CN104261497A - Bubbling negative-pressure evaporation seawater desalination device and production method - Google Patents
Bubbling negative-pressure evaporation seawater desalination device and production method Download PDFInfo
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- CN104261497A CN104261497A CN201410353767.2A CN201410353767A CN104261497A CN 104261497 A CN104261497 A CN 104261497A CN 201410353767 A CN201410353767 A CN 201410353767A CN 104261497 A CN104261497 A CN 104261497A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- 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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a bubbling negative-pressure evaporation seawater desalination device and a production method. The bubbling negative-pressure evaporation seawater desalination device comprises a raw seawater storage device, a heat pump primary evaporator, an air compressor, a heat pump condenser and a concentrated solution post-treater, wherein a heat exchanger is arranged inside the raw seawater storage device, and a bubbler is arranged at the bottom of the raw seawater storage device; the heat pump primary evaporator is connected with a fresh water collector; a heat pump secondary evaporator and a rotary scraper device are arranged inside the concentrated solution post-treater; the raw seawater storage device, the heat pump primary evaporator, the air compressor and the heat pump condenser are connected in sequence through a steam pipeline, thereby forming a loop; the raw seawater storage device is connected with the concentrated solution post-treater through a connecting pipeline; after gas is heated by the heat pump condenser, bubbles are formed from the bottom of the raw seawater storage device through the bubbler; water vapor coming out of the surface of seawater by means of evaporation and water vapor carried out by the bubbles enter the heat pump primary evaporator together, and are condensed into fresh water, so that the fresh water is produced circularly; and meanwhile, high-concentration seawater produced after seawater desalination can enter the concentrated solution post-treater for cooling and standing to separate salt out. Through adoption of the bubbling negative-pressure evaporation seawater desalination device and the production method, the seawater desalination efficiency is increased, and coproduction of water and salt is realized.
Description
Technical field
The present invention relates generally to field of sea water desalting technology, refers in particular to a kind of bubbling negative pressure evaporation sea water desalinating plant and production method.
Background technology
Sea water desaltination is a kind of technology utilizing sea water desalinization to produce fresh water, desalination technology can increase fresh water total amount, and not by space-time and weather effect, water quality is good and price is gradually reasonable, admires significant with the stable water supply such as water and Industrial Boiler moisturizing for the coastal resident of guarantee.And in existing desalination technology, include bubbling evaporation-type seawater desalination technology, the basic thought of bubbling evaporation-type seawater desalination technology is exactly: utilize air to pass in hot sea water and form bubble, the heat absorbing seawater in bubble uphill process and the water vapour evaporated, collect water vapour, condensation is to obtain fresh water.But bubbling evaporating sea water desalting device of the prior art has following defect:
1. be normal temperature air by what wrap up in the bubble of seawater in existing bubbling evaporating sea water desalting device, thus the speed of evaporation of seawater is comparatively slow, and the efficiency of sea water desaltination is not high;
2. existing bubbling evaporating sea water desalting device generally only has the function desalinized seawater, and function is comparatively single, and for high density seawater remaining after sea water desaltination, normally when sewage is drained, causes the wasting of resources.
Summary of the invention
The object of the present invention is to provide a kind of bubbling negative pressure evaporation sea water desalinating plant, the evaporation of seawater speed of this device is high, and efficiency is accelerated, and can make full use of the high density seawater after sea water desaltination, more economizes on resources.
Another object of the present invention is to provide a kind of bubbling negative pressure evaporation sea water desaltination production method, the throughput rate of this production method is high, and can realize the coproduction of water salt.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of bubbling negative pressure evaporation sea water desalinating plant, comprise bottom to be provided with the raw material seawater holder of bubbler, fresh water collecting apparatus by means, to be provided with the steam-pipe of pneumatic plant, the top of described raw material seawater holder is connected with heat pump one-level vaporizer by steam-pipe, heat pump one-level vaporizer is connected with heat pump condenser by steam-pipe, heat pump condenser is connected with the bubbler in raw material seawater holder by steam-pipe, form the first loop, described heat pump one-level vaporizer is connected with fresh water collecting apparatus by means by conduit; Described raw material seawater holder is provided with the strong solution preprocessor of heat pump secondary evaporimeter in being connected by connecting tube, described heat pump secondary evaporimeter is connected with heat pump one-level vaporizer, described heat pump secondary evaporimeter is separately connected with heat pump compressor, heat pump compressor is connected with heat pump condenser, heat pump condenser is connected with heat pump one-level vaporizer by throttling set, forms second servo loop.
The working process of this bubbling negative pressure evaporation sea water desalinating plant is: in raw material seawater holder, add seawater, seawater in raw material seawater holder is heated, gas simultaneously in steam-pipe after heat pump condenser heating vomits in the form of bubbles bottom raw material seawater holder through bubbler under pneumatic plant effect, bubble absorbs water vapor gradually in uphill process in seawater, pneumatic plant constantly aspirates the air of raw material seawater ullage in raw material seawater holder to form larger negative pressure, the water vapour that the water vapour of seawater surface evaporation effusion and bubble are taken out of enters together in heat pump one-level vaporizer and is condensed into fresh water, fresh water collecting apparatus by means collects fresh water, the saturated vapor that part is not condensed completely vomits in the form of bubbles via bubbler after carrying out being heated into unsaturated hot steam in pneumatic plant press-in heat pump condenser more again, circulation like this, and the high density seawater after sea water desaltination enters in strong solution preprocessor, heat pump secondary evaporimeter absorbs the heat in high density seawater, and the cooling of high density seawater leaves standstill analyses salt.Be gas after heat pump condenser heating due to what wrap up in the bubble that bubbler bloats, the speed of evaporation of seawater can be made when thus bubble rises in seawater greatly to improve, and then improve the efficiency of sea water desaltination.In addition, this device also can extract crude salt from high density seawater while desalinizing seawater, and makes full use of resource.Moreover, heat pump one-level vaporizer, heat pump secondary evaporimeter, heat pump condenser, throttling set and heat pump compressor form second servo loop, an i.e. heat pump cycle loop, the working process in this heat pump cycle loop is: superheated liquid is through heat pump one-level vaporizer, the heat absorption of heat pump secondary evaporimeter flashes to gas, this gas becomes high temperature and high pressure gas through the compression of heat pump compressor, this high temperature and high pressure gas is liquefied as highly pressurised liquid through heat pump condenser heat release, this highly pressurised liquid becomes superheated liquid through throttling set decompression and enters heat pump one-level vaporizer, in heat pump secondary evaporimeter, complete whole circulation.Second servo loop can realize the heat transmission of steam-pipe and strong solution preprocessor, more saves the energy.
Further, rotor segment device is provided with in described strong solution preprocessor.This rotor segment device can be used for sweeping the salinity in strong solution preprocessor.Described strong solution preprocessor can in be provided with a sea salt travelling belt, described sea salt travelling belt is positioned at the below of aforementioned rotor segment device.This sea salt travelling belt can export the salinity that rotor segment device sweeps to appointment after-treatment device.
Described raw material seawater holder also can in be provided with interchanger, this interchanger is connected with waste heat waste heat collecting apparatus.Waste heat waste heat collecting apparatus can collect the multiple low grade energy, and as various waste heat, used heat or clean energy (as sunlight heat, underground heat etc.), energy utilization rate is high, more environmental protection.
Described conduit can be provided with a check valve.This check valve can prevent the water in fresh water collecting apparatus by means from flowing backwards.
Present invention also offers the production method utilizing the sea water desaltination of said apparatus bubbling negative pressure evaporation, comprise the following steps:
A. in raw material seawater holder, add seawater, heat pump one-level vaporizer, pneumatic plant, heat pump condenser and bubbler work simultaneously, and fresh water collecting apparatus by means collects fresh water;
B., when the concentration of seawater in raw material seawater holder reaches the saturation concentration of seawater, the seawater in raw material seawater holder flows in strong solution preprocessor through connecting tube;
C. heat pump secondary evaporimeter work, the salinity in strong solution preprocessor maritime interior waters emanates out from the bottom of strong solution preprocessor gradually.
Also can comprise step D after described step C: rotor segment device rotary work, so the salinity bottom strong solution preprocessor is scraped from.
Also can comprise step e after described step D: scrape from salinity fall on sea salt travelling belt, this salinity exports outside strong solution preprocessor by sea salt travelling belt.
The beneficial effect that the present invention brings has:
1. because bubbler is connected with a heat pump condenser by steam-pipe, the gas that bubbler bloats can first heat via heat pump condenser, what the bubble in incoming stock seawater wrapped up is high-temperature gas, thus can accelerate the speed of evaporation of seawater when bubble rises in raw material seawater, and then improve the efficiency of sea water desaltination;
2. be also provided with strong solution preprocessor, heat pump secondary evaporimeter and rotor segment device in this device, thus also while desalinizing seawater, crude salt can be extracted from high density seawater, make full use of resource, environmental protection and energy saving;
3. second servo loop can realize the heat transmission of steam-pipe and strong solution preprocessor, more saves the energy.
4. owing to adding waste heat waste heat collecting apparatus in this device, the low-grade heat sources such as Appropriate application waste heat, used heat, make the efficiency of energy utilization of device improve, and energy consumption reduces.
Below in conjunction with drawings and the specific embodiments, the present invention is further illustrated:
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of the embodiment of the present invention;
Fig. 2 is the structural representation of bubbler in the embodiment of the present invention;
Fig. 3 is the cross section structure schematic diagram of strong solution preprocessor in the embodiment of the present invention.
Description of reference numerals: raw material seawater holder 1, interchanger 2, bubbler 3, waste heat waste heat collecting apparatus 4, water inlet pipe 5, float(ing)valve 6, steam-pipe 7, heat pump one-level vaporizer 8, check valve 9, conduit 10, fresh water collecting apparatus by means 11, pneumatic plant 12, heat pump condenser 13, throttling set 14, heat pump compressor 15, heat pump secondary evaporimeter 16, strong solution treater 17, connecting tube 18, pipeline valve 19, crafters 301, sea salt travelling belt 1701, rotor segment device 1702.
Embodiment
As Figure 1-3, a kind of bubbling negative pressure evaporation sea water desalinating plant of the present invention comprises the raw material seawater holder 1 that inside is provided with interchanger 2, heat pump one-level vaporizer 8, pneumatic plant 12, heat pump condenser 13, fresh water collecting apparatus by means 11 and strong solution preprocessor 17, raw material seawater holder 1, heat pump one-level vaporizer 8, pneumatic plant 12, it is a circulation loop that heat pump condenser 13 is connected by steam-pipe 7 successively: the top of raw material seawater holder 1 is connected with heat pump one-level vaporizer 8 by steam-pipe 7, heat pump one-level vaporizer 8 is connected with pneumatic plant 12 by steam-pipe 7, pneumatic plant 12 is connected with heat pump condenser 13 by steam-pipe 7, heat pump condenser 13 is connected with bubbler 3 by steam-pipe 7, bubbler 3 is positioned at the bottom of raw material seawater holder 1, to form the first loop.Heat pump one-level vaporizer 8 is connected with fresh water collecting apparatus by means 11 by a conduit 10, the side of raw material seawater holder 1 is connected with strong solution preprocessor 17 by a connecting tube 18, heat pump secondary evaporimeter 16 and rotor segment device 1702 is provided with in strong solution preprocessor 17, when being mounted with seawater in strong solution treater 17, heat pump secondary evaporimeter 16 is positioned at the liquid level of strong solution preprocessor 17 with upper/lower positions, and rotor segment device 1702 is arranged near the bottom of strong solution preprocessor 17.
Wherein, heat pump one-level vaporizer 8, heat pump secondary evaporimeter 16, heat pump condenser 13 are in turn connected into second servo loop 16, on this loop, be provided with a throttling set 14 between heat pump one-level vaporizer 8 and heat pump condenser 13, between heat pump secondary evaporimeter 16 and heat pump condenser 13, be provided with heat pump compressor 15.I.e. heat pump one-level vaporizer 8, heat pump secondary evaporimeter 16, heat pump compressor 15, heat pump condenser 13 and throttling set 14 form second servo loop 16 successively, second servo loop 16 is a heat pump cycle loop, the working process of this second servo loop 16 is: superheated liquid is through heat pump one-level vaporizer 8, heat pump secondary evaporimeter 16 heat absorption flashes to gas, this gas becomes high temperature and high pressure gas through the compression of heat pump compressor 15, this high temperature and high pressure gas is liquefied as highly pressurised liquid through heat pump condenser 13 heat release, this highly pressurised liquid becomes superheated liquid through throttling set 14 decompression and gets back to heat pump one-level vaporizer 8, in heat pump secondary evaporimeter 16, complete whole circulation.This second servo loop 16 can realize the heat transmission between steam-pipe 7 and strong solution preprocessor 17, more saves the energy.
Bubbler 3 is a hot gas bubbling dish structure with a plurality of crafters 301, as shown in Figure 2.Also be provided with a sea salt travelling belt 1701 in strong solution preprocessor 17, this sea salt travelling belt 1701 is positioned at the below of rotor segment device 1702, as shown in Figure 3.
Interchanger 2 is connected with a waste heat waste heat collecting apparatus 4 of raw material seawater holder 1 outside.This waste heat waste heat collecting apparatus 4 can collect the multiple low grade energy, and as various waste heat, used heat or clean energy (as sunlight heat, underground heat etc.), energy utilization rate is high, more environmental protection.
Conduit 10 is provided with a check valve 9.This check valve 9 can prevent the fresh water in fresh water collecting apparatus by means 11 from flowing backwards.
The connecting tube 18 of strong solution preprocessor 17 is provided with pipeline valve 19, raw material seawater holder 1 is connected with a water inlet pipe 5, this water inlet pipe 5 is provided with float(ing)valve 6, raw material seawater can from the incoming stock seawater holder 1 of this water inlet pipe 5, and the float(ing)valve 6 on water inlet pipe 5 accurately can control the seawater liquid level in raw material seawater holder 1.
The working process of this bubbling negative pressure evaporation sea water desalinating plant is: in raw material seawater holder 1, add seawater by water inlet pipe 5, seawater in interchanger 2 pairs of raw material seawater holders 1 heats, simultaneously under the effect of pneumatic plant 12, gas in steam-pipe 7 vomits with thermal form via the bottom of bubbler 3 from raw material seawater holder 1 after being heated by heat pump condenser 13 again, thermal absorbs water vapor gradually in uphill process in seawater, pneumatic plant 12 constantly aspirates the air of raw material seawater ullage in raw material seawater holder 1 to form larger negative pressure, under negative pressure, by the seawater surface evaporation effusion water vapour heated, thermal also takes a large amount of water vapour out of, this two portions water vapour enters in heat pump one-level vaporizer 8 together, fresh water is condensed into through the heat absorption of heat pump one-level vaporizer 8, fresh water is gathered in heat pump one-level vaporizer 8 outer casing bottom, flow in fresh water collecting apparatus by means 11 along conduit 10 through check valve 9 after fresh water reaches a certain amount of formation certain pressure, realize the collection to fresh water, the saturated vapor that part after heat pump one-level vaporizer 8 is not condensed completely is pressed in heat pump condenser 13 by pneumatic plant 12 and adds the unsaturated hot steam of thermosetting, this unsaturated hot steam enters in bubbler 3 along steam-pipe 7, and vomit with the bottom of thermal form from raw material seawater holder 1 via bubbler 3, circulation like this, along with constantly producing of fresh water, raw material seawater concentration in raw material seawater holder 1 continues to increase, when the concentration of raw material seawater is close to the saturation concentration that raw material seawater is corresponding, opening conduits valve 19, high density seawater in raw material seawater holder 1 enters in strong solution preprocessor 17 by connecting tube 18, heat pump secondary evaporimeter 16 absorbs the heat in strong solution preprocessor 17 in high density seawater, the cooling of high density seawater leaves standstill analyses salt, the salinity of separating out is swept in time by rotor segment device 1702 and drops on sea salt travelling belt 1701, and then export appointment after-treatment device to by sea salt travelling belt 1701.
Gas after heat pump condenser 13 heats due to what wrap up in the thermal that bubbler 3 bloats, when thus thermal rises in seawater can with seawater generation heat trnasfer, and then the speed of evaporation of seawater is improved greatly, and then improves the efficiency of sea water desaltination.
Moreover this device also can extract crude salt while desalinizing seawater from high density seawater, realize the coproduction of continuous print water salt, make full use of resource, enhance productivity.
In addition, owing to adding waste heat waste heat collecting apparatus 4 in this device, the low-grade heat sources such as Appropriate application waste heat, used heat, make the efficiency of energy utilization of device improve, and energy consumption reduces.
The production method of a kind of bubbling negative pressure evaporation of the present invention sea water desaltination, comprises the following steps:
A. in raw material seawater holder 1, add seawater, heat pump one-level vaporizer 8, pneumatic plant 12, heat pump condenser 13 and bubbler 3 work simultaneously, and fresh water collecting apparatus by means collects fresh water;
B., when the concentration of seawater in raw material seawater holder 1 reaches the saturation concentration of seawater, the seawater in raw material seawater holder 1 flows in strong solution preprocessor 17 through connecting tube 18;
C. the heat pump secondary evaporimeter 16 in strong solution preprocessor 17 works, and the salinity in strong solution preprocessor 17 maritime interior waters emanates out from the bottom of strong solution preprocessor 17 gradually.
Also include step D after step C: rotor segment device 1702 rotary work, with the salinity bottom strong solution preprocessor 17 is scraped from.
Also comprise step e after step D: scrape from salinity fall on sea salt travelling belt 1701, this salinity exports to outside strong solution preprocessor 17 by sea salt travelling belt 1701.
This production method can carry out sea water desaltination efficiently, improves sea water desaltination speed, and can realize producing crude salt while continuous seepage desalinizes seawater, can realize the coproduction of continuous print water salt.Small-scale test test shows: when be 3.1% to salinity, medial temperature be the raw material seawater of 20 DEG C desalinate time, the power consumption that application bubbling negative pressure evaporation sea water desalinating plant carries out fresh water production is 2.8-3.67kW.h/m
3if this power consumption also can reduce 10%-20% when utilizing waste heat or used heat, simultaneously can a large amount of industrial crude salt of output.
Above-listed detailed description is illustrating for one of the present invention possible embodiments, and this embodiment is also not used to limit the scope of the claims of the present invention, and the equivalence that all the present invention of disengaging do is implemented or changed, and all should be contained in the scope of the claims of this case.
Claims (8)
1. a bubbling negative pressure evaporation sea water desalinating plant, comprise bottom to be provided with the raw material seawater holder of bubbler, fresh water collecting apparatus by means, to be provided with the steam-pipe of pneumatic plant, it is characterized in that: the top of described raw material seawater holder is connected with heat pump one-level vaporizer by steam-pipe, heat pump one-level vaporizer is connected with heat pump condenser by steam-pipe, heat pump condenser is connected with the bubbler in raw material seawater holder by steam-pipe, form the first loop, described heat pump one-level vaporizer is connected with fresh water collecting apparatus by means by conduit; Described raw material seawater holder is provided with the strong solution preprocessor of heat pump secondary evaporimeter in being connected by connecting tube, described heat pump secondary evaporimeter is connected with heat pump one-level vaporizer, described heat pump secondary evaporimeter is separately connected with heat pump compressor, heat pump compressor is connected with heat pump condenser, heat pump condenser is connected with heat pump one-level vaporizer by throttling set, forms second servo loop.
2. bubbling negative pressure evaporation sea water desalinating plant according to claim 1, is characterized in that: be provided with rotor segment device in described strong solution preprocessor.
3. bubbling negative pressure evaporation sea water desalinating plant according to claim 2, it is characterized in that: be provided with sea salt travelling belt in described strong solution preprocessor, described sea salt travelling belt is positioned at the below of described rotor segment device.
4. bubbling negative pressure evaporation sea water desalinating plant according to claim 1, is characterized in that: be provided with interchanger in described raw material seawater holder, this interchanger is connected with waste heat waste heat collecting apparatus.
5. bubbling negative pressure evaporation sea water desalinating plant according to claim 1, is characterized in that: described conduit is provided with check valve.
6., based on a production method for the bubbling negative pressure evaporation sea water desaltination of device described in claim 1, it is characterized in that: comprise the following steps:
A. in raw material seawater holder, add seawater, heat pump one-level vaporizer, pneumatic plant, heat pump condenser and bubbler work simultaneously, and fresh water collecting apparatus by means collects fresh water;
B., when the concentration of seawater in raw material seawater holder reaches the saturation concentration of seawater, the seawater in raw material seawater holder flows in strong solution preprocessor through connecting tube;
C. heat pump secondary evaporimeter work, the salinity in strong solution preprocessor maritime interior waters emanates out from the bottom of strong solution preprocessor gradually.
7. bubbling negative pressure evaporation sea water desaltination production method according to claim 6, is characterized in that: also comprise step D after described step C: rotor segment device rotary work, so the salinity bottom strong solution preprocessor is scraped from.
8. bubbling negative pressure evaporation sea water desaltination production method according to claim 7, is characterized in that: also comprise step e after described step D: scrape from salinity fall on sea salt travelling belt, this salinity exports outside strong solution preprocessor by sea salt travelling belt.
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| CN108751307A (en) * | 2018-07-02 | 2018-11-06 | 三峡大学 | A kind of marine desalination equipment and technique |
| CN110510686A (en) * | 2018-10-29 | 2019-11-29 | 山东大学 | A kind of temperature-uniforming plate and its seawater desalination system |
| CN111035948A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Atomizing device for evaporating pressure return liquid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111035948A (en) * | 2018-10-15 | 2020-04-21 | 中国石油化工股份有限公司 | Atomizing device for evaporating pressure return liquid |
| CN110510686A (en) * | 2018-10-29 | 2019-11-29 | 山东大学 | A kind of temperature-uniforming plate and its seawater desalination system |
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| CN104261497B (en) | 2015-09-30 |
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