CN206754408U - A kind of high-temperature bellow valve - Google Patents
A kind of high-temperature bellow valve Download PDFInfo
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- CN206754408U CN206754408U CN201720594977.XU CN201720594977U CN206754408U CN 206754408 U CN206754408 U CN 206754408U CN 201720594977 U CN201720594977 U CN 201720594977U CN 206754408 U CN206754408 U CN 206754408U
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- bellows
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Abstract
The utility model discloses a kind of high-temperature bellow valve, including valve body, bonnet, valve rod, flap, valve seat and bellows, bonnet lumen is provided with the middle part of bonnet, electric heater unit is fixedly installed on the outer surface of bonnet, lower valve rod includes first body of rod, second body of rod and the 3rd body of rod, and the junction of first body of rod and second body of rod is provided with the first chamfering of annular；The junction of second body of rod and the 3rd body of rod is provided with the second chamfering；Guide sleeve is socketed with first body of rod, fused salt escape orifice is provided with guide sleeve, bonnet upper end is provided with closure, stem through-hole is provided with the middle part of closure, stem through-hole lower port seat is provided with sealing cone, and stem through-hole upper port position is provided with packing groove, filler is provided with packing groove, filler upper end is provided with gland, and gland upper end is provided with gland limited block.Above-mentioned technical proposal, reasonable in design, simple in construction, good seal performance, bellows service life are long, valve rod is not easy stuck, reliable operation.
Description
Technical field
It the utility model is related to valve technology field, and in particular to a kind of high-temperature bellow valve.
Background technology
The valve of sylphon seal generally uses on gate valve and stop valve, and its structure includes valve body, valve seat, flap, valve
Bar, bonnet, bellows, flap are fixed on valve rod lower end, sylphon seal are used between valve rod and bonnet, between bonnet and valve body
Connected by flange seal.Existing Bellows valve also Shortcomings：Existing Bellows valve structure design is unreasonable, when
When bellows long-term use leaks, medium will leak outside between valve rod and bonnet, flange seal between bonnet and valve body
Junction easily leaks in use, poor sealing performance；And abnormal boosting is easily caused in the bonnet lumen of bonnet, it is easily damaged ripple
Line pipe, bellows service life are short；After medium solidification in bonnet lumen valve rod can be caused stuck, cause valve not open normally
Close, in-convenience in use.
The content of the invention
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of reasonable in design, structure
Simply, good seal performance, bellows service life length, valve rod are not easy stuck, reliable operation high-temperature bellow valve.
To achieve the above object, the utility model provides following technical scheme：A kind of high-temperature bellow valve, including valve
Body, bonnet, valve rod, flap, valve seat and bellows, the valve body upper end are connected with bonnet, and bonnet is provided with the middle part of the bonnet
Lumen, electric heater unit is fixedly installed on the outer surface of the bonnet, the valve rod includes upper valve rod and lower valve rod, under described
Valve rod includes first body of rod, second body of rod and the 3rd body of rod, and the diameter of first body of rod is more than the diameter of second body of rod, the
The junction of one body of rod and second body of rod is provided with the first chamfering of annular；The diameter of second body of rod is more than the 3rd body of rod
Diameter, the junction of second body of rod and the 3rd body of rod is provided with the second chamfering；First body of rod, second body of rod and the 3rd bar
Body is set from bottom to up successively, and the lower end of first body of rod is fixedly connected with flap, and guide sleeve, institute are socketed with first body of rod
State and fused salt escape orifice is provided with guide sleeve, the bellows-sheathed is connected on second body of rod, and the bonnet upper end is provided with sealing
Lid, is provided with stem through-hole in the middle part of the closure, the closure be located at stem through-hole lower port seat be provided with it is described
The sealing cone of second chamfering matching, the closure are located at stem through-hole upper port position and are provided with packing groove, the filler
Filler is provided with groove, the filler upper end is provided with gland, and the gland upper end is provided with gland limited block.
By using above-mentioned technical proposal, electric heater unit can be powered by external power source when fused salt solidifies and be heated,
Melt fused salt, it is ensured that valve normally opens and closes；Valve rod is not easy to let out using bellows, the conical surface and filler triple seal, good seal performance
Leakage, service life length；Fused salt escape orifice is offered above guide sleeve, will in valve fast opening and closing while playing guide function
Fused-salt medium is released to valve body middle chamber in time, prevents bonnet lumen from boosting extremely, bellows is played a protective role；Structure design
Rationally, it is good that simple in construction, valve rod is not easy stuck, reliable operation, practicality.
The utility model is further arranged to：The bonnet lumen lower end is provided with annular slot, the guide sleeve it is outer
Surface lower end has been wholely set positioning convex ring, and the guide sleeve is spacing by positioning convex ring and annular slot clamping.By originally setting
Put, structure setting is more reasonable, and guide sleeve is easy to connect, and work is relatively reliable.
The utility model is further arranged to：The vertical centerline of fused salt escape orifice on the guide sleeve and described the
The vertical centerline of one body of rod is parallel to each other.By this setting, it is more reasonable that fused salt escape orifice is set, and work is relatively reliable.
The utility model is further arranged to：The valve body upper end is provided with a valve rod import, the valve rod import
Upper end is provided with valve seals installation gap, and the bonnet lower end has been wholely set a connection bulge loop, and the connection bulge loop
Valve rod import setting is stretched into, the valve seals installation gap forms one first sealing together with the outer surface for connecting bulge loop
Installation cavity is enclosed, a valve seals are provided with the first sealing ring installation cavity.Pass through this setting, structure setting more adduction
Reason, sealing property is more preferable between bonnet and valve body, is not easy to leak.
The utility model is further arranged to：The valve seals are nickel-base alloy c-type circle, and the valve body and valve
Lid is bolted.By this setting, sealed using c-type circle, compensation rate is big, can meet making for high temperature low-temperature circulating operating mode
With.
The utility model is further arranged to：Second body of rod lower end is socketed with valve stem packing ring, and the valve rod is close
Seal and the internal face clamping of bellows seal.By this setting, better tightness between valve rod and bellows.
The utility model is further arranged to：The bellows lower end face and the upper surface of guide sleeve connect, the ripple
The upper surface of line pipe is welded with corrugated header, and the upper surface of the upper corrugated header and the lower surface of closure connect.Pass through
This setting, bellows connection is reliable, good airproof performance.
The utility model is further arranged to：The outer surface lower end that the closure stretches into bonnet lumen section is provided with one
In individual seal cap sealing circle installation gap, the seal cap sealing circle installation gap and upper corrugated header upper surface and bonnet lumen
A second sealing ring installation cavity is formed between wall, a seal cap sealing circle is provided with the second sealing ring installation cavity,
The seal cap sealing circle is nickel-base alloy c-type circle.By this setting, good airproof performance between closure, bonnet and bellows, it is not easy
Leakage.
The utility model is further arranged to：Regulating bolt is provided with the gland limited block, on the closure
End is provided with bolt hole, and the regulating bolt lower end is threadedly coupled with bolt hole, is limited by screwing regulating bolt to compress gland
Position block.Simple in construction by this setting, gland limited block is fixed reliable.
The utility model is further arranged to：Body of rod company is provided between the upper valve rod lower end and the 3rd body of rod upper end
Fitting, upper valve rod and the 3rd body of rod connect and compose one by body of rod connector, and the upper valve rod upper end is provided with closing buffering
Mechanism.By this setting, buffer gear is closed, prevents high temperature because quick regulation or by mistake closing motion cause sealing surface impact to carry
Destruction caused by lotus.
The utility model has the advantages that：Compared with prior art, the utility model structure setting is more reasonable, electrical heating dress
Put to power by external power source when fused salt solidifies and heat, melt fused salt, it is ensured that valve normally opens and closes；Valve rod uses ripple
Pipe, the conical surface and filler triple seal, good seal performance, are not easy to leak, service life length；Fused salt is offered above guide sleeve to release
Hole, fused-salt medium is released to valve body middle chamber in time in valve fast opening and closing while playing guide function, prevented in bonnet
Chamber is boosted extremely, and bellows is played a protective role；Reasonable in design, simple in construction, valve rod be not easy stuck, reliable operation,
Practicality is good.
With reference to Figure of description and specific embodiment, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is the enlarged diagram in I portions in Fig. 1.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of high-temperature bellow valve disclosed in the utility model, including valve body 1, bonnet 2, valve rod
3rd, flap 4, valve seat 5 and bellows 6, the upper end of valve body 1 are connected with bonnet 2, and the middle part of bonnet 2 is provided with bonnet lumen
21, electric heater unit 7 is fixedly installed on the outer surface of the bonnet 2, the valve rod 3 includes upper valve rod 31 and lower valve rod 32,
The lower valve rod 32 includes first body of rod 321, second body of rod 322 and the 3rd body of rod 323, and the diameter of first body of rod 321 is big
In the diameter of second body of rod 322, the first annular chamfering is provided with the junction of first body of rod 321 and second body of rod 322
324；The diameter of second body of rod 322 is more than the diameter of the 3rd body of rod 323, in second body of rod 322 and the 3rd body of rod 323
Junction is provided with the second chamfering 325；First body of rod 321, second body of rod 322 and the 3rd body of rod 323 are successively from bottom to up
Set, the lower end of first body of rod 321 is fixedly connected with flap 4, and guide sleeve 8 is socketed with first body of rod 321, described to lead
Fused salt escape orifice 81 is provided with to set 8, the bellows 6 is socketed on second body of rod 322, and the upper end of bonnet 2 is provided with
Closure 9, the middle part of closure 9 are provided with stem through-hole 91, and the closure 9 is located at the lower port seat of stem through-hole 91 and set
The sealing cone 92 matched with second chamfering 325 is equipped with, the closure 9 is located at the upper port position of stem through-hole 91 and set
Packing groove 93 is equipped with, filler 10 is provided with the packing groove 93, the upper end of filler 10 is provided with gland 11, described to fill out
Material gland 11 upper end is provided with gland limited block 12.
As preferable, first body of rod 321, second body of rod 322 and the 3rd body of rod 323 are wholely set, and the first bar
The vertical centerline of body 321, second body of rod 322 and the 3rd body of rod 323 overlaps；The angle of first chamfering 324 and the second chamfering 325
Degree is 30 °, 45 ° or 60 °；The valve seat 5 is wholely set with valve body 1, the lower end of 4 and first body of rod of flap 321 be welded and fixed or
Fixed by existing bolt connection；Closure 9 is locked with the upper end of bonnet 2 by existing bolt；Filler 10 is high temperature
Gu power spy's filler.
To make the utility model structure more reasonable, as preferable, the lower end of bonnet lumen 21 setting described in the present embodiment
There is annular slot 211, the outer surface lower end of the guide sleeve 8 has been wholely set positioning convex ring 82, and the guide sleeve 8 passes through positioning
Bulge loop 82 and the clamping of annular slot 211 are spacing.
The vertical centerline of fused salt escape orifice 81 on the guide sleeve 8 and the vertical centerline of first body of rod 321
It is parallel to each other.
The upper end of valve body 1 is provided with a valve rod import 13, and the upper end of valve rod import 13 is provided with valve seals
Installation gap 131, the lower end of bonnet 2 has been wholely set a connection bulge loop 22, and the connection bulge loop 22 stretches into valve rod import
13 are set, and the valve seals installation gap 131 forms first sealing ring together with the outer surface for connecting bulge loop 22 pacifies
It behave affectedly, a valve seals 14 is provided with the first sealing ring installation cavity.The valve seals 14 are nickel-base alloy C
Type circle, and the valve body 1 is bolted with bonnet 2.
The lower end of second body of rod 322 is socketed with valve stem packing ring 15, and the valve stem packing ring 15 is interior with bellows 6
Wall clamping seals.
The lower surface of bellows 6 is connected with the upper surface of guide sleeve 8, and the upper surface of the bellows 6 is welded with upper ripple
Line base 61, the upper surface of the upper corrugated header 61 are connected with the lower surface of closure 9.
The outer surface lower end that the closure 9 stretches into bonnet lumen section is provided with a seal cap sealing circle installation gap
94, formed between the seal cap sealing circle installation gap 94 and the upper surface of upper corrugated header 61 and the internal face of bonnet lumen 21
One the second sealing ring installation cavity, a seal cap sealing circle 16 is provided with the second sealing ring installation cavity, the closure is close
Seal 16 is nickel-base alloy c-type circle.
Regulating bolt 18 is provided with the gland limited block 12, the upper end of closure 9 is provided with bolt hole 95, institute
State the lower end of regulating bolt 18 to be threadedly coupled with bolt hole 95, gland limited block 12 is compressed by screwing regulating bolt 18.
Body of rod connector 19, upper valve rod 31 and are provided between the lower end of upper valve rod 31 and the upper end of the 3rd body of rod 323
Three bodies of rod 323 connect and compose one by body of rod connector 19, and the upper end of upper valve rod 31, which is provided with, closes buffer gear 20.
The bellows 6 uses high-temperature nickel-base alloy bellows, and high temperature resistant is up to more than 600 DEG C.Streamlined casting valve body
Design, it is ensured that runner smoothness is without dead angle.The valve seat binding curve flap design integral with valve body, runner is simple, existing good
Regulation performance, have excellent cutoff performance again.
The outer surface of electric heater unit 7 and bonnet 2 described in the present embodiment is welded and fixed or by existing mode connects for screw
It is fixed, and electric heater unit 7 and closing buffer gear 20 are existing product, this technology is well known to those skilled in the art
, the present embodiment is just no longer described.
During practical application, electric heater unit can be powered by external power source when fused salt solidifies and be heated, and melt fused salt, really
Valve is protected normally to open and close；Valve rod is not easy to leak, service life using bellows, the conical surface and filler triple seal, good seal performance
It is long；Fused salt escape orifice is offered above guide sleeve, while playing guide function in valve fast opening and closing by fused-salt medium and
When be released to valve body middle chamber, prevent bonnet lumen extremely boost, bellows is played a protective role；Reasonable in design, structure
Simply, it is good to be not easy stuck, reliable operation, practicality for valve rod.
Above-described embodiment is served only for that the utility model is further described, no to specific descriptions of the present utility model
It is understood that as the restriction to scope of protection of the utility model, the technician of this area is according to the content pair of above-mentioned utility model
The utility model is made some nonessential modifications and adaptations and each fallen within the scope of protection of the utility model.
Claims (10)
1. a kind of high-temperature bellow valve, including valve body (1), bonnet (2), valve rod (3), flap (4), valve seat (5) and bellows
(6), valve body (1) upper end is connected with bonnet (2), is provided with bonnet lumen (21) in the middle part of the bonnet (2), its feature exists
In：Be fixedly installed electric heater unit (7) on the outer surface of the bonnet (2), the valve rod (3) include upper valve rod (31) and under
Valve rod (32), the lower valve rod (32) include first body of rod (321), second body of rod (322) and the 3rd body of rod (323), and described
The diameter of one body of rod (321) is more than the diameter of second body of rod (322), in the combination of first body of rod (321) and second body of rod (322)
Place is provided with the first chamfering (324) of annular；The diameter of second body of rod (322) is more than the diameter of the 3rd body of rod (323),
The junction of second body of rod (322) and the 3rd body of rod (323) is provided with the second chamfering (325)；First body of rod (321),
Bipole body (322) and the 3rd body of rod (323) are set from bottom to up successively, and the lower end of first body of rod (321) and flap (4) are solid
It is fixed to connect, guide sleeve (8) is socketed with first body of rod (321), fused salt escape orifice (81), institute are provided with the guide sleeve (8)
State bellows (6) to be socketed on second body of rod (322), bonnet (2) upper end is provided with closure (9), the closure (9)
Middle part is provided with stem through-hole (91), and the closure (9) is located at stem through-hole (91) lower port seat and is provided with and described
The sealing cone (92) of two chamferings (325) matching, the closure (9), which is located at stem through-hole (91) upper port position and is provided with, fills out
Hopper (93), the packing groove (93) is interior to be provided with filler (10), and filler (10) upper end is provided with gland (11), institute
State gland (11) upper end and be provided with gland limited block (12).
A kind of 2. high-temperature bellow valve according to claim 1, it is characterised in that：Bonnet lumen (21) lower end is set
Annular slot (211) is equipped with, the outer surface lower end of the guide sleeve (8) has been wholely set positioning convex ring (82), the guide sleeve
(8) it is spacing by positioning convex ring (82) and annular slot (211) clamping.
A kind of 3. high-temperature bellow valve according to claim 2, it is characterised in that：Fused salt on the guide sleeve (8)
The vertical centerline of escape orifice (81) and the vertical centerline of first body of rod (321) are parallel to each other.
A kind of 4. high-temperature bellow valve according to claim 1 or 3, it is characterised in that：Valve body (1) upper end is set
There is a valve rod import (13), valve rod import (13) upper end is provided with valve seals installation gap (131), the bonnet
(2) lower end has been wholely set a connection bulge loop (22), and the connection bulge loop (22) stretches into valve rod import (13) setting, the valve
Body sealing ring installation gap (131) forms a first sealing ring installation cavity together with the outer surface of connection bulge loop (22), described
A valve seals (14) is provided with first sealing ring installation cavity.
A kind of 5. high-temperature bellow valve according to claim 4, it is characterised in that：The valve seals (14) are nickel
Based alloy c-type circle, and the valve body (1) is bolted with bonnet (2).
A kind of 6. high-temperature bellow valve according to claim 1, it is characterised in that：Second body of rod (322) lower end
Valve stem packing ring (15) is socketed with, the valve stem packing ring (15) and the internal face clamping of bellows (6) seal.
A kind of 7. high-temperature bellow valve according to claim 1, it is characterised in that：Bellows (6) lower surface with
The upper surface connection of guide sleeve (8), the upper surface of the bellows (6) is welded with corrugated header (61), the upper bellows
The upper surface of seat (61) is connected with the lower surface of closure (9).
A kind of 8. high-temperature bellow valve according to claim 7, it is characterised in that：The closure (9) stretches into bonnet
The outer surface lower end of lumen section is provided with a seal cap sealing circle installation gap (94), the seal cap sealing circle installation gap
(94) a second sealing ring installation cavity is formed between upper corrugated header (61) upper surface and bonnet lumen (21) internal face, should
A seal cap sealing circle (16) is provided with second sealing ring installation cavity, the seal cap sealing circle (16) is nickel-base alloy c-type
Circle.
A kind of 9. high-temperature bellow valve according to claim 1, it is characterised in that：Set on the gland limited block (12)
Regulating bolt (18) is equipped with, closure (9) upper end is provided with bolt hole (95), regulating bolt (18) lower end and bolt
Hole (95) is threadedly coupled, and gland limited block (12) is compressed by screwing regulating bolt (18).
A kind of 10. high-temperature bellow valve according to claim 1, it is characterised in that：Upper valve rod (31) lower end with
Body of rod connector (19) is provided between 3rd body of rod (323) upper end, upper valve rod (31) and the 3rd body of rod (323) are connected by the body of rod
Fitting (19) connects and composes one, and upper valve rod (31) upper end, which is provided with, closes buffer gear (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594977.XU CN206754408U (en) | 2017-05-25 | 2017-05-25 | A kind of high-temperature bellow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594977.XU CN206754408U (en) | 2017-05-25 | 2017-05-25 | A kind of high-temperature bellow valve |
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| Publication Number | Publication Date |
|---|---|
| CN206754408U true CN206754408U (en) | 2017-12-15 |
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ID=60619211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720594977.XU Active CN206754408U (en) | 2017-05-25 | 2017-05-25 | A kind of high-temperature bellow valve |
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| CN (1) | CN206754408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969158A (en) * | 2017-05-25 | 2017-07-21 | 五洲阀门股份有限公司 | A kind of high-temperature bellow valve |
| CN111677883A (en) * | 2020-06-18 | 2020-09-18 | 南通国电阀门科技有限公司 | Supercritical high-temperature high-pressure pollution discharge type pneumatic corrugated pipe adjusting valve |
-
2017
- 2017-05-25 CN CN201720594977.XU patent/CN206754408U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969158A (en) * | 2017-05-25 | 2017-07-21 | 五洲阀门股份有限公司 | A kind of high-temperature bellow valve |
| CN111677883A (en) * | 2020-06-18 | 2020-09-18 | 南通国电阀门科技有限公司 | Supercritical high-temperature high-pressure pollution discharge type pneumatic corrugated pipe adjusting valve |
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