CN102748491A - Intelligent monitoring maintenance-free electric gate valve - Google Patents
Intelligent monitoring maintenance-free electric gate valve Download PDFInfo
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- CN102748491A CN102748491A CN2012102530944A CN201210253094A CN102748491A CN 102748491 A CN102748491 A CN 102748491A CN 2012102530944 A CN2012102530944 A CN 2012102530944A CN 201210253094 A CN201210253094 A CN 201210253094A CN 102748491 A CN102748491 A CN 102748491A
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Abstract
The invention relates to the field of structures of valves and discloses an intelligent monitoring maintenance-free electric gate valve which comprises a valve body. A valve seat is arranged in the valve body, a bonnet is connected above the valve body, a valve stem is penetratingly arranged on the bonnet, the valve seat and the valve body are connected by means of lip build up welding, the valve seat comprises valve seat sealing surfaces at the upper end and the lower end, a first stellite alloy layer is arranged on each valve seat sealing surface by plasma spurt welding, one end of the valve stem in the valve body is connected with an I-shaped valve plate which comprises valve plate sealing surfaces at the upper end and the lower end, a second stellite alloy layer is arranged on each valve plate sealing surface by plasma spurt welding, and each second stellite alloy layer matches with a corresponding first stellite alloy layer. The valve seat sealing surfaces are provided with stellite alloys by means of plasma spurt welding, and the valve seat and the valve body are connected by the aid of a lip build up welding structure by welding technology, so that the service life is prolonged by more than 2000 times. In addition, the valve plate is forged by an I-shaped structure, and the sealing surfaces are provided with stellite alloys by means of plasma spurt welding, so that sealing effect of the valve is excellent.
Description
Technical field
The present invention relates to the structure field of valve.
Background technique
The U.S. built first horace in the world nineteen forty-two, and the former Soviet Union built up first nuclear power station in the world in 1954.In the Nuclear Power Technology evolution in more than 60 years, formed complete, ripe, advanced nuclear power valve design, test, manufacturing and detection architecture abroad, accumulated a large amount of experiences, the valve products A wide selection of colours and designs of being produced, function admirable, reliability height.The Suhl longevity west nuclear power valve enterprise such as KSB company of the Framatome of the Westinghouse Electric of the U.S., Canadian Velan S. A. S. (Velen), France, Germany is grasping contemporary state-of-the-art nuclear grade valve technology.The nuclear power valve of Velan S. A. S. almost all has good supply of material record in the nuclear power station more than 90% in the world.Many important nuclear levels, non-nuclear grade valve in nuclear island in the nuclear power station and the conventional island in the world; Like Pilot operated safety valve, main steam isolation valve, modulating valve, the crucial nuclear power valve technology such as nuclear level gate valve and the market that have intelligent driving mechanism and possess the inline diagnosis ability all by famous nuclear power valve company monopolizing; Its price is very expensive, is more than 1.5 times of homemade nuclear power valve.
At the aspects such as design, manufacture level, product reliability and ability to provide the auxiliary items of nuclear power valve, domestic so lags behind advanced international standard.Mainly show: most of enterprise lags behind developed country in the lower stage that also only rests on digestion, imitated external advanced product aspect the nuclear power valve production domesticization, can not capture high-end technology market; At high-end nuclear power valve with high content of technology,, on key links such as development and production, do not obtain important breakthrough as yet like main steam isolation valve, heavy caliber safety valve, stabilizer electric Decompression valves, fast opening and closing insulating valve and antiseismic control valve; The structural design aspect, especially Seal Design is unsatisfactory; The intensity of nuclear power valve, stress technique, antidetonation, shock resistance, analysis of fatigue and test method need further to improve; Most domestic valve enterprise manufacturing process falls behind, and weak management far can not satisfy the requirement of national nuclear power developing.
Summary of the invention
The objective of the invention is in order to overcome the deficiency of existing technology, a kind of non-maintaining electric gate valve of intelligent monitoring of good sealing effect is provided.
The objective of the invention is to realize like this: the non-maintaining electric gate valve of intelligent monitoring; Comprise valve body, valve seat is set in the valve body, the top of valve body connects valve gap; Place valve rod on the valve gap; First filler and second filler are set between valve rod and the valve gap, and first filler is arranged on the top of second filler, connects electric actuator on the valve rod of said valve gap top; Said valve seat is connected through the built-up welding of lip limit with valve body, and valve seat comprises the sealing surface of seat at two ends up and down, the difference plasma spray first stellite layer on each sealing surface of seat; One end of the valve rod in the said valve body connects " worker " font valve plate; " worker " font valve plate comprises the sealing surface of valve plate at two ends up and down; The plasma spray second stellite layer on each sealing surface of valve plate, each second stellite layer match with the corresponding first stellite layer respectively.
Sealing surface of seat of the present invention adopts the plasma spray stellite, and valve seat is connected employing lip limit built-up welding structure welding technique with valve body, improve the life-span more than 2000 times.Flashboard adopts " worker " type structure to forge and forms, and sealing surface adopts the plasma spray stellite, makes the good sealing effect of valve.
The lower end of valve gap of the present invention is provided with the valve gap locating slot, and the upper end of valve body is provided with the valve body locating slot, same block of stainless steel is set in valve gap locating slot and valve body locating slot adds the Expanded graphite spiral wound gasket.Flange bolt is loosening in the valve that reliably assurance pipeline pressure fluctuation, and the pipeline temperature difference causes, the sealing effect that middle flange does not leak.Solved the difficult problem that this type valve exists.
On the valve rod between first filler and second filler, the liquid collecting ring is set, on the liquid collecting ring through hole is set, the liquid collecting ring of through hole connects and draws liquid mechanism, draws liquid mechanism and comprises leak detecting device.Middle part at filler is provided with the liquid collecting ring of " worker " type band through hole, is connected to form online detection with drawing liquid mechanism, reliably detects valve leak and leakage rate timely and accurately, has increased the safety reliability in the valve utilization and operation.
The liquid mechanism of drawing of the present invention also comprises autoalarm, draws liquid mechanism and is provided with electromic digit display screen and autoalarm, and when trickle leakage appearred in valve, warning device just sent the leakage alarm signal, simultaneously on digital display screen the accurate recording leakage rate what.
The section of through hole of the present invention is " worker " font.
The present invention be directed to China's nuclear power valve defective and with the gap of external advanced valve; Adopt new structure, new material, design of new processes to form; Novel detection device has voluntarily reliably guaranteed the usability of valve, has guaranteed the sustainable operation of valve, and good sealing effect, intensity are high, anti-seismic performance is good, shock resistance, antifatigue; Novel structure, do not change more than 10 years working life.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is an A portion enlarged view among Fig. 1.
Among the figure, 1 valve body, 1-1 valve body locating slot, 2 valve seats, 2-1 sealing surface of seat, the 2-2 first stellite layer, 3 valve plates; The 3-1 sealing surface of valve plate, the 3-2 second stellite layer, 4 valve rods, 5 pads, 6 stop nuts, 7 valve gaps; 7-1 valve gap locating slot, 8 draw liquid mechanism, 8-1 leak detecting device, 8-2 autoalarm, 8-3 digital display screen, 9-1 first filler; 9-2 second filler, 10 briquettings, 11 pressing plates, 12 electric actuators, 13 liquid collecting rings, 14 through holes.
Embodiment
As shown in Figure 1, for the non-maintaining electric gate valve of intelligent monitoring, comprise valve body 1; Valve seat 2 is set in the valve body 1; Valve seat 2 is connected through the built-up welding of lip limit with valve body 1, and valve seat 2 comprises the sealing surface of seat 2-1 at two ends up and down, and each sealing surface of seat 2-1 goes up the plasma spray first stellite layer 2-2 respectively.The top of valve body 1 connects valve gap 7, and the lower end of valve gap 7 is provided with valve gap locating slot 7-1, and the upper end of valve body 1 is provided with valve body locating slot 1-1, in valve gap locating slot 7-1 and valve body locating slot 1-1, same block of stainless steel is set and adds Expanded graphite spiral wound gasket 5.Place valve rod 4 on the valve gap 7; Stop nut 6 is threaded on the valve rod 4; One end of the valve rod 4 in the valve body 1 connects " worker " font valve plate 3; " worker " font valve plate 3 comprises the sealing surface of valve plate 3-1 at two ends up and down, and each sealing surface of valve plate 3-1 goes up the plasma spray second stellite layer 3-2, and each second stellite layer 3-2 matches with the corresponding first stellite layer 3-1 respectively.The first filler 9-1 and the second filler 9-2 are set between valve rod 4 and the valve gap 7; The first filler 9-1 is arranged on the top of the second filler 9-2; On the valve rod 4 between the first filler 9-1 and the second filler 9-2, liquid collecting ring 13 is set, " worker " font through hole 14 (as shown in Figure 2) are set on the liquid collecting ring 13, the liquid collecting ring 13 at through hole 14 places connects and draws liquid mechanism 8; Draw liquid mechanism 8 and comprise leak detecting device 8-1 and autoalarm 8-2; When trickle leakage appearred in valve, autoalarm 8-2 just sent the leakage alarm signal, simultaneously on digital display screen 8-3 the accurate recording leakage rate what.Above the first filler 9-1, briquetting 10 is set, the top of briquetting 10 is provided with pressing plate 11, and pressing plate 11 is connected with valve gap 7 through bolt, connects electric actuator 12 on the valve rod 4 of valve gap 7 tops.
Claims (5)
1. the non-maintaining electric gate valve of intelligent monitoring; Comprise valve body, valve seat is set in the valve body, the top of valve body connects valve gap; Place valve rod on the valve gap; First filler and second filler are set between valve rod and the valve gap, and first filler is arranged on the top of second filler, connects electric actuator on the valve rod of said valve gap top; It is characterized in that: said valve seat is connected through the built-up welding of lip limit with valve body, and valve seat comprises the sealing surface of seat at two ends up and down, the difference plasma spray first stellite layer on each sealing surface of seat; One end of the valve rod in the said valve body connects " worker " font valve plate; " worker " font valve plate comprises the sealing surface of valve plate at two ends up and down; The plasma spray second stellite layer on each sealing surface of valve plate, each second stellite layer match with the corresponding first stellite layer respectively.
2. the non-maintaining electric gate valve of intelligent monitoring according to claim 1; It is characterized in that: the lower end of said valve gap is provided with the valve gap locating slot; The upper end of valve body is provided with the valve body locating slot, same block of stainless steel is set in valve gap locating slot and valve body locating slot adds the Expanded graphite spiral wound gasket.
3. the non-maintaining electric gate valve of intelligent monitoring according to claim 1; It is characterized in that: on the valve rod between first filler and second filler, the liquid collecting ring is set; On the liquid collecting ring through hole is set, the liquid collecting ring of through hole connects and draws liquid mechanism, draws liquid mechanism and comprises leak detecting device.
4. the non-maintaining electric gate valve of intelligent monitoring according to claim 3 is characterized in that: the said liquid mechanism of drawing also comprises autoalarm.
5. the non-maintaining electric gate valve of intelligent monitoring according to claim 3 is characterized in that: the section of said through hole is " worker " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102530944A CN102748491A (en) | 2012-07-22 | 2012-07-22 | Intelligent monitoring maintenance-free electric gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102530944A CN102748491A (en) | 2012-07-22 | 2012-07-22 | Intelligent monitoring maintenance-free electric gate valve |
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| Publication Number | Publication Date |
|---|---|
| CN102748491A true CN102748491A (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102530944A Pending CN102748491A (en) | 2012-07-22 | 2012-07-22 | Intelligent monitoring maintenance-free electric gate valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315218A (en) * | 2014-09-19 | 2015-01-28 | 陈绪英 | Valve body and flange integrated connection type forged steel gate valve |
| CN109630751A (en) * | 2019-01-27 | 2019-04-16 | 哈电集团哈尔滨电站阀门有限公司 | A kind of intelligent type valve |
| CN112253773A (en) * | 2020-09-23 | 2021-01-22 | 江苏理工学院 | Gate valve with automatic detection function |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB817873A (en) * | 1956-07-20 | 1959-08-06 | Olin Bennie Sangster | Sliding gate valve |
| CN2874165Y (en) * | 2005-12-09 | 2007-02-28 | 北京迪威尔石油天然气技术开发有限公司 | Three-way ball valve with wedge type valve core |
| CN201206635Y (en) * | 2008-05-20 | 2009-03-11 | 核电秦山联营有限公司 | Electric Valve |
| CN201407370Y (en) * | 2009-04-21 | 2010-02-17 | 凯喜姆阀门有限公司 | Nuclear safety-grade electric gate valve |
| CN102155549A (en) * | 2011-04-21 | 2011-08-17 | 昆山维萨阀门有限公司 | Jacketed heat insulation gate valve |
| CN202195093U (en) * | 2011-04-22 | 2012-04-18 | 浙江中南阀门有限公司 | Corrosion resistant abrasion resistant high pressure resistant sluice valve |
| CN102501138A (en) * | 2011-11-01 | 2012-06-20 | 葛俊杰 | Machining process for interchangeable wedge-shaped gates and valve seat |
| CN202327346U (en) * | 2011-11-15 | 2012-07-11 | 神华集团有限责任公司 | High-pressure-difference pressure reducing valve |
| CN102563110A (en) * | 2012-03-14 | 2012-07-11 | 伯特利阀门集团有限公司 | Anti-scouring high-temperature gate valve |
| CN202659935U (en) * | 2012-07-22 | 2013-01-09 | 江苏金晟元特种阀门有限公司 | Intelligent-monitoring maintenance-free electric gate valve |
-
2012
- 2012-07-22 CN CN2012102530944A patent/CN102748491A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB817873A (en) * | 1956-07-20 | 1959-08-06 | Olin Bennie Sangster | Sliding gate valve |
| CN2874165Y (en) * | 2005-12-09 | 2007-02-28 | 北京迪威尔石油天然气技术开发有限公司 | Three-way ball valve with wedge type valve core |
| CN201206635Y (en) * | 2008-05-20 | 2009-03-11 | 核电秦山联营有限公司 | Electric Valve |
| CN201407370Y (en) * | 2009-04-21 | 2010-02-17 | 凯喜姆阀门有限公司 | Nuclear safety-grade electric gate valve |
| CN102155549A (en) * | 2011-04-21 | 2011-08-17 | 昆山维萨阀门有限公司 | Jacketed heat insulation gate valve |
| CN202195093U (en) * | 2011-04-22 | 2012-04-18 | 浙江中南阀门有限公司 | Corrosion resistant abrasion resistant high pressure resistant sluice valve |
| CN102501138A (en) * | 2011-11-01 | 2012-06-20 | 葛俊杰 | Machining process for interchangeable wedge-shaped gates and valve seat |
| CN202327346U (en) * | 2011-11-15 | 2012-07-11 | 神华集团有限责任公司 | High-pressure-difference pressure reducing valve |
| CN102563110A (en) * | 2012-03-14 | 2012-07-11 | 伯特利阀门集团有限公司 | Anti-scouring high-temperature gate valve |
| CN202659935U (en) * | 2012-07-22 | 2013-01-09 | 江苏金晟元特种阀门有限公司 | Intelligent-monitoring maintenance-free electric gate valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315218A (en) * | 2014-09-19 | 2015-01-28 | 陈绪英 | Valve body and flange integrated connection type forged steel gate valve |
| CN109630751A (en) * | 2019-01-27 | 2019-04-16 | 哈电集团哈尔滨电站阀门有限公司 | A kind of intelligent type valve |
| CN112253773A (en) * | 2020-09-23 | 2021-01-22 | 江苏理工学院 | Gate valve with automatic detection function |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121024 |