CN205860801U - direct air cooling system with peak cooling device - Google Patents
direct air cooling system with peak cooling device Download PDFInfo
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- CN205860801U CN205860801U CN201620796760.2U CN201620796760U CN205860801U CN 205860801 U CN205860801 U CN 205860801U CN 201620796760 U CN201620796760 U CN 201620796760U CN 205860801 U CN205860801 U CN 205860801U
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- water
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- air cooling
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
This utility model relates to the direct air cooling system of a kind of band peak cooling device, for the condensation process of Steam Turbine in Fire Power Plant steam discharge.Including steam exhaust device (1), blow-off line (2), air cooling tubes condenser (3) and peak cooling device, it is characterized in that: described peak cooling device includes water-cooled condenser heat exchanger (12), cooling tower (11) and circulating water pipeline (10), water-cooled condenser heat exchanger (12) is arranged in steam exhaust device (1), making steam exhaust device have condensing function, water-cooled condenser heat exchanger (12) is connected by circulating water pipeline (10) with cooling tower (11)；Described system is additionally arranged condensate tank (7) and deposits condensation water, and air cooling tubes condenser (3) is connected by the first condensing water conduit (4) with condensate tank (7), and steam exhaust device (1) is connected by the second condensing water conduit (8) with condensate tank (7).Its advantage is: reduce exhaust steam pressure drop in steam exhaust device and blow-off line, eliminates shunt conduit and the valve of peak cooling device, reduces the cost of investment of system.
Description
Technical field
This utility model relates to the direct air cooling system of a kind of band peak cooling device, arranges for Steam Turbine in Fire Power Plant
The condensation process of vapour.
Background technology
During thermal power generation, the exhaust steam discharged from turbine low pressure cylinder needs to be condensed into water and sends boiler circulation again back to and make
With.In order to save water resource, many power plant use direct air cooling system to condense exhaust steam.
At present, direct air cooling system is made up of steam exhaust device, blow-off line, air cooling tubes condenser and condensing water conduit etc..Come
After the exhaust steam of turbine low pressure cylinder enters steam exhaust device, import air cooling tubes condenser through blow-off line and be condensed into water, return again
In steam exhaust device.Steam exhaust device has condensation water storage function, and the condensation water in steam exhaust device is sent air cooling system by condensate pump
System.Problem, system is raised in order to solve the back pressure that summer high temperature period air cooling tubes condenser heat exchange efficiency declines, undercapacity causes
Also configure that peak cooling device.Peak cooling device is mainly made up of water-cooled condenser and cooling tower, in parallel with air cooling tubes condenser.
Prior art is to increase pipeline and valve connection water-cooled condenser on blow-off line, shunts the exhaust steam through steam exhaust device
Enter water-cooled condenser, make part exhaust steam condense into water in water-cooled condenser, then also return in steam exhaust device, enter water
The recirculated water of cold condenser temperature while exhaust steam condenses raises, then is admitted to cooling tower cooling.Described water-cooled condenser
Including housing and water-cooled condenser heat exchanger, water-cooled condenser heat exchanger is arranged in enclosure interior.
The direct air cooling system Shortcomings of existing band peak cooling device:
1) setting up the pipeline exhaust steam importing water-cooled condenser and valve on blow-off line, cost of investment is higher；
2), before entering water-cooled condenser, the exhaust steam of steam turbine produces bigger pressure when steam exhaust device and part blow-off line
Fall, decreases the heat transfer temperature difference of air cooling tubes condenser and water-cooled condenser, also reduces exerting oneself of direct air cooling system.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of the direct air cooling system of above-mentioned band peak cooling device, it is provided that one
The direct air cooling system of a kind of band peak cooling device that kind of low cost, exhaust steam pressure drop are little.
The purpose of this utility model is achieved in that the direct air cooling system of a kind of band peak cooling device, including row
Vapour device, blow-off line, air cooling tubes condenser and peak cooling device, it is characterised in that: described peak cooling device includes water-cooled
Condenser heat exchanger, cooling tower and circulating water pipeline, water-cooled condenser heat exchanger is arranged in steam exhaust device, and circulating water pipeline will
Water-cooled condenser heat exchanger is connected with cooling tower；Described system is additionally arranged condensate tank, and the first condensing water conduit is by air cooling condensing
Device is connected with condensate tank, and steam exhaust device is connected by the second condensing water conduit with condensate tank.
The direct air cooling system of this utility model a kind of band peak cooling device, described cooling tower is the air cooling tower of dry type,
Or the enclosed wet cooling tower of wet type, or the open cooling tower of wet type.
The direct air cooling system of this utility model a kind of band spike cooling, major advantage is:
(1) water-cooled condenser heat exchanger is arranged in steam exhaust device, eliminates the housing of water-cooled condenser, also eliminates use
In exhaust steam being imported pipeline and the valve of water-cooled condenser, the cost of whole system can be reduced；
(2) water-cooled condenser heat exchanger is arranged in steam exhaust device, makes part exhaust steam be condensed in steam exhaust device,
Decrease by the exhaust steam flow in steam exhaust device and blow-off line, make the total pressure drop of system reduce, add Direct Air-Cooled
The heat transfer temperature difference of system and exerting oneself.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model embodiment.
In figure:
Steam exhaust device 1, blow-off line 2, air cooling tubes condenser the 3, first condensing water conduit 4, condensation water are sent pipeline 5, are condensed
Water pump 6, condensate tank the 7, second condensing water conduit 8, spike cooling condensate pump 9, circulating water pipeline 10, cooling tower 11, water-cooled
Condenser heat exchanger 12, water circulating pump 13；
Exhaust steam A, condensation water B.
Detailed description of the invention
Embodiment 1:
See the schematic diagram that Fig. 1, Fig. 1 are embodiment 1, the direct air cooling system of this utility model band peak cooling device,
Including steam exhaust device 1, blow-off line 2, air cooling tubes condenser 3 and peak cooling device (by water-cooled condenser heat exchanger 12, cooling tower
11, circulating water pipeline 10 and water circulating pump 13 form), water-cooled condenser heat exchanger 12 is arranged in steam exhaust device 1, described system
Being additionally arranged condensate tank 7, air cooling tubes condenser 3 is connected with condensate tank 7 through the first condensing water conduit 4, and steam exhaust device 1 is through
Two condensing water conduits 8 are connected with condensate tank 7.Cooling tower 11 is the air cooling tower of dry type, or the enclosed evaporation cooling of wet type
Tower, or the open cooling tower of wet type.The cooling tower 11 water-cooled condenser heat exchange in circulating water pipeline 10 with steam exhaust device 1
Device 12 is connected.
After workflow of the present utility model is such that the exhaust steam A entrance steam exhaust device 1 that steam turbine is discharged, in the middle part of it
Dividing exhaust steam to be condensed at water-cooled condenser heat exchanger 12 outer surface, the water of condensation flows to the bottom of steam exhaust device 1, cold at spike
But, under condensate pump 9 drives, enter in condensate tank 7 through the second condensing water conduit 8；Circulation in water-cooled condenser heat exchanger 12
After water and exhaust steam carry out heat exchange, temperature raises becomes high temperature circulation water, through circulating water pipeline 10 under water circulating pump 13 drives
Send into cooling tower 11, become low-temperature circulating water after cooling down in being cooled in tower and enter back in water-cooled condenser heat exchanger 12.At steam discharge
It is not water cooled the exhaust steam of condenser heat exchanger 12 condensation in device 1, in blow-off line 2 imports air cooling tubes condenser 3, is condensed
Entering condensate tank 7 by the first condensing water conduit 4 afterwards, the condensation water in condensate tank 7 is finally sent by condensate pump 6, as
Condense shown in water B.
The effect of peak cooling device is: put into operation in the high temperature period, undertakes the condensation load of part exhaust steam, makes up sky
The deficiency that cold condenser 3 is exerted oneself, makes unit back pressuce reduce.When the temperature of the surroundings is low, peak cooling device is out of service.
Claims (2)
1. a direct air cooling system for band peak cooling device, including steam exhaust device (1), blow-off line (2), air cooling tubes condenser
And peak cooling device (3), it is characterised in that: described peak cooling device includes water-cooled condenser heat exchanger (12), cooling tower
(11) and circulating water pipeline (10), water-cooled condenser heat exchanger (12) is arranged in steam exhaust device (1), and circulating water pipeline (10) will
Water-cooled condenser heat exchanger (12) is connected with cooling tower (11)；Described system is additionally arranged condensate tank (7), the first condensing water conduit
(4) being connected with condensate tank (7) by air cooling tubes condenser (3), the second condensing water conduit (8) is by steam exhaust device (1) and condensate tank
(7) connect.
The direct air cooling system of a kind of band peak cooling device the most according to claim 1, it is characterised in that: described cooling
Tower (11) is the air cooling tower of dry type, or the enclosed wet cooling tower of wet type, or the open cooling tower of wet type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620796760.2U CN205860801U (en) | 2016-07-27 | 2016-07-27 | direct air cooling system with peak cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620796760.2U CN205860801U (en) | 2016-07-27 | 2016-07-27 | direct air cooling system with peak cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205860801U true CN205860801U (en) | 2017-01-04 |
Family
ID=57648777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620796760.2U Active CN205860801U (en) | 2016-07-27 | 2016-07-27 | direct air cooling system with peak cooling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205860801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091717A (en) * | 2016-07-27 | 2016-11-09 | 双良节能系统股份有限公司 | Direct air cooling system with peak cooling device |
| CN107906974A (en) * | 2017-10-12 | 2018-04-13 | 国网河北能源技术服务有限公司 | A kind of Air-Cooling Island surplus energy utility system |
-
2016
- 2016-07-27 CN CN201620796760.2U patent/CN205860801U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091717A (en) * | 2016-07-27 | 2016-11-09 | 双良节能系统股份有限公司 | Direct air cooling system with peak cooling device |
| CN107906974A (en) * | 2017-10-12 | 2018-04-13 | 国网河北能源技术服务有限公司 | A kind of Air-Cooling Island surplus energy utility system |
| CN107906974B (en) * | 2017-10-12 | 2019-03-22 | 国网河北能源技术服务有限公司 | A kind of Air-Cooling Island surplus energy utility system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |