CN109708299A - Gas heater - Google Patents
Gas heater Download PDFInfo
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- CN109708299A CN109708299A CN201711018017.XA CN201711018017A CN109708299A CN 109708299 A CN109708299 A CN 109708299A CN 201711018017 A CN201711018017 A CN 201711018017A CN 109708299 A CN109708299 A CN 109708299A
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- Prior art keywords
- gas
- catalytic burner
- combustion
- burning
- gas heater
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- 230000003197 catalytic effect Effects 0.000 claims abstract description 73
- 238000002485 combustion reaction Methods 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 165
- 238000002156 mixing Methods 0.000 claims description 45
- 239000000567 combustion gas Substances 0.000 claims description 35
- 238000006555 catalytic reaction Methods 0.000 claims description 21
- 238000009826 distribution Methods 0.000 claims description 15
- 239000003517 fume Substances 0.000 claims description 10
- 230000000977 initiatory effect Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 8
- 239000003054 catalyst Substances 0.000 description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002937 thermal insulation foam Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The present invention discloses a kind of gas heater, is provided with cold water inlet and hot water outlet pipe, and the gas heater includes: shell, and inside forms combustion chamber；Catalytic burner is mounted in the combustion chamber；Preheated burning device is mounted in the combustion chamber and is adjacently positioned with the catalytic burner, and the preheated burning device acts on the catalytic burner when burning to heat the catalytic burner；Heat exchanger, one end of heat exchanger is connected to the cold water inlet, the other end is connected to the hot water outlet pipe, and the heat exchanger is used to absorb the heat that the preheated burning device burning and catalytic burner burning generate and the heat of absorption is carried out heat with the water inside heat exchanger and exchanges.The structure of gas heater of the present invention is simple, compact, and can sufficiently improve energy utilization rate and reduce the discharge of harmful substance.
Description
Technical field
The present invention relates to combustion heat-exchange technical field, in particular to a kind of gas heater.
Background technique
Currently, structure is complicated for traditional gas heater, the combustion system mainly used for flaming combustion, i.e., fuel with
The Fast exothermic and the oxidation reaction for shining and occurring in the form of flame that oxygen or air carry out.This combustion system is not only
Incomplete combustion, heat exchange efficiency are low, energy utilization rate is not high, and the pollutant generated in combustion process is more, are to cause mist
One of the main reason for haze weather takes place frequently.
Summary of the invention
The main object of the present invention is to propose a kind of gas heater, it is intended to solve gas heater structure in the prior art
The technical issues of complicated, energy utilization rate is low and harmful substance easily generated.
To achieve the above object, a kind of gas heater proposed by the present invention, is provided with cold water inlet and hot water effluent
Pipe, the gas heater include:
Shell, inside form combustion chamber；
Catalytic burner is mounted in the combustion chamber；
Preheated burning device is mounted in the combustion chamber and is adjacently positioned with the catalytic burner, the preheated burning
Device directly acts on the catalytic burner when burning to heat the catalytic burner；
Heat exchanger, one end of heat exchanger are connected to the cold water inlet, and the other end is connected to the hot water outlet pipe, described to change
Hot device be used to absorb the heat that preheated burning device burning and catalytic burner burning generate and by the heat of absorption and
Water inside heat exchanger carries out heat exchange.
Preferably, the catalytic burner and the preheated burning device are from top to bottom distributed side by side, the catalytic burner
It is in honeycomb structure with the preheated burning device.
Preferably, the position that the catalytic burner and the preheated burning device are corresponded on the Inner Wall of Combustion Chamber is provided with
Thermal insulation layer.
Preferably, the gas heater further includes gas distributor and air supply plant, and the gas distributor is used for will
The combustion gas of the air supply plant conveying and combustion-supporting gas are delivered to the combustion chamber.
Preferably, gas distribution chamber is formed inside the gas distributor, described in one end connection of the gas distribution chamber
Combustion chamber, the other end of the gas distribution chamber are connected to the gas outlet of the air supply plant, the cross section of the gas distribution chamber
Product is gradually increased along the direction of the air supply plant to the combustion chamber.
Preferably, the shell is located at the top of the gas distributor and is integrated with the gas distributor, described
The lower end of shell is open, and the upper end of the gas distributor is open and matches with the lower end opening of the shell.
Preferably, the air supply plant includes blower and pre-mixing apparatus, and the pre-mixing apparatus is provided with gas inlet, helps
Combustion gas inlet and mixed gas gas outlet, the air inlet of the blower are connected to the mixed gas outlet of the pre-mixing apparatus
Mouthful, the gas outlet of the blower is connected to the gas distributor.
Preferably, the pre-mixing apparatus is venturi gas mixing device.
Preferably, exhaust fume collecting hood is formed on the top of the shell, and the heat exchanger is located at the exhaust fume collecting hood and catalysis combustion
Between burner.
Preferably, the gas heater further includes temperature sensor and the control that is electrically connected with the temperature sensor
Device, the temperature sensor are used to detect the temperature of the catalytic burner, and the controller is used in the gas heater
When starting, the preheated burning device burning is controlled to heat the catalytic burner, and reach in the temperature of the catalytic burner
The preheated burning device is controlled when more than to catalysis initiation temperature to extinguish.
Gas heater of the present invention by being arranged catalytic burner in the combustion chamber, first with what is carried out on preheated burning device
Flaming combustion, when the temperature of catalytic burner reaches preset catalysis initiation temperature or more, the mixed gas of air and combustion gas
Catalysis burning of controlling oneself can occur on catalytic burner, because of the catalytic action of catalyst, combustion gas is at a lower temperature
It burns on catalytic burner, and combustion gas is discharged close to completely burned almost without CO.Due to the cigarette after catalysis burning
Temperature degree it is lower than the temperature of flaming combustion and burning relatively safety, it can be achieved that nitrogen oxides low emission.Therefore, with flaming combustion
It compares, catalysis burning is a kind of relative efficiency, clean combustion system, is replaced with relative efficiency, clean catalysis burning traditional
Flaming combustion, can effectively improve energy utilization rate and reduce harmful substance discharge.Meanwhile catalytic burner and preheated burning
Device is adjacently positioned, and the heat that preheated burning device generates when burning directly acts on catalytic burner, both reduces heat loss, into
And energy utilization rate and the heating efficiency to catalytic burner are improved, reduce the discharge of harmful substance, and make combustion gas hot
The structure of hydrophone is simple, compact.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of gas heater of the embodiment of the present invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title | Label | Title |
| 1 | Cold water inlet | 2 | Hot water outlet pipe | 3 | Shell |
| 30 | Combustion chamber | 31 | Smoke exhaust pipe | 32 | Thermal insulation layer |
| 33 | Exhaust fume collecting hood | 4 | Catalytic burner | 5 | Preheated burning device |
| 6 | Air supply plant | 61 | Blower | 62 | Pre-mixing apparatus |
| 7 | Heat exchanger | 8 | Gas distributor | 80 | Gas distribution chamber |
| 9 | Gas inlet pipeline | 91 | Gas inlet valve |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of gas heater.
In embodiments of the present invention, as shown in Figure 1, the gas heater is provided with cold water inlet 1 and hot water outlet pipe
2, gas heater includes:
Shell 3, inside form combustion chamber 30；
Catalytic burner 4 is mounted in combustion chamber 30；
Preheated burning device 5 is mounted in combustion chamber 30 and is adjacently positioned with catalytic burner 4, when preheated burning device 5 burns
Catalytic burner 4 is directly acted on heatable catalytic burner 4；
Heat exchanger 7, one end of heat exchanger 7 are connected to cold water inlet 1, and the other end is connected to hot water outlet pipe 2, and heat exchanger 7 is used
In absorbing heat that the burning of preheated burning device 5 and the burning of catalytic burner 4 generate and will be inside the heat of absorption and heat exchanger 7
Water carries out heat exchange.
In the present embodiment, smoke outlet is offered on shell 3 and gas heater is provided with the row to connect with smoke outlet
Smoke pipe 31.
Catalytic burner 4 generally comprises the catalyst of catalyst carrier and setting on a catalyst support, and catalyst is logical
Often with there is a fixed catalysis initiation temperature, i.e., after the temperature of catalytic burner 4 itself reaches catalysis initiation temperature, flow through its
Combustion gas will carry out flameless combustion with the oxygen in air under the action of catalyst to discharge heat.Catalyst carrier is typically chosen
It is made using thermal coefficient is higher with the higher porous material of radiation attenuation coefficient.
Preheated burning device 5 is for heating catalytic burner 4.Preheated burning device 5 can choose using thermal coefficient
The higher porous material production of smaller and radiation attenuation coefficient.For example, gas heater further includes igniter (not shown),
Igniter is for lighting the combustion gas of the injection from preheated burning device 5.
As shown in Figure 1, the catalytic burner 4 of the present embodiment is adjacently positioned with preheated burning device 5, i.e. 4 He of catalytic burner
Spacing very little between preheated burning device 5, preheated burning device 5 directly act on catalytic burner 4, i.e. preheated burning device when burning
The heat generated when 5 burning passes to catalytic burner 4 without going through the channel of a distance, but directly acts on catalysis combustion
Burner 4 absorbs the heat that generates when preheated burning device 5 burns maximumlly conducive to catalytic burner 4 to improve the temperature of itself.
The cold water inlet 1 of the present embodiment is used to introduce cold water externally to gas heater, and cold water is sent into and is exchanged heat
Device 7, heat exchanger 7 absorb the burning of preheated burning device 5 and cold water are heated into hot water with after the heat of the burning generation of catalytic burner 4,
Hot water draws gas heater by hot water outlet pipe 2.
Gas heater of the present invention is enterprising first with preheated burning device 5 by the way that catalytic burner 4 is arranged in combustion chamber 30
Capable flaming combustion, when the temperature of catalytic burner 4 reaches preset catalysis initiation temperature or more, the mixing of air and combustion gas
Catalysis burning of controlling oneself can occur on catalytic burner 4 for gas, because of the catalytic action of catalyst, combustion gas is at a lower temperature
It can burn on catalytic burner 4, and combustion gas is discharged close to completely burned almost without CO.Since catalysis is burnt
Flue-gas temperature afterwards it is lower than the temperature of flaming combustion and burning relatively safety, it can be achieved that nitrogen oxides low emission.Therefore, with have
Flame burning is compared, and catalysis burning is a kind of relative efficiency, clean combustion system, with relative efficiency, clean catalysis burning generation
For traditional flaming combustion, energy utilization rate can be effectively improved and reduce the discharge of harmful substance.Meanwhile catalytic burner 4 with
Preheated burning device 5 is adjacently positioned, and the heat that preheated burning device 5 generates when burning directly acts on catalytic burner 4, is both reduced
Heat loss, and then energy utilization rate and the heating efficiency to catalytic burner 4 are improved, reduce the discharge of harmful substance,
Make the structure of gas heater simple, compact again.
Further, as shown in Figure 1, catalytic burner 4 and preheated burning device 5 in the present embodiment from top to bottom divide side by side
Cloth heats catalytic burner 4 conducive to preheated burning device 5, and makes gas heater structure more compact.It is preferred that
The catalytic burner 4 on ground, the present embodiment is in honeycomb structure, increases the bond area of catalyst, and then increases catalysis and make
With space, energy utilization rate and efficiency of combustion are further improved.The preheated burning device 5 of the present embodiment is also in honeycomb structure,
Not only it is conducive to realize the heating to catalytic burner 4, but also can effectively prevent and be tempered in combustion.
In the present embodiment, corresponded on 30 inner wall of combustion chamber catalytic burner 4 and preheated burning device 5 position be provided with it is heat-insulated
Layer 32.In the present embodiment, thermal insulation layer 32 can be realized by pasting heat insulation foam or coating heat insulating coating in 30 inner wall of combustion chamber
Setting, because its ambient temperature is higher when catalytic burner 4 and preheated burning device 5 burn, on the one hand the setting of thermal insulation layer 32 subtracts
Lack the loss of heat, on the other hand avoids the temperature on 3 surface of shell excessively high.
