CN87214093U - Multiple-stage flash tower type multiple-effect evaporator - Google Patents
Multiple-stage flash tower type multiple-effect evaporator Download PDFInfo
- Publication number
- CN87214093U CN87214093U CN198787214093U CN87214093U CN87214093U CN 87214093 U CN87214093 U CN 87214093U CN 198787214093 U CN198787214093 U CN 198787214093U CN 87214093 U CN87214093 U CN 87214093U CN 87214093 U CN87214093 U CN 87214093U
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- CN
- China
- Prior art keywords
- effect
- effect evaporator
- tower
- evaporation
- water
- 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.)
- Withdrawn
Links
- 238000001704 evaporation Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000008020 evaporation Effects 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 241000233855 Orchidaceae Species 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000012153 distilled water Substances 0.000 abstract description 3
- 238000010612 desalination reaction Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 239000011552 falling film Substances 0.000 abstract 1
- 239000013505 freshwater Substances 0.000 abstract 1
- 238000007701 flash-distillation Methods 0.000 description 6
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 238000010792 warming Methods 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
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model belongs to a multi-effect evaporator. Combination of multiple-stage flash and multiple-effect evaporation and multiple-effect structure with coil pipe falling-film type are used, and each effect preheater composed as a whole is provided with the multi-effect evaporator side by side. The utility model has the advantages of high heat transfer coefficient, big quantity of water evaporating, small steam consumption, low height of the apparatus, easy maintenance, having an application for production of distilled water, desalination of fresh water, sewage disposal and concentration of solutions.
Description
The invention belongs to multi-effect evaporator.
The tower multi-effect evaporator of Sheng Chaning in the past, though more advantage is arranged as N.C.85200595, but when on existing equipment, further increasing evaporation capacity, following point can appear: because the coiled pipe pipe inner flow passage sectional area of evaporimeter is little, just each effect should not be coagulated water and feed down effect in turn, and water all directly drains into condenser as imitating each with fixed attention, then the discharging of water and fixed gas all should be very careful with fixed attention, otherwise condenser duty is increased, make troubles to operation.Simultaneously, imitate the steam of sending here for the end, must add cooling water can be with its whole condensations.In addition, increase evaporation capacity the shell of evaporimeter is directly increased, shell wall thickens, and flange increases the weight of, and the advantage of evaporimeter material-saving weakens.Simultaneously, when the coiled pipe number of plies increased, manufacture difficulty increased.
The objective of the invention is to invent the tower multi-effect evaporator of a kind of multistage flash evaporation, to solve former tower multi-effect evaporator owing to increasing the problem that aquifer yield is brought.
Of the present invention being constructed as follows:
The tower multi-effect evaporator of multistage flash evaporation of the present invention, it is characterized in that multistage flash evaporation combines with multiple-effect evaporation, adopt the tower multiple-effect structure of coiled pipe falling liquid film, each effect is given hot device composition one and multi-effect evaporator is placed side by side, first imitates at top of tower, have 3～12 to imitate, be equipped with the flow regulation valve of normal osculum and detachable feed liquid distributor bottom each is imitated.
The material water distributor of the above-mentioned tower multi-effect evaporator of multistage flash evaporation is a multiaperture-type, and the woven wire demister is equipped with in its central authorities.The flash-off steam fairlead is housed on the porous plate, and the steam that flash distillation is come out causes the evaporating space below the distributor.The material water distributor is contained in the hold-down ring of seal washer, and hold-down ring is sandwiched in adjacent two and follows between the orchid good seal.
Above-mentioned multistage flash evaporation multi-effect evaporator gives hot device with a cover and can parallel connection 1～2 overlap evaporimeter, and when also di-overlapped evaporimeter, evaporation capacity can double.
Multistage flash evaporation is that material liquid is given hot device cascade raising temperature through at different levels, in a superheater, be heated at last above 5～15 ℃ of first order solution evaporating temperatures, first temperature of imitating solution is reduced in decompression back flash distillation (be partially liq absorb self sensible heat and vaporize), temperature.After this concentrating feed liquid flows through at different levels in turn, reduce pressure step by step and lower the temperature, in at different levels, all there is flash-off steam to produce, utilize this steam to make fresh feed liquid cascade raising temperature, steam is emitted behind the latent heat self condensation, this is a method commonly used in the desalination process, and multistage flash evaporation is combined with multiple-effect evaporation promptly becomes multistage multiple-effect evaporation.
Accompanying drawing is that to imitate with six be the structure and the schematic flow sheet of example.
Material liquid (1) by the road enters pump (2), again through valve (3), flowmeter (4), filter (5) enters in the coiled pipe (7) of condenser (6), give hot device coiled pipe (16) through each effect then, (15), (14), (13), (12), superheater coil (11), feed liquid is warming up to therein above behind 5～15 ℃ of the first effect solution temperatures, enter first and imitate flash chamber (71), the flash distillation of part feed liquid produces steam, enter first single-effect evaporator (21) through steam pipe (81), evaporation material water is not showered into first equably through distributor (41) and imitates the evaporating coil outer surface, be subjected to thermal evaporation, the indirect steam that the indirect steam that is produced produces with flash distillation is through demister, steam connection tube (57) enters in the coiled pipe (32) of second single-effect evaporator (22), unevaporated feed liquid drains into second flash chamber (72) of imitating via the ball-cock assembly (61) with normal osculum, and flash distillation produces steam.Below each is imitated and to imitate until the end by the same manner work.Concentrate is imitated through ball-cock assembly (66) and delivery pipe (111) discharge in the end.For distilled water production, material water can enter pump (2) through the pipeline (110) of effect bottom, end and recycle.For the occasion of solution concentration, shut off valve (112) does not make the concentrate circulation.(3), valve (38) enter coiled pipe (31), condensation after throttle orifice (91) enters superheater (11) by the road in first heating steam of imitating, the required heat of superheater is except that coagulating water provides, and not enough part is replenished through throttle orifice (91) by the steam in the coiled pipe (31).The water with fixed attention of superheater and incoagulable gas are discharged through cherishing formula steam trap (10).The second effect heating vapour-condensing water enters second effect through throttle orifice (92) and gives hot device (12), gives the not enough heat of hot device (12), and is additional through the steam that throttle orifice (92) comes by the second effect evaporation tube (32).The water that coagulates that gives hot device (12) flow to triple effect through throttle orifice (17) and gives hot device (13), and the water that coagulates that comes with third effect evaporator coiled pipe (33) converges and flows into quadruple effect through throttle orifice (18) and give hot device.The fixed gas that respectively gives hot device gives hot device (16) in company with coagulating water by flowing to last the effect under imitating, and coagulates water and flows into condenser (6) via throttle orifice (97).Incoagulable gas drains into condenser (6) through throttle orifice (67).The indirect steam that imitate at the end enters condenser (6) through steam pipe (99), converges with the water that coagulates from throttle orifice (97) after the condensation, is sent to hopper by steam trap (9).
Flash chamber is positioned at the top of each single-effect evaporator.
This equipment is used for distilled water production, desalinization, sewage disposal and solution and concentrates.
Advantage of the present invention is as follows:
1, multistage flash evaporation combines with multiple-effect evaporation, has improved output.
2, flash distillation requires a large amount of feed water, and it is even to be conducive to the tube surface moisture film, improves heat-transfer effect.
3, no dead angle in the coiled pipe, fixed gas is unimpededly discharged from throttle orifice in company with solidifying water and steam, guarantees to have very big heat transfer coefficient in the pipe.
4, evaporimeter and give hot device and be divided into two row has reduced device height (the effect number is constant), has reduced steam consumption quantity, and without cooling water. Do not have in the evaporimeter and give hot device dividing plate, easy access is convenient to respectively imitate the ball float level controller control valve by dress.
5, each single-effect evaporator is by imitating the number order from top to bottom, and each imitate coagulate water out all be higher than corresponding each imitate and give the import of hot device, so the possibility of no ponding, help antifreeze with prevent germ contamination.
6, structure of distributor is simple, and is welded into integral body with demister, flash-off steam delivery pipe, packing ring pressure ring, is convenient to install maintenance.
7, utilized the space that forms between the end socket of distributor and its top as flash chamber, do not arranged proprietary position in addition, so total height is low.
Claims (3)
1, the tower multi-effect evaporator of a kind of multistage flash evaporation, it is characterized in that multistage flash evaporation combines with multiple-effect evaporation, adopt the tower multiple-effect structure of coiled pipe falling liquid film, each effect is given hot device composition one and multi-effect evaporator is placed side by side, first imitates at top of tower, have 3～12 to imitate, be equipped with the flow regulation valve of normal osculum and detachable material water distributor bottom each is imitated.
2, the tower multi-effect evaporator of multistage flash evaporation according to claim 1, it is characterized in that the feed liquid distributor is a multiaperture-type, the woven wire demister is equipped with in the central authorities of feed liquid distributor, the flash-off steam fairlead is housed on the porous plate, the material water distributor is contained in the hold-down ring of seal washer, and hold-down ring is sandwiched in adjacent two and follows between the orchid.
3, according to claim 1, the tower multi-effect evaporator of 2 described multistage flash evaporations, it is characterized in that giving hot device with a cover can 1～2 cover evaporimeter in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198787214093U CN87214093U (en) | 1987-10-05 | 1987-10-05 | Multiple-stage flash tower type multiple-effect evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198787214093U CN87214093U (en) | 1987-10-05 | 1987-10-05 | Multiple-stage flash tower type multiple-effect evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87214093U true CN87214093U (en) | 1988-08-17 |
Family
ID=4828485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198787214093U Withdrawn CN87214093U (en) | 1987-10-05 | 1987-10-05 | Multiple-stage flash tower type multiple-effect evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87214093U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302828C (en) * | 2005-06-23 | 2007-03-07 | 西安交通大学 | Apparatus for heat recoverin multigrade flash desalting of sea water |
| CN1502560B (en) * | 2002-11-27 | 2010-05-05 | 北京环能海臣科技有限公司 | Hot vapour heating heat siphon circulation evaporator surface film multi-effect evaporation desalting apparatus |
| CN102179056A (en) * | 2011-02-11 | 2011-09-14 | 李宗发 | Five-stage high-efficiency flash evaporating, concentrating and drying machine |
| CN103335297A (en) * | 2013-07-22 | 2013-10-02 | 王瑞良 | Full-automatic industrial flash evaporator |
| CN103737150A (en) * | 2013-12-04 | 2014-04-23 | 江苏民生特种设备集团有限公司 | Welding method of CO2 flashing tower |
-
1987
- 1987-10-05 CN CN198787214093U patent/CN87214093U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1502560B (en) * | 2002-11-27 | 2010-05-05 | 北京环能海臣科技有限公司 | Hot vapour heating heat siphon circulation evaporator surface film multi-effect evaporation desalting apparatus |
| CN1302828C (en) * | 2005-06-23 | 2007-03-07 | 西安交通大学 | Apparatus for heat recoverin multigrade flash desalting of sea water |
| CN102179056A (en) * | 2011-02-11 | 2011-09-14 | 李宗发 | Five-stage high-efficiency flash evaporating, concentrating and drying machine |
| CN102179056B (en) * | 2011-02-11 | 2013-08-21 | 李宗发 | Five-stage high-efficiency flash evaporating, concentrating and drying machine |
| CN103335297A (en) * | 2013-07-22 | 2013-10-02 | 王瑞良 | Full-automatic industrial flash evaporator |
| CN103737150A (en) * | 2013-12-04 | 2014-04-23 | 江苏民生特种设备集团有限公司 | Welding method of CO2 flashing tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |