TW201315923A - A gas liquefaction apparatus - Google Patents

A gas liquefaction apparatus Download PDF

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Publication number
TW201315923A
TW201315923A TW100136932A TW100136932A TW201315923A TW 201315923 A TW201315923 A TW 201315923A TW 100136932 A TW100136932 A TW 100136932A TW 100136932 A TW100136932 A TW 100136932A TW 201315923 A TW201315923 A TW 201315923A
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Taiwan
Prior art keywords
gas
port
liquid
tank
heater
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TW100136932A
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Chinese (zh)
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TWI456136B (en
Inventor
Chang-Hsien Tai
Jr-Ming Miao
Lung-Ming Fu
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Univ Nat Pingtung Sci & Tech
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Priority to TW100136932A priority Critical patent/TWI456136B/en
Priority to US13/611,647 priority patent/US20130091893A1/en
Publication of TW201315923A publication Critical patent/TW201315923A/en
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Publication of TWI456136B publication Critical patent/TWI456136B/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022Hydrocarbons, e.g. natural gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0027Oxides of carbon, e.g. CO2
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00Processes or apparatus using other separation and/or other processing means
    • F25J2205/90Mixing of components
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00Processes characterised by the type or other details of the feed stream
    • F25J2210/04Mixing or blending of fluids with the feed stream
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/30Compression of the feed stream
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2235/00Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/02Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams using a pump in general or hydrostatic pressure increase
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2240/00Processes or apparatus involving steps for expanding of process streams
    • F25J2240/40Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Accessories For Mixers (AREA)

Abstract

A gas liquefaction apparatus includes a spraying trough, a pump, a heater, a separating assembly, a radiator, a controlling-throttle assembly, and a storage trough. The spraying trough has a mixing chamber having a plurality of nozzles. The spraying trough has a gas-inlet and a mixture-outlet, with the gas-inlet and the mixture-outlet are communicated with the mixing chamber. The pump is connected to the mixture-outlet of the spraying trough. The heater is connected to the pump. The separating assembly includes a trough and heating member. The trough has a liquid-inlet and a gas-outlet, with the liquid-inlet being connected to the heater. The heating member is mounted on the trough. The radiator is connected to the gad-outlet of the trough and the controlling-throttle assembly. The storage trough is connected to the controlling-throttle assembly.

Description

氣體液化裝置Gas liquefaction device

本發明係關於一種氣體液化裝置,尤其是一種可減少能源損耗之氣體液化裝置。The present invention relates to a gas liquefaction apparatus, and more particularly to a gas liquefaction apparatus capable of reducing energy loss.

一般而言,由於LNG[液化天然氣]或是一些工業用的特殊氣體[例如:NH3或CO2]等物質,在氣態時相當不穩定且佔體積,因此,為了提升安全性,唯有將其轉換為液態,方可安心的貯存及運送。In general, because LNG [liquefied natural gas] or some special gases for industrial use [such as NH 3 or CO 2 ] are quite unstable and occupy a volume in the gaseous state, in order to improve safety, only It is converted to a liquid state for safe storage and transportation.

舉例而言,請參照第1圖所示,揭示一種習知氣體液化裝置9,主要係由一壓縮器91、一冷卻器92及一渦輪機93依序利用管路互相連接所構成。該習知氣體液化裝置9於實際使用時,以二氧化碳[CO2]為例進行說明,係先將常溫常壓[溫度約為300 K,壓力約為1 atm]之氣態CO2(g)導入該壓縮器91內,以將其轉變為高溫高壓之氣態CO2(g)[溫度約為800 K,壓力約為20 atm];接著,該高溫高壓之氣態CO2(g)係流入該冷卻器92內定壓降溫後,再流經通過該渦輪機93膨脹降壓,即可獲得低溫低壓之液態CO2(l)加以貯存以供使用。For example, referring to Fig. 1, a conventional gas liquefaction device 9 is disclosed, which is mainly composed of a compressor 91, a cooler 92 and a turbine 93 which are connected to each other by a pipeline. The gas liquefaction device 9 of the prior art is described by taking carbon dioxide [CO 2 ] as an example, and first introduces a gaseous CO 2 (g) at normal temperature and normal pressure [temperature of about 300 K, pressure of about 1 atm]. The compressor 91 converts it into a high temperature and high pressure gaseous CO 2 (g) [temperature is about 800 K, pressure is about 20 atm]; then, the high temperature and high pressure gaseous CO 2 (g) flows into the cooling. After the constant pressure is lowered in the device 92, the flow is again expanded and depressurized by the turbine 93, and the low-temperature low-pressure liquid CO 2 (l) is obtained for storage.

然而,以氣態物質之鍵結強度而言,該壓縮器91必須耗費相當大量之能源,方可將常溫常壓之氣態物質壓縮成高溫高壓之氣態物質,因此,導致上述習知氣體液化裝置9相當不經濟實惠,無法滿足現代所倡導之節能減碳的需求,故仍有進一步加以改良之必要。However, in terms of the bonding strength of the gaseous substance, the compressor 91 must consume a considerable amount of energy to compress the gaseous substance at normal temperature and normal pressure into a gaseous substance of high temperature and high pressure, thus causing the above-mentioned conventional gas liquefaction device 9 It is quite uneconomical and cannot meet the energy-saving and carbon-reduction requirements advocated by Hyundai, so there is still a need for further improvement.

本發明目的乃解決習知技術之缺點,以提供一種氣體液化裝置,主要係先將常壓低溫之氣態物質以噴灑方式與一吸收劑混合形成一液態混合物質,且該液態混合物質可以被輕易的加壓加熱至臨界點,藉以達到節省能源之目的者。The object of the present invention is to solve the shortcomings of the prior art to provide a gas liquefaction device, which mainly comprises mixing a gaseous substance at a normal pressure and a low temperature in a spray manner with an absorbent to form a liquid mixture, and the liquid mixture can be easily The pressure is heated to a critical point to achieve energy saving purposes.

為達到前述發明目的,本發明所運用之技術內容包含有:In order to achieve the foregoing object, the technical content of the present invention includes:

一種氣體液化裝置,係包含:一噴灑式混合槽,具有一混合空間,該混合空間內設有數個噴嘴,且該噴灑式混合槽係設有一氣體輸入口及一混合液輸出口,該氣體輸入口及混合液輸出口皆與該混合空間相連通;一泵浦,連接該混合液輸出口;一加熱器,連接該泵浦;一分離組件,包含一槽體及一加熱元件,該槽體具有一液體導入口及一氣體導出口,該液體導入口係連接該加熱器,該加熱元件係設置於該槽體;一排熱器,連接該槽體之氣體導出口;一控制節流組件,連接該排熱器;及一貯液槽,連接該控制節流組件。A gas liquefaction device comprises: a spray mixing tank having a mixing space, wherein the mixing space is provided with a plurality of nozzles, and the spray mixing tank is provided with a gas input port and a mixed liquid output port, the gas input The port and the mixed liquid outlet are connected to the mixing space; a pump is connected to the mixed liquid outlet; a heater is connected to the pump; and a separating component comprises a tank and a heating element, the tank Having a liquid inlet and a gas outlet, the liquid inlet is connected to the heater, the heating element is disposed in the tank; a heat exhauster connecting the gas outlet of the tank; a control throttling assembly , connecting the heat exchanger; and a liquid storage tank connected to the control throttle assembly.

本發明氣體液化裝置,該加熱器可以連接該排熱器。藉此,該排熱器可以與該加熱器共同構成熱交換組件,以節省該加熱器所需耗費之能源。In the gas liquefaction device of the present invention, the heater can be connected to the heat eliminator. Thereby, the heat exchanger can form a heat exchange component together with the heater to save energy required for the heater.

本發明氣體液化裝置,該控制節流組件可以包含一控制閥及一節流閥,該控制閥係設置於該排熱器及節流閥之間,且該節流閥連接該貯液槽。藉此,該控制閥係可用以控制流量,以提升液化作業之安全性,該節流閥則可用以進行等焓過程,以順利獲得低壓低溫之液態物質。In the gas liquefaction device of the present invention, the control throttle assembly may include a control valve and a throttle valve, the control valve is disposed between the heat exhaustor and the throttle valve, and the throttle valve is connected to the liquid storage tank. Thereby, the control valve can be used to control the flow rate to improve the safety of the liquefaction operation, and the throttle valve can be used for the isothermal process to smoothly obtain the low-pressure and low-temperature liquid substance.

本發明氣體液化裝置,該噴灑式混合槽可以設有一注入口,該槽體可以設有一液體回流口,該液體回流口係藉由管路連接於該注入口。藉此,於該槽體內之液體可以流回該混合空間內再使用。In the gas liquefaction device of the present invention, the spray mixing tank may be provided with an injection port, and the tank body may be provided with a liquid return port, and the liquid return port is connected to the injection port by a pipeline. Thereby, the liquid in the tank can be returned to the mixing space for reuse.

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」,約指300 K者,係屬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" of the present invention, which is referred to as 300 K, is understood by those skilled in the art; the "high temperature" as described below in the present invention means that the temperature is higher than the normal temperature of the crucible; The term "low temperature" as used below refers to a temperature below the normal temperature of the crucible.

本發明以下所述之「常壓」,約指1大氣壓者,係屬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。The "normal pressure" described below in the present invention, which refers to about 1 atmosphere, is understood by those skilled in the art; the "high pressure" as described below in the present invention means that the pressure is higher than that of the normal pressure.

請參照第2圖所示,本發明較佳實施例之氣體液化裝置,係包含一噴灑式混合槽1、一泵浦2、一加熱器3、一分離組件4、一排熱器5、一控制節流組件6及一貯液槽7,該泵浦2係連接該噴灑式混合槽1及加熱器3,該分離組件4係連接該加熱器3及排熱器5,該控制節流組件6則連接該排熱器5及貯液槽7。Referring to FIG. 2, a gas liquefaction apparatus according to a preferred embodiment of the present invention comprises a spray mixing tank 1, a pump 2, a heater 3, a separation assembly 4, a heat exhaustor 5, and a heat exchanger. The throttle unit 6 and a liquid storage tank 7 are connected, the pump 2 is connected to the spray mixing tank 1 and the heater 3, and the separation unit 4 is connected to the heater 3 and the heat radiator 5, and the control throttle unit 6 connects the heat exchanger 5 and the liquid storage tank 7.

該噴灑式混合槽1係具有一混合空間11,該混合空間11內可容置一吸收劑(L),且該混合空間11內設有數個噴嘴12,該噴嘴12係可用以朝該混合空間11內噴出該吸收劑(L),以增加氣體與該吸收劑(L)之混合效率;其中,該吸收劑(L)係為可以與氣體互相混合形成二元溶液之液體。在本實施例中,該噴灑式混合槽1另設有一氣體輸入口13及一混合液輸出口14,該氣體輸入口13及混合液輸出口14皆連通於該混合空間11。藉此,LNG、NH3或CO2等欲液化之常壓低溫的氣體[以下稱〝第一氣態物質〞]可以經由該氣體輸入口13被導入該噴灑式混合槽1,並利用該數個噴嘴12以噴灑方式將該吸收劑(L)與該〝第一氣態物質〞相互混合並沉澱進入該混合空間11之底部,亦即噴灑之作用在於使該〝第一氣態物質〞可以快速的與該吸收劑(L)互相混合成常壓低溫之混合物[以下稱〝第一混合物〞]後,再藉由該混合液輸出口14將該〝第一混合物〞導出。再者,該噴灑式混合槽1還可以設有一注入口15,該注入口15係連通於該混合空間11。The spray mixing tank 1 has a mixing space 11 in which an absorbent (L) can be accommodated, and the mixing space 11 is provided with a plurality of nozzles 12, which can be used to face the mixing space. The absorbent (L) is sprayed in 11 to increase the mixing efficiency of the gas and the absorbent (L); wherein the absorbent (L) is a liquid which can be mixed with a gas to form a binary solution. In the embodiment, the spray mixing tank 1 is further provided with a gas input port 13 and a mixed liquid output port 14 , and the gas input port 13 and the mixed liquid output port 14 are both connected to the mixing space 11 . Thereby, a normal-pressure low-temperature gas (hereinafter referred to as a first gaseous substance 〞) to be liquefied such as LNG, NH 3 or CO 2 can be introduced into the spray mixing tank 1 through the gas inlet port 13 and utilized. The nozzle 12 sprays the absorbent (L) and the first gaseous substance 〞 into each other and precipitates into the bottom of the mixing space 11, that is, the spraying function is to make the first gaseous substance 快速 quickly The absorbent (L) is mixed with each other to form a mixture of a normal pressure and a low temperature (hereinafter referred to as a first mixture), and then the first mixture of the crucible is discharged by the mixed liquid outlet 14. Furthermore, the spray mixing tank 1 can also be provided with an injection port 15 which is in communication with the mixing space 11.

該泵浦2係連接該噴灑式混合槽1,用以壓縮該〝第一混合物〞,以獲得高壓低溫之混合物[以下稱〝第二混合物〞];換言之,該泵浦2僅用以提高該〝第一混合物〞之壓力,而使該〝第一混合物〞維持原有之溫度;值得注意的是,由於採用液態加壓方式,係相較於典型之氣態壓縮更為節省能源。在本實施例中,該泵浦2係連接於該噴灑式混合槽1之混合液輸出口14。The pump 2 is connected to the spray mixing tank 1 for compressing the first mixture enthalpy to obtain a mixture of high pressure and low temperature [hereinafter referred to as a second mixture 〞]; in other words, the pump 2 is only used to increase the The pressure of the first mixture is maintained such that the first mixture of the crucible maintains its original temperature; it is worth noting that the liquid pressurization mode is more energy efficient than typical gaseous compression. In the present embodiment, the pump 2 is connected to the mixed liquid output port 14 of the spray mixing tank 1.

該加熱器3係用以將該〝第二混合物〞加熱至臨界點[critical],以獲得高壓高溫之混合物[以下稱〝最終混合物(M)〞]。The heater 3 is used to heat the crucible second mixture crucible to a critical point [critical] to obtain a mixture of high pressure and high temperature [hereinafter referred to as "final mixture (M) crucible].

該分離組件4係包含一槽體41及一加熱元件42,該槽體41具有一容室411,該加熱元件42係設置於該槽體41之適當位置,用以加熱該槽體41;在本實施例中,該加熱元件42係選擇設置於該容室411內。藉此,當該〝最終混合物(M)〞可流入該槽體41之容室411,即可利用該加熱元件42進一步加熱該〝最終混合物(M)〞,以便利用其沸點不同之特性,令其可自動分離出高壓高溫之氣體[以下稱〝第二氣態物質〞]。再者,本實施例之分離組件4另設有一液體導入口43及一氣體導出口44,該液體導入口43及氣體導出口44皆與該容室411相連通;其中,該液體導入口43係連接該加熱器3,以使該〝最終混合物(M)〞可以被導入該容室411內。該槽體41還可以設有一液體回流口45,該液體回流口45係連通於該容室411,且該液體回流口45可以利用管路連接該注入口15;藉此,該容室411內之〝最終混合物(M)〞可以經由該液體回流口45及注入口15流回該混合空間11內。The separation unit 4 includes a tank body 41 and a heating element 42. The tank body 41 has a chamber 411. The heating element 42 is disposed at an appropriate position of the tank body 41 for heating the tank body 41. In this embodiment, the heating element 42 is selectively disposed in the chamber 411. Thereby, when the crucible final mixture (M) is allowed to flow into the chamber 411 of the tank body 41, the crucible final mixture (M) crucible can be further heated by the heating element 42 to utilize the different boiling point characteristics. It can automatically separate high-pressure and high-temperature gas [hereinafter referred to as the second gaseous substance 〞]. Furthermore, the separation assembly 4 of the present embodiment is further provided with a liquid introduction port 43 and a gas outlet port 44, and the liquid introduction port 43 and the gas outlet port 44 are connected to the chamber 411; wherein the liquid introduction port 43 The heater 3 is connected such that the crucible final mixture (M) can be introduced into the chamber 411. The tank body 41 may further be provided with a liquid return port 45, the liquid return port 45 is connected to the chamber 411, and the liquid return port 45 may be connected to the injection port 15 by a pipeline; thereby, the chamber 411 is inside The final mixture (M) can then flow back into the mixing space 11 via the liquid return port 45 and the injection port 15.

該排熱器5係連接該分離組件4,用以排放該〝第二氣態物質〞所具有之熱量[Q],令其適當降溫後轉變為〝第三氣態物質〞。更詳言之,在本實施例中,該排熱器5係連接該槽體41之氣體導出口44,且排熱器5可以連接該加熱器3;藉此,該排熱器5可以將該熱量[Q]導入該加熱器3,使該加熱器3可以利用該熱量[Q]來加熱該〝第二混合物〞,進而可藉由該加熱器3及排熱器5所共同構成熱交換組件來節省該加熱器3所需耗費之能源。The heat exchanger 5 is connected to the separation component 4 for discharging the heat [Q] of the second gaseous substance ,, and is appropriately cooled to be converted into the third gaseous substance 〞. More specifically, in the present embodiment, the heat exchanger 5 is connected to the gas outlet 44 of the tank 41, and the heat exchanger 5 can be connected to the heater 3; thereby, the heat exchanger 5 can The heat [Q] is introduced into the heater 3, so that the heater 3 can heat the second mixture enthalpy by using the heat [Q], and the heat exchange can be formed by the heater 3 and the heat exhaustor 5 The components are used to save the energy required for the heater 3.

該控制節流組件6係可使該〝第三氣態物質〞在流動的過程中保持一定之流量,並可用以使該〝第三氣態物質〞降壓降溫,使該〝第三氣態物質〞轉變為低壓低溫之液態物質。更詳言之,在本實施例中,該控制節流組件6係包含一控制閥61及一節流閥62,該控制閥61係設置於該排熱器5與該節流閥62之間,使流經通過該排熱器5之〝第三氣態物質〞預先通過該控制閥61後再通過該節流閥62。其中,該控制閥61係可用以控制該〝第三氣態物質〞之流量,以提升液化作業之安全性;該節流閥62則可用以進行等焓過程,令該〝第三氣態物質〞降壓降溫,以轉變為低壓低溫之液態物質。The control throttling component 6 is configured to maintain a certain flow rate of the third gaseous substance in the process of flowing, and can be used to lower the temperature of the third gaseous substance, and to transform the third gaseous substance. It is a liquid substance with low pressure and low temperature. In more detail, in the present embodiment, the control throttle unit 6 includes a control valve 61 and a throttle valve 62. The control valve 61 is disposed between the heat exchanger 5 and the throttle valve 62. The third gaseous substance 流 passing through the heat exhauster 5 is passed through the control valve 61 before passing through the throttle valve 62. Wherein, the control valve 61 can be used to control the flow rate of the third gaseous substance , to improve the safety of the liquefaction operation; the throttle valve 62 can be used to perform an isotropic process to reduce the third gaseous substance. The pressure is lowered to convert into a low-pressure, low-temperature liquid substance.

該貯液槽7係用以貯存該低壓低溫之液態物質。在本實施例中,該貯液槽7係連接該節流閥62,用以接收來自該節流閥62所輸送之液態物質。The sump 7 is for storing the low-pressure low-temperature liquid substance. In the present embodiment, the sump 7 is connected to the throttle valve 62 for receiving liquid substance delivered from the throttle valve 62.

請再參照第2圖所示,本發明氣體液化裝置於使用時,係以LNG[液化天然氣]為例進行說明。在該混合空間11內已注入該吸收劑(L)之前提下,首先,將常壓低溫之LNG(g)[第一氣態物質]經由該氣體輸入口13導入該噴灑式混合槽1內,並透過該些噴嘴12將該吸收劑(L)以噴灑方式與LNG(g)混合而注入該混合空間11內,使其形成為該〝第一混合物〞。該〝第一混合物〞係經由該混合液輸出口14流經該泵浦2被加壓,以及流經該加熱器3被加熱,令該〝第一混合物〞先轉變為該〝第二混合物〞後再轉變為該〝最終混合物(M)〞,且該〝最終混合物(M)〞係經由該液體導入口43流入該槽體41之容室411。Referring to Fig. 2 again, the gas liquefaction apparatus of the present invention will be described by taking LNG [liquefied natural gas] as an example. Before the injecting agent (L) is injected into the mixing space 11, first, a normal-pressure low-temperature LNG (g) [first gaseous substance] is introduced into the spray mixing tank 1 through the gas inlet port 13, The absorbent (L) is sprayed into the mixing space 11 by spraying with the LNG (g) through the nozzles 12 to form the first mixture enthalpy. The first mixture of the crucible is pressurized via the mixed liquid outlet port 14 through the pump 2, and is heated by the heater 3 to cause the first mixture of the crucible to be first converted into the second mixture of the crucible. Thereafter, the final mixture (M) is converted to the crucible, and the crucible final mixture (M) is introduced into the chamber 411 of the tank 41 through the liquid introduction port 43.

接著,該加熱元件42係加熱該〝最終混合物(M)〞,以便生成高壓高溫之LNG(g)[第二氣態物質],且該〝第二氣態物質〞係經由該氣體導出口44被導向該排熱器5排放熱量[Q]後降溫為高壓之LNG(g)[第三氣態物質]。藉此,該〝第三氣態物質〞係朝該控制節流組件6流動,並經由等焓過程降壓降溫後生成低壓低溫之液態物質,最後再流入該貯液槽7內貯存以利運送。Next, the heating element 42 heats the crucible final mixture (M) to generate a high pressure and high temperature LNG (g) [second gaseous substance], and the crucible second gaseous substance is guided through the gas outlet 44 The heat exchanger 5 discharges heat [Q] and then cools to a high pressure LNG (g) [third gaseous substance]. Thereby, the third gaseous substance lanthanum flows toward the control throttling assembly 6, and is cooled down by an isobaric process to generate a low-pressure and low-temperature liquid substance, and finally flows into the sump 7 for storage for transportation.

本發明氣體液化裝置的主要技術特徵在於:藉由噴灑方式將欲液化之氣態物質與該吸收劑(L)混合,以獲得常壓低溫之〝混合液態物質〞,且該常壓低溫之〝混合液態物質〞的鍵結強度係相較弱於氣態物質之鍵結強度,因此,將該常壓低溫之〝混合液態物質〞加壓加熱至臨界點相當節能;況且,由於將該臨界點之〝混合液態物質〞加熱並利用沸點不同而分離出高壓高溫之氣態物質[第二氣態物質]亦僅需花費該加熱元件42少許之能源。藉此,本發明可以輕易的將氣態物質轉變為液態物質加以貯存及運送,以有效達到節省能源之功效。The main technical feature of the gas liquefaction device of the present invention is that the gaseous substance to be liquefied is mixed with the absorbent (L) by spraying to obtain a mixed liquid substance 常 at normal pressure and low temperature, and the atmospheric pressure is mixed at a low temperature. The bonding strength of the liquid substance 较 is weaker than the bonding strength of the gaseous substance. Therefore, it is quite energy-saving to pressurize the atmospheric pressure low-temperature mixed liquid substance 〞 under pressure to the critical point; moreover, due to the critical point The mixed liquid substance 〞 heating and separating the high-pressure high-temperature gaseous substance [second gaseous substance] by using different boiling points also requires only a small amount of energy of the heating element 42. Thereby, the invention can easily convert the gaseous substance into a liquid substance for storage and transportation, so as to effectively achieve the energy-saving effect.

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.

[本發明][this invention]

1...噴灑式混合槽1. . . Spray mixing tank

11...混合空間11. . . Mixed space

12...噴嘴12. . . nozzle

13...氣體輸入口13. . . Gas inlet

14...混合液輸出口14. . . Mixed liquid outlet

15...注入口15. . . Note entry

2...泵浦2. . . Pump

3...加熱器3. . . Heater

4...分離組件4. . . Separation component

41...槽體41. . . Slot

411...容室411. . . Room

42...加熱元件42. . . Heating element

43...液體導入口43. . . Liquid inlet

44...氣體導出口44. . . Gas outlet

45...液體回流口45. . . Liquid return port

5...排熱器5. . . Heat exchanger

6...控制節流組件6. . . Control throttling component

61...控制閥61. . . Control valve

62...節流閥62. . . Throttle valve

7...貯液槽7. . . Sump

L...吸收劑L. . . Absorbent

M...最終混合物M. . . Final mixture

Q...熱量Q. . . Heat

LNG...液化天然氣LNG. . . liquified natural gas

[習知][知知]

9...氣體液化裝置9. . . Gas liquefaction device

91...壓縮器91. . . compressor

92...冷卻器92. . . Cooler

93...渦輪機93. . . Turbine

第1圖:習知氣體液化裝置之架構圖。Figure 1: Schematic diagram of a conventional gas liquefaction device.

第2圖:本發明較佳實施例之氣體液化裝置的架構圖。Figure 2 is a block diagram of a gas liquefaction apparatus in accordance with a preferred embodiment of the present invention.

1...噴灑式混合槽1. . . Spray mixing tank

11...混合空間11. . . Mixed space

12...噴嘴12. . . nozzle

13...氣體輸入口13. . . Gas inlet

14...混合液輸出口14. . . Mixed liquid outlet

15...注入口15. . . Note entry

2...泵浦2. . . Pump

3...加熱器3. . . Heater

4...分離組件4. . . Separation component

41...槽體41. . . Slot

411...容室411. . . Room

42...加熱元件42. . . Heating element

43...液體導入口43. . . Liquid inlet

44...氣體導出口44. . . Gas outlet

45...液體回流口45. . . Liquid return port

5...排熱器5. . . Heat exchanger

6...控制節流組件6. . . Control throttling component

61...控制閥61. . . Control valve

62...節流閥62. . . Throttle valve

7...貯液槽7. . . Sump

L...吸收劑L. . . Absorbent

M...最終混合物M. . . Final mixture

Q...熱量Q. . . Heat

LNG...液化天然氣LNG. . . liquified natural gas

Claims (4)

一種氣體液化裝置,包含:一噴灑式混合槽,具有一混合空間,該混合空間內設有數個噴嘴,且該噴灑式混合槽係設有一氣體輸入口及一混合液輸出口,該氣體輸入口及混合液輸出口皆與該混合空間相連通;一泵浦,連接該混合液輸出口;一加熱器,連接該泵浦;一分離組件,包含一槽體及一加熱元件,該槽體具有一液體導入口及一氣體導出口,該液體導入口係連接該加熱器,該加熱元件係設置於該槽體;一排熱器,連接該槽體之氣體導出口;一控制節流組件,連接該排熱器;及一貯液槽,連接該控制節流組件。A gas liquefaction device comprising: a spray mixing tank having a mixing space, wherein the mixing space is provided with a plurality of nozzles, and the spray mixing tank is provided with a gas input port and a mixed liquid output port, the gas input port And the mixed liquid outlet is connected to the mixing space; a pump is connected to the mixed liquid outlet; a heater is connected to the pump; and a separating component comprises a tank and a heating element, the tank has a liquid introduction port and a gas outlet port, the liquid introduction port is connected to the heater, the heating element is disposed in the tank body; a heat exhauster is connected to the gas outlet port of the tank body; and a throttle control assembly is Connecting the heat exchanger; and a liquid storage tank connected to the control throttle assembly. 依申請專利範圍第1項所述之氣體液化裝置,其中該加熱器連接該排熱器。A gas liquefaction apparatus according to claim 1, wherein the heater is connected to the heat exchanger. 依申請專利範圍第1或2項所述之氣體液化裝置,其中該控制節流組件包含一控制閥及一節流閥,該控制閥係設置於該排熱器及節流閥之間,且該節流閥連接該貯液槽。The gas liquefaction device according to claim 1 or 2, wherein the control throttle assembly comprises a control valve and a throttle valve, the control valve is disposed between the heat exhaustor and the throttle valve, and the control valve is disposed between the heat exchanger and the throttle valve A throttle valve is connected to the sump. 依申請專利範圍第1或2項所述之氣體液化裝置,其中該噴灑式混合槽設有一注入口,該槽體設有一液體回流口,該液體回流口係藉由管路連接於該注入口。The gas liquefaction apparatus according to claim 1 or 2, wherein the spray mixing tank is provided with an injection port, the tank body is provided with a liquid return port, and the liquid return port is connected to the injection port by a pipeline. .
TW100136932A 2011-10-12 2011-10-12 A gas liquefaction apparatus TWI456136B (en)

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US11536511B2 (en) * 2019-08-08 2022-12-27 Herbert L. Williams Method and system for liquifying a gas

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US2160077A (en) * 1935-09-18 1939-05-30 Maiuri Guido Production of liquid air, and the production of oxygen therefrom, and the liquefaction and separation of other gases
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CN112412590A (en) * 2020-11-21 2021-02-26 山东艾泰克环保科技股份有限公司 Integrated urea box for preventing urea freezing crystallization for automobile
CN112412590B (en) * 2020-11-21 2021-08-27 山东艾泰克环保科技股份有限公司 Integrated urea box for preventing urea freezing crystallization for automobile

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