CN101982680B - Stop valve - Google Patents
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- CN101982680B CN101982680B CN2010105546396A CN201010554639A CN101982680B CN 101982680 B CN101982680 B CN 101982680B CN 2010105546396 A CN2010105546396 A CN 2010105546396A CN 201010554639 A CN201010554639 A CN 201010554639A CN 101982680 B CN101982680 B CN 101982680B
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Abstract
The invention relates to a stop valve. The stop valve comprises a valve body, a valve chamber and a valve seat, wherein an opening arranged at the lateral part of the valve body, the valve chamber and a valve seat channel form a fluid channel; the stop valve is further provided with a valve rod, a connecting piece and a valve disk, the valve rod can extend in the inner cavity of the valve body and move along the longitudinal axis direction of the valve rod, and the valve rod is provided with a first end and a second end with a valve rod dent; the connecting piece is fixedly connected or combined with the second end of the valve rod, is provided with inner through holes and an upper end surface of the connecting piece and forms a valve rod chamber with the height of H1 with the top wall of the valve rod dent; the valve disk is provided with a valve head, a valve disk main body which passes through the inner through holes of the connecting piece and a valve disk connecting piece contained in the valve rod chamber; the lateral dimension of the valve disk connecting piece is larger than that of the inner through holes; and a first gap C1 is arranged between the valve disk main body and the inner through holes of the connecting piece and a second gap C2 is arranged between the valve disk connecting piece and the inner wall of the valve rod chamber. The stop valve features god sealing property, safety and reliability.
Description
Technical field
The present invention relates to a kind of stop valve, especially high temperature and high pressure cut-off valve.
Background technique
Because DCL/Direct coal liquefaction device main fluid is that HTHP contains solid material, and is very high to the requirement of equipment, especially very harsh for the requirement of the valve on the HTHP pipeline, the wear-resisting high temperature and high pressure cut-off valve of this kind is the dependence on import product basically.No matter be industrial production device or pilot scale small testing device; The wear-resisting high temperature and high pressure cut-off valve of key position exists material selection and structural design defect problem; Cause in operation process because of wearing and tearing or seal failure, working life is short, and repairings needs to change put in order the deck valve door; Waste time and energy, also give and produce and test and bring very big economic loss.
Chinese patent publication number CN2623985 (patent No. 03222636.5) discloses a kind of high temperature and high pressure cut-off valve; Adopt spherical sealing and valve ball and valve seat to adopt and divide body structure; Be convenient to the maintenance and the replacing of valve; But the valve heat resisting and pressure resisting does not have definite data, is difficult to be implemented in high temperature yet and contains the normal use under the solid material operating mode.
Chinese patent publication number CN2628818 (patent No. 03256996.3) discloses a kind of HTHP angle valve; Do not need the integral replacing valve; Only change easily damaged parts, also be adapted at using under the operating mode that high temperature (being higher than 450 ℃) high pressure (being higher than 20MPa) contains solid material, but the centering complex structure; The centering sealability is bad in practical application, also damages valve stem seal easily.
Summary of the invention
It is good to the purpose of this invention is to provide a kind of sealing property, safe and reliable stop valve.
The present invention relates to a kind of stop valve, comprise valve body, valve pocket, valve seat, wherein the side mouth of valve body, valve pocket, valve base channel form the fluid passage, and stop valve also comprises:
● valve rod, extend in body cavity and can move along the longitudinal axis of valve rod; Valve rod has:
-the first end, with control valve rod actuator be connected or combine and
-the second end has the valve rod recess;
● connected element, be fixedly connected with second end of valve rod or combine, connected element has:
-interior bone and
-connected element upper-end surface, and formation highly is the valve rod chamber of H1 between the roof of valve rod recess;
● spool, spool has:
-valve head is positioned at the lower end of spool, cooperatively interacts with the open upper end of the valve base channel of valve seat,
-spool main body is passed in the interior bone of connected element;
-spool joint is positioned at the upper end of spool, and it is indoor to be contained in valve-rod cavity;
Wherein, the transverse dimension of spool joint is greater than the transverse dimension of interior bone;
Wherein, have first clearance C 1 between the inwall of the interior bone of spool main body and connected element, have second clearance C 2 between spool joint and the valve-rod cavity chamber interior walls.
Preferably, the top of spool joint (410) is that radius is the land portions (414) of R.
Preferably, the spool joint also has:
-diameter is the column part of D, is positioned at spool joint bottom.
Preferably, R=1.5～2D, preferred R=1.6～1.9D, more preferably R=1.7～1.8D.
Preferably, valve rod chamber roof is and the corresponding sphere shape of the land portions of spool joint.
Preferably, the spool joint is the sphere of diameter D4, and the valve rod chamber is the sphere of diameter D3, D3＞D4.
Preferably, first clearance C 1 is 0.05～0.3mm, preferred 0.1～0.3mm, more preferably 0.15～0.25mm, most preferably 0.2～0.25mm.
Preferably, second clearance C 2 is 0.1～0.3mm, preferred 0.15～0.3mm, more preferably 0.2～0.3mm, most preferably 0.2～0.25mm.
Preferably, the height difference H 1-H2 between the height H 1 of valve rod chamber and the height H 2 of spool joint is 0.05～0.3mm, preferred 0.1～0.3mm, more preferably 0.1～0.25mm, most preferably 0.1～0.15mm.
Preferably, removably be fixedly connected between connected element and the valve rod or combine.
Preferably, between connected element and the valve rod recess inwall through being threaded or combining.
Preferably, connected element also has:
-protuberance is positioned at outside the valve rod chamber of connected element lower end, and the diameter D5 of protuberance is greater than the diameter of valve rod recess.
Stop valve good seal performance of the present invention, safe and reliable.
Description of drawings
Fig. 1 is a stop valve master pseudosection;
Fig. 2 is the linkage structure partial enlarged drawing of spool.
Embodiment
The present invention relates to a kind of stop valve, comprise valve body 200, valve pocket 260, valve seat 300, the wherein side mouth 230 of valve body 200, valve pocket 260, valve base channel 310 formation fluid passages, stop valve also comprises:
● valve rod 700, extend in valve body 200 and can move along the longitudinal axis of valve rod 700; Valve rod 700 has:
-the first end, with control valve rod 700 actuator 130 be connected or combine and
-the second end has valve rod recess 720;
● connected element 500, be fixedly connected with second end of valve rod 700 or combine, connected element 500 has:
-interior bone 510 and
-connected element upper-end surface 530, and formation highly is the valve rod chamber 740 of H1 between the roof of valve rod recess 720;
● spool 400, spool 400 has:
-valve head 430 is positioned at the lower end of spool 400, cooperatively interacts with the open upper end of the valve base channel 310 of valve seat 300,
-spool main body 420 is passed in the interior bone 510 of connected element 500;
-spool joint 410 is positioned at the upper end of spool 400, is contained in the valve rod chamber 740;
Wherein, the transverse dimension of spool joint 410 is greater than the transverse dimension of interior bone 510;
Wherein, have first clearance C 1 between the inwall of the interior bone 510 of spool main body 420 and connected element 500, have second clearance C 2 between spool joint 410 and valve rod chamber 740 inwalls.
The present invention relates to a kind of stop valve, comprising:
● valve body 200 has
-side mouth 230 is positioned at the sidepiece of valve body 200,
-body cavity extends along the longitudinal axis of valve body 200;
● valve pocket 260 is positioned at body cavity;
● valve seat 300 is positioned at the below body cavity of valve pocket 260; Wherein valve base channel 310 is formed in the valve seat 300, thus the formation fluid passage of side mouth 230, valve pocket 260, valve base channel 310;
● valve rod 700, extend in valve body 200 and can move along the longitudinal axis of valve rod 700; Valve rod 700 has:
-the first end, with control valve rod 700 actuator 130 be connected or combine and
-the second end has valve rod recess 720;
● connected element 500, be fixedly connected with second end of valve rod 700 or combine, connected element 500 has:
-interior bone 510 and
-connected element upper-end surface 530, and formation highly is the valve rod chamber 740 of H1 between the roof of valve rod recess 720;
● spool 400, spool 400 has:
-valve head 430 is positioned at the lower end of spool 400, cooperatively interacts with the open upper end of the valve base channel 310 of valve seat 300,
-spool main body 420 is passed in the interior bone 510 of connected element 500;
-spool joint 410 is positioned at the upper end of spool 400, is contained in the valve rod chamber 740;
Wherein, the transverse dimension of spool joint 410 is greater than the transverse dimension of interior bone 510;
Wherein, have first clearance C 1 between the inwall of the interior bone 510 of spool main body 420 and connected element 500, have second clearance C 2 between spool joint 410 and valve rod chamber 740 inwalls.
Preferably, the top of spool joint 410 is that radius is the land portions 414 of R.Preferably, land portions 414 is a segment, and the diameter of the circular section, bottom of segment is D.Preferably, R=1.5～2D, preferred R=1.6～1.9D, more preferably R=1.7～1.8D, for example, R=1.5D, R=1.6D, R=1.7D, R=1.8D, R=1.9D, R=2D.
Preferably, spool joint 410 has:
-diameter is the column part 412 of D, be positioned at spool joint 410 bottoms and
-radius is the land portions 414 of R, is positioned at spool joint 410 tops.
Preferably, column part 412 directly is combined in below the land portions 414.
Preferably, the relation of D and R is: R=1.5～2D, and preferred R=1.6～1.9D, more preferably R=1.7～1.8D, for example, R=1.5D, R=1.6D, R=1.7D, R=1.8D, R=1.9D, R=2D.
Preferably, valve rod chamber 740 roofs are the land portions 414 corresponding sphere shapes with spool joint 410.
Preferably, spool joint 410 is that D4 is spherical for diameter, and valve rod chamber 740 is the sphere of D3 for diameter, D3＞D4.
Preferably, first clearance C 1 is 0.05～0.3mm, preferred 0.1～0.3mm, more preferably 0.15～0.25mm, most preferably 0.2～0.25mm.
Preferably, second clearance C 2 is 0.1～0.3mm, preferred 0.15～0.3mm, more preferably 0.2～0.3mm, most preferably 0.2～0.25mm.
Preferably, the height H 1 of valve rod chamber 740 is greater than the height H 2 of spool joint.
Preferably, the height difference H 1-H2 between the height H 1 of valve rod chamber 740 and the height H 2 of spool joint is 0.05～0.3mm, preferred 0.1～0.3mm, more preferably 0.1～0.25mm, most preferably 0.1～0.15mm.
Preferably, detachably between connected element 500 and the valve rod 700 be fixedly connected or combine.
Preferably, connected element 500 is fixedly connected with valve rod recess 720 madial walls through peripheral part or combines.
Preferably, detachably between valve rod recess 720 inwalls of connected element 500 and valve rod 700 be fixedly connected or combine.
Preferably, between valve rod recess 720 inwalls of connected element 500 and valve rod 700 through being threaded or combining.
Preferably, connected element 500 is bolts.
Preferably, connected element 500 also has:
-protuberance 520 is positioned at outside the connected element 500 lower end valve rod chambers 740, and the diameter D5 of protuberance 520 is greater than the diameter of valve rod recess 720.
Preferably, valve rod 700 moves through the longitudinal axis of screw thread along valve rod 700.
Preferably, stop valve of the present invention further comprises:
● influent stream pipe 160 is fixedly connected or is combined in side mouth 230 places of valve body 200 and is communicated with side mouth 230 fluids.
Preferably, stop valve of the present invention further comprises:
● outflow tube 100, be arranged on the below of valve seat 300, be fixedly connected with valve body 200 and be communicated with valve base channel 310 fluids.
Preferably, outflow tube 100 and/or influent stream pipe 160 removably are fixedly connected or are bonded to valve body 200.In a kind of preferred implementation, outflow tube 100 and/or influent stream pipe removably are fixedly connected or are bonded to valve body 200 through screw thread.
Preferably, the actuator 130 of control valve rod 700 is a handwheel.
Preferably, stop valve of the present invention is a high temperature and high pressure cut-off valve, preferred high-temperature and high-pressure wearable stop valve.
Fig. 1 and Fig. 2 show a kind of preferred implementation of the present invention.
As shown in Figure 1, a kind of stop valve preferred embodiment according to the present invention comprises: valve body 200, valve seat 300, valve rod 700, spool 400, connected element 500.
The bottom of valve stem casing 800 has internal thread and outside thread, thereby valve rod 700 and valve body 200 are assembled together.The internal thread of valve stem casing 800 matches with the outside thread of valve rod 700, and when rotation valve rod 700, valve rod 700 moves along its longitudinal axis, drives spool 400 up moving, and realizes the opening and closing of stop valve.The top of valve stem casing 800 internal threads sets gradually filler 110, insertion ring 111, follower 112, thereby realizes sealing.Like this, just can valve rod 700, spool 400 be removably mounted in the valve body 200.
Stop valve of the present invention further comprises influent stream pipe 160.Influent stream pipe 160 is fixedly connected or is combined in side mouth 230 places of valve body 200 and is communicated with side mouth 230 fluids.Preferably, influent stream pipe 160 removably is fixedly connected or is combined on the valve body 200.For example, as shown in Figure 1, influent stream pipe 160 is fixedly connected or is bonded to valve body 200 through screw thread.
As shown in Figure 2, spool 400 has valve head 430, spool main body 420, spool joint 410.Valve head 430 is positioned at the lower end of spool 400, cooperatively interacts with the open upper end of the valve base channel 310 of valve seat 300.Spool main body 420 diameters are D2, are contained in the interior bone 510 of connected element 500.Spool joint 410 is positioned at the upper end of spool 400, is contained in the valve rod chamber 740; It is the land portions 414 of R that spool joint 410 has column part 412 and the radius that diameter is D.The diameter D of the column part 412 of spool joint 410 is greater than the diameter D1 of interior bone 510.The valve head 430 of spool 400 can be taper (as shown in Figure 1), like this can be better cooperatively interacts with the open upper end of valve base channel 310.Spool 400 is preferably processed with high-abrasive material.
As shown in Figure 2, the diameter D2 of spool main body 420 is less than the diameter D1 of interior bone 510, thus first clearance C 1 between the inwall of formation spool main body 420 and interior bone 510.Preferably, first clearance C 1 is 0.05～0.3mm, preferred 0.1～0.3mm, more preferably 0.15～0.25mm, most preferably 0.2～0.25mm.
As shown in Figure 2, the size of spool joint 410 is less than the size of valve rod chamber 740, thereby has second clearance C 2 between spool joint 410 and valve rod chamber 740 inwalls.Preferably, second clearance C 2 is 0.1～0.3mm, preferred 0.15～0.3mm, more preferably 0.2～0.3mm, most preferably 0.2～0.25mm.
As shown in Figure 2, the height H 2 of spool joint 410 is less than the height H 1 of valve rod chamber 740, thus formation height difference H 1-H2.Preferably, height difference H 1-H2 is 0.05～0.3mm, preferred 0.1～0.3mm, more preferably 0.1～0.25mm, most preferably 0.1～0.15mm.
The roof of valve rod chamber 740 shown in Figure 2 is the plane, as another kind of preferred implementation, valve rod chamber 740 roofs also can for the land portions 414 corresponding sphere shapes of spool joint 410.
As another embodiment of the invention, spool joint 410 is that D4 is spherical for diameter, and valve rod chamber 740 is the sphere of D3 for diameter, D3＞D4.Poor D3-D4 between the diameter D4 of spool joint 410 and the diameter D3 of valve rod chamber 740 is 0.1～0.3mm, preferred 0.1～0.25mm, more preferably 0.15～0.25mm, most preferably 0.15～0.2mm.
Because first clearance C 1 and second clearance C 2; Even the longitudinal axis inaccuracy of valve rod 700, spool 400, valve base channel 310 ground point-blank; There are some deviations; When stop valve was closed, spool 400 can be adjusted center seal automatically, cooperatively interacted well with the open upper end of the valve base channel 310 of valve seat 300.Because the existence of first clearance C 1 and second clearance C 2; Spool 400 can be movable in certain scope; Move down when contacting when valve rod 700 drives spool 400 along descending move of the longitudinal axis of valve rod 700, form fitted seal preferably thereby can adjust automatically with the open upper end of valve base channel 310.Because spool 400 can be adjusted center seal automatically, can reduce accuracy of manufacturing and installation precision to a great extent, save manufacture cost and time.Therefore, stop valve good seal performance of the present invention, safe and reliable.
Stop valve of the present invention can use on various flowing medium pipelines and use.When selecting for use high-abrasive material to do spool, valve seat, can be suitable for wear-resisting, high temperature resistant, high voltage bearing occasion and use, it is particularly suitable that HTHP is contained solid material.
As shown in Figure 1; A kind of preferred embodiment in; High-temperature and high-pressure wearable stop valve of the present invention is mainly by outflow tube 100, valve body 200, valve seat 300, spool 400, bolt 500, spring sheet 106, valve rod 700, valve stem casing 800, insertion ring 109,, composition such as filler 110, insertion ring 111, Gland 112, handwheel 130, bolt 114 spring sheets 115, influent stream pipe 160.
A kind of preferred embodiment in, the present invention is achieved in that medium passes through influent stream pipe 160 and gets into body cavities 260, valve seat 300 to the outflow tube 100 of flowing through.Open and close medium runner through handwheel 130, valve rod 700, spool 400, reach by with Caytoniales.
A kind of preferred embodiment in, valve seat of the present invention 300 adopts symplex structure form up and down, can do two-way use, to prolong one times of working life.
A kind of preferred embodiment in, spool of the present invention 400, valve seat 300 are processed by high-abrasive material.Use a period of time back valve core 400, valve seat 300 as long as grind a little, still can continue to use, will improve greatly working life.Spool 400 is backed out valve stem casing 800 by being connected with valve rod 700 through set screw nut 500, and the nut 500 of dismantling is replaceable spool 400.
A kind of preferred embodiment in; Spool 400 of the present invention is connected the employing nut to be fixed with valve rod 700; Spool 400 upper ends are that sphere (R=1.5-2.0D of sphere) contacts with valve rod 700; Top and valve rod 700 leave the 0.2-0.25mm gap, radially leave the gap of 0.15-0.25mm, so that valve adjusts center seal automatically when cutting out.
A kind of preferred embodiment in, spool of the present invention 400 is threaded with fixedly being of valve seat 300, valve seat 300 is threaded with valve body 200 by outflow tube 100, backs out outflow tube 100 replaceable valve seats 300.Backing out follower 112 is replaceable filler, very easy.
A kind of preferred embodiment in, compared with prior art, the present invention has the following advantages:
1. good seal performance is safe and reliable
Adopt spool to adjust the center seal structure automatically, can effectively guarantee interior sealing.A kind of preferred embodiment in, be fixedly connected to adopt metallic seal, sealingly secure is reliable.
2. critical component long service life
A kind of preferred embodiment in, the valve seat of symplex structure can two-wayly use up and down, doubles working life; The spool wearing and tearing have also significantly prolonged working life after grinding disposing can continue to use.
3. convenient disassembly, flexible operation
A kind of preferred embodiment in, the connection of critical component of the present invention is adopted and is threaded, spool, valve seat, pad, filler are changed easy; Spool moves up and down through the screw thread guiding, even if under head pressure, also operate freely light.
4. applied widely
The present invention can use on various flowing medium pipelines and use.A kind of preferred embodiment in, selected for use high-abrasive material to do spool, valve seat, be more suitable for using in wear-resisting, high temperature resistant, high voltage bearing occasion, it is particularly suitable that HTHP is contained solid material.
Provided a kind of preferred concrete structure of the present invention among Fig. 1; Shown in label: outflow tube 100, valve body 200, valve seat 300, spool 400, bolt 500, spring sheet 106, valve rod 700, valve stem casing 800, insertion ring 109,, filler 110, insertion ring 111, Gland 112, handwheel 130, bolt 114 spring sheets 115, influent stream pipe 160.
Material gets into valve body 200 by influent stream pipe 160, through valve seat 300, is circulated to outflow tube 100; Drive the screw thread guide movement of valve rods 700 edges and valve stem casing 800 through handwheel 130, drive moving up and down of spool 400, make opening of valves or close; Spool 400 and valve seat 300 are processed by high-abrasive material, and valve seat 300 is a symplex structure, can two-sidedly use.
Fig. 2 has provided spool 400 of the present invention and has adjusted the structure that seals automatically with valve seat 300.
In the present invention, under the situation of not contradiction or conflict, all embodiments of the present invention, mode of execution and characteristic can make up each other.
Certainly, the present invention also can have other embodiments, and the above is merely preferred implementation of the present invention, is not to be used for limiting protection scope of the present invention; Under the situation that does not deviate from spirit of the present invention, those of ordinary skills are every to make various corresponding variations and modification according to content of the present invention, all belongs to the protection domain of claim of the present invention.
The drawing reference numeral explanation
100 outflow tubes
200 valve bodies
230 side mouth
260 valve pockets
300 valve seats
310 valve base channel
400 spools
410 spool joints
412 column parts
414 land portions
420 spool main bodys
430 valve heads
500 connected elements
510 interior bone
520 protuberances
530 connected element upper-end surfaces
700 valve rods
800 valve stem casings
106 spring sheets
109 insertion rings
110 fillers
111 insertion rings
112 Glands
114 bolts
115 spring sheets
130 handwheels
160 influent stream pipes
The diameter of D column part 412
The height of H1 valve rod chamber 740
The height of H2 spool joint
C1 first gap
C2 second gap
Claims (23)
1. a stop valve comprises valve body (200), valve pocket (260), valve seat (300), and the side mouth (230) of wherein said valve body (200), valve pocket (260), valve base channel (310) form the fluid passage, and said stop valve also comprises:
(A) valve rod (700) extends in said valve body (200) and can move along the longitudinal axis of said valve rod (700); Said valve rod (700) has:
(A1) first end, with control said valve rod (700) actuator (130) be connected and
(A2) second end has valve rod recess (720);
(B) connected element (500) is fixedly connected with second end of said valve rod (700), and said connected element (500) has:
(B1) interior bone (510) and
(B2) connected element upper-end surface (530), and formation highly is the valve rod chamber (740) of H1 between the roof of said valve rod recess (720);
(C) spool (400) has:
(C1) valve head (430) is positioned at the lower end of said spool (400), cooperatively interacts with the open upper end of the valve base channel (310) of said valve seat (300),
(C2) spool main body (420) is passed in the interior bone (510) of said connected element (500);
(C3) spool joint (410) is positioned at the upper end of said spool (400), is contained in the said valve rod chamber (740);
(D) outflow tube (100) is arranged on the below of said valve seat (300), is fixedly connected with said valve body (200) and is communicated with said valve base channel (310) fluid;
Wherein, the transverse dimension of said spool joint (410) is greater than the transverse dimension of said interior bone (510);
Wherein, have first clearance C 1 between the inwall of the interior bone (510) of said spool main body (420) and said connected element (500), have second clearance C 2 between said spool joint (410) and said valve rod chamber (740) inwall.
2. stop valve according to claim 1, wherein, the top of said spool joint (410) is that radius is the land portions (414) of R.
3. stop valve according to claim 2, wherein, said spool joint (410) also has:
Diameter is the column part (412) of D, is positioned at said spool joint (410) bottom.
4. stop valve according to claim 3, wherein, R=1.5～2D.
5. stop valve according to claim 3, wherein, R=1.6～1.9D.
6. stop valve according to claim 3, wherein, R=1.7～1.8D.
7. stop valve according to claim 3, wherein, said valve rod chamber (740) roof is the corresponding sphere shape of land portions (414) with said spool joint (410).
8. stop valve according to claim 1, wherein, said spool joint (410) is the sphere of diameter D4, said valve rod chamber (740) is the sphere of diameter D3, D3＞D4.
9. according to each described stop valve of claim 1 to 8, wherein, said first clearance C 1 is 0.05～0.3mm.
10. stop valve according to claim 9, wherein, said first clearance C 1 is 0.1～0.3mm.
11. stop valve according to claim 9, wherein, said first clearance C 1 is 0.15～0.25mm.
12. stop valve according to claim 9, wherein, said first clearance C 1 is 0.2～0.25mm.
13. according to each described stop valve of claim 1 to 8, wherein, said second clearance C 2 is 0.1～0.3mm.
14. stop valve according to claim 13, wherein, said second clearance C 2 is 0.15～0.3mm.
15. stop valve according to claim 13, wherein, said second clearance C 2 is 0.2～0.3mm.
16. stop valve according to claim 13, wherein, said second clearance C 2 is 0.2～0.25mm.
17. according to each described stop valve of claim 1 to 8, wherein, the height difference H 1-H2 between the height H 2 of the height H 1 of said valve rod chamber (740) and said spool joint (410) is 0.05～0.3mm.
18. stop valve according to claim 17, wherein, said height difference H 1-H2 is 0.1～0.3mm.
19. stop valve according to claim 17, wherein, said height difference H 1-H2 is 0.1～0.25mm.
20. stop valve according to claim 17, wherein, said height difference H 1-H2 is 0.1～0.15mm.
21., wherein, removably be connected between said connected element (500) and the said valve rod (700) according to each described stop valve of claim 1 to 8.
22. stop valve according to claim 21, wherein, between said connected element (500) and said valve rod recess (720) inwall through being threaded.
23. stop valve according to claim 21, wherein, said connected element (500) also has:
(B3) protuberance (520) is positioned at outside said connected element (500) the lower end valve rod chamber (740), and the diameter D5 of said protuberance (520) is greater than the diameter of said valve rod recess (720).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105546396A CN101982680B (en) | 2010-11-22 | 2010-11-22 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105546396A CN101982680B (en) | 2010-11-22 | 2010-11-22 | Stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101982680A CN101982680A (en) | 2011-03-02 |
| CN101982680B true CN101982680B (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105546396A Active CN101982680B (en) | 2010-11-22 | 2010-11-22 | Stop valve |
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| Country | Link |
|---|---|
| CN (1) | CN101982680B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537464A (en) * | 2011-12-12 | 2012-07-04 | 航天长征化学工程股份有限公司 | Erosion-resistant slag-water high-pressure angle type regulating valve |
| CN104235385A (en) * | 2013-06-17 | 2014-12-24 | 张生华 | High-pressure rapid-closure valve |
| CN106337940A (en) * | 2016-11-03 | 2017-01-18 | 宣达实业集团有限公司 | High-performance angle type stop valve |
| CN112833201A (en) * | 2021-02-04 | 2021-05-25 | 河北墨峻科技有限公司 | Integral filling type needle valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2856609Y (en) * | 2005-12-23 | 2007-01-10 | 上海化工研究院 | Cut-off valve with sylphone seal structure |
| CN201269357Y (en) * | 2008-09-09 | 2009-07-08 | 上海明珠阀门制造有限公司 | Water-sealing high temperature break valve |
| CN201909048U (en) * | 2010-11-22 | 2011-07-27 | 神华集团有限责任公司 | Globe valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3764574B2 (en) * | 1997-12-10 | 2006-04-12 | 株式会社フジキン | Metal diaphragm type valve |
| JPH11280411A (en) * | 1998-03-30 | 1999-10-12 | Mitsubishi Heavy Ind Ltd | Steam valve |
| JP2008032113A (en) * | 2006-07-28 | 2008-02-14 | Koda:Kk | Diaphragm-type valve |
-
2010
- 2010-11-22 CN CN2010105546396A patent/CN101982680B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2856609Y (en) * | 2005-12-23 | 2007-01-10 | 上海化工研究院 | Cut-off valve with sylphone seal structure |
| CN201269357Y (en) * | 2008-09-09 | 2009-07-08 | 上海明珠阀门制造有限公司 | Water-sealing high temperature break valve |
| CN201909048U (en) * | 2010-11-22 | 2011-07-27 | 神华集团有限责任公司 | Globe valve |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2008-32113A 2008.02.14 |
| JP特开平11-173429A 1999.06.29 |
| JP特开平11-280411A 1999.10.12 |
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| CN101982680A (en) | 2011-03-02 |
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