CN109990274A - Porous heater, heater production method and the burner for being equipped with the heater - Google Patents
Porous heater, heater production method and the burner for being equipped with the heater Download PDFInfo
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- CN109990274A CN109990274A CN201711485572.3A CN201711485572A CN109990274A CN 109990274 A CN109990274 A CN 109990274A CN 201711485572 A CN201711485572 A CN 201711485572A CN 109990274 A CN109990274 A CN 109990274A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 19
- 239000000956 alloy Substances 0.000 claims abstract description 19
- 239000011230 binding agent Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 238000004663 powder metallurgy Methods 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims description 10
- 206010037660 Pyrexia Diseases 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 abstract description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 6
- 239000000567 combustion gas Substances 0.000 description 6
- 235000019441 ethanol Nutrition 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000005496 tempering Methods 0.000 description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 5
- 241000264877 Hippospongia communis Species 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 description 5
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 5
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 238000004898 kneading Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 241000257303 Hymenoptera Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000005915 ammonolysis reaction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 239000003974 emollient agent Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000006262 metallic foam Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1103—Making porous workpieces or articles with particular physical characteristics
- B22F3/1109—Inhomogenous pore distribution
-
- 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
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to a kind of porous heater, heater production method and the burners for being equipped with the heater, heater is powder metallurgy integral structural member, there is several perforative holes up and down on heater, it is made of powder metallurgic method, specifically comprises the following steps: a, to add binder in metal powder or alloy powder；B, metal powder or alloy powder after evenly mixing, are suppressed into the porous body with several through holes using the compacting tool set with several spicules；C, for green body after drying, removing binder, P/m Porous heater is made in the sinter molding in vacuum or protective atmosphere.Combustion stability, and simple process can be improved in the present invention not only stable structure, and production precision is high, and manufacturing cost is low, is particularly suitable for standard batch production.
Description
Technical field
The present invention relates to a kind of installation heater on the burner, in particular to a kind of porous heater and heater
Production method, while being related to that the burner of the porous heater is installed.
Background technique
The existing fever carrier on infrared burner of household gas stove has following two in the market, and one is bees
Nest ceramic heating carrier, wherein maximum with cordierite honeycomb ceramic fever carrier usage amount, stability is preferable, and cost performance is high, easily
In mass production.Another kind is metal beehive fever carrier, welds manufactured metal bee using the winding of stainless steel metal foil
Nest generates heat, and carrier dosage is larger, and this metal beehive fever carrier processing technology thereof is mature, is examined by the market of several years
It tests, there has also been large increases in terms of stability for product.
Wherein, ceramic honey comb heating board disadvantage is exactly that thermal shock resistance is poor, and infrared ceramic porcelain plate burner was using
Ceramic wafer is easily burst in journey, in addition, can only process vertical through-hole because the processing technology of ceramic wafer is limited, be easy to cause
Tempering.For metal sheet band wound form honeycomb heating body, needs to weld one layer of stainless (steel) wire in lower surface or be sent out in metal beehive
Hot body lower surface adds one layer of metal foam to play heat-insulated and balance airflow function, this is to overcome the excessively high appearance of metal material thermal conductivity
Burner is easily caused to generate tempering phenomenon, fever carrier medium itself wettability difference does not have steady air flow function that burner is caused to fire
Insufficient taken precautionary measures are burnt, but since there is metal material the characteristic expanded with heat and contract with cold and metal honeycomb heating body to use
Environment is more severe, and the metal honeycomb heating body of both the above structure has very big hidden danger in use.
Summary of the invention
The present invention is to provide a kind of stable structure main dissatisfied the technical issues of determining, and the porous hair of combustion stability can be improved
Hot body, while a kind of simple process being provided, production precision is high, and the heater production method that manufacturing cost is low, and is equipped with this
The burner of heater.
To achieve the above object, first technical solution of the invention is:
A kind of porous heater, is powder metallurgy integral structural member, has several perforative holes up and down on heater.
Further, the perforative hole is gradient pore, including the multistage being interconnected but diameter is different.
Further, the hole is two sections, respectively second hole in first hole on upper layer and lower layer, the diameter in first hole
Greater than the diameter in the second hole.
Further, the length in first hole on the upper layer is greater than the length in the second hole of lower layer.
Second technical solution of the invention is:
A kind of production method of porous heater is specifically comprised the following steps: using powder metallurgic method
A, binder is added in metal powder or alloy powder；
B, after evenly mixing, metal powder or alloy powder are suppressed using the compacting tool set with several spicules
Porous body with several through holes；
C, for green body after drying, removing binder, P/m Porous is made in the sinter molding in vacuum or protective atmosphere
Heater.
Further, the perforative hole is gradient pore, including the multistage being interconnected but diameter is different.
Further, the spicule has diameter gradient, matches with the diameter gradient in the hole.
Further, the diameter of the spicule increases in gradient from front to back.
Third technical solution of the invention is:
A kind of burner, including burner, are equipped with heater on the burner, and the heater is as described above more
Hole heater.
4th technical solution of the invention is:
A kind of burner, including burner are equipped with heater on the burner, and the heater is using as described above
Production method production.
In conclusion a kind of porous heater provided by the invention, heater production method and being equipped with the heater
Burner has the advantages that compared with prior art
(1) porous heater of the invention uses powder metallurgy integral structural member, not only stable structure, and burning can be improved
Stability.
(2) porous heater of the invention uses double-layer structure, and fire output hole therein uses graded pore structure, is more suitable for using
In on gas-fired equipment burner fever carrier use, when premixed gas from the small back-fire relief distribution layer in lower half portion aperture enter it is upper
When the big burning zone in half part aperture, premixed gas is lighted after one steady one puts, and flame is inside the aperture of porous body upper surface
It realizes and stablizes burning, greatly improve the stability of burning.
(3) present invention is suppressed in porous heater manufacturing process using the compacting tool set for being equipped with several spicules
Molding, not only simple process, production precision is high, and manufacturing cost is low, and stock utilization is high, and easy to form with gradient pore
Structure is particularly suitable for standard batch production.
Detailed description of the invention
Fig. 1 is heating element structure of the present invention.
As shown in Figure 1, heater 1, upper layer 1a, lower layer 1b, hole 2, the first hole 2a, the second hole 2b.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
Embodiment one:
It is powder metallurgy integral structural member, in heater 1 as shown in Figure 1, providing a kind of porous heater in the present embodiment
Upper to have several perforative holes 2 up and down, hole 2 is the fire output hole of burner, and combustion gas is burnt on the upper surface of heater 1.
The upper surface of heater 1 can be plane, or concave surface or male and female face.
Wherein, the diameter in hole 2 can the same thickness up and down, be straight hole structure, in the present embodiment, in order to make using this hair
The infrared radiation burner burning of heat carrier is more abundant, effectively burner is avoided tempering phenomenon occur, it is preferable that hole 2 is using ladder
The structure for spending hole, including the multistage being interconnected but diameter is different.The graded pore structure for more preferably using two-part, correspondingly sends out
Hot body 1 uses upper and lower two layers of structure.It is provided with several first holes 2a on the 1a of upper layer, is provided on lower layer 1b several
A second hole 2b, the first hole 2a and the second hole 2b or more connection form the through-hole that runs through with gradient through heater 1, excellent
Choose the diameter of the second hole 2b of the diameter of the first hole 2a of layer 1a greater than lower layer 1b, first hole 2a can be with one or simultaneously
Be connected to multiple second hole 2b, preferred each first hole 2a is connected to a second hole 2b in the present embodiment, i.e. the first hole 2a and
Second hole 2b is arranged in one-to-one relationship.In addition, the length of the first hole 2a is greater than the length of the second hole 2b, the i.e. thickness of upper layer 1a
Degree is significantly larger than the thickness of lower layer 1b, length between the first hole 2a and the second hole 2b than with aperture ratio according to different combustion gas
Body is different.
Premixed gas after combustion gas and air pre-mixing is introduced into the second hole 2b of lower layer 1b by premix chamber, using second
Hole 2b enters in the first hole 2a of upper layer 1a, burns on the upper surface of upper layer 1a.Due to the upper layer part 1a of porous heater 1
Aperture is big, and lower layer's 1b part aperture is small, and lower layer 1b can play the effect of back-fire relief, steady fire, when premixed gas is from the aperture lower layer 1b
When small back-fire relief distribution layer enters the big burning zone in the upper layer aperture 1a, premixed gas is lighted after one steady one puts, and flame is more
It is realized inside the aperture of hole body upper surface and stablizes burning.Wherein, crucial parameter is critical fire-extinction diameter (dFace), in the present embodiment,
Aperture size d≤d of the second hole 2b on lower layer 1bFace, to prevent tempering phenomenon, and the first hole 2a on the 1a of upper layer
Aperture size be necessary for d >=dFace, when mixed airflow enters the first hole 2a of upper layer 1a from the second hole 2b of lower layer 1b,
The quasi- number of pecklet generates suddenly change, and flame is stablized in upper layer 1a and burns after igniting.In general, to all combustion gas, Pe (pecklet
Quasi- number) critical value be about 65, Pe<65 of 1 lower layer 1b of heater, Pe>65 of upper layer 1a.Powder on gas-fired equipment burner
Only in this case, flame (upper layer 1a) could stablize propagation, burning, flame in porous body to the porous fever carrier of metallurgy
The stability of burning is greatly improved.
Porous heater 1 is androgynous different purpose gradient-structure body in the present invention, and not only structure is more stable, and steady fiery performance
More preferably, combustion-supporting effect is more preferable, burns more abundant, efficiency of combustion is higher, and is not likely to produce tempering phenomenon, is particularly suited for combustion gas
Fever carrier on equipment burner uses.
Embodiment two:
In the present embodiment, a kind of production method of porous heater is provided, using powder metallurgic method, specifically includes following step
It is rapid:
A, binder is added in metal powder or alloy powder.
Wherein, binder preferably uses water based adhesive, and the component of binder includes bonding component, plasticizer components, profit
Sliding component, solvent.Being bonded component mainly includes polyvinyl alcohol, and plasticizer components mainly include carboxymethyl cellulose, emollient component
It include mainly glycerol, solvent mainly includes ethyl alcohol, remaining is water.The formulation by weight of binder each component is preferably polyvinyl alcohol
10-15%, carboxymethyl cellulose 10-20%, glycerol 1-5%, ethyl alcohol 1-6%, remaining is water.
Metal powder or alloy powder include that chromium-nickel or chromium-nickel-molybdenum stainless steel, tin bronze, cathode copper, iron-chrome-aluminum are resistance to
Thermalloy, iron/copper dusty material.The weight proportion of metal powder or alloy powder and binder is preferably 70-80%: 30-
20%.
B, metal powder or alloy powder and binder after evenly mixing, utilize the compacting tool set for having several spicules
Metal powder or alloy powder are suppressed into the porous body with several through holes 2.
Perforative hole 2 be mutually all gradient pore described in embodiment one, including being interconnected but the different multistage of diameter.It is preferred that
Using the graded pore structure of two-part, correspondingly heater 1 uses upper and lower two layers of structure.It is provided on the 1a of upper layer several
A first hole 2a is provided with several second holes 2b, the first hole 2a and the second hole 2b or more connection on lower layer 1b and is formed and run through
Heater 1 runs through through-hole with gradient, and the diameter of the first hole 2a of upper layer 1a is straight greater than the second hole 2b of lower layer 1b
Diameter, the length of the first hole 2a are greater than the length of the second hole 2b.
The spicule being mounted on mold preferably uses stainless pin, and has diameter gradient, the diameter gradient phase with hole 2
Matching is two-part structure, and for the ease of demoulding, the diameter of spicule increases in gradient from front to back, i.e., front fine and rear thick, de-
Stainless pin is extracted out from green body while mould, that is, forms the above-mentioned different double-layer porous heater 1 of purpose of consubstantiality.
Specifically, the prepared alloy powder of ratio and water based adhesive are pre-mixed 40 points in blender by weight
Then clock is kneaded 120-150 minutes on kneading machine, base group is made, then places into more front fine and rear thick stainless steels
In the compacting tool set of needle, the compression moulding under the extruding force of < 200MPa.
C, green body is after drying, removing binder, and the sinter molding in vacuum or protective atmosphere, being made has androgynous different mesh
Structure P/m Porous heating element structure part.
Specially repressed green body is dry at a temperature of 200 DEG C of <, vacuum-sintering at a temperature of 750 DEG C -1350 DEG C, i.e.,
It can be made into the P/m Porous gradient-structure part with androgynous different mesh structure.
