CN201397058Y - Steam-extracting cooling system for improving vacuumizing effect of condenser - Google Patents
Steam-extracting cooling system for improving vacuumizing effect of condenser Download PDFInfo
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- CN201397058Y CN201397058Y CN2009200256741U CN200920025674U CN201397058Y CN 201397058 Y CN201397058 Y CN 201397058Y CN 2009200256741 U CN2009200256741 U CN 2009200256741U CN 200920025674 U CN200920025674 U CN 200920025674U CN 201397058 Y CN201397058 Y CN 201397058Y
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Abstract
The utility model discloses a steam-extracting cooling system for improving the vacuumizing effect of a condenser. The utility model solves the problem of the high water consumption of the vacuumizingsystem of the prior condenser. The utility model has the advantages that the steam-extracting cooling system can improve the working capacity of the water-jetting steam extractor or the water ring vacuum pump, improve the vacuum degree of the condenser, increase the generated energy of the steam turbine and save a great deal of cooling water. The structure of the steam-extracting cooling system is as follows: the steam-extracting cooling system comprises a steam-extracting cooling unit, a signal detection unit, a control unit and a vacuumizing unit, wherein the steam-extracting cooling unit is mounted behind the extract opening of the condenser, the steam-extracting cooling unit is communicated with a cooling tube, a control unit is mounted on the cooling tube, the signal detection unit is mounted on the steam-extracting cooling unit, the signal detection unit acts along with the control unit, and the steam-extracting cooling unit is also respectively connected with the steam-extracting cooling unit and the condenser through tubes.
Description
Technical field:
The utility model relates to the condenser vacuum extractor of steam turbine, relates in particular to a kind of cooling system that draws gas that condenser vacuumizes effect that improves.
Technical background:
The vacuum of condenser has very important influence to the economy and the security of Turbo-generator Set, and condenser vacuum descends, and the unit generation coal consumption is increased, and the exhaust casing temperature raises, and influences the steam turbine safe and stable operation.At present the vacuum of Turbo-generator Set condenser generally adopts jetting (or vapour) air ejector or water ring vacuum pump to reach from the condenser gas mixture that outwards draws gas.From the steam-air mixture of condenser extraction, steam accounts for 2/3 generally speaking, and air accounts for 1/3.Steam in the mixture has reduced the ability to work of jetting vapor extractor or water ring vacuum pump on the one hand, working-medium water with jetting vapor extractor, the empty pump of water ring water heats on the other hand, thereby reduced the performance of water jet air ejector or water ring vacuum pump, for the performance that guarantees jetting vapor extractor or water ring vacuum pump just needs constantly to replenish cold water, to guarantee the working-medium water temperature, make the total water consumption of pumped vacuum systems increase.
Summary of the invention:
The purpose of this utility model is exactly in order to solve the big problem of pumped vacuum systems water consumption of present condenser, a kind of ability to work that both can improve jetting vapor extractor or water ring vacuum pump is provided, improve the vacuum of condenser, increased the generated energy of steam turbine, the raising condenser of saving a large amount of cooling waters again vacuumizes the cooling system that draws gas of effect.
For achieving the above object, the utility model adopts following technical scheme:
A kind ofly improve the cooling system that draws gas that condenser vacuumizes effect, it comprises the cooling device of bleeding, signal supervisory instrument, control device and vacuum extractor, after the cooling device of wherein bleeding is installed in the condenser bleeding point, the cooling device of bleeding is communicated with cooling line, control device is installed on the cooling line, signal supervisory instrument is installed on the cooling device of bleeding, signal supervisory instrument and control device interlock; The cooling device of bleeding also is connected with condenser with vacuum extractor respectively by pipeline.
The described cooling device of bleeding is an augmentor condenser, and it adopts the column plate spray structure, and augmentor condenser is connected with the condenser bleeding point by pipeline; Augmentor condenser also is connected with demineralized water by cooling line.
Described control device is the electric control valve that is installed on the cooling water pipeline, and described signal supervisory instrument is a thermal resistance; Electric control valve and thermal resistance interlock.
Described vacuum means is changed to water-ring vacuum pump.
The utility model by steam-air mixture before entering water jet air ejector or water ring vacuum pump at first by the cooler that draws gas, allow the steam in the steam-air mixture in cooler, condense, incoagulable then gas enters water jet air ejector or water ring vacuum pump again, does the ability to work that can improve jetting vapor extractor or water ring vacuum pump greatly like this.Improve the vacuum of condenser, increased the generated energy of steam turbine, and will save a large amount of cooling waters.
Behind the condenser bleeding point, install augmentor condenser additional, first from the vapour oxygen mixture that condenser is extracted out through drawing gas cooler, make the steam condensation in cooler earlier in the mist, can not enter into water-ring vacuum pump again by noncondensing gas then, by water-ring vacuum pump it is extracted out, thus the requirement of the vacuum full scale unit safety operation of assurance condenser.
The beneficial effects of the utility model are: simple in structure, can improve the ability to work of jetting vapor extractor or water ring vacuum pump greatly.Improve the vacuum of condenser, increased the generated energy of steam turbine, and will save a large amount of cooling waters.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Wherein, 1, augmentor condenser 2, electric control valve 3, thermal resistance 4, water-ring vacuum pump.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Augmentor condenser 1 is the column plate spray structure, the steam of mist all can be condensed, steam is condensed needs then to guarantee that temperature is than low in the condenser in the augmentor condenser 1, thereby on augmentor condenser 1 dress thermal resistance 3, at the demineralized water feed pipe is to control the desalination water yield that sprays into by electric control valve 2 on the cooling line, the measuring-signal of thermal resistance 3 passes on the electric control valve 2, control the size of the cooling water inflow that the aperture of electric control valve 2 promptly enters by the signal of telecommunication, thermal resistance 3 and electric control valve 2 link, and realize controlling automatically the purpose of the temperature in the augmentor condenser 1 by their actings in conjunction.Augmentor condenser 1 also is connected with condenser with water-ring vacuum pump 4 respectively by pipeline.
This way is tested on certain 50MW of power plant unit, has obtained good result, condenser vacuum can be improved 1%, and gross coal consumption rate reduces by 1%, and annual 302 tons of the standard coals of saving are saved 220 tons of demineralized waters.Install the analysis of augmentor condenser energy-saving principle additional:
Pressure in the condenser is the partial pressure sum of the saturation pressure and the air of steam, is by the temperature of recirculated water and the decision of the air capacity in the condenser.Circulating water temperature is low more, and corresponding saturated vapour pressure is low more, and the condenser air content is lower, and the dividing potential drop of air is lower.Circulating water temperature is subjected to the influence of natural conditions, can not arbitrarily reduce, and has only the minimizing that the content of air can be artificial, and the one, reduce the amount of bleeding as far as possible; The 2nd, strengthen aspiration.This just needs to improve the performance of air ejector to strengthen aspiration, and installing the cooler that draws gas additional is the important measures that improve the performance of drawing gas, and after the steam in the steam-air mixture was condensed, under the condition that does not change former vapor extractor parameter, the tolerance of finding time can be multiplied.Can make condenser vacuum improve about 1%.Gross coal consumption rate reduces by 1%.
, widely-used in the steam jet refrigerating system at the pre-installed augmentor condenser of vacuum ejector at multi-effect evaporation system, remarkable to the energy consumption effect that reduces vacuum system.
Claims (4)
1. one kind is improved the cooling system that draws gas that condenser vacuumizes effect, it is characterized in that, it comprises the cooling device of bleeding, signal supervisory instrument, control device and vacuum extractor, after the cooling device of wherein bleeding is installed in the condenser bleeding point, the cooling device of bleeding is communicated with cooling line, control device is installed on the cooling line, and signal supervisory instrument is installed on the cooling device of bleeding, signal supervisory instrument and control device interlock; The cooling device of bleeding also is connected with condenser with vacuum extractor respectively by pipeline.
2. raising condenser as claimed in claim 1 vacuumizes the cooling system that draws gas of effect, it is characterized in that, the described cooling device of bleeding is an augmentor condenser, and it adopts the column plate spray structure, and augmentor condenser is connected with the condenser bleeding point by pipeline; Augmentor condenser also is connected with demineralized water by cooling line.
3. raising condenser as claimed in claim 1 or 2 vacuumizes the cooling system that draws gas of effect, it is characterized in that, described control device is the electric control valve that is installed on the cooling water pipeline, and described signal supervisory instrument is a thermal resistance; Electric control valve and thermal resistance interlock.
4. raising condenser as claimed in claim 1 vacuumizes the cooling system that draws gas of effect, it is characterized in that, described vacuum means is changed to water-ring vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200256741U CN201397058Y (en) | 2009-05-19 | 2009-05-19 | Steam-extracting cooling system for improving vacuumizing effect of condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200256741U CN201397058Y (en) | 2009-05-19 | 2009-05-19 | Steam-extracting cooling system for improving vacuumizing effect of condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397058Y true CN201397058Y (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200256741U Expired - Lifetime CN201397058Y (en) | 2009-05-19 | 2009-05-19 | Steam-extracting cooling system for improving vacuumizing effect of condenser |
Country Status (1)
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| CN (1) | CN201397058Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807846A (en) * | 2012-12-19 | 2014-05-21 | 苟仲武 | Vacuum exhaust heating device and method for recycling heat |
| CN105180672A (en) * | 2015-10-26 | 2015-12-23 | 张斌 | Energy-saving optimization device adopting intelligent temperature control technology to improve vacuum degree of condenser |
| CN106052414A (en) * | 2016-06-28 | 2016-10-26 | 中广核工程有限公司 | Condenser vacuum-pumping system and method |
| CN107062935A (en) * | 2017-05-18 | 2017-08-18 | 华电电力科学研究院 | Small steam turbine rough vacuum automatic regulating system and its operating method |
-
2009
- 2009-05-19 CN CN2009200256741U patent/CN201397058Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807846A (en) * | 2012-12-19 | 2014-05-21 | 苟仲武 | Vacuum exhaust heating device and method for recycling heat |
| CN103807846B (en) * | 2012-12-19 | 2016-04-27 | 苟仲武 | The method of vacuum exhaust heater and heat recovery recycling |
| CN105180672A (en) * | 2015-10-26 | 2015-12-23 | 张斌 | Energy-saving optimization device adopting intelligent temperature control technology to improve vacuum degree of condenser |
| CN106052414A (en) * | 2016-06-28 | 2016-10-26 | 中广核工程有限公司 | Condenser vacuum-pumping system and method |
| CN106052414B (en) * | 2016-06-28 | 2018-05-29 | 中广核工程有限公司 | Evacuation system for steam condenser and condenser vacuum pumping method |
| CN107062935A (en) * | 2017-05-18 | 2017-08-18 | 华电电力科学研究院 | Small steam turbine rough vacuum automatic regulating system and its operating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JI'NAN POWER EQUIPMENT FACTORY CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110526 Address after: 250100 No. 18 Huaxin Road, Lixia District, Shandong, Ji'nan Co-patentee after: Ji'nan Power Equipment Factory Co., Ltd. Patentee after: Qilu Motor Manufacturing Co., Ltd., Shandong Address before: 250100 No. 18 Huaxin Road, Lixia District, Shandong, Ji'nan Patentee before: Qilu Motor Manufacturing Co., Ltd., Shandong |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100203 |
|
| CX01 | Expiry of patent term |