Summary of the invention
The objective of the invention is the insufficient environmental pollution problems that easily causes of burning that existing overhead open type torch exists, invent a kind of efficiency of combustion height, land the gas composite wind matching type high-efficiency ground closed type torch of enclosed construction.
Technical scheme of the present invention is:
A kind of gas composite wind matching type high-efficiency ground closed type torch, comprise combustion chamber 6 and flue 7, it is characterized in that described combustion chamber 6 and flue 7 form the cylindrical tube 1 of a up/down perforation, air distribution shutter 2 down is installed in the under shed of cylindrical shell 1, annular burner 3 more than three or three is installed in the top of descending air distribution shutter 2, cylindrical shell 1, each annular burner 3 all links to each other with uniform gas nozzle on cylindrical shell 1 perisporium, and more little the closer to the diameter of the burner 3 of air distribution shutter 2 down; On the perisporium of cylindrical shell 1, be provided with air distribution ring 4 with described burner 3 opposite position places, air distribution ring 4 links to each other with the air outlet of air blast 5, between the burner 3 of down air distribution shutter 2 and minimum diameter, altar lamp 8 is installed, 9 of igniters be installed in the minimum diameter of foot in the cylindrical shell 1 burner 3 around.
Described air distribution shutter 2 down is the blade angle adjustable shutter arrangement, and blade angle can be controlled open amount according to ignition temperature automatically by servomotor.
Flame detecting ion bar 10 is installed in the combustion chamber 7; Cigarette temperature probe 11 is installed in flue 6.
Described cylindrical shell 1 is fixed on the ground by 12 supportings of four supporting legs.
Beneficial effect of the present invention:
Whole torch of the present invention is for landing mounting structure, and combustion chamber and flue are formed a cylindrical tube, adopts four support columns and chassis, ground basis fixing, thereby simple in structure, makes easy for installation.
Be provided with the multi-stage annular burner in the combustion chamber of the present invention, the burner nozzle is uniformly distributed along the circumference on every grade of burner.When adopting multistage burner, the position is big by last burner diameter, is used for big flow fuel gas buring, the position by under burning diameter little, be used for the low discharge fuel gas buring.Burners at different levels can work independently, and also can come into operation simultaneously.So not only guarantee high burning efficiency (greater than 99.5%), and had very high height flow-rate ratio (greater than 200: 1).Owing to adopt the multi-stage annular burner, make burners at different levels not have structural interference, really realized the multistage combustion function.
The present invention has adopted combined type air distribution structure.Fuel gas buring needs the air dispensing, to guarantee abundant burning.Combined type air distribution structure in the torch comprises air distributing type shutter and multistage air distribution ring down: following air distributing type shutter is positioned at torch cylindrical shell bottom, adopt servomotor to control the open amount size automatically according to ignition temperature, air is inhaled into the combustion chamber and participates in burning under the formed negative pressure in the combustion chamber, form the nature air distribution, because air distribution outlet is positioned at torch cylindrical shell bottom surface, with in torch cylindrical shell side air distribution outlet is set and compares, the air distribution area that can form is big; Multistage air distribution ring is corresponding with multistage burner, the annular air distribution device of bringing tuyere into is set above each burner, adopt blower fan to carry out air blast, gas quantity signal according to burning, regulate and force the air distribution amount and form the impact turbulent flow, can guarantee the air distribution amount of burning required and realize efficient burning with combustion gas.Following air distributing type shutter and multistage air distribution ring can be provided with use separately, also use can be set simultaneously, thereby possess combined type air distribution function.
The present invention is provided with altar lamp (single-pipe directly spraying burner) in the combustion chamber, it can act as a fuel with combustion gas, also can adopt conventional gases such as liquefied petroleum gas or natural gas to act as a fuel.The effect of altar lamp is to light main burner and the protection torch avoids fuel gas to assemble during inoperative; Adopt the dual ignition structure, a cover igniter respectively is set on altar lamp and minimum capacity burner, guarantee that ignition success rate is greater than 99%; The flame detecting ion bar is set in the combustion chamber, and with respect to the ultraviolet detector (UV) that generally adopts at present, its reliability is higher; A plurality of temp probes and gas sampling probe are set on the flue of torch cylindrical shell, can carry out on-line monitoring flue gas and fired state.
The present invention both can be used for the combustion gas that combustion refuse landfill gas, coal bed gas, biogas, oil field gas etc. are rich in methane, and the discharging burning of other calorific values such as blast furnace gas, coke-stove gas greater than the combustion gas of 1000 kilocalories/standard cubic meter also can be used to burn.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 1.
A kind of gas composite wind matching type high-efficiency ground closed type torch, comprise combustion chamber 6 and flue 7, described combustion chamber 6 and flue 7 form the cylindrical tube 1 of a up/down perforation, cylindrical tube 1 is bearing on the ground by four root posts 12, in the under shed of cylindrical shell 1 is the natural air inlet mouth of combustion chamber 6, air distribution shutter 2 down is installed, top at cylindrical shell 1 promptly is equipped with rain cover 16 from a distance, flue 7 upper end, the external diameter of rain cover 16 should and leave the upper end certain distance (can set as required) of cylindrical shell 1 greater than the external diameter of cylindrical shell 1, top at following air distribution shutter 2, annular burner 3 more than three or three is installed in the cylindrical shell 1, each annular burner 3 all links to each other with uniform gas nozzle on cylindrical shell 1 perisporium, spark arrester 13 is installed on the air inlet pipeline of gas nozzle, stop valve 14 and dish valve 15 are to guarantee air feed safety, in order to prevent structural interference, the outfit of burners 3 at different levels should be in line with disposing the closer to the more little principle of the diameter of the burner 3 that descends air distribution shutter 2; On the perisporium of cylindrical shell 1, be provided with air distribution ring 4 with described burner 3 opposite position places, air distribution ring 4 links to each other with the air outlet of air blast 5, between the burner 3 of down air distribution shutter 2 and minimum diameter, altar lamp 8 is installed, 9 of igniters be installed in the minimum diameter of foot in the cylindrical shell 1 burner 3 around.
In order to regulate nature air distribution amount, following air distribution shutter 2 should adopt the blade angle adjustable shutter arrangement, and blade angle can be controlled open amount according to ignition temperature automatically by servomotor.
In order to realize automatic control, also flame detecting ion bar 10 can be installed in combustion chamber 7; Cigarette temperature probe 11 and sampling probe 17 are installed in flue 6.
During concrete the burning, air distribution ring 4 can work independently with following air distribution shutter, also can work simultaneously, and burners 3 at different levels can be worked simultaneously, also can work independently.
The present invention does not relate to the part prior art that maybe can adopt same as the prior art and is realized.