Such as example 1, when the alloy powder used is chromium-nickel, chromium-nickel-molybdenum stainless steel, the formulation by weight of binder is polyethylene
Alcohol 15%, carboxymethyl cellulose 15%, glycerol 5%, ethyl alcohol 3%, water 62%, by the prepared alloy of 80:20 weight ratio
Powder and water based adhesive are pre-mixed 40 minutes in blender, are then kneaded 120-150 minutes, are made on kneading machine
Base group is put into the pressing die with front fine and rear thick more stainless pins, the compression moulding under the extruding force of < 200MPa, pressure
Base is dry at a temperature of 200 DEG C of <, vacuum-sintering at a temperature of 1200-1350 DEG C, that is, can be made into androgynous different mesh structure
P/m Porous gradient-structure part.
Example 2, when the alloy powder used is tin bronze, cathode copper, iron/copper, the formulation by weight of binder is polyvinyl alcohol
15%, carboxymethyl cellulose 15%, glycerol 5%, ethyl alcohol 1%, water 64%, by the prepared alloyed powder of 60:40 weight ratio
End and water based adhesive are pre-mixed 30 minutes in blender, are then kneaded 100-120 minutes on kneading machine, base is made
Group, is put into the pressing die with front fine and rear thick more steel needles, suppresses under the extruding force of < 200MPa, green compact is in 200 DEG C of temperature of <
Lower drying is spent, using being sintered in ammonolysis craft protective atmosphere at a temperature of 750-850 DEG C, that is, can be made into androgynous different mesh structure
P/m Porous gradient-structure part.
Example 3, when the alloy powder used is iron-chrome-aluminum heat-resisting alloy, the formulation by weight of binder is polyvinyl alcohol
5%, carboxymethyl cellulose 25%, glycerol 1%, ethyl alcohol 5%, water 64%, by the prepared alloy powder of 90:10 weight ratio
It is pre-mixed in blender with water based adhesive 40 minutes, is then kneaded 120-150 minutes on kneading machine, base group is made,
It is put into the pressing die with front fine and rear thick more steel needles, is squeezed under the extruding force of < 200MPa, extruded stock is in 200 DEG C of temperature of <
Lower drying is sintered at a temperature of 1250-1350 DEG C in vacuum or the H2 of drying (- 60 DEG C of dew point) atmosphere, that is, can be made into has consubstantiality
The P/m Porous gradient-structure part of different mesh structure.
The present invention uses the compacting tool set compression moulding for being equipped with several spicules, not only simple process, process flow
Short, production precision is high, and manufacturing cost is low, and stock utilization is high, and the structure easy to form with gradient pore, is conducive to standard
Change and produces in enormous quantities.And the different target structure body of consubstantiality made by the technique, it is especially susceptible to real in the upper surface of heater
The structure of existing plane, concave surface or male and female face.
There is the different mesh structural body of consubstantiality of gradient pore using the spicule production with gradient, gel casting also can be used
Technique and injection molding technique make.
Embodiment three:
Place unlike the embodiments above is that the material of the upper layer 1a and lower layer 1b of heater 1 use pyroconductivity not
Same metal powder material or alloy powder material, upper layer 1a use the higher material of pyroconductivity, and lower layer 1b uses heat transfer
The lower material of rate forms androgynous anisotropic structure, and the first big hole 2a of aperture is arranged on the 1a of upper layer, is arranged on lower layer 1b
The second small hole 2b of aperture.The steady fiery performance of this kind of 1 structure of heater is more excellent, and flame can be more steady with the upper surface of heater 1
Fixed burning, and the generation of tempering phenomenon can be avoided completely.
Example IV:
A kind of burner, including burner are provided in the present embodiment, there is gas premixing chamber, one end of premix chamber on burner
It is connected with ejector pipe, heater 1 is installed above premix chamber, heater 1 is using porous as provided in embodiment one
Heater, the porous heater are made of the production method as provided in embodiment two.
Premixed gas after combustion gas and air pre-mixing is introduced into the second hole 2b of lower layer 1b by premix chamber, using second
Hole 2b enters in the first hole 2a of upper layer 1a, burns on the upper surface of upper layer 1a.The different mesh of consubstantiality used due to the heater 1
1 structure of porous heater, and upper layer 1a part aperture is big, and lower layer's 1b part aperture is small, when premixed gas is from the aperture lower layer 1b
When small back-fire relief distribution layer enters the big burning zone in the upper layer aperture 1a, lower layer 1b can play the effect of back-fire relief, steady fire, premix gas
Body is lighted after one steady one puts, and flame is realized inside the aperture of porous body upper surface stablizes burning.
As described above, the plan content in conjunction with given by attached drawing, can derive similar technical solution.But it is all not take off
Content from technical solution of the present invention, according to the technical essence of the invention it is to the above embodiments it is any it is simple modification, etc.
With variation and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of porous heater, it is characterised in that: be powder metallurgy integral structural member, have above and below several on heater
Perforative hole.
2. a kind of porous heater according to claim 1, it is characterised in that: the perforative hole is gradient pore, including
Interconnected but different diameter multistage.
3. a kind of porous heater according to claim 2, it is characterised in that: the hole is two sections, respectively upper layer
Second hole in the first hole and lower layer, the diameter in first hole are greater than the diameter in the second hole.
4. a kind of porous heater according to claim 3, it is characterised in that: the length in first hole on the upper layer is greater than
The length in the second hole of lower layer.
5. a kind of production method of porous heater, which is characterized in that use powder metallurgic method, specifically comprise the following steps:
A, binder is added in metal powder or alloy powder；
B, after evenly mixing, being suppressed metal powder or alloy powder using the compacting tool set with several spicules is had
The porous body of several through holes；
C, for green body after drying, removing binder, P/m Porous fever is made in the sinter molding in vacuum or protective atmosphere
Body.
6. a kind of production method of porous heater according to claim 5, it is characterised in that: the perforative hole is ladder
Hole is spent, including the multistage being interconnected but diameter is different.
7. a kind of production method of porous heater according to claim 6, it is characterised in that: the spicule has straight
Diameter gradient matches with the diameter gradient in the hole.
8. a kind of production method of porous heater according to claim 7, it is characterised in that: the diameter of the spicule
Increase in gradient from front to back.
9. a kind of burner, including burner are equipped with heater on the burner, it is characterised in that: the heater is power
Benefit requires the described in any item porous heaters of 1-4.
10. a kind of burner, including burner are equipped with heater on the burner, it is characterised in that: the heater uses
The described in any item production method production of claim 5-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711485572.3A CN109990274A (en) | 2017-12-30 | 2017-12-30 | Porous heater, heater production method and the burner for being equipped with the heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711485572.3A CN109990274A (en) | 2017-12-30 | 2017-12-30 | Porous heater, heater production method and the burner for being equipped with the heater |
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| Publication Number | Publication Date |
|---|---|
| CN109990274A true CN109990274A (en) | 2019-07-09 |
Family
ID=67111009
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711485572.3A Pending CN109990274A (en) | 2017-12-30 | 2017-12-30 | Porous heater, heater production method and the burner for being equipped with the heater |
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| CN (1) | CN109990274A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454841A (en) * | 2019-08-08 | 2019-11-15 | 华帝股份有限公司 | High-efficient honeycomb heating body for gas cooking utensils |
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| JPH0694224A (en) * | 1992-09-11 | 1994-04-05 | Toho Gas Co Ltd | Burner head |
| CN101195162A (en) * | 2006-12-04 | 2008-06-11 | 上海材料研究所 | Method of manufacturing stephanoporate metal honeycomb structure member |
| CN101476727A (en) * | 2009-01-20 | 2009-07-08 | 宁波雅佳厨具有限公司 | Infrared combustion panel with miniature air mixing chamber |
| CN102597625A (en) * | 2009-08-18 | 2012-07-18 | 山特维克知识产权股份有限公司 | Radiation burner |
| CN104075327A (en) * | 2014-07-15 | 2014-10-01 | 李芳春 | Variable fire hole formed by butt joint of small-diameter duct and large-diameter duct |
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| JPH0694224A (en) * | 1992-09-11 | 1994-04-05 | Toho Gas Co Ltd | Burner head |
| CN101195162A (en) * | 2006-12-04 | 2008-06-11 | 上海材料研究所 | Method of manufacturing stephanoporate metal honeycomb structure member |
| CN101476727A (en) * | 2009-01-20 | 2009-07-08 | 宁波雅佳厨具有限公司 | Infrared combustion panel with miniature air mixing chamber |
| CN102597625A (en) * | 2009-08-18 | 2012-07-18 | 山特维克知识产权股份有限公司 | Radiation burner |
| CN104075327A (en) * | 2014-07-15 | 2014-10-01 | 李芳春 | Variable fire hole formed by butt joint of small-diameter duct and large-diameter duct |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454841A (en) * | 2019-08-08 | 2019-11-15 | 华帝股份有限公司 | High-efficient honeycomb heating body for gas cooking utensils |
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