CN102384279B - Single-disk valve - Google Patents
Single-disk valve Download PDFInfo
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- CN102384279B CN102384279B CN2011103630502A CN201110363050A CN102384279B CN 102384279 B CN102384279 B CN 102384279B CN 2011103630502 A CN2011103630502 A CN 2011103630502A CN 201110363050 A CN201110363050 A CN 201110363050A CN 102384279 B CN102384279 B CN 102384279B
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Abstract
The invention relates to the technical field of switching valves used for pneumatic conveying systems, and in particular discloses a single-disk valve which is sealed reversely. The inlet valve body of the single-disk valve is in a cylindrical structure of which the upper end and the lower end are provided with flange disks; a valve rod hole is formed in the flange disk at the lower end of the inlet valve body; the outlet valve body of the single-disk valve is in a funnel-shaped structure of which the upper end and the lower end are provided with flange disks; the flange disk at the upper end of the outlet valve body is matched with the flange disk at the lower end of the inlet valve body; a valve disk is in an inverted conical disk structure of which the edge is a sharp edge; and a valve rod assembly passes through the valve rod hole of the inlet valve body and is arranged between the inlet valve body and the outlet valve body so that the valve rod assembly can drive the valve disk to open or close a channel in the lower end surface of the cylinder of the inlet valve body. In the single-disk valve, the influence on the action of a valve caused by the accumulation and the slag-bonding of materials can be eliminated by a funnel-shaped valve cavity; simultaneously, the single-disk valve is simple in structure and convenient to maintain, and has the characteristics of lighter weight, lower cost and longer service life compared with other material cutout valves such as sealing ball valves and the like in the same specification, hardness and density; and a plurality of single-disk valves can be connected in series or are installed and used by exchanging with other ball valves.
Description
Technical field
The invention belongs to air-transport system switch valve technical field, be specifically related to a kind of single-disk valve of reverse sealing.
Background technique
The plate valve of double disk structure is because it is widely used in industries such as polysilicons from good characteristics such as cleaning, self-grind, self compensations.Polysilicon industry technique General Requirements valve is two way sealed, and treatment media is mainly silica flour.The mobility of silica flour is better, prevented from caking.Using effect and the life-span of plate valve are much better than hard seal ball valve.
But in the air-transport system such as Coal Chemical Industry and power plant and similar operating mode, downstream pressure is large when valve closing, needs oppositely sealing.The medium of processing is coal dust, coal ash etc., although hardness is low, caking easily makes moist.The moushroom valve valve pocket of double disk structure is cylindrical body, relatively easy buildup, and during action, valve disc contacts with buildup, and when caking phenomenon appears in buildup, the action of valve will inevitably be affected.
In the air-transport system of shell SCGP coal gasifying process and other domestic and international Coal Chemical Industry techniques, the feeding valve between tank body, discharge valve, lock slag valve and equilibrium valve are mainly hard seal ball valve.In the dead band, material is easily piled up due to ball valve valve pocket internal memory, causes valve event moment to increase, and is even fully stuck.The abrading section of spheroid is fixed in addition, causes surface treated hardened layer to be destroyed within a short period of time, and generally be no more than half a year in working life of inlet ball valve.The bivalve integral type plate valve of part manufacturer production, with two independently plate valve be incorporated in a valve body, although part has reduced structure weight, in valve, arbitrary cover sealing or moving system lost efficacy and will cause whole valve invalidation, had reduced the reliability of valve.
The valve of power plant's pneumatic ash transmitting system adopts the dome valve of soft seal more, although low price, but the sealing position is easily suffered the wearing and tearing of material and is occurred leaking, during valve closing, dome can suffer washing away of high speed belt ash gas, can make dome groove occur when serious and sealing was thoroughly lost efficacy, causing the system can not pressurize and have to change valve.The life-span of valve is short, and the maintenance cost of system is higher.
Summary of the invention
The object of the present invention is to provide a kind of air-transport system and similar operating mode single-disk valve, can effectively solve the problems such as the buildup that occurs in air-transport system and similar operating mode, stuck, erosion.
technological scheme of the present invention is as follows: a kind of single-disk valve, it comprises the entrance valve body, the outlet valve body, valve rod assembly and valve disc, wherein, the entrance valve body is that the two ends, up and down are with the cylindrical structure of flange plate, and the axis of this cylindrical drum does not overlap with the axis of lower end disc structure flange plate, and have a valve rod hole of the cylindrical hole structure that is parallel to each other with entrance valve body cylindrical drum on entrance valve body lower end flange plate, the outlet valve body is that the two ends, up and down are with the funnel form structure of flange plate, the lower end flange plate of its upper flanges dish and entrance valve body is complementary, outlet valve body lower end cylindrical structure and lower end flange plate thereof are identical with cylindrical drum and the upper flanges dish symmetrical configuration thereof of entrance valve body, and on same axis, valve rod assembly passes the valve rod hole of entrance valve body, and is arranged between entrance valve body and outlet valve body, makes valve rod assembly can drive the passage that valve disc that an edge becomes sharp edge inverted cone disc structure opens or closes entrance valve body cylindrical drum lower end surface.
described valve rod assembly comprises valve shaft, lower guide sleeve and upper guide sleeve, wherein, lower guide sleeve and upper guide sleeve are ladder cylindrical hole structure, lower guide sleeve is arranged in step groove corresponding with entrance valve body valve rod hole in the outlet valve intracoelomic cavity, be equipped with successively above lower guide sleeve connecting plate and on guide sleeve, upper guide sleeve is fixed in entrance valve body valve rod hole, valve shaft passes guide sleeve successively, connecting plate and lower guide sleeve, and be fixedly connected with connecting plate, rocking arm and valve shaft upper end are by quartet connection, and compress by screw and pad, the opposite side of connecting plate is connected with valve disc, valve disc is fitted tightly lower end in entrance valve body cylindrical drum.
Also be provided with ash stop plate B between the right side of described connecting plate and upper guide sleeve, also be provided with ash stop plate C between the right side of connecting plate and lower guide sleeve, and connecting plate and ash stop plate B and ash stop plate C contacted zone have certain degree of finish; The left side of connecting plate is fixedly connected with the sleeve of cylindrical structure, and in sleeve, spring and spring seat is installed successively, and ash stop plate A is installed on spring seat; The upper end of sleeve is placed in the cylinder groove of valve disc lower end, and the spring after compression withstands on the lower end surface of valve disc by spring seat, and the valve disc upper-end surface is fitted tightly on the valve seat of entrance valve body cylindrical drum lower end.
In annular chamber between described valve shaft and entrance valve body upper valve rod hole, filler assembly is installed, and compresses by Gland, realize the sealing to valve rod assembly, wherein, Gland is connected with the entrance valve body by screw bolt and nut B.
Between described entrance valve body and outlet valve body, the valve body pad is housed, and connects compression by stud and nut A.
The end of described rocking arm is connected with the driving mechanism cylinder by bearing pin, and wherein the driving mechanism cylinder is arranged on the support that is fixed on entrance valve body lower end flange plate by bearing.
Be separately installed with wear-resisting lined steel pipe A and lined steel pipe B in the cylindrical drum barrel in described entrance valve body and outlet valve body, and be coated with wearable hard alloy in the funnel form valve pocket of outlet valve body.
The lower end flange plate of the upper flanges dish of described entrance valve body and outlet valve body all has several through holes along circumference, can realize the connected in series of a plurality of single-disk valves.
Remarkable result of the present invention is: the funnel form valve pocket of a kind of single-disk valve middle outlet valve body of the present invention can be eliminated because of solid accumulation, lump on the impact of valve event; Simultaneously, the single-deck structure has reduced action frictional force, has reduced the radial imbalance force of valve rod assembly to the impact of filler assembly, has improved the working life of stem packing assembly; Simultaneously, single-disk valve is simple in structure, and is easy to maintenance, more lightweight than unclassified stores cutting-off valves such as the hard density blocking of same specification valves, cost is low, the life-span is long, and a plurality of single-disk valve can connect, or installs and uses with the exchange of ball valve.
Description of drawings
Fig. 1 is a kind of single-disk valve structural representation shown in the present;
Fig. 2 is A-A sectional drawing in Fig. 1;
Fig. 3 is the plan view of a kind of single-disk valve shown in the present;
Fig. 4 is two single-disk valve cascaded structure schematic diagram of the present invention;
In figure: 1, entrance valve body; 2, outlet valve body; 3, valve rod assembly; 4, filler assembly; 5, spring; 6, ash stop plate A; 7, spring seat; 8, valve disc; 9, sleeve; 10, connecting plate; 11, ash stop plate B; 12, lower guide sleeve; 13, ash stop plate C; 14, upper guide sleeve; 15, Gland; 16, valve body pad; 17, stud; 18, nut A; 19, rocking arm; 20, valve shaft; 21, pad; 22, screw; 23, valve seat; 24, lined steel pipe A; 25, lined steel pipe B; 26, bolt; 27, nut B; 28, driving mechanism cylinder; 29, bearing; 30, bearing pin; 31, support.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
as shown in Fig. 1～4, a kind of single-disk valve, comprise entrance valve body 1, outlet valve body 2, valve rod assembly 3 and valve disc 8, wherein, entrance valve body 1 is that the two ends, up and down are with the cylindrical structure of flange plate, upper flanges rim even circumferential has some through holes, and lower end flange plate axis and entrance valve body 1 cylindrical drum axis are inconsistent, and has the valve rod hole of the cylindrical hole structure that is parallel to each other with entrance valve body 1 cylindrical drum on the flange plate of lower end, outlet valve body 2 is that the two ends, up and down are with the funnel form structure of flange plate, the lower end flange plate of its upper flanges dish and entrance valve body 1 is complementary, outlet valve body 2 lower end cylindrical structures and lower end flange plate are identical with cylindrical drum and the upper flanges dish structure of entrance valve body 1, and on same axis, valve rod assembly 3 comprises valve shaft 20, lower guide sleeve 12 and upper guide sleeve 14, wherein, lower guide sleeve 12 and upper guide sleeve 14 are ladder cylindrical hole structure, lower guide sleeve 12 is arranged in step groove corresponding with entrance valve body 1 valve rod hole in outlet valve body 2 inner chambers, above lower guide sleeve 12, ash stop plate C13 is installed successively, connecting plate 10, ash stop plate B11 and upper guide sleeve 14, upper guide sleeve 14 is fixed in entrance valve body 1 valve rod hole, between entrance valve body 1 and outlet valve body 2, valve body pad 16 is housed, and connect compression by stud 17 and nut A18, connecting plate 10 and lower guide sleeve 12 are pressed between entrance valve body 1 and outlet valve body 2, and realization is to the sealing of single-disk valve valve body, valve shaft 20 stretches into valve rod hole, pass successively guide sleeve 14, connecting plate 10 and lower guide sleeve 12, and be fixedly connected with connecting plate 10, filler assembly 4 is installed in the annular chamber between valve shaft 20 and valve rod hole, and compress by Gland 15, the sealing of realization to valve rod assembly 3, wherein, Gland 15 is connected with entrance valve body 1 with nut B27 by bolt 26, rocking arm 19 with valve shaft 20 upper ends by quartet connection, and compress by screw 22 and pad 21, end of rocking arm 19 is connected with driving mechanism cylinder 28 on being fixed on support 31 by bearing pin 30, wherein, support 31 is fixed on entrance valve body 1 lower end flange plate, driving mechanism cylinder 28 is fixed on support 31 by bearing 28, and driving mechanism cylinder 28 is swung up and down around bearing 28, valve disc 8 has the inverted cone disk of cylinder groove for the lower end, and the edge of valve disc 8 is sharp edge, and material is had scraping action, connecting plate 10 right sides and ash stop plate B11 and ash stop plate C13 contacted zone have higher degree of finish, can reduce the surface friction drag that connecting plate 10 produces when rotating with ash stop plate B11 and ash stop plate C13, the left side of connecting plate 10 is fixedly connected with the sleeve of cylindrical structure 9, and spring 5 and spring seat 7 be installed successively in sleeve 9, and ash stop plate A6 is installed on spring seat 7, prevents that material from entering in spring 5, the upper end of sleeve 9 is placed in the cylinder groove of valve disc 8 lower ends, and the spring 5 after compression withstands on the lower end surface of valve disc 8 by spring seat 7, make connecting plate 10 drive valve discs 8 when valve shaft 20 rotates, valve disc 8 fits tightly on the valve seat 23 of entrance valve body 1 cylindrical drum lower end, be separately installed with wear-resisting lined steel pipe A24 and lined steel pipe B25 in the cylindrical drum barrel in entrance valve body 1 and outlet valve body 2, and be coated with wearable hard alloy in the funnel form valve pocket of outlet valve body 2.
A kind of single-disk valve specific works process of the present invention is: electronic, surge or the type hand driving mechanism drives rocking arm 19 and swings; the valve shaft that rocking arm 19 drives in valve components 3 rotates; thereby by connecting plate 10; drive valve disc 8 and rotate centered by valve shaft 20, realize the switch motion of 8 pairs of entrance valve body 1 lower value seats 23 of valve disc; Funnel form valve pocket in outlet valve body 2 can effectively be avoided the accumulation of material, and the sharp edge of valve disc 8 can have scraping action to material, prevents that material from entering valve disc 8 and the formed sealing surface of valve seat 23; Ash stop plate B11 between upper guide sleeve 14 and connecting plate 10, and descend the ash stop plate C13 between guide sleeve 12 and connecting plate 10 can avoid material to enter in guide sleeve 14 and lower guide sleeve 12, cause the scuffing of guide sleeve 14, lower guide sleeve 12 and valve shaft 20.
A kind of single-disk valve of the present invention is identical with the structure length of same specification American Standard ball valve, can realize the Alternate with ball valve, simultaneously, can two identical this kind single-disk valve series connection use, and after one section of on-line operation, will two the single-disk valve Alternates in up and down, the working life of improving valve.
Claims (7)
1. single-disk valve, it is characterized in that: it comprises entrance valve body (1), outlet valve body (2), valve rod assembly (3) and valve disc (8), wherein, entrance valve body (1) is that the two ends, up and down are with the cylindrical structure of flange plate, and the axis of this cylindrical drum does not overlap with the axis of lower end disc structure flange plate, and have a valve rod hole of the cylindrical hole structure that is parallel to each other with entrance valve body (1) cylindrical drum on the flange plate of entrance valve body (1) lower end, outlet valve body (2) is that the two ends, up and down are with the funnel form structure of flange plate, the lower end flange plate of its upper flanges dish and entrance valve body (1) is complementary, outlet valve body (2) lower end cylindrical structure and lower end flange plate thereof are identical with cylindrical drum and the upper flanges dish symmetrical configuration thereof of entrance valve body (1), and on same axis, valve rod assembly (3) passes the valve rod hole of entrance valve body (1), and be arranged between entrance valve body (1) and outlet valve body (2), make valve rod assembly (3) can drive the passage that valve disc (8) that an edge becomes sharp edge inverted cone disc structure opens or closes entrance valve body (1) cylindrical drum lower end surface, described valve rod assembly (3) comprises valve shaft (20), lower guide sleeve (12) and upper guide sleeve (14), wherein, lower guide sleeve (12) and upper guide sleeve (14) are ladder cylindrical hole structure, lower guide sleeve (12) is arranged in step groove corresponding with entrance valve body (1) valve rod hole in outlet valve body (2) inner chamber, connecting plate (10) and upper guide sleeve (14) are installed above lower guide sleeve (12) successively, upper guide sleeve (14) is fixed in entrance valve body (1) valve rod hole, valve shaft (20) passes guide sleeve (14) successively, connecting plate (10) and lower guide sleeve (12), and be fixedly connected with connecting plate (10), rocking arm (19) with valve shaft (20) upper end by quartet connection, and compress by screw (22) and pad (21), the opposite side of connecting plate (10) is connected with valve disc (8), valve disc (8) is fitted tightly lower end in entrance valve body (1) cylindrical drum.
2. a kind of single-disk valve according to claim 1, it is characterized in that: also be provided with ash stop plate B(11 between the right side of described connecting plate (10) and upper guide sleeve (14)), also be provided with ash stop plate C(13 between the right side of connecting plate (10) and lower guide sleeve (12)), and connecting plate (10) and ash stop plate B(11) and ash stop plate C(13) contacted zone has certain degree of finish; The left side of connecting plate (10) is fixedly connected with the sleeve (9) of cylindrical structure, and spring (5) and spring seat (7) are installed in sleeve (9) successively, and on spring seat (7), ash stop plate A(6 is installed); The upper end of sleeve (9) is placed in the cylinder groove of valve disc (8) lower end, and the spring (5) after compression withstands on the lower end surface of valve disc (8) by spring seat (7), and valve disc (8) upper-end surface is fitted tightly on the valve seat (23) of entrance valve body (1) cylindrical drum lower end.
3. a kind of single-disk valve according to claim 1 and 2, it is characterized in that: in the annular chamber between described valve shaft (20) and entrance valve body (1) upper valve rod hole, filler assembly (4) is installed, and compress by Gland (15), the sealing of realization to valve rod assembly (3), wherein, Gland (15) is connected with nut B(27 and is connected with entrance valve body (1) by bolt (26).
4. a kind of single-disk valve according to claim 1, is characterized in that: between described entrance valve body (1) and outlet valve body (2), valve body pad (16) is housed, and passes through stud (17) and nut A(18) the connection compression.
5. a kind of single-disk valve according to claim 1 and 2, it is characterized in that: the end of described rocking arm (19) is connected with driving mechanism cylinder (28) by bearing pin (30), and wherein driving mechanism cylinder (28) is arranged on the support (31) that is fixed on entrance valve body (1) lower end flange plate by bearing (28).
6. a kind of single-disk valve according to claim 1 and 2, it is characterized in that: be separately installed with wear-resisting lined steel pipe A(24 in the cylindrical drum barrel in described entrance valve body (1) and outlet valve body (2)) and lined steel pipe B(25), and be coated with wearable hard alloy in the funnel form valve pocket of outlet valve body (2).
7. a kind of single-disk valve according to claim 1 and 2 is characterized in that: the lower end flange plate of the upper flanges dish of described entrance valve body (1) and outlet valve body (2) all has several through holes along circumference, can realize the connected in series of a plurality of single-disk valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103630502A CN102384279B (en) | 2011-11-16 | 2011-11-16 | Single-disk valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103630502A CN102384279B (en) | 2011-11-16 | 2011-11-16 | Single-disk valve |
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| CN102384279A CN102384279A (en) | 2012-03-21 |
| CN102384279B true CN102384279B (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103630502A Active CN102384279B (en) | 2011-11-16 | 2011-11-16 | Single-disk valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925314A (en) * | 2016-04-22 | 2016-09-07 | 北京航天动力研究所 | Pressurized conveying device and method for powdered coal |
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| CN103511736A (en) * | 2013-09-18 | 2014-01-15 | 浙江固特气动机械有限公司 | Disk valve capable of repairing sealing performance continuously and method thereof |
| CN104819310A (en) * | 2015-04-24 | 2015-08-05 | 四川省四维环保设备有限公司 | Self-tightening material cut-off valve |
| CN106010660A (en) * | 2016-05-13 | 2016-10-12 | 北京航天动力研究所 | Dry slag gasification device and method |
| CN105864444A (en) * | 2016-06-20 | 2016-08-17 | 江沣 | Disc valve |
| CN107575603B (en) * | 2017-10-11 | 2023-05-12 | 江苏金旺智能科技有限公司 | Multi-station valve group and sealing three-way valve thereof |
| CN108869772A (en) * | 2018-08-07 | 2018-11-23 | 陕西瑞莱自控设备有限公司 | A kind of dedicated hard sealing lock hopper moushroom valve of coal chemical industry |
| CN109555864B (en) * | 2018-12-11 | 2019-11-26 | 云南大为化工装备制造有限公司 | A kind of manufacture craft of coal gasifier slag lock |
| CN113531158B (en) * | 2021-07-30 | 2023-03-10 | 九通集团有限公司 | Three-way disc valve for polycrystalline silicon |
| CN113915397A (en) * | 2021-09-24 | 2022-01-11 | 苏州中仪精博流体控制有限公司 | Novel wear-resisting pneumatic disc valve |
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| GB1388922A (en) * | 1971-03-08 | 1975-03-26 | Singer Co | Vertical jet breather valve |
| CN201093088Y (en) * | 2007-09-05 | 2008-07-30 | 四川省科能工业设备制造有限公司 | Grinding disc type material handling ceramic valve |
| CN201496584U (en) * | 2009-01-21 | 2010-06-02 | 江苏苏阀高压阀门有限公司 | Wear resistant disc valve |
| KR101010900B1 (en) * | 2010-10-20 | 2011-01-25 | (주) 삼진정밀 | Air valve of discharge valve |
| CN202371191U (en) * | 2011-11-16 | 2012-08-08 | 北京航天动力研究所 | Single disc valve |
-
2011
- 2011-11-16 CN CN2011103630502A patent/CN102384279B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1388922A (en) * | 1971-03-08 | 1975-03-26 | Singer Co | Vertical jet breather valve |
| CN201093088Y (en) * | 2007-09-05 | 2008-07-30 | 四川省科能工业设备制造有限公司 | Grinding disc type material handling ceramic valve |
| CN201496584U (en) * | 2009-01-21 | 2010-06-02 | 江苏苏阀高压阀门有限公司 | Wear resistant disc valve |
| KR101010900B1 (en) * | 2010-10-20 | 2011-01-25 | (주) 삼진정밀 | Air valve of discharge valve |
| CN202371191U (en) * | 2011-11-16 | 2012-08-08 | 北京航天动力研究所 | Single disc valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105925314A (en) * | 2016-04-22 | 2016-09-07 | 北京航天动力研究所 | Pressurized conveying device and method for powdered coal |
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| CN102384279A (en) | 2012-03-21 |
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Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing Inst. of Aerospace Dynamics Patentee after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing Inst. of Aerospace Dynamics Patentee before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corp. |