CN101430011B - Electromagnetic driving fast isolation rectangular wind valve - Google Patents
Electromagnetic driving fast isolation rectangular wind valve Download PDFInfo
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- CN101430011B CN101430011B CN2008101986084A CN200810198608A CN101430011B CN 101430011 B CN101430011 B CN 101430011B CN 2008101986084 A CN2008101986084 A CN 2008101986084A CN 200810198608 A CN200810198608 A CN 200810198608A CN 101430011 B CN101430011 B CN 101430011B
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Abstract
The invention provides a solenoid drive high speed isolating rectangular air valve, wherein, a valve body is a rectangular framework surrounded by a long lateral plate and a short lateral plate which have two corresponding surfaces and are welded with each other; a clapboard is welded in the middle between the long lateral plate and the short lateral plate to divide the rectangular framework into two parts, and the inner sides of the long lateral plate, the short lateral plate and the clapboard are welded with a valve seat and provided with obturating rings; the short lateral plate is provided with at least two bearing blocks and a mounting frame; a cantilever is arranged and welded at the position corresponding to a shaft, and the two ends of the shaft pass through the bearing blocks on the short lateral plate and are connected with an upper bearing assembly by a bolt; a butterfly plate is connected with the cantilever by a pin roll; the two ends of the shaft are connected and provided with a heavy bob component and a rocker arm by a key, and then are compressed by the bolt; the heavy bob component is connected and provided with a connecting rod II by a small shaft, the rocker arm is connected and provided with a connecting rod I by the small shaft, and then the connecting rod I and the connecting rod II are connected with each other by a connecting sleeve; an electromagnetic device and a pushing mechanism are installed on the mounting frame. By adopting the proposal, the air valve can be quickly closed and can be reliably sealed when being closed.
Description
Technical field:
The present invention relates to a kind of special valve that medium is isolated fast (shut-in time only is 3 seconds) in the industrial ventilation system.The medium that is suitable for is the air of air, coal gas, pollution etc., and working pressure≤0.005MPa has nuclear safety function, operating temperature≤150 ℃.Being mainly used in needs in the nuclear island ventilation system of nuclear power station to isolate fast and the strict operating mode of internal leakage.
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.This general valve drives by electric device for valve, and electric device for valve mainly is made up of motor and second-stage worm gear reducing gear, its driving time is 15～40 seconds, and common like this isolation butterfly valve does not possess the function of quick closedown, and the design of industrial ventilation system is brought many restrictions.The valve that circular ventilation duct is carried out separating valve has the butterfly valve of widely-used reliable performance, and rectangular duct is carried out the reducer pipe that closed type is isolated employing rectangle change circle, still adopts airtight butterfly valve that ventilation duct is isolated, and causes pipe resistance to increase.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, but a kind of quick closedown is provided, and electromagnetic driving fast isolation rectangular wind valve that can reliable sealing when closing.
For achieving the above object, technological scheme provided by the invention is: a kind of electromagnetic driving fast isolation rectangular wind valve, include valve body, butterfly plate, cantilever, axle, pushing mechanism, linkage mechanism, weight assembly, seal ring, bearing unit, calutron, rocking arm, wherein, valve body is to be welded to each other and the rectangular frame that surrounds by the long side plate of two sides correspondence and short side plate, middle welding one dividing plate is the rectangular frame separated into two parts, and inboard welding seat of long side plate, short side plate and dividing plate and installation seal ring; Short side plate is provided with at least two bearing supports, wherein on the short side plate mounting bracket is set also; Dress weldering cantilever on the corresponding position of axle, the axle two ends are arranged in the bearing support on the short side plate, connect the upper bearing (metal) assembly with bolt again; Butterfly plate is connected by bearing pin with cantilever; , compress with bolt then with key connection weight assembly and rocking arm at the axle two ends; On the weight assembly,, on rocking arm,, connect connecting rod one and connecting rod two with connecting sleeve again with little axle connection connecting rod one with little axle connection connecting rod two; Calutron and pushing mechanism are installed on mounting bracket.
The present invention adopts solenoid actuated and rationally, pushing mechanism has been realized the quick closedown of separating valve cleverly, and the shut-in time only is three seconds; The compound motion of butterfly plate has guaranteed to form between butterfly plate 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 plan view of the present invention.
Fig. 2 is a side structure schematic representation of the present invention.
Fig. 3 is the A place partial sectional view among Fig. 1.
Fig. 4 is the B place partial top view among Fig. 1.
Embodiment:
This electromagnetic driving fast isolation rectangular wind valve mainly is made up of valve body 1, butterfly plate 2, cantilever 3, axle 4, pushing mechanism 5, linkage mechanism 6, weight assembly 7, seal ring 8, bearing unit 9, calutron 10, rocking arm 11 etc.The critical piece material is stainless steel or carbon steel (alloyed steel).
See also Fig. 1, shown in Figure 2, wherein valve body 1 is to be welded to each other and the rectangular frame that surrounds by the long side plate 1A of two sides correspondence and short side plate 1B, middle welding one dividing plate 1C is the rectangular frame separated into two parts, and long side plate 1A, short side plate 1B and the inboard welding seat of dividing plate 1C, and seal ring 8 is installed.Short side plate 1B is provided with two bearing support 1B1, and calutron 10 mounting bracket 1B2 wherein also are set on the short side plate 1B.
See also Fig. 1, shown in Figure 3, dress weldering cantilever 3 on axle 4 corresponding positions, axle 4 two ends are arranged in the bearing support 1B1 on the short side plate 1B, connect upper bearing (metal) assembly 9 with bolt again; Butterfly plate 2 is connected by bearing pin 2B with cantilever 3; , compress with bolt then with key 11A connection weight assembly 7 and rocking arm 11 at axle 4 two ends; On weight assembly 7,, on rocking arm 11,, connect connecting rod one 6A and connecting rod two 6B with connecting sleeve 6C again with little axle connection connecting rod one 6A with little axle connection connecting rod two 6B.
See also shown in Figure 4ly, calutron 10 and pushing mechanism 5 are installed on mounting bracket 1B2.
Quick closedown function of the present invention is achieved in that
Under the quick separating valve normal condition of this electromagnetic type is to be in fully open position, receive the signal of master-control room when its driving mechanism-calutron 10, electromagnetic actuation, pushing mechanism 5 is thrown off hook 7D moment of hanging weight assembly 7, close in 3 seconds at the effect lower valve of weight, realize the quick isolation features of this valve.This pushing mechanism can also guarantee that valve prevents to link up with the function that 7D comes off when open position.The working principle of pushing mechanism: see also shown in Figure 4ly, when electromagnet gets electricly, electromagnet promotes operating stem 5A slides bearing pin 5C in locker 5B chute, and locker 5B rotates along bolt axis 5E, makes hook 7D moment throw off the quick closedown of realization valve; Spring 5D makes the position when operating stem 5A is reset to valve open; When opening valve, hook 7D bump locker 5B, locker 5B rotates, length of spring compressed, hook 7D and locker 5B leave, and by spring force locker 5B backward rotation, locker 5B inserts in the hook 7D automatically.
Airtight isolation features of the present invention is achieved in that
The quick separating valve of this electromagnetic type adopts double leaf parallel rod adjustable linkage mechanism 6 to guarantee being synchronized with the movement of two butterfly plates 2, form the sealing of a complete seal face between valve plate and the valve body, and rationally select for use the rubber of low hardness to do seal element, guarantee under 4000Pa, valve internal leakage rate≤10Nm
3/ h.m
2The rectangle valve will be realized a complete sealing surface, and butterfly plate 2 can not directly link to each other with axle 4, and the butterfly plate 2 of this valve is a compound motion, beginning rotatingshaft 4, under the effect of spring 2C between butterfly plate 2 and the cantilever 3, seal ring 8 is left in butterfly plate 2 translations, butterfly plate 2 together rotates with axle 4 then, opens valve.Owing to do not have relative movement between butterfly plate 2 sealing surfaces and the seal ring 8, to compare with common butterfly valve, rubber parts increases working life, and sealing reliability strengthens.
Claims (1)
1. electromagnetic driving fast isolation rectangular wind valve, include valve body (1), butterfly plate (2), cantilever (3), axle (4), pushing mechanism (5), linkage mechanism (6), weight assembly (7), seal ring (8), bearing unit (9), calutron (10); rocking arm (11); it is characterized in that: wherein; valve body (1) is to be welded to each other and the rectangular frame that surrounds by the long side plate (1A) of two sides correspondence and short side plate (1B); middle welding one dividing plate (1C) is the rectangular frame separated into two parts, and long side plate (1A); short side plate (1B) and the inboard welding seat of dividing plate (1C) and installation seal ring (8); Short side plate (1B) is provided with at least two bearing supports (1B1), wherein on the short side plate (1B) mounting bracket (1B2) is set also; Dress weldering cantilever (3) on the corresponding position of axle (4), axle (4) two ends are arranged in the bearing support (1B1) on the short side plate (1B), connect upper bearing (metal) assembly (9) with bolt again; Butterfly plate (2) is connected by bearing pin (2B) with cantilever (3); , compress with bolt then with key (11A) connection weight assembly (7) and rocking arm (11) at axle (4) two ends; Go up with little axle connection connecting rod two (6B) at weight assembly (7), go up with little axle connection connecting rod one (6A), use connecting sleeve (6C) to connect connecting rod one (6A) and connecting rod two (6B) again at rocking arm (11); Go up installation calutron (10) and pushing mechanism (5) at mounting bracket (1B2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101986084A CN101430011B (en) | 2008-09-18 | 2008-09-18 | Electromagnetic driving fast isolation rectangular wind valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101986084A CN101430011B (en) | 2008-09-18 | 2008-09-18 | Electromagnetic driving fast isolation rectangular wind valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101430011A CN101430011A (en) | 2009-05-13 |
| CN101430011B true CN101430011B (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101986084A Active CN101430011B (en) | 2008-09-18 | 2008-09-18 | Electromagnetic driving fast isolation rectangular wind valve |
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| CN (1) | CN101430011B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359603B (en) * | 2011-09-06 | 2012-12-19 | 石家庄阀门一厂股份有限公司 | Pressure resistance valve for nuclear grade air passage |
| CN103453153B (en) * | 2013-07-04 | 2016-05-11 | 四川迈铁龙科技有限公司 | Unit module combination air-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 |
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2008
- 2008-09-18 CN CN2008101986084A patent/CN101430011B/en active Active
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| CN101430011A (en) | 2009-05-13 |
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