CN103526003B - Heat-controllable tubular gas heat treatment furnace - Google Patents
Heat-controllable tubular gas heat treatment furnace Download PDFInfo
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Abstract
一种可控热管式燃气热处理炉，其特征是它由燃气炉（1）和热处理炉（12）组成，热处理炉（12）的一端支承在燃气炉（1）上，另一端支承在支架（17）上，重力热管上端的冷凝端位于热处理炉（12）中用于对热处理炉（12）的炉膛进行加热，直管型重力热管下端的蒸发端穿过热处理炉（12）和燃气炉（1）的炉壁位于燃气炉（1）用于吸收燃气炉（1）产生的热量；所述的燃气炉（1）和热处理炉（12）均连接有使其内部温度均匀的通风装置。本发明结构简单，供热方式灵活，可以利用各种废热、余热，节能环保，制造工艺简便，可以广泛应用在当今的工业生产中。
A controllable heat pipe gas heat treatment furnace, characterized in that it consists of a gas furnace (1) and a heat treatment furnace (12), one end of the heat treatment furnace (12) is supported on the gas furnace (1), and the other end is supported on a bracket ( 17), the condensing end of the upper end of the gravity heat pipe is located in the heat treatment furnace (12) for heating the hearth of the heat treatment furnace (12), and the evaporation end of the lower end of the straight tube type gravity heat pipe passes through the heat treatment furnace (12) and the gas furnace ( 1) The furnace wall is located on the gas furnace (1) to absorb the heat generated by the gas furnace (1); the gas furnace (1) and the heat treatment furnace (12) are connected with a ventilation device to make the internal temperature uniform. The invention has simple structure, flexible heating mode, can utilize various waste heat and waste heat, is energy-saving and environment-friendly, has simple and convenient manufacturing process, and can be widely used in today's industrial production.
Description
技术领域 technical field
本发明涉及一种热处理炉，尤其是一种不使用电能的热处理炉，具体地说是一种能利用燃气燃烧产生的热能或工业废气热能对热处理炉进行加热的可控热管式燃气热处理炉。 The invention relates to a heat treatment furnace, especially a heat treatment furnace that does not use electric energy, specifically a controllable heat pipe gas heat treatment furnace that can use heat energy generated by gas combustion or industrial waste gas heat energy to heat the heat treatment furnace.
背景技术 Background technique
众所周知，热处理是金属零部件生产中非常重要的一道工序，而现代工业生产对热处理的工作效率、热处理温度的精确控制以及节能的要求越来越高。机械工业70%的零部件需要进行热处理，汽车、拖拉机工业70%-80%的零部件需要进行热处理加工，工具、刃具和轴承产品则100%需要进行热处理，即使一些民用轻工金属制品的使用寿命，绝大部分也依靠热处理得到提高。而紧固件行业、轴承行业、链条行业、工具行业、汽车、拖拉机、摩托车零部件行业都是靠热处理质量来竞争市场。随着工业的发展在十年内预测，每年有40-50 万t 新增热加工量，而现在市面上的热处理炉大多以热电阻加热形式为主，对用电量的需求极大，是耗能极高的一项工业生产，实在不符合当今世界提倡的低碳环保的号召。而国内电力供给主要是燃煤发电为主，热量转变为电能效率不高，电能在传输中也有很大损耗，最终将电能提供给热处理炉的热电阻加热时，亦会损耗。 As we all know, heat treatment is a very important process in the production of metal parts, and modern industrial production has higher and higher requirements for heat treatment efficiency, precise control of heat treatment temperature and energy saving. 70% of the parts in the machinery industry need to be heat treated, 70%-80% of the parts in the automobile and tractor industries need to be heat treated, and 100% of the tools, cutting tools and bearing products need to be heat treated, even if some civilian light industrial metal products are used Most of the service life is also improved by heat treatment. The fastener industry, bearing industry, chain industry, tool industry, automobile, tractor, and motorcycle parts industries all rely on heat treatment quality to compete in the market. With the development of the industry, it is predicted within ten years that there will be 400,000-500,000 tons of new thermal processing capacity per year, and most of the heat treatment furnaces on the market today are mainly in the form of thermal resistance heating, which has a huge demand for electricity consumption. An industrial production with extremely high performance does not meet the call of low-carbon environmental protection advocated by the world today. However, the domestic power supply is mainly based on coal-fired power generation. The conversion of heat into electric energy is not efficient, and the electric energy is also greatly lost during transmission. When the electric energy is finally provided to the thermal resistance of the heat treatment furnace for heating, it will also be lost.
针对上述缺陷，如今的措施一般是进行一项或者几项的改进，没有从源头上去解决热处理炉的问题。鉴于上述问题，本发明改变了传统热处理炉的热电阻供热方式，用热管替代热电阻给热处理炉供热，能源结构上也使用天然气或者煤气以及工业高温废气等替代电能，既提高了能源的利用效率，也可进行大规模工业化生产。 In response to the above defects, the current measures generally carry out one or several improvements, and do not solve the problem of the heat treatment furnace from the source. In view of the above-mentioned problems, the present invention changes the thermal resistance heating mode of the traditional heat treatment furnace, replaces the thermal resistance with a heat pipe to supply heat to the heat treatment furnace, and also uses natural gas or coal gas and industrial high-temperature waste gas to replace electric energy in the energy structure, which not only improves energy efficiency. Utilize efficiency, also can carry out large-scale industrialized production.
发明内容 Contents of the invention
本发明的目的是针对现有的热处理炉大多使用电能作为加热能源而造成的能效低，耗能大的问题，设计一种能直接利用燃气热能或工业废气热能进行加热的可控热管式燃气热处理炉。 The purpose of the present invention is to design a controllable heat pipe type gas heat treatment that can directly use gas heat energy or industrial waste gas heat energy for heating in view of the problems of low energy efficiency and large energy consumption caused by the use of electric energy as heating energy in most existing heat treatment furnaces furnace.
本发明的技术方案是： Technical scheme of the present invention is:
一种可控热管式燃气热处理炉，其特征是它由燃气炉1和热处理炉12组成，热处理炉12的一端支承在燃气炉1上，另一端支承在支架17上，重力热管上端的冷凝端位于热处理炉12中用于对热处理炉12的炉膛进行加热，直管型重力热管下端的蒸发端穿过热处理炉12和燃气炉1的炉壁位于燃气炉1用于吸收燃气炉1产生的热量；所述的燃气炉1和热处理炉12均连接有使其内部温度均匀的通风装置。 A controllable heat pipe type gas heat treatment furnace, characterized in that it is composed of a gas furnace 1 and a heat treatment furnace 12, one end of the heat treatment furnace 12 is supported on the gas furnace 1, and the other end is supported on the bracket 17, the condensation end of the upper end of the gravity heat pipe Located in the heat treatment furnace 12 for heating the hearth of the heat treatment furnace 12, the evaporation end of the lower end of the straight tube type gravity heat pipe passes through the furnace wall of the heat treatment furnace 12 and the gas furnace 1 and is located in the gas furnace 1 to absorb the heat generated by the gas furnace 1 ; The gas furnace 1 and the heat treatment furnace 12 are connected with a ventilation device to make the internal temperature uniform.
所述的重力热管由高温重力热管9、中温重力热管23和低温重力热管24组成，中温重力热管23和低温重力热管24位于燃气炉1中的一端均通过各自的隔热门25与燃气炉1的燃烧室相连通，隔热门25受控于温度控制器，燃气炉1内的温度大于中温重力热管23的工作温度时，中温重力热管23和低温重力热管24的隔热门均关闭，低温重力热管24的隔热门只有在燃气炉内温度低于其工作温度时才开启。 Described gravity heat pipe is made up of high-temperature gravity heat pipe 9, medium-temperature gravity heat pipe 23 and low-temperature gravity heat pipe 24, and one end of medium-temperature gravity heat pipe 23 and low-temperature gravity heat pipe 24 is located in gas furnace 1 and is connected with gas furnace 1 through respective insulation door 25. The combustion chambers are connected, and the insulating door 25 is controlled by the temperature controller. When the temperature in the gas furnace 1 is higher than the working temperature of the medium-temperature gravity heat pipe 23, the heat-insulation doors of the medium-temperature gravity heat pipe 23 and the low-temperature gravity heat pipe 24 are all closed, and the low-temperature gravity heat pipe 24 is closed. The insulating door of the gas furnace will only open when the temperature inside the gas furnace is lower than its operating temperature.
