CN100475300C - Anti-deposition anti-crystallization method of evaporator - Google Patents
Anti-deposition anti-crystallization method of evaporator Download PDFInfo
- Publication number
- CN100475300C CN100475300C CNB2007100698530A CN200710069853A CN100475300C CN 100475300 C CN100475300 C CN 100475300C CN B2007100698530 A CNB2007100698530 A CN B2007100698530A CN 200710069853 A CN200710069853 A CN 200710069853A CN 100475300 C CN100475300 C CN 100475300C
- Authority
- CN
- China
- Prior art keywords
- inert solid
- evaporation tube
- solid particle
- solution
- evaporating pipe
- 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.)
- Expired - Fee Related
Links
- 238000002425 crystallisation Methods 0.000 title claims abstract description 10
- 238000001704 evaporation Methods 0.000 claims abstract description 76
- 239000007787 solid Substances 0.000 claims abstract description 55
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 239000013078 crystal Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 13
- 230000008020 evaporation Effects 0.000 claims description 62
- 239000002245 particle Substances 0.000 claims description 45
- 238000000034 method Methods 0.000 claims description 11
- 230000001351 cycling effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Physical Vapour Deposition (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses an evaporator anti-scale and anti-crystallization method and device. In the shell and tube evaporator arranged vertically, inert solid grains are arranged in an evaporating pipe, the density of the inert solid grains is larger than that of the evaporated solution which passes through the evaporating pipe interstitially; when the evaporated solution passes through the evaporating pipe at a fall speed larger than that of the inert solid grains and the inert solid grains are propped in block to the upper end of the evaporating pipe by the solution, the inert solid grains block takes effect of cleaning dirt and crystal on the surface of the evaporating pipe; when the solid grains are pushed to the upper end of the evaporating pipe, the evaporated solution transmitting to the evaporating pipe is stopped, the inert solid grains return to the bottom end in block again, and takes the effect of cleaning dirt and crystal on the surface of the evaporating pipe again. The circle operation can keep the evaporating surface clean. The surface of the evaporating pipe is not sticked by dirt and crystal, because the inert solid grains clean the wall surface continuously and disturb the heat transfer bounding layer, the heat transfer effect get improved.
Description
Technical field
The present invention relates to evaporimeter, especially relate to a kind of method of evaporimeter anti-deposition anti-crystallization.
Background technology
Evaporimeter is used in a large number in the industry, when unclean solution or the solution of easily separating out crystallization are evaporated, easily produce dirt or crystal on the evaporimeter heat-transfer area, heat exchange efficiency is reduced, even evaporimeter can not be worked, use evaporimeter of the present invention and both can realize augmentation of heat transfer, can prevent fouling or crystallization on the heat-transfer surface again.
Summary of the invention
The object of the present invention is to provide a kind of method and device thereof of evaporimeter anti-deposition anti-crystallization.
The technical scheme that the present invention solves its technical problem employing is:
1, a kind of method of evaporimeter anti-deposition anti-crystallization:
In the vertical shell and tube evaporator of placing, evaporation tube is built-in with inert solid particle, inert solid particle density is greater than being evaporated solution density, be evaporated solution and pass through this evaporation tube in mode intermittently, be evaporated solution with greater than the speed of inert solid particle sinking speed during by evaporation tube, inert solid particle is pushed to the evaporation tube upper end to become bulk by solution, in this process, the effect of dirt on the cleaning evaporation tube face or crystal will be played by inert solid particle group, when solid particle is pulled to the evaporation tube upper end, stop to be evaporated solution to the evaporation tube conveying, this moment, inert solid particle became bulk to fall again to be back to the evaporation tube bottom, and in this process, inert solid particle group plays the effect of dirt on the cleaning evaporation tube face or crystal again, so cycling can keep the evaporating surface cleaning.
2, a kind of device of evaporimeter anti-deposition anti-crystallization:
Two or more vertical shell and tube evaporators of placing are connected in parallel, promptly the solution that is evaporated from the solution pump delivery trunk passes through each bar arm and magnetic valve, low head input from each shell and tube evaporator, import from the shell side upper end of each shell and tube evaporator respectively by each bar arm from the heating steam of heating steam house steward output, the indirect steam outlet of each shell and tube evaporator upper cover is connected to the indirect steam outlet header, also be respectively equipped with concentrated solution rework solution pump intake on each shell and tube evaporator upper cover, the shell side lower end of each shell and tube evaporator is respectively equipped with condensation-water drain, be built-in with inert solid particle at every evaporation tube, evaporation tube two-port up and down seals with silk screen.
Described evaporation tube is straight tube evaporation tube or screw-like evaporation tube.
Described inert solid particle for not with the solids that is evaporated the solution chemically reactive.
The beneficial effect that the present invention has is:
In the vertical shell and tube evaporator of placing, evaporation tube is built-in with inert solid particle, inert solid particle density is greater than being evaporated solution density, be evaporated solution and pass through this evaporation tube in the mode in gap, be evaporated solution with greater than the sinking speed of inert solid particle during by evaporation tube, inert solid particle is pushed to the evaporation tube upper end to become bulk by solution, the effect of dirt on the cleaning evaporation tube face or crystal will be played by inert solid particle group, when solid particle is pulled to the evaporation tube upper end, stop to be evaporated solution to the evaporation tube conveying, this moment, inert solid particle became bulk to fall again to be back to the evaporation tube bottom, inert solid particle group plays the effect of dirt on the cleaning evaporation tube face or crystal again, so cycling can keep the evaporating surface cleaning.The evaporation tube face can not sticked by dirt or crystal, because inert solid particle constantly cleans wall, has upset heat transfer boundary layer simultaneously, and heat-transfer effect is improved.
Description of drawings
Fig. 1 is a structural principle schematic diagram of the present invention.
Fig. 2 is a single straight heat exchange tube structure chart.
Fig. 3 is single screw-like heat exchange tube structure figure.
Among the figure: 1, solution pump, 2, magnetic valve, 3, magnetic valve, 4, condensation-water drain, 5, evaporation tube, 6, evaporimeter, 7, evaporimeter, 8, the heating steam import, 9, concentrated solution rework solution pump intake, 10, concentrated solution rework solution pump intake, 11, the indirect steam outlet header, 12, the upper end silk screen, 13, lower end silk screen, 14, straight tube evaporation tube, 15, inert solid particle, 16, the screw-like evaporation tube.
The specific embodiment
As shown in Figure 1 and Figure 2, the present invention is connected in parallel two vertical shell and tube evaporators of placing 6,7, promptly the solution from solution pump 1 delivery trunk passes through each bar arm and magnetic valve 2,3, low head input from each shell and tube evaporator, import from the shell side upper end of each shell and tube evaporator 6,7 respectively by each bar arm from the heating steam of heating steam house steward 8 outputs, the indirect steam outlet of each shell and tube evaporator 6,7 upper cover is connected to indirect steam outlet header 11; Also be respectively equipped with concentrated solution rework solution pump intake 9,10 on each shell and tube evaporator 6,7 upper cover, the shell side lower end of each shell and tube evaporator 6,7 is respectively equipped with condensation-water drain 4, be built-in with inert solid particle 15 at every evaporation tube 5, evaporation tube about in the of 5 two-port use terminal filament net 12 and lower end silk screen 13 seals.
Described evaporation tube 5 is straight tube heat exchanger tube 14 or screw-like heat exchanger tube 16.
Described inert solid particle 13 for not with the solids that is evaporated the solution chemically reactive (as the evaporation dimethyl formamide solution time, inert solid particle can be quartz sand, steel bomb pearl etc.).
Operation principle of the present invention is:
As among Fig. 1 being two evaporimeters 6 in parallel, 7 carry out work, solution pump 1 will be evaporated in the evaporation tube 5 that solution is delivered to two evaporimeters, heating steam is by heating being evaporated solution between pipe, during work, by relay magnetic valve 2 is opened, be evaporated solution this moment by in the evaporation tube 5 of evaporimeter 6, and with on inert solid particle 15 is pushed in the evaporation tube 5 of evaporimeter 6, after inert solid particle 15 arrives the upper end, close magnetic valve 2, open magnetic valve 3 simultaneously, be evaporated solution this moment by in the evaporation tube 5 of evaporimeter 7, and with on inert solid particle 15 is pushed in the evaporation tube 5 of evaporimeter 7, meanwhile, the inert solid particle that is in the evaporation tube 5 interior upper ends of evaporimeter 6 falls and turns back to the lower end, carries out periodic duty successively.
As shown in Figure 2, evaporation tube 5 is a straight tube evaporation tube 14; As shown in Figure 3, evaporation tube 5 is a screw-like evaporation tube 16.Evaporation tube is built-in with some inert solid particles 15, and inert solid particle 15 density are greater than being evaporated solution density, and evaporation tube two-port is up and down used terminal filament net 12 respectively and lower end silk screen 13 seals, and prevents that inert solid particle 15 from leaving evaporation tube.Be evaporated solution and pass through this evaporation tube in the mode in gap, be evaporated solution with greater than the sinking speed of inert solid particle during by evaporation tube, inert solid particle 15 with become bulk by solution with straight line or push the evaporation tube upper end in a spiral manner to, in this process, the effect of dirt on the cleaning evaporation tube face or crystal will be played by inert solid particle group, when inert solid particle 15 is pulled to the evaporation tube upper end, stop to the evaporation tube delivered solution, this moment, inert solid particle 15 became bulk with straight line or fall in a spiral manner and be back to the evaporation tube bottom again downwards, in this process, inert solid particle group plays the effect of dirt on the cleaning evaporation tube face or crystal again, so cycling, can keep the evaporating surface cleaning, the evaporation tube face can not sticked by dirt or crystal, because inert solid particle 15 constantly cleans wall, upset heat transfer boundary layer simultaneously, heat-transfer effect is improved.
The above-mentioned specific embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (1)
1, a kind of method of evaporimeter anti-deposition anti-crystallization, it is characterized in that: in the vertical shell and tube evaporator of placing, evaporation tube is built-in with inert solid particle, inert solid particle density is greater than being evaporated solution density, be evaporated solution and pass through this evaporation tube in mode intermittently, be evaporated solution with greater than the speed of inert solid particle sinking speed during by evaporation tube, inert solid particle is pushed to the evaporation tube upper end to become bulk by solution, in this process, the effect of dirt on the cleaning evaporation tube face or crystal will be played by inert solid particle group, when solid particle is pulled to the evaporation tube upper end, stop to be evaporated solution to the evaporation tube conveying, this moment, inert solid particle became bulk to fall again to be back to the evaporation tube bottom, in this process, inert solid particle group plays the effect of dirt on the cleaning evaporation tube face or crystal again, and so cycling can keep the evaporating surface cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100698530A CN100475300C (en) | 2007-07-05 | 2007-07-05 | Anti-deposition anti-crystallization method of evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100698530A CN100475300C (en) | 2007-07-05 | 2007-07-05 | Anti-deposition anti-crystallization method of evaporator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101108280A CN101108280A (en) | 2008-01-23 |
| CN100475300C true CN100475300C (en) | 2009-04-08 |
Family
ID=39040662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100698530A Expired - Fee Related CN100475300C (en) | 2007-07-05 | 2007-07-05 | Anti-deposition anti-crystallization method of evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100475300C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797485B (en) * | 2010-04-08 | 2013-04-10 | 葫芦岛辉宏有色金属有限公司 | Method for conveying easily-crystallized liquid |
| CN102949856B (en) * | 2011-08-26 | 2015-05-06 | 俞天翔 | Natural-circulation self-cleaning evaporation device |
| US10961126B2 (en) * | 2017-08-03 | 2021-03-30 | Veolia Water Technologies, Inc. | Process for reducing fouling in evaporators in lithium hydroxide recovery |
| CN107485878A (en) * | 2017-10-17 | 2017-12-19 | 济南大学 | A kind of optimal control method for improving vacuum salt production evaporation efficiency |
| CN114940521A (en) * | 2022-06-22 | 2022-08-26 | 江苏坤奕环境技术股份有限公司 | Modularized horizontal pipe type evaporator unit, cleaning device, evaporator and cleaning application method |
-
2007
- 2007-07-05 CN CNB2007100698530A patent/CN100475300C/en not_active Expired - Fee Related
Non-Patent Citations (6)
| Title |
|---|
| 惰性粒子流化床蒸发器及其传热性能的研究. 牛立宏，刘振义，李丁，任斌.医药工程设计，第23卷第6期. 2002 |
| 惰性粒子流化床蒸发器及其传热性能的研究. 牛立宏，刘振义，李丁，任斌.医药工程设计，第23卷第6期. 2002 * |
| 换热设备多相流防除垢技术的研究进展. 张少峰，李修伦，刘明言.化工设备与防腐蚀，第5卷第3期. 2000 |
| 换热设备多相流防除垢技术的研究进展. 张少峰，李修伦，刘明言.化工设备与防腐蚀，第5卷第3期. 2000 * |
| 气-液-固三相循环流化床蒸发器浓缩南瓜汁. 刘振义，高丽兰，李丁，宋继田.食品与发酵工业，第30卷第3期. 2004 |
| 气-液-固三相循环流化床蒸发器浓缩南瓜汁. 刘振义，高丽兰，李丁，宋继田.食品与发酵工业，第30卷第3期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101108280A (en) | 2008-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100475300C (en) | Anti-deposition anti-crystallization method of evaporator | |
| CN101109611A (en) | Anti-deposition and anti-crystallization process and device for heat exchanger | |
| WO2015131444A1 (en) | Multi-point centralized ball feeding system for condenser cleaned by rubber balls | |
| CN102395416A (en) | Apparatus for purifying water | |
| CN201964832U (en) | Evaporation-type air cooler | |
| CN208649025U (en) | A kind of Miniature seawater desalination device | |
| CN106103358A (en) | Incrustation scale catcher and water heater | |
| CN201861440U (en) | Scale-preventing water dispenser | |
| CN103822405A (en) | Wall type pollution cleaning, contaminant release and heat exchange integrated native sewage heat pump energy increasing device | |
| CN202028222U (en) | Forced circulation double-effect evaporator | |
| CN206549834U (en) | A kind of electric cleaner | |
| CN2936373Y (en) | Evaporator for preventing acicular separating out on heating pipe wall | |
| CN201978516U (en) | Heating chamber for bittern concentration and evaporation system | |
| CN201553782U (en) | Acid pickling system of low-temperature multipurpose sea water desalinization equipment | |
| CN101221025A (en) | Automatic cleaning system for cleaning ball condenser | |
| CN2890777Y (en) | Lithium bromide absorption type refrigerator with filter | |
| CN203319719U (en) | Evaporative crystallization device of manganese sulfate | |
| CN102519276A (en) | Self-cleaning heat exchange device for sewage of heat pump system of sewage source | |
| CN200941033Y (en) | Water flow on-line descaler of surface evaporating air cooling device | |
| CN202304586U (en) | Cleaning system of surface air cooler of air conditioner in cigarette production environment | |
| CN207886733U (en) | A kind of concentrated water heat pump crystallizing and drying device | |
| CN207238264U (en) | One kind condensation reheat-type wet static dedusting system | |
| CN201427997Y (en) | Acid washing device of low temperature multi-effect seawater desalination device | |
| CN202204368U (en) | Automatic cleaning system for condenser of central air conditioner | |
| CN109442455A (en) | A kind of boiler smoke processing equipment and boiler smoke processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 |