CN106017127A - Condenser multi-stage steam injection vacuum system capable of comprehensively recycling heat - Google Patents
Condenser multi-stage steam injection vacuum system capable of comprehensively recycling heat Download PDFInfo
- Publication number
- CN106017127A CN106017127A CN201610497769.8A CN201610497769A CN106017127A CN 106017127 A CN106017127 A CN 106017127A CN 201610497769 A CN201610497769 A CN 201610497769A CN 106017127 A CN106017127 A CN 106017127A
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- China
- Prior art keywords
- heat exchanger
- steam
- pipe heat
- level
- condenser
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/10—Auxiliary systems, arrangements, or devices for extracting, cooling, and removing non-condensable gases
Abstract
The invention discloses a condenser multi-stage steam injection vacuum system capable of comprehensively recycling heat. The condenser multi-stage steam injection vacuum system comprises a vacuum-pumping pipeline connected to a condenser and a power steam pipeline connected to auxiliary steam; a cooling water pipeline is connected to a condensed water pipeline of a shaft seal heater in parallel; core equipment comprises a first-stage steam injector, a second-stage steam injector, a first-stage tubular type heat exchanger and a second-stage tubular type heat exchanger. The condenser multi-stage steam injection vacuum system adopts condensed water as cooling water, recycles heat of auxiliary steam and dead steam in a heat exchange mode, and returns the recycled heat to a condensed water system, so that regenerative efficiency of a power plant is improved. The steam injector and the tubular type heat exchangers do not have a rotary part, so that power is not consumed, and operation is stable, and therefore, economical efficiency and safety of the condenser multi-stage steam injection vacuum system are further improved; and the condenser multi-stage steam injection vacuum system has the advantages of saving energy and reducing consumption.
Description
Technical field
The present invention relates to a kind of condenser multistage steam injection vacuum system, be specifically related to what a kind of heat integration recycled
Condenser multistage steam injection vacuum system.
Background technology
In thermal power plant, water ring vacuum pump is generally used to extract incoagulable gas in condenser, to guarantee condenser
Vacuum.The working solution of water ring vacuum pump is water, and its design temperature is usually 15 DEG C, if the temperature of working solution is higher than it
Design load, can make working solution vaporize, so that vacuum pump generation cavitation, causes the efficiency of vacuum pump to decline, thus
The vacuum causing condenser declines, and then makes decrease in power generation efficiency.
In actual motion, owing to acting and water vapour release gasification latent heat can cause working solution temperature constantly to raise.Therefore,
For ensureing the work efficiency of water ring vacuum pump, working solution is typically required and is cooled down by recirculated cooling water.But circulate cold
But coolant-temperature gage was affected by season, and summer is along with the rising of circulating cooling coolant-temperature gage so that the temperature of working solution often wants height
In design load.
CN103334969A (publication date is on October 02nd, 2013) discloses one can make condenser vacuum all the time
Maintaining high-caliber modified model condenser vacuum system, it uses steam jet ejector individually to control single condenser, or control
Make several condensers being in parallel, the port of export of condenser is connected on water ring vacuum pump, going out of water ring vacuum pump
Connect on mouth pipeline and constitute the steam-water separator of vacuum system, working solution heat exchanger with it.
Although the using effect of above-mentioned prior art is preferable, it is also possible to meet the needs of most client, but still suffer from very
Big room for promotion: such as limited by the self performance of condenser, can only by the heat in auxiliary vapour and condenser exhaust steam with
The form of condensed water reclaims, and the heat water that is cooled is taken away, it is impossible to must by the time recycle so that the economy of this vacuum system
Property, the aspect such as security reliability still suffer from certain improvement and optimize space, original intention institute of these the technology of the present invention research and development just
?.
Summary of the invention
For the above-mentioned technical problem overcoming prior art to exist, the present inventor is through further investigation, it is provided that a kind of structure letter
Single, heat energy recovery rate high, has the employing of preferable economy and stability condenses water and cool down Water Sproading as pipe heat exchanger
The condenser multistage steam injection vacuum system of auxiliary vapour and condenser exhaust steam heat.
The present invention is achieved through the following technical solutions, the condenser multistage steam injection vacuum that a kind of heat integration recycles
System, including: including: first order steam jet ejector, second level steam jet ejector, first order pipe heat exchanger, second
Level pipe heat exchanger；Described first order steam jet ejector is connected with vacuum-pumping pipeline, power steam pipeline respectively, described
The outlet of first order steam jet ejector is connected at the vapour side entrance of described first order pipe heat exchanger；Described second level steam
Ejector is connected with vapour side outlet, the power steam pipeline of described first order pipe heat exchanger respectively, and the described second level is steamed
The outlet of vapour ejector is connected at the vapour side entrance of described second level pipe heat exchanger；Described second level pipe heat exchanger
Vapour side outlet is discharged into air；Described first order pipe heat exchanger, described second level pipe heat exchanger use and condense water as cold
But water, is extracted the heat of auxiliary vapour and condenser exhaust steam, and returns condensate system by heat exchange mode, described first order pipe
Formula heat exchanger, described second level pipe heat exchanger condensing hot air furnace to condenser hotwell.
Preferably, the water side entrance end of described first order pipe heat exchanger and described second level pipe heat exchanger is all from condensing water
System intercepts, and returns again to condensate system after heat exchange.
Preferably, described first order pipe heat exchanger, the cooling water pipeline of described second level pipe heat exchanger are parallel to condense
Water pump, gland heater, low-pressure heater pipeline above, the most additionally increasing on the premise of condensate pump output loading
The purpose fully reclaimed by auxiliary steam turbine condenser exhaust steam heat can be realized.
Compared with prior art, beneficial effects of the present invention is as follows: the pipe heat exchanger of the present invention uses and condenses water as cold
But water, is different from conventional vapor injection vacuum system pipe heat exchanger and uses recirculated water or opened water as cooling water, it is to avoid
Cooled down by cooling tower again after recirculated water or opened water temperature rise and cause the loss of heat.Condense water by the way of heat exchange
Reclaim auxiliary vapour and the heat of condenser exhaust steam, return again to condensate system, make the effectiveness of regenerator of heat regenerative system be improved.
And use steam jet ejector and pipe heat exchanger, and not power consumption, without rotating machinery, improve system economy and safety,
There is safe and reliable to operation, non-maintaining advantage.The present invention can be designed as two-stage injection or three grades of injections as required, dynamic
Consumption and the cost of investment of power steam will determine the specific design mode of condenser multistage steam injection vacuum system.Cause
This, the economy of condenser steam injection vacuum system, security reliability that the present invention provides are further improved,
There is energy-saving and cost-reducing advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structure enlarged diagram of the power plant vacuum system in Fig. 1.
In figure: 1 be vacuum-pumping pipeline, 2 for power steam pipeline, 3-1 be first order steam jet ejector, 3-2 be second
Level steam jet ejector, 4 it is that first order pipe heat exchanger, 5-2 are second level pipe heat exchanger, 6 are for condenser, 5-1
Gland heater, 7 be condensate pump, 8 be power plant vacuum system, 9 be low-pressure heater, 10 for condenser hotwell.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in those skilled in the art
Member is further appreciated by the present invention, but limits the present invention the most in any form.It should be pointed out that, the common skill to this area
For art personnel, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement.These broadly fall into
Protection scope of the present invention.
The condenser multistage steam injection vacuum system that heat integration as shown in Figure 1 recycles, including: with condenser
Power steam pipeline 2 that the vacuum-pumping pipeline 1 that 4 connect connects with auxiliary steam, the condensation being parallel to gland heater 6
Water lines, first order steam jet ejector 3-1, second level steam jet ejector 3-2, first order pipe heat exchanger 5-1, second
Level pipe heat exchanger 5-2, condensate pump 7 and power plant vacuum system 8 (as shown in Figure 2)；First order steam jet ejector
3-1 is connected with vacuum-pumping pipeline 1, power steam pipeline 2 respectively, and the outlet of first order steam jet ejector 3-1 connects
At the vapour side entrance of first order pipe heat exchanger 5-1；Second level steam jet ejector 3-2 respectively with first order pipe type heat transfer
The vapour side outlet of device 5-1, power steam pipeline 2 are connected, and the outlet of second level steam jet ejector 3-2 is connected to second
At the vapour side entrance of level pipe heat exchanger 5-2, the vapour side outlet of second level pipe heat exchanger 5-2 is discharged into air；The first order
Pipe heat exchanger 5-1, the cooling water pipeline of second level pipe heat exchanger 5-2 be parallel to condensate line (condensate pump 7 →
The pipeline of gland heater 6 → low-pressure heater 9) top, return again to condensate system by heat exchange temperature rise, condensation
Water Sproading is to condenser hotwell 10.
First order steam jet ejector, second level steam jet ejector, with steam as dynamic medium, produce Supersonic by power jet
Rapid fire stream, causes vacuum in head chamber, extracts the vapour gas mixture in condenser, first order pipe heat exchanger respectively,
The vapour gas mixture being drawn out of in power steam and condenser enters pipe heat exchanger, and pipe heat exchanger is carried out by condensing water
Cooling, is condensed water and is changed to condensate system, tubular type by the heat of the form auxiliary vapour of recovery of heat exchange temperature rise with condenser exhaust steam
The condensing hot air furnace of hot device is to condenser hotwell.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned spy
Determining embodiment, those skilled in the art can make various deformation or amendment within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.
Claims (3)
1. the condenser multistage steam injection vacuum system that a heat integration recycles, it is characterised in that including: the
One-level steam jet ejector, second level steam jet ejector, first order pipe heat exchanger, second level pipe heat exchanger；Described
One-level steam jet ejector is connected with vacuum-pumping pipeline, power steam pipeline respectively, going out of described first order steam jet ejector
Mouth is connected at the vapour side entrance of described first order pipe heat exchanger；Described second level steam jet ejector is respectively with described first
The level vapour side outlet of pipe heat exchanger, power steam pipeline are connected, and the outlet of described second level steam jet ejector is connected to
At the vapour side entrance of described second level pipe heat exchanger；The vapour side outlet of described second level pipe heat exchanger is discharged into air；Institute
State first order pipe heat exchanger, described second level pipe heat exchanger uses condensation water as cooling water, is carried by heat exchange mode
Take the heat of auxiliary vapour and condenser exhaust steam, and return condensate system, described first order pipe heat exchanger, the described second level
The condensing hot air furnace of pipe heat exchanger is to condenser hotwell.
The condenser multistage steam injection vacuum system that a kind of heat integration the most as claimed in claim 1 recycles, its
Being characterised by, the water side entrance end of described first order pipe heat exchanger and described second level pipe heat exchanger is all from condensing water system
System intercepts, and returns again to condensate system after heat exchange.
The condenser multistage steam that a kind of heat integration the most as claimed in claim 1 or 2 recycles sprays vacuum system
System, it is characterised in that described first order pipe heat exchanger, the cooling water pipeline of described second level pipe heat exchanger are parallel to
Condensate pump, gland heater, low-pressure heater pipeline above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610497769.8A CN106017127A (en) | 2016-06-28 | 2016-06-28 | Condenser multi-stage steam injection vacuum system capable of comprehensively recycling heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610497769.8A CN106017127A (en) | 2016-06-28 | 2016-06-28 | Condenser multi-stage steam injection vacuum system capable of comprehensively recycling heat |
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| Publication Number | Publication Date |
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| CN106017127A true CN106017127A (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610497769.8A Pending CN106017127A (en) | 2016-06-28 | 2016-06-28 | Condenser multi-stage steam injection vacuum system capable of comprehensively recycling heat |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643204A (en) * | 2017-01-05 | 2017-05-10 | 陆明 | Three-stage switchable steam jetting and vacuumizing system low in steam consumption |
| CN107062933A (en) * | 2017-04-28 | 2017-08-18 | 程琛 | A kind of heat-exchange method of efficient energy-saving condenser steam injection vacuum system and its heat exchanger |
| CN107062927A (en) * | 2017-04-19 | 2017-08-18 | 北京今大禹环境技术股份有限公司 | A kind of desalinization inversely cools down fixed gas system and its technique with multistage condenser |
| CN110108133A (en) * | 2018-12-24 | 2019-08-09 | 程琛 | A kind of connection of the steam-sprayed pumped vacuum systems cooling water heat exchanger of condenser and heat recovery method |
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|---|---|---|---|---|
| JPS5749004A (en) * | 1980-09-10 | 1982-03-20 | Hitachi Ltd | In-flowing device for bypassing steam to condenser of turbine |
| CN103940255A (en) * | 2014-04-11 | 2014-07-23 | 张曙光 | Multistage steam jet vacuum-pumping system with double backpressure steam condensers |
| CN204064015U (en) * | 2014-09-04 | 2014-12-31 | 程晋瑞 | A kind of condenser steam injection vacuum system for energy conservation transformation of power plants type |
| CN104613791A (en) * | 2015-01-29 | 2015-05-13 | 程琛 | Condenser steam injection vacuum system comprising vacuum mixed heat exchange system |
| CN205748028U (en) * | 2016-06-28 | 2016-11-30 | 程晋瑞 | The condenser multistage steam injection vacuum system that a kind of heat integration recycles |
-
2016
- 2016-06-28 CN CN201610497769.8A patent/CN106017127A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749004A (en) * | 1980-09-10 | 1982-03-20 | Hitachi Ltd | In-flowing device for bypassing steam to condenser of turbine |
| CN103940255A (en) * | 2014-04-11 | 2014-07-23 | 张曙光 | Multistage steam jet vacuum-pumping system with double backpressure steam condensers |
| CN204064015U (en) * | 2014-09-04 | 2014-12-31 | 程晋瑞 | A kind of condenser steam injection vacuum system for energy conservation transformation of power plants type |
| CN104613791A (en) * | 2015-01-29 | 2015-05-13 | 程琛 | Condenser steam injection vacuum system comprising vacuum mixed heat exchange system |
| CN205748028U (en) * | 2016-06-28 | 2016-11-30 | 程晋瑞 | The condenser multistage steam injection vacuum system that a kind of heat integration recycles |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643204A (en) * | 2017-01-05 | 2017-05-10 | 陆明 | Three-stage switchable steam jetting and vacuumizing system low in steam consumption |
| CN107062927A (en) * | 2017-04-19 | 2017-08-18 | 北京今大禹环境技术股份有限公司 | A kind of desalinization inversely cools down fixed gas system and its technique with multistage condenser |
| CN107062927B (en) * | 2017-04-19 | 2024-02-06 | 北京今大禹环境技术股份有限公司 | Multistage condenser reverse cooling noncondensable gas system for sea water desalination and process thereof |
| CN107062933A (en) * | 2017-04-28 | 2017-08-18 | 程琛 | A kind of heat-exchange method of efficient energy-saving condenser steam injection vacuum system and its heat exchanger |
| CN110108133A (en) * | 2018-12-24 | 2019-08-09 | 程琛 | A kind of connection of the steam-sprayed pumped vacuum systems cooling water heat exchanger of condenser and heat recovery method |
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Application publication date: 20161012 |