CN204678327U - The injection type burner of protective cover thermal stress can be reduced - Google Patents
The injection type burner of protective cover thermal stress can be reduced Download PDFInfo
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- CN204678327U CN204678327U CN201520193652.1U CN201520193652U CN204678327U CN 204678327 U CN204678327 U CN 204678327U CN 201520193652 U CN201520193652 U CN 201520193652U CN 204678327 U CN204678327 U CN 204678327U
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Abstract
A kind of injection type burner that can reduce protective cover thermal stress, comprise the multilayer proofing cover vertically arranged, every one deck protective cover closes to form the flame chamber with upper and lower two openends in the circumferential, in the two-layer protective cover that in the vertical direction is adjacent, the radial width of last layer protective cover is greater than the radial width of lower one deck, make the injection district forming one and described flame chamber fluid communication between adjacent two layers protective cover, at least the outer peripheral face of one deck protective cover on the lower circumferentially distributes spaced some venturi burners, the top of each venturi burner is stretched into described injection district and is covered by the last layer protective cover be close at least in the horizontal direction with the flame making described venturi burner and formed, each venturi burner is relative to vertical direction radially-inwardly deflection.
Description
Technical field
The present invention relates to a kind of injection type burner, particularly relate to a kind of injection type burner that can reduce protective cover thermal stress.
Background technology
In petrochemical equipment, unnecessary, harmful, the unbalanced waste gas discharged in the timely process for producing device of Venting and Flare Stack System energy, and the defective gas produced when can process test run, start-stop car, and a large amount of gases of instantaneous releasing during accident, assurance device is normal, safe operation.Above-mentioned antiaircraft torch is in fact a kind of venturi burner, and it utilizes venturi mixer to be mixed with air by antiaircraft gas, is then burnt.Flare system can release large calorimetric in combustion, in order to reduce the heat radiation that flame causes surrounding, needing to arrange protective cover at flame periphery, therefore protective cover bearing huge thermal stress.
Summary of the invention
In view of this, the present invention proposes a kind of injection type burner that can reduce protective cover thermal stress.
The invention provides a kind of injection type burner that can reduce protective cover thermal stress, comprise the multilayer proofing cover vertically arranged, every one deck protective cover closes to form the flame chamber with upper and lower two openends in the circumferential, in the two-layer protective cover that in the vertical direction is adjacent, the radial width of last layer protective cover is greater than the radial width of lower one deck, make the injection district forming one and described flame chamber fluid communication between adjacent two layers protective cover, at least the outer peripheral face of one deck protective cover on the lower circumferentially distributes spaced some venturi burners, the top of each venturi burner is stretched into described injection district and is covered by the last layer protective cover be close at least in the horizontal direction with the flame making described venturi burner and formed, each venturi burner is radially-inwardly relative to vertical direction deflection.
In one embodiment, the angle excursion of each venturi burner is 3-15 degree.
In one embodiment, the outer peripheral face of continuous multilayer protective cover is on the lower respectively arranged with some venturi burners at above-mentioned interval, and the top protective cover outer peripheral face of multilayer does not arrange any venturi burner, in described continuous multilayer protective cover on the lower, the fuel air of some venturi burners that every layer of protective cover is corresponding is independent in units of layer to be controlled.
In one embodiment, in described continuous multilayer protective cover on the lower, the outer peripheral face of every layer of flameproof enclosure is equipped with an air inlet endless tube, and some venturi burners that this layer of protective cover is corresponding are connected to this air inlet endless tube jointly, and the air inlet endless tube on every layer of protective cover is connected with an inlet manifold.
In one embodiment, in at least top multilayer proofing cover, the wall of every layer of protective cover comprises the outer wall and inner layer wall that separate diametrically, and this outer wall and inner layer wall all form openend at the upper limb of this protective cover and lower edge and can circulate between described outer wall and inner layer wall to make air.
In one embodiment, the wall of all layer protective covers comprises above-mentioned outer wall and inner layer wall.
In sum, the invention provides a kind of injection type burner that can reduce protective cover thermal stress, this injection type burner have employed multilayer proofing cover structure, and protective cover is arranged in adjacent protective cover, the radial width of last layer protective cover is greater than the radial width of lower one deck, make to be formed between adjacent two layers protective cover the injection district with flame chamber fluid communication, the top of venturi burner is stretched into the flame that injection district makes burner be formed and is covered by the last layer protective cover be close at least in the horizontal direction, each venturi burner is radially-inwardly relative to vertical direction deflection.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of injection type burner.
Fig. 2 is the side profile schematic diagram of the second layer and third layer protective cover.
Detailed description of the invention
Before describing the embodiments in more detail, it should be understood that and the invention is not restricted to detailed construction in the application hereafter or described in accompanying drawing or arrangement of elements.The present invention can be the embodiment that alternate manner realizes.And, should be appreciated that wording used herein and term are only used as to describe purposes, should being construed as limiting property not explain.Similar wording meant and comprised item listed thereafter, its equivalent and other additional things " comprising " used herein, " comprising ", " having " etc.Particularly, when describing " certain element ", the quantity that the present invention does not limit this element is one, also can comprise multiple.
The invention provides a kind of injection type burner that can reduce protective cover thermal stress, comprise the multilayer proofing cover vertically arranged, every one deck protective cover closes to form the flame chamber with upper and lower two openends in the circumferential, in the two-layer protective cover that in the vertical direction is adjacent, the radial width of last layer protective cover is greater than the radial width of lower one deck, make the injection district forming one and described flame chamber fluid communication between adjacent two layers protective cover, at least the outer peripheral face of one deck protective cover on the lower circumferentially distributes spaced some venturi burners, the top of each venturi burner is stretched into described injection district and is covered by the last layer protective cover be close at least in the horizontal direction with the flame making described venturi burner and formed, each venturi burner is radially-inwardly relative to vertical direction deflection.
In the embodiment shown in Fig. 1 and Fig. 2, injection type burner comprises the seven layers of protective cover vertically arranged, comprises ground floor protective cover 10, second layer protective cover 12, third layer protective cover the 14, the four to seven layer of protective cover 16.Every one deck protective cover closes to form the flame chamber with upper and lower two openends in the circumferential.In the two-layer protective cover that in the vertical direction is adjacent, the radial width of last layer protective cover is greater than the radial width of lower one deck, makes the injection district forming one and described flame chamber fluid communication between adjacent two layers protective cover.Such as, for the second layer and third layer protective cover 12,14, the radial width of third layer protective cover 14 is greater than the radial width of second layer protective cover 12, forms the injection district 18 of one and flame chamber fluid communication between two-layer.
At least the outer peripheral face of one deck protective cover on the lower circumferentially distributes spaced some first venturi burners.Such as, as Fig. 2, the outer peripheral face of second layer protective cover 12 distributes spaced some first venturi burners 20 vertically.The top of each the first venturi burner 20 is stretched into described injection district 18 and is covered by the last layer protective cover (i.e. third layer protective cover 14) be close at least in the horizontal direction to make the flame of the first venturi burner 18 formation.In embodiment shown in Fig. 1, the periphery of the second layer 12 and third layer 14 is all provided with the first venturi burner 18 at described interval, and the four to seven layer of protective cover 16 does not arrange any burner, only for covering flame, the heat insulation and effect such as to keep out the wind.In other embodiments, venturi burner can be set on more or less continuous multilayer on the lower or one deck protective cover.
In above-mentioned continuous multilayer protective cover 12 and 14 on the lower, the fuel air of some first venturi burners of every layer of protective cover 12 and 14 correspondence is independent in units of layer to be controlled." layer " herein refers to the layer of protective cover.In embodiment shown in Fig. 1, in second layer protective cover 12 and third layer protective cover 14, the outer peripheral face of every layer of protective cover is equipped with an air inlet endless tube 22, and some first venturi burners 18 that this layer of protective cover is corresponding are connected to this air inlet endless tube 22 jointly.And the air inlet endless tube 22 on every layer of protective cover is all connected with an inlet manifold 24.By controlling the valve between air inlet endless tube 22 and inlet manifold 24, get final product fuel metering gas from inlet manifold 24 to the distribution of each air inlet endless tube, thus each air inlet endless tube 22 of independent control.
In embodiment shown in Fig. 1, the most the lower layer of protective cover, namely the inside of ground floor protective cover 10 is provided with a burner array (not shown), comprise multiple second venturi burner, these the second venturi burners are connected to straight line air inlet pipe 26, and straight line air inlet pipe 26 is connected with inlet manifold 24.
In the present embodiment, the fuel gas of inlet manifold 24 is assigned to the microburner 18 that burner array and each air inlet endless tube 22 are installed.Compare and fuel gas passed into a large-scale burner and burn, microburner of the present invention can ensure that burning is more abundant, effectively reduces exhaust refuse.Meanwhile, flame height is lower, effectively reduces light pollution.
In the protective cover of at least part of layer, the wall of every layer of protective cover comprises the outer wall and inner layer wall that separate diametrically, and this outer wall and inner layer wall all form openend at the upper limb of this protective cover and lower edge and can circulate between described outer wall and inner layer wall to make air.In certain embodiments, only wherein the wall of one or more layers protective cover comprises outer wall as above and inner layer wall.In other embodiments, also the wall of protective cover of all layers outer wall as above and inner layer wall can be comprised.As shown in Figure 2, be described for the second layer and third layer protective cover 12,14.In this embodiment, second layer protective cover 12 and third layer protective cover 14 are all double-wall structure.Such as, third layer protective cover 14 comprises outer wall 28 and inner layer wall 30, and outer wall 28 and inner layer wall 30 separate diametrically, and forms opening 32,34 respectively at the upper limb of third layer protective cover 14 and lower edge.When the flame in protective cover 14 rises, the air outside protective cover 14 will enter protective cover inside from injection between outer wall 28 and inner layer wall 30.The air that injection enters participates in burning away of fuel imperfect combustion in flame on the one hand, dispels the heat on the other hand to the wall of protective cover.Utilize double-wall structure, inner layer wall 30 is main heated walls, and the air entered for constant injection between outer wall 28 and inner layer wall 30, therefore the temperature of outer wall 28 effectively reduces, and significantly reduces the heat radiation of burner.
The venturi burner 18 that air inlet endless tube 22 is installed is radially-inwardly relative to vertical direction deflection, and namely the center line of venturi burner 18 and vertical direction form an angle excursion.In the present embodiment, this angle excursion is 3-15 degree.Due to burner radially-inwardly deflection, the flame therefore produced, by the wall radially-inwardly away from protective cover, makes it possible to the thermal stress reducing protective cover.
In the embodiment of Fig. 1, ground floor is block form, and all the other protective covers are annulars.In another embodiment, all layer protective covers can be all block form.
In sum, the invention provides a kind of injection type burner that can reduce protective cover thermal stress, this injection type burner have employed multilayer proofing cover structure, and protective cover is arranged in adjacent protective cover, the radial width of last layer protective cover is greater than the radial width of lower one deck, make to be formed between adjacent two layers protective cover the injection district with flame chamber fluid communication, the top of venturi burner is stretched into the flame that injection district makes burner be formed and is covered by the last layer protective cover be close at least in the horizontal direction, each venturi burner is relative to vertical direction radially-inwardly deflection, the thermal shock of flame to protective cover of venturi burner will be reduced, thus play the effect reducing protective cover thermal stress.
Concept described herein may be embodied to other form when not departing from its spirit and characteristic.Disclosed specific embodiment should be regarded as exemplary instead of restrictive.Therefore, scope of the present invention is by appended claim, instead of determines according to these descriptions before.Any change in the letter and equivalency range of claim all should belong to the scope of these claims.
Claims (6)
1. one kind can be reduced the injection type burner of protective cover thermal stress, it is characterized in that, comprise the multilayer proofing cover vertically arranged, every one deck protective cover closes to form the flame chamber with upper and lower two openends in the circumferential, in the two-layer protective cover that in the vertical direction is adjacent, the radial width of last layer protective cover is greater than the radial width of lower one deck, make the injection district forming one and described flame chamber fluid communication between adjacent two layers protective cover, at least the outer peripheral face of one deck protective cover on the lower circumferentially distributes spaced some venturi burners, the top of each venturi burner is stretched into described injection district and is covered by the last layer protective cover be close at least in the horizontal direction with the flame making described venturi burner and formed, each venturi burner is relative to vertical direction radially-inwardly deflection.
2. can reduce the injection type burner of protective cover thermal stress as claimed in claim 1, it is characterized in that, the angle excursion of each venturi burner is 3-15 degree.
3. can reduce the injection type burner of protective cover thermal stress as claimed in claim 1, it is characterized in that, the outer peripheral face of continuous multilayer protective cover is on the lower respectively arranged with some venturi burners at above-mentioned interval, and the top protective cover outer peripheral face of multilayer does not arrange any venturi burner, in described continuous multilayer protective cover on the lower, the fuel air of some venturi burners that every layer of protective cover is corresponding is independent in units of layer to be controlled.
4. can reduce the injection type burner of protective cover thermal stress as claimed in claim 3, it is characterized in that, in described continuous multilayer protective cover on the lower, the outer peripheral face of every layer of flameproof enclosure is equipped with an air inlet endless tube, some venturi burners that this layer of protective cover is corresponding are connected to this air inlet endless tube jointly, and the air inlet endless tube on every layer of protective cover is connected with an inlet manifold.
5. can reduce the injection type burner of protective cover thermal stress as claimed in claim 1, it is characterized in that, in at least top multilayer proofing cover, the wall of every layer of protective cover comprises the outer wall and inner layer wall that separate diametrically, and this outer wall and inner layer wall all form openend at the upper limb of this protective cover and lower edge and can circulate between described outer wall and inner layer wall to make air.
6. can reduce the injection type burner of protective cover thermal stress as claimed in claim 5, it is characterized in that, the wall of all layer protective covers comprises above-mentioned outer wall and inner layer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520193652.1U CN204678327U (en) | 2015-04-01 | 2015-04-01 | The injection type burner of protective cover thermal stress can be reduced |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520193652.1U CN204678327U (en) | 2015-04-01 | 2015-04-01 | The injection type burner of protective cover thermal stress can be reduced |
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| CN204678327U true CN204678327U (en) | 2015-09-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791773A (en) * | 2015-04-01 | 2015-07-22 | 深圳智慧能源技术有限公司 | Ejecting type combustion device capable of reducing thermal stress of protective covers |
| WO2016154984A1 (en) * | 2015-04-01 | 2016-10-06 | 深圳智慧能源技术有限公司 | Ejection-type combustion apparatus capable of reducing protective-guard thermal stress |
-
2015
- 2015-04-01 CN CN201520193652.1U patent/CN204678327U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791773A (en) * | 2015-04-01 | 2015-07-22 | 深圳智慧能源技术有限公司 | Ejecting type combustion device capable of reducing thermal stress of protective covers |
| WO2016154984A1 (en) * | 2015-04-01 | 2016-10-06 | 深圳智慧能源技术有限公司 | Ejection-type combustion apparatus capable of reducing protective-guard thermal stress |
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