CN104896129A - Parallel type double-gate gate valve - Google Patents
Parallel type double-gate gate valve Download PDFInfo
- Publication number
- CN104896129A CN104896129A CN201510246446.7A CN201510246446A CN104896129A CN 104896129 A CN104896129 A CN 104896129A CN 201510246446 A CN201510246446 A CN 201510246446A CN 104896129 A CN104896129 A CN 104896129A
- Authority
- CN
- China
- Prior art keywords
- valve
- gate
- valve rod
- hinge
- valve gap
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
- F16K3/18—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 by movement of the closure members
- F16K3/182—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 by movement of the closure members by means of toggle links
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention belongs to a parallel type double-gate gate valve. The parallel type double-gate gate valve comprises a hand wheel (17) which is fixed at the upper end of a valve rod nut (14) through a circular nut (18). The parallel type double-gate gate valve is characterized in that a valve rod (7) is connected with a hinge frame (6); the hinge frame (6) is connected with a first hinge arm (5) through a second hinge arm (33); the first hinge arm (5) is connected with each gate (3) through a first hinge pin (4); the first hinge arm (5) and the hinge frame (6) are arranged in a gate frame (34) to form a closed part; a spring is arranged between the gate frame (34) and the valve rod (7). According to the parallel type double-gate gate valve, the sealing performance is good, the double-sided forced sealing is achieved, the leakage is not produced, the sealing surface is free of friction loss and abrasion, materials are saved, the cost is low, the detachment and installation and the maintenance are convenient and rapid, the operation torque is small, and the opening and the closing are flexible.
Description
Technical field
The invention belongs to valve, particularly a kind of double disk parallel gate valve.
Background technique
Valve is the flow of streaming flow in confinement tube, the element of pressure.Be divided into according to application purpose difference and cut off class valve and regulate class valve etc.Cut off class valve and be used as the flowing of cut-out fluid, usually have gate valve, stop valve, ball valve etc.The valve body two ends of stop valve are fluid input and outlet, and enter, go out end and be generally flange or butt welding and connect, small-bore also can be SOCKET WELDING.Usually arrange seal valve seat at horizontal center line upper area in valve body, the sealed member on valve seat top is flap, and flap top is connected with valve rod, and valve stem seal place generally adopts packing seal.Valve rod top is connected with handwheel, and during rotation hand wheel, flap produces ascending, descending campaign with valve rod, forms unlatching or the closedown of stop valve.The another kind of cutting-off valve often adopted is gate valve, and valve body two ends are the entrance and exit of fluid, enter, outlet end is generally flange or be welded to connect.Valve inner is containing space, arranges closedown flashboard in containing space, and containing space two ends arrange seam, stop portion melting welding valve seat.Flashboard adopts T-shaped or alternate manner to be connected as closure member and valve rod head, and the T-shaped screw thread on valve rod top is connected with Stem Mut, and handwheel installed by Stem Mut.Rotate handwheel, close flashboard and produce ascending, descending campaign with valve rod, gate valve is opened or closes.Gate valve can be divided into wedge-type and parallel type by structure.Existing double disk parallel gate valve is automatic seal type and bracing type.Wherein automatic seal type relies on the pressure of medium that flashboard is pushed to outlet side sealing surface of seat, reaches the object of single facer.Usual mounting spring between flashboard, this sealing produces wearing and tearing and scratch usually to sealing surface.And the popular at present bracing type of another kind with top wedge, two shoe brake plates is strutted, be pressed on sealing surface of seat and reach pressure.This sealing structure part is many, and machining accuracy is high, and open and close torque is large, and expense of taking a lot of work is expected, maintenance dismounting trouble.
Summary of the invention
The object of the invention is to overcome above-mentioned technical deficiency, provide a kind of processing simple, sealing is reliable, labor and material saving, maintenance easy accessibility a kind of double disk parallel gate valve.
Technical solution problem of the present invention, the technological scheme adopted is: a kind of double disk parallel gate valve, the upper end round nut being included in Stem Mut fixes a handwheel, be fixedly connected with flat key between Stem Mut with handwheel, pole flange four columns are fixed on valve gap, above filler pressing sleeve, hold-down grid are housed, and hold-down grid pressing plate stud is fixedly connected with valve gap with panel nut, between valve gap and valve body, gasket seal is housed, with bolts.Valve rod upper end is threaded with Stem Mut, and the upper lower shoulder of Stem Mut is equipped with thrust-bearing, above thrust-bearing, bearing gland is housed.Filler and Packing seat are all contained in the stuffing box that valve gap arranges, and valve gap is provided with sealing configuration.Valve rod lower end arranges screw thread, it is characterized in that valve rod is connected with hinge mount, and hinge mount hinge arms two is connected with hinge arms one; Hinge arms one joint pin one is connected with flashboard; Hinge arms one and hinge mount are all contained in flashboard frame and form a shut-off block; Between flashboard frame and valve rod, spring is housed.
Guide rail is established in described valve body; Flashboard frame is provided with guide pins guide groove, and connect with valve rod more than stop pin, stop pin is placed in the guide pins guide groove that two ends on flashboard frame are established; Guide-track groove guide-track groove and guide rail tabling is provided with in flashboard frame 34.
The valve gap of described valve gap sealing position makes tubaeform, and bell mouth angle is α, α=95 ~ 100
°;the shoulder shoulder angle of valve rod lower end is β, β=40 ~ 90 °; The shoulder of the horn mouth and valve rod lower end that valve gap seal position is line contact sealing.
The invention has the beneficial effects as follows: this invention good seal performance, two-sided forced seal, does not leak, and sealing surface is without abrasion and scratch.Save material, cost is low, and dismounting is fast easy to maintenance, and operation moment of torsion is little, opens and closes flexibly.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, illustrate with embodiment.
Fig. 1 is a kind of double disk parallel gate valve stereogram;
Fig. 2 is each component dismounting figure of Fig. 1;
Fig. 3 is the erection drawing of Fig. 1;
Fig. 4 is the component diagram such as valve body, valve gap, valve plate in Fig. 1;
Fig. 5 is valve plate frame thematic map in Fig. 1.
In figure: 1-valve body; 1-1-guide rail; 2-valve seat; 3-flashboard; 4-joint pin-; 5-hinge arms one; 6-hinge mount; 7-valve rod; 8-pad; Flange stud in 9-; Flange nut in 10-; 11-valve gap; 12-pressing plate stud; 13-panel nut; 14-Stem Mut; 15-thrust-bearing; 16-pole flange; 17-handwheel; 18-round nut; 19-flat key; 20-bearing gland; 21-socket head screw; 22-column; 23-hex head bolt; 24-hexagon nut; 25-switch indicator board 26-hold-down grid; 27-filler pressing sleeve; 28-filler; 29-Packing seat; 30-spring; 31-stop pin; 32-joint pin; 33-hinge arms two; 34-flashboard frame; 34-1-anti-rotation cotter way; 34-2-guide-track groove; 35-cotter pin.
Embodiment
Embodiment, with reference to accompanying drawing, a kind of double disk parallel gate valve, the upper end round nut 18 being included in Stem Mut 14 fixes a handwheel 17, is fixedly connected with between Stem Mut 14 with handwheel 17 with flat key 19, and pole flange 16 four columns 22 are fixed on valve gap 11, filler pressing sleeve 27 is equipped with hold-down grid 26 above, hold-down grid 26 pressing plate stud 12 is fixedly connected with valve gap 11 with panel nut 13, and gasket seal 8 is housed between valve gap 11 and valve body 1, with bolts.Valve rod 7 upper end is threaded with Stem Mut 14, and the upper lower shoulder of Stem Mut 14 is equipped with thrust-bearing 15, and thrust-bearing 15 is equipped with bearing gland 20 above.Filler 28 and Packing seat 29 are all contained in the stuffing box that valve gap 11 arranges, and valve gap 11 is provided with sealing configuration.Valve rod 7 lower end arranges screw thread, it is characterized in that valve rod 7 is connected with hinge mount 6, and hinge mount 6 hinge arms 2 33 is connected with hinge arms 1; Hinge arms 1 joint pin one 4-is connected with flashboard 3; Hinge arms 1 and hinge mount 6 are all contained in flashboard frame 34 and form a shut-off block; Spring 30 is housed between flashboard frame 34 and valve rod 7.Effect be when assembling or at Open valve, make sealing surface of seat and ram seal emaciated face from, prevent the abrasion between sealing surface and scratch.
Guide rail 1-1 is established in described valve body 1; Flashboard frame 34 is provided with guide pins guide groove 34-1, connects with stop pin more than 31 valve rod 7, and stop pin 31 is placed in the guide pins guide groove 34-1 established at two ends on flashboard frame 34; Guide-track groove 34-2 guide-track groove 34-2 and guide rail 1-1 tabling is provided with in flashboard frame 34.
The valve gap of described valve gap 11 seals position 11-1 to be made tubaeform, and bell mouth angle is α, α=100
°;the shoulder 7-1 shoulder angle of valve rod 7 lower end is β, β=45 °; Valve gap seals the horn mouth of position 11-1 and the shoulder 7-1 of valve rod 7 lower end is line contact sealing.
Valve seat 2 is housed in valve body 1; Valve body 1 upper end with in flange stud 9 and middle flange nut 10 valve gap 11 is housed; Pole flange 16 is connected with column 22 with socket head screw 21, and column 22 lower end screw thread is connected with valve gap 11; Valve rod 7 above hold-down grid 26 fills a switch indicator board 25 with hexagon socket head cap screw 23 and hexagon nut 24; Hinge arms 2 33 two ends are installed with joint pin 32; Hinge mount 6 stop pin more than 35 valve rod 7 connects.
Design principle of the present invention is: the sealing configuration adopting hinge means to form between two pieces of flashboards 3 parallel to each other is to replace traditional wedge-type or other Parallel gate valve Parallel slide valve structure.Valve opening or when closing, valve seal position flashboard 3 and valve seat 2 leave mutually, avoid the friction damage of sealing surface, even if cause distortion also still can ensure sealing when temperature variation, and will make flashboard choke not open because of high-temperature expansion.Valve seal employing is wear-resisting, resistant material is made, and extends the working life of valve.Be provided with guide rail 1-1 in valve body 1, flashboard frame 34 is provided with guide-track groove 34-2, prevents it from rotating, and moves up and down under the drive of valve rod 7.Flashboard frame 34 is provided with stop pin guide groove 34-1, is connected with valve rod 7 with stop pin 31, stop pin be placed in flashboard frame 34 arrange stop pin guide groove in 34-2, prevent valve rod 7 from rotating.Between flashboard frame 34 and valve rod 7, arrange spring 30, its function is when assembling or at Open valve, ensures the disengaging in sealing surface of seat and ram seal face.On Stem Mut 14, lower shoulder is equipped with thrust-bearing 15, reduces surface friction drag, reduces operation moment of torsion, makes valve switch light and flexible.Bell mouth angle valve gap sealing position 11-1 is α, α=95
°~ 100
°, the boss 7-1 upper shoulder angle on valve rod 7 is 40 ~ 90
°, when contacting, become linear sealing mechanism, sealing effect is better.As long as α with β two angles are different, be right.
Valve operation is simple, rotates handwheel 17 and gets final product switch valve.
Claims (3)
1. a double disk parallel gate valve, the upper end round nut (18) being included in Stem Mut (14) fixes a handwheel (17), be fixedly connected with flat key (19) between Stem Mut (14) with handwheel (17), pole flange (16) is fixed on valve gap (11) with four columns (22), filler pressing sleeve (27) is equipped with hold-down grid (26) above, hold-down grid (26) pressing plate stud (12) is fixedly connected with valve gap (11) with panel nut (13), gasket seal (8) is housed between valve gap (11) and valve body (1), with bolts, valve rod (7) upper end is threaded with Stem Mut (14), and the upper lower shoulder of Stem Mut (14) is equipped with thrust-bearing (15), and thrust-bearing (15) is equipped with bearing gland (20) above, filler (28) and Packing seat (29) are all contained in the stuffing box that valve gap (11) arranges, and valve gap (11) is provided with sealing configuration, valve rod (7) lower end arranges screw thread, it is characterized in that valve rod (7) is connected with hinge mount (6), and hinge mount (6) hinge arms two (33) is connected with hinge arms one (5), hinge arms one (5) joint pin one (4) is connected with flashboard (3), hinge arms one (5) and hinge mount (6) are all contained in a composition shut-off block in flashboard frame (34), spring (30) is housed between flashboard frame (34) and valve rod (7).
2. a kind of double disk parallel gate valve according to claim 1, is characterized in that establishing guide rail (1-1) in described valve body (1); Flashboard frame (34) is provided with guide pins guide groove (34-1), connects with the remaining valve rod (7) of stop pin (31), and stop pin (31) is placed in the guide pins guide groove (34-1) that the upper two ends of flashboard frame (34) are established; Guide-track groove (34-2) guide-track groove (34-2) and guide rail (1-1) tabling is provided with in flashboard frame (34).
3. a kind of double disk parallel gate valve according to claim 1, the valve gap that it is characterized in that described valve gap (11) seals position (11-1) and makes tubaeform, bell mouth angle is α, α=100
°;shoulder (7-1) the shoulder angle of valve rod (7) lower end is β, β=45 °; Valve gap seals the horn mouth at position (11-1) and the shoulder (7-1) of valve rod (7) lower end is line contact sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246446.7A CN104896129A (en) | 2015-05-15 | 2015-05-15 | Parallel type double-gate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246446.7A CN104896129A (en) | 2015-05-15 | 2015-05-15 | Parallel type double-gate gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104896129A true CN104896129A (en) | 2015-09-09 |
Family
ID=54028982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510246446.7A Pending CN104896129A (en) | 2015-05-15 | 2015-05-15 | Parallel type double-gate gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104896129A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909810A (en) * | 2016-06-24 | 2016-08-31 | 江苏锐鸿机械有限公司 | Central-acting gate valve |
| CN106609856A (en) * | 2015-10-22 | 2017-05-03 | 中核苏阀科技实业股份有限公司 | Gate valve with rapid pressure relief function for voltage regulator |
| CN106763848A (en) * | 2017-01-06 | 2017-05-31 | 鞍山电磁阀有限责任公司 | A kind of folding wedge face activity flashboard group driven using machinery and internal pressure |
| CN109185469A (en) * | 2018-10-10 | 2019-01-11 | 中冶南方工程技术有限公司 | The self-locking two way seal gate valve of energy |
| CN109210224A (en) * | 2018-10-10 | 2019-01-15 | 中冶南方工程技术有限公司 | Two way seal gate valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US961594A (en) * | 1907-03-14 | 1910-06-14 | Schutte & Koerting Co | Gate-valve. |
| CN2217150Y (en) * | 1995-04-06 | 1996-01-10 | 王松录 | Gate valve of double plate level movement type |
| CN201206635Y (en) * | 2008-05-20 | 2009-03-11 | 核电秦山联营有限公司 | Electric Valve |
| CN204114209U (en) * | 2014-09-15 | 2015-01-21 | 良精集团有限公司 | A kind of self-tightening sealing plate valve |
| CN204985792U (en) * | 2015-05-15 | 2016-01-20 | 营口埃斯威特阀门有限公司 | Parallel gate valve |
-
2015
- 2015-05-15 CN CN201510246446.7A patent/CN104896129A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US961594A (en) * | 1907-03-14 | 1910-06-14 | Schutte & Koerting Co | Gate-valve. |
| CN2217150Y (en) * | 1995-04-06 | 1996-01-10 | 王松录 | Gate valve of double plate level movement type |
| CN201206635Y (en) * | 2008-05-20 | 2009-03-11 | 核电秦山联营有限公司 | Electric Valve |
| CN204114209U (en) * | 2014-09-15 | 2015-01-21 | 良精集团有限公司 | A kind of self-tightening sealing plate valve |
| CN204985792U (en) * | 2015-05-15 | 2016-01-20 | 营口埃斯威特阀门有限公司 | Parallel gate valve |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106609856A (en) * | 2015-10-22 | 2017-05-03 | 中核苏阀科技实业股份有限公司 | Gate valve with rapid pressure relief function for voltage regulator |
| CN105909810A (en) * | 2016-06-24 | 2016-08-31 | 江苏锐鸿机械有限公司 | Central-acting gate valve |
| CN106763848A (en) * | 2017-01-06 | 2017-05-31 | 鞍山电磁阀有限责任公司 | A kind of folding wedge face activity flashboard group driven using machinery and internal pressure |
| CN109185469A (en) * | 2018-10-10 | 2019-01-11 | 中冶南方工程技术有限公司 | The self-locking two way seal gate valve of energy |
| CN109210224A (en) * | 2018-10-10 | 2019-01-15 | 中冶南方工程技术有限公司 | Two way seal gate valve |
| CN109185469B (en) * | 2018-10-10 | 2024-06-21 | 中冶南方工程技术有限公司 | Self-locking bidirectional sealing gate valve |
| CN109210224B (en) * | 2018-10-10 | 2024-06-21 | 中冶南方工程技术有限公司 | Bidirectional sealing sluice valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104896129A (en) | Parallel type double-gate gate valve | |
| CN108757973B (en) | Double-flashboard gate valve | |
| CN204985792U (en) | Parallel gate valve | |
| CN2913778Y (en) | Escape valve fast switch over device for double-close type valve satisfying backup discharging ability | |
| CN203131068U (en) | High-sealing wedge gate valve | |
| CN103410997A (en) | High-pressure-relief type parallel-double-gate single side hard sealing gate valve | |
| CN105065701A (en) | Hard sealing lifting type brake plug valve and control method thereof | |
| CN203442188U (en) | Wear-resistant expanding parallel double-gate-disc gate valve | |
| CN105318025A (en) | Double-disc wedge gate valve adopting composite spring connection | |
| CN210484681U (en) | Electric three-way stop valve | |
| CN201627951U (en) | Rising stem knife type gate valve | |
| CN110848429A (en) | Cut-off double-purpose valve | |
| CN213982093U (en) | Jacketed type heat-insulating gate valve | |
| CN201250916Y (en) | Wedge-type dual encapsulation differential-swing double disc valve | |
| CN210770333U (en) | Sand prevention gate valve | |
| CN203131074U (en) | Wedge gate valve | |
| CN210716044U (en) | Electric gate valve for high-pressure gas pipeline | |
| CN208565787U (en) | A kind of angle stop valves of dual-seal | |
| CN203098925U (en) | Pressure-balanced type cock plug valve | |
| CN201535359U (en) | Energy-saving balance valve | |
| CN201262241Y (en) | Wedge-type sluice valve for preventing out of control | |
| CN203131075U (en) | Double-sealing wedge gate valve with reinforcing gate plate | |
| CN105370935A (en) | Y-shaped stop-check valve | |
| CN217177485U (en) | Stable light-torque ball valve | |
| CN219242677U (en) | Novel self-balancing gate valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150909 |