CN103900122B - The actively control method of air intake gas-cooker - Google Patents

The actively control method of air intake gas-cooker Download PDF

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Publication number
CN103900122B
CN103900122B CN201410080504.9A CN201410080504A CN103900122B CN 103900122 B CN103900122 B CN 103900122B CN 201410080504 A CN201410080504 A CN 201410080504A CN 103900122 B CN103900122 B CN 103900122B
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blower fan
cooker
controller
gas
proportioning valve
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CN103900122A (en
Inventor
陈迪龙
徐德明
茅忠群
诸永定
郑军妹
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Abstract

The present invention relates to the control method of a kind of active air intake gas-cooker, described active air intake gas-cooker includes burner (10), blower fan (2) and Gas Pipe (9), controller (101) and be controlled by proportioning valve (8) and the blower fan of aforementioned controllers (101), it is characterized in that: aforesaid controller (101) has or is connected to peripheral operation portion (102), the opening degree of proportioning valve (8) corresponding under different firepower level condition and the default list of the rotating speed of blower fan (2) it is provided with in controller (101), controller (101) can when the firepower grade that outside operating portion (102) input needs, inquire about this default list, and export control signal respectively according to Query Result to described proportioning valve (8) and described blower fan (2), control the opening degree that described proportioning valve (8) makes the opening degree of described proportioning valve (8) be the proportioning valve (8) corresponding with this firepower grade, control the rotating speed that described blower fan (2) makes the rotating speed of described blower fan (2) be the blower fan (2) corresponding with this firepower grade.Control method provided by the invention can make gas-cooker be under different firepower grade combustion gas all fully to burn.

Description

The actively control method of air intake gas-cooker
Technical field
The present invention relates to the control method of a kind of active air intake gas-cooker.
Background technology
Existing household gas range is adopt nature injection primary air, the structure that combustion gas mixes naturally with air mostly, and this structure gas is difficult to control to air mixture ratio and mixing uniformity, finally affects the efficiency of combustion of gas-cooker.
Also there is the employing blower fan structure to the direct air blast of burner, when adjustment of combustion gas flow, primary air amount does not increase in proportion with gas quantity simultaneously or reduces, produce air capacity not enough or superfluous, imperfect combustion when there is air capacity deficiency is caused to generate more CO, or the flue gas after burning has excessive air to take away heat energy, therefore also can reduce the thermal efficiency of gas-cooker.
For overcoming these defects above-mentioned, gas-cooker is improved.Propose the technical scheme that a large amount of auxiliary air fills into, such as the Chinese invention patent " burner for gas stove " (Authorization Notice No. is CN101162088B) that the patent No. is ZL200710188684.2;The patent No. is the Chinese utility model patent " burner for gas stove " (Authorization Notice No. is CN201448848U) of 200920061965.6;Application number is the Chinese invention patent application open " upper air inlet burner of gas cooker " (application publication number CN102661606A) etc. of 201210170857.9.
For further up to the mixed proportion accurately controlling combustion gas and air, propose a lot of technical scheme to be improved, such as the Chinese invention patent application open " electrically-controlled scaling adjusted gas-cooker " (application publication number is CN101886820A) that application number is 200910039462.3;Application number is the Chinese invention patent application open " household gas range " (application publication number is CN103292325A) etc. of 201310264505.4.
Due in prior art when controlling combustion gas and air mixture ratio, only filling into of primary air is controlled, it is also carried out effective control without filling into of auxiliary air of contrast, and whether the burning of combustion gas is abundant, fill into and the filling into of auxiliary air of primary air are all there is particularly important association, ignore wherein, and its efficiency of combustion cannot perform to optimum state.
Summary of the invention
The technical problem to be solved is the control method providing a kind of active air intake gas-cooker with high burning efficiency for above-mentioned prior art, and this control method can make gas-cooker be under different firepower grade combustion gas all fully to burn.
This invention address that the technical scheme that above-mentioned technical problem adopts is: the control method of a kind of active air intake gas-cooker, described active air intake gas-cooker includes burner, blower fan and Gas Pipe, this burner lower end has induction tunnel, upper end has multiple fire output hole, aforesaid blower fan for actively filling into air to burner, the corresponding aforesaid induction tunnel of aforesaid Gas Pipe arranges and is provided that combustion gas, it is characterized in that: described active air intake gas-cooker also includes controller and is controlled by the proportioning valve of aforementioned controllers, this proportioning valve is located in Gas Pipe, the upper end of described burner also has multiple auxiliary air venthole arranged near aforementioned fire output hole, the outlet side of described blower fan communicates with the air inlet port of induction tunnel and aforementioned auxiliary air venthole respectively, and, described blower fan is controlled by aforesaid controller, aforesaid controller has or is connected to peripheral operation portion, the opening degree of proportioning valve corresponding under different firepower level condition and the default list of the rotating speed of blower fan it is provided with in controller, controller can when the firepower grade that outside operating portion input needs, inquire about this default list, and export control signal respectively according to Query Result to described proportioning valve and described blower fan, control the opening degree that described proportioning valve makes the opening degree of described proportioning valve be the proportioning valve corresponding with this firepower grade, control the rotating speed that described blower fan makes the rotating speed of described blower fan be the blower fan corresponding with this firepower grade.
Preferably, described peripheral operation portion is for touching display screen, and described firepower grade freely regulates between gas-cooker peak power and minimum power.
As improvement, described blower fan is connected with described controller, and described controller can be given by the speed feedback of blower fan in real time, when gas-cooker is operated under a certain firepower grade under outside operating portion input, prolongation along with the working time, if the rotating speed feeding back to the blower fan of described controller is not equal to the rotating speed of the blower fan corresponding with this firepower grade, then controller constantly exports control signal repeatedly to described blower fan, controlling described blower fan makes the rotating speed of described blower fan constantly approach the rotating speed of the blower fan corresponding with this firepower grade, until reaching the rotating speed of the corresponding blower fan of this firepower grade.
Improve again, active air intake gas-cooker in the present invention also includes the lighter being connected with described controller, flame detection unit, alarm and electromagnetic valve, flame detection unit is corresponding with described fire output hole, when after the igniter fire of gas-cooker, flame has been detected whether by flame detection unit, if any, lighter quits work, such as nothing, controller drive ignition device again is lighted a fire 1~3 time, if flame detection unit can't detect flare up fire always, flame abnormal alarm signal is reported to the police by described controller by alarm, the control signal of controller output simultaneously closes described proportioning valve and described blower fan, and export the electromagnetic valve of control signal closedown gas-cooker.
Improve again; described active air intake gas-cooker also includes the temperature relay for detection gas-cooker carries out overtemperature protection; this temperature relay is connected with described controller; when controller detects temperature relay abnormal operation, overheating fault alarm signal is reported to the police by alarm; the control signal of controller output simultaneously closes described proportioning valve and described blower fan, and exports the electromagnetic valve of control signal closedown gas-cooker.
Improve again, when gas-cooker is in duty, when controller can't detect the rotating speed of blower fan feedback in Preset Time, it is judged that blower fan is abnormal, and blower fan abnormal signal is reported to the police by alarm, the control signal of controller output simultaneously closes described proportioning valve and electromagnetic valve.
Improve again, when gas-cooker is in duty, and after receiving the work timing signal of peripheral operation portion input, controller is timed, by described alarm, the prompting that expires in 30 seconds~60 seconds before the work timing time expires, when the work timing time to after date, controller output control signal closes described proportioning valve and described blower fan, and exports the electromagnetic valve of control signal closedown gas-cooker.
Compared with prior art, it is an advantage of the current invention that: use control method provided by the invention, can make under the active air intake gas-cooker firepower grade wanted of what is the need in office according to predetermined list, control the opening degree that described proportioning valve makes the opening degree of described proportioning valve be the proportioning valve corresponding with this firepower grade, control the rotating speed that described blower fan makes the rotating speed of described blower fan be the blower fan corresponding with this firepower grade, thus ensureing that combustion gas can all fully can burnt under the firepower grade of any needs.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of actively air intake gas-cooker in the embodiment of the present invention
Fig. 2 is the schematic diagram (after removing panel) of actively air intake gas-cooker in the embodiment of the present invention.
Fig. 3 is part-structure enlarged diagram in Fig. 2.
Fig. 4 is the front schematic view of base in Fig. 3.
Fig. 5 is the exploded of Fig. 3.
Fig. 6 is the exploded at another visual angle of Fig. 3.
Fig. 7 is the Facad structure schematic diagram of Fig. 3.
Fig. 8 is the sectional view in Fig. 7 along A-A direction.
Fig. 9 is the control principle drawing of actively air intake gas-cooker in the embodiment of the present invention.
Figure 10 is the control flow chart of actively air intake gas-cooker in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As depicted in figs. 1 and 2, gas-cooker in the present embodiment includes housing 100, burner 10, blower fan 2, Gas Pipe 9, case 1, gas joint 3, proportioning valve 8 and controller 101, housing 100 is internally formed cavity and arranges for burner 10, blower fan 2, Gas Pipe 9, case 1, proportioning valve 8 and controller 101, the upper port of housing 100 is provided with panel 103, panel is provided with the touch display screen 102 as peripheral operation portion, touches display screen 102 and be connected with controller 101.Burner 10 in the present embodiment, blower fan 2, Gas Pipe 9, case 1, gas joint 3 and proportioning valve 8 are each a set of around.Blower fan 2 and proportioning valve 8 are controlled by controller 101, and controller 101 is connected to alarm 104 and electromagnetic valve 105.Referring to Fig. 9.Alarm 104 can be separately provided, and as being arranged to buzzer, can also be displayed by touching display screen 102 by different alarm codes simultaneously.
Shown in Fig. 3, Fig. 5 and Fig. 6, burner 10 lower end has induction tunnel, upper end has multiple fire output hole and multiple auxiliary air venthole arranged near fire output hole, fire output hole side is provided with lighter 106 and flame detection unit (not shown), the corresponding induction tunnel of Gas Pipe 9 arranges and is provided that combustion gas, case 1 is located at the lower section of burner 10 and covers the lower end of burner 10, the inner chamber of this case 1 and auxiliary air venthole configured in fluid communication
Blower fan 2 is located at case 1 side and can introduce air under power on condition in case 1, and specifically, blower fan 2 can carry to be fixed by the port sealing of rivet Yu case 1 side.The outlet side of blower fan 2 communicates with the air inlet port of induction tunnel and auxiliary air venthole respectively.Proportioning valve 8 is located in Gas Pipe 9.
Gas joint 3 is located at the other side of case 1 and is tightly connected with case 1, and gas joint 3 outer end is connected with Gas Pipe, can combustion gas be introduced in the induction tunnel of burner 10.
Burner 10 includes base 7, outer fire cover 5, inner fire cover 4 and air and fills into ring 6.Shown in Fig. 4, base 7 lower end has an interior induction tunnel 73 and two outer induction tunnels 74, upper end is formed with the interior gaseous mixture venthole 76 communicated with interior induction tunnel 73 and the outer gaseous mixture venthole 75 communicated with outer induction tunnel, further, this base 7 from being further opened with outside to inside, outer auxiliary air fills into hole 71, outer shroud air fills into hole 72 and center air fills into hole 77;Accordingly, gas joint 3 has the first airway 32 docked with interior induction tunnel and the second airway 31 docked with outer induction tunnel.
Shown in Fig. 4, air fills into ring 6 and is located at the upper surface of base 7, ring 61, annular connecting portion 6a, outer portion 62, interior connecting portion 6b and central part 63 is filled into from including outer auxiliary air outside to inside successively, outer auxiliary air fills into and offers outer auxiliary air venthole 64 on ring 61, annular connecting portion 6a offers outer vent 67, outer portion 62 offers first group of air venthole 65, interior connecting portion 6b offers interior passage 6d, central part 63 offers second group of air venthole 66.
Outer fire cover 5 is located on annular connecting portion 6a and the outer fire output hole 51 of circumferencial direction, inner fire cover 4 is located on interior connecting portion 6b, medial wall offers inner ring fire output hole 42 and lateral wall offers outer ring fire output hole 41, the corresponding outer fire output hole 51 of outer auxiliary air venthole 64 is arranged, first group of air venthole 65 corresponding outer ring fire output hole 41 is arranged, second group of corresponding inner ring fire output hole 42 of air venthole 66 is arranged.
As shown in Figure 7 and Figure 8, outer fire output hole 51 is tilted towards outer layout and forms horn-like, outer auxiliary air fills into the stopper 69 forming the outgassing direction just externally fire output hole that can make auxiliary air on ring 61, this stopper is positioned at the outlet side of outer auxiliary air venthole 64, outer portion 62 and central part 63 also are provided with stopper 69, stopper 69 can make gas mixing fully, furthermore it is ensured that discharge does not block 64, first group of air venthole 65 of outer auxiliary air venthole and second group of air venthole 66.
During burner operation, blower fan 2 works, introduce air in case 1, portion of air fills into as primary air and respectively enters outer induction tunnel 74 and interior induction tunnel 73 with combustion gas mixing, another part air divides three roads to fill into as auxiliary air, respectively from outer auxiliary air venthole 64, first group of air venthole 65, second group of air venthole 66 is sent, the mixing gas entering outer induction tunnel 74 and interior induction tunnel 73 is sent from the outer ring fire output hole 41 of the outer fire output hole 51 of outer fire cover 5 and inner fire cover 4 and inner ring fire output hole 42 respectively, the last three circle fire rings formed in burner 10 from inside to outside burn, all draw from case 1 due to primary air and auxiliary air, and the air in case 1 is blower fan 2 brute force sucks in, therefore fuel gas buring is very abundant, additionally at this moment the air in case 1 will the heat that produces of burned device to preheating, the heat that burner 10 produces is recycled by preheating of air two in case, the efficiency of combustion of combustion gas is improved further while reducing heat radiation and thermal convection current.
During burning, air is all that blower fan fills into below burner, quite sufficient, and usage ratio valve controls the watt level during kitchen range use, and flow curve is smooth, and user's experience is greatly improved;The required in combustion primary air of burner, auxiliary air are supplied by blower fan by optimum proportioning according to the difference of nozzle flow, and the required primary air of burning, auxiliary air are all after preheating;So can effectively improve efficiency of combustion (reaching more than 65%), reduce the discharge (within 250ppm) of waste gas, thus the discharge of improving combustion efficiency, reduction waste gas.Need not supplementing the air in air in combustion as auxiliary air, so can be substantially reduced the height of pan bracket, the development prospect that can make embedded gas range is more wide.
In conjunction with shown in Fig. 9 and Figure 10, the control output end of controller 101 is connected with the control input controlling input and proportioning valve 8 of blower fan 2 respectively.The opening degree of proportioning valve 8 corresponding under different firepower level condition and the default list of the rotating speed of blower fan 2 it is provided with in controller 101, controller 101 can when the firepower grade that outside operating portion 102 input needs, inquire about this default list, and export control signal respectively according to Query Result to described proportioning valve 8 and described blower fan 2, control the opening degree that described proportioning valve 8 makes the opening degree of described proportioning valve 8 be the proportioning valve 8 corresponding with this firepower grade, control the rotating speed that described blower fan 2 makes the rotating speed of described blower fan 2 be the blower fan 2 corresponding with this firepower grade, the opening degree size of proportioning valve is used for controlling the size of combustion gas specific discharge, the size of rotation speed of fan is used for controlling the amount that air fills into, both optimum proportioning are realized by controlling the opening degree of rotation speed of fan and proportioning valve, make fuel gas buring more abundant.Preset the ginseng firepower grade of list and the rotating speed of the opening degree of the proportioning valve 8 corresponding with this firepower grade and blower fan 2, be carry out best pairing setting according to concrete gas-cooker attribute.
In the present embodiment, described firepower grade freely can regulate between gas-cooker peak power and minimum power, therefore user has only to touching slip on display screen 102 with have gentle hands pine, numeral according to display, can conveniently find the firepower grade oneself needed, then controller can control the opening degree of proportioning valve 8 and the rotating speed of blower fan 2, makes gas stove energy under any one firepower grade, makes combustion gas fully burn.
Additionally, in the present embodiment, the rotating speed of blower fan 2 can also give described controller 101 by Real-time Feedback, when gas-cooker is operated under a certain firepower grade under outside operating portion 102 input, prolongation along with the working time, if running into fire output hole blocking, or supply voltage changes, the rotating speed feeding back to the blower fan 2 of described controller 101 is not equal to the rotating speed of the blower fan 2 corresponding with this firepower grade, then controller 101 constantly exports control signal repeatedly to described blower fan 2, controlling described blower fan 2 makes the rotating speed of described blower fan 2 constantly approach the rotating speed of the blower fan 2 corresponding with this firepower grade, until reaching the rotating speed of the corresponding blower fan of this firepower grade 2.
The present embodiment Flame detection unit is corresponding with described fire output hole, when after the igniter fire of gas-cooker, flame has been detected whether by flame detection unit, if any, lighter quits work, such as nothing, controller 101 drive ignition device again is lighted a fire 3 times, if flame detection unit can't detect flare up fire always, flame abnormal alarm signal is reported to the police by described controller 101 by alarm, controller 101 exports control signal and cuts out described proportioning valve 8 and described blower fan 2 simultaneously, and exports the electromagnetic valve of control signal closedown gas-cooker.
Additionally; active air intake gas-cooker in the present embodiment also includes the temperature relay 106 for detection gas-cooker carries out overtemperature protection; this temperature relay 106 is also connected with described controller 101; when controller 101 detects temperature relay abnormal operation, overheating fault alarm signal is reported to the police by alarm; controller 101 exports control signal and cuts out described proportioning valve 8 and described blower fan 2 simultaneously, and exports the electromagnetic valve of control signal closedown gas-cooker.
In addition, when gas-cooker is in duty, when controller 101 can't detect the rotating speed of blower fan 2 feedback in Preset Time, it is judged that blower fan is abnormal, and blower fan abnormal signal is reported to the police by alarm, controller 101 exports control signal and cuts out described proportioning valve 8 and electromagnetic valve 105 simultaneously.
When gas-cooker is in duty, and after receiving the work timing signal of peripheral operation portion 102 input, controller 101 is timed, by described alarm, the prompting that expires in 30 seconds~60 seconds before the work timing time expires, when the work timing time to after date, controller 101 exports control signal and cuts out described proportioning valve 8 and described blower fan 2, and exports the electromagnetic valve of control signal closedown gas-cooker.

Claims (7)

1. the control method of an active air intake gas-cooker, described active air intake gas-cooker includes burner (10), blower fan (2) and Gas Pipe (9), this burner (10) lower end has induction tunnel, upper end has multiple fire output hole, aforesaid blower fan (2) is for actively filling into air to burner (10), the corresponding aforesaid induction tunnel of aforesaid Gas Pipe (9) arranges and is provided that combustion gas, it is characterized in that: described active air intake gas-cooker also includes controller (101) and is controlled by the proportioning valve (8) of aforementioned controllers (101), this proportioning valve (8) is located in Gas Pipe (9), the upper end of described burner (10) also has multiple auxiliary air venthole arranged near aforementioned fire output hole, the outlet side of described blower fan (2) communicates with the air inlet port of induction tunnel and aforementioned auxiliary air venthole respectively, and, described blower fan (2) is controlled by aforesaid controller (101), aforesaid controller (101) has or is connected to peripheral operation portion (102), the opening degree of proportioning valve (8) corresponding under different firepower level condition and the default list of the rotating speed of blower fan (2) it is provided with in controller (101), controller (101) can when the firepower grade that outside operating portion (102) input needs, inquire about this default list, and export control signal respectively according to Query Result to described proportioning valve (8) and described blower fan (2), control the opening degree that described proportioning valve (8) makes the opening degree of described proportioning valve (8) be the proportioning valve (8) corresponding with this firepower grade, control the rotating speed that described blower fan (2) makes the rotating speed of described blower fan (2) be the blower fan (2) corresponding with this firepower grade.
2. the control method of active air intake gas-cooker according to claim 1, it is characterised in that: described peripheral operation portion (102) is for touching display screen, and described firepower grade freely regulates between gas-cooker peak power and minimum power.
3. the control method of active air intake gas-cooker according to claim 1, it is characterized in that: described blower fan (2) is connected with described controller (101), and described controller (101) can be given by the speed feedback of blower fan (2) in real time, when gas-cooker is operated under a certain firepower grade under outside operating portion (102) input, prolongation along with the working time, if the rotating speed feeding back to the blower fan (2) of described controller (101) is not equal to the rotating speed of the blower fan (2) corresponding with this firepower grade, then controller (101) constantly exports control signal repeatedly to described blower fan (2), controlling described blower fan (2) makes the rotating speed of described blower fan (2) constantly approach the rotating speed of the blower fan (2) corresponding with this firepower grade, until reaching the rotating speed of the corresponding blower fan of this firepower grade (2).
4. the control method of active air intake gas-cooker according to claim 3, it is characterized in that: described active air intake gas-cooker also includes the lighter being connected with described controller (101), flame detection unit, alarm and electromagnetic valve, flame detection unit is corresponding with described fire output hole, when after the igniter fire of gas-cooker, flame has been detected whether by flame detection unit, if any, lighter quits work, such as nothing, controller (101) drive ignition device again is lighted a fire 1~3 time, if flame detection unit can't detect flare up fire always, flame abnormal alarm signal is reported to the police by described controller (101) by alarm, the control signal of controller (101) output simultaneously closes described proportioning valve (8) and described blower fan (2), and export the electromagnetic valve of control signal closedown gas-cooker.
5. the control method of active air intake gas-cooker according to claim 4, it is characterized in that: described active air intake gas-cooker also includes the temperature relay for detection gas-cooker carries out overtemperature protection, this temperature relay is connected with described controller (101), when controller (101) detects temperature relay abnormal operation, overheating fault alarm signal is reported to the police by alarm, the control signal of controller (101) output simultaneously closes described proportioning valve (8) and described blower fan (2), and export the electromagnetic valve of control signal closedown gas-cooker.
6. the control method of active air intake gas-cooker according to claim 4, it is characterized in that: when gas-cooker is in duty, when controller (101) can't detect the rotating speed that blower fan (2) feeds back in Preset Time, judge that blower fan is abnormal, and blower fan abnormal signal is reported to the police by alarm, the control signal of controller (101) output simultaneously closes described proportioning valve (8) and electromagnetic valve.
7. the control method of active air intake gas-cooker according to claim 4, it is characterized in that: when gas-cooker is in duty, and after receiving the work timing signal that peripheral operation portion (102) inputs, controller (101) is timed, by described alarm, the prompting that expires in 30 seconds~60 seconds before the work timing time expires, when the work timing time to after date, controller (101) output control signal closes described proportioning valve (8) and described blower fan (2), and exports the electromagnetic valve of control signal closedown gas-cooker.
CN201410080504.9A 2014-03-06 2014-03-06 The actively control method of air intake gas-cooker Active CN103900122B (en)

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CN108151075A (en) * 2017-12-21 2018-06-12 珠海智星荟科技服务有限公司 A kind of novel energy-saving environment-friendly cooker

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CN102809158A (en) * 2012-05-12 2012-12-05 何梅顺 Air suction device
CN103438454A (en) * 2013-07-25 2013-12-11 宁波方太厨具有限公司 Household gas stove burner
CN103512054A (en) * 2013-01-10 2014-01-15 杨斌 Full pre-mixing injection control device of blast gas oven

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101398190A (en) * 2007-09-29 2009-04-01 广东万和集团有限公司 Efficiency energy saving gas range
CN101469871A (en) * 2007-12-27 2009-07-01 广东万和集团有限公司 Gas and air fixed proportion control valve of gas kitchen range
CN101839503A (en) * 2009-03-18 2010-09-22 广东万和新电气股份有限公司 Fixed-proportion regulated gas stove
KR101133776B1 (en) * 2010-05-03 2012-04-09 김태봉 Gas range for business and fire control method thereof
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CN102809158A (en) * 2012-05-12 2012-12-05 何梅顺 Air suction device
CN103512054A (en) * 2013-01-10 2014-01-15 杨斌 Full pre-mixing injection control device of blast gas oven
CN103438454A (en) * 2013-07-25 2013-12-11 宁波方太厨具有限公司 Household gas stove burner

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