethrough, a gas valve for controlling the supply of gas to the burner, a fan for driving the flow of gas, an ignition device for igniting the gas and air mixture, and a controller. The controller is configured to acquire a fan power-rotating speed curve and a fan actual rotating speed under equal air quantity, acquire fan target power according to the curve and the fan actual rotating speed, acquire actual power and actual temperature of the fan, acquire fan compensation power according to the actual power and the actual temperature of the fan, compare the target power and the compensation power of the fan, adjust the fan rotating speed when deviation exists between the target power and the compensation power of the fan, and control the ignition device to ignite when deviation between the target power and the compensation power of the fan is within a preset range. In some embodiments, a fan speed regulation rati