CN216922239U - Condensation type steam turbine system driven by flash evaporation negative pressure steam - Google Patents
Condensation type steam turbine system driven by flash evaporation negative pressure steam Download PDFInfo
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- CN216922239U CN216922239U CN202220416666.5U CN202220416666U CN216922239U CN 216922239 U CN216922239 U CN 216922239U CN 202220416666 U CN202220416666 U CN 202220416666U CN 216922239 U CN216922239 U CN 216922239U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P80/00—Climate change mitigation technologies for sector-wide applications
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Abstract
The utility model provides a condensing steam turbine system driven by flash evaporation negative pressure steam, which comprises a steam turbine, a flash evaporation device, a steam condenser and vacuum pumping equipment, wherein a valveless steam inlet pipeline communicated with the flash evaporation device is connected to the steam inlet end of the steam turbine, a steam exhaust connecting pipe communicated with the steam condenser is connected to the steam outlet end of the steam turbine, a steam exhaust pipe is further arranged between the steam condenser and the vacuum pumping equipment, and a liquid inlet pipe for introducing flash evaporation hot water and a liquid exhaust pipe for exhausting the flash evaporation hot water are further arranged on the flash evaporation device.
Description
Technical Field
The utility model relates to the field of turbines, in particular to a condensing turbine system driven by flash evaporation negative pressure steam.
Background
In the fields of petroleum and chemical industry, a large amount of industrial hot water can be generated in the technological processes of cracking, fractionating, reforming, synthesizing and the like of petroleum, the temperature of the low-temperature hot water is mostly below 100 ℃, if the low-temperature hot water is directly cooled, not only can the environment be polluted, but also the waste of heat energy can be brought, the heat energy in the hot water needs to be recovered, one feasible method is to flash-evaporate the low-temperature hot water below 100 ℃ into negative pressure steam, then drive a steam turbine to convert the low-temperature hot water into mechanical energy for driving various devices (such as a compressor, a generator, a water feeding pump, an induced draft fan and the like) to complete the conversion, recovery and utilization of the heat energy, and therefore, a brand new condensing steam turbine system for driving the flash steam is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a condensing steam turbine system driven by flash evaporation negative pressure steam, which can convert low-temperature industrial hot water into negative pressure flash evaporation steam to drive a steam turbine to operate, efficiently convert heat energy into kinetic energy and complete conversion, recovery and utilization of heat energy.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides an use flash distillation negative pressure steam driven condensing turbine system, includes the steam turbine, still includes flash distillation device, condenser and evacuation equipment, the steam inlet of steam turbine is served and is connected the valveless steam inlet line with the flash distillation device communicates with each other, the play steam of steam turbine is served and is connected with the exhaust takeover that communicates with each other with the condenser, still be equipped with the steam extraction pipe between condenser and the evacuation equipment, still be equipped with the fluid-discharge tube that is used for letting in the hydrothermal feed liquor pipe of flash distillation and is used for discharging the residual hot water behind the hot water flash distillation on the flash distillation device.
Further, a vapor-liquid separator for separating water from flash steam is arranged in the flash evaporation device.
Furthermore, the liquid inlet pipe is positioned above the liquid discharge pipe, and the liquid inlet pipe is positioned below the vapor-liquid separator.
Furthermore, the bottom of the condenser is also provided with a water outlet pipe for discharging cooling water, and the water outlet pipe is provided with a condensate pump.
Furthermore, the temperature of the flash evaporation hot water passing through the liquid inlet pipe is less than 100 ℃.
The utility model has the beneficial effects that: the hot water generated by the industry is converted into flash steam through the flash device, and then is introduced into the steam turbine through the valveless steam inlet pipeline, so that the heat energy in the flash steam is converted into mechanical energy, the steam turbine is driven to convert the mechanical energy into mechanical energy for driving various devices, the conversion, the recovery and the utilization of the heat energy are completed, and the effects of energy conservation and environmental protection are finally achieved.
Drawings
FIG. 1 is a schematic view of the present invention;
reference numerals are as follows: 1. a steam turbine; 2. a flash evaporation device; 3. a condenser; 4. vacuumizing equipment; 5. a valveless air intake line; 6. a steam exhaust connecting pipe; 7. a steam extraction pipe; 8. a liquid inlet pipe; 9. a liquid discharge pipe; 10. a vapor-liquid separator; 11. a water outlet pipe; 12. a condensate pump.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
At present, in the fields of petroleum and chemical industry, in the process flows of cracking, fractionating, reforming, synthesizing and the like of petroleum, a large amount of industrial hot water is generated, the temperature of the hot water is mostly below 100 ℃, if the hot water is directly cooled, not only can cause thermal pollution to the environment, but also can bring waste of heat energy, and the heat energy in the hot water needs to be recovered, wherein a feasible method is to flash-evaporate the hot water below 100 ℃ into steam, then drive a steam turbine 1 to convert the steam into mechanical energy for driving various devices (such as a compressor, a generator, a water feeding pump, an induced draft fan and the like) to complete conversion, recovery and utilization of the heat energy, therefore, the utility model designs a condensation type steam turbine 1 system driven by flash steam, the specific structure is shown in figure 1, and the condensation type steam turbine 1 system comprises a steam turbine 1, a flash evaporation device 2 (a hot water tank), a condenser 3 and a vacuum pumping device 4, connect on steam inlet end of steam turbine 1 and communicate with each other valveless steam inlet line with flash distillation plant 2, be connected with on steam outlet end of steam turbine 1 and take over 6 with the communicating exhaust steam of condenser 3, still be equipped with steam extraction pipe 7 between condenser 3 and the evacuation equipment 4, still be equipped with on flash distillation plant 2 and be used for letting in the hydrothermal feed liquor pipe 8 of flash distillation and be used for discharging the hydrothermal fluid-discharge tube 9 of cooling (feed liquor pipe 8 is located fluid-discharge tube 9 top, and feed liquor pipe 8 is located vapour and liquid separator 10 below), still be equipped with the vapour and liquid separator 10 that is used for with moisture separation in the flash distillation steam in the flash distillation case, the bottom of condenser 3 still is equipped with the outlet pipe 11 that is used for discharging the cooling water, be equipped with condensate pump 12 on the outlet pipe 11, its theory of operation is: the method is characterized in that the industrial hot water with the temperature of 100 ℃ is introduced into a fully sealed negative pressure flash evaporation box with the pressure lower than 1 atmosphere to carry out flash evaporation to obtain flash evaporation steam, the flash evaporation steam is characterized in that the vacuum extraction equipment 4 can evacuate the condenser 3, the steam turbine 1, the flash evaporation box and each pipeline to form a vacuum negative pressure state, if the hot water with the temperature of 96 ℃ is subjected to flash evaporation, the hot water with the temperature of 81 ℃ is discharged from a liquid discharge pipe 9, part of the flash evaporation steam passes through a vapor-liquid separator 10, the flash evaporation steam is saturated steam and contains certain moisture, considering that the steam inlet humidity of the steam turbine 1 cannot be too high, the moisture in the flash evaporation steam needs to be separated so as to become the steam which meets the steam inlet requirement of the steam turbine 1, the steam is introduced into the steam turbine 1 through a valveless steam inlet pipeline to convert the heat energy in the flash evaporation steam into mechanical energy, and the steam turbine 1 is driven to be converted into the mechanical energy to drive various devices, steam discharged from the steam exhaust end of the steam turbine 1 is cooled by the condenser 3 to obtain cooling water, the cooling water passes through the condensate pump 12 from the water outlet pipe 11, the condensate water in the condenser 3 is pumped back to the process by the condensate pump 12 and is exchanged with heat generated in the process to form hot water of 100 ℃, the temperature of the hot water is reduced after the hot water is conveyed into the flash evaporation tank, the hot water is flashed into steam, the whole energy conversion cycle is completed, the steam inlet regulating valve leads air into the condenser, the vacuum degree of the steam exhaust end is changed, the pressure difference between the steam inlet end and the steam exhaust end of the steam turbine is changed, the steam flow entering the steam turbine is changed, the emergency stop valve 14 is quickly opened, the steam exhaust end of the steam turbine is communicated with the atmosphere, the pressure difference between the steam inlet end and the steam exhaust end is reduced to zero, and the emergency stop of the steam turbine is realized.
Example 1:
a certain 2000 ten thousand tons/year oil refining device can generate 3800t/h of 96 ℃ hot water per hour, the 96 ℃ hot water is flashed out of negative pressure steam through a flash evaporation device 2(1) to generate power, the negative pressure depends on the temperature drop of the hot water to be obtained, the hot water in the project is reduced to 81 ℃, the steam inlet of a steam turbine 1 is generated at 100t/h, the steam inlet pressure is 50kPa, the humidity is controlled to be more than 99% after passing through a steam-liquid separator 10, the back pressure is set to be 11kPa at the steam outlet side of the steam turbine 1, the final power reaches 4000KW, the 100t/h steam which is subjected to flash evaporation is further condensed into water through a condenser 3 after being cooled through the steam turbine 1, the water is discharged into a circulation flow from a hot well at the bottom of the condenser 3 through a condensate pump, and the rest 3700t/h hot water which is not subjected to flash evaporation directly enters the circulation flow through an outlet at the bottom of the flash evaporation device 2, so that the waste heat on the process flow is recycled, economic benefits are produced and carbon emissions produced by the conventional mode are reduced.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (5)
1. A condensing steam turbine system driven by flash negative pressure steam, comprising a steam turbine (1), characterized in that: still include flash distillation device (2), condenser (3) and evacuation equipment (4), the admission end of steam turbine (1) is served and is connected the valveless admission pipeline with flash distillation device (2) communicating, the play steam of steam turbine (1) is served and is connected with the communicating exhaust pipe of condenser (3) and takes over (6), still be equipped with between condenser (3) and evacuation equipment (4) steam extraction pipe (7), still be equipped with on flash distillation device (2) and be used for letting in the hydrothermal feed liquor pipe of flash distillation (8) and be used for discharging the hydrothermal fluid-discharge tube of the residual (9) behind the hot water flash distillation.
2. The condensing steam turbine system driven by flash negative pressure steam according to claim 1, wherein: and a vapor-liquid separator (10) for separating water from flash steam is also arranged in the flash device (2).
3. The condensing steam turbine system driven by flash negative pressure steam according to claim 2, wherein: the liquid inlet pipe (8) is positioned above the liquid discharge pipe (9), and the liquid inlet pipe (8) is positioned below the vapor-liquid separator (10).
4. The condensing steam turbine system driven by flash negative pressure steam according to claim 1, wherein: the bottom of condenser (3) still is equipped with outlet pipe (11) that are used for discharging the cooling water, be equipped with condensate pump (12) on outlet pipe (11).
5. The condensing steam turbine system driven by flash negative pressure steam according to claim 1, wherein: the temperature of the flash evaporation hot water passing through the liquid inlet pipe (8) is less than 100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220416666.5U CN216922239U (en) | 2022-02-28 | 2022-02-28 | Condensation type steam turbine system driven by flash evaporation negative pressure steam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220416666.5U CN216922239U (en) | 2022-02-28 | 2022-02-28 | Condensation type steam turbine system driven by flash evaporation negative pressure steam |
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| CN216922239U true CN216922239U (en) | 2022-07-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483226A (en) * | 2022-02-28 | 2022-05-13 | 杭州汽轮机股份有限公司 | Condensation type steam turbine system driven by flash evaporation negative pressure steam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114483226A (en) * | 2022-02-28 | 2022-05-13 | 杭州汽轮机股份有限公司 | Condensation type steam turbine system driven by flash evaporation negative pressure steam |
| CN114483226B (en) * | 2022-02-28 | 2024-03-29 | 杭州汽轮动力集团股份有限公司 | Condensing steam turbine system driven by flash evaporation negative pressure steam |
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Address after: 310000 Building 1, No. 608, Kangxin Road, Linping District, Hangzhou, Zhejiang Patentee after: Hangzhou Turbine Power Group Co.,Ltd. Address before: 310000 Building 1, No. 608, Kangxin Road, economic and Technological Development Zone, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU STEAM TURBINE Co.,Ltd. |