CN203190629U - Horizontal-type thermal medium boiler - Google Patents
Horizontal-type thermal medium boiler Download PDFInfo
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- CN203190629U CN203190629U CN 201320107628 CN201320107628U CN203190629U CN 203190629 U CN203190629 U CN 203190629U CN 201320107628 CN201320107628 CN 201320107628 CN 201320107628 U CN201320107628 U CN 201320107628U CN 203190629 U CN203190629 U CN 203190629U
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- boiler
- convection pass
- economizer
- burner hearth
- water screen
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Abstract
The utility model discloses a boiler for coal combustion, and particularly discloses a horizontal-type thermal medium boiler which comprises a combustion chamber and a convection pass. The combustion chamber and the convection pass are separated by a partition wall, and the upper portion of the combustion chamber and the upper portion of the convection pass are communicated. A pulverized coal burner is arranged on the front wall of the combustion chamber. The combustion chamber and the convection pass are respectively provided with a plurality of water wall tubes arranged in a coiled mode. Heat-transfer media inside the water wall tubes are high-temperature heat-conducting oil. A coal economizer is arranged inside the convection pass. The water wall tubes are communicated with the coal economizer. A smoke exhaust port is formed in the rear wall of the convection pass. Flame generated after pulverized coal is combusted is diffused from front to back inside the combustion chamber. After heat transfer is carried out between the flame and the heating surfaces of the water wall tubes, the flame enters the convection pass. Due to the facts that the flame generated after pulverized coal is combusted is diffused from front to back inside the combustion chamber, enters the convection pass from the combustion pass after the heat transfer is carried out between the flame and the heating surfaces of the water wall tubes, and is exhausted out of the boiler from the smoke exhaust port after the coal economizer is washed out downwards, efficient, low-temperature and clean combustion can be achieved, generation of black smoke is reduced, and finally the thermal efficiency of the coal-fired boiler is improved.
Description
Technical field
The utility model relates to a kind of coal combustion boiler, particularly relates to a kind of horizontal thermal medium boiler.
Background technology
Thermal medium boiler is a kind of novel, safe, energy-efficient, and low pressure (under the normal pressure or lower pressure) also can provide the extraordinary Industrial Boiler of high temperature heat.Be heat carrier with the conduction oil, can under lower operating pressure, obtain higher operating temperature, utilize oil circulating pump to make conduction oil forced flow in pot, heat energy is flowed to behind the hot equipment. return the extraordinary Industrial Boiler of the single flow that reheats then, so go round and begin again, realize the continuous transmission of heat, the heating object temperature is raise, reach the technological requirement of heating.Be widely used in as petrochemical industry, weaving, printing and dyeing, plastics, rubber, food processing, timber processing, pitch heating, carton production, dewatering vegetable, baking vanish, the oven dry of casting sand mo(u)ld, also can be used for≤350 ℃ bake, evaporate, finalize the design, dissolve, industry such as drying, be a kind of novel desirable heating equipment.
Coal dust firing is one of high performance clean burning mode of the coal of generally acknowledging, and its efficiency of combustion can reach more than 95%～99% usually, is that other combustion system institute is unapproachable.Pulverized coal combustion also is the combustion technology of a maturation, use quite general at large-sized station boiler, and long-term history arranged, just because the limitation of economic development and science and technology, be subjected to cost height, uncontrollable atmosphere pollution initial ejection concentration and pollute the restriction of aspects such as the thing discharging is serious, make this clean burning technology on the low capacity boiler, not obtain good application for a long time.Along with becoming fundamental state policy, energy-conserving and environment-protective also are rooted in the hearts of the people day by day, while is along with the development of combustion technology and green technology, restricted the coal dust firing mode in the past and also be resolved at the technical barrier of Industrial Boiler and the application of industrial heating field, be greatly developed in recent years thereby make this efficient energy-saving clean burning technology of coal dust firing in the research and development in Industrial Boiler and industrial heating field and use.
Thermal medium boiler belongs to the special boiler of low capacity, uses pulverized coal combustion at thermal medium boiler, can realize low energy consumption, low emission, fuel package oil scraper, gas and coal that existing coal burning heat medium boiler is used.Along with energy prices are constantly soaring, the expense that oil and natural gas acts as a fuel makes most of industrial enterprise be difficult to bear.And existing coal burning heat medium boiler mostly to be with the raw coal be the grate firing boiler of fuel.Directly the shortcoming of burning raw coal mainly contains two: the one, and efficient is low, and using energy source is insufficient, and general chain fire-gate average operating efficiency has only about 65%; The 2nd, boiler Air Pollutant Emission amount is bigger, is difficult to reach the requirement of country and local discharge standard.
The utility model content
Horizontal thermal medium boiler of the present utility model, overcome the deficiency that prior art exists, providing a kind of is fuel with the coal dust, realize efficient, low temperature, clean burning, in stove, suppress oxysulfide, nitrogen oxide formation, reduce black smoke and produce, and handle by flue gas, control boiler pollutant discharging finally makes the coal-burning boiler thermal efficiency, pollutant emission near the level of oil-burning gas-fired boiler.
Horizontal thermal medium boiler of the present utility model, described boiler is horizontal boiler, comprise burner hearth and convection pass, separate by partition wall between described burner hearth and the convection pass and top is communicated with, the front wall of described burner hearth is provided with coal burner, be provided with the water screen tube that many coilings arrange in described burner hearth and the described convection pass, heat transfer medium in the described water screen tube is high temperature heat conductive oil, be provided with economizer in the described convection pass, many described water screen tubes are communicated with described economizer by economizer exit collection case, the Hou Qiang top of described convection pass is provided with exhaust opening, the flame that produces behind the coal dust firing is then propagated from preceding in described burner hearth, with enter convection pass by wall top behind the burner hearth after the heat exchange of water screen tube heating surface, wash away downwards behind the economizer outside exhaust opening is discharged boiler; Water screen tube and economizer all adopt the forced flow mode like this, make the conduction oil in the boiler obtain higher flow velocity, guarantee the boiler safety reliably working, avoid that the water screen tube temperature is too high to cause damage, forced flow can be arranged water screen tube arbitrarily in the boiler simultaneously, be not subjected to the necessary rising of Natural Circulation, the upright restriction of arranging of down-comer, satisfy the requirement on the boiler structure easily, can realize efficient, low temperature, clean burning, in stove, suppress oxysulfide, nitrogen oxide forms, and reduces black smoke and produces, and handle by flue gas, the discharging of control boiler pollutant finally makes the coal-burning boiler thermal efficiency, pollutant emission is near the level of oil-burning gas-fired boiler.
The side wall of described burner hearth and burner hearth top all are furnished with water screen tube, all be furnished with water screen tube on the bag wall of the convection pass around the described economizer, water screen tube can be arranged in water screen tube on the hearth wall that needs to arrange effectively, satisfies the requirement of boiler heat-transfer and security.
Described water screen tube is n shape and arranges.
Described burner hearth bottom is provided with ashcan, is used for collecting the ash that falls after burner hearth burns.
Described convection pass bottom is provided with ashcan, is used for collecting the ash that falls after convection pass burns.
Described economizer is snakelike economizer.
Compared with prior art the beneficial effects of the utility model are: because the flame that produces behind the coal dust firing is then propagated from preceding in described burner hearth, with enter convection pass by wall top behind the burner hearth after the heat exchange of water screen tube heating surface, wash away downwards behind the economizer from exhaust opening and discharge the outer such water screen tube of boiler and economizer all adopts the forced flow mode, make the conduction oil in the boiler obtain higher flow velocity, guarantee the boiler safety reliably working, avoid that the water screen tube temperature is too high to cause damage, forced flow can be arranged water screen tube arbitrarily in the boiler simultaneously, be not subjected to the necessary rising of Natural Circulation, the upright restriction of arranging of down-comer, satisfy the requirement on the boiler structure easily, can realize efficient, low temperature, clean burning, in stove, suppress oxysulfide, nitrogen oxide forms, reducing black smoke produces, and handle by flue gas, the discharging of control boiler pollutant finally makes the coal-burning boiler thermal efficiency, pollutant emission is near the level of oil-burning gas-fired boiler.
Description of drawings
Fig. 1 is the structural representation of the horizontal thermal medium boiler of the utility model.
Fig. 2 is the horizontal thermal medium boiler medium of the utility model schematic flow sheet.
Fig. 3 is the horizontal thermal medium boiler water screen tube of the utility model structural representation.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
As Fig. 1-shown in Figure 3, a kind of horizontal thermal medium boiler, boiler is horizontal boiler, comprise burner hearth 1 and convection pass 2, separate by partition wall 3 between burner hearth 1 and the convection pass 2 and top is communicated with, the front wall of burner hearth 1 is provided with coal burner 4, be provided with the water screen tubes 5 that many coilings arrange in burner hearth 1 and the convection pass 2, heat transfer medium in the water screen tube 5 is high temperature heat conductive oil, be provided with economizer 6 in the convection pass 2, many water screen tubes 5 are communicated with economizer 6 by economizer exit collection case 11, the Hou Qiang top of convection pass 2 is provided with exhaust opening 7, and the flame that produces behind the coal dust firing is then propagated from preceding in burner hearth 1, and enters convection pass 2 by wall top, burner hearth 1 back after the water screen tube 5 heating surface heat exchange, washing away economizer 6 backs downwards discharges outside the boiler from exhaust opening 7, enter the air preheater heat exchange, burner hearth 1 bottom is provided with first ashcan 8, is used for collecting the ash that falls after burner hearth 1 burns, convection pass 2 bottoms are provided with second ashcan 9, are used for collecting the ash that falls after convection pass 2 burns.
The side wall of burner hearth 1 and burner hearth 1 push up on the bag wall that all is furnished with water screen tube 5 and economizer convection pass 2 all around and all are furnished with water screen tube 5, water screen tube 5 is n shape and arranges, water screen tube 5 can be arranged in water screen tube 5 on burner hearth 1 wall that needs to arrange effectively, water screen tube 5 one ends collect case 10 to heating system by the water screen tube outlet, the other end of water screen tube 5 is communicated with economizer 6 by economizer exit collection case 11, two snakelike economizers that economizer 6 arranges for series connection, economizer 6 is communicated with heat conductive oil inlet by economizer inlet header case 12, and heat conductive oil inlet is communicated with oil pump by pipeline.
The utility model embodiment is fuel with the coal dust, realize efficient, low temperature, clean burning, in stove, suppress oxysulfide, nitrogen oxide forms, reducing black smoke produces, and handle by flue gas, the discharging of control boiler pollutant, finally make the coal-burning boiler thermal efficiency, pollutant emission is near the level of oil-burning gas-fired boiler, because the flame that produces behind the coal dust firing is then propagated from preceding in burner hearth 1, with enter convection pass 2 by walls top, burner hearth 5 back after the water screen tube 5 heating surface heat exchange, washing away economizer 6 backs downwards discharges outside the boiler from exhaust opening 7, water screen tube 5 and economizer 6 all adopt the forced flow mode like this, make the conduction oil in the boiler obtain higher flow velocity, guarantee the boiler safety reliably working, avoid that water screen tube 5 temperature are too high to cause damage, forced flow can be arranged water screen tube 5 arbitrarily in the boiler simultaneously, be not subjected to the necessary rising of Natural Circulation, the upright restriction of arranging of down-comer, satisfy the requirement on the boiler structure easily, can realize efficient, low temperature, clean burning, in stove, suppress oxysulfide, nitrogen oxide forms, reducing black smoke produces, and handle by flue gas, the discharging of control boiler pollutant finally makes the coal-burning boiler thermal efficiency, pollutant emission is near the level of oil-burning gas-fired boiler.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.
Claims (7)
1. horizontal thermal medium boiler, described boiler is horizontal boiler, it is characterized in that: comprise burner hearth and convection pass, separate by partition wall between described burner hearth and the convection pass and top is communicated with, the front wall of described burner hearth is provided with coal burner, be provided with the water screen tube that many coilings arrange in described burner hearth and the described convection pass, heat transfer medium in the described water screen tube is high temperature heat conductive oil, be provided with economizer in the described convection pass, many described water screen tubes are communicated with described economizer by economizer exit collection case, the Hou Qiang top of described convection pass is provided with exhaust opening, the flame that produces behind the coal dust firing is then propagated from preceding in described burner hearth, with enter convection pass by wall top behind the burner hearth after the heat exchange of water screen tube heating surface, wash away downwards behind the economizer outside exhaust opening is discharged boiler.
2. horizontal thermal medium boiler as claimed in claim 1 is characterized in that: the side wall of described burner hearth and burner hearth top all are furnished with water screen tube.
3. horizontal thermal medium boiler as claimed in claim 1 is characterized in that: all be furnished with water screen tube on the bag wall of the convection pass around the described economizer.
4. as claim 2 or 3 described horizontal thermal medium boilers, it is characterized in that: described water screen tube is n shape and arranges.
5. horizontal thermal medium boiler as claimed in claim 4, it is characterized in that: described burner hearth bottom is provided with ashcan.
6. horizontal thermal medium boiler as claimed in claim 5 is characterized in that: be provided with ashcan bottom the described convection pass.
7. horizontal thermal medium boiler as claimed in claim 6, it is characterized in that: described economizer is snakelike economizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107628 CN203190629U (en) | 2013-03-11 | 2013-03-11 | Horizontal-type thermal medium boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107628 CN203190629U (en) | 2013-03-11 | 2013-03-11 | Horizontal-type thermal medium boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203190629U true CN203190629U (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320107628 Expired - Fee Related CN203190629U (en) | 2013-03-11 | 2013-03-11 | Horizontal-type thermal medium boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203190629U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822357A (en) * | 2014-03-21 | 2014-05-28 | 浙江锅炉有限公司 | Horizontal pulverized coal organic heat carrier boiler |
| CN111121006A (en) * | 2018-11-01 | 2020-05-08 | 中国科学院工程热物理研究所 | Horizontal pulverized coal boiler and control method thereof |
-
2013
- 2013-03-11 CN CN 201320107628 patent/CN203190629U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822357A (en) * | 2014-03-21 | 2014-05-28 | 浙江锅炉有限公司 | Horizontal pulverized coal organic heat carrier boiler |
| CN111121006A (en) * | 2018-11-01 | 2020-05-08 | 中国科学院工程热物理研究所 | Horizontal pulverized coal boiler and control method thereof |
| CN111121006B (en) * | 2018-11-01 | 2021-03-26 | 中国科学院工程热物理研究所 | Horizontal pulverized coal boiler and its control method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20160311 |