CN211900715U - High-parameter garbage generator set - Google Patents
High-parameter garbage generator set Download PDFInfo
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- CN211900715U CN211900715U CN202020403824.4U CN202020403824U CN211900715U CN 211900715 U CN211900715 U CN 211900715U CN 202020403824 U CN202020403824 U CN 202020403824U CN 211900715 U CN211900715 U CN 211900715U
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Abstract
The utility model provides a high-parameter garbage generator set, wherein a generator of the generator set is driven by a steam turbine, and the steam turbine is driven by steam output by a boiler; the boiler comprises a superheater and a reheater; the steam input port of the reheater is communicated with the first steam output port of the steam turbine, and the steam output port of the reheater is communicated with the second input port of the steam turbine; when the generator set works, after the steam turbine is driven by the steam output by the superheater of the waste incineration boiler, the steam is returned to the reheater for reheating through the first steam output port of the steam turbine, and the steam reheated by the reheater is sent to the steam turbine again through the steam output port to drive the steam turbine; the utility model has the advantages of simple structure and reasonable design, be favorable to improving the thermal efficiency that circulates in power station when solving msw incineration boiler high temperature over heater corrosion problems.
Description
Technical Field
The utility model belongs to the technical field of the power generation equipment technique and specifically relates to a high parameter rubbish generating set.
Background
At present, parameters of a waste incineration boiler are low, medium pressure is adopted mostly, and sub-medium temperature is adopted as temperature. Because the parameters are lower, the efficiency of the garbage generator set is reduced.
Disclosure of Invention
The utility model provides a high parameter garbage generator set, simple structure, reasonable in design improve the thermal efficiency of circulation in power station when being favorable to solving waste incineration boiler high temperature over heater corrosion problem.
The utility model adopts the following technical scheme.
A high parameter waste to electrical power generating unit, the generator of the unit being driven by a steam turbine driven by steam output from a boiler; the boiler comprises a superheater and a reheater; the steam input port of the reheater is communicated with the first steam output port of the steam turbine, and the steam output port of the reheater is communicated with the second input port of the steam turbine; when the generator set works, after the steam turbine is driven by the steam output by the superheater of the waste incineration boiler, the steam turbine is returned to the reheater for reheating through the first steam output port of the steam turbine, and the steam reheated by the reheater is sent to the steam turbine again through the steam output port to drive the steam turbine.
The boiler is a waste incineration boiler; and the output shaft of the steam turbine is connected with the input shaft of the generator.
The steam turbine is also provided with a second steam output port; the second steam output port is communicated with a steam inlet of the condenser; the condensation water outlet of the condenser is communicated with a condensation water inlet of a condensation water pump, the condensation water outlet of the condensation water pump is communicated with a condensation water inlet of a low-pressure heater, the condensation water outlet of the low-pressure heater is communicated with a condensation water inlet of a deaerator, the condensation water outlet of the deaerator is communicated with a water inlet of a high-pressure heater through a boiler water feed pump, and a water outlet of the high-pressure heater is communicated with a coal economizer arranged in a boiler.
And a steam seal heater is arranged at a communication pipeline between the condensate pump and the low-pressure heater.
And a water jet air ejector, a water jet pump or a vacuumizing device is connected beside the condenser.
And the steam turbine is provided with a regenerative heating steam extraction port which is respectively communicated with the low-pressure heater, the deaerator and the high-pressure heater.
The deaerator is provided with an input end capable of supplementing water for the deaerator.
The utility model has the advantages that: under the condition that the initial temperature of steam is certain, the initial pressure is increased to improve the exhaust steam humidity of the steam turbine, the last stage blade of the steam turbine is damaged due to water hammer, after intermediate reheating of the steam is adopted, the dryness of the exhaust steam is improved, the steam is overheated secondarily in a boiler on the premise that the steam is only condensed once and releases useful enthalpy drop in the steam turbine secondarily, the circulating heat efficiency is improved, meanwhile, the exhaust steam humidity is not too high, and the economical efficiency and the safety of a unit are improved. The utility model discloses a high parameter rubbish generating set can improve the comprehensive thermal efficiency of power plant, improves ton rubbish generated energy.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic diagram of the present invention;
in the figure: 1-a boiler; 2-a superheater; 3-a steam turbine; 4-a generator; 5-a reheater; 6-a condenser; 7-a condensate pump; 8-a low pressure heater; 9-a deaerator; 10-boiler feed pump; 11-a high pressure heater; 12-an economizer; 13-a steam seal heater; 14-water jet air extractor; 15-jetting pump.
Detailed Description
As shown in FIG. 1, a high-parameter garbage generating set, wherein a generator 4 of the generating set is driven by a steam turbine, and the steam turbine 3 is driven by steam output by a boiler 1; the boiler comprises a superheater 2 and a reheater 5; the steam input port of the reheater is communicated with the first steam output port of the steam turbine, and the steam output port of the reheater is communicated with the second input port of the steam turbine; when the generator set works, after the steam turbine is driven by the steam output by the superheater of the waste incineration boiler, the steam turbine is returned to the reheater for reheating through the first steam output port of the steam turbine, and the steam reheated by the reheater is sent to the steam turbine again through the steam output port to drive the steam turbine.
The boiler is a waste incineration boiler; and the output shaft of the steam turbine is connected with the input shaft of the generator.
The steam turbine is also provided with a second steam output port; the second steam output port is communicated with a steam inlet of the condenser; the condensed water outlet of the condenser 6 is communicated with the condensed water inlet of a condensed water pump 7, the condensed water outlet of the condensed water pump is communicated with the condensed water inlet of a low-pressure heater 8, the condensed water outlet of the low-pressure heater is communicated with the condensed water inlet of a deaerator 9, the condensed water outlet of the deaerator is communicated with the water inlet of a high-pressure heater 11 through a boiler water-feeding pump 10, and the water outlet of the high-pressure heater is communicated with an economizer 12 arranged in a boiler.
And a steam seal heater 13 is arranged at a communication pipeline between the condensate pump and the low-pressure heater.
And a water jet air ejector 14, a water jet pump 15 or a vacuumizing device is connected beside the condenser.
And the steam turbine is provided with a regenerative heating steam extraction port which is respectively communicated with the low-pressure heater, the deaerator and the high-pressure heater.
The deaerator is provided with an input end capable of supplementing water for the deaerator.
Example (b):
high-parameter steam (the pressure is 5.29-13.7MPa, and the temperature is 490-571 ℃) from a boiler superheater, after main steam expands in a steam turbine pneumatic cylinder to do work, the exhausted pressure (about 20% of new steam pressure) and the steam with reduced temperature are led to a boiler reheater through a first steam outlet to be reheated to a proper temperature, and then the reheated steam is sent to a low-pressure cylinder in a steam turbine through a second inlet port of the steam turbine to continue to expand to do work.
In the embodiment, the low-pressure heater is used for pumping steam which does partial work in the turbine into the heater to heat the feed water, so that the temperature of the water is increased, the amount of the steam discharged into the condenser by the turbine is reduced, the energy loss is reduced, and the circulation efficiency of a thermodynamic system is improved; the structure of the heater is preferably a vertical tube plate heater. The heating surface of the heater is generally composed of a straight tube bundle or a U-shaped tube bundle which is composed of brass tubes or seamless steel tubes.
In this example, the deaerator 9 may be a thermal deaerator that heats the feed water to a saturation temperature corresponding to the operating pressure of the deaerator to remove dissolved oxygen and other gases from the feed water and prevent and reduce corrosion of boiler feed water pipes, economizers, and other ancillary equipment.
In this example, the high-pressure heater is a device that heats the feed water by using partial extraction air of the turbine.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (7)
1. The utility model provides a high parameter rubbish generating set which characterized in that: the generator of the generator set is driven by a steam turbine, and the steam turbine is driven by steam output by a boiler; the boiler comprises a superheater and a reheater; the steam input port of the reheater is communicated with the first steam output port of the steam turbine, and the steam output port of the reheater is communicated with the second input port of the steam turbine; when the generator set works, after the steam turbine is driven by the steam output by the superheater of the boiler, the steam is returned to the reheater for reheating through the first steam output port of the steam turbine, and the steam reheated by the reheater is sent to the steam turbine again through the steam output port to drive the steam turbine.
2. The high parameter garbage generator set of claim 1, wherein: the boiler is a waste incineration boiler; and the output shaft of the steam turbine is connected with the input shaft of the generator.
3. The high parameter garbage generator set of claim 1, wherein: the steam turbine is also provided with a second steam output port; the second steam output port is communicated with a steam inlet of the condenser; the condensation water outlet of the condenser is communicated with a condensation water inlet of a condensation water pump, the condensation water outlet of the condensation water pump is communicated with a condensation water inlet of a low-pressure heater, the condensation water outlet of the low-pressure heater is communicated with a condensation water inlet of a deaerator, the condensation water outlet of the deaerator is communicated with a water inlet of a high-pressure heater through a boiler water feed pump, and a water outlet of the high-pressure heater is communicated with a coal economizer arranged in a boiler.
4. A high parameter refuse electric generating set according to claim 3, characterized in that: and a steam seal heater is arranged at a communication pipeline between the condensate pump and the low-pressure heater.
5. The high parameter garbage power unit of claim 4, wherein: and a water jet air ejector, a water jet pump or a vacuumizing device is connected beside the condenser.
6. The high parameter garbage power unit of claim 5, wherein: and the steam turbine is provided with a regenerative heating steam extraction port which is respectively communicated with the low-pressure heater, the deaerator and the high-pressure heater.
7. The high parameter garbage generator set of claim 6, wherein: the deaerator is provided with an input end capable of supplementing water for the deaerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020403824.4U CN211900715U (en) | 2020-03-26 | 2020-03-26 | High-parameter garbage generator set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020403824.4U CN211900715U (en) | 2020-03-26 | 2020-03-26 | High-parameter garbage generator set |
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| CN211900715U true CN211900715U (en) | 2020-11-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577401A (en) * | 2020-04-30 | 2020-08-25 | 宝钢工程技术集团有限公司 | Tail dehumidification device of saturated steam turbine generator unit and use method thereof |
| CN114876589A (en) * | 2022-06-23 | 2022-08-09 | 福建省东锅节能科技有限公司 | Supercritical waste incineration generator set |
| CN114876590A (en) * | 2022-06-23 | 2022-08-09 | 福建省东锅节能科技有限公司 | Subcritical refuse incineration generator set |
-
2020
- 2020-03-26 CN CN202020403824.4U patent/CN211900715U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577401A (en) * | 2020-04-30 | 2020-08-25 | 宝钢工程技术集团有限公司 | Tail dehumidification device of saturated steam turbine generator unit and use method thereof |
| CN114876589A (en) * | 2022-06-23 | 2022-08-09 | 福建省东锅节能科技有限公司 | Supercritical waste incineration generator set |
| CN114876590A (en) * | 2022-06-23 | 2022-08-09 | 福建省东锅节能科技有限公司 | Subcritical refuse incineration generator set |
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