CN101109611A - Anti-deposition and anti-crystallization process and device for heat exchanger - Google Patents
Anti-deposition and anti-crystallization process and device for heat exchanger Download PDFInfo
- Publication number
- CN101109611A CN101109611A CNA2007100698545A CN200710069854A CN101109611A CN 101109611 A CN101109611 A CN 101109611A CN A2007100698545 A CNA2007100698545 A CN A2007100698545A CN 200710069854 A CN200710069854 A CN 200710069854A CN 101109611 A CN101109611 A CN 101109611A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- inert solid
- exchanger tube
- solid particle
- heat
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000002425 crystallisation Methods 0.000 title claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 63
- 239000007787 solid Substances 0.000 claims abstract description 57
- 239000002245 particle Substances 0.000 claims abstract description 54
- 239000013078 crystal Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims description 12
- 230000001351 cycling effect Effects 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 abstract description 5
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 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
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a method for preventing scaling and crystallization in a heat exchanger and an arrangement for the method. In a tube still heat exchanger that is arranged vertically, some inert solid particles are placed in the heat-exchanging tube, the density of the inert solid particles are higher than the density of the fluid. The hi-temperature fluid passes the heat-exchanging pipe in intermittent way. When the hi-temperature fluid passes the heat-exchanging pipe at a speed higher than the settling speed of the inert solid particles, the inert solid particles are pushed by the fluid in conglomerate form to the upper end of the heat-exchanging pipe, the conglomerates of inert solid particles will clean away the dirt or crystal on the surface of the heat-exchanging pipe; when the solid particles are pushed to the upper end of the heat-exchanging pipe, the delivery of hi-temperature fluid to the heat-exchanging pipe will stop, now the inert solid particles fall down to the bottom end of the heat-exchanging pipe in conglomerate form, the conglomerates of inert solid particles will clean away the dirt or crystal on the surface of the heat-exchanging pipe. With such operation repeated, the surface of the heat-exchanging pipe can be kept clean, and will not be attached with dirt or crystal. As the inert solid particles continuously clean the wall surface, this disturbs the heat-transmission boundary layer, so the heat-transmission effect is improved.
Description
Technical field
The present invention relates to heat exchanger, especially relate to a kind of heat exchanger that has good antiscale property crystallization heat exchanger tube.
Background technology
Heat exchanger is used in a large number in the industry, when unclean fluid or the fluid of easily separating out crystallization are carried out heat exchange, easily produce dirt or crystal on the heat exchanger heat transfer face, heat exchange efficiency is reduced, even heat exchanger can not be worked, use heat exchanger 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 heat exchanger that has good antiscale property crystallization heat exchanger tube.
The technical scheme that the present invention solves its technical problem employing is:
1, a kind of method of heat exchanger anti-deposition anti-crystallization:
In the vertical tubular heat exchanger of placing, heat exchanger tube is built-in with inert solid particle, and inert solid particle density is greater than fluid density.High temperature fluid passes through this heat exchanger tube in the mode in gap, high temperature fluid is with greater than the sinking speed of inert solid particle during by heat exchanger tube, inert solid particle is pushed to the heat exchanger tube upper end to become bulk by fluid, in this process, the effect of dirt on the cleaning heat exchanger tube face or crystal will be played by inert solid particle group, when solid particle is pulled to the heat exchanger tube upper end, stop to carry high temperature fluid to heat exchanger tube, this moment, inert solid particle became bulk to fall again to be back to the heat exchanger tube bottom, in this process, inert solid particle group plays the effect of dirt on the cleaning heat exchanger tube face or crystal again, and so cycling can keep the heat-transfer surface cleaning.
2, a kind of device of heat exchanger anti-deposition anti-crystallization:
Two or more vertical tubular heat exchangers of placing are connected in parallel, promptly from the hot fluid of hot fluid pump delivery trunk by each bar arm respectively from the low head input of separately tubular heat exchanger, from the cold fluid of cold fluid pump delivery trunk by each bar arm respectively from the shell side lower end input of separately tubular heat exchanger, the hot fluid outlet of each tubular heat exchanger upper cover is connected to the hot fluid outlet header through separately magnetic valve respectively; The shell side upper end of each tubular heat exchanger is respectively the cold fluid outlet, is built-in with inert solid particle at every heat exchanger tube, and heat exchanger tube two-port up and down seals with silk screen.
Described heat exchanger tube is straight tube heat exchanger tube or screw-like heat exchanger tube.
Described inert solid particle be not with the solids of hot fluid chemically reactive.
The beneficial effect that the present invention has is:
High temperature fluid passes through this heat exchanger tube in the mode in gap, high temperature fluid is with greater than the sinking speed of inert solid particle during by heat exchanger tube, inert solid particle is pushed to the heat exchanger tube upper end to become bulk by fluid, in this process, the effect of dirt on the cleaning heat exchanger tube face or crystal will be played by inert solid particle group, when solid particle is pulled to the heat exchanger tube upper end, stop to carry high temperature fluid to heat exchanger tube, this moment, inert solid particle became bulk to fall again to be back to the heat exchanger tube bottom, in this process, inert solid particle group plays the effect of dirt on the cleaning heat exchanger tube face or crystal again, and so cycling can keep the heat-transfer surface cleaning, the heat exchanger tube face can not sticked by dirt or crystal, because inert solid particle constantly cleans wall, upset heat transfer boundary layer simultaneously, 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, hot fluid pump, 2, the cold fluid pump, 3, tubular heat exchanger, 4, tubular heat exchanger, 5, heat exchanger, 6, the cold fluid outlet, 7, cold fluid outlet, 8, magnetic valve, 9, magnetic valve, 10, hot fluid outlet header, 11, inert solid particle, 12, the upper end silk screen, 13, the lower end silk screen, 14, straight tube heat exchanger tube, 15, the screw-like heat exchanger tube.
The specific embodiment
As Fig. 1, shown in Figure 2, the present invention includes two vertical tubular heat exchangers of placing 3,4 are connected in parallel, promptly the hot fluid from hot fluid pump 1 delivery trunk passes through two arms respectively from tubular heat exchanger 3,4 low head input, pass through two arms respectively from tubular heat exchanger 3 from the cold fluid of cold fluid pump 2 delivery trunks, 4 shell side lower end input, the outlet of the hot fluid of two tubular heat exchanger upper covers is respectively through separately magnetic valve 8,9 are connected to hot fluid outlet header 10, each tubular heat exchanger 3,4 shell side upper end is respectively cold fluid outlet 6,7, be built-in with inert solid particle 11 at every heat exchanger tube 5, heat exchanger tube up and down two-port is used terminal filament net 12 and lower end silk screen 13 seals.
Described heat exchanger tube is straight tube heat exchanger tube or screw-like heat exchanger tube.
Described inert solid particle be not with the solids of hot fluid chemically reactive (as cooling dimethyl formamide hot fluid 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 heat exchangers in parallel 3,4 carry out work, hot fluid pump 1 is delivered to hot fluid in the heat exchanger tube 5 of two heat exchangers, the cold fluid of cold fluid pump 2 is by cooling off hot fluid between pipe, during work, by relay magnetic valve 8 is opened, this moment, hot fluid was by in the heat exchanger tube 5 of heat exchanger 3, and push the inert solid particles 11 in the heat exchanger tube 5 of heat exchanger 3 to upper end, after solid particle 11 arrives the upper end, close magnetic valve 8, open magnetic valve 9 simultaneously, this moment, hot fluid passed through in the heat exchanger tube 5 of heat exchanger 4, and pushed inert solid particles 11 in the heat exchanger tube 5 of heat exchanger 4 to upper end, meanwhile, the inert solid particle 11 that is in the heat exchanger tube 5 interior upper ends of heat exchanger 3 falls and turns back to the lower end, carries out periodic duty successively.
As shown in Figure 2, heat exchanger tube 5 is a straight tube heat exchanger tube 14; As shown in Figure 3, heat exchanger tube 5 is a screw-like heat exchanger tube 15.Heat exchanger tube is built-in with some inert solid particles 11, and inert solid particle 11 density are greater than fluid density, and heat exchanger 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 11 from leaving heat exchanger tube.High temperature fluid passes through this heat exchanger tube in the mode in gap, high temperature fluid is with greater than the sinking speed of inert solid particle during by heat exchanger tube, inert solid particle 11 is pushed heat exchanger tube upper end by fluid with straight line or with the hand of spiral to become bulk, in this process, the effect of dirt on the cleaning heat exchanger tube face or crystal will be played by inert solid particle group, when inert solid particle 11 is pulled to the heat exchanger tube upper end, stop to carry high temperature fluid to heat exchanger tube, this moment, inert solid particle 11 became bulk to fall with straight line or in the downward mode of the hand of spiral again to be back to the heat exchanger tube bottom, in this process, inert solid particle group plays the effect of dirt on the cleaning heat exchanger tube face or crystal again, so cycling, can keep the heat-transfer surface cleaning, the heat exchanger tube face can not sticked by dirt or crystal, because inert solid particle 11 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 (4)
1. the method for a heat exchanger anti-deposition anti-crystallization is characterized in that: in the vertical tubular heat exchanger of placing, heat exchanger tube is built-in with inert solid particle, and inert solid particle density is greater than fluid density.High temperature fluid passes through this heat exchanger tube in the mode in gap, high temperature fluid is with greater than the sinking speed of inert solid particle during by heat exchanger tube, inert solid particle is pushed to the heat exchanger tube upper end to become bulk by fluid, in this process, the effect of dirt on the cleaning heat exchanger tube face or crystal will be played by inert solid particle group, when solid particle is pulled to the heat exchanger tube upper end, stop to carry high temperature fluid to heat exchanger tube, this moment, inert solid particle became bulk to fall again to be back to the heat exchanger tube bottom, in this process, inert solid particle group plays the effect of dirt on the cleaning heat exchanger tube face or crystal again, and so cycling can keep the heat-transfer surface cleaning.
2. the device of a heat exchanger anti-deposition anti-crystallization, it is characterized in that: two or more vertical tubular heat exchangers of placing are connected in parallel, promptly from the hot fluid of hot fluid pump delivery trunk by each bar arm respectively from the low head input of separately tubular heat exchanger, from the cold fluid of cold fluid pump delivery trunk by each bar arm respectively from the shell side lower end input of separately tubular heat exchanger, the hot fluid outlet of each tubular heat exchanger upper cover is connected to the hot fluid outlet header through separately magnetic valve respectively; The shell side upper end of each tubular heat exchanger is respectively the cold fluid outlet, is built-in with inert solid particle at every heat exchanger tube, and heat exchanger tube two-port up and down seals with silk screen.
3. the device of a kind of heat exchanger anti-deposition anti-crystallization according to claim 2 is characterized in that: described heat exchanger tube is straight tube heat exchanger tube or screw-like heat exchanger tube.
4. the device of a kind of heat exchanger anti-deposition anti-crystallization according to claim 2 is characterized in that: described inert solid particle for not with the solids of hot fluid chemically reactive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100698545A CN101109611A (en) | 2007-07-05 | 2007-07-05 | Anti-deposition and anti-crystallization process and device for heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100698545A CN101109611A (en) | 2007-07-05 | 2007-07-05 | Anti-deposition and anti-crystallization process and device for heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101109611A true CN101109611A (en) | 2008-01-23 |
Family
ID=39041785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100698545A Pending CN101109611A (en) | 2007-07-05 | 2007-07-05 | Anti-deposition and anti-crystallization process and device for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101109611A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390512A (en) * | 2014-09-28 | 2015-03-04 | 青岛大学 | Reinforced descaling type heat exchange device |
| CN105833563A (en) * | 2016-05-12 | 2016-08-10 | 江阴市江中设备制造有限公司 | Non-scaling heating assembly and evaporative crystallization device with same |
| CN107421347A (en) * | 2017-08-18 | 2017-12-01 | 北京必可测科技股份有限公司 | Save antiscale condenser arrangement |
| DE102016120167A1 (en) * | 2016-09-14 | 2018-03-15 | L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Reformer tube with structured catalyst and improved heat balance |
| CN108106467A (en) * | 2018-01-25 | 2018-06-01 | 蓝旺节能科技（浙江）有限公司 | The heat exchanger of anti-crystallization |
| CN112537813A (en) * | 2020-12-03 | 2021-03-23 | 莱芜市安邦冶金设备有限公司 | Evaporator for low-temperature multi-effect seawater desalination system |
-
2007
- 2007-07-05 CN CNA2007100698545A patent/CN101109611A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390512A (en) * | 2014-09-28 | 2015-03-04 | 青岛大学 | Reinforced descaling type heat exchange device |
| CN105833563A (en) * | 2016-05-12 | 2016-08-10 | 江阴市江中设备制造有限公司 | Non-scaling heating assembly and evaporative crystallization device with same |
| DE102016120167A1 (en) * | 2016-09-14 | 2018-03-15 | L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Reformer tube with structured catalyst and improved heat balance |
| CN107421347A (en) * | 2017-08-18 | 2017-12-01 | 北京必可测科技股份有限公司 | Save antiscale condenser arrangement |
| CN108106467A (en) * | 2018-01-25 | 2018-06-01 | 蓝旺节能科技（浙江）有限公司 | The heat exchanger of anti-crystallization |
| CN112537813A (en) * | 2020-12-03 | 2021-03-23 | 莱芜市安邦冶金设备有限公司 | Evaporator for low-temperature multi-effect seawater desalination system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101109611A (en) | Anti-deposition and anti-crystallization process and device for heat exchanger | |
| CN100475300C (en) | Anti-deposition anti-crystallization method of evaporator | |
| CN101430169B (en) | High-efficiency easy-cleaning sullage heat exchanger | |
| CN201772776U (en) | High-efficiency heat exchanger provided with flue gas purification and filtration function | |
| CN101738137A (en) | Device and process for automatically cleaning heat exchanger and switching flow direction of heat exchanger | |
| CN102965682A (en) | Blast furnace water-cooling wall water scale rapid washing and heat transfer enhancement device | |
| CN103822405A (en) | Wall type pollution cleaning, contaminant release and heat exchange integrated native sewage heat pump energy increasing device | |
| CN210242548U (en) | Descaling heat exchanger | |
| CN202382644U (en) | Descaling heat exchanger | |
| CN101221025B (en) | Automatic cleaning system for cleaning ball condenser | |
| CN201237207Y (en) | Heat accumulation type steam electric boiler | |
| CN107560494B (en) | A kind of On Line Foul Removing Technology device | |
| CN203454917U (en) | Condenser cleaning system in turbine closed circulating water system | |
| CN2936373Y (en) | Evaporator for preventing acicular separating out on heating pipe wall | |
| CN202734619U (en) | Coiled tube finned type heat exchanger with tube inside capable of being cleaned | |
| CN104864770A (en) | Online cleaning system and method for circulating cooling water heat exchanger | |
| CN201978516U (en) | Heating chamber for bittern concentration and evaporation system | |
| CN104946828B (en) | Blast furnace slag flushing water waste heat recovery device and waste heat recovery system | |
| CN102519276A (en) | Self-cleaning heat exchange device for sewage of heat pump system of sewage source | |
| CN213811898U (en) | Spiral gradually-changed fin phase-change heat accumulator | |
| CN103438757A (en) | Condenser cleaning system and cleaning method in steam turbine closed type circulating water system | |
| CN206531414U (en) | A kind of plate type heat exchanger | |
| CN208847016U (en) | A kind of water cooler by-pass valve and back purge system | |
| CN101846466A (en) | Waste water residual heat recovering device | |
| CN202984207U (en) | Scale rapid cleaning and heat transfer reinforcing device of blast furnace water screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |