CN201310879Y - Coal-burning and gas-burning dual-purpose boiler - Google Patents
Coal-burning and gas-burning dual-purpose boiler Download PDFInfo
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- CN201310879Y CN201310879Y CNU2008201672561U CN200820167256U CN201310879Y CN 201310879 Y CN201310879 Y CN 201310879Y CN U2008201672561 U CNU2008201672561 U CN U2008201672561U CN 200820167256 U CN200820167256 U CN 200820167256U CN 201310879 Y CN201310879 Y CN 201310879Y
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- fire grate
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- gas burner
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Abstract
A coal-burning and gas-burning dual-purpose boiler comprises a furnace body whose lower portion is provided with a fire grate, the lower side of the fire grate is connected with a pressure air pipe, a plurality of gas burners with gas nozzles, which are vertical to the upper plane of the fire grate and are arranged in a combustion chamber, are provided, and a device for regulating gas and air ratio is provided, and a plurality of gas burners are arranged on the fire grate along the longitudinal direction and the cross direction, the gas burners are connected with a gas supply pipe with a gas switch, and a detachable pipe joint is arranged between the gas burners, the front wall of the furnace body is provided with an igniter which can front and back telescope, and when gas is adopted to be fuel, the igniter can extend into the combustion chamber to ignite from the front wall of the furnace wall. The dual-purpose boiler for burning coal and gas has the advantages that the dual-purpose boiler for burning coal and gas can remodel existing coal-burning boilers, does not need to change the original structure, and has convenient on-spot reconstruction and low production cost, a vertically-mounted gas burner is adopted to avoid flames of the nozzle from lengthening and flushing the furnace wall, which has even heat load distribution, and can quickly respond the variation of boiler load, thereby improving the energy source utilization ratio, and simultaneously lowering the discharge of NOX.
Description
Technical field
The utility model relates to a kind of Industrial Boiler field, specifically refer to a kind of not only can be coal-fired but also the coal-gas burning dual-purpose boiler of combustible gas; It is suitable especially to be applied to transform existing machinery formula coal-burning boiler, and need not change original structure when transforming, and its original coal-fired ability can be kept intact and keep to mechanical type coal-burning boiler promptly to be transformed.
Background technology
The structure of prior mechanical coal-burning boiler includes fire grate and the coal supply apparatus in body of heater and the body of heater, and this fire grate comprises sliding grate, dumping-grate, inclined grate, chain furnace grate etc. again by the structure difference.The prior mechanical coal-burning boiler is to adopt described coal supply apparatus to deliver to coal or other waste combustible materials matter on the described fire grate and carry out ignition, to produce heat energy.
Yet when above-mentioned mechanical type coal-burning boiler moved, thermic load was difficult to be evenly distributed in described body of heater, and the balance quality of regulating between its radiation and convection heating surface is relatively poor, is difficult to control the over-emitting black exhaust phenomenon simultaneously, thereby formed NO
XExcessive emissions; Next is the variation that is difficult to respond fast described boiler load, and its load adjustment ability is lower; The difficulty of manual operation and automation control is bigger again.
Since above weak point, thereby the energy utilization rate of existing machinery formula coal-burning boiler is relatively poor, and economic benefit is lower again; Especially NO
XExcessive emissions cause pollution to surrounding environment.
The utility model content
Technical problem to be solved in the utility model is the situation at prior art, provide a kind of not only can fire coal but also combustible gas, can improve energy utilization rate simultaneously and reduce NO
XThe coal-gas burning dual-purpose boiler of discharge capacity.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of coal-gas burning dual-purpose boiler, the body of heater that comprises a band antetheca and rear wall, this body of heater bottom also is provided with fire grate between described antetheca and described rear wall, this fire grate top is provided with the combustion chamber, this fire grate downside is connected with the pressure air air supply duct, it is characterized in that: perpendicular to plane on the described fire grate and be positioned at the gas burner that described combustion chamber regions is provided with a plurality of band gas nozzles, this gas burner below is connected with described pressure air air supply duct; Described gas burner is provided with the device of adjustable fuel gas and air ratio.
The utility model is owing to adopt coal-fired and combustion gas two covering devices, and is provided with the gas burner of perpendicular nozzle, thereby but realized the boiler for dual purpose of using gases or two kinds of fuel of solid; When using gases fuel, its heat load distribution is even again, can respond the variation of described boiler load fast, and its load adjustment ability is more excellent; Thereby can improve energy utilization rate, also can reduce NO simultaneously
XDischarge capacity.
Described a plurality of gas burner can be fixedly arranged on the described fire grate, and longitudinally arranges with horizontal array perpendicular to the last plane of described fire grate.This gas burner can realize that along the multiple arranged in arrays of longitudinal and transverse direction flexile fire falls into form, thus reach heat load distribution in the body of heater evenly, the balance quality regulated between its radiation and convection heating surface is preferable; The thermic load of single gas burner is lower again, stops the formation of hot vortex region in the flame to greatest extent than low heat loads, to reduce because the NO that this hot vortex region produces
X
Described gas burner can be connected with the gas supply pipe of band burnt gas switch.
Can be provided with the pipe joint that is used to dismantle described gas burner between described gas supply pipe and the described gas burner.Be connected by tube connector between described pipe joint and the described gas burner.Its effect is: one, when employing is the boiler operatiopn mode of fuel with the combustion gas, open burnt gas switch, and gas supply pipe is communicated with gas burner; Can realize with the work of the gas fired-boiler method of operation; Its two, when adopting, close burnt gas switch with the coal-burning boiler method of operation; And remove gas burner by this pipe joint from fire grate, can realize adding the method for operation of coal burning boiler with mechanical type.
This tube connector is provided with the gaseous-pressure table, with the running parameter of control combustion gas.
Described body of heater antetheca can be provided with igniter, and this igniter is vertical and be close to the nozzle end of described gas burner, and this igniter can be flexible at the fore-and-aft direction of described body of heater antetheca.The igniter effect is that described gas burner is carried out ignition, produces heat energy.When adopting the coal-burning boiler mode to move, this igniter shrinks in the body of heater antetheca, does not participate in ignition operation.
The utility model is owing to set up a cover gas combustion apparatus on the structure of prior mechanical coal-burning boiler, compared with prior art, its advantage is: 1, can transform existing coal-burning boiler, and existing coal-burning boiler need not change original structure, on-the-spot transform convenient, improvement cost is cheap; 2, original coal-burning boiler air-supply arrangement can be utilized, also original boiler tube needn't be changed; Also needn't remove original mechanical type coal supply apparatus during transformation, allow mechanical type to be transformed to add coal burning boiler and keep intact, and keep the coal-fired ability that this mechanical type adds coal burning boiler, can in very short time, make boiler burn coal again; 3, adopt the vertical gas burner that gas nozzle is installed, its heat load distribution is even, can respond the variation of described boiler load fast, and its load adjustment ability is more excellent; Compare the drawback that to avoid gas nozzle flame to elongate and wash away the furnace wall with the gas burner of level installation gas nozzle again; Thereby can improve energy utilization rate, also can reduce NO simultaneously
XDischarge capacity.
Description of drawings
Fig. 1 is the utility model topology layout schematic diagram;
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of coal-gas burning dual-purpose boiler comprises that one has the body of heater 1 of antetheca 11 and rear wall 12, and this body of heater bottom also is provided with fire grate 2 between antetheca and rear wall, and this fire grate top is provided with combustion chamber 3; These fire grate 2 downsides are connected with forced-draft pipeline 5.
Be positioned at body of heater antetheca side and be provided with feeding system 15 above fire grate 2, this feeding system 15 is delivered to coal or other waste combustible materials matter on the described fire grate 2, and carries out ignition, to produce heat energy.
Be positioned at front side, fire grate 2 below and be provided with ashpit 16.Ashpit 16 can be arranged on below the operation terrace 17.
Perpendicular to plane 21 on the fire grate 2 and be positioned at the gas burner 4 that 3 zones, combustion chamber are provided with a plurality of band gas nozzles, these gas burner 4 belows are connected with forced-draft pipeline 5; Adopt the gas nozzle of vertical combustion, can avoid the drawback of elongating and washing away the furnace wall as the gas nozzle flame that is parallel to fire grate.
Gas burner 4 is provided with the adjusting device of combustion gas and air ratio, and the air-fuel ratio of each gas burner 4 can accurately be adjusted.This combustion gas can be natural gas, propane, town gas, coke-stove gas or other fuel gas.
The quantity of a plurality of gas burners 4 and the specification of burning line thereof can be according to the position of the form of the capacity of described boiler, fire grate and body of heater and absolute altitudes and are decided.
Under fire grate 2, be provided with V font body of heater plenum chamber 51, this plenum chamber 51 is communicated with forced-draft pipeline 5, and this plenum chamber 51 plays the pressure stabilizing chamber effect, makes gas burner 4 effectively move under stable blast pressure.
A plurality of gas burners 4 are along gridding arranged on the longitudinal and transverse direction on plane 21 on the fire grate 2; This gas burner can realize that along the multiple arranged in arrays of longitudinal and transverse direction flexile fire falls into 22 forms; Referring to shown in Figure 1; Its function is that the heat release pattern is adjusted easily, and the whole heating surface of boiler all can effectively utilize; Thereby it is even to reach in the body of heater heat load distribution; Single again gas burner can reduce the formation and the consequent NO of hot vortex region in the flame than low heat loads
X, the discharging of control black smoke.
Gas burner 4 is connected with the gas supply pipe 6 of band burnt gas switch 7; Be provided with the pipe joint 8 that is used for divided gas flow burner 4 between this gas supply pipe and the gas burner 4.Combustion gas is communicated with gas burner 4 by supply pipe 6; Pipe joint 8 is connected by tube connector 9 again with between the gas burner 4.
When the utility model is the boiler operatiopn mode of fuel when employing with the combustion gas, open burnt gas switch 7, gas supply pipe is communicated with gas burner 4; Can realize with the work of the gas fired-boiler method of operation; When adopting with the coal-burning boiler method of operation, close burnt gas switch 7, and remove gas burner 4 from fire grate by pipe joint 8, can realize adding the coal-fired ability of coal burning boiler with mechanical type, can in very short time, make boiler burn coal again.
This tube connector 9 is provided with gaseous-pressure table 13, with the running parameter of control combustion gas.
Be provided with telescopic igniter 10 perpendicular to gas burner 4 nozzle end, a side that is positioned body of heater antetheca 11 of this telescopic igniter; As shown in Figure 1.When employing was the boiler operatiopn mode of fuel with the combustion gas, igniter 10 stretched out in the combustion chamber 3 from the body of heater antetheca, and carried out ignition and produce heat energy.When employing was the boiler operatiopn mode of fuel with the fire coal, 10 of igniters shrank in body of heater antetheca 11, do not participate in ignition operation.
The utility model is provided with gas burner 4 on the fire grate of coal-burning boiler purpose is to realize the ability of fire coal or the two or more fuel of combustion gas, thereby forms a kind of fire coal or gas two-purpose boiler of high thermal efficiency; The diversity and the flexibility of boiler use different fuel have been widened.
The utility model can improve energy utilization rate, and reduces NO
XDischarge capacity and reduce pollution to environment.It especially is suitable for transforming the existing coal burning boiler that adds, and on-the-spot transformation is convenient, improvement cost is cheap; Also needn't remove original mechanical type coal supply apparatus during transformation, and keep its coal-fired ability.
Claims (6)
1, a kind of coal-gas burning dual-purpose boiler, the body of heater (1) that comprises a band antetheca (11) and rear wall (12), this body of heater (1) bottom is provided with fire grate (2), this fire grate (2) top is provided with combustion chamber (3), this fire grate (2) downside is connected with pressure air air supply duct (5), it is characterized in that: go up plane (21) and be positioned at the gas burner (4) that zone, described combustion chamber (3) is provided with a plurality of band gas nozzles perpendicular to described fire grate (2), this gas burner (4) below is connected with described pressure air air supply duct (5); Described gas burner (4) is provided with the device of adjustable fuel gas and air ratio.
2, coal-gas burning dual-purpose boiler according to claim 1 is characterized in that: described a plurality of gas burners (4) are fixedly arranged on described fire grate (2) and go up and longitudinally arrange with horizontal array perpendicular to the last plane (21) of described fire grate (2).
3, coal-gas burning dual-purpose boiler according to claim 2 is characterized in that: described gas burner (4) is connected with the gas supply pipe (6) of band burnt gas switch (7).
4, coal-gas burning dual-purpose boiler according to claim 3 is characterized in that: be provided with the pipe joint (8) that is used to dismantle described gas burner (4) between described gas supply pipe (6) and the described gas burner (4).
5, coal-gas burning dual-purpose boiler according to claim 4 is characterized in that: be connected by tube connector (9) between described pipe joint (8) and the described gas burner (4); This tube connector (9) is provided with gaseous-pressure table (13).
6, coal-gas burning dual-purpose boiler according to claim 1, it is characterized in that: described body of heater antetheca (11) is provided with igniter (10), this igniter (10) is vertical and be close to the nozzle end of described gas burner (4), and this igniter (10) can be flexible at the fore-and-aft direction of described body of heater antetheca (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201672561U CN201310879Y (en) | 2008-10-31 | 2008-10-31 | Coal-burning and gas-burning dual-purpose boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201672561U CN201310879Y (en) | 2008-10-31 | 2008-10-31 | Coal-burning and gas-burning dual-purpose boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201310879Y true CN201310879Y (en) | 2009-09-16 |
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ID=41108131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201672561U Expired - Fee Related CN201310879Y (en) | 2008-10-31 | 2008-10-31 | Coal-burning and gas-burning dual-purpose boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN201310879Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705812A (en) * | 2012-02-03 | 2012-10-03 | 常熟市华技锅炉制造有限公司 | Energy-saving and environment-friendly biomass boiler |
| CN104197316A (en) * | 2014-09-11 | 2014-12-10 | 衡阳衡锅锅炉有限公司 | Gas-solid dual-fuel boiler |
| CN107631472A (en) * | 2017-09-14 | 2018-01-26 | 芜湖市通达锅炉有限公司 | A kind of dual purpose steam water boiler utilizes device with useless cigarette |
| CN108954296A (en) * | 2018-05-31 | 2018-12-07 | 呼伦贝尔市特种设备检验所 | A kind of coal-gas burning dual-purpose boiler |
| CN109028036A (en) * | 2018-08-01 | 2018-12-18 | 六安市智奇工业设计有限公司 | A kind of environment-friendly type combustion furnace |
| CN109611884A (en) * | 2018-10-31 | 2019-04-12 | 广东全过程工程咨询有限公司 | A kind of closed coal burning room of coal-fired plant's fire coal with purification function |
-
2008
- 2008-10-31 CN CNU2008201672561U patent/CN201310879Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705812A (en) * | 2012-02-03 | 2012-10-03 | 常熟市华技锅炉制造有限公司 | Energy-saving and environment-friendly biomass boiler |
| CN104197316A (en) * | 2014-09-11 | 2014-12-10 | 衡阳衡锅锅炉有限公司 | Gas-solid dual-fuel boiler |
| CN107631472A (en) * | 2017-09-14 | 2018-01-26 | 芜湖市通达锅炉有限公司 | A kind of dual purpose steam water boiler utilizes device with useless cigarette |
| CN108954296A (en) * | 2018-05-31 | 2018-12-07 | 呼伦贝尔市特种设备检验所 | A kind of coal-gas burning dual-purpose boiler |
| CN109028036A (en) * | 2018-08-01 | 2018-12-18 | 六安市智奇工业设计有限公司 | A kind of environment-friendly type combustion furnace |
| CN109611884A (en) * | 2018-10-31 | 2019-04-12 | 广东全过程工程咨询有限公司 | A kind of closed coal burning room of coal-fired plant's fire coal with purification function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20151031 |
|
| EXPY | Termination of patent right or utility model |