CN103791479B - A kind of novel full tube panel formula high efficiency fuel gas fired-boiler - Google Patents
A kind of novel full tube panel formula high efficiency fuel gas fired-boiler Download PDFInfo
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- CN103791479B CN103791479B CN201410023480.3A CN201410023480A CN103791479B CN 103791479 B CN103791479 B CN 103791479B CN 201410023480 A CN201410023480 A CN 201410023480A CN 103791479 B CN103791479 B CN 103791479B
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Abstract
A kind of novel full tube panel formula high efficiency fuel gas fired-boiler, comprise radiation heat transfer fin panel casing tube panel structure and convective heat exchange tube bundles formula tube panel structure, radiation heat transfer fin panel casing tube panel structure comprises front wall fin panel casing, rear wall fin panel casing, left side wall fin panel casing and right-side wall fin panel casing, left side wall fin panel casing and right-side wall fin panel casing and side wall lower header and side wall upper collecting chamber composition " O " tee section structure, convective heat exchange tube bundles formula tube panel comprises convective heat exchange tube bundles, convection current tube panel external wall membrane wall and afterbody smoke-box, radiation heat transfer side wall membrane wall serves as the inside wall membrane wall of heat convection tube panel simultaneously, with external wall membrane wall, upper and lower welding steel composition both sides sealing convection pass, this boiler safety nargin is high, good heat-transfer, modularized design, and can realize fast-assembling, overall package, installation period is short, and operation maintenance is easy, and maintenance is convenient, the overall sealing performance of whole boiler is good, and radiation loss significantly reduces, and the thermal efficiency effectively improves.
Description
Technical field
The invention belongs to water-tube fuel oil gas fired-boiler technical field, particularly the novel full tube panel formula high efficiency fuel gas fired-boiler of one.
Background technology
Along with the development of national economy and the raising of living standards of the people, the change of energy consumption structure has very important status.There are the problems such as energy consumption is high, seriously polluted in existing coal-burning boiler.According to " in the urgent need to Economic Development Mode Conversion and adjustment energy consumption structure; heavily bring up to 11.4% to the non-fossil energy consumption ratio of China in 2015; natural gas accounts for primary energy consumption ratio and heavily brings up to 7.5% " in China's energy development " 12 " planning, appearance grows at top speed by the following natural gas consumption of China.China or be about to build up the Central Asia, middle Burma, Sino-Russian and many marine LNG supply lines, the growth momentum formed and internally increase exploration and development, externally increasing the solution source of the gas of working along both lines introduced, by greatly improving the energy supply energy resource structure of China based on coal, improve the Atmospheric Environment Pollution that China constantly worsens.
In use there are the following problems for the conventional oil-burning gas-fired boiler of China: oil-burning gas-fired boiler mostly is medium and small smaller hard flour pancake boiler in the market, smaller hard flour pancake boiler is not suitable for Large Copacity, the packaged boiler of capacity at below 14MW can only be realized, can not meet on market, the demand for development of large-scale oil-burning gas-fired boiler, in future, the developing direction of large-scale oil-burning gas-fired boiler will be water-tube boiler, tradition smaller hard flour pancake boiler comprises the labyrinths such as flue, return combustion chamber, smoke pipe and tube sheet, and manufacturing process is complicated, and labour intensity is large, needs special and various fabricating tools equipment, the high-temperature flue-gas that smaller hard flour pancake boiler sprays from flue is at about 1000 DEG C, direct contact smoke pipe and panel weld, tube-plate fracture accident cannot be eliminated all the time, in order to solve the tube-plate fracture chronic illness of smaller hard flour pancake boiler, China was once proposed fire tube boiler, by the heating surface entering smoke pipe from water pipe burner hearth flue gas be out again connected with tube sheet after the cooling of both wings water pipe, the flue-gas temperature now entering tube sheet also reaches about 800 DEG C, because cigarette temperature is higher, tube-plate fracture is difficult to eliminate all the time, cause tube sheet and smoke pipe junction cracking leakage or serious explosion accident, margin of safety is low, and once ftracture, cannot normal maintenance process, can only change, meanwhile, smaller hard flour pancake boiler extensively adopts threaded flue and light pipe as convection heating surface, light pipe parallel baffled, heat-transfer effect extreme difference, also just there is the effect of turbulence prediction strengthening in threaded flue, and tube hub cannot realize enhanced heat exchange at all within the scope of nearly tube wall face 2mm, in addition, the working medium Side water of shell belongs to large space Natural Circulation, and heat-transfer effect is poorer, and heating surface layout is subject to great restriction, overhauls more difficult.In addition, during China's traditional design is produced, large-scale water-tube fuel oil gas fired-boiler is all A substantially, D, the two drum of O type adds the boiler structure of convection bank, middle-size and small-size fast-assembling dispatches from the factory, medium-and-large-sizedly in bulkly to dispatch from the factory, from manufacturing process, the structure that two drum adds convection bank is not suitable for making in site, be only suitable for assembling in factory, because the inside corner connection welding job amount that two drum adds convection bank structure tube bank end and drum is very large, during upper drum Assembling And Welding, the downward downhand welding of welder, still welding quality can be ensured, but during lower drum Assembling And Welding, welder upwards welds in the overhead position, not only welding quality is difficult to ensure, and in welder's welding process, there is the metal liquid be melted and the danger of splashing burn, if when factory manufactures, can by frocks such as deflection machines, lower drum is made also to be in the position of downward downhand welding, to ensure welding quality, avoid the danger of welding process simultaneously, and, in-site installation, require each root of welding independently pipe fitting, installation period is long, in-site installation pressure-containing parts, workmanship is difficult to ensure, be difficult to structurally to realize modularization rapid-assembling produce, be difficult to reduce on-the-spot welding job amount greatly, welding quality is difficult to ensure, these weld bonds become the major safety risks in running, the existence of simultaneously intensive convection bank is also not easy to maintenance, therefore, it is very complicated that two drum adds convection bank structure fabrication process, be not suitable for maximizing.Visible, the parameter request that the boiler structure of traditional dualization (Small And Medium Capacity smaller hard flour pancake boiler, middle Large Copacity two drum+convection bank) can not meet oil-burning gas-fired boiler safe and reliable operation, Fast Installation, overall package and improve gradually; Therefore, be badly in need of the structure changing current conventional fuel oil gas fired-boiler, expect to create a kind of novel oil-burning gas-fired boiler, the generalization of oil-burning gas-fired boiler structure is realized within the scope of Small And Medium Capacity and middle Large Copacity full capacity, realize steam boiler and the general boiler body of hot-water boiler, reach safe and reliable to operation, fast-assembling, minimizing Site Welding workload, shorten installation period, overhaul actual requirement easily.
Summary of the invention
For solving the defect and deficiency that exist in above-mentioned prior art, the object of the present invention is to provide a kind of novel full tube panel formula high efficiency fuel gas fired-boiler, rational in infrastructure, raw materials consumption is few, long-term operation is safe and reliable, energy-efficient, reduce discharging environmental protection, avoid conventional smoke multitubular boiler and tube-plate fracture easily occurs and is difficult to the defects such as maximization; It also avoid the bottleneck that the two drum of traditional A, D, O type adds the Field Manufacturing Process of the complexity of the boiler structure of convection bank, secondly, the overall sealing performance of whole boiler is good, and radiation loss significantly reduces, and boiler thermal output effectively improves.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of novel full tube panel formula high efficiency fuel gas fired-boiler, comprise radiation heat transfer fin panel casing tube panel structure 3 and convective heat exchange tube bundles formula tube panel structure 4, described radiation heat transfer fin panel casing tube panel structure 3 comprises front wall fin panel casing 3-1, rear wall fin panel casing 3-2, left side wall fin panel casing 3-3, right-side wall fin panel casing 3-4 and the burner 1 be arranged on front wall fin panel casing 3-1, described front wall fin panel casing 3-1, rear wall fin panel casing 3-2, left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4 forms a closed chamber structure in the surrounding of burner 1,
When boiler adopts flue gas central flame flame structure, pipe row is had loose bowels with the gas approach forming convection heating surface in the front portion of left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4, be arranged on front wall fin panel casing 3-1 top and the bottom and that be communicated with it is front wall upper collecting chamber 3-6 and front wall lower header 3-5 respectively, that the top and the bottom being arranged on rear wall fin panel casing 3-2 are also communicated with it is rear wall upper collecting chamber 3-7 and rear wall lower header 3-8 respectively, four headers are connected with side wall lower header 3-10 with the side wall upper collecting chamber 3-9 that left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4 share, described left side wall fin panel casing 3-3, right-side wall fin panel casing 3-4 and side wall lower header 3-9 and side wall upper collecting chamber 3-10 forms " O " tee section structure, convective heat exchange tube bundles formula tube panel structure 4 comprises left side convection current tube panel tube bank 4-1, right side convection current tube panel tube bank 4-2 and convection current tube panel external wall membrane wall 4-8, convective heat exchange tube bundles formula tube panel structure 4 is docked with welding steel 8 with left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4, be symmetrically distributed in the both sides of " O " shape structure, left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4 act as the inside wall membrane wall of left side convection current tube panel tube bank 4-1 and right side convection current tube panel tube bank 4-2 simultaneously respectively, be arranged on convection current tube panel tube bank 4-1 top and the bottom, left side and and its UNICOM be on the left of convection current tube panel upper collecting chamber 4-4 and left side convection current tube panel lower header 4-3, be arranged on convection current tube panel tube bank 4-2 top and the bottom, right side and and its UNICOM be on the right side of convection current tube panel upper collecting chamber 4-5 and right side convection current tube panel lower header 4-6, described convection current tube panel external wall membrane wall 4-8, left side wall fin panel casing 3-3, right-side wall fin panel casing 3-4 and upper and lower welding steel 8 form both sides and close convection pass, left side convection current tube panel tube bank 4-1 and right side convection current tube panel tube bank 4-2 is distributed in the convection pass on both sides respectively,
When boiler adopts smoke three-pass structure, the pipe row at left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4 rear portion has loose bowels as furnace outlet, in left and right side convection pass, each increase by one group of convective heat exchange tube bundles formula tube panel structure 4 with membrane wall is respectively divided into two convection pass the convection pass of both sides, to form smoke three-pass structure.
When described boiler is steam boiler, also comprise be arranged in radiation heat transfer fin panel casing tube panel structure 3 left side wall fin panel casing 3-3 or right-side wall fin panel casing 3-4 above drum 2, described drum 2 is connected with each upper collecting chamber by carbonated drink fairlead 7.
The part that described convective heat exchange tube bundles formula tube panel structure 4 rear portion extends constitutes afterbody smoke-box 4-7 with rear wall fin panel casing 3-2.
Flue gas deep cooler is arranged in described afterbody smoke-box 4-7 inside or back.
Described radiation heat transfer fin panel casing tube panel structure 3 and convection current tube panel external wall membrane wall 4-8 all adopt light pipe and band steel to be welded or adopt the extended surface tube of direct rolling and forming.
Described left side convection current tube panel tube bank 4-1 and right side convection current tube panel tube bank 4-2 all adopts convection current to expand strengthening heating surface, and the tube bank of high-temperature region convection current tube panel adopts arc fin 10 enhanced heat exchange, and the tube bank of low-temperature space convection current tube panel adopts pin fin structure 11 enhanced heat exchange.
Be divided into the mating interface of radiation heat transfer fin panel casing tube panel structure 3 and convective heat exchange tube bundles formula tube panel structure 4, two modules can use Plate Welding or use sealing bolt or Flange joint in boiler along left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4.
Add or reduce the tube panel number of left side convection current tube panel tube bank 4-1 and right side convection current tube panel tube bank 4-2 as required, namely can realize from low capacity to Large Copacity tube panel formula water pipe single structure.
Compared to the prior art, tool has the following advantages in the present invention:
1. compared with traditional Small And Medium Capacity smaller hard flour pancake boiler, the present invention all adopts water pipe pipe panelized construction, manufacturing process is simple, eliminate the complicated technology structures such as the flue of smaller hard flour pancake boiler, return combustion chamber, smoke pipe and tube sheet, avoid the generation of tube-plate fracture, the two drum of A, D, O type that simultaneously eliminates adds the labyrinths such as convection bank, effectively reduces the welding job amount of workman, avoids the cracking and leakage accident that vibrate and cause; The danger of single water pipe booster is far below the smaller hard flour pancake boiler of volume class, and safety of structure is far above pan shell type volume class structure of container.
2, compared with water-tube fuel oil gas fired-boiler structure in the past, convective heat exchange tube bundles formula tube panel symmetrical configuration of the present invention is distributed in the both sides of " O " shape structure, instead of traditional convection heating surface being distributed in boiler rear, not only save the space of boiler room, again convenient installation and maintenance; Structure of the present invention can meet various boiler capacity requirement, all realizes full tube panel single structure from low capacity to Large Copacity, and convection outside tube panel number can flexible modulation according to demand; In, Large Copacity also can realize that modularization assembling dispatches from the factory, fast-assembling transport, manufacturing process is simple, avoids traditional medium-and-large-sized water-tube boiler Site Welding amount large, the problems such as difficult quality guarantee.
3. compared with conventional fuel oil gas industry boiler, the present invention adopts modular design, is easy to standardization and seriation, is easy to transport and assembling, and be easy to dismounting and safeguard, the time between overhauls(TBO) is short; In, Large Copacity realizes " O " shape or " D " tee section For Calculating Radiation Heat Transfer In Furnaces fin panel casing modularization and convection bank formula tube panel construction package dispatches from the factory, convection outside tube panel scene realizes modularization assembling docking, making in site is avoided to weld the independently heavy welding job that brings of pipe fitting of every root, greatly reduce Site Welding workload, improve welding quality, decrease hidden danger, shorten installation period, significantly improve product quality, ensure boiler safe operation more.
4. within the scope of Small And Medium Capacity and middle Large Copacity full capacity, realize the generalization of oil-burning gas-fired boiler structure, meet various boiler capacity requirement, fundamentally breach the bottleneck that the conventional fuel-firing gas-firing of China exists water pipe and fire tube dualization structure all the time, reach safe and reliable to operation, fast-assembling, shortening installation period, overhaul actual requirement easily; When for steam boiler, drum is by carbonated drink fairlead and fin panel casing upper collecting chamber and heat convection tube panel upper collecting chamber UNICOM.
5. burner hearth surrounding water-cooling wall of the present invention and convection current tube panel exterior wall all adopt membrane wall structure, alleviate furnace wall thickness and weight, can be welded into assembly dispatch from the factory by manufactory, install quick and convenient, good airproof performance Air Leakage Into Boilers is few, and area of dissipation significantly reduces, radiation loss significantly reduces, and boiler thermal output improves.
6. phase adopts bundled tube Flag pattern heat surface in the convection current face that is subject to than ever, convection current tube panel tube bank in the present invention all adopts extended surface enhanced heat exchange, the tube bank of high-temperature region convection current tube panel adopts arc fin enhanced heat exchange, comparatively low-temperature space adopts the strengthening of pin wing to be heated, Needle fin tube is owing to utilizing the separation of fluid while expansion heat transfer area, periodically initial the caused disturbance in Secondary Flow or boundary layer, boundary layer is constantly damaged thus increases its heat transfer coefficient, heat exchange efficiency is far above the threaded flue in Flag pattern heat surface and smaller hard flour pancake boiler, make heat conduction reinforced Be very effective.
7. can realize production domesticization completely and the large-scale production of full tube panel formula water-tube fuel oil gas fired-boiler technology; achieve enhanced heat exchange, compact conformation and energy-efficient complete unification; meet the developing goal of country; fill up the blank of full capacity Needle fin tube screen formula water-tube fuel oil gas fired-boiler in the world, belong to comprehensive clean energy resource energy-saving and emission-reduction product.
Accompanying drawing explanation
Fig. 1 is the structural representation of novel full tube panel formula fired gas-fired hot water boiler.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural representation of novel full tube panel formula fuel-firing gas-firing steam boiler.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is that convection current of the present invention is heated tube panel arched ribs sheet reinforced structure schematic diagram.
Fig. 6 is that convection current of the present invention is heated tube panel pin wing reinforced structure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further explained in more detail.
As depicted in figs. 1 and 2, a kind of novel full tube panel formula high efficiency fuel gas fired-boiler of the present invention, comprise radiation heat transfer fin panel casing tube panel structure 3 and convective heat exchange tube bundles formula tube panel structure 4, described radiation heat transfer fin panel casing tube panel structure 3 comprises front wall fin panel casing 3-1, rear wall fin panel casing 3-2, left side wall fin panel casing 3-3, right-side wall fin panel casing 3-4 and the burner 1 be arranged on front wall fin panel casing 3-1, described front wall fin panel casing 3-1, rear wall fin panel casing 3-2, left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4 forms a closed chamber structure in the surrounding of burner 1, when boiler adopts flue gas central flame flame structure, pipe row is had loose bowels with the gas approach forming convection heating surface in the front portion of left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4, be arranged on front wall fin panel casing 3-1 top and the bottom and that be communicated with it is front wall upper collecting chamber 3-6 and front wall lower header 3-5 respectively, that the top and the bottom being arranged on rear wall fin panel casing 3-2 are also communicated with it is rear wall upper collecting chamber 3-7 and rear wall lower header 3-8 respectively, four headers are connected with side wall lower header 3-10 with the side wall upper collecting chamber 3-9 that left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4 share, described left side wall fin panel casing 3-3, right-side wall fin panel casing 3-4 and side wall lower header 3-9 and side wall upper collecting chamber 3-10 forms " O " tee section structure, convective heat exchange tube bundles formula tube panel structure 4 comprises left side convection current tube panel tube bank 4-1, right side convection current tube panel tube bank 4-2 and convection current tube panel external wall membrane wall 4-8, convective heat exchange tube bundles formula tube panel structure 4 is docked with welding steel 8 with left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4, be symmetrically distributed in the both sides of " O " shape structure, left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4 act as the inside wall membrane wall of left side convection current tube panel tube bank 4-1 and right side convection current tube panel tube bank 4-2 simultaneously respectively, be arranged on convection current tube panel tube bank 4-1 top and the bottom, left side and and its UNICOM be on the left of convection current tube panel upper collecting chamber 4-4 and left side convection current tube panel lower header 4-3, be arranged on convection current tube panel tube bank 4-2 top and the bottom, right side and and its UNICOM be on the right side of convection current tube panel upper collecting chamber 4-5 and right side convection current tube panel lower header 4-6, described convection current tube panel external wall membrane wall 4-8, left side wall fin panel casing 3-3, right-side wall fin panel casing 3-4 and upper and lower welding steel 8 form both sides and close convection pass, left side convection current tube panel tube bank 4-1 and right side convection current tube panel tube bank 4-2 is distributed in the convection pass on both sides respectively, when boiler adopts smoke three-pass structure, the pipe row at left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4 rear portion has loose bowels as furnace outlet, in left and right side convection pass, each increase by one group of convective heat exchange tube bundles formula tube panel structure 4 with membrane wall is respectively divided into two convection pass the convection pass of both sides, to form smoke three-pass structure.The part that described convective heat exchange tube bundles formula tube panel structure 4 rear portion extends constitutes afterbody smoke-box 4-7 with rear wall fin panel casing 3-2.Be divided into the mating interface of radiation heat transfer fin panel casing tube panel structure 3 and convective heat exchange tube bundles formula tube panel structure 4, two modules can use Plate Welding or use sealing bolt or Flange joint in boiler along left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4.
As the preferred embodiment of the present invention, flue gas deep cooler is arranged in described afterbody smoke-box 4-7 inside or back.
As the preferred embodiment of the present invention, described radiation heat transfer fin panel casing tube panel structure 3 and convection current tube panel external wall membrane wall 4-8 all adopt light pipe and band steel to be welded or adopt the extended surface tube of direct rolling and forming, reduce radiation loss, improve the thermal efficiency in stove, fin panel casing convenience quick for installation, reduces whole boiler thickness and weight.
As the preferred embodiment of the present invention, described left side convection current tube panel tube bank 4-1 and right side convection current tube panel tube bank 4-2 all adopts convection current to expand strengthening heating surface, as shown in Figure 5, the tube bank of high-temperature region convection current tube panel adopts arc fin 10 enhanced heat exchange, as shown in Figure 6, the tube bank of low-temperature space convection current tube panel adopts pin fin structure 11 enhanced heat exchange, and heat exchange efficiency effectively improves.
As the preferred embodiment of the present invention, add or reduce the tube panel number of left side convection current tube panel tube bank 4-1 and right side convection current tube panel tube bank 4-2 as required, namely can realize from low capacity to Large Copacity tube panel formula water pipe single structure.
As shown in Figure 3 and Figure 4, when described boiler is steam boiler, also comprise be arranged in radiation heat transfer fin panel casing tube panel structure 3 left side wall fin panel casing 3-3 or right-side wall fin panel casing 3-4 above drum 2, described drum 2 is connected with each upper collecting chamber by carbonated drink fairlead 7.
The operation principle of flue gas flow of the present invention is: when boiler adopts flue gas central flame flame structure, the high-temperature flue gas and the burner hearth surrounding fin panel casing that are positioned at the burner 1 burning generation on front wall fin panel casing 3-1 carry out radiation heat transfer, burner hearth surrounding fin panel casing comprises front wall fin panel casing 3-1, rear wall fin panel casing 3-2, left side wall fin panel casing 3-3, right-side wall fin panel casing 3-4, after high-temperature flue gas is strile-backd by burner hearth surrounding, arrange the exhanst gas outlet of having loose bowels from the anterior pipe of left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4 to go out and enter convection pass, with the left side convection current tube panel tube bank 4-1 of strengthening heating surface and right side convection current tube panel tube bank 4-2 and convection current tube panel external wall membrane wall 4-8 in sweep of gases convection pass after turning, then the part of convective heat exchange tube bundles formula tube panel structure 4 rear portion extension and the afterbody smoke-box 4-7 of rear wall fin panel casing 3-2 composition is flowed into, discharge from the outlet of afterbody smoke-box 4-7.Reduce flue-gas temperature further if think, reduce flue gas loss, flue gas deep cooler can be arranged in afterbody smoke-box 4-7 inside or back.
When boiler adopts smoke three-pass structure, be positioned at the rear wall fin panel casing 3-2 of the high-temperature flue gas flow direction that burner 1 burning on front wall fin panel casing 3-1 produces, high-temperature flue gas after carrying out radiation heat transfer with the fin panel casing of burner hearth surrounding is arranged from the pipe of having loose bowels at left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4 rear portion the furnace outlet formed and is entered convection pass, high-temperature flue gas after turning enters inner side convection pass and washes away in convection pass with the left side convection current tube panel tube bank 4-1 of strengthening heating surface and right side convection current tube panel tube bank 4-2 and convection current tube panel external wall membrane wall 4-8, then flue gas flow to inner side convection pass front end turn again enter outside convection pass, afterbody smoke-box 4-7 is entered after washing away left side convection current tube panel tube bank 4-1 and right side convection current tube panel tube bank 4-2 and convection current tube panel external wall membrane wall 4-8, discharge from the outlet of afterbody smoke-box 4-7.Equally, reduce flue-gas temperature further if think, reduce flue gas loss, flue gas deep cooler can be arranged in afterbody smoke-box 4-7 inside or back.
Water flow-path operation principle of the present invention is as follows: when for hot-water boiler, as depicted in figs. 1 and 2, by left side wall fin panel casing 3-3, right-side wall fin panel casing 3-4 and convective heat exchange tube bundles formula tube panel structure 4 are divided into front and rear, first, boiler blow-down water enters side wall lower header 3-10 rear portion and rear wall lower header 3-8 from water inlet header 5, through the rear portion of left side wall fin panel casing 3-3 and right-side wall fin panel casing 3-4 heating rising enter side wall upper collecting chamber 3-9 rear portion and after wall upper collecting chamber 3-7, by entering the rear portion of left side convection current tube panel upper collecting chamber 4-4 and right side convection current tube panel upper collecting chamber 4-5 communicating pipe 9, left side convection current tube panel lower header 4-3 and right side convection current tube panel lower header 4-6 is dropped to from the pipe row at convective heat exchange tube bundles formula tube panel structure 4 rear portion, the pipe row flowing through convective heat exchange tube bundles formula tube panel structure 4 front portion is again risen by heating and imports left side convection current tube panel upper collecting chamber 4-4 and right side convection current tube panel upper collecting chamber 4-5, then side wall lower header 3-10 front portion and front wall lower header 3-5 is entered through down-comer 6, last hot water flows through left side wall fin panel casing 3-3, right-side wall fin panel casing 3-4 pipe row that is anterior and front wall membrane wall 3-1 enters side wall upper collecting chamber 3-9 and front wall upper collecting chamber 3-6 after being heated and rising, supply therrmodynamic system is flowed out through fairlead.
When boiler is steam boiler, as shown in Figure 3 and Figure 4: convective heat exchange tube bundles formula tube panel structure 4 is divided into front portion, middle part and rear portion three part, first, boiler feedwater enters left side convection current tube panel lower header 4-3 and right side convection current tube panel lower header 4-6 rear portion from water inlet header 5, the pipe flowing through convective heat exchange tube bundles formula tube panel structure 4 rear portion is heated and rises to left side convection current tube panel upper collecting chamber 4-4 and right side convection current tube panel upper collecting chamber 4-5, continue the pipe flowed through in the middle part of convective heat exchange tube bundles formula tube panel structure 4 and drop to left side convection current tube panel lower header 4-3 and right side convection current tube panel lower header 4-6, left side convection current tube panel upper collecting chamber 4-4 is imported again after the pipe of convective heat exchange tube bundles formula tube panel structure 4 front portion is heated rising, right side convection current tube panel upper collecting chamber 4-5 also enters drum 2 through carbonated drink fairlead 7, the down-comer 6 that drum 2 bottom connects supplies water to the front wall lower header 3-5 of radiation heat transfer fin panel casing, rise after front wall fin panel casing 3-1 heats and import front wall upper collecting chamber 3-6, introduce drum through carbonated drink fairlead 7 and complete Natural Circulation, the down-comer be connected with drum 2 supplies water to side wall lower header 3-10, the pipe heating of the left side wall fin panel casing 3-3 on " O " tee section and right-side wall fin panel casing 3-4 is risen and is imported side wall upper collecting chamber 3-9, introduces drum 2 complete Natural Circulation through carbonated drink fairlead 7, drum 2 connect down-comer give rear wall lower header 3-8 supplies water, through after wall fin panel casing 3-2 pipe heating rising remittance after wall upper collecting chamber 3-7, enter drum 2 through carbonated drink fairlead 7 and complete Natural Circulation.The saturated vapor be separated through carbonated drink supplies therrmodynamic system from drum 2 upper outlet.
Claims (8)
1. a novel full tube panel formula high efficiency fuel gas fired-boiler, it is characterized in that: comprise radiation heat transfer fin panel casing tube panel structure (3) and convective heat exchange tube bundles formula tube panel structure (4), described radiation heat transfer fin panel casing tube panel structure (3) comprises front wall fin panel casing (3-1), rear wall fin panel casing (3-2), left side wall fin panel casing (3-3), right-side wall fin panel casing (3-4) and the burner (1) be arranged on front wall fin panel casing (3-1), described front wall fin panel casing (3-1), rear wall fin panel casing (3-2), left side wall fin panel casing (3-3) and right-side wall fin panel casing (3-4) form a closed chamber structure in the surrounding of burner (1),
When boiler adopts flue gas central flame flame structure, the anterior pipe row of left side wall fin panel casing (3-3) and right-side wall fin panel casing (3-4) has loose bowels the gas approach forming convection heating surface, be arranged on front wall fin panel casing (3-1) top and the bottom and what be communicated with it is front wall upper collecting chamber (3-6) and front wall lower header (3-5) respectively, what the top and the bottom being arranged on rear wall fin panel casing (3-2) were also communicated with it is rear wall upper collecting chamber (3-7) and rear wall lower header (3-8) respectively, four headers and left side wall fin panel casing (3-3) and right-side wall fin panel casing (3-4) the side wall upper collecting chamber (3-9) that shares be connected with side wall lower header (3-10), described left side wall fin panel casing (3-3), right-side wall fin panel casing (3-4) and side wall upper collecting chamber (3-9) and side wall lower header (3-10) composition " O " tee section structure, convective heat exchange tube bundles formula tube panel structure (4) comprises left side convection current tube panel tube bank (4-1), the tube bank of right side convection current tube panel (4-2) and convection current tube panel external wall membrane wall (4-8), convective heat exchange tube bundles formula tube panel structure (4) docks with welding steel (8) with left side wall fin panel casing (3-3) and right-side wall fin panel casing (3-4), be symmetrically distributed in the both sides of " O " shape structure, left side wall fin panel casing (3-3) and right-side wall fin panel casing (3-4) act as the inside wall membrane wall of left side convection current tube panel tube bank (4-1) and right side convection current tube panel tube bank (4-2) simultaneously respectively, be arranged on convection current tube panel tube bank (4-1) top and the bottom, left side and and its UNICOM be on the left of convection current tube panel upper collecting chamber (4-4) and left side convection current tube panel lower header (4-3), be arranged on convection current tube panel tube bank (4-2) top and the bottom, right side and and its UNICOM be on the right side of convection current tube panel upper collecting chamber (4-5) and right side convection current tube panel lower header (4-6), described convection current tube panel external wall membrane wall (4-8), left side wall fin panel casing (3-3), convection pass is closed in right-side wall fin panel casing (3-4) and upper and lower welding steel (8) composition both sides, left side convection current tube panel tube bank (4-1) and right side convection current tube panel tube bank (4-2) are distributed in the convection pass on both sides respectively,
When boiler adopts smoke three-pass structure, the pipe row at left side wall fin panel casing (3-3) and right-side wall fin panel casing (3-4) rear portion has loose bowels as furnace outlet, in left and right side convection pass, each increase by one group of convective heat exchange tube bundles formula tube panel structure (4) with membrane wall is respectively divided into two convection pass the convection pass of both sides, to form smoke three-pass structure.
2. the novel full tube panel formula high efficiency fuel gas fired-boiler of one according to claim 1, it is characterized in that: when described boiler is steam boiler, also comprise the drum (2) of left side wall fin panel casing (3-3) or right-side wall fin panel casing (3-4) top being arranged in radiation heat transfer fin panel casing tube panel structure (3), described drum (2) is connected with each upper collecting chamber by carbonated drink fairlead (7).
3. the novel full tube panel formula high efficiency fuel gas fired-boiler of one according to claim 1, is characterized in that: the part that described convective heat exchange tube bundles formula tube panel structure (4) rear portion extends constitutes afterbody smoke-box (4-7) with rear wall fin panel casing (3-2).
4. the novel full tube panel formula high efficiency fuel gas fired-boiler of one according to claim 3, is characterized in that: flue gas deep cooler is arranged in described afterbody smoke-box (4-7) inside or back.
5. the novel full tube panel formula high efficiency fuel gas fired-boiler of one according to claim 1, is characterized in that: described radiation heat transfer fin panel casing tube panel structure (3) and convection current tube panel external wall membrane wall (4-8) all adopt light pipe and band steel are welded or adopt the extended surface tube of direct rolling and forming.
6. the novel full tube panel formula high efficiency fuel gas fired-boiler of one according to claim 1, it is characterized in that: described left side convection current tube panel tube bank (4-1) and right side convection current tube panel tube bank (4-2) all adopt convection current to expand strengthening heating surface, the tube bank of high-temperature region convection current tube panel adopts arc fin (10) enhanced heat exchange, and the tube bank of low-temperature space convection current tube panel adopts pin fin structure (11) enhanced heat exchange.
7. the novel full tube panel formula high efficiency fuel gas fired-boiler of one according to claim 1, it is characterized in that: along left side wall fin panel casing (3-3) and right-side wall fin panel casing (3-4), boiler is divided into radiation heat transfer fin panel casing tube panel structure (3) and convective heat exchange tube bundles formula tube panel structure (4), the mating interface of two modules can use Plate Welding or use sealing bolt or Flange joint.
8. the novel full tube panel formula high efficiency fuel gas fired-boiler of one according to claim 1, it is characterized in that: the tube panel number adding or reduce left side convection current tube panel tube bank (4-1) and right side convection current tube panel tube bank (4-2) as required, namely can realize from low capacity to Large Copacity tube panel formula water pipe single structure.
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| CN105698165B (en) * | 2016-04-15 | 2018-03-13 | 东方电气集团东方锅炉股份有限公司 | A kind of chamber structure of CFBB |
| CN106838852B (en) * | 2017-03-10 | 2023-02-28 | 高峰 | Membrane type steam generator |
| CN111998325B (en) * | 2020-09-02 | 2021-09-10 | 河南永兴锅炉集团有限公司 | Split assembled natural gas fired boiler |
| CN112032698A (en) * | 2020-09-18 | 2020-12-04 | 江苏双良锅炉有限公司 | Novel low-nitrogen-emission cold flame combustion integrated steam boiler |
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