CN110425524A - A kind of low NO fire row, low NO and gas and hot water equipment - Google Patents
A kind of low NO fire row, low NO and gas and hot water equipment Download PDFInfo
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- CN110425524A CN110425524A CN201910470054.7A CN201910470054A CN110425524A CN 110425524 A CN110425524 A CN 110425524A CN 201910470054 A CN201910470054 A CN 201910470054A CN 110425524 A CN110425524 A CN 110425524A
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- hole
- low
- monolithic
- fire row
- gas
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 11
- 238000010923 batch production Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 description 18
- 239000003546 flue gas Substances 0.000 description 8
- -1 flue gas Compound Chemical class 0.000 description 6
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The present invention discloses a kind of low NO fire row, it is characterized in that, including the inner casing, shell and flame hole monolithic fitted together, first runner is constituted between the inner casing and the shell, the flame hole monolithic is the integrated molding part being arranged in the inner casing, integrally formed with several through-holes on the flame hole monolithic, each through-hole constitutes second flow channel.The present invention is by changing flame hole single chip architecture, making second flow channel size Control precision is high, ensures low nitrogen burning to be normally carried out and being conducive to batch production.The present invention also provides a kind of low NO and gas and hot water equipment.
Description
Technical field
The present invention relates to fluid heater technical field more particularly to a kind of low NO fire row, low NO and
Gas and hot water equipment.
Background technique
As shown in Figure 1 and Figure 2, in the prior art, the inner casing 01 of low NO fire row and 02 spacing of shell are formed first-class
Road 03 usually forms second flow channel 05 using 04 spacing of multi-disc flame hole monolithic in inner casing 01.Wherein, gas proportion is biggish
Pre-mixing gas combustion (being premixed with air) forms dense flame, the lesser premix combustion of gas proportion from second flow channel outflow after-combustion
Gas forms light flame from first runner outflow after-combustion, reduces the Nox content after burning using bias combustion.
However, since flame hole monolithic 04 is fixed by the fixing port of inner casing with inner casing 01.As fixing port size occurs partially
Difference then will appear flame hole monolithic 04 and misalign, influences burner performance.In addition, the flame hole of existing low NO fire row
Monolithic 04 is to need many places bending by the way that bending after substrate punching press is formed.After bending, multiple spot welding need to be carried out and fixed, form the
Two runners 05.Therefore, 0 complex process of flame hole monolithic of existing low NO fire row, can not often control monolithic well
Between spacing.Such as there is dimensional discrepancy, the nitrous oxides concentration generated after being easy to cause it to burn is higher or combustion resonance occurs
Phenomena such as.
Summary of the invention
Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a kind of second flow channel size Control precision
Height ensures that low nitrogen burning is normally carried out and is conducive to the low NO fire row of batch production.
It is another object of the present invention to provide a low NOs with above-mentioned low NO fire row.
It is yet a further object of the present invention to provide a kind of gas and hot water equipment with above-mentioned low NO.
To achieve the above objectives, the present invention adopts the following technical scheme:
A kind of low NO fire row, which is characterized in that including the inner casing, shell and flame hole monolithic fitted together,
First runner is constituted between the inner casing and the shell, the flame hole monolithic is the integrated molding being arranged in the inner casing
Part, integrally formed with several through-holes on the flame hole monolithic, each through-hole constitutes second flow channel.
It is further preferable that the outlet gross area of the first runner is 120~370mm2, the outlet of the second flow channel is total
Area is 110~330mm2, the outlet gross area of the second flow channel and the outlet gross area ratio of the first runner are in 0.5-
Between 1.5.
It is further preferable that the flame hole monolithic includes integrally formed side plate, top plate, the through-hole is located at the top plate
On, the two sides of the side plate and the inner casing are fixed；The top plate be plate or from two sides to the interior notch board of intermediate recess or by
Two sides are to intermediate outer protrusive board outstanding；
The top plate is divided into the left and right sides, and each through-hole is symmetricly set on two top sides of the flame hole monolithic；
Or, each through-hole is arranged on the top plate in a jumble between two parties.
It is further preferable that the flame hole monolithic includes integrally formed first monolithic of two difference and the second monolithic, institute
It states the first monolithic and second monolithic welds together and is symmetrical arranged, each through-hole is symmetricly set on first monolithic
On second monolithic.
It is further preferable that each through-hole is divided into several groups, passes through between two adjacent groups and be integrally formed in the flame hole
Shim on monolithic separates.
It is further preferable that in each group, between adjacent two through-hole between be divided into 0.5~5mm, each group is included described
The number of through-hole is identical or not identical, and the number for the through-hole that each group is included is 5-20；The width of the cutting plate is
0.5-10mm。
Fiery piece is passed it is further preferable that being equipped on the housing, described one end for passing fiery piece and the shell weld, described
The other end for passing fiery piece turns down outward.
It is further preferable that each through-hole is the strip through-hole being laterally or longitudinally arranged, each strip through-hole is mutual
In parallel；
Or, each through-hole is circular through hole；
Or, each through-hole is cross-shaped through hole；
Or, each through-hole is triangle through hole；
Or, each through-hole is diamond shape through-hole；
Or, each through-hole is polygonal through hole；
Or, each fire hole is flanging bore；
Or, the shape and/or size of each through-hole are inconsistent.
A kind of low NO, comprising: shell is arranged in the intracorporal several fire rows of the shell, which is characterized in that the fire
Row is low NO fire row as described above.
A kind of gas and hot water equipment, including gas and hot water apparatus body, and be arranged in the gas and hot water apparatus body
On burner, which is characterized in that the burner be low NO as described above；The gas and hot water equipment is combustion gas
Water heater or burnt gas wall hanging furnace.
The beneficial effects of the present invention are:
One, when Actual combustion, the biggish pre-mixing gas combustion of gas proportion (being premixed with air) is flowed out from second flow channel
After-combustion forms dense flame, and the lesser pre-mixing gas combustion of gas proportion forms light flame from first runner outflow after-combustion, by dense
It is light to burn to reduce the Nox after burning.Through practical test, burner is made using low NO fire row provided by the invention,
Nox content is lower than 15.0ppm in its flue gas, meets low nitrogen burning requirement.
Two, flame hole monolithic uses integrated formed structure, is easy to control the outlet size of second flow channel, raw convenient for batch
It produces, according to the technological level of current punching press, can guarantee the precision of the outlet size of second flow channel well, so that the burning of product
Product Nox amount is stablized, and is conducive to quality and controls.Particularly, in conjunction with the outlet gross area size of first runner and second flow channel, ratio
Example, it is ensured that stablizing for low nitrogen burning carries out.
Detailed description of the invention
Fig. 1 show existing low NO structural schematic diagram.
Fig. 2 show the partial top view of Fig. 1.
Fig. 3 show the low NO fire row partial sectional view of the offer of the embodiment of the present invention one.
Fig. 4 show the low NO fire row partial top view of the offer of the embodiment of the present invention one.
Fig. 5 show one moderate heat hungry ghosts who spit fire's single chip architecture schematic diagram of embodiment.
Fig. 6 show low NO fire row partial sectional view provided by Embodiment 2 of the present invention.
Fig. 7 show low NO fire row partial top view provided by Embodiment 2 of the present invention.
Fig. 8 show the flame simulating effect figure of the embodiment of the present invention two.
Fig. 9 show the low NO fire row partial sectional view of the offer of the embodiment of the present invention three.
Figure 10 show the low NO fire row partial top view of the offer of the embodiment of the present invention three.
Figure 11 show the low NO fire row partial sectional view of the offer of the embodiment of the present invention four.
Figure 12 show the low NO fire row partial top view of the offer of the embodiment of the present invention four.
Figure 13 show the low NO fire row partial sectional view of the offer of the embodiment of the present invention five.
Figure 14 show the low NO fire row partial top view of the offer of the embodiment of the present invention five.
Figure 15 show the low NO fire row partial sectional view of the offer of the embodiment of the present invention six.
Figure 16 show the low NO fire row partial top view of the offer of the embodiment of the present invention six.
Figure 17 show the low NO fire row partial sectional view of the offer of the embodiment of the present invention seven.
Figure 18 show the low NO fire row partial top view of the offer of the embodiment of the present invention seven.
Figure 19 show low NO structural schematic diagram provided by the invention.
Description of symbols:
01: inner casing, 02: shell, 03: first runner, 04: flame hole monolithic, 05: second flow channel.
1: burner inner casing, 2: burner housing, 3: flame hole monolithic, 4: first runner, 5: second flow channel, 6: separating
Piece, 7: guiding flame, 8: the fiery piece of biography, 9: shell, 10: fire row.
3-1: side plate, 3-2: top plate.
Specific embodiment
In the description of the present invention, it should be noted that " transverse direction ", " vertical if any term " center " for the noun of locality
To ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top",
The indicating positions such as "bottom", "inner", "outside", " clockwise ", " counterclockwise " and positional relationship are orientation based on the figure or position
Relationship is set, the narration present invention is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It constructs and operates with specific orientation, with particular orientation, should not be understood as limiting specific protection scope of the invention.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include
One or more this feature, in the present description, " at least " are meant that one or more, unless otherwise clearly having
The restriction of body.
In the present invention, except as otherwise clear stipulaties and restriction, should make if any term " assembling ", " connected ", " connection " term
Broad sense goes to understand, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It is also possible to mechanical connect
It connects；It can be directly connected, be also possible to be connected by intermediary, can be and be connected inside two elements.For ability
For the those of ordinary skill of domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In invention, unless otherwise specified and limited, fisrt feature second feature "upper" or "lower" may include
First and second features directly contact, also may include fisrt feature and second feature be not direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " under " and " above " include fisrt feature
Right above two features and oblique upper, or be only to indicate that first feature horizontal height is higher than the height of second feature.Fisrt feature
Second feature " on ", " under " and " below " include that fisrt feature is directly under or diagonally below the second feature, or only table
Show first feature horizontal height lower than second feature.
Below with reference to the attached drawing of specification, a specific embodiment of the invention is further described, is made of the invention
Technical solution and its benefits are clearer.It describes embodiment below with reference to attached drawing to be exemplary, it is intended to solve
The present invention is released, and is not considered as limiting the invention.
Embodiment one
As shown in Figure 3, Figure 4, a kind of low NO fire row, including the inner casing 1, shell 2 and flame hole fitted together
Monolithic 3, constitutes first runner 4 between the inner casing 1 and the shell 2, the flame hole monolithic 3 is arranged in the burner
In shell 1, several through-holes are equipped on the flame hole monolithic 3, each through-hole constitutes second flow channel 5.
Wherein, the burner inner casing 1, the burner housing 2 and the flame hole monolithic 3 are copper piece or stainless steel
Part.It is welded and fixed on the inside of 3 two sides of flame hole monolithic and the burner inner casing 1, to ensure to process packaging efficiency and fixation
Effect.
The flame hole monolithic 3 includes integrally formed side plate 3-1 and top plate 3-2, and each through-hole is arranged on the top
On plate 3-2, the two sides of the both side plate 3-1 and the inner casing 1 are welded and fixed；There is stress when fixed to avoid flame hole monolithic
Deformation caused by uneven.
The outlet gross area of the first runner 4 is 120~370mm2, the outlet gross area of the second flow channel is 110
~330mm2, the outlet gross area of the second flow channel and the outlet gross area ratio of the first runner are between 0.5-1.5.
In the present embodiment, the section of the preferably described flame hole monolithic 3 is M shape, and each through-hole is symmetricly set on the fire
Two top sides of hungry ghosts who spit fire's monolithic 3.It is preferred that the shape of each through-hole is rectangular aperture, the long side of the rectangular aperture and the flame
The length direction of mouth monolithic 3 is vertical, and each through-hole positioned at the same top side of the flame hole monolithic 3 is parallel to each other.In this way, can
Make flame to concentration in the middle part of burner, avoids the diverging of flame, combustion efficiency is provided.
It is preferred that the outlet gross area of the second flow channel 4 is 200mm, the outlet gross area of the preferably described first runner is
200mm。
As shown in connection with fig. 5, each through-hole is divided into several groups, passes through between two adjacent groups and is integrally formed in the flame hole
Shim 6 on monolithic 3 separates.The number for the second flow channel that each group is included is 5-20, and difference organizes included institute
The number for stating second flow channel 5 is identical or not identical, is arranged on demand according to the difference of product type.The benefit being arranged in this way is: having
Conducive to the supplement of auxiliary air, the adequacy of burning is further increased.
In the present embodiment, in preferably same group between adjacent two through hole between be divided into 1mm, the width of the preferably described shim
For 3mm.In other embodiments, in each group, being spaced between 0.5~5mm between adjacent two through-hole is arbitrarily selected,
The width of the cutting plate arbitrarily selects between 0.5-10mm；It is not limited to the present embodiment.
When Actual combustion, the biggish pre-mixing gas combustion of gas proportion (being premixed with air) flows out after-burning from second flow channel
Burning forms dense flame, and the lesser pre-mixing gas combustion of gas proportion forms light flame from first runner outflow after-combustion, passes through deep or light combustion
It burns to reduce the Nox after burning.Through practical test, burner is made using low NO fire row provided in this embodiment,
Nox content is 14.8ppm in flue gas, meets low nitrogen burning requirement.
A kind of low NO provided in this embodiment makes second flow channel using integrally formed flame hole single chip architecture
Outlet size be easy to control, convenient for batch production, according to the technological level of current punching press, can guarantee second flow channel well
The precision of outlet size is conducive to quality and controls so that the combustion product Nox amount of product is stablized.Particularly, in conjunction with first runner and
Outlet gross area size, the ratio of second flow channel, it is ensured that stablizing for low nitrogen burning carries out.
Embodiment two
As shown in Figure 6, Figure 7, a kind of low NO fire row provided in this embodiment, structure and embodiment one basic one
It causes, difference is:
One, the section of the flame hole monolithic 3 is door shape, and the flame hole monolithic 3 is arranged in each rectangular through-hole
The middle part of top plate 3-2.
Two, in same group, between adjacent two through hole between be divided into 1.5mm.The width of shim is between two adjacent groups
5mm。
Three, the outlet gross area of the second flow channel 4 is 260mm, and the outlet gross area of the preferably described first runner is
280mm。
Through practical test, using burner made from low NO fire row provided in this embodiment, nitrogen oxygen in flue gas
Compound content is 13.5ppm；It is much better than professional standard.The flame simulating of burner is as shown in Figure 8.
Embodiment three
As shown in Figure 9, Figure 10, a kind of low NO fire row provided in this embodiment, structure and embodiment one are basic
Unanimously, difference is:
One, the section of the flame hole monolithic 3 is door shape, and the shape of each through-hole is circular hole, is distributed in a jumble described
The middle part of top plate.
Two, in same group, the minimum interval between adjacent two through hole is 0.5mm.The width of shim between two adjacent groups
For 1mm.
Three, the outlet gross area of the second flow channel 4 is 330mm, and the outlet gross area of the preferably described first runner is
300mm。
Through practical test, using burner made from low NO fire row provided in this embodiment, nitrogen oxygen in flue gas
Compound content is 14.3ppm, meets low nitrogen burning requirement.
Example IV
As shown in Figure 11, Figure 12, a kind of low NO fire row provided in this embodiment, structure and embodiment one are basic
Unanimously, difference is:
One, the section of the flame hole monolithic 3 is door shape, and the shape of each through-hole is cross bore, is distributed in institute in a jumble
State the middle part of top plate.
Two, in same group, the minimum interval between adjacent two through hole is 2mm.The width of shim is between two adjacent groups
4mm。
Three, the outlet gross area of the second flow channel 4 is 110mm, and the outlet gross area of the preferably described first runner is
120mm。
Through practical test, using burner made from low NO fire row provided in this embodiment, nitrogen oxygen in flue gas
Compound content is 14.8ppm, meets low nitrogen burning requirement.
Embodiment five
As shown in figs. 13 and 14, a kind of low NO fire row provided in this embodiment, structure and embodiment one are basic
Unanimously, difference is:
One, the top plate is protruding upward, and each through-hole is the strip-shaped hole of both ends rounded corner, and each strip-shaped hole is distributed in a jumble
The middle part of the top plate, the length direction of each strip-shaped hole are parallel with the length direction of the flame hole monolithic 3.
Two, in same group, the minimum interval between adjacent two through hole is 3mm.The width of shim is between two adjacent groups
3mm。
Three, the outlet gross area of the second flow channel 4 is 330mm, and the outlet gross area of the preferably described first runner is
370mm。
Through practical test, using burner made from low NO fire row provided in this embodiment, nitrogen oxygen in flue gas
Compound content is 13.9ppm, meets low nitrogen burning requirement.
Embodiment six
As shown in Figure 15, Figure 16, a kind of low NO fire row provided in this embodiment, structure and embodiment one are basic
Unanimously, difference is:
One, the section of the flame hole monolithic 3 is door shape, and the through-hole includes strip-shaped hole and circular hole, and the strip-shaped hole is flat
The middle part of the top plate is arranged in row, and the both ends of the top plate are arranged in the round hole in a jumble.
Two, in same group, the minimum interval between adjacent two through hole is 4mm.The width of shim is between two adjacent groups
5mm。
Three, the outlet gross area of the second flow channel 4 is 200mm, and the outlet gross area of the preferably described first runner is
250mm。
Through practical test, using burner made from low NO fire row provided in this embodiment, nitrogen oxygen in flue gas
Compound content is 14.9ppm, meets low nitrogen burning requirement.
Embodiment seven
As shown in Figure 17, Figure 18, a kind of low NO fire row provided in this embodiment, structure and embodiment two are basic
Unanimously, difference is:
Guiding flame 7 protruding upward is equipped with around the through-hole.The fiery piece 8 of several biographies is equipped at 2 edge of shell.Into
One step improves combustion efficiency.
Through practical test, using burner made from low NO fire row provided in this embodiment, nitrogen oxygen in flue gas
Compound content is 13.6ppm, meets low nitrogen burning requirement.
Embodiment eight
As shown in figure 19, a kind of low NO, including shell 9 and several fire rows 10 for being arranged in the shell 9,
It is characterized in that, the fire row 10 is the low NO fire as described in any one embodiment into embodiment seven of embodiment one
Row.
A kind of low NO provided in this embodiment, all beneficial effects with low NO fire row, as
The specific structure of low NO, the various structures that can use various known or can be realized in the future, which is not described herein again.
Embodiment nine
A kind of gas and hot water equipment, including gas and hot water apparatus body, and be arranged in the gas and hot water apparatus body
On burner, which is characterized in that the burner is low NO as described in embodiment eight, which is
Gas heater or burnt gas wall hanging furnace.It, can be using existing known as gas heater or the specific structure of burnt gas wall hanging furnace
Or any form that can be realized in the future, which is not described herein again.
From the foregoing description of structures and principles it should be understood by those skilled in the art that, the present invention not office
It is limited to above-mentioned specific embodiment, this hair is all fallen within using the improvement of techniques well known and substitution on the basis of the present invention
Bright protection scope, protection scope of the present invention should limit it by each claim and its equivalent.In specific embodiment
The part not illustrated is the prior art or common knowledge.
Claims (10)
1. a kind of low NO fire row, which is characterized in that including the inner casing, shell and flame hole monolithic fitted together, institute
It states and constitutes first runner between inner casing and the shell, the flame hole monolithic is the integrated molding being arranged in the inner casing
Part, integrally formed with several through-holes on the flame hole monolithic, each through-hole constitutes second flow channel.
2. a kind of low NO fire row according to claim 1, which is characterized in that the total face in the outlet of the first runner
Product is 120~370mm2, the outlet gross area of the second flow channel is 110~330mm2, the outlet gross area of the second flow channel
Outlet gross area ratio with the first runner is between 0.5-1.5.
3. a kind of low NO fire row according to claim 1, which is characterized in that the flame hole monolithic includes one
Molding side plate, top plate, the through-hole are located on the top plate, and the two sides of the side plate and the inner casing are fixed；The top plate
For plate or from two sides to the interior notch board of intermediate recess or from two sides to intermediate outer protrusive board outstanding；
The top plate is divided into the left and right sides, and each through-hole is symmetricly set on two top sides of the flame hole monolithic；
Or, each through-hole is arranged on the top plate in a jumble between two parties.
4. a kind of low NO fire row according to claim 1, which is characterized in that the flame hole monolithic includes two
Integrally formed first monolithic and the second monolithic, first monolithic and second monolithic weld together and symmetrically set respectively
It sets, each through-hole is symmetricly set on first monolithic and second monolithic.
5. a kind of low NO fire row according to claim 1, which is characterized in that each through-hole is divided into several groups,
It is separated between two adjacent groups by the shim being integrally formed on the flame hole monolithic.
6. a kind of low NO fire row according to claim 5, which is characterized in that in each group, adjacent two through-hole
Between between be divided into 0.5~5mm, the number for the through-hole that each group is included is identical or not identical, and each group is included described
The number of through-hole is 5-20；The width of the cutting plate is 0.5~10mm.
7. a kind of low NO fire row according to claim 1, which is characterized in that be equipped with pass fire on the housing
Piece, described one end for passing fiery piece and the shell weld, and the other end for passing fiery piece turns down outward.
8. a kind of low NO fire row according to claim 1, which is characterized in that each through-hole is lateral or vertical
To the strip through-hole of setting, each strip through-hole is parallel to each other；
Or, each through-hole is circular through hole；
Or, each through-hole is cross-shaped through hole；
Or, each through-hole is triangle through hole；
Or, each through-hole is diamond shape through-hole；
Or, each through-hole is polygonal through hole；
Or, each fire hole is flanging bore；
Or, the shape and/or size of each through-hole are inconsistent.
9. a kind of low NO, comprising: shell is arranged in the intracorporal several fire rows of the shell, which is characterized in that the fire row
For the low NO fire row as described in any one of claim 1-8.
10. a kind of gas and hot water equipment, including gas and hot water apparatus body, and be arranged on the gas and hot water apparatus body
Burner, which is characterized in that the burner be low NO as claimed in claim 9；The gas and hot water equipment
For gas heater or burnt gas wall hanging furnace.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920526487 | 2019-04-18 | ||
| CN2019205264875 | 2019-04-18 |
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| CN110425524A true CN110425524A (en) | 2019-11-08 |
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| CN201910470054.7A Pending CN110425524A (en) | 2019-04-18 | 2019-05-31 | A kind of low NO fire row, low NO and gas and hot water equipment |
| CN201920813520.2U Active CN210688207U (en) | 2019-04-18 | 2019-05-31 | Low-nitrogen burner fire row, low-nitrogen burner and gas water heating equipment |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920813520.2U Active CN210688207U (en) | 2019-04-18 | 2019-05-31 | Low-nitrogen burner fire row, low-nitrogen burner and gas water heating equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949941A (en) * | 2022-12-21 | 2023-04-11 | 广东合胜热能科技有限公司 | Fire grate with concave-convex platform structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425524A (en) * | 2019-04-18 | 2019-11-08 | 广东万家乐燃气具有限公司 | A kind of low NO fire row, low NO and gas and hot water equipment |
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| CN115949941B (en) * | 2022-12-21 | 2023-08-08 | 广东合胜热能科技有限公司 | Fire row with concave-convex table structure |
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| CN210688207U (en) | 2020-06-05 |
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