CN218510880U - Combustor monomer and combustor - Google Patents

Abstract

The utility model relates to a combustor monomer and combustor, wherein, the combustor monomer is including drawing the body and fire hole bounding wall, draw the body to be equipped with and draw mouthful and gas outlet, fire hole bounding wall cover is established in gas outlet department, draw the body to be equipped with the drawing passageway that draws mouthful and gas outlet, draw the passageway including the portion of drawing that sets gradually and be linked together, transition portion and constriction, constriction includes that first region and two at least second are regional, first region and second are regional along keeping away from drawing mouthful one end orientation and being close to drawing the direction of mouthful one end and arranging in proper order, first region orientation draws to penetrate passageway center protrusion and is equipped with first convex closure, the regional orientation of second deviates from to draw penetrates passageway center protrusion and is equipped with the convex closure of second. The utility model discloses a combustor monomer can change the runner area in first region and second region through first convex closure and second convex closure to make the holistic speed of giving vent to anger of fire hole bounding wall relatively even, thereby guarantee the whole highly uniform of flame, improve flame combustion stability.

Description

Combustor monomer and combustor

Technical Field

The utility model relates to hot water equipment technical field especially relates to a combustor monomer and combustor.

Background

The gas water heater becomes an indispensable product in the home of consumers, the burner is an important part of the gas water heater, and the performance stability of the burner plays an important role in the performance of the whole gas water heater.

The combustor of gas heater comprises a plurality of fire rows that set up side by side, and the air passes through the injection port that the fire was arranged and gets into the mixing chamber that the fire was arranged and mix with the gas and form mixed gas, and mixed gas flows to the top burning of fire row again. Current fire is arranged and is adopted Z type structure usually, can cause the mixed gas velocity of flow inhomogeneous of fire row top venthole, and the velocity of flow that is close to the venthole of drawing mouthful one side is lower relatively, and flame height is also lower relatively, and the venthole velocity of flow of keeping away from drawing mouthful one side is higher relatively, causes the high nonconformity of flame that the fire was arranged, and flame takes place the shake easily, and the burning is unstable, and the slope can appear in flame moreover and the burning is to the combustion chamber lateral wall, influences gas heater's life.

SUMMERY OF THE UTILITY MODEL

One of the technical problems solved by the utility model is to provide a burner unit, which can effectively improve the uniformity of the air outlet speed of the fire hole and ensure the overall height uniformity of flame.

The second technical problem solved by the present invention is to provide a burner, the speed of air outlet of the fire hole is uniform, and the flame burning is more stable.

The first technical problem is solved by the following technical scheme:

the utility model provides a combustor monomer, is including drawing the injection body and fire hole bounding wall, draw the injection body to be provided with and draw mouth and gas outlet, fire hole bounding wall cover is established gas outlet department, draw the injection body to be provided with the intercommunication draw the mouth with the passageway is drawn to drawing of gas outlet, draw the passageway including draw portion, transition portion and the constriction portion that sets gradually and be linked together, the constriction portion includes that first region and two at least second are regional, first region with the second is regional along keeping away from in draw mouthful one end orientation to be close draw the orientation of mouthful one end to separate the setting in proper order, first region orientation draw the central protrusion of passageway to be provided with first protruding package, the regional orientation of second deviates from draw the central protrusion of passageway to be provided with the protruding package of second.

Compared with the prior art, the combustor monomer has the beneficial effects that: first region orientation draws penetrates passageway central depression and is provided with first convex closure, first convex closure can reduce the flow area in first region, and play the effect of blockking to mixing the gas, with the velocity of flow that reduces the mixed gas in first region, the second region deviates from and draws the central protrusion of passageway and be provided with the second convex closure, the second convex closure can increase the flow area in second region, with the velocity of flow that improves all regional mixed gases in second, thereby make the gas velocity of flow that flows first region and second region tend to be close, guarantee that the velocity of gas outlet 12 is more unanimous in each department, thereby improve the highly uniform nature of flame burning, be favorable to reducing the flame shake, reduce the combustion noise, improve the free combustion stability of combustor, and flame is difficult for taking place the swing or the slope, can effectively avoid the lateral wall of flame burning combustion chamber.

In one embodiment, the flow passage areas of all the second areas are sequentially reduced along the direction from one end far away from the injection port to one end close to the injection port.

In one embodiment, the injection body comprises two injection pieces, the two injection pieces form the injection passage in a combined mode, each injection piece is provided with the first convex hull and the second convex hull, the first convex hulls on the two injection pieces are arranged oppositely and at intervals, and the second convex hulls on the two injection pieces are arranged oppositely and at intervals.

In one embodiment, each ejector sheet is provided with a plurality of second convex hulls, and the number of the second convex hulls in the front second area is more than that of the second convex hulls in the rear second area along the direction from one end far away from the ejector port to one end close to the ejector port.

In one embodiment, the length direction of the first convex hull and the flow direction of the gas flowing out of the gas outlet form an included angle, and the length direction of the second convex hull and the flow direction of the gas flowing out of the gas outlet are the same.

In one embodiment, the included angle between the length direction of the first convex hull and the flowing direction of the fuel gas flowing out of the gas outlet is a, and the included angle is more than 0 degrees and less than 90 degrees.

In one embodiment, the first convex hull is inclined upward toward the injection port.

In one embodiment, a plurality of fire hole groups are arranged at the top of the fire hole enclosing plate at intervals along the length direction, a plurality of air guide convex hulls are arranged on two sides of the injection body along the width direction in a protruding mode, the air guide convex hulls are located above the first convex hulls and the second convex hulls, the air guide convex hulls and the fire hole groups are arranged in a one-to-one correspondence mode, a plurality of flame stabilizing cavities with open tops are formed between the fire hole enclosing plate and the air guide convex hulls, and a plurality of communicating portions are arranged on the fire hole enclosing plate and communicated with the flame stabilizing cavities and the air distribution holes of the injection channels.

In one embodiment, the air guide convex hull extends upwards to form a guide plate.

The second technical problem is solved by the following technical solutions:

a combustor comprises a shell and a plurality of combustor monomers, wherein the combustor monomers are arranged in the shell in parallel.

Compared with the prior art, the combustor has the beneficial effects that: the gas outlet speed of the fire holes of the burner is uniform, the height consistency of burning flame is good, the flame is not easy to shake, and the burning is more stable.

Drawings

Fig. 1 is a perspective view of a burner unit according to an embodiment of the present invention;

fig. 2 is a front view of a burner unit according to an embodiment of the present invention;

fig. 3 is a top view of an injection piece of a single burner in accordance with an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a single burner unit according to an embodiment of the present invention;

fig. 5 is a perspective view of a fire hole surrounding plate of a burner unit according to an embodiment of the present invention.

In the figure:

1. an ejector body; 11. an injection port; 12. an air outlet; 13. an injection passage; 131. an injection part; 1311. an injection section; 1312. a baffling mixing section; 132. a transition section; 133. a constriction; 1331. a first region; 1332. a second region; 1333. a first convex hull; 1334. a second convex hull; 14. ejecting sheets; 15. an air guide convex hull; 2. fire hole coaming plates; 21. a fire hole group; 211. a main fire hole; 212. auxiliary fire holes; 22. air distributing holes; 3. a flame stabilizing cavity; 4. a baffle.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "vertical", "top", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are 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 one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "communicate" and "connect" are to be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1 to 5, the embodiment of the utility model provides a combustor monomer, including injection body 1 and fire hole bounding wall 2, injection body 1 is provided with and draws mouthful 11 and gas outlet 12, fire hole bounding wall 2 covers establishes in gas outlet 12 department, injection body 1 is provided with the injection passageway 13 that feeds through injection mouth 11 and gas outlet 12, it has set gradually the portion 131 that draws that is linked together to draw the passageway 13, transition portion 132 and constriction 133, draw portion 131 including the section 1311 that draws that is linked together and baffling mixing section 1312, the export that draws mouth 11 and baffling mixing section 1312 is located injection body 1 length direction's both ends respectively, gas and air can flow to draw section 1311 and baffling mixing section 1312 from injection mouth 11 in proper order, and mix and form the gas mixture, then flow to transition portion 132 and constriction 133, flow to the last from gas outlet 12 flows to fire hole 2 and burn, and the runner area of constriction 133 is less than the runner area of transition portion 132, can produce certain resistance, can make air and gas further fully mix.

The constricted part 133 includes a first region 1331 and at least two second regions 1332 in sequence from the end far away from the injection port 11 to the direction close to the end close to the injection port 11, that is, the first region 1331 is located right above the outlet of the baffling mixing section 1312, and the second region 1332 is far away from the outlet of the baffling mixing section 1312, so that the flow rate of the mixed gas flowing through the first region 1331 is faster than that flowing through the second region 1332. The first region 1331 is provided with a first convex hull 1333 protruding towards the center of the injection passage 13, the first convex hull 1333 can reduce the flow area of the first region 1331, and the mixed gas plays a role of blocking, so as to reduce the flow rate of the mixed gas of the first region 1331, the second region 1332 is provided with a second convex hull 1334 protruding away from the center of the injection passage 13, the second convex hull 1334 can increase the flow area of the second region 1332, so as to improve the flow rate of the mixed gas of the second region 1332, so as to make the flow rate of the mixed gas flowing out of the first region 1331 and the second region 1332 close, so as to make the outlet speed of each region of the gas outlet 12 more consistent, thereby improving the height consistency of flame combustion, being beneficial to reducing flame shake, reducing combustion noise, improving the combustion stability of a combustor monomer, and preventing the flame from swinging or tilting, and effectively avoiding the flame from burning the side wall of the combustion chamber.

Note that the arrow without reference numeral in fig. 2 and 4 indicates the flow direction of the mixed gas.

Specifically, a plurality of first convex hulls 1333 are arranged at intervals in the first region 1331, and a plurality of second convex hulls 1334 are arranged at intervals in the second region 1332.

Illustratively, the constriction 133 has two second regions 1332. In other embodiments, the length of the burner unit is long enough, and the number of the second region 1332 is not limited to two.

Specifically, the injection body 1 includes two injection pieces 14, the two injection pieces 14 are combined to form the injection passage 13 after being stamped, each injection piece 14 is provided with a first convex hull 1333 and a second convex hull 1334, the first convex hulls 1333 on the two injection pieces 14 are arranged oppositely and at intervals to form a first fuel flow passage, and the second convex hulls 1334 on the two injection pieces 14 are arranged oppositely and at intervals to form a second fuel flow passage. This design not only can change the runner area of first region 1331 and second region 1332 respectively through first convex closure 1333 and second convex closure 1334, guarantees that the gas mixture can evenly flow out from gas outlet 12, simultaneously because the runner area of first gas runner is littleer, and gas and air can more fully mix through the in-process of first gas runner.

In an example, the first convex hull 1333 is formed by stamping the outer side wall of the injection sheet 14 towards the inner side wall, and a first groove is formed on the outer side wall of the injection sheet 14 to reduce the flow passage area of the first region 1331; the second convex bulge 1334 is formed by punching the outer side wall of the inner side wall of the injection sheet 14, and a second groove is formed on the inner side wall of the injection sheet 14 to increase the flow passage area of the second area 1332.

Specifically, the gas flows out of the gas outlet 12 vertically upward, the length direction of the first convex hull 1333 and the gas flowing direction out of the gas outlet 12 form an included angle, and the length direction of the second convex hull 1334 is the same as the gas flowing direction out of the gas outlet 12. The length of second convex closure 1334 extends along vertical direction, can correct the flow direction of mixed gas, make mixed gas flow to gas outlet 12 along vertical direction, reduce the flow path of mixed gas, improve the mixed gas velocity of flow of second region 1332, and the length of first convex closure 1333 is the contained angle with vertical direction, first convex closure 1333 slope setting promptly, can make the slope direction flow of part mixed gas orientation first convex closure 1333, flow path with the extension mixed gas, reduce the mixed gas velocity of flow of first region 1331, thereby the mixed gas velocity of flow in each region of contraction portion 133 has on average been flowed, can improve the uniformity of flame height, reduce the shake of flame emergence in order to reduce the combustion noise.

Thereby improving the uniformity of the flow velocity of the mixed gas at the gas outlet 12.

Preferably, first convex closure 1333 inclines upwards towards the direction that draws mouthful 11, when the gas mixture flows through first convex closure 1333 department, first convex closure 1333 keeps away from the gas mixture that draws mouthful 11 department and receives earlier and blocks, the velocity of flow reduces greatly, wherein partial gas can lead first convex closure 1333 and be close to and draw mouthful 11 one side, and first convex closure 1333 receives and blocks after being close to the gas mixture that draws mouthful 11 department, the velocity of flow reduces lessly, so that mix the gas velocity of flow in the first region 1331 and be weakened and reduce gradually by keeping away from drawing mouthful 11 orientation that is close to the direction that draws mouthful 11, so that the gas velocity of flow that makes the first region 1331 of outflow is more unanimous.

Further, in order to effectively reduce the flow rate of the mixed gas in the first region 1331, the angle between the length direction of the first convex hull 1333 and the flow direction of the gas flowing through the first convex hull 1333 is a, and 0 ° < a < 90 °. Preferably, a is optionally 30 °, 45 °, 60 °, etc.

Specifically, the second region 1332 communicates with the baffling and mixing section 1312 through the transition portion 132, and the flow passage area of the transition portion 132 is gradually reduced from the baffling and mixing section 1312 to the second region 1332. Since the second region 1332 is not opposite to the outlet of the baffling mixing section 1312, part of the mixed gas can be guided to the second region 1332 through the transition part 132, and in the process that the mixed gas flows from the baffling mixing section 1312 to the transition part 132, the flow velocity of the mixed gas in the transition part 132 can be improved due to the gradual reduction of the flow passage area, and meanwhile, the gas resistance can be increased, so that the air and the gas can be mixed more fully.

Further, along the direction from the end far away from the injection port 11 to the end close to the injection port 11, the flow passage areas of all the second regions 1332 are sequentially reduced, that is, the flow passage area of the former second region 1332 is larger than that of the latter second region 1332. Since the flow speed of the mixed gas at the end of the transition portion 132 close to the outlet of the baffling mixing section 1312 is higher than that of the mixed gas at the end far from the outlet of the baffling mixing section 1312, the flow area of the second region 1332 where the second convex bulge 1334 is arranged is at least larger than that of the connection part between the transition portion 132 and the second region 1332, the flow area of the mixed gas flowing from the transition portion 132 to the second region 1332 is increased to reduce the flow speed of the mixed gas in the second region 1332, and the flow area of the second region 1332 closer to the injection port 11 is smaller, so that the flow speed variation of the mixed gas in the previous second region 1332 is larger than that of the mixed gas in the next second region 1332, the flow speeds of the mixed gas in all the second regions 1332 can be averaged, and the flow speed of the mixed gas in all the second regions 1332 is ensured to be the same as that of the mixed gas in the first region 1331.

Preferably, each injection piece 14 is provided with a plurality of second convex hulls 1334, and the number of the second convex hulls 1334 of the front second area 1332 is greater than that of the second convex hulls 1334 of the rear second area 1332 along the direction from one end of the injection port 11 to the end close to the injection port 11. This design can design second convex closure 1334 according to the structure of drawing passageway 13 to improve the velocity of flow homogeneity of all second region 1332 gas mixtures.

In an example, each injection piece 14 is provided with four second convex hulls 1334 at the front second area 1332, and two second convex hulls 1334 at the rear second area 1332.

Specifically, the top of fire hole bounding wall 2 is provided with a plurality of fire hole groups 21 along the length direction interval, fire hole group 21 aligns with gas outlet 12, part mixes the gas and can follow gas outlet 12 and fire hole group 21 outflow and burn, it all protrudes along width direction's both sides and is provided with a plurality of air guide convex hulls 15 to draw body 1, air guide convex hull 15 is located the top of first convex hull 1333 and second convex hull 1334, air guide convex hull 15 sets up with fire hole group 21 one-to-one, be formed with a plurality of independent steady flame chamber 3 between fire hole bounding wall 2 and the air guide convex hull 15, the top in steady flame chamber 3 has uncovered, be provided with a plurality of gas distribution holes 22 on the fire hole bounding wall 2, gas distribution hole 22 intercommunication steady flame chamber 3 draws and penetrates passageway 13, part mixes the gas and can pass gas distribution hole 22 flow direction steady flame chamber 3, and flow out from uncovered and burn. This design can reduce the gas volume of fire hole group 21 to reduce the burning load of fire hole group 21, because the volume of flame stabilizing cavity 3 is less moreover, make the gas mixture can't abundant burning in flame stabilizing cavity 3, the gas mixture that does not burn in flame stabilizing cavity 3 can diffuse to fire hole group 21 department and continue the burning, can prevent effectively that flame from taking place the shake, reduces the noise that the burning produced, improves the free combustion stability of burning.

Further, the top end surface of the air guide convex hull 15 is provided with a flow guide plate 4 extending upwards. The guide plate 4 can guide the flame of the flame stabilizing cavity 3 and the unburnt mixed gas to the fire hole group 21, so that the unburnt mixed gas in the flame stabilizing cavity 3 can be continuously combusted at the fire hole group 21, and the stability of the flame combustion in the fire hole group 21 is improved.

Illustratively, the baffle 4 is integrally formed with the ejector sheet 14.

Preferably, in order to increase the flow guiding effect of the deflector 4, the deflector 4 is inclined or bent by the air guiding convex hull 15 towards the fire hole group 21.

Specifically, fire hole group 21 includes main fire hole 211 and supplementary fire hole 212, and the length of main fire hole 211 and supplementary fire hole 212 all sets up along the width direction interval of fire hole bounding wall 2, and the length of main fire hole 211 is greater than the length of supplementary fire hole 212, and main fire hole 211 and supplementary fire hole 212 are arranged along the length direction interval of fire hole bounding wall 2. The gas volume of this design auxiliary fire hole 212 is less than main fire hole 211 gas volume, and the flame height of the auxiliary fire hole 212 department is lower after the burning, and the flame of auxiliary fire hole 212 can carry out local heating to the flame root of main fire hole 211 to improve combustion efficiency.

The utility model also provides a combustor, including the combustor monomer of shell and the arbitrary embodiment more than a plurality of, a plurality of combustor monomer parallel arrangement are in the shell. The gas outlet speed of the fire holes of the burner is uniform, the height consistency of burning flame is good, the flame is not easy to shake, and the burning is more stable.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The detailed description of the above embodiments only expresses several embodiments of the present invention, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a combustor monomer, includes injector (1) and fire hole bounding wall (2), injector (1) is provided with injection port (11) and gas outlet (12), fire hole bounding wall (2) cover is established gas outlet (12) department, injector (1) is provided with the intercommunication injection port (11) with draw jet passage (13) of gas outlet (12), draw jet passage (13) including draw portion (131), transition portion (132) and constriction (133) that set gradually and are linked together, its characterized in that, constriction (133) are including first region (1331) and two at least second regions (1332), first region (1331) with second region (1332) along keeping away from in injection port (11) one end orientation is close to the direction of drawing port (11) one end sets up at interval in proper order, first region (1331) orientation draw jet passage (13) center protrusion and be provided with first protruding package (1333), second region (1332) deviate from draw jet passage (13) center protrusion is provided with second protruding package (4).

2. The burner unit as claimed in claim 1, wherein the flow area of all the second regions (1332) decreases in sequence in a direction away from the end of the injection port (11) towards the end close to the injection port (11).

3. The burner unit as claimed in claim 2, wherein the injector body (1) includes two injection pieces (14), the two injection pieces (14) are combined to form the injection passage (13), each injection piece (14) is provided with the first convex hull (1333) and the second convex hull (1334), the first convex hulls (1333) on the two injection pieces (14) are arranged oppositely and at intervals, and the second convex hulls (1334) on the two injection pieces (14) are arranged oppositely and at intervals.

4. The burner unit according to claim 3, characterized in that each injection flap (14) is provided with a plurality of second protrusions (1334), the number of second protrusions (1334) of a preceding second region (1332) being greater than the number of second protrusions (1334) of a succeeding second region (1332) in a direction away from an end of the injection opening (11) towards an end close to the injection opening (11).

5. The burner unit as claimed in claim 1, wherein the first convex hull (1333) has a length direction which is disposed at an angle to the gas flow direction out of the gas outlet (12), and the second convex hull (1334) has a length direction which is the same as the gas flow direction out of the gas outlet (12).

6. The burner unit according to claim 5, wherein the angle between the length direction of the first convex hull (1333) and the flow direction of the gas flowing out of the gas outlet (12) is a,0 ° < a < 90 °.

7. The burner unit according to claim 5, characterized in that the first convex hull (1333) is inclined upwards towards the injection port (11).

8. The burner unit as claimed in any one of claims 1 to 7, wherein a plurality of fire hole groups (21) are arranged at the top of the fire hole enclosing plate (2) at intervals along the length direction, a plurality of air guide convex hulls (15) are arranged on both sides of the injection body (1) along the width direction in a protruding manner, the air guide convex hulls (15) are arranged above the first convex hull (1333) and the second convex hull (1334), the air guide convex hulls (15) and the fire hole groups (21) are arranged in a one-to-one correspondence manner, a plurality of flame stabilizing cavities (3) with open tops are formed between the fire hole enclosing plate (2) and the air guide convex hulls (15), and a plurality of air distributing holes (22) communicated with the flame stabilizing cavities (3) and the injection passage (13) are arranged on the fire hole enclosing plate (2).

9. The burner unit as claimed in claim 8, characterised in that the gas guiding dome (15) is provided with a flow deflector (4) extending upwards.

10. A burner comprising a housing, characterized by comprising a plurality of burner units as claimed in any one of claims 1 to 8, arranged in parallel within said housing.

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