CN215175014U - Combustor and gas heater - Google Patents
Combustor and gas heater Download PDFInfo
- Publication number
- CN215175014U CN215175014U CN202120393531.7U CN202120393531U CN215175014U CN 215175014 U CN215175014 U CN 215175014U CN 202120393531 U CN202120393531 U CN 202120393531U CN 215175014 U CN215175014 U CN 215175014U
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- gas
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- fire grate
- burner
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses a combustor and gas heater. The combustor comprises a shell, a fire grate component, a fuel gas injection component, a first fuel gas pipe and a second fuel gas pipe; a first combustion chamber and a second combustion chamber which are communicated in sequence are formed in the shell; the fire grate assembly is used for generating preheating combustion in the first combustion chamber and heating the flue gas in the first combustion chamber to a target temperature; the fuel gas injection assembly is used for injecting fuel gas into the second combustion chamber so as to enable the second combustion chamber to carry out high-temperature air combustion reaction; a first proportional valve is arranged on the first gas pipe; and a second proportional valve is arranged on the second gas pipe. The utility model discloses technical scheme realizes can distributing the gas volume in first combustion chamber and the second combustion chamber according to the heat load demand that gas heater is different to guarantee to produce high temperature air combustion reaction in the second combustion chamber, reach abundant burning, reduce the effect that pollutants such as NOx and CO discharged.
Description
Technical Field
The utility model relates to a burning technical field, in particular to combustor and gas heater.
Background
The gas water heater transfers heat to cold water flowing through a heat exchanger in a combustion heating mode to realize hot water preparation. In the existing atmospheric gas water heater, the function of making hot water is realized by utilizing the fire row to release heat after burning in a combustion chamber. However, the mixing of the fuel gas and the air is not uniform, the combustion in the combustion chamber is not sufficient, pollutants such as NOx, CO and the like are easily generated, and the environmental pollution is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a combustor aims at solving among the current gas heater that the burning is insufficient in the combustion chamber, easily produces the technical problem of the emission of pollutants such as more NOx and CO.
In order to achieve the above purpose, the utility model provides a burner, which comprises a shell, a fire grate component, a fuel gas injection component, a first fuel gas pipe and a second fuel gas pipe; a first combustion chamber and a second combustion chamber which are communicated in sequence are formed in the shell; the fire grate assembly is arranged in the shell and used for generating preheating combustion in the first combustion chamber and heating the flue gas in the first combustion chamber to a target temperature; the fuel gas injection assembly is connected with the second combustion chamber and is used for injecting fuel gas into the second combustion chamber so as to enable high-temperature air combustion reaction to be carried out in the second combustion chamber; the first gas pipe is connected with the fire grate assembly, and a first proportional valve is arranged on the first gas pipe; the second gas pipe is connected with the gas injection assembly, and a second proportional valve is arranged on the second gas pipe.
The utility model discloses an in the embodiment, still be formed with in the casing and be used for setting up the installation room of fire row subassembly, the installation room with first combustion chamber intercommunication, the installation room is equipped with air inlet.
In an embodiment of the present invention, the fire grate component includes a fire grate gas distributing rod and a plurality of fire grate single bodies, which are communicated with the first gas pipe, and the fire grate gas distributing rod is connected with the plurality of fire grate single bodies; the fire row single body is used for ejecting air in the installation chamber and is mixed with fuel gas in the fire row single body to jet fire towards the first combustion chamber.
In an embodiment of the present invention, the fire row single bodies are distributed side by side, and two adjacent fire row single bodies form an air gap therebetween, and the air gap is communicated with the first combustion chamber.
The utility model discloses an in the embodiment, the gas injection subassembly include with the gas branch gas pole and a plurality of gas nozzle of second gas pipe intercommunication, it is a plurality of the one end of gas nozzle with the gas divides the gas pole intercommunication, and the other end is worn to locate the lateral wall of casing, with to second combustion chamber sprays the gas.
In an embodiment of the present invention, the burner includes at least two of the gas injection assemblies, and at least two of the gas injection assemblies are respectively disposed on two opposite sides of the second combustion chamber.
In an embodiment of the present invention, the plurality of gas nozzles located on the same side of the second combustion chamber are spaced apart; the plurality of gas nozzles positioned on the two opposite sides of the second combustion chamber are arranged oppositely or in a staggered way.
In an embodiment of the present invention, the burner further includes a gas supply pipe externally connected to a gas source, and the first gas pipe and the second gas pipe are connected to the gas supply pipe.
In an embodiment of the present invention, the first gas pipe is provided with a first switch valve.
In an embodiment of the present invention, a second switch valve is disposed on the second gas pipe.
The utility model discloses an in the embodiment, the combustor still includes the fan, the air-out side of fan with air inlet intercommunication.
In order to achieve the above object, the present invention further provides a gas water heater, comprising a heat exchanger and the above burner, wherein the heat exchanger is connected to a second combustion chamber of the burner to produce hot water by heat generated by the second combustion chamber; the combustor comprises a shell, a fire grate component, a fuel gas injection component, a first fuel gas pipe and a second fuel gas pipe; a first combustion chamber and a second combustion chamber which are communicated in sequence are formed in the shell; the fire grate assembly is arranged in the shell and used for generating preheating combustion in the first combustion chamber and heating the flue gas in the first combustion chamber to a target temperature; the fuel gas injection assembly is connected with the second combustion chamber and is used for injecting fuel gas into the second combustion chamber so as to enable high-temperature air combustion reaction to be carried out in the second combustion chamber; the first gas pipe is connected with the fire grate assembly, and a first proportional valve is arranged on the first gas pipe; the second gas pipe is connected with the gas injection assembly, and a second proportional valve is arranged on the second gas pipe.
The embodiment of the utility model provides an among the combustor, be formed with the first combustion chamber and the second combustion chamber that communicate in proper order in the casing, through set up fire row subassembly in the casing, in order to be used for producing at first combustion chamber flame throwing and preheat the burning, and carry the flue gas that produces the burning to the second combustion chamber, inject the subassembly through setting up the gas simultaneously and spray the gas towards the second combustion chamber, in order to reach the effect that the volume suction high temperature flue gas preheats gas and air, thereby produce high temperature air combustion reaction in the second combustion chamber. Meanwhile, in the embodiment, the first proportional valve is arranged on the first gas pipe connected with the fire grate assembly, and the second proportional valve is arranged on the second gas pipe connected with the gas injection assembly, so that the gas quantity in the first combustion chamber and the second combustion chamber can be distributed according to different heat load requirements of the gas water heater, and therefore, the high-temperature air combustion reaction in the second combustion chamber can be ensured, the full combustion is achieved, and the emission effects of pollutants such as NOx, CO and the like are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a gas water heater of the present invention;
fig. 2 is a schematic view of a burner according to an embodiment of the present invention;
fig. 3 is a schematic view of another structure of the burner according to the embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
320 | |
| 110 | |
410 | |
| 120 | |
411 | First |
| 130 | |
412 | |
| 131 | |
420 | |
| 200 | |
421 | Second |
| 210 | Fire grate |
422 | |
| 220 | Fire exhaust |
430 | |
| 201 | |
500 | |
| 300 | |
600 | |
| 310 | Gas nozzle |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a combustor is applicable to gas heater and uses gas combustion to produce high temperature hot water including gas hanging stove etc. and carry out relevant product and equipment that uses such as family's shower and heating, aims at effectively reducing the emission of pollutant (CO and NOx). For convenience of understanding, the following description will be given by way of example of application to a gas water heater.
In an embodiment of the present invention, as shown in fig. 1 to 3, the burner includes a housing 100, a fire grate assembly 200, a gas injection assembly 300, a first gas pipe 410, and a second gas pipe 420.
A first combustion chamber 110 and a second combustion chamber 120 which are communicated with each other in sequence are formed in the housing 100;
the fire row assembly 200 is disposed in the housing 100, and is configured to generate preheating combustion in the first combustion chamber 110 and heat the flue gas of the first combustion chamber 110 to a target temperature;
the gas injection assembly 300 is connected to the second combustion chamber 120, and is configured to inject gas into the second combustion chamber 120, so that a high-temperature air combustion reaction is performed in the second combustion chamber 120;
the first gas pipe 410 is connected with the fire grate assembly 200, and a first proportional valve 411 is arranged on the first gas pipe 410;
the second gas pipe 420 is connected to the gas injection assembly 300, and a second proportional valve 421 is disposed on the second gas pipe 420.
The first combustion chamber 110 and the second combustion chamber 120 which are sequentially communicated are formed in the casing 100, the fire grate assembly 200 can preheat and combust in the first combustion chamber 110, heat the first combustion chamber 110 to a target temperature, and convey high-temperature flue gas generated by combustion to the second combustion chamber 120, at this time, the fuel gas is sprayed into the second combustion chamber 120 through the fuel gas spraying assembly 300, the high-temperature flue gas conveyed from the first combustion chamber 110 can be entrained, the effect of diluting the fuel gas and air is achieved while preheating the fuel gas, so that a high-temperature air combustion (MILD combustion) reaction is generated, the second combustion chamber 120 is in a high-temperature low-oxygen environment, the temperature of the fuel gas and the air is higher than the self-ignition temperature of the fuel gas, the maximum temperature rise in the combustion process is lower than the self-ignition temperature of the fuel gas, and the volume fraction of oxygen is diluted to an extremely low concentration by combustion products. In this combustion state, compared to conventional combustion, the pyrolysis of the fuel is suppressed, the flame thickness becomes thicker, and the flame front disappears, so that the temperature is very uniform throughout the second combustion chamber 120, the combustion peak temperature is low and the noise is very small, and the emissions of pollutants NOx and CO are greatly reduced.
However, in practical applications, when the burner is applied to a gas water heater, since the combustion load requirements of the gas water heater are different in winter, summer and spring and autumn, the load requirements of the burner are different, and the heat load requirements of the first combustion chamber 110 and the second combustion chamber 120 are different according to the different load requirements, that is, the heat load requirement of the fire grate assembly 200 and the heat load requirement of the high-temperature air combustion are changed. Based on this, in the embodiment, the first gas pipe 410 is used for providing gas for the fire grate assembly 200, the second gas pipe 420 is used for providing gas for the second combustion chamber 120, and the first proportional valve 411 is arranged on the first gas pipe 410, and the second proportional valve 421 is arranged on the second gas pipe 420, so as to adjust the gas amount or the gas flow amount distributed into the fire grate assembly 200 and the second combustion chamber 120, and the like, thereby realizing the heat load distribution function in the first combustion chamber 110 and the second combustion chamber 120, and ensuring that a high-temperature air combustion reaction can be generated in the second combustion chamber 120.
It will be appreciated that the gas distribution in the first combustion chamber 110 and the second combustion chamber 120 is determined according to the actual situation, for example, when the gas water heater is operated at full load in winter, the heat load distribution in the first combustion chamber 110 and the second combustion chamber 120 can be 1:1, and the gas distribution in the two combustion chambers can be realized by adjusting the first proportional valve 411 and the second proportional valve 421. When the heat load demand of the gas water heater is smaller in summer, in order to ensure that the temperature in the first combustion chamber 110 is heated to the target temperature, the heat load of the first combustion chamber 110 can be distributed to be larger than that of the second combustion chamber 120, for example, 3:2, and at this time, the gas distribution in the two combustion chambers can be realized by adjusting the first proportional valve 411 and the second proportional valve 421, so as to ensure that the high-temperature air combustion reaction can be generated in the second combustion chamber 120. Similarly, when the season is spring and autumn, the heat load of the gas water heater can be determined according to the actual situation, the preheating burner can be partially opened or fully opened, and correspondingly, the gas distribution in the two combustion chambers can be realized by adjusting the first proportional valve 411 and the second proportional valve 421.
In practical application, the first proportional valve 411 and the second proportional valve 421 may independently control the first gas pipe 410 and the second gas pipe 420, or may be controlled by two proportional valves in a linkage manner, and the specific form of adjusting the gas flow rate and proportional distribution in the gas pipe may not be limited.
It should be noted that the target temperature of the high-temperature preheated air cannot be too low, and cannot be lower than 600 ℃, and is generally controlled to be 600 to 1200 ℃, so that when the high-temperature gas contacts with the gas and air in the second combustion chamber 120, better automatic combustion is realized, and ignition are no longer needed. The target temperature can be achieved by controlling the combustion time of the fire grate assembly 200, controlling the ratio of fuel gas to air, performing heat preservation, increasing the residence time of high-temperature gas in the first combustion chamber 110, and the like.
In this embodiment, the heat obtained after the combustion reaction of the high-temperature air in the second combustion chamber 120 can exchange heat with a heat exchanger in the gas water heater, so as to achieve the function of producing hot water.
The embodiment of the utility model provides an in the combustor, be formed with first combustion chamber 110 and the second combustion chamber 120 that communicate in proper order in casing 100, through set up fire row subassembly 200 in casing 100, in order to be used for producing at first combustion chamber 110 flame projecting and preheat the burning, and carry the flue gas that the burning produced to second combustion chamber 120, simultaneously through setting up gas injection subassembly 300 towards second combustion chamber 120 injection gas, in order to reach the effect that the volume suction high temperature flue gas preheats gas and air, thereby produce high temperature air combustion reaction in second combustion chamber 120. Meanwhile, in the embodiment, the first proportional valve 411 is arranged on the first gas pipe 410 connected with the fire grate assembly 200, and the second proportional valve 412 is arranged on the second gas pipe 420 connected with the gas injection assembly 300, so that the gas quantities in the first combustion chamber 110 and the second combustion chamber 120 can be distributed according to different heat load requirements of the gas water heater, and therefore, a high-temperature air combustion reaction can be generated in the second combustion chamber 120, sufficient combustion is achieved, and the emission of pollutants such as NOx and CO is reduced.
In an embodiment of the present invention, referring to fig. 1 to 3, an installation chamber 130 for installing the fire grate assembly 200 is further formed in the casing 100, the installation chamber 130 is communicated with the first combustion chamber 110, and the installation chamber 130 is provided with an air inlet 131.
It can be understood that the installation chamber 130 is equivalent to an air chamber, and air is introduced from the air inlet 131, so that the fire grate assembly 200 located in the installation chamber 130 can inject the air in the installation chamber 130 into the fire grate assembly 200 to mix with the gas after the gas is introduced into the first gas pipe 410, and then the air is ejected from the fire nozzle of the fire grate assembly 200 towards the first combustion chamber 110, so as to achieve the purpose of preheating and combusting the first combustion chamber 110. Meanwhile, the installation chamber 130 is communicated with the first combustion chamber 110 to realize a secondary air supplement function when the fire grate assembly 200 is combusted at the fire hole. Further, air for combustion of the high temperature air in the second combustion chamber 120 may also be provided by the air in the installation chamber 130.
In the practical application process, the burner further comprises a fan 500, wherein the air outlet side of the fan 500 is communicated with the air inlet 131 to realize the function of conveying air to the installation chamber 130.
In one embodiment, the fire grate assembly 200 comprises a fire grate gas distributing rod 220 communicated with the first gas pipe 410 and a plurality of fire grate units 210, wherein the fire grate gas distributing rod 220 is connected with the plurality of fire grate units 210; the fire row unit 210 is used for ejecting air in the installation chamber 130 and mixing with fuel gas in the fire row unit 210 to spray fire towards the first combustion chamber 110.
It can be understood that each fire row unit 210 all can inject air and gas mixture in the installation chamber 130 to can be towards first combustion chamber 110 flame projecting, and fire row subassembly 200 includes a plurality of fire row units 210, has increased the area that fire row subassembly 200 spouted fire to first combustion chamber 110 and has guaranteed the homogeneity of flame projecting, has accelerated the preheating effect to first combustion chamber 110.
In this embodiment, the fire grate assembly 200 further includes a fire grate gas distribution rod 220 connected to the first gas pipe 410, and the fire grate gas distribution rod 200 is connected to each of the plurality of fire grate units 210, so as to achieve a function of distributing the gas in the first gas pipe 410 to each of the fire grate units 210.
In an embodiment, a plurality of the fire grate units 210 are distributed side by side, an air gap 201 is formed between two adjacent fire grate units 210, and the air gap 201 is communicated with the first combustion chamber 110.
The fan 500 inputs air into the installation chamber 130 through the air inlet 131, the air is injected into the pipelines of the fire grate units 210 through the plurality of fire grate units 210, is mixed with the fuel gas introduced from the first fuel gas pipe 410, and is sprayed out from the fire nozzles of the fire grate units 210, and at the moment, the air entering the fire grate units 210 from the installation chamber 130 is equivalent to primary air participating in preheating combustion; when the flame is sprayed out from the fire nozzle of the fire row single body 210 for combustion, because the installation chamber 130 is communicated with the first combustion chamber 110, the air inside the installation chamber 130 can be supplemented with secondary air when the flame is combusted at the fire nozzle of the fire row single body 210, so as to ensure the sufficiency of preheating combustion. Further, the air in the installation chamber 130 can enter the first combustion chamber 110 along the air gap 201 and enter the second combustion chamber 120 through the first combustion chamber 110 to participate in the high temperature air combustion reaction in the second combustion chamber 120.
In an embodiment of the present invention, referring to fig. 1 to 3, the gas injection assembly 300 includes a gas distribution rod 320 and a plurality of gas nozzles 310 communicated with the second gas pipe 420, and a plurality of gas nozzles 310 have one end communicated with the gas distribution rod 320 and the other end penetrating through the sidewall of the casing 100 to inject gas into the second combustion chamber 120.
In this embodiment, the gas injection assembly 300 includes a gas distribution rod 320 and a plurality of gas nozzles 310, and the gas distribution rod 320 is used to communicate the second gas pipe 420 and the plurality of gas nozzles 310, so that the gas in the second gas pipe 420 can be distributed to the plurality of gas nozzles 310, thereby performing a function that the plurality of gas nozzles 310 can inject the gas toward the second combustion chamber 120. Optionally, in terms of implementation of the structure, the gas nozzle 310 is disposed through the side wall of the casing 100, so that the gas is injected by the gas nozzle 310 after entering the inside of the second combustion chamber 120, thereby ensuring the sealing performance of the second combustion chamber 120 and preventing the inside gas from leaking. It can be understood that the gas distributing rod 320 can also adjust the gas flow rate of the plurality of gas nozzles 310 while distributing the gas.
In practical applications, the arrangement of the plurality of gas nozzles 310 may be determined according to practical situations, for example, the gas nozzles may be arranged in rows, or may be arranged in rings or irregularly shaped. Optionally, a plurality of gas nozzles 310 may be spaced apart when arranged to increase the gas injection range of the gas injection assembly 300.
In order to prevent the injected fuel gas and the high temperature flue gas generated by air combustion from affecting the opposite side walls of the casing 100, in an embodiment, the burner includes at least two fuel gas injection assemblies 300, and at least two fuel gas injection assemblies 300 are respectively disposed on the opposite sides of the second combustion chamber 120.
Optionally, a plurality of gas nozzles 310 located on the same side of the second combustion chamber 120 are spaced apart; the gas nozzles 310 on the two opposite sides of the second combustion chamber 120 are arranged oppositely or alternately, so that the gas is ejected oppositely through the two opposite sides of the second combustion chamber 120, the purpose of quickly sucking high-temperature flue gas is achieved, and the efficiency of high-temperature air combustion is accelerated.
In an embodiment of the present invention, referring to fig. 1 to 3, the burner further includes a gas supply pipe 430 externally connected to a gas source, and the first gas pipe 410 and the second gas pipe 420 are both connected to the gas supply pipe 430.
It can be understood that the first gas pipe 410 and the second gas pipe 420 are two branches connected to the gas supply pipe 430, and the gas flow distribution in the first gas pipe 410 and the second gas pipe 420 is adjusted by the first proportional valve 411 and the second proportional valve 412, respectively. In practical application, the first proportional valve 411 and the second proportional valve 412 may be valves capable of controlling the gas pipeline passage to be completely closed, or may be valves capable of only adjusting the flow rate but not completely closing the gas pipeline passage, at this time, the first switching valve 412 may be disposed on the first gas pipe 410, and/or the second switching valve 422 may be disposed on the second gas pipe 420, so as to implement the function of independently closing and opening the gas passages in the first gas pipe 410 and the second gas pipe 420, and at this time, the requirement of the national standard that two valves which are independently opened and closed are disposed on the gas pipeline can be met.
The utility model discloses still provide a gas heater, refer to fig. 1, this gas heater includes heat exchanger 600 and combustor, and the concrete structure of this combustor refers to above-mentioned embodiment, because this gas heater has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. Wherein the heat exchanger 600 is connected to the second combustion chamber 120 of the burner to produce hot water by the heat generated from the second combustion chamber 120.
It can be understood that the heat exchanger 600 has a water inlet and a water outlet, the water inlet of the heat exchanger 600 is connected with a tap water pipe and is connected with cold water for heat exchange, the water outlet is used for connecting a faucet and a shower head of a user home through a pipeline, and a cold water joint and a hot joint are generally arranged for convenient connection; in this embodiment, the heat exchanger 600 may be a heat exchange pipe disposed on a side wall of the casing 100 corresponding to the second combustion chamber 120 to exchange heat with the second combustion chamber 120 so as to convert the input cold water into hot water. In other embodiments, the water-cooled wall may be used, and is not limited herein.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (11)
1. A burner, comprising:
the combustion chamber comprises a shell, wherein a first combustion chamber and a second combustion chamber which are communicated in sequence are formed in the shell;
the fire grate assembly is arranged in the shell and used for generating preheating combustion in the first combustion chamber and heating the flue gas in the first combustion chamber to a target temperature;
the fuel gas injection assembly is connected with the second combustion chamber and used for injecting fuel gas into the second combustion chamber so as to enable high-temperature air combustion reaction to be carried out in the second combustion chamber;
the first gas pipe is connected with the fire grate assembly, and a first proportional valve is arranged on the first gas pipe; and
and the second gas pipe is connected with the gas injection assembly, and a second proportional valve is arranged on the second gas pipe.
2. The burner of claim 1, wherein a mounting chamber for positioning the fire grate assembly is further formed in the housing, the mounting chamber being in communication with the first combustion chamber, the mounting chamber being provided with an air inlet.
3. The burner of claim 2, wherein the fire grate assembly comprises a fire grate gas distribution rod and a plurality of fire grate units, wherein the fire grate gas distribution rod is communicated with the first gas pipe, and the fire grate gas distribution rod is connected with the plurality of fire grate units; the fire row single body is used for ejecting air in the installation chamber and is mixed with fuel gas in the fire row single body to jet fire towards the first combustion chamber.
4. The burner of claim 3, wherein a plurality of said fire grate units are arranged side by side, and an air gap is formed between two adjacent fire grate units, and said air gap is communicated with said first combustion chamber.
5. The burner as claimed in any one of claims 1 to 4, wherein the gas injection assembly comprises a gas distribution rod communicated with the second gas pipe and a plurality of gas nozzles, one end of each of the plurality of gas nozzles is communicated with the gas distribution rod, and the other end of each of the plurality of gas nozzles penetrates through a side wall of the housing to inject gas into the second combustion chamber.
6. The burner of claim 5, wherein said burner includes at least two of said gas injection assemblies, said at least two gas injection assemblies being disposed on opposite sides of said second combustion chamber.
7. The burner of claim 6, wherein the plurality of gas nozzles located on the same side of the second combustion chamber are spaced apart; the plurality of gas nozzles positioned on the two opposite sides of the second combustion chamber are arranged oppositely or in a staggered way.
8. The burner of any one of claims 1 to 4, further comprising a gas supply tube externally connected to a gas source, wherein the first gas tube and the second gas tube are each connected to the gas supply tube.
9. The burner of claim 8, wherein the first gas line is provided with a first on-off valve; and/or a second switch valve is arranged on the second gas pipe.
10. A burner as claimed in any one of claims 2 to 4, further comprising a fan, the air outlet side of the fan communicating with the air inlet.
11. A gas water heater comprising a heat exchanger and a burner as claimed in any one of claims 1 to 10, said heat exchanger being connected to a second combustion chamber of said burner to produce hot water from heat generated by said second combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120393531.7U CN215175014U (en) | 2021-02-20 | 2021-02-20 | Combustor and gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120393531.7U CN215175014U (en) | 2021-02-20 | 2021-02-20 | Combustor and gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215175014U true CN215175014U (en) | 2021-12-14 |
Family
ID=79411827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120393531.7U Active CN215175014U (en) | 2021-02-20 | 2021-02-20 | Combustor and gas heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215175014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336469A (en) * | 2023-05-24 | 2023-06-27 | 杭州老板电器股份有限公司 | Flow path system, combustion heat exchange assembly and gas water heater |
-
2021
- 2021-02-20 CN CN202120393531.7U patent/CN215175014U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116336469A (en) * | 2023-05-24 | 2023-06-27 | 杭州老板电器股份有限公司 | Flow path system, combustion heat exchange assembly and gas water heater |
| CN116336469B (en) * | 2023-05-24 | 2023-08-18 | 杭州老板电器股份有限公司 | Flow path system, combustion heat exchange assembly and gas water heater |
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