CN105889547A - Elastic metal valve base sealing ball valve - Google Patents

Elastic metal valve base sealing ball valve Download PDF

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Publication number
CN105889547A
CN105889547A CN201410758745.4A CN201410758745A CN105889547A CN 105889547 A CN105889547 A CN 105889547A CN 201410758745 A CN201410758745 A CN 201410758745A CN 105889547 A CN105889547 A CN 105889547A
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CN
China
Prior art keywords
valve
valve seat
elastic
split type
seat
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Pending
Application number
CN201410758745.4A
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Chinese (zh)
Inventor
戴学祥
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戴学祥
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Priority to CN201410758745.4A priority Critical patent/CN105889547A/en
Publication of CN105889547A publication Critical patent/CN105889547A/en
Pending legal-status Critical Current

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Abstract

An elastic metal valve base sealing ball valve is provided with an integrated type elastic valve base (10) or a split type elastic valve base (11) pressed to a ball body (2) in a valve body (1) to lock a sliding gap. The integrated type elastic valve base (10)/the split type elastic valve base (11) and the ball body (2) can achieve the opening and closing operation for inputting/outputting media from the two sides of a connection body (3) to the other side. The elastic metal valve base sealing ball valve is characterized in that the integrated type elastic valve base (10)/the split type elastic valve base (11) and a valve base body (13) are provided with disk-shaped springs (4); the outer circumferences of the disk-shaped springs (4) surround arc grooves (10-1) of the integrated type elastic valve base (10)/the split type elastic valve base (11); and arc grooves (5-1) of oppositely-opened rings (5) are clamped to the outer circumferences of the disk-shaped springs (4).

Description

Elastic metal valve seat seal ball-valve
Technical field
The invention belongs to valve, particularly with regard to elastic metal valve seat seal ball-valve.
Background technology
For the water-coal-slurry of high temperature and high pressure or if powder etc. is with the ball of the media such as granular material Valve, the ball valve on these devices generally uses hard seal ball valve.Do not leak for ease of opening and closing ball valve, Must design the device of a sealing surface moment holding contiguity that can make spheroid and valve seat, these are typically tied Structure such as accompanying drawing 6.It is to be provided by the spring being distributed in valve chest the spheroid of ball valve and the sealing means of valve seat Power realizes.The spheroid of such ball valve and valve seat will on sealing surface pile-up welding hard alloy, manufacture difficulty Degree and production cost are the highest.
The reason that above-mentioned ball valve is not grown service life is the damage due to spherome surface and sealing surface of seat, Its reason is to be entered, by granular medium, the excessive friction formed between valve seat and ball seal face to cause mostly Abrasion.Causing such result is often that the motive force of spring is not enough, makes to produce between two sealing surfaces gap, Metal seat valve loses the function of self-cleaning scouring to spherome surface.These reasons are to float due to this valve seat, The fit clearance that itself exists, and this gap can make some small particulate materials enter under pressure Entering in spring assembly, plug its structure space after assembling fouling, making spring function effectively not play should Some effects.
It addition, the sealing of floating metal seat valve and valve body the most generally uses flexible graphite sealing ring, because of The structure of ball valve shell itself is restricted, and can accept to place the area of sealing ring and limited amount, therefore, Ball valve in use has the danger that there is internal hemorrhage due to trauma.This soft graphite needs the strongest compression stress just can reach The effect of the sealing arrived, thus can be too much consume the motive force that spring acts on valve seat so that valve Seat is not enough to the sealed motive force of spheroid.
Summary of the invention
It is an object of the invention to provide the ball valve that a kind of elastic seat seals, valve seat is in disc spring power The sealing force of the required sealing of offer that can not only be lasting under effect, and will not be entered inside it by medium Cause and seal the harm that demand driving power deficiency is formed.
This elastic metal valve seat seal ball-valve has the spheroid pressing in valve body and is sealed by glade plane space The integrated elastic valve seat of lock, Split type flexible valve seat, make this integrated elastic valve seat/Split type flexible valve seat Realizing medium with described spheroid to operate from the keying of the both sides input/output of connector to opposite side, its feature exists In, described connector is provided with disc spring, integrated elastic valve seat, Split type flexible valve seat, valve body, Divided ring and the collar.
Disc spring inner circumferential circle is centered around the half slot of described integrated elastic valve seat, the circular arc of valve body Groove, Split type flexible valve seat arc groove around.
The big footpath cylindrical of described integrated elastic valve seat is joined with the stepped hole of the cannelure of described connector Closing, path cylindrical contacts with the endoporus of described divided ring, and described path cylindrical is additionally provided with half slot, The side of this half slot has the elastomer of thin-walled feature.
Described valve body big footpath cylindrical coordinates, outside path with the stepped hole of the cannelure of described connector Circle contacts with the endoporus of described divided ring, and described path cylindrical is provided with arc groove, and this arc groove is from b point eventually Only in a dot center position.
Described Split type flexible valve seat is provided with arc groove, and this arc groove terminates in b dot center from a point Position, described half slot is the elastomer with thin-walled feature.
The lnner arced slot of described divided ring is fastened on the circle of described disc spring periphery.
The cylindrical of described collar inner circle and described divided ring matches, the annular of cylindrical and described connector Slotted eye contacts.
Described gasket seal one side and the end contact of described connector cannelure, another side and integral type The end contact of the end face/valve body of elastic seat becomes the situation sealed.
Beneficial effect
Disc spring will not be introduced at a medium containing granule in the environment of closing, it is ensured that Endurable offer valve seat and the sealing required drive of spheroid during work, therefore, the service life of ball valve can To be effectively improved.
Simple in construction, process and keep in repair be easier, the product cost of valve manufacture is less than presently commercially available Similar-type products.
Accompanying drawing explanation
1 valve body 2 spheroid
3 connector 4 disc springs
5 divided ring 6 gasket seals
7 bolt 8 valve rods
9 executor 10 integral flexible formula valve seats
11 Split type flexible valve seat 12 retainer ring
13 valve bodies
The present invention is further described by accompanying drawings below.
Fig. 1 is the sectional view of elastic metal valve seat seal ball-valve of the present invention.
Fig. 2 is the cross section of the elastic metal valve seat seal ball-valve integrated elastic valve base part shown in Fig. 1 Amplification view.
Fig. 3 is the cross section amplification view of the Split type flexible valve base sealing parts shown in Fig. 1.
Fig. 4 is that the cross section of the split type valve body 13 shown in Fig. 3 and Split type flexible valve seat is put Big sectional view.
Fig. 5 is the cross section amplification view of the integrated elastic valve seat 10 shown in Fig. 1.
Fig. 6 is the cross section amplification view of the divided ring 5 shown in Fig. 1.
Fig. 7 is the front perspective view of the disc spring 4 shown in Fig. 1.
Fig. 8 is that the right side of the disc spring 4 shown in Fig. 1 regards perspective view.
Fig. 9 is the cross section amplification view that the connector 3 shown in Fig. 1 places seal member cannelure.
Figure 10 is the spring seal unit between the valve seat of commercially available ball valve and spheroid, valve body.
Diagram major part code number then represents it is identical effect if any identical label.
Detailed description of the invention
The elastic metallic seal ball-valve structure of the present invention such as accompanying drawing 1~8, wherein, with valve body 1 both sides The connector 3 being connected designs integrated elastic attribute valve seat 10, Split type flexible valve seat 11 and is connected The valve body 13 connect, disc spring 4, divided ring 5, it addition, also have the collar for fixing divided ring 5 12, a valve rod 8 being used for connecting spheroid 2, described valve rod 8 one end is drawn from the top of valve body 1 and is connected Receive executor 9, touch described executor 9 and can realize the switch motion of ball valve.
Integrated elastic attribute valve seat 10 as shown in Fig. 5 Yu Fig. 2, wherein, is designed with and can limit And wrap up the half slot 10-1 blocking disc spring 4, at this half slot 10-1 from the vertical centre of groove to one What limit extended is elastic semicircular body 10-2 with thin-walled feature, and is formed and ball in this semicircular body 10-2 Body 2 cylindrical contiguity Inner arc sealing surface 10-3, above-mentioned sealing surface 10-3 with well-known the same be heap Weldering can tolerate the hard metal wearing layer of corrosion.
Another example implementation is, as shown in Figure 3 and Figure 4, i.e. Split type flexible valve seat 11, valve Pedestal 13, this structure is elastic seat (such as dimension D N300~DN1000mm applying to large-scale ball valve Or bigger), it is possible to reduce material is favourable to product cost.
Described Split type flexible valve seat 11 and integrated elastic different being of attribute valve seat 10, Split type flexible valve seat 11 from the vertical centre a point of half slot 11-1 to while extend to horizontal b Point terminates, and is both the elastic circular arc body with thin-walled feature, say, that elastic seat 11 and valve body 13 is an assembly, uses the method for designing of separate type.
Above-mentioned Split type flexible valve seat 11 considers from cost that is economic and that process, preferably steel plate The manufacturing process of calendering, is processed into a middleware, docking after valve seat 10 arranges disc spring 4 Split type flexible valve seat 11, becomes assembly by welding and valve body 13.
For above-described integrated elastic valve seat 10 or Split type flexible valve seat 11, it is common Feature is, such as, as shown in Fig. 4, be all with the circular arc body of from a point to point b 1/4 circle, utilize dish Shape spring 4 suitably press the sealing surface 10-3 of integrated elastic valve seat 10, Split type flexible valve seat 11 close Front cover 11-1 regulates and controls thin-walled circular arc body and coincide with contacting of spheroid 2 cylindrical.
The purpose of the divided ring 5 of Fig. 6 be also to can to limit and wrap up block disc spring 4, Described divided ring 5 is provided with the half slot 5-1 consistent with disc spring 4 cylindrical, cutting of its inner circle Face 5-4 and the center parallel of described disc spring 4, and simultaneously with the path cylindrical on integrated elastic valve seat B point on the valve body 13 that 10-7, Split type flexible valve seat 11 are connected overlaps.
For ease of installing disc spring 4, described divided ring 5 cuts from middle 5-3 after processing and uses.
Owing to described divided ring 5 is in half-open shape, so could limit parcel card and be pressed in dish type On the semicircle of the periphery of spring 4, in order to further this divided ring 5 is fixed with follow-up processing, Therefore, devise the collar 12, be formed for being an overall sealing pair when divided ring 5 puts the collar 12, Can be carried out next step sealing surface 10-3 and the Split type flexible valve seat 11 of integrated elastic valve seat 10 are sealed The processing of face 11-1 or the operation of the pairing grinding with spheroid 2.
Divided ring 5, disc spring 4 and the collar 12 in above-mentioned integrated elastic valve seat 10 molectron It is assembled into together in the side stepped hole 3-1 and another stepped hole 3-2 of connector 3, it addition, in one Pad 6 one side described in formula elastic seat 10 contacts with the end face 3-3 of the cannelure of described connector 3, another Face contacts and is formed with described integral type valve seat 10 and end face and the sealing of described connector 3, can stop Medium from connector 3 to valve body 1 intermediate bleeder.
Disc spring 4 as such in Fig. 7, Fig. 8 is that bending is spliced into circular after continuous coiling, and It is encased in the half slot 10-1 of described integrated elastic valve seat 10, Split type flexible valve seat 11 successively Circular arc 11-1, valve body 13 half slot 13-1 in, the peak of its cylindrical often enclosed and described one The half slot 10-1 of formula elastic seat 10, the arc groove 11-1 of Split type flexible valve seat 11, valve body 13 Contact inconsistent for arc groove 13-1.
Tighten bolt 8 top nut that connector 3 connects on valve body 1 around both sides accordingly, make connection Body 3 compression seal pad 6, drive integrated elastic valve seat 10 or valve body 13 are pushed ahead simultaneously, Make the half slot 10-1 of described integrated elastic valve seat 10, the arc groove 11-1 of Split type flexible valve seat 11, The arc groove 13-1 of valve body 13 under the effect of disc spring 4 and spheroid 2 sealing surface realize closely connect Touch, be consequently formed and the sealing of spheroid 2 cylindrical.
As being under different pressure at the elastic seat seal ball-valve of the present invention, different cutting can be selected Face and the disc spring 4 of central diameter.The cross section of usual above-mentioned disc spring 4 and central diameter are along with increasing of pressure Increase, otherwise pressure reduces then.Meanwhile, the head of integrated elastic valve seat 10/ Split type flexible valve seat 11 Wall thickness thicken or thinning also with the size of ball valve pressure.
On Fig. 2 and Fig. 3 amplified, the end of integrated elastic valve seat 10 semicircular body/split type bullet The elastic circular arc body end of the head of property valve seat 11 terminates at 5 central plane 5-4 of divided ring, after mounting Become mutually the closed state of contact, be so prevented from the entrance of medium and block the space of disc spring 4, To ensure that disc spring 4 can have a working environment persistently do not interfered.

Claims (8)

1. an elastic metal valve seat seal ball-valve, has the spheroid (2) pressed in valve body (1) And body formula elastic seat (10) that glade plane space is blocked, Split type flexible valve seat (11), make this one Formula elastic seat (10)/Split type flexible valve seat (11) and described spheroid (2) realize medium from connector (3) both sides input/output operates to the keying of opposite side, it is characterised in that described connector (3) In be provided with disc spring (4), integrated elastic valve seat (10), Split type flexible valve seat (11), valve body (13), divided ring (5) and the collar (12).
Elastic metal valve seat seal ball-valve the most according to claim 1, it is characterised in that: described dish type Spring (4) inner circumferential circle is centered around the half slot (10-1) of described integrated elastic valve seat (10), valve body (13) arc groove (13-1), arc groove (11-1) surrounding of Split type flexible valve seat (11).
Elastic metal valve seat seal ball-valve the most according to claim 1, it is characterised in that: described one The cannelure 3-2's of big footpath cylindrical (10-6) of formula elastic seat (10) and described connector (3) Stepped hole coordinates, and path cylindrical (10-4) contacts with the endoporus (5-4) of described divided ring 5, described It is additionally provided with half slot (10-1) on path cylindrical (10-4), has in the side of this half slot (10-1) The elastomer (10-2) of thin-walled feature.
Elastic metal valve seat seal ball-valve the most according to claim 1, it is characterised in that: described valve seat Big footpath cylindrical (13-3) of body (13) coordinates with the stepped hole of the cannelure 3-2 of described connector (3), Path cylindrical b contacts with the endoporus (5-4) of described divided ring 5, and described path cylindrical b is provided with circular arc Groove (13-1), this arc groove (13-1) terminates in a dot center position from b point.
Elastic metal valve seat seal ball-valve the most according to claim 1, it is characterised in that: described divides Body formula elastic seat (11) is provided with arc groove (11-1), and this arc groove (11-1) terminates in from a point B dot center position, described half slot (11-1) is the elastomer with thin-walled feature.
Elastic metal valve seat seal ball-valve the most according to claim 1, it is characterised in that: described split The lnner arced slot (5-1) of ring 5 is fastened on the circle of described disc spring (4) periphery.
Elastic metal valve seat seal ball-valve the most according to claim 1, it is characterised in that: the described collar (12) cylindrical (5-2) of inner circle and described divided ring (5) match, cylindrical and described connector (3) Annular slotted hole (3-1) contact.
The elastic seat seal ball-valve of combination the most according to claim 1, its spy is: described close Gasket (6) one side contacts with the end face (3-3) of described connector (3) cannelure (3-2), another Face connects with the end face (13-2) of end face (the 10-5)/valve body (13) of integrated elastic valve seat (10) Touch into the situation of sealing.
CN201410758745.4A 2014-12-06 2014-12-06 Elastic metal valve base sealing ball valve Pending CN105889547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410758745.4A CN105889547A (en) 2014-12-06 2014-12-06 Elastic metal valve base sealing ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410758745.4A CN105889547A (en) 2014-12-06 2014-12-06 Elastic metal valve base sealing ball valve

Publications (1)

Publication Number Publication Date
CN105889547A true CN105889547A (en) 2016-08-24

Family

ID=56699771

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410758745.4A Pending CN105889547A (en) 2014-12-06 2014-12-06 Elastic metal valve base sealing ball valve

Country Status (1)

Country Link
CN (1) CN105889547A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2197536Y (en) * 1993-10-14 1995-05-17 吴志华 Metal valve with elastic seat
CN201028044Y (en) * 2007-04-16 2008-02-27 袁平仁 Regulation type ball valve seat
US20100090146A1 (en) * 2008-10-13 2010-04-15 Swagelok Company Valve sealing arrangements and methods
CN201739553U (en) * 2010-06-26 2011-02-09 曲树蓁 Elastic valve seat of ball valve
US20110260088A1 (en) * 2010-04-21 2011-10-27 Cunningham James A Ball valve having complex valve seat
CN202756661U (en) * 2012-08-21 2013-02-27 上海开维喜阀门集团有限公司 Integrated valve seat of metal sealing ball valve
CN103899783A (en) * 2012-12-25 2014-07-02 沃泰工业阀门(中国)有限公司 Elastic energy-storage sealing valve base
CN204358151U (en) * 2014-12-06 2015-05-27 戴学祥 Elastic metal valve seat seal ball-valve

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2197536Y (en) * 1993-10-14 1995-05-17 吴志华 Metal valve with elastic seat
CN201028044Y (en) * 2007-04-16 2008-02-27 袁平仁 Regulation type ball valve seat
US20100090146A1 (en) * 2008-10-13 2010-04-15 Swagelok Company Valve sealing arrangements and methods
US20110260088A1 (en) * 2010-04-21 2011-10-27 Cunningham James A Ball valve having complex valve seat
CN201739553U (en) * 2010-06-26 2011-02-09 曲树蓁 Elastic valve seat of ball valve
CN202756661U (en) * 2012-08-21 2013-02-27 上海开维喜阀门集团有限公司 Integrated valve seat of metal sealing ball valve
CN103899783A (en) * 2012-12-25 2014-07-02 沃泰工业阀门(中国)有限公司 Elastic energy-storage sealing valve base
CN204358151U (en) * 2014-12-06 2015-05-27 戴学祥 Elastic metal valve seat seal ball-valve

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Application publication date: 20160824

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