CN209279705U - A kind of condenser vacuum raising device for power plant - Google Patents
A kind of condenser vacuum raising device for power plant Download PDFInfo
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- CN209279705U CN209279705U CN201821942749.8U CN201821942749U CN209279705U CN 209279705 U CN209279705 U CN 209279705U CN 201821942749 U CN201821942749 U CN 201821942749U CN 209279705 U CN209279705 U CN 209279705U
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- condenser
- cooler
- ball
- mixture conduit
- vapour mixture
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Abstract
The utility model discloses a kind of condenser vacuums for power plant to improve device, including the upstream gas vapour mixture conduit being connect with condenser, the upstream gas vapour mixture conduit is connected with cooler, and the upstream gas vapour mixture conduit enters cooler with tangential way, rotate mixed gas along cooler spiral inner wall formula, it is connected with chemical moisturizing pipeline close to cooler top side, generates atomized water inside cooler with the gas in the upstream gas vapour mixture conduit；The cooler is connected with lower faint breath vapour mixture conduit, and the lower faint breath vapour mixture conduit is also connected with water ejector；The condenser is connected with cooling water inlet pipe road and cooling water outlet pipe road.Compared with prior art, water vapour can be effectively reduced to the resistance of ducting of vapor extractor in the utility model, in the case where vacuum evacuation device suction capactity is constant, have larger improve to the vacuum degree of condenser.
Description
Technical field
The utility model relates to power plant's production technical fields, and in particular to a kind of condenser vacuum raising for power plant
Device.
Background technique
Condenser is the important composition component of power plant unit, and height and the condenser vacuum of Benefit of Unit have compared with high point
System, having become influences an important factor for unit heat economy improves, from the point of view of thermodynamic consideration, thermal power unit condenser vacuum
Decline 1%, power generation heat consumption just rise 1%, decrease of power generation 1%.The condenser pipe of vapor to vapor extractor during taking out air
Road resistance and corrosion are affected to the vacuum degree of condenser, in Condenser Extraction System, the gas extracted out from condenser
Having 2/3 in vapour mixture is water vapour, and 1/3 is air, it is seen then that the resistance for evacuating feed channel is mainly the flow resistance of water vapour
With the flow resistance of air, wherein water vapour weight is 5-8 times of air weight, therefore water vapor stream dynamic resistance accounts for exhausted big portion
Point, if can make to evacuate the water recovery in feed channel, only air, the specific gravity of air flowed in the pipeline is much smaller than
Water vapour, then the flow resistance of gas will be greatly reduced, in the case where vacuum evacuation device suction capactity is constant, it is assumed that original suction
Ability is 100 cubic metres of gas, vapour mixture per hour, the then gas that can be extracted out out of condenser, vapour mixture about 300-400
Cubic meter, substantially improves condenser vacuum.
In addition in long-term use, pipeline is easy fouling to the condenser in power plant, causes dirt in condenser pipe to block, causes
The heat exchange efficiency of condenser reduces, and causes the increase of steam turbine exhaust pressure, eventually leads to the loss of generating set output energy.
The condenser of present most of power plant contamination phenomenon all different there is degree, so that the vacuum degree of condenser declines, unit
Thermal efficiency of cycle reduce, to influence the safety and economy of unit, how can effectively clear the dirt of condenser,
An important factor for as condenser vacuum is improved, now using rubber ball cleaning mode than wide, but in actual use,
Expose some disadvantages: such as manual stoppage scrubs, and needs load shedding or shut down to carry out, and the labor intensity of worker is larger；
Although acid wash cleaning is cleaner, tube wall can be caused to damage, and cost is also high；Using high pressure water rinse, dry-cleaning or
It when penetrating ball cleaning, needs to shut down operation, affects the normal production of power plant, and condenser is in dirt within a very long time
It is run under dye state.
Summary of the invention
To solve drawbacks described above, the purpose of the utility model is to provide a kind of condenser vacuums for power plant to improve dress
It sets, water vapour can not only be effectively reduced to the resistance of ducting of vapor extractor, and effectively the dirt of condenser can be cleaned, it is right
The vacuum degree of condenser has larger improve.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of condenser vacuum for power plant
Device is improved, including the upstream gas vapour mixture conduit connecting with condenser, the upstream gas vapour mixture conduit is connected with cold
But device, and the upstream gas vapour mixture conduit enters cooler with tangential way, makes mixed gas along cooler spiral inner wall
Formula rotation is connected with chemical moisturizing pipeline close to cooler top side, with the gas in the upstream gas vapour mixture conduit
Atomized water is generated inside cooler；The cooler is connected with lower faint breath vapour mixture conduit, the lower faint breath vapour mixture
Pipeline is also connected with water ejector；The condenser is connected with cooling water inlet pipe road and cooling water outlet pipe road；Condenser
Vacuum-degree increasing device further includes rubber ball cleaning mechanism, and the rubber ball cleaning mechanism includes two at cooling water inlet pipe road
Secondary strainer, the secondary filter are connected with ball collector, Rubber ball pump and ball screen in turn, and the ball screen is set to cooling water outlet pipe
At road, the ball collector is equipped with ball collector switching valve.
Further, the cooler bottom is also connected with condenser hotwell, and the condenser hotwell passes through connection condensing
Device deoxygenation pipeline carries out deoxygenation.
Ball collector outlet electrical ball valve is additionally provided between the ball collector and the secondary filter.
Ball collector entrance electrical ball valve is equipped between the ball collector and the Rubber ball pump.
The beneficial effects of the utility model are: structure is simple, small in size, investment is small, heat exchange efficiency is high；Eliminate jetting pumping
The vaporization of hydrophone throat and the fouling induced and pipe vibration, stable and reliable operation greatly reduce maintenance cost and maintenance
The work of personnel；By the device, due to by the intracorporal water recovery of gaseous mixture, gas vapour mixture conduit inlet pressure with
In the case that suction chamber pressure difference is constant, the air capacity of water jet air ejector extraction must be increased, to improve the true of condenser
It is empty；Additionally by above-mentioned apparatus, after water recovery, pump-line flow resistance reduces, and is equally beneficial for water jet air ejector
Suction capactity, the partial pressure of air reduces in condenser, and terminal temperature difference reduces, heat-transfer effect enhancing, while oxygen content of condensate
It reduces, is conducive to improve low pressure heat-transfer effect, reduces low pressure metal oxidation corrosion speed；It is effectively eliminated by rubber ball cleaning mechanism solidifying
Dirt in vapour device has larger help to the raising of condenser vacuum.
Detailed description of the invention
Below according to accompanying drawings and embodiments, the structure and features of the utility model is further described.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of rubber ball cleaning mechanism described in the utility model.
In attached drawing 2,1. ball screens, 2. Rubber ball pumps, 3. ball collector entrance electrical ball valves, 4. ball collectors, the switching of 5. ball collectors
Valve, 6. ball collectors export electrical ball valve, 7. secondary filters, 8. cooling water inlet pipe roads, 9. cooling water outlet pipe roads.
Specific embodiment
It is an embodiment of the present invention referring to attached drawing 1, discloses a kind of condenser vacuum for power plant and mention
High device, including the upstream gas vapour mixture conduit connecting with condenser, the upstream gas vapour mixture conduit is connected with cooling
Device, and the upstream gas vapour mixture conduit enters cooler with tangential way, makes mixed gas along cooler spiral inner wall formula
Rotation is connected with chemical moisturizing pipeline close to cooler top side, exists with the gas in the upstream gas vapour mixture conduit
Atomized water is generated inside cooler；The cooler is connected with lower faint breath vapour mixture conduit, the lower faint breath vapour mixing property management
Road is also connected with water ejector；The condenser is connected with cooling water inlet pipe road and cooling water outlet pipe road；Condenser is true
It further includes rubber ball cleaning mechanism that reciprocal of duty cycle, which improves device, and the rubber ball cleaning mechanism includes two at cooling water inlet pipe road 8
Secondary strainer 7, the secondary filter 7 are connected with ball collector 4, Rubber ball pump 2 and ball screen 1 in turn, and the ball screen 1 is set to cooling water
At outlet conduit 9, the ball collector 4 is equipped with ball collector switching valve 5.
Further, the cooler bottom is also connected with condenser hotwell, and the condenser hotwell passes through connection condensing
Device deoxygenation pipeline carries out deoxygenation.
Ball collector outlet electrical ball valve 6 is additionally provided between the ball collector 4 and the secondary filter 7.
Ball collector entrance electrical ball valve 3 is equipped between the ball collector 4 and the Rubber ball pump 2.
When the utility model at work, from the upstream gas vapour mixture conduit that condenser comes out, by gas vapour mixture band
Enter in cooler, chemical moisturizing pipeline generates atomized water by keeping the skin wet inside cooler, and upstream gas vapour mixing property management
Road enters cooler by tangential manner, make mixed gas along cooler spiral inner wall formula rotate, and with atomized water counter current contacting,
The gas vapour mixed gas come with condenser exchanges heat, and makes the intracorporal water recovery of gaseous mixture after heat exchange, and with atomized water one
It rises and is flowed out through cooler bottom bottom, into condenser hotwell；After the intracorporal water vapour of gaseous mixture sufficiently condenses in cooler,
Remaining air flows out at the top of cooler, enters in water jet air ejector by lower faint breath vapour mixture conduit and is discharged；
Rubber ball cleaning mechanism at work, when glueballs be added ball collector after, start Rubber ball pump, glueballs by Rubber ball pump than
Under the slightly higher water flow of cooling water pressure drives, into condenser input end, each cooling of condenser is mixed into together with cooling water
In pipeline；Glueballs is the elastomer of porous softness, so compressive deformation is generated under lesser differential pressure action enters cooling tube, and
And inside pipe wall is smeared wiping one time during traveling in cooling tube；After glueballs flows out cooling tube, it is under own resilient effect
It restores to the original state, thus removes the dirt on glueballs surface, it, also will be clear in flow process even if glueballs surface also some dirts
It removes, and as cooling water flows to ball screen, in the leukorrhagia of rushing of net wall blocked with cooling water, glueballs enters net bottom, due to glueballs
Pump water inlet nozzle connects here, therefore glueballs is inhaled into pump under the import suction function of pump, after glueballs obtains power in pump,
It is again introduced into ball collector and repeats the above movement.
Described above is only the preferred embodiment of the utility model, and above-mentioned specific embodiment is not to the utility model
Limitation, retouching, modification or the equivalent replacement that all those skilled in the art are made as described above belong to this reality
With novel protection scope.
Claims (4)
1. a kind of condenser vacuum for power plant improves device, including the upstream gas vapour mixing property management connecting with condenser
Road, it is characterised in that: the upstream gas vapour mixture conduit is connected with cooler, and the upstream gas vapour mixture conduit is to cut
Line mode enters cooler, rotates mixed gas along cooler spiral inner wall formula, close to being connected with of cooler top side
The gas learned in moisturizing pipeline, with the upstream gas vapour mixture conduit generates atomized water inside cooler；The cooler
It is connected with lower faint breath vapour mixture conduit, the lower faint breath vapour mixture conduit is also connected with water ejector；The condenser
It is connected with cooling water inlet pipe road and cooling water outlet pipe road；It further includes rubber ball cleaning mechanism that condenser vacuum, which improves device,
The rubber ball cleaning mechanism includes the secondary filter at cooling water inlet pipe road, and the secondary filter is connected with dress ball in turn
Room, Rubber ball pump and ball screen, the ball screen are set at cooling water outlet pipe road, and the ball collector switches equipped with ball collector
Valve.
2. the condenser vacuum according to claim 1 for power plant improves device, it is characterised in that: the cooler
Bottom is also connected with condenser hotwell, and the condenser hotwell carries out deoxygenation by connection deaeration in condenser pipeline.
3. the condenser vacuum according to claim 2 for power plant improves device, it is characterised in that: the ball collector
Ball collector outlet electrical ball valve is additionally provided between the secondary filter.
4. the condenser vacuum according to claim 3 for power plant improves device, it is characterised in that: the ball collector
Ball collector entrance electrical ball valve is equipped between the Rubber ball pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821942749.8U CN209279705U (en) | 2018-11-23 | 2018-11-23 | A kind of condenser vacuum raising device for power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821942749.8U CN209279705U (en) | 2018-11-23 | 2018-11-23 | A kind of condenser vacuum raising device for power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209279705U true CN209279705U (en) | 2019-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821942749.8U Active CN209279705U (en) | 2018-11-23 | 2018-11-23 | A kind of condenser vacuum raising device for power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418404A (en) * | 2021-06-21 | 2021-09-21 | 中国舰船研究设计中心 | Condensed steam device is penetrated to ship shell type altogether |
-
2018
- 2018-11-23 CN CN201821942749.8U patent/CN209279705U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418404A (en) * | 2021-06-21 | 2021-09-21 | 中国舰船研究设计中心 | Condensed steam device is penetrated to ship shell type altogether |
| CN113418404B (en) * | 2021-06-21 | 2023-11-24 | 中国舰船研究设计中心 | Ship hull co-injection condensed steam device |
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