WO2017191850A1 - 流量調節弁 - Google Patents

流量調節弁 Download PDF

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Publication number
WO2017191850A1
WO2017191850A1 PCT/JP2017/018495 JP2017018495W WO2017191850A1 WO 2017191850 A1 WO2017191850 A1 WO 2017191850A1 JP 2017018495 W JP2017018495 W JP 2017018495W WO 2017191850 A1 WO2017191850 A1 WO 2017191850A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve body
cylindrical valve
slide block
flow rate
opening area
Prior art date
Application number
PCT/JP2017/018495
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
進 森崎
知佳 宮保
遼太朗 佐橋
Original Assignee
ダイヤモンドエンジニアリング株式会社
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 ダイヤモンドエンジニアリング株式会社 filed Critical ダイヤモンドエンジニアリング株式会社
Priority to KR1020177032681A priority Critical patent/KR101939356B1/ko
Priority to CN201780001871.7A priority patent/CN107923545B/zh
Publication of WO2017191850A1 publication Critical patent/WO2017191850A1/ja

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    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
    • F16K13/02—Other constructional types of cut-off apparatus; Arrangements for cutting-off with both sealing faces shaped as small segments of a cylinder and the moving member pivotally mounted
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/32—Means for additional adjustment of the rate of flow

Definitions

  • the present invention is a flow rate capable of controlling the flow rate of the granular material by rotating a cylindrical valve body having a flow rate adjusting groove formed on the surface of the cylinder so that the granular material can pass around the center of the circle. It relates to a control valve.
  • the present invention relates to a flow rate control valve suitable for being installed in the middle of a thin pipe such as a branch pipe and performing highly accurate flow rate control.
  • the flow rate of the powder particles and the like is such that the area of the passage formed by the flow rate control groove is determined by rotating a pair of cylindrical valve bodies in an opposing direction with a substantially parallel rotation axis. It can be controlled by changing it.
  • FIG. 9 is a perspective view showing a conventional flow rate control valve 21 disassembled.
  • a flow rate adjusting groove 23 is formed on the surface of the pair of cylindrical valve bodies 22 so as to face each other.
  • the cylindrical valve body 22 is protected by a valve body case 24, and a granular material inflow passage 25 is provided above it, and a granular material discharge passage 26 is provided below it.
  • the granular material or the like introduced from the granular material inflow path 25 passes through the passage formed by the flow rate adjusting groove 23 and is discharged from the granular material discharge path 26.
  • the cylindrical valve body 22 is held by a valve body bearing 28 on the opposite side of the driving device 27 and the driving device 27.
  • the cylindrical valve body 22 is connected to a driving device 27, and by rotating according to the rotation of the driving device 27, the area of the passage formed by the flow rate adjusting groove 23 can be changed to adjust the flow rate.
  • FIG. 10 is a perspective view (A) showing a pair of cylindrical valve bodies 22 and 22 constituting a conventional flow control valve, and a view (B) seen from above.
  • a cutout groove 23 formed in the axial direction along the circumference of the cylindrical valve body is formed on the surface of the cylindrical valve body 22.
  • the cylindrical valve body 22 is designed to adjust the passing amount of the granular material and the like by changing the opening area of the passage port where the cylindrical valve body 22 contacts by synchronously rotating the cylindrical valve body 22 in the opposite directions along the rotation axis 29. ing.
  • wear occurs on the contact surface, or, as shown in FIG. May generate a large load.
  • a rotary control valve in which a gap is provided without contacting two cylindrical valve bodies has also been proposed (see, for example, Patent Document 4).
  • the flow rate control valve provided with a gap without contacting the two cylindrical valve bodies as described above has the following problems. That is, if there is a gap between the pair of cylindrical valve bodies, the flow rate control error increases. The error does not matter so much when it is used where the pipe diameter is large (about 60 ⁇ or more) like the main pipe, but when it is used where the pipe diameter is relatively thin (about 30 ⁇ ) like the branch pipe, The error cannot be ignored. Therefore, in a flow control valve used in the middle of a branch pipe, a gap cannot be provided between a pair of cylindrical valve bodies. happenss.
  • the present invention has been made in view of the above-described problems, and it is difficult for clogging to occur even when two valve bodies are brought into contact with each other.
  • Another object of the present invention is to provide a flow control valve having a structure that can quickly remove rice cracker-like foreign matter.
  • a flow control valve includes a cylindrical valve body in which a flow control groove is formed so that powder particles can pass through a side surface, a slide block having at least one plane,
  • a flow control valve comprising a case for accommodating the cylindrical valve body and the slide block, wherein the slide block is fixed to the case via an elastic body, and a side surface of the cylindrical valve body and the flat surface are
  • the flow rate adjusting groove abuts by being pressed by an elastic body, and the flow rate adjusting groove is provided in a notch shape in the direction of the center axis of the cylindrical valve body from the circumferential side of the side surface of the cylindrical valve body.
  • the flow control valve of the present invention since only one cylindrical valve body rotates, it is easy to control, and the cylindrical valve body and the flat surface of the slide block are pressed against each other by the elastic body. Therefore, even if the gap is not generated and the granular material is bitten, the slide block moves backward by the deformation of the elastic body, so that the rotation of the cylindrical valve body is not hindered.
  • FIG. 3 is a sectional view taken along line A-A ′ in FIG. 2.
  • the shape of the passage part such as the granular material formed by the cylindrical valve body of the flow rate control valve according to the present invention and the flat surface of the slide block, the opening area corresponding to the opening area and the area of the passage part, the rotation of the cylindrical valve body It is the table
  • the relationship between the rotation angle and opening area in the Example of this invention is shown with the graph. It is the figure which showed the modification of the Example of this invention.
  • FIG. 1 is a perspective view showing an exploded state of a flow rate control valve 1 according to the present invention.
  • a flow rate adjusting groove (hereinafter referred to as “groove”) 3 is formed on the surface of the cylindrical valve body 2, and one plane of the slide block 4 is pressed by the reaction force of the side surface of the cylindrical valve body 2 and the elastic body 5. Is in contact.
  • the slide block 4 is fixed to the case 6 via an elastic body 5 so as to be slidable back and forth.
  • the elastic body 5 is preferably a compression spring, but may be a rubber or a leaf spring.
  • a granular material inflow passage (hereinafter referred to as “inflow passage”) 7 is provided above the passage formed by the flow rate adjusting groove 3 of the cylindrical valve body 2 and the flat surface of the slide block 4.
  • a granular material discharge path (hereinafter referred to as “discharge path”) 8 is installed.
  • the granular material or the like introduced from the inflow path 7 passes through the passage portion formed by the groove 3 and is discharged from the discharge path 8.
  • the cylindrical valve body 2 is held by a valve body bearing 10 on the opposite side of the driving device 9 and the driving device 9.
  • the cylindrical valve body 2 is connected to the driving device 9, and by rotating according to the rotation of the driving device 9, the area of the passage portion formed by the groove 3 can be changed to adjust the flow rate.
  • the driving device 9 is controlled by control means (for example, a computer) not shown.
  • FIG. 2 is a perspective view showing the cylindrical valve body 2 and the slide block 4 constituting the flow rate control valve according to the present invention.
  • the slide block 4 is fixed to a case (not shown) via an elastic body 5.
  • a notch-shaped groove 3 formed in the axial direction along the circumference of the cylindrical valve body is formed.
  • a processing method for forming the groove 3 there is a method of cutting the groove 3 by gradually rotating the cylindrical valve body 2 while cutting the cylindrical valve body 2 using a rotating cylindrical reamer or conical reamer. At this time, the depth and width of the groove 3 can be adjusted while changing the position of the reamer. Further, three-dimensional processing can be performed by a multi-axis control processing machine regardless of cutting processing such as a reamer.
  • the surface of the groove 3 needs to be a smooth surface in order to improve fluidity.
  • the radius of the cylindrical valve body 2 can be appropriately selected depending on the flow rate of the target powder or the like, and examples thereof include 50 mm to 150 mm.
  • the length of the cylindrical valve body 2 is preferably 2 to 4 times the maximum width of the groove 3 provided. When it is less than 2 times, leakage of powder and the like tends to occur, which is not preferable.
  • the cross-sectional shape of the groove 3 formed in the cylindrical valve body 2 is a semicircular shape or a shape in which an ellipse is halved (like the shape of a track in an athletic field is halved).
  • a passage portion is formed by the plane of the slide block 4 facing each other.
  • the depth of the groove 3 can be appropriately selected depending on the target flow rate, but the maximum depth is preferably 10 to 70% of the radius of the cylindrical valve body 2. If the depth exceeds 70%, the change of the opening area with respect to the rotation angle becomes excessive, and it becomes difficult to control the flow rate having a linear proportional relationship with the rotation angle.
  • a material having excellent wear resistance particularly when handling a wearable material such as a granular material.
  • a material having excellent machinability a carbon steel for machine structure, for example, a base material such as S40C, S45C, S50C or S55C can be preferably used, but other materials are considered in consideration of the characteristics of the granular material to be handled. May be used.
  • cemented carbides mainly composed of tungsten carbide and cobalt as defined by C30 V30 and V40 of the Cemented Carbide Tool Association (CIS) have excellent wear resistance and can be preferably used.
  • a surface coating may be performed with a hard coating of 30 ⁇ m to 100 ⁇ m by hard chrome plating. Furthermore, it is particularly preferable from the viewpoint of improving the wear resistance to dispose an inorganic material such as tungsten carbide-based coating, gray alumina-based coating, chromia-based coating, Hastelloy-based coating, etc. by a thermal spraying treatment with a thickness of 200 ⁇ m to 500 ⁇ m.
  • a ceramic-based surface film is preferable. For example, alumina ceramic or zirconia ceramic can be used. Further, when an inorganic powder is handled, diamond coating or the like may be performed.
  • the slide block 4 and the cylindrical valve body 2 are always pressed against and brought into contact with each other by the reaction force of the compression spring, so that the contact surface between the slide block 4 and the cylindrical valve body 2 is worn.
  • wear can be suppressed by appropriately adjusting the strength of the compression spring 5.
  • the type of the granular material in which the flow control valve according to the present invention is used is not particularly limited, and examples thereof include organic or inorganic granular materials such as limestone, quicklime, coal, iron ore and the like.
  • the particle size of the usable granular material can be selected as appropriate, but the average particle size is preferably in the range of 50 to 150 ⁇ m from the viewpoint of fluidity and occlusion.
  • the solid-gas ratio (weight ratio of the solid component to the gas component) of the granular material can be selected as appropriate, but is preferably about 10 to 80, for example.
  • FIG. 3 is a view for explaining the structure of the cylindrical valve body 2 and the slide block 4, which are the main parts of the flow rate control valve according to the present invention.
  • 3A is a cross-sectional view taken along the line A-A ′ of FIG.
  • a groove 3 is formed in the cylindrical valve body 2, and the slide block 4 is fixed to the case 6 via an elastic body 5. Further, since the slide block 4 is pushed in the direction of the arrow X by the reaction force of the elastic body 5, it always comes into contact with the cylindrical valve body 2.
  • FIG. 3A shows the case where the rotation angle ⁇ is 24 degrees, but in this embodiment, the opening of the passage portion (see FIG. 3B) increases as the rotation angle ⁇ of the cylindrical valve body 2 increases.
  • a section in which the groove 3 is provided so that the area increases almost linearly is called a control section.
  • a predetermined angle (this implementation) is determined from the maximum rotation angle (36 degrees in this embodiment) of the control section.
  • the section in which the groove 3 is provided so that the opening area becomes the maximum when it has advanced is called an open section.
  • FIG. 3B shows a view of the cylindrical valve body 2 and the slide block 4 shown in FIG. 2 as viewed from directly above. It shows that a passage portion through which the granular material passes is formed by the groove 3 formed in the cylindrical valve body 2 and the flat surface of the slide block 4.
  • a groove having a semicircular cross section along the direction in which the granular material passes (the direction from the upper side to the lower side in FIG. 3A). 11 is provided. The reason why the groove 11 is provided is to prevent the powder particles from being clogged by preventing the opening area of the passage portion from becoming zero even when the rotation angle ⁇ is 0 degree.
  • FIG. 4 shows the shape of the passage part such as the granular material formed by the cylindrical valve body 2 of the flow rate control valve 1 and the plane of the slide block 4 according to the present invention, the opening area corresponding to the opening area and area of the passage part.
  • the opening diameter at a rotation angle of 0 degree is equivalent to 6 mm, so the radius of the groove 11 in FIG. 3B is 3 mm.
  • the maximum diameter of the granular material is about 1 mm, and it is said that clogging does not occur if the opening diameter of the passage part is 5 times or more. Therefore, the opening diameter at a rotation angle of 0 degree is 3 mm in radius. If it is (6 mm ⁇ ), it is considered that there is no problem.
  • the opening area in the open section is maximized when the rotation angle is 90 degrees, and the area is about 831 mm 2 .
  • the maximum value of the opening area in the control section is about 130 mm 2 when the rotation angle is 36 degrees. Therefore, the maximum value of the opening area in the open section is about 6.4 times the maximum value of the opening area in the control section. In general, if it is twice or more, it is considered that there is no problem in eliminating clogging.
  • FIG. 5 is a graph showing the relationship between the rotation angle ⁇ of the cylindrical valve body 2 and the opening area of the passage portion in this embodiment.
  • the data shown in the table of FIG. 4 was used.
  • the rotation angle ⁇ and the opening area of the passage portion are in a substantially linear proportional relationship.
  • FIG. 6 is a view showing a modification of the embodiment of the flow control valve 1 according to the present invention.
  • the difference from the embodiment shown in FIG. 3 is a point where the opening area of the open section (see FIG. 3) of the cylindrical valve body 2 is maximized (where the rotation angle is 90 degrees), and the groove 3 is provided. It is only the point which provided the protrusion 12 in the location (refer FIG.7 (B) mentioned later) which is not.
  • FIG. 7 is a diagram showing an operation state in a modification of the present invention.
  • FIG. 7A shows a cross-sectional view along the line AA ′ in FIG. 2 when the rotation angle is 90 degrees.
  • the protrusion 12 causes the slide block 4 to retreat in a direction perpendicular to the central axis OO ′ of rotation of the cylindrical valve body 2 (the arrow Y direction in the figure).
  • the gap Z between the cylindrical valve body 2 and the slide block 4
  • foreign matter sandwiched between the cylindrical valve body 2 and the slide block 4 can be discharged.
  • FIG. 7B shows a view of the cylindrical valve body 2 and the slide block 4 shown in FIG. 2 as viewed from directly above.
  • the slide block 4 is retracted in the direction of the arrow Y by the projection 12 provided on the cylindrical valve body 2, and a state in which a gap Z is generated between the cylindrical valve body 2 and the slide block 4 is shown.
  • FIG. 8 is a diagram showing another modification of the embodiment of the present invention.
  • the portion (4a in the figure) including at least the portion of the flat surface of the slide block 4 that contacts the side surface of the cylindrical valve body 2 is the material of the portion other than 4a (4b in the figure) of the slide block 4. It is a point made of a different material.
  • the material of the 4a portion is characterized by being harder than the material of the 4b portion.
  • Flow control valve 2 Cylindrical valve body 3: Flow control groove 4: Slide block 5: Elastic body 6: Case 7: Inflow path 8: Discharge path 9: Drive device 10: Valve body bearing 11: Groove 12: Projection

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)
  • Chutes (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Taps Or Cocks (AREA)
  • Lift Valve (AREA)
PCT/JP2017/018495 2016-08-05 2017-05-17 流量調節弁 WO2017191850A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020177032681A KR101939356B1 (ko) 2016-08-05 2017-05-17 유량 조절 밸브
CN201780001871.7A CN107923545B (zh) 2016-08-05 2017-05-17 流量调节阀

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-154588 2016-08-05
JP2016154588A JP6057448B1 (ja) 2016-08-05 2016-08-05 流量調節弁

Publications (1)

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WO2017191850A1 true WO2017191850A1 (ja) 2017-11-09

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Application Number Title Priority Date Filing Date
PCT/JP2017/018495 WO2017191850A1 (ja) 2016-08-05 2017-05-17 流量調節弁

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JP (1) JP6057448B1 (ko)
KR (1) KR101939356B1 (ko)
CN (1) CN107923545B (ko)
TW (1) TWI649508B (ko)
WO (1) WO2017191850A1 (ko)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963484A (ja) * 1982-10-05 1984-04-11 石川島播磨重工業株式会社 粉粒体の流量制御弁
JPH06294473A (ja) * 1993-04-01 1994-10-21 Daiyamondo Eng Kk 回転式調節弁

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380475A (en) * 1965-06-24 1968-04-30 O B Armstrong & Son Gate valve
JPS53138517A (en) 1977-05-10 1978-12-04 Nippon Steel Corp Flow quantity regulating valve
JPS5618172A (en) 1979-07-20 1981-02-20 Kubota Ltd Flow control valve
JPS5618171A (en) * 1979-07-20 1981-02-20 Kubota Ltd Flow control valve
JPS5618174A (en) * 1979-07-23 1981-02-20 Kubota Ltd Flow rate control valve
JPS62200080A (ja) * 1986-02-28 1987-09-03 Nippon Kokan Kk <Nkk> ロ−タリ弁
JP3084210B2 (ja) * 1995-06-22 2000-09-04 株式会社巴技術研究所 バタフライ弁のシートリング
JP2954926B1 (ja) * 1998-04-16 1999-09-27 平田バルブ工業株式会社 流量調整弁
JP3375913B2 (ja) * 1999-08-31 2003-02-10 富山化学工業株式会社 開閉弁構造及び該開閉弁構造を備えた開閉弁装置
US7770867B2 (en) * 2004-11-22 2010-08-10 Dezurik, Inc. Plug valve with flow area equal to or greater than the flow area of the connected piping
EP1808623A1 (en) * 2006-01-11 2007-07-18 Paul Wurth S.A. Flow control valve for fluidized material
JP5520244B2 (ja) * 2011-02-21 2014-06-11 ダイヤモンドエンジニアリング株式会社 粉体供給装置、及び、粉体供給方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5963484A (ja) * 1982-10-05 1984-04-11 石川島播磨重工業株式会社 粉粒体の流量制御弁
JPH06294473A (ja) * 1993-04-01 1994-10-21 Daiyamondo Eng Kk 回転式調節弁

Also Published As

Publication number Publication date
JP2018021645A (ja) 2018-02-08
TW201805557A (zh) 2018-02-16
KR20180062980A (ko) 2018-06-11
KR101939356B1 (ko) 2019-01-16
JP6057448B1 (ja) 2017-01-11
TWI649508B (zh) 2019-02-01
CN107923545B (zh) 2019-01-04
CN107923545A (zh) 2018-04-17

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