CN104006176A - Gate valve - Google Patents
Gate valve Download PDFInfo
- Publication number
- CN104006176A CN104006176A CN201310282707.1A CN201310282707A CN104006176A CN 104006176 A CN104006176 A CN 104006176A CN 201310282707 A CN201310282707 A CN 201310282707A CN 104006176 A CN104006176 A CN 104006176A
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- China
- Prior art keywords
- plate
- sealing
- valve
- medium
- valve body
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- Legal status (The legal status 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 status listed.)
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Classifications
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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
- 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
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a gate valve. According to the technical scheme, the gate valve comprises a valve body, a gate, and a drive mechanism, wherein the drive mechanism is used for driving the gate to open or close, medium channels are arranged on two symmetric sides of the valve body, the two symmetric sides correspond to the gate, a seal member for enabling the gate and the valve body to form effective sealing is further arranged in the valve body, the seal member comprises a telescopic seal section, a medium cavity, and a medium inlet, the seal section is used for wrapping the gate to form seal connection or being separated from the gate, the medium cavity is placed in the seal section, and the medium inlet is used for communication with an external medium source and communicated with the medium cavity. A seal mode that an inflation type seal member directly abuts to the gate in an inflation state in the prior art is changed into a seal mode that the inflation type seal member wraps the gate in the inflation state, so that the whole gate valve is watertight, and seal properties of the gate valve are greatly improved.
Description
Technical field
The present invention relates to a kind of valve, more particularly, it relates to a kind of push-pull valve.
Background technique
Valve is the controlling component in fluid delivery system, has cut-off, adjusting, water conservancy diversion, prevents the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.For the valve of liquid control system, from the simplest stop valve to very complicated robot control system(RCS) various valves used, its kind and specification are quite various.Valve can be used for controlling flowing of all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.
Because some valve bodies are in the time carrying containing particle media, the granular substance in medium easily blocks the sealing position of valve body and open-shut device, or effect of attrition sealing is caused in the sealing position of valve body and open-shut device.At present, the technician of valve field, in order to address the above problem, normally arranges the structure that can pulverize particulate matter, or to open-shut device or/and the setting of abrasion-proof structure is carried out at the sealing position of valve seat.This improved structure, normally belongs to " curing the symptoms, not the disease " type, and valve is after long-term work, and the sealing position of valve body and open-shut device still there will be wearing and tearing more or less.
Push-pull valve, is the valve of a kind of flashboard and valve seat close contact sealing all the time, and its principle is the round mouth that has a latus rectum size on flashboard, is opened and closed and is made the action that on flashboard, round mouth is finished total detachment and matched with latus rectum by flashboard.Close with opening process in valve seat be close to motion with flashboard always, make valve opening and closing power stable, and there is the features such as the medium of cut-out.The advantage of push-pull valve is that valve body latus rectum is without groove, and medium can not stop up by jam, and has full-bore flow characteristics, and its sealing configuration can divide soft seal, hard sealing structure.
Application number is that 200910010512.5 Chinese patent discloses a kind of Gasproof damper valve, comprise valve seat, bonnet, bonnet hold-down bolt, plate, plug lock jack panel, plate push rod, plate push rod drive unit, be located at and between bonnet and plate, have the shaped rubber seal ring with cavity, its outside contacts with valve seat, its inner side contacts with seal ring pressure ring, the cavity of the shaped rubber seal ring formation gastight cavity that communicates with the ventilation cavity of bonnet, the pipeline of calming the anger is connected and inflates to gastight cavity with bonnet ventilation cavity.On the downside of bonnet, the upper-end surface of seal ring pressure ring and the upper-end surface of valve seat is respectively equipped with sealed groove, matches with the projection of shaped rubber seal ring, ensures that push-pull valve has good sealing configuration.
The Gasproof damper valve of this invention has adopted the shaped rubber seal ring with cavity, between two sealing surfaces of seal ring and plate, be that soft or hard cooperation contacts, on the upper-end surface of the downside of bonnet, seal ring pressure ring and on the upper-end surface of valve seat, be respectively equipped with sealed groove, match with the projection of shaped rubber seal ring, when plate is during in the position of closing, the gastight cavity that makes to form between the cavity of rubber seal and bonnet ventilation cavity remains full of calms the anger, thereby ensures that push-pull valve has good sealing configuration, because bonnet ventilation cavity is connected with the pipeline of calming the anger, calm the anger on pipeline and be separately installed with pressure sensing, display device and the control valve of calming the anger, when push-pull valve is during in closed condition, control valve is opened toward sending in gastight cavity and is calmed the anger, under pressure of compressed air effect, shaped rubber seal ring is fitted on plate tightly, thereby guarantee that push-pull valve has good sealability, and in the time that needs are opened push-pull valve, first by control valve by the discharge of calming the anger in gastight cavity, reduce the pressure between shaped rubber seal ring and plate, this just reduces the frictional force between shaped rubber seal ring and plate, thereby the wearing and tearing of shaped rubber seal ring and plate are reduced, extend the working life of seal ring.
This push-pull valve has adopted novel sealing configuration, it is air-tight structure, but still there are numerous defects: one, due to the set-up mode of shaped rubber seal ring, cause seal ring under inflated condition, just conflict and link together simply with plate, its sealing state and traditional seal ring are as good as, when the gas that is just filled with at shaped rubber seal ring is abundant, shaped rubber seal ring and plate are snugly tightr, but still cannot ensure to have no to leak between shaped rubber seal ring and plate; Its two, when shaped rubber seal ring is during in deflation status, need the flowing medium of carrying easily to remain in the gap between shaped rubber seal ring and all parts, easily cause the wearing and tearing of shaped rubber seal ring and all parts; Its three, whole sealing configuration relates to the parts such as plate, valve seat, upper cover plate, shaped rubber seal ring, seal ring pressure ring, structure is too complicated, has increased fabricating cost simultaneously.
Summary of the invention
The deficiency existing for prior art, the object of the present invention is to provide a kind of push-pull valve that can greatly improve sealability.
For achieving the above object, the invention provides following technological scheme: a kind of push-pull valve, comprise valve body, plate and for driving the driving mechanism of plate closure or openness, the symmetrical both sides of the corresponding plate of described valve body are provided with medium channel, in described valve body, be also provided with for making plate and valve body form the Sealing of effective sealing, described Sealing comprise scalable setting for wrap plate form be tightly connected or with plate depart from seal section, be placed in the media cavity in seal section, for the medium inlet being connected with the conducting of external agency source, described medium inlet is connected with media cavity conducting.
By adopting technique scheme, by inflatable seal in prior art under inflated condition directly with the plate sealing means being connected of conflicting, change to the sealing means that inflatable seal wraps plate under inflated condition, make whole push-pull valve watertight, greatly improved the sealability of push-pull valve.
The present invention is further set to: described seal section has been wholely set and when be filled with medium in media cavity time, has been convex and wraps plate, be sagged shape make the departing sealing surface of plate in the time that media cavity is emitted medium.
By adopting technique scheme, because sealing surface is telescopic, in the time that plate need to be opened, first the medium in media cavity is discharged, make sealing surface depression, plate does not contact with Sealing, even if remain solid particle in sealing surface, also can not have any impact to Sealing and plate; After plate is closed; during toward medium interacvity air-filling, the edge of sealing surface projection hard-pressed bale plate, the impurity remaining in sealing surface incorporates in medium channel; the solid particle of noresidue or sludge between sealing surface and plate, thus make between Sealing (valve seat) and plate never wornout.
The present invention is further set to: Sealing is inflatable seal valve seat, and media cavity is source of the gas chamber, and source of the gas chamber is placed in seal section, and seal section is placed in a side of the corresponding plate of inflatable seal valve seat.
By adopting technique scheme, Sealing is inflatable seal valve seat, has reduced number and the kind of component, makes to simplify the structure, and is convenient to assembling, reduces fabricating cost.
The present invention is further set to: described driving mechanism comprises the driving cylinder being connected with plate, and between the medium inlet of described Sealing and driving cylinder, conducting is connected with medium transport pipeline.
By adopting technique scheme, the structure that arranges of driving mechanism is specialized, the medium transport mode of media cavity is simple, convenient, and reliable.
The present invention is further set to: described plate part is placed in the formation built-in portion of plate in valve body, described Sealing part is placed in the formation built-in portion of Sealing in valve body, the built-in portion of plate and the built-in portion of Sealing shape size are all suitable, the built-in portion of described Sealing is U-shaped structure setting, in the other end of the corresponding driving mechanism of described plate and the built-in portion of Sealing, the shape size of arc part is all suitable, in the built-in portion of Sealing, the vertical size at vertical position is more than or equal to the movement travel of plate, and the shape size of seal section and the shape size of Sealing are all suitable.
By adopting technique scheme, in the shape of the built-in portion of Sealing, the built-in portion of Sealing the shape of sealing surface all with the shape adaptation of the built-in portion of plate, guarantee comprehensively to seal without dead angle formula, structure is very simple and reliable.
Brief description of the drawings
Fig. 1 is push-pull valve embodiment's of the present invention structural representation;
Fig. 2 is push-pull valve embodiment's of the present invention structure sectional view;
Fig. 3 is seal configuration schematic diagram;
Fig. 4 is the structure sectional view of Sealing;
Fig. 5 is the cooperating structure schematic diagram of the Sealing under plate of the present invention and inflated condition.
Embodiment
Referring to figs. 1 through Fig. 5, push-pull valve embodiment of the present invention is described further.
A kind of push-pull valve, comprise valve body 1, plate 2 and for driving the driving mechanism 4 of plate 2 closure or openness, the symmetrical both sides of the corresponding plate 2 of described valve body 1 are provided with medium channel 11, in described valve body 1, be also provided with for making plate 2 and valve body 1 form the Sealing 3 of effective sealing, described Sealing 3 comprises forming the seal section 32 that is tightly connected or depart from plate 2, be placed in the media cavity 322 in seal section 32, the medium inlet 31 for being connected with the conducting of external agency source for wrapping plate 2 of scalable setting, and described medium inlet 31 is connected with media cavity 322 conductings.It should be noted that herein, with reference to accompanying drawing 5, taking specific embodiments of the invention as pattern, plate 2 comprises main surface 21 and the less side 22 of area that area is larger, main surface 21 and side 22 one are connected, " wrapping " of indication of the present invention should be understood to Sealing 3 and is closely connected on main surface 21 and side 22 in the joining place part of main surface 21 and side 22, and the seal 3 sealed packets wrap the part of plate 2 should be suitable with side 22 shapes.
By adopting technique scheme, by inflatable seal in prior art 3 under inflated condition directly with plate 2 sealing means being connected of conflicting, change to the sealing means that inflatable seal 3 wraps plate 2 under inflated condition, make whole push-pull valve watertight, greatly improved the sealability of push-pull valve.
Described seal section 32 has been wholely set and when be filled with medium in media cavity 322 time, has been convex and wraps plate 2, be sagged shape the departing sealing surface 321(of plate 2 be it should be noted that herein in the time that media cavity 322 is emitted medium, sealing surface 321 is discharging after medium, its cross section can be horizontal, do not contact with plate 2 discharging after medium in order to ensure sealing surface 321, the present embodiment is preferred, when media cavity 322 is emitted after medium, sealing surface 321 is sagged shape, its cross section can be V-shaped, U-shaped, arc or other geometrical shapies).
By adopting technique scheme, because sealing surface 321 is telescopic, in the time that plate 2 need to be opened, first the medium in media cavity 322 is discharged, sealing surface 321 is caved in, plate 2 does not contact with Sealing 3, even remain solid particle in sealing surface 321, also can not have any impact to Sealing 3 and plate 2; After plate 2 is closed; during toward the interior inflation of media cavity 322; the edge of sealing surface 321 projections hard-pressed bale plate 2; the impurity remaining in sealing surface 321 incorporates in medium channel 11; solid particle or the sludge of noresidue between sealing surface 321 and plate 2, thus make Sealing 3(valve seat) and plate 2 between never wornout.
Sealing 3 is inflatable seal valve seat, and media cavity 322 is source of the gas chamber, and source of the gas chamber is placed in seal section 32, and seal section 32 is placed in a side of the corresponding plate 2 of inflatable seal valve seat.
By adopting technique scheme, Sealing 3 is inflatable seal valve seat, has reduced number and the kind of component, makes to simplify the structure, and is convenient to assembling, reduces fabricating cost.
Described driving mechanism 4 comprises the driving cylinder being connected with plate 2, the medium inlet 31 of described Sealing 3 and drive between cylinder conducting to be connected with medium transport pipeline 6(herein to it should be noted that, described medium transport pipeline 6 is tracheae, between tracheae and driving cylinder, is connected by three linked piece 7 conductings).
By adopting technique scheme, the structure that arranges of driving mechanism 4 is specialized, the medium transport mode of media cavity 322 is simple, convenient, and reliable.
Described plate 2 parts are placed in the built-in portion of the interior formation plate 2 of valve body 1, described Sealing 3 parts are placed in the built-in portion of the interior formation Sealing 3 of valve body 1, the built-in portion of plate 2 and the built-in portion of Sealing 3 shape size are all suitable, the built-in portion of described Sealing 3 is U-shaped structure setting, in the other end of the corresponding driving mechanism 4 of described plate 2 and the built-in portion of Sealing 3, the shape size of arc part is all suitable, in the built-in portion of Sealing 3, the vertical size at vertical position is more than or equal to the movement travel of plate 2, and the shape size of the shape size of seal section 32 and Sealing 3 is all suitable.
By adopting technique scheme, in the shape of Sealing 3 built-in portions, the built-in portion of Sealing 3 shape of sealing surface 321 all with the shape adaptation of plate 2 built-in portions, guarantee comprehensively to seal without dead angle formula, structure is very simple and reliable.
Working principle: what push-pull valve of the present invention adopted is retractable glans penis face principle, in the time that valve need to be opened, the media cavity 322 of Sealing 3 is exitted, and sealing surface 321 is huddled up into, and plate 2 departs from Sealing 3, and plate 2 can easily be opened; In the time of valve closing, the media cavity 322 of Sealing 3 to be inflated, sealing surface 321 naturally stretches out from seal section 32, and the edge of hard-pressed bale plate 2, makes whole push-pull valve watertight.Whole working procedure is that exit → plate of Sealing 32 is opened; Close → Sealing of plate 23 is inflated, and operating process is very simple.
Valve bodies 1 more of the prior art are in the time carrying containing particle media, and the granular substance in medium easily blocks the sealing position of valve body 1 and open-shut device, or effect of attrition sealing is caused in valve body 1 and the sealing position of open-shut device.At present, the technician of valve field, in order to address the above problem, normally arranges the structure that can pulverize particulate matter, or to open-shut device or/and the setting of abrasion-proof structure is carried out at the sealing position of valve seat.This improved structure, normally belongs to " curing the symptoms, not the disease " type, and valve is after long-term work, and valve body 1 still there will be wearing and tearing more or less with the sealing position of open-shut device.
Push-pull valve of the present invention, because sealing surface 321 is telescopic, in the time that plate 2 is opened, sealing surface 321 caves in, and plate 2 does not contact with Sealing 3, even remain solid particle in sealing surface 321, also can not have any impact to Sealing 3 and plate 2; When toward the interior inflation of media cavity 322; sealing surface 321 projections; the impurity remaining in sealing surface 321 incorporates in medium channel 11, solid particle or the sludge of noresidue between sealing surface 321 and plate 2, thereby make Sealing 3(valve seat) and plate 2 between never wornout.
Push-pull valve of the present invention can be widely used in the fields such as oil, chemical industry, pharmacy, papermaking, sugaring, daily use chemicals, pottery, ore dressing and sewage treatment, can conveying crude oil, pitch, mud, chemical fertilizer, nutrient solution, Chinese patent drug, paste medicament, pulpous state medicament, mealy medicine, paper pulp, syrup, crystalline solid, toothpaste, cosmetics, washing agent, cream, pulp, pigment, coating, adhesive, coal slurry, ore pulp and other slurries, powder, liquid or pulp-water mixture.Push-pull valve of the present invention is the novel alternative of conventional gate valve, ball valve, butterfly valve, slag-off valve.
Claims (5)
1. a push-pull valve, comprise valve body, plate and for driving the driving mechanism of plate closure or openness, the symmetrical both sides of the corresponding plate of described valve body are provided with medium channel, in described valve body, be also provided with for making plate and valve body form the Sealing of effective sealing, it is characterized in that: described Sealing comprise scalable setting for wrap plate form be tightly connected or with plate depart from seal section, be placed in the media cavity in seal section, the medium inlet for being connected with the conducting of external agency source, described medium inlet is connected with media cavity conducting.
2. push-pull valve according to claim 1, is characterized in that: described seal section has been wholely set and when be filled with medium in media cavity time, has been convex and wraps plate, be sagged shape make the departing sealing surface of plate in the time that media cavity is emitted medium.
3. push-pull valve according to claim 1 and 2, is characterized in that: Sealing is inflatable seal valve seat, and media cavity is source of the gas chamber, and source of the gas chamber is placed in seal section, and seal section is placed in a side of the corresponding plate of inflatable seal valve seat.
4. push-pull valve according to claim 3, is characterized in that: described driving mechanism comprises the driving cylinder being connected with plate, and between the medium inlet of described Sealing and driving cylinder, conducting is connected with medium transport pipeline.
5. push-pull valve according to claim 1 and 2, it is characterized in that: described plate part is placed in the formation built-in portion of plate in valve body, described Sealing part is placed in the formation built-in portion of Sealing in valve body, the built-in portion of plate and the built-in portion of Sealing shape size are all suitable, the built-in portion of described Sealing is U-shaped structure setting, in the other end of the corresponding driving mechanism of described plate and the built-in portion of Sealing, the shape size of arc part is all suitable, in the built-in portion of Sealing, the vertical size at vertical position is more than or equal to the movement travel of plate, the shape size of seal section and the shape size of Sealing are all suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282707.1A CN104006176B (en) | 2013-07-06 | 2013-07-06 | Push-pull valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282707.1A CN104006176B (en) | 2013-07-06 | 2013-07-06 | Push-pull valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104006176A true CN104006176A (en) | 2014-08-27 |
| CN104006176B CN104006176B (en) | 2016-06-08 |
Family
ID=51366983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310282707.1A Active CN104006176B (en) | 2013-07-06 | 2013-07-06 | Push-pull valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104006176B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765647A (en) * | 1972-01-21 | 1973-10-16 | M & J Valve Co | Valve construction and method |
| US3765440A (en) * | 1971-05-05 | 1973-10-16 | M & J Valve Co | Valve construction |
| DE4028182A1 (en) * | 1990-09-05 | 1992-03-12 | Krupp Polysius Ag | Shut=off device with housing and displaceable shut=off element - has pressure source biassing sealing elements with underpressure to remove sealing engagement |
| CN2310206Y (en) * | 1997-08-06 | 1999-03-10 | 李振华 | Air-tight type board-plug valve device |
| CN200968433Y (en) * | 2006-08-02 | 2007-10-31 | 花世杰 | Inflated sealing gate valve |
| CN101749445A (en) * | 2009-12-17 | 2010-06-23 | 姜日静 | Sealing structure of knife gate valve or slurry valve |
| CN202580083U (en) * | 2012-05-12 | 2012-12-05 | 启东市冶金机械有限公司 | Pressurizing sealing gate valve |
| CN203463691U (en) * | 2013-07-06 | 2014-03-05 | 方紫然 | Gate valve |
-
2013
- 2013-07-06 CN CN201310282707.1A patent/CN104006176B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765440A (en) * | 1971-05-05 | 1973-10-16 | M & J Valve Co | Valve construction |
| US3765647A (en) * | 1972-01-21 | 1973-10-16 | M & J Valve Co | Valve construction and method |
| DE4028182A1 (en) * | 1990-09-05 | 1992-03-12 | Krupp Polysius Ag | Shut=off device with housing and displaceable shut=off element - has pressure source biassing sealing elements with underpressure to remove sealing engagement |
| CN2310206Y (en) * | 1997-08-06 | 1999-03-10 | 李振华 | Air-tight type board-plug valve device |
| CN200968433Y (en) * | 2006-08-02 | 2007-10-31 | 花世杰 | Inflated sealing gate valve |
| CN101749445A (en) * | 2009-12-17 | 2010-06-23 | 姜日静 | Sealing structure of knife gate valve or slurry valve |
| CN202580083U (en) * | 2012-05-12 | 2012-12-05 | 启东市冶金机械有限公司 | Pressurizing sealing gate valve |
| CN203463691U (en) * | 2013-07-06 | 2014-03-05 | 方紫然 | Gate valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104006176B (en) | 2016-06-08 |
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Effective date of registration: 20201211 Address after: No.96, Qinghua West Road, Huaao village, Oubei street, Yongjia County, Wenzhou City, Zhejiang Province, 325000 Patentee after: Zhejiang Shengju Valve Technology Co.,Ltd. Address before: No.96, Qinghua West Road, Oubei Town, Yongjia County, Wenzhou City, Zhejiang Province 325000 Patentee before: Fang Ziran |
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| TR01 | Transfer of patent right |