EP0153271A2 - Verfahren und Vorrichtung zum Mischen einer Flüssigkeit - Google Patents

Verfahren und Vorrichtung zum Mischen einer Flüssigkeit Download PDF

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Publication number
EP0153271A2
EP0153271A2 EP85730011A EP85730011A EP0153271A2 EP 0153271 A2 EP0153271 A2 EP 0153271A2 EP 85730011 A EP85730011 A EP 85730011A EP 85730011 A EP85730011 A EP 85730011A EP 0153271 A2 EP0153271 A2 EP 0153271A2
Authority
EP
European Patent Office
Prior art keywords
liquid
tank
pressure
water
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP85730011A
Other languages
English (en)
French (fr)
Other versions
EP0153271A3 (de
Inventor
Shogo C/O Nagoya Machinery Works Yamaguchi
Eiji C/O Nagoya Machinery Works Tachi
Enichi C/O Nagoya Machinery Works Yoshikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP59014659A external-priority patent/JPS60161725A/ja
Priority claimed from JP59027701A external-priority patent/JPS60172340A/ja
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP0153271A2 publication Critical patent/EP0153271A2/de
Publication of EP0153271A3 publication Critical patent/EP0153271A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/49—Mixing systems, i.e. flow charts or diagrams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/896—Forming a predetermined ratio of the substances to be mixed characterised by the build-up of the device

Definitions

  • the present invention relates to a method and apparatus for mixing a first liquid and a second liquid in a predetermined ratio for use in manufacture of cooling beverages or a general industry.
  • Fig. 1 shows a construction of a prior art liquid mixing apparatus for use in a manufacturing process of a cooling beverage.
  • Water to be processed for the manufacture of the cooling beverage is supplied through an inlet 1 to a tank 4 for use in the evacuation of oxygen.
  • a liquid level in the tank 4 is controlled to be maintained to a predetermined level by a water control valve 2.
  • the tank 4 may be of a packed tower type, a wetted-wall column type, or a tray tower type.
  • a vacuum unit 3 is coupled to the tank 4 so that oxygen contained in the water to be processed is evacuated under vacuum.
  • the evacuated water is sent out from an outlet pipe 5 through a check valve 7 and a water pipe 8 to a water tank 10 by means of a water pump 6.
  • An inlet valve 9 serves to always maintain constant a level of the evacuated water supplied to the water tank 10.
  • a syrup supply valve 12 serves to maintain constant a level of syrup for use in the manufacture of a cooling beverage in a syrup tank 13 supplied from a supply port 11.
  • Water in the tank 10 and syrup in the tank 13 are applied with an atmospheric pressure or are pressurized by the same pressure if necessary.
  • the evacuated water is supplied from the water tank 10 through a water measuring valve 14 and a water mixing valve 15 to a mixing tank 18 having a pressure therein being maintained to an atmospheric pressure.
  • the amount of flowing into the mixing tank 18 is substantially propotional to an opening of the water measuring valve 14 since the pressure applied to the water tank 10 is maintained constant and a difference between a level of the water tank 10 and a level of the mixing tank 18 is always maintained approximately constant.
  • Syrup is supplied from the syrup tank 13 through a syrup measuring valve 16 and a syrup mixing valve 17 to the mixing tank 18.
  • the amount of flowing into the mixing tank 18 is substantially propotional to an opening of the syrup measuring valve 16 in the same manner as that of water since the pressure applied to the syrup tank 13 is maintained constant and a difference between a level of the syrup tank 13 and a level of the mixing tank 18 is always maintained approximately constant.
  • the mixed liquid in the tank 18 is sent out with pressure by a mixing pump 19 through a control valve 20 to a next process.
  • the control valve 20 is constructed to automatically control the level of the mixing tank 18 to a constant level.
  • carbon dioxide gas (CO Z ) is absorbed or mixed into the mixed liquid.
  • the mixed liquid of a constant flow rate and supplied through the control valve 20 and the carbon dioxide gas of a constant flow rate and supplied from a supply port 22 through a valve 23 are supplied to a polycarbonator 21.
  • the mixed liquid absorbs the carbon dioxide gas within a pipe 24 and flows into a carbonator tank 26 through a check valve 25.
  • the carbonator tank 26 is connected through a pressure regulating valve 28 to a gas supply port 27 through which carbon dioxide gas is supplied to the tank 26 so that a pressure within the tank 26 is maintained constant.
  • a cooling unit for the mixed liquid is installed on a way of the pipe 24 if desired, or a cooling plate is disposed in the tank so that the mixed liquid in the tank 26 can be cooled to a predetermined temperature .
  • the mixed liquid supplied in the carbonator tank 26 is a product containing a necessary amount of carbon dioxide gas absorbed under the pressurized carbon dioxide gas, and is stored below the tank 26 to send out from an outlet 29 to a next process with pressure.
  • the above liquid mixing apparatus has the following problems when two kinds of liquid are mixed:
  • Fig. 1 shows a prior art mixing apparatus
  • Fig. 2 shows a mixing apparatus showing an embodiment according to the present invention
  • Fig. 3 shows an apparatus of another embodiment according to the present invention.
  • Fig. 2 shows a liquid mixing apparatus of an embodiment according to the present invention, in which numeral 100 denotes a supply port of water to be processed which is provided with a liquid level control valve 101.
  • a change-over valve 102 is used to switch a flow way to a supply nozzle 103 for water to be processed or to a washing spray 118.
  • Numeral 104 denotes a water tank and numeral 109 denotes a liquid level controller. Water supplied from the port 100 is controlled by the liquid level controller 109 and the control valve 101 in response to the liquid level in the tank 104 to maintain the liquid level in the tank 104 constant.
  • a vacuum gauge 113, a vacuum controller 130, a waterdrop separator 114, a drain valve 115 and a vacuum unit 116 are attached to a vacuum pipe 112 connected to the tank 104 through a check valve 111.
  • the water tank 104 is evacuated by the vacuum unit 116.
  • Numeral 105 denotes a syrup supply port.
  • a liquid level control valve 106 and a change-over valve 107 are disposed on a way of a flow way from the syrup supply port 105.
  • the change-over valve 107 switches the flow way to a syrup tank 108 or a washing spray 119.
  • An amount of syrup supplied from the syrup supply port 105 is controlled by a liquid level controller 110 and the liquid level control valve 106 in accordance with the liquid level in the syrup tank 108 and the liquid level in the tank 108 is maintained constant.
  • a pipe 117 is to connect the syrup tank 108 to the atmosphere or can be connected to a pressurized gas source if desired so that the syrup tank 108 is maintained to a constant pressure.
  • the water tank 104 is coupled to a suction side or inlet of a constant volume pump 124 through a valve 120.
  • the syrup tank 108 is also coupled through a measuring valve 121, a valve 122 and a mixing nozzle 123 to the suction side of the constant volume pump 124.
  • the valves 120 and 122 are automatic control valves which open and close in synchronism the start timing and the stop timing of the constant volume tank 124.
  • a pressure gauge 125 is to measure an output pressure of the constant volume pump 124.
  • a flow meter 126 can automatically control the revolution of the pump 124 ; if necessary, to control an amount of flowing mixed liquid constant, or can be used to adjust the revolution of the pump 124.
  • Numeral 127 denotes a check valve
  • numeral 128 denotes an automatic control valve for adjusting an amount of flowing liquid
  • numeral 129 denotes an outlet of the mixed liquid.
  • the check valve 127 is to prevent the mixed liquid from flowing reversely or leaking out when the pump 124 is stopped.
  • Oxygen contained in water supplied from the supply port 100 to the water tank 104 is sufficiently evacuated in the water tank 104 maintained to a predetermined vacuum by the vacuum unit 116 and the vacuum controller 130, and the liquid level of the water is maintained constant by the liquid level controller 109 and the liquid level control valve 101.
  • syrup supplied from the supply port 105 is maintained to a constant level by the liquid level controller 110 and the liquid level control valve 106.
  • the evacuated water is sucked through the valve 120 by the constant volume pump 124.
  • the suction portion of the pump 124 is maintained to a constant pressure in a range of 0.1 to 0.2 [kg/cm ⁇ Abs] determined by the vacuum and the liquid level in the water tank 104.
  • the tank 108 flows out through the valves 121 and 122 from the nozzle 123 into water while scattering sufficiently.
  • a pressure at the nozzle 123 is a sufficiently negative pressure as compared with that in the syrup tank 108, syrup from the tank 108 can flow out into water and the amount of syrup flowing out into water can be adjusted by the measuring valve 121.
  • a pressure difference between before and after the valve 121 is substantially constant (strictly considering, it changes a little depending on an amount of flowing syrup) and is equal to a sum of a pressure difference between a pressure in the syrup tank 108 and a pressure near the mixing nozzle 123 and a liquid column pressure of syrup. The respective pressures and the liquid column pressure are maintained constant.
  • the flow rate of the mixed liquid at the suction side of the constant volume pump 124 is depending on the constant volume characteristic of the pump 124 and can be set by the revolution of the pump. Accordingly, the flow meter 126 and the control valve 128 are not necessarily required. Since the constant volume characteristic of the pump 124 is affected by a back pressure of the pump, when the back pressure changes, there are two methods for increasing accuracy of the flow rate of the mixed liquid as follows.
  • a pressure measured by the pressure gauge 125 is not used and the revolution of the pump 124 is adjusted by the flow rate measured by the flow meter 126 to make constant the flow rate of the mixed liquid.
  • This method can be also effected by automatic control.
  • the flow rate of the mixed liquid is adjusted constant by utilizing the fact that the flow rate of the mixed liquid is propotional to the revolution of the pump 124 when the opening of the control valve 128 is adjusted to maintain constant the pressure measured by the pressure gauge 125.
  • the flow rate of syrup is determined by an opening of the measuring valve 121. Accordingly, by adjusting the revolution of the pump 124 to make constant the flow rate of the mixed liquid, the flow rate of the evacuated water is determined automatically, so that water and syrup can be mixed in a predetermined ratio.
  • An exhaust pipe 131 connected to the water tank 104 is connected to an exhaust port 135 through an open and close valve 132, a flow rate adjusting valve 133 and a gas flow meter 134.
  • a gas supply port 136 is connected through a pressure reducing valve 137, a pressure adjusting valve 138, a check valve 139, a pressure adjusting meter 140 and gas ports 141 and 142 to the syrup tank 108 and the water tank 104.
  • C0 2 gas, N 2 gas or the like is supplied from the gas supply port 136 in accordance with an object and the pressure in the water tank 104 and the syrup tank 108 is maintained to a predetermined pressure.
  • the construction from the water tank 104 and the syrup tank 108 to the outlet 129 is substantially identical with in Fig. 2 except that in the embodiment of Fig. 3 a flow meter 143 and a pressure gauge 144 are disposed on the way of the flow way from the water tank 104 to the constant volume pump 124 while the valve 120 is disposed between the flow meter 143 and the pressure gauge 144.
  • Water supplied from the supply port 100 is subject to the evacuation process and the absorption process of gas in the water tank 104 maintained to a predetermined pressure by C0 2 gas, N 2 gas or the like supplied from the gas supply port 136.
  • CO 2 gas When the pressure in the water tank 104 is maintained to a predetermined pressure by CO 2 gas, water absorbs CO 2 gas and at the same time air (mainly O 2 and N 2 ) melted in water is separated.
  • N 2 gas When the pressure in the water tank 104 is maintained to a predetermined pressure by N 2 gas, water absorbs N 2 gas under an atomosphere of pressurized N z gas and at the same time oxygen O 2 in air (mainly O 2 and N 2 ) melted in water is separated.
  • N 2 or O 2 in air separated from water is exhausted from the exhaust port 135 through the exhaust pipe 131, the valves 132, 133 and gas flow meter 134 at an economical exhaust gas flow rate.
  • the gas purity of CO 2 gas or N 2 gas in the water tank 104 is maintained to a predetermined value or more.
  • the pressure in the water tank 104 and the syrup tank 108 is maintained to the identical predetermined pressure, and the liquid levels in the water tank 104 and the syrup tank 108 are maintained to the respective predetermined levels.
  • the evacuated water in the water tank 104 is sucked by the constant volume pump 124 through the measuring valve 143 and the valve 120.
  • syrup in the tank 108 flows out from the mixing nozzle 123 into flow of water through the measuring valve 121 and the valve 122.
  • the pressure near the mixing nozzle 123 is measured by the pressure gauge 144 and the revolution of the constant volume pump 124 can be changed to control the pressure near the nozzle 123 to a desired value.
  • Adjustment of the flow rate of the mixed liquid exhausted from the pump 125 and adjustment of the mixture ratio of water and syrup are made in the same manner as in the first embodiment.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
EP85730011A 1984-01-30 1985-01-28 Verfahren und Vorrichtung zum Mischen einer Flüssigkeit Withdrawn EP0153271A3 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP59014659A JPS60161725A (ja) 1984-01-30 1984-01-30 液体配合方法及び装置
JP14659/84 1984-01-30
JP27701/84 1984-02-16
JP59027701A JPS60172340A (ja) 1984-02-16 1984-02-16 液体処理配合方法及び装置

Publications (2)

Publication Number Publication Date
EP0153271A2 true EP0153271A2 (de) 1985-08-28
EP0153271A3 EP0153271A3 (de) 1987-11-11

Family

ID=26350656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85730011A Withdrawn EP0153271A3 (de) 1984-01-30 1985-01-28 Verfahren und Vorrichtung zum Mischen einer Flüssigkeit

Country Status (1)

Country Link
EP (1) EP0153271A3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112399883A (zh) * 2018-07-13 2021-02-23 先技高科技有限公司 液体混合供给装置
CN113453872A (zh) * 2018-11-12 2021-09-28 奥索冰岛有限公司 用于弹性材料的增材制造系统、方法和相应部件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1692739A1 (de) * 1951-01-28 1972-03-16 Noll Maschfab Gmbh Verfahren und Vorrichtung zum Herstellen von Getraenken
DE3148859A1 (de) * 1981-01-27 1982-08-19 Veb Kombinat Nagema, Ddr 8045 Dresden Vorrichtung zum herstellen co(pfeil abwaerts)2(pfeil abwaerts)-haltiger erfrischungsgetraenke durch zufuegen von zusaetzen
DE3213554A1 (de) * 1981-04-10 1982-12-16 Fmc Corp., Chicago, Ill. Fluessigkeits-zuteilungsvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1692739A1 (de) * 1951-01-28 1972-03-16 Noll Maschfab Gmbh Verfahren und Vorrichtung zum Herstellen von Getraenken
DE3148859A1 (de) * 1981-01-27 1982-08-19 Veb Kombinat Nagema, Ddr 8045 Dresden Vorrichtung zum herstellen co(pfeil abwaerts)2(pfeil abwaerts)-haltiger erfrischungsgetraenke durch zufuegen von zusaetzen
DE3213554A1 (de) * 1981-04-10 1982-12-16 Fmc Corp., Chicago, Ill. Fluessigkeits-zuteilungsvorrichtung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112399883A (zh) * 2018-07-13 2021-02-23 先技高科技有限公司 液体混合供给装置
CN112399883B (zh) * 2018-07-13 2022-11-22 先技高科技有限公司 液体混合供给装置
CN113453872A (zh) * 2018-11-12 2021-09-28 奥索冰岛有限公司 用于弹性材料的增材制造系统、方法和相应部件
CN113453872B (zh) * 2018-11-12 2024-05-24 奥索冰岛有限公司 用于弹性材料的增材制造系统、方法和相应部件

Also Published As

Publication number Publication date
EP0153271A3 (de) 1987-11-11

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Inventor name: TACHI, EIJIC/O NAGOYA MACHINERY WORKS

Inventor name: YAMAGUCHI, SHOGOC/O NAGOYA MACHINERY WORKS

Inventor name: YOSHIKAWA, ENICHIC/O NAGOYA MACHINERY WORKS