CN203517792U - Combustion radiator of blast rotation premixing porous medium gas stove - Google Patents

Combustion radiator of blast rotation premixing porous medium gas stove Download PDF

Info

Publication number
CN203517792U
CN203517792U CN201320595957.6U CN201320595957U CN203517792U CN 203517792 U CN203517792 U CN 203517792U CN 201320595957 U CN201320595957 U CN 201320595957U CN 203517792 U CN203517792 U CN 203517792U
Authority
CN
China
Prior art keywords
combustion
gas
air
combustion gas
porous medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320595957.6U
Other languages
Chinese (zh)
Inventor
徐江荣
王关晴
丁宁
罗丹
黄雪峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Dianzi University
Hangzhou Electronic Science and Technology University
Original Assignee
Hangzhou Electronic Science and Technology University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Electronic Science and Technology University filed Critical Hangzhou Electronic Science and Technology University
Priority to CN201320595957.6U priority Critical patent/CN203517792U/en
Application granted granted Critical
Publication of CN203517792U publication Critical patent/CN203517792U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a combustion radiator of a blast rotation premixing porous medium gas stove. A traditional gas stove is low in combustion efficiency, and high in emission concentration of pollutants such as CO and NOx. The combustion radiator of the blast rotation premixing porous medium gas stove comprises a draught fan and a gas rotation premixer, a gas injector and an air injector are arranged in the side direction of the middle-low end of the gas rotation premixer, the upstream portion of the air injector is connected with an outlet of the draught fan, an air flow even distributor is arranged above the gas rotation premixer, a porous medium premixer is arranged above the air flow even distributor, a gas flow stabilizing chamber is arranged above the porous medium premixer, and a porous medium combustion radiator is arranged above the gas flow stabilizing chamber. The combustion radiator of the blast rotation premixing porous medium gas stove is simple in structure, high in combustion efficiency and thermal efficiency, low in emission of the pollutants such as the CO and the NOx, and larger in combustion load variation.

Description

The burning radiation device of the rotary premixed porous-medium gas hot kitchen range of air blast
Technical field
The utility model belongs to multi-hole medium combustion technical field, relates to a kind of rotary premixed multi-hole medium combustion radiator, is suitable for the burner of civil gas stove.
Background technology
At present, in the burner of civil gas stove, the major way of gas-cooker proportioning air and combustion gas remains the nature injection primary air mode that adopts, utilize the natural mixed structure of air and combustion gas, and for strengthening injection effect, reduce drag losses, conventionally be not provided with premixer, must cause like this combustion gas before entering kitchen range burning, be difficult to abundant mixing, easily there is superfluous and foot phenomenon not in the air capacity that simultaneously injection mode is introduced, easily causing can not completing combustion, produce more CO, reduce efficiency of combustion and the thermal efficiency, therefore, how air capacity comparatively is accurately provided, strengthen air and gas premixing effect, to improving the efficiency of combustion of gas-cooker, have most important, secondly, most gas-cookers are all the kitchen ranges adopting with air nozzle, this gas burner is all the diffusion combustion flame mode that adopts high-speed jet substantially, for guaranteeing abundant burning, inhale the more surrounding air of volume, not only need gas burner to there is certain burning height and sufficient space, and need air nozzle to there is certain labyrinth, cause complex manufacturing, cost improves, and the height of Burning stove hole and the existence in space, will cause more heats to be delivered to surrounding space, cause amount of heat loss, reduce the thermal efficiency of gas-cooker.In addition, the diffusion combustion mode of this traditional free space, to mix effect closely related with inhaling volume around for its combustion efficiency, easily produces more CO and NOx.
Multi-hole medium combustion technology is a kind of New combustion technique, at operating on gaseous fuel, turns over all over having enhanced burning Strength and stability, improve efficiency of combustion and the thermal efficiency, reducing pollutant emission, and minimizing equipment volume etc. conveniently has powerful advantage.Multi-hole medium combustion technology is applied on civil gas stove, and to improving efficiency of combustion and the thermal efficiency that reduces civil gas stove, reducing the pollutant emissions such as NOx and CO provides a kind of effective way.
Summary of the invention
The utility model main purpose be to provide a kind of combustion intensity and the thermal efficiency high, pollutant emission is low, the burning radiation device of the rotary premixed porous-medium gas hot kitchen range of air blast that load variations is wider, simple in structure.
The utility model comprises blower fan and combustion gas impeller, the middle lower end side of combustion gas impeller to, being provided with at least one combustion gas enters emitter and at least one air and enters emitter, air enters emitter upstream and is connected with fan outlet, combustion gas impeller upper end is provided with air-flow uniform distributor, air-flow uniform distributor top is provided with porous media premixed device, and porous media premixed device top is provided with combustion gas plenum chamber, is provided with multi-hole medium combustion radiator above combustion gas plenum chamber.
Main design principle of the present utility model: the utlity model has multi-hole medium combustion radiator body, below combustion gas plenum chamber, porous media premixed device, rotary premixed chamber is connected, adopt blower fan to send minute, the incident of the multichannel circle of contact, utilize the rotary premixed and porous media premix mode of the circle of contact, use the thought of large coal-fired boiler tangential firing, in conjunction with the hot reflux self producing in multi-hole medium combustion, utilize porous media layering interfaces architectural characteristic to stablize fuel gas buring flame, assurance combustion gas is stable, in multi-hole medium combustion radiator, burn efficiently, the heat that burning produces directly heats pot and stove by the radiant heat transfer of porous media and the high-temperature flue gas of generation.This combustion method and technique can be widely used in the gas-cooker of the combustion gas of civilian and commercial Application, are particularly adapted to the high-efficiency cleaning burning of the powerful gas-cooker in large-scale dining room and restaurant.
The utility model has the advantages that directly circle of contact incident, rotary premixed, porous media premix, multi-hole medium combustion in one, utilization is supplied with multichannel air by blower fan, utilize combustion gas and air circle of contact incident cyclonic effect, in the rotary premixed flow field of the rotary premixed indoor formation circle of contact, after preliminary mixing, after utilizing air-flow uniform distributor to distribute, entering porous media premixed device and combustion gas plenum chamber carries out after the abundant premix of secondary, by multi-hole medium combustion technology, realize overheavy firing and the low pollutant emission of pre-mixing gas combustion, utilize the heat conduction that porous media solid is stronger, the rapid transferring heat of radiant heat transfer characteristic, the combustion intensity of enhanced burning device, improve the thermal efficiency and the efficiency of combustion of gas-cooker, reduce pollutant emission, be conducive to realize the simple in structure of gas-cooker, miniaturization.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model the first embodiment;
Fig. 3 a is a kind of laying mode of the utility model the second embodiment;
Fig. 3 b is the another kind of laying mode of the utility model the second embodiment;
Fig. 4 is the utility model the 3rd embodiment;
Fig. 5 is the axial incident mode of air and combustion gas injector.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
As shown in Figure 1, the utility model device comprises blower fan 2, rotary premixed device 6, the middle lower end side of rotary premixed device 6 to, be respectively equipped with that air enters emitter 5 and combustion gas enters emitter 7, air enters emitter 5 upstreams and is connected with fan outlet 3 by air duct 4, on blower fan with air intake 1; Fuel gas inlet 9 is introduced combustion gas by gas pipeline 8 and is entered emitter 7, combustion gas rotation premixed device 6 tops are provided with air-flow uniform distributor 10, air-flow uniform distributor 10 tops are provided with porous media premixed device 11, porous media premixed device 11 tops are provided with combustion gas plenum chamber 12, and combustion gas plenum chamber 12 tops are provided with multi-hole medium combustion radiator 14 by bracing frame 13.Combustion gas enters the total number that emitter and air enter emitter can need to be designed to 2 according to gas-cooker, 3 or 4.Combustion gas and air enter emitter, the rotary premixed device of circle, air-flow uniform distributor, porous media premixed device, the isostructural concrete size of multi-hole medium combustion radiator, can carry out corresponding Calculation of Heat Transfer according to the specific design load range of gas-cooker, determine.
It is nozzle that air and combustion gas enter emitter, or is small-bore pipeline.
The sum that air and combustion gas enter emitter is set to 2, or is set to as required 3 or 4, and the import arrangement under respective numbers is respectively as shown in Fig. 2, Fig. 3 a and Fig. 3 b, Fig. 4.
When air and combustion gas enter 4 layouts of emitter sum employing, conventionally adopt quadrangle tangential circle mode to arrange, as shown in Figure 4.
Air enters emitter quantity when a plurality of, need enter between emitter and fan outlet, air to be set and to thread a pipe more at air; Described combustion gas enters emitter quantity when a plurality of, need enter combustion gas multiple-way duct is set between emitter and fuel gas inlet in combustion gas.
The angle γ that combustion gas and air enter the shaft section incident direction of emitter and the entrance cross-section of combustion gas impeller is that between 0 degree-10 degree, optimum optimization angle is 7 degree.The incident direction of import cross section can be that between 10 degree-20 degree, optimum optimization angle is 17 degree, as shown in Figure 2 and Figure 5 for tangential or rotating eccentricity angle β.
Combustion gas rotation internal mixer is cavity, maybe can be provided with and be beneficial to the rotation deflector that combustion gas eddy flow mixes.
Air-flow uniform distributor is a kind of in the honeycomb ceramic plate, foamed ceramic panel, metal otter board, foam metal plate of high density holes.
Porous media in porous media premixed device is packed particle, and shape can be spherical, cylindrical, rectangle, petal, and other polymorphic structure bodies, and the porosity that packed particle is piled up the porous media premixed device forming should remain between 0.4-0.8.
Combustion gas current stabilization chamber interior is cavity, maybe can be provided with the deflector that is beneficial to combustion gas current stabilization.
Porous media in multi-hole medium combustion radiator is comprised of the wide-aperture porous media of porous media and top of small-bore, bottom.
The voidage of porous media is 0.5~0.99.
A kind of in the honeycomb ceramic plate that small-bore porous media 15 in multi-hole medium combustion radiator is high density holes, foamed ceramic panel, metal otter board, foam metal plate.
Multi-hole medium combustion radiator large pore porous media 16 is aperture, the uniform foams of voidage, honeycomb ceramics, or bottom-up foams, the honeycomb ceramics increasing gradually in aperture, voidage.
Utilize the method that the burning radiation device in the utility model burns to be: during gas-cooker work, while opening Gas Load knob, corresponding load signal passes to blower fan simultaneously, blower fan is according to corresponding load signal, open corresponding load aperture, air by blower fan along air duct, utilize air to enter emitter and enter rotary premixed device, with by combustion gas, enter the combustion gas that emitter enters impeller, in impeller, form circle of contact mixing flow field, carry out elementary premix, after air-flow uniform distributor carries out current stabilization, entering porous media premixed device carries out after the abundant premix of secondary, after combustion gas plenum chamber carries out secondary current stabilization, enter multi-hole medium combustion radiator, the small-bore porous media of multi-hole medium combustion radiator lower end not only can carry out preheating to fresh combustion gases, and can prevent the generation of combustion flame tempering phenomenon, utilize porous media combustor architectural characteristic the flame front that catches fire to be stabilized on the layering interfaces of big or small bore diameter porous medium simultaneously, and in the porous media of large aperture, carry out the multi-hole medium combustion of nonflame, heat after burning directly heats pot and stove by the hyperthermia radiation heat transfer of porous media and the high-temperature flue gas producing.This combustion method and technique can be widely used in civilian and gas-cooker commercial Application, are particularly adapted to the high-efficiency cleaning burning of the powerful gas-cooker in large-scale dining room and restaurant.
The utility model is directly integrated in one circle of contact incident, rotary premixed, porous media premix, multi-hole medium combustion, utilization is supplied with multichannel air by blower fan, utilize combustion gas and air circle of contact incident cyclonic effect, in the rotary premixed flow field of the rotary premixed indoor formation circle of contact, after preliminary mixing, after utilizing air-flow uniform distributor to distribute, entering porous media premixed device and combustion gas plenum chamber carries out after the abundant premix of secondary, by multi-hole medium combustion technology, realize overheavy firing and the low pollutant emission of pre-mixing gas combustion, adopt porous media structure distribution character that combustion flame is controlled on porous media layering interfaces, utilize the heat conduction that porous media solid is stronger, the rapid transferring heat of radiant heat transfer characteristic, the combustion intensity of enhanced burning device, improve the thermal efficiency and the efficiency of combustion of gas-cooker, reduce the discharge of pollutant, make burning radiation device structure simpler, compact, volume is less.

Claims (1)

1. the burning radiation device of the rotary premixed porous-medium gas hot kitchen range of air blast, it is characterized in that: comprise blower fan and combustion gas impeller, the middle lower end side of combustion gas impeller to, being provided with at least one combustion gas enters emitter and at least one air and enters emitter, air enters emitter upstream and is connected with fan outlet, combustion gas impeller upper end is provided with air-flow uniform distributor, air-flow uniform distributor top is provided with porous media premixed device, porous media premixed device top is provided with combustion gas plenum chamber, is provided with multi-hole medium combustion radiator above combustion gas plenum chamber.
CN201320595957.6U 2013-09-25 2013-09-25 Combustion radiator of blast rotation premixing porous medium gas stove Expired - Fee Related CN203517792U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320595957.6U CN203517792U (en) 2013-09-25 2013-09-25 Combustion radiator of blast rotation premixing porous medium gas stove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320595957.6U CN203517792U (en) 2013-09-25 2013-09-25 Combustion radiator of blast rotation premixing porous medium gas stove

Publications (1)

Publication Number Publication Date
CN203517792U true CN203517792U (en) 2014-04-02

Family

ID=50376721

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320595957.6U Expired - Fee Related CN203517792U (en) 2013-09-25 2013-09-25 Combustion radiator of blast rotation premixing porous medium gas stove

Country Status (1)

Country Link
CN (1) CN203517792U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103528062A (en) * 2013-09-25 2014-01-22 杭州电子科技大学 Combustion radiator of blast rotation pre-mixed porous medium gas stove and combustion method thereof
CN104566367A (en) * 2014-12-02 2015-04-29 中国矿业大学 Low-concentration coal bed gas or gas combustor and matched system thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103528062A (en) * 2013-09-25 2014-01-22 杭州电子科技大学 Combustion radiator of blast rotation pre-mixed porous medium gas stove and combustion method thereof
CN103528062B (en) * 2013-09-25 2015-10-28 杭州电子科技大学 The fire radiant of the rotary premixed porous-medium gas hot stove of air blast and combustion method thereof
CN104566367A (en) * 2014-12-02 2015-04-29 中国矿业大学 Low-concentration coal bed gas or gas combustor and matched system thereof

Similar Documents

Publication Publication Date Title
CN103528060B (en) The fire radiant of many injections circle of contact premixing porous medium gas-cooker and combustion method
CN103528062B (en) The fire radiant of the rotary premixed porous-medium gas hot stove of air blast and combustion method thereof
CN203517791U (en) Combustion radiator of multi-injection tangential pre-mixing porous medium gas stove
CN105805741A (en) Gas burner and burning method achieving ultra-low nitrogen oxide emission
CN203517792U (en) Combustion radiator of blast rotation premixing porous medium gas stove
CN203731411U (en) Oxygen-enriched combustion-supporting energy saving combustor for industrial furnace
CN202613442U (en) Blast fully-premixing combustor
CN203628651U (en) Combustor
CN107543160A (en) A kind of ultralow nitrogen gas burner
CN205480976U (en) Hierarchical ultralow nitrogen gas burner of strong whirl fuel
CN111121005B (en) Decoupling gas burner and using method thereof
CN205504983U (en) Gas recirculation low NOx burner in combustion -supporting wind injection type stove
CN205137451U (en) Force to draw low NOx gas combustion ware of penetrating flue gas backward flow
CN205351311U (en) Combustor chassis and combustor
CN106196054A (en) The cyclone classification of a kind of center water conservancy diversion regulation and the burner of temperature-controllable
CN206803143U (en) A kind of low boiling fuel-staged combustion device and its system
CN206724157U (en) Low boiling fuel burner
CN109695875A (en) A kind of more injection tubular type fire pieces
CN106196051B (en) A kind of tubule premixed swirl low stain gas burner
CN104832923B (en) A kind of converter nose burner
CN2830902Y (en) Full premixed burner of gas water heater
CN206439826U (en) It is pre-mixed fletcher radial burner
CN208139268U (en) Gas fired-boiler burner and gas-fired Boiler System
CN209639002U (en) A kind of more injection tubular type fire pieces
CN209161475U (en) A kind of natural gas catalysis oxidation catalyst for preparing synthesized gas carrier

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140402

Termination date: 20160925

CF01 Termination of patent right due to non-payment of annual fee