CN101358655B - Rectangular isolation wind valve with safety position - Google Patents
Rectangular isolation wind valve with safety position Download PDFInfo
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- CN101358655B CN101358655B CN2008101986101A CN200810198610A CN101358655B CN 101358655 B CN101358655 B CN 101358655B CN 2008101986101 A CN2008101986101 A CN 2008101986101A CN 200810198610 A CN200810198610 A CN 200810198610A CN 101358655 B CN101358655 B CN 101358655B
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Abstract
The invention provides a rectangle isolating air valve with a safe position; the body of the valve is a rectangle framework surrounded by the manual welding of a short side plate I and a short side plate II the two faces of which are corresponding as well as two a long side plate; besides, the inner sides of the short side plate I, the short side plate II and the long side plate are welded with a valve seat and provided with a seal ring; the bracket of a drive device is welded on the long side plate; a limiting mechanism is connected on the two corresponding positions of the short side plates by bolts; two discs are arranged between the short side plates and the long side plate; one end of a spring is hung on the fixing hole of the limiting mechanism; the other end is hung on a fixing hole specially arranged on the discs; the bracket and the drive device are connected by a pin roll; a winch I and a winch II are respectively fixed on the shaft; a connection rod and the winches are connected by pin rolls; a connection rod mechanism and the drive device are connected in a thread way; the long side plate and a supporting panel I as well as the long side plate and a supporting panel II are connected by bolts; shaft fixing plate are respectively arranged on the supporting panel I and the supporting panel II. The rectangle isolating air valve with a safe position of the invention has the functions of still maintaining the safe position when in a closed state and being reliably sealed when being closed.
Description
Technical field:
The present invention is a kind of special valve that medium is isolated that is used for the industrial ventilation system, and it can pass through double-acting cylinder, straight stroke valve electronic (manually) device drives.The opening and closing time of valve is 2 seconds when adopting this valve of air cylinder driven.Valve is in closed position, even when running out of steam the source, valve still remains on the closed position of valve, and this valve Safety function has satisfied the design of industrial ventilation system reliable operation.The medium that this series of valves is suitable for is the air of air, coal gas, pollution etc., working pressure≤0.005MPa, operating temperature≤150 ℃, the specification 200 * 270～2000 * 1960 of valve.
Background technique:
The airtight separating valve of industrial ventilation system employing at present mostly is the circular secondary off-centre of Electric actuator driving or the valve of three eccentric butterfly valve structure.Rectangular duct is carried out the reducer pipe that closed type is isolated needs to adopt rectangle change circle, still adopt airtight butterfly valve that ventilation duct is isolated, cause pipe resistance to increase.These valves source valve that runs out of steam when all not possessing closed position still keeps the function of original position.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of have still keep the function of home when being in closed condition and reliable sealing rectangular isolation wind valve when closing.
For achieving the above object, technological scheme provided by the invention is: a kind of rectangular isolation wind valve with home, include valve body, butterfly plate, axle, linkage mechanism, spring, seal ring, position-limit mechanism, bearing unit, drive unit, valve body is to be welded to each other and the rectangular frame that surrounds by the short side plate one of two sides correspondence, short side plate two and long side plate, and the inboard welding seat of short side plate one, short side plate two and long side plate and seal ring is installed; Short side plate two and long side plate are provided with two bearing supports, welding drive unit support on the long side plate; Connect position-limit mechanism with bolt on short side plate two corresponding positions, two butterfly plates are set between short side plate two and the long side plate, axle passes the butterfly plate two ends and is arranged in bearing support on short side plate two and the long side plate, again with bolt connection upper bearing (metal) assembly; Load onto spring, spring one end hangs over the position-limit mechanism fixed hole, and the other end hangs over the ad hoc fixed hole of butterfly plate; Connect support and drive unit with bearing pin; Crank one and crank two are separately fixed on the axle, and connecting rod is connected with bearing pin with crank, and linkage mechanism is threaded with drive unit; Connect long side plate and supporting faceplate one, long side plate and supporting faceplate two with bolt, difference installation shaft fixed plate on supporting faceplate one and supporting faceplate two.
The present invention adopts leafy structural type, the linkage mechanism that the driving of blade had not only guaranteed the blade synchronization action by one but also had a reinforcement is realized, this linkage mechanism has guaranteed in the dead center position of valve closing position linkage mechanism, realizes the function of the maintenance home of valve; The compound motion of each blade has guaranteed to form between blade closed condition and the valve body and valve seat a complete sealing surface, the choose reasonable of sealing material, rationally the applying of external force on the butterfly plate guaranteed that valve in off position can reliable sealing, plays the buffer action to the medium in the pipeline.
Description of drawings:
Fig. 1 is a Facad structure schematic representation of the present invention.
Fig. 2 is a side structure schematic representation of the present invention.
Fig. 3 is the A-A sectional view of Fig. 1.
Fig. 4 is the structural representation of linkage mechanism.
Fig. 5 is the A place structure for amplifying schematic representation of Fig. 1.
Embodiment:
Originally the rectangular isolation wind valve that has home mainly is made up of valve body 1, butterfly plate 2, axle 3, linkage mechanism 4, spring 5, seal ring 6, position-limit mechanism 7, bearing unit 8, drive unit 9 etc.The critical piece material is stainless steel or carbon steel (alloyed steel).
See also Fig. 1, Fig. 2, shown in Figure 3, wherein valve body 1 is to be welded to each other and the rectangular frame that surrounds by short side plate one 1A, short side plate two 1B of two sides correspondence and long side plate 1C, and short side plate one 1A, short side plate two 1B and the inboard welding seat of long side plate 1C and seal ring 6 is installed; Short side plate two 1B and long side plate 1C are provided with two bearing support 1B1, and long side plate 1C goes up welding drive unit support 1D; On short side plate two 1B relevant positions, connect position-limit mechanism 7 with bolt.
See also Fig. 1, Fig. 3, shown in Figure 5, between short side plate two 1B and the long side plate 1C two butterfly plates 2 are set, axle 3 passes butterfly plate 2 two ends and is arranged in bearing support 1B1 on short side plate two 1B and the long side plate 1C, again with bolt connection upper bearing (metal) assembly 8; Load onto spring 5, spring 5 one ends hang over position-limit mechanism 7 fixed holes, and the other end hangs over the ad hoc fixed hole of butterfly plate 2.
See also Fig. 2, shown in Figure 4, connect support 1D and drive unit 9 with bearing pin; Crank one 4E and crank two 4F are fixed with respectively on the axle 3, and connecting rod is connected with bearing pin with crank, and linkage mechanism 4 is threaded with drive unit 9; Connect long side plate 1C and supporting faceplate one 1E, long side plate 1C and supporting faceplate two 1F, installation shaft fixed plate 1G and 1H on supporting faceplate one 1E and supporting faceplate two 1F with bolt.
Originally have the rectangular isolation wind valve reinforcement of home and keep the home function:
See also shown in Figure 4, structural representation for this valve (valve with two butterfly plates is an example) linkage mechanism, this mechanism is a planar linkage, form by 9 movable parts, the degrees of freedom W=9 of planar mechanism * 3-2 * 13=1 guarantees connecting rod proper functioning under the situation of having only a power source.Drive unit 9 is a cylinder block hinged on valve body, and among the figure, part 4A is a cylinder column, is driving lever, and part 4B, 4C, 4D, 4G, 4H are connecting rod, and part 4E, 4F are for driving the crank that butterfly plate rotates.The mechanism that part 4B, 4C, 4D form is that boosting mechanism is at shown position, driving lever applies a less power, the very big power that has passes to crank one 4E by part 4D, make butterfly plate obtain bigger sealed force moment, guarantee valve closing state place air-tight state, effectively airflow partition plays the buffer action to medium.This moment, linkage mechanism was in a dead center position as we can see from the figure, applied external force even without driving lever, and mechanism also is in this position, promptly loses under the situation of source of the gas or power supply in this position, and valve still is in home.Connecting rod 4B, 4C, 4H are that a parallel mechanism has guaranteed crank one 4E and 4F synchronous operation, make a plurality of blades of big specification valve realize synchronization motion.
The airtight isolation features of this quick closedown isolation rectangular wind valve is achieved in that
The rectangle butterfly valve will be realized a complete sealing surface, butterfly plate 2 can not directly link to each other with axle 3, originally the seal valve seat that has the rectangular isolation wind valve of home is installed on the valve body 1, the butterfly plate 2 of this valve is a compound motion, and beginning rotatingshaft 3 is under the effect of spring 5 between butterfly plate 2 and the cantilever 2B, seal ring 6 is left in butterfly plate 2 translations, butterfly plate 2 together rotates with axle 3 then, opens valve, and is provided with the adjustable limiting mechanism 7 that guarantees the valve open angle.Need rationally to select for use the rubber of low hardness to do seal element simultaneously, guarantee under 4000Pa, valve internal leakage rate≤10Nm
3/ h.m
2Owing to do not have relative movement between butterfly plate sealing surface and the seal ring 6, to compare with common butterfly valve, rubber parts increases working life, and sealing reliability strengthens.
Claims (1)
1. rectangular isolation wind valve with home, include valve body (1), butterfly plate (2), axle (3), linkage mechanism (4), spring (5), seal ring (6), position-limit mechanism (7), bearing unit (8), drive unit (9), it is characterized in that: valve body (1) is to be welded to each other and the rectangular frame that surrounds by the short side plate one (1A) of two sides correspondence, short side plate two (1B) and long side plate (1C), and short side plate one (1A), short side plate two (1B) and the inboard welding seat of long side plate (1C) and seal ring (6) is installed; Short side plate two (1B) and long side plate (1C) are provided with two bearing supports (1B1), and long side plate (1C) is gone up welding drive unit support (1D); On short side plate two (1B) relevant position, connect position-limit mechanism (7) with bolt, between short side plate two (1B) and the long side plate (1C) two butterfly plates (2) are set, each butterfly plate (2) has axle (3), axle (3) passes butterfly plate (2) two ends and is arranged in bearing support (1B1) on short side plate two (1B) and the long side plate (1C), again with bolt connection upper bearing (metal) assembly (8); Load onto spring (5), spring (5) one ends hang over position-limit mechanism (7) fixed hole, and the other end hangs over the ad hoc fixed hole of butterfly plate (2); Connect support (1D) and drive unit (9) with bearing pin; One end of crank one (4E) and crank two (4F) is separately fixed on the axle (3), and the other end is connected with bearing pin with connecting rod in the linkage mechanism (4), and linkage mechanism (4) is threaded with drive unit (9); Connect long side plate (1C) and supporting faceplate one (1E), long side plate (1C) and supporting faceplate two (1F) with bolt, butterfly plate axis fixed plate (1H) and linkage mechanism hinging shaft fixed plate (1G) all are installed respectively on supporting faceplate one (1E) and supporting faceplate two (1F).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101986101A CN101358655B (en) | 2008-09-18 | 2008-09-18 | Rectangular isolation wind valve with safety position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101986101A CN101358655B (en) | 2008-09-18 | 2008-09-18 | Rectangular isolation wind valve with safety position |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101358655A CN101358655A (en) | 2009-02-04 |
| CN101358655B true CN101358655B (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101986101A Active CN101358655B (en) | 2008-09-18 | 2008-09-18 | Rectangular isolation wind valve with safety position |
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| Country | Link |
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| CN (1) | CN101358655B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168763B (en) * | 2011-05-18 | 2012-11-14 | 汨罗市金成管道阀门工程有限公司 | Convex top type single gate valve |
| CN105134974B (en) * | 2015-07-30 | 2017-10-24 | 南方风机股份有限公司 | The isolating valve of the low leakage of safety |
| CN105257838A (en) * | 2015-10-16 | 2016-01-20 | 吴忠仪表有限责任公司 | Triple eccentric multiple-blade flap valve |
| CN105546140A (en) * | 2016-01-22 | 2016-05-04 | 江苏丰源船舶工程有限公司 | Marine rectangular watertight air-operated damper |
| CN114458774B (en) * | 2022-02-15 | 2023-12-12 | 石家庄先楚核能装备股份有限公司 | Isolation air valve |
-
2008
- 2008-09-18 CN CN2008101986101A patent/CN101358655B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101358655A (en) | 2009-02-04 |
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