CN202165131U - Rapid cooling device for turbine - Google Patents
Rapid cooling device for turbine Download PDFInfo
- Publication number
- CN202165131U CN202165131U CN2011202121905U CN201120212190U CN202165131U CN 202165131 U CN202165131 U CN 202165131U CN 2011202121905 U CN2011202121905 U CN 2011202121905U CN 201120212190 U CN201120212190 U CN 201120212190U CN 202165131 U CN202165131 U CN 202165131U
- Authority
- CN
- China
- Prior art keywords
- air
- heater
- valve
- steam turbine
- turbine
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model discloses a rapid cooling device for a turbine, which comprises an air compressor used for supplying compressed air, an oil-water separator, an air heater, an air collection box and an electric control cabinet used for controlling all the devices, and the air compressor, the oil-water separator, the air heater, the air collection box and the electric control cabinet are sequentially connected by a pipeline used for conveying cooled air; a secondary heater is arranged between the air heater and the air collection box; a first valve is positioned between the air heater and the secondary heater; second valves are arranged on the air heater and at the two ends of the first valve in parallel; and a pipeline which is connected with the air collection box by a third valve is arranged between the air heater and the first valve. The rapid cooling device for the turbine has the beneficial effects that 1. the problem of thermal impact of fair-current cooling for the turbine can be solved, the cooling effect is good, and the temperature of the cooled air can be adjusted according to the temperature of turbine; 2. when being started, the turbine can be preheated by hot air; 3. when the turbine is stopped for standby, dehumidification treatment can be carried out on the turbine by using dried air; and 4. the rapid cooling device can be in common use with turbines with various models, thus being good in universality.
Description
Technical field
The utility model relates to the quickly cooling device of a kind of quickly cooling device, particularly steam turbine.
Background technique
Steam turbine is that the thermal power transfer with steam is impeller type rotation prime mover of mechanical energy, mainly as prime mover of generating usefulness.Because steam turbine generally adopts high-quality thermal insulating materials such as calcium silicate, alumina silicate at present, its thermal insulation property, Safety performance have all obtained very big improvement, but have but increased the wait cool time of overhaul of steam turbine greatly, and single-machine capacity is big more, and its contradiction is outstanding more.The method that generally adopts at present the forced ventilation cooling is cooled off the cylinder of steam turbine, steam turbine quicken cooling mainly to as if height, the intermediate cylinder of steam turbine.
Can be divided into two kinds of adverse current and following currents according to the similarities and differences of cooling air and working steam flow direction.The following current cooling air is introduced from the high-temperature zone, and heat transfer temperature difference is big, than the adverse current cooling big thermal shock risk is arranged.But owing to be full admission, more even to rotor, cylinder cooling raio, air inlet area all had metal temperature to keep watch on measuring point originally can add utilization, is convenient to keep watch on and the control cooling rate.Though adverse current cooling import heat transfer temperature difference is little;, steam turbine receive the risk of thermal shock littler when being in the hot stage cooling than the following current cooling; But do not have ready-made other metal temperature supervision measuring point because of the uniformity advantage and the air inlet area that do not have the following current cooling, therefore be not easy to keep watch on and regulate.
Prove and facts have proved that through theory the following current cooling is more reasonable; In order to prevent that cooling off the incipient stage produces thermal shock in air introducing place; Control heater heating-up temperature before air is introduced; In advance cooling air is heated to uniform temperature and changes the temperature of cooling air with the change of cylinder temperature, also need the control air flow simultaneously.But the heated drying air that present cooling equipment can't provide the suitable cylinder that is used for steam turbine to cool off.
Need carry out warming-up earlier before the steam turbine start, and the time cycle of warming-up is long, has a strong impact on the starting time of steam turbine.Steam turbine is when shutdown is subsequent use, and malaria corrodes the steam turbine internal unit easily to be influenced the working life of steam turbine even cause potential safety hazard.
The model utility content
The model utility purpose: the purpose of the utility model provide a kind ofly when halt turbines is overhauled, cool off fast, the steam turbine quickly cooling device of rapidly pre-warming, dehumidifying when halt turbines is subsequent use when steam turbine starts.
Technological scheme: a kind of steam turbine quickly cooling device; Comprise through what the pipeline of carrying cooling air connected successively and compressed-air actuated air compressor, oil and water seperator, air heater and gas collecting box are provided and control the electrical control cabinet of each equipment; Be provided with after-heater between said air heater and the gas collecting box; Be provided with first valve between air heater and the after-heater; Be provided with the pipeline that is connected gas collecting box through the 3rd valve between parallelly connected second valve that is provided with of air heater, air heater and first valve with the first valve two ends.Through air compressor pressurized air is obtained dry air as source of the gas through oil and water seperator, dry air obtains dry hot air through air heater and is used to cool off steam turbine.Through the unlatching of two heaters of electrical control cabinet control and the combination action of valve.When the steamer built-in temperature is higher, start the secondary heater simultaneously, open first valve, close second and third valve simultaneously, adopting the tandem heating to make the temperature of dry air meet the requirements of temperature rapidly, to charge into gas collecting box subsequent use; When the temperature of steam turbine be reduced to gas collecting box in gas temperature when close, close first valve, open second and third valve simultaneously, it is subsequent use that the hot air that adopts parallel heating to obtain the low relatively drying of temperature charges into gas collecting box; When the temperature of steam turbine further reduces, close the air of heater through drying and directly cool off.When steamer, starting rapidly pre-warming, adopt with the opposite flow process of quick cooling and carry out preheating.When halt turbines is subsequent use, closes the air of heater through drying steam turbine is carried out dehumidification treatments.
Higher for the degree of dryness of the dry air that obtains, the secondary oil and water seperator of also connecting behind the oil and water seperator described in the air delivering pipeline adopts secondary oil-water separation further to dewater.
For the cooling air of monitoring this cooling unit situation, between said air compressor and oil and water seperator, be provided with suction valve, the air heater front end is provided with safety valve, pressure gauge and flowmeter.Be respectively equipped with thermometer on said gas collecting box and the after-heater.
In order to improve the versatility of this cooling unit, on said gas collecting box, be provided with the interface that is connected with the live steam pipe of the steam turbine of various types.
Beneficial effect: the utility model compared with prior art, its remarkable advantage is: 1, solved the problem good cooling results of downflow type cooling to the steam turbine thermal shock, can be according to the temperature of the temperature regulation cooling air of steam turbine; Can utilize hot air that steam turbine is carried out preheating when 2, steam turbine starts; Can utilize dry air that steam turbine is carried out dehumidification treatments when 3, halt turbines is subsequent use; 4, this cooling unit equipment can be general with the steam turbine of various models, and versatility is good.
Description of drawings
Fig. 1 is the control principle figure of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in the figure; A kind of steam turbine quickly cooling device; Comprise through the compressed-air actuated air compressor of providing of connecting successively of the pipeline of carrying cooling air 1, oil and water seperator 2, air heater 3 and gas collecting box 4 and control the electrical control cabinet of each equipment; Be provided with after-heater 5 between said air heater 3 and the gas collecting box 4; Be provided with first valve 6 between air heater 3 and the after-heater 5, be provided with the pipeline that is connected gas collecting box 4 through the 3rd valve 8 between parallelly connected second valve 7 that is provided with of air heater 3, air heater 3 and first valve 6 with first valve, 6 two ends.Through air compressor 1 pressurized air is obtained dry air as source of the gas through oil and water seperator 2, dry air obtains dry hot air through air heater 3 and is used to cool off steam turbine.Through the unlatching of two heaters of electrical control cabinet control and the combination action of valve.When the steamer built-in temperature is higher; Start air heater 3 and after-heater 5 simultaneously; Open first valve 6, close second valve 7 and the 3rd valve 8 simultaneously, adopting the tandem heating to make the temperature of dry air meet the requirements of temperature rapidly, to charge into gas collecting box 4 subsequent use; When the temperature of steam turbine be reduced to gas collecting box 4 in gas temperature when close, close first valve 6, open second valve 7 and the 3rd valve 8 simultaneously, it is subsequent use that the hot air that adopts parallel heating to obtain the low relatively drying of temperature charges into gas collecting box 4; When the temperature of steam turbine further reduces, close air heater 3 and directly cool off with the air of after-heater 5 through drying.When steamer, starting rapidly pre-warming, adopt with the opposite flow process of quick cooling and carry out preheating.When halt turbines is subsequent use, closes air heater 3 and after-heater 5 air through drying steam turbine is carried out dehumidification treatments.
Higher for the degree of dryness of the dry air that obtains, the secondary oil and water seperator 9 of also connecting behind the oil and water seperator described in the air delivering pipeline 2 adopts two-stage oil-water separation further to dewater.
For the cooling air of monitoring this cooling unit situation; Between said air compressor 1 and oil and water seperator 2, be provided with the suction valve 10 of control compressed air require, air heater 3 front ends are provided with the safety valve 11 that prevents the too high damage equipment of system pressure, with the pressure gauge 12 of monitoring equipment internal pressure with monitor the flowmeter 13 of compressed air require.Be respectively equipped with thermometer 14,15 on said gas collecting box 4 and the after-heater 5.
In order to improve the versatility of this cooling unit, on said gas collecting box 4, be provided with the interface 16 that is connected with the live steam pipe of the steam turbine of various types.
Claims (6)
1. steam turbine quickly cooling device; It is characterized in that: comprise through what the pipeline of carrying cooling air connected successively compressed-air actuated air compressor (1), oil and water seperator (2), air heater (3) and gas collecting box (4) being provided and controlling the electrical control cabinet of each equipment; Be provided with after-heater (5) between said air heater (3) and the gas collecting box (4); Be provided with first valve (6) between air heater (3) and the after-heater (5); Be provided with the pipeline that is connected gas collecting box (4) through the 3rd valve (8) between parallelly connected second valve (7) that is provided with of air heater (3), air heater (3) and first valve (6) with first valve (6) two ends.
2. steam turbine quickly cooling device as claimed in claim 1 is characterized in that: the secondary oil and water seperator (9) of also connecting behind the oil and water seperator described in the air delivering pipeline (2).
3. steam turbine quickly cooling device as claimed in claim 1; It is characterized in that: be provided with suction valve (10) between said air compressor (1) and the oil and water seperator (2), air heater (3) front end is provided with safety valve (11), pressure gauge (12) and flowmeter (13).
4. steam turbine quickly cooling device as claimed in claim 1 is characterized in that: said gas collecting box (4) is provided with thermometer (14).
5. steam turbine quickly cooling device as claimed in claim 1 is characterized in that: said after-heater (5) is provided with thermometer (15).
6. steam turbine quickly cooling device as claimed in claim 1 is characterized in that: said gas collecting box (4) is provided with the interface (16) that is connected with the live steam pipe of the steam turbine of various types.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202121905U CN202165131U (en) | 2011-06-22 | 2011-06-22 | Rapid cooling device for turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202121905U CN202165131U (en) | 2011-06-22 | 2011-06-22 | Rapid cooling device for turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165131U true CN202165131U (en) | 2012-03-14 |
Family
ID=45800966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202121905U Expired - Fee Related CN202165131U (en) | 2011-06-22 | 2011-06-22 | Rapid cooling device for turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165131U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839998A (en) * | 2011-06-22 | 2012-12-26 | 镇江市科能电力设备有限公司 | Rapid cooling device of steam turbine |
| CN103758586A (en) * | 2013-12-05 | 2014-04-30 | 镇江茂源环保科技有限公司 | Rapid cooling system of steam turbine |
| CN106523042A (en) * | 2016-12-20 | 2017-03-22 | 阳江核电有限公司 | Quick shut-down cooling system and method for steam turbine |
| CN107576559A (en) * | 2017-10-11 | 2018-01-12 | 中国航发北京航空材料研究院 | A kind of cooling system for being used in high frequency fatigue test prevent sample overheat |
-
2011
- 2011-06-22 CN CN2011202121905U patent/CN202165131U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839998A (en) * | 2011-06-22 | 2012-12-26 | 镇江市科能电力设备有限公司 | Rapid cooling device of steam turbine |
| CN103758586A (en) * | 2013-12-05 | 2014-04-30 | 镇江茂源环保科技有限公司 | Rapid cooling system of steam turbine |
| CN106523042A (en) * | 2016-12-20 | 2017-03-22 | 阳江核电有限公司 | Quick shut-down cooling system and method for steam turbine |
| CN107576559A (en) * | 2017-10-11 | 2018-01-12 | 中国航发北京航空材料研究院 | A kind of cooling system for being used in high frequency fatigue test prevent sample overheat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103758586A (en) | Rapid cooling system of steam turbine | |
| CN102839998A (en) | Rapid cooling device of steam turbine | |
| CN202165131U (en) | Rapid cooling device for turbine | |
| WO2017159149A1 (en) | Compressed air energy storage power generation apparatus | |
| CN101949651B (en) | Afterheat double-voltage recovery and generation system of dry cement production line | |
| CN104500158A (en) | Low-concentration coalbed methane or gas electric generating system | |
| CN201502411U (en) | Steam power generating system by utilizing residual heat of converter gas | |
| CN110671158A (en) | High-pressure cylinder air pre-warming and quick-cooling system and adjusting method thereof | |
| CN102839996A (en) | Heating electricity-cooling generation system using steam regenerator | |
| CN203964690U (en) | A kind of flue gas heat recovery device of bell type heating furnace | |
| CN202560330U (en) | Power system utilizing residual pressure in steam of two stages of screw expanders | |
| CN105041704A (en) | Thermal recovery system of centrifugal compressor | |
| CN104482579A (en) | Air cooling unit dual pressure circulating water heating system | |
| CN211314295U (en) | High-pressure cylinder air pre-warming and quick-cooling system | |
| CN206290291U (en) | Steam turbine intelligence quickly cooling device | |
| CN102619567A (en) | Power system utilizing excessive steam pressure of two-stage screw expansion machine | |
| CN203285502U (en) | Prime power supplying system of thermal power plant auxiliary machines | |
| CN201828162U (en) | Residual heat double-pressure recovery generating system of cement production line adopting dry method | |
| CN209085080U (en) | Waste heat recovery system of air compressor | |
| CN109630212A (en) | Temperature Gas-cooled Reactor Helium Gas Turbine electricity generation system | |
| CN205389979U (en) | Big box hatching system with heat recovery | |
| CN203822397U (en) | Low-temperature exhaust heat generating set utilizing paper mill waste steam | |
| CN105705735A (en) | Thermal power plant with use of the waste heat from a generator | |
| RU2629319C1 (en) | Work method of combined heat-and-power station boiler plant | |
| CN211822326U (en) | Waste heat power generation thermal deaerator condensate system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20120622 |