CN1046984C - Defoaming system for water draining channel of electric power station - Google Patents
Defoaming system for water draining channel of electric power station Download PDFInfo
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- CN1046984C CN1046984C CN 95119820 CN95119820A CN1046984C CN 1046984 C CN1046984 C CN 1046984C CN 95119820 CN95119820 CN 95119820 CN 95119820 A CN95119820 A CN 95119820A CN 1046984 C CN1046984 C CN 1046984C
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- power plant
- check dam
- dam
- firepower
- power
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Abstract
The present invention relates to a defoaming system for a drain channel of a fire-power (nucleus) power plant. A lower stream of a retaining dam [1] of the drain channel is provided with a water storage pool [2] and a check dam [4] which has the same height with the retaining dam; the bottom of the check dam is provided with a water drawing pipe [5] which is respectively communicated with the bottom of the water storage pool [2] in the front of the check dam [4] and a generator set [6] at the back of the check dam [4]; a drain pipe [9] opens into sea level. The defoaming system not only can effectively solve the problem which can not be better solved for a long term that environments are polluted by a large amount of foam generated during the drain process of the fire-power (nucleus) power plant, but also fully utilizes the potential energy of drained water to generate power. The present invention has the advantage of long-term running for power generation and has good economic benefits and social benefits.
Description
The invention belongs to, be specifically related to a kind of firepower/escape canal froth breaking system of nuclear power plant.
At present, with the large-scale firepower/nuclear plant of seawater as a recirculated cooling water of condenser, in order to prevent the influence of tidal fluctuations, guarantee condensing chamber siphon, all build a checkdam at the coolant outlet place, cooling water goes out through the checkdam overflow after discharging.Because the effect of the height of water, draining is at the bottom of near the dam time, and potential energy is transformed into kinetic energy, and flow velocity increases, current drop above clearing, swiftly flowing water fully contacts with air, carries a large amount of air, produces a large amount of foams and enters the sea and form the several kilometers foam long queues of being continuous, the natural views at beach have been destroyed, at strong wind or storm wind weather, these foams blow at a distance, become environmental protection problem anxious to be solved.Along with developing rapidly of large-scale firepower or nuclear power plant, the pollution problem of draining foam is more and more outstanding, and countries in the world are all in the method for seeking to solve, as:
1. install drencher head additional at the water channel head, the dosing spray is eliminated foam.With the special efficacy defoamer froth breaking of the NALCO131 trade mark, though the froth breaking effect is arranged, the expense costliness, and cause pollution to environment, therefore, now forbidden practicality.
2. the collection foam focuses on.Set up the floating dam retaining and cut foam, be pumped to vacuum pump and store froth breaking in the container, investment is big, and maintenance workload is big, is difficult to apply.
3. build floating dam interception foam, eliminate foam with shower water.The method, also because the spray system one-time investment is big, long-time maintenance expense height, and also defoaming effectiveness lacks practicality only about 50% equally.
Therefore, existing debubbling method fails to solve effectively the foam pollution problem of large-scale firepower or nuclear power plant mostly.
The object of the present invention is to provide a kind of new technology that can effectively eliminate firepower or nuclear power plant's escape canal foam.
Firepower of the present invention/escape canal froth breaking system of nuclear power plant, it is characterized in that in the checkdam downstream of escape canal reservoir being set reaches and check dam, check dam bottom be provided with an aqueduct respectively with this check dam before the bottom of reservoir and the hydraulic generator unit in the generator room behind this check dam be connected, the draining mouth of pipe of hydraulic generator unit leads to 0.5-1 rice under the sea level.
Invention main points of the present invention are the water storage sealing process by reservoir of setting up behind the checkdam of power plant and check dam, and at the bottom of the dam behind the diversion and power water velocity slow down, do not contact again with air, thereby both avoided the generation of foam in drainage procedure, can utilize the drop generating of draining again, kill two birds with one stone.Be a kind of not only effectively but also the froth breaking system of practical large-scale firepower/nuclear power plant's escape canal.
The check dam that the present invention is provided with preferably with the height of the checkdam of former escape canal about equally, can make row of horizontal cross checkdam quietly and flow in the reservoir like this, carry a large amount of air when avoiding draining to drop and produce foam, water inlet at the generating set of generator room should be kept certain height with the bottom of reservoir, usually at b.s.l. 2-3 rice, the glassware for drinking water that goes out from the reservoir underflow with assurance has enough potential energy to promote the hydraulic turbine generator group, and arranges to the sea smoothly.
In order to guarantee that the present invention can generate electricity by froth breaking, do not influence again or the normal draining of firepower/nuclear power plant, preferably adopt two hydraulic generator units in the system, every circulation area can both absolutely satisfy the requirement of maximum displacement, at ordinary times, an operation, one is standby, also should be provided with simultaneously equal flow and with the bypass gutter of hydraulic turbine intake equivalent locations, to guarantee still draining under two whole failure conditions of the hydraulic turbine.
Usually also safe overfall is set in that checkdam and reservoir are other, it highly is not higher than the height of checkdam, and when guaranteeing that above-mentioned two kinds of safeguards systems break down simultaneously, power plant cooling water discharges smoothly from this safe overfall.
When implementing froth breaking scheme of the present invention, consider the variation of seawer tide height, factors such as the drop of draining and flow concrete, for the less power plant's draining of draining drop, generated energy is few, the cost height, needn't generate electricity, can realize still draining by froth breaking of the present invention system; For the big power plant's draining of draining drop, by generated energy, not only be recoverable to investment, and, produce good economic benefits along with the increase of running time.
Therefore, adopt firepower of the present invention/escape canal froth breaking system of nuclear power plant, can not only solve effectively and fail the pollution problem of a large amount of foams of producing in firepower/nuclear power plant's drainage procedure of fine solution for a long time environment, and the potential energy that has made full use of discharge water generates electricity, reclaim waterpower resourses, non-secondary pollution, safe and reliable to operation.Long-time running, the benefit that generating is produced has good economic and social benefit much larger than the investment of froth breaking system.
Below in conjunction with accompanying drawing firepower of the present invention/escape canal froth breaking system of nuclear power plant is described further:
Fig. 1 is firepower of the present invention/nuclear power plant's escape canal froth breaking system flow schematic diagram.
Fig. 2 is firepower of the present invention/nuclear power plant's escape canal froth breaking system flow vertical view.
Fig. 3 is firepower/nuclear power plant of the present invention former escape canal drainage flow path schematic diagram.
As Fig. 1, shown in 2, firepower of the present invention/escape canal froth breaking system of nuclear power plant, reservoir [2] is set in checkdam [1] downstream of escape canal to be reached and the contour check dam [4] of checkdam, one aqueduct [5] is set in check dam bottom is connected with the bottom of the preceding reservoir [2] of this check dam [4] and the hydraulic generator unit [6] in the generator room [7] behind this check dam [4] respectively, the draining mouth of pipe [9] of hydraulic generator unit [6] leads to the sea.
With the checkdam equal-height position safe overfall [3] is set in that checkdam [1] and reservoir [2] are other, hydraulic turbine intake equivalent locations establish one with the bypass gutter [8] of the equal flow of aqueduct [5].
Claims (3)
1. firepower/escape canal froth breaking system of nuclear power plant, it is characterized in that checkdam [1] downstream at escape canal be provided with reservoir [2] and with check dam [4], one aqueduct [5] is set in check dam bottom is connected with the bottom of the preceding reservoir [2] of this check dam [4] and the hydraulic generator unit [6] in the generator room [7] behind this check dam [4] respectively, the draining mouth of pipe [9] of hydraulic generator unit [6] leads to b.s.l. 0.5-1 rice.
2. firepower as claimed in claim 1/escape canal froth breaking system of nuclear power plant is characterized in that at checkdam [1] and reservoir [2] is other and the checkdam equal-height position is provided with safe overfall [3].
3. firepower as claimed in claim 1 or 2/escape canal froth breaking system of nuclear power plant, it is characterized in that hydraulic turbine intake equivalent locations establish one with the bypass gutter [8] of the equal flow of aqueduct [5].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95119820 CN1046984C (en) | 1995-11-29 | 1995-11-29 | Defoaming system for water draining channel of electric power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95119820 CN1046984C (en) | 1995-11-29 | 1995-11-29 | Defoaming system for water draining channel of electric power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1155604A CN1155604A (en) | 1997-07-30 |
| CN1046984C true CN1046984C (en) | 1999-12-01 |
Family
ID=5082182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95119820 Expired - Lifetime CN1046984C (en) | 1995-11-29 | 1995-11-29 | Defoaming system for water draining channel of electric power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1046984C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045791A (en) * | 2022-05-31 | 2022-09-13 | 中核核电运行管理有限公司 | Power generation method driven by recovered energy of nuclear power cooling circulating water system |
-
1995
- 1995-11-29 CN CN 95119820 patent/CN1046984C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1155604A (en) | 1997-07-30 |
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Granted publication date: 19991201 |
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