CN102107919A - Overflow water distributor for low-temperature multiple-effect distillation seawater desalination system - Google Patents
Overflow water distributor for low-temperature multiple-effect distillation seawater desalination system Download PDFInfo
- Publication number
- CN102107919A CN102107919A CN2009102613752A CN200910261375A CN102107919A CN 102107919 A CN102107919 A CN 102107919A CN 2009102613752 A CN2009102613752 A CN 2009102613752A CN 200910261375 A CN200910261375 A CN 200910261375A CN 102107919 A CN102107919 A CN 102107919A
- Authority
- CN
- China
- Prior art keywords
- overflow
- water distributor
- overflow water
- seawater desalination
- nipples
- Prior art date
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000013535 sea water Substances 0.000 title claims abstract description 25
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 15
- 238000004821 distillation Methods 0.000 title abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 22
- 210000002445 nipple Anatomy 0.000 claims description 18
- 239000006200 vaporizer Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention belongs to the technical field of seawater desalination and relates to a water distributor for a low-temperature multiple-effect distillation seawater desalination system. The water distributor contains an overflow tray and an overflow short pipe, wherein the overflow tray is arranged above the heat transfer tube bundle of an evaporator; the overflow tray is rectangular and has the same size with the water-receiving surface of the heat transfer tube bundle; a water-retaining weir is arranged around the overflow tray, the overflow short pipe is arranged on the baseplate perpendicularly; and the top of the overflow short pipe is provided with a square notch, and the position of the overflow short pipe the corresponding heat transfer tube bundle. The water distributor of the invention fully utilizes the material and has the advantages of low impact on the heat transfer tube bundle, high scaling and blocking resistance, small floor space and the like.
Description
Technical field
The invention belongs to field of sea water desalting technology, be specifically related to a kind of water distributor that is used for low temperature multiple-effect distillation seawater desalination system.
Background technology
In the existing low-temperature multiple-effect seawater desalination system, each effect of vaporizer mainly comprises the tube sheet at horizontally disposed heating surface bank, tube bank two ends and the liquid distributor of tube bank top etc., wherein liquid distributor adopts the water distribution manner of shower nozzle spray mostly, with seawater from top spray to heating surface bank, evaporate.Shower nozzle spray zone is a circle, and heating surface bank to be subjected to the water surface be rectangle; The district needs to adopt a plurality of shower nozzles to make up for complete covering tube bank, and circular overlapping region water is many, other regional waters are few, the problem of the whole water distribution inequality of tube bank but still have, and causes the waste of material water.Seawater is higher from the speed of shower nozzle ejection, and the pipe row of the superiors is subjected to the seawater gouging abrasion serious.The shower nozzle bore is generally smaller, and the easy fouling of shower nozzle is stopped up.Shower nozzle has a fixed spray angle, and shower nozzle and interbank need the reservation than large space, the area that makes spray cover is bigger, but takies big quantity space.
Summary of the invention
The purpose of this invention is to provide a kind of overflow water distributor, to address the above problem.
Another object of the present invention provides a kind of low-temperature multiple-effect seawater desalination evaporator that uses this overflow water distributor.
The 3rd purpose of the present invention provides a kind of low-temperature multiple-effect seawater desalination system that uses this overflow water distributor.
Describe for convenient, content of the present invention will be used following term, but these terms can not limit the present invention.
" vertically " of using among the present invention refers to along the heating surface bank central axis direction, and " laterally " refers to the interior direction perpendicular to the heating surface bank central shaft of horizontal plane.
Overflow water distributor of the present invention comprises seal cup and overflow nipples.Seal cup is arranged on heat-transfer pipe of evaporator Shu Shangfang 10～100mm place, and seal cup is a rectangle, and size is subjected to the water surface identical with heating surface bank.Be provided with overfall around the seal cup, base plate is vertically installed overflow nipples, and the diameter of overflow nipples is 6～12mm, highly is 50～100mm; The position of the corresponding heating surface bank in the position of overflow nipples, transverse pitch depends on the tube spacing of below heating surface bank, is half of below heating surface bank tube spacing; Longitudinal pitch is 20～50mm.There is square breach on the overflow nipples top, and notch depth is 5～10mm.
Low-temperature multiple-effect seawater desalination evaporator of the present invention, its water-distributing device are the overflow water distributor.
Low-temperature multiple-effect seawater desalination of the present invention system, wherein the water-distributing device of vaporizer is the overflow water distributor.
Overflow water distributor usefulness of the present invention is: the trickle zone is subjected to water surface shape, big or small identical with heating surface bank, can evenly, intactly cover whole tube bank district, makes material water be fully utilized thermally equivalent; Seawater to tube bank, impacts very for a short time from the seal cup free-falling to the pipe row of the superiors, reduce the loss of heating surface bank; Adopt seal cup cloth liquid, overflow nipples is many and spacing is little, is unlikely to occur large stretch of dried wall phenomenon, and the resistive connection dirt property stopped up is strong; Tube bank and seal cup distance are near, and it is little to take up room, and the entire equipment structure is compact more.
Description of drawings
Fig. 1 is a water distributor synoptic diagram of the present invention;
Fig. 2 is a water distributor sectional view of the present invention;
Wherein, 1 among Fig. 1 and Fig. 2 is heating surface bank, the 2nd, and seal cup, the 3rd, overflow nipples, the 4th, square breach.
Embodiment
With embodiment the present invention is described in conjunction with the accompanying drawings, but the present invention is not limited to this.
The form evaporator of low temperature multiple-effect distillation seawater desalination system is a level pipe falling liquid film multiple-effect evaporator, and it is 6 effects that vaporizer is imitated number, and every effect is restrained the long-pending 1.963m * 5.98m of being of required cloth liquid level.Seal cup is lifted on heating surface bank top, bottom surface and tube pitch 50mm by pull bar.The seal cup area is 2m * 6m, and the overfall height is 80mm all around.Below heat transfer tube specification is φ 25 * 1mm, and tube spacing is 34mm.The overflow nipples diameter is 8mm, and length is 50mm, and transverse pitch is 17mm, and longitudinal pitch is 20mm, and square notch depth is 5mm.Overflow nipples quantity is 115 * 300.Seal cup and downtake material are the 316L stainless steel.
Seawater is from the seawater inlet access arrangement at vaporizer top, divide equally earlier and enter the female pipe of two seawater, evenly establish 8 arms on every female pipe, seawater is fallen on the seal cup along arm, square breach overflow from the short tube top enters overflow nipples then, is subjected to thermal evaporation on the heating surface bank below dropping onto along overflow nipples.Because the shape of seal cup, size and heating surface bank are subjected to the shape, big or small consistent of the water surface, the material water of sprinkle can intactly cover heating surface bank, and heat transfer area is fully used.The overflow nipples spacing is little, is evenly distributed, and material water sprinkle equably is able to abundant evaporation on heating surface bank, effectively utilize the heat of heating surface bank.To tube bank, the surging force that the superiors are restrained is little, can reduce the loss of heating surface bank from the seal cup free-falling for seawater.Distance between heating surface bank and the seal cup is closer, and compact construction makes that vaporizer and seawater desalination system occupation space are little.
Claims (9)
1. an overflow water distributor comprises seal cup and overflow nipples, it is characterized in that: seal cup is a rectangle, is provided with overfall all around, the vertical overflow nipples of installing on the base plate, and there is square breach on the overflow nipples top.
2. overflow water distributor according to claim 1 is characterized in that: seal cup is arranged on heat-transfer pipe of evaporator Shu Shangfang 10～100mm place.
3. overflow water distributor according to claim 2 is characterized in that: the seal cup size is subjected to the water surface identical with heating surface bank.
4. overflow water distributor according to claim 1 is characterized in that: the overflow nipples diameter is 6～12mm, highly is 50～100mm.
5. overflow water distributor according to claim 4 is characterized in that: the overflow nipples longitudinal pitch is from being 20～50mm.
6. overflow water distributor according to claim 5 is characterized in that: the overflow nipples transverse pitch is from being half of heating surface bank tube spacing.
7. overflow water distributor according to claim 1 is characterized in that: square notch depth is 5～10mm.
8. low-temperature multiple-effect seawater desalination evaporator, it is characterized in that: described vaporizer comprises the arbitrary described overflow water distributor of claim 1～7.
9. low-temperature multiple-effect seawater desalination system is characterized in that: described low-temperature multiple-effect seawater desalination system comprises the arbitrary described overflow water distributor of claim 1～7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102613752A CN102107919B (en) | 2009-12-23 | 2009-12-23 | Overflow water distributor for low-temperature multiple-effect distillation seawater desalination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102613752A CN102107919B (en) | 2009-12-23 | 2009-12-23 | Overflow water distributor for low-temperature multiple-effect distillation seawater desalination system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102107919A true CN102107919A (en) | 2011-06-29 |
| CN102107919B CN102107919B (en) | 2012-12-19 |
Family
ID=44172216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102613752A Active CN102107919B (en) | 2009-12-23 | 2009-12-23 | Overflow water distributor for low-temperature multiple-effect distillation seawater desalination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102107919B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285606A (en) * | 2012-02-24 | 2013-09-11 | 珠海格力电器股份有限公司 | Falling film device and sea water desalting plant |
| CN107120990A (en) * | 2017-05-09 | 2017-09-01 | 中国船舶重工集团公司第七二五研究所 | A kind of seawater distributor of open-frame type gasifier |
| CN108721926A (en) * | 2018-06-04 | 2018-11-02 | 东南大学 | A kind of Falling Film Evaporator of Horizontal Tube |
| CN110615493A (en) * | 2019-10-24 | 2019-12-27 | 大连理工大学 | Spraying plate type liquid distributor with guide pipe |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241573Y (en) * | 1995-12-27 | 1996-12-04 | 化学工业部上海化工研究院 | Liquid collecting distributer |
| CN201610386U (en) * | 2009-12-23 | 2010-10-20 | 中国神华能源股份有限公司 | Overflow water distributing device used for low-temperature multiple-effect distilled seawater desalting system |
-
2009
- 2009-12-23 CN CN2009102613752A patent/CN102107919B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285606A (en) * | 2012-02-24 | 2013-09-11 | 珠海格力电器股份有限公司 | Falling film device and sea water desalting plant |
| CN107120990A (en) * | 2017-05-09 | 2017-09-01 | 中国船舶重工集团公司第七二五研究所 | A kind of seawater distributor of open-frame type gasifier |
| CN108721926A (en) * | 2018-06-04 | 2018-11-02 | 东南大学 | A kind of Falling Film Evaporator of Horizontal Tube |
| CN108721926B (en) * | 2018-06-04 | 2021-04-27 | 东南大学 | Horizontal pipe falling film evaporator |
| CN110615493A (en) * | 2019-10-24 | 2019-12-27 | 大连理工大学 | Spraying plate type liquid distributor with guide pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102107919B (en) | 2012-12-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |