WO2020140384A1 - Gradual combustion type fire plate combustor - Google Patents
Gradual combustion type fire plate combustor Download PDFInfo
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- WO2020140384A1 WO2020140384A1 PCT/CN2019/089533 CN2019089533W WO2020140384A1 WO 2020140384 A1 WO2020140384 A1 WO 2020140384A1 CN 2019089533 W CN2019089533 W CN 2019089533W WO 2020140384 A1 WO2020140384 A1 WO 2020140384A1
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- fire
- hole
- top plate
- piece
- burner according
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
- F23D14/045—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with a plurality of burner bars assembled together, e.g. in a grid-like arrangement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
- F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
- F23D14/586—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits formed by a set of sheets, strips, ribbons or the like
Definitions
- the invention relates to the field of fire exhaust burners.
- Fire row burners are usually applied to heating, hot water, and steam supply devices such as modular furnaces, wall-hung boilers, water heaters, and steam generators. They usually include a base and a number of fire pieces arranged on the base in parallel. The nozzles are aligned, and the nozzles inject gas into the gas channel of the flare. In this process, through the principle of injection, the surrounding air can be driven into the gas channel to mix with the gas, and then the mixed gas is discharged from the fire hole of the flare. To burn.
- the emission of nitrogen oxides and carbon monoxide depends on the adequacy of the combustion of gas, which can effectively reduce the emissions of nitrogen oxides and carbon monoxide.
- the traditional single nozzle fire exhaust burner is difficult to ensure the accurate mixing ratio of oxygen and gas, so it is difficult to control the emissions of nitrogen oxides and carbon monoxide.
- high-precision electronic control systems are used to control gas and air to be pre-mixed at a full pre-mixed ratio. Mixed full premixed burner, natural combustion is sufficient, less chemical incomplete combustion loss, high thermal efficiency, nitrogen oxide emissions can be achieved ⁇ 30mg/ m3, carbon monoxide ⁇ 95mg/m3, the emission completely meets the requirements.
- the full premix burner can fully meet the air pollution emission standards of the new boiler in terms of energy saving and environmental protection, in order to ensure the stability of the full premix burn, it is necessary to accurately control the gas and air at the same time, which is extremely difficult High nonlinear control.
- the proportion of gas and air is not allowed to be controlled. Two situations will occur: if the premixed air is insufficient and there is no secondary air supply, it is anoxic combustion, and carbon monoxide emissions will increase significantly This is one of the reasons why most fully premixed boilers currently have poor energy-saving effects in actual use: if there is too much premixed air, it is over-premixed and it is prone to deflagration during ignition.
- the flame stabilization problem of full premixed combustion is another problem. It is difficult to stabilize the flame with the mechanically processed fire hole structure. Almost all premixed burners in the world use high temperature resistant metal fiber mesh to wrap the fire hole surface. This method of flame stabilization is very effective, but the cost is high and the service life is short. It is an expensive wearing part. In order to prevent the metal fiber braid from being blocked and affecting the combustion, it is necessary to strictly filter the gas and air. Treatment, which not only increases the operating cost of the boiler, but also affects the stability of the air-fuel ratio. The structure of the head is relatively complicated and heavy to prevent the occurrence of flashback, and there will be greater noise at high pressure and high load are the disadvantages of the full premix burner.
- the object of the present invention is to provide a flame burning burner capable of effectively reducing the emissions of nitrogen oxides and carbon monoxide, energy saving and environmental protection.
- a flame burning burner includes a base and a fire piece arranged on the base.
- the fire piece has a gas channel inside, and a fire hole communicating with the gas channel is arranged on the top plate of the fire piece.
- the left part and the right part of the top plate each have a guide part inclined upward from the inside to the outside, the fire hole is provided on the guide part, and the fire hole extends laterally to the side of the fire piece Ran burning holes are formed on the board.
- the vertical cross-section of the top plate has a "V" shape, and the fire holes on the two guides are spaced apart from the horizontal center line of the top plate.
- the angle between the guide portion and the horizontal plane is 30° to 45°.
- the top plate is symmetrical with respect to its vertical center plane.
- the fire hole has a laterally elongated shape and extends laterally to the side plate of the fire piece to form the flame hole.
- the number of the fire holes is several and distributed along the front and back directions of the fire piece.
- the top plate of the fire piece is also provided with flame stabilization holes matching the gas passage.
- the top plate has a plurality of fire hole groups, and each fire hole group includes a plurality of fire holes arranged from front to back, and the flame stabilizing hole is located between each two adjacent fire hole groups.
- the fire holes in each fire hole group are evenly distributed along the front-rear direction.
- the number of the flame pieces is several and distributed on the base in the left-right direction, and two adjacent flame pieces are separated by a distance to form an air supplement channel.
- the beneficial effects of the present invention are:
- the fire hole is provided on the guide portion, and the fire hole extends laterally to the fire
- the flaring holes are formed on the side plate of the sheet.
- the mixed gas of gas and air can form an oblique upward air flow through the guide part.
- an arc flame can be formed.
- the outer side of the arc flame can naturally form an air flow vortex. It can send a small amount of uncooled high-temperature exhaust gas back to the flame for re-combustion under the action of high temperature, which is a high-efficiency application that uses Ran Ran technology to effectively reduce the emissions of nitrogen oxides and carbon monoxide.
- the advantages of high-temperature micro-circulation There is no heat loss.
- Figure 1 is an overall structural diagram of the present invention
- FIG. 2 is a partially enlarged view of part A in FIG. 1;
- FIG. 3 is a schematic diagram of the working state of the upper part of the present invention.
- a flaring type fire exhaust burner includes a base 10 and a fire piece 20 provided on the base 10, the fire piece 20 has a gas passage 21 inside, and the fire piece 20 is provided on the top plate There is a fire hole 22 communicating with the gas passage 21, and the left and right parts of the top plate have guide portions 23 inclined upward from the inner side to the outer side, the fire hole 22 is provided on the guide portion 23, fire The hole 22 extends laterally to the side plate of the flame piece 20 to form a burning hole 24.
- the fire hole 22 is provided on the guide portion 23, and the fire hole 22 extends laterally to the A combustion hole 24 is formed on the side plate, and the mixed gas of gas and air can form an oblique upward air flow through the guide portion 23, and after ignition, an arc flame can be formed.
- the outer side of the arc flame can naturally form an air flow vortex. It can send a small amount of uncooled high-temperature exhaust gas back to the flame for re-combustion under the action of high temperature, which is a high-efficiency application that uses Ran Ran technology to effectively reduce the emissions of nitrogen oxides and carbon monoxide.
- the advantages of high-temperature micro-circulation There is no heat loss.
- the base 10 is usually provided with a nozzle and a gas supply channel, and the nozzle is spaced up and down from the fire piece 20, and the gas can be sprayed from the nozzle into the fire piece 20. In this process, the gas flow formed by the gas can carry air into the fire piece 20 to achieve the pre-
- the vertical cross section of the top plate is in a "V" shape, and the fire holes 22 in the two guide portions 23 are spaced apart from the horizontal center line of the top plate, which can ensure the formation of obliquely upward airflow and ensure the formation of microcirculation.
- the angle of the guide portion 23 with respect to the horizontal plane is 30° to 45°, which can take into account the combustion of gas and the generation of microcirculation, and has a better combustion effect.
- the top plate is bilaterally symmetrical with respect to its vertical center plane, so that the mixed gas can flow uniformly to both sides, ensure the uniformity of combustion, avoid excessive combustion of the mixed gas on one side, and cause insufficient combustion, which can effectively reduce nitrogen oxidation Emissions of chemicals and carbon monoxide.
- the fire hole 22 has a laterally elongated shape and extends laterally to the side plate of the fire piece 20 to form a combustion hole 24, so that the inclined up and down airflow can be smoothly discharged through the fire hole 22, reducing the obstruction of the mixed gas To ensure full combustion.
- the number of the fire holes 22 is several and distributed along the front and back direction of the fire piece 20.
- the top plate of the fire piece 20 is also provided with flame stabilization holes 25 matching the gas passage 21.
- the flame stabilization holes 25 The flame transferability can be used to ensure that the fire row burner is easy to ignite and will not leave the flame during normal operation.
- the flame stabilizing hole 25 is divided into several groups, and each group is included on the guide portion 23 in the left-right direction Several round hole-shaped flame stabilizing holes 25 are evenly arranged.
- the flame stabilizing holes 25 may also adopt other commonly used shapes and distribution methods, which are not limited thereto.
- the top plate has several fire hole groups, each fire hole group includes several fire holes 22 arranged from front to back, and the flame stabilizing hole 25 is located between each two adjacent fire hole groups, thereby enabling the flame stabilizing hole 25 to
- the hole group plays the role of flame stabilization, ensuring that the fire exhaust burner is easy to ignite and work normally.
- the fire holes 22 in each fire hole group are evenly distributed in the front-rear direction, so that the flame of the entire burner is uniformly equal in height, which is also beneficial to the reduction and stability of the emission of nitrogen oxides and carbon monoxide.
- the number of fire pieces 20 is several and is distributed on the base 10 in the left-right direction. Each adjacent fire piece 20 is separated by a distance to form an air supplement channel 30, which can supplement the air for the combustion of gas. It can also exert a good cooling and cooling effect on the fire piece 20.
Abstract
A gradual combustion type fire plate combustor, comprising a base (10) and fire plates (20) provided on the base (10), wherein the interior of each fire plate (20) comprises a gas channel (21); fire holes (22) communicated with the gas channel (21) are provided on the top plate of the fire plate (20); the left and right side of the top plate both comprise guide parts (23) that are inclined upwards from inside to outside; the fire holes (22) are provided on the guide parts (23); each fire hole (22) is lateral elongated and laterally extends to the side plate of the fire plate (20) to form a gradual combustion hole (24). The combustor can form high-temperature microcirculation, reduce the emission of nitrogen oxide and carbon monoxide, and have no heat energy loss.
Description
技术领域Technical field
本发明涉及火排燃烧器领域。The invention relates to the field of fire exhaust burners.
背景技术Background technique
火排燃烧器通常应用在模块炉、壁挂炉、热水器、蒸汽发生器等供暖、供热水、供蒸汽的装置上，通常包括底座和若干并列设置在底座上的火片，底座上设置与火片对齐的喷嘴，喷嘴向火片的燃气通道内喷射燃气，在此过程中，通过喷射引射原理，能够带动周围的空气进入燃气通道与燃气混合，之后混合气体从火片的火孔排出而进行燃烧。Fire row burners are usually applied to heating, hot water, and steam supply devices such as modular furnaces, wall-hung boilers, water heaters, and steam generators. They usually include a base and a number of fire pieces arranged on the base in parallel. The nozzles are aligned, and the nozzles inject gas into the gas channel of the flare. In this process, through the principle of injection, the surrounding air can be driven into the gas channel to mix with the gas, and then the mixed gas is discharged from the fire hole of the flare. To burn.
近年来，由于环保问题越来越严峻，北京于2017年4月1日正式施行最严格的锅炉氮氧化物排放标准，要求新建锅炉氮氧化物排放量在基准含氧量为3.5%的折算值＜30mg/m³、同时一氧化碳排放量折算值＜95
mg/m³，随后多个城市和地区陆续颁布并实施北京标准。燃烧器作为锅炉的主要供热设备，是锅炉大气污染排放的主要来源，选用更低氮氧化物排放量的燃烧器是降低锅炉大气污染排放的主要手段，最大限度的节约能源也是燃烧器的重要性能指标。In recent years, due to the increasingly serious environmental protection issues, Beijing officially implemented the strictest boiler nitrogen oxide emission standards on April 1, 2017, requiring new boilers to emit nitrogen oxides at a conversion value of 3.5% of the baseline oxygen content ＜30mg/m³, while the converted value of carbon monoxide emission＜95
mg/m³, many cities and regions have subsequently promulgated and implemented Beijing standards. As the main heating equipment of the boiler, the burner is the main source of air pollution emissions from the boiler. The selection of burners with lower nitrogen oxide emissions is the main means to reduce the air pollution emissions of the boiler. The maximum energy saving is also important for the burner. Performance.
氮氧化物和一氧化碳的排放量取决于燃气燃烧的充分与否，燃气充分燃烧则能够有效减少氮氧化物和一氧化碳的排放。传统的单喷嘴火排燃烧器难以保证氧气与燃气的准确混合比例，因此难以控制氮氧化物和一氧化碳的排放量，目前出现了通过高精密电子控制系统控制燃气和空气按全预混比例进行预混的全预混燃烧器，燃烧自然充分，化学不完全燃烧损失较少，热效率高，氮氧化物排放量能做到＜30mg/
m³，一氧化碳＜95mg/m³，排放量完全满足要求。尽管全预混燃烧器在节能、环保方面能完全满足新建锅炉的大气污染排放标准，但是为保证全预混燃烧的稳定性，就要同时对燃气和空气进行精准的比例控制，这是难度极高的非线性控制。全预混燃烧器在燃烧过程中，燃气和空气的比例控制不准会发生两种情况：如果预混空气不足，又没有二次空气补给，那就是缺氧燃烧，一氧化碳排放量将会大幅上升，这就是目前大多数全预混锅炉在实际的使用中节能效果不佳的原因之一：如果预混空气过量，那就是过预混，点火时容易爆燃。全预混燃烧的稳焰问题是另一个难题，采用机械方法加工的火孔结构很难稳定火焰，几乎全世界的全预混燃烧器都是采用耐高温的金属纤维编制网包裹火孔表面进行稳焰的，这种微孔稳焰的方法很有效，但是成本很高，且使用寿命短，是昂贵的易损件，为了防止金属纤维编制网堵塞影响燃烧，就必须对燃气严格过滤和空气滤清处理，这不仅增加了锅炉的运行成本，而且会影响到空燃比的稳定性。头部结构比较复杂和笨重以防止发生回火现象，在高压、高负荷时会有较大的噪音都是全预混燃烧器的缺点。The emission of nitrogen oxides and carbon monoxide depends on the adequacy of the combustion of gas, which can effectively reduce the emissions of nitrogen oxides and carbon monoxide. The traditional single nozzle fire exhaust burner is difficult to ensure the accurate mixing ratio of oxygen and gas, so it is difficult to control the emissions of nitrogen oxides and carbon monoxide. At present, high-precision electronic control systems are used to control gas and air to be pre-mixed at a full pre-mixed ratio. Mixed full premixed burner, natural combustion is sufficient, less chemical incomplete combustion loss, high thermal efficiency, nitrogen oxide emissions can be achieved <30mg/
m³, carbon monoxide <95mg/m³, the emission completely meets the requirements. Although the full premix burner can fully meet the air pollution emission standards of the new boiler in terms of energy saving and environmental protection, in order to ensure the stability of the full premix burn, it is necessary to accurately control the gas and air at the same time, which is extremely difficult High nonlinear control. During the combustion process of the full premixed burner, the proportion of gas and air is not allowed to be controlled. Two situations will occur: if the premixed air is insufficient and there is no secondary air supply, it is anoxic combustion, and carbon monoxide emissions will increase significantly This is one of the reasons why most fully premixed boilers currently have poor energy-saving effects in actual use: if there is too much premixed air, it is over-premixed and it is prone to deflagration during ignition. The flame stabilization problem of full premixed combustion is another problem. It is difficult to stabilize the flame with the mechanically processed fire hole structure. Almost all premixed burners in the world use high temperature resistant metal fiber mesh to wrap the fire hole surface. This method of flame stabilization is very effective, but the cost is high and the service life is short. It is an expensive wearing part. In order to prevent the metal fiber braid from being blocked and affecting the combustion, it is necessary to strictly filter the gas and air. Treatment, which not only increases the operating cost of the boiler, but also affects the stability of the air-fuel ratio. The structure of the head is relatively complicated and heavy to prevent the occurrence of flashback, and there will be greater noise at high pressure and high load are the disadvantages of the full premix burner.
发明内容Summary of the invention
为了解决上述问题，本发明的目的在于提供一种能够有效减少氮氧化物和一氧化碳的排放量、节能环保的冉燃式火排燃烧器。In order to solve the above-mentioned problems, the object of the present invention is to provide a flame burning burner capable of effectively reducing the emissions of nitrogen oxides and carbon monoxide, energy saving and environmental protection.
本发明为解决其技术问题而采用的技术方案是：The technical solutions adopted by the present invention to solve its technical problems are:
一种冉燃式火排燃烧器，包括底座和设置在底座上的火片，所述火片的内部具有燃气通道，火片的顶板上设置有与所述燃气通道相连通的火孔，所述顶板的左部和右部均具有自内侧向外侧朝上倾斜的导引部，所述的火孔设置在所述的导引部上，所述的火孔侧向延伸至火片的侧板上而形成冉燃孔。A flame burning burner includes a base and a fire piece arranged on the base. The fire piece has a gas channel inside, and a fire hole communicating with the gas channel is arranged on the top plate of the fire piece. The left part and the right part of the top plate each have a guide part inclined upward from the inside to the outside, the fire hole is provided on the guide part, and the fire hole extends laterally to the side of the fire piece Ran burning holes are formed on the board.
优选的，所述顶板的竖向截面呈“V”字形，两导引部上的火孔均与顶板的横向中心线间隔一距离。Preferably, the vertical cross-section of the top plate has a "V" shape, and the fire holes on the two guides are spaced apart from the horizontal center line of the top plate.
所述的导引部相对水平面的夹角为30°至45°。The angle between the guide portion and the horizontal plane is 30° to 45°.
所述的顶板相对其竖向的中心面左右对称。The top plate is symmetrical with respect to its vertical center plane.
优选的，所述的火孔呈侧向的长条形并侧向延伸至火片的侧板上而形成所述的冉燃孔。Preferably, the fire hole has a laterally elongated shape and extends laterally to the side plate of the fire piece to form the flame hole.
优选的，所述的火孔数量为若干个并沿火片的前后方向分布，火片的顶板上还设置有与所述燃气通道相适配的稳焰孔。Preferably, the number of the fire holes is several and distributed along the front and back directions of the fire piece. The top plate of the fire piece is also provided with flame stabilization holes matching the gas passage.
优选的，所述的顶板上具有若干火孔组，各火孔组包含有自前向后排列的若干火孔，所述的稳焰孔位于各两相邻火孔组之间。Preferably, the top plate has a plurality of fire hole groups, and each fire hole group includes a plurality of fire holes arranged from front to back, and the flame stabilizing hole is located between each two adjacent fire hole groups.
优选的，各火孔组内的火孔沿前后方向均匀分布。Preferably, the fire holes in each fire hole group are evenly distributed along the front-rear direction.
优选的，所述的火片的数量为若干个并在底座上沿左右方向分布，各两相邻火片之间相隔一距离而形成空气补充通道。Preferably, the number of the flame pieces is several and distributed on the base in the left-right direction, and two adjacent flame pieces are separated by a distance to form an air supplement channel.
本发明的有益效果是：本发明中，由于顶板的左部和右部均具有自内侧向外侧朝上倾斜的导引部，火孔设置在导引部上，并且火孔侧向延伸至火片的侧板上而形成冉燃孔，燃气与空气的混合气体能够经由导引部形成斜向上的气流，点燃后能够形成弧形火焰，弧形火焰的外侧能够自然形成气流旋涡，在气流漩涡的作用下能够将少量未经冷却的高温废气送回到火焰中进行再燃烧，形成高温微循环，这是利用冉然技术有效减少氮氧化物和一氧化碳排放量的高效应用，高温微循环的优点是没有热能损失。The beneficial effects of the present invention are: In the present invention, since the left and right portions of the top plate have guide portions inclined upward from the inside to the outside, the fire hole is provided on the guide portion, and the fire hole extends laterally to the fire The flaring holes are formed on the side plate of the sheet. The mixed gas of gas and air can form an oblique upward air flow through the guide part. After ignition, an arc flame can be formed. The outer side of the arc flame can naturally form an air flow vortex. It can send a small amount of uncooled high-temperature exhaust gas back to the flame for re-combustion under the action of high temperature, which is a high-efficiency application that uses Ran Ran technology to effectively reduce the emissions of nitrogen oxides and carbon monoxide. The advantages of high-temperature micro-circulation There is no heat loss.
附图说明BRIEF DESCRIPTION
下面结合附图和具体实施方式对本发明作进一步详细的说明。The present invention will be further described in detail below with reference to the drawings and specific embodiments.
图1是本发明的整体结构图；Figure 1 is an overall structural diagram of the present invention;
图2是图1中A部分的局部放大图；FIG. 2 is a partially enlarged view of part A in FIG. 1;
图3是本发明上部的工作状态示意图。3 is a schematic diagram of the working state of the upper part of the present invention.
具体实施方式detailed description
参照图1至图3，一种冉燃式火排燃烧器，包括底座10和设置在底座10上的火片20，所述火片20的内部具有燃气通道21，火片20的顶板上设置有与所述燃气通道21相连通的火孔22，所述顶板的左部和右部均具有自内侧向外侧朝上倾斜的导引部23，火孔22设置在导引部23上，火孔22侧向延伸至火片20的侧板上而形成冉燃孔24。本发明中，由于顶板的左部和右部均具有自内侧向外侧朝上倾斜的导引部23，火孔22设置在导引部23上，并且火孔22侧向延伸至火片20的侧板上而形成冉燃孔24，燃气与空气的混合气体能够经由导引部23形成斜向上的气流，点燃后能够形成弧形火焰，弧形火焰的外侧能够自然形成气流旋涡，在气流漩涡的作用下能够将少量未经冷却的高温废气送回到火焰中进行再燃烧，形成高温微循环，这是利用冉然技术有效减少氮氧化物和一氧化碳排放量的高效应用，高温微循环的优点是没有热能损失。Referring to FIGS. 1 to 3, a flaring type fire exhaust burner includes a base 10 and a fire piece 20 provided on the base 10, the fire piece 20 has a gas passage 21 inside, and the fire piece 20 is provided on the top plate There is a fire hole 22 communicating with the gas passage 21, and the left and right parts of the top plate have guide portions 23 inclined upward from the inner side to the outer side, the fire hole 22 is provided on the guide portion 23, fire The hole 22 extends laterally to the side plate of the flame piece 20 to form a burning hole 24. In the present invention, since the left portion and the right portion of the top plate each have the guide portion 23 inclined upward from the inside to the outside, the fire hole 22 is provided on the guide portion 23, and the fire hole 22 extends laterally to the A combustion hole 24 is formed on the side plate, and the mixed gas of gas and air can form an oblique upward air flow through the guide portion 23, and after ignition, an arc flame can be formed. The outer side of the arc flame can naturally form an air flow vortex. It can send a small amount of uncooled high-temperature exhaust gas back to the flame for re-combustion under the action of high temperature, which is a high-efficiency application that uses Ran Ran technology to effectively reduce the emissions of nitrogen oxides and carbon monoxide. The advantages of high-temperature micro-circulation There is no heat loss.
底座10上通常设置喷嘴和供气通道，喷嘴与火片20上下间隔一距离，燃气能够从喷嘴喷射到火片20内，在此过程中燃气形成的气流能够携带空气进入火片20内实现预混，这些都是本领域中的常用结构，在此不另作详述。The base 10 is usually provided with a nozzle and a gas supply channel, and the nozzle is spaced up and down from the fire piece 20, and the gas can be sprayed from the nozzle into the fire piece 20. In this process, the gas flow formed by the gas can carry air into the fire piece 20 to achieve the pre- These are all common structures in the art, and will not be described in detail here.
所述顶板的竖向截面呈“V”字形，两导引部23上的火孔22均与顶板的横向中心线间隔一距离，这样能够确保形成斜向上的气流，保证微循环的形成。The vertical cross section of the top plate is in a "V" shape, and the fire holes 22 in the two guide portions 23 are spaced apart from the horizontal center line of the top plate, which can ensure the formation of obliquely upward airflow and ensure the formation of microcirculation.
本发明中，导引部23相对水平面的夹角为30°至45°，这样能够兼顾燃气的燃烧和微循环的产生，具有较好的燃烧效果。In the present invention, the angle of the guide portion 23 with respect to the horizontal plane is 30° to 45°, which can take into account the combustion of gas and the generation of microcirculation, and has a better combustion effect.
本发明中，顶板相对其竖向的中心面左右对称，这样使得混合气体能够均匀的向两侧流动，保证燃烧的均匀度，避免一侧混合气体过量而导致燃烧不充分，能够有效降低氮氧化物和一氧化碳的排放量。In the present invention, the top plate is bilaterally symmetrical with respect to its vertical center plane, so that the mixed gas can flow uniformly to both sides, ensure the uniformity of combustion, avoid excessive combustion of the mixed gas on one side, and cause insufficient combustion, which can effectively reduce nitrogen oxidation Emissions of chemicals and carbon monoxide.
火孔22呈侧向的长条形并侧向延伸至火片20的侧板上而形成冉燃孔24，这样使得倾斜上下的气流能够顺利的经由火孔22排出，减少对混合气体的阻挡，保证燃烧的充分。The fire hole 22 has a laterally elongated shape and extends laterally to the side plate of the fire piece 20 to form a combustion hole 24, so that the inclined up and down airflow can be smoothly discharged through the fire hole 22, reducing the obstruction of the mixed gas To ensure full combustion.
火孔22数量为若干个并沿火片20的前后方向分布，火片20的顶板上还设置有与燃气通道21相适配的稳焰孔25，当燃气发生离焰时，稳焰孔25能够利用火焰的传递性，保证本火排燃烧器易于点火和正常工作时不会离焰，本实施例中，稳焰孔25分成若干组，各组均包括在导引部23上沿左右方向均匀设置的若干圆孔状的稳焰孔25，当然，实际应用中，稳焰孔25也可采用其他常用的形状和分布方式，并不局限于此。The number of the fire holes 22 is several and distributed along the front and back direction of the fire piece 20. The top plate of the fire piece 20 is also provided with flame stabilization holes 25 matching the gas passage 21. When the gas leaves the flame, the flame stabilization holes 25 The flame transferability can be used to ensure that the fire row burner is easy to ignite and will not leave the flame during normal operation. In this embodiment, the flame stabilizing hole 25 is divided into several groups, and each group is included on the guide portion 23 in the left-right direction Several round hole-shaped flame stabilizing holes 25 are evenly arranged. Of course, in practical applications, the flame stabilizing holes 25 may also adopt other commonly used shapes and distribution methods, which are not limited thereto.
顶板上具有若干火孔组，各火孔组包含有自前向后排列的若干火孔22，稳焰孔25位于各两相邻火孔组之间，由此使得稳焰孔25能够对各火孔组起到稳焰作用，保证本火排燃烧器易于点火和正常工作。The top plate has several fire hole groups, each fire hole group includes several fire holes 22 arranged from front to back, and the flame stabilizing hole 25 is located between each two adjacent fire hole groups, thereby enabling the flame stabilizing hole 25 to The hole group plays the role of flame stabilization, ensuring that the fire exhaust burner is easy to ignite and work normally.
本发明中，各火孔组内的火孔22沿前后方向均匀分布，使得整个燃烧器的火焰均匀等高，也有利于氮氧化物和一氧化碳排放量的降低和稳定。火片20的数量为若干个并在底座10上沿左右方向分布，各两相邻火片20之间相隔一距离而形成空气补充通道30，这样能够对燃气的燃烧起到补充空气的作用，也能够对火片20起到良好的降温冷却效果。In the present invention, the fire holes 22 in each fire hole group are evenly distributed in the front-rear direction, so that the flame of the entire burner is uniformly equal in height, which is also beneficial to the reduction and stability of the emission of nitrogen oxides and carbon monoxide. The number of fire pieces 20 is several and is distributed on the base 10 in the left-right direction. Each adjacent fire piece 20 is separated by a distance to form an air supplement channel 30, which can supplement the air for the combustion of gas. It can also exert a good cooling and cooling effect on the fire piece 20.
以上所述仅为本发明的优先实施方式，只要以基本相同手段实现本发明目的的技术方案都属于本发明的保护范围之内。The above is only a preferred embodiment of the present invention, as long as the technical solutions for achieving the object of the present invention by basically the same means fall within the protection scope of the present invention.
Claims (9)
- 一种冉燃式火排燃烧器，包括底座（10）和设置在底座（10）上的火片（20），所述火片（20）的内部具有燃气通道（21），火片（20）的顶板上设置有与所述燃气通道（21）相连通的火孔（22），其特征在于：所述顶板的左部和右部均具有自内侧向外侧朝上倾斜的导引部（23），所述的火孔（22）设置在所述的导引部（23）上，所述的火孔（22）侧向延伸至火片（20）的侧板上而形成冉燃孔（24）。 A flame burning burner includes a base (10) and a fire piece (20) disposed on the base (10), the fire piece (20) has a gas channel (21) and a fire piece (20) inside ) On the top plate is provided with a fire hole (22) communicating with the gas channel (21), characterized in that: the left and right parts of the top plate have guides inclined upward from the inside to the outside ( 23), the fire hole (22) is provided on the guide portion (23), the fire hole (22) extends laterally to the side plate of the fire piece (20) to form a burning hole (twenty four).
- 根据权利要求1所述的一种冉燃式火排燃烧器，其特征在于：所述顶板的竖向截面呈“V”字形，两导引部（23）上的火孔（22）均与顶板的横向中心线间隔一距离。 A flaring fire exhaust burner according to claim 1, characterized in that the vertical cross section of the top plate is "V" shaped, and the fire holes (22) on the two guide parts (23) are both The horizontal centerline of the top plate is separated by a distance. The
- 根据权利要求2所述的一种冉燃式火排燃烧器，其特征在于：所述的导引部（23）相对水平面的夹角为30°至45°。 A flared fire exhaust burner according to claim 2, characterized in that the angle between the guide portion (23) and the horizontal plane is 30° to 45°. The
- 根据权利要求2所述的一种冉燃式火排燃烧器，其特征在于：所述的顶板相对其竖向的中心面左右对称。 A flaring fire exhaust burner according to claim 2, wherein the top plate is bilaterally symmetrical with respect to its vertical center plane.
- 根据权利要求1所述的一种冉燃式火排燃烧器，其特征在于：所述的火孔（22）呈侧向的长条形并侧向延伸至火片（20）的侧板上而形成所述的冉燃孔（24）。 A flared fire exhaust burner according to claim 1, characterized in that the fire hole (22) has a laterally elongated shape and extends laterally to the side plate of the fire piece (20) Instead, the Ran Ran (24) is formed. The
- 根据权利要求5所述的一种冉燃式火排燃烧器，其特征在于：所述的火孔（22）数量为若干个并沿火片（20）的前后方向分布，火片（20）的顶板上还设置有与所述燃气通道（21）相适配的稳焰孔（25）。 A flaring fire exhaust burner according to claim 5, characterized in that the number of the fire holes (22) is several and distributed along the front and back direction of the fire piece (20), the fire piece (20) The top plate is also provided with a flame stabilizing hole (25) adapted to the gas passage (21). The
- 根据权利要求6所述的一种冉燃式火排燃烧器，其特征在于：所述的顶板上具有若干火孔组，各火孔组包含有自前向后排列的若干火孔（22），所述的稳焰孔（25）位于各两相邻火孔组之间。 A flared fire exhaust burner according to claim 6, characterized in that: the top plate has several fire hole groups, each fire hole group includes several fire holes (22) arranged from front to back, The flame stabilizing hole (25) is located between two adjacent fire hole groups. The
- 根据权利要求7所述的一种冉燃式火排燃烧器，其特征在于：各火孔组内的火孔（22）沿前后方向均匀分布。 A flared fire exhaust burner according to claim 7, characterized in that the fire holes (22) in each fire hole group are evenly distributed in the front-rear direction. The
- 根据权利要求1所述的一种冉燃式火排燃烧器，其特征在于：所述的火片（20）的数量为若干个并在底座（10）上沿左右方向分布，各两相邻火片（20）之间相隔一距离而形成空气补充通道（30）。A flaring type fire exhaust burner according to claim 1, characterized in that: the number of the fire pieces (20) is several and distributed on the base (10) in the left-right direction, two adjacent to each other The fire pieces (20) are separated by a distance to form an air supplement channel (30).
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| CN201910001762.6A CN109695876A (en) | 2019-01-02 | 2019-01-02 | A kind of Ran's combustion fire row combustor |
| CN201910001762.6 | 2019-01-02 |
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| PCT/CN2019/089533 WO2020140384A1 (en) | 2019-01-02 | 2019-05-31 | Gradual combustion type fire plate combustor |
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| CN109695877A (en) * | 2019-01-02 | 2019-04-30 | 刘维 | A kind of two-stage combustion formula fire row combustor |
| CN109695876A (en) * | 2019-01-02 | 2019-04-30 | 刘维 | A kind of Ran's combustion fire row combustor |
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