CN106943762A - A kind of film-distributing device suitable for ocean temperature difference power generating system falling film evaporator - Google Patents
A kind of film-distributing device suitable for ocean temperature difference power generating system falling film evaporator Download PDFInfo
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- CN106943762A CN106943762A CN201710333042.0A CN201710333042A CN106943762A CN 106943762 A CN106943762 A CN 106943762A CN 201710333042 A CN201710333042 A CN 201710333042A CN 106943762 A CN106943762 A CN 106943762A
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- Prior art keywords
- falling film
- film evaporator
- temperature difference
- nozzle
- power generating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a kind of film-distributing device suitable for ocean temperature difference power generating system falling film evaporator, it is characterised in that：The device includes shower, nozzle and heating tube bundle；Some showers are arranged at intervals with along falling film evaporator barrel lenght direction, each shower is around falling film evaporator barrel circumferentially around a circle；Close to falling film evaporator barrel, the nozzle is both provided with the inside of each shower, the nozzle is extended in falling film evaporator cylinder；Some heating tube bundles are provided with falling film evaporator cylinder.Structure of the present invention is easy for installation, helps to realize skid.
Description
Technical field
The present invention relates to a kind of film-distributing device, ocean temperature difference power generating system falling film evaporator is applied to especially with regard to one kind
Film-distributing device.
Background technology
Ocean thermal energy refers between surface seawater and deep sea water (the 800m depth of waters) existing to be more than 20 DEG C constant
The temperature difference.Under the driving of hot and cold seawater, some low boiling working fluids can be heated and vaporization is allowed to generated electricity with driving steam turbine, it is and right
Working substance steam carries out cooling liquid.Ocean thermal energy is that reserves are maximum in ocean energy, most stable of clean reproducible energy.China
South Sea thermal gradient energy reserves are calculated, annual electricity generating capacity is up to more than 57,000,000,000 degree up to 3.67 hundred million kilowatts by 2% utilization rate.
Ocean thermal energy resources development and utilization is an important option for ensureing islands and reefs electric energy.Due to away from continent, islands and reefs
Power supply is aided with solar energy and wind energy based on diesel generation.Influenceed by typhoon and heavy showers, goods and materials shipping time length, hair
Electric cost is too high.Power supply is not enough, electric cost height have impact on economic development and quality of residents'life.China's South Sea thermal gradient energy
Aboundresources, exploitation thermal gradient energy of such as gathering materials on the spot not only contributes to solve islands and reefs powerup issue, can also the production of boosting ocean thermal energy
Industryization develops.
Ocean thermal energy electricity generation system is mainly made up of evaporator, condenser, turbine, generator, working medium pump and sea water pump,
Its general principle is some low boiling working fluids of warm heating of seawater using ocean surface, and is allowed to vaporization and is sent out with driving steam turbine
Electricity.Working substance steam is pumped into evaporator through working medium, completes one cycle by being condensed with the cold seawater to make heat exchange of deep layer.Due to sea
The foreign temperature difference is smaller, and energy taste is relatively low so that the ocean thermal energy electricity generation system thermal efficiency is low, and evaporator size is big.Meanwhile, for solution
Certainly islands and reefs powerup issue, ocean temperature difference power generating system need to be built at sea using support platform as carrier, and this requires that equipment is tight
Gather, floor space it is small.Therefore, the research and development of high-efficiency evaporator are the lifting system thermal efficiency, reduce occupation area of equipment, reduce engineering
The key of cost of investment.At present, flooded evaporator is used ocean temperature difference power generating system, due between its tube side and shell-side fluid more
Heat exchange is insufficient, reduces the coefficient of heat transfer, and shell fluid pressure drop is big, easily causes evaporator overall performance low.And dripping type
Falling film evaporator forms membranaceous evaporation on heat exchanger tube, it is possible to increase the coefficient of heat transfer, and shell side pressure drop is small, and shell-side working medium flow is small,
Overall performance is high.
Falling film evaporator liquid distributor is to influence the key of overall efficiency.Existing trickle falling film evaporator liquid distributor is main
There is the board-like and shower type of distribution.The existing board-like trickle falling film evaporator of distribution, when distribution plate number is smaller, falling film evaporator is only
Falling film evaporation can be partly restrained, remaining tube bank is full liquid evaporation so that heat exchange efficiency is low；When distribution plate number is larger, it can be achieved
Full tube bank falling film evaporation, but such a structure drop pouring speed is small, reduces heat exchange efficiency.Existing shower type trickle falling film evaporator
Pass through multi-faceted setting shower and nozzle around heating tube bundle so that evaporator heating pipe surface cloth film is uniform, and spray
Mouth atomized drop speed is larger, adds drop and drenches speed, improves heat exchange efficiency, but because shower umber of feed inlet is more, installs not
It is convenient, it is unfavorable for skid.
In existing literature has the vertical falling-film evaporator of new liquid distributing device, liquid distributor is entered using refrigerant in parallel
Liquid bourdon's tube and novel cloth liquid disk, refrigerant can be evenly distributed in tube bank surface, but due to drop drench flow velocity it is small, heat exchange efficiency compared with
It is small.In the film-distributing device of existing literature horizontal tube sprinkling falling-film evaporator, spray is provided with using multi-faceted around heating tube bundle
Shower pipe and nozzle so that the heating pipe surface cloth film of evaporator bottom is uniform, improves evaporator effectiveness, but because shower enters
Mouth number is more, installs inconvenient, and the structure is designed for horizontal tube evaporator, and is limited by floor space, full sea formula
Ocean temperature difference power generating system carries out modularized design using vertical-type evaporator, and the structure is not suitable for vertical pipe type falling film evaporator
Cloth liquid process.
The content of the invention
Regarding to the issue above, it is an object of the invention to provide a kind of suitable for ocean temperature difference power generating system falling film evaporator
Film-distributing device, the device can increase drop and drench speed, improve its uniform spraying and evaporator heat exchange efficiency, and cause evaporator peace
Dress is convenient, contributes to skidization to design.
To achieve the above object, the present invention takes following technical scheme：One kind is applied to ocean temperature difference power generating system falling liquid film
The film-distributing device of evaporator, it is characterised in that：The device includes shower, nozzle and heating tube bundle；Along falling film evaporator cylinder
Length direction is arranged at intervals with some showers, and each shower is around falling film evaporator barrel circumferentially around one
Circle；Close to falling film evaporator barrel, the nozzle is both provided with the inside of each shower, the nozzle extends to falling liquid film steaming
Send out in device cylinder；Some heating tube bundles are provided with falling film evaporator cylinder.
Preferably, all showers are in parallel by pipeline, and after the inlet parallel of all showers with working medium
Inlet tube is connected.
Preferably, four nozzles are arranged at intervals with the inside of each shower, four nozzles are in level
Arrangement.
Preferably, the angle between the two neighboring nozzle is 90 °.
Preferably, the nozzle uses pressure atomized fog jet.
The present invention is due to taking above technical scheme, and it has advantages below：1st, the present invention is in vertical pipe type spraying evaporator
Pressure atomized fog jet is arranged around heat-exchanging tube bundle so that atomized drop is with larger speed impacts heat-exchanging tube bundle, and increase heat exchange is strong
Degree, and heat-exchanging tube bundle surface cloth film is uniform, can improve evaporator heat exchange efficiency.2nd, the present invention uses the equidistant cloth of circular spray tube
Put, may be such that evaporator realizes full tube bank falling film evaporation.3rd, shower of the invention shares an import, easy for installation, helps
In equipment skid.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the spray pipe structure schematic diagram of the present invention；
Fig. 3 is the nozzle arrangements schematic diagram of the present invention.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
As shown in FIG. 1 to 3, the present invention provides a kind of cloth film suitable for ocean temperature difference power generating system falling film evaporator and filled
Put, it includes shower 1, nozzle 2 and heating tube bundle 3.Some sprays are arranged at intervals with along falling film evaporator barrel lenght direction
Pipe 1, each shower 1 is around falling film evaporator barrel circumferentially around a circle；Close to falling film evaporator barrel, each shower
1 inner side is both provided with nozzle 2, and nozzle 2 is extended in falling film evaporator cylinder.It is provided with falling film evaporator cylinder some
Heating tube bundle 3, full tube bank falling film evaporation is realized by shower 1 and nozzle 2.
In above-described embodiment, all showers 1 are in parallel by pipeline, and after the inlet parallel of all showers 1 with working medium
Inlet tube is connected, easy for installation, helps to realize skid.
In the various embodiments described above, each inner side of shower 1 is arranged at intervals with four nozzles 2, and four nozzles 2 are in horizontal cloth
Put, and the angle between two neighboring nozzle 2 is 90 °, it is possible to achieve drop pouring is uniformly distributed, effective improving heat exchanging efficiency.
In the various embodiments described above, nozzle 2 uses pressure atomized fog jet, and pressure atomized fog jet atomizing particle size is smaller, and drop drenches speed
Degree is big, can increase the heat transfer in atomization working medium shock heating tube surface process, improve evaporator heat exchange efficiency.
In summary, when in use, liquid refrigerant enters shower 1 to the present invention by working medium inlet tube, is evenly distributed to
In shower 1 in parallel.Liquid refrigerant carries out atomization through the flow nozzle 2 of shower 1 and entered in falling film evaporator cylinder, around heating
Tube bank 3 carries out cloth film from different perspectives, to ensure to be evenly distributed to the surface of heating tube bundle 3.
The various embodiments described above are merely to illustrate the present invention, and structure, size, set location and the shape of each part are all can be with
It is varied from, on the basis of technical solution of the present invention, all improvement carried out according to the principle of the invention to individual part and waits
With conversion, it should not exclude outside protection scope of the present invention.
Claims (5)
1. a kind of film-distributing device suitable for ocean temperature difference power generating system falling film evaporator, it is characterised in that：The device includes spray
Shower pipe, nozzle and heating tube bundle；Some showers are arranged at intervals with along falling film evaporator barrel lenght direction, it is each described
Shower is all around falling film evaporator barrel circumferentially around a circle；Close to falling film evaporator barrel, on the inside of each shower
The nozzle is both provided with, the nozzle is extended in falling film evaporator cylinder；If being provided with falling film evaporator cylinder
Do the heating tube bundle.
2. a kind of film-distributing device suitable for ocean temperature difference power generating system falling film evaporator as claimed in claim 1, its feature
It is：All showers are in parallel by pipeline, and are connected after the inlet parallel of all showers with working medium inlet tube.
3. a kind of film-distributing device suitable for ocean temperature difference power generating system falling film evaporator as claimed in claim 1, its feature
It is：Four nozzles are arranged at intervals with the inside of each shower, four nozzles are in horizontally disposed.
4. a kind of film-distributing device suitable for ocean temperature difference power generating system falling film evaporator as claimed in claim 1, its feature
It is：Angle between the two neighboring nozzle is 90 °.
5. a kind of cloth film suitable for ocean temperature difference power generating system falling film evaporator as described in any one of Claims 1-4 is filled
Put, it is characterised in that：The nozzle uses pressure atomized fog jet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333042.0A CN106943762A (en) | 2017-05-12 | 2017-05-12 | A kind of film-distributing device suitable for ocean temperature difference power generating system falling film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333042.0A CN106943762A (en) | 2017-05-12 | 2017-05-12 | A kind of film-distributing device suitable for ocean temperature difference power generating system falling film evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106943762A true CN106943762A (en) | 2017-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710333042.0A Pending CN106943762A (en) | 2017-05-12 | 2017-05-12 | A kind of film-distributing device suitable for ocean temperature difference power generating system falling film evaporator |
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| Country | Link |
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| CN (1) | CN106943762A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101991965A (en) * | 2010-11-22 | 2011-03-30 | 苏州市中衡压力容器制造有限公司 | Film distributing device for horizontal tube type spraying falling-film evaporator |
| CN102531081A (en) * | 2010-12-15 | 2012-07-04 | 张广林 | Method for treating wastewater from vanadium plant by using waste gas from roasting furnace |
-
2017
- 2017-05-12 CN CN201710333042.0A patent/CN106943762A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101991965A (en) * | 2010-11-22 | 2011-03-30 | 苏州市中衡压力容器制造有限公司 | Film distributing device for horizontal tube type spraying falling-film evaporator |
| CN102531081A (en) * | 2010-12-15 | 2012-07-04 | 张广林 | Method for treating wastewater from vanadium plant by using waste gas from roasting furnace |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: CNOOC research institute limited liability company Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Applicant before: China National Offshore Oil Corporation Applicant before: CNOOC Research Institute |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170714 |