CN201206635Y - Electric Valve - Google Patents
Electric Valve Download PDFInfo
- Publication number
- CN201206635Y CN201206635Y CNU2008201144753U CN200820114475U CN201206635Y CN 201206635 Y CN201206635 Y CN 201206635Y CN U2008201144753 U CNU2008201144753 U CN U2008201144753U CN 200820114475 U CN200820114475 U CN 200820114475U CN 201206635 Y CN201206635 Y CN 201206635Y
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- Prior art keywords
- flashboard
- valve
- boss
- frame
- position shelf
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- Expired - Lifetime
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Abstract
The utility model belongs to a valve and particularly discloses an electrically operated valve including a valve rod, and an electric actuator which is arranged at the upper part of the valve rod and can drive the valve rod to do reciprocating rectilinear motion. The bottom end of the lower part of the valve rod is fixedly connected with a flashboard component, which is composed of a flashboard rack, left and right flashboards, a valve seat, a spring and a positioning rack; the bottom end of the lower part of the valve rod is fixedly connected with the flashboard rack, the flashboards are clamped in the flashboard rack, the positioning rack fixes the flashboards in the flashboard rack, and a cavity equipped with a horizontally placed compression spring is formed between the inner walls of the flashboards; the bottom part of the flashboard rack is matched with a valve body positioning boss; a flute matched with a valve body guiding boss is arranged on the side wall of the flashboard rack; the flashboard component enables the valve body to form a left cavity body and a right cavity body; the positioning rack, the flashboard rack and the valve rod are in fixed connection; a valve seat is arranged between the outer walls of the flashboards and the valve body; and the other side of the valve seat is welded with the valve body. The valve has the advantages of good sealing performance, reasonable structure and simple and convenient installation.
Description
Technical field
The utility model belongs to a kind of valve, is specifically related to a kind of a kind of mortor operated valve that is applied to million kilowatt nuclear power station airborne release system (GCT), is installed on the containment outside.
Background technique
Mortor operated valve belongs to one of nuclear power station critical valves, and technical requirements is tight, safety coefficient is high, and at present domestic do not possess design, manufacturing capacity, the product of juice that to be developed country to my blockade on new techniques, with expensive price earn.And through our analysis and research, there is following shortcoming in valve in the past:
(1) all adopted the valve rod head to set up a positioning screwn in position, but this positioning screwn is at valve working after a period of time, particularly under the such rugged environment of nuclear power, be difficult to guarantee that it is loosening and whole flashboard assembly is moved downward, make valve lose sealing function.
(2) flashboard and position shelf area of contact are too small, and flashboard is deviate from from position shelf easily.
(3) spring force is chosen excessively or too small, and excessive assembling is difficult, too small difficult sealing even leakage.
Summary of the invention
The purpose of this utility model is to provide a kind of mortor operated valve, and this valve seal performance is good, rational in infrastructure, the installation simple and convenient.
Realize the technological scheme of the utility model purpose: a kind of mortor operated valve, it comprises valve rod, be located at the Electric actuator that linear reciprocating motion can actuate valve stem be done on valve rod top, the bottom of valve rod is positioned at valve gap and valve body, valve gap covers on valve body, fixedly connected with flashboard assembly in the bottom of stem lower portion, flashboard assembly by the flashboard frame, about two shoe brake plates, valve seat, spring and position shelf form; Fixedly connected with the flashboard frame in the bottom of stem lower portion, two shoe brake plates are stuck in the flashboard frame from the left and right sides respectively, position shelf with about two shoe brake plates be fixed in the flashboard frame, form the spring cavity of the pressure spring be provided with horizontal positioned between the inwall of two shoe brake plates; Flashboard frame bottom cooperates with valve body bottom positive stop lug boss, and valve is in when closing the dress attitude, fits with valve body bottom positive stop lug boss in flashboard frame bottom; Flashboard frame sidewall is provided with the flashboard frame groove that can cooperate with the body wall guide ledges; Flashboard assembly makes valve body form valve body left side cavity and the right cavity of valve body; Fixedly connected between position shelf, flashboard frame and the valve rod; Be equipped with a valve seat between the outer wall of two shoe brake plates and the valve body; Valve is in closes dress during attitude, the outer wall of two shoe brake plates all and a side valve seat fit; The opposite side of valve seat and valve body welding.
Described flashboard frame top is the built on stilts heart cylindrical body of the flashboard that can cooperate with valve rod, flashboard frame bottom be can with about the hollow cylinder of the flashboard frame that cooperates of two shoe brake plates.
The built on stilts heart cylindrical body inside of described flashboard is the screw of flashboard frame, and flashboard frame top is connected with threaded stem by screw; Hollow cylinder inside is the cylindrical body through hole.
Described hollow cylinder outside can be octagonal cylinder, is equipped with the flashboard frame groove that an energy cooperates with the body wall guide ledges on two relative vertical planes of octagonal cylinder.
Described flashboard is the cylindrical body with boss, the cylindrical body outside is provided with a circle flashboard circumferential recess, flashboard boss middle part is provided with groove, the flashboard boss of two shoe brake plates is stuck in the through hole of flashboard frame from the left and right sides respectively, and two grooves at flashboard boss middle part form the spring cavity of the pressure spring that is provided with horizontal positioned.
Described position shelf is a hollow cylinder, and hollow cylinder inside is the position shelf cylindrical cavity, and cylindrical cavity is enclosed within outside the hollow cylindrical body on flashboard frame top; The position shelf outside is the tetrahedron cylinder, tetrahedron cylinder two bottom sides wall is equipped with a position shelf bottom boss, the bottom of position shelf bottom boss is the arc of the indent that can match with the flashboard circumferential recess at flashboard top, in the flashboard circumferential recess that is stuck in a shoe brake plate top of the arc boss of each indent.
The beneficial effects of the utility model are: valve seal performance of the present utility model is good, rational in infrastructure, the installation simple and convenient.Valve body is provided with the positive stop lug boss that contacts with flashboard frame bottom, and this positive stop lug boss plays the restriction flashboard assembly and moves downward, and has prevented the generation of the situation of becoming flexible easily at valve rod head installing and locating screw in the prior art, makes valve more safe and reliable.The boss structure of bottom, position shelf two side fixedly secures in the flashboard frame flashboard; The arcuate structure of the indent of boss bottom, position shelf bottom makes the surface of contact of itself and flashboard big, prevents that flashboard from ejecting in the flashboard frame under the effect of pressure spring power.According to the difference of bore and pressure, choose the spring of varying strength, make spring force remain on equinoctial point, make the good seal performance of valve, prevent the internal leakage of valve; And make the valve assembling easily, prevent that the sealing surface wear or the valve that cause because of assembling are difficult for opening.
Description of drawings
Fig. 1 is the sectional view of a kind of mortor operated valve initialization state provided by the utility model.
Fig. 2 is that the B-B of Fig. 1 is to sectional view;
Fig. 3 is that the A of Fig. 1 is to partial sectional view;
Fig. 4 is the three-dimensional structure schematic representation of support provided by the utility model;
Fig. 5 is the structural representation of flashboard assembly provided by the utility model;
Fig. 6 is the three-dimensional structure schematic representation of flashboard frame provided by the utility model;
Fig. 7 is the structural representation of flashboard three-dimensional provided by the utility model;
Fig. 8 is the three-dimensional structure schematic representation of position shelf provided by the utility model.
Among the figure: 1. valve body; 2. flashboard frame; 3. flashboard; 4. valve seat; 5. spring; 6. position shelf; 7. valve rod; 8. pad; 9. valve gap; 10. filler; 11. Stem Mut; 12. Electric actuator; 13. key; 14. second bearing; 15. clutch shaft bearing; 16. support; 17. pressing plate; 18. gland; 19. bearing pin; 20. flashboard is maked somebody a mere figurehead heart cylindrical body; 21. flashboard trestle body; 22. flashboard frame groove; 23. flashboard circumferential recess; 24. position shelf bottom boss; 25. Stem Mut boss; 26. double-screw bolt; 27. double-screw bolt; 28. valve body bottom positive stop lug boss; 29. flashboard boss groove; 30. body wall guide ledges; 31. flashboard frame screw; 32. flashboard frame pin-and-hole; 33. flashboard frame through hole; 34. flashboard boss; 35. position shelf pin-and-hole; 36. position shelf cylindrical cavity; 37. double-screw bolt; C. valve body left side cavity; D. the right cavity of valve body; E. spring cavity.
Embodiment
Below in conjunction with drawings and Examples a kind of mortor operated valve provided by the utility model is described in further detail.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, it is outer and between the two by being threaded that a kind of mortor operated valve, the Stem Mut 11 that it comprises Electric actuator 12, is connected by key 13 with Electric actuator 12, Stem Mut 11 are enclosed within valve rod 7.Be with support 16 outside the Stem Mut 11, Stem Mut 11 bottoms are provided with cylindrical body Stem Mut boss 25, are provided with clutch shaft bearing 15 between Stem Mut boss 25 bottoms and the support 16, and cylindrical body boss top is provided with second bearing 14.Be connected by double-screw bolt 26 between pressing plate 17 in support 16 bottoms and the valve gap 9, be connected by double-screw bolt 37 between support 16 bottoms and the valve gap 9.The bottom of valve rod 7 is positioned at valve gap 9 and valve body 1, and valve gap 9 covers on valve body 1.Be provided with the gland 18 that is enclosed within outside the valve rod 7 between pressing plate 17 and the valve gap 9, be provided with filler 10 in the gland 18, valve rod 7 is by filler 10 sealings.Be connected by double-screw bolt 27 between valve gap 9 and the valve body 1, be provided with pad 8 between valve gap 9 and the valve body 1.It is the Electric actuator of K1-2HA3032 that Electric actuator 12 can adopt model.
Except that said structure, can also adopt existing electric driving mechanism actuate valve stem 7.
As shown in Figure 5, fixedly connected with flashboard assembly in the bottom of valve rod 7 bottoms, flashboard assembly by flashboard frame 2, about two shoe brake plates 3, valve seat 4, spring 5 and position shelf 6 form.Fixedly connected with flashboard frame 2 in valve rod 7 bottoms, two shoe brake plates 3 are stuck in the flashboard frame 2 from the left and right sides respectively, position shelf 6 with about two shoe brake plates 3 be fixed in the flashboard frame 2, form the spring cavity E of the pressure spring 5 that is provided with horizontal positioned between the inwall of two shoe brake plates 3, the compressive force of spring 5 is set up the initial specific pressure of valve; Flashboard frame 2 bottoms cooperate with valve body bottom positive stop lug boss 28, and valve is in when closing the dress attitude, and flashboard frame 2 bottoms and valve body bottom positive stop lug boss 28 are fitted; Flashboard frame 2 sidewalls are provided with the flashboard frame groove 22 that can cooperate with body wall guide ledges 30.Flashboard assembly makes valve body 1 form valve body left side cavity C and the right cavity D of valve body, and the right cavity D of valve body left side cavity C and valve body is a cylindrical cavity.It is fixing with position shelf 6, flashboard frame 2 and valve rod 7 that bearing pin 19 passes pin shaft hole.Be equipped with a valve seat 4 between the outer wall of two shoe brake plates 3 and the valve body 1.Valve is in closes dress during attitude, the outer wall of two shoe brake plates 3 all and a side valve seat 4 fit.The opposite side of valve seat 4 and valve body 1 welding.
As Fig. 1, Fig. 2, Fig. 5 and shown in Figure 6, flashboard frame 2 tops are the built on stilts heart cylindrical body 20 of the flashboard that can cooperate with valve rod 7, flashboard frame 2 bottoms be can with about the hollow cylinder 21 of the flashboard frame that cooperates of two shoe brake plates 3.Hollow cylinder 20 and hollow cylinder 21 can be processing all-in-one-piece structures, also can be that two parts are welded.Built on stilts heart cylindrical body 20 inside of flashboard can be flashboard frame screw 31, and flashboard frame 2 tops are threaded with valve rod 7 by screw 31.Hollow cylinder 21 inside can be cylindrical flashboard frame through hole 33.Hollow cylinder 21 outsides can be octagonal cylinder, be equipped with the flashboard frame groove 22 that an energy cooperates with body wall guide ledges 30 on two relative vertical planes of octagonal cylinder, both cooperations play the guiding role when making the flashboard assembly lifting, work to prevent the flashboard assembly rotation simultaneously.
As Fig. 1, Fig. 2, Fig. 5, Fig. 6 and shown in Figure 7, flashboard 3 is for having the cylindrical body of boss, the cylindrical body outside is provided with a circle flashboard circumferential recess 23, flashboard boss 34 middle parts are provided with groove 29, the flashboard boss 34 of two shoe brake plates 3 is stuck in the through hole 33 of flashboard frame 2 from the left and right sides respectively, and two grooves 29 at flashboard boss 34 middle parts form the spring cavity E of the pressure spring 5 that is provided with horizontal positioned.
As Fig. 1, Fig. 2, Fig. 5, Fig. 6, Fig. 7 and shown in Figure 8, position shelf 6 is a hollow cylinder, and hollow cylinder inside is position shelf cylindrical cavity 36, and cylindrical cavity 36 is enclosed within outside the hollow cylindrical body 20 on flashboard frame 2 tops.Position shelf 6 outsides are the tetrahedron cylinder, tetrahedron cylinder two bottom sides wall is equipped with a position shelf bottom boss 24, the bottom of position shelf bottom boss 24 is the arc of the indent that can match with the flashboard circumferential recess 23 at flashboard 3 tops, in the flashboard circumferential recess 23 that is stuck in a shoe brake plate 3 tops of the arc boss 24 of each indent.
As shown in Figure 1, the MEDIA FLOW of mortor operated valve provided by the utility model is to being two-way, no fixed flow to.
Below in conjunction with Fig. 1 the working procedure of mortor operated valve provided by the utility model is described: the process of (1) valve opening: the actual conditions needs of pressing nuclear power station, start Electric actuator 12, Electric actuator 12 drives Stem Mut 11 rotations by key 13, the flashboard frame groove 22 of the flashboard frame 2 in the flashboard assembly is stuck on the body wall guide ledges 30 of valve body 1 inwall, limited the rotation of valve rod 7, valve rod 7 is not rotated; Stem Mut 11 rotation, valve rod 7 does not rotate, and between Stem Mut 11 and the valve rod 7 by being threaded, so Stem Mut 11 rotate be converted to valve rod 7 along its axial moving straight up; Valve rod 7 drives the direction rising of flashboard assembly along vertical flashboard frame groove 22, valve opening.(2) process of valve closing: the actual conditions needs of pressing nuclear power station, start Electric actuator 12, Electric actuator 12 drives Stem Mut 11 rotations by key 13, the vertical flashboard frame groove 22 of the flashboard frame 2 in the flashboard assembly is stuck on the boss of valve body 1 inwall, limited the rotation of valve rod 7, valve rod 7 is not rotated; Stem Mut 11 rotation, valve rod 7 does not rotate, and between Stem Mut 11 and the valve rod 7 by being threaded, so Stem Mut 11 rotate be converted to valve rod 7 along its axial moving straight down; Valve rod 7 drives the direction decline of flashboard assembly along vertical flashboard frame groove 22, valve closing.
Mortor operated valve provided by the utility model check, cold conditions function test, hot function and thermal shock test, operating life test before delivery test, test (cold conditions 500 times, hot 1500 times), fluid blocking-up performance test, the test of flow coefficient value, seismic test (dynamically), end load are checked after testing, testing, and the intermediate survey carried out after every type approval test, its every performance testing index (as sealability, pressure boundary integrity, travel time) all meets technical specification book and related specifications, standard-required.
Mortor operated valve provided by the utility model also can be used for systems such as component cooling water system, fire-fighting system, chilled water system.
Claims (8)
1. mortor operated valve, it comprises valve rod (7), be located at the Electric actuator (12) that linear reciprocating motion can actuate valve stem (7) be done on valve rod (7) top, the bottom of valve rod (7) is positioned at valve gap (9) and valve body (1), valve gap (9) covers on valve body (1), it is characterized in that: fixedly connected with flashboard assembly in the bottom of valve rod (7) bottom, flashboard assembly by flashboard frame (2), about two shoe brake plates (3), valve seat (4), spring (5) and position shelf (6) form; Fixedly connected with flashboard frame (2) in the bottom of valve rod (7) bottom, two shoe brake plates (3) are stuck in the flashboard frame (2) from the left and right sides respectively, position shelf (6) with about two shoe brake plates (3) be fixed in the flashboard frame (2), form the spring cavity (E) of the pressure spring (5) be provided with horizontal positioned between the inwall of two shoe brake plates (3); Flashboard frame (2) bottom cooperates with valve body bottom positive stop lug boss (28), and valve is in when closing the dress attitude, fits with valve body bottom positive stop lug boss (28) in flashboard frame (2) bottom; Flashboard frame (2) sidewall is provided with the flashboard frame groove (22) that can cooperate with body wall guide ledges (30); Flashboard assembly makes valve body (1) form valve body left side cavity (C) and the right cavity (D) of valve body; Fixedly connected between position shelf (6), flashboard frame (2) and the valve rod (7); Be equipped with a valve seat (4) between the outer wall of two shoe brake plates (3) and the valve body (1); Valve is in closes dress during attitude, the outer wall of two shoe brake plates (3) all and a side valve seat (4) fit; The opposite side of valve seat (4) and valve body (1) welding.
2. a kind of mortor operated valve according to claim 1, it is characterized in that: described flashboard frame (2) top is the built on stilts heart cylindrical body (20) of the flashboard that can cooperate with valve rod (7), bottom the flashboard frame (2) be can with about the hollow cylinder (21) of the flashboard frame that cooperates of two shoe brake plates (3).
3. a kind of mortor operated valve according to claim 2 is characterized in that: the built on stilts heart cylindrical body (20) of described flashboard is inner to be the screw (31) of flashboard frame, and flashboard frame (2) top is threaded with valve rod (7) by screw (31); Hollow cylinder (21) inside is cylindrical body through hole (33).
4. according to claim 2 or 3 described a kind of mortor operated valves, it is characterized in that: described hollow cylinder (21) outside can be octagonal cylinder, is equipped with the flashboard frame groove (22) that an energy cooperates with body wall guide ledges (30) on two relative vertical planes of octagonal cylinder.
5. a kind of mortor operated valve according to claim 3, it is characterized in that: described flashboard (3) is for having the cylindrical body of boss, the cylindrical body outside is provided with a circle flashboard circumferential recess (23), flashboard boss (34) middle part is provided with groove (29), the flashboard boss (34) of two shoe brake plates (3) is stuck in the through hole (33) of flashboard frame (2) from the left and right sides respectively, and two grooves (29) at flashboard boss (34) middle part form the spring cavity (E) of the pressure spring (5) that is provided with horizontal positioned.
6. a kind of mortor operated valve according to claim 4, it is characterized in that: described flashboard (3) is for having the cylindrical body of boss, the cylindrical body outside is provided with a circle flashboard circumferential recess (23), flashboard boss (34) middle part is provided with groove (29), the flashboard boss (34) of two shoe brake plates (3) is stuck in the through hole (33) of flashboard frame (2) from the left and right sides respectively, and two grooves (29) at flashboard boss (34) middle part form the spring cavity (E) of the pressure spring (5) that is provided with horizontal positioned.
7. a kind of mortor operated valve according to claim 5, it is characterized in that: described position shelf (6) is a hollow cylinder, hollow cylinder inside is position shelf cylindrical cavity (36), and cylindrical cavity (36) is enclosed within outside the hollow cylindrical body (20) on flashboard frame (2) top; Position shelf (6) outside is the tetrahedron cylinder, tetrahedron cylinder two bottom sides wall is equipped with a position shelf bottom boss (24), the bottom of position shelf bottom boss (24) is the arc of the indent that can match with the flashboard circumferential recess (23) at flashboard (3) top, in the flashboard circumferential recess (23) that is stuck in shoe brake plate (a 3) top of the arc boss of each indent (24).
8. a kind of mortor operated valve according to claim 6, it is characterized in that: described position shelf (6) is a hollow cylinder, hollow cylinder inside is position shelf cylindrical cavity (36), and cylindrical cavity (36) is enclosed within outside the hollow cylindrical body (20) on flashboard frame (2) top; Position shelf (6) outside is the tetrahedron cylinder, tetrahedron cylinder two bottom sides wall is equipped with a position shelf bottom boss (24), the bottom of position shelf bottom boss (24) is the arc of the indent that can match with the flashboard circumferential recess (23) at flashboard (3) top, in the flashboard circumferential recess (23) that is stuck in shoe brake plate (a 3) top of the arc boss of each indent (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201144753U CN201206635Y (en) | 2008-05-20 | 2008-05-20 | Electric Valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201144753U CN201206635Y (en) | 2008-05-20 | 2008-05-20 | Electric Valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201206635Y true CN201206635Y (en) | 2009-03-11 |
Family
ID=40465698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201144753U Expired - Lifetime CN201206635Y (en) | 2008-05-20 | 2008-05-20 | Electric Valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201206635Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799079A (en) * | 2010-04-15 | 2010-08-11 | 大众阀门集团有限公司 | Gate valve with two flat plates |
| CN102094988A (en) * | 2010-12-09 | 2011-06-15 | 无锡市亚迪流体控制技术有限公司 | Parallel gate valve |
| 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 |
| CN104896129A (en) * | 2015-05-15 | 2015-09-09 | 营口埃斯威特阀门有限公司 | Parallel type double-gate gate valve |
| CN106895169A (en) * | 2015-12-18 | 2017-06-27 | 中核苏阀科技实业股份有限公司 | A kind of containment extension function melt pit valve |
-
2008
- 2008-05-20 CN CNU2008201144753U patent/CN201206635Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799079A (en) * | 2010-04-15 | 2010-08-11 | 大众阀门集团有限公司 | Gate valve with two flat plates |
| CN102094988A (en) * | 2010-12-09 | 2011-06-15 | 无锡市亚迪流体控制技术有限公司 | Parallel gate valve |
| CN102094988B (en) * | 2010-12-09 | 2012-05-16 | 无锡市亚迪流体控制技术有限公司 | Parallel gate valve |
| 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 |
| CN104896129A (en) * | 2015-05-15 | 2015-09-09 | 营口埃斯威特阀门有限公司 | Parallel type double-gate gate valve |
| CN106895169A (en) * | 2015-12-18 | 2017-06-27 | 中核苏阀科技实业股份有限公司 | A kind of containment extension function melt pit valve |
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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: 20090311 |