TW201810463A - Feeding device of gas-containing liquid - Google Patents

Abstract

To provide a feeding device of a gas-containing liquid which suppresses defect caused by generation of air bubbles from the gas-containing liquid immediately under a decompression part arranged on a flow channel part arranged on a downstream of a storage tank. Feeding devices 1, 101 of a gas-containing liquid GL include: a storage tank 21 for storing the gas-containing liquid GL in which a predetermined gas HG is contained and on which a first pressure P1 is applied; flow channel parts 30, 130 which flow out the gas-containing liquid with a second pressure P2 from an outflow port 30o. The flow channel parts include one or a plurality of decompression parts 31, 32 for reducing a pressure of the gas-containing liquid, an uppermost stream pipe part 34, most downstream pipe parts 36, 136, and at least one in-between decompression parts pipe part 35 which connects the decompression parts when the plurality of decompression parts exist. At least one of delay pipe parts 35 and 136 of the in-between decompression parts pipe part and the most downstream pipe parts include delay parts 35d, 136d which delay a time the gas-containing liquid reaches a downstream side decompression part 32, which is connected from a downstream side to the delay pipe parts, or the outflow port 30o.

Description

Gas-containing liquid supply device

The present technology relates to a supply device for supplying a gas-containing liquid selectively containing a predetermined gas.

In recent years, it has been known that in a large amount of hydrogen-containing water (so-called hydrogen water) which is dissolved in hydrogen, it is reduced in vivo as a hydroxyl radical that is an active oxygen. In the drinking field, hydrogen-containing water is Attention. A manufacturing apparatus for manufacturing a gas-containing liquid that selectively contains such a predetermined gas such as hydrogen-containing water has been proposed. The apparatus has various structures (see, for example, Patent Documents 1 and 2).

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese New Registration No. 3185776

[Patent Document 2] Japanese Patent Laid-Open No. 2000-447

A gas-containing liquid such as hydrogen-containing water stored in a storage tank generated in such a manufacturing apparatus is supplied to a device provided downstream of the storage tank through a flow path, and is supplied to, for example, a gas-filled liquid. To the container's filling device.

However, when the gas-containing liquid in the storage tank to which the first pressure is applied is caused to flow out of the outlet of the flow path under the second pressure with a lower pressure, When one or more decompression sections (pressure adjustment valves) are provided in the flow path to reduce the pressure applied to the liquid, a large amount of air bubbles are generated in the liquid directly below the decompression section, and the adjustment is performed on the downstream side. The pressure at the decompression part becomes difficult. In order to extract the gas from the gas-containing liquid, the gas-containing liquid in a state containing a desired amount of gas in the liquid may not be supplied to downstream equipment (filling equipment, etc.). .

This technology has been developed in view of the above-mentioned problems. Among them, it provides a method for suppressing bubbles caused by a gas-containing liquid directly below a pressure reducing section provided on a flow path section downstream of a storage tank. Adverse conditions of gas-containing liquid supply device.

An aspect for solving the above-mentioned problem is a gas-containing liquid supply device including a storage tank that stores a pressure applied to a gas-containing liquid that selectively contains a predetermined gas, and is adjusted to a first pressure. The aforementioned gas-containing liquid; and a flow path portion connected to the aforementioned storage tank, the aforementioned gas-containing liquid flowing through, and the aforementioned gas-containing liquid having a pressure lower than the second pressure of the first pressure flowing out of the outflow port; The flow path section has one or a plurality of pressure reducing sections, so that the pressure applied to the gas-containing liquid is lower on the secondary side than the primary side, and the uppermost pipe section connects the storage tank and the Between the most upstream decompression section on the most upstream side of the decompression section; the most downstream pipe section connecting between the most downstream decompression section on the most downstream side of the decompression section and the outflow port; and at least one When there are a plurality of decompression section tubes, the decompression sections are connected in order; at least one of the decompression section tubes and the most downstream section is extended. Tube portion, line comprises: a delay from the upstream side of the upstream pipe portion connected to the delay of the reduced pressure portion of the pressure side The aforementioned gas-containing liquid flowing out of the section passes through the delay pipe section to reach the delay section of the downstream pressure reducing section or the outflow port connected to the delay pipe section of the pressure reducing section from the downstream side.

In this gas-containing liquid supply device, there is one or a plurality of pressure reducing sections in the flow path section, and a delay pipe section of at least one of the pressure reducing section pipe section and the most downstream pipe section of the flow path section. With a delay section.

In this delay pipe section, by reducing the pressure in the upstream pressure reducing section connected from the upstream side to the delay pipe section, even in the upstream region of the delay pipe section directly below the upstream pressure reducing section, When a lot of bubbles are generated in the liquid, the delay tube portion includes a delay portion, so that compared with a case where no delay portion is provided, the liquid containing gas reaches the downstream pressure reducing portion or the outflow port on the downstream side. Can make most or all of the bubbles dissolved in the liquid again, and absorb the bubbles. Therefore, it is possible to alleviate the decompression difficulty at the downstream-side decompression portion connected to the delay pipe portion from the downstream side. Alternatively, a gas-containing liquid containing a desired amount of gas in the liquid may be supplied to a device (for example, a filling device) provided downstream of the delay tube portion.

The predetermined gas contained in the gas-containing liquid may be, for example, a gas such as hydrogen, argon, nitrogen, air, oxygen, ozone, carbon dioxide, chlorine, hydrogen chloride, sulfurous acid gas, nitrogen oxide, hydrogen sulfide, ammonia, or the like.

The liquid containing a predetermined gas may be water such as pure water, ultrapure water, drinking water, well water, natural water, or a beverage water stock solution, a beverage stock solution, a beer stock solution, and a sparkling wine by adding sugar and salt to the water. Alcoholic liquors such as original liquors, seawater, various culture fluids, various aqueous solutions, edible oils and fats, butter oils, margarine oils, and other liquids for drinking and eating. In addition, organic solvents such as alcohol, toluene, and acetone, and petroleum products such as gasoline and kerosene can also be mentioned.

The storage tank may be a tank containing a liquid containing a gas whose pressure is adjusted to a first pressure. Therefore, it is possible to exemplify a tank that separately stores a predetermined amount of a gas-containing liquid adjusted to the first pressure. In addition, it can also be exemplified as the storage of the temporary gas-containing liquid storage portion that receives the gas-containing liquid from the outside to the tank and makes the gas-containing liquid flow out of the tank to the flow path portion. groove. In addition, it is also possible to use a micro-bubble generating device installed inside or on the side wall of a storage tank to receive a liquid containing no gas or a gas-containing liquid having a low gas content from the outside, for example, to make the predetermined gas into a fine bubble After the liquid (or gas containing liquid) is contained and dissolved in the liquid, the gas containing liquid which increases the predetermined gas content can be supplied to a device (filling device, etc.) provided downstream of the flow path portion. It is also used as part of the storage tank for manufacturing equipment containing liquids containing gas.

The pressure reducing section also includes a member that opens and closes the valve section by moving the valve body, and reduces the pressure lower than the primary hydraulic pressure and the secondary hydraulic pressure (reducing pressure), such as a primary pressure regulating valve or a secondary pressure regulating valve (reducing pressure). In addition to pressure valves, etc., it also includes parts that cause pressure loss to make the secondary side hydraulic pressure lower than the primary side (for example, flow control valves, orifices, etc.). In addition, the decompression unit uses a detection result of a pressure detector that detects the primary or secondary hydraulic pressure of the decompression unit, and a controllable decompression unit (a primary pressure regulating valve or a secondary pressure regulating valve ( Pressure reducing valve)), so that the pressure detected by the pressure detector becomes a predetermined value. Alternatively, a pressure reducing section (a primary pressure regulating valve or a secondary pressure regulating valve (pressure reducing valve)) for manually adjusting the primary or secondary hydraulic pressure of the pressure reducing section may be used.

Further, the delay portion may be a thick tube portion having an inner diameter larger than that of the other portion and having a larger cross-sectional area of the flow path among the delay tube portions. In this thick tube section, The flow velocity of the liquid is reduced. Therefore, in this part, the time for the gas-containing liquid flowing out of the upstream pressure reducing section to reach the downstream pressure reducing section or the outflow port can be delayed. Another example is a parallel pipe section in which a gas-containing liquid flows through a plurality of parallel-flow tubes arranged in parallel to increase the cross-sectional area of the flow path. In addition, other parts may be the same as the cross-sectional area (inner diameter) of the flow path. However, the flow path extension of the flow path is intentionally lengthened by a configuration such as a U-shape, a meandering shape, or a spiral shape. In this case, by extending the flow path portion of the flow path extension portion, it is possible to delay the time when the liquid containing the gas reaches the downstream pressure reducing portion or the outflow port. Furthermore, two or more of the three thick tube portions, parallel tube portions, and flow path extension portions may be used at the same time. For example, the thick tube portion may be formed into a U-shaped, meandering, or spiral flow path extension portion. . Moreover, the same or different kind of multiple delay sections may be provided in one delay tube section.

Further, among the flow path sections, the delay pipe section of at least one of the decompression section pipe section and the most downstream pipe section includes a delay section. Therefore, the delay pipe section includes one case and a plurality of cases. When there are a plurality of delay pipe sections, the downstream-side decompression section of the upstream-side delay pipe section may also correspond to the upstream-side decompression section of the downstream-side delay pipe section.

In addition, there are a plurality of decompression sections. Therefore, when one or a plurality of decompression section pipes exist, it is preferable to treat each decompression section pipe section as a delay pipe section, that is, in each decompression section. Delay sections are respectively provided in the intermediate tube sections. Because the delay section is provided in each decompression section pipe section, the gas-containing liquid containing a large number of bubbles reaches the downstream decompression section connected to the decompression section pipe section from the downstream, and can be suppressed on each downstream side. In a situation where the decompression section cannot properly decompress.

The equipment installed on the downstream side of the outflow port of this supply device, for example For example, a filling device for filling a bubble-containing liquid into a container, or a buffer tank for filling. In addition, when a filling device is provided, a liquid-containing liquid and container filled with gas can be used by using a well-known filling device. Containers filled with gas-containing liquids include glass bottles, PET bottles, steel cans, aluminum cans, retort bags with stoppers, retort bags without stoppers, etc., as long as they correspond to the liquid or the intended Gas, suitable container can be selected.

In addition, the gas-containing liquid supply device may be a gas-containing liquid supply device in which the delay portion is a thick tube portion composed of a flow tube having a cross-sectional flow path larger than that of the delay tube portion. .

In this gas-containing liquid supply device, the delay portion is composed of a thick tube portion. Therefore, the flow rate of the gas-containing liquid flowing through the delay tube portion to which the delay portion (thick tube portion) belongs is reduced in the thick tube portion to delay the time to reach the downstream pressure reducing portion or the outflow port. Ensure the delay time and shorten the entire length of the delay tube.

In addition, the gas-containing liquid supply device described in any of the above may be a gas-containing liquid supply device in which the delay portion is a flow path extension portion that lengthens the flow path of the delay tube portion.

In this gas-containing liquid supply device, the delay portion is constituted by a flow path extension portion that lengthens the length of the flow path of the delay tube portion. Therefore, in the delay pipe section to which the delay section (flow path extension section) belongs, the time to reach the downstream pressure reducing section or the outflow port can be delayed without reducing the flow velocity of the liquid containing gas, or by continuously suppressing the decrease in the flow velocity.

Moreover, the gas-containing liquid supply device described in any of the above, as long as it is made into the predetermined gas system hydrogen, the gas-containing liquid system contains A gas-containing liquid supply device for water with hydrogen is sufficient.

When a hydrogen-containing water (so-called hydrogen water) containing hydrogen is supplied from a supply device, a device (for example, a hydrogen water filling device) provided downstream of an outflow port of this supply device is generated, and a state in which the hydrogen content is maximized is desired The following is expected for hydrogen-containing water (hydrogen water). In contrast, in this supply device, a delay section is provided in the delay pipe section. Therefore, as the pressure is reduced, the delay pipe section directly below the pressure reduction section can generate hydrogen bubbles even in a large amount of hydrogen gas in the hydrogen-containing water. The hydrogen-containing water reaches the downstream-side decompression part or outflow port on the downstream side, so that most or all of the bubbles are dissolved again in the hydrogen-containing water, and the bubbles are absorbed. In addition, it is possible to reduce the difficulty of decompressing at the downstream-side decompression portion on the downstream side of the delay pipe portion. Alternatively, a hydrogen-containing water containing a large amount of hydrogen in the liquid may be supplied to a device (a hydrogen-water filling device) provided downstream of the delay pipe portion.

WT‧‧‧ Water

GL‧‧‧ Hydrogen-containing water (liquid containing gas)

HG‧‧‧Hydrogen

P1‧‧‧tank pressure (first pressure)

P2‧‧‧ Outlet pressure (second pressure)

PM‧‧‧Intermediate pressure

1, 101‧‧‧ Hydrogen-containing water supply device (liquid supply device containing gas)

10‧‧‧Control Department

20‧‧‧Reservation Department

21‧‧‧ storage tank

21i‧‧‧ (of the tank) inlet

21o‧‧‧ (outlet of storage tank)

22‧‧‧The first pressure detector

30, 130‧‧‧flow department

30o‧‧‧ (outlet of flow path)

31‧‧‧The first decompression section (decompression section, most upstream decompression section, upstream decompression section)

32‧‧‧Second decompression section (decompression section, most downstream decompression section, downstream decompression section, upstream decompression section)

33‧‧‧Intermediate Pressure Detector

34‧‧‧The first pipe section (most upstream pipe section)

35‧‧‧ 2nd pipe section (decompression section pipe section, delay pipe section)

35d‧‧‧thick pipe extension (delay section, thick pipe section, flow path extension)

35j‧‧‧Upstream section (other parts in the delay tube section)

35k‧‧‧downstream section (other parts in the delay pipe section)

36‧‧‧ 3rd pipe section (most downstream pipe section)

136‧‧‧Third pipe section (most downstream pipe section, delay pipe section)

136d‧‧‧pipe extension (delay section, flow path extension section)

136j‧‧‧Upstream section (other parts in the delay tube section)

136k‧‧‧downstream section (other parts in delay pipe section)

FIG. 1 is an explanatory diagram schematically showing a configuration of a supply device that also serves as a hydrogen-containing water production and supplies hydrogen-containing water to a filling device according to an embodiment.

FIG. 2 is an explanatory diagram schematically showing a configuration of a supply device that is also used for the production of hydrogen-containing water and supplies hydrogen-containing water to a filling device in a modified form.

An embodiment of the present technology is shown in FIG. 1 and described with reference to an explanatory diagram showing a configuration of a hydrogen-containing water supply device. In this embodiment, the supply device 1 is used to continuously manufacture a filling device PI that supplies hydrogen-containing water GL and fills the hydrogen-containing water GL into the container LP.

The hydrogen-containing water supply device 1 includes: a storage section 20, The hydrogen water GL is in the storage tank 21; the flow path part 30 causes the hydrogen-containing water GL stored in the storage tank 21 to flow out from the outlet 30o to the filling device PI; and the control part 10 controls these storage parts 20 and the flow path part 30 of each machine.

Among them, as shown in FIG. 1, the storage section 20 is connected to the inflow port 21i provided at the lower part of the storage tank 21, and includes a water supply pump 41 for supplying water WT from the outside (containing no hydrogen), and preventing the water from the storage tank 21. Water WT counter-current check valve 42. The water WT supplied to the storage tank 21 fills the storage tank 21. Moreover, as described below, the storage tank 21 is always full of water, and the hydrogen-containing water GL corresponding to the amount of water WT injected into the storage tank 21 from the water supply pump 41 is from the outflow port provided at the upper part of the storage tank 21 21o flows out to the flow path section 30. In addition, the water supply pump 41 may use a flow rate detector provided separately to control the water supply amount (flow rate) of the water WT by the control unit 10.

The circulating water JL flows out from a circulating flow outlet 21p provided in the lower part of the storage tank 21, and the circulating water JL is supplied to the water flow inlet 26w of the micro-bubble generating device 26 through the circulating pump 24. The circulating water pressure PJ of the circulating water JL detected by the circulating pressure detector 25 is input to the control unit 10 through a signal line (not shown), and the circulating pump 24 passes through a control line (not shown). It is controlled by the control unit 10 so that the circulating water pressure PJ detected by the circulating pressure detector 25 becomes a predetermined value (for example, a gauge pressure system PJ = P1 + 0.2 MPa). In addition, the hydrogen gas HG is passed through the flow rate regulator 28 and supplied from the hydrogen gas cylinder HB to the gas inlet 26g of the micro-bubble generator 26. This flow regulator 28 is also controlled by the control unit 10 through a control line (not shown) so that the hydrogen HG supply pressure itself becomes a predetermined value. Therefore, the micro-bubble generating device 26 generates hydrogen-containing water GL containing the micro-bubbles BB of a predetermined size.

The fine bubble generating device 26 is, for example, Patent Document 2 (Japan The swirling type micro-bubble generating device disclosed in JP-A-2000-447) swirls water WT (or hydrogen-containing water GL) injected from the water inlet 26w, and simultaneously supplies hydrogen HG to its center to generate a diameter of several 10 μm in water Most of the following apparatuses for fine hydrogen bubbles BB. Therefore, the hydrogen-containing water GL containing a large number of fine bubbles BB is injected into the storage tank 21 from the circulating flow inlet 21q opened on the side of the storage tank 21.

In this way, in the storage tank 21, the water WT is supplied (without hydrogen) from the lower part of the tank 21, and at the same time, the hydrogen-containing water GL system containing most of the fine bubbles BB is circulated by the circulation pump 24 and the fine bubble generating device 26 It is injected cyclically, so after a certain period of time, a large amount of hydrogen HG is dissolved in the upper part of the storage tank 21, or at the same time, the hydrogen-containing water GL of the fine bubbles BB containing most of the hydrogen HG is normally Only the portion of the water WT supplied from the inflow inlet 21i is stored, and the hydrogen-containing water GL flows out from the outflow port 21o of the storage tank 21 to the flow path portion 30.

The flow path portion 30 is a portion from the outflow port 21o of the storage tank 21 and reaches the outflow port 30o. The flow path portion 30 includes a first tube portion connecting the outlet 21o of the storage tank 21 and the first pressure reducing portion 31 in addition to the two pressure reducing portions of the first pressure reducing portion 31 and the second pressure reducing portion 32. 34. Three pipe sections 35 connecting the second pipe section 35 between the first decompression section 31 and the second decompression section 32, and the third pipe section 36 connecting the second decompression section 32 and the outflow port 30o.

The first decompression section 31 corresponds to a decompression section, and corresponds to the most upstream decompression section located on the most upstream side among the plurality of decompression sections. The second decompression section 32 also corresponds to the decompression section, and corresponds to the most downstream decompression section on the most downstream side among the plurality of decompression sections. The first tube portion 34 corresponds to a connection. The most upstream pipe section between the storage tank and the first decompression section 31 as the most upstream decompression section. The second pipe section 35 corresponds to a decompressing section pipe section connecting the first decompressing section 31 and the second decompressing section 32. The third pipe section 36 corresponds to the most downstream pipe section connecting the second decompression section 32 and the outflow port 30o.

In addition, as described below, the second pipe portion 35 corresponds to a delay pipe portion. Therefore, the first decompression portion 31 corresponds to a connection from the upstream side to the second pipe portion 35 as a delay pipe portion. The upstream side of the decompression section. Similarly, the second decompression section 32 is equivalent to the downstream side decompression section connected from the downstream side to the second pipe section 35 as the delay pipe section.

In addition, a first pressure detector 22 is provided on the upper part of the storage tank 21, and detects the storage tank pressure (the first pressure of the water WT and the hydrogen-containing water GL) supplied from the water supply pump 41 and stored in the storage tank 21 ) P1 to notify the control unit 10 through a signal line (not shown).

The first pressure reducing unit 31 is a primary pressure regulating valve configured to maintain a constant pressure on the primary side (upstream side) by flowing out the hydrogen-containing water GL to the second pipe portion 35 on the secondary side (downstream side). The control unit 10 controls the opening and closing of the valve in the first decompression unit 31 so that the primary side of the first decompression unit 31, that is, the content in the storage tank 21 detected by the first pressure detector 22 is included. The storage tank pressure P1 of the hydrogen water GL is maintained at a predetermined value (for example, at the gauge pressure P1 = 0.4 MPa). Therefore, by controlling the flow of the first decompression section 31 by the control section 10, the pressure of the hydrogen-containing water GL in the storage tank 21 is maintained at the storage tank pressure P1, and the amount is equal to the water supplied by the self-supplying water pump 41. Hydrogen-containing water GL with the same amount of WT flows from the outlet 21o.

Among the second pipe portion 35, an intermediate pressure detector 33 is provided at the downstream portion 35k, and the hydrogen-containing water flowing through the downstream portion 35k (the second pipe portion 35) is detected. The intermediate pressure PM of GL is notified to the control unit 10 through a signal line (not shown).

The second decompression section 32 also pressures the hydrogen-containing water GL in the second pipe section 35 on the primary side (upstream side) by flowing the hydrogen-containing water GL to the third pipe section 36 on the secondary side (downstream side). A pressure regulating valve maintained at a certain configuration. The control unit 10 controls the opening and closing of the valve in the second decompression unit 32 so that the primary side of the second decompression unit 32, that is, the intermediate pressure PM of the hydrogen-containing water GL in the second pipe unit 35 is maintained at Predetermined value (for example, gauge pressure PM = 0.2MPa). Therefore, by controlling the flow rate of the second decompression section 32 by the control section 10, the pressure of the hydrogen-containing water GL in the second pipe section 35 is maintained at an intermediate pressure PM, and the hydrogen content flowing into the second pipe section 35 is maintained. The same amount of water GL, that is, the same amount of hydrogen-containing water GL as that flowing out from the outflow port 21o, flows out to the third pipe portion 36.

Then, in the first decompression section 31, a decompression of P1-PM (for example, P1-PM = 0.4-0.2 = 0.2 MPa) is generated.

The outlet 30o at the downstream end of the third pipe part 36 is connected to the filling device PI, and the hydrogen-containing water GL flowing out from the outlet 30o is filled in the filling device PI and filled into each container LP. In addition, the outflow pressure (second pressure) P2 of the hydrogen-containing water GL in the third pipe portion 36 varies due to the pressure loss generated in the filling device PI, but it is lower than the intermediate pressure PM. (For example, P1 = 0 ~ 0.1MPa). That is, in the second pressure reduction unit 32, a pressure reduction of PM-P2 (for example, PM-P2 = 0.2-0 to 0.1 = 0.2 to 0.1 MPa) is generated.

As described above, in the present embodiment, the pressure reducing section 31, 32 is used in the flow path section 30 to decompress the hydrogen-containing water GL in two steps.

In addition, in the hydrogen-containing water GL shortly after passing through the first decompression section 31, a large amount of hydrogen may be generated due to the intense decompression (decompression of the P1-PM part). Air bubbles of HG. Therefore, for example, as indicated by the dotted line RR in the first figure, when the length (flow path length) of the second tube portion 35 between the first decompressing portion 31 and the second decompressing portion 32 is short, there is a large amount of air bubbles. In this state, the hydrogen-containing water GL reaches the intermediate pressure detector 33 and even reaches the second decompression unit 32. In this way, the intermediate pressure detector 33 cannot detect the intermediate pressure PM in the second pipe portion 35 appropriately, and it becomes difficult to control the pressure in the second decompression portion 32. Moreover, the hydrogen-containing water GL in a state containing a large number of bubbles sometimes passes through the second decompression section 32 to reach the third pipe section 36 downstream thereof, and even reaches the filling device PI.

When the hydrogen-containing water GL containing a large number of bubbles is supplied to the filling device PI, before the hydrogen-containing water GL is filled into the container LP, or during the filling, hydrogen HG leaks out and the filling becomes an obstacle, or the filling concentration is lower than the desired hydrogen Defective concentration of hydrogen-containing water GL.

In contrast, in the supply device 1 of the present embodiment, as shown by the solid line in the first figure, the second pipe section 35 between the first decompression section 31 and the second decompression section 32 is on the upstream section. In addition to 35j and the downstream portion 35k, a thick pipe extension 35d is provided. Among these, the upstream portion 35j and the downstream portion 35k are made of the same flow pipe material as the first pipe portion 34 and the third pipe portion 36, so the inner diameter and the cross-sectional area of the flow path are also the same as these.

In addition, as shown in FIG. 1, the thick pipe extension 35d is a cross-sectional area (inner diameter) of the flow path compared with the upstream portion 35j and the downstream portion 35k (even the first tube portion 34 and the third tube portion 36). ) A thick tube section composed of a larger flow tube. Specifically, the inner diameter of the thick pipe extension 35d is approximately doubled compared to the inner diameters of the upstream portion 35j and the downstream portion 35k (the cross-sectional area of the flow path is therefore 4 times). A part of the second tube portion 35 is configured as such a thick tube extension portion 35d. Therefore, The hydrogen-containing water GL flowing from the first decompression section 31 is delayed through the thick pipe extension 35d to reach the second decompression section 32. Specifically, the thick tube extension 35d reduces the flow rate of the hydrogen-containing water GL (specifically, the flow rate is reduced to 1/4) and delays the time to reach the second decompression section 32. Therefore, the delay time can be ensured continuously. , Shorten the entire length of the thick tube extension 35d.

Furthermore, when the cross-sectional area (inner diameter) of the thick-tube extension 35d is extremely increased, when the inside of the flow-path section 30 is cleaned by the circulation of the cleaning solution, the thick-tube extension 35d, The flow rate of the cleaning solution becomes extremely low and the cleaning performance is reduced. In some cases, the thick tube extension 35d is too thick, which may cause problems. Therefore, it is preferable that the cross-sectional area of the flow path of the thick-tube extension portion (thick-tube portion) 35d is within 10 times of the cross-sectional area of the flow path of the other portions of the second tube portion 35 (the upstream portion 35j and the downstream portion 35k).

In contrast, as shown in FIG. 1, the thick pipe extension 35 d of this embodiment is even formed in a U-shape, and flows from the first pressure reducing section 31 to the intermediate pressure detector 33 and the second pressure reducing section 32. The road also becomes a flow path extension for increasing the length of the flow path. In the thick pipe extension 35d of this embodiment, specifically, compared with the case where the thick pipe extension 35d is connected by the flow path shown by the dashed line RR in FIG. 1, the thick pipe extension 35d is formed so that the second pipe 35 The length becomes 4 times. Therefore, the decrease in the flow rate of the hydrogen-containing water GL in the thick-tube extension 35d can be continuously suppressed, and the time to reach the second decompression section 32 can be delayed.

That is, in the present embodiment, by providing a thick pipe extension 35d in the second pipe portion 35, compared with a case where the flow path is connected by a dotted line RR in FIG. The time taken for the hydrogen-containing water GL flowing out of the 1 decompression section 31 to reach the second decompression section 32 is delayed by about 16 times.

Therefore, in the present embodiment, by providing the thick pipe extension 35d in the second pipe portion 35, it can take time to pass compared with the case where the thick pipe extension 35d is not provided in the second pipe portion 35. The second pipe section 35 reaches the intermediate pressure detector 33 and the second decompression section 32. Therefore, in the second tube portion 35, even in the hydrogen-containing water GL shortly after passing through the first decompression portion 31, even if a large amount of hydrogen gas HG bubbles are generated due to the intense decompression, the hydrogen-containing water GL reaches the middle. Before the pressure detector 33 and the second decompression unit 32, most or all of the air bubbles generated in the hydrogen-containing water GL can be dissolved again in the hydrogen-containing water GL to absorb the air bubbles. Therefore, the problem that the intermediate pressure PM cannot be appropriately detected by the intermediate pressure detector 33 due to the air bubbles can be suppressed, and the problem that the pressure control in the second decompression section 32 becomes difficult can be suppressed. In addition, it is also possible to prevent the hydrogen-containing water GL in a state including a large number of bubbles from passing through the second decompression section 32 to reach the third pipe section 36 downstream thereof and even to the filling device PI.

As described above, in the hydrogen-containing water GL supply device 1 according to the present embodiment, a thick pipe extension 35d is provided in the second pipe portion 35, and thereby a flow path provided downstream of the storage tank 21 is provided. In the first decompression section 31 of the section 30, it is possible to suppress the trouble caused by the hydrogen HG bubbles generated by the hydrogen-containing water GL.

(Deformation)

In the supply device 1 for the hydrogen-containing water GL of the embodiment described above, it is exemplified that it includes two decompression sections 31, 32 as the first delay pipe section between the first decompression section 31 and the second decompression section 32. The two pipe portions 35 are provided with a thick pipe extension portion 35d as a delay portion.

However, as shown in FIG. 2, in the same manner as the embodiment, in addition to the thick pipe extension portion (delay portion) 35 d provided in the second pipe portion 35, the second decompression portion 32 may be provided. The downstream third pipe portion 136 is provided with a delay portion. That is, in this modification, the third pipe portion 136 serving as the most downstream pipe portion connected between the second pressure reducing portion 32 serving as the most downstream pressure reducing portion and the outflow port 30o is also provided as the delaying portion. The point of the pipe extension 136d is different from the embodiment.

In the supply device 101 for the hydrogen-containing water GL of this modification, the third pipe portion 136 connecting the second pressure reducing portion 32 and the outflow port 30o is provided in addition to the upstream portion 136j and the downstream portion 136k, and is further provided. The inner diameter and the cross-sectional area of the flow path are the same as those described above, but they are formed in a spiral shape and a U-shape, and the length of the flow path is extended by a pipe extension (flow path extension) 136d. Since the third tube portion 136 is provided with the tube extension portion 136d, it can be delayed from the first tube portion in comparison with the case where the tube extension portion 136d is not provided (refer to the third tube portion 36 and the first figure of the embodiment). The hydrogen-containing water GL flowing out of the 2 decompression section 32 passes through the third pipe section 136 to reach the outlet 30o.

Therefore, in the supply device 101 of this modification, as in the embodiment, even when a large amount of hydrogen gas HG bubbles are generated in the hydrogen-containing water GL shortly after passing through the first decompression section 31, the hydrogen-containing water GL is present in Before reaching the intermediate pressure detector 33 and the second decompression section 32, in the second pipe section 35, most or all of the air bubbles generated in the hydrogen-containing water GL can be dissolved again in the hydrogen-containing water GL to absorb the air bubbles. . Therefore, it is possible to suppress the problem that the intermediate pressure PM cannot be appropriately detected by the intermediate pressure detector 33 due to the air bubbles, and the problem that the pressure control in the second decompression section 32 becomes difficult can be suppressed. In addition, it is possible to prevent the hydrogen-containing water GL in a state including a large number of bubbles from passing through the second decompression section 32 to reach the third pipe section 136 downstream thereof and even to the filling device PI.

In addition, in the supply device 101 of this modified form, the second The decompression of the decompression section 32. Even if a large amount of hydrogen gas HG bubbles are generated in the hydrogen-containing water GL shortly after passing through the second decompression section 32, the hydrogen-containing water GL reaches the outlet 30o in the third pipe section. In 136, most or all of the bubbles generated in the hydrogen-containing water GL may be dissolved again in the hydrogen-containing water GL to absorb the bubbles. Therefore, it is possible to prevent the hydrogen-containing water GL in a state containing a large number of bubbles from reaching the filling device PI through the outflow port 30o.

Furthermore, in the supply device 101 of the above-mentioned modified form, although the example in which the third tube portion 136 is provided with a spiral and U-shaped tube extension 136d is exemplified, it may be provided instead of the tube extension 136d. It is a snake-like tube extension. In addition, instead of the pipe extension 136d, a thick pipe portion composed of a flow pipe having a cross-sectional area larger than that of the flow path may be provided. In addition, instead of the tube extension 136d, a thick tube extension similar to the thick tube extension 35d of the second tube portion 35 may be provided.

In the foregoing, embodiments and modifications of the present invention have been described. However, the present invention is not limited to the above-mentioned embodiments and the like, and it is needless to say that the present invention can be appropriately modified and applied without departing from the scope of the present invention.

In the embodiment and the modification shown in FIG. 1 and FIG. 2, an example in which water WT (without hydrogen) is supplied from the water supply pump 41 to the storage tank 21 is illustrated.

However, a device containing hydrogen HG into the water WT may be provided upstream of the water supply pump 41 to supply hydrogen-containing water GL from the water supply pump 41. In this case, since the concentration of hydrogen contained in the hydrogen-containing water GL is further increased in the storage tank 21, a micro-bubble generating device 26 may be provided in the storage tank 21 as in the embodiment. Alternatively, instead of providing the micro-bubble generating device 26, the storage tank 21 may use a tank that temporarily stores the hydrogen-containing water GL from the water supply pump 41. In addition, in the embodiment, the hydrogen-containing water GL flowing out of the same amount of water WT from the water supply pump 41 to the flow path portion 30 is continuously discharged from the outlet 30o to supply the hydrogen-containing water GL to the filling device PI. Supply device 1. However, the hydrogen-containing water GL may be temporarily stored in the storage tank, and the accumulated hydrogen-containing water GL may be supplied through the flow path portion 30. After the hydrogen-containing water GL in the storage tank is consumed, the hydrogen-containing water GL is stored again to Storage tank.

In the embodiment, an example is provided in which the thick pipe extension 35d serving as the delay portion is provided in the second pipe portion 35. However, the delay portion may be a thick tube portion composed of a flow tube having a cross-sectional area of the flow path larger than that of the other portions (the upstream portion 35j and the downstream portion 35k), or a parallel tube composed of a plurality of flow tubes arranged in parallel. Tube Department. Further, the delay portion may be configured as a flow path extension portion that lengthens the flow path length of the delay tube portion (second tube portion 35).

In the modified embodiment, an example is provided in which the second tube portion 35 is provided with a thick tube extension portion 35d, and the third tube portion 136 is also provided with a tube extension portion 136d. However, because the intermediate pressure PM detected by the intermediate pressure detector 33 and controlled by the second decompression unit 32 is set to a high value (for example, PM = 0.3 MPa), it is shortly after passing the first decompression unit 31. Since the hydrogen-containing water GL is hard to generate bubbles, a delay portion may be provided only in the third pipe portion 136 downstream of the second decompression portion 32. That is, a configuration in which only the third pipe portion 136 is regarded as a delay pipe portion may be adopted.

In addition, in the embodiment and the modification, two pressure reducing sections 31 and 32 are used so that the pressure applied to the hydrogen-containing water GL is reduced from the storage tank pressure (first pressure) P1 to the outflow pressure (the first 2 pressure) P2. However, when it is desired to increase the tank pressure P1, three or more pressure reducing sections may be used to reduce the pressure. In this case, as long as two or more decompression section pipe sections are connected between the decompression sections, In either case, a delay section may be provided. Because the pressure adjustment in the decompression section on the downstream side can be suppressed, it becomes difficult to mix a large amount of bubbles into the bubble-containing liquid. In addition, as described above, a delay section may be provided in a plurality of two or more decompression section pipe sections. In addition, it is more preferable to provide a delay portion in each of the two or more pressure reducing portions. Alternatively, when the tank pressure P1 is low, only one pressure reducing section may be provided, and the third pipe section 136 in the deformed form may be connected to the most downstream pipe section connecting the pressure reducing section and the outlet. Similarly, a delay section is provided.

Further, in the embodiment and the like, both the first pressure reducing section 31 and the second pressure reducing section 32 use a primary pressure adjusting valve for adjusting the primary pressure to a constant value. However, a supply device may be configured by using a secondary pressure adjustment valve (pressure reducing valve) for adjusting the secondary pressure to a constant value.

PI‧‧‧filling device

LP‧‧‧container

GL‧‧‧ Hydrogen-containing water

RR‧‧‧ dotted line

WT‧‧‧ Water

P1‧‧‧tank pressure (first pressure)

P2‧‧‧ Outlet pressure (second pressure)

PM‧‧‧Intermediate pressure

HB‧‧‧ Hydrogen cylinder

BB‧‧‧fine bubbles

HG‧‧‧Hydrogen

JL‧‧‧Circulating water

PJ‧‧‧Circulating water pressure

1‧‧‧ supply device

10‧‧‧Control Department

20‧‧‧Reservation Department

21‧‧‧ storage tank

21i‧‧‧Inlet

21o‧‧‧ Outlet

21p‧‧‧Circulation flow outlet

21q‧‧‧Circulation flow inlet

22‧‧‧The first pressure detector

24‧‧‧Circulation pump

25‧‧‧Circular Pressure Detector

26‧‧‧Fine bubble generating device

26g‧‧‧gas inlet

26w‧‧‧Water inlet

28‧‧‧Flow Regulator

30‧‧‧Flow Road Department

30o‧‧‧ Outlet

31‧‧‧The first decompression section

32‧‧‧ 2nd decompression section

33‧‧‧Intermediate Pressure Detector

34‧‧‧The first tube department

35‧‧‧The second tube department

35d‧‧‧thick pipe extension

35j‧‧‧Upstream

35k‧‧‧downstream

36‧‧‧The third management department

41‧‧‧Water Pump

42‧‧‧Check valve

Claims (5)

A gas-containing liquid supply device, comprising: a storage tank for storing the aforementioned gas-containing liquid whose pressure is applied to a gas-containing liquid selectively containing a predetermined gas; The gas-containing liquid is connected to the storage tank and the gas-containing liquid flows, and the gas-containing liquid having a pressure lower than the second pressure of the first pressure flows out from the outflow port; wherein the flow path portion includes: one or a plurality of pressure reducing portions , So that the pressure applied to the gas-containing liquid is lower on the secondary side compared to the primary side; the most upstream pipe section connects the storage tank to the most upstream side of the decompression section Between the decompression sections; the most downstream pipe section connecting the most downstream decompression section located on the most downstream side of the decompression section and the outflow port; and at least one decompression section pipe section, when the decompression section When there is a plurality of pieces, the decompression sections are connected in order. At least one of the decompression section pipe section and the most downstream pipe section of the delay pipe section includes a delay connection from the upstream side. The gas-containing liquid flowing out to the decompression section upstream of the delay pipe section in the decompression section passes through the delay pipe section to reach the delay pipe section connected to the decompression section in the decompression section from the downstream side. Downstream side decompression section or time delay section of the aforementioned outlet. The gas-containing liquid supply device as described in the scope of patent application item 1, Among them, the delay portion is a thick tube portion composed of the flow tube having a cross-sectional area of a flow path that is larger than that of the other delay tube portions. The gas-containing liquid supply device according to item 1 or 2 of the scope of patent application, wherein the delay portion is a flow path extension portion that lengthens a flow path length of the delay tube portion. The gas-containing liquid supply device according to item 1 or 2 of the scope of patent application, wherein the predetermined gas system is hydrogen, and the gas-containing liquid system is hydrogen-containing water. The gas-containing liquid supply device according to item 3 of the scope of the patent application, wherein the predetermined gas system is hydrogen, and the gas-containing liquid system is hydrogen-containing water.