CN217129644U - Peak-regulating heat supply unit for gas-electric boiler - Google Patents
Peak-regulating heat supply unit for gas-electric boiler Download PDFInfo
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- CN217129644U CN217129644U CN202122350206.5U CN202122350206U CN217129644U CN 217129644 U CN217129644 U CN 217129644U CN 202122350206 U CN202122350206 U CN 202122350206U CN 217129644 U CN217129644 U CN 217129644U
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Abstract
The utility model discloses a gas-electric boiler peak regulation heat supply unit, including gas turbine, gas turbine and first generator coaxial coupling, first generator is connected with electric boiler, and gas turbine is connected with the steam turbine, and steam turbine and second generator coaxial coupling, second generator are connected with electric boiler, and electric boiler passes through heat supply network circulating water pump and heat supply network heater connection. The utility model solves the problem of difficult peak regulation of the power grid at the present stage and increases the utilization rate of renewable energy sources; and the electric boiler realizes thermoelectric decoupling, and meets the civil task of heat supply in winter of a thermal power plant.
Description
Technical Field
The utility model belongs to the technical field of heating heat supply, a peak shaving heat supply unit of gas-electric boiler is related to.
Background
In recent years, the rapid soaring of Chinese economy guides the continuous expansion and development of electric power industry, the installed capacity of the power generating units in China continuously rises, and the coal-fired thermal power generation is an important component of the energy system in China at present and in a long period of time in the future. In recent years, under the encouragement of national policy on energy conservation and emission reduction and the increasing environmental protection pressure, the coal and electricity energy conservation and emission reduction work in China has remarkable effect, and in the aspect of pollutant emission, the smoke emission accounts for 5.6% of the total smoke emission in China in 2014; the emission of sulfur dioxide accounts for 31.1 percent of the total national emission; the emission of nitrogen oxides accounts for 31.6 percent of the total national emission. With the increasing and slowing of the electricity demand of the whole society and the large-scale development of renewable energy sources, the number of thermal power utilization hours is reduced year by year, so that the operation flexibility of a thermal power unit is improved, and the large-scale participation in the deep peak regulation of a power grid is trended.
Particularly, in the three north areas of China, the specific gravity of a cogeneration unit is high, and for example, in the northeast power grid, in the current power supply structure, thermal power accounts for 70% of the total installed power, wind power accounts for 20% of the total installed power, and nuclear power units are put into operation successively. In order to reduce the wind and light abandonment, more renewable resources are utilized, the consumption of primary energy is reduced, energy conservation and emission reduction are achieved, and the environmental protection pressure is reduced by utilizing renewable clean energy. But the most outstanding problems in the operation of the power grid are that hydropower, a pure condensing unit and other peak-adjustable power sources are scarce and difficult to adjust the peak. In the heating period in winter, the operation capacity of the heat supply unit accounts for 70% of the total operation capacity of the thermal power unit, the thermal power unit operates in a mode of fixing power by heat, and the peak regulation capacity is only about 10%, so that the problem of wind power consumption is more prominent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas-electric boiler peak shaving heat supply unit has solved the problem of the electric wire netting peak shaving difficulty in winter that exists among the prior art.
The utility model adopts the technical proposal that:
a peak shaving heat supply unit of a gas-electric boiler comprises a gas turbine, wherein the gas turbine is coaxially connected with a first generator, the first generator is connected with an electric boiler, the gas turbine is connected with a steam turbine, the steam turbine is coaxially connected with a second generator, the second generator is connected with the electric boiler, and the electric boiler is connected with a heat supply network heater through a heat supply network circulating water pump.
The utility model discloses a characteristics still lie in:
the gas turbine is connected with the first generator through a coupling.
The steam turbine is connected with the second generator through a coupling.
The electric boiler and the heat supply network circulating water pump form a loop through a pipeline
The steam outlet of the gas turbine is connected with the steam inlet of the steam turbine through a pipeline.
The heat supply network heater also comprises a heat supply network water supply port and a heat supply network water return port.
The heating net heater is a surface heater.
The utility model has the advantages that:
the utility model discloses an export at gas turbine generator and conventional turbo generator exit linkage electric boiler equipment, during the electric wire netting peak shaving, utilize electric boiler with unnecessary electric energy to turn into heat energy, both can be with peak shaving income maximize, can provide stable heat source for the heat consumer again, utilize heat consumer to consume electric quantity and electric wire netting peak shaving electric quantity to realize unit income maximize, unit efficiency maximize.
Drawings
FIG. 1 is a diagram of a peak shaving heat supply unit of a gas-electric boiler of the present invention;
in the figure, 1 is a gas turbine, 2 is a first generator, 3 is a steam turbine, 4 is a second generator, 5 is an electric boiler, 6 is a heat supply network heater, and 7 is a heat supply network circulating water pump.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a gas-electric boiler peak regulation heat supply unit, as figure 1, including gas turbine 1, gas turbine 1 and the 2 coaxial coupling of first generator, first generator 2 is connected with electric boiler 5, and gas turbine 1 is connected with steam turbine 3, and steam turbine 3 and 4 coaxial coupling of second generator, second generator 4 are connected with electric boiler 5, and electric boiler 5 passes through heat supply network circulating water pump 7 and is connected with heat supply network heater 6.
The gas turbine 1 is connected with the first generator 2 through a coupling; the steam turbine 3 is connected with the second generator 4 through a coupler; the electric boiler 5 and the heat supply network circulating water pump 7 form a loop through a pipeline; the steam outlet of the gas turbine 1 is connected with the steam inlet of the steam turbine 3 through a pipeline; the heat supply network heater 6 is a surface heater, and the heat supply network heater 6 further comprises a heat supply network water supply port and a heat supply network water return port.
The utility model discloses circulating unit makes up with electric boiler technique, reaches the heat consumer and provides stable heat source, satisfies the electric wire netting demand of adjusting peak simultaneously, realizes peak-shaving income and heat supply income maximize, unit efficiency maximize.
On one hand, the gas turbine 1 is connected with the first generator 2 and converted into electric energy to supply power to the electric boiler 5, on the other hand, steam generated after the exhaust steam of the gas turbine 1 heats water enters the steam turbine 3 through a pipeline, so that heat energy input by the steam turbine 3 is converted into mechanical energy and converted into electric energy through the second generator 4 to supply power to the electric boiler 5.
When a thermal power plant needs to supply heat to the outside in winter, a large amount of steam entering the gas turbine 1 and exhausted after acting is used for supplying heat to the outside, the acting steam generates electric energy, and the electric energy enters an electric network, so that the thermal power plant needs to supply electric energy to the electric network during the heat supply period for ensuring the heat supply, and a large amount of electric energy is not needed during the peak shaving period of the electric network, so that the contradiction between the heat supply and the electric network is caused, in order to solve the problem, two generator outlets of a first generator 2 and a second generator 4 are utilized during the heat supply in winter, the electric energy of the generators is transmitted to an electric boiler 5 through a circuit, and the transmitted electric energy utilizes an internal electrode to heat water in the electric boiler 5, so that the water temperature is improved, and the electric energy is consumed; through part heat supply network circulating water pump 7, carry out the closed circulation with the water of 5 internal heating of electric boiler, effectual water with the electric boiler inside carries out even, quick heating.
The hot water that heat supply network heater 6 one side was connected with the hot water of heat supply heat consumer, the opposite side is connected with the inside high-temperature water of electric boiler, transmit the hot water that needs supply heat consumer for the hot water of high-temperature hot water of electric boiler 5 through surface type heat supply network heater 6, and then realize the transmission of heat energy, utilize this scheme, heat supply and electric wire netting when lower to the electric energy demand winter, utilize the electric boiler to produce more heats with the unnecessary electric energy of generator and satisfy the heat supply demand, the electric energy that gets into the electric wire netting has reduced simultaneously, the effectual electric wire netting burden that has reduced, the demand of heat consumer has also been ensured, thermoelectric decoupling zero has been realized.
Claims (4)
1. The peak shaving heat supply unit of the gas-electric boiler is characterized by comprising a gas turbine (1), wherein the gas turbine (1) is coaxially connected with a first generator (2), the first generator (2) is connected with an electric boiler (5), the gas turbine (1) is connected with a steam turbine (3), the steam turbine (3) is coaxially connected with a second generator (4), the second generator (4) is connected with the electric boiler (5), and the electric boiler (5) is connected with a heat supply network heater (6) through a heat supply network circulating water pump (7);
the steam outlet of the gas turbine (1) is connected with the steam inlet of the steam turbine (3) through a pipeline;
the electric boiler (5) and the heat supply network circulating water pump (7) form a loop through a pipeline, and the heat supply network heater (6) further comprises a heat supply network water supply port and a heat supply network water return port.
2. Peak-shaving heating unit for gas-electric boilers in accordance with claim 1, characterized by the fact that the gas turbine (1) is coupled to the first generator (2) by means of a coupling.
3. A peak-shaving heat supply unit for gas-electric boilers in accordance with claim 1, characterized by the fact that the turbine (3) is coupled to the second generator (4).
4. Peak-shaving heating unit for gas-electric boilers in accordance with claim 1, characterized by the fact that the heating network heater (6) is a surface heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122350206.5U CN217129644U (en) | 2021-09-27 | 2021-09-27 | Peak-regulating heat supply unit for gas-electric boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122350206.5U CN217129644U (en) | 2021-09-27 | 2021-09-27 | Peak-regulating heat supply unit for gas-electric boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217129644U true CN217129644U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122350206.5U Active CN217129644U (en) | 2021-09-27 | 2021-09-27 | Peak-regulating heat supply unit for gas-electric boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN217129644U (en) |
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2021
- 2021-09-27 CN CN202122350206.5U patent/CN217129644U/en active Active
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