CN104515308A - Improved structure of air flow monitoring device for wall-hanging stove - Google Patents
Improved structure of air flow monitoring device for wall-hanging stove Download PDFInfo
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- CN104515308A CN104515308A CN201310462208.0A CN201310462208A CN104515308A CN 104515308 A CN104515308 A CN 104515308A CN 201310462208 A CN201310462208 A CN 201310462208A CN 104515308 A CN104515308 A CN 104515308A
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Abstract
The invention discloses an improved structure of an air flow monitoring device for a wall-hanging stove. The improved structure is provided with two wind pressure pipes which are communicated with a negative pressure cavity and a fan drift, a positive pressure cavity and a fan drift of the air flow monitoring device respectively, and a connection part (namely negative pressure sampling opening) for connecting a negative pressure cavity wind pressure pipe with the fan drift is closer to a fan outlet (namely positive pressure sampling opening) than a connection part for connecting a positive pressure cavity wind pressure pipe with the fan drift; the pressure tested by the positive pressure sampling opening is used as positive and negative pressure difference value reference; the tested pressure difference value is unlikely to be affected by external pressure, so that potential risk produced by error operation of a wind pressure switch caused by a pressure difference judgment structure of the air flow monitoring device due to the influence of the external weather is avoided.
Description
Technical field
The present invention relates to a kind of wall-hung boiler air-flow supervising device, particularly relate to a kind of structure-improved simultaneously can detecting the wall-hung boiler air-flow supervising device of positive/negative-pressure.
Background technology
Family's air suspended type wall-hung boiler that current commercial type uses is forced-ventilated structure, air-flow supervising device is all equipped in the wall-hung boiler of this kind of structure, be generally blast switch, this blast switch usually wall-hung boiler start before, start time and start after normal work in carry out the testing of blast all constantly, to guarantee the safe operation of wall-hung boiler.When external wind presses through the normal usage energy having influence on greatly wall-hung boiler, this blast switch can detect the pressure in the cavity of wall-hung boiler combustion chamber, therefore can ensure that wall-hung boiler runs well when fired state is excellent, avoids producing start by mistake.
Currently available technology Wind pressure switch is only provided with a wind pressure sampling mouth usually, and namely only between blast switch and fan air channel, be only provided with a wind-pressure tube, it only can detect malleation or negative pressure like this.When adopting detecting malleation, by vacant for negative pressure mouth then for acquiescence negative pressure mouth detects ambient pressure; When adopting detecting negative pressure, by vacant for malleation mouth then for acquiescence malleation mouth detects ambient pressure.Above-mentioned two kinds of modes are all take ambient pressure as judgment standard, and ambient pressure is usually very easily by the impact of weather environment, as strong wind weather etc., and above-mentioned two kinds of modes all accurately can not detect the pressure in wall-hung boiler cavity, therefore pressure difference measures unstable, the easy result of determination affecting air-flow supervising device, causes blast switch start by mistake, thus produces potential danger.
Summary of the invention
In order to overcome above-mentioned technological deficiency; the invention provides a kind of structure-improved of wall-hung boiler air-flow supervising device, this structure energy Simultaneously test positive/negative-pressure, and with the wall-hung boiler enclosure interior pressure measured for malleation benchmark; be not subject to pressure outside impact, better can protect the normal operation of wall-hung boiler.
The present invention in order to solve the problems of the technologies described above adopted technical scheme is:
A kind of structure-improved of wall-hung boiler air-flow supervising device, comprise air-flow supervising device, this air-flow supervising device location and installation outside wall-hung boiler case inside and combustion chamber cavity between, be provided with the first wind-pressure tube and the second wind-pressure tube, this the first wind-pressure tube one end is communicated with the negative pressure cavity of air-flow supervising device, and the other end is communicated with the air channel of blower fan; This second wind-pressure tube one end is communicated with the malleation chamber of air-flow supervising device, and the other end is communicated with the air channel of blower fan; One end of first wind-pressure tube connection fan air channel is communicated with the air outlet of one end closer to blower fan of fan air channel than the second wind-pressure tube, and this air-flow supervising device is using the second wind-pressure tube blast that place records as positive/negative-pressure different base.
Described air-flow supervising device is blast switch.
Advantageous Effects of the present invention is: this structure-improved is provided with negative pressure cavity and the fan air channel that two wind-pressure tubes are communicated with air-flow supervising device respectively, malleation chamber and fan air channel, and be communicated with negative pressure cavity wind-pressure tube and fan air channel connectivity part (i.e. sampling below atmospheric pressure mouth) than be communicated with malleation chamber wind-pressure tube and fan air channel connectivity part closer to fan outlet (i.e. malleation sample tap), its with malleation sample tap institute measuring pressure for positive/negative-pressure different base, institute's pressure measurement difference is not susceptible to outside pressure, avoid occurring affecting because of ambient weather thus causing the pressure reduction decision structure of air-flow supervising device, cause blast switch start by mistake, thus generation potential danger.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the principle schematic at sample tap A place in Fig. 1;
Fig. 3 is that the present invention monitors schematic flow sheet.
Detailed description of the invention
The present invention is described in further detail for composition graphs 1 to Fig. 3.
A kind of structure-improved of wall-hung boiler air-flow supervising device, comprise air-flow supervising device 1, this air-flow supervising device location and installation inside wall-hung boiler housing 2 and outside combustion chamber cavity 3 between, be provided with the first wind-pressure tube 4 and the second wind-pressure tube 5, this the first wind-pressure tube one end is communicated with the negative pressure cavity of air-flow supervising device, and the other end is communicated with the air channel of blower fan 6; This second wind-pressure tube one end is communicated with the malleation chamber of air-flow supervising device, and the other end is communicated with the air channel of blower fan; One end of first wind-pressure tube connection fan air channel is communicated with the air outlet 7 of one end closer to blower fan of fan air channel than the second wind-pressure tube, and this air-flow supervising device is using the second wind-pressure tube blast that place records as positive/negative-pressure different base.Wherein said air-flow supervising device 1 is blast switch.
Operation principle is as described below: because the air channel of blower fan 6 is communicated with the flue leading to outdoor, and first wind-pressure tube 4 one end is communicated with the negative pressure cavity of air-flow supervising device, and the other end is communicated with the air channel of blower fan; Second wind-pressure tube 5 one end is communicated with the malleation chamber of air-flow supervising device, and the other end is communicated with the air channel of blower fan, and the first wind-pressure tube 4 is communicated with fan air channel one end is communicated with air outlet 7 place of fan air channel one end closer to blower fan 6 than the second wind-pressure tube 5.Therefore the first wind-pressure tube 4 is sampling below atmospheric pressure mouth with fan air channel connectivity part, and the second wind-pressure tube 5 is malleation sample tap with fan air channel connectivity part, and the waste gas flowed out in combustion chamber cavity 3 flows through malleation sample tap and sampling below atmospheric pressure mouth successively through the air channel of blower fan 6.With the benchmark of malleation sample tap institute measuring pressure for calculating pressure reduction in design of the present invention.
When the wind-force of outdoor generation instability, the blast that this wind-force is transmitted by flue and fan air channel is also unstable, now sampling below atmospheric pressure mouth place record blast can depart from normal condition under value, and the blast that now malleation sample tap place records is the pressure of wall-hung boiler enclosure interior, pressure is comparatively stable herein, excessively can not be affected by pressure outside, not go out surveyed blast like sampling below atmospheric pressure mouth and be very easily affected by the external environment.Therefore positive/negative-pressure difference very significantly can reflect whether blast switch normally works.
As excessive in worked as outdoor wind-force, namely when the blast that transmitted by flue and fan air channel of wind-force is excessive, the blast at sampling below atmospheric pressure mouth place will (waste gas of combustion chamber air-out and extraneous air intake be resisted mutually) less than normal than normal value, and the blast now measured by malleation sample tap is stablized, therefore positive/negative-pressure difference will be less than the positive/negative-pressure difference of mensuration under normal circumstances, when being less than the rated value that system is determined, blast switch start will close fuel gas path, avoids occurring tempering, phenomenon that flame-out, flame overflows and hinders user normally to use from flame etc.
After wall-hung boiler energising, air-flow supervising device 1 first carries out self-inspection, to determine whether blast switch closes: if blast switch close its inner airless by time, then blower and water pump in wall-hung boiler starts; If blast switch its inside not closed have air-flow by time, then warning device report to the police to show mechanical disorder.
After blower and water pump all starts, whether air-flow supervising device 1 continues to detect blast switch and disconnects, namely whether blast switch inside has air-flow to pass through: when blast switch do not disconnect its inside have air-flow by time, then the action of lighting a fire and opening gas valve is carried out in wall-hung boiler combustion chamber; Do not have air-flow to pass through when blast switch disconnects its inside, or when the blocked air-flow of blast switch is too small, then warning device is reported to the police to show mechanical disorder.
Claims (2)
1. the wall-hung boiler structure-improved of air-flow supervising device, comprise air-flow supervising device (1), this air-flow supervising device location and installation is between wall-hung boiler housing (2) inner side and combustion chamber cavity (3) outside, it is characterized in that: be provided with the first wind-pressure tube (4) and the second wind-pressure tube (5), this the first wind-pressure tube one end is communicated with the negative pressure cavity of air-flow supervising device, and the other end is communicated with the air channel of blower fan (6); This second wind-pressure tube one end is communicated with the malleation chamber of air-flow supervising device, and the other end is communicated with the air channel of blower fan; One end of first wind-pressure tube connection fan air channel is communicated with the air outlet (7) of one end closer to blower fan of fan air channel than the second wind-pressure tube, and this air-flow supervising device is using the second wind-pressure tube blast that place records as positive/negative-pressure different base.
2. the structure-improved of wall-hung boiler air-flow supervising device according to claim 1, is characterized in that: described air-flow supervising device (1) is blast switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462208.0A CN104515308A (en) | 2013-09-30 | 2013-09-30 | Improved structure of air flow monitoring device for wall-hanging stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462208.0A CN104515308A (en) | 2013-09-30 | 2013-09-30 | Improved structure of air flow monitoring device for wall-hanging stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104515308A true CN104515308A (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310462208.0A Pending CN104515308A (en) | 2013-09-30 | 2013-09-30 | Improved structure of air flow monitoring device for wall-hanging stove |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454988A (en) * | 2019-08-06 | 2019-11-15 | 青岛澳柯玛生活电器有限公司 | A kind of gas heater with blast gauge |
| CN110822701A (en) * | 2019-11-21 | 2020-02-21 | 青岛澳柯玛智能家居有限公司 | Gas water heater with water leakage alarm system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2429767Y (en) * | 2000-07-10 | 2001-05-09 | 常州市泉峰热水器厂 | Cooker hood |
| EP1533579A2 (en) * | 2003-11-24 | 2005-05-25 | Gerdes OHG | Pressure differential switching device for switching the power of hydraulically controlled fluid heaters |
| CN202549714U (en) * | 2012-04-28 | 2012-11-21 | 广州迪森家用锅炉制造有限公司 | Leeway switch pressure acquisition device of fuel gas heating water heater |
-
2013
- 2013-09-30 CN CN201310462208.0A patent/CN104515308A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2429767Y (en) * | 2000-07-10 | 2001-05-09 | 常州市泉峰热水器厂 | Cooker hood |
| EP1533579A2 (en) * | 2003-11-24 | 2005-05-25 | Gerdes OHG | Pressure differential switching device for switching the power of hydraulically controlled fluid heaters |
| CN202549714U (en) * | 2012-04-28 | 2012-11-21 | 广州迪森家用锅炉制造有限公司 | Leeway switch pressure acquisition device of fuel gas heating water heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454988A (en) * | 2019-08-06 | 2019-11-15 | 青岛澳柯玛生活电器有限公司 | A kind of gas heater with blast gauge |
| CN110822701A (en) * | 2019-11-21 | 2020-02-21 | 青岛澳柯玛智能家居有限公司 | Gas water heater with water leakage alarm system |
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Application publication date: 20150415 |
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| RJ01 | Rejection of invention patent application after publication |