CN202813329U - Gas boiler capable of operating load on large scale - Google Patents
Gas boiler capable of operating load on large scale Download PDFInfo
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- CN202813329U CN202813329U CN 201220463998 CN201220463998U CN202813329U CN 202813329 U CN202813329 U CN 202813329U CN 201220463998 CN201220463998 CN 201220463998 CN 201220463998 U CN201220463998 U CN 201220463998U CN 202813329 U CN202813329 U CN 202813329U
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- boiler
- heater
- setting height
- gas
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Abstract
The utility model discloses a gas boiler capable of operating load on a large scale and relates to a gas boiler of a steam turbine for generating electricity. The utility model mainly aims to provide the gas boiler that steam temperature and steam pressure still can meet the operating requirements of the steam turbine for generating the electricity under the condition that the gas supply is lower. The technical scheme adopted by the utility model is that a super-heated steam tube is arranged at the top part of a boiler body; the first side wall of the boiler body is provided with a first burner and a second burner; the second side wall of the boiler body is provided with a third burner and a fourth burner; the third side wall of the boiler body is provided with a fifth burner and a sixth burner; the fourth side wall of the boiler body is provided with a seventh burner and an eighth burner; the first burner, the third burner, the fifth burner and the seventh burner are equal in mounting height; the second burner, the fourth burner and the sixth burner are equal in mounting height and are higher than the first burner in mounting height; the mounting height of the eighth burner is greater than that of the second burner; and the top part of the boiler body is provided with a thickening layer. The gas boiler disclosed by the utility model is applied to the field of gas boilers.
Description
Technical field
A kind of gas fired-boiler that can regulate operating load on a large scale of the utility model relates to a kind of gas fired-boiler of power generation turbine.
Background technology
Steam turbine is the external combustion rotary machinery that steam thermal energy can be converted into mechanical power, enter steam turbine from the steam of boiler after, pass through successively nozzle and the movable vane of a series of loop configurations, the heat energy of steam is converted into the mechanical energy of turbine rotor rotation.Steam turbine is worked under HTHP and high-revolving condition usually, is a kind of comparatively accurate heavy-duty machinery, generally must form complete set of equipments, together cooperation work with boiler, generator or other driven machinery and condenser, heater, pump etc.
The steam that the gas fired-boiler in power plant produces namely is the motive power of steam turbine rotation, the operational factor of power generation turbine is: 450 ℃ ± 5 ℃, pressure is 3.82MPa, the heat that the burner of gas fired-boiler produces gas-fired is converted into the pressure and temperature of superheated steam by the heat transmission form of radiation and convection current, the burner of gas fired-boiler commonly used is two-layer setting, need coal gas can stablize supply and could so that gas fired-boiler reach specified steam temperature vapour pressure, then drive power generation turbine and move when in large supply; Can appear at when the gas supply amount is little that the gas fired-boiler vapour pressure sharply rises to rated value under the little load condition, and steam temperature does not reach 450 ℃ of requirement, thereby steam turbine generator can't be incorporated into the power networks.In operation power, the load that is incorporated into the power networks of generator all is from small to large, owing to phase deviation is excessive collision to occur when being incorporated into the power networks in order not producing and to destroy operation of power networks, and requirement must be incorporated into the power networks when little load.
The utility model content
Technical problem to be solved in the utility model provides in the less situation of a kind of gas supply amount, and the steam temperature vapour pressure still can satisfy the gas fired-boiler of power generation turbine operation.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of gas fired-boiler that can regulate operating load on a large scale, comprise body of heater and overheated steam pipe, overheated steam pipe is installed in the top of body of heater, the first burner and the second burner are installed on the first side wall of body of heater, the 3rd burner and the 4th burner are installed on the second sidewall of body of heater, the 5th burner and the 6th burner are installed on the 3rd sidewall of body of heater, the 7th burner and the 8th burner are installed on the 4th sidewall of body of heater, the first burner, the 3rd burner, the 5th burner is identical with the setting height(from bottom) of the 7th burner, the second burner, the setting height(from bottom) of the 4th burner and the 6th burner is identical and be higher than the setting height(from bottom) of the first burner, and the setting height(from bottom) of the 8th burner is higher than the setting height(from bottom) of the second burner;
The top of body of heater is provided with thickening layer.
The material of the top thickening layer of described body of heater is castable.
The setting height(from bottom) of described the first burner, the 3rd burner, the 5th burner and the 7th burner is 5.4 meters, and the setting height(from bottom) of described the second burner, the 4th burner and the 6th burner is 6 meters, and the setting height(from bottom) of described the 8th burner is 9 meters.
The beneficial effect that the utility model compared with prior art has is: it is long-pending to have reduced the radiation heating-surface in the burner hearth by thickening body of heater top, improved outlet cigarette temperature, adopt again the setting that improves a burner height, realized moving on the flame kernel, can guarantee that gas-fired is complete, the steam temperature of superheated steam satisfies the steam turbine operation requirement, so that the burning of gas fired-boiler just can be satisfied the requirement that power generation turbine moves in the less situation of gas supply amount.So also so that a small amount of coal gas can be recycled utilization equally, improve economic benefit, reached the purpose of energy-saving and emission-reduction.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is side structure schematic diagram of the present utility model.
Among the figure, 1 is the first burner, and 2 is the second burner, 3 is the first side wall, and 4 is the 3rd burner, and 5 is the 4th burner, 6 is the second sidewall, and 7 is the 3rd sidewall, and 8 is the 5th burner, 9 is the 6th burner, and 10 is the 7th burner, and 11 is the 8th burner, 12 is the 4th sidewall, 13 is burner hearth, and 14 is body of heater, and 15 is overheated steam pipe.
The specific embodiment
Such as Fig. 1, shown in Figure 2, a kind of gas fired-boiler that can regulate operating load on a large scale, comprise body of heater 14 and overheated steam pipe 15, overheated steam pipe 15 is installed in the top of body of heater 14, the first burner 1 and the second burner 2 are installed on the first side wall 3 of body of heater 14, the 3rd burner 4 and the 4th burner 5 are installed on the second sidewall 6 of body of heater 14, the 5th burner 8 and the 6th burner 9 are installed on the 3rd sidewall 7 of body of heater 14, the 7th burner 10 and the 8th burner 11 are installed on the 4th sidewall 12 of body of heater 14, the first burner 1, the 3rd burner 4, the 5th burner 8 is identical with the setting height(from bottom) of the 7th burner 10, the second burner 2, the setting height(from bottom) of the 4th burner 5 and the 6th burner 9 is identical and be higher than the setting height(from bottom) of the first burner 1, and the setting height(from bottom) of the 8th burner 11 is higher than the setting height(from bottom) of the second burner 2;
The top of body of heater 14 is provided with thickening layer.
The material of the top thickening layer of described body of heater 14 is castable.
The setting height(from bottom) of described the first burner 1, the 3rd burner 4, the 5th burner 8 and the 7th burner 10 is 5.4 meters, the setting height(from bottom) of described the second burner 2, the 4th burner 5 and the 6th burner 9 is 6 meters, and the setting height(from bottom) of described the 8th burner 11 is 9 meters.
Adjusting operating load scope of the present utility model is 5%～100%.
In the less situation of gas supply amount, the setting height(from bottom) of the first burner 1, the second burner 2, the 3rd burner 4, the 4th burner 5, the 5th burner 8, the 6th burner 9 and the 7th burner is constant, after the setting height(from bottom) of the 8th burner 11 improves, the flame kernel of burner hearth 13 with on move, so that the temperature of overheated steam pipe 15 interior superheated steams significantly improves, thereby the steam temperature vapour pressure has satisfied the instructions for use of power generation turbine.
Claims (3)
1. the gas fired-boiler that can regulate operating load on a large scale, comprise body of heater (14) and overheated steam pipe (15), overheated steam pipe (15) is installed in the top of body of heater (14), the first burner (1) and the second burner (2) are installed on the first side wall (3) of body of heater (14), the 3rd burner (4) and the 4th burner (5) are installed on second sidewall (6) of body of heater (14), the 5th burner (8) and the 6th burner (9) are installed on the 3rd sidewall (7) of body of heater (14), the 7th burner (10) and the 8th burner (11) are installed on the 4th sidewall (12) of body of heater (14), the first burner (1), the 3rd burner (4), the 5th burner (8) is identical with the setting height(from bottom) of the 7th burner (10), it is characterized in that: the second burner (2), the setting height(from bottom) of the 4th burner (5) and the 6th burner (9) is identical and be higher than the setting height(from bottom) of the first burner (1), and the setting height(from bottom) of the 8th burner (11) is higher than the setting height(from bottom) of the second burner (2);
The top of body of heater (14) is provided with thickening layer.
2. a kind of gas fired-boiler that can regulate operating load on a large scale according to claim 1, it is characterized in that: the material of the top thickening layer of described body of heater (14) is castable.
3. a kind of gas fired-boiler that can regulate operating load on a large scale according to claim 1 and 2, it is characterized in that: the setting height(from bottom) of described the first burner (1), the 3rd burner (4), the 5th burner (8) and the 7th burner (10) is 5.4 meters, the setting height(from bottom) of described the second burner (2), the 4th burner (5) and the 6th burner (9) is 6 meters, and the setting height(from bottom) of described the 8th burner (11) is 9 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220463998 CN202813329U (en) | 2012-09-13 | 2012-09-13 | Gas boiler capable of operating load on large scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220463998 CN202813329U (en) | 2012-09-13 | 2012-09-13 | Gas boiler capable of operating load on large scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202813329U true CN202813329U (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220463998 Expired - Fee Related CN202813329U (en) | 2012-09-13 | 2012-09-13 | Gas boiler capable of operating load on large scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202813329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315503A (en) * | 2014-11-06 | 2015-01-28 | 国家电网公司 | Gas boiler and gas-steam combined unit |
| CN106016231A (en) * | 2016-06-29 | 2016-10-12 | 无锡锡能锅炉有限公司 | Operation method for gas boiler |
-
2012
- 2012-09-13 CN CN 201220463998 patent/CN202813329U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315503A (en) * | 2014-11-06 | 2015-01-28 | 国家电网公司 | Gas boiler and gas-steam combined unit |
| CN106016231A (en) * | 2016-06-29 | 2016-10-12 | 无锡锡能锅炉有限公司 | Operation method for gas boiler |
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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: 20130320 Termination date: 20150913 |
|
| EXPY | Termination of patent right or utility model |