CN205782920U - Low indole energy burner combustion unit - Google Patents

Low indole energy burner combustion unit Download PDF

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Publication number
CN205782920U
CN205782920U CN201620508266.1U CN201620508266U CN205782920U CN 205782920 U CN205782920 U CN 205782920U CN 201620508266 U CN201620508266 U CN 201620508266U CN 205782920 U CN205782920 U CN 205782920U
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CN
China
Prior art keywords
cone
trunnion
mixing chamber
diffusion
burner
Prior art date
Application number
CN201620508266.1U
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Chinese (zh)
Inventor
穆瑞力
Original Assignee
穆瑞力
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Publication date
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Priority to CN201620508266.1U priority Critical patent/CN205782920U/en
Application granted granted Critical
Publication of CN205782920U publication Critical patent/CN205782920U/en

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Abstract

Low indole energy burner combustion unit, including tubular shell and diffusion trunnion mixing chamber, the front portion of diffusion trunnion mixing chamber is placed in tubular shell, it is characterized in that the front end spreading trunnion mixing chamber is for cone, one cone cover is arranged on cone and shrinks trunnion front, cone shrinks trunnion outer wall and forms air channel, an annulus with cone cover inwall, and secondary air channel connects with air channel, annulus, and a conical burner noz(zle) is fixed on the front end of cone cover.Structure of the present utility model makes combustion gas form twice combustion, and the flame speed of tubular burner noz(zle) ejection is high, causes the abundant agitation in stove so that temperature field in furnace is evenly distributed, and improves rate of heat exchange, the energy-conservation raising of this utility model more than 10%.Oxynitride discharge amount of the present utility model is less than 40 milligrams/every cubic meter emission, much smaller than national standard, effects of energy saving and emission reduction highly significant.

Description

Low indole energy burner combustion unit
Technical field
This utility model relates to the industrial chemical heating furnace burner with fuel gas as fuel.
Background technology
Burner is the device providing heat energy to heating furnace, and a heating furnace arranges multiple burner, and fuel gas makes the temperature in stove reach technological requirement in being ejected into stove by burner nozzle.Fuel element is the critical piece of burner, and a burner is made up of multiple fuel elements, and the fired state of fuel element determines the energy-conservation and reduction of discharging situation of burner or even whole heating furnace.The fuel element air supply line nozzle of existing burner be arranged in parallel with gas pipeline nozzle or communicates in combustion head, combustion gas and air are mixed with air by the ejection combustion gas of respective pipeline front end nozzle outside combustion head, mix after Cheng Weiing, the major defect one of this structure is undercompounding, uneven, and efficiency of combustion is low;Two is that fuel element outlet flame flow velocity is relatively low, and nitrogen molecular time of staying in combustor is long, causes oxynitride high;Three is to accomplish that (optimum proportioning of combustion gas and air is 1 α 1.1 to accurate proportioning, α is stoichiometric factor), when thus causing lack of air, surplus combustion gas is broken down into free carbon, nitrogen, carbon monoxide, combustion gas utilization rate is low, produce substantial amounts of carbon monoxide harmful gas and free carbon discharge simultaneously, when air excess, additional air can be taken away heat and produce the oxynitride discharge of excess, causes heat loss.
Utility model content
nullThe purpose of this utility model is to provide a kind of low indole energy burner combustion unit,As shown in Figure 1,Including tubular shell、Ring flange and diffusion trunnion mixing chamber,Air baffle is connected with ring flange by flange standing screw,Air baffle is used for fixing gas inlet pipe road,Diffusion trunnion mixing chamber is fixed on ring flange,The rear end of diffusion trunnion mixing chamber connects with an air distribution air chamber of burner,The front portion of diffusion trunnion mixing chamber is placed in tubular shell,It is characterized in that the front end spreading trunnion mixing chamber is to contract,Constitute cone and shrink trunnion,One cone cover matched with cone contraction trunnion shape is arranged on cone and shrinks the front of trunnion,Cone shrinks trunnion outer wall and forms air channel, an annulus with cone cover inwall,The outside of diffusion trunnion mixing chamber has secondary air channel to connect with air channel, annulus,One conical burner noz(zle) is fixed on the front end of cone cover,Cone burner noz(zle) shrinks trunnion front at cone and forms tubular secondary combustion chamber.
Further technical scheme includes:
Trunnion mixing chamber is made up of three cones rear to front, and first cone is at the rear portion of diffusion trunnion mixing chamber, by diffusion trunnion mixing chamber rear end forwards reduced diameter;Second cone, at the middle part of diffusion trunnion mixing chamber, is gradually increased by rear forward diameter;The front end exit that 3rd cone spreads trunnion mixing chamber exactly is inwardly shrunk to cone, and its front end exit diameter is less than dissipating trunnion mixing chamber rear end inlet diameter, and cone burner noz(zle) rear end diameter is less than point diameter, in forwards divergent contour.
Structure of the present utility model makes combustion gas form twice combustion, burning for the first time occurs at diffusion trunnion mixing chamber, flame is shunk trunnion ejection by cone, second time burning occurs at tubular secondary combustion chamber, flame is by cone burner noz(zle) ejection, air channel, annulus is made to become negative pressure annulus, the speed air flow in secondary air channel is caused to accelerate, simultaneously, owing to shrinking in cone at diffusion trunnion mixing chamber outlet, the speed making flame spray improves, the two factor makes the flame speed of cone burner noz(zle) ejection, the flame speed 20% of trunnion ejection is shunk higher than cone, thus cause the abundant agitation to furnace heat, temperature field in furnace is evenly distributed, improve rate of heat exchange, the energy-conservation hinge structure of this utility model improves more than 10%;Stoichiometric factor α of the present utility model, close to theoretical value, does not has superfluous oxygen, fundamentally solves the generation of oxynitride.Shown by a small-sized oil refining furnace test, oxynitride discharge amount of the present utility model is less than 25 milligrams/every cubic meter emission, much smaller than state specified standards 40 milligrams/every cubic meter emission, and prior art is 296 milligrams/every cubic meter emission, emission reduction effect highly significant of the present utility model, more energy-conservation than the most traditional burner more than 15%.While another good effect of this utility model is to reduce discharging, temperature in stove does not reduces, and solves current chemical furnace and relies on supplements cold to reduce discharging oxynitride thus affect this difficult problem of in-furnace temperature.
Provide detailed description of the invention of the present utility model below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Accompanying drawing 1 is this utility model front view.
Accompanying drawing 2 is this utility model A A sectional view.
Accompanying drawing 3 uses view for this utility model.
Legend: 1, gas inlet pipe road, 2, diffusion trunnion mixing chamber, 3, air baffle, 4, fixed flange, 5, flange standing screw, 6, secondary air channel, 7, cone shrinks trunnion, 8, tubular secondary combustion chamber, 9, air channel, annulus, 10, cone burner noz(zle), 11, tubular shell, 12, ever-burning flame combustion head, 13, thermocouple, 14, combustion gas input interface, 15, flame-observing hole, 16, fuel chamber, 17, combustion air entrance, 18, secondary air distribution adjusts knob, 19, burner shell, 20, distribution plenum, 21, mounting flange, 22, fuel element outer housing, 23, secondary distribution plenum, 24, cone cover.
Detailed description of the invention
As shown in Figure 1, diffusion trunnion mixing chamber 2 is overall cylindrical, its rear portion is fixed by air baffle 3 and ring flange 4, the rear end of diffusion trunnion mixing chamber 2 connects with a distribution plenum 20, in diffusion trunnion mixing chamber 2, front portion be fixed in tubular shell 11, diffusion trunnion mixing chamber 2 is made up of three cones rear to front (gasmovement direction is front), and first cone is at the rear portion of diffusion trunnion mixing chamber 2, by diffusion trunnion mixing chamber 2 rear end forwards reduced diameter;Second cone, at the middle part of diffusion trunnion mixing chamber 2, is gradually increased by rear forward diameter;The front end exit that 3rd cone spreads trunnion mixing chamber 2 exactly is inwardly shrunk to cone, and its front end exit diameter is less than dissipating trunnion mixing chamber 2 rear end inlet diameter;Cone burner noz(zle) 10 rear end diameter is less than point diameter, in forwards divergent contour.Three conical structures of diffusion trunnion mixing chamber 2 and the diffusion structure of cone burner noz(zle) 10 make combustion gas form the flow process spreading, shrinking, spread, shrink, spread, promote combustion gas and air mix homogeneously, reduce the resistance of motion, increase the getter action of second-time burning, promote the muzzle velocity of second-time burning, shorten nitrogen molecular to be formed at combustor residence time, minimizing oxynitride, raising energy-saving effect.
Uniform 12 secondary air channels 6 communicated with burner secondary distribution plenum 23 in outside at diffusion trunnion mixing chamber 2, cone cover 24 is arranged on cone and shrinks trunnion 7 front, cone shrinks trunnion 7 outer wall and forms air channel, an annulus 9 with cone cover 24 inwall, the secondary air channel 6 in the outside of diffusion trunnion mixing chamber 2 connects with air channel, annulus 9, cone burner noz(zle) rear end 10 is fixing with cone cover 24 front ends to be connected, and shrinks trunnion 7 front end at cone and forms tubular secondary combustion chamber 8.
Accompanying drawing 3 gives a chemical industry burner being made up of 18 previous combustion unit, burner entirety is cylindrical in shape, fuel element is uniformly distributed on its disc, fuel chamber 16 is accessed by the gas inlet pipe road 1 of each fuel element, the front portion of burner is provided with the secondary distribution plenum 23 connected with distribution plenum 20, rear end and the air channel 6 of the diffusion trunnion mixing chamber 2 of fuel element all connect with secondary distribution plenum 23, and external fan passes through combustion air entrance 17, provides air to a distribution plenum 20.

Claims (2)

  1. nullThe lowest indole energy burner combustion unit,Including tubular shell (11)、Ring flange (4) and diffusion trunnion mixing chamber (2),Air baffle (3) is connected with ring flange (4) by flange standing screw (5),Air baffle (3) is used for fixing gas inlet pipe road (1),Diffusion trunnion mixing chamber (2) is fixed on ring flange (4),The rear end of diffusion trunnion mixing chamber (2) connects with an air distribution air chamber (20) of burner,The front portion of diffusion trunnion mixing chamber (2) is placed in tubular shell (11),It is characterized in that the front end spreading trunnion mixing chamber (2) is to contract,Constitute cone and shrink trunnion (7),One cone cover (24) matched with cone contraction trunnion (7) shape is arranged on cone and shrinks trunnion (7) front,Cone shrinks trunnion (7) outer wall and forms air channel, an annulus (9) with cone cover (24) inwall,The outside of diffusion trunnion mixing chamber (2) has secondary air channel (6) to connect with air channel, annulus (9),One conical burner noz(zle) (10) is fixed on the front end of cone cover (24),Cone burner noz(zle) (10) shrinks trunnion (7) front at cone and forms tubular secondary combustion chamber (8).
  2. Low indole energy burner combustion unit the most according to claim 1, it is characterized in that spreading trunnion mixing chamber (2) is made up of three cones rear to front, first cone is at the rear portion of diffusion trunnion mixing chamber (2), by diffusion trunnion mixing chamber (2) rear end forwards reduced diameter;Second cone, at the middle part of diffusion trunnion mixing chamber (2), is gradually increased by rear forward diameter;The front end exit that 3rd cone spreads trunnion mixing chamber (2) exactly is inwardly shrunk to cone, its front end exit diameter is less than dissipating trunnion mixing chamber (2) rear end inlet diameter, cone burner noz(zle) (10) rear end diameter is less than point diameter, in forwards divergent contour.
CN201620508266.1U 2016-05-30 2016-05-30 Low indole energy burner combustion unit CN205782920U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620508266.1U CN205782920U (en) 2016-05-30 2016-05-30 Low indole energy burner combustion unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620508266.1U CN205782920U (en) 2016-05-30 2016-05-30 Low indole energy burner combustion unit

Publications (1)

Publication Number Publication Date
CN205782920U true CN205782920U (en) 2016-12-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620508266.1U CN205782920U (en) 2016-05-30 2016-05-30 Low indole energy burner combustion unit

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105805743A (en) * 2016-05-30 2016-07-27 穆瑞力 Low-nitrogen energy-saving combustion unit of combustor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105805743A (en) * 2016-05-30 2016-07-27 穆瑞力 Low-nitrogen energy-saving combustion unit of combustor
CN105805743B (en) * 2016-05-30 2017-11-10 北京中宇先创能源科技有限公司 Low indole energy burner combustion unit

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GR01 Patent grant
C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20161207

Effective date of abandoning: 20171110

AV01 Patent right actively abandoned