CN205138248U - High -efficient compound steam condensate system - Google Patents
High -efficient compound steam condensate system Download PDFInfo
- Publication number
- CN205138248U CN205138248U CN201520873087.3U CN201520873087U CN205138248U CN 205138248 U CN205138248 U CN 205138248U CN 201520873087 U CN201520873087 U CN 201520873087U CN 205138248 U CN205138248 U CN 205138248U
- Authority
- CN
- China
- Prior art keywords
- steam
- water
- cooling tower
- condensate
- closed cooling
- 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.)
- Active
Links
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model relates to an exhaust steam condensing system of steam power plant's air cooling unit provides a high -efficient compound steam condensate system. A direct air cooling condensing system that's a high -efficient compound steam condensate system has by air cooling condenser (11), steam turbine (1), main steam exhausting pipeline (12), exhaust apparatus (2), the water tank that condenses (7) and vacuum pumping system (10) component is proposed, the steam condensate system still is provided with closed cooling tower (6), export and main steam exhausting pipeline (12) of closed cooling tower (6) are linked together, the lower part of main steam exhausting pipeline (12) is provided with rather than water storage tank (4) that are linked together, and water storage tank (4) are linked together with the import of closed cooling tower (6), in the export and the pipeline between the main steam exhausting pipeline of closed cooling tower (6), be provided with the governing valve on the import of closed cooling tower (6) and the pipeline between water storage tank (4) respectively. The utility model discloses make the unit an annual high position exert oneself, maintain higher economic nature.
Description
Technical field
The utility model relates to the exhaust steam condenser system of steam power plant's Air-cooled Unit, is specifically related to a kind of efficient compound steam and condensate system.
Background technology
At present, water resource lacks the direct air setting system of the many employings of steam and condensate system of regional steam power plant, the steam discharge of steam turbine directly enters air cooling tubes condenser air and carries out condensation, and air and steam carry out heat exchange, and required air is supplied by force ventilation mode usually.Air setting system has air dielectric and is freely easy to get, and corrosivity is little, the feature that maintenance of equipment expense is low.But the condensation effect of air cooling tubes condenser depends on the dry-bulb temperature of air, when particularly summer environment temperature is higher, air cooling tubes condenser can not reach design load, and condensation temperature is higher; Air side heat transfer coefficient is low, and air specific heat is little, so air cooling tubes condenser needs very large area could meet the requirement of heat exchange load; The performance of air cooling tubes condenser is also by the impact when ground temperature, sleet, strong wind, sand and dust in addition.
Direct air cooling system is higher in summer environment temperature, or when affecting by the extraneous objective factor such as strong wind, sand and dust, equipment heat exchange property can weaken, steam discharge condensation temperature raises, turbine back pressure increases, thus cause that unit output is limited, coa consumption rate improves, Heat Economy of Power Plants reduces.
Utility model content
Affected by environment comparatively large in order to solve Direct Air-Cooled condensing system in prior art, the problem of heat exchange property instability, the purpose of this utility model proposes a kind of efficient compound steam and condensate system.
The utility model adopts following technical scheme for completing above-mentioned purpose:
A kind of efficient compound steam and condensate system, described steam and condensate system has Direct Air-Cooled condensing system, described Direct Air-Cooled condensing system includes air cooling tubes condenser, steam turbine, main blow-off line, exhaust apparatus, condensate tank and pumped vacuum systems, the exhaust apparatus described in weary steam (vapor) outlet connection of described steam turbine, described exhaust apparatus is connected with the evaporation distributing pipe of air cooling tubes condenser by main blow-off line, cool water shower device is provided with in main blow-off line between described exhaust apparatus and air cooling tubes condenser, in order to make weary steam before entering air cooling tubes condenser with atomization after cooling water direct contact heat transfer, some vapor generation condensation, reduce the weary steam entering air cooling tubes condenser, effectively share the thermic load of air cooling tubes condenser, the bottom of described main blow-off line is provided with coupled logical discharging tube, and the other end of described discharging tube is communicated with water tank, described water tank is connected with closed cooling tower by water circulating pump, in order to by with weary steam heat-exchanging after high-temperature cooling water and condensate liquid after the weary steam-condensation of part send into closed cooling tower and carry out cooling heat exchange, cooling water after closed cooling tower cooling heat transferring is connected with the cool water shower device in main blow-off line, cooling water is recycled between closed cooling tower and water tank, complete whole recuperated cycle, on pipeline between described closed cooling tower and main blow-off line, pipeline between closed cooling tower and water tank is respectively arranged with the control valve regulating cooling water flow, by adjusting the flow of cooling water, adjustment and closed cooling tower carry out the weary quantity of steam of heat exchange, realize the object that Air-Cooling Island thermic load shared by closed cooling tower, unit operation back pressure is controlled at proper range.
The top of described water tank is connected with described pumped vacuum systems, intrasystem air and incondensable gas is extracted out, and keeps the pressure balance of water tank and exhaust apparatus.
Described condensate tank is positioned at the bottom of described exhaust apparatus, and is connected with water tank, boiler respectively, and described condensate tank is connected with described water tank, internal system water quantity holding is balanced, does not affect steam generator system and normally run.
A kind of efficient compound steam and condensate system that the utility model proposes, adopts technique scheme, has following beneficial effect:
1) outlet of closed cooling tower is connected with the main blow-off line of Direct Air-Cooled condensing system, the weary steam direct contact heat transfer that low-temperature cooling water after closed cooling tower cooling and steam turbine are discharged, some vapor generation condensation, condensate liquid and the cooling water after heating up import in the water tank of main blow-off line bottom jointly, then be delivered to closed cooling tower by circulating pump to lower the temperature again, complete whole recuperated cycle, a part of water vapour in turbine discharge is condensation by contact direct with low-temp. spraying trickle in main blow-off line, heat exchange efficiency is high, and condensation pressure drop is minimum; The thermic load of air cooling tubes condenser shared by closed cooling tower, the annual high position of unit energy exerted oneself, maintains higher economy;
2) entered, flowed out the cooling water flow of closed cooling tower by adjustment, adjustment and closed cooling tower carry out the weary quantity of steam of heat exchange, achieve free adjustment heat exchange load, adapt to the object of different operating mode; When summer, unit operation back pressure was too high, the heat of a part of steam discharge is discharged by closed cooling tower, alleviate the pressure of direct air cooled condenser, reach and reduce back pressure, increase the object that steam turbine exerts oneself; When spring, autumn, winter, unit operation back pressure was lower, quantity of circulating water can be regulated according to power generation requirements, play the effect regulating unit generation load.
3) the weary quantity of steam owing to entering air cooling tubes condenser reduces, and in blow-off line, steam flow rate reduces, and air cooling system friction pressure drop reduces;
4) shower water is identical with weary steam condensate water quality, and in main blow-off line and the inner closed cycle of closed cooling tower, not with contacting external air, and from water circulating pump to shower nozzle between pipeline be all malleation, so condensate water water pollution can not be caused and cause the problem that system water processing load increases; System water quality is good, and at closed cooling tower internal cooling, does not have in-tube fouling problem;
5) heat extraction is taken away primarily of the outside Sprayer Circulation water evaporation of closed cooling tower, and water quality requirement is strict, and the sewage such as industry, life can utilize after treatment again, and scheme is simply, small investment, effective.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present utility model.
In figure: 1, steam turbine, 2, exhaust apparatus, 3, cool water shower device, 4, water tank, 5, water circulating pump, 6, closed cooling tower, 7, condensate tank, 8, steam-distributing pipe, 9, condensate pipe, 10, pumped vacuum systems, 11, air cooling tubes condenser, 12, main blow-off line, 13, following current tube bank, 14, adverse current tube bank.
Detailed description of the invention
With specific embodiment, the utility model is further described by reference to the accompanying drawings:
As shown in Figure 1, a kind of efficient compound steam and condensate system, described steam and condensate system has Direct Air-Cooled condensing system, described Direct Air-Cooled condensing system includes air cooling tubes condenser 11, steam turbine 1, main blow-off line 12, exhaust apparatus 2, condensate tank 7 and pumped vacuum systems 10, described air cooling tubes condenser includes steam-distributing pipe 8, condensate pipe 9, following current tube bank and adverse current tube bank, the exhaust apparatus 2 described in weary steam (vapor) outlet connection of described steam turbine 1, described exhaust apparatus 2 is connected with the evaporation distributing pipe 8 of air cooling tubes condenser 11 by main blow-off line 12, cool water shower device 3 is provided with in main blow-off line between described exhaust apparatus and air cooling tubes condenser, in order to make weary steam before entering air cooling tubes condenser with atomization after cooling water direct contact heat transfer, some vapor generation condensation, reduce the weary steam entering air cooling tubes condenser, effectively share the thermic load of air cooling tubes condenser, cool water shower device 3 described in this embodiment adopts shower nozzle, the bottom of described main blow-off line 12 is provided with coupled logical discharging tube, and the other end of described discharging tube is communicated with water tank 4, described water tank 4 is connected with closed cooling tower 6 by water circulating pump 5, in order to by with weary steam heat-exchanging after high-temperature cooling water and condensate liquid after the weary steam-condensation of part send into closed cooling tower 6 and carry out cooling heat exchange, cooling water after closed cooling tower 6 cooling heat transferring is connected with the cool water shower device 3 in main blow-off line, cooling water is recycled between closed cooling tower 6 and water tank 4, complete whole recuperated cycle, on pipeline between described closed cooling tower 6 and main blow-off line 12, pipeline between closed cooling tower 6 and water tank 4 is respectively arranged with the control valve regulating cooling water flow, by adjusting the flow of cooling water, adjustment and closed cooling tower carry out the weary quantity of steam of heat exchange, realize regulating closed cooling tower to share the object of Air-Cooling Island thermic load, unit operation back pressure is controlled at proper range, described closed cooling tower is closed when unit operation back pressure is lower, and the weary steam that the weary steam (vapor) outlet of steam turbine is discharged directly enters air cooling tubes condenser and carries out air cooling heat exchange.
The adverse current of described air cooling tubes condenser is restrained 14 tops and is connected with described pumped vacuum systems 10, intrasystem air and incondensable gas is extracted out, avoids forming dead band in running hollow cold condenser, cause freeze winter.
The top of described water tank 4 is connected with described pumped vacuum systems 10, intrasystem air and incondensable gas is extracted out, and keeps the pressure balance of water tank and exhaust apparatus.
Described condensate tank 7 is positioned at the bottom of described exhaust apparatus 2, and be connected with water tank 4, boiler 16 respectively, described condensate tank 7 is connected with described water tank 4, by with weary steam heat-exchanging after high-temperature cooling water and condensate liquid send into closed cooling tower.
Described closed cooling tower 6 is a kind of typical evaporative type coolers, primarily of part compositions such as heat exchange module, water circulation system and blower fans; Thermal medium enters in heat exchange module from medium entrance, and heat exchange abundant with the shower water of heat exchanger tube outside, the medium after cooling is discharged via the media outlet of module lower end; In pipe, during medium cooling, liberated heat makes the outer shower water evaporation of pipe; Air enters from cooler bottom under fan action, and top enters air, and sensible heat when absorbing a large amount of latent heat and air themperature rising when relying on shower water to evaporate realizes heat exchange; Unevaporated water flows into bottom water tank, delivers to above heat exchange module through water circulating pump again, and after nozzle spray, it is dirty that the surface along heat exchange module condenser pipe forms water film, realizes recycling of shower water; Be provided with high-efficient water-recovering device above nozzle, avoid water droplet to be taken out of by humid air.
The course of work of the present utility model is: high steam does work through steam turbine 1, drive electrical generators generates electricity, after steam turbine 1 does work, weary steam enters exhaust apparatus 2, when opening closed cooling tower 6 and water circulating pump 5, high-temperature condensation water in water tank 4 sprays after lowering the temperature via closed cooling tower 6 becomes owner of in blow-off line 12, make weary steam and the direct condensation by contact of low-temp. spraying trickle, later shower water and the steam condensate of heating up enters in the water tank 4 of main blow-off line bottom jointly, be delivered to closed cooling tower 6 by water circulating pump 5 again to lower the temperature, form circulation.According to the power generation requirements control valve controlled circulation water yield, the effect regulating unit generation load can be played when cooling system runs.
Claims (3)
1. an efficient compound steam and condensate system, described steam and condensate system has Direct Air-Cooled condensing system, described Direct Air-Cooled condensing system includes air cooling tubes condenser (11), steam turbine (1), main blow-off line (12), exhaust apparatus (2), condensate tank (7) and pumped vacuum systems (10), the exhaust apparatus (2) described in weary steam (vapor) outlet connection of described steam turbine (1), described exhaust apparatus (2) is connected with the evaporation distributing pipe (8) of air cooling tubes condenser (11) by main blow-off line (12), it is characterized in that: in the main blow-off line between described exhaust apparatus and air cooling tubes condenser, be provided with cool water shower device (3), the bottom of described main blow-off line (12) is provided with coupled logical discharging tube, and the other end of described discharging tube is communicated with water tank (4), described water tank (4) is connected with closed cooling tower (6) by water circulating pump (5), in order to by with weary steam heat-exchanging after high-temperature cooling water and condensate liquid after the weary steam-condensation of part send into closed cooling tower (6) and carry out cooling heat exchange, cooling water after closed cooling tower (6) cooling heat transferring is connected with the cool water shower device (3) in main blow-off line, cooling water is recycled between closed cooling tower (6) and water tank (4), complete whole recuperated cycle, on pipeline between described closed cooling tower (6) and main blow-off line (12), pipeline between closed cooling tower (6) and water tank (4) is respectively arranged with the control valve regulating cooling water flow.
2. a kind of efficient compound steam and condensate system as claimed in claim 1, its feature exists: the top of described water tank (4) is connected with described pumped vacuum systems (10).
3. a kind of efficient compound steam and condensate system as claimed in claim 1, its feature exists: described condensate tank (7) is positioned at the bottom of described exhaust apparatus (5), and be connected with water tank (4), boiler respectively, described condensate tank (7) is connected with described water tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520873087.3U CN205138248U (en) | 2015-11-05 | 2015-11-05 | High -efficient compound steam condensate system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520873087.3U CN205138248U (en) | 2015-11-05 | 2015-11-05 | High -efficient compound steam condensate system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205138248U true CN205138248U (en) | 2016-04-06 |
Family
ID=55624034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520873087.3U Active CN205138248U (en) | 2015-11-05 | 2015-11-05 | High -efficient compound steam condensate system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205138248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2015
- 2015-11-05 CN CN201520873087.3U patent/CN205138248U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105258528A (en) | Efficient composite steam condensation system | |
| US20210239326A1 (en) | Energy-saving system using electric heat pump to deeply recover flue gas waste heat from heat power plant for district heating | |
| CN103527267B (en) | Direct air-cooling unit system with plate-type evaporative condenser unit adopted | |
| CN102564157B (en) | Energy-saving cooling device of direct air cooling system | |
| CN104864732A (en) | Evaporation type condenser system used for thermal power plant small steam turbine steam exhaust condensing | |
| CN202092479U (en) | Closed air cooling system for auxiliary machine circulating cooling water | |
| CN202372021U (en) | Energy-saving cooling device of direct air-cooling system | |
| CN203531984U (en) | Direct air-cooling unit system with plate-type evaporative condenser set | |
| CN105627778A (en) | Evaporative cooling system for indirect air-cooling unit cold-end system | |
| CN203249440U (en) | Evaporative type condenser | |
| CN203478483U (en) | Composite evaporating and condensing device suitable for power plant | |
| CN202485478U (en) | Direct air-cooling condensing system with peak cooler | |
| CN211953332U (en) | Energy-saving and water-saving efficient evaporative condenser | |
| CN205138248U (en) | High -efficient compound steam condensate system | |
| CN202382609U (en) | Device for increasing summer vacuum of direct air-cooled system of fossil power plant | |
| CN102425957A (en) | Plate type evaporation air-cooling condenser with obliquely-arranged heat exchange plate bundles | |
| CN204694095U (en) | For the evaporative condenser system of thermal power plant's small turbine exhaust steam condensation | |
| CN103453605A (en) | Indirect-direct composite evaporative condensing device used for power plant | |
| CN102607291A (en) | Direct air-cooling and condensing system with peak cooler | |
| CN104501624A (en) | Power plant used cooling system combining evaporative type cooler and surface type condensing system | |
| CN110617717A (en) | Concurrent flow type evaporative condenser | |
| CN204421686U (en) | The cooling device that the evaporative cooling being applicable to power plant is combined with surperficial condensing | |
| CN106871500A (en) | A kind of plate-type evaporative condenser | |
| CN209605644U (en) | It is a kind of adapt to District of Shanghai power-efficient data in core cooling system | |
| CN108759504B (en) | A kind of natural ventilation air-cooling tower and cooling means of nozzle evaporation pre-cooling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 471132 Luoyang Airport Industrial Agglomeration Area, Matun Town, Mengjin County, Luoyang, Henan Patentee after: Longhua Technology Group (Luoyang) Limited by Share Ltd Address before: 471132 Luoyang Airport Industrial Agglomeration Area, Matun Town, Mengjin County, Luoyang, Henan Patentee before: Luoyang Longhua Heat Transfer & Energy Conservation Co., Ltd. |