CN1401582A - Composite rough rib face high-efficiency heat pipe sea water desalination device and heat transfer enhancing method thereof - Google Patents
Composite rough rib face high-efficiency heat pipe sea water desalination device and heat transfer enhancing method thereof Download PDFInfo
- Publication number
- CN1401582A CN1401582A CN02134790A CN02134790A CN1401582A CN 1401582 A CN1401582 A CN 1401582A CN 02134790 A CN02134790 A CN 02134790A CN 02134790 A CN02134790 A CN 02134790A CN 1401582 A CN1401582 A CN 1401582A
- Authority
- CN
- China
- Prior art keywords
- heat transfer
- fin
- exhaust gases
- gases passes
- sea 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.)
- Pending
Links
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
An efficient seawater desalinating apparatus is composed of flue, heat exchanging tubes and condensing tubes. A method for enhancing the heat transfer is characterized by that part of heat exchanging tube is in the flue, the rest is outside the flue, and they have fins. Its advnatages are high heat transfer efficiency, compact structure and low cost.
Description
Technical field
The present invention relates to the sea water desaltination heat transfer technology, particularly a kind of composite rough rib face high-efficiency heat pipe sea water desalination device and heat transfer enhancing method thereof.
Background technology
The existing surface-type fresh-water generator of engine fume afterheat that utilize for thermal source, usually with the heat transfer interface of smooth pipe as seawater and flue gas, there are several main drawbacks in this technology: the heat transfer property of (one) smooth pipe is poor, heat transfer temperature difference is big, the weak effect that utilizes to low temperature exhaust heat is unfavorable for adopting multiple-effect evaporation; (2) smooth pipe produces in the junction easily and leaks, in case tube leak, seawater flows into flue, will produce serious influence to engine, and safety in utilization is relatively poor; (3) superheating temperature of smooth pipe evaporation of seawater Duan Shui big (12～15 ℃), incrustation easily, thus influence the heat exchange property of heat-transfer pipe.
Summary of the invention
Purpose of the present invention is exactly poor in order to overcome the safety in utilization and the heat transfer property that have the existence of surface-type fresh-water generator now, be unfavorable for adopting the shortcoming of multiple-effect evaporation, research and develop that a kind of to have safety in utilization good, good heat-transfer helps the composite rough rib face high-efficiency heat pipe sea water desalination device that adopts multiple-effect evaporation and can delay evaporation of seawater section incrustation.
Another object of the present invention is to provide a kind of heat transfer enhancing method of above-mentioned fresh-water generator.
Purpose of the present invention is achieved through the following technical solutions: this composite rough rib face high-efficiency heat pipe sea water desalination device comprises exhaust gases passes, heat transfer tube, prolong, a heat transfer tube part is positioned at exhaust gases passes, rest part is positioned at outside the exhaust gases passes, it is characterized in that heat transfer tube is positioned at exhaust gases passes and is positioned at the outer part of exhaust gases passes to be processed with fin respectively.
The described part that is positioned at exhaust gases passes is processed with circumferential discontinuous three-dimension fin.
Described circumferential discontinuous three-dimension fin is evenly distributed on the outside surface that heat transfer tube is positioned at the exhaust gases passes part, and it is shaped as triprismo or rectangular pyramid.
The described outer part of exhaust gases passes that is positioned at is processed with "T"-shaped fin.
Described "T"-shaped fin is processed with perforate and notch, is positioned at heat exchange pipe external surface; Notch edge at all "T"-shaped fins of heat exchange pipe external surface circumferentially is arranged around the fine tunnel that forms strip together.
Described prolong is processed with fin outward; Described fin is circumferential discontinuous three-dimension fin, and circumferential discontinuous three-dimension fin is evenly distributed on the outside surface that heat transfer tube is positioned at the exhaust gases passes part, and it is shaped as triprismo or rectangular pyramid.
This fresh-water generator also includes vapour-water sepn dividing plate, intercepting basin, and vapour-water sepn dividing plate is arranged under the prolong, and the downside of vapour-water sepn dividing plate is equipped with intercepting basin.
The heat transfer enhancing method of this composite rough rib face high-efficiency heat pipe sea water desalination device is: form turbulent flow at the heat exchange pipe external surface processing fin that is positioned at exhaust gases passes to promote the heat transfer tube outer boundary, improve the transmission of heat by convection film coefficient; The fin of heat exchange pipe external surface outside being arranged in exhaust gases passes processing simultaneously forms circumferential "T"-shaped fine tunnel finned surface structure makes seawater form the membranaceous evaporation of high speed in fine tunnel, significantly improves the transmitting frequency of steam bubble, increases the boiling heat transfer film coefficient.
Heat transfer enhancing method also is included in prolong and processes fin outward condensate film is collected in the wing root groove under surface tension ground effect, and effectively condensate film thickness on the attenuate wing improves condensation heat transfer film coefficient.
The present invention compared with prior art has following advantage:
(1) this composite rough rib face high-efficiency heat pipe sea water desalination device circumferential discontinuous three-dimension fin of being positioned at the convection zone heat transfer tube surface working of exhaust gases passes makes its transmission of heat by convection film coefficient higher 2～3 times than smooth heat transfer tube; The "T"-shaped finned tube that is positioned at the outer evaporator section heat transfer tube surface working of exhaust gases passes makes seawater ebullient superheating temperature littler 2～3 times than smooth heat transfer tube; Vapor condensation adopts circumferential discontinuous three-dimension fin prolong, and condensation heat transfer film coefficient is higher 3～5 times than smooth pipe heat-transfer pipe; Because three heat transfer processes have all adopted the good heat transfer reinforcing process, so the heat transfer efficiency height of this fresh-water generator, required heat transfer area are little, thereby structure is very compact, volume is less, it is particularly convenient aboard ship to use, the device fabrication cost descends than the fresh-water generator that uses smooth heat transfer tube, better economic benefit.
(2) owing to the good heat-transfer of each heat exchanging segment of this fresh-water generator, required heat transfer temperature difference is little, so help utilizing multiple-effect evaporation, improves the throughput of fresh-water generator.
(3) because the evaporation of seawater section of this fresh-water generator adopts "T"-shaped finned tube to make seawater ebullient superheating temperature less, and the frequency of steam bubble emission is very high again, so the speed that can effectively slow down tube-surface incrustation prolongs the cycle that fresh-water generator cleans dirt, reduces cost of equipment maintenance.
Description of drawings
Fig. 1 is the structural representation of composite rough rib face high-efficiency heat pipe sea water desalination device of the present invention.
Fig. 2 is that fresh-water generator shown in Figure 1 is positioned at the convection zone heat transfer tube of exhaust gases passes and the sectional view of prolong.
Fig. 3 is the structural representation of the circumferential discontinuous three-dimension fin of heat transfer tube shown in Figure 2 and prolong surface working.
Fig. 4 is the structural representation that is positioned at the "T"-shaped fin on the outer evaporator section heat transfer tube of exhaust gases passes of fresh-water generator shown in Figure 1.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further concrete description, but embodiments of the present invention are not limited thereto.
Embodiment
Fig. 1～Fig. 4 shows the specific embodiment of the present invention, as seen from Figure 1, this composite rough rib face high-efficiency heat pipe sea water desalination device comprises exhaust gases passes, vaporizer, exhaust gases passes is by smoke inlet 13, flue gas heat exchange section 12, exhanst gas outlet 14 connects and composes, exhaust gases passes and vaporizer link together, be provided with tube sheet 2 in both junctions, heat transfer tube is fixedly connected on the tube sheet 2, the part that heat transfer tube is positioned at exhaust gases passes is a convection zone 1, be positioned on the tube sheet 2, part in the evaporator shell 4 is an evaporator section 3, convection zone 1 is processed with the circumferential discontinuous three-dimension fin of rhizoma sparganic taper, shape as shown in Figures 2 and 3, three-dimension fin is evenly distributed on convection zone 1 outside surface; Evaporator section 3 is processed with "T"-shaped fin, shape as shown in Figure 4, "T"-shaped fin is processed with perforate and notch, heat transfer tube is socketed in the perforate, the notch of all "T"-shaped fins is arranged in the fine tunnel that forms strip together along circumferential hoop around heat transfer tube.Tops in the evaporator shell 4 are provided with prolong 8, and the outside surface of prolong 8 also evenly is processed with the circumferential discontinuous three-dimension fin of Fig. 2 and rhizoma sparganic taper shown in Figure 3; The below of prolong 8 is provided with intercepting basin 6, and intercepting basin 6 downsides are equipped with vapour-water sepn dividing plate 5; Also be provided with Mare Frigoris water inlet 7 and hot sea water outlet 9 at evaporator shell 4 upsides, be provided with filling pipe 10 with evaporator shell 4, also be provided with blow-off pipe 11 at evaporator shell 4 downsides in hot sea water outlet 9.
The action principle of this composite rough rib face high-efficiency heat pipe sea water desalination device is: the engine flue gas enters flue gas heat exchange section 12 by smoke inlet 13, and by exhanst gas outlet 14 discharges, the waste heat of flue gas is delivered to heat transfer tube evaporator section 3 in flue gas heat exchange section 12 through heat transfer tube convection zone 1, seawater in the vaporizer is heated to boiling, water vapor rises to prolong 8 through vapour-water sepn dividing plate 5, become the fresh water water droplet and be collected in the water of condensation intercepting basin 6 after condensation, water of condensation is the fresh water that meets national standard for drinking after flowing out.
The heat transfer enhancing method of this composite rough rib face high-efficiency heat pipe sea water desalination device is: at the circumferential discontinuous three-dimension fin of the heat transfer tube convection zone 1 outside surface processing rhizoma sparganic taper that is positioned at exhaust gases passes, promote heat transfer tube convection zone 1 outer boundary to form turbulent flow, improve the transmission of heat by convection film coefficient; Simultaneously heat transfer tube evaporator section 3 outside surfaces being arranged in exhaust gases passes outside are processed "T"-shaped fin and are formed circumferentially that "T"-shaped fine tunnel finned surface structure makes seawater in the membranaceous evaporation of fine tunnel formation high speed, significantly improve the transmitting frequency of steam bubble, increase the boiling heat transfer film coefficient; And the circumferential discontinuous three-dimension fin of processing triprismo shape is collected in the wing root groove condensate film under capillary effect outside prolong 8, and condensate film thickness on the attenuate wing improves condensation heat transfer film coefficient.
Embodiment of the present invention is simpler, can select for use stainless steel or copper to make material, adopt common metaller skill and machining process and equipment can add each parts of cost fresh-water generator, and be linked and packed by above-mentioned interconnected relationship and constitute fresh-water generator shown in Figure 1; The contriver recommends the evaporator shell 4 of design by high 700mm * wide 500mm * long 500mm, be connected with wide 500mm * high 500mm shape flue gas shell, with 500mm * 500mm tube sheet 2 heat transfer tube of 50 Φ 20mm * 3mm * 700mm is divided into evaporator section 3 and convection zone 1, the prolong 8 of 30 Φ 20mm * 3mm * 500mm of vaporizer inner top device, the water of condensation intercepting basin 6 of the wide 300mm of condensation tube bank below device * high 50mm * long 500mm.
The foregoing description is preferred embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification of being done under spirit of the present invention and the technology or substitutes; all should be the displacement of equivalence, be included within protection scope of the present invention.
Claims (9)
1, a kind of composite rough rib face high-efficiency heat pipe sea water desalination device, comprise exhaust gases passes, heat transfer tube, prolong, a heat transfer tube part is positioned at exhaust gases passes, rest part is positioned at outside the exhaust gases passes, it is characterized in that: heat transfer tube is positioned at exhaust gases passes and is positioned at the outer part of exhaust gases passes and is processed with fin respectively.
2, composite rough rib face high-efficiency heat pipe sea water desalination device according to claim 1 is characterized in that: the described part that is positioned at exhaust gases passes is processed with circumferential discontinuous three-dimension fin.
3, composite rough rib face high-efficiency heat pipe sea water desalination device according to claim 2 is characterized in that: described circumferential discontinuous three-dimension fin is evenly distributed on the outside surface that heat transfer tube is positioned at the exhaust gases passes part, and it is shaped as triprismo or rectangular pyramid.
4, composite rough rib face high-efficiency heat pipe sea water desalination device according to claim 1 is characterized in that: the described outer part of exhaust gases passes that is positioned at is processed with "T"-shaped fin.
5, composite rough rib face high-efficiency heat pipe sea water desalination device according to claim 4 is characterized in that: described "T"-shaped fin is processed with perforate and notch, is positioned at the interchanger outside surface.
6, composite rough rib face high-efficiency heat pipe sea water desalination device according to claim 1 is characterized in that: described prolong is processed with fin outward; Described fin is circumferential discontinuous three-dimension fin, and circumferential discontinuous three-dimension fin is evenly distributed on the outside surface that heat transfer tube is positioned at the exhaust gases passes part, and it is shaped as triprismo or rectangular pyramid.
7, composite rough rib face high-efficiency heat pipe sea water desalination device according to claim 1 is characterized in that: also include vapour-water sepn dividing plate, intercepting basin, vapour-water sepn dividing plate is arranged under the prolong, and the downside of vapour-water sepn dividing plate is equipped with intercepting basin.
8, a kind of heat transfer enhancing method of composite rough rib face high-efficiency heat pipe sea water desalination device is characterized in that: form turbulent flow at the heat exchange pipe external surface processing fin that is positioned at exhaust gases passes to promote the heat transfer tube outer boundary; The fin of heat exchange pipe external surface outside being arranged in exhaust gases passes processing simultaneously forms circumferentially, and "T"-shaped fine tunnel finned surface structure makes seawater form the membranaceous evaporation of high speed in fine tunnel.
9, the heat transfer enhancing method of composite rough rib face high-efficiency heat pipe sea water desalination device according to claim 8, it is characterized in that: outside prolong, process fin and make condensate film under the effect of surface tension ground, be collected in the wing root groove condensate film thickness on the attenuate wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02134790A CN1401582A (en) | 2002-09-24 | 2002-09-24 | Composite rough rib face high-efficiency heat pipe sea water desalination device and heat transfer enhancing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02134790A CN1401582A (en) | 2002-09-24 | 2002-09-24 | Composite rough rib face high-efficiency heat pipe sea water desalination device and heat transfer enhancing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1401582A true CN1401582A (en) | 2003-03-12 |
Family
ID=4747893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02134790A Pending CN1401582A (en) | 2002-09-24 | 2002-09-24 | Composite rough rib face high-efficiency heat pipe sea water desalination device and heat transfer enhancing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1401582A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183007A (en) * | 2011-04-11 | 2011-09-14 | 广西志远节能环保设备有限公司 | Waste heat recovering system of boiler |
| US8753487B2 (en) | 2007-10-04 | 2014-06-17 | Design Technology And Innovation Ltd | Water purification |
| CN106288896A (en) * | 2016-11-17 | 2017-01-04 | 河北工业大学 | Outer ripple heat exchange of heat pipe and sea water desalinating unit |
| CN113653884A (en) * | 2021-10-20 | 2021-11-16 | 南通诚友信息技术有限公司 | Hot water engineering pipeline anticorrosion insulation construction |
-
2002
- 2002-09-24 CN CN02134790A patent/CN1401582A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8753487B2 (en) | 2007-10-04 | 2014-06-17 | Design Technology And Innovation Ltd | Water purification |
| CN102183007A (en) * | 2011-04-11 | 2011-09-14 | 广西志远节能环保设备有限公司 | Waste heat recovering system of boiler |
| CN106288896A (en) * | 2016-11-17 | 2017-01-04 | 河北工业大学 | Outer ripple heat exchange of heat pipe and sea water desalinating unit |
| CN113653884A (en) * | 2021-10-20 | 2021-11-16 | 南通诚友信息技术有限公司 | Hot water engineering pipeline anticorrosion insulation construction |
| CN113653884B (en) * | 2021-10-20 | 2021-12-21 | 南通诚友信息技术有限公司 | Hot water engineering pipeline anticorrosion insulation construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4318781A (en) | Desalinazation apparatus | |
| CN110655133B (en) | Seawater concentration intelligent control method of circulating spray heat exchange system | |
| CN111099678B (en) | Fresh water collection method for seawater desalination | |
| CN110038313B (en) | Design method of evaporator inlet pipe and seawater desalination system thereof | |
| CN111099681B (en) | Heat collecting system | |
| CN110203988B (en) | Vacuum system and seawater desalination system | |
| CN214470282U (en) | Integral heat pipe exchanger for recovering flue gas waste heat of mail steamer | |
| JPH04244589A (en) | Condenser and power plant using it, heat exchanger and atomic power plant using it, absorber and absorption type refrigerator using it, condenser and heat transfer tube | |
| CN1401582A (en) | Composite rough rib face high-efficiency heat pipe sea water desalination device and heat transfer enhancing method thereof | |
| CN201093905Y (en) | Inorganic heat tube spraying type evaporator | |
| CN101126565A (en) | Condensed type combustion gas water heater condensator | |
| CN208561751U (en) | A kind of evaporation-type seawater desalination system using engine of boat and ship waste heat | |
| CN210473103U (en) | Anti-scaling flue gas condenser for chimney de-whitening | |
| RU2674816C1 (en) | Horizontal vapour-liquid heat exchanger | |
| CN208418689U (en) | A kind of finned tube economizer | |
| CN201793400U (en) | Water treatment device | |
| JPS60110388A (en) | Seawater desalting apparatus | |
| CN221923426U (en) | Boiler fixed-exhaust steam recovery system | |
| CN216717094U (en) | Double-circulation separated heat pipe waste heat boiler | |
| CN218937092U (en) | Bellows falling film condensation cooler | |
| CN110510687B (en) | Condenser for seawater desalination | |
| CN215063911U (en) | Heat exchange device for waste gas treatment in feed production | |
| RU68650U1 (en) | HEAT RECOVERY | |
| RU2045697C1 (en) | Condensation waste heat recovery device | |
| RU47084U1 (en) | HEAT EXCHANGER |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |