CN205535823U - Simple and easy gas device that mixes of combustor - Google Patents
Simple and easy gas device that mixes of combustor Download PDFInfo
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- CN205535823U CN205535823U CN201620102741.5U CN201620102741U CN205535823U CN 205535823 U CN205535823 U CN 205535823U CN 201620102741 U CN201620102741 U CN 201620102741U CN 205535823 U CN205535823 U CN 205535823U
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Abstract
The utility model discloses a simple and easy gas device that mixes of combustor, it sets up in the air outlet of combustor fan department to mix the gas device, including retaining ring and gas gas outlet assembly, the retaining ring is fixed to be inlayed the dress and at the air outlet inner wall, has a separation blade on it and set up in air outlet's passageway, gas gas outlet assembly includes baffle and gas outlet duct, the gas outlet duct is fixed to be set up in air outlet to connect the intercommunication with the combustor gas of outside, its gas gas outlet is located air outlet's exit, the baffle stretches out from air outlet through the gas outlet duct. The utility model discloses a device simple, effective, preparation low cost, installation and debugging are very convenient, mix under the prerequisite of effect guaranteeing, have effectively shortened the length of the non - combustion zone of furnace end, it is even to realize mixing gas in the short distance, practices thrift equipment fixing simultaneously and moves the space, has reduced the installation cost of combustor.
Description
Technical field
This utility model belongs to gas-fired equipment technical field, is specifically related to the simple mixed gas of a kind of ultralow discharged nitrous oxides combustor.
Background technology
Existing conventional boiler, be equipped with is lance-type burner, lance-type burner has the special construction of metallic fiber burner, make to burn and occur on the surface of metal fibre interlacement, the short and small tight rush of combustion flame, i.e. can meet needs, and combustion even in less boiler furnace size, can effectively reduce the generation of NOx, therefore lance-type burner gradually starts more and more to be applied.
Gun-type combustor premixes after mostly being blower fan, and mixed gas uniformly needs longer mixing distance.When traditional gun-type combustor transform metallic fiber fully pre-mixing gas combustion combustor as, original stable flame pan structure and burner inner liner cannot meet the requirement of mixed gas, need the uniform mixing setting up mixed gas section to realize air fuel gas specially.Generally, increase sufficiently long mixed gas section length, more than 3 times of such as burner inner liner diameter, the area occupied is also corresponding big, good Blending Efficiency of Blending can be reached, but practical situation is that the installing space that the public places such as existing community, hotel can provide is limited, it is not necessary to can meet the requirement of in-site installation condition.Can also be by increasing the admission of combustion gas in air, promoting that air mixes with the quick of combustion gas, but need to design and produce special air duct and gas outlet on processing and fabricating, cost of manufacture increases, the more important thing is, the air-out inequality that centrifugal blower produces still cannot be eliminated.
Utility model content
This utility model solves the technical problem that and is: the mixed gas region existed for existing gun-type metallic fiber fully pre-mixing gas combustion combustor takies the limitation that size causes greatly, the simple gas mixing device of a kind of combustor is provided, gas mixed nub structure is simple, effectively, under ensureing good mixed gas effect premise, solve tradition remodeling method or make complicated, improvement expenses height, or mixed gas segment length lengthens too much drawback, it is especially suitable for tradition gun-type gas burner system and transform the mixed gas needs of metallic fiber fully pre-mixing gas combustion combustor as.
This utility model adopts the following technical scheme that realization:
The simple gas mixing device of a kind of combustor, described gas mixing device is arranged at the air outlet of combustor blower fan 6, including back-up ring 3 and gas outlet assembly 4；
Described back-up ring 3 is fixing is inlaid in air outlet 43 inwall, it has a catch 32 and is arranged in the passage of air outlet 43；
Described gas outlet assembly 4 includes baffle plate 41 and gas outlet pipe 42, described gas outlet pipe 42 is fixedly installed in air outlet 43, and connect with outside combustor gas joint 5, its gas outlet 44 is positioned at the exit of air outlet 43, and described baffle plate 41 is stretched out from air outlet 33 by gas outlet pipe 42.
Further, the gas outlet 44 of described gas outlet pipe 42 is clearance-type gas outlet or cellular type gas outlet, and described gas outlet 44 is evenly arranged along the circumference of gas outlet pipe.
Further, perforate in the middle part of described baffle plate 41, and pass perpendicularly through gas outlet pipe 42 and be fixedly installed, all gas outlets on described gas outlet pipe 42 are positioned at the same side of baffle plate.
Further, described back-up ring 35 includes the fixing tube structure 31 being installed on air outlet inwall, and described tube structure 31 is welded with catch 32, and described catch plays the effect of flow-disturbing air, the normal circulation of air be ensure that.
Preferably, the area of described catch 32 is less than the sectional area of 1/2 air outlet passage.
In this utility model, the air outlet of described combustor blower fan 6 connects combustor metal burner 1 by adpting flange 7.
After the air blasted by combustor blower fan enters, flow-disturbing effect is there is under the catch of back-up ring and the effect of baffle plate, gas outlet pipe is set in air outlet position simultaneously, blast combustion gas, under the flow-disturbing effect of air-flow, realizing combustion gas and air quickly mixes, the metal burner that can send into combustor in short distance space burns.
The device that this utility model uses is simple, effective, and cost of manufacture is cheap, installation and debugging extremely convenient.Not only achieve air-fuel gas and uniformly mix at the air outlet of blower fan, reduce the mixed gas segment length installed additional specially, in shorter length, effectively solve a difficult problem for gas skewness simultaneously, check through user's field practice, for the boiler of new production, it it is the low nitrogen burning modification scheme of a kind of effective low cost tradition gun-type combustor.
From the above mentioned, this utility model has the advantages that this utility model, on the premise of ensureing mixed effect, is effectively shortened the length in burner non-burning region, can realize mixed gas uniform in short distance, save equipment installation and operation space simultaneously, reduce the installation cost of combustor.
Below in conjunction with the drawings and specific embodiments, this utility model is described further.
Accompanying drawing explanation
Fig. 1 is the combustor overall schematic in embodiment 1.
Fig. 2 is the back-up ring schematic diagram in embodiment 1.
Fig. 3 a is the position relationship schematic diagram of the gas outlet assembly in embodiment 1 and baffle plate.
Fig. 3 b is the circulation schematic diagram of the combustion gas in embodiment 1 and air.
Fig. 4 a is the position relationship schematic diagram of the gas outlet assembly in embodiment 2 and baffle plate.
Fig. 4 b is the circulation schematic diagram of the combustion gas in embodiment 2 and air.
Label in figure: 1-metal burner, 2-lights a fire flame detecting probe, 3-back-up ring, 31-tube structure, 32-catch, 4-gas outlet assembly, 41-baffle plate, 42-gas outlet pipe, 43-air outlet, 44-gas outlet, 5-gas joint, 6-combustor blower fan, 7-adpting flange.
Detailed description of the invention
Embodiment 1
See Fig. 1, combustor in diagram includes metal burner 1, igniting flame detecting probe 2, back-up ring 3, gas outlet assembly 4, gas joint 5, combustor blower fan 6, adpting flange 7 etc., combustor in the present embodiment is gun-type combustor, and its combustor burner 1 uses metallic fiber burner.The metal burner 1 of combustor is connected by adpting flange 7 by the air outlet 43 of Flange joint combustor blower fan 6, back-up ring 3 and gas outlet assembly 4 are located at air outlet 43 position, gas joint 5 is connected with the gas outlet pipe 42 in gas outlet assembly 4, and igniting flame detecting probe 2 is installed in the metallic fiber net surface of combustor burner.
See Fig. 2, back-up ring 3 includes the fixing tube structure 31 being inlaid in air outlet inwall, the external diameter of tube structure 31 is equal to the internal diameter of air outlet, after being inlaid in air outlet inwall, carrying out screw locking also by the screw hole arranged on it, tube structure 31 is welded with catch 32, catch blocks the part arcuate region of air outlet, its area, less than the 1/2 of air outlet channel cross-sectional area, plays the effect of flow-disturbing air.
Concrete, gas outlet assembly 4 includes baffle plate 41 and gas outlet pipe 42；Gas outlet pipe 42 is arranged in air outlet 43, and connects with the gas joint 5 of combustor；Baffle plate 41 is stretched in the cylinder of adpting flange 7 from air outlet 43 by gas outlet pipe 42.The gas outlet 44 of gas outlet pipe 42 is clearance-type gas outlet or cellular type gas outlet, and gas outlet 44 is evenly arranged along the circumference of gas outlet pipe.Baffle plate 41 is circular, perforate in the middle part of it, and passes perpendicularly through gas outlet pipe 42 and be fixedly installed, and all gas outlets on gas outlet pipe 42 are positioned at the same side of baffle plate.
See Fig. 3 a and Fig. 3 b, gas outlet 44 in the present embodiment uses clearance-type gas outlet, on the same circumference of gas outlet pipe 42 leading portion, i.e. it is provided with some uniform clearance opening, baffle plate 41 is positioned at the rear side of clearance-type opening, air is blasted by combustor blower fan, the air being passed through by air outlet under the catch 32 of back-up ring and the effect of baffle plate 41 carries out flow-disturbing effect, and after the air after flow-disturbing walks around baffle plate 41, the combustion gas being passed through with baffle plate 41 rear effectively mixes.
The air outlet of combustor blower fan 6 directly can connect metal burner 1, owing to arranging the simple gas mixing device of the present embodiment in air outlet position, it is not necessary to additionally arrange single non-burning region and mix gas section by adpting flange 7.
Embodiment 2
In conjunction with seeing Fig. 4 a, Fig. 4 b, the present embodiment is with the difference of embodiment 1, gas outlet 44 in the present embodiment uses Kong Shi gas outlet, on the same circumference of leading portion of gas outlet pipe 42, i.e. it is provided with some uniform circular holes, the baffle plate 41 of gas outlet assembly is positioned on front side of the position, gas outlet of gas outlet pipe 42, the air and the combustion gas that are thered is provided by combustor blower fan and gas joint respectively mix before baffle plate, air before blender is carried out suitable flow-disturbing by the catch of back-up ring, improve the efficiency of mixing, then gaseous mixture unification is carried out flow-disturbing by baffle plate, quickly it is formed with the homogeneous mixture beneficially burnt.
On baffle plate in embodiment 1 and embodiment 2, can be suitable offer some through holes, improve gas circulation efficiency.
Embodiment above describes ultimate principle of the present utility model and principal character and advantage of the present utility model, skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, described in above-described embodiment and description, specific works principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model, this utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (6)
1. the simple gas mixing device of a combustor, it is characterised in that: described gas mixing device is arranged on combustor blower fan
(6) at air outlet, including back-up ring (3) and gas outlet assembly (4)；
Described back-up ring (3) is fixing is inlaid in air outlet (43) inwall, and it has a catch (32)
It is arranged in the passage of air outlet (43)；
Described gas outlet assembly (4) includes baffle plate (41) and gas outlet pipe (42), and described combustion gas goes out
Trachea (42) is fixedly installed in air outlet (43), and with outside combustor gas joint (5)
Connection, its gas outlet (44) is positioned at the exit of air outlet (43), described baffle plate (41)
Stretched out from air outlet (33) by gas outlet pipe (42).
The simple gas mixing device of a kind of combustor the most according to claim 1, described gas outlet pipe (42)
Gas outlet (44) be clearance-type gas outlet or cellular type gas outlet, described gas outlet (44) edge
The circumference of gas outlet pipe is evenly arranged.
The simple gas mixing device of a kind of combustor the most according to claim 2, described baffle plate (41) middle part is opened
Hole, and pass perpendicularly through gas outlet pipe (42) and be fixedly installed, all on described gas outlet pipe (42)
Gas outlet is positioned at the same side of baffle plate.
The simple gas mixing device of a kind of combustor the most according to claim 1, described back-up ring (35) includes solid
Surely being installed on the tube structure (31) of air outlet inwall, described tube structure is welded with on (31)
Catch (32).
The simple gas mixing device of a kind of combustor the most according to claim 4, the area of described catch (32)
Sectional area less than 1/2 air outlet passage.
6. according to the simple gas mixing device of a kind of combustor according to any one of claim 1-5, described combustor
The air outlet of blower fan (6) connects combustor metal burner (1) by adpting flange (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620102741.5U CN205535823U (en) | 2016-02-01 | 2016-02-01 | Simple and easy gas device that mixes of combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620102741.5U CN205535823U (en) | 2016-02-01 | 2016-02-01 | Simple and easy gas device that mixes of combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205535823U true CN205535823U (en) | 2016-08-31 |
Family
ID=56775266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620102741.5U Active CN205535823U (en) | 2016-02-01 | 2016-02-01 | Simple and easy gas device that mixes of combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205535823U (en) |
-
2016
- 2016-02-01 CN CN201620102741.5U patent/CN205535823U/en active Active
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