CN210264830U - Steam turbine power generation system - Google Patents
Steam turbine power generation system Download PDFInfo
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- CN210264830U CN210264830U CN201921263443.4U CN201921263443U CN210264830U CN 210264830 U CN210264830 U CN 210264830U CN 201921263443 U CN201921263443 U CN 201921263443U CN 210264830 U CN210264830 U CN 210264830U
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Abstract
The utility model relates to a power generation field specifically discloses a turbine power generation system, including air intake system and the generating set who is connected with it, generating set includes steam turbine and generator, and the steam outlet of steam turbine has three waste heat utilization air outlet channel, does respectively: a first channel: the steam outlet is connected with a condenser, is connected with a boiler through a deaerator and then enters an air inlet system for circulation; and a second channel: the steam outlet is connected with a pressure equalizing box, and the outlet of the pressure equalizing box is communicated with an air inlet system to enter circulation; a third channel: the steam outlet is connected with a desuperheater and is sent out after being desuperheated. The utility model has the advantages that improve the exhaust steam utilization amount, improve heat supply capacity, through the equipment miniaturization make full use of existing equipment fixing space, reduce the cold junction loss to the at utmost, realize energy-conserving benefit maximize.
Description
Technical Field
The utility model relates to a power generation field particularly, relates to a turbine power generation system.
Background
At present, a large amount of energy consumption is needed in various industrial production fields, various heat energy conversion devices and energy utilization devices generate unused heat energy in the production process, and a large amount of heat in various forms is also generated in the production process, and the sources of the heat energy mainly include heat generated by industrial exhaust gas, heat generated by high-temperature products and slag, heat generated by cooling media, heat generated by chemical reaction processes, combustible waste gas, waste materials, heat energy of waste liquid, and heat generated by waste gas and waste water. The waste heat utilization of the boiler industry is an important subject in energy conservation at present, and has high economic and social benefits. For example, the waste heat of smelting furnaces in the boiler industry is utilized by converting the waste heat discharged from the smelting furnaces into other energy sources, such as electric energy, steam energy or as power to directly drive other mechanical equipment and supply heat. If the steam drives the steam turbine to drive the generator to generate electricity, research shows that the water supply through the steam turbine still has high heat utilization value, for example, superheated steam still comes out to be steam after generating mechanical energy through the back pressure steam turbine, and can be directly supplied to steam users, so that the water temperature at the outlet end of the extraction condensing steam turbine set can reach 80 ℃, if the water generates cold through the absorption refrigerator, the water is used as office workshop of a summer factory, workers operate the workshop to cool, the cooled water is used as boiler water to be fed back to the boiler again, and the water is reused, so that the utilization rate of the surplus is greatly improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a turbine power generation system to solve above-mentioned problem.
For realizing the purpose of the utility model, the technical proposal adopted is that: the utility model provides a steam turbine power generation system, includes air intake system and the generating set who is connected with it, and generating set includes steam turbine and generator, and its characterized in that, the steam outlet end of steam turbine has three air outlet channel, is respectively: a first channel: the steam outlet end is connected with a condenser, is connected with a boiler through a deaerator and then enters an air inlet system for circulation; and a second channel: the steam outlet end is connected with a pressure equalizing box, and the outlet of the pressure equalizing box is communicated with an air inlet system to enter circulation; a third channel: the steam outlet end is connected with a desuperheater, and the steam is sent out after being desuperheated.
Specifically, a channel at the steam outlet end is communicated with a steam exhaust conveying pipe of a low-pressure cylinder of the steam turbine; the second channel is communicated with a low-pressure water vapor conveying pipe of the low-pressure cylinder of the steam turbine; and the third passage is communicated with a high-pressure gas pipeline of a high-pressure cylinder of the steam turbine.
Specifically, the delivery port of oxygen-eliminating device connects the water pump and carries water to the boiler, the water pump including the direct current water pump and the exchange water pump and both interlocks of parallelly connected setting.
Specifically, a low-pressure heater is further arranged between the water pump and the boiler, and the water pump is heated by the low-pressure heater and then is conveyed to the boiler for recycling.
Specifically, the air inlet system comprises an air inlet pipeline and a branch cylinder connected with the air inlet pipeline, and the branch cylinder is connected with an air inlet of the steam turbine.
Specifically, the condenser cooling water inlet is connected with a condensed water inlet pipeline, the condensed water outlet pipeline is connected with the condenser cooling water outlet, and an air cooler and an oil cooler which are connected with the condenser in parallel are arranged between the condensed water inlet pipeline and the condensed water outlet pipeline.
Specifically, the condenser is connected with a condensed water jet air ejector, and the condensed water jet air ejector is communicated with the water jet tank.
Specifically, one path of a steam outlet of the steam distributing cylinder is connected with the steam turbine, and the other path of the steam outlet of the steam distributing cylinder is connected with the desuperheater.
Specifically, a steam return pipe is arranged on the condenser and communicated with an inlet end of the pressure equalizing box.
Specifically, the oxygen-eliminating device be provided with the demineralized water entry, demineralized water inlet channel is connected to the demineralized water entry, the oxygen-eliminating device on still be provided with the water supply mouth, the one end of delivery pipe is connected to the water supply mouth, the other end intercommunication oxygen-eliminating device of delivery pipe and the pipeline between the low pressure feed water heater.
The utility model has the advantages that: the utility model achieves the effect of improving the heat utilization rate by recycling the waste heat steam after the steam turbine applies work;
the first channel conveys low-pressure and low-temperature steam output by a low-pressure cylinder of the steam turbine to a condenser for condensation and deoxidization, condensed water is conveyed to a boiler after passing through a low-pressure heater for recycling, water resources are saved, and an oil cooler is connected in parallel with the condenser for cooling lubricating oil of a bearing of the steam turbine so as to ensure normal operation of the steam turbine;
the second channel enables low-pressure steam output by the steam turbine to pass through the pressure equalizing box, pressure of high-temperature steam entering the box body is equalized, the low-pressure steam is conveyed to the steam distributing cylinder to be mixed with high-pressure steam input by the air inlet system, and then the high-pressure steam is conveyed to the steam turbine to be reused;
the third channel is used for conveying the gas output by the high-pressure cylinder of the steam turbine to a user for use after the temperature of the gas is reduced by the desuperheater, the high-pressure cylinder outputs high-temperature steam, the temperature of the steam can reach 240 ℃, and the steam is conveyed to the user and can be fully utilized;
the steam output by the steam turbine is treated and recycled by the three treatment systems, so that the heat utilization rate of high-temperature steam is greatly improved, and the three treatment systems are environment-friendly and energy-saving.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1-steam inlet pipeline, 2-steam separation cylinder, 3-steam turbine, 4-generator, 5-condenser, 6-deaerator, 7-pressure equalizing tank, 8-low pressure heater, 9-demineralized water inlet pipeline, 10-oil cooler, 11-air cooler, 12-desuperheater, 13-condensed water outlet pipeline, 14-condensed water inlet pipeline, 15-water injection tank, 16-exhaust steam conveying pipe, 17-low pressure steam conveying pipe, 18-steam return pipe, 19-chemical water inlet pipe and 20-steam injection air extractor.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment,
As shown in fig. 1, the utility model provides a steam turbine power generation system, including air intake system and the generating set who is connected with it, generating set includes steam turbine 3 and generator 4, and the mechanical output end and the generator 4 of steam turbine 3 are connected, drive generator 4 and generate electricity, and the electric wire netting is sent into to the electricity that sends and uses, and the steam outlet end of steam turbine 3 has three outlet channel, is respectively:
a first channel: the steam outlet end of a steam exhaust conveying pipe 16 of a low-pressure cylinder of the steam turbine 3 is connected with a condenser 5 and is connected with a boiler through a deaerator 6, and the water outlet of the deaerator 6 is connected with a water pump to convey water to the boiler and then enter an air inlet system for circulation;
and a second channel: a low-pressure water vapor conveying pipe 17 of a low-pressure cylinder of the steam turbine 3 is connected with the pressure equalizing box 7, and an outlet of the pressure equalizing box 7 is communicated with an air inlet system to enter circulation;
a third channel: the high-pressure gas transmission pipeline of the high-pressure cylinder of the steam turbine 3 is connected with the desuperheater 12, steam coming out of the high-pressure cylinder of the steam turbine 3 can reach 250 ℃, and is sent to a factory user for use after being desuperheated, so that the heat utilization rate is improved.
Furthermore, the water pump comprises a direct-current water pump and an alternating-current water pump which are arranged in parallel and are interlocked.
Furthermore, a low-pressure heater 8 is arranged between the water pump and the boiler, and the water is heated by the low-pressure heater 8 and then sent to the boiler for reuse.
Further, the air inlet system comprises an air inlet pipeline 1 and a branch cylinder 2 connected with the air inlet pipeline, and the branch cylinder 2 is connected with an air inlet of a steam turbine 3.
Furthermore, one path of the steam outlet of the steam-distributing cylinder 2 is connected with the steam turbine 3, and the other path is connected with the desuperheater 12.
Furthermore, a steam return pipe 18 is connected to the condenser 5, the steam return pipe 18 is communicated with the pressure equalizing box 7, a drain pipe is further arranged on the pressure equalizing box 7, the drain pipe is connected with the condenser 5, the pressure equalizing box 7 mainly has the function of equalizing the pressure of high-temperature gas entering the box when in work, when the box is under high load, low-temperature water is introduced to reduce the temperature of the high-temperature steam to achieve the effect of reducing the pressure, each working pipeline needs to be preheated before the steam turbine system is started, high-temperature water is usually adopted for preheating, the drain pipe has the function of introducing the preheated water into the condenser 5 from the box for recycling, the air return pipe 18 is arranged to recycle redundant high-temperature gas to the condenser 5 through the air return pipe 18 when the pipeline pressure is increased due to high load of the steam turbine 3, and the operation safety of the steam turbine 3 is further improved.
Further, the deaerator 6 be provided with the demineralized water entry, demineralized water inlet connection demineralized water inlet pipe 9, the deaerator 6 on still be provided with the water supply mouth, the one end of delivery pipe is connected to the water supply mouth, the other end intercommunication deaerator 6 and the pipeline between the low pressure feed water heater 8 of delivery pipe.
Example II,
On the basis of the first embodiment, further, a cooling water inlet of the condenser 5 is connected with a condensed water inlet pipeline 14, a condensed water outlet pipeline 13 is connected with a cooling water outlet of the condenser 5, an air cooler 11 and an oil cooler 10 which are connected with the condenser 5 in parallel are arranged between the condensed water inlet pipeline 14 and the condensed water outlet pipeline 13, the steam turbine 3 and the generator 2 normally operate, a part of work is consumed due to friction of the bearing, the oil cooler 10 converts the heat into heat to increase the temperature of the lubricating oil of the bearing, if the oil temperature is too high, the bearing is likely to be softened, deformed or burnt, in order to normally operate the bearing, the temperature of the lubricating oil must be kept within a certain range, the temperature of the oil entering the bearing is generally required to be 35-45 ℃, the temperature rise of the oil discharged from the bearing is generally 10-15 ℃, and therefore, the oil discharged from the bearing must be cooled and then, the higher lubricating oil of temperature and microthermal cooling water carry out the heat exchange in oil cooler 10, reach control lubricating oil temperature through adjusting cooling water flow, the utility model discloses a parallelly connected mode of a plurality of oil coolers 10 carries out the heat transfer cooling.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made by those skilled in the art within the spirit and principle of the present invention, and these equivalent modifications or replacements are included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a steam turbine power generation system, includes air intake system and the generating set who is connected with it, and the generating set includes steam turbine (3) and generator (4), and its characterized in that, the steam outlet of steam turbine (3) has three waste heat utilization air outlet channel, is respectively:
a first channel: the steam outlet is connected with a condenser (5), is connected with a boiler through a deaerator (6), and then enters an air inlet system for circulation;
and a second channel: the steam outlet is connected with a pressure equalizing box (7), and the outlet of the pressure equalizing box (7) is communicated with an air inlet system to enter circulation;
a third channel: the steam outlet is connected with a desuperheater (12) and is sent out after being desuperheated.
2. The steam turbine power generation system of claim 1, wherein the steam outlet of the first passage is a steam exhaust pipe (16) connected to a low pressure cylinder of the steam turbine (3); the steam outlet of the channel II is a low-pressure steam delivery pipe (17) connected with the low-pressure cylinder of the steam turbine (3); and a steam outlet of the channel III is a high-pressure gas transmission pipeline connected with a high-pressure cylinder of the steam turbine (3).
3. The steam turbine power generation system as claimed in claim 1, wherein the water outlet of the deaerator (6) is connected with a water pump to deliver water to a boiler, and the water pump comprises a direct-current water pump and an alternating-current water pump which are arranged in parallel and are interlocked.
4. The steam turbine power generation system according to claim 3, wherein a low-pressure heater (8) is further arranged between the water pump and the boiler, and the low-pressure heater (8) heats the water pump and the boiler and then sends the water pump and the boiler to the boiler for reuse.
5. A steam turbine power generation system according to claim 1, characterized in that the air inlet system comprises an air inlet pipe (1) and a gas distribution cylinder (2) connected thereto, the gas distribution cylinder (2) being connected to the air inlet of the steam turbine (3).
6. The steam turbine power generation system according to claim 1, wherein the cooling water inlet of the condenser (5) is connected with a condensed water inlet pipe (14), the condensed water outlet pipe (13) connected with the cooling water outlet of the condenser (5), and an air cooler (11) and an oil cooler (10) which are connected with the condenser (5) in parallel are arranged between the condensed water inlet pipe (14) and the condensed water outlet pipe (13).
7. The steam turbine power generation system according to claim 1, wherein the condenser (5) is connected with a condensed water ejector (20), and the condensed water ejector (20) is communicated with the water injection tank (15).
8. The steam turbine power generation system according to claim 5, wherein the steam outlet of the steam-splitting cylinder (2) is connected with the steam turbine (3) in one path and the desuperheater (12) in the other path.
9. The steam turbine power generation system according to claim 1, wherein the condenser (5) is provided with a steam return pipe (18), and the steam return pipe (18) is communicated with an inlet end of the pressure equalizing tank (7).
10. The steam turbine power generation system as claimed in claim 1, wherein the deaerator (6) is provided with a demineralized water inlet connected with the demineralized water inlet pipe (9), the deaerator (6) is further provided with a water supply port connected with one end of a water supply pipe, and the other end of the water supply pipe is communicated with a pipeline between the deaerator (6) and the low-pressure heater (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921263443.4U CN210264830U (en) | 2019-08-06 | 2019-08-06 | Steam turbine power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921263443.4U CN210264830U (en) | 2019-08-06 | 2019-08-06 | Steam turbine power generation system |
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| Publication Number | Publication Date |
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| CN210264830U true CN210264830U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921263443.4U Active CN210264830U (en) | 2019-08-06 | 2019-08-06 | Steam turbine power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906146A (en) * | 2023-07-25 | 2023-10-20 | 嘉兴市绿色能源有限公司 | Waste incineration waste heat utilization power generation system |
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2019
- 2019-08-06 CN CN201921263443.4U patent/CN210264830U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116906146A (en) * | 2023-07-25 | 2023-10-20 | 嘉兴市绿色能源有限公司 | Waste incineration waste heat utilization power generation system |
| CN116906146B (en) * | 2023-07-25 | 2024-05-03 | 嘉兴市绿色能源有限公司 | Waste incineration waste heat utilization power generation system |
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Address after: Joaquin Avenue in Qingbaijiang District of Chengdu city of Sichuan Province in 610000 section of No. 501 Patentee after: Cecep (Chengdu) Energy Technology Service Co.,Ltd. Address before: Joaquin Avenue in Qingbaijiang District of Chengdu city of Sichuan Province in 610000 section of No. 501 Patentee before: CHENGDU QINGBAIJIANG DISTRICT TAIBO ELECTRIC POWER CO.,LTD. |