CN2929519Y - Wind volume detector for household gas burning range - Google Patents
Wind volume detector for household gas burning range Download PDFInfo
- Publication number
- CN2929519Y CN2929519Y CN 200620110234 CN200620110234U CN2929519Y CN 2929519 Y CN2929519 Y CN 2929519Y CN 200620110234 CN200620110234 CN 200620110234 CN 200620110234 U CN200620110234 U CN 200620110234U CN 2929519 Y CN2929519 Y CN 2929519Y
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- China
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- wind
- electric signal
- gas
- signal generator
- checkout gear
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Abstract
The utility model asks for the protection of a wind measuring checkout device for household gas appliances, wherein the wind measuring checkout device is equipped with wind-orbiculus and an electric signal generator, the wind-orbiculus is equipped on the gas passage of a wind machine used by the gas, the electric signal generator is equipped on the wheel shaft of the wind-orbiculus, the rotating speed of the wind-orbiculus is of a unit functional relation with the ventilation quantity L of the wind machine, namely V=F(L), the electric signal generator transfers the rotating speed V into the electric signal, which educes the controlling system for household appliances by wires, then the controlling system can adjust and control the wind machine according to the signal, thereby achieving the best effect of wind supply and gas distribution, which effectively makes the gas in the best burning situation to increase the burning efficiency, saves energy and lowers the content of harmful gas in waste gas.
Description
Technical field
The utility model relates to the air quantity detection technique, particularly relates to a kind of air quantity checkout gear that is used on the domestic gas apparatus (for example: forced-ventilated and pressure balanced type water heater, wall hanging stove).
Background technology
Forced-ventilated and the pressure balanced type gas heater of common air blast mode is to adopt the blower fan forced air supply to provide air (oxygen) to combustion system, reaches normal combustion.The intake of water heater need and advance rational proportion between the gas quantity, guarantees the fired state that being in of water heater is preferable, so what of intake directly influence combustion conditions, and one of the controller needs of water heater intake signal are accurately controlled distribution.Existing water heater mainly contains following two kinds to the detection of intake:
1. blast detects: produce blast at gas channel when utilizing blower fan work, make the microswitch action by leeway and mechanical lever, provide the working condition of signal of telecommunication notification controller control blower fan.For example disclosed patent: 99253805.X utilizes the heat exchanger top of water heater and the leeway promotion of exhaust outlet to open air door, promotes the signal that microswitch provides the blower fan operate as normal through lever construction.
2. blower fan feedback signal: when blower fan is worked, send set of pulses square wave, be generally a week two waveforms, the corresponding increase of high its frequency of the rotating speed of blower fan, its frequency can corresponding be measured the rotating speed of blower fan.
Above-mentioned the 1st kind of mode can only record the calm signal of wind, can not detect the size of air quantity.
The 2nd kind of mode (extraneous calm) when not having external force factor to disturb can calculate intake L=F (s) by rotating speed of motor, and wherein L is an intake, and s is a rotation speed of fan.Often have the phenomenon that extraneous wind-fall is irritated in actual applications, at this moment the rotating speed of blower fan is not the unique variable of intake just, and at this moment (s, p), wherein p is the blast of water heater air inlet to L=F.The blast of air inlet often changes and is unknowable.Therefore, only depend on rotating speed of motor can't detect intake quantitatively.We can confirm this conclusion by an experiment, as when blower fan normally moves, the exhaust outlet and the air inlet of water heater are all blocked, and intake of (the extraneous blast that pours in down a chimney of simulation equals the discharge pressure of fan of water heater) this moment should be zero.But motor still can rotate, and the rotation speed change of its blower fan is little.
Above-mentioned dual mode all can the reliable detection blower fan operate as normal whether, the rotating speed of the latter even detection blower fan that can be quantitative, but they all can not quantitatively detect intake, therefore can't provide parameter accurately for the adjusting distribution of automatic constant-temperature water heater.
Summary of the invention
At the weak point of above technology, the purpose of this utility model is to provide the air quantity checkout gear of gas appliances such as a kind of water heater, wall hanging stove, the intake of water heater is carried out reliable quantitative detection, for controller provides distribution signal accurately.
The technical solution of the utility model is as follows:
A kind of air quantity checkout gear of domestic gas apparatus, this air quantity checkout gear is made of wind wheel and electric signal generator, wind wheel is installed in the current path of blower fan of gas appliance, electric signal generator is installed on the wheel shaft of wind wheel, the rotating speed of wind wheel is with the L shaped one-tenth unit function relation of the ventilation of blower fan, be V=F (L), by electric signal generator rotating speed V be transformed into the signal of telecommunication and export to the control system of gas appliance by drawing lead.
The electric signal generator of this air quantity checkout gear can be the electric signal generator of an output analog quantity, or the electric signal generator of an output switching value.Described electric signal generator output analog quantity can be voltage signal, current signal and the a-c cycle signal of AC and DC.Described electric signal generator output switching value can be that level signal also can be a pulse wave signal.
The utility model is owing to install an air quantity checkout gear in the gas channel of blower fan, can be by the conversion of " rotating speed-signal of telecommunication ", reflect intake truly, by electric signal generator rotating speed V is transformed into the signal of telecommunication and is transferred to control system, control system can be according to this signals-modulating blower fan, thereby reaches best air feed and distribution effect, make combustion gas be in optimal combustion state all the time effectively, thereby the raising efficiency of combustion, energy savings reduces content of harmful gas in the waste gas.Therefore, the utility model is an efficient apparatus of producing economizing type, environment-friendly type water heater.
Description of drawings
Fig. 1 is the structural representation of a specific embodiment of the utility model.
Fig. 2 is the schematic diagram of the another kind of implementation of this air quantity checkout gear.
The specific embodiment
Referring to Fig. 1, this air quantity checkout gear has adopted a video card fan as the air quantity detection part, is installed in the air inlet place (the blower fan part that this figure has only drawn domestic gas ware) of domestic gas ware blower fan 1.The flabellum of video card fan is the wind wheel 2 of checkout gear, is installed in the electric signal generator 4 that axial flow motor on the fan shaft is an analog quantity, and electric signal generator 4 is drawn lead 3 and gone to be connected with the control system of domestic gas ware.When blower fan 1 work, the air-flow L that blower fan 1 produces drives wind wheel 2 rotations, promptly has the signal of telecommunication to export to control system on the lead 3 of the axial flow motor on the fan shaft, changes the rotating speed V of blower fan 1, and its signal of telecommunication is also along with producing corresponding the variation.Stop up current path when blower fan 1 running, blower fan 1 still turns round, owing to do not have air-flow in the current path, the wind wheel 2 of air quantity checkout gear stops operating, and the signal of telecommunication of output is zero.
Fig. 2 is the schematic diagram of the another kind of implementation of this air quantity checkout gear, what the electric signal generator of this device adopted is the switching signal form, form by a magnetic pole 41 and a Hall switch 42, magnetic pole 41 is arranged on the wheel shaft of wind wheel 2, rotate with wind wheel 2, Hall switch 42 is fixed in the current path 5 of blower fan (this figure current path 5 that only shows, the whole gas appliance that do not draw and blower fan wherein), and the position is relative with magnetic pole 41, and draw lead 3, go connection control system.Wind wheel 2 is installed in the current path 5 by wheel shaft.When air-flow L process current path 5, wind wheel 2 rotations, drive magnetic pole 41 rotations with the wheel shaft of wind wheel 2, when the magnetic field 41 of rotation acts on the Hall switch 42, the output of Hall switch 42 will be exported the pulse train waveform, and pulse frequency is relevant with rotating speed V only, rotating speed V is the unit function of air quantity L, therefore control system just can be determined the size of air quantity L in the current path 5, thereby provide distribution signal accurately by the pulse frequency of acoustic wind amount detecting device output.
Therefore, this use is novel can be reliably and detect gas flow in the current path of gas appliance accurately, for the constant-temperature hot water device is accurately controlled combustion gas and the air mixing ratio has supplied a requisite checkout gear.
Certainly; above-mentioned two kinds of embodiments are not the restriction to protection domain of the present utility model; adopt the disclosed various electric signal generators of prior art to be installed on the wheel shaft of wind wheel and constitute checkout gear; be installed on the current path of blower fan of burning appliance and obtain the signal of telecommunication, all be interpreted as the protection domain of this patent.
Claims (4)
1, a kind of air quantity checkout gear of domestic gas apparatus, it is characterized in that: this air quantity checkout gear is made of wind wheel (2) and electric signal generator (4), wind wheel (2) is installed in the current path of blower fan (1) of gas appliance, and electric signal generator (4) is installed on the wheel shaft of wind wheel (2).
2, the air quantity checkout gear of domestic gas apparatus according to claim 1 is characterized in that: described electric signal generator (4) is the electric signal generator of an output analog quantity or the electric signal generator of output switching value.
3, the air quantity checkout gear of domestic gas apparatus according to claim 2 is characterized in that: described electric signal generator output analog quantity can be voltage signal, current signal and the a-c cycle signal of AC and DC.
4, the air quantity checkout gear of domestic gas apparatus according to claim 2 is characterized in that: described electric signal generator output switching value can be that level signal also can be a pulse wave signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110234 CN2929519Y (en) | 2006-03-29 | 2006-03-29 | Wind volume detector for household gas burning range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620110234 CN2929519Y (en) | 2006-03-29 | 2006-03-29 | Wind volume detector for household gas burning range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929519Y true CN2929519Y (en) | 2007-08-01 |
Family
ID=38307901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620110234 Expired - Fee Related CN2929519Y (en) | 2006-03-29 | 2006-03-29 | Wind volume detector for household gas burning range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929519Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729101A (en) * | 2015-01-26 | 2015-06-24 | 艾欧史密斯(中国)热水器有限公司 | Combustion control system for gas water heater or wall-hanging stove and control method thereof |
-
2006
- 2006-03-29 CN CN 200620110234 patent/CN2929519Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729101A (en) * | 2015-01-26 | 2015-06-24 | 艾欧史密斯(中国)热水器有限公司 | Combustion control system for gas water heater or wall-hanging stove and control method thereof |
| CN104729101B (en) * | 2015-01-26 | 2017-06-30 | 艾欧史密斯(中国)热水器有限公司 | Gas heater or wall-hung boiler combustion control system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |