JPH02268801A - Method and device for separating gas and liquid - Google Patents

Abstract

PURPOSE:To easily and stably draw a high vacuum in a degasification cylinder provided with a gas-liq. separation membrane by operating an injector with a pressurized liq. supplied from a booster pump connected to a bubble separation tank in the degasifier. CONSTITUTION:A liq. to be degasified is supplied to the inside of the gas-liq. separation membrane 6 in the degasification cylinder 5, and a water supply system and an evacuating system are provided to evacuate the outside and to remove the gas dissolved in the liq. At this time, a vacuum for degasification is drawn by the injector 10, and pressurized water is supplied to the injector 10 by the booster pump 9 connected to the bubble separation tank 8. As a result, the injector communicates with the degasification cylinder 5, the gas introduced through an evacuating pipe 11 is sucked by the injector 10, and a part of the liq. is circulated and utilized as the pressurized liq. at all times.

Description

[Detailed Description of the Invention] [Industrial Application Field J] This invention is applicable to prevention of red water and corrosion prevention in water supply pipes of buildings, etc., as well as prevention of corrosion occurring in heat exchangers of boilers, refrigerators, etc. This invention relates to a degassing method and device for preventing oxidation in alcoholic beverages and drinking water.

[Conventional technology]

Conventionally, as a method for degassing liquids, a pump is used to guide the gas to a degassing cylinder with a built-in gas-liquid separation membrane, and a vacuum pump is used to discharge the separated gas out of the plane for degassing the degassing device. Ta.

In bottling and canning of alcoholic beverages and other beverages, the container and the covering within the container were heated prior to sealing in order to reduce corrosive effects within the liquid and extend shelf life. However, in this method, since heat is applied to the organic matter, there are problems such as changes in taste, aroma, and gloss, and destruction of vitamins.

[Problems to be solved by the invention] As mentioned above, the liquid supply pump and the vacuum pump have been operated in conjunction with each other, but the first problem is that the vacuum pump is expensive because it requires a high degree of vacuum. Another problem is that water vapor easily gets mixed into the vacuum pump, requiring frequent maintenance.Secondly, in order to maintain a constant dissolved gas removal rate, the vacuum pump needs to be adjusted in proportion to changes in the amount of water. It is necessary to continuously change the amount of suction produced by controlling the amount of suction produced. To do this automatically, complicated control is required, resulting in larger and more expensive equipment and maintenance. This means that this will lead to complications.

[Means for Solving the Problems J] In order to solve the above-mentioned problems, the present invention uses an insecter in the vacuum generating section for degassing in a deaerator using a gas-liquid separation membrane, and a part of the replacement fluid is transferred to the insector. A gas-liquid separation method characterized in that the liquid is used as a pressure liquid of ,
On the other hand, we proposed a gas-liquid separation device that is used as a pressure liquid to the insecter and constantly circulates a part of the liquid, and also uses a gas-liquid separation membrane for deaeration of alcoholic beverages and drinking water. According to the present invention, by using an insector in the vacuum generator section, a high degree of vacuum can be easily and stably generated, Since the concentration of dissolved gas in the liquid is very small, the amount of water required for power is also small, and there is no problem even if the gas to be sucked contains water vapor, so controlling the amount of liquid supplied is All you have to do is adjust the rotation speed of the volume control valve or the liquid supply pump. At this time, even if the amount of liquid supplied to the decylinder changes, the pressure in the injector remains constant due to the pressure regulating valve.

Even if the amount of dissolved gas removed changes as the amount of liquid supplied changes, the removal rate will not be affected because the insecter has sufficient margin.

[Example J Figure 1 shows the method of the present invention, in which the liquid is injected into the infusion tube 1.
is led to the liquid supply pump 2 via.

After being pressurized, it is branched into two branches, one of which is guided to the decylinder 3 to remove dissolved gas and sent out of the apparatus, and the other enters the injector 4.

The gas flowing from the exhaust pipe 5 leading to the decylinder 3 is mixed with the replacement fluid and enters the exhaust device 6, where the gas is discharged outside the pipe and then returned to the liquid supply pipe 1.

Fig. 2 shows an example of an actual gas-liquid separation device, in which liquid is introduced into a liquid supply pipe 11, the pressure is increased by an infusion pump 12, and the gas mixed in the liquid is removed from the pipe by an exhaust device 13. Exhaust to.

The fluid is then split into two, one of which is supplied to the pressure regulating valve 14.
The liquid is adjusted to a constant pressure by the strainer 15, filtered by the strainer 15, and then passed through the magnetic treatment device 16.
This degassing 1'1i17 removes dissolved gas in the liquid and sends it out of the apparatus.

The other liquid is regulated to a constant pressure by the pressure regulating valve 18, and then guided to the insecter 19 as a power liquid. Due to the vacuum generated by this insector 19,
The separated gas in the decylinder 17 is sucked through the check valve 20, and the gas that has entered is exhausted out of the pipe by the exhaust device 21, and then returns to the liquid supply pipe 11 through the check valve 22. In this case, by adjusting the liquid supply control valve 23, the processing flow rate can be easily changed while keeping the dissolved gas removal rate constant.

[Effects of the Invention] By employing the above-mentioned method and device, the device of the present invention can be made small and low-cost, and because of its simple structure, there are fewer breakdowns and maintenance is easy. Its utility value is remarkable.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the method of this invention. FIG. 2 is a schematic diagram of the actual device. In the figure, ]7 liquid supply pump de-cylinder Insecta No. figure and No. figure Procedural amendment (voluntary) March 1990 ■ 2゜ 3゜ Yoshi, Commissioner of the Patent Office 1) Takeshi Moon Display of incidents 1999 Patent Application No. 92057 Name of the invention Gas-liquid separation method and device person who makes corrections Relationship to the case Patent applicant Name Suido Kiko Co., Ltd.

Claims (3)

[Claims] (1) A gas-liquid separation method characterized in that in a deaerator using a gas-liquid separation membrane, an injector is used as a vacuum generating section for deaeration, and a part of the liquid to be applied is used as pressure liquid for the injector. (2) One liquid supply pump is used as a circulation pump, and the liquid is branched into two on the downstream side of this liquid supply pump, one is transferred to the gas-liquid separator, and the other is used as pressure liquid to the injector, and is constantly A gas-liquid separation device characterized by circulating a part of the liquid. (3) A method and device for separating gas and liquid using a gas-liquid separation membrane using an injector in deaeration of alcoholic beverages and drinking water.