CN105333463A - Combustion control method for gas appliance - Google Patents
Combustion control method for gas appliance Download PDFInfo
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- CN105333463A CN105333463A CN201410392434.0A CN201410392434A CN105333463A CN 105333463 A CN105333463 A CN 105333463A CN 201410392434 A CN201410392434 A CN 201410392434A CN 105333463 A CN105333463 A CN 105333463A
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- gas
- burner
- flame
- controlling combustion
- air blast
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Abstract
The invention relates to a combustion control method for a gas appliance. The combustion control method comprises the steps that a first total heating value needed by the gas appliance is calculated; the opening degree of a gas valve and the rotating speed of an air blower are controlled according to the first total heating value; and flames generated by a combustor are detected, and if no flame is detected, it is represented that a jump fire phenomenon or extinguishing occurs, and the opening degree of the gas valve and the rotating speed of the air blower are controlled according to a second total heating value at this moment to reduce the amount of gas and air supplied to the combustor. If the flames are detected again, it is represented that the jump fire phenomenon occurs in the last step, and otherwise the pressure of a gas source is insufficient. Therefore, the gas appliance can continue to work when the jump fire phenomenon occurs.
Description
Technical field
The present invention controls relevant with gas; Refer to a kind of method for controlling combustion of gas especially.
Background technology
Gas, compared to using the heating appliances of electric energy, has advantages such as saving the energy, the thermal efficiency are high, real-time use, has been widely used the field in heating.In order to more increase the thermal efficiency of gas, the gas of forced air supply type is then had to come out.
Figure 1 shows that the gas of existing forced air supply type, include burner 10, gas valve 12, air blast 14, flame inductive needle 16 and a controller 18.This burner 10 is for the gas that burns, and this gas valve 12 is arranged at and is communicated on a gas pipeline 20 of this burner 10, and this gas pipeline 20 is communicated with a gas source G, and this gas valve 12 is controlled gas amounts regulated for transporting to this burner 10.This air blast 14 is communicated with this burner 10, and it is the controlled air capacity regulated for transporting to burner 10.This flame inductive needle 16 is in the flame for sensing the generation of this burner 10.This controller 18 is electrically connected this gas valve 12, this air blast 14 and this flame inductive needle 16.This controller 18 controls this gas valve 12 and this air blast 14 according to set one heating total value, transmits a certain proportion of gas amount and air capacity to this burner 10, to obtain preferably efficiency of combustion.
So, when the pressure of this gas source G is on the low side, the air capacity transmitted because of this air blast 14 remains unchanged, and air capacity will be made more than gas amount, so the flame causing this burner 10 to export is presented " jump fire " phenomenon, that is flame will away from this burner 10 when comparatively gas pressure is normal.Along with this gas source G pressure durations reduces, flame will continue away from this burner 10, make flame cannot touch flame inductive needle 16 (Fig. 2 reference).In this case, this controller 18, because receiving the signal of telecommunication of flame inductive needle 16, is thus judged to be that gas is exhausted, controls this gas valve 12 and blocks gas, and so, in fact this gas source G is not that gas is exhausted, and is only that gas pressure is on the low side.This situation normally occurs in gas source when being liquid barreled gas, and the gas capacity of coal in gas cylinder is not enough; Or when gas source is natural gas, caused by too much gas uses simultaneously and the gas pressure in source is on average disperseed.
For gas heater, if that gas source G pressure occurs is on the low side in the process using hot water, produces jump fire phenomenon, cause this controller 18 to block gas, by cause user be absorbed in without hot water can awkward situation.Therefore the design of existing forced air supply type gas 1 is not attained perfect yet, still have much room for improvement part.
Summary of the invention
In view of this, object of the present invention, for providing a kind of method for controlling combustion of gas, can allow gas still can continue to use when the pressure in gas source is on the low side.
Edge is to reach above-mentioned purpose, the method for controlling combustion of gas provided by the present invention, wherein this gas includes a burner in order to the gas that burns, one gas valve is its aperture of controlled change to regulate the gas amount for transporting to this burner, and an air blast is that its rotating speed of controlled change is with the air capacity regulating confession to transport to this burner; This method for controlling combustion comprises the following step: A, calculating one first heating total value needed for gas; B, according to this first heating total value control the aperture of this gas valve and the rotating speed of this air blast; C, detect the flame that this burner produces, if do not detect flame, control the aperture of this gas valve and the rotating speed of this air blast according to one second heating total value, wherein this second heating total value is less than this first heating total value.
When effect of the present invention is that gas source pressure is on the low side, can continue to use gas, unlikely to be mistaken for gas when gas source pressure is on the low side exhausted, and cannot re-use gas.
Accompanying drawing explanation
Fig. 1 is existing gas schematic diagram.
Fig. 2 is existing gas generation jump fire phenomenon schematic diagram.
Fig. 3 is the gas heater schematic diagram that a preferred embodiment of the present invention is applied.
Fig. 4 is the method for controlling combustion flow chart of the gas of a preferred embodiment of the present invention.
[symbol description]
[existing]
1 gas
10 burner 12 gas valve 14 air blasts
16 flame inductive needle 18 controller 20 gas pipelines
[the present invention]
2 gas heaters
22 heating unit 24 heat exchanger 242 heat absorbing sheets
244 water-supply-pipe 26 burner 28 gas pipelines
30 gas valve 32 air blasts 34 are lighted a fire inductive needle
36 oral siphon 38 outlet pipe 40 taps
42 detecting modules 422 enter water temperature monitoring device 424 and go out water temperature detector
426 current detector 44 controller 442 memories
46 alarm unit G gas sources
Detailed description of the invention
For can the present invention be illustrated more clearly in, hereby lift preferred embodiment and coordinate diagram to be described in detail as follows, shown in please refer to the drawing 3, for the gas heater 2 that a preferred embodiment of the present invention is applied, include heating unit 22, oral siphon 36, outlet pipe 38, detecting module 42, controller 44 and an alarm unit 46.
This heating unit 22 includes heat exchanger 24, burner 26, gas pipeline 28, gas valve 30, air blast 32 and and to light a fire inductive needle 34.This heat exchanger has multiple heat absorbing sheet 242 and a water-supply-pipe 244 wears described heat absorbing sheet 242.This burner 26 is positioned at below this heat exchanger 24, heats this heat exchanger 24 for the gas that burns, and this burner 26 is communicated with this gas pipeline 28, and this gas pipeline 28 is communicated to a gas source G.This gas valve 30 is arranged on this gas pipeline 28, this gas valve 30 be can controlled unlatching or block the gas that passes through and change its valve aperture to regulate the gas amount passed through.This air blast 32 is communicated with this burner 26, its be controlled and change its running motor rotating speed to regulate the air capacity for transporting to this burner 26.This igniting inductive needle 34 is located near this burner 26, in order to light the gas exported from this burner 26 and the flame detecting the generation of this burner 26.
This oral siphon 36 and this outlet pipe 38, be communicated with the water-supply-pipe 244 of this heat exchanger 24 respectively, and this oral siphon 36 supplies water and injects, and the current injected export from this outlet pipe 38 through water-supply-pipe 244, and this outlet pipe 38 is communicated to a tap 40.
This detecting module 42 comprises one and enters water temperature monitoring device 422, and go out water temperature detector 424, current detector 426, described detector 422,424,426 are respectively used to the discharge going out water temperature and this oral siphon 36 entering water temperature, this outlet pipe 38 detecting this oral siphon 36.
This controller 44 is electrically connected this igniting inductive needle 34, this gas valve 30, this air blast 32 and this detecting module 42.This controller 44 controls this igniting inductive needle 34 and lights a fire, and detects this igniting inductive needle 34 and whether sense flame, and controls this gas valve 30 and this air blast 32.
This controller 44 has a memory 442, has multiple heating total value and corresponding gas amount controling parameters and rotating speed controling parameters in this memory 442.The corresponding gas amount controling parameters of each heating total value and rotating speed controling parameters.This controller 44 controls the aperture of this gas valve 30 and the rotating speed of this air blast 32, to reach certain air-fuel ratio according to gas amount controling parameters and rotating speed controling parameters.This controller 44 is according to the heating total value entered needed for coolant-temperature gage, leaving water temperature and discharge calculating burner 26 measured by this detecting module 42, in this memory 442, corresponding gas amount controling parameters and rotating speed controling parameters is captured by calculated heating total value, control this gas valve 30 to regulate gas amount and control the rotating speed of this air blast 32, reach leaving water temperature set by user to make leaving water temperature.
This alarm unit 46 is a display in the present embodiment, is electrically connected this controller 44, and for showing the information that this controller 44 exports, certainly, alarm unit 46 also can be a buzzer or display and buzzer and deposits.
By above-mentioned gas heater 2, can perform the method for controlling combustion of the gas shown in Fig. 4, the method comprises the following step:
This controller 44 controls this gas valve 30 and opens gas, and controls this igniting inductive needle 34 and light a fire, with the gas exported from this burner 26 that ignites.
According to the leaving water temperature set by user, total value is heated in 1 needed for calculating first, then in this memory 442, captures corresponding controling parameters, with the rotating speed of the aperture and this air blast 32 that control this gas valve 30 according to this first heating total value.
Detect burner 26 through this igniting inductive needle 34 and whether have generation flame, if having, the pressure representing current gas source G is normal, and maintains gas valve 30 and air blast 32 normal operation; If nothing, the pressure representing current gas source G is on the low side or not enough, the situation of jump fire or fray-out of flame may be produced, now, this controller 44 first controls this gas valve 30 and blocks gas, and control this air blast 32 and to keep on the go and in through one first scheduled time, then control this gas valve 30 and open and the gas exported from this burner 26 that ignites.The object that this air blast 32 is kept on the go is gas and the carbon monoxide of the remnants in this gas heater 2 emptying, avoids remaining gas and carbon monoxide to leak and causes personnel uncomfortable.
After gas ignites, capture corresponding controling parameters according to one second heating total value in this memory 442, with the rotating speed of the aperture and this air blast 32 that control this gas valve 30, wherein, this second heating total value is 70% of the first heating total value in the present embodiment.In other words, namely control this gas valve 30 and reduce aperture and reduce the rotating speed of this air blast 32, to obtain lower gas amount and air capacity.In practice, also when not detecting flame, gas can not blocked, and this second heating total value of direct basis controls the aperture of this gas valve 30 and the rotating speed of this air blast 32, to obtain lower gas amount and air capacity.
Detect burner 26 through this igniting inductive needle 34 again and whether have generation flame, if there is flame, the pressure representing current gas source G is on the low side but not exhausted yet, now, this controller 44 sends one first information warning to this alarm unit 46, on the low side with the pressure of reminding user gas source G.If without flame, represent the gas of gas source G exhausted or close to exhausted, cannot gas for this burner 26 or again produce the existing picture of jump fire, now this controller 44 controls this gas valve 30 and blocks gas, and control this air blast 32 and to keep on the go and in stopping this air blast 32 to operate after one second scheduled time, with remaining gas and carbon monoxide in this gas heater 2 emptying.Meanwhile, this controller 44 sends one second information warning to this alarm unit 46, and with the gas of reminding user gas source G, exhausted or gas pressure is not enough to re-use for burner 26.
Be, for gas heater 2, method for controlling combustion of the present invention is described in above-mentioned, except gas heater 2, method for controlling combustion of the present invention also can be applicable to the gas of any forced air supply type.
Through method for controlling combustion of the present invention, user can be allowed on the low side at the pressure in gas source, but still can for burner time, continue to light flame, continue gas for user, effectively improve existing gas and user cannot be allowed to re-use the disappearance of gas when the pressure in gas source is on the low side.It will be further appreciated that, the pressure utilizing the first information warning and the second information warning effectively can differentiate gas source is on the low side or exhausted state.
The foregoing is only the better possible embodiments of the present invention, such as apply description of the present invention and the equivalence change for it of right institute, ought to be included in the scope of the claims of the present invention.
Claims (8)
1. the method for controlling combustion of a gas, it is characterized in that, this gas includes a burner in order to the gas that burns, one gas valve is its aperture of controlled change to regulate the gas amount for transporting to this burner, and an air blast is that its rotating speed of controlled change is with the air capacity regulating confession to transport to this burner; This method for controlling combustion comprises the following step:
A, calculating one first heating total value needed for gas;
B, according to this first heating total value control the aperture of this gas valve and the rotating speed of this air blast; And
C, detect the flame that this burner produces, if do not detect flame, control the aperture of this gas valve and the rotating speed of this air blast according to one second heating total value, wherein this second heating total value is less than this first heating total value.
2. the method for controlling combustion of gas as claimed in claim 1, it is characterized in that, step C first controls this gas valve to block gas when not detecting flame, control this gas valve again and open gas and the gas exported from this burner that ignites, control the aperture of this gas valve and the rotating speed of this air blast according to this second heating total value more afterwards.
3. the method for controlling combustion of gas as claimed in claim 2, it is characterized in that, step C blocks after damp at this gas valve, control this air blast keep on the go and in through one first scheduled time with the after damp of emptying remnants, then control this gas valve and open and the gas exported from this burner that ignites.
4. the method for controlling combustion of gas as claimed in claim 1, is characterized in that, comprise the flame again detected this burner and produce after step C, and send one first information warning when detecting flame.
5. the method for controlling combustion of gas as claimed in claim 1, is characterized in that, include a step D after step C, is the flame that this burner of detecting produces, and controls this gas valve blocking-up gas when not detecting flame.
6. the method for controlling combustion of gas as claimed in claim 5, is characterized in that, also comprises to control this air blast and to keep on the go and in stopping with the after damp of emptying remnants through one second scheduled time after step D.
7. the method for controlling combustion of gas as claimed in claim 5, it is characterized in that, step D is included in when not detecting flame and sends one second information warning.
8. the method for controlling combustion of gas as claimed in claim 1, it is characterized in that, this gas is a gas heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410392434.0A CN105333463B (en) | 2014-08-11 | 2014-08-11 | The method for controlling combustion of gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410392434.0A CN105333463B (en) | 2014-08-11 | 2014-08-11 | The method for controlling combustion of gas |
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| Publication Number | Publication Date |
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| CN105333463A true CN105333463A (en) | 2016-02-17 |
| CN105333463B CN105333463B (en) | 2018-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410392434.0A Active CN105333463B (en) | 2014-08-11 | 2014-08-11 | The method for controlling combustion of gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI620897B (en) * | 2017-11-28 | 2018-04-11 | 南開科技大學 | Gas water heater adjustment system and method thereof |
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| CN1607363A (en) * | 2003-10-15 | 2005-04-20 | 中山华帝燃具股份有限公司 | Domestic gas instantaneous water heater capable of realizing gas-air proportional control |
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| CN101839552A (en) * | 2009-03-18 | 2010-09-22 | 中山市华美骏达电器有限公司 | Blowing type gas water heater constant temperature control method and control system thereof |
| CN201662202U (en) * | 2010-03-15 | 2010-12-01 | 钟献开 | Fully automatic gas water heater |
| CN102235755A (en) * | 2010-04-23 | 2011-11-09 | 关隆股份有限公司 | Water temperature control method and device for water heater |
| CN103090545A (en) * | 2011-10-31 | 2013-05-08 | 关隆股份有限公司 | Heating regulating and controlling method of gas combusting tool |
| CN103615798A (en) * | 2013-11-04 | 2014-03-05 | 广东万和新电气股份有限公司 | Fully premixed combustion gas heating water heater |
| CN103672951A (en) * | 2012-08-31 | 2014-03-26 | 林光湧 | Safe combustion monitoring method and system |
| CN103836802A (en) * | 2012-11-27 | 2014-06-04 | 关隆股份有限公司 | Hypoxia protection device |
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2014
- 2014-08-11 CN CN201410392434.0A patent/CN105333463B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607363A (en) * | 2003-10-15 | 2005-04-20 | 中山华帝燃具股份有限公司 | Domestic gas instantaneous water heater capable of realizing gas-air proportional control |
| CN1892143A (en) * | 2005-07-08 | 2007-01-10 | 海尔集团公司 | Anti-burst-burning gas water-heater |
| CN101839552A (en) * | 2009-03-18 | 2010-09-22 | 中山市华美骏达电器有限公司 | Blowing type gas water heater constant temperature control method and control system thereof |
| CN201662202U (en) * | 2010-03-15 | 2010-12-01 | 钟献开 | Fully automatic gas water heater |
| CN102235755A (en) * | 2010-04-23 | 2011-11-09 | 关隆股份有限公司 | Water temperature control method and device for water heater |
| CN103090545A (en) * | 2011-10-31 | 2013-05-08 | 关隆股份有限公司 | Heating regulating and controlling method of gas combusting tool |
| CN103672951A (en) * | 2012-08-31 | 2014-03-26 | 林光湧 | Safe combustion monitoring method and system |
| CN103836802A (en) * | 2012-11-27 | 2014-06-04 | 关隆股份有限公司 | Hypoxia protection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI620897B (en) * | 2017-11-28 | 2018-04-11 | 南開科技大學 | Gas water heater adjustment system and method thereof |
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| Publication number | Publication date |
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| CN105333463B (en) | 2018-10-26 |
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