CN106322756A - Semi-condensation low-nitrogen discharge gas-fired hot water boiler - Google Patents
Semi-condensation low-nitrogen discharge gas-fired hot water boiler Download PDFInfo
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- CN106322756A CN106322756A CN201510401953.3A CN201510401953A CN106322756A CN 106322756 A CN106322756 A CN 106322756A CN 201510401953 A CN201510401953 A CN 201510401953A CN 106322756 A CN106322756 A CN 106322756A
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- boiler
- heat exchange
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Abstract
The invention discloses a semi-condensation low-nitrogen discharge gas-fired hot water boiler used in the boiler industry. The boiler comprises an expansion water supplementing tank, an atmosphere connection pipe, a water return pipe, locking nuts, locking pull rods, interlayer water passing sleeves, a water outlet pipe, a combustor, a boiler bottom layer water sleeve, a heat exchange strip, a boiler top cover, a chimney and a flue gas sensor opening. A combustion chamber of the boiler is composed of the boiler bottom layer water sleeve and the combustor, a 45-degree inclined plane is formed by the annular inner wall of the bottom layer water sleeve and the corresponding portion of a nozzle of the combustor, and therefore flame connection is convenient; the combustor is in a medium-pressure jet type and naturally sucks air, no premixing fan is arranged, and natural gas is used as fuel. Boiler layers are connected through the interlayer water passing sleeves, the two ends of each water passing sleeve are sealed through rubber rings, both the boiler top cover and the heat exchange strip are designed to be in a fin shape, boiler water enters the boiler from the water return pipe of the top cover and is drained out from the water outlet pipe of the boiler bottom layer water sleeve, and a good condensation effect is achieved.
Description
Technical field:
A kind of in boiler industry " partly condensing low-nitrogen discharged gas-fired water heating boiler ", belong to combustion
The technical field of gas heater structure.
Background technology:
In recent years, along with the continuous growth of World Economics, China has become worldwide adding
Work big country, national economy increases rapidly, and the consumption of the energy is the hugest, especially oil,
The consumption of the non-renewable energy resources such as natural gas, the several years from now on, saving the energy will become us
State basic policy and the direction of industries attempt.
Currently, the whole nation formation of large area haze and spreading, make air pollution extremely serious, right
Human health necessarily causes huge infringement, and the root that haze is formed is, industrial equipment (bag
Include boiler) and the nitrogen oxides that discharges time a large amount of automobile uses fuel combustion, eliminate or reduce
The discharge of nitrogen oxides is the fundamental way solving haze.
The modular " partly condensing low-nitrogen discharged gas-fired water heating boiler " of our company's research and development is instantly
Arising at the historic moment, its thermal efficiency is: 96.5%, is the tender person in power economized boiler, and it is not required to
Individually to set up huge boiler room and carry out remote heat energy conveying, but live, handling official business
And just can install in the building of Factory Building, so, not only save substantial amounts of construction investment but also subtract
Lack energy resource consumption；
After testing, the nitrogen oxide emission of this boiler is: 43.13mg/m3.Be " with
Boiler Air Pollutant Emission national standard " 1/9.3, be " newly constructed boiler atmosphere pollution
Discharge national standard " 1/4.6, be the 1/3.5 of special emission limit.Use the pot of our company
Stove product, it will save a large amount of combustion gas and greatly reduce the discharge of nitrogen oxides, benefiting the nation and the people.
Summary of the invention:
One " partly condensing low-nitrogen discharged gas-fired water heating boiler " in boiler industry including: swollen
Swollen water supply tank (1), logical air pipe (2), return pipe (3), locking nut (4) (15),
Locking pull bar (5) (12), interlayer water flowing set (6) (10), outlet pipe (7), burner
(8), boiler bottom water jacket (9), heat exchange fire seperating piece (11), heat exchange fin (13), boiler
Top cover (14), chimney (16), smoke detectors mouth (17), it is characterised in that:
1. expand moisturizing cabinet (1) described in, for the rectangular structure do not closed, by 0.8 mm of thickness
Corrosion resistant plate be welded, its with logical air pipe (2) and return pipe (3) mutual together with
It is connected with boiler body, when the heat transfer medium in boiler body reduces, by expanding in moisturizing cabinet
Medium supplemented；
2. locking nut (4), (15) are mechanical type tensioning mechanism with locking pull bar (5), (12),
By the tension split ring on boiler bottom water jacket (9) and boiler top cover (14), by boiler
Each layer strains locking up and down, prevents each layer of boiler to be subjected to displacement and interlayer adapter sleeve position is oozed
Leakage；
3. interlayer water flowing set (6), (10), for short shape metallic cylinder, are even by each layer of boiler body
Pipelined channel, during installation, the two ends of interlayer water flowing set (6-02) add rubber seal (6-01)
(6-03), when locking pull bar (5), (12) be locked nut (4), (15) apply pressure
After power locking, when can keep boiler operatiopn, each interlayer will not be subjected to displacement and seepage；
4. outlet pipe (7) is the outlet of boiler heat-transfer medium, refute into plate type heat exchanger through circulating pump or
Storage tank, carries out heat exchange or directly uses；
5. burner (8), by burner nozzle (8-01), burner fixed plate (8-02), (8-04),
Fuel gas inlet pipe (8-03) forms, and burner is injecting type, and gaseous-pressure is middle pressure, natural
Air-breathing, without premix blower fan, nozzle bore is 0.4 millimeter, pressure injection in using due to combustion gas,
Form natural aspiration so that combustion gas is just right with the proportioning of air, will not produce excess air
Suction, can ensure that combustion gas is burnt cmpletely, again will not due to have excess air cause
Flame is lowered the temperature, thus improves the thermal efficiency of boiler.
6. boiler bottom water jacket (9) is rectangle, and material is cast iron, common with burner (8)
The combustor of composition boiler, boiler bottom water jacket ring inner surface is designed with the inclined-plane of 45 degree,
The combustion gas making the nozzle (8-01) of burner (8) spray forms umbrella after bumping against 45 degree of inclined-planes
Scatter and be easy to Lian Yan；
The most each heat exchange fire seperating piece (11) and each heat exchange fin (13) are cast iron manufacture, form boiler
The main body of heat exchange, when the hot-air after fuel combustion rises through the inner chamber of heat exchanger fin, completes
Heat exchange with heat transfer medium；
8. boiler top cover (14), for square cast iron water jacket, it is 15 that its side towards the fire is cast with the size of space
The fin of millimeter, in order to increase heat exchange area, improves the thermal efficiency；
9. boiler body is intake by the return pipe (3) of boiler top cover (14), by boiler bottom water
Set (9) outlet pipe (7) place's water outlet, so, the hot circulating medium of boiler just with burn after
Thermal current, form the abundant exchange of contrary reverse flow, beneficially heat, improve heat
Efficiency, reduces exhaust gas temperature (existing exhaust gas temperature be 83 degree), has concurrently formed good cold
Solidifying effect, makes the discharge capacity of the nitrogen oxides of exhaust gas of discharge reach every cubic metre 43.125 milli
Gram.
Accompanying drawing illustrates:
Figure one boiler body assembles figure
Figure two interlayer water flowing set figure
Figure three combustor composition diagram
Detailed description of the invention:
Boiler bottom water jacket (9) is rectangle, and material is cast iron, common with burner (8)
The combustor of composition boiler, the ring inner surface of boiler bottom water jacket, it is designed with 45 degree
Inclined-plane, the combustion gas making the nozzle (8-01) of burner (8) spray bumps against shape behind 45 degree of inclined-planes
Become umbrella to scatter and be easy to Lian Yan, form good burning.
Burner (8), by burner nozzle (8-01), burner fixed plate (8-02), (8-04),
Fuel gas inlet pipe (8-03) forms, and burner is injecting type, and gaseous-pressure is middle pressure, natural
Air-breathing, without premix blower fan, jet orifice diameter is 0.4 millimeter.
Pressure injection, natural aspiration in using due to combustion gas so that the proportioning of combustion gas and air just arrives
Benefit, will not produce the suction of excess air, can ensure that combustion gas is burnt cmpletely, the most not
Flame can be caused to lower the temperature owing to there being the air of excess, thus improve the thermal efficiency of boiler.
Interlayer water flowing set (6), for short shape metallic cylinder, is the flowing water connecting each layer of boiler body
Passage, during installation, the two ends of interlayer water flowing set (6-02) add rubber seal (6-01) and
(6-03), after locking pull bar (5) is locked nut (4) applying pressure locking, can protect
When holding boiler operatiopn, each interlayer will not be subjected to displacement and seepage, adds the reliability of boiler operatiopn.
Heat exchange fire seperating piece (11) and heat exchange fin (13) are by cast iron manufacture, by one end interlayer
Water flowing set water inlet, by other end interlayer water flowing set (6-02) water outlet, is formed in a zigzag toward backflowing
Dynamic, the current length of every boiler intracavity is about 14 meters, has the heat exchange distance of abundance.
Boiler body is intake by the return pipe (3) of boiler top cover (14), by boiler bottom
Outlet pipe (7) place's water outlet of water jacket (9), so, the hot circulating medium of boiler just with burning
After thermal current form the abundant exchange of contrary reverse flow, beneficially heat, improve heat
Efficiency, reduces exhaust gas temperature (present exhaust gas temperature is 86 degree), has concurrently formed good
Condensation effect, make the discharge capacity of nitrogen oxides of exhaust gas reach 43.125 milligrams every cubic metre.
Claims (1)
1. one kind in the boiler industry " partly condensing low-nitrogen discharged gas-fired water heating boiler " including: expand water supply tank (1), logical air pipe (2), return pipe (3), locking nut (4) (15), locking pull bar (5) (12), interlayer water flowing set (6) (10), outlet pipe (7), burner (8), boiler bottom water jacket (9), heat exchange fire seperating piece (11), heat exchange fin (13), boiler top cover (14), chimney (16), smoke detectors mouth (17), it is characterised in that:
1.. described expansion moisturizing cabinet (1), for the rectangular structure do not closed, it is welded by the corrosion resistant plate of 0.8 mm of thickness, it is connected with boiler body together with it is mutual with logical air pipe (2) and return pipe (3), when the heat transfer medium in boiler body reduces, supplemented the medium expanded in moisturizing cabinet；
2.. locking nut (4) is mechanical type tensioning mechanism with locking pull bar (5), by the tension split ring on boiler bottom water jacket (9) and boiler top cover (14), each for boiler layer is strained locking up and down, prevents each layer of boiler to be subjected to displacement and interlayer adapter sleeve position occurs seepage；
3.. interlayer water flowing set (6), for short shape metallic cylinder, it it is the pipelined channel connecting each layer of boiler body, during installation, the two ends of interlayer water flowing set (6-02) add rubber seal (6-01) and (6-03), when locking pull bar (5) is locked after nut (4) applies pressure locking, and when can keep boiler operatiopn, each interlayer will not be subjected to displacement and seepage；
4.. outlet pipe (7) is the outlet of boiler heat-transfer medium, refutes into plate type heat exchanger or storage tank through circulating pump, carries out heat exchange or directly uses；
5.. burner (8), by burner nozzle (8-01), burner fixed plate (8-02), (8-04), fuel gas inlet pipe (8-03) forms, burner is injecting type, and gaseous-pressure is middle pressure, natural aspiration, without premix blower fan, nozzle bore is 0.4 millimeter；
6.. boiler bottom water jacket (9) is rectangle, material is cast iron, with the combustor that burner (8) collectively constitutes boiler, boiler bottom water jacket ring inner surface is designed with the inclined-plane of 45 degree, the combustion gas making the nozzle (8-01) of burner (8) spray forms umbrella after bumping against 45 degree of inclined-planes, it is simple to Lian Yan；
7.. each heat exchange fire seperating piece (11) and each heat exchange fin (13) they are cast iron manufacture, the main body of composition boiler heat exchange, when the hot-air after burning rises, through heat exchange fire seperating piece (11) and the inner chamber of heat exchange fin (13), complete the heat exchange with heat transfer medium；
8.. boiler top cover (14), for square cast iron water jacket, its side towards the fire is cast with the fin that the size of space is 15 millimeters, in order to increase heat exchange area, improves the thermal efficiency；
9.. boiler body is intake by the return pipe (3) of boiler top cover (14), by outlet pipe (7) water outlet of boiler bottom water jacket (9), so, the hot circulating medium of boiler just with its inner chamber fuel gas buring after thermal current, form contrary reverse flow, be conducive to the abundant exchange of heat, improve the thermal efficiency, reduce exhaust gas temperature (existing exhaust gas temperature is 83 degree), concurrently form good condensation effect, made the discharge capacity of the nitrogen oxides of exhaust gas of discharge reach 43.125 milligrams every cubic metre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401953.3A CN106322756A (en) | 2015-07-10 | 2015-07-10 | Semi-condensation low-nitrogen discharge gas-fired hot water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401953.3A CN106322756A (en) | 2015-07-10 | 2015-07-10 | Semi-condensation low-nitrogen discharge gas-fired hot water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106322756A true CN106322756A (en) | 2017-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510401953.3A Pending CN106322756A (en) | 2015-07-10 | 2015-07-10 | Semi-condensation low-nitrogen discharge gas-fired hot water boiler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488795A (en) * | 2018-05-21 | 2018-09-04 | 北京联众华禹环保科技有限公司 | A kind of porous nozzles and gas water jacket furnace low NO |
| CN110398057A (en) * | 2019-08-23 | 2019-11-01 | 江苏诺温特热能设备有限公司 | A kind of novel wall hanger console mode combustion gas condenses low nitrogen water heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201237346Y (en) * | 2008-03-18 | 2009-05-13 | 姜希申 | Gas/oil heat exchanger type water heating boiler |
| CN101701746A (en) * | 2009-11-20 | 2010-05-05 | 中国科学技术大学 | Small-sized efficient fuel gas/fuel oil boiler |
| CN102818363A (en) * | 2011-06-10 | 2012-12-12 | 夏君生 | Vertical efficient and energy saving (dual purpose) boiler |
| CN202902605U (en) * | 2012-11-22 | 2013-04-24 | 鞍山市嘉顺新能源科技有限公司 | Biomass fuel inverse combustion boiler |
| CN103175298A (en) * | 2013-04-18 | 2013-06-26 | 宋显明 | Energy-saving environment-friendly heating boiler |
-
2015
- 2015-07-10 CN CN201510401953.3A patent/CN106322756A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201237346Y (en) * | 2008-03-18 | 2009-05-13 | 姜希申 | Gas/oil heat exchanger type water heating boiler |
| CN101701746A (en) * | 2009-11-20 | 2010-05-05 | 中国科学技术大学 | Small-sized efficient fuel gas/fuel oil boiler |
| CN102818363A (en) * | 2011-06-10 | 2012-12-12 | 夏君生 | Vertical efficient and energy saving (dual purpose) boiler |
| CN202902605U (en) * | 2012-11-22 | 2013-04-24 | 鞍山市嘉顺新能源科技有限公司 | Biomass fuel inverse combustion boiler |
| CN103175298A (en) * | 2013-04-18 | 2013-06-26 | 宋显明 | Energy-saving environment-friendly heating boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488795A (en) * | 2018-05-21 | 2018-09-04 | 北京联众华禹环保科技有限公司 | A kind of porous nozzles and gas water jacket furnace low NO |
| CN110398057A (en) * | 2019-08-23 | 2019-11-01 | 江苏诺温特热能设备有限公司 | A kind of novel wall hanger console mode combustion gas condenses low nitrogen water heater |
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Application publication date: 20170111 |