JP3023568B2 - Degassing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Object of the Invention [Industrial Application Field] The present invention relates to a degassing device, and more particularly, to a gas passage mixed with and dissolved in a pressurized liquid in a guide passage of the pressurized liquid. The present invention relates to a degassing device which is directly removed from a gas.

[Prior art] Conventionally, as this type of degassing device, for example,
(I) When applying to a bladder type accumulator, there is no particular proposal, and (ii) When applying to a piston type accumulator, the movement of the piston is hindered due to gas vaporization. For the purpose of avoiding such a situation, a method has been proposed in which the gas leaked from the gas chamber is opened to the atmosphere while taking care not to mix the gas into the pressurized liquid.

[Problems to be Solved] Therefore, in the conventional degassing apparatus, (i) when applying to a bladder-type accumulator, the gas leaked from the gas chamber and mixed into the pressurized liquid to remove dissolved gas is removed. This method has a drawback that when the pressurized liquid is released to the atmosphere at the discharge end, the gas is rapidly vaporized and the liquid is ejected, and (ii) the present invention is applied to a piston type accumulator. In such a case, there is a disadvantage that the gas release structure becomes complicated, and when the gas is mixed and dissolved in the pressurized liquid, it cannot be removed as described above, and the pressurized liquid is released to the atmosphere at the discharge end. There is a disadvantage that the gas is rapidly vaporized and the liquid is ejected.

Therefore, the present invention aims to eliminate these disadvantages,
It is an object of the present invention to provide a degassing device which is incorporated in a guide passage for a pressurized liquid and directly removes a gas mixed and dissolved in the pressurized liquid from the pressurized liquid.

(2) Configuration of the Invention [Means for Solving the Problems] The means for solving the problems provided by the present invention is as follows: "In a degassing device for extracting a gas dissolved in a pressurized liquid from the pressurized liquid, (a) (B) a diaphragm (13), one surface of which is in contact with the pressurized liquid in the guide passage of the pressurized liquid, for allowing gas dissolved in the pressurized liquid to permeate from one surface to the other surface; ) The gas permeating through the diaphragm (13) is temporarily held, then released to the atmosphere through the opening (17a), and
A chamber (16) for holding the pressurized liquid leaked from the guide path of the pressurized liquid due to the damage of (3), and (c) an opening (17a) of the chamber (16). The opening (17a) is formed by the pressure of the pressurized liquid leaked from the guide passage of the pressurized liquid due to the breakage of the diaphragm (13).
And a check valve ( 20 ) for closing the ventilator.

[Action] As described in the section of “Means for Solving the Problems” above, the degassing device according to the present invention is a degassing device for extracting gas dissolved in the pressurized liquid from the pressurized liquid. In particular, (a) a diaphragm that is in contact with the pressurized liquid on one side in the guide path of the pressurized liquid, and that allows gas dissolved in the pressurized liquid to permeate from one side to the other side;
(B) To temporarily hold the gas that has passed through the diaphragm and then release it to the atmosphere through the opening, and to hold the pressurized liquid leaked from the pressurized liquid guide passage due to the breakage of the diaphragm. And (c) a check valve which is disposed with respect to the opening of the chamber and closes the opening by the pressure of the pressurized liquid leaked from the guide passage of the pressurized liquid due to the breakage of the diaphragm. (I) the function of simplifying the structure, (ii) the function of allowing the pressurized liquid to be incorporated in the guide passage, and (iii) the arrangement direction. It has the effect of being arbitrarily selectable.

[Example] Next, a gas venting device according to the present invention will be described in detail with reference to preferred embodiments and the accompanying drawings.

However, the embodiments described below are described for facilitating or facilitating the understanding of the present invention, but not for limiting the present invention.

In other words, each element disclosed in the embodiments described below includes all design changes and equivalent replacements that fall within the spirit and scope of the present invention.

(Description of the accompanying drawings) FIG. 1 is a cross-sectional view showing an embodiment of a degassing apparatus according to the present invention, in which gas from a pressurized liquid permeates through a diaphragm and a perforated plate and is in the vicinity of a check valve. Are shown.

FIG. 2 is a sectional view showing a diaphragm incorporated in the embodiment of FIG.

FIG. 3 is a sectional view showing another operation state of the embodiment of FIG. 1, in which the pressurized liquid is leached into the gas chamber through the diaphragm and the perforated plate, and the check valve is closed. Is shown.

(Configuration of Embodiment) First, the configuration of an embodiment of a gas venting device according to the present invention will be described in detail with reference to FIGS. 1 to 3.

Reference numeral 10 denotes a degassing device according to the present invention, which includes a screw portion (referred to as an "inlet port") 11a for screwing a supply pipe (not shown) for pressurized liquid and a discharge pipe for pressurized liquid (not shown). A screw portion (referred to as an “outlet port”) 11b for attaching a screw (not shown) is formed therein, and a cylindrical body 11 having one end opened and an inlet port 11a formed inside the cylindrical body 11 are provided. and each fluid path 11a relative to the outlet port 11b ^*, 11b ^* liquid chamber 12 for temporarily housing the pressurized liquid to achieve efficient venting from which pressurized liquid is communicated through the And a diaphragm 13 disposed inside the cylindrical body 11 to partition the liquid chamber 12, and for preventing the transmission of the pressurized liquid and permitting the permeation of the gas dissolved in the pressurized liquid. . The diaphragm 13 has a cylindrical shape with one end closed and the other end opened, and secures a contact force between the inner peripheral surface of the cylindrical body 11 when disposed inside the cylindrical body 11. The outer peripheral surface of the skirt (that is, the other end) is projected so that the pressurized liquid can be sealed. Diaphragm 13
Is made of a material (for example, rubber or resin such as silicon rubber) having a high gas permeability that is hardly corroded or deteriorated by the pressurized liquid and gas.

The degassing value 10 according to the present invention also prevents the diaphragm 13 from being damaged by the pressurized liquid while being in contact with the diaphragm 13 and allows the gas permeating the diaphragm 13 to pass therethrough while reducing the pressure. And a perforated plate 14 for guiding.
The perforated plate 14 is formed of a metal or resin that is not easily eroded or deteriorated by gas and pressurized liquid.

The degassing device 10 according to the present invention further includes a protective plate 15 on which a gas guide 15a for guiding gas permeating the diaphragm 13 and the porous plate 14 by pressing the porous plate 14 toward the diaphragm 13 is formed. And a protective plate disposed with respect to the opening of the cylindrical body 11.
A cover 17 for pressing the cover 15 for sectioning the chamber 16 between the protection plate 15 and the cover 17 has one end attached to an outer end of an opening 17a of the cover 17 to guide gas from the chamber 16. The liquid leaked from the diaphragm 13 is guided from the chamber 16 and the pressurized liquid leaked from the liquid chamber 12 when the diaphragm 13 is broken is used when the check valve 20 described later is not operated.
A guide tube 18 for guiding from the guide tube 16 and a gas attached to the other end of the guide tube 18 and opening the gas guided by the guide tube 18 to the atmosphere through an opening 19a and guided by the guide tube 18 And an open-to-atmosphere chamber 19 for holding the received liquid.

 Degassing device according to the present inventionTenIn addition to the lid 17
Arranged for opening 17a, diaphragm 13 was damaged
To the chamber 16 via the diaphragm 13 and the perforated plate 14
When a large amount of pressurized liquid leaks, close opening 17a.
To prevent leakage of pressurized liquid and prevent its pressure drop
Check valve20It has. Check valve20
Is a shaft 21 disposed inside the opening 17a of the lid 17.
Is fixed to the opening 17a of the lid 17 and the shaft 2
1 is held by the through hole 22a and passes gas and liquid
Holding member 22 having another through hole 22b formed therein
Is attached to one end of the shaft 21 and the shaft 21
To prevent the metal from dropping out of the through hole 22a
And the shaft 21 so as to be located inside the chamber 16.
Check valve body 24 arranged at the other end and check valve
It is installed in the installation groove 24a of the valve body 24,
Lube body 24 was pressed by leaked pressurized liquid
Prevents pressurized liquid from flowing out towards opening 17a when
O-ring 25 for mounting and around the shaft 21
For separating the check valve body 24 from the holding member 21
And a spring 26 for pressing the
You.

(Operation of Embodiment) The operation of an embodiment of the degassing device according to the present invention will be described in detail with reference to FIGS. 1 to 3.

Pressurized liquid provided to the inlet port 11a as indicated by arrow A ₁ via a normal operation supply pipe is supplied as shown with respect to the liquid chamber 12 by the arrow A ₂ through the liquid passage 11a ^*. It pressurized liquid, after being moved as shown by arrow A ₃ in liquid chamber 12, is guided to the outlet port 11b through the liquid passages 11b ^* as indicated by the arrow A _4. Pressurized liquid guided to the outlet port 11b is provided to the discharge pipe, it is guided as indicated by arrow A _5.

In the liquid chamber 12, gas dissolved in the pressurized liquid is
Through the diaphragm 13 passes as indicated by arrows B _1, applied to the porous plate 14. In the perforated plate 14, the gas supplied through the diaphragm 13 is guided toward the protection plate 15 while reducing the pressure and evaporating the gas. The gas guided to the protection plate 15 is
It is moved to the chamber 16 as indicated by arrow B ₂ via a. At this time, it pressurized liquid, might be exuded as indicated by an arrow B ₁ through the septum 13, while being reduced in pressure through a perforated plate 14 is guided to the chamber 16 as indicated by arrow B _2.

In the chamber 16, gases and liquids supplied from the liquid chamber 12 through the diaphragm 13 and the perforated plate 14 are supplied by arrows B ₃ to
Through the opening 17a of the cover 17 as shown in B ₆ is guided towards the guide tube 18. Guide tube 18 guided to the air release chamber 19 as indicated gas and liquid by an arrow B _7.

In the air release chamber 19, open to the atmosphere as shown only gas while retaining the liquid out of the gas and liquid which has been guided by the guide tube 18 from the chamber 16, through the open tube 19a by an arrow B _8, B ₉ Is done.

Malfunction supply pipe pressurized liquid provided to the inlet port 11a as indicated by arrow A ₁ via is supplied as shown with respect to the liquid chamber 12 by the arrow A ₂ through the liquid passage 11a ^*. It pressurized liquid, after being moved as shown by arrow A ₃ in liquid chamber 12, is guided to the outlet port 11b through the liquid passages 11b ^* as indicated by the arrow A _4. Pressurized liquid guided to the outlet port 11b is guided as indicated by arrow A ₅ given to the discharge pipe.

In the liquid chamber 13, pressurized liquid passes through the large amount of membrane 13 as indicated by Ban no arrow A ₆ breakage of the diaphragm 13, the perforated plate
Given to 14. In the perforated plate 14, the pressurized liquid provided through the diaphragm 13 is guided toward the protection plate 15. Protection plate
Pressurized liquid guided to 15 are moved into the chamber 16 as indicated by arrow A ₇ through the guide hole 15a.

In the chamber 16, the pressurized liquid supplied from the liquid chamber 12 through the diaphragm 13 and the perforated plate 14 is supplied with a check valve.
By pressing as shown the check valve body 24 of 20 in the arrow A ₈ abuts the O-ring 25 around the inner end of the opening 17a of the cover 17. Along with this, the opening 17a of the lid 17
Is closed so that pressurized liquid can be
18 can be prevented from flowing out, and the pressure of the pressurized liquid that is supplied to the inlet port 11a by the supply pipe and then discharged from the outlet port 11b to the discharge pipe through the liquid chamber 12 decreases. This can be prevented, and the arrangement direction can be arbitrarily selected.

Incidentally, if the pressurized liquid from leaking toward the liquid chamber 12 to the chamber 16 upon breakage of the diaphragm 13, when the check valve 20 is not operated, as shown with respect to the opening 17a of the cover 17 in the arrow B ₃ pressurized liquid There is provided, guided to the air release chamber 19 through the guide tube 18 as indicated by arrow B ₄ .about.B ₇ is maintained.

(Modification) Although the above description has been made assuming that the air release chamber 19 is provided at the other end of the guide tube 18, the present invention is not limited to this. The open chamber may be removed.

(3) Effects of the Invention As is clear from the above description, the degassing device according to the present invention uses the gas dissolved in the pressurized liquid as described in the section of [Means for Solving the Problems] described above. A degassing device for withdrawing the pressurized liquid from the pressurized liquid, particularly, (a) one surface of the depressurized liquid is in contact with the pressurized liquid in a guide path of the pressurized liquid,
A diaphragm for allowing gas dissolved in the pressurized liquid to permeate from one surface to the other surface; and (b) temporarily holding the gas permeating the diaphragm and then releasing the gas to the atmosphere through an opening, and the diaphragm. A chamber for holding the pressurized liquid leaked from the guide passage of the pressurized liquid due to the breakage of the diaphragm; and (c) disposed with respect to the opening of the chamber, and is provided with the breakage of the diaphragm. Since a check valve for closing the opening by the pressure of the pressurized liquid leaked from the guide passage of the pressurized liquid is provided, (i) the structure can be simplified, and (ii) the pressurized liquid has an effect. And (iii) the arrangement direction can be arbitrarily selected.

[Brief description of the drawings]

1 is a sectional view showing an embodiment of a degassing apparatus according to the present invention, FIG. 2 is a sectional view showing a diaphragm incorporated in the embodiment of FIG. 1, and FIG. 3 is FIG. FIG. 11 is a cross-sectional view illustrating another operation state of the embodiment. 10 Gas venting device 11 Cylindrical body 11a Inlet port 11b Outlet port 11a ^* , 11b ^* Liquid passage 12 Liquid chamber 13 Membrane 14 Perforated plate 15 Protection plate 15a ... gas guide hole 16 ... chamber 17 ... lid 17a ... opening 18 ... guide tube 19 ... atmosphere open chamber 19a ... opening 20 ... check valve 21 ... shaft 22 ... holding member 22a ... Through hole 22b ... Through hole 23 ... Retaining ring 24 ... Check valve body 24a ... Arrangement groove 25 ... O-ring 26 ... Spring

Claims (1)

(57) [Claims] 1. A degassing device for extracting gas dissolved in a pressurized liquid from the pressurized liquid, comprising: (a) one surface of the pressurized liquid in a guide passage of the pressurized liquid; A diaphragm (13) for allowing the gas dissolved in the pressurized liquid to permeate from one surface to the other surface; and (b) an opening (17a) for temporarily holding the gas permeating the diaphragm (13) and then holding the gas. Open to the atmosphere through the diaphragm (1
A chamber (16) for holding the pressurized liquid leaked from the guide path of the pressurized liquid due to the damage of (3), and (c) an opening (17a) of the chamber (16). The opening (17a) is formed by the pressure of the pressurized liquid leaked from the guide passage of the pressurized liquid due to the breakage of the diaphragm (13).
And a check valve (20) for closing the valve.