CN210801168U - Barrel-shaped full-premixing sectional burner and wall-mounted furnace - Google Patents
Barrel-shaped full-premixing sectional burner and wall-mounted furnace Download PDFInfo
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- CN210801168U CN210801168U CN201921005432.6U CN201921005432U CN210801168U CN 210801168 U CN210801168 U CN 210801168U CN 201921005432 U CN201921005432 U CN 201921005432U CN 210801168 U CN210801168 U CN 210801168U
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Abstract
The utility model discloses a full premix segmentation combustor of tube-shape, including combustor shell and combustor end cover, the head structure of a combustor is assembled into to combustor shell and combustor end cover, the periphery equipartition of combustor shell has the flame hole of its inner chamber of a plurality of intercommunications, the inside of head structure is equipped with two at least distribution net cores in proper order, the periphery equipartition of distribution net core has the venthole of its inner chamber of a plurality of intercommunications, the inner chamber and the gas mixture main channel intercommunication of first distribution net core, the inner chamber of all the other each distribution net cores communicates with the inner chamber of first distribution net core through respective gas mixture passageway respectively, each gas mixture passageway is equipped with the valve respectively with the one end port of the inner chamber intercommunication of first distribution net core. The utility model also discloses a hanging stove of using above-mentioned combustor. Adopt the utility model discloses, can realize the staged combustion effect in the within range of guaranteeing full premix combustion stability, obtain littleer heat load output and bigger load regulation ratio, reach more comfortable effect.
Description
Technical Field
The utility model belongs to the technical field of the hanging stove, more specifically the utility model relates to a tube-shape full premix segmentation combustor and hanging stove.
Background
The existing cylindrical combustor is generally applied to full premix combustion, so that gas and air are completely mixed before combustion, the combustion is complete, the combustion temperature is high, but when the combustor is combusted under a small load, the combustion stability is poor, tempering is easy to occur, and the load regulation is small. In order to increase the turndown ratio, the prior art generally makes an optimized design for the burner surface structure, but it is also difficult to achieve a larger turndown ratio.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a high, the stable tube-shape full premix staged combustion ware of burning of load regulation ratio and hanging stove are provided.
In order to solve the above technical problems, one aspect of the present invention provides a burner, comprising a burner housing and a burner end cap, the burner shell and the burner end cover are assembled into a head structure of the burner, a plurality of flame holes communicated with the inner cavity of the burner shell are uniformly distributed on the periphery of the burner shell, the head structure is internally and sequentially provided with at least two distribution net cores, the periphery of each distribution net core is uniformly provided with a plurality of air outlet holes communicated with the inner cavity of the distribution net core, the inner cavity of the first distribution net core is communicated with the mixed gas main channel, the inner cavities of the other distribution net cores are respectively communicated with the inner cavity of the first distribution net core through respective mixed gas channels, valves are respectively arranged at one end ports of the mixed gas channels communicated with the inner cavity of the first distribution net core, and when all the valves are in an open state, the combustor is in a full-section combustion state; the burner is in a staged combustion state when the at least one valve is in the closed state.
As the utility model discloses preferred scheme, the valve is relay switch valve.
As the utility model discloses preferred scheme, each gas mixture passageway is the interior outer tube and arranges.
As the preferred proposal of the utility model, each gas mixture channel is arranged in parallel pipes.
As the preferred scheme of the utility model, the axis of each gas mixture passageway is coaxial with the axis of head structure.
As the preferred scheme of the utility model, the cross-section of distribution net core with the cross-section of combustor shell is circular respectively, the outer peripheral face of distribution net core with the inner peripheral surface of combustor shell separates from and forms the annular chamber.
As the preferred scheme of the utility model, the effective total area of giving vent to anger of all ventholes is greater than the effective total area of giving vent to anger of all flame holes.
As the preferred scheme of the utility model, it is single the area of venthole is greater than singly the area of flame hole.
As the utility model discloses preferred scheme, the full premix segmentation combustor of tube-shape still includes fan and blender, the blender is equipped with air intlet, gas import and gas mixture export, air intlet pass through the pipeline with the fan is connected, gas import pass through the pipeline with the gas source is connected, the gas mixture export is connected through the first distribution net core of gas mixture main passage and combustor.
Another aspect of the present invention provides a wall-hanging stove, comprising the above items of the cylindrical full-premix staged burner
Implement the utility model discloses a tube-shape full premix segmentation combustor and hanging stove compares with prior art, has following beneficial effect:
the utility model discloses an at two at least distribution net cores of internal assembly at head structure to combine the valve to the break-make of each gas mixture passageway, the distribution net core intercommunication gas mixture total passageway of control corresponding quantity and get into combustion work, thereby in the within range of guaranteeing full premix combustion stability, realize the segmentation combustion effect, obtain littleer heat load output, obtain bigger load regulation ratio, reach more comfortable effect.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
Fig. 1 is a schematic structural diagram of a burner provided by the present invention;
FIG. 2 is a schematic view of a burner provided by the present invention with valves, fans and mixers;
the labels in the figure are:
the combustor comprises a combustor shell 1, a flame hole 11, a combustor end cover 2, a distribution net core 3, an air outlet 30, a first distribution net core 31, a second distribution net core 32, a third distribution net core 33, a mixed gas main channel 4, a mixed gas channel 5, a first mixed gas channel 51, a second mixed gas channel 52, a valve 6, a first valve 61, a second valve 62, a fan 7 and a mixer 8.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
In addition, it should be noted that, in the description of the present invention, the terms "front" and "rear" refer to: the utility model discloses a product is when user state, and the one side of being close to the user is "preceding", and the one side of keeping away from the user then is "back".
As shown in fig. 1 and fig. 2, the preferred embodiment of the present invention is a tubular full premix segment burner, which comprises a burner housing 1 and a burner end cap 2, wherein the burner housing 1 and the burner end cap 2 are assembled into a head structure of a burner, a plurality of flame holes 11 communicating with the inner cavity of the burner housing 1 are uniformly distributed on the periphery of the burner housing 1, at least two distribution net cores 3 are sequentially assembled inside the head structure, a plurality of air outlets 30 communicating with the inner cavity of the distribution net cores 3 are uniformly distributed on the periphery of the distribution net cores 3, the inner cavity of the first distribution net core 31 is communicated with a mixed gas main channel 4, the inner cavities of the other distribution net cores 3 are respectively communicated with the inner cavity of the first distribution net core 31 through respective mixed gas channels 5, one end port of each mixed gas channel 5 communicating with the inner cavity of the first distribution net core 31 is respectively provided with a valve 6, when all the valves 6 are in an open state, the combustor is in a full-section combustion state; when the at least one valve 6 is in the closed state, the burner is in the staged combustion state.
For convenience of illustration, as shown in fig. 1, the distribution network core 3 is provided with N distribution network cores, which are a first distribution network core 31, a second distribution network core 32, a third distribution network core 33, … …, and an nth distribution network core; the gas mixture channel 5 of the first distribution network core 31 and the second distribution network core 32 is a first gas mixture channel 51, the gas mixture channel 5 of the first distribution network core 31 and the third distribution network core 33 is a second gas mixture channel 52, and so on, the gas mixture channel of the first distribution network core 31 and the nth distribution network core is an N-1 th gas mixture channel; similarly, the valve 6 at the port of the first mixture passage 51 is the first valve 61, the valve 6 at the port of the second mixture passage 52 is the second valve 62, and so on, the valve at the port of the N-1 th mixture passage is the N-1 th valve; wherein N is greater than or equal to 2.
For example, the arrangement of each mixture passage 5 may be an inner-outer pipe arrangement or a parallel pipe arrangement. In this embodiment, in order to optimize the structure of the burner and ensure that the mixture is uniformly released around the housing, the arrangement mode of each mixture channel 5 is preferably an inner-outer tube arrangement, specifically, the second mixture channel 52 is arranged in the first mixture channel 51, the third mixture channel 5 is arranged in the second mixture channel 52, and so on, the N-1 mixture channel is arranged in the N-2 mixture channel, and N is greater than or equal to 3; that is, the diameter of each mixture passage 5 decreases from the first mixture passage 51 in order, and the length increases from the first mixture passage 51 in order. Preferably, the axis of each mixture passage 5 is coaxial with the axis of the head structure, and the effective air intake area of each mixture passage 5 is the same, so as to ensure the same flow rate of the mixture into each distribution net core 3.
Of course, in other embodiments, each distribution network element 3 can also be directly connected to the mixture manifold 4 via a respective mixture channel 5, for example: each mixture channel 5 is arranged in a parallel tube.
Illustratively, the valve 6 is a relay switch valve. When the coil of the relay switch valve is electrified, the valve core of the relay switch valve is adsorbed, the valve port is opened, and the corresponding mixed gas channel 5 is in an open state; when the coil of the relay switch valve is powered off, the valve core of the relay switch valve resets under the elastic force of the spring, the valve port is closed, and the corresponding mixed gas channel 5 is in a closed state.
Illustratively, the cross section of the distribution net core 3 and the cross section of the burner housing 1 are respectively circular, and the outer peripheral surface of the distribution net core 3 is separated from the inner peripheral surface of the burner housing 1 to form an annular chamber, so as to ensure that the mixed gas is uniformly mixed in the annular chamber.
Illustratively, the total effective gas exit area of all the gas exit holes 30 is greater than the total effective gas exit area of all the flame holes 11. Under rated effective load, the aperture of the flame holes 11 is smaller, so that the gas is more effectively discharged uniformly and stably combusted, the mixed gas is further promoted to be fully combusted, the emission of harmful gas is reduced, and the use safety is improved.
Illustratively, the area of a single air outlet 30 is larger than the area of a single flame hole 11. Due to the design, the air outlet holes 30 and the flame holes 11 can be matched in a staggered mode, so that mixed gas is scattered, and the mixed gas is guaranteed to be uniformly sprayed out.
In addition, the full premix segment combustor of tube-shape of this embodiment still includes fan 7 and blender 8, blender 8 is equipped with air intlet, gas inlet and gas mixture export, air intlet pass through the pipeline with fan 7 is connected, the gas import pass through the pipeline with the gas source is connected, the gas mixture export is connected with the first distribution net core 31 of combustor through gas mixture main entrance 4.
In the following, taking 3 distribution net cores 3 as an example, that is, the cylindrical full premix segment combustor includes a combustor casing 1, a combustor end cover 2, a first distribution net core 31, a second distribution net core 32, a third distribution net core 33, a first mixture passage 51, a second mixture passage 52, a first valve 61, and a second valve 62. The first mixture passage 51 is disposed in the first distribution network core 31, the second mixture passage 52 penetrates the second distribution network core 32 and extends into the first mixture passage 51, and the axis of the first mixture passage 51 and the axis of the second mixture passage 52 are coaxial with the axis of the head structure. The working principle is as follows:
air enters the mixer 8 through the fan 7 under the driving of the fan 7, gas enters from a gas inlet of the mixer 8 and is premixed with the air in the mixer 8 to form uniform mixed gas (completely premixed), the mixed gas enters the first distribution network core 31 in the combustor through the mixed gas main channel 4, then enters the first mixed gas channel 51 and the second distribution network core 32 through the first valve 61 in sequence, enters the second mixed gas channel 52 and the third distribution network core 33 through the second valve 62 in sequence, and then flows out uniformly through the combustor shell 1 to be ignited and combusted.
During the whole-section combustion, all the valves 6 are electrified and are in an open state, the first mixed gas channel 51 and the second mixed gas channel 52 in the combustor are in a conducting state, and all the distribution net cores 3 are put into operation.
When the minimum load of the whole-section combustion of the combustor cannot meet the requirement of smaller load output, the second valve 62 is powered off, the inlet of the second mixture passage 52 is closed under the elastic force of the spring of the relay switch valve, the corresponding heat load of the combustor head surface corresponding to the third distribution network core 33 is closed, and the corresponding heat load of the combustor head surfaces corresponding to the remaining first distribution network core 31 and the remaining second distribution network core 32 is opened. By analogy, a smaller thermal load is needed, the first valve 61 is continuously powered off, the inlet of the first gas mixture channel 51 is closed under the action of the elastic force of the spring of the relay switch valve, the corresponding thermal load on the surface of the burner head corresponding to the second distribution network core 32 is closed again, and only the corresponding thermal load on the surface of the burner head corresponding to the first distribution network core 31 is opened, so that the staged combustion effect is realized.
When the heat load needs to be increased again, the first valve 61 is powered on first and is opened, the mixture enters the second distribution net core 32, and the corresponding heat load on the surface of the burner head corresponding to the second distribution net core 32 is increased; when the load is increased, the second valve 62 is electrified and opened, the mixed gas enters the third distribution net core 33, the corresponding heat load of the surface of the burner head corresponding to the third distribution net core 33 is increased, and the burner reenters the whole-section combustion.
It can be seen that, the utility model discloses a section burner is mixed in advance entirely in tube-shape is through two at least distribution net cores of internal assembly at the head structure to combine the valve to each gas mixture passageway's break-make, the distribution net core intercommunication gas mixture total passageway and the entering combustion work of control corresponding quantity, thereby in the within range of guaranteeing the combustion stability is mixed in advance entirely, realize the section combustion effect, obtain littleer heat load output, obtain bigger load regulation ratio, reach more comfortable effect.
In addition, based on above-mentioned tube-shape full premix sectional burner, the utility model also provides a hanging stove of using above-mentioned tube-shape full premix sectional burner. Since the wall-hanging stove comprises the cylindrical fully-premixed sectional burner, all the advantages of the cylindrical fully-premixed sectional burner are achieved, and the description is omitted.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (10)
1. A cylindrical full-premixing sectional burner comprises a burner shell and a burner end cover, wherein the burner shell and the burner end cover are assembled into a head structure of the burner, a plurality of flame holes communicated with an inner cavity of the burner shell are uniformly distributed on the periphery of the burner shell, and the cylindrical full-premixing sectional burner is characterized in that at least two distribution net cores are sequentially assembled inside the head structure, a plurality of air outlet holes communicated with the inner cavity of the distribution net cores are uniformly distributed on the periphery of the distribution net cores, the inner cavity of a first distribution net core is communicated with a mixed gas main channel, the inner cavities of the other distribution net cores are respectively communicated with the inner cavity of the first distribution net core through respective mixed gas channels, one end port of each mixed gas channel communicated with the inner cavity of the first distribution net core is respectively provided with a valve, and when all the valves are in an open state, the burner is in a full-section combustion state; the burner is in a staged combustion state when the at least one valve is in the closed state.
2. The can-barrel fully-premixed staged combustor of claim 1, wherein the valve is a relay switch valve.
3. The can-barrel fully-premixed staged combustor as claimed in claim 1, wherein each mixture passage is arranged in an inner and outer tube.
4. The can-barrel fully premixed stage burner according to claim 1, wherein each mixture channel is arranged in a parallel tube.
5. The can-barrel fully-premixed stage burner of claim 3, wherein an axis of each mixture passage is coaxial with an axis of the head structure.
6. The can-type fully premixed stage burner of claim 1, wherein the cross-section of the distribution mesh core and the cross-section of the burner housing are circular, and the outer circumferential surface of the distribution mesh core is separated from the inner circumferential surface of the burner housing to form an annular chamber.
7. The can-barrel fully-premixed stage burner of claim 6, wherein the total exit effective area of all exit holes is greater than the total exit effective area of all flame holes.
8. The can-barrel fully premixed stage burner of claim 6, wherein the area of a single said gas exit hole is greater than the area of a single said flame hole.
9. The cylindrical full-premix segmented burner as recited in claim 1, further comprising a blower and a mixer, wherein the mixer is provided with an air inlet, a gas inlet and a mixture outlet, the air inlet is connected with the blower through a pipeline, the gas inlet is connected with a gas source through a pipeline, and the mixture outlet is connected with a first distribution network core of the burner through a mixture main channel.
10. A wall hanging stove comprising a can-type fully premixed stage burner as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921005432.6U CN210801168U (en) | 2019-06-28 | 2019-06-28 | Barrel-shaped full-premixing sectional burner and wall-mounted furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921005432.6U CN210801168U (en) | 2019-06-28 | 2019-06-28 | Barrel-shaped full-premixing sectional burner and wall-mounted furnace |
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| CN210801168U true CN210801168U (en) | 2020-06-19 |
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| CN201921005432.6U Active CN210801168U (en) | 2019-06-28 | 2019-06-28 | Barrel-shaped full-premixing sectional burner and wall-mounted furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242957A (en) * | 2019-06-28 | 2019-09-17 | 广东万和热能科技有限公司 | A kind of tubular premixes staged burners and wall-hung boiler entirely |
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- 2019-06-28 CN CN201921005432.6U patent/CN210801168U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242957A (en) * | 2019-06-28 | 2019-09-17 | 广东万和热能科技有限公司 | A kind of tubular premixes staged burners and wall-hung boiler entirely |
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