TWI736615B - Liquid supply device containing gas - Google Patents

Abstract

Provided is a gas-containing liquid supply device that suppresses defects caused by bubbles generated by the gas-containing liquid directly below the decompression portion provided on the flow path portion downstream of the storage tank.

The gas-containing liquid GL supply device 1, 101 includes: a storage tank 21 containing a predetermined gas HG, storing the gas-containing liquid GL to which the first pressure P1 is applied; and the flow path portions 30, 130, which flow out the second pressure from the outlet 30o P2 liquid containing gas. The flow path section has: one or more decompression sections 31, 32 to reduce the pressure of the gas-containing liquid; the most upstream pipe section 34; the most downstream pipe section 36, 136; and at least one inter-decompression pipe section 35, when When there are multiple decompression parts, connect the decompression parts; the delay tube part 35,136 of at least one of the pipe part between the decompression parts and the most downstream pipe part includes the delay of the arrival of the liquid containing gas and is connected to the downstream side The delay part 35d, 136d of the downstream side pressure reducing part 32 or the outflow port 30o of the delay pipe part.

Description

Liquid supply device containing gas

This technology relates to a supply device for supplying a gas-containing liquid that selectively contains a predetermined gas.

In recent years, in the hydrogen-containing water (so-called hydrogen water) that contains a large amount of hydrogen in water, etc., it is known that there is a case of reducing hydroxyl radicals as active oxygen in the living body. In the drinking field, hydrogen-containing water is Attention. A production device for producing a gas-containing liquid selectively containing a predetermined gas such as hydrogen-containing water has been proposed with various structures (see, for example, Patent Documents 1 and 2).

【Advanced Technical Literature】 【Patent Literature】

[Patent Document 1] Japanese Model Registration No. 3185776

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

The hydrogen-containing water and other gas-containing liquids produced in this kind of manufacturing equipment are stored in the storage tank, and are supplied to the equipment located downstream of the storage tank through the flow path, and are supplied, for example, to fill the gas-containing liquid To the filling device of the container.

However, when the gas-containing liquid in the storage tank to which the first pressure is applied flows out from the outflow port of the flow path under the second pressure where the pressure is lower, When one or more pressure reducing parts (pressure regulating valves) are installed in the flow path to reduce the pressure applied to the liquid, a large number of bubbles are generated in the liquid directly below the pressure reducing part, and the adjustment is further downstream. The pressure at the decompression part becomes difficult. In order to extract gas from the gas-containing liquid, sometimes it is impossible to supply the gas-containing liquid in the state where the liquid contains the desired amount of gas to the downstream equipment (filling device, etc.) .

This technology was developed in view of the above-mentioned problems. Among them, it provides a method for suppressing the bubbles caused by the gas-containing liquid directly below the decompression part provided on the flow path part downstream of the storage tank. A liquid supply device containing gas for bad conditions.

The aspect for solving the above-mentioned problem is a gas-containing liquid supply device, which includes a storage tank for storing the pressure applied to the gas-containing liquid that selectively contains a predetermined gas, and is adjusted to the first pressure The gas-containing liquid; and the flow path portion, which is connected to the storage tank through which the gas-containing liquid flows, and the gas-containing liquid whose pressure is lower than the second pressure of the first pressure flows out from the outlet; wherein, the aforementioned The flow path part has: one or more decompression parts, so that the pressure exerted on the aforementioned gas-containing liquid is lower on the secondary side compared with the primary side; the most upstream pipe part connects the aforementioned storage tank with the Between the most upstream decompression section on the most upstream side in the aforementioned decompression section; the most downstream pipe section connecting between the most downstream decompression section located on the most downstream side of the aforementioned decompression section and the aforementioned outflow port; and at least one The inter-decompression pipe section, when there are plural decompression sections, connect the decompression sections in order; the delay pipe of at least one of the inter-decompression section pipe section and the most downstream pipe section The part includes: the delay is connected from the upstream side to the upstream side of the delay tube part in the aforementioned pressure reducing part. The gas-containing liquid flowing out of the part passes through the delay pipe part to reach the downstream side pressure reducing part of the delay pipe part connected to the pressure reducing part or the time delay part of the outflow port from the downstream side.

In this gas-containing liquid supply device, one or more decompression parts are provided in the flow path part, and at least one of the pipe part between the decompression parts of the flow path part and the delay pipe part of the most downstream pipe part With a delay section.

In this delay tube section, by the pressure reduction in the upstream side decompression section connected to the delay tube section from the upstream side, in the upstream region of the delay tube section directly below the upstream side decompression section, even if there is gas When a lot of bubbles are generated in the liquid, the delay tube includes a delay part. Compared with the case where the delay part is not provided, the liquid containing gas reaches the downstream pressure-reducing part or the outflow port on the downstream side. Both can make most or all of the bubbles re-dissolve into the liquid and absorb the bubbles. Therefore, it is possible to alleviate the difficulty in pressure reduction at the downstream side pressure-reducing part connected to the delay tube part from the downstream side. Alternatively, a gas-containing liquid containing a desired amount of gas in the liquid may be supplied to a machine (for example, a filling device) provided downstream of the delay tube.

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

Liquids containing established gases, such as pure water, ultra-pure water, drinking water, well water, natural water, etc., or beverage water stock solution, beverage stock solution, beer stock solution, sparkling wine added with sugar, salt, etc. Alcoholic liquids such as raw liquids, seawater, various culture liquids, various aqueous solutions, edible fats and oils, fats for butter, fats for margarine, etc., 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 cited.

The storage tank only needs to be a tank that stores a gas-containing liquid whose pressure is adjusted to the first pressure. Therefore, a tank for separately storing a predetermined amount of gas-containing liquid adjusted to the first pressure can be exemplified. In addition, it can also be exemplified as receiving the supply of gas-containing liquid from the outside to the tank body, while allowing the gas-containing liquid to flow out of the tank body to the temporary gas-containing liquid storage part of the flow path. groove. In addition, it can also be exemplified to receive gas-free liquid from the outside, or supply of gas-containing liquid with low gas content, and use a micro-bubble generating device installed in the tank or side wall to turn the predetermined gas into micro-bubbles. To be contained in the liquid (or liquid containing gas), and after dissolving it in the liquid, it is possible to supply a liquid containing gas with a predetermined gas content to the equipment (filling device, etc.) located downstream of the flow path. It is also used as a storage tank for a part of the manufacturing equipment of liquid containing gas.

The pressure-reducing part also includes components that open and close the valve part by the movement of the valve body to reduce the pressure of the secondary side hydraulic pressure (reduced pressure) lower than the primary side hydraulic pressure. For example, in the primary pressure regulating valve or the secondary pressure regulating valve (reducing In addition to pressure valves), etc., it also includes parts that generate pressure loss so that the secondary side hydraulic pressure is lower than the primary side (e.g., flow control valves, orifices, etc.). In addition, the pressure reducing part uses the detection result of the pressure detector that detects the primary or secondary side hydraulic pressure of the pressure reducing part, and a controllable pressure reducing part (primary pressure regulating valve or secondary pressure regulating valve ( Pressure reducing valve)), so that the pressure detected by this pressure detector becomes the established value. In addition, a pressure reducing unit (primary pressure regulating valve or secondary pressure regulating valve (reducing valve)) to manually adjust the primary or secondary hydraulic pressure of the pressure reducing unit can also be used.

In addition, the delay part may be a thick tube part whose inner diameter is larger than other parts of the enlarged flow path cross-sectional area among the delay tube parts. In this thick tube, there is gas The flow rate of the liquid is reduced, so in this part, the time for the gas-containing liquid flowing out of the pressure-reducing section on the upstream side to reach the pressure-reducing section or the outlet on the downstream side can be delayed. In addition, it is also possible to exemplify a parallel pipe section that flows a liquid containing gas through a plurality of flow pipes 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, but the configuration is, for example, U-shaped, serpentine, spiral, etc., to deliberately lengthen the flow path extension of the flow path. In this case, by lengthening the flow path on the extension portion of the flow path, the time for the liquid containing gas to reach the downstream pressure reducing portion or outflow port can be delayed. Moreover, two or three of the aforementioned thick tube part, parallel tube part and flow path extension part can also be used at the same time. For example, the thick tube part can be formed into a U-shaped or meandering or spiral flow path extension part. . Moreover, it is also possible to provide a plurality of delay sections of the same or different types on one delay tube section.

In addition, among the flow path portions, the delay tube portion of at least one of the inter-decompression-portion tube portion and the most downstream tube portion includes a delay portion. Therefore, the delay tube includes one case as well as multiple cases. When there are a plurality of delay tube parts, sometimes the downstream side pressure reducing part in the upstream side delay tube part is also equivalent to the upstream side pressure reducing part in the downstream side delay tube part.

In addition, there are a plurality of decompression parts. Therefore, when there are one or more inter-decompression part pipe parts, it is better to treat each decompression part pipe part as a delay pipe part, that is, in each decompression part The intermediate tube part is provided with a delay part respectively. Because the delay part is provided in the pipe between the pressure reducing parts, the gas-containing liquid containing a large number of bubbles reaches the downstream pressure reducing parts connected to the pipe between the pressure reducing parts from the downstream side, and it can be restrained from being on the downstream side. Circumstances where the decompression department cannot properly decompress.

The equipment installed on the downstream side of the outlet of this supply device, for example For example, a filling device for filling a liquid with bubbles into a container, or a buffer tank for filling. Moreover, when a filling device is installed, it is sufficient to select a well-known filling device for the liquid and container containing gas to be filled. Containers filled with liquids containing gas, such as glass bottles, bottles, steel cans, aluminum cans, retort bags with stoppers, retort bags without stoppers, etc., as long as they correspond to the liquid or contain the established container For gas, the container can be selected appropriately.

Moreover, the above-mentioned gas-containing liquid supply device may be formed as a gas-containing liquid supply device in which the delay portion is a thick tube composed of a flow pipe whose flow path cross-sectional area is larger than that of other parts of the delay tube portion. .

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

Furthermore, any of the above-mentioned gas-containing liquid supply devices may be configured as a gas-containing liquid supply device in which the delay portion is a flow path extension portion in which the length of the delay tube portion is lengthened.

In this gas-containing liquid supply device, the delay portion is constituted by a flow path extension portion that increases the length of the flow path of the delay tube portion. Therefore, in the delay tube part to which the delay part (flow path extension part) belongs, the flow rate of the liquid containing gas can be prevented from decreasing, or the decrease in the flow rate can be continuously suppressed, and the time to reach the downstream pressure reducing part or the outflow port can be delayed.

Moreover, any of the above-mentioned gas-containing liquid supply devices can be made into the above-mentioned predetermined gas system hydrogen, and the aforementioned gas-containing liquid system contains A liquid supply device containing hydrogen gas and water is sufficient.

When the hydrogen-containing water (so-called hydrogen water) containing hydrogen is supplied from the supply device, the equipment (such as the filling device of hydrogen water) located at the downstream side of the outlet of the supply device is generated, and it is desired to supply the state of increasing the hydrogen content as much as possible The expectation of hydrogen-containing water (hydrogen water) below. On the other hand, in this supply device, a delay part is provided in the delay tube part. Therefore, as the pressure is reduced, even if a large amount of hydrogen bubbles are generated in the hydrogen-containing water at the delay tube part directly below the pressure reduction part, it can reach The hydrogen-containing water reaches the downstream pressure-reducing part or the outflow port on the downstream side, so that most or all of the bubbles are re-dissolved in the hydrogen-containing water, and the bubbles are absorbed. Furthermore, it is possible to alleviate the difficulty of decompression at the downstream side decompression part on the downstream side of the delay tube part. Alternatively, it is possible to supply hydrogen-containing water containing a large amount of hydrogen in the liquid to a machine (a filling device for hydrogen water) provided downstream of the delay tube.

WT‧‧‧Water

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

HG‧‧‧Hydrogen

P1‧‧‧ Tank pressure (1st pressure)

P2‧‧‧Outlet pressure (2nd 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‧‧‧(storage tank) inlet

21o‧‧‧(storage tank) outlet

22‧‧‧The first pressure detector

30, 130‧‧‧Flow Department

30o‧‧‧(flow path part) outlet

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

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

33‧‧‧Intermediate pressure detector

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

35‧‧‧Second pipe part (pipe part between decompression department, delay pipe part)

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

35j‧‧‧Upstream part (other parts of the delay pipe part)

35k‧‧‧Downstream (other parts of the delay pipe)

36‧‧‧The third pipe section (the most downstream pipe section)

136‧‧‧The third pipe (the most downstream pipe, the delayed pipe)

136d‧‧‧Pipe extension part (delay part, flow path extension part)

136j‧‧‧Upstream part (other parts of the delay pipe part)

136k‧‧‧Downstream (other parts of the delay pipe)

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

Fig. 2 is an explanatory diagram schematically showing the configuration of the supply device for the modified form, which is also used for the production of hydrogen-containing water, and the hydrogen-containing water is supplied to the filling device.

The embodiment of the present technology is shown in FIG. 1, and it will be described with reference to an explanatory diagram showing the structure of a hydrogen-containing water supply device. In this embodiment, the supply device 1 is used to continuously manufacture and supply hydrogen-containing water GL, and to fill the hydrogen-containing water GL into the filling device PI of the container LP.

The hydrogen-containing water supply device 1 includes: a storage part 20, which stores The hydrogen water GL is in the storage tank 21; the flow path section 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 section 10 controls these storage sections 20 and flow path sections 30 machines.

Among them, as shown in Figure 1, the storage portion 20 is connected to the inlet 21i provided in the lower part of the storage tank 21, and includes a water supply pump 41 for supplying water WT from the outside (without hydrogen), and preventing the flow from the storage tank 21. Check valve 42 for reverse flow of water WT. The water WT supplied to the storage tank 21 fills the storage tank 21. Moreover, as described below, the storage tank 21 is always in a state of full water, and the hydrogen-containing water GL corresponding to the amount of water WT injected into the storage tank 21 by the self-supplying pump 41 is from the outlet provided in the upper part of the storage tank 21 21o flows out to the flow path section 30. In addition, the water supply pump 41 can also use an additional flow rate detector to control the water supply amount (flow rate) of the water WT through the control unit 10.

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

The fine bubble generating device 26 is, for example, the swirling type fine bubble generating device disclosed in Patent Document 2 (Japanese Patent Laid-Open No. 2000-447). The water WT (or hydrogen-containing water GL) injected from the water inlet 26w is rotated and supplied at the same time. Hydrogen HG goes to its central part and generates many fine bubbles BB containing hydrogen with a diameter of several 10μm or less in the water. Therefore, the hydrogen-containing water GL containing many fine bubbles BB is injected into the storage tank 21 from the circulation inlet 21q opened on the side of the storage tank 21.

In this way, in the storage tank 21, water WT (without hydrogen) is supplied from the lower part of the tank body 21, and at the same time, the circulating pump 24 and the fine bubble generating device 26 are used to contain the hydrogen-containing water GL system containing many fine bubbles BB. It is cyclically injected. Therefore, after a certain amount of time has passed, 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 a large number of hydrogen HG is normally For the storage, only the portion of the water WT supplied from the inflow port 21i, and the hydrogen-containing water GL flows out to the flow path portion 30 from the outflow port 21o of the storage tank 21.

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

The first decompression part 31 corresponds to a decompression part, and corresponds to the most upstream decompression part located on the most upstream side among a plurality of decompression parts. The second decompression part 32 is also equivalent to a decompression part, and it corresponds to the most downstream decompression part located on the most downstream side among a plurality of decompression parts. In addition, the first pipe section 34 corresponds to the most upstream pipe section connecting the storage tank and the first decompression section 31 as the most upstream decompression section. The second pipe portion 35 corresponds to a pipe portion between decompression sections that connects the first decompression section 31 and the second decompression section 32. Furthermore, the third pipe portion 36 corresponds to the most downstream pipe portion connecting the second pressure reducing portion 32 and the outflow port 30o.

Furthermore, as described below, the second tube portion 35 corresponds to the delay tube portion, so the first decompression portion 31 is also equivalent to connecting from the upstream side with respect to the second tube portion 35 as the delay tube portion. The upstream side decompression section. Similarly, the second decompression part 32 also corresponds to the downstream decompression part connected from the downstream side with respect to the second pipe part 35 which is a delay pipe part.

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

The first pressure reducing section 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 section 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 The storage tank pressure P1 of the hydrogen water GL is maintained at a predetermined value (for example, at the gauge pressure P1=0.4MPa). Therefore, the pressure of the hydrogen-containing water GL in the storage tank 21 is maintained at the tank pressure P1 by the flow control of the first decompression part 31 by the control part 10, and the amount is equal to the water supplied by the self-supply water pump 41 The hydrogen-containing water GL with the same amount of WT flows out from the outlet 21o.

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

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

And, by this, in the first decompression part 31, a partial pressure reduction of P1-PM (for example, P1-PM=0.4-0.2=0.2 MPa) occurs.

The outflow port 30o at the downstream end of the third pipe portion 36 is connected to the filling device PI, and the hydrogen-containing water GL flowing out from the outflow port 30o is in the filling device PI and is filled into each container LP. Furthermore, the outlet pressure (second pressure) P2 of the hydrogen-containing water GL in the third pipe portion 36 fluctuates 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 reducing section 32, a pressure reduction of PM-P2 (for example, PM-P2=0.2-0~0.1=0.2~0.1 MPa) occurs.

In this way, in the present embodiment, in the flow path section 30, the two decompression sections 31 and 32 are used, and the hydrogen-containing water GL is decompressed in two steps.

In addition, in the hydrogen-containing water GL shortly after passing through the first decompression part 31, sometimes due to the intense decompression (the decompression of the P1-PM part), a large amount of hydrogen is generated. The air bubbles of HG. Therefore, for example, as shown by the dotted line RR in the first figure, when the length (flow path length) of the second tube portion 35 between the first decompression portion 31 and the second decompression portion 32 is short, it contains a large number of bubbles. The hydrogen-containing water GL in this state reaches the intermediate pressure detector 33 and even reaches the second pressure reducing section 32. As a result, the intermediate pressure detector 33 cannot properly detect the intermediate pressure PM in the second pipe section 35, and the pressure control in the second pressure reducing section 32 becomes difficult. In addition, 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 filling, hydrogen gas HG is generated leaking, the filling is obstructed, or the filling concentration is lower than the expected hydrogen gas The undesirable condition of the 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 35 between the first decompression section 31 and the second decompression section 32 is located in the upstream section. In addition to 35j and the downstream portion 35k, a thick pipe extension 35d is also provided. Among these, the upstream portion 35j and the downstream portion 35k are composed of the same flow pipe material as the first pipe portion 34 and the third pipe portion 36, and therefore, 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 has a flow path cross-sectional area (internal diameter ) The thick tube part formed by the larger flow tube. Specifically, the inner diameter of the thick pipe extension portion 35d is approximately twice as large as the inner diameters of the upstream portion 35j and the downstream portion 35k (so the cross-sectional area of the flow path is four times). The part of the second tube part 35 is formed of such a thick tube extension part 35d, therefore, The hydrogen-containing water GL flowing out from the first decompression part 31 can pass through the thick pipe extension part 35d, and the time to reach the second decompression part 32 is delayed. Specifically, the thick pipe extension 35d reduces the flow rate of the hydrogen-containing water GL (specifically, reduces the flow rate to 1/4), and delays the time to reach the second pressure reducing section 32, so the delay time can be maintained continuously , Shorten the entire length of the thick tube extension 35d.

Furthermore, when the cross-sectional area (inner diameter) of the flow path of the thick pipe extension 35d is extremely enlarged, when the inside of the flow path portion 30 is cleaned by the flow of the washing liquid, because of the thick pipe extension 35d, The flow rate of the cleaning solution becomes extremely low and the cleaning performance is reduced. Sometimes, 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 pipe extension portion (thick pipe portion) 35d is within 10 times the cross-sectional area of the flow path of the other parts of the second pipe portion 35 (upstream portion 35j and downstream portion 35k).

In contrast, the thick pipe extension 35d of this embodiment is even formed in a U-shape as shown in Fig. 1, and flows from the first decompression section 31 to the intermediate pressure detector 33 and the second decompression section 32 The path also becomes a flow path extension that increases the length of the flow path. In the thick pipe extension 35d of this embodiment, specifically, compared with the case where the flow path shown by the broken line RR in FIG. 1 is connected, the thick pipe extension 35d is formed so that the second pipe 35 The length becomes 4 times. Therefore, it is possible to continuously suppress the decrease in the flow rate of the hydrogen-containing water GL in the thick pipe extension portion 35d, and it is possible to delay the time to reach the second decompression portion 32.

That is, in the present embodiment, by providing a thick pipe extension 35d in the second pipe portion 35, compared with the case where the flow path is connected as shown by the broken line RR in FIG. The time at which the hydrogen-containing water GL flowing out of the first decompression section 31 reaches 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 flow compared with the case where the thick pipe extension 35d is not provided in the second pipe portion 35. The second pipe part 35 reaches the intermediate pressure detector 33 and the second pressure reducing part 32. Therefore, in the second pipe portion 35, in the hydrogen-containing water GL shortly after passing through the first decompression portion 31, even if a large number of hydrogen HG bubbles are generated due to the intense pressure reduction, the hydrogen-containing water GL reaches the middle Before the pressure detector 33 and the second decompression part 32, most or all of the bubbles generated in the hydrogen-containing water GL can be re-dissolved in the hydrogen-containing water GL to absorb the 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 air bubbles, and it is possible to suppress the problem that the pressure control in the second pressure reducing section 32 becomes difficult. In addition, it is also possible to prevent the hydrogen-containing water GL in a state containing a large number of bubbles from passing through the second decompression portion 32 to reach the third pipe portion 36 downstream thereof, and even to the filling device PI.

In this way, in the hydrogen-containing water GL supply device 1 of the present embodiment, the second pipe portion 35 is provided with the thick pipe extension portion 35d, whereby the flow path provided on the downstream side of the storage tank 21 In the first decompression section 31 of the section 30, it is possible to suppress defects caused by the bubbles of hydrogen HG generated by the hydrogen-containing water GL.

(Deformed form)

In the hydrogen-containing water GL supply device 1 of the above-mentioned embodiment, it is exemplified to include two decompression parts 31, 32, and the first decompression part as the delay tube part between the first decompression part 31 and the second decompression part 32 The 2 tube section 35 is provided with a thick tube extension section 35d as a delay section.

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

In the hydrogen-containing water GL supply device 101 of this modification, the third pipe portion 136 connecting the second decompression portion 32 and the outflow port 30o is connected to the upstream portion 136j and the downstream portion 136k, and is also provided The inner diameter and the cross-sectional area of the flow path are the same as these, but are formed into a spiral and U-shaped pipe extension portion (flow path extension portion) 136d in which the length of the flow path is increased. In the third pipe portion 136, since the pipe extension portion 136d is provided, it can be delayed from the first pipe as compared with the case where the pipe extension portion 136d is not provided (refer to the third pipe portion 36 of the embodiment and the first figure). 2 The hydrogen-containing water GL flowing out of the decompression section 32 passes through the third pipe section 136 to reach the outflow port 30°.

Therefore, in the supply device 101 of this modification, as in the embodiment, even when a large number of bubbles of hydrogen HG are generated in the hydrogen-containing water GL shortly after passing through the first decompression section 31, the hydrogen-containing water GL is Before reaching the intermediate pressure detector 33 and the second pressure reducing section 32, in the second pipe section 35, most or all of the bubbles generated in the hydrogen-containing water GL can be re-dissolved in the hydrogen-containing water GL to absorb the bubbles . Therefore, it is possible to suppress the failure of the intermediate pressure detector 33 to properly detect the intermediate pressure PM due to bubbles, and it is possible to suppress the failure of the pressure control in the second pressure reducing section 32 to become difficult. In addition, it is also possible to prevent the hydrogen-containing water GL in a state containing a large number of bubbles from passing through the second decompression portion 32 to reach the third pipe portion 136 downstream thereof, and even to the filling device PI.

In addition, in the supply device 101 of this modification, the second The decompression of the decompression section 32, the hydrogen-containing water GL shortly after passing through the second decompression section 32, even if a large number of bubbles of hydrogen HG are generated, the hydrogen-containing water GL reaches the third pipe part 30o before reaching the outflow port. In 136, most or all of the bubbles generated in the hydrogen-containing water GL can be re-dissolved 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 passing through the outflow port 30o to reach the filling device PI.

In addition, in the supply device 101 of the above-mentioned modification, although the third pipe portion 136 is provided with a spiral and U-shaped pipe extension 136d, it may be provided instead of the pipe extension 136d. It is the extension of the serpentine tube. In addition, instead of the tube extension 136d, a thick tube composed of a flow tube whose flow path cross-sectional area is larger than other parts 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 35 may be provided.

The embodiments and modified forms of the present invention have been described above, but the present invention is not limited to the above-mentioned embodiments and the like, and it is of course possible to appropriately change and apply them within a scope that does not deviate from the gist of the present invention.

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

However, in addition, it is also possible to install a device containing hydrogen HG into the water WT upstream of the water supply pump 41, and the self-supply water pump 41 supplies hydrogen-containing water GL. In this case, in the storage tank 21, the concentration of hydrogen contained in the hydrogen-containing water GL is further increased. Therefore, as in the embodiment, a fine bubble generating device 26 may be provided in the storage tank 21. Alternatively, the fine bubble generating device 26 may not be provided, and the storage tank 21 may use a tank body that temporarily stores the hydrogen-containing water GL from the water supply pump 41. Furthermore, in the embodiment, the hydrogen-containing water GL that is equivalent to the water WT from the water supply pump 41 flows out to the flow path portion 30, and the hydrogen-containing water GL is continuously supplied from the outlet 30o to the filling device PI. Supply device 1. However, it is also possible to temporarily store the hydrogen-containing water GL in the storage tank 21, and supply the stored part of the hydrogen-containing water GL through the flow path section 30, and after the hydrogen-containing water GL in the storage tank 21 is consumed, the hydrogen-containing water is stored again. GL to tank 21.

In the embodiment, an example is exemplified in which a thick pipe extension portion 35d as a delay portion is provided in the second pipe portion 35. However, it is also possible to make the delay part a thick tube part composed of a flow pipe whose cross-sectional area of the flow path is larger than the other parts (upstream part 35j and downstream part 35k), or a juxtaposition composed of a plurality of flow tubes arranged in parallel Department of Management. In addition, the delay section may be constituted by a flow path extension section that increases the flow path length of the delay tube section (the second tube section 35).

In addition, in the modified form, in addition to the thick tube extension 35d provided in the second tube section 35, the third tube section 136 is also provided with the tube extension section 136d. However, because it is detected by the intermediate pressure detector 33 and the intermediate pressure PM controlled by the second pressure reducing unit 32 is set to be higher (for example, PM=0.3MPa), it is shortly after passing through the first pressure reducing unit 31 The hydrogen-containing water GL hardly generates bubbles. Therefore, only the third pipe portion 136 on the downstream side of the second pressure reducing portion 32 may be provided with a delay portion. In other words, it is also possible to use only the third tube portion 136 as the delay tube portion.

In addition, in the embodiment and the modified form, two pressure reducing parts 31, 32 are used to reduce the pressure applied to the hydrogen-containing water GL from the tank pressure (first pressure) P1 to the outlet pressure (second pressure). 2 pressure) P2. However, when it is desired to increase the tank pressure P1, three or more decompression parts can also be used to decompress it. In this case, it is only necessary to provide a delay part in any one of the two or more pipe parts between the pressure reducing parts connecting the pressure reducing parts. Because the pressure adjustment in the pressure reducing section on the downstream side can be suppressed, it becomes difficult due to the mixing of a large number of bubbles in the bubble-containing liquid. In addition, as shown above, a delay part may be provided in a plurality of pipe parts between two or more decompression parts. Moreover, it is better to provide a delay part in the pipe part between two or more decompression parts. In addition, on the contrary, when the tank pressure P1 is low, only one decompression part is provided, and the third pipe part 136 in the deformed form is provided on the most downstream pipe part connecting the decompression part and the outflow port. Similarly, a delay section is provided.

In addition, in the embodiment and the like, both the first pressure reducing section 31 and the second pressure reducing section 32 use a primary pressure regulating valve that adjusts the primary pressure to a constant level. However, it is also possible to use a secondary pressure adjusting valve (reducing valve) that adjusts the secondary side pressure to a certain level to constitute the supply device.

PI‧‧‧Filling device

LP‧‧‧Container

GL‧‧‧Hydrogenated water

RR‧‧‧dotted line

WT‧‧‧Water

P1‧‧‧ Tank pressure (1st pressure)

P2‧‧‧Outlet pressure (2nd 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‧‧‧Circulating outlet

21q‧‧‧Circulating flow inlet

22‧‧‧The first pressure detector

24‧‧‧Circulating pump

25‧‧‧Circulating pressure detector

26‧‧‧Micro bubble generating device

26g‧‧‧Gas inlet

26w‧‧‧Water inlet

28‧‧‧Flow adjuster

30‧‧‧Flow Department

30o‧‧‧Outlet

31‧‧‧Decompression Department 1

32‧‧‧Second Decompression Department

33‧‧‧Intermediate pressure detector

34‧‧‧Part 1 Pipe

35‧‧‧Second Pipe Department

35d‧‧‧Thick pipe extension

35j‧‧‧Upstream

35k‧‧‧Downstream

36‧‧‧Part 3

41‧‧‧Water supply pump

42‧‧‧Check valve

Claims (5)

A gas-containing liquid supply device, comprising: a storage tank for storing the pressure applied to the gas-containing liquid selectively containing a predetermined gas, and the aforementioned gas-containing liquid adjusted to a first pressure; and a flow path part, The gas-containing liquid is connected to the storage tank and the gas-containing liquid flows through, and the gas-containing liquid whose pressure is lower than the second pressure of the first pressure flows out from the outflow port; wherein, the flow path part has: one or more pressure reducing parts , The pressure applied to the liquid containing gas is lower on the secondary side compared with the primary side; the most upstream pipe section connects the storage tank and the most upstream of the most upstream side in the decompression section Between the decompression parts; the most downstream pipe part, which connects the most downstream decompression part located on the most downstream side of the aforementioned decompression part and the aforementioned outflow port; and at least one inter-decompression part pipe part, when the aforementioned decompression part When there are a plurality of them, the decompression sections are connected in order, and at least one of the inter-decompression section pipe section and the most downstream pipe section includes a delay pipe section including: the delay is connected from the upstream side to the foregoing The gas-containing liquid flowing out of the pressure-reducing section on the upstream side of the delay tube in the pressure reducing section passes through the delay tube to reach the downstream side of the delay tube connected to the pressure reducing section from the downstream side The time of the decompression part or the aforementioned outflow port, so that most or all of the bubbles generated by the aforementioned decompression part are re-dissolved in the liquid to absorb the gas The delayed part of the bubble. The gas-containing liquid supply device described in the first item of the scope of patent application, wherein the delay part is a thick tube part composed of a flow tube whose flow path cross-sectional area is larger than other parts of the delay tube part. The gas-containing liquid supply device described in claim 1 or 2, wherein the delay portion is a flow path extension portion that lengthens the flow path length of the delay tube portion. The gas-containing liquid supply device described in item 1 or 2 of the scope of patent application, wherein the aforementioned predetermined gas system is hydrogen, and the aforementioned gas-containing liquid system contains hydrogen-containing water. The gas-containing liquid supply device described in item 3 of the scope of the patent application, wherein the aforementioned predetermined gas system is hydrogen, and the aforementioned gas-containing liquid system contains hydrogen-containing water.

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