CN117469212B - Multistage steam jet air extractor system for steam turbine - Google Patents
Multistage steam jet air extractor system for steam turbine Download PDFInfo
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- CN117469212B CN117469212B CN202311799299.7A CN202311799299A CN117469212B CN 117469212 B CN117469212 B CN 117469212B CN 202311799299 A CN202311799299 A CN 202311799299A CN 117469212 B CN117469212 B CN 117469212B
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- steam
- cooler
- primary
- ejector
- tertiary
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- 238000000605 extraction Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 abstract description 19
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000004134 energy conservation Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/02—Other direct-contact heat-exchange apparatus the heat-exchange media both being gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
- F04F5/20—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating
- F04F5/22—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating of multi-stage type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
Abstract
The invention discloses a multistage steam jet air extractor system for a steam turbine, which belongs to the technical field of auxiliary equipment of the steam turbine and comprises an air extracting part and a cooler part, wherein the air extracting part comprises two primary steam ejectors, a secondary steam ejector and a tertiary steam ejector, and the cooler part comprises a primary cooler, a secondary cooler and a tertiary cooler which are sequentially connected in series; one end of each of the two primary steam ejectors is connected with a primary cooler; the three-stage steam jet air extractor is arranged, so that the consumption of working steam of the steam jet air extractor can be reduced, the energy is saved, the environment is protected, a higher vacuum value and a larger extraction amount can be realized, the three-stage steam jet air extractor is suitable for a large-sized generator set, meanwhile, the heat efficiency of the generator set can be improved, and the three-stage series structure of the cooler can better recover the heat quantity of a steam-gas mixture, thereby being beneficial to energy saving and consumption reduction.
Description
Technical Field
The invention relates to the technical field of auxiliary equipment of steam turbines, in particular to a multistage steam jet air extractor system for a steam turbine.
Background
The steam turbine is a rotary steam power device, high-temperature and high-pressure steam is accelerated to form air flow through a nozzle and is sprayed onto blades, so that a rotor provided with a blade row rotates and simultaneously does work outwards, the steam in the steam turbine is collected into a condenser after doing work, the air extractor continuously extracts air and non-condensed air mixture which are leaked into the condenser from the condenser, the condenser is kept to operate under higher vacuum all the time, and the air extractor can be divided into a water jet air extractor and a steam jet air extractor, and the difference is mainly that working mediums are different.
The steam jet air extractor and the water jet air extractor belong to the injection air extractor. The steam jet air extractor has the function of extracting non-condensed gas and air leaking into the steam side space of the condenser from the inside of the condenser in a negative pressure state so as to maintain the vacuum state of the steam side of the condenser (air cooler) and improve the thermal performance of the condenser, thereby realizing the energy-saving and efficient operation of the generator set. The capacity of a unit of a random power plant is increased, the air extraction capacity and the air extraction quantity of a condenser (air cooler) are increased along with the capacity increase of the unit, the air extraction capacity and the air extraction quantity of the corresponding air extractor are continuously improved and increased, the prior two-stage steam jet air extractor device cannot meet the requirements of higher vacuum value and larger air extraction quantity, the working steam consumption of the steam jet air extractor is greatly increased along with the increase of the vacuum value and the increase of the air extractor quantity, the energy conservation and environmental protection requirements are not facilitated, and meanwhile, the size of the steam ejector is increased along with the increase of the air extraction quantity, so that the manufacturing is difficult and the manufacturing cost is increased.
Disclosure of Invention
The invention aims to provide a multistage steam jet air extractor system for a steam turbine, which solves the following technical problems: the existing two-stage steam jet air extractor device cannot meet the requirements of higher vacuum value and larger extraction amount, and the working steam consumption of the steam jet air extractor is greatly increased along with the increase of the vacuum value and the increase of the air extractor amount, so that the requirements of energy conservation and environmental protection are not facilitated, and meanwhile, the size of the steam ejector is increased along with the increase of the extraction amount, so that the manufacturing is difficult and the manufacturing cost is increased.
The aim of the invention can be achieved by the following technical scheme:
the multistage steam jet air extractor system for the steam turbine comprises an air extracting part and a cooler part, wherein the air extracting part comprises two primary steam ejectors, a secondary steam ejector and a tertiary steam ejector, and the cooler part comprises a primary cooler, a secondary cooler and a tertiary cooler which are sequentially connected in series;
one end of each of the two primary steam ejectors is connected with the primary cooler, one end of each of the secondary steam ejectors is connected with the primary cooler, the other end of each of the secondary steam ejectors is connected with the secondary cooler, and one end of each of the tertiary steam ejectors is connected with the secondary cooler, and the other end of each of the tertiary steam ejectors is connected with the tertiary cooler.
As a further scheme of the invention: the primary steam ejector is provided with a steam header and an air extraction header, the steam header is provided with a steam port, and the air extraction header is provided with an air extraction port.
As a further scheme of the invention: the one end that one-level cooler and tertiary cooler kept away from mutually all is provided with the water side head, be connected with bleed port and water drain on the water side head, be connected through taking over between one-level cooler, second grade cooler and the tertiary cooler, also be provided with bleed port and water drain on taking over, be located still be connected with condensate inlet and condensate outlet on taking over of one-level cooler and second grade cooler, the bottom of one-level cooler and tertiary cooler all is connected with the condensate outlet, the top of tertiary cooler still is connected with the gas vent.
As a further scheme of the invention: the one-stage steam ejector, the two-stage steam ejector and the three-stage steam ejector all comprise a mixing chamber, one side of the mixing chamber is connected with a steam flange, a nozzle is arranged on the steam flange and positioned in the mixing chamber, a diffuser is arranged at one end of the mixing chamber away from the steam flange, the bottom of the mixing chamber is an air suction port, and one end of the diffuser away from the mixing chamber is an air outlet.
As a further scheme of the invention: the mixing chamber is internally provided with a fairing, the fairing is positioned outside the nozzle and consists of a cylindrical part and a conical part, the side wall of the cylindrical part is uniformly provided with round holes along the circumferential direction, and short pipes are fixed in the round holes.
As a further scheme of the invention: the inside of the short pipe is fixedly provided with a baffle, the middle position of the baffle is provided with a communication hole, a first mounting frame and a second mounting frame are fixed on the side wall of the baffle, which is far away from the nozzle, a first adjusting plate is rotatably mounted on the first mounting frame, and a second adjusting plate is rotatably mounted on the second mounting frame.
As a further scheme of the invention: the length of the first adjusting plate is greater than that of the second adjusting plate.
As a further scheme of the invention: the baffle is provided with the gag lever post on keeping away from the lateral wall of nozzle, set up flutedly in the gag lever post, be connected with the spring on the inner wall of recess, the second regulating plate is connected to the one end of spring.
The invention has the beneficial effects that:
according to the invention, the existing steam jet air extractor is improved, and the three-stage steam jet air extractor is arranged, so that the consumption of working steam of the steam jet air extractor can be reduced, the energy is saved, the environment is protected, a higher vacuum value and a larger extraction amount can be realized, the steam jet air extractor is suitable for a large-sized generator set, the thermal efficiency of the generator set can be improved, and the three-stage series structure of the cooler can better recover the heat quantity of a steam-gas mixture, thereby being beneficial to energy conservation and consumption reduction;
the invention can reduce the structural size of the steam ejector by arranging the steam ejector in a combined mode, and reduce the manufacturing difficulty and the manufacturing cost;
according to the invention, through arranging structures such as the partition plate, the first regulating plate and the second regulating plate, the angles of the first regulating plate and the second regulating plate are changed according to the discharge amount of working steam, so that steam can smoothly pass through the steam ejector, when the discharge amount of the steam is large, the angle between the first regulating plate and the second regulating plate is increased, and when the discharge amount of the steam is small, the angle between the first regulating plate and the second regulating plate is small, and the small-discharge steam can also form high-speed air flow.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a cross-sectional view of a primary steam injector of the present invention;
FIG. 5 is a schematic perspective view of the fairing of the present invention;
FIG. 6 is a schematic diagram of a second embodiment of the present invention;
fig. 7 is a schematic structural view of the stop lever of the present invention.
In the figure: 1. a steam port; 2. an extraction opening; 3. a vent port; 4. a water outlet; 5. a condensed water outlet; 6. an exhaust port; 7. a condensate inlet; 8. a condensate outlet; 9. a steam header; 10. an air extraction header; 11. a primary cooler; 12. a secondary cooler; 13. a three-stage cooler; 14. a primary steam ejector; 15. a secondary steam ejector; 16. a three stage steam injector; 17. a steam flange; 18. a mixing chamber; 1801. a partition plate; 1802. a communication hole; 1803. a spring; 1804. a first mounting frame; 1805. a first adjustment plate; 1806. a second mounting frame; 1807. a second adjusting plate; 1808. a groove; 1809. a limit rod; 19. a nozzle; 20. a diffuser; 21. an air suction port; 22. an air outlet; 23. a fairing; 24. a round hole; 25. a short pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 to 3, the present invention is a multi-stage steam ejector system for a steam turbine, comprising an ejector part including two primary steam ejectors 14, a secondary steam ejector 15, and a tertiary steam ejector 16, and a cooler part including a primary cooler 11, a secondary cooler 12, and a tertiary cooler 13, the primary cooler 11, the secondary cooler 12, and the tertiary cooler 13 being sequentially connected in series; one end of the two primary steam ejectors 14 is connected with the primary cooler 11, one end of the secondary steam ejectors 15 is connected with the primary cooler 11, the other end of the two primary steam ejectors is connected with the secondary cooler 12, one end of the tertiary steam ejectors 16 is connected with the secondary cooler 12, and the other end of the tertiary steam ejectors is connected with the tertiary cooler 13; the mixture of air and steam from the steam side space of the condenser is sucked by a first-stage steam ejector 14, then the high-speed steam is mixed and pressurized and discharged into a first-stage cooler 11, the steam and gas mixture is condensed into condensed water in the first-stage cooler 11, the air and a small amount of non-condensed steam are sucked by a second-stage steam ejector 15, the high-speed steam is mixed and compressed and discharged into a second-stage cooler 12, the steam and gas mixture is condensed into condensed water in the second-stage cooler 12, the air and a small amount of non-condensed steam are sucked by a third-stage steam ejector 16, the high-speed steam is mixed and compressed and discharged into a third-stage cooler 13, the steam and gas mixture is condensed in the third-stage cooler 13, the steam is cooled into condensed water, and the air is discharged into the atmosphere.
Referring to fig. 1-3, a steam header 9 and an extraction header 10 are provided on the primary steam ejector 14, a steam port 1 is provided on the steam header 9, and an extraction port 2 is provided on the extraction header 10.
Referring to fig. 1-3, the end of the primary cooler 11 and the tertiary cooler 13 far away from each other is provided with a water side seal head, the water side seal head is connected with a deflation port 3 and a water drain port 4, the primary cooler 11, the secondary cooler 12 and the tertiary cooler 13 are connected through connecting pipes, the connecting pipes are also provided with the deflation port 3 and the water drain port 4, the connecting pipes positioned on the primary cooler 11 and the secondary cooler 12 are also connected with a condensate inlet 7 and a condensate outlet 8, the bottoms of the primary cooler 11 and the tertiary cooler 13 are both connected with a condensate outlet 5, and the top of the tertiary cooler 13 is also connected with an exhaust port 6.
