WO2023222000A1 - 一种配套谷物干燥机用的热风炉热源系统 - Google Patents

一种配套谷物干燥机用的热风炉热源系统 Download PDF

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Publication number
WO2023222000A1
WO2023222000A1 PCT/CN2023/094632 CN2023094632W WO2023222000A1 WO 2023222000 A1 WO2023222000 A1 WO 2023222000A1 CN 2023094632 W CN2023094632 W CN 2023094632W WO 2023222000 A1 WO2023222000 A1 WO 2023222000A1
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WO
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Prior art keywords
heat source
source system
hot blast
mentioned
air duct
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PCT/CN2023/094632
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English (en)
French (fr)
Inventor
段贤伍
杨健
朱黄富
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安徽辰宇机械科技有限公司
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Application filed by 安徽辰宇机械科技有限公司 filed Critical 安徽辰宇机械科技有限公司
Priority to ZA2023/09644A priority Critical patent/ZA202309644B/en
Publication of WO2023222000A1 publication Critical patent/WO2023222000A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0052—Details for air heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/06—Grains, e.g. cereals, wheat, rice, corn

Definitions

  • the invention relates to the technical field of hot blast stoves, and in particular to a hot blast stove heat source system for supporting a grain dryer.
  • Hot air furnace is the main auxiliary equipment used for airflow drying, spray drying, fluidization transformation, tower drying, tunnel drying and rotary drying. It is also the main equipment for heating greenhouses and livestock farms. It is widely used in agricultural production, agricultural products and Food processing, metallurgy, building materials and other industries.
  • existing grain dryers are mostly used with indirect hot blast stoves.
  • the existing indirect hot blast stoves are mostly equipped with more air ducts. These air ducts are used during use. , a large amount of smoke and dust will remain on the pipe wall, and most of them are elongated, making manual cleaning very inconvenient.
  • the present invention provides a hot blast furnace heat source system for supporting a grain dryer, which can clean the dust in the pipe online and avoid dust remaining on the pipe wall.
  • the present invention adopts a hot blast furnace heat source system for supporting a grain dryer, including:
  • the heat exchanger part includes multiple sets of air duct groups for hot gas to pass through.
  • the air inlet of the hot blast stove is connected to the air duct group and the ash discharge pipe is located at the rear end of the above-mentioned air duct group;
  • the above-mentioned air duct group includes at least four air ducts arranged in an annular and equally spaced array. There is a central tube in the middle of the four air ducts.
  • the pushing part for the pressing block to rise, and the ash scraping piece is placed in the inner cavity of the above-mentioned air duct.
  • the ash scraping piece and the above-mentioned pressing block are of an integrated structure. In the above scheme, as the temperature in the air duct group rises, the above-mentioned pushing component pushes the pressing block to rise.
  • the dust scraper scrapes the inner wall of the air duct from bottom to top; after the temperature of the air duct group drops, the above-mentioned The pushing component stops running and returns to its original state. At this time, the pressing block falls with the pushing component, and the scraper falls with the pressing block at the same time. Realize the dust scraping action from top to bottom.
  • the ash scraping action can be completed online without manual operation. The scraped dust enters the ash discharge pipe and is discharged with the hot air in the air duct.
  • the above-mentioned pushing component includes a micro-cylinder and a control component.
  • the push rod part of the micro-cylinder is fixedly connected to the pressure block.
  • the above-mentioned control component controls the startup of the micro-cylinder as the temperature rises.
  • the above control component includes conductive sheets corresponding to two positions.
  • the power supply is placed on the conductive sheet at the bottom.
  • the thermal expansion medium changes with the temperature.
  • the characteristics of the volume are used to achieve the purpose of contacting the two conductive sheets under high temperature, thereby achieving the purpose of the above-mentioned micro cylinder driving the pressure block to rise under high temperature.
  • the outer side of the thermal expansion medium is wrapped with an isolation sleeve.
  • the design of the isolation sleeve structure can effectively isolate the thermal expansion medium from the conductive sheet and avoid direct contact between the conductive sheet and the thermal expansion medium.
  • the thermal expansion medium is anhydrous ethanol.
  • the linear expansion coefficient of ethanol is 0.00109m/K. If the temperature is raised from -40°C to 60°C, the ethanol expands by 109mm/m (not Considering the change in linear expansion coefficient caused by temperature change (because the change is small), absolute ethanol is an excellent thermal expansion medium for the present invention.
  • the above-mentioned pressing block is in a long straight shape, and the pressing block includes two correspondingly installed short straight portions.
  • the two above-mentioned short straight portions are sandwiched with fins, and the fins and the dust scraper are integrated.
  • the above-mentioned pressing block adopts a split structure, and the above-mentioned ash scraping piece and the pressing block are fixed by extrusion of the pressing block. This fixation not only facilitates the disassembly and assembly of the pressing block, but also facilitates the disassembly and assembly of the above-mentioned ash scraping piece.
  • a positioning piece is provided between the two short straight parts.
  • the positioning piece passes through the threaded holes of the two short straight parts in turn and locks the two short straight parts through the two threaded holes. The installation makes the disassembly and assembly of the above-mentioned pressure block easier.
  • the above-mentioned fins include a bending part and a connecting part, the above-mentioned bending part is in a "V" shape, and the two extending ends of the bending part are respectively located in the two air ducts and connected to the connecting parts.
  • the connecting part is fixed on the ash scraper, and the bending part of the V-shaped structure allows the above two ash scrapers to form an integrated structure.
  • the above-mentioned ash scraper includes a connecting plate fixedly connected to the connecting part.
  • the connecting plate is provided with a plurality of ventilation holes in the longitudinal direction.
  • a rotating rod is rotatably connected to the bottom of the connecting plate, and the outer circumferential surface of the rotating rod is fixedly connected.
  • the bottom of the ash scraper is designed as a rotatable scraper structure.
  • the above-mentioned connecting block can rotate with the rotating rod as the center, and then during the rising process, the purpose of rotating and rising to scrape the dust on the pipe wall is achieved, so as to further enhance the scraping effect of dust on the pipe wall.
  • the top or bottom of the air duct group shares a ventilation chamber, and a partition is provided between two adjacent ventilation chambers.
  • Two adjacent groups of air duct groups share an ventilation chamber so that the above-mentioned air duct group and ventilation chamber to form an "S" shape
  • the above-mentioned air duct group is designed into an "S"-shaped heat exchange channel to increase the passage range of the above-mentioned hot gas, thereby making the above-mentioned heat exchanger part last for a long time.
  • the above-mentioned ash scraper In the heated state, the above-mentioned ash scraper is kept close to the ash discharge pipe for a long time and rotates driven by the hot air, so that the above ash discharge port is in the ash scraping state for a long time, reducing the risk of dust accumulation at the ash discharge port. phenomenon occurs.
  • the invention provides a hot blast stove heat source system for supporting grain dryers, which has the following beneficial effects:
  • the present invention uses an ash scraper, a pressing block and a pushing component to form an ash removal device for online cleaning of dust accumulated on the inner wall of an air duct.
  • the ash removal device drives the ash scraper to move linearly along the linear direction of the air duct as the temperature of the air duct changes. , during the linear movement, the dust scraper completes the online cleaning action of the inner wall of the air duct, and the scraped dust is discharged along the top ash discharge pipe to achieve the purpose of online cleaning of the inner wall of the air duct.
  • the pushing component of the present invention adopts a micro-cylinder and a control assembly.
  • the micro-cylinder takes advantage of the advantages of small installation space, high guiding accuracy and strong load capacity to effectively complete the lifting action of the above-mentioned press block; on the other hand, the above-mentioned
  • the control component utilizes the characteristics of the volume of the thermal expansion medium that changes with temperature to achieve the purpose of contacting the two conductive sheets under high temperature, thereby achieving the purpose of the above-mentioned micro cylinder driving the pressure block to rise under high temperature.
  • a split structure is adopted, and the above-mentioned ash scraper and the briquette are fixed by extrusion of the briquette. This fixation not only facilitates the disassembly and assembly of the briquette, but also facilitates the disassembly and assembly of the above-mentioned ash scraper.
  • the fins with the "V" shaped bending part allow the two ash scrapers to form one structure; on the other hand, the lower part of the ash scraper is designed to rotate.
  • the above-mentioned connecting block can rotate with the rotating rod as the center, and then during the rising process, the purpose of rotating and rising to scrape the dust on the pipe wall is achieved, so as to further strengthen the dust removal on the pipe wall. Scrape effect.
  • the above-mentioned air duct group is designed into an "S"-shaped heat exchange channel to increase the passage range of the above-mentioned hot air, thereby keeping the above-mentioned heat exchanger part in a heating state for a long time. , and further makes the above-mentioned ash scraper stay close to the ash discharge pipe for a long time, and rotates driven by the hot air, so that the above ash discharge port is in the ash scraping state for a long time, reducing the occurrence of dust accumulation at the ash discharge port.
  • Figure 1 is a schematic view of the main structure of a hot blast stove heat source system used in supporting grain dryers;
  • FIG. 2 is a schematic front structural view of the heat exchanger part of the present invention.
  • Figure 3 is a schematic top view of the central tube in the present invention.
  • Figure 4 is a schematic diagram of the overall structure of the pressure block of the present invention.
  • Figure 5 is a schematic diagram of the overall structure of the fin in the present invention.
  • Figure 6 is a schematic diagram of the overall structure of the ash scraper in the present invention.
  • Figure 7 is a schematic structural diagram of the ash scraper in the present invention, viewed from above;
  • Figure 8 is a schematic front structural view of the control assembly in the present invention.
  • a hot blast stove heat source system for supporting a grain dryer.
  • the hot blast stove heat source system consists of a hot blast stove 1 and a heat exchanger part 2.
  • Figure 1 is A schematic diagram of the entire heat source system of a hot blast stove applying the present invention.
  • the heat exchanger part 2 includes a shell 21 and multiple sets of air ducts located inside the shell 21 for high-temperature flue gas to pass through.
  • One end of the air duct group is connected to the air inlet of the hot blast furnace 1 and the other end is connected to the ash discharge pipe 3.
  • the above-mentioned air duct group includes at least four air ducts 4 arranged in an annular and equally spaced array.
  • the top or bottom of the air duct group shares a ventilation chamber 5, and a partition 51 is provided between two adjacent ventilation chambers 5.
  • Two adjacent groups of air ducts share a ventilation chamber 5 so that the above-mentioned ventilation chamber
  • the tube group and the ventilation chamber 5 form an "S"-shaped heat exchange channel.
  • the structure of the central pipe 6 refers to Figure 3.
  • the ash removal device is arranged in the central pipe 6 located in the middle of the four air ducts 4.
  • the center The bottom of the tube 6 is provided with a pressing block 61.
  • the pressing block 61 please refer to Figure 4 for the pressing block 61.
  • the bottom of the above-mentioned pressing block 61 is provided with a pushing member 62 that rises as the temperature rises.
  • the dust scraper 63 is placed in the above-mentioned air duct. 4 inner cavity, the ash scraper 63 and the above-mentioned pressing block 61 are of an integrated structure.
  • the pushing component 62 drives the ash scraper 63 along the straight line of the air duct 4 as the temperature of the air duct 4 changes.
  • the dust scraper 63 completes the online cleaning action of the inner wall of the air duct 4, and the scraped dust is discharged along the top ash discharge pipe 3 to achieve the purpose of online cleaning of the inner wall of the air duct.
  • the above-mentioned pushing component 62 includes a micro-cylinder 621 and a control assembly 7.
  • the push rod part of the micro-cylinder 621 is fixedly connected to the pressure block 61.
  • the above-mentioned control component Component 7 controls the micro-cylinder 621 to start as the temperature rises.
  • the control component 7 includes conductive sheets 71 corresponding to two positions.
  • the power supply 711 is placed on the conductive sheet 71 at the bottom.
  • a thermal expansion medium 72 that expands as the temperature rises is provided under the bottom conductive sheet 71.
  • the thermal expansion medium 72 is wrapped with an isolation sleeve 721 on the outside, and the thermal expansion medium 72 is anhydrous ethanol.
  • the control component 7 uses the characteristics of the thermal expansion medium 72 to change its volume with temperature to achieve the purpose of contacting the two conductive sheets 71 under high temperature, thereby achieving the above
  • the purpose of the micro cylinder 621 is to drive the pressure block 61 to rise under high temperature conditions.
  • the thermal expansion medium 72 After the thermal expansion medium 72 is heated and expanded, it drives the bottom conductive sheet 71 to move upward and brings the two conductive sheets 71 into contact. At this time, the micro cylinder 621 is energized and drives the pressing block 61 to rise.
  • the pressure block 61 is elongated and straight.
  • the pressure block 61 includes two correspondingly installed short straight portions 611.
  • the two short straight portions 611 are sandwiched with fins 612.
  • the fins 612 and the scraper 63 are of an integrated structure, and a positioning member 613 is provided between the two short straight portions 611.
  • the positioning member 613 passes through the threaded holes 614 of the two short straight portions 611 and passes through the two threaded holes. 614 locks the two short straight portions 611.
  • the fins 612 include a bending portion 615 and a connecting portion 616.
  • the bending portion 615 is in a "V" shape.
  • the two sides of the bending portion 615 The two extending ends are respectively located in the two air ducts 4 and connected to a connecting portion 616, and the connecting portion 616 is fixed on the dust scraper 63.
  • the pressure block 61 of the above structure adopts a split structure, which facilitates the disassembly and assembly of the above-mentioned pressure block 61 and the dust scraper 63.
  • the structure is simple and can be recycled; at the same time, the above-mentioned dust scraper 63 and the pressure block 61 pass through a specially made " The V”-shaped fin connection, on the one hand, connects the two scraping parts into an integrated structure; on the other hand, the contact area between the special-shaped fins and the pressing block is larger, and the pressing effect is stronger.
  • the dust scraper 63 includes a connecting plate 631 fixedly connected to the connecting portion 616.
  • the connecting plate 631 is provided with a plurality of The ventilation holes 632 and the bottom of the connecting plate 631 are rotationally connected to a rotating rod 633.
  • the outer circumferential surface of the rotating rod 633 is fixedly connected to a connecting block 634.
  • the scraper 635 is placed on the extended end of the connecting block 634 and contacts the inner wall of the air duct 4. Then, during the rising process, the purpose of scraping the dust on the pipe wall is achieved by rotating and rising, so as to further enhance the scraping effect of the dust on the pipe wall.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Drying Of Solid Materials (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

一种配套谷物干燥机用的热风炉热源系统，包括：换热器部分（2），该换热器部分（2）包括供热气通过的多组风管组，上述风管组包括至少四个风管（4），四个风管（4）的中部设有中心管（6），中心管（6）底部设有压块（61），压块（61）底部设有随温度上升而推动压块（61）上升的推动部件（62），刮灰件（63）置于风管（4）内腔。随着风管组内温度的上升，推动部件（62）推动压块（61）上升，进而使得刮灰件（63）由下至上依次刮涂风管（4）内壁，风管组温度下降后，推动部件（62）停止运行并恢复原始状态，压块（61）随着推动部件（62）下落，同时刮灰件（63）随着压块（61）下落，无需人工操作，即可在线完成刮灰动作，刮除的灰尘随着风管（4）内的热风进入排灰管（3）排出。

Description

一种配套谷物干燥机用的热风炉热源系统 技术领域
本发明涉及热风炉的技术领域，具体涉及一种配套谷物干燥机用的热风炉热源系统。
背景技术
热风炉是用于气流干燥、喷雾干燥、流化改造、塔式干燥、隧道干燥以及回转干燥等装置的主要辅助设备，也是温室及家畜饲养场加温的主要设备广泛应用于农业生产、农产品及食品加工、冶金、建材等行业。
一般来说，现有谷物干燥机多搭配间接式热风炉使用，为确保换热器的换热效果，现有间接式热风炉内多设有较多的风管，这些风管在使用过程中，会在管壁残留大量烟尘，且多呈细长状，人工清理十分不方便。
为此，我们提供一种配套谷物干燥机用的热风炉热源系统解决上述问题。
发明内容
为了避免和克服现有技术中存在的技术问题，本发明提供了一种配套谷物干燥机用的热风炉热源系统，可以在线清理管道中的灰尘，避免灰尘残留在管壁的现象发生。
为了实现上述目的，本发明采用的一种配套谷物干燥机用的热风炉热源系统，包括：
换热器部分，该换热器部分包括供热气通过的多组风管组，热风炉进气口与风管组连通而排灰管位于上述风管组的尾端；其中：
上述风管组包括至少四个呈环形等间距阵列排布的风管，四个风管的中部设有中心管，该中心管底部设有压块，上述压块底部设有随温度上升而推动压块上升的推动部件，刮灰件置于上述风管内腔，该刮灰件与上述压块为一体式结构。在上述方案中，随着风管组内温度的上升，上述推动部件推动压块上升，在上升过程中，刮灰件由下至上依次刮涂风管内壁；在风管组温度下降后，上述推动部件停止运行并恢复原始状态，此时，压块随着推动部件下落，同时刮灰件随着压块下落。实现由上至下的刮灰动作。无需人工操作，即可在线完成刮灰动作，刮除的灰尘随着风管内的热风进入排灰管排出。
作为上述方案的进一步优化，上述推动部件包括微型气缸及控制组件，该微型气缸的推杆部分与压块固接，上述控制组件随温度上升而控制微型气缸启动。利用微型 气缸安装空间小、导向精度高及负载能力强的优点，可有效完成上述压块的升降动作。
作为上述方案的进一步优化，上述控制组件包括两位置对应的导电片，电源置于该位于底部的导电片上，底部导电片的下方设有随温度上升而上升的热膨胀介质，利用热膨胀介质随温度变化体积的特性，以实现在高温状态下，两导电片接触的目的，进而实现上述微型气缸在高温状态下带动压块上升的目的。
作为上述方案的进一步优化，上述热膨胀介质外侧包裹有隔离套，上述隔离套结构的设计，可有效将热膨胀介质与导电片隔离，避免导电片与热膨胀介质的直接接触，
作为上述方案的进一步优化，上述热膨胀介质为无水乙醇，当20℃时，乙醇的线性膨胀系数为0.00109m/K，若从-40摄氏度升温到60摄氏度，则乙醇膨胀了109mm/m(不考虑温度变化引起的线性膨胀系数的变化，因其变化较小)，所以无水乙醇对本发明而言是极佳的热膨胀介质。
作为上述方案的进一步优化，上述压块呈长直状，该压块包括两个对应安装的短直部分，两个上述短直部分夹设有翅片，该翅片与刮灰件为一体式结构，上述压块采用分体式结构，通过压块的挤压实现上述刮灰件与压块的固定，该固定不但易于压块的拆装，同时易于上述刮灰件的拆装。
作为上述方案的进一步优化，两个短直部分间设有定位件，上述定位件依次穿过两个短直部分的螺纹孔并通过上述两个螺纹孔锁定上述两个短直部分，定位件的设置，使上述压块的拆装变得更为简便。
作为上述方案的进一步优化，上述翅片包括弯折部及连接部，上述弯折部呈“V”型，该弯折部的两个伸出端分别位于两个风管内并连接有连接部，该连接部固接在刮灰件上，V型结构的弯折部，可使上述两个刮灰件组成一体式结构。
作为上述方案的进一步优化，上述刮灰件包括与连接部固接的连接板，该连接板的纵向设有多个通风孔，连接板底部转动连接有转动杆，该转动杆外圆周表面固接有连接块，刮片置于上述连接块的伸出端并于风管内壁接触，对于上述刮灰件而言，将该刮灰件的底部设计成可转动的刮片结构，在热风吹动的过程中，上述连接块可进行以转杆为中心的转动动作，进而在上升过程中，实现旋转上升刮除管壁上灰尘的目的，以进一步加强管壁上灰尘的刮除效果。
作为上述方案的进一步优化，风管组顶部或底部共用一个换气腔，相邻两个换气腔间设有隔板，相邻两组风管组共用一个换气腔以使上述风管组及换气腔构成“S”型 的换热通道，考虑到灰尘一般积聚在排灰口处，通过将上述风管组设计成“S”型的换热通道，以增加上述热气的通过范围，进而使上述换热器部分长时间处于加热状态，进而使上述刮灰件长时间处于靠近排灰管的状态，并在热风的驱动下旋转，从而使上述排灰口处长时间处于刮灰状态，降低排灰口处积聚灰尘的现象发生。
本发明的一种配套谷物干燥机用的热风炉热源系统，具备如下有益效果：
1.本发明通过将刮灰件、压块及推动部件构成在线清理风管内壁积灰的除灰装置，该除灰装置随风管温度变化而带动刮灰件沿风管直线方向作直线移动，在直线移动的过程中，刮灰件完成对风管内壁的在线清理动作，刮下的灰尘顺着顶部排灰管排出，以实现在线清理风管内壁的目的。
2.本发明的推动部件，采用微型气缸及控制组件，一方面，利用微型气缸安装空间小、导向精度高及负载能力强的优点，可有效完成上述压块的升降动作；另一方面，上述控制组件利用热膨胀介质随温度变化体积的特性，以实现在高温状态下，两导电片接触的目的，进而实现上述微型气缸在高温状态下带动压块上升的目的。
3.对于上述压块结构，采用分体式结构，通过压块的挤压实现上述刮灰件与压块的固定，该固定不但易于压块的拆装，同时易于上述刮灰件的拆装。
4.对于上述刮灰件而言，一方面，具备“V”型结构弯折部的翅片，使得两个刮灰件可组成一个结构；另一方面，该刮灰件的下方设计成转动结构，在热风吹动的过程中，上述连接块可进行以转杆为中心的转动动作，进而在上升过程中，实现旋转上升刮除管壁上灰尘的目的，以进一步加强管壁上灰尘的刮除效果。
5.考虑到灰尘一般积聚在排灰口处，通过将上述风管组设计成“S”型的换热通道，以增加上述热气的通过范围，进而使上述换热器部分长时间处于加热状态，进而使上述刮灰件长时间处于靠近排灰管的状态，并在热风的驱动下旋转，从而使上述排灰口处长时间处于刮灰状态，降低排灰口处积聚灰尘的现象发生。
参照后文的说明与附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式，应该理解，本发明的实施方式在范围上并不因而受到限制，在所附权利要求的精神和条款的范围内，本发明的实施方式包括许多改变、修改和等同。
附图说明
图1为一种配套谷物干燥机用的热风炉热源系统的主视结构示意图；
图2为本发明中换热器部分的主视结构示意图；
图3为本发明中中心管的俯视结构示意图；
图4为本发明中压块的整体结构示意图；
图5为本发明中翅片的整体结构示意图；
图6为本发明中刮灰件的整体结构示意图；
图7为本发明中刮灰件的仰视结构示意图；
图8为本发明中控制组件的主视结构示意图。
图中：1、热风炉；2、换热器部分；3、排灰管；4、风管；5、换气腔；6、中心管；7、控制组件；21、壳体；51、隔板；61、压块；62、推动部件；63、刮灰件；71、导电片；72、热膨胀介质；611、短直部分；612、翅片；613、定位件；614、螺纹孔；615、弯折部；616、连接部；621、微型气缸；631、连接板；632、通风孔；633、转动杆；634、连接块；635、刮片；711、电源；721、隔离套。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明了，下面通过附图中及实施例，对本发明进行进一步详细说明。但是应该理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限制本发明的范围。
需要说明的是，当元件被称为“设置于、设有”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件，当一个元件被认为是“连接、相连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件，“固连”为固定连接的含义，固定连接的方式有很多种，不作为本文的保护范围，本文中所使用的术语“垂直的”“水平的”“左”“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本文所使用的所有技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同，本文中在说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在限制本发明，本文中所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合；
参考图1-8，根据本发明的一个实施例的一种配套谷物干燥机用的热风炉热源系统，该热风炉热源系统由热风炉1及换热器部分2组成，优选的，图1为应用本发明的热风炉热源系统整体的示意图，换热器部分2参考图2，该换热器部分2包括壳体21及位于壳体21内部供高温烟气通过的多组风管组，以实现对壳体21内腔加热的目的， 该风管组的一端连接热风炉1进气口而另一端连接排灰管3，上述风管组包括至少四个呈环形等间距阵列排布的风管4。
在一些范例中，风管组顶部或底部共用一个换气腔5，相邻两个换气腔5间设有隔板51，相邻两组风管组共用一个换气腔5以使上述风管组及换气腔5构成“S”型的换热通道。
放置除灰装置的一个理想位置是在靠近排灰管3的风管组中，中心管6的结构参考图3，该除灰装置布置于位于四个风管4中部的中心管6，该中心管6底部设有压块61，对于压块61而言，该压块61参考图4，上述压块61底部设有随温度上升而上升的推动部件62，刮灰件63置于上述风管4内腔，该刮灰件63与上述压块61为一体式结构，在该除灰装置处于高温状态后，该推动部件62随风管4温度变化而带动刮灰件63沿风管4直线方向作直线移动，在直线移动的过程中，刮灰件63完成对风管4内壁的在线清理动作，刮下的灰尘顺着顶部排灰管3排出，以实现在线清理风管内壁的目的。
如图中清楚的看到，如图8所示，在一种构造中，上述推动部件62包括微型气缸621及控制组件7，该微型气缸621的推杆部分与压块61固接，上述控制组件7随温度上升而控制微型气缸621启动。
在一些范例中，上述控制组件7包括两位置对应的导电片71，电源711置于底部的导电片71上，底部导电片71的下方设有随温度上升而膨胀的热膨胀介质72，上述热膨胀介质72外侧包裹有隔离套721，上述热膨胀介质72为无水乙醇，上述控制组件7利用热膨胀介质72随温度变化体积的特性，以实现在高温状态下，两导电片71接触的目的，进而实现上述微型气缸621在高温状态下带动压块61上升的目的。
具体的，热膨胀介质72受热膨胀后，驱使底部导电片71向上移动，并使两个导电片71接触，此时，微型气缸621通电并带动压块61上升。
为更好的实现上述除灰效果，本实用新型对上述压块结构作进一步讨论：
在图5中压块61的构造中，上述压块61呈长直状，该压块61包括两个对应安装的短直部分611，两个上述短直部分611夹设有翅片612，该翅片612与刮灰件63为一体式结构，两个短直部分611间设有定位件613，上述定位件613依次穿过两个短直部分611的螺纹孔614并通过上述两个螺纹孔614锁定上述两个短直部分611，上述翅片612包括弯折部615及连接部616，上述弯折部615呈“V”型，该弯折部615的两 个伸出端分别位于两个风管4内并连接有连接部616，该连接部616固接在刮灰件63上。
通过上述结构的压块61，采用分体式结构，便于实现上述压块61及刮灰件63的拆装，构造简单，可循环使用；同时，上述刮灰件63与压块61通过特制的“V”型翅片连接，一方面，使两个刮灰件连接成一体式结构；另一方面，特殊状结构的翅片与压块压合的接触面积更大，压合效果更强。
为更进一步清除上述风管4管壁上的积灰，请参考图6及图7，上述刮灰件63包括与连接部616固接的连接板631，该连接板631的纵向设有多个通风孔632，连接板631底部转动连接有转动杆633，该转动杆633外圆周表面固接有连接块634，刮片635置于上述连接块634的伸出端并于风管4内壁接触，进而在上升过程中，实现旋转上升刮除管壁上灰尘的目的，以进一步加强管壁上灰尘的刮除效果。
仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换或改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种配套谷物干燥机用的热风炉热源系统，其特征在于，包括：
    换热器部分，该换热器部分包括供热气通过的多组风管组，热风炉进气口与风管组连通而排灰管位于上述风管组的尾端；其中：
    上述风管组包括至少四个呈环形等间距阵列排布的风管，四个风管的中部设有中心管，该中心管底部设有压块，上述压块底部设有随温度上升而推动压块上升的推动部件，刮灰件置于上述风管内腔，该刮灰件与上述压块为一体式结构。
  2. 根据权利要求1所述的一种配套谷物干燥机用的热风炉热源系统，其特征在于：上述推动部件包括微型气缸及控制组件，该微型气缸的推杆部分与压块固接，上述控制组件随温度上升而控制微型气缸启动。
  3. 根据权利要求2所述的一种配套谷物干燥机用的热风炉热源系统，其特征在于：上述控制组件包括两位置对应的导电片，电源置于该位于底部的导电片上，底部导电片的下方设有随温度上升而上升的热膨胀介质。
  4. 根据权利要求3所述的一种配套谷物干燥机用的热风炉热源系统，其特征在于：上述热膨胀介质外侧包裹有隔离套。
  5. 根据权利要求4所述的一种配套谷物干燥机用的热风炉热源系统，其特征在于：上述热膨胀介质为无水乙醇。
  6. 根据权利要求5所述的一种配套谷物干燥机用的热风炉热源系统，其特征在于：上述压块呈长直状，该压块包括两个对应安装的短直部分，两个上述短直部分夹设有翅片，该翅片与刮灰件为一体式结构。
  7. 根据权利要求6所述的一种配套谷物干燥机用的热风炉热源系统，其特征在于：两个短直部分间设有定位件，上述定位件依次穿过两个短直部分的螺纹孔并通过上述两个螺纹孔锁定上述两个短直部分。
  8. 根据权利要求6所述的一种配套谷物干燥机用的热风炉热源系统，其特征在于：上述翅片包括弯折部及连接部，上述弯折部呈“V”型，该弯折部的两个伸出端分别位于两个风管内并连接有连接部，该连接部固接在刮灰件上。
  9. 根据权利要求7所述的一种配套谷物干燥机用的热风炉热源系统，其特征在于：上述刮灰件包括与连接部固接的连接板，该连接板的纵向设有多个通风孔，连接板底部转动连接有转动杆，该转动杆外圆周表面固接有连接块，刮片置于上述连接块的伸出端并于风管内壁接触。
  10. 根据权利要求9所述的一种配套谷物干燥机用的热风炉热源系统，其特征在于：风管组顶部或底部共用一个换气腔，相邻两个换气腔间设有隔板，相邻两组风管组共用一个换气腔以使上述风管组及换气腔构成“S”型的换热通道。
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