所述的重力热管为带翅片的、无吸液芯的重力热管。 The gravity heat pipe is a gravity heat pipe with fins and without a liquid-absorbing core.
所述的燃气炉1的燃气进气管19、空气进气管21和废气排气管20中安装有用于热量回收的弯折型翅片式、无吸液芯的重力热管。 The gas inlet pipe 19, the air inlet pipe 21 and the exhaust gas exhaust pipe 20 of the gas furnace 1 are equipped with bent-type finned gravity heat pipes without liquid-absorbing cores for heat recovery.
所述的燃气炉1直接通入火力发电站或垃圾焚烧的高温废气为插入其燃烧腔中的直管式重力热管的蒸发段供热。 The gas furnace 1 directly feeds high-temperature waste gas from a thermal power station or garbage incineration to provide heat for the evaporation section of the straight-tube gravity heat pipe inserted into the combustion chamber.
本发明的有益效果： Beneficial effects of the present invention:
1.本发明的可控热管式燃气热处理炉，不采用热电阻加热，而是利用具有高效传热性能的热管作为热源的传导介质，给热处理炉供热升温，改变了热处理炉的加热方式，从根本上解决了现今热处理炉的高耗能问题。 1. The controllable heat pipe type gas heat treatment furnace of the present invention does not use thermal resistance heating, but uses a heat pipe with high-efficiency heat transfer performance as the conduction medium of the heat source to supply heat to the heat treatment furnace to raise the temperature, changing the heating method of the heat treatment furnace, It fundamentally solves the problem of high energy consumption of today's heat treatment furnaces.
2.本发明的热处理炉的热源，有多种供热方式，如采用天然气和空气混合燃烧加热的方式，还可采用高温废气进行供热，减少了电能的使用，降低成本，低碳环保，可广泛应用于大型工业生产。更为重要的是,由于采用了热管技术传热,减少了直接采用燃气供热可能引起的热处理件的质量问题,并且相对于电加热降低了生产成本。 2. The heat source of the heat treatment furnace of the present invention has a variety of heating methods, such as using natural gas and air mixed combustion heating, and high-temperature waste gas can also be used for heating, which reduces the use of electric energy, reduces costs, and is low-carbon and environmentally friendly. It can be widely used in large-scale industrial production. More importantly, due to the use of heat pipe technology for heat transfer, the quality problems of heat treatment parts that may be caused by direct gas heating are reduced, and the production cost is reduced compared with electric heating.
3.本发明提出了高温热管、中温热管和常温热管混合搭配使用的原则，最大程度的利了热量，不让热量白白浪费，提高了热传导的效率；三种类型热管采用梯度传热原则、协同工作，且每类热管都在一段温度区间工作，既提高了热管的工作效率，又保证其在安全温度范围内工作。 3. The invention proposes the principle of mixing and matching high-temperature heat pipes, medium-temperature heat pipes and normal-temperature heat pipes, which maximizes the use of heat, prevents waste of heat, and improves the efficiency of heat conduction; the three types of heat pipes adopt the principle of gradient heat transfer , work together, and each type of heat pipe works in a certain temperature range, which not only improves the working efficiency of the heat pipe, but also ensures that it works within a safe temperature range.
4.本发明热管传热系统，采用的热管属于重力热管，也称两相闭式热虹吸管，热管传热系统采用无吸液芯的重力热管，可以大大降低成本，还可防止热处理炉内的热量反传给燃气炉，造成热量的损失。 4. The heat pipe heat transfer system of the present invention adopts a gravity heat pipe, also known as a two-phase closed thermosiphon, and the heat pipe heat transfer system adopts a gravity heat pipe without a liquid-absorbing core, which can greatly reduce costs and prevent heat treatment in the furnace. The heat is transferred back to the gas furnace, causing heat loss.
5.本发明可控热管式燃气热处理炉，采用风机加快炉内空气的流动，以此来提高热管传热系统翅片管的吸热和散热的效率。 5. The controllable heat pipe gas-fired heat treatment furnace of the present invention uses a fan to speed up the flow of air in the furnace, thereby improving the heat absorption and heat dissipation efficiency of the finned tubes of the heat pipe heat transfer system.
6.本发明可控热管式燃气热处理炉，使用的热管可靠性高，可以大大延长炉体的使用寿命。由热管束组成的换热设备中的单根热管损坏对设备的换热影响不大，即使部分热管损坏也不会影响设备正常运行，工作可靠性高。 6. The controllable heat pipe type gas heat treatment furnace of the present invention uses heat pipes with high reliability, which can greatly prolong the service life of the furnace body. The damage of a single heat pipe in the heat exchange equipment composed of heat pipe bundles has little effect on the heat exchange of the equipment, even if some heat pipes are damaged, it will not affect the normal operation of the equipment, and the work reliability is high.
7.本发明可控热管式燃气热处理炉，通过隔热门的设计可以有效的使三种类型的热管协同工作，既避免了热管超出其工作温度区间造成的损坏，又提高了热管的工作效率。 7. The controllable heat pipe type gas heat treatment furnace of the present invention can effectively make the three types of heat pipes work together through the design of the insulation door, which not only avoids the damage caused by the heat pipe exceeding its working temperature range, but also improves the working efficiency of the heat pipe.
8.本发明可控热管式燃气热处理炉，结构简单，制造成本相对低廉；可利用废气余热，节能环保；可靠性高；可应用于大规模的金属零件热处理。 8. The controllable heat pipe gas heat treatment furnace of the present invention has a simple structure and relatively low manufacturing cost; it can utilize the waste heat of waste gas, which is energy-saving and environmentally friendly; it has high reliability; it can be applied to large-scale heat treatment of metal parts.
附图说明 Description of drawings
图1是本发明的结构示意图。 Fig. 1 is a structural schematic diagram of the present invention.
图2是图1的A-A剖视图。 Fig. 2 is a cross-sectional view along line A-A of Fig. 1 .
图3是图1的B-B剖视图。 Fig. 3 is a B-B sectional view of Fig. 1 .
图中：1燃气炉；12热处理炉；19燃气进口；21空气进口；20废气出口；2、3、4异型重力热管（带有翅片管），其中2高温热管、3中温热管、3常温热管；9、23、24长直型重力热管（带有翅片管），其中9高温热管、23中温热管、24常温热管；17、18炉子支架；6、16风机（耐高温风扇）；8、15耐高温叶片；5、11测温装置；22气流阀；13滑轮；14升降式滑动门；25隔热门位置（图中未画出隔热门，可采用现有技术自行设计制造）；7钢板；10硅酸铝保温层；26耐火砖。 In the figure: 1 gas furnace; 12 heat treatment furnace; 19 gas inlet; 21 air inlet; 20 exhaust gas outlet; 3 normal temperature heat pipes; 9, 23, 24 long straight gravity heat pipes (with finned tubes), of which 9 high temperature heat pipes, 23 medium temperature heat pipes, 24 normal temperature heat pipes; 17, 18 furnace brackets; 6, 16 fans (high temperature resistant fan); 8, 15 high temperature resistant blades; 5, 11 temperature measuring device; 22 airflow valve; 13 pulley; 14 lifting sliding door; manufacturing); 7 steel plates; 10 aluminum silicate insulation layer; 26 refractory bricks.
具体实施方式 Detailed ways
下面结合附图和实施例对本发明作进一步的说明。 The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
如图1-3所示。 As shown in Figure 1-3.
一种可控热管式燃气热处理炉，它由燃气炉1和热处理炉12组成，如图1所示，热处理炉12的一端支承在燃气炉1上，另一端支承在支架17上，燃气炉1可直接支承在地面，也可支承在支架18上，重力热管上端的冷凝端位于热处理炉12中用于对热处理炉12的炉膛进行加热，直管型重力热管下端的蒸发端穿过热处理炉12和燃气炉1的炉壁位于燃气炉1用于吸收燃气炉1产生的热量；所述的燃气炉1和热处理炉12均连接有使其内部温度均匀的通风装置，燃气炉的通风装置由风机16和耐高温叶片15组成，风机安装在炉体外，耐高温叶片位于燃气炉膛中，热处理炉的通风装置由风机6和耐高温叶片7组成，风机6位于炉膛外，耐高温叶片7安装在安装在执处理炉膛内，为了给温控装置提供依据，在热处理炉中安装有测温装置11（温度传感器），燃气炉中安装有测温装置5（温度传感器）。具体实施时，为了提高重力热管的使用寿命，重力热管采用高温重力热管9、中温重力热管23和低温重力热管24的组合方式，如图3所示，高温重力热管9、中温重力热管23和低温重力热管24均采用带翅片的、无吸液芯的重力热管，中温重力热管23和低温重力热管24位于燃气炉1中的一端均通过各自的隔热门25与燃气炉1的燃烧室相连通，隔热门25受控于温度控制器，燃气炉1内的温度大于中温重力热管23的工作温度时，中温重力热管23和低温重力热管24的隔热门均关闭，低温重力热管24的隔热门只有在燃气炉内温度低于其工作温度时才开启。为了提高能源利用液，所述的燃气炉1的燃气进气管19、空气进气管21和废气排气管20中安装有用于热量回收的弯折型翅片式、无吸液芯的重力热管，如图2所示。此外，所述的燃气炉1直接通入火力发电站或垃圾焚烧的高温废气为插入其燃烧腔中的直管式重力热管的蒸发段供热。 A controllable heat pipe gas heat treatment furnace, which is composed of a gas furnace 1 and a heat treatment furnace 12, as shown in Figure 1, one end of the heat treatment furnace 12 is supported on the gas furnace 1, and the other end is supported on a bracket 17, the gas furnace 1 It can be directly supported on the ground or supported on the bracket 18. The condensing end of the upper end of the gravity heat pipe is located in the heat treatment furnace 12 for heating the hearth of the heat treatment furnace 12, and the evaporation end of the lower end of the straight tube type gravity heat pipe passes through the heat treatment furnace 12. and the furnace wall of the gas furnace 1 is located in the gas furnace 1 for absorbing the heat generated by the gas furnace 1; the gas furnace 1 and the heat treatment furnace 12 are all connected with a ventilation device to make the internal temperature uniform, and the ventilation device of the gas furnace is composed of a fan 16 and high-temperature-resistant blades 15, the fan is installed outside the furnace, the high-temperature-resistant blades are located in the gas furnace, the ventilation device of the heat treatment furnace is composed of fan 6 and high-temperature-resistant blades 7, the fan 6 is located outside the furnace, and the high-temperature-resistant blades 7 are installed in the installation In the processing furnace, in order to provide a basis for the temperature control device, a temperature measuring device 11 (temperature sensor) is installed in the heat treatment furnace, and a temperature measuring device 5 (temperature sensor) is installed in the gas furnace. During specific implementation, in order to improve the service life of the gravity heat pipe, the gravity heat pipe adopts the combination mode of the high temperature gravity heat pipe 9, the medium temperature gravity heat pipe 23 and the low temperature gravity heat pipe 24, as shown in Figure 3, the high temperature gravity heat pipe 9, the medium temperature gravity heat pipe 23 and the low temperature The gravity heat pipes 24 are finned gravity heat pipes without a liquid-absorbing core. The ends of the medium-temperature gravity heat pipe 23 and the low-temperature gravity heat pipe 24 in the gas furnace 1 are connected to the combustion chamber of the gas furnace 1 through their respective insulating doors 25. , the insulating door 25 is controlled by the temperature controller. When the temperature in the gas furnace 1 is greater than the working temperature of the medium-temperature gravity heat pipe 23, the heat-insulation doors of the medium-temperature gravity heat pipe 23 and the low-temperature gravity heat pipe 24 are all closed, and the low-temperature gravity heat pipe 24 has only one heat-insulation door. It is only turned on when the temperature inside the gas furnace is lower than its operating temperature. In order to improve energy utilization, the gas inlet pipe 19, the air inlet pipe 21 and the exhaust gas exhaust pipe 20 of the gas furnace 1 are equipped with a bent fin type gravity heat pipe without a liquid-absorbing core for heat recovery, as shown in picture 2. In addition, the gas furnace 1 directly feeds high-temperature waste gas from thermal power plants or waste incineration to provide heat for the evaporation section of the straight-tube gravity heat pipe inserted into the combustion chamber.
详述如下： The details are as follows:
如图1-3所示，本发明可控热管式燃气热处理炉，包括燃气炉1、热处理炉12、热管传热系统2、3、4、9、23、24、测温控制系统(图中未画出)。所述的燃气炉1由燃气进口19、空气进口21、废气出口20、重力热管2、3、4、9、23、24组成、风机16、测温装置5以及气流阀22（其余两个气流阀未标出）组成；热处理炉12由重力热管9/23/24、测温装置11、风机6和升降式滑动门14组成。 As shown in Figures 1-3, the controllable heat pipe type gas heat treatment furnace of the present invention includes a gas furnace 1, a heat treatment furnace 12, a heat pipe heat transfer system 2, 3, 4, 9, 23, 24, a temperature measurement control system (in the figure not shown). The gas furnace 1 is composed of gas inlet 19, air inlet 21, waste gas outlet 20, gravity heat pipes 2, 3, 4, 9, 23, 24, fan 16, temperature measuring device 5 and airflow valve 22 (the remaining two airflow The valve is not marked); the heat treatment furnace 12 is composed of the gravity heat pipe 9/23/24, the temperature measuring device 11, the fan 6 and the lifting sliding door 14.
天然气由管道通过进口19进入燃气炉，空气经管道由进口21送入炉内，二者相混合经点火装置点火燃烧，其流速及流量可由各自的阀门控制；耐高温风机16工作，既可方便燃气和空气混合，又可将燃烧产生的热量快速传递给翅片管；翅片管将吸收来的热量传递给重力热管9，重力热管9内蒸发段的液体吸热产生高温蒸汽，高温蒸汽上升到热处理炉内重力热管9冷凝段处散热,将热量由热管传递给翅片；耐高温风机6工作加快翅片管的散热，加快热处理炉内的温度趋于均匀；重力热管的使用使得热处理炉内的热量不会反传给燃烧炉，不会造成热量的损失。热处理炉的升降式滑动门14密封性好，隔热保温性能优异且开关方便。 Natural gas enters the gas furnace through the inlet 19 through the pipeline, and the air is sent into the furnace through the inlet 21 through the pipeline. The two are mixed and ignited and burned by the ignition device. The flow rate and flow can be controlled by respective valves; Gas and air are mixed, and the heat generated by combustion can be quickly transferred to the finned tube; the finned tube transfers the absorbed heat to the gravity heat pipe 9, and the liquid in the evaporation section of the gravity heat pipe 9 absorbs heat to generate high-temperature steam, and the high-temperature steam rises The heat is dissipated at the condensing section of the gravity heat pipe 9 in the heat treatment furnace, and the heat is transferred from the heat pipe to the fins; the high temperature resistant fan 6 works to speed up the heat dissipation of the fin tubes, and accelerates the temperature in the heat treatment furnace to become uniform; the use of the gravity heat pipe makes the heat treatment furnace The heat inside will not be transferred back to the combustion furnace, and will not cause heat loss. The lifting sliding door 14 of the heat treatment furnace has good sealing performance, excellent heat insulation performance and convenient opening and closing.
燃烧炉内排出的废气属于高温气体，经废气出口20由高温热管2、中温热管3、常温热管4三种类型的重力热管分别依次吸热，然后由热管将热量传给燃气和空气预热，三种类型热管采用梯度传热原则、协同工作，且每类热管都在一段温度区间工作，既提高了热管的工作效率，又保证其在安全温度范围内工作；最终燃气炉排到空气中的废气温度将会降到100度左右。其中，高温热管2、9采用钠不锈钢管，工作温度范围在500-1200℃；中温热管3、23采用汞奥氏体不锈钢管工作温度范围在250-650℃；常温热管4、24采用水碳钢管，工作温度范围在30-250℃。 The exhaust gas discharged from the combustion furnace belongs to high-temperature gas. Through the exhaust gas outlet 20, three types of gravity heat pipes, namely high-temperature heat pipe 2, medium-temperature heat pipe 3 and normal-temperature heat pipe 4, respectively absorb heat in sequence, and then the heat is transferred to the gas and air preheating by the heat pipe. Heat, the three types of heat pipes adopt the principle of gradient heat transfer and work together, and each type of heat pipe works in a certain temperature range, which not only improves the working efficiency of the heat pipe, but also ensures that it works within a safe temperature range; The temperature of the exhaust gas in the engine will drop to about 100 degrees. Among them, the high-temperature heat pipes 2 and 9 use sodium stainless steel pipes, and the working temperature range is 500-1200°C; the medium-temperature heat pipes 3 and 23 use mercury austenitic stainless steel pipes, and the working temperature range is 250-650°C; Water carbon steel pipe, the working temperature range is 30-250 ℃.
测温控制系统可采用常规技术加以实现，它能根据燃烧炉1、热处理炉12内的温度以及设定的温度，控制中温热管23和常温热管24蒸发段隔热门25（隔热门在图中只标出了位置）的开关，还可控制燃气和空气进口的气流阀22启闭及流量大小；如果燃烧炉1内的温度超过中温热管23或者常温热管24的工作范围，相对应的蒸发段的隔热门25将会关闭，这样就避免了热管的损坏；一旦燃气炉内温度不超过中温热管23或者常温热管24的工作上限，此时开启隔热门，既提高了热管传热效率，又充分利用了炉内的剩余热量。此处燃气炉内高温热管的蒸发段不设计隔热门，而热处理炉内高温、中温和常温热管的冷凝段均不设计隔热门，中温热管和常温热管蒸发段的隔热门是分开的。 The temperature measurement control system can be realized by conventional technology, and it can control the medium-temperature heat pipe 23 and the normal-temperature heat pipe 24 evaporation section insulation door 25 according to the temperature in the combustion furnace 1 and the heat treatment furnace 12 and the temperature of setting (the heat insulation door is shown in Fig. Only the position is marked in the middle) switch, can also control the opening and closing of the airflow valve 22 and the flow rate of the gas and air inlet; if the temperature in the combustion furnace 1 exceeds the working range of the medium temperature heat pipe 23 or the normal temperature heat pipe 24, the corresponding The insulation door 25 of the evaporating section will be closed, so that the damage of the heat pipe has been avoided; once the temperature in the gas furnace does not exceed the working upper limit of the medium temperature heat pipe 23 or the normal temperature heat pipe 24, the heat insulation door is opened at this time, which not only improves the heat transfer rate of the heat pipe. The thermal efficiency is high, and the residual heat in the furnace is fully utilized. Here, the evaporation section of the high-temperature heat pipe in the gas furnace is not designed with an insulation door, while the condensation section of the high-temperature, medium-temperature and normal-temperature heat pipes in the heat treatment furnace is not designed with an insulation door. The insulation doors of the medium-temperature heat pipe and the evaporation section of the normal-temperature heat pipe are separated.
本发明热处理炉结构简单，使用新型的热管供热方式，可以改进现今电热处理炉的不足之处，应用到热处理行业中可以节约大量的能源，具有广泛应用前景。 The heat treatment furnace of the invention has a simple structure, uses a novel heat pipe heating mode, can improve the shortcomings of current electric heat treatment furnaces, can save a lot of energy when applied to the heat treatment industry, and has wide application prospects.
本发明的燃气炉是一燃气和空气混合燃烧的燃烧室，燃气可以是天然气或者煤气等可燃性气体；所述的热处理炉是一由高温、中温、常温三种类型热管供热的热处理炉；所述的测温控制系统是一程控器，可以实时监测燃气炉和热处理炉内的温度，然后根据用户设定的温度，自动调节中温热管和常温热管蒸发段隔热门的开关，来控制热管的工作；所述的热管传热系统是一带翅片管的重力热管，由高温、中温、常温三种类型的重力热管组成。本发明的热管传温系统由高温、中温、低温三种类型的带翅片管的重力热管组成，每种类型的热管都是由多根热管组成一个热管束，其根数根据炉体的大小及传热速率计算；燃气炉内的中温热管或常温热管都有一个隔热门与炉体相连接，通过隔热门的开关来控制热管的工作；通过设定温度以及实时测温，由测温控制系统来控制哪种类型的热管束工作。热处理炉可以满足从室温到1000℃以上范围的温度，实现从低温到高温的连续热处理；改变高温热管的工作介质，甚至可以实现超高温热处理。热管传热系统包括两种结构类型的重力热管，一种是长直型重力热管9、23、24，如图3；另外一种是弯折型重力热管2、3、4，如图2，属于异型重力热管。采用无吸液芯的重力热管，不仅可以降低成本，而且可以不浪费能源，使热处理炉内的热量无法传到燃气炉内。燃气炉供热可以使用火力发电站和垃圾焚烧的高温废气供热。 The gas furnace of the present invention is a combustor in which gas and air are mixed and burned, and the gas can be combustible gases such as natural gas or coal gas; the heat treatment furnace is a heat treatment furnace supplied with heat by three types of heat pipes: high temperature, medium temperature and normal temperature; The temperature measurement control system is a program controller, which can monitor the temperature in the gas furnace and heat treatment furnace in real time, and then automatically adjust the switch of the heat insulation door of the medium temperature heat pipe and the evaporation section of the normal temperature heat pipe according to the temperature set by the user to control The work of the heat pipe; the heat pipe heat transfer system is a gravity heat pipe with finned tubes, which is composed of three types of gravity heat pipes: high temperature, medium temperature and normal temperature. The heat pipe temperature transfer system of the present invention is composed of three types of gravity heat pipes with finned tubes, namely high temperature, medium temperature and low temperature. and heat transfer rate calculation; the medium-temperature heat pipe or normal-temperature heat pipe in the gas furnace has an insulating door connected to the furnace body, and the work of the heat pipe is controlled by the switch of the insulating door; Temperature control system to control which type of heat pipe bundle work. The heat treatment furnace can meet the temperature range from room temperature to above 1000 ℃, realize continuous heat treatment from low temperature to high temperature; change the working medium of high temperature heat pipe, and even realize ultra-high temperature heat treatment. The heat pipe heat transfer system includes two structural types of gravity heat pipes, one is long straight gravity heat pipes 9, 23, 24, as shown in Figure 3; the other is bent gravity heat pipes 2, 3, 4, as shown in Figure 2, It belongs to special-shaped gravity heat pipe. The use of gravity heat pipes without liquid-absorbing cores can not only reduce costs, but also avoid wasting energy, so that the heat in the heat treatment furnace cannot be transferred to the gas furnace. Gas furnace heating can use high-temperature waste gas from thermal power plants and waste incineration.
本发明未涉及部分均与现有技术相同或可采用现有技术加以实现。 The parts not involved in the present invention are the same as the prior art or can be realized by adopting the prior art.
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Effective date of registration: 20190102 Address after: 226561 Industrial Park of Mojing Town, Rugao City, Nantong City, Jiangsu Province Patentee after: Nantong Haitai Kete Precision Material Co., Ltd. Address before: 212013 No. 301, Xuefu Road, Zhenjiang, Jiangsu Patentee before: Jiangsu University |