Referring to fig. 4, the primary steam injector 14, the secondary steam injector 15 and the tertiary steam injector 16 each include a mixing chamber 18, one side of the mixing chamber 18 is connected with a steam flange 17, a nozzle 19 is installed on the steam flange 17, the nozzle 19 is located in the mixing chamber 18, a diffuser 20 is installed at one end of the mixing chamber 18 far away from the steam flange 17, an air suction port 21 is formed at the bottom of the mixing chamber 18, and an air outlet 22 is formed at one end of the diffuser 20 far away from the mixing chamber 18; the supersonic fluid formed by the high-pressure steam flowing through the throat of the nozzle 19 forms a high vacuum area near the outlet of the nozzle 19, so that the steam-gas mixture from the condenser is pumped, the steam-gas mixture is carried by the high-speed flowing steam at the outlet of the nozzle 19 and jointly enters the diffuser 20, the speed of the steam-gas mixture is continuously reduced after the steam-gas mixture enters the diffuser 20, the pressure is gradually increased, and the steam-gas mixture is discharged into a corresponding cooler at the outlet of the diffuser 20;
referring to fig. 4-5, a fairing 23 is fixed in the mixing chamber 18, the fairing 23 is located outside the nozzle 19, the fairing 23 is composed of a cylindrical part and a conical part, circular holes 24 are uniformly formed in the side wall of the cylindrical part along the circumferential direction, and short pipes 25 are fixed in the circular holes 24.
Example two
In order to ensure that the steam can be smoothly discharged no matter whether the steam discharge amount is large or small, in the first embodiment, referring to fig. 6-7, a partition plate 1801 is fixed in a short pipe 25, a communication hole 1802 is formed in the middle position of the partition plate 1801, a first mounting frame 1804 and a second mounting frame 1806 are fixed on the side wall of the partition plate 1801 far away from a nozzle 19, a first adjusting plate 1805 is rotatably mounted on the first mounting frame 1804, and a second adjusting plate 1807 is rotatably mounted on the second mounting frame 1806; when the steam discharge amount is large, high-pressure steam enters the fairing 23 through the nozzle and is discharged through the communication hole 1802, and because the steam discharge amount is large, the angle between the first adjusting plate 1805 and the second adjusting plate 1807 is increased, so that the flow area of the high-pressure steam is increased, then the high-pressure steam is mixed with air outside the fairing and low-pressure steam, and finally, the mixture of the steam and the air is ensured to be effectively sprayed out and enter the diffuser 20, and when the steam discharge amount is smaller, the angle between the first adjusting plate 1805 and the second adjusting plate 1807 is reduced, so that the flow area of the air flow is reduced, the flow speed is increased, and the low-discharge steam is also formed into high-speed air flow and is smoothly sprayed out.
Referring to fig. 6-7, the length of the first adjustment plate 1805 is greater than the length of the second adjustment plate 1807.
Referring to fig. 6-7, a spacer 1801 is provided with a spacer 1809 on a side wall far away from the nozzle 19, a groove 1808 is formed in the spacer 1809, a spring 1803 is connected to an inner wall of the groove 1808, and one end of the spring 1803 is connected to a second adjusting plate 1807; the limiting rod 1809 limits the angle of the second adjusting plate 1807, when the second adjusting plate 1807 is inclined under the influence of air flow, the spring 1803 is stretched, when the operation is stopped, the spring 1803 is contracted, the second adjusting plate 1807 automatically resets to the vertical state, and the angle inclination of the first adjusting plate 1805 can be ensured.
The working principle of the invention is as follows: the mixture of air and steam from the steam side space of the condenser is sucked into a mixing chamber 18 of the condenser by a first-stage steam ejector 14, mixed with high-speed steam sprayed by a nozzle 19 in the mixing chamber 18, pressurized by a diffuser 20 and discharged into a first-stage cooler 11, the steam and gas mixture is condensed into condensed water in the first-stage cooler 11, the air and a small amount of non-condensed steam are sucked into the mixing chamber 18 of the condenser by a second-stage steam ejector 15, the mixture of high-speed steam is mixed and compressed and discharged into a second-stage cooler 12, the steam and gas mixture is condensed into condensed water in the second-stage cooler 12, the air and a small amount of non-condensed steam are sucked into the mixing chamber 18 of the third-stage steam ejector 16, the high-speed steam is mixed and compressed and discharged into a third-stage cooler 13, the steam and gas mixture is condensed in the third-stage cooler 13, the steam is cooled into condensed water, and the air is discharged into the atmosphere;
due to the fact that the three-stage steam jet air extraction system is arranged, the subsequent steam quantity is gradually reduced, in order to ensure the airflow velocity, when the steam discharge quantity is large, high-pressure steam enters the fairing 23 through the nozzle and is discharged through the communication hole 1802, due to the fact that the steam discharge quantity is large, the angle between the first adjusting plate 1805 and the second adjusting plate 1807 is increased, the flow area of the high-pressure steam is increased, then the high-pressure steam is mixed with air outside the fairing and low-pressure steam, finally, the mixture of the steam and the air can be effectively sprayed out and enter the diffuser 20, when the steam discharge quantity is small, the angle between the first adjusting plate 1805 and the second adjusting plate 1807 is reduced, the flow area of the airflow is reduced, the flow velocity is increased, and the low-discharge steam is formed into high-speed airflow and is sprayed out smoothly.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (3)
1. A multi-stage ejector system for a steam turbine, comprising an ejector section and a cooler section, characterized in that the ejector section comprises two primary steam ejectors (14), one secondary steam ejector (15) and one tertiary steam ejector (16), the cooler section comprises a primary cooler (11), a secondary cooler (12) and a tertiary cooler (13), and the primary cooler (11), the secondary cooler (12) and the tertiary cooler (13) are connected in series in sequence;
one end of each of the two primary steam ejectors (14) is connected with the primary cooler (11), one end of each of the secondary steam ejectors (15) is connected with the primary cooler (11), the other end of each of the two secondary steam ejectors is connected with the secondary cooler (12), one end of each of the three-stage steam ejectors (16) is connected with the secondary cooler (12), and the other end of each of the three-stage steam ejectors is connected with the three-stage cooler (13);
the primary steam ejector (14), the secondary steam ejector (15) and the tertiary steam ejector (16) comprise a mixing chamber (18), one side of the mixing chamber (18) is connected with a steam flange (17), a nozzle (19) is arranged on the steam flange (17), the nozzle (19) is positioned in the mixing chamber (18), a diffuser (20) is arranged at one end, far away from the steam flange (17), of the mixing chamber (18), an air suction port (21) is arranged at the bottom of the mixing chamber (18), and an air outlet (22) is arranged at one end, far away from the mixing chamber (18), of the diffuser (20); a fairing (23) is fixed in the mixing chamber (18), the fairing (23) is positioned outside the nozzle (19), the fairing (23) consists of a cylindrical part and a conical part, round holes (24) are uniformly formed in the side wall of the cylindrical part along the circumferential direction, and short pipes (25) are fixed in the round holes (24); a partition plate (1801) is fixed in the short pipe (25), a communication hole (1802) is formed in the middle position of the partition plate (1801), a first mounting frame (1804) and a second mounting frame (1806) are fixed on the side wall, far away from the nozzle (19), of the partition plate (1801), a first adjusting plate (1805) is rotatably mounted on the first mounting frame (1804), and a second adjusting plate (1807) is rotatably mounted on the second mounting frame (1806); the length of the first adjustment plate (1805) is greater than the length of the second adjustment plate (1807); the utility model discloses a nozzle, including baffle (1801), nozzle (19) are kept away from to baffle, be provided with gag lever post (1809) on the lateral wall that baffle (1801) kept away from nozzle (19), set up recess (1808) in gag lever post (1809), be connected with spring (1803) on the inner wall of recess (1808), second regulating plate (1807) are connected to one end of spring (1803).
2. A multi-stage ejector system for a steam turbine according to claim 1, characterized in that the primary steam ejector (14) is provided with a steam header (9) and an extraction header (10), the steam header (9) is provided with a steam port (1), and the extraction header (10) is provided with an extraction port (2).
3. The multistage steam jet air extractor system for a steam turbine according to claim 1, characterized in that one end of the primary cooler (11) and one end of the tertiary cooler (13) which are far away from each other are respectively provided with a water side sealing head, the water side sealing heads are connected with a bleed hole (3) and a water outlet (4), the primary cooler (11), the secondary cooler (12) and the tertiary cooler (13) are connected through connecting pipes, the bleed holes (3) and the water outlet (4) are also arranged on the connecting pipes, a condensate water inlet (7) and a condensate water outlet (8) are further connected on the connecting pipes of the primary cooler (11) and the secondary cooler (12), the bottoms of the primary cooler (11) and the tertiary cooler (13) are respectively connected with a condensate water outlet (5), and the tops of the tertiary cooler (13) are further connected with an exhaust port (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311799299.7A CN117469212B (en) | 2023-12-26 | 2023-12-26 | Multistage steam jet air extractor system for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311799299.7A CN117469212B (en) | 2023-12-26 | 2023-12-26 | Multistage steam jet air extractor system for steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117469212A CN117469212A (en) | 2024-01-30 |
| CN117469212B true CN117469212B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311799299.7A Active CN117469212B (en) | 2023-12-26 | 2023-12-26 | Multistage steam jet air extractor system for steam turbine |
Country Status (1)
| Country | Link |
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| CN (1) | CN117469212B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2343410Y (en) * | 1998-06-22 | 1999-10-13 | 宋义 | Low level overall unit steam-water combined jet vacuum pump |
| JP2010007658A (en) * | 2008-05-29 | 2010-01-14 | Denso Corp | Ejector and manufacturing method thereof |
| CN207035883U (en) * | 2017-04-28 | 2018-02-23 | 程琛 | A kind of multistage condenser steam injection vacuum system with back-up system |
| CN207113645U (en) * | 2017-04-28 | 2018-03-16 | 程琛 | A kind of efficient passive multistage condenser steam injection vacuum system |
| CN111140554A (en) * | 2020-01-17 | 2020-05-12 | 杭州国能汽轮工程有限公司 | Device integrating steam injection, air exhaust and steam seal cooling functions |
| CN214533092U (en) * | 2021-04-27 | 2021-10-29 | 杭州创博机械设备有限公司 | Two-pole steam jet air extractor for steam turbine |
-
2023
- 2023-12-26 CN CN202311799299.7A patent/CN117469212B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2343410Y (en) * | 1998-06-22 | 1999-10-13 | 宋义 | Low level overall unit steam-water combined jet vacuum pump |
| JP2010007658A (en) * | 2008-05-29 | 2010-01-14 | Denso Corp | Ejector and manufacturing method thereof |
| CN207035883U (en) * | 2017-04-28 | 2018-02-23 | 程琛 | A kind of multistage condenser steam injection vacuum system with back-up system |
| CN207113645U (en) * | 2017-04-28 | 2018-03-16 | 程琛 | A kind of efficient passive multistage condenser steam injection vacuum system |
| CN111140554A (en) * | 2020-01-17 | 2020-05-12 | 杭州国能汽轮工程有限公司 | Device integrating steam injection, air exhaust and steam seal cooling functions |
| CN214533092U (en) * | 2021-04-27 | 2021-10-29 | 杭州创博机械设备有限公司 | Two-pole steam jet air extractor for steam turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117469212A (en) | 2024-01-30 |
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Country or region after: Zhong Guo Address after: No. 1789 Rongli Street, Qingzhou Economic Development Zone, Weifang City, Shandong Province, 261000 Applicant after: QINGZHOU KAINENG THERMAL POWER EQUIPMENT CO.,LTD. Address before: 262500 No. 777, Yineng street, Qingzhou Economic Development Zone, Weifang City, Shandong Province Applicant before: QINGZHOU KAINENG THERMAL POWER EQUIPMENT CO.,LTD. Country or region before: Zhong Guo |