WO2023037730A1 - フィルタ内蔵継手 - Google Patents

フィルタ内蔵継手 Download PDF

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Publication number
WO2023037730A1
WO2023037730A1 PCT/JP2022/026215 JP2022026215W WO2023037730A1 WO 2023037730 A1 WO2023037730 A1 WO 2023037730A1 JP 2022026215 W JP2022026215 W JP 2022026215W WO 2023037730 A1 WO2023037730 A1 WO 2023037730A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
joint
filter element
inlet
built
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/026215
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
保昌 柳田
浩司 平松
友裕 毛利
忠幸 薬師神
邦彦 大道
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikin Inc
Original Assignee
Fujikin Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujikin Inc filed Critical Fujikin Inc
Priority to JP2023546795A priority Critical patent/JP7634298B2/ja
Priority to US18/685,549 priority patent/US20240353048A1/en
Priority to DE112022004278.8T priority patent/DE112022004278T5/de
Priority to KR1020247003912A priority patent/KR102948631B1/ko
Publication of WO2023037730A1 publication Critical patent/WO2023037730A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/24—Preventing accumulation of dirt or other matter in pipes, e.g. by traps, by strainers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen
    • C01B3/50—Separation of hydrogen or hydrogen-containing gases from gaseous mixtures, e.g. purification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0341—Filters

Definitions

  • This invention relates to a joint that incorporates a filter that is arranged in a flow path through which a high-pressure fluid such as hydrogen flows and that removes impurities.
  • high-pressure hydrogen gas is expanding for fuel cell vehicles.
  • impurities in the gas may adversely affect the fuel cell, so impurities in the hydrogen gas must be removed. must. It is necessary to install a filter device for removing impurities in the hydrogen gas pipe flow path.
  • FIG. 6 shows the joint disclosed in Patent Document 1.
  • FIG. A joint disclosed in Patent Document 2 is shown in FIG.
  • the body 110 has a pipe connection portion 120 that connects with the pipe
  • the cap 111 has a pipe connection portion 130 that connects with the pipe, and is a joint arranged in the middle of the pipe.
  • a cylindrical space portion 122 is formed inside the body 110
  • a filter element 113 having a bottomed portion 140 is arranged inside the cylindrical space portion 122
  • the filter element 113 is connected to a holder 143 via a sealing mechanism 115.
  • a through hole is formed in the holder 143 and communicates with the pipe connection portion 120 .
  • the cap 111 is formed with a channel 128 communicating with the pipe, and the cap 111 and the body 110 are screwed together. , the compression force presses the filter element 113 rightward, compressing and sealing the O-ring between the holder 143 and the body 110 .
  • the joint body 220 of the joint 210 with a built-in filter has a first inlet/outlet portion 221 and a second inlet/outlet portion 222, and these inlet/outlet portions are connected to the pipe.
  • a communication space 224 is formed inside the joint body 220 .
  • a filter element 240 is arranged inside the communication space 224, and a filter body 241 and a base end through-hole 242b communicating with the opening of the filter body 241 and the second inlet/outlet part 222 are opened to form the opening of the filter body 241.
  • a cylindrical proximal end portion 242 is provided, one end of which is airtightly fixed to the portion and the other end of which is screwed and airtightly joined to the filter element installation female thread 25 formed on the inner circumference of the joint body 220 . It is A flange portion 242 a having a diameter larger than the outer shape of the filter body 241 is formed on the base end portion 242 . A tool engaging portion 243 is formed on the flange portion 242a. A maintenance opening 223 is further formed in the joint body 20 . During maintenance, a tool is inserted through the maintenance opening 223 , the tip of the tool is engaged with the tool engaging portion 243 , and the tool is rotated to attach and detach the filter element 240 .
  • An object of the present invention is to provide a joint with a built-in filter that allows replacement of the filter without removing the joint from the pipe, and facilitates replacement of the filter.
  • the present invention (1) includes a first inlet/outlet portion and a second inlet/outlet portion connected to a pipe through which a fluid flows; a communication space formed to communicate with the first inlet/outlet portion and the second inlet/outlet portion; a joint body including a maintenance opening that communicates with the communication space and is hermetically sealed when maintenance is not performed; A cylindrical filter body, a base end portion having a through hole airtightly communicating with the first inlet/outlet portion or the second inlet/outlet portion, and the other end of the filter body.
  • a seal ring is provided on the outer peripheral surface of the base end portion to airtightly seal a gap between the inner peripheral surface of the communication space and the communication space.
  • the filter element is movably disposed in the communicating space in a slidable state, and the outer peripheral surface of the base end part airtightly seals the gap between the inner peripheral surface of the communicating space. Since the seal ring is provided, airtightness between the joint body and the filter element is not deteriorated even if the filter element moves due to fluctuations in fluid pressure on the upstream or downstream side of the fluid flow path.
  • the maintenance opening has a predetermined opening size so that the filter element can be taken in and out during maintenance, and is arranged at a predetermined position of the joint body. and a filter built-in joint according to the present invention (1), wherein a surface of the distal end portion facing the maintenance opening is provided with locking means for inserting and removing the filter element using a tool.
  • the present invention (3) is the filter built-in joint according to the present invention (1) or (2), wherein the locking means is a screw hole.
  • the locking means is a screw hole, processing is easy and cost can be reduced, and a simple tool can be used as long as a male screw is formed at the tip of the tool. .
  • the present invention (4) comprises a first inlet/outlet portion and a second inlet/outlet portion connected to a pipe through which a fluid flows; a communicating space formed to communicate with the first inlet/outlet portion and the second inlet/outlet portion; a joint body including a maintenance opening that communicates with the communication space and is hermetically sealed when maintenance is not performed; A cylindrical filter body, a base end portion having a through hole airtightly communicating with the first inlet/outlet portion or the second inlet/outlet portion, and the other end of the filter body.
  • the maintenance opening has a predetermined opening size so that the filter element can be taken in and out during maintenance, and is arranged at a predetermined position of the joint body.
  • the filter built-in joint is provided with a connection mechanism for connecting the tip and the projection between the surface of the tip on the side of the maintenance opening and the surface of the projection on the side of the tip. .
  • the protrusion at the tip of the sealing cap inserted into the maintenance opening penetrates into the communication space, and the protrusion and the tip of the filter element are connected by the connecting mechanism. Therefore, since the sealing cap and the filter element are connected to each other without using a tool for inserting and removing the filter element, the filter element can be inserted and removed using the sealing cap.
  • the present invention (5) is the filter built-in joint according to the present invention (4), characterized in that the connecting mechanism has an integral structure in which the tip portion and the projecting portion are integrated.
  • the present invention (5) has an integrated structure in which the tip portion and the protrusion are integrated, the number of parts can be reduced, and the trouble of connecting the tip portion and the protrusion is eliminated.
  • the present invention (6) is characterized in that the connecting mechanism has a male thread formed on one of the tip portion and the projection portion and a female thread formed on the other, and is based on screwing of the male screw and the female screw. It is a joint with a built-in filter according to the present invention (4).
  • one of the tip portion and the projecting portion is formed with a male thread, and the other is formed with a female thread, and the connecting mechanism is based on screwing of the male and female threads. It is possible to put in and take out.
  • the connecting mechanism has a T-shaped protrusion formed on one of the tip portion and the protrusion, and a T-shaped recess to be fitted with the T-shaped protrusion formed on the other,
  • the joint with a built-in filter according to the present invention (4) is characterized by connecting the T-shaped protrusion and the T-shaped recess.
  • a T-shaped projection is formed on one of the tip portion and the protrusion, and a T-shaped recess to be fitted with the T-shaped projection is formed on the other, and the connecting mechanism comprises: Due to the connection between the T-shaped projection and the T-shaped recess, the filter element can be put in and taken out simply and easily.
  • the filter can be replaced without removing the joint from the pipe, facilitating filter replacement.
  • 1 shows a first embodiment of a joint with a built-in filter according to the present invention
  • 2 shows a second embodiment of a joint with a built-in filter according to the present invention
  • 3 shows a third embodiment of a joint with a built-in filter according to the present invention
  • 4 shows a fourth embodiment of a joint with a built-in filter according to the present invention
  • 5 shows a fifth embodiment of a joint with a built-in filter according to the present invention
  • 1 shows a conventional filter built-in joint described in Patent Literature 1
  • 1 shows a conventional filter built-in joint described in Patent Document 2.
  • FIG. 1 shows a first embodiment of a joint with a built-in filter according to the present invention.
  • a joint body 20 of the joint 10 with a built-in filter has a first inlet/outlet portion 21 and a second inlet/outlet portion 22, and these inlet/outlet portions are connected to a pipe.
  • a first inlet/outlet female thread 21a and a second inlet/outlet female thread 22a are used for connection with piping.
  • a communication space 24 is formed inside the joint main body 20, and the communication space 24, the first inlet/outlet portion 21, and the second inlet/outlet portion 22 are formed by a first communication passage 21b and a second communication passage 22b, respectively. are in communication.
  • a filter element 50 is arranged inside the communication space 24 .
  • the filter element 50 has a filter body 51 made of a filter material, and a base end through hole 53 that communicates with the opening of the filter body 51 and the second inlet/outlet part 22 .
  • a proximal end 52 is provided which is hermetically fixed.
  • a base end sealing groove 54 is formed in the outer peripheral surface of the base end 52 , and a base end seal ring 55 is fitted in the base end sealing groove 54 . close to the inner peripheral wall.
  • a tip portion 56 is airtightly disposed in another opening of the filter main body 51 , and a locking means 57 is formed on the left side surface of the tip portion 56 .
  • the locking means 57 is a screw hole. A tool is engaged with this engaging means 57 and the filter element is taken in and out.
  • a maintenance opening 23 is formed on the left surface of the joint body 20 .
  • This maintenance opening 32 is an opening for putting in and taking out the filter element 50 .
  • the maintenance opening 23 has an appropriate opening size and is arranged in an appropriate position.
  • a sealing cap 30 is inserted into the maintenance opening 23 .
  • the sealing cap 30 has a perforated bolt 31 and a cap 36 .
  • the perforated bolt 31 has a small-diameter hole 33, a tapered hole portion 34, and a large-diameter hole 35 formed therein. internal thread 23a.
  • a cap 36 is inserted into the perforated bolt 31.
  • the cap 36 has a small diameter portion 37, a tapered portion 38, a large diameter portion 39 and a projecting portion 40.
  • the projecting portion 40 defines a communication space. 24 penetrates.
  • a seal ring groove 41 is formed on the outer peripheral surface of the projecting portion 40, and a seal ring 42 is arranged in this groove. Since the seal ring 42 is also in close contact with the inner peripheral surface of the communicating space 24, the fluid passing through the first communicating path 21b and the second communicating path 22b does not leak outside from the communicating space 24 other than these communicating paths. There is no
  • the sealing cap 30 is composed of the perforated bolt 31 and the cap 36, so that even if the perforated bolt 31 is turned, the cap 36 is less likely to rotate.
