CN104763480B - There is organic Rankine bottoming cycle electric turbine group and the sealing control method of dynamic oil film sealing system - Google Patents
There is organic Rankine bottoming cycle electric turbine group and the sealing control method of dynamic oil film sealing system Download PDFInfo
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- CN104763480B CN104763480B CN201510139546.XA CN201510139546A CN104763480B CN 104763480 B CN104763480 B CN 104763480B CN 201510139546 A CN201510139546 A CN 201510139546A CN 104763480 B CN104763480 B CN 104763480B
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Abstract
The present invention relates to a kind of organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system and sealing control method.Steam Turbine includes: vaporizer, steam turbine and dynamic oil film sealing system；This sealing system includes controller, fuel tank, oil pump and for sealing the connecting tube of control and evaporator exit pressure transmitter and 3 pressure transmitters being positioned on steam turbine；Controller is connected with 4 pressure transmitters respectively by controller input pipe；Controller is also connected with oil pump；This oil pump is connected with three pressure transmitters being positioned on steam turbine respectively by sealing oil pipe.Sealing control method includes that pressure transmitter output sealing signal, controller receive sealing signal, controller instruction oil pump regulation pressure, dynamic oil film seal process.The method have the advantages that: realize the zero leakage of organic working medium steam turbine, prevent working medium from leaking the economic loss caused on a large scale, make organic Rankine bottoming cycle electric turbine group efficiently, economical, reliably and securely run.
Description
Technical field
The present invention relates to a kind of organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system and sealing control method, belong to Rankine cycle electric turbine technical field.
Background technology
Organic Rankine bottoming cycle (be called for short ORC) generation technology with low-boiling-point organic compounds such as halogenated hydrocarbons (CFCs), HCFC (HCFCs), hydrogen fluorohydrocarbon (HFCs), alkane (HCs) as working medium, various types of low-grade energies such as recoverable industrial exhaust heat, solar energy, geothermal energy, biomass energy, ocean thermal energy and LNG cold energy are used for generating electricity, and it has the advantages such as simple in construction, efficiency height, environmental friendliness and load performance are strong.At present, there is organic working medium Turbine seal leakage problem in this technology.
Summary of the invention
The present invention its object is to: overcomes the sealing leak problem that prior art organic working medium steam turbine exists, a kind of organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system and sealing control method are provided, realize the zero leakage of organic working medium steam turbine, prevent working medium from leaking the economic loss caused on a large scale, make organic Rankine bottoming cycle electric turbine group efficiently, economical, reliably and securely run.
The technical scheme of the organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system of the present invention is:
A kind of organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system, including vaporizer, steam turbine and dynamic oil film sealing system；Described dynamic oil film sealing system includes controller, fuel tank, oil pump and for sealing connecting tube and several pressure transmitters of control；Described pressure transmitter includes evaporator exit pressure transmitter, be positioned at steam turbine before steam turbine the first pressure transmitter at regulating valve rod, be positioned on steam turbine axle head stationary ring steam turbine the second pressure transmitter being right against at helicla flute groove root and be positioned at steam turbine the 3rd pressure transmitter of Turbine seal top of chamber；Controller side is connected with evaporator exit pressure transmitter and steam turbine the first pressure transmitter respectively by controller input pipe, and another is then connected with steam turbine the second pressure transmitter and steam turbine the 3rd pressure transmitter respectively by controller input pipe；Controller is connected with oil pump also by controller outlet tube；This oil pump is connected with steam turbine the first pressure transmitter, steam turbine the second pressure transmitter and steam turbine the 3rd pressure transmitter respectively by sealing oil pipe.
Further technical scheme is:
The described organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system, the model specification of its oil pump is JRDB0.55, produces selected from factory of Taizhou City Jie Rui Machinery Manufacturing Co., Ltd., and operating pressure is 0.5mpa～2mpa.
The described organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system, the model specification of its pressure transmitter is 308F I ERI, produces selected from company of Shanghai instrument (group) factory, and operating pressure is 0～2mpa.
The described organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system, the model specification of its controller is S314, produces selected from factory of Siemens.
The technical scheme of the organic Rankine bottoming cycle electric turbine group sealing control method of the present invention is: it comprises the steps:
A, pressure transmitter output sealing signal: exported the command signal of seal pressure variation tendency to controller by evaporator exit pressure transmitter and steam turbine first, second, third pressure transmitter；
B, controller receive sealing signal: accepted the command signal of the seal pressure variation tendency transmitted from the via controller input pipe of pressure transmitter by controller；
C, controller instruction oil pump regulation pressure: controller makes it equal with the pressure in annular seal space according to the command signal of seal pressure variation tendency, and instruction oil pump exports revised seal pressure oil；
D, dynamic oil film seal: revised seal pressure oil reaches steam turbine first, second, third pressure transmitter respectively by sealing oil pipe, so that sealing zero leakage, it is achieved steam turbine dynamic oil film seals.
The operation principle of the present invention is as follows
Seal Oil pipeline: Seal Oil passes through oil pump, supplies the Seal Oil of fuel tank to steam turbine at regulating valve rod sealing, at the bearing seal of steam turbine front end and at steam turbine rear end bearing sealing respectively.
Controller inputs: evaporator exit pressure transmitter, steam turbine the first pressure transmitter (before steam turbine pressure transmitter) at regulating valve rod, steam turbine the second pressure transmitter (being right against the pressure transmitter at helicla flute groove root on steam turbine axle head stationary ring), four pressure datas of steam turbine the 3rd pressure transmitter (pressure transmitter at annular seal space top) transmit to controller.
Controller exports: controller output signal is directly transferred to oil pump.
Four pressure datas inputted by controller, the trend output command signal changed according to pressure by controller, the pressure of oil pump is regulated further according to this signal, affected at Turbine seal by the change of oil pump 7 pressure and pressure at regulating valve rod sealing before steam turbine, make it equal with the pressure in annular seal space, it is achieved to seal zero leakage.
The significant beneficial effect of the present invention is mainly: achieve the zero leakage of organic working medium steam turbine, it is therefore prevented that working medium leaks the economic loss caused on a large scale, make organic Rankine bottoming cycle electric turbine group efficiently, economical, reliably and securely run.
Accompanying drawing explanation
Fig. 1 is the organic Rankine bottoming cycle electric turbine group structural representation with dynamic oil film sealing system of the present invention.
Fig. 2 is the schematic flow sheet of the organic Rankine bottoming cycle electric turbine group sealing control method of the present invention.
In figure: 1-vaporizer, 2-evaporator exit pressure transmitter, 3-steam turbine the first pressure transmitter (before steam turbine pressure transmitter) at regulating valve rod, 4-turbine governor valve, 5-controller, 5.1 controller input pipes, 5.2 controller input pipes, 5.3 controller outlet tubes, 5.4 seal oil pipe, 6-fuel tank, 7-oil pump, 8-steam turbine the second pressure transmitter (is right against the pressure transmitter at helicla flute groove root) on steam turbine axle head stationary ring, 9-steam turbine the 3rd pressure transmitter (pressure transmitter at annular seal space top), 10-steam turbine, 10.1 steam turbine axle head, 10.2 Turbine seal top of chamber, 11-electromotor.
Detailed description of the invention
Organic Rankine bottoming cycle electric turbine group and the sealing control method to the present invention in conjunction with the accompanying drawings and embodiments with dynamic oil film sealing system are described further as follows:
As it is shown in figure 1, be an embodiment of organic Rankine bottoming cycle electric turbine group of the present invention.A kind of organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system, including vaporizer 1, steam turbine 10 and dynamic oil film sealing system；Described dynamic oil film sealing system includes controller 5, fuel tank 6, oil pump 7 and for sealing connecting tube and several pressure transmitters of control；Described pressure transmitter includes evaporator exit pressure transmitter 2, be positioned at steam turbine before regulate steam turbine the first pressure transmitter 3 at valve 4 valve rod, be positioned on steam turbine axle head 10.1 stationary ring steam turbine the second pressure transmitter 8 being right against at helicla flute groove root and be positioned at steam turbine the 3rd pressure transmitter 9 of Turbine seal top of chamber 10.2；Controller 5 side is connected with evaporator exit pressure transmitter 2 and steam turbine the first pressure transmitter 3 respectively by controller input pipe 5.1, and another is then connected with steam turbine the second pressure transmitter 8 and steam turbine the 3rd pressure transmitter 9 respectively by controller input pipe 5.2；Controller 5 is connected with oil pump 7 also by controller outlet tube 5.3；This oil pump 7 is connected with steam turbine the first pressure transmitter 3, steam turbine the second pressure transmitter 8 and steam turbine the 3rd pressure transmitter 9 respectively by sealing oil pipe 5.4；Fuel tank 6 is connected with oil pump 7；Evaporator exit pressure transmitter 2, steam turbine the first pressure transmitter 3, steam turbine the second pressure transmitter 8 and steam turbine the 3rd pressure transmitter 9 are connected with controller 5 also by electric wire, and this controller 5 is connected with oil pump 7 by electric wire.The model specification of described oil pump 7 is JRDB0.55, produces selected from factory of Taizhou City Jie Rui Machinery Manufacturing Co., Ltd., and operating pressure is 0.5mpa～2mpa.The model specification of described pressure transmitter 3 is 308F I ERI, produces selected from factory of Shanghai instrument (group) company, and operating pressure is 0～2mpa.The model specification of described controller 5 is S314
, produce selected from factory of Siemens.
As in figure 2 it is shown, be an embodiment of the organic Rankine bottoming cycle electric turbine group sealing control method of the present invention.The organic Rankine bottoming cycle electric turbine group sealing control method of the present invention it comprise the steps:
A, pressure transmitter output sealing signal: exported the command signal of seal pressure variation tendency by evaporator exit pressure transmitter 2 and steam turbine first, second, third pressure transmitter 3,8,9 to controller 5；
B, controller receive sealing signal: accepted the command signal of the seal pressure variation tendency transmitted from the via controller input pipe 5.1,5.2 of pressure transmitter by controller 5；
C, controller instruction oil pump regulation pressure: controller 5 makes it equal with the pressure in annular seal space according to the command signal of seal pressure variation tendency, and instruction oil pump 7 exports revised seal pressure oil；
D, dynamic oil film seal: revised seal pressure oil reaches steam turbine first, second, third pressure transmitter 3,8,9 respectively by sealing oil pipe 5.4, so that sealing zero leakage, it is achieved steam turbine 10 dynamic oil film seals.
The claims in the present invention protection domain is not limited to above-described embodiment.
Claims (5)
1. an organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system, it is characterised in that include vaporizer (1), steam turbine (10) and dynamic oil film sealing system；Described dynamic oil film sealing system includes controller (5), fuel tank (6), oil pump (7) and is used for sealing connecting tube and several pressure transmitters of control；Described pressure transmitter includes evaporator exit pressure transmitter (2), be positioned at steam turbine before regulate the steam turbine the first pressure transmitter (3) at valve (4) valve rod, be positioned on steam turbine axle head (10.1) stationary ring the steam turbine the second pressure transmitter (8) being right against at helicla flute groove root and be positioned at the steam turbine the 3rd pressure transmitter (9) of Turbine seal top of chamber (10.2)；Controller (5) side is connected with evaporator exit pressure transmitter (2) and steam turbine the first pressure transmitter (3) respectively by controller input pipe (5.1), and opposite side is connected with steam turbine the second pressure transmitter (8) and steam turbine the 3rd pressure transmitter (9) respectively by controller input pipe (5.2)；Controller (5) is connected with oil pump (7) also by controller outlet tube (5.3)；This oil pump (7) is connected with steam turbine the first pressure transmitter (3), steam turbine the second pressure transmitter (8) and steam turbine the 3rd pressure transmitter (9) respectively by sealing oil pipe (5.4)；Evaporator exit pressure transmitter (2), steam turbine the first pressure transmitter (3), steam turbine the second pressure transmitter (8) and steam turbine the 3rd pressure transmitter (9) are connected with controller (5) also by electric wire, and this controller (5) is connected with oil pump (7) by electric wire.
The organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system the most according to claim 1, it is characterized in that, the model specification of described oil pump (7) is JRDB0.55, produces selected from factory of Taizhou City Jie Rui Machinery Manufacturing Co., Ltd., and operating pressure is 0.5mpa～2mpa.
The organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system the most according to claim 1, it is characterized in that, the model specification of described pressure transmitter (3) is 308F I ERI, produces selected from company of Shanghai instrument (group) factory, and operating pressure is 0～2mpa.
The organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system the most according to claim 1, it is characterised in that the model specification of described controller (5) is S314, produces selected from factory of Siemens.
5. the organic Rankine bottoming cycle electric turbine group sealing control method described in a claim 1, it is characterised in that comprise the steps:
A, pressure transmitter output sealing signal: exported the command signal of seal pressure variation tendency to controller (5) by evaporator exit pressure transmitter (2) and steam turbine first, second, third pressure transmitter (3,8,9)；
B, controller receive sealing signal: accepted the command signal of the seal pressure variation tendency transmitted from the via controller input pipe (5.1,5.2) of pressure transmitter by controller (5)；
C, controller instruction oil pump regulation pressure: controller (5) makes it equal with the pressure in annular seal space according to the command signal of seal pressure variation tendency, and instruction oil pump (7) exports revised seal pressure oil；
D, dynamic oil film seal: revised seal pressure oil reaches steam turbine first, second, third pressure transmitter (3,8,9) respectively by sealing oil pipe (5.4), so that sealing zero leakage, it is achieved steam turbine (10) dynamic oil film seals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510139546.XA CN104763480B (en) | 2015-03-29 | 2015-03-29 | There is organic Rankine bottoming cycle electric turbine group and the sealing control method of dynamic oil film sealing system |
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| CN201510139546.XA CN104763480B (en) | 2015-03-29 | 2015-03-29 | There is organic Rankine bottoming cycle electric turbine group and the sealing control method of dynamic oil film sealing system |
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| CN104763480A CN104763480A (en) | 2015-07-08 |
| CN104763480B true CN104763480B (en) | 2016-08-17 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2120038C1 (en) * | 1996-09-25 | 1998-10-10 | Шаргородский Виктор Семенович | System of end seals for steam turbine |
| CN1269872A (en) * | 1998-03-13 | 2000-10-11 | 株式会社日立制作所 | Centrifugal compressor and shaft seal used thereof |
| CN203547804U (en) * | 2013-11-12 | 2014-04-16 | 万逵芳 | Airtight turbine shaft seal system |
| CN204552838U (en) * | 2015-03-29 | 2015-08-12 | 武汉长海高新技术有限公司 | A kind of organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5928726B2 (en) * | 1979-04-23 | 1984-07-16 | 三井造船株式会社 | Turbine shaft seal oil separation method |
| JPS58200004A (en) * | 1982-05-19 | 1983-11-21 | Hitachi Ltd | System for processing leaked oil at mechanical seal |
-
2015
- 2015-03-29 CN CN201510139546.XA patent/CN104763480B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2120038C1 (en) * | 1996-09-25 | 1998-10-10 | Шаргородский Виктор Семенович | System of end seals for steam turbine |
| CN1269872A (en) * | 1998-03-13 | 2000-10-11 | 株式会社日立制作所 | Centrifugal compressor and shaft seal used thereof |
| CN203547804U (en) * | 2013-11-12 | 2014-04-16 | 万逵芳 | Airtight turbine shaft seal system |
| CN204552838U (en) * | 2015-03-29 | 2015-08-12 | 武汉长海高新技术有限公司 | A kind of organic Rankine bottoming cycle electric turbine group with dynamic oil film sealing system |
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| CN104763480A (en) | 2015-07-08 |
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