CN214406204U - Steam extraction and heat supply system capable of reducing heat supply power consumption rate - Google Patents
Steam extraction and heat supply system capable of reducing heat supply power consumption rate Download PDFInfo
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- CN214406204U CN214406204U CN202120477138.6U CN202120477138U CN214406204U CN 214406204 U CN214406204 U CN 214406204U CN 202120477138 U CN202120477138 U CN 202120477138U CN 214406204 U CN214406204 U CN 214406204U
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Abstract
The utility model discloses a can reduce the steam extraction heating system of heat supply power consumption rate, the export of steam extraction pipeline is linked together with the entry of first steam turbine, the entry of second steam turbine and the heat release side entry of peak heater, the steam vent of first steam turbine and the steam vent of second steam turbine are linked together with the heat release side entry of basic heater, the heat release side export of basic heater and the heat release export of peak heater are linked together with the entry of drain trap, the export of drain trap is linked together with the heat release side entry of drain trap cooler; the outlet of the water return pipeline is communicated with the heat absorption side inlet of the peak heater, the heat absorption side inlet of the basic heater and the heat absorption side inlet of the drain cooler after passing through the circulating water pump, and the heat absorption side outlet of the peak heater, the heat absorption side outlet of the basic heater and the heat absorption side outlet of the drain cooler are communicated with the water supply pipeline after being connected in parallel through pipelines.
Description
Technical Field
The utility model belongs to the thermal power field relates to a can reduce steam extraction heating system of heat supply power consumption rate.
Background
With the expansion of urban construction, the heat supply demand is continuously expanded, and the heat supply mode taking extraction steam of cogeneration as a main heat source is more and more important. The circulating water quantity of a heat supply network is larger and larger, the circulating water quantity is basically at the level of more than 10000t/h, the power of a circulating water pump is larger, a motor dragging mode is mostly adopted, the circulating power consumption is a large part of the heat supply energy consumption, and the reduction of the power consumption of the circulating water pump is one of the main energy-saving ways. In addition, the thermal power generating unit generally exhausts steam for heat supply, the quality of the extracted steam is high, the high-quality steam is directly used for supplying high-quality mass energy of the wasted steam, the energy utilization rate is reduced, the resource waste and the emission of carbon dioxide and pollutants are increased, and the effective utilization of energy is not facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a can reduce the steam extraction heating system of heating power consumption rate, this system can improve the utilization ratio of high-quality steam, realizes the effective utilization of the energy.
In order to achieve the above purpose, the steam extraction and heat supply system capable of reducing the heat supply power consumption rate of the utility model comprises a steam extraction pipeline, a first steam turbine, a second steam turbine, a peak heater, a basic heater, a drain tank, a drain cooler, a water return pipeline, a circulating water pump and a water supply pipeline;
the outlet of the steam extraction pipeline is divided into three paths, wherein the first path is communicated with the inlet of the first steam turbine, the second path is communicated with the inlet of the second steam turbine, the third path is communicated with the heat release side inlet of the peak heater, the steam outlet of the first steam turbine and the steam outlet of the second steam turbine are communicated with the heat release side inlet of the basic heater, the heat release side outlet of the basic heater and the heat release outlet of the peak heater are communicated with the inlet of the drain tank, and the outlet of the drain tank is communicated with the heat release side inlet of the drain cooler;
the outlet of the water return pipeline is divided into three paths after passing through a circulating water pump, wherein the first path is communicated with the heat absorption side inlet of the peak heater, the second path is communicated with the heat absorption side inlet of the basic heater, the third path is communicated with the heat absorption side inlet of the drainage cooler, the heat absorption side outlet of the peak heater, the heat absorption side outlet of the basic heater and the heat absorption side outlet of the drainage cooler are communicated with a water supply pipeline after being connected in parallel through pipelines, and the output shaft of the second turbine is connected with the driving shaft of the circulating water pump.
The steam extraction pipeline is provided with a heat supply adjusting valve.
The wind power generation system further comprises a generator and a power supply bus, wherein a driving shaft of the generator is connected with an output shaft of the first turbine, and an output end of the generator is connected with the power supply bus.
The outlet of the drain tank is communicated with the heat release side inlet of the drain cooler through a drain pump.
The heat release side outlet of the hydrophobic cooler is communicated with a hydrophobic pipeline.
And steam flow regulating valves are arranged at the inlet of the first steam turbine, the inlet of the second steam turbine and the inlet of the heat release side of the peak heater.
And circulating water flow regulating valves are arranged at the heat absorption side inlet of the peak heater, the heat absorption side inlet of the basic heater and the heat absorption side inlet of the drainage cooler.
The utility model discloses following beneficial effect has:
coal-fired unit steam extraction heating system that can reduce heat supply power consumption rate when concrete operation, utilize the thermal power unit in the row steam extraction as the heat source heat supply, wherein, the steam of steam extraction divide into the three routes, wherein enter into first turbine and do work all the way, the second way enters into the second turbine and does work, the third route enters into and releases heat in the peak heater, the steam extraction of first turbine and the steam extraction of second turbine enter into and release heat in the basic heater, the hydrophobic of basic heater output and the hydrophobic of peak heater output reentrant in the hydrophobic cooler release heat, in order to realize thermal step utilization, effectively utilize the high-grade potential energy of steam, and reduce the heating system power consumption, improve the utilization ratio of high-quality steam.
Drawings
FIG. 1 is a schematic view of the present invention;
wherein, 1 is a steam extraction pipeline 1, 2 is a heat supply regulating valve, 3 is a first steam turbine, 4 is a generator, 5 is a second steam turbine, 6 is a peak heater, 7 is a basic heater, 8 is a circulating water pump, 9 is a drain tank, 10 is a drain pump, 11 is a drain cooler, 12 is a drain pipeline, 13 is a water supply pipeline, 14 is a water return pipeline, and 15 is a power supply bus.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, the steam extraction and heat supply system capable of reducing heat supply power consumption according to the present invention includes a steam extraction pipeline 1, a first steam turbine 3, a second steam turbine 5, a peak heater 6, a basic heater 7, a drain tank 9, a drain cooler 11, a water return pipeline 14, a circulating water pump 8, and a water supply pipeline 13; the outlet of the steam extraction pipeline 1 is divided into three paths, wherein the first path is communicated with the inlet of the first steam turbine 3, the second path is communicated with the inlet of the second steam turbine 5, the third path is communicated with the heat release side inlet of the peak heater 6, the steam outlet of the first steam turbine 3 and the steam outlet of the second steam turbine 5 are communicated with the heat release side inlet of the basic heater 7, the heat release side outlet of the basic heater 7 and the heat release outlet of the peak heater 6 are communicated with the inlet of the drain tank 9, and the outlet of the drain tank 9 is communicated with the heat release side inlet of the drain cooler 11; the outlet of the water return pipeline 14 is divided into three paths after passing through the circulating water pump 8, wherein the first path is communicated with the heat absorption side inlet of the peak heater 6, the second path is communicated with the heat absorption side inlet of the basic heater 7, the third path is communicated with the heat absorption side inlet of the hydrophobic cooler 11, the heat absorption side outlet of the peak heater 6, the heat absorption side outlet of the basic heater 7 and the heat absorption side outlet of the hydrophobic cooler 11 are communicated with a water supply pipeline 13 after being connected in parallel through pipelines, and the output shaft of the second steam turbine 5 is connected with the driving shaft of the circulating water pump 8.
The utility model discloses still include generator 4 and power supply bus 15, wherein, generator 4's drive shaft is connected with first turbine 3's output shaft, and generator 4's output is connected with power supply bus 15.
A heat supply regulating valve 2 is arranged on the steam extraction pipeline 1; the outlet of the drain tank 9 is communicated with the heat release side inlet of a drain cooler 11 through a drain pump 10; the outlet of the heat release side of the drain cooler 11 is communicated with a drain pipeline 12.
Steam flow regulating valves are arranged at the inlet of the first steam turbine 3, the inlet of the second steam turbine 5 and the heat release side inlet of the peak heater 6, and the steam flow entering the first steam turbine 3, the second steam turbine 5 and the peak heater 6 is regulated through the steam flow regulating valves.
Circulating water flow regulating valves are arranged at the heat absorption side inlet of the peak heater 6, the heat absorption side inlet of the basic heater 7 and the heat absorption side inlet of the drain cooler 11, and circulating water flow entering the peak heater 6, the basic heater 7 and the drain cooler is regulated through the circulating water flow regulating valves.
The utility model discloses a concrete working process does:
the heat supply steam output by the steam extraction pipeline 1 is divided into three paths after passing through the heat supply adjusting valve 2, the first path directly enters the heat release side of the peak heater 6 to release heat, the second path enters the first steam turbine 3 to do work to drag the generator 4 to generate electricity, the electricity generated by the generator 4 is sent to the power supply bus 15 to supply power outwards, the third path enters the second steam turbine 5 to drive the circulating water pump 8 to work, the exhaust steam of the first steam turbine 3 and the exhaust steam of the second steam turbine 5 are converged and then enter the heat release side of the basic heater 7 to release heat, the drain output by the heat release side of the basic heater 7 and the drain output by the peak heater 6 are converged and then enter the drain tank 9, the drain output by the drain tank 9 enters the heat release side of the drain cooler 11 through the drain pump 10 to be cooled, and then is sent back to the water treatment workshop through the drain pipeline 12.
The circulating water of the heat supply network output by the water return pipeline 14 is boosted by the circulating water pump 8 and then divided into three paths, the first path enters the heat absorption side of the peak heater 6 to be heated, the second path enters the heat absorption side of the basic heater 7 to be heated, the third path enters the heat absorption side of the hydrophobic cooler 11 to be heated, and the circulating water output by the heat absorption side of the peak heater 6, the circulating water output by the heat absorption side of the basic heater 7 and the circulating water output by the heat absorption side of the hydrophobic cooler 11 are converged and then are sent to a heat consumer through the water supply pipeline 13.
The above, it is only the preferred of the present invention. The present invention is not limited to the above embodiments, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A steam extraction and heat supply system capable of reducing heat supply power consumption rate is characterized by comprising a steam extraction pipeline (1), a first steam turbine (3), a second steam turbine (5), a peak heater (6), a basic heater (7), a drain tank (9), a drain cooler (11), a water return pipeline (14), a circulating water pump (8) and a water supply pipeline (13);
the outlet of the steam extraction pipeline (1) is divided into three paths, wherein the first path is communicated with the inlet of a first steam turbine (3), the second path is communicated with the inlet of a second steam turbine (5), the third path is communicated with the heat release side inlet of a peak heater (6), the steam exhaust port of the first steam turbine (3) and the steam exhaust port of the second steam turbine (5) are communicated with the heat release side inlet of a basic heater (7), the heat release side outlet of the basic heater (7) and the heat release outlet of the peak heater (6) are communicated with the inlet of a drain tank (9), and the outlet of the drain tank (9) is communicated with the heat release side inlet of a drain cooler (11);
the outlet of the water return pipeline (14) is divided into three paths after passing through a circulating water pump (8), wherein the first path is communicated with the heat absorption side inlet of the peak heater (6), the second path is communicated with the heat absorption side inlet of the basic heater (7), the third path is communicated with the heat absorption side inlet of the hydrophobic cooler (11), the heat absorption side outlet of the peak heater (6), the heat absorption side outlet of the basic heater (7) and the heat absorption side outlet of the hydrophobic cooler (11) are communicated with a water supply pipeline (13) after being connected in parallel through pipelines, and the output shaft of the second steam turbine (5) is connected with the driving shaft of the circulating water pump (8).
2. An extraction heating system capable of reducing the heating power consumption rate according to claim 1, characterized in that the extraction pipeline (1) is provided with a heating regulating valve (2).
3. A steam-extraction heating system capable of reducing the consumption rate of heating power according to claim 1, further comprising a generator (4) and a power supply bus (15), wherein the driving shaft of the generator (4) is connected with the output shaft of the first turbine (3), and the output end of the generator (4) is connected with the power supply bus (15).
4. A steam-extraction heating system capable of reducing the rate of heat supply according to claim 1, wherein the outlet of the steam trap (9) is connected to the inlet of the heat-releasing side of the steam trap cooler (11) via a steam trap pump (10).
5. A steam-extraction heating system capable of reducing the heating power consumption rate according to claim 1, characterized in that the outlet of the heat-releasing side of the hydrophobic cooler (11) is communicated with a hydrophobic pipeline (12).
6. The steam-extraction heating system capable of reducing the heating power consumption rate according to claim 1, wherein steam flow regulating valves are arranged at the inlet of the first steam turbine (3), the inlet of the second steam turbine (5) and the heat-releasing side inlet of the spike heater (6).
7. The steam-extraction heating system capable of reducing the heating power consumption rate according to claim 1, wherein a circulating water flow regulating valve is arranged at the heat-absorption side inlet of the peak heater (6), the heat-absorption side inlet of the basic heater (7) and the heat-absorption side inlet of the hydrophobic cooler (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120477138.6U CN214406204U (en) | 2021-03-04 | 2021-03-04 | Steam extraction and heat supply system capable of reducing heat supply power consumption rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120477138.6U CN214406204U (en) | 2021-03-04 | 2021-03-04 | Steam extraction and heat supply system capable of reducing heat supply power consumption rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214406204U true CN214406204U (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120477138.6U Active CN214406204U (en) | 2021-03-04 | 2021-03-04 | Steam extraction and heat supply system capable of reducing heat supply power consumption rate |
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| Country | Link |
|---|---|
| CN (1) | CN214406204U (en) |
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2021
- 2021-03-04 CN CN202120477138.6U patent/CN214406204U/en active Active
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