CN107218092B - Waste heat power generation equipment - Google Patents
Waste heat power generation equipment Download PDFInfo
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- CN107218092B CN107218092B CN201710399187.0A CN201710399187A CN107218092B CN 107218092 B CN107218092 B CN 107218092B CN 201710399187 A CN201710399187 A CN 201710399187A CN 107218092 B CN107218092 B CN 107218092B
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- oil
- steam
- lubricating oil
- cavity
- oil tank
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/02—Arrangements of feed-water pumps
- F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler
Abstract
The invention discloses waste heat power generation equipment, which is provided with two turbines, wherein steam can successively do work on the two turbines, and high-pressure steam on a back-extraction type turbine can be directly led out for use.
Description
Technical Field
The invention relates to a waste heat power generation device.
Background
Waste heat power generation is the technology that utilizes unnecessary heat energy conversion to the electric energy in the production process, and present waste heat power generation equipment generally includes exhaust-heat boiler, steam turbine, generator and condenser, and exhaust-heat boiler produces steam through waste heat recovery, and the steam turbine is used for turning into mechanical energy with the energy of steam, and the generator is used for turning into the mechanical energy electric energy, and the condenser is used for condensing the exhaust of steam turbine into water, then the comdenstion water is carried to exhaust-heat boiler and is heated in order to produce steam. In the existing waste heat power generation equipment, only one steam turbine is generally arranged, and the energy of steam cannot be fully converted into mechanical energy, so that the energy of the steam is wasted, and the power generation efficiency of the waste heat power generation equipment is low.
Disclosure of Invention
The invention aims to provide waste heat power generation equipment which can fully convert and utilize steam energy so as to avoid waste of the steam energy.
In order to solve the above technical problem, the present invention provides a waste heat power generation apparatus, comprising:
a waste heat boiler for generating steam through waste heat recovery;
the back-extraction type steam turbine is provided with a first steam outlet and a second steam outlet, the steam pressure of the first steam outlet is 2.4-2.7MPa, the steam pressure of the second steam outlet is 1.2-1.4MPa, and the first steam outlet is connected with a first air supply pipe;
the three-way valve is provided with a first connector, a second connector and a third connector, the first connector of the three-way valve is connected with a second steam outlet of the extraction back type steam turbine, and the second connector of the three-way valve is connected with a second air supply pipe;
the steam inlet of the condensing steam turbine is connected with the third interface of the three-way valve, and the steam outlet of the condensing steam turbine is connected with the condenser;
the oil outlet of the lubricating oil tank is respectively connected with lubricating oil inlets on the back-extraction steam turbine and the condensing steam turbine, and lubricating oil return ports on the back-extraction steam turbine and the condensing steam turbine are respectively connected with a lubricating oil return port of the lubricating oil tank;
the waste heat power generation equipment also comprises a spare oil tank, wherein the lubricating oil tank comprises an outer shell and an inner shell, an oil storage cavity is arranged in the inner shell, a vacuum cavity is arranged between the inner shell and the outer shell, the inner bottom surface of the outer shell is an inclined surface, the lowest part of the inner bottom surface of the outer shell is provided with an oil discharge port, the spare oil tank is positioned below the lubricating oil tank, a first cavity is arranged in the spare oil tank, the first cavity is a cavity, and the oil discharge port in the outer shell is connected with the first cavity through a pipeline;
the lubricating oil tank is provided with a vacuum pump which is used for pumping out air in the vacuum chamber;
the spare oil tank inside still be provided with the second cavity, the second cavity is the oil storage chamber, the second cavity is connected with the oil storage cavity in the lubricating oil tank through defeated oil pipe way, be provided with the oil filler hole that is used for pouring into lubricating oil into to the second cavity on the spare oil tank, the first cavity and the second cavity of spare oil tank are connected through the oil pumping pipeline, be provided with filter and oil pump on the oil pumping pipeline, the bottom of first cavity is provided with an oil temperature sensor, oil temperature sensor is connected with the input electricity of a controller, the output of controller is connected with the control unit on the oil pump.
After adopting the structure, compared with the prior art, the invention has the following advantages:
the waste heat power generation equipment is provided with two turbines, namely a back extraction turbine and a condensing turbine, when a first steam outlet of the back extraction turbine is closed, a second steam outlet of the back extraction turbine is opened, and a first interface and a third interface of a three-way valve are communicated, steam can successively work the two turbines, so that the utilization rate of steam energy is high, the steam energy can be fully converted into mechanical energy, the steam pressure of the first steam outlet of the back extraction turbine is high, the steam pressure of the second steam outlet is low, when other production equipment of a factory needs to use high-pressure steam, the first steam outlet of the back extraction turbine can be opened, the production equipment can introduce the steam on the first steam outlet through a first air supply pipe, when other production equipment of the factory needs to use low-pressure steam, the second steam outlet of the back extraction turbine can be opened, the first interface and the second interface of the three-way valve are communicated, the waste heat steam on the second steam outlet can be introduced through a second air supply pipe, the waste heat power generation equipment of the back extraction turbine can effectively convert the energy into the steam, the waste heat steam energy of the steam generator, the waste heat power generation equipment can be more flexibly used for the factory, and the waste heat power generation equipment can be used for the factory.
In addition, one lubricating oil tank can provide lubricating oil for two turbines simultaneously, so that the equipment structure is simplified.
Drawings
FIG. 1 is a system diagram of a cogeneration unit of the present invention;
FIG. 2 is a schematic view of a lubricating oil passage;
fig. 3 is a schematic view of the structure of the lubricating oil tank and the reserve tank.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, the waste heat power generation equipment of the present invention includes a waste heat boiler 1, a back-type steam turbine 2, a three-way valve 3, a condensing steam turbine 4, a condenser 5, a condensate pump 6, and a lubricating oil tank 7.
The waste heat boiler is used for generating steam through waste heat recovery.
This take out steam inlet of back of body formula steam turbine is connected with exhaust-heat boiler, this take out back of body formula steam turbine is provided with first steam outlet 201 and second steam outlet 202, the steam pressure of first steam outlet 201 is 2.7MPa, the steam pressure of second steam outlet 202 is 1.4MPa, first steam outlet 201 is connected with first air supply pipe 203, thus, when production facility need use steam pressure to be 2.7 MPa's steam, can introduce the steam on the first steam outlet 201 through first air supply pipe 203, just so need not dispose steam generator in addition for production facility, and the cost is saved.
This three-way valve 3 has first interface, second interface and third interface, the first interface of this three-way valve 3 is connected with the second steam outlet 202 of taking out back type steam turbine 2, the second interface of this three-way valve 3 is connected with second air supply pipe 204, the steam inlet of this condensing steam turbine 4 is connected with the third interface of three-way valve 3, the steam outlet and the condenser 5 of this condensing steam turbine 4, the delivery port of condenser 5 is connected with exhaust-heat boiler 1 through condensate pump 6, thus, when switching on the first interface of three-way valve 3 and second interface, production facility can introduce the low pressure steam on the second steam outlet 202 through second air supply pipe 204, when switching on the first interface of three-way valve 3 and third interface, the low pressure steam on the second steam outlet 202 of taking out back type steam turbine 2 enters into condensing steam turbine 4, continue to do work to the condensing steam turbine, make the conversion efficiency of steam energy higher.
The oil outlet of the lubricating oil tank 7 is respectively connected with the lubricating oil inlets of the extraction back type steam turbine 2 and the condensing steam turbine 4, and the lubricating oil return openings of the extraction back type steam turbine 2 and the condensing steam turbine 4 are respectively connected with the oil return opening of the lubricating oil tank 7, so that in the invention, one lubricating oil tank 7 can provide lubricating oil for the extraction back type steam turbine 2 and the condensing steam turbine 4, and an oil tank does not need to be configured for each steam turbine independently, thereby saving the equipment cost.
The waste heat power generation equipment also comprises a spare oil tank 8, the lubricating oil tank 7 comprises an outer shell 701 and an inner shell 702, the outer shell 701 and the inner shell 702 are connected through a connecting piece, an oil storage cavity 704 is arranged in the inner shell 702, lubricating oil is stored in the oil storage cavity 704, the lubricating oil in the oil storage cavity 704 is used for supplying the back-extraction type steam turbine 2 and the condensing steam turbine 4, a vacuum cavity 703 is arranged between the inner shell 702 and the outer shell 701, a vacuum-pumping pump 705 is arranged on the lubricating oil tank 7 and used for pumping air in the vacuum cavity 703, the inner bottom surface of the outer shell 701 is an inclined surface, the lowest part of the inner bottom surface of the outer shell 701 is provided with an oil discharge port 706, the spare oil tank 8 is positioned below the lubricating oil tank 7, a first cavity 801 is arranged in the spare oil tank 8, the oil drain port 706 of the outer shell 701 is connected with the first chamber 801 through a pipeline, so that when the lubricating oil in the oil storage chamber 704 of the lubricating oil tank 7 expands due to overhigh temperature and leaks from the inner shell 702, the outer shell 701 is arranged, the vacuum chamber 703 is arranged between the outer shell 701 and the inner shell 702, and no air exists in the vacuum chamber 703, so that the situation that the high-temperature lubricating oil leaks from the inner shell 702 and then contacts with the air to explode is avoided, and the inner bottom surface of the outer shell 701 is an inclined surface, so that the lubricating oil leaking from the inner shell 702 flows along the inner bottom surface of the outer shell 701 to flow into the oil drain port 706 for flowing into the first chamber 801 of the spare oil tank 8 through the oil drain port 706 to be stored, and the lubricating oil leaking from the inner shell 702 is collected.
The inside of the reserve oil tank 8 is further provided with a second chamber 802, the second chamber 802 is an oil storage chamber, the second chamber 802 is connected with an oil storage chamber 704 in the lubricating oil tank 7 through an oil conveying pipeline, the oil conveying pipeline is provided with an oil conveying pump 9, the reserve oil tank 8 is provided with an oil filling port 8021 for filling lubricating oil into the second chamber 802, the second chamber 802 is used for storing lubricating oil, when the amount of the lubricating oil in the oil storage chamber 704 of the lubricating oil tank 7 is insufficient, the lubricating oil in the second chamber 802 can be replenished into the oil storage chamber 704 of the lubricating oil tank 7, the first chamber 801 and the second chamber 802 of the reserve oil tank 8 are connected through an oil pumping pipeline, the oil pumping pipeline is provided with a filter 803 and an oil pump 804, the bottom of the first chamber 801 is provided with an oil temperature sensor 805, the oil temperature sensor 805 is electrically connected with an input end of a controller, an output end of the controller is connected with a control component on the oil pump 804, thus, when the high-temperature lubricating oil leaked from the oil storage chamber 704 in the oil storage chamber 704 of the lubricating oil tank 7 flows into the first chamber 801, the oil temperature sensor 805 can detect the lubricating oil, when the lubricating oil is reduced, the lubricating oil is leaked to the lubricating oil, the lubricating oil is leaked from the oil storage chamber 802, the lubricating oil can be discharged into the oil storage chamber 704, the filter 704, the lubricating oil storage chamber 802, the lubricating oil pumping chamber 704, and the lubricating oil pumping chamber 704 can be removed, thus the lubricating oil is wasted lubricating oil is removed, the lubricating oil is discharged from the filter 704, and the lubricating oil storage chamber 704, and the lubricating oil is controlled to the lubricating oil storage chamber 704, and the lubricating oil is discharged from the filter 704, thus the lubricating oil storage chamber 802, and the lubricating oil storage chamber 704, and the lubricating oil is saved in the lubricating oil is discharged into the lubricating oil storage chamber 704, and the lubricating oil storage chamber 802, thus the lubricating oil storage chamber 704.
The above description is only about the preferred embodiment of the present invention, but it should not be understood as limiting the claims, and the present invention may be modified in other structures, not limited to the above structures. In general, all changes which come within the scope of the invention as defined by the independent claims are intended to be embraced therein.
Claims (1)
1. A cogeneration apparatus, comprising:
a waste heat boiler (1) for generating steam by waste heat recovery;
the back-extraction type steam turbine (2) is provided with a first steam outlet (201) and a second steam outlet (202), the steam pressure of the first steam outlet (201) is 2.4-2.7MPa, the steam pressure of the second steam outlet (202) is 1.2-1.4MPa, and the first steam outlet (201) is connected with a first air supply pipe (203);
the three-way valve (3) is provided with a first connector, a second connector and a third connector, the first connector of the three-way valve is connected with a second steam outlet of the back extraction type steam turbine, and the second connector of the three-way valve is connected with a second air supply pipe (204);
the steam inlet of the condensing turbine (4) is connected with the third interface of the three-way valve (3), and the steam outlet of the condensing turbine is connected with the condenser (5);
the oil outlet of the lubricating oil tank is respectively connected with lubricating oil inlets on the back-extraction steam turbine and the condensing steam turbine, and lubricating oil return ports on the back-extraction steam turbine and the condensing steam turbine are respectively connected with a lubricating oil return port of the lubricating oil tank;
the waste heat power generation equipment further comprises a spare oil tank (8), the lubricating oil tank (7) comprises an outer shell (701) and an inner shell (702), an oil storage chamber (704) is arranged in the inner shell (702), a vacuum chamber (703) is arranged between the inner shell (702) and the outer shell (701), the inner bottom surface of the outer shell (701) is an inclined surface, the lowest position of the inner bottom surface of the outer shell (701) is provided with an oil discharge port (706), the spare oil tank (8) is positioned below the lubricating oil tank (7), a first chamber (801) is arranged in the spare oil tank (8), the first chamber (801) is a cavity, and the oil discharge port (706) in the outer shell (701) is connected with the first chamber (801) through a pipeline;
the lubricating oil tank (7) is provided with a vacuum pumping pump (705), and the vacuum pumping pump (705) is used for pumping air in the vacuum chamber (703);
the oil-saving oil pump is characterized in that a second cavity (802) is further arranged inside the spare oil tank (8), the second cavity (802) is an oil storage cavity, the second cavity (802) is connected with an oil storage cavity (704) in the lubricating oil tank (7) through an oil conveying pipeline, an oil filling port (8021) used for filling lubricating oil into the second cavity (802) is arranged on the spare oil tank (8), a first cavity (801) and a second cavity (802) of the spare oil tank (8) are connected through an oil pumping pipeline, a filter (803) and an oil pump (804) are arranged on the oil pumping pipeline, an oil temperature sensor (805) is arranged at the bottom of the first cavity (801), the oil temperature sensor (805) is electrically connected with the input end of a controller, and the output end of the controller is connected with a control component on the oil pump (804).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710399187.0A CN107218092B (en) | 2017-05-31 | 2017-05-31 | Waste heat power generation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710399187.0A CN107218092B (en) | 2017-05-31 | 2017-05-31 | Waste heat power generation equipment |
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| Publication Number | Publication Date |
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| CN107218092A CN107218092A (en) | 2017-09-29 |
| CN107218092B true CN107218092B (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710399187.0A Active CN107218092B (en) | 2017-05-31 | 2017-05-31 | Waste heat power generation equipment |
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| CN (1) | CN107218092B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202228140U (en) * | 2011-10-18 | 2012-05-23 | 高现仁 | Comprehensive utilization system of waste heat of flue gas of coke oven |
| CN202254899U (en) * | 2011-10-31 | 2012-05-30 | 河南省德盛瑞余热发电设备有限公司 | Waste heat generating equipment system of carbon production line |
| CN103836604A (en) * | 2014-03-03 | 2014-06-04 | 上海宝钢节能环保技术有限公司 | Novel waste heat recovery combined heating and power system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014006677A1 (en) * | 2012-07-02 | 2014-01-09 | 川崎重工業株式会社 | Exhaust heat recovery power generation plant for sintering facility |
-
2017
- 2017-05-31 CN CN201710399187.0A patent/CN107218092B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202228140U (en) * | 2011-10-18 | 2012-05-23 | 高现仁 | Comprehensive utilization system of waste heat of flue gas of coke oven |
| CN202254899U (en) * | 2011-10-31 | 2012-05-30 | 河南省德盛瑞余热发电设备有限公司 | Waste heat generating equipment system of carbon production line |
| CN103836604A (en) * | 2014-03-03 | 2014-06-04 | 上海宝钢节能环保技术有限公司 | Novel waste heat recovery combined heating and power system |
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| Publication number | Publication date |
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| CN107218092A (en) | 2017-09-29 |
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