Gas water heater and control method and system thereof

A technology for gas water heaters and control systems, applied in fluid heaters, lighting and heating equipment, etc., can solve problems such as changes, differences in gas calorific value, and increased costs such as manpower, material resources, and financial resources, so as to avoid flameout and improve versatility. , the effect of improving combustion efficiency

Active Publication Date: 2015-03-18
HAIER GRP CORP +1
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the area-specific gas water heater solves the problem of the difference in gas calorific value in different regions, the calorific value of the gas in the same area will also change at different times and under different conditions. At this time, the area-specific water heater will also have calorific value. The above-mentioned pr

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gas water heater and control method and system thereof
  • Gas water heater and control method and system thereof
  • Gas water heater and control method and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] The technical solution of the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0036] First, briefly explain the design starting point of the present invention:

[0037] Each gas water heater corresponds to a unique optimal combustion curve, which reflects the ratio between the combustion heat of gas and the air volume of the fan. If the water heater burns in accordance with the ratio of the combustion heat determined by the optimal combustion curve to the air volume of the fan, the gas efficiency is the highest, and the exhaust gas content of combustion is the least. The heat of gas combustion is related to the amount of gas and the calorific value of combustion. The amount of gas depends on the opening of the gas proportional valve, and the opening of the gas proportional valve is controlled by the PWM signal. Therefore, the prior art usually The optimal combustion curve is also regarded as the propor...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a gas water heater and a control method and system thereof. The control system of the gas water heater comprises a gas source proportional valve arranged on a gas source supply pipeline, and a controller controlling the opening degree of the gas source proportional valve, wherein the controller is electrically connected with the gas source proportional valve; the controller comprises a PWM (pulse width modulation) signal generating circuit for generating the control signals of the gas source proportional valve, and a current regulating network circuit which is composed of at least two selectively-switching current regulating branch circuits; the common input end of the at least two selectively-switching current regulating branch circuits is electrically connected with the output end of the PWM signal generating circuit, and the common output end of the at least two selectively-switching current regulating branch circuits is electrically connected with the control signal input end of the gas source proportional valve. By means of the current regulating network circuit, the gas water heater can automatically adapt to gas sources of different heat values to achieve optimization of burning performance.

Description

technical field [0001] The invention belongs to the technical field of water heater and its control, in particular, it relates to a gas water heater and its control method and control system. Background technique [0002] The main component of natural gas used in gas water heaters is methane, and also contains a small amount of ethane, butane, pentane, carbon dioxide, carbon monoxide, hydrogen sulfide, etc. Due to different regions, the contents of methane and other gases in natural gas are also different, which makes the calorific value of natural gas in different regions vary greatly. The calorific value is different, the amount of gas required to produce the same heat is different, and the ratio of air volume and gas will also be different during the combustion process. However, the existing gas water heaters are generally designed and controlled for a gas source with a calorific value. Therefore, if the calorific value of the gas source changes, it is very easy to have ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F24H9/20
Inventor 徐金娟刘联产张鑫郑涛李键
Owner HAIER GRP CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap