CN205351733U - Gas water heater - Google Patents
Gas water heater Download PDFInfo
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- CN205351733U CN205351733U CN201521142015.8U CN201521142015U CN205351733U CN 205351733 U CN205351733 U CN 205351733U CN 201521142015 U CN201521142015 U CN 201521142015U CN 205351733 U CN205351733 U CN 205351733U
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Abstract
The utility model provides a gas water heater. Specifically, this gas water heater includes: a housing. Heat exchanger, heat exchanger establishes inside the casing, the rich -lean combustion ware, the rich -lean combustion ware sets up the casing inside and with heat exchanger links to each other, catalytic reaction device, catalytic reaction device sets up the casing inside and with heat exchanger links to each other, the flue gas sensor, the flue gas sensor with heat exchanger links to each other, the device also comprises a controlle, the controller sets up inside the casing, and with flue gas sensor electricity is connected. From this, can be by nitrogen oxide in the flue gas of above -mentioned rich -lean combustion ware and this water heater emission of catalytic reaction device control and carbon monoxide's content to can in time remind when catalytic reaction device needs to be changed, and then can improve this gas water heater's security performance.
Description
Technical field
Gas heater is as comparatively conventional household electrical appliance, and the chemical composition in its security performance and combustion product gases becomes the important indicator weighing gas heater performance.Owing to the rapid burning of combustion gas can produce the toxic gas such as nitrogen oxides and carbon monoxide, not only the health of user and life security can be impacted, and the discharge of the flue gas containing above-mentioned pollutant will cause environmental pollution.For this, occur in that some low emission combustors are to control the discharge of the nitrogen oxides in flue gas.
But, how to be effectively reduced the content of the toxic and harmfuls such as the nitrogen oxides in effluent of gas heater discharge, carbon monoxide, be also those skilled in the art's urgent problem.
Utility model content
This utility model be based on inventor on the fact that and the discovery of problem and what understanding was made:
Adopt the gas heater of low emission combustor at present, there is the problem that combustion stability is not high.Inventor finds through further investigation, and this is to be easily caused in the process of life-time service combustion flame and cause the deformation of dense burning fire hole to cause owing to being currently based on the structural design of low emission combustor.In addition, in current gas heater, despite the use of different structures and parts reduce the discharge of discharge nitrogen oxides in effluent and carbon monoxide respectively, but can not effectively control the nitrogen oxides in effluent of gas heater discharge and the discharge capacity of carbon monoxide.In addition, in current gas heater, generally adopt and arrange and the catalyst of catalytic CO oxidation can reduce the content of carbon monoxide in flue gas, but this catalyst is generally of certain service life, as in time catalyst not being replaced after catalysqt deactivation, also the gas heater control for carbon monoxide discharge capacity will be affected.In addition, in correlation technique, heat exchanger in gas heater generally includes two, two heat exchangers are arranged spaced apart in the vertical direction, catalyst reaction device is connected between two heat exchangers, the both sides up and down of catalyst reaction device are connected with two heat exchangers respectively, when catalyst reaction device break down need overhaul time, catalyst reaction device could be carried out associative operation after needing to dismantle heat exchanger and catalyst reaction device respectively, therefore, when only needing to change catalyst reaction device, above-mentioned installation and annexation bring much inconvenience, especially, the job requirement of catalyst reaction device is comparatively strict, if using or Rig up error easily bringing potential safety hazard.Therefore, it is necessary to the mounting means of catalyst reaction device is improved.
Based on above-mentioned analysis, needing that design is a on the market badly can the gas heater of catalyst reaction device assembly of Fast Installation and dismounting.
This utility model is intended at least solve one of technical problem of existence in prior art.For this, the utility model proposes and have through the burner of dense fire hole of bending forming and there is the gas heater of heat exchanger of combustion product gases Catalytic Layer.Thus, it is possible to reduce the nitrogen oxides in effluent of this gas heater discharge and the content of carbon monoxide, improve the problem owing to dense burning fire hole deforms the poor combustion stability caused simultaneously.
The utility model proposes a kind of gas heater.Specifically, this gas heater includes: housing；Heat exchanger, described heat exchanger is located at described enclosure interior；Shade burner, described shade burner is arranged on described enclosure interior and is connected with described heat exchanger；Catalyst reaction device, described catalyst reaction device is arranged on described enclosure interior and is connected with described heat exchanger；Smoke detectors, described smoke detectors is connected with described heat exchanger；And controller, described controller is arranged on described enclosure interior, and electrically connects with described smoke detectors.Thus, the content of the nitrogen oxides in the flue gas of this water heater discharge and carbon monoxide can be controlled by above-mentioned shade burner and catalyst reaction device, and can remind in time when catalyst reaction device needs and changes, and then the security performance of this gas heater can be improved.
Additionally, above-mentioned gas heater can also have further following additional technical feature at least one:
Specifically, described heat exchanger includes: holding tank；Mounting seat, described mounting seat is located in described holding tank, and wherein, described catalyst reaction device individually and removably with described mounting seat is connected.Specifically, by heat exchanger being configured with the structure of holding tank, mounting seat being set in holding tank, and catalyst reaction device individually and removably with mounting seat is connected, improve the installation and removal speed of catalyst reaction device.
In other words, include according to gas heater of the present utility model: housing；Heat exchanger, described heat exchanger is located in described housing, and described heat exchanger is provided with holding tank；Mounting seat, described mounting seat is located in described holding tank；Catalyst reaction device, described catalyst reaction device individually and removably with described mounting seat is connected.
Specifically, described heat exchanger includes: upper machine body lower body and connecting portion, wherein, described upper machine body and described lower body are arranged spaced apart in the vertical direction, described connecting portion is located between described upper machine body and described lower body and respectively with described upper machine body and described lower body and is connected, limits the described holding tank of a side opening between described upper machine body, described lower body and described connecting portion.Thus, it is possible to mounting seat is set in holding tank to carry out the installation of catalyst reaction device, such that it is able to complete the dismounting to catalyst reaction device and installation when not affecting heat exchanger.
Specifically, described upper machine body, described lower body and described connecting portion are integrally formed.
Specifically, described mounting seat is embedded in described holding tank.
Specifically, described mounting seat is located in described holding tank by securing member.
Specifically, described mounting seat is located in described holding tank by welding.
Specifically, described mounting seat is formed as frame-shaped construction.Thus, it is possible to complete the setting of catalyst reaction device easily in the mounting seat of frame-shaped construction.
Specifically, described mounting seat is located in described holding tank by securing member or welding.Thus, it is possible to easily mounting seat is fixed in holding tank.
Specifically, described heat exchanger farther includes: installing lid, described lid of installing is detachably connected with described mounting seat, and described catalyst reaction device is located at described installation and covers.
Specifically, described lid of installing is connected by screw or snap with described mounting seat.
Specifically, described catalyst reaction device is fixed on the described inner side installing lid.Thus, it is possible to firmly catalyst reaction device is fixed in mounting seat.When catalyst reaction device is dismantled by needs, it is only necessary to remove and install lid, expose catalyst reaction device and carry out associative operation, then recovering to install the position of lid again.
Specifically, described shade burner includes: shade burner housing；Dense fuel injector；Light fuel injector；And light fuel guide member, wherein, described shade burner housing has the light burning shell portion being connected with each other and dense burning shell portion, described shade burner housing is along the demarcation line bending in described light burning shell portion and described dense burning shell portion, to limit light fuel hybrid chamber in described light burning shell portion, and limit, between described light burning shell portion and described dense burning shell portion, the dense fuel hybrid chamber being positioned at described light fuel hybrid chamber both sides, described shade burner housing is provided with the light fire hole connected with described light fuel hybrid chamber and connects and be positioned at the dense fire hole of described light fire hole both sides with described dense fuel hybrid chamber, described dense fire hole is positioned at the bending part of described shade burner housing, described light fuel injector is located on described shade burner housing and connects with described light fuel hybrid chamber, described dense fuel injector is located on described shade burner housing and connects with described dense fuel hybrid chamber, described dense fuel injector is positioned at above described light fuel injector, described light fuel guide member is located in described light fuel hybrid chamber, and described light fire hole is located on described light fuel guide member.Thus, the amount of nitrogen oxides in the flue gas of this water heater discharge can be controlled by above-mentioned shade burner, and then the security performance of this gas heater can be improved, furthermore, it is possible to by controlling dense fuel and the respective air-fuel ratio of light fuel, it is possible to reduce ignition temperature, thus the discharge of the nitrogen oxides effectively controlled in flue gas, and owing to dense fire hole is through bending and molding, thus avoiding the deformation of dense fire hole, it is ensured that smooth combustion.
Specifically, described dense fuel injector is positioned at above described light fuel injector.Thus, it is possible to be effectively reduced the content of the produced nitrogen oxides in effluent of burning, and then improve the security performance of this gas heater further.
Specifically, in this gas heater, described shade burner farther includes: light fuel guide member, and described light fuel guide member is located in described light fuel hybrid chamber, and described light fire hole is located on described light fuel guide member.
Specifically, in described shade burner, described dense fire hole and described light fire hole all upward and described dense fire hole higher than described light fire hole.
Specifically, respectively multiple and along described light burning shell portion and described dense burning shell portion the demarcation line of the dense fire hole of every side of described light fire hole is spaced.
Specifically, in described shade burner, described light burning shell portion and described dense burning shell portion are integrated part.
Specifically, in described shade burner, described shade burner housing includes two sub-plate bodys, two described daughter board body bendings respectively and being bolted together, limiting described dense fuel hybrid chamber respectively after limiting described light fuel hybrid chamber and each described daughter board body bending between two described daughter board bodies, described dense fire hole is at least two and the bending part being respectively provided at two described daughter board bodies.
Specifically, described heat exchanger is connected by screw with described shade burner, and described heat exchanger is arranged on the top of described shade burner.Thus, it is possible to utilize the combustion product gases that shade burner produces that current are heated, in order to realize the use function of this gas heater.
Specifically, in this gas heater, described heat exchanger farther includes: combustion product gases entrance, and described combustion product gases entrance is arranged on described lower body, and is connected with described shade burner；Combustion product gases exports, and the outlet of described combustion product gases is arranged on described upper machine body.Thus, it is possible to utilize the less combustion product gases of amount of nitrogen oxides that shade burner produces to complete heat exchange, such that it is able to improve the security performance of this gas heater.
Specifically, in this gas heater, described catalyst reaction device is provided with catalyst.Thus, it is possible to by catalyst carbon monoxide generation oxidation reaction, generate nontoxic carbon dioxide, and then the security performance of this gas heater can be improved.
Specifically, described catalyst is noble metal carrier catalyst, and described noble metal carrier catalyst includes: carrier and carried noble metal.Thus, the oxidation reaction of carbon monoxide in combustion product gases can be completed by above-mentioned noble metal carrier catalyst catalysis, and then the content of harmful gas in the combustion product gases discharging this gas heater can be effectively reduced, and then improve the security performance of this gas heater further.
Specifically, described catalyst includes: carrier, additive, perovskite type rare-earth oxide, Cu element, Mn element or Co element.Thus, the oxidation reaction of carbon monoxide in combustion product gases can be completed by the above-mentioned catalyst containing rare-earth oxide, and then the content of harmful gas in the combustion product gases discharging this gas heater can be effectively reduced, and reduce the production cost of this gas heater, and then improve the security performance of this gas heater further.
Specifically, in described catalyst, described perovskite type rare-earth oxide is La0.6Sr0.4Co0.8Fe0.2O3, described carrier is γ-Al3O2, described additive is at least one of Pt, Pd and Rh element, and wherein, based on the gross mass of described catalyst, the content of described RE perovskite type rare earth oxide is 2～21 mass %, described γ-Al3O2The content of carrier is 78～97 mass %, and the content of described additive is 1 mass %.Thus, the oxidation reaction of carbon monoxide in combustion product gases can be completed by the above-mentioned catalyst containing rare earth oxide, and then the content of harmful gas in the combustion product gases discharging this gas heater can be effectively reduced, and reduce the production cost of this gas heater, and then improve the security performance of this gas heater further.
Specifically, this gas heater farther includes: water intaking valve, and described water intaking valve is arranged on the housing；Outlet valve, described outlet valve is arranged on the housing；And water stream channel, described water stream channel one end is connected with described water intaking valve, and the other end is connected with described outlet valve, is arranged on the outer wall of described heat exchanger to the coiling of described water stream channel.Thus, it is possible to current are heated by the sensible heat effectively utilized in combustion product gases, and then the result of use of this gas heater can be improved.
Specifically, this gas heater farther includes: water intaking valve, and described water intaking valve is arranged on the housing；Outlet valve, described outlet valve is arranged on the housing；And water stream channel, described water stream channel one end is connected with described water intaking valve, and the other end is connected with described outlet valve, described water stream channel be at least partially disposed in described internal heat exchanger.Thus, it is possible to current are heated by the sensible heat effectively utilized in combustion product gases, and then the result of use of this gas heater can be improved further.
Specifically, in this gas heater, including multiple described smoke detectors, and at least one of multiple described smoke detectors is arranged on described combustion product gases exit.Thus, carbon monoxide content in the flue gas can discharged for combustion product gases exit by smoke detectors is detected, and the controller by electrically connecting with smoke detectors, when carbon monoxide content exceedes preset value, user is sent prompting, and then can realize for effective control of carbon monoxide content in flue gas.
Specifically, in this gas heater, including two described smoke detectors, said two smoke detectors is separately positioned on the bottom of described catalyst reaction device and the top of described catalyst reaction device.Thus, the smoke detectors detection being arranged on catalyst reaction device bottom can be utilized without the content of carbon monoxide in the combustion product gases of catalyst reaction device process, and utilize the content of carbon monoxide in the smoke detectors detection being arranged on catalyst reaction device top combustion product gases after catalyst reaction device processes, and then can more accurately efficiency and effect to catalyst reaction device catalytic CO oxidation reaction detect, and then improve the security performance of this gas heater further.
Specifically, in this gas heater, described gas heater includes two described smoke detectors, and said two smoke detectors is separately positioned on the bottom of described catalyst reaction device and described combustion product gases exit.Thus, can at combustion product gases exit detection content of carbon monoxide in the flue gas that catalyst reaction device processes, and then can more accurately efficiency and effect to catalyst reaction device catalytic CO oxidation reaction detect, and then improve the security performance of this gas heater further.
Accompanying drawing explanation
Fig. 1 is the gas heater structural representation according to this utility model embodiment；
Fig. 2 is the structural representation that catalyst reaction device do not installed by the gas heater according to one embodiment of this utility model；
Fig. 3 is the structural representation that catalyst reaction device installed by the gas heater according to one embodiment of this utility model；
Fig. 4 is the structural representation of the catalyst reaction device according to one embodiment of this utility model；
Fig. 5 is the structural representation installing lid according to one embodiment of this utility model；
Fig. 6 is the heat exchanger according to one embodiment of this utility model and catalyst reaction device fit structure schematic diagram；
Fig. 7 is the front view of the shade burner according to this utility model embodiment；
Fig. 8 is the sectional view of the line A-A along Fig. 1；
Fig. 9 is the sectional view of the line B-B along Fig. 1；
Figure 10 is the axonometric chart of the shade burner according to this utility model embodiment；
Figure 11 is the schematic diagram before the bending of the daughter board body of the shade burner housing of the shade burner according to this utility model embodiment；
Figure 12 is the schematic diagram after the bending of the daughter board body of the shade burner housing of the shade burner according to this utility model embodiment；
Figure 13 is the part-structure schematic diagram of the gas heater according to this utility model embodiment；
Figure 14 is the part-structure schematic diagram of the gas heater according to another embodiment of this utility model；And
Figure 15 is the water heater working schematic flow sheet according to this utility model embodiment.
Accompanying drawing labelling:
Gas heater 1000；
Housing 10；
Shade burner 100,
Shade burner housing 1, light burning shell portion 11, light fuel hybrid chamber 111, dense burning shell portion 12, dense fuel hybrid chamber 121, daughter board body 13, dense fire hole 130, dense fuel flow channel 131, dense fuel injector 2, light fuel injector 3, light fuel guide member 4, light fire hole 40, light fuel flow channel 41；Fuel gas inlet 101, gas ratio valve 102；
Heat exchanger 200,
Combustion product gases entrance 220, combustion product gases outlet 230, catalyst reaction device 400, water stream channel 250, exhaust fume collecting hood 260, upper machine body 270, connecting portion 280, lower body 290；
Water intaking valve 300, water flow sensing unit 310, water proportioning valve 320；
Outlet valve 330；
Catalyst reaction device 400；Smoke detectors 410；
Blower fan 500, blast switch 510；
Controller 600；
Mounting seat 700；
Holding tank 800；
Lid 900 is installed.
Detailed description of the invention
Being described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining this utility model, and it is not intended that to restriction of the present utility model.
The utility model proposes a kind of gas heater.According to embodiment of the present utility model, with reference to Fig. 1, this gas heater 1000 includes: housing 10, heat exchanger 200, shade burner 100, catalyst reaction device 400, smoke detectors 410 and controller 600.
Specifically, with reference to Fig. 1, it is internal that heat exchanger 200, shade burner 100 and catalyst reaction device 400 are arranged at housing 10, and shade burner 100 and catalyst reaction device 400 are separately connected with heat exchanger 200.It is to say, shade burner 100 is connected with heat exchanger 200, in order to heat exchanger 200 utilizes the combustion product gases that shade burner 100 produces to carry out heat exchange.Catalyst reaction device 400 is connected with heat exchanger 200, in order to the combustion product gases through heat exchange is processed, thus reducing the content of carbon monoxide in combustion product gases.Smoke detectors 410 is connected with heat exchanger 200, in order to the carbon monoxide in the combustion product gases entering or discharging heat exchanger 200 is detected.It is internal that controller 600 is arranged on housing 10, and electrically connects with smoke detectors 410, in order to gas heater 1000 is controlled by the testing result based on smoke detectors 410.Thus, this gas heater can effectively reduce the content of the nitrogen oxides in the flue gas of discharge and carbon monoxide, and can send prompting in time when catalyst reaction device 400 needs repairing or changes.
Understand in order to convenient, separately below each parts of the gas heater according to this utility model embodiment are described in detail.As in figure 2 it is shown, heat exchanger 200 is located in housing 10, heat exchanger 200 includes: holding tank 800 and mounting seat 700.Specifically, mounting seat 700 is located in holding tank 800, and catalyst reaction device 400 (as shown in Figure 4) individually and removably with mounting seat 700 is connected.That is, catalyst reaction device 400 is relatively independent with heat exchanger 200 and exhaust fume collecting hood (not shown) in annexation, in all parts assembling process of gas heater 1000, can first heat exchanger 200 be located in housing 10, then mounting seat 700 is placed in holding tank 800, finally catalyst reaction device 400 is embedded in holding tank 800.When gas heater 1000 breaks down, after opening the face-piece of gas heater 1000, it is possible to individually take off catalyst reaction device 400 and repair or replace, it is not necessary to dismounting heat exchanger 200 miscellaneous part such as grade.Comparing traditional gas heater 1000, the gas heater 1000 according to this utility model embodiment, catalyst reaction device 400 and other parts are each other almost without interference, and the installation and removal of catalyst reaction device 400 are all relatively independent.
Traditional gas heater generally includes shade burner assembly, heat exchanger assemblies, catalyst reaction device assembly and exhaust fume collecting hood assembly.Shade burner assembly in gas heater, heat exchanger assemblies, catalyst reaction device assembly and exhaust fume collecting hood assembly are upwards sequentially connected with from drain pan, interrelated between each assembly.Therefore, assembling or maintenance process needs to mount and dismount in the order described above.Obviously, when only needing to change catalyst reaction device, above-mentioned installation and annexation bring much inconvenience, and especially, the job requirement of catalyst reaction device is comparatively strict, if use or Rig up error easily bring potential safety hazard.Therefore, it is necessary to the mounting means of catalyst reaction device is improved.Thus, gas heater 1000 according to this utility model embodiment, by heat exchanger 200 being configured with the structure of holding tank 800, mounting seat 700 is set in holding tank 800, and catalyst reaction device 400 individually and removably with mounting seat 700 is connected, improve the installation and removal speed of catalyst reaction device 400.
In embodiments more of the present utility model, as shown in Figure 6, heat exchanger 200 can include upper machine body 270, lower body 290 and connecting portion 280, upper machine body 270 and lower body 290 are arranged spaced apart in the vertical direction, connecting portion 280 is located between upper machine body 270 and lower body 290 and respectively with upper machine body 270 and lower body 290 and is connected, and limits holding tank 800 (not shown) of a side opening between upper machine body 270, lower body 290 and connecting portion 280.So, catalyst reaction device 400 can stretch into holding tank 800 from opening and installation is positioned at mounting seat 700, and catalyst reaction device 400 does not have any relation with upper machine body 270 and lower body 290 on being connected.When needs by catalyst reaction device 400 from when unloading in holding tank 800, catalyst reaction device 400 can easily pull out from holding tank 800.Thus, improve catalyst reaction device 400 and mount and dismount process.
Further, upper machine body 270, lower body 290 and connecting portion 280 may be integrally formed.Thus, it is possible to heat exchanger 200 integral installation be positioned in housing 10, thus simplify the assembling procedure of gas heater 1000.
In embodiments more of the present utility model, mounting seat 700 can be embedded in holding tank 800.It is to say, whole mounting seat 700 can be built in holding tank 800, mounting seat 700 deviate from the surface inside housing 10 can with and heat exchanger 200 substantially on same perpendicular.Thus, it is possible to improve the compactedness installed between each parts of gas heater 1000 and be easy to the connection of face-piece and housing 10.
In specific embodiments more of the present utility model, mounting seat 700 and holding tank 800 are located in holding tank 800 by securing member.Such as, mounting seat 700 can be located in holding tank 800 by screw.So, when being necessary, it is possible to mounting seat 700 is taken off in holding tank 800.Certainly, this utility model is not limited to this, and mounting seat 700 can also be located in holding tank 800 by welding.Thus, it is possible to improve bonding strength between mounting seat 700 and holding tank 800, it is prevented that mounting seat 700 comes off in holding tank 800.
Additionally, mounting seat 700 can be formed as frame-shaped construction.Frame-shaped construction is identical with the shape and structure of holding tank 800, thus, it is simple to mounting seat 700 is arranged in holding tank 800.Certainly, above-described embodiment is only illustrative, and is not to restriction of the present utility model.
In still other embodiments of the present utility model, with reference to Fig. 3 and in conjunction with Fig. 5, gas heater 1000 can also include installing lid 900.Installing lid 900 to be detachably connected with mounting seat 700, catalyst reaction device 400 is located on installation lid 900.It is so designed that and is advantageous in that, catalyst reaction device 400 is before the mounting, can in advance catalyst reaction device 400 Primary Location installed on lid 900, then along the bearing of trend of holding tank 800, catalyst reaction device 400 is embedded in holding tank 800, finally connects installation lid 900 and mounting seat 700 to realize the stable installation of catalyst reaction device 400.When needs take off catalytic unit, it is only necessary to installation is covered 900 and separates with mounting seat 700.Thus, it is possible to reduce mechanical injuries to catalyst reaction device 400 in installation and removal process, it is to avoid the function of catalyst reaction device 400 is affected in an assembling process.
Can be connected by screw or snap additionally, install lid 900 with mounting seat 700.Thus, it is simple to separating between lid 900 and mounting seat 700 is installed.
In another specific embodiment of the present utility model, catalyst reaction device 400 is fixed on the inner side installing lid 900.It is to say, catalyst reaction device 400 is mounted base 700 and installation lid 900 is limited in holding tank 800.Thus, it is possible to catalyst reaction device 400 and miscellaneous part are further separated, it is to avoid the miscellaneous part interference to catalyst reaction device 400.
Below with reference to Fig. 7-Figure 12, the shade burner 100 according to this utility model embodiment is described.
Adopt the gas heater of low emission shade burner at present, there is the problem that combustion stability is not high.Inventor finds through further investigation, and this is to be easily caused in the process of life-time service combustion flame and cause the deformation of dense burning fire hole to cause owing to being currently based on the structural design of low emission shade burner.In addition, in current gas heater, despite the use of different structures and parts reduce the discharge of discharge nitrogen oxides in effluent and carbon monoxide respectively, but can not effectively control the nitrogen oxides in effluent of gas heater discharge and the discharge capacity of carbon monoxide.
According to embodiment of the present utility model, shade burner 100 can either effectively control the mixed proportion of fuel and air, thus reaching to control the purpose of the discharge of nitrogen oxides in effluent, ensure that again the shape of dense fire hole, thus flameholding.
As shown in Fig. 7-Figure 12, the shade burner 100 according to this utility model embodiment, including shade burner housing 1.
Specifically, shade burner housing 1 has the light burning shell portion 11 and dense burning shell portion 12 that are connected with each other, for instance, dense burning shell portion 12, light burning shell portion 11, dense burning shell portion 12 are arranged in order in the longitudinal direction.Preferably, light burning shell portion 11 and dense burning shell portion 12 are integrated part, consequently facilitating manufacture and assembling.
Shade burner housing 1 is along the demarcation line bending in light burning shell portion 11 and dense burning shell portion 12, to limit light fuel hybrid chamber 111 in light burning shell portion 11, and between light burning shell portion 11 and dense burning shell portion 12, limit the dense fuel hybrid chamber 121 being positioned at light fuel hybrid chamber 111 both sides, namely dense fuel hybrid chamber 121 lays respectively at the both sides, front and back of light fuel hybrid chamber 111.So, the light fuel in light fuel hybrid chamber 111 forms light burning, and the dense fuel in dense fuel hybrid chamber 121 forms dense burning, and dense combustion distribution is in the both sides, front and back of light burning, thus the dense burning of both sides, front and back can stablize light burning.
It should be noted that in description of the present utility model, " dense burning " and " light burning " is comparatively speaking, i.e. the mass ratio of the fuel of " dense burning " and the mass ratio of the air fuel more than " light burning " and air.
It is appreciated that by controlling dense fuel and the respective air-fuel ratio of light fuel, it is possible to reduce ignition temperature, thus controlling the discharge of nitrogen oxides in effluent.
Shade burner housing 1 is provided with the light fire hole 40 connected with light fuel hybrid chamber 111 and connects and be positioned at the dense fire hole 130 of light fire hole 40 both sides with dense fuel hybrid chamber 121, and wherein, dense fire hole 130 is positioned at the bending part of shade burner housing 1.Such as, dense fire hole 130 is distributed in the both sides, front and back of light fire hole 40, and dense fire hole 130 is positioned at light burning shell portion 11 and the demarcation line place in dense burning shell portion 12, and light fuel burns in light fire hole 40, and dense fuel burns in dense fire hole 130.Thus, form the combustion system of " dense-light-dense ", the light burning of dense flameholding of both sides, front and back, and the remaining fuel of the dense fuel combustion of both sides, the front and back air remaining with light fuel combustion burn again, thus reducing ignition temperature, it is achieved control the purpose of the discharge of nitrogen oxides in effluent.Additionally, due to dense fire hole 130 connects bending and molding by light burning shell portion 11 and dense burning shell portion 12, thus dense fire hole 130 is unlikely to deform.
Shade burner 100 according to this utility model embodiment, adopt the combustion system of " dense-light-dense ", ignition temperature can be reduced, thus the discharge of the nitrogen oxides effectively controlled in flue gas, and owing to dense fire hole 130 passes through bending and molding, thus avoiding the deformation of dense fire hole 130, it is ensured that smooth combustion.
With reference to Fig. 7 and in conjunction with Figure 10, according to an embodiment of the present utility model, shade burner 100 can also include dense fuel injector 2 and light fuel injector 3.So, dense fuel injector 2 guides fuel to enter dense fuel hybrid chamber 121, and make fuel mix homogeneously with air, mix the dense fuel dense fire hole 130 of arrival afterwards and carry out dense burning, meanwhile, light fuel injector 3 guides fuel to enter light fuel hybrid chamber 111, and makes fuel mix homogeneously with air, mixes the light fuel light fire hole 40 of arrival afterwards and carries out light burning.
Further, as illustrated in fig. 7 and fig. 10, dense fuel injector 2 is positioned at above light fuel injector 3, so facilitates the bending and molding of shade burner housing 1.
In some embodiments as Figure 8-Figure 10, shade burner 100 can also include light fuel guide member 4, light fuel guide member 4 is located in light fuel hybrid chamber 111, light fire hole 40 is located on light fuel guide member 4, so can so that forming light fire hole 40, it is beneficial to the smooth combustion controlling light fuel, thus being conducive to controlling the discharge of the nitrogen oxides in flue gas.Such as, light fuel guide member 4 can being provided with four groups of light fire holes 40 of equidistantly arrangement in the lateral direction, often organize light fire hole 40 and include three, three light fire holes 40 are in tandem.
As shown in figs, according to embodiments more of the present utility model, dense fire hole 130 and light fire hole 40 all upward and dense fire hole 130 higher than light fire hole 40, be thus further ensured that flameholding.Such as, the upper edge in dense burning shell portion 12 is higher than the upper edge of light fuel guide member 4 and light burning shell portion 11.
In such as some specific embodiments shown in Fig. 8 and Figure 10-Figure 12, the dense fire hole 130 of every side of light fire hole 40 is respectively multiple, and multiple dense fire hole 130 is spaced along the demarcation line in light burning shell portion 11 and dense burning shell portion 12.Such as, the front and back of light fire hole 40 are respectively provided on two sides with four dense fire holes 130, and four dense fire holes 130 of every side equidistantly arrange in the lateral direction, are so conducive to stablizing light burning, control the discharge of nitrogen oxides in effluent.
As shown in Fig. 7-Figure 12, according to embodiments more of the present utility model, shade burner housing 1 can include two sub-plate bodys 13, two sub-plate body 13 bendings respectively and being bolted together, light fuel hybrid chamber 111 is limited between two sub-plate bodys 13, and after the bending of each daughter board body 13, limiting dense fuel hybrid chamber 121 respectively, dense fire hole 130 is at least two and the bending part being respectively provided at two sub-plate bodys 13.In other words, light burning shell portion 11 is divided into two parts and is respectively formed on two sub-plate bodys 13, dense burning shell portion 12 is divided into two parts and is respectively formed on two sub-plate bodys 13, light fuel hybrid chamber 111 is limited after light burning shell portion 11 assembly of two sub-plate bodys 13, the dense burning shell portion 12 of each daughter board body 13 and the demarcation line place bending in light burning shell portion 11 are to limit dense fuel hybrid chamber 121, and the dense fire hole of at least two 130 is respectively provided at the dense burning shell portion 12 of two sub-plate bodys 13 and the demarcation line place in light burning shell portion 11.Wherein, Figure 10 illustrates the structural representation before daughter board body 13 bending, and Figure 11 illustrates the structural representation after daughter board body 13 bending, forms the shade burner housing 1 of shade burner 100 as shown in Figure 9 after daughter board body 13 assembly after two bendings.
Alternatively, as shown in fig. 10 and fig. 12, it is weldingly connected between the edge after the bending of each daughter board body 13 and between the edge of two sub-plate bodys 13, to ensure structural stability and the sealing of shade burner housing 1.
Below with reference to the accompanying drawings shade burner 100 according to an of the present utility model specific embodiment is described in detail, is worth being understood by, simply exemplary illustration described below, and it is not intended that to restriction of the present utility model.
As shown in Fig. 5-Figure 12, the shade burner 100 according to this utility model embodiment, including shade burner housing 1.
Specifically, shade burner housing 1 includes two sub-plate bodys 13 that front and back are placed, and light burning shell portion 11 is divided into two parts and is respectively formed on two sub-plate bodys 13, and dense burning shell portion 12 is divided into two parts and is respectively formed on two sub-plate bodys 13.Two sub-plate bodys 13, respectively in the demarcation line place bending in light burning shell portion 11 and dense burning shell portion 12 and be bolted together, are weldingly connected between the edge after the bending of each daughter board body 13 and between the edge of two sub-plate bodys 13.Wherein, front side the dense burning shell portion 12 of daughter board body 13, the light burning shell portion 11 of front side daughter board body 13, the light burning shell portion 11 of rear side daughter board body 13, rear side daughter board body 13 dense burning shell portion 12 be arranged in order in the longitudinal direction, namely limit dense fuel hybrid chamber 121 between light burning shell portion 11 and the dense burning shell portion 12 of each daughter board body 13, between the light burning shell portion 11 of two sub-plate bodys 13, limit light fuel hybrid chamber 111.
Dense fuel injector 2 connects with dense fuel hybrid chamber 121, and light fuel injector 3 connects with light fuel hybrid chamber 111, and dense fuel injector 2 is positioned at above light fuel injector 3.Light fuel guide member 4 is located in light fuel hybrid chamber 111, light fuel guide member 4 is provided with the four groups of light fire holes 40 equidistantly arranged in the lateral direction and the light fuel flow channel 41 connected with light fire hole 40, often organize light fire hole 40 and include three, being arranged in order before and after three light fire holes 40, each light fire hole 40 connects with light fuel hybrid chamber 111 each through light fuel flow channel 41.The bending part of two sub-plate bodys 13 is respectively equipped with four dense fire holes 130, and four dense fire holes 130 equidistantly arrange in the lateral direction, and namely every side of light fire hole 40 is provided with four dense fire holes 130.Dense fire hole 130 and light fire hole 40 all upward and dense fire hole 130 higher than light fire hole 40.Dense fuel flow channel 131 is limited by dense burning shell portion 12 and light burning shell portion 11, and connects with dense fire hole 130 and dense fuel hybrid chamber 121 respectively.
When shade burner 100 works, a part of fuel is sprayed by dense fuel nozzle, dense fuel hybrid chamber 121 is entered through overrich fuel injector 2, after fuel is mixed homogeneously with air, it flow to dense fire hole 130 along dense fuel flow channel 131 and carry out dense burning, meanwhile, another part fuel is sprayed by light fuel nozzle, enter light fuel hybrid chamber 111 through light fuel injector 3, after fuel is mixed homogeneously with air, flow to light fire hole 40 along light fuel flow channel 41 and carry out light burning.So far, the burning of flame formation " dense-light-dense ", the light burning in the middle of the dense flameholding of both sides, and the remaining fuel of the dense burning air remaining with light burning burn again, reduces the purpose of ignition temperature, thus controlling the discharge of nitrogen oxides in effluent.Arrow shown in Fig. 7-Fig. 9 is for illustrating the flow path of dense fuel and light fuel.Additionally, due to dense fire hole 130 is through bending and molding, therefore after long-term work, dense fire hole 130 will not deform, thus flameholding.
Thus, the shade burner 100 according to this utility model embodiment, utilize the combustion system of " dense-light-dense ", it is possible to effectively control the discharge of nitrogen oxides in effluent, and dense fire hole 130 will not deform in long-term work, thus flameholding.
According to embodiment of the present utility model, with reference to Figure 13, heat exchanger 200 includes: combustion product gases entrance 220, combustion product gases outlet 230 and water stream channel 250.Specifically, combustion product gases entrance 220 is arranged on lower body 290, and is connected with shade burner 100, in order to the combustion product gases discharged by shade burner 100 supplies to heat exchanger 200；Combustion product gases outlet 230 is arranged on upper machine body 270, for the combustion product gases through heat exchange is discharged heat exchanger 200.Simultaneously, combustion product gases through over-heat-exchanger is processed by catalyst reaction device 400 (not shown), by catalytic reaction, the carbon monoxide in combustion product gases is converted into carbon dioxide, and then the security performance of this gas heater can be improved further.
It should be noted that, the concrete connected mode of heat exchanger 200 and shade burner 100 is not particularly limited, heat exchanger 200 and shade burner 100 can be attached by those skilled in the art according to the practical structures of heat exchanger 200 and shade burner 100, as long as reliable and stable connection can be formed.Such as, according to embodiment of the present utility model, in this gas heater, heat exchanger 200 can be arranged on the top of shade burner 100, and is connected with shade burner 100 by screw.Thus, it is possible to the combustion product gases that shade burner 100 produces is effectively supplied to heat exchanger 200 by combustion product gases entrance 220.
According to embodiment of the present utility model, one end of water stream channel 250 is connected with the water intaking valve 300 of gas heater, is delivered to by water in heat exchanger 200 to complete heat exchange；The other end of water stream channel 250 is connected with the outlet valve 330 of gas heater, in order to the hot water output gas heater that will obtain through heat exchange.Thus, it is possible to utilize the sensible heat contained in combustion product gases that the water in water stream channel 250 is heated, in order to realize the function of this gas heater.
It should be noted that in this utility model, term " hot water " refers in particular to the water of output after over-heat-exchanger 200 heat exchange, and its actual temp is not limited.
Additionally, according to embodiment of the present utility model, the set-up mode of water stream channel 250 is not particularly limited.Those skilled in the art can according to the position of all parts in actual gas heater, the concrete set-up mode of water stream channel 250 is designed, carry out heat exchange as long as water can be delivered in heat exchanger 200, and the hot water after heat exchange is exported so that user uses.Such as, according to an embodiment of the present utility model, water stream channel 250 can be arranged on the outer wall of heat exchange housing 210 with coiling.According to another embodiment of the present utility model, water stream channel 250 can also be arranged in heat exchange space at least partially, in order to the combustion product gases in heat exchange space directly and the wall contacts of water stream channel 250 complete heat exchange.Thus, it is possible to improve the heat transfer effect of heat exchanger 200 further.
According to embodiment of the present utility model, catalyst reaction device 400 is provided with the carbon monoxide generation oxidation reaction in catalytic combustion flue gas raw, and becomes the catalyst of carbon dioxide.Specifically, this catalyst can be noble metal carrier catalyst.This noble metal carrier catalyst includes carrier and carried noble metal.Specifically, carrier can be aluminium sesquioxide, and carried noble metal can be Pt, Pd or Au.According to embodiments more of the present utility model, based on the gross mass of noble metal carrier catalyst, the content that the content that content is 0～40 mass %, Pd is 0～38.9 mass %, Au that the content of carrier can be 60～99.9 mass %, Pt is 0～39.5 mass %.Thus, can by the carbon monoxide generation oxidation reaction in catalyst reaction device 400 catalytic combustion flue gas, and then carbon monoxide content in the combustion product gases of heat exchange spatial manipulation can be reduced, and then security performance and the result of use of this gas heater can be improved further.
It will be appreciated by those skilled in the art that in catalyst reaction device 400, the kind of catalyst is not particularly limited, as long as can catalytic CO generation oxidation reaction.Such as, according to another embodiment of the present utility model, this catalyst may include that carrier, additive, perovskite type rare-earth oxide, Cu element, Mn element or Co element.Those skilled in the art can be according to the actual requirements, select suitable perovskite type rare-earth oxide, and Cu, Mn or Co element load forms catalyst on carrier, then this catalyst is filled in catalyst reaction device 400, so that catalysis completes the oxidation reaction of carbon monoxide, and then carbon monoxide content in the combustion product gases of heat exchange spatial manipulation can be reduced, and then security performance and the result of use of this gas heater can be improved further.
Additionally, according to another embodiment of the present utility model, this catalyst can be made up of RE perovskite type rare earth oxide and carrier, and a certain amount of additive can be added in this catalyst.Specifically, above-mentioned RE perovskite type rare earth oxide is La0.6Sr0.4Co0.8Fe0.2O3, carrier is γ-Al3O2, additive can be at least one of Pt, Pd and Rh element.Further, based on the gross mass of above-mentioned catalyst, the content of RE perovskite type rare earth oxide can be 2～21 mass %, γ-Al3O2The content of carrier can be 78～97 mass %, and the content of additive can be 1 mass %.Thus, the catalytic oxidation of carbon monoxide can be completed by the above-mentioned loaded catalyst containing rare-earth oxide, and then carbon monoxide content in the combustion product gases of heat exchange spatial manipulation can be reduced, and then security performance and the result of use of this gas heater can be improved further.
Skilled artisans appreciate that, owing to the catalyst in catalyst reaction device 400 is generally of certain service life, therefore after this catalysqt deactivation, it is impossible to remain valid the Oxidation of Carbon Monoxide in ground catalytic combustion flue gas, and then can the security performance of this gas heater be impacted.For solving this problem, this gas heater farther includes smoke detectors 410, and smoke detectors 410 electrically connects with controller 600.It should be noted that, particular location and the quantity of smoke detectors 410 are not particularly limited, and position and the quantity of smoke detectors 410 can be adjusted for the specific requirement of CO emission by those skilled in the art according to the particular location of physical unit in gas water-heater housing and user.According to embodiment of the present utility model, this gas heater can include multiple smoke detectors 410, and at least one of multiple smoke detectors is arranged on combustion product gases and exports 230 places.Specifically, with reference to Figure 14, according to an embodiment of the present utility model, this gas heater can comprise two smoke detectors 410, one of them of two smoke detectors 410 can be arranged on combustion catalysis reaction unit 400 bottom, and another is arranged on the top of catalyst reaction device 400.Thus, the smoke detectors detection being arranged on catalyst reaction device 400 bottom can be utilized without the content of carbon monoxide in the combustion product gases of catalyst reaction device process, and utilize the content of carbon monoxide in the smoke detectors detection being arranged on catalyst reaction device top combustion product gases after catalyst reaction device processes, and by the controller 600 electrically connected with the smoke detectors testing result based on two smoke detectors 410, calculate the conversion ratio of carbon monoxide.When the catalyst activity in catalyst reaction device 400 reduces, can not effectively the carbon monoxide in decomposition combustion flue gas time, namely too low at carbon monoxide conversion ratio, through catalyst reaction device 400 process combustion product gases in carbon monoxide content too high time, send prompting by modes such as word, pattern, sound.Thus, it is possible to when catalyst activity reduces timely more catalyst changeout, and then the security performance of this gas heater can be improved further.
In addition, according to another embodiment of the present utility model, this gas heater can comprise two smoke detectors 410, and one of them of two smoke detectors 410 can be arranged on combustion catalysis reaction unit 400 bottom, and another is arranged on combustion product gases and exports 230 places.Thus, it is possible to export the content of carbon monoxide in 230 places' detection combustion product gases at combustion product gases, and by the controller 600 electrically connected with smoke detectors 410 testing result based on two smoke detectors 410, calculate the conversion ratio of carbon monoxide.When the catalyst activity in catalyst reaction device 400 reduces, can not effectively the carbon monoxide in decomposition combustion flue gas time, namely too low at carbon monoxide conversion ratio, through catalyst reaction device 400 process combustion product gases in carbon monoxide content too high time, send prompting by modes such as word, pattern, sound.Thus, it is possible to when catalyst activity reduces timely more catalyst changeout, and then the security performance of this gas heater can be improved further.
Understand in order to convenient, below to utilizing the method for work according to the gas heater of this utility model embodiment to be briefly described.According to embodiment of the present utility model, with reference to Figure 15, the method specifically includes that
S100: water heater is started working
According to embodiment of the present utility model, in this step, utilize the combustion product gases that burner 100 produces in heat exchanger 200, the water flowing through water stream channel 250 to be heated, and export.Meanwhile, previously described burner 100 and catalyst reaction device 400 is utilized to reduce the content of nitrogen oxides and carbon monoxide in combustion product gases.Thus, it is possible to improve the security performance of this water heater and so as to more environmentally-friendly.
S200: smoke detectors detects
According to embodiment of the present utility model, in this step, multiple smoke detectors 410 carbon monoxide content in combustion product gases is detected, and by testing result transmission to the controller 600 electrically connected with smoke detectors 410.Thus, it is possible to improve the security performance of this gas heater further.
S300: judge that whether conversion ratio is lower than predetermined value
According to embodiment of the present utility model, in this step, controller 600, based on the testing result of above multiple smoke detectors 410, calculates carbon monoxide in combustion product gases and is converted into titanium dioxide charcoal percent conversion.When CO conversion is higher than predetermined value, the progress of work of gas heater is not sent interference by controller 600；When CO conversion is lower than predetermined value, controller 600 controls gas heater entrance guard mode and issue the user with warning, in order to change the catalyst in catalyst reaction device 400 in time.It should be noted that in this step, the concrete numerical value of predetermined value can be configured by those skilled in the art's actual requirement according to user and relevant emission standards.According to embodiment of the present utility model, when the conversion ratio of carbon monoxide is 30%～70%, it is believed that catalyst reaction device 400 can normal operation, the catalyst being disposed therein does not inactivate, it is not necessary to be replaced.According to a specific embodiment of the present utility model, it is possible to by the setting to controller 600 relevant parameter, sent alarm when CO conversion is less than 50% by controller 600, in order to more catalyst changeout.Thus, it is possible to ensure the catalytic effect of catalyst reaction device 400, and then improve the security performance of this gas heater further.
Additionally, with reference to Figure 14, can have following parts further according to the gas heater of this utility model embodiment, in order to improve the result of use of this gas heater further:
According to embodiment of the present utility model, this gas heater can have by one, machine: fuel gas inlet 101, gas ratio valve 102, blower fan 500 and blast switch 510.Fuel gas inlet 101 arranges on the housing 10 and is connected with gas ratio valve 102, and blower fan 500 is arranged in housing 10 and is connected with burner 100, and blast switch 510 is connected with blower fan 500.Thus, it is possible to by gas ratio valve 102 and blast switch 510, the ratio of combustion gas Yu air is adjusted before combustion gas is passed into burner 100, and then work efficiency and the combustion efficiency of burner 100 can be improved further.
According to embodiment of the present utility model, this gas heater can have further: water flow sensing unit 310 and water proportioning valve 320.Wherein, water proportioning valve 320 is connected with water flow sensing unit 310, and water flow sensing unit 310 is connected with water intaking valve 300, is supplied the discharge to gas fired water heater for detecting by water intaking valve 300, and regulate current ratio by water proportioning valve 320, in order to put forward the heat exchanger 200 heats to current.
Additionally, according to embodiment of the present utility model, in this gas heater, heat exchanger 200 can also have exhaust fume collecting hood 260 further.Exhaust fume collecting hood 260 exports 230 with combustion product gases and is connected, and for combustion product gases is collected, exports 230 these gas heaters of discharge then through combustion product gases.
It should be noted that the gas heater that the utility model proposes has all the other essential element that the gas heater that those skilled in the art are familiar with has further to realize the function of this gas heater.In this utility model, term " essential element " refers in particular to that have in existing gas heater and is realize parts necessary to its function, does not repeat them here.It should be noted that under the premise not paying creative work, belong to protection domain of the present utility model for all improvement made based on gas heater of the present utility model.
In description of the present utility model, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", the orientation of the instruction such as " interior " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more these features.In description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.
In description of the present utility model, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in this utility model.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " specific embodiment ", " example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment of the present utility model or example.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that: these embodiments can being carried out multiple change, amendment, replacement and modification when without departing from principle of the present utility model and objective, scope of the present utility model is limited by claim and equivalent thereof.
Claims (29)
1. a gas heater, it is characterised in that including:
Housing；
Heat exchanger, described heat exchanger is located at described enclosure interior；
Shade burner, described shade burner is arranged on described enclosure interior and is connected with described heat exchanger；
Catalyst reaction device, described catalyst reaction device is arranged on described enclosure interior and is connected with described heat exchanger；
Smoke detectors, described smoke detectors is connected with described heat exchanger；And
Controller, described controller is arranged on described enclosure interior, and electrically connects with described smoke detectors.
2. gas heater according to claim 1, it is characterised in that described heat exchanger includes:
Holding tank；
Mounting seat, described mounting seat is located in described holding tank,
Wherein, described catalyst reaction device individually and removably with described mounting seat is connected.
3. gas heater according to claim 2, it is characterized in that, described heat exchanger includes: upper machine body, lower body and connecting portion, described upper machine body and described lower body are arranged spaced apart in the vertical direction, described connecting portion is located between described upper machine body and lower body, and be connected with described upper machine body and lower body respectively, limit the described holding tank of a side opening between described upper machine body, lower body and connecting portion.
4. gas heater according to claim 3, it is characterised in that described upper machine body, described lower body and described connecting portion are integrally formed.
5. gas heater according to claim 2, it is characterised in that described mounting seat is embedded in described holding tank.
6. gas heater according to claim 5, it is characterised in that described mounting seat is located in described holding tank by securing member.
7. gas heater according to claim 5, it is characterised in that described mounting seat is located in described holding tank by welding.
8. the gas heater according to claim 6 or 7, it is characterised in that described mounting seat is formed as frame-shaped construction.
9. gas heater according to claim 8, it is characterised in that described heat exchanger also includes: installing lid, described lid of installing is detachably connected with described mounting seat, and described catalyst reaction device is located at described installation and covers.
10. gas heater according to claim 9, it is characterised in that described installation lid is connected by screw or snap with described mounting seat.
11. gas heater according to claim 9, it is characterised in that described catalyst reaction device is fixed on the described inner side installing lid.
12. gas heater according to claim 1, it is characterised in that described shade burner includes:
Shade burner housing；
Dense fuel injector；And
Light fuel injector,
Wherein, described shade burner housing has the light burning shell portion being connected with each other and dense burning shell portion, described shade burner housing is along the demarcation line bending in described light burning shell portion and described dense burning shell portion, to limit light fuel hybrid chamber in described light burning shell portion, and limit, between described light burning shell portion and described dense burning shell portion, the dense fuel hybrid chamber being positioned at described light fuel hybrid chamber both sides, described shade burner housing is provided with the light fire hole connected with described light fuel hybrid chamber and connects and be positioned at the dense fire hole of described light fire hole both sides with described dense fuel hybrid chamber, described dense fire hole is positioned at the bending part of described shade burner housing, described light fuel injector is located on described shade burner housing and connects with described light fuel hybrid chamber, described dense fuel injector is located on described shade burner housing and connects with described dense fuel hybrid chamber.
13. gas heater according to claim 12, it is characterised in that described dense fuel injector is positioned at above described light fuel injector.
14. gas heater according to claim 12, it is characterised in that described shade burner farther includes: light fuel guide member, described light fuel guide member is located in described light fuel hybrid chamber, and described light fire hole is located on described light fuel guide member.
15. gas heater according to claim 12, it is characterised in that in described shade burner, described dense fire hole and described light fire hole all upward and described dense fire hole higher than described light fire hole.
16. gas heater according to claim 12, it is characterised in that in described shade burner, respectively multiple and along described light burning shell portion and described dense burning shell portion the demarcation line of the dense fire hole of every side of described light fire hole is spaced.
17. gas heater according to claim 12, it is characterised in that in described shade burner, described light burning shell portion and described dense burning shell portion are integrated part.
18. gas heater according to claim 12, it is characterized in that, in described shade burner, described shade burner housing includes two sub-plate bodys, two described daughter board body bendings respectively and being bolted together, limiting described dense fuel hybrid chamber respectively after limiting described light fuel hybrid chamber and each described daughter board body bending between two described daughter board bodies, described dense fire hole is at least two and the bending part being respectively provided at two described daughter board bodies.
19. gas heater according to claim 1, it is characterised in that described heat exchanger is connected by screw with described shade burner, described heat exchanger is arranged on the top of described shade burner.
20. gas heater according to claim 3, it is characterised in that described heat exchanger includes:
Combustion product gases entrance, described combustion product gases entrance is arranged on described lower body, and is connected with described shade burner；And
Combustion product gases exports, and the outlet of described combustion product gases is arranged on described upper machine body.
21. gas heater according to claim 1, it is characterised in that be provided with catalyst in described catalyst reaction device.
22. gas heater according to claim 21, it is characterised in that described catalyst is noble metal carrier catalyst, and described noble metal carrier catalyst includes: carrier and carried noble metal.
23. gas heater according to claim 21, it is characterised in that described catalyst includes: carrier, additive, perovskite type rare-earth oxide, Cu element, Mn element or Co element.
24. gas heater according to claim 23, it is characterised in that in described catalyst, described perovskite type rare-earth oxide is La0.6Sr0.4Co0.8Fe0.2O3, described carrier is γ-Al3O2, described additive is at least one of Pt, Pd and Rh element,
Wherein, based on the gross mass of described catalyst, the content of described RE perovskite type rare earth oxide is 2～21 mass %, described γ-Al3O2The content of carrier is 78～97 mass %, and the content of described additive is 1 mass %.
25. gas heater according to claim 1, it is characterised in that farther include:
Water intaking valve, described water intaking valve is arranged on the housing；
Outlet valve, described outlet valve is arranged on the housing；And
Water stream channel, described water stream channel one end is connected with described water intaking valve, and the other end is connected with described outlet valve, is arranged on the outer wall of described heat exchanger to the coiling of described water stream channel.
26. gas heater according to claim 1, it is characterised in that farther include:
Water intaking valve, described water intaking valve is arranged on the housing；
Outlet valve, described outlet valve is arranged on the housing；And
Water stream channel, described water stream channel one end is connected with described water intaking valve, and the other end is connected with described outlet valve, described water stream channel be at least partially disposed in described internal heat exchanger.
27. gas heater according to claim 20, it is characterised in that include multiple described smoke detectors, and at least one of multiple described smoke detectors is arranged on described combustion product gases exit.
28. gas heater according to claim 20, it is characterised in that include two described smoke detectors, said two smoke detectors is separately positioned on the bottom of described catalyst reaction device and the top of described catalyst reaction device.
29. gas heater according to claim 20, it is characterised in that include two described smoke detectors, said two smoke detectors is separately positioned on the bottom of described catalyst reaction device and described combustion product gases exit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015210396452 | 2015-12-10 | ||
| CN201521039645 | 2015-12-10 |
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| CN205351733U true CN205351733U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521142014.3U Active CN205351776U (en) | 2015-12-10 | 2015-12-31 | Gas water heater |
| CN201521142015.8U Active CN205351733U (en) | 2015-12-10 | 2015-12-31 | Gas water heater |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521142014.3U Active CN205351776U (en) | 2015-12-10 | 2015-12-31 | Gas water heater |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2018094751A1 (en) * | 2016-11-25 | 2018-05-31 | 芜湖美的厨卫电器制造有限公司 | Burner and gas water heater provided with same |
| CN109838887A (en) * | 2017-11-28 | 2019-06-04 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN109838886A (en) * | 2017-11-28 | 2019-06-04 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN109838915A (en) * | 2017-11-28 | 2019-06-04 | 芜湖美的厨卫电器制造有限公司 | Catalyst reaction device and gas heater |
| CN110081613A (en) * | 2019-04-15 | 2019-08-02 | 青岛经济技术开发区海尔热水器有限公司 | A kind of control method and gas heater of gas heater |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018058928A1 (en) * | 2016-09-30 | 2018-04-05 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN111692754A (en) * | 2019-03-14 | 2020-09-22 | 芜湖美的厨卫电器制造有限公司 | Combustion heat exchange assembly and gas water heater with same |
| CN112747315B (en) * | 2021-01-06 | 2021-12-24 | 宁波方太厨具有限公司 | Water-cooling thick and thin heat exchanger burner group and gas furnace |
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2015
- 2015-12-31 CN CN201521142014.3U patent/CN205351776U/en active Active
- 2015-12-31 CN CN201521142015.8U patent/CN205351733U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018094751A1 (en) * | 2016-11-25 | 2018-05-31 | 芜湖美的厨卫电器制造有限公司 | Burner and gas water heater provided with same |
| CN109838887A (en) * | 2017-11-28 | 2019-06-04 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN109838886A (en) * | 2017-11-28 | 2019-06-04 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN109838915A (en) * | 2017-11-28 | 2019-06-04 | 芜湖美的厨卫电器制造有限公司 | Catalyst reaction device and 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 |
| CN110081613A (en) * | 2019-04-15 | 2019-08-02 | 青岛经济技术开发区海尔热水器有限公司 | A kind of control method and gas heater of gas heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205351776U (en) | 2016-06-29 |
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Effective date of registration: 20220920 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241009 Meimei Kitchen and Sanitary Industrial Park, Wanchun East Road, East District, Wuhu Economic and Technological Development Zone, Anhui Province Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. Patentee before: MIDEA GROUP Co.,Ltd. |
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