CN106288370A - Gas fired-boiler based on multi-hole medium combustion technology - Google Patents
Gas fired-boiler based on multi-hole medium combustion technology Download PDFInfo
- Publication number
- CN106288370A CN106288370A CN201610807386.6A CN201610807386A CN106288370A CN 106288370 A CN106288370 A CN 106288370A CN 201610807386 A CN201610807386 A CN 201610807386A CN 106288370 A CN106288370 A CN 106288370A
- Authority
- CN
- China
- Prior art keywords
- chamber
- combustion
- water
- heat exchange
- tempering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40
-
- 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
- F24H9/0005—Details for water heaters
-
- 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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
本发明涉及基于多孔介质燃烧技术的燃气锅炉，包括预混器、若干数量的燃烧换热单元和连接箱体；所述若干数量的燃烧换热单元通过连接箱体连接，燃烧换热单元围绕连接箱体呈中心对称分布，连接箱体和燃烧换热单元外部包裹有外壳，在外壳与连接箱体和燃烧换热单元之间填充有保温材料，预混器设置在连接箱体的上部；所述燃烧换热单元包括防回火结构、燃烧室、尾部换热器和进气室，所述进气室的侧壁面焊接有两个预混气体进口管；所述防回火结构由防回火水室和防回火进气通道构成，防回火进气通道通过焊接嵌入在防回火水室中，防回火水室前端与进气室连接，在防回火水室后端连接燃烧室，在燃烧室的出口布置有尾部换热器。
The invention relates to a gas boiler based on porous medium combustion technology, including a premixer, a number of combustion heat exchange units and a connecting box; the number of combustion heat exchange units are connected through the connection box, and the combustion heat exchange units are connected around The box is symmetrically distributed in the center, and the connecting box and the combustion heat exchange unit are wrapped with a shell, and the insulation material is filled between the shell and the connecting box and the combustion heat exchange unit, and the premixer is arranged on the upper part of the connecting box; The combustion heat exchange unit includes an anti-backfire structure, a combustion chamber, a tail heat exchanger and an air intake chamber, and two premixed gas inlet pipes are welded on the side wall of the air intake chamber; The fire water chamber and the anti-tempering air intake channel are composed of the anti-tempering air intake channel is embedded in the anti-tempering water chamber by welding, the front end of the anti-tempering water chamber is connected with the air intake chamber, and the rear end of the anti-tempering water chamber is connected In the combustion chamber, a tail heat exchanger is arranged at the outlet of the combustion chamber.
Description
技术领域technical field
本发明涉及用换热水室包围燃烧室并通过换热装置实现余热回收的热水炉技术领域，具体地说是一种基于多孔介质燃烧技术的燃气锅炉。The invention relates to the technical field of water heaters which surround a combustion chamber with a water exchange chamber and realize waste heat recovery through a heat exchange device, in particular to a gas boiler based on porous medium combustion technology.
背景技术Background technique
随着我国能源结构的优化调整，燃气锅炉因具有经济、高效、环保的特性而倍受关注。但是世界各国对能源利用效率和环境污染物排放也都提出了更高的要求，现有的燃气锅炉热效率较低，污染物排放较高。为了提高锅炉的效率，现有的技术是通过增大换热面积或增加余热回收装置，这使得锅炉的结构更加复杂，且体积较大。现有燃气锅炉几乎都采用传统燃烧方式，燃烧区域温度较高，NOx的排放量较大。With the optimization and adjustment of my country's energy structure, gas-fired boilers have attracted much attention because of their economical, efficient and environmentally friendly features. However, countries all over the world have put forward higher requirements on energy utilization efficiency and environmental pollutant discharge. The existing gas-fired boilers have low thermal efficiency and high pollutant discharge. In order to improve the efficiency of the boiler, the existing technology is to increase the heat exchange area or increase the waste heat recovery device, which makes the structure of the boiler more complicated and the volume larger. Almost all existing gas-fired boilers adopt traditional combustion methods, the temperature of the combustion area is relatively high, and the emission of NO x is relatively large.
发明内容Contents of the invention
本发明所要解决的技术问题是：提供一种基于多孔介质燃烧技术的燃气锅炉，由多个燃烧换热单元组成，采用对称排列的炉型结构。每个燃烧换热单元中的燃烧室被换热水室分割成若干个小区域，燃烧室内填充非均匀多孔介质材料，充分利用多孔介质燃烧及换热特性，既保证了换热效果，又限制了燃烧温度，实现了低NOx排放。克服了现有燃气锅炉体积大、热效率低和因燃烧温度过高而NOx排放高的缺点。根据锅炉的容量可以采用2-12个燃烧换热单元对称布置，使得燃气锅炉具有更大的负荷调节能力。The technical problem to be solved by the present invention is to provide a gas boiler based on porous medium combustion technology, which is composed of a plurality of combustion heat exchange units and adopts a symmetrically arranged furnace structure. The combustion chamber in each combustion heat exchange unit is divided into several small areas by the water exchange chamber, and the combustion chamber is filled with non-uniform porous media materials, making full use of the combustion and heat transfer characteristics of porous media, which not only ensures the heat transfer effect, but also limits the The combustion temperature is improved, and low NOx emissions are achieved. The disadvantages of large volume, low thermal efficiency and high NOx emission due to excessive combustion temperature of the existing gas boiler are overcome. According to the capacity of the boiler, 2-12 combustion heat exchange units can be arranged symmetrically, so that the gas boiler has a greater load adjustment capacity.
本发明解决该技术问题所采用的技术方案是：The technical solution adopted by the present invention to solve the technical problem is:
基于多孔介质燃烧技术的燃气锅炉，包括预混器、若干数量的燃烧换热单元和连接箱体；所述若干数量的燃烧换热单元通过连接箱体连接，燃烧换热单元围绕连接箱体呈中心对称分布，连接箱体和燃烧换热单元外部包裹有外壳，在外壳与连接箱体和燃烧换热单元之间填充有保温材料，预混器设置在连接箱体的上部；A gas boiler based on porous media combustion technology, including a premixer, a number of combustion heat exchange units and a connection box; the number of combustion heat exchange units are connected through the connection box, and the combustion heat exchange unit surrounds the connection box in a The center is symmetrically distributed, the connecting box and the combustion heat exchange unit are wrapped with a shell, and the insulation material is filled between the shell and the connecting box and the combustion heat exchange unit, and the premixer is arranged on the upper part of the connecting box;
所述燃烧换热单元包括防回火结构、燃烧室、尾部换热器和进气室，所述进气室的侧壁面焊接有两个预混气体进口管；所述防回火结构由防回火水室和防回火进气通道构成，防回火进气通道通过焊接嵌入在防回火水室中，防回火水室前端与进气室连接，在防回火水室后端连接燃烧室，在燃烧室的出口布置有尾部换热器，燃烧室和尾部换热器均置于燃烧室内壳中，通过防回火进气通道联通进气室和燃烧室；在防回火进气通道内填满小孔隙多孔介质材料；所述燃烧室的内壳内间隔分布有若干数量的换热水室，燃烧室由若干数量的换热水室分割成多个燃烧小区域，在每个燃烧室小区域内填充有非均匀多孔介质材料，在每个燃烧室小区域的上下两端，且靠近燃烧室内壳处设置耐火砖；防回火进气通道的列数与燃烧室小区域的数量相同；在燃烧室上游，且与防回火水室相连的部分留有空隙，在此空隙内固定安装点火器电极；The combustion heat exchange unit includes an anti-tempering structure, a combustion chamber, a tail heat exchanger and an air intake chamber, and two premixed gas inlet pipes are welded on the side wall of the air intake chamber; the anti-tempering structure consists of an anti-tempering structure The tempering water chamber and the anti-tempering air intake channel are formed. The anti-tempering air intake channel is embedded in the anti-tempering water chamber by welding. The front end of the anti-tempering water chamber is connected with the air intake chamber, and the back end It is connected to the combustion chamber, and a tail heat exchanger is arranged at the outlet of the combustion chamber. Both the combustion chamber and the tail heat exchanger are placed in the combustion chamber shell, and the intake chamber and the combustion chamber are connected through the anti-tempering air inlet passage; The air intake channel is filled with small-pore porous media materials; a certain number of water exchange chambers are distributed in the inner shell of the combustion chamber at intervals, and the combustion chamber is divided into a plurality of small combustion areas by the number of water exchange chambers. Each small area of the combustion chamber is filled with non-uniform porous medium material, and refractory bricks are arranged at the upper and lower ends of each small area of the combustion chamber, and near the inner shell of the combustion chamber; The number is the same; there is a gap in the upstream of the combustion chamber and the part connected to the anti-tempering water chamber, and the igniter electrode is fixedly installed in this gap;
防回火水室上焊接有防回火水室进水管和防回火水室出水管，换热水室上焊接有换热水室出水管和换热水室进水管，所述换热水室进水管的两端封闭，并设有一个入口和若干数量个出口，出口的数量与换热水室的数量一致，每个出口分别联通一个换热水室；防回火水室出水管与换热水室进水管的入口连接，每个燃烧换热单元的若干数量的换热水室的出口均与换热水室出水管相联通；The anti-tempering water chamber is welded with the anti-tempering water chamber inlet pipe and the anti-tempering water chamber outlet pipe, and the water exchange chamber is welded with the water exchange chamber outlet pipe and the water exchange chamber inlet pipe. The two ends of the water inlet pipe in the chamber are closed, and there is an inlet and a number of outlets. The number of outlets is consistent with the number of water exchange chambers, and each outlet is connected to a water exchange chamber; the outlet pipe of the anti-tempering water chamber is connected to The inlet of the water exchange chamber inlet pipe is connected, and the outlets of a certain number of water exchange chambers of each combustion heat exchange unit are connected with the outlet pipe of the water exchange chamber;
所述尾部换热器包括尾部换热管、尾部换热器入口集管和尾部换热器出口集管，尾部换热管的两端分别焊接在尾部换热器入口集管和尾部换热器出口集管上，尾部换热管与燃烧室内壳的侧壁固定连接；尾部换热器出口集管和防回火水室进水管之间通过连接水管相连；The tail heat exchanger includes a tail heat exchange tube, a tail heat exchanger inlet header and a tail heat exchanger outlet header, and the two ends of the tail heat exchange tube are respectively welded to the tail heat exchanger inlet header and the tail heat exchanger On the outlet header, the tail heat exchange tube is fixedly connected to the side wall of the combustion chamber shell; the outlet header of the tail heat exchanger is connected to the inlet pipe of the anti-tempering water chamber through a connecting water pipe;
所述连接箱体包括若干数量的连接箱体侧板、连接箱体顶板和连接箱体底板，所述连接箱体侧板的数量与燃烧换热单元的数量一致，若干数量的连接箱体侧板、连接箱体顶板和连接箱体底板所围成的箱体空间构成烟气汇集室，每个连接箱体侧板分别与相应的燃烧换热单元的燃烧室内壳的侧板焊接在一起，连接箱体顶板和连接箱体底板分别与相应的燃烧换热单元的燃烧室内壳的顶板和底板焊接在一起；连接箱体的底部为倒棱锥状结构，连接箱体底板中心焊接有圆筒状的冷凝水汇集室，冷凝水汇集室上焊接有排水管和排烟管；The connecting box includes a number of connecting box side plates, connecting box top plates and connecting box bottom plates. The number of the connecting box side plates is consistent with the number of combustion heat exchange units. The box space surrounded by the board, the top plate of the connecting box and the bottom plate of the connecting box constitutes the flue gas collection chamber, and each side plate of the connecting box is welded together with the side plate of the combustion inner shell of the corresponding combustion heat exchange unit. The top plate of the connection box and the bottom plate of the connection box are welded together with the top plate and bottom plate of the combustion chamber shell of the corresponding combustion heat exchange unit; the bottom of the connection box is an inverted pyramid structure, and the center of the bottom plate of the connection box is welded with a cylindrical Condensed water collection chamber, the condensed water collection chamber is welded with a drain pipe and a smoke exhaust pipe;
连接箱体底部设置环状的锅炉入口集管，锅炉入口集管上焊接有锅炉进水管，锅炉入口集管上设置有与燃烧换热单元数量一致的若干数量的出水口，该出水口与相应的燃烧换热单元的尾部换热器入口集管连接，环状的锅炉入口集管上安装与燃烧换热单元数量一致的若干数量的水阀；连接箱体的顶部设置有环状的锅炉出口集管，锅炉出口集管上设置有与燃烧换热单元数量一致的若干个进水口和一个出水口，该进水口分别与相应燃烧换热单元的换热水室出水管连接，锅炉出水集管的出水口上焊接有热水出水管。A ring-shaped boiler inlet header is installed at the bottom of the connecting box. The boiler inlet header is welded with a boiler water inlet pipe. The boiler inlet header is provided with a number of water outlets consistent with the number of combustion heat exchange units. The water outlets are in line with the corresponding The tail heat exchanger inlet header of the combustion heat exchange unit is connected, and a number of water valves consistent with the number of combustion heat exchange units are installed on the annular boiler inlet header; the top of the connecting box is provided with an annular boiler outlet Header, the boiler outlet header is provided with a number of water inlets and a water outlet consistent with the number of combustion heat exchange units, the water inlets are respectively connected to the outlet pipes of the water exchange chamber of the corresponding combustion heat exchange unit, the boiler outlet header A hot water outlet pipe is welded on the water outlet.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
本发明突出的实质特点是：本发明采用非均匀多孔介质蓄热燃烧技术，燃烧更加稳定，燃烧强度大，换热效果好，污染物排放低。(1)燃烧室被换热水室分割成若干个小区域，冷水介质和加热介质紧密贴合，既保证了燃烧的强度，同时燃烧放热量迅速而高效的传递给冷水介质，降低了燃烧室内的燃烧温度；其方法就是在燃烧室内填充非均匀多孔介质材料，高温多孔介质中的热量通过辐射和导热的形式传递给换热水室内的冷水介质。(2)在燃烧室出口设置余热回收区，收集高温烟气的显热和水蒸汽的潜热；其方法是在燃烧器后端设置尾部换热器，使得高温烟气中的水蒸汽凝结而释放凝结热。(3)预混气在进入燃烧室前先通过防回火水室的进气通道，进气通道内填充有小孔隙多孔介质材料，对预混气体进行整流，提高其流速，防止回火；(4)换热水室的水是先经过尾部换热器预热后的水，有利于提高燃烧室壁面的温度，减少由于壁面过冷而出现冷凝水的问题，同时改善壁面处的燃烧条件，提高燃烧的完全程度。The outstanding substantive features of the present invention are: the present invention adopts non-uniform porous medium regenerative combustion technology, which has more stable combustion, high combustion intensity, good heat exchange effect and low pollutant emission. (1) The combustion chamber is divided into several small areas by the water exchange chamber. The cold water medium and the heating medium are closely bonded, which not only ensures the intensity of combustion, but also transfers the heat released by combustion to the cold water medium quickly and efficiently, reducing the temperature in the combustion chamber. The combustion temperature; the method is to fill the combustion chamber with non-uniform porous media materials, and the heat in the high-temperature porous media is transferred to the cold water medium in the water exchange chamber through radiation and heat conduction. (2) Set a waste heat recovery area at the outlet of the combustion chamber to collect the sensible heat of the high-temperature flue gas and the latent heat of water vapor; the method is to install a tail heat exchanger at the rear end of the burner to condense and release the water vapor in the high-temperature flue gas condensation heat. (3) Before the premixed gas enters the combustion chamber, it first passes through the air inlet channel of the anti-tempering water chamber, and the air inlet channel is filled with small-pore porous media materials to rectify the premixed gas to increase its flow rate and prevent backfire; (4) The water in the water exchange chamber is preheated by the tail heat exchanger first, which is beneficial to increase the temperature of the wall surface of the combustion chamber, reduce the problem of condensed water due to the overcooling of the wall surface, and improve the combustion conditions at the wall surface , Improve the completeness of combustion.
本发明的显著进步是：Significant progress of the present invention is:
(1)本发明基于多孔介质燃烧技术的燃气锅炉的燃烧室内多孔介质材料排列结构为非均匀型，流动阻力较小，燃烧更加稳定，燃烧室被换热水室分割成若干个小区域，分散燃烧，有效降低了燃烧温度，实现了低NOx的排放。(1) The arrangement structure of porous media materials in the combustion chamber of the gas boiler based on the porous media combustion technology of the present invention is non-uniform, the flow resistance is small, and the combustion is more stable. The combustion chamber is divided into several small areas by the water exchange chamber, and the dispersed Combustion effectively reduces the combustion temperature and achieves low NOx emissions.
(2)本发明基于多孔介质燃烧技术的燃气锅炉为中心对称结构，包含2-12个燃烧换热单元，可以根据热负荷的需求来控制部分单元工作，具有更大的负荷调节能力。(2) The gas-fired boiler based on the porous medium combustion technology of the present invention has a centrosymmetric structure, including 2-12 combustion heat exchange units, which can control the work of some units according to the demand of heat load, and has greater load adjustment capability.
(3)本发明基于多孔介质燃烧技术的燃气锅炉为冷凝式锅炉，最大限度地吸收了燃烧放热量，克服了现有技术的锅炉装置体积较大和热效率较低的缺点。(3) The gas-fired boiler based on the porous medium combustion technology of the present invention is a condensing boiler, which absorbs the heat of combustion to the greatest extent, and overcomes the disadvantages of larger volume and lower thermal efficiency of the boiler device in the prior art.
本发明利用多孔介质的强化换热特性使烟气在燃烧室内降低到很低，同时又在燃烧室尾部补充了尾部换热器，使烟气温度进一步降低，整个装置结构紧凑，比传统的锅炉体积大大缩小。The invention utilizes the enhanced heat transfer characteristics of the porous medium to reduce the flue gas to a very low level in the combustion chamber, and at the same time supplements a tail heat exchanger at the tail of the combustion chamber to further reduce the temperature of the flue gas. The volume is greatly reduced.
附图说明Description of drawings
下面结合附图和实施例对本发明进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
图1为本发明具有4个燃烧换热单元的基于多孔介质燃烧技术的燃气锅炉的正视剖面示意图；Fig. 1 is the schematic cross-sectional front view of a gas boiler based on porous media combustion technology with 4 combustion heat exchange units in the present invention;
图2为本发明具有4个燃烧换热单元的基于多孔介质燃烧技术的燃气锅炉的俯视剖面示意图；Fig. 2 is a top view cross-sectional schematic view of a gas boiler based on porous media combustion technology with four combustion heat exchange units in the present invention;
图3为本发明基于多孔介质燃烧技术的燃气锅炉图1所述实施案例在位置A-A处的剖面示意图；Fig. 3 is a schematic cross-sectional view at position A-A of the embodiment of the gas boiler based on the porous medium combustion technology in Fig. 1 of the present invention;
图4为本发明基于多孔介质燃烧技术的燃气锅炉图1所述实施案例在位置B-B处的剖面示意图；Fig. 4 is a schematic cross-sectional view at position B-B of the embodiment of the gas boiler based on porous media combustion technology in Fig. 1 of the present invention;
图5为具有6个燃烧换热单元的基于多孔介质燃烧技术的燃气锅炉实施例，连接箱体的俯视剖面示意图。Fig. 5 is a schematic top view sectional view of a connection box of an embodiment of a gas boiler based on porous media combustion technology with 6 combustion heat exchange units.
图中，1.预混气体进口管，2.进气室，3.保温材料，4.防回火进气通道，5.外壳，6.防回火水室进水管，7.连接水管，8.换热水室出水管，9.耐火砖，10.尾部换热器出口集管，11.锅炉出口集管，12.预混气体联络管，13.引射器，14.预混室，15.连接箱体侧板，16.连接箱体顶板，17.预混气体出口管，18.截止阀，19.空气喷嘴，20.燃气喷嘴，21.换热水室进水管，22.锅炉入口集管，23.水阀，24.尾部换热器入口集管，25.排水管，26.排烟管，27.冷凝水汇集室，28.连接箱体底板，29.尾部换热管，30.定位片，31.燃烧室内壳，32.点火器电极，33.防回火水室出水管，34.非均匀多孔介质材料，35.防回火水室，36.小孔隙多孔介质材料，37.锅炉进水管，38.热水出水管，39.换热水室，40.燃烧室。In the figure, 1. Premixed gas inlet pipe, 2. Air intake chamber, 3. Insulation material, 4. Anti-tempering air intake passage, 5. Shell, 6. Anti-tempering water chamber inlet pipe, 7. Connecting water pipe, 8. Outlet pipe of water exchange chamber, 9. Refractory brick, 10. Outlet header of tail heat exchanger, 11. Boiler outlet header, 12. Premixed gas connecting pipe, 13. Ejector, 14. Premixed chamber , 15. Connect the side plate of the box, 16. Connect the top plate of the box, 17. Premixed gas outlet pipe, 18. Stop valve, 19. Air nozzle, 20. Gas nozzle, 21. Water exchange chamber inlet pipe, 22. Boiler inlet header, 23. Water valve, 24. Tail heat exchanger inlet header, 25. Drain pipe, 26. Smoke exhaust pipe, 27. Condensed water collection chamber, 28. Connection box bottom plate, 29. Tail heat exchange Tube, 30. Positioning piece, 31. Combustion chamber shell, 32. Igniter electrode, 33. Anti-tempering water chamber outlet pipe, 34. Non-uniform porous medium material, 35. Anti-tempering water chamber, 36. Small pores and porous Medium material, 37. Boiler inlet pipe, 38. Hot water outlet pipe, 39. Exchange water chamber, 40. Combustion chamber.
具体实施方式detailed description
本发明基于多孔介质燃烧技术的燃气锅炉(简称锅炉，参见图1-4)包括预混器、若干数量的燃烧换热单元和连接箱体；所述若干数量的燃烧换热单元通过连接箱体连接，燃烧换热单元围绕连接箱体呈中心对称分布，连接箱体和燃烧换热单元外部包裹有外壳5，在外壳5与连接箱体和燃烧换热单元之间填充有保温材料3，防止热量的散失，预混器设置在连接箱体的上部；The gas-fired boiler based on the porous medium combustion technology of the present invention (referred to as the boiler, see Fig. 1-4) includes a premixer, a number of combustion heat exchange units and a connection box; the number of combustion heat exchange units passes through the connection box Connection, the combustion heat exchange unit is symmetrically distributed around the connection box, the outer shell 5 is wrapped around the connection box and the combustion heat exchange unit, and the insulation material 3 is filled between the shell 5 and the connection box and the combustion heat exchange unit to prevent For heat loss, the premixer is set on the upper part of the connecting box;
所述燃烧换热单元包括防回火结构、燃烧室40、尾部换热器和进气室2，所述进气室2的侧壁面焊接有两个预混气体进口管1；所述防回火结构由防回火水室35和防回火进气通道4构成，防回火进气通道4通过焊接嵌入在防回火水室35中，防回火水室35前端与进气室2连接，在防回火水室后端连接燃烧室40，在燃烧室40的出口布置有尾部换热器，燃烧室40和尾部换热器均置于燃烧室内壳31中，通过防回火进气通道4联通进气室2和燃烧室40；在防回火进气通道4内填满小孔隙多孔介质材料36；所述燃烧室40的内壳内间隔分布有若干数量的换热水室39，燃烧室40由若干数量的换热水室39分割成多个燃烧小区域，在每个燃烧室小区域内填充有非均匀多孔介质材料34，在每个燃烧室小区域的上下两端，且靠近燃烧室内壳处设置耐火砖9；防回火进气通道的列数与燃烧室小区域的数量相同；在燃烧室上游，且与防回火水室相连的部分留有空隙，在此空隙内固定安装点火器电极32，同时能够保证引燃进入燃烧室小区域的预混气体；The combustion heat exchange unit includes an anti-backfire structure, a combustion chamber 40, a tail heat exchanger and an air intake chamber 2, and two premixed gas inlet pipes 1 are welded on the side wall of the air intake chamber 2; The fire structure is composed of an anti-tempering water chamber 35 and an anti-tempering air intake passage 4. The anti-tempering air intake passage 4 is embedded in the anti-tempering water chamber 35 by welding, and the front end of the anti-tempering water chamber 35 is connected to the air intake chamber 2 connection, the combustion chamber 40 is connected to the rear end of the anti-tempering water chamber, and a tail heat exchanger is arranged at the outlet of the combustion chamber 40. The gas channel 4 communicates with the intake chamber 2 and the combustion chamber 40; the anti-tempering intake channel 4 is filled with a small-pore porous medium material 36; the inner shell of the combustion chamber 40 is distributed with a certain number of water exchange chambers at intervals 39. The combustion chamber 40 is divided into a plurality of small combustion areas by a number of water exchange chambers 39, and each small area of the combustion chamber is filled with a non-uniform porous medium material 34. At the upper and lower ends of each small area of the combustion chamber, And the refractory brick 9 is set near the combustion chamber shell; the number of columns of the anti-tempering air intake channel is the same as the number of small areas of the combustion chamber; there is a gap in the upstream of the combustion chamber and the part connected with the anti-tempering water chamber, where The igniter electrode 32 is fixedly installed in the gap, and at the same time, it can ensure that the premixed gas entering the small area of the combustion chamber is ignited;
防回火水室35上焊接有防回火水室进水管6和防回火水室出水管33，换热水室上焊接有换热水室出水管8和换热水室进水管21，所述换热水室进水管21的两端封闭，并设有一个入口和若干数量个出口，出口的数量与换热水室39的数量一致，每个出口分别联通一个换热水室；防回火水室出水管33与换热水室进水管21的入口连接，每个燃烧换热单元的若干数量的换热水室的出口均与换热水室出水管8相联通；The anti-tempering water chamber 35 is welded with the anti-tempering water chamber inlet pipe 6 and the anti-tempering water chamber outlet pipe 33, and the water exchange chamber is welded with the water exchange chamber outlet pipe 8 and the water exchange chamber inlet pipe 21, The two ends of the water exchange chamber inlet pipe 21 are closed, and are provided with an inlet and a number of outlets, the number of outlets is consistent with the number of the water exchange chamber 39, and each outlet is connected to a water exchange chamber respectively; The outlet pipe 33 of the tempering water chamber is connected to the inlet of the water exchange chamber inlet pipe 21, and the outlets of a certain number of water exchange chambers of each combustion heat exchange unit are connected with the outlet pipe 8 of the water exchange chamber;
所述尾部换热器包括尾部换热管29、尾部换热器入口集管24和尾部换热器出口集管10，尾部换热管29的两端分别焊接在尾部换热器入口集管24和尾部换热器出口集管10上，尾部换热管29与燃烧室内壳的侧壁固定连接；尾部换热器出口集管10和防回火水室进水管6之间通过连接水管7相连；The tail heat exchanger includes a tail heat exchange tube 29, a tail heat exchanger inlet header 24 and a tail heat exchanger outlet header 10, and the two ends of the tail heat exchange tube 29 are respectively welded to the tail heat exchanger inlet header 24 and the outlet header 10 of the tail heat exchanger, the tail heat exchange pipe 29 is fixedly connected to the side wall of the combustion chamber shell; the outlet header 10 of the tail heat exchanger and the inlet pipe 6 of the anti-tempering water chamber are connected through the connecting water pipe 7 ;
所述连接箱体包括若干数量的连接箱体侧板15、连接箱体顶板16和连接箱体底板28，所述连接箱体侧板15的数量与燃烧换热单元的数量一致，若干数量的连接箱体侧板15、连接箱体顶板16和连接箱体底板28所围成的箱体空间构成烟气汇集室，每个连接箱体侧板15分别与相应的燃烧换热单元的燃烧室内壳31的侧板焊接在一起，连接箱体顶板16和连接箱体底板28分别与相应的燃烧换热单元的燃烧室内壳的顶板和底板焊接在一起；连接箱体的底部为倒棱锥状结构，连接箱体底板28中心焊接有圆筒状的冷凝水汇集室27，冷凝水汇集室上焊接有排水管25和排烟管26；The connecting box includes a number of connecting box side plates 15, connecting box top plate 16 and connecting box bottom plate 28. The number of the connecting box side plates 15 is consistent with the number of combustion heat exchange units. The box space surrounded by the connecting box side plate 15, the connecting box top plate 16 and the connecting box bottom plate 28 constitutes a flue gas collection chamber, and each connecting box side plate 15 is respectively connected to the combustion chamber of the corresponding combustion heat exchange unit. The side plates of the shell 31 are welded together, and the top plate 16 of the connecting box and the bottom plate 28 of the connecting box are welded together with the top plate and the bottom plate of the combustion inner shell of the corresponding combustion heat exchange unit; the bottom of the connecting box is an inverted pyramid structure A cylindrical condensed water collection chamber 27 is welded to the center of the bottom plate 28 of the connecting box, and a drain pipe 25 and a smoke exhaust pipe 26 are welded on the condensed water collection chamber;
连接箱体底部设置环状的锅炉入口集管22，锅炉入口集管上焊接有锅炉进水管37，锅炉入口集管上均匀分布有与燃烧换热单元数量一致的若干数量的出水口，该出水口与相应的燃烧换热单元的尾部换热器入口集管24连接，环状的锅炉入口集管22上安装与燃烧换热单元数量一致的若干数量的水阀23，可以根据锅炉负荷需求，实现部分燃烧换热单元的正常运行；连接箱体的顶部设置有环状的锅炉出口集管11，锅炉出口集管11上分布有与燃烧换热单元数量一致的若干个进水口和一个出水口，该进水口分别与相应燃烧换热单元的换热水室出水管8连接，锅炉出口集管的出水口上焊接有热水出水管38。A ring-shaped boiler inlet header 22 is arranged at the bottom of the connecting box, and a boiler water inlet pipe 37 is welded on the boiler inlet header. A number of water outlets consistent with the number of combustion heat exchange units are evenly distributed on the boiler inlet header. The water port is connected to the tail heat exchanger inlet header 24 of the corresponding combustion heat exchange unit, and the annular boiler inlet header 22 is equipped with a number of water valves 23 consistent with the number of combustion heat exchange units, which can be adjusted according to the boiler load demand. Realize the normal operation of part of the combustion heat exchange unit; the top of the connecting box is provided with an annular boiler outlet header 11, and the boiler outlet header 11 is distributed with several water inlets and one water outlet consistent with the number of combustion heat exchange units , the water inlets are respectively connected with the outlet pipes 8 of the water exchange chamber of the corresponding combustion heat exchange unit, and the outlet of the boiler outlet header is welded with a hot water outlet pipe 38 .
上述基于多孔介质燃烧技术的燃气锅炉中，所述预混器用于实现燃气和空气的混合，包括燃气喷嘴20、引射器13、空气喷嘴19、预混室14和预混气体出口管17；在预混室14的下部与连接箱体的上表面固定连接，在预混室14靠近顶部的侧面上设置有两个引射器13，两个引射器13之间的夹角为120°，在预混室14靠近底部的侧面上均匀布置有若干数量的预混气体出口管17，预混气体出口管17的数量为燃烧换热单元数量的两倍，预混气体出口管17通过预混气体联络管12与进气室的预混气体进口管1连接，每个预混气体联络管12上均安装有截止阀18，便于调节燃气锅炉的工作负荷。In the above-mentioned gas boiler based on porous media combustion technology, the premixer is used to realize the mixing of gas and air, including gas nozzle 20, injector 13, air nozzle 19, premix chamber 14 and premix gas outlet pipe 17; The lower part of the premix chamber 14 is fixedly connected to the upper surface of the connection box, and two ejectors 13 are arranged on the side of the premix chamber 14 close to the top, and the angle between the two ejectors 13 is 120° , a number of premixed gas outlet pipes 17 are evenly arranged on the side of the premixed chamber 14 near the bottom, the number of premixed gas outlet pipes 17 is twice the number of combustion heat exchange units, and the premixed gas outlet pipes 17 pass through the premixed gas outlet pipes. The mixed gas connecting pipe 12 is connected with the premixed gas inlet pipe 1 of the air intake chamber, and each premixed gas connecting pipe 12 is equipped with a stop valve 18, which is convenient for adjusting the working load of the gas boiler.
所述燃烧换热单元的数量为2-12个。The number of the combustion heat exchange units is 2-12.
所述换热水室(参见图4)的形状为长方体结构，在每个燃烧换热单元中换热水室的个数为4-20个，所述换热水室进水管21是一根两端封闭并带有1个入口和4-20个出口的钢管。The shape of the water exchange chamber (see Figure 4) is a cuboid structure, and the number of water exchange chambers in each combustion heat exchange unit is 4-20, and the inlet pipe 21 of the water exchange chamber is a A steel pipe closed at both ends with 1 inlet and 4-20 outlets.