In the present embodiment, gas heater further includes gas distributor 8 and air supply plant 6, and air supply plant 6 is used for gas
Delivery of fuel gas and combustion-supporting gas in distributor 8, the combustion-supporting gas that the present embodiment gas heater uses is air.Gas distributor
8 between combustion chamber 30 and air supply plant 6, and for air that air supply plant 6 conveys and combustion gas to be equably delivered to combustion
Room 30 is burnt, so that preheated burning device 5 and catalytic burner 4 burn.Specifically, as shown in Figure 1, being formed inside gas distributor 8
Gas distribution chamber 80, one end of gas distribution chamber 80 are connected to combustion chamber 30, and the other end of gas distribution chamber 80 is connected to air supply plant 6
Gas outlet, the cross-sectional area of gas distribution chamber 80 is gradually increased along the direction of air supply plant 6 to combustion chamber 30.
Air and combustion gas are sent into gas distribution chamber 80, air and the combustion gas Xiang Ran in gas distribution chamber 80 by air supply plant 6
It is gradually spread during burning the movement of room 30, conducive to the preheated burning device 5 and catalytic burner 4 and air being located in combustion chamber 30
Come into full contact with combustion gas, achieve the purpose that completely burned, further reduced the discharge of harmful substance, improve efficiency of combustion and
Energy utilization rate.
In the present embodiment, shell 3 is located at the top of gas distributor 8 and is integrated with gas distributor 8, convenient for production.
The lower end of shell 3 is open, and the upper end of gas distributor 8 is open simultaneously to be matched with the lower end opening of shell 3, and gas distributor 8 can incite somebody to action
Air and combustion gas in it are maximumlly sent into combustion chamber 30, convenient for improving flow of supplying gas.
In the present embodiment, air supply plant 6 includes blower 61 and pre-mixing apparatus 62, and pre-mixing apparatus 62 is provided with gas inlet
Mouth, combustion-supporting gas air inlet and mixed gas gas outlet, the mixed gas outlet of the air inlet connection pre-mixing apparatus 62 of blower 61
Mouthful, the gas outlet of blower 61 is connected to gas distributor 8.Combustion gas enters pre-mixing apparatus 62 by gas inlet, and air is by helping
Combustion gas inlet enters after pre-mixing apparatus 62, air and combustion gas mixs in pre-mixing apparatus 62 formation mixed gas and from mixing
Gas outlet outflow, then entering inside blower 61 by the air inlet of blower 61, mixed gas is passed through in blower 61
The gas outlet that blade passes through blower 61 after mixing evenly enters gas distributor 8.Existing skill can be used in the blower 61 of the present embodiment
Art, this will not be detailed here.The small volume that the blower 61 and pre-mixing apparatus 62 of the present embodiment occupy, so that the knot of gas heater
Structure is compact.
The mixing of air and combustion gas occurs before entering blower 61 in the present embodiment, i.e., empty by the way of preceding premix
Gas and combustion gas are first passed through after pre-mixing apparatus 62 mixes and are stirred again by the blade of blower 61, keep air and combustion gas mixing uniform, into
One step accelerates the burning velocity of combustion gas, reduces the discharge of harmful substance, improves energy utilization rate.
In the present embodiment, pre-mixing apparatus 62 is venturi gas mixing device, and gas heater has gas inlet pipeline 9 and helps
Combustion gas body air inlet pipeline (not shown), the gas inlet of venturi gas mixing device are connected to the gas outlet of gas inlet pipeline 9,
The combustion-supporting gas air inlet of venturi gas mixing device is connected to the gas outlet of combustion-supporting gas air inlet pipeline.The combustion gas heat of the present embodiment
Hydrophone further include for control gas inlet pipeline 9 to venturi gas mixing device be sent into combustion gas gas inlet valve 91, combustion gas into
The prior art can be used in air valve 91, and this will not be detailed here.
Venturi gas mixing device can use the prior art, and venturi gas mixing device is first to shrink the pipe being then gradually expanded
Road offers adsorbent chamber in pipeline exit；After being compressed by the air-flow of venturi gas mixing device from the coarse to fine, flow velocity becomes
Greatly, Venturi effect is generated, i.e., can generate low pressure near swiftly flowing fluid, to generate suction-operated, causes surrounding
Gas is inhaled into pipeline by adsorbent chamber.Combustion gas enters venturi from gas inlet by gas inlet pipeline 9 and mixes gas dress
In the mixing chamber set, air enters the mixed of venturi gas mixing device from combustion-supporting gas air inlet by combustion-supporting gas air inlet pipeline
It closes intracavitary.It, can be using air as gas compressed, using combustion gas as being inhaled by the Venturi effect of venturi gas mixing device
Attached gas makes air and combustion gas realize adequately mixing, to keep burning more abundant.
