CN204081053U - A kind of siphonic water-collecting well with desalinization water plant - Google Patents

A kind of siphonic water-collecting well with desalinization water plant Download PDF

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Publication number
CN204081053U
CN204081053U CN201420434048.9U CN201420434048U CN204081053U CN 204081053 U CN204081053 U CN 204081053U CN 201420434048 U CN201420434048 U CN 201420434048U CN 204081053 U CN204081053 U CN 204081053U
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China
Prior art keywords
water
collecting well
siphonic
desalinization
pond
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CN201420434048.9U
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Chinese (zh)
Inventor
杨若冰
杜文欣
李京
余兵
金宏
王东海
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China Nuclear Power Engineering Co Ltd
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China Nuclear Power Engineering Co Ltd
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Abstract

The utility model relates to a kind of siphonic water-collecting well with desalinization water plant.Described siphonic water-collecting well comprise connect successively recirculated water drainage pipe 1, pond, siphonic water-collecting well upstream 2, overflow weir 3, pond, siphonic water-collecting well downstream 4 and siphonic water-collecting well drainage pipe 5, be provided with desalinization water plant 6 in the side in pond, described siphonic water-collecting well upstream 2, and be connected with desalinization water plant 6 by the desalinization water sucking mouth 7 being arranged on 2 li, pond, siphonic water-collecting well upstream.Adopt siphonic water-collecting well described in the utility model, recirculated water draining after the power plant's Appropriate application being positioned at cold district can be made to heat up, save desalinization to the required facility expense of former water intensification, save feed water by reverse osmosis pump head, increase the application life of seawater desalination reverse osmosis film, reduce power plant's running cost.

Description

A kind of siphonic water-collecting well with desalinization water plant
Technical field
The utility model belongs to siphonic water-collecting well field, is specifically related to a kind of siphonic water-collecting well with desalinization water plant.
Background technology
Existing power plant open cycle cooling water system is made up of circulating water pump, recirculated water water supply line, condenser, recirculated water drainage pipe and siphonic water-collecting well etc.Siphonic water-collecting well utilizes the negative pressure in siphonage maintenance recirculated water drainage pipe, and the suitable vacuum utilizing current to be formed, makes the cooling water in condenser water box still keep flow regime under negative pressure state, reduces circulating pump head, reduces the consumption of power plant's electricity consumption.As shown in Figure 1, draining enters pond, siphonic water-collecting well upstream 2 from recirculated water drainage pipe 1 to siphonic water-collecting well, by entering pond, siphonic water-collecting well downstream 4 after overflow weir 3, enters sea eventually through siphonic water-collecting well drainage pipe 5.The draining that siphonic water-collecting well receives is the draining heated up after condenser heat exchange, and for the power plant being positioned at north cold area, this part draining is directly discharged without utilization, causes the waste of resource.
Seawater desalination reverse osmosis film has requirement to running temperature, and general reverse osmosis membrane optimum operation temperature is 25 ~ 30 DEG C.Along with inflow temperature reduces, the water flux of reverse osmosis membrane almost linearly declines, and when ocean temperature is lower than when before and after certain value, reverse osmosis membrane, pressure reduction is constant, aquifer yield will significantly reduce.When ocean temperature is too low, for ensureing that power plant is to the demand of the fresh water water yield, namely when sea-water-desalination water producing amount is constant, need take to increase pressure reduction before and after reverse osmosis membrane, or increase the measure such as quantity of reverse osmosis membrane configuration.Before and after increasing, pressure reduction reaction is in the increase of feed water by reverse osmosis pump head, if the front and back pressure reduction of reverse osmosis membrane is excessive, damage will be caused to film, reduce the application life of film, and pump head increase also will increase the consumption of station service, increases the running cost of power plant.Increase the quantity of reverse osmosis membrane configuration, then will improve equipment investment cost, and when ocean temperature height, aquifer yield will be caused excessive or occur idleness of equipment phenomenon, make technological design unreasonable.
Utility model content
For the defect existed in prior art, the purpose of this utility model is to provide a kind of siphonic water-collecting well with desalinization water plant.For the power plant being positioned at north cold area, this siphonic water-collecting well effectively can utilize the warm water after condenser heat exchange, when running under power plant's cryogenic conditions, fetch water before siphonic water-collecting well weir as the former water of desalinization, save feed water by reverse osmosis pump head, save desalinization former water worming-up equipment expense, increase the application life of seawater desalination reverse osmosis film, reduce power plant's running cost.
For reaching above object, the technical solution adopted in the utility model is:
A kind of siphonic water-collecting well with desalinization water plant, comprise connect successively recirculated water drainage pipe, pond, siphonic water-collecting well upstream, overflow weir, pond, siphonic water-collecting well downstream and siphonic water-collecting well drainage pipe, be provided with connected desalinization water plant in the side in pond, described siphonic water-collecting well upstream, and be connected with desalinization water plant by the desalinization water sucking mouth be arranged in pond, siphonic water-collecting well upstream.
Further, the desalinization water intake conduit connecting desalinization water sucking mouth and desalinization water plant adopts the material of seawater corrosion resistance.
Further, described desalinization water sucking mouth is arranged on the bottom in pond, siphonic water-collecting well upstream.
Further, described desalinization water sucking mouth is arranged on the bottom in pond, siphonic water-collecting well upstream through the wall that desalinization water plant and pond, siphonic water-collecting well upstream share.
Effect of the present utility model is: the power plant being positioned at north cold area adopts technical scheme described in the utility model, by increasing desalinization water plant in pond, siphonic water-collecting well upstream, the recirculated water draining after heating up after condenser heat exchange can be effectively utilized, can fetch water before siphonic water-collecting well weir, the recirculated water draining after heating up through condenser interchange of heat is as the former water of desalinization.Decrease and former water is added to the energy of thermal losses, saves the application life of feed water by reverse osmosis pump head, saving desalinization former water worming-up equipment expense, increase seawater desalination reverse osmosis film simultaneously, reduce power plant's running cost.
Accompanying drawing explanation
Fig. 1 is siphonic water-collecting well section of structure of the prior art;
Fig. 2 is the layout plan of the structure of siphonic water-collecting well described in the utility model detailed description of the invention;
In figure: 1 recirculated water drainage pipe, 2 ponds, siphonic water-collecting well upstream, 3 overflow weirs, 4 ponds, siphonic water-collecting well downstream, 5 siphonic water-collecting well drainage pipes, 6 desalinization water plants, 7 desalinization water sucking mouths.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
The utility model improves existing conventional siphonic water-collecting well, by arranging desalinization water plant in side, pond, siphonic water-collecting well upstream, when power plant is run under cryogenic, can fetch water before siphonic water-collecting well weir, the recirculated water draining after heating up through condenser interchange of heat is as the former water of desalinization.
As shown in Figure 2, a kind of novel siphonic water-collecting well with desalinization water plant, comprise connect successively recirculated water drainage pipe 1, pond, siphonic water-collecting well upstream 2, overflow weir 3, pond, siphonic water-collecting well downstream 4 and siphonic water-collecting well drainage pipe 5, be provided with connected desalinization water plant 6 in the side in pond, described siphonic water-collecting well upstream 2, and be connected with desalinization water plant 6 by the desalinization water sucking mouth 7 being arranged on 2 li, pond, siphonic water-collecting well upstream.
In the present embodiment, the desalinization water intake conduit connecting desalinization water sucking mouth 7 and desalinization water plant 6 adopts the material of seawater corrosion resistance, and described desalinization water sucking mouth 7 is arranged on the bottom in pond, siphonic water-collecting well upstream 2.
The utility model is applicable to the siphonic water-collecting well adopting practical weir weir-type or sharp-crested weir weir-type simultaneously.
When the utility model runs under cryogenic for power plant, fetch water as the former water of desalinization before siphonic water-collecting well weir.Desalinization water sucking mouth 7 is arranged on the bottom in pond, siphonic water-collecting well upstream 2 through the wall that desalinization water plant 6 and pond, siphonic water-collecting well upstream 2 share.Desalinization water sucking mouth 7 is arranged apart from the distance bottom pond, siphonic water-collecting well upstream 2 with reference to code requirement; Horizontal range apart from overflow weir 3 need according to different power plant factory site to the requirement etc. of desalinization water withdrawal, determined by physical experiments optimization, to ensure that water level is relatively steady before siphonic water-collecting well weir, reduces the influence of fluctuations that desalinization water intaking produces water level as far as possible.
Can be found out by above-described embodiment, the novel siphonic water-collecting well of the band desalinization water plant that the utility model provides can recirculated water draining after rational and efficient use interchange of heat, when running under power plant's cryogenic conditions, fetch water before siphonic water-collecting well weir as the former water of desalinization, in the application life saved feed water by reverse osmosis pump head, save desalinization former water worming-up equipment expense, increase seawater desalination reverse osmosis film, reduce power plant's running cost.
The siphonic water-collecting well with desalinization water plant described in the utility model is not limited to the embodiment described in detailed description of the invention, those skilled in the art draw other embodiment according to the technical solution of the utility model, belong to technological innovation scope of the present utility model equally.

Claims (4)

1. one kind has the siphonic water-collecting well of desalinization water plant, comprise connect successively recirculated water drainage pipe (1), pond, siphonic water-collecting well upstream (2), overflow weir (3), pond, siphonic water-collecting well downstream (4) and siphonic water-collecting well drainage pipe (5), it is characterized in that: be provided with connected desalinization water plant (6) in the side of pond, described siphonic water-collecting well upstream (2), and be connected with desalinization water plant (6) by the desalinization water sucking mouth (7) being arranged on pond, siphonic water-collecting well upstream (2) inner.
2. a kind of siphonic water-collecting well with desalinization water plant as claimed in claim 1, is characterized in that: connect the material that desalinization water sucking mouth (7) and the desalinization water intake conduit of desalinization water plant (6) adopt seawater corrosion resistance.
3. a kind of siphonic water-collecting well with desalinization water plant as claimed in claim 1 or 2, is characterized in that: described desalinization water sucking mouth (7) is arranged on the bottom in pond, siphonic water-collecting well upstream (2).
4. a kind of siphonic water-collecting well with desalinization water plant as claimed in claim 3, is characterized in that: described desalinization water sucking mouth (7) is arranged on the bottom in pond, siphonic water-collecting well upstream (2) through the wall that desalinization water plant (6) and pond, siphonic water-collecting well upstream (2) share.
CN201420434048.9U 2014-08-01 2014-08-01 A kind of siphonic water-collecting well with desalinization water plant Active CN204081053U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420434048.9U CN204081053U (en) 2014-08-01 2014-08-01 A kind of siphonic water-collecting well with desalinization water plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420434048.9U CN204081053U (en) 2014-08-01 2014-08-01 A kind of siphonic water-collecting well with desalinization water plant

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105895179A (en) * 2016-04-13 2016-08-24 中国核电工程有限公司 Method of using nuclear power plant cooling tower waste heat to heat sea light raw water and reduce warm water discharge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105895179A (en) * 2016-04-13 2016-08-24 中国核电工程有限公司 Method of using nuclear power plant cooling tower waste heat to heat sea light raw water and reduce warm water discharge
CN105895179B (en) * 2016-04-13 2021-11-16 中国核电工程有限公司 Method for heating sea fresh water by using waste heat of cooling tower of nuclear power plant and reducing warm water discharge

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