Combustion control system of gas water heater or wall-hanging boiler and control method thereof
US10309687B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2017 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Jul 25, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N2225/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The embodiments of the present application disclose a combustion control system of a gas water heater or wall-hanging boiler, and a control method thereof. The system comprises: a flue gas channel consisted of a combustor, a heat exchanger and a stepless speed regulating fan and a smoke tube, which are connected sequentially; a control unit connected to a signal input end of the stepless speed regulating fan; a wind pressure sensor assembly that detects a pressure signal upstream of an impeller of the stepless speed regulating fan, a signal output end of the wind pressure sensor assembly being connected to the control unit; the control unit comprising a storage for storing a correspondence relationship between the pressure signal upstream of the stepless speed regulating fan and a thermal load of the combustor, and a controller that controls operation of the stepless speed regulating fan according to the correspondence relationship. The present application further regulates the rotational speed of the stepless speed regulating fan by detecting the pressure signal upstream of the impeller of the stepless speed regulating fan, thereby achieving a better wind-resistant performance of …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.