CN109945187A - A kind of low concentration gas pulsating combusting device with canalis pterygoideus - Google Patents
A kind of low concentration gas pulsating combusting device with canalis pterygoideus Download PDFInfo
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- CN109945187A CN109945187A CN201910213526.0A CN201910213526A CN109945187A CN 109945187 A CN109945187 A CN 109945187A CN 201910213526 A CN201910213526 A CN 201910213526A CN 109945187 A CN109945187 A CN 109945187A
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- nondestructive inspection
- methane
- current divider
- divider box
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 66
- 238000007689 inspection Methods 0.000 claims abstract description 53
- 230000010349 pulsation Effects 0.000 claims abstract description 36
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 178
- 238000009825 accumulation Methods 0.000 claims description 31
- 210000000867 larynx Anatomy 0.000 claims description 9
- 238000010992 reflux Methods 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 201000011180 Dental Pulp Calcification Diseases 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 145
- 238000000034 method Methods 0.000 description 10
- 230000003134 recirculating effect Effects 0.000 description 6
- 239000000567 combustion gas Substances 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 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
- 230000007812 deficiency Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a kind of low concentration gas pulsating combusting device with canalis pterygoideus, the gas current divider box including long column shape, there are five nondestructive inspection gas burners for the side setting of the gas current divider box；The gas current divider box is additionally provided with gas pulsation supply pipe far from the side of several nondestructive inspection gas burners, and the gas pulsation supply pipe is arranged in a mutually vertical manner with the gas current divider box；The outlet side of the gas pulsation supply pipe is connected to the middle part of the splitter cavity in the gas current divider box；Structure of the invention is simple, increases canalis pterygoideus structure, effectively enhances the flame holding during catching fire in each combustion chamber, the gas flow rate upper limit into burner is widened, preferably velocity field, discharge uniformity can be obtained under the optimizing design scheme, combustion stability is greatly enhanced；The structure for also adding enriching in this programme at the same time, solving the problems, such as that concentration is too low can not continuous burning.
Description
Technical field
The invention belongs to gas combustion fields.
Background technique
It is known that the main component methane of gas, is a kind of serious greenhouse gases, greenhouse effects and CO2It compares,
It is its 24.6 times, is even more CO to the ability for destroying atmospheric ozone layer27 times.Therefore a large amount of low concentration gas of annual mine
Idle discharge is put because that can not utilize, is not only the serious waste to limited non-renewable fossil energy, while also result in
Greenhouse effects and increasing environmental pollution.Its combustion heat value of gas is in 35000~39000kJ/m3Between, becoming greenhouse gases
Also play the role of high-grade energy simultaneously, comparable to conventional gas, it can be used as the raw material of derived energy chemical process.
But as the term suggests low concentration gas, extremely low for the ingredient of burning, generated heat is much smaller than in combustion process
Heat dissipation capacity into environment, sustained combustion is extremely difficult, therefore cannot be burnt using conventional burner, therefore right
Special combustion system and corresponding burner must be used in the low concentration gas for being in the concentration.
Intermittent combustion as a kind of special combustion system, neither detonation also Abnormal combustion but intermediate.It gives
The excitation for giving its certain condition, the acoustics pulsation for generating it and the thermal pulse generated in combustion process reach certain sound thermal coupling
It closes, periodic intermittent combustion can be generated.The characterization such as pressure, temperature and rate of heat release combustion characteristics in combustion process
State parameter does periodic variation at any time, have high burning efficiency, larger heat transfer coefficient, smaller discharge amount of pollution, can be with
The advantages of self-absorption pressurizing, the burning of low concentration gas can be effectively treated using pulsating Combustion Technology；
Since the concentration in gas source is not stationary value, from the low concentration gas in supervisor's indentation combustion chamber, there may be methane
The too low problem of concentration, even if there is also can not be successfully to light or nothing in combustion chamber in the case of combustion chamber is pulsed and supplied
Method keeps the continuity of multiple pulsation period burnings.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of burning more stable one
Low concentration gas pulsating combusting device of the kind with canalis pterygoideus.
Technical solution: to achieve the above object, a kind of low concentration gas pulsating combusting device with canalis pterygoideus of the invention, including
The gas current divider box of long column shape, there are five nondestructive inspection gas burners for the side setting of the gas current divider box；
The gas current divider box is additionally provided with gas pulsation supply pipe far from the side of several nondestructive inspection gas burners, described
Gas pulsation supply pipe is arranged in a mutually vertical manner with the gas current divider box；The outlet side of the gas pulsation supply pipe is connected to institute
State the middle part of the splitter cavity in gas current divider box；
Also symmetrically bypass is connected with left wing's pipe and right flank pipe for the two sides of gas pulsation supply pipe, left wing's pipe and right
The outlet of canalis pterygoideus is respectively communicated with the splitter cavity two sides in the gas current divider box；
Axis equidistant array distribution of five nondestructive inspection gas burners along the gas current divider box；Each nondestructive inspection gas burner
Axis is vertical with the axis of the gas current divider box；The nondestructive inspection gas burner is cylindrical barrel body structure, the nondestructive inspection gas burner
Inner cavity be cylindrical combustion chambers, the gas inlet end of each combustion chamber passes through at least five uniformly distributed gas gas ports connections
Splitter cavity in the gas current divider box；The one end of each combustion chamber far from the gas current divider box is smoke evacuation end.
Further, the larynx contracting channel that one section of internal diameter becomes smaller, the larynx are provided in the pipe of the gas pulsation supply pipe
The internal diameter in contracting channel is left wing's pipe/right flank bore half；The gas pulsation supply pipe and left wing's pipe/right flank pipe bypass
Junction is distributary division, and larynx contracting channel is between the distributary division and the gas current divider box.
Further, five nondestructive inspection gas burners successively include the first nondestructive inspection gas burner, the second nondestructive inspection gas burner, third watt
This burner, the 4th nondestructive inspection gas burner, the 5th nondestructive inspection gas burner；The outlet and the connectivity part position of the splitter cavity of left wing's pipe
Between first nondestructive inspection gas burner and the second nondestructive inspection gas burner；The outlet and the connectivity part of the splitter cavity of the right flank pipe
Between the 4th nondestructive inspection gas burner and the 5th nondestructive inspection gas burner；The outlet side of gas pulsation supply pipe and described the
Three nondestructive inspection gas burners are mutually concentric.
Further, the outside integrated setting of the nondestructive inspection gas burner has cricoid methane enriching cabinet, the ring-type
It is cricoid pure methane pressure accumulation chamber in methane enriching cabinet；It is also concentric between the pure methane pressure accumulation chamber and the combustion chamber to set
It is equipped with cricoid methane enriching cavity layer；By the first ring wall point between the pure methane pressure accumulation chamber and the methane enriching cavity layer
Every, have between the methane enriching cavity layer and the combustion chamber the second ring wall separation；Two lateral edge axis of second ring wall
Circumferentially array is evenly equipped with several methane enrichings hole, and each methane enriching hole is by the methane enriching cavity layer and the burning
It is interconnected between room；Circumferentially array distribution has several first air guide channels, each first air guide on first ring wall
The inner end in channel is connected to the methane enriching cavity layer, and the intracavitary pure methane pressure accumulation further includes rotation distribution ring body, described
Rotation distribution ring body turning set connects on the outside of first ring wall, and the inner ring integral middleization of the rotation distribution ring body is concentric
It is provided with annular flange, the inner wall of the annular flange blocks the outer end of each first air guide channel, in the annular flange
Circumferentially array distribution has several second air guide channels, and the outer end of each second air guide channel is connected to the pure methane pressure accumulation
The inner end of chamber, each second air guide channel can be connected to several first air guide channels with annular flange synchronous rotary to alignment respectively
Outer end；It further include pure methane pressurization supply pipe, the outlet side of the pure methane pressurization supply pipe is connected to the pure methane pressure accumulation
Chamber；It is provided with the check valve for preventing gas reflux in each first air guide channel, the check valve can prevent methane enriching
Gas in cavity layer is intracavitary to pure methane pressure accumulation by the first air guide channel reflux；The annular enclosed in the rotation distributing ring body
Flange two sides are also symmetrically rotatably equipped with two bearings；The outer ring of the rotation distribution ring body is provided with a circle denticle, the pure first
Alkane pressure accumulation chamber is also fixedly installed with motor, and synchronized links have an output gear on the output shaft of the motor, the output gear with
A circle denticle engagement connection in the rotation distribution ring body, the motor drive the rotation distribution ring body by output gear
It is rotated along axis.
The utility model has the advantages that structure of the invention is simple, increase canalis pterygoideus structure, effectively enhances during catching fire in each combustion chamber
Flame holding, widened into the gas flow rate upper limit in burner, can have been obtained under the optimizing design scheme more excellent
Velocity field, discharge uniformity, combustion stability is greatly enhanced；The knot of enriching is also added in this programme at the same time
Structure, solving the problems, such as that concentration is too low can not continuous burning.
Detailed description of the invention
Attached drawing 1 is the burner combination structure with canalis pterygoideus；
Attached drawing 2 is that the CFD of the burner combination structure with canalis pterygoideus analyzes speed cloud atlas；
Attached drawing 3 is that the CFD of nondestructive inspection gas burner analyzes Local Vector speed cloud atlas；
Attached drawing 4 is that burner when not installing methane enriching cabinet additional also splits structural schematic diagram；
Attached drawing 5 is to install the structural schematic diagram after methane enriching cabinet additional on the burner；
Attached drawing 6 is the first three-dimensional cutaway view of attached drawing 4；
Attached drawing 7 is the second three-dimensional cutaway view of attached drawing 4；
Attached drawing 8 is the third three-dimensional cutaway view of attached drawing 4；
Attached drawing 9 is rotation distribution ring body structural schematic diagram.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
A kind of low concentration gas pulsating combusting device with canalis pterygoideus as shown in attached drawing 1 to 9, the gas including long column shape shunt
Case 79, there are five nondestructive inspection gas burners 10 for the side setting of the gas current divider box 79；
The gas current divider box 79 is additionally provided with gas pulsation supply pipe far from the side of several nondestructive inspection gas burners 10
82, the gas pulsation supply pipe 82 is arranged in a mutually vertical manner with the gas current divider box 79；The gas pulsation supply pipe 82
Outlet side is connected to the middle part of the splitter cavity 78 in the gas current divider box 79；
Also symmetrically bypass is connected with left wing's pipe 84 and right flank pipe 85, the left wing for the two sides of the gas pulsation supply pipe 82
The outlet of pipe 84 and right flank pipe 85 is respectively communicated with 78 two sides of splitter cavity in the gas current divider box 79；
Axis equidistant array distribution of five nondestructive inspection gas burners 10 along the gas current divider box 79；Each gas combustion
The axis of device 10 is vertical with the axis of the gas current divider box 79；The nondestructive inspection gas burner 10 is cylindrical barrel body structure, described
The inner cavity of nondestructive inspection gas burner 10 is cylindrical combustion chambers 12, and it is uniformly distributed that the gas inlet end of each combustion chamber 12 passes through at least five
Gas gas port 77 be connected to the splitter cavity 78 in the gas current divider box 79；Each combustion chamber 12 is shunted far from the gas
One end of case 79 is smoke evacuation end.
The larynx contracting channel 88 that one section of internal diameter becomes smaller, larynx contracting channel are provided in the pipe of the gas pulsation supply pipe 82
88 internal diameter is the half of 84/ right flank pipe of left wing's pipe, 85 internal diameter；The gas pulsation supply pipe 82 and 84/ right flank pipe 85 of left wing's pipe
Bypass junction be distributary division 013, larynx contracting channel 88 be located at the distributary division 013 and the gas current divider box 79 it
Between.
Five nondestructive inspection gas burners 10 successively include the first nondestructive inspection gas burner 10.1, the second nondestructive inspection gas burner 10.2, third
Nondestructive inspection gas burner 10.3, the 4th nondestructive inspection gas burner 10.4, the 5th nondestructive inspection gas burner 10.5；The outlet of left wing's pipe 84 with it is described
The connectivity part of splitter cavity 78 is between first nondestructive inspection gas burner 10.1 and the second nondestructive inspection gas burner 10.2；The right flank pipe
85 outlet and the connectivity part of the splitter cavity 78 are located at the 4th nondestructive inspection gas burner 10.4 and the 5th nondestructive inspection gas burner 10.5
Between；The outlet side of the gas pulsation supply pipe 82 and the third nondestructive inspection gas burner 10.3 are mutually concentric.
The outside integrated setting of the nondestructive inspection gas burner 10 has cricoid methane enriching cabinet 18, and the ring-type methane adds
It is cricoid pure methane pressure accumulation chamber 2 in dense cabinet 18；It is also concentric between the pure methane pressure accumulation chamber 2 and the combustion chamber 12 to set
It is equipped with cricoid methane enriching cavity layer 7；By the first ring between the pure methane pressure accumulation chamber 2 and the methane enriching cavity layer 7
Wall 1 separates, and has the separation of the second ring wall 9 between the methane enriching cavity layer 7 and the combustion chamber 12；Second ring wall 9
Circumferentially array is evenly equipped with several methane enrichings hole 11 to two lateral edge axis, and each methane enriching hole 11 is empty by the methane enriching
It is interconnected between cavity layer 7 and the combustion chamber 12；Circumferentially array distribution has several first air guides logical on first ring wall 1
Road 14, the inner end of each first air guide channel 14 are connected to the methane enriching cavity layer 7, in the pure methane pressure accumulation chamber 2
It further include rotation distribution ring body 6, the rotation of rotation distribution ring body 6 is socketed in 1 outside of the first ring wall, the rotation distribution
The inner ring integral middleization of ring body 6 is concentric to be provided with annular flange 21, and the inner wall of the annular flange 21 blocks each described the
The outer end of one air guide channel 14, circumferentially array distribution has several second air guide channels 17 in the annular flange 21, each described
The outer end of second air guide channel 17 is connected to the pure methane pressure accumulation chamber 2, and the inner end of each second air guide channel 17 can be with ring
21 synchronous rotary of shape flange is connected to the outer end of several first air guide channels 14 to alignment respectively；It further include pure methane pressurization supply pipe
8, the outlet side of the pure methane pressurization supply pipe 8 is connected to the pure methane pressure accumulation chamber 2；In each first air guide channel 14
It is provided with the check valve 13 for preventing gas reflux, the check valve 13 can prevent the gas in methane enriching cavity layer 7 by the
In one air guide channel, 14 reflux to pure methane pressure accumulation chamber 2；21 two sides of annular flange of rotation 6 inner ring of distribution ring body are also symmetrical
It is rotatably equipped with two bearings 16；The outer ring of the rotation distribution ring body 6 is provided with a circle denticle 25, the pure methane pressure accumulation chamber 2
Also be fixedly installed with motor 5, synchronized links have an output gear 3 on the output shaft 4 of the motor 5, the output gear 3 with it is described
The circle engagement connection of denticle 25 in distribution ring body 6 is rotated, the motor 5 drives the rotation distributing ring by output gear 3
Body 6 is rotated along axis.
The reasonable structure of burner and technological progress are verified using CFD method for numerical simulation:
Use the numerical simulation completed under the grid with ANSYS Fluent16.0, first inspection grid, it is ensured that its grid
Area and volume do not have the presence of negative value, do not consider that gravity influences.
In a model, setting flow process is the steady-flow based on pressure, simultaneously because our major concern low concentrations
The flow condition of gas calculates it using Multicomponent Model numerical value and is burning it is therefore assumed that fluid is the gaseous mixture of CH4 and air
Flow Field Distribution situation in device pipeline.
Model setting: energy equation, standard Equations of Turbulence, component transport equation；
Material setting: fluid methane-air, solid wall surface are default aluminum；
Boundary condition setting: entrance boundary condition: speed entrance, set gas pulse supply pipe 82 feed speed as
1.5m/s；Export boundary condition: the smoke evacuation outlet of combustion chamber 12 is that atmospheric pressure exports；Turbulence indicator: turbulence intensity+waterpower is straight
Diameter；
Temperature: 300K；
Component: 4%CH4,19.74%O2,2.82%CO2,73.44%N2；
Method for solving: SIMPLE single precision, gradient are based on grid and use least square method, and pressure uses Second-order Up-wind, move
Windward using single order, windward using single order, turbulence dissipation rate uses single order windward to Turbulent Kinetic to amount；
Residual error monitoring: all parameter convergence precisions are set as 0.001；
Iteration step length: 1000；
It initializes, in calculating process, in 324 step, indices converge to setting accuracy；
The CFD of the burner combination structure with canalis pterygoideus obtained after simulation analyzes speed cloud atlas such as attached drawing 2, by speed
Cloud atlas can be seen that the structure with canalis pterygoideus, can obtain preferable intake velocity field, analyze in the CFD that attached drawing 3 is nondestructive inspection gas burner
Dual reflux area is generated in Local Vector speed cloud atlas as can be seen that combustion chamber 12, burner local velocity polar plot can be bright
Aobvious to find out there are two almost symmetrical recirculating zone its flow field in, the generation of the symmetric double recirculating zone enhances gas combustion, and
Period has increased following procedure and phenomenon newly: as the carry out high-temperature flue gas of burning constantly generates, simultaneous backflow phenomenon quilt
Volume be drawn onto flame root, with newly into combustion gas carry out heat transfer.This means that a heat source has been increased newly again in burner root, it is right
In the sustained combustion important in inhibiting of gas；Especially in first ignition timing, the effect of recirculating zone be will be apparent from；High temperature cigarette
Gas is from starting to flow back into burner root, and flow velocity will be increasing, the medium in flue gas and mainstream being refluxed in the meantime
It mixes, carries out efficient MOMENTUM TRANSMISSION, promote to be exchanged with each other mixing in the new and old combustion gas of recirculating zone, thus further such that combustion
The Temperature Distribution for burning chamber interior is more uniform；Uncombusted combustion gas of the part with high temperature gases recirculating to combustion chamber root, meeting
It is newly rekindled in root into combustion gas, is played an important role for the completely burned of gas together.All in all recirculating zone
Comprehensive function is to make gas stabilization in burner and completely burn, and promotion burning room temperature is uniform, hot-working quality is high；
Flame holding when enhancing each pulsation period during kindling, has widened the gas flow rate upper limit into burner 10；
Method, process and the technological progress of the enriching mechanism of this programme arrange as follows:
Gas source is to include CH4、O2、N2、CO2Mixed gas, wherein O2The enough CH of concentration4Combustion reaction:
CH in gas source4When concentration is more than 4%, do not have to carry out CH to combustion chamber 224Enriching；The supply of pure methane pressurization at this time
Pipe 8 supplies pure methane not into pure methane pressure accumulation chamber 2；Check valve 13 can prevent the gas in methane enriching cavity layer 7 at this time
Body passes through in several first air guide channel, 14 reflux to pure methane pressure accumulation chamber 2；Then gas is passed through under the action of gas pump
Gas pulsation supply pipe 82 continuously supplies gas into gas current divider box 79 in the form of the pulsation period；And then make splitter cavity 78
Inside forms continuous pulsation air pressure, and then the gas in splitter cavity 78 is in the pulsation period to combustion by each gas gas port 77
It burns and sprays methane gas in room 12；Gas in combustion chamber 12 forms continuous arteries and veins after igniter is lighted in combustion chamber 12
Get angry flame, and then the high-temperature tail gas that the burning of 12 internal cause of combustion chamber generates continues through the smoke evacuation end of combustion chamber 12 in the form of wake flame
It sprays, and then the wake flame that each exhaust straight tube 20 is sprayed heats heating equipment；The utilization to gas is realized in turn；
As CH in gas source4When concentration is less than 4%, gas is passed through into gas pulsation supply pipe 82 under the action of gas pump
Gas continuously is supplied into gas current divider box 79 in the form of the pulsation period；And then the inside of splitter cavity 78 is made to form continuous arteries and veins
It takes offence pressure, and then the gas in splitter cavity 78 sprays gas into combustion chamber 12 in the pulsation period by each gas gas port 77
Gas；If due to CH in the methane gas by the ejection of dry gas gas port 774Concentration, can not be suitable in combustion chamber 12 less than 4%
The continuity of multiple pulsation period burnings is lighted or be cannot keep to benefit, needs to carry out CH to combustion chamber 124Enriching；Pure first at this time
Alkane is pressurized supply pipe 8 and pure methane is pressed into pure methane pressure accumulation chamber 2, and pure methane pressurization supply pipe 8 persistently maintains pure methane
Air pressure in pressure accumulation chamber 2, and guarantee that the air pressure in pure methane pressure accumulation chamber 2 is consistently greater than the air pressure in combustion chamber 12, start at this time
Motor 5, so motor 5 by output gear 3 drive the rotation distribution ring body 6 along axis rotation, and then annular flange 21 with
6 synchronous rotary of distribution ring body is rotated, annular flange 21 makes the inner end of each second air guide channel 17 in the period in Periodic Rotating
Property rotation the outer end of several first air guide channels 14 is connected to alignment, and then make pure methane pressure accumulation chamber 2 and methane enriching cavity
It is interconnected between layer 7 in periodic, and then so that the methane in pure methane pressure accumulation chamber 2 is passed through several first air guide channels 14 and be in
Periodically to the incident pure CH of 7 internal pressure of methane enriching cavity layer4, and then make to form pure CH in methane enriching cavity layer 74Pulsation gas
Pressure, and then the CH in methane enriching cavity layer 74Pulsed gas is by several methane enrichings hole 11 in pulsation period property to burning
The pure CH of indentation in room 124, by controlling 3 revolving speed of output gear of motor 5, and then rotation distribution ring body 6 is controlled, stores pure methane
It presses between chamber 2 and methane enriching cavity layer 7 in periodically interconnected period and step and gas gas port 77 to combustion chamber
The period of methane gas is sprayed in 12 and is acted in agreement；And then it realizes and the intermittent combustion period each in combustion chamber 12 is carried out
Combustion gas enriching guarantees that combustion chamber 12 can continuous intermittent combustion；And then the high-temperature tail gas that the burning of 12 internal cause of combustion chamber generates continues
Sprayed in the form of wake flame by the smoke evacuation end of combustion chamber 12, so it is each be vented wake flame that straight tube 20 is sprayed to
Hot equipment is heated；The utilization to gas is realized in turn；Pure methane gas energy in methane enriching cavity layer 7 at the same time
The heat generated after burning in combustion chamber 12 is absorbed by the second ring wall 9, and then makes several methane enrichings hole 11 to combustion chamber 12
Interior injection is the pure CH having been warmed up4, and then effectively improve the efficiency of combustion in combustion chamber 12.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of low concentration gas pulsating combusting device with canalis pterygoideus, it is characterised in that: the gas current divider box (79) including long column shape,
There are five nondestructive inspection gas burner (10) for the side setting of the gas current divider box (79)；
The gas current divider box (79) is additionally provided with gas pulsation supply pipe far from the side of several nondestructive inspection gas burners (10)
(82), gas pulsation supply pipe (82) is arranged in a mutually vertical manner with the gas current divider box (79)；The gas pulsation supply
The outlet side of pipe (82) is connected to the middle part of the splitter cavity (78) in the gas current divider box (79)；
Also symmetrically bypass is connected with left wing's pipe (84) and right flank pipe (85), the left side for the two sides of gas pulsation supply pipe (82)
The outlet of canalis pterygoideus (84) and right flank pipe (85) is respectively communicated with splitter cavity (78) two sides in the gas current divider box (79)；
Axis equidistant array distribution of five nondestructive inspection gas burners (10) along the gas current divider box (79)；Each gas combustion
The axis of device (10) is vertical with the axis of the gas current divider box (79)；The nondestructive inspection gas burner (10) is cylindrical barrel body knot
Structure, the inner cavity of the nondestructive inspection gas burner (10) are cylindrical combustion chambers (12), and the gas inlet end of each combustion chamber (12) is logical
Cross the splitter cavity (78) that at least five uniformly distributed gas gas ports (77) are connected in the gas current divider box (79)；Each burning
The one end of room (12) far from the gas current divider box (79) is smoke evacuation end.
2. a kind of low concentration gas pulsating combusting device with canalis pterygoideus according to claim 1, it is characterised in that: the gas
It is provided with the larynx contracting channel (88) that one section of internal diameter becomes smaller in the pipe of pulsation supply pipe (82), the internal diameter in larynx contracting channel (88) is
The half of left wing's pipe (84)/right flank pipe (85) internal diameter；Gas pulsation supply pipe (82) and left wing's pipe (84)/right flank pipe (85)
Bypass junction be distributary division (013), larynx contracting channel (88) is located at the distributary division (013) and the gas current divider box
(79) between.
3. a kind of low concentration gas pulsating combusting device with canalis pterygoideus according to claim 2, it is characterised in that: five described watts
This burner (10) successively includes the first nondestructive inspection gas burner (10.1), the second nondestructive inspection gas burner (10.2), third nondestructive inspection gas burner
(10.3), the 4th nondestructive inspection gas burner (10.4), the 5th nondestructive inspection gas burner (10.5)；The outlet of left wing pipe (84) with described point
The connectivity part of chamber (78) is flowed between first nondestructive inspection gas burner (10.1) and the second nondestructive inspection gas burner (10.2)；The right side
The outlet of canalis pterygoideus (85) and the connectivity part of the splitter cavity (78) are located at the 4th nondestructive inspection gas burner (10.4) and the 5th gas
Between burner (10.5)；The outlet side of gas pulsation supply pipe (82) and the third nondestructive inspection gas burner (10.3) are mutual
It is concentric.
4. a kind of low concentration gas pulsating combusting device with canalis pterygoideus according to claim 2, it is characterised in that: the gas
The outside integrated setting of burner (10) has cricoid methane enriching cabinet (18), and the ring-type methane enriching cabinet (18) is interior
For cricoid pure methane pressure accumulation chamber (2)；It is also concentric between the pure methane pressure accumulation chamber (2) and the combustion chamber (12) to be provided with
Cricoid methane enriching cavity layer (7)；By first between the pure methane pressure accumulation chamber (2) and the methane enriching cavity layer (7)
Ring wall (1) separates, and has the second ring wall (9) separation between the methane enriching cavity layer (7) and the combustion chamber (12)；Described
Circumferentially array is evenly equipped with several methane enrichings hole (11), each methane enriching hole (11) to two lateral edge axis of two ring walls (9)
It will be interconnected between the methane enriching cavity layer (7) and the combustion chamber (12)；Circumferentially battle array on first ring wall (1)
Column distribution has several first air guide channels (14), and it is empty that the inner end of each first air guide channel (14) is connected to the methane enriching
Cavity layer (7), the interior pure methane pressure accumulation chamber (2) further includes rotation distribution ring body (6), rotation distribution ring body (6) turning set
It connects on the outside of first ring wall (1), the inner ring integral middleization of rotation distribution ring body (6) is concentric to be provided with convex annular
Edge (21), the inner wall of the annular flange (21) block the outer end of each first air guide channel (14), the annular flange
(21) circumferentially array distribution has several second air guide channels (17) on, and the outer end of each second air guide channel (17) is connected to
The inner end of the pure methane pressure accumulation chamber (2), each second air guide channel (17) can extremely be divided with annular flange (21) synchronous rotary
The outer end of several first air guide channels (14) Dui Qi be connected to；It further include pure methane pressurization supply pipe (8), the pure methane pressurization
The outlet side of supply pipe (8) is connected to the pure methane pressure accumulation chamber (2)；Being provided in each first air guide channel (14) prevents
The check valve (13) of gas reflux, the check valve (13) can prevent the gas in methane enriching cavity layer (7) from leading by first
In gas channel (14) reflux to pure methane pressure accumulation chamber (2)；Annular flange (21) two sides of described rotation distribution ring body (6) inner ring are also
Symmetrically it is rotatably equipped with two bearings (16)；The outer ring of rotation distribution ring body (6) is provided with a circle denticle (25), the pure first
Alkane pressure accumulation chamber (2) is also fixedly installed with motor (5), and synchronized links have output gear (3) on the output shaft (4) of the motor (5),
The output gear (3) engages connection with circle denticle (25) on rotation distribution ring body (6), and the motor (5) passes through
Output gear (3) drives the rotation distribution ring body (6) to rotate along axis.
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| CN109945187B (en) | 2023-09-29 |
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