CN103727653A - Negative-pressure injection type full-premix sectional combustion heating device - Google Patents
Negative-pressure injection type full-premix sectional combustion heating device Download PDFInfo
- Publication number
- CN103727653A CN103727653A CN201310733714.9A CN201310733714A CN103727653A CN 103727653 A CN103727653 A CN 103727653A CN 201310733714 A CN201310733714 A CN 201310733714A CN 103727653 A CN103727653 A CN 103727653A
- Authority
- CN
- China
- Prior art keywords
- gas
- combustion
- negative
- heating plant
- sectional
- 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.)
- Pending
Links
Images
Abstract
The invention relates to a negative-pressure injection type full-premix sectional combustion heating device which comprises a shell, a fuel sectional supply system, a combustion chamber, a heat exchange system and an induced draft type smoke exhaust system. The fuel sectional supply system comprises gas pipes and a gas distribution cavity connected with the gas pipes, an electromagnetic valve A, an electromagnetic valve B, gas inlet cavities and gas nozzles are further arranged on the gas distribution cavity, annular gas inlets which are communicated with the shell are formed in the outer peripheries of gas nozzle groups in a surrounding manner, an injection type mixer is arranged at a position aligned with each gas nozzle, and a distribution orifice plate and a fire orifice plate are sequentially arranged on the top of each injection type mixer from bottom to top; the combustion chamber is arranged above the injection type mixers. The negative-pressure injection type full-premix sectional combustion heating device has the advantages that the negative-pressure injection type full-premix sectional combustion heating device is compact in structure, and is high in load regulating ratio range owing to a sectional combustion control technology, gas and air can be thoroughly mixed with each other when the heating device runs, a full-premix combustion mode is adopted, emission loads of carbon monoxide and nitrogen oxide in combustion products are low, and a low pollutant emission effect can be realized in gas combustion procedures.
Description
Technical field
The present invention relates to a kind of system of utilizing combustion gas to carry out heat supply, domestic hot-water supply, relate in particular to the full premix zoned firing system of a kind of negative-pressure ejecting formula.
Background technology
Gas heating system is that the heat that utilizes fuel gas buring process to discharge carrys out the device to heat supply working medium (water) heating.Wherein the combustion system of combustion gas is divided into partially premixed burning and full premix combustion.Partly-premixed combustion process nitrogen oxide is higher, and along with environmental requirement is more and more higher, partly-premixed combustion system will be eliminated gradually.Full premix combustion mode has advantages of pollutant low emission, and all-premixing burner mostly is cylinder type in the market, and the heat exchanger matching is cylinder type heat exchanger.But thing followed problem is because the relative finned heat exchanger of cylinder type heat exchanger cost wants high, and the hybrid system of cylinder type all-premixing burner needs is more complicated and cost is high, has therefore caused the gross investment of whole gas heating system and expense higher.Inventor had once creatively invented a kind of malleation injection type full premix combustion heating plant (application number: 201310135997.7), although this heating plant can overcome above-mentioned shortcoming, but the adjustable range of heating demand ratio is little, heating plant inner combustion chamber is in barotropic state in addition, combustion product has and infiltrates through indoor possibility, will pollute indoor environment.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides the full premix sectional combustion of a kind of negative-pressure ejecting formula heating plant, compact conformation, sectional combustion control technology makes it have load regulation rate in a big way, during heating plant operation, combustion gas and air mix completely, and combustion system belongs to full premix combustion, and in combustion product, the discharge capacity of carbon monoxide and nitrogen oxide is lower, realized the low pollutant emission of fuel gas buring process, the present invention is simple in structure, it is less to invest.
In order to solve the problems of the technologies described above, the technical scheme that the full premix sectional combustion of negative-pressure ejecting formula of the present invention heating plant is achieved is: this heating plant comprises housing, fuel segmentation supply system, combustion chamber, heat-exchange system and induced air type smoke evacuation system, described fuel segmentation supply system comprises Gas Pipe and coupled combustion gas distribution cavity, in described combustion gas distribution cavity, be also provided with magnetic valve A and magnetic valve B, the top of described magnetic valve A and magnetic valve B arranges respectively an inlet chamber, one group of gas nozzle is respectively set on described inlet chamber, round the periphery of this group gas nozzle, be provided with the annular air scoop connecting with housing, the position aligning with each gas nozzle is provided with an inspirator mixer respectively, the top of described inspirator mixer is provided with distributing pore plate and orifice from bottom to top, the bottom of described inspirator mixer is provided with interior air inlet, described combustion chamber is located at the top of described inspirator mixer, described heat-exchange system comprises the cold water pipe and the hot-water line that are connected with heat exchanger, and described heat exchanger is arranged on the top of described combustion chamber, and described heat exchanger adopts finned heat exchanger, described induced air type smoke evacuation system comprises blower fan, exhaust fume collecting hood and balanced flue, described exhaust fume collecting hood is arranged on the top of described heat exchanger, described blower fan is arranged on the inside of described exhaust fume collecting hood, described balanced flue is provided with external air inlet mouth, described balanced flue is connected with described blower fan, and flue gas enters balanced flue through blower fan.
The full premix sectional combustion of negative-pressure ejecting formula of the present invention heating plant, wherein, described blower fan is forced-ventilated explosion-proof fan, it is subnormal ambient that air enters by external air inlet mouth the middle hole that housing and fuel segmentation supply system, combustion chamber, heat-exchange system form, and air stream is negative pressure before interior air inlet arrives inspirator mixer.
Described combustion gas distribution cavity is according to heating plant load of heat, the number by switch electromagnetic valve A and magnetic valve B segmentation control gas-flow through nozzle, and then control the region of orifice fire hole burning.
Every group of gas nozzle comprises multiple gas nozzles, and the diameter of gas nozzle is 1.2～2.5mm, and the load of each gas nozzle is 1～5kW, and the number of gas nozzle depends on the rated heat input, rated heat load of heating plant.
The needed air of the combustion gas that heating plant is all and fuel gas buring, all after inspirator mixer mixes, the distributing pore plate of flowing through again and orifice, the thermal intensity of fire port of orifice is 5～25W/mm, the number of inspirator mixer depends on the rated heat input, rated heat load of heating plant.
Compared with prior art, the invention has the beneficial effects as follows:
(1) the partly-premixed combustion system of the many employings of state's inner burner at present, NO
xdischarge capacity is greater than 110PPm, and this new structure adopt be full premix combustion mode, CO and NO
xdischarge capacity obviously reduces, especially for NO
xemission reduction effect is remarkable, under the condition that is 1.25 at excess air coefficient, and NO
xlower than 40PPm.In addition, this new structure adopts multiple inspirator mixers to mix, can meet combustion gas and air completely mixed, this hybrid system project organization is simple, the blender cost adopting with respect to external all-premixing burner is lower, has broken through the technical monopoly of external all-premixing burner enterprise to this series products.
(2) the full premix sectional combustion of a kind of negative-pressure ejecting formula of the present invention heating plant utilizes combustion gas full premix combustion mode to carry out supplying hot water and domestic hot-water, and its compact conformation makes full use of combustion gas self pressure and mixes, and has reduced the energy consumption of system.The sectional combustion that structure of the present invention adopts is widened the adjustable extent of all-premixing burner thermic load greatly, has reduced the possibility of full premix combustion generation tempering under underload.The present invention adopts flat orifice and finned heat exchanger to match, and has reduced the cost cost of system.In the present invention, the design of the arc of orifice can prevent the distortion that orifice high temperature produces.Due to the design of overall subnormal ambient, the product of gas heating device burning can not be entered by external maintenance structure indoor, this safe design has guaranteed the security that heating plant uses, and has reduced the harmfulness of flue gas to indoor environmental pollution.The present invention not only can, for business and civilian heat supply and domestic hot-water supply system, also can be used for middle-size and small-size industrial heating and hot-water supply system.
Accompanying drawing explanation:
Fig. 1 is the structural representation of the full premix sectional combustion of negative-pressure ejecting formula of the present invention heating plant;
Fig. 2 is the full premix sectional combustion of negative-pressure ejecting formula of the present invention heating plant process chart;
Fig. 3 is the inspirator mixer structural representation of structure applications of the present invention gas heater burner;
Fig. 4 is the segmental structure of combustion gas distribution system in the present invention;
In figure:
1-magnetic valve A, 2-magnetic valve B, 3-outer end cap, 4-nozzle, 5-distribution cavity, 6-inlet chamber, 7-Gas Pipe, 8-blower fan, 9-flue, 10-inspirator mixer, 11-dispensing orifice, 12-orifice, 13-combustion chamber, 14-cold water pipe, 15-hot-water line, 16-heat exchanger, 17-exhaust fume collecting hood, 18-housing, 19-external air inlet mouth, air inlet in 20-.
The specific embodiment
Below in conjunction with the specific embodiment, the full premix sectional combustion of a kind of negative-pressure ejecting formula of the present invention heating plant is described in further detail.
As shown in Figure 1, the full premix sectional combustion of a kind of negative-pressure ejecting formula of the present invention heating plant, comprises housing 18, fuel segmentation supply system, combustion chamber 13, heat-exchange system and induced air type smoke evacuation system.
Described fuel segmentation supply system comprises Gas Pipe 7 and coupled combustion gas distribution cavity 5, in described combustion gas distribution cavity 5, be also provided with magnetic valve A1 and magnetic valve B2, the top of described magnetic valve A1 and magnetic valve B2 arranges respectively an inlet chamber 6, one group of gas nozzle 4 is respectively set on described inlet chamber 6, every group of gas nozzle 4 comprises multiple gas nozzles 4, the diameter of gas nozzle 4 is 1.2～2.5mm, the load of each gas nozzle 4 is 1～5kW, and the number of gas nozzle 4 depends on the rated heat input, rated heat load of heating plant.Round the periphery of this group gas nozzle 4, be provided with the annular air scoop connecting with housing 18, the position aligning with each gas nozzle 4 is provided with an inspirator mixer 10 respectively, the top of described inspirator mixer 10 is provided with distributing pore plate 11 and orifice 12 from bottom to top, described orifice is flat orifice, also can be protruding arc plate, its radian is less than 1rad, fire hole on described orifice is shaped as square, one in circle and the shape of a hoof, wherein, preferably shape of a hoof fire hole structure, this shape of a hoof fire hole can effectively prevent the thermal oscillation that combustion process produces.
The bottom of described inspirator mixer 10 is provided with interior air inlet 20, described combustion gas distribution cavity 5 is according to heating plant load of heat, number by switch electromagnetic valve A1 and magnetic valve B2 segmentation control gas-flow through nozzle 4, and then control the region of orifice 12 fire holes burnings.The needed air of the combustion gas that heating plant is all and fuel gas buring, all after inspirator mixer 10 mixes, then flow through distributing pore plate 11 and orifice 12, the thermal intensity of fire port of orifice 12 is 5～25W/mm
2, the number of inspirator mixer 10 depends on the rated heat input, rated heat load of heating plant.
Described combustion chamber 13 is located at the top of described inspirator mixer 10.
Described heat-exchange system comprises the cold water pipe 14 and the hot-water line 15 that are connected with heat exchanger 16, described heat exchanger 16 is arranged on the top of described combustion chamber 13, described heat exchanger 16 adopts finned heat exchanger, specific to the row of this finned heat exchanger, match with the thermic load of heating plant, described finned heat exchanger is connected with hot water line 15 with cold water pipe 14
Described induced air type smoke evacuation system comprises blower fan 8, exhaust fume collecting hood 17 and balanced flue 9, described exhaust fume collecting hood 17 is arranged on the top of described heat exchanger 16, described blower fan 8 is arranged on the inside of described exhaust fume collecting hood 17, described balanced flue 9 is provided with external air inlet mouth 19, described balanced flue 9 is connected with described blower fan 8, and flue gas enters balanced flue 9 through blower fan 8.Described blower fan 8 is forced-ventilated explosion-proof fan, and it is subnormal ambient with the middle hole that fuel segmentation supply system, combustion chamber 13, heat-exchange system form that air enters housing 18 by external air inlet mouth 19, and air stream is negative pressure before interior air inlet 20 arrives inspirator mixer 10.
The course of work of the full premix sectional combustion of negative-pressure ejecting formula of the present invention heating plant is:
As shown in Figure 2 and Figure 4, combustion gas enters distribution cavity 5 by Gas Pipe 7, by magnetic valve A1 and magnetic valve B2, control and enter corresponding inlet chamber 6 respectively, two groups of gas nozzles 4 are set on inlet chamber 6, magnetic valve A1 controls one group of gas nozzle 4, the number of this group gas nozzle 4 is 4, magnetic valve B2 controls another group gas nozzle, the number of this group gas nozzle 4 is 6, air is through the urceolus (being external air inlet mouth 19) of balanced flue 9, enter heating plant inside, then the interior air inlet 20 of flowing through, finally arrive the entrance of injection type mixing tube 10, now, air is in negative pressure state, combustion system of the present invention is premixed combustion, combustion gas and air mix before fire hole, burning does not need auxiliary air, the excess air coefficient of air is greater than 1, as shown in Figure 3, it is the static pressure that combustion gas utilizes self, through gas nozzle 4, spray, make combustion gas static pressure change dynamic pressure into, combustion gas obtains high-speed, combustion gas injection negative pressure air at a high speed enters inspirator mixer 10, in inspirator mixer 10, fully mix, mixed combustion gas and air mixture enter distributing pore plate 11, through the mixture of distributing pore plate 11, produce turbulent flow, enter orifice 12 and carry out combustion gas and Combustion of Premixed after further strengthening mixing, high-temperature combustion product in combustion chamber 13 and finned heat exchanger 16 carry out after heat exchange, low-temperature flue gas is drained in atmosphere through blower fan 8 and balanced flue 9 inner cores, finned heat exchanger 16 is connected with the confession, the backwater that enter (cold) water pipe 14 and go out (heat) water pipe 15 or heat supply pipeline, water completes after heat exchange intensification in finned heat exchanger 16, through the outlet pipe 15 of finned heat exchanger 16, supplies with user.
The present invention is a kind of gas heating device that utilizes the full premix sectional combustion of combustion gas mode to carry out supplying hot water and domestic hot-water, and this apparatus structure compactness makes full use of that combustion gas self-energy mixes, and has reduced the energy consumption of system.System adopts flat orifice and finned heat exchanger to match, and has reduced the cost cost of system.In addition, flat orifice can be processed into has certain cambered structure form, can prevent thermal stress deformation under hot conditions.The sectional combustion that structure of the present invention adopts is widened the adjustable extent of full premix greatly, has reduced the possibility of full premix combustion generation tempering under underload.The subnormal ambient design of entirety of the present invention, can not enter by external maintenance structure the product of gas heating device burning indoor, and this safe design has guaranteed the security that heating plant uses, and has reduced the harmfulness of flue gas to indoor environmental pollution.The present invention not only can, for business and civilian heat supply and domestic hot-water supply system, also can be used for middle-size and small-size industrial heating and hot-water supply system.
Although in conjunction with figure, invention has been described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; in the situation that not departing from aim of the present invention, can also make a lot of distortion, within these all belong to protection of the present invention.
Claims (5)
1. the full premix sectional combustion of a negative-pressure ejecting formula heating plant, comprises housing (18), fuel segmentation supply system, combustion chamber (13), heat-exchange system and induced air type smoke evacuation system, it is characterized in that:
Described fuel segmentation supply system comprises Gas Pipe (7) and coupled combustion gas distribution cavity (5), in described combustion gas distribution cavity (5), be also provided with magnetic valve A(1) and magnetic valve B(2), described magnetic valve A(1) and magnetic valve B(2) top an inlet chamber (6) is set respectively, the upper each one group of gas nozzle (4) that arranges of described inlet chamber (6), round the periphery of this group gas nozzle (4), be provided with the annular air scoop connecting with housing (18), the position aligning with each gas nozzle (4) is provided with an inspirator mixer (10) respectively, the top of described inspirator mixer (10) is provided with distributing pore plate (11) and orifice (12) from bottom to top, the bottom of described inspirator mixer (10) is provided with interior air inlet (20),
Described combustion chamber (13) is located at the top of described inspirator mixer (10);
Described heat-exchange system comprises the cold water pipe (14) and the hot-water line (15) that are connected with heat exchanger (16), and described heat exchanger (16) is arranged on the top of described combustion chamber (13), and described heat exchanger (16) adopts finned heat exchanger;
Described induced air type smoke evacuation system comprises blower fan (8), exhaust fume collecting hood (17) and balanced flue (9), described exhaust fume collecting hood (17) is arranged on the top of described heat exchanger (16), described blower fan (8) is arranged on the inside of described exhaust fume collecting hood (17), described balanced flue (9) is provided with external air inlet mouth (19), described balanced flue (9) is connected with described blower fan (8), and flue gas enters balanced flue (9) through blower fan (8).
2. the full premix sectional combustion of a kind of negative-pressure ejecting formula according to claim 1 heating plant, it is characterized in that, described blower fan (8) is forced-ventilated explosion-proof fan, it is subnormal ambient with the middle hole that fuel segmentation supply system, combustion chamber (13), heat-exchange system form that air enters housing (18) by external air inlet mouth (19), and it is negative pressure that air stream arrives inspirator mixer (10) front through interior air inlet (20).
3. the full premix sectional combustion of a kind of negative-pressure ejecting formula according to claim 1 heating plant, it is characterized in that, described combustion gas distribution cavity (5) is according to heating plant load of heat, by switch electromagnetic valve A(1) and magnetic valve B(2) segmentation control gas-flow is through the number of nozzle (4), and then control the region of orifice (12) fire hole burning.
4. the full premix sectional combustion of a kind of negative-pressure ejecting formula according to claim 1 heating plant, it is characterized in that, every group of gas nozzle (4) comprises multiple gas nozzles (4), the diameter of gas nozzle (4) is 1.2～2.5mm, the load of each gas nozzle (4) is 1～5kW, and the number of gas nozzle (4) depends on the rated heat input, rated heat load of heating plant.
5. the full premix sectional combustion of a kind of negative-pressure ejecting formula according to claim 1 heating plant, it is characterized in that, the needed air of the combustion gas that heating plant is all and fuel gas buring, all after inspirator mixer (10) mixes, the distributing pore plate of flowing through again (11) and orifice (12), the thermal intensity of fire port of orifice (12) is 5～25W/mm
2, the number of inspirator mixer (10) depends on the rated heat input, rated heat load of heating plant; Described orifice (12) is 6～18cm with heat exchanger bottom clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733714.9A CN103727653A (en) | 2013-12-23 | 2013-12-23 | Negative-pressure injection type full-premix sectional combustion heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733714.9A CN103727653A (en) | 2013-12-23 | 2013-12-23 | Negative-pressure injection type full-premix sectional combustion heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103727653A true CN103727653A (en) | 2014-04-16 |
Family
ID=50451842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310733714.9A Pending CN103727653A (en) | 2013-12-23 | 2013-12-23 | Negative-pressure injection type full-premix sectional combustion heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103727653A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953928A (en) * | 2014-05-06 | 2014-07-30 | 邓延鸿 | Energy-saving burner for premixed fuel gas to be burnt at positive pressure and steam generator |
| CN105444414A (en) * | 2015-12-21 | 2016-03-30 | 大连海事大学 | Injection type heat-pump gas water heater |
| CN106545845A (en) * | 2016-11-24 | 2017-03-29 | 珠海格力电器股份有限公司 | Air segmenting supply burner, method and burnt gas wall hanging furnace |
| CN113898948A (en) * | 2021-10-18 | 2022-01-07 | 东莞市艾瑞科热能设备有限公司 | Staged combustion balance control method for combustor, combustor and wall-hanging stove |
| WO2023130753A1 (en) * | 2022-01-05 | 2023-07-13 | 中冶长天国际工程有限责任公司 | Three-phase combined heat supply type low-carbon sintering equipment and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0217352A (en) * | 1988-07-04 | 1990-01-22 | Matsushita Electric Ind Co Ltd | Gas burning water heater with forced exhaust and air supply |
| CN2449122Y (en) * | 2000-10-25 | 2001-09-19 | 孙俊华 | Miniature water driven built-in strong-exhausting gas combustion water-heater |
| CN2702236Y (en) * | 2004-06-03 | 2005-05-25 | 海尔集团公司 | Firepower adjustable gas water heater |
| CN201954747U (en) * | 2011-01-30 | 2011-08-31 | 华北电力大学 | Smoke discharge pipeline of domestic gas water heating boiler |
| CN103196218A (en) * | 2013-04-18 | 2013-07-10 | 天津城市建设学院 | Positive-pressure-injecting type fully-premixed combustion heating device |
| CN203687332U (en) * | 2013-12-23 | 2014-07-02 | 天津城建大学 | Negative pressure injection full-premixing sectional burning heat supplying device |
-
2013
- 2013-12-23 CN CN201310733714.9A patent/CN103727653A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0217352A (en) * | 1988-07-04 | 1990-01-22 | Matsushita Electric Ind Co Ltd | Gas burning water heater with forced exhaust and air supply |
| CN2449122Y (en) * | 2000-10-25 | 2001-09-19 | 孙俊华 | Miniature water driven built-in strong-exhausting gas combustion water-heater |
| CN2702236Y (en) * | 2004-06-03 | 2005-05-25 | 海尔集团公司 | Firepower adjustable gas water heater |
| CN201954747U (en) * | 2011-01-30 | 2011-08-31 | 华北电力大学 | Smoke discharge pipeline of domestic gas water heating boiler |
| CN103196218A (en) * | 2013-04-18 | 2013-07-10 | 天津城市建设学院 | Positive-pressure-injecting type fully-premixed combustion heating device |
| CN203687332U (en) * | 2013-12-23 | 2014-07-02 | 天津城建大学 | Negative pressure injection full-premixing sectional burning heat supplying device |
Non-Patent Citations (1)
| Title |
|---|
| 段言,李卫明: "《家用热水器读本》", 31 August 2013, 国防工业出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953928A (en) * | 2014-05-06 | 2014-07-30 | 邓延鸿 | Energy-saving burner for premixed fuel gas to be burnt at positive pressure and steam generator |
| CN103953928B (en) * | 2014-05-06 | 2016-08-17 | 邓延鸿 | The energy-saving burner of a kind of pre-mixing gas combustion pressure combustion and steam generator |
| CN105444414A (en) * | 2015-12-21 | 2016-03-30 | 大连海事大学 | Injection type heat-pump gas water heater |
| CN105444414B (en) * | 2015-12-21 | 2018-04-17 | 大连海事大学 | Jet type heat pump gas heater |
| CN106545845A (en) * | 2016-11-24 | 2017-03-29 | 珠海格力电器股份有限公司 | Air segmenting supply burner, method and burnt gas wall hanging furnace |
| CN106545845B (en) * | 2016-11-24 | 2019-01-29 | 珠海格力电器股份有限公司 | Air segmenting supplies burner, method and burnt gas wall hanging furnace |
| CN113898948A (en) * | 2021-10-18 | 2022-01-07 | 东莞市艾瑞科热能设备有限公司 | Staged combustion balance control method for combustor, combustor and wall-hanging stove |
| CN113898948B (en) * | 2021-10-18 | 2023-05-30 | 东莞市艾瑞科热能设备有限公司 | Sectional combustion balance control method of burner, burner and wall-mounted furnace |
| WO2023130753A1 (en) * | 2022-01-05 | 2023-07-13 | 中冶长天国际工程有限责任公司 | Three-phase combined heat supply type low-carbon sintering equipment and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202253650U (en) | Adjustable-temperature gas burner | |
| CN202012913U (en) | Novel flue gas self-reflux low-oxygen combustor | |
| CN103727653A (en) | Negative-pressure injection type full-premix sectional combustion heating device | |
| WO2017084254A1 (en) | Continuous aluminium melting furnace of low-oxygen and high-temperature combustion with porous spray pipe heat exchanger | |
| CN203375450U (en) | Smoke backflow type high-heating-value gas heat storage burner | |
| CN105333449B (en) | Low-carbon type smoke backflow formula steam boiler low oxygen combustion system | |
| CN105222585A (en) | The combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas | |
| CN104566372A (en) | Water cooled fully-areated burner | |
| CN103196218B (en) | Malleation injection type full premix combustion heating plant | |
| CN204438118U (en) | The fully premixed burner of water-cooled | |
| CN203628653U (en) | Oxygen-enriched burner | |
| CN219433488U (en) | Hot-blast stove for pre-carbonization rotary kiln system | |
| CN203687332U (en) | Negative pressure injection full-premixing sectional burning heat supplying device | |
| CN203190603U (en) | Positive-pressure ejection type full premixed combustion heat supply device | |
| CN100578085C (en) | Multiple fire hole flame-free ceramic burner | |
| CN205782931U (en) | Spiral-flow type combustion furnace | |
| CN104089285A (en) | Multi-tube type gas spray gun | |
| CN204513465U (en) | A kind of head of combustion chamber structure strengthening cooling | |
| CN204100786U (en) | Tunnel-type kiln | |
| CN210079253U (en) | Low temperature flue gas SCR deNOx systems | |
| CN103196162B (en) | A kind of gas-cooker that can reclaim waste heat gas | |
| CN207797383U (en) | Boiler plant and heating system | |
| CN208536010U (en) | A kind of methylphenylamine heat-conducting oil furnace burning nitrogen removal system | |
| CN206670007U (en) | The gas heater of wake air during a kind of adjustable combustion | |
| CN205245170U (en) | Four -channel gas oxygen -enriched combustor in gas cupola furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |