CN219283380U - A thermal power plant waste heat recovery and utilization system - Google Patents

A thermal power plant waste heat recovery and utilization system Download PDF

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CN219283380U
CN219283380U CN202223292669.1U CN202223292669U CN219283380U CN 219283380 U CN219283380 U CN 219283380U CN 202223292669 U CN202223292669 U CN 202223292669U CN 219283380 U CN219283380 U CN 219283380U
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wall
flue gas
power plant
thermal power
waste heat
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间百涛
李博
任晔
赵景龙
纪骁洋
王日升
张宇
金贺
徐坤
陆宇
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Liaoning Dongfang Power Generation Co ltd
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Abstract

本实用新型公开的属于余热回收技术领域,具体为一种火电厂余热回收利用系统,包括:排烟管,用于对火电厂所产生的高温烟气进行输送、除尘器,用于对高温烟气进行除尘、脱硫塔,用于对高温烟气进行脱硫、换热机构,利用高温烟气对待使用的燃料进行预热,所述排烟管的一端与所述除尘器的进气端相连接,所述除尘器的出气端与所述脱硫塔的进气端通过第一管道相连接,本实用新型通过设置换热机构,具有实现利用高温烟气对待使用的燃料进行预热的作用,通过利用高温烟气对待使用的燃料进行预热,不仅实现了资源利用,还避免了热量的流失,节约了成本,与此同时,通过对待使用的燃料进行预热,还会缩短待使用燃料的燃烧时间。

Figure 202223292669

The utility model disclosed belongs to the technical field of waste heat recovery, and is specifically a waste heat recovery and utilization system of a thermal power plant, comprising: a smoke exhaust pipe for transporting high-temperature flue gas produced by a thermal power plant, and a dust collector for treating high-temperature smoke Gas dedusting, desulfurization tower, used for desulfurization of high-temperature flue gas, heat exchange mechanism, using high-temperature flue gas to preheat the fuel to be used, one end of the exhaust pipe is connected to the inlet end of the dust collector , the gas outlet end of the dust collector is connected with the inlet end of the desulfurization tower through the first pipeline, and the utility model has the function of realizing the preheating of the fuel to be used by using the high-temperature flue gas by setting the heat exchange mechanism. Using high-temperature flue gas to preheat the fuel to be used not only realizes resource utilization, but also avoids heat loss and saves costs. At the same time, preheating the fuel to be used can also shorten the combustion of the fuel to be used time.

Figure 202223292669

Description

一种火电厂余热回收利用系统A thermal power plant waste heat recovery and utilization system

技术领域technical field

本实用新型涉及余热回收技术领域,具体为一种火电厂余热回收利用系统。The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recovery and utilization system of a thermal power plant.

背景技术Background technique

火电厂是利用可燃物(例如煤)作为燃料生产电能的工厂,它的基本生产过程是:燃料在燃烧时加热水生成蒸汽,将燃料的化学能转变成热能,蒸汽压力推动汽轮机旋转,热能转换成机械能,然后汽轮机带动发电机旋转,将机械能转变成电能,而燃料在燃烧的过程中会产生大量的高温烟气。但是现有的大多企业一般是将高温烟气经过一定程度的净化和冷却后排放到空气中,导致热能的大量损失,继而导致锅炉效率降低。因此,发明一种火电厂余热回收利用系统。A thermal power plant is a factory that uses combustibles (such as coal) as fuel to produce electricity. Its basic production process is: when the fuel is burned, water is heated to generate steam, and the chemical energy of the fuel is converted into heat energy. The steam pressure drives the steam turbine to rotate, and the heat energy conversion Then the steam turbine drives the generator to rotate to convert the mechanical energy into electrical energy, and the fuel will produce a large amount of high-temperature smoke during the combustion process. However, most existing enterprises generally discharge high-temperature flue gas into the air after a certain degree of purification and cooling, resulting in a large loss of heat energy, which in turn leads to a reduction in boiler efficiency. Therefore, a thermal power plant waste heat recovery and utilization system is invented.

实用新型内容Utility model content

鉴于上述和/或现有一种火电厂余热回收利用系统中存在的问题,提出了本实用新型。In view of the problems mentioned above and/or in the existing waste heat recovery and utilization system of a thermal power plant, the utility model is proposed.

因此,本实用新型的目的是提供一种火电厂余热回收利用系统,能够解决上述提出现有的问题。Therefore, the purpose of this utility model is to provide a thermal power plant waste heat recovery and utilization system, which can solve the above-mentioned existing problems.

为解决上述技术问题,根据本实用新型的一个方面,本实用新型提供了如下技术方案:In order to solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical solutions:

一种火电厂余热回收利用系统,其包括:A thermal power plant waste heat recovery and utilization system, which includes:

排烟管,用于对火电厂所产生的高温烟气进行输送;The exhaust pipe is used to convey the high-temperature flue gas generated by the thermal power plant;

除尘器,用于对高温烟气进行除尘;Dust collector, used to remove dust from high temperature flue gas;

脱硫塔,用于对高温烟气进行脱硫;Desulfurization tower, used for desulfurization of high-temperature flue gas;

换热机构,利用高温烟气对待使用的燃料进行预热;The heat exchange mechanism uses high-temperature flue gas to preheat the fuel to be used;

所述排烟管的一端与所述除尘器的进气端相连接,所述除尘器的出气端与所述脱硫塔的进气端通过第一管道相连接,所述脱硫塔的出气端固定连接第二管道,且第二管道的一端通过三通接头固定连接两组其上设有电磁阀的第三管道,每组所述第三管道的一端均连接一组换热机构。One end of the exhaust pipe is connected to the inlet end of the dust collector, the gas outlet end of the dust collector is connected to the inlet end of the desulfurization tower through a first pipeline, and the gas outlet end of the desulfurization tower is fixed The second pipeline is connected, and one end of the second pipeline is fixedly connected to two sets of third pipelines with electromagnetic valves on them through a three-way joint, and one end of each set of third pipelines is connected to a set of heat exchange mechanisms.

作为本实用新型所述的一种火电厂余热回收利用系统的一种优选方案,其中:所述换热机构包括:As a preferred solution of a thermal power plant waste heat recovery and utilization system described in the present invention, the heat exchange mechanism includes:

支架;bracket;

用于输送高温烟气的进气组件,且进气组件安装在支架上;The air intake assembly is used to transport high-temperature flue gas, and the air intake assembly is installed on the bracket;

利用进气组件所输送的高温烟气对燃料进行预热的加热组件,且加热组件安装在支架上;A heating component that preheats the fuel by using the high-temperature flue gas delivered by the intake component, and the heating component is installed on the bracket;

用于对预热后的烟气进行输送的输送组件,且输送组件安装在支架上;A conveying assembly for conveying the preheated flue gas, and the conveying assembly is installed on the bracket;

利用输送组件所输送的烟气使加热组件进行旋转的驱动组件,且驱动组件安装在支架上。The driving assembly is used to rotate the heating assembly by using the flue gas conveyed by the conveying assembly, and the driving assembly is installed on the bracket.

作为本实用新型所述的一种火电厂余热回收利用系统的一种优选方案,其中:所述支架包括:As a preferred solution of a thermal power plant waste heat recovery and utilization system described in the present utility model, wherein: the support includes:

底板;floor;

侧板,所述底板的顶部一侧固定安装侧板。The side plate is fixedly installed on the top side of the bottom plate.

作为本实用新型所述的一种火电厂余热回收利用系统的一种优选方案,其中:所述进气组件包括:As a preferred solution of a thermal power plant waste heat recovery and utilization system described in the present utility model, wherein: the air intake assembly includes:

方块,所述方块固定安装在底板的顶部上,且方块的一端内壁固定安装第三管道;a block, the block is fixedly installed on the top of the bottom plate, and a third pipe is fixedly installed on the inner wall of one end of the block;

流通槽,所述方块的内壁开设流通槽;A circulation groove, the inner wall of the box is provided with a circulation groove;

硬管,所述方块的顶端内壁固定安装若干硬管。Hard pipe, several hard pipes are fixedly installed on the inner wall of the top of the box.

作为本实用新型所述的一种火电厂余热回收利用系统的一种优选方案,其中:所述加热组件包括:As a preferred solution of a thermal power plant waste heat recovery and utilization system described in the present invention, wherein: the heating assembly includes:

外筒,所述外筒的底端内壁固定安装若干硬管,且外筒的顶端内壁固定安装进气管;An outer cylinder, a plurality of hard pipes are fixedly installed on the inner wall of the bottom end of the outer cylinder, and an air intake pipe is fixedly installed on the inner wall of the top end of the outer cylinder;

支撑板,所述外筒的两端内壁均固定安装支撑板;Support plates, the inner walls of both ends of the outer cylinder are fixedly installed with support plates;

其材质为黄铜的内筒,所述支撑板的内壁通过轴承转动连接内筒,且内筒的一端内壁固定安装连接板,所述内筒的另一端内壁可拆卸连接筒盖;Its material is brass inner cylinder, the inner wall of the support plate is connected to the inner cylinder by bearing rotation, and the inner wall of one end of the inner cylinder is fixedly installed with the connecting plate, and the inner wall of the other end of the inner cylinder is detachably connected to the cylinder cover;

转轴,所述转轴通过轴承转动连接在侧板上,且转轴的一端固定安装连接板。The rotating shaft is rotatably connected to the side plate through a bearing, and one end of the rotating shaft is fixedly installed with a connecting plate.

作为本实用新型所述的一种火电厂余热回收利用系统的一种优选方案,其中:所述输送组件包括:As a preferred solution of a thermal power plant waste heat recovery and utilization system described in the utility model, wherein: the conveying assembly includes:

固定板,所述固定板固定安装在侧板的顶端一侧上;a fixed plate, the fixed plate is fixedly installed on the top side of the side plate;

气泵,所述气泵固定安装在固定板的顶部上;an air pump, the air pump is fixedly installed on the top of the fixed plate;

进气管,所述气泵的输入端固定安装进气管;An intake pipe, the input end of the air pump is fixedly installed with an intake pipe;

出气管,所述气泵的输出端固定安装出气管。The air outlet pipe is fixedly installed at the output end of the air pump.

作为本实用新型所述的一种火电厂余热回收利用系统的一种优选方案,其中:所述驱动组件包括:As a preferred solution of a thermal power plant waste heat recovery and utilization system described in the utility model, wherein: the drive assembly includes:

密封盒,所述密封盒固定安装在侧板的一侧上,且密封盒的顶端内壁固定安装出气管;A sealing box, the sealing box is fixedly installed on one side of the side plate, and the top inner wall of the sealing box is fixedly installed with an air outlet pipe;

位于密封盒内腔的旋转块,所述旋转块的内壁固定安装转轴;A rotating block located in the inner cavity of the sealed box, the inner wall of the rotating block is fixedly installed with a rotating shaft;

旋转板,所述旋转块的外表面固定安装若干旋转板,且一组旋转板位于出气管的正下方;A rotating plate, a number of rotating plates are fixedly installed on the outer surface of the rotating block, and a group of rotating plates are located directly below the air outlet pipe;

出气孔,所述出气孔开设在密封盒的底端内壁上。An air outlet, the air outlet is provided on the bottom inner wall of the sealed box.

作为本实用新型所述的一种火电厂余热回收利用系统的一种优选方案,其中:所述筒盖为:As a preferred solution of a thermal power plant waste heat recovery and utilization system described in the utility model, wherein: the cylinder cover is:

支撑块,所述内筒的一端内壁固定安装若干支撑块;A support block, a plurality of support blocks are fixedly installed on the inner wall at one end of the inner cylinder;

密封板,所述密封板通过螺丝可拆卸连接在支撑块上。The sealing plate is detachably connected to the supporting block through screws.

作为本实用新型所述的一种火电厂余热回收利用系统的一种优选方案,其中:所述筒盖为:As a preferred solution of a thermal power plant waste heat recovery and utilization system described in the utility model, wherein: the cylinder cover is:

连接柱,所述连接柱插在内筒的一端内壁上,且接柱与内筒之间设有密封圈;A connecting column, the connecting column is inserted on the inner wall of one end of the inner cylinder, and a sealing ring is provided between the connecting column and the inner cylinder;

挡板,所述连接柱的一端固定安装挡板;A baffle, one end of the connecting column is fixedly installed with a baffle;

驱动块,所述驱动块固定安装在挡板上。a driving block, and the driving block is fixedly installed on the baffle.

与现有技术相比:Compared with existing technology:

1.通过设置换热机构,具有实现利用高温烟气对待使用的燃料进行预热的作用,通过利用高温烟气对待使用的燃料进行预热,不仅实现了资源利用,还避免了热量的流失,节约了成本,与此同时,通过对待使用的燃料进行预热,还会缩短待使用燃料的燃烧时间;1. By setting the heat exchange mechanism, it has the function of using high-temperature flue gas to preheat the fuel to be used. By using high-temperature flue gas to preheat the fuel to be used, not only the utilization of resources is realized, but also the loss of heat is avoided. The cost is saved, and at the same time, the combustion time of the fuel to be used is shortened by preheating the fuel to be used;

2.通过使加热组件进行旋转,具有实现使燃料在内筒中进行翻滚的作用,通过使燃料在内筒中进行翻滚,具有使燃料均匀受热的作用,从而会提高燃料的预热效果;2. By rotating the heating assembly, it has the effect of making the fuel tumble in the inner cylinder, and by making the fuel tumble in the inner cylinder, it has the effect of evenly heating the fuel, thereby improving the preheating effect of the fuel;

3.通过设置驱动组件,具有实现利用流动的烟气使加热组件进行旋转的作用,通过利用流动的烟气使加热组件进行旋转,具有降低成本的投入;3. By setting the driving component, it has the function of using the flowing flue gas to make the heating component rotate, and by using the flowing flue gas to rotate the heating component, it has the investment of reducing costs;

4.通过设置输送组件,具有避免预热后的烟气在外筒和内筒之间进行停留,通过避免预热后的烟气在外筒和内筒之间进行停留,从而会避免高温烟气的热量被预热后的烟气吸收,造成热量流失;4. By setting the conveying component, it can avoid the preheated flue gas from staying between the outer cylinder and the inner cylinder, and avoid the high temperature flue gas from staying between the outer cylinder and the inner cylinder. The heat is absorbed by the preheated flue gas, resulting in heat loss;

5.通过设置两组换热机构,具有使两组换热机构进行交替工作的作用,通过使两组换热机构进行交替工作,具有避免出现暂停对高温烟气进行输送的现象。5. By arranging two sets of heat exchange mechanisms, it has the function of making the two sets of heat exchange mechanisms work alternately, and by making the two sets of heat exchange mechanisms work alternately, it can avoid the phenomenon of suspending the transmission of high-temperature flue gas.

附图说明Description of drawings

图1为本实用新型整体结构正视示意图;Fig. 1 is the schematic diagram of front view of the overall structure of the utility model;

图2为本实用新型实施例1换热机构正视示意图;Fig. 2 is a schematic front view of the heat exchange mechanism of Embodiment 1 of the present utility model;

图3为本实用新型图2中A处结构放大示意图;Fig. 3 is the enlarged schematic diagram of the structure at A in Fig. 2 of the present utility model;

图4为本实用新型加热组件局部结构侧视示意图;Fig. 4 is a schematic side view of the local structure of the heating assembly of the utility model;

图5为本实用新型驱动组件侧视示意图;Fig. 5 is a schematic side view of the drive assembly of the present invention;

图6为本实用新型实施例2换热机构正视示意图。Fig. 6 is a schematic front view of the heat exchange mechanism of Embodiment 2 of the present utility model.

图中:排烟管10、除尘器20、第一管道30、脱硫塔40、第二管道50、第三管道60、换热机构70、支架71、底板711、侧板712、进气组件72、方块721、流通槽722、硬管723、加热组件73、外筒731、支撑板732、内筒733、转轴734、筒盖74、密封板741、支撑块742、连接柱746、挡板747、驱动块748、输送组件75、固定板751、气泵752、进气管753、出气管754、驱动组件76、密封盒761、旋转块762、旋转板763、出气孔764。In the figure: smoke exhaust pipe 10, dust collector 20, first pipeline 30, desulfurization tower 40, second pipeline 50, third pipeline 60, heat exchange mechanism 70, bracket 71, bottom plate 711, side plate 712, intake assembly 72 , block 721, circulation groove 722, hard pipe 723, heating assembly 73, outer cylinder 731, support plate 732, inner cylinder 733, rotating shaft 734, cylinder cover 74, sealing plate 741, support block 742, connecting column 746, baffle 747 , driving block 748, conveying assembly 75, fixed plate 751, air pump 752, air inlet pipe 753, air outlet pipe 754, driving assembly 76, sealing box 761, rotating block 762, rotating plate 763, air outlet 764.

具体实施方式Detailed ways

为使本实用新型的目的、技术方案和优点更加清楚,下面将结合附图对本实用新型的实施方式作进一步地详细描述。In order to make the purpose, technical solutions and advantages of the utility model clearer, the implementation of the utility model will be further described in detail below in conjunction with the accompanying drawings.

实施例1:Example 1:

本实用新型提供一种火电厂余热回收利用系统,请参阅图1-图5,包括:排烟管10,用于对火电厂所产生的高温烟气进行输送、除尘器20,用于对高温烟气进行除尘、脱硫塔40,用于对高温烟气进行脱硫、换热机构70,利用高温烟气对待使用的燃料进行预热;The utility model provides a thermal power plant waste heat recovery and utilization system, please refer to Fig. 1-Fig. Flue gas dedusting, desulfurization tower 40, used for desulfurizing high-temperature flue gas, heat exchange mechanism 70, using high-temperature flue gas to preheat the fuel to be used;

排烟管10的一端与除尘器20的进气端相连接,除尘器20的出气端与脱硫塔40的进气端通过第一管道30相连接,脱硫塔40的出气端固定连接第二管道50,且第二管道50的一端通过三通接头固定连接两组其上设有电磁阀的第三管道60,每组第三管道60的一端均连接一组换热机构70;One end of the exhaust pipe 10 is connected to the intake end of the dust collector 20, the gas outlet end of the dust collector 20 is connected to the gas inlet end of the desulfurization tower 40 through the first pipeline 30, and the gas outlet end of the desulfurization tower 40 is fixedly connected to the second pipeline 50, and one end of the second pipeline 50 is fixedly connected to two groups of third pipelines 60 provided with electromagnetic valves through a three-way joint, and one end of each group of third pipelines 60 is connected to a group of heat exchange mechanisms 70;

工作原理:火电厂所产生的高温烟气经过排烟管10流入到除尘器20中进行除尘,除尘后的高温烟气则会经过第一管道30流入到脱硫塔40中进行脱硫,此时,只启动一组电磁阀,以使脱硫后的高温烟气经过对应的第三管道60流入到对应的换热机构70中。Working principle: the high-temperature flue gas produced by the thermal power plant flows into the dust collector 20 through the exhaust pipe 10 for dust removal, and the high-temperature flue gas after dust removal flows into the desulfurization tower 40 through the first pipeline 30 for desulfurization. At this time, Only one set of solenoid valves is activated, so that the desulfurized high-temperature flue gas flows into the corresponding heat exchange mechanism 70 through the corresponding third pipeline 60 .

换热机构70包括:支架71、用于输送高温烟气的进气组件72、利用进气组件72所输送的高温烟气对燃料进行预热的加热组件73、用于对预热后的烟气进行输送的输送组件75、利用输送组件75所输送的烟气使加热组件73进行旋转的驱动组件76;The heat exchange mechanism 70 includes: a bracket 71, an air intake assembly 72 for transporting high-temperature flue gas, a heating assembly 73 for preheating fuel by using the high-temperature flue gas transported by the air intake assembly 72, and a heating assembly 73 for preheating the preheated flue gas. The conveying assembly 75 for conveying the gas, and the driving assembly 76 for rotating the heating assembly 73 by utilizing the flue gas conveyed by the conveying assembly 75;

且进气组件72安装在支架71上,且加热组件73安装在支架71上,且输送组件75安装在支架71上,且驱动组件76安装在支架71上。And the air intake assembly 72 is installed on the bracket 71 , and the heating assembly 73 is installed on the bracket 71 , and the delivery assembly 75 is installed on the bracket 71 , and the driving assembly 76 is installed on the bracket 71 .

支架71包括:底板711、侧板712;底板711的顶部一侧固定安装侧板712。The bracket 71 includes: a bottom plate 711 and a side plate 712 ; the side plate 712 is fixedly installed on the top side of the bottom plate 711 .

进气组件72包括:方块721、流通槽722、硬管723;The intake assembly 72 includes: a block 721, a flow groove 722, and a hard pipe 723;

方块721固定安装在底板711的顶部上,且方块721的一端内壁固定安装第三管道60,方块721的内壁开设流通槽722,方块721的顶端内壁固定安装若干硬管723;The block 721 is fixedly installed on the top of the base plate 711, and the third pipeline 60 is fixedly installed on the inner wall of one end of the block 721, and the inner wall of the block 721 is provided with a circulation groove 722, and some hard pipes 723 are fixedly installed on the inner wall of the top of the block 721;

工作原理:脱硫后的高温烟气流入到第三管道60中时,则会经过流通槽722和硬管723流入到外筒731和内筒733之间的空间中。Working principle: when the high-temperature flue gas after desulfurization flows into the third pipe 60 , it will flow into the space between the outer cylinder 731 and the inner cylinder 733 through the flow groove 722 and the hard pipe 723 .

加热组件73包括:外筒731、支撑板732、其材质为黄铜的内筒733、转轴734;The heating assembly 73 includes: an outer cylinder 731, a support plate 732, an inner cylinder 733 made of brass, and a rotating shaft 734;

外筒731的底端内壁固定安装若干硬管723,且外筒731的顶端内壁固定安装进气管753,外筒731的两端内壁均固定安装支撑板732,支撑板732的内壁通过轴承转动连接内筒733,且内筒733的一端内壁固定安装连接板,内筒733的另一端内壁可拆卸连接筒盖74,转轴734通过轴承转动连接在侧板712上,且转轴734的一端固定安装连接板;A plurality of hard tubes 723 are fixedly installed on the inner wall of the bottom end of the outer cylinder 731, and an air intake pipe 753 is fixedly installed on the inner wall of the top end of the outer cylinder 731, and support plates 732 are fixedly installed on the inner walls of both ends of the outer cylinder 731, and the inner walls of the support plates 732 are connected through bearing rotation Inner cylinder 733, and one end inner wall of inner cylinder 733 is fixedly installed with connecting plate, the other end inner wall of inner cylinder 733 is detachably connected with cylinder cover 74, rotating shaft 734 is connected on the side plate 712 through bearing rotation, and one end of rotating shaft 734 is fixedly installed and connected plate;

工作原理:当高温烟气流入到外筒731和内筒733之间的空间中时,则会将热量传递给内筒733,以实现对内筒733中的燃料进行预热。Working principle: when the high-temperature flue gas flows into the space between the outer cylinder 731 and the inner cylinder 733 , heat will be transferred to the inner cylinder 733 to preheat the fuel in the inner cylinder 733 .

输送组件75包括:固定板751、气泵752、进气管753、出气管754;The conveying assembly 75 includes: a fixed plate 751, an air pump 752, an air inlet pipe 753, and an air outlet pipe 754;

固定板751固定安装在侧板712的顶端一侧上,气泵752固定安装在固定板751的顶部上,气泵752的输入端固定安装进气管753,气泵752的输出端固定安装出气管754;The fixed plate 751 is fixedly installed on the top side of the side plate 712, the air pump 752 is fixedly installed on the top of the fixed plate 751, the input end of the air pump 752 is fixedly installed with the air inlet pipe 753, and the output end of the air pump 752 is fixedly installed with the air outlet pipe 754;

工作原理:当对内筒733中的燃料进行预热时,启动气泵752,启动后,预热后的烟气则会经过进气管753和出气管754流入到密封盒761中。Working principle: when the fuel in the inner cylinder 733 is preheated, the air pump 752 is started. After starting, the preheated flue gas will flow into the sealed box 761 through the inlet pipe 753 and the outlet pipe 754 .

驱动组件76包括:密封盒761、位于密封盒761内腔的旋转块762、旋转板763、出气孔764;The drive assembly 76 includes: a sealed box 761, a rotating block 762 located in the inner cavity of the sealed box 761, a rotating plate 763, and an air outlet 764;

密封盒761固定安装在侧板712的一侧上,且密封盒761的顶端内壁固定安装出气管754,旋转块762的内壁固定安装转轴734,旋转块762的外表面固定安装若干旋转板763,且一组旋转板763位于出气管754的正下方,出气孔764开设在密封盒761的底端内壁上;The sealing box 761 is fixedly installed on one side of the side plate 712, and the top inner wall of the sealing box 761 is fixedly installed with the outlet pipe 754, the inner wall of the rotating block 762 is fixedly installed with the rotating shaft 734, and the outer surface of the rotating block 762 is fixedly installed with several rotating plates 763, And a set of rotating plates 763 is located directly below the air outlet pipe 754, and the air outlet hole 764 is opened on the bottom inner wall of the sealed box 761;

工作原理:当预热后的烟气流入到密封盒761中时,则会对一组旋转板763进行冲击,受到冲击的旋转板763则会进行旋转,以使旋转块762带动转轴734进行旋转,当转轴734旋转时,则会使内筒733进行旋转,以使内筒733中的物料进行翻滚,以使燃料均匀受热,其中,当烟气流入到密封盒761中后,烟气则会经过出气孔764流出去。Working principle: when the preheated flue gas flows into the sealed box 761, it will impact a group of rotating plates 763, and the impacted rotating plates 763 will rotate, so that the rotating block 762 drives the rotating shaft 734 to rotate , when the rotating shaft 734 rotates, the inner cylinder 733 will be rotated, so that the material in the inner cylinder 733 will be rolled, so that the fuel will be heated evenly, wherein, when the smoke flows into the sealed box 761, the smoke will be It flows out through the air outlet hole 764.

筒盖74为:支撑块742、密封板741;The cylinder cover 74 is: a support block 742, a sealing plate 741;

内筒733的一端内壁固定安装若干支撑块742,密封板741通过螺丝可拆卸连接在支撑块742上;A number of supporting blocks 742 are fixedly installed on the inner wall of one end of the inner cylinder 733, and the sealing plate 741 is detachably connected to the supporting blocks 742 by screws;

工作原理:当对一组内筒733中的燃料预热完毕后,关闭一组电磁阀,启动另一组电磁阀,以使高温烟气流入到另一组换热机构70中,此时,将螺丝拆下,并取走密封板741即可,过后,将预热完毕的燃料从内筒733中取出,并输送至火电厂使用即可,在将预热完毕的燃料取出后,再将新的待使用的燃料装入内筒733中。Working principle: After preheating the fuel in one group of inner tubes 733, close one group of solenoid valves and start another group of solenoid valves, so that high-temperature smoke flows into another group of heat exchange mechanisms 70. At this time, Remove the screws and take away the sealing plate 741. Afterwards, take out the preheated fuel from the inner cylinder 733 and transport it to the thermal power plant for use. After taking out the preheated fuel, put the New fuel to be used is loaded into the inner cylinder 733 .

实施例2:Example 2:

本实用新型提供一种火电厂余热回收利用系统,请参阅图6,筒盖74为:连接柱746、挡板747、驱动块748;The utility model provides a thermal power plant waste heat recovery and utilization system, please refer to Figure 6, the cylinder cover 74 is: a connecting column 746, a baffle plate 747, and a driving block 748;

连接柱746插在内筒733的一端内壁上,且接柱746与内筒733之间设有密封圈,连接柱746的一端固定安装挡板747,驱动块748固定安装在挡板747上;The connecting column 746 is inserted on the inner wall of one end of the inner cylinder 733, and a sealing ring is arranged between the connecting column 746 and the inner cylinder 733, and one end of the connecting column 746 is fixedly installed with a baffle plate 747, and the driving block 748 is fixedly installed on the baffle plate 747;

工作原理:当对一组内筒733中的燃料预热完毕后,关闭一组电磁阀,启动另一组电磁阀,以使高温烟气流入到另一组换热机构70中,此时,通过驱动块748将连接柱746拆下,过后,将预热完毕的燃料从内筒733中取出,并输送至火电厂使用即可,在将预热完毕的燃料取出后,再将新的待使用的燃料装入内筒733中。Working principle: After preheating the fuel in one group of inner tubes 733, close one group of solenoid valves and start another group of solenoid valves, so that high-temperature smoke flows into another group of heat exchange mechanisms 70. At this time, The connecting column 746 is removed through the drive block 748. Afterwards, the preheated fuel is taken out from the inner cylinder 733 and transported to the thermal power plant for use. After the preheated fuel is taken out, the new fuel to be The used fuel is loaded into the inner cylinder 733 .

虽然在上文中已经参考实施方式对本实用新型进行了描述,然而在不脱离本实用新型的范围的情况下,可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是,只要不存在结构冲突,本实用新型所披露的实施方式中的各项特征均可通过任意方式相互结合起来使用,在本说明书中未对这些组合的情况进行穷举性的描述仅仅是出于省略篇幅和节约资源的考虑。因此,本实用新型并不局限于文中公开的特定实施方式,而是包括落入权利要求的范围内的所有技术方案。While the invention has been described above with reference to the embodiments, various modifications may be made and equivalents may be substituted for parts thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, all the features in the embodiments disclosed in the present utility model can be used in combination with each other in any way, and the description of these combinations is not exhaustive in this specification. For the sake of omitting space and saving resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (9)

1. Waste heat recovery utilizes system in thermal power plant, its characterized in that includes:
the smoke exhaust pipe (10) is used for conveying high-temperature smoke generated by the thermal power plant;
a dust remover (20) for removing dust from the high temperature flue gas;
a desulfurizing tower (40) for desulfurizing the high-temperature flue gas;
the heat exchange mechanism (70) is used for preheating fuel to be used by utilizing high-temperature flue gas;
wherein, specifically:
one end of the smoke exhaust pipe (10) is connected with the air inlet end of the dust remover (20), the air outlet end of the dust remover (20) is connected with the air inlet end of the desulfurizing tower (40) through a first pipeline (30), the air outlet end of the desulfurizing tower (40) is fixedly connected with a second pipeline (50), one end of the second pipeline (50) is fixedly connected with two groups of third pipelines (60) provided with electromagnetic valves on the second pipeline through a three-way joint, and one end of each group of third pipelines (60) is connected with a group of heat exchange mechanisms (70).
2. The heat-engine plant waste heat recovery and utilization system according to claim 1, wherein the heat exchange mechanism (70) comprises:
a bracket (71);
an air inlet assembly (72) for conveying high-temperature flue gas, and the air inlet assembly (72) is arranged on the bracket (71);
a heating component (73) for preheating fuel by utilizing high-temperature flue gas conveyed by the air inlet component (72), wherein the heating component (73) is arranged on the bracket (71);
a conveying component (75) for conveying the preheated flue gas, wherein the conveying component (75) is arranged on the bracket (71);
and a driving component (76) for rotating the heating component (73) by utilizing the flue gas conveyed by the conveying component (75), wherein the driving component (76) is arranged on the bracket (71).
3. A thermal power plant waste heat recovery and utilization system according to claim 2, wherein the bracket (71) comprises:
a bottom plate (711);
and a side plate (712), wherein the side plate (712) is fixedly installed on one side of the top of the bottom plate (711).
4. A thermal power plant waste heat recovery system according to claim 3, wherein the air intake assembly (72) comprises:
a block (721), the block (721) being fixedly installed on the top of the bottom plate (711), and an inner wall of one end of the block (721) being fixedly installed with a third pipe (60);
a flow channel (722), wherein the inner wall of the square (721) is provided with the flow channel (722);
and the inner wall of the top end of the square block (721) is fixedly provided with a plurality of hard pipes (723).
5. A thermal power plant waste heat recovery system according to claim 3, wherein the heating assembly (73) comprises:
the outer barrel (731), a plurality of hard pipes (723) are fixedly arranged on the inner wall of the bottom end of the outer barrel (731), and an air inlet pipe (753) is fixedly arranged on the inner wall of the top end of the outer barrel (731);
the inner walls of the two ends of the outer cylinder (731) are fixedly provided with the supporting plates (732);
the inner wall of the supporting plate (732) is rotationally connected with the inner cylinder (733) through a bearing, a connecting plate is fixedly arranged on the inner wall of one end of the inner cylinder (733), and the inner wall of the other end of the inner cylinder (733) is detachably connected with a cylinder cover (74);
the rotating shaft (734) is rotatably connected to the side plate (712) through a bearing, and one end of the rotating shaft (734) is fixedly provided with a connecting plate.
6. A thermal power plant waste heat recovery system according to claim 3, wherein the conveying assembly (75) comprises:
a fixing plate (751), the fixing plate (751) being fixedly mounted on a top end side of the side plate (712);
an air pump (752), the air pump (752) being fixedly installed on top of the fixing plate (751);
the air inlet pipe (753), the input end of the air pump (752) is fixedly provided with the air inlet pipe (753);
and the air outlet pipe (754) is fixedly arranged at the output end of the air pump (752), and the air outlet pipe (754) is fixedly arranged at the output end of the air pump (752).
7. A thermal power plant waste heat recovery system according to claim 3, wherein the drive assembly (76) comprises:
a seal box (761), wherein the seal box (761) is fixedly arranged on one side of the side plate (712), and an air outlet pipe (754) is fixedly arranged on the inner wall of the top end of the seal box (761);
a rotating block (762) positioned in the inner cavity of the sealing box (761), wherein a rotating shaft (734) is fixedly arranged on the inner wall of the rotating block (762);
the outer surface of the rotating block (762) is fixedly provided with a plurality of rotating plates (763), and a group of rotating plates (763) are positioned right below the air outlet pipe (754);
the air outlet hole (764) is formed in the inner wall of the bottom end of the sealing box (761).
8. The waste heat recovery and utilization system of a thermal power plant according to claim 5, wherein the cylinder cover (74) is:
the inner wall of one end of the inner cylinder (733) is fixedly provided with a plurality of supporting blocks (742);
and the sealing plate (741) is detachably connected to the supporting block (742) through screws.
9. The waste heat recovery and utilization system of a thermal power plant according to claim 5, wherein the cylinder cover (74) is:
the connecting column (746), the connecting column (746) is inserted on the inner wall of one end of the inner cylinder (733), and a sealing ring is arranged between the connecting column (746) and the inner cylinder (733);
a baffle (747), wherein one end of the connecting column (746) is fixedly provided with the baffle (747);
and a driving block (748), wherein the driving block (748) is fixedly arranged on the baffle (747).
CN202223292669.1U 2022-12-08 2022-12-08 A thermal power plant waste heat recovery and utilization system Expired - Fee Related CN219283380U (en)

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