In another embodiment, the mode that the mixing of air and combustion gas premixes after can be used, the gas outlet connection of blower 61
The combustion-supporting gas air inlet of venturi gas mixing device, gas inlet pipeline 9 are connected to the gas inlet of venturi gas mixing device, text
The mixed gas gas outlet of gas mixing device is connected to gas distributor 8 in mound.I.e. blower 61 is sent into air to venturi gas mixing device,
Gas inlet pipeline 9 is sent into combustion gas to venturi gas mixing device, and air and combustion gas mix in the mixing chamber of venturi gas mixing device
Gas distributor 8 is sent into after conjunction.Have the advantages that structure is simple, is convenient for assembly by the way of premixing after.
In the present embodiment, exhaust fume collecting hood 33 is formed on the top of shell 3, and smoke outlet is opened in exhaust fume collecting hood 33, and heat exchanger 7 is located at collection
Between petticoat pipe 33 and catalytic burner 4.Preheated burning device 5 and catalytic burner 4 burning generate high-temperature flue gas and heat exchanger 7 into
After row heat exchange, gas heater is discharged by smoke outlet.Further, the roof of exhaust fume collecting hood 33 has leading towards heat exchanger 7
Stream interface.Downwards, the thermal current that the burning of catalytic burner 4 generates flows up the water conservancy diversion of roof, and the setting of guide face can be right
The commutation guiding that the thermal current of roof is more mitigated is flowed to, allows thermal current along the roof and side wall of exhaust fume collecting hood 33
More swimmingly flow out exhaust fume collecting hood 33.In practical applications, the roof of exhaust fume collecting hood 33 can be set as the arc-shaped of water conservancy diversion downwards, circular arc
The roof of shape helps that thermal current is made to form convection current, to reach preferably guiding commutation effect.
In the present embodiment, heat exchanger 7 is finned heat exchanger 7, and finned heat exchanger 7 has biggish heat exchange area, mentions
The high heat exchange efficiency of gas heater.
In the present embodiment, gas heater further includes temperature sensors (not shown) and controller (not shown), control
Device processed is electrically connected with temperature sensor.Temperature sensor is used to detect the temperature of the catalytic burner 4, and controller is for firing
When gas water heater starts, the control burning of preheated burning device 5 is reached with heatable catalytic burner 4 in the temperature of catalytic burner 4
Control preheated burning device 5 extinguishes when being catalyzed initiation temperature or more.Specifically, reach catalysis ignition in the temperature of catalytic burner 4
When more than temperature, controller control blower 61 increases the air inlet of the mixed gas formed after air and combustion gas mixing in the unit time
It measures so that the de- fire that the extinguishing of preheated burning device 5, i.e. controller reach preheated burning device 5 by controlling the intake velocity of mixed gas
Linear velocity can be such that the flame on preheated burning device 5 quickly extinguishes, and then switch to the catalysis burning by catalytic burner 4.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all in the present invention
Inventive concept under, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/be used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (10)
1. a kind of gas heater, is provided with cold water inlet and hot water outlet pipe, which is characterized in that the gas heater packet
It includes:
Shell, inside form combustion chamber；
Catalytic burner is mounted in the combustion chamber；
Preheated burning device is mounted in the combustion chamber and is adjacently positioned with the catalytic burner, the preheated burning device combustion
The catalytic burner is directly acted on when burning to heat the catalytic burner；
Heat exchanger, one end of heat exchanger are connected to the cold water inlet, and the other end is connected to the hot water outlet pipe, the heat exchanger
For absorbing the heat of preheated burning device burning and catalytic burner burning generation and by the heat of absorption and heat exchange
Water inside device carries out heat exchange.
2. gas heater as described in claim 1, which is characterized in that the catalytic burner and the preheated burning device by
It is distributed side by side under, the catalytic burner and the preheated burning device are in honeycomb structure.
3. gas heater as described in claim 1, which is characterized in that correspond to the catalysis burning on the Inner Wall of Combustion Chamber
The position of device and the preheated burning device is provided with thermal insulation layer.
4. gas heater as described in claim 1, which is characterized in that the gas heater further include gas distributor and
Air supply plant, the gas distributor are used to combustion gas that the air supply plant conveys and combustion-supporting gas being delivered to the burning
Room.
5. gas heater as claimed in claim 4, which is characterized in that form gas distribution inside the gas distributor
Chamber, one end of the gas distribution chamber are connected to the combustion chamber, and the other end of the gas distribution chamber is connected to the air supply plant
Gas outlet, the cross-sectional area of the gas distribution chamber is gradually increased along the direction of the air supply plant to the combustion chamber.
6. gas heater as claimed in claim 5, which is characterized in that the shell is located at the top of the gas distributor
And be integrated with the gas distributor, the lower end of the shell is open, the upper end of the gas distributor it is open and with it is described
The lower end opening of shell matches.
7. gas heater as claimed in claim 4, which is characterized in that the air supply plant includes blower and pre-mixing apparatus,
The pre-mixing apparatus is provided with gas inlet, combustion-supporting gas air inlet and mixed gas gas outlet, the air inlet of the blower
It is connected to the mixed gas gas outlet of the pre-mixing apparatus, the gas outlet of the blower is connected to the gas distributor.
8. gas heater as claimed in claim 7, which is characterized in that the pre-mixing apparatus is venturi gas mixing device.
9. such as gas heater of any of claims 1-8, which is characterized in that collection cigarette is formed on the top of the shell
Cover, the heat exchanger is between the exhaust fume collecting hood and the catalytic burner.
10. such as gas heater of any of claims 1-8, which is characterized in that the gas heater further includes
Temperature sensor and the controller being electrically connected with the temperature sensor, the temperature sensor is for detecting the catalysis burning
The temperature of device, the controller are used in gas heater starting, control the preheated burning device burning to heat
Catalytic burner is stated, and controls the preheated burning device when the temperature of the catalytic burner reaches catalysis initiation temperature or more
Extinguish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711018017.XA CN109708299A (en) | 2017-10-25 | 2017-10-25 | Gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711018017.XA CN109708299A (en) | 2017-10-25 | 2017-10-25 | Gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109708299A true CN109708299A (en) | 2019-05-03 |
Family
ID=66252832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711018017.XA Pending CN109708299A (en) | 2017-10-25 | 2017-10-25 | Gas heater |
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| CN (1) | CN109708299A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260309A (en) * | 2019-06-06 | 2019-09-20 | 华帝股份有限公司 | Air heating device and gas water heater |
| CN112254331A (en) * | 2019-07-22 | 2021-01-22 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN112303912A (en) * | 2019-07-31 | 2021-02-02 | 芜湖美的厨卫电器制造有限公司 | Gas combustion equipment |
| CN112303911A (en) * | 2019-07-31 | 2021-02-02 | 芜湖美的厨卫电器制造有限公司 | Gas combustion equipment |
| CN112303913A (en) * | 2019-07-31 | 2021-02-02 | 芜湖美的厨卫电器制造有限公司 | Gas combustion equipment |
| CN112303910A (en) * | 2019-07-31 | 2021-02-02 | 芜湖美的厨卫电器制造有限公司 | Gas combustion equipment |
| CN112577197A (en) * | 2019-09-30 | 2021-03-30 | 芜湖美的厨卫电器制造有限公司 | Gas water heater and control method thereof |
| CN112682780A (en) * | 2019-10-17 | 2021-04-20 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| WO2022089616A1 (en) * | 2020-10-30 | 2022-05-05 | 芜湖美的厨卫电器制造有限公司 | Combustor and gas equipment |
| CN114459142A (en) * | 2020-10-30 | 2022-05-10 | 芜湖美的厨卫电器制造有限公司 | Combustion heat exchange assembly and gas water heater |
| CN114623442A (en) * | 2022-04-11 | 2022-06-14 | 西安交通大学 | Integral gradual change type porous medium combustor and working method thereof |
| CN114623443A (en) * | 2022-04-11 | 2022-06-14 | 西安交通大学 | Sectional type porous medium burner and working method thereof |
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