  • the protrusion end face 40a on the right end face of the protrusion 40 is arranged near the left end face of the tip portion 56, and the pressure of the fluid on the side of the second communication passage increases to move the filter element 24 leftward. Even if the projection end face 40a acts as a wall, the filter element 24 does not move leftward any further, and the fluid does not leak outside from the communication space 24 except for the predetermined flow path.
  • a procedure for taking out the filter element 50 from the communication space 24 in the filter built-in joint 10 of Example 1 of FIG. 1 will be described.
  • the fluid flow is interrupted by closing the fluid on-off valve attached to the pipe.
  • the sealing cap 30 is then unscrewed and removed.
  • the small diameter portion 31 of the cap 36 is grasped and pulled out.
  • the retaining means (screw hole) 57 formed on the left end face of the distal end portion 56 of the filter element 50 can be seen from the maintenance opening 23.
  • the filter element 50 can be taken out by screwing it together and pulling it out. When arranging the filter element 50 in the communication space 24, it can be easily arranged by reversing the removal procedure.
  • FIG. 2 shows a second embodiment, which differs from FIG. 1 in that a seal ring groove 41' is formed on the outer peripheral surface of the tip portion 56, and a seal ring 42' is fitted in this seal ring groove 41'.
  • the only difference is that it is included. Even with such a structure, even if the filter element 24 is moved leftward, the projection end surface 40a acts as a wall to prevent the filter element 24 from moving further leftward, and the predetermined distance of the communicating space 24 is maintained. Fluid does not leak outside from any part other than the flow passage.
  • the method of putting in and out the filter element 50 is the same as in the case of the first embodiment.
  • FIG. 3 shows a third embodiment, which differs from FIG. 1 in that the tip portion 56 and the projecting portion 40 are integrated. Because of this integration, the locking means 57 of FIG. 1 are no longer needed and are eliminated. This integration prevents the filter element 50 from laterally moving even when the fluid pressure on the side of the second communication passage 22b increases. Furthermore, the filter element 50 can be easily put in and taken out without using a special tool.
  • a procedure for removing the filter element 50 from the communication space 24 in the filter built-in joint 10 of Example 3 of FIG. 3 will be described.
  • the fluid flow is interrupted by closing the fluid on-off valve attached to the pipe.
  • the sealing cap 30 is then unscrewed and removed.
  • the small diameter portion 37 of the cap 36 is grasped and pulled out. Since the cap 36 and the filter element 50 are integrated, the filter element 50 can be taken out.
  • it can be easily arranged by reversing the removal procedure.
  • FIG. 4 shows a fourth embodiment, which differs from the third embodiment shown in FIG. This means that the locking means (male screw) 57a and the locking means (female screw) 57b are connected. This connection prevents the filter element 50 from laterally moving even when the fluid pressure on the side of the second communication passage 22b increases. Furthermore, the filter element 50 can be easily put in and taken out without using a special tool.
  • a procedure for taking out the filter element 50 from the communication space 24 in the filter built-in joint 10 of Example 4 of FIG. 4 will be described.
  • the fluid flow is interrupted by closing the fluid on-off valve attached to the pipe.
  • the sealing cap 30 is then unscrewed and removed.
  • the small diameter portion 37 of the cap 36 is grasped and pulled out. Since the cap 36 and the filter element 50 are connected only by the engaging means (male screw) 57a and the engaging means (female screw) 57b, the filter element 50 can be easily removed by turning it by hand.
  • the filter element 50 When arranging the filter element 50 in the communication space 24, it can be easily arranged by reversing the removal procedure.
  • FIG. 5 shows a fifth embodiment, which is different from the fourth embodiment shown in FIG.
  • the locking means (female screw) 57b is replaced by the locking means (T-shaped recess) 57d.
  • the locking means (T-shaped recess) 57d is a groove formed in the protrusion end face 40a, and the locking means (T-shaped recess) 57d is opened from the side surface of the protrusion 40 to the locking means (T-shaped recess) 57d. mold projections) 57c can be mated and connected.
  • the engaging means is T-shaped, but it is not necessary to be limited to the T-shaped as long as other shapes can be used for engagement.
  • a procedure for removing the filter element 50 from the communication space 24 in the joint 10 with built-in filter of Example 5 of FIG. 5 will be described.
  • the fluid flow is interrupted by closing the fluid on-off valve attached to the pipe.
  • the sealing cap 30 is then unscrewed and removed.
  • the small diameter portion 37 of the cap 36 is grasped and pulled out. Since the cap 36 and the filter element 50 are connected only by combining the locking means (T-shaped protrusion) 57c and the locking means (T-shaped recess) 57d, if the filter element 50 is laterally displaced, Can be easily removed.
  • the filter element 50 When arranging the filter element 50 in the communication space 24, it can be easily arranged by reversing the removal procedure.
  • the filter can be attached and detached without separating the pipe from the joint, saving time and effort.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Joints With Pressure Members (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
PCT/JP2022/026215 2021-09-07 2022-06-30 フィルタ内蔵継手 Ceased WO2023037730A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2023546795A JP7634298B2 (ja) 2021-09-07 2022-06-30 フィルタ内蔵継手
US18/685,549 US20240353048A1 (en) 2021-09-07 2022-06-30 Joint with built-in filter
DE112022004278.8T DE112022004278T5 (de) 2021-09-07 2022-06-30 Verbindungseinrichtung mit einem eingebauten Filter
KR1020247003912A KR102948631B1 (ko) 2021-09-07 2022-06-30 필터 내장 조인트

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021145648 2021-09-07
JP2021-145648 2021-09-07

Publications (1)

Publication Number Publication Date
WO2023037730A1 true WO2023037730A1 (ja) 2023-03-16

Family

ID=85506472

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/026215 Ceased WO2023037730A1 (ja) 2021-09-07 2022-06-30 フィルタ内蔵継手

Country Status (5)

Country Link
US (1) US20240353048A1 (https=)
JP (1) JP7634298B2 (https=)
KR (1) KR102948631B1 (https=)
DE (1) DE112022004278T5 (https=)
WO (1) WO2023037730A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4674499A1 (en) * 2024-06-28 2026-01-07 Robert Bosch GmbH Filtering unit and fuel supply system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12276291B2 (en) * 2022-11-16 2025-04-15 Hamilton Sundstrand Corporation Valve bore wash filters

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61230714A (ja) * 1985-04-01 1986-10-15 フイルターテツク　インコーポレーテツド プレス嵌めフイルタ
JPH02107310A (ja) * 1988-10-14 1990-04-19 Japan Pionics Co Ltd フィルター
JPH09206535A (ja) * 1996-02-05 1997-08-12 Koganei Corp フィルタエレメント
JP2016155061A (ja) * 2015-02-24 2016-09-01 株式会社キッツエスシーティー 高圧用フィルタ装置とこれを用いた水素ステーション
JP2021089004A (ja) * 2019-12-03 2021-06-10 株式会社フジキン フィルタ内蔵継手

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6778047B2 (ja) 2015-09-28 2020-10-28 株式会社キッツエスシーティー 高圧用フィルタとこれを用いた水素ステーション

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61230714A (ja) * 1985-04-01 1986-10-15 フイルターテツク　インコーポレーテツド プレス嵌めフイルタ
JPH02107310A (ja) * 1988-10-14 1990-04-19 Japan Pionics Co Ltd フィルター
JPH09206535A (ja) * 1996-02-05 1997-08-12 Koganei Corp フィルタエレメント
JP2016155061A (ja) * 2015-02-24 2016-09-01 株式会社キッツエスシーティー 高圧用フィルタ装置とこれを用いた水素ステーション
JP2021089004A (ja) * 2019-12-03 2021-06-10 株式会社フジキン フィルタ内蔵継手

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4674499A1 (en) * 2024-06-28 2026-01-07 Robert Bosch GmbH Filtering unit and fuel supply system

Also Published As

Publication number Publication date
JPWO2023037730A1 (https=) 2023-03-16
KR102948631B1 (ko) 2026-04-03
JP7634298B2 (ja) 2025-02-21
KR20240027122A (ko) 2024-02-29
DE112022004278T5 (de) 2024-08-14
US20240353048A1 (en) 2024-10-24

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