CN108731496A - A kind of system and device improving air cooling unit vacuum - Google Patents
A kind of system and device improving air cooling unit vacuum Download PDFInfo
- Publication number
- CN108731496A CN108731496A CN201810554177.4A CN201810554177A CN108731496A CN 108731496 A CN108731496 A CN 108731496A CN 201810554177 A CN201810554177 A CN 201810554177A CN 108731496 A CN108731496 A CN 108731496A
- Authority
- CN
- China
- Prior art keywords
- exhaust device
- steam exhaust
- steam
- air cooling
- cooling unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B3/00—Condensers in which the steam or vapour comes into direct contact with the cooling medium
- F28B3/04—Condensers in which the steam or vapour comes into direct contact with the cooling medium by injecting cooling liquid into the steam or vapour
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
A kind of system and device improving air cooling unit vacuum, the method is transported to demineralized water in air cooling unit operational process in the steam exhaust device for being designed with optimization guiding device, and after the steam exhaust device throat for being equipped with optimization guiding device and steam exhaust device drain port being sprayed at after the desalination water atomization for entering steam exhaust device, make fully to be exchanged heat between demineralized water and air cooling unit steam discharge, it assists air to cool down air cooling unit steam discharge, improves unit vacuum degree.The present invention gives corresponding air cooling unit steam discharge cooling device simultaneously.The present invention is sprayed onto after desalination is cooled down water atomization in steam exhaust device, make to exchange heat between demineralized water and air cooling unit steam discharge, the deficiency of the air-cooled thermal energy power of steam exhaust device is compensated for, the present invention fundamentally solves the problems, such as that steam exhaust device vacuum degree is low, improves the heat-economy of unit.
Description
Technical field
The present invention relates to a kind of systems and device for reducing air cooling unit low pressure (LP) cylinder exhaust steam pressure, belong to generation technology
Field.
Background technology
In Turbine with Air Cooled operational process, low pressure (LP) cylinder steam drain is most of at present constantly to steam exhaust device steam discharge
Unit is all the steam discharge that air cooling unit is cooled down using axial flow blower.Exhauster system mainly by steam exhaust device, water-ring vacuum pump,
Evacuate feed channel and related ancillary equipment composition.Direct Air-cooled Unit cools down turbine discharge, cooling using surrounding air
Ability depends on the air themperature into air cooling tubes condenser, and natural environment temperature is high, it will makes under air cooling tubes condenser cooling capacity
Drop, and then influence the safety and economic operation of unit.In order to improve the high problem of air cooling tubes condenser entering air temperature, at present directly
Air cooling unit uses spray humidification system, i.e., arranges that several desalination water atomizing systems, nozzle will in air cooling blower fan outlet attachment
Desalination water atomization so that it is sufficiently mixed with fan outlet air and evaporates rapidly during the motion, and droplet will be from air
A large amount of heat is absorbed to which heat is taken away in evaporation, and to reduce the dry-bulb temperature of air, cooled air flows through air-cooled condensing
Device enhances heat transfer effect, achievees the purpose that improve condenser vacuum.In order to improve the vacuum of air cooling tubes condenser, also have existing
Technology arranges desalination water atomizing system in Air-Cooling Island fin area, during being cooled down to steam discharge so that air and removes
Salt atomized water is common and unit steam discharge exchanges heat.
There is the excess waste situation of demineralized water in the both the above atomization type of cooling, demineralized water manufacturing cost is high, this two
The outer discharge that a large amount of demineralized waters kind are not only caused in the way of demineralized water also creates the waste of water resource.For this reason, it is necessary to
Design is advanced optimized to existing air cooling tubes condenser spraying system, is subtracted while improving condenser vacuum to greatest extent
The discharge of small demineralized water wastes.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of air cooling tubes condenser spray humidification system optimizations
Design scheme ensures generating set safety and economic operation to improve the vacuum degree of condenser.
A kind of system and device improving air cooling unit vacuum, the scheme is in Steam Turbine operational process by desalination
Water is transported in steam exhaust device, and the throat that steam exhaust device is sprayed at after the desalination water atomization for entering steam exhaust device and steam discharge are filled
After setting steam guiding tube drain port, make to carry out mixed heat transfer between demineralized water and generating set steam discharge incessantly, assists condenser cold
But pipe cools down generating set steam discharge, improves condenser vacuum.
A kind of system and device improving air cooling unit vacuum, composition includes sweet-water tank, steam exhaust device, sparge pipe
The head end of road, nozzle, guiding device, the water pipeline draws the demineralized water in sweet-water tank by cooling water pump, and tail end is inserted
Enter the throat of steam exhaust device and be equipped with water pipeline and atomizer, steam exhaust device throat water pipeline is provided with water conservancy diversion dress
It sets；Water pipeline and atomizer are provided with after the steam exhaust device steam guiding tube drain port, the steam exhaust device steam guiding tube is hydrophobic
It is provided with guiding device after mouthful.
A kind of above-mentioned system and device improving air cooling unit vacuum, the atomizer setting on the water pipeline are more
It is a, they on the horizontal cross-section of steam exhaust device throat in a certain way, certain angle distribution, in steam exhaust device, throat is provided with
Guiding device.The atomizer being arranged at steam exhaust device steam guiding tube drain port is at vertical cross-section with certain way, certain angle
Distribution, guiding device is provided at steam exhaust device steam guiding tube drain port.
The present invention is sprayed onto after desalination is cooled down water atomization in steam exhaust device, and guiding device is arranged in steam exhaust device, is ensured
Unit steam discharge makes to exchange heat incessantly between demineralized water and generating set steam discharge while smooth, compensates for air cooling and changes
The hypodynamic problem of thermal energy, the present invention fundamentally solve the problems, such as that condenser vacuum is low, ensure the same of unit safety
When improve the heat-economy of unit.
Description of the drawings
Fig. 1 is the structural schematic diagram of generating set steam discharge cooling device used in the present invention.Fig. 2 is after steam exhaust device drain port
Demineralized water atomization system device sectional view.
In figure respectively marked as：1. sweet-water tank；2. water pump；3. water pipeline；4. atomizer；5. steam exhaust device；6. dredging
Waterpipe；7. guiding device.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 1, generating set steam discharge cooling system of the present invention includes sweet-water tank 1, is mounted on steam discharge dress
Set water pipeline 3, atomizer 4, the steam discharge guiding device 7 after steam exhaust device throat and drain port.Wherein, it sprays water
Pipeline 3 is supported by being connected to the supporting rack of steam exhaust device inner wall, and atomizer 4 is mounted on water pipeline 3 at a certain angle.Spray
The quantity of waterpipe 3 and atomizer 4 is determined according to the number of cooling water inflow, and water pipeline 3 and atomizer 4 are in steam discharge
Installation and arrangement mode in device are determined according to the actual optimization result of calculation of different units.
Unit steam exhausting cooling method：
In Steam Turbine operational process, the demineralized water in sweet-water tank 1 is transported in water pipeline 3 by cooling water pump 2,
After being sprayed at throat and the steam exhaust device drain port of steam exhaust device 5 after the atomization of atomizer 4 again, make demineralized water and unit steam discharge
Between carry out mixed heat transfer incessantly.
The present invention has the following advantages：
(1) desalination cooling water atomizing sprinkling system is set after steam exhaust device throat, drain port, and demineralized water sprays after atomization
Enter steam exhaust device, when unit normal operation, heat exchange is can be mixed between cooling water and steam discharge, makes the displacement of condensation significantly
Increase, this thermic load to improving main coagulation region, it is meaningful to improve unit vacuum and improve unit heat economy.
(2) cooling water after being atomized and the mixing of unit steam discharge, after steam discharge cooling condensation, it is easy to by the sky in condenser
Air elutriation goes out, and can not only improve the working efficiency of air-extractor, but also can improve cooling tube and unit steam discharge in condenser
Heat transfer effect, this improves its heat-economy and is also very effective to improving unit vacuum.
(3) optimal design-aside water conservancy diversion fills at water pipeline after steam exhaust device throat water pipeline and steam exhaust device drain port
It sets, can be very good to improve the flow field inside steam exhaust device so that ensure that while atomization demineralized water is with steam discharge mixed heat transfer
Flow field inside steam exhaust device.
Above-described embodiment is only currently preferred several embodiments, is not intended to the limit to the scope of the present invention
Fixed, under the premise of not departing from core technology of the present invention, this field ordinary engineering and technical personnel makes technical solution of the present invention
Various equivalent variations or improvement, should all fall into the present invention protection domain within.
Claims (4)
1. a kind of system and device improving air cooling unit vacuum, characterized in that the method is will in unit running process
During demineralized water is transported to 5 in the guiding device steam exhaust device for be equipped with optimization design, and the desalination water mist that steam exhaust device 5 will be entered
It is sprayed at after change at the steam exhaust device throat and drain port of the guiding device for being equipped with optimization design, is ensureing steam discharge even flow field
In the case of, make to exchange heat between demineralized water and air cooling unit steam discharge, improves the vacuum degree of steam exhaust device.
2. a kind of system and device improving air cooling unit vacuum according to claim 1, characterized in that desalination water atomization
Spray into and the steam exhaust device throat of guiding device be installed, the mounting means of nozzle, quantity, setting angle according to the flow field of throat into
Row determines.
3. a kind of system and device improving air cooling unit vacuum according to claim 1, characterized in that desalination water atomization
After penetrating is equipped with the steam exhaust device drain port of guiding device, the mounting means of nozzle, quantity, setting angle are according to the stream of throat
Field is determined.
4. a kind of system and device improving air cooling unit vacuum according to claim 2 or 3, characterized in that in steam discharge
Steam discharge water conservancy diversion is set at device throat and steam exhaust device drain port and optimizes device, the water pipeline 3 in steam exhaust device throat and
Atomizer 4 is arranged multiple at steam exhaust device drain port, they are on the section at steam exhaust device throat, steam exhaust device drain port
It is installed with certain amount, setting angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554177.4A CN108731496A (en) | 2018-06-01 | 2018-06-01 | A kind of system and device improving air cooling unit vacuum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554177.4A CN108731496A (en) | 2018-06-01 | 2018-06-01 | A kind of system and device improving air cooling unit vacuum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108731496A true CN108731496A (en) | 2018-11-02 |
Family
ID=63931434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810554177.4A Pending CN108731496A (en) | 2018-06-01 | 2018-06-01 | A kind of system and device improving air cooling unit vacuum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108731496A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07310987A (en) * | 1994-05-18 | 1995-11-28 | Toshiba Corp | Discharging device of drain in cooler |
| CN2911191Y (en) * | 2006-06-07 | 2007-06-13 | 杨驭 | Integrated steam exhauster of air cooling turbine |
| CN101435348A (en) * | 2008-12-13 | 2009-05-20 | 东方电气集团东方汽轮机有限公司 | Air cooling steam turbine steam discharge apparatus built-in with deoxidization apparatus |
| CN202470861U (en) * | 2012-02-29 | 2012-10-03 | 关明 | Steam turbine condenser throat part for optimizing exhaustion steam flow field |
| CN103758590A (en) * | 2014-01-24 | 2014-04-30 | 上海电气电站设备有限公司 | Novel low-pressure-cylinder steam-discharging-pipe deoxygenization structure of direct air-cooling unit |
| CN204024731U (en) * | 2014-09-05 | 2014-12-17 | 西安亨特电力科技有限公司 | The built-in finer atomization cooling unit of a kind of Air-Cooling Island blow-off line |
| CN204963598U (en) * | 2015-06-18 | 2016-01-13 | 新疆中能建能源股份有限公司 | Air cooling unit backpressure structure |
| CN105258528A (en) * | 2015-11-05 | 2016-01-20 | 洛阳隆华传热节能股份有限公司 | Efficient composite steam condensation system |
| CN106050331A (en) * | 2016-08-04 | 2016-10-26 | 河北工程大学 | Cooling method and device for exhaust steam of generator set |
-
2018
- 2018-06-01 CN CN201810554177.4A patent/CN108731496A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07310987A (en) * | 1994-05-18 | 1995-11-28 | Toshiba Corp | Discharging device of drain in cooler |
| CN2911191Y (en) * | 2006-06-07 | 2007-06-13 | 杨驭 | Integrated steam exhauster of air cooling turbine |
| CN101435348A (en) * | 2008-12-13 | 2009-05-20 | 东方电气集团东方汽轮机有限公司 | Air cooling steam turbine steam discharge apparatus built-in with deoxidization apparatus |
| CN202470861U (en) * | 2012-02-29 | 2012-10-03 | 关明 | Steam turbine condenser throat part for optimizing exhaustion steam flow field |
| CN103758590A (en) * | 2014-01-24 | 2014-04-30 | 上海电气电站设备有限公司 | Novel low-pressure-cylinder steam-discharging-pipe deoxygenization structure of direct air-cooling unit |
| CN204024731U (en) * | 2014-09-05 | 2014-12-17 | 西安亨特电力科技有限公司 | The built-in finer atomization cooling unit of a kind of Air-Cooling Island blow-off line |
| CN204963598U (en) * | 2015-06-18 | 2016-01-13 | 新疆中能建能源股份有限公司 | Air cooling unit backpressure structure |
| CN105258528A (en) * | 2015-11-05 | 2016-01-20 | 洛阳隆华传热节能股份有限公司 | Efficient composite steam condensation system |
| CN106050331A (en) * | 2016-08-04 | 2016-10-26 | 河北工程大学 | Cooling method and device for exhaust steam of generator set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202092479U (en) | Closed air cooling system for auxiliary machine circulating cooling water | |
| CN106050331B (en) | A kind of generating set steam exhausting cooling method and device | |
| CN206037754U (en) | Accuse temperature water conservation fog dispersal device | |
| CN111457758A (en) | Cooling device and method for industrial hot fluid | |
| CN108709341A (en) | A kind of pre- cold mould spray evaporation type condenser | |
| CN103411469A (en) | Cooling tower water vapor and heat energy recovery method and system | |
| CN105276735A (en) | Evaporative cooling-mechanical refrigerating combined air conditioning system utilizing subway tunnel to radiate | |
| CN104930619B (en) | The power plant air-conditioning system that evaporation cooling-absorption heat pump is combined | |
| CN205448741U (en) | Evaporation cooling system for indirect air cooling unit cold junction system | |
| CN206016870U (en) | A kind of generating set steam discharge cooling device | |
| CN104279884A (en) | Direct air cooling condenser temperature lowering system | |
| CN104596005B (en) | Water-saving filler wraps up in tubular type Evaporative Cooling Air-conditioning System | |
| CN201652658U (en) | Filler-high pressure micro-mist composite type direct evaporative cooling air conditioning unit | |
| CN103453605A (en) | Indirect-direct composite evaporative condensing device used for power plant | |
| CN108731496A (en) | A kind of system and device improving air cooling unit vacuum | |
| CN104501624A (en) | Power plant used cooling system combining evaporative type cooler and surface type condensing system | |
| CN105605705B (en) | The Arid Area cooling independent temperature-humidity control Fresh air handling units of evaporation | |
| CN204421686U (en) | The cooling device that the evaporative cooling being applicable to power plant is combined with surperficial condensing | |
| CN104197737B (en) | A kind of energy-conserving cooling device for direct air cooling system | |
| CN204555447U (en) | Pre-cold mould evaporative condenser | |
| CN208012406U (en) | A kind of backflow-type closed heat source tower | |
| CN209512559U (en) | A kind of zero mist energy and water saving type dry-and wet-type cooling tower | |
| CN207881503U (en) | A kind of white cigarette processing unit | |
| CN207501733U (en) | A kind of mechanical-draft cooling tower with cold coagulation liquid fog dispersal | |
| CN205174665U (en) | Compound air conditioning system based on subway tunnel heat dissipation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |