JPH0768155A - Excess gas separation-type gas-liquid pressure reactor - Google Patents

Abstract

PURPOSE:To easily and surely send even a gas soln. under pressure without using a pump. CONSTITUTION:A pressurized or high-speed current consisting of a gas-liq. mixture flows down stepwise in a passage 12 alternately at a high speed and at a low speed, and a gas separation passage 16 projecting upward and branched from the main passage is formed on the downstream side of the passage 12. Sensors 22 and 24 for detecting the level of a liq. introduced into the passage 16 are mounted at a specified position of the passage 16. A throttle 28 and a solenoid valve 30 to be opened and closed by the detection signal from the sensors 22 and 24 are provided on the tip of the passage 16, and a throttle nozzle 20 is furnished in the main passage on the downstream side of a branch point 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surplus gas separation type gas-liquid pressurizing reactor for reacting a gas and a liquid under pressure or supplying a dissolved gas solution in which the gas is in a supersaturated state. .

[0002]

2. Description of the Related Art Conventionally, as a method of reacting a gas with a liquid or dissolving a gas in a liquid, a liquid in which a gas is desired to be dissolved is stored in a pressure tank, and a large amount of gas is sent into the liquid. The gas-liquid reaction and the dissolution of gas are carried out in the pressure tank. When the liquid in which the gas is dissolved is to be pressure-fed or sprinkled, the gas-dissolved liquid is sent to the pressure-fed pump to be pressure-fed.

[0003]

In the case of the above-mentioned conventional technique, in the conventional pressurized reaction apparatus, a pump is used when the liquid is pressure-fed to the reaction apparatus, and when the excess gas after the dissolution reaction is separated, Since it is necessary to reduce the pressure to atmospheric pressure, another pump has to be used when pumping and sprinkling liquid, which causes a problem that the device becomes complicated and large. Further, the pump used after the gas dissolution reaction has a problem that the material is limited by the property of the liquid in which the gas is dissolved and reacted, and the pump material becomes expensive or difficult to obtain.

The present invention has been made in view of the above-mentioned problems of the prior art. When the liquid in which the gas is dissolved or reacts with the gas is pressure-fed, the gas-dissolved liquid can be easily and surely used without using a pump. Alternatively, it is another object of the present invention to provide a surplus gas separation type gas-liquid pressurization reaction device that enables pressure-feeding of a treatment liquid after reaction.

[0005]

SUMMARY OF THE INVENTION The present invention is provided with a flow path that flows stepwise from top to bottom while repeating gradual movement, in which a pressurized or high-speed gas-liquid mixed flow flows. A gas separation flow channel is formed branching from the main flow channel by projecting upward to the downstream side of the channel, and a sensor for detecting the liquid level of the liquid flowing into the gas separation flow channel is attached to a predetermined position of the gas separation flow channel, Excess gas separation type gas-liquid pressurization reaction device in which a throttle and an electromagnetic valve opened and closed by a detection signal of the sensor are provided on the tip side of the gas separation channel, and a throttle nozzle is provided on the downstream side of the main channel at the branch point. Is.

[0006]

The surplus gas separation type gas-liquid pressurization reactor of the present invention forms a flow path from top to bottom in a stepwise manner while repeating the gradual movement, and the gas-liquid mixed flow is caused to flow through this flow path to produce the above flow. In the passage, gas flows in the upper portion of the passage and liquid flows in the lower portion of the passage, and a flow having a wide contact area of gas and liquid is obtained. Then, the outlet of the flow path that gradually flows down from top to bottom while repeating gradual or rapid, or by providing a throttle downstream of the main flow path through which the gas-dissolved liquid flows, the static pressure inside the flow path is increased, and the gas-liquid reaction, It improves the dissolution efficiency. Pressurization of this portion is adjusted by a throttle nozzle provided downstream of the main flow path. Furthermore, it is difficult to divide the surplus gas and the liquid accurately at the branch point.Therefore, not only the gas but also a small amount of the liquid is set to flow into the gas separation channel side, and when the liquid flows into this channel. The liquid has a high density and therefore accumulates downward.This liquid level is detected by a sensor, and a solenoid valve installed at the end of the gas separation channel to prevent the liquid from flowing out of the gas separation channel. Open and close. At this time, the gas flows out upward from the gas separation channel, but since the throttle is provided on the outflow side, the decrease in pressurization hardly occurs.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a gas-liquid pressurization reactor for excess gas separation of the present invention will be described below with reference to the drawings. Figure 1,
FIG. 2 shows a surplus gas separation type gas-liquid pressurization reactor 1 according to a first embodiment of the present invention, which is stepped up after an inlet 10 into which a gas-liquid mixed flow pumped by a pump or the like flows. A flow path 12 is formed so as to flow downward from. A gas separation channel 16 protruding upward is formed at a branch point 14 at the end portion of the channel 12 that flows downward from above in a stepwise manner. In addition, the outlet 1 of the flow path 12 downstream of the branch point 14
A main flow path 18 through which the gas-liquid mixed flow flows is connected to 1, and a throttle nozzle 20 is provided at a base end portion of the main flow path 18. Further, the throttle 28 and the electromagnetic valve 30 are connected after the outlet 26 of the gas separation flow path 16 and the gas separation flow path 1
Capacitance type proximity sensors 22 and 24 are arranged on the side surface of 6. When a harmful gas is used, a gas treatment device (not shown), for example, an ozone treatment device, is connected to the gas discharge pipe 31 provided with the electromagnetic valve 30 to process the discharged gas.

The operation of the gas-liquid pressure mixing device of this embodiment is as follows.
First, when the gas-liquid mixed flow 15 pressurized to a predetermined pressure is flown into the flow path 12 from the inflow port 10, the gas flow 32 and the liquid flow 34 are separated inside the flow path 12. And channel 1
The inside of the flow passage 12 maintains a pressurized state by the throttle nozzle 20 at the base end of the flow passage 18 connected to the two outflow ports 11. Here, the relationship between this pressurization and the throttle nozzle 20 is
If the internal size of the flow channel 12 is sufficiently large, it is given by the following equation from Bernoulli's theorem. P = ρu ^2/2 P: pressure in the flow path within 12 [rho: density of the liquid u: flow velocity in the throttle nozzle 20

In the flow branched at the branch point 14, the liquid and the gas also flow into the gas separation channel 16 side, the liquid having a high specific gravity remains below, and the gas flows upward in the gas separation channel 16. . In the gas separation channel 16, the throttle nozzle 2 is arranged so that the liquid surface is located substantially between the sensors 22 and 24.
0 and the inner diameter of the diaphragm 28 are adjusted. Then, when the liquid level rises to the position of the sensor 24 with respect to the fluctuation of the liquid level, the sensor 22.24 is also turned on and the solenoid valve 30 is closed, as shown in FIG. As a result, the release of the gas is stopped, the gas is filled in the upper part of the gas separation channel 16, and the liquid level is lowered. Then, when the liquid level drops below the sensor 22, both the sensors 22 and 24 are turned off,
The electromagnetic valve 30 is opened, and the liquid level starts rising again in the gas separation flow path 16. In this way, the surplus gas is discharged from the gas separation channel 16 to the outside, and only the gas dissolved liquid is flow channel 1.
Pour into 8.

In the excess gas separation type gas-liquid pressurization reactor of this embodiment, a large contact area can be obtained between the gas under pressure and the liquid. This is the condition under which the dissolution is very good. Further, since the outflow port 11 is provided at a position lower than the inflow port 10 inside the flow path 12, the liquid flow 34 of the gas-liquid mixed flow easily flows downward, and the gas flow 32 flows. Road 1
2, the gas remains in the upper part of the device 2. Therefore, even if the gas ratio of the gas-liquid mixed flow flowing into the excess gas separation type gas-liquid pressure reaction device is small, the gas ratio becomes large inside the device. . As a result, the gas-liquid reaction and the gas dissolution into the liquid can be efficiently performed even with a small amount of gas. Then, the excess gas is separated in the gas separation flow channel 16 in the pressurized state, and the liquid in which the gas is dissolved is sent to the flow channel 18 in the pressurized state.

According to the excess gas separation type gas-liquid pressurization reaction apparatus of this embodiment, the liquid produced by the gas-liquid reaction can be sprinkled and pumped without a pump for sprinkling and pumping.

Here, in the excess gas separation type gas-liquid pressurization reactor of this embodiment, the gas and the liquid may be separately injected into the flow path 12. In this case, at least the gas is pressurized to a predetermined pressure and then injected. Further, the throttling nozzle 20 may be attached at a position immediately after the excess gas separation type gas-liquid pressurizing reaction device or at a downstream side of the outflow port 11. Further, the throttle nozzle 20 may have one hole as shown in FIG. 1 or may have a plurality of holes. Further, instead of the throttle nozzle 20, a pressure control valve or the like is attached to vary the pressure. You can use the one It should be noted that the setting of the flow path 12 does not necessarily require that the formation surface of the flow path 12 be horizontal and vertical, and may be inclined. Alternatively, the pipe may be meandering. Further, as long as the condition that the outlet 11 is lower than the inlet 10 is satisfied, an intermediate portion of the flow path 12 may be elevated. Further, the throttle nozzle 20 may be substituted by a throttle of a sprinkler such as a water sprinkler. Further, in FIG. 1, the gas discharge conduit 31 is connected to the throttle 28 and the solenoid valve 30.
However, the solenoid valve 30 and the throttle 28 may be arranged in this order. Further, a pressure control valve or the like may be used instead of the throttle 28.

Next, a second embodiment of the present invention is shown in FIG.
Here, the same members as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted. The surplus gas separation type gas-liquid pressurization reaction apparatus of this embodiment has a gas-liquid mixer 42 attached to the inflow port 10 of the surplus gas separation type gas-liquid pressurization reaction apparatus 1 of the first embodiment. As shown in FIG. 3, the gas-liquid mixer 42 has a venturi tubular flow passage 45 in which a throat portion 46, which is a throttle portion, is provided in the center of the mixer 42. A cylindrical gas inflow portion 47 having an inner diameter slightly larger than that of the throat portion 46 is formed on the downstream side of the venturi-shaped flow path 45, and is smoothly tapered in a downstream side of the gas inflow portion 47. A widened portion 48 is formed. The gas inflow portion 47 is formed with a gas inflow port 50 for mixing the gas into the flow path 45. The gas inlet 50 is connected to the tip of a gas inflow conduit (not shown) that guides a predetermined gas.

In the surplus gas separation type gas-liquid pressurization reactor of this embodiment, the liquid flowing from the inflow conduit 44 into the mixer 42 is accelerated at the throat portion 46 of the Venturi tubular flow path 45 and once stopped. The pressure decreases, the flow velocity slows down through the spreading portion 48, the static pressure increases again, and the gas dissolves in the liquid. Here, the gas inlet 50 is slightly downstream of the throat portion 46, and the static pressure in this portion is relatively negative, so that gas flows into the flow path 45. The gas-liquid mixed flow formed here is made to flow into the excess gas separation type gas-liquid pressurization reactor 1 similar to the first embodiment. Thereby, the gas-liquid dissolution reaction can be obtained more efficiently, and a large amount of the gas-dissolved liquid can be produced.

The sensor of the present invention may detect only the upper limit of the liquid level, and the electromagnetic valve may be closed by detecting the upper limit of the liquid level, and then the electromagnetic valve may be opened after a predetermined time. Only the lower limit of the liquid level is detected,
The solenoid valve may be opened by detecting the lower limit of the liquid level and then closed after a predetermined time. Further, it is also possible to use an electromagnetic valve that doubles as a throttle provided on the tip side of the gas separation channel and also as an electromagnetic valve.

[0016]

EFFECTS OF THE INVENTION When the excess gas separation type gas-liquid pressurization reaction device of the present invention is used, the gas and liquid or a mixed flow thereof can be pumped to the device at high efficiency and continuously in the gas-liquid reaction. Alternatively, gas-liquid dissolution can be performed. Then, water sprinkling, pressure feeding, and the like of the liquid generated by the gas-liquid reaction can be easily and reliably performed without a dedicated pump.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a surplus gas separation type gas-liquid pressurization reactor according to a first embodiment of the present invention.

FIG. 2 is a timing chart showing operations of a sensor and a solenoid valve of the excess gas separation type gas-liquid pressurization reaction device of the first embodiment.

FIG. 3 is a partially broken vertical sectional view showing a surplus gas separation type gas-liquid pressurization reaction device of a second embodiment of the present invention.

[Explanation of symbols]

 1 Excess Gas Separation Type Gas-Liquid Pressurization Reactor 12 Flow Path 14 Branch Point 16 Gas Separation Flow Path 20 Throttle Nozzle 22, 24 Sensor 28 Throttle 30 Solenoid Valve

Front page continuation (72) Inventor Masakazu Kashiwa 1-10-40 Mikunihonmachi, Yodogawa-ku, Osaka City, Osaka Prefecture Izumi Electric Co., Ltd.

Claims (2)

[Claims] 1. A flow path formed in a gradient of repeated grading, wherein a flow path in which a pressurized or high-speed gas-liquid mixed flow flows is provided, and the flow path protrudes upward in the downstream of the flow path and extends from the main flow path. A branched gas separation flow path is formed, a sensor for detecting the liquid level in the gas separation flow path is attached to a predetermined position of this gas separation flow path, and a diaphragm and a detection signal of the sensor are provided at the tip side of the gas separation flow path. And a solenoid valve that is opened and closed by the above, and a throttle nozzle is provided on the downstream side of the main flow path at the branch point. 2. The excess gas separation type gas-liquid pressurization reaction according to claim 1, wherein the sensor detects at least one of an upper limit and a lower limit of a liquid level in the gas separation channel. apparatus.