TW201332902A - Integrated-type energy saving sea water desalination apparatus - Google Patents
Integrated-type energy saving sea water desalination apparatus Download PDFInfo
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- TW201332902A TW201332902A TW101103256A TW101103256A TW201332902A TW 201332902 A TW201332902 A TW 201332902A TW 101103256 A TW101103256 A TW 101103256A TW 101103256 A TW101103256 A TW 101103256A TW 201332902 A TW201332902 A TW 201332902A
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- seawater
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- 239000013535 sea water Substances 0.000 title claims abstract description 134
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 41
- 238000002156 mixing Methods 0.000 claims abstract description 56
- 238000001704 evaporation Methods 0.000 claims abstract description 44
- 238000007710 freezing Methods 0.000 claims abstract description 38
- 230000008014 freezing Effects 0.000 claims abstract description 38
- 230000002745 absorbent Effects 0.000 claims abstract description 21
- 239000002250 absorbent Substances 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims description 51
- 230000008020 evaporation Effects 0.000 claims description 38
- 238000004821 distillation Methods 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 112
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 238000009835 boiling Methods 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 239000013505 freshwater Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
本發明係關於一種海水淡化裝置，尤其是一種串聯數個海水淡化設備，並回收廢熱作為各海水淡化設備運作所需能源之整合式節能海水淡化裝置。The invention relates to a seawater desalination device, in particular to an integrated energy-saving seawater desalination device which uses several seawater desalination devices in series and recovers waste heat as energy required for operation of each seawater desalination plant.
目前各種海水淡化設備所使用之海水淡化原理，大致上包含有冷凝法、冷凍法、逆滲透法及電透析法等。其中，冷凝法係將從海水中蒸散出來的水蒸氣冷凝而獲得淡水，冷凝法常見之應用包含了蒸餾法、閃蒸法及太陽能法等，分別透過加熱海水至沸騰、將海水注入低壓環境以及自然蒸發之原理，使海水的水分能夠以水蒸氣態與鹽分分離。冷凍法則是將海水降溫至凝固點，使海水中的水分變成冰結晶而與其他液態物質分離，再將冰結晶清洗及溶化即可取得淡水。At present, the principles of seawater desalination used in various desalination plants generally include condensation, freezing, reverse osmosis, and electrodialysis. Among them, the condensation method condenses water vapor evaporated from seawater to obtain fresh water. Common applications of the condensation method include distillation, flashing, and solar energy, respectively, by heating seawater to boiling, injecting seawater into a low-pressure environment, and The principle of natural evaporation allows the moisture of seawater to be separated from the salt by water vapor. The freezing method is to cool the seawater to a freezing point, so that the water in the seawater becomes ice crystals and separate from other liquid substances, and then the ice crystals are washed and dissolved to obtain fresh water.
一般而言，由於運作原理之差異，各種海水淡化設備所需之耗能形式亦不盡相同，例如：使用蒸餾法之海水淡化設備運作時，需消耗能源對海水致熱；使用冷凍法之海水淡化設備運作時，則需消耗能源對海水致冷。然而，使用蒸餾法的海水淡化設備與使用冷凍法的海水淡化設備，通常不會同時設置於同一海水淡化廠中，使得各種海水淡化設備需各自消耗能源進行海水淡化，且廢能無法相互回收利用，因此整體而言，海水淡化之效益並不理想。In general, due to the difference in operating principles, the various types of seawater desalination equipment require different forms of energy consumption. For example, when using a desalination plant that uses distillation, it consumes energy to heat the seawater; When desalination equipment is in operation, it consumes energy to cool the seawater. However, seawater desalination equipment using distillation method and seawater desalination equipment using freezing method are usually not installed in the same desalination plant at the same time, so that various desalination plants need to consume energy for seawater desalination, and waste energy cannot be recycled to each other. Therefore, overall, the benefits of seawater desalination are not ideal.
本發明目的乃解決習知技術之缺點，以提供一種整合式節能海水淡化裝置，係可整合使用蒸餾法及冷凍法的海水淡化設備，將廢能回收利用以達節能效果者。The object of the present invention is to solve the shortcomings of the prior art, and to provide an integrated energy-saving seawater desalination device, which can integrate seawater desalination equipment using distillation method and freezing method, and recycle waste energy to achieve energy saving effect.
為達到前述發明目的，本發明之整合式節能海水淡化裝置，包含：一液氣混合槽，供工作氣體與吸收劑在槽中混合成二元溶液；一加壓件，連通於該液氣混合槽，用以加壓該二元溶液；一蒸發槽，連通於該加壓件，用以引接該加壓後的二元溶液，且該蒸發槽中設有一可加熱該二元溶液至液氣分離之加熱器；一海水蒸餾塔及一海水冷凍塔；其中，該蒸發槽另由一管件導引由該蒸發槽中蒸散出來的工作氣體，且該管件依序穿過該海水蒸餾塔及海水冷凍塔而連通至該液氣混合槽，使該工作氣體能夠與該海水蒸餾塔及海水冷凍塔中的海水進行熱交換。In order to achieve the foregoing object, the integrated energy-saving seawater desalination apparatus of the present invention comprises: a liquid-gas mixing tank for mixing a working gas and an absorbent in a tank to form a binary solution; and a pressurizing member connected to the liquid-gas mixture a tank for pressurizing the binary solution; an evaporation tank connected to the pressurizing member for guiding the pressurized binary solution, and the evaporation tank is provided with a heating medium to the liquid gas a separating heater; a seawater distillation tower and a seawater freezing tower; wherein the evaporation tank is further guided by a pipe member to the working gas evaporated from the evaporation tank, and the pipe member sequentially passes through the seawater distillation tower and seawater The freezing tower is connected to the liquid-gas mixing tank to allow the working gas to exchange heat with the seawater in the seawater distillation tower and the seawater freezing tower.
本發明之整合式節能海水淡化裝置，其中，該液氣混合槽設有一噴灑器，以透過噴灑的方式將該吸收劑導入該液氣混合槽中。The integrated energy-saving seawater desalination apparatus of the present invention, wherein the liquid-gas mixing tank is provided with a sprinker for introducing the absorbent into the liquid-gas mixing tank by means of spraying.
本發明之整合式節能海水淡化裝置，其中，該液氣混合槽連接一儲氣槽，以容裝並向該液氣混合槽導入該工作氣體。The integrated energy-saving seawater desalination apparatus of the present invention, wherein the liquid-gas mixing tank is connected to a gas storage tank for accommodating and introducing the working gas to the liquid-gas mixing tank.
本發明之整合式節能海水淡化裝置，其中，該蒸發槽設有一液體回流口，該液體回流口連通該噴灑器，以將該蒸發槽中的液體導引流回該液氣混合槽中。In the integrated energy-saving seawater desalination apparatus of the present invention, the evaporation tank is provided with a liquid return port, and the liquid return port communicates with the sprayer to guide the liquid in the evaporation tank back into the liquid-gas mixing tank.
本發明之整合式節能海水淡化裝置，其中，該液氣混合槽與蒸發槽之間設有一第一洩壓閥，以供該蒸發槽中的液體通過該第一洩壓閥降壓降溫後才回流至該液氣混合槽。The integrated energy-saving seawater desalination device of the present invention, wherein a first pressure relief valve is disposed between the liquid gas mixing tank and the evaporation tank, so that the liquid in the evaporation tank is depressurized and cooled by the first pressure relief valve. Return to the liquid-gas mixing tank.
本發明之整合式節能海水淡化裝置，其中，該海水蒸餾塔及海水冷凍塔之間設有一海水預熱槽，該管件穿過該海水預熱槽。In the integrated energy-saving seawater desalination apparatus of the present invention, a seawater preheating tank is disposed between the seawater distillation tower and the seawater freezing tower, and the pipe member passes through the seawater preheating tank.
本發明之整合式節能海水淡化裝置，其中，該管件在該海水預熱槽與海水冷凍塔之間設有一第二洩壓閥，以供該工作氣體在降壓降溫後才通過該海水冷凍塔。The integrated energy-saving seawater desalination device of the present invention, wherein the pipe member is provided with a second pressure relief valve between the seawater preheating tank and the seawater freezing tower, so that the working gas passes through the seawater freezing tower after the pressure reduction and temperature reduction .
本發明之整合式節能海水淡化裝置，其中，該管件穿過該海水冷凍塔後設有一加壓器，以供該工作氣體升壓後才再被導入該液氣混合槽。In the integrated energy-saving seawater desalination apparatus of the present invention, the tube member is disposed through the seawater freezing tower and is provided with a pressurizer for the working gas to be pressurized before being introduced into the liquid-gas mixing tank.
為讓本發明之上述及其他目的、特徵及優點能更明顯易懂，下文特舉本發明之較佳實施例，並配合所附圖式，作詳細說明如下：The above and other objects, features and advantages of the present invention will become more <RTIgt;
本發明以下所述之「常溫」，係指約27℃者，為熟悉該項技藝者所能理解；本發明以下所述之「高溫」，係指溫度高於該「常溫」者；本發明以下所述之「低溫」，係指溫度低於該「常溫」者。The "normal temperature" as described below in the present invention means that the temperature is higher than the "normal temperature" in the present invention. The "low temperature" as used below means the temperature below the "normal temperature".
本發明以下所述之「常壓」，係指約1大氣壓者，為熟悉該項技藝者所能理解；本發明以下所述之「高壓」，係指壓力高於該「常壓」者；本發明以下所述之「低壓」，係指壓力低於該「常壓」者。The "atmospheric pressure" as used in the present invention refers to a pressure of about 1 atmosphere, which can be understood by those skilled in the art; the "high pressure" as described below in the present invention means that the pressure is higher than the "normal pressure"; The "low pressure" as used hereinafter in the present invention means that the pressure is lower than the "normal pressure".
請參閱第1圖，其係本發明之較佳實施例，該整合式節能海水淡化裝置大致包含一液氣混合槽1、一蒸發槽2、一加壓件3、一海水蒸餾塔4、一海水冷凍塔5及數個管件6，該液氣混合槽1與蒸發槽2由該數個管件6連通，且其中一管件6穿過該海水蒸餾塔4及海水冷凍塔5以與海水進行不同階段之熱交換。Referring to FIG. 1 , which is a preferred embodiment of the present invention, the integrated energy-saving seawater desalination apparatus generally comprises a liquid-gas mixing tank 1, an evaporation tank 2, a pressurizing member 3, a seawater distillation tower 4, and a a seawater freezing tower 5 and a plurality of pipe members 6, the liquid gas mixing tank 1 and the evaporation tank 2 are connected by the plurality of pipe members 6, and one of the pipe members 6 passes through the seawater distillation column 4 and the seawater freezing tower 5 to be different from seawater. Stage heat exchange.
該液氣混合槽1設有連通至內部之一液體輸入口11、一氣體輸入口12及一混合液輸出口13；一吸收劑可通過該液體輸入口11輸入該液氣混合槽1中，該氣體輸入口12可由一第一管件6a連接一儲氣槽14，該儲氣槽14中容裝有可溶於該吸收劑之氣體(以下稱為「工作氣體」)，該工作氣體可流經該氣體輸入口12而填充於該液氣混合槽1中，使該吸收劑及工作氣體可於該液氣混合槽1中混合形成二元溶液L，並存積於該液氣混合槽1之底部，以通過該混合液輸出口13而流出該液氣混合槽1。The liquid-gas mixing tank 1 is provided with a liquid input port 11 , a gas input port 12 and a mixed liquid output port 13; an absorbent can be input into the liquid-gas mixing tank 1 through the liquid input port 11 The gas inlet port 12 can be connected to a gas storage tank 14 by a first pipe member 6a. The gas storage tank 14 contains a gas soluble in the absorbent (hereinafter referred to as "working gas"), and the working gas can flow. The gas inlet port 12 is filled in the liquid-gas mixing tank 1 so that the absorbent and the working gas can be mixed in the liquid-gas mixing tank 1 to form a binary solution L, and stored in the liquid-gas mixing tank 1 The bottom portion flows out of the liquid-gas mixing tank 1 through the mixed liquid output port 13.
其中，該儲氣槽14中之氣體較佳呈常壓低溫態。該吸收劑可以為氨水或水等帶有氫鍵之溶液，當該吸收劑為氨水時，該工作氣體可以選擇為氦氣或氮氣；當該吸收劑為水時，該工作氣體可以選擇為二氧化碳。此外，為增加該吸收劑與工作氣體之混合效率，該液氣混合槽1之液體輸入口11處較佳可設有一噴灑器15，以透過噴灑的方式將該吸收劑導入該液氣混合槽1，使該工作氣體可快速地溶於該吸收劑中。The gas in the gas storage tank 14 is preferably in a normal temperature and low temperature state. The absorbent may be a solution with hydrogen bonding such as ammonia water or water. When the absorbent is ammonia water, the working gas may be selected as helium or nitrogen; when the absorbent is water, the working gas may be selected as carbon dioxide. . In addition, in order to increase the mixing efficiency of the absorbent and the working gas, the liquid inlet port 11 of the liquid-gas mixing tank 1 may preferably be provided with a sprinkler 15 for introducing the absorbent into the liquid-gas mixing tank by spraying. 1. The working gas can be quickly dissolved in the absorbent.
該蒸發槽2設有連通至內部之一混合液輸入口21、一液體回流口22及一氣體輸出口23。該混合液輸入口21由一第二管件6b連通該液氣混合槽1之混合液輸出口13，以引接該液氣混合槽1中的二元溶液L；該液體回流口22由一第三管件6c連通該噴灑器15(即對應至該液氣混合槽1之混合液輸出口13)，用以將該蒸發槽2中的液體導引流回該液氣混合槽1中；該氣體輸出口23可設於該蒸發槽2之頂部或鄰於頂部處，並供一第四管件6d之一端連接，以將該蒸發槽2中的氣體導入該第四管件6d中，此外，該第四管件6d之另一端可連接至該儲氣槽14，或是沒有設置該儲氣槽14時，該第四管件6d之另一端可直接連接該液氣混合槽1之氣體輸入口12。另，該蒸發槽2中還設有一加熱器24，以加熱該蒸發槽2中的二元溶液L至液氣分離。The evaporation tank 2 is provided with a mixed liquid input port 21, a liquid return port 22 and a gas output port 23 connected to the inside. The mixed liquid input port 21 is connected to the mixed liquid output port 13 of the liquid-gas mixing tank 1 by a second pipe member 6b for guiding the binary solution L in the liquid-gas mixing tank 1; the liquid return port 22 is a third The pipe member 6c communicates with the sprinkler 15 (ie, the mixed liquid output port 13 corresponding to the liquid-gas mixing tank 1) for guiding the liquid in the evaporation tank 2 back into the liquid-gas mixing tank 1; the gas output The mouth 23 may be disposed at the top of the evaporation tank 2 or adjacent to the top, and connected to one end of a fourth pipe member 6d to introduce the gas in the evaporation tank 2 into the fourth pipe member 6d, and further, the fourth The other end of the pipe member 6d can be connected to the gas storage tank 14, or when the gas storage tank 14 is not provided, the other end of the fourth pipe member 6d can be directly connected to the gas input port 12 of the liquid-gas mixing tank 1. In addition, a heater 24 is further disposed in the evaporation tank 2 to heat the binary solution L in the evaporation tank 2 to liquid-gas separation.
該加壓件3設於該第二管件6b，以連通該液氣混合槽1之混合液輸出口13及該蒸發槽2之混合液輸入口21，使得該加壓件3可加壓來自該液氣混合槽1之二元溶液L，並將加壓後的二元溶液L打入該蒸發槽2中。該加壓件3可以選擇為一泵浦。The pressing member 3 is disposed on the second pipe member 6b to communicate with the mixed liquid output port 13 of the liquid-gas mixing tank 1 and the mixed liquid input port 21 of the evaporation tank 2, so that the pressing member 3 can be pressurized from the The binary solution L of the liquid-gas mixing tank 1 is driven into the evaporation tank 2 by the pressurized binary solution L. The pressing member 3 can be selected to be a pump.
該海水蒸餾塔4係可將海水被加熱蒸發之水蒸氣凝結並收集的海水淡化設備，該海水冷凍塔5則是可將海水降溫冷凍以取得冰結晶的海水淡化設備，惟該海水蒸餾塔4及海水冷凍塔5之細部結構為所屬技術領域中具有通常知識者可以理解，且非本發明的主要技術特徵，在此容不贅述。該第四管件6d可穿過該海水蒸餾塔4及海水冷凍塔5，使得不同溫度與壓力的工作氣體可與海水進行熱交換；其中，該海水蒸餾塔4與該蒸發槽2相鄰，該海水冷凍塔5與該液氣混合槽1相鄰，且該海水蒸餾塔4及海水冷凍塔5之間還可以設有一海水預熱槽7，且該第四管件6d同樣可穿過該海水預熱槽7。The seawater distillation tower 4 is a seawater desalination apparatus which condenses and collects water vapor which is heated and evaporated by seawater, and the seawater freezing tower 5 is a seawater desalination apparatus which can cool and freeze seawater to obtain ice crystals, but the seawater distillation tower 4 The detailed structure of the seawater freezing tower 5 is understood by those skilled in the art and is not the main technical features of the present invention, and will not be described herein. The fourth pipe member 6d can pass through the seawater distillation column 4 and the seawater freezing tower 5, so that working gases of different temperatures and pressures can exchange heat with seawater; wherein the seawater distillation column 4 is adjacent to the evaporation tank 2, The seawater freezing tower 5 is adjacent to the liquid gas mixing tank 1, and a seawater preheating tank 7 may be disposed between the seawater distillation tower 4 and the seawater freezing tower 5, and the fourth tubular member 6d may also pass through the seawater preheating Hot chute 7.
據由前述結構，該儲氣槽14中常壓低溫態之工作氣體，可流經該氣體輸入口12而填充於該液氣混合槽1中，故由該噴灑器15噴入該液氣混合槽1中的吸收劑，可快速地與該工作氣體混合形成常壓低溫之二元溶液L，並存積於該液氣混合槽1之底部。According to the foregoing structure, the working gas in the atmospheric pressure and low temperature state of the gas storage tank 14 can be filled in the liquid gas mixing tank 1 through the gas inlet port 12, so that the liquid gas mixture is injected from the sprayer 15 The absorbent in the tank 1 can be rapidly mixed with the working gas to form a binary solution L of normal pressure and low temperature, and is stored at the bottom of the liquid-gas mixing tank 1.
該二元溶液L由該加壓件3抽取，通過該混合液輸出口13而流出該液氣混合槽1，且該加壓件3可對該二元溶液L加壓，使該二元溶液L呈高壓低溫態，並流經該混合液輸入口21而導入該蒸發槽2中。又，該二元溶液L在該蒸發槽2中，由該加熱器24加熱升溫而呈高溫高壓態，並利用該吸收劑與工作氣體具有不同沸點的特性，當該二元溶液L之溫度達該工作氣體之沸點時，原本溶於該二元溶液L中的工作氣體將可從該二元溶液L中釋出而液氣分離，且該工作氣體可呈高壓高溫態。The binary solution L is extracted from the pressurizing member 3, flows out of the liquid-gas mixing tank 1 through the mixed liquid output port 13, and the pressurizing member 3 can pressurize the binary solution L to make the binary solution L is in a high pressure low temperature state and flows through the mixed liquid input port 21 to be introduced into the evaporation tank 2. Further, the binary solution L is heated in the evaporation tank 2 by the heater 24 to be in a high temperature and high pressure state, and has a characteristic that the absorbent has a different boiling point from the working gas, and when the temperature of the binary solution L reaches When the boiling point of the working gas, the working gas originally dissolved in the binary solution L can be released from the binary solution L and the liquid gas is separated, and the working gas can be in a high pressure and high temperature state.
值得注意的是，本發明係將工作氣體溶於液態的吸收劑中，並對二元溶液加壓加溫，最後再使該工作氣體從該二元溶液中蒸散出來，以獲得高溫高壓態之工作氣體；以此方式獲得高溫高壓態之工作氣體，將比直接對工作氣體加壓加溫更加節省能源，從而得以大幅地降低能源成本。It should be noted that the present invention dissolves the working gas in the liquid absorbent, pressurizes and heats the binary solution, and finally evaporates the working gas from the binary solution to obtain a high temperature and high pressure state. Working gas; in this way, the working gas obtained in the high temperature and high pressure state will save energy more than directly pressurizing the working gas, thereby greatly reducing the energy cost.
另一方面，該蒸發槽2中容裝的二元溶液L，在該工作氣體蒸散出來後，該高溫高壓之吸收劑或是仍溶有部分工作氣體之二元溶液L，可由該蒸發槽2之液體回流口22流回該液氣混合槽1之液體輸入口11，以透過該噴灑器15再度噴入該液氣混合槽1中，使該吸收劑可不斷地被循環使用。其中，該高溫高壓之吸收劑或仍溶有部分工作氣體的二元溶液L，較佳通過一設於該第三管件6c的第一洩壓閥V1，在降壓降溫後才回流至該液氣混合槽1，且該第一洩壓閥V1還可用以控制流量，以提升液化作業之安全性。再者，該高溫高壓之吸收劑或二元溶液L可在回流至該液氣混合槽1前，與引接自該液氣混合槽1而欲導入該蒸發槽2中的二元溶液L進行熱交換，以預熱欲導入該蒸發槽2中的二元溶液L，使該二元溶液L進入該蒸發槽2後能更快速地被加熱至液氣分離，從而提高該工作氣體之蒸散效率。On the other hand, the binary solution L contained in the evaporation tank 2, after the working gas is evaporated, the high-temperature high-pressure absorbent or the binary solution L still containing a part of the working gas can be used by the evaporation tank 2 The liquid return port 22 flows back to the liquid inlet port 11 of the liquid-gas mixing tank 1 to be re-injected into the liquid-gas mixing tank 1 through the sprayer 15, so that the absorbent can be continuously recycled. The high temperature and high pressure absorbent or the binary solution L still containing a part of the working gas is preferably returned to the liquid after the pressure drop is lowered by a first pressure relief valve V1 disposed on the third pipe member 6c. The gas mixing tank 1 and the first pressure relief valve V1 can also be used to control the flow rate to enhance the safety of the liquefaction operation. Further, the high-temperature high-pressure absorbent or the binary solution L may be heated before being returned to the liquid-gas mixing tank 1 and the binary solution L introduced from the liquid-gas mixing tank 1 to be introduced into the evaporation tank 2. Exchanging to preheat the binary solution L to be introduced into the evaporation tank 2, the binary solution L can be heated to the liquid-gas separation more quickly after entering the evaporation tank 2, thereby improving the evapotranspiration efficiency of the working gas.
此外，從該二元溶液L中蒸散出來的高溫高壓工作氣體，可由該蒸發槽2之氣體輸出口23導入該第四管件6d內，並在穿過該海水蒸餾塔4時，與海水進行熱交換，使該海水蒸餾塔4中的海水升溫至沸騰，以蒸散出水蒸氣，可供冷凝以取得淡水。Further, the high-temperature and high-pressure working gas evaporated from the binary solution L can be introduced into the fourth pipe member 6d from the gas outlet port 23 of the evaporation tank 2, and is heated with seawater when passing through the seawater distillation column 4. In exchange, the seawater in the seawater distillation column 4 is heated to boiling to evaporate water vapor for condensation to obtain fresh water.
穿過該海水蒸餾塔4後，該工作氣體之溫度將因熱交換而下降，此時，該工作氣體可隨著該第四管件6d之導引而穿過該海水預熱槽7，並以剩餘之熱能與該海水預熱槽7中的海水進行熱交換，可提升該海水預熱槽7中海水的溫度，使導入該海水蒸餾塔4之海水能夠較快速地被加溫至沸點，以提升海水蒸散的效率。After passing through the seawater distillation column 4, the temperature of the working gas will decrease due to heat exchange, and at this time, the working gas can pass through the seawater preheating tank 7 as the fourth pipe member 6d is guided, and The remaining heat energy exchanges heat with the seawater in the seawater preheating tank 7, and the temperature of the seawater in the seawater preheating tank 7 can be raised, so that the seawater introduced into the seawater distillation tower 4 can be warmed to the boiling point relatively quickly, Improve the efficiency of seawater evapotranspiration.
該第四管件6d穿過該海水預熱槽7後，該工作氣體之溫度將因熱交換而再度下降，且該工作氣體可通過一設於該第四管件6d並位於該海水預熱槽7與海水冷凍塔5之間的第二洩壓閥V2，降壓降溫呈低溫低壓態(溫度約低於-30℃左右)，並在該第四管件6d穿過該海水冷凍塔5時，使低溫的工作氣體與海水進行熱交換，令該海水冷凍塔5中的海水降溫至凝結點而產生冰結晶。After the fourth pipe member 6d passes through the seawater preheating tank 7, the temperature of the working gas will be lowered again due to heat exchange, and the working gas can be disposed in the fourth pipe member 6d and located in the seawater preheating tank 7 The second pressure relief valve V2 between the seawater freezing tower 5 and the bottom pressure reducing temperature is in a low temperature and low pressure state (the temperature is about -30 ° C or so), and when the fourth pipe member 6d passes through the seawater freezing tower 5, The low-temperature working gas exchanges heat with seawater, and the seawater in the seawater freezing tower 5 is cooled to a condensation point to generate ice crystals.
該第四管件6d穿過該海水冷凍塔5後，該工作氣體之溫度將因熱交換而回升(約為-30~0℃左右)，以及通過一加壓器P使壓力回升，從而再度以常壓低溫態導入該儲氣槽14中儲放，並可流經該氣體輸入口12而填充於該液氣混合槽1中，使該工作氣體可不斷地被循環使用。After the fourth pipe member 6d passes through the seawater freezing tower 5, the temperature of the working gas will rise due to heat exchange (about -30~0 °C), and the pressure is raised by a pressurizer P, thereby again The atmospheric pressure low temperature state is introduced into the gas storage tank 14 and can be filled in the liquid gas mixing tank 1 through the gas inlet port 12, so that the working gas can be continuously recycled.
綜上所述，本發明之整合式節能海水淡化裝置，係可整合海水蒸餾塔及海水冷凍塔於同一海水淡化裝置中，並透過節能的方式產生高溫高壓的工作氣體，使工作氣體穿過該海水蒸餾塔以蒸餾海水，並於降溫後穿過該海水冷凍塔以結凍海水；同時，利用該海水冷凍塔運作時所排放之廢熱使低溫的工作氣體回溫，從而間接用作該海水蒸餾塔運作時所需之能源，故可有效回收利用廢能，從而提升該海水淡化裝置運作之效益。In summary, the integrated energy-saving seawater desalination device of the present invention integrates a seawater distillation tower and a seawater freezing tower in the same seawater desalination device, and generates a high-temperature and high-pressure working gas through an energy-saving manner, so that the working gas passes through the working gas. The seawater distillation tower distills seawater and passes through the seawater freezing tower to freeze the seawater after cooling; meanwhile, the waste heat discharged during operation of the seawater freezing tower returns the low temperature working gas to indirectly, thereby indirectly serving as the seawater distillation The energy required for the operation of the tower can effectively recycle the waste energy, thereby enhancing the efficiency of the operation of the desalination plant.
雖然本發明已利用上述較佳實施例揭示，然其並非用以限定本發明，任何熟習此技藝者在不脫離本發明之精神和範圍之內，相對上述實施例進行各種更動與修改仍屬本發明所保護之技術範疇，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.
1．．．液氣混合槽1. . . Liquid gas mixing tank
11．．．液體輸入口11. . . Liquid inlet
12．．．氣體輸入口12. . . Gas inlet
13．．．混合液輸出口13. . . Mixed liquid outlet
14．．．儲氣槽14. . . Gas storage tank
15．．．噴灑器15. . . Sprinkler
2．．．蒸發槽2. . . Evaporation tank
21．．．混合液輸入口twenty one. . . Mixed liquid inlet
22．．．液體回流口twenty two. . . Liquid return port
23．．．氣體輸出口twenty three. . . Gas outlet
24．．．加熱器twenty four. . . Heater
3．．．加壓件3. . . Pressurized part
4．．．海水蒸餾塔4. . . Seawater distillation tower
5．．．海水冷凍塔5. . . Seawater freezing tower
6．．．管件6. . . Pipe fittings
6a．．．第一管件6a. . . First pipe fitting
6b．．．第二管件6b. . . Second pipe fitting
6c．．．第三管件6c. . . Third pipe fitting
6d．．．第四管件6d. . . Fourth pipe fitting
7．．．海水預熱槽7. . . Seawater preheating tank
L．．．二元溶液L. . . Binary solution
V1．．．第一洩壓閥V1. . . First pressure relief valve
V2．．．第二洩壓閥V2. . . Second pressure relief valve
P．．．加壓器P. . . Pressurizer
第1圖：本發明較佳實施例之裝置架構示意圖。Figure 1 is a block diagram showing the structure of a device in accordance with a preferred embodiment of the present invention.
1．．．液氣混合槽1. . . Liquid gas mixing tank
11．．．液體輸入口11. . . Liquid inlet
12．．．氣體輸入口12. . . Gas inlet
13．．．混合液輸出口13. . . Mixed liquid outlet
14．．．儲氣槽14. . . Gas storage tank
15．．．噴灑器15. . . Sprinkler
2．．．蒸發槽2. . . Evaporation tank
21．．．混合液輸入口twenty one. . . Mixed liquid inlet
22．．．液體回流口twenty two. . . Liquid return port
23．．．氣體輸出口twenty three. . . Gas outlet
24．．．加熱器twenty four. . . Heater
3．．．加壓件3. . . Pressurized part
4．．．海水蒸餾塔4. . . Seawater distillation tower
5．．．海水冷凍塔5. . . Seawater freezing tower
6．．．管件6. . . Pipe fittings
6a．．．第一管件6a. . . First pipe fitting
6b．．．第二管件6b. . . Second pipe fitting
6c．．．第三管件6c. . . Third pipe fitting
6d．．．第四管件6d. . . Fourth pipe fitting
7．．．海水預熱槽7. . . Seawater preheating tank
L．．．二元溶液L. . . Binary solution
V1．．．第一洩壓閥V1. . . First pressure relief valve
V2．．．第二洩壓閥V2. . . Second pressure relief valve
P．．．加壓器P. . . Pressurizer
Claims (8)
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| TW101103256A TW201332902A (en) | 2012-02-01 | 2012-02-01 | Integrated-type energy saving sea water desalination apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| TW101103256A TW201332902A (en) | 2012-02-01 | 2012-02-01 | Integrated-type energy saving sea water desalination apparatus |
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| TW201332902A true TW201332902A (en) | 2013-08-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991985A (en) * | 2014-05-28 | 2014-08-20 | 常州大学 | Hydrate-process seawater desalting device utilizing LNG (liquefied natural gas) gasifying cold energy and hydrate-process seawater desalting method utilizing LNG gasifying cold energy |
| TWI577433B (en) * | 2013-08-23 | 2017-04-11 | 晟大國際股份有限公司 | Liquid desalinating device |
| TWI694972B (en) * | 2018-12-25 | 2020-06-01 | 國立屏東科技大學 | Solar seawater desalination device |
-
2012
- 2012-02-01 TW TW101103256A patent/TW201332902A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI577433B (en) * | 2013-08-23 | 2017-04-11 | 晟大國際股份有限公司 | Liquid desalinating device |
| CN103991985A (en) * | 2014-05-28 | 2014-08-20 | 常州大学 | Hydrate-process seawater desalting device utilizing LNG (liquefied natural gas) gasifying cold energy and hydrate-process seawater desalting method utilizing LNG gasifying cold energy |
| TWI694972B (en) * | 2018-12-25 | 2020-06-01 | 國立屏東科技大學 | Solar seawater desalination device |
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