CN108626753B - Sectional type full premix combustion stove - Google Patents
Sectional type full premix combustion stove Download PDFInfo
- Publication number
- CN108626753B CN108626753B CN201710162594.XA CN201710162594A CN108626753B CN 108626753 B CN108626753 B CN 108626753B CN 201710162594 A CN201710162594 A CN 201710162594A CN 108626753 B CN108626753 B CN 108626753B
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- Prior art keywords
- combustor
- gas
- mixed gas
- mixer
- valve
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 40
- 238000010411 cooking Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 80
- 239000002737 fuel gas Substances 0.000 claims description 20
- 230000006698 induction Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 18
- 230000033228 biological regulation Effects 0.000 abstract description 10
- 230000011218 segmentation Effects 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
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- 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
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- 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
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- 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
- F23D14/62—Mixing devices; Mixing tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
- Gas Burners (AREA)
Abstract
The utility model provides a sectional type full premix burning cooking utensils, relate to burning cooking utensils, including one-level combustor, the second grade combustor, the segmentation valve, blender and gas proportional valve, the intercommunication has second grade gas mixture passageway between second grade combustor and the blender, the segmentation valve setting between second grade combustor and blender and with second grade gas mixture passageway intercommunication, the intercommunication has one-level gas mixture passageway between one-level combustor and the blender, the blender is equipped with gas inlet and air inlet, the gas inlet is equipped with the gas pipeline, the entry and the gas pipeline intercommunication of gas proportional valve. This scheme provides a sectional type full premix burning cooking utensils, adopts full premix combustion system, has very big system regulation ratio, and the energy-saving rate is high, intelligent degree is high, the security is good, is applicable to commercial large-scale kitchen.
Description
Technical Field
The invention relates to a combustion cooker, in particular to a sectional type full-premixing combustion cooker.
Background
The combustion of the fuel gas needs air for combustion supporting, and the mixing ratio and the mixing degree of the fuel gas and the air determine the combustion degree of the fuel gas. When the mixing ratio of the air and the fuel gas is optimal, the fuel gas is combusted most fully, the combustion is most complete, the generated heat value is also highest, and the waste gas and the harmful gas generated after combustion are also least, so that the aims of high efficiency, energy conservation and environmental protection are fulfilled.
The premixing type gas combustion system fully mixes gas and air and then sends the gas and the air into the combustion chamber for combustion, has the characteristics of high combustion efficiency, low emission and the like, and is advanced gas combustion equipment.
The Chinese inventions with the authorization notice numbers of CN102853426A and CN102853457A respectively disclose a premixing type alloy fiber cooking range and a fully premixing intelligent cooking range, which are two typical fully premixing gas cookers. For commercial gas cookers, the maximum heat load is often required to be very high, and the aim of rapid cooking is achieved; the minimum heat load requirement is often very low to meet the smaller food processing requirement, so that the commercial gas cooker needs a larger system regulation ratio, and the two premixed gas cookers cannot reach the performance index.
Chinese utility model with the publication number CN201925922U discloses a high-power independently adjustable burner for a three-ring fire range, which can partially solve the problem of too small regulation ratio of the burner, however, this gas range adopts the traditional atmospheric combustion mode, and its single combustion section itself does not have the load regulation characteristic, therefore, the load regulation between its section and the section is step-type, the control mode is rough, in addition, this kind of range can only be applied to the home environment, and for a commercial large kitchen, its maximum load regulation range is still too narrow.
Disclosure of Invention
The invention aims to provide a sectional type full premix combustion stove which adopts a full premix combustion system, has a great system regulation ratio and is suitable for commercial large-scale canteens.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a sectional type full premix burning cooking utensils, including one-level combustor, the second grade combustor, the segmentation valve, blender and gas proportional valve, the intercommunication has second grade gas mixture passageway between second grade combustor and the blender, the segmentation valve setting between second grade combustor and blender and with second grade gas mixture passageway intercommunication, the intercommunication has one-level gas mixture passageway between one-level combustor and the blender, the blender is equipped with gas inlet and air inlet, the gas inlet is equipped with the gas pipeline, the entry and the gas pipeline intercommunication of gas proportional valve.
Through adopting above-mentioned technical scheme, the air input of gas can be controlled to the gas proportional valve to guarantee that air quantity and gas volume remain best mixture ratio all the time, make the gas can the abundant burning, improve the heat value of burning gas, reduce exhaust emission. The existing single-stage combustion mode is changed into a two-stage combustion mode, the first-stage combustor and the second-stage combustor are respectively and independently communicated with the mixer, and the second-stage combustor can be controlled through the sectional valve, so that the single-stage combustion mode or the two-stage combustion mode is selected, and the adjusting ratio of the premixed combustion system is effectively increased. For example, the adjustment ratio of the conventional premixed combustion system is 5, which means that if the maximum load is 5Q, the minimum load is Q within the adjustable range of the proportional valve; if a segmented combustion system is adopted, the most effective combustion area of the first segment is 1/2 of the full-load segment, and the minimum load of the first segment is 1/2Q, the maximum load of the first segment is 5/2Q and the maximum load of the full segment is still 5Q in the same proportional valve adjusting range, the adjusting ratio is 5Q/(1/2Q) = 10; the regulation ratio of the sectional type premixing combustion system is doubled compared with that of the traditional non-sectional type premixing system, which means that the minimum load of a traditional gas stove with the maximum load of 40kW is 8 kW, and the minimum load is 4kW after the novel sectional type structure is adopted, so that the system adaptability is greatly improved.
Preferably, the section valve adopts an electromagnetic switch valve, and the fuel gas proportional valve adopts an electromagnetic proportional valve.
By adopting the technical scheme, the electromagnetic switch valve is high in use safety, simple in structure and quick in action, and the solenoid switch valve is selected as the sectional valve to realize opening and closing actions, so that whether the secondary combustor needs to be connected or not is selected; the electromagnetic proportional valve can realize continuous control, and the valve port can be opened by any opening degree as required, so that the gas proportional valve can realize continuous regulation of gas flow by selecting the electromagnetic proportional valve.
Preferably, the first-stage combustor and the second-stage combustor are fixedly connected in a detachable mode, and the first-stage combustor and the second-stage combustor are isolated from each other.
Through adopting above-mentioned technical scheme, the one-level combustor can be dismantled fixedly with the second grade combustor, makes things convenient for dismouting, maintenance, also makes burning cooking utensils structure compacter simultaneously, and the gas mixture inlet channel between the two does not influence each other again.
Preferably, the primary mixture passage and the secondary mixture passage merge into a total mixture passage near the mixer.
Through adopting above-mentioned technical scheme, the gas mixture of gas and air at first passes through total gas mixture passageway when coming out from the gas mixture export, and the reentrant one-level gas mixture passageway or second grade gas mixture passageway respectively avoid two tube coupling of one-level gas mixture passageway and second grade gas mixture passageway to the blender, simplified the pipeline setting.
Preferably, the air inlet of the mixer is provided with a direct current fan, and a direct current brushless motor is adopted.
Through adopting above-mentioned technical scheme, direct current fan is efficient, the speed governing nature is good, control is simple, sets up direct current fan at the air entrance of blender, and its effect sweeps the air before burning cooking utensils are igniteed, blows off the combustible gas in the cooking utensils, prevents the deflagration, improves the security that sectional type mixes burning cooking utensils in advance.
Preferably, the primary combustor is provided with an ignition needle and an igniter, and the ignition needle is connected with the igniter.
Through adopting above-mentioned technical scheme, with some firearm and ignition needle setting on one-level combustor, so both can the single control use one-level combustor, can control simultaneously again and use one-level combustor and second grade combustor to make the major system turn-down ratio utilize.
Preferably, a flame induction needle is arranged at the joint of the main mixed gas channel, which is close to the primary mixed gas channel, and the secondary mixed gas channel.
Through adopting above-mentioned technical scheme, the induced-current that produces when flame response needle mainly relies on the burning makes the judgement, and this electric current can change along with the change of burning flame, consequently sets up flame response needle on total mixed gas way, and flame response needle spanes the two-stage, both can sense the condition of one-level combustor, can sense the condition of second grade combustor again.
Preferably, the ignition device further comprises a controller, an ignition signal input end of the igniter is connected with an ignition signal output end of the controller, a flame sensing signal output end of the flame sensing needle is connected with a flame sensing signal input end of the controller, a fan signal input end of the direct current fan is connected with a fan signal output end of the controller, and a fuel gas signal input end of the fuel gas proportional valve is connected with a fuel gas signal output end of the controller.
By adopting the technical scheme, the controller is adopted to control the operation of the combustion cooker, so that the purposes of intellectualization and safety are achieved.
Preferably, the controller adopts a PLC control system or a single chip microcomputer control system and is connected with a fire switching interface.
By adopting the technical scheme, the PLC or the single chip microcomputer automatic control system can meet the automatic control requirement on the combustion cooker, and the firepower switching interface can switch firepower according to the requirement, so that the energy waste is avoided.
In conclusion, the sectional type full-premix combustion stove adopts the full-premix combustion system, has the advantages of great system regulation ratio, high energy saving rate, high intelligent degree and good safety, and is suitable for large commercial kitchens.
Drawings
FIG. 1 is a structural layout diagram of a sectional type fully premixed combustion cooker;
fig. 2 is a schematic connection diagram of the controller.
Reference numerals: 1. a primary combustor; 2. a secondary combustor; 3. a segment valve; 4. a mixer; 4a, a gas inlet; 4b, an air inlet; 5. a gas proportional valve; 6. a first-stage mixed gas channel; 7. a secondary mixed gas channel; 8. a gas pipeline; 9. a total mixed gas channel; 10. a direct current fan; 11. an ignition needle; 12. an igniter; 13. a flame sensing needle; 14. and a controller.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a sectional type full premix combustion stove comprises a primary combustor 1, a secondary combustor 2, a sectional valve 3, a mixer 4 and a gas proportional valve 5. The section valve 3 adopts an electromagnetic switch valve, and the gas proportional valve 5 adopts an electromagnetic proportional valve. First-order combustor 1 and second grade combustor 2 realize dismantling mode fixed connection through setting up the screw thread, and first-order combustor 1 and second grade combustor 2 isolated each other not communicate.
A second-stage mixed gas channel 7 is communicated between the second-stage combustor 2 and the mixer 4, the segmenting valve 3 is arranged between the second-stage combustor 2 and the mixer 4 and communicated with the second-stage mixed gas channel 7, a first-stage mixed gas channel 6 is communicated between the first-stage combustor 1 and the mixer 4, and the first-stage mixed gas channel 6 and the second-stage mixed gas channel 7 are combined into a total mixed gas channel 9 at a position close to the mixer 4.
The mixer 4 is provided with a gas inlet 4a and an air inlet 4b, the gas inlet 4a is provided with a gas pipeline 8, and the inlet of the gas proportional valve 5 is communicated with the gas pipeline 8. The air inlet 4b of the mixer 4 is provided with a dc fan 10 and employs a dc brushless motor.
The primary combustor 1 is provided with an ignition needle 11 and an igniter 12, and the ignition needle 11 is connected with the igniter 12. The main mixed gas channel 9 is provided with a flame induction needle 13 near the joint of the first mixed gas channel 6 and the second mixed gas channel 7.
As shown in fig. 2, the fire power control system further comprises a controller 14, wherein the controller 14 adopts a PLC control system and is connected with a fire power switching interface. An ignition signal input end of the igniter 12 is connected with an ignition signal output end of the controller 14, a flame sensing signal output end of the flame sensing needle 13 is connected with a flame sensing signal input end of the controller 14, a fan signal input end of the direct current fan 10 is connected with a fan signal output end of the controller 14, and a fuel gas signal input end of the fuel gas proportional valve 5 is connected with a fuel gas signal output end of the controller 14.
The working principle of the sectional type full premix combustion cooker is as follows:
when a PLC control system of a controller 14 senses that a user has a useful ignition demand, firstly judging a firepower range x required by the user, then starting a direct current fan 10 and giving a lower fan rotating speed R0, successfully starting an ignition system, namely an igniter 12 and an ignition needle 11, starting a gas proportional valve 5 and giving a fixed opening degree (corresponding to a current I0 of the gas proportional valve 5) to ensure successful ignition, judging whether the ignition Is successful or not after a flame sensing needle 13 senses the ignition current, judging whether a sectional valve 3 needs to be opened or not according to the x value if the ignition Is successful, regulating the current value of the gas proportional valve 5 and the rotating speed of the direct current fan 10 to a set range if the sectional valve 3 does not need to be opened according to the x value, ensuring that a primary combustor 1 stably burns and the ignition Is finished, and regulating the current value of the gas proportional valve 5 and the rotating speed of the direct current fan 10 to ignition values Is and Rs if the sectional valve 3 needs to be opened, and simultaneously giving a fixed voltage to the sectional valve 3 to keep an opened state so as to ensure that flame Is stably transmitted to a secondary combustor 2, and then regulating the current value of the gas proportional valve 5 and the rotating speed of the.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (6)
1. A sectional type full premix burning cooking utensils which characterized in that: the fuel gas mixing device comprises a primary combustor (1), a secondary combustor (2), a sectional valve (3), a mixer (4) and a fuel gas proportional valve (5), wherein a secondary mixed gas channel (7) is communicated between the secondary combustor (2) and the mixer (4), the sectional valve (3) is arranged between the secondary combustor (2) and the mixer (4) and communicated with the secondary mixed gas channel (7), a primary mixed gas channel (6) is communicated between the primary combustor (1) and the mixer (4), the mixer (4) is provided with a fuel gas inlet (4 a) and an air inlet (4 b), the fuel gas inlet (4 a) is provided with a fuel gas pipeline (8), an inlet of the fuel gas proportional valve (5) is communicated with the fuel gas pipeline (8), the sectional valve (3) adopts an electromagnetic switch valve, and the fuel gas proportional valve (5) adopts an electromagnetic proportional valve; the primary combustor (1) and the secondary combustor (2) are fixedly connected in a detachable mode, and the primary combustor (1) and the secondary combustor (2) are isolated from each other; the first-stage mixed gas channel (6) and the second-stage mixed gas channel (7) are combined into a total mixed gas channel (9) at a position close to the mixer (4).
2. The segmented fully premixed combustion hob according to claim 1, characterized in that: and a direct current fan (10) is arranged at an air inlet (4 b) of the mixer (4), and a direct current brushless motor is adopted.
3. The segmented fully premixed combustion hob according to claim 2, characterized in that: an ignition needle (11) and an igniter (12) are arranged on the primary combustor (1), and the ignition needle (11) is connected with the igniter (12).
4. A segmented fully premixed combustion hob according to claim 3, characterized in that: and a flame induction needle (13) is arranged at the joint of the main mixed gas channel (9), which is close to the primary mixed gas channel (6) and the secondary mixed gas channel (7).
5. The segmented fully premixed combustion hob according to claim 4, characterized in that: the ignition device is characterized by further comprising a controller (14), an ignition signal input end of the igniter (12) is connected with an ignition signal output end of the controller (14), a flame sensing signal output end of the flame sensing needle (13) is connected with a flame sensing signal input end of the controller (14), a fan signal input end of the direct current fan (10) is connected with a fan signal output end of the controller (14), and a gas signal input end of the gas proportional valve (5) is connected with a gas signal output end of the controller (14).
6. The segmented fully premixed combustion hob according to claim 5, characterized in that: the controller (14) adopts a PLC control system or a single chip microcomputer control system and is connected with a firepower switching interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710162594.XA CN108626753B (en) | 2017-03-18 | 2017-03-18 | Sectional type full premix combustion stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710162594.XA CN108626753B (en) | 2017-03-18 | 2017-03-18 | Sectional type full premix combustion stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108626753A CN108626753A (en) | 2018-10-09 |
| CN108626753B true CN108626753B (en) | 2020-01-10 |
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ID=63686527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710162594.XA Expired - Fee Related CN108626753B (en) | 2017-03-18 | 2017-03-18 | Sectional type full premix combustion stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108626753B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5816235A (en) * | 1996-06-25 | 1998-10-06 | Tony Yang Magic Corporation | Infrared gas burner for gas cookers |
| CN2773498Y (en) * | 2005-02-05 | 2006-04-19 | 王永涛 | Premixed rotary energy-saving cooker for Chinese food |
| CN101776262B (en) * | 2009-12-30 | 2012-12-05 | 伍镜清 | Energy-saving method and device for gas combustion |
| CN201672561U (en) * | 2010-05-17 | 2010-12-15 | 周加红 | Domestic energy-saving strong-fire fuel-gas cooking range with premixing function |
| CN202328399U (en) * | 2011-11-12 | 2012-07-11 | 陈立德 | Safe energy-saving gas stove |
| KR101623633B1 (en) * | 2014-01-29 | 2016-05-23 | 엘지전자 주식회사 | Cooking appliance |
| CN205842649U (en) * | 2016-06-30 | 2016-12-28 | 深圳市爱可机器人技术有限公司 | All-premixing burner and include its cooking device |
-
2017
- 2017-03-18 CN CN201710162594.XA patent/CN108626753B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN108626753A (en) | 2018-10-09 |
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