CN103743095A - Self-supporting single-channel fuel oil/gas corner tube type hot water boiler - Google Patents
Self-supporting single-channel fuel oil/gas corner tube type hot water boiler Download PDFInfo
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- CN103743095A CN103743095A CN201410033197.9A CN201410033197A CN103743095A CN 103743095 A CN103743095 A CN 103743095A CN 201410033197 A CN201410033197 A CN 201410033197A CN 103743095 A CN103743095 A CN 103743095A
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Abstract
The invention discloses a self-supporting single-channel fuel oil/gas corner tube type hot water boiler which is unique and compact in structure, free of a steel frame to support or hang a boiler barrel, a convection bank and a coal economizer, low in metal consumption and good in energy-saving and environment-friendly properties. The self-supporting single-channel fuel oil/gas corner tube type hot water boiler comprises a corner tube frame, a hearth, a flue, an inlet header, an intermediate header and an outlet header. The corner tube frame is arranged longitudinally and a plurality of self-supporting legs are arranged at the lower end of the corner tube frame; the hearth and the flue are welded and fixed in the corner tube frame and form an integrated single channel with upper and lower membrane walls and left and right membrane walls, and the hearth and the fuel are variable-section constant-speed channels. A high-temperature heating surface composed of a plurality of high-temperature heating surface modules, a medium-temperature heating surface composed of a plurality of medium-temperature heating surface modules, and a low-temperature heating surface composed of a plurality of low-temperature heating surface modules are orderly arranged in the flue, and the inlet header and the outlet head are arranged under the flue gas outlet of the flue and above the tail part of the hearth correspondingly one to one.
Description
Technical field
The present invention relates to a kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler.
Background technology
The energy is the important substance basis that human society is depended on for existence and development.According to China " 12 " energy development target of National Energy Board's in October, 2012 issue, China will implement Energy consumption intensity and total quantity consumed dual control system, accelerate energy structure optimizing process.Therefore energy-saving and emission-reduction have become the common task of entire society.According to the prevention and control of air pollution action plan that in September, 2013, State Council just promulgated, accelerate clean energy resource and substitute utilization, strengthen natural gas, coal gas, coal bed gas supply.For this reason, the coal of boiler changes gas and becomes the Important Action that China's present stage improvement ambient air pollutes.
Fired gas-fired hot water boiler refers to that the heat that combustible gas or oil produce after burning produces the boiler of hot water for heating water.Existing fired gas-fired hot water boiler is mostly SZS series oil burning boiler and WNS series.SNS series of heat homogeneous solution-type reactor is the water-tube steam boiler of a kind of pair of drum, longitudinal, the burning of pressure-fired chamber, this boiler adopts D type to arrange, upper and lower drum is longitudinally to arrange, flue gas flow partition wall is film-type water-cooling tube wall, what boiler left side was arranged is convection bank, to the boiler with superheater, superheater is arranged in stockhole turning area.Its primary structure of WNS series of heat homogeneous solution-type reactor by shell, flue, turn smoke-box, smoke pipe etc. and form, flue is corrugated internal furnace; Between shell and tube sheet, adopt round steel cable-stayed support, between return combustion chamber and back tube sheet, adopt the reinforcement in addition of short stay bolt bar.There is the problem that steel consumption is large, cost is high, structure is loaded down with trivial details, the thermal efficiency is not high in these fired gas-fired hot water boilers.
Summary of the invention
The object of the invention is to overcome the defect of prior art and a kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler is provided, its structure is unique, compact, without steelframe, supports or suspention, and metal consumption is low, and energy-conserving and environment-protective performance is good.
The object of the present invention is achieved like this: a kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, comprise cornue frame, burner hearth, flue, high-temperature surface, middle temperature heating surface, low temperature heating surface, import header, some intermediate headers and outlet header, wherein
Described cornue frame longitudinally arranges and lower end arranges several self-supporting pin;
Described burner hearth and flue are welded in described cornue frame, and described burner hearth and flue form holistic single channel by upper and lower membrane wall and left and right membrane wall, and described burner hearth and flue are variable cross-section uniform flow passage;
Described high-temperature surface, middle temperature heating surface and low temperature heating surface are in A-P is arranged in described flue successively; Described high-temperature surface is comprised of several high-temperature surface modules, and described middle temperature heating surface is comprised of warm heating surface module in several, and described low temperature heating surface is comprised of several low temperature heating surface modules;
Described import header and outlet header are arranged in the below of exhanst gas outlet and the afterbody of the described burner hearth top of described flue correspondingly;
Described intermediate header is arranged between described high-temperature surface and middle temperature heating surface, between described middle temperature heating surface and described low temperature heating surface and between described low temperature heating surface and the afterbody of described flue;
The flue gas of described hot-water boiler is single channel flow process, be that fuel and air carry out mixed combustion by burner, in described burner hearth, produce thermal-flame and flue gas, high-temperature flue gas enters successively described high-temperature surface, middle temperature heating surface, low temperature heating surface and leaves described flue by exhanst gas outlet, finally by chimney, enter atmosphere, exhaust gas temperature is 70 ℃～150 ℃;
The water circulation of described hot-water boiler is forced circulation, the backwater that is user enters the upper of boiler tail after circulating pump pressurization, lower membrane wall header, then along upper, lower membrane wall flows to the upper of boiler front end, lower membrane wall header, then uniform distribution is given left, right membrane wall upper, lower header, through a left side, after right membrane wall heat exchange, arrive the intermediate header between described low temperature heating surface and the afterbody of described flue, through hot water inlet tube, distribute to described import header again, then the low temperature heating surface of flowing through successively, middle temperature heating surface, after high-temperature surface, enter described outlet header, complete the heating process of recirculated water.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, the variable cross-section uniform flow passage of described burner hearth and flue is that the described upper membrane wall by the described lower membrane wall of facing structure directly, left and right membrane wall and right and wrong structure forms.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, described high-temperature surface module adopts light pipe to make, and described middle temperature heating surface module and described low temperature heating surface module all adopt the pipe of band expansion heating face to form.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, the pipe of described band expansion heating face comprises light pipe, spiral fin coil, H type finned tube, extended surface tube, tooth punching finned tube.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, described exhanst gas outlet is also arranged air preheater.
Above-mentioned self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, wherein, the front portion of the upper and lower header of described left and right membrane wall is provided with partition apparatus.
The feature of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present invention is:
1. whole boiler is supported and is strengthened by self cornue frame and self-supporting pin, without steelframe, support or suspention, heating surface characteristics of compact layout, without drum, convection bank and economizer, metal consumption is low, and flue gas resistance is little, and floor space is little and reduce factory building height, compare with other pattern boiler of same initial conditions, steel consumption reduces more than 15%;
2. three of boiler heating surfaces all adopt modularized design, can do according to demand to increase and decrease, and centering temperature or low-temperature heat exchange face employing extended surface, to compare with other pattern boiler of same initial conditions, steel consumption reduces more than 15%;
3. the smoke flow channels of boiler adopts the single channel design of uniform flow, has effectively strengthened the heat exchange efficiency of heating surface, compares with other pattern boiler of same initial conditions, and steel consumption reduces more than 10%.
Accompanying drawing explanation
Fig. 1 is the structural representation of self-bearing type fuel-firing gas-firing corner-tube hot-water boiler of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1, self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present invention, comprise cornue frame 1, burner hearth 2, flue 3, burner 30, high-temperature surface 31, middle temperature heating surface 32, low temperature heating surface 33, import header 4, outlet header 5, some intermediate headers 6 and partition apparatus 7, wherein:
Cornue frame 1 longitudinally arranges, the bottom of this cornue frame 1 arranges several self-supporting pin 8;
High-temperature surface 31, middle temperature heating surface 32 and low temperature heating surface 33 are in A-P is arranged in flue 3 successively; High-temperature surface 31 is formed by several high-temperature surface module assembleds, and high-temperature surface module adopts light pipe to make; Middle temperature heating surface 32 is formed by warm heating surface module assembled in several, and low temperature heating surface 33 is formed by several low temperature heating surface module assembleds; Middle temperature heating surface module and low temperature heating surface module all adopt the pipe of the band expansion heating face that comprises light pipe, spiral fin coil, H type finned tube, extended surface tube and tooth punching finned tube to form;
Import header 4 and outlet header 5 are arranged in the below of exhanst gas outlet 34 and the afterbody of burner hearth 2 top of flue 3 correspondingly;
The flue gas flow of hot-water boiler is that single channel flows, be that fuel and air carry out mixed combustion by burner 3, at the interior generation thermal-flame of burner hearth 2 and flue gas, high-temperature flue gas enters successively high-temperature surface 31, middle temperature heating surface 32, low temperature heating surface 33 and leaves flue 3 by exhanst gas outlet 34, finally by chimney, enter atmosphere, exhaust gas temperature is 70 ℃～150 ℃;
The water circulation of hot-water boiler is forced circulation, the backwater that is user enters the upper of boiler tail after circulating pump pressurization, lower membrane wall 21, 22 header, flow to again the upper of boiler front end, lower membrane wall 21, 22 header, then uniform distribution is given left, right membrane wall 23, 24 upper, lower header, through a left side, right membrane wall 23, after 24 heat exchange, arrive the intermediate header 6 between low temperature heating surface 33 and the afterbody of flue 3, through hot water inlet tube 9, distribute to import header 4 again, then the low temperature heating surface 33 of flowing through successively, middle temperature heating surface 32, the laggard inlet/outlet header 5 of high-temperature surface 33, complete the heating process of recirculated water.
At one, execute in example, the variable cross-section uniform flow passage of burner hearth 2 and flue 3 is that the upper membrane wall 21 by the lower membrane wall 22 of facing structure directly, left and right membrane wall 23,24 and right and wrong structure forms, the present embodiment adopts the cross section of burner hearth 2, the structure that the cross section of the cross section of high-temperature surface 31, middle temperature heating surface 32 and the cross section of low temperature heating surface 33 diminish gradually, and making the flow process of the exhanst gas outlet 34 of flue gas from burner hearth 2 to flue 3 is uniform flow.
The design feature of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present invention is: by cornue frame 1, the lower membrane wall 22 that forms burner hearth 2 and flue 3, right membrane wall 24, left membrane wall 23 and upper membrane wall 21, partition apparatus 7, self-supporting pin 8, high-temperature surface 31, in warm heating surface 32, low temperature heating surface 33, import header 4, outlet header 5, exhanst gas outlet 34, hot water inlet tube 9, intermediate header 6 be welded into a whole cornue frame structure, whole boiler only need support by self-supporting pin 8;
The technical characterstic of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler of the present invention is:
1. burner hearth and flue are single pass full film water cold wall structure, high, in low heating surface characteristics of compact layout, without drum, convection bank and economizer, therefore there is the feature that metal consumption is low, flue gas resistance is little, floor space is little and reduce factory building height;
2. boiler adopts self-bearing type supporting construction, without steelframe, supports;
3. the burner hearth of boiler and flue form a whole single channel structure by fin panel casing, make the expansion direction of boiler consistent;
4. the water circulation of boiler is forced circulation, and the line clear of water circulation is reasonable, makes the heat exchange of boiler reach optimum efficiency;
5. the burner hearth of boiler consists of fin panel casing, and good seal performance can guarantee boiler pressure-fired, low NOx combustion;
6. the high, medium and low temperature heating surface of boiler all adopts modularized design, can do according to demand to increase and decrease;
7. the high, medium and low temperature heating surface of boiler adopts the design of variable cross-section uniform flow and arranges along the flow direction of flue gas, makes the heat transfer of high, medium and low temperature heating surface even.
In addition, the temperature while discharging from flue due to flue gas is still higher, in the tail flue gas outlet of flue, arranges air preheater, can absorb the heat of flue gas, reduces the exhaust gas temperature of flue gas, has saved the energy, has improved heat exchange efficiency.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (6)
1. a self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler, comprises cornue frame, burner hearth, flue, high-temperature surface, middle temperature heating surface, low temperature heating surface, import header, some intermediate headers and outlet header, it is characterized in that,
Described cornue frame longitudinally arranges and lower end arranges several self-supporting pin;
Described burner hearth and flue are welded in described cornue frame, and described burner hearth and flue form holistic single channel by upper and lower membrane wall and left and right membrane wall, and described burner hearth and flue are variable cross-section uniform flow passage;
Described high-temperature surface, middle temperature heating surface and low temperature heating surface are in A-P is arranged in described flue successively; Described high-temperature surface is comprised of several high-temperature surface modules, and described middle temperature heating surface is comprised of warm heating surface module in several, and described low temperature heating surface is comprised of several low temperature heating surface modules;
Described import header and outlet header are arranged in the below of exhanst gas outlet and the afterbody of the described burner hearth top of described flue correspondingly;
Described intermediate header is arranged between described high-temperature surface and middle temperature heating surface, between described middle temperature heating surface and described low temperature heating surface and between described low temperature heating surface and the afterbody of described flue;
The flue gas of described hot-water boiler is single channel flow process, be that fuel and air carry out mixed combustion by burner, in described burner hearth, produce thermal-flame and flue gas, high-temperature flue gas enters successively described high-temperature surface, middle temperature heating surface, low temperature heating surface and leaves described flue by exhanst gas outlet, finally by chimney, enter atmosphere, exhaust gas temperature is 70 ℃～150 ℃;
The water circulation of described hot-water boiler is forced circulation, the backwater that is user enters the upper of boiler tail after circulating pump pressurization, lower membrane wall header, then along upper, lower membrane wall flows to the upper of boiler front end, lower membrane wall header, then uniform distribution is given left, right membrane wall upper, lower header, through a left side, after right membrane wall heat exchange, arrive the intermediate header between described low temperature heating surface and the afterbody of described flue, through hot water inlet tube, distribute to described import header again, then the low temperature heating surface of flowing through successively, middle temperature heating surface, after high-temperature surface, enter described outlet header, complete the heating process of recirculated water.
2. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, it is characterized in that, the variable cross-section uniform flow passage of described burner hearth and flue is that the described upper membrane wall by the described lower membrane wall of facing structure directly, left and right membrane wall and right and wrong structure forms.
3. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, it is characterized in that, described high-temperature surface module adopts light pipe to make, and described middle temperature heating surface module and described low temperature heating surface module all adopt the pipe of band expansion heating face to form.
4. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 3, is characterized in that, the pipe of described band expansion heating face comprises light pipe, spiral fin coil, H type finned tube, extended surface tube, tooth punching finned tube.
5. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, is characterized in that, described exhanst gas outlet is also arranged air preheater.
6. self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler according to claim 1, is characterized in that, the front portion of the upper and lower header of described left and right membrane wall is provided with partition apparatus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033197.9A CN103743095B (en) | 2014-01-24 | 2014-01-24 | A kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler |
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| CN201410033197.9A CN103743095B (en) | 2014-01-24 | 2014-01-24 | A kind of self-bearing type single channel fuel-firing gas-firing corner-tube hot-water boiler |
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| CN103743095B CN103743095B (en) | 2016-03-30 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019552A (en) * | 2014-05-30 | 2014-09-03 | 西安交通大学 | Water circulation structure of fuel gas corner tube hot-water boiler |
| CN106288371A (en) * | 2016-09-26 | 2017-01-04 | 江苏双良锅炉有限公司 | Forced circulation fuel-firing gas-firing pipe hot water boiler |
| CN104154661B (en) * | 2014-08-06 | 2017-02-01 | 西安交通大学 | Fuel oil and fuel gas angle pipe boiler structure for strengthening convection pipe screen through needle fins |
| CN107655204A (en) * | 2017-10-27 | 2018-02-02 | 北京奥林匹亚锅炉有限公司 | Horizontal atmospheric water boiler |
| CN108591997A (en) * | 2018-05-31 | 2018-09-28 | 上海工业锅炉研究所有限公司 | A kind of DHS corner tube types fuel-firing gas-firing steam 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 |
| CN114517912A (en) * | 2022-04-03 | 2022-05-20 | 江苏海德利热能设备制造有限公司 | High-efficiency steam boiler structure with large heat exchange area |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019552A (en) * | 2014-05-30 | 2014-09-03 | 西安交通大学 | Water circulation structure of fuel gas corner tube hot-water boiler |
| CN104019552B (en) * | 2014-05-30 | 2016-08-24 | 西安交通大学 | A kind of combustion gas angle pipe hot water boiler water circulation structure |
| CN104154661B (en) * | 2014-08-06 | 2017-02-01 | 西安交通大学 | Fuel oil and fuel gas angle pipe boiler structure for strengthening convection pipe screen through needle fins |
| CN106288371A (en) * | 2016-09-26 | 2017-01-04 | 江苏双良锅炉有限公司 | Forced circulation fuel-firing gas-firing pipe hot water boiler |
| CN107655204A (en) * | 2017-10-27 | 2018-02-02 | 北京奥林匹亚锅炉有限公司 | Horizontal atmospheric water boiler |
| CN108591997A (en) * | 2018-05-31 | 2018-09-28 | 上海工业锅炉研究所有限公司 | A kind of DHS corner tube types fuel-firing gas-firing steam 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 |
| CN114517912A (en) * | 2022-04-03 | 2022-05-20 | 江苏海德利热能设备制造有限公司 | High-efficiency steam boiler structure with large heat exchange area |
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Address after: 201114 Room 101 and 201, 4 building, 138 new Chun Ring Road, Minhang District, Shanghai. Patentee after: SHANGHAI INDUSTRIAL BOILER RESEARCH INSTITUTE Co.,Ltd. Address before: 200071 Shanghai city Zhabei District Baochang Road No. 297 Patentee before: SHANGHAI INDUSTRIAL BOILER Research Institute |