CN204569467U - A kind of vacuum distilling sea water desalinating plant - Google Patents
A kind of vacuum distilling sea water desalinating plant Download PDFInfo
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- CN204569467U CN204569467U CN201520072693.5U CN201520072693U CN204569467U CN 204569467 U CN204569467 U CN 204569467U CN 201520072693 U CN201520072693 U CN 201520072693U CN 204569467 U CN204569467 U CN 204569467U
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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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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a kind of vacuum distilling sea water desalinating plant.It comprises connected transverse wall and steam separator and to be all located in housing and to be divided into upper and lower cavity, and condenser and distiller are divided in upper and lower cavity; Condenser connects the adapter of former sea; The upper and lower part of upper cavity connects respectively takes out non-condensable gas adapter and fresh water draining adapter; Distiller connects hot water adapter; Lower chamber connects and takes over former seawer outlet the feed seawater be connected and take over; Former seawater enters upper cavity through steam separator; The bottom of lower chamber connects concentrated seawater draining adapter; Take out non-condensable gas adapter to be connected with ejector vacuum pump; Fresh water pump, connected return flow solenoid valve II and specific conductivity table and return flow solenoid valve I is connected successively between fresh water draining adapter to the fresh-water tank be attached thereto.The utility model steam separator adopts filler, can improve the separation efficiency of sea water drops, and have lower pressure drop; Level of automation is high, is applicable to the fresh water preparation of boats and ships or offshore platform.
Description
Technical field
The utility model relates to a kind of vacuum distilling sea water desalinating plant utilizing diesel residual heat, belongs to water-treatment technology field.
Background technology
In places such as boats and ships, yacht or offshore platforms, no matter fresh water is to its power set or concerning the life of the staff on ship, be all very important expendable property.Sea water desaltination is the important channel increasing fresh water supply, and in desalination technology, Miniature seawater desalination device mainly adopts reverse osmosis method and distillation method two kinds at process aspect.Although reverse osmosis desalination device has plurality of advantages, but still also exist seawater quality requirement high, the shortcomings such as maintenance service is loaded down with trivial details, and system stability is low.Adopt distillation method, distillation seawater desalinating device wherein operationally mainly consumes heat energy as steam or hot water.And distillation desalination is to seawater quality strong adaptability, performance is relatively stable, and desalination water quality is good, and long service life, makes distillation desalting equipment run in the presence of a harsh environment and have certain technical guarantee and advantage.
In current existing vacuum distilling formula method for desalting seawater and device, there is following subject matter:
The control of 1 vacuum tightness: in the sea water desaltination of vacuum distilling formula, must control to operate under higher vacuum tightness.This is because the boiling point of seawater reduces along with the rising of vacuum tightness, and when low vacuum, the temperature of corresponding boiling sea water is relatively high, vaporization temperature is high, then the easy fouling in the surface of evaporator boat, the especially generation of hard incrustation scale, be unfavorable for the long-term continuous and steady operation of equipment, be not easy to safeguard; Another kind is that vacuum tightness is too high, then seethe with excitement too violent, the steam flow rate that vaporizer produces is higher, and the sea water drops of wherein carrying secretly cannot fully be separated by steam separator, causes produced fresh water saltiness to increase.And owing to marine site and season causing seawater temperature to change, the corresponding fluctuation causing vacuum tightness, affects the stable of operating process.
2 steam separators: the Main Function of steam separator is fully separated the sea water drops of carrying secretly in vaporizer upflowing vapor.One is that its separation efficiency is low, causes that produced fresh water saltiness increases and to produce water defective; Another kind is that steam separator pressure drop is comparatively large, and because steam flow resistance increases, vaporizer vacuum tightness reduces, and boiling sea water increase in temperature, brings negative impact to operation.
The control of 3 vaporizer seawater confluents: vaporizer seawater confluent has many-sided impact to device.Evaporator feedwater amount is low, then steam flow increases, and vacuum tightness reduces, and strong brine concentration is high simultaneously, easily causes fouling; Otherwise confluent is comparatively large, then steam flow reduces, and water production rate reduces, and the heat that strong brine is taken away increases.Therefore need to control suitable vaporizer seawater confluent.
Utility model content
The purpose of this utility model is to provide a kind of vacuum distilling sea water desalinating plant, and the utility model improves automatic controlling level, can improve the efficiency of sea water desaltination and shorten maintenance intervals; Be applicable to utilize the waste heat of the diesel engine of boats and ships or offshore platform to prepare fresh water.
The vacuum distilling sea water desalinating plant that the utility model provides, comprises and is arranged at condenser in housing and distiller;
The transverse wall be connected and steam separator to be all located in described housing and described housing are divided into upper cavity and lower chamber, and described condenser is arranged in described upper cavity, and described distiller is arranged in described lower chamber;
The water-in of described condenser connects the adapter of former sea intake, and the water outlet of described condenser connects the adapter of former seawer outlet; The top of described upper cavity connects takes out non-condensable gas adapter, and the bottom of described upper cavity connects fresh water draining adapter;
The water-in of described distiller connects hot water inlet adapter, described distiller water outlet connect hot water outlet adapter; The described lower chamber at the bottom place of described distiller connects the adapter of feed seawater, described feed seawater adapter is taken over described former seawer outlet and is connected; Described former seawater by the part of evaporating, enters described upper cavity by described steam separator through described distiller; The bottom of described lower chamber connects concentrated seawater draining adapter;
Describedly take out non-condensable gas adapter, the adapter of described former seawer outlet is all connected with ejector vacuum pump with described concentrated seawater draining adapter;
Described fresh water draining adapter connects fresh water pump and return flow solenoid valve I successively between the fresh-water tank be attached thereto, connect return flow solenoid valve II and specific conductivity table between described fresh water pump and described return flow solenoid valve I successively, described return flow solenoid valve II is connected with described specific conductivity table;
Described return flow solenoid valve I, described return flow solenoid valve II and described specific conductivity table are all connected on controlling box.
In the utility model, described in take out non-condensable gas adapter, the adapter of described former seawer outlet can all be connected with same ejector vacuum pump with described concentrated seawater draining adapter, also can connect from different ejector vacuum pumps respectively.
Above-mentioned device, described steam separator comprises the filler of filling in steam-water separator body and described steam-water separator body;
The material of described filler can adopt stainless steel or polypropylene, and described filler replaces silk screen, can provide larger moisture area, and have the pressure drop of reduction, can improve the separation efficiency of the sea water drops of carrying secretly in seawater steam.
Above-mentioned device, described filler is gauze structured packing or silk screen random packing, specifically can be CY type gauze structured packing, BX gauze structured packing or the random packing of θ ring.
Above-mentioned device, a motor-driven control valve I be located at described in take out non-condensable gas adapter on;
When the non-condensable gases in described condenser is extracted out by described ejector vacuum pump, described motor-driven control valve I can effectively control described non-condensable gases pass through described in take out non-condensable gas and take over the amount taken away, thus the vacuum tightness that can effectively control in described condenser, assurance device reliability of operation and stability, improve the degree of automated operation.
Above-mentioned device, a motor-driven control valve II is located in the adapter of described feed seawater;
The adapter of described feed seawater is controlled to the seawater increment in described distiller by described motor-driven control valve II, the fouling of the heating surface of described distiller can be alleviated, extend the cycle of cleaning described distiller, the turndown ratio of plant running can be improved, reduce maintenance cost.
Above-mentioned device, a chemical chemicals dosing plant is connected to the adapter of described feed seawater; Scale inhibitors enters in described distiller through described feed seawater adapter by described chemicals dosing plant, alleviates the heating surface fouling in described distiller, extends the cycle of the described distiller of cleaning.
Above-mentioned device, described motor-driven control valve I and described motor-driven control valve II are all linked on described controlling box;
Described controlling box controls the work of motor-driven control valve, return flow solenoid valve or the specific conductivity table be attached thereto.
The utility model has the following advantages:
(1) adopt filler to replace silk screen in steam separator, larger moisture area can be provided, the separation efficiency of the sea water drops of carrying secretly in seawater steam can be improved, and there is lower pressure drop.
(2) cannot not take out solidifyingly the motor-driven control valve I that trachea is provided with and can control non-condensable gases by taking out the non-condensable gas adapter amount of taking away, thus the vacuum tightness that can effectively control in condenser, assurance device reliability of operation and stability, improve the degree of automated operation.
(3) motor-driven control valve II controls the adapter of feed seawater to the seawater increment in distiller, can alleviate the fouling of the heating surface of distiller, extend the cycle of cleaning distiller, can improve the turndown ratio of plant running, reduce maintenance cost.
(4) in the utility model, in distiller, hot water inlet and outlet can be connected with the jacket water of diesel engine or utilize the hot water that the steam of diesel engine changes, the waste heat of diesel engine can be utilized by distiller by evaporation of seawater, reach the object of energy-saving and emission-reduction, there is significant economy, society and environmental benefit.
(5) the utility model is applied widely, reliable, and level of automation is high, is applicable to the fresh water preparation of boats and ships or offshore platform.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model vacuum distilling sea water desalinating plant.
In figure, mark is as follows:
1 housing, 2 condensers, 3 distillers, 4 steam separators, 5 ejector vacuum pumps, 6 fresh water pumps, 7 chemical chemicals dosing plants, 8 transverse walls, 9 controllers, 10 jacket water inlet connections, 11 jacket water downstream ends, 12 feed seawater adapters, 13 concentrated seawater draining adapters, 14 former sea intake adapters, 15 former seawer outlet adapters, 16 fresh water draining adapters, 17 take out non-condensable gas adapter, 18 motor-driven control valves I, 19 motor-driven control valve II, 20 return flow solenoid valve I, 21 return flow solenoid valves II, 22 specific conductivity tables, 23 fresh-water tanks.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but the utility model is not limited to following examples.
As shown in Figure 1, for the structure of the utility model vacuum distilling sea water desalinating plant, it comprises and is arranged at condenser 2 in housing 1 and distiller 3, the transverse wall 8 be connected and steam separator 4 to be all located in housing 1 and housing 1 to be divided into upper cavity (not marking in figure) and lower chamber (not marking in figure), gauze structured packing filled by steam separator 4, larger moisture area can be provided, and there is the pressure drop of reduction, the separation efficiency of the sea water drops of carrying secretly in seawater steam can be improved; Condenser 2 is arranged in upper cavity, and distiller 3 is arranged in lower chamber;
The water-in of condenser 2 connects former sea intake adapter 14, and the water outlet of condenser 2 connects former seawer outlet adapter 15; The top of upper cavity connects takes out non-condensable gas adapter 17, take out non-condensable gas adapter 17 to be provided with motor-driven control valve I 18 (controlling the vacuum tightness in condenser 2) and to take out non-condensable gas adapter 17 and be connected with ejector vacuum pump 5, motor-driven control valve I 18 is connected with controlling box 9, and the bottom of upper cavity connects fresh water draining adapter 16;
The water-in of distiller 3 connects jacket water inlet connection 10, the jacket water downstream end 11 of distiller 3; The lower chamber at the bottom place of distiller 3 connects feed seawater adapter 12, feed seawater adapter 12 is provided with motor-driven control valve II 19 (being connected on controlling box 9) and the nearly lower cavity end of feed seawater adapter 12 connects chemical chemicals dosing plant 7 (including Scale inhibitors), feed seawater adapter 12 is connected with former seawer outlet adapter 15, former seawer outlet adapter 15 is connected with ejector vacuum pump 5, the bottom of lower chamber connects concentrated seawater draining adapter 13, and concentrated seawater draining adapter 13 is connected with ejector vacuum pump 5;
Fresh water pump 6 and return flow solenoid valve I 20 (being connected with controlling box 9) is connected successively between fresh water draining adapter 16 to the fresh-water tank 9 be attached thereto, connect return flow solenoid valve II 21 (being connected with controlling box 9) and specific conductivity table 22 (being connected with controlling box 9) between fresh water pump 6 and return flow solenoid valve I 20 successively, return flow solenoid valve II 21 is connected with specific conductivity table 22.
The process that use the utility model carries out sea water desaltination is as follows:
Vacuum distilling sea water desalinating plant as shown in Figure 1, is pumped into seawater in former sea intake adapter 14 by external pump, then enters in condenser 2 and flows out through former seawer outlet adapter 15.In a former seawater part not suction ejector vacuum pump 5 flowed out from former seawer outlet adapter 15, the feed seawater adapter 12 that another part controls through motor-driven control valve II 19 enters in distiller 3, the controlled case 9 of motor-driven control valve II 19 controls to open or close, and regulates the former seawater amount entering distiller 3; Control chemical chemicals dosing plant 7 enters in lower cavity by Scale inhibitors through feed seawater adapter 12 simultaneously, to remove the incrustation scale on distiller 3 surface.Recirculated cooling water in the cylinder sleeve of diesel engine is delivered in distiller 3 through jacket water inlet connection 10 simultaneously, then enter in the cylinder sleeve of diesel engine 10 times through jacket water downstream end, the jacket water flowed through in distiller 3 will enter the former heating of seawater of distiller 3 and evaporate, the seawater of evaporation is by steam separator 4, gas seawater enters in condenser 2, the sea water drops of carrying secretly in gas seawater is by gauze structured packing in steam separator 4 instillation lower chamber, and the concentrated seawater in lower chamber is pumped to ejector vacuum pump 5 through concentrated seawater draining adapter 13 and discharged.Through the seawater gas of condenser 2 condensation, by fresh water draining adapter 16; Noncondensable gas seawater is taken away by taking out non-condensable gas adapter 17 by ejector vacuum pump 5, and take out the control of the controlled case 9 of the motor-driven control valve I 18 that non-condensable gas adapter 17 is established, to control the amount of the not solidifying seawater gas that ejector vacuum pump 5 is taken away, to control the vacuum tightness in condenser.Fresh water in fresh water draining adapter 16 is delivered in specific conductivity table 22 by fresh water pump 6, the data of detection are delivered in controlling box 9 by specific conductivity table 22, if obtained fresh water saltiness exceeds standard, controlling box 9 outputs signal and controls return flow solenoid valve I 20 cut out, return flow solenoid valve II 21 is opened, and is drained by fresh water; If obtained fresh water saltiness meets the requirements, controlling box 9 outputs signal and controls return flow solenoid valve II 21 cut out, return flow solenoid valve I 20 is opened, and fresh water is delivered in fresh-water tank 23.
By reference to the accompanying drawings the utility model is described although above-mentioned; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; when not departing from the utility model aim, can also make a lot of distortion, these distortion all belong within protection of the present utility model.
Claims (7)
1. a vacuum distilling sea water desalinating plant, is characterized in that: comprise and be arranged at condenser in housing and distiller;
The transverse wall be connected and steam separator to be all located in described housing and described housing are divided into upper cavity and lower chamber, and described condenser is arranged in described upper cavity, and described distiller is arranged in described lower chamber;
The water-in of described condenser connects the adapter of former sea intake, and the water outlet of described condenser connects the adapter of former seawer outlet; The top of described upper cavity connects takes out non-condensable gas adapter, and the bottom of described upper cavity connects fresh water draining adapter;
The water-in of described distiller connects hot water inlet adapter, and the water outlet of described distiller connects hot water outlet adapter; The described lower chamber at the bottom place of described distiller connects the adapter of feed seawater, described feed seawater adapter is taken over described former seawer outlet and is connected; Described former seawater by the part of evaporating, enters described upper cavity by described steam separator through described distiller; The bottom of described lower chamber connects concentrated seawater draining adapter;
Describedly take out non-condensable gas adapter, the adapter of described former seawer outlet is all connected with ejector vacuum pump with described concentrated seawater draining adapter;
Described fresh water draining adapter connects fresh water pump and return flow solenoid valve I successively between the fresh-water tank be attached thereto, connect return flow solenoid valve II and specific conductivity table between described fresh water pump and described return flow solenoid valve I successively, described return flow solenoid valve II is connected with described specific conductivity table;
Described return flow solenoid valve I, described return flow solenoid valve II and described specific conductivity table are all connected on controlling box.
2. device according to claim 1, is characterized in that: described steam separator comprises the filler of filling in steam-water separator body and described steam-water separator body.
3. device according to claim 2, is characterized in that: described filler is gauze structured packing or silk screen random packing.
4. device according to claim 3, is characterized in that: a motor-driven control valve I be located at described in take out non-condensable gas adapter on.
5. device according to claim 4, is characterized in that: a motor-driven control valve II is located in the adapter of described feed seawater.
6. device according to claim 5, is characterized in that: a chemical chemicals dosing plant is connected to the adapter of described feed seawater.
7. device according to claim 6, is characterized in that: described motor-driven control valve I and described motor-driven control valve II are all linked on described controlling box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520072693.5U CN204569467U (en) | 2015-02-02 | 2015-02-02 | A kind of vacuum distilling sea water desalinating plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520072693.5U CN204569467U (en) | 2015-02-02 | 2015-02-02 | A kind of vacuum distilling sea water desalinating plant |
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| CN204569467U true CN204569467U (en) | 2015-08-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649353A (en) * | 2015-02-02 | 2015-05-27 | 中国海洋石油总公司 | Vacuum-distillation seawater desalinating device and seawater desalinating method thereof |
| CN105882997A (en) * | 2016-04-07 | 2016-08-24 | 中国南方航空工业(集团)有限公司 | Engine cleaning vehicle |
-
2015
- 2015-02-02 CN CN201520072693.5U patent/CN204569467U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104649353A (en) * | 2015-02-02 | 2015-05-27 | 中国海洋石油总公司 | Vacuum-distillation seawater desalinating device and seawater desalinating method thereof |
| CN105882997A (en) * | 2016-04-07 | 2016-08-24 | 中国南方航空工业(集团)有限公司 | Engine cleaning vehicle |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161011 Address after: 100027 Beijing city Dongcheng District Dongzhimen Street No. 6 Patentee after: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Patentee after: BEIJING COLD ENERGY UTILIZATION INSTITUTE OF CNOOC ENERGY TECHNOLOGY & SERVICE LTD. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. Patentee before: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Patentee before: BEIJING COLD ENERGY UTILIZATION INSTITUTE OF CNOOC ENERGY TECHNOLOGY & SERVICE LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221024 Address after: No. 6, Dongzhi gate, Dongcheng District, Beijing, Beijing Patentee after: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Patentee after: CNOOC Energy Development Co.,Ltd. Clean Energy Branch Address before: 100027, No. 6, east side street, Dongcheng District, Beijing Patentee before: CNOOC ENERGY TECHNOLOGY & SERVICES Ltd. Patentee before: BEIJING COLD ENERGY UTILIZATION INSTITUTE OF CNOOC ENERGY TECHNOLOGY & SERVICE LTD. |