CN202659935U - Intelligent-monitoring maintenance-free electric gate valve - Google Patents
Intelligent-monitoring maintenance-free electric gate valve Download PDFInfo
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- CN202659935U CN202659935U CN 201220354624 CN201220354624U CN202659935U CN 202659935 U CN202659935 U CN 202659935U CN 201220354624 CN201220354624 CN 201220354624 CN 201220354624 U CN201220354624 U CN 201220354624U CN 202659935 U CN202659935 U CN 202659935U
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Abstract
The utility model discloses an intelligent-monitoring maintenance-free electric gate valve, relating to the field of valve structures. The intelligent-monitoring maintenance-free electric gate valve comprises a valve body, wherein a valve seat is arranged in the valve body, a valve cover is connected to the upper part of the valve body, a valve rod is arranged on the valve cover in a penetrating manner, the valve seat is connected with the valve body through lip overlaying welding and comprises an upper-end valve seat sealing face and a lower-end valve seat sealing face, and a first stellite layer is formed on each valve seat sealing face through plasma spray welding; and one end of the valve rod in the valve body is connected with an I-shaped valve plate, the I-shaped valve plate comprises an upper-end valve plate sealing face and a lower-end valve plate sealing face, a second stellite layer is formed on each valve plate sealing face through plasma spray welding, and all the second stellite layers are respectively matched with the corresponding first stellite layers. According to the intelligent-monitoring maintenance-free electric gate valve, the valve seat sealing faces are subjected to stellite plasma spray welding, and the valve seat is connected with the valve body by adopting a lip overlaying welding structure welding technology, so that the service life is prolonged to over 2,000 times; and the valve plate is formed by forging an I-shaped structure, and the sealing faces are subjected to the stellite plasma spray welding, so that the sealing effect of the valve is good.
Description
Technical field
The utility model relates to the structure field of valve.
Background technique
The U.S. built in the world First horace nineteen forty-two, and the former Soviet Union built up in the world First nuclear power station 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 producing, function admirable, reliability height.The Framatome of the Westinghouse Electric of the U.S., Canadian Velan S. A. S. (Velen), France, the west nuclear power valve enterprises such as Sulzer KSB company of Germany are grasping contemporary state-of-the-art nuclear grade valve technology.The nuclear power valve of Velan S. A. S. almost has good supply of material record in the nuclear power station more than 90% in the world.In the world many important nuclear levels, non-nuclear grade valve in the nuclear island in the nuclear power station and the conventional island, as Pilot operated safety valve, main steam isolation valve, modulating valve, with intelligent driving mechanism and possess the crucial nuclear power valve technology such as nuclear level gate valve of inline diagnosis ability and market all by famous nuclear power valve company monopolizing, its price is very expensive, is more than 1.5 times of domestic 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.Be mainly manifested in: 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, such as main steam isolation valve, heavy caliber safety valve, stabilizer electric Decompression valves, fast opening and closing insulating valve and antiseismic control valve, on the key links such as Research and development and production, not yet obtain important breakthrough; 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 purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of non-maintaining electric gate valve of intelligent monitoring of good sealing effect to be provided.
The purpose of this utility model is achieved in that 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, the first filler and the second filler are set between valve rod and the valve gap, and the first filler is arranged on the top of the second filler, connects electric actuator on the valve rod of described valve gap top; Described valve seat is connected by the built-up welding of lip limit with valve body, and valve seat comprises the up and down sealing surface of seat at two ends, difference plasma spray the first stellite layer on each sealing surface of seat; One end of the valve rod in the described valve body connects " worker " font valve plate, " worker " font valve plate comprises the up and down sealing surface of valve plate at two ends, plasma spray the second stellite layer on each sealing surface of valve plate, each second stellite layer match with corresponding the first stellite layer respectively.
Sealing surface of seat of the present utility model adopts the plasma spray stellite, and valve seat is connected employing lip limit overlaying 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, so that the good sealing effect of valve.
The lower end of valve gap of the present utility model arranges the valve gap locating slot, and the upper end of valve body arranges the valve body locating slot, in valve gap locating slot and valve body locating slot the same stainless steel is set and adds the Expanded graphite spiral wound gasket.Reliable guarantee pipeline pressure fluctuation, and flange bolt is loosening in the valve that causes of the pipeline temperature difference, the sealing effect that middle flange does not leak.Solved the difficult problem that this type valve exists.
Valve rod between the first filler and the second filler arranges the liquid collecting ring, on the liquid collecting ring through hole is set, and 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 timely and accurately valve leak and leakage rate, has increased valve and has used operating safety reliability.
The liquid mechanism of drawing of the present utility model also comprises autoalarm, draw liquid mechanism and be provided with electromic digit display screen and autoalarm, 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 utility model is " worker " font.
The utility model be for the defective of China's nuclear power valve and with the gap of external advanced valve, adopt new structure, new material, design of new processes to form, novel voluntarily detection device Reliable guarantee the usability of valve, guaranteed the sustainable operation of valve, 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 utility model.
Fig. 2 is A section 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, 2-2 the first stellite layer, 3 valve plates, 3-1 sealing surface of valve plate, 3-2 the 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, the 8-3 digital display screen, 9-1 the first filler, 9-2 the 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, the valve body 1 interior valve seat 2 that arranges, valve seat 2 is connected by the built-up welding of lip limit with valve body 1, and valve seat 2 comprises the up and down sealing surface of seat 2-1 at two ends, upper respectively plasma spray the first stellite layer 2-2 of each sealing surface of seat 2-1.The top of valve body 1 connects valve gap 7, and the lower end of valve gap 7 arranges valve gap locating slot 7-1, and the upper end of valve body 1 arranges valve body locating slot 1-1, in valve gap locating slot 7-1 and valve body locating slot 1-1 the same 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 up and down sealing surface of valve plate 3-1 at two ends, upper plasma spray the second stellite layer 3-2 of each sealing surface of valve plate 3-1, each second stellite layer 3-2 matches with corresponding the 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, valve rod 4 between the first filler 9-1 and the second filler 9-2 arranges liquid collecting ring 13, " worker " font through hole 14(is set as shown in Figure 2 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 appears in valve, autoalarm 8-2 just sends 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 arranges pressing plate 11, and pressing plate 11 is connected with valve gap 7 by 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, the first filler and the second filler are set between valve rod and the valve gap, and the first filler is arranged on the top of the second filler, connects electric actuator on the valve rod of described valve gap top; It is characterized in that: described valve seat is connected by the built-up welding of lip limit with valve body, and valve seat comprises the up and down sealing surface of seat at two ends, difference plasma spray the first stellite layer on each sealing surface of seat; One end of the valve rod in the described valve body connects " worker " font valve plate, " worker " font valve plate comprises the up and down sealing surface of valve plate at two ends, plasma spray the second stellite layer on each sealing surface of valve plate, each second stellite layer match with corresponding the 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 described valve gap arranges the valve gap locating slot, the upper end of valve body arranges the valve body locating slot, in valve gap locating slot and valve body locating slot the same stainless steel is set and 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: the valve rod between the first filler and the second filler arranges the liquid collecting ring, 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, it is characterized in that: the described 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 described through hole is " worker " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220354624 CN202659935U (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 |
|---|---|---|---|
| CN 201220354624 CN202659935U (en) | 2012-07-22 | 2012-07-22 | Intelligent-monitoring maintenance-free electric gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659935U true CN202659935U (en) | 2013-01-09 |
Family
ID=47454844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220354624 Expired - Lifetime CN202659935U (en) | 2012-07-22 | 2012-07-22 | Intelligent-monitoring maintenance-free electric gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659935U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748491A (en) * | 2012-07-22 | 2012-10-24 | 江苏金晟元特种阀门有限公司 | Intelligent monitoring maintenance-free electric gate valve |
| CN107300041A (en) * | 2017-06-19 | 2017-10-27 | 苏州宝骅密封科技股份有限公司 | A kind of leaking medium collection method of packing seal |
| CN107701755A (en) * | 2017-11-15 | 2018-02-16 | 潘绍兵 | A kind of valve with pipeline leakage detection device |
-
2012
- 2012-07-22 CN CN 201220354624 patent/CN202659935U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748491A (en) * | 2012-07-22 | 2012-10-24 | 江苏金晟元特种阀门有限公司 | Intelligent monitoring maintenance-free electric gate valve |
| CN107300041A (en) * | 2017-06-19 | 2017-10-27 | 苏州宝骅密封科技股份有限公司 | A kind of leaking medium collection method of packing seal |
| CN107300041B (en) * | 2017-06-19 | 2018-12-07 | 苏州宝骅密封科技股份有限公司 | A kind of leaking medium collection method of packing seal |
| CN107701755A (en) * | 2017-11-15 | 2018-02-16 | 潘绍兵 | A kind of valve with pipeline leakage detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |