CN202002308U - Three-return-stroke environment-friendly energy-saving hot blast stove - Google Patents
Three-return-stroke environment-friendly energy-saving hot blast stove Download PDFInfo
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Abstract
本实用新型公开了一种三回程环保节能热风炉,热风炉包括:第1层壁体、第2层壁体、第3层壁体、第4层壁体、第5层壁体、第6层壁体、第7层壁体,前7者依次套入互相固定连接;第1层壁体的中部设有第1筒体,第1筒体的外周设有多道呈螺旋状的传热风道,第1筒体通过传热风道与第2层壁体的内壁密封固定连接;第2筒体与第4筒体固定连通,第4筒体与第3层壁体的顶部固定连接,第3筒体与第5筒体固定连通;第2层壁体的顶部设有第1开口,第4筒体设于第1开口内;第2层壁体设于第1层壁体与与第3层壁体之间,第2层壁体通过多道传热风道与第1层壁体固定连接,该产品的换热温度较高,热利用率较高,体积小,热风温度稳定,无切换机构,寿命较长,维修成本较低,购置成本低。
The utility model discloses a three-pass environmentally friendly and energy-saving hot blast furnace, which comprises: a first wall body, a second wall body, a third wall body, a fourth wall body, a fifth wall body, a sixth wall body and a seventh wall body, the first seven walls are sequentially inserted and fixedly connected to each other; a first cylinder body is arranged in the middle of the first wall body, a plurality of spiral heat transfer air ducts are arranged on the outer periphery of the first cylinder body, the first cylinder body is sealed and fixedly connected with the inner wall of the second wall body through the heat transfer air duct; the second cylinder body is fixedly connected with the fourth cylinder body The 4th cylinder is fixedly connected to the top of the 3rd wall body, and the 3rd cylinder is fixedly connected to the 5th cylinder; the top of the 2nd wall body is provided with a 1st opening, and the 4th cylinder is arranged in the 1st opening; the 2nd wall body is arranged between the 1st wall body and the 3rd wall body, and the 2nd wall body is fixedly connected to the 1st wall body through multiple heat transfer ducts. The product has high heat exchange temperature, high heat utilization rate, small size, stable hot air temperature, no switching mechanism, long service life, low maintenance cost and low purchase cost.
Description
技术领域technical field
本实用新型涉及一种热风炉,尤其是一种三回程环保节能热风炉。The utility model relates to a hot blast stove, in particular to a three-pass environment-friendly and energy-saving hot blast stove.
背景技术Background technique
目前,作为热动力机械的热风炉于20世纪70年代末在我国开始广泛应用,它在许多行业已成为电热源和传统蒸汽动力热源的换代产品。At present, as a thermal power machine, hot blast stoves began to be widely used in my country in the late 1970s. It has become a replacement product for electric heat sources and traditional steam power heat sources in many industries.
通过长时间的生产实践,人们已经认识到,只有利用热风作为介质和载体才能更大地提高热利用率和热工作效果。传统电热源和蒸汽热动力在输送过程中往往配置多台循环风机,使之最终还是间接形成热风进行烘干或供暖操作。这种过程显然存在大量浪费能源及造成附属设备过多、工艺过程复杂等诸多缺点。而更大的问题是,这种热源对于那种需要较高温度干燥或烘烤作业的要求,则束手无策。针对这些实际问题经过多年潜心研究,终于研制出深受国内外用户欢迎的JRL系列螺旋翅片管换热间接式热风炉和ZRL系列高净化直接式热风炉。Through long-term production practice, people have realized that only by using hot air as the medium and carrier can the heat utilization rate and thermal work effect be greatly improved. Traditional electric heat sources and steam thermal power are often equipped with multiple circulating fans during the transportation process, so that they will eventually form hot air indirectly for drying or heating operations. This process obviously has many shortcomings such as a large amount of waste of energy, excessive auxiliary equipment, and complicated technological process. The bigger problem is that this kind of heat source is helpless for the kind of requirements that require higher temperature drying or baking operations. After years of painstaking research in response to these practical problems, we finally developed the JRL series spiral fin tube heat exchange indirect hot blast stove and the ZRL series high-purification direct hot blast stove, which are popular with users at home and abroad.
1、直接式高净化热风炉:就是采用燃料直接燃烧,经高净化处理形成热风,而和物料直接接触加热干燥或烘烤。该种方法燃料的消耗量约比用蒸汽式或其他间接加热器减少一半左右。因此,在不影响烘干产品品质的情况下,完全可以使用直接式高净化热风。燃料可分为:①固体燃料,如煤、焦炭。②液体燃料,如柴油、重油③气体燃料,如煤气、天然气、液体气。1. Direct-type high-purification hot air stove: it uses fuel to burn directly, and forms hot air after high-purification treatment, and directly contacts with materials to heat, dry or bake. The fuel consumption of this method is about half that of steam or other indirect heaters. Therefore, direct high-purification hot air can be used without affecting the quality of the dried product. Fuel can be divided into: ① solid fuel, such as coal, coke. ②Liquid fuel, such as diesel oil, heavy oil ③Gaseous fuel, such as gas, natural gas, liquid gas.
燃料经燃烧反应后得到的高温燃烧气体进一步与外界空气接触,混合到某一温度后直接进入干燥室或烘烤房,与被干燥物料相接触,加热、蒸发水分,从而获得干燥产品。为了利用这些燃料的燃烧反应热,必须增设一套燃料燃烧装置。如:燃煤燃烧器、燃油燃烧器、煤气烧嘴等。The high-temperature combustion gas obtained after the combustion reaction of the fuel is further in contact with the outside air, and after mixing to a certain temperature, it directly enters the drying room or baking room, contacts with the material to be dried, heats and evaporates water, and thus obtains a dry product. In order to utilize the combustion reaction heat of these fuels, a set of fuel combustion devices must be added. Such as: coal burners, oil burners, gas burners, etc.
2、间接式热风炉:主要适用于被干燥物料不允许被污染,或应用于温度较低的热敏性物料干燥。如:奶粉、制药、合成树脂、精细化工等。此种加热装置,即是将蒸气、导热油、烟道气等做载体,通过多种形式的热交换器来加热空气。间接式热风炉的最本质问题就是热交换。热交换面积越大,热转换率越高,热风炉的节能效果越好,炉体及换热器的寿命越长。反之,热交换面积的大小也可以从烟气温度上加以识别。烟温越低,热转换率越高,热交换面积就越大。2. Indirect hot air stove: mainly suitable for drying materials that are not allowed to be contaminated, or for drying heat-sensitive materials with low temperature. Such as: milk powder, pharmaceuticals, synthetic resins, fine chemicals, etc. This kind of heating device is to use steam, heat transfer oil, flue gas, etc. as carriers to heat the air through various forms of heat exchangers. The most essential problem of indirect hot blast stove is heat exchange. The larger the heat exchange area, the higher the heat conversion rate, the better the energy saving effect of the hot blast stove, and the longer the life of the furnace body and heat exchanger. Conversely, the size of the heat exchange area can also be identified from the flue gas temperature. The lower the smoke temperature, the higher the heat conversion rate and the larger the heat exchange area.
工作原理可分为蓄热式和换热式两种:蓄热式:按热风炉内部的蓄热体分球式热风炉(简称球炉)和采用格子砖的热风炉,按燃烧方式可以分为顶燃式,内燃式,外燃式等几种。如何提高风温,是业内人士长期研究的方向。常用的办法是混烧高热值燃气,或增加热风炉格子砖的换热面积,或改变格子砖的材质、密度,或改变蓄热体的形状(如蓄热球),以及通过种种方法将煤气和助燃空气预热。缺点:体积大,战地面积大,热风温度不稳定,切换机构多,容易出问题,蓄热体寿命短,维修成本高,购置成本极高。The working principle can be divided into two types: heat storage type and heat exchange type: heat storage type: according to the regenerator inside the hot blast stove, the ball type hot blast stove (referred to as the ball stove) and the hot blast stove using checker bricks can be divided according to the combustion method. There are several kinds of top combustion type, internal combustion type and external combustion type. How to increase the wind temperature is a long-term research direction for people in the industry. The commonly used method is to burn high calorific value gas, or increase the heat exchange area of the checker bricks of the hot blast stove, or change the material and density of the checker bricks, or change the shape of the heat storage body (such as heat storage balls), and use various methods to transfer the gas and combustion air preheating. Disadvantages: large volume, large battlefield area, unstable hot air temperature, many switching mechanisms, prone to problems, short life of heat storage body, high maintenance cost, and extremely high purchase cost.
换热式:主是使用使用耐高温换热器为核心部件,此部件不能使用。金属材质换热器,只能使用耐高温陶瓷换热器,燃气气在燃烧室内充分燃烧,燃烧后的热空气,经过换热器,把热量换给新鲜的冷空气,可使新鲜空气温度达到1000度以上。缺点:换热温度没有蓄热式高,出现较晚,未被普遍使用。Heat exchange type: The main part is to use high temperature resistant heat exchanger as the core component, which cannot be used. Metal heat exchangers can only use high-temperature-resistant ceramic heat exchangers. The gas gas is fully burned in the combustion chamber, and the hot air after combustion passes through the heat exchanger to exchange heat for fresh cold air, which can make the fresh air temperature reach Above 1000 degrees. Disadvantages: The heat exchange temperature is not as high as that of the heat storage type, and it appeared later and has not been widely used.
实用新型内容Utility model content
本实用新型的目的是提供一种结构简单、方便实用、造价较低的三回程环保节能热风炉,不仅经久耐用,安全可靠,而且安装容易、使用范围较广。The purpose of the utility model is to provide a three-pass environment-friendly and energy-saving hot air stove with simple structure, convenient and practical, and low cost, which is not only durable, safe and reliable, but also easy to install and widely used.
为解决上述技术问题,本实用新型的技术方案是:For solving the problems of the technologies described above, the technical solution of the utility model is:
这种三回程环保节能热风炉,包括:入料口,热风炉包括:第1层壁体、第2层壁体、第3层壁体、第4层壁体、第5层壁体、第6层壁体、第7层壁体,前7者依次套入互相固定连接;第1层壁体呈杯子状;第1层壁体的中部设有第1筒体,第1筒体的外周设有多道呈螺旋状的传热风道,第1筒体通过传热风道与第2层壁体的内壁密封固定连接;第1筒体的上部、下部分别与第2筒体、第3筒体固定连接;第2筒体与第4筒体固定连通,第4筒体与第3层壁体的顶部固定连接,第3筒体与第5筒体固定连通;第2层壁体的顶部设有第1开口,第4筒体设于第1开口内;第2层壁体设于第1层壁体与与第3层壁体之间,第2层壁体通过多道传热风道与第1层壁体固定连接,第2层壁体通过多道传热风道与第3层壁体的内壁固定连接;第3层壁体的下端与第5层壁体的下端固定连接,第4层壁体与第3层壁体之间固定连通构成第1散热烟道,第1散热烟道经第1出口与由多块散热片构成的多道垂直烟道固定连通,垂直烟道密封设于第4层壁体与第5层壁体之间;第4层壁体将第3层壁体的上部封闭固定连接,第5层壁体的上端设有第2开口,第5层壁体的外周设有多个烟道管,烟道管的下端与炉基固定连通;第5层壁体通过多个烟道管与第6层壁体固定连接;第6层壁体与炉基之间构成进冷风道,第6层壁体的外周设有多个垂直风道,上端设有进冷风口的第7层壁体经过垂直风道与第6层壁体和炉基固定连接;出风口与第2层壁体和第7层壁体固定连通,出风口对称设于热风炉的两边;入料口与第1层壁体和第7层壁体固定连通;第1层壁体、第2层壁体、第5层壁体、第6层壁体的下端与炉基固定连接。This three-pass environmental protection and energy-saving hot blast stove includes: feed inlet, and the hot blast stove includes: the first layer of wall body, the second layer of wall body, the third layer of wall body, the fourth layer of wall body, the fifth layer of wall body, the The 6th layer of walls and the 7th layer of walls, the first 7 are sequentially inserted into each other and fixedly connected; the first layer of walls is in the shape of a cup; the middle part of the first layer of walls is provided with a first cylinder, and the outer circumference of the first cylinder There are multiple spiral heat transfer air ducts, and the first cylinder body is sealed and fixedly connected with the inner wall of the second wall through the heat transfer air ducts; the upper and lower parts of the first cylinder body are respectively connected to the second cylinder body and the second cylinder body. 3 cylinders are fixedly connected; the 2nd cylinder is fixedly connected with the 4th cylinder, the 4th cylinder is fixedly connected with the top of the 3rd wall, the 3rd cylinder is fixedly connected with the 5th cylinder; the 2nd wall There is a first opening on the top of the top, and the fourth cylinder is set in the first opening; the second wall is set between the first wall and the third wall, and the second wall is passed through multiple channels. The hot air channel is fixedly connected with the first layer of wall, and the second layer of wall is fixedly connected with the inner wall of the third layer of wall through multiple heat transfer air channels; the lower end of the third layer of wall is connected with the lower end of the fifth layer of wall Fixed connection, the wall of the fourth layer and the wall of the third layer are fixedly connected to form the first cooling flue, and the first cooling flue is fixedly connected to the multi-channel vertical flue composed of multiple cooling fins through the first outlet. The vertical flue seal is arranged between the 4th wall and the 5th wall; the 4th wall seals and fixes the upper part of the 3rd wall, and the upper end of the 5th wall is provided with a second opening. The outer periphery of the fifth layer of wall body is provided with a plurality of flue pipes, and the lower end of the flue pipe is fixedly connected with the furnace base; the fifth layer of wall body is fixedly connected with the sixth layer of wall body through a plurality of flue pipes; the sixth layer of wall body A cold air channel is formed between the body and the furnace base. There are multiple vertical air ducts on the outer periphery of the sixth-layer wall body. The base is fixedly connected; the air outlet is fixedly connected with the wall body of the second layer and the wall body of the seventh layer, and the air outlet is symmetrically arranged on both sides of the hot blast stove; the inlet is fixedly connected with the wall body of the first layer and the wall body of the seventh layer; The lower ends of the first-layer wall body, the second-layer wall body, the fifth-layer wall body, and the sixth-layer wall body are fixedly connected to the furnace base.
第1层壁体、第2层壁体、第3层壁体、第4层壁体、第5层壁体、第6层壁体、第7层壁体、第1筒体、第2筒体、第3筒体、第4筒体、第5筒体的横截面形状为圆形或方形;第1层壁体、第2层壁体、第3层壁体、第4层壁体、第5层壁体、第6层壁体、第7层壁体、第1筒体、第2筒体、第3筒体、第4筒体、第5筒体的上部外形呈圆台状,第3筒体的下开口直径比上开口直径小。1st wall, 2nd wall, 3rd wall, 4th wall, 5th wall, 6th wall, 7th wall, 1st cylinder, 2nd cylinder The cross-sectional shape of the body, the third cylinder, the fourth cylinder, and the fifth cylinder is circular or square; the first layer of walls, the second layer of walls, the third layer of walls, the fourth layer of walls, The upper part of the 5th wall, the 6th wall, the 7th wall, the 1st cylinder, the 2nd cylinder, the 3rd cylinder, the 4th cylinder, and the 5th cylinder are in the shape of a conical cone. 3 The diameter of the lower opening of the cylinder is smaller than that of the upper opening.
炉基的两端对称设有排污口。Both ends of the furnace base are symmetrically provided with sewage outlets.
本实用新型的有益效果:The beneficial effects of the utility model:
该实用新型是一种结构简单、方便实用、造价较低的三回程环保节能热风炉,不仅经久耐用、安全可靠、安装容易和使用范围较广。该产品的换热温度较高,热利用率较高,体积小,热风温度稳定,无切换机构,寿命较长,维修成本较低,购置成本低;据申请人所知此热风炉应是本领域的新产品。The utility model is a three-pass environment-friendly and energy-saving hot blast stove with simple structure, convenience and practicality, and low cost. It is not only durable, safe and reliable, easy to install, and has a wide range of applications. This product has high heat exchange temperature, high heat utilization rate, small size, stable hot air temperature, no switching mechanism, long service life, low maintenance cost and low purchase cost; as far as the applicant knows, this hot air stove should be the original new products in the field.
附图说明Description of drawings
下面结合附图和具体实施方式对本实用新型作进一步的说明。Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.
图1是本实用新型的组合剖面结构示意图。Fig. 1 is a combined cross-sectional structure schematic diagram of the utility model.
图2是上风路线和下风路线的结构示意图。Fig. 2 is a structural schematic diagram of the upwind route and the downwind route.
图3是第1层壁体的结构示意图。Fig. 3 is a schematic diagram of the structure of the wall body of the first layer.
图4是第2层壁体的结构示意图。Fig. 4 is a schematic diagram of the structure of the second layer of wall body.
图5是第3层壁体的结构示意图。Fig. 5 is a schematic diagram of the structure of the wall body of the third layer.
图6是第4层壁体的结构示意图。Fig. 6 is a schematic diagram of the structure of the wall body of the fourth layer.
图7是第5层壁体的结构示意图。Fig. 7 is a schematic structural view of the fifth layer of wall body.
图8是第6层壁体的结构示意图。Fig. 8 is a schematic diagram of the structure of the wall body of the sixth layer.
图9是第7层壁体的结构示意图。Fig. 9 is a schematic diagram of the structure of the wall body of the seventh layer.
图10是的第1层壁体与出风口组合的结构示意图。Fig. 10 is a schematic structural view of the combination of the wall body and the air outlet on the first layer.
具体实施方式Detailed ways
根据图1-图10所示,本实用新型主要包括:第1层壁体1、第2层壁体2、第3层壁体3、第4层壁体4、第5层壁体5、第6层壁体6、第7层壁体7、第1筒体8、第2筒体9、第3筒体10、第4筒体11、第5筒体12、出风口13、入料口14、传热风道15、第1散热烟道16、第2散热烟道17、第2出口18、进冷风口19、进冷风道20、第1开口21、烟道管22、垂直烟道23、垂直风道24、上风路线25、下风路线26、炉基27、排污口28、第2开口29、电机30。According to Fig. 1-shown in Fig. 10, the utility model mainly comprises: the 1st
热风炉包括:第1层壁体1、第2层壁体2、第3层壁体3、第4层壁体4、第5层壁体5、第6层壁体6、第7层壁体7,前7者依次套入互相固定连接;第1层壁体1呈杯子状;第1层壁体1的中部设有第1筒体8,第1筒体8的外周设有多道呈螺旋状的传热风道15,第1筒体8通过传热风道15与第2层壁体2的内壁密封固定连接;第1筒体8的上部、下部分别与第2筒体9、第3筒体10固定连接;第2筒体9与第4筒体11固定连通,第4筒体11与第3层壁体3的顶部固定连接,第3筒体10与第5筒体12固定连通;第2层壁体2的顶部设有第1开口21,第4筒体11设于第1开口21内;第2层壁体2设于第1层壁体1与与第3层壁体3之间,第2层壁体2通过多道传热风道15与第1层壁体1固定连接,第2层壁体2通过多道传热风道15与第3层壁体3的内壁固定连接;第3层壁体3的下端与第5层壁体5的下端固定连接,第4层壁体4与第3层壁体3之间固定连通构成第1散热烟道16,第1散热烟道16经第2出口18与由多块散热片构成的多道垂直烟道23固定连通,垂直烟道23密封设于第4层壁体4与第5层壁体5之间;第4层壁体4将第3层壁体3的上部封闭固定连接,第5层壁体5的上端设有第2开口29,第5层壁体5的外周设有多个烟道管22,烟道管22的下端与炉基27固定连通;第5层壁体5通过多个烟道管22与第6层壁体6固定连接;第6层壁体6与炉基27之间构成进冷风道20,第6层壁体6的外周设有多个垂直风道24,上端设有进冷风口19的第7层壁体7经过垂直风道24与第6层壁体6和炉基27固定连接;出风口13与第2层壁体2和第7层壁体7固定连通,出风口13对称设于热风炉的两边;入料口14与第1层壁体1和第7层壁体7固定连通;第1层壁体1、第2层壁体2、第5层壁体5、第6层壁体6的下端与炉基27固定连接。The hot blast stove includes: the first wall 1, the second wall 2, the third wall 3, the fourth wall 4, the fifth wall 5, the sixth wall 6, and the seventh wall Body 7, the first 7 are sequentially inserted and fixedly connected to each other; the first wall body 1 is cup-shaped; the middle part of the first layer wall body 1 is provided with a first cylinder 8, and the outer circumference of the first cylinder 8 is provided with multiple channels A spiral heat transfer air channel 15, the first cylinder body 8 is sealed and fixedly connected with the inner wall of the second wall body 2 through the heat transfer air channel 15; the upper part and the lower part of the first cylinder body 8 are respectively connected to the second cylinder body 9 , the third cylindrical body 10 is fixedly connected; the second cylindrical body 9 is fixedly connected with the fourth cylindrical body 11, the fourth cylindrical body 11 is fixedly connected with the top of the third layer wall body 3, the third cylindrical body 10 is connected with the fifth cylindrical body 12 is fixed and connected; the top of the second layer of wall body 2 is provided with a first opening 21, and the fourth cylinder body 11 is arranged in the first opening 21; the second layer of wall body 2 is arranged on the first layer of wall body 1 and the third layer of Between the wall bodies 3, the wall body 2 of the second layer is fixedly connected with the wall body 1 of the first layer through multiple heat transfer air channels 15, and the wall body 2 of the second layer is connected with the wall body of the third layer through multiple heat transfer air channels 15. The inner wall of the
第1层壁体1、第2层壁体2、第3层壁体3、第4层壁体4、第5层壁体5、第6层壁体6、第7层壁体7、第1筒体8、第2筒体9、第3筒体10、第4筒体11、第5筒体12的横截面形状为圆形或方形;第1层壁体1、第2层壁体2、第3层壁体3、第4层壁体4、第5层壁体5、第6层壁体6、第7层壁体7、第1筒体8、第2筒体9、第3筒体10、第4筒体11、第5筒体12的上部外形呈圆台状,第3筒体10的下开口直径比上开口直径小。The
炉基27的两端对称设有排污口28。Both ends of the furnace base 27 are symmetrically provided with
工作原理:working principle:
第1层壁体1加热后产生的热风,它从第5筒体12底部上升至第3筒体10,经过第1筒体8传到第2筒体9,集中上升到第4筒体11,其进入第4层壁体4后,沿着第4层壁体4的顶部向四周下沉,经过第2出口18进入第5层壁体5内,热风经过第5层壁体5的上部开口再向周围下串,热风传入各根烟道管22后进入炉基27。The hot air generated after the first layer of
炉外的冷风从炉顶部的进冷风口19进入炉内,沿着四周下沉到底部,经过底部的进冷风道20进入第3层壁体3内,其上升经过多道传热风道15进入第2层壁体2内,然后它继续下串到底部,再由两端设有出风口13排出炉外。The cold air outside the furnace enters the furnace from the
风道都是螺旋传热片,密封为0,每层传热片共24片;烟道都是垂直散热片,密封为0,每层散热片共12片;烟道方管分12等分,方管的相距为50mm;风道间相距为70mm,烟道间相距为30mm;风道与烟道都是经过三回程运转完成。The air ducts are all spiral heat transfer fins, the seal is 0, and each layer of heat transfer fins has a total of 24 pieces; the flue is all vertical heat sinks, the seal is 0, and each layer of heat transfer fins has a total of 12 pieces; the flue square tube is divided into 12 equal parts , the distance between square tubes is 50mm; the distance between air ducts is 70mm, and the distance between flue ducts is 30mm; both air ducts and flue ducts are completed through three-pass operation.
Claims (3)
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102121752A (en) * | 2011-03-31 | 2011-07-13 | 卢洲德 | Three-pass environmental protection and energy-saving hot air stove |
CN106196592A (en) * | 2016-05-18 | 2016-12-07 | 横县华能生物质燃料有限公司 | A biomass hot stove system |
-
2011
- 2011-03-31 CN CN2011200916306U patent/CN202002308U/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102121752A (en) * | 2011-03-31 | 2011-07-13 | 卢洲德 | Three-pass environmental protection and energy-saving hot air stove |
CN106196592A (en) * | 2016-05-18 | 2016-12-07 | 横县华能生物质燃料有限公司 | A biomass hot stove system |
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