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Control strategy used for hot surface ignitor

A control strategy and igniter technology, which is applied in the direction of ignition by electric spark, controlled combustion, incandescent ignition, etc., can solve the problems of shortened life of hot surface igniter, damage to power supply cost, and increase, so as to improve competitiveness and application cost Control and improve the effect of the application range

Active Publication Date: 2019-12-20
CHONGQING LE MARK CERAMIC TECH CO LTD
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Through the ignition time control strategy of the present invention, the ignition time of the hot-side igniter can be controlled, which solves the problem that the customer wants to ignite in a short time, but the life of the hot-side igniter is likely to be shortened or even damaged, and the power supply cost is increased.

Method used

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  • Control strategy used for hot surface ignitor
  • Control strategy used for hot surface ignitor
  • Control strategy used for hot surface ignitor

Examples

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Effect test

example 1

[0073] Example 1: Application on household or commercial gas stoves and water heaters

[0074] When the gas cooker or water heater is in use, the time between ignition and successful ignition will arouse people's anxiety if it takes too long, and it is generally best to control it within 5 seconds.

[0075] However, in applications where there is no time requirement, in order to ensure that the hot surface igniter does not have a moderate service life, we generally use a constant voltage or constant power control method to make the igniter heat up slowly.

[0076] Combining the above, if you want the hot surface igniter to be well applied on the gas cooker or water heater, you must balance the two contradictions. Therefore, the three types of control strategies of variable voltage control, variable power control, and variable voltage plus variable power hybrid control in this embodiment can be used to ensure the service life of the hot surface igniter and shorten the ignition ...

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Abstract

The invention discloses a control strategy used for a hot surface ignitor. The working time of the hot surface ignitor is divided into tn time periods based on a hardware circuit and software algorithms of the hot surface ignitor, and in each time period, the output voltage or output power of the hardware circuit is adjusted through the software algorithms so that the hot surface ignitor can reachan expected temperature. By means of the control strategy provided by the invention, the ignition time of the hot surface ignitor can be easily controlled, and requirements of clients who need to perform ignition within a short time are met.

Description

technical field [0001] The invention relates to a control strategy, in particular to the temperature change control strategy of the hot surface igniter in the working process. Background technique [0002] Combustion equipment in regions / countries such as China usually adopts spark ignition. However, spark ignition has problems such as unreliable ignition, deflagration, and electromagnetic interference. The unreliable ignition is because spark ignition is easily affected by factors such as temperature, humidity, ignition gap, arc leakage, and pollution. Therefore, North American countries with many types of combustion equipment and more advanced combustion equipment application technology use more hot surface ignition technology. After the hot surface igniter reaches a high temperature in advance, the combustible gas / fuel oil enters the combustion area again, completely avoiding electric shock. Possible problems with sparks. [0003] The hot side igniter is factory-set wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23Q3/00
CPCF23Q3/006F23Q3/008F23Q7/00F23N5/20F23N2227/28F23Q7/22G05D23/1951
Inventor 雷彼得
Owner CHONGQING LE MARK CERAMIC TECH CO LTD
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