CN105042849A - Novel self-support forced-circulation oil-or-gas water-tube hot-water boiler - Google Patents
Novel self-support forced-circulation oil-or-gas water-tube hot-water boiler Download PDFInfo
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- CN105042849A CN105042849A CN201510480286.2A CN201510480286A CN105042849A CN 105042849 A CN105042849 A CN 105042849A CN 201510480286 A CN201510480286 A CN 201510480286A CN 105042849 A CN105042849 A CN 105042849A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention relates to a novel self-support forced-circulation oil-or-gas water-tube hot-water boiler. The hot-water boiler comprises a hearth defined by a membrane wall, a convection region and an air preheating region. A burner is arranged in the hearth, a plurality of S-shaped convection tubes which are arranged transversely are stacked in the convection region up and down, and the hearth is supported on the S-shaped convection tubes. An integrated header is arranged at the front ends of the hearth and the convection region and is communicated with the S-shaped convection tubes and the membrane wall of the hearth correspondingly respectively. The air preheating region is formed at the flue gas tail end of the convection region and is matched with the burner correspondingly. The membrane-wall hearth and the S-shaped convection tubes of the convection region are integrally connected through the integrated header and are supported mutually, and accordingly, a support steel frame is omitted, the whole water flow path is simple correspondingly, and the flow resistance is low.
Description
Technical field
The present invention relates to pipe hot water boiler technical field, be specifically related to a kind of novel self-support type fuel-firing gas-firing pipe hot water boiler.
Background technology
At present, China's energy consumption per unit of output value is 2.3 times of world average level, and main energy-consuming product specific energy consumption is higher than Foreign Advanced Lerel by 40%; The energy consumption that China often creates one dollar of GNP is 4.97 times of Germany, 4.43 times of Japan, 2.1 times of the U.S., 1.65 times of India, this be cause that entreprise cost rises, one of the major reason of deficiency in economic performance.According to investigations, China's industrial products energy, raw-material consumption account for about 75% of enterprise's production cost, the benefit that one percentage point just can obtain more than 100 hundred million yuan if reduce.
Recent two decades comes, and on the one hand, the development rate of oil, natural gas improves greatly, and country eliminates the restriction that large-and-medium size cities use oil product and natural gas; On the other hand, along with the enhancing of global environmental consciousness, Chinese national economy develops rapidly, living standards of the people improve constantly, China adjusts fuel policy, for improving environmental pollution and the air quality of large-and-medium size cities, government starts to encourage public enterprises and institutions to use oil product or natural gas, thus greatly accelerates the development of oil-burning gas-fired boiler.
Different from coal burning boiler, fuel-firing gas-firing stove does not have thermo-lag effect, and after blowing out, boiler is not vaporized danger, and therefore arrange do not have many restrictions to hot-water boiler heating surface, boiler type is also varied.The type of furnace that China mainly introduces, produce has the structures such as WNS horizontal tubular boiler, SZS two drum longitudinal water-tube boiler, corner tube boilers.This three classes type of furnace respectively has pluses and minuses, and WNS horizontal tubular boiler water capacity is comparatively large, and energy consumption is relatively slightly high; Energy-saving appliance or the air preheater of the two drum longitudinal water-tube boiler of SZS need external, and arrange occupation of land comparatively large, forced circulation water resistance is large; The header steelframe of corner tube boiler is more, heavier-weight, and flow process is many, complex structure.
Based on the shortcoming on existing boiler structure, simplify boiler structure, the boiler that exploitation integrated level is higher, make compact equipment, take up an area few, flow process is few, water resistance is low, minimum use header and supporting steel frame, minimizing equipment consumptive material, reduces device fabrication cost, is the problem that those skilled in the art need to think deeply.
Summary of the invention
Technical problem to be solved by this invention provides a kind of novel self-supporting forced circulation fuel-firing gas-firing pipe hot water boiler for above-mentioned prior art, simplifies structure, improves the integrated level of hot-water boiler, and appropriate design and layout each portion structure, reduce equipment consumptive material.
The present invention's adopted technical scheme that solves the problem is: a kind of novel self-supporting forced circulation fuel-firing gas-firing pipe hot water boiler, comprise the burner hearth that membrane wall surrounds, convective region, and air preheating area, described burner hearth is configured with burner, in described convective region, heap builds the snakelike convection tube of some lateral arrangement up and down, and described burner hearth is supported on aforementioned snakelike convection tube; The front end of described burner hearth and convective region arranges integral type header, described integral type header is communicated with the described snakelike convection tube of convective region is corresponding with the membrane wall of burner hearth respectively, system water enters from the water return outlet bottom integral type header, flow through the snakelike convection tube of convective region and the membrane wall of burner hearth successively, finally from the delivery port water outlet at integral type header top; Described air preheating area be arranged on described convective region flue gas tail end and with described burner corresponding matching.
Preferably, described integral type header comprises bottom header, intermediate header and top header, and described water return outlet is arranged in the header of described bottom and with the snakelike convection tube of convective region and is communicated with, and described bottom header is upwards communicated to intermediate header; Described intermediate header is communicated with the membrane wall of burner hearth again, is finally upwards communicated to described top header, and described delivery port is arranged in the header of described top.
Preferably, the afterbody of described burner hearth be have loose bowels pipe form outlet smokestack, described outlet smokestack is corresponding with the gas approach of described convective region.
Preferably, described air preheating area configures longitudinal shell and tube air preheater, and the lower end of described longitudinal shell and tube air preheater is shaped to into mouth and air inlet, and upper end is shaped to out smoke-box, described in enter the tail flue gas outlet of the corresponding convective region of mouth.Burner and longitudinal shell and tube air preheater coordinate, flexible arrangement.
Further, the snakelike convection tube bottom of described convective region arranges base for supporting, the preferred adiabatic base of base for supporting, and the snakelike convection tube of convective region is directly supported on base for supporting, and described integral type header is also supported on this base for supporting.
Comparatively reasonably arrange and be, described burner hearth, convective region, and air preheating area outsourcing heat-insulation layer.
Pipe hot water boiler of the present invention is integrated on base for supporting, convective region adopts the snakelike convection tube piling the lateral arrangement at base up and down, thus burner hearth can be made directly to be supported on the top of the snakelike convection tube of convective region, without the need to supporting pipe support, achieve self-supporting, integral type header is also directly be supported on base for supporting, and the critical piece height of boiler is integrated, compact conformation, saves equipment consumptive material.
Membrane wall burner hearth and snakelike convection tube are waterpipe type heating surface, water capacity is little, adopt the membrane wall corresponding matching of integral type header and snakelike convection tube and burner hearth again, the water capacity of hot water used in system system is less, thus this hot-water boiler heats up very fast, after blowing out, heat loss is few, and be particularly suitable for the user of frequent start and stop, comprehensive energy efficiency is high.
Utilize the tail end flue gas of convective region to carry out preheating to the air of burner by longitudinal shell and tube air preheater, reduce tail cigarette temperature simultaneously, make exhaust gas temperature be reduced to less than 100 DEG C, improve boiler efficiency.
Compared with prior art, the invention has the advantages that:
(1) hot-water heating system is by integral type header, system water is entered by the water return outlet bottom integral type header, enters the snakelike convection tube of convective region and the membrane wall of burner hearth respectively, and finally from top header water outlet, whole Water flow-path is relatively more succinct, and flow resistance is lower.The horizontal vertical of this header, has simplified header use amount, reduces steel consumption.Compared with the corner tube boiler of same specification, header use amount reduces 80%, and short flow, flow resistance reduces.
(2) the snakelike convection tube of membrane wall burner hearth and convective region connects into an entirety by integral type header, mutual support, then be arranged on base for supporting, save supporting steel frame, they are by being closely connected each other, support each other, outside only needs simply to support the light-duty skeleton of outsourcing heat-insulation layer, greatly saves supporting construction consumptive material.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of hot-water boiler in the embodiment of the present invention;
Fig. 2 is the end face partial sectional view of hot-water boiler in the embodiment of the present invention;
Fig. 3 is the structural representation of integral type header in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figure 1 to Figure 3, one in the present embodiment novel self-supporting forced circulation fuel-firing gas-firing pipe hot water boiler, comprise the burner hearth A that membrane wall 2 surrounds, convective region B, with air preheating area C, burner hearth A is configured with burner 1, the afterbody of burner hearth A be have loose bowels pipe 3 form outlet smokestack, outlet smokestack corresponding with the gas approach of convective region B; In convective region B, heap builds the snakelike convection tube 4 of some lateral arrangement up and down, and upper and lower snakelike convection tube 4 solid matter is staggered in arrangement, and burner hearth A is supported on aforementioned snakelike convection tube 4; In the front end of burner hearth A and convective region B, integral type header 5 is set, integral type header 5 is respectively with the snakelike convection tube 4 of convective region B with the membrane wall 2 of burner hearth A is corresponding is communicated with, system water enters from the water return outlet 5.1 bottom integral type header 5, flow through the snakelike convection tube 4 of convective region B and the membrane wall 2 of burner hearth A from lower to upper successively, finally from delivery port 5.2 water outlet at integral type header 5 top; Air preheating area C be arranged on convective region B flue gas tail end and with burner 1 corresponding matching, aforementioned burner hearth A, convective region B, and air preheating area C outsourcing heat-insulation layer 6.
Particularly, see Fig. 3, above-mentioned integral type header comprises bottom header a, intermediate header b and top header c, and water return outlet 5.1 is arranged on described bottom header a and with the snakelike convection tube 4 of convective region C and is communicated with, and described bottom header a is upwards communicated to intermediate header b; Described intermediate header b is communicated with the membrane wall 2 of burner hearth A again, is finally upwards communicated to described top header c, and delivery port 5.2 is arranged on described top header c.
Further, snakelike convection tube 4 bottom of convective region B arranges base for supporting 7, and base for supporting 7 is adiabatic base, and the snakelike convection tube 4 of convective region B is supported on base for supporting 7, and integral type header 5 is also supported on this base for supporting 7.
Above-mentioned air preheating area C configures longitudinal shell and tube air preheater 8, the lower end of longitudinal shell and tube air preheater 8 is shaped to into mouth 8.1 and air inlet 8.2, upper end is shaped to out smoke-box 8.3, enter the tail flue gas outlet of the corresponding convective region B of mouth 8.1, adaptability location arrangements made by burner 1 and longitudinal shell and tube air preheater 8.
Hot-water heating system is by integral type header 5, and system water is entered by the water return outlet 5.1 bottom integral type header 5, enters the snakelike convection tube 4 of convective region B and the membrane wall 2 of burner hearth A respectively, and finally from top header water outlet, whole Water flow-path is relatively more succinct, and flow resistance is lower.As shown in Figure 3, the horizontal vertical of this integral type header 5, has simplified header use amount, reduces steel consumption.
Membrane wall burner hearth A and the snakelike convection tube of convective region B connect into an entirety by integral type header 5, mutual support, then be arranged on base for supporting 7, save supporting steel frame, they are by being closely connected each other, support each other, outside only needs simply to support the light-duty skeleton of outsourcing heat-insulation layer 6, greatly saves supporting construction consumptive material.
In addition to the implementation, the present invention also includes other embodiments, the technical scheme that all employing equivalents or equivalent substitute mode are formed, within the protection domain that all should fall into the claims in the present invention.
Claims (6)
1. a novel self-supporting forced circulation fuel-firing gas-firing pipe hot water boiler, it is characterized in that: comprise the burner hearth that membrane wall surrounds, convective region, and air preheating area, described burner hearth is configured with burner, in described convective region, heap builds the snakelike convection tube of some lateral arrangement up and down, and described burner hearth is supported on aforementioned snakelike convection tube; The front end of described burner hearth and convective region arranges integral type header, described integral type header is communicated with the described snakelike convection tube of convective region is corresponding with the membrane wall of burner hearth respectively, system water enters from the water return outlet bottom integral type header, flow through the snakelike convection tube of convective region and the membrane wall of burner hearth successively, finally from the delivery port water outlet at integral type header top; Described air preheating area be arranged on described convective region flue gas tail end and with described burner corresponding matching.
2. novel self-supporting forced circulation fuel-firing gas-firing pipe hot water boiler according to claim 1, it is characterized in that: described integral type header comprises bottom header, intermediate header and top header, described water return outlet is arranged in the header of described bottom and with the snakelike convection tube of convective region and is communicated with, and described bottom header is upwards communicated to intermediate header; Described intermediate header is communicated with the membrane wall of burner hearth again, is finally upwards communicated to described top header, and described delivery port is arranged in the header of described top.
3. novel self-supporting forced circulation fuel-firing gas-firing pipe hot water boiler according to claim 1, is characterized in that: the afterbody of described burner hearth be have loose bowels pipe form outlet smokestack, described outlet smokestack is corresponding with the gas approach of described convective region.
4. novel self-supporting forced circulation fuel-firing gas-firing pipe hot water boiler according to claim 1, it is characterized in that: described air preheating area configures longitudinal shell and tube air preheater, the lower end of described longitudinal shell and tube air preheater is shaped to into mouth and air inlet, upper end is shaped to out smoke-box, described in enter the tail flue gas outlet of the corresponding convective region of mouth.
5. novel self-supporting forced circulation fuel-firing gas-firing pipe hot water boiler according to claim 1, is characterized in that: the snakelike convection tube bottom of described convective region is base for supporting, and described integral type header is also supported on this base for supporting.
6. novel self-supporting forced circulation fuel-firing gas-firing pipe hot water boiler according to claim 1, is characterized in that: described burner hearth, convective region, and air preheating area outsourcing heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510480286.2A CN105042849A (en) | 2015-08-08 | 2015-08-08 | Novel self-support forced-circulation oil-or-gas water-tube hot-water boiler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510480286.2A CN105042849A (en) | 2015-08-08 | 2015-08-08 | Novel self-support forced-circulation oil-or-gas water-tube hot-water boiler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981455A (en) * | 2020-08-10 | 2020-11-24 | 浙江特富发展股份有限公司 | Forced recirculation water pipe steam boiler system and operation method thereof |
| CN112944299A (en) * | 2021-03-25 | 2021-06-11 | 江苏太湖锅炉股份有限公司 | Large-scale vertical organic heat carrier boiler |
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| CN102297413A (en) * | 2011-08-16 | 2011-12-28 | 江苏太湖锅炉股份有限公司 | Water-tube type fuel oil/gas boiler |
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Patent Citations (5)
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| CN201359378Y (en) * | 2009-01-21 | 2009-12-09 | 江苏双良锅炉有限公司 | Novel square-type fuel oil or fuel gas organic heat medium boiler with internal air preheater |
| CN102297413A (en) * | 2011-08-16 | 2011-12-28 | 江苏太湖锅炉股份有限公司 | Water-tube type fuel oil/gas boiler |
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| CN203454382U (en) * | 2013-07-26 | 2014-02-26 | 江苏双良锅炉有限公司 | Water tube membrane type wall structural reversal chamber water-cooling wet-back type fire tube hot-water boiler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111981455A (en) * | 2020-08-10 | 2020-11-24 | 浙江特富发展股份有限公司 | Forced recirculation water pipe steam boiler system and operation method thereof |
| CN112944299A (en) * | 2021-03-25 | 2021-06-11 | 江苏太湖锅炉股份有限公司 | Large-scale vertical organic heat carrier boiler |
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Application publication date: 20151111 |