CN216431674U - Hearth of SZS-fired natural gas steam boiler - Google Patents
Hearth of SZS-fired natural gas steam boiler Download PDFInfo
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- CN216431674U CN216431674U CN202122576246.1U CN202122576246U CN216431674U CN 216431674 U CN216431674 U CN 216431674U CN 202122576246 U CN202122576246 U CN 202122576246U CN 216431674 U CN216431674 U CN 216431674U
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Abstract
The utility model discloses a furnace of SZS fires natural gas steam boiler, including furnace, concrete, the cotton felt of glass and water-cooling wall, the furnace inner wall is provided with the water-cooling wall, and the outside of water-cooling wall is provided with the cotton felt of glass, the up end of the first half section of water-cooling wall is provided with the concrete, the water-cooling wall has the water-cooling tube unit combination of a plurality of mutual cuttage to form, and the bottom water-cooling wall is the slope form. This SZS fires natural gas steam boiler's furnace simple manufacture, the cost is lower, the main radiation zone in furnace bottom does not pour the concrete, reinforce the heat transfer, reduce the furnace temperature, less nitrogen oxide's formation can increase the furnace diameter simultaneously, increase and combustor flame diameter's matching degree, use the water-cooled tube unit direct mount of mutual cuttage to form in the furnace moreover, need not weld still can guarantee the gas tightness, waste time and energy when a certain water-cooled tube unit takes place to damage, the convenient maintenance of changing of dismantling.
Description
Technical Field
The utility model belongs to the technical field of the press, specifically be a furnace of natural gas steam boiler is fired to SZS.
Background
Along with the development of urban modernization in China, urban atmospheric pollution is becoming more and more serious, haze weather is frequent, the thermal efficiency of a coal-fired boiler is low, energy consumption is large, and SO in flue gas is high2The emission of NOx pollutants is serious, and the natural gas fuel is high-quality, high-efficiency, environment-friendly and clean energy fuel, so that the contradiction between the coal burning of a boiler and the environmental pollution can be effectively solved. In recent years, national policies of energy conservation, environmental protection and emission reduction are developed successively, and the gas-fired boiler is also developed unprecedentedly. For a gas boiler, the temperature of a hearth is the key for influencing the generation of nitrogen oxides, and the emission of the nitrogen oxides can be effectively reduced by reducing the temperature of the hearth.
Among the prior art, furnace is for cooperating combustor flame diameter, and furnace bottom water-cooling wall angle is very little, and in order to guarantee water cycle's reliability, the concrete must be paintd to the furnace bottom, and furnace radiation heat absorption can reduce like this, leads to the furnace temperature to rise, and nitrogen oxide's formation also can corresponding increase, and the water-cooling wall forms by scale pipe or fluorescent tube welding combination moreover, wastes time and energy, inconvenient dismantlement moreover.
Disclosure of Invention
The above-mentioned problem to prior art exists, the utility model aims to solve the technical problem that a furnace of natural gas steam boiler is fired to SZS is provided to it is not good to solve present furnace cooling effect, and the water-cooling wall welding forms and wastes time and energy, the problem of inconvenient dismantlement.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the hearth of the SZS-fired natural gas steam boiler comprises a hearth, concrete, a glass wool felt and a water-cooled wall, wherein the water-cooled wall is arranged on the inner wall of the hearth, the glass wool felt is arranged on the outer side of the water-cooled wall, the concrete is arranged on the upper end face of the front half section of the water-cooled wall, the water-cooled wall is formed by combining a plurality of water-cooled tube units which are mutually inserted, and the water-cooled wall at the bottom end is inclined.
Furthermore, the side surface of the water-cooled tube unit is a plane, a groove is formed in one side of the water-cooled tube unit, a protrusion is formed in the other side of the water-cooled tube unit, and the groove is matched with the protrusion.
Further, the adjacent water-cooling tube units are matched with each other through the grooves and the protrusions.
Furthermore, friction points are uniformly arranged on one side of the inner wall of the groove.
Furthermore, the water-cooled wall at the lower end of the hearth forms an included angle of 8 degrees with the horizontal plane.
Furthermore, the front surface of the water-cooling pipe unit is arc-shaped.
Has the advantages that: compared with the prior art, the method has the following advantages:
this SZS fires natural gas steam boiler's furnace simple manufacture, the cost is lower, the main radiation zone in furnace bottom does not pour the concrete, reinforce the heat transfer, reduce the furnace temperature, less nitrogen oxide's formation can increase the furnace diameter simultaneously, increase and combustor flame diameter's matching degree, use the water-cooled tube unit direct mount of mutual cuttage to form in the furnace moreover, need not weld still can guarantee the gas tightness, waste time and energy when a certain water-cooled tube unit takes place to damage, the convenient maintenance of changing of dismantling.
Drawings
FIG. 1 is a schematic view of the furnace structure of a SZS-fired natural gas steam boiler;
FIG. 2 is a schematic cross-sectional view of a water cooled tube unit.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the hearth of the SZS-fired natural gas steam boiler of the present application comprises a hearth 1, concrete 2, a glass wool felt 4 and a water-cooled wall 5, wherein the water-cooled wall 5 is arranged on the inner wall of the hearth 1, and the outer side of the water-cooled wall 5 is provided with a glass wool felt 4, the upper end surface of the front half section of the water-cooled wall 5 is provided with concrete 2, the water-cooled tube units 3 in the water-cooled wall 5 are horizontally led out by the boiler barrel side, the water-cooled wall 5 is formed by combining a plurality of water-cooled tube units 3 which are mutually inserted, the water-cooled wall 5 at the bottom end is inclined, the water-cooled wall 5 is inclined upwards by 8 degrees after being led out for a certain distance, the upper part of the horizontal section needs to be coated with concrete 2 locally, the outer side of the water-cooled tube unit 3 is stuck with a high-temperature glass wool felt 4, concrete is not poured in a main radiation area at the bottom of the hearth 1, therefore, the diameter of the flame of the burner can be matched, the temperature of the hearth can be reduced, and the realization of low nitrogen is ensured.
The 3 sides of water-cooled tube unit are the plane, guarantee that adjacent water-cooled tube unit 3 can laminate each other, and one side of water-cooled tube unit 3 is provided with recess 301, and the opposite side of water-cooled tube unit 3 is provided with protruding 302, and recess 301 and protruding 302 phase-match guarantee that adjacent water-cooled tube unit 3 can cuttage cooperation each other.
The adjacent water-cooling tube units 3 are mutually matched through the grooves 301 and the protrusions 302, the protrusions 302 are inserted into the grooves 301, and the water-cooling tube units 3 form a whole water-cooling wall 5 as required.
The friction points are uniformly arranged on one side of the inner wall of the groove 301, when the protrusion 302 is inserted into the groove 301, the friction points have a friction effect, the matching strength is improved, and the side face of the protrusion 302 can be tightly attached to the side wall of the groove 301 to achieve a sealing effect.
The water-cooled wall 5 at the lower end of the hearth 1 and the horizontal plane form an included angle of 8 degrees, so that the hearth 1 can be matched with the flame diameter of a burner.
The front surface of the water-cooling tube unit 3 is arc-shaped, and the arc surface has more contact area than a plane, so that the radiation heat absorption capacity of the hearth can be improved, and the temperature of the hearth is reduced.
The utility model provides a thought and implementation method of SZS fires natural gas steam boiler's furnace, the concrete application way is many, above only the utility model discloses a preferred embodiment should point out, to the ordinary skilled person in this technical field, is not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements, these improvements should also be regarded as the utility model discloses a protection scope.
Claims (6)
1. A furnace of a SZS-burning natural gas steam boiler is characterized in that: including furnace (1), concrete (2), glass wool felt (4) and water-cooling wall (5), furnace (1) inner wall is provided with water-cooling wall (5), and the outside of water-cooling wall (5) is provided with glass wool felt (4), the up end of the first half section of water-cooling wall (5) is provided with concrete (2), water-cooling wall (5) have water-cooling tube unit (3) the combination of the mutual cuttage of a plurality of to form, and bottom water-cooling wall (5) are the slope form.
2. The hearth of a SZS-fired natural gas steam boiler according to claim 1, wherein: the side face of the water-cooled tube unit (3) is a plane, a groove (301) is formed in one side of the water-cooled tube unit (3), a protrusion (302) is formed in the other side of the water-cooled tube unit (3), and the groove (301) is matched with the protrusion (302).
3. The hearth of a SZS-fired natural gas steam boiler as recited in claim 2, wherein: the adjacent water-cooling tube units (3) are matched with each other through grooves (301) and protrusions (302).
4. The hearth of a SZS-fired natural gas steam boiler as recited in claim 2, wherein: and friction points are uniformly arranged on one side of the inner wall of the groove (301).
5. The hearth of a SZS-fired natural gas steam boiler according to claim 1, wherein: the water-cooled wall (5) at the lower end of the hearth (1) forms an included angle of 8 degrees with the horizontal plane.
6. The hearth of a SZS-fired natural gas steam boiler as recited in claim 2, wherein: the front surface of the water-cooling pipe unit (3) is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576246.1U CN216431674U (en) | 2021-10-25 | 2021-10-25 | Hearth of SZS-fired natural gas steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576246.1U CN216431674U (en) | 2021-10-25 | 2021-10-25 | Hearth of SZS-fired natural gas steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216431674U true CN216431674U (en) | 2022-05-03 |
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ID=81333096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122576246.1U Active CN216431674U (en) | 2021-10-25 | 2021-10-25 | Hearth of SZS-fired natural gas steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216431674U (en) |
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2021
- 2021-10-25 CN CN202122576246.1U patent/CN216431674U/en active Active
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