CN105402880A - Environment-friendly gas water heater - Google Patents
Environment-friendly gas water heater Download PDFInfo
- Publication number
- CN105402880A CN105402880A CN201510938479.8A CN201510938479A CN105402880A CN 105402880 A CN105402880 A CN 105402880A CN 201510938479 A CN201510938479 A CN 201510938479A CN 105402880 A CN105402880 A CN 105402880A
- Authority
- CN
- China
- Prior art keywords
- water heater
- gas water
- environmental
- heat exchanger
- protection gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/124—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using fluid fuel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/864—Removing carbon monoxide or hydrocarbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
The invention discloses an environment-friendly gas water heater. The environment-friendly gas water heater comprises a combustor, a heat exchanger, a water inlet pipe, a water outlet pipe, a draught fan, a proportional valve, an exhaust fume collecting hood and a master controller. The combustor is arranged in a combustion cavity. The draught fan and the proportional valve are connected with the master controller, and the air amount and the gas amount needed by combustion are controlled. The heat exchanger is arranged in a heat exchange cavity communicated with the combustion cavity. The water inlet pipe and the water outlet pipe are connected to the heat exchanger, and the exhaust fume collecting hood is installed on the heat exchange cavity. The environment-friendly gas water heater is characterized in that a catalysis module is arranged above the heat exchanger, and a first oxygen sensor connected with the master controller is arranged between the catalysis module and the heat exchanger. By means of the catalysis module and the first oxygen sensor, oxidization of CO and reduction of NOX can be efficiently converted at the same time, the content of harmful gas in smoke is effectively reduced, and the purpose of environment protection is achieved.
Description
Technical field
The present invention relates to fluid heater technical field, particularly relate to a kind of environment-protection gas water-heater.
Background technology
Be heated and produce principle restriction, inevitably containing the toxic gas such as carbon monoxide, nitrogen oxide in the flue gas that gas water heater working produces, these toxic gases are discharged into outdoor can cause certain environmental pollution.
One section of publication number is that the Chinese invention patent application of CN104713082A discloses a kind of gas heater staged combustion device.Gas heater staged combustion device, comprises burner and heat exchanger, is provided with at least one second-time burning platform between burner and heat exchanger, and described second-time burning platform comprises combustion gas oxidation catalyst.This burner by setting up second-time burning platform between burner and heat exchanger, the high-temperature heating second-time burning platform of primary combustion is utilized to make it reach higher temperature, when the emission of burner is through second-time burning platform, not clean-burning combustion gas and fuel gas are at high temperature transformed, namely second-time burning platform can carry out catalytic combustion to carbon monoxide, high-temp combustion is carried out to methane, thus reduces the discharge capacity of carbon monoxide and methane.
But existing this second-time burning platform can only reduce CO content in smoke, to NO by increasing catalytic module
xthe control of content does not have effect.In prior art, reduce NO
xthe means of content still rest on and use low NO to realize, and merely rely on low NO to reduce NO in flue gas
xcontent effect is unsatisfactory.
Summary of the invention
The object of the invention is to propose one can reduce CO, NO in flue gas simultaneously
xthe environment-protection gas water-heater of content.
For reaching above object, the present invention adopts following technical scheme.
A kind of environmental-protection gas water heater, comprise: burner, heat exchanger, water inlet pipe, outlet pipe, blower fan, proportioning valve, exhaust fume collecting hood and master controller, described burner is arranged in combustion chamber, described blower fan and proportioning valve are connected with master controller and air capacity needed for control combustion and gas quantity, described heat exchanger is arranged in the heat exchanging chamber that is communicated with combustion chamber, described water inlet pipe, outlet pipe connect on heat exchangers, and described exhaust fume collecting hood is arranged on heat exchanging chamber; It is characterized in that, side is provided with catalytic module on heat exchangers, is provided with the first lambda sensor be connected with master controller between catalytic module with heat exchanger.
Further illustrating as such scheme, side is provided with the second lambda sensor be connected with master controller on heat exchangers.
Further illustrating as such scheme, described catalytic module comprises: honeycomb support and the catalyst be coated on honeycomb support.
Further illustrating as such scheme, described honeycomb support is metallic carrier, is coated with catalyst layer at metal carrier surface.
Further illustrating as such scheme, described catalyst is noble metal catalyst, and comprising Pt, Pd, Rh or described catalyst is one or more in non-precious metal catalyst Ce, La, Ba, Sr, Zr, Cu, Mn oxide.
Further illustrating as such scheme, described honeycomb support is cellular ceramic substrate, and described catalyst deposit is in the hole of cellular ceramic substrate.
Further illustrating as such scheme, described burner is low NO.
Further illustrating as such scheme, the operating temperature of catalytic module controls between 120 to 150 DEG C, the oxygen concentration monitored when the first lambda sensor is lower than 10%, main controller controls blower fan improves rotating speed, strengthen intake, when the oxygen concentration that the first lambda sensor monitors higher than 11% time, main controller controls blower fan reduce rotating speed, reduce intake.
Further illustrating as such scheme,, the oxygen concentration difference that the oxygen concentration detected when the second lambda sensor and the first lambda sensor monitor is less than 0.5%, and when duration continues more than 10min, master controller sends alarm command, and the warning device be connected in main control sends alarm signal.
Compared with prior art, the invention has the beneficial effects as follows:
One, by arranging catalytic module and the first lambda sensor, oxidation and the NO of CO is made
xreduction can transform efficiently simultaneously, effectively reduce the content of pernicious gas in flue gas, reach the object of environmental protection.
Two, use low NO, effectively reduce NO in burning combustion process
xgeneration.
Three, by arranging the second lambda sensor, the content of oxygen in flue gas after catalytic treatment can be monitored, thus monitoring catalytic effect, when can effectively remind after catalyst failure.
Accompanying drawing explanation
Figure 1 shows that environmental-protection gas water heater structure schematic diagram provided by the invention.
Description of reference numerals:
1: burner, 2: heat exchanger, 3: water inlet pipe, 4: outlet pipe, 5: blower fan, 6: proportioning valve, 7: exhaust fume collecting hood, 8: master controller, 9: catalytic module, 10: the first lambda sensors, 11: the second lambda sensors.
Detailed description of the invention
Understand essence of the present invention better for convenience of those skilled in the art, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
As shown in Figure 1, a kind of environmental-protection gas water heater, comprise: burner 1, heat exchanger 2, water inlet pipe 3, outlet pipe 4, blower fan 5, proportioning valve 6, exhaust fume collecting hood 7 and master controller 8, described burner 1 is arranged in combustion chamber, described blower fan 5 and proportioning valve 6 are connected with master controller 8 and air capacity needed for control combustion and gas quantity, described heat exchanger 2 is arranged in the heat exchanging chamber that is communicated with combustion chamber, and described water inlet pipe 3, outlet pipe 4 are connected on heat exchanger 2, and described exhaust fume collecting hood 7 is arranged on heat exchanging chamber; It is characterized in that, above heat exchanger 2, be provided with catalytic module 9, between catalytic module 9 and heat exchanger 2, be provided with the first lambda sensor 10.
Wherein, described burner 1 is low NO.Described catalytic module 9 comprises: honeycomb support and the catalyst be coated on honeycomb support.In the present embodiment, preferred described honeycomb support is metallic carrier, is coated with catalyst layer at metal carrier surface.In other embodiments, described honeycomb support is cellular ceramic substrate, and described catalyst deposit is in the hole of cellular ceramic substrate.Type as catalyst can be noble metal catalyst, and as simple in Pt, Pd, Rh etc. or non-precious metal catalyst Ce, La, Ba, Sr, Zr, Cu, Mn etc. or composite oxides, as long as the oxidation that can meet CO of selecting of catalyst can meet NO again
xreduce.
In work, when the flue gas produced after burning is through catalytic module, under the effect of catalyst, make oxidation and the NO of CO
xreduction carry out simultaneously.Carry out needing having in flue gas the oxygen content that suitable while oxidation and induction, the high oxidation contributing to CO of oxygen content, oxygen content is low contributes to NO
xreduction; The content of oxygen in the controlled tobacco curing gas of first lambda sensor, thus make oxidation and the NO of CO
xreduction can both carry out efficiently.Concrete control method is: the operating temperature of catalytic module controls between 120 to 150 DEG C, the oxygen concentration monitored when the first lambda sensor is lower than 10%, main controller controls blower fan improves rotating speed, strengthen intake, when the oxygen concentration that the first lambda sensor monitors higher than 11% time, main controller controls blower fan reduces rotating speed, reduces intake.
Further, monitor catalytic effect for convenience, the second lambda sensor 11 be connected with master controller 8 is provided with above heat exchanger 2, second lambda sensor 11 can monitor the content of oxygen in flue gas after catalytic treatment, thus monitoring catalytic effect, the oxygen concentration difference that the oxygen concentration detected when the second lambda sensor and the first lambda sensor monitor is less than 0.5%, and when duration continues more than 10min, master controller sends alarm command, and the warning device be connected in main control sends alarm signal.
Above detailed description of the invention has been described in detail essence of the present invention, but can not limit protection scope of the present invention with this.Apparently, under the enlightenment of essence of the present invention, the art those of ordinary skill also can carry out many improvement and modification, it should be noted that these improve and modify and all drops within claims of the present invention.
Claims (9)
1. an environmental-protection gas water heater, comprise: burner, heat exchanger, water inlet pipe, outlet pipe, blower fan, proportioning valve, exhaust fume collecting hood and master controller, described burner is arranged in combustion chamber, described blower fan and proportioning valve are connected with master controller and air capacity needed for control combustion and gas quantity, described heat exchanger is arranged in the heat exchanging chamber that is communicated with combustion chamber, described water inlet pipe, outlet pipe connect on heat exchangers, and described exhaust fume collecting hood is arranged on heat exchanging chamber; It is characterized in that, side is provided with catalytic module on heat exchangers, is provided with the first lambda sensor be connected with master controller between catalytic module with heat exchanger.
2. a kind of environmental-protection gas water heater according to claim 1, is characterized in that, side is provided with the second lambda sensor be connected with master controller on heat exchangers.
3. a kind of environmental-protection gas water heater according to claim 1, it is characterized in that, described catalytic module comprises: honeycomb support and the catalyst be coated on honeycomb support.
4. a kind of environmental-protection gas water heater according to claim 3, it is characterized in that, described honeycomb support is metallic carrier, is coated with catalyst layer at metal carrier surface.
5. a kind of environmental-protection gas water heater according to claim 3, is characterized in that, described honeycomb support is cellular ceramic substrate, and described catalyst deposit is in the hole of cellular ceramic substrate.
6. a kind of environmental-protection gas water heater according to claim 1, it is characterized in that, described catalyst is noble metal catalyst, and comprising Pt, Pd, Rh or described catalyst is one or more in non-precious metal catalyst Ce, La, Ba, Sr, Zr, Cu, Mn oxide.
7. a kind of environmental-protection gas water heater according to claim 1, is characterized in that, described burner is low NO.
8. a kind of environmental-protection gas water heater according to claim 1, it is characterized in that, the operating temperature of catalytic module controls between 120 DEG C to 150 DEG C, the oxygen concentration monitored when the first lambda sensor is lower than 10%, main controller controls blower fan improve rotating speed, strengthen intake, when the oxygen concentration that the first lambda sensor monitors higher than 11% time, main controller controls blower fan reduces rotating speed, reduces intake.
9. a kind of environmental-protection gas water heater according to claim 2, it is characterized in that, the oxygen concentration difference that the oxygen concentration detected when the second lambda sensor and the first lambda sensor monitor is less than 0.5%, and duration is when continuing more than 10min, master controller sends alarm command, and the warning device be connected in main control sends alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938479.8A CN105402880A (en) | 2015-12-15 | 2015-12-15 | Environment-friendly gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938479.8A CN105402880A (en) | 2015-12-15 | 2015-12-15 | Environment-friendly gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402880A true CN105402880A (en) | 2016-03-16 |
Family
ID=55468530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510938479.8A Pending CN105402880A (en) | 2015-12-15 | 2015-12-15 | Environment-friendly gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402880A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339808A (en) * | 2017-01-24 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of method for controlling combustion of the gas heater based on lambda sensor |
| CN108014639A (en) * | 2017-12-29 | 2018-05-11 | 芜湖美的厨卫电器制造有限公司 | Purifier and gas-fired water heater |
| CN108286733A (en) * | 2018-02-08 | 2018-07-17 | 张炳强 | A kind of spiral heat changes the quick heating installation of slow flow type |
| CN108332414A (en) * | 2018-02-08 | 2018-07-27 | 张炳强 | A kind of rotation unhurried current heat changes the quick heating installation of formula |
| CN108332275A (en) * | 2018-02-08 | 2018-07-27 | 张炳强 | A kind of spiral stream guidance heat changes the quick heating installation of formula |
| CN109695956A (en) * | 2017-10-24 | 2019-04-30 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298465Y (en) * | 1997-06-11 | 1998-11-25 | 张大庆 | No-pollusion gas water heater |
| JP2013088067A (en) * | 2011-10-20 | 2013-05-13 | Kaneko Agricultural Machinery Co Ltd | Clean heat and hot air-generating device by biomass combustion |
| CN203731701U (en) * | 2013-12-02 | 2014-07-23 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| JP2014151265A (en) * | 2013-02-07 | 2014-08-25 | Kawaken Fine Chemicals Co Ltd | Catalyst for fan heater, and fan heater |
| CN205372985U (en) * | 2015-12-15 | 2016-07-06 | 广东万家乐燃气具有限公司 | Environmental protection gas heater |
-
2015
- 2015-12-15 CN CN201510938479.8A patent/CN105402880A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298465Y (en) * | 1997-06-11 | 1998-11-25 | 张大庆 | No-pollusion gas water heater |
| JP2013088067A (en) * | 2011-10-20 | 2013-05-13 | Kaneko Agricultural Machinery Co Ltd | Clean heat and hot air-generating device by biomass combustion |
| JP2014151265A (en) * | 2013-02-07 | 2014-08-25 | Kawaken Fine Chemicals Co Ltd | Catalyst for fan heater, and fan heater |
| CN203731701U (en) * | 2013-12-02 | 2014-07-23 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN205372985U (en) * | 2015-12-15 | 2016-07-06 | 广东万家乐燃气具有限公司 | Environmental protection gas heater |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339808A (en) * | 2017-01-24 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of method for controlling combustion of the gas heater based on lambda sensor |
| CN107339808B (en) * | 2017-01-24 | 2019-09-20 | 宁波方太厨具有限公司 | A kind of method for controlling combustion of the gas heater based on lambda sensor |
| CN109695956A (en) * | 2017-10-24 | 2019-04-30 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN108014639A (en) * | 2017-12-29 | 2018-05-11 | 芜湖美的厨卫电器制造有限公司 | Purifier and gas-fired water heater |
| CN108286733A (en) * | 2018-02-08 | 2018-07-17 | 张炳强 | A kind of spiral heat changes the quick heating installation of slow flow type |
| CN108332414A (en) * | 2018-02-08 | 2018-07-27 | 张炳强 | A kind of rotation unhurried current heat changes the quick heating installation of formula |
| CN108332275A (en) * | 2018-02-08 | 2018-07-27 | 张炳强 | A kind of spiral stream guidance heat changes the quick heating installation of formula |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |
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| RJ01 | Rejection of invention patent application after publication |