CN205957156U - Hot water boiler - Google Patents
Hot water boiler Download PDFInfo
- Publication number
- CN205957156U CN205957156U CN201620901890.8U CN201620901890U CN205957156U CN 205957156 U CN205957156 U CN 205957156U CN 201620901890 U CN201620901890 U CN 201620901890U CN 205957156 U CN205957156 U CN 205957156U
- Authority
- CN
- China
- Prior art keywords
- flue
- hot
- boiler body
- flue gas
- water boiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a hot water boiler, including boiler body, be provided with the combustion chamber in the boiler body lower part, the combustion chamber outside is provided with the combustor, boiler body's upper end is provided with the flue, the flue is connected with the flue gas recirculation pipeline, the flue gas recirculation pipeline other end is connected to the air intake of combustor, the exhanst gas outlet of combustion chamber sets up to snakelike, until reacing the flue. Hot water boiler's use, recirculated flue gas can effectively reduce furnace temperature, can reduce the oxygen concentration in flue gas and the air mixing thing simultaneously, is favorable to reducing heating power high temperature modification NOx's formation, has also reduced the reaction of intermediate nitrogen -containing group and oxygen in addition, consequently also is favorable to reducing fuel type NOx's formation. The effect that reduces NOx is obvious.
Description
Technical field
The utility model is related to a kind of boiler, especially a kind of hot-water boiler.
Background technology
In fuel oil, combustion gas and process of coal combustion, the generation of NOx is a part for combustion reaction.Burning generates
Nitrogen oxides is mainly NO and NO2, is referred to as NOx.NOx in air is dissolved in water and can form nitric acid rain, infringement trees and farming
Thing；NOx is also easily combined with the hemochrome in human body and animal blood, causes blood anoxic to cause nervous centralis to benumb, directly
Infringement health；In addition NOx is also easy to cause photochemical fog and haze, has a strong impact on environment and infringement human health.
Therefore, environmental law requires to control NOx emission increasingly stringent.Air administering method is broadly divided into two classes at present：One class
It is low NOx combusting technology, control NOx generation amount in combustion；Another kind of is fume treatment technology, reduces in flue gas
NOx generation amount.Though latter class method effect is significant expensive, the popularization for Industrial Boiler field is unrealistic.
Utility model content
The utility model provides a kind of hot-water boiler, by the burn cycle of pot inner flue gas of the stove, solves the generation of NOx
Measure too high problem, its technical scheme is as described below：
A kind of hot-water boiler, including boiler body, arranges combuster in boiler body bottom, sets outside described combustion chamber
It is equipped with combustor, the upper end of described boiler body is provided with flue, described flue is connected with flue gas recirculation pipeline, described flue gas follows
The endless tube road other end is connected to the air inlet of combustor, and the exhanst gas outlet of described combustion chamber is set to snakelike, until it reaches flue.
Described combustion chamber is waveform, for reducing the stress of thermal expansion generation.
Described boiler body is provided with water level alarm and water-level gauge.
It is provided with staircase and base outside described boiler body.
Described boiler body top is provided with safety valve, main steam mouth, secondary steam port, pressure gauge and pressure controller.
Described boiler body is provided with blowdown interface.
It is provided with expansion joint in described flue gas recirculation pipeline.
Described flue is provided with draining valve and condensate pipe.
The use of described hot-water boiler, circulating flue gas can effectively reduce in-furnace temperature, can reduce flue gas simultaneously and air mixes
Oxygen concentration in compound, advantageously reduces the generation of heating power high temperature modification NOx, in addition decreases intermediate product nitrogen-containing group and oxygen
The reaction of gas, is therefore also beneficial to reduce the generation of fuel type NOx.The effect reducing NOx is obvious.
Brief description
Fig. 1 is the structural representation of described hot-water boiler；
Fig. 2 is the side schematic view of described hot-water boiler；
Fig. 3 is the schematic diagram of the circulating flue gas of described hot-water boiler.
Specific embodiment
As shown in Fig. 1 to Fig. 3, described hot-water boiler includes boiler body 16, arranges combuster in boiler body bottom,
It is provided with combustor 1 and power distribution cabinet 2, the upper end of described boiler body 16 is provided with flue 12, described cigarette outside described combustion chamber
Road 12 is connected with flue gas recirculation pipeline 15, and described flue gas recirculation pipeline 15 other end is connected to the air inlet of combustor 1, described combustion
The exhanst gas outlet of burning room is set to snakelike, until it reaches flue.Described combustion chamber is waveform, for reducing answering of thermal expansion generation
Power.It is provided with expansion joint in described flue gas recirculation pipeline 15.
Described boiler body 16 is provided with water level alarm 5, water-level gauge 6 and feedwater interface 11, and top is provided with safety valve
7th, main steam mouth 8, secondary steam port 9, pressure gauge 13 and pressure controller 14, outside is provided with staircase 3 and base 4.
Further, described boiler body is provided with blowdown interface 10.
Described flue is provided with draining valve 17 and condensate pipe 18.
Low-temperature flue gas in boiler flue are returned directly in burner and combustion air mixing, because the heat absorption of flue gas
And dilute oxygen concentration, so that mean temperature in burning velocity and stove is reduced, thus reducing the generation of NOx.The effect reducing NOx is bright
Aobvious.
Claims (8)
1. a kind of hot-water boiler it is characterised in that：Including boiler body, combuster, described combustion are set in boiler body bottom
Burn outdoor and be provided with combustor, the upper end of described boiler body is provided with flue, and described flue is connected with flue gas recirculation pipeline,
The described flue gas recirculation pipeline other end is connected to the air inlet of combustor, and the exhanst gas outlet of described combustion chamber is set to snakelike, directly
To arrival flue.
2. hot-water boiler according to claim 1 it is characterised in that：Described combustion chamber is waveform, for reducing thermal expansion
The stress producing.
3. hot-water boiler according to claim 1 it is characterised in that：Described boiler body is provided with water level alarm and water
Position meter.
4. hot-water boiler according to claim 1 it is characterised in that：It is provided with staircase and bottom outside described boiler body
Seat.
5. hot-water boiler according to claim 1 it is characterised in that：Described boiler body top is provided with safety valve, master
Steam port, secondary steam port, pressure gauge and pressure controller.
6. hot-water boiler according to claim 1 it is characterised in that：Described boiler body is provided with blowdown interface.
7. hot-water boiler according to claim 1 it is characterised in that：It is provided with expansion joint in described flue gas recirculation pipeline.
8. hot-water boiler according to claim 1 it is characterised in that：Described flue is provided with draining valve and condensate pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620901890.8U CN205957156U (en) | 2016-08-18 | 2016-08-18 | Hot water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620901890.8U CN205957156U (en) | 2016-08-18 | 2016-08-18 | Hot water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205957156U true CN205957156U (en) | 2017-02-15 |
Family
ID=57976355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620901890.8U Expired - Fee Related CN205957156U (en) | 2016-08-18 | 2016-08-18 | Hot water boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205957156U (en) |
-
2016
- 2016-08-18 CN CN201620901890.8U patent/CN205957156U/en not_active Expired - Fee Related
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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: 20170215 Termination date: 20210818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |