CN104912765A - Steam-driven pump system of distributed energy station - Google Patents
Steam-driven pump system of distributed energy station Download PDFInfo
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- CN104912765A CN104912765A CN201510314394.2A CN201510314394A CN104912765A CN 104912765 A CN104912765 A CN 104912765A CN 201510314394 A CN201510314394 A CN 201510314394A CN 104912765 A CN104912765 A CN 104912765A
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Abstract
The invention discloses a steam-driven pump system of a distributed energy station. The steam-driven pump system comprises a steam source, a steam turbine, a steam-driven water pump, an electric water pump, a main water inlet pipe and a main water outlet pipe, wherein the steam source is communicated with the steam turbine, the steam turbine is connected with the steam-driven water pump, the steam-driven water pump is communicated with the main water inlet pipe and the main water outlet pipe, and the electric water pump is communicated with the main water inlet pipe and the main water outlet pipe. The steam-driven pump system has the advantages that part of electric pumps in the distributed energy station is changed into the steam-driven pump, the steam-driven pump and the electric pumps are organically combined, can operate parallelly and are spare to each other; by the system, plant power consumption can be effectively reduced, advantage complement of the steam-driven pump and the electric pumps is achieved, and the system can operate safely, economically and stably; the problem that high-temperature and high-pressure steam cannot be supplied directly is solved by the system, a temperature and pressure reduction device is replaced by the steam-driven pump, energy waste is reduced greatly, and energy utilization rate is increased.
Description
Technical field
The present invention relates to pneumatic pump system, particularly relate to a kind of distributed busbar protection pneumatic pump system.
Background technique
In distributed busbar protection system, usually need to arrange multiple stage feed water pump, circulating cooling water pump, circulating frozen water pump and hot water circulating pump.These water pumps often adopt motor-drive pump, because motor-drive pump institute power consumption is comparatively large, therefore cause the plant consumption of distributed busbar protection relatively large, cause the electric power exported to reduce, have impact on the economic benefit of distributed busbar protection.On the other hand, the initial steam of some distributed busbar protection unit, draw gas or exhaust steam pressure temperature higher, the parameter requirements of steam heat user cannot be met, in order to ensure the parameter request of external steam supply, often adopt temperature-decreased pressure reducer to carry out outer confession again by after steam temperature reducing and pressure reducing, which results in the waste of the energy.As can be seen here, the energy waste reducing distributed busbar protection becomes problem demanding prompt solution.
Summary of the invention
The object of the invention is to, a kind of distributed busbar protection pneumatic pump system is provided, change the part motor-drive pump in distributed busbar protection into pneumatic pump, directly utilize steam driven feed water pump, circulating cooling water pump, circulating frozen water pump or hot water circulating pump, reduce the consumption of power plant's electricity consumption, cut operating costs, improve entire system operational efficiency, improve the economic benefit of distributed busbar protection, simultaneously, effectively utilize the parameter that high temperature and high pressure steam pressure and temperature reducing needs to heat supply by steam turbine, for meeting the demand of user.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of distributed busbar protection pneumatic pump system, comprise vapour source, steam turbine, steam-operating water pump, electric water pump, water inlet mother pipe and main water outlet pipe, vapour source is connected with steam turbine, steam turbine is connected with steam-operating water pump, steam-operating water pump is connected with the female pipe of water inlet, steam-operating water pump is connected with main water outlet pipe, and electric water pump is connected with the female pipe of water inlet, and electric water pump is connected with main water outlet pipe.Water pump in distributed busbar protection all adopts electric water pump mostly, this energy source station pneumatic pump system replaces part electric water pump with steam-operating water pump, the high temperature and high pressure steam that produced by energy source station drives steam-operating water pump, thus decreases the electric energy loss that original electric water pump causes.And by arranging steam-operating water pump, can replace the temperature-decreased pressure reducer of traditional distributed busbar protection, high temperature and high pressure steam is consumed partial heat energy by steam-operating water pump, pressure and temp is down in the scope that user can use.
In aforesaid distributed busbar protection pneumatic pump system, also comprise temperature-decreased pressure reducer and external steam-supplying system, temperature-decreased pressure reducer is connected with vapour source, and external steam-supplying system is connected with temperature-decreased pressure reducer.Under normal operation, by steam-operating water pump to high temperature and high pressure steam decrease temperature and pressure, and temperature-decreased pressure reducer is as subsequent use, and when steam-operating water pump breaks down, temperature-decreased pressure reducer runs.
In aforesaid distributed busbar protection pneumatic pump system, temperature-decreased pressure reducer is connected with steam-operating water pump.
In aforesaid distributed busbar protection pneumatic pump system, steam turbine is simple turbine or multistage turbine.
In aforesaid distributed busbar protection pneumatic pump system, steam turbine is back pressure turbine.
Compared with prior art, the present invention changes the part motor-drive pump in distributed busbar protection into pneumatic pump, and pneumatic pump and motor-drive pump are organically combined, can paired running, and for subsequent use each other.The utilization of this system can save station service effectively, and pneumatic pump and motor-drive pump are had complementary advantages, and learns from other's strong points to offset one's weaknesses, and runs with making the safer economic stability of system.Meanwhile, the utilization of this system, also solving high temperature and high pressure steam can not the problem of direct-furnish, instead of temperature-decreased pressure reducer, greatly reduce the waste of the energy, improve efficiency of energy utilization with pneumatic pump.Native system can continuous high-efficient stable operation throughout the year, thus greatly improve the whole economic efficiency of project.
Accompanying drawing explanation
Fig. 1 is the system schematic of a kind of embodiment of the present invention.
Reference character: 1-vapour source, 2-steam turbine, 3-temperature-decreased pressure reducer, other steam-supplying systems of 4-, the external steam-supplying system of 5-, the female pipe of 6-water inlet, 7-main water outlet pipe, 8-electric water pump, 9-steam-operating water pump.
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Embodiment
Embodiments of the invention 1: as shown in Figure 1, a kind of distributed busbar protection pneumatic pump system, comprise vapour source 1, steam turbine 2, steam-operating water pump 9, electric water pump 8, intake female pipe 6 and main water outlet pipe 7, vapour source 1 is connected with steam turbine 2, steam turbine 2 is connected with steam-operating water pump 9, and steam-operating water pump 9 is connected with the female pipe 6 of water inlet, and steam-operating water pump 9 is connected with main water outlet pipe 7, electric water pump 8 is connected with the female pipe 6 of water inlet, and electric water pump 8 is connected with main water outlet pipe 7.
Steam turbine 2 is simple turbine 2 or multistage turbine 2.
Steam turbine 2 is back pressure turbines 2.
Also comprise temperature-decreased pressure reducer 3 and external steam-supplying system 5, temperature-decreased pressure reducer 3 is connected with vapour source 1, and external steam-supplying system 5 is connected with temperature-decreased pressure reducer 3.
Temperature-decreased pressure reducer 3 is connected with steam-operating water pump 9.
The working principle of a kind of embodiment of the present invention: the present invention changes multiple stage electric water pump in distributed busbar protection 8 (as feed water pump, circulating cooling water pump, circulating frozen water pump and hot water circulating pump) wherein one or several into steam-operating water pump 9, utilize the steam driven steam-operating water pump 9 of elevated pressures temperature, for boiler provide feedwater or for recirculated cooling water, chilled water, hot water boosting play circulation, the steam after the pressure and temperature reducing then utilizing steam-operating water pump 9 to discharge carries out heat supply.This utilization not only decreases high-quality power consumption within the specific limits, can also play effects such as ensureing security of system.
During normal operation, the high temperature and high pressure steam in vapour source 1 such as to draw gas through the steam turbine 2 of back pressure type from initial steam, extracted steam from turbine or turbine back pressure, pushing turbine 2 rotates acting, thus drive steam-operating water pump 9 to run, confess from after the water boosting of the female pipe 6 of water inlet through main water outlet pipe 6, and the water outlet after boosting with electric water pump 8 mixes and sends.The steam discharge of the steam turbine 2 of back pressure type is sent by external steam-supplying system 5, can also set up other steam-supplying systems 4 according to different demands.Temperature-decreased pressure reducer 3 is in hot stand-by duty time flat, and when steam turbine 2 cannot run because of fault, temperature-decreased pressure reducer 3 puts into operation, replaces steam turbine 2 to carry out heat supply.Other heating systems 4 and steam turbine 2, temperature-decreased pressure reducer 3 paired running, combine and carry out heat supply.
Claims (5)
1. a distributed busbar protection pneumatic pump system, it is characterized in that, comprise vapour source (1), steam turbine (2), steam-operating water pump (9), electric water pump (8), the female pipe of water inlet (6) and main water outlet pipe (7), vapour source (1) is connected with steam turbine (2), steam turbine (2) is connected with steam-operating water pump (9), steam-operating water pump (9) is connected with the female pipe (6) of water inlet, steam-operating water pump (9) is connected with main water outlet pipe (7), electric water pump (8) is connected with the female pipe (6) of water inlet, electric water pump (8) is connected with main water outlet pipe (7).
2. distributed busbar protection pneumatic pump system according to claim 1, it is characterized in that, also comprise temperature-decreased pressure reducer (3) and external steam-supplying system (5), temperature-decreased pressure reducer (3) is connected with vapour source (1), and external steam-supplying system (5) is connected with temperature-decreased pressure reducer (3).
3. distributed busbar protection pneumatic pump system according to claim 2, is characterized in that, temperature-decreased pressure reducer (3) is connected with steam-operating water pump (9).
4. the distributed busbar protection pneumatic pump system according to any one of claims 1 to 3, is characterized in that, steam turbine (2) is simple turbine or multistage turbine.
5. the distributed busbar protection pneumatic pump system according to any one of claims 1 to 3, is characterized in that, steam turbine (2) is back pressure turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314394.2A CN104912765A (en) | 2015-06-10 | 2015-06-10 | Steam-driven pump system of distributed energy station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510314394.2A CN104912765A (en) | 2015-06-10 | 2015-06-10 | Steam-driven pump system of distributed energy station |
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| CN104912765A true CN104912765A (en) | 2015-09-16 |
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| CN201510314394.2A Pending CN104912765A (en) | 2015-06-10 | 2015-06-10 | Steam-driven pump system of distributed energy station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028999A (en) * | 2018-07-19 | 2018-12-18 | 国家能源投资集团有限责任公司 | Boiler circuit |
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| CN1292474A (en) * | 2000-10-15 | 2001-04-25 | 张力 | Heat supply method and system for comprehensively utilizing steam energy of thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109028999A (en) * | 2018-07-19 | 2018-12-18 | 国家能源投资集团有限责任公司 | Boiler circuit |
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| CB03 | Change of inventor or designer information |
Inventor after: Yu Xiuyan Inventor after: Jue Yawei Inventor after: Zhao Shengguo Inventor after: Xu Haizhou Inventor after: Zhao Zhiyuan Inventor after: Chang Nana Inventor after: Li Zhen Inventor before: Yu Xiuyan Inventor before: Xu Haizhou Inventor before: Zhao Zhiyuan |
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Address after: 100160 Beijing, Fengtai District Automobile Museum Road, No. 6, Ying Kun century A block, floor 11 Applicant after: CHINA HUADIAN ENGINEERING CO., LTD. Applicant after: Huadian Distributed Energy Engineering & Technology Co., Ltd. Address before: 100160 Beijing, Fengtai District Automobile Museum Road, No. 6, Ying Kun century A block, floor 11 Applicant before: China Huadian Engineering (Group) Co., Ltd. Applicant before: Huadian Distributed Energy Engineering & Technology Co., Ltd. |
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Application publication date: 20150916 |