所述燃烧室内每个燃烧小区域的横截面宽度为10-30mm，深度为60-500mm。The cross-sectional width of each small combustion area in the combustion chamber is 10-30 mm, and the depth is 60-500 mm.
防回火进气通道的直径为10-25mm。The diameter of the anti-tempering air intake channel is 10-25mm.
所述尾部换热管直径为8-20mm。The diameter of the tail heat exchange tube is 8-20mm.
所述进气室和防回火水室的截面为正方形或长方形，所述防回火水室35(参见图3)内嵌(3～19)*(3～45)个防回火进气通道4，即有3-19列，3-45行，列间距为20-70mm，行间距为30-60mm，直径为10-25mm。The sections of the air intake chamber and the anti-tempering water chamber are square or rectangular, and the anti-tempering water chamber 35 (see Figure 3) is embedded with (3-19)*(3-45) anti-tempering air intake chambers. Channel 4, that is, there are 3-19 columns, 3-45 rows, the column spacing is 20-70mm, the row spacing is 30-60mm, and the diameter is 10-25mm.
所述小孔隙多孔介质材料的孔隙密度为40PPI-60PPI，孔隙率为80％-90％。The pore density of the small-pore porous medium material is 40PPI-60PPI, and the porosity is 80%-90%.
所述非均匀多孔介质材料的孔隙密度为10PPI-40PPI，在每个燃烧室小区域内，在气流方向上孔隙密度呈非均匀分布，由3-20块厚度为10-40mm的长方形片状多孔介质依次叠加而成。The pore density of the non-uniform porous medium material is 10PPI-40PPI, and in each small area of the combustion chamber, the pore density is non-uniformly distributed in the direction of air flow, consisting of 3-20 rectangular sheet-shaped porous media with a thickness of 10-40mm successively superimposed.
所述燃烧室上游与防回火水室相连的部分留有的空隙的大小为4-8mm。The size of the gap left in the part connected to the anti-tempering water chamber upstream of the combustion chamber is 4-8mm.
本发明基于多孔介质燃烧技术的燃气锅炉中水的流动方式是：锅炉进水管37→锅炉入口集管22→尾部换热器入口集管24→尾部换热管29→尾部换热器出口集管10→连接水管7→防回火水室进水管6→防回火水室35→防回火水室出水管33→换热水室进水管21→换热水室39→换热水室出水管8→锅炉出口集管10→热水出水管38。The flow mode of water in the gas-fired boiler based on the porous medium combustion technology of the present invention is: boiler inlet pipe 37→boiler inlet header 22→tail heat exchanger inlet header 24→tail heat exchange tube 29→tail heat exchanger outlet header 10→connecting water pipe 7→inlet pipe of anti-tempering water chamber 6→anti-tempering water chamber 35→outlet pipe of anti-tempering water chamber 33→inlet pipe of water exchange chamber 21→water exchange chamber 39→outlet of water exchange chamber Water pipe 8→boiler outlet header 10→hot water outlet pipe 38.
本发明中的尾部换热管29由10-80层蛇形换热管组成，具体尾部换热管的层数与燃烧室的尺寸有关，具体地说，燃气炉功率越大，燃烧室高度越大，能容下的尾部换热管的数量就更多。在燃烧室内换热水室的数量为4-20个，具体的数量要求和单个燃烧换热单元的功率有关，每个燃烧换热单元在横向上由若干个换热水室把燃烧室分割为若干个燃烧小区域，每个燃烧小区域的横截面宽度有要求，一般为10-30mm，换热水室的宽度为10-40mm，燃烧换热单元的功率大则需要的燃烧室大，换热水室分割的燃烧小区域个数多，可以有3-19个燃烧小区域。水阀23的阀门开启的个数与燃烧换热单元启动的个数一致，避免冷水进入未工作的燃烧换热单元，可以根据锅炉负荷需求，实现部分燃烧换热单元的正常运行。The tail heat exchange tube 29 in the present invention is made up of 10-80 layers of serpentine heat exchange tubes, and the number of layers of the tail heat exchange tube is related to the size of the combustion chamber. Specifically, the greater the power of the gas furnace, the higher the height of the combustion chamber. Larger, the number of tail heat exchange tubes that can be accommodated is just more. The number of water exchange chambers in the combustion chamber is 4-20. The specific quantity requirements are related to the power of a single combustion heat exchange unit. Each combustion heat exchange unit is divided into horizontally by several water exchange chambers. There are several small combustion areas. The cross-sectional width of each small combustion area is required, generally 10-30mm, and the width of the water exchange chamber is 10-40mm. If the power of the combustion heat exchange unit is large, the combustion chamber required is large, and the heat exchange chamber is large. There are many small combustion areas divided by the hot water chamber, and there may be 3-19 small combustion areas. The number of valves opened by the water valve 23 is consistent with the number of activated combustion heat exchange units, so as to prevent cold water from entering the non-working combustion heat exchange units, and realize the normal operation of some combustion heat exchange units according to the boiler load demand.
本发明中所述非均匀多孔介质材料34和小孔隙多孔介质材料36可以为氧化铝、碳化硅或氧化锆等，其耐受高温可达1000℃以上。The non-uniform porous medium material 34 and the small-pore porous medium material 36 in the present invention can be alumina, silicon carbide or zirconia, etc., which can withstand high temperatures above 1000°C.
实施例1Example 1
本实施例的基于多孔介质燃烧技术的燃气锅炉结构和形状见图1-4。The structure and shape of the gas boiler based on porous media combustion technology in this embodiment are shown in Figures 1-4.
本实施例基于多孔介质燃烧技术的燃气锅炉包括预混器、若干数量的燃烧换热单元和连接箱体；所述若干数量的燃烧换热单元通过连接箱体连接，燃烧换热单元围绕连接箱体呈中心对称分布，连接箱体和燃烧换热单元外部包裹有外壳5，在外壳5与连接箱体和燃烧换热单元之间填充有保温材料3，防止热量的散失，预混器设置在连接箱体的上部；The gas boiler based on porous media combustion technology in this embodiment includes a premixer, a number of combustion heat exchange units and a connection box; the number of combustion heat exchange units are connected through the connection box, and the combustion heat exchange unit surrounds the connection box The body is symmetrically distributed in the center, and the connecting box and the combustion heat exchange unit are wrapped with a shell 5, and the insulation material 3 is filled between the shell 5 and the connecting box and the combustion heat exchange unit to prevent heat loss. The premixer is set at Connect the upper part of the box;
所述燃烧换热单元包括防回火结构、燃烧室40、尾部换热器和进气室2，所述进气室2的侧壁面焊接有两个预混气体进口管1；所述防回火结构由防回火水室35和防回火进气通道4构成，防回火进气通道4通过焊接嵌入在防回火水室35中，防回火水室35前端与进气室2连接，在防回火水室后端连接燃烧室40，在燃烧室40的出口布置有尾部换热器，燃烧室40和尾部换热器均置于燃烧室内壳31中，通过防回火进气通道4联通进气室2和燃烧室40；在防回火进气通道4内填满小孔隙多孔介质材料36；所述燃烧室40的内壳内间隔分布有若干数量的换热水室39，燃烧室40由若干数量的换热水室39分割成多个燃烧小区域，在每个燃烧室小区域内填充有非均匀多孔介质材料34，在每个燃烧室小区域的上下两端，且靠近燃烧室内壳处设置耐火砖9；防回火进气通道的列数与燃烧室小区域的数量相同；在燃烧室上游，且与防回火水室相连的部分留有空隙，在此空隙内固定安装点火器电极32，同时能够保证引燃进入燃烧室小区域的预混气体；The combustion heat exchange unit includes an anti-backfire structure, a combustion chamber 40, a tail heat exchanger and an air intake chamber 2, and two premixed gas inlet pipes 1 are welded on the side wall of the air intake chamber 2; The fire structure is composed of an anti-tempering water chamber 35 and an anti-tempering air intake passage 4. The anti-tempering air intake passage 4 is embedded in the anti-tempering water chamber 35 by welding, and the front end of the anti-tempering water chamber 35 is connected to the air intake chamber 2 connection, the combustion chamber 40 is connected to the rear end of the anti-tempering water chamber, and a tail heat exchanger is arranged at the outlet of the combustion chamber 40. The gas channel 4 communicates with the intake chamber 2 and the combustion chamber 40; the anti-tempering intake channel 4 is filled with a small-pore porous medium material 36; the inner shell of the combustion chamber 40 is distributed with a certain number of water exchange chambers at intervals 39. The combustion chamber 40 is divided into a plurality of small combustion areas by a number of water exchange chambers 39, and each small area of the combustion chamber is filled with a non-uniform porous medium material 34. At the upper and lower ends of each small area of the combustion chamber, And the refractory brick 9 is set near the combustion chamber shell; the number of columns of the anti-tempering air intake channel is the same as the number of small areas of the combustion chamber; there is a gap in the upstream of the combustion chamber and the part connected with the anti-tempering water chamber, where The igniter electrode 32 is fixedly installed in the gap, and at the same time, it can ensure that the premixed gas entering the small area of the combustion chamber is ignited;
防回火水室35上焊接有防回火水室进水管6和防回火水室出水管33，换热水室上焊接有换热水室出水管8和换热水室进水管21，所述换热水室进水管21的两端封闭，并设有一个入口和若干数量个出口，出口的数量与换热水室39的数量一致，每个出口分别联通一个换热水室；防回火水室出水管33与换热水室进水管21的入口连接，每个燃烧换热单元的若干数量的换热水室的出口均与换热水室出水管8相联通；The anti-tempering water chamber 35 is welded with the anti-tempering water chamber inlet pipe 6 and the anti-tempering water chamber outlet pipe 33, and the water exchange chamber is welded with the water exchange chamber outlet pipe 8 and the water exchange chamber inlet pipe 21, The two ends of the water exchange chamber inlet pipe 21 are closed, and are provided with an inlet and a number of outlets, the number of outlets is consistent with the number of the water exchange chamber 39, and each outlet is connected to a water exchange chamber respectively; The outlet pipe 33 of the tempering water chamber is connected to the inlet of the water exchange chamber inlet pipe 21, and the outlets of a certain number of water exchange chambers of each combustion heat exchange unit are connected with the outlet pipe 8 of the water exchange chamber;
所述尾部换热器包括尾部换热管29、尾部换热器入口集管24和尾部换热器出口集管10，尾部换热管29的两端分别焊接在尾部换热器入口集管24和尾部换热器出口集管10上，尾部换热管29与燃烧室内壳的侧壁固定连接；尾部换热器出口集管10和防回火水室进水管6之间通过连接水管7相连；The tail heat exchanger includes a tail heat exchange tube 29, a tail heat exchanger inlet header 24 and a tail heat exchanger outlet header 10, and the two ends of the tail heat exchange tube 29 are respectively welded to the tail heat exchanger inlet header 24 and the outlet header 10 of the tail heat exchanger, the tail heat exchange pipe 29 is fixedly connected to the side wall of the combustion chamber shell; the outlet header 10 of the tail heat exchanger and the inlet pipe 6 of the anti-tempering water chamber are connected through the connecting water pipe 7 ;
所述连接箱体包括若干数量的连接箱体侧板15、连接箱体顶板16和连接箱体底板28，所述连接箱体侧板15的数量与燃烧换热单元的数量一致，若干数量的连接箱体侧板15、连接箱体顶板16和连接箱体底板28所围成的箱体空间构成烟气汇集室，每个连接箱体侧板15分别与相应的燃烧换热单元的燃烧室内壳31的侧板焊接在一起，连接箱体顶板16和连接箱体底板28分别与相应的燃烧换热单元的燃烧室内壳的顶板和底板焊接在一起；连接箱体的底部为倒棱锥状结构，连接箱体底板28中心焊接有圆筒状的冷凝水汇集室27，冷凝水汇集室上焊接有排水管25和排烟管26；The connecting box includes a number of connecting box side plates 15, connecting box top plate 16 and connecting box bottom plate 28. The number of the connecting box side plates 15 is consistent with the number of combustion heat exchange units. The box space surrounded by the connecting box side plate 15, the connecting box top plate 16 and the connecting box bottom plate 28 constitutes a flue gas collection chamber, and each connecting box side plate 15 is respectively connected to the combustion chamber of the corresponding combustion heat exchange unit. The side plates of the shell 31 are welded together, and the top plate 16 of the connecting box and the bottom plate 28 of the connecting box are welded together with the top plate and the bottom plate of the combustion inner shell of the corresponding combustion heat exchange unit; the bottom of the connecting box is an inverted pyramid structure A cylindrical condensed water collection chamber 27 is welded to the center of the bottom plate 28 of the connecting box, and a drain pipe 25 and a smoke exhaust pipe 26 are welded on the condensed water collection chamber;
连接箱体底部设置环状的锅炉入口集管22，锅炉入口集管上焊接有锅炉进水管37，锅炉入口集管上均匀分布有与燃烧换热单元数量一致的若干数量的出水口，该出水口与相应的燃烧换热单元的尾部换热器入口集管24连接，环状的锅炉入口集管22上安装与燃烧换热单元数量一致的若干数量的水阀23，可以根据锅炉负荷需求，实现部分燃烧换热单元的正常运行；连接箱体的顶部设置有环状的锅炉出口集管11，锅炉出口集管11上分布有与燃烧换热单元数量一致的若干个进水口和一个出水口，该进水口分别与相应燃烧换热单元的换热水室出水管8连接，锅炉出口集管的出水口上焊接有热水出水管38。A ring-shaped boiler inlet header 22 is arranged at the bottom of the connecting box, and a boiler water inlet pipe 37 is welded on the boiler inlet header. A number of water outlets consistent with the number of combustion heat exchange units are evenly distributed on the boiler inlet header. The water port is connected to the tail heat exchanger inlet header 24 of the corresponding combustion heat exchange unit, and the annular boiler inlet header 22 is equipped with a number of water valves 23 consistent with the number of combustion heat exchange units, which can be adjusted according to the boiler load demand. Realize the normal operation of part of the combustion heat exchange unit; the top of the connecting box is provided with an annular boiler outlet header 11, and the boiler outlet header 11 is distributed with several water inlets and one water outlet consistent with the number of combustion heat exchange units , the water inlets are respectively connected with the outlet pipes 8 of the water exchange chamber of the corresponding combustion heat exchange unit, and the outlet of the boiler outlet header is welded with a hot water outlet pipe 38 .
本实施例的基于多孔介质燃烧技术的燃气锅炉具有4个燃烧换热单元，每个燃烧换热单元有4个换热水室39，围成3个燃烧小区域，对应的有3列防回火进气通道4。其中，换热水室39的尺寸为235*90*30mm，所围成的燃烧小区域的高度为235mm，深度为90mm，宽度为30mm。防回火进气通道4的直径为16mm，列间距为60mm，行间距为47mm。非均匀多孔介质材料34和小孔隙多孔介质材料36均为氧化铝。换热水室进水管21为一根两端封闭并带有一个入口、4个出口的钢管，出口端分别与4个换热水室39联通。燃烧室内壳31由4块不锈钢板(1块顶板、1块底板、2块侧板)焊接而成，燃烧室上游与防回火水室相连的部分留有的空隙的大小为8mm。The gas boiler based on porous medium combustion technology in this embodiment has 4 combustion heat exchange units, and each combustion heat exchange unit has 4 water exchange water chambers 39, which are surrounded by 3 small combustion areas, and correspondingly there are 3 anti-return columns. Fire intake channel 4. Wherein, the size of the water exchange chamber 39 is 235*90*30mm, and the height of the small combustion area surrounded by it is 235mm, the depth is 90mm, and the width is 30mm. The anti-tempering air inlet channel 4 has a diameter of 16 mm, a column spacing of 60 mm, and a row spacing of 47 mm. Both the heterogeneous porous medium material 34 and the small-pore porous medium material 36 are alumina. The inlet pipe 21 of the water exchange chamber is a steel pipe with two ends closed and one inlet and four outlets, and the outlet ends communicate with the four water exchange chambers 39 respectively. Combustion inner shell 31 is welded by 4 stainless steel plates (1 top plate, 1 bottom plate, 2 side plates), and the size of the space left in the part where the upstream of the combustion chamber is connected with the anti-tempering water chamber is 8mm.
本实施例中尾部换热管29由12层蛇形换热管组成，每层换热管两端分别焊接在尾部换热器入口集管24和尾部换热器出口集管10上，尾部换热管29通过定位片30点焊固定在燃烧室内壳31上。In this embodiment, the tail heat exchange tube 29 is composed of 12 layers of serpentine heat exchange tubes. The heat pipe 29 is fixed on the combustion chamber shell 31 by spot welding of the positioning piece 30 .
本实施例中连接箱体由4块侧板15、1块顶板16和1块底板28焊接而成，组成一个箱体结构，构成烟气汇集室；连接箱体侧板15和每两个燃烧换热单元的燃烧室内壳31侧板焊接在一起，所述外壳5分为侧板、顶板和底板，分别由螺丝固定连接。所述锅炉入口集管上22均匀分布4个出水口，安装4个水阀23，可以根据锅炉负荷需求，实现部分燃烧换热单元的正常运行。所述锅炉出口集管11上布置有4个进水口和一个出水口，4个进水口分别与4个燃烧换热单元的换热水室出水管8连接。In this embodiment, the connecting box is welded by four side plates 15, one top plate 16 and one bottom plate 28 to form a box structure and form a smoke collection chamber; connecting box side plates 15 and every two combustion The combustion inner shell 31 side plates of the heat exchange unit are welded together, and the shell 5 is divided into a side plate, a top plate and a bottom plate, which are fixedly connected by screws respectively. Four water outlets are evenly distributed on the inlet header 22 of the boiler, and four water valves 23 are installed to realize the normal operation of the partial combustion heat exchange unit according to the load demand of the boiler. Four water inlets and one water outlet are arranged on the boiler outlet header 11, and the four water inlets are respectively connected with the outlet pipes 8 of the water exchange chambers of the four combustion heat exchange units.
本实施例基于多孔介质燃烧技术的燃气锅炉额定功率为160kW，锅炉热效率可以达到96％-107％。The rated power of the gas boiler based on the porous medium combustion technology in this embodiment is 160kW, and the thermal efficiency of the boiler can reach 96%-107%.
实施例2Example 2
本实施例基于多孔介质燃烧技术的燃气锅炉的各部分结构连接同实施例1，不同之处在于所述预混器包括燃气喷嘴20、引射器13、空气喷嘴19、预混室14和预混气体出口管17；在预混室14的下部与连接箱体的上表面固定连接，在预混室14靠近顶部的侧面上设置有两个引射器13，两个引射器13之间的夹角为120°，在预混室14靠近底部的侧面上均匀布置有8个预混气体出口管17，预混气体出口管17通过预混气体联络管12与进气室的预混气体进口管1连接，每个预混气体联络管12上均安装有截止阀18，便于调节基于多孔介质燃烧技术的燃气锅炉的工作负荷。In this embodiment, the structural connections of the various parts of the gas boiler based on the porous media combustion technology are the same as in Embodiment 1, except that the premixer includes a gas nozzle 20, an injector 13, an air nozzle 19, a premix chamber 14 and a premixer. Mixed gas outlet pipe 17; the bottom of the premix chamber 14 is fixedly connected to the upper surface of the connecting box, and two injectors 13 are arranged on the side near the top of the premix chamber 14, between the two injectors 13 The included angle is 120°, and eight premixed gas outlet pipes 17 are evenly arranged on the side of the premixed chamber 14 near the bottom, and the premixed gas outlet pipes 17 are connected with the premixed gas in the intake chamber The inlet pipe 1 is connected, and each premixed gas connecting pipe 12 is equipped with a stop valve 18, which is convenient for adjusting the working load of the gas boiler based on the porous media combustion technology.
实施例3Example 3
本实施例基于多孔介质燃烧技术的燃气锅炉的各部分结构连接同实施例1，不同之处在于本实施例的基于多孔介质燃烧技术的燃气锅炉具有6个燃烧换热单元，图5为其连接箱体的俯视剖面示意图，图中剖面为连接箱体侧板15，一共6块侧板，每块侧板15与每两个燃烧换热单元连接。The structural connection of each part of the gas boiler based on porous media combustion technology in this embodiment is the same as that in Embodiment 1, the difference is that the gas boiler based on porous media combustion technology in this embodiment has 6 combustion heat exchange units, and Figure 5 shows its connection The top view sectional schematic diagram of the box body, the section in the figure shows the side panels 15 connected to the box body, a total of 6 side panels, and each side panel 15 is connected to every two combustion heat exchange units.
本发明基于多孔介质燃烧技术的燃气锅炉中，所涉及的原材料、零部件及其安装方法均为本技术领域所熟知的。In the gas boiler based on the porous medium combustion technology of the present invention, the raw materials, parts and installation methods involved are all well known in the technical field.
本发明未述及之处适用于现有技术。What is not mentioned in the present invention is applicable to the prior art.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807386.6A CN106288370B (en) | 2016-09-07 | 2016-09-07 | Gas boiler based on porous media combustion technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807386.6A CN106288370B (en) | 2016-09-07 | 2016-09-07 | Gas boiler based on porous media combustion technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106288370A true CN106288370A (en) | 2017-01-04 |
| CN106288370B CN106288370B (en) | 2021-09-24 |
Family
ID=57710968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610807386.6A Active CN106288370B (en) | 2016-09-07 | 2016-09-07 | Gas boiler based on porous media combustion technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106288370B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360568A (en) * | 2019-08-23 | 2019-10-22 | 北京泷涛环境科技有限公司 | A kind of low nitrogen combustion apparatus and method |
| CN114017762A (en) * | 2021-11-09 | 2022-02-08 | 江苏双良锅炉有限公司 | A Porous Ceramic Medium Combustion Horizontal Internal Combustion Steam Boiler |
Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2100580U (en) * | 1990-02-22 | 1992-04-01 | 孙荣清 | Double-functional living boiler |
| KR940008394B1 (en) * | 1991-12-21 | 1994-09-14 | 주식회사 금성사 | Gas Boiler with Porous-medium |
| US5522723A (en) * | 1993-07-02 | 1996-06-04 | Franz Durst | Burner having porous material of varying porosity |
| CN2261004Y (en) * | 1996-04-30 | 1997-08-27 | 双鸭山东方工业公司 | High-efficiency after-heat exchanger |
| CN2335095Y (en) * | 1998-07-17 | 1999-08-25 | 戴华斌 | Building-block type honeycomb briquet atmospheric pressure water-heating boiler |
| CN2484481Y (en) * | 2001-06-06 | 2002-04-03 | 浙江大学 | Gradual-change porous-medium burner |
| CN2534519Y (en) * | 2002-04-01 | 2003-02-05 | 凤城市百利锅炉制造有限公司 | Atmospheric pressure water heating coal boiler |
| CN2713375Y (en) * | 2003-10-16 | 2005-07-27 | 广州迪森热能设备有限公司 | A hot water boiler |
| CN1802535A (en) * | 2003-07-30 | 2006-07-12 | 巴布考克日立株式会社 | Heat exchanger tube panel module, and method of constructing exhaust heat recovery boiler using the module |
| CN101566386A (en) * | 2009-03-18 | 2009-10-28 | 河北工业大学 | Porous-medium gas hot water heater |
| CN101655279A (en) * | 2009-05-29 | 2010-02-24 | 李金才 | Multi-stage rotating energy-saving dust and harmful substance removing vertical boiler |
| CN101968220A (en) * | 2010-10-28 | 2011-02-09 | 河北工业大学 | Low nitrogen oxide burning process as well as burning device and application |
| CN102168888A (en) * | 2011-02-25 | 2011-08-31 | 清华大学 | Contact-type advanced recycling system for waste heat of low-temperature flue gas |
| CN102748860A (en) * | 2012-07-17 | 2012-10-24 | 苏州威博特能源环保科技有限公司 | Combined high-power condensing boiler and control method thereof |
| CN103062770A (en) * | 2013-01-16 | 2013-04-24 | 浙江大学 | High-temperature gas generating device on basis of porous medium combustion and heat storage |
| CN103090539A (en) * | 2011-11-08 | 2013-05-08 | 上海康洪精密机械有限公司 | Double-output composite boiler |
| CN203068491U (en) * | 2013-01-17 | 2013-07-17 | 杨群峰 | Vertical type water-fire pressure-bearing boiler |
| CN103277781A (en) * | 2013-04-16 | 2013-09-04 | 西安交通大学 | Embedded modularized assembly water pipe fuel oil and fuel gas boiler |
| CN203478592U (en) * | 2013-10-11 | 2014-03-12 | 河北群翔采暖设备有限公司 | Atmosphere-type fuel gas module energy-saving environment-protecting boiler |
| US8818252B2 (en) * | 2012-10-29 | 2014-08-26 | Eastman Kodak Company | Toner fixer transporting medium through heating liquid |
| CN204438099U (en) * | 2014-10-22 | 2015-07-01 | 北京神雾环境能源科技集团股份有限公司 | Heat storage type porous medium burner assembly |
| CN204534588U (en) * | 2015-04-20 | 2015-08-05 | 河北工业大学 | A kind of water-cooled gas burner |
| US20150266355A1 (en) * | 2014-03-20 | 2015-09-24 | Eberspächer Climate Control Systems GmbH & Co. KG | Vehicle heater |
| CN205424884U (en) * | 2016-04-01 | 2016-08-03 | 温州博远工业设计有限公司 | Residual heat from flue gas of firepower factory device |
| CN206001681U (en) * | 2016-09-07 | 2017-03-08 | 河北工业大学 | A kind of porous-medium gas hot boiler |
-
2016
- 2016-09-07 CN CN201610807386.6A patent/CN106288370B/en active Active
Patent Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2100580U (en) * | 1990-02-22 | 1992-04-01 | 孙荣清 | Double-functional living boiler |
| KR940008394B1 (en) * | 1991-12-21 | 1994-09-14 | 주식회사 금성사 | Gas Boiler with Porous-medium |
| US5522723A (en) * | 1993-07-02 | 1996-06-04 | Franz Durst | Burner having porous material of varying porosity |
| CN2261004Y (en) * | 1996-04-30 | 1997-08-27 | 双鸭山东方工业公司 | High-efficiency after-heat exchanger |
| CN2335095Y (en) * | 1998-07-17 | 1999-08-25 | 戴华斌 | Building-block type honeycomb briquet atmospheric pressure water-heating boiler |
| CN2484481Y (en) * | 2001-06-06 | 2002-04-03 | 浙江大学 | Gradual-change porous-medium burner |
| CN2534519Y (en) * | 2002-04-01 | 2003-02-05 | 凤城市百利锅炉制造有限公司 | Atmospheric pressure water heating coal boiler |
| CN1802535A (en) * | 2003-07-30 | 2006-07-12 | 巴布考克日立株式会社 | Heat exchanger tube panel module, and method of constructing exhaust heat recovery boiler using the module |
| CN2713375Y (en) * | 2003-10-16 | 2005-07-27 | 广州迪森热能设备有限公司 | A hot water boiler |
| CN101566386A (en) * | 2009-03-18 | 2009-10-28 | 河北工业大学 | Porous-medium gas hot water heater |
| CN101655279A (en) * | 2009-05-29 | 2010-02-24 | 李金才 | Multi-stage rotating energy-saving dust and harmful substance removing vertical boiler |
| CN101968220A (en) * | 2010-10-28 | 2011-02-09 | 河北工业大学 | Low nitrogen oxide burning process as well as burning device and application |
| CN102168888A (en) * | 2011-02-25 | 2011-08-31 | 清华大学 | Contact-type advanced recycling system for waste heat of low-temperature flue gas |
| CN103090539A (en) * | 2011-11-08 | 2013-05-08 | 上海康洪精密机械有限公司 | Double-output composite boiler |
| CN102748860A (en) * | 2012-07-17 | 2012-10-24 | 苏州威博特能源环保科技有限公司 | Combined high-power condensing boiler and control method thereof |
| US8818252B2 (en) * | 2012-10-29 | 2014-08-26 | Eastman Kodak Company | Toner fixer transporting medium through heating liquid |
| CN103062770A (en) * | 2013-01-16 | 2013-04-24 | 浙江大学 | High-temperature gas generating device on basis of porous medium combustion and heat storage |
| CN203068491U (en) * | 2013-01-17 | 2013-07-17 | 杨群峰 | Vertical type water-fire pressure-bearing boiler |
| CN103277781A (en) * | 2013-04-16 | 2013-09-04 | 西安交通大学 | Embedded modularized assembly water pipe fuel oil and fuel gas boiler |
| CN203478592U (en) * | 2013-10-11 | 2014-03-12 | 河北群翔采暖设备有限公司 | Atmosphere-type fuel gas module energy-saving environment-protecting boiler |
| US20150266355A1 (en) * | 2014-03-20 | 2015-09-24 | Eberspächer Climate Control Systems GmbH & Co. KG | Vehicle heater |
| CN204438099U (en) * | 2014-10-22 | 2015-07-01 | 北京神雾环境能源科技集团股份有限公司 | Heat storage type porous medium burner assembly |
| CN204534588U (en) * | 2015-04-20 | 2015-08-05 | 河北工业大学 | A kind of water-cooled gas burner |
| CN205424884U (en) * | 2016-04-01 | 2016-08-03 | 温州博远工业设计有限公司 | Residual heat from flue gas of firepower factory device |
| CN206001681U (en) * | 2016-09-07 | 2017-03-08 | 河北工业大学 | A kind of porous-medium gas hot boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360568A (en) * | 2019-08-23 | 2019-10-22 | 北京泷涛环境科技有限公司 | A kind of low nitrogen combustion apparatus and method |
| CN114017762A (en) * | 2021-11-09 | 2022-02-08 | 江苏双良锅炉有限公司 | A Porous Ceramic Medium Combustion Horizontal Internal Combustion Steam Boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106288370B (en) | 2021-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108019928B (en) | An oxygen-enriched combustion double-chamber boiler system | |
| CN101566386B (en) | Porous-medium gas hot water heater | |
| CN201093753Y (en) | Low energy consumption and high heat cold heat converter | |
| CN206001681U (en) | A kind of porous-medium gas hot boiler | |
| CN107906516A (en) | A kind of continous way Self-heat-storage flameless burner of the double preheatings of air/gas | |
| CN106288370A (en) | Gas fired-boiler based on multi-hole medium combustion technology | |
| CN102168886A (en) | Combustion furnace for flue-cured bulk curing barn | |
| CN102434881B (en) | Multi-stage self-heating burner | |
| CN208332672U (en) | A kind of hot wind furnace structure | |
| CN201072221Y (en) | Smoke canal pre-heating type gas water heater | |
| CN216408927U (en) | Horizontal internal combustion steam boiler with porous ceramic medium combustion | |
| CN105823090B (en) | A kind of heating stove based on honeycomb ceramic heat accumulator | |
| CN211450920U (en) | Porous medium burning low-nitrogen gas boiler system and heat exchange system | |
| CN204177191U (en) | High-efficiency aluminum melting furnace catalytic combustion device | |
| CN203364118U (en) | Reverse burning type energy-saving primary-secondary boiler | |
| CN207335489U (en) | A kind of preheating type hot-water boiler | |
| CN207247162U (en) | Water cooling premixes steam generator | |
| CN210345898U (en) | Full-condensation ultralow-nitrogen horizontal hot water boiler | |
| CN102353094A (en) | Household floor gas furnace | |
| CN205641004U (en) | Heating stove based on ceramic honey comb heat accumulator | |
| CN206787031U (en) | A kind of UTILIZATION OF VESIDUAL HEAT IN energy-saving steam boiler | |
| CN102734850A (en) | Double-water jacket full-flue heat exchanger stove | |
| CN219083069U (en) | Energy-saving heat exchanger for gas radiant tube | |
| CN203375682U (en) | Vertical type coal-fired hot-water boiler | |
| CN218583150U (en) | A low nitrogen gas boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211213 Address after: 075000 zone 505 / A, floor 5, block B, business incubation building, No. 8, Shenkong Road, high tech Industrial Development Zone, Zhangjiakou City, Hebei Province Patentee after: Hebei Hongyu Energy Technology Co.,Ltd. Address before: 300130 No. 8, Hebei University of Technology, Tianjin, Hongqiao No. 330 Patentee before: Hebei University of Technology |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220817 Address after: 076471 room 407, management committee building, Zhangbei Economic Development Zone, Zhangjiakou City, Hebei Province Patentee after: Hebei Hongtan Energy Technology Co., Ltd. Address before: 075000 zone 505 / A, floor 5, block B, business incubation building, No. 8, Shenkong Road, high tech Industrial Development Zone, Zhangjiakou City, Hebei Province Patentee before: Hebei Hongyu Energy Technology Co.,Ltd. |