CN103185144B - Nuclear power steam surperlight type water cooling pressure self-enclosed valve - Google Patents
Nuclear power steam surperlight type water cooling pressure self-enclosed valve Download PDFInfo
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- CN103185144B CN103185144B CN201210011515.2A CN201210011515A CN103185144B CN 103185144 B CN103185144 B CN 103185144B CN 201210011515 A CN201210011515 A CN 201210011515A CN 103185144 B CN103185144 B CN 103185144B
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Abstract
A kind of nuclear power steam surperlight type water cooling pressure self-enclosed valve, it comprises valve body, an air chamber is provided with in valve body, import and outlet, flap is enclosed in outlet port, pilot hole is provided with in flap, inside lining sleeve is enclosed within valve gap, gap is had between inside lining sleeve and flap, No. two air chambers are formed in inside lining sleeve, valve gap is fixed on valve body, valve rod and switch guide accessory alive connect, switch guide and valve rod fuse accessory alive connect, valve rod and switch guide and valve rod fuse are all sealed by closed cylinder, valve rod point chock plug is only had to be exposed to outside pilot hole, fuse internal magnetic ring is had in valve rod fuse.It becomes the pressure itself of steam the power making valve Push And Release, realizes without sealing surperlight type water cooling of living.
Description
Technical field
The present invention relates to a kind of valve, more precisely a kind of power change of the pressure itself of nuclear power steam being made valve Push And Release, realizes without the water-cooled pressure self-enclosed valve of sealing surperlight type of living.
Background technique
The application of the mankind to valve has the history of centuries, and that uses till today mainly contains stop valve, gate valve, butterfly valve and ball valve etc. always; And the seal ring requisite lifelong accessory that is exactly always any one valve.Gap sealing (sealing of living) between particularly static valve gap and valve rod rotate, and be sealed in the various valves of High Temperature High Pressure, it adjusts, it is just more frequent to change seal ring.Although world today's new and high technology is fast-developing, just promote in the material of seal ring also, and implemented to get rid of in valve design and use seal ring or improve seal ring Environmental Conditions and alleviate the excellent process of valve Push And Release dynamics.Such as, an inside nominal diameter is the stop valve of 100mm, is used in the medium of nominal pressure 8Mpa, and its strength of closing must be greater than 6280Kg, and adopts the scheme of the design, only needs the startup strength of 90Kg.Too large just because of the dynamics of closing, when just having had Dalian on July 16 great Du Shan Shenzhen and Hong Kong piping for tank farm knocking fuel in 2010, need tens lads to carry out operated in turn just the valve of oil sources to be barred up, and for example in March, 2011, the large-scale generator set for subsequent use of Fukushima, Japan nuclear plant is washed away by tsunami, without large power supply, valve of not opening adds does not intake and waits " raw material rod " helplessly and hardening cracked and cause nuclear leakage.If utilize the immediate action valve of this technology, a people light is only needed to carry, can quick closedown.
World today's energy crisis is extremely urgent, and the focus that the safety of nuclear power more causes dispute.So the application of this technology, not only can reduce " adding water " expense of nuclear power plant's writing, and can reduce nuclear power plant's many groups Generator Set emergent and standby for it; Especially a guarantee is reliably added to Nuclear Safety.
Summary of the invention
The object of the present invention is to provide a kind of power change of the pressure itself of steam being made valve Push And Release, realize without the water-cooled pressure self-enclosed valve of sealing surperlight type of living.
In order to achieve the above object, the solution that the present invention takes is: a kind of nuclear power steam surperlight type water cooling pressure self-enclosed valve, it comprises valve body, an air chamber is provided with in valve body, import and outlet, flap is enclosed in outlet port, pilot hole is provided with in flap, inside lining sleeve is enclosed within valve gap, gap is had between inside lining sleeve and flap, No. two air chambers are formed in inside lining sleeve, valve gap is fixed on valve body, valve rod and switch guide accessory alive connect, switch guide and valve rod fuse accessory alive connect, valve rod and switch guide and valve rod fuse are all sealed by closed cylinder, valve rod point chock plug is only had to be exposed to outside pilot hole, fuse internal magnetic ring is had in valve rod fuse.
This valve takes totally enclosed mode, namely exactly the gap closed cylinder between valve gap and valve rod is closed, change motive sealing is static seal, or utilizes the technique of welding fixedly to weld carrying out with closed cylinder bottom cooling cylinder, makes it never leak (eliminating sealing of living).Under inside and outside isolated situation, utilize the suction of high magnetic neodymium iron boron or electromagnetic attraction to draw the Push And Release that valve is implemented in inner valve rod action.But how magnet suction only tens kilograms, play the hundreds of kilogram even effect of several thousand kilograms, the emphasis innovation of this case just.Its method is: valve endosome is arranged respectively two pressure-bearing air chambers.An air chamber is arranged on the surrounding on flap top as the power opening flap; Again No. two air chambers are set at the lower plane of flap, utilize the pressure itself of steam flap and outlet compression to be closed tight (because outlet port belongs to zero pressure).When valve needs to open, as long as by No. two air chamber step-downs a little, the pressure in an air chamber becomes the power opening flap at once.Like this, not only achieved pressure self-enclosed, but also reach self-pressure and open; Not only weight is closed tight but also is opened easily.
Such as: an inside nominal diameter is the stop valve of 100mm, be used in the medium of nominal pressure 8MPa, its strength of closing must be greater than 6280Kg, and adopts the scheme of the design, only need the startup strength of 90Kg, and the dynamics closed reaches as high as more than 8000 kilograms.Its formula is as follows: suppose: inside nominal diameter 100mm, nominal pressure 8MPa, inside nominal diameter 100mm:50 × 50 × 3.14 × 0.8Kg=6280Kg, valve export pipe external diameter
(the highest closed dynamics),
eQSN Φ 165.2mm-0.2mm=165mm (FB Φ), No. two air chambers and flap gap area
xD Φ 11.6mm:5.8 × 5.8 × 3.14 × 0.8Kg=84.5Kg, the in addition deadweight of flap, the visible strength that starts only needs 90Kg; Again through the parameter of screw rod or gear, actual enabling power is not as good as 20Kg.
In order to get rid of the damage of high temperature to valve actuating element of nuclear energy, this valve also takes upside-down mounting and water-cooled mode, is namely connected by heat insulation support pipe with valve gap by cooling cylinder exactly; Cooling cylinder has cooling water intake and outlet, have inner bag, oil storage cylinder (lubricant oil), oil sealing cylinder, switch guide in cooling cylinder, guide rod top has internal thread and the work of valve rod outside thread to join, and following is equipped with rectangular link block and is connected with valve rod fuse; Cooling water circulates outside the tank.Closed cylinder is fixed on bottom cooling cylinder, and closed cylinder is built-in with valve rod fuse, and fuse periphery is embedded with internal magnetic ring.Traction cylinder covers closed cylinder, the outer magnetic ring of traction cylinder just in time with the internal magnetic ring of valve rod fuse in the same horizontal line, the periphery sleeve magnetic cylinder again of traction cylinder outer magnetic ring; Traction cylinder bottom centre is carved with square hole and matches with control screw rod, control limit switch screw rod being equipped with Push And Release, switch base is carved with guide groove to control limit switch by guide rod and can only run up and down, the other end controlling screw rod is power tie point, located by the bearing bottom shoring, shoring is suitable for reading to be fixed on bottom cooling cylinder by screw, and shoring has mode and the maintenance that side door is convenient to limit switch.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, valve body, 2, import, 3, an air chamber, 4, pilot hole, 5, outlet, 6, valve rod point chock plug, 7, lead steam chest, 8, flap, 9, valve rod, 10, No. two air chambers, 11, inside lining sleeve, 12, valve gap, 13, set screw, 14, heat insulation support pipe, 15, circulating water is imported and exported, 16, cooling cylinder, 17, switch guide, 18, oil storage cylinder, 19, oil sealing cylinder, 20, cooling cylinder inner bag, 21, link block, 22, closed cylinder fixes spiral shell, 23, valve rod fuse, 24, shoring fixes spiral shell, 25, closed cylinder, 26, fuse internal magnetic ring, 27, traction cylinder outer magnetic ring, 28, envelope magnet ring, 29, shoring, 30 traction cylinders, 31, shoring side door, 32, guide groove, 33, guide rod, 34, limit switch, 35, control screw rod, 36 bearings, 37 power tie points.
Specific embodiments
Below in conjunction with embodiment and accompanying drawing thereof, description is remake to the present invention.
See Fig. 1, a kind of nuclear power steam surperlight type water cooling pressure self-enclosed valve, it comprises valve body 1, an air chamber 3 is provided with in valve body 1, import 2 and outlet 5, flap 8 is enclosed in outlet 5 place, pilot hole 4 is provided with in flap 8, inside lining sleeve 11 is enclosed within valve gap 12, gap is had between inside lining sleeve 11 and flap 8, No. two air chambers 10 are formed in inside lining sleeve 11, valve gap 12 is fixed on valve body 1 by set screw 13, valve rod 9 and switch guide 17 accessory alive connect, switch guide 17 and valve rod fuse 23 are connect by link block 21 accessory alive, valve rod 9 and switch guide 17 and valve rod fuse 23 are all sealed by closed cylinder 25, valve rod point chock plug 6 is only had to be exposed to outside pilot hole 4, fuse internal magnetic ring 26 is had in valve rod fuse 23.
See Fig. 1, described valve rod 9 is connect by the internal thread accessory alive of heat insulation support pipe 14 and switch guide 17, cooling cylinder 16 is fixedly connected with heat insulation support pipe 14, inner bag 20 is had in cooling cylinder 16, oil storage cylinder 18, oil sealing cylinder 19, switch guide 17, the center of switch guide 17 is running spaces of valve rod 9, all square hole is carved with in the middle of the lower central of switch guide 17 and the top of valve rod fuse 23, switch guide 17 and valve rod fuse 23 are connect by rectangular link block 21 accessory of carrying out living, closed cylinder 25 is fixed on the bottom of cooling cylinder 16 by closed cylinder screw 22, closed cylinder 25 is built-in with valve rod fuse 23, valve rod fuse 23 periphery is embedded with fuse internal magnetic ring 26, traction cylinder 30 covers closed cylinder 25, the periphery of traction cylinder 30 is embedded with traction cylinder outer magnetic ring 27, traction cylinder outer magnetic ring 27 and fuse internal magnetic ring 26 are in the same horizontal line, outside traction cylinder outer magnetic ring 27, cover has envelope magnetic cylinder 28 again, the base plate center of traction cylinder 30 is carved with square hole and is matched with control screw rod 35, control screw rod 35 is equipped with two limit switches 34, control to reach position and pass respectively to put in place, the pedestal of two limit switches 34 is carved with guide groove 32, be equipped with guide rod 33 in guide groove 32 to control limit switch 34 and can only run up and down, the other end controlling screw rod 35 is that power tie point 37 is fixed by bearing 36, bearing 36 is embedded in the bottom of shoring 29, shoring 29 is fixed on the bottom of cooling cylinder 16 by screw 24.
See Fig. 1, described shoring 29 has side door 31, is convenient to debugging and the maintenance of limit switch 34.
See Fig. 1, because this valve has eliminated the common fault of leaking between its valve rod gap of all valves, so this valve takes the method for upside-down mounting, avoid high temperature to the damage of power unit.
See Fig. 1, described pilot hole 4 there is air guide room 7.
See Fig. 1, the exit face of described flap 8 makes triangle, is convenient to the use of flow control.See Fig. 1, described cooling cylinder 16 has circulating water import and export 15, it is second guarantees that power unit prevents from being heated that circulating water imports and exports 15.
See Fig. 1, the square hole that the central space of described switch guide 17 and link block 21 are settled is isolated, avoids the heat of thread gaps to flow into closed cylinder 25 and damages fuse internal magnetic ring 26.
See Fig. 1, described oil storage cylinder 18, oil is wherein available to the use of valve rod fuse 23 lubrication.Described oil sealing cylinder 19 implements with the physical principle that oily light-water is heavy.Because this valve is the mode of upside-down mounting, in use, from heat insulation support bar 14 suitable for reading until in closed cylinder 25 end be all accumulate static condensed water for a long time.Described cooling cylinder inner bag 20, its wall thickness must meet the requirement of pressure.Described valve rod fuse 23 comprises fuse internal magnetic ring 26, and both entirety is all be wrapped in by anticorrosive, prevents the damage of magnet.Described envelope magnet ring 28, to guarantee that magnetic never disappears.
See Fig. 1, the working principle of this valve is summarized as follows: flap 8 is enclosed in outlet 5 place, and when steam enters an air chamber 3 from import 2, wherein some vapor enters into No. two air chambers 10 from the gap between inside lining sleeve 11 and flap 8.Due to the gap between valve rod 9 and valve gap 12 be closed cylinder 25 close, so the pressure forming fast No. two air chambers 10 and an air chamber 3 is equal to; At this moment zero pressure is belonged to owing to exporting 5, so valve port is closed tight by the pressure of No. two air chambers 10 by flap 8.Here it is inside and outside isolated (refer to valve rod 9 and the gap between switch guide 17 and cooling cylinder 16 be closed cylinder 25 close) situation under, realize pressure self-enclosed.Pressure is higher to close tighter.The unlatching of valve: the entirety of valve rod 9 and switch guide 17, valve rod fuse 23 is all arranged among the steam of closed cylinder 25 pressure, only be exposed to outside pilot hole 4 with regard to valve rod point chock plug 6, due to pilot hole 4 cross section minimum (accounting for 1.5% of valve nominal flow path), so the dynamics of opening is extremely light.The power opened carrys out ultromotivity tie point 37 and drives traction cylinder 30 in rotation, and due to the strength of fuse internal magnetic ring 26 adhesive, make valve rod fuse 23 also in rotation, valve rod 9 declines at switch guide 17 center along with screw thread.As long as when valve rod point chock plug 6 is lowered by 0.10 millimeter, the steam around it rapidly toward outlet 5 sluicings, simultaneously by valve rod point chock plug 6 depress, makes pilot hole 4 drain at full capacity, the pressure drop at this moment in No. two air chambers 10 from pilot hole 4; When the pressure of a pressure ratio air chamber 3 of No. two air chambers 10 is lower slightly, its flap 8 nature is turned down by the pressure of an air chamber 3, thread load is alleviated, only plays metering function.When the space of No. two air chambers 10 becomes more and more less, its steam is extruded from pilot hole 4; Meanwhile, the backlash of pilot hole 4 discharge of steam also helps the decline of flap 8.As can be seen here, no matter the vapor pressure used has much, as long as the pressure of No. two air chambers 10 is slightly reduced to an air chamber 3, it is just opened easily naturally.The closedown (recovery) of valve: due to the adhesive strength of internal magnetic ring 26 and outer magnetic ring 27, as long as power point carries out reversing make valve rod 9 toward rising (because of under the situation of pressure ad eundem, ascensional dynamics is extremely light), valve rod point chock plug 6 is made to make up in pilot hole 4, along with flap 8 continues to rise, the space of No. two air chambers 10 expands gradually, and the higher steam of pressure from the gap of flap 8 and inside lining sleeve 11 constantly to just filling in No. two air chambers 10 of expansion space; Just due to the filling of this burst of strength, make flap 8 can not rebound by the pressure of an air chamber 3, more make valve rod 9 thread load alleviate, although such screw thread reversion reset, be actually intended to control flow close at a slow speed; When flap 8 closes to the extreme, because the vapor pressure of outlet 5 is gradually in reduction, and the pressure of No. two air chambers 10 is increasing gradually, so close more and more tighter.Achieve pressure self-enclosed.
Claims (6)
1. a nuclear power steam surperlight type water cooling pressure self-enclosed valve, it is characterized in that: it comprises valve body (1), an air chamber (3) is provided with in valve body (1), import (2) and outlet (5), flap (8) is enclosed in outlet (5) place, pilot hole (4) is provided with in flap (8), inside lining sleeve (11) is enclosed within valve gap (12), gap is had between inside lining sleeve (11) and flap (8), No. two air chambers (10) are formed in inside lining sleeve (11), valve gap (12) is fixed on valve body (1) by set screw (13), valve rod (9) and switch guide (17) accessory alive connect, switch guide (17) and valve rod fuse (23) are connect by link block (21) accessory alive, valve rod (9) and switch guide (17) and valve rod fuse (23) are all sealed by closed cylinder (25), valve rod point chock plug (6) is only had to be exposed to outside pilot hole (4), fuse internal magnetic ring (26) is had in valve rod fuse (23),
Described valve rod (9) is connect by the internal thread accessory alive of heat insulation support pipe (14) and switch guide (17), cooling cylinder (16) is fixedly connected with heat insulation support pipe (14), inner bag (20) is had in cooling cylinder (16), oil storage cylinder (18), oil sealing cylinder (19), switch guide (17), the center of switch guide (17) is the running space of valve rod (9), all square hole is carved with in the middle of the lower central of switch guide (17) and the top of valve rod fuse (23), switch guide (17) and valve rod fuse (23) are connect by rectangular link block (21) accessory of carrying out living, closed cylinder (25) is fixed on the bottom of cooling cylinder (16) by closed cylinder screw (22), closed cylinder (25) is built-in with valve rod fuse (23), valve rod fuse (23) periphery is embedded with fuse internal magnetic ring (26), traction cylinder (30) covers closed cylinder (25), the periphery of traction cylinder (30) is embedded with traction cylinder outer magnetic ring (27), traction cylinder outer magnetic ring (27) and fuse internal magnetic ring (26) are in the same horizontal line, outside traction cylinder outer magnetic ring (27), cover has envelope magnetic cylinder (28) again, the base plate center of traction cylinder (30) is carved with square hole and is matched with control screw rod (35), control screw rod (35) is equipped with two limit switches (34), control to reach position and pass respectively to put in place, the pedestal of two limit switches (34) is carved with guide groove (32), be equipped with guide rod (33) in guide groove (32) to control limit switch (34) and can only run up and down, the other end controlling screw rod (35) is that power tie point (37) is fixed by bearing (36), bearing (36) is embedded in the bottom of shoring (29), shoring (29) is fixed on the bottom of cooling cylinder (16) by screw (24).
2. nuclear power steam surperlight type water cooling pressure self-enclosed valve according to claim 1, is characterized in that: described shoring (29) has side door (31).
3. nuclear power steam surperlight type water cooling pressure self-enclosed valve according to claim 1, is characterized in that: described pilot hole (4) has air guide room (7).
4. nuclear power steam surperlight type water cooling pressure self-enclosed valve according to claim 1, is characterized in that: the exit face of described flap (8) makes triangle.
5. nuclear power steam surperlight type water cooling pressure self-enclosed valve according to claim 1, is characterized in that: described cooling cylinder (16) has circulating water import and export (15).
6. nuclear power steam surperlight type water cooling pressure self-enclosed valve according to claim 1, is characterized in that: the square hole that the central space of described switch guide (17) and link block (21) are settled is isolated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210011515.2A CN103185144B (en) | 2012-01-03 | 2012-01-03 | Nuclear power steam surperlight type water cooling pressure self-enclosed valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210011515.2A CN103185144B (en) | 2012-01-03 | 2012-01-03 | Nuclear power steam surperlight type water cooling pressure self-enclosed valve |
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| CN103185144A CN103185144A (en) | 2013-07-03 |
| CN103185144B true CN103185144B (en) | 2015-10-21 |
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| CN201210011515.2A Expired - Fee Related CN103185144B (en) | 2012-01-03 | 2012-01-03 | Nuclear power steam surperlight type water cooling pressure self-enclosed valve |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171510A (en) * | 1996-07-18 | 1998-01-28 | 孙平 | Magnetically coupled stop valve |
| CN1211696A (en) * | 1997-09-18 | 1999-03-24 | 王庆宪 | Electric regulating valve |
| CN2646492Y (en) * | 2003-10-13 | 2004-10-06 | 杨树基 | Full-sealing solenoid operated valve |
| CN202392129U (en) * | 2012-01-03 | 2012-08-22 | 陈光焕 | Nuclear power steam ultra-light type water cooling self-pressing and self-sealing valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101142789B1 (en) * | 2010-04-20 | 2012-05-08 | 주식회사 스페이스솔루션 | Solenoid Latch Valve used for High Pressure and High Flow Rate |
-
2012
- 2012-01-03 CN CN201210011515.2A patent/CN103185144B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171510A (en) * | 1996-07-18 | 1998-01-28 | 孙平 | Magnetically coupled stop valve |
| CN1211696A (en) * | 1997-09-18 | 1999-03-24 | 王庆宪 | Electric regulating valve |
| CN2646492Y (en) * | 2003-10-13 | 2004-10-06 | 杨树基 | Full-sealing solenoid operated valve |
| CN202392129U (en) * | 2012-01-03 | 2012-08-22 | 陈光焕 | Nuclear power steam ultra-light type water cooling self-pressing and self-sealing valve |
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| Publication number | Publication date |
|---|---|
| CN103185144A (en) | 2013-07-03 |
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Granted publication date: 20151021 Termination date: 20180103 |