CN103836240B - A kind of valve with discharge mechanism - Google Patents
A kind of valve with discharge mechanism Download PDFInfo
- Publication number
- CN103836240B CN103836240B CN201410067824.0A CN201410067824A CN103836240B CN 103836240 B CN103836240 B CN 103836240B CN 201410067824 A CN201410067824 A CN 201410067824A CN 103836240 B CN103836240 B CN 103836240B
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- Prior art keywords
- valve
- discharge mechanism
- pressure port
- institutestate
- piston
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
A kind of valve with discharge mechanism, relate to the pressure reduction Unloading Technology field of heavy caliber mesohigh stop valve, one end of valve rod arranges piston apparatus, top cover is arranged at valve body top and is positioned at piston apparatus top, piston apparatus, top cover and valve body form counter balance pocket jointly, whether counter balance pocket and high pressure port are communicated with by flip flop equipment control, and whether counter balance pocket and low-pressure port are communicated with by guiding valve control. The object of the present invention is to provide a kind of valve with discharge mechanism, easy and simple to handle, and unlatching resistance can be by complete equipilibrium.
Description
Technical field
The pressure reduction Unloading Technology field that the present invention relates to heavy caliber mesohigh stop valve, is specifically related toA kind of valve with discharge mechanism.
Background technology
For mesohigh stop valve, generally can utilize valve both sides pressure reduction that flap is withstood on valve seat,To ensure the reliability of valve seal, in opening process, need to overcome medium and act on flapPressure, but this stop valve is opened moment, the excessive valve that causes is difficult for opening. At present, solveThe Main Means that this problem adopts is to offer bypass, before valve opening, first passes through otherPath reduces valve both sides pressure reduction, and bypass is divided into two kinds of internal bypass and outer bypass, internal bypassTypical structure is on flap, to offer inner flow passage, when Open valve, first opens inner flow passage and makes valveBoth sides pressure reduction reduces, but internal bypass is only applicable to small-bore stop valve. Outer bypass is at stop valveOutside increases a by-passing valve, and makes it in parallel with stop valve, but outer bypass takes up room greatly,Complicated operation, pressure boundary is many, security reliability is low. In addition, no matter be internal bypass to be set alsoBe outer bypass, the unlatching resistance of valve all can only reduce and can not be by complete equipilibrium.
Summary of the invention
For the defect existing in prior art, the object of the present invention is to provide a kind of with unloadingCarry the valve of device, easy and simple to handle, and unlatching resistance can be by complete equipilibrium.
For reaching above object, the technical scheme that the present invention takes is: a kind of with discharge mechanismValve, comprise valve body, top cover and be arranged at the valve rod in valve body, when after valve opening, be situated betweenMatter flows to low-pressure port by valve from high pressure port, also comprises the unloading dress being integrated in valve bodyPut, described discharge mechanism comprises flip flop equipment, guiding valve and piston apparatus, and described piston apparatus is establishedBe placed in one end of valve rod, described top cover is arranged at valve body top and is positioned at piston apparatus top, instituteState piston apparatus, top cover and valve body and jointly form counter balance pocket; Described counter balance pocket and high pressure port are logicalCross first flow and be communicated with, on described first flow, flip flop equipment is set, for controlling first flowSwitching; Described counter balance pocket and low-pressure port are communicated with by the second runner, on described the second runnerGuiding valve is set, for controlling the switching of the second runner.
On the basis of technique scheme, the other end of described valve rod arranges flap, described valveBody bottom is provided with the valve seat for sealing, and described flap is fastened on valve seat.
On the basis of technique scheme, described piston apparatus comprises sliding sleeve and is arranged at sliding sleeveInterior dummy piston, described sliding sleeve interference fit is fixed in valve body, and described dummy piston is sheathedIn valve rod end, and fix by locking nut.
On the basis of technique scheme, described piston apparatus also comprises and is sheathed on successively valve rodPiston packing ring and snap ring, described piston packing ring is close to dummy piston and part is sheathed on snap ring.
On the basis of technique scheme, described flip flop equipment comprises housing, body, rotationDevice and drive unit, described body inserts housing and fixes by end cap, in described body, establishesPut large chamber and loculus, described large chamber is communicated with high pressure port, and described loculus is communicated with low-pressure port,In described loculus, run through discharge arm is set, one end of described discharge arm connects little flap, and little valveLobe is arranged in large chamber, and the other end of described discharge arm is connected with tumbler by feeler lever, instituteState tumbler drives discharge arm to move back and forth under the effect of drive unit.
On the basis of technique scheme, the described discharge arm other end extends body sheathedCheck ring, arranges spring washer between described check ring and body, and check ring is outer sheathedButterfly spring, described check ring one end has outer, described butterfly spring two ends be held in spring washer andBetween described outer.
On the basis of technique scheme, described tumbler comprises tooth bar, pulley, spiral arm,Described tooth bar connecting drive device, described spiral arm is y-type structure, its three branches respectively withFeeler lever, housing and pulley are connected, and in the time of valve closing, described pulley is placed in the groove of tooth bar.
On the basis of technique scheme, described guiding valve comprises slide valve lever and bonnet, described cunningValve rod inserts the second runner, and the one end in described slide valve lever far from equilibrium chamber arranges bonnet, described valveBetween bar and bonnet, be pressed into spring, described bonnet is fixed on valve body.
Beneficial effect of the present invention is:
1. the discharge mechanism of this valve is integrated in valve body, and integrated degree is high, takes up room little.
2. the discharge mechanism of this valve directly promotes spiral arm by drive unit and triggers, withoutPeople is for carrying out unloading operation, and automaticity is high, dependable performance.
3. the counter balance pocket in this valve is communicated with high pressure port respectively, another by selecting dummy pistonReasonable compression area, the counter balance pocket opening force that dummy piston can be subject to is adjusted to and flapThe high pressure port back pressure being subject to equates, thereby complete equipilibrium valve opening resistance ensures valveOpen smooth and easy.
Brief description of the drawings
Fig. 1 is the structural principle schematic diagram of the present invention with the valve of discharge mechanism.
Fig. 2 is the structural representation of piston apparatus in Fig. 1.
Fig. 3 is the structural representation of flip flop equipment in Fig. 1.
Fig. 4 is the structural representation of guiding valve in Fig. 1.
Reference numeral: counter balance pocket 1; Flip flop equipment 2, drive unit 20, end cap 21, body22, discharge arm 23, little flap 24, check ring 25, latch 26, spring washer 27,Butterfly spring 28, housing 29; Guiding valve 3, slide valve lever 31, bonnet 32, nut 33, spring 34;Piston apparatus 4, sliding sleeve 41, dummy piston 42, piston packing ring 43, snap ring 44, locking screwFemale 45; Valve body 51, valve rod 52, top cover 53, flap 54, valve seat 55; First flow 61,The second runner 62; High pressure port 71, low-pressure port 72; Tumbler 8, tooth bar 81 is slidingWheel 82, spiral arm 83, feeler lever 84, bearing pin 85, mandrel 86; The first through hole 91, the second is logicalHole 92.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As shown in Figure 1, the present invention with the valve of discharge mechanism comprise valve body 51, valve rod 52,Top cover 53, flap 54, base 55, described discharge mechanism comprises flip flop equipment 2, guiding valve 3With piston apparatus 4, described valve rod 52 is arranged in valve body 51, one end of described valve rod 52Piston apparatus 4 is set, and described top cover 53 is arranged at valve body 51 tops and is positioned at piston apparatus 4Top, the other end of described valve rod 52 arranges flap 54, and described valve seat 55 is arranged at valve body51 bottoms, described flap 54 is fastened on valve seat 55, and when after valve opening, valve rod 52 drivesFlap 54 moves downward, and flap 54 separates with valve seat 55, medium by valve from high-pressure sideMouth 71 flows to low-pressure port 72. Described piston apparatus 4, top cover 53 and the common shape of valve body 51Become counter balance pocket 1; Described counter balance pocket 1 and high pressure port 71 are communicated with by first flow 61, instituteState on first flow 61 flip flop equipment 2 is set, for controlling the switching of first flow 61; InstituteState counter balance pocket 1 and low-pressure port 72 and be communicated with by the second runner 62, described the second runner 62On guiding valve 3 is set, for controlling the switching of the second runner 62.
As depicted in figs. 1 and 2, described piston apparatus comprises sliding sleeve 41 and is arranged at sliding sleeve 41Interior dummy piston 42, piston packing ring 43, snap ring 44, locking nut 45, described sliding sleeve41 interference fit are fixed in valve body 51, described locking nut 45, dummy piston 42, aliveChoker block circle 43, snap ring 44 are inwardly sheathed on valve rod 52 successively, and described snap ring 44 is cut for lineBe slit into the circulus of pintongs, respectively the pintongs of snap ring 44 inserted when mounted to valve rod 52Locating slot is combined into a complete circulus, and then put piston packing ring 43 and contained,Limit its disengaging. Described snap ring 44 and locking nut 45 are for being fixed on dummy piston 42Valve rod 52, dummy piston 42 forms sliding friction pair with sliding sleeve 41 inwalls, at valve openingIn process, dummy piston 42 moves up and down along sliding sleeve 41 inwalls with valve rod 52.
As shown in figures 1 and 3, described flip flop equipment 2 comprises housing 29, body 22, turnsMoving device 8 and drive unit 20, described body 22 inserts housing 29 solid by end cap 21Fixed, described body 22 is divided into large chamber and loculus, and described large chamber and housing 29 are provided with the first through hole91 for being communicated with large chamber and high pressure port 71, and described loculus and housing 29 are provided with the second through hole92 for being communicated with loculus and low-pressure port 72. In described loculus, run through discharge arm 23 is set, instituteOne end of stating discharge arm 23 connects little flap 24, and little flap 24 is arranged in large chamber, instituteThe other end of stating discharge arm 23 extends body 22 sheathed check ring 25, described springBetween back-up ring 25 and body 22, spring washer 27 is set, the outer sheathed butterfly spring 28 of check ring 25,Described check ring 25 one end have outer, and described butterfly spring 28 two ends are held in spring washer27 and described outer between. The other end of described discharge arm 23 is by latch 26 and feeler lever 84Fixing, described feeler lever 84 is also connected with tumbler 8, and described tumbler 8 is driving dressPutting under 20 effect drives discharge arm 23 to move back and forth. Described tumbler 8 comprises tooth bar81, pulley 82, spiral arm 83, described tooth bar 81 connecting drive devices 20, described spiral arm 83For y-type structure, the first branch of described spiral arm 83 is connected with feeler lever 84 by screw, instituteState the second branch of cantilever 83 and housing 29 fixing by mandrel 86, the of described cantilever 83Three branches are connected with pulley 82 by bearing pin 85. In the time of valve closing, described pulley 82 is putIn the groove of tooth bar 81, in the time of valve opening, described pulley 82 skids off the recessed of tooth bar 81Groove, and drive spiral arm 83 to trigger discharge arm 23 to move.
As shown in Figure 1 and Figure 4, described guiding valve comprises slide valve lever 31 and bonnet 32, described cunningInsertion second runner 62 of valve rod 31, establish the one end in described slide valve lever 31 far from equilibrium chambeies 1Put bonnet 32, between described valve rod 31 and bonnet 32, be pressed into spring 34, described bonnet 32 is logicalCross nut 33 and be fixed on valve body 51. Described slide valve lever 31 has tiny groove at outer surface along axleType runner, flows and plays throttling action the second runner 62 medium, ensures that counter balance pocket 1 connectsConnecing can accumulation of energy after high pressure port 71. Slide valve lever 31 is withstood on 61 mouthfuls of first flows by spring 34,Form one-way valve structures, prevent that medium from blowing back into counter balance pocket 1 by low-pressure port 72.
In the time of valve opening, drive tooth bar 81 motions to drive spiral arm 83 by drive unit 20Rotate to form leverage around mandrel 86, trigger discharge arm 23 and move, make the first through hole 91Thereby connect and open first flow 61 with the first through hole 92, medium is entered by high pressure port 71Enter counter balance pocket 1, dummy piston 42 is produced to an active force along valve opening direction, fromAnd unlatching resistance on balance flap. In the time of valve closing, dummy piston 42 is along with valve rod 52On move, the interior medium of counter balance pocket 1 is discharged by first flow 61, in the time that valve proximity is closed,The movement of the tooth bar 81 of flip flop equipment, pulley 82 rolls in the groove of tooth bar 81, closesOne runner 61 is firmly pressed on valve seat 55 flap 54, balance under the effect of pressure reductionThe interior unnecessary medium in chamber 1 flows into low-pressure port 72 by the second runner 62, realizes closing of valve.
The present invention is not limited to above-mentioned embodiment, for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications,Within these improvements and modifications are also considered as protection scope of the present invention. In this description, do not do in detailThe content of describing belongs to the known prior art of professional and technical personnel in the field.
Claims (7)
1. with a valve for discharge mechanism, comprise valve body (51), top cover (53) and establishBe placed in the valve rod (52) in valve body (51), when after valve opening, medium by valve from heightPressure side mouth (71) flows to low-pressure port (72), it is characterized in that: also comprise and be integrated in valve body(51) discharge mechanism in, described discharge mechanism comprises flip flop equipment (2), guiding valve (3)And piston apparatus (4), described piston apparatus (4) is arranged at one end of valve rod (52), instituteStating top cover (53) is arranged at valve body (51) top and is positioned at piston apparatus (4) top, instituteState piston apparatus (4), top cover (53) and valve body (51) and jointly form counter balance pocket (1); InstituteState counter balance pocket (1) and high pressure port (71) and be communicated with by first flow (61), described theFlip flop equipment (2) is set, for controlling the switching of first flow (61) on one runner (61);Described counter balance pocket (1) and low-pressure port (72) are communicated with by the second runner (62), described inGuiding valve (3) is set, for controlling the switching of the second runner (62) on the second runner (62);
Described flip flop equipment (2) comprises housing (29), body (22), tumbler (8)And drive unit (20), described body (22) inserts housing (29) and passes through end cap (21)Fixing, described body arranges large chamber and loculus in (22), described large chamber and high pressure port (71)Be communicated with, described loculus is communicated with low-pressure port (72), in described loculus, runs through discharge arm is set(23), one end of described discharge arm (23) connects little flap (24), and little flap (24)Be arranged in large chamber, the other end of described discharge arm (23) is by feeler lever (84) and rotation dressPut (8) and connect, described tumbler (8) drives and unloads under the effect of drive unit (20)Carrying bar (23) moves back and forth.
2. the valve with discharge mechanism as claimed in claim 1, is characterized in that: instituteThe other end of stating valve rod (52) arranges flap (54), and described valve body (51) bottom is provided with useIn the valve seat (55) of sealing, described flap (54) is fastened on valve seat (55).
3. the valve with discharge mechanism as claimed in claim 1, is characterized in that: instituteStating piston apparatus (4) comprises sliding sleeve (41) and is arranged at the dummy piston in sliding sleeve (41)(42), described sliding sleeve (41) interference fit is fixed in valve body (51), and described balance is livedPlug (42) is sheathed on valve rod (52) end, and fixing by locking nut (45).
4. the valve with discharge mechanism as claimed in claim 3, is characterized in that: instituteState piston apparatus (4) also comprise be sheathed on successively valve rod (52) piston packing ring (43) andSnap ring (44), described piston packing ring (43) is close to dummy piston (42) and part is sheathed onSnap ring (44).
5. the valve with discharge mechanism as claimed in claim 1, is characterized in that: instituteState discharge arm (23) other end and extend body (22) sheathed check ring (25), instituteState between check ring (25) and body (22) and spring washer (27) is set, check ring(25) outer sheathed butterfly spring (28), described check ring (25) one end has outer, described inButterfly spring (28) two ends are held between spring washer (27) and described outer.
6. the valve with discharge mechanism as claimed in claim 1, is characterized in that: instituteState tumbler and comprise tooth bar (81), pulley (82), spiral arm (83), described tooth bar (81)Connecting drive device (20), described spiral arm (83) is y-type structure, its three branches are respectivelyBe connected with feeler lever (84), housing (29) and pulley (82), in the time of valve closing, described inPulley (82) is placed in the groove of tooth bar (81).
7. the valve with discharge mechanism as claimed in claim 1, is characterized in that: instituteState guiding valve (3) and comprise slide valve lever (31) and bonnet (32), described slide valve lever (31) insertsThe second runner (62), the one end in described slide valve lever (31) far from equilibrium chamber (1) arranges bonnet(32), between described valve rod (31) and bonnet (32), be pressed into spring (34), described bonnet(32) be fixed on valve body (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067824.0A CN103836240B (en) | 2014-02-26 | 2014-02-26 | A kind of valve with discharge mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067824.0A CN103836240B (en) | 2014-02-26 | 2014-02-26 | A kind of valve with discharge mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103836240A CN103836240A (en) | 2014-06-04 |
| CN103836240B true CN103836240B (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410067824.0A Active CN103836240B (en) | 2014-02-26 | 2014-02-26 | A kind of valve with discharge mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103836240B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2313129Y (en) * | 1997-10-18 | 1999-04-07 | 李汉宝 | Piston guide type electromagnetic valve |
| CN2384046Y (en) * | 1999-07-16 | 2000-06-21 | 李汉宝 | Flow controllable piston guide type electromagnetic valve |
| CN2426051Y (en) * | 2000-05-17 | 2001-04-04 | 上海正丰阀门制造有限公司 | Piston type pressure-releasing and pressure-keeping valve |
| CN2547979Y (en) * | 2002-03-12 | 2003-04-30 | 郭崇 | Pilot pressure valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4377990B2 (en) * | 1999-07-12 | 2009-12-02 | シーケーディ株式会社 | High pressure coolant valve |
| CL2008000317A1 (en) * | 2008-02-01 | 2008-03-28 | Servicios Asoc A M Limitada | PILOT FOR PRESSURE REGULATING VALVE THAT HAS A COMMUNICATION PIPE, BETWEEN THE VALVE CHAMBER AND A HIGH PRESSURE SOURCE, WHICH IS INTERRUPTED BY A CLOSING ELEMENT WITH ELECTRIC OPERATION. |
-
2014
- 2014-02-26 CN CN201410067824.0A patent/CN103836240B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2313129Y (en) * | 1997-10-18 | 1999-04-07 | 李汉宝 | Piston guide type electromagnetic valve |
| CN2384046Y (en) * | 1999-07-16 | 2000-06-21 | 李汉宝 | Flow controllable piston guide type electromagnetic valve |
| CN2426051Y (en) * | 2000-05-17 | 2001-04-04 | 上海正丰阀门制造有限公司 | Piston type pressure-releasing and pressure-keeping valve |
| CN2547979Y (en) * | 2002-03-12 | 2003-04-30 | 郭崇 | Pilot pressure valve |
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| Publication number | Publication date |
|---|---|
| CN103836240A (en) | 2014-06